CN110891291A - Method and apparatus for transmitting and receiving control information - Google Patents

Abstract

The application provides a method and a device for sending and receiving control information, wherein the method comprises the following steps: the first terminal device determines a first bandwidth portion BWP; the first terminal device transmits N times of control information to a second terminal device, wherein at least one of the N times of control information includes first indication information for activating the first bandwidth portion BWP, N being a positive integer greater than or equal to 1. According to the technical scheme of the embodiment of the application, the second terminal equipment can be ensured to acquire the switching information of the bandwidth part of the first terminal equipment, so that side link interruption is avoided, and the communication efficiency of the side link is improved.

Description

Method and apparatus for sending and receiving control information

technical field

The present application relates to the field of communications, and in particular, to a method and apparatus for sending and receiving control information in the field of communications.

Background technique

On the sidelink (sidelink) of the new radio (NR) of the fifth generation communication system (5th generation, 5G), that is, the device to device (D2D) communication link, network devices will be configured with multiple A bandwidth part (BWP) is sent to the sending terminal, and the sending terminal is triggered by DCI to dynamically switch between the physical sidelink discovery channel (PSDCH) and the physical sidelink control channel (physical sidelink control channel) between multiple BWPs. sidelink control channel, PSCCH). The switching mechanism of the BWP in the existing NR is that the physical downlink control channel (PDCCH) is on the old BWP, and the data channel is on the new BWP.

Therefore, after the transmitting terminal switches the bandwidth part, the side link between the transmitting terminal and the receiving terminal may be interrupted.

SUMMARY OF THE INVENTION

The present application provides a method and apparatus for transmitting control information, which avoids interruption of a side link between a sending terminal and a receiving terminal, and improves the communication efficiency of the side link.

In a first aspect, a method for sending control information is provided, including:

The first terminal device determines the first bandwidth part BWP;

The first terminal device sends control information to the second terminal device N times, and at least one of the N times of control information includes first indication information, where the first indication information is used to activate the first bandwidth part BWP, the N is a positive integer greater than or equal to 1.

In this embodiment of the present application, the second terminal device may determine the bandwidth part BWP to be switched by the first terminal device according to the first indication information included in the control information sent by the first terminal device, so as to avoid the need for the first terminal device and the second terminal device to The side link between them is interrupted, which improves the communication efficiency of the side link.

It should be understood that, in this embodiment of the present application, the first BWP may be a new BWP switched by the first terminal device, and before the first terminal device switches communication resources, the first terminal device and the second terminal device may use the second BWP to communicate. The first terminal device may be a sending terminal device, and the second terminal device may be a receiving terminal device.

With reference to the first aspect, in some implementations of the first aspect, at least one of the N times of control information further includes second indication information, where the second indication information is used to deactivate the second BWP.

For example, when the first terminal device and the second terminal device support a BWP connection, the control information sent by the first terminal device to the second terminal device may include first indication information for activating the second BWP, or may include Deactivate the second indication information of the second BWP.

It should be understood that when the first terminal device and the second terminal device support the connection of one BWP, the first BWP and the second BWP cannot be in an active state at the same time. That is, the first BWP is in the activated state, and the second BWP is in the deactivated state; or the second BWP is in the deactivated state, and the first BWP is in the activated state.

It should be noted that, in this embodiment of the present application, the control information may also be used to schedule data information, that is, the first terminal device sends control information to the second terminal device, and the control information may also be used to instruct the first terminal device to send data Information resources, after the second terminal device obtains the resources for receiving data information, the second terminal device can receive the data information sent by the first terminal device at the corresponding resource location, so as to avoid the second terminal device switching BWP when the first terminal device switches BWP. The device cannot obtain data information.

With reference to the first aspect, in some implementations of the first aspect, the first terminal device sends control information to the second terminal device N times, including:

The first terminal device sends the control information K times on the second BWP, and sends the control information on the first BWP N-K times;

At least one of the N times of control information includes first indication information, including:

At least one of the K times of control information includes the first indication information, and K is a positive integer less than or equal to N.

It should be understood that when the first terminal device switches from the second BWP to the first BWP, it needs to send control information to the second terminal device at least once on the second BWP, so that the second terminal device receives the control information and sends the control information to the first BWP. Information sent by the first terminal device is received to avoid interruption of the side link between the first terminal device and the second terminal device.

With reference to the first aspect, in some implementations of the first aspect, the first terminal device sends control information to the second terminal device N times, including:

The first terminal device sends the control information N times to the second terminal device on a third BWP, where the third BWP is at least two activated between the first terminal device and the second terminal device One of the BWPs.

It should be understood that when the first terminal device and the second terminal device support multiple activated BWPs, for example, the connection between the first terminal device and the second terminal device supports two or more bandwidth parts or carriers , the first terminal device may send the control information N times to the second terminal device through a BWP or carrier in an active state.

With reference to the first aspect, in some implementations of the first aspect, the control information further includes resource information of the first data packet, and the method further includes:

The first terminal device sends the first data packet X times to the second terminal device, where X is a positive integer.

It should be noted that, in this embodiment of the present application, the control information may also be used to schedule data information, that is, the first terminal device sends control information to the second terminal device, and the control information may further include information resources of the first data packet.

It should be understood that the first terminal device may send control information to the second terminal device, and may also send data packets to the second terminal device. If the data packet and the control information are frequency-division multiplexed, the control information and the data packet can be sent on the same time slot. If the data packets and the control information are time-division multiplexed, the control information and the data packets can be sent on different time slots.

With reference to the first aspect, in some implementations of the first aspect, the first terminal device sends the first data packet X times to the second terminal device, including:

The first terminal device sends the first data packet Y times on the second BWP, and sends the first data packet X-Y times on the first BWP, where Y is a positive integer less than or equal to X.

With reference to the first aspect, in some implementations of the first aspect, the K is determined according to a first time M, and the first time M is a processing delay value of the first terminal device or the The timing value configured by the network device to the first terminal device.

With reference to the first aspect, in some implementations of the first aspect, the Y is determined according to a second time L, and the second time L is a processing delay value of the first terminal device or the The timing value configured by the network device to the first terminal device.

With reference to the first aspect, in some implementations of the first aspect, the value of K is included in at least one control information that the first terminal device sends the control information K times to the second terminal device.

With reference to the first aspect, in some implementations of the first aspect, the value of the first time M is included in the at least one control information that the first terminal device sends the control information K times to the second terminal device. The first time M is the shortest time for the second BWP to switch to the first BWP.

With reference to the first aspect, in some implementations of the first aspect, the K is determined according to the first time M.

For example, before the first time M, the first terminal device sends the control information on the second BWP K times; after the first time M, the first terminal device sends the control information on the first BWP N-K times, wherein the K At least one of the secondary control information includes the first indication information, and K is a positive integer less than or equal to N.

With reference to the first aspect, in some implementations of the first aspect, the Y is determined according to a second time L, and the second time L is a processing delay value of the first terminal device or the The timing value configured by the network device to the first terminal device.

With reference to the first aspect, in some implementations of the first aspect, the value of Y is included in at least one control information that the first terminal device sends to the second terminal device K times of control information.

With reference to the first aspect, in some implementations of the first aspect, the value of the second time L is included in at least one control information that the first terminal device sends the control information K times to the second terminal device. The second time L is the shortest time during which data on the second BWP is switched to the first BWP.

With reference to the first aspect, in some implementations of the first aspect, the Y is determined according to the second time L.

In combination with the first aspect, in some implementations of the first aspect, the second time L may be the same as the first time M.

It should be understood that the first time M may be a delay value of control information, the second time L may be a delay value of data information, and the first time M and the second time L may be the same or different.

In an example, before the first time M, the first terminal device sends data information on the second BWP Y times; after the first time M, the first terminal device sends data information on the first BWP X-Y times. The first time M may be a processing delay value of the first terminal device or may be a timing value configured by the network device to the first terminal device.

With reference to the first aspect, in some implementations of the first aspect, the K-time control information includes resource information of the Y-time first data packet; the K-time control information or the N-K times control information includes all Describe the resource information of the first data packet X-Y times.

With reference to the first aspect, in some implementations of the first aspect, the first terminal device receives third indication information sent by a network device, where the third indication information is used to instruct the first terminal device to switch to the first terminal device a bandwidth part.

For example, the network device may send the DCI to the first terminal device or the network device may send the first message to the first terminal device, where the DCI or the first message includes instruction information instructing the first terminal device to switch to the first BWP.

In conjunction with the first aspect, in some implementations of the first aspect, the method further includes:

receiving, by the first terminal device, configuration information sent by the network device, where the configuration information includes information about at least one bandwidth portion configured by the network device to the first terminal device;

The first terminal device sends the configuration information to the second terminal device.

It should be understood that in this embodiment of the present application, the network device may send configuration information of multiple BWPs configured to the first terminal device, and the first terminal device may forward the configuration information to the second terminal device after receiving the configuration information.

With reference to the first aspect, in some implementations of the first aspect, the first indication information is an identifier of the first bandwidth portion.

It should be understood that the control information includes first indication information, and the first indication information is that the identification of the first bandwidth part is a display indication manner.

With reference to the first aspect, in some implementations of the first aspect, the control information is carried in physical layer signaling, or medium access control MAC layer signaling, or radio resource control RRC layer signaling.

In a second aspect, a method for sending control information, comprising:

The first terminal device determines the first bandwidth part BWP;

The first terminal device sends the control information to the second terminal device N times, at least one of the N times of control information is sent on the first resource, and the N is a positive integer greater than or equal to 1, The first resource is determined according to the first BWP.

In this embodiment of the present application, the first terminal device may instruct the second terminal device to activate the first bandwidth part in an implicit manner, that is, the instruction may be performed by sending the control information on the first resource at least once in the N times of control information.

With reference to the second aspect, in some implementations of the second aspect, at least one control information in the N times of control information is sent on the first resource is also used to deactivate the second BWP, and the first resource is one of the first subchannel on the second BWP, the first resource pool on the second BWP, or the first dedicated resource on the second BWP, and the method includes:

The first terminal device sends control information N times to the second terminal device, and at least one control information in the N times of control information is in the first subchannel, or the first resource pool, or the first subchannel. Sent on a dedicated resource, the first subchannel, or the first resource pool, or the first dedicated resource is determined according to the first BWP.

For example, the control information is associated with a specific subchannel on the second BWP. If the first terminal device sends the last control information on the specific subchannel reserved on the second BWP, it indicates that it will switch to the new BWP next time.

That is, if the first terminal device has multiple configuration BWPs, multiple subchannels are required. For example, if there are 4 BWP configurations, that is, in addition to the currently activated BWP, there are 3 switchable BWPs, and 3 subchannels need to be reserved.

For example, the control information is associated with a dedicated resource or resource pool on the second BWP, and the last control information is sent on the resource pool on the second BWP. If the second terminal device detects the control information on the resource pool, it will switch to the new BWP. .

That is, if the first terminal device has multiple configured BWPs, multiple dedicated resources are required. For example, if there are 4 BWP configurations, that is, in addition to the currently activated BWP, there are 3 switchable BWPs, and 3 dedicated resources need to be reserved.

With reference to the second aspect, in some implementations of the second aspect, the first terminal device sends control information to the second terminal device N times on the second BWP, including:

The first terminal device sends control information K times on the second BWP, and sends control information on the first BWP N-K times;

At least one of the N times of control information is sent on the first subchannel, or the first resource pool, or the first dedicated resource, including:

At least one control information in the K times of control information is sent on the first subchannel, or the first resource pool, or the first dedicated resource.

With reference to the second aspect, in some implementations of the second aspect, the first resource is a second subchannel on the third BWP, a second resource pool on the third BWP, or a second dedicated second resource on the third BWP One of the resources, the third BWP is one of at least two BWPs that have been activated between the first terminal device and the second terminal device, and the method includes:

The first terminal device sends control information N times to the second terminal device on the third BWP, and at least one control information in the N times of control information is on the second subchannel or the second The resource pool, or sent on the second dedicated resource, the second subchannel, or the second resource pool, or the second dedicated resource is determined according to the first BWP.

With reference to the second aspect, in some implementations of the second aspect, the control information further includes resource information of the first data packet, and the method further includes:

The first terminal device sends the first data packet X times to the second terminal device, where X is a positive integer.

With reference to the second aspect, in some implementations of the second aspect, the first terminal device sends the first data packet X times to the second terminal device, including:

The first terminal device sends the first data packet Y times on the second BWP, and sends the first data packet X-Y times on the first BWP, where Y is a positive integer less than or equal to X.

With reference to the second aspect, in some implementations of the second aspect, the K is determined according to a first time M, and the first time M is a processing delay value of the first terminal device or the The timing value configured by the network device to the first terminal device.

With reference to the second aspect, in some implementations of the second aspect, the Y is determined according to a second time L, and the second time L is a processing delay value of the first terminal device or the The timing value configured by the network device to the first terminal device.

With reference to the second aspect, in some implementations of the second aspect, the K-th control information includes resource information of the Y-th first data packet; the K-th control information or the N-K-th control information includes all Describe the resource information of the first data packet X-Y times.

In a third aspect, a method for receiving control information is provided, including:

The second terminal device receives N times of control information sent by the first terminal device, wherein at least one of the N times of control information includes first indication information, where the first indication information is used to activate the first bandwidth Part of the BWP, the N is a positive integer greater than or equal to 1;

The second terminal device activates the first BWP according to the first indication information.

In this embodiment of the present application, the second terminal device may determine the bandwidth part BWP to be switched by the first terminal device according to the first indication information included in the control information sent by the first terminal device, so as to avoid the need for the first terminal device and the second terminal device to The side link between them is interrupted, which improves the communication efficiency of the side link.

With reference to the third aspect, in some implementations of the third aspect, at least one of the N times of control information further includes second indication information, where the second indication information is used to deactivate the second BWP.

With reference to the third aspect, in some implementations of the third aspect, the control information is further used to instruct the first terminal device to send data information resources.

With reference to the third aspect, in some implementation manners of the third aspect, the second terminal device receives the control information sent by the first terminal device N times, including:

The second terminal device receives control information K times on the second BWP, and receives control information on the first BWP N-K times, wherein at least one of the K times of control information includes the first indication information, and K is a positive integer less than or equal to N.

With reference to the third aspect, in some implementation manners of the third aspect, the value of K is included in at least one control information that the second terminal device receives K times of control information sent by the first terminal device.

With reference to the third aspect, in some implementation manners of the third aspect, the value of the first time M is included in at least one control information that the second terminal device receives K times of control information sent by the first terminal device. The first time M is the shortest time for the second BWP to switch to the first BWP.

With reference to the third aspect, in some implementations of the third aspect, the K is determined according to a first time M, and the first time M is a processing delay value of the first terminal device or the The timing value configured by the network device to the first terminal device.

With reference to the third aspect, in some implementation manners of the third aspect, the second terminal device receives the control information sent by the first terminal device N times, including:

The second terminal device receives the control information N times at a third BWP, where the third BWP is one of at least two BWPs that have been activated between the first terminal device and the second terminal device.

In conjunction with the third aspect, in some implementations of the third aspect, the method further includes:

The second terminal device receives the data information sent by the first terminal device X times, where X is a positive integer.

With reference to the second aspect, in some implementations of the second aspect, the second terminal device receives data information sent by the first terminal device X times, including:

The second terminal device receives data information Y times on the second BWP, and receives data information X-Y times on the first BWP, where Y is a positive integer less than or equal to X.

With reference to the third aspect, in some implementation manners of the third aspect, the value of Y is included in at least one control information that the second terminal device receives K times of control information sent by the first terminal device.

With reference to the third aspect, in some implementation manners of the third aspect, the value of the second time L is included in at least one control information that the second terminal device receives K times of control information sent by the first terminal device. The second time L is the shortest time during which data on the second BWP is switched to the first BWP.

With reference to the third aspect, in some implementations of the third aspect, the Y is determined according to a second time L, and the second time L is a processing delay value of the first terminal device or the The timing value configured by the network device to the first terminal device.

It should be understood that the first time M may be a delay value of control information, the second time L may be a delay value of data information, and the first time M and the second time L may be the same or different.

With reference to the third aspect, in some implementations of the third aspect, the K times of control information includes the resource information of the first data packet of the Y times; the K times of control information or the N-K times of control information Including the resource information of the first data packet of the X-Y times.

With reference to the third aspect, in some implementations of the third aspect, the first indication information is an identifier of the first bandwidth part.

With reference to the third aspect, in some implementations of the third aspect, the control information is carried in physical layer signaling, or MAC layer signaling, or RRC layer signaling.

In a fourth aspect, a method for receiving control information is provided, including:

The second terminal device receives N times of control information sent by the first terminal device, at least one of the N times of control information is received on the first resource, and N is a positive integer greater than or equal to 1;

The second terminal device determines to activate the first bandwidth part BWP according to the first resource.

With reference to the fourth aspect, in some implementations of the fourth aspect, at least one of the N times of control information is sent on the first resource and is also used to deactivate the second BWP, and the first resource is one of the first subchannel on the second BWP, the first resource pool on the second BWP, or the first dedicated resource on the second BWP, and the method includes:

The second terminal device receives the N times of control information sent by the first terminal device, and at least one of the N times of control information is in the first subchannel or the first resource pool. , or received on the first dedicated resource, and the first BWP is determined according to the first subchannel, or the first resource pool, or the first dedicated resource.

With reference to the fourth aspect, in some implementation manners of the fourth aspect, the second terminal device receives the control information sent by the first terminal device N times, including:

The second terminal device receives the control information sent by the first terminal device K times on the second BWP, and receives the control information on the first BWP for N-K times;

At least one of the N times of control information is received on the first subchannel, or the first resource pool, or the first dedicated resource, including:

At least one control information in the K times of control information is received on the first subchannel, or the first resource pool, or the first dedicated resource.

With reference to the fourth aspect, in some implementations of the fourth aspect, the first resource is the second subchannel on the third BWP, the second resource pool on the third BWP, or the second dedicated resource on the third BWP One of the resources, the third BWP is one of at least two BWPs that have been activated between the first terminal device and the second terminal device, and the method includes:

The second terminal device receives, on the third BWP, the control information sent by the first terminal device N times, and at least one control information in the N times of control information is on the second subchannel, or the second subchannel. received on the second resource pool or the second dedicated resource, and the first BWP is determined according to the second subchannel, or the second resource pool, or the second dedicated resource.

With reference to the fourth aspect, in some implementations of the fourth aspect, the control information further includes resource information of the first data packet, and the method further includes:

The first terminal device sends the first data packet X times to the second terminal device, where X is a positive integer.

With reference to the fourth aspect, in some implementations of the fourth aspect, the first terminal device sends the first data packet X times to the second terminal device, including:

The first terminal device sends the first data packet Y times on the second BWP, and sends the first data packet X-Y times on the first BWP, where Y is a positive integer less than or equal to X.

With reference to the fourth aspect, in some implementations of the fourth aspect, the K is determined according to a first time M, and the first time M is a processing delay value of the first terminal device or the The timing value configured by the network device to the first terminal device.

With reference to the fourth aspect, in some implementations of the fourth aspect, the Y is determined according to a second time L, and the second time L is a processing delay value of the first terminal device or the The timing value configured by the network device to the first terminal device.

With reference to the fourth aspect, in some implementations of the fourth aspect, the K-th control information includes resource information of the Y-th first data packet; the K-th control information or the N-K-th control information includes all Describe the resource information of the first data packet X-Y times.

In a fifth aspect, a method for sending indication information is provided, including:

The network device configures at least one bandwidth portion of the first terminal device;

The network device sends first indication information to the first terminal device and the second terminal device, where the first indication information is used to activate the first bandwidth part BWP.

In the embodiment of the present application, the first terminal device and the second terminal device can obtain the first indication information sent by the network device, so as to determine the handover bandwidth part of the first terminal device, so as to avoid the communication between the first terminal and the receiving terminal. The side link is interrupted, which improves the communication efficiency of the side link.

With reference to the fifth aspect, in some implementations of the fifth aspect, the first indication information is carried in an MIB message; or, the first indication information is carried in a SIB message; or, the first indication information is carried in a RRC signaling; or, the first indication information is carried in MAC signaling; or, the first indication information is carried in DCI signaling.

With reference to the fifth aspect, in some implementations of the fifth aspect, the first indication information includes an identifier of the first terminal device, an identifier of the second terminal device, an identifier of a pair of terminal devices, and an identifier of a terminal device at least one of group identifiers, wherein the terminal device pair and the terminal device group include the first terminal device and the second terminal device.

In conjunction with the fifth aspect, in some implementations of the fifth aspect, the method further includes:

The network device sends configuration information to the first terminal device and the second terminal device, where the configuration information includes information of at least one bandwidth part configured by the network device to the first terminal device.

With reference to the fifth aspect, in some implementations of the fifth aspect, the configuration information includes an identifier of the first terminal device, an identifier of the second terminal device, an identifier of a pair of terminal devices, and an identifier of a terminal device group. At least one of the identifiers, wherein the terminal device pair and the terminal device group include the first terminal device and the second terminal device.

In a sixth aspect, a method for receiving indication information is provided, including:

The second terminal device receives the first indication information sent by the network device, where the first indication information is used to activate the first bandwidth part BWP;

The second terminal device activates the first BWP according to the first indication information.

In the embodiment of the present application, the second terminal device may obtain the first indication information sent by the network device, so as to determine the handover bandwidth part of the first terminal device, so as to avoid interruption of the side link between the first terminal and the receiving terminal, Improve the communication efficiency of the side link.

With reference to the sixth aspect, in some implementations of the sixth aspect, the first indication information is carried in an MIB message; or, the first indication information is carried in a SIB message; or, the first indication information is carried in a RRC signaling; or, the first indication information is carried in MAC signaling; or, the first indication information is carried in DCI signaling.

With reference to the sixth aspect, in some implementations of the sixth aspect, the first indication information includes at least one of an identifier of the second terminal device, an identifier of a pair of terminal devices, and an identifier of a terminal device group, wherein, The terminal device pair and the terminal device group include the second terminal device.

In conjunction with the sixth aspect, in some implementations of the sixth aspect, the method further includes:

The second terminal device receives the configuration information sent by the network device, where the configuration information includes information of at least one bandwidth part configured by the network device to the first terminal device.

With reference to the sixth aspect, in some implementations of the sixth aspect, the configuration information includes at least one of an identifier of the second terminal device, an identifier of a terminal device pair, and an identifier of a terminal device group, wherein the The terminal device pair and the terminal device group include the second terminal device.

A seventh aspect provides an apparatus for sending control information, comprising:

a processing unit, configured to determine the first bandwidth part BWP; a communication unit, configured to send N times of control information to the second terminal device, at least one of the N times of control information includes first indication information, wherein the first The indication information is used to activate the first bandwidth part BWP, and the N is a positive integer greater than or equal to 1.

It should be understood that the apparatus for sending control information in this embodiment of the present application may be a first terminal device.

With reference to the seventh aspect, in some implementations of the seventh aspect, at least one of the N times of control information further includes second indication information, where the second indication information is used to deactivate the second BWP.

With reference to the seventh aspect, in some implementations of the seventh aspect, the communication unit is specifically configured to:

The control information is sent K times on the second BWP, and the control information is sent on the first BWP N-K times, wherein at least one of the K times of control information includes the first indication information, and K is less than or equal to N positive integer.

With reference to the seventh aspect, in some implementations of the seventh aspect, the communication unit is specifically configured to:

The control information is sent N times to the second terminal device on a third BWP, where the third BWP is one of at least two BWPs that have been activated between the first terminal device and the second terminal device.

With reference to the seventh aspect, in some implementations of the seventh aspect, the communication unit is further configured to: send data information to the second terminal device X times, where X is a positive integer.

With reference to the seventh aspect, in some implementations of the seventh aspect, the communication unit is specifically configured to: send data information Y times on the second BWP, send data information X-Y times on the first BWP, and is a positive integer less than or equal to X.

With reference to the seventh aspect, in some implementations of the seventh aspect, the K is determined according to a first time M, and the first time M is a processing delay value of the first terminal device or the The timing value configured by the network device to the first terminal device.

With reference to the seventh aspect, in some implementations of the seventh aspect, the Y is determined according to a second time L, and the second time L is a processing delay value of the first terminal device or the The timing value configured by the network device to the first terminal device.

With reference to the seventh aspect, in some implementations of the seventh aspect, the K-th control information includes resource information of the Y-th first data packet; the K-th control information or the N-K-th control information includes all Describe the resource information of the first data packet X-Y times.

With reference to the seventh aspect, in some implementations of the seventh aspect, the first indication information is an identifier of the first bandwidth portion.

With reference to the seventh aspect, in some implementations of the seventh aspect, the control information is carried in physical layer signaling, or MAC layer signaling, or RRC layer signaling.

In an eighth aspect, a device for sending control information is provided, comprising:

a processing unit for determining the first bandwidth part BWP;

A communication unit, configured to send N times of control information to the second terminal device, at least one of the N times of control information is sent on the first resource, and the N is a positive integer greater than or equal to 1, wherein , the first resource is determined according to the first BWP.

With reference to the eighth aspect, in some implementations of the eighth aspect, at least one control information in the N times of control information is sent on the first resource and is also used to deactivate the second BWP, and the first resource is one of the first subchannel on the second BWP, the first resource pool on the second BWP, or the first dedicated resource on the second BWP, and the communication unit is specifically used for:

Sending control information N times to the second terminal device, at least one control information in the N times of control information is sent on the first subchannel, or the first resource pool, or the first dedicated resource , the first subchannel, or the first resource pool, or the first dedicated resource is determined according to the first BWP.

With reference to the eighth aspect, in some implementations of the eighth aspect, the communication unit is specifically configured to:

sending control information K times on the second BWP, and sending control information on the first BWP N-K times;

At least one of the N times of control information is sent on the first subchannel, or the first resource pool, or the first dedicated resource, including:

At least one control information in the K times of control information is sent on the first subchannel, or the first resource pool, or the first dedicated resource.

With reference to the eighth aspect, in some implementations of the eighth aspect, the first resource is the second subchannel on the third BWP, the second resource pool on the third BWP, or the second dedicated resource on the third BWP One of the resources, the third BWP is one of at least two BWPs that have been activated between the first terminal device and the second terminal device, and the communication unit is specifically used for:

Sending control information N times to the second terminal device on the third BWP, at least one control information in the N times of control information is in the second subchannel, or the second resource pool, or the Sent on the second dedicated resource, the second subchannel, or the second resource pool, or the second dedicated resource is determined according to the first BWP.

A ninth aspect provides an apparatus for receiving control information, comprising:

A communication unit, configured to receive N times of control information sent by a first terminal device, wherein at least one of the N times of control information includes first indication information, wherein the first indication information is used to activate the first Bandwidth part BWP, the N is a positive integer greater than or equal to 1;

and a processing unit, configured to activate the first BWP according to the first indication information.

It should be understood that the apparatus for receiving control information in this embodiment of the present application may be a second terminal device.

With reference to the ninth aspect, in some implementations of the ninth aspect, at least one of the N times of control information further includes second indication information, where the second indication information is used to deactivate the second BWP.

With reference to the ninth aspect, in some implementations of the ninth aspect, the communication unit is specifically configured to: receive control information K times at the second BWP, and receive control information N-K times at the first BWP;

At least one of the N times of control information includes first indication information, including:

At least one of the K times of control information includes the first indication information, and K is a positive integer less than or equal to N.

With reference to the ninth aspect, in some implementations of the ninth aspect, the communication unit is specifically configured to: receive the control information N times at a third BWP, where the third BWP is the first terminal device and the one of the at least two BWPs that have been activated between the second terminal devices.

With reference to the ninth aspect, in some implementation manners of the ninth aspect, the control information further includes resource information of the first data packet, and the communication unit is further configured to: receive X times of all data sent by the first terminal device. In the first data packet, X is a positive integer.

With reference to the ninth aspect, in some implementations of the ninth aspect, the communication unit is specifically configured to: receive the first data packet Y times on the second BWP, and receive the first data packet X-Y times on the first BWP In the first data packet, Y is a positive integer less than or equal to X.

With reference to the ninth aspect, in some implementations of the ninth aspect, the K is determined according to a first time M, and the first time M is a processing delay value of the first terminal device or the The timing value configured by the network device to the first terminal device.

With reference to the ninth aspect, in some implementations of the ninth aspect, the Y is determined according to a second time L, and the second time L is the processing delay value of the first terminal device or the The timing value configured by the network device to the first terminal device.

With reference to the ninth aspect, in some implementation manners of the ninth aspect, the K times of control information includes the resource information of the first data packet of the Y times; the K times of control information or the N-K times of control information Including the resource information of the first data packet of the X-Y times.

With reference to the ninth aspect, in some implementations of the ninth aspect, the first indication information is an identifier of the first bandwidth portion.

A tenth aspect provides an apparatus for receiving control information, comprising:

a communication unit, configured to receive N times of control information sent by the first terminal device, at least one of the N times of control information is received on the first resource, and the N is a positive integer greater than or equal to 1;

and a processing unit, configured to determine to activate the first bandwidth part BWP according to the first resource.

It should be understood that the apparatus for receiving control information in this embodiment of the present application may be a second terminal device.

With reference to the tenth aspect, in some implementation manners of the tenth aspect, at least one control information in the N times of control information is sent on the first resource and is also used to deactivate the second BWP, and the first resource is one of the first subchannel on the second BWP, the first resource pool on the second BWP, or the first dedicated resource on the second BWP, and the communication unit is specifically used for:

Receive the N times of control information sent by the first terminal device, where at least one of the N times of control information is in the first subchannel, or the first resource pool, or the first If received on a dedicated resource, the first BWP is determined according to the first subchannel, or the first resource pool, or the first dedicated resource.

With reference to the tenth aspect, in some implementation manners of the tenth aspect, the communication unit is specifically configured to: receive, on the second BWP, the control information sent by the first terminal device K times, and in the first Receive control information N-K times on BWP;

At least one of the N times of control information is received on the first subchannel, or the first resource pool, or the first dedicated resource, including:

At least one control information in the K times of control information is received on the first subchannel, or the first resource pool, or the first dedicated resource.

With reference to the tenth aspect, in some implementations of the tenth aspect, the first resource is the second subchannel on the third BWP, the second resource pool on the third BWP, or the second dedicated resource on the third BWP one of the resources, the third BWP is one of at least two BWPs that have been activated between the first terminal device and the second terminal device, and the communication unit is specifically configured to: in the third BWP Receive N times of control information sent by the first terminal device, at least one of the N times of control information is in the second subchannel, or the second resource pool, or the second dedicated If received on the resource, the first BWP is determined according to the second subchannel, or the second resource pool, or the second dedicated resource.

An eleventh aspect provides an apparatus for sending control information, comprising:

a processing unit, configured to configure at least one bandwidth part BWP, the at least one BWP includes a first BWP;

A communication unit, configured to send first indication information to the first terminal device and the second terminal device, where the first indication information is used to activate the first BWP.

It should be understood that the apparatus for sending control information in this embodiment of the present application may be a network device.

With reference to the eleventh aspect, in some implementations of the eleventh aspect, the first indication information is carried in a MIB message; or, the first indication information is carried in a SIB message; or, the first indication information carried in RRC signaling; or, the first indication information is carried in MAC signaling; or, the first indication information is carried in DCI signaling.

With reference to the eleventh aspect, in some implementations of the eleventh aspect, the first indication information further includes an identifier of the first terminal device, an identifier of the second terminal device, an identifier of a pair of terminal devices, and at least one of the identifiers of terminal equipment groups, wherein the terminal equipment pair and the terminal equipment group include the first terminal equipment and the second terminal equipment.

With reference to the eleventh aspect, in some implementations of the eleventh aspect, the communication unit is further configured to: send configuration information to the first terminal device and the second terminal device, where the configuration information includes all information of at least one bandwidth portion configured by the apparatus to the first terminal device.

With reference to the eleventh aspect, in some implementations of the eleventh aspect, the configuration information includes an identifier of the first terminal device, an identifier of the second terminal device, an identifier of a pair of terminal devices, and an identifier of a terminal device at least one of group identifiers, wherein the terminal device pair and the terminal device group include the first terminal device and the second terminal device.

A twelfth aspect provides an apparatus for receiving control information, comprising:

a communication unit, configured to receive first indication information sent by the network device, wherein the first indication information is used to activate the first bandwidth part BWP;

A processing unit, configured to activate the first BWP according to the first indication information.

It should be understood that the apparatus for receiving control information in this embodiment of the present application may be a first terminal device or a second terminal device.

In the embodiment of the present application, the second terminal device may obtain the first indication information sent by the network device, so as to determine the handover bandwidth part of the first terminal device, so as to avoid interruption of the side link between the first terminal and the receiving terminal, Improve the communication efficiency of the side link.

With reference to the twelfth aspect, in some implementation manners of the twelfth aspect, the first indication information is carried in a MIB message; or, the first indication information is carried in a SIB message; or, the first indication information carried in RRC signaling; or, the first indication information is carried in MAC signaling; or, the first indication information is carried in DCI signaling.

With reference to the twelfth aspect, in some implementations of the twelfth aspect, the first indication information includes at least one of an identifier of the second terminal device, an identifier of a pair of terminal devices, and an identifier of a terminal device group, The second terminal device is included in the terminal device pair and the terminal device group.

With reference to the twelfth aspect, in some implementations of the twelfth aspect, the communication unit is further configured to:

The configuration information sent by the network device is received, where the configuration information includes information of at least one bandwidth part configured by the apparatus to the first terminal device.

With reference to the twelfth aspect, in some implementations of the twelfth aspect, the configuration information further includes at least one of an identifier of the second terminal device, an identifier of a pair of terminal devices, and an identifier of a terminal device group, wherein , the second terminal device is included in the terminal device pair and the terminal device group.

A thirteenth aspect provides a device for sending control information, the device comprising: a memory, a processor, a transceiver, and a computer program stored in the memory and running on the processor, characterized in that the processor When the computer program is executed, the method in the above-mentioned first aspect or any possible implementation manner of the first aspect is performed.

A fourteenth aspect provides a device for sending control information, the device comprising: a memory, a processor, a transceiver, and a computer program stored in the memory and running on the processor, characterized in that the processor The method of the second aspect or any possible implementation of the second aspect is performed when the computer program is executed.

A fifteenth aspect provides an apparatus for receiving control information, the apparatus comprising: a memory, a processor, a transceiver, and a computer program stored in the memory and executable on the processor, characterized in that the processor When the computer program is executed, the method in the above third aspect or any possible implementation manner of the third aspect is performed.

A sixteenth aspect provides a device for receiving control information, the device comprising: a memory, a processor, a transceiver, and a computer program stored in the memory and running on the processor, characterized in that the processor The method in the fourth aspect or any possible implementation manner of the fourth aspect is performed when the computer program is executed.

A seventeenth aspect provides a device for sending control information, the device comprising: a memory, a processor, a transceiver, and a computer program stored in the memory and running on the processor, characterized in that the processor When the computer program is executed, the transmission method in the fifth aspect or any possible implementation manner of the fifth aspect is executed.

An eighteenth aspect provides an apparatus for receiving control information, the apparatus comprising: a memory, a processor, a transceiver, and a computer program stored in the memory and executable on the processor, characterized in that the processor When the computer program is executed, the method in the sixth aspect or any possible implementation manner of the sixth aspect is performed.

In a nineteenth aspect, the present application provides a computer-readable medium for storing a computer program, the computer program comprising instructions for performing the method in the first aspect or any possible implementation manner of the first aspect.

In a twentieth aspect, the present application provides a computer-readable medium for storing a computer program, the computer program comprising instructions for performing the method in the second aspect or any possible implementation manner of the second aspect.

In a twenty-first aspect, the present application provides a computer-readable medium for storing a computer program, the computer program comprising instructions for performing the method in the third aspect or any possible implementation manner of the third aspect.

In a twenty-second aspect, the present application provides a computer-readable medium for storing a computer program, the computer program comprising instructions for performing the method in the fourth aspect or any possible implementation manner of the fourth aspect.

In a twenty-third aspect, the present application provides a computer-readable medium for storing a computer program, the computer program comprising instructions for performing the method in the fifth aspect or any possible implementation manner of the fifth aspect.

In a twenty-fourth aspect, the present application provides a computer-readable medium for storing a computer program, the computer program comprising instructions for performing the method in the sixth aspect or any possible implementation manner of the sixth aspect.

In a twenty-fifth aspect, the present application provides a computer program product comprising instructions that, when run on a computer, cause the computer to perform the method of the first aspect or any possible implementation of the first aspect.

In a twenty-sixth aspect, the present application provides a computer program product comprising instructions that, when run on a computer, cause the computer to perform the method of the second aspect or any possible implementation of the second aspect.

In a twenty-seventh aspect, the present application provides a computer program product containing instructions, which, when run on a computer, cause the computer to perform the method of the third aspect or any possible implementation of the third aspect.

In a twenty-eighth aspect, the present application provides a computer program product comprising instructions that, when run on a computer, cause the computer to perform the method of the fourth aspect or any possible implementation of the fourth aspect.

In a twenty-ninth aspect, the present application provides a computer program product containing instructions, which, when run on a computer, cause the computer to perform the method of the fifth aspect or any possible implementation of the fifth aspect.

In a thirtieth aspect, the present application provides a computer program product comprising instructions that, when run on a computer, cause the computer to perform the method of the sixth aspect or any possible implementation of the sixth aspect.

According to a thirty-first aspect, the present application provides a communication chip, in which instructions are stored, when running on a network device or a terminal device, the network device or the terminal device enables the network device or the terminal device to execute the methods described in the above aspects.

Description of drawings

FIG. 1 is a schematic diagram of an application scenario of an embodiment of the present application.

FIG. 2 is a schematic diagram of an application scenario according to inter-device communication.

3 is a schematic diagram of a D2D technique according to inter-device communication.

FIG. 4 is a schematic diagram of an application scenario according to the V2X technology.

FIG. 5 is a schematic diagram of assigning SA and data with respective resource pools according to scheduling.

FIG. 6 is a schematic diagram of assigning SAs and data sharing resource pools according to scheduling.

FIG. 7 is an interactive schematic diagram of a method for sending control information according to an embodiment of the present application.

FIG. 8 is a schematic block diagram of an apparatus for sending control information according to an embodiment of the present application.

FIG. 9 is a schematic block diagram of an apparatus for receiving control information provided by an embodiment of the present application.

FIG. 10 is a schematic block diagram of an apparatus for sending control information according to an embodiment of the present application.

FIG. 11 is a schematic block diagram of an apparatus provided by an embodiment of the present application.

Detailed ways

The technical solutions in the present application will be described below with reference to the accompanying drawings.

The technical solutions of the embodiments of the present application can be applied to various communication systems, for example, a global system for mobile communications (GSM) system, a code division multiple access (CDMA) system, a wideband code division multiple access (wideband) system code division multiple access (WCDMA) system, general packet radio service (GPRS), long term evolution (long termevolution, LTE) system, LTE frequency division duplex (FDD) system, LTE time division duplex (time division duplex, TDD), universal mobile telecommunication system (UMTS), worldwide interoperability for microwave access (WiMAX) communication system, future fifth generation (5th generation, 5G) system or new Wireless (new radio, NR) and so on.

The terminal device in this embodiment of the present application may refer to a user equipment, an access terminal, a subscriber unit, a subscriber station, a mobile station, a mobile station, a remote station, a remote terminal, a mobile device, a user terminal, a terminal, a wireless communication device, a user agent or user device. The terminal device may also be a cellular phone, a cordless phone, a session initiation protocol (SIP) phone, a wireless local loop (WLL) station, a personal digital assistant (PDA), a wireless communication function handheld devices, computing devices or other processing devices connected to wireless modems, in-vehicle devices, wearable devices, terminal devices in future 5G networks or terminals in future evolved public land mobile networks (PLMN) equipment, etc., which are not limited in this embodiment of the present application.

The network device in this embodiment of the present application may be a device for communicating with a terminal device, and the network device may be a global system for mobile communications (GSM) system or code division multiple access (CDMA) The base transceiver station (BTS) in the LTE system can also be the base station (NodeB, NB) in the wideband code division multiple access (WCDMA) system, or the evolved base station (evolved) in the LTE system. NodeB, eNB or eNodeB), it can also be a wireless controller in the cloud radio access network (cloud radio access network, CRAN) scenario, or the network device can be a relay station, an access point, an in-vehicle device, a wearable device, and future The network equipment in the 5G network or the network equipment in the future evolved PLMN network, etc., are not limited in the embodiments of the present application.

In this embodiment of the present application, the terminal device or the network device includes a hardware layer, an operating system layer running on the hardware layer, and an application layer running on the operating system layer. The hardware layer includes hardware such as a central processing unit (CPU), a memory management unit (MMU), and memory (also called main memory). The operating system may be any one or more computer operating systems that implement business processing through processes, such as a Linux operating system, a Unix operating system, an Android operating system, an iOS operating system, or a Windows operating system. The application layer includes applications such as browsers, address books, word processing software, and instant messaging software. In addition, the embodiments of the present application do not specifically limit the specific structure of the execution body of the methods provided by the embodiments of the present application, as long as the program that records the codes of the methods provided by the embodiments of the present application can be executed to provide the methods provided by the embodiments of the present application. For example, the execution subject of the method provided by the embodiment of the present application may be a terminal device or a network device, or a functional module in the terminal device or network device that can call and execute a program.

Additionally, various aspects or features of the present application may be implemented as a method, apparatus, or article of manufacture using standard programming and/or engineering techniques. The term "article of manufacture" as used in this application encompasses a computer program accessible from any computer readable device, carrier or medium. For example, computer readable media may include, but are not limited to: magnetic storage devices (eg, hard disks, floppy disks, or magnetic tapes, etc.), optical disks (eg, compact discs (CDs), digital versatile discs (DVDs) etc.), smart cards and flash memory devices (eg, erasable programmable read-only memory (EPROM), cards, stick or key drives, etc.). Additionally, various storage media described herein can represent one or more devices and/or other machine-readable media for storing information. The term "machine-readable medium" may include, but is not limited to, wireless channels and various other media capable of storing, containing, and/or carrying instructions and/or data.

For ease of understanding, the relevant terms involved in this article are first introduced below.

1. Bandwidth part (BWP)

The 3rd generation partnership project (3GPP) standard organization is currently formulating a protocol standard for a 5th generation cellular mobile communication system (5th Generation, 5G), also known as new radio (NR). Compared with the long term evolution (long term evolution, LTE) system, the NR system has a feature that different bandwidths can be configured on the network side and the terminal side. The terminal equipment can configure its own maximum working bandwidth according to its own business requirements and manufacturing costs. For example, the working bandwidth of low-cost and low-speed terminal equipment may be only 5MHz, while the working bandwidth of high-speed and high-performance terminal equipment may reach 100MHz. If a carrier bandwidth of a cell is set according to the operating bandwidth of a low-cost terminal device (for example, set to 5MHz to 10MHz), a high-performance terminal device can obtain a higher rate by adopting carrier aggregation. It will inevitably increase the control signaling overhead and processing complexity; if the carrier bandwidth of the cell is set according to the working bandwidth of the high-speed and high-performance terminal equipment (for example, 100MHz), the low-cost terminal equipment must be equipped with radio frequency and baseband suitable for large bandwidth. Only devices can access the cell, which undoubtedly increases the cost. Therefore, NR introduces the concept of BWP.

BWP is the fractional bandwidth within the carrier bandwidth. A BWP can be a segment of contiguous frequency resources on a carrier. The network can configure multiple BWPs for a terminal, and the bandwidths of the multiple BWPs can be different. The network can also configure BWPs with different bandwidth sizes for different terminal devices. The network will send an activation command to activate one of the multiple configuration BWPs. When a BWP is configured and activated, the BWP is called an active BWP (active BWP). The active BWP includes an active DL BWP and an active UL BWP. The data and control information sent by the terminal device in the activated UL BWP, and the data and control information received in the activated DL BWP. In a possible implementation manner, one terminal device supports only one activated BWP, and the terminal device only performs data transmission on one BWP at any time. The BWP allocated to the terminal device during initial access is called an initial BWP (initial BWP). The identifier of the initial BWP, for example, the value is 0.

In NR, the bandwidth of one carrier of the base station is wider than that of the LTE carrier. For example, the carrier bandwidth of NR can be 100M, and the radio frequency capabilities of different terminals are different, and the maximum bandwidth that can be supported is different. Therefore, the bandwidth part is introduced. BWP) concept. A BWP is a set of contiguous RB resources on a carrier. Different BWPs may occupy partially overlapping frequency domain resources with different bandwidths, or may be bandwidth resources with different numerologies, which may not overlap each other in frequency domain. In NR Rel-15, a serving cell can be configured with up to 4 BWPs, for example, 4 BWPs for frequency division duplexing (FDD) uplink and downlink, and 4 time division duplexing (TDD) uplinks and downlinks in total. BWP pairs. Each serving cell can only activate one BWP at the same time, and the terminal transmits and receives data on the activated BWP.

Although a serving cell can be configured with up to 4 BWPs, each BWP can be configured with a different numericolgy. However, because each serving cell can only activate one BWP at the same time, and the PDCCH can only be sent on the activated BWP.

2. Blind inspection

The DCI that schedules different data transmissions may be scrambled with different radio network temporary identifiers (RNTIs). For example, the RNTIs may include cell-RNTIs (C-RNTIs), random access-RNTIs , RA-RNTI), paging identifier (paging-RNTI, P-RNTI), etc., where C-RNTI can be used to scramble the DCI of the scheduling user data, and RA-RNTI can be used to send the scheduling network equipment to the terminal The random access response message of the device is scrambled, and the P-RNTI can be used to scramble the paging message.

Taking the C-RNTI as an example, the physical downlink control channel (PDCCH) of different users can be distinguished by their corresponding C-RNTI, that is, the cyclic redundancy check (CRC) of the DCI is determined by the C-RNTI. cover up. The terminal device cannot obtain the format of the currently sent DCI, and cannot obtain the candidate PDCCH on which the DCI is sent. However, the terminal device can determine the type of information that needs to be received currently, and for different types of information to be received, the terminal device uses the corresponding RNTI and the information on the configured candidate PDCCH to perform CRC check. If the CRC check is successful, the terminal device determines that the DCI information needs to be received, so as to determine the corresponding DCI format, so as to further parse out the content of the DCI.

In a possible implementation manner, the calculation rule for the number of blind checks is as follows:

(1) When the DCI lengths on the candidate PDCCH are different, the blind detection times are calculated separately;

(2) For DCI on the candidate PDCCH composed of different control channel elements (control channel elements, CCEs), the blind detection times are calculated separately;

(3) The candidate PDCCHs come from DCIs of different control resource sets (control resource sets, CORESETs), and the blind detection times are calculated separately; where CORESET represents a time-frequency resource set used to carry control information.

(4) When the DCI lengths on the candidate PDCCHs in the same CORESET and composed of the same CCE set are the same, one blind detection is counted.

3. DCI format (DCI format)

For data transmission, NR currently supports multiple formats of DCI, namely DCI format 0_0, DCI format0_1, DCI format 1_0, DCI format 1_1, DCI format 2_0, DCI format 2_1, DCI format 2_2, DCI format 2_3, etc.

According to uplink and downlink, the above-mentioned first four formats of DCI can be divided into two categories: DCI for scheduling physical uplink shared channel (PUSCH) and DCI for scheduling physical downlink shared channel (PDSCH) ), where DCI format 0_0 and DCI format 0_1 are DCIs used for scheduling PUSCH, and DCI format 1_0 and DCI format 1_1 are DCIs used for scheduling PDSCH.

According to specific functions, the above-mentioned first four formats of DCI can also be divided into two categories: fallback DCI (fallback DCI) and non-fallback DCI (non-fallback DCI). Among them, DCI format 0_0 and DCI format 1_0 are fallback DCI, DCI format 0_1 and DCI format 1_1 are non-fallback DCI. It should be understood that the content of the fields included in the DCI of different formats and the corresponding number of bits of the DCI are different.

4. 5G NR (new rat, NR)

The 3rd generation partnership project (3GPP) long term evolution-advanced (LTE-A) Rel-10/11/12/13/14/15 version is long term evolution (long term evolution, LTE) Rel-8/9 version enhancement, the LTE-A system has higher bandwidth requirements than the LTE system, and supports a peak data rate of up to 1G/s downlink and 500M/s uplink.

5G is the fifth generation of mobile communication, and 5G needs to have higher performance than 4G. 5G NRRel-15 defines a new air interface access technology to support user experience rates of 0.1 to 1 Gbps, a density of one million connections per square kilometer, millisecond-level end-to-end latency, and tens of Tbps per square kilometer. Traffic density, mobility over 500Km per hour and peak rates of tens of Gbps. Among them, user experience rate, connection density and delay are the three most basic performance indicators of 5G. At the same time, 5G also needs to greatly improve the efficiency of network deployment and operation. Compared with 4G, the spectrum efficiency is increased by 5 to 15 times, and the energy efficiency and cost efficiency are increased by more than 100 times.

The three major application scenarios and requirements of 5G include:

Enhanced mobile broadband (eMBB);

Massive machine-type-communications (mMTC);

Ultra reliable and low latency communications (Ultra reliable and low latency communications, URLLC).

The scenarios corresponding to URLLC applications include unmanned driving, industrial control, etc., which require low latency and high reliability. The specific requirements for low latency are end-to-end 0.5ms delay, and the air interface information exchange delay is 1ms back and forth. The specific requirements for high reliability are The block error rate BLER reaches 10^(-5), that is, the proportion of correctly received data packets reaches 99.999%.

In 5G NR, various subcarrier spacings are introduced, and different carriers can have different subcarrier spacings. The baseline is 15kHz, can be 15kHz*2n, n is an integer, from 3.75, 7.5 to 480kHz, up to 8 kinds. Correspondingly, there are various symbol lengths and time slot lengths, as shown in Table 1 below:

Table 1

In the time domain, in 5G NR, a time slot can be composed of at least one of downlink transmission, guard interval GP, uplink transmission, etc.; such a time slot composition is called a different time slot format SFI (Slot Format Indicator), at most There are 256 possible.

In the frequency domain, since the 5G NR single-carrier bandwidth can reach 400MHz, a bandwidth part (BWP) is defined in one carrier. The base station can configure multiple configurations DL/ULBWP for the UE through high-level signaling RRC. Layer signaling DCI activates one of the DL/UL BWPs for the UE (one for each of the uplink and downlink), so the UE has multiple DL/UL BWPs configured in one carrier but only one DL/UL BWP is activated. When the BWP is activated, it needs to be switched , the base station switches the active BWP from BWP1 to BWP2 through DCI. The latest conference conclusion is that the downlink scheduling signaling DCI can only switch the downlink activated BWP. After receiving the PDCCH, the UE switches to the new BWP to receive PDSCH; the uplink scheduling signaling can only switch the uplink activated BWP. After receiving the PDCCH, the UE Switch to the new BWP to send PUSCH.

5. Communication between devices (device to device, D2D)

In order to improve the spectrum utilization rate and utilize the radio frequency capability of the existing terminal to the maximum extent, the D2D communication link (side link, SL) considers the reuse of the spectrum resources of the existing mobile communication network. In order not to interfere with the terminals of the existing network, D2D communication does not use the LTE-A downlink (downlink, DL), that is, the link spectrum resources from the eNB to the UE, but only reuses the uplink (uplink, UL) of the LTE-A system, that is, the UE. Link spectrum resources to the eNB. Because the anti-interference ability of the base station is much better than that of the ordinary UE. The D2D device is more likely to time-division multiplex the uplink spectrum resources, so that it does not need to support simultaneous transmission and reception, and only needs to either transmit or receive at a moment.

In Rel-12/13 version, D2D scene can be divided into 3 kinds of devices with network coverage, partial network coverage and no network coverage. In the scenario with network coverage, the D2D device is within the coverage of the base station. In some network coverage scenarios, some D2D devices are within the coverage of the base station, and another part of the D2D device is not covered by the base station. In the scenario without network coverage, all D2D devices are not in the coverage area of the base station. If the UE can hear the signal of the base station, it is a UE within the network coverage. If the UE can hear the signal of the UE within the network coverage, the UE is partially covered by the network. If the UE cannot receive the first two signals, it is a UE outside the network coverage. As shown in FIG. 2 , UE1 belongs to UEs within network coverage, UE2 belongs to partial network coverage UEs, and UE3, UE4 and UE5 belong to out-of-network UEs.

D2D communication is divided into D2D device discovery and D2D device communication. D2D device discovery only sends discovery signal (on PSDCH), D2D device communication sends scheduling assignment (ie SA, which has different SCI formats and is carried on PSCCH) and data (carried on PSSCH), relative to the uplink (UL) and downlink (DL) in LTE, the D2D communication link is called a sidelink (SL).

From the perspective of the sending user (sending device), there are now two modes of resource allocation for D2D device communication.

Mode 1: It is a centralized control method. D2D resources are allocated by a central control device such as a base station or a relay station. The resources are allocated to the sending UE through scheduling. The centralized control resource allocation is mainly for network coverage. Scenes.

Mode 2 (Mode 2): It is a distributed resource multiplexing method based on contention, and the sending UE obtains the sending resource from the resource pool in a competition manner. In a scenario with network coverage, the resource pool is a whole block of resources allocated by the base station, and all D2D users compete for small pieces of resources in this whole block of resources. In a scenario without network coverage, the resource pool is where D2D users can obtain a predefined piece of system bandwidth, and all D2D users compete for resources under the predefined resources.

Similar to device communication, there are two types of resource allocation for device discovery.

Type 1 (Type 1): It is a contention-based distributed resource multiplexing method, and the sending UE obtains the sending resources from the resource pool in a competition manner. In a scenario with network coverage, the resource pool is a whole block of resources allocated by the base station, and all D2D users compete for small pieces of resources in this whole block of resources. In a scenario without network coverage, the resource pool is where D2D users can obtain a predefined piece of system bandwidth, and all D2D users compete for resources under the predefined resources.

Type 2: It is a centralized control method. D2D resources are allocated by a central control device such as a base station or a relay station. The resources are allocated to the sending UE through scheduling. The centralized control resource allocation is mainly for network coverage. Scenes.

It should be understood that for the competition-based resource allocation methods of Mode2 and Type1, due to the lack of coordination by the central controller, different UEs may compete for the same resources, resulting in conflicts; when the number of UEs is large, the probability of such conflicts is very high. high.

For example, for D2D device communication, the sending device first sends a scheduling assignment (SA), (repeatedly sent twice), such as the side link control information SCI, which carries the resource information of the data packet, and then sends the data packet (repeatedly sent 4 times), Figure 3 shows the schematic diagram of Mode1, Mode2 is similar, except that there is no base station, and the resources are randomly selected by the Tx UE (sending UE); the receiving device blindly checks the SA first, if the SA is received correctly and the ID in it and the receiver ID list If at least one of the IDs matches, the data packet is received according to the resource information of the data packet carried in it.

Currently, SA has only one format, SCI format 0. The fields included in SCI format 0 are as shown in Table 2 below.

Table 2

fields number of bits descriptions frequency hopping 1 Whether to use frequency hopping, frequency hopping is fixed in the specification resource block allocation 5-13 UL 0 type resource allocation can be reused Time Domain Resource Pattern 7 bitmap modulation coding scheme 5 Except 64QAM timing advance 11 Data reception timing adjustment identity, identifier 8 destination identifier total 37-45

6. V2X (vehicle-to-everything)

In Rel-14/15/16 versions, V2X as a major application of D2D technology was successfully established. V2X will optimize the specific application requirements of V2X based on the existing D2D technology. It is necessary to further reduce the access delay of V2X devices and solve the problem of resource conflicts.

V2X specifically includes three application requirements: V2V (Internet of Vehicles), V2P (Vehicle-Pedestrian Communication), and V2I/N (Vehicle-Infrastructure Communication/Network, Base Station Communication), as shown in Figure 4. V2V refers to LTE-based vehicle-to-vehicle communication; V2P refers to LTE-based communication between vehicles and people (including pedestrians, cyclists, drivers, or passengers); V2I refers to LTE-based vehicles and roadside devices (RSU) communication, there is also a V2N that can be included in V2I, V2N refers to LTE-based communication between vehicles and base stations/networks. As shown in Figure 4.

Roadside Units (RSUs) can include two types: terminal-type RSUs, which are in a non-mobile state because they are located on the roadside, and do not need to consider mobility; base station-type RSUs, which can be used for The vehicle provides timing synchronization and resource scheduling.

For V2X communication, in order to ensure the delay requirement, the sender may send SA and data at the same time in a subframe (repeatedly sent twice), for example, the side link control information SCI and data packets, as shown in Figure 5; the receiver First blindly check the SA, and at the same time need to cache the data in the same subframe, because it is possible that the data scheduled by the SA is in the same subframe, if the SA is received correctly and the ID in it matches the receiver, then the data carried in it will be based on the correlation of the data. The information determines whether to demodulate/decode buffered data (same subframe) or receive subsequent data (different subframe).

In order to reduce the peak-to-average power ratio (PAPR), for a UE, the resources where the SA and data reside are preferably continuous. Therefore, another method is that the SA and the data share the resource pool, and the SA can be placed continuously with the data, as shown in Figure 6. Compared with Fig. 5, although the method of the prior art 1 reduces the PAPR, it introduces a new problem: SA may appear at any position, which will reduce the probability of SA detection at the receiving end, increase the number of blind detections, and increase the receiver's The demodulation/decoding workload increases the power consumption of the receiver and increases the complexity of the receiver.

7. Sub-channel

A sub-channel includes several resource blocks (resource blocks, RBs) that are continuous in the frequency domain, and the size of the sub-channel can be configured by a network device or pre-configured in advance. Any sub-channel can be used to transmit V2X data information. In a sub-channel, starting from the lowest RB sequence number (lowest index of the RB), a total of two consecutive RBs are PSCCH channels, which are used to transmit V2X control information, and the remaining consecutive RBs are PSSCH channels, which are used to transmit V2X control information. Transmission of data information (data). In the time domain, a subframe (subframe) or a time slot (slot) is used as the basic unit. Further, in LTE V2X, SA and Data are in the form of frequency division multiplexing (frequency division multiplexing, FDM) in the frequency domain, and together occupy the entire subframe in the time domain. It should be understood that multiple sub-channels may be included on one BWP.

From the perspective of the entire V2X system, the transmission resources of the entire V2X are divided into several sub-channels. For the sender and receiver, the control information and data resources sent and received are relatively fixed. The receiving end receives the SA at a specific location, and further decodes the data according to the control information carried in the SA.

First, for ease of understanding, the following briefly introduces the application environment of the embodiment of the present application with reference to FIG. 1 . FIG. 1 is a schematic diagram of a communication system used in an embodiment of the present application. As shown in FIG. 1, the communication system 100 includes a network device 102, and the network device 102 may include a plurality of antenna groups. Each antenna group may include one or more antennas, eg, one antenna group may include antennas 104 and 106, another antenna group may include antennas 108 and 110, and additional groups may include antennas 112 and 114. 2 antennas are shown for each antenna group in Figure 1, however more or fewer antennas may be used for each group. The network device 102 may additionally include a transmitter chain and a receiver chain, each of which may include various components related to signal transmission and reception, such as processors, modulators, multiplexers, demultiplexers, as understood by those of ordinary skill in the art. modulators, demultiplexers, or antennas, etc.

Network device 102 may communicate with multiple end devices, eg, network device 102 may communicate with end device 116 and end device 122 . It will be appreciated, however, that network device 102 may communicate with any number of end devices similar to end devices 116 or 122 . Terminal devices 116 and 122 may be, for example, cellular telephones, smart phones, laptop computers, handheld communication devices, handheld computing devices, satellite radios, global positioning systems, PDAs, and/or any other suitable device for communicating over wireless communication system 100 . equipment.

As shown in FIG. 1 , end device 116 communicates with antennas 112 and 114 that transmit information to end device 116 over forward link 118 and receive information from end device 116 over reverse link 120 . In addition, terminal device 122 communicates with antennas 104 and 106 , which transmit information to terminal device 122 via forward link 124 and receive information from terminal device 122 via reverse link 126 .

For example, in a frequency division duplex FDD system, for example, forward link 118 may utilize a different frequency band than that used by reverse link 120, and forward link 124 may utilize a different frequency band than that used by reverse link 126, for example .

As another example, in time division duplex TDD systems and full duplex systems, forward link 118 and reverse link 120 may use a common frequency band, and forward link 124 and reverse link 126 may use a common frequency band. frequency band.

Each group of antennas and/or areas designed to communicate is referred to as a sector of network device 102 . For example, an antenna group may be designed to communicate with terminal devices in sectors of the network device 102 coverage area. During communication of network device 102 with terminal devices 116 and 122 over forward links 118 and 124, respectively, the transmit antenna of network device 102 may utilize beamforming to improve the signal-to-noise ratio of forward links 118 and 124. Furthermore, when the network device 102 uses beamforming to transmit to the terminal devices 116 and 122 randomly dispersed in the associated coverage area, the Mobile devices will experience less interference.

At a given time, network device 102, end device 116, or end device 122 may be a wireless communication transmitter and/or a wireless communication receiver. When transmitting data, the wireless communication transmitting device may encode the data for transmission. Specifically, the wireless communication transmitting device may acquire a certain number of data bits to be transmitted to the wireless communication receiving device through the channel, for example, the wireless communication transmitting device may generate, receive from other communication devices, or store in memory, etc. to be transmitted through the channel A certain number of data bits to a wireless communication receiving device. Such data bits may be contained in a transport block of data or in multiple transport blocks, which may be segmented to generate multiple code blocks.

In addition, the communication system 100 may be a public land mobile network PLMN network or a device-to-device (D2D) network or a machine-to-machine (M2M) network or other networks, and FIG. 1 is only exemplified for ease of understanding To simplify the schematic diagram, the network may also include other network devices, which are not shown in FIG. 1 . The terminal device 116 or the terminal device 122 may be a D2D terminal device, an M2M terminal device or a V2X terminal device.

The embodiments of the present application will be described in detail below with reference to specific examples. It should be noted that this is only to help those skilled in the art to better understand the embodiments of the present application, rather than limiting the scope of the embodiments of the present application.

It should be understood that, in the various embodiments of the present application, "first", "second", etc. are only intended to refer to different objects, and do not mean that there are other limitations on the referred objects.

FIG. 7 is an interactive schematic diagram of a method for sending control information according to an embodiment of the present application. Wherein, the method of FIG. 7 can be applied to the network architecture of FIG. 1 or FIG. 2 . The method of Figure 7 includes:

S210. The first terminal device determines the first bandwidth part BWP.

It should be noted that determining the first BWP by the first terminal device may include, but is not limited to, the following two ways: determining the first BWP according to an instruction of the base station, or determining the first BWP autonomously by the terminal device. It should be understood that the first BWP is currently in an inactive state.

1a: Determine the first BWP through central control, that is, the network device may send DCI to the first terminal device or the network device may send indication information to the first terminal device, where the indication information includes instructing the first terminal device to switch to the first BWP Information.

For example, the first control device may receive indication information sent by a network device, where the indication information includes information instructing the first terminal device to switch to the first bandwidth portion.

1b: Determining the first BWP in a distributed manner, that is, the first terminal device may find that the channel quality of the current BWP, that is, the second BWP is poor, and the first terminal device may actively switch the BWP. The first terminal device may determine to switch to the first BWP with better channel quality.

S220. The first terminal device sends control information N times to the second terminal device, where at least one of the N times of control information includes first indication information, where the first indication information is used to activate the first Bandwidth part BWP, the N is a positive integer greater than or equal to 1.

It should be noted that, in order to ensure the reliability of the communication system, the first terminal device may send the control information to the second terminal device N times, for example, the first terminal device sends the SCI to the second terminal device N times. At least one of the N times of control information includes first indication information, where the first indication information is used to activate the first bandwidth part BWP, and N is a positive integer greater than or equal to 1. S230. The second terminal device activates the first BWP according to the first indication information.

In this embodiment of the present application, the second terminal device may determine the bandwidth part BWP to be switched by the first terminal device according to the first indication information included in the control information sent by the first terminal device, so as to avoid the need for the first terminal device and the second terminal device to The side link between them is interrupted, which improves the communication efficiency of the side link.

Optionally, at least one of the N times of control information further includes second indication information, where the second indication information is used to deactivate the second BWP.

It should be understood that the second indication information may be the first indication information, that is, the second BWP is deactivated and the first BWP is activated simultaneously through one indication.

Optionally, the first terminal device sends control information N times to the second terminal device, including:

The first terminal device sends the control information K times on the second BWP, and sends the control information on the first BWP N-K times;

At least one of the N times of control information includes first indication information, including:

At least one of the K times of control information includes the first indication information, and K is a positive integer less than or equal to N.

For example, the value of K may be included in at least one control information when the first terminal device sends the control information K times to the second terminal device.

It should be noted that, in the embodiment of the present application, the K-time control information sent by the first terminal device to the second terminal device includes first indication information, indicating activation of the first BWP. After activating the first BWP, the second terminal device receives the K+1th to N-Kth control information on the first BWP.

Optionally, the K is determined according to a first time M, and the first time M is a processing delay value of the first terminal device or a timing configured by the network device to the first terminal device value.

For example, the first terminal device may determine, according to the first time M, the number of times the control information is sent on the first BWP and the second BWP. The first time M may be a self-processing delay value of the first terminal device or the first time M may also be a timing value configured by the network device to the first terminal device.

Specifically, before the first time M, the first terminal device may send the control information K times on the second BWP; after the second time, the first terminal device may send the control information on the first BWP N-K times. The K times may be determined according to the first time M.

It should be understood that when only one BWP is in the active state between the first terminal device (eg, the sending terminal device) and the second terminal device (eg, the receiving terminal device), the first terminal device sends N times to the second terminal device. Control information, in order to ensure that the second terminal device can know that the first terminal device has performed BWP handover. If the N times of control information are all sent on the BWP after the handover, that is, the N times of control information are all sent on the first BWP, the second terminal device cannot receive the control information sent by the first terminal device. Therefore, the first terminal device needs to send control information on the second BWP at least once, and the control information includes the first indication information.

Optionally, the control information further includes resource information of the first data packet, and the method further includes:

The first terminal device may send the first data packet X times to the second terminal device, wherein the first terminal device sends the first data packet Y times on the second BWP, and sends the first data packet X-Y times on the first BWP In the first data packet, X is greater than Y, and both X and Y are positive integers.

It should be understood that when the first terminal device sends a data packet multiple times, the first data packet sent by the first terminal device each time may be exactly the same, or partially the same, or X times the first data packet is completely the same. different. In one possible way, the first data packets sent each time are all the same. For example, in order to ensure the transmission reliability of the data packet, the first terminal device repeatedly sends the same data packet to the second terminal device for many times, so that the second terminal device can receive it correctly. Or, one possible way, the content sent each time is partially the same. For example, the first data packets of X times each include partial data of a complete data packet, and the partial data overlaps. Or, in a possible way, the content sent each time may be all different. For example, for the data to be sent, the first terminal device sends a part of the data each time, and sends all the content of the data to the second terminal device in multiple times, and there is no overlap between the parts of the data. In this regard, the embodiments of the present application are not limited.

It should be understood that the first time M may be a delay value of control information, the second time L may be a delay value of data information, and the first time M and the second time L may be the same or different. For example, the value of K may be included in at least one control information when the first terminal device sends the control information K times to the second terminal device. For example, the value of the first time M may be included in at least one control information when the first terminal device sends the control information K times to the second terminal device. The first time M may be the shortest time for the first terminal device to switch from the second BWP to the first BWP.

At least one control information sent by the first terminal device to the second terminal device K times of control information includes a value that may include the second time L. The second time L may be the shortest time for data on the second BWP to be switched to the first BWP.

Optionally, the K-time control information includes resource information of the Y-time first data packets; the K-time control information or the N-K times control information includes resource information of the X-Y times first data packets. For example, the value of Y may be included in at least one control information when the first terminal device sends the control information K times to the second terminal device.

It should be understood that, in the embodiment of the present application, the control information may schedule a data packet once, and the control information may also schedule a data packet multiple times. Therefore, the K times control information may be used to instruct the first terminal device to send the resource information of the first data packet Y times, and the K times control information or the N-K times control information may be used to instruct the first terminal device to send X-Y times The resource information of the next first data packet.

Optionally, in an example, the first terminal device sends control information N times to the second terminal device, including:

The first terminal device sends the control information N times to the second terminal device on the third BWP, where the third BWP configures the activated at least two terminal devices between the first terminal device and the second terminal device. one of the BWPs.

It should be understood that when at least two BWPs are supported between a first terminal device (eg, a sending terminal device) and a second terminal device (eg, a receiving terminal device) in an active state, the first terminal device can The three BWPs send control information to the second terminal device N times, and at least one of the N times of control information includes first indication information, where the first indication information is used to activate the first bandwidth part BWP, and N is A positive integer greater than or equal to 1.

It should be noted that, when the first terminal device (for example, the sending terminal device) and the second terminal device support at least two BWPs in the active state, the sent N times of control information may include indication information for indicating deactivation of BWPs . For example, at least one of the N times of control information further includes second indication information, where the second indication information is used to deactivate the second BWP.

Optionally, the control information further includes resource information of the first data packet, and the method further includes:

The first terminal device may send the first data packet to the second terminal device X times, where X is a positive integer.

Optionally, the first terminal device may send the first data packet X times to the second terminal device, including:

The first terminal sends the first data packet X times on the second BWP.

Optionally, the first terminal device may send the first data packet X times to the second terminal device, including:

The first terminal device sends the first data packet Y times on the second BWP, and sends the first data packet X-Y times on the first BWP, where X is greater than Y, and both X and Y are positive integers.

It should be understood that when the first terminal device sends a data packet multiple times, the first data packet sent by the first terminal device each time may be exactly the same, or partially the same, or X times the first data packet is completely the same. different. In one possible way, the first data packets sent each time are all the same. For example, in order to ensure the transmission reliability of the data packet, the first terminal device repeatedly sends the same data packet to the second terminal device for many times, so that the second terminal device can receive it correctly. Or, one possible way, the content sent each time is partially the same. For example, the first data packets of X times each include partial data of a complete data packet, and the partial data overlaps. Or, in a possible way, the content sent each time may be all different. For example, for the data to be sent, the first terminal device sends a part of the data each time, and sends all the content of the data to the second terminal device in multiple times, and there is no overlap between the parts of the data. In this regard, the embodiments of the present application are not limited.

Optionally, the Y is determined according to a second time L, and the second time L is a processing delay value of the first terminal device or a timing configured by the network device to the first terminal device value.

Optionally, the first terminal device receives configuration information sent by a network device, where the configuration information includes information of at least one bandwidth part configured by the network device to the first terminal device; the first terminal device sends information to the second terminal device. The terminal device sends the configuration information.

That is, the network device may send configuration information of multiple BWPs to the first terminal device, and after receiving the configuration information, the first terminal device may forward the configuration information to the second terminal device.

Optionally, the first indication information is an identifier of the first bandwidth part.

It should be understood that, in the embodiment of the present application, at least one of the N times of control information sent by the first terminal device to the second terminal device includes first indication information, and the first indication information is used to activate the first bandwidth part BWP. The first indication information may be an identifier of the first bandwidth part, that is, in this embodiment of the present application, the second terminal device is explicitly instructed to activate the first BWP.

Optionally, the control information is carried in physical layer signaling, or MAC layer signaling, or RRC layer signaling.

For example, the first terminal device sends control information to the second terminal device, where the signaling that the control information can carry includes at least the following four types:

2a. The control information may be carried in the signaling of the physical layer.

For example, the control information sent by the first terminal device to the second terminal device is carried in the SCI of the physical layer. The SCI may include first indication information for instructing the second terminal device to activate the first bandwidth part BWP.

2b. The control information may be carried in the signaling of the MAC layer.

For example, the control information sent by the first terminal device to the second terminal device is carried in the MAC CE. The MAC CE may include first indication information for instructing the second terminal device to activate the first bandwidth part BWP.

2c. The control information may be carried in the signaling of the RRC layer.

For example, the control information sent by the first terminal device to the second terminal device is carried in the RRC IE. The RRC IE may include first indication information for instructing the second terminal device to activate the first bandwidth part BWP.

2d. The control information can be carried in MIB or SIB.

For example, the control information sent by the first terminal device to the second terminal device is carried in the system message MIB or SIB. The system message MIB or SIB may include first indication information for instructing the second terminal device to activate the first bandwidth part BWP.

In an example, the second terminal device may be instructed to activate the first BWP by means of an implicit instruction.

For example, the first terminal device determines the first bandwidth part BWP; the first terminal device sends control information N times to the second terminal device, and at least one of the N times of control information is sent on the first resource, so The N is a positive integer greater than or equal to 1, wherein the first resource is determined according to the first BWP. The second terminal device receives the control information on the first resource at least once, and the second terminal device activates the first BWP.

It should be understood that the first bandwidth part is in an inactive state, and when the second terminal device receives control information on the first resource at least once, it is determined to activate the first bandwidth part BWP. That is, the second terminal device determines the first BWP according to the first resource. There is an association relationship between the first resource and the first BWP, and the association relationship may be a mapping relationship configured by the network device to the first terminal device and the second terminal device, or may be a relationship between the first terminal device and the second terminal device. preset rules between.

It should be noted that determining the first BWP by the first terminal device may include, but is not limited to, the following two ways: determining the first BWP according to an instruction of the base station, or determining the first BWP autonomously by the terminal device. It should be understood that the first BWP is the currently inactive bandwidth portion.

1a: Determine the first BWP through central control, that is, the network device may send DCI to the first terminal device or the network device may send indication information to the first terminal device, where the indication information includes instructing the first terminal device to switch to the first BWP Information.

For example, the first control device may receive indication information sent by a network device, where the indication information includes information instructing the first terminal device to switch to the first bandwidth portion.

1b: Determining the first BWP in a distributed manner, that is, the first terminal device may find that the channel quality of the current BWP, that is, the second BWP is poor, and the first terminal device may actively switch the BWP. The first terminal device may determine to switch to the first BWP with better channel quality.

Optionally, at least one control information in the N times of control information is sent on the first resource is also used to deactivate the second BWP, and the first resource is the first subchannel on the second BWP, the One of the first resource pool on the second BWP or the first dedicated resource on the second BWP, the method includes:

The second terminal device receives the N times of control information sent by the first terminal device, and at least one of the N times of control information is in the first subchannel or the first resource pool. , or received on the first dedicated resource, and the first BWP is determined according to the first subchannel, or the first resource pool, or the first dedicated resource.

Optionally, the second terminal device receives N times of control information sent by the first terminal device, including:

The second terminal device receives K times of control information sent by the first terminal device on the second BWP, and receives N-K times of control information on the first BWP;

At least one of the N times of control information is received on the first subchannel, or the first resource pool, or the first dedicated resource, including:

At least one control information in the K times of control information is received on the first subchannel, or the first resource pool, or the first dedicated resource.

Optionally, the K is determined according to a first time M, and the first time M is a processing delay value of the first terminal device or a timing configured by the network device to the first terminal device value.

For example, the value of K may be included in at least one control information when the first terminal device sends the control information K times to the second terminal device.

For example, the value of the first time M may be included in at least one control information when the first terminal device sends the control information K times to the second terminal device. The first time M may be the shortest time for the first terminal device to switch from the second BWP to the first BWP.

For example, the first terminal device may determine, according to the first time M, the number of times the control information is sent on the first BWP and the second BWP. The first time M may be a self-processing delay value of the first terminal device or the first time M may also be a timing value configured by the network device to the first terminal device.

Specifically, before the first time M, the first terminal device may send the control information K times on the second BWP; after the second time, the first terminal device may send the control information on the first BWP N-K times. The K times may be determined according to the first time M.

It should be understood that when only one BWP is in the active state between the first terminal device (eg, the sending terminal device) and the second terminal device (eg, the receiving terminal device), the first terminal device sends N times to the second terminal device. For the control information, the control information is sent at least once on the first resource of the second BWP by means of an implicit indication, so as to ensure that the second terminal device can know that the first terminal device has performed a BWP handover. When the second terminal device activates the first BWP, the second BWP is deactivated.

For example, the control information sent on a specific subchannel on the second BWP is associated with the first BWP. If the first terminal device sends control information at least once on the specific subchannel #1 reserved on the second BWP, it means that the first terminal device sends control information at least once on the specific subchannel #1 reserved on the second BWP It will switch to the new BWP#1; if the first terminal device sends control information at least once on the specific subchannel#2 reserved on the second BWP, it means that the first terminal device will switch to the new BWP#2.

That is, if the first terminal device has multiple configuration BWPs, multiple subchannels are required. For example, if there are 4 BWP configurations, that is, in addition to the currently activated BWP, there are 3 switchable BWPs, and 3 subchannels need to be reserved.

For example, the control information is sent on the dedicated resource or resource pool on the second BWP and is associated with the first BWP. If the second terminal device detects the control information on the dedicated resource or resource pool #1 on the second BWP, it indicates that the first terminal The device will switch to the new BWP#1; if the second terminal device detects control information on the dedicated resource or resource pool #2 on the second BWP, the first terminal device will switch to the new BWP#2.

That is, if the first terminal device has multiple configured BWPs, multiple dedicated resources are required. For example, if there are 4 BWP configurations, that is, in addition to the currently activated BWP, there are 3 switchable BWPs, and 3 dedicated resources need to be reserved.

Optionally, the control information further includes resource information of the first data packet, and the method further includes:

The first terminal device sends the first data packet X times to the second terminal device, where X is a positive integer.

Optionally, the first terminal device sends the first data packet X times to the second terminal device, including:

The first terminal device sends the first data packet Y times on the second BWP, and sends the first data packet X-Y times on the first BWP, where X is greater than Y, and both X and Y are positive integers.

It should be understood that when the first terminal device sends a data packet multiple times, the first data packet sent by the first terminal device each time may be exactly the same, or partially the same, or X times the first data packet is completely the same. different. In one possible way, the first data packets sent each time are all the same. For example, in order to ensure the transmission reliability of the data packet, the first terminal device repeatedly sends the same data packet to the second terminal device for many times, so that the second terminal device can receive it correctly. Or, one possible way, the content sent each time is partially the same. For example, the first data packets of X times each include partial data of a complete data packet, and the partial data overlaps. Or, in a possible way, the content sent each time may be all different. For example, for the data to be sent, the first terminal device sends a part of the data each time, and sends all the content of the data to the second terminal device in multiple times, and there is no overlap between the parts of the data. In this regard, the embodiments of the present application are not limited.

Optionally, the Y is determined according to a second time L, and the second time L is a processing delay value of the first terminal device or a timing configured by the network device to the first terminal device value.

For example, at least one control information sent by the first terminal device to the second terminal device K times of control information includes a value that may include the second time L. The second time L may be the shortest time for data on the second BWP to be switched to the first BWP.

Optionally, the K-time control information includes resource information of the Y-time first data packets; the K-time control information or the N-K times control information includes resource information of the X-Y times first data packets.

For example, the value of Y may be included in at least one control information when the first terminal device sends the control information K times to the second terminal device.

It should be understood that, in the embodiment of the present application, the control information may schedule a data packet once, and the control information may also schedule a data packet multiple times. Therefore, the K times control information may be used to instruct the first terminal device to send the resource information of the first data packet Y times, and the K times control information or the N-K times control information may be used to instruct the first terminal device to send X-Y times Resource information of the next first data packet.

Optionally, in an example, the first resource is one of the second subchannel on the third BWP, the second resource pool on the third BWP, or the second dedicated resource on the third BWP, and the The third BWP is one of at least two BWPs that have been activated between the first terminal device and the second terminal device, and the method includes:

The second terminal device receives, on the third BWP, the control information sent by the first terminal device N times, and at least one control information in the N times of control information is on the second subchannel, or the second subchannel. received on the second resource pool or the second dedicated resource, and the first BWP is determined according to the second subchannel, or the second resource pool, or the second dedicated resource.

It should be understood that when at least two BWPs are supported between a first terminal device (eg, a sending terminal device) and a second terminal device (eg, a receiving terminal device) in an active state, the first terminal device can The third BWP sends the control information to the second terminal device N times, and sends the control information at least once on the first resource of the third BWP by means of implicit instructions, so as to ensure that the second terminal device can know that the first terminal device has performed BWP. switch, that is, activate the first BWP.

For example, the control information sent on a specific subchannel on the third BWP is associated with the first BWP. If the first terminal device sends the control information at least once on the specific subchannel #1 reserved on the third BWP, it means that the first terminal device Will switch to the new BWP#1; if the first terminal device sends control information at least once on the specific subchannel#4 reserved on the third BWP, it means that the first terminal device will switch to the new BWP#4 .

That is, if the first terminal device has multiple configuration BWPs, multiple subchannels are required. For example, if there are 4 BWP configurations, that is, in addition to the currently activated BWP, there are 3 switchable BWPs, and 3 subchannels need to be reserved.

For example, the control information is sent to the dedicated resource or dedicated resource pool on the third BWP in association with the first BWP, and the control information is sent at least once on the dedicated resource pool on the third BWP. Dedicated resource or resource pool #1 The control information is detected on the dedicated resource pool, which will indicate that the first terminal device switches the second BWP to the new BWP #1; if the second terminal device is in the dedicated resource or resource pool on the third BWP The control information is detected on #4, which will indicate that the first terminal device switches the second BWP to the new BWP #4.

That is, if the first terminal device has multiple configured BWPs, multiple dedicated resources are required. For example, if there are 4 BWP configurations, that is, in addition to the currently activated BWP, there are 3 switchable BWPs, and 3 dedicated resources need to be reserved.

It should be noted that the implicit notification may also include other possible implementation manners, for example, the first BWP is obtained indirectly through the CCE index/number of symbols/symbol position/time slot of the control information at least once. This application does not limit this.

It should be understood that at least one control information in the N times of control information is information that is sent on the first resource and is also used to indicate deactivation of the BWP. For example, at least one control information in the N times of control information is sent on the first resource is also used to deactivate the second BWP.

Optionally, the control information further includes resource information of the first data packet, and the method further includes:

The first terminal device sends the first data packet X times to the second terminal device, where X is a positive integer.

Optionally, the first terminal device sends the first data packet X times to the second terminal device, including:

The first terminal device sends the first data packet X times on a second BWP, where the second BWP is one of at least two BWPs that have been activated between the first terminal device and the second terminal device. One.

Optionally, the first terminal device sends the first data packet X times to the second terminal device, including:

The first terminal device sends the first data packet Y times on the second BWP, and sends the first data packet X-Y times on the first BWP, where X is greater than Y, and both X and Y are positive integers.

It should be understood that when the first terminal device sends a data packet multiple times, the first data packet sent by the first terminal device each time may be exactly the same, or partially the same, or X times the first data packet is completely the same. different. In one possible way, the first data packets sent each time are all the same. For example, in order to ensure the transmission reliability of the data packet, the first terminal device repeatedly sends the same data packet to the second terminal device for many times, so that the second terminal device can receive it correctly. Or, one possible way, the content sent each time is partially the same. For example, the first data packets of X times each include partial data of a complete data packet, and the partial data overlaps. Or, in a possible way, the content sent each time may be all different. For example, for the data to be sent, the first terminal device sends a part of the data each time, and sends all the content of the data to the second terminal device in multiple times, and there is no overlap between the parts of the data. In this regard, the embodiments of the present application are not limited.

Optionally, the Y is determined according to a second time L, and the second time L is a processing delay value of the first terminal device or a timing configured by the network device to the first terminal device value.

Optionally, the first terminal device receives configuration information sent by a network device, where the configuration information includes information of at least one bandwidth part configured by the network device to the first terminal device; the first terminal device sends information to the second terminal device. The terminal device sends the configuration information.

That is, the network device may send configuration information of multiple BWPs to the first terminal device, and after receiving the configuration information, the first terminal device may forward the configuration information to the second terminal device.

Optionally, the control information is carried in physical layer signaling, or MAC layer signaling, or RRC layer signaling.

For example, the first terminal device sends control information to the second terminal device, where the signaling that the control information can carry includes at least the following four types:

2a. The control information may be carried in the signaling of the physical layer.

For example, the control information sent by the first terminal device to the second terminal device is carried in the SCI of the physical layer. The SCI may include first indication information for instructing the second terminal device to activate the first bandwidth part BWP.

2b. The control information may be carried in the signaling of the MAC layer.

For example, the control information sent by the first terminal device to the second terminal device is carried in the MAC CE. The MAC CE may include first indication information for instructing the second terminal device to activate the first bandwidth part BWP.

2c. The control information may be carried in the signaling of the RRC layer.

For example, the control information sent by the first terminal device to the second terminal device is carried in the RRC IE. The RRC IE may include first indication information for instructing the second terminal device to activate the first bandwidth part BWP.

2d. The control information can be carried in MIB or SIB.

For example, the control information sent by the first terminal device to the second terminal device is carried in the system message MIB or SIB. The system message MIB or SIB may include first indication information for instructing the second terminal device to activate the first bandwidth part BWP.

Optionally, in an example, the network device may directly send the first indication information and configuration information to the first terminal device and the second terminal device, that is, in this embodiment of the present application, the information for activating the first bandwidth part BWP. The information may not need to be forwarded to the second terminal device through the first terminal device, and the network device may directly send the first indication information to the first terminal device and the second terminal device.

For example, the network device configures at least one bandwidth part BWP, and the at least one BWP includes the first BWP;

The network device sends first indication information to the first terminal device and the second terminal device, where the first indication information is used to activate the first BWP.

Optionally, the first indication information is carried in MIB message; or, the first indication information is carried in SIB message; or, the first indication information is carried in RRC signaling; or, the first indication information It is carried in MAC signaling; or, the first indication information is carried in DCI signaling.

Optionally, the first indication information further includes at least one of an identifier of the first terminal device, an identifier of the second terminal device, an identifier of a terminal device pair, and an identifier of a terminal device group, wherein the The terminal device pair and the terminal device group include the first terminal device and the second terminal device.

Optionally, the method further includes:

The second terminal device receives the configuration information sent by the network device, where the configuration information includes information of at least one bandwidth part configured by the network device to the first terminal device.

Optionally, the configuration information includes at least one of an identifier of the second terminal device, an identifier of a terminal device pair, and an identifier of a terminal device group, wherein the terminal device pair and the terminal device group include all the second terminal device.

For example, if the side link between the first terminal device and the second terminal device is unicast, the network device sends the BWP configuration and the first indication information to the UE pair (pair) composed of the first terminal device and the second terminal device . The network device can send to the first terminal device and the second terminal device at the same time, or can send to the first terminal device and the second terminal device respectively.

For example, if the side link between the first terminal device and the second terminal device is multicast, the network device sends the BWP configuration and the first indication information to the group where the first terminal device and the second terminal device are located.

For example, if the side link between the first terminal device and the second terminal device is broadcast, the network device broadcasts the BWP configuration and the first indication information; the second terminal device receives the broadcast message, and the second terminal that can receive the broadcast message The device may monitor the transmission of the PSCCH/PSSCH of the first terminal device.

It should be understood that, in various embodiments of the present application, the size of the sequence numbers of the above-mentioned processes does not mean the sequence of execution, and the execution sequence of each process should be determined by its functions and internal logic, and should not be dealt with in the embodiments of the present application. implementation constitutes any limitation.

The method for sending or receiving control information according to the embodiments of the present application is described in detail above. In this application, the first terminal device sends the control information to the second terminal device, and the control information uses an explicit indication method, that is, the control information includes a method for The first indication information of the first BWP is activated, or an implicit indication method is used, that is, the control information is sent on the first resource at least once, so that the second terminal device can learn that the first terminal device has switched the BWP. It should be understood that the first terminal device, the second terminal device, and the network device in the embodiments of the present application may execute various methods in the foregoing embodiments of the present application, that is, for the specific working processes of the following various products, reference may be made to the foregoing method embodiments. corresponding process.

FIG. 8 is a schematic block diagram of an apparatus 600 for sending control information according to an embodiment of the present application. It should be understood that the apparatus 600 can perform the method in FIG. 7 and each step performed by the first terminal device in a possible implementation manner, and in order to avoid repetition, details are not described here. The apparatus 600 includes: a processing unit 610 and a communication unit 620 .

The processing unit 610 is configured to determine the first bandwidth part BWP; the communication unit 620 is configured to send N times of control information to the second terminal device, where at least one of the N times of control information includes first indication information, wherein the The first indication information is used to activate the first bandwidth part BWP, and the N is a positive integer greater than or equal to 1.

In this embodiment of the present application, the second terminal device may determine the bandwidth part BWP to be switched by the first terminal device according to the first indication information included in the control information sent by the first terminal device, so as to avoid the need for the first terminal device and the second terminal device to The side link between them is interrupted, which improves the communication efficiency of the side link.

Optionally, at least one of the N times of control information further includes second indication information, where the second indication information is used to deactivate the second BWP.

Optionally, the communication unit 620 is specifically configured to: send control information K times on the second BWP, and send control information N-K times on the first BWP; at least one of the N times of control information includes the first indication information, including:

At least one of the K times of control information includes the first indication information, and K is a positive integer less than or equal to N.

Optionally, the communication unit 620 is specifically configured to: send the control information N times to a second terminal device on a third BWP, where the third BWP is the first terminal device and the second terminal device one of at least two BWPs that have been activated between.

Optionally, the communication unit 620 is further configured to: send the first data packet X times to the second terminal device, where X is a positive integer.

Optionally, the communication unit 620 is specifically configured to: send the first data packet Y times on the second BWP, and send the first data packet X-Y times on the first BWP, where Y is a positive value less than or equal to X. Integer.

Optionally, the K is determined according to a first time M, and the first time M is a processing delay value of the first terminal device or a timing configured by the network device to the first terminal device value.

Optionally, the Y is determined according to a second time L, and the second time L is a processing delay value of the first terminal device or a timing configured by the network device to the first terminal device value.

Optionally, the K-time control information is used to instruct the first terminal device to send the resource of the Y-time data information; the K-time control information or the N-K times control information is used to instruct the first terminal The device sends the resource of the data information X-Y times.

Optionally, the communication unit 620 is further configured to: receive third indication information sent by the network device, where the third indication information is used to instruct the first terminal device to switch to the first bandwidth part.

Optionally, the communication unit 620 is further configured to: receive configuration information sent by the network device, where the configuration information includes information of at least one bandwidth part configured by the network device to the first terminal device; The second terminal device sends the configuration information.

Optionally, the control information is carried in physical layer signaling, or MAC layer signaling, or RRC layer signaling.

In this embodiment of the present application, the apparatus 600 includes: a processing unit 610 and a communication unit 620 .

a processing unit 610, configured to determine the first bandwidth part BWP;

The communication unit 620 is configured to send N times of control information to the second terminal device, at least one of the N times of control information is sent on the first resource, and the N is a positive integer greater than or equal to 1, The first resource is determined according to the first BWP.

Optionally, at least one control information in the N times of control information is sent on the first resource is also used to deactivate the second BWP, and the first resource is the first subchannel on the second BWP, the One of the first resource pool on the second BWP or the first dedicated resource on the second BWP, the communication unit 620 is specifically configured to:

Sending control information N times to the second terminal device, at least one control information in the N times of control information is sent on the first subchannel, or the first resource pool, or the first dedicated resource , the first subchannel, or the first resource pool, or the first dedicated resource is determined according to the first BWP.

Optionally, the communication unit 620 is specifically used for:

sending control information K times on the second BWP, and sending control information N-K times on the first BWP;

At least one of the N times of control information is sent on the first subchannel, or the first resource pool, or the first dedicated resource, including:

At least one control information in the K times of control information is sent on the first subchannel, or the first resource pool, or the first dedicated resource.

Optionally, the first resource is one of the second subchannel on the third BWP, the second resource pool on the third BWP, or the second dedicated resource on the third BWP, and the third BWP is the One of at least two BWPs that have been activated between the first terminal device and the second terminal device, the communication unit 620 is specifically configured to:

Sending control information N times to the second terminal device on the third BWP, at least one control information in the N times of control information is in the second subchannel, or the second resource pool, or the Sent on the second dedicated resource, the second subchannel, or the second resource pool, or the second dedicated resource is determined according to the first BWP.

Optionally, the communication unit 620 is further configured to: send the first data packet X times to the second terminal device, where X is a positive integer.

Optionally, the communication unit 620 is specifically configured to: send the first data packet Y times on the second BWP, and send the first data packet X-Y times on the first BWP, where Y is a positive value less than or equal to X. Integer.

Optionally, the communication unit 620 is specifically configured to: send the first data packet X times in the third BWP, where the third BWP is an activated one between the first terminal device and the second terminal device. One of at least two BWPs.

Optionally, the K is determined according to a first time M, and the first time M is a processing delay value of the first terminal device or a timing configured by the network device to the first terminal device value.

Optionally, the Y is determined according to a second time L, and the second time L is a processing delay value of the first terminal device or a timing configured by the network device to the first terminal device value.

Optionally, the K-time control information is used to instruct the first terminal device to send the resource of the Y-time data information; the K-time control information or the N-K times control information is used to instruct the first terminal The device sends the resource of the data information X-Y times.

Optionally, the communication unit 620 is further configured to: receive third indication information sent by the network device, where the third indication information is used to instruct the first terminal device to switch to the first bandwidth part.

Optionally, the communication unit 620 is further configured to: receive configuration information sent by the network device, where the configuration information includes information of at least one bandwidth part configured by the network device to the first terminal device; The second terminal device sends the configuration information.

Optionally, the control information is carried in physical layer signaling, or MAC layer signaling, or RRC layer signaling.

In this embodiment of the present application, the apparatus 600 includes: a processing unit 610 and a communication unit 620 .

A communication unit 620, configured to receive first indication information sent by the network device, wherein the first indication information is used to activate the first bandwidth part BWP;

The processing unit 610 is configured to activate the first BWP according to the first indication information.

Optionally, the first indication information is carried in MIB message; or, the first indication information is carried in SIB message; or, the first indication information is carried in RRC signaling; or, the first indication information It is carried in MAC signaling; or, the first indication information is carried in DCI signaling.

Optionally, the first indication information includes at least one of an identifier of the apparatus, an identifier of a terminal device pair, and an identifier of a terminal device group, wherein the terminal device pair and the terminal device group include the the device.

Optionally, the communication unit 620 is also used for:

Receive configuration information sent by the network device, where the configuration information includes information of at least one bandwidth part configured by the network device.

Optionally, the configuration information includes at least one of an identifier of the apparatus, an identifier of a terminal device pair, and an identifier of a terminal device group, wherein the terminal device pair and the terminal device group include the device.

It can be understood that, for the implementation manner and interaction of each unit in the apparatus 600 in the embodiment of the present application, reference may be made to the relevant description in the method embodiment.

FIG. 9 is a schematic block diagram of an apparatus 700 for receiving control information according to an embodiment of the present application. It should be understood that the apparatus 700 can perform the method in FIG. 7 and each step performed by the second terminal device in a possible implementation manner, and in order to avoid repetition, details are not described herein again. The apparatus 700 includes: a processing unit 710 and a communication unit 720 .

The communication unit 720 is configured to receive N times of control information sent by the first terminal device, wherein at least one of the N times of control information includes first indication information, wherein the first indication information is used to activate the first indication information. A bandwidth part BWP, the N is a positive integer greater than or equal to 1;

The processing unit 710 is configured to activate the first BWP according to the first indication information.

In this embodiment of the present application, the second terminal device may determine the bandwidth part BWP to be switched by the first terminal device according to the first indication information included in the control information sent by the first terminal device, so as to avoid the need for the first terminal device and the second terminal device to The side link between them is interrupted, which improves the communication efficiency of the side link.

Optionally, at least one of the N times of control information further includes second indication information, where the second indication information is used to deactivate the second BWP.

Optionally, the communication unit 720 is specifically configured to: the second terminal device receives control information K times on the second BWP, and receives control information N-K times on the first BWP;

At least one of the N times of control information includes first indication information, including:

At least one of the K times of control information includes the first indication information, and K is a positive integer less than or equal to N.

Optionally, the communication unit 720 is specifically configured to: receive the N times of control information at a third BWP, where the third BWP is at least two activated between the first terminal device and the second terminal device. one of the BWPs.

Optionally, the communication unit 720 is further configured to: receive the first data packet X times sent by the first terminal device, where X is a positive integer.

Optionally, the communication unit 720 is specifically configured to: receive the first data packet Y times on the second BWP, and receive the first data packet X-Y times on the first BWP, where Y is less than or A positive integer equal to X.

Optionally, the K is determined according to a first time M, and the first time M is a processing delay value of the first terminal device or a timing configured by the network device to the first terminal device value.

Optionally, the Y is determined according to a second time L, and the second time L is a processing delay value of the first terminal device or a timing configured by the network device to the first terminal device value.

Optionally, the K times of control information includes the resource information of the first data packet of the Y times; the K times of control information or the N-K times of control information includes the X-Y times of the first data packet. resource information.

Optionally, the first indication information is an identifier of the first bandwidth part.

Optionally, the communication unit 720 is further configured to: receive configuration information sent by the first terminal device, where the configuration information includes information of at least one bandwidth part configured by the network device to the first terminal device.

Optionally, the control information is carried in physical layer signaling, or MAC layer signaling, or RRC layer signaling.

In this embodiment of the present application, the apparatus 700 includes: a processing unit 710 and a communication unit 720 .

A communication unit 720, configured to receive N times of control information sent by the first terminal device, at least one of the N times of control information is received on the first resource, and the N is a positive integer greater than or equal to 1 ;

The processing unit 710 is configured to determine and activate the first bandwidth part BWP according to the first resource.

Optionally, at least one control information in the N times of control information is sent on the first resource is also used to deactivate the second BWP, and the first resource is the first subchannel on the second BWP, the One of the first resource pool on the second BWP or the first dedicated resource on the second BWP, the communication unit 720 is specifically configured to:

Receive the N times of control information sent by the first terminal device, where at least one of the N times of control information is in the first subchannel, or the first resource pool, or the first If received on a dedicated resource, the first BWP is determined according to the first subchannel, or the first resource pool, or the first dedicated resource.

Optionally, the communication unit 720 is specifically used for:

receiving control information sent by the first terminal device K times on the second BWP, and receiving control information on the first BWP for N-K times;

At least one of the N times of control information is received on the first subchannel, or the first resource pool, or the first dedicated resource, including:

At least one control information in the K times of control information is received on the first subchannel, or the first resource pool, or the first dedicated resource.

Optionally, the first resource is one of the second subchannel on the third BWP, the second resource pool on the third BWP, or the second dedicated resource on the third BWP, and the third BWP is the One of at least two BWPs that have been activated between the first terminal device and the second terminal device, the communication unit 720 is specifically configured to:

receiving, on the third BWP, N times of control information sent by the first terminal device, at least one of the N times of control information is in the second subchannel or the second resource pool, or received on the second dedicated resource, the first BWP is determined according to the second subchannel, or the second resource pool, or the second dedicated resource.

Optionally, the communication unit 720 is further configured to: receive the first data packet X times sent by the first terminal device, where X is a positive integer.

Optionally, the communication unit 720 is specifically configured to: receive the first data packet Y times on the second BWP, and receive the first data packet X-Y times on the first BWP, where Y is less than or A positive integer equal to X.

Optionally, the K is determined according to a first time M, and the first time M is a processing delay value of the first terminal device or a timing configured by the network device to the first terminal device value.

Optionally, the Y is determined according to a second time L, and the second time L is a processing delay value of the first terminal device or a timing configured by the network device to the first terminal device value.

Optionally, the K times of control information includes the resource information of the first data packet of the Y times; the K times of control information or the N-K times of control information includes the X-Y times of the first data packet. resource information.

Optionally, the first indication information is an identifier of the first bandwidth part.

Optionally, the communication unit 720 is further configured to: receive configuration information sent by the first terminal device, where the configuration information includes information of at least one bandwidth part configured by the network device to the first terminal device.

Optionally, the control information is carried in physical layer signaling, or MAC layer signaling, or RRC layer signaling.

In this embodiment of the present application, the apparatus 700 includes: a processing unit 710 and a communication unit 720 .

A communication unit 720, configured to receive first indication information sent by the network device, wherein the first indication information is used to activate the first bandwidth part BWP;

The processing unit 710 is configured to activate the first BWP according to the first indication information.

Optionally, the first indication information is carried in MIB message; or, the first indication information is carried in SIB message; or, the first indication information is carried in RRC signaling; or, the first indication information It is carried in MAC signaling; or, the first indication information is carried in DCI signaling.

Optionally, the first indication information includes at least one of an identifier of the apparatus, an identifier of a terminal device pair, and an identifier of a terminal device group, wherein the terminal device pair and the terminal device group include the second terminal equipment.

Optionally, the communication unit 720 is also used for:

Receive configuration information sent by the network device, where the configuration information includes information of at least one bandwidth part configured by the network device.

Optionally, the configuration information includes at least one of an identifier of the apparatus, an identifier of a pair of terminal equipment, and an identifier of a terminal equipment group, wherein the terminal equipment pair and the terminal equipment group include the apparatus.

It can be understood that, for the implementation manner and interaction of each unit in the apparatus 700 in the embodiment of the present application, reference may be made to the relevant description in the method embodiment.

FIG. 10 is a schematic block diagram of an apparatus 800 for sending control information according to an embodiment of the present application. It should be understood that the apparatus 800 can perform various steps performed by the network device in the foregoing method embodiments and possible implementation manners, and in order to avoid repetition, details are not described herein again. The apparatus 800 includes: a processing unit 810 and a communication unit 820 .

The processing unit 810 is configured to configure at least one bandwidth part, and the at least one BWP includes a first BWP; the communication unit 820 is configured to send first indication information to the first terminal device and the second terminal device, wherein the The first indication information is used to activate the first bandwidth part BWP.

In the embodiment of the present application, the first terminal device and the second terminal device can obtain the first indication information sent by the network device, so as to determine the handover bandwidth part of the first terminal device, so as to avoid the communication between the first terminal and the receiving terminal. The side link is interrupted, which improves the communication efficiency of the side link.

Optionally, the first indication information is carried in MIB message; or, the first indication information is carried in SIB message; or, the first indication information is carried in RRC signaling; or, the first indication information It is carried in MAC signaling; or, the first indication information is carried in DCI signaling.

Optionally, the first indication information includes at least one of an identifier of the first terminal device, an identifier of the second terminal device, an identifier of a terminal device pair, and an identifier of a terminal device group, wherein the terminal The device pair and the terminal device group include the first terminal device and the second terminal device.

Optionally, the communication unit 820 is further configured to: send configuration information to the first terminal device and the second terminal device, where the configuration information includes at least the configuration information configured by the network device to the first terminal device Information about a bandwidth section.

Optionally, the configuration information includes at least one of an identifier of the first terminal device, an identifier of the second terminal device, an identifier of a terminal device pair, and an identifier of a terminal device group, wherein the terminal device pair And the terminal device group includes the first terminal device and the second terminal device.

It can be understood that, for the implementation manner and interaction of each unit in the apparatus 800 in the embodiment of the present application, reference may be made to the relevant description in the method embodiment.

It can be understood that, each unit module in the apparatus 600, the apparatus 700, and the apparatus 800 may be provided independently, or may be integrated together. The above-mentioned respective unit modules may also be referred to as components or circuits.

It can be understood that the above-mentioned apparatus 600 or apparatus 700 or apparatus 800 may be implemented by at least one processor, or by at least one processor and at least one memory, or by at least one processor and at least one transceiver, or by at least one processor and at least one transceiver. It can be implemented by at least one processor and at least one transceiver and at least one memory. The above-mentioned processors, transceivers and memories can be set independently or integrated together.

Figure 11 shows a schematic structural diagram of a device. The communication apparatus 1000 can be used to implement the method for the corresponding part of the first terminal device described in the above method embodiments, or can be used to implement the method for the corresponding part of the first terminal device described in the above method embodiments, or it can be For implementing the network device described in the foregoing method embodiments, refer to the descriptions in the foregoing method embodiments for details.

The communication apparatus 1000 may include one or more processors 31, and the processors 31 may also be referred to as processing units, which may implement certain control functions. The processor 31 may be a general-purpose processor or a special-purpose processor or the like.

In an optional design, the memory 32 may also store instructions 33, and the instructions 33 may be executed by the processor 31, so that the communication apparatus 1000 executes the corresponding first terminal described in the foregoing method embodiments. A method implemented by a device or a first terminal device or a network device.

In yet another possible design, the communication apparatus 1000 may include a circuit, and the circuit may implement the functions of sending or receiving or communicating in the foregoing method embodiments.

Optionally, the communication apparatus 1000 may include one or more memories 32 on which instructions 33 or intermediate data are stored, and the instructions 33 may be executed on the processor 31, so that the communication apparatus 1000 Execute the method of the first terminal device or the second terminal device or the network device in the above method embodiments. Optionally, other related data may also be stored in the memory. Optionally, instructions and/or data may also be stored in the processor. The processor and the memory can be provided separately or integrated together.

Optionally, the communication apparatus 1000 may further include a transceiver 35 . The processor 31 may be referred to as a processing unit. The transceiver 35 may be referred to as a transceiver unit, a transceiver, a transceiver circuit, or a transceiver, etc., and is used to implement the transceiver function of the communication device.

In one design, an apparatus for transmitting control information (eg, an integrated circuit, wireless device, circuit module, network device, terminal, etc.) may include a processor and a transceiver. If the apparatus is used in the steps or operations of the first terminal device in the above method embodiment, for example, the processor 31 may determine the first bandwidth part BWP;

The transceiver 35 sends control information to the second terminal device N times, and at least one of the N times of control information includes first indication information, wherein the first indication information is used to activate the first bandwidth part BWP, so The N is a positive integer greater than or equal to 1.

Optionally, at least one of the N times of control information further includes second indication information, where the second indication information is used to deactivate the second BWP.

Optionally, the transceiver 35 is specifically used for:

Sending control information K times on the second BWP, and sending control information on the first BWP N-K times;

At least one of the N times of control information includes first indication information, including:

At least one of the K times of control information includes the first indication information, and K is a positive integer less than or equal to N.

Optionally, the transceiver 35 is specifically used for:

The control information is sent N times to the second terminal device on a third BWP, where the third BWP is one of at least two BWPs that have been activated between the first terminal device and the second terminal device.

Optionally, the control information further includes resource information of the first data packet, and the transceiver 35 is further configured to:

Send the first data packet X times to the second terminal device, where X is a positive integer.

Optionally, the transceiver 35 is specifically used for:

The first data packet is sent Y times on the second BWP, and the first data packet is sent X-Y times on the first BWP, where Y is a positive integer less than or equal to X.

Optionally, the K is determined according to a first time M, and the first time M is a processing delay value of the first terminal device or a timing configured by the network device to the first terminal device value.

Optionally, the Y is determined according to a second time L, and the second time L is a processing delay value of the first terminal device or a timing configured by the network device to the first terminal device value.

Optionally, the K-time control information includes resource information of the Y-time first data packets; the K-time control information or the N-K times control information includes resource information of the X-Y times first data packets.

Optionally, the transceiver 35 is also used for:

Receive third indication information sent by the network device, where the third indication information is used to instruct the first terminal device to switch to the first bandwidth part

Optionally, the transceiver 35 is also used for:

receiving configuration information sent by the network device, where the configuration information includes information about at least one bandwidth part configured by the network device to the first terminal device;

Optionally, the control information is carried in physical layer signaling, or MAC layer signaling, or RRC layer signaling.

In one design, an apparatus for transmitting control information (eg, an integrated circuit, wireless device, circuit module, network device, terminal, etc.) may include a processor and a transceiver. If the apparatus is used in the steps or operations of the first terminal device in the above method embodiment, for example, the processor 31 may determine the first bandwidth part BWP;

The transceiver 35 sends control information to the second terminal device N times, at least one of the N times of control information is sent on the first resource, and N is a positive integer greater than or equal to 1, where all The first resource is determined according to the first BWP.

Optionally, at least one control information in the N times of control information is sent on the first resource is also used to deactivate the second BWP, and the first resource is the first subchannel on the second BWP, the One of the first resource pool on the second BWP or the first dedicated resource on the second BWP, the transceiver 35 is specifically used for:

Sending control information N times to the second terminal device, at least one control information in the N times of control information is sent on the first subchannel, or the first resource pool, or the first dedicated resource , the first subchannel, or the first resource pool, or the first dedicated resource is determined according to the first BWP.

Optionally, the transceiver 35 is specifically used for:

sending control information K times on the second BWP, and sending control information on the first BWP N-K times;

At least one of the N times of control information is sent on the first subchannel, or the first resource pool, or the first dedicated resource, including:

At least one control information in the K times of control information is sent on the first subchannel, or the first resource pool, or the first dedicated resource.

Optionally, the first resource is one of the second subchannel on the third BWP, the second resource pool on the third BWP, or the second dedicated resource on the third BWP, and the third BWP is the One of at least two BWPs that have been activated between the first terminal device and the second terminal device, the transceiver 35 is specifically used for:

Sending control information N times to the second terminal device on the third BWP, at least one control information in the N times of control information is in the second subchannel, or the second resource pool, or the Sent on the second dedicated resource, the second subchannel, or the second resource pool, or the second dedicated resource is determined according to the first BWP.

Optionally, the control information further includes resource information of the first data packet, and the transceiver 35 is further configured to:

Send the first data packet X times to the second terminal device, where X is a positive integer.

Optionally, the transceiver 35 is specifically used for:

The first data packet is sent Y times on the second BWP, and the first data packet is sent X-Y times on the first BWP, where Y is a positive integer less than or equal to X.

Optionally, the K is determined according to a first time M, and the first time M is a processing delay value of the first terminal device or a timing configured by the network device to the first terminal device value.

Optionally, the Y is determined according to a second time L, and the second time L is a processing delay value of the first terminal device or a timing configured by the network device to the first terminal device value.

Optionally, the K-time control information includes resource information of the Y-time first data packets; the K-time control information or the N-K times control information includes resource information of the X-Y times first data packets.

Optionally, the transceiver 35 is also used for:

Receive third indication information sent by the network device, where the third indication information is used to instruct the first terminal device to switch to the first bandwidth part

Optionally, the transceiver 35 is also used for:

receiving configuration information sent by the network device, where the configuration information includes information about at least one bandwidth part configured by the network device to the first terminal device;

Optionally, the control information is carried in physical layer signaling, or MAC layer signaling, or RRC layer signaling.

In one design, an apparatus for transmitting control information (eg, an integrated circuit, wireless device, circuit module, network device, terminal, etc.) may include a processor and a transceiver. If the apparatus is used in the steps or operations of the first terminal device in the above method embodiments, for example, the transceiver 35 may receive the first indication information sent by the network device, where the first indication information is used to activate the first indication information. A bandwidth part BWP;

The processor 31 activates the first BWP according to the first indication information.

Optionally, the first indication information is carried in MIB message; or, the first indication information is carried in SIB message; or, the first indication information is carried in RRC signaling; or, the first indication information It is carried in MAC signaling; or, the first indication information is carried in DCI signaling.

Optionally, the first indication information includes at least one of an identifier of the apparatus, an identifier of a terminal device pair, and an identifier of a terminal device group, wherein the terminal device pair and the terminal device group include the the device.

Optionally, the transceiver 35 is also used for:

Receive configuration information sent by the network device, where the configuration information includes information of at least one bandwidth part configured by the network device.

Optionally, the configuration information includes at least one of an identifier of the apparatus, an identifier of a terminal device pair, and an identifier of a terminal device group, wherein the terminal device pair and the terminal device group include the device.

In one design, an apparatus (eg, integrated circuit, wireless device, circuit module, network device, terminal, etc.) that receives control information may include a processor and a transceiver. If the apparatus is used in the steps or operations of the second terminal device in the above method embodiments, for example, the transceiver 35 may receive N times of control information sent by the first terminal device, wherein the N times of control information including first indication information at least once, wherein the first indication information is used to activate the first bandwidth part BWP, and the N is a positive integer greater than or equal to 1;

The processor 31 activates the first BWP according to the first indication information.

Optionally, at least one of the N times of control information further includes second indication information, where the second indication information is used to deactivate the second BWP.

Optionally, the transceiver 35 is specifically used for:

Receive control information K times at the second BWP, and receive control information N-K times at the first BWP;

At least one of the N times of control information includes first indication information, including:

At least one of the K times of control information includes the first indication information, and K is a positive integer less than or equal to N.

Optionally, the transceiver 35 is specifically used for:

The control information is received N times at a third BWP, where the third BWP is one of at least two BWPs that have been activated between the first terminal device and the second terminal device.

Optionally, the transceiver 35 is further configured to: receive the first data packet X times sent by the first terminal device, where X is a positive integer.

Optionally, the transceiver 35 is specifically configured to: receive the first data packet Y times on the second BWP, and receive the first data packet X-Y times on the first BWP, where Y is less than or A positive integer equal to X.

Optionally, the K is determined according to a first time M, and the first time M is a processing delay value of the first terminal device or a timing configured by the network device to the first terminal device value.

Optionally, the Y is determined according to a second time L, and the second time L is a processing delay value of the first terminal device or a timing configured by the network device to the first terminal device value.

Optionally, the K times of control information includes the resource information of the first data packet of the Y times; the K times of control information or the N-K times of control information includes the X-Y times of the first data packet. resource information.

Optionally, the first indication information is an identifier of the first bandwidth part.

In one design, an apparatus (eg, integrated circuit, wireless device, circuit module, network device, terminal, etc.) that receives control information may include a processor and a transceiver. If the apparatus is used in the steps or operations of the second terminal device in the above method embodiments, for example, the transceiver 35 may receive N times of control information sent by the first terminal device, and at least one of the N times of control information controls the The information is received on the first resource, and the N is a positive integer greater than or equal to 1;

The processor 31 determines to activate the first bandwidth part BWP according to the first resource.

Optionally, at least one control information in the N times of control information is sent on the first resource is also used to deactivate the second BWP, and the first resource is the first subchannel on the second BWP, the One of the first resource pool on the second BWP or the first dedicated resource on the second BWP, the transceiver 35 is specifically used for:

Receive the N times of control information sent by the first terminal device, where at least one of the N times of control information is in the first subchannel, or the first resource pool, or the first If received on a dedicated resource, the first BWP is determined according to the first subchannel, or the first resource pool, or the first dedicated resource.

Optionally, the transceiver 35 is specifically used for:

receiving control information sent by the first terminal device K times on the second BWP, and receiving control information on the first BWP for N-K times;

At least one of the N times of control information is received on the first subchannel, or the first resource pool, or the first dedicated resource, including:

At least one control information in the K times of control information is received on the first subchannel, or the first resource pool, or the first dedicated resource.

Optionally, the first resource is one of the second subchannel on the third BWP, the second resource pool on the third BWP, or the second dedicated resource on the third BWP, and the third BWP is the One of at least two BWPs that have been activated between the first terminal device and the second terminal device, the transceiver 35 is specifically used for:

receiving, on the third BWP, N times of control information sent by the first terminal device, at least one of the N times of control information is in the second subchannel or the second resource pool, or received on the second dedicated resource, the first BWP is determined according to the second subchannel, or the second resource pool, or the second dedicated resource.

Optionally, the transceiver 35 is further configured to: receive the first data packet X times sent by the first terminal device, where X is a positive integer.

Optionally, the transceiver 35 is specifically configured to: receive the first data packet Y times on the second BWP, and receive the first data packet X-Y times on the first BWP, where Y is less than or A positive integer equal to X.

Optionally, the K is determined according to a first time M, and the first time M is a processing delay value of the first terminal device or a timing configured by the network device to the first terminal device value.

Optionally, the Y is determined according to a second time L, and the second time L is a processing delay value of the first terminal device or a timing configured by the network device to the first terminal device value.

Optionally, the K times of control information includes the resource information of the first data packet of the Y times; the K times of control information or the N-K times of control information includes the X-Y times of the first data packet. resource information.

Optionally, the first indication information is an identifier of the first bandwidth part.

In one design, an apparatus (eg, integrated circuit, wireless device, circuit module, network device, terminal, etc.) that receives control information may include a processor and a transceiver. If the apparatus is used in the steps or operations of the second terminal device in the above method embodiments, for example, the transceiver 35 may receive first indication information sent by the network device, where the first indication information is used to activate the first indication information. A bandwidth part BWP;

The processor 31 activates the first BWP according to the first indication information.

Optionally, the first indication information is carried in MIB message; or, the first indication information is carried in SIB message; or, the first indication information is carried in RRC signaling; or, the first indication information It is carried in MAC signaling; or, the first indication information is carried in DCI signaling.

Optionally, the first indication information includes at least one of an identifier of the apparatus, an identifier of a terminal device pair, and an identifier of a terminal device group, wherein the terminal device pair and the terminal device group include the the device.

Optionally, the transceiver 35 is also used for:

Receive configuration information sent by the network device, where the configuration information includes information of at least one bandwidth part configured by the network device.

Optionally, the configuration information includes at least one of an identifier of the apparatus, an identifier of a terminal device pair, and an identifier of a terminal device group, wherein the terminal device pair and the terminal device group include the device.

In one design, an apparatus for transmitting control information (eg, an integrated circuit, wireless device, circuit module, network device, terminal, etc.) may include a processor and a transceiver. If the apparatus is used in the steps or operations of the network device in the above method embodiments, for example, at least one bandwidth part BWP may be configured by the processor 31, and the at least one BWP includes the first BWP;

The transceiver 35 sends first indication information to the first terminal device and the second terminal device, where the first indication information is used to activate the first BWP.

Optionally, the first indication information is carried in MIB message; or, the first indication information is carried in SIB message; or, the first indication information is carried in RRC signaling; or, the first indication information It is carried in MAC signaling; or, the first indication information is carried in DCI signaling.

Optionally, the first indication information further includes at least one of an identifier of the first terminal device, an identifier of the second terminal device, an identifier of a terminal device pair, and an identifier of a terminal device group, wherein the The terminal device pair and the terminal device group include the first terminal device and the second terminal device.

Optionally, the transceiver 35 is also used for:

Sending configuration information to the first terminal device and the second terminal device, where the configuration information includes information of at least one bandwidth part configured by the network device.

Optionally, the configuration information includes at least one of an identifier of the first terminal device, an identifier of the second terminal device, an identifier of a terminal device pair, and an identifier of a terminal device group, wherein the terminal device pair And the terminal device group includes the first terminal device and the second terminal device.

The processors and transceivers described in this application may be implemented in integrated circuits (ICs), analog ICs, radio frequency integrated circuits (RFICs), mixed-signal ICs, application specific integrated circuits (ASICs), printed circuit boards (printed circuit boards) circuit board, PCB), electronic equipment, etc. The processor and transceiver can also be fabricated using various IC process technologies, such as complementary metal oxide semiconductor (CMOS), N-type metal-oxide-semiconductor (NMOS), P-type Metal oxide semiconductor (positive channel metal oxide semiconductor, PMOS), bipolar junction transistor (BJT), bipolar CMOS (BiCMOS), silicon germanium (SiGe), gallium arsenide (GaAs), etc.

Although in the description of the above embodiments, the communication apparatus 1000 is described by taking the AMF entity or the access network equipment or terminal as an example, the scope of the communication apparatus described in this application is not limited to the AMF entity or the access network equipment or terminal, Also, the structure of the communication device may not be limited by FIG. 11 . The communication apparatus may be a stand-alone device or may be part of a larger device. For example the device may be:

(1) Independent integrated circuit IC, or chip, or, chip system or subsystem;

(2) A set with one or more ICs, optionally, the IC set may also include storage components for storing data and/or instructions;

(3) ASIC, such as modem (MSM);

(4) Modules that can be embedded in other equipment;

(5) Receivers, terminals, cellular telephones, wireless devices, handsets, mobile units, network equipment, etc.;

(6) Others, etc.

It should be understood that, in the embodiments of the present application, "at least one" refers to one or more, and "a plurality" refers to two or more. "And/or", which describes the relationship of the associated objects, indicates that there can be three kinds of relationships, for example, A and/or B, it can indicate that A exists alone, A and B exist at the same time, and B exists alone, where A, B can be singular or plural. The character "/" generally indicates that the associated objects are an "or" relationship. "At least one item(s) below" or similar expressions thereof refer to any combination of these items, including any combination of single item(s) or plural items(s). For example, at least one item (a) of a, b, or c can represent: a, b, c, a-b, a-c, b-c, or a-b-c, where a, b, c may be single or multiple .

Those of ordinary skill in the art can realize that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Skilled artisans may implement the described functionality using different methods for each particular application, but such implementations should not be considered beyond the scope of this application.

Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working process of the above-described systems, devices and units may refer to the corresponding processes in the foregoing method embodiments, which will not be repeated here.

In the several embodiments provided in this application, it should be understood that the disclosed system, apparatus and method may be implemented in other manners. For example, the apparatus embodiments described above are only illustrative. For example, the division of the units is only a logical function division. In actual implementation, there may be other division methods. For example, multiple units or components may be combined or Can be integrated into another system, or some features can be ignored, or not implemented. On the other hand, the shown or discussed mutual coupling or direct coupling or communication connection may be through some interfaces, indirect coupling or communication connection of devices or units, and may be in electrical, mechanical or other forms.

The units described as separate components may or may not be physically separated, and components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution in this embodiment.

In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically alone, or two or more units may be integrated into one unit.

The functions, if implemented in the form of software functional units and sold or used as independent products, may be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application can be embodied in the form of a software product in essence, or the part that contributes to the prior art or the part of the technical solution. The computer software product is stored in a storage medium, including Several instructions are used to cause a computer device (which may be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of the present application. The aforementioned storage medium includes: U disk, removable hard disk, read-only memory (ROM), random access memory (RAM), magnetic disk or optical disk and other media that can store program codes .

The above are only specific embodiments of the present application, but the protection scope of the present application is not limited to this. should be covered within the scope of protection of this application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims (40)

1. A method for transmitting control information, comprising:

the first terminal device determines a first bandwidth portion BWP;

the first terminal device sends control information to a second terminal device for N times, wherein at least one time of the control information for N times includes first indication information, the first indication information is used for activating the first bandwidth part BWP, and N is a positive integer greater than or equal to 1.

2. The method of claim 1, wherein the first terminal device sends the control information to the second terminal device N times, and wherein the sending comprises:

the first terminal equipment sends K times of control information on a second BWP, and sends N-K times of control information on the first BWP;

at least one of the N times of control information includes first indication information including:

at least one of the K times of control information includes the first indication information, and K is a positive integer less than or equal to N.

3. The method of claim 1, wherein the first terminal device sends the control information to the second terminal device N times, and wherein the sending comprises:

and the first terminal device sends the control information to the second terminal device for N times on a third BWP, wherein the third BWP is one of at least two activated BWPs between the first terminal device and the second terminal device.

4. The method according to any of claims 1 to 3, wherein the control information further comprises resource information of the first data packet, the method further comprising:

and the first terminal equipment sends the first data packet to the second terminal equipment for X times, wherein X is a positive integer.

5. The method of claim 4, wherein the first terminal device sends the first packet to the second terminal device X times, and wherein the sending comprises:

and the first terminal equipment sends the first data packet for Y times on the second BWP and sends the first data packet for X-Y times on the first BWP, wherein Y is a positive integer less than or equal to X.

6. The method according to any one of claims 2 to 5, wherein the K times of control information includes Y times of resource information of the first packet; the K times of control information or the N-K times of control information includes resource information of the first packet X-Y times.

7. A method for transmitting control information, comprising:

the first terminal device determines a first bandwidth portion BWP;

the first terminal device sends control information to a second terminal device for N times, wherein at least one time of the control information in the N times of control information is sent on a first resource, N is a positive integer greater than or equal to 1, and the first resource is determined according to the first BWP.

8. The method of claim 7, wherein at least one of the N times of control information is sent on the first resource for deactivating a second BWP, and wherein the first resource is one of a first sub-channel on the second BWP, a first resource pool on the second BWP, or a first dedicated resource on the second BWP, the method comprising:

the first terminal device sends the N times of control information to a second terminal device, where at least one time of control information in the N times of control information is sent on the first subchannel, or the first resource pool, or the first dedicated resource, and the first subchannel, or the first resource pool, or the first dedicated resource is determined according to the first BWP.

9. The method according to claim 7 or 8, wherein the first terminal device sends the control information to the second terminal device N times, including:

the first terminal equipment sends K times of control information on a second BWP and sends N-K times of control information on the first BWP;

at least one of the N control information is sent on the first subchannel, or the first resource pool, or the first dedicated resource, and includes:

at least one of the K times of control information is transmitted on the first subchannel, or the first resource pool, or the first dedicated resource.

10. The method of claim 7, wherein the first resource is one of a second sub-channel on a third BWP, a second dedicated resource on a third BWP, or a second resource pool on a third BWP, and wherein the third BWP is one of at least two BWPs that have been activated between the first terminal device and the second terminal device, the method comprising:

the first terminal device sends the N times of control information to a second terminal device on the third BWP, where at least one of the N times of control information is sent on the second subchannel, or the second resource pool, or the second dedicated resource, and the second subchannel, or the second resource pool, or the second dedicated resource is determined according to the first BWP.

11. A method of receiving control information, comprising:

the second terminal device receives control information sent by the first terminal device for N times, wherein at least one time of the control information for N times comprises first indication information, the first indication information is used for activating the first bandwidth part BWP, and N is a positive integer greater than or equal to 1;

the second terminal device activates the first BWP according to the first indication information.

12. The method of claim 11, wherein the second terminal device receives N times of control information sent by the first terminal device, and comprises:

the second terminal device receives K times of control information on a second BWP and receives N-K times of control information on the first BWP;

at least one of the N times of control information includes first indication information including:

at least one of the K times of control information includes the first indication information, and K is a positive integer less than or equal to N.

13. The method of claim 11, wherein the second terminal device receives N times of control information sent by the first terminal device, and comprises:

and the second terminal device receives the N times of control information sent by the first terminal device at a third BWP, where the third BWP is one of at least two BWPs activated between the first terminal device and the second terminal device.

14. The method according to claim 12 or 13, wherein the control information further comprises resource information of the first data packet, the method further comprising:

and the second terminal equipment receives the first data packet sent by the first terminal equipment for X times, wherein X is a positive integer.

15. The method of claim 14, wherein the second terminal device receives the X first data packets sent by the first terminal device, and wherein the method comprises:

and the second terminal equipment receives the first data packet for Y times on the second BWP and receives the first data packet for X-Y times on the first BWP, wherein Y is a positive integer less than or equal to X.

16. The method according to any one of claims 12 to 15, wherein the K times of control information includes resource information of the Y times of the first packet; the K times of control information or the N-K times of control information includes resource information of the X-Y times of the first packet.

17. A method of receiving control information, comprising:

the method comprises the steps that a second terminal device receives N times of control information sent by a first terminal device, wherein at least one time of the N times of control information is received on a first resource, and N is a positive integer greater than or equal to 1;

the second terminal device determines to activate the first bandwidth part BWP in dependence on the first resource.

18. The method of claim 17, wherein at least one of the N times of control information is sent on the first resource for deactivating a second BWP, and wherein the first resource is one of a first sub-channel on the second BWP, a first resource pool on the second BWP, or a first dedicated resource on the second BWP, the method comprising:

the second terminal device receives the N times of control information sent by the first terminal device, where at least one time of the N times of control information is received on the first subchannel, or the first resource pool, or the first dedicated resource, and determines the first BWP according to the first subchannel, or the first resource pool, or the first dedicated resource.

19. The method of claim 17, wherein the second terminal device receives N times of control information sent by the first terminal device, and wherein the N times of control information comprises:

the second terminal device receives the control information sent by the first terminal device on a second BWP (broadband remote procedure) for K times, and receives the control information on the first BWP for N-K times;

at least one of the N times of control information is received on the first subchannel, or the first resource pool, or the first dedicated resource, including:

at least one of the K times of control information is received on the first subchannel, or the first resource pool, or the first dedicated resource.

20. The method of claim 17, wherein the first resource is one of a second sub-channel on a third BWP, a second resource pool on a third BWP, or a second dedicated resource on a third BWP, and wherein the third BWP is one of at least two BWPs that have been activated between the first terminal device and the second terminal device, the method comprising:

the second terminal device receives, on the third BWP, N times of control information sent by the first terminal device, where at least one of the N times of control information is received on the second subchannel, or the second resource pool, or the second dedicated resource, and determines the first BWP according to the second subchannel, or the second resource pool, or the second dedicated resource.

21. An apparatus for transmitting control information, comprising:

a processor for determining a first bandwidth portion BWP;

a transceiver configured to transmit control information to a second terminal device N times, where at least one of the N times of control information includes first indication information, where the first indication information is used to activate the first bandwidth part BWP, and N is a positive integer greater than or equal to 1.

22. The apparatus of claim 21, wherein the transceiver is specifically configured to:

transmitting control information K times at a second BWP, and transmitting control information N-K times at the first BWP;

at least one of the N times of control information includes first indication information including:

at least one of the K times of control information includes the first indication information, and K is a positive integer less than or equal to N.

23. The apparatus of claim 21, wherein the transceiver is specifically configured to:

and sending the control information to a second terminal device for N times on a third BWP, wherein the third BWP is one of at least two activated BWPs between the device and the second terminal device.

24. The apparatus according to any of claims 21 to 23, wherein the control information further comprises resource information of the first data packet, and wherein the transceiver is further configured to:

and sending the first data packet to the second terminal equipment for X times, wherein X is a positive integer.

25. The apparatus of claim 24, wherein the transceiver is further configured to:

and sending the first data packet on the second BWP for Y times, and sending the first data packet on the first BWP for X-Y times, wherein Y is a positive integer less than or equal to X.

26. The apparatus according to any one of claims 22 to 25, wherein the K times of control information comprises Y times of resource information of the first packet; the K times of control information or the N-K times of control information includes resource information of the first packet X-Y times.

27. An apparatus for transmitting control information, comprising:

a processor for determining a first bandwidth portion BWP;

a transceiver configured to transmit control information to a second terminal device N times, where at least one of the control information N times is transmitted on a first resource, N is a positive integer greater than or equal to 1, and the first resource is determined according to the first BWP.

28. The apparatus of claim 27, wherein at least one of the N times of control information is sent on the first resource further for deactivating a second BWP, wherein the first resource is one of a first sub-channel on the second BWP, a first resource pool on the second BWP, or a first dedicated resource on the second BWP, wherein the transceiver is further configured to:

sending control information to a second terminal device for N times, wherein at least one of the N times of control information is sent on the first subchannel, the first resource pool, or the first dedicated resource, and the first subchannel, the first resource pool, or the first dedicated resource is determined according to the first BWP.

29. The apparatus according to claim 27 or 28, wherein the transceiver is specifically configured to:

transmitting the control information K times on the second BWP, and transmitting the control information N-K times on the first BWP;

at least one of the N control information is sent on the first subchannel, or the first resource pool, or the first dedicated resource, and includes:

at least one of the K times of control information is transmitted on the first subchannel, or the first resource pool, or the first dedicated resource.

30. The apparatus of claim 27, wherein the first resource is one of a second sub-channel on a third BWP, a second dedicated resource on a third BWP, or a second dedicated resource pool on a third BWP, wherein the third BWP is one of at least two BWPs that have been activated between the first terminal device and the second terminal device, and wherein the transceiver is specifically configured to:

transmitting N times of control information to a second terminal device on the third BWP, at least one of the N times of control information being transmitted on the second subchannel, or the second resource pool, or the second dedicated resource, the second subchannel, or the second resource pool, or the second dedicated resource being determined according to the first BWP.

31. An apparatus for receiving control information, comprising:

a transceiver, configured to receive control information sent by a first terminal device N times, where at least one of the control information N times includes first indication information, where the first indication information is used to activate the first bandwidth part BWP, and N is a positive integer greater than or equal to 1;

a processor configured to activate the first BWP according to the first indication information.

32. The apparatus of claim 31, wherein the transceiver is specifically configured to:

receiving, by a second BWP, K times of control information, and N-K times of control information on the first BWP;

at least one of the N times of control information includes first indication information including:

at least one of the K times of control information includes the first indication information, and K is a positive integer less than or equal to N.

33. The apparatus of claim 31, wherein the transceiver is specifically configured to:

receiving the N times of control information at a third BWP, the third BWP being one of at least two BWPs that have been activated between the first terminal device and the apparatus.

34. The apparatus according to any of claims 31-33, wherein the control information further comprises resource information of the first data packet, and wherein the transceiver is further configured to:

and receiving the first data packet sent by the first terminal device for X times, wherein X is a positive integer.

35. The apparatus of claim 34, wherein the transceiver is specifically configured to:

receiving the first data packet Y times at the second BWP, and receiving the first data packet X-Y times at the first BWP, wherein Y is a positive integer less than or equal to X.

36. The apparatus according to any one of claims 32 to 35, wherein the K times of control information comprises Y times of resource information of the first packet; the K times of control information or the N-K times of control information includes resource information of the first packet X-Y times.

37. An apparatus for receiving control information, comprising:

the transceiver is used for receiving N times of control information sent by a first terminal device, wherein at least one time of the N times of control information is received on a first resource, and N is a positive integer greater than or equal to 1;

a processor for determining to activate a first bandwidth part BWP in dependence on the first resource.

38. The apparatus of claim 37, wherein at least one of the N times of control information is sent on the first resource further for deactivating a second BWP, wherein the first resource is one of a first sub-channel on the second BWP, a first resource pool on the second BWP, or a first dedicated resource on the second BWP, wherein the transceiver is further configured to:

receiving the N times of control information sent by the first terminal device, where at least one of the N times of control information is received on the first subchannel, or the first resource pool, or the first dedicated resource, and determining the first BWP according to the first subchannel, or the first resource pool, or the first dedicated resource.

39. The apparatus according to claim 37 or 38, wherein the transceiver is specifically configured to:

receiving K times of control information sent by the first terminal equipment on the second BWP, and receiving N-K times of control information on the first BWP;

at least one of the N times of control information is received on the first subchannel, or the first resource pool, or the first dedicated resource, including:

at least one of the K times of control information is received on the first subchannel, or the first resource pool, or the first dedicated resource.

40. The apparatus of claim 37, wherein the first resource is one of a second sub-channel on a third BWP, a second resource pool on a third BWP, or a second dedicated resource on a third BWP, wherein the third BWP is one of at least two BWPs that have been activated between the first terminal device and the apparatus, and wherein the transceiver is specifically configured to:

receiving, on the third BWP, N times of control information sent by the first terminal device, where at least one of the N times of control information is received on the second subchannel, or the second resource pool, or the second dedicated resource, and determining the first BWP according to the second subchannel, or the second resource pool, or the second dedicated resource.

Images