WO2020015679A1 - Csi reporting method, terminal, and network device - Google Patents

Abstract

Provided are a CSI reporting method, a terminal and a network device, relating to the technical field of communications, for solving the problem in the relevant art that a UE reports the wrong CSI because the UE cannot accurately learn about the number of BWPs currently activated by the network device. The method comprises: acquiring indication information, wherein the indication information is used for instructing the terminal to report the CSI corresponding to a first unit frequency resource; the first unit frequency resource comprises: all or some of the unit frequency resources activated by the terminal and/or all or some of the unit frequency resources deactivated by the terminal; and the unit frequency resource comprises: a bandwidth part (BWP) or a component carrier (CC); and reporting the CSI to a network device according to the indication information.

Description

CSI reporting method, terminal and network equipment

This application claims priority from Chinese patent applications filed on July 20, 2018 with the State Intellectual Property Office, application number 201810805940.6, and application name "A CSI Reporting Method, Terminal, and Network Equipment", the entire contents of which are incorporated by reference In this application.

Technical field

The present application relates to the field of communication technologies, and in particular, to a method, a terminal, and a network device for reporting channel state information (Channel State Information).

Background technique

In the 5G NR system, the network equipment will configure the available bandwidth part (BWP) set for each cell for the UE through radio resource control (RRC) signaling, and the dynamic switching needs to be initiated through L1 signaling. BWP, that is, when a network device activates a BWP, it will deactivate the currently activated BWP through L1 signaling. Generally, the activation / deactivation of the BWP is the activation / deactivation of the physical downlink control channel (Physical Downlink Control Channel, PDCCH).

In related technologies, when the UE reports the CSI of the activated and / or deactivated BWP, it will report based on the number of BWPs currently activated and / or deactivated by the network device. However, the L1 signaling used to activate and deactivate the BWP does not Stability, it is easy for the UE to lose the signaling, so that the UE cannot accurately know the number of BWPs currently activated by the network device, and then the UE reports wrong CSI.

For example, the network side has activated three BWPs for the UE, and the network side wants to further deactivate one of the BWPs. If the PDCCH deactivation signaling (that is, L1 signaling) is lost, the UE does not deactivate the BWP. At this time, the network side It will be understood that the UE has currently activated only 2 BWPs, that is, the UE will report the CSI corresponding to the 2 activated BWPs, however, in an actual scenario, the UE side will still report the CSI corresponding to the 3 activated BWPs.

Summary of the invention

Embodiments of the present invention provide a CSI reporting method, terminal, and network device, which are used to solve the problem in the related technology that the UE reports incorrect CSI because the UE cannot accurately know the number of BWPs currently activated by the network device.

In order to solve the above technical problems, this application is implemented as follows:

In a first aspect, an embodiment of the present invention provides a CSI reporting method, which is applied to a terminal. The method includes:

Acquiring instruction information; wherein the instruction information is used to instruct the terminal to report a CSI corresponding to a first unit frequency resource; the first unit frequency resource includes: all or part of the unit frequency resource activated by the terminal and / or all All or part of the unit frequency resources deactivated by the terminal; the unit frequency resources include: BWP or carrier unit (Component Carrier, CC);

Reporting the CSI to a network device according to the instruction information.

In a second aspect, an embodiment of the present invention provides a CSI reporting method, which is applied to a network device. The method includes:

Sending instruction information to the terminal;

The instruction information is used to instruct the terminal to report the CSI corresponding to the first unit frequency resource; the instruction information is further used to instruct the terminal to report the CSI to the network device according to the instruction information; the The first unit frequency resource includes: all or part of the unit frequency resource activated by the terminal and / or all or part of the unit frequency resource deactivated by the terminal; the unit frequency resource includes: BWP or CC;

Receiving the CSI sent by the terminal.

According to a third aspect, an embodiment of the present invention provides a terminal, including:

An obtaining module, configured to obtain instruction information; wherein the instruction information is used to instruct the terminal to report a CSI corresponding to a first unit frequency resource; the first unit frequency resource includes all or part of a unit frequency activated by the terminal Resources and / or all or part of the unit frequency resources deactivated by the terminal; the unit frequency resources include: BWP or CC;

A reporting module, configured to report the CSI to a network device according to the instruction information obtained by the obtaining module.

In a fourth aspect, an embodiment of the present invention provides a network device, including:

A sending module, configured to send instruction information to the terminal;

The instruction information is used to instruct the terminal to report the CSI corresponding to the first unit frequency resource; the instruction information is further used to instruct the terminal to report the CSI to the network device according to the instruction information; the The first unit frequency resource includes: all or part of the unit frequency resource activated by the terminal and / or all or part of the unit frequency resource deactivated by the terminal; the unit frequency resource includes: BWP or CC;

A receiving module, configured to receive CSI sent by the terminal.

According to a fifth aspect, an embodiment of the present invention provides a terminal, including a processor, a memory, and a computer program stored on the memory and executable on the processor. When the computer program is executed by the processor, Steps of implementing the CSI reporting method according to the first aspect.

According to a sixth aspect, an embodiment of the present invention provides a network device, including a processor, a memory, and a computer program stored on the memory and executable on the processor. When the computer program is executed by the processor, Steps of implementing the CSI reporting method according to the second aspect.

In a seventh aspect, an embodiment of the present invention provides a computer-readable storage medium. A computer program is stored on the computer-readable storage medium, and when the computer program is executed by a processor, the steps of the CSI reporting method are implemented.

In the embodiment of the present invention, the network device sends instruction information to the terminal to instruct the terminal to report the CSI corresponding to the first unit frequency resource to the network device. Because the first unit frequency resource includes all or part of the unit frequency resource activated by the terminal and And / or all or part of the unit frequency resources deactivated by the terminal, thereby ensuring that the terminal can report the CSI flexibly and accurately, that is, accurately report the activated and / or deactivated CSI corresponding to the BWP.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a schematic diagram of a possible structure of a communication system according to an embodiment of the present invention; FIG.

FIG. 2 is a first flowchart of a CSI reporting method according to an embodiment of the present invention; FIG.

3 is a second schematic flowchart of a CSI reporting method according to an embodiment of the present invention;

4 is a third flowchart of a CSI reporting method according to an embodiment of the present invention;

FIG. 5 is a fourth flowchart of a CSI reporting method according to an embodiment of the present invention; FIG.

FIG. 6 is a first schematic structural diagram of a terminal according to an embodiment of the present invention; FIG.

FIG. 7 is a first schematic structural diagram of a network device according to an embodiment of the present invention; FIG.

FIG. 8 is a second schematic structural diagram of a terminal according to an embodiment of the present invention; FIG.

FIG. 9 is a second schematic structural diagram of a network device according to an embodiment of the present invention.

detailed description

In the following, the technical solutions in the embodiments of the present invention will be clearly and completely described with reference to the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.

The technical solution provided in this application can be applied to various communication systems, for example, a 5G communication system, a future evolution system, or a variety of communication convergence systems. Can include a variety of application scenarios, such as machine-to-machine (M2M), D2M, macro communication, enhanced mobile Internet (eMBB), ultra-high reliability and ultra-low-latency communication (ultra Reliable & Low Latency (Communication, uRLLC) and Massive Machine Type Communication (mMTC) and other scenarios. These scenarios include, but are not limited to, scenarios such as communication between a terminal and a terminal, or communication between a network device and a network device, or communication between a network device and a terminal. The embodiments of the present invention can be applied to communication with a network device and a terminal in a 5G communication system, or communication between a terminal and a terminal, or communication between a network device and a network device.

FIG. 1 shows a schematic diagram of a possible structure of a communication system according to an embodiment of the present invention. As shown in FIG. 1, the communication system includes at least one network device 100 (only one is shown in FIG. 1) and one or more terminals 200 to which each network device 100 is connected.

The network device 100 may be a base station, a core network device, a transmission and reception node (Transmission and Reception Point, TRP), a relay station, or an access point. The network device 100 may be a Global System for Mobile Communication (GSM) or a Code Division Multiple Access (CDMA) network, or a base transceiver station (BTS), or a broadband NB (NodeB) in Wideband Code Division Multiple Access (WCDMA) can also be eNB or eNodeB (evolutional NodeB) in LTE. The network device 100 may also be a wireless controller in a Cloud Radio Access Network (CRAN) scenario. The network device 100 may also be a network device in a 5G communication system or a network device in a future evolved network. However, the wording does not constitute a limitation on this application.

The terminal 200 may be a wireless terminal or a wired terminal. The wireless terminal may be a device that provides voice and / or other business data connectivity to the user, a handheld device with a wireless communication function, a computing device, or other processing connected to a wireless modem. Devices, vehicle-mounted devices, wearable devices, terminals in future 5G networks, or terminals in future evolved PLMN networks. A wireless terminal can communicate with one or more core networks via a Radio Access Network (RAN). The wireless terminal can be a mobile terminal, such as a mobile phone (or a "cellular" phone) and a computer with a mobile terminal For example, it can be a portable, compact, handheld, computer-built or vehicle-mounted mobile device that exchanges language and / or data with the wireless access network, as well as personal communication service (PCS) phones, cordless phones , Session Initiation Protocol (SIP) phones, Wireless Local Loop (WLL) stations, Personal Digital Assistants (PDAs) and other devices. Wireless terminals can also be mobile devices, user devices ( User (Equipment, UE), UE terminal, access terminal, wireless communication equipment, terminal unit, terminal station, mobile station, mobile station, remote station, remote station, remote terminal Terminal), Subscriber Unit, Subscriber Station, User Agent (User Agent), terminal device, etc. As an example, in the embodiment of the present invention, FIG. 1 illustrates that the terminal is a mobile phone.

The term "and / or" in this document is only a kind of association relationship describing related objects, which means that there can be three kinds of relationships. For example, A and / or B can mean: A exists alone, A and B exist simultaneously, and it exists alone. B these three cases. In addition, the character "/" in this article generally indicates that the related objects are an "or" relationship; in the formula, the character "/" indicates that the related objects are a "divide" relationship. If not specified, "a plurality" herein means two or more.

In order to facilitate a clear description of the technical solutions of the embodiments of the present invention, in the embodiments of the present invention, the words "first" and "second" are used to distinguish the same or similar items having substantially the same functions or functions. The skilled person can understand that the words "first" and "second" do not limit the quantity and execution order.

In the embodiments of the present invention, words such as “exemplary” or “such as” are used as examples, illustrations or descriptions. Any embodiment or design described as "exemplary" or "for example" in the embodiments of the present invention should not be construed as more preferred or more advantageous than other embodiments or designs. Rather, the use of the words "exemplary" or "for example" is intended to present the relevant concept in a concrete manner.

In the embodiments of the present invention, unless otherwise stated, the meaning of "a plurality" means two or more.

FIG. 2 is a schematic flowchart of a CSI reporting method according to an embodiment of the present invention. As shown in FIG. 2, the CSI reporting method may include:

Step 201: The terminal obtains the instruction information.

In the embodiment of the present invention, the foregoing indication information is used to instruct the terminal to report the CSI corresponding to the first unit frequency resource. The above-mentioned first unit frequency resource includes all or part of the unit frequency resource activated by the terminal and / or all or part of the unit frequency resource deactivated by the terminal. The above-mentioned unit frequency resources include: BWP or CC. The above CC is a CC aggregated by a CA.

It should be noted that the above-mentioned first unit frequency resource may be related to the unit frequency resource activated by the network device, or may be unrelated to the unit frequency resource activated by the network device, which is not limited in this application.

Example 1: The network device has activated three BWPs: BWP1, BWP2, and BWP3, and the network device wants to further deactivate BWP3. If L1 signaling is lost, the terminal does not deactivate BWP3, that is, the BWP activated by the terminal remains BWP1 , BWP2, BWP3. At this time, if the network device sends instruction information to the terminal to instruct the terminal to report the CSI corresponding to BWP1 and BWP2, the terminal can report the CSI of BWP1 and BWP2.

Example 2: Before activating the three BWPs BWP1, BWP2, and BWP3, the network device may send instructions to the terminal in advance to instruct the terminal to report the CSI of the three BWPs BWP1, BWP2, and BWP3. If the terminal has only activated BWP1 at this time, BWP2, and BWP3 is deactivated, the terminal may report CSI for activating BWP1, BWP2, and deactivating BWP3.

Optionally, in the embodiment of the present invention, the foregoing indication information is specifically used to indicate the number N of the first unit frequency resource and / or the first unit frequency resource; N is a positive integer greater than or equal to 1.

Optionally, in the embodiment of the present invention, the foregoing indication information includes at least one of the following: an identifier of the first unit frequency resource (for example, an index of a BWP or an index of a CC), the number N of the first unit frequency resource, and A group identifier of a unit frequency resource group; wherein N is a positive integer greater than or equal to 1, and the above-mentioned unit frequency resource group includes a first unit frequency resource.

It should be noted that the above-mentioned unit frequency resource group (ie, CC group or BWP group) may be configured by the network device to the terminal (for example, the network device is configured to the terminal by using RRC signaling), or it may be predefined (for example, Agreement). That is, the network device can configure which BWPs or CCs 'BWPs belong to a group, or which BWPs or CCs' BWPs belong to a group in advance.

Step 202: The terminal reports the CSI corresponding to the first unit frequency resource to the network device according to the instruction information.

Optionally, in the embodiment of the present invention, the above-mentioned step 201 may be implemented in at least the following three ways.

The first way:

Exemplarily, the above step 201 specifically includes the following steps:

Step 201a: The terminal receives instruction information sent by the network device to the terminal.

Correspondingly, the peer network device sends instruction information to the terminal. At this time, the foregoing instruction information is specifically used to instruct the terminal to report the CSI to the network device according to the instruction information.

The network device in the embodiment of the present invention may be a network device in the communication system shown in FIG. 1, for example, a base station; the terminal in the embodiment of the present invention may be a terminal in the communication system shown in FIG. 1.

The second way:

Exemplarily, as shown in FIG. 3, the foregoing step 201 specifically includes the following steps:

Step 201b1: The network device sends a PDCCH to the terminal.

Step 201b2: The terminal decodes the PDCCH obtained by the terminal, and obtains the indication information carried in the PDCCH.

Exemplarily, for the aperiodic CQI reporting, the network device may directly carry indication information in the PDCCH to instruct the terminal to report the CSI corresponding to the first unit frequency resource. For example, the network device directly instructs the terminal to report the CSI of BWP1, BWP2, and BWP3 in the PDCCH. After the terminal monitors the PDCCH, the terminal can decode the PDCCH to obtain the indication information, thereby reporting the CSI of BWP1, BWP2, and BWP3.

The third way:

In the embodiment of the present invention, the foregoing indication information may be carried in an RRC signaling or a Media Access Control Entity (Media Access Control CE, MAC CE).

Example 3: When a network device activates three BWPs or CCs, the network device configures the terminal to report the CSI of only three BWPs or CCs through RRC signaling.

Exemplarily, in the embodiment of the present invention, the activation of the CSI report may be performed separately from the activation of the BWP or CC. Specifically, when the PDCCH is used to activate / deactivate the BWP or CC, the CSI reporting at this time no longer depends on the activation / deactivation of the BWP or CC. Wherein, the activation / deactivation of the BWP or CC indicates: whether to monitor the PDCCH on the BWP, whether to receive PDSCH on the BWP or CC, and whether to send PUSCH on the BWP or CC. At this time, if CSI needs to be sent, MAC reporting can be used to activate CSI reporting.

Example 4: In a scenario where a network device activates 5 BWPs through a PDCCH, if the CSI of the 5 BWPs has not been activated, the network device will further send instruction information through the MAC CE, and the instruction information is a BWP CSI activation command instruction. It is used to instruct the terminal to activate CSI transmission of all or part of the 5 BWPs, to instruct the terminal to activate transmission of CSI of all or part of the BWPs within the specified time.

For example, the instruction information is used to instruct the transmission of CSI for activating BWP1, BWP2, and BWP3. After receiving the instruction information, the terminal activates the transmission of CSI for BWP1, BWP2, and BWP3 within a specified time according to the instruction of the instruction information. .

Fourth implementation:

Exemplarily, as shown in FIG. 4, in the embodiment of the present invention, the above step 201 specifically includes the following steps:

Step 201c1: The network device sends a PDCCH to the terminal on the first BWP according to a second predetermined rule.

Step 201c2: The terminal decodes the PDCCH obtained by the terminal, and obtains indication information.

In the embodiment of the present invention, the foregoing indication information is information of a first BWP where a terminal or a PDCCH is located. The first BWP mentioned above is a BWP activated by a network device or a BWP in a CC.

Optionally, in the embodiment of the present invention, the above step 202 may be implemented in at least two ways as follows.

The first way:

Exemplarily, as shown in FIG. 5, in the embodiment of the present invention, in a scenario where the foregoing indication information is specifically used to indicate the number N of the first unit frequency resources, the foregoing step 202 specifically includes the following steps:

Step 202a: The terminal reports the CSI corresponding to the first unit frequency resource to the network device according to the instruction information and the first predetermined rule.

Wherein, the above-mentioned first predetermined rule includes at least one of the following: a unit frequency resource before the channel quality ranking N and a unit frequency resource before the number ranking of the unit frequency resource.

Exemplarily, the network device indicates to the terminal the number of BWPs or CCs currently activated by the terminal by using the indication information, and the terminal may determine which BWPs or CCs are currently activated by the terminal according to the first predetermined rule. For example, the network device configures the terminal to report the CSI of only three BWPs through the RRC message. In this way, the terminal will not understand the PUCCH format error. Further, the specific three BWPs activated by the network device can be defined by multiple rules. For example, the 3 best channel instructions, or the 3 largest BWP index, or some special BWP (for example, first BWP, or default or primary BWP, etc.).

Further, in the embodiment of the present invention, the above-mentioned first predetermined rule is configured by the network device to the terminal (for example, the network device is configured to the terminal by using RRC signaling), or is predefined (for example, stipulated by a protocol).

It should be noted that this implementation manner may be combined with at least one of the four implementation manners of step 201 described above, which is not limited in the embodiment of the present invention.

The second way:

Exemplarily, as shown in FIG. 4, in the embodiment of the present invention, in combination with the content in step 201c1 and step 201c2 described above, the above step 202 specifically includes the following steps:

Step 202c: The terminal reports the CSI corresponding to the first unit frequency resource to the network device according to the instruction information and the second predetermined rule.

In the embodiment of the present invention, when the above-mentioned first unit frequency resource is a BWP, the above-mentioned second predetermined rule includes at least one of the following: the first unit frequency resource is a first BWP, and the first unit frequency resource is an AND The BWP in the second BWP or BWP group corresponding to the first BWP; or when the above-mentioned first unit frequency resource is CC, the above-mentioned second predetermined rule includes at least one of the following: the first unit frequency resource Is the first BWP, and the first unit frequency resource is a first CC or a CC in a CC group that has a corresponding relationship with the first BWP.

Further, in the embodiment of the present invention, the second predetermined rule is configured by the network device to the terminal (for example, the network device is configured to the terminal by using RRC signaling), or is predefined (for example, stipulated by a protocol).

The third way:

Exemplarily, in an example, when the first unit frequency resource includes at least one unit frequency resource activated by the terminal, the above step 202 specifically includes the following content:

Step 202d: The terminal reports the CSI corresponding to all the first unit frequency resources to the network device according to the instruction information.

For example, if the network device sends instruction information to the terminal to instruct the terminal to report the CSI of the three BWPs: BWP1, BWP2, and BWP3. When the terminal receives the instruction information, the terminal activates BWP1 and deactivates BWP2 and BWP3, the terminal will report the CSI for activating BWP1 and deactivating BWP2 and BWP3.

In addition, it should be noted that when the first unit frequency resource is a unit frequency resource deactivated by the terminal, the terminal does not report the CSI to the network device.

It should be noted that this implementation manner may be combined with at least one of the four implementation manners of step 201 described above, which is not limited in the embodiment of the present invention.

In the CSI reporting method provided by the embodiment of the present invention, a network device sends instruction information to a terminal to instruct the terminal to report the CSI corresponding to the first unit frequency resource to the network device. Because the first unit frequency resource includes all or part of the units activated by the terminal Frequency resources and / or all or part of the unit frequency resources deactivated by the terminal, thereby ensuring that the terminal can flexibly and accurately report CSI, that is, accurately report activation and / or deactivation of the CSI corresponding to the BWP.

FIG. 6 provides a terminal 300 for implementing the embodiment of the present invention. As shown in FIG. 6, the terminal device 300 includes: an obtaining module 301 and a reporting module 302, where:

The obtaining module 301 is configured to obtain instruction information. The foregoing instruction information is used to instruct the terminal to report the CSI corresponding to the first unit frequency resource. The first unit frequency resource includes: all or part of the unit frequency resources activated by the terminal and / Or all or part of the unit frequency resources deactivated by the terminal; the above-mentioned unit frequency resources include: BWP or CC.

The reporting module 302 is configured to report the CSI to the network device according to the instruction information obtained by the obtaining module 301.

Optionally, the foregoing indication information is specifically used to indicate the number N of the first unit frequency resource and / or the first unit frequency resource; N is a positive integer greater than or equal to 1.

Optionally, the foregoing indication information is specifically used to indicate the number N of the first unit frequency resources; the reporting module 302 is specifically configured to: report the CSI to the network device according to the indication information obtained by the obtaining module 301 and a first predetermined rule. The first predetermined rule mentioned above includes at least one of the following: the first unit frequency resource is a unit frequency resource before the channel quality ranking N, and the first unit frequency resource is a unit frequency resource before the number ranking of the unit frequency resource.

Optionally, the foregoing first predetermined rule is configured by the network device to the terminal or is predefined.

Optionally, the foregoing obtaining module 301 is specifically configured to: receive instruction information sent by a network device to a terminal.

Optionally, the foregoing obtaining module 301 is specifically configured to decode the PDCCH obtained by the terminal, and obtain the indication information carried in the PDCCH.

Optionally, the foregoing instruction information is carried on the MAC CE.

Optionally, the foregoing obtaining module 301 is specifically configured to decode the downlink control channel PDCCH obtained by the terminal to obtain indication information; wherein, the foregoing indication information is information of a first BWP where the PDCCH is located; the first BWP is a network The BWP activated by the device or the BWP in the CC; the above-mentioned reporting module 302 is specifically configured to report the CSI to the network device according to the instruction information acquired by the acquisition module and the second predetermined rule.

When the first unit frequency resource is a BWP, the above-mentioned second predetermined rule includes at least one of the following: the first unit frequency resource is a first BWP, and the first unit frequency resource has a corresponding relationship with the first BWP. The second BWP or the BWP in the BWP group; or when the first unit frequency resource is CC, the second predetermined rule includes at least one of the following: the first unit frequency resource is the first BWP and the first unit frequency The resource is a first CC or a CC in a CC group that has a corresponding relationship with the first BWP.

Optionally, the above-mentioned second predetermined rule is configured by the network device to the terminal or is predefined.

Optionally, the foregoing indication information includes at least one of the following: an identifier of the first unit frequency resource, a number N of the first unit frequency resource, and a group identifier of the unit frequency resource group; where N is a positive integer greater than or equal to 1. The unit frequency resource group includes a first unit frequency resource.

Optionally, when the first unit frequency resource includes at least one unit frequency resource activated by the terminal, the reporting module 302 is specifically configured to report, to the network device, all the corresponding first unit frequency resources corresponding to the first unit frequency resource. CSI.

In the terminal provided by the embodiment of the present invention, the terminal receives the instruction information sent by the network device, and reports the CSI corresponding to the first unit frequency resource to the network device according to the instruction information. Because the first unit frequency resource includes all or Part of the unit frequency resource and / or all or part of the unit frequency resource deactivated by the terminal, thereby ensuring that the terminal can flexibly and accurately report CSI, that is, accurately report activation and / or deactivation of the CSI corresponding to the BWP.

The terminal device provided by the embodiment of the present invention can implement the process shown in any one of the foregoing method embodiments in FIG. 2 to FIG. 5. To avoid repetition, details are not described herein again.

FIG. 7 is a schematic diagram of a hardware structure of a network device that implements an embodiment of the present invention. As shown in FIG. 7, the network device 400 includes a sending module 401 and a receiving module 402, where:

The sending module 401 is configured to send instruction information to a terminal.

The above instruction information is used to instruct the terminal to report the CSI corresponding to the first unit frequency resource; the above instruction information is also used to instruct the terminal to report the CSI to the network device according to the instruction information; the first unit frequency resource includes: All or part of the unit frequency resources and / or all or part of the unit frequency resources deactivated by the terminal; the above-mentioned unit frequency resources include: BWP or CC.

The receiving module 402 is configured to receive CSI sent by a terminal.

Optionally, the foregoing indication information is specifically used to indicate the number N of the first unit frequency resource and / or the first unit frequency resource; N is a positive integer greater than or equal to 1.

Optionally, the foregoing sending module 401 is specifically configured to: send a downlink control channel PDCCH to the terminal; wherein, the foregoing indication information is carried in the PDCCH.

Optionally, the sending module 401 is specifically configured to send a downlink control channel PDCCH to the terminal on the first BWP according to a second predetermined rule; wherein the first BWP is a BWP activated by a network device or a BWP in a CC. When the first unit frequency resource is a BWP, the above-mentioned second predetermined rule includes at least one of the following: the first unit frequency resource is a first BWP, and the first unit frequency resource is a first resource having a corresponding relationship with the first BWP. Two BWPs or BWPs in a BWP group; or when the first unit frequency resource is CC, the above-mentioned second predetermined rule includes at least one of the following: the first unit frequency resource is the first BWP, and the first unit frequency resource A CC in the first CC or CC group that has a corresponding relationship with the first BWP.

Optionally, the above-mentioned second predetermined rule is configured by the network device to the terminal or is predefined.

Optionally, the foregoing instruction information is carried on the MAC CE.

Optionally, the foregoing indication information includes at least one of the following: an identifier of the first unit frequency resource, a number N of the first unit frequency resource, and a group identifier of the unit frequency resource group; where N is a positive integer greater than or equal to 1. The unit frequency resource group includes a first unit frequency resource.

According to the network device provided in the embodiment of the present invention, the network device sends instruction information to the terminal to instruct the terminal to report the CSI corresponding to the first unit frequency resource to the network device. Because the first unit frequency resource includes all or part of the unit frequency activated by the terminal Resources and / or all or part of the unit frequency resources deactivated by the terminal, thereby ensuring that the terminal can report the CSI flexibly and accurately, that is, accurately report the activated and / or deactivated CSI corresponding to the BWP.

The terminal provided by the embodiment of the present invention can implement the process shown in any one of the foregoing method embodiments in FIG. 2 to FIG. 5. To avoid repetition, details are not described herein again.

FIG. 8 is a schematic diagram of a hardware structure of a terminal implementing various embodiments of the present invention. The terminal 100 includes, but is not limited to, a radio frequency unit 101, a network module 102, an audio output unit 103, an input unit 104, a sensor 105, a display unit 106, The user input unit 107, the interface unit 108, the memory 109, the processor 110, and the power supply 111 and other components. Those skilled in the art can understand that the structure of the terminal 100 shown in FIG. 8 does not constitute a limitation on the terminal. The terminal 100 may include more or fewer components than shown in the figure, or combine some components or different components. Layout. In the embodiment of the present invention, the terminal 100 includes, but is not limited to, a mobile phone, a tablet computer, a notebook computer, a palmtop computer, a car terminal, a wearable device, and a pedometer.

The processor 110 is configured to obtain instruction information. The foregoing instruction information is used to instruct the terminal to report the CSI corresponding to the first unit frequency resource. The first unit frequency resource is all or part of the unit frequency resource activated by the terminal and / Or all or part of the unit frequency resources deactivated by the terminal; the unit frequency resources include: BWP or CC; the radio frequency unit 101 is configured to report CSI to the network device according to the instruction information.

In the terminal provided by the embodiment of the present invention, the terminal receives the instruction information sent by the network device, and reports the CSI corresponding to the first unit frequency resource to the network device according to the instruction information. Because the first unit frequency resource includes all or Part of the unit frequency resource and / or all or part of the unit frequency resource deactivated by the terminal, thereby ensuring that the terminal can flexibly and accurately report CSI, that is, accurately report activation and / or deactivation of the CSI corresponding to the BWP.

It should be understood that, in the embodiment of the present invention, the radio frequency unit 101 may be used to receive and send signals during the transmission and reception of information or during a call. Specifically, the downlink data from the base station is received and processed by the processor 110; The uplink data is sent to the base station. Generally, the radio frequency unit 101 includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, and the like. In addition, the radio frequency unit 101 can also communicate with a network and other devices through a wireless communication system.

The terminal 100 provides users with wireless broadband Internet access through the network module 102, such as helping users to send and receive email, browse web pages, and access streaming media.

The audio output unit 103 may convert audio data received by the radio frequency unit 101 or the network module 102 or stored in the memory 109 into audio signals and output them as sound. Moreover, the audio output unit 103 may also provide audio output (for example, call signal reception sound, message reception sound, etc.) related to a specific function performed by the terminal 100. The audio output unit 103 includes a speaker, a buzzer, a receiver, and the like.

The input unit 104 is used for receiving audio or video signals. The input unit 104 may include a graphics processing unit (GPU) 1041 and a microphone 1042. The graphics processor 1041 pairs images of still pictures or videos obtained by an image capture device (such as a camera) in a video capture mode or an image capture mode. Data is processed. The processed image frames may be displayed on the display unit 106. The image frames processed by the graphics processor 1041 may be stored in the memory 109 (or other storage medium) or transmitted via the radio frequency unit 101 or the network module 102. The microphone 1042 can receive sound, and can process such sound into audio data. The processed audio data can be converted into a format that can be transmitted to a mobile communication base station via the radio frequency unit 101 in the case of a telephone call mode and output.

The terminal 100 further includes at least one sensor 105, such as a light sensor, a motion sensor, and other sensors. Specifically, the light sensor includes an ambient light sensor and a proximity sensor. The ambient light sensor can adjust the brightness of the display panel 1061 according to the brightness of the ambient light. The proximity sensor can close the display panel 1061 and / when the terminal 100 moves to the ear. Or backlight. As a type of motion sensor, an accelerometer sensor can detect the magnitude of acceleration in various directions (usually three axes). It can detect the magnitude and direction of gravity when it is stationary, and can be used to identify the attitude of the terminal (such as horizontal and vertical screen switching, related games, Magnetometer attitude calibration), vibration recognition related functions (such as pedometer, tap), etc .; sensor 105 can also include fingerprint sensor, pressure sensor, iris sensor, molecular sensor, gyroscope, barometer, hygrometer, thermometer, infrared The sensors and the like are not repeated here.

The display unit 106 is configured to display information input by the user or information provided to the user. The display unit 106 may include a display panel 1061, and the display panel 1061 may be configured in the form of a liquid crystal display (LCD), an organic light-emitting diode (OLED), or the like.

The user input unit 107 may be configured to receive inputted numeric or character information, and generate key signal inputs related to user settings and function control of the terminal 100. Specifically, the user input unit 107 includes a touch panel 1071 and other input devices 1072. Touch panel 1071, also known as touch screen, can collect user's touch operations on or near it (such as the user using a finger, stylus, etc. any suitable object or accessory on touch panel 1071 or near touch panel 1071 operating). The touch panel 1071 may include two parts, a touch detection device and a touch controller. Among them, the touch detection device detects the user's touch position, and detects the signal caused by the touch operation, and transmits the signal to the touch controller; the touch controller receives touch information from the touch detection device, converts it into contact coordinates, and sends it The processor 110 receives and executes a command sent by the processor 110. In addition, various types such as resistive, capacitive, infrared, and surface acoustic wave can be used to implement the touch panel 1071. In addition to the touch panel 1071, the user input unit 107 may also include other input devices 1072. Specifically, other input devices 1072 may include, but are not limited to, a physical keyboard, function keys (such as volume control keys, switch keys, etc.), a trackball, a mouse, and a joystick, and details are not described herein again.

Further, the touch panel 1071 may be overlaid on the display panel 1061. When the touch panel 1071 detects a touch operation on or near the touch panel 1071, the touch panel 1071 transmits the touch operation to the processor 110 to determine the type of the touch event. The type of event provides a corresponding visual output on the display panel 1061. Although in FIG. 8, the touch panel 1071 and the display panel 1061 are implemented as two independent components to implement the input and output functions of the terminal 100, in some embodiments, the touch panel 1071 and the display panel 1061 may be integrated. The implementation of the input and output functions of the terminal 100 is not specifically limited here.

The interface unit 108 is an interface through which an external device is connected to the terminal 100. For example, the external device may include a wired or wireless headset port, an external power (or battery charger) port, a wired or wireless data port, a memory card port, a port for connecting a device with an identification module, and audio input / output (I / O) port, video I / O port, headphone port, and more. The interface unit 108 may be used to receive input (e.g., data information, power, etc.) from an external device and transmit the received input to one or more elements within the terminal 100 or may be used to communicate between the terminal 100 and an external device. Transfer data.

The memory 109 may be used to store software programs and various data. The memory 109 may mainly include a storage program area and a storage data area, where the storage program area may store an operating system, at least one application required by a function (such as a sound playback function, an image playback function, etc.), etc .; the storage data area may store data according to Data (such as audio data, phone book, etc.) created by the use of mobile phones. In addition, the memory 109 may include a high-speed random access memory, and may further include a non-volatile memory, such as at least one magnetic disk storage device, a flash memory device, or other volatile solid-state storage devices.

The processor 110 is a control center of the terminal 100, and uses various interfaces and lines to connect various parts of the entire terminal 100. By running or executing software programs and / or modules stored in the memory 109, and calling data stored in the memory 109, , Execute various functions of the terminal 100 and process data, so as to monitor the terminal 100 as a whole. The processor 110 may include one or more processing units; optionally, the processor 110 may integrate an application processor and a modem processor, wherein the application processor mainly processes an operating system, a user interface, and an application program, etc. The tuning processor mainly handles wireless communication. It can be understood that the foregoing modem processor may not be integrated into the processor 110.

The terminal 100 may further include a power source 111 (such as a battery) for supplying power to various components. Optionally, the power source 111 may be logically connected to the processor 110 through a power management system, so as to manage charging, discharging, and power consumption management through the power management system. And other functions.

In addition, the terminal 100 includes some functional modules that are not shown, and details are not described herein again.

FIG. 9 is a schematic diagram showing a hardware structure of a network device according to an embodiment of the present invention. The network device 800 includes a processor 801, a transceiver 802, a memory 803, a user interface 804, and a bus interface.

The transceiver 802 is configured to send instruction information to the terminal. The instruction information is used to instruct the terminal to report the CSI corresponding to the first unit frequency resource. The instruction information is also used to instruct the terminal to report the information to the network device according to the instruction information. CSI; the first unit frequency resource includes: all or part of the unit frequency resource activated by the terminal and / or all or part of the unit frequency resource deactivated by the terminal; the unit frequency resource includes: BWP or CC; the transceiver 802 is also used for receiving The CSI sent by the terminal.

According to the network device provided in the embodiment of the present invention, the network device sends instruction information to the terminal to instruct the terminal to report the CSI corresponding to the first unit frequency resource to the network device. Because the first unit frequency resource includes all or part of the unit frequency activated by the terminal Resources and / or all or part of the unit frequency resources deactivated by the terminal, thereby ensuring that the terminal can report the CSI flexibly and accurately, that is, accurately report the activated and / or deactivated CSI corresponding to the BWP.

In the embodiment of the present invention, in FIG. 9, the bus architecture may include any number of interconnected buses and bridges. Specifically, one or more processors represented by the processor 801 and various circuits of the memory represented by the memory 803 are linked together. . The bus architecture can also link various other circuits such as peripherals, voltage regulators, and power management circuits, which are well known in the art, so they are not described further herein. The bus interface provides an interface. The transceiver 802 may be multiple elements, including a transmitter and a receiver, providing a unit for communicating with various other devices over a transmission medium. For different user devices, the user interface 804 may also be an interface capable of externally connecting and connecting the required devices. The connected devices include but are not limited to a keypad, a display, a speaker, a microphone, a joystick, and the like. The processor 801 is responsible for managing the bus architecture and general processing, and the memory 803 may store data used by the processor 801 when performing operations.

In addition, the network device 800 also includes some functional modules that are not shown, and details are not described herein again.

Optionally, an embodiment of the present invention further provides a terminal device including a processor, a memory, and a computer program stored in the memory and executable on the processor. When the computer program is executed by the processor, the first embodiment is implemented. The process of the CSI reporting method can achieve the same technical effect. To avoid repetition, details are not repeated here.

Optionally, an embodiment of the present invention further provides a network device, including a processor, a memory, and a computer program stored on the memory and executable on the processor. When the computer program is executed by the processor, the foregoing embodiments are implemented. The process of the CSI reporting method can achieve the same technical effect. To avoid repetition, it will not be repeated here.

An embodiment of the present invention further provides a computer-readable storage medium. A computer program is stored on the computer-readable storage medium, and when the computer program is executed by a processor, multiple processes of the CSI reporting method shown in the foregoing embodiment are implemented, and To achieve the same technical effect, to avoid repetition, it will not be repeated here. Among them, a computer-readable storage medium, such as a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk, and the like.

It should be noted that, in this article, the terms "including", "including" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, It also includes other elements not explicitly listed, or elements inherent to such a process, method, article, or device. Without more restrictions, an element limited by the sentence "including a ..." does not exclude that there are other identical elements in the process, method, article, or device that includes the element.

Through the description of the above embodiments, those skilled in the art can clearly understand that the methods in the above embodiments can be implemented by means of software plus a necessary universal hardware platform, and of course, also by hardware, but in many cases the former is better. Implementation. Based on such an understanding, the technical solution of this application that is essentially or contributes to the existing technology can be embodied in the form of a software product, which is stored in a storage medium (such as ROM / RAM, magnetic disk, The CD-ROM) includes several instructions for causing a terminal (which may be a mobile phone, a computer, a server, an air conditioner, or a network device, etc.) to execute the methods described in the embodiments of the present invention.

The embodiments of the present invention have been described above with reference to the accompanying drawings, but the present invention is not limited to the above specific implementations, and the above specific implementations are only schematic and not restrictive. Those of ordinary skill in the art at Under the enlightenment of the present invention, many forms can be made without departing from the scope of the present invention and the scope of protection of the claims, all of which fall into the protection of the present invention.

Claims (39)

A method for reporting channel state information CSI, which is characterized in that it is applied to a terminal. The method includes: Acquiring instruction information; wherein the instruction information is used to instruct the terminal to report a CSI corresponding to a first unit frequency resource; the first unit frequency resource includes: all or part of the unit frequency resource activated by the terminal and / or all All or part of the unit frequency resources deactivated by the terminal; the unit frequency resources include: a bandwidth part BWP or a carrier unit CC; Reporting the CSI to a network device according to the instruction information. The method according to claim 1, wherein the indication information is specifically used to indicate the number N of the first unit frequency resource and / or the first unit frequency resource; N is a positive value greater than or equal to 1. Integer. The method according to claim 2, wherein the indication information is specifically used to indicate the number N of the first unit frequency resources; The reporting the CSI to a network device according to the instruction information includes: Reporting the CSI to a network device according to the instruction information and a first predetermined rule; Wherein, the first predetermined rule includes at least one of the following: the first unit frequency resource is a unit frequency resource before the channel quality ranking N, and the first unit frequency resource is a unit before the number N of the unit frequency resource ranking Frequency resources. The method according to claim 3, wherein the first predetermined rule is configured by the network device to the terminal or is predefined. The method according to claim 1, wherein the obtaining instruction information comprises: Receiving instruction information sent by a network device to the terminal. The method according to any one of claims 1 to 5, wherein the acquiring instruction information comprises: Decoding the downlink control channel PDCCH acquired by the terminal, and acquiring indication information carried in the PDCCH. The method according to claim 5, wherein the indication information is carried on a media access control entity MAC CE. The method according to claim 1, wherein the obtaining instruction information comprises: Decoding the downlink control channel PDCCH acquired by the terminal, and acquiring indication information; The indication information is information of a first BWP where the PDCCH is located; the first BWP is a BWP activated by a network device or a BWP in a CC; The reporting the CSI to a network device according to the instruction information includes: Reporting the CSI to a network device according to the instruction information and a second predetermined rule; When the first unit frequency resource is a BWP, the second predetermined rule includes at least one of the following: the first unit frequency resource is the first BWP, and the first unit frequency resource is A BWP in a second BWP or BWP group corresponding to the first BWP; Alternatively, when the first unit frequency resource is CC, the second predetermined rule includes at least one of the following: the first unit frequency resource is the first BWP, and the first unit frequency resource is A first CC or a CC in a CC group corresponding to the first BWP. The method according to claim 8, wherein the second predetermined rule is configured by the network device to the terminal or is predefined. The method according to claim 1, wherein the indication information includes at least one of: an identifier of the first unit frequency resource, a number N of the first unit frequency resource, and a group of a unit frequency resource group Identification; wherein N is a positive integer greater than or equal to 1, and the unit frequency resource group includes the first unit frequency resource. The method according to claim 1, wherein when the first unit frequency resource includes at least one unit frequency resource activated by the terminal, the method reports the CSI to a network device according to the indication information, include: Reporting the CSI corresponding to all the first unit frequency resources to the network device according to the instruction information. A method for reporting channel state information CSI, which is characterized in that it is applied to network equipment. The method includes: Sending instruction information to the terminal; The instruction information is used to instruct the terminal to report the CSI corresponding to the first unit frequency resource; the instruction information is further used to instruct the terminal to report the CSI to the network device according to the instruction information; the The first unit frequency resource includes: all or part of the unit frequency resource activated by the terminal and / or all or part of the unit frequency resource deactivated by the terminal; the unit frequency resource includes: a bandwidth part BWP or a carrier unit CC; Receiving the CSI sent by the terminal. The method according to claim 12, wherein the indication information is specifically used to indicate the number N of the first unit frequency resource and / or the first unit frequency resource; N is a positive value greater than or equal to 1. Integer. The method according to claim 12 or 13, wherein the sending the instruction information to the terminal comprises: Sending a downlink control channel PDCCH to the terminal; The indication information is carried in the PDCCH. The method according to claim 12 or 13, wherein the sending the instruction information to the terminal comprises: Sending a downlink control channel PDCCH to the terminal on the first BWP according to a second predetermined rule; The first BWP is a BWP activated by a network device or a BWP in a CC; When the first unit frequency resource is a BWP, the second predetermined rule includes at least one of the following: the first unit frequency resource is the first BWP, and the first unit frequency resource is a The second BWP or the BWP in the BWP group where the first BWP has a corresponding relationship; Alternatively, when the first unit frequency resource is CC, the second predetermined rule includes at least one of the following: the first unit frequency resource is the first BWP, and the first unit frequency resource is A first CC or a CC in a CC group corresponding to the first BWP. The method according to claim 15, wherein the second predetermined rule is configured by the network device to the terminal or is predefined. The method according to claim 12, wherein the indication information is carried on a media access control entity MAC CE. The method according to claim 12, wherein the indication information includes at least one of: an identifier of the first unit frequency resource, a number N of the first unit frequency resource, and a group of unit frequency resource groups Identification; wherein N is a positive integer greater than or equal to 1, and the unit frequency resource group includes the first unit frequency resource. A terminal, comprising: An obtaining module, configured to obtain instruction information; wherein the instruction information is used to instruct the terminal to report a CSI corresponding to a first unit frequency resource; the first unit frequency resource includes all or part of a unit frequency activated by the terminal Resources and / or all or part of the unit frequency resources deactivated by the terminal; the unit frequency resources include: a bandwidth part BWP or a carrier unit CC; A reporting module, configured to report the CSI to a network device according to the instruction information obtained by the obtaining module. The terminal according to claim 19, wherein the indication information is specifically used to indicate the number N of the first unit frequency resource and / or the first unit frequency resource; N is a positive value greater than or equal to 1. Integer. The terminal according to claim 20, wherein the indication information is specifically used to indicate the number N of the first unit frequency resources; The reporting module is specifically configured to report the CSI to a network device according to the instruction information and the first predetermined rule obtained by the obtaining module; Wherein, the first predetermined rule includes at least one of the following: the first unit frequency resource is a unit frequency resource before the channel quality ranking N, and the first unit frequency resource is a unit before the number N of the unit frequency resource ranking Frequency resources. The terminal according to claim 21, wherein the first predetermined rule is configured by the network device to the terminal or is predefined. The terminal according to claim 19, wherein the obtaining module is specifically configured to receive instruction information sent by a network device to the terminal. The terminal according to any one of claims 19 to 23, wherein the obtaining module is specifically configured to: Decoding the downlink control channel PDCCH acquired by the terminal, and acquiring indication information carried in the PDCCH. The terminal according to claim 23, wherein the indication information is carried on a MAC CE. The terminal according to claim 19, wherein the acquiring module is specifically configured to decode a downlink control channel (PDCCH) acquired by the terminal to acquire indication information; The indication information is information of a first BWP where the PDCCH is located; the first BWP is a BWP activated by a network device or a BWP in a CC; The reporting module is specifically configured to report the CSI to the network device according to the instruction information and the second predetermined rule acquired by the acquiring module; When the first unit frequency resource is a BWP, the second predetermined rule includes at least one of the following: the first unit frequency resource is the first BWP, and the first unit frequency resource is A BWP in a second BWP or BWP group corresponding to the first BWP; Alternatively, when the first unit frequency resource is CC, the second predetermined rule includes at least one of the following: the first unit frequency resource is the first BWP, and the first unit frequency resource is A first CC or a CC in a CC group corresponding to the first BWP. The terminal according to claim 26, wherein the second predetermined rule is configured by the network device to the terminal or is predefined. The terminal according to claim 19, wherein the indication information comprises at least one of the following: an identifier of the first unit frequency resource, a number N of the first unit frequency resource, and a group of a unit frequency resource group Identification; wherein N is a positive integer greater than or equal to 1, and the unit frequency resource group includes the first unit frequency resource. The terminal according to claim 19, wherein when the first unit frequency resource includes at least one unit frequency resource activated by the terminal, the reporting module is specifically configured to: The indication information reports the CSI corresponding to all the first unit frequency resources to the network device. A network device, comprising: A sending module, configured to send instruction information to the terminal; The instruction information is used to instruct the terminal to report the CSI corresponding to the first unit frequency resource; the instruction information is further used to instruct the terminal to report the CSI to the network device according to the instruction information; the The first unit frequency resource includes: all or part of the unit frequency resource activated by the terminal and / or all or part of the unit frequency resource deactivated by the terminal; the unit frequency resource includes: a bandwidth part BWP or a carrier unit CC; A receiving module, configured to receive CSI sent by the terminal. The network device according to claim 30, wherein the indication information is specifically used to indicate the number N of the first unit frequency resource and / or the first unit frequency resource; N is greater than or equal to 1 Positive integer. The network device according to claim 30 or 31, wherein the sending module is specifically configured to: send a downlink control channel (PDCCH) to the terminal; The indication information is carried in the PDCCH. The network device according to claim 30 or 31, wherein the sending module is specifically configured to send a downlink control channel (PDCCH) to the terminal on the first BWP according to a second predetermined rule; The first BWP is a BWP activated by a network device or a BWP in a CC; When the first unit frequency resource is a BWP, the second predetermined rule includes at least one of the following: the first unit frequency resource is the first BWP, and the first unit frequency resource is a The second BWP or the BWP in the BWP group where the first BWP has a corresponding relationship; Alternatively, when the first unit frequency resource is CC, the second predetermined rule includes at least one of the following: the first unit frequency resource is the first BWP, and the first unit frequency resource is A first CC or a CC in a CC group corresponding to the first BWP. The network device according to claim 33, wherein the second predetermined rule is configured by the network device to the terminal or is predefined. The network device according to claim 30, wherein the indication information is carried on a MAC CE. The network device according to claim 30, wherein the indication information includes at least one of the following: an identifier of the first unit frequency resource, a number N of the first unit frequency resource, a unit frequency resource group A group identifier; wherein N is a positive integer greater than or equal to 1, and the unit frequency resource group includes the first unit frequency resource. A terminal, comprising a processor, a memory, and a computer program stored on the memory and executable on the processor, and when the computer program is executed by the processor, the implementation as claimed in claims 1 to Steps of the method for monitoring a downlink control channel PDCCH according to any one of 11. A network device, comprising a processor, a memory, and a computer program stored on the memory and executable on the processor. When the computer program is executed by the processor, the computer program according to claim 12 is implemented. Steps of the method for monitoring a downlink control channel PDCCH according to any one of 18 to 18. A computer-readable storage medium, characterized in that a computer program is stored on the computer-readable storage medium, and when the computer program is executed by a processor, the program for monitoring according to any one of claims 1 to 18 is implemented. Steps of the method of downlink control channel PDCCH.

Images