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WO2018145583A1 - Procédé de réservation de ressource et procédé de détermination pour canal de commande de liaison montante, station de base et terminal - Google Patents

Procédé de réservation de ressource et procédé de détermination pour canal de commande de liaison montante, station de base et terminal Download PDF

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Publication number
WO2018145583A1
WO2018145583A1 PCT/CN2018/074265 CN2018074265W WO2018145583A1 WO 2018145583 A1 WO2018145583 A1 WO 2018145583A1 CN 2018074265 W CN2018074265 W CN 2018074265W WO 2018145583 A1 WO2018145583 A1 WO 2018145583A1
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WIPO (PCT)
Prior art keywords
uplink control
control channel
resource
downlink
channel resource
Prior art date
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Ceased
Application number
PCT/CN2018/074265
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English (en)
Chinese (zh)
Inventor
鲁智
沈晓冬
丁昱
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Vivo Mobile Communication Co Ltd
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Vivo Mobile Communication Co Ltd
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Filing date
Publication date
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Publication of WO2018145583A1 publication Critical patent/WO2018145583A1/fr
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W28/00—Network traffic management; Network resource management
    • H04W28/16—Central resource management; Negotiation of resources or communication parameters, e.g. negotiating bandwidth or QoS [Quality of Service]
    • H04W28/26—Resource reservation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0053—Allocation of signalling, i.e. of overhead other than pilot signals
    • H04L5/0055—Physical resource allocation for ACK/NACK
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/12—Wireless traffic scheduling
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/12—Wireless traffic scheduling
    • H04W72/121—Wireless traffic scheduling for groups of terminals or users
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/12—Wireless traffic scheduling
    • H04W72/1263—Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows

Definitions

  • the present disclosure relates to the field of communications technologies, and in particular, to a resource reservation method and a method for determining an uplink control channel, a base station, and a terminal.
  • 5G mobile communication systems need to adapt to more diverse scenarios and business needs.
  • the main scenarios of 5G include mobile broadband enhancement (eMBB), large-scale Internet of Things (mMTC), and ultra-reliable ultra-low latency communication (URLLC).
  • eMBB mobile broadband enhancement
  • mMTC large-scale Internet of Things
  • URLLC ultra-reliable ultra-low latency communication
  • eMBB mobile broadband enhancement
  • mMTC large-scale Internet of Things
  • URLLC ultra-reliable ultra-low latency communication
  • These scenarios put high reliability, low latency, large bandwidth, and wide coverage on the system. Wait for the request.
  • traffic requires low latency and highly reliable transmission.
  • it is an effective means to reduce the length of the time slot and reduce the loopback delay.
  • some diversity transmission mechanisms such as time diversity, space diversity, and code domain diversity, need to be considered.
  • the downlink control information and the service data information are transmitted in one subframe, and the resources of the uplink control channel are implicitly obtained according to the downlink grant, and the uplink of the URLLC service transmission cannot be determined in the related art. Control channel resources.
  • the embodiments of the present disclosure provide a resource reservation method and a method for determining an uplink control channel, a base station, and a terminal, to solve the problem that the uplink control channel resource of the URLLC service transmission cannot be determined in the related art.
  • an embodiment of the present disclosure provides a resource reservation method for an uplink control channel, which is applied to a base station, and includes:
  • the response information or other control information sent by the terminal is received by the uplink control channel resource, where the response information or other control information includes at least: response feedback information corresponding to the downlink control channel in the downlink transport channel resource.
  • the embodiment of the present disclosure further provides a method for determining a resource of an uplink control channel, which is applied to a terminal, and includes:
  • the uplink control channel resource Transmitting, by the uplink control channel resource, a response message or other control information to the base station, where the response information or other control information includes at least: response feedback information corresponding to the downlink control channel in the downlink transport channel resource.
  • an embodiment of the present disclosure provides a base station, including:
  • a scheduling module configured to schedule, for the terminal, a downlink transmission channel resource for transmitting downlink information
  • a reservation module configured to reserve a corresponding uplink control channel resource for the terminal according to the downlink transmission channel resource
  • a receiving module configured to receive, by using the uplink control channel resource, response information or other control information sent by the terminal, where the response information or other control information includes: at least: a response corresponding to a downlink control channel in the downlink transport channel resource Feedback.
  • an embodiment of the present disclosure provides a terminal, including:
  • a detecting module configured to detect a downlink transmission channel resource used by the base station to transmit downlink information
  • a processing module configured to determine, according to the detected downlink transmission channel resources, a corresponding uplink control channel resource
  • a sending module configured to send, by using the uplink control channel resource, a response message or other control information to the base station, where the response information or other control information includes: at least: a response corresponding to a downlink control channel in the downlink transport channel resource Feedback.
  • the base station of the embodiment of the present disclosure reserves the corresponding uplink control channel resource for the terminal by using the scheduled downlink transmission channel resource to implement scheduling and indication of the uplink transmission resource. Further, after receiving the downlink information, the terminal feeds back the response information or other control information through the uplink control channel resource, so that the base station stops repeatedly transmitting the downlink information.
  • FIG. 1 is a flowchart showing a resource reservation method of an uplink control channel according to a first embodiment of the present disclosure
  • FIG. 2 is a flowchart of a resource reservation method of an uplink control channel according to a second embodiment of the present disclosure
  • FIG. 3 is another flowchart of a resource reservation method of an uplink control channel according to a second embodiment of the present disclosure
  • FIG. 4 is a block diagram showing a base station of a third embodiment of the present disclosure.
  • FIG. 5 is a block diagram showing another module of a base station according to a third embodiment of the present disclosure.
  • Figure 6 is a block diagram showing a base station of a fourth embodiment of the present disclosure.
  • FIG. 7 is a flowchart showing a method for determining a resource of an uplink control channel according to a fifth embodiment of the present disclosure
  • FIG. 8 is a flowchart showing a method for determining a resource of an uplink control channel according to a sixth embodiment of the present disclosure
  • FIG. 9 is another flowchart of a method for determining a resource of an uplink control channel according to a sixth embodiment of the present disclosure.
  • FIG. 10 is a block diagram showing a terminal of a seventh embodiment of the present disclosure.
  • FIG. 11 is a block diagram showing another module of the terminal according to the seventh embodiment of the present disclosure.
  • Fig. 12 is a block diagram showing the terminal of the eighth embodiment of the present disclosure.
  • a resource reservation method for an uplink control channel is applied to a base station, and specifically includes the following steps 101 to 103.
  • Step 101 Schedule a downlink transport channel resource for transmitting downlink information for the terminal.
  • the downlink information includes downlink control information and downlink data information
  • the corresponding downlink transport channel resources include: a downlink control channel resource and a downlink data channel resource.
  • the base station schedules, for the terminal, downlink transmission channel resources for transmitting downlink information, and may send the downlink control information (such as the display control interface DCI information) to the terminal, or send the information to the terminal through a broadcast or other system message, so that the terminal learns the base station scheduling.
  • Downlink transmission channel resources such as the display control interface DCI information
  • Step 102 Reserve corresponding uplink control channel resources for the terminal according to the downlink transmission channel resource.
  • the corresponding uplink control channel resource is reserved for the terminal, so that the terminal can send uplink information by using the uplink control channel resource, according to a preset mapping relationship between the uplink control channel resource and the downlink transmission channel resource.
  • Step 103 Receive response information or other control information sent by the terminal by using the uplink control channel resource.
  • the base station receives the response information or other control information sent by the terminal by using the reserved uplink control channel resource.
  • the response information or other control information includes at least: response feedback information corresponding to a downlink control channel in the downlink transport channel resource. Further, the response information or other control information further includes: response feedback information corresponding to the downlink data channel in the downlink transport channel resource.
  • the response information is response feedback/non-response feedback (ACK/NACK), and the other control information is uplink control information other than the response information.
  • ACK/NACK response feedback/non-response feedback
  • the base station does not receive the ACK feedback information through the uplink control channel resource, and then continues to repeatedly send the downlink information to the terminal until the ACK feedback information is received.
  • the terminal After receiving the downlink information, the terminal sends the ACK feedback through the corresponding uplink control channel resource, so that the base station stops sending the downlink information under the current transmission.
  • the downlink information includes control information and data information, where the downlink transmission channel resource includes: a downlink control channel resource and a downlink data channel resource, and the response information or other control information received by the base station by using the uplink control channel resource includes: The response feedback information corresponding to the downlink control channel in the resource, and the response feedback information corresponding to the downlink data channel in the downlink transport channel resource. That is, the terminal separately performs ACK feedback on the control information and the data information.
  • the terminal When the terminal receives the control information and does not receive the data information, the terminal only sends the ACK feedback of the control information through the corresponding uplink control channel. At this time, the base station passes the The uplink control channel resource receives the ACK feedback information corresponding to the downlink control channel, and then stops transmitting the control information and repeatedly transmits the data information until the ACK feedback information corresponding to the downlink data channel is received, so as to reduce the bit overhead of the control information. Save network transmission resources.
  • the base station reserves the corresponding uplink control channel resource according to the downlink transmission channel resource scheduled by the terminal, so that the terminal feeds back the corresponding uplink control information through the uplink control channel resource, and the base station Determining whether the downlink information needs to be retransmitted according to the uplink control information, so as to meet the requirement of low latency and high reliability of the service, and further saving network transmission resources.
  • the first embodiment of the present invention provides a brief introduction to the resource reservation method of the uplink control channel of the present invention.
  • the following embodiments will be further described in conjunction with the accompanying drawings and specific application scenarios.
  • the base station may to a terminal (UE Transfer control information and data multiple times.
  • the gNB stops transmitting until the UE feeds back the ACK.
  • the control information load is small, the reliability requirement is high, and correspondingly, the data information load is large. Therefore, there may be a scenario in which the control information is correctly received, but the data information needs to be retransmitted multiple times. That is, in the URLLC service transmission scenario, the gNB repeatedly transmits control information and data information for one UE until the UE feeds back an ACK, and the gNB stops transmitting.
  • control information and the data may be in a time diversity (TDM) manner, or multiple mini-slots may be scheduled for one downlink grant.
  • TDM time diversity
  • the resource reservation method of the uplink control channel in the embodiment of the present disclosure is described in detail below in the control information and the data information transmission scenario.
  • Scenario 1 The acknowledgment information corresponding to the downlink control information is used as an example.
  • the resource reservation method of the uplink control channel in the embodiment of the present invention is applied to the base station, and specifically includes the following steps 201 to 203.
  • Step 201 Scheduling downlink transmission channel resources for transmitting downlink control information for the terminal.
  • the downlink transmission channel resource scheduled by the base station may be sent to the terminal by using downlink control information, a broadcast, or other system message.
  • Step 202 Reserve a corresponding first uplink control channel resource for the terminal according to the initial control channel unit CCE of the downlink grant information in the downlink transport channel resource.
  • the manner of determining uplink control channel resources according to downlink transmission channel resources is different.
  • the control information and the data information may adopt a time division multiplexing (TDM) method and a frequency division multiplexing (FDM) method.
  • TDM time division multiplexing
  • FDM frequency division multiplexing
  • the base station reserves the uplink control channel resources in the following manner:
  • a channel number indicating the uplink control channel resource Indicates a starting CCE of downlink grant information in the downlink transport channel resource, Indicates the offset of the uplink control channel resource of the service control channel configured by the upper layer.
  • the base station reserves the uplink control channel resources in the following manner:
  • a channel number indicating an uplink control channel resource Indicates the starting CCE of the downlink grant information in the downlink transport channel resource, for Function, the same under different numerical configurations corresponding different, Indicates the offset of the uplink control channel resource of the service control channel configured by the upper layer.
  • the initial CCE indicating the downlink grant information in the downlink transport channel resource it may also be the minimum value in the CCE of the downlink grant information in the downlink transport channel resource.
  • the Numingology may have duplicate numbers. Therefore, when mapping the uplink transmission channel resources and the downlink transmission channel resources, you need to pass the The mapping function distinguishes the same CCE number. For example, the CCE number used by Numerology1 is 1-100. Some of the resources are used for Numerology2, and its number is 1-80. At this point, there are two solutions to the potential conflict, the first one is different for different Numerology assignments. Offset, the second is in the same The offset is distinguished by a mapping function. For example, the function of Numerology2 is among them The sum of the CCE numbers for other Numerology.
  • Step 203 Receive, by using the first uplink control channel resource, response information or other control information sent by the terminal according to the downlink control information.
  • the base station receives the response information or other uplink control information sent by the terminal according to the received downlink control information by using the reserved first uplink control channel resource.
  • the response information or other control information includes at least: response feedback information corresponding to a downlink control channel in the downlink transport channel resource.
  • the base station fails to receive the ACK feedback information corresponding to the downlink control channel by using the first uplink control channel resource, and continues to repeatedly send the downlink control information to the terminal until the terminal correctly receives the downlink control.
  • the ACK feedback information is sent, and after receiving the ACK feedback information corresponding to the downlink control channel, the base station stops transmitting the downlink control information to the terminal.
  • the maximum number of transmissions of the primary transmission may be set in advance, so that the base station stops transmitting the downlink control information when repeatedly transmitting the downlink control information to the maximum number of transmissions.
  • the base station may notify the terminal through the DCI that the maximum number of times of downlink control information transmission in one transmission is four times.
  • the maximum number of transmissions is different according to the transmission level.
  • a specific bit may be added to the DCI information to indicate the transmission level.
  • the value of the characteristic bit is different according to the indicated transmission level, and the corresponding maximum transmission number is different. For example, a maximum of four transmissions is indicated by 11 of 2 bits, and a maximum of 8 transmissions is indicated by 00 of 2 bits. In this way, in one transmission, the terminal successfully sends the ACK feedback information after receiving the downlink control information, and the base station does not repeatedly send the same downlink control information.
  • the base station When the terminal does not receive the downlink control information and reaches the maximum number of transmissions, the base station receives a NACK feedback information through the first uplink control channel, and the base station re-schedules the terminal after receiving the NACK feedback information. That is, the terminal does not receive the downlink control information, and after receiving the downlink transmission for 4 times, the base station receives the NACK feedback information sent by the terminal through the uplink control information, and re-schedules the terminal.
  • Scenario 2 Taking the response information of the downlink service data information as the example, as shown in FIG. 3, the resource reservation method of the uplink control channel in the embodiment of the present invention is applied to the base station, and specifically includes the following steps 301 to 303. .
  • Step 301 Schedule a downlink transmission channel resource for transmitting downlink service data information for the terminal.
  • the base station may send the scheduling information of the downlink transmission channel resource for transmitting the downlink service data information to the terminal together with the scheduling information of the downlink transmission channel resource for transmitting the downlink control information, so as to reduce the number of transmissions.
  • Step 302 Reserve a corresponding second uplink control channel resource for the terminal according to the starting physical resource block PRB that transmits the downlink service data information in the downlink transport channel resource.
  • the manner of determining the uplink control channel resources according to the downlink transmission channel resources is different according to different transmission scenarios and multiplexing modes.
  • the control information and the data information may be in a TDM manner and an FDM manner. The following will introduce different transmission scenarios and multiplexing methods.
  • the base station reserves the uplink control channel resources in the following manner:
  • n PRB_start indicates the initial PRB of the downlink service data information in the downlink transport channel resource.
  • DMRS demodulation reference signal
  • the PRB index of the URLLC service and the other services use separate PRB (Physical Resource Block) indexes, that is, the entire frequency domain bandwidth is different.
  • PRB Physical Resource Block indexes
  • Numerical configuration (Numerology), PRB is numbered separately.
  • the base station reserves the uplink control channel resources in the following manner:
  • n PRB_start represents starting PRB downlink transmission channel resources to transmit downlink service data information
  • F (n PRB_start) of n n PRB_start the function different values arranged PRB_start is the same as the corresponding F ( n PRB_start ) is different
  • the n PRB_start may be a PRB corresponding to the lowest frequency index of the downlink transport channel resources, in addition to the initial PRB of the downlink service data information in the downlink transport channel resource.
  • Step 303 The response information or other control information sent by the terminal according to the downlink service data information is received by the second uplink control channel resource.
  • the response information or other control information further includes: response feedback information corresponding to the downlink data channel in the downlink transport channel resource.
  • the base station fails to receive the ACK feedback information corresponding to the downlink data channel by using the second uplink control channel resource, and continues to repeatedly send the downlink service data information to the terminal until the terminal.
  • the ACK feedback information is sent, and after receiving the ACK feedback information corresponding to the downlink data channel, the base station stops transmitting the downlink service data information and the control channel information to the terminal.
  • the maximum number of transmissions of one transmission may be set in advance.
  • the base station When the terminal does not receive the downlink service data information and reaches the maximum number of transmissions, the base station passes the second uplink control. After receiving the NACK feedback information, the base station re-schedules the terminal after receiving the NACK feedback information.
  • the maximum number of transmissions refer to the method in scenario one, and therefore no further details are provided herein.
  • the base station reserves the first uplink control channel resource for transmitting the response information or other control information for the terminal, so that the UE can respond to both the control information and the data information, and when the UE receives the control information, the ACK is returned, and the gNB stops. Subsequent transmission of control information, only data information is sent. This saves control resource overhead.
  • the gNB will stop the repeated transmission of the current transport block and start the next new transmission.
  • the terminal receives downlink control information in the mini slot n, and the delay is k0, that is, its HARQ is fed back in the n+k0 mini slot.
  • the terminal receives data in the mini slot n, and the delay is k1, that is, its HARQ is fed back in the n+k1 mini slot.
  • the base station reserves the corresponding uplink control channel resource according to the downlink transmission channel resource scheduled by the terminal, so that the terminal feeds back the corresponding uplink control information through the uplink control channel resource, and the base station Determining whether the downlink information needs to be retransmitted according to the uplink control information, so as to meet the requirement of low latency and high reliability of the service, and further saving network transmission resources.
  • the base station 400 of the embodiment of the present disclosure can implement the downlink transmission channel resource for the terminal to transmit downlink information in the first embodiment and the second embodiment, and reserve the terminal for the terminal according to the downlink transmission channel resource.
  • the base station 400 specifically includes the following functional modules:
  • the scheduling module 410 is configured to schedule, for the terminal, a downlink transmission channel resource for transmitting downlink information
  • a reservation module 420 configured to reserve a corresponding uplink control channel resource for the terminal according to the downlink transmission channel resource
  • the receiving module 430 is configured to receive the response information or other control information sent by the terminal by using the uplink control channel resource, where the response information or other control information at least includes: corresponding to the downlink control channel in the downlink transport channel resource Answer feedback information. .
  • the reservation module 420 includes:
  • the first reservation sub-module 421 is configured to reserve a corresponding first uplink control channel resource for the terminal according to the initial control channel unit CCE of the downlink grant information in the downlink transport channel resource.
  • the first reservation submodule 421 includes:
  • a first determining unit 4211 configured to Determining a first channel number corresponding to the starting CCE
  • a first reservation unit 4212 configured to reserve, for the terminal, a first uplink control channel resource whose channel number is the first channel number
  • a channel number indicating an uplink control channel resource Indicates the starting CCE of the downlink grant information in the downlink transport channel resource, Indicates the offset of the uplink control channel resource of the service control channel configured by the upper layer.
  • the first reservation submodule 421 includes:
  • a second determining unit 4213 configured to Determining a first channel number corresponding to the starting CCE
  • a second reserved unit 4214 configured to reserve, for the terminal, a first uplink control channel resource whose channel number is the first channel number
  • a channel number indicating an uplink control channel resource Indicates the starting CCE of the downlink grant information in the downlink transport channel resource, for Function, the same under different numerical configurations corresponding different, Indicates the offset of the uplink control channel resource of the service control channel configured by the upper layer.
  • the reservation module 420 further includes:
  • the second reservation sub-module 422 is configured to reserve a corresponding second uplink control channel resource for the terminal according to the starting physical resource block PRB that transmits the downlink service data information in the downlink transport channel resource.
  • the second reservation submodule 422 includes:
  • a third determining unit 4221 configured to Determining a second channel number corresponding to the starting PRB
  • a third reserved unit 4222 configured to reserve, for the terminal, a second uplink control channel resource whose channel number is the second channel number;
  • n PRB_start indicates the initial PRB of the downlink service data information in the downlink transport channel resource.
  • the second reservation submodule 422 includes:
  • a fourth determining unit 4223 configured to Determining a second channel number corresponding to the starting PRB
  • a fourth reservation unit 4224 configured to reserve, for the terminal, a second uplink control channel resource whose channel number is the second channel number;
  • n PRB_start represents starting PRB downlink transmission channel resources to transmit downlink service data information
  • F (n PRB_start) of n n PRB_start the function different values arranged PRB_start is the same as the corresponding F ( n PRB_start ) is different
  • the base station of the embodiment of the present disclosure reserves the corresponding uplink control channel resource for the terminal to perform the scheduling and indication of the uplink control channel resource by using the scheduled downlink transmission channel resource; further, the receiving terminal of the uplink control channel resource receives the The response information or other control information fed back after the downlink information stops transmitting the downlink information repeatedly after receiving the response information, satisfies the requirement of low delay and high reliability of the service, and further saves network transmission resources.
  • the fourth embodiment of the present disclosure further provides a base station, where the base station includes: a processor 600; and a memory 620 connected to the processor 600 through a bus interface. And a transceiver 610 coupled to the processor 600 via a bus interface; the memory 620 for storing programs and data used by the processor in performing operations; transmitting data information or pilots through the transceiver 610 Receiving, by the transceiver 610, an uplink control channel; when the processor 600 calls and executes the programs and data stored in the memory 620, specifically,
  • the processor 600 is configured to read the program in the memory 620, and is specifically configured to: perform downlink transmission channel resources for transmitting downlink information for the terminal, and reserve corresponding uplink control channel resources for the terminal according to downlink transmission channel resources. .
  • the transceiver 610 is configured to receive and send data under the control of the processor 600, where specifically, to perform the following functions: receiving response information or other control information sent by the terminal by using an uplink control channel resource; wherein, the response information or other control information is at least
  • the method includes: response feedback information corresponding to a downlink control channel in a downlink transport channel resource.
  • the bus architecture may include any number of interconnected buses and bridges, specifically linked by one or more processors represented by processor 600 and various circuits of memory represented by memory 620.
  • 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 and, therefore, will not be further described herein.
  • the bus interface provides an interface.
  • Transceiver 610 can be a plurality of components, including a transmitter and a transceiver, providing means for communicating with various other devices on a transmission medium.
  • the processor 600 is responsible for managing the bus architecture and general processing, and the memory 620 can store data used by the processor 600 in performing operations.
  • the processor 600 is further configured to: reserve a corresponding first uplink control channel resource for the terminal according to the start control channel unit CCE of the downlink grant information in the downlink transport channel resource.
  • the processor 600 is further configured to perform: according to Determining a first channel number corresponding to the starting CCE;
  • a channel number indicating an uplink control channel resource Indicates the starting CCE of the downlink grant information in the downlink transport channel resource, Indicates the offset of the uplink control channel resource of the service control channel configured by the upper layer.
  • the processor 600 is further configured to perform: according to Determining a first channel number corresponding to the starting CCE;
  • a channel number indicating an uplink control channel resource Indicates the starting CCE of the downlink grant information in the downlink transport channel resource, for Function, the same under different numerical configurations corresponding different, Indicates the offset of the uplink control channel resource of the service control channel configured by the upper layer.
  • the processor 600 is further configured to: reserve a corresponding second uplink control channel resource for the terminal according to the starting physical resource block PRB that transmits the downlink service data information in the downlink transport channel resource.
  • the processor 600 is further configured to perform: according to Determining a second channel number corresponding to the starting PRB;
  • n PRB_start indicates the initial PRB of the downlink service data information in the downlink transport channel resource.
  • the processor 600 is further configured to perform: according to Determining a second channel number corresponding to the starting PRB;
  • n PRB_start represents starting PRB downlink transmission channel resources to transmit downlink service data information
  • F (n PRB_start) of n n PRB_start the function different values arranged PRB_start is the same as the corresponding F ( n PRB_start ) is different
  • the base station reserves the corresponding uplink control channel resource for the terminal by using the scheduled downlink transmission channel resource to implement the scheduling and indication of the uplink transmission resource. Further, the receiving terminal of the uplink control channel receives the downlink information after receiving the feedback information. The response information or other control information stops transmitting the downlink information repeatedly after receiving the response information, satisfies the requirement of low latency and high reliability of the service, and further saves network transmission resources.
  • the foregoing first embodiment to the fourth embodiment describe the resource reservation method of the uplink control channel of the present disclosure from the base station side.
  • the following embodiment will be used to determine the resource determination method of the uplink control channel on the terminal side corresponding to the drawing. Further introduction.
  • the resource determining method of the uplink control channel in the embodiment of the present disclosure is applied to the terminal, and specifically includes the following steps 701 to 703.
  • Step 701 Detect a downlink transport channel resource scheduled by the base station for transmitting downlink information.
  • the downlink information includes: downlink control information and downlink data information, and the corresponding downlink transmission channel resources include: a downlink control channel resource and a downlink data channel resource.
  • the terminal may acquire downlink transmission channel resources scheduled by the base station for the terminal by receiving downlink control information (such as DCI information) or by broadcasting or other system messages.
  • Step 702 Determine a corresponding uplink control channel resource according to the detected downlink transmission channel resource.
  • the terminal can directly determine the corresponding uplink control channel resource after detecting the downlink transmission channel resource according to the mapping relationship between the preset uplink control channel resource and the downlink transmission channel resource.
  • Step 703 Send a response message or other control information to the base station by using the uplink control channel resource.
  • the response information or other control information includes at least: response feedback information corresponding to a downlink control channel in the downlink transport channel resource.
  • the response information is response feedback/non-response feedback (ACK/NACK), and other control information is uplink control information other than the response information.
  • ACK/NACK response feedback/non-response feedback
  • the terminal does not send the ACK feedback to the base station, and the base station continues to repeatedly send the downlink information until the terminal receives the downlink information, and then sends the ACK feedback through the corresponding uplink control channel resource, so that the base station stops transmitting the current transmission.
  • Downstream information includes control information and data information, and the terminal separately performs ACK feedback on the control information and the data information respectively.
  • the terminal When the terminal receives the control information but does not receive the data information, the terminal only sends the control information through the corresponding uplink control channel.
  • the ACK feedback causes the base station to stop transmitting the control information and continue to repeatedly transmit the data information until the ACK feedback of the data information is received, so as to reduce the bit overhead of the control information and save network transmission resources.
  • the terminal determines the corresponding uplink transmission channel resource according to the scheduling information of the downlink transmission channel resource scheduled by the base station, and further receives the downlink information by using the uplink control channel resource when receiving the downlink information.
  • the information or other control information causes the base station to stop transmitting the downlink information repeatedly, meets the requirements of low delay and high reliability of the service, and further saves network transmission resources.
  • the fifth embodiment of the present disclosure provides a brief introduction to the method for determining the resource of the uplink control channel of the present disclosure.
  • the following embodiments will be further described in conjunction with the accompanying drawings and specific application scenarios.
  • the URLLC service transmission scenario is used to determine the transmission of the response information transmission resource corresponding to the downlink control information.
  • the method for determining the resource of the uplink control channel in the embodiment of the present disclosure is applied to the terminal, and specifically includes the following steps. 801 to 803.
  • Step 801 Detect a downlink transmission channel resource scheduled by the base station for transmitting downlink control information.
  • the downlink transmission channel resources scheduled by the base station for transmitting downlink control information are obtained.
  • Step 802 Determine a corresponding first uplink control channel resource according to the initial control channel unit CCE of the downlink grant information in the detected downlink transport channel resource.
  • the manner of determining uplink control channel resources according to downlink transmission channel resources is different.
  • the control information and the data information can adopt the TDM method and the FDM method. The following will introduce different transmission scenarios and multiplexing methods.
  • the terminal determines the uplink control channel resources by:
  • a channel number indicating an uplink control channel resource Indicates the starting CCE that receives the downlink authorization information. Indicates the offset of the uplink control channel resource of the service control channel configured by the upper layer.
  • the initial CCE indicating the downlink grant information in the downlink transport channel resource it may also be the minimum value in the CCE of the downlink grant information in the downlink transport channel resource.
  • the base station reserves the uplink control channel resources in the following manner:
  • a channel number indicating an uplink control channel resource Indicates the starting CCE that receives the downlink authorization information.
  • a channel number indicating an uplink control channel resource Indicates the starting CCE that receives the downlink authorization information.
  • For Function under different numerical configurations Corresponding different, Indicates the offset of the uplink control channel resource of the service control channel configured by the upper layer.
  • mapping uplink channel resources and downlink transport channel resources there may be duplicate numbers in different numerical configurations (Numerology). Therefore, when mapping uplink channel resources and downlink transport channel resources, you need to pass The mapping function distinguishes the same CCE number. For example, the CCE number used by Numerology1 is 1-100. Some of the resources are used for Numerology2, and its number is 1-80. At this point, there are two solutions to the potential conflict, the first one is different for different Numerology assignments. Offset, the second is in the same The offset is distinguished by a mapping function. For example, the function of Numerology2 is among them The sum of the CCE numbers for other Numerology.
  • Step 803 After detecting the downlink control information transmitted in the downlink transport channel resource, send the first response information or other control information to the base station by using the first uplink control channel resource.
  • the response information or other control information includes at least: response feedback information corresponding to a downlink control channel in the downlink transport channel resource.
  • the ACK feedback is not sent to the base station.
  • the base station does not receive the ACK feedback, the terminal will continue to repeatedly send the downlink control information until the terminal receives the downlink control information, and sends an ACK feedback message.
  • the base station stops transmitting downlink control information after receiving the ACK feedback information.
  • the maximum number of transmissions of the primary transmission may be set in advance, so that the terminal sends a downlink control information to the base station when the downlink control information is not received and the maximum number of transmissions is reached.
  • the NACK feedback information causes the base station to stop transmitting the downlink control information and reschedule the terminal.
  • the method for determining the resource of the uplink control channel in the embodiment of the present disclosure is applied to the terminal, and specifically includes the following steps 901 to 903.
  • Step 901 Detect a downlink transport channel resource scheduled by the base station for transmitting downlink service data information.
  • the terminal can learn the downlink control channel resources for transmitting the downlink control information and the downlink service data information by detecting the downlink control information, the broadcast information, or other system information, so as to reduce the number of detections and save power consumption of the terminal.
  • Step 902 Determine a corresponding second uplink control channel resource according to the starting physical resource block PRB of the downlink data information transmitted in the detected downlink transport channel resource.
  • step 802 Similar to step 802, in different transmission scenarios and multiplexing modes, the manner of determining uplink control channel resources according to downlink transmission channel resources is different. The following describes the different transmission scenarios and multiplexing methods.
  • the base station reserves the uplink control channel resources in the following manner:
  • n PRB_start indicates the initial PRB of the downlink service data information.
  • the n PRB_start may be a PRB corresponding to the lowest frequency index of the downlink transport channel resources, in addition to the initial PRB of the downlink service data information in the downlink transport channel resource.
  • the base station reserves the uplink control channel resources in the following manner:
  • n PRB_start indicates the start PRB of the downlink service data information
  • F(n PRB_start ) is a function of n PRB_start .
  • the corresponding F(n PRB_start ) is different.
  • Step 903 After detecting downlink service data information transmitted in the downlink transport channel resource, send second acknowledgement information or other control information to the base station by using the second uplink control channel resource.
  • the response information or other control information further includes: response feedback information corresponding to the downlink data channel in the downlink transport channel resource.
  • the terminal does not receive the downlink control information
  • the terminal continues to repeatedly send the downlink control information until the terminal receives the downlink service data information, and sends an ACK feedback message, and the base station stops transmitting the downlink control information after receiving the ACK feedback information.
  • the maximum number of transmissions of the transmission may be set in advance.
  • the base station stops transmitting downlink service data information, and re-schedules the terminal.
  • the terminal determines the corresponding uplink transmission channel resource according to the scheduling information of the downlink transmission channel resource scheduled by the base station, and further receives the downlink information by using the uplink control channel resource when receiving the downlink information.
  • the information or other control information causes the base station to stop transmitting the downlink information repeatedly, meets the requirements of low delay and high reliability of the service, and further saves network transmission resources.
  • the terminal 1000 of the embodiment of the present disclosure can implement the downlink transmission channel resources for detecting downlink information scheduled by the base station in the fifth embodiment and the sixth embodiment; and according to the detected downlink transmission channel resources, Determining the corresponding uplink control channel resource; transmitting the details of the response information or other control information to the base station through the uplink control channel resource, and achieving the same effect, the terminal 1000 specifically includes the following functional modules:
  • the detecting module 1010 is configured to detect downlink transmission channel resources scheduled by the base station for transmitting downlink information.
  • the processing module 1020 is configured to determine, according to the detected downlink transport channel resources, a corresponding uplink control channel resource
  • the sending module 1030 is configured to send, by using the uplink control channel resource, a response message or other control information to the base station, where the response information or other control information includes at least: response feedback information corresponding to the downlink control channel in the downlink transport channel resource.
  • the processing module 1020 includes:
  • the first processing sub-module 1021 is configured to determine a corresponding first uplink control channel resource according to the initial control channel unit CCE of the downlink grant information in the detected downlink transport channel resource.
  • the first processing submodule 1021 further includes:
  • a first calculating unit 10211 configured to Determining a first channel number corresponding to the starting CCE
  • the first processing unit 10212 is configured to determine a channel resource whose channel number is the first channel number as a first uplink control channel resource that transmits uplink control information;
  • a channel number indicating an uplink control channel resource Indicates the starting CCE that receives the downlink authorization information. Indicates the offset of the uplink control channel resource of the service control channel configured by the upper layer.
  • the first processing submodule 1021 includes:
  • a second calculating unit 10213 configured to Determining a first channel number corresponding to the starting CCE
  • the second processing unit 10214 is configured to determine a channel resource whose channel number is the first channel number as a first uplink control channel resource that transmits uplink control information;
  • a channel number indicating an uplink control channel resource Indicates the starting CCE that receives the downlink authorization information.
  • a channel number indicating an uplink control channel resource Indicates the starting CCE that receives the downlink authorization information.
  • For Function under different numerical configurations Corresponding different, Indicates the offset of the uplink control channel resource of the service control channel configured by the upper layer.
  • the sending module 1030 includes:
  • the first sending submodule 1031 is configured to send the first response information or other control information to the base station by using the first uplink control channel resource after detecting the downlink control information transmitted in the downlink transport channel resource.
  • the processing module 1020 further includes:
  • the second processing sub-module 1022 is configured to determine a corresponding second uplink control channel resource according to the starting physical resource block PRB of the downlink data information transmitted in the detected downlink transport channel resource.
  • the second processing sub-module 1022 includes:
  • a third calculating unit 10221 configured to Determining a second channel number corresponding to the starting PRB
  • the third processing unit 10222 is configured to determine a channel resource whose channel number is the second channel number as a second uplink control channel resource that transmits uplink data information.
  • n PRB_start indicates the initial PRB of the downlink service data information.
  • the second processing sub-module 1022 further includes:
  • a fourth calculating unit 10223 configured to Determining a second channel number corresponding to the starting PRB
  • the fourth processing unit 10224 is configured to determine a channel resource whose channel number is the second channel number as a second uplink control channel that transmits uplink data information.
  • n PRB_start indicates the start PRB of the downlink service data information
  • F(n PRB_start ) is a function of n PRB_start .
  • the corresponding F(n PRB_start ) is different.
  • the sending module 1030 further includes:
  • the second sending sub-module 1032 is configured to send the second response information or other control information to the base station by using the second uplink control channel resource after detecting the downlink service data information transmitted in the downlink transport channel resource.
  • the terminal of the embodiment of the present disclosure determines the corresponding uplink transmission channel resource according to the scheduling information of the downlink transmission channel resource scheduled by the base station, and further receives the response information or other control information through the uplink control channel resource when receiving the downlink information.
  • the base station stops transmitting downlink information repeatedly, meets the requirements of low delay and high reliability of the service, and further saves network transmission resources.
  • FIG. 12 is a schematic structural diagram of a terminal according to another embodiment of the present disclosure.
  • the terminal 1200 in FIG. 12 may be a mobile phone, a tablet computer, a personal digital assistant (PDA), or a vehicle-mounted computer.
  • PDA personal digital assistant
  • the terminal 1200 in FIG. 12 includes a power source 1210, a memory 1220, an input unit 1230, a display unit 1240, a processor 1250, a WIFI (Wireless Fidelity) module 1260, an audio circuit 1270, and an RF circuit 1280.
  • a power source 1210 a memory 1220, an input unit 1230, a display unit 1240, a processor 1250, a WIFI (Wireless Fidelity) module 1260, an audio circuit 1270, and an RF circuit 1280.
  • a WIFI Wireless Fidelity
  • the input unit 1230 can be configured to receive information input by the user and generate signal inputs related to user settings and function control of the terminal 1200.
  • the input unit 1230 may include a touch panel 1231.
  • the touch panel 1231 also referred to as a touch screen, can collect touch operations on or near the user (such as the operation of the user using any suitable object or accessory such as a finger or a stylus on the touch panel 1231), and according to the preset
  • the programmed program drives the corresponding connection device.
  • the touch panel 1231 may include two parts: a touch detection device and a touch controller.
  • the touch detection device detects the touch orientation of the user, and detects a signal brought by the touch operation, and transmits the signal to the touch controller; the touch controller receives the touch information from the touch detection device, converts the touch information into contact coordinates, and sends the touch information.
  • the processor 1250 is provided and can receive commands from the processor 1250 and execute them.
  • the touch panel 1231 can be implemented in various types such as resistive, capacitive, infrared, and surface acoustic waves.
  • the input unit 1230 may further include other input devices 1232.
  • the other input devices 1232 may include, but are not limited to, a physical keyboard, function keys (such as a volume control button, a switch button, etc.), a trackball, a mouse, a joystick, and the like. One or more of them.
  • the display unit 1240 can be used to display information input by the user or information provided to the user as well as various menu interfaces of the terminal.
  • the display unit 1240 can include a display panel 1241.
  • the display panel 1241 can be configured in the form of an LCD or an Organic Light-Emitting Diode (OLED).
  • the touch panel 1231 may cover the display panel 1241 to form a touch display screen, and when the touch display screen detects a touch operation on or near it, it is transmitted to the processor 1250 to determine the type of the touch event, and then the processor The 1250 provides a corresponding visual output on the touch display depending on the type of touch event.
  • the touch display includes an application interface display area and a common control display area.
  • the arrangement manner of the application interface display area and the display area of the common control is not limited, and the arrangement manner of the two display areas can be distinguished by up-and-down arrangement, left-right arrangement, and the like.
  • the application interface display area can be used to display the interface of the application. Each interface can contain interface elements such as at least one application's icon and/or widget desktop control.
  • the application interface display area can also be an empty interface that does not contain any content.
  • the common control display area is used to display controls with high usage, such as setting buttons, interface numbers, scroll bars, phone book icons, and the like.
  • the processor 1250 is a control center of the terminal that connects various parts of the entire handset with various interfaces and lines, by running or executing software programs and/or modules stored in the first memory 1221, and by calling the storage in the second memory 1222.
  • the processor 1250 can include one or more processing units.
  • the processor 1250 by calling a software program and/or module stored in the first memory 1221 and/or data in the second memory 1222, the processor 1250 is configured to: detect, by the base station, for transmitting downlink information. a downlink transmission channel resource; determining, according to the detected downlink transmission channel resource, a corresponding uplink control channel resource; and transmitting, by using the uplink control channel resource, a response message or other control information to the base station; wherein the response information or other control information includes at least: The response feedback information corresponding to the downlink control channel in the downlink transport channel resource.
  • the processor 1250 is further configured to: determine, according to the initial control channel unit CCE of the downlink grant information in the detected downlink transport channel resource, the corresponding first uplink control channel resource.
  • the processor 1250 is further configured to: Determining a first channel number corresponding to the starting CCE;
  • a channel number indicating an uplink control channel resource Indicates the starting CCE that receives the downlink authorization information. Indicates the offset of the uplink control channel resource of the service control channel configured by the upper layer.
  • the processor 1250 is further configured to: Determining a first channel number corresponding to the starting CCE;
  • a channel number indicating an uplink control channel resource Indicates the starting CCE that receives the downlink authorization information.
  • a channel number indicating an uplink control channel resource Indicates the starting CCE that receives the downlink authorization information.
  • For Function under different numerical configurations Corresponding different, Indicates the offset of the uplink control channel resource of the service control channel configured by the upper layer.
  • the processor 1250 is further configured to: after detecting the downlink control information transmitted in the downlink transport channel resource, send the first response information or other control information to the base station by using the first uplink control channel resource.
  • the processor 1250 is further configured to: determine, according to the starting physical resource block PRB of the downlink data information transmitted in the detected downlink transport channel resource, a corresponding second uplink control channel resource.
  • the processor 1250 is further configured to: Determining a second channel number corresponding to the starting PRB;
  • n PRB_start indicates the initial PRB of the downlink service data information.
  • the processor 1250 is further configured to: Determining a second channel number corresponding to the starting PRB;
  • n PRB_start indicates the start PRB of the downlink service data information
  • F(n PRB_start ) is a function of n PRB_start .
  • the corresponding F(n PRB_start ) is different.
  • the processor 1250 is further configured to: after detecting the downlink service data information transmitted in the downlink transport channel resource, send the second response information or other control information to the base station by using the second uplink control channel resource.
  • the terminal of the embodiment of the present disclosure determines the corresponding uplink transmission channel resource according to the scheduling information of the downlink transmission channel resource scheduled by the base station, and further receives the response information or other control information through the uplink control channel resource when receiving the downlink information.
  • the base station stops transmitting downlink information repeatedly, meets the requirements of low delay and high reliability of the service, and further saves network transmission resources.
  • the disclosed apparatus and method may be implemented in other manners.
  • the device embodiments described above are merely illustrative.
  • the division of the unit is only a logical function division.
  • there may be another division manner for example, multiple units or components may be combined or Can be integrated into another system, or some features can be ignored or not executed.
  • the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, and may be in an electrical, mechanical or other form.
  • the units described as separate components may or may not be physically separated, and the 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 of the embodiment.
  • each functional unit in various embodiments of the present disclosure may be integrated into one processing unit, or each unit may exist physically separately, 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 separate products, may be stored in a computer readable storage medium. Based on such understanding, a portion of the technical solution of the present disclosure that contributes in essence or to the related art or a part of the technical solution may be embodied in the form of a software product stored in a storage medium, including several The instructions are for causing a computer device (which may be a personal computer, server, or network device, etc.) to perform all or part of the steps of the methods described in various embodiments of the present disclosure.
  • the foregoing storage medium includes various media that can store program codes, such as a USB flash drive, a mobile hard disk, a ROM, a RAM, a magnetic disk, or an optical disk.
  • the objects of the present disclosure can also be achieved by running a program or a set of programs on any computing device.
  • the computing device can be a well-known general purpose device.
  • the objects of the present disclosure may also be realized by merely providing a program product including program code for implementing the method or apparatus. That is to say, such a program product also constitutes the present disclosure, and a storage medium storing such a program product also constitutes the present disclosure.
  • the storage medium may be any known storage medium or any storage medium developed in the future.
  • various components or steps may be decomposed and/or recombined.

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Abstract

La présente invention concerne un procédé de réservation de ressources et un procédé de détermination pour un canal de commande de liaison montante, une station de base et un terminal. Le procédé de réservation de ressource consiste : à planifier une ressource de canal de transmission de liaison descendante pour transmettre des informations de liaison descendante pour le terminal ; selon la ressource de canal de transmission de liaison descendante, à réserver une ressource de canal de commande de liaison montante correspondante pour le terminal ; et à recevoir des informations de réponse ou d'autres informations de commande transmises par le terminal par l'intermédiaire de la ressource de canal de commande de liaison montante. Au moyen de la ressource de canal de transmission de liaison descendante planifiée, la station de base de la présente invention réserve la ressource de canal de commande de liaison montante correspondante pour le terminal, de façon à obtenir une planification et une indication de la ressource de transmission de liaison montante. Lors de la réception des informations de liaison descendante, le terminal renvoie les informations de réponse ou d'autres informations de commande par l'intermédiaire de la ressource de canal de commande de liaison montante, de telle sorte que la station de base arrête la transmission des informations de liaison descendante de manière répétée.
PCT/CN2018/074265 2017-02-08 2018-01-26 Procédé de réservation de ressource et procédé de détermination pour canal de commande de liaison montante, station de base et terminal Ceased WO2018145583A1 (fr)

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