A method and device for multipoint transmission uplink control channel indication

Abstract

The present application discloses a method for multi-point transmission uplink control channel indication, comprising the following steps: downlink signaling includes first indication information, the first indication information includes the identifier of one or more TRPs; the downlink signaling also includes the identifier of the uplink beam corresponding to the identifier of the TRP; uplink control information is transmitted through the TRP indicated by the first indication information, occupying the uplink beam corresponding to the identifier of the TRP. The present application also includes an apparatus for implementing the method. The present application solves the problem of how to perform multi-directional beam allocation of uplink control resources under multi-TRP working conditions.

Description

Technical Field

[0001] The present application relates to the field of wireless communication technology, and in particular to a method and device for multipoint transmission uplink control channel indication. Background Art

[0002] The uplink beam used by the uplink control channel is indicated to the terminal by the base station's higher-layer RRC signaling combined with MAC CE signaling. After the uplink beam information for the uplink control channel is configured by RRC higher-layer signaling, it is activated by MAC CE. In NR R15, the base station can configure up to 128 PUCCH resources for the terminal on each BWP in each serving cell. Up to eight uplink beams can be configured via RRC signaling, and one of these beams is activated for each PUCCH resource by MAC CE.

[0003] Release 16 introduced a coordinated multi-point transmission mechanism. The URLLC enhancements based on coordinated multi-point transmission only define downlink data. Research on URLLC enhancements for uplink control channels and other aspects will continue in subsequent standardization releases. Due to the multi-point transmission mechanism for uplink control channels, the uplink control resource indication method for a single TRP is no longer applicable. Summary of the Invention

[0004] This application proposes a method and device for multi-point transmission of uplink control channel indication to solve the problem of how to perform multi-directional beam allocation of uplink control resources under multi-TRP working conditions.

[0005] In a first aspect, the present application proposes a method for multipoint transmission uplink control channel indication, comprising the following steps:

[0006] The downlink signaling includes first indication information, where the first indication information includes identifiers of one or more TRPs;

[0007] The downlink signaling further includes an identifier of an uplink beam corresponding to the identifier of the TRP;

[0008] The uplink control information is transmitted through the TRP indicated by the first indication information, occupying the uplink beam corresponding to the identifier of the TRP.

[0009] Furthermore, the following steps are included:

[0010] The downlink signaling includes second indication information, and the second indication information is used to indicate that the number of TRPs in the downlink signaling is 1 or more.

[0011] Furthermore, the following steps are included:

[0012] The downlink signaling includes third indication information, and the third indication information includes an identifier of a PUCCH resource group;

[0013] Each PUCCH resource group identifier corresponds to at least one TRP identifier;

[0014] The uplink control information is transmitted through the PUCCH resource group and the corresponding TRP.

[0015] Preferably, the downlink signaling is MAC CE signaling or RRC signaling.

[0016] Preferably, the downlink signaling includes identifiers of multiple TRPs. The downlink signaling is RRC signaling, which configures one or more beams corresponding to each TRP identifier; the downlink signaling is MAC CE signaling, which activates one beam corresponding to each TRP identifier.

[0017] Preferably, the second indication information is used to indicate that when the number of TRPs in the downlink signaling is 1, the downlink signaling includes 1 uplink beam identification information and 1 PUCCH resource group identification information. The second indication information is used to indicate that when the number of TRPs in the downlink signaling is multiple, the downlink signaling includes multiple uplink beam identification information and at least 1 PUCCH resource group identification information.

[0018] The method described in any embodiment of the first aspect of the present application, applied to a network device, comprises the following steps:

[0019] Send the downlink signaling; receive uplink control information through the TRP indicated by the first indication information and the uplink beam corresponding to the identifier of the TRP.

[0020] Furthermore, the downlink signaling includes an identifier of a PUCCH resource group corresponding to the TRP; through the PUCCH resource group, uplink control information is received in at least one corresponding TRP and at least one uplink beam corresponding to the at least one TRP.

[0021] The method described in any embodiment of the first aspect of the present application, used in a terminal device, comprises the following steps:

[0022] Receive the downlink signaling; send uplink control information through the TRP indicated by the first indication information and the uplink beam corresponding to the identifier of the TRP.

[0023] Furthermore, the downlink signaling includes an identifier of a PUCCH resource group corresponding to the TRP; through the PUCCH resource group, uplink control information is sent in at least one corresponding TRP and at least one uplink beam corresponding to the at least one TRP.

[0024] On the second aspect, an embodiment of the present application proposes a network device for implementing the multi-point uplink control channel indication method described in any embodiment of the present application, and at least one module in the network device is used for at least one of the following functions: sending the downlink signaling, identifying the TRP identifier, the beam identifier corresponding to the TRP identifier and / or the PUCCH resource group identifier; occupying the TRP, the beam corresponding to the TRP and / or the PUCCH resource group, and receiving uplink control information.

[0025] On the third aspect, an embodiment of the present application proposes a terminal device for implementing the multi-point uplink control channel indication method described in any embodiment of the present application, and at least one module in the terminal device is used for at least one of the following functions: receiving the downlink signaling, identifying the TRP identifier, the beam identifier corresponding to the TRP identifier and / or the PUCCH resource group identifier; occupying the TRP, the beam corresponding to the TRP and / or the PUCCH resource group, and sending uplink control information.

[0026] In a fourth aspect, the present application also proposes a communication device, comprising: a memory, a processor, and a computer program stored on the memory and runnable on the processor, wherein the computer program, when executed by the processor, implements the steps of the method described in any one of the embodiments of the first aspect of the present application.

[0027] In a fifth aspect, the present application further proposes a computer-readable medium, on which a computer program is stored. When the computer program is executed by a processor, the steps of the method described in any embodiment of the first aspect of the present application are implemented.

[0028] In a sixth aspect, the present application also proposes a mobile communication system comprising at least one network device as described in any embodiment of the present application and / or at least one terminal device as described in any embodiment of the present application.

[0029] At least one of the above technical solutions adopted in the embodiments of the present application can achieve the following beneficial effects:

[0030] The uplink beam direction indication method of the uplink control channel when it is sent at multiple points can, by using the proposed indication method, on the one hand, avoid changing the existing beam indication method of the uplink control channel sent at a single point as much as possible, and on the other hand, save signaling overhead, and provide concise and clear indication with very little signaling overhead. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0032] Figure 1 This is a schematic diagram of signaling information in the prior art;

[0033] Figure 2 This is a flow chart of an embodiment of the method of this application;

[0034] Figure 3 This is the first embodiment of the signaling information of this application;

[0035] Figure 4 This is the second embodiment of the signaling information of this application;

[0036] Figure 5 This is the third embodiment of the signaling information of this application;

[0037] Figure 6 This is the fourth embodiment of the signaling information of this application;

[0038] Figure 7 This is a flow chart of an embodiment of the method of the present application used in a network device;

[0039] Figure 8 This is a flow chart of an embodiment of the method of the present application used in a terminal device;

[0040] Figure 9 is a schematic diagram of an embodiment of a network device;

[0041] Figure 10 is a schematic diagram of an embodiment of a terminal device;

[0042] Figure 11 A schematic structural diagram of a network device according to another embodiment of the present invention;

[0043] Figure 12 is a block diagram of a terminal device according to another embodiment of the present invention. DETAILED DESCRIPTION

[0044] To make the purpose, technical solutions, and advantages of this application more clear, the technical solutions of this application will be clearly and completely described below in conjunction with the specific embodiments of this application and the corresponding drawings. Obviously, the embodiments described are only part of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0045] The technical solutions provided by the embodiments of the present application are described in detail below with reference to the accompanying drawings.

[0046] Figure 1 This is a schematic diagram of signaling information in the prior art.

[0047] Because the number of beams actually used by the terminal is far less than the number of PUCCH resources, activating a beam for each PUCCH resource is inefficient. Therefore, R16 divides the PUCCH resources of a BWP into N groups and uses a MAC CE to simultaneously activate the beams of the PUCCH resources in a group. PUCCH resources in the same group use the same beam, reducing signaling overhead. The number of configurable groups in R16 is 2, 3, or 4. Resource grouping is configured through RRC signaling. When a MAC CE activates the beam of a separate PUCCH resource in a group, the beams used by PUCCH resources belonging to the same group as the PUCCH resource are simultaneously updated to the same beam.

[0048] The TS 38.321 standard defines the beam activation / deactivation function of MAC CE signaling. The PUCCH Resource ID field in the MAC CE contains at least one PUCCH resource identifier of the PUCCH resource group. This PUCCH resource group is configured by the high-level RRC signaling resourceGroupToAddModList. When the resource identifier is activated, all PUCCH resources in the PUCCH resource group where this PUCCH resource is located are sent using the corresponding uplink beam. In the standard TS38.321, Figure 2.2-1: Enhanced PUCCH spatial relation activation / deactivation MAC CE, contains the PUCCH resource identifier (PUCCH Resource ID) and the beam identifier (Spatial Relation InfoID), where "R" is a reserved bit.

[0049] Figure 2 This is a flow chart of an embodiment of the method of this application.

[0050] The present application proposes a method for multipoint transmission uplink control channel indication, comprising the following steps 101 to 104:

[0051] Step 101: Downlink signaling includes first indication information, where the first indication information includes identifiers of one or more TRPs.

[0052] The downlink signaling further includes an identifier of an uplink beam corresponding to the identifier of the TRP;

[0053] Preferably, the downlink signaling is MAC CE signaling or RRC signaling.

[0054] Preferably, the downlink signaling includes identifiers of multiple TRPs. The downlink signaling is RRC signaling, which configures one or more beams corresponding to each TRP identifier; the downlink signaling is MAC CE signaling, which activates one beam corresponding to each TRP identifier.

[0055] That is to say, the first indication information in the MAC CE or RRC signaling is used to send the beam group identifier of the uplink control resource. Through the first indication information, it can be determined whether the uplink control resource is sent by a single TRP or multiple TRPs, as well as the specific beam used for the uplink transmission.

[0056] Step 102. Optionally, the downlink signaling includes second indication information, and the second indication information is used to indicate that the number of TRPs in the downlink signaling is 1 or more.

[0057] For example, the MAC CE signaling includes second indication information, indicating that the set PUCCH resource group corresponds to being sent through 1 TRP or N TRPs.

[0058] Step 103: Optionally, the downlink signaling includes third indication information, and the third indication information includes an identifier of a PUCCH resource group;

[0059] In downlink signaling, each PUCCH resource group identifier corresponds to at least one TRP identifier;

[0060] For example, in step 103, the third indication information in the MAC CE signaling includes an identifier of the PUCCH resource group. The MAC CE signaling indicates whether the PUCCH resource group is sent in a single TRP or multiple TRPs, and also indicates the beam occupied by the uplink transmission.

[0061] A TRP identifier is set for each PUCCH resource group identifier, or in other words, a PUCCH resource group identifier is set for each TRP identifier. When a PUCCH resource group identifier corresponds to multiple TRP identifiers, the multiple TRP identifiers are all set with the same PUCCH resource group identifier.

[0062] It should be noted that any one of steps 102 to 103 is optional. In combination with steps 102 to 103, the second indication information is used to indicate that when the number of TRPs in the downlink signaling is 1, the downlink signaling contains 1 uplink beam identification information and 1 PUCCH resource group identification information. The second indication information is used to indicate that when the number of TRPs in the downlink signaling is multiple, the downlink signaling contains multiple uplink beam identification information and at least 1 PUCCH resource group identification information.

[0063] Step 104: Determine resources for transmitting uplink control information through the first indication information, the second indication information, and the third indication information.

[0064] The uplink control information is transmitted through the TRP indicated by the first indication information, occupying the uplink beam corresponding to the identifier of the TRP.

[0065] Through the second indication information, it is determined that the TRP for transmitting the uplink control information is one or more.

[0066] When the downlink signaling includes an identifier of a PUCCH resource group, the uplink control information is transmitted through the PUCCH resource group and the corresponding TRP.

[0067] Figure 3 This is the first embodiment of the signaling information of this application.

[0068] In the uplink control channel beam indication method for multi-point transmission in a wireless communication system proposed in this application, MACCE signaling indicates the grouping identifier of the uplink control resources. Here, the grouping of uplink control resources corresponds to the grouping of uplink transmit beams, PUCCH resource groups or TRPs.

[0069] For example, in the case of multi-TRP low-latency and high-reliability transmission, an uplink PUCCH resource ID can be repeatedly sent using multiple uplink beams to improve reliability.

[0070] One method is to divide the N (N is less than or equal to 8) beams configured by RRC signaling into two groups, introduce the first indication information (TID), and correspond the TID to the two beam groups. TID = 0 corresponds to beam group 0, and TID = 1 corresponds to beam group 1. In addition, the M PUCCH groups configured by RRC signaling correspond to TID = 0 or TID = 1 respectively. On this basis, when the Enhanced PUCCH spatial relation activation / deactivation MAC CE in standard TS 38.321 is activated, the following Figure 3 Make settings ( Figures 3 to 7In the table, the medium gray column indicates other omitted content. It should be noted that: in MAC CE signaling, the PUCCH resource identifier is expressed as PUCCH resource ID, and the PUCCH resource group identifier is expressed as PUCCH resource group ID). For example, RRC indicates that PUCCH resource group 0 contains {resource 0,1,2}, and PUCCH resource group 1 contains {resource 0,3,4}. PUCCH resource group 0 corresponds to TID=0, and PUCCH resource group 1 corresponds to TID=1. When MAC CE is activated, if the beam group for PUCCH resource 0 is activated in group TID=0, and the beam group for PUCCH resource 0 is activated in group TID=1, then PUCCH group 0 is sent uplink according to the activated beam of group TID=0, and PUCCH group 1 is sent uplink according to the activated beam of group TID=1. Since PUCCH resource 0 is in both PUCCH group 0 and PUCCH group 1, PUCCH 0 can be used for TRP transmission corresponding to two TIDs at the same time.

[0071] Another method is to configure N (N is less than or equal to 8) beams through RRC signaling, and map the M PUCCH groups configured by RRC signaling to TID = 0 or TID = 1. When PUCCH resource 0 appears in the MAC CE, a reserved bit is used as the first indication information (TID) to indicate which TRP beam the specific PUCCH resource is used to update.

[0072] For example, RRC indicates that PUCCH resource group 0 contains {resource 0,1,2}, and PUCCH resource group 1 contains {resource 0,3,4}. PUCCH resource group 0 corresponds to TID = 0, and PUCCH resource group 1 corresponds to TID = 1. Since both PUCCH resource group 0 and PUCCH resource group 1 contain PUCCH resource 0, when the TID corresponding to PUCCH resource 0 indicated by the MAC CE activation is 0 and the TID corresponding to PUCCH resource 0 is 1, it means that the beam of PUCCH resource group 0 is used in TRP0, and the beam of PUCCH resource group 1 is used in TRP1. In this way, PUCCH resource 0 is activated for both TRP0 and TRP1 to be transmitted according to the indicated uplink beam.

[0073] It should be noted that in all the embodiments of this application:

[0074] When configuration information is issued through RRC signaling and then activated through MAC CE signaling, if the RRC signaling contains TID information and each TRP corresponds to a group of uplink beams, the MAC CE information may not contain TID information. This is because the correspondence between the specific beam activated by MAC CE signaling and the TRP has been defined in the RRC signaling.

[0075] If TID indication information is not added to the RRC signaling, TID indication information needs to be added to the MAC CE signaling to define the correspondence between the activated beam and the TRP.

[0076] Figure 4 This is the second embodiment of the signaling information of this application.

[0077] The first indication information (TID) of MAC CE indicates the TRP identifier, indicating the TRP used for the uplink beam. The second indication information of MAC CE indicates whether the uplink resource is an identifier (flag) for multiple TRP transmission, that is, each PUCCH group corresponds to a single TRP transmission, or corresponds to multiple TRP transmission.

[0078] One method is to divide the N (N less than or equal to 8) beams configured by RRC signaling into two groups, introduce the first indication information (TID), and associate the TID with the two beam groups: TID = 0 corresponds to beam group 0, and TID = 1 corresponds to beam group 1. When the PUCCH resource indicated by the MAC CE second indication information (flag) is for single-TRP transmission, the uplink beam information of a spatial relation ID is associated with beam group 0 corresponding to TID = 0, that is, TRP0 transmission, and the uplink beam information of a spatial relation ID is associated with beam group 1 corresponding to TID = 1, that is, TRP1 transmission. When the PUCCH resource indicated by the second indication information is for multiple-TRP transmission, the uplink beam information of multiple spatial relation IDs is associated with multiple TRPs respectively. One beam is selected for activation in beam group 0 corresponding to TID = 0, and one beam is selected for activation in beam group 1 corresponding to TID = 1, that is, two TRPs are transmitted simultaneously.

[0079] Another method is to configure N beams through RRC signaling. When the signaling flag of the MAC CE is 0 and the TID is 0, the indicated PUCCH resource is sent for a single TRP, indicating the uplink beam information of a spatial relation, and the uplink beam is used for TRP0. When the flag = 1, the indicated PUCCH resource is sent for multiple TRPs, indicating the uplink beam information of multiple spatial relations corresponding to multiple TRPs respectively, and indicating the TID through the reserved bit of the MAC CE to indicate which TRP the uplink beam is used for.

[0080] When the PUCCH resource indicated by the second indication information (flag) of the MAC CE is transmitted for a single TRP, it indicates the uplink beam information of a spatial relation ID, and the first indication information (TID) indicates which TID the uplink beam information is used for. When the PUCCH resource indicated by the second indication information is transmitted for multiple TRPs, it indicates that the uplink beam information of multiple spatial relation IDs corresponds to multiple TRPs respectively, and the reserved bit of the MAC CE indicates the TID, indicating which TRP the uplink beam is used for.

[0081] Figure 5 This is the third embodiment of the signaling information of this application.

[0082] The first indication information (TID) of MAC CE indicates the TRP identifier, indicating the TRP used for the uplink beam, and the third indication information of MAC CE indicates the grouping of uplink control resources, which is used to identify the uplink transmission beam corresponding to the uplink control resources.

[0083] In the case of multi-TRP low-latency, high-reliability transmission, an uplink PUCCH resource ID can be repeatedly transmitted using multiple uplink beams to improve reliability. RRC signaling indicates that PUCCH resource group 0 contains {resource 0, 1, 2} and PUCCH resource group 1 contains {resource 0, 3, 4}.

[0084] One method is to divide the N (N less than or equal to 8) beams configured by RRC signaling into two groups. A first indication information (TID) is introduced, and the TID is associated with the two beam groups: TID = 0 corresponds to beam group 0, and TID = 1 corresponds to beam group 1. The third indication information in the MAC CE indicates the uplink control resource group identifier (PUCCH resource group ID), indicating the uplink beam direction of the PUCCH resource group.

[0085] Another method is to configure N (N is less than or equal to 8) beams through RRC signaling, and the third indication information of MAC CE indicates the group identifier (PUCCH resource group ID) of the uplink control resource, indicating the uplink beam direction of the PUCCH resource group, TID = 0, indicating that the PUCCH resource group corresponds to the beam of TRP0 to be updated, TID = 1, indicating that the PUCCH resource group corresponds to the beam of TRP1 to be updated.

[0086] Figure 6 This is the fourth embodiment of the signaling information of the present application.

[0087] The first indication information (TID) of the MAC CE indicates the TRP identifier, indicating the TRP used for the uplink beam. The second indication information of the MAC CE indicates the flag (flag) of whether the uplink resource is sent by multiple TRPs, that is, each PUCCH group corresponds to a single TRP or multiple TRPs. The third indication information of the MAC CE indicates the group identifier of the uplink control resource, indicating the uplink transmission beam sent by one TRP or N uplink transmission beams sent by N TRPs.

[0088] One method is to divide the N (N is less than or equal to 8) beams configured by RRC signaling into two groups, introduce the first indication information (TID), and correspond the TID to the two beam groups. TID = 0 corresponds to beam group 0, and TID = 1 corresponds to beam group 1. The MAC CE third indication information indicates the uplink control resource group identifier (PUCCH resource group ID) and indicates the uplink beam direction of the PUCCH resource group.

[0089] Another method is that the RRC signaling configures N (N is less than or equal to 8) beams, and the second indication information (flag) of MAC CE indicates whether the PUCCH group is sent by multiple TRPs, that is, each PUCCH group corresponds to a single TRP or multiple TRPs. For example, when the flag corresponding to the PUCCH resource group is 0, it means that PUCCH resource group 0 is sent by a single TRP. When the flag corresponding to the PUCCH resource group is 1, it means that PUCCH group 1 is sent by multiple TRPs. The third indication information of MAC CE indicates the group identifier of the uplink control resource, indicating an uplink transmission beam sent by one TRP or N uplink transmission beams sent by N TRPs. The first indication information (TID) of MAC CE indicates the TRP identifier, indicating the TRP used for the uplink beam.

[0090] Figure 7 This is a flow chart of an embodiment of the method of the present application used in a network device;

[0091] The method according to any one of the embodiments of the first aspect of the present application, applied to a network device, comprises the following steps 201 to 205:

[0092] Step 201: Determine first indication information, where the first indication information is used to send a beam group identifier, or a TRP identifier, of an uplink control resource.

[0093] Step 202: Determine second indication information, where the second indication information is used to indicate that the number of TRPs indicated in the downlink signaling is one or more;

[0094] Step 203: Determine third indication information, where the third indication information includes an identifier of a PUCCH resource group;

[0095] Step 204: Send the downlink signaling, where the signaling includes first indication information, and further, may include second indication information and / or third indication information;

[0096] Step 205: Receive uplink control information through the TRP, uplink beam, PUCCH resource or resource group indicated by the downlink signaling.

[0097] Uplink control information is received through the TRP indicated by the first indication information and the uplink beam corresponding to the identifier of the TRP.

[0098] Furthermore, one TRP or multiple TRPs are configured / activated through the second indication information.

[0099] Furthermore, when the downlink signaling includes an identifier of a PUCCH resource group corresponding to a TRP, uplink control information is received through the PUCCH resource group in at least one corresponding TRP and at least one uplink beam corresponding to the at least one TRP.

[0100] Figure 8 This is a flow chart of an embodiment of the method of the present application used in a terminal device;

[0101] The method according to any one of the embodiments of the first aspect of the present application, used in a terminal device, comprises the following steps 301 to 304:

[0102] Step 301: Receive the downlink signaling, receive first indication information, and determine the beam group or TRP of the selected uplink control resource;

[0103] Step 302: When the downlink signaling includes second indication information, receive the second indication information and determine whether the indicated number of TRPs is one or more;

[0104] Step 303: When the downlink signaling includes third indication information, receive the third indication information and determine a configured / activated PUCCH resource group;

[0105] Step 304: Determine the resources for sending uplink control information through the indication information in the downlink signaling, including TRP, beam, PUCCH resources or resource groups.

[0106] The uplink control information is sent through the TRP indicated by the first indication information and the uplink beam corresponding to the identifier of the TRP.

[0107] Furthermore, the downlink signaling includes an identifier of a PUCCH resource group corresponding to the TRP; through the PUCCH resource group, uplink control information is sent in at least one corresponding TRP and at least one uplink beam corresponding to the at least one TRP.

[0108] Figure 4 Schematic diagram of a network device embodiment.

[0109] An embodiment of the present application also proposes a network device, using the method of any one of the embodiments of the present application, the network device is used to: send the downlink signaling, identify the TRP identifier, the beam identifier corresponding to the TRP identifier and / or the PUCCH resource group identifier; occupy the TRP, the beam corresponding to the TRP and / or the PUCCH resource group, and receive uplink control information.

[0110] To implement the above technical solution, the present application proposes a network device 400 comprising a network sending module 401 , a network determining module 402 , and a network receiving module 403 .

[0111] The network sending module is used to send the downlink signaling. The information included in the downlink signaling is shown in steps 101 to 103 and will not be repeated here.

[0112] The network determination module is used to determine the grouping of uplink control resources, including a single TRP or multiple TRPs, uplink beams and / or PUCCH resources corresponding to the TRP identifier, and PUCCH resource groups.

[0113] The network receiving module is configured to receive the uplink control information.

[0114] The specific methods for implementing the functions of the network sending module, network determination module, and network receiving module are as described in the various method embodiments of this application and will not be repeated here.

[0115] Figure 5 2 is a schematic diagram of an embodiment of a terminal device.

[0116] The present application also proposes a terminal device, using the method of any one of the embodiments of the present application, the terminal device is used to: receive the downlink signaling, identify the TRP identifier, the beam identifier corresponding to the TRP identifier and / or the PUCCH resource group identifier; occupy the TRP, the beam corresponding to the TRP and / or the PUCCH resource group, and send uplink control information.

[0117] To implement the above technical solution, the present application proposes a terminal device 500 , which includes a terminal sending module 501 , a terminal determining module 502 , and a terminal receiving module 503 .

[0118] The terminal receiving module is used to receive the downlink signaling. The information contained in the downlink signaling is shown in steps 102 to 104 and will not be repeated here.

[0119] The terminal determination module is used to determine the grouping of uplink control resources, including single TRP or multiple TRPs, uplink beams and / or PUCCH resources corresponding to the TRP identifier, and PUCCH resource groups.

[0120] The terminal sending module is used to send uplink control information.

[0121] The specific methods for implementing the functions of the terminal sending module, the terminal determining module, and the terminal receiving module are as described in the various method embodiments of this application and will not be repeated here.

[0122] The terminal device described in this application may refer to a mobile terminal device.

[0123] Figure 6 The structural diagram of a network device according to another embodiment of the present invention is shown. As shown in the figure, the network device 600 includes a processor 601, a wireless interface 602, and a memory 603. The wireless interface can be a plurality of components, namely, a transmitter and a receiver, providing a unit for communicating with various other devices on a transmission medium. The wireless interface implements the communication function with the terminal device, processes wireless signals through receiving and transmitting devices, and the data carried by the signals is communicated with the memory or processor via an internal bus structure. The memory 603 contains a computer program for executing any one of the embodiments of the present application, and the computer program runs or changes on the processor 601. When the memory, processor, and wireless interface circuit are connected through a bus system. The bus system includes a data bus, a power bus, a control bus, and a status signal bus, which will not be described in detail here.

[0124] Figure 7This is a block diagram of a terminal device according to another embodiment of the present invention. Terminal device 700 includes at least one processor 701, memory 702, a user interface 703, and at least one network interface 704. The various components in terminal device 700 are coupled together via a bus system. The bus system is used to enable communication between these components. The bus system includes a data bus, a power bus, a control bus, and a status signal bus.

[0125] The user interface 703 may include a display, a keyboard, or a pointing device, such as a mouse, a trackball, a touch pad, or a touch screen.

[0126] Memory 702 stores executable modules or data structures. The memory may store an operating system and application programs. The operating system includes various system programs, such as a framework layer, a core library layer, and a driver layer, for implementing various basic services and processing hardware-based tasks. Application programs include various application programs, such as media players and browsers, for implementing various application services.

[0127] In an embodiment of the present invention, the memory 702 contains a computer program for executing any one of the embodiments of the present application, and the computer program is run or changed on the processor 701 .

[0128] Memory 702 includes a computer-readable storage medium. Processor 701 reads information from memory 702 and, in conjunction with its hardware, performs the steps of the above-described method. Specifically, the computer-readable storage medium stores a computer program that, when executed by processor 701, implements the steps of any of the above-described method embodiments.

[0129] The processor 701 may be an integrated circuit chip with signal processing capabilities. During implementation, each step of the method of the present application may be completed by hardware integrated logic circuits in the processor 701 or by instructions in the form of software. The processor 701 may be a general-purpose processor, a digital signal processor, an application-specific integrated circuit, an off-the-shelf programmable gate array or other programmable logic device, a discrete gate or transistor logic device, or a discrete hardware component. The various methods, steps, and logic block diagrams disclosed in the embodiments of the present invention may be implemented or executed. The general-purpose processor may be a microprocessor or any conventional processor. The steps of the method disclosed in conjunction with the embodiments of the present invention may be directly implemented as being executed by a hardware decoding processor, or may be executed by a combination of hardware and software modules in the decoding processor.

[0130] Those skilled in the art will appreciate that embodiments of the present invention may be provided as methods, systems, or computer program products. Therefore, the present invention may take the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware. In a typical configuration, the device of the present application includes one or more processors (CPUs), an input / output user interface, a network interface, and a memory.

[0131] Furthermore, the present invention may take the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program codes.

[0132] Therefore, the present application also provides a computer-readable medium storing a computer program, wherein when the computer program is executed by a processor, the steps of the method described in any embodiment of the present application are implemented. For example, the memory 603, 702 of the present invention may include non-permanent memory, random access memory (RAM) and / or non-volatile memory in a computer-readable medium, such as read-only memory (ROM) or flash RAM.

[0133] Computer-readable media includes permanent and non-permanent, removable and non-removable media that can be implemented by any method or technology to store information. The information can be computer-readable instructions, data structures, program modules or other data. Examples of computer storage media include, but are not limited to, phase change memory (PRAM), static random access memory (SRAM), dynamic random access memory (DRAM), other types of random access memory (RAM), read-only memory (ROM), electrically erasable programmable read-only memory (EEPROM), flash memory or other memory technology, compact disc read-only memory (CD-ROM), digital versatile disc (DVD) or other optical storage, magnetic cassettes, magnetic tape, magnetic disk storage or other magnetic storage devices or any other non-transmission media that can be used to store information that can be accessed by a computing device. As defined herein, computer-readable media does not include transitory computer-readable media (transitory media), such as modulated data signals and carrier waves.

[0134] based on Figures 9-12 In addition to the embodiments of the present application, the present application also proposes a mobile communication system, comprising at least one embodiment of any terminal device in the present application and / or at least one embodiment of any network device in the present application.

[0135] It should also be noted that the terms "comprises," "includes," or any other variations thereof are intended to encompass non-exclusive inclusion, such that a process, method, commodity, or apparatus that includes a series of elements includes not only those elements but also other elements not explicitly listed, or includes elements inherent to such process, method, commodity, or apparatus. In the absence of further limitations, an element defined by the phrase "comprises a..." does not exclude the presence of other identical elements in the process, method, commodity, or apparatus that includes the element.

[0136] It should also be noted that the terms "first", "second" and "third" in this application are used to distinguish multiple objects with the same name, rather than to indicate order or size. Unless specifically stated, they have no other special meaning.

[0137] The foregoing is merely an embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various changes and variations. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present application should all be included within the scope of the claims of the present application.

Claims

1. A method for indicating a multipoint uplink control channel, characterized in that: The following steps are involved: The downlink signaling includes first indication information TID, where the first indication information includes identifiers of multiple TRPs; The downlink signaling also includes an uplink beam identifier corresponding to the TRP identifier, where TID=0 corresponds to beam group 0 and TID=1 corresponds to beam group 1. In the downlink signaling, each PUCCH resource group identifier corresponds to at least one TRP identifier; PUCCH resource group 0 corresponds to TID=0 and PUCCH resource group 1 corresponds to TID=1. Occupying an uplink beam corresponding to an identifier of the TRP through the TRP indicated by the first indication information, and transmitting uplink control information through the PUCCH resource group; PUCCH resource 0 is in both PUCCH group 0 and PUCCH group 1; the beam that activates PUCCH resource 0 is grouped in both TID=0 group and TID=1 group. PUCCH group 0 is sent uplink according to the activated beam of TID=0 group, and PUCCH group 1 is sent uplink according to the activated beam of TID=1 group. PUCCH resource 0 is used for TRP transmission corresponding to both TIDs at the same time.

2. The method for indicating a multipoint uplink control channel according to claim 1, wherein: It also includes the following steps: The downlink signaling includes second indication information, and the second indication information is used to indicate that the number of TRPs in the downlink signaling is multiple.

3. The method for multipoint uplink control channel indication according to claim 1, wherein: It also includes the following steps: The downlink signaling includes third indication information, and the third indication information includes an identifier of a PUCCH resource group.

4. The method for multipoint uplink control channel indication according to claim 1, wherein: The downlink signaling is MAC CE signaling or RRC signaling.

5. The method for multipoint uplink control channel indication according to claim 4, wherein: The downlink signaling includes identifiers of multiple TRPs; The downlink signaling is RRC signaling, and one or more beams are configured corresponding to each TRP identifier; The downlink signaling is MAC CE signaling, which activates one beam for each TRP identifier.

6. The method for indicating a multipoint uplink control channel according to claim 2, wherein: The second indication information is used to identify that when the number of TRPs in the downlink signaling is multiple, the downlink signaling includes multiple uplink beam identification information and at least one PUCCH resource group identification information.

7. The method for indicating a multipoint uplink control channel according to any one of claims 1 to 6, used in a network device, characterized in that: Send the downlink signaling; receive uplink control information through the TRP indicated by the first indication information and the uplink beam corresponding to the identifier of the TRP.

8. The method for indicating a multipoint transmission uplink control channel according to claim 7, wherein: The downlink signaling includes an identifier of a PUCCH resource group corresponding to the TRP; Through the PUCCH resource group, uplink control information is received in at least one corresponding TRP and at least one uplink beam corresponding to the at least one TRP.

9. The method for indicating a multipoint uplink control channel according to any one of claims 1 to 6, used in a terminal device, characterized in that: Receive the downlink signaling; send uplink control information through the TRP indicated by the first indication information and the uplink beam corresponding to the identifier of the TRP.

10. The method for indicating a multipoint uplink control channel according to claim 9, wherein: The downlink signaling includes an identifier of a PUCCH resource group corresponding to the TRP; Through the PUCCH resource group, uplink control information is sent in at least one corresponding TRP and at least one uplink beam corresponding to the at least one TRP.

11. A network device, configured to implement the multipoint transmission uplink control channel indication method according to any one of claims 1 to 6, characterized in that: At least one module in the network device is used for at least one of the following functions: sending the downlink signaling, identifying the TRP identifier, the beam identifier corresponding to the TRP identifier and / or the PUCCH resource group identifier; occupying the TRP, the beam corresponding to the TRP and / or the PUCCH resource group, and receiving uplink control information.

12. A terminal device, used to implement the multipoint transmission uplink control channel indication method according to any one of claims 1 to 6, characterized in that: At least one module in the terminal device is used for at least one of the following functions: receiving the downlink signaling, identifying the TRP identifier, the beam identifier corresponding to the TRP identifier and / or the PUCCH resource group identifier; occupying the TRP, the beam corresponding to the TRP and / or the PUCCH resource group, and sending uplink control information.

13. A communication device, characterized in that: include: A memory, a processor, and a computer program stored in the memory and executable on the processor, wherein when the computer program is executed by the processor, the steps of the multi-point transmission uplink control channel indication method according to any one of claims 1 to 10 are implemented.

14. A computer-readable medium storing a computer program, wherein the computer-readable medium implements the steps of the multipoint transmission uplink control channel indication method according to any one of claims 1 to 10 when the computer program is executed by a processor.

15. A mobile communication system comprising at least one network device according to claim 11 and / or at least one terminal device according to claim 12.

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