CN116456482A

CN116456482A - Transmission configuration indication state indication method and device for multiple transmitting and receiving nodes and computer readable storage medium

Info

Publication number: CN116456482A
Application number: CN202210017817.4A
Authority: CN
Inventors: 马大为
Original assignee: Beijing Ziguang Zhanrui Communication Technology Co Ltd
Current assignee: Beijing Ziguang Zhanrui Communication Technology Co Ltd
Priority date: 2022-01-07
Filing date: 2022-01-07
Publication date: 2023-07-18
Also published as: WO2023131265A1

Abstract

A transmission configuration indication status indication method and apparatus for multiple transmitting and receiving nodes, a computer readable storage medium, the method comprising: transmitting configuration information, wherein the configuration information comprises a plurality of candidate transmission configuration indication TCI states; and sending state indication information to indicate a target TCI state, wherein the target TCI state is selected from the plurality of candidate TCI states, and before/at the same time, sending association relation indication information to at least indicate a sending and receiving node TRP corresponding to the target TCI state. The beam indication mode suitable for the multi-TRP scene can be provided by the scheme of the invention, so that the terminal can determine the TRP corresponding to the indicated beam, and further correctly perform data transmission according to the TRP.

Description

Transmission configuration indication state indication method and device for multiple transmitting and receiving nodes and computer readable storage medium

Technical Field

The present invention relates to the field of communications technologies, and in particular, to a transmission configuration indication status indication method and apparatus for multiple transmitting and receiving nodes, and a computer readable storage medium.

Background

Based on a New Radio (NR) protocol of the third generation partnership project (3 rd Generation Partnership Project, 3GPP for short), the base station and the terminal determine an optimal transmit-receive beam through a beam training process, so that the transmission reliability of uplink and downlink signals is improved by using the optimal transmit-receive beam. In the beam training and reporting process, the terminal stores the receiving beam corresponding to each reported transmitting beam. In the aspect of beam indication, a base station indicates a transmitting beam to a terminal, and the terminal determines a corresponding receiving beam according to the indicated transmitting beam.

In an actual deployment environment, the uplink and downlink data channels, the control channel and part of the reference signals generally use the same direction of the transceiving beam for communication. Therefore, in the standardization process of the NR system protocol 17 (Release 17, abbreviated as Rel-17), one of the ways to further enhance the Multiple-Input Multiple-Output (MIMO) technology is to introduce a unified beam configuration framework, so as to implement unified indication that uplink and downlink control channels, data channels and reference signals adopt transceiving beams in the same direction.

In the 3GPP Rel-18 stage, a unified beam configuration framework needs to be enhanced to support beam pointing in a Multi-transmit-receive node (Multi-transmission and receiving points, multi-TRP for short, also referred to as Multi-TRP) scenario. In a multi-TRP scenario, the base station needs to indicate one beam for the uplink and downlink control channels, data channels, and reference signals transmitted for each TRP, respectively. How to enhance the beam indication mode, so that the terminal can determine which one of the multiple TRPs corresponds to the beam indicated by the base station, is a problem to be solved in the prior art.

Disclosure of Invention

The invention solves the technical problem of providing a beam indication mode suitable for a multi-TRP scene, so that a terminal can determine TRP corresponding to an indicated beam and further correctly transmit data according to the TRP.

To solve the above technical problem, an embodiment of the present invention provides a transmission configuration indication status indication method for multiple transmitting and receiving nodes, which is applied to a base station, and includes: transmitting configuration information, wherein the configuration information comprises a plurality of candidate transmission configuration indication TCI states; and sending state indication information to indicate a target TCI state, wherein the target TCI state is selected from the plurality of candidate TCI states, and before/at the same time, sending association relation indication information to at least indicate a sending and receiving node TRP corresponding to the target TCI state.

Optionally, an association relationship exists between the plurality of candidate TCI states and the plurality of TRPs.

Optionally, the association relation indication information includes: an association relationship between each candidate TCI state and a plurality of TRPs; or, the association relationship between one or more activated TCI states and a plurality of TRPs, wherein the activated TCI states are selected from the plurality of candidate TCI states, and the target TCI states are selected from the one or more activated TCI states; or, the TRP corresponding to the target TCI state.

Optionally, the association relationship between each candidate TCI state and the plurality of TRPs includes: an association between the identity of each candidate TCI state and the TRP index; or, for each candidate TCI state, the physical cell associated with the candidate TCI state identifies an association between the result of comparing the PCI with the PCI of the serving cell and the plurality of TRPs.

Optionally, the plurality of TRPs includes a first TRP and a second TRP, and the association relationship between the physical cell identifier PCI associated with the candidate TCI state and the PCI of the serving cell and the plurality of TRPs includes: if the PCI associated with the candidate TCI state is the same as the PCI of the service cell, the candidate TCI state is associated with a first TRP; otherwise, the candidate TCI state is associated with a second TRP.

Optionally, the configuration information further includes the association relationship indication information.

Optionally, after sending the configuration information and before sending the status indication information, the method further includes: and sending activation information, wherein the activation information comprises one or more activation TCI states, the activation TCI states are selected from the plurality of candidate TCI states, the target TCI states are selected from the one or more activation TCI states, and the activation information further comprises the association relation indication information.

Optionally, the association relation indication information is sent through the state indication information.

Optionally, the state indication information associates a TRP corresponding to the target TCI state.

To solve the above technical problem, an embodiment of the present invention further provides a transmission configuration indication status indication device for multiple transmitting and receiving nodes, which is integrated in a base station or coupled with the base station, including: the device comprises a first sending module, a second sending module and a third sending module, wherein the first sending module is used for sending configuration information, and the configuration information comprises a plurality of candidate TCI states; the second sending module is configured to send status indication information to indicate a target TCI status, where the target TCI status is selected from the plurality of candidate TCI statuses, and before/at the same time, send association relationship indication information to indicate at least a TRP corresponding to the target TCI status.

In order to solve the above technical problem, an embodiment of the present invention further provides a transmission configuration indication status indication method for multiple transmitting and receiving nodes, which is applied to a terminal, and includes: receiving configuration information, wherein the configuration information comprises a plurality of candidate TCI states; receiving state indication information, wherein the state indication information comprises target TCI states selected from the plurality of candidate TCI states; before/at the same time, receiving incidence relation indicating information, and determining TRP corresponding to the target TCI state according to the incidence relation indicating information.

Optionally, before receiving the status indication information, the method further includes: and receiving activation information, wherein the activation information comprises one or more activation TCI states, the activation TCI states are selected from the plurality of candidate TCI states, the target TCI states are selected from the one or more activation TCI states, and the activation information further comprises the association relation indication information.

Optionally, the association relation indication information is received through the state indication information.

To solve the above technical problem, an embodiment of the present invention further provides a transmission configuration indication status indication device for multiple transmitting and receiving nodes, which is integrated in a terminal or coupled with the terminal, including: a first receiving module, configured to receive configuration information, where the configuration information includes a plurality of candidate TCI states; a second receiving module, configured to receive status indication information, where the status indication information includes a target TCI status selected from a plurality of candidate TCI statuses, where the plurality of candidate TCI statuses have an association relationship with a plurality of TRPs; and the third receiving module is used for receiving the incidence relation indicating information before/at the same time of receiving the state indicating information, and determining the TRP corresponding to the target TCI state according to the incidence relation indicating information.

To solve the above technical problem, embodiments of the present invention further provide a computer readable storage medium, where the computer readable storage medium is a non-volatile storage medium or a non-transitory storage medium, and a computer program is stored thereon, and when the computer program is executed by a processor, the steps of the above method are performed.

To solve the above technical problem, an embodiment of the present invention further provides a transmission configuration indication status indication device for multiple transmitting and receiving nodes, including a memory and a processor, where the memory stores a computer program capable of running on the processor, and the processor executes the steps of the above method when running the computer program.

Compared with the prior art, the technical scheme of the embodiment of the invention has the following beneficial effects:

on the base station side, the embodiment of the invention provides a transmission configuration indication state indication method for multiple sending and receiving nodes, which comprises the following steps: transmitting configuration information, wherein the configuration information comprises a plurality of candidate transmission configuration indication TCI states; and sending state indication information to indicate a target TCI state, wherein the target TCI state is selected from the plurality of candidate TCI states, and before/at the same time, sending association relation indication information to at least indicate a sending and receiving node TRP corresponding to the target TCI state.

Compared with the beam indication mode based on the unified beam configuration framework in the prior art, the embodiment provides the beam indication mode suitable for the multi-TRP scene, so that the base station can also indicate the corresponding TRP to the terminal in the beam indication process, and the terminal can reasonably determine the correct TRP from the plurality of TRPs to perform data transmission.

On the terminal side, the embodiment of the invention provides a transmission configuration indication state indication method for multiple sending and receiving nodes, which comprises the following steps: receiving configuration information, wherein the configuration information comprises a plurality of candidate TCI states; receiving state indication information, wherein the state indication information comprises target TCI states selected from the plurality of candidate TCI states; before/at the same time, receiving incidence relation indicating information, and determining TRP corresponding to the target TCI state according to the incidence relation indicating information.

Compared with the beam indication mode based on the unified beam configuration framework in the prior art, the embodiment provides the beam indication mode suitable for the multi-TRP scene, so that the terminal can determine the TRP corresponding to the indicated beam, and further data transmission is accurately carried out according to the TRP. Specifically, the terminal can determine that the target TCI state indicated by the base station specifically corresponds to a specific TRP of the multiple TRPs, and further receive data such as the target TCI state transmitted by the base station according to the uplink and downlink control channels, the data signals and the reference signals under the specific TRP.

Drawings

Fig. 1 is a flowchart of a first transmission configuration indication status indication method for a multiple transmitting receiving node according to an embodiment of the present invention;

fig. 2 is a schematic structural diagram of a transmission configuration indication status indication device for a multi-transmitting-receiving node according to a second embodiment of the present invention;

fig. 3 is a flowchart of a third transmission configuration indication status indication method for multiple transmitting receiving nodes according to an embodiment of the present invention;

fig. 4 is a schematic structural diagram of a fourth transmission configuration indication status indication device for multiple transmitting and receiving nodes according to an embodiment of the present invention;

FIG. 5 is a signaling interaction diagram of a first exemplary application scenario according to an embodiment of the present invention;

FIG. 6 is a signaling interaction diagram of a second exemplary application scenario according to an embodiment of the present invention;

fig. 7 is a signaling interaction schematic diagram of a third exemplary application scenario according to an embodiment of the present invention.

Detailed Description

As the technical background is said, how to enhance the beam indication mode, so that the terminal can determine which one of the multiple TRPs the beam indicated by the base station specifically corresponds to the uplink and downlink control channel, the data channel and the reference signal, is a problem to be solved by the present protocol.

In order to solve the above technical problems, at a base station side, an embodiment of the present invention provides a transmission configuration indication status indication method for multiple transmitting and receiving nodes, including: transmitting configuration information, wherein the configuration information comprises a plurality of candidate transmission configuration indication TCI states; and sending state indication information to indicate a target TCI state, wherein the target TCI state is selected from the plurality of candidate TCI states, and before/at the same time, sending association relation indication information to at least indicate a sending and receiving node TRP corresponding to the target TCI state.

The embodiment provides a beam indication mode suitable for a multi-TRP scene, so that a base station can also indicate corresponding TRPs to a terminal in a beam indication process, thereby ensuring that the terminal can reasonably determine correct TRPs from a plurality of TRPs to perform data transmission.

In order to make the above objects, features and advantages of the present invention more comprehensible, embodiments accompanied with figures are described in detail below.

Fig. 1 is a flowchart of a first transmission configuration indication status indication method for a multiple transmitting receiving node according to an embodiment of the present invention.

The present embodiment may be applied to a multi-TRP scenario, such as a beam indication scenario between a base station and a terminal supporting multi-TRP transmission. In this embodiment, the beam may be indicated by a transmission configuration indication (Transmission Configuration Indication, abbreviated TCI) state (abbreviated TCI state), such as a transmission beam at the time of data transmission.

In a specific implementation, the transmission configuration indication status indication method provided in the following steps S101 to S102 may be executed by a chip with an information indication function in the network device, or may be executed by a baseband chip in the network device. For example, the network device may include a base station.

Specifically, referring to fig. 1, the TCI state indicating method for multi-TRP according to the present embodiment may include the steps of:

step S101, transmitting configuration information, wherein the configuration information comprises a plurality of candidate transmission configuration indication TCI states;

step S102, transmitting state indication information to indicate a target TCI state, where the target TCI state is selected from the plurality of candidate TCI states, and before/at the same time, transmitting association relation indication information to indicate at least a transmitting-receiving node TRP corresponding to the target TCI state.

Further, there may be an association between the plurality of candidate TCI states and the plurality of TRPs. For example, candidate TCI states may be in one-to-one correspondence with TRPs. For another example, multiple candidate TCI states may correspond to the same TRP.

In one implementation, in step S102, the act of transmitting the association relation instruction information may be performed before transmitting the status instruction information. For example, the configuration information may include association relation indication information, so that the base station may indicate corresponding TRP together while configuring a plurality of candidate TCI states to the terminal.

Specifically, the association relation instruction information may include: association between each candidate TCI state and a plurality of TRPs.

For example, the association indicating information may include an association between an identification of each candidate TCI state and the TRP index.

For another example, the association relationship indication information may include association relationships between a plurality of TRPs and a result of comparing a physical cell identifier (Physical Cell Identify, abbreviated PCI) associated with each candidate TCI state with a PCI of the serving cell. Taking the case where the number of multi-TRP is two (respectively referred to as a first TRP and a second TRP), the content indicated in the association relation indication information may be, for example: if a Reference Signal (RS) included in the candidate TCI state is a synchronization Signal BLOCK (Synchronization Signal/Physical Broadcast Channel Block, SS/PBCH BLOCK, i.e., SSB) or a quasi co-located (QCL) source Reference Signal of the Reference Signal is SSB, and the PCI associated with the SSB is different from the PCI of the serving cell, the candidate TCI state corresponds to the first TRP; otherwise, the candidate TCI state corresponds to a second TRP. The serving cell may be preconfigured, for example, the PCI of the serving cell may be obtained after the terminal accesses the base station.

In this embodiment, each candidate TCI state can be associated with a corresponding TRP through association relationship indication information carried in the configuration information.

In one implementation, in step S102, the act of transmitting the association relation instruction information may be performed before transmitting the status instruction information. For example, after step S101 and before step S102, the present embodiment may further include the steps of: and transmitting activation information, wherein the activation information comprises one or more activation TCI states, the activation TCI states are selected from the plurality of candidate TCI states, and the target TCI states are selected from the one or more activation TCI states.

Specifically, the base station may select one or more candidate TCI states from all candidate TCI states configured to the terminal for activation, where the terminal needs to track signal quality of beams corresponding to the activated TCI states, and maintain corresponding received beams. Then, the base station actually activates one for actual signal transmission from all the active TCI states, and the active TCI state actually activated is the target TCI state.

Further, the activation information further includes the association relation indication information. The association indicating information may include association of one or more activated TCI states with a plurality of TRPs.

For example, the association indicating information may include an association between an identity of each active TCI state and a TRP index.

In this implementation, the base station may indicate to the terminal the TRP corresponding to the activated candidate TCI state while activating one or more candidate TCI states configured to the terminal. Thus, the base station may be more flexible in TRP configuration, e.g. may associate different TRPs each time the same candidate TCI state is activated.

In one implementation, in step S102, the action of sending the association relation instruction information may be performed together with sending the status instruction information. For example, the association relation instruction information may be transmitted through the status instruction information.

Specifically, the association relationship indication information may include TRP corresponding to the target TCI state. Accordingly, the status indication information may be associated with a TRP corresponding to the target TCI status.

For example, the status indication information may indicate an identity of the target TCI status and be carried over a physical downlink control channel (Physical Downlink Control Channel, abbreviated PDCCH) that is also associated with a TRP index corresponding to the target TCI status.

Thus, the base station can more flexibly perform TRP configuration, such as associating different TRPs each time the same target TCI state is activated. Further, the base station pointedly indicates the TRP corresponding to the target TCI state when finally indicating the target TCI state, so that the terminal can accurately know that the target TCI state is applied to the uplink and downlink control channels, the data channels and the reference signals corresponding to the TRP after receiving the state indication information.

In one implementation, after step S102, the steps may also be performed: and transmitting the uplink and downlink control channels, the data channels and the reference signals by the TRPs corresponding to the target TCI state according to the target TCI state. Specifically, the TRP corresponding to the target TCI state may include the base station.

From above, on the base station side, the present embodiment provides a beam indication manner suitable for a multi-TRP scenario, so that the base station can also indicate the corresponding TRP to the terminal in the beam indication process, thereby ensuring that the terminal can reasonably determine the correct TRP from the multiple TRPs for data transmission.

Fig. 2 is a schematic structural diagram of a transmission configuration indication status indicating device for a multi-transmitting-receiving node according to a second embodiment of the present invention. It will be appreciated by those skilled in the art that the transmission configuration indication status indication device 2 for multiple transmitting and receiving nodes according to the present embodiment may be used to implement the method technical solution described in the embodiment shown in fig. 1. The transmission configuration indication status indication device 2 for multiple transmitting and receiving nodes according to the present embodiment may be integrated in a base station or coupled to the base station.

Specifically, referring to fig. 2, the transmission configuration indication status indication apparatus 2 for multiple transmitting and receiving nodes according to the present embodiment may include: a first sending module 21, configured to send configuration information, where the configuration information includes a plurality of candidate TCI states; a second sending module 22, configured to send status indication information to indicate a target TCI status, where the target TCI status is selected from the plurality of candidate TCI statuses, and before/at the same time, send association relationship indication information to indicate at least a TRP corresponding to the target TCI status.

For more details of the working principle and the working manner of the transmission configuration indication status indication device 2 for multiple transmitting and receiving nodes, reference may be made to the related description in fig. 1, which is not repeated herein.

Further, the plurality of candidate TCI states may have an association relationship with a plurality of TRPs.

Further, the association relation indication information may include: an association relationship between each candidate TCI state and a plurality of TRPs; or, the association relationship between one or more activated TCI states and a plurality of TRPs, wherein the activated TCI states are selected from the plurality of candidate TCI states, and the target TCI states are selected from the one or more activated TCI states; or, the TRP corresponding to the target TCI state.

Further, the association relationship between each candidate TCI state and the plurality of TRPs may include: an association between the identity of each candidate TCI state and the TRP index; or, for each candidate TCI state, the physical cell associated with the candidate TCI state identifies an association between the result of comparing the PCI with the PCI of the serving cell and the plurality of TRPs.

Further, the plurality of TRPs includes a first TRP and a second TRP, and the association relationship between the comparison result of the physical cell identity PCI and the PCI of the serving cell and the plurality of TRPs associated with the candidate TCI state may include: if the PCI associated with the candidate TCI state is the same as the PCI of the service cell, the candidate TCI state is associated with a first TRP; otherwise, the candidate TCI state is associated with a second TRP.

In one implementation, the configuration information may further include the association relationship indication information.

In one implementation, the transmission configuration indication status indication apparatus 2 for multiple transmitting and receiving nodes may further include: a third sending module (not shown) configured to send, after sending the configuration information, activation information before sending the status indication information, where the activation information includes one or more activated TCI states, the activated TCI states are selected from the plurality of candidate TCI states, the target TCI states are selected from the one or more activated TCI states, and the activation information further includes the association relation indication information.

In one implementation, the association relation indication information may be sent through the status indication information.

Further, the status indication information may be associated with a TRP corresponding to the target TCI status.

In a specific implementation, the transmission configuration indication status indication device 2 for multiple transmitting and receiving nodes may correspond to a Chip with an information indication function in a network device, or a Chip with a data processing function, for example, a System-On-a-Chip (SOC), a baseband Chip, etc.; or corresponds to a chip module which comprises a chip with an information indication function in the network equipment; or corresponds to a chip module having a chip with a data processing function or corresponds to a network device. For example, the network device may include a base station.

Fig. 3 is a flowchart of a third transmission configuration indication status indication method for multiple transmitting and receiving nodes according to an embodiment of the present invention. The present embodiment may be applied to a multi-TRP scenario, such as a beam indication scenario between a base station and a terminal supporting multi-TRP transmission.

In a specific implementation, the method for indicating the transmission configuration indication status provided in the following steps S301 to S303 may be executed by a chip with an information indication function in a User Equipment (UE) or may be executed by a baseband chip in the UE. For example, the user equipment may comprise a terminal.

Specifically, referring to fig. 3, the transmission configuration indication status indication method for multiple transmitting and receiving nodes according to the present embodiment may include the following steps:

step S301, receiving configuration information, wherein the configuration information comprises a plurality of candidate TCI states;

step S302, receiving state indication information, wherein the state indication information comprises target TCI states selected from the plurality of candidate TCI states;

step S303, determining TRP corresponding to the target TCI state according to association relation indicating information, wherein the association relation indicating information is received at the same time or before receiving the state indicating information.

It will be appreciated by those skilled in the art that the steps S301 to S303 may be regarded as corresponding execution steps to the steps S101 to S102 described in the embodiment shown in fig. 1, and the two steps complement each other in terms of specific implementation principles and logic. Thus, the explanation of the nouns in this embodiment may refer to the related description of the embodiment shown in fig. 1, which is not repeated here.

In one implementation, the act of receiving the association relationship indication information may be performed prior to step S302. For example, the configuration information may include association relation indication information, so that the terminal may learn the corresponding TRP while receiving a plurality of candidate TCI states configured by the base station.

Specifically, the association relation instruction information may include: association between each candidate TCI state and a plurality of TRPs. For example, the association indicating information may include an association between an identification of each candidate TCI state and the TRP index. For another example, for each candidate TCI state, the association relationship indication information may include association relationships between the plurality of TRPs and a comparison result of the physical cell identity PCI and the PCI of the serving cell associated with the candidate TCI state.

Assuming that the plurality of TRPs includes a first TRP and a second TRP, the association relationship indication information may indicate that: if the PCI associated with the candidate TCI state is the same as the PCI of the service cell, the candidate TCI state is associated with a first TRP; otherwise, the candidate TCI state is associated with a second TRP.

Accordingly, after receiving the configuration information, the terminal may perform step S303 before/while/after performing step S302 to determine TRP corresponding to each candidate TCI state according to the association relationship indication information.

Or, after receiving the configuration information, the terminal may store the association relation indication information first, and execute step S302 to receive the state indication information, and then determine the TRP corresponding to the TCI state of the target according to the association relation indication information.

In one implementation, the act of receiving the association relationship indication information may be performed prior to step S302. For example, after step S301, before step S302, the present embodiment may further include the steps of: the method includes receiving activation information, the activation information including one or more activation TCI states, the activation TCI states selected from the plurality of candidate TCI states, the target TCI state selected from the one or more activation TCI states.

Accordingly, after receiving the activation information, the terminal may perform step S303 before/while/after performing step S302 to determine TRP corresponding to each activated TCI state according to the association indication information. At this time, the terminal can perform tracking of channel quality and maintenance of a reception beam according to the determined respective corresponding TRP.

Or, after receiving the activation information, the terminal may store the association relation indication information first, and execute step S302 to receive the state indication information, and then determine the TRP corresponding to the TCI state of the target according to the association relation indication information.

In one implementation, the act of receiving the association relation indication may be performed while performing step S302, for example, the association relation indication information may be transmitted through the status indication information.

In one implementation, after step S303, the method may further include the steps of: and receiving uplink and downlink control channels, data channels and reference signals sent according to the target TCI state from the TRP corresponding to the target TCI state.

In view of the above, the present embodiment provides a beam indication manner applicable to a multi-TRP scenario, so that a terminal can determine a TRP corresponding to an indicated beam, and further correctly perform data transmission according to the TRP. Specifically, the terminal can determine that the target TCI state indicated by the base station specifically corresponds to a specific TRP of the multiple TRPs, and further receive data such as the target TCI state transmitted by the base station according to the uplink and downlink control channels, the data signals and the reference signals under the specific TRP.

Fig. 4 is a schematic structural diagram of a fourth transmission configuration indication status indication device for multiple transmitting and receiving nodes according to an embodiment of the present invention. Those skilled in the art will appreciate that the transmission configuration indication status indicating device 4 for multiple transmitting and receiving nodes according to the present embodiment may be used to implement the method technical solution described in the embodiment shown in fig. 3. The transmission configuration indication status indicating device 4 for multiple transmitting and receiving nodes according to this embodiment may be integrated into or coupled to a terminal.

Specifically, referring to fig. 4, the transmission configuration indication status indication apparatus 4 for multiple transmitting and receiving nodes according to the present embodiment may include: a first receiving module 41, configured to receive configuration information, where the configuration information includes a plurality of candidate TCI states; a second receiving module 42, configured to receive status indication information, where the status indication information includes a target TCI status selected from a plurality of candidate TCI statuses, and the plurality of candidate TCI statuses have an association relationship with a plurality of TRPs; the third receiving module 43 is configured to receive association relation indication information before/at the same time of receiving the state indication information, and determine a TRP corresponding to the target TCI state according to the association relation indication information.

For more details of the working principle and the working manner of the transmission configuration indication status indication device 4 for multiple transmitting and receiving nodes, reference may be made to the related description in fig. 3, which is not repeated herein.

Further, there is an association between the plurality of candidate TCI states and the plurality of TRPs.

Further, the association relation instruction information includes: an association relationship between each candidate TCI state and a plurality of TRPs; or, the association relationship between one or more activated TCI states and a plurality of TRPs, wherein the activated TCI states are selected from the plurality of candidate TCI states, and the target TCI states are selected from the one or more activated TCI states; or, the TRP corresponding to the target TCI state.

Further, the association relationship between each candidate TCI state and the plurality of TRPs includes: an association between the identity of each candidate TCI state and the TRP index; or, for each candidate TCI state, the physical cell associated with the candidate TCI state identifies an association between the result of comparing the PCI with the PCI of the serving cell and the plurality of TRPs.

Further, the plurality of TRPs includes a first TRP and a second TRP, and the association relationship between the comparison result of the physical cell identity PCI and the PCI of the serving cell and the plurality of TRPs associated with the candidate TCI state includes: if the PCI associated with the candidate TCI state is the same as the PCI of the service cell, the candidate TCI state is associated with a first TRP; otherwise, the candidate TCI state is associated with a second TRP.

In one implementation, the configuration information further includes the association relationship indication information.

In one implementation, the transmission configuration indication status indication device 4 for multiple transmitting and receiving nodes may further include: a fourth receiving module (not shown) configured to receive activation information before receiving the status indication information, where the activation information includes one or more activated TCI states, the activated TCI states are selected from the plurality of candidate TCI states, the target TCI states are selected from the one or more activated TCI states, and the activation information further includes the association relation indication information.

In one implementation, the association relationship indication information is received through the status indication information.

Further, the state indication information associates a TRP corresponding to the target TCI state.

In a specific implementation, the transmission configuration indication status indication device 4 for multiple transmitting and receiving nodes may correspond to a Chip with an information indication function in a user equipment, or a Chip with a data processing function, such as a System-On-a-Chip (SOC), a baseband Chip, etc.; or corresponds to the chip module comprising the chip with the information indication function in the user equipment; or corresponds to a chip module having a data processing function chip or corresponds to a user equipment. For example, the user equipment may comprise a terminal.

In a specific implementation, regarding each apparatus and each module/unit included in each product described in the above embodiments, it may be a software module/unit, or a hardware module/unit, or may be a software module/unit partially, or a hardware module/unit partially.

For example, for each device or product applied to or integrated on a chip, each module/unit included in the device or product may be implemented in hardware such as a circuit, or at least part of the modules/units may be implemented in software program, where the software program runs on a processor integrated inside the chip, and the rest (if any) of the modules/units may be implemented in hardware such as a circuit; for each device and product applied to or integrated in the chip module, each module/unit contained in the device and product can be realized in a hardware manner such as a circuit, different modules/units can be located in the same component (such as a chip, a circuit module and the like) or different components of the chip module, or at least part of the modules/units can be realized in a software program, the software program runs on a processor integrated in the chip module, and the rest (if any) of the modules/units can be realized in a hardware manner such as a circuit; for each device, product, or application to or integrated with the terminal, each module/unit included in the device, product, or application may be implemented by using hardware such as a circuit, different modules/units may be located in the same component (for example, a chip, a circuit module, or the like) or different components in the terminal, or at least part of the modules/units may be implemented by using a software program, where the software program runs on a processor integrated inside the terminal, and the remaining (if any) part of the modules/units may be implemented by using hardware such as a circuit.

In a first exemplary application scenario, referring to fig. 5, ue51 and base station 52 may perform the methods shown in fig. 3 and fig. 1, respectively, described above for beam pointing in a multi-TRP scenario. In this application scenario, the base station 52 indicates the beam by the TCI state, that is, the TRP corresponding to the final activated target TCI state, assuming that two TRPs (respectively referred to as the first TRP and the second TRP) are supported altogether.

Specifically, referring to fig. 5, the base station 52 may perform operation s501 to configure a plurality of candidate TCI states to the UE51 and indicate TRP associated with each candidate TCI state.

For example, in operation s501, the base station 52 may directly carry an association relationship between an identity of each candidate TCI state and the TRP index in the configuration information transmitted to the UE 51.

For another example, in operation s501, the base station 52 may indicate in the configuration information sent to the UE51 that the candidate TCI state corresponds to the first TRP if the RS included in the candidate TCI state is SSB (or the QCL source RS of the RS is SSB) and the PCI associated with the SSB is different from the PCI of the serving cell of the UE 51; otherwise, the candidate TCI state corresponds to a second TRP.

Next, the base station 52 may perform operation s502 to activate one or more of the plurality of candidate TCI states previously configured to the UE 51. That is, one or more active TCI states are indicated to the UE51 by the activation information.

In response to receiving the configuration information and the activation information, the UE51 may perform operation s503 to determine TRP corresponding to each activated TCI state according to the association relationship indicated by the aforementioned base station 52.

The base station 52 may then perform operation s504 to indicate the actually used target TCI state to the UE51 through the state indication information.

In response to receiving the status indication information, the UE51 may perform operation s505 to determine from the result of the previous performance of operation s503 that the target TCI status is applied to the uplink and downlink control channel, the data channel, and the reference signal of the corresponding TRP.

Accordingly, the subsequent base station 52 may transmit the uplink and downlink control channels, the data channels and the reference signals according to the target TCI state, and the UE51 may also receive the uplink and downlink control channels, the data channels and the reference signals transmitted by the TRP corresponding to the target TCI state.

In a variation, operation s503 may be omitted, that is, the UE51 may determine the TRP corresponding to the target TCI state according to the association relationship acquired in operation s501 when performing operation s505 only after receiving the target TCI state.

In a second exemplary application scenario, referring to fig. 6, ue61 and base station 62 may perform the methods shown in fig. 3 and fig. 1, respectively, described above for beam pointing in a multi-TRP scenario. In this application scenario, the beam is indicated by the TCI state, and the base station 62 is the TRP corresponding to the final activated target TCI state.

Specifically, referring to fig. 6, the base station 62 may perform operation s601 to configure the UE61 with a plurality of candidate TCI states.

Next, the base station 62 may perform operation s602 to activate one or more of the plurality of candidate TCI states previously configured to the UE 61. That is, one or more active TCI states are indicated to the UE61 by the activation information.

For example, in operation s602, the base station 62 may directly carry an association relationship between an identity of each active TCI state and a TRP index in the activation information transmitted to the UE 61.

In response to receiving the activation information, the UE61 may perform operation s603 to determine TRP corresponding to each activated TCI state according to the association relationship indicated by the aforementioned base station 62.

Then, the base station 62 may perform operation s604 to indicate the actually used target TCI state to the UE61 through the state indication information.

In response to receiving the status indication information, the UE61 may perform operation s605 to determine from the result of the previous performance of operation s603 that the target TCI status is applied to the uplink and downlink control channel, the data channel and the reference signal of the corresponding TRP.

Accordingly, the subsequent base station 62 may transmit the uplink and downlink control channels, the data channels and the reference signals according to the target TCI state, and the UE61 may also receive the uplink and downlink control channels, the data channels and the reference signals transmitted by the TRP corresponding to the target TCI state.

In a variation, operation s603 may be omitted, that is, the UE61 may determine the TRP corresponding to the target TCI state according to the association relationship obtained in operation s602 only after receiving the target TCI state.

In a third exemplary application scenario, referring to fig. 7, ue71 and base station 72 may perform the methods shown in fig. 3 and fig. 1, respectively, described above for beam pointing in a multi-TRP scenario. In this application scenario, the beam is indicated by the TCI state, and the base station 72 is the TRP corresponding to the final activated target TCI state.

Specifically, referring to fig. 7, the base station 72 may perform operation s701 to configure a plurality of candidate TCI states to the UE 71.

Next, the base station 72 may perform operation s702 to activate one or more of the plurality of candidate TCI states previously configured to the UE 71.

Then, the base station 72 may perform operation s703 to indicate the actually used target TCI state to the UE71 through the state indication information and indicate the TPR corresponding to the target TCI state.

For example, the base station 72 may associate the status indication information transmitted to the UE71 with the TRP index to achieve the indication of the association relationship in operation s 703.

In response to receiving the status indication information, the UE51 may perform operation s704 to determine that the target TCI status is applied to the uplink and downlink control channels, the data channels, and the reference signals of the corresponding TRP according to the status indication information.

Accordingly, the subsequent base station 72 may transmit the uplink and downlink control channels, the data channels and the reference signals according to the target TCI state, and the UE71 may also receive the uplink and downlink control channels, the data channels and the reference signals transmitted by the TRP corresponding to the target TCI state.

The embodiment of the invention also provides a computer readable storage medium, which is a non-volatile storage medium or a non-transient storage medium, and a computer program is stored on the computer readable storage medium, and the computer program is executed by a processor to execute the steps of the transmission configuration indication state indication method for multiple sending and receiving nodes provided by any embodiment. Preferably, the storage medium may include a computer-readable storage medium such as a non-volatile (non-volatile) memory or a non-transitory (non-transitory) memory. The storage medium may include ROM, RAM, magnetic or optical disks, and the like.

The embodiment of the invention also provides another transmission configuration indication state indication device for the multi-sending and receiving node, which comprises a memory and a processor, wherein the memory stores a computer program which can be run on the processor, and the processor executes the steps of the transmission configuration indication state indication method for the multi-sending and receiving node provided by the corresponding embodiment of the above-mentioned figure 1 when running the computer program. For example, the transmission configuration indication status indication means for multiple transmitting receiving nodes may be integrated in or coupled to a base station. Alternatively, the transmission configuration indication state indication means for multiple transmitting and receiving nodes may be the base station.

The embodiment of the invention also provides another transmission configuration indication state indication device for the multi-sending and receiving node, which comprises a memory and a processor, wherein the memory stores a computer program which can be run on the processor, and the processor executes the steps of the transmission configuration indication state indication method for the multi-sending and receiving node provided by the corresponding embodiment of the above-mentioned figure 3 when running the computer program. For example, the transmission configuration indication status indication means for multiple transmitting receiving nodes may be integrated in or coupled to the terminal. Alternatively, the transmission configuration indication state indication means for multiple transmitting and receiving nodes may be the terminal.

Those of ordinary skill in the art will appreciate that all or a portion of the steps in the various methods of the above embodiments may be implemented by a program that instructs related hardware, the program may be stored on a computer readable storage medium, and the storage medium may include: ROM, RAM, magnetic or optical disks, etc.

The technical scheme of the invention can be applied to 5G (5 generation) communication systems, 4G and 3G communication systems, and various communication systems of subsequent evolution, such as 6G and 7G. The technical scheme of the invention is also applicable to different network architectures, including but not limited to a relay network architecture, a double link architecture and a Vehicle-to-evaluation (communication from a Vehicle to any object) architecture.

A Base Station (BS), which may also be referred to as a base station device, in the embodiments of the present application is a device deployed in a radio access network to provide a wireless communication function. The apparatus for providing a base station function in the 2G network includes a base Radio transceiver station (base transceiver station, BTS) and a base station controller (base station controller, BSC), the apparatus for providing a base station function in the 3G network includes a node B (NodeB) and a Radio network controller (Radio network controller, RNC), the apparatus for providing a base station function in the 4G network includes an evolved node B (eNB), the apparatus for providing a base station function in the wireless local area network (wireless local area networks, WLAN) is an Access Point (AP), the apparatus for providing a base station function in the 5G New Radio (NR) includes a continuously evolved node B (gNB), and the apparatus for providing a base station function in the future New communication system, and the like.

A terminal in an embodiment of the present application may refer to various forms of User Equipment (UE), an access terminal, a subscriber unit, a subscriber station, a Mobile Station (MS), a remote station, a remote terminal, a mobile device, a user terminal, a terminal device (terminal equipment), a wireless communication device, a user agent, or a user equipment. The terminal device may also be a cellular telephone, a cordless telephone, a session initiation protocol (Session Initiation Protocol, SIP) phone, a wireless local loop (Wireless Local Loop, WLL) station, a personal digital assistant (Personal Digital Assistant, PDA), a handheld device with wireless communication capabilities, a computing device or other processing device connected to a wireless modem, a vehicle-mounted device, a wearable device, a terminal device in a future 5G network or a terminal device in a future evolved public land mobile network (Public Land Mobile Network, PLMN), etc., as the embodiments of the application are not limited in this respect.

The embodiment of the application defines a unidirectional communication link from an access network to a terminal as a downlink, wherein data transmitted on the downlink is downlink data, and the transmission direction of the downlink data is called as a downlink direction; and the unidirectional communication link from the terminal to the access network is an uplink, the data transmitted on the uplink is uplink data, and the transmission direction of the uplink data is called as uplink direction.

The character "/" herein indicates that the front-rear association object is an "or" relationship. The term "plurality" as used in the embodiments herein refers to two or more. The first, second, etc. descriptions in the embodiments of the present application are only used for illustrating and distinguishing the description objects, and no order division is used, nor does it indicate that the number of the devices in the embodiments of the present application is particularly limited, and no limitation on the embodiments of the present application should be construed.

It should be appreciated that in the embodiments of the present application, the processor may be a central processing unit (central processing unit, abbreviated as CPU), and the processor may also be other general purpose processors, digital signal processors (digital signal processor, abbreviated as DSP), application specific integrated circuits (application specific integrated circuit, ASIC), off-the-shelf programmable gate arrays (field programmable gate array, FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, or the like. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.

It should also be appreciated that the memory in embodiments of the present application may be either volatile memory or nonvolatile memory, or may include both volatile and nonvolatile memory. The nonvolatile memory may be a read-only memory (ROM), a Programmable ROM (PROM), an Erasable PROM (EPROM), an electrically Erasable EPROM (EEPROM), or a flash memory. The volatile memory may be random access memory (random access memory, RAM) which acts as an external cache. By way of example but not limitation, many forms of random access memory (random access memory, RAM) are available, such as Static RAM (SRAM), dynamic Random Access Memory (DRAM), synchronous Dynamic Random Access Memory (SDRAM), double data rate synchronous dynamic random access memory (DDR SDRAM), enhanced Synchronous Dynamic Random Access Memory (ESDRAM), synchronous Link DRAM (SLDRAM), and direct memory bus RAM (DR RAM).

It should be understood that, in various embodiments of the present application, the sequence numbers of the foregoing processes do not mean the order of execution, and the order of execution of the processes should be determined by the functions and internal logic thereof, and should not constitute any limitation on the implementation process of the embodiments of the present application.

In the several embodiments provided in the present application, it should be understood that the disclosed method, apparatus, and system may be implemented in other manners. For example, the apparatus embodiments described above are merely illustrative, e.g., the division of the units is merely a logical function division, and there may be additional divisions when actually implemented, e.g., multiple units or components may be combined or integrated into another system, or some features may be omitted or not performed. Alternatively, the coupling or direct coupling or communication connection shown or discussed with each other may be an indirect coupling or communication connection via some interfaces, devices or units, which may be in electrical, mechanical or other form.

The units described as separate units may or may not be physically separate, and units shown as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment. In addition, each functional unit in the embodiments of the present invention may be integrated in one processing unit, or each unit may be physically included separately, or two or more units may be integrated in one unit. The integrated units may be implemented in hardware or in hardware plus software functional units.

The integrated units implemented in the form of software functional units described above may be stored in a computer readable storage medium. The software functional unit is stored in a storage medium, and includes several instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to perform part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a random access Memory (Random Access Memory, RAM), a magnetic disk, or an optical disk, or other various media capable of storing program codes.

Although the present invention is disclosed above, the present invention is not limited thereto. Various changes and modifications may be made by one skilled in the art without departing from the spirit and scope of the invention, and the scope of the invention should be assessed accordingly to that of the appended claims.

Claims

1. A transmission configuration indication status indication method for multiple transmitting and receiving nodes, applied to a base station, comprising:

transmitting configuration information, wherein the configuration information comprises a plurality of candidate transmission configuration indication TCI states;

And sending state indication information to indicate a target TCI state, wherein the target TCI state is selected from the plurality of candidate TCI states, and before/at the same time, sending association relation indication information to at least indicate a sending and receiving node TRP corresponding to the target TCI state.

2. The method of claim 1, wherein there is an association between the plurality of candidate TCI states and a plurality of TRPs.

3. The method according to claim 1 or 2, wherein the association relation indication information includes:

an association relationship between each candidate TCI state and a plurality of TRPs; or alternatively, the process may be performed,

an association of one or more active TCI states with a plurality of TRPs, the active TCI states selected from the plurality of candidate TCI states, the target TCI states selected from the one or more active TCI states; or alternatively, the process may be performed,

the TRP corresponding to the target TCI state.

4. The method of claim 3, wherein the association between each candidate TCI state and the plurality of TRPs comprises:

an association between the identity of each candidate TCI state and the TRP index; or alternatively, the process may be performed,

for each candidate TCI state, the physical cell associated with the candidate TCI state identifies an association between the result of the comparison of PCI with the PCI of the serving cell and the plurality of TRPs.

5. The method of claim 4, wherein the plurality of TRPs comprises a first TRP and a second TRP, wherein the association between the candidate TCI state associated physical cell identity PCI and serving cell PCI comparison and the plurality of TRPs comprises: if the PCI associated with the candidate TCI state is the same as the PCI of the service cell, the candidate TCI state is associated with a first TRP; otherwise, the candidate TCI state is associated with a second TRP.

6. The method according to any one of claims 1 to 5, wherein the configuration information further includes the association relation instruction information.

7. The method according to any one of claims 1 to 5, characterized by further comprising, after transmitting the configuration information, before transmitting the status indication information:

and sending activation information, wherein the activation information comprises one or more activation TCI states, the activation TCI states are selected from the plurality of candidate TCI states, the target TCI states are selected from the one or more activation TCI states, and the activation information further comprises the association relation indication information.

8. The method according to any one of claims 1 to 5, wherein the association relation indication information is transmitted through the status indication information.

9. The method of claim 8, wherein the status indication information associates a TRP corresponding to the target TCI status.

10. A transmission configuration indication status indication apparatus for multiple transmitting and receiving nodes, integrated in or coupled to a base station, comprising:

the device comprises a first sending module, a second sending module and a third sending module, wherein the first sending module is used for sending configuration information, and the configuration information comprises a plurality of candidate TCI states;

the second sending module is configured to send status indication information to indicate a target TCI status, where the target TCI status is selected from the plurality of candidate TCI statuses, and before/at the same time, send association relationship indication information to indicate at least a TRP corresponding to the target TCI status.

11. A transmission configuration indication state indication method for multiple transmitting and receiving nodes, applied to a terminal, comprising:

receiving configuration information, wherein the configuration information comprises a plurality of candidate TCI states;

receiving state indication information, wherein the state indication information comprises target TCI states selected from the plurality of candidate TCI states;

before/at the same time, receiving incidence relation indicating information, and determining TRP corresponding to the target TCI state according to the incidence relation indicating information.

12. The method of claim 11, wherein there is an association between the plurality of candidate TCI states and a plurality of TRPs.

13. The method according to claim 11 or 12, wherein the association relation indication information includes:

the TRP corresponding to the target TCI state.

14. The method of claim 13, wherein the association between each candidate TCI state and the plurality of TRPs comprises:

15. The method of claim 14, wherein the plurality of TRPs comprises a first TRP and a second TRP, wherein the association between the candidate TCI state associated physical cell identity, PCI, and PCI of the serving cell and the plurality of TRPs comprises: if the PCI associated with the candidate TCI state is the same as the PCI of the service cell, the candidate TCI state is associated with a first TRP; otherwise, the candidate TCI state is associated with a second TRP.

16. The method according to any one of claims 11 to 15, wherein the configuration information further includes the association relation instruction information.

17. The method according to any one of claims 11 to 15, further comprising, prior to receiving the status indication information:

and receiving activation information, wherein the activation information comprises one or more activation TCI states, the activation TCI states are selected from the plurality of candidate TCI states, the target TCI states are selected from the one or more activation TCI states, and the activation information further comprises the association relation indication information.

18. The method according to any one of claims 11 to 15, wherein the association relation indication information is received through the status indication information.

19. The method of claim 18, wherein the status indication information associates a TRP corresponding to the target TCI status.

20. A transmission configuration indication status indication device for multiple transmitting and receiving nodes, integrated in or coupled to a terminal, comprising:

a first receiving module, configured to receive configuration information, where the configuration information includes a plurality of candidate TCI states;

A second receiving module, configured to receive status indication information, where the status indication information includes a target TCI status selected from a plurality of candidate TCI statuses, where the plurality of candidate TCI statuses have an association relationship with a plurality of TRPs;

and the third receiving module is used for receiving the incidence relation indicating information before/at the same time of receiving the state indicating information, and determining the TRP corresponding to the target TCI state according to the incidence relation indicating information.

21. A computer readable storage medium, being a non-volatile storage medium or a non-transitory storage medium, having stored thereon a computer program, characterized in that the computer program when executed by a processor performs the steps of the method of any of claims 1 to 9, or any of claims 11 to 19.

22. A transmission configuration indication status indication apparatus for a multiple transmitting receiving node, comprising a memory and a processor, the memory having stored thereon a computer program executable on the processor, characterized in that the processor executes the steps of the method according to any of claims 1 to 9 or any of claims 11 to 19 when the computer program is executed.