CN114727405A

CN114727405A - Indication method, device, terminal, base station and storage medium for transmission configuration indication

Info

Publication number: CN114727405A
Application number: CN202210487542.0A
Authority: CN
Inventors: 王晓云; 左君; 王飞; 郑毅; 曹昱华
Original assignee: China Mobile Communications Group Co Ltd; China Mobile Communications Ltd Research Institute
Current assignee: China Mobile Communications Group Co Ltd; China Mobile Communications Ltd Research Institute
Priority date: 2022-05-06
Filing date: 2022-05-06
Publication date: 2022-07-08
Also published as: WO2023213194A1

Abstract

The application discloses an indication method, an indication device, a terminal, a base station and a storage medium for transmission configuration indication, which relate to the technical field of wireless, wherein the method comprises the following steps: a first terminal receives first DCI; wherein the first DCI is used to indicate a first TCI state group of at least one TCI state group; the at least one TCI state group is activated by a first MAC-CE signaling based on RRC configured TCI states; each TCI status group is used to indicate at least one TCI status. The method and the device can realize the indication of the beam information of various combinations based on the Unifield TCI framework, so that the Unifield TCI framework is not only suitable for the scene of a single transceiving node any more, and the beam indication of different transceiving nodes can be accurately realized under the multi-TRP scene.

Description

Indication method, device, terminal, base station and storage medium for transmission configuration indication

Technical Field

The present invention relates to the field of wireless technologies, and in particular, to an indication method, an apparatus, a terminal, a base station, and a storage medium for Transmission Configuration Indicator (TCI).

Background

The TCI status is used to indicate beams of different channels and/or reference signals. In order to save signaling overhead and reduce indication delay, a Unified TCI architecture (Unified TCI) is introduced in the related art. In the Unified TCI architecture, however, the Unified TCI architecture cannot implement beam pointing in a multi-transmit and receive Points (multi-TRP) scenario.

Disclosure of Invention

In order to solve the related technical problem, embodiments of the present application provide an indication method, an apparatus, a terminal, a base station, and a storage medium for transmission configuration indication.

The technical scheme of the embodiment of the application is realized as follows:

the embodiment of the application provides an indication method of a TCI, which is applied to a first terminal and comprises the following steps:

receiving first Downlink Control Information (DCI); wherein the content of the first and second substances,

the first DCI is used for indicating a first TCI state group in at least one TCI state group; the at least one TCI state group is activated by a TCI state configured by a first Media Access Control layer Control unit (MAC-CE) signaling based on Radio Resource Control (RRC); each TCI status group is used to indicate at least one TCI status.

In the above scheme, each TCI status group is used to indicate 1 or 2 or 3 or 4 TCI statuses.

In the above scheme, each TCI status group activated by the first MAC-CE signaling at least includes one of the following information:

the number of TCI states included in the TCI state group or the first TCI state in the TCI state group;

an index of TCI states included in the TCI state group;

a group identification indicating a TCI status;

indicating the TCI status as a downlink (DL, Down Link) TCI status or an uplink (UL, Up Link) TCI status.

In the above scheme, the group identifier represents a group identifier of a Control resource set (CORESET) and/or a Physical Uplink Control Channel (PUCCH).

In the above scheme, the method further comprises:

after the first TCI state group indicated by the first DCI takes effect, determining CORESET and/or PUCCH which needs to be updated according to information included in the first TCI state group.

In the foregoing solution, the determining, according to information included in the first TCI state group, a CORESET and/or a PUCCH that needs to be updated includes:

and updating the TCI state of the CORESET and/or PUCCH identified by the first group into the TCI state identified by the corresponding group.

In the above scheme, under the condition that the first TCI state group includes a DL TCI state, the TCI state of the CORESET identified by the first group is updated to a corresponding DL TCI state;

and under the condition that the first TCI state group comprises the UL TCI state, updating the spatial relationship of the PUCCH identified by the first group into the corresponding UL TCI state.

The embodiment of the present application further provides a method for indicating a TCI, which is applied to a first base station, and includes:

transmitting a first DCI to a first terminal; wherein the content of the first and second substances,

the first DCI is used for indicating a first TCI state group in at least one TCI state group; the at least one TCI state group is activated by a first MAC-CE signaling based on RRC configured TCI states; each TCI state group is for indicating at least one TCI state.

an index of TCI states included in the TCI state group;

a group identification indicating a TCI status;

indicating that the TCI status is either DL TCI status or UL TCI status.

In the above scheme, the group identifier represents a group identifier of CORESET and/or PUCCH.

The embodiment of the present application further provides an indication device of a TCI, including:

a receiving unit configured to receive a first DCI; wherein the content of the first and second substances,

the first DCI is used for indicating a first TCI state group in at least one TCI state group; the at least one TCI state group is activated by a first MAC-CE signaling based on RRC configured TCI states; each TCI status group is used to indicate at least one TCI status.

a transmitting unit configured to transmit a first DCI to a first terminal; wherein the content of the first and second substances,

An embodiment of the present application further provides a first terminal, including: a first processor and a first communication interface; wherein the content of the first and second substances,

the first communication interface is used for receiving first DCI; wherein the content of the first and second substances,

The embodiment of the present application further provides a first base station, including: a second processor and a second communication interface; wherein the content of the first and second substances,

the second communication interface is used for sending the first DCI to the first terminal; wherein the content of the first and second substances,

An embodiment of the present application further provides a first terminal, including: a first processor and a first memory for storing a computer program capable of running on the processor,

wherein the first processor is configured to execute the steps of any one of the above-mentioned methods at the first terminal side when running the computer program.

The embodiment of the present application further provides a first base station, including: a second processor and a second memory for storing a computer program capable of running on the processor,

wherein the second processor is configured to execute the steps of any one of the above-mentioned methods at the first base station side when running the computer program.

An embodiment of the present application further provides a storage medium, on which a computer program is stored, where the computer program, when executed by a processor, implements the steps of any one of the methods on the first terminal side or implements the steps of any one of the methods on the first base station side.

In the TCI indication method, apparatus, terminal, base station, and storage medium provided in this application, a first terminal receives a first DCI sent by a first base station, where the first DCI is used to indicate a first TCI status group in at least one TCI status group; the at least one TCI state group is activated by a first MAC-CE signaling based on RRC configured TCI states; each TCI status group is used to indicate at least one TCI status. According to the scheme, the beam information of various combinations can be indicated based on the Unified TCI framework, so that the Unified TCI framework is not only suitable for the scenes of single-transmitting and Receiving nodes (single-TRP), but also can accurately indicate the beams of different transmitting and Receiving nodes under the scenes of multi-transmitting and Receiving nodes (multi-TRP).

Drawings

Fig. 1 is a schematic flowchart of a DCI indication method according to an embodiment of the present disclosure;

fig. 2 is a schematic flowchart of another DCI indication method according to an embodiment of the present application;

FIG. 3 is a diagram illustrating a TCI status group activated by MAC-CE signaling according to an embodiment of the present application;

fig. 4 is a schematic structural diagram of an indicating apparatus for DCI according to an embodiment of the present disclosure;

fig. 5 is a schematic structural diagram of another indicating apparatus for DCI according to an embodiment of the present application;

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

fig. 7 is a schematic structural diagram of a first base station according to an embodiment of the present application.

Detailed Description

The TCI status is used to indicate the beams of different channels and/or reference signals. Taking a Physical Downlink Shared Channel (PDSCH) as an example, a signaling structure of RRC + MAC-CE, Media Access Control-Control Element + DCI is adopted to indicate a TCI state: RRC configures available TCI state sets; MAC-CE activates some TCI states from the available TCI state set; through DCI signaling, one TCI state is indicated from among activated TCI states for indicating spatial reception parameters of a PDSCH Demodulation Reference Signal (DMRS).

In the related art, different commands are required to respectively instruct beams or spatial parameters of a PUCCH, a Physical Uplink Shared Channel (PUSCH), a Physical Downlink Control Channel (PDCCH), and a PDSCH, but there may be a case where beam directions of some channels are the same or even beam directions adopted by all channels are the same. In order to save signaling overhead and reduce indication delay, a Unified TCI architecture is introduced in the related art. In the Unified TCI architecture, the beam of the downlink channel and/or the uplink channel can be updated through one DCI signaling or one MAC-CE signaling. In particular, corresponding to different TCI states:

joint (joint TCI): the beam directions of the uplink and downlink channels are the same, and the beam of the uplink channel and the beam of the downlink channel are updated simultaneously by one signaling;

independent (separate TCI): the beam directions of the uplink channels (PUSCH, PUCCH) are the same, and the beam directions of the downlink channels (PDSCH, PDCCH) are the same, but the beam directions of the uplink channels and the downlink channels are different. One signaling may update: 1. beams of PDCCH and PDSCH; 2. beams of PUSCH and PUCCH; 3. PDCCH, PDSCH, PDCCH, and PDSCH.

In practical application, whether the joint TCI or the separate TCI is adopted is configured by RRC. The Unified TCI architecture also adopts a signaling architecture of RRC + MAC-CE + DCI, when the RRC is configured with a plurality of joint TCIs or separate DL/UL TCI states and the MAC-CE signaling only activates one TCI state, the activated TCI state is the selected TCI; when the MAC-CE signaling activates a plurality of TCI states, a TCI state is selected from among the activated TCI states through DCI format1_1 or DCI format1_ 2.

At present, the Unified TCI architecture is only suitable for a single transceiving node scene, and beam indication cannot be realized in a multi-TRP scene.

Wherein the beam indication case of a multi-TRP scene is more complex than for a single TRP, in particular, the following cases are included:

the first condition is as follows: both the TRP0 and the TRP1 are joint TCI working modes, the terminal obtains the TCI of the TRP0 or the TCI of the TRP1 or the TCI of the TRP0+ TRP1 according to the indicated information, and 1 or 2 TCI states need to be indicated;

case 2: both TRP0 and TRP1 are separate TCI modes of operation, which include the following indications:

1. the DCI indicates a TCI status of one TRP, and the indicated TCI status may be UL TCI or DL TCI or UL + DL TCI.

2. The DCI indicates TCI states of two TRPs, and the indicated TCI states may be UL TCI or DL TCI or UL + DL TCI.

In case 2, 1 or 2 or 3 or 4 TCI states are indicated.

Case 3: one TRP is joint TCI working mode, the other TRP is separate TCI working mode, and the TRP0 is assumed to be joint TCI working mode, and the TRP1 is separate TCI working mode, which includes the following indication cases:

1. DCI indicates the TCI of TRP 0.

2. The DCI indicates the UL TCI or DL TCI or UL + DL TCI of TRP 1.

3. The DCI indicates the TCI of TRP0+ the UL TCI or DL TCI or UL + DL TCI of TRP 1.

In case 3, 1 or 2 or 3 TCI states are indicated.

Based on the three cases listed above, after extending the Unified TCI architecture to a multi-TRP scenario, it is necessary to solve the problem of how to indicate different combinations of beam information for different cases.

Based on this, in embodiments of the present application, a first terminal receives a first DCI sent by a first base station, where the first DCI is used to indicate a first TCI status group in at least one TCI status group; the at least one TCI state group is activated by a first MAC-CE signaling based on RRC configured TCI states; each TCI status group is used to indicate at least one TCI status. The scheme can realize the indication of the beam information of various combinations based on the Unifield TCI framework, so that the Unifield TCI framework is not only suitable for the scene of a single receiving and transmitting node any more, and the beam indication of different receiving and transmitting nodes can be accurately realized under the multi-TRP scene.

The present application will be described in further detail with reference to the following drawings and examples.

An embodiment of the present application provides a method for indicating a TCI, which is applied to a first terminal, and as shown in fig. 1, the method includes:

step 101: a first DCI is received.

Wherein the first DCI is used to indicate a first TCI status group of at least one TCI status group; the at least one TCI state group is activated by a first MAC-CE signaling based on RRC configured TCI states; each TCI status group is used to indicate at least one TCI status.

Here, to solve the problem of how to indicate beam information of different combinations for different situations, a signaling architecture of RRC + MAC-CE + DCI is used, where RRC configures a plurality of TCI states, including joint TCI and/or separate TCI, and MAC-CE signaling activates one or more TCI state groups, each of which includes one or more TCI states, based on the RRC configured TCI states. The base station issues DCI to the terminal, the DCI is used for indicating a TCI state group, and the TCI state group can carry a plurality of TCI states, so that the TCI state group can be indicated to the terminal through the DCI, and indication of beam information of various combinations is realized.

In practice, to indicate at least the three different situations described above, in one embodiment, each TCI status group is used to indicate 1 or 2 or 3 or 4 TCI statuses. That is, a codepoint (codepoint) of 1 TCI field may indicate 1 or 2 or 3 or 4 TCI states, depending on the number requirements for TCI states for the different cases listed above. The TCI status indicated by each codepoint is associated with a TCI status group for which MAC-CE signaling is active. In an embodiment, each TCI status group for which the first MAC-CE signaling is active includes at least one of:

an index of TCI states included in the TCI state group;

a group identification indicating a TCI status;

indicating that the TCI status is either DL TCI status or UL TCI status.

Wherein, the group identifier indicating the TCI status is used to identify a Transmission and reception node (TRP). For example, taking a multi-transceiver scenario as an example, a group id "0" is used to identify TRP0, a corresponding TCI status is associated with TRP0, a group id "1" is used to identify TRP1, and a corresponding TCI status is associated with TRP 1. Or, the group identification is used for identifying the CORESET and/or the PUCCH and characterizing the group identification of the CORESET and/or the PUCCH.

In addition, after the Unified TCI architecture is extended to a multi-TRP scenario, the problem of how to update the beam after the terminal receives the beam indication information needs to be solved. In order to solve the problem, in this example, the CORESET and the PUCCH are grouped, and when the DCI indicates a certain TCI state group, which CORESET and/or PUCCH TCI state needs to be updated is determined according to a group identifier corresponding to a TCI state in the TCI state group. Based on this, in an embodiment, the method further comprises:

Specifically, the determining, according to the information included in the first TCI state group, a CORESET and/or a PUCCH that needs to be updated includes:

That is, based on the group identifier associated with the TCI state in the first TCI state group, the CORESET and/or the PUCCH are found, and the found CORESET and/or PUCCH are determined as the CORESET and/or PUCCH whose TCI state needs to be updated, so as to update the TCI state.

Further, under the condition that the first TCI state group comprises a DL TCI state, updating the TCI state of CORESET identified by the first group into a corresponding DL TCI state;

That is to say, for the join TCI, after the DCI indication takes effect, determining the CORESET and the PUCCH corresponding to the group identifier associated with the TCI state in the indicated TCI state group, and updating the determined CORESET and PUCCH TCI state to the TCI state corresponding to the indicated TCI state group;

for the case of separate TCI, after the indication of the DCI takes effect, when the indicated TCI state group includes a DL TCI state, updating the TCI state of CORESET corresponding to the group identifier associated with the DL TCI state to the DL TCI state; when the indicated TCI state group comprises the UL TCI state, after the indication is effective, updating the TCI state of the PUCCH corresponding to the group identification associated with the UL TCI state to the UL TCI state.

Correspondingly, an embodiment of the present application provides a method for indicating a TCI, which is applied to a first base station, and as shown in fig. 2, the method includes:

step 201: and transmitting the first DCI to the first terminal.

Wherein the first DCI is used to indicate a first TCI status group of at least one TCI status group; the at least one TCI state group is activated by a first MAC-CE signaling based on RRC configured TCI states; each TCI state group is for indicating at least one TCI state.

In practice, to indicate at least the three different situations, in one embodiment, each TCI status group is used to indicate 1 or 2 or 3 or 4 TCI statuses. That is, a codepoint of 1 TCI field may indicate 1 or 2 or 3 or 4 TCI states, depending on the number requirements for TCI states for the different cases listed above. The TCI status indicated by each codepoint is associated with a TCI status group for which MAC-CE signaling is active. In an embodiment, each TCI status group for which the first MAC-CE signaling is active includes at least one of:

an index of TCI states included in the TCI state group;

a group identification indicating a TCI status;

indicating that the TCI status is either DL TCI status or UL TCI status.

Wherein the group identity indicating the TCI status is used to identify the TRP. For example, taking a multi-transceiver scenario as an example, a group id "0" is used to identify TRP0, a corresponding TCI status is associated with TRP0, a group id "1" is used to identify TRP1, and a corresponding TCI status is associated with TRP 1. Or, the group identifier is used for identifying the CORESET and/or the PUCCH and characterizing the group identifier of the CORESET and/or the PUCCH.

According to the TCI indication method provided by the implementation of the application, a first terminal receives first DCI sent by a first base station, wherein the first DCI is used for indicating a first TCI state group in at least one TCI state group; the at least one TCI state group is activated by a first MAC-CE signaling based on RRC configured TCI states; each TCI status group is used to indicate at least one TCI status. The above scheme can realize indication of beam information of various combinations based on the Unifield TCI framework, so that the Unifield TCI framework is no longer only suitable for a single transceiving node scene, and can accurately realize beam indication of different transceiving nodes under a multi-transceiving node scene.

The present application will be described in further detail with reference to the following application examples.

The application embodiment combines the scenario of multiple receiving and transmitting nodes, wherein both TRP0 and TRP1 are joint TCI operating modes, RRC configures 1 TCI state list including 16 joint TCI states, and MAC-CE signaling activates part of the TCI therein, as shown in fig. 3, to form 8 TCI state groups.

Referring to fig. 3, the field in the first column is used to identify whether the corresponding TCI status is the first TCI status of the TCI status group, and a "0" indicates that the TCI status is the first TCI status of the TCI status group. The second column of fields is used to identify the group identification with which the TCI state is associated, and the third column of fields is used to identify the ID of the TCI state.

In practical application, when the TCI field (field) of the DCI is 100, the 4 th TCI state set in the MAC-CE message is indicated. As shown in fig. 3, the 4 th TCI state group contains 2 TCI states: TCI state 1000 and TCI state 1010, where TCI state 1000 is associated with a group identification of "0" and TCI state is associated with a group identification of "1".

After the DCI indication is valid, the terminal assumes: the received DMRS of the PDCCH of the CORESET associated with the group "0" has a spatial quasi-co-location relationship with the reference signal of the TCI state having the ID of 1000, and the spatial transmission parameter of the PUCCH associated with the group "0" is determined by the TCI state having the ID of 1000. Similarly, the UE assumes: the received DMRS of the PDCCH of CORESET related to the group '1' has a spatial quasi-co-location relation with the reference signal of the TCI state with the ID of 1010, and the spatial transmission parameter of the PUCCH related to the group '1' is determined by the TCI state with the ID of 1010.

In order to implement the method at the first terminal side in the embodiment of the present application, an embodiment of the present application further provides an indication apparatus of a TCI, which is disposed on the first terminal, and as shown in fig. 4, the apparatus includes:

a receiving unit 401, configured to receive a first DCI; wherein, the first and the second end of the pipe are connected with each other,

Wherein, in an embodiment, each TCI status group is used to indicate 1 or 2 or 3 or 4 TCI statuses.

In an embodiment, each TCI status group for which the first MAC-CE signaling is active includes at least one of:

an index of a TCI state included in the TCI state group;

a group identification indicating a TCI status;

indicating that the TCI status is either DL TCI status or UL TCI status.

In an embodiment, the group identity characterizes a group identity of the CORESET and/or PUCCH.

In one embodiment, the apparatus further comprises:

a determining unit, configured to determine, after the first TCI status group indicated by the first DCI takes effect, a CORESET and/or a PUCCH that needs to be updated according to information included in the first TCI status group.

In an embodiment, the determining unit is configured to:

In an embodiment, in a case that the first TCI state group includes a DL TCI state, updating the TCI state of the first group identified CORESET to the corresponding DL TCI state;

In actual application, the receiving unit 401 may be implemented by a communication interface in a pointing device of the TCI; the determination unit may be implemented by a processor in the indication means of the TCI.

In order to implement the method at the first base station side in the embodiment of the present application, an embodiment of the present application further provides an indication apparatus of a TCI, which is disposed on the first base station, and as shown in fig. 5, the apparatus includes:

a sending unit 501, configured to send a first DCI to a first terminal; wherein the content of the first and second substances,

an index of a TCI state included in the TCI state group;

a group identification indicating a TCI status;

indicating that the TCI status is either DL TCI status or UL TCI status.

In practical applications, the sending unit 501 may be implemented by a communication interface in a pointing device of the TCI.

It should be noted that: in the above embodiment, when the TCI is indicated, the above-mentioned division of the program modules is merely used as an example, and in practical applications, the above-mentioned processing may be distributed and completed by different program modules according to needs, that is, the internal structure of the apparatus may be divided into different program modules to complete all or part of the above-mentioned processing. In addition, the TCI indicating apparatus provided in the foregoing embodiment and the TCI indicating method embodiment belong to the same concept, and details of a specific implementation process thereof are shown in the method embodiment, and are not described herein again.

Based on the hardware implementation of the program module, and in order to implement the method at the first terminal side in the embodiment of the present application, an embodiment of the present application further provides a first terminal, as shown in fig. 6, the first terminal 600 includes:

a first communication interface 601, which is capable of performing information interaction with other network nodes;

the first processor 602 is connected to the first communication interface 601 to implement information interaction with other network nodes, and is configured to execute the method provided by one or more technical solutions of the first terminal side when running a computer program. And the computer program is stored on the first memory 603.

Specifically, the first communication interface 601 is configured to receive first DCI; wherein the content of the first and second substances,

an index of TCI states included in the TCI state group;

a group identification indicating a TCI status;

indicating that the TCI status is either DL TCI status or UL TCI status.

In an embodiment, the first processor 602 is configured to determine, after the first TCI status group indicated by the first DCI takes effect, a CORESET and/or a PUCCH that needs to be updated according to information included in the first TCI status group.

In an embodiment, the first processor 602 is configured to:

and updating the TCI state of the CORESET and/or PUCCH identified by the first group into the TCI state of the corresponding group identification.

It should be noted that: the specific processing procedures of the first processor 602 and the first communication interface 601 can be understood with reference to the above-described methods.

Of course, in practice, the various components of the first terminal 600 are coupled together by a bus system 604. It is understood that the bus system 604 is used to enable communications among the components. The bus system 604 includes a power bus, a control bus, and a status signal bus in addition to a data bus. For clarity of illustration, however, the various buses are labeled as bus system 604 in fig. 6.

The first memory 603 in the embodiment of the present application is used to store various types of data to support the operation of the first terminal 600. Examples of such data include: any computer program for operating on the first terminal 600.

The method disclosed in the embodiment of the present application may be applied to the first processor 602, or implemented by the first processor 602. The first processor 602 may be an integrated circuit chip having signal processing capabilities. In implementation, the steps of the above method may be implemented by an integrated logic circuit of hardware or an instruction in the form of software in the first processor 602. The first Processor 602 may be a general purpose Processor, a Digital Signal Processor (DSP), or other programmable logic device, discrete gate or transistor logic device, discrete hardware components, etc. The first processor 602 may implement or perform the methods, steps and logic blocks disclosed in the embodiments of the present application. A general purpose processor may be a microprocessor or any conventional processor or the like. The steps of the method disclosed in the embodiments of the present application may be directly implemented by a hardware decoding processor, or implemented by a combination of hardware and software modules in the decoding processor. The software modules may be located in a storage medium located in the first memory 603, and the first processor 602 reads the information in the first memory 603 and, in conjunction with its hardware, performs the steps of the foregoing method.

In an exemplary embodiment, the first terminal 600 may be implemented by one or more Application Specific Integrated Circuits (ASICs), DSPs, Programmable Logic Devices (PLDs), Complex Programmable Logic Devices (CPLDs), Field Programmable Gate Arrays (FPGAs), general purpose processors, controllers, Micro Controllers (MCUs), microprocessors (microprocessors), or other electronic components for performing the aforementioned methods.

Based on the hardware implementation of the program module, and in order to implement the method at the first base station side in the embodiment of the present application, an embodiment of the present application further provides a first base station, as shown in fig. 7, where the first base station 700 includes:

a second communication interface 701 capable of performing information interaction with other network nodes;

the second processor 702 is connected to the second communication interface 701 to implement information interaction with other network nodes, and is configured to execute the method provided by one or more technical solutions of the first base station side when running a computer program. And the computer program is stored on the second memory 703.

Specifically, the second communication interface 701 is configured to send a first DCI to a first terminal; wherein the content of the first and second substances,

an index of TCI states included in the TCI state group;

a group identification indicating a TCI status;

indicating that the TCI status is either DL TCI status or UL TCI status.

It should be noted that: the specific processing procedures of the second processor 702 and the second communication interface 701 may be understood with reference to the above-described methods.

Of course, in practice, the various components in the first base station 700 are coupled together by a bus system 704. It is understood that the bus system 704 is used to enable connected communication between these components. The bus system 704 includes a power bus, a control bus, and a status signal bus in addition to a data bus. For clarity of illustration, however, the various buses are labeled in fig. 7 as the bus system 704.

The second memory 703 in the embodiment of the present application is used to store various types of data to support the operation of the first base station 700. Examples of such data include: any computer program for operating on the first base station 700.

The method disclosed in the embodiments of the present application can be applied to the second processor 702, or implemented by the second processor 702. The second processor 702 may be an integrated circuit chip having signal processing capabilities. In implementation, the steps of the above method may be implemented by integrated logic circuits of hardware or instructions in the form of software in the second processor 702. The second processor 702 described above may be a general purpose processor, a DSP, or other programmable logic device, discrete gate or transistor logic device, discrete hardware components, or the like. The second processor 702 may implement or perform the methods, steps and logic blocks disclosed in the embodiments of the present application. A general purpose processor may be a microprocessor or any conventional processor or the like. The steps of the method disclosed in the embodiments of the present application may be directly implemented by a hardware decoding processor, or implemented by a combination of hardware and software modules in the decoding processor. The software module may be located in a storage medium located in the second memory 703, and the second processor 702 reads the information in the second memory 703, and completes the steps of the foregoing method in combination with its hardware.

In an exemplary embodiment, the first base station 700 may be implemented by one or more ASICs, DSPs, PLDs, CPLDs, FPGAs, general-purpose processors, controllers, MCUs, microprocessors, or other electronic components for performing the aforementioned methods.

It is understood that the memories (the first memory 603 and the second memory 703) of the embodiments of the present application may be volatile memories or nonvolatile memories, and may also include both volatile and nonvolatile memories. Among them, the nonvolatile Memory may be a Read Only Memory (ROM), a Programmable Read Only Memory (PROM), an Erasable Programmable Read-Only Memory (EPROM), an Electrically Erasable Programmable Read-Only Memory (EEPROM), a magnetic random access Memory (FRAM), a Flash Memory (Flash Memory), a magnetic surface Memory, an optical disk, or a Compact Disc Read-Only Memory (CD-ROM); the magnetic surface storage may be disk storage or tape storage. Volatile Memory can be Random Access Memory (RAM), which acts as external cache Memory. By way of illustration, and not limitation, many forms of RAM are available, such as Static Random Access Memory (SRAM), Synchronous Static Random Access Memory (SSRAM), Dynamic Random Access Memory (DRAM), Synchronous Dynamic Random Access Memory (SDRAM), Double Data Rate Synchronous Dynamic Random Access Memory (DDRSDRAM), Double Data Rate Synchronous Random Access Memory (ESDRAM), Enhanced Synchronous Dynamic Random Access Memory (ESDRAM), Enhanced Synchronous Random Access Memory (DRAM), Synchronous Random Access Memory (DRAM), Direct Random Access Memory (DRmb Access Memory). The memories described in the embodiments of the present application are intended to comprise, without being limited to, these and any other suitable types of memory.

In an exemplary embodiment, the present application further provides a storage medium, specifically a computer storage medium, which is a computer readable storage medium, for example, the storage medium includes a first memory 603 storing a computer program, and the computer program can be executed by the first processor 602 of the first terminal 600 to complete the steps of the first terminal-side method. For example, the second memory 703 may store a computer program, which may be executed by the second processor 702 of the first base station 700 to perform the steps of the first base station-side method. The computer readable storage medium may be Memory such as FRAM, ROM, PROM, EPROM, EEPROM, Flash Memory, magnetic surface Memory, optical disk, or CD-ROM.

It should be noted that: "first," "second," and the like are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order.

The technical means described in the embodiments of the present application may be arbitrarily combined without conflict.

The above description is only a preferred embodiment of the present application, and is not intended to limit the scope of the present application.

Claims

1. An indication method of a transmission configuration indication, applied to a first terminal, includes:

receiving first Downlink Control Information (DCI); wherein, the first and the second end of the pipe are connected with each other,

the first DCI is to indicate a first TCI status group of at least one transmission configuration indication TCI status group; at least one TCI state group is activated by a first medium access control layer control element MAC-CE signaling based on a TCI state of a radio resource control RRC configuration; each TCI status group is used to indicate at least one TCI status.

2. The method of claim 1, wherein each TCI status group is configured to indicate 1 or 2 or 3 or 4 TCI statuses.

3. The method of claim 1, wherein each TCI state group for which first MAC-CE signaling is active includes at least one of:

an index of TCI states included in the TCI state group;

a group identification indicating a TCI status;

the TCI status is indicated as either a downlink DL TCI status or an uplink UL TCI status.

4. The method according to claim 3, wherein the group identity characterizes a group identity of a control resource set, CORESET, and/or a physical uplink control channel, PUCCH.

5. The method of claim 1, further comprising:

6. The method of claim 5, wherein determining that an update of CORESET and/or PUCCH is required based on information included in the first TCI state group comprises:

7. The method of claim 6,

under the condition that the first TCI state group comprises a DLTCI state, updating the TCI state of CORESET identified by the first group into a corresponding DLTCI state;

8. An indication method of a transmission configuration indication, applied to a first base station, includes:

9. The method of claim 8, wherein each TCI state group is configured to indicate 1 or 2 or 3 or 4 TCI states.

10. The method of claim 8, wherein each TCI state group for the first MAC-CE signaling activation includes at least one of:

an index of TCI states included in the TCI state group;

a group identification indicating a TCI status;

indicating that the TCI status is either DL TCI status or UL TCI status.

11. The method according to claim 10, wherein the group identity characterizes a group identity of CORESET and/or PUCCH.

12. An apparatus for transmitting a configuration indication, comprising:

a receiving unit configured to receive a first DCI; wherein, the first and the second end of the pipe are connected with each other,

13. An apparatus for transmitting a configuration indication, comprising:

14. A first terminal, comprising: a first processor and a first communication interface; wherein the content of the first and second substances,

15. A first base station, comprising: a second processor and a second communication interface; wherein the content of the first and second substances,

16. A first terminal, comprising: a first processor and a first memory for storing a computer program capable of running on the processor,

wherein the first processor is adapted to perform the steps of the method of any one of claims 1 to 5 when running the computer program.

17. A first base station, comprising: a second processor and a second memory for storing a computer program capable of running on the processor,

wherein the second processor is adapted to perform the steps of the method of any one of claims 6 to 8 when running the computer program.

18. A storage medium having stored thereon a computer program for performing the steps of the method of any one of claims 1 to 7 or the steps of the method of any one of claims 8 to 11 when executed by a processor.