CN114745799A

CN114745799A - TCI state activation method and device

Info

Publication number: CN114745799A
Application number: CN202210659523.1A
Authority: CN
Inventors: 王晓云; 左君; 王飞; 李岩
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: 2022-06-13
Filing date: 2022-06-13
Publication date: 2022-07-12
Anticipated expiration: 2042-06-13
Also published as: WO2023241500A1; CN114745799B

Abstract

The embodiment of the application provides a method and a device for activating a TCI state, relates to the technical field of communication, and solves the problem of how to improve the flexibility of TCI state indication or activation, and the method comprises the following steps: receiving DCI or MAC-CE, wherein the DCI or MAC-CE is used for indicating information of one or more TCI states, and/or the DCI or MAC-CE is used for activating one or more TCI states; wherein the information of the TCI status comprises at least one of: the number of TCI states in the Nth TCI code point, wherein N is a positive integer; whether the TCI state is the first TCI state in the Nth TCI code point or not; an index of a set or set of resources or a set of channels associated with the TCI state; the number of TCI states or the number of TCI state combinations or the number of TCI state types can improve the flexibility of TCI state indication or activation.

Description

TCI state activation method and device

Technical Field

The embodiment of the application relates to the technical field of communication, in particular to a method and a device for activating a Transmission Configuration Indicator (TCI) state.

Background

The related art of New Radio (NR) designs a way to indicate beams of different channels and/or reference signals through a TCI state. Taking a Physical Downlink Shared Channel (PDSCH) as an example, a signaling structure of Radio Resource Control (RRC) + Medium Access Control (MAC) -Control Element (Control Element, CE) + Downlink Control Information (DCI) is adopted to indicate a TCI state, that is, an RRC configures an available TCI state set, and the MAC-CE activates some TCI states from the available TCI state set, and indicates a TCI state from the activated TCI state for spatial reception parameters of a PDSCH Demodulation Reference Signal (DMRS) through signaling.

In the related art, beam indication signaling of a Physical Downlink Control Channel (PDCCH), a PDSCH, a Physical Uplink Shared Channel (PUSCH), and a Physical Uplink Control Channel (PUCCH) is designed separately, and different signaling is required to indicate beams or spatial parameters of the PDCCH, the PDSCH, the PUSCH, and the PUCCH, but in some cases, the beam directions of some channels are even the same, and in order to save signaling overhead and reduce indication delay, a Unified TCI architecture (Unified TCI) is considered, however, after introducing the Unified TCI, how to improve flexibility of TCI state indication or activation is an urgent problem to be solved.

Disclosure of Invention

Embodiments of the present application provide a method and an apparatus for activating a TCI status, so as to solve a problem of how to improve flexibility of TCI status indication or activation.

In a first aspect, a TCI status activation method is provided, which is applied to a terminal, and includes:

receiving DCI or MAC CE, wherein the DCI or MAC CE is used for indicating information of one or more TCI states, and/or the DCI or MAC CE is used for activating one or more TCI states;

wherein the information of the TCI status comprises at least one of:

the number of TCI states in the Nth TCI code point, wherein N is a positive integer;

whether the TCI state is the first TCI state in the Nth TCI code point or not;

an index of a set or set of resources or a set of channels associated with the TCI state;

the number of TCI states or the number of TCI state combinations or the number of TCI state types.

Optionally, when the DCI or MAC-CE activates the TCI state, the different TCI state types are arranged according to a preset order.

Optionally, the indexes of the groups or resource sets or channel sets associated with different ones of the multiple TCI states are the same, or the indexes of the groups or resource sets or channel sets associated with different ones of the multiple TCI states are different.

Optionally, the information of the TCI status includes: the number of TCI states in the Nth TCI code point, or whether the TCI state is the first TCI state in the Nth TCI code point,

the DCI or MAC-CE includes: a first indication bit to indicate one of:

the TCI state is a first TCI state in the Nth TCI codepoint;

the TCI state is not the first TCI state in the Nth TCI codepoint.

Optionally, in a case that the first indication bit is a first value, the first indication bit is used to indicate that the TCI status is a first TCI status of the nth TCI code point;

or, when the first indication bit is a second value, the first indication bit is used to indicate that the TCI status is not the first TCI status in the nth TCI code point.

Optionally, the number of TCI states includes one of:

a TCI state;

two TCI states;

three TCI states;

four TCI states.

Optionally, the information of the TCI status includes: an index of a set or set of resources or a set of channels associated with the TCI state,

the DCI or MAC-CE includes: a second indication bit of the first set of bits,

in the case that the second indication bit is a third value, the second indication bit is used to indicate an index of the TCI state associated with a first group or a first set of resources or a first set of channels;

or, when the second indication bit is a fourth value, the second indication bit is used to indicate an index of the TCI status association second group or second set of resources or second set of channels.

Optionally, the one TCI state includes one of:

a joint TCI state or DL TCI state for the first set or first set of resources or first set of channels;

a joint TCI state or DL TCI state for a second set or second set of resources or second set of channels;

UL TCI status of the first set or first set of resources or first set of channels;

UL TCI status of the second set or second set of resources or second set of channels;

alternatively, the first and second liquid crystal display panels may be,

the two TCI states include one of:

a DL TCI status and a UL TCI status of the first set or first set of resources or first set of channels;

a DL TCI status and a UL TCI status of the second set or second set of resources or second set of channels;

joint TCI status or DL TCI status of first group or first set of resources or first set of channels, UL TCI status of second group or second set of resources or second set of channels;

a joint TCI status or DL TCI status of a second set or second set of resources or second set of channels, UL TCI status of a first set or first set of resources or first set of channels;

a joint TCI status or DL TCI status of the first group or set of first resources or set of first channels, a joint TCI status or DL TCI status of the second group or set of second resources or set of second channels;

UL TCI status of the first set or first set of resources or first set of channels, UL TCI status of the second set or second set of resources or second set of channels;

alternatively, the first and second liquid crystal display panels may be,

the three TCI states include one of:

a DL TCI status and a UL TCI status of the first group or the first set of resources or the first set of channels, and a DL TCI status of the second group or the second set of resources or the second set of channels;

a DL TCI status and a UL TCI status of the second set or second set of resources or second set of channels, and a DL TCI status of the first set or first set of resources or first set of channels;

a DL TCI status and an UL TCI status of the first group or the first set of resources or the first set of channels, and an UL TCI status of the second group or the second set of resources or the second set of channels;

a DL TCI status and a UL TCI status of the second set or second set of resources or second set of channels, and a UL TCI status of the first set or first set of resources or first set of channels;

alternatively, the first and second electrodes may be,

the four TCI states include:

a DL TCI status and a UL TCI status of the first group or first set of resources or first set of channels, and a DL TCI status and a UL TCI status of the second group or second set of resources or second set of channels.

In a second aspect, a TCI status activation method is provided, which is applied to a network device, and includes:

transmitting DCI or MAC-CE, the DCI or MAC-CE being used for indicating information of one or more TCI states, and/or the DCI or MAC-CE being used for activating one or more TCI states;

wherein the information of the TCI status comprises at least one of:

whether the TCI state is the first TCI state in the Nth TCI code point or not;

Optionally, the information of the TCI status includes: the number of TCI states in the Nth TCI codepoint, or whether the TCI state is the first TCI state in the Nth TCI codepoint,

the DCI or MAC-CE includes: a first indication bit to indicate one of:

the TCI state is a first TCI state in the Nth TCI codepoint;

the TCI state is not the first TCI state in the Nth TCI codepoint.

Optionally, the number of TCI states includes one of:

a TCI state;

two TCI states;

three TCI states;

four TCI states.

the DCI or MAC-CE comprises: a second indication bit of the first set of bits,

Optionally, the one TCI state includes one of:

alternatively, the first and second liquid crystal display panels may be,

the two TCI states include one of:

a joint TCI state or DL TCI state for the first group or set of first resources or set of first channels, a joint TCI state or DL TCI state for the second group or set of second resources or set of second channels;

alternatively, the first and second electrodes may be,

the three TCI states include one of:

DL TCI status and UL TCI status of the first group or first set of resources or first set of channels, and UL TCI status of the second group or second set of resources or second set of channels;

alternatively, the first and second electrodes may be,

the four TCI states include:

In a third aspect, a TCI status activation apparatus is provided, which is applied to a terminal, and includes:

a receiving module, configured to receive DCI or MAC-CE, where the DCI or MAC-CE is used to indicate information of one or more TCI states and/or the DCI or MAC-CE is used to activate information of one or more TCI states;

wherein the information of the TCI status comprises at least one of:

whether the TCI state is the first TCI state in the Nth TCI code point or not;

In a fourth aspect, a TCI status activation apparatus is provided, which is applied to a network device, and includes:

a transmitting module, configured to transmit DCI or MAC-CE, where the DCI or MAC-CE is used to indicate information of one or more TCI states and/or the DCI or MAC-CE is used to activate information of one or more TCI states;

wherein the information of the TCI status comprises at least one of:

whether the TCI state is a first TCI state in the Nth TCI code point;

In a fifth aspect, there is provided a communication device comprising a processor, a memory and a program or instructions stored on the memory and executable on the processor, the program or instructions, when executed by the processor, implementing the steps of the method according to the first or second aspect.

A sixth aspect provides a readable storage medium on which a program or instructions are stored, which when executed by a processor, implement the steps of the method according to the first or second aspect.

In an embodiment of the present application, a terminal receives DCI or MAC-CE, where the DCI or MAC-CE is used to indicate information of one or more TCI states, and/or the DCI or MAC-CE is used to activate one or more TCI states; wherein the information of the TCI status comprises at least one of: the number of TCI states in the Nth TCI code point, wherein N is a positive integer; whether the TCI state is a first TCI state in the Nth TCI code point; an index of a set or set of resources or a set of channels associated with the TCI state; the number of TCI states or the number of TCI state combinations or the number of TCI state types may improve the flexibility of TCI state indication or activation.

Drawings

Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the application. Also, like reference numerals are used to refer to like parts throughout the drawings. In the drawings:

FIG. 1 is a schematic diagram of a multi-TRP scenario;

fig. 2 is a flowchart of a TCI status activation method according to an embodiment of the present application;

FIG. 3 is a flowchart of another TCI status activation method provided by the embodiments of the present application;

FIG. 4 is a schematic diagram of a TCI state provided by embodiments of the present application;

FIG. 5 is a schematic diagram of two TCI states provided by an embodiment of the present application;

FIG. 6 is a schematic diagram of three TCI states provided by an embodiment of the present application;

FIG. 7 is a schematic diagram of four TCI states provided by an embodiment of the present application;

fig. 8 is a schematic diagram of example 2 and example 2' provided by an embodiment of the present application;

fig. 9 is a schematic diagram of example 3 and example 3' provided by embodiments of the present application;

fig. 10 is a schematic diagram of example 4 and example 4' provided by embodiments of the present application;

FIG. 11 is a schematic illustration of example 7 provided by an embodiment of the present application;

FIG. 12 is a schematic diagram of example 7' provided by an embodiment of the present application;

FIG. 13 is a schematic diagram of example 8 provided by an embodiment of the present application;

FIG. 14 is a schematic illustration of example 8' provided by an embodiment of the present application;

FIG. 15 is a schematic diagram of a TCI status activation device according to an embodiment of the present application;

FIG. 16 is a schematic diagram of another TCI status activation device provided by an embodiment of the present application;

fig. 17 is a schematic diagram of a communication device provided in an embodiment of the present application.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some, but not all, embodiments of the present application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

The terms "comprises," "comprising," or any other variation thereof, in the description and claims of this application, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus. Furthermore, the use of "and/or" in the specification and claims means that at least one of the connected objects, such as a and/or B, means that three cases, a alone, B alone, and both a and B, exist.

In the embodiments of the present application, words such as "exemplary" or "for example" are used to mean serving as an example, instance, or illustration. Any embodiment or design described herein as "exemplary" or "e.g.," is not necessarily to be construed as preferred or advantageous over other embodiments or designs. Rather, use of the word "exemplary" or "such as" is intended to present relevant concepts in a concrete fashion.

To facilitate understanding of the embodiments of the present application, the following technical points are introduced:

one, related to Unified TCI architecture

In the Unified TCI architecture, a beam of a downlink channel and/or an uplink channel can be updated through a DCI or MAC-CE signaling, and the Unified TCI architecture is specifically divided into the following two modes:

(1) joint (Joint) TCI: the wave beam directions of the uplink and downlink channels are the same, and the wave beam of the uplink and downlink channels is updated by one signaling at the same time

(2) Independent (isolate) 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, PUCCH, PUSCH beams.

Whether the join TCI or the separate TCI mode is adopted is configured by RRC. The UnifieldTCI also adopts a signaling structure of RRC + MAC-CE + DCI, when the RRC is configured with a plurality of joint TCIs or separate Downlink (DL)/Uplink (UL) TCI states, and the MAC-CE signaling activates only one TCI state, the activated TCI state is the selected TCI; when the MAC-CE signaling activates a plurality of TCI states, a TCI is selected from the activated TCI states through DCI format (format) 1_1 or DCI format1_ 2. The maximum number of RRC configurable joint TCIs/DL TCIs discussed so far is 128 and the maximum number of RRC configurable UL TCIs is 64.

Second, with respect to multiple (Multi) -Transmission and Reception Point (TRP) scenes

In the Multi-TRP scenario shown in fig. 1, the beam indication of the Multi-TRP scenario is more complex than that of the single TRP, and the following situations may be specifically mentioned:

a) the 1 indication/activation information contains 1 TCI state, including the following examples:

example 1: join TCI/DL TCI of TRP1 (whether configured by RRC for join TCI mode);

example 1' join/DL TCI of TRP 2;

example 2 UL TCI of TRP 1;

example 2' UL TCI of TRP 2.

b) The 1 indication/activation information contains 2 TCI states, including the following examples:

example 3 DL TCI + UL TCI of TRP 1;

example 3' DL TCI + UL TCI of TRP 2;

example 4: joint/DL TCI of TRP1, UL TCI of TRP 2;

example 4' join/DL TCI of TRP2, UL TCI of TRP 1;

example 5: joint/DL TCI of TRP1, joint/DL TCI of TRP 2;

example 6 UL TCI of TRP1, UL TCI of TRP 2.

c) The 1 indication/activation information contains 3 TCI states, including the following examples:

example 7: DL TCI + UL TCI of TRP1, DL TCI of TRP 2;

example 7' DL TCI + UL TCI of TRP2, DL TCI of TRP 1;

example 8: DL TCI + UL TCI of TRP1, UL TCI of TRP 2;

example 8' DL TCI + UL TCI of TRP2, UL TCI of TRP 1.

d) The 1 indication/activation information contains 4 TCI states, including the following examples:

example 9 DL TCI + UL TCI for TRP1, DL TCI + UL TCI for TRP 2;

according to the above analysis, after extending the Unified TCI to multi-TRP scenarios, the following two problems should be solved:

1) how to indicate the TCI status information of different combinations of different examples, so that the terminal can know which example the received indication/activation information corresponds to;

2) how to activate the TCI state after the terminal receives the indication/activation information.

Referring to fig. 2, an embodiment of the present application provides a TCI state activation method, which is applied to a terminal, and includes the specific steps of: step 201.

Step 201: receiving DCI or MAC-CE, wherein the DCI or MAC-CE is used for indicating information of one or more TCI states, and/or the DCI or MAC-CE is used for activating one or more TCI states;

further, after step 201, the method may further include: activating the one or more TCI states according to the DCI or MAC-CE;

wherein the information of the TCI status comprises at least one of:

(1) the number of TCI states in the Nth TCI codepoint (codepoint), N being a positive integer;

for example, the DCI or the MAC-CE is used to indicate that there is one TCI state, two TCI states, three TCI states, or four TCI states in the nth TCI code point (i.e., a certain TCI code point), so that the flexibility of TCI state indication is improved.

(2) Whether the TCI state is the first TCI state in the Nth TCI code point or not;

for example, the DCI or the MAC-CE is used to indicate that the TCI status is the first TCI status in the nth TCI code point (i.e., a certain TCI code point), or indicate that the TCI status is not the first TCI status in the nth TCI code point (i.e., a certain TCI code point), and in this way, the number of TCI statuses in the nth TCI code point (i.e., a certain TCI code point) may also be determined.

For example, 1 to 4 TCI states may exist in a TCI code point, 2 bits are needed if the number of TCI states is directly indicated to be 1 to 4, and only 1bit is needed by indicating whether the TCI state is the first TCI state in a certain TCI code point, so that when the number of TCI states in a certain TCI code point is indicated, overhead can be effectively reduced.

(3) An index (index) of a set or set of resources or set of channels associated with the TCI state;

it is to be understood that a group or a set of resources or a set of channels may also be described as a TRP, i.e. the index of the TCI state associated group or set of resources or set of channels is equivalent to the index of the TCI state associated TRP, e.g. DCI or MAC-CE may be used to indicate whether the TCI state is TRP1 associated TCI state or TRP2 associated TCI state.

In the prior art, a Unified TCI is only applicable to single-TRP scenarios, and when an Unified TCI is used for multi-TRP, an index of a group or a resource set or a channel set associated with the TCI state of the UE needs to be indicated, that is, a channel or a reference signal resource of which TRP the TCI state of the UE corresponds to is indicated.

It is to be understood that the first set or first set of resources or first set of channels corresponds to TRP1 and the second set or second set of resources or second set of channels corresponds to TRP 2. If the number of TRPs is more than two, the third set or third set of resources or third set of channels is equivalent to TRP3, the fourth set or fourth set of resources or fourth set of channels is equivalent to TRP4, and so on.

(4) The number of TCI states or TCI state combinations or TCI state types.

For example, TCI status types may include: joint TCI state, UL TCI state, and DL TCI state.

Indicating the number of TCI states or the number of combinations of TCI states or the number of types of TCI states corresponds to indicating the index of the group or set of resources or set of channels associated with a TCI state by means of an implicit indication. When the TCI state only contains DL or join TCI, as in example 1, the index explicitly indicating the group or resource set or channel set associated with the TCI state occupies other bits except 1 byte, so by indicating the number of TCI states and combining the preset permutation orders of different TCI state types (such as the permutation orders of examples 1 to 9 introduced in relation to Multi-TRP), the index indicating the group or resource set or channel set associated with the TCI state by means of implicit indication can be realized, and the indication overhead is saved.

In an embodiment of the present application, when the DCI or the MAC-CE activates the TCI state, the different TCI state types are arranged according to a preset order.

Optionally, the arranging of the different TCI status types according to the preset order includes: the different TCI status types may be arranged in order according to example 1, example 1 ', example 2 ', …, example 7 ', example 8, example 9 introduced in the Multi-TRP described above.

Example 1: a joint TCI state or DL TCI state for the first set or first set of resources or first set of channels.

Example 1': a joint TCI state or DL TCI state for a second set or second set of resources or second set of channels.

Example 2: UL TCI status of the first set or first set of resources or first set of channels.

Example 2': UL TCI status of the second set or second set of resources or second set of channels.

Example 3: a DL TCI status and a UL TCI status of the first set or first set of resources or first set of channels;

example 3': a DL TCI status and a UL TCI status of the second set or second set of resources or second set of channels.

Example 4: joint TCI status or DL TCI status of first group or first set of resources or first set of channels, UL TCI status of second group or second set of resources or second set of channels;

example 4': a joint TCI status or DL TCI status of a second set or second set of resources or second set of channels, UL TCI status of a first set or first set of resources or first set of channels;

example 5: a joint TCI status or DL TCI status of the first group or set of first resources or set of first channels, a joint TCI status or DL TCI status of the second group or set of second resources or set of second channels;

example 6: UL TCI status of the first set or first set of resources or first set of channels, UL TCI status of the second set or second set of resources or second set of channels;

example 7: a DL TCI status and a UL TCI status of the first group or the first set of resources or the first set of channels, and a DL TCI status of the second group or the second set of resources or the second set of channels;

example 7': a DL TCI status and a UL TCI status of the second set or second set of resources or second set of channels, and a DL TCI status of the first set or first set of resources or first set of channels;

example 8: DL TCI status and UL TCI status of the first group or first set of resources or first set of channels, and UL TCI status of the second group or second set of resources or second set of channels;

example 8': a DL TCI status and a UL TCI status of the second set or second set of resources or second set of channels, and a UL TCI status of the first set or first set of resources or first set of channels;

example 9: a DL TCI status and a UL TCI status of the first group or first set of resources or first set of channels, and a DL TCI status and a UL TCI status of the second group or second set of resources or second set of channels.

The above illustrates the order of the examples 1-9, and the order of the different TCI state types in each example.

In one embodiment of the present application, the indexes of the groups or resource sets or channel sets associated with different TCI states in the plurality of TCI states are the same, or the indexes of the groups or resource sets or channel sets associated with different TCI states in the plurality of TCI states are different.

In one embodiment of the present application, the information of the TCI status includes: the number of TCI states in the Nth TCI codepoint or whether the TCI state is the first TCI state in the Nth TCI codepoint,

the DCI or MAC-CE includes: a first indication bit to indicate one of:

the TCI state is a first TCI state in the Nth TCI codepoint;

the TCI state is not the first TCI state in the Nth TCI codepoint.

In an embodiment of the present application, in a case that the first indication bit is a first value, the first indication bit is used to indicate that the TCI status is a first TCI status of the nth TCI code point;

For example, the first indication bit is 1bit (bit), when the first indication bit is "1", it indicates that the TCI state is the first TCI state of the nth TCI code point, and when the first indication bit is "0", it indicates that the TCI state is not the first TCI state of the nth TCI code point, so that the terminal may determine, according to the first indication bit in the received MAC CE or DCI, the number of TCI states in the nth TCI code point corresponding to the MAC CE or DCI.

For example, when one first indication bit in the MAC CE or the DCI is "1", it indicates that the number of TCI states in the nth TCI code point corresponding to the MAC CE or the DCI is one TCI state, as shown in fig. 4.

When the two first indication bits in the MAC CE or the DCI are "1" and "0", respectively, it indicates that the number of TCI states in the nth TCI code point corresponding to the MAC CE or the DCI is two TCI states, as shown in fig. 5.

When the three first indication bits in the MAC CE or the DCI are "1", "0", and "0", respectively, it indicates that the number of TCI states in the nth TCI code point corresponding to the MAC CE or the DCI is three TCI states, as shown in fig. 6.

If the four first indication bits in the MAC CE or the DCI are "1", "0", respectively, it indicates that the number of TCI states in the nth TCI code point corresponding to the MAC CE or the DCI is four TCI states, as shown in fig. 7.

Thus, the number of TCI states in the Nth TCI code point corresponding to the MAC CE or the DCI can be determined according to the value of the first indication bit of 1bit in the MAC CE or the DCI.

In one embodiment of the present application, the number of TCI states includes one of:

(1) a TCI state;

(2) two TCI states;

(3) three TCI states;

(4) four TCI states.

In one embodiment of the present application, the information of the TCI status includes: an index of a group or a set of resources or a set of channels associated with the TCI state, the DCI or MAC-CE comprising: a second indication bit;

For example, the second indication bit is 1bit, the third value is "1", and the fourth value is "0".

It is understood that the aforementioned mentioning that the maximum number of joint TCIs or DL TCIs is 128, i.e. 7 bits are occupied, and the aforementioned mentioning uses 1bit for indicating whether the TCI state is the first TCI state in the nth TCI codepoint, in which case the 8 bits constitute one byte of the MAC-CE. The maximum number of UL TCIs is 64, and 1bit is used to indicate whether the TCI status is the first TCI status in the nth TCI codepoint, and 1bit remains in 1 octet.

The following index of the group or resource set or channel set associated with the TCI state is: the index of the group or resource set or channel set associated with the UL TCI status is an example.

UL TCI status is included in example 2, example 2 ', example 3 ', example 4 ', example 7 ', example 8, and example 8 ', and 1bit may be used to represent an index of a group or resource set or channel set associated with the UL TCI status, see fig. 8, 9, 10, 11, 12, 13, 14.

For example 3, example 4, example 7, example 8, and example 3 ', example 4', example 7 ', example 8', the number of TCI states involved is greater than 1, and for the index of the set of resources or channel set associated with other TCI states, the order of the TCI states in each example may be specified.

Taking example 3 and example 3' as examples, the index of the group or resource set or channel set for representing the DL TCI + UL TCI of TRP1 and the DL TCI + UL TCI of TRP2, i.e. the two TCI states of activation/indication, respectively, is the same.

Taking example 7 and example 7' as examples, the TCI status of the activation/indication is: DL TCI + UL TCI of TRP1, DL TCI of TRP2 or DL TCI + UL TCI of TRP2, DL TCI of TRP 1.

If the order of the TCI states is specified, then the second TCI state in example 7 and example 7' is a UL TCI, the first and third TCI states are DL TCIs, and the index of the group or resource set or channel set associated with the first TCI state and the second TCI state are the same, and the index of the group or resource set or channel set associated with the third TCI state and the second TCI state are different. The index of the 1 st and 3 rd TCI state groups or resource sets or channel sets can be derived from the index of the second TCI state associated group or resource set or channel set.

In one embodiment of the present application, the one TCI state includes one of:

(1) a joint TCI state or DL TCI state for the first set or first set of resources or first set of channels.

I.e., the joint TCI state or DL TCI state of the first TRP.

(2) A joint TCI state or DL TCI state for a second set or second set of resources or second set of channels.

I.e., the joint TCI state or DL TCI state of the second TRP.

(3) UL TCI status of the first set or first set of resources or first set of channels.

I.e., the UL TCI status of the first TRP.

(4) UL TCI status of the second set or second set of resources or second set of channels.

I.e., the UL TCI status of the second TRP.

Wherein the two TCI states comprise one of:

(1) a DL TCI status and a UL TCI status of the first set or first set of resources or first set of channels;

namely, a DL TCI status and a UL TCI status of the first TRP.

(2) A DL TCI status and a UL TCI status of the second set or second set of resources or second set of channels.

Namely, a DL TCI status and a UL TCI status of the first TRP.

(3) A joint TCI status or DL TCI status of the first set or first set of resources or first set of channels, UL TCI status of the second set or second set of resources or second set of channels;

i.e., the joint TCI state or DL TCI state of the first TRP, the UL TCI state of the second TRP.

(4) A joint TCI status or DL TCI status of a second set or second set of resources or second set of channels, UL TCI status of a first set or first set of resources or first set of channels;

i.e., the joint TCI state or DL TCI state of the second TRP, the UL TCI state of the first TRP.

(5) A joint TCI state or DL TCI state for the first group or set of first resources or set of first channels, a joint TCI state or DL TCI state for the second group or set of second resources or set of second channels;

namely, the joint TCI state or DL TCI state of the first TRP, and the joint TCI state or DL TCI state of the second TRP.

(6) UL TCI status of the first set or first set of resources or first set of channels, UL TCI status of the second set or second set of resources or second set of channels;

namely, the UL TCI status of the first TRP, and the UL TCI status of the second TRP.

Wherein the three TCI states include one of:

(1) a DL TCI status and a UL TCI status of the first group or the first set of resources or the first set of channels, and a DL TCI status of the second group or the second set of resources or the second set of channels;

namely, a DL TCI state and a UL TCI state of the first TRP, and a DL TCI state of the second TRP.

(2) A DL TCI status and a UL TCI status of the second set or second set of resources or second set of channels, and a DL TCI status of the first set or first set of resources or first set of channels;

namely, the DL TCI state and the UL TCI state of the second TRP, and the DL TCI state of the first TRP.

(3) DL TCI status and UL TCI status of the first group or first set of resources or first set of channels, and UL TCI status of the second group or second set of resources or second set of channels;

namely, a DL TCI state and a UL TCI state of the first TRP, and a UL TCI state of the second TRP.

(4) A DL TCI status and a UL TCI status of the second set or second set of resources or second set of channels, and a UL TCI status of the first set or first set of resources or first set of channels;

namely, the DL TCI state and the UL TCI state of the second TRP, and the UL TCI state of the first TRP.

Wherein the four TCI states include:

Namely, a DL TCI state and a UL TCI state of the first TRP, and a second DL TCI state and a UL TCI state.

In addition to TCI status combinations containing UL TCI status, the index of the group or set of resources or set of channels associated with each TCI status may also be indicated in other examples. To address this issue, when the MAC-CE or DCI may be specified to indicate or activate a TCI state, different TCI state types may be arranged in order according to example 1, example 1 ', example 2 ', …, example 7 ', example 8, and indicate the following information:

(1) n1, representing the number of TCI states or the number of TCI state types in example 1;

(2) n2, representing the number of TCI states or the number of TCI state types in example 1';

(3) n3, representing the number of TCI state combinations or the number of TCI state types in example 3+ example 3';

(4) n4, representing the number of TCI state combinations or the number of TCI state types in example 4+ example 4';

(5) n5, representing the number of TCI state combinations or the number of TCI state types in example 5;

(6) n6, representing the number of TCI state combinations or the number of TCI state types in example 7+ example 7';

(7) n7, representing the number of TCI state combinations or the number of TCI state types in example 8+ example 8'.

In the embodiment of the application, the problem of beam indication of unified TCI in a MULTI-TRP scene can be solved, and the flexibility of beam indication in the MULTI-TRP scene is improved.

Referring to fig. 3, an embodiment of the present application provides a TCI status activation method, applied to a network device, including: step 301.

Step 301: transmitting DCI or MAC-CE, the DCI or MAC-CE being used for indicating information of one or more TCI states, and/or the DCI or MAC-CE being used for activating one or more TCI states;

wherein the information of the TCI status comprises at least one of:

(1) the number of TCI states in the Nth TCI code point, wherein N is a positive integer;

(2) whether the TCI state is a first TCI state in a TCI code point;

(3) an index of a group or set of resources or set of channels associated with the TCI state;

(4) the number of TCI states or the number of TCI state combinations or the number of TCI state types.

the DCI or MAC-CE includes: a first indication bit to indicate one of:

(1) the TCI state is a first TCI state in the Nth TCI codepoint;

(2) the TCI state is not the first TCI state in the Nth TCI codepoint.

(1) a TCI state;

(2) two TCI states;

(3) three TCI states;

(4) four TCI states.

In one embodiment of the present application, the information of the TCI status includes: an index of a set or set of resources or a set of channels associated with the TCI state,

the DCI or MAC-CE includes: a second indication bit of the first set of bits,

(1) a joint TCI state or DL TCI state for the first set or first set of resources or first set of channels;

(2) a joint TCI state or DL TCI state for a second set or second set of resources or second set of channels;

(3) UL TCI status of the first set or first set of resources or first set of channels;

(4) UL TCI status of the second set or second set of resources or second set of channels;

alternatively, the first and second electrodes may be,

the two TCI states, including one of:

(2) a DL TCI status and a UL TCI status of the second set or second set of resources or second set of channels;

(3) joint TCI status or DL TCI status of first group or first set of resources or first set of channels, UL TCI status of second group or second set of resources or second set of channels;

(4) a joint TCI status or DL TCI status of the second set or second set of resources or second set of channels, UL TCI status of the first set or first set of resources or first set of channels;

alternatively, the first and second electrodes may be,

the three TCI states include one of:

alternatively, the first and second electrodes may be,

the four TCI states include:

In an embodiment of the present application, a DCI or MAC-CE is transmitted, where the DCI or MAC-CE is used to indicate information of one or more TCI states and/or the DCI or MAC-CE is used to activate one or more TCI states; wherein the information of the TCI status comprises at least one of: the number of TCI states in the Nth TCI code point, wherein N is a positive integer; whether the TCI state is the first TCI state in the Nth TCI code point or not; an index of a group or set of resources or set of channels associated with the TCI state; the number of TCI states or the number of TCI state combinations or the number of TCI state types can improve the flexibility of TCI state indication or activation.

Referring to fig. 15, an embodiment of the present application provides a TCI status activation apparatus, which is applied to a terminal, where the apparatus 1500 includes:

a receiving module 1501 is configured to receive DCI or MAC-CE, where the DCI or MAC-CE is used to indicate information of one or more TCI statuses, and/or the DCI or MAC-CE is used to activate one or more TCI statuses.

Further, the apparatus 1500 may further include: an activation module to activate the one or more TCI states according to the DCI or MAC-CE;

wherein the information of the TCI status comprises at least one of:

whether the TCI state is the first TCI state in the Nth TCI code point or not;

the DCI or MAC-CE includes: a first indication bit to indicate one of:

the TCI state is a first TCI state in the Nth TCI codepoint;

the TCI state is not the first TCI state in the Nth TCI codepoint.

a TCI state;

two TCI states;

three TCI states;

four TCI states.

the DCI or MAC-CE includes: a second indication bit of the first set of bits,

alternatively, the first and second electrodes may be,

the two TCI states include one of:

alternatively, the first and second electrodes may be,

the three TCI states include one of:

alternatively, the first and second electrodes may be,

the four TCI states include:

The device provided in the embodiment of the present application can implement each process implemented by the method embodiment shown in fig. 2, and achieve the same technical effect, and for avoiding repetition, details are not described here again.

Referring to fig. 16, an embodiment of the present application provides a TCI status activation apparatus, which is applied to a network device, where the apparatus 1600 includes:

a transmitting module 1601 configured to transmit DCI or MAC-CE, where the DCI or MAC-CE is used to indicate information of one or more TCI statuses, and/or the DCI or MAC-CE is used to activate one or more TCI statuses;

wherein the information of the TCI status comprises at least one of:

whether the TCI state is the first TCI state in the Nth TCI code point or not;

the DCI or MAC-CE includes: a first indication bit to indicate one of:

the TCI state is a first TCI state in the Nth TCI codepoint;

the TCI state is not the first TCI state in the Nth TCI codepoint.

a TCI state;

two TCI states;

three TCI states;

four TCI states.

the DCI or MAC-CE includes: a second indication bit of the first set of bits,

in case that the second indication bit is a third value, the second indication bit is used for indicating an index of the TCI status association first group or first set of resources or first set of channels;

alternatively, the first and second electrodes may be,

the two TCI states include one of:

alternatively, the first and second liquid crystal display panels may be,

the three TCI states include one of:

alternatively, the first and second liquid crystal display panels may be,

the four TCI states, including:

The device provided in the embodiment of the present application can implement each process implemented by the method embodiment shown in fig. 3, and achieve the same technical effect, and for avoiding repetition, details are not described here again.

As shown in fig. 17, the embodiment of the present application further provides a communication device 1700, which includes a processor 1701, a memory 1702, and a program or instructions stored in the memory 1702 and executable on the processor 1701, wherein when the program or instructions are executed by the processor 1701, the program or instructions implement the processes of the method embodiment shown in fig. 2 or fig. 3, and achieve the same technical effect. To avoid repetition, further description is omitted here.

An embodiment of the present application further provides a readable storage medium, where a program or an instruction is stored on the readable storage medium, and when the program or the instruction is executed by a processor, the program or the instruction implements each process of the method embodiment shown in fig. 2 or fig. 3, and can achieve the same technical effect, and in order to avoid repetition, details are not repeated here.

Wherein, the processor is the processor in the terminal described in the above embodiment. The readable storage medium includes a computer readable storage medium, such as a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and so on.

The steps of a method or algorithm described in connection with the disclosure herein may be embodied in hardware or may be embodied in software instructions executed by a processor. The software instructions may consist of corresponding software modules that may be stored in RAM, flash memory, ROM, EPROM, EEPROM, registers, hard disk, a removable hard disk, a compact disk, or any other form of storage medium known in the art. An exemplary storage medium is coupled to the processor such the processor can read information from, and write information to, the storage medium. Of course, the storage medium may also be integral to the processor. The processor and the storage medium may reside in an ASIC. In addition, the ASIC may be carried in a core network interface device. Of course, the processor and the storage medium may reside as discrete components in a core network interface device.

Those skilled in the art will recognize that in one or more of the examples described above, the functions described herein may be implemented in hardware, software, firmware, or any combination thereof. When implemented in software, the functions may be stored on or transmitted over as one or more instructions or code on a computer-readable medium. Computer-readable media includes both computer storage media and communication media including any medium that facilitates transfer of a computer program from one place to another. A storage media may be any available media that can be accessed by a general purpose or special purpose computer.

The above-mentioned embodiments, objects, technical solutions and advantages of the present application are further described in detail, it should be understood that the above-mentioned embodiments are only examples of the present application, and are not intended to limit the scope of the present application, and any modifications, equivalent substitutions, improvements and the like made on the basis of the technical solutions of the present application should be included in the scope of the present application.

As will be appreciated by one skilled in the art, embodiments of the present application may be provided as a method, system, or computer program product. Accordingly, embodiments of the present application may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, embodiments of the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.

Embodiments of the present application are described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the application. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.

These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

It will be apparent to those skilled in the art that various changes and modifications can be made in the embodiments of the present application without departing from the spirit and scope of the application. Thus, if such modifications and variations of the embodiments of the present application fall within the scope of the claims of the present application and their equivalents, the present application is also intended to encompass such modifications and variations.

Claims

1. A TCI state activation method is applied to a terminal and is characterized by comprising the following steps:

receiving downlink control information DCI or a media access control unit MAC CE, wherein the DCI or the MAC CE is used for indicating one or more transmission configuration indication TCI state information, and/or the DCI or the MAC CE is used for activating one or more TCI states;

wherein the information of the TCI status comprises at least one of:

whether the TCI state is a first TCI state in the Nth TCI code point;

2. The method of claim 1, wherein when the DCI or MAC-CE activates the TCI state, the different TCI state types are arranged in a predetermined order.

3. The method of claim 1, wherein the index of the groups or resource sets or channel sets associated with different ones of the plurality of TCI states are the same or the index of the groups or resource sets or channel sets associated with different ones of the plurality of TCI states are different.

4. The method of claim 1, wherein the information of the TCI status comprises: the number of TCI states in the Nth TCI code point, or whether the TCI state is the first TCI state in the Nth TCI code point,

the DCI or MAC-CE includes: a first indication bit to indicate one of:

the TCI state is a first TCI state in the Nth TCI codepoint;

the TCI state is not the first TCI state in the Nth TCI codepoint.

5. The method as claimed in claim 4, wherein the first indication bit is used to indicate that the TCI status is the first TCI status of the Nth TCI code point, if the first indication bit is the first value;

6. The method of claim 1, wherein the number of TCI states comprises one of:

a TCI state;

two TCI states;

three TCI states;

four TCI states.

7. The method of claim 1, wherein the information of the TCI status comprises: an index of a set or set of resources or a set of channels associated with the TCI state,

the DCI or MAC-CE includes: a second indication bit of the first set of bits,

8. The method of claim 6, wherein the one TCI state comprises one of:

a joint TCI status or DL TCI status of a second group or second set of resources or second set of channels;

alternatively, the first and second electrodes may be,

the two TCI states, including one of:

alternatively, the first and second electrodes may be,

the three TCI states include one of:

alternatively, the first and second electrodes may be,

the four TCI states include:

9. A TCI state activation method is applied to network equipment and is characterized by comprising the following steps:

wherein the information of the TCI status comprises at least one of:

whether the TCI state is the first TCI state in the Nth TCI code point or not;

10. The method of claim 9, wherein when the DCI or MAC-CE activates the TCI state, the different TCI state types are arranged in a predetermined order.

11. The method of claim 9, wherein the index of the groups or resource sets or channel sets associated with different ones of the plurality of TCI states are the same or the index of the groups or resource sets or channel sets associated with different ones of the plurality of TCI states are different.

12. The method of claim 9, wherein the information of the TCI status comprises: the number of TCI states in the Nth TCI code point, or whether the TCI state is the first TCI state in the Nth TCI code point,

the DCI or MAC-CE includes: a first indication bit to indicate one of:

the TCI state is a first TCI state in the Nth TCI codepoint;

the TCI state is not a first TCI state in the Nth TCI codepoint.

13. The method as claimed in claim 12, wherein the first indication bit is used to indicate that the TCI status is the first TCI status of the nth TCI code point, if the first indication bit is the first value;

14. The method of claim 9, wherein the number of TCI states comprises one of:

a TCI state;

two TCI states;

three TCI states;

four TCI states.

15. The method of claim 9, wherein the information of the TCI status comprises: an index of a set or set of resources or a set of channels associated with the TCI state,

the DCI or MAC-CE includes: a second indication bit of the first set of bits,

16. The method of claim 14, wherein the one TCI state comprises one of:

a joint TCI status or DL TCI status of the first set or first set of resources or first set of channels;

alternatively, the first and second electrodes may be,

the two TCI states include one of:

a DL TCI status and a UL TCI status of the second group or the second set of resources or the second set of channels;

a joint TCI status or DL TCI status of the second set or second set of resources or second set of channels, UL TCI status of the first set or first set of resources or first set of channels;

alternatively, the first and second electrodes may be,

the three TCI states include one of:

alternatively, the first and second electrodes may be,

the four TCI states include:

17. A TCI status activation device applied to a terminal, comprising:

a receiving module, configured to receive DCI or MAC-CE, where the DCI or MAC-CE is used to indicate information of one or more TCI states, and/or the DCI or MAC-CE is used to activate one or more TCI states;

wherein the information of the TCI status comprises at least one of:

whether the TCI state is a first TCI state in the Nth TCI code point;

18. A TCI status activation apparatus applied to a network device, comprising:

a transmitting module, configured to transmit DCI or MAC-CE, where the DCI or MAC-CE is used to indicate information of one or more TCI states, and/or the DCI or MAC-CE is used to activate information of one or more TCI states;

wherein the information of the TCI status comprises at least one of:

whether the TCI state is the first TCI state in the Nth TCI code point or not;