TCI state indication method and device and storage medium

Abstract

Provided in the present application are a TCI state indication method and apparatus, and a storage medium, the method comprising: receiving a signaling sent by a wireless access network device, the signaling being used for indicating multiple groups of TCI states, the group number of the multiple groups of TCI states being a first number, one group of TCI states comprising at least one TCI state, the first number being used for determining an effective moment of the TCI state, and the first number being used for determining an effective moment of the TCI state; the terminal and the wireless access network equipment communicate according to the TCI state at the effective moment of the TCI state, so that multiple groups of TCI states sent by the wireless access network equipment at multiple effective moments are received at one time, and the overhead of network resources can be reduced.

Description

Technical Field

[0001] The present application relates to the field of communications, and in particular to a TCI status indication method, device and storage medium. Background Art

[0002] In the NR (New Radio) system, in order to combat the path loss in high-frequency scenarios, the transmitter and receiver obtain matching beam pairs through beam management (BM) to improve beamforming gain. In the existing downlink beam management process, the wireless access network equipment selects a suitable Txbeam (transmit beam) for subsequent communication based on the beam measurement information reported by the UE (terminal), and indicates the selected beam information (spatial reception parameters) to the UE through the Transmission Configuration Indicator (TCI).

[0003] The main defect of the existing technology is that when the wireless access network equipment indicates the beam information to the UE, it only indicates the beam at one moment each time. When the spatial reception parameter information changes, it needs to be re-indicated, which leads to a problem of high network resource overhead. Summary of the invention

[0004] The present application provides a TCI status indication method, device and storage medium, which are used to provide a TCI status indication method that can reduce network resource overhead.

[0005] In a first aspect, the present application provides a TCI status indication method, which is applied to a terminal. The TCI status indication method includes: receiving signaling sent by a wireless access network device, the signaling is used to indicate multiple groups of TCI states, the number of groups of the multiple groups of TCI states is a first number, a group of TCI states includes at least one TCI state, the first number is used to determine the effective time of the TCI state, and the terminal and the wireless access network device communicate according to the TCI state at the effective time of the TCI state.

[0006] Optionally, the signaling indicates one first TCI code point, and the first TCI code point maps multiple groups of TCI states.

[0007] Optionally, the signaling indicates multiple second TCI code points, the effective time of at least one TCI state mapped to each second TCI code point is the same, and different second TCI code points correspond to different effective times.

[0008] Optionally, the signaling is carried in first downlink control information, and the first downlink control information is downlink control information used for downlink scheduling.

[0009] Optionally, the first downlink control information includes a first TCI field, and the first TCI field indicates multiple second TCI code points.

[0010] Optionally, the first downlink control information includes multiple first TCI fields, and each first TCI field indicates a second TCI code point.

[0011] Optionally, the signaling is carried in second downlink control information, and the second downlink control information is downlink control information not used for downlink scheduling.

[0012] Optionally, some fields in the second downlink control information indicate multiple second TCI code points.

[0013] Optionally, a partial field in the second downlink control information indicates the number of second TCI code points.

[0014] Optionally, the signaling is carried in third downlink control information, the third downlink control information is downlink control information encrypted by a preset wireless network temporary identifier, and the third downlink control information includes: a first field and a second TCI field, the first field indicates a first number of third TCI code points.

[0015] Optionally, the number of second TCI fields is 1, and the second TCI field indicates the first number of third TCI code points.

[0016] Optionally, the number of second TCI domains is a second number, the second number is greater than the first number, the second number is configured on the network side or predetermined by the network side and the terminal, the first number of second TCI domains is determined from the second number of second TCI domains, and each second TCI domain indicates a third TCI code point.

[0017] Optionally, after receiving the signaling sent by the wireless access network device, it also includes: determining the effective time of one group of TCI states; and determining the effective time of other groups of TCI states based on the effective time and offset duration value of one group of TCI states, and the offset duration value is configured on the network side or predetermined by the network side and the terminal.

[0018] Optionally, before receiving the signaling sent by the wireless access network device, the method further includes:

[0019] Receive an activation instruction sent by a wireless access network device, the activation instruction carries at least one second field, wherein the i-th second field is used to represent the number of effective moments of the TCI state mapped by the i-th TCI code point or the number of groups of TCI states, and i is a positive integer.

[0020] Optionally, the activation instruction further carries at least one third field, wherein the i-th third field is used to indicate the number of TCI states mapped by the i-th group of TCI states.

[0021] In a second aspect, the present application provides a TCI status indication method, which is applied to a wireless access network device. The TCI status indication method includes: generating signaling; sending signaling to a terminal, the signaling is used to indicate multiple groups of TCI states, the number of groups of the multiple groups of TCI states is a first number, a group of TCI states includes at least one TCI state, the first number is used to determine the effective time of the TCI state, and the terminal and the wireless access network device communicate according to the TCI state at the effective time of the TCI state.

[0022] Optionally, the signaling indicates one first TCI code point, and the first TCI code point maps multiple groups of TCI states.

[0023] Optionally, the signaling indicates multiple second TCI code points, the effective time of at least one TCI state mapped to each second TCI code point is the same, and different second TCI code points correspond to different effective times.

[0024] Optionally, the signaling is carried in first downlink control information, and the first downlink control information is downlink control information used for downlink scheduling.

[0025] Optionally, the first downlink control information includes a first TCI field, and the first TCI field indicates multiple second TCI code points.

[0026] Optionally, the first downlink control information includes multiple first TCI fields, and each second TCI field indicates a second TCI code point.

[0027] Optionally, the signaling is carried in second downlink control information, and the second downlink control information is downlink control information not used for downlink scheduling.

[0028] Optionally, some fields in the second downlink control information indicate multiple second TCI code points.

[0029] Optionally, a partial field in the second downlink control information indicates the number of second TCI code points.

[0030] Optionally, the signaling is carried in third downlink control information, and the third downlink control information is downlink control information scrambled by a preset radio network temporary identifier. The third downlink control information includes: a first field and a second TCI field, and the first field indicates a first number of third TCI code points.

[0031] Optionally, the number of second TCI fields is 1, and the second TCI field indicates the first number of third TCI code points.

[0032] Optionally, the number of second TCI domains is a second number, the second number is greater than the first number, the second number is configured on the network side or predetermined by the network side and the terminal, the first number of second TCI domains is determined from the second number of second TCI domains, and each second TCI domain indicates a third TCI code point.

[0033] Optionally, the signaling sent to the terminal also includes:

[0034] The activation instruction sent to the terminal carries at least one second field, wherein the i-th second field is used to indicate the number of effective moments of the TCI state mapped to the i-th TCI code point or the number of groups of TCI states, and i is a positive integer.

[0035] Optionally, the activation instruction further carries at least one third field, wherein the i-th third field is used to indicate the number of TCI states mapped by the i-th group of TCI states.

[0036] In a third aspect, the present application provides a TCI status indication device, which is applied to a terminal. The TCI status indication device includes:

[0037] A receiving unit is used to receive signaling sent by a wireless access network device, where the signaling is used to indicate multiple groups of TCI states, where the number of groups of TCI states is a first number, where a group of TCI states includes at least one TCI state, and where the first number is used to determine a time when the TCI state takes effect. The terminal and the wireless access network device communicate according to the TCI state at the time when the TCI state takes effect.

[0038] In a fourth aspect, the present application provides a TCI status indication device, which is applied to a wireless access network device, and the TCI status indication device includes:

[0039] A generating unit, used for generating a signal;

[0040] A sending unit is used to send signaling to a terminal, where the signaling is used to indicate multiple groups of TCI states, where the number of groups of TCI states is a first number, where a group of TCI states includes at least one TCI state, and where the first number is used to determine a time when the TCI state takes effect. The terminal communicates with the wireless access network device according to the TCI state at the time when the TCI state takes effect.

[0041] In a fifth aspect, the present application provides a terminal, including a memory, a transceiver, and a processor:

[0042] Memory for storing computer programs;

[0043] a transceiver for transmitting and receiving data under the control of the processor;

[0044] A processor is used to read the computer program in the memory and perform the following operations:

[0045] Receive signaling sent by a wireless access network device, where the signaling is used to indicate multiple groups of TCI states, where the number of groups of TCI states is a first quantity, where a group of TCI states includes at least one TCI state, and where the first quantity is used to determine a time when the TCI state takes effect. The terminal and the wireless access network device communicate according to the TCI state at the time when the TCI state takes effect.

[0046] In a sixth aspect, the present application provides a wireless access network device, including a memory, a transceiver, and a processor:

[0047] Memory for storing computer programs;

[0048] a transceiver for transmitting and receiving data under the control of the processor;

[0049] A processor is used to read the computer program in the memory and perform the following operations:

[0050] Send signaling to the terminal, the signaling is used to indicate multiple groups of TCI states, the number of groups of TCI states is a first number, a group of TCI states includes at least one TCI state, the first number is used to determine the effective time of the TCI state, and the terminal and the wireless access network device communicate according to the TCI state at the effective time of the TCI state.

[0051] In a seventh aspect, the present application provides a processor-readable storage medium, the processor-readable storage medium storing a computer program, and the computer program is used to enable the processor to execute the TCI status indication method of any one of the first aspect and the second aspect.

[0052] In an eighth aspect, the present application provides a computer program product comprising instructions, which, when executed on a computer, causes the computer to execute the first aspect as described above.

[0053] According to the TCI status indication method, device and storage medium provided in the present application, the present application receives signaling sent by a wireless access network device, the signaling is used to indicate multiple groups of TCI status, the number of groups of the multiple groups of TCI status is a first number, a group of TCI status includes at least one TCI state, the first number is used to determine the effective time of the TCI state, the terminal and the wireless access network device communicate according to the TCI state at the effective time of the TCI state, and realizes the reception of multiple groups of TCI status at multiple effective times sent by the wireless access network device at one time, thereby reducing the overhead of network resources.

[0054] It should be understood that the contents described in the above summary of the invention are not intended to limit the key or important features of the embodiments of the present application, nor are they intended to limit the scope of the present application. Other features of the present application will become easy to understand through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0055] In order to more clearly illustrate the technical solutions in the present application or the prior art, a brief introduction will be given below to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0056] Figure 1 A schematic diagram of AI-based time domain beam prediction provided in an embodiment of the present application;

[0057] Figure 2 A schematic diagram of a TCI status indication method provided in an embodiment of the present application;

[0058] Figure 3 A schematic diagram of another TCI status indication method provided in an embodiment of the present application;

[0059] Figure 4 A schematic diagram of a unified TCI state activation instruction provided in an embodiment of the present application;

[0060] Figure 5 A schematic diagram of another unified TCI state activation instruction provided in an embodiment of the present application;

[0061] Figure 6 A schematic diagram of another two TCI status indication methods provided in the embodiments of the present application;

[0062] Figure 7 A flow chart of a first TCI status indication device provided in an embodiment of the present application;

[0063] Figure 8 A flow chart of a second TCI status indication device provided in an embodiment of the present application;

[0064] Fig. 9 A schematic diagram of a terminal provided in an embodiment of the present application;

[0065] Fig.10 A schematic diagram of a wireless access network device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0066] In the present application, "at least one" means one or more, and "plurality" means two or more. "And / or" describes the association relationship of associated objects, indicating that three relationships may exist. For example, A and / or B can mean: A exists alone, A and B exist at the same time, and B exists alone, where A and B can be singular or plural. The character " / " generally indicates that the previous and next associated objects are in an "or" relationship. "At least one of the following" or similar expressions refers to any combination of these items, including any combination of single or plural items. For example, at least one of a, b, or c can mean: a, b, c, ab, ac, bc, or abc, where a, b, c can be single or multiple.

[0067] It is understandable that the various steps or operations in the embodiments of the present application are merely examples, and the embodiments of the present application may also perform other operations or variations of various operations. In addition, the various steps may be performed in different orders presented in the embodiments of the present application, and it is possible that not all operations in the embodiments of the present application need to be performed.

[0068] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0069] The technical solution provided in the embodiment of the present application can be applicable to a variety of systems, for example, the applicable system can be a global system of mobile communication (GSM) system, a code division multiple access (CDMA) system, a wideband code division multiple access (WCDMA) general packet radio service (GPRS) system, a long term evolution (LTE) system, a LTE frequency division duplex (FDD) system, a LTE time division duplex (TDD) system, an advanced long term evolution (LTE-A) system, a universal mobile telecommunication system (UMTS), a world-wide interoperability for microwave access (WiMAX) system, a 6G new radio (NR) system, etc. These various systems include terminals and network equipment. The system may also include a core network part, such as an evolved packet system (EPS), a 6G system (5GS), etc.

[0070] In order to understand this solution more clearly, the problems existing in the prior art of this solution are briefly described as follows:

[0071] Refer to Table 1 for the English abbreviations and their corresponding English full names and Chinese meanings in this article:

[0072] Table 1

[0073]

[0074]

[0075]

[0076] In the related art, one TCI code point can be used to indicate the TCI state of the uplink channel or the TCI state of the downlink channel or the TCI state of the uplink and downlink channels. The DCI carrying the TCI field can be a DCI that schedules the PDSCH, or a PDSCH that is only used to indicate the TCI state without PDSCH scheduling. The standard stipulates that the TCI state indicated by the TCI field takes effect at least X symbols after the ACK of the PDSCH scheduled by the DCI or the ACK of the DCI, where X depends on the UE capability.

[0077] Among them, some methods can be used to measure the optimal beam at multiple moments in the future, such as Figure 1 The method based on AI (artificial intelligence) / ML (machine learning) is shown. In this method, based on the beam measurement results at T1, T2, T3, and T4, the optimal beam at the future T5, T6, T7, and T8 can be predicted.

[0078] In the related art, the TCI status indicated by the base station through one TCI indication signaling is at the same time, that is, the effective time of these TCI status is the same. If the optimal beam between the base station and the UE changes frequently, the transmission of DCI only for TCI status indication without PDSCH scheduling will also occur frequently, resulting in a large DCI overhead. Figure 1 In the example, if the optimal beams at the four moments T5, T6, T7, and T8 are different, four DCIs will be sent to indicate their TCIs according to the existing mechanism. In order to reduce the DCI overhead, the present invention proposes a method for indicating the TCI states at multiple moments at one time, thereby reducing the DCI overhead.

[0079] To solve the above problems, an embodiment of the present application provides a TCI status indication method, device and storage medium. The method receives signaling sent by a wireless access network device, and the signaling is used to indicate multiple groups of TCI status. The number of groups of multiple groups of TCI status is a first number. A group of TCI status includes at least one TCI state. The first number is used to determine the effective time of the TCI state. The terminal and the wireless access network device communicate according to the TCI state at the effective time of the TCI state.

[0080] For example, refer to Figure 1 The embodiment of the present application takes into account the flexibility of TCI status indication. When a base station indicates the TCI status at multiple times once, before the indicated TCI status takes effect, the base station may update its beam according to the network status. Figure 1In the example, the base station indicates the TCI state of four moments (T5, T6, T7, T8) according to the prediction results of the AI ​​model. The base station sends TCI indication signaling before T5, which indicates that the effective moments corresponding to multiple TCI states are T5, T6, T7, and T8. Assuming that after T5 and before T6, the base station decides to change the beams at moments T6, T7, and T8 according to the network conditions, the base station sends TCI indication signaling, which indicates that the effective moments corresponding to multiple TCI states are T6, T7, and T8, that is, the beams at these three moments are updated. So, in this example, the base station indicates TCI twice, the effective moment / moment corresponding to the TCI state indicated for the first time is four moments (T5, T6, T7, and T8), and the effective moment / moment corresponding to the TCI state indicated for the second time is three moments (T6, T7, and T8). Therefore, when designing a solution, it is necessary to consider a method in which the base station indicates the TCI status at multiple times at one time and the number of times the TCI status is indicated at one time is variable (non-fixed).

[0081] Among them, the method and the device are based on the same application concept. Since the method and the device solve the problem in a similar principle, the implementation of the device and the method can refer to each other, and the repeated parts will not be repeated.

[0082] The first TCI status indication method provided in an embodiment of the present application is applied to a terminal, and the TCI status indication method includes: receiving signaling sent by a wireless access network device, the signaling is used to indicate multiple groups of TCI statuses, the number of groups of the multiple groups of TCI statuses is a first number, a group of TCI statuses includes at least one TCI state, the first number is used to determine the effective time of the TCI state, and the terminal and the wireless access network device communicate according to the TCI state at the effective time of the TCI state.

[0083] Among them, the UE receives signaling sent by the base station, which indicates multiple groups of TCI states, and the number of groups of TCI states is a first number (n), where n is an integer from 1 to N, and N is an integer configured or predefined by the network side. The first number is also the effective time of the multiple groups of TCI states. For example, when predicting the beam based on the AI ​​algorithm, if the output of the AI ​​model is the optimal beam at 4 moments, the base station side can configure N=4, then n takes a value between 1 and 4.

[0084] Reference Figure 2, if n is 4, the signaling indicates 4 groups of TCI states, namely Group A, Group B, Group C and Group D. Among them, the TCI state of Group A includes TCI state #1 and TCI state #2. The TCI state of Group B includes TCI state #3. The TCI state of Group C includes TCI state #4. The TCI state of Group D includes TCI state #5 and TCI state #6. Among them, the effective time corresponding to the TCI state of Group A is the effective time a1, that is, the effective time of TCI state #1 and TCI state #2 is a1. The effective time corresponding to the TCI state of Group B is the effective time a2, that is, the effective time of TCI state #3 is a2. The effective time corresponding to the TCI state of Group C is the effective time a3, that is, the effective time of TCI state #4 is a3. The effective time corresponding to the TCI state of Group D is the effective time a4, that is, the effective time of TCI state #5 and TCI state #6 is a4.

[0085] In an optional embodiment, referring to Figure 3 , the signaling indicates 1 first TCI code point, and the first TCI code point maps multiple groups of TCI states.

[0086] Among them, the signaling received by the UE indicates a first TCI code point (such as Figure 3 The first TCI code point in the code), the effective time of multiple groups of TCI states mapped by one first TCI code point is n moments.

[0087] Furthermore, before receiving the signaling sent by the wireless access network device, it also includes: receiving an activation instruction sent by the wireless access network device, the activation instruction carries at least one second domain, wherein the i-th second domain is used to represent the number of effective moments of the TCI state mapped by the i-th TCI code point or the number of groups of TCI states, and i is a positive integer.

[0088] Specifically, the base station activates the TCI state and sends an activation instruction to the terminal. The activation instruction indicates the effective time number of the TCI state mapped to each TCI code point, and determines the effective time of each TCI state according to certain rules.

[0089] The activation instruction also carries at least one third field, wherein the i-th third field is used to indicate the number of TCI states mapped by the i-th group of TCI states.

[0090] Specifically, the number of effective moments corresponding to the multiple groups of TCI states mapped by each TCI code point is indicated in the activation instruction of the TCI state. For example, a second field is added to the activation instruction, for example, the second field is named "Ti field", and the second field is used to indicate the number of effective moments corresponding to the TCI state of the i-th TCI code point. Among them, the length of the second field is After receiving the signaling indicating the TCI state, the UE learns that the indication is the first TCI code point, and learns from the activation instruction the multiple groups of TCI states mapped to the first TCI code point and the number of effective time points corresponding to these groups of TCI states.

[0091] If the number of effective moments corresponding to the first TCI code point is greater than 1, it is considered that the first TCI code point includes multiple groups of TCI states, and the effective moment of each group of TCI states is the same. For example, if the number of effective moments corresponding to the TCI code point is n, then the first TCI code point maps n groups of TCI states. Each group of TCI states includes one or more TCI states, and the number of TCI states included in each group of TCI states is determined according to the third field in the activation instruction. The effective moment of each group of TCI states is determined according to the following principles:

[0092] The effective time of the first group of TCI states of each TCI code point can follow the definition of the existing unified TCI beam effective time, and the time offset value between the effective time of the remaining groups of TCI states and the effective time of the previous group can be predefined or indicated by the base station. If the offset value of the effective time is configured to be 500ms, the effective time of the nth group of TCI states is t0+500*(n-1)(ms), where t0 is the effective time of the first group of TCI states.

[0093] In the existing unified TCI indication method, RRC configures several TCI states, and MAC-CE signaling activates some TCI states to form TCI code points. The number of activated TCI code points is S, and the value of S is 1 to 8. When the number of activated TCI code points S is greater than 1, 1 is selected from the activated S code points through DCI signaling. Among them, the MAC-CE signaling used to activate / deactivate the TCI state is as follows: Figure 4 .

[0094] In the existing MAC-CE signaling, Serving cell ID, DL BWP ID and UL BWP ID are respectively used to indicate the serving cell index, downlink partial bandwidth and uplink partial bandwidth index of the activated TCI state application; the Pi field is used to indicate that the i-th TCI code point includes 1 or 2 TCI states; D / U indicates whether the TCI state ID in the same byte as D / U is a joint / downlink TCI state or an uplink TCI state; the TCI state ID is the TCI state index; and R is a reserved bit.

[0095] Furthermore, in the embodiment of the present application, a second field is added to the activation instruction of the TCI state, and the second field is used to indicate the number of effective moments included in the ith TCI code point. Assuming that the number of effective moments included in each TCI code point is at most 4, 2 bits are used to indicate the number of effective moments (first number) or the number of TCI state groups included in the ith TCI code point. Assuming that 8 TCI code points are activated, the activation instruction Figure 5 As shown:

[0096] When Ti=00, it means that the number of effective moments (TCI state group number) of the TCI state included in the i-th TCI code point is 1;

[0097] When Ti=01, it means that the number of effective moments (number of TCI state groups) of the TCI state included in the i-th TCI code point is 2;

[0098] When Ti=10, it means that the number of effective moments (number of TCI state groups) of the TCI state included in the i-th TCI code point is 3;

[0099] When Ti=11, it means that the number of effective moments of the TCI state included in the i-th TCI code point (the number of TCI state groups) is 4;

[0100] In the above, i=1,2,…,8.

[0101] Among them, the third field is used to indicate how many TCI states the i-th group of TCI states includes (such as 1 or 2), and each TCI code point may include multiple groups of TCI states. In this embodiment, there are 15 groups of TCI states for 8 TCI code points.

[0102] The UE receives the MAC-CE activation command and the DCI signaling carrying the TCI domain. The TCI domain of the DCI indicates the code point 001, which is the second TCI code point. Assume that T2 = 10, that is, the number of effective moments of the TCI state included in the second TCI code point is 3, that is, it includes 3 groups of TCI states, which are:

[0103] Group 1: TCI state #16 (downlink TCI state);

[0104] Group 2: TCI state #12 (uplink TCI);

[0105] Group 3: TCI state #9 (downlink TCI state), TCI state #20 (uplink TCI state).

[0106] Further, the UE reads the TCI state ID corresponding to the second TCI code point, and determines the number of TCI states included in each group of TCI states in the second TCI code point according to the third domain (Pi domain). The effective time of the first group of TCI states is the same as the existing mechanism, which is the X symbol after receiving ACK. If the offset value of the base station configuration effective time is 500ms, the effective time of the second group of TCI states is 500ms after the effective time of the first group of TCI states, and the effective time of the third group of TCI states is 500ms after the effective time of the second group of TCI states. The UE receives downlink channels / signals and sends uplink channels / signals according to the effective time of each group of TCI states.

[0107] In another optional embodiment, referring to Figure 6 , the signaling indicates multiple second TCI code points, the effective time of at least one TCI state mapped by each second TCI code point is the same, and the effective time corresponding to different second TCI code points is different.

[0108] In the embodiment of the present application, the indication signaling received by the UE includes multiple TCI code points, the effective time of the TCI state mapped by one TCI code point is the same, and the effective time of the TCI state mapped by different TCI code points is different. There is an offset value between the effective times of the TCI states of different code points.

[0109] Specifically, the signaling is carried in the first downlink control information, and the first downlink control information is downlink control information used for downlink scheduling, that is, the signaling can be carried in the DCI used to schedule PDSCH. The first downlink control information includes a first TCI domain, and the first TCI domain indicates multiple second TCI code points. The first downlink control information includes multiple first TCI domains, and each first TCI domain indicates a second TCI code point.

[0110] Optionally, the signaling is carried in the second downlink control information, and the second downlink control information is downlink control information not used for downlink scheduling, that is, carried in the DCI that does not schedule PDSCH. Part of the domain in the second downlink control information indicates multiple second TCI code points. Part of the domain in the second downlink control information indicates the number of second TCI code points.

[0111] In the embodiment of the present application, the partial field indicating the plurality of second TCI code points and the partial field indicating the number of second TCI code points are different fields.

[0112] Specifically, the signaling received by the UE includes n TCI code points, the effective time of the TCI state mapped by one TCI code point is the same, and the effective time of the TCI state mapped by different code points is different. The number of TCI code points and TCI code points indicated in the second downlink control information. When the number of second TCI code points indicated by the second downlink control information is 1, the first TCI field in the second downlink control information indicates the second TCI code point; when the number of second TCI code points indicated by the second downlink control information is greater than 1, the first TCI field in the second downlink control information indicates 1 second TCI code point, and the remaining second TCI code points are indicated by the reserved field in the second downlink control information.

[0113] Specifically, when the second downlink control information does not schedule PDSCH and is only used to indicate the TCI state, DCI (downlink control information) is designed according to the following rules:

[0114] 1) CS-RNTI scrambles the CRC (cyclic redundancy check) of the second downlink control information

[0115] 2) Determine whether the second downlink control information is only used to indicate the TCI state according to the value of the special field (such as the existing RV / MCS / NDI / FDRA field, which is part of the above fields);

[0116] 3) judging the number of TCI code points indicated by the current second downlink control information according to the value of the SRS request field (partial field);

[0117] 4) Read the corresponding partial fields according to Table 2 (values ​​and corresponding functions of partial fields in DCI) to obtain multiple TCI code points.

[0118] Table 2

[0119]

[0120] Table 2 only provides a method for splicing and reading bits according to multiple fields in DCI as TCI code points. Other reading methods are not excluded, such as reading multiple fields from high to low, etc., which are not limited here.

[0121] The effective time of the TCI state of the first TCI code point can follow the definition of the existing unified TCI beam effective time mentioned above, and the time offset value of the TCI state effective time of other TCI code points and the effective time of the previous TCI code point can be predefined or indicated by the base station.

[0122] In the embodiment of the present application, the base station configures several TCI states through RRC signaling, and then activates some TCI states through MAC-CE signaling to form TCI code points, which is the same as the existing protocol method.

[0123] The base station sends DCI (second downlink control information) that does not schedule PDSCH and is only used for TCI indication. After receiving the DCI, the UE determines the function of the current DCI and the number of TCI code points indicated based on the values ​​of some fields, and reads the corresponding TCI code points. Assuming that SUL is not configured, the values ​​of the following fields in the CS-RNTI scrambled DCI received by the UE are:

[0124] RV domain: set to all "1";

[0125] MCS domain: set to all "1";

[0126] NDI domain: set to "0";

[0127] FDRA domain: all "0" (FDRA type is Type 0);

[0128] SRS request field: "01".

[0129] As can be seen from Table 1, the UE knows that the DCI does not schedule PDSCH and is only used for TCI indication based on the values ​​of the RV, MCS, NDI and FDRA fields. According to the SRS request field = "01", it is known that the DCI indicates 2 TCI code points. The UE needs to read the TCI field (3 bits) and the HARQ process number field (4 bits). Assuming that each TCI code point is 3 bits, the TCI field and the HARQ process number field are concatenated to 7 bits. The UE reads 6 bits from low to high as the first TCI code point and the second TCI code point, and the remaining bits are reserved bits.

[0130] After the UE reads the first TCI code point and the second TCI code point, the effective time of the TCI state corresponding to the first TCI code point is the same as the existing mechanism, which is the X symbol after receiving ACK. If the offset value of the base station configuration effective time is 500ms, the effective time of the TCI state corresponding to the second TCI code point is 500ms after the effective time of the TCI state corresponding to the first TCI code point. The UE receives downlink channels / signals and sends uplink channels / signals according to the effective time of the TCI state corresponding to each TCI code point.

[0131] In another optional embodiment, the signaling is carried in the third downlink control information, the third downlink control information is the downlink control information encrypted by the preset wireless network temporary identifier, and the third downlink control information includes: a first field and a second TCI field, the first field indicates the first number of third TCI code points.

[0132] The number of the second TCI domain is 1, and the second TCI domain indicates the first number of third TCI code points.

[0133] Furthermore, the number of second TCI domains is a second number, the second number is greater than the first number, the second number is configured on the network side or predetermined by the network side and the terminal, the first number of second TCI domains is determined from the second number of second TCI domains, and each second TCI domain indicates a third TCI code point.

[0134] In an embodiment of the present application, a new RNTI type (preset radio network temporary identifier) ​​is introduced, and the DCI (third downlink control information) scrambled by this type of RNTI is specifically used to indicate the TCI code point. When the UE parses the DCI scrambled by this type of RNTI, it can be known that the DCI is used to indicate the third TCI code point. The DCI scrambled by this type of RNTI includes at least a first domain and a second TCI domain, wherein the first domain indicates the number of third TCI code points indicated by the third downlink control information. The number of second TCI domains is 1 or N. When the number of second TCI domains is 1, 1 second TCI domain can indicate N third TCI code points; when the number of second TCI domains is N, each second TCI domain indicates 1 third TCI code point, and a total of N third TCI code points can be indicated. The second TCI domain is read according to the value of the first domain. There is an offset value between the effective time of the TCI state of different code points.

[0135] Among them, after receiving the signaling sent by the wireless access network device, it also includes: determining the effective time of one group of TCI states; and determining the effective time of other groups of TCI states based on the effective time and offset duration value of one group of TCI states, and the offset duration value is configured on the network side or predetermined by the network side and the terminal.

[0136] Specifically, the signaling in the third downlink control information received by the UE includes a first field (used to indicate the number of TCI code points included in the DCI) and a second TCI field (used to indicate the TCI code point). The third downlink control information can be scrambled using a preset RNTI. When the preset RNTI is used for scrambling, it indicates that the third downlink control information is only used to indicate TCI.

[0137] Specifically, the number of the second TCI domains may be N (N is the second number), and the UE reads n (n is the first number) domains, where n is the number of TCI code points indicated by the first domain, and N is the maximum value of the number of TCI code points indicated by the first domain. When n is less than N, the redundant domains are reserved.

[0138] Alternatively, the number of the second TCI domain is 1, and the bit length of the second TCI domain is N*L, wherein bits of length n*L are used to indicate n TCI code points, n is the number of TCI code points indicated by the TCI_Num domain, L is the number of bits for each TCI code point, and N is the maximum value of the number of TCI code points indicated by the TCI_Num domain. When n is less than N, the extra bits are reserved.

[0139] The effective time of the TCI state of the first third TCI code point can follow the definition of the existing unified TCI beam effective time, and the time offset value of the TCI state effective time of other third TCI code points and the effective time of the previous third TCI code point can be predefined or indicated by the base station. In the embodiment of the present application, the base station configures several TCI states through RRC signaling, and then activates some TCI states through MAC-CE signaling to form TCI code points in the same way as the existing protocol method.

[0140] Assuming that the maximum value of the number of TCI code points indicated by the base station through the third downlink control information is configured as 4, the base station can indicate 1-4 TCI code points each time TCI is indicated. The value of the first field and the corresponding number of TCI code points indicated are shown in Table 3 below.

[0141] Table 3

[0142] The value of the first field The number of third TCI code points indicated 00 1 third TCI code point 01 2 third TCI code points 10 3 third TCI code points 11 4 third TCI code points

[0143] The length of the second TCI field is 12 bits, indicating a maximum of 4 third TCI code points, each of which occupies 3 bits. When the number of third TCI code points n indicated by the base station is less than 4, the n*3 bits of the second TCI field from low to high indicate the first third TCI code point, the second third TCI code point, ..., the nth third TCI code point.

[0144] The CRC check bit of the third downlink control information sent by the base station is scrambled with the TCI-RNTI (preset radio network temporary identifier) ​​of the UE. The TCI-RNTI of the UE is configured by the base station.

[0145] The UE receives the third downlink control information. If the instruction is parsed according to the TCI-RNTI, it is known that the third downlink control information is used to indicate the third TCI code point or TCI status. The UE reads the first field, and the value of the first field is "10", indicating that the base station indicates 3 third TCI code points. The UE reads 9 bits from low to high in the second TCI field. These 9 bits are grouped in groups of three, indicating the first third TCI code point, the second third TCI code point, and the third third TCI code point, respectively.

[0146] After the UE reads three third TCI code points, the effective time of the TCI state corresponding to the first third TCI code point is the same as the existing mechanism, which is the X symbol after receiving ACK. If the offset value of the base station configuration effective time is 500ms, then the effective time of the TCI state corresponding to the second third TCI code point is 500ms after the effective time of the TCI state corresponding to the first third TCI code point, and the effective time of the TCI state corresponding to the third third TCI code point is 500ms after the effective time of the TCI state corresponding to the second third TCI code point. The UE receives downlink channels / signals and sends uplink channels / signals according to the effective time of the TCI state corresponding to each third TCI code point.

[0147] The embodiment of the present application proposes a method for indicating the TCI status of multiple effective moments at one time and the number of moments of the indicated TCI status is non-fixed, which can reduce the signaling overhead caused by the frequent indication of the TCI status. The present application considers a variety of indication methods. The first is to indicate one TCI code point at one time, and the effective time of the TCI state mapped by one TCI code point is n moments. The second is to use part of the domain in DCI to indicate the number of TCI code points and TCI code points. The third is a method of adding a first domain to DCI and reading the TCI code point according to the newly added first domain. Among them, the indication of the first method is flexible and can be used when using MAC-CE or DCI to indicate TCI, without changing the DCI design. Compared with the first method, the second method can indicate more TCI states under the same indication overhead, and there is no need to add DCI bits. Although the third method occupies more DCI overhead, it is not limited to the DCI format and can indicate more TCI states.

[0148] Furthermore, the present application provides a TCI status indication method, which is applied to a wireless access network device. The TCI status indication method includes: generating signaling; sending signaling to a terminal, the signaling is used to indicate multiple groups of TCI states, the number of groups of the multiple groups of TCI states is a first number, a group of TCI states includes at least one TCI state, the first number is used to determine the effective time of the TCI state, and the terminal and the wireless access network device communicate according to the TCI state at the effective time of the TCI state.

[0149] The specific implementation process of this embodiment refers to the above embodiment and will not be repeated here.

[0150] In addition, the present application embodiment provides a TCI status indication device 70, referring to Figure 7 The TCI status indication device 70 is applied to a terminal and includes:

[0151] The receiving unit 71 is used to receive signaling sent by a wireless access network device, where the signaling is used to indicate multiple groups of TCI states, where the number of groups of TCI states is a first number, where a group of TCI states includes at least one TCI state, and where the first number is used to determine a time when the TCI state takes effect. The terminal and the wireless access network device communicate according to the TCI state at the time when the TCI state takes effect.

[0152] Optionally, the signaling indicates one first TCI code point, and the first TCI code point maps multiple groups of TCI states.

[0153] Optionally, the signaling indicates multiple second TCI code points, the effective time of at least one TCI state mapped to each second TCI code point is the same, and different second TCI code points correspond to different effective times.

[0154] Optionally, the signaling is carried in first downlink control information, and the first downlink control information is downlink control information used for downlink scheduling.

[0155] Optionally, the first downlink control information includes a first TCI field, and the first TCI field indicates multiple second TCI code points.

[0156] Optionally, the first downlink control information includes multiple first TCI fields, and each first TCI field indicates a second TCI code point.

[0157] Optionally, the signaling is carried in second downlink control information, and the second downlink control information is downlink control information not used for downlink scheduling.

[0158] Optionally, some fields in the second downlink control information indicate multiple second TCI code points.

[0159] Optionally, a partial field in the second downlink control information indicates the number of second TCI code points.

[0160] Optionally, the signaling is carried in third downlink control information, the third downlink control information is downlink control information encrypted by a preset wireless network temporary identifier, and the third downlink control information includes: a first field and a second TCI field, the first field indicates a first number of third TCI code points.

[0161] Optionally, the number of second TCI fields is 1, and the second TCI field indicates the first number of third TCI code points.

[0162] Optionally, the number of second TCI domains is a second number, the second number is greater than the first number, the second number is configured on the network side or predetermined by the network side and the terminal, the first number of second TCI domains is determined from the second number of second TCI domains, and each second TCI domain indicates a third TCI code point.

[0163] Optionally, it also includes a determination unit (not shown), which is used to determine the effective time of one group of TCI states after receiving the signaling sent by the wireless access network device; and determine the effective time of other groups of TCI states based on the effective time and offset duration value of one group of TCI states, and the offset duration value is configured on the network side or predetermined by the network side and the terminal.

[0164] Optionally, it also includes a receiving unit (not shown), which is used to receive an activation instruction sent by the wireless access network device before receiving the signaling sent by the wireless access network device, and the activation instruction carries at least one second field, wherein the i-th second field is used to represent the number of effective moments of the TCI state mapped by the i-th TCI code point or the number of groups of TCI states, and i is a positive integer.

[0165] Optionally, the activation instruction further carries at least one third field, wherein the i-th third field is used to indicate the number of TCI states mapped by the i-th group of TCI states.

[0166] Reference Figure 8 The present application provides a TCI status indication device 80, which is applied to a wireless access network device. The TCI status indication device 80 includes:

[0167] A generating unit 81, configured to generate signaling;

[0168] The sending unit 82 is used to send signaling to the terminal, where the signaling is used to indicate multiple groups of TCI states, where the number of groups of TCI states is a first number, where a group of TCI states includes at least one TCI state, and where the first number is used to determine the effective time of the TCI state. The terminal and the wireless access network device communicate according to the TCI state at the effective time of the TCI state.

[0169] Optionally, the signaling indicates one first TCI code point, and the first TCI code point maps multiple groups of TCI states.

[0170] Optionally, the signaling indicates multiple second TCI code points, the effective time of at least one TCI state mapped to each second TCI code point is the same, and different second TCI code points correspond to different effective times.

[0171] Optionally, the signaling is carried in first downlink control information, and the first downlink control information is downlink control information used for downlink scheduling.

[0172] Optionally, the first downlink control information includes a first TCI field, and the first TCI field indicates multiple second TCI code points.

[0173] Optionally, the first downlink control information includes multiple first TCI fields, and each second TCI field indicates a second TCI code point.

[0174] Optionally, the signaling is carried in second downlink control information, and the second downlink control information is downlink control information not used for downlink scheduling.

[0175] Optionally, some fields in the second downlink control information indicate multiple second TCI code points.

[0176] Optionally, a partial field in the second downlink control information indicates the number of second TCI code points.

[0177] Optionally, the signaling is carried in third downlink control information, and the third downlink control information is downlink control information scrambled by a preset radio network temporary identifier. The third downlink control information includes: a first field and a second TCI field, and the first field indicates a first number of third TCI code points.

[0178] Optionally, the number of second TCI fields is 1, and the second TCI field indicates the first number of third TCI code points.

[0179] Optionally, the number of second TCI domains is a second number, the second number is greater than the first number, the second number is configured on the network side or predetermined by the network side and the terminal, the first number of second TCI domains is determined from the second number of second TCI domains, and each second TCI domain indicates a third TCI code point.

[0180] Optionally, it also includes a sending unit: used to send an activation instruction to the terminal before the signaling is sent to the terminal, the activation instruction carries at least one second field, wherein the i-th second field is used to represent the number of effective moments of the TCI state mapped to the i-th TCI code point or the number of groups of TCI states, and i is a positive integer.

[0181] Optionally, the activation instruction further carries at least one third field, wherein the i-th third field is used to indicate the number of TCI states mapped by the i-th group of TCI states.

[0182] Reference Fig. 9 The present application provides a terminal, including a memory 91, a transceiver 92 and a processor 93:

[0183] A memory 91, used for storing computer programs;

[0184] a transceiver 92, for transmitting and receiving data under the control of the processor;

[0185] The processor 93 is used to read the computer program in the memory and perform the following operations:

[0186] Receive signaling sent by a wireless access network device, where the signaling is used to indicate multiple groups of TCI states, where the number of groups of TCI states is a first quantity, where a group of TCI states includes at least one TCI state, and where the first quantity is used to determine a time when the TCI state takes effect. The terminal and the wireless access network device communicate according to the TCI state at the time when the TCI state takes effect.

[0187] Among them, Fig. 9 In the embodiment, the bus architecture may include any number of interconnected buses and bridges, specifically one or more processors represented by processor 93 and various circuits of memory represented by memory 91 are linked together. The bus architecture may also link together various other circuits such as peripheral devices, voltage regulators, and power management circuits, which are well known in the art and are therefore not further described herein. The bus interface provides an interface. The transceiver 92 may be a plurality of components, namely, a transmitter and a receiver, providing a unit for communicating with various other devices on a transmission medium, which transmission medium includes wireless channels, wired channels, optical cables, and other transmission media. Optionally, the measurement processing device may also include a user interface 94. For different user devices, the user interface 94 may also be an interface capable of externally connecting or internally connecting required devices, and the connected devices include but are not limited to a keypad, a display, a speaker, a microphone, a joystick, and the like.

[0188] The processor 93 is responsible for managing the bus architecture and general processing, and the memory 91 can store data used by the processor 93 when performing operations.

[0189] Optionally, the processor 93 may be a central processing unit (CPU), an application specific integrated circuit (ASIC), a field programmable gate array (FPGA) or a complex programmable logic device (CPLD), and the processor 93 may also adopt a multi-core architecture.

[0190] The processor 93 is used to execute any terminal-related method provided in the embodiments of the present application according to the obtained executable instructions by calling the computer program stored in the memory 91. The processor and the memory can also be arranged physically separately.

[0191] Reference Fig.10 , the present application provides a wireless access network device, including a memory 101, a transceiver 102 and a processor 103:

[0192] Memory 101, used for storing computer programs;

[0193] The transceiver 102 is used to send and receive data under the control of the processor 103;

[0194] The processor 103 is configured to read the computer program in the memory 101 and perform the following operations:

[0195] Generate signaling; send signaling to the terminal, the signaling is used to indicate multiple groups of TCI states, the number of groups of TCI states is a first number, a group of TCI states includes at least one TCI state, the first number is used to determine the effective time of the TCI state, and the terminal and the wireless access network device communicate according to the TCI state at the effective time of the TCI state.

[0196] Among them, Fig.10 In the embodiment, the bus architecture may include any number of interconnected buses and bridges, specifically one or more processors represented by processor 103 and various circuits of memory represented by memory 101 are linked together. The bus architecture may also link together various other circuits such as peripherals, voltage regulators, and power management circuits, which are well known in the art and are therefore not further described herein. The bus interface provides an interface. The transceiver 102 may be a plurality of components, namely, a transmitter and a receiver, providing a unit for communicating with various other devices on a transmission medium, such as a wireless channel, a wired channel, an optical cable, and the like. The processor 103 is responsible for managing the bus architecture and general processing, and the memory 101 may store data used by the processor 103 when performing operations.

[0197] The processor 103 may be a CPU, an ASIC, an FPGA or a CPLD, and the processor may also adopt a multi-core architecture.

[0198] The processor 103 is used to execute any method related to the wireless access network device provided in the embodiment of the present application according to the obtained executable instructions by calling the computer program stored in the memory 101. The processor and the memory can also be arranged physically separately.

[0199] It should be noted here that the above-mentioned device provided in the present application can implement all the method steps implemented in the above-mentioned method embodiment, and can achieve the same technical effect. The parts and beneficial effects of this embodiment that are the same as the method embodiment will not be described in detail here.

[0200] It should be noted that the division of units in the embodiments of the present application is schematic and is only a logical function division. There may be other division methods in actual implementation. In addition, each functional unit in each embodiment of the present application may be integrated into a processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit. The above-mentioned integrated unit may be implemented in the form of hardware or in the form of software functional units.

[0201] If the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a processor-readable storage medium. Based on this understanding, the technical solution of the present application is essentially or the part that contributes to the prior art or all or part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including a number of instructions to enable a computer device (which can be a personal computer, server, or network device, etc.) or a processor (processor) to perform all or part of the steps of each embodiment method of the present application. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (Read-Only Memory, ROM), random access memory (Random Access Memory, RAM), disk or optical disk and other media that can store program code.

[0202] The embodiment of the present application provides a processor-readable storage medium, which stores a computer program, and the computer program is used to enable the processor to execute any method related to the terminal provided in the embodiment of the present application. The processor is enabled to implement all the method steps implemented by the terminal in the above method embodiment, and the same technical effect can be achieved. The parts and beneficial effects that are the same as those in the method embodiment will not be specifically described here.

[0203] The processor-readable storage medium can be any available medium or data storage device that can be accessed by the processor, including but not limited to magnetic storage (such as floppy disks, hard disks, magnetic tapes, magneto-optical disks (MO)), optical storage (such as CDs, DVDs, BDs, HVDs, etc.), and semiconductor storage (such as ROM, EPROM, EEPROM, non-volatile memory (NAND FLASH), solid-state drives (SSDs)), etc.

[0204] Those skilled in the art will appreciate that the embodiments of the present application may be provided as methods, systems, or computer program products. Therefore, the present application may adopt the form of a complete hardware embodiment, a complete software embodiment, or an embodiment in combination with software and hardware. Moreover, the present application may adopt the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage and optical storage, etc.) that contain computer-usable program code.

[0205] The present application is described with reference to the flowcharts and / or block diagrams of the methods, apparatuses, and computer program products according to the embodiments of the present application. It should be understood that each process and / or block in the flowchart and / or block diagram, as well as the combination of the processes and / or blocks in the flowchart and / or block diagram, can be implemented by computer executable instructions. These computer executable instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing device to generate a machine, so that the instructions executed by the processor of the computer or other programmable data processing device generate instructions for implementing the processes in the flowchart and / or block diagram. Figure 1 A process or multiple processes and / or boxes Figure 1 A device that provides the functions specified in a block or multiple blocks.

[0206] These processor executable instructions may also be stored in a processor readable memory that can direct a computer or other programmable data processing device to operate in a specific manner, so that the instructions stored in the processor readable memory produce an article of manufacture including an instruction device, which implements the process Figure 1 A process or multiple processes and / or boxes Figure 1 A function specified in one or more boxes.

[0207] These processor-executable instructions may also be loaded onto a computer or other programmable data processing device so that a series of operational steps are executed on the computer or other programmable device to produce a computer-implemented process, thereby providing instructions for executing on the computer or other programmable device to implement the process. Figure 1 A process or multiple processes and / or boxes Figure 1 The steps for the functions specified in one or more boxes.

[0208] Obviously, those skilled in the art can make various changes and modifications to the present application without departing from the spirit and scope of the present application. Thus, if these modifications and variations 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 include these modifications and variations.

Claims

1. A TCI status indication method, characterized in that: Applied to a terminal, the TCI status indication method includes: Receive signaling sent by a wireless access network device, where the signaling is used to indicate multiple groups of TCI states, where the number of groups of the multiple groups of TCI states is a first number, where a group of TCI states includes at least one TCI state, and where the first number is used to determine a time when the TCI state takes effect, and where the terminal communicates with the wireless access network device according to the TCI state at the time when the TCI state takes effect.

2. The TCI status indication method according to claim 1, characterized in that: The signaling indicates a first TCI code point, and the first TCI code point maps the multiple groups of TCI states.

3. The TCI status indication method according to claim 1, characterized in that: The signaling indicates multiple second TCI code points, the effective time of at least one TCI state mapped by each second TCI code point is the same, and different second TCI code points correspond to different effective times.

4. The TCI status indication method according to claim 3, characterized in that: The signaling is carried in first downlink control information, where the first downlink control information is downlink control information used for downlink scheduling.

5. The TCI status indication method according to claim 4, characterized in that: The first downlink control information includes a first TCI field, and the first TCI field indicates the multiple second TCI code points.

6. The TCI status indication method according to claim 4, characterized in that: The first downlink control information includes multiple first TCI fields, and each first TCI field indicates a second TCI code point.

7. The TCI status indication method according to claim 3, characterized in that: The signaling is carried in second downlink control information, where the second downlink control information is downlink control information not used for downlink scheduling.

8. The TCI status indication method according to claim 7, characterized in that: Some fields in the second downlink control information indicate the multiple second TCI code points.

9. The TCI status indication method according to claim 7, characterized in that: A partial field in the second downlink control information indicates the number of the second TCI code points.

10. The TCI status indication method according to claim 1, characterized in that: The signaling is carried in the third downlink control information, the third downlink control information is the downlink control information encrypted by the preset wireless network temporary identifier, and the third downlink control information includes: a first field and a second TCI field, the first field indicates the first number of third TCI code points.

11. The TCI status indication method according to claim 10, characterized in that: The number of the second TCI domain is 1, and the second TCI domain indicates the first number of third TCI code points.

12. The TCI status indication method according to claim 10, characterized in that: The number of the second TCI domains is a second number, the second number is greater than the first number, the second number is configured on the network side or predetermined by the network side and the terminal, the first number of second TCI domains is determined from the second number of second TCI domains, and each of the second TCI domains indicates a third TCI code point.

13. The TCI status indication method according to any one of claims 1 to 12, characterized in that: After receiving the signaling sent by the wireless access network device, the method further includes: Determine the effective time of one set of TCI states; And based on the effective time and offset duration value of one group of TCI states, the effective time of other groups of TCI states is determined, and the offset duration value is configured on the network side or predetermined by the network side and the terminal.

14. The TCI status indication method according to claim 2, characterized in that: Before receiving the signaling sent by the wireless access network device, the method further includes: Receive an activation instruction sent by the wireless access network device, the activation instruction carrying at least one second domain, wherein the i-th second domain is used to represent the number of effective moments of the TCI state mapped by the i-th TCI code point or the number of groups of TCI states, and i is a positive integer.

15. The TCI status indication method according to claim 14, characterized in that: The activation instruction also carries at least one third field, wherein the i-th third field is used to indicate the number of TCI states mapped by the i-th group of TCI states.

16. A TCI status indication method, characterized in that: Applied to wireless access network equipment, the TCI status indication method includes: Generate signaling; The signaling is sent to the terminal, where the signaling is used to indicate multiple groups of TCI states, where the number of groups of the multiple groups of TCI states is a first number, where a group of TCI states includes at least one TCI state, and where the first number is used to determine the effective time of the TCI state. The terminal communicates with the wireless access network device according to the TCI state at the effective time of the TCI state.

17. The TCI status indication method according to claim 16, characterized in that: The signaling indicates a first TCI code point, and the first TCI code point maps the multiple groups of TCI states.

18. The TCI status indication method according to claim 16, characterized in that: The signaling indicates multiple second TCI code points, the effective time of at least one TCI state mapped by each second TCI code point is the same, and different second TCI code points correspond to different effective times.

19. The TCI status indication method according to claim 18, characterized in that: The signaling is carried in first downlink control information, where the first downlink control information is downlink control information used for downlink scheduling.

20. The TCI status indication method according to claim 19, characterized in that: The first downlink control information includes a first TCI field, and the first TCI field indicates the multiple second TCI code points.

21. The TCI status indication method according to claim 19, characterized in that: The first downlink control information includes multiple first TCI fields, and each second TCI field indicates a second TCI code point.

22. The TCI status indication method according to claim 18, characterized in that: The signaling is carried in second downlink control information, where the second downlink control information is downlink control information not used for downlink scheduling.

23. The TCI status indication method according to claim 22, characterized in that: Some fields in the second downlink control information indicate the multiple second TCI code points.

24. The TCI status indication method according to claim 22, characterized in that: A partial field in the second downlink control information indicates the number of the second TCI code points.

25. The TCI status indication method according to claim 16, characterized in that: The signaling is carried in the third downlink control information, the third downlink control information is the downlink control information encrypted by the preset wireless network temporary identifier, and the third downlink control information includes: a first field and a second TCI field, the first field indicates the first number of third TCI code points.

26. The TCI status indication method according to claim 25, characterized in that: The number of the second TCI domain is 1, and the second TCI domain indicates the first number of third TCI code points.

27. The TCI status indication method according to claim 26, characterized in that: The number of the second TCI domains is a second number, the second number is greater than the first number, the second number is configured on the network side or predetermined by the network side and the terminal, the first number of second TCI domains is determined from the second number of second TCI domains, and each of the second TCI domains indicates a third TCI code point.

28. The TCI status indication method according to claim 17, characterized in that: The signaling sent to the terminal also includes: An activation instruction sent to the terminal, the activation instruction carries at least one second field, wherein the i-th second field is used to represent the number of effective moments of the TCI state mapped by the i-th TCI code point or the number of groups of TCI states, and i is a positive integer.

29. The TCI status indication method according to claim 28, characterized in that: The activation instruction also carries at least one third field, wherein the i-th third field is used to indicate the number of TCI states mapped by the i-th group of TCI states.

30. A TCI status indication device, characterized in that: Applied to a terminal, the TCI status indication device comprises: A receiving unit is used to receive signaling sent by a wireless access network device, where the signaling is used to indicate multiple groups of TCI states, where the number of groups of the multiple groups of TCI states is a first number, where a group of TCI states includes at least one TCI state, and where the first number is used to determine a time when the TCI state takes effect. The terminal communicates with the wireless access network device according to the TCI state at the time when the TCI state takes effect.

31. A TCI status indicator device, characterized in that: Applied to wireless access network equipment, the TCI status indication device comprises: A generating unit, used for generating a signal; A sending unit is used to send the signaling to the terminal, where the signaling is used to indicate multiple groups of TCI states, where the number of groups of the multiple groups of TCI states is a first number, where a group of TCI states includes at least one TCI state, and where the first number is used to determine the effective time of the TCI state. The terminal communicates with the wireless access network device according to the TCI state at the effective time of the TCI state.

32. A terminal, characterized in that: Includes memory, transceiver and processor: The memory is used to store computer programs; The transceiver is used to send and receive data under the control of the processor; The processor is configured to read the computer program in the memory and perform the following operations: Receive signaling sent by a wireless access network device, where the signaling is used to indicate multiple groups of TCI states, where the number of groups of the multiple groups of TCI states is a first number, where a group of TCI states includes at least one TCI state, and where the first number is used to determine a time when the TCI state takes effect, and where the terminal communicates with the wireless access network device according to the TCI state at the time when the TCI state takes effect.

33. A wireless access network device, characterized in that: Includes memory, transceiver and processor: The memory is used to store computer programs; The transceiver is used to send and receive data under the control of the processor; The processor is configured to read the computer program in the memory and perform the following operations: Generate signaling; The signaling is sent to the terminal, where the signaling is used to indicate multiple groups of TCI states, where the number of groups of the multiple groups of TCI states is a first number, where a group of TCI states includes at least one TCI state, and where the first number is used to determine the effective time of the TCI state. The terminal communicates with the wireless access network device according to the TCI state at the effective time of the TCI state.

34. A processor-readable storage medium, characterized in that: The processor-readable storage medium stores a computer program, and the computer program is used to enable the processor to execute the TCI status indication method described in any one of claims 1-29.

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