TCI state indication method, apparatus, and storage medium

Abstract

Provided in the present disclosure are a TCI state indication method, an apparatus, and a storage medium. The method comprises: receiving signaling sent by a wireless access network device, wherein the signaling is used for indicating a plurality of groups of TCI states, the number of groups of the plurality of groups of TCI states is a first number, one group of TCI states comprises at least one TCI state, the first number is used for determining activation times of the TCI states, and a terminal and the wireless access network device communicate according to the TCI states at the activation times of the TCI states. Thus, multiple groups of TCI states having multiple activation times which are sent by a wireless access network device can be received at a time, such that the present disclosure can reduce the overhead of network resources.

Description

TCI status indication method, device and storage medium

[0001] This disclosure claims priority to the Chinese patent application filed with the China Patent Office on November 16, 2023, with application number 202311533402.3 and application name “TCI status indication method, device and storage medium”, the entire contents of which are incorporated by reference in this disclosure. Technical Field

[0002] The present disclosure relates to the field of communications, and in particular to a TCI status indication method, device, and storage medium. Background Art

[0003] In NR (New Radio) systems, to combat path loss in high-frequency scenarios, the transmitter and receiver use beam management (BM) to obtain matching beam pairs to improve beamforming gain. In the existing downlink beam management process, the radio access network equipment selects an appropriate Tx beam for subsequent communications based on beam measurement information reported by the UE (terminal) and indicates the selected beam information (spatial receive parameters) to the UE via a Transmission Configuration Indicator (TCI).

[0004] The main drawback of the existing technology is that when the wireless access network equipment indicates 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 high network resource overhead.

[0005] Summary of the Invention

[0006] The present disclosure 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.

[0007] In a first aspect, the present disclosure 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.

[0008] Optionally, the signaling indicates one first TCI code point, and the first TCI code point maps multiple groups of TCI states.

[0009] Optionally, the signaling indicates multiple second TCI code points, and the effective time of at least one TCI state mapped to each second TCI code point is the same, and the effective times corresponding to different second TCI code points are different.

[0010] Optionally, the signaling is carried in first downlink control information, and the first downlink control information is downlink control information used for downlink scheduling.

[0011] Optionally, the first downlink control information includes a first TCI field, and the first TCI field indicates multiple second TCI code points.

[0012] Optionally, the first downlink control information includes multiple first TCI fields, and each first TCI field indicates a second TCI code point.

[0013] 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.

[0014] Optionally, some fields in the second downlink control information indicate multiple second TCI code points.

[0015] Optionally, some fields in the second downlink control information indicate the number of second TCI code points.

[0016] Optionally, the signaling is carried in the third downlink control information, which is the downlink control information encrypted by the preset wireless network temporary identifier. The third downlink control information includes: a first field and a second TCI field, and the first field indicates the first number of third TCI code points.

[0017] Optionally, the number of second TCI fields is 1, and the second TCI field indicates the first number of third TCI code points.

[0018] 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.

[0019] 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.

[0020] Optionally, before receiving the signaling sent by the wireless access network device, the method further includes:

[0021] Receive an activation instruction sent by a wireless access network device, where 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.

[0022] 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 of the i-th group of TCI state mappings.

[0023] In a second aspect, the present disclosure 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 being used to indicate multiple groups of TCI states, the number of groups of multiple groups of TCI states being a first number, a group of TCI states containing at least one TCI state, the first number being used to determine the effective time of the TCI state, and the terminal and the wireless access network device communicating according to the TCI state at the effective time of the TCI state.

[0024] Optionally, the signaling indicates one first TCI code point, and the first TCI code point maps multiple groups of TCI states.

[0025] Optionally, the signaling indicates multiple second TCI code points, and the effective time of at least one TCI state mapped to each second TCI code point is the same, and the effective times corresponding to different second TCI code points are different.

[0026] Optionally, the signaling is carried in first downlink control information, and the first downlink control information is downlink control information used for downlink scheduling.

[0027] Optionally, the first downlink control information includes a first TCI field, and the first TCI field indicates multiple second TCI code points.

[0028] Optionally, the first downlink control information includes multiple first TCI fields, and each second TCI field indicates a second TCI code point.

[0029] 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.

[0030] Optionally, some fields in the second downlink control information indicate multiple second TCI code points.

[0031] Optionally, some fields in the second downlink control information indicate the number of second TCI code points.

[0032] Optionally, the signaling is carried in third downlink control information, which 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, where the first field indicates a first number of third TCI code points.

[0033] Optionally, the number of second TCI fields is 1, and the second TCI field indicates the first number of third TCI code points.

[0034] 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.

[0035] Optionally, before sending the signaling to the terminal, the following steps are further included:

[0036] 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.

[0037] 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 of the i-th group of TCI state mappings.

[0038] In a third aspect, the present disclosure provides a TCI status indication device, which is applied to a terminal. The TCI status indication device includes:

[0039] 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 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.

[0040] In a fourth aspect, the present disclosure provides a TCI status indication device, which is applied to a wireless access network device. The TCI status indication device includes:

[0041] A generating unit, configured to generate signaling;

[0042] A sending unit 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.

[0043] In a fifth aspect, the present disclosure provides a terminal, including a memory, a transceiver, and a processor:

[0044] memory for storing computer programs;

[0045] a transceiver for transmitting and receiving data under the control of the processor;

[0046] A processor is configured to read a computer program from a memory and perform the following operations:

[0047] 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 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.

[0048] In a sixth aspect, the present disclosure provides a wireless access network device, including a memory, a transceiver, and a processor:

[0049] memory for storing computer programs;

[0050] a transceiver for transmitting and receiving data under the control of the processor;

[0051] A processor is configured to read a computer program from a memory and perform the following operations:

[0052] Signaling is sent 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 one 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.

[0053] In a seventh aspect, the present disclosure provides a processor-readable storage medium, which stores 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.

[0054] In an eighth aspect, the present disclosure provides a computer program product comprising instructions, which, when executed on a computer, causes the computer to execute the first aspect described above.

[0055] According to the TCI status indication method, device and storage medium provided in the present disclosure, the present disclosure receives signaling sent by a wireless access network device, and the signaling is used to indicate multiple groups of TCI statuses. The number of groups of multiple TCI statuses is a first number, and a group of TCI statuses includes at least one TCI state. The first number is used to determine the effective time of the TCI status. The terminal and the wireless access network device communicate according to the TCI status at the effective time of the TCI status, thereby realizing the reception of multiple groups of TCI statuses at multiple effective times sent by the wireless access network device at one time, thereby reducing the overhead of network resources.

[0056] 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 disclosure, nor are they intended to limit the scope of the present disclosure. Other features of the present disclosure will become easier to understand through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0057] In order to more clearly illustrate the technical solutions in the present disclosure 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 disclosure. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0058] FIG1 is a schematic diagram of AI-based time-domain beam prediction provided by an embodiment of the present disclosure;

[0059] FIG2 is a schematic diagram of a TCI status indication method provided by an embodiment of the present disclosure;

[0060] FIG3 is a schematic diagram of another TCI status indication method provided by an embodiment of the present disclosure;

[0061] FIG4 is a schematic diagram of a unified TCI state activation instruction provided by an embodiment of the present disclosure;

[0062] FIG5 is a schematic diagram of another unified TCI state activation instruction provided by an embodiment of the present disclosure;

[0063] FIG6 is a schematic diagram of another TCI status indication method provided by an embodiment of the present disclosure;

[0064] FIG7 is a flow chart of a first TCI status indication device provided by an embodiment of the present disclosure;

[0065] FIG8 is a flow chart of a second TCI status indication device provided by an embodiment of the present disclosure;

[0066] FIG9 is a schematic diagram of a terminal provided in an embodiment of the present disclosure;

[0067] FIG10 is a schematic diagram of a wireless access network device provided in an embodiment of the present disclosure. DETAILED DESCRIPTION

[0068] In the present disclosure, "at least one" means one or more, and "more" 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 items" 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 plural.

[0069] It is understood that the various steps or operations in the embodiments of the present disclosure are merely examples, and the embodiments of the present disclosure may also perform other operations or variations of various operations. In addition, the various steps may be performed in a different order than those presented in the embodiments of the present disclosure, and it is possible that not all operations in the embodiments of the present disclosure need to be performed.

[0070] The following will be combined with the accompanying drawings in the embodiments of the present disclosure to clearly and completely describe the technical solutions in the embodiments of the present disclosure. Obviously, the embodiments described are only part of the embodiments of the present disclosure and not all of the embodiments. Based on the embodiments of the present disclosure, all other embodiments obtained by ordinary technicians in this field without making any creative efforts shall fall within the scope of protection of the present disclosure.

[0071] The technical solutions provided by the embodiments of the present disclosure can be applicable to a variety of systems, for example, the applicable systems may be global system of mobile communication (GSM) systems, code division multiple access (CDMA) systems, wideband code division multiple access (WCDMA) general packet radio service (GPRS) systems, long term evolution (LTE) systems, LTE frequency division duplex (FDD) systems, LTE time division duplex (TDD) systems, long term evolution advanced (LTE-A) systems, universal mobile telecommunication systems (UMTS), worldwide interoperability for microwave access (WiMAX) systems, 6G new air interface (NR) systems, 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.

[0072] In order to better understand this solution, we first briefly describe the problems existing in the prior art of this solution, as follows: Refer to Table 1 for the English abbreviations and their corresponding English full names and Chinese interpretations:

[0073] Table 1

[0074] In related technologies, one TCI code point can be used to indicate the TCI status of an uplink channel, a downlink channel, or both. The DCI carrying the TCI field can be a DCI that schedules a PDSCH, or a PDSCH that is only used to indicate the TCI status without scheduling a PDSCH. The standard specifies that the TCI status indicated by the TCI field takes effect at least X symbols after the ACK of the PDSCH scheduled by the DCI or after the ACK of the DCI, where X depends on the UE's capabilities.

[0075] Certain methods can be used to measure the optimal beam at multiple future moments, such as the AI ​​(artificial intelligence) / ML (machine learning) method shown in Figure 1. This method uses the beam measurement results at T1, T2, T3, and T4 to predict the optimal beam at T5, T6, T7, and T8.

[0076] In related technologies, the TCI states indicated by the base station through one TCI indication signaling are at the same time, that is, the effective time of these TCI states is the same. If the optimal beam between the base station and the UE changes frequently, the transmission of DCI used only for TCI state indication without PDSCH scheduling will also occur frequently, resulting in large DCI overhead. As shown in Figure 1, if the optimal beams at the four times T5, T6, T7, and T8 are different, four DCIs will be sent to indicate their TCI according to the existing mechanism. In order to reduce DCI overhead, the present invention proposes a method that can indicate the TCI states of multiple times in one time, thereby reducing DCI overhead.

[0077] To solve the above problems, an embodiment of the present disclosure 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 statuses. The number of groups of 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. The terminal and the wireless access network device communicate according to the TCI state at the effective time of the TCI state.

[0078] Exemplarily, with reference to FIG1 , the embodiment of the present disclosure takes into account the flexibility of TCI state indication. When the base station indicates the TCI state at multiple times once, the base station may update its beam according to the network conditions before the indicated TCI state takes effect. As shown in FIG1 , the base station indicates the TCI state at four times (T5, T6, T7, and T8) according to the prediction results of the AI ​​model. The base station sends TCI indication signaling before T5, which indicates that the effective times corresponding to the multiple TCI states are T5, T6, T7, and T8. Assuming that after T5 and before T6, the base station decides to change the beam at times T6, T7, and T8 according to the network conditions, the base station sends TCI indication signaling, which indicates that the effective times corresponding to the multiple TCI states are T6, T7, and T8, that is, the beams at these three times are updated. In this example, the base station indicates TCI twice. The first TCI status indicates effective time / times for four time periods (T5, T6, T7, and T8), while the second TCI status indicates effective time / times for three time periods (T6, T7, and T8). Therefore, the design solution should consider methods where the base station indicates TCI status at multiple time periods at a time, and the number of time periods for a single TCI status indication varies (is not fixed).

[0079] Among them, the method and the device are based on the same application concept. Since the principles of solving problems by the method and the device are similar, the implementation of the device and the method can refer to each other, and the repeated parts will not be repeated.

[0080] The first TCI status indication method provided by the embodiment of the present disclosure 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 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.

[0081] 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 time when the multiple groups of TCI states take effect. 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, and then n takes a value between 1 and 4.

[0082] Referring to Figure 2, if n is 4, the signaling indicates four groups of TCI states, namely Group A, Group B, Group C, and Group D. Group A TCI states include TCI state #1 and TCI state #2. Group B TCI states include TCI state #3. Group C TCI states include TCI state #4. Group D TCI states include TCI state #5 and TCI state #6. The effective time corresponding to the Group A TCI state is effective time a1, i.e., the effective time of TCI state #1 and TCI state #2 is a1. The effective time corresponding to the Group B TCI state is effective time a2, i.e., the effective time of TCI state #3 is a2. The effective time corresponding to the Group C TCI state is effective time a3, i.e., the effective time of TCI state #4 is a3. The effective time corresponding to the Group D TCI state is effective time a4, i.e., the effective time of TCI state #5 and TCI state #6 is a4.

[0083] In an optional embodiment, referring to FIG3 , signaling indicates one first TCI code point, and the first TCI code point maps to multiple groups of TCI states. The signaling received by the UE indicates one first TCI code point (such as the first TCI code point in FIG3 ), and the multiple groups of TCI states mapped to the one first TCI code point take effect at n times.

[0084] 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 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.

[0085] Specifically, the base station activates the TCI state and sends an activation instruction to the terminal. The activation instruction indicates the number of effective times of the TCI state mapped to each TCI code point, and determines the effective time of each TCI state according to certain rules.

[0086] 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 of the i-th group of TCI state mappings.

[0087] Specifically, the number of effective moments corresponding to the multiple groups of TCI states mapped to 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. 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.

[0088] If the number of valid time points corresponding to a first TCI code point is greater than 1, the first TCI code point is considered to include multiple groups of TCI states, and the valid time points for each group of TCI states are the same. For example, if the number of valid time points corresponding to a 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 by the third field in the activation instruction. The valid time points for each group of TCI states are determined according to the following principles:

[0089] The effective time of the first TCI state for each TCI code point can follow the existing unified TCI beam effective time definition. The time offset between the effective time of the remaining TCI states and the previous one can be predefined or indicated by the base station. For example, if the effective time offset 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.

[0090] In the existing unified TCI indication method, RRC configures several TCI states. MAC-CE signaling activates some of these TCI states to form TCI codepoints. The number of activated TCI codepoints is S, ranging from 1 to 8. When the number of activated TCI codepoints S is greater than 1, DCI signaling selects one of the S activated codepoints. Figure 4 shows the MAC-CE signaling used to activate / deactivate TCI states.

[0091] In existing MAC-CE signaling, the Serving cell ID, DL BWP ID, and UL BWP ID are used to indicate the serving cell index, downlink bandwidth, and uplink bandwidth index of the activated TCI state application, respectively; the Pi field is used to indicate whether the i-th TCI code point includes one or two 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.

[0092] Furthermore, in the disclosed embodiment, a second field is added to the TCI state activation instruction. The second field is used to indicate the number of effective moments included in the i-th 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 (the first number) or the number of TCI state groups included in the i-th TCI code point. Assuming that 8 TCI code points are activated, the activation instruction is shown in Figure 5:

[0093] When Ti=00, it means that the number of valid moments of the TCI state included in the i-th TCI code point (the number of TCI state groups) is 1;

[0094] When Ti=01, it means that the number of valid moments of the TCI state included in the i-th TCI code point (the number of TCI state groups) is 2;

[0095] When Ti=10, it means that the number of valid moments of the TCI state included in the i-th TCI code point (the number of TCI state groups) is 3;

[0096] When Ti=11, it means that the number of valid moments of the TCI state included in the i-th TCI code point (the number of TCI state groups) is 4;

[0097] In the above, i = 1, 2, ..., 8.

[0098] 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). 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.

[0099] The UE receives the MAC-CE activation command and the DCI signaling carrying the TCI field. The TCI field of the DCI indicates code point 001, which is the second TCI code point. Assuming T2 = 10, the number of valid time points of the TCI state included in the second TCI code point is 3, that is, it includes 3 groups of TCI states, which are:

[0100] Group 1: TCI state #16 (downlink TCI state);

[0101] Group 2: TCI status #12 (uplink TCI);

[0102] Group 3: TCI state #9 (downlink TCI state), TCI state #20 (uplink TCI state).

[0103] Furthermore, 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 based on the third field (Pi field). The first group of TCI states takes effect at the same time as the existing mechanism, which is the X symbol after receiving the ACK. If the base station configures the effective time offset value to be 500ms, the second group of TCI states takes effect 500ms after the first group of TCI states takes effect, and the third group of TCI states takes effect 500ms after the second group of TCI states takes effect. The UE receives downlink channels / signals and transmits uplink channels / signals based on the effective time of each group of TCI states.

[0104] In another optional embodiment, referring to FIG6 , 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.

[0105] In an embodiment of the present disclosure, 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. Specifically, the signaling is carried in the first downlink control information, and the first downlink control information is the 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.

[0106] Optionally, the signaling is carried in second downlink control information, where the second downlink control information is downlink control information not used for downlink scheduling, i.e., carried in DCI that does not schedule PDSCH. A partial field in the second downlink control information indicates multiple second TCI code points. A partial field in the second downlink control information indicates the number of second TCI code points.

[0107] In an embodiment of the present disclosure, the partial domain indicating multiple second TCI code points and the partial domain indicating the number of second TCI code points are different domains. Specifically, the signaling received by the UE includes n TCI code points, the effective time of the TCI state mapped by 1 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 domain 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 domain in the second downlink control information indicates 1 second TCI code point, and the remaining second TCI code points are indicated by the reserved domain in the second downlink control information.

[0108] 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:

[0109] 1) CS-RNTI scrambles the CRC (cyclic redundancy check) of the second downlink control information

[0110] 2) Determine whether the second downlink control information is used only to indicate the TCI state based on the value of the special field (such as the existing RV / MCS / NDI / FDRA field, which is part of the above fields);

[0111] 3) Determine 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);

[0112] 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.

[0113] Table 2

[0114] Table 2 only provides a method for splicing and reading bits as TCI code points based on multiple fields in DCI. Other reading methods are not excluded, such as reading multiple fields from high to low, etc., which are not limited here.

[0115] 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. 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.

[0116] In the embodiment of the present disclosure, 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 manner as the existing protocol method.

[0117] 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:

[0118] RV domain: set to all "1";

[0119] MCS field: all "1";

[0120] NDI field: set to "0";

[0121] FDRA field: all "0" (FDRA type is Type 0);

[0122] SRS request field: "01".

[0123] As can be seen from Table 1, the UE knows that the DCI does not schedule PDSCH based on the values ​​of the RV, MCS, NDI and FDRA fields, and is only used for TCI indication. 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 spliced ​​together to form 7 bits. The UE reads 6 bits from low to high as the first TCI code point and the second TCI code point. The remaining bits are reserved bits.

[0124] After the UE reads the first and second TCI code points, the TCI state corresponding to the first TCI code point takes effect at the same time as the existing mechanism: the X symbol after receiving the ACK. If the base station configures the effective time offset as 500ms, the TCI state corresponding to the second TCI code point takes effect 500ms after the effective time of the TCI state corresponding to the first TCI code point. The UE receives downlink channels / signals and transmits uplink channels / signals based on the effective time of the TCI state corresponding to each TCI code point.

[0125] In another optional embodiment, the signaling is carried in the third downlink control information, which is the downlink control information encrypted by the preset wireless network temporary identifier. The third downlink control information includes: a first field and a second TCI field, and the first field indicates the first number of third TCI code points.

[0126] The number of the second TCI field is 1, and the second TCI field indicates the first number of third TCI code points.

[0127] 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.

[0128] In an embodiment of the present disclosure, 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 a TCI code point. When the UE parses the DCI scrambled by this type of RNTI, it can be learned that the DCI is used to indicate a 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, one second TCI domain can indicate N third TCI code points; when the number of second TCI domains is N, each second TCI domain indicates one 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 moments of the TCI states of different code points.

[0129] 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.

[0130] 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 the TCI.

[0131] Specifically, the number of second TCI fields may be N (N is the second number), and the UE reads n (n is the first number) of these fields, where n is the number of TCI code points indicated by the first field, and N is the maximum number of TCI code points indicated by the first field. When n is less than N, the excess fields are reserved.

[0132] Alternatively, the number of second TCI fields is 1, and the bit length of the second TCI field is N*L, where n*L bits are used to indicate n TCI code points, where n is the number of TCI code points indicated by the TCI_Num field, L is the number of bits for each TCI code point, and N is the maximum number of TCI code points indicated by the TCI_Num field. When n is less than N, the excess bits are reserved.

[0133] The effective time of the TCI state for the first third TCI code point can follow the existing unified TCI beam effective time definition. The time offset between the effective time of the TCI state for each subsequent third TCI code point and the effective time of the previous third TCI code point can be predefined or indicated by the base station. In the disclosed embodiments, the base station configures multiple TCI states via RRC signaling and then activates some of these TCI states via MAC-CE signaling to form TCI code points, similar to existing protocol methods.

[0134] Assuming that the maximum 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 values ​​of the first field and the corresponding number of TCI code points indicated are shown in Table 3 below.

[0135] Table 3

[0136] The second TCI field is 12 bits long and indicates up to four third TCI code points, each occupying 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 least significant to most significant, indicate the first, second, ..., nth third TCI code points, respectively.

[0137] The CRC check bits of the third downlink control information sent by the base station are scrambled using the TCI-RNTI (preset radio network temporary identifier) ​​of the UE. The TCI-RNTI of the UE is configured by the base station.

[0138] The UE receives the third downlink control information. If the instruction is parsed based on the TCI-RNTI, it is learned that the third downlink control information is used to indicate the third TCI code point or TCI status. The UE reads the first field. The value of the first field is "10", indicating that the base station has indicated three third TCI code points. The UE reads the nine bits from the lowest to the highest bit in the second TCI field. These nine bits are grouped in groups of three, indicating the first, second, and third third TCI code points, respectively.

[0139] 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 the ACK. If the base station configures the effective time offset value to be 500ms, 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 transmits uplink channels / signals according to the effective time of the TCI state corresponding to each third TCI code point.

[0140] The embodiment of the present disclosure 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 disclosure considers a variety of indication methods. The first is to indicate one TCI code point at a time, and the effective moment of the TCI state mapped by one TCI code point is n moments. The second is to use part of the field in the DCI to indicate the number of TCI code points and the TCI code point. The third is a method of adding a new first field in the DCI and reading the TCI code point based on the newly added first field. Among them, the indication of the first method is flexible and can be used when using MAC-CE or DCI to indicate TCI, and there is no change to 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 new DCI bits. Although the third method occupies more DCI overhead, it is not limited to the DCI format and can indicate more TCI states.

[0141] Furthermore, the present disclosure 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 being used to indicate multiple groups of TCI states, the number of groups of the multiple groups of TCI states being a first number, a group of TCI states containing at least one TCI state, the first number being used to determine the effective time of the TCI state, and the terminal and the wireless access network device communicating according to the TCI state at the effective time of the TCI state.

[0142] The specific implementation process of this embodiment refers to the above embodiment and will not be repeated here.

[0143] In addition, the embodiment of the present disclosure provides a TCI status indication device 70. Referring to FIG. 7 , the TCI status indication device 70 is applied to a terminal and includes:

[0144] A receiving unit 71 is configured 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 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 based on the TCI state at the time when the TCI state takes effect.

[0145] Optionally, the signaling indicates one first TCI code point, and the first TCI code point maps multiple groups of TCI states.

[0146] Optionally, the signaling indicates multiple second TCI code points, and the effective time of at least one TCI state mapped to each second TCI code point is the same, and the effective times corresponding to different second TCI code points are different.

[0147] Optionally, the signaling is carried in first downlink control information, and the first downlink control information is downlink control information used for downlink scheduling.

[0148] Optionally, the first downlink control information includes a first TCI field, and the first TCI field indicates multiple second TCI code points.

[0149] Optionally, the first downlink control information includes multiple first TCI fields, and each first TCI field indicates a second TCI code point.

[0150] 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.

[0151] Optionally, some fields in the second downlink control information indicate multiple second TCI code points.

[0152] Optionally, some fields in the second downlink control information indicate the number of second TCI code points.

[0153] Optionally, the signaling is carried in the third downlink control information, which is the downlink control information encrypted by the preset wireless network temporary identifier. The third downlink control information includes: a first field and a second TCI field, and the first field indicates the first number of third TCI code points.

[0154] Optionally, the number of second TCI fields is 1, and the second TCI field indicates the first number of third TCI code points.

[0155] 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.

[0156] Optionally, a determination unit (not shown) is also included, 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.

[0157] Optionally, it also includes a receiving unit (not shown) for receiving an activation instruction sent by the wireless access network device before receiving the signaling sent by the 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 to the i-th TCI code point or the number of groups of TCI states, and i is a positive integer.

[0158] 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 of the i-th group of TCI state mappings.

[0159] 8 , the present disclosure provides a TCI status indication device 80, which is applied to a wireless access network device. The TCI status indication device 80 includes:

[0160] A generating unit 81, configured to generate signaling;

[0161] A 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.

[0162] Optionally, the signaling indicates one first TCI code point, and the first TCI code point maps multiple groups of TCI states.

[0163] Optionally, the signaling indicates multiple second TCI code points, and the effective time of at least one TCI state mapped to each second TCI code point is the same, and the effective times corresponding to different second TCI code points are different.

[0164] Optionally, the signaling is carried in first downlink control information, and the first downlink control information is downlink control information used for downlink scheduling.

[0165] Optionally, the first downlink control information includes a first TCI field, and the first TCI field indicates multiple second TCI code points.

[0166] Optionally, the first downlink control information includes multiple first TCI fields, and each second TCI field indicates a second TCI code point.

[0167] 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.

[0168] Optionally, some fields in the second downlink control information indicate multiple second TCI code points.

[0169] Optionally, some fields in the second downlink control information indicate the number of second TCI code points.

[0170] Optionally, the signaling is carried in third downlink control information, which 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, where the first field indicates a first number of third TCI code points.

[0171] Optionally, the number of second TCI fields is 1, and the second TCI field indicates the first number of third TCI code points.

[0172] 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.

[0173] Optionally, the sending unit is also used to send an activation instruction to the terminal before sending signaling 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.

[0174] 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 of the i-th group of TCI state mappings.

[0175] 9 , the present disclosure provides a terminal including a memory 91 , a transceiver 92 , and a processor 93 :

[0176] Memory 91, for storing computer programs;

[0177] a transceiver 92 for transmitting and receiving data under the control of the processor;

[0178] The processor 93 is configured to read the computer program in the memory and perform the following operations:

[0179] 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 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.

[0180] In FIG9 , the bus architecture may include any number of interconnected buses and bridges, specifically linking together various circuits of one or more processors represented by processor 93 and memory represented by memory 91. 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 over a transmission medium, such as a wireless channel, a wired channel, an optical cable, and the like. 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 connecting to required external or internal devices. Connected devices include, but are not limited to, a keypad, a display, a speaker, a microphone, a joystick, and the like.

[0181] 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.

[0182] 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.

[0183] The processor 93 is configured to execute any terminal-related method provided by the embodiments of the present disclosure according to the obtained executable instructions by calling the computer program stored in the memory 91. The processor and the memory may also be physically separated.

[0184] 10 , the present disclosure provides a wireless access network device, including a memory 101, a transceiver 102, and a processor 103:

[0185] Memory 101, used for storing computer programs;

[0186] The transceiver 102 is configured to transmit and receive data under the control of the processor 103;

[0187] The processor 103 is configured to read the computer program in the memory 101 and perform the following operations:

[0188] 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, one 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.

[0189] In FIG10 , the bus architecture may include any number of interconnected buses and bridges, specifically linking together various circuits of one or more processors represented by processor 103 and memory represented by memory 101. 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 102 may be a plurality of components, i.e., a transmitter and a receiver, providing a unit for communicating with various other devices over a transmission medium, such as a wireless channel, a wired channel, an optical cable, or 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.

[0190] The processor 103 may be a CPU, an ASIC, an FPGA or a CPLD, and the processor may also adopt a multi-core architecture.

[0191] The processor 103 is configured to execute any method related to a wireless access network device provided by the embodiment of the present disclosure according to the obtained executable instructions by calling the computer program stored in the memory 101. The processor and the memory may also be arranged physically separately.

[0192] It should be noted here that the above-mentioned device provided by the present disclosure 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.

[0193] It should be noted that the division of units in the embodiments of the present disclosure is schematic and is merely a logical functional division. In actual implementation, other division methods may be used. Furthermore, the functional units in the various embodiments of the present disclosure may be integrated into a single processing unit, or each unit may exist physically separately, or two or more units may be integrated into a single unit. The aforementioned integrated units may be implemented in the form of hardware or software functional units.

[0194] 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 disclosure 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 for enabling a computer device (which can be a personal computer, server, or network device, etc.) or a processor to execute all or part of the steps of the various embodiments of the present disclosure. The aforementioned storage medium includes: various media that can store program codes, such as a USB flash drive, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk.

[0195] The present disclosure provides a processor-readable storage medium storing a computer program configured to cause a processor to execute any of the terminal-related methods provided in the present disclosure. The processor is configured to implement all of the method steps implemented by the terminal in the aforementioned method embodiments, achieving the same technical effects. The parts of this embodiment that are identical to those in the method embodiments and their beneficial effects are not further detailed herein.

[0196] 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 ROMs, EPROMs, EEPROMs, non-volatile memories (NAND FLASH), solid-state drives (SSDs)), etc.

[0197] Those skilled in the art will appreciate that the embodiments of the present disclosure may be provided as methods, systems, or computer program products. Therefore, the present disclosure may take the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware. Furthermore, the present disclosure may take the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to magnetic disk storage and optical storage, etc.) containing computer-usable program code.

[0198] The present disclosure is described with reference to the flowcharts and / or block diagrams of the methods, apparatus, and computer program products according to the embodiments of the present disclosure. It should be understood that each process and / or box in the flowchart and / or block diagram, as well as the combination of the processes and / or boxes 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 produce a machine, so that the instructions executed by the processor of the computer or other programmable data processing device generate a device for implementing the functions specified in one or more processes in the flowchart and / or one or more boxes in the block diagram.

[0199] 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 a product including an instruction device that implements the functions specified in one or more processes in the flowchart and / or one or more boxes in the block diagram.

[0200] 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, whereby the instructions executed on the computer or other programmable device provide steps for implementing the functions specified in one or more processes in the flowchart and / or one or more boxes in the block diagram.

[0201] Obviously, those skilled in the art may make various changes and modifications to the present disclosure without departing from the spirit and scope of the present disclosure. Thus, if these modifications and variations of the present disclosure fall within the scope of the claims of the present disclosure and their equivalents, the present disclosure is 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: Before sending the signaling to the terminal, the method further 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. The TCI status indicating device according to claim 30, characterized in that: The signaling indicates a first TCI code point, and the first TCI code point maps the multiple groups of TCI states.

32. The TCI status indicating device according to claim 30, 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.

33. The TCI status indicating device according to claim 32, 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.

34. The TCI status indicating device according to claim 33, 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.

35. The TCI status indicating device according to claim 33, characterized in that: The first downlink control information includes multiple first TCI fields, and each first TCI field indicates a second TCI code point.

36. The TCI status indicating device according to claim 32, 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.

37. The TCI status indicating device according to claim 36, characterized in that: Some fields in the second downlink control information indicate the multiple second TCI code points.

38. The TCI status indicating device according to claim 36, characterized in that: A partial field in the second downlink control information indicates the number of the second TCI code points.

39. The TCI status indicating device according to claim 30, 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.

40. The TCI status indicating device according to claim 39, 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.

41. The TCI status indicating device according to claim 39, 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.

42. The TCI status indicator device according to any one of claims 30 to 39, characterized in that: Also includes: A determination unit 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, wherein the offset duration value is configured on the network side or predetermined by the network side and the terminal.

43. The TCI status indicating device according to claim 31, characterized in that: The receiving unit is also 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 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.

44. The TCI status indicating device according to claim 43, 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.

45. A TCI status indication 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, configured to send the signaling to the terminal, the signaling being used to indicate a plurality of groups of TCI states, the number of groups of the plurality of groups of TCI states being a first number, a group of TCI states including at least one TCI state, the first number being used to determine the effective time of the TCI state, the terminal and the radio access network device being used to determine the effective time of the TCI state Communicate according to the TCI status at the effective time.

46. ​​The TCI status indicating device according to claim 45, characterized in that: The signaling indicates a first TCI code point, and the first TCI code point maps the multiple groups of TCI states.

47. The TCI status indicating device according to claim 45, 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.

48. The TCI status indicating device according to claim 47, 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.

49. The TCI status indicating device according to claim 48, 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.

50. The TCI status indicating device according to claim 48, characterized in that: The first downlink control information includes multiple first TCI fields, and each second TCI field indicates a second TCI code point.

51. The TCI status indicating device according to claim 47, 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.

52. The TCI status indicating device according to claim 51, characterized in that: Some fields in the second downlink control information indicate the multiple second TCI code points.

53. The TCI status indicating device according to claim 51, characterized in that: A partial field in the second downlink control information indicates the number of the second TCI code points.

54. The TCI status indicating device according to claim 45, 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.

55. The TCI status indicating device according to claim 45, 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.

56. The TCI status indicating device according to claim 45, 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.

57. The TCI status indicating device according to claim 46, characterized in that: The sending unit is also used to send an activation instruction to the terminal before sending the signaling to the terminal, and 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.

58. The TCI status indicating device according to claim 57, 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.

59. 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.

60. 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.

61. 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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