CN116996998A

CN116996998A - Beam indication method, device, equipment and storage medium

Info

Publication number: CN116996998A
Application number: CN202211490939.1A
Authority: CN
Inventors: 李辉; 高秋彬; 黄秋萍; 骆亚娟; 宋磊
Original assignee: Datang Mobile Communications Equipment Co Ltd
Current assignee: Datang Mobile Communications Equipment Co Ltd
Priority date: 2022-04-29
Filing date: 2022-11-25
Publication date: 2023-11-03

Abstract

The application provides a beam indication method, a device, equipment and a storage medium, wherein the method comprises the following steps: acquiring transmission capability information of a terminal; and sending a first message to the terminal according to the transmission capability information, wherein the first message comprises at least one transmission configuration indication TCI state information, and the first message is used for indicating the terminal to transmit according to the TCI state information. In the application, the network equipment can indicate the transmission mode adopted by the terminal to the terminal through the first message, namely, sTRP transmission or mTRP transmission is adopted, so that the network equipment can accurately indicate the terminal to execute different TRP transmission processes aiming at different TRP scenes, and can realize dynamic switching of sTRP transmission and mTRP transmission, thereby being beneficial to ensuring the scheduling flexibility and system performance of a communication system.

Description

Beam indication method, device, equipment and storage medium

The present application claims priority from chinese patent office, application number 202210469111.1, application name "beam pointing method, apparatus, device and storage medium" filed 29 at 2022, 4, the entire contents of which are incorporated herein by reference.

Technical Field

The present application relates to the field of communications technologies, and in particular, to a beam indication method, apparatus, device, and storage medium.

Background

The NR Rel-17 protocol supports only a single access point TRP (Single Transmission Receiving Point, srp) scenario. The DCI format1_1/1_2 based beam indication signaling is used for both data scheduling (PDSCH scheduling) and beam indication (TCI status indication). But the beam indicated by this signaling cannot be used for PDSCH scheduled by this signaling. For the scene of switching between sTRP and multiple access points TRP (Multi TransmissionReceiving Point, mTRP), the terminal judges whether the currently scheduled PDSCH is sTRP or mTRP according to the number of beams indicated by the network equipment. Since the TCI state indicated by DCI format1_1/1_2 cannot be used for the PDSCH scheduled by the DCI, there is a problem that the number of TCI states indicated by the DCI does not match with the PDSCH scheduled by the DCI using the srrp or the mTRP.

In addition, since the terminal is introduced into the Rel-18 protocol to support the mTRP scene, and the Rel-17 protocol only supports the srrp scene, how to design the corresponding mode configuration scheme and beam indication scheme in order to support the mTRP scene becomes a problem to be solved.

The above information disclosed in the background section is only for enhancement of understanding of the background of the application and therefore it may contain information that does not form the prior art that is already known to a person of ordinary skill in the art.

Disclosure of Invention

The application provides a beam indication method, a beam indication device, beam indication equipment and a storage medium, which are used for solving the problems existing in the prior art.

In a first aspect, the present application provides a beam indication method, applied to a network device, including:

acquiring transmission capability information of a terminal;

and sending a first message to the terminal according to the transmission capability information, wherein the first message comprises at least one transmission configuration indication TCI state information, and the first message is used for indicating the terminal to transmit according to the TCI state information.

In some embodiments, further comprising: the TCI mode information corresponding to the TCI state information is sent to a terminal, the TCI mode information corresponding to the TCI state information is used for indicating that the TCI state information is applied to uplink transmission and/or downlink transmission, and the TCI mode information corresponding to the TCI state information is contained in the first message to be sent or is independent of the first message to be sent; the TCI mode information comprises a first TCI mode and/or a second TCI mode, and the TCI state information used by uplink transmission is the same as the TCI state information used by downlink transmission in the first TCI mode; in the second TCI mode, the TCI state information used for uplink transmission is different from the TCI state information used for downlink transmission.

In some embodiments, the TCI mode information corresponding to the TCI state information is sent independent of the first message, including: using one signaling or at least two signaling to send TCI mode information corresponding to the TCI state information to a terminal; wherein each of the at least two signaling is associated with a control resource set CORESET or CORESET group, the CORESET group comprising coreets having the same identity.

In some embodiments, sending, to the terminal, TCI mode information corresponding to the TCI state information using one signaling or using at least two signaling, includes: sending one or at least two second messages to the terminal; the second message includes one or more TCI status fields and TCI mode information corresponding to each TCI status field, or the second message includes one or more TCI status fields, and each TCI status field in the second message is preset to correspond to one type of TCI mode information.

In some embodiments, the TCI mode information corresponding to the TCI state information is included in the first message and sent, including: the first message includes a TCI mode information field, where the TCI mode information field is used to indicate the TCI mode information; or the first message includes a TCI field, and a part of bits in the TCI field are used to indicate the TCI mode information.

In some embodiments, the first message is configured to instruct a terminal to transmit according to the TCI state information, including: the first message is used for indicating the terminal to perform single access point sTRP transmission or multi-access point mTRP transmission according to the at least one TCI state information, and the at least one TCI state information is used for indicating to perform uplink transmission and/or downlink transmission.

In some embodiments, the first message is configured to instruct the terminal to perform single access point srrp transmission or multiple access point mTRP transmission according to the at least one TCI status information, including: when the number of the TCI state information used for uplink transmission/downlink transmission is one in the TCI state information included in the first message, the first message is used for indicating the terminal to perform the srp transmission or the mTRP transmission according to the TCI state information which takes effect after the previous indication, and after the TCI state information in the first message takes effect, the next srp transmission is performed according to the TCI state information in the first message; or when the number of the TCI state information used for uplink transmission/downlink transmission in the TCI state information included in the first message is at least two, the first message is used for indicating the terminal to perform mTRP transmission according to the TCI state information in the first message.

In some embodiments, the first message is configured to instruct the terminal to perform an srp transmission or a mTRP transmission according to TCI status information that takes effect after the previous instruction, and includes: if the number of the TCI state information used for uplink transmission/downlink transmission in the TCI state information which takes effect after the previous indication is one, the first message is used for indicating the terminal to perform sTRP transmission according to the TCI state information which takes effect after the previous indication; and if the number of the TCI state information for uplink transmission/downlink transmission in the TCI state information which takes effect after the previous indication is at least two, the first message is used for indicating the terminal to perform mTRP transmission according to the TCI state information which takes effect after the previous indication.

In some embodiments, further comprising: transmitting TRP indication domain information to a terminal, the TRP indication domain information being used for indicating to perform an srp transmission or a mTRP transmission, the TRP indication domain information being transmitted in the first message or being transmitted independently of the first message; the first message is used for indicating the terminal to perform sTRP transmission or mTRP transmission according to the TRP indication domain information and the at least one TCI state information.

In some embodiments, the first message is configured to instruct the terminal to perform an srp transmission or a mTRP transmission according to the TRP indication domain information and the at least one TCI status information, and includes: the first message is used for indicating the terminal to perform sTRP transmission or mTRP transmission according to the TRP indication domain information and TCI state information which takes effect after the previous indication, and performing the next sTRP transmission or the next mTRP transmission according to the TCI state information in the first message after the TCI state information in the first message takes effect; or the first message is used for indicating the terminal to perform sTRP transmission or mTRP transmission according to the TRP indication domain information and at least one TCI state information in the first message.

In some embodiments, the first message is configured to instruct the terminal to perform an srp transmission or a mTRP transmission according to the TRP indication domain information and TCI status information validated after the previous indication, and includes: when the TRP indication domain information indicates mTRP transmission, if the number of TCI state information for uplink transmission/downlink transmission in TCI state information effective after the previous indication is one, the first message is used for indicating the terminal to perform sTRP transmission according to the TCI state information effective after the previous indication; or when the TRP indication domain information indicates that mTRP transmission is performed, if the number of TCI state information used for uplink transmission/downlink transmission in the TCI state information effective after the previous indication is at least two, the first message is used for indicating the terminal to perform mTRP transmission according to the TCI state information effective after the previous indication; or when the TRP indication domain information indicates to perform the TRP transmission, if the number of TCI state information used for uplink transmission/downlink transmission in the TCI state information effective after the previous indication is one, the first message is used for indicating the terminal to perform the TRP transmission according to the TCI state information effective after the previous indication; or when the TRP indication domain information indicates to perform the srp transmission, if the number of the TCI state information for uplink transmission/downlink transmission in the TCI state information effective after the previous indication is at least two, the TRP indication domain information is further used for indicating the terminal to select one target TCI state information determined to be currently used from the at least two TCI state information for uplink transmission/downlink transmission, and perform the srp transmission through the target TCI state information.

In some embodiments, the first message is configured to instruct a terminal to perform an srp transmission or a mTRP transmission according to the TRP indication domain information and at least one TCI status information in the first message, and includes: when the TRP indication domain information indicates mTRP transmission, the first message is used for indicating a terminal to perform mTRP transmission according to TCI state information in the first message; or when the TRP indication domain information indicates to perform the TRP transmission, if the number of the TCI state information for uplink transmission/downlink transmission in the TCI state information included in the first message is one, the first message is used for indicating the terminal to perform the TRP transmission according to the TCI state information in the first message; or when the TRP indication domain information indicates to perform the srp transmission, if the number of the TCI state information for uplink transmission/downlink transmission in the TCI state information included in the first message is at least two, the TRP indication domain information is further used for indicating the terminal to select one target TCI state information determined to be currently used from the at least two TCI state information for uplink transmission/downlink transmission, and perform the srp transmission through the target TCI state information.

In some embodiments, in a case where the first message is used to instruct the terminal to perform the srp transmission or the mTRP transmission according to the TRP indication domain information and at least one TCI state information in the first message, if a time slot interval between the first time and the second time is less than or equal to a threshold value, the srp transmission or the mTRP transmission indicated by the first message is performed according to one or more of the following TCI state information: the network device sending one or more TCI status information employed by the first message; one or more TCI status information in an active state at the start of the srp transmission or mTRP transmission indicated by the first message; TCI state information corresponding to a predefined code point among TCI state information indicating activation by the network device; the first time is the time when the terminal receives the first message, and the second time is the time when the terminal receives the sTRP transmission or the mTRP transmission indicated by the first message.

In some embodiments, the number of TRP indication field information is at least two, each TRP indication field information corresponding to a different channel and/or reference signal.

In some embodiments, further comprising: and receiving an acknowledgement message for the first message, wherein the acknowledgement message is sent by the terminal after receiving the first message, and the acknowledgement message is used for determining the effective time of the TCI state information indicated by the first message.

In some embodiments, acquiring transmission capability information of a terminal includes: and receiving a third message sent by the terminal, wherein the third message comprises the transmission capability information.

In a second aspect, the present application provides a beam indicating method, applied to a terminal, including:

receiving a first message from network equipment, wherein the first message comprises at least one transmission configuration indication TCI state information, and the first message is sent by the network equipment according to the transmission capability information of a terminal;

and transmitting according to the TCI state information.

In some embodiments, further comprising: acquiring TCI mode information corresponding to the TCI state information from the first message, or receiving TCI mode information corresponding to the TCI state information which is sent by the network equipment independently of the first message, wherein the TCI mode information corresponding to the TCI state information is used for indicating that the TCI state information is applied to uplink transmission and/or downlink transmission; the TCI mode information comprises a first TCI mode and/or a second TCI mode, and the TCI state information used by uplink transmission is the same as the TCI state information used by downlink transmission in the first TCI mode; in the second TCI mode, the TCI state information used for uplink transmission is different from the TCI state information used for downlink transmission.

In some embodiments, receiving TCI mode information corresponding to the TCI state information from the network device includes: receiving TCI mode information corresponding to the TCI state information sent by the network equipment by using one signaling or at least two signaling; wherein each of the at least two signaling is associated with a control resource set CORESET or CORESET group, the CORESET group comprising coreets having the same identity.

In some embodiments, receiving TCI mode information corresponding to the TCI state information sent by the network device using one signaling or using at least two signaling includes: receiving one or at least two second messages sent by the network equipment; the second message includes one or more TCI status fields and TCI mode information corresponding to each TCI status field, or the second message includes one or more TCI status fields, and each TCI status field in the second message is preset to correspond to one type of TCI mode information.

In some embodiments, the first message includes a TCI mode information field, where the TCI mode information field is used to indicate the TCI mode information; or the first message includes a TCI field, and a part of bits in the TCI field are used to indicate the TCI mode information.

In some embodiments, transmitting according to the TCI state information includes: and carrying out single access point sTRP transmission or multi-access point mTRP transmission according to the at least one TCI state information, wherein the at least one TCI state information is used for indicating to carry out uplink transmission and/or downlink transmission.

In some embodiments, single access point srrp transmission or multiple access point mTRP transmission is performed according to the at least one TCI state information, including: when the number of TCI state information for uplink transmission/downlink transmission is one in TCI state information included in the first message, performing sTRP transmission or mTRP transmission according to TCI state information which takes effect after the previous indication, and performing next sTRP transmission according to TCI state information in the first message after the TCI state information in the first message takes effect; or when the number of the TCI state information for uplink transmission/downlink transmission in the TCI state information included in the first message is at least two, mTRP transmission is performed according to the TCI state information in the first message.

In some embodiments, the srp transmission or the mTRP transmission is performed according to TCI status information that is validated after the previous indication, including: if the number of TCI state information for uplink transmission/downlink transmission in TCI state information which takes effect after the previous indication is one, sTRP transmission is carried out according to the TCI state information which takes effect after the previous indication; and if the number of the TCI state information for uplink transmission/downlink transmission in the TCI state information which takes effect after the previous indication is at least two, mTRP transmission is carried out according to the TCI state information which takes effect after the previous indication.

In some embodiments, further comprising: acquiring TRP indication domain information from the first message, or receiving TRP indication domain information which is sent by the network equipment independently of the first message and is used for indicating to perform sTRP transmission or mTRP transmission; transmitting according to the TCI state information, including: and carrying out sTRP transmission or mTRP transmission according to the TRP indication domain information and the at least one TCI state information.

In some embodiments, the signaling of the TRP or the mTRP based on the TRP indication field information and the at least one TCI status information comprises: carrying out sTRP transmission or mTRP transmission according to the TRP indication domain information and TCI state information which takes effect after the previous indication, and carrying out the next sTRP transmission or the next mTRP transmission according to the TCI state information in the first message after the TCI state information in the first message takes effect; or, performing an sTRP transmission or a mTRP transmission according to the TRP indication domain information and at least one TCI state information in the first message.

In some embodiments, the transmitting the srrp or the mTRP according to the TRP indication domain information and the TCI status information validated after the previous indication includes: when the TRP indication domain information indicates mTRP transmission, if the number of TCI state information for uplink transmission/downlink transmission in TCI state information effective after the previous indication is one, sTRP transmission is performed according to the TCI state information effective after the previous indication; or when the TRP indication domain information indicates mTRP transmission, if the number of TCI state information for uplink transmission/downlink transmission in TCI state information effective after the previous indication is at least two, mTRP transmission is performed according to TCI state information effective after the previous indication; or when the TRP indication domain information indicates to perform sTRP transmission, if the number of TCI state information for uplink transmission/downlink transmission in TCI state information effective after the previous indication is one, performing sTRP transmission according to TCI state information effective after the previous indication; or when the TRP indication domain information indicates that the srp transmission is performed, if the number of TCI state information for uplink/downlink transmission is at least two in the TCI state information effective after the previous indication, selecting one target TCI state information determined to be currently used from the at least two TCI state information for uplink/downlink transmission, and performing the srp transmission through the target TCI state information.

In some embodiments, the signaling of the TRP or the mTRP according to the TRP indication field information and the at least one TCI status information in the first message comprises: when the TRP indication domain information indicates mTRP transmission, mTRP transmission is performed according to TCI state information in the first message; or when the TRP indication domain information indicates to perform the srp transmission, if the number of the TCI state information for uplink/downlink transmission is one in the TCI state information included in the first message, performing the srp transmission according to the TCI state information in the first message; or when the TRP indication domain information indicates that the srp transmission is performed, if the number of the TCI state information for uplink transmission/downlink transmission in the TCI state information included in the first message is at least two, selecting one target TCI state information determined to be currently used from the at least two TCI state information for uplink transmission/downlink transmission, and performing the srp transmission through the target TCI state information.

In some embodiments, further comprising: after receiving the first message, sending an acknowledgement message for the first message to the network device, wherein the acknowledgement message is used for determining the effective time of the TCI state information indicated by the first message.

In some embodiments, further comprising: and sending a third message to the network equipment, wherein the third message comprises transmission capability information of the terminal.

In a third aspect, the present application provides a beam pointing apparatus, applied to a network device, including:

the acquisition module is used for acquiring the transmission capability information of the terminal;

and the sending module is used for sending a first message to the terminal according to the transmission capability information, wherein the first message comprises at least one transmission configuration indication TCI state information, and the first message is used for indicating the terminal to transmit according to the TCI state information.

In a fourth aspect, the present application provides a beam pointing apparatus, applied to a terminal, including:

a receiving module, configured to receive a first message from a network device, where the first message includes at least one transmission configuration indication TCI status information, and the first message is sent by the network device according to transmission capability information of a terminal;

And the transmission module is used for transmitting according to the TCI state information.

In a fifth aspect, the present application provides a network device comprising a memory, a transceiver, and a processor:

a memory for storing a computer program; a transceiver for transceiving data under control of the processor; a processor for reading the computer program in the memory and performing the following operations:

acquiring transmission capability information of a terminal;

In a sixth aspect, the present application provides a terminal comprising a memory, a transceiver, and a processor:

And transmitting according to the TCI state information.

In a seventh aspect, the present application provides a computer readable storage medium having stored therein computer executable instructions which when executed by a processor are adapted to implement the beam pointing method described above.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the disclosure and together with the description, serve to explain the principles of the disclosure.

FIG. 1 is a signaling diagram of the prior art;

fig. 2 is a schematic diagram of a beam indication method according to an embodiment of the present application;

fig. 3 is a schematic diagram of a beam pointing apparatus according to an embodiment of the present application;

fig. 4 is a schematic diagram of a beam pointing apparatus according to an embodiment of the present application;

fig. 5 is a schematic structural diagram of a network device according to an embodiment of the present application;

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

Specific embodiments of the present disclosure have been shown by way of the above drawings and will be described in more detail below. These drawings and the written description are not intended to limit the scope of the disclosed concepts in any way, but rather to illustrate the disclosed concepts to those skilled in the art by reference to specific embodiments.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present application more apparent, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments of the present application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.

The terminology used in the embodiments of the application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used in this embodiment of the application, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.

It should be understood that the term "and/or" as used herein is merely one relationship describing the association of the associated objects, meaning that there may be three relationships, e.g., a and/or B, may represent: a exists alone, A and B exist together, and B exists alone. In addition, the character "/" herein generally indicates that the front-rear association object is an "or" relationship.

The words "if", as used herein, may be interpreted as "at … …" or "at … …" or "in response to a determination" or "in response to a detection", depending on the context. Similarly, the phrase "if determined" or "if detected (stated condition or event)" may be interpreted as "when determined" or "in response to determination" or "when detected (stated condition or event)" or "in response to detection (stated condition or event), depending on the context.

It should also be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a product or system that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such product or system. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a commodity or system comprising such elements.

In an NR (New Radio, new air interface) system, a downlink channel includes a PDSCH (Physical Downlink Shared Channel, downlink data channel), a PDCCH (Physical Downlink Control Channel, downlink control channel), an uplink channel includes a PUSCH (Physical Uplink Shared Channel, uplink data channel), and a PUCCH (Physical Uplink Control Channel, uplink control channel). For high frequency transmission (FR 2 band in NR), due to the limited transmission range, the uplink and downlink channels are typically beamformed and then transmitted to enhance coverage. The direction of the shaped beam can be determined by beam scanning of uplink and downlink reference signals, for example, CSI-RS (Channel State Information Reference Signal, channel state information measurement reference signals) or SRS (Sounding Reference Signal, channel sounding reference signals) in different directions are used for beam scanning, and the direction of the reference signal with the best beam quality is selected for uplink or downlink transmission. The beam directions of the different channels are determined and the beam at the time of channel transmission, i.e. beam indication, needs to be indicated using signaling. In the NR Rel-15/16 protocol, for a PUCCH channel, a network device is semi-statically configured to multiple beam directions of a terminal through higher layer signaling, and instructs to activate one of them through a MAC-CE (Media Access Control-Control Element). For PUSCH, the uplink beam selected by the network device is indirectly indicated by the spatialnfo of the SRS resource indicated by the SRI (map_send_routing_information) field in the dynamic signaling DCI (Downlink Control Information ). For the PDCCH channel, the network device configures a plurality of TCI states (TCI state information) for each control resource set CORESET through higher layer signaling, and activates one of them through MAC-CE indication. For PDSCH channels, the network device indicates a TCI status information through the TCI field in DCI signaling, indicating the beam direction of the channel.

Different channels use different beam indication signaling and each channel is beam indicated independently. Such that different channels may be transmitted using respectively different beams. An important scenario in practical applications is that multiple channels use the same beam direction. For example, the same beam direction transmission is used between the PDCCH for resource scheduling and the PDSCH for transmitting user data; the same beam direction is also used for the uplink control channel PUCCH and the uplink data channel PUSCH. When beam reciprocity exists, the uplink and downlink channels will also use the same beam direction. At this time, the current way of independent beam indication increases the complexity of the system and the signaling indication overhead.

To overcome the above problems, in the NR Rel-17 protocol, a method of indicating a plurality of channel beams using one beam indication signaling is introduced, which activates a set of TCI state information through a MAC-CE and then indicates one of the activated TCI state information using DCI. When the uplink and downlink channels are reciprocal, the beam indicated by the beam indication signaling can be used for both the uplink channel and the downlink channel, and is configured to be in a joint TCI mode (joint TCI mode); when MPE problem due to human body shielding occurs or the terminal needs to switch the uplink beam, the uplink channel will use a different beam from the downlink channel, so that the beam indication signaling needs to indicate the uplink channel beam and the downlink channel beam respectively, and is configured into an independent uplink/downlink TCI mode (separate DL/UL TCI mode).

The NR Rel-17 protocol supports only a single access point TRP (sTRP) scenario. The DCI format 1_1/1_2 based beam indication signaling is used for both data scheduling (PDSCH scheduling) and beam indication (TCI status information indication). But the beam indicated by this signaling cannot be used for PDSCH scheduled by this signaling. For the scene of switching between sTRP and multiple access points TRP (mTRP), the terminal judges whether the currently scheduled PDSCH is sTRP or mTRP according to the number of beams indicated by the network equipment. Since the TCI status information indicated by DCI format 1_1/1_2 cannot be used for the PDSCH scheduled by the DCI, there is a problem that the number of the TCI status information indicated by the DCI does not match with the PDSCH scheduled by the DCI transmitted by the srrp or the mTRP.

For example, fig. 1 is a signaling diagram in the prior art, as shown in fig. 1, in which 2 TCI status information indicated by the first DCI needs to be validated after ACK/NACK, so that the second DCI wants to indicate the srp transmission, but 2 TCI status information is validated after the previous indication. The problem of mismatch causes that the network device cannot update the transmission mode of the target PDSCH in time, which causes a larger delay and increases the complexity of the network device.

The technical scheme provided by the application aims to solve the technical problems in the prior art.

The application provides a beam indication method, which can indicate transmission modes of different TRP scenes to a terminal through static or dynamic mode indication information and beam indication information, thereby realizing mode indication of TRP levels in a multi-TRP scene. By the scheme of the application, different TRPs can be flexibly realized to adopt different transmission modes, and the scheduling flexibility and the system performance are ensured.

It will be appreciated that the processing steps of the beam pointing method of the present application may be implemented by a terminal or a network device.

The network device may be a base station, specifically, a base station (Base Transceiver Station, BTS) and/or a base station controller in global mobile communications (Global System of Mobile communication, GSM) or code division multiple access (Code Division Multiple Access, CDMA), a base station (NodeB, NB) and/or a radio network controller (Radio Network Controller, RNC) in wideband code division multiple access (Wideband Code Division Multiple Access, WCDMA), an evolved base station (Evolutional Node B, eNB or eNodeB) in long term evolution (Long Term Evolution, LTE), a relay station or an access point, or a base station (gNB) in a 5G network, a base station in a future 6G network, or the like, which is not limited herein.

The terminal may be a wireless terminal or a wired terminal. A wireless terminal may be a device that provides voice and/or other traffic data connectivity to a user, a handheld device with wireless connectivity, or other processing device connected to a wireless modem. The wireless terminal may communicate with one or more core network devices via a radio access network (Radio Access Network, RAN for short), which may be mobile terminals such as mobile phones (or "cellular" phones) and computers with mobile terminals, for example, portable, pocket, hand-held, computer-built-in or vehicle-mounted mobile devices that exchange voice and/or data with the radio access network. For another example, the wireless terminal may be a personal communication service (Personal Communication Service, abbreviated PCS) phone, a cordless phone, a session initiation protocol (Session Initiation Protocol, abbreviated SIP) phone, a wireless local loop (Wireless Local Loop, abbreviated WLL) station, a personal digital assistant (Personal Digital Assistant, abbreviated PDA) or the like. A wireless Terminal may also be referred to as a system, subscriber Unit (Subscriber Unit), subscriber Station (Subscriber Station), mobile Station (Mobile Station), mobile Station (Mobile), remote Station (Remote Station), remote Terminal (Remote Terminal), access Terminal (Access Terminal), user Terminal (User Terminal), user Agent (User Agent), user equipment (User Device or User Equipment), without limitation. Optionally, the terminal may also be a smart watch, a tablet computer, or other devices.

The following describes the technical scheme of the present application and how the technical scheme of the present application solves the above technical problems in detail with specific embodiments. The following embodiments may be combined with each other, and the same or similar concepts or processes may not be described in detail in some embodiments. Embodiments of the present application will be described below with reference to the accompanying drawings.

In some embodiments, a beam pointing method is provided.

Fig. 2 is a schematic diagram of a beam indication method according to an embodiment of the present application, as shown in fig. 2, the method mainly includes the following steps:

s210, the network equipment acquires transmission capability information of a terminal;

the transmission capability information may refer to TRP transmission capability information supported by the terminal, for example, whether the terminal supports mTRP common beam transmission.

Optionally, the network device may directly obtain the support capability information of the terminal corresponding to the mTRP transmission. Alternatively, the network device may obtain the standard version supported by the terminal, so as to determine whether the terminal supports mTRP transmission, for example, if the network device determines that the terminal belongs to the terminal of the standard version rel-18, it may determine that the terminal supports mTRP transmission.

Alternatively, the terminal may communicate with the network device and send the transmission capability information of the terminal itself to the network device. For example, the terminal may send a third message including its own transmission capability information to the network device, and after receiving the third message sent by the terminal, the network device directly determines that the terminal may support mTRP common beam transmission according to the third message, or determines that the terminal belongs to a terminal supporting rel-18, thereby further determining that the terminal may support mTRP common beam transmission.

Alternatively, the network device may acquire the transmission capability information of the terminal in other manners, for example, after acquiring the relevant identification information of the terminal, the network device performs a query according to the identification information, so as to acquire the transmission capability information of the terminal.

S220, the network equipment sends a first message to the terminal according to the transmission capability information, wherein the first message comprises at least one transmission configuration indication TCI state information, and the first message is used for indicating the terminal to transmit according to the TCI state information. Accordingly, the terminal receives a first message from the network device.

The network device may send at least one TCI status information to the terminal via the first message, thereby instructing the terminal to transmit according to the at least one TCI status information.

Alternatively, the first message may specifically be a DCI (Downlink Control Information ) message.

S230, the terminal transmits according to the TCI state information.

After receiving the first message from the network device, the terminal transmits according to the TCI state information indicated by the first message, where the transmission mode includes srrp transmission or mTRP transmission.

For example, if the first message includes 1 TCI status information, the terminal may perform the srp transmission according to the indication of the first message; if the first message contains 2 pieces of TCI state information, the terminal can perform sTRP transmission or mTRP transmission according to the indication of the first message; if the first message contains 3 pieces of TCI state information, the terminal can perform mTRP transmission according to the indication of the first message; if the first message contains 4 pieces of TCI status information, the terminal may perform mTRP transmission according to the indication of the first message.

Therefore, based on the technical scheme provided by the embodiment, the network device can indicate the transmission mode adopted by the terminal, that is, adopts the sTRP transmission or the mTRP transmission, to the terminal through the first message, so that the network device can accurately indicate the terminal to execute different TRP transmission processes according to different TRP scenes, and can realize the dynamic switching of the sTRP transmission and the mTRP transmission, thereby being beneficial to ensuring the scheduling flexibility and the system performance of the communication system.

In some embodiments, the method further comprises: the network equipment sends TCI mode information corresponding to TCI state information to the terminal, wherein the TCI mode information corresponding to the TCI state information is used for indicating that the TCI state information is applied to uplink transmission and/or downlink transmission, and the TCI mode information corresponding to the TCI state information is contained in a first message to be sent or is independent of the first message to be sent; correspondingly, the terminal receives TCI mode information corresponding to TCI state information from the network equipment, and transmits according to the TCI mode information.

Alternatively, the TCI mode information corresponding to the TCI state information may be sent in a first message, for example, when the first message is a DCI message, the network device sends the TCI mode information to the terminal through the DCI message.

Alternatively, the TCI mode information corresponding to the TCI state information may be sent independently of the first message, for example, the network device sends the TCI mode information to the terminal through the MAC-CE.

Optionally, the TCI mode information includes a first TCI mode and/or a second TCI mode, where the first TCI mode may be, for example, a joint TCI mode, and in the first TCI mode, TCI state information used for uplink transmission is the same as TCI state information used for downlink transmission, that is, one TCI state information may be used for uplink transmission and downlink transmission of the same TRP; the second TCI mode may be, for example, an independent uplink/downlink TCI mode (abbreviated as independent TCI mode), in which TCI state information used for uplink transmission is different from TCI state information used for downlink transmission, i.e., one TCI state information is used for uplink transmission of only one TRP or for downlink transmission of only one TRP.

The TCI mode information corresponding to the TCI state information is explained independently of the first message transmission.

In some embodiments, TCI mode information corresponding to TCI state information is sent independent of the first message, including: the network equipment uses at least two signaling to send TCI mode information corresponding to the TCI state information to the terminal; wherein each of the at least two signaling is associated with a control resource set CORESET or CORESET group, the CORESET group comprising coreets having the same identity.

Optionally, the network device sends TCI mode information corresponding to the TCI state information to the terminal using at least two signaling, including: the network equipment sends at least two second messages to the terminal; the second message includes one or more TCI status fields and TCI mode information corresponding to each TCI status field, or the second message includes one or more TCI status fields, and each TCI status field in the second message is preset to correspond to one type of TCI mode information.

Specifically, the network device configures two coresetpoolndexs, denoted coresetpoolndex 0 and coresetpoolndex 1, for the terminal through the first message, where the configuration corresponds to the terminal and the network device may use mTRP (such as TRP0 and TRP 1) for transmission, and each TRP corresponds to one coresetpoolndex.

Assume that network device configuration CORESETPoolIndex0 includes CORESET#0, CORESET#1 and CORESET#2, and configuration CORESETPoolIndex1 includes CORESET#3 and CORESET#4. Accordingly, PDCCHs and their scheduled PDSCHs configured in coreset#0, coreset#1, and coreset#2 will be transmitted using TRP0, and PDCCHs and their scheduled PDSCHs configured in coreset#3 and coreset#4 will be transmitted using TRP 1.

In addition, the network device configures a corresponding beam indication pattern for coresetpoolndex. For example, the network device configures a joint TCI mode for CORESETPoolIndex0 and a separate TCI mode for CORESETPoolIndex 1. The configuration may be to configure the association of each coresetpoolndex with the beam indication pattern; it is also possible to configure the coresetpoillindex and its corresponding beam pointing mode in the configuration of each CORESET.

Thus, based on the above configuration, TRP0 corresponding to coresetpoolndex 0 adopts the joint TCI mode, i.e., the network device instructs the terminal to use one TCI status information (e.g., any one of coreset#0, coreset#1, and coreset#2) for uplink and downlink transmission.

In addition, TRP1 corresponding to coreetpolindex 1 adopts an independent TCI mode, i.e., the network device instructs the terminal to use one TCI state information (e.g., any one of CORESET #3 and CORESET # 4) for uplink or downlink transmission, or instructs the terminal to use two TCI state information (e.g., CORESET #3 and CORESET # 4) for uplink and downlink transmission, respectively.

In some embodiments, TCI mode information corresponding to TCI state information is sent independent of the first message, including: the network device uses a signaling to send TCI mode information corresponding to the TCI state information to the terminal.

Optionally, the network device sends TCI mode information corresponding to the TCI state information to the terminal by using a signaling, including: the network equipment sends a second message to the terminal; the second message includes one or more TCI status fields and TCI mode information corresponding to each TCI status field, or the second message includes one or more TCI status fields, and each TCI status field in the second message is preset to correspond to one type of TCI mode information.

Alternatively, the second message may specifically be MAC-CE signaling.

Specifically, the network device may configure a joint TCI mode, an independent TCI mode, or a hybrid (i.e., joint tci+independent TCI) mode for the terminal through RRC signaling.

(1) If the RRC is configured in the joint TCI mode, the code point (codebook) of the TCI field in the beam indication signaling DCI format 1_1/1_2 (i.e., the first message) may correspond to 1 TCI state information or 2 TCI state information. If the TCI state information corresponds to the TCI state information, the network equipment indicates the terminal to perform sTRP transmission; and if the corresponding 2 TCI state information is obtained, indicating that the network equipment instructs the terminal to carry out mTRP transmission. Therefore, the terminal can determine to perform the srp transmission or the mTRP transmission through the amount of the TCI state information.

(2) If the RRC is configured in the independent TCI mode, the codepoint of the TCI domain may correspond to 1 to 4 TCI state information. Wherein, for the srpi scene, 1 TCI state information (independent uplink transmission or independent downlink transmission corresponding to one TRP) or 2 TCI state information (independent uplink transmission and independent downlink transmission corresponding to the same TRP, respectively) may be indicated. For the mTRP scenario, 2 TCI state information (corresponding to independent uplink or independent downlink of two TRPs, respectively), 3 TCI state information (corresponding to independent uplink or independent downlink of one TRP, independent uplink and independent downlink of another TRP, respectively), or 4 TCI state information (corresponding to independent uplink and independent downlink of two TRPs, respectively) may be indicated. In order to distinguish the TCI state information corresponding to each TRP when 2/3 TCI state information is indicated, one way is to reserve 4 TCI state fields in the MAC-CE signaling activating the TCI state information, the system predefines that the first two TCI state fields are a group, which respectively represent an independent uplink TCI state and an independent downlink TCI state of one TRP; the latter two TCI state fields are a group that represent the independent uplink TCI state and the independent downlink TCI state of another TRP, respectively. The TCI state information corresponding to a code point is given in table 1 below:

TABLE 1

Wherein NULL indicates that this TCI state field is empty, i.e., TCI state information is not indicated. If the terminal receives the code point indicated by DCI format 1_1/1_2, it uses the uplink beam corresponding to tci_state1 to transmit information to one TRP, uses the uplink beam corresponding to tci_state12 to transmit information to another TRP, and uses the beam corresponding to tci_state8 to receive information from the TRP. Therefore, for the TCI state information corresponding to each code point, the terminal can accurately determine the corresponding relation among different TRPs, different TCI state information and different TCI mode information, so that information transmission can be accurately performed according to the indication of the network equipment.

(3) If the RRC is configured in the hybrid mode, the codepoint of the TCI field may correspond to 1 to 3 TCI state information. For the srpi scenario, 1 TCI state information (independent uplink transmission or independent downlink transmission or combined uplink and downlink transmission corresponding to one TRP) or 2 TCI state information (independent uplink TCI and independent downlink TCI corresponding to one TRP, respectively) may be indicated. For the mTRP scenario, 2 TCI status information (corresponding to joint uplink and downlink transmission of one TRP and independent uplink or independent downlink transmission of another TRP, respectively) may be indicated, and 3 TCI status information (corresponding to independent uplink and independent downlink transmission of one TRP and joint uplink and downlink of another TRP, respectively) may be indicated. In order to ensure that the terminal can correctly understand the TCI modes corresponding to the multiple TCI state information, one implementation manner is that in the MAC-CE signaling for activating the TCI state information, the TCI mode information corresponding to each TCI state information is indicated, for example, the TCI state information corresponding to one code point is expressed as the following table 2:

TABLE 2

TCI State Domain-1	TCI State Domain-2
		TCI_state1	TCI_state12
Independent downlink TCI	Federated TCI

The mode indication of the TCI state field of the third behavior indicates that tci_state1 is TCI state information applied to independent downlink transmission, and tci_state12 is TCI state applied to combined uplink and downlink transmission. The above manner may enable dynamic mode indication through MAC-CE.

In addition, another implementation manner is that 3 TCI state fields are fixedly contained in the MAC-CE signaling of the system predefined active TCI state information, and the first TCI state field corresponds to a joint TCI mode, and the second TCI state field and the third TCI state field correspond to an independent uplink mode and an independent downlink mode respectively. For example, the TCI state corresponding to a code point is shown in table 3 below:

TABLE 3 Table 3

For one TRP, the beam corresponding to tci_state1 may be used for uplink and downlink transmission, and for another TRP, the beam corresponding to tci_state12 may be used for downlink transmission. By means of the above static indication, it is possible to help to save signaling overhead.

The TCI mode information corresponding to the TCI state information is contained in the first message and transmitted, and explanation will be given below.

In some embodiments, TCI mode information corresponding to TCI state information is included in a first message and sent, including: the first message includes a TCI mode information field for indicating TCI mode information, or the first message includes a TCI field for indicating TCI mode information with a portion of bits in the TCI field.

Specifically, one implementation manner of this embodiment is to add a TCI mode information field to the first message (i.e., DCI signaling). For example, the DCI format 1_1/1_2 includes the information fields shown in the following table 4:

TABLE 4 Table 4

TCI mode information field	TCI domain
		0	001

The value of '0' in the TCI mode information field indicates that no TCI associated with the TCI mode is included in the TCI state information corresponding to the TCI code point, that is, the TCI states in the MAC-CE corresponding to 001 are all independent TCI state information.

Further, if the TCI mode information field takes a value of '1', it indicates that TCI state information of the combined TCI mode exists in the TCI state information corresponding to the TCI code point, and the combined TCI state is the first TCI state information corresponding to the code point according to system predefining.

Further, another implementation of this embodiment is a TCI mode information field including a plurality of bits, each corresponding to a TCI field of one code point in a MAC-CE. For example, for the following code points in MAC-CE, 3 bits may be used in the TCI mode information field in DCI signaling, corresponding to the following three TCI state fields, respectively. Each bit in the DCI signaling indicates whether the TCI mode of each of the following status domains is joint or independent TCI, as shown in table 5 below:

TABLE 5

TCI State Domain-1	TCI State Domain-2	TCI State Domain-3
			TCI_state1	NULL	TCI_state12

Furthermore, another implementation of this embodiment is to use the first n bits in the TCI field to indicate TCI mode information in DCI signaling, with the code points of the remaining bits corresponding to the code points in the active MAC-CE. For example, DCI format1_1/1_2 includes the following information fields shown in table 6:

TABLE 6

TCI domain
	0001

Wherein the first bit ('0') is used to indicate TCI mode information and the remaining bits ('001') are used to indicate code points.

In addition, another implementation of this embodiment is to configure a terminal with a joint TCI mode, an independent TCI mode, or a mixed mode using RRC signaling. Meanwhile, mode indication of different TCI domains in MAC-CE signaling is configured using the same or different RRC signaling. For example, when the RRC configuration mode is a hybrid mode, three domains corresponding to each code point in the MAC-CE are configured to be the joint TCI, the independent uplink TCI and the independent downlink TCI, respectively, in sequence using the same RRC signaling. The RRC signaling may also be used to configure whether the TCI mode information field exists in the DCI signaling or to use N bits of the TCI field for mode indication.

Based on the technical solutions of the above embodiments, the network device may configure different TCI modes for different TRPs through a static or dynamic mode indication manner, and for different TRP scenarios, the network device may accurately instruct the terminal to execute different TRP transmission processes, so as to implement different mode configurations of different TRP levels, thereby helping to ensure scheduling flexibility and system performance of the communication system.

In some embodiments, the first message is configured to instruct the terminal to transmit according to TCI status information, including: the first message is used for indicating the terminal to perform single access point sTRP transmission or multi-access point mTRP transmission according to at least one TCI state information, and the at least one TCI state information is used for indicating to perform uplink transmission and/or downlink transmission. It may be appreciated that after receiving the first message sent by the network device, the terminal determines to perform the srp transmission or the mTRP transmission according to the indication of the first message, and determines whether the used TCI state information is specifically used for uplink transmission or downlink transmission.

Optionally, the first message is configured to instruct the terminal to perform single access point srrp transmission or multiple access point mTRP transmission according to at least one TCI state information, including: when the number of the TCI state information used for uplink transmission/downlink transmission is one in the TCI state information included in the first message, the first message is used for indicating the terminal to perform the srp transmission or the mTRP transmission according to the TCI state information which takes effect after the previous indication, and after the TCI state information in the first message takes effect, the next srp transmission is performed according to the TCI state information in the first message. When the number of TCI status information used for uplink/downlink transmission is one, the number of TCI status information that takes effect after the previous indication may be one or more, and therefore, the terminal may perform the srrp transmission or the mTRP transmission according to the TCI status information that takes effect after the previous indication. And after the TCI state information in the first message is validated, the terminal performs the srp transmission at the next transmission because the number of validated TCI state information is only one.

Specifically, for the case that the number of TCI status information of uplink transmission/downlink transmission is one, it is described that the transmission mode configured by the network device for the terminal is the srp transmission, and in Rel-17, since the TCI status information indicated by the srp transmission process needs to be used after determining to take effect, in this embodiment, the terminal may perform the srp transmission or the mTRP transmission according to the TCI status information that takes effect after the previous indication, and the TCI status information indicated this time is used for performing the next srp transmission after taking effect.

Optionally, for the case that the number of TCI status information for uplink/downlink transmission is one, the first message is used to instruct the terminal to perform the srp transmission or perform the mTRP transmission according to the TCI status information that takes effect after the previous indication, and if the number of TCI status information for uplink/downlink transmission is one in the TCI status information that takes effect after the previous indication, the first message is used to instruct the terminal to perform the srp transmission according to the TCI status information that takes effect after the previous indication.

For example, when the code point value of the TCI field corresponds to 1 TCI state information, it is denoted as tci_state2. This corresponds to the transmission of the srp. According to predefined rules of the system, the PDSCH scheduled in this DCI format 1_1/1_2 will be transmitted using the TCI status information (e.g., denoted as tci_state 0) indicated in the previous DCI format 1_1/1_2 and validated after the previous indication. The terminal receives PDSCH using the reception beam corresponding to TCI state information (tci_state0) that was validated after the previous indication. After successful reception, the HARQ/ACK is fed back to the network device. And TCI state2, this time indicated, will take effect after this HARQ/ACK.

Optionally, for the case that the number of TCI status information for uplink/downlink transmission is one, the first message is used to instruct the terminal to perform the srrp transmission or perform the mTRP transmission according to the TCI status information that takes effect after the previous instruction, and if the number of TCI status information for uplink/downlink transmission is at least two in the TCI status information that takes effect after the previous instruction, the first message is used to instruct the terminal to perform the mTRP transmission according to the TCI status information that takes effect after the previous instruction.

For example, further, when the code point value of the TCI field corresponds to 1 TCI state information, it is denoted as tci_state2. This corresponds to the transmission of the srp. According to rules predefined by the system, the PDSCH scheduled in this DCI format 1_1/1_2 will be transmitted using the TCI status information indicated in the previous DCI format 1_1/1_2 and validated after the previous indication. If the TCI state information that is validated after the previous indication is 2 TCI state information (mTRP transmission), for example, tci_state0 and tci_state5, the terminal will use the reception beams corresponding to the TCI state information (tci_state0 and tci_state5) that is validated after the previous indication to receive PDSCH. After successful reception, the HARQ/ACK is fed back to the network device. And TCI state2, this time indicated, will take effect after this HARQ/ACK.

Optionally, the first message is configured to instruct the terminal to perform single access point srrp transmission or multiple access point mTRP transmission according to at least one TCI state information, including: and when the number of the TCI state information for uplink transmission/downlink transmission in the TCI state information included in the first message is at least two, the first message is used for indicating the terminal to perform mTRP transmission according to the TCI state information in the first message.

Specifically, for the case that the number of TCI status information in uplink transmission/downlink transmission is at least two, it is explained that the transmission mode configured by the network device for the terminal is mTRP transmission, and in Rel-18, the terminal may perform mTRP transmission, so that the terminal may directly perform mTRP transmission according to the TCI status information in the first message.

For example, assume that the terminal is configured to operate in a joint TCI state. When the code point value of the TCI field corresponds to 2 TCI state information, it is denoted as tci_state1 and tci_state2. The 2 TCI state information at this time corresponds to 2 TRPs. Thus, according to the predefined rule of the system, the PDSCH scheduled in the DCI format 1_1/1_2 will be transmitted from 2 different TRPs using the 2 TCI status information, respectively, to implement mTRP transmission. Based on the predefined rule of the system, after the terminal receives the DCI, the terminal will use the received beams corresponding to the 2 TCI status information to receive the PDSCH from different TRPs. After correctly receiving PDSCH, the terminal will feed back HARQ/ACK information to the network device.

In some embodiments, further comprising: the network equipment sends TRP indication domain information to the terminal, wherein the TRP indication domain information is used for indicating to conduct sTRP transmission or mTRP transmission, and the TRP indication domain information is contained in a first message to be sent or is independent of the first message to be sent; the first message is used for indicating the terminal to perform sTRP transmission or mTRP transmission according to the TRP indication domain information and at least one TCI state information.

In this embodiment, the network device may directly send TRP indication domain information to the terminal, that is, directly instruct the terminal to perform the srp transmission or the mTRP transmission, so that the terminal does not need to determine whether to perform the srp transmission or the mTRP transmission according to the number of TCI status information in the first message.

Alternatively, one embodiment of TRP indication field information may contain only 1 bit, indicating srrp or mTRP with 0 or 1. Another embodiment of TRP indication field information may contain 2 bits. For example: "00" means sTRP and uses a first TCI state information/TCI state information group, "01" means sTRP and uses a second TCI state information/TCI state information group, "10" means mTRP.

In some embodiments, the first message is configured to instruct the terminal to perform an srp transmission or a mTRP transmission according to the TRP indication domain information and the at least one TCI status information, and includes: the first message is used for indicating the terminal to perform sTRP transmission or mTRP transmission according to the TRP indication domain information and the TCI state information which takes effect after the previous indication, and performing the next sTRP transmission or the next mTRP transmission according to the TCI state information in the first message after the TCI state information in the first message takes effect; or the first message is used for indicating the terminal to perform sTRP transmission or mTRP transmission according to the TRP indication domain information and at least one TCI state information in the first message.

In this embodiment, the terminal may perform the current srp transmission or perform the mTRP transmission according to the TCI status information that takes effect after the previous indication, where the TCI status information that takes effect is used to perform the next srp transmission or perform the next mTRP after the previous indication. Or, the terminal may also directly perform the srp transmission or the mTRP transmission according to the TCI status information in the first message.

In some embodiments, the first message is configured to instruct the terminal to perform an srp transmission or a mTRP transmission according to the TRP indication domain information and the TCI status information validated after the previous indication, and includes any one of the following:

(1) When the TRP indicates that domain information indicates mTRP transmission is performed, if the number of TCI state information for uplink transmission/downlink transmission in TCI state information effective after the previous indication is one, a first message is used for indicating the terminal to perform sTRP transmission according to the TCI state information effective after the previous indication;

for example, assume that the terminal is configured to operate in a joint TCI state, and the code point value of the TCI field corresponds to 2 TCI state information, denoted as tci_state1 and tci_state2. When the TRP indication domain information indicates mTRP, the PDSCH scheduled in DCI format1_1/1_2 will use the TCI state information that takes effect after the previous indication to transmit, if there are only 1 TCI state information that takes effect after the previous indication, such as tci_state5, the TRP indication domain information is ignored and only uses the tci_state5 to implement the srrp transmission, or the terminal and the network device agree that the terminal is not allowed to be configured as mTRP transmission at this time.

The terminal receives PDSCH using the reception beam corresponding to the TCI state. After successful reception, the HARQ/ACK is fed back to the network device. Thereafter, the tci_state1 and tci_state2 indicated by the DCI are validated.

(2) When the TRP indicates domain information to indicate mTRP transmission, if the number of TCI state information for uplink transmission/downlink transmission in TCI state information effective after the previous indication is at least two, a first message is used for indicating the terminal to perform mTRP transmission according to the TCI state information effective after the previous indication;

for example, assume that the terminal is configured to operate in a joint TCI state, and the code point value of the TCI field corresponds to 2 TCI state information. Denoted as tci_state1 and tci_state2. When the TRP indication domain information indicates mTRP, the PDSCH scheduled in the DCI format1_1/1_2 transmits TCI state information (such as TCI_state5 and TCI_state 6) which takes effect after the previous indication, so as to realize mTRP transmission.

(3) When the TRP indication domain information indicates to perform sTRP transmission, if the number of TCI state information used for uplink transmission/downlink transmission in TCI state information effective after the previous indication is one, the first message is used for indicating the terminal to perform sTRP transmission according to the TCI state information effective after the previous indication;

For example, when the TRP indication field information indicates an srp, the PDSCH scheduled in the DCI format 1_1/1_2 will be transmitted using the TCI status information (e.g., tci_state 5) that takes effect after the previous indication, so as to implement the srp transmission.

(4) When the TRP indication domain information indicates that the sTRP transmission is performed, if the number of TCI state information for uplink transmission/downlink transmission in the TCI state information effective after the previous indication is at least two, the TRP indication domain information is also used for indicating the terminal to select one target TCI state information determined to be currently used from at least two TCI state information for uplink transmission/downlink transmission, and the sTRP transmission is performed through the target TCI state information.

For example, when the TRP indication field information indicates an srp, the PDSCH scheduled in the DCI format 1_1/1_2 will be transmitted using one of the TCI status information (e.g., tci_state5 and tci_state 6) that takes effect after the previous indication, so as to implement the srp transmission. One way is a system predefined rule that uses the first TCI state information that was validated after the previous indication to transmit or uses the lowest ID TCI state information to transmit. Thus, PDSCH will use tci_state5 to achieve the srp transmission. One of the TCI status information may also be used for transmission depending on the configuration of the system. Or the TRP indicates which TCI state information therein is used for transmission, simultaneously in the domain information. The terminal receives PDSCH using the reception beam corresponding to the TCI state. After successful reception, the HARQ/ACK is fed back to the network device. Thereafter, the tci_state1 and tci_state2 indicated by the DCI are validated.

In some embodiments, the first message is used for indicating the terminal to perform the srp transmission or the mTRP transmission according to the TRP indication domain information and at least one TCI state information in the first message, and includes any one of the following:

(1) When the TRP indicates that the domain information indicates mTRP transmission is performed, the first message is used for indicating the terminal to perform mTRP transmission according to TCI state information in the first message;

for example, when the TRP indication field information indicates mTRP, the PDSCH scheduled by the DCI uses the TCI status information indicated in the DCI for mTRP transmission. Assuming that the terminal is configured to operate in a joint TCI state, the code point value of the TCI field corresponds to 2 TCI state information. Denoted as tci_state1 and tci_state2. When the TRP indication field information indicates mTRP, the PDSCH scheduled in the DCI format 1_1/1_2 will be transmitted from 2 different TRPs using the 2 TCI status information, respectively, to implement mTRP transmission. Based on the predefined rule of the system, after the terminal receives the DCI, the terminal will use the received beams corresponding to the 2 TCI status information to receive the PDSCH from different TRPs. After correctly receiving PDSCH, the terminal will feed back HARQ/ACK information to the network device.

(2) When the TRP indication domain information indicates to perform sTRP transmission, if the number of TCI state information for uplink transmission/downlink transmission in the TCI state information included in the first message is one, the first message is used for indicating the terminal to perform sTRP transmission according to the TCI state information in the first message;

For example, when TRP indication field information in DCI format 1_1/1_2 indicates an srrp, the PDSCH scheduled by this DCI is transmitted using TCI status information indicated in this DCI. Assuming that the terminal is configured to operate in a joint TCI state, the code point value of the TCI field corresponds to 1 piece of TCI state information, denoted as tci_state1, and the PDSCH scheduled in this DCI format 1_1/1_2 will use tci_state1 to implement the srrp transmission, i.e., the terminal will use the reception beam corresponding to the TCI state information to receive the PDSCH from the TRP. After correctly receiving PDSCH, the terminal will feed back HARQ/ACK information to the network device.

(3) When the TRP indication domain information indicates that the srp transmission is performed, if the number of the TCI state information for uplink/downlink transmission is at least two in the TCI state information included in the first message, the TRP indication domain information is further used for indicating that the terminal selects one target TCI state information determined to be currently used from at least two TCI state information for uplink/downlink transmission, and performs the srp transmission through the target TCI state information.

For example, when TRP indication field information in DCI format 1_1/1_2 indicates an srrp, the PDSCH scheduled by this DCI is transmitted using TCI status information indicated in this DCI. Assuming that the terminal is configured to operate in a joint TCI state, the code point value of the TCI field corresponds to 2 TCI state information. Denoted as tci_state1 and tci_state2, the terminal selects one target TCI state information determined to be currently used from tci_state1 and tci_state2, for example, determines that the PDSCH scheduled in this DCI format 1_1/1_2 will be transmitted using tci_state2, and the terminal receives the PDSCH using the reception beam corresponding to tci_state2. After successful reception, the HARQ/ACK is fed back to the network device.

In some embodiments, in a case where the first message is used to instruct the terminal to perform the srp transmission or the mTRP transmission according to the TRP indication domain information and at least one TCI state information in the first message, if a slot interval between the first time and the second time is less than or equal to a threshold value, the srp transmission or the mTRP transmission indicated by the first message is performed according to one or more of the following TCI state information: the network device sends one or more pieces of TCI state information adopted by the first message, one or more pieces of TCI state information in an effective state when the first message indicates the srrp transmission or the mTRP transmission starts, and TCI state information corresponding to a predefined code point in the TCI state information indicated to be activated by the network device. The first time is the time when the terminal receives the first message, and the second time is the time when the terminal receives the sTRP transmission or the mTRP transmission indicated by the first message.

The threshold value may be configured by the network device, or the terminal may be configured by the network device after reporting the threshold value to the network device according to its demodulation capability.

Wherein, the network device sends one or more pieces of TCI state information adopted by the first message, namely one or more pieces of TCI state information adopted by the first message in transmission; the one or more pieces of TCI state information in an active state at the beginning of the srp transmission or the mTRP transmission indicated by the first message refers to one or more pieces of TCI state information in an active state at the terminal side, such as TCI state information adopted when the terminal receives the last srp transmission or the last mTRP transmission, before the terminal receives the srp transmission or the mTRP transmission indicated by the first message; the network device indicates the activated TCI state information, which is the TCI state information that the network device indicates to the terminal before sending the first message, and the predefined code point is a code point pre-configured in the communication system. In the communication system, it may be predefined which TCI state information corresponding to a code point is specifically adopted as TCI state information for the terminal to perform the srrp transmission or the mTRP transmission when a time gap between the first time and the second time is smaller than a threshold value.

In this embodiment, if the time slot interval between the time when the terminal receives the first message (i.e., the first time) and the time when the terminal receives the srp transmission or the mTRP transmission indicated by the first message (i.e., the second time) is smaller than the threshold value, the TCI state information in the first message is likely to be unable to be demodulated before the terminal receives the srp transmission or the mTRP transmission indicated by the first message, and the srp transmission or the mTRP transmission indicated by the first message is unable to be received according to the TCI state information in the first message. For this situation, TCI state information employed for the srp transmission or the mTRP transmission indicated by the first message needs to be predefined in the communication system. Specifically, the srp transmission or mTRP transmission indicated by the first message may be performed according to one or more of the following TCI status information: the network device sends one or more pieces of TCI state information adopted by the first message, one or more pieces of TCI state information in an effective state when the first message indicates the srrp transmission or the mTRP transmission starts, and TCI state information corresponding to a predefined code point in the TCI state information indicated to be activated by the network device. Therefore, the problem that the TCI state information in the first message cannot be timely resolved when the first moment and the second moment are too close to each other to influence data transmission of the terminal is avoided, and reliability and stability of communication between the terminal and the network equipment are improved.

As an example, taking the first message as DCI format1_1/1_2 and the srrp transmission or mTRP transmission indicated by the first message as PDSCH, when the time slot interval between the terminal receiving DCI format1_1/1_2 and the terminal receiving PDSCH indicated by this DCI format1_1/1_2 is smaller than a threshold value, the terminal cannot demodulate the DCI status information in dcifeform 1_1/1_2 before receiving this PDSCH, and needs to predefine the TCI status information adopted by the terminal receiving this PDSCH, and the predefine procedure of the terminal receiving the TCI status information adopted by this PDSCH is as follows:

(1) The terminal is configured to operate in a joint TCI state, and when DCI format1_1/1_2 is transmitted, the TCI state information adopted by the DCI format1_1/1_2 is tci_state1 and tci_state2, and one of tci_state1 and tci_state2 may be configured to serve as the TCI state information of PDSCH transmission, or tci_state1 and tci_state2 may be configured to serve as the TCI state information of PDSCH transmission.

For example, in tci_state1 and tci_state2, the TCI state information tci_state1 with the smallest ID is determined, and the terminal uses the reception beam corresponding to tci_state1 to receive PDSCH. After successfully receiving the PDSCH, the terminal may feed back HARQ/ACK to the network device.

(2) The terminal is configured to operate in a joint TCI state, and when DCI format1_1/1_2 is transmitted, the TCI state information used by the DCI format1_1/1_2 is tci_state2, and the same TCI state information (tci_state 2) is used as the TCI state information when PDSCH is received by the terminal.

(3) When the terminal performs PDSCH transmission indicated by DCI format 1_1/1_2, the effective TCI state information is tci_state3 and tci_state4, and then the configurable terminal adopts one of tci_state3 and tci_state4 as the TCI state information when receiving PDSCH, or the configurable terminal adopts tci_state3 and tci_state4 as the TCI state information when receiving PDSCH.

For example, the TCI state information tci_state3 with the smallest ID may be determined from the tci_state3 and tci_state4 that are in effect, and the terminal uses the reception beam corresponding to tci_state3 to perform PDSCH reception. After successfully receiving the PDSCH, the terminal may feed back HARQ/ACK to the network device.

(4) The network device may indicate the activated TCI status information to the terminal through the MAC-CE when the network device transmits the DCI format 1_1/1_2 to the terminal or when or before the network device PDSCH-transmits with the terminal. The MAC-CE may include 8 code points, where the 8 code points respectively correspond to 8 sets of TCI status information, that is, the 8 code points are respectively used to activate the 8 sets of TCI status information. As shown in table 1 below, code point 000 corresponds to one TCI state information: TCI-State3; code point 001 corresponds to 2 TCI state information: TCI-State9 and TCI-State10; … … (not depicted); code point 111 corresponds to 2 TCI state information: TCI-State88 and TCI-State98.

Code point	Activating TCI state information-1	Activating TCI state information-2
			000	TCI-State3
001	TCI-State9	TCI-State10
			010	TCI-State18	TCI-State19
011	TCI-State25	TCI-State29
			100	TCI-State36
101	TCI-State7	TCI-State2
			110	TCI-State100	TCI-State102
111	TCI-State88	TCI-State98

Based on table 1:

in one manner, in the communication system, the lowest code point corresponding to two TCI status information may be predefined as the code point corresponding to the TCI status information adopted when receiving PDSCH. Then, in table 1, the terminal may receive the PDSCH using TCI-State9 and TCI-State10 corresponding to code point 001.

Alternatively, in the communication system, TCI State information corresponding to the lowest code point may be predefined as TCI State information when PDSCH is received, and then in table 1, the terminal may receive PDSCH using TCI-State3 corresponding to code point 000.

Specifically, the dci_format 1_1/1_2 may further include a plurality of TRP indication domain information, which respectively correspond to different channels and/or reference signals, for example, PDCCH/PUCCH/PUSCH/SRS/CSI-RS, etc., to indicate whether the corresponding channel uses the srrp transmission or the mTRP transmission.

In some embodiments, after the network device sends the TCI status information to the terminal through the first message, if the network device indicates that the TRP indication domain information does not exist in the first message, or indicates that the TRP indication domain information is not sent through another message, the terminal operates according to the operation mode of Rel-17, that is, performs the srp transmission.

In some embodiments, further comprising: and receiving an acknowledgement message for the first message, wherein the acknowledgement message is sent by the terminal after the first message is received, and the acknowledgement message is used for determining the effective time of the TCI state information indicated by the first message.

Alternatively, the acknowledgement message is specifically, for example, a HARQ/ACK feedback message.

Optionally, when the TCI state information indicated in the DCI format1_1/1_2 corresponds to the srrp transmission or the mTRP transmission, the terminal feeds back the HARQ/ACK of the DCI, and validates the TCI state information indicated by the DCI after the HARQ/ACK, that is, characterizes the TCI state information indicated by the present time for the present time transmission. At this time, after receiving DCI format1_1/1_2, the terminal feeds back the HARQ/ACK of the DCI. And validating the TCI status information indicated by the DCI after the HARQ/ACK. If the PDSCH scheduled by the DCI is transmitted after the indicated TCI status information is validated, the PDSCH will perform an srp transmission (one TCI status information is indicated by the DCI) or a mTRP transmission (two TCI status information are indicated by the DCI) according to the indicated TCI status information in the DCI. After the terminal correctly receives the PDSCH, the terminal further feeds back HARQ/ACK information corresponding to the PDSCH to the network device.

Optionally, when the TCI status information indicated in DCI format1_1/1_2 corresponds to the srp, the PDSCH scheduled by the DCI uses the TCI status information that takes effect after the previous indication to transmit, i.e. the terminal does not feedback the HARQ/ACK indicated by the DCI; and when the indicated TCI state information corresponds to mTRP, the terminal feeds back the HARQ/ACK of the DCI, and validates the TCI state indicated by the DCI after the HARQ/ACK. Assume that the terminal is configured to operate in a joint TCI state. When the code point value of the TCI field corresponds to 2 TCI state information, it is denoted as tci_state1 and tci_state2. The 2 TCI state information at this time corresponds to 2 TRPs. Thus, according to the predefined rules of the system, the terminal will feed back the HARQ/ACK of the DCI after receiving the DCI. And tci_state1 and tci_state2 are validated after this HARQ/ACK. If the PDSCH scheduled by the DCI is transmitted after the tci_state1 and the tci_state2 are validated, the PDSCH will be transmitted from 2 different TRPs by using the 2 TCI status information, so as to implement mTRP transmission. After the terminal correctly receives the PDSCH, the terminal further feeds back HARQ/ACK information corresponding to the PDSCH to the network device.

Alternatively, when the code point value of the TCI field corresponds to 1 TCI state information, the value is denoted as tci_state2. This corresponds to the transmission of the srp. The PDSCH scheduled in this DCI format 1_1/1_2 will be transmitted using TCI status information (e.g., denoted as tci_state 0) that was validated after the previous indication according to predefined rules of the system. The terminal receives PDSCH using the reception beam corresponding to TCI state information (tci_state0) that was validated after the previous indication. After successful reception, the HARQ/ACK of the PDSCH is fed back to the base station. And TCI state2, this time indicated, will take effect after this HARQ/ACK.

In the embodiment, by adding the confirmation message of the signaling, the transmission mode of the PDSCH scheduled by DCI is ensured to be matched with the sTRP or mTRP transmission mode indicated by the DCI.

It should be understood that, although the steps in the flowcharts in the above embodiments are sequentially shown as indicated by arrows, these steps are not necessarily sequentially performed in the order indicated by the arrows. The steps are not strictly limited in order and may be performed in other orders, unless explicitly stated herein. Moreover, at least some of the steps in the figures may include multiple sub-steps or stages that are not necessarily performed at the same time, but may be performed at different times, the order of their execution not necessarily occurring in sequence, but may be performed alternately or alternately with other steps or at least a portion of the other steps or stages.

In some embodiments, a beam pointing apparatus is provided for use in a network device.

Fig. 3 is a schematic diagram of a beam indicating device according to an embodiment of the present application, as shown in fig. 3, where the device includes:

an acquiring module 310, configured to acquire transmission capability information of a terminal;

the sending module 320 is configured to send a first message to the terminal according to the transmission capability information, where the first message includes at least one transmission configuration indication TCI status information, and the first message is configured to instruct the terminal to transmit according to the TCI status information.

In some embodiments, the sending module 320 is further configured to: the method comprises the steps that TCI mode information corresponding to TCI state information is sent to a terminal, the TCI mode information corresponding to the TCI state information is used for indicating that the TCI state information is applied to uplink transmission and/or downlink transmission, and the TCI mode information corresponding to the TCI state information is contained in a first message to be sent or is independent of the first message to be sent; the TCI mode information comprises a first TCI mode and/or a second TCI mode, and under the first TCI mode, TCI state information used for uplink transmission is the same as TCI state information used for downlink transmission; in the second TCI mode, TCI state information used for uplink transmission is different from TCI state information used for downlink transmission.

In some embodiments, TCI mode information corresponding to TCI state information is sent independent of the first message, including: using one signaling or at least two signaling to send TCI mode information corresponding to the TCI state information to the terminal; wherein each of the at least two signaling is associated with a control resource set CORESET or CORESET group, the CORESET group comprising coreets having the same identity.

In some embodiments, sending TCI mode information corresponding to TCI state information to a terminal using one signaling or using at least two signaling includes: sending one or at least two second messages to the terminal; the second message includes one or more TCI status fields and TCI mode information corresponding to each TCI status field, or the second message includes one or more TCI status fields, and each TCI status field in the second message is preset to correspond to one type of TCI mode information.

In some embodiments, TCI mode information corresponding to TCI state information is included in a first message and sent, including: the first message comprises a TCI mode information field, wherein the TCI mode information field is used for indicating TCI mode information; alternatively, the first message includes a TCI field, and a portion of bits in the TCI field are used to indicate TCI mode information.

In some embodiments, the first message is configured to instruct the terminal to transmit according to TCI status information, including: the first message is used for indicating the terminal to perform single access point sTRP transmission or multi-access point mTRP transmission according to at least one TCI state information, and the at least one TCI state information is used for indicating to perform uplink transmission and/or downlink transmission.

In some embodiments, the first message is configured to instruct the terminal to perform single access point srrp transmission or multiple access point mTRP transmission according to at least one TCI state information, including: when the number of the TCI state information used for uplink transmission/downlink transmission is one in the TCI state information included in the first message, the first message is used for indicating the terminal to perform sTRP transmission or mTRP transmission according to the TCI state information which takes effect after the previous indication, and after the TCI state information in the first message takes effect, the next sTRP transmission is performed according to the TCI state information in the first message; or when the number of the TCI state information used for uplink transmission/downlink transmission in the TCI state information included in the first message is at least two, the first message is used for indicating the terminal to perform mTRP transmission according to the TCI state information in the first message.

In some embodiments, the first message is configured to instruct the terminal to perform an srp transmission or a mTRP transmission according to TCI status information that takes effect after the previous instruction, and includes: if the number of the TCI state information for uplink transmission/downlink transmission in the TCI state information which takes effect after the previous indication is one, the first message is used for indicating the terminal to perform sTRP transmission according to the TCI state information which takes effect after the previous indication; if the number of the TCI state information for uplink transmission/downlink transmission in the TCI state information which takes effect after the previous indication is at least two, the first message is used for indicating the terminal to perform mTRP transmission according to the TCI state information which takes effect after the previous indication.

In some embodiments, the sending module 320 is further configured to: transmitting TRP indication domain information to the terminal, the TRP indication domain information being used for indicating to perform the srp transmission or the mTRP transmission, the TRP indication domain information being transmitted in the first message or being transmitted independently of the first message; the first message is used for indicating the terminal to perform sTRP transmission or mTRP transmission according to the TRP indication domain information and at least one TCI state information.

In some embodiments, the first message is configured to instruct the terminal to perform an srp transmission or a mTRP transmission according to the TRP indication domain information and the TCI status information validated after the previous indication, and includes: when the TRP indicates that domain information indicates mTRP transmission is performed, if the number of TCI state information for uplink transmission/downlink transmission in TCI state information effective after the previous indication is one, a first message is used for indicating the terminal to perform sTRP transmission according to the TCI state information effective after the previous indication; or when the TRP indicates the domain information to indicate to perform mTRP transmission, if the number of TCI state information for uplink transmission/downlink transmission in TCI state information effective after the previous indication is at least two, the first message is used for indicating the terminal to perform mTRP transmission according to the TCI state information effective after the previous indication; or when the TRP indication domain information indicates to perform sTRP transmission, if the number of TCI state information used for uplink transmission/downlink transmission in TCI state information effective after the previous indication is one, the first message is used for indicating the terminal to perform sTRP transmission according to the TCI state information effective after the previous indication; or when the TRP indication domain information indicates that the srp transmission is performed, if the number of the TCI state information for uplink/downlink transmission is at least two in the TCI state information effective after the previous indication, the TRP indication domain information is further used for indicating the terminal to select one target TCI state information determined to be currently used from at least two TCI state information for uplink/downlink transmission, and perform the srp transmission through the target TCI state information.

In some embodiments, the first message is configured to instruct the terminal to perform an srp transmission or a mTRP transmission according to the TRP indication domain information and at least one TCI status information in the first message, including: when the TRP indicates that the domain information indicates mTRP transmission is performed, the first message is used for indicating the terminal to perform mTRP transmission according to TCI state information in the first message; or when the TRP indication domain information indicates to perform the srp transmission, if the number of the TCI state information for uplink transmission/downlink transmission in the TCI state information included in the first message is one, the first message is used for indicating the terminal to perform the srp transmission according to the TCI state information in the first message; or when the TRP indication domain information indicates that the srp transmission is performed, if the number of the TCI state information for uplink/downlink transmission is at least two in the TCI state information included in the first message, the TRP indication domain information is further used for indicating that the terminal selects one target TCI state information determined to be currently used from at least two TCI state information for uplink/downlink transmission, and performs the srp transmission through the target TCI state information.

In some embodiments, in a case where the first message is used to instruct the terminal to perform the srp transmission or the mTRP transmission according to the TRP indication domain information and at least one TCI state information in the first message, if a slot interval between the first time and the second time is less than or equal to a threshold value, the srp transmission or the mTRP transmission indicated by the first message is performed according to one or more of the following TCI state information: the network device sending one or more TCI status information employed by the first message; one or more TCI status information in an active state at the start of the srp transmission or mTRP transmission indicated by the first message; TCI state information corresponding to a predefined code point among TCI state information indicating activation by the network device; the first time is the time when the terminal receives the first message, and the second time is the time when the terminal receives the sTRP transmission or the mTRP transmission indicated by the first message.

In some embodiments, the beam pointing apparatus further comprises: a receiving unit (not shown in the figure) for receiving an acknowledgement message for the first message, where the acknowledgement message is sent by the terminal after receiving the first message, and the acknowledgement message is used for determining the effective time of the TCI status information indicated by the first message.

In some embodiments, the obtaining module is specifically configured to: and receiving a third message sent by the terminal, wherein the third message comprises transmission capability information.

In some embodiments, a beam pointing device is provided, which is applied to a terminal.

Fig. 4 is a schematic diagram of a beam indicating device according to an embodiment of the present application, as shown in fig. 4, where the device includes:

a receiving module 410, configured to receive a first message from a network device, where the first message includes at least one transmission configuration indication TCI status information;

the transmission module 420 is configured to transmit according to the TCI status information.

In some embodiments, the beam pointing apparatus further comprises: a first obtaining module (not shown in the figure) configured to obtain TCI mode information corresponding to the TCI state information from the first message; alternatively, the receiving module 410 is further configured to: receiving TCI mode information corresponding to TCI state information sent by the network equipment independently of the first message, wherein the TCI mode information corresponding to the TCI state information is used for indicating that the TCI state information is applied to uplink transmission and/or downlink transmission; the TCI mode information comprises a first TCI mode and/or a second TCI mode, and under the first TCI mode, TCI state information used for uplink transmission is the same as TCI state information used for downlink transmission; in the second TCI mode, TCI state information used for uplink transmission is different from TCI state information used for downlink transmission.

In some embodiments, in the process of receiving TCI mode information corresponding to TCI status information from a network device, the receiving module 410 is specifically configured to: receiving TCI mode information corresponding to TCI state information sent by network equipment by using a signaling or at least two signaling; wherein each of the at least two signaling is associated with a control resource set CORESET or CORESET group, the CORESET group comprising coreets having the same identity.

In some embodiments, in a process of receiving TCI mode information corresponding to TCI status information sent by a network device using one signaling or using at least two signaling, the receiving module 410 is specifically configured to: receiving one or at least two second messages sent by the network equipment; the second message includes one or more TCI status fields and TCI mode information corresponding to each TCI status field, or the second message includes one or more TCI status fields, and each TCI status field in the second message is preset to correspond to one type of TCI mode information.

In some embodiments, the first message includes a TCI mode information field, the TCI mode information field being used for indicating TCI mode information; alternatively, the first message includes a TCI field, and a portion of bits in the TCI field are used to indicate TCI mode information.

In some embodiments, transmitting according to TCI status information includes: and carrying out single access point sTRP transmission or multi-access point mTRP transmission according to at least one TCI state information, wherein the at least one TCI state information is used for indicating to carry out uplink transmission and/or downlink transmission.

In some embodiments, during single access point srrp transmission or multiple access point mTRP transmission according to at least one TCI status information, the transmission module 420 is specifically configured to: when the number of TCI state information for uplink transmission/downlink transmission is one in TCI state information included in the first message, performing sTRP transmission or mTRP transmission according to TCI state information which takes effect after the previous indication, and performing the next sTRP transmission according to TCI state information in the first message after the TCI state information in the first message takes effect; or when the number of the TCI state information for uplink transmission/downlink transmission in the TCI state information included in the first message is at least two, mTRP transmission is performed according to the TCI state information in the first message.

In some embodiments, in the process of srp transmission or mTRP transmission according to the TCI status information that takes effect after the previous indication, the transmission module 420 is specifically configured to: if the number of TCI state information for uplink transmission/downlink transmission in TCI state information which takes effect after the previous indication is one, sTRP transmission is carried out according to the TCI state information which takes effect after the previous indication; and if the number of the TCI state information for uplink transmission/downlink transmission in the TCI state information which takes effect after the previous indication is at least two, mTRP transmission is carried out according to the TCI state information which takes effect after the previous indication.

In some embodiments, the beam pointing apparatus further comprises: a second acquisition module (not shown in the figure) acquires TRP indication field information from the first message; alternatively, the receiving module 410 is specifically configured to: the receiving network device sends TRP indication field information independent of the first message, the TRP indication field information being used for indicating either an srp transmission or an mTRP transmission. In the process of transmitting according to the TCI status information, the transmission module 420 is specifically configured to: and carrying out sTRP transmission or mTRP transmission according to the TRP indication domain information and at least one TCI state information.

In some embodiments, in the process of the srp transmission or the mTRP transmission according to the TRP indication field information and the at least one TCI status information, the transmission module 420 is specifically configured to: the method comprises the steps of carrying out sTRP transmission or mTRP transmission according to TRP indication domain information and TCI state information which takes effect after the previous indication, and carrying out the next sTRP transmission or the next mTRP transmission according to the TCI state information in the first message after the TCI state information in the first message takes effect; or, the sTRP transmission or the mTRP transmission is performed according to the TRP indication domain information and at least one TCI state information in the first message.

In some embodiments, in the process of the srp transmission or the mTRP transmission according to the TRP indication domain information and the TCI status information that takes effect after the previous indication, the transmission module 420 is specifically configured to: when the TRP indication domain information indicates mTRP transmission, if the number of TCI state information for uplink transmission/downlink transmission in TCI state information which takes effect after the previous indication is one, the sTRP transmission is carried out according to the TCI state information which takes effect after the previous indication; or when the TRP indicates that domain information indicates mTRP transmission is performed, if the number of TCI state information for uplink transmission/downlink transmission in TCI state information effective after the previous indication is at least two, performing mTRP transmission according to TCI state information effective after the previous indication; or when the TRP indication domain information indicates to perform sTRP transmission, if the number of TCI state information for uplink transmission/downlink transmission in TCI state information effective after the previous indication is one, performing sTRP transmission according to the TCI state information effective after the previous indication; or when the TRP indication domain information indicates that the srp transmission is performed, if the number of TCI state information for uplink/downlink transmission is at least two in the TCI state information effective after the previous indication, selecting one target TCI state information determined to be currently used from the at least two TCI state information for uplink/downlink transmission, and performing the srp transmission through the target TCI state information.

In some embodiments, in the process of the srp transmission or the mTRP transmission according to the TRP indication field information and the at least one TCI status information in the first message, the transmission module 420 is specifically configured to: when the TRP indication domain information indicates mTRP transmission, mTRP transmission is performed according to TCI state information in the first message; or when the TRP indication domain information indicates to perform sTRP transmission, if the number of TCI state information for uplink transmission/downlink transmission in the TCI state information included in the first message is one, performing sTRP transmission according to the TCI state information in the first message; or when the TRP indication domain information indicates that the srp transmission is performed, if the number of the TCI state information for uplink/downlink transmission is at least two in the TCI state information included in the first message, selecting one target TCI state information determined to be currently used from the at least two TCI state information for uplink/downlink transmission, and performing the srp transmission through the target TCI state information.

In some embodiments, the beam pointing apparatus further comprises: a first sending module (not shown in the figure) is configured to send, after receiving the first message, an acknowledgement message for the first message to the network device, where the acknowledgement message is used to determine an effective time of the TCI status information indicated by the first message.

In some embodiments, the beam pointing apparatus further comprises: a second transmitting module (not shown in the figure) for transmitting a third message to the network device, the third message comprising the transmission capability information of the terminal.

For specific limitations of the beam pointing apparatus, reference may be made to the above limitations of the beam pointing method, and no further description is given here. The various modules in the beam pointing device described above may be implemented in whole or in part in software, hardware, and combinations thereof. The above modules may be embedded in hardware or may be independent of a processor in the computer device, or may be stored in software in a memory in the computer device, so that the processor may call and execute operations corresponding to the above modules.

In some embodiments, a network device is provided.

Fig. 5 is a schematic structural diagram of a network device according to an embodiment of the present application, where, as shown in fig. 5, the network device includes: memory 51, transceiver 52, processor 53.

Wherein the memory 51 is used for storing a computer program; a transceiver 52 for transceiving data under the control of the processor; a processor 53 for reading the computer program in the memory and performing the following operations:

acquiring transmission capability information of a terminal;

In some embodiments, the processor 53 is further configured to: the method comprises the steps that TCI mode information corresponding to TCI state information is sent to a terminal, the TCI mode information corresponding to the TCI state information is used for indicating that the TCI state information is applied to uplink transmission and/or downlink transmission, and the TCI mode information corresponding to the TCI state information is contained in a first message to be sent or is independent of the first message to be sent; the TCI mode information comprises a first TCI mode and/or a second TCI mode, and under the first TCI mode, TCI state information used for uplink transmission is the same as TCI state information used for downlink transmission; in the second TCI mode, TCI state information used for uplink transmission is different from TCI state information used for downlink transmission.

In some embodiments, the processor 53 is further configured to: transmitting TRP indication domain information to the terminal, the TRP indication domain information being used for indicating to perform the srp transmission or the mTRP transmission, the TRP indication domain information being transmitted in the first message or being transmitted independently of the first message; the first message is used for indicating the terminal to perform sTRP transmission or mTRP transmission according to the TRP indication domain information and at least one TCI state information.

In some embodiments, the processor 53 is further configured to: and receiving an acknowledgement message for the first message, wherein the acknowledgement message is sent by the terminal after the first message is received, and the acknowledgement message is used for determining the effective time of the TCI state information indicated by the first message.

In some embodiments, the processor 53 is further configured to: and receiving a third message sent by the terminal, wherein the third message comprises transmission capability information.

In some embodiments, a terminal is provided.

Fig. 6 is a schematic structural diagram of a terminal according to an embodiment of the present application, as shown in fig. 6, where the terminal includes: memory 61, transceiver 62, processor 63.

Wherein the memory 61 is for storing a computer program; a transceiver 62 for transceiving data under the control of the processor; a processor 63 for reading the computer program in the memory and performing the following operations:

receiving a first message from a network device, the first message including at least one transmission configuration indication, TCI, status information;

and transmitting according to the TCI state information.

In some embodiments, processor 63 is further configured to perform the following: acquiring TCI mode information corresponding to TCI state information from the first message, or receiving TCI mode information corresponding to TCI state information which is sent by the network equipment independently of the first message, wherein the TCI mode information corresponding to the TCI state information is used for indicating that the TCI state information is applied to uplink transmission and/or downlink transmission; the TCI mode information comprises a first TCI mode and/or a second TCI mode, and under the first TCI mode, TCI state information used for uplink transmission is the same as TCI state information used for downlink transmission; in the second TCI mode, TCI state information used for uplink transmission is different from TCI state information used for downlink transmission.

In some embodiments, in receiving TCI mode information corresponding to TCI state information from a network device, processor 63 is further configured to: receiving TCI mode information corresponding to TCI state information sent by network equipment by using a signaling or at least two signaling; wherein each of the at least two signaling is associated with a control resource set CORESET or CORESET group, the CORESET group comprising coreets having the same identity.

In some embodiments, during the process of receiving TCI mode information corresponding to TCI status information sent by the network device using one signaling or using at least two signaling, the processor 63 is further configured to: receiving one or at least two second messages sent by the network equipment; the second message includes one or more TCI status fields and TCI mode information corresponding to each TCI status field, or the second message includes one or more TCI status fields, and each TCI status field in the second message is preset to correspond to one type of TCI mode information.

In some embodiments, during transmission according to the TCI state information, processor 63 is further configured to: and carrying out single access point sTRP transmission or multi-access point mTRP transmission according to at least one TCI state information, wherein the at least one TCI state information is used for indicating to carry out uplink transmission and/or downlink transmission.

In some embodiments, during single access point srp transmission or multiple access point mTRP transmission according to at least one TCI status information, the processor 63 is further configured to: when the number of TCI state information for uplink transmission/downlink transmission is one in TCI state information included in the first message, performing sTRP transmission or mTRP transmission according to TCI state information which takes effect after the previous indication, and performing the next sTRP transmission according to TCI state information in the first message after the TCI state information in the first message takes effect; or when the number of the TCI state information for uplink transmission/downlink transmission in the TCI state information included in the first message is at least two, mTRP transmission is performed according to the TCI state information in the first message.

In some embodiments, during the srp transmission or the mTRP transmission according to the TCI status information that is validated after the previous indication, the processor 63 is further configured to: if the number of TCI state information for uplink transmission/downlink transmission in TCI state information which takes effect after the previous indication is one, sTRP transmission is carried out according to the TCI state information which takes effect after the previous indication; and if the number of the TCI state information for uplink transmission/downlink transmission in the TCI state information which takes effect after the previous indication is at least two, mTRP transmission is carried out according to the TCI state information which takes effect after the previous indication.

In some embodiments, processor 63 is further configured to perform the following: acquiring TRP indication domain information from the first message, or receiving TRP indication domain information which is sent by the network equipment independently of the first message and is used for indicating to perform sTRP transmission or mTRP transmission; transmitting according to the TCI state information, including: and carrying out sTRP transmission or mTRP transmission according to the TRP indication domain information and at least one TCI state information.

In some embodiments, during the srp transmission or mTRP transmission according to the TRP indication field information and the at least one TCI status information, the processor 63 is further configured to: the method comprises the steps of carrying out sTRP transmission or mTRP transmission according to TRP indication domain information and TCI state information which takes effect after the previous indication, and carrying out the next sTRP transmission or the next mTRP transmission according to the TCI state information in the first message after the TCI state information in the first message takes effect; or, the sTRP transmission or the mTRP transmission is performed according to the TRP indication domain information and at least one TCI state information in the first message.

In some embodiments, during the srp transmission or the mTRP transmission according to the TRP indication field information and the TCI status information validated after the previous indication, the processor 63 is further configured to: when the TRP indication domain information indicates mTRP transmission, if the number of TCI state information for uplink transmission/downlink transmission in TCI state information which takes effect after the previous indication is one, the sTRP transmission is carried out according to the TCI state information which takes effect after the previous indication; or when the TRP indicates that domain information indicates mTRP transmission is performed, if the number of TCI state information for uplink transmission/downlink transmission in TCI state information effective after the previous indication is at least two, performing mTRP transmission according to TCI state information effective after the previous indication; or when the TRP indication domain information indicates to perform sTRP transmission, if the number of TCI state information for uplink transmission/downlink transmission in TCI state information effective after the previous indication is one, performing sTRP transmission according to the TCI state information effective after the previous indication; or when the TRP indication domain information indicates that the srp transmission is performed, if the number of TCI state information for uplink/downlink transmission is at least two in the TCI state information effective after the previous indication, selecting one target TCI state information determined to be currently used from the at least two TCI state information for uplink/downlink transmission, and performing the srp transmission through the target TCI state information.

In some embodiments, during the srp transmission or the mTRP transmission according to the TRP indication field information and the at least one TCI status information in the first message, the processor 63 is further configured to: when the TRP indication domain information indicates mTRP transmission, mTRP transmission is performed according to TCI state information in the first message; or when the TRP indication domain information indicates to perform sTRP transmission, if the number of TCI state information for uplink transmission/downlink transmission in the TCI state information included in the first message is one, performing sTRP transmission according to the TCI state information in the first message; or when the TRP indication domain information indicates that the srp transmission is performed, if the number of the TCI state information for uplink/downlink transmission is at least two in the TCI state information included in the first message, selecting one target TCI state information determined to be currently used from the at least two TCI state information for uplink/downlink transmission, and performing the srp transmission through the target TCI state information.

In some embodiments, in a case where the first message is used to instruct the terminal to perform the srp transmission or the mTRP transmission according to the TRP indication domain information and at least one TCI state information in the first message, if a slot interval between the first time and the second time is less than or equal to a threshold value, the srp transmission or the mTRP transmission indicated by the first message is performed according to one or more of the following TCI state information: the network device sending one or more TCI status information employed by the first message; one or more TCI status information in an active state at the start of the srp transmission or mTRP transmission indicated by the first message; TCI state information corresponding to a predefined code point among TCI state information indicating activation by the network device; the first time is the time when the terminal receives the first message, and the second time receives the time when the terminal performs the sTRP transmission or the mTRP transmission indicated by the first message.

In some embodiments, processor 63 is further configured to perform the following: after receiving the first message, sending an acknowledgement message for the first message to the network device, the acknowledgement message being used to determine the time of validity of the TCI status information indicated by the first message.

In some embodiments, processor 63 is further configured to perform the following: and sending a third message to the network equipment, wherein the third message comprises the transmission capability information of the terminal.

In such devices, the memory and the processor are electrically connected, either directly or indirectly, to enable transmission or interaction of data. For example, the elements may be electrically connected to each other via one or more communication buses or signal lines, such as through a bus connection. The memory stores computer-executable instructions for implementing the data access control method, including at least one software functional module that may be stored in the memory in the form of software or firmware, and the processor executes the software programs and modules stored in the memory to perform various functional applications and data processing.

The Memory may be, but is not limited to, random access Memory (Random Access Memory, RAM), read Only Memory (ROM), programmable Read Only Memory (Programmable Read-Only Memory, PROM), erasable Read Only Memory (Erasable Programmable Read-Only Memory, EPROM), electrically erasable Read Only Memory (Electric Erasable Programmable Read-Only Memory, EEPROM), etc. The memory is used for storing a program, and the processor executes the program after receiving the execution instruction. Further, the software programs and modules within the memory may also include an operating system, which may include various software components and/or drivers for managing system tasks (e.g., memory management, storage device control, power management, etc.), and may communicate with various hardware or software components to provide an operating environment for other software components.

The processor may be an integrated circuit chip with signal processing capabilities. The processor may be a general-purpose processor including a central processing unit (Central Processing Unit, CPU), a network processor (Network Processor, NP), and the like. The disclosed methods, steps, and logic blocks in the embodiments of the present application may be implemented or performed. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.

In some embodiments, a computer-readable storage medium is provided, in which computer-executable instructions are stored, which when executed by a processor, are adapted to carry out the steps of the method embodiments of the application.

In some embodiments, a computer program product is provided comprising a computer program which, when executed by a processor, implements the steps of the method embodiments of the application.

Those skilled in the art will appreciate that implementing all or part of the above-described methods may be accomplished by way of a computer program, which may be stored on a non-transitory computer readable storage medium and which, when executed, may comprise the steps of the above-described embodiments of the methods. Any reference to memory, storage, database, or other medium used in embodiments provided herein may include non-volatile and/or volatile memory. The nonvolatile memory can include Read Only Memory (ROM), programmable ROM (PROM), electrically Programmable ROM (EPROM), electrically Erasable Programmable ROM (EEPROM), or flash memory. Volatile memory can include Random Access Memory (RAM) or external cache memory. By way of illustration and not limitation, RAM is available in a variety of forms such as Static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double Data Rate SDRAM (DDRSDRAM), enhanced SDRAM (ESDRAM), synchronous Link DRAM (SLDRAM), memory bus direct RAM (RDRAM), direct memory bus dynamic RAM (DRDRAM), and memory bus dynamic RAM (RDRAM), among others.

Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the application disclosed herein. This application is intended to cover any adaptations, uses, or adaptations of the disclosure following, in general, the principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.

It is to be understood that the present disclosure is not limited to the precise arrangements and instrumentalities shown in the drawings, and that various modifications and changes may be effected without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims

1. A beam pointing method, applied to a network device, comprising:

acquiring transmission capability information of a terminal;

2. The method as recited in claim 1, further comprising:

the TCI mode information corresponding to the TCI state information is sent to a terminal, the TCI mode information corresponding to the TCI state information is used for indicating that the TCI state information is applied to uplink transmission and/or downlink transmission, and the TCI mode information corresponding to the TCI state information is contained in the first message to be sent or is independent of the first message to be sent;

the TCI mode information comprises a first TCI mode and/or a second TCI mode, and the TCI state information used by uplink transmission is the same as the TCI state information used by downlink transmission in the first TCI mode; in the second TCI mode, the TCI state information used for uplink transmission is different from the TCI state information used for downlink transmission.

3. The method of claim 2, wherein TCI mode information corresponding to the TCI state information is sent independent of the first message, comprising:

using one signaling or at least two signaling to send TCI mode information corresponding to the TCI state information to a terminal;

wherein each of the at least two signaling is associated with a control resource set CORESET or CORESET group, the CORESET group comprising coreets having the same identity.

4. A method according to claim 3, characterized in that the transmission of the TCI mode information corresponding to the TCI state information to the terminal using one signaling or using at least two signaling comprises:

sending one or at least two second messages to the terminal;

wherein the second message includes one or more TCI status domains and TCI mode information corresponding to each TCI status domain, or

The second message includes one or more TCI status fields, and each TCI status field in the second message is preset to correspond to one type of TCI mode information.

5. The method of claim 2, wherein TCI mode information corresponding to the TCI state information is included in the first message and includes:

the first message includes a TCI mode information field, where the TCI mode information field is used to indicate the TCI mode information; or alternatively, the process may be performed,

the first message includes a TCI field, and a portion of bits in the TCI field are used to indicate the TCI mode information.

6. The method according to any one of claims 1-5, wherein the first message is configured to instruct a terminal to transmit according to the TCI status information, and includes:

The first message is used for indicating the terminal to perform single access point sTRP transmission or multi-access point mTRP transmission according to the at least one TCI state information, and the at least one TCI state information is used for indicating to perform uplink transmission and/or downlink transmission.

7. The method of claim 6, wherein the first message is configured to instruct the terminal to perform single access point srp transmission or multiple access point mTRP transmission according to the at least one TCI state information, and comprises:

when the number of the TCI state information used for uplink transmission/downlink transmission is one in the TCI state information included in the first message, the first message is used for indicating the terminal to perform the srp transmission or the mTRP transmission according to the TCI state information which takes effect after the previous indication, and after the TCI state information in the first message takes effect, the next srp transmission is performed according to the TCI state information in the first message; or alternatively

And when the number of the TCI state information for uplink transmission/downlink transmission in the TCI state information included in the first message is at least two, the first message is used for indicating the terminal to perform mTRP transmission according to the TCI state information in the first message.

8. The method according to claim 7, wherein the first message is configured to instruct the terminal to perform an srp transmission or a mTRP transmission according to TCI status information validated after a previous instruction, and includes:

if the number of the TCI state information used for uplink transmission/downlink transmission in the TCI state information which takes effect after the previous indication is one, the first message is used for indicating the terminal to perform sTRP transmission according to the TCI state information which takes effect after the previous indication;

and if the number of the TCI state information for uplink transmission/downlink transmission in the TCI state information which takes effect after the previous indication is at least two, the first message is used for indicating the terminal to perform mTRP transmission according to the TCI state information which takes effect after the previous indication.

9. The method of any one of claims 1-5, further comprising: transmitting TRP indication domain information to a terminal, the TRP indication domain information being used for indicating to perform an srp transmission or a mTRP transmission, the TRP indication domain information being transmitted in the first message or being transmitted independently of the first message; the first message is used for indicating the terminal to perform sTRP transmission or mTRP transmission according to the TRP indication domain information and the at least one TCI state information.

10. The method of claim 9, wherein the first message for instructing the terminal to perform an srp transmission or a mTRP transmission according to the TRP indication field information and the at least one TCI status information comprises:

the first message is used for indicating the terminal to perform sTRP transmission or mTRP transmission according to the TRP indication domain information and TCI state information which takes effect after the previous indication, and performing the next sTRP transmission or the next mTRP transmission according to the TCI state information in the first message after the TCI state information in the first message takes effect; or alternatively, the process may be performed,

the first message is used for indicating the terminal to perform sTRP transmission or mTRP transmission according to the TRP indication domain information and at least one TCI state information in the first message.

11. The method according to claim 10, wherein the first message is configured to instruct the terminal to perform an srp transmission or a mTRP transmission according to the TRP indication field information and TCI status information validated after a previous indication, and includes:

when the TRP indication domain information indicates mTRP transmission, if the number of TCI state information for uplink transmission/downlink transmission in TCI state information effective after the previous indication is one, the first message is used for indicating the terminal to perform sTRP transmission according to the TCI state information effective after the previous indication; or alternatively

When the TRP indication domain information indicates mTRP transmission, if the number of TCI state information for uplink transmission/downlink transmission in TCI state information effective after the previous indication is at least two, the first message is used for indicating the terminal to perform mTRP transmission according to the TCI state information effective after the previous indication; or alternatively

When the TRP indication domain information indicates to perform sTRP transmission, if the number of TCI state information used for uplink transmission/downlink transmission in TCI state information effective after the previous indication is one, the first message is used for indicating the terminal to perform sTRP transmission according to the TCI state information effective after the previous indication; or alternatively

When the TRP indication domain information indicates that the sTRP transmission is performed, if the number of TCI state information for uplink transmission/downlink transmission in the TCI state information effective after the previous indication is at least two, the TRP indication domain information is also used for indicating a terminal to select one target TCI state information determined to be currently used from the at least two TCI state information for uplink transmission/downlink transmission, and the sTRP transmission is performed through the target TCI state information.

12. The method of claim 10, wherein the first message for indicating the terminal to perform the srp transmission or the mTRP transmission according to the TRP indication field information and at least one TCI status information in the first message comprises:

When the TRP indication domain information indicates mTRP transmission, the first message is used for indicating a terminal to perform mTRP transmission according to TCI state information in the first message; or alternatively

When the TRP indication domain information indicates to perform the TRP transmission, if the number of TCI state information for uplink transmission/downlink transmission is one in the TCI state information included in the first message, the first message is used for indicating the terminal to perform the TRP transmission according to the TCI state information in the first message; or alternatively

When the TRP indication domain information indicates to perform the srp transmission, if the number of the TCI state information for uplink transmission/downlink transmission in the TCI state information included in the first message is at least two, the TRP indication domain information is further used for indicating a terminal to select one target TCI state information determined to be currently used from the at least two TCI state information for uplink transmission/downlink transmission, and perform the srp transmission through the target TCI state information.

13. The method according to claim 10, wherein in case the first message is used to instruct the terminal to perform an srp transmission or a mTRP transmission according to the TRP indication field information and at least one TCI status information in the first message, if a time slot interval between the first time instant and the second time instant is less than or equal to a threshold value, the srp transmission or the mTRP transmission indicated by the first message is performed according to one or more of the following TCI status information:

The network device sending one or more TCI status information employed by the first message;

one or more TCI status information in an active state at the start of the srp transmission or mTRP transmission indicated by the first message;

TCI state information corresponding to a predefined code point among TCI state information indicating activation by the network device;

the first time is the time when the terminal receives the first message, and the second time is the time when the terminal receives the sTRP transmission or the mTRP transmission indicated by the first message.

14. The method of claim 9, wherein the number of TRP indication field information is at least two, each TRP indication field information corresponding to a different channel and/or reference signal.

15. The method according to any one of claims 10-13, further comprising:

and receiving an acknowledgement message for the first message, wherein the acknowledgement message is sent by the terminal after receiving the first message, and the acknowledgement message is used for determining the effective time of the TCI state information indicated by the first message.

16. The method according to any one of claims 1-5, wherein obtaining transmission capability information of the terminal comprises:

And receiving a third message sent by the terminal, wherein the third message comprises the transmission capability information.

17. The beam indication method is characterized by being applied to a terminal and comprising the following steps:

and transmitting according to the TCI state information.

18. The method as recited in claim 17, further comprising:

acquiring TCI mode information corresponding to the TCI state information from the first message, or receiving TCI mode information corresponding to the TCI state information which is sent by the network equipment independently of the first message, wherein the TCI mode information corresponding to the TCI state information is used for indicating that the TCI state information is applied to uplink transmission and/or downlink transmission;

19. The method of claim 18, wherein receiving TCI mode information corresponding to the TCI state information from the network device comprises:

receiving TCI mode information corresponding to the TCI state information sent by the network equipment by using one signaling or at least two signaling;

20. The method of claim 19, wherein receiving TCI mode information corresponding to the TCI state information transmitted by the network device using one signaling or using at least two signaling, comprises:

receiving one or at least two second messages sent by the network equipment;

21. The method of claim 18, wherein the first message includes a TCI mode information field, the TCI mode information field being used to indicate the TCI mode information; or the first message includes a TCI field, and a part of bits in the TCI field are used to indicate the TCI mode information.

22. The method according to any of claims 17-21, wherein transmitting according to the TCI state information comprises:

and carrying out single access point sTRP transmission or multi-access point mTRP transmission according to the at least one TCI state information, wherein the at least one TCI state information is used for indicating to carry out uplink transmission and/or downlink transmission.

23. The method of claim 22, wherein the single access point, srp, transmission or the multiple access point, mTRP, transmission based on the at least one TCI state information comprises:

when the number of TCI state information for uplink transmission/downlink transmission is one in TCI state information included in the first message, performing sTRP transmission or mTRP transmission according to TCI state information which takes effect after the previous indication, and performing next sTRP transmission according to TCI state information in the first message after the TCI state information in the first message takes effect; or alternatively

And when the number of the TCI state information for uplink transmission/downlink transmission in the TCI state information included in the first message is at least two, mTRP transmission is performed according to the TCI state information in the first message.

24. The method of claim 23, wherein the signaling of the srp or the mTRP based on the TCI status information validated after the previous indication comprises:

if the number of TCI state information for uplink transmission/downlink transmission in TCI state information which takes effect after the previous indication is one, sTRP transmission is carried out according to the TCI state information which takes effect after the previous indication;

and if the number of the TCI state information for uplink transmission/downlink transmission in the TCI state information which takes effect after the previous indication is at least two, mTRP transmission is carried out according to the TCI state information which takes effect after the previous indication.

25. The method according to any one of claims 17-21, further comprising:

acquiring TRP indication domain information from the first message, or receiving TRP indication domain information which is sent by the network equipment independently of the first message and is used for indicating to perform sTRP transmission or mTRP transmission;

transmitting according to the TCI state information, including:

and carrying out sTRP transmission or mTRP transmission according to the TRP indication domain information and the at least one TCI state information.

26. The method of claim 25, wherein the signaling of the TRP or the mTRP based on the TRP indication field information and the at least one TCI status information comprises:

Carrying out sTRP transmission or mTRP transmission according to the TRP indication domain information and TCI state information which takes effect after the previous indication, and carrying out the next sTRP transmission or the next mTRP transmission according to the TCI state information in the first message after the TCI state information in the first message takes effect; or alternatively, the process may be performed,

and carrying out sTRP transmission or mTRP transmission according to the TRP indication domain information and at least one TCI state information in the first message.

27. The method of claim 26, wherein the signaling of the TRP or the mTRP based on the TRP indication field information and the TCI status information validated after the previous indication comprises:

when the TRP indication domain information indicates mTRP transmission, if the number of TCI state information for uplink transmission/downlink transmission in TCI state information effective after the previous indication is one, sTRP transmission is performed according to the TCI state information effective after the previous indication; or alternatively

When the TRP indication domain information indicates mTRP transmission, if the number of TCI state information for uplink transmission/downlink transmission in TCI state information effective after the previous indication is at least two, mTRP transmission is performed according to the TCI state information effective after the previous indication; or alternatively

When the TRP indication domain information indicates to perform sTRP transmission, if the number of TCI state information for uplink transmission/downlink transmission in TCI state information effective after the previous indication is one, performing sTRP transmission according to the TCI state information effective after the previous indication; or alternatively

When the TRP indication domain information indicates to perform sTRP transmission, if the number of TCI state information for uplink transmission/downlink transmission in TCI state information effective after the previous indication is at least two, selecting one target TCI state information determined to be currently used from the at least two TCI state information for uplink transmission/downlink transmission, and performing sTRP transmission through the target TCI state information.

28. The method of claim 27, wherein the signaling of the TRP or the mTRP based on the TRP indication field information and at least one TCI status information in the first message comprises:

when the TRP indication domain information indicates mTRP transmission, mTRP transmission is performed according to TCI state information in the first message; or alternatively

When the TRP indication domain information indicates to perform sTRP transmission, if the number of TCI state information for uplink transmission/downlink transmission in the TCI state information included in the first message is one, performing sTRP transmission according to the TCI state information in the first message; or alternatively

When the TRP indication domain information indicates that the srp transmission is performed, if the number of the TCI state information for uplink transmission/downlink transmission in the TCI state information included in the first message is at least two, selecting one target TCI state information determined to be currently used from the at least two TCI state information for uplink transmission/downlink transmission, and performing the srp transmission through the target TCI state information.

29. The method according to claim 27, wherein in case the first message is used to instruct the terminal to perform an srp transmission or a mTRP transmission according to the TRP indication field information and at least one TCI status information in the first message, if a time slot interval between the first time instant and the second time instant is less than or equal to a threshold value, the srp transmission or the mTRP transmission indicated by the first message is performed according to one or more of the following TCI status information:

30. The method of claim 25 wherein the number of TRP indication field information is at least two, each TRP indication field information corresponding to a different channel and/or reference signal.

31. The method according to any one of claims 17-21, further comprising:

after receiving the first message, sending an acknowledgement message for the first message to the network device, wherein the acknowledgement message is used for determining the effective time of the TCI state information indicated by the first message.

32. The method according to any one of claims 17-21, further comprising:

and sending a third message to the network equipment, wherein the third message comprises transmission capability information of the terminal.

33. A beam pointing apparatus, for use with a network device, comprising:

34. A beam pointing apparatus, applied to a terminal, comprising:

35. A network device comprising a memory, a transceiver, and a processor:

acquiring transmission capability information of a terminal;

36. A terminal comprising a memory, a transceiver, and a processor:

and transmitting according to the TCI state information.

37. A computer readable storage medium having stored therein computer executable instructions which when executed by a processor are adapted to implement the beam pointing method of any of claims 1-32.