CN116530183A

CN116530183A - Beam management method, terminal equipment and network equipment

Info

Publication number: CN116530183A
Application number: CN202180079512.XA
Authority: CN
Inventors: 林雪; 王淑坤
Original assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Current assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority date: 2021-01-13
Filing date: 2021-01-13
Publication date: 2023-08-01
Also published as: WO2022151085A1

Abstract

The application relates to a beam management method, terminal equipment and network equipment, wherein the method comprises the following steps: in the small data transmission SDT process, the terminal device sends first indication information to the network device, where the first indication information includes information of the first beam or information of the synchronization signal block SSB, if the first condition is met. By using the method and the device, beam management in the SDT process can be realized.

Description

Beam management method, terminal equipment and network equipment

Technical Field

The present invention relates to the field of communications, and more particularly, to a beam management method, a terminal device, and a network device.

Background

In the fifth generation mobile communication 5G New Radio (NR) system, radio resource control (Radio Resource Control, RRC) states of the terminal include three states, respectively: an RRC IDLE state (rrc_idle), an RRC INACTIVE state (rrc_inactive), and an RRC CONNECTED state (rrc_connected). The terminal in the RRC_INACTIVE state does not support data transmission, and the terminal in the RRC_INACTIVE state can quickly recover connection when data to be transmitted arrives, and then release the data to the INACTIVE state after the data transmission is completed. Obviously, for UEs with small data size and low transmission frequency, such a transmission mechanism will result in unnecessary power consumption and signaling overhead. For this reason, there are many problems to be solved in the research of small data transmission (Small Data Transmission, SDT) mechanism in rrc_inactive state, for example, in NR, there may be multiple small packet data transmissions in the same SDT process, the transmission time may be long, there may be a requirement for beam change during the transmission time, and how to perform beam management in SDT process is one of the important problems to be solved.

Disclosure of Invention

In view of this, the embodiments of the present application provide a beam management method, a terminal device, and a network device, which may be used to implement beam management in an SDT process.

The embodiment of the application provides a beam management method, which is applied to terminal equipment and comprises the following steps:

in the small data transmission SDT process, the terminal device sends first indication information to the network device, where the first indication information includes information of the first beam or information of the synchronization signal block SSB, if the first condition is met.

The embodiment of the application provides a beam management method, which is applied to network equipment and comprises the following steps:

in the SDT process, the network equipment receives first indication information sent by the terminal equipment, wherein the first indication information comprises information of a first wave beam or information of SSB.

The embodiment of the application also provides a terminal device, which comprises:

and the sending module is used for sending first indication information to the network equipment by the terminal equipment in the SDT process under the condition of meeting the first condition, wherein the first indication information comprises information of a first wave beam or information of a synchronous signal block SSB.

The embodiment of the application also provides a network device, which comprises:

and the receiving module is used for receiving first indication information sent by the terminal equipment in the SDT process by the network equipment, wherein the first indication information comprises information of a first wave beam or information of SSB.

The embodiment of the application also provides a terminal device, which comprises: a processor and a memory for storing a computer program, the processor invoking and running the computer program stored in the memory for performing the method as described above.

The embodiment of the application also provides a network device, which comprises: a processor and a memory for storing a computer program, the processor invoking and running the computer program stored in the memory for performing the method as described above.

The embodiment of the application also provides a chip, which comprises: and a processor for calling and running the computer program from the memory, so that the device on which the chip is mounted performs the method as described above.

Embodiments of the present application also provide a computer-readable storage medium storing a computer program, wherein the computer program causes a computer to perform the method as described above.

Embodiments of the present application also provide a computer program product comprising computer program instructions, wherein the computer program instructions cause a computer to perform the method as described above.

Embodiments of the present application also provide a computer program that causes a computer to perform the method as described above.

According to the embodiment of the application, in the SDT transmission process, the terminal equipment can send the indication information to the network equipment, the indication information comprises the beam information or SSB information, and based on the indication information, the terminal equipment and the network equipment can change the current beam into the indicated beam, so that the beam change requirement in the SDT continuous transmission process is met, and the beam management in the SDT process is realized.

Drawings

Fig. 1 is a schematic diagram of a communication system architecture according to an embodiment of the present application.

Fig. 2 is a schematic diagram of a small data transmission procedure in an LTE system.

Fig. 3 is a schematic diagram of a transmission flow of pre-configured uplink resources in an LTE system.

Fig. 4 is a schematic diagram showing the effect of a beam scanning mechanism in an NR system.

Fig. 5 is a schematic diagram showing the effect of a synchronization signal block in a synchronization signal burst in an NR system.

Fig. 6 is a schematic diagram showing the effect of a synchronization signal burst period in an NR system.

Fig. 7 is a flowchart of a terminal-side beam management method according to an embodiment of the present application.

Fig. 8 is a flowchart of a network side beam management method according to an embodiment of the present application.

Fig. 9 is a schematic structural block diagram of a terminal device of an embodiment of the present application.

Fig. 10 is a schematic block diagram of a network device according to an embodiment of the present application.

Fig. 11 is a schematic block diagram of a communication device of an embodiment of the present application.

Fig. 12 is a schematic block diagram of a chip of an embodiment of the present application.

Fig. 13 is a schematic block diagram of a communication system of an embodiment of the present application.

Detailed Description

The technical solutions in the embodiments of the present application will be described below with reference to the drawings in the embodiments of the present application.

The technical solution of the embodiment of the application can be applied to various communication systems, for example: global system for mobile communications (Global System of Mobile communication, GSM), code division multiple access (Code Division Multiple Access, CDMA) system, wideband code division multiple access (Wideband Code Division Multiple Access, WCDMA) system, general packet Radio service (General Packet Radio Service, GPRS), long term evolution (Long Term Evolution, LTE) system, advanced long term evolution (Advanced long term evolution, LTE-a) system, new Radio (NR) system, evolved system of NR system, LTE-based access to unlicensed spectrum, LTE-U) system over unlicensed spectrum, NR (NR-based access to unlicensed spectrum, NR-U) system over unlicensed spectrum, non-terrestrial communication network (Non-Terrestrial Networks, NTN) system, universal mobile communication system (Universal Mobile Telecommunication System, UMTS), wireless local area network (Wireless Local Area Networks, WLAN), wireless fidelity (Wireless Fidelity, wiFi), fifth Generation communication (5 th-Generation, 5G) system, or other communication system, etc.

Generally, the number of connections supported by the conventional communication system is limited and easy to implement, however, with the development of communication technology, the mobile communication system will support not only conventional communication but also, for example, device-to-Device (D2D) communication, machine-to-machine (Machine to Machine, M2M) communication, machine type communication (Machine Type Communication, MTC), inter-vehicle (Vehicle to Vehicle, V2V) communication, or internet of vehicles (Vehicle to everything, V2X) communication, etc., and the embodiments of the present application may also be applied to these communication systems.

Optionally, the communication system in the embodiment of the present application may be applied to a carrier aggregation (Carrier Aggregation, CA) scenario, a dual connectivity (Dual Connectivity, DC) scenario, and a Stand Alone (SA) fabric scenario.

Embodiments of the present application describe various embodiments in connection with network devices and terminal devices, where a terminal device may also be referred to as a User Equipment (UE), access terminal, subscriber unit, subscriber station, mobile station, remote terminal, mobile device, user terminal, wireless communication device, user agent, user Equipment, or the like.

The terminal device may be a Station (ST) in a WLAN, may be a cellular telephone, a cordless telephone, a session initiation protocol (Session Initiation Protocol, SIP) phone, a wireless local loop (Wireless Local Loop, WLL) station, a personal digital assistant (Personal Digital Assistant, PDA) device, a handheld device with wireless communication capabilities, a computing device or other processing device connected to a wireless modem, a vehicle device, a wearable device, a terminal device in a next generation communication system such as an NR network, or a terminal device in a future evolved public land mobile network (Public Land Mobile Network, PLMN) network, etc.

In embodiments of the present application, the terminal device may be deployed on land, including indoors or outdoors, hand-held, wearable or vehicle-mounted; can also be deployed on the water surface (such as ships, etc.); but may also be deployed in the air (e.g., on aircraft, balloon, satellite, etc.).

In the embodiment of the present application, the terminal device may be a Mobile Phone (Mobile Phone), a tablet computer (Pad), a computer with a wireless transceiving function, a Virtual Reality (VR) terminal device, an augmented Reality (Augmented Reality, AR) terminal device, a wireless terminal device in industrial control (industrial control), a wireless terminal device in unmanned driving (self driving), a wireless terminal device in remote medical (remote medical), a wireless terminal device in smart grid (smart grid), a wireless terminal device in transportation security (transportation safety), a wireless terminal device in smart city (smart city), or a wireless terminal device in smart home (smart home), and the like.

By way of example, and not limitation, in embodiments of the present application, the terminal device may also be a wearable device. The wearable device can also be called as a wearable intelligent device, and is a generic name for intelligently designing daily wear by applying wearable technology and developing wearable devices, such as glasses, gloves, watches, clothes, shoes and the like. The wearable device is a portable device that is worn directly on the body or integrated into the clothing or accessories of the user. The wearable device is not only a hardware device, but also can realize a powerful function through software support, data interaction and cloud interaction. The generalized wearable intelligent device includes full functionality, large size, and may not rely on the smart phone to implement complete or partial functionality, such as: smart watches or smart glasses, etc., and focus on only certain types of application functions, and need to be used in combination with other devices, such as smart phones, for example, various smart bracelets, smart jewelry, etc. for physical sign monitoring.

In this embodiment of the present application, the network device may be a device for communicating with a mobile device, where the network device may be an Access Point (AP) in WLAN, a base station (Base Transceiver Station, BTS) in GSM or CDMA, a base station (NodeB, NB) in WCDMA, an evolved base station (Evolutional Node B, eNB or eNodeB) in LTE, a relay station or an Access Point, a vehicle device, a wearable device, a network device (gNB) in NR network, or a network device in a PLMN network of future evolution, etc.

By way of example and not limitation, in embodiments of the present application, a network device may have a mobile nature, e.g., the network device may be a mobile device. Alternatively, the network device may be a satellite, a balloon station. For example, the satellite may be a Low Earth Orbit (LEO) satellite, a medium earth orbit (medium earth orbit, MEO) satellite, a geosynchronous orbit (geostationary earth orbit, GEO) satellite, a high elliptical orbit (High Elliptical Orbit, HEO) satellite, or the like. Alternatively, the network device may be a base station disposed on land, in a water area, or the like.

In this embodiment of the present application, a network device may provide a service for a cell, where a terminal device communicates with the network device through a transmission resource (e.g., a frequency domain resource, or a spectrum resource) used by the cell, where the cell may be a cell corresponding to a network device (e.g., a base station), and the cell may belong to a macro base station, or may belong to a base station corresponding to a Small cell (Small cell), where the Small cell may include: urban cells (Metro cells), micro cells (Micro cells), pico cells (Pico cells), femto cells (Femto cells) and the like, and the small cells have the characteristics of small coverage area and low transmitting power and are suitable for providing high-rate data transmission services.

Fig. 1 schematically illustrates one network device 1100 and two terminal devices 1200, alternatively, the wireless communication system 1000 may include a plurality of network devices 1100, and the coverage area of each network device 1100 may include other numbers of terminal devices, which are not limited by the embodiments of the present application. Optionally, the wireless communication system 1000 shown in fig. 1 may further include other network entities such as a mobility management entity (Mobility Management Entity, MME), an access and mobility management function (Access and Mobility Management Function, AMF), and the embodiment of the present application is not limited thereto.

It should be understood that the terms "system" and "network" are often used interchangeably herein. The term "and/or" is used herein to describe association of associated objects, for example, to indicate that there may be three relationships between the associated objects, for example, a and/or B, may indicate: three cases of A alone, A and B together, and B alone exist. The character "/" herein generally indicates that the context associated object is an "or" relationship. In the description of the embodiments of the present application, the term "corresponding" may indicate that there is a direct correspondence or an indirect correspondence between the two, or may indicate that there is an association between the two, or may indicate a relationship between the two and the indicated, configured, or the like.

In order to clearly illustrate the ideas of the embodiments of the present application, a brief description will be first made of the processing procedure of inactive state data transmission in a communication system.

(1) EDT for small data transmission in LTE systems

Referring to fig. 2, in the LTE system, EDT (Early Data Transmission), i.e., small data transmission (sometimes also referred to as early data transmission or early data transmission, etc.), during which the UE may remain in an idle (idle) state or a sleep (idle) state or a deactivated (inactive) state all the time, transmission of uplink and/or downlink small data packets may be completed. For the EDT process, the UE may complete the transmission of the small packet without entering the connected state. In configuration, the network can configure a maximum transmission block size (TB size) allowed to be transmitted by the current network on a system information block SIB2, the UE can judge the data quantity to be transmitted by the UE, and if the data quantity to be transmitted is smaller than the maximum TB size, the UE can initiate EDT transmission; otherwise, the UE enters a connection state to transmit data using a normal connection establishment procedure.

(2) PUR transmission for pre-configured uplink resources

Referring to fig. 3, in LTE, for narrowband internet of things (Narrow Band Internet of Things, NB-IoT) and enhanced Machine-type communication (eMTC) scenarios, a method for data transmission using preconfigured uplink resources (Preconfigured Uplink Resource, PUR) in the idle state is introduced. In general, PUR is only valid in the currently configured cell, i.e. when the UE detects a cell change and initiates a random access in the new cell, the UE needs to release the PUR of the original cell configuration. The PUR transmission procedure is similar to the EDT transmission described above, except that the procedure of transmitting a preamble acquisition Timing Advance (TA) and an uplink grant (UL grant) is mainly omitted.

(3) Beam management in NR systems

The frequency spectrum in the mobile communication technology is a scarce resource, the usable range of the low frequency band is small, and the frequency spectrum is occupied by the existing communication system for a long time. With the development of the subsequent mobile communication internet service, the requirements of wireless communication and the requirements of transmission rate are higher and higher, so that more frequency bands need to be mined to support the development of future mobile communication. The 5G supports millimeter wave frequency bands in the FR2 frequency range (24.25 GHz-52.6 GHz) so as to solve the problem of insufficient wireless frequency bands. However, the propagation characteristics of millimeter waves are not ideal, the propagation loss is large, and the signals are easily blocked, so a Beam scanning (Beam scanning) mechanism is introduced, and referring to fig. 4, to meet the coverage requirement, it may be sometimes understood that the space is replaced by time and the coverage is replaced by space. In beam sounding, a synchronization signal needs to be transmitted in each beam direction, and the synchronization signal with reference to fig. 5,5G is given in the form of a Synchronization Signal Block (SSB), including PSS, SSs, and PBCH. With further reference to fig. 6,5G, the synchronization signal occurs periodically in the time domain in the form of a synchronization burst set (SS burst set). The number of the beams actually transmitted by each cell is determined through network configuration, wherein the frequency point of the cell determines the maximum number of the beams which can be configured, and table 1 lists the relationship between the maximum number of SSB and the frequency.

TABLE 1

Frequency range (Frequency range)	Maximum number of SSB L
At most 3 (2.4) GHz	4
3(2.4)GHz—6GHz	8
6GHz—52.6GHz	64

In the initial access process, the UE determines effective beams to receive a physical downlink shared channel (Physical Downlink Shared Channel, PDSCH) and a physical downlink control channel (Physical Downlink Control Channel, PDCCH) through a random access process, and the UE always uses the beams determined by the initial access to receive data before transmitting configuration indication (transceiver configuration indicator, TCI) state configuration and TCI state activation command in an RRC configuration (RRCRECONfigure) message is received.

In the 5G NR system, radio resource control (Radio Resource Control, RRC) states include three states, respectively: rrc_idle (RRC IDLE state), rrc_inactive (RRC INACTIVE state), rrc_connected (RRC CONNECTED state). Wherein the rrc_inactive state is a new state introduced by the 5G system from the energy saving point of view, for the UE in the rrc_inactive state, radio bearers and all radio resources are released, while the UE side and the base station side keep the UE still accessing the context in order to quickly restore the RRC connection, the network typically keeps the UE in the rrc_inactive state with infrequent data transmission. That is, the UE in the rrc_inactive state does not support data transmission in the past, and when uplink (MO) or downlink (Mobile Terminated, MT) data arrives, the UE needs to restore the connection, and releases the data to the INACTIVE state after the data transmission is completed. Obviously, for UEs with small data size and low transmission frequency, such a transmission mechanism may cause unnecessary power consumption and signaling overhead.

There are two main directions of research on small data transmission (Small Data Transmission, SDT) mechanisms under rrc_inactive, namely SDT based on random access channel (Random Access Channel, RACH), and SDT based on Configured Grant (CG), and two types of schemes can refer to EDT and PUR transmission procedures in LTE described above to some extent, but there are still many problems to be solved, for example, there is a concept of beam in LTE and only one transmission (one shot of data transmission) is supported; unlike LTE, in NR, SDT may support continuous uplink and downlink data transmission in the same process, for example, there may be multiple packet data transmission in the same SDT process, and the duration may be long, so if the beam signal of initial access is poor, there may be a requirement for beam transformation in the transmission process, and how to solve the problem of beam variation in the SDT process is one of the important problems to be solved by SDT technology.

To this end, an embodiment of the present application provides a beam management method, applied to a terminal device, referring to fig. 7, including:

s101, in the SDT procedure, the terminal device sends first indication information to the network device, where the first indication information includes information of the first beam or information of the SSB, if the first condition is met.

According to the embodiment of the application, when beam transformation is needed in the SDT transmission process, the terminal equipment can send the indication information to the network equipment, wherein the indication information comprises the beam information or SSB information, and based on the indication information, the terminal equipment and the network equipment can change the current beam into the indicated beam, so that the beam change requirement in the SDT continuous transmission process is met, the beam management in the SDT process is realized, and the high-performance data transmission is ensured.

Correspondingly, the embodiment of the application also provides a beam management method, which is applied to the network equipment, and referring to fig. 8, the method comprises the following steps:

s201, in the SDT process, the network device receives first indication information sent by the terminal device, where the first indication information includes information of the first beam or information of the SSB.

According to the embodiment of the application, in the SDT process, the network equipment can receive the indication information sent by the terminal equipment, the indication information comprises the beam information or SSB information, the indication information can be used for updating the beam by the network equipment, the beam change requirement in the SDT continuous transmission process is solved, the beam management in the SDT process is realized, and the reliable transmission of data is ensured.

The embodiments of the present application may be implemented in various ways, and are described in detail below.

● Mode 1: the indication information comprises beam information

In an embodiment of the present application, optionally, if the first indication information includes information of a first beam, the terminal device may perform at least one of the following processes:

(1) after the first indication information is sent, the terminal equipment adopts a beam corresponding to the first beam to carry out data transmission;

(2) after the first indication information is sent, the terminal equipment receives second indication information sent by the network equipment, wherein the second indication information is used for confirming beam change, and after the second indication information is received, the terminal equipment adopts a beam corresponding to the first beam to carry out data transmission.

Correspondingly, in an embodiment of the present application, optionally, if the first indication information includes information of a first beam, the network device may perform at least one of the following processes:

(1) after receiving the first indication information, the network equipment adopts the first wave beam to transmit data;

(2) after receiving the first indication information, the network device sends second indication information to the terminal device, wherein the second indication information is used for confirming beam change, and after sending the second indication information, the network device adopts the first beam to conduct data transmission.

In an embodiment of the present application, optionally, the first beam is a currently optimal beam or the first beam is better than a beam currently used by the terminal device.

In an embodiment of the present application, optionally, before the terminal device sends the first indication information to the network device, the terminal device measures the SSB in the SDT procedure, wherein the first beam is determined by measuring the SSB.

In the embodiment of the present application, optionally, the first indication information may be carried by a media access control layer control unit MAC CE in a physical uplink shared channel PUSCH; and/or, the second indication information may be carried by a MAC CE in a physical downlink shared channel PDSCH.

In an embodiment of the present application, optionally, the information of the first beam includes SSB index corresponding to the first beam.

● Mode 2: the indication information comprises SSB information

In an embodiment of the present application, optionally, if the first indication information includes information of SSB, the terminal device performs the following processing:

after the first indication information is sent, the terminal equipment receives third indication information sent by the network equipment, wherein the third indication information comprises information of a second wave beam; and the terminal equipment adopts the beam corresponding to the second beam to carry out data transmission.

Correspondingly, in an embodiment of the present application, optionally, if the first indication information includes information of SSB, the network device performs the following processing:

after receiving the first indication information, the network equipment determines a second wave beam according to the SSB information; the network equipment sends third indication information to the terminal equipment, wherein the third indication information comprises information of the second wave beam; and the network equipment adopts the second wave beam to carry out data transmission.

In an embodiment of the present application, optionally, the information of the SSB includes at least one of: reference signal received power, RSRP, of one or more SSB, one or more SSB index, a list comprising a plurality of SSB index ordered.

In an embodiment of the present application, optionally, before the terminal device sends the first indication information to the network device, the terminal device measures the SSB in the SDT procedure.

In an embodiment of the present application, optionally, the first indication information is carried by at least one of: MAC CE in PUSCH, radio resource control RRC, uplink control information UCI; and/or, the third indication information is carried by a MAC CE or DCI in the PDSCH.

In an embodiment of the present application, optionally, the second beam is a currently optimal beam or the second beam is better than a beam currently used by the network device.

In an embodiment of the present application, optionally, the information of the second beam includes SSB index corresponding to the second beam.

In the above-described modes 1 and 2, optionally, the first condition may include at least one of:

the terminal device determines that the currently optimal beam is different from the currently used beam;

the duration of the use of the current beam by the terminal device is greater than or equal to the first threshold.

By utilizing at least one embodiment of the present application, in the SDT transmission process, the terminal and the network can determine a good beam and update the beam, so that the beam transformation in the SDT process can be realized, and the data transmission reliability is improved.

The implementation manner of the beam management method according to the embodiment of the present application is described above through the embodiment, and the specific implementation process of the embodiment of the present application is described below through a plurality of specific examples.

Example 1

In this embodiment, the UE feeds back to the network an index corresponding to the downlink beam, and the implementation procedure is described in detail below.

1. For the UE supporting the SDT function, under the condition that the SDT execution condition is met, the UE selects an appropriate beam to initiate the SDT process according to the measurement result. The SDT procedure may be a RACH-based SDT or a CG-based SDT. The UE receives the PDCCH and/or PDSCH using the selected beam.

2. If the SDT transmission is not finished when the period arrives in the next SSB burst, the UE executes the subsequent uplink or downlink SDT based on the network dynamic scheduling, measures the SSB, and determines the best downlink beam according to the SSB measurement result.

3. If the best beam determined according to the latest measurement result is different from the currently used beam or the time for using the current beam exceeds the preset time length, the UE comprises a first MAC CE in the effective Uplink (UL) PUSCH transmission, wherein the first MAC CE is used for indicating the index of the best downlink beam determined by the network according to the current measurement result.

4. After the UE sends out the first MAC CE, the behaviors of the UE and the network side may include the following two cases:

behavior 1: after the UE transmits the first MAC CE, the UE uses a new beam to receive PDCCH and PDSCH; after receiving the first MAC CE, the network adopts a new beam to transmit PDCCH and PDSCH;

behavior 2: after receiving the first MAC CE, the network sends a second MAC CE to the UE, wherein the second MAC CE is used for confirming the beam change; after the network transmits the second MAC CE, the network adopts a new beam to transmit PDCCH and PDSCH; after receiving the second MAC CE, the UE receives the PDCCH and PDSCH using the new beam.

Example 2

In this embodiment, the UE feeds back a downlink beam measurement list to the network, and the implementation procedure is described in detail below.

2. If the SDT transmission is not finished when the period arrives in the next SSB burst, the UE executes the subsequent uplink or downlink SDT based on the network dynamic scheduling, and the UE measures the SSB.

3. If the best beam determined according to the latest measurement result is different from the currently used beam or the current beam is used for more than a preset time length, the UE comprises at least one of the following information in the effective Uplink (UL) PUSCH transmission: a first MAC CE, RRC signaling, UCI (transmitted through PUCCH), the first MAC CE or the RRC message or the UCI being used to report SSB measurement results.

Wherein the SSB measurement may be at least one of:

RSRP of one or more SSBs;

index of one or more SSBs;

SSB list containing SSB index arranged from good to bad.

4. After the UE sends out SSB measurements, the actions of the UE and the network side may include:

after receiving the SSB measurement result, the network sends a second MAC CE or DCI to the UE, where the second MAC CE or DCI is used to indicate the SSB index of the changed beam. After the network side transmits the second MAC CE, a new beam is adopted to transmit the PDCCH and the PDSCH; after receiving the second MAC CE or DCI, the UE uses the new beam to receive the PDCCH and PDSCH.

By utilizing at least one embodiment of the present application, during the SDT transmission process, the UE may select a beam reporting network side according to the measurement result, for performing a beam update; the UE can also report the SSB measurement result corresponding to the good beam to the network side for beam update; correspondingly, the network side can determine the good beam through the MAC CE mode and update the beam. Based on the method, the beam update in the SDT process can be realized, the data transmission reliability is improved, and the system performance is improved as a whole.

The specific arrangements and implementations of the embodiments of the present application have been described above from a variety of angles by way of various embodiments. Corresponding to the processing method of at least one embodiment described above, the embodiment of the present application further provides a terminal device 100, referring to fig. 9, which includes:

The sending module 110 is configured to send, in the SDT process, first indication information to the network device when the first condition is met, where the first indication information includes information of the first beam or information of the synchronization signal block SSB.

Optionally, the first condition includes: the terminal equipment determines that the current optimal beam is different from the current beam; or alternatively, the process may be performed,

the first condition includes: the duration of the current beam used by the terminal equipment is greater than or equal to a first threshold value.

Optionally, the terminal device 100 further includes: and the first transmission module is used for carrying out data transmission by adopting a beam corresponding to the first beam after the first indication information is sent under the condition that the first indication information comprises the information of the first beam.

Optionally, the terminal device 100 further includes: a receiving module, configured to, when the first indication information includes information of a first beam, receive second indication information sent by the network device after sending the first indication information, where the second indication information is used to confirm beam change; and the second transmission module is used for carrying out data transmission by adopting the beam corresponding to the first beam after receiving the second indication information.

Optionally, the first beam is the currently optimal beam or the first beam is better than the beam currently used by the terminal device.

Optionally, the terminal device 100 further includes: and the measurement module is used for measuring the SSB in the SDT process before the terminal equipment sends first indication information to the network equipment, wherein the first beam is determined by measuring the SSB.

Optionally, the first indication information is carried by a MAC CE in PUSCH; and/or, the second indication information is carried by a MAC CE in the PDSCH.

Optionally, the information of the first beam includes SSB index corresponding to the first beam.

Optionally, the terminal device 100 further includes: a receiving module, configured to receive, when the first indication information includes SSB information, third indication information sent by the network device after sending the first indication information, where the third indication information includes information of a second beam;

and the transmission module is used for carrying out data transmission by adopting the beam corresponding to the second beam.

Optionally, the information of the SSB includes at least one of: reference signal received power, RSRP, of one or more SSB, one or more SSB index, a list comprising a plurality of SSB index ordered.

Optionally, the terminal device 100 further includes: and the measurement module is used for measuring the SSB in the SDT process before the terminal equipment sends the first indication information to the network equipment.

Optionally, the first indication information is carried by at least one of: MAC CE in PUSCH, radio resource control RRC, uplink control information UCI; and/or, the third indication information is carried by a MAC CE or DCI in the PDSCH.

Corresponding to the processing method of at least one embodiment described above, the embodiment of the present application further provides a network device 200, referring to fig. 10, which includes:

the receiving module 210 is configured to receive, by the network device, first indication information sent by the terminal device in the SDT process, where the first indication information includes information of the first beam or information of the SSB.

Optionally, the network device 200 further includes: and the first transmission module is used for adopting the first wave beam to transmit data after receiving the first indication information under the condition that the first indication information comprises the information of the first wave beam.

Optionally, the network device 200 further includes: the first sending module is used for sending second indicating information to the terminal equipment after receiving the first indicating information when the first indicating information comprises information of a first beam, wherein the second indicating information is used for confirming beam change; and the second transmission module is used for transmitting data by adopting the first wave beam after the second indication information is transmitted.

Optionally, the network device 200 further includes: a determining module, configured to determine, when the first indication information includes information of SSB, a second beam according to the information of SSB after receiving the first indication information;

a second sending module, configured to send third indication information to the terminal device, where the third indication information includes information of the second beam;

and the third transmission module is used for the network equipment to transmit data by adopting the second wave beam.

Optionally, the second beam is the currently optimal beam or the second beam is better than the beam currently used by the network device.

Optionally, the information of the SSB includes at least one of: RSRP for one or more SSBs, one or more SSB index, a list containing a plurality of SSB index ordered.

Optionally, the information of the second beam includes SSB index corresponding to the second beam.

The terminal device 100 and the network device 200 in this embodiment of the present application can implement the corresponding functions of the devices in the foregoing method embodiments, and the flow, the functions, the implementation manner and the beneficial effects corresponding to each module (sub-module, unit or component, etc.) in the terminal device 100 and the network device 200 may refer to the corresponding descriptions in the foregoing method embodiments, which are not repeated herein.

It should be noted that, the functions described in the respective modules (sub-modules, units, or components, etc.) in the terminal device 100 and the network device 200 of the embodiments of the present application may be implemented by different modules (sub-modules, units, or components, etc.), or may be implemented by the same module (sub-modules, units, or components, etc.), for example, the first sending module and the second sending module may be different modules, or may be the same module, and all the functions thereof in the embodiments of the present application may be implemented by the same module. In addition, the transmitting module and the receiving module in the embodiments of the present application may be implemented by a transceiver of the device, and some or all of the remaining modules may be implemented by a processor of the device.

Fig. 11 is a schematic block diagram of a communication device 600 according to an embodiment of the present application, wherein the communication device 600 includes a processor 610, and the processor 610 may call and run a computer program from a memory to implement the method in the embodiment of the present application.

Optionally, the communication device 600 may further comprise a memory 620. Wherein the processor 610 may call and run a computer program from the memory 620 to implement the methods in embodiments of the present application.

The memory 620 may be a separate device from the processor 610 or may be integrated into the processor 610.

Optionally, the communication device 600 may further include a transceiver 630, and the processor 610 may control the transceiver 630 to communicate with other devices, and in particular, may send information or data to other devices, or receive information or data sent by other devices.

The transceiver 630 may include a transmitter and a receiver, among others. Transceiver 630 may further include antennas, the number of which may be one or more.

Optionally, the communication device 600 may be a network device in the embodiment of the present application, and the communication device 600 may implement a corresponding flow implemented by the network device in each method in the embodiment of the present application, which is not described herein for brevity.

Optionally, the communication device 600 may be a terminal device in the embodiment of the present application, and the communication device 600 may implement a corresponding flow implemented by the terminal device in each method in the embodiment of the present application, which is not described herein for brevity.

Fig. 12 is a schematic block diagram of a chip 700 according to an embodiment of the present application, wherein the chip 700 includes a processor 710, and the processor 710 may call and run a computer program from a memory to implement the method in the embodiment of the present application.

Optionally, chip 700 may also include memory 720. Wherein the processor 710 may call and run a computer program from the memory 720 to implement the methods in embodiments of the present application.

Wherein the memory 720 may be a separate device from the processor 710 or may be integrated into the processor 710.

Optionally, the chip 700 may also include an input interface 730. The processor 710 may control the input interface 730 to communicate with other devices or chips, and in particular, may obtain information or data sent by other devices or chips.

Optionally, the chip 700 may further include an output interface 740. The processor 710 may control the output interface 740 to communicate with other devices or chips, and in particular, may output information or data to other devices or chips.

Optionally, the chip may be applied to a network device in the embodiment of the present application, and the chip may implement a corresponding flow implemented by the network device in each method in the embodiment of the present application, which is not described herein for brevity.

Optionally, the chip may be applied to a terminal device in the embodiment of the present application, and the chip may implement a corresponding flow implemented by the terminal device in each method in the embodiment of the present application, which is not described herein for brevity.

It should be understood that the chips referred to in the embodiments of the present application may also be referred to as system-on-chip chips, or the like.

The processors mentioned above may be general purpose processors, digital signal processors (digital signal processor, DSP), off-the-shelf programmable gate arrays (field programmable gate array, FPGA), application specific integrated circuits (application specific integrated circuit, ASIC) or other programmable logic devices, transistor logic devices, discrete hardware components, etc. The general-purpose processor mentioned above may be a microprocessor or any conventional processor.

The memory mentioned above may be volatile memory or nonvolatile memory, or may include both volatile and nonvolatile memory. The nonvolatile memory may be a read-only memory (ROM), a Programmable ROM (PROM), an Erasable PROM (EPROM), an electrically Erasable EPROM (EEPROM), or a flash memory. The volatile memory may be random access memory (random access memory, RAM).

It should be understood that the above memory is exemplary but not limiting, and for example, the memory in the embodiments of the present application may be Static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double data rate SDRAM (DDR SDRAM), enhanced SDRAM (ESDRAM), synchronous Link DRAM (SLDRAM), direct Rambus RAM (DR RAM), and the like. That is, the memory in embodiments of the present application is intended to comprise, without being limited to, these and any other suitable types of memory.

Fig. 13 is a schematic block diagram of a communication system 800 according to an embodiment of the present application, the communication system 800 comprising a terminal device 810 and a network device 820.

Wherein the terminal device 810 may be used to implement the corresponding functions implemented by the terminal device in the methods of the various embodiments of the present application, and the network device 820 may be used to implement the corresponding functions implemented by the network device in the methods of the various embodiments of the present application. For brevity, the description is omitted here.

In the above embodiments, it may be implemented in whole or in part by software, hardware, firmware, or any combination thereof. When implemented in software, may be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When loaded and executed on a computer, produces a flow or function in accordance with embodiments of the present application, in whole or in part. The computer may be a general purpose computer, a special purpose computer, a computer network, or other programmable apparatus. The computer instructions may be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another computer-readable storage medium, for example, the computer instructions may be transmitted from one website, computer, server, or data center to another website, computer, server, or data center by a wired (e.g., coaxial cable, fiber optic, digital subscriber line (Digital Subscriber Line, DSL)) or wireless (e.g., infrared, wireless, microwave, etc.). The computer readable storage medium may be any available medium that can be accessed by a computer or a data storage device such as a server, data center, etc. that contains an integration of one or more available media. The usable medium may be a magnetic medium (e.g., floppy Disk, hard Disk, magnetic tape), an optical medium (e.g., DVD), or a semiconductor medium (e.g., solid State Disk (SSD)), etc.

It should be understood that, in various embodiments of the present application, the sequence numbers of the foregoing processes do not mean the order of execution, and the order of execution of the processes should be determined by the functions and internal logic thereof, and should not constitute any limitation on the implementation process of the embodiments of the present application.

It will be clearly understood by those skilled in the art that, for convenience and brevity of description, specific working processes of the above-described systems, apparatuses and units may refer to corresponding processes in the foregoing method embodiments, which are not described herein again.

The foregoing is merely a specific embodiment of the present application, but the protection scope of the present application is not limited thereto, and any person skilled in the art can easily think about changes or substitutions within the technical scope of the present application, and the changes and substitutions should be covered in the protection scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

A beam management method applied to a terminal device, the method comprising:

in the small data transmission SDT process, the terminal device sends first indication information to the network device, where the first indication information includes information of the first beam or information of the synchronization signal block SSB, if the first condition is met.
The method of claim 1, wherein,

the first condition includes: the terminal equipment determines that the current optimal beam is different from the current beam;

or alternatively, the process may be performed,

the first condition includes: the duration of the current beam used by the terminal equipment is greater than or equal to a first threshold value.
The method according to claim 1 or 2, wherein,

if the first indication information comprises information of a first wave beam, after the first indication information is sent, the terminal equipment adopts the wave beam corresponding to the first wave beam to carry out data transmission;

or alternatively, the process may be performed,

if the first indication information includes information of a first beam, after transmitting the first indication information, the method further includes: the terminal equipment receives second indication information sent by the network equipment, wherein the second indication information is used for confirming beam change, and the terminal equipment adopts a beam corresponding to the first beam to carry out data transmission after receiving the second indication information.
The method of claim 3, wherein,

the first beam is the currently optimal beam or the first beam is better than the beam currently used by the terminal device.
The method according to claim 3 or 4, wherein before the terminal device sends the first indication information to the network device, the method further comprises:

the terminal device measures a synchronization signal block SSB in an SDT procedure, wherein the first beam is determined by measurement of SSB.
The method according to any one of claims 3-5, wherein,

the first indication information is carried by a media access control layer control unit (MAC CE) in a Physical Uplink Shared Channel (PUSCH);

and/or the number of the groups of groups,

the second indication information is carried by the MAC CE in the physical downlink shared channel PDSCH.
The method according to any one of claims 3-6, wherein,

the information of the first beam includes SSB index corresponding to the first beam.
The method according to claim 1 or 2, wherein,

if the first indication information includes information of SSB, the method further includes, after transmitting the first indication information:

the terminal equipment receives third indication information sent by the network equipment, wherein the third indication information comprises information of a second wave beam;

and the terminal equipment adopts the beam corresponding to the second beam to carry out data transmission.
The method of claim 8, wherein,

the information of the SSB includes at least one of: reference signal received power, RSRP, of one or more SSB, one or more SSB index, a list comprising a plurality of SSB index ordered.
The method according to claim 8 or 9, wherein before the terminal device sends the first indication information to the network device, the method further comprises:

the terminal device measures SSB in the SDT procedure.
The method according to any one of claims 8-10, wherein,

the first indication information is carried by at least one of: MAC CE in PUSCH, radio resource control RRC, uplink control information UCI;

and/or the number of the groups of groups,

the third indication information is carried by a MAC CE or DCI in the PDSCH.
A beam management method applied to a network device, the method comprising:

in the SDT process, the network equipment receives first indication information sent by the terminal equipment, wherein the first indication information comprises information of a first wave beam or information of SSB.
The method of claim 12, wherein,

if the first indication information comprises information of a first wave beam, the network equipment adopts the first wave beam to transmit data after receiving the first indication information;

Or alternatively, the process may be performed,

if the first indication information includes information of a first beam, after receiving the first indication information, the method further includes: the network device sends second indication information to the terminal device, the second indication information is used for confirming beam change, and the network device adopts the first beam to conduct data transmission after sending the second indication information.
The method of claim 13, wherein,

the first beam is the currently optimal beam or the first beam is better than the beam currently used by the terminal device.
The method according to claim 13 or 14, wherein,

the first indication information is carried by a MAC CE in a PUSCH;

and/or the number of the groups of groups,

the second indication information is carried through a MAC CE in the PDSCH.
The method according to any one of claims 13-15, wherein,

the information of the first beam includes SSB index corresponding to the first beam.
The method of claim 12, wherein,

if the first indication information includes information of SSB, the method further includes, after receiving the first indication information:

the network equipment determines a second wave beam according to the SSB information;

The network equipment sends third indication information to the terminal equipment, wherein the third indication information comprises information of the second wave beam;

and the network equipment adopts the second wave beam to carry out data transmission.
The method of claim 17, wherein,

the second beam is the currently most optimal beam or the second beam is better than the beam currently used by the network device.
The method according to claim 17 or 18, wherein,

the information of the SSB includes at least one of: RSRP for one or more SSBs, one or more SSB index, a list containing a plurality of SSB index ordered.
The method according to any one of claims 17-19, wherein,

the first indication information is carried by at least one of: MAC CE in PUSCH, radio resource control RRC, uplink control information UCI;

and/or the number of the groups of groups,

the third indication information is carried by a MAC CE or DCI in the PDSCH.
The method according to any one of claims 17-20, wherein,

the information of the second beam includes SSB index corresponding to the second beam.
A terminal device, comprising:

and the sending module is used for sending first indication information to the network equipment by the terminal equipment in the SDT process under the condition of meeting the first condition, wherein the first indication information comprises information of a first wave beam or information of a synchronous signal block SSB.
The terminal device of claim 22, wherein,

the first condition includes: the terminal equipment determines that the current optimal beam is different from the current beam;

or alternatively, the process may be performed,

the first condition includes: the duration of the current beam used by the terminal equipment is greater than or equal to a first threshold value.
The terminal device of claim 22 or 23, further comprising:

the first transmission module is used for carrying out data transmission by adopting a beam corresponding to the first beam after the first indication information is sent under the condition that the first indication information comprises the information of the first beam;

or alternatively, the process may be performed,

a receiving module, configured to, when the first indication information includes information of a first beam, receive second indication information sent by the network device after sending the first indication information, where the second indication information is used to confirm beam change; and the second transmission module is used for carrying out data transmission by adopting the beam corresponding to the first beam after receiving the second indication information.
The terminal device of claim 24, wherein,

the first beam is the currently optimal beam or the first beam is better than the beam currently used by the terminal device.
The terminal device of claim 24 or 25, further comprising:

and the measurement module is used for measuring the SSB in the SDT process before the terminal equipment sends first indication information to the network equipment, wherein the first beam is determined by measuring the SSB.
The terminal device according to any of claims 24-26, wherein,

the first indication information is carried by a MAC CE in a PUSCH;

and/or the number of the groups of groups,

the second indication information is carried through a MAC CE in the PDSCH.
The terminal device according to any of claims 24-27, wherein,

the information of the first beam includes SSBindex corresponding to the first beam.
The terminal device of claim 22 or 23, further comprising:

a receiving module, configured to receive, when the first indication information includes SSB information, third indication information sent by the network device after sending the first indication information, where the third indication information includes information of a second beam;

and the transmission module is used for carrying out data transmission by adopting the beam corresponding to the second beam.
The terminal device of claim 29, wherein,

the information of the SSB includes at least one of: reference signal received power, RSRP, of one or more SSB, one or more SSB index, a list comprising a plurality of SSB index ordered.
The terminal device of claim 29 or 30, further comprising:

and the measurement module is used for measuring the SSB in the SDT process before the terminal equipment sends the first indication information to the network equipment.
The terminal device according to any of claims 29-31, wherein,

the first indication information is carried by at least one of: MAC CE in PUSCH, radio resource control RRC, uplink control information UCI;

and/or the number of the groups of groups,

the third indication information is carried by a MAC CE or DCI in the PDSCH.
A network device, comprising:

and the receiving module is used for receiving first indication information sent by the terminal equipment in the SDT process by the network equipment, wherein the first indication information comprises information of a first wave beam or information of SSB.
The network device of claim 33, wherein,

the first transmission module is used for carrying out data transmission by adopting the first wave beam after receiving the first indication information under the condition that the first indication information comprises the information of the first wave beam;

or alternatively, the process may be performed,

the first sending module is used for sending second indicating information to the terminal equipment after receiving the first indicating information when the first indicating information comprises information of a first beam, wherein the second indicating information is used for confirming beam change; and the second transmission module is used for transmitting data by adopting the first wave beam after the second indication information is transmitted.
The network device of claim 34, wherein,

the first beam is the currently optimal beam or the first beam is better than the beam currently used by the terminal device.
The network device of claim 34 or 35, wherein,

the first indication information is carried by a MAC CE in a PUSCH;

and/or the number of the groups of groups,

the second indication information is carried through a MAC CE in the PDSCH.
The network device of any one of claims 34-36, wherein,

the information of the first beam includes SSB index corresponding to the first beam.
The network device of claim 33, further comprising:

a determining module, configured to determine, when the first indication information includes information of SSB, a second beam according to the information of SSB after receiving the first indication information;

a second sending module, configured to send third indication information to the terminal device, where the third indication information includes information of the second beam;

and the third transmission module is used for the network equipment to transmit data by adopting the second wave beam.
The network device of claim 38, wherein,

the second beam is the currently most optimal beam or the second beam is better than the beam currently used by the network device.
The network device of claim 38 or 39, wherein,

the information of the SSB includes at least one of: RSRP for one or more SSBs, one or more SSB index, a list containing a plurality of SSB index ordered.
The network device of any one of claims 38-40, wherein,

the first indication information is carried by at least one of: MAC CE in PUSCH, radio resource control RRC, uplink control information UCI;

and/or the number of the groups of groups,

the third indication information is carried by a MAC CE or DCI in the PDSCH.
The network device of any one of claims 38-41, wherein,

the information of the second beam includes SSB index corresponding to the second beam.
A terminal device, comprising: a processor and a memory for storing a computer program, the processor invoking and running the computer program stored in the memory to perform the method of any of claims 1 to 11.
A network device, comprising: a processor and a memory for storing a computer program, the processor invoking and running the computer program stored in the memory to perform the method of any of claims 12 to 21.
A chip, comprising:

a processor for calling and running a computer program from a memory, causing a device on which the chip is mounted to perform the method of any one of claims 1 to 21.
A computer readable storage medium storing a computer program, wherein,

the computer program causing a computer to perform the method of any one of claims 1 to 21.
A computer program product comprising computer program instructions, wherein,

the computer program instructions cause a computer to perform the method of any one of claims 1 to 21.
A computer program which causes a computer to perform the method of any one of claims 1 to 21.