A method, apparatus and readable storage medium for beam management

Abstract

The present disclosure provides a method, device and readable storage medium for beam management. The method comprises: receiving at least one reference signal transmitted by a network device in an initial access stage; and determining an uplink transmission beam based on measurement results of the at least one reference signal and beam reciprocity. In the method of the present disclosure, a user equipment receives reference signals transmitted by a network device in an initial access stage and performs measurement on multiple reference signals. Based on beam reciprocity and in combination with measurement results of the multiple reference signals, the user equipment can reasonably select or adjust an uplink transmission beam, so as to ensure that information is transmitted by using a suitable uplink transmission beam and improve the success rate of the initial access process.

Description

TECHNICAL FIELD

[0001] The present disclosure relates to the technical field of wireless communication, and in particular, to a beam management method, device and readable storage medium. BACKGROUND

[0002] In a wireless communication system, a user equipment (UE) or terminal can initiate an initial access procedure to communicate with a network device. In the initial access procedure, uplink information can include, for example, a random access preamble (Preamble), a scheduling transmission message msg1 and msg3, and the like.

[0003] In the initial access procedure of millimeter waves, due to the rapid channel variation of millimeter wave frequency bands, there is a problem of unsuitable uplink transmission beam. SUMMARY

[0004] The present disclosure provides a beam management method, device and readable storage medium.

[0005] In a first aspect, the present disclosure provides a beam management method, executed by a user equipment, comprising:

[0006] In an initial access stage, receiving at least one reference signal transmitted by a network device;

[0007] Determining an uplink transmission beam according to a measurement result of the at least one reference signal and beam reciprocity.

[0008] In the method of the present disclosure, the user equipment receives a reference signal transmitted by the network device in the initial access stage, and performs multiple measurements of the reference signal. Based on the beam reciprocity and in combination with the measurement results of the multiple reference signals, the user equipment can reasonably select or adjust the uplink transmission beam to ensure that the information is transmitted using a suitable uplink transmission beam, thereby improving the success rate of the initial access procedure.

[0009] In some possible implementation manners, the determining the uplink transmission beam according to the measurement result of the at least one reference signal and the beam reciprocity comprises:

[0010] In a first time domain position, measuring the reference signal, and in response to a first measurement result of the reference signal being greater than or equal to a corresponding threshold value, determining the uplink transmission beam according to a downlink reception beam for receiving the reference signal;

[0011] In a second time domain position, measuring the reference signal to obtain a second measurement result, and adjusting a beam parameter of the uplink transmission beam according to the second measurement result.

[0012] In some possible implementation manners, the initial access stage comprises one of the following:

[0013] initial access of non-small data (non-SDT);

[0014] random access of small data (RA-SDT).

[0015] In some possible implementation manners, the first time domain position is before the user equipment sending msg1.

[0016] The second time domain position is after the user equipment receiving a random access response sent by a network device.

[0017] In some possible implementation manners, the method further includes:

[0018] Based on the adjusted beam parameter of the uplink sending beam, sending subsequent data.

[0019] In some possible implementation manners, the method further includes:

[0020] At a third time domain position after sending msg3, measuring a reference signal to obtain a third measurement result, adjusting a beam parameter of the uplink sending beam according to the third measurement result, and sending subsequent data based on the adjusted uplink sending beam.

[0021] In some possible implementation manners, in a scenario where a discontinuous reception (DRX) is configured,

[0022] The first time domain position corresponds to a time domain position at which the user equipment listens to paging in an initial access process.

[0023] The second time domain position corresponds to a time domain position at which paging is listened to before msg3 is sent.

[0024] In some possible implementation manners, the method further includes:

[0025] According to a fourth measurement result of measuring a reference signal in a process of listening to paging, adjusting a beam parameter of the uplink sending beam, and sending subsequent data based on the adjusted uplink sending beam.

[0026] In some possible implementation manners, the reference signal is one of the following:

[0027] A first synchronization signal block (SSB);

[0028] A channel state information reference signal (CSI-RS) having a quasi co-location relationship with the first SSB.

[0029] In some possible implementation manners, the reference signal corresponds to a first threshold value.

[0030] In some possible implementation manners, the initial access stage comprises:

[0031] Uplink small data transmission CG-SDT based on a physical uplink channel PUSCH configured grant resource.

[0032] In some possible implementation manners, the first time domain position is before the CG-SDT is sent.

[0033] In some possible implementation manners, in a scenario where DRX is configured, the first time domain position corresponds to a time domain position before the CG-SDT is sent and when a paging is listened to.

[0034] In some possible implementation manners, the second time domain position is after the CG-SDT is sent, or,

[0035] Subsequent data is sent based on the uplink sending beam after the beam parameter is adjusted.

[0036] In some possible implementation manners, the reference signal is one of the following:

[0037] A second SSB;

[0038] A channel state information reference signal CSI-RS that has a quasi co-location relationship with the second SSB.

[0039] In some possible implementation manners, the threshold value corresponding to the reference signal is a second threshold value.

[0040] In some possible implementation manners, the beam parameter comprises a beam width and / or a beam direction.

[0041] In a second aspect, the present disclosure provides a method for beam management, which is performed by a network device, and comprises the following steps:

[0042] In an initial access stage, at least one reference signal is sent to a user equipment.

[0043] In the method of the present disclosure, the network device sends at least one reference signal, so that the user equipment performs multiple measurements at a required time, to achieve beam adjustment in the initial access stage.

[0044] In some possible implementation manners, the step of sending at least one reference signal to the user equipment comprises:

[0045] The reference signal is sent to the user equipment at a fourth time domain position and a fifth time domain position, respectively, the fourth time domain position corresponding to a first time domain position, and the fifth time domain position corresponding to a second time domain position.

[0046] In some possible implementation manners, the initial access stage comprises one of the following:

[0047] non-small data non-SDT initial access;

[0048] small data random access RA-SDT.

[0049] In some possible implementation manners, the first time domain position is before the user equipment sends msg1.

[0050] The second time domain position is after the user equipment receives a random access response sent by a network device.

[0051] In some possible implementation manners, the method further comprises:

[0052] sending a reference signal to the user equipment at a sixth time domain position after receiving msg3 sent by the user equipment, the sixth time domain position corresponding to a third time domain position;

[0053] receiving subsequent data sent by the user equipment.

[0054] In some possible implementation manners, in a scenario where the user equipment is configured with DRX,

[0055] The first time domain position corresponds to a time domain position at which the user equipment listens to paging in an initial access process.

[0056] The second time domain position corresponds to a time domain position at which the user equipment listens to paging before sending msg3.

[0057] In some possible implementation manners, the method further comprises:

[0058] sending the reference signal to the user equipment in a process of scheduling paging;

[0059] receiving subsequent data sent by the user equipment.

[0060] In some possible implementation manners, the reference signal is one of the following:

[0061] a first SSB;

[0062] a CSI-RS having a quasi-co-location relationship with the first SSB.

[0063] In some possible implementation manners, the initial access stage comprises CG-SDT.

[0064] In some possible implementation manners, the first time domain position is before the user equipment sends the CG-SDT, or,

[0065] In the scenario where the user equipment is configured with DRX, the first time domain position corresponds to a time domain position before the user equipment transmits the CG-SDT and listens to paging.

[0066] In some possible implementation manners, the second time domain position is after the user equipment transmits the CG-SDT.

[0067] In some possible implementation manners, the reference signal is one of the following:

[0068] a second SSB;

[0069] a CSI-RS that has a quasi co-location relationship with the second SSB.

[0070] In a third aspect, the present disclosure provides a device for beam management. The device can be used to perform the steps executed by the user equipment in the first aspect or any possible design of the first aspect. The user equipment can implement the functions in the above methods through a hardware structure, a software module, or a combination of the hardware structure and the software module.

[0071] When the device in the third aspect is implemented through a software module, the device can include a transceiver module and a processing module coupled with each other. The transceiver module can be used to support the communication device to communicate, and the processing module can be used for the communication device to perform processing operations, such as generating information / messages to be transmitted or processing received signals to obtain information / messages.

[0072] When performing the steps in the first aspect, the transceiver module is configured to, in the initial access stage, receive at least one reference signal transmitted by the network device.

[0073] The processing module is configured to determine the uplink transmission beam according to the measurement result of the at least one reference signal and the beam reciprocity.

[0074] In a fourth aspect, the present disclosure provides a device for beam management. The device can be used to perform the steps executed by the network device in the second aspect or any possible design of the second aspect. The network device can implement the functions in the above methods through a hardware structure, a software module, or a combination of the hardware structure and the software module.

[0075] When the device in the fourth aspect is implemented through a software module, the device can include a transceiver module. The transceiver module can be used to support the communication device to communicate.

[0076] When performing the steps in the second aspect, the transceiver module is configured to, in the initial access stage, transmit at least one reference signal to the user equipment.

[0077] In a fifth aspect, the present disclosure provides a user equipment, comprising a processor and a memory; the memory is configured to store a computer program; the processor is configured to execute the computer program to implement the first aspect or any possible design of the first aspect.

[0078] In a sixth aspect, the present disclosure provides a network equipment, comprising a processor and a memory; the memory is configured to store a computer program; the processor is configured to execute the computer program to implement the second aspect or any possible design of the second aspect.

[0079] In a seventh aspect, the present disclosure provides a computer readable storage medium, which stores instructions (or computer program, program) in the computer readable storage medium, when the instructions are invoked to execute on a computer, the computer executes the first aspect or any possible design of the first aspect.

[0080] In an eighth aspect, the present disclosure provides a computer readable storage medium, which stores instructions (or computer program, program) in the computer readable storage medium, when the instructions are invoked to execute on a computer, the computer executes the second aspect or any possible design of the second aspect.

[0081] It should be understood that the above general description and the following detailed description are only exemplary and explanatory, and cannot limit the present disclosure. BRIEF DESCRIPTION OF DRAWINGS

[0082] The drawings described herein are intended to provide further understanding of the embodiments of the present disclosure, and constitute a part of the present application. The schematic embodiments of the embodiments of the present disclosure and their descriptions are used to explain the embodiments of the present disclosure, and do not constitute an improper limitation on the embodiments of the present disclosure. In the drawings:

[0083] The drawings herein are incorporated into the description and constitute a part of the description, show embodiments consistent with the embodiments of the present disclosure, and together with the description, serve to explain the principles of the embodiments of the present disclosure.

[0084] Figure 1 is a schematic diagram of a wireless communication system architecture provided by the embodiments of the present disclosure;

[0085] Figure 2 is an interaction flowchart of a beam management method provided by the embodiments of the present disclosure;

[0086] Figure 3 is a flowchart of a beam management method according to the embodiments of the present disclosure;

[0087] Figure 4 is a flowchart of another beam management method according to the embodiments of the present disclosure;

[0088] Figure 5 is a flowchart of another method of beam management according to an embodiment of the present disclosure;

[0089] Figure 6 is a flowchart of another method of beam management according to an embodiment of the present disclosure;

[0090] Figure 7 is a flowchart of another method of beam management according to an embodiment of the present disclosure;

[0091] Figure 8 is a flowchart of a method of beam management according to an embodiment of the present disclosure;

[0092] Figure 9 is a schematic diagram of an apparatus of beam management provided by an embodiment of the present disclosure;

[0093] Figure 10 is a block diagram of a user equipment according to an exemplary embodiment;

[0094] Figure 11 is a block diagram of an apparatus of beam management according to an exemplary embodiment;

[0095] Figure 12 is a block diagram of a network device according to an exemplary embodiment. DETAILED DESCRIPTION

[0096] The embodiments of the present disclosure will be further described with reference to the drawings and specific embodiments.

[0097] The exemplary embodiments will be described in detail herein below with reference to the drawings. The following description is merely exemplary in nature and is in no way intended to limit the present disclosure, its application, or uses. The description of the exemplary embodiments is intended to be illustrative, and not to limit the scope of the application, as defined by the claims. The following description is presented in the order of actions taken as they occur for a particular example implementation.

[0098] The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the present disclosure. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and / or "comprising," when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and / or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and / or groups thereof.

[0099] It should be understood that although the terms first, second, third, etc., may be used to describe various information in embodiments of this disclosure, such information should not be limited to these terms. These terms are only used to distinguish information of the same type from one another. For example, first information may also be referred to as second information without departing from the scope of embodiments of this disclosure, and similarly, second information may also be referred to as first information. Depending on the context, the words “if” and “suppose” as used herein may be interpreted as “when”, “when”, or “in response to a determination”.

[0100] Embodiments of this disclosure are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this disclosure, and should not be construed as limiting this disclosure.

[0101] like Figure 1 As shown in the embodiments of this disclosure, a beam management method can be applied to a wireless communication system 100, which may include a user equipment 101 and a network device 102. The user equipment 101 is configured to support carrier aggregation and can be connected to multiple carrier units of the network device 102, including a primary carrier unit and one or more secondary carrier units.

[0102] It should be understood that the wireless communication system 100 described above is applicable to both low-frequency and high-frequency scenarios. Application scenarios for the wireless communication system 100 include, but are not limited to, long-term evolution (LTE) systems, LTE frequency division duplex (FDD) systems, LTE time division duplex (TDD) systems, worldwide interoperability for microwave access (WiMAX) communication systems, cloud radio access network (CRAN) systems, future 5th-generation (5G) systems, new radio (NR) communication systems, or future evolved public land mobile network (PLMN) systems.

[0103] The user equipment 101 shown above can be a terminal, an access terminal, a terminal unit, a terminal station, a mobile station (MS), a remote station, a remote terminal, a mobile terminal, a wireless communication device, a terminal agent, or a terminal apparatus, etc. The user equipment 101 can have a wireless transceiving function, and can communicate (e.g., wirelessly communicate) with one or more network apparatuses of one or more communication systems, and receive network services provided by the network apparatuses, where the network apparatuses include, but are not limited to, the network apparatus 102.

[0104] The user equipment 101 can be a cellular phone, a cordless phone, a session initiation protocol (SIP) phone, a wireless local loop (WLL) station, a personal digital assistant (PDA) device, a handheld device with wireless communication function, a computing device, or other processing device connected to a wireless modem, a vehicle-mounted device, a wearable device, a terminal device in a future 5G network, or a terminal device in a future evolved PLMN network, etc.

[0105] The network apparatus 102 can be an access network apparatus (or an access network site). The access network apparatus refers to a device having a network access function, such as a radio access network (RAN) base station, etc. The network apparatus 102 can specifically include a base station (BS), or include a base station and a radio resource management device for controlling the base station, etc. The network apparatus 102 can also include a relay station (relay device), an access point, a base station in a future 5G network, a base station in a future evolved PLMN network, or an NR base station, etc. The network apparatus 102 can be a wearable device or a vehicle-mounted device. The network apparatus 102 can also be a communication chip with a communication module.

[0106] For example, the network device 102 includes, but is not limited to, a next generation base station (gnodeB, gNB) in 5G, an evolved node B (eNB) in an LTE system, a radio network controller (RNC), a node B (NB) in a WCDMA system, a radio controller under a CRAN system, a base station controller (BSC), a base transceiver station (BTS) in a GSM system or a CDMA system, a home base station (for example, a home evolved node B, or a home node B, HNB), a baseband unit (BBU), a transmitting and receiving point (TRP), a transmitting point (TP), a mobile switching center, and the like.

[0107] In the related art, for a user equipment 101 in a radio resource control (RRC) connected state (CONNECTED), beam tracking and beam refinement can be performed according to a downlink channel state information-reference signal (CSI-RS), so that a more refined and suitable beam is used when sending uplink. However, in the initial access process, the user equipment 101 is not configured with CSI-RS resources, and therefore can only perform beam selection according to a synchronization signal block (SSB), and cannot perform beam refinement.

[0108] Based on this situation, in the initial access process, the user equipment 101 generally needs to use the same sending beam to send data, such as using the sending beam of msg1 to send msg3. Since the channel of the millimeter wave frequency band changes very quickly, if the user equipment 101 continues to use the sending beam of msg1 to send msg3, data sending may fail, thereby causing the user equipment 101 to continuously reinitiate initial access.

[0109] The embodiment of the present disclosure provides a beam management method, Figure 2 is a flowchart of a beam management method according to an exemplary embodiment, as Figure 2 shown, the method includes steps S201-S203, specifically:

[0110] Step S201, in the initial access stage, the network device 102 sends at least one reference signal to the user equipment 101.

[0111] In some possible implementation manners, the network device 102 can send reference signals (RSs) at different time domain positions respectively according to a set sending period T.

[0112] In some possible implementation manners, the reference signal can be a synchronization signal block (SSB) or a channel state information-reference signal (CSI-RS).

[0113] For example, in the initial access stage, the network device 102 configures an SSB resource for the user equipment 101, and broadcasts the SSB according to a set period.

[0114] Step S202, the user equipment 101 receives the reference signal sent by the network device 102, and performs measurement based on the received reference signal.

[0115] In some possible implementation manners, in the initial access process, the user equipment 101 is in an RRC idle state (IDLE) or an RRC inactive state (INACTIVE).

[0116] In some possible implementation manners, the user equipment 101 receives the reference signal sent by the network device 102 at multiple time domain positions respectively.

[0117] In some possible implementation manners, the user equipment 101 can measure a received signal strength indication (RSSI), a reference signal received power (RSRP) or a reference signal received quality (RSRQ) of the received reference signal each time the reference signal is received, thereby obtaining a measurement result corresponding to each time the reference signal is measured.

[0118] Step S203, the user equipment 101 determines an uplink sending beam according to the measurement result of the at least one reference signal and the beam reciprocity.

[0119] In some possible implementation manners, the determination of the uplink sending beam by the user equipment 101 can include the following two aspects:

[0120] The uplink transmission beam is determined or selected, and the beam parameter of the uplink transmission beam is determined or adjusted (i.e., the uplink transmission beam is adjusted). The beam parameter includes a beam direction and / or a beam width.

[0121] In some possible implementation manners, the user equipment 101 is a terminal supporting beam correspondence.

[0122] In some possible implementation manners, the user equipment 101 supporting beam correspondence can determine its uplink transmission beam according to the downlink reception beam, or determine its downlink reception beam according to the uplink transmission beam.

[0123] In an example, if the downlink reception beam A is a better / optimal choice for receiving a downlink signal, the user equipment 101 determines, based on beam correspondence, that the uplink transmission beam A' corresponding to the downlink reception beam A is also a better / optimal uplink transmission beam.

[0124] In some possible implementation manners, the user equipment 101 can select or determine the downlink reception beam corresponding to the reference signal when the measurement result meets a certain condition, and then determine, based on beam correspondence, the uplink transmission beam corresponding to the downlink reception beam.

[0125] In some possible implementation manners, the user equipment 101 can receive indication information sent by the network device 102, where the indication information is used to indicate the correspondence between the reference signal and the downlink reception beam of the UE.

[0126] In an example, when the network device 102 sends the reference signal X, the user equipment 101 can learn, according to the indication information, the downlink reception beam A corresponding to the reference signal X, and thus receives the reference signal X by using the downlink reception beam A. Based on beam correspondence, the uplink transmission beam A' corresponding to the downlink reception beam A can be determined.

[0127] In some possible implementation manners, after the uplink transmission beam is determined, the user equipment 101 can determine the beam parameter of the uplink transmission beam in combination with the remaining measurement results, that is, adjust the uplink transmission beam, to better transmit data.

[0128] In the embodiments of the present disclosure, the user equipment 101 receives the reference signal sent by the network device 102 in the initial access stage, and performs measurement on the reference signal multiple times. The user equipment 101 can reasonably select or adjust the uplink transmission beam based on beam correspondence and in combination with the measurement results of the reference signal at different times, to ensure that the information is transmitted by using a suitable uplink transmission beam, improve the success rate of the initial access process, and thus avoid that the user equipment 101 constantly initiates the initial access.

[0129] The method for beam management is performed by the user equipment 101. Figure 3 is a flowchart of a method for beam management according to an example embodiment, as shown in Figure 3 The method includes steps S301-S302, specifically:

[0130] In step S301, the user equipment 101 receives at least one reference signal transmitted by the network device 102 in an initial access stage.

[0131] In some possible implementation manners, the initial access can be initiated by the user equipment 101.

[0132] For example, the initial access stage includes a random access (RA) process, in which the user equipment 101 and the network device 102 perform signaling interaction. For example, in a 2-step random access process, the user equipment 101 transmits msgA to the network device and receives msgB transmitted by the network device 102. For another example, in a 4-step random access process, the user equipment 101 transmits msg1 and msg3 to the network device 102 and receives msg2 and msg4 transmitted by the network device 102.

[0133] In some possible implementation manners, in the initial access process, the user equipment 101 is in an RRC IDLE state or an RRC INACTIVE state.

[0134] In some possible implementation manners, the network device 102 can transmit the reference signals in different time domain positions according to a set transmission period. The user equipment 101 can receive the reference signals in the multiple time domain positions in a measurement scenario, that is, multiple times.

[0135] In some possible implementation manners, the user equipment 101 can measure the RSSI, RSRP or RSRQ of the received reference signal each time the reference signal is received, thereby obtaining a measurement result corresponding to each time the reference signal is measured.

[0136] In step S302, the user equipment 101 determines an uplink transmission beam according to the measurement result of the at least one reference signal and beam reciprocity.

[0137] In some possible implementation manners, the user equipment 101 determining the uplink transmission beam can include the following two aspects:

[0138] Determining or selecting the uplink transmission beam, and determining or adjusting a beam parameter of the uplink transmission beam (that is, adjusting the uplink transmission beam). The beam parameter includes a beam direction and / or a beam width.

[0139] In some possible implementation, the user equipment 101 supporting beam reciprocity can determine its uplink transmission beam according to the downlink receiving beam, or determine its downlink receiving beam according to the uplink transmission beam.

[0140] In some possible implementation, after determining the uplink transmission beam, the user equipment 101 can combine the remaining measurement results to determine the beam parameters of the uplink transmission beam, i.e., adjust the uplink transmission beam to better transmit data.

[0141] In the embodiments of the present disclosure, the user equipment 101 receives the reference signal transmitted by the network device 102 in the initial access stage, and performs multiple measurements of the reference signal. Based on the beam reciprocity and in combination with the measurement results of the reference signal, the user equipment 101 can reasonably select or adjust the uplink transmission beam to ensure that the information is transmitted by using a suitable uplink transmission beam, and improve the success rate of the initial access process, thereby avoiding the user equipment 101 constantly initiating the initial access.

[0142] The embodiments of the present disclosure provide a beam management method, which is performed by the user equipment 101. The method includes steps S301-S303, specifically:

[0143] In step S301, the user equipment 101 receives at least one reference signal transmitted by the network device 102 in the initial access stage.

[0144] In step S302, the user equipment 101 measures the reference signal at a first time domain position, and in response to the first measurement result of the reference signal being greater than or equal to a corresponding threshold value, determines an uplink transmission beam according to a downlink receiving beam of the received reference signal.

[0145] In some possible implementation, the first measurement result is used to represent a measurement result greater than or equal to the threshold value corresponding to the reference signal, which can be a measurement result of measuring the reference signal for the first time, or a measurement result of measuring the reference signal for the Nth time.

[0146] In some possible implementation, the user equipment 101 determines the uplink transmission beam in combination with the measurement result of the reference signal and the threshold value corresponding to the reference signal.

[0147] In an example, the determined uplink transmission beam is used to transmit msg1.

[0148] In some possible implementation, in combination with different small data transmission (SDT) modes or scenarios of the user equipment 101, the first time domain position, the reference signal, and the threshold value corresponding to the reference signal can have different implementations, which can be referred to the description of the following embodiments.

[0149] In an example, the manner of the SDT can include one of the following:

[0150] Non-small data non-SDT, small data random access RA-SDT, uplink small data transmission based on physical uplink shared channel (PUSCH) configured grant resources (CG-SDT).

[0151] In some possible implementation manners, in combination with whether the user equipment 101 is configured with discontinuous reception (DRX), the first time domain position, the reference signal, and the threshold value corresponding to the reference signal can have different implementation manners, which can be referred to descriptions of the following examples.

[0152] In step S303, the user equipment 101 measures the reference signal at the second time domain position to obtain a second measurement result, and adjusts a beam parameter of the uplink transmission beam according to the second measurement result.

[0153] In some possible implementation manners, the second time domain position is after the first time domain position. The second measurement result can be the measurement result closest to the first measurement result, or can be a certain measurement result after the first measurement result.

[0154] In some possible implementation manners, in combination with the measurement of the second time domain position, the uplink transmission beam determined in step S302 can be adjusted, that is, a beam parameter of the uplink transmission beam is determined or adjusted.

[0155] In some possible implementation manners, the beam parameter includes a beam width and / or a beam direction.

[0156] In some possible implementation manners, in combination with different manners or scenarios of the SDT of the user equipment 101, the second time domain position can have different implementation manners, which can be referred to descriptions of the following examples.

[0157] In some possible implementation manners, in combination with whether the user equipment 101 is configured with DRX, the second time domain position can have different implementation manners, which can be referred to descriptions of the following examples.

[0158] In the examples of the present disclosure, the user equipment 101 performs multiple measurements of the reference signal, determines the uplink transmission beam in combination with the first measurement result, and adjusts a beam parameter of the uplink transmission beam in combination with the second measurement result, so as to realize fine adjustment of the beam in the initial access stage, thereby avoiding that the user equipment 101 constantly initiates the initial access.

[0159] The method for beam management is performed by the user equipment 101. Figure 4 is a flowchart of a method for beam management according to an example embodiment, as shown in Figure 4 The method includes steps S401-S403, specifically:

[0160] Step S401, in the non-SDT or RA-SDT stage, the user equipment 101 receives at least one reference signal sent by the network device 102.

[0161] That is, in the present embodiment, the initial access stage includes one of the following: non-small data non-SDT initial access, small data random access RA-SDT. RA-SDT is an uplink small data transmission based on a random access channel (RACH) mechanism.

[0162] In some possible implementation manners, in the non-SDT or RA-SDT, the user equipment 101 can send non-small data or small data to the network device 102. For example, small data is sent through msg3.

[0163] Step S402, the user equipment 101 measures the reference signal at a first time domain position before sending msg1, and determines an uplink transmission beam according to a downlink receiving beam receiving the reference signal, in response to a first measurement result of the reference signal being greater than or equal to a corresponding threshold value.

[0164] That is, in the present embodiment, the first time domain position is before the user equipment sends msg1; and the second time domain position is after the user equipment receives a random access response (RAR) sent by the network device.

[0165] In some possible implementation manners, the reference signal is a first synchronization signal block (SSB), that is, the user equipment 101 receives and measures the first SSB to obtain the first measurement result.

[0166] In some possible implementation manners, the threshold value corresponding to the reference signal is a first threshold value. For example, taking the RSRP of the measured first SSB as an example, the first threshold value can represent a first threshold value RSRP1 of the RSRP.

[0167] In some possible implementation manners, before sending msg1, if the first measurement result satisfies the corresponding first threshold value, the user equipment 101 can determine the uplink transmission beam based on the downlink receiving beam receiving the reference signal and the beam reciprocity. msg1, for example, Preamble, is sent to the network device 102 using this uplink transmission beam.

[0168] In some possible implementation, the network device 102 can send the RAR to the user equipment 101 with the associated reference signal's beam when detecting the preamble on the PRACH resource.

[0169] At step S403, the user equipment 101 measures the reference signal at the second time domain position after receiving the RAR to obtain a second measurement result, and adjusts the beam parameter of the uplink sending beam according to the second measurement result.

[0170] In some possible implementation, the user equipment 101 can measure the reference signal again at the second time domain position after receiving the RAR sent by the network device 102 to obtain a second measurement result.

[0171] In some possible implementation, the reference signal is one of the following:

[0172] A first synchronization signal block (SSB);

[0173] A channel state information reference signal (CSI-RS) having a quasi co-location relationship with the first SSB.

[0174] The quasi co-location relationship (QCL) between the CSI-RS and the first SSB can be type D (QCL-D), and the two can have the same spatial receiving parameter. For example, the first SSB and the CSI-RS having the QCL-D relationship with the first SSB correspond to the same UE downlink receiving beam.

[0175] In some possible implementation, the user equipment 101 can know whether the direction or angle of the reference signal sent by the network device 102 is adjusted or fine-tuned according to the second measurement result. Therefore, the user equipment 101 adjusts the beam parameter of the uplink sending beam determined by the first measurement result in combination with the second measurement result to correspond to the sending situation of the network device 102.

[0176] In some possible implementation, the user equipment 101 sends the msg3 with the uplink sending beam after the beam parameter adjustment to improve the success rate of the msg3 sending.

[0177] In some possible implementation, the beam parameter includes the beam width and / or the beam direction.

[0178] In the embodiments of the present disclosure, in the scenario of non-SDT or RA-SDT, the user equipment 101 can determine the uplink transmission beam for sending msg1 through reference signal measurement, and adjust the uplink transmission beam for sending msg3 through re-measurement. Thus, beam fine adjustment is realized through multiple reference signal measurements, the success rate of msg3 transmission is improved, and the user equipment 101 is prevented from constantly initiating initial access.

[0179] The embodiments of the present disclosure provide a beam management method, which is executed by the user equipment 101. The method comprises steps S401-S404, specifically:

[0180] In step S401, the user equipment 101 receives at least one reference signal sent by the network device 102 in the non-SDT or RA-SDT stage.

[0181] In step S402, the user equipment 101 measures the reference signal at a first time domain position before sending msg1, and determines the uplink transmission beam according to the downlink reception beam of the received reference signal in response to the first measurement result of the reference signal being greater than or equal to a corresponding threshold value.

[0182] In step S403, the user equipment 101 measures the reference signal at a second time domain position after receiving the RAR to obtain a second measurement result, and adjusts the beam parameters of the uplink transmission beam according to the second measurement result.

[0183] In step S404, the user equipment 101 sends subsequent data based on the uplink transmission beam after adjusting the beam parameters.

[0184] In the embodiments of the present disclosure, the implementation can refer to the description of the foregoing embodiments, for example, the implementation of steps S401-S403.

[0185] In some possible implementations, the sending stage of the subsequent data is between the user equipment 101 receiving the confirmation information of the network device 102 for the initial data in the initial access process and receiving the connection release message sent by the network device 102. In the sending stage, the user equipment 101 can send uplink data and receive downlink data, and the data sent in this stage is the subsequent data. For example, the subsequent data includes PUSCH information.

[0186] In some possible implementations, in combination with the description of the foregoing embodiments, the uplink transmission beam after adjusting the beam parameters is also used for sending msg3. That is, the same beam as that for sending msg3 can be used for sending the subsequent data.

[0187] The beam parameters include beam width and / or beam direction.

[0188] In this embodiment, the network device 102 can receive the subsequent data using the same beam as receiving the msg3.

[0189] In the embodiments of the present disclosure, for the transmission of the subsequent data, the user equipment 101 can use the same beam as transmitting the msg3, i.e., the uplink transmission beam after the beam parameter adjustment, thereby improving the success rate of msg3 transmission and effectively ensuring the success rate of subsequent data transmission.

[0190] The embodiments of the present disclosure provide a beam management method, which is performed by the user equipment 101. The method includes steps S401-S403 and S405, specifically:

[0191] In step S401, the user equipment 101 receives at least one reference signal transmitted by the network device 102 in the non-SDT or RA-SDT stage.

[0192] In step S402, the user equipment 101 measures the reference signal at a first time domain position before transmitting the msg1, and in response to the first measurement result of the reference signal being greater than or equal to a corresponding threshold value, determines the uplink transmission beam according to the downlink reception beam of the received reference signal.

[0193] In step S403, the user equipment 101 measures the reference signal at a second time domain position after receiving the RAR to obtain a second measurement result, and adjusts the beam parameters of the uplink transmission beam according to the second measurement result.

[0194] In step S405, the user equipment 101 measures the reference signal at a third time domain position after transmitting the msg3 to obtain a third measurement result, adjusts the beam parameters of the uplink transmission beam according to the third measurement result, and transmits the subsequent data based on the adjusted uplink transmission beam.

[0195] In some possible embodiments, the user equipment 101 can adjust the beam parameters according to the third measurement result, which can be the adjustment of the uplink transmission beam in step S402, i.e., the beam parameter adjustment of the uplink transmission beam used for transmitting the msg1.

[0196] In some possible embodiments, the user equipment 101 can adjust the beam parameters according to the third measurement result, which can be the adjustment of the uplink transmission beam in step S403 after the first beam parameter adjustment, i.e., the beam parameter adjustment of the uplink transmission beam used for transmitting the msg1 twice.

[0197] In some possible embodiments, the user equipment 101 can adjust the beam parameters according to the third measurement result, which can be the adjustment of the uplink transmission beam in step S403 after the first beam parameter adjustment, i.e., the beam parameter adjustment of the uplink transmission beam used for transmitting the msg1 twice.

[0198] The beam parameters include beam width and / or beam direction.

[0199] In some possible implementation, the third time domain position is after the second time domain position.

[0200] In some possible implementation, when performing the reference signal measurement, the reference signal is one of the following:

[0201] a first SSB;

[0202] a CSI-RS that has a quasi co-location relationship with the first SSB.

[0203] In the embodiments of the present disclosure, for the transmission of subsequent data, the user equipment 101 can perform reference signal measurement again, and perform beam parameter adjustment on the uplink transmission beam for transmitting msg1 according to the third measurement result of this measurement, or perform beam parameter adjustment again on the basis of the uplink transmission beam for transmitting msg3. Thus, beam adjustment in the initial access process is realized, and the success rate of subsequent data transmission is effectively ensured.

[0204] The embodiments of the present disclosure provide a beam management method, which is performed by the user equipment 101. Figure 5 is a flowchart of a beam management method according to an exemplary embodiment, as shown in Figure 5 The method comprises steps S501-S503, specifically:

[0205] Step S501, in the non-SDT or RA-SDT stage, the user equipment 101 receives at least one reference signal transmitted by the network device 102.

[0206] Step S502, the user equipment 101 measures the reference signal at a first time domain position, and in response to the first measurement result of the reference signal being greater than or equal to a corresponding threshold value, determines an uplink transmission beam according to a downlink reception beam for receiving the reference signal. In the scenario where DRX is configured, the first time domain position corresponds to a time domain position at which the user equipment 101 listens to paging in the initial access process.

[0207] In some possible implementation, in the scenario where DRX is configured, the user equipment 101 will continue to listen to paging in the initial access process.

[0208] The embodiments of the present disclosure aim to illustrate that the first time domain position is within the period of listening to paging, that is, the user equipment 101 performs reference signal measurement while being in the state of listening to paging in the initial access stage. The embodiments of the present disclosure do not limit the first time domain position to a certain specific time domain position.

[0209] In some possible implementation, the reference signal is a first SSB, that is, the user equipment 101 receives and measures the first SSB to obtain a first measurement result.

[0210] In some possible implementation, the threshold value corresponding to the reference signal is a first threshold value. For example, taking the measurement of the RSRP of the first SSB as an example, the first threshold value can represent a first threshold value RSRP1 of the RSRP.

[0211] In some possible implementation, if the first measurement result satisfies the corresponding first threshold value, the uplink transmission beam can be determined based on the downlink receiving beam receiving the reference signal and the beam reciprocity.

[0212] In step S503, the user equipment 101 measures the reference signal at a second time domain position to obtain a second measurement result, and adjusts the beam parameter of the uplink transmission beam according to the second measurement result. In the scenario where the DRX is configured, the second time domain position corresponds to the time domain position of listening to the paging before transmitting the msg3.

[0213] In the embodiment of the present disclosure, the second time domain position is after the first time domain position. The second time domain position is still the time domain position when the user equipment 101 is in the state of listening to the paging. That is, the user equipment 101 performs the measurement of the reference signal again at the second time domain position in the process of listening to the paging to obtain the second measurement result.

[0214] In some possible implementation, the reference signal is one of the following:

[0215] The first SSB;

[0216] The CSI-RS having a quasi co-location relationship with the first SSB.

[0217] In some possible implementation, the user equipment 101 adjusts the beam parameter of the uplink transmission beam determined according to the first measurement result according to the second measurement result, so as to be more corresponding to the transmission of the network equipment 102.

[0218] The beam parameter includes the beam width and / or the beam direction.

[0219] In some possible implementation, the uplink transmission beam after the adjustment of the beam parameter can be used to transmit the msg3, so as to improve the success rate of the transmission of the msg3.

[0220] In the embodiment of the present disclosure, in the scenario where the user equipment 101 is configured with the DRX and the initial access stage is non-SDT or RA-SDT, the user equipment 101 can perform the measurement of the reference signal in the process of listening to the paging, determine the uplink transmission beam according to the first measurement result, and adjust the beam parameter of the uplink transmission beam according to the second measurement result to transmit the msg3. Thus, the beam fine adjustment is realized through multiple measurements of the reference signal, the success rate of the transmission of the msg3 is improved, and then the user equipment 101 is avoided from constantly initiating the initial access.

[0221] The method for beam management is performed by the user equipment 101. The method comprises steps S501-S504, and specifically:

[0222] In step S501, the user equipment 101 receives at least one reference signal transmitted by the network device 102 in a non-SDT or RA-SDT stage.

[0223] In step S502, the user equipment 101 measures the reference signal at a first time domain position, and determines an uplink transmission beam according to a downlink reception beam of the received reference signal in response to a first measurement result of the reference signal being greater than or equal to a corresponding threshold value. In a scenario where DRX is configured, the first time domain position corresponds to a time domain position at which the user equipment 101 listens to a paging in an initial access process.

[0224] In step S503, the user equipment 101 measures the reference signal at a second time domain position to obtain a second measurement result, and adjusts a beam parameter of the uplink transmission beam according to the second measurement result. In a scenario where DRX is configured, the second time domain position corresponds to a time domain position at which the user equipment 101 listens to a paging before transmitting msg3.

[0225] In step S504, the user equipment 101 adjusts the beam parameter of the uplink transmission beam according to a fourth measurement result of the reference signal measured in the process of listening to the paging, and transmits subsequent data based on the adjusted uplink transmission beam.

[0226] In some possible implementation manners, in a scenario where DRX is configured, the user equipment 101 continues to listen to the paging in the initial access process.

[0227] In some possible implementation manners, for transmission of the subsequent data, the same beam as that for transmitting msg3 can be directly used.

[0228] In some possible implementation manners, the user equipment 101 adjusts the beam parameter according to the fourth measurement result, which can be adjustment of the uplink transmission beam determined in step S502.

[0229] In some possible implementation manners, the user equipment 101 adjusts the beam parameter according to the fourth measurement result, which can be adjustment of the uplink transmission beam again after the uplink transmission beam is adjusted once in step S503. That is, the uplink transmission beam is adjusted twice.

[0230] The beam parameter comprises a beam width and / or a beam direction.

[0231] In the embodiments of the present disclosure, in the DRX configured scenario, for the subsequent data transmission of non-SDT or RA-SDT, the user equipment 101 can perform reference signal measurement multiple times in the process of listening to the paging, and perform beam parameter adjustment on the uplink transmission beam according to the measurement result, such as the fourth measurement result, so as to realize the beam adjustment in the initial access process, and effectively ensure the success rate of subsequent data transmission.

[0232] The embodiments of the present disclosure provide a beam management method, which is executed by the user equipment 101. Figure 6 is a flowchart of a beam management method according to an exemplary embodiment, as shown in Figure 6 The method includes steps S601-S602, or steps S601-S603, specifically:

[0233] Step S601, in the CG-SDT stage, the user equipment 101 receives at least one reference signal transmitted by the network device 102.

[0234] That is, in the embodiments of the present disclosure, the initial access stage includes: uplink small data transmission CG-SDT based on physical uplink channel PUSCH configuration grant resource. In the CG-SDT, the user equipment 101 can transmit small data through the PUSCH (such as CG) resource configured by the network device 102.

[0235] Step S602, the user equipment 101 measures the reference signal at the first time domain position before transmitting the CG-SDT, and determines the uplink transmission beam according to the downlink receiving beam of the received reference signal in response to the first measurement result of the reference signal being greater than or equal to the corresponding threshold value.

[0236] In some possible implementation manners, the reference signal is one of the following:

[0237] The second SSB;

[0238] The CSI-RS having a quasi-co-location relationship with the second SSB. The CSI-RS can have a QCL-D relationship with the second SSB.

[0239] In some possible implementation manners, the threshold value corresponding to the reference signal is a second threshold value. For example, taking the measurement of the RSRP of the second SSB as an example, the second threshold value can represent a second threshold value RSRP2 of the RSRP.

[0240] In some possible implementation manners, for the same reference signal, the second threshold value can be greater than the first threshold value. For example, RSRP2>RSRP1.

[0241] In some embodiments, the user equipment 101 measures the second SSB or the CSI-RS having the QCL-D relationship with the second SSB to obtain a first measurement result. When the first measurement result is greater than or equal to a second threshold value, the user equipment 101 can determine an uplink transmission beam based on a downlink reception beam for receiving the reference signal and the beam reciprocity, to transmit the CG-SDT.

[0242] It is worth noting that after the uplink transmission beam is determined, the CG-SDT can be transmitted by using the uplink transmission beam. For example, when the reference signal is the second SSB, step S603 of performing beam adjustment by multiple measurements can be selectively performed. For another example, when the reference signal is the CSI-RS having the QCL-D relationship with the second SSB, the beam fine adjustment can be performed according to the measurement result of the CSI-RS, and therefore step S603 can also be selectively not performed.

[0243] In step S603, the user equipment 101 measures the reference signal at a second time domain position to obtain a second measurement result, and adjusts a beam parameter of the uplink transmission beam according to the second measurement result.

[0244] The second time domain position is after the first time domain position. For example, the second time domain position is after the CG-SDT is transmitted.

[0245] In some possible embodiments, the user equipment 101 measures the second SSB or the CSI-RS having the QCL-D relationship with the second SSB again at the second time domain position to obtain a second measurement result.

[0246] In some possible embodiments, the user equipment 101 adjusts the beam parameter of the uplink transmission beam determined by the first measurement result according to the second measurement result, to correspond to the transmission of the network equipment 102 and improve the data transmission success rate.

[0247] The beam parameter includes a beam width and / or a beam direction.

[0248] In the CG-SDT scenario in the embodiments of the present disclosure, the user equipment 101 can perform beam parameter adjustment on the selected uplink transmission beam by multiple measurements on the reference signal, which can improve the data transmission success rate and avoid the user equipment 101 constantly initiating initial access.

[0249] The embodiments of the present disclosure provide a beam management method, which is performed by the user equipment 101. The method includes steps S601-S604, and specifically:

[0250] In step S601, the user equipment 101 receives at least one reference signal transmitted by the network equipment 102 in the CG-SDT stage.

[0251] At step S602, the user equipment 101 measures the reference signal at a first time domain position before transmitting the CG-SDT, and in response to a first measurement result of the reference signal being greater than or equal to a corresponding threshold value, determines an uplink transmission beam according to a downlink reception beam of the received reference signal.

[0252] At step S603, the user equipment 101 measures the reference signal at a second time domain position to obtain a second measurement result, and adjusts a beam parameter of the uplink transmission beam according to the second measurement result.

[0253] In some possible implementation manners, the second time domain position can be after the CG-SDT is transmitted.

[0254] In some possible implementation manners, when the method does not include step S604, the user equipment 101 can transmit subsequent data by using the uplink transmission beam of step S602 or S603 in a subsequent data transmission stage of the CG-SDT, i.e., the subsequent data is transmitted by using the same beam as the CG-SDT.

[0255] At step S604, the user equipment 101 transmits the subsequent data by using the uplink transmission beam after the beam parameter is adjusted.

[0256] In the foregoing embodiments, the implementation manners of the embodiments of the present disclosure can be applied to the descriptions of the foregoing embodiments.

[0257] In some possible implementation manners, the uplink transmission beam after the beam parameter is adjusted can refer to the beam after the uplink transmission beam in step S602 is adjusted. Alternatively, in combination with the description of the foregoing embodiments, it can also be the uplink transmission beam after the beam is finely adjusted based on the measurement result of the CSI-RS. Alternatively, it can also be the beam after the beam in step S603 is adjusted again.

[0258] In some possible implementation manners, in step S604, the user equipment 101 can also perform measurement again in the manner of step S603, adjust the beam in step S602 or S603 according to a new measurement result, and then the subsequent data is transmitted.

[0259] In the embodiments of the present disclosure, in the CG-SDT scenario, the user equipment 101 can transmit the subsequent data in multiple manners, for example, multiple measurements of the reference signal can be performed, and the measurement result can be used to adjust the beam parameter; for another example, the same beam as the CG-SDT can also be used. The beam adjustment in the CG-SDT stage is achieved, and the user equipment 101 is prevented from constantly initiating initial access.

[0260] The embodiments of the present disclosure provide a beam management method, which is performed by the user equipment 101. Figure 7This is a flowchart illustrating a beam management method according to an exemplary embodiment, such as... Figure 7 As shown, the method includes steps S701 to S702, or S701 to S703, specifically:

[0261] In step S701, during the CG-SDT phase, user equipment 101 receives at least one reference signal sent by network device 102.

[0262] In step S702, user equipment 101 measures the reference signal at the first time domain position. In response to the first measurement result of the reference signal being greater than or equal to the corresponding threshold value, it determines the uplink transmission beam based on the downlink receive beam of the received reference signal. In a scenario where DRX is configured, the first time domain position corresponds to the time domain position before transmitting CG-SDT and during paging.

[0263] In some possible implementations, in scenarios where DRX is configured, user equipment 101 will continue to listen for paging during the initial access process.

[0264] This disclosure aims to illustrate that the first time domain position is used to measure the reference signal during the paging period, i.e., while the user equipment 101 is in the paging state within the CG-SDT.

[0265] In some possible implementations, the reference signal is a second SSB or a CSI-RS having a QCL-D relationship with it. User equipment 101 receives and measures the reference signal to obtain a first measurement result, which is greater than or equal to a second threshold value.

[0266] In some possible implementations, user equipment 101 determines the uplink transmit beam based on the downlink receive beam that receives the reference signal and beam reciprocity.

[0267] In some possible implementations, when the reference signal is the second SSB, user equipment 101 can use this uplink transmit beam to transmit CG-SDT and subsequent data. Alternatively, after executing S703, the uplink transmit beam can be adjusted before transmitting CG-SDT and subsequent data.

[0268] In some possible implementations, when the reference signal is CSI-RS, which has a QCL-D relationship with the second SSB, the user equipment 101 can obtain the uplink transmission beam and fine-tune the beam to transmit CG-SDT and subsequent data. In this case, step S703 may be optionally omitted.

[0269] In step S703, the user equipment 101 obtains a second measurement result by measuring the reference signal at the second time domain position, and adjusts the beam parameters of the uplink transmission beam according to the second measurement result.

[0270] In some possible implementation, the second time domain position is after the first time domain position, and in the scenario of configuring DRX, the time domain positions for performing the measurement are all set during the listening to the paging. For example, the user equipment 101 performs the measurement of the reference signal again at the second time domain position during the process of listening to the paging, and obtains a second measurement result.

[0271] In some possible implementation, the user equipment 101 adjusts the beam parameter of the uplink transmission beam determined according to the first measurement result, according to the second measurement result, to correspond to the transmission of the network equipment 102.

[0272] The beam parameter includes a beam width and / or a beam direction.

[0273] In the embodiments of the present disclosure, in the scenario that the user equipment 101 is configured with DRX and the initial access stage is CG-SDT, the user equipment 101 can perform the measurement of the reference signal during the process of listening to the paging, determine the uplink transmission beam or adjust the beam parameter of the uplink transmission beam according to the measurement result, to transmit the CG-SDT, and improve the success rate of transmitting the data.

[0274] The embodiments of the present disclosure provide a method for beam management, which is performed by the user equipment 101. The method includes steps S701-S704, and specifically:

[0275] In step S701, the user equipment 101 receives at least one reference signal transmitted by the network equipment 102 in the CG-SDT stage.

[0276] In step S702, the user equipment 101 measures the reference signal at a first time domain position, and in response to the first measurement result of the reference signal being greater than or equal to a corresponding threshold value, determines an uplink transmission beam according to a downlink reception beam of the received reference signal. In the scenario of configuring DRX, the first time domain position corresponds to a time domain position before transmitting the CG-SDT and during listening to the paging.

[0277] In step S703, the user equipment 101 measures the reference signal at a second time domain position to obtain a second measurement result, and adjusts a beam parameter of the uplink transmission beam according to the second measurement result.

[0278] In some possible implementation, the second time domain position can be after transmitting the CG-SDT. In the scenario of configuring DRX, the time domain positions for performing the measurement, such as the second time domain position, are all set during the listening to the paging.

[0279] In some possible implementations, when the method does not include step S704, in the subsequent data transmission phase of CG-SDT, user equipment 101 may use the uplink transmission beam of step S702 or S703 to transmit subsequent data, that is, use the same beam as the one used to transmit CG-SDT to transmit subsequent data.

[0280] In step S704, user equipment 101 transmits subsequent data based on the uplink transmission beam after adjusting the beam parameters.

[0281] The implementation methods of the embodiments disclosed herein can refer to the description of the foregoing embodiments.

[0282] In some possible implementations, the uplink transmit beam after adjusting the beam parameters may refer to the beam after adjusting the uplink transmit beam in step S702. Alternatively, in conjunction with the description of the foregoing embodiments, it may also be the uplink transmit beam after fine-tuning based on CSI-RS measurement results. Or, it may be a further adjustment of the beam that was adjusted once in step S703.

[0283] In some possible implementations, in step S704, user equipment 101 may also perform the measurement again in the manner of step S703, adjust the beam involved in step S702 or S703 based on the new measurement results, and then generate subsequent data.

[0284] In this embodiment of the disclosure, in a scenario where user equipment 101 is configured with DRX and the initial access phase is CG-SDT, user equipment 101 can transmit subsequent data in various ways: for example, it can perform multiple measurements of the reference signal and adjust the beam parameters using the measurement results; or, for example, it can use the same beam as when transmitting CG-SDT. This achieves beam adjustment during the CG-SDT phase, preventing user equipment 101 from continuously initiating initial access.

[0285] This disclosure provides a beam management method, which is executed by a network device 102. Figure 8 This is a flowchart illustrating a beam management method according to an exemplary embodiment, such as... Figure 8 As shown, the method includes step S801, specifically:

[0286] In step S801, during the initial access phase, network device 102 sends at least one reference signal to user equipment 101.

[0287] In some possible implementations, the initial access may be initiated by user equipment 101. During the initial access process, user equipment 101 is in RRC IDLE state or RRC INACTIVE state.

[0288] In some possible implementation, the network device 102 can transmit the reference signals at different time domain locations respectively according to a set transmission period.

[0289] In the embodiments of the present disclosure, the network device 102 can transmit multiple reference signals, so that the user equipment 101 performs measurement on the reference signals in the initial access stage. This is beneficial for the user equipment 101 to select or adjust the beam in combination with the measurement on the reference signals, to improve the data transmission success rate, and to avoid multiple initial access initiations.

[0290] The embodiments of the present disclosure provide a beam management method, which is performed by the network device 102. The method comprises the following steps S801’.

[0291] In step S801’, the network device 102 transmits reference signals to the user equipment respectively at a fourth time domain location and a fifth time domain location, the fourth time domain location corresponding to the first time domain location, and the fifth time domain location corresponding to the second time domain location.

[0292] In some possible implementation, the fourth time domain location and the first time domain location can be, for example, when the network device 102 transmits the reference signal at the fourth time domain location, the UE can receive the reference signal at the first time domain location for measurement after a certain transmission delay and UE processing delay, or the UE can perform measurement on the reference signal at the first time domain location.

[0293] Similarly, the fifth time domain location and the second time domain location can be, for example, when the network device 102 transmits the reference signal at the fifth time domain location, the UE can receive the reference signal at the second time domain location for measurement after a certain transmission delay and UE processing delay, or the UE can perform measurement on the reference signal at the second time domain location.

[0294] In the embodiments of the present disclosure, the network device 102 transmits the reference signals at different time domain locations, and the user equipment 101 performs multiple measurements at the required first time domain location and second time domain location, to realize beam adjustment in the initial access stage.

[0295] The embodiments of the present disclosure provide a beam management method, which is performed by the network device 102. The method comprises steps S801 or S801’.

[0296] The initial access stage comprises one of the following:

[0297] Initial access of non-small data (non-SDT);

[0298] Random access (RA-SDT) of small data.

[0299] The embodiments of the present disclosure can be described from several aspects.

[0300] In the first aspect, this implementation can be applied to non-SDT or RA-SDT scenarios where the UE is not configured with DRX:

[0301] In some possible implementations, the first time-domain location is before the user equipment sends msg1; the second time-domain location is after the user equipment receives the random access response sent by the network device.

[0302] This implementation corresponds to scenarios involving multiple reference signal measurements in non-SDT or RA-SDT scenarios, as described in the foregoing embodiments, and will not be repeated here.

[0303] In some possible implementations, the reference signal is one of the following:

[0304] First SSB;

[0305] CSI-RS that has a quasi-co-located relationship with the first SSB.

[0306] In some possible implementations, the method includes steps S801 to S803, wherein:

[0307] In step S802, after receiving msg3 from the user equipment, the network device 102 sends a reference signal to the user equipment 101 at the sixth time domain position, which corresponds to the third time domain position.

[0308] In step S803, network device 102 receives subsequent data sent by user equipment 101.

[0309] In this embodiment of the disclosure, for scenarios where subsequent data transmission occurs in non-SDT or RA-SDT, please refer to the implementation methods of the foregoing embodiments, which will not be repeated here. Regarding the correspondence between the sixth time-domain position and the third time-domain position, please also refer to the description of the correspondence between the fourth time-domain position and the first time-domain position described above.

[0310] Secondly, this implementation method can be applied to non-SDT or RA-SDT scenarios where the UE is configured with DRX:

[0311] In some possible implementations, in the scenario of configuring DRX for a user equipment, the first time domain position corresponds to the time domain position of the user equipment listening for paging during the initial access process; the second time domain position corresponds to the time domain position of the user equipment listening for paging before sending msg3.

[0312] This implementation corresponds to the implementation of determining the uplink transmission beam in a non-SDT or RA-SDT scenario with DRX configured. Please refer to the description of the foregoing embodiments, which will not be repeated here.

[0313] In some possible implementation, the method comprises steps S801, S804 and S805, wherein:

[0314] In step S804, the network device 102 sends the reference signal to the user equipment 101 in the process of scheduling the paging.

[0315] In step S805, the network device 102 receives the subsequent data sent by the user equipment 101.

[0316] In the embodiments of the present disclosure, the scenario corresponding to the scenario of sending subsequent data in the non-SDT or RA-SDT and the scenario of configuring DRX can refer to the implementation of the foregoing embodiments, which will not be described here.

[0317] The embodiments of the present disclosure provide a beam management method, which is performed by the network device 102. The method comprises step S801 or S801', wherein:

[0318] The initial access stage comprises CG-SDT.

[0319] In some possible implementation, the first time domain position is before the user equipment sends the CG-SDT, or,

[0320] In the scenario of configuring DRX, the first time domain position corresponds to the time domain position before the user equipment sends the CG-SDT and listens to the paging.

[0321] When the UE is not configured with DRX, the first time domain position is before the user equipment sends the CG-SDT. When the UE is configured with DRX, the first time domain position corresponds to the time domain position before the user equipment sends the CG-SDT and listens to the paging.

[0322] The implementation can refer to the foregoing implementation of determining the uplink transmission beam in the CG-SDT scenario, which will not be described here.

[0323] In some possible implementation, the second time domain position is after the user equipment sends the CG-SDT.

[0324] The implementation can refer to the foregoing implementation of sending subsequent data in the CG-SDT scenario, which will not be described here.

[0325] In some possible implementation, the reference signal is one of the following:

[0326] The second SSB;

[0327] The CSI-RS having a quasi-co-location relationship with the second SSB.

[0328] In the CG-SDT scenario, the user equipment 101 can perform beam adjustment through multiple measurements, select a suitable uplink transmission beam to transmit data, so as to improve the success rate of the network device 102 receiving data, and avoid repeatedly starting initial access.

[0329] For the convenience of describing the embodiments of the present disclosure, some specific examples are listed as follows:

[0330] In the first embodiment, the beam direction and / or beam width of the uplink transmission beam can be adjusted through multiple measurements of the reference signal.

[0331] Example 1: non-SDT or RA-SDT scenario

[0332] The user equipment 101 supporting beam reciprocity measures the reference signal, and when a first SSB satisfying a first threshold value is measured, the uplink transmission beam can be determined based on the downlink reception beam corresponding to the first SSB and the beam reciprocity. The uplink transmission beam can be used to transmit msg1.

[0333] When the network device 102 detects the preamble on the PRACH resource, the RAR can be transmitted by the transmission beam of the SSB associated with the preamble.

[0334] After the user equipment 101 receives the RAR, the user equipment 101 can measure the first SSB or the CSI-RS having a QCL-D relationship with the first SSB again, adjust the beam direction and / or beam width of the uplink transmission beam according to the measurement result, and use the adjusted beam to transmit msg3, so as to improve the success rate of transmitting msg3.

[0335] Example 2: transmission of subsequent data in the non-SDT or RA-SDT scenario

[0336] For the transmission of subsequent data, the user equipment 101 can use the same uplink transmission beam (i.e., the same beam parameters) as msg3 to transmit the subsequent data. The network device 102 also uses the same beam as the beam receiving msg3 to receive the subsequent data.

[0337] Alternatively, for the transmission of subsequent data, the user equipment 101 measures the first SSB or the CSI-RS having a QCL-D relationship with the first SSB again before transmitting the subsequent data, adjusts the beam direction and / or beam width of the uplink transmission beam according to the measurement result, and uses the adjusted beam to transmit the subsequent data. Alternatively, when the measurement result satisfies the first threshold value, the uplink transmission beam is determined again to transmit the subsequent data.

[0338] Example 3: CG-SDT scenario

[0339] The user equipment 101 supporting beam reciprocity measures the reference signal before transmitting the CG-SDT, and when a second SSB or a CSI-RS having a QCL-D relationship with the second SSB is measured to satisfy a second threshold value, an uplink transmission beam can be determined based on a downlink reception beam corresponding to the second SSB and the beam reciprocity to transmit the CG-SDT.

[0340] When the reference signal is a CSI-RS, the uplink transmission beam can be fine-adjusted in combination with the measurement result. When the reference signal is a second SSB, the beam direction and / or the beam width of the uplink transmission beam can be adjusted through multiple measurements. The CG-SDT is transmitted by the adjusted beam.

[0341] In a subsequent data transmission stage of the CG-SDT, the user equipment 101 can transmit subsequent data by the same beam as that for transmitting the CG-SDT, or can measure the second SSB or the CSI-RS having the QCL-D relationship with the second SSB again, and adjust the uplink transmission beam according to the measurement result.

[0342] In a second embodiment, the beam direction and / or the beam width of the uplink transmission beam are adjusted according to the DRX.

[0343] Example one: non-SDT or RA-SDT scenario

[0344] In a scenario of being configured with DRX, the user equipment 101 continues to listen to paging when initiating an initial access procedure, and thus the user equipment 101 measures a reference signal such as a first SSB or a CSI-RS when listening to the paging.

[0345] When the user equipment 101 measures the measurement result of the first SSB or the CSI-RS before transmitting msg3 and during listening to the paging, the uplink transmission beam can be determined when the measurement result satisfies a first threshold value. The uplink transmission beam can be adjusted in combination with the measurement result again to transmit msg3 by the adjusted beam, thereby improving the success rate of transmitting msg3.

[0346] Example two: transmission of subsequent data in a non-SDT or RA-SDT scenario

[0347] For the transmission of subsequent data, the user equipment 101 can also measure the first SSB or the CSI-RS during listening to the paging, and adjust the beam width and / or the beam direction of the uplink transmission beam in combination with the measurement result to transmit the subsequent data.

[0348] Example three: CG-SDT scenario

[0349] When transmitting CG-SDT, user equipment 101 can measure the second SSB or the CSI-RS that has a QCL-D relationship with the second SSB during paging listening. Based on the measurement results, the uplink transmission beam is determined, or the beamwidth and / or beam direction of the uplink transmission beam is adjusted to improve the success rate of transmitting CG-SDT.

[0350] During the subsequent data transmission phase of CG-SDT, user equipment 101 can use the same beam as when transmitting CG-SDT to transmit subsequent data, or it can measure the second SSB or the CSI-RS with QCL-D relationship to the second SSB again during paging, and adjust the uplink transmission beam according to the measurement results.

[0351] Based on the same concept as the above method embodiments, this disclosure also provides a beam management apparatus. This apparatus can possess the functions of the user equipment 101 in the above method embodiments and can be used to execute the steps performed by the user equipment 101 provided in the above method embodiments. This function can be implemented in hardware, or in software, or by hardware executing corresponding software. The hardware or software includes one or more modules corresponding to the above functions.

[0352] In one possible implementation, such as Figure 9 The device 900 shown can serve as the user equipment 101 involved in the above method embodiments, and perform the steps executed by the user equipment 101 in the above method embodiments. For example... Figure 9 As shown, the device 900 may include a transceiver module 901 and a processing module 902 coupled to each other. The transceiver module 901 can be used to support the communication device to communicate, and the processing module 902 can be used by the communication device to perform processing operations, such as generating information / messages to be sent, or processing received signals to obtain information / messages.

[0353] When performing the steps implemented by user equipment 101, transceiver module 901 is configured to receive at least one reference signal sent by network device during the initial access phase.

[0354] The processing module 902 is configured to determine the uplink transmission beam based on at least one measurement of a reference signal and beam reciprocity.

[0355] When the device for monitoring system information is user equipment 101, its structure can also be as follows: Figure 10 As shown. Device 1000 can be a mobile phone, computer, digital broadcasting terminal, messaging device, game console, tablet device, medical device, fitness equipment, personal digital assistant, etc.

[0356] Reference Figure 10The device 1000 can include one or more of the following components: a processing component 1002, a memory 1004, a power supply component 1006, a multimedia component 1008, an audio component 1010, an input / output (I / O) interface 1012, a sensor component 1014, and a communication component 1016.

[0357] The processing component 1002 usually controls overall operations of the device 1000, such as operations associated with displaying, making phone calls, data communications, camera operations and recording operations. The processing component 1002 can include one or more processors 1020 to execute instructions to complete all or part of steps of the above methods. In addition, the processing component 1002 can include one or more modules to facilitate

[0358] The memory 1004 is configured to store various types of data to support operations of the device 1000. Examples of these data include instructions for any application or method operating on the device 1000, contact data, phonebook data, messages, pictures, videos, and the like. The memory 1004 can be implemented by any type of volatile or non-volatile storage devices or a combination thereof, such as static random access memory (SRAM), electrically erasable programmable read only memory (EEPROM), erasable programmable read only memory (EPROM), programmable read only memory (PROM), read only memory (ROM), magnetic storage, flash memory, magnetic or optical disk.

[0359] The power supply component 1006 provides power for the various components of the device 1000. The power supply component 1006 can include a power supply management system, one or more power supplies, and other components associated with generating, managing and distributing power for the device 1000.

[0360] The multimedia component 1008 includes a screen providing an output interface between the device 1000 and a user. In some embodiments, the screen can include a liquid crystal display (LCD) and a touch panel (TP). If the screen includes a touch panel, the screen can be implemented as a touch screen to receive input signals from a user. The touch panel includes one or more touch sensors to sense touch, swiping, and gestures on the touch panel. The touch sensors can not only sense a boundary of a touching or swiping action, but also detect duration and pressure related to the touching or swiping action. In some embodiments, the multimedia component 1008 includes a front camera and / or a rear camera. The front camera and / or the rear camera can receive external multimedia data when the device 1000 is in an operation mode, such as a shooting mode or a video mode. Each of the front and rear camera can be a fixed optical lens system or have a focal length and optical zooming capability.

[0361] The audio component 1010 is configured to output and / or input audio signals. For example, the audio component 1010 includes a microphone (MIC) configured to receive an external audio signal when the device 1000 is in an operation mode, such as a call mode, a recording mode, and a voice recognition mode. The received audio signal can be further stored in the memory 1004 or transmitted via the communication component 1016. In some embodiments, the audio component 1010 further includes a speaker for outputting audio signals.

[0362] The I / O interface 1012 provides an interface between the processing component 1002 and peripheral interface modules, such as a keypad, click wheel, button, and the like. The buttons can include, but are not limited to, a home button, a volume button, a start button, and a lock button.

[0363] The sensor component 1014 includes one or more sensors to provide various state assessments for the device 1000. For example, the sensor component 1014 can detect an open / closed position of the device 1000, relative positioning of components, such as a display and a keypad of the device 1000, a change in position of the device 1000 or a component of the device 1000, presence or absence of user contact with the device 1000, an orientation or acceleration / deceleration of the device 1000, and a temperature change of the device 1000. The sensor component 1014 can include a proximity sensor configured to detect presence of a nearby object without any physical touch. The sensor component 1014 can further include a light sensor, such as a CMOS or CCD image sensor, for use in an imaging application. In some embodiments, the sensor component 1014 can further include an acceleration sensor, a gyroscope sensor, a magnetic sensor, a pressure sensor, or a temperature sensor.

[0364] The communication component 1016 is configured to facilitate wired or wireless communication between the apparatus 1000 and other devices. The apparatus 1000 can access a wireless network based on a communication standard, such as WiFi, 2G, or 3G, or a combination thereof. In an exemplary embodiment, the communication component 1016 receives a broadcast signal or broadcast related information from an external broadcast management system via a broadcast channel. In an exemplary embodiment, the communication component 1016 further includes a Near Field Communication (NFC) module to facilitate close proximity communication. For example, the NFC module can be implemented based on Radio Frequency Identification (RFID) technology, infrared data association (IrDA) technology, ultra-wideband (UWB) technology, Bluetooth (BT) technology and other technologies.

[0365] In an exemplary embodiment, the apparatus 1000 can be implemented by one or more application-specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field programmable gate arrays (FPGAs), controllers, micro-controllers, microprocessors or other electronic elements, for performing the above-described methods.

[0366] In an exemplary embodiment, a non-transitory computer readable storage medium including instructions, such as the memory 1004 including instructions, is also provided, which can be executed by the processor 1020 of the apparatus 1000 to complete the above-described methods. For example, the non-transitory computer readable storage medium can be a ROM, a random access memory (RAM), a CD-ROM, a magnetic tape, a floppy disc, and an optical data storage device, etc.

[0367] Based on the same idea as the above method embodiments, the embodiments of the present disclosure further provide an apparatus for beam management, which can have the functions of the network device 102 in the above method embodiments, and can be used to execute the steps performed by the network device 102 provided by the above method embodiments. The functions can be implemented by hardware, or by software or hardware executing corresponding software. The hardware or software includes one or more modules corresponding to the above functions.

[0368] In a possible implementation, the apparatus 1100 as shown in Figure 11 may serve as the network device 102 involved in the above method embodiments, and execute the steps performed by the network device 102 in the above method embodiments. As shown in Figure 11 , the apparatus 1100 can include a transceiver module 1101, where the transceiver module 1101 can be used to support the communication apparatus to communicate, and the transceiver module 1101 can have a wireless communication function, such as being able to communicate with other communication apparatuses wirelessly through a wireless air interface.

[0369] In performing the steps implemented by the network device 102, the transceiver module 1101 is configured to transmit at least one reference signal to the user equipment in an initial access phase.

[0370] When the communication apparatus is the network device 102, the structure can also be as shown in Figure 12 The structure of the communication apparatus is described taking a base station as an example. As shown in Figure 12 The apparatus 1200 includes a memory 1201, a processor 1202, a transceiver module 1203, and a power supply module 1206. The memory 1201 is coupled to the processor 1202 and can be used to store programs and data necessary for the apparatus 1200 to implement various functions. The processor 1202 is configured to support the apparatus 1200 to perform the corresponding functions in the above method, which can be implemented by invoking programs stored in the memory 1201. The transceiver module 1203 can be a wireless transceiver and can be used to support the apparatus 1200 to receive and / or transmit signaling and / or data through a wireless air interface. The transceiver module 1203 can also be referred to as a transceiver unit or a communication unit. The transceiver module 1203 can include a radio frequency module 1204 and one or more antennas 1205. The radio frequency module 1204 can be a remote radio unit (RRU) and can be used to transmit and convert radio frequency signals and baseband signals. The one or more antennas 1205 can be used to radiate and receive radio frequency signals.

[0371] When the apparatus 1200 needs to transmit data, the processor 1202 can perform baseband processing on the data to be transmitted and output a baseband signal to the radio frequency module. The radio frequency module performs radio frequency processing on the baseband signal and transmits the radio frequency signal in the form of an electromagnetic wave through the antenna. When data is transmitted to the apparatus 1200, the radio frequency module receives a radio frequency signal through the antenna, converts the radio frequency signal to a baseband signal, and outputs the baseband signal to the processor 1202. The processor 1202 converts the baseband signal to data and processes the data.

[0372] Those skilled in the art will readily conceive other embodiments of the present disclosure upon considering the specification and practicing the disclosed application. The present disclosure is intended to cover any variations, uses, or adaptations of the disclosed embodiments of the present disclosure that follow the general principles of the disclosed embodiments and include common general knowledge or conventional technical means in the art that are not disclosed in the present disclosure. The specification and embodiments are only considered exemplary, and the true scope and spirit of the disclosed embodiments are indicated by the following claims.

[0373] It should be understood that the embodiments of the present disclosure are not limited to the precise construction which has been described above and illustrated in the drawings and that various modifications and changes can be made without departing from the scope thereof. The scope of the embodiments of the present disclosure is limited only by the claims that follow.

[0374] Industrial applicability

[0375] In the method of the present disclosure, the user equipment receives the reference signal sent by the network equipment in the initial access stage, and performs multiple measurements on the reference signal. Based on the beam reciprocity and in combination with the measurement results of the multiple reference signals, the user equipment can reasonably select or adjust the uplink transmission beam, so as to ensure that the information is transmitted by using a suitable uplink transmission beam and the success rate of the initial access process is improved.

Claims

1. A method of beam management, performed by a user equipment, comprising: receiving at least one reference signal transmitted by a network device in an initial access stage; determining an uplink transmission beam according to measurement results of the at least one reference signal and beam reciprocity; wherein the determining the uplink transmission beam according to the measurement results of the at least one reference signal and the beam reciprocity comprises: measuring the reference signal at a first time domain location, and determining the uplink transmission beam according to a downlink reception beam of receiving the reference signal in response to a first measurement result of the reference signal being greater than or equal to a corresponding threshold value; wherein the initial access stage comprises a physical uplink channel (PUSCH) configured grant (CG) small data transmission (SDT), and the reference signal is one of: a second synchronization signal block (SSB), and a channel state information reference signal (CSI-RS) having a quasi co-location relationship with the second SSB; and the method further comprises: when the reference signal is the CSI-RS having the quasi co-location relationship with the second SSB, fine tuning the uplink transmission beam according to a measurement result of the CSI-RS; or when the reference signal is the second SSB, adjusting a beam direction and / or a beam width of the uplink transmission beam through multiple measurements; and wherein the adjusted uplink transmission beam is used for transmitting the CG-SDT. The determining the uplink transmission beam according to the measurement results of the at least one reference signal and the beam reciprocity further comprises: measuring the reference signal at a second time domain location to obtain a second measurement result, and adjusting a beam parameter of the uplink transmission beam according to the second measurement result. The initial access stage further comprises one of:

2. The method of claim 1, wherein, an initial access of non-SDT, and a random access (RA) SDT.

3. The method of claim 2, wherein, 4.The method of claim 3, wherein: the first time domain location is before the user equipment transmits msg1; and the second time domain location is after the user equipment receives a random access response transmitted by the network device. The method further comprises: transmitting subsequent data based on the uplink transmission beam after adjusting the beam parameter. The method further comprises:

5. The method of claim 4, wherein, measuring the reference signal at a third time domain location after transmitting msg3 to obtain a third measurement result, adjusting a beam parameter of the uplink transmission beam according to the third measurement result, and transmitting subsequent data based on the uplink transmission beam after adjusting. In a scenario where a discontinuous reception (DRX) is configured, 6. The method of claim 4, wherein, the first time domain location corresponds to a time domain location at which the user equipment listens to a paging during the initial access process; and the second time domain location corresponds to a time domain location at which the user equipment listens to the paging before transmitting msg3.

7. The method of claim 3, wherein, The method further comprises: adjusting a beam parameter of the uplink transmission beam according to a fourth measurement result of measuring the reference signal during the process of listening to the paging, and transmitting subsequent data based on the uplink transmission beam after adjusting. The reference signal is one of:

8. The method of claim 7, wherein, a first synchronization signal block (SSB), and a channel state information reference signal (CSI-RS) having a quasi co-location relationship with the first SSB.

9. The method of any one of claims 3 to 8, wherein, The threshold value corresponding to the reference signal is a first threshold value. ​ ​ 10. The method of claim 9, wherein, ​ 11.The method of claim 2, wherein the first time domain location is before the CG-SDT is transmitted. In a scenario where DRX is configured, the first time domain location corresponds to a time domain location before the CG-SDT is transmitted and when the UE is listening to paging.

12. The method of claim 2, wherein, 13.The method of claim 11 or 12, wherein the second time domain location is after the CG-SDT is transmitted, or the subsequent data is transmitted based on the uplink transmission beam after the beam parameter is adjusted. The threshold value corresponding to the reference signal is a second threshold value. The beam parameter includes a beam width and / or a beam direction. 16.A method of beam management, performed by a network device, the method comprising: transmitting, to a user equipment (UE), at least one reference signal in an initial access stage; wherein the initial access stage comprises a configured grant resource for uplink small data transmission (CG-SDT) based on a physical uplink channel (PUSCH); and wherein the reference signal is one of: a second synchronization signal block (SSB); and a channel state information reference signal (CSI-RS) that has a quasi co-location relationship with the second SSB.

14. The method of claim 1, wherein, In a scenario where the reference signal is the CSI-RS that has the quasi co-location relationship with the second SSB, a measurement result of the CSI-RS is used to fine tune the uplink transmission beam, or, in a scenario where the reference signal is the second SSB, the second SSB is measured multiple times to adjust a beam direction and / or a beam width of the uplink transmission beam, and an uplink transmission beam after the adjustment is used to transmit the CG-SDT.

15. The method of claim 2, wherein, The transmitting, to the UE, at least one reference signal further comprises: transmitting, to the UE, the reference signal at a fifth time domain location, the fifth time domain location corresponding to a second time domain location. The initial access stage further comprises one of: a non-small data (non-SDT) initial access; and a random access (RA) for small data (RA-SDT). 19.The method of claim 18, wherein the first time domain location is before the UE transmits msg1; and the second time domain location is after the UE receives a random access response (RAR) transmitted by the network device. The method further comprises: transmitting, to the UE, a reference signal at a sixth time domain location after the msg3 is received, the sixth time domain location corresponding to a third time domain location; and receiving subsequent data transmitted by the UE. In a scenario where DRX is configured for the UE, the first time domain location corresponds to a time domain location when the UE is listening to paging during the initial access procedure; and the second time domain location corresponds to a time domain location when the UE is listening to paging before the msg3 is transmitted. The method further comprises:

17. The method of claim 16, wherein, ​ ​ 18. The method of claim 17, wherein, ​ ​ ​ ​ ​ ​ 20. The method of claim 18, wherein, ​ ​ ​ 21. The method of claim 18, wherein, ​ ​ ​ 22. The method of claim 21, wherein, ​ transmitting the reference signal to the user equipment in a process of scheduling paging; receiving subsequent data transmitted by the user equipment.

23. The method of any one of claims 18 to 22, wherein, The reference signal is one of the following: a first SSB; a CSI-RS having a quasi co-location relationship with the first SSB.

24. The method of claim 17, wherein, the first time domain position is before the user equipment transmits the CG-SDT, or, in a scenario where DRX is configured, the first time domain position corresponds to a time domain position before the user equipment transmits the CG-SDT and listens to paging.

25. The method of claim 24, wherein, the second time domain position is after the user equipment transmits the CG-SDT.

26. An apparatus for beam management, configured to a user equipment, the apparatus comprising: a transceiver module, configured to receive at least one reference signal transmitted by a network device in an initial access stage; a processing module, configured to determine an uplink transmission beam according to a measurement result of the at least one reference signal and beam reciprocity; the processing module is configured to: measure the reference signal at a first time domain position, and determine the uplink transmission beam according to a downlink reception beam of the reference signal in response to a first measurement result of the reference signal being greater than or equal to a corresponding threshold value; wherein the initial access stage comprises uplink small data transmission (CG-SDT) based on physical uplink channel (PUSCH) configured grant resources; and the reference signal is one of the following: a second SSB; and a channel state information reference signal (CSI-RS) having a quasi co-location relationship with the second SSB; the processing module is further configured to: when the reference signal is the CSI-RS having the quasi co-location relationship with the second SSB, finely adjust the uplink transmission beam according to a measurement result of the CSI-RS; or, when the reference signal is the second SSB, adjust a beam direction and / or a beam width of the uplink transmission beam through multiple measurements; wherein the adjusted uplink transmission beam is used to transmit the CG-SDT.

27. An apparatus for beam management, configured to a network device, the apparatus comprising: a transceiver module, configured to transmit at least one reference signal to a user equipment in an initial access stage; the transceiver module is configured to: transmit the reference signal to the user equipment at a fourth time domain position corresponding to a first time domain position, the reference signal being used to measure at the first time domain position, and a downlink reception beam of the reference signal being used to determine an uplink transmission beam when a first measurement result of the reference signal is greater than or equal to a corresponding threshold value; wherein the initial access stage comprises uplink small data transmission (CG-SDT) based on physical uplink channel (PUSCH) configured grant resources; and the reference signal is one of the following: a second SSB; and a channel state information reference signal (CSI-RS) having a quasi co-location relationship with the second SSB. When the reference signal is a CSI-RS having a quasi-co-location relationship with the second SSB, a measurement result of the CSI-RS is used for fine adjustment of the uplink transmission beam, or when the reference signal is the second SSB, the second SSB is used for multiple measurements to adjust the beam direction and / or beam width of the uplink transmission beam, and the adjusted uplink transmission beam is used for transmitting the CG-SDT.

28. A user equipment comprising a processor and a memory, wherein, the memory is configured to store a computer program; the processor is configured to execute the computer program to implement the method according to any one of claims 1-15.

29. A network equipment comprising a processor and a memory, wherein, the memory is configured to store a computer program; the processor is configured to execute the computer program to implement the method according to any one of claims 16-25.

30. A computer readable storage medium, having stored therein instructions, which when executed on a computer, cause the computer to perform the method according to any one of claims 1-15.

31. A computer readable storage medium, having stored therein instructions, which when executed on a computer, cause the computer to perform the method according to any one of claims 16-25.

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