Beam determination method and device and storage medium

Abstract

The invention provides a beam determination method and device, and a storage medium, and belongs to the technical field of communication. The method comprises: through interaction between a user equipment (UE) and a network device, the network device sending a plurality of synchronous broadcast block SSB beams to the UE, the UE determining a first synchronous broadcast block SSB beam, the first SSB beam being used for random access, the plurality of SSB beams comprising the first SSB beam, the first SSB beam being used for random access. In the scheme of the present disclosure, the UE can receive the gain difference between the SBFD symbol and the non-SBFD symbol sent by the network side, so as to determine the optimal SSB beam in combination with the gain difference, thereby ensuring the accuracy of the optimal SSB. According to the method, the influence of non-SBFD and SBFD symbol beam gain difference on optimal SSB beam selection can be avoided by limiting the time domain position of SSB signal sending, and the accuracy of the optimal SSB is ensured.

Description

Beam determination method, device and storage medium Technical Field

[0001] The present disclosure relates to the field of communication technologies, and in particular to a beam determination method, device, and storage medium. Background Art

[0002] When the user equipment (UE) is in idle state, the initial access cell will measure the received signal strength of the synchronization signal / physical broadcast channel block (SSB) beam and other information to select the optimal SSB. For subband full-duplex (SBFD) symbols and non-SBFD symbols, the number of transmit radio frequency chains (Tx Chain) and antenna elements used for DL ​​transmission is different, resulting in differences in beam gain between non-SBFD symbols and SBFD symbols, leading to inaccurate SSB optimal beam selection. Among them, non-SBFD symbols include at least one of downlink (DL) symbols and flexible (F). Currently, there is no consensus on how to avoid the impact of gain differences on the optimal SSB selection.

[0003] Summary of the Invention

[0004] The beam determination method, device and storage medium proposed in the present disclosure are used by user equipment UE to determine the optimal SSB beam sent by the base station.

[0005] In a first aspect, an embodiment of the present disclosure provides a beam determination method, which is executed by a user equipment UE, and includes: determining a first synchronization broadcast block SSB beam, where the first SSB beam is used for random access.

[0006] In some embodiments of the present disclosure, the method also includes: receiving first information sent by a network device, wherein the first information is used to indicate a gain difference between a sub-band full-duplex SBFD symbol and a non-SBFD symbol, the first information is used to determine a first synchronized broadcast block SSB beam, the first SSB beam is used for random access, and the non-SBFD symbol includes at least one of a downlink DL symbol and a flexible F symbol.

[0007] In some embodiments of the present disclosure, the method also includes: receiving multiple SSB signals sent by a network device in multiple beam directions on SBFD symbols and non-SBFD symbols; measuring the multiple SSB signals to determine the first signal strength of the multiple SSB signals; and determining the second signal strength of the multiple SSB signals based on the first information and the first signal strength.

[0008] In some embodiments of the present disclosure, receiving multiple SSB signals sent by a network device in multiple beam directions on SBFD symbols and non-SBFD symbols includes: receiving at least one first SSB signal among the multiple SSB signals on SBFD symbols; and receiving at least one second SSB signal among the multiple SSB signals on non-SBFD symbols.

[0009] In some embodiments of the present disclosure, determining the first SSB beam includes: determining the first SSB beam based on the second signal strength; and performing random access using the first SSB beam.

[0010] In some embodiments of the present disclosure, determining the first SSB beam based on the second signal strength includes: determining the beam direction corresponding to the SSB signal with the largest second signal strength as the first SSB beam.

[0011] In some embodiments of the present disclosure, the method further includes: determining a first SSB beam based on the first signal strength; and performing random access using the first SSB beam.

[0012] In some embodiments of the present disclosure, determining the first SSB beam based on the first signal strength includes: determining the beam direction corresponding to the SSB signal with the largest first signal strength as the first SSB beam.

[0013] In some embodiments of the present disclosure, the beam direction corresponding to the SSB signal with the largest first signal strength is determined as the first SSB beam.

[0014] In some embodiments of the present disclosure, a second SSB beam is determined based on a second signal strength; the second SSB beam is reported to a network device; and data is received after random access using the second SSB beam.

[0015] In some embodiments of the present disclosure, determining the second SSB beam based on the second signal strength includes: determining the beam direction corresponding to the SSB signal with the largest second signal strength as the second SSB beam.

[0016] In some embodiments of the present disclosure, determining the second signal strength of multiple SSB signals based on the first information and the first signal strength includes: determining the second signal strength of the first SSB signal as the first signal strength; and determining the second signal strength of the second SSB signal as the sum of the first signal strength and the gain difference.

[0017] In some embodiments of the present disclosure, the method further includes: receiving multiple SSB signals sent by a network device in multiple beam directions in SBFD symbols or non-SBFD symbols; measuring the multiple SSB signals to determine the first signal strengths of the multiple SSB signals.

[0018] In some embodiments of the present disclosure, determining the first SSB beam includes: determining the first SSB beam based on the first signal strength.

[0019] In some embodiments of the present disclosure, determining the first SSB beam based on the first signal strength includes: determining the beam direction corresponding to the SSB signal with the largest first signal strength as the first SSB beam.

[0020] In a second aspect, an embodiment of the present disclosure provides a beam determination method, which is executed by a network device and includes: sending multiple synchronized broadcast block SSB beams, wherein the multiple SSB beams include a first SSB beam, the first SSB beam is used for random access, and the first SSB beam is determined by a user equipment UE.

[0021] In some embodiments of the present disclosure, the method further includes: sending first information to a user equipment UE, wherein the first information is used to indicate a gain difference between a sub-band full-duplex SBFD symbol and a non-SBFD symbol, and the non-SBFD symbol includes at least one of a downlink DL symbol and a flexible F symbol.

[0022] In some embodiments of the present disclosure, sending multiple synchronization broadcast block SSB beams includes: sending multiple SSB signals to the UE in multiple beam directions on SBFD symbols and non-SBFD symbols.

[0023] In some embodiments of the present disclosure, sending multiple SSB signals to the UE in multiple beam directions on SBFD symbols and non-SBFD symbols includes: sending at least one first SSB signal among the multiple SSB signals to the UE on SBFD symbols; and sending at least one second SSB signal among the multiple SSB signals to the UE on non-SBFD symbols.

[0024] In some embodiments of the present disclosure, the method further includes: receiving a second SSB beam reported by the UE; and sending data after random access using the second SSB beam.

[0025] In some embodiments of the present disclosure, the second SSB beam is the beam direction corresponding to the SSB signal with the largest second signal strength determined by the UE, the second signal strength is determined by the UE based on the first information and the first signal strength, and the first signal strength is obtained by the UE measuring multiple SSB signals.

[0026] In some embodiments of the present disclosure, the second signal strength of the first SSB signal is equal to the first signal strength; the second signal strength of the second SSB signal is equal to the sum of the first signal strength and the gain difference.

[0027] In some embodiments of the present disclosure, sending multiple synchronized broadcast block SSB beams further includes: sending the multiple SSB signals to the UE in multiple beam directions in SBFD symbols or non-SBFD symbols.

[0028] In a third aspect, an embodiment of the present disclosure provides a beam determination device, which is configured in a user equipment UE and includes: a determination unit, configured to determine a first synchronization broadcast block SSB beam, where the first SSB beam is used for random access.

[0029] In a fourth aspect, an embodiment of the present disclosure provides a beam determination device, which is configured in a network device and includes: a sending unit for sending multiple synchronized broadcast block SSB beams, wherein the multiple SSB beams include a first SSB beam, the first SSB beam is used for random access, and the first SSB beam is determined by a user equipment UE.

[0030] In a fifth aspect, an embodiment of the present disclosure provides a communication device, which includes a processor and a memory, wherein a computer program is stored in the memory, and the processor executes the computer program stored in the memory to enable the device to execute the method described in any one of the first to fourth aspects above.

[0031] In a sixth aspect, an embodiment of the present disclosure provides a communication device, which includes a processor and an interface circuit, wherein the interface circuit is used to receive code instructions and transmit them to the processor; and the processor is used to run the code instructions to execute the method described in any one of the first to fourth aspects.

[0032] In the seventh aspect, an embodiment of the present disclosure provides a computer-readable storage medium for storing the above-mentioned instructions used by the network device. When the instructions are executed, the terminal device executes the method described in any one of the first to fourth aspects.

[0033] In an eighth aspect, an embodiment of the present disclosure provides a communication system, characterized in that it includes: a user equipment UE and a network device, wherein:

[0034] The UE is configured to execute the method of the first aspect;

[0035] The network device is configured to execute the method of the second aspect.

[0036] In summary, according to the beam determination method provided in the present disclosure, the method is performed by a user equipment (UE), including: determining a first synchronization broadcast block (SSB) beam, where the first SSB beam is used for random access. In the solution of the present disclosure, the UE can receive the SSB beam sent by the network side to determine the optimal SSB beam and ensure the accuracy of the optimal SSB. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] The above and / or additional aspects and advantages of the present disclosure will become apparent and easily understood from the following description of the embodiments in conjunction with the accompanying drawings, in which:

[0038] FIG1 is a schematic flow chart of a beam determination method provided by an embodiment of the present disclosure;

[0039] FIG2 is a schematic flow chart of a beam determination method provided by another embodiment of the present disclosure;

[0040] FIG3 is a schematic flow chart of a beam determination method provided in yet another embodiment of the present disclosure;

[0041] FIG4 is a schematic flow chart of a beam determination method provided by yet another embodiment of the present disclosure;

[0042] FIG5 is a schematic flow chart of a beam determination method provided by another embodiment of the present disclosure;

[0043] FIG6 is a schematic flow chart of a beam determination method provided in yet another embodiment of the present disclosure;

[0044] FIG7 is a schematic flow chart of a beam determination method provided by yet another embodiment of the present disclosure;

[0045] FIG8 is a schematic flow chart of a beam determination method provided by another embodiment of the present disclosure;

[0046] FIG9 is a schematic flow chart of a beam determination method provided in yet another embodiment of the present disclosure;

[0047] FIG10 is an interactive schematic diagram of a beam determination method provided by an embodiment of the present disclosure;

[0048] FIG11 is a schematic structural diagram of a beam determination device provided by an embodiment of the present disclosure;

[0049] FIG12 is a schematic structural diagram of a beam determination device provided by an embodiment of the present disclosure;

[0050] FIG13 is a schematic structural diagram of a beam determination device provided by an embodiment of the present disclosure;

[0051] FIG14 is a schematic structural diagram of a beam determination device provided by an embodiment of the present disclosure;

[0052] FIG15 is a schematic structural diagram of a communication device provided by an embodiment of the present disclosure;

[0053] FIG16 is a schematic structural diagram of a communication device provided by an embodiment of the present disclosure as a chip or a chip system;

[0054] FIG17 is a schematic structural diagram of a communication system provided by an embodiment of the present disclosure. DETAILED DESCRIPTION

[0055] Exemplary embodiments will be described in detail herein, with examples illustrated in the accompanying drawings. In the following description, when referring to the drawings, identical numerals in different figures represent identical or similar elements, unless otherwise indicated. The embodiments described in the following exemplary embodiments are not intended to represent all possible implementations consistent with the present disclosure. Rather, they are merely examples of apparatuses and methods consistent with certain aspects of the present disclosure, as detailed in the appended claims.

[0056] The terms used in the embodiments of the present disclosure are for the purpose of describing specific embodiments only and are not intended to limit the embodiments of the present disclosure. The singular forms "a," "an," and "the" used in the embodiments of the present disclosure and the appended claims are also intended to include plural forms unless the context clearly indicates otherwise. It should also be understood that the term "and / or" as used herein refers to and includes any or all possible combinations of one or more associated listed items.

[0057] It should be understood that although the terms first, second, third, etc. may be used to describe various information in the embodiments of the present disclosure, such information should not be limited to these terms. These terms are only used to distinguish information of the same type from each other. For example, without departing from the scope of the embodiments of the present disclosure, the first information may also be referred to as the second information, and similarly, the second information may also be referred to as the first information. Depending on the context, the words "if" and "if" as used herein may be interpreted as "at the time of" or "when" or "in response to determining".

[0058] The embodiments of the present disclosure are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present disclosure, and should not be understood as limiting the present disclosure.

[0059] To facilitate understanding, the terms involved in this application are first introduced.

[0060] 1. Subband Full Duplex (SBFD)

[0061] Specifically, a carrier component (CC) is divided into multiple subbands (SBs) in the frequency domain on a downlink (DL) or flexible (F) symbol. The multiple SBs include a UL subband (UL) and at least one (one or two) DL subbands. The base station can send DL signals on the DL subband and receive UL signals on the UL subband at the same time. The DL or F symbol can be configured in at least one or more of the following ways:

[0062] TDD-UL-DL-ConfigCommon configuration, or,

[0063] TDD-UL-DL-ConfigDedicated configuration, or,

[0064] TDD-UL-DL-ConfigCommon and TDD-UL-DL-ConfigDedicated configurations, or,

[0065] Downlink control information format 2-0 DCIformat2-0 indication.

[0066] When a symbol includes both a DL subband and a UL subband in the frequency domain, it can be called an SBFD symbol. Similarly, when a time slot includes multiple symbols including at least one SBFD symbol, the time slot can be called an SBFD time slot.

[0067] Optionally, when all the multiple symbols included in a time slot are SBFD symbols, the time slot may be called a SBFD time slot.

[0068] 2. Synchronization Signal / Physical Broadcast Channel Block (SSB)

[0069] SSB consists of three parts: Primary Synchronization Signals (PSS), Secondary Synchronization Signals (SSS), and Physical Broadcast Channel (PBCH).

[0070] Optionally, the SSB sending period can be 5, 10, 20, 40, 80, or 160 ms.

[0071] The maximum number of SSB beams within an SSB burst set period depends on the frequency band in which the CC is located. The maximum number of SSB beams for bands below 3 GHz, between 3 GHz and 6 GHz, and above 6 GHz is 4, 8, and 64, respectively. The number of SSB beams within an SSB burst set period can be understood as the number of SSB beams required to cover the entire cell. The SSB transmission period can be configured using RRC information elements.

[0072] 3. SBFD base station antenna configuration

[0073] In the 3GPP RAN1#110 meeting, three antenna configuration schemes for base stations supporting SBFD were proposed. One of the antenna configurations (antenna configuration 1) is as follows:

[0074] For each DL time unit, K transmit RF chains (Tx Chains) are configured for DL ​​transmission. For example, transceiver unit (TxRU) group #1 and group #2 each have K / 2 transmit RF chains for DL ​​transmission. One RF chain corresponds to one or more antenna elements within an antenna panel group. In the figure, one antenna panel is configured with L / 2 antenna elements.

[0075] For the SBFD time unit, K / 2 transmit radio frequency chains (Tx Chain) are configured for DL ​​transmission, and K / 2 receive radio frequency chains (Rx Chain) are configured for UL reception.

[0076] For the UL time unit, K receiving radio frequency chains (Rx Chain) are configured for UL reception.

[0077] Optionally, when the UE is in idle state, the cell it initially accesses measures information such as the received signal strength of the SSB beam and selects the optimal SSB. Non-SBFD and SBFD symbols use different numbers of transmit chains and antenna elements for DL ​​transmission, resulting in different beam gains for non-SBFD and SBFD symbols. Therefore, when SSB signals are configured for both non-SBFD and SBFD symbols, optimal SSB selection must take this difference in beam gain into account.

[0078] It can be understood that the communication system described in the embodiment of the present disclosure is for the purpose of more clearly illustrating the technical solution of the embodiment of the present disclosure, and does not constitute a limitation on the technical solution provided by the embodiment of the present disclosure. Ordinary technicians in this field can know that with the evolution of the system architecture and the emergence of new business scenarios, the technical solution provided by the embodiment of the present disclosure is also applicable to similar technical problems.

[0079] The following describes in detail the computing power service invocation method, apparatus, device, and storage medium provided by the embodiments of the present disclosure with reference to the accompanying drawings. The method can be applied to the fifth generation mobile communication technology (5G) and its subsequent communication technologies, such as the fifth generation mobile communication technology evolution (5G-advanced) and the sixth generation mobile communication technology (6G), and is not limited in this disclosure.

[0080] UE

[0081] FIG1 is a flow chart of a beam determination method provided by an embodiment of the present disclosure, which is executed by a user equipment (UE). As shown in FIG1 , the beam determination method may include the following steps:

[0082] Step 101: Determine the first synchronized broadcast block SSB beam.

[0083] In some embodiments of the present disclosure, the first SSB beam is used for random access, wherein the first SSB beam can be understood as the optimal SSB beam. In other words, the first SSB beam can be the beam with the best signal strength.

[0084] In some embodiments of the present disclosure, an SSB beam may be a beam corresponding to a transmission or reception of an SSB signal. In other words, for a UE, an SSB beam may be a beam used to receive an SSB signal, and for a network device, an SSB beam may be a beam used to transmit an SSB signal. In the embodiments of the present disclosure, a beam used to transmit or receive an SSB signal may be named an SSB beam or another name, and this disclosure is not limited thereto.

[0085] In some embodiments of the present disclosure, random access may refer to initial access, that is, the first SSB beam may be used for initial access. In some optional embodiments of the present disclosure, the first SSB beam may also be used for data transmission after initial access, which is not limited by the present disclosure.

[0086] In some embodiments of the present disclosure, the UE may determine the first SSB beam by performing signal measurement on multiple SSB signals. For example, the UE may receive multiple SSB signals sent by a network device in multiple directions, where each direction corresponds to an SSB signal. The UE may determine the signal strength of each SSB signal and determine the beam with the strongest signal strength as the first SSB beam. Optionally, the signal strength may be a related parameter used to characterize the strength of a communication signal.

[0087] In some optional embodiments, multiple SSB signals may be received in different types of time units, for example, may be received in at least one of SBFD symbols and non-SBFD symbols, which is not limited in the present disclosure.

[0088] In summary, according to the beam determination method provided in the present disclosure, the method is performed by a user equipment (UE), including: determining a first synchronized broadcast block (SSB) beam, where the first SSB beam is used for random access. The solution of the present disclosure determines the optimal SSB beam by determining the first synchronized broadcast block (SSB) beam.

[0089] FIG2 is a flow chart of a beam determination method provided by an embodiment of the present disclosure, which is executed by a user equipment (UE). As shown in FIG2 , based on the embodiment shown in FIG1 , the beam determination method may further include the following steps:

[0090] Step 201: Receive first information sent by a network device.

[0091] In some embodiments of the present disclosure, the first information may be used to indicate a gain difference between a sub-band full-duplex SBFD symbol and a non-SBFD symbol.

[0092] In some embodiments of the present disclosure, the first information may be used to determine a first synchronization broadcast block (SSB) beam, which may be used for random access. In other words, the first SSB beam may be understood as an optimal SSB beam, and the gain difference indicated by the first information may assist the UE in determining the optimal SSB beam for random access.

[0093] In some embodiments of the present disclosure, random access may refer to initial access, that is, the first SSB beam may be used for initial access. In some optional embodiments of the present disclosure, the first SSB beam may also be used for data transmission after initial access, which is not limited by the present disclosure.

[0094] In some embodiments of the present disclosure, the first information may be SIB1 (System Information Block 1) containing the difference between non-SBFD and SBFD symbol beam gains. In some embodiments, SIB1 may carry relevant information for evaluating whether the UE is allowed to access the cell and define the scheduling of other system information.

[0095] In some embodiments of the present disclosure, the non-SBFD symbol includes at least one of a downlink (DL) symbol and a flexible (F) symbol.

[0096] In some embodiments of the present disclosure, SSB can be configured in only one type of symbol category, for example: SSB is configured only in non-SBFD symbols or SSB is configured only in SBFD symbols; in some optional embodiments, SSB can also be configured in non-SBFD symbols and SBFD symbols at the same time.

[0097] In some embodiments of the present disclosure, the first information can be sent and received between the network device and the UE through explicit signaling. For example, the UE can receive communication signaling sent by the network device, which carries the first information. The type of the communication signaling is not limited in the present disclosure.

[0098] In summary, according to the beam determination method provided in the present disclosure, the method is performed by a user equipment (UE), including: receiving first information sent by a network device, wherein the first information is used to indicate the gain difference between sub-band full-duplex SBFD symbols and non-SBFD symbols, and the first information is used to determine a first synchronized broadcast block (SSB) beam, where the first SSB beam is used for random access, and the non-SBFD symbols include at least one of downlink (DL) symbols and flexible F symbols. In the solution of the present disclosure, the UE can receive the gain difference between SBFD symbols and non-SBFD symbols sent by the network side, and determine the optimal SSB beam based on this gain difference, thereby ensuring the accuracy of the optimal SSB.

[0099] It should be understood that the above-mentioned step 201 may be an optional step, and step 201 may be performed alone or in combination with step 101, which is not limited in the present disclosure.

[0100] It should be understood that the embodiment shown in FIG. 2 may be implemented alone or in combination with the embodiment shown in FIG. 1 , and this disclosure does not limit this.

[0101] FIG3 is a flow chart of a beam determination method provided in an embodiment of the present disclosure. The method is executed by a user equipment UE. Based on the embodiment shown in FIG2 , before or after executing step 201, the beam determination method may further include the following steps:

[0102] Step 301: Receive multiple SSB signals sent by a network device in multiple beam directions on SBFD symbols and non-SBFD symbols.

[0103] In some embodiments of the present disclosure, a UE receives multiple SSB signals transmitted by a network device in multiple beam directions during SBFD and non-SBFD symbols to determine the signal strength of the SSB signals in multiple directions. The multiple beam directions may be different beam directions. For example, the multiple SSB signals may be SSB#1-SSB#8, meaning that the network device transmitted SSB signals to the UE in eight directions.

[0104] In some embodiments of the present disclosure, at least one first SSB signal among multiple SSB signals is in an SBFD symbol, and at least one second SSB signal among multiple SSB signals is in a non-SBFD symbol, wherein the SBFD symbol is one or more SBFD symbols used for SSB transmission, and the non-SBFD symbol is one or more non-SBFD symbols used for SSB transmission.

[0105] In other words, the UE can receive at least one first SSB signal among multiple SSB signals on the SBFD symbol; and receive at least one second SSB signal among multiple SSB signals on the non-SBFD symbol.

[0106] Step 302: Measure multiple SSB signals to determine first signal strengths of the multiple SSB signals.

[0107] In some embodiments of the present disclosure, a user device may measure multiple SSB signals to determine the first signal strengths of the multiple SSB signals. The measurement method may be any method for measuring a reference signal, which is not described in detail. In some embodiments of the present disclosure, the first signal strength may be the strength of the SSB signal received by the user device. For example, the first signal strength may be the Reference Signal Receiving Power (RSRP). The first signal strength may also be other parameters that characterize the signal strength, which is not limited by the present disclosure.

[0108] In some embodiments of the present disclosure, the first signal strength of the optimal SSB signal may not be the strongest among the first signal strengths of the plurality of SSB signals.

[0109] Step 303: Determine second signal strengths of the multiple SSB signals based on the first information and the first signal strengths.

[0110] In some embodiments of the present disclosure, the user equipment determines the second signal strength of multiple SSB signals based on the gain difference indicated in the first information and the measured first signal strength to determine the first SSB beam among the multiple SSB signals.

[0111] In some embodiments of the present disclosure, the second signal strength of the first SSB signal may be equal to the first signal strength.

[0112] In some embodiments of the present disclosure, the second signal strength of the second SSB signal may be equal to the sum of the first signal strength and the gain difference.

[0113] The above steps 302 and 303 are described in detail below by taking an example:

[0114] In a possible embodiment, the gain difference δ indicated by the first information is 3 dB, SSB#1-SSB#4 are SSB beams sent by the network device in non-SBFD symbols, and SSB#5-SSB#8 are SSB beams sent by the network device in SBFD symbols. The first signal strength and the second signal strength values ​​of each SSB beam are shown in the following table:

[0115] Among them, RSRP i_0 is the first signal strength, RSRP i_1 The second signal strength is determined by the difference between the first signal strength and the beam gain. For example, the second signal strengths of SSB#5-SSB#8 are equal to the sum of the corresponding first signal strengths and the gain difference δ. The second signal strengths of SSB#1-SSB#4 are equal to the corresponding first signal strengths.

[0116] Step 304: Determine a first SSB beam based on the second signal strength.

[0117] In some embodiments of the present disclosure, a user device determines a first SSB beam for transmitting a random signal to a network device.

[0118] In some embodiments of the present disclosure, the beam direction corresponding to the SSB signal with the largest second signal strength may be determined as the first SSB beam.

[0119] In the above embodiment, it can be seen from the table that SSB#5 is the SSB signal with the second largest signal strength, so the beam corresponding to the SSB#5 signal is the first SSB beam.

[0120] Step 305: Use the first SSB beam for random access.

[0121] In some embodiments of the present disclosure, the UE may use the first SSB beam for random access to establish a connection between the user equipment and the network device. In some optional embodiments, the UE may also use the first SSB beam for data transmission after random access.

[0122] In the above embodiment, the beam corresponding to the SSB#5 signal can be used to access the random signal, so that the user equipment and the network equipment can interact.

[0123] In summary, according to the beam determination method provided in the present disclosure, the method is performed by a user equipment (UE), including: receiving multiple SSB signals transmitted by a network device in multiple beam directions on SBFD symbols and non-SBFD symbols; measuring the multiple SSB signals to determine a first signal strength of the multiple SSB signals; determining a second signal strength of the multiple SSB signals based on first information and the first signal strength; determining a first SSB beam based on the second signal strength; determining the first SSB beam based on the second signal strength; and performing random access using the first SSB beam. In the solution of the present disclosure, the UE can receive the gain difference between the SBFD symbols and the non-SBFD symbols sent by the network side, and determine the optimal SSB beam based on this gain difference, thereby ensuring the accuracy of the optimal SSB.

[0124] It should be understood that the above steps 301-305 may be optional steps, and steps 301-305 may be performed separately or in combination, which is not limited by the present disclosure.

[0125] It should be understood that the embodiment shown in FIG. 3 may be implemented alone or in combination with the embodiments shown in FIG. 1 and FIG. 2 , and this disclosure does not limit this.

[0126] FIG4 is a flow chart of a beam determination method provided in an embodiment of the present disclosure. The method is executed by a user equipment UE. Based on the above embodiment, before or after executing step 201, the beam determination method may include the following steps:

[0127] Step 401: Receive multiple SSB signals sent by a network device in multiple beam directions.

[0128] It should be understood that the UE can receive multiple SSB signals sent by the network device in multiple beam directions on SBFD symbols, can receive multiple SSB signals sent by the network device in multiple beam directions on non-SBFD symbols, and can also receive multiple SSB signals sent by the network device in multiple beam directions on SBFD symbols and non-SBFD symbols.

[0129] Step 402: Measure multiple SSB signals to determine first signal strengths of the multiple SSB signals.

[0130] Step 403: Determine second signal strengths of the multiple SSB signals based on the first information and the first signal strengths.

[0131] In the present disclosure, the principles of steps 401-403 are the same as those of steps 301-303 in the embodiment shown in FIG. 3 , and reference may be made to the relevant description of the above embodiment, which will not be repeated here.

[0132] Step 404: Determine a first SSB beam based on the first signal strength.

[0133] In some embodiments of the present disclosure, the user equipment may determine the first SSB beam based on the first signal strength for random access.

[0134] In some embodiments of the present disclosure, the beam direction corresponding to the SSB signal with the largest first signal strength is determined as the first SSB beam.

[0135] In the above embodiment, the first signal strength of the SSB#4 signal is the largest, and it can be determined that the beam direction corresponding to the SSB signal is the first SSB beam.

[0136] Step 405: Use the first SSB beam for random access.

[0137] In some embodiments of the present disclosure, a first SSB beam is used for random access to enable a user device to establish a connection with a network device.

[0138] In the above embodiment, the beam corresponding to the SSB#4 signal can be used to access the random signal, so that the user equipment and the network equipment can interact.

[0139] In other words, the UE can use the first signal strength to select an SSB beam for random access, and the SSB beam may not be the optimal SSB beam, that is, the SSB beam may be the optimal SSB beam selected without considering the gain difference, thereby ensuring that the random access process is performed in a manner known to the network device and avoiding potential problems that may occur in the random access process.

[0140] Step 406: Determine a second SSB beam based on the second signal strength.

[0141] In some embodiments of the present disclosure, the user equipment determines a second SSB beam to determine a beam used for data reception after random access.

[0142] In some embodiments of the present disclosure, the UE may determine the beam direction corresponding to the SSB signal with the largest second signal strength as the second SSB beam. For example, in the above embodiment, the second signal strength of the SSB#5 signal is the largest, and the beam direction corresponding to the SSB signal may be determined as the second SSB beam.

[0143] Step 407: Report the second SSB beam to the network device.

[0144] In some embodiments of the present disclosure, the user equipment may report a second SSB beam to the network device, so that the network device uses the second SSB beam to perform data transmission after random access.

[0145] In some embodiments of the present disclosure, the user equipment may report the second SSB beam to the network device by sending RRC (Radio Resource Control) signaling, but is not limited to this. Other methods that can realize reporting the second SSB beam to the network device fall within the scope of the present disclosure.

[0146] Step 408: Use the second SSB beam to receive data after random access.

[0147] In some embodiments of the present disclosure, the user equipment uses the second SSB beam to receive data after random access to achieve selection and use of the optimal SSB beam.

[0148] In other words, in this embodiment, the UE may select an SSB beam for random access based on signal strength without considering gain differences, and perform data transmission after random access based on signal strength with considering gain differences.

[0149] In the above embodiment, the beam corresponding to the SSB#5 signal is determined to be the second SSB beam, and the beam is used to receive data after random access.

[0150] In the embodiment of the present disclosure, the above steps 406 to 408 may be optional steps.

[0151] In summary, according to the beam determination method provided by the present disclosure, the method is executed by the user equipment UE, including: receiving multiple SSB signals sent by the network device in multiple beam directions; measuring the multiple SSB signals to determine the first signal strength of the multiple SSB signals; determining the second signal strength of the multiple SSB signals based on the first information and the first signal strength; determining the first SSB beam based on the first signal strength; using the first SSB beam for random access; determining the second SSB beam based on the second signal strength; reporting the second SSB beam to the network device; using the second SSB beam for data reception after random access. In the scheme of the present disclosure, the UE can receive the gain difference between the SBFD symbol and the non-SBFD symbol sent by the network side, and determine the optimal SSB beam in combination with the gain difference to ensure the accuracy of the optimal SSB. In addition, the UE can determine the optimal SSB beam for random access and the optimal SSB beam for data transmission after random access according to different strategies, thereby enhancing the stability and reliability of communication.

[0152] It should be understood that the above steps 401-408 may be optional steps, and steps 401-408 may be performed separately or in combination, which is not limited by the present disclosure.

[0153] It should be understood that the embodiment shown in FIG. 4 can be implemented alone or in combination with the embodiments shown in FIG. 1 , FIG. 2 , and FIG. 3 , and this disclosure does not limit this.

[0154] FIG5 is a flow chart of a beam determination method provided in an embodiment of the present disclosure. The method is executed by a user equipment UE. Based on the above embodiment, the beam determination method may further include the following steps:

[0155] Step 501: Receive multiple SSB signals sent by a network device in multiple beam directions in a sub-band full-duplex SBFD symbol or a non-SBFD symbol.

[0156] In some embodiments of the present disclosure, a user device receives multiple SSB signals transmitted by a network device in multiple beam directions during sub-band full-duplex SBFD or non-SBFD symbols. In other words, this solution restricts the time-domain locations at which the network device transmits SSB signals, ensuring that the SSB signals are transmitted within the same symbol type. This prevents the impact of beam gain differences between non-SBFD and SBFD symbols on optimal SSB beam selection.

[0157] In some embodiments of the present disclosure, the non-SBFD symbol includes at least one of a downlink DL symbol and a flexible F symbol.

[0158] In some embodiments of the present disclosure, the SSB may be configured in only one type of symbol category, for example, the SSB may be configured in only non-SBFD symbols or the SSB may be configured in only SBFD symbols.

[0159] Step 502: Measure multiple SSB signals to determine first signal strengths of the multiple SSB signals.

[0160] Step 503: Determine a first SSB beam based on the first signal strength.

[0161] Specifically, the network device determines the beam direction corresponding to the SSB signal with the largest first signal strength as the first SSB beam.

[0162] In the present disclosure, the principle of step 502 is the same as that of the above-mentioned step 302, and the principle of step 503 is the same as that of step 404. Please refer to the relevant description of the above-mentioned embodiment and no further details will be given here.

[0163] In summary, the beam determination method provided in the present disclosure is performed by a user equipment (UE), and includes: receiving multiple SSB signals transmitted by a network device in multiple beam directions during a sub-band full-duplex SBFD symbol or a non-SBFD symbol; measuring the multiple SSB signals to determine a first signal strength of the multiple SSB signals; and determining a first SSB beam based on the first signal strength. The solution of the present disclosure restricts the time domain location of SSB transmission so that SSB signals are transmitted within the same symbol type, thereby avoiding the impact of the difference in beam gain between non-SBFD and SBFD symbols on the selection of the optimal SSB beam. By determining the strength of multiple SSB signals, the optimal SSB beam for random access is determined, thereby achieving the determination of the optimal SSB beam.

[0164] It should be understood that the above steps 501-503 may be optional steps, and steps 501-503 may be performed separately or in combination, which is not limited in the present disclosure.

[0165] It should be understood that the embodiment shown in FIG. 5 may be implemented alone or in combination with the embodiments shown in FIG. 1 to FIG. 4 , and the present disclosure does not limit this.

[0166] Network equipment

[0167] FIG6 is a flow chart of a beam determination method provided by an embodiment of the present disclosure. The method is executed by a network device and includes the following steps:

[0168] Step 601: Send multiple synchronized broadcast block SSB beams.

[0169] In some embodiments of the present disclosure, the multiple SSB beams include a first SSB beam, the first SSB beam is used for random access, and the first SSB beam is determined for a user equipment UE.

[0170] In some embodiments of the present disclosure, sending multiple synchronized broadcast block SSB beams may include: sending multiple SSB signals to the UE in multiple beam directions in SBFD symbols or non-SBFD symbols.

[0171] To sum up, according to the beam determination method provided in the present disclosure, the method is executed by a network device, including: sending multiple synchronized broadcast block SSB beams to enable the UE to determine the first SSB beam and achieve the determination of the optimal SSB beam.

[0172] FIG7 is a flow chart of a beam determination method provided in an embodiment of the present disclosure. The method is executed by a network device. Based on the embodiment shown in FIG6 , the beam determination method may further include the following steps:

[0173] Step 701: Send first information to user equipment UE.

[0174] In some embodiments of the present disclosure, a network device sends first information to a user equipment (UE), so that the network device obtains a difference between non-SBFD and SBFD symbol beam gains.

[0175] In some embodiments of the present disclosure, the first information is used to indicate the gain difference between the sub-band full-duplex SBFD symbol and the non-SBFD symbol, the first information is used to determine the first synchronization broadcast block SSB beam, and the first SSB beam is used for random access.

[0176] In some embodiments of the present disclosure, the non-SBFD symbol includes at least one of a downlink DL symbol and a flexible F symbol.

[0177] In the present disclosure, the principle of step 701 is the same as that of the above-mentioned step 201, and reference may be made to the relevant description of the above-mentioned embodiment, which will not be repeated here.

[0178] In summary, the beam determination method provided in the present disclosure, performed by a network device, includes: transmitting first information, wherein the first information is used to indicate the gain difference between sub-band full-duplex (SBFD) symbols and non-SBFD symbols; the first information is used to determine a first synchronized broadcast block (SSB) beam; the first SSB beam is used for random access; and the non-SBFD symbols include at least one of downlink (DL) symbols and flexible F symbols. The present disclosure enables a user device to determine the SSB beam gain by transmitting the first information, laying the foundation for determining the optimal SSB beam.

[0179] FIG8 is a flow chart of a beam determination method provided in an embodiment of the present disclosure. The method is performed by a network device. Based on the embodiment described in FIG7 , step 701 is described in detail. The beam determination method may include the following steps:

[0180] Step 801: Send multiple SSB signals to a UE in multiple beam directions on SBFD symbols and non-SBFD symbols.

[0181] In some embodiments of the present disclosure, a network device transmits multiple SSB signals to a UE in multiple beam directions on SBFD symbols and non-SBFD symbols, so that the UE determines the signal strengths of the multiple SSB signals.

[0182] In some embodiments of the present disclosure, at least one first SSB signal among the plurality of SSB signals is in a first SBFD symbol, and at least one second SSB signal among the plurality of SSB signals is in a first non-SBFD symbol.

[0183] In other words, the network device can send at least one first SSB signal among multiple SSB signals to the UE on the SBFD symbol; and send at least one second SSB signal among multiple SSB signals to the UE on the non-SBFD symbol.

[0184] Step 802: Receive the second SSB beam reported by the UE.

[0185] In some embodiments of the present disclosure, the network device receives the second SSB beam reported by the UE to use the beam to send data after random access.

[0186] In some embodiments of the present disclosure, the second SSB beam is the beam direction corresponding to the SSB signal with the largest second signal strength determined by the UE, the second signal strength is determined by the UE based on the first information and the first signal strength, and the first signal strength is obtained by the UE measuring multiple SSB signals.

[0187] Specifically, at least one first SSB signal among the multiple SSB signals is in an SBFD symbol, and the second signal strength of the first SSB signal is equal to the first signal strength; one or more at least one second SSB signal among the multiple SSB signals is in a non-SBFD symbol, and the second signal strength of the second SSB signal is equal to the sum of the first signal strength and the gain difference.

[0188] Step 803: Use the second SSB beam to send data after random access.

[0189] In some embodiments of the present disclosure, the network device uses the second SSB beam to transmit data after random access to achieve the selection and use of the optimal SSB beam.

[0190] In the present disclosure, the principles of steps 801-803 are the same as the relevant steps in the embodiment shown in FIG4 above, and reference may be made to the relevant description of the above embodiment, which will not be repeated here.

[0191] In summary, according to the beam determination method disclosed herein, the method is performed by a network device and includes: transmitting multiple SSB signals to a UE in multiple beam directions on SBFD symbols and non-SBFD symbols; receiving a second SSB beam reported by the UE; and using the second SSB beam to transmit data after random access. The disclosed solution transmits multiple SSB signals to the UE, enabling the UE to obtain the strength of each signal. By receiving the second SSB beam reported by the UE, the optimal SSB beam is determined, and the optimal SSB beam is used for data transmission after random access.

[0192] FIG9 is a flow chart of a beam determination method provided in an embodiment of the present disclosure. The method is performed by a network device. Based on the embodiment described in FIG7 , step 701 is described in detail. The beam determination method may include the following steps:

[0193] Step 901: Send multiple SSB signals to a user equipment (UE) in multiple beam directions in a sub-band full-duplex SBFD symbol or a non-SBFD symbol.

[0194] In some embodiments of the present disclosure, a network device sends multiple SSB signals to a user device in multiple beam directions in a sub-band full-duplex SBFD symbol or a non-SBFD symbol, and limits the time domain position of the SSB signal transmission so that the SSB signal is transmitted within the same symbol type, thereby avoiding the influence of the difference in beam gain between non-SBFD and SBFD symbols on the optimal SSB beam selection.

[0195] In summary, the beam determination method provided in this disclosure, performed by a network device, includes: transmitting multiple SSB signals to a user equipment (UE) in multiple beam directions during sub-band full-duplex SBFD or non-SBFD symbols. This solution restricts the time domain location of SSB transmission, ensuring that SSB signals are transmitted within the same symbol type. This prevents the impact of beam gain differences between non-SBFD and SBFD symbols on optimal SSB beam selection, thereby determining the optimal SSB beam.

[0196] Figure 10 is a flow chart of an interactive method for beam determination provided by an embodiment of the present disclosure, which can be performed by a user equipment UE and a network device. As shown in Figure 10, the interactive method may include the following steps:

[0197] Step 1001: The network device sends multiple synchronized broadcast block (SSB) beams to the user equipment (UE).

[0198] Among them, the multiple SSB beams include a first SSB beam, the first SSB beam is used for random access, and the first SSB beam is determined by the user equipment UE.

[0199] The principle of step 1001 is the same as that of each step in the embodiment shown in FIG6 , and reference may be made to the relevant description in FIG6 , which will not be repeated here.

[0200] Step 1002: The user equipment UE determines a first synchronization broadcast block SSB beam.

[0201] Among them, the first SSB beam is used for random access.

[0202] The principle of step 1002 is the same as that of each step in the embodiment shown in FIG1 , and reference may be made to the relevant description in FIG1 , which will not be repeated here.

[0203] To summarize, according to the beam determination method provided by the present disclosure, through the interaction between the network device and the user equipment UE, the network device sends multiple synchronized broadcast block SSB beams to the user equipment UE, wherein the multiple SSB beams include a first SSB beam, the first SSB beam is used for random access, and the first SSB beam is determined by the user equipment UE; the user equipment UE determines the first synchronized broadcast block SSB beam, thereby enabling the user equipment to determine the first SSB beam to achieve determination of the optimal SSB beam.

[0204] Corresponding to the network device management method provided in the above-mentioned embodiments, the present disclosure also provides a computing power service calling device. Since the computing power service calling device provided in the embodiment of the present disclosure corresponds to the computing power service calling method provided in the above-mentioned embodiments, the implementation method of the computing power service calling method is also applicable to the computing power service calling device provided in this embodiment and will not be described in detail in this embodiment.

[0205] Device

[0206] FIG11 is a structural diagram of a beam determination device 1100 provided in an embodiment of the present disclosure, which is configured in a user equipment UE.

[0207] As shown in FIG11 , the apparatus 1100 may include a determining unit 1110 for determining a first synchronization broadcast block SSB beam, where the first SSB beam is used for random access.

[0208] To sum up, according to the beam determination device provided by the embodiment of the present disclosure, the device is configured in the user equipment UE, and its determination unit is used to determine the first synchronization broadcast block SSB beam, and the first SSB beam is used for random access, thereby realizing the determination of the first SSB beam, that is, the optimal SSB beam.

[0209] In some embodiments of the present disclosure, the beam determination device 1100 also includes a receiving unit 1120, which is used to: receive first information sent by a network device, wherein the first information is used to indicate the gain difference between a sub-band full-duplex SBFD symbol and a non-SBFD symbol, and the non-SBFD symbol includes at least one of a downlink DL symbol and a flexible F symbol.

[0210] In some embodiments of the present disclosure, the receiving unit 1120 is further configured to receive multiple SSB signals transmitted by a network device in multiple beam directions on SBFD symbols and non-SBFD symbols. The determining unit 1110 is configured to measure the multiple SSB signals to determine first signal strengths of the multiple SSB signals; and determine second signal strengths of the multiple SSB signals based on the first information and the first signal strengths.

[0211] In some embodiments of the present disclosure, the receiving unit 1120 is further used to: receive at least one first SSB signal among multiple SSB signals on an SBFD symbol; and receive at least one second SSB signal among multiple SSB signals on a non-SBFD symbol.

[0212] In some embodiments of the present disclosure, the determination unit 1110 is further configured to: determine the first SSB beam based on the second signal strength.

[0213] In some embodiments of the present disclosure, the beam determination apparatus 1000 further includes a transmitting unit 1130 configured to perform random access using the first SSB beam.

[0214] In some embodiments of the present disclosure, the determination unit 1110 is further configured to determine the beam direction corresponding to the SSB signal with the largest second signal strength as the first SSB beam.

[0215] In some embodiments of the present disclosure, the sending unit 1130 is further used to: use the first SSB beam for random access.

[0216] In some embodiments of the present disclosure, the determination unit 1110 is further configured to determine the beam direction corresponding to the SSB signal with the largest first signal strength as the first SSB beam.

[0217] In some embodiments of the present disclosure, the determination unit 1110 is further configured to: determine a second SSB beam based on the second signal strength.

[0218] In some embodiments of the present disclosure, the sending unit 1130 is further used to: report the second SSB beam to the network device.

[0219] In some embodiments of the present disclosure, the receiving unit 1120 is further used to: receive data after random access using a second SSB beam.

[0220] In some embodiments of the present disclosure, the determination unit 1110 is further configured to determine the beam direction corresponding to the SSB signal with the largest second signal strength as the second SSB beam.

[0221] In some embodiments of the present disclosure, the determination unit 1110 is further configured to: determine the second signal strength of the first SSB signal as the first signal strength; and determine the second signal strength of the second SSB signal as the sum of the first signal strength and the gain difference.

[0222] In some embodiments of the present disclosure, the receiving unit 1120 is further configured to: receive, on an SBFD symbol or a non-SBFD symbol, multiple SSB signals sent by a network device in multiple beam directions.

[0223] In some embodiments of the present disclosure, the determining unit 1110 is further configured to: measure multiple SSB signals to determine first signal strengths of the multiple SSB signals.

[0224] In some embodiments of the present disclosure, the determination unit 1110 is further configured to: determine a first SSB beam based on the first signal strength.

[0225] In some embodiments of the present disclosure, the determination unit 1110 is further configured to determine the beam direction corresponding to the SSB signal with the largest first signal strength as the first SSB beam.

[0226] FIG13 is a schematic structural diagram of a beam determination apparatus 1300 provided in an embodiment of the present disclosure, which is configured in a network device.

[0227] As shown in FIG13 , the apparatus 1300 may include a sending unit 1310 configured to: send a plurality of synchronized broadcast block SSB beams,

[0228] Among them, the multiple SSB beams include a first SSB beam, the first SSB beam is used for random access, and the first SSB beam is determined by the user equipment UE.

[0229] To sum up, according to the beam determination device provided by the embodiment of the present disclosure, the device is configured in a network device, and its sending unit is used to send multiple synchronized broadcast block SSB beams to the user equipment UE, wherein the multiple SSB beams include a first SSB beam, the first SSB beam is used for random access, and the first SSB beam is determined by the user equipment UE so that the user equipment UE determines the first SSB beam.

[0230] In some embodiments of the present disclosure, the sending unit 1310 is further used to: send first information to the UE, wherein the first information is used to indicate the gain difference between the sub-band full-duplex SBFD symbol and the non-SBFD symbol, and the non-SBFD symbol includes at least one of a downlink DL symbol and a flexible F symbol.

[0231] In some embodiments of the present disclosure, the transmitting unit 1310 is further configured to: transmit multiple SSB signals to the UE in multiple beam directions on SBFD symbols and non-SBFD symbols.

[0232] In some embodiments of the present disclosure, the sending unit 1310 is further used to: send at least one first SSB signal among multiple SSB signals to the UE on an SBFD symbol, and the second signal strength of the first SSB signal is equal to the first signal strength; and send at least one second SSB signal among multiple SSB signals to the UE on a non-SBFD symbol, and the second signal strength of the second SSB signal is equal to the sum of the first signal strength and the gain difference.

[0233] In some embodiments of the present disclosure, the beam determination device 1300 further includes a receiving unit 1320, configured to receive a second SSB beam reported by the UE.

[0234] In some embodiments of the present disclosure, the sending unit 1310 is further used to: use the second SSB beam to send data after random access.

[0235] Please refer to Figure 15, which is a schematic diagram of the structure of a communication device 2000 provided in an embodiment of the present application. Communication device 2000 can be a network device or a terminal device, or a chip, chip system, or processor that supports a network device to implement the above method, or a chip, chip system, or processor that supports a terminal device to implement the above method. This device can be used to implement the method described in the above method embodiment. For details, please refer to the description of the above method embodiment.

[0236] The communication device 2000 may include one or more processors 2001. The processor 2001 may be a general-purpose processor or a dedicated processor. For example, it may be a baseband processor or a central processing unit. The baseband processor may be used to process communication protocols and communication data, and the central processing unit may be used to control the communication device (e.g., a base station, a baseband chip, a terminal device, a terminal device chip, a DU or CU, etc.), execute computer programs, and process computer program data.

[0237] Optionally, the communication device 2000 may further include one or more memories 2002, on which a computer program 2004 may be stored. The processor 2001 executes the computer program 2004 to cause the communication device 2000 to perform the method described in the above method embodiment. Optionally, the memory 2002 may also store data. The communication device 2000 and the memory 2002 may be provided separately or integrated together.

[0238] Optionally, the communication device 2000 may further include a transceiver 2005 and an antenna 2006. The transceiver 2005 may be referred to as a transceiver unit, a transceiver, or a transceiver circuit, and is configured to implement transceiver functions. The transceiver 2005 may include a receiver and a transmitter. The receiver may be referred to as a receiver or a receiving circuit, and is configured to implement a receiving function; the transmitter may be referred to as a transmitter or a transmitting circuit, and is configured to implement a transmitting function.

[0239] Optionally, the communication device 2000 may further include one or more interface circuits 2007. The interface circuit 2007 is configured to receive code instructions and transmit the code instructions to the processor 2001. The processor 2001 executes the code instructions to enable the communication device 2000 to execute the method described in the above method embodiment.

[0240] In one implementation, the processor 2001 may include a transceiver for implementing receiving and transmitting functions. For example, the transceiver may be a transceiver circuit, an interface, or an interface circuit. The transceiver circuit, interface, or interface circuit for implementing the receiving and transmitting functions may be separate or integrated. The transceiver circuit, interface, or interface circuit may be used for reading and writing code / data, or may be used for transmitting or delivering signals.

[0241] In one implementation, processor 2001 may store a computer program 2003. Computer program 2003, when executed on processor 2001, may cause communication device 2000 to perform the method described in the above method embodiment. Computer program 2003 may be embedded in processor 2001, in which case processor 2001 may be implemented by hardware.

[0242] In one implementation, the communication device 2000 may include a circuit that can implement the functions of sending, receiving, or communicating in the aforementioned method embodiments. The processor and transceiver described in this application can be implemented on an integrated circuit (IC), an analog IC, a radio frequency integrated circuit RFIC, a mixed signal IC, an application specific integrated circuit (ASIC), a printed circuit board (PCB), an electronic device, etc. The processor and transceiver can also be manufactured using various IC process technologies, such as complementary metal oxide semiconductor (CMOS), N-type metal oxide semiconductor (NMOS), P-type metal oxide semiconductor (PMOS), bipolar junction transistor (BJT), bipolar CMOS (BiCMOS), silicon germanium (SiGe), gallium arsenide (GaAs), etc.

[0243] The communication device described in the above embodiments may be a network device or a terminal device, but the scope of the communication device described in this application is not limited thereto, and the structure of the communication device may not be limited to FIG15. The communication device may be an independent device or may be part of a larger device. For example, the communication device may be:

[0244] (1) An independent integrated circuit (IC), or chip, or chip system or subsystem;

[0245] (2) a collection of one or more ICs, optionally including a storage component for storing data and computer programs;

[0246] (3) ASIC, such as modem;

[0247] (4) Modules that can be embedded in other devices;

[0248] (5) Receivers, terminal devices, intelligent terminal devices, cellular phones, wireless devices, handheld devices, mobile units, vehicle-mounted devices, network devices, cloud devices, artificial intelligence devices, etc.;

[0249] (6)Others, etc.

[0250] If the communication device can be a chip or a chip system, please refer to the schematic diagram of the chip structure shown in Figure 16. The chip shown in Figure 16 includes a processor 2101 and an interface 2102. The number of processors 2101 can be one or more, and the number of interfaces 2102 can be multiple.

[0251] Optionally, the chip further includes a memory 2103, which is used to store necessary computer programs and data.

[0252] Those skilled in the art will also appreciate that the various illustrative logical blocks and steps listed in the embodiments of the present application can be implemented by electronic hardware, computer software, or a combination of both. Whether such functions are implemented by hardware or software depends on the specific application and the design requirements of the entire system. Those skilled in the art may use various methods to implement the described functions for each specific application, but such implementation should not be construed as exceeding the scope of protection of the embodiments of the present application.

[0253] The present application also provides a readable storage medium having instructions stored thereon, which implement the functions of any of the above method embodiments when executed by a computer.

[0254] The present application also provides a computer program product, which implements the functions of any of the above method embodiments when executed by a computer.

[0255] Figure 17 is a structural diagram of a communication system provided by an embodiment of the present disclosure. As shown in Figure 17, the communication system includes: a user equipment UE for executing the methods shown in Figures 1 to 5 above; and a network device for executing the methods shown in Figures 6 to 9 above.

[0256] The present disclosure provides a beam determination method, which is performed by a user equipment (UE). The method includes:

[0257] A first synchronization broadcast block (SSB) beam is determined, where the first SSB beam is used for random access.

[0258] In some optional embodiments, the method further comprises:

[0259] receiving first information sent by the network device,

[0260] The first information is used to indicate a gain difference between a sub-band full-duplex SBFD symbol and a non-SBFD symbol, and the non-SBFD symbol includes at least one of a downlink DL symbol and a flexible F symbol.

[0261] In some optional embodiments, the method further comprises:

[0262] receiving, on the SBFD symbols and the non-SBFD symbols, a plurality of SSB signals transmitted by the network device in a plurality of beam directions;

[0263] measuring the plurality of SSB signals to determine first signal strengths of the plurality of SSB signals;

[0264] Based on the first information and the first signal strength, second signal strengths of the plurality of SSB signals are determined.

[0265] In some optional embodiments, the receiving, on the SBFD symbol and the non-SBFD symbol, multiple SSB signals sent by the network device in multiple beam directions includes:

[0266] receiving, on the SBFD symbol, at least one first SSB signal among the plurality of SSB signals;

[0267] At least one second SSB signal among the plurality of SSB signals is received on the non-SBFD symbol.

[0268] In some optional embodiments, determining the first SSB beam includes:

[0269] determining the first SSB beam based on the second signal strength;

[0270] Use the first SSB beam for random access.

[0271] In some optional embodiments, determining the first SSB beam based on the second signal strength includes:

[0272] The beam direction corresponding to the SSB signal with the second largest signal strength is determined as the first SSB beam.

[0273] In some optional embodiments, determining the first SSB beam includes:

[0274] determining the first SSB beam based on the first signal strength;

[0275] Use the first SSB beam for random access.

[0276] In some optional embodiments, determining the first SSB beam based on the first signal strength includes:

[0277] The beam direction corresponding to the SSB signal with the largest first signal strength is determined as the first SSB beam.

[0278] In some optional embodiments, the method further comprises:

[0279] determining the second SSB beam based on the second signal strength;

[0280] reporting the second SSB beam to the network device;

[0281] Use the second SSB beam to receive data after random access.

[0282] In some optional embodiments, determining the second SSB beam based on the second signal strength includes:

[0283] The beam direction corresponding to the SSB signal with the second largest signal strength is determined as the second SSB beam.

[0284] In some optional embodiments, determining the second signal strengths of the multiple SSB signals based on the first information and the first signal strengths includes:

[0285] determining a second signal strength of the first SSB signal as the first signal strength;

[0286] A second signal strength of the second SSB signal is determined as a sum of the first signal strength and the gain difference.

[0287] In some optional embodiments, the method includes:

[0288] receiving, on an SBFD symbol or a non-SBFD symbol, multiple SSB signals transmitted by a network device in multiple beam directions;

[0289] The multiple SSB signals are measured to determine first signal strengths of the multiple SSB signals.

[0290] In some optional embodiments, determining the first SSB beam includes:

[0291] Based on the first signal strength, the first SSB beam is determined.

[0292] In some optional embodiments, determining the first SSB beam based on the first signal strength includes:

[0293] The beam direction corresponding to the SSB signal with the largest first signal strength is determined as the first SSB beam.

[0294] The present disclosure provides a beam determination method, which is performed by a network device. The method includes:

[0295] Send multiple simultaneous broadcast block SSB beams,

[0296] The multiple SSB beams include a first SSB beam, which is used for random access and is determined by a user equipment UE.

[0297] In some optional embodiments, the method further comprises:

[0298] sending first information to the UE,

[0299] The first information is used to indicate a gain difference between a sub-band full-duplex SBFD symbol and a non-SBFD symbol, and the non-SBFD symbol includes at least one of a downlink DL symbol and a flexible F symbol.

[0300] In some optional embodiments, sending multiple synchronized broadcast block SSB beams includes:

[0301] The multiple SSB signals are transmitted to the UE in multiple beam directions on the SBFD symbols and the non-SBFD symbols.

[0302] In some optional embodiments, the sending multiple SSB signals to the UE in multiple beam directions on the SBFD symbol and the non-SBFD symbol includes:

[0303] Sending at least one first SSB signal among the multiple SSB signals to the UE on the SBFD symbol;

[0304] At least one second SSB signal among the multiple SSB signals is sent to the UE on the non-SBFD symbol.

[0305] In some optional embodiments, the method further comprises:

[0306] receiving a second SSB beam reported by the UE;

[0307] Data is sent after random access using the second SSB beam.

[0308] In some optional embodiments, the second SSB beam is the beam direction corresponding to the SSB signal with the second largest signal strength determined by the UE, the second signal strength is determined by the UE based on the first information and the first signal strength, and the first signal strength is obtained by the UE measuring the multiple SSB signals.

[0309] In some optional embodiments, the second signal strength of the first SSB signal is equal to the first signal strength;

[0310] A second signal strength of the second SSB signal is equal to a sum of the first signal strength and the gain difference.

[0311] In some optional embodiments, sending multiple synchronized broadcast block SSB beams includes:

[0312] In SBFD symbols or non-SBFD symbols, the multiple SSB signals are sent to the UE in multiple beam directions.

[0313] The present disclosure provides a beam determination apparatus, configured in a user equipment (UE), including:

[0314] The determination unit is used to determine a first synchronization broadcast block SSB beam, where the first SSB beam is used for random access.

[0315] The present disclosure provides a beam determination apparatus, configured in a network device, comprising:

[0316] A transmitting unit, configured to transmit a plurality of synchronized broadcast block SSB beams,

[0317] The multiple SSB beams include a first SSB beam, which is used for random access and is determined by a user equipment UE.

[0318] The present disclosure proposes a communication device, characterized in that the device includes a processor and a memory, wherein the memory stores a computer program, and the processor executes the computer program stored in the memory to enable the device to perform the method embodiment described in the present disclosure.

[0319] The present disclosure provides a communication device, characterized by comprising: a processor and an interface circuit, wherein

[0320] The interface circuit is used to receive code instructions and transmit them to the processor;

[0321] The processor is configured to execute the code instructions to perform the method embodiments described in the present disclosure.

[0322] The present disclosure provides a computer-readable storage medium for storing instructions. When the instructions are executed, the method embodiments described in the present disclosure are implemented.

[0323] The present disclosure proposes a communication system, characterized in that the system includes a user equipment UE and a network device, wherein the UE is used to execute the method embodiments shown in Figures 1 to 5, and the network device is used to execute the method embodiments shown in Figures 6 to 9.

[0324] In the present disclosure, various embodiments may be implemented individually or in combination, and the present disclosure is not limited thereto.

[0325] In the above embodiments, it can be implemented in whole or in part by software, hardware, firmware or any combination thereof. When implemented using software, it can be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer programs. When the computer program is loaded and executed on a computer, the process or function described in the embodiment of the present application is generated in whole or in part. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer program can be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another computer-readable storage medium. For example, the computer program can be transmitted from one website, computer, server or data center to another website, computer, server or data center via a wired (e.g., coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) method. The computer-readable storage medium can be any available medium that can be accessed by a computer or a data storage device such as a server or data center that includes one or more available media integrated. The available medium may be a magnetic medium (eg, a floppy disk, a hard disk, a magnetic tape), an optical medium (eg, a high-density digital video disc (DVD)), or a semiconductor medium (eg, a solid state disk (SSD)).

[0326] Those skilled in the art will understand that the various numerical numbers such as first and second involved in this application are only for the convenience of description and are not used to limit the scope of the embodiments of this application, and also indicate the order of precedence.

[0327] In this application, at least one can also be described as one or more, and multiple can be two, three, four or more, which is not limited in this application. In the embodiments of this application, for a technical feature, the technical features in the technical feature are distinguished by "first", "second", "third", "A", "B", "C" and "D", and there is no order of precedence or size between the technical features described by "first", "second", "third", "A", "B", "C" and "D".

[0328] The correspondences shown in the tables in this application can be configured or predefined. The values ​​of the information in each table are examples only and can be configured to other values, which are not limited by this application. When configuring the correspondence between information and parameters, it is not necessarily required to configure all the correspondences shown in each table. For example, in the tables in this application, the correspondences shown in certain rows may not be configured. For another example, appropriate deformation adjustments can be made based on the above tables, such as splitting, merging, etc. The names of the parameters shown in the titles of the above tables can also use other names that can be understood by the communication device, and the values ​​or representations of the parameters can also use other values ​​or representations that can be understood by the communication device. When implementing the above tables, other data structures can also be used, such as arrays, queues, containers, stacks, linear lists, pointers, linked lists, trees, graphs, structures, classes, heaps, hash tables or hash tables, etc.

[0329] The predefined in this application may be understood as defined, predefined, stored, pre-stored, pre-negotiated, pre-configured, solidified, or pre-burned.

[0330] Those skilled in the art will appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of this application.

[0331] Those skilled in the art will clearly understand that, for the convenience and brevity of description, the specific working processes of the systems, devices and units described above can refer to the corresponding processes in the aforementioned method embodiments and will not be repeated here.

[0332] The above description is merely a specific embodiment of the present application, but the scope of protection of the present application is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in this application should be included in the scope of protection of this application. Therefore, the scope of protection of this application should be based on the scope of protection of the claims.

Claims

1. A beam determination method, characterized in that: The method is performed by a user equipment UE, and the method includes: A first synchronization broadcast block SSB beam is determined, wherein the first SSB beam is used for random access.

2. The method according to claim 1, characterized in that: The method further comprises: receiving first information sent by the network device, The first information is used to indicate a gain difference between a sub-band full-duplex SBFD symbol and a non-SBFD symbol, wherein the non-SBFD symbol includes at least one of a downlink DL symbol and a flexible F symbol.

3. The method according to claim 2, characterized in that The method further comprises: receiving, on the SBFD symbol and the non-SBFD symbol, a plurality of SSB signals sent by the network device in a plurality of beam directions; Measuring the multiple SSB signals to determine first signal strengths of the multiple SSB signals; Based on the first information and the first signal strength, second signal strengths of the plurality of SSB signals are determined.

4. The method according to claim 3, characterized in that The receiving, on the SBFD symbol and the non-SBFD symbol, a plurality of SSB signals sent by the network device in a plurality of beam directions comprises: receiving, on the SBFD symbol, at least one first SSB signal among the plurality of SSB signals; At least one second SSB signal among the plurality of SSB signals is received on the non-SBFD symbol.

5. The method according to claim 3 or 4, characterized in that: The determining the first SSB beam comprises: determining the first SSB beam based on the second signal strength; Use the first SSB beam for random access.

6. The method according to claim 5, characterized in that The determining, based on the second signal strength, the first SSB beam comprises: The beam direction corresponding to the SSB signal with the second largest signal strength is determined as the first SSB beam.

7. The method according to claim 3 or 4, characterized in that: The determining the first SSB beam comprises: Based on the first signal strength, determining the first SSB beam; Use the first SSB beam for random access.

8. The method according to claim 7, characterized in that The determining, based on the first signal strength, the first SSB beam comprises: The beam direction corresponding to the SSB signal with the largest first signal strength is determined as the first SSB beam.

9. The method according to claim 7 or 8, characterized in that: The method further comprises: determining the second SSB beam based on the second signal strength; Reporting the second SSB beam to the network device; Use the second SSB beam to receive data after random access.

10. The method according to claim 9, characterized in that The determining, based on the second signal strength, the second SSB beam comprises: The beam direction corresponding to the SSB signal with the second largest signal strength is determined as the second SSB beam.

11. The method according to any one of claims 4 to 10, characterized in that The determining, based on the first information and the first signal strength, second signal strengths of the plurality of SSB signals comprises: determining a second signal strength of the first SSB signal as the first signal strength; A second signal strength of the second SSB signal is determined as a sum of the first signal strength and the gain difference.

12. The method according to claim 1, characterized in that The method comprises: In a SBFD symbol or a non-SBFD symbol, receiving a plurality of SSB signals sent by a network device in a plurality of beam directions; The multiple SSB signals are measured to determine first signal strengths of the multiple SSB signals.

13. The method according to claim 12, characterized in that The determining the first SSB beam comprises: Based on the first signal strength, the first SSB beam is determined.

14. The method according to claim 13, characterized in that The determining, based on the first signal strength, the first SSB beam comprises: The beam direction corresponding to the SSB signal with the largest first signal strength is determined as the first SSB beam.

15. A beam determination method, characterized in that: The method is performed by a network device, and the method includes: Send multiple simultaneous broadcast blocks SSB beam, The multiple SSB beams include a first SSB beam, which is used for random access and is determined by a user equipment UE.

16. The method according to claim 15, characterized in that The method further comprises: sending first information to the UE, The first information is used to indicate a gain difference between a sub-band full-duplex SBFD symbol and a non-SBFD symbol, and the non-SBFD symbol includes at least one of a downlink DL symbol and a flexible F symbol.

17. The method according to claim 16, characterized in that The sending of multiple synchronized broadcast block SSB beams comprises: The multiple SSB signals are transmitted to the UE in multiple beam directions on the SBFD symbols and the non-SBFD symbols.

18. The method according to claim 17, characterized in that The sending a plurality of SSB signals to the UE in a plurality of beam directions on the SBFD symbol and the non-SBFD symbol comprises: Sending at least one first SSB signal among the multiple SSB signals to the UE on the SBFD symbol; At least one second SSB signal among the multiple SSB signals is sent to the UE on the non-SBFD symbol.

19. The method according to any one of claims 15 to 18, characterized in that The method further comprises: receiving a second SSB beam reported by the UE; Use the second SSB beam to send data after random access.

20. The method according to claim 19, characterized in that The second SSB beam is the beam direction corresponding to the SSB signal with the second largest signal strength determined by the UE. The second signal strength is determined by the UE based on the first information and the first signal strength. The first signal strength is obtained by the UE measuring the multiple SSB signals.

21. The method according to claim 18, characterized in that A second signal strength of the first SSB signal is equal to the first signal strength; A second signal strength of the second SSB signal is equal to a sum of the first signal strength and the gain difference.

22. The method according to claim 15, characterized in that The sending of multiple synchronized broadcast block SSB beams comprises: In a SBFD symbol or a non-SBFD symbol, the multiple SSB signals are sent to the UE in multiple beam directions.

23. A beam determination device, characterized in that: The device is configured in a user equipment UE, and includes: A determination unit is used to determine a first synchronization broadcast block SSB beam, where the first SSB beam is used for random access.

24. A beam determination device, characterized in that: The device is configured in a network device and includes: A transmitting unit, configured to transmit a plurality of synchronized broadcast block SSB beams, The multiple SSB beams include a first SSB beam, which is used for random access and is determined by a user equipment UE.

25. A communication device, characterized in that: The device comprises a processor and a memory, wherein the memory stores a computer program, and the processor executes the computer program stored in the memory so that the device performs: A method as claimed in any one of claims 1 to 14; or A method as claimed in any one of claims 15 to 22.

26. A communication device, characterized in that: include: processor and interface circuitry, wherein The interface circuit is used to receive code instructions and transmit them to the processor; The processor is configured to execute the code instructions to perform: A method as claimed in any one of claims 1 to 14; or A method as claimed in any one of claims 15 to 22.

27. A computer-readable storage medium storing instructions, which, when executed, enable the following method to be implemented: A method as claimed in any one of claims 1 to 14; or A method as claimed in any one of claims 15 to 22.

28. A communication system, characterized in that: The system includes a user equipment UE and a network device, wherein: The UE is used to perform the method according to any one of claims 1 to 14; The network device is configured to execute the method according to any one of claims 15 to 22.

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