Beam management method, device, equipment, storage medium and computer program product

Abstract

The invention provides a beam management method and device, equipment, a storage medium and a computer program product, and the method comprises the steps: determining first information of a target beam serving a corresponding beam position of a terminal according to the position information of the terminal; the first information comprises time domain position information of the next sending moment of the corresponding SSB and a corresponding beam position level SSB period; and sending the first information to the terminal. According to the scheme, it can be ensured that the terminal accesses the target beam serving the beam position (corresponding to the terminal), service interruption caused by satellite movement is avoided, the communication performance of the terminal is improved, service continuity is guaranteed, and the problem that in the prior art, a beam management scheme cannot guarantee the service continuity is solved; meanwhile, according to the scheme, a hopping beam combination SSB period (namely the corresponding beam position level SSB period) can be configured for the terminal, so that the terminal can search only according to the SSB period serving the target beam of the terminal in a large-period hopping scene, and the effect of saving resources and power consumption is achieved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of communication, and in particular to a beam management method and device, equipment, storage medium and computer program product. BACKGROUND

[0002] In the prior art, a service beam can take into account the function of a control beam, when the network side knows the terminal position information, the service beam can be used to directly serve the terminal, but this implementation cannot meet the large-area coverage under the condition of uniform user distribution. To this end, the prior art proposes a solution, but the solution causes the access of an overflow beam (i.e., a first beam) when there is a beam outside the service beam that overflows to the terminal position, which cannot guarantee service continuity, i.e., the overflow beam (the first beam) will interfere with the terminal.

[0003] Therefore, the beam management scheme in the prior art has the problem of being unable to guarantee service continuity. SUMMARY

[0004] The present application aims to provide a beam management method, device, equipment, storage medium and computer program product to solve the problem of being unable to guarantee service continuity in the prior art.

[0005] To solve the above technical problem, the present application provides a beam management method applied to a network device, comprising:

[0006] According to the position information of the terminal, the first information of the target beam serving the corresponding wave position of the terminal is determined; the first information includes the time domain position information of the next transmission time of the corresponding synchronization signal block (SSB) and the corresponding wave position level SSB period.

[0007] The first information is sent to the terminal.

[0008] Optionally, the first information of the target beam serving the corresponding wave position of the terminal is determined according to the position information of the terminal, comprising:

[0009] According to the position information of the terminal, the wave position center point position information and the wave position radius, the corresponding wave position of the terminal is determined.

[0010] According to the corresponding wave position of the terminal, the first information of the target beam serving the corresponding wave position of the terminal is determined.

[0011] Optionally, the first information is sent to the terminal, comprising:

[0012] The transmission configuration indication (TCI) state information is sent to the terminal through radio resource control (RRC) signaling; the TCI state information includes the first information.

[0013] Optionally, the TCI state information comprises: an SSB location system frame number field and a wave position level SSB period field; the SSB location system frame number field is used to carry time domain position information of a next sending time of the corresponding SSB, and the wave position level SSB period field is used to carry the corresponding wave position level SSB period.

[0014] Embodiments of the present application also provide a beam management method, applied to a terminal, comprising:

[0015] receiving first information sent by a network device, the first information being related information of a target beam serving a wave position corresponding to the terminal, the first information comprising: time domain position information of a next sending time of a corresponding SSB and a corresponding wave position level SSB period;

[0016] controlling, according to the first information, a beam accessed by the terminal to be the target beam; and performing SSB measurement.

[0017] Optionally, the controlling, according to the first information, the beam accessed by the terminal to be the target beam comprises:

[0018] in a case where the beam currently accessed by the terminal does not match the first information, performing a beam switching operation to access the target beam.

[0019] Optionally, the receiving first information sent by the network device comprises:

[0020] receiving TCI state information sent by the network device through RRC signaling; the TCI state information comprises the first information.

[0021] Optionally, the TCI state information comprises: an SSB location system frame number field and a wave position level SSB period field; the SSB location system frame number field is used to carry time domain position information of a next sending time of the corresponding SSB, and the wave position level SSB period field is used to carry the corresponding wave position level SSB period.

[0022] Embodiments of the present application also provide a beam management apparatus, applied to a network device, comprising:

[0023] a first determining module configured to determine, according to position information of a terminal, first information of a target beam serving a wave position corresponding to the terminal; the first information comprising: time domain position information of a next sending time of a corresponding SSB and a corresponding wave position level SSB period;

[0024] a first sending module configured to send the first information to the terminal.

[0025] Optionally, the first information of the target beam serving the wave position corresponding to the terminal is determined according to the position information of the terminal, and the first information comprises:

[0026] The wave position corresponding to the terminal is determined according to the position information of the terminal, the position information of the wave position center point and the wave position radius.

[0027] The first information of the target beam serving the wave position corresponding to the terminal is determined according to the wave position corresponding to the terminal.

[0028] Optionally, the first information is sent to the terminal, and the first information comprises:

[0029] The transmission configuration indication (TCI) state information is sent to the terminal through radio resource control (RRC) signaling, and the TCI state information comprises the first information.

[0030] Optionally, the TCI state information comprises an SSB position system frame number field and a wave position level SSB period field, the SSB position system frame number field is used to carry time domain position information of a next sending time of the corresponding SSB, and the wave position level SSB period field is used to carry a corresponding wave position level SSB period.

[0031] Embodiments of the present application also provide a beam management device applied to a terminal, comprising:

[0032] A first receiving module is configured to receive first information sent by a network device, the first information being related information of a target beam serving a wave position corresponding to the terminal, and the first information comprising time domain position information of a next sending time of a corresponding SSB and a corresponding wave position level SSB period.

[0033] A first processing module is configured to control, according to the first information, a beam accessed by the terminal to be the target beam and perform SSB measurement.

[0034] Optionally, the first processing module is configured to control, according to the first information, the beam accessed by the terminal to be the target beam, and the control comprises:

[0035] In a case where the beam currently accessed by the terminal does not match the first information, performing a beam switching operation to access the target beam.

[0036] Optionally, the first information is received from the network device, and the first information comprises:

[0037] The TCI state information sent by the network device through RRC signaling is received, and the TCI state information comprises the first information.

[0038] Optionally, the TCI state information comprises: an SSB location system frame number field and a wave position level SSB period field; the SSB location system frame number field is used to carry time domain position information of a next transmission time of the corresponding SSB, and the wave position level SSB period field is used to carry the corresponding wave position level SSB period.

[0039] Embodiments of the present application also provide a beam management device, which is a network device, comprising: a processor and a transceiver;

[0040] The processor is configured to determine, according to position information of a terminal, first information of a target beam serving a wave position corresponding to the terminal; the first information comprises: time domain position information of a next transmission time of a corresponding synchronization signal block (SSB) and a corresponding wave position level SSB period.

[0041] The transceiver is configured to send the first information to the terminal.

[0042] Optionally, the determining, according to the position information of the terminal, of the first information of the target beam serving the wave position corresponding to the terminal comprises:

[0043] determining, according to the position information of the terminal, wave center point position information and a wave radius, the wave position corresponding to the terminal.

[0044] determining, according to the wave position corresponding to the terminal, the first information of the target beam serving the wave position corresponding to the terminal.

[0045] Optionally, the sending, to the terminal, of the first information comprises:

[0046] sending, to the terminal, transmission configuration indication (TCI) state information through radio resource control (RRC) signaling; the TCI state information comprises the first information.

[0047] Optionally, the TCI state information comprises: an SSB location system frame number field and a wave position level SSB period field; the SSB location system frame number field is used to carry time domain position information of a next transmission time of the corresponding SSB, and the wave position level SSB period field is used to carry the corresponding wave position level SSB period.

[0048] Embodiments of the present application also provide a beam management device, which is a terminal, comprising: a processor and a transceiver;

[0049] The processor is configured to receive, through the transceiver, first information sent by a network device, the first information being related information of a target beam serving a wave position corresponding to the terminal, the first information comprising: time domain position information of a next transmission time of a corresponding SSB and a corresponding wave position level SSB period.

[0050] According to the first information, a beam accessed by the terminal is controlled to be the target beam; and SSB measurement is performed.

[0051] Optionally, the controlling, according to the first information, of the beam accessed by the terminal to be the target beam comprises:

[0052] In a case where the beam currently accessed by the terminal does not match the first information, a beam switching operation is performed to access the target beam.

[0053] Optionally, the receiving of the first information sent by the network device comprises:

[0054] The network device sends TCI state information through RRC signaling; the TCI state information comprises the first information.

[0055] Optionally, the TCI state information comprises an SSB position system frame number field and a wave position level SSB period field; the SSB position system frame number field is used to carry time domain position information of a next sending time of the corresponding SSB, and the wave position level SSB period field is used to carry the corresponding wave position level SSB period.

[0056] Embodiments of the present application further provide a beam management device, comprising a memory, a processor and a computer program stored in the memory and executable on the processor; the processor implements the beam management method of the network device side or the terminal side when executing the program.

[0057] Embodiments of the present application further provide a readable storage medium having a program stored thereon, the program being executable by a processor to implement steps in the beam management method of the network device side or the terminal side.

[0058] Embodiments of the present application further provide a computer program product comprising computer instructions, the computer instructions being executable by a processor to implement steps in the beam management method of the network device side or the terminal side.

[0059] The above technical solutions of the present application have the following beneficial effects:

[0060] In the above scheme, the beam management method determines first information of a target beam serving a wave position corresponding to a terminal according to position information of the terminal; the first information includes time domain position information of a next transmission time of a corresponding synchronization signal block (SSB) and a corresponding wave position level SSB period; the first information is sent to the terminal; the target beam serving the wave position corresponding to the terminal can be ensured, service interruption caused by satellite movement can be avoided, terminal communication performance can be improved, service continuity can be ensured, and the problem that service continuity cannot be ensured in the prior art beam management scheme can be solved; meanwhile, the terminal can search according to the SSB period of the target beam serving itself only in a large period hopping scenario by configuring a hop beam combination SSB period (that is, the corresponding wave position level SSB period) for the terminal, so that the effect of saving resources and power consumption is achieved. BRIEF DESCRIPTION OF DRAWINGS

[0061] Figure 1 A time slot level hop beam timing arrangement diagram of an embodiment of the present application;

[0062] Figure 2 An SSB period nesting diagram of an embodiment of the present application;

[0063] Figure 3 An overflow beam diagram of an embodiment of the present application;

[0064] Figure 4 An overflow beam access diagram of an embodiment of the present application;

[0065] Figure 5 An SSB detection diagram of an embodiment of the present application;

[0066] Figure 6 A beam management method flow diagram of an embodiment of the present application Figure 1 ;

[0067] Figure 7 A beam management method flow diagram of an embodiment of the present application Figure 2 ;

[0068] Figure 8 A beam management method specific implementation flow diagram of an embodiment of the present application Figure 1 ;

[0069] Figure 9 A beam switching diagram of an embodiment of the present application;

[0070] Figure 10 A beam management method specific implementation flow diagram of an embodiment of the present application Figure 2 ;

[0071] Figure 11 A beam management device structure diagram of an embodiment of the present applicationFigure 1 ;

[0072] Figure 12 Structure diagram of a beam management device according to an embodiment of the present application Figure 2 ;

[0073] Figure 13 Structure diagram of a beam management device according to an embodiment of the present application Figure 1 ;

[0074] Figure 14 Structure diagram of a beam management device according to an embodiment of the present application Figure 2 . DETAILED DESCRIPTION

[0075] To make the technical problems, technical solutions and advantages of the present application clearer, the following will be described in detail with reference to the accompanying drawings and specific embodiments.

[0076] Firstly, the related content of the present solution will be introduced.

[0077] In NTN (non-terrestrial network), in the scenario of direct satellite connection for mobile phones, in order to reduce the power demand of the satellite, the beam hopping can be used to improve the coverage area of the satellite. Taking the low frequency band below 6GHz: subcarrier spacing SCS = 15KHz, 4 SSB Index (synchronization signal block index) as an example, the time slot level beam hopping timing arrangement of 40ms SSB period is as shown in Figure 1 , assuming that the number of beams is 16, 32 beam positions can be scanned within 40ms:

[0078] slot 0: 8 beams bind SSB0, 8 beams bind SSB1, 16 beam positions are completed for SSB scanning;

[0079] slot 1: 8 beams bind SSB2, 8 beams bind SSB3, and 16 beam positions are completed for SSB scanning.

[0080] Specifically, in order to improve the range of satellite beam scanning, for the in-band frame synchronization mode, the SSB period nesting mode can be used, for example, as shown in Figure 2 , the base station configures 160ms SSB large period, and 32 beam positions are scanned in 40ms period, another 32 beam positions are scanned in the next 40ms, and 128 beam positions are scanned in 160ms after 4 groups of 40ms SSB period ends. In the 160ms SSB period, the range of beam scanning is improved to 4 times of the traditional mode.

[0081] According to the current standard, the terminal can perform periodic SSB measurement according to the SSB period, and the SSB period can be configured as 5ms, 10ms, 20ms, 40ms, 80ms or 160ms.

[0082] According to the above beam hopping scheme, taking the case of a base station configuring an SSB period of 40ms as an example, within 160ms, the SSB on the same beam position will only be transmitted once. In actual satellite network coverage, the current scheme mostly uses a steered beam to cover the center of the beam position. With the movement of the satellite, the beam coverage area may expand and contract slightly with the change of the pitch angle, which will cause the beam coverage to overflow, resulting in the possibility that a terminal on a beam position may receive an SSB serving a beam of another beam position. However, if the terminal accesses an overflow beam that does not belong to the serving beam position of the terminal, the overflow beam may soon drift away and cannot provide continuous and reliable service to the terminal, and will also affect the terminal's access to the serving beam of the beam position. Among them, the overflow beam refers to a beam that is not serving the current beam position but can be received by a terminal, which can be referred to as a first beam, for example:

[0083] As shown in Figure 3 , at time 1, UE 1 in beam position 65 first searches for beam 1 SSB serving beam position 1 in 0-40ms of a certain 160ms period, performs downlink synchronization and access, and subsequently searches for SSB serving beam position 65 and will not re-access. However, when the satellite moves to time 2, the first beam serving beam position 1 no longer overflows to the position of UE 1, and the UE's service will be interrupted until the UE searches for a new beam SSB that can be accessed. However:

[0084] If the terminal is configured with a 160ms period (i.e., the period for detecting SSB), when the terminal accesses the first beam (overflow beam), it will always start periodic search according to the first beam, so it will never search for the SSB of the serving beam (which can be referred to as a second beam) of the beam position.

[0085] As shown in Figure 4 , the terminal accesses the first beam in a certain 0-40ms, and according to the 160ms period, it will always search in 0-40ms (for example, access at a position of 1ms, then always search at this position), so it cannot search for the SSB of the second beam serving beam position 65.

[0086] In addition, as shown in Figure 5As shown, if the terminal is configured to perform SSB detection at a 40ms cycle, only one of the four detections within 160ms will find a usable SSB. For the terminal, the other three searches without an SSB will result in wasted processing resources and power consumption. In other words, the terminal will cause power consumption and resource waste when performing small-cycle beam scanning.

[0087] Based on the above, this application addresses the problem that existing beam management schemes cannot guarantee service continuity, and provides a beam management method applicable to network devices, such as... Figure 6 As shown, it includes:

[0088] Step 61: Based on the location information of the terminal, determine the first information of the target beam serving the corresponding waveband of the terminal; the first information includes: the time domain location information of the next transmission time of the corresponding synchronization signal block SSB and the corresponding waveband-level SSB period;

[0089] Step 62: Send the first information to the terminal.

[0090] The corresponding wave level SSB period can be implemented as the SSB detection period, but it is not limited to this.

[0091] The beam management method provided in this application determines the first information of the target beam serving the corresponding wavelength position of the terminal based on the terminal's location information. The first information includes: the time-domain location information of the next transmission time of the corresponding synchronization signal block (SSB) and the corresponding wavelength position-level SSB period. The first information is sent to the terminal. This method can ensure that the terminal accesses the target beam serving its own wavelength position, avoiding service interruptions caused by satellite movement, improving terminal communication performance, ensuring service continuity, and solving the problem that existing beam management schemes cannot guarantee service continuity. At the same time, this scheme can also configure the terminal with a hopping beam combination SSB period (i.e., the aforementioned corresponding wavelength position-level SSB period), so that the terminal can search only according to the SSB period of the target beam serving itself in large cycle jump scenarios, thereby saving resources and power consumption.

[0092] The step of determining the first information of the target beam serving the corresponding wavelength position of the terminal based on the terminal's location information includes: determining the corresponding wavelength position of the terminal based on the terminal's location information, the wavelength position center point location information, and the wavelength position radius; and determining the first information of the target beam serving the corresponding wavelength position of the terminal based on the corresponding wavelength position of the terminal. This allows for accurate acquisition of the first information. The step of determining the corresponding wavelength position of the terminal based on the terminal's location information, the wavelength position center point location information, and the wavelength position radius may include: if the distance between the terminal's location indicated by the terminal's location information and the wavelength position center point (wavelength position center point location information) is less than the wavelength position radius, it can be determined that the terminal is within that wavelength position, but this is not a limitation.

[0093] In this embodiment of the application, sending the first information to the terminal includes: sending Transmission Configuration Indication (TCI) status information to the terminal via Radio Resource Control (RRC) signaling; the TCI status information includes the first information. This allows for the specific implementation of the transmission of the first information.

[0094] Furthermore, the beam management method may further include: sending Media Access Control Element (MAC CE) information and Downlink Control Information (DCI) to the terminal; wherein the MAC CE information is used to activate the TCI status identifier corresponding to the Physical Downlink Control Channel (PDCCH), and the DCI is used to activate the TCI status identifier corresponding to the Physical Downlink Shared Channel (PDSCH). This can support the activation of the corresponding TCI status, enabling the terminal to perform the operation "based on the first information, control the beam accessed by the terminal to be the target beam; and perform SSB measurement," which can be implemented by activating the terminal to access the target beam through MAC CE and DCI, but is not limited to this.

[0095] The TCI status information includes: an SSB location system frame number field and a wavelet-level SSB period field. The SSB location system frame number field carries the time-domain location information of the next transmission time of the corresponding SSB, and the wavelet-level SSB period field carries the corresponding wavelet-level SSB period. This allows for the transmission of relevant information. The time-domain location information of the next transmission time of the corresponding SSB can be implemented as the system frame number of the next transmission time, but is not limited to this.

[0096] This application also provides a beam management method for use in a terminal, such as... Figure 7 As shown, it includes:

[0097] Step 71: Receive the first information sent by the network device. The first information is the relevant information of the target beam serving the corresponding wave position of the terminal. The first information includes: the time domain position information of the next transmission time of the corresponding SSB and the corresponding wave position-level SSB period.

[0098] Step 72: Based on the first information, control the beam accessed by the terminal to be the target beam; and perform SSB measurement.

[0099] The phrase "controlling the beam accessed by the terminal to be the target beam" can include: if the beam currently accessed by the terminal does not match the first information, controlling the switch to the target beam corresponding to the first information; if the beam currently accessed by the terminal matches the first information, controlling the maintenance of the currently accessed beam (i.e., the target beam) without switching. This can be understood as switching to the target beam if the currently accessed beam is an overflow beam, and not switching if the currently accessed beam is the target beam, but this is not a limitation.

[0100] The SSB measurement may include, but is not limited to, performing SSB measurement at the corresponding time-domain position according to the wavelet-level SSB period based on the time-domain position information.

[0101] The beam management method provided in this application receives first information sent by a network device. This first information is related to a target beam serving the corresponding wavelength position of the terminal. The first information includes: the time-domain location information of the next transmission time of the corresponding SSB and the corresponding wavelength position-level SSB period. Based on this first information, the method controls the beam accessed by the terminal to be the target beam and performs SSB measurement. This ensures that the terminal accesses the target beam serving its own wavelength position, avoiding service interruptions caused by satellite movement, improving terminal communication performance, ensuring service continuity, and solving the problem of existing beam management schemes failing to guarantee service continuity. Furthermore, this method can configure a hopping beam combination SSB period (i.e., the aforementioned corresponding wavelength position-level SSB period) for the terminal, allowing the terminal to search only according to the SSB period serving its own target beam in large cycle-hopping scenarios, achieving resource and power saving.

[0102] The step of controlling the beam accessed by the terminal to be the target beam based on the first information includes: performing a beam switching operation to access the target beam when the beam currently accessed by the terminal does not match the first information. This can specifically realize the access of a target beam in a certain scenario.

[0103] In this embodiment of the application, the first information sent by the receiving network device includes: receiving TCI status information sent by the receiving network device via RRC signaling; the TCI status information includes the first information. This allows for the specific implementation of the transmission of the first information.

[0104] Furthermore, the beam management method may further include: receiving MAC CE information and DCI sent by the network device; wherein the MAC CE information is used to activate the TCI status identifier corresponding to the PDCCH, and the DCI is used to activate the TCI status identifier corresponding to the PDSCH; the step of performing a beam switching operation to access the target beam includes: performing a beam switching operation according to the MAC CE information and DCI to access the target beam. This can support the activation of the corresponding TCI status, and the terminal can perform the operation "according to the first information, control the beam accessed by the terminal to be the target beam; and perform SSB measurement", which can be understood as the network device activating the terminal to access the target beam through MAC CE and DCI, but is not limited to this.

[0105] The TCI status information includes: an SSB location system frame number field and a wavelet-level SSB period field. The SSB location system frame number field carries the time-domain location information of the next transmission time of the corresponding SSB, and the wavelet-level SSB period field carries the corresponding wavelet-level SSB period. This allows for the transmission of relevant information. The time-domain location information of the next transmission time of the corresponding SSB can be implemented as the system frame number of the next transmission time, but is not limited to this.

[0106] It should be noted that the relevant content on the network device side and the terminal side can be referred to each other, and the repeated parts will not be repeated.

[0107] The beam management method provided in the embodiments of this application will be illustrated below with examples, taking a base station as an example of a network device.

[0108] To address the aforementioned technical problems, this application provides a beam management method, specifically a beam management method for NTN beam hopping scenarios, which may include, for example:

[0109] After the terminal initially searches and connects to the corresponding beam (which could be the first or second beam) according to a 20ms SSB cycle, the base station determines the beam position information (such as the beam identifier and corresponding SSB identifier) ​​based on the terminal's location information and determines the second beam's SSB time-domain position (corresponding to the time-domain position information of the next transmission time of the aforementioned corresponding SSB) based on this information. Then, it triggers the terminal beam switching procedure (sending the determined information to the terminal). The terminal can switch to the second beam serving this beam position according to the information sent by the base station and perform SSB measurement based on the (second beam) SSB time-domain position and beam position-level SSB cycle information sent by the base station. More specifically, it can be as follows... Figure 8 As shown, this solution includes the following operations:

[0110] 1. The terminal (UE) performs an initial search every 20ms. After finding a suitable SSB, it accesses the beam, and the base station (NTN-NodeB) obtains the terminal's location information. The base station can obtain the terminal's location information through various methods, such as requesting subscription from the core network or the terminal actively reporting it; no restrictions are imposed here.

[0111] Specifically, such as Figure 8 As shown, this scheme performs beam management based on SSB for initial access, including: assuming the base station performs initial access and sends the first beam SSB; the UE performs beam measurement and beam reporting, and beam reporting can be implemented by implicitly indicating the SSB through the Physical Random Access Channel (PRACH).

[0112] 2. The base station can calculate the physical band position ID of the terminal based on its location. For example, if the distance d between the terminal's location and the center point of band position i is less than the band position radius, the terminal is considered to be in that band position.

[0113] d(wave position center point - UE position) ≤ wave position radius. This operation corresponds to determining the corresponding wave position of the terminal based on the terminal's position information, wave position center point position information, and wave position radius.

[0114] Among them, the UE position can be as follows: Figure 8 The data shown is what the terminal reports, but it is not limited to this.

[0115] 3. The base station can calculate the beam information serving that beam position (such as the corresponding beam information and SSB information) based on the calculated physical beam position ID; it can correspond to... Figure 8 The footprint ID (second beam and SSB-index) is used to determine the time-domain position of the next transmission time of the corresponding SSB based on the beam information (which can correspond to...). Figure 8The ssb-PositionsSFN in the text can be used to determine relevant information based on the ID and the current correspondence, but it is not limited to this.

[0116] Furthermore, the base station can also configure the terminal with a wavelet-level SSB period.

[0117] This operation 3 can correspond to the network device determining the first information of the target beam serving the corresponding wave position of the terminal based on the wave position of the terminal.

[0118] Among them, operations 2 and 3 above can correspond to Figure 8 The UE location reporting and beam calculation after the RRC connection includes: the base station obtaining the UE location information and performing beam calculation.

[0119] 4. The base station indicates the beam information, as well as the time domain position of the next transmission time of the SSB and the beam-level SSB period (i.e. the period for detecting the SSB). This period can be configuration information, which is used to enable the terminal to search only according to the SSB period of the second beam serving itself in the case of large period jump, so as to save resources and power consumption.

[0120] This operation 4 can correspond to sending the first information to the terminal as described above; it can correspond to... Figure 8 The base station sends the following information: footprint id (second beam), ssb-index, ssb-PositionsSFN, and ssb-periodicityServingCell-footprint.

[0121] 5. The terminal (in the case where the target beam is different from the currently accessed beam, i.e., the accessed beam is an overflow beam) switches to the target beam according to the information in operation 4 (corresponding to the above-mentioned beam switching operation performed when the currently accessed beam of the terminal does not match the first information, and accessing the target beam). Based on the SSB time-domain location information sent by the base station, it performs SSB measurement at the corresponding time-domain location according to the SSB period at the wavelet level (periodic SSB update). If the target beam is consistent with the currently accessed beam, beam switching may not be performed.

[0122] This operation 5 can correspond to Figure 8 The determination of the receiving beam based on ssb-PositionsSFN can be understood as determining the target beam, but it is not limited to this.

[0123] The above solutions can be detailed as follows: Figure 9As shown in the diagram (SSB and beam shift pattern issued by the base station), the terminal performs SSB detection to initially access the overflow beam, and then performs base station beam management according to this scheme. After that, the terminal can switch beams and perform periodic measurements according to the new starting point and cycle.

[0124] The following provides specific examples illustrating the information dissemination by the base station in this scheme.

[0125] The base station can configure the SSB time-domain location and period via RRC (Radio Resource Control) and TCI (Transmission Configuration Indicator) state; that is, the time-domain location and period are carried in the TCI state information and transmitted via RRC; corresponding to the above-mentioned RRC signaling, the base station can send the Transmission Configuration Indicator TCI state information to the terminal; the TCI state information includes the first information.

[0126] Subsequently, this solution can activate and use the TCI state via MAC CE and DCI. After activation, the terminal can determine whether to switch beams based on relevant information. Specifically, MAC CE (Media Access Control Element) can activate the TCI state ID corresponding to the PDCCH (Physical Downlink Control Channel), and DCI (Downlink Control Information) can indicate the TCI state ID corresponding to the PDSCH (Physical Downlink Shared Channel).

[0127] Specifically, the parameter ssb-PositionsSFN (SSB position system frame number) can be added to the RRC signaling TCI-StateId information element. This parameter can represent the system frame number of the next transmission time of the SSB serving the beam of that wavelength position (i.e., the SSB of the beam serving that wavelength position). (Corresponding to the above-mentioned SSB position system frame number field used to carry the time domain position information of the next transmission time of the corresponding SSB). The parameter wavelength-level SSB period: ssb-periodicityServingCell-footprint can also be added. This parameter represents the wavelength-level SSB period in the NTN hopping beam scenario (corresponding to the above-mentioned wavelength-level SSB period field used to carry the corresponding wavelength-level SSB period). Taking the current technical solution of 128 wavelength positions cyclically within 160ms as an example, ssb-periodicityServingCell-footprint can take the value ms160 (i.e., 160ms).

[0128] Based on the above, this solution can be implemented as follows: Figure 10As shown, this scheme performs: (1) Initial access beam management based on SSB, including: assuming the base station performs initial access by sending SSB; the UE performs beam measurement and beam reporting. Beam reporting can be implemented by implicitly indicating SSB through PRACH. (2) UE location reporting and beam calculation after RRC connection, including: the base station obtains UE location information, performs beam calculation, and obtains footprint id, ssb-index, and ssb-PositionsSFN. (3) Base station sends PDCCH+PDSCH: RRC is equipped with TCI state, and activated by MAC CE + DCI indication. The terminal determines the receiving beam according to the TCI state. Among them, the terminal position (UE position) can be as follows. Figure 10 The data shown is what the terminal reports, but it is not limited to this.

[0129] It should be noted that the relevant content in the above-mentioned figures can be referred to each other, and the repeated parts will not be repeated.

[0130] Therefore, the solutions provided in the embodiments of this application involve:

[0131] 1. A beam management process in an NTN beam hopping scenario, wherein the base station calculates the beam position ID by obtaining the terminal's location information, and activates the terminal to access the target beam through MAC CE and DCI.

[0132] 2. The base station calculates the time domain position of the correct serving beam (i.e., the second beam) using the beam position ID, adds the parameter ssb-PositionsSFN and informs the terminal.

[0133] 3. The base station calculates the SSB period of the correct serving beam (i.e., the second beam) using the beam ID, adds the parameter ssb-periodicityServingCell-footprint, and informs the terminal.

[0134] In summary, to prevent spillover beams (the first beam) from interfering with terminal performance, this solution proposes a method where the terminal reports its location information, the base station calculates the time-domain position of the second beam's SSB (corresponding to the time-domain position information of the next transmission time of the corresponding SSB), and triggers the terminal's beam switching. This ensures that the terminal can access the (second) beam serving its own beam position, avoiding service interruptions caused by satellite movement and improving terminal communication performance. Simultaneously, by configuring the terminal with a hopping beam combination SSB period (corresponding to the corresponding beam-level SSB period), the terminal can search only according to the SSB period serving its own (second beam) in large period transition scenarios, achieving resource and power saving.

[0135] This application also provides a beam management device for use in network equipment, such as... Figure 11 As shown, it includes:

[0136] The first determining module 111 is used to determine the first information of the target beam serving the corresponding wave position of the terminal based on the location information of the terminal; the first information includes: the time domain location information of the next transmission time of the corresponding synchronization signal block SSB and the corresponding wave position level SSB period;

[0137] The first sending module 112 is used to send the first information to the terminal.

[0138] The beam management device provided in this application determines the first information of the target beam serving the corresponding wavelength position of the terminal based on the terminal's location information. The first information includes: the time-domain location information of the next transmission time of the corresponding synchronization signal block (SSB) and the corresponding wavelength position-level SSB period. The first information is sent to the terminal. This ensures that the terminal accesses the target beam serving its own wavelength position, avoiding service interruptions caused by satellite movement, improving terminal communication performance, ensuring service continuity, and solving the problem that existing beam management schemes cannot guarantee service continuity. At the same time, this scheme can also configure the terminal with a hopping beam combination SSB period (i.e., the aforementioned corresponding wavelength position-level SSB period), so that the terminal can search only according to the SSB period of the target beam serving itself in large period jump scenarios, thereby saving resources and power consumption.

[0139] The step of determining the first information of the target beam serving the corresponding wavelength position of the terminal based on the terminal's location information includes: determining the corresponding wavelength position of the terminal based on the terminal's location information, the wavelength position center point location information, and the wavelength position radius; and determining the first information of the target beam serving the corresponding wavelength position of the terminal based on the corresponding wavelength position of the terminal.

[0140] In this embodiment of the application, sending the first information to the terminal includes: sending Transmission Configuration Indication (TCI) status information to the terminal via Radio Resource Control (RRC) signaling; the TCI status information includes the first information.

[0141] In this embodiment of the application, the TCI status information includes: an SSB location system frame number field and a wavelet-level SSB period field; the SSB location system frame number field is used to carry the time-domain location information of the next transmission time of the corresponding SSB, and the wavelet-level SSB period field is used to carry the corresponding wavelet-level SSB period.

[0142] The aforementioned implementation embodiments of the beam management method on the network device side are all applicable to the embodiments of the beam management device, and can achieve the same technical effect.

[0143] This application also provides a beam management device for use in a terminal, such as... Figure 12 As shown, it includes:

[0144] The first receiving module 121 is used to receive first information sent by the network device. The first information is related information of the target beam serving the corresponding wave position of the terminal. The first information includes: the time domain position information of the next transmission time of the corresponding SSB and the corresponding wave position-level SSB period.

[0145] The first processing module 122 is used to control the beam accessed by the terminal to be the target beam according to the first information; and to perform SSB measurement.

[0146] The beam management device provided in this application receives first information sent by a network device. The first information is related to the target beam serving the corresponding band position of the terminal. The first information includes: the time-domain position information of the next transmission time of the corresponding SSB and the corresponding band position-level SSB period. Based on the first information, the device controls the beam accessed by the terminal to be the target beam and performs SSB measurement. This ensures that the terminal accesses the target beam serving its own (terminal's) band position, avoiding service interruptions caused by satellite movement, improving terminal communication performance, ensuring service continuity, and solving the problem that existing beam management schemes cannot guarantee service continuity. At the same time, this solution can also configure the terminal with a hopping beam combination SSB period (i.e., the aforementioned corresponding band position-level SSB period), so that the terminal can search only according to the SSB period serving its own target beam in large period jump scenarios, achieving the effect of saving resources and power consumption.

[0147] The step of controlling the beam accessed by the terminal to be the target beam according to the first information includes: performing a beam switching operation to access the target beam when the beam currently accessed by the terminal does not match the first information.

[0148] In this embodiment of the application, the first information sent by the receiving network device includes: receiving TCI status information sent by the receiving network device through RRC signaling; the TCI status information includes the first information.

[0149] In this embodiment of the application, the TCI status information includes: an SSB location system frame number field and a wavelet-level SSB period field; the SSB location system frame number field is used to carry the time-domain location information of the next transmission time of the corresponding SSB, and the wavelet-level SSB period field is used to carry the corresponding wavelet-level SSB period.

[0150] The aforementioned implementation embodiments of the beam management method on the terminal side are all applicable to the embodiments of the beam management device and can achieve the same technical effect.

[0151] This application also provides a beam management device, which is a network device, such as... Figure 13 As shown, it includes: a processor 131 and a transceiver 132;

[0152] The processor 131 is configured to determine first information of the target beam serving the corresponding wave position of the terminal based on the terminal's location information; the first information includes: time-domain location information of the next transmission time of the corresponding synchronization signal block (SSB) and the corresponding wave position-level SSB period;

[0153] The transceiver 132 sends the first information to the terminal.

[0154] The beam management device provided in this application determines the first information of the target beam serving the corresponding beam position of the terminal based on the terminal's location information. The first information includes: the time-domain location information of the next transmission time of the corresponding synchronization signal block (SSB) and the corresponding beam position-level SSB period. The device sends the first information to the terminal. This ensures that the terminal accesses the target beam serving its own beam position, avoiding service interruptions caused by satellite movement, improving terminal communication performance, ensuring service continuity, and solving the problem that existing beam management schemes cannot guarantee service continuity. Furthermore, this solution can configure the terminal with a hopping beam combination SSB period (i.e., the aforementioned corresponding beam position-level SSB period), enabling the terminal to search only according to the SSB period of the target beam serving itself in large period jump scenarios, thus saving resources and power consumption.

[0155] The step of determining the first information of the target beam serving the corresponding wavelength position of the terminal based on the terminal's location information includes: determining the corresponding wavelength position of the terminal based on the terminal's location information, the wavelength position center point location information, and the wavelength position radius; and determining the first information of the target beam serving the corresponding wavelength position of the terminal based on the corresponding wavelength position of the terminal.

[0156] In this embodiment of the application, sending the first information to the terminal includes: sending Transmission Configuration Indication (TCI) status information to the terminal via Radio Resource Control (RRC) signaling; the TCI status information includes the first information.

[0157] In this embodiment of the application, the TCI status information includes: an SSB location system frame number field and a wavelet-level SSB period field; the SSB location system frame number field is used to carry the time-domain location information of the next transmission time of the corresponding SSB, and the wavelet-level SSB period field is used to carry the corresponding wavelet-level SSB period.

[0158] The aforementioned implementation embodiments of the beam management method on the network device side are all applicable to the embodiments of the beam management device and can achieve the same technical effect.

[0159] This application also provides a beam management device, which is a terminal, such as... Figure 14 As shown, it includes: processor 141 and transceiver 142;

[0160] The processor 141 is used to receive first information sent by the network device through the transceiver 142. The first information is related information of the target beam serving the corresponding waveband of the terminal. The first information includes: the time domain position information of the next transmission time of the corresponding SSB and the corresponding waveband-level SSB period.

[0161] Based on the first information, the terminal is controlled to access the target beam; and SSB measurement is performed.

[0162] The beam management device provided in this application embodiment receives first information sent by a network device. The first information is related to the target beam serving the corresponding band position of the terminal. The first information includes: the time-domain position information of the next transmission time of the corresponding SSB and the corresponding band position-level SSB period. Based on the first information, the device controls the beam accessed by the terminal to be the target beam and performs SSB measurement. This can ensure that the terminal accesses the target beam serving its own (terminal's) band position, avoiding service interruptions caused by satellite movement, improving terminal communication performance, ensuring service continuity, and solving the problem that existing beam management schemes cannot guarantee service continuity. At the same time, this solution can also configure the terminal with a hopping beam combination SSB period (i.e., the aforementioned corresponding band position-level SSB period), so that the terminal can search only according to the SSB period serving its own target beam in large period jump scenarios, achieving the effect of saving resources and power consumption.

[0163] The step of controlling the beam accessed by the terminal to be the target beam according to the first information includes: performing a beam switching operation to access the target beam when the beam currently accessed by the terminal does not match the first information.

[0164] In this embodiment of the application, the first information sent by the receiving network device includes: receiving TCI status information sent by the receiving network device through RRC signaling; the TCI status information includes the first information.

[0165] In this embodiment of the application, the TCI status information includes: an SSB location system frame number field and a wavelet-level SSB period field; the SSB location system frame number field is used to carry the time-domain location information of the next transmission time of the corresponding SSB, and the wavelet-level SSB period field is used to carry the corresponding wavelet-level SSB period.

[0166] The aforementioned implementation embodiments of the beam management method on the terminal side are all applicable to the embodiments of the beam management device and can achieve the same technical effect.

[0167] This application also provides a beam management device, including a memory, a processor, and a computer program stored in the memory and executable on the processor; when the processor executes the program, it implements the above-described beam management method on the network device side or terminal side.

[0168] The aforementioned implementation embodiments of the beam management method on the network device side or terminal side are all applicable to the embodiments of the beam management device and can achieve the same technical effect.

[0169] This application also provides a readable storage medium storing a program that, when executed by a processor, implements the steps in the beam management method described above for the network device side or terminal side.

[0170] The aforementioned implementation embodiments of the beam management method on the network device side or terminal side are all applicable to the embodiments of the readable storage medium and can achieve the same technical effect.

[0171] This application also provides a computer program product, including computer instructions. When the computer instructions are executed by a processor, they implement the various processes of the above-described beam management method embodiments on the network device side or terminal side, and can achieve the same technical effect. To avoid repetition, they will not be described again here.

[0172] It should be noted that many of the functional components described in this specification are referred to as modules in order to more specifically emphasize the independence of their implementation.

[0173] In this embodiment, the module can be implemented in software so that it can be executed by various types of processors. For example, an identified executable code module may include one or more physical or logical blocks of computer instructions, which may be constructed as objects, procedures, or functions. Nevertheless, the executable code of the identified module does not need to be physically located together, but may include different instructions stored in different bits, which, when logically combined, constitute the module and achieve the module's intended purpose.

[0174] In practice, an executable code module can be a single instruction or many instructions, and can even be distributed across multiple different code segments, different programs, and across multiple memory devices. Similarly, operational data can be identified within the module and can be implemented in any suitable form and organized within any suitable type of data structure. This operational data can be collected as a single dataset or distributed across different locations (including different storage devices), and can exist, at least in part, solely as electronic signals within the system or network.

[0175] When a module can be implemented using software, considering the current level of hardware technology, modules that can be implemented in software can be implemented using hardware circuits by those skilled in the art to achieve the corresponding functions, without considering cost. These hardware circuits include conventional very-large-scale integrated circuits (VLSI) or gate arrays, as well as existing semiconductors such as logic chips and transistors, or other discrete components. Modules can also be implemented using programmable hardware devices, such as field-programmable gate arrays, programmable array logic, and programmable logic devices.

[0176] The above describes the preferred embodiments of this application. It should be noted that those skilled in the art can make several improvements and modifications without departing from the principles described in this application, and these improvements and modifications should also be considered within the scope of protection of this application.

Claims

1. A beam management method applied to network devices, characterized in that, include: Based on the location information of the terminal, the first information of the target beam serving the corresponding wave position of the terminal is determined; The first information includes: the time-domain position information of the next transmission time of the corresponding synchronization signal block SSB and the corresponding wavelet-level SSB period; Send the first information to the terminal.

2. The beam management method according to claim 1, characterized in that, The first information for determining the target beam serving the corresponding wavelength of the terminal based on the terminal's location information includes: The corresponding wave position of the terminal is determined based on the terminal's location information, the wave position center point location information, and the wave position radius; Based on the corresponding wavelength of the terminal, determine the first information of the target beam serving the corresponding wavelength of the terminal.

3. The beam management method according to claim 1, characterized in that, Sending the first information to the terminal includes: The Transmission Configuration Indication (TCI) status information is sent to the terminal via Radio Resource Control (RRC) signaling; the TCI status information includes the first information.

4. The beam management method according to claim 3, characterized in that, The TCI status information includes: an SSB location system frame number field and a wavelet-level SSB period field; the SSB location system frame number field is used to carry the time-domain location information of the next transmission time of the corresponding SSB, and the wavelet-level SSB period field is used to carry the corresponding wavelet-level SSB period.

5. A beam management method applied to a terminal, characterized in that, include: The device receives first information sent by the network device. The first information is related information of the target beam serving the corresponding wave position of the terminal. The first information includes: the time domain position information of the next transmission time of the corresponding SSB and the corresponding wave position-level SSB period. Based on the first information, the terminal is controlled to access the target beam; and SSB measurement is performed.

6. The beam management method according to claim 5, characterized in that, The step of controlling the beam accessed by the terminal to be the target beam according to the first information includes: If the beam currently accessed by the terminal does not match the first information, a beam switching operation is performed to access the target beam.

7. The beam management method according to claim 5, characterized in that, The first information sent by the receiving network device includes: The network device receives TCI status information sent via RRC signaling; the TCI status information includes the first information.

8. The beam management method according to claim 7, characterized in that, The TCI status information includes: an SSB location system frame number field and a wavelet-level SSB period field; the SSB location system frame number field is used to carry the time-domain location information of the next transmission time of the corresponding SSB, and the wavelet-level SSB period field is used to carry the corresponding wavelet-level SSB period.

9. A beam management device, applied to network equipment, characterized in that, include: The first determining module is used to determine the first information of the target beam serving the corresponding wave position of the terminal based on the location information of the terminal. The first information includes: the time-domain position information of the next transmission time of the corresponding synchronization signal block SSB and the corresponding wavelet-level SSB period; The first sending module is used to send the first information to the terminal.

10. The beam management device according to claim 9, characterized in that, The first information for determining the target beam serving the corresponding wavelength of the terminal based on the terminal's location information includes: The corresponding wave position of the terminal is determined based on the terminal's location information, the wave position center point location information, and the wave position radius; Based on the corresponding wavelength of the terminal, determine the first information of the target beam serving the corresponding wavelength of the terminal.

11. The beam management device according to claim 9, characterized in that, Sending the first information to the terminal includes: The Transmission Configuration Indication (TCI) status information is sent to the terminal via Radio Resource Control (RRC) signaling; the TCI status information includes the first information.

12. The beam management device according to claim 11, characterized in that, The TCI status information includes: an SSB location system frame number field and a wavelet-level SSB period field; the SSB location system frame number field is used to carry the time-domain location information of the next transmission time of the corresponding SSB, and the wavelet-level SSB period field is used to carry the corresponding wavelet-level SSB period.

13. A beam management device, applied to a terminal, characterized in that, include: The first receiving module is used to receive first information sent by the network device. The first information is related information of the target beam serving the corresponding wave position of the terminal. The first information includes: the time domain position information of the next transmission time of the corresponding SSB and the corresponding wave position-level SSB period. The first processing module is configured to control the beam accessed by the terminal to be the target beam based on the first information, and to perform SSB measurement.

14. The beam management device according to claim 13, characterized in that, The step of controlling the beam accessed by the terminal to be the target beam according to the first information includes: If the beam currently accessed by the terminal does not match the first information, a beam switching operation is performed to access the target beam.

15. The beam management device according to claim 13, characterized in that, The first information sent by the receiving network device includes: The network device receives TCI status information sent via RRC signaling; the TCI status information includes the first information.

16. The beam management device according to claim 15, characterized in that, The TCI status information includes: an SSB location system frame number field and a wavelet-level SSB period field; the SSB location system frame number field is used to carry the time-domain location information of the next transmission time of the corresponding SSB, and the wavelet-level SSB period field is used to carry the corresponding wavelet-level SSB period.

17. A beam management device, wherein the beam management device is a network device, characterized in that, include: Processor and transceiver; The processor is used to determine first information of the target beam serving the corresponding wave position of the terminal based on the location information of the terminal. The first information includes: the time-domain position information of the next transmission time of the corresponding synchronization signal block SSB and the corresponding wavelet-level SSB period; The transceiver sends the first information to the terminal.

18. A beam management device, wherein the beam management device is a terminal, characterized in that, include: Processor and transceiver; The processor is configured to receive first information sent by the network device through the transceiver. The first information is related information of the target beam serving the corresponding waveband of the terminal. The first information includes: the time domain position information of the next transmission time of the corresponding SSB and the corresponding waveband-level SSB period. Based on the first information, the terminal is controlled to access the target beam; and SSB measurement is performed.

19. A beam management device, comprising a memory, a processor, and a computer program stored in the memory and executable on the processor; characterized in that, When the processor executes the program, it implements the beam management method as described in any one of claims 1 to 8.

20. A readable storage medium having a program stored thereon, characterized in that, When the program is executed by the processor, it implements the steps in the beam management method as described in any one of claims 1 to 8.

21. A computer program product, characterized in that, It includes computer instructions that, when executed by a processor, implement the steps of the beam management method as described in any one of claims 1 to 8.

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