Beam transmission method and apparatus, base station, terminal, and storage medium

Abstract

The application discloses a beam sending method and device, a base station, a terminal and a storage medium. The method comprises the following steps: a base station sends a first part of SSB beams of a first cell or does not send SSB beams of the first cell; in the case of meeting a set condition or in the case of meeting set time information and / or frequency domain information, SSB beams of the first cell are activated and / or sent; the activated and / or sent SSB beams are part or all of the other SSB beams in the case of having sent SSB beams, or are all or part of the SSB beams of the first cell in the case of not sending SSB beams; wherein the SSB beams of the first cell are divided into at least two parts; and the set time information and / or frequency domain information is configured by a network in advance through signaling.

Description

Technical Field

[0001] This application relates to the field of wireless technology, and in particular to a beam transmission method, beam measurement method, apparatus, base station, terminal and storage medium. Background Technology

[0002] In related technologies, it is necessary to always maintain the basic overlap between the common beam coverage and the user beam coverage of the fifth-generation mobile communication technology (5G) cell, that is, to maintain the basic overlap between the Synchronization Signal Block (SSB) beam and the Channel-State Information Reference Signals (CSI-RS) beam. Otherwise, after the terminal drops a call, it will not be able to use the SSB to discover the cell, and it will be unable to initiate the reconstruction of Radio Resource Control (RRC) for the cell.

[0003] However, the aforementioned beam transmission mechanism leads to increased overhead for the terminal. Summary of the Invention

[0004] To address the related technical issues, embodiments of this application provide a beam transmission method, a beam measurement method, an apparatus, a base station, a terminal, and a storage medium.

[0005] The technical solution of this application embodiment is implemented as follows:

[0006] This application provides a beam transmission method applied to a base station, the method comprising:

[0007] Transmit the first part of the SSB beam of the first cell or do not transmit the SSB beam of the first cell;

[0008] Under certain predefined conditions, or under predefined time and / or frequency domain information, the SSB beam of the first cell is activated and / or transmitted; the activated and / or transmitted SSB beam is part or all of the other SSB beams in the case where the SSB beam has already been transmitted, or all or part of the SSB beams of the first cell in the case where the SSB beam has not been transmitted; wherein...

[0009] The SSB beam of the first cell is divided into at least two parts; the set time information and / or frequency domain information are configured in advance by the network through signaling.

[0010] In the above scheme, the first part of the SSB beam for transmitting the first cell includes:

[0011] Transmit m sets of SSB beams; among which,

[0012] The m sets of SSB beams cover a portion of the first cell; or, the m sets of SSB beams are m sets of SSB beams out of the n sets of SSB beams in the first cell; m is greater than or equal to 1, and m is less than n; n is greater than 1.

[0013] In the above scheme, after transmitting m sets of SSB beams, activating and / or transmitting the SSB beam of the first cell includes:

[0014] Activate and / or transmit all or part of the SSB beams in the n SSB beam sets, excluding the m SSB beam sets; or,

[0015] Stop transmitting the m sets of SSB beams, and activate and / or transmit all or part of the n sets of SSB beams except for the m sets of SSB beams.

[0016] In the above scheme, before transmitting the first portion of the SSB beam of the first cell or not transmitting the SSB beam of the first cell, the method further includes:

[0017] Configure the SSB beam of the first cell for the terminal through system messages or Radio Resource Control (RRC) signaling.

[0018] In the above scheme, configuring the SSB beam of the first cell for the terminal via system messages or RRC signaling includes:

[0019] The transmission status of the SSB beam in each of the at least two parts of the SSB beam is indicated by system messages or RRC signaling.

[0020] In the above scheme, activating and / or transmitting the SSB beam of the first cell when the set conditions are met includes:

[0021] Upon receiving a first measurement event reported by the terminal, the SSB beam of the first cell is activated and / or transmitted; wherein,

[0022] The first measurement event indicates that the terminal does not have a dedicated beam available.

[0023] In the above scheme, the first measurement event is reported when the following conditions are met:

[0024] The terminal's measurement result for any dedicated beam is below a first preset threshold; and / or,

[0025] The Block Error Rate (BLER) of the terminal during data transmission is higher than the second set threshold.

[0026] The method in the above scheme further includes:

[0027] The codebook, direction, and transmit power of the activated and / or transmitted SSB beam are determined based on the first information in the first measurement event.

[0028] The first information includes at least one of the following:

[0029] The terminal's measurement results for the dedicated beam;

[0030] Terminal height;

[0031] The distance between the terminal and the base station;

[0032] Terminal speed;

[0033] The first angle represents the angle between the line connecting the terminal and the base station and the horizon.

[0034] In the above scheme, when activating and / or transmitting the SSB beam of the first cell, the method further includes:

[0035] Send the second information to the terminal; wherein,

[0036] The second information represents the configuration information corresponding to the activated and / or transmitted SSB beam.

[0037] In the above scheme, the second information includes at least one of the following:

[0038] Index of SSB beams;

[0039] Information on the demodulation reference signal (DMRS) corresponding to the SSB beam;

[0040] The remaining minimum system information corresponding to the SSB beam.

[0041] In the above scheme, the second information is sent through the dynamic downlink control information (DCI) of the physical downlink control channel (PDCCH).

[0042] The method in the above scheme further includes:

[0043] Receive third information sent by the terminal; the third information is sent when the terminal measures an available dedicated beam;

[0044] Based on the third information, the transmission of all or part of the SSB beams of the first cell is stopped.

[0045] In the above scheme, the third information is sent via a Random Access Response (RAR) message.

[0046] The method in the above scheme further includes:

[0047] Whether the SSB beam of each of the at least two parts of the SSB beam is transmitted is determined based on one of the following:

[0048] The number of terminals with a height greater than the set height;

[0049] Terminal's Quality of Service (QoS) requirements.

[0050] The method in the above scheme further includes:

[0051] Based on the terminal's set route, determine whether the SSB beam of each of the at least two parts of the SSB beam is transmitted, and / or determine the activation time of the transmitted SSB beam.

[0052] This application also provides a beam measurement method applied to a terminal, the method comprising:

[0053] After accessing the first cell and entering the connected state, no SSB beam measurement is performed; only the dedicated beam is monitored and / or measured.

[0054] In the absence of a usable dedicated beam, the first measurement event is reported to the base station; wherein,

[0055] The first measurement event is used for base station activation and / or transmission of all or part of the SSB beams of the first cell.

[0056] In the above scheme, the first measurement event is reported when the following conditions are met:

[0057] The measurement result of the terminal for any dedicated beam is lower than a first preset threshold; and / or,

[0058] The BLER of the terminal for data transmission is higher than the second set threshold.

[0059] In the above scheme, the first measurement event includes first information; the first information includes at least one of the following:

[0060] The terminal's measurement results for the dedicated beam;

[0061] The height of the terminal;

[0062] The distance between the terminal and the base station;

[0063] The speed of the terminal;

[0064] The first angle represents the angle between the line connecting the terminal and the base station and the horizon.

[0065] The method in the above scheme further includes:

[0066] Receive the second information sent by the base station; wherein,

[0067] The second information represents the configuration information corresponding to the SSB beam activated and / or transmitted by the base station.

[0068] In the above scheme, the second information includes at least one of the following:

[0069] Index of SSB beams;

[0070] DMRS information corresponding to the SSB beam;

[0071] The remaining minimum system information corresponding to the SSB beam.

[0072] In the above scheme, the second information is sent via the DCI of the PDCCH.

[0073] The method in the above scheme further includes:

[0074] When the terminal detects an available dedicated beam, it sends third information to the base station; wherein,

[0075] The base station stops transmitting all or part of the SSB beams of the first cell based on the third information.

[0076] In the above scheme, the third information is sent via RAR message.

[0077] This application also provides a beam transmitting device, including:

[0078] The first transmitting unit is used to transmit a first part of the SSB beam of the first cell or not to transmit the SSB beam of the first cell.

[0079] The second transmitting unit is configured to activate and / or transmit the SSB beam of the first cell when preset conditions are met, or when preset time information and / or frequency domain information are met; the activated and / or transmitted SSB beam is part or all of the other SSB beams in the case where SSB beams have already been transmitted, or all or part of the SSB beams of the first cell in the case where SSB beams have not been transmitted; wherein...

[0080] The SSB beam of the first cell is divided into at least two parts; the set time information and / or frequency domain information are configured in advance by the network through signaling.

[0081] This application also provides a beam measurement device, including:

[0082] The first measurement unit is used to perform monitoring and / or measurement of the dedicated beam only after accessing the first cell and entering the connected state, without measuring the SSB beam.

[0083] The first reporting unit is used to report a first measurement event to the base station when no dedicated beam is available; wherein,

[0084] The first measurement event is used for base station activation and / or transmission of all or part of the SSB beams of the first cell.

[0085] This application embodiment also provides a base station, including: a first processor and a first communication interface; wherein,

[0086] The first communication interface is used to transmit a first portion of the SSB beam of the first cell or not transmit the SSB beam of the first cell; and to activate and / or transmit the SSB beam of the first cell when a set condition is met, or when set time information and / or frequency domain information is met; wherein the activated and / or transmitted SSB beam is part or all of the other SSB beams when the SSB beam has been transmitted, or all or part of the SSB beams of the first cell when the SSB beam has not been transmitted; wherein,

[0087] The SSB beam of the first cell is divided into at least two parts; the set time information and / or frequency domain information are configured in advance by the network through signaling.

[0088] This application embodiment also provides a terminal, including: a second processor and a second communication interface; wherein,

[0089] The second communication interface is used to, after accessing the first cell and entering the connected state, not to measure the SSB beam, but only to monitor and / or measure the dedicated beam; and to report a first measurement event to the base station when no dedicated beam is available; wherein,

[0090] The first measurement event is used for base station activation and / or transmission of all or part of the SSB beams of the first cell.

[0091] This application also provides a base station, including: a first processor and a first memory for storing a computer program capable of running on the processor.

[0092] Wherein, when the first processor is used to run the computer program, it executes the steps described in any of the above beam transmission methods.

[0093] This application also provides a terminal, characterized in that it includes: a second processor and a second memory for storing a computer program capable of running on the processor.

[0094] Wherein, when the second processor runs the computer program, it executes the steps of any of the above-described beam measurement methods.

[0095] This application embodiment also provides a storage medium storing a computer program thereon, characterized in that, when the computer program is executed by a processor, it implements the steps of any of the above-described beam transmission methods, or implements the steps of any of the above-described beam measurement methods.

[0096] This application provides a beam transmission method, beam measurement method, apparatus, base station, terminal, and storage medium. The SSB beam of a first cell is divided into at least two parts. The base station transmits a first part of the SSB beam of the first cell or does not transmit the SSB beam of the first cell. Under certain conditions, or under conditions that conform to time information and / or frequency domain information pre-configured by the network via signaling, the base station activates and / or transmits the SSB beam of the first cell. The activated and / or transmitted SSB beam is part or all of the SSB beams of other SSB beams in the case where the SSB beam has already been transmitted, or all or part of the SSB beams of the first cell in the case where the SSB beam has not been transmitted. In this scheme, the base station does not need to continuously transmit the entire SSB beam of the first cell, thus reducing the measurement overhead of the terminal on the SSB beam and correspondingly reducing the interference of the SSB beam sidelobes to the ground cell. Attached Figure Description

[0097] Figure 1 This is a schematic flowchart of a beam transmission method according to an embodiment of this application;

[0098] Figure 2 This is an example diagram of a beam transmission method according to an embodiment of this application;

[0099] Figure 3 This is an example diagram of another beam transmission method according to an embodiment of this application;

[0100] Figure 4 This is a schematic flowchart of a beam measurement method according to an embodiment of this application;

[0101] Figure 5 This is a schematic diagram of a beam transmitting device according to an embodiment of this application;

[0102] Figure 6This is a schematic diagram of a beam measurement device according to an embodiment of this application;

[0103] Figure 7 This is a schematic diagram of the base station structure according to an embodiment of this application;

[0104] Figure 8 This is a schematic diagram of the terminal structure according to an embodiment of this application. Detailed Implementation

[0105] The present application will now be described in further detail with reference to the accompanying drawings and embodiments.

[0106] In related technologies, after a terminal is powered on, it receives synchronization channel and system messages from radio access network nodes, including but not limited to New Radio (NR) base stations (gNB, gNodeB), Long Term Evolution (LTE) base stations, or 3rd-Generation (3G) base stations (such as Radio Network Controllers (RNCs) or NodeBs). The system messages carry parameters related to random access, including the cell's Physical Random Access Channel (PRACH) configuration index, logical root sequence initial values, cyclic shift index, and uplink / downlink configuration index. For a terminal to access the gNB network, it must perform a cell search to determine a serving cell, obtain the cell's system information, and initiate a random access procedure. This allows it to achieve frequency and symbol synchronization with the cell, obtain the start position of downlink frames, and determine the cell's Physical-layer Cell Identity (PCI). In practical applications, terminals not only need to perform cell search upon power-on, but also continuously search for neighboring cells after completing random access to support mobility, thus deciding whether to perform handover or cell re-selection. Therefore, it is necessary to ensure that the common beam coverage of 5G cells and user beam coverage are essentially overlapping, i.e., the SSB and CSI-RS are essentially overlapping. Otherwise, after a call drop, the terminal cannot use the SSB to discover cells and therefore cannot initiate RRC reconstruction for the cell. However, this beam transmission mechanism increases the terminal's overhead.

[0107] In some application scenarios, terminals typically remain connected after completing the random access process. For example, after takeoff, a drone usually only moves within a certain range, maintaining a connected state in the air to achieve flight control and status monitoring through continuous user plane transmission. Furthermore, after takeoff, the base station uses a dedicated beam to provide services to the drone. Given the above, the base station does not need to continuously transmit airborne SSB beams. Therefore, in this embodiment, the SSB beam of the first cell is divided into at least two parts. The base station transmits a first part of the SSB beam of the first cell or does not transmit the SSB beam of the first cell, and activates and / or transmits the SSB beam of the first cell under certain conditions; wherein the activated and / or transmitted SSB beam is part or all of the other SSB beams in the case where the SSB beam has already been transmitted, or all or part of the SSB beam of the first cell in the case where the SSB beam has not been transmitted. In the above scheme, the base station does not need to continuously transmit the entire SSB beam of the first cell, which correspondingly reduces the measurement overhead of the terminal on the SSB beam, and also reduces the interference of the SSB beam sidelobes to the ground cell.

[0108] The present application will now be described in further detail with reference to the accompanying drawings and embodiments.

[0109] This application provides a beam transmission method applied to a base station, such as... Figure 1 As shown, the method includes:

[0110] Step 101: Send the first part of the SSB beam of the first cell or do not send the SSB beam of the first cell.

[0111] The SSB beam of the first cell is divided into at least two parts.

[0112] Here, the base station divides the SSB beam of the first cell into at least two parts. Each part may include only one SSB beam or multiple SSB beams. For example, in practical applications, for terminals such as drones, the base station first transmits m sets of SSB beams of the first cell. These m sets of SSB beams are used for ground coverage of the cell, so that the terminal can access the first cell through a random access procedure when on the ground. Afterwards, for example, after the drone terminal takes off and enters a certain altitude, the base station provides services to the terminal through dedicated beams. The base station does not transmit the common beams of the n sets of SSB beams used for spatial coverage other than the m sets of SSB beams, or only transmits the common beams of the n sets of SSB beams used for spatial coverage other than the m sets of SSB beams. That is, the base station only transmits the first part of the SSB beams of the first cell, or does not transmit the SSB beams of the first cell.

[0113] It should be noted that all SSB beams of the first cell are divided into at least two parts. The first part of the SSB beams of the first cell refers to one of the SSB beams in the at least two parts. The "first" in "first part" is not used to describe a specific order or sequence of the SSB beams.

[0114] In the embodiments of this application, the terminal can perform cell search, cell discovery, cell selection and / or cell reselection based on the SSB beam.

[0115] Step 102: Under the condition of meeting the set conditions, or under the condition of meeting the set time information and / or frequency domain information, activate and / or transmit the SSB beam of the first cell; the activated and / or transmitted SSB beam is part or all of the other SSB beams when the SSB beam has been transmitted, or all or part of the SSB beams of the first cell when the SSB beam has not been transmitted.

[0116] The SSB beam of the first cell is divided into at least two parts; the set time information and / or frequency domain information are configured in advance by the network through signaling.

[0117] When the base station transmits a portion of the SSB beams of the first cell or does not transmit the SSB beams of the first cell, when a set condition is met, or when the time information and / or frequency domain information configured in advance by the network via signaling is met, the base station activates and / or transmits all the SSB beams of the first cell, or the base station activates and / or transmits a portion of the SSB beams of the first cell. Here, the portion of the SSB beams of the first cell activated and / or transmitted by the base station may include the aforementioned first portion of the SSB beams, or may not include the aforementioned first portion of the SSB beams, or may include a portion of the SSB beams in the aforementioned first portion of the SSB beams.

[0118] The set time information includes the period of partial SSB activation / or transmission, the duration of each period, and the specific time slot and / or time symbol occupied by SSB beam transmission; and / or, the set time information includes the period of all SSB beam activation / or transmission, the duration of each period, and the specific time slot and / or time symbol occupied by SSB beam transmission; the set frequency domain information includes the PRB position occupied by partial SSB beam activation / or transmission, the number of PRBs, and / or subcarrier spacing.

[0119] The set conditions indicate a need to transmit other SSB beams of the first cell besides the first part of the SSB beams. Specific conditions for meeting these conditions will be described in detail in the following embodiments. Based on the above scheme, during the base station's beam transmission process, it is not necessary to maintain the transmission of all SSB beams at all times. For the terminal, this reduces measurement overhead, and it also reduces the interference of SSB beam sidelobes to the ground cell.

[0120] For example, in practical applications, for terminals such as drones, under certain conditions, the SSB beam of the first cell is activated and / or transmitted. That is, under certain conditions, the base station activates and / or transmits the common beam among the n sets of SSB beams used for spatial coverage, excluding the m sets of SSB beams.

[0121] In one embodiment, the transmission of the first portion of the SSB beam of the first cell includes:

[0122] Send m sets of SSB beams.

[0123] Wherein, the m sets of SSB beams cover a portion of the first cell; or, the m sets of SSB beams are m sets of SSB beams out of the n sets of SSB beams in the first cell; m is greater than or equal to 1, and m is less than n; n is greater than 1.

[0124] Among these, the SSB beams other than the m SSB beams mentioned above and the n SSB beams mentioned above have the same or different synchronization channel information.

[0125] As one implementation method, refer to Figure 2 The first cell corresponds to eight SSB beams, SSB 1 through SSB 8. Each SSB beam can be understood as a set of SSB beams. Figure 2 In the example, SSB 5 through SSB 7 are considered the normal SSB beams, meaning they are regarded as the first part of the SSB beams, and transmission of SSB 5 through SSB 7 is maintained at all times. As the normal SSB beams, the configuration information corresponding to SSB 5 through SSB 7 is periodically transmitted through the ssb-PositionsInBurst information broadcast in system messages. Terminals can access the first cell through SSB 5 through SSB 7. Among the eight SSB beams corresponding to the first cell, SSB 1 through SSB 4 are considered air-to-ground SSB beams and do not need to be continuously transmitted. Under certain conditions, the base station activates and / or transmits all or part of the SSB beams from SSB 1 to SSB 4.

[0126] As another implementation method, refer to Figure 3 The first cell corresponds to the eight SSB beams, SSB 1 through SSB 8. Figure 3 In the example, the eight SSB beams are divided into two parts. When the transmitter 31 is in position 1 (facing downwards), the base station transmits SSBs 5 through 8. When the transmitter 31 is in position 2 (facing upwards), the base station transmits SSBs 1 through 4. In this way, the base station adjusts the angle between the transmitter 31 and the horizon to transmit different parts of the SSB beams. In practical applications, if the base station has multiple transmitters, it can transmit SSBs 1 through 8 simultaneously. If the base station has only one transmitter, it can only transmit either SSBs 1 through 4 or SSBs 5 through 8 simultaneously at any given time. The base station can broadcast two sets of ssb-PositionsInBurst information via system messages: ssb-PositionsInBurst 1 corresponds to the configuration information for SSBs 1 through 4, and ssb-PositionsInBurst 2 corresponds to the configuration information for SSBs 5 through 8.

[0127] In one embodiment, after transmitting m sets of SSB beams, activating and / or transmitting the SSB beam of the first cell includes:

[0128] Activate and / or transmit all or part of the SSB beams in the n SSB beam sets, excluding the m SSB beam sets; or,

[0129] Stop transmitting the m sets of SSB beams, and activate and / or transmit some or all of the n sets of SSB beams except for the m sets of SSB beams.

[0130] Here, the base station first transmits the first portion of m sets of SSB beams, and then, under certain conditions, activates and / or transmits the remaining portion of nm sets of SSB beams. Furthermore, when activating and / or transmitting the remaining portion of nm sets of SSB beams, the base station can choose to continue transmitting the first portion of m sets of SSB beams, or choose to stop transmitting the first portion of m sets of SSB beams, or choose to continue transmitting a portion of the first portion of m sets of SSB beams.

[0131] In one embodiment, before transmitting a first portion of the SSB beam of the first cell or not transmitting the SSB beam of the first cell, the method further includes:

[0132] Configure the SSB beam of the first cell for the terminal via system messages or RRC signaling.

[0133] In practical applications, the base station can inform the terminal of the transmission status of only the currently transmitted SSB beam, or it can inform the terminal of the transmission status of all SSB beams. For the latter implementation, in one embodiment, configuring the SSB beams of the first cell for the terminal via system messages or RRC signaling includes:

[0134] The transmission status of the SSB beam in each of the at least two parts of the SSB beam is indicated by system messages or RRC signaling.

[0135] Here, the base station can inform the terminal of the transmission status of the SSB beams in each part of the first cell. Based on system messages or RRC signaling sent by the base station, the terminal can determine which SSB beams are active and in transmission mode, and complete SSB beam measurement according to the configuration information of the SSB beams in transmission mode. Combined with... Figure 3 For example, after a terminal accesses the first cell, the base station informs the terminal that SSB 1 to SSB 4 are inactive, and SSB 5 to SSB 8 are active, by sending system messages or RRC signaling.

[0136] The following explains the conditions under which the settings are met:

[0137] In one embodiment, activating and / or transmitting the SSB beam of the first cell when the set conditions are met includes:

[0138] Upon receiving a first measurement event reported by the terminal, activate and / or transmit the SSB beam of the first cell.

[0139] The first measurement event indicates that the terminal does not have a dedicated beam available.

[0140] Here, the first measurement event received by the base station from the terminal is considered to meet the set conditions. Here, the first measurement event is reported when the terminal detects that no dedicated beam is available.

[0141] Specifically, the first measurement event is reported when the following conditions are met:

[0142] The terminal's measurement result for any dedicated beam is below a first preset threshold; and / or,

[0143] The BLER of the terminal for data transmission is higher than the second set threshold.

[0144] When the BLER of the terminal transmitting data is higher than the second set threshold, it can be understood that the terminal's communication status is close to the triggering condition of Radio Link Failure (RLF).

[0145] In one embodiment, activating and / or transmitting the SSB beam of the first cell when certain conditions are met may further include:

[0146] The base station measures the uplink signal of the terminal or detects the rate or flow of data packets sent by the terminal in the uplink. When the second measurement event is met, the base station activates and / or transmits the SSB beam of the first cell.

[0147] The second measurement event indicates that the terminal does not have a dedicated beam available.

[0148] Here, the second measurement event is considered to meet the set conditions when the base station measures the uplink signal of the terminal or detects the rate or flow of data packets sent by the terminal in the uplink. Here, the second measurement event is reported when the terminal detects that there is no available dedicated beam.

[0149] In practical applications, the base station configures the trigger conditions for the terminal to report the first measurement event. These conditions include the terminal's measurement results for both the currently used and other available dedicated beams being below a first preset threshold, and / or the BLER of the terminal's data transmission being above a second preset threshold. All of these trigger conditions indicate that the terminal has no available dedicated beams, or that the dedicated beams cannot guarantee the terminal's minimum communication requirements. Therefore, when the terminal detects that the trigger conditions for reporting the first measurement event are met, it reports the first measurement event to the base station, thereby triggering the base station to activate and / or transmit the SSB beam of the first cell.

[0150] In practical applications, the base station configures the terminal with triggering conditions for detecting the second measurement event, including configuring the terminal with uplink signal information to facilitate the base station's detection of the second measurement event, including transmitted code information and / or transmitted resource information.

[0151] In one embodiment, activating and / or transmitting the SSB beam of the first cell includes:

[0152] The codebook, direction, and transmit power of the activated and / or transmitted SSB beam are determined based on the first information in the first measurement event.

[0153] The first information includes at least one of the following:

[0154] The terminal's measurement results for the dedicated beam;

[0155] Terminal height;

[0156] The distance between the terminal and the base station;

[0157] Terminal speed;

[0158] The first angle represents the angle between the line connecting the terminal and the base station and the horizon.

[0159] In practical applications, the first measurement event reported by the terminal includes an event identifier characterizing the first measurement event, and at least one of the aforementioned first information items. Based on the content reported by the terminal, the base station determines the codebook, direction, and transmit power of the SSB beam matching the aforementioned first information, thereby determining the SSB beam that needs to be activated and / or transmitted. The direction of the SSB beam transmitted by the base station can be adjusted based on information such as the terminal's height, the distance between the terminal and the base station, the terminal's speed, and the first angle, as represented in the first information. The transmit power of the SSB beam transmitted by the base station can be adjusted based on the terminal's height, as represented in the first information. For example, when the terminal is a drone, in... Figure 2 In the example, the base station activates SSB 1 to SSB 4 of the first cell to transmit the air-to-air SSB beam, sending the SSB beam in the direction of the UAV's location, thereby providing communication support for the UAV's flight.

[0160] In one embodiment, when activating and / or transmitting the SSB beam of the first cell, the method further includes:

[0161] Send the second information to the terminal.

[0162] The second information represents the configuration information corresponding to the activated and / or transmitted SSB beam.

[0163] In one embodiment, the second information includes at least one of the following:

[0164] Index of SSB beams;

[0165] DMRS information corresponding to the SSB beam;

[0166] The remaining minimum system information corresponding to the SSB beam.

[0167] In one embodiment, the second information is sent via dynamic DCI of the PDCCH.

[0168] Here, the base station uses the dynamic DCI debugging information of the PDCCH to indicate to the terminal the relevant configuration of the SSB beam activated and / or sent by the base station, so that the terminal can start measurement for the corresponding SSB beam according to the configuration sent by the base station.

[0169] In practical applications, after the base station activates and / or transmits a new SSB beam, if the terminal discovers an available dedicated beam, the terminal can notify the base station to stop transmitting all or part of the corresponding SSB beams. This reduces the terminal's measurement overhead in a timely manner while ensuring terminal communication. Based on this, in one embodiment, the method further includes:

[0170] Receive third information sent by the terminal; the third information is sent when the terminal measures an available dedicated beam;

[0171] Based on the third information, the transmission of all or part of the SSB beams of the first cell is stopped.

[0172] Here, the base station stops transmitting all or part of the SSB beams of the first cell based on the third information. This can be understood as the base station only continuing to transmit the first part of the SSB beams of the first cell or not transmitting the SSB beams of the first cell, or the base station transmitting the other parts of the SSB beams of the first cell.

[0173] In one embodiment, the terminal can send the aforementioned third information via a RAR message.

[0174] In one embodiment, the method further includes:

[0175] Whether the SSB beam of each of the at least two parts of the SSB beam is transmitted is determined based on one of the following:

[0176] The number of terminals with a height greater than the set height;

[0177] QoS requirements of the terminal.

[0178] Here, the base station pre-selects the active SSB beam based on the above information. For example, when there are many drones with altitudes higher than a set altitude among those accessing the first cell, the active SSB beam can be activated. Figure 3 In the example, SSB 1 to SSB 4 provide communication support for these drones in the air. For instance, for drones with high QoS requirements, when a drone connects to the first cell and is in flight, in addition to providing a dedicated beam, it can also activate... Figure 3 SSB 1 to SSB 4 in the example are used to further ensure the QoS requirements of drones in the air.

[0179] In one embodiment, the method further includes:

[0180] Based on the terminal's set route, determine whether the SSB beam of each of the at least two parts of the SSB beam is transmitted, and / or determine the activation time of the transmitted SSB beam.

[0181] In practical applications, base stations can determine the SSB beams to be activated and / or transmitted based on the first information in the first measurement event reported by the terminal, the number of terminals at altitudes greater than a set altitude, and / or the QoS requirements of the terminals. They can also determine the SSB beams to be activated and / or transmitted based on the terminal's set route. For example, for drones, there are application scenarios with pre-defined flight routes. Based on information such as location and altitude involved in the set route, the base station can determine which part of the SSB beams in the first cell to activate and / or transmit. Furthermore, based on the drone's flight route plan, the base station can also determine the activation time point of the corresponding SSB beam. Thus, when the activation time point arrives, the drone is about to fly into or into a certain area on the flight route. At this time, the base station activates the corresponding SSB beam, thereby avoiding cell interference caused by premature activation of the SSB beam.

[0182] Accordingly, embodiments of this application also provide a beam measurement method, applied to a terminal, such as... Figure 4 As shown, the method includes:

[0183] Step 401: After accessing the first cell and entering the connected state, SSB beam measurement is not performed; only dedicated beam monitoring and / or measurement is performed.

[0184] In practical applications, for terminals such as drones, the base station first transmits all SSB beams of the first cell. The terminal accesses the first cell through a random access procedure. After that, the base station provides services to the terminal through a dedicated beam. The base station no longer transmits the common beam or only transmits a portion of the common beam. That is, the base station only transmits the first part of the SSB beams of the first cell, or does not transmit the SSB beams of the first cell. Correspondingly, after the terminal accesses the first cell and is in the connected state, it does not perform SSB beam measurement, but only performs dedicated beam monitoring and / or measurement.

[0185] Step 402: In the absence of a dedicated beam available, report the first measurement event to the base station.

[0186] The first measurement event is used for base station activation and / or transmission of all or part of the SSB beams of the first cell.

[0187] In one embodiment, the first measurement event is reported when the following conditions are met:

[0188] The measurement result of the terminal for any dedicated beam is lower than a first preset threshold; and / or,

[0189] The BLER of the terminal for data transmission is higher than the second set threshold.

[0190] In practical applications, the base station event triggers the terminal to report the first measurement event. This includes conditions such as the terminal's measurement results for both the currently used and other available dedicated beams being below a first preset threshold, and / or the BLER (Blue Line Efficiency) of the terminal's data transmission being above a second preset threshold. These trigger conditions for reporting the first measurement event indicate that the terminal has no available dedicated beams, or that the dedicated beams cannot guarantee the terminal's minimum communication requirements. Therefore, when the terminal detects that the trigger conditions for reporting the first measurement event are met, it reports the first measurement event to the base station, thereby triggering the base station to activate and / or transmit all or part of the SSB (Special Support Bus) beams.

[0191] In one embodiment, the first measurement event includes first information; the first information includes at least one of the following:

[0192] The terminal's measurement results for the dedicated beam;

[0193] The height of the terminal;

[0194] The distance between the terminal and the base station;

[0195] The speed of the terminal;

[0196] The first angle represents the angle between the line connecting the terminal and the base station and the horizon.

[0197] In practical applications, the first measurement event reported by the terminal includes an event identifier characterizing the first measurement event, and at least one of the aforementioned first information items. Based on the content reported by the terminal, the base station determines the codebook, direction, and transmit power of the SSB beam matching the aforementioned first information, thereby determining the SSB beam that needs to be activated and / or transmitted. The direction of the SSB beam transmitted by the base station can be adjusted based on information such as the terminal's height, the distance between the terminal and the base station, the terminal's speed, and the first angle, as represented in the first information. The transmit power of the SSB beam transmitted by the base station can be adjusted based on the terminal's height, as represented in the first information. For example, when the terminal is a drone, in... Figure 2 In the example, the base station activates SSB 1 to SSB 4 of the first cell to transmit the air-to-air SSB beam, sending the SSB beam in the direction of the UAV's location, thereby providing communication support for the UAV's flight.

[0198] In one embodiment, the method further includes:

[0199] Receive the second information sent by the base station.

[0200] The second information represents the configuration information corresponding to the SSB beam activated and / or transmitted by the base station.

[0201] In one embodiment, the second information includes at least one of the following:

[0202] Index of SSB beams;

[0203] DMRS information corresponding to the SSB beam;

[0204] The remaining minimum system information corresponding to the SSB beam.

[0205] In one embodiment, the second information is sent via the DCI of the PDCCH.

[0206] Here, the base station uses the dynamic DCI debugging information of the PDCCH to indicate to the terminal the relevant configuration of the SSB beam activated and / or sent by the base station, so that the terminal can start measurement for the corresponding SSB beam according to the configuration sent by the base station.

[0207] In practical applications, after the base station activates and / or transmits a new SSB beam, if the terminal discovers an available dedicated beam, the terminal can notify the base station to stop transmitting all or part of the corresponding SSB beams. This reduces the terminal's measurement overhead in a timely manner while ensuring terminal communication. Based on this, in one embodiment, the method further includes:

[0208] When the terminal detects an available dedicated beam, it sends third information to the base station.

[0209] The base station stops transmitting all or part of the SSB beams of the first cell based on the third information.

[0210] In one embodiment, the third information is sent via a RAR message.

[0211] In the terminal-side embodiment described above, the base station activates and / or transmits all or part of the SSB beams of the first cell based on the first measurement event actively reported by the terminal. Furthermore, as can be seen from the base station-side embodiment described above, the base station may not activate and / or transmit all or part of the SSB beams of the first cell based on the first measurement event, but rather determine the SSB beams to be activated and / or transmitted based on the number of terminals with altitudes greater than a set altitude and / or the QoS requirements of the terminals. Alternatively, the base station may determine the SSB beams to be activated and / or transmitted based on the terminal's set route, and further, may determine the activation time of the SSB beams based on the terminal's set route. Moreover, the base station will indicate the transmission status of the SSB beams of each part of the first cell to the terminal via system messages or RRC signaling. Based on the system messages or RRC signaling sent by the base station, the terminal can determine which SSB beams are activated and in the transmission state, and complete the SSB beam measurement based on the configuration information of the SSB beams in the transmission state.

[0212] Specifically, after determining which SSB beams are in the transmission state, the terminal can determine the format of the corresponding GAP, the selection set of PRACH and preamble, and / or switch to the resource block of the BWP corresponding to the SSB beam that is transmitting, based on the configuration information of these SSB beams.

[0213] In this implementation, the SSB beam of the first cell is divided into at least two parts. The base station transmits a first part of the SSB beam of the first cell or does not transmit the SSB beam of the first cell, and activates and / or transmits the SSB beam of the first cell under certain conditions. The activated and / or transmitted SSB beam is part or all of the other SSB beams in the case where the SSB beam has already been transmitted, or all or part of the SSB beam of the first cell in the case where the SSB beam has not been transmitted. In the above scheme, the base station does not need to continuously transmit the entire SSB beam of the first cell, thus correspondingly reducing the measurement overhead of the terminal for the SSB beam, and also correspondingly reducing the interference of the SSB beam sidelobes to the ground cell.

[0214] To implement the method of the embodiments of this application, the embodiments of this application also provide a beam transmitting device, which is installed on a base station, such as... Figure 5 As shown, the device includes:

[0215] The first transmitting unit 501 is used to transmit a first part of the SSB beam of the first cell or not transmit the SSB beam of the first cell.

[0216] The second transmitting unit 502 is used to activate and / or transmit the SSB beam of the first cell when a set condition is met, or when set time information and / or frequency domain information is met; the activated and / or transmitted SSB beam is part or all of the other SSB beams when the SSB beam has been transmitted, or all or part of the SSB beams of the first cell when the SSB beam has not been transmitted.

[0217] The SSB beam of the first cell is divided into at least two parts; the set time information and / or frequency domain information are configured in advance by the network through signaling.

[0218] In one embodiment, the first transmitting unit 501 is used for:

[0219] Send m sets of SSB beams.

[0220] Wherein, the m sets of SSB beams cover a portion of the first cell; or, the m sets of SSB beams are m sets of SSB beams out of the n sets of SSB beams in the first cell; m is greater than or equal to 1, and m is less than n; n is greater than 1.

[0221] In one embodiment, the second transmitting unit 502 is used to:

[0222] Activate and / or transmit all or part of the SSB beams in the n SSB beam sets, excluding the m SSB beam sets; or,

[0223] Stop transmitting the m sets of SSB beams, and activate or transmit some or all of the n sets of SSB beams except for the m sets of SSB beams.

[0224] In one embodiment, the device further includes:

[0225] The first configuration unit is used to configure the SSB beam of the first cell for the terminal via system messages or RRC signaling.

[0226] In one embodiment, the first configuration unit is specifically used for:

[0227] The transmission status of the SSB beam in each of the at least two parts of the SSB beam is indicated by system messages or RRC signaling.

[0228] In one embodiment, the second sending unit 502 is specifically used for:

[0229] Upon receiving the first measurement event reported by the terminal, activate or transmit the SSB beam of the first cell.

[0230] The first measurement event indicates that the terminal does not have a dedicated beam available.

[0231] In one embodiment, the first measurement event is reported when the following conditions are met:

[0232] The terminal's measurement result for any dedicated beam is below a first preset threshold; and / or,

[0233] The BLER of the terminal for data transmission is higher than the second set threshold.

[0234] In one embodiment, the device further includes:

[0235] The first determining unit is configured to determine the codebook, direction, and transmit power of the activated and / or transmitted SSB beam based on the first information in the first measurement event.

[0236] The first information includes at least one of the following:

[0237] The terminal's measurement results for the dedicated beam;

[0238] Terminal height;

[0239] The distance between the terminal and the base station;

[0240] Terminal speed;

[0241] The first angle represents the angle between the line connecting the terminal and the base station and the horizon.

[0242] In one embodiment, the device further includes:

[0243] The third sending unit is used to send the second information to the terminal.

[0244] The second information represents the configuration information corresponding to the activated and / or transmitted SSB beam.

[0245] In one embodiment, the second information includes at least one of the following:

[0246] Index of SSB beams;

[0247] DMRS information corresponding to the SSB beam;

[0248] The remaining minimum system information corresponding to the SSB beam.

[0249] In one embodiment, the second information is sent via dynamic DCI of the PDCCH.

[0250] In one embodiment, the device further includes:

[0251] The second receiving unit is used to receive third information sent by the terminal; the third information is sent when the terminal measures an available dedicated beam.

[0252] The fourth transmitting unit is used to stop transmitting all or part of the SSB beams of the first cell based on the third information.

[0253] In one embodiment, the third information is sent via a RAR message.

[0254] In one embodiment, the device further includes:

[0255] The second determining unit is configured to determine whether the SSB beam of each of the at least two parts of the SSB beam has been transmitted based on one of the following:

[0256] The number of terminals with a height greater than the set height;

[0257] QoS requirements of the terminal.

[0258] In one embodiment, the device further includes:

[0259] The third determining unit is used to determine whether the SSB beam of each part of the at least two parts of the SSB beam is transmitted according to the set route of the terminal, and / or to determine the activation time point of the transmitted SSB beam.

[0260] In practical applications, the first transmitting unit 501, the second transmitting unit 502, the third transmitting unit, the first receiving unit, and the fourth transmitting unit can be implemented by the communication interface in the beam transmitting device; the first configuration unit, the first determining unit, the second determining unit, and the third determining unit can be implemented by the processor in the beam transmitting device.

[0261] It should be noted that the beam transmitting device provided in the above embodiments is only illustrated by the division of the above-described program modules. In practical applications, the above processing can be assigned to different program modules as needed, that is, the internal structure of the device can be divided into different program modules to complete all or part of the processing described above. In addition, the beam transmitting device and the beam transmitting method embodiments provided in the above embodiments belong to the same concept, and their specific implementation process can be found in the method embodiments, which will not be repeated here.

[0262] To implement the terminal-side method of this application embodiment, this application embodiment also provides a beam measurement device, which is installed on the terminal, such as... Figure 6 As shown, the device includes:

[0263] The first measurement unit 601 is used to perform monitoring and / or measurement of the dedicated beam only after accessing the first cell and entering the connected state, without measuring the SSB beam.

[0264] The first reporting unit 602 is used to report a first measurement event to the base station when no dedicated beam is available.

[0265] The first measurement event is used for base station activation and / or transmission of all or part of the SSB beams of the first cell.

[0266] In one embodiment, the first measurement event is reported when the following conditions are met:

[0267] The measurement result of the terminal for any dedicated beam is lower than a first preset threshold; and / or,

[0268] The BLER of the terminal for data transmission is higher than the second set threshold.

[0269] In one embodiment, the first measurement event includes first information; the first information includes at least one of the following:

[0270] The terminal's measurement results for the dedicated beam;

[0271] The height of the terminal;

[0272] The distance between the terminal and the base station;

[0273] The speed of the terminal;

[0274] The first angle represents the angle between the line connecting the terminal and the base station and the horizon.

[0275] In one embodiment, the device further includes:

[0276] The second receiving unit is used to receive the second information sent by the base station.

[0277] The second information represents the configuration information corresponding to the SSB beam activated and / or transmitted by the base station.

[0278] In one embodiment, the second information includes at least one of the following:

[0279] Index of SSB beams;

[0280] DMRS information corresponding to the SSB beam;

[0281] The remaining minimum system information corresponding to the SSB beam.

[0282] In one embodiment, the second information is sent via the DCI of the PDCCH.

[0283] In one embodiment, the device further includes:

[0284] The fifth transmitting unit is used to transmit third information to the base station when the terminal measures an available dedicated beam.

[0285] The base station stops transmitting all or part of the SSB beams of the first cell based on the third information.

[0286] In one embodiment, the third information is sent via a RAR message.

[0287] In practical applications, the first measurement unit 601, the first reporting unit 602, the second receiving unit, and the fifth transmitting unit can be implemented by the communication interface in the beam measurement device.

[0288] It should be noted that the beam measurement device provided in the above embodiments is only illustrated by the division of the above-described program modules. In practical applications, the above processing can be assigned to different program modules as needed, that is, the internal structure of the device can be divided into different program modules to complete all or part of the processing described above. In addition, the beam measurement device and the beam measurement method embodiments provided in the above embodiments belong to the same concept, and their specific implementation process can be found in the method embodiments, which will not be repeated here.

[0289] Based on the hardware implementation of the above program modules, and in order to implement the base station-side method of the embodiments of this application, the embodiments of this application also provide a base station, such as... Figure 7 As shown, base station 700 includes:

[0290] The first communication interface 701 is capable of exchanging information with other network nodes;

[0291] The first processor 702 is connected to the first communication interface 701 to enable information interaction with other network nodes. When running a computer program, it executes the methods provided by one or more technical solutions on the base station side. The computer program is stored in the first memory 703.

[0292] Specifically, the first communication interface 701 is used to transmit a first portion of the SSB beam of the first cell or not transmit the SSB beam of the first cell; and to activate and / or transmit the SSB beam of the first cell when a set condition is met, or when a set time information and / or frequency domain information is met; the activated and / or transmitted SSB beam is part or all of the other SSB beams when the SSB beam has been transmitted, or all or part of the SSB beam of the first cell when the SSB beam has not been transmitted.

[0293] The SSB beam of the first cell is divided into at least two parts; the set time information and / or frequency domain information are configured in advance by the network through signaling.

[0294] In one embodiment, the first portion of the SSB beam for transmitting the first cell includes:

[0295] Send m sets of SSB beams.

[0296] Wherein, the m sets of SSB beams cover a portion of the first cell; or, the m sets of SSB beams are m sets of SSB beams out of the n sets of SSB beams in the first cell; m is greater than or equal to 1, and m is less than n; n is greater than 1.

[0297] In one embodiment, the first communication interface 701 is used for:

[0298] Activate and / or transmit all or part of the SSB beams in the n SSB beam sets, excluding the m SSB beam sets; or,

[0299] Stop transmitting the m sets of SSB beams, and activate and / or transmit all or part of the n sets of SSB beams except for the m sets of SSB beams.

[0300] In one embodiment, the first processor 702 is configured to:

[0301] Before transmitting the first part of the SSB beam of the first cell or not transmitting the SSB beam of the first cell, the SSB beam of the first cell is configured for the terminal via system message or RRC signaling.

[0302] In one embodiment, the first processor 702 is configured to:

[0303] The transmission status of the SSB beam in each of the at least two parts of the SSB beam is indicated by system messages or RRC signaling.

[0304] In one embodiment, the first communication interface 701 is used for:

[0305] Upon receiving a first measurement event reported by the terminal, activate and / or transmit the SSB beam of the first cell.

[0306] The first measurement event indicates that the terminal does not have a dedicated beam available.

[0307] In one embodiment, the first measurement event is reported when the following conditions are met:

[0308] The terminal's measurement result for any dedicated beam is below a first preset threshold; and / or,

[0309] The BLER of the terminal for data transmission is higher than the second set threshold.

[0310] In one embodiment, the first processor 702 is configured to:

[0311] The codebook, direction, and transmit power of the activated and / or transmitted SSB beam are determined based on the first information in the first measurement event.

[0312] The first information includes at least one of the following:

[0313] The terminal's measurement results for the dedicated beam;

[0314] Terminal height;

[0315] The distance between the terminal and the base station;

[0316] Terminal speed;

[0317] The first angle represents the angle between the line connecting the terminal and the base station and the horizon.

[0318] In one embodiment, the first communication interface 701 is used for:

[0319] When activating and / or transmitting the SSB beam of the first cell, the second information is sent to the terminal.

[0320] The second information represents the configuration information corresponding to the activated and / or transmitted SSB beam.

[0321] In one embodiment, the second information includes at least one of the following:

[0322] Index of SSB beams;

[0323] DMRS information corresponding to the SSB beam;

[0324] The remaining minimum system information corresponding to the SSB beam.

[0325] In one embodiment, the second information is sent via dynamic DCI of the PDCCH.

[0326] In one embodiment, the first communication interface 701 is further configured to:

[0327] Receive third information sent by the terminal; the third information is sent when the terminal measures an available dedicated beam;

[0328] Based on the third information, the transmission of all or part of the SSB beams of the first cell is stopped.

[0329] In one embodiment, the third information is sent via a RAR message.

[0330] In one embodiment, the first processor 702 is further configured to:

[0331] Whether the SSB beam of each of the at least two parts of the SSB beam is transmitted is determined based on one of the following:

[0332] The number of terminals with a height greater than the set height;

[0333] QoS requirements of the terminal.

[0334] In one embodiment, the first processor 702 is further configured to:

[0335] Based on the terminal's set route, determine whether the SSB beam of each of the at least two parts of the SSB beam is transmitted, and / or determine the activation time of the transmitted SSB beam.

[0336] It should be noted that the specific processing procedures of the first processor 702 and the first communication interface 701 can be understood by referring to the above method.

[0337] Of course, in practical applications, the various components in base station 700 are coupled together through bus system 704. It can be understood that bus system 704 is used to realize the connection and communication between these components. In addition to the data bus, bus system 704 also includes a power bus, a control bus, and a status signal bus. However, for the sake of clarity, in... Figure 7 The general designated all buses as Bus System 704.

[0338] The first memory 703 in this embodiment is used to store various types of data to support the operation of the base station 700. Examples of such data include any computer program used to operate on the base station 700.

[0339] The methods disclosed in the embodiments of this application can be applied to the first processor 702, or implemented by the first processor 72. The first processor 702 may be an integrated circuit chip with signal processing capabilities. In the implementation process, each step of the above method can be completed by the integrated logic circuit of the hardware or by instructions in the form of software in the first processor 702. The first processor 702 may be a general-purpose processor, a digital signal processor (DSP), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. The first processor 702 can implement or execute the methods, steps, and logic block diagrams disclosed in the embodiments of this application. The general-purpose processor may be a microprocessor or any conventional processor, etc. The steps of the methods disclosed in the embodiments of this application can be directly reflected as being executed by a hardware decoding processor, or being executed by a combination of hardware and software modules in the decoding processor. The software modules may be located in a storage medium, which is located in the first memory 703. The first processor 702 reads the information in the first memory 703 and completes the steps of the aforementioned method in combination with its hardware.

[0340] In an exemplary embodiment, the base station 700 may be implemented by one or more application-specific integrated circuits (ASICs), DSPs, programmable logic devices (PLDs), complex programmable logic devices (CPLDs), field-programmable gate arrays (FPGAs), general-purpose processors, controllers, microcontrollers (MCUs), microprocessors, or other electronic components to perform the aforementioned method.

[0341] Based on the hardware implementation of the above program modules, and in order to implement the terminal-side method of the embodiments of this application, the embodiments of this application also provide a terminal, such as... Figure 8 As shown, the terminal 800 includes:

[0342] The second communication interface 801 is capable of exchanging information with other network nodes;

[0343] The second processor 802 is connected to the second communication interface 801 to enable information interaction with other network nodes and to execute the methods provided by one or more of the aforementioned terminal-side technical solutions when running a computer program. The computer program is stored in the second memory 803.

[0344] Specifically, the second communication interface 801 is used for:

[0345] After accessing the first cell and entering the connected state, no SSB beam measurement is performed; only the dedicated beam is monitored and / or measured. In the absence of a usable dedicated beam, the first measurement event is reported to the base station.

[0346] The first measurement event is used for base station activation and / or transmission of all or part of the SSB beams of the first cell.

[0347] In one embodiment, the first measurement event is reported when the following conditions are met:

[0348] The measurement result of the terminal for any dedicated beam is lower than a first preset threshold; and / or,

[0349] The BLER of the terminal for data transmission is higher than the second set threshold.

[0350] In one embodiment, the first measurement event includes first information; the first information includes at least one of the following:

[0351] The terminal's measurement results for the dedicated beam;

[0352] The height of the terminal;

[0353] The distance between the terminal and the base station;

[0354] The speed of the terminal;

[0355] The first angle represents the angle between the line connecting the terminal and the base station and the horizon.

[0356] In one embodiment, the second communication interface 801 is further configured to:

[0357] Receive the second information sent by the base station.

[0358] The second information represents the configuration information corresponding to the SSB beam activated and / or transmitted by the base station.

[0359] In one embodiment, the second information includes at least one of the following:

[0360] Index of SSB beams;

[0361] DMRS information corresponding to the SSB beam;

[0362] The remaining minimum system information corresponding to the SSB beam.

[0363] In one embodiment, the second information is sent via the DCI of the PDCCH.

[0364] In one embodiment, the second communication interface 801 is further configured to:

[0365] When the terminal detects an available dedicated beam, it sends third information to the base station.

[0366] The base station stops transmitting all or part of the SSB beams of the first cell based on the third information.

[0367] In one embodiment, the third information is sent via a RAR message.

[0368] It should be noted that the specific processing procedures of the second processor 802 and the second communication interface 801 can be understood by referring to the above method.

[0369] Of course, in practical applications, the various components in terminal 800 are coupled together through bus system 804. It can be understood that bus system 804 is used to implement communication between these components. In addition to a data bus, bus system 804 also includes a power bus, a control bus, and a status signal bus. However, for clarity, in... Figure 8 The general labeled all buses as Bus System 804.

[0370] The second memory 803 in this embodiment is used to store various types of data to support the operation of the terminal 800. Examples of such data include any computer program used to operate on the terminal 800.

[0371] The methods disclosed in the embodiments of this application can be applied to the second processor 802, or implemented by the second processor 802. The second processor 802 may be an integrated circuit chip with signal processing capabilities. In the implementation process, each step of the above method can be completed by the integrated logic circuit of the hardware or by instructions in the form of software in the second processor 802. The second processor 802 may be a general-purpose processor, a DSP, or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. The second processor 802 can implement or execute the methods, steps, and logic block diagrams disclosed in the embodiments of this application. The general-purpose processor may be a microprocessor or any conventional processor, etc. The steps of the methods disclosed in the embodiments of this application can be directly manifested as being executed by a hardware decoding processor, or being executed by a combination of hardware and software modules in the decoding processor. The software modules may be located in a storage medium, which is located in the second memory 803. The second processor 802 reads the information in the second memory 803 and completes the steps of the aforementioned method in combination with its hardware.

[0372] In an exemplary embodiment, terminal 800 may be implemented by one or more ASICs, DSPs, PLDs, CPLDs, FPGAs, general-purpose processors, controllers, MCUs, microprocessors, or other electronic components to perform the aforementioned method.

[0373] It is understood that the memories (first memory 703, second memory 803) in the embodiments of this application can be volatile memories or non-volatile memories, or both. Non-volatile memories can be read-only memories (ROM), programmable read-only memories (PROM), erasable programmable read-only memories (EPROM), electrically erasable programmable read-only memories (EEPROM), magnetic random access memories (FRAM), flash memories, magnetic surface memories, optical discs, or compact disc read-only memories (CD-ROM); magnetic surface memories can be disk storage or magnetic tape storage. Volatile memories can be random access memories (RAM), which are used as external caches. By way of example, but not limitation, many forms of RAM are available, such as Static Random Access Memory (SRAM), Synchronous Static Random Access Memory (SSRAM), Dynamic Random Access Memory (DRAM), Synchronous Dynamic Random Access Memory (SDRAM), Double Data Rate Synchronous Dynamic Random Access Memory (DDRSDRAM), Enhanced Synchronous Dynamic Random Access Memory (ESDRAM), SyncLink Dynamic Random Access Memory (SLDRAM), and Direct Rambus Random Access Memory (DRRAM).The memories described in the embodiments of this application are intended to include, but are not limited to, these and any other suitable types of memories.

[0374] In an exemplary embodiment, this application also provides a storage medium, namely a computer storage medium, specifically a computer-readable storage medium, such as a first memory 703 storing a computer program, which can be executed by the first processor 702 of the base station 700 to complete the steps described in the aforementioned base station-side method. Another example is a second memory 803 storing a computer program, which can be executed by the second processor 802 of the terminal 800 to complete the steps described in the aforementioned terminal-side method. The computer-readable storage medium can be a memory such as FRAM, ROM, PROM, EPROM, EEPROM, Flash Memory, magnetic surface memory, optical disc, or CD-ROM.

[0375] It should be noted that terms such as "first" and "second" are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence.

[0376] Furthermore, the technical solutions described in the embodiments of this application can be combined arbitrarily without conflict.

[0377] The above description is merely a preferred embodiment of this application and is not intended to limit the scope of protection of this application.

Claims

1. A beam transmission method, characterized in that, Applied to a base station, the method includes: Send the first part of the synchronization signal block SSB beam of the first cell or do not send the SSB beam of the first cell; Under certain predefined conditions, or under predefined time and / or frequency domain information, the SSB beam of the first cell is activated and / or transmitted; the activated and / or transmitted SSB beam is part or all of the other SSB beams in the case where the SSB beam has already been transmitted, or all or part of the SSB beams of the first cell in the case where the SSB beam has not been transmitted; wherein... The SSB beam of the first cell is divided into at least two parts; the set time information and / or frequency domain information are configured in advance by the network through signaling. When activating and / or transmitting the SSB beam of the first cell, the method further includes: Send a second message to the terminal; wherein, The second information represents the configuration information corresponding to the activated and / or transmitted SSB beam.

2. The method according to claim 1, characterized in that, The first part of the SSB beam for transmitting the first cell includes: send m SSB beamforming; among which, The m The SSB beam covers a portion of the first cell; or, the m The SSB beam is for the first cell n SSB beam m SSB beamforming; m Greater than or equal to 1, and m Less than n ; n Greater than 1.

3. The method according to claim 2, characterized in that, In the transmission m After setting the SSB beam, activating and / or transmitting the SSB beam of the first cell includes: Activate and / or send the n In addition to the aforementioned SSB beam m All or part of the SSB beams outside of the SSB beam; or Stop the above m Transmitting the SSB beam, and activating and / or transmitting the aforementioned... n In addition to the aforementioned SSB beam m All or part of the SSB beams outside of the SSB beam.

4. The method according to claim 1, characterized in that, Before transmitting the first portion of the SSB beam of the first cell or not transmitting the SSB beam of the first cell, the method further includes: Configure the SSB beam of the first cell for the terminal through system messages or Radio Resource Control (RRC) signaling.

5. The method according to claim 4, characterized in that, The step of configuring the SSB beam of the first cell for the terminal via system messages or RRC signaling includes: The transmission status of the SSB beam in each of the at least two parts of the SSB beam is indicated by system messages or RRC signaling.

6. The method according to any one of claims 1 to 5, characterized in that, Under certain predefined conditions, activate and / or transmit the SSB beam of the first cell, including: Upon receiving a first measurement event reported by the terminal, the SSB beam of the first cell is activated and / or transmitted; wherein, The first measurement event indicates that the terminal does not have a dedicated beam available.

7. The method according to claim 6, characterized in that, The first measurement event is reported when the following conditions are met: The terminal's measurement result for any dedicated beam is below a first preset threshold; and / or, The block error rate (BLER) of data transmission by the terminal is higher than the second set threshold.

8. The method according to claim 6, characterized in that, The method further includes: The codebook, direction, and transmit power of the activated and / or transmitted SSB beam are determined based on the first information in the first measurement event. The first information includes at least one of the following: The terminal's measurement results for the dedicated beam; Terminal height; The distance between the terminal and the base station; Terminal speed; The first angle represents the angle between the line connecting the terminal and the base station and the horizon.

9. The method according to claim 1, characterized in that, The second information includes at least one of the following: Index of SSB beams; The demodulation reference signal DMRS information corresponding to the SSB beam; The remaining minimum system information corresponding to the SSB beam.

10. The method according to claim 1, characterized in that, The second information is transmitted via Dynamic Downlink Control Information (DCI) through the Physical Downlink Control Channel (PDCCH).

11. The method according to claim 6, characterized in that, The method further includes: Receive third information sent by the terminal; the third information is sent when the terminal measures an available dedicated beam; Based on the third information, the transmission of all or part of the SSB beams of the first cell is stopped.

12. The method according to claim 11, characterized in that, The third piece of information is sent via a random access response (RAR) message.

13. The method according to claim 1, characterized in that, The method further includes: Whether the SSB beam of each of the at least two parts of the SSB beam is transmitted is determined based on one of the following: The number of terminals with a height greater than the set height; The terminal's Quality of Service (QoS) requirements.

14. The method according to claim 1, characterized in that, The method further includes: Based on the terminal's set route, determine whether the SSB beam of each of the at least two parts of the SSB beam is transmitted, and / or determine the activation time of the transmitted SSB beam.

15. A beam transmitting device, characterized in that, include: The first transmitting unit is used to transmit a first part of the SSB beam of the first cell or not to transmit the SSB beam of the first cell. The second transmitting unit is configured to activate and / or transmit the SSB beam of the first cell when preset conditions are met, or when preset time information and / or frequency domain information are met; the activated and / or transmitted SSB beam is part or all of the other SSB beams in the case where SSB beams have already been transmitted, or all or part of the SSB beams of the first cell in the case where SSB beams have not been transmitted; wherein... The SSB beam of the first cell is divided into at least two parts; the set time information and / or frequency domain information are configured in advance by the network through signaling. The third transmitting unit is configured to transmit second information to the terminal when the SSB beam of the first cell is activated and / or transmitted; wherein... The second information represents the configuration information corresponding to the activated and / or transmitted SSB beam.

16. A base station, characterized in that, include: A first processor and a first communication interface; wherein... The first communication interface is used to transmit a first portion of the SSB beam of the first cell or not transmit the SSB beam of the first cell; and to activate and / or transmit the SSB beam of the first cell when a set condition is met, or when set time information and / or frequency domain information is met; wherein the activated and / or transmitted SSB beam is part or all of the other SSB beams when the SSB beam has been transmitted, or all or part of the SSB beams of the first cell when the SSB beam has not been transmitted; wherein, The SSB beam of the first cell is divided into at least two parts; the set time information and / or frequency domain information are configured in advance by the network via signaling. The first communication interface is further configured to send second information to the terminal when the SSB beam of the first cell is activated and / or transmitted; wherein, The second information represents the configuration information corresponding to the activated and / or transmitted SSB beam.

17. A base station, characterized in that, include: A first processor and a first memory for storing computer programs capable of running on the processor. Wherein, when the first processor is used to run the computer program, it performs the steps of the method according to any one of claims 1 to 14.

18. A storage medium having a computer program stored thereon, characterized in that, When the computer program is executed by a processor, it implements the steps of the method according to any one of claims 1 to 14.

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