SSB transmission method and apparatus and storage medium

Abstract

Embodiments of the present disclosure relate to the technical field of communications, and provide an SSB transmission method and apparatus and a storage medium, applied to a terminal. The method comprises: receiving first signaling from a network side device, wherein the first signaling is used for indicating at least one of activation of SSB transmission and deactivation of SSB transmission; and performing SSB transmission on the basis of the first signaling.

Description

SSB transmission method, device and storage medium

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application claims priority to Chinese patent application No. 2024104032541, filed on April 3, 2024, entitled “SSB transmission method, device and storage medium”, which is incorporated herein by reference in its entirety. Technical Field

[0003] The present disclosure relates to the field of communication technology, and in particular to a SSB transmission method, device, and storage medium. Background Art

[0004] The synchronization block (SSB) in the current system is a periodic signal. Each SSB indicates parameters such as the number and position of the SSB through the ssb-PositionsInBurst signaling. In the carrier aggregation (CA) scenario, the SSB configuration of the primary cell (PCell) is performed through the system information block (SIB) 1, and the SSB configuration of the secondary cell (SCell) is performed for each SCell through the radio resource control (RRC). The base station always transmits the SSB according to the configuration.

[0005] However, the current SSB transmission is periodic, and the SSB parameters can only be reconfigured through static signaling SIB1 or RRC, resulting in high energy consumption on the network side and the terminal. Summary of the Invention

[0006] The embodiments of the present disclosure provide an SSB transmission method, device, and storage medium to solve the problem in related technologies that reconfiguration of SSB transmission leads to high energy consumption on the network side and the terminal.

[0007] In a first aspect, an embodiment of the present disclosure provides an SSB transmission method, applied to a terminal, including:

[0008] Receive a first signaling from a network-side device; wherein the first signaling is used to indicate at least one of activating SSB transmission and deactivating SSB transmission;

[0009] SSB transmission is performed based on the first signaling.

[0010] In some embodiments, the first signaling includes at least one of the following:

[0011] Serving cell index;

[0012] SSB activation indication information, used to indicate activation of SSB transmission;

[0013] SSB deactivation indication information is used to indicate deactivation of SSB transmission;

[0014] SSB configuration index;

[0015] SSB type indication information, used to indicate the type of SSB transmission;

[0016] SSB deactivation type indication information is used to indicate the conditions for deactivating SSB transmission;

[0017] Number of SSB transmissions;

[0018] First time;

[0019] Cycle switching indication information, used to indicate whether to change the SSB transmission cycle;

[0020] SSB status value, used to indicate whether to change the current SSB transmission status;

[0021] Secondary cell SCell activation flag;

[0022] SCell deactivation flag.

[0023] In some embodiments, the method further includes: receiving SSB type indication information from the network side device.

[0024] In some embodiments, the SSB type indication information includes at least one of the following:

[0025] The number and position of SSBs in an SSB burst;

[0026] At least one SSB period or SSB burst set interval;

[0027] SSB subcarrier spacing;

[0028] SSB power;

[0029] SSB start time.

[0030] In some embodiments, the method further comprises:

[0031] In case the first event occurs, the current SSB transmission state is changed;

[0032] or,

[0033] upon receiving a second signaling from the network-side device, changing a current SSB transmission state;

[0034] or,

[0035] When the number of SSB transmissions in the first signaling is reached, changing the current SSB transmission state;

[0036] or,

[0037] The timing starts from activating the SSB transmission, and when the first time in the first signaling passes, the current SSB transmission state is changed.

[0038] In some embodiments, changing the current SSB transmission state includes:

[0039] Stop SSB transmission;

[0040] or,

[0041] When the current SSB transmission state is SSB transmission through first parameters, switch to SSB transmission through at least one set of second parameters; wherein the at least one set of second parameters is different from the first parameters.

[0042] In some embodiments, stopping SSB transmission includes:

[0043] When the first signaling includes the SSB configuration index, stop transmitting the first SSB; wherein the first SSB is the SSB corresponding to the SSB configuration index;

[0044] When the SSB configuration index is not included in the first signaling, the transmission of the second SSB is stopped; wherein the second SSB is the SSB corresponding to the SSB parameters configured for the SCell by the high-level signaling.

[0045] In some embodiments, the switching to performing SSB transmission using at least one set of second parameters includes:

[0046] When the first signaling includes the SSB configuration index, switching the SSB transmission of the first SSB using the first parameter to the SSB transmission using the at least one set of second parameters; wherein the first SSB is the SSB corresponding to the SSB configuration index;

[0047] When the SSB configuration index is not included in the first signaling, the second SSB is switched from SSB transmission through the first parameter to SSB transmission through at least one set of second parameters; wherein, the second SSB is the SSB corresponding to the SSB parameter configured for the SCell by the high-level signaling.

[0048] In some embodiments, the first event includes at least one of the following:

[0049] Receiving SCell activation signaling sent by the network-side device;

[0050] Receiving SCell deactivation signaling sent by the network-side device;

[0051] receiving a channel state information reference signal CSI-RS activation signaling sent by the network side device, where the CSI-RS activation signaling is used by the terminal to report channel state information CSI;

[0052] receiving a CSI-RS configuration signaling sent by the network-side device, where the CSI-RS configuration signaling is used by the terminal to report CSI;

[0053] Receiving a transmission configuration indication TCI state activation signaling sent by the network side device;

[0054] Report at least one valid CSI;

[0055] Report layer 1 reference signal received power RSRP;

[0056] Report layer 3 RSRP.

[0057] In some embodiments, the second signaling includes at least one of the following:

[0058] Serving cell index;

[0059] SSB activation instruction information;

[0060] SSB deactivation indication information;

[0061] Periodic switching indication information;

[0062] SSB status value;

[0063] SCell activation flag;

[0064] SCell deactivation flag.

[0065] In some embodiments, the first signaling and the second signaling include at least one of the following:

[0066] Downlink control information DCI signaling;

[0067] Media Access Control Unit MAC-CE signaling;

[0068] Radio Resource Control (RRC) signaling.

[0069] In some embodiments, the DCI signaling is scrambled with a Radio Network Temporary Identifier (RNTI), and the RNTI is used to indicate activation or deactivation of SSB transmission.

[0070] In a second aspect, an embodiment of the present disclosure further provides an SSB transmission method, which is applied to a network-side device, and the method includes:

[0071] Send a first signaling to the terminal; wherein the first signaling is used to indicate at least one of activating SSB transmission and deactivating SSB transmission.

[0072] In some embodiments, the first signaling includes at least one of the following:

[0073] Serving cell index;

[0074] SSB activation indication information, used to indicate activation of SSB transmission;

[0075] SSB deactivation indication information is used to indicate deactivation of SSB transmission;

[0076] SSB configuration index;

[0077] SSB type indication information, used to indicate the type of SSB transmission;

[0078] SSB deactivation type indication information is used to indicate the conditions for deactivating SSB transmission;

[0079] Number of SSB transmissions;

[0080] First time;

[0081] Cycle switching indication information, used to indicate whether to change the SSB transmission cycle;

[0082] SSB status value, used to indicate whether to change the current SSB transmission status;

[0083] Secondary cell SCell activation flag;

[0084] SCell deactivation flag.

[0085] In some embodiments, the method further includes: sending SSB type indication information to the terminal.

[0086] In some embodiments, the SSB type indication information includes at least one of the following:

[0087] The number and position of SSBs in an SSB burst;

[0088] At least one SSB period or SSB burst set interval;

[0089] SSB subcarrier spacing;

[0090] SSB power;

[0091] SSB start time.

[0092] In some embodiments, the method further comprises:

[0093] In case the second event occurs, the current SSB transmission state is changed;

[0094] or,

[0095] Sending a second signaling to the terminal, where the second signaling is used to instruct a change in a current SSB transmission state;

[0096] or,

[0097] When the number of SSB transmissions in the first signaling is reached, changing the current SSB transmission state;

[0098] or,

[0099] The timing starts from activating the SSB transmission, and when the first time in the first signaling passes, the current SSB transmission state is changed.

[0100] In some embodiments, changing the current SSB transmission state includes:

[0101] Stop SSB transmission;

[0102] or,

[0103] When the current SSB transmission state is SSB transmission through first parameters, switch to SSB transmission through at least one set of second parameters; wherein the at least one set of second parameters is different from the first parameters.

[0104] In some embodiments, stopping SSB transmission includes:

[0105] When the first signaling includes the SSB configuration index, stop transmitting the first SSB; wherein the first SSB is the SSB corresponding to the SSB configuration index;

[0106] When the SSB configuration index is not included in the first signaling, the transmission of the second SSB is stopped; wherein the second SSB is the SSB corresponding to the SSB parameters configured for the SCell by the high-level signaling.

[0107] In some embodiments, the switching to performing SSB transmission using at least one set of second parameters includes:

[0108] When the first signaling includes the SSB configuration index, switching the SSB transmission of the first SSB using the first parameter to the SSB transmission using the at least one set of second parameters; wherein the first SSB is the SSB corresponding to the SSB configuration index;

[0109] When the SSB configuration index is not included in the first signaling, the second SSB is switched from SSB transmission through the first parameter to SSB transmission through at least one set of second parameters; wherein, the second SSB is the SSB corresponding to the SSB parameter configured for the SCell by the high-level signaling.

[0110] In some embodiments, the second event includes at least one of the following:

[0111] Send SCell activation signaling;

[0112] Send SCell deactivation signaling;

[0113] Sending a channel state information reference signal CSI-RS activation signaling, where the CSI-RS activation signaling is used by the terminal to report channel state information CSI;

[0114] Send CSI-RS configuration signaling, where the CSI-RS configuration signaling is used by the terminal to report CSI;

[0115] Sending transmission configuration indication TCI state activation signaling;

[0116] receiving at least one valid CSI reported by the terminal;

[0117] receiving a layer 1 reference signal received power RSRP reported by the terminal;

[0118] Receive the layer 3 RSRP reported by the terminal.

[0119] In some embodiments, the second signaling includes at least one of the following:

[0120] Serving cell index;

[0121] SSB activation instruction information;

[0122] SSB deactivation indication information;

[0123] Periodic switching indication information;

[0124] SSB status value;

[0125] SCell activation flag;

[0126] SCell deactivation flag.

[0127] In some embodiments, the first signaling and the second signaling include at least one of the following:

[0128] Downlink control information DCI signaling;

[0129] Media Access Control Unit MAC-CE signaling;

[0130] Radio Resource Control (RRC) signaling.

[0131] In some embodiments, the DCI signaling is scrambled with a Radio Network Temporary Identifier (RNTI), and the RNTI is used to indicate activation or deactivation of SSB transmission.

[0132] In a third aspect, an embodiment of the present disclosure further provides a terminal, including a memory, a transceiver, and a processor, wherein:

[0133] A memory for storing a computer program; a transceiver for sending and receiving data under the control of the processor; and a processor for reading the computer program in the memory and implementing the steps of the SSB transmission method described in the first aspect above.

[0134] In a fourth aspect, an embodiment of the present disclosure further provides a network-side device, including a memory, a transceiver, and a processor, wherein:

[0135] A memory for storing a computer program; a transceiver for sending and receiving data under the control of the processor; and a processor for reading the computer program in the memory and implementing the steps of the SSB transmission method described in the second aspect above.

[0136] In a fifth aspect, an embodiment of the present disclosure further provides an SSB transmission device, applied to a terminal, the device comprising:

[0137] A receiving unit, configured to receive a first signaling from a network-side device; wherein the first signaling is used to indicate at least one of activating SSB transmission and deactivating SSB transmission;

[0138] An SSB transmission unit is used to perform SSB transmission based on the first signaling.

[0139] In a sixth aspect, an embodiment of the present disclosure further provides an SSB transmission device, which is applied to a network-side device, and the device includes:

[0140] A sending unit, used to send a first signaling to a terminal; wherein the first signaling is used to indicate at least one of activating SSB transmission and deactivating SSB transmission.

[0141] In the seventh aspect, an embodiment of the present disclosure also provides a processor-readable storage medium, which stores a computer program, and the computer program is used to enable the processor to execute the steps of the SSB transmission method described in the first aspect, or execute the steps of the SSB transmission method described in the second aspect.

[0142] In the SSB transmission method, device, and storage medium provided by the embodiments of the present disclosure, the terminal receives a first signaling from a network-side device, and the first signaling is used to indicate at least one of activation of SSB transmission and deactivation of SSB transmission, and then the terminal performs SSB transmission based on the first signaling. Compared with the related art in which SSB transmission is periodic and SSB parameters can only be reconfigured through static signaling SIB1 or RRC, resulting in high energy consumption on the network side and the terminal, the network-side device in the present disclosure can dynamically and flexibly instruct the terminal to synchronously activate and / or deactivate SSB transmission through the first signaling, which can reduce the energy consumption of the network side and the terminal to a certain extent compared to reconfiguring SSB parameters through SIB1 or RRC. BRIEF DESCRIPTION OF THE DRAWINGS

[0143] In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure or related technologies, the following is a brief introduction to the drawings required for use in the embodiments or related technical descriptions. Obviously, the drawings described below are some embodiments of the present disclosure. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0144] FIG1 is a flow chart of a method for transmitting SSB according to an embodiment of the present disclosure;

[0145] FIG2 is a second flow chart of the SSB transmission method provided in an embodiment of the present disclosure;

[0146] FIG3 is a schematic diagram of a transmission of a type 1 on-demand SSB on ServingCell_index1 in the SSB transmission method provided by an embodiment of the present disclosure;

[0147] FIG4 is a schematic diagram of transmission of a type 2 on-demand SSB at ServingCell_index2 in the SSB transmission method provided by an embodiment of the present disclosure;

[0148] FIG5 is a second schematic diagram of transmission of type 1 on-demand SSB on ServingCell_index1 in the SSB transmission method provided by an embodiment of the present disclosure;

[0149] FIG6 is a second schematic diagram of transmission of type 2 on-demand SSB at ServingCell_index2 in the SSB transmission method provided by an embodiment of the present disclosure;

[0150] FIG7 is a schematic diagram of transmission of type 1 on-demand SSB on ServingCell_index3 in the SSB transmission method provided in an embodiment of the present disclosure;

[0151] FIG8 is a third schematic diagram of transmission of type 1 on-demand SSB on ServingCell_index1 in the SSB transmission method provided by an embodiment of the present disclosure;

[0152] FIG9 is a third schematic diagram of transmission of type 2 on-demand SSB on ServingCell_index2 in the SSB transmission method provided in an embodiment of the present disclosure;

[0153] FIG10 is a schematic structural diagram of a terminal provided in an embodiment of the present disclosure;

[0154] FIG11 is a schematic structural diagram of a network-side device provided in an embodiment of the present disclosure;

[0155] FIG12 is a schematic diagram of a structure of an SSB transmission device according to an embodiment of the present disclosure;

[0156] FIG13 is a second structural diagram of the SSB transmission device provided in an embodiment of the present disclosure. DETAILED DESCRIPTION

[0157] In the embodiments of the present disclosure, the term "and / or" describes the association relationship between associated objects, indicating that three relationships can exist. For example, A and / or B can represent three situations: A exists alone, A and B exist simultaneously, and B exists alone. The character " / " generally indicates that the associated objects are in an "or" relationship.

[0158] In the embodiments of the present disclosure, the term "plurality" refers to two or more than two, and other quantifiers are similar thereto.

[0159] The technical solution provided by the embodiments of the present disclosure can be applicable to a variety of systems, especially 5G systems. For example, applicable systems may be global system of mobile communication (GSM) systems, code division multiple access (CDMA) systems, wideband code division multiple access (WCDMA) general packet radio service (GPRS) systems, long term evolution (LTE) systems, LTE frequency division duplex (FDD) systems, LTE time division duplex (TDD) systems, long term evolution advanced (LTE-A) systems, universal mobile telecommunication systems (UMTS), worldwide interoperability for microwave access (WiMAX) systems, 5G new air interface (NR) systems, etc. These various systems include terminal devices and network devices. The system may also include a core network part, such as an evolved packet system (EPS), a 5G system (5GS), etc.

[0160] The terminal device involved in the embodiments of the present disclosure may be a device that provides voice and / or data connectivity to a user, a handheld device with wireless connection function, or other processing device connected to a wireless modem. In different systems, the name of the terminal device may also be different. For example, in a 5G system, the terminal device may be called User Equipment (UE). A wireless terminal device can communicate with one or more core networks (CN) via a radio access network (RAN). The wireless terminal device may be a mobile terminal device, such as a mobile phone (or "cellular" phone) and a computer with a mobile terminal device. For example, it may be a portable, pocket-sized, handheld, computer-built-in or vehicle-mounted mobile device that exchanges voice and / or data with a radio access network. For example, Personal Communication Service (PCS) phones, cordless phones, Session Initiated Protocol (SIP) phones, Wireless Local Loop (WLL) stations, Personal Digital Assistants (PDAs), and other devices. The wireless terminal device may also be referred to as a system, a subscriber unit, a subscriber station, a mobile station, a mobile station, a remote station, an access point, a remote terminal device, an access terminal device, a user terminal device, a user agent, or a user device, but is not limited in the embodiments of the present disclosure.

[0161] The network device involved in the embodiments of the present disclosure may be a base station, which may include multiple cells providing services to terminals. Depending on the specific application scenario, the base station may also be called an access point, or may be a device in an access network that communicates with a wireless terminal device through one or more sectors on an air interface, or may be called another name. The network device may be used to interchange received air frames with Internet Protocol (IP) packets, acting as a router between the wireless terminal device and the rest of the access network, wherein the rest of the access network may include an Internet Protocol (IP) communication network. The network device may also coordinate the attribute management of the air interface. For example, the network device involved in the embodiments of the present disclosure may be a base transceiver station (BTS) in the Global System for Mobile communications (GSM) or code division multiple access (CDMA), a network device (NodeB) in wide-band code division multiple access (WCDMA), an evolutionary Node B (eNB or e-NodeB) in the long term evolution (LTE) system, a 5G base station (gNB) in the 5G network architecture (next generation system), a home evolved Node B (HeNB), a relay node, a femto, a pico, etc., and is not limited in the embodiments of the present disclosure. In some network structures, the network device may include a centralized unit (CU) node and a distributed unit (DU) node, and the centralized unit and the distributed unit may also be geographically separated.

[0162] Network devices and terminal devices can each use one or more antennas for Multiple Input Multiple Output (MIMO) transmission. MIMO transmission can be single-user MIMO (SU-MIMO) or multi-user MIMO (MU-MIMO). Depending on the configuration and number of antenna combinations, MIMO transmission can be 2D-MIMO, 3D-MIMO, FD-MIMO, or massive-MIMO. It can also use diversity transmission, precoding, or beamforming.

[0163] The following will be combined with the accompanying drawings in the embodiments of the present disclosure to clearly and completely describe the technical solutions in the embodiments of the present disclosure. Obviously, the embodiments described are only part of the embodiments of the present disclosure and not all of the embodiments. Based on the embodiments of the present disclosure, all other embodiments obtained by ordinary technicians in this field without making any creative efforts shall fall within the scope of protection of the present disclosure.

[0164] The following describes the SSB transmission method, device, and storage medium provided by the embodiments of the present disclosure. The method and device are based on the same application concept. Since the method and device solve similar problems, the implementation of the device and method can refer to each other, and the repetitive parts will not be repeated.

[0165] The present disclosure provides a method for transmitting SSB, which can be performed by a terminal, such as a mobile phone. FIG1 is a flow chart of the method for transmitting SSB provided by the present disclosure. As shown in FIG1 , the method includes:

[0166] Step 101: Receive a first signaling from a network-side device; wherein the first signaling is used to indicate at least one of activating SSB transmission and deactivating SSB transmission;

[0167] Step 102: Perform SSB transmission based on the first signaling.

[0168] In related technologies, SSB transmission is periodic, and the base station cannot dynamically adjust the transmission and shutdown of SSB according to the business needs of the actual scenario. It can only update the SSB parameters through static signaling SIB1 or RRC, which will cause high energy consumption of the network and terminal.

[0169] In response to the above problems, an embodiment of the present disclosure provides an SSB transmission method, which is applied to a terminal. This SSB transmission method can be understood as an on-demand SSB transmission mechanism, which is specifically implemented by a first signaling sent by a network side device to the terminal. The first signaling can dynamically indicate the activation of SSB transmission and / or deactivation of SSB transmission, and then the base station performs SSB transmission based on the first signaling to perform SSB transmission synchronously with the network side device.

[0170] In some embodiments, the first signaling may include at least one of the following:

[0171] 1) Downlink Control Information (DCI) signaling;

[0172] 2) Medium Access Control-Control Element (MAC-CE) signaling;

[0173] 3)RRC signaling.

[0174] In the SSB transmission method provided by the embodiment of the present disclosure, the terminal receives a first signaling from a network-side device, and the first signaling is used to indicate at least one of activating SSB transmission and deactivating SSB transmission, and then the terminal performs SSB transmission based on the first signaling. Compared with the related art in which SSB transmission is periodic and SSB parameters can only be reconfigured through static signaling SIB1 or RRC, resulting in high energy consumption on the network side and the terminal, the network-side device in the present disclosure can dynamically and flexibly instruct the terminal to synchronously activate and / or deactivate SSB transmission through the first signaling, which can reduce the energy consumption of the network side and the terminal to a certain extent compared to reconfiguring SSB parameters through SIB1 or RRC.

[0175] In some embodiments, the first signaling may include at least one of the following:

[0176] 1) Serving cell index;

[0177] Specifically, the serving cell index is used to indicate the serving cell corresponding to activating SSB transmission and / or deactivating SSB transmission.

[0178] 2) SSB activation indication information, used to indicate activation of SSB transmission;

[0179] For example, when the SSB activation indication information is set to 1, it indicates to activate SSB transmission; when the SSB activation indication information is 0, it indicates to deactivate SSB transmission. The specific corresponding relationship can be set according to actual conditions.

[0180] 3) SSB deactivation indication information, used to indicate deactivation of SSB transmission;

[0181] For example, when the SSB deactivation indication information is set to 1, it indicates deactivation of SSB transmission; when the SSB activation indication information is 0, it indicates activation of SSB transmission. The specific corresponding relationship can be set according to actual conditions.

[0182] 4)SSB configuration index;

[0183] Specifically, when multiple sets of SSB parameters are configured, the SSB configuration index can be used to indicate which set of SSB parameters to use to activate SSB transmission or deactivate SSB transmission.

[0184] 5) SSB type indication information, used to indicate the type of SSB transmission;

[0185] In some embodiments, the SSB type indication information may include at least one of the following:

[0186] <1> The number and position of SSBs in an SSB burst can be indicated using a bitmap;

[0187] <2> At least one SSB period or SSB burst set interval;

[0188] In some embodiments, if the SSB type indication information includes only one SSB cycle or SSB burst set interval T1, it is considered that the SSB transmission is activated with T1, and after the SSB transmission is deactivated through an indication such as signaling or an event, the SSB transmission is stopped.

[0189] In other embodiments, if the SSB type indication information includes multiple SSB periods or SSB burst set intervals, for example, period or SSB burst set interval T1 and period or SSB burst set interval T2, it can be considered that the SSB transmission is activated with T1, and after the SSB transmission is deactivated through signaling or events, the SSB transmission is changed to T2.

[0190] <3> SSB subcarrier spacing;

[0191] <4> SSB power;

[0192] <5> SSB start time.

[0193] For example, the base station configures type 1 SSB parameters for serving cell index 1 (ServingCell_index1) through RRC signaling. Type 1 SSB parameters include one or more of the following:

[0194] 1>The number and position of SSBs in an SSB burst (indicated by bitmap);

[0195] 2>SSB period or SSB burst interval;

[0196] 3>SSB subcarrier spacing;

[0197] 4>SSB power;

[0198] 5>SSB start time.

[0199] Alternatively, the base station configures type 2 SSB parameters for ServingCell_index1. Type 2 SSB parameters include one or more of the following:

[0200] 1>The number and position of SSBs in an SSB burst (indicated by bitmap);

[0201] 2>SSB cycle or SSB burst interval T1, SSB cycle or burst interval T2;

[0202] 3>SSB subcarrier spacing;

[0203] 4>SSB power;

[0204] 5>SSB start time.

[0205] The terminal can determine whether to select type 1 or type 2 SSB parameters for SSB transmission through the SSB type indication information in the first signaling.

[0206] In some embodiments, the terminal may receive SSB type indication information from the network side device.

[0207] Specifically, the SSB type indication information can be carried in the first signaling for transmission; or it may not be carried in the first signaling, but carried and transmitted through other signaling other than the first signaling, that is, the terminal can receive the SSB type indication information from the network side device through other signaling independently of the first signaling.

[0208] 6) SSB deactivation type indication information, used to indicate the conditions for deactivating SSB transmission;

[0209] Specifically, after some first events are predefined or configured through the network side device, the SSB deactivation type indication information in the first signaling can indicate which event is used as the condition for deactivating SSB transmission.

[0210] 7) Number of SSB transmissions;

[0211] Specifically, the terminal can clearly indicate the number of SSB transmissions through the number of SSB transmissions in the first signaling, and deactivate the SSB transmission after reaching the number of SSB transmissions, which is equivalent to simultaneously indicating the time to activate and deactivate SSB transmission through the first signaling.

[0212] 8) First time;

[0213] Specifically, the terminal can clearly indicate the duration of activating SSB transmission through the first time in the first signaling, that is, the time for activating SSB transmission and deactivating SSB transmission is simultaneously indicated through the first signaling.

[0214] It should be noted that the first time can be set according to actual conditions, and the timer T can be set to count.

[0215] 9) Cycle switching indication information, used to indicate whether to change the SSB transmission cycle;

[0216] Specifically, the terminal can determine whether the period of SSB transmission needs to be changed through the period switching indication information in the first signaling. For example, when the period switching indication information is 1, it can indicate that this signaling is used for the period change of SSB.

[0217] 10) SSB status value, used to indicate whether to change the current SSB transmission status;

[0218] Specifically, the terminal can determine whether to change the current SSB transmission state through the SSB state value in the first signaling. Specifically, it can be understood as determining to maintain the current SSB transmission state or change the current SSB transmission state. The current SSB transmission state may include performing SSB transmission and not performing SSB transmission.

[0219] For example, if the SSB status value is 1, it may indicate that the SSB transmission is triggered; if the SSB status value is 0, it may indicate that the current SSB transmission status is maintained. Here, it can be understood that if there is currently an on-demand SSB (SSB requested on demand) transmission, the transmission will continue; if there is currently no on-demand SSB transmission, the on-demand SSB transmission will still not be performed.

[0220] It should be noted that in the embodiment of the present disclosure, the first signaling includes simultaneous indications of multiple SCells. In a typical scenario, only the SSBs on some of the SCells will be deactivated, while the SSBs on other SCells will not be deactivated. To achieve this purpose, the present disclosure introduces an SSB state value field in the deactivation signaling. Through its different values, it indicates whether the SSB on each SCell maintains the existing state or changes the existing state, thereby realizing the deactivation of the SSB on some SCells.

[0221] 11) SCell activation flag;

[0222] 12) SCell deactivation flag.

[0223] Specifically, the SCell activation flag is used to indicate activation of the Scell; and the SCell deactivation flag is used to indicate deactivation of the Scell.

[0224] In some embodiments, the terminal may further perform the following steps:

[0225] 1) When the first event occurs, change the current SSB transmission state;

[0226] or,

[0227] 2) upon receiving a second signaling from the network-side device, changing the current SSB transmission state;

[0228] or,

[0229] 3) when the number of SSB transmissions in the first signaling is reached, changing the current SSB transmission state;

[0230] or,

[0231] 4) Starting from the activation of SSB transmission, when the first time in the first signaling passes, changing the current SSB transmission state.

[0232] Specifically, the embodiments of the present disclosure provide several situations in which the terminal changes the current SSB transmission state, which can be summarized as follows:

[0233] Case 1: When the first event occurs, the terminal changes the current SSB transmission state;

[0234] In some embodiments, the first event may include at least one of the following:

[0235] 1> Receive SCell activation signaling sent by the network side device;

[0236] 2> Receive SCell deactivation signaling sent by the network side device;

[0237] 3> receiving a Channel State Information Reference Signal (CSI-RS) activation signaling sent by the network-side device, where the CSI-RS activation signaling is used by the terminal to report Channel State Information (CSI);

[0238] 4> receiving CSI-RS configuration signaling sent by the network side device, where the CSI-RS configuration signaling is used by the terminal to report CSI;

[0239] 5> receiving a Transmission Configuration Indication (TCI) state activation signaling sent by the network side device;

[0240] 6> Report at least one valid CSI;

[0241] 7>Reporting layer 1 reference signal received power (RSRP);

[0242] 8> Report layer 3 RSRP.

[0243] Specifically, it is equivalent to adopting an implicit method, by associating the change of the current SSB transmission state with the first event, thereby saving the transmission of additional deactivation signaling, and saving signaling overhead.

[0244] It should be noted that the first event can be configured in advance to the terminal side by the network side device, or it can be predefined on the terminal side. The present disclosure introduces different first events according to different scenarios, and can introduce event indications in the activation signaling (that is, the first signaling) to ensure that the terminal and the base station have the same understanding of the moment of changing the current SSB transmission state.

[0245] Case 2: When the terminal receives the second signaling from the network side device, it changes the current SSB transmission state, which is equivalent to using an explicit method to send a deactivation signaling (ie, the second signaling).

[0246] In some embodiments, the second signaling may include at least one of the following:

[0247] 1>Serving cell index;

[0248] 2>SSB activation indication information;

[0249] 3>SSB deactivation indication information;

[0250] 4> Cycle switching indication information;

[0251] 5>SSB status value;

[0252] 6>SCell activation flag;

[0253] 7>SCell deactivation flag.

[0254] In some embodiments, the first signaling and the second signaling may include at least one of the following:

[0255] 1) DCI signaling;

[0256] 2) MAC-CE signaling;

[0257] 3)RRC signaling.

[0258] Specifically, here it means that the first signaling may include at least one of DCI signaling, MAC-CE signaling and RRC signaling; the second signaling may also include at least one of DCI signaling, MAC-CE signaling and RRC signaling.

[0259] It should be noted that the first signaling and the second signaling may include the same or different signaling, for example, the first signaling includes DCI signaling, and the second signaling includes MAC-CE signaling; for another example, the first signaling and the second signaling both include DCI signaling.

[0260] In some embodiments, the DCI signaling may be scrambled with a Radio Network Temporary Identity (RNTI), where the RNTI is used to indicate activation or deactivation of SSB transmission.

[0261] Specifically, different RNTIs may be used to scramble the signaling, corresponding to activating or deactivating SSB transmission.

[0262] For example, for DCI signaling, when RNTI1 is used for scrambling, it indicates that this signaling is used to activate SSB transmission; and when RNTI2 is used for scrambling, it indicates that this signaling is used to deactivate SSB transmission.

[0263] In the embodiment of the present disclosure, whether to activate or deactivate SSB transmission can be indicated by SSB activation indication information and SSB deactivation indication information, or by RNTI scrambling.

[0264] Case 3: The terminal may use the SSB transmission count in the first signaling to determine when to deactivate SSB transmission, and specifically change the current SSB transmission state when the SSB transmission count in the first signaling is reached;

[0265] Case 4: The terminal can use the first time in the first signaling to determine when to activate the SSB transmission. Specifically, the timing starts from the activation of the SSB transmission. When the first time has passed, the current SSB transmission state is changed. Specifically, a timer T can be set for timing.

[0266] In some embodiments, the implementation of changing the current SSB transmission state may include:

[0267] <1> Stop SSB transmission;

[0268] or,

[0269] <2> When the current SSB transmission state is SSB transmission through first parameters, switch to SSB transmission through at least one set of second parameters; wherein the at least one set of second parameters is different from the first parameters.

[0270] Specifically, when the terminal activates SSB transmission through the first signaling, the terminal starts SSB transmission with the first parameter. When the terminal determines that the current SSB transmission state needs to be changed, it can choose to stop SSB transmission according to the instructions in the first signaling or the second signaling, or switch to SSB transmission through at least one set of second parameters. Here, the second parameter is different from the first parameter. The specific first parameter and the second parameter, for example, include the period of SSB transmission, which can also be set according to actual conditions and will not be repeated in this disclosure.

[0271] In some embodiments, the implementation of stopping SSB transmission may include:

[0272] 1) When the first signaling includes the SSB configuration index, stop transmitting a first SSB; wherein the first SSB is the SSB corresponding to the SSB configuration index;

[0273] 2) When the first signaling does not include the SSB configuration index, stop transmitting the second SSB; wherein the second SSB is the SSB corresponding to the SSB parameters configured for the SCell by the high-level signaling.

[0274] In some embodiments, the switching to SSB transmission using at least one set of second parameters may include:

[0275] 1) When the first signaling includes the SSB configuration index, switching the SSB transmission of a first SSB using the first parameter to the SSB transmission using the at least one set of second parameters; wherein the first SSB is the SSB corresponding to the SSB configuration index;

[0276] 2) When the SSB configuration index is not included in the first signaling, the second SSB is switched from SSB transmission through the first parameter to SSB transmission through at least one set of second parameters; wherein the second SSB is the SSB corresponding to the SSB parameter configured for the SCell by the high-level signaling.

[0277] Specifically, when the SSB configuration index is included in the first signaling, the transmission of the SSB corresponding to the SSB configuration index may be stopped, or the SSB corresponding to the SSB configuration index may be switched to be transmitted using the second parameter;

[0278] When the SSB configuration index is not included in the first signaling, the transmission of the SSB corresponding to the SSB parameters configured for this service cell by the high-level signaling can be stopped, or the SSB corresponding to the SSB parameters configured for this service cell by the high-level signaling can be switched to use the second parameters for transmission.

[0279] The present disclosure provides an SSB transmission method, which may be performed by a network-side device. FIG2 is a second flow chart of the SSB transmission method provided by the present disclosure. As shown in FIG2 , the method includes:

[0280] Step 201: Send a first signaling to the terminal; wherein the first signaling is used to indicate at least one of activating SSB transmission and deactivating SSB transmission.

[0281] Specifically, the network side device can send a first signaling to the terminal to instruct the terminal to activate SSB transmission and / or deactivate at least one of SSB transmission, which is equivalent to instructing the terminal to synchronize SSB transmission with itself through the first signaling; after receiving the first signaling, the terminal will perform SSB transmission based on the first signaling.

[0282] In the SSB transmission method provided by the embodiment of the present disclosure, the network side device can dynamically and flexibly instruct the terminal to synchronously activate and / or deactivate SSB transmission through the first signaling. Compared with the related art of reconfiguring SSB parameters through SIB1 or RRC, it can reduce the energy consumption of the network side and the terminal to a certain extent.

[0283] In some embodiments, the first signaling may include at least one of the following:

[0284] 1) Serving cell index;

[0285] 2) SSB activation indication information, used to indicate activation of SSB transmission;

[0286] 3) SSB deactivation indication information, used to indicate deactivation of SSB transmission;

[0287] 4)SSB configuration index;

[0288] 5) SSB type indication information, used to indicate the type of SSB transmission;

[0289] 6) SSB deactivation type indication information, used to indicate the conditions for deactivating SSB transmission;

[0290] 7) Number of SSB transmissions;

[0291] 8) First time;

[0292] 9) Cycle switching indication information, used to indicate whether to change the SSB transmission cycle;

[0293] 10) SSB status value, used to indicate whether to change the current SSB transmission status;

[0294] 11) SCell activation flag;

[0295] 12) SCell deactivation flag.

[0296] In some embodiments, the network side device may send SSB type indication information to the terminal.

[0297] Specifically, the network side device can send SSB type indication information to the terminal in a manner independent of the first signaling.

[0298] In some embodiments, the SSB type indication information may include at least one of the following:

[0299] <1> The number and position of SSBs in an SSB burst;

[0300] <2> At least one SSB period or SSB burst set interval;

[0301] <3> SSB subcarrier spacing;

[0302] <4> SSB power;

[0303] <5> SSB start time.

[0304] In some embodiments, the network-side device may further perform the following steps:

[0305] 1) when the second event occurs, changing the current SSB transmission state;

[0306] or,

[0307] 2) sending a second signaling to the terminal, where the second signaling is used to instruct a change in a current SSB transmission state;

[0308] or,

[0309] 3) when the number of SSB transmissions in the first signaling is reached, changing the current SSB transmission state;

[0310] or,

[0311] 4) Starting from the activation of SSB transmission, when the first time in the first signaling passes, changing the current SSB transmission state.

[0312] Specifically, the network-side device needs to maintain SSB transmission synchronization with the terminal-side. Therefore, corresponding to the terminal side, the current SSB transmission state can be changed in the following four situations:

[0313] Case 1: When the second event occurs, the network-side device changes the current SSB transmission state, that is, an implicit method is used to indicate when to change the current SSB transmission state;

[0314] In some embodiments, the second event may include at least one of the following:

[0315] 1>Send SCell activation signaling;

[0316] 2>Send SCell deactivation signaling;

[0317] 3> Send CSI-RS activation signaling, which is used by the terminal to report CSI;

[0318] 4> Send CSI-RS configuration signaling, which is used by the terminal to report CSI;

[0319] 5>Send TCI status activation signaling;

[0320] 6> receiving at least one valid CSI reported by the terminal;

[0321] 7> receiving the layer 1 RSRP reported by the terminal;

[0322] 8> Receive the layer 3 RSRP reported by the terminal.

[0323] It should be noted that the second event corresponds to the first event, the difference being that the two events correspond to actions of the network-side device and the terminal-side, respectively.

[0324] Case 2: The network-side device sends a second signaling to the terminal. The second signaling is used to indicate a change in the current SSB transmission state. That is, the second signaling is used to explicitly indicate when to change the current SSB transmission state.

[0325] In some embodiments, the second signaling may include at least one of the following:

[0326] 1>Serving cell index;

[0327] 2>SSB activation indication information;

[0328] 3>SSB deactivation instruction information;

[0329] 4> Cycle switching indication information;

[0330] 5>SSB status value;

[0331] 6>SCell activation flag;

[0332] 7>SCell deactivation flag.

[0333] In some embodiments, the first signaling and the second signaling may include at least one of the following:

[0334] 1) DCI signaling;

[0335] 2) MAC-CE signaling;

[0336] 3)RRC signaling.

[0337] In some embodiments, RNTI scrambling is set in the DCI signaling, and the RNTI is used to indicate activation or deactivation of SSB transmission.

[0338] Case 3: When the number of SSB transmissions in the first signaling is reached, the network-side device changes the current SSB transmission state.

[0339] Case 4: The network side device starts timing from activating the SSB transmission, for example, by using a timer T, and changes the current SSB transmission state when the first time in the first signaling passes.

[0340] In some embodiments, the implementation of changing the current SSB transmission state may include:

[0341] <1> Stop SSB transmission;

[0342] or,

[0343] <2> When the current SSB transmission state is SSB transmission through first parameters, switch to SSB transmission through at least one set of second parameters; wherein the at least one set of second parameters is different from the first parameters.

[0344] In some embodiments, the implementation of stopping SSB transmission may include:

[0345] 1) When the first signaling includes the SSB configuration index, stop transmitting a first SSB; wherein the first SSB is the SSB corresponding to the SSB configuration index;

[0346] 2) When the first signaling does not include the SSB configuration index, stop transmitting the second SSB; wherein the second SSB is the SSB corresponding to the SSB parameters configured for the SCell by the high-level signaling.

[0347] In some embodiments, the switching to SSB transmission using at least one set of second parameters may include:

[0348] 1) When the first signaling includes the SSB configuration index, switching the SSB transmission of a first SSB using the first parameter to the SSB transmission using the at least one set of second parameters; wherein the first SSB is the SSB corresponding to the SSB configuration index;

[0349] 2) When the SSB configuration index is not included in the first signaling, the second SSB is switched from SSB transmission through the first parameter to SSB transmission through at least one set of second parameters; wherein the second SSB is the SSB corresponding to the SSB parameter configured for the SCell by the high-level signaling.

[0350] The following example illustrates the SSB transmission method provided by the embodiment of the present disclosure.

[0351] The SSB transmission method proposed in the present disclosure can be understood as an on-demand SSB transmission mechanism that supports multiple types of on-demand SSB transmission. For the transmission mechanism of sending SSB on demand, in addition to defining the start time, the end time also needs to be defined. For determining the end time, the present disclosure provides a method of using an implicit method to determine it by associating it with an event, thereby saving the transmission of deactivation signaling and saving signaling overhead. Specifically, the present disclosure introduces multiple events according to different scenarios, and introduces event indications in the activation signaling to ensure that the terminal and the base station have the same understanding of the end time. For determining the end time, the present disclosure provides another method of using an explicit method to send deactivation signaling. Because this signaling contains simultaneous indications of multiple SCells, in general scenarios, only the SSBs on some SCells will be deactivated, while the SSBs on other SCells will not be deactivated. To achieve this purpose, the present disclosure introduces an SSB state value field in the deactivation signaling. Its different values ​​indicate whether the SSB on each SCell maintains the existing state or changes the existing state, thereby realizing the deactivation of SSBs on some SCells.

[0352] (1) Example 1;

[0353] Assume that the base station needs to activate an SCell for the terminal based on the current downlink service transmission requirements. In some embodiments, the base station will activate all inactive SCells for the terminal. In the NR protocol, the terminal's SCell and PCell are numbered using the serving cell index (ServingCell_Index) and configured for the UE. In the disclosed embodiments, it is assumed that two SCells are activated for the terminal, denoted as ServingCell_index1 and ServingCell_index2.

[0354] Assume that the system predefines two on-demand SSB transmission types:

[0355] Type 1: The base station starts transmitting SSB from trigger time A and stops SSB transmission at time B.

[0356] Type 2: The base station transmits SSB with a period of T1 from trigger time A until it starts transmitting SSB with a period of T2 at time B.

[0357] In some embodiments, the base station assumes that each SCell supports the above two SSB transmission types.

[0358] In addition, the base station configures type 1 SSB parameters for ServingCell_index1 through RRC signaling, which may include one or more of the following:

[0359] 1) The number and position of SSBs in an SSB burst (which can be indicated using a bitmap);

[0360] 2) SSB period or SSB burst interval;

[0361] 3)SSB subcarrier spacing;

[0362] 4)SSB power;

[0363] 5)SSB start time.

[0364] The base station configures type 2 SSB parameters for ServingCell_index1, which can include one or more of the following:

[0365] 1) The number and position of SSBs in an SSB burst (can be indicated using a bitmap);

[0366] 2) SSB period or SSB burst interval T1, SSB period or burst interval T2;

[0367] 3)SSB subcarrier spacing;

[0368] 4)SSB power;

[0369] 5)SSB start time.

[0370] In some embodiments, the base station may also configure type 1 SSB parameters and type 2 SSB parameters for ServingCell_index2 respectively.

[0371] In some embodiments, the base station sends a first signaling to the terminal. In some embodiments, the first signaling is as follows:

[0372] Among them, the SSB status value of 1 indicates that the SSB transmission is triggered; if the status value is 0, it indicates maintaining the current state, that is: if there is currently on-demand SSB transmission, the transmission continues; if there is currently no on-demand SSB transmission, the on-demand SSB transmission is still not performed and the new SSB transmission is not triggered.

[0373] According to the above-mentioned first signaling indication, the base station triggers SSB transmission of type 1 at ServingCell_index1 and triggers SSB transmission of type 2 at ServingCell_index2.

[0374] In some embodiments, the system predefines the following first events:

[0375] <1> The base station sends SCell activation signaling;

[0376] <2> The base station sends SCell deactivation signaling;

[0377] <3> The base station sends CSI-RS activation / configuration signaling, and CSI-RS transmission is used by the terminal to report CSI;

[0378] <4> The base station sends TCI state activation signaling;

[0379] <5> The terminal reports a valid CSI;

[0380] <6> The terminal reports layer 1 RSRP or layer 3 RSRP.

[0381] In some embodiments, the system predefined time B is determined based on a valid CSI reported by the terminal.

[0382] Figure 3 is one of the transmission schematic diagrams of type 1 on-demand SSB on ServingCell_index1 in the SSB transmission method provided by an embodiment of the present disclosure. As shown in Figure 3, the transmission process of on-demand SSB on ServingCell_index1 in this scenario is given.

[0383] Before the first signaling (also known as the on-demand SSB activation signaling in the figure) is sent, no SSB transmission occurs. After the base station sends the first signaling, SSB transmission begins. The terminal performs Layer 1 measurement based on this SSB and reports the Layer 1 RSRP (also known as L1 RSRP). This measurement process converts an unknown SCell into a known SCell, effectively reducing subsequent SCell activation latency. The base station then sends SCell activation signaling and, based on the Layer 1 RSRP reported by the terminal, determines the TCI state for CSI-RS / PDSCH (Physical Downlink Shared Channel) / PDCCH (Physical Downlink Control Channel) transmission. This state is communicated to the terminal via TCI state activation signaling. Based on the TCI state indicated by the base station, the terminal measures the corresponding SSB for synchronization. It also measures the CSI-RS sent by the base station and provides feedback on the CSI, including the Channel Quality Indicator (CQI). This CSI is used for SCell data scheduling. The SCell activation process is now complete. According to the system's predefined rules, upon receiving this CSI report, the base station stops transmitting the on-demand SSB. The on-demand SSB here refers to the SSB corresponding to the SSB parameters configured using the above RRC signaling. The following embodiments are similar and will not be described in detail.

[0384] Figure 4 is one of the transmission schematic diagrams of type 2 on-demand SSB on ServingCell_index2 in the SSB transmission method provided by an embodiment of the present disclosure. As shown in Figure 4, the transmission process of on-demand SSB on ServingCell_index2 in this scenario is given.

[0385] Before the first signaling (also known as the on-demand SSB activation signaling in the figure) is sent, no SSBs are transmitted. After sending the first signaling, the base station begins transmitting SSBs with a T1 period. T1 can use a smaller value to reduce SCell activation latency. The terminal performs Layer 1 measurements based on these SSBs and reports the Layer 1 RSRP. The base station then sends SCell activation signaling and, based on the Layer 1 RSRP reported by the terminal, determines the TCI state for CSI-RS / PDSCH / PDCCH transmission. This is communicated to the terminal via TCI state activation signaling. Based on the TCI state indicated by the base station, the terminal measures the corresponding SSBs to achieve synchronization. It also measures the CSI-RS transmitted by the base station and provides CSI feedback, including the CQI. This CSI is used for SCell data scheduling. The SCell activation process is now complete. According to system predefined rules, upon receiving this CSI report, the base station switches to transmitting SSBs with a T2 period. T2 can use a larger value to maintain synchronization accuracy during data transmission.

[0386] (2) Example 2;

[0387] Assume that the base station needs to activate an SCell for the terminal based on the current downlink service transmission requirements. In some embodiments, the base station will activate all inactive SCells for the terminal. In the NR protocol, the terminal's SCell and PCell are numbered together using ServingCell_Index and configured for the UE. In the disclosed embodiments, it is assumed that two SCells are activated for the terminal, represented by ServingCell_index1 and ServingCell_index2.

[0388] In addition, assuming that ServingCell_index3 is an activated SCell, the base station also activates on-demand SSB transmission on this SCell to maintain downlink synchronization.

[0389] Assume that the system predefines two on-demand SSB transmission types:

[0390] Type 1: The base station starts transmitting SSB from trigger time A and stops SSB transmission at time B.

[0391] Type 2: The base station transmits SSB with a period of T1 from trigger time A until it starts transmitting SSB with a period of T2 at time B.

[0392] In some embodiments, the base station assumes that each SCell supports the above two SSB transmission types.

[0393] In addition, the base station configures type 1 SSB parameters for ServingCell_index1 through RRC signaling, which may include one or more of the following:

[0394] 1) The number and position of SSBs in an SSB burst (which can be indicated using a bitmap);

[0395] 2) SSB period or SSB burst interval;

[0396] 3)SSB subcarrier spacing;

[0397] 4)SSB power;

[0398] 5)SSB start time.

[0399] The base station configures type 2 SSB parameters for ServingCell_index1, which can include one or more of the following:

[0400] 1) The number and position of SSBs in an SSB burst (can be indicated using a bitmap);

[0401] 2) SSB period or SSB burst interval T1, SSB period or burst interval T2;

[0402] 3)SSB subcarrier spacing;

[0403] 4)SSB power;

[0404] 5)SSB start time.

[0405] In some embodiments, the base station may also configure type 1 SSB parameters and type 2 SSB parameters for ServingCell_index2, and configure type 1 SSB parameters and type 2 SSB parameters for ServingCell_index3.

[0406] In some embodiments, the system predefines the following first events, defined as Event 1 to Event 6:

[0407] <1> Event 1: The base station sends SCell activation signaling;

[0408] <2> Event 2: The base station sends SCell deactivation signaling;

[0409] <3> Event 3: The base station sends CSI-RS activation / configuration signaling, and CSI-RS transmission is used by the terminal to report CSI;

[0410] <4> Event 4: The base station sends TCI state activation signaling;

[0411] <5> Event 5: The terminal reports a valid CSI;

[0412] <6> Event 6: The terminal reports layer 1 RSRP or layer 3 RSRP.

[0413] Among them, the CSI-RS configuration signaling in event 3 refers to the base station using RRC signaling to configure the periodic CSI-RS and / or corresponding TCI state for the terminal; CSI-RS activation signaling refers to the base station activating the transmission of semi-persistent CSI-RS.

[0414] It should be noted that, unlike the predefined method in the above embodiment 1, the determination of time B in the embodiment of the present disclosure is indicated by the first signaling. For example, the base station sends the first signaling to the terminal, and the first signaling is as follows:

[0415] According to this first signaling, type 1 SSB transmission is triggered at ServingCell_index1 and ServingCell_index3, and type 2 SSB transmission is triggered at ServingCell_index2.

[0416] FIG5 is a second schematic diagram of transmission of type 1 on-demand SSB on ServingCell_index1 in the SSB transmission method provided by an embodiment of the present disclosure. As shown in FIG5 , the transmission process of on-demand SSB on ServingCell_index1 in this scenario is given.

[0417] Assume that this SCell consistently transmits long-period SSBs. After the base station sends the first signaling (also known as the on-demand SSB activation signaling in the figure), it begins on-demand SSB transmission, which has a short period. The terminal performs Layer 1 measurement based on this on-demand SSB, quickly obtaining measurement results and reporting the Layer 1 RSRP (also known as L1 RSRP). This measurement process converts an unknown SCell into a known SCell, effectively reducing subsequent SCell activation latency. Based on the indication in the first signaling (Event 6: Terminal reports Layer 1 RSRP or Layer 3 RSRP), the base station stops on-demand SSB transmission upon receiving this Layer 1 RSRP report. During this process, on-demand SSBs are used only for Layer 1 measurements. The base station then sends SCell activation signaling and, based on the Layer 1 RSRP reported by the terminal, determines the TCI state for CSI-RS / PDSCH / PDCCH transmission and indicates this to the terminal through TCI state activation signaling. Based on the TCI status indicated by the base station, the terminal measures the long-period SSBs that are always present on the corresponding SCell to achieve synchronization. It also measures the CSI-RS transmitted by the base station and provides feedback on the CSI, including the CQI. This CSI is used for data scheduling in the SCell. This completes the SCell activation process.

[0418] Figure 6 is the second transmission diagram of type 2 on-demand SSB on ServingCell_index2 in the SSB transmission method provided by an embodiment of the present disclosure. As shown in Figure 6, the transmission process of on-demand SSB on ServingCell_index2 in this scenario is given.

[0419] Before the first signaling (also known as the on-demand SSB activation signaling in the figure) is sent, no SSBs are transmitted. After sending the first signaling, the base station begins transmitting SSBs with a T1 periodicity. T1 can use a smaller value to reduce SCell activation latency. The terminal performs Layer 1 measurements based on these SSBs and reports the Layer 1 RSRP. After the base station sends the SCell activation signaling, according to the instructions in the first signaling (Event 1: the base station sends the SCell activation signaling), the base station switches to transmitting SSBs with a T2 periodicity. The base station then determines the TCI state for CSI-RS / PDSCH / PDCCH transmission based on the Layer 1 RSRP reported by the terminal and indicates this to the terminal via TCI state activation signaling. Based on the TCI state indicated by the base station, the terminal measures the SSBs transmitted with a T2 periodicity to achieve synchronization. It also measures the CSI-RS transmitted by the base station and provides feedback on the CSI, including the CQI. This CSI is used for SCell data scheduling. The SCell activation process is now complete.

[0420] Figure 7 is a transmission diagram of type 1 on-demand SSB on ServingCell_index3 in the SSB transmission method provided by an embodiment of the present disclosure. As shown in Figure 7, the transmission process of on-demand SSB on ServingCell_index3 in this scenario is given.

[0421] There are no SSBs being continuously transmitted on this SCell, and activation has already been completed before the first signaling (i.e., the on-demand SSB activation signaling in the figure) is sent. The base station begins SSB transmission after sending the first signaling. The terminal performs downlink synchronization based on this SSB to maintain reliable data transmission. After data transmission is complete, the base station sends SCell deactivation signaling. Based on the instructions in the first signaling (Event 2: The base station sends SCell deactivation signaling), the base station also stops transmitting on-demand SSBs.

[0422] (3) Example 3;

[0423] Assume that the base station needs to activate an SCell for the terminal based on the current downlink service transmission requirements. In some embodiments, the base station will activate all inactive SCells for the terminal. In the NR protocol, the terminal's SCell and PCell are numbered together using ServingCell_Index and configured for the UE. In the disclosed embodiments, it is assumed that two SCells are activated for the terminal, represented by ServingCell_index1 and ServingCell_index2.

[0424] Assume that the system predefines two on-demand SSB transmission types:

[0425] Type 1: The base station starts transmitting SSB from trigger time A and stops SSB transmission at time B.

[0426] Type 2: The base station transmits SSB with a period of T1 from trigger time A until it starts transmitting SSB with a period of T2 at time B.

[0427] In some embodiments, the base station assumes that each SCell supports the above two SSB transmission types.

[0428] In addition, the base station configures type 1 SSB parameters for ServingCell_index1 through RRC signaling, which may include one or more of the following:

[0429] 1) The number and position of SSBs in an SSB burst (which can be indicated using a bitmap);

[0430] 2) SSB period or SSB burst interval;

[0431] 3)SSB subcarrier spacing;

[0432] 4)SSB power;

[0433] 5)SSB start time.

[0434] The base station configures type 2 SSB parameters for ServingCell_index1, which can include one or more of the following:

[0435] 1) The number and position of SSBs in an SSB burst (can be indicated using a bitmap);

[0436] 2) SSB period or SSB burst interval T1, SSB period or burst interval T2;

[0437] 3)SSB subcarrier spacing;

[0438] 4)SSB power;

[0439] 5)SSB start time.

[0440] In some embodiments, the base station may also configure type 1 SSB parameters and type 2 SSB parameters for ServingCell_index2 respectively.

[0441] In some embodiments, the system predefines the following first events, defined as Event 1 to Event 6:

[0442] <1> Event 1: The base station sends SCell activation signaling;

[0443] <2> Event 2: The base station sends SCell deactivation signaling;

[0444] <3> Event 3: The base station sends CSI-RS activation / configuration signaling, and CSI-RS transmission is used by the terminal to report CSI;

[0445] <4> Event 4: The base station sends TCI state activation signaling;

[0446] <5> Event 5: The terminal reports a valid CSI;

[0447] <6> Event 6: The terminal reports layer 1 RSRP or layer 3 RSRP.

[0448] In the embodiment of the present disclosure, the determination of time B is indicated by a first signaling. For example, the base station sends a first signaling to the terminal, and the first signaling is as follows:

[0449] It should be noted that this embodiment differs from Embodiments 1 and 2 in that it also includes an SCell activation flag (i.e., an SCell activation indication field). A value of 1 indicates that both on-demand SSB and SCell are activated; a value of 0 indicates that SCell is not activated. Therefore, the first signaling can simultaneously activate on-demand SSB transmission and SCell activation. This signaling that supports both SCell activation and on-demand SSB activation saves signaling overhead and avoids multiple indications.

[0450] FIG8 is the third transmission diagram of type 1 on-demand SSB on ServingCell_index1 in the SSB transmission method provided by an embodiment of the present disclosure. As shown in FIG8 , the transmission process of on-demand SSB on ServingCell_index1 in this scenario is given.

[0451] Before the first signaling is sent, there is no SSB transmission. After the base station sends the first signaling, it starts SSB transmission and activates the SCell at the same time. The terminal performs automatic gain control (AGC) based on this SSB, synchronizes, and completes layer 1 measurement to report layer 1 RSRP. The base station determines the TCI state for CSI-RS / PDSCH / PDCCH transmission based on the layer 1 RSRP reported by the terminal, and indicates it to the terminal through TCI state activation signaling. The base station further activates the transmission of semi-persistent CSI-RS. The terminal measures the CSI-RS sent by the base station and feeds back CSI, including CQI. This CSI is used for data scheduling in the SCell. At this point, the SCell activation process is completed. After the uplink and downlink data transmission is completed, the base station sends SCell deactivation signaling. At this time, according to the instruction of the first signaling (event 2: the base station sends SCell deactivation signaling), the base station also stops the transmission of on-demand SSB.

[0452] Figure 9 is the third transmission diagram of type 2 on-demand SSB on ServingCell_index2 in the SSB transmission method provided by an embodiment of the present disclosure. As shown in Figure 9, the transmission process of on-demand SSB on ServingCell_index2 in this scenario is given.

[0453] Before the first signaling is sent, there is no SSB transmission. After sending the first signaling, the base station starts to transmit SSB with a T1 period and activates the Scell ​​at the same time. T1 can use a smaller value to reduce the SCell activation delay. The terminal performs AGC and synchronization based on this SSB, and completes layer 1 measurement to report layer 1 RSRP. The base station determines the TCI state for CSI-RS / PDSCH / PDCCH transmission based on the layer 1 RSRP reported by the terminal, and indicates it to the terminal through TCI state activation signaling. The base station further activates the transmission of semi-persistent CSI-RS. According to the instruction of the first signaling (event 3: the base station sends CSI-RS activation / configuration signaling), the base station then switches to T2 periodicity for SSB transmission. T2 can use a larger value to maintain synchronization accuracy during data transmission. The terminal measures the CSI-RS sent by the base station and feeds back CSI, including CQI. This CSI is used for data scheduling in the SCell. At this point, the SCell activation process is complete.

[0454] (IV) Example 4;

[0455] In this embodiment, it is assumed that on-demand SSB transmission of two SCells is activated for the terminal, which are represented by ServingCell_index1 and ServingCell_index2.

[0456] Assume that the system predefines an on-demand SSB transmission mode, in which the base station starts transmitting SSB from trigger time A and stops SSB transmission at time B. Time A is determined by the base station sending a first signaling (on-demand SSB activation signaling), and time B is determined by the base station sending a second signaling (on-demand SSB deactivation signaling).

[0457] In some embodiments, the base station configures N1=2 sets of SSB parameters for ServingCell_index1 through RRC signaling. Each set of SSB parameters may include one or more of the following:

[0458] 1) The number and position of SSBs in an SSB burst (indicated by a bitmap);

[0459] 2) SSB period or SSB burst interval;

[0460] 3)SSB subcarrier spacing;

[0461] 4)SSB power;

[0462] 5)SSB start time.

[0463] In some embodiments, the base station also configures N2=2 sets of SSB parameters for ServingCell_index2.

[0464] In some embodiments, the base station sends a first signaling to the terminal. In some embodiments, the first signaling is as follows:

[0465] Among them, the SSB status value of 1 indicates that the SSB transmission is triggered; if the status value is 0, it indicates maintaining the current state. If there is currently an on-demand SSB transmission, the transmission will continue; if there is currently no on-demand SSB transmission, the on-demand SSB transmission will still not be performed and no new SSB transmission will be triggered.

[0466] The SSB configuration index field indicates which set of SSB parameters the corresponding SCell uses. In the first signaling described above, ServingCell_index1 is instructed to use the first set of N1 sets of SSB parameters, and ServingCell_index2 is instructed to use the second set of N2 sets of SSB parameters.

[0467] The SSB activation / deactivation indication information (ie, the SSB activation / deactivation indication field) is used to indicate the purpose of this first signaling. The specific value is 1, indicating that this signaling is used for SSB activation; the value is 0, indicating that this signaling is used for SSB deactivation.

[0468] According to the instruction of the first signaling, the base station triggers on-demand SSB transmission at ServingCell_index1 and uses the first set of SSB parameters. The base station triggers on-demand SSB transmission at ServingCell_index2 and uses the second set of SSB parameters.

[0469] The above-mentioned on-demand SSB continues to be transmitted until the base station sends the following second signaling and stops transmission:

[0470] Among them, the SSB activation / deactivation indication information takes a value of 0, indicating that this signaling is used for SSB deactivation. Then, the SSB status value of ServingCell_index1 takes a value of 1, indicating that the on-demand SSB on ServingCell_index1 is deactivated, so its on-demand SSB transmission stops. The SSB status value of ServingCell_index2 takes a value of 0, indicating that the on-demand SSB transmitted on it remains unchanged. That is, the on-demand SSB on ServingCell_index2 continues to be transmitted without stopping.

[0471] In the above embodiment, the SSB activation / deactivation indication field is configured as one indication field per signaling. Another approach is to configure an SSB activation / deactivation indication field per SCell. For example, the following signaling structure:

[0472] The above signaling indicates that the on-demand SSB on ServingCell_index1 is deactivated and transmission is stopped, while the on-demand SSB transmission on ServingCell_index2 is activated at the same time.

[0473] In this embodiment, the signaling explicitly includes an SSB activation / deactivation indication field, which is applicable to both MAC-CE signaling and DCI signaling.

[0474] In some embodiments, the signaling may not include an SSB activation / deactivation indication field, and different RNTIs may be used to scramble the signaling, corresponding to SSB activation or SSB deactivation. For example, for DCI signaling, when scrambling with RNTI1, it indicates that the signaling is for SSB activation; and when scrambling with RNTI2, it indicates that the signaling is for SSB deactivation.

[0475] In this embodiment, multiple sets of SSB parameters are configured for each SCell, and the SSB configuration index is used to indicate which set is used. This is also applicable to embodiments 1 to 3. In addition, if only one set of SSB parameters is configured for the SCell, the SSB configuration index field is not included in the signaling.

[0476] (V) Example 5;

[0477] In this embodiment, it is assumed that on-demand SSB transmission of two SCells is activated for the terminal, which are represented by ServingCell_index1 and ServingCell_index2.

[0478] Assume that the system predefines an on-demand SSB transmission mode, in which the base station transmits SSBs with a period T1 starting from trigger time A and continuing to transmit SSBs with a period T2 starting from time B. Time A is determined by the base station sending a first signaling (on-demand SSB activation signaling), and time B is determined by the base station sending a second signaling.

[0479] In some embodiments, the base station configures N1=2 sets of SSB parameters for ServingCell_index1 through RRC signaling. Each set of SSB parameters may include one or more of the following:

[0480] 1) The number and position of SSBs in an SSB burst (can be indicated using a bitmap);

[0481] 2) SSB period or SSB burst interval T1, SSB period or burst interval T2;

[0482] 3)SSB subcarrier spacing;

[0483] 4)SSB power;

[0484] 5)SSB start time.

[0485] In some embodiments, the base station also configures N2=2 sets of SSB parameters for ServingCell_index2.

[0486] The base station sends a first signaling to the terminal. In some embodiments, the first signaling is as follows:

[0487] Among them, the periodic switching indication information (ie, the periodic switching domain) indicates the purpose of this first signaling. A value of 1 indicates that this first signaling is used for the periodic change of SSB; a value of 0 indicates that this first signaling is used for the activation of SSB.

[0488] The SSB status value is 1, which indicates that the SSB transmission is triggered or the SSB cycle is changed; if the status value is 0, it indicates that the current state is maintained, and no new SSB transmission is triggered or the SSB cycle is not changed.

[0489] The SSB configuration index field indicates which set of SSB parameters the corresponding SCell uses. In the above first signaling, ServingCell_index1 uses the first set of N1 sets of SSB parameters; ServingCell_index2 uses the second set of N2 sets of SSB parameters.

[0490] According to the first signaling instruction, the first signaling is used to activate on-demand SSB. The base station triggers on-demand SSB transmission at ServingCell_index1 and uses the first set of SSB parameters and transmits at T1. The base station triggers on-demand SSB transmission at ServingCell_index2 and uses the second set of SSB parameters and transmits at T1.

[0491] The base station sends a second signaling to the terminal. The second signaling is as follows:

[0492] Among them, the cycle switching indication information takes a value of 1, indicating that this signaling is used to change the SSB cycle. If the SSB status value of ServingCell_index1 is 1, it means that the cycle of the on-demand SSB on ServingCell_index1 is changed, and it begins to use cycle T2 for SSB transmission. The SSB status value of ServingCell_index2 is 0, indicating that the on-demand SSB transmitted on it remains unchanged. That is, the on-demand SSB on ServingCell_index2 continues to use cycle T1 for SSB transmission.

[0493] (VI) Example 6;

[0494] Moment B in Examples 1 to 4 may also be explicitly indicated in the first signaling, or configured for each SCell through RRC signaling, may be indicated by the number of SSB transmissions N, or may be indicated by timer T, where timer T may be indicated by the first signaling or predefined.

[0495] For example, the number of transmissions N here means that after N SSB bursts are transmitted starting from time A, SSB transmission is stopped. The timer T means that after time T has passed since time A, SSB transmission is stopped.

[0496] In some embodiments, some of the SSB parameters in embodiments 1 to 4 may also be explicitly indicated in the first signaling, such as the SSB burst set period.

[0497] It should be noted that the different methods in Examples 1 to 6 can be combined with each other and will not be described in detail in this disclosure.

[0498] In an embodiment of the present disclosure, an on-demand SSB transmission mechanism is provided. By dynamically activating or deactivating SSB transmission, SSB transmission is turned on or off based on service and channel conditions, achieving energy conservation for base stations and terminals. The present disclosure also implicitly or explicitly determines the on-demand SSB deactivation time or the on-demand SSB parameter switching time. Furthermore, SSB type indication information is introduced to support multiple on-demand SSB transmission types.

[0499] FIG10 is a schematic diagram of the structure of a terminal provided by an embodiment of the present disclosure. As shown in FIG10 , the terminal includes a memory 1020, a transceiver 1000, and a processor 1010, wherein:

[0500] The memory 1020 is used to store computer programs; the transceiver 1000 is used to send and receive data under the control of the processor 1010; the processor 1010 is used to read the computer program in the memory 1020 and perform the following operations:

[0501] Receive a first signaling from a network-side device; wherein the first signaling is used to indicate at least one of activating SSB transmission and deactivating SSB transmission;

[0502] SSB transmission is performed based on the first signaling.

[0503] Specifically, the transceiver 1000 is configured to receive and send data under the control of the processor 1010 .

[0504] In FIG10 , the bus architecture may include any number of interconnected buses and bridges, specifically linking together various circuits of one or more processors represented by processor 1010 and memory represented by memory 1020. The bus architecture may also link together various other circuits such as peripheral devices, voltage regulators, and power management circuits, which are well known in the art and are therefore not further described herein. The bus interface provides an interface. The transceiver 1000 may be a plurality of components, including a transmitter and a receiver, providing a unit for communicating with various other devices over a transmission medium, such as a wireless channel, a wired channel, an optical cable, and the like. For different user devices, the user interface 1030 may also be an interface capable of connecting to required external or internal devices, including but not limited to a keypad, a display, a speaker, a microphone, a joystick, and the like.

[0505] The processor 1010 is responsible for managing the bus architecture and general processing, and the memory 1020 can store data used by the processor 1010 when performing operations.

[0506] Optionally, the processor 1010 may be a central processing unit (CPU), an application specific integrated circuit (ASIC), a field programmable gate array (FPGA) or a complex programmable logic device (CPLD), and the processor may also adopt a multi-core architecture.

[0507] The processor calls the computer program stored in the memory to execute any of the methods provided by the embodiments of the present disclosure according to the obtained executable instructions. The processor and the memory can also be arranged physically separately.

[0508] It should be noted here that the above-mentioned terminal provided in the embodiment of the present invention can implement all the method steps implemented by the above-mentioned method embodiment in which the execution subject is the terminal, and can achieve the same technical effect. The parts and beneficial effects of this embodiment that are the same as those of the method embodiment will not be described in detail here.

[0509] FIG11 is a schematic diagram of the structure of a network-side device provided in an embodiment of the present disclosure. As shown in FIG11 , the network-side device includes a memory 1120, a transceiver 1100, and a processor 1110, wherein:

[0510] The memory 1120 is used to store computer programs; the transceiver 1100 is used to send and receive data under the control of the processor 1110; the processor 1110 is used to read the computer program in the memory 1120 and perform the following operations:

[0511] Send a first signaling to the terminal; wherein the first signaling is used to indicate at least one of activating SSB transmission and deactivating SSB transmission.

[0512] In FIG11 , the bus architecture may include any number of interconnected buses and bridges, specifically various circuits linked together by one or more processors represented by processor 1110 and memory represented by memory 1120. The bus architecture may also link together various other circuits such as peripheral devices, voltage regulators, and power management circuits, which are well known in the art and are therefore not further described herein. The bus interface provides an interface. The transceiver 1100 may be a plurality of components, namely, a transmitter and a receiver, providing a unit for communicating with various other devices over a transmission medium, such as a wireless channel, a wired channel, an optical cable, and the like. The processor 1110 is responsible for managing the bus architecture and general processing, and the memory 1120 may store data used by the processor 1110 when performing operations.

[0513] The processor 1110 may be a CPU, an ASIC, an FPGA, or a CPLD, and the processor may also adopt a multi-core architecture.

[0514] It should be noted here that the above-mentioned network side device provided in the embodiment of the present disclosure can implement all the method steps implemented by the method embodiment in which the execution subject is the network side device, and can achieve the same technical effect. The parts and beneficial effects of this embodiment that are the same as the method embodiment will not be described in detail here.

[0515] It should be noted that the division of units in the embodiments of the present disclosure is schematic and is merely a logical functional division. In actual implementation, other division methods may be used. Furthermore, the functional units in the various embodiments of the present disclosure may be integrated into a single processing unit, or each unit may exist physically separately, or two or more units may be integrated into a single unit. The aforementioned integrated units may be implemented in the form of hardware or software functional units.

[0516] If the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a processor-readable storage medium. Based on this understanding, the technical solution of the present disclosure is essentially or the part that contributes to the relevant technology or all or part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including a number of instructions for enabling a computer device (which can be a personal computer, a server, or a network device, etc.) or a processor to execute all or part of the steps of the method described in each embodiment of the present disclosure. The aforementioned storage medium includes: various media that can store program codes, such as a USB flash drive, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk.

[0517] The present disclosure also provides an SSB transmission device, the execution subject of which may be a terminal, such as a mobile phone. FIG12 is a structural diagram of the SSB transmission device provided by the present disclosure. As shown in FIG12 , the SSB transmission device includes:

[0518] The receiving unit 1201 is configured to receive a first signaling from a network-side device; wherein the first signaling is used to indicate at least one of activating SSB transmission and deactivating SSB transmission;

[0519] The SSB transmission unit 1202 is configured to perform SSB transmission based on the first signaling.

[0520] In some embodiments, the first signaling may include at least one of the following:

[0521] 1) Serving cell index;

[0522] 2) SSB activation indication information, used to indicate activation of SSB transmission;

[0523] 3) SSB deactivation indication information, used to indicate deactivation of SSB transmission;

[0524] 4)SSB configuration index;

[0525] 5) SSB type indication information, used to indicate the type of SSB transmission;

[0526] 6) SSB deactivation type indication information, used to indicate the conditions for deactivating SSB transmission;

[0527] 7) Number of SSB transmissions;

[0528] 8) First time;

[0529] 9) Cycle switching indication information, used to indicate whether to change the SSB transmission cycle;

[0530] 10) SSB status value, used to indicate whether to change the current SSB transmission status;

[0531] 11) SCell activation flag;

[0532] 12) SCell deactivation flag.

[0533] In some embodiments, the receiving unit 1201 is further used to: receive SSB type indication information from the network side device.

[0534] In some embodiments, the SSB type indication information may include at least one of the following:

[0535] <1> The number and position of SSBs in an SSB burst;

[0536] <2> At least one SSB period or SSB burst set interval;

[0537] <3> SSB subcarrier spacing;

[0538] <4> SSB power;

[0539] <5> SSB start time.

[0540] In some embodiments, the SSB transmission device further includes: a first processing unit configured to:

[0541] 1) When the first event occurs, change the current SSB transmission state;

[0542] or,

[0543] 2) upon receiving a second signaling from the network-side device, changing the current SSB transmission state;

[0544] or,

[0545] 3) when the number of SSB transmissions in the first signaling is reached, changing the current SSB transmission state;

[0546] or,

[0547] 4) Starting from the activation of SSB transmission, when the first time in the first signaling passes, changing the current SSB transmission state.

[0548] In some embodiments, the first processing unit is specifically configured to:

[0549] <1> Stop SSB transmission;

[0550] or,

[0551] <2> When the current SSB transmission state is SSB transmission through first parameters, switch to SSB transmission through at least one set of second parameters; wherein the at least one set of second parameters is different from the first parameters.

[0552] In some embodiments, the first processing unit is further configured to:

[0553] 1) When the first signaling includes the SSB configuration index, stop transmitting a first SSB; wherein the first SSB is the SSB corresponding to the SSB configuration index;

[0554] 2) When the first signaling does not include the SSB configuration index, stop transmitting the second SSB; wherein the second SSB is the SSB corresponding to the SSB parameters configured for the SCell by the high-level signaling.

[0555] In some embodiments, the first processing unit is further configured to:

[0556] 1) When the first signaling includes the SSB configuration index, switching the SSB transmission of a first SSB using the first parameter to the SSB transmission using the at least one set of second parameters; wherein the first SSB is the SSB corresponding to the SSB configuration index;

[0557] 2) When the SSB configuration index is not included in the first signaling, the second SSB is switched from SSB transmission through the first parameter to SSB transmission through at least one set of second parameters; wherein the second SSB is the SSB corresponding to the SSB parameter configured for the SCell by the high-level signaling.

[0558] In some embodiments, the first event may include at least one of the following:

[0559] 1> Receive SCell activation signaling sent by the network side device;

[0560] 2> Receive SCell deactivation signaling sent by the network side device;

[0561] 3> receiving CSI-RS activation signaling sent by the network side device, where the CSI-RS activation signaling is used by the terminal to report CSI;

[0562] 4> receiving CSI-RS configuration signaling sent by the network side device, where the CSI-RS configuration signaling is used by the terminal to report CSI;

[0563] 5> Receive the TCI state activation signaling sent by the network side device;

[0564] 6> Report at least one valid CSI;

[0565] 7> Report layer 1 RSRP;

[0566] 8> Report layer 3 RSRP.

[0567] In some embodiments, the second signaling may include at least one of the following:

[0568] 1>Serving cell index;

[0569] 2>SSB activation indication information;

[0570] 3>SSB deactivation instruction information;

[0571] 4> Cycle switching indication information;

[0572] 5>SSB status value;

[0573] 6>SCell activation flag;

[0574] 7>SCell deactivation flag.

[0575] In some embodiments, the first signaling and the second signaling may include at least one of the following:

[0576] 1) DCI signaling;

[0577] 2) MAC-CE signaling;

[0578] 3)RRC signaling.

[0579] In some embodiments, RNTI scrambling is set in the DCI signaling, and the RNTI is used to indicate activation or deactivation of SSB transmission.

[0580] The present disclosure also provides an SSB transmission device, the execution subject of which may be a network-side device. FIG13 is a second structural diagram of the SSB transmission device provided by the present disclosure. As shown in FIG13 , the SSB transmission device includes:

[0581] The sending unit 1301 is used to send a first signaling to the terminal; wherein the first signaling is used to indicate at least one of activating SSB transmission and deactivating SSB transmission.

[0582] In some embodiments, the first signaling may include at least one of the following:

[0583] 1) Serving cell index;

[0584] 2) SSB activation indication information, used to indicate activation of SSB transmission;

[0585] 3) SSB deactivation indication information, used to indicate deactivation of SSB transmission;

[0586] 4)SSB configuration index;

[0587] 5) SSB type indication information, used to indicate the type of SSB transmission;

[0588] 6) SSB deactivation type indication information, used to indicate the conditions for deactivating SSB transmission;

[0589] 7) Number of SSB transmissions;

[0590] 8) First time;

[0591] 9) Cycle switching indication information, used to indicate whether to change the SSB transmission cycle;

[0592] 10) SSB status value, used to indicate whether to change the current SSB transmission status;

[0593] 11) SCell activation flag;

[0594] 12) SCell deactivation flag.

[0595] In some embodiments, the sending unit 1301 is further configured to:

[0596] Send SSB type indication information to the terminal.

[0597] In some embodiments, the SSB type indication information may include at least one of the following:

[0598] <1> The number and position of SSBs in an SSB burst;

[0599] <2> At least one SSB period or SSB burst set interval;

[0600] <3> SSB subcarrier spacing;

[0601] <4> SSB power;

[0602] <5> SSB start time.

[0603] In some embodiments, the SSB transmission device further includes: a second processing unit configured to:

[0604] 1) when the second event occurs, changing the current SSB transmission state;

[0605] or,

[0606] 2) sending a second signaling to the terminal, where the second signaling is used to instruct a change in a current SSB transmission state;

[0607] or,

[0608] 3) when the number of SSB transmissions in the first signaling is reached, changing the current SSB transmission state;

[0609] or,

[0610] 4) Starting from the activation of SSB transmission, when the first time in the first signaling passes, changing the current SSB transmission state.

[0611] In some embodiments, the second processing unit is specifically configured to:

[0612] <1> Stop SSB transmission;

[0613] or,

[0614] <2> When the current SSB transmission state is SSB transmission through first parameters, switch to SSB transmission through at least one set of second parameters; wherein the at least one set of second parameters is different from the first parameters.

[0615] In some embodiments, the second processing unit is further configured to:

[0616] 1) When the first signaling includes the SSB configuration index, stop transmitting a first SSB; wherein the first SSB is the SSB corresponding to the SSB configuration index;

[0617] 2) When the first signaling does not include the SSB configuration index, stop transmitting the second SSB; wherein the second SSB is the SSB corresponding to the SSB parameters configured for the SCell by the high-level signaling.

[0618] In some embodiments, the second processing unit is further configured to:

[0619] 1) When the first signaling includes the SSB configuration index, switching the SSB transmission of a first SSB using the first parameter to the SSB transmission using the at least one set of second parameters; wherein the first SSB is the SSB corresponding to the SSB configuration index;

[0620] 2) When the SSB configuration index is not included in the first signaling, the second SSB is switched from SSB transmission through the first parameter to SSB transmission through at least one set of second parameters; wherein the second SSB is the SSB corresponding to the SSB parameter configured for the SCell by the high-level signaling.

[0621] In some embodiments, the second event may include at least one of the following:

[0622] 1>Send SCell activation signaling;

[0623] 2>Send SCell deactivation signaling;

[0624] 3> Send CSI-RS activation signaling, which is used by the terminal to report CSI;

[0625] 4> Send CSI-RS configuration signaling, which is used by the terminal to report CSI;

[0626] 5>Send TCI status activation signaling;

[0627] 6> receiving at least one valid CSI reported by the terminal;

[0628] 7> receiving the layer 1 RSRP reported by the terminal;

[0629] 8> Receive the layer 3 RSRP reported by the terminal.

[0630] In some embodiments, the second signaling may include at least one of the following:

[0631] 1>Serving cell index;

[0632] 2>SSB activation indication information;

[0633] 3>SSB deactivation indication information;

[0634] 4> Cycle switching indication information;

[0635] 5>SSB status value;

[0636] 6>SCell activation flag;

[0637] 7>SCell deactivation flag.

[0638] In some embodiments, the first signaling and the second signaling may include at least one of the following:

[0639] 1) DCI signaling;

[0640] 2) MAC-CE signaling;

[0641] 3)RRC signaling.

[0642] In some embodiments, RNTI scrambling is set in the DCI signaling, and the RNTI is used to indicate activation or deactivation of SSB transmission.

[0643] It should be noted that the division of units in the embodiments of the present disclosure is schematic and is merely a logical functional division. In actual implementation, other division methods may be used. Furthermore, the functional units in the various embodiments of the present disclosure may be integrated into a single processing unit, or each unit may exist physically separately, or two or more units may be integrated into a single unit. The aforementioned integrated units may be implemented in the form of hardware or software functional units.

[0644] If the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a processor-readable storage medium. Based on this understanding, the technical solution of the present disclosure is essentially or the part that contributes to the relevant technology or all or part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including a number of instructions for enabling a computer device (which can be a personal computer, a server, or a network device, etc.) or a processor to execute all or part of the steps of the method described in each embodiment of the present disclosure. The aforementioned storage medium includes: various media that can store program codes, such as a USB flash drive, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk.

[0645] It should be noted here that the above-mentioned device provided by the embodiment of the present invention can implement all the method steps implemented by the above-mentioned method embodiment and can achieve the same technical effect. The parts and beneficial effects that are the same as the method embodiment in this embodiment will not be described in detail here.

[0646] On the other hand, an embodiment of the present disclosure further provides a processor-readable storage medium, wherein the processor-readable storage medium stores a computer program, wherein the computer program is configured to cause the processor to execute the methods provided in the above embodiments, including:

[0647] Receive a first signaling from a network-side device; wherein the first signaling is used to indicate at least one of activating SSB transmission and deactivating SSB transmission;

[0648] Perform SSB transmission based on the first signaling;

[0649] or,

[0650] Send a first signaling to the terminal; wherein the first signaling is used to indicate at least one of activating SSB transmission and deactivating SSB transmission.

[0651] The processor-readable storage medium can be any available medium or data storage device that can be accessed by the processor, including but not limited to magnetic storage (such as floppy disks, hard disks, magnetic tapes, magneto-optical disks (MO)), optical storage (such as CDs, DVDs, BDs, HVDs, etc.), and semiconductor storage (such as ROMs, EPROMs, EEPROMs, non-volatile memories (NAND FLASH), solid-state drives (SSDs)), etc.

[0652] Those skilled in the art will appreciate that the embodiments of the present disclosure may be provided as methods, systems, or computer program products. Therefore, the present disclosure may take the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware. Furthermore, the present disclosure may take the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to magnetic disk storage and optical storage, etc.) containing computer-usable program code.

[0653] The present disclosure is described with reference to the flowcharts and / or block diagrams of the methods, devices (systems), and computer program products according to the embodiments of the present disclosure. It should be understood that each process and / or box in the flowchart and / or block diagram, as well as the combination of the processes and / or boxes in the flowchart and / or block diagram, can be implemented by computer-executable instructions. These computer-executable instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing device to produce a machine, so that the instructions executed by the processor of the computer or other programmable data processing device produce a device for implementing the functions specified in one or more processes in the flowchart and / or one or more boxes in the block diagram.

[0654] These processor-executable instructions may also be stored in a processor-readable memory that can direct a computer or other programmable data processing device to operate in a specific manner, so that the instructions stored in the processor-readable memory produce a product including an instruction device that implements the functions specified in one or more processes in the flowchart and / or one or more boxes in the block diagram.

[0655] These processor-executable instructions may also be loaded onto a computer or other programmable data processing device so that a series of operational steps are executed on the computer or other programmable device to produce a computer-implemented process, whereby the instructions executed on the computer or other programmable device provide steps for implementing the functions specified in one or more processes in the flowchart and / or one or more boxes in the block diagram.

[0656] Obviously, those skilled in the art may make various changes and modifications to the present disclosure without departing from the spirit and scope of the present disclosure. Thus, if these modifications and variations of the present disclosure fall within the scope of the claims of the present disclosure and their equivalents, the present disclosure is intended to include these modifications and variations.

Claims

1. A method for transmitting a synchronization block (SSB), applied to a terminal, the method comprising: Receive a first signaling from a network-side device; wherein the first signaling is used to indicate at least one of activating SSB transmission and deactivating SSB transmission; SSB transmission is performed based on the first signaling.

2. The SSB transmission method according to claim 1, wherein: The first signaling includes at least one of the following: Serving cell index; SSB activation indication information, used to indicate activation of SSB transmission; SSB deactivation indication information is used to indicate deactivation of SSB transmission; SSB configuration index; SSB type indication information, used to indicate the type of SSB transmission; SSB deactivation type indication information is used to indicate the conditions for deactivating SSB transmission; Number of SSB transmissions; First time; Cycle switching indication information, used to indicate whether to change the SSB transmission cycle; SSB status value, used to indicate whether to change the current SSB transmission status; Secondary cell SCell activation flag; SCell deactivation flag.

3. The SSB transmission method according to claim 1, wherein: The method further comprises: Receive SSB type indication information from the network side device.

4. The SSB transmission method according to claim 2 or 3, wherein: The SSB type indication information includes at least one of the following: The number and position of SSBs in an SSB burst; At least one SSB period or SSB burst set interval; SSB subcarrier spacing; SSB power; SSB start time.

5. The SSB transmission method according to claim 1, wherein: The method further comprises: In case the first event occurs, the current SSB transmission state is changed; or, upon receiving a second signaling from the network-side device, changing a current SSB transmission state; or, When the number of SSB transmissions in the first signaling is reached, changing the current SSB transmission state; or, The timing starts from activating the SSB transmission, and when the first time in the first signaling passes, the current SSB transmission state is changed.

6. The SSB transmission method according to claim 5, wherein: Changing the current SSB transmission state includes: Stop SSB transmission; or, When the current SSB transmission state is SSB transmission through first parameters, switch to SSB transmission through at least one set of second parameters; wherein the at least one set of second parameters is different from the first parameters.

7. The SSB transmission method according to claim 6, wherein: The stopping of SSB transmission includes: When the first signaling includes the SSB configuration index, stop transmitting the first SSB; wherein the first SSB is the SSB corresponding to the SSB configuration index; When the SSB configuration index is not included in the first signaling, the transmission of the second SSB is stopped; wherein the second SSB is the SSB corresponding to the SSB parameters configured for the SCell by the high-level signaling.

8. The SSB transmission method according to claim 6, wherein: The switching is to perform SSB transmission using at least one set of second parameters, including: When the first signaling includes the SSB configuration index, switching the SSB transmission of the first SSB using the first parameter to the SSB transmission using the at least one set of second parameters; wherein the first SSB is the SSB corresponding to the SSB configuration index; When the SSB configuration index is not included in the first signaling, the second SSB is switched from SSB transmission through the first parameter to SSB transmission through at least one set of second parameters; wherein, the second SSB is the SSB corresponding to the SSB parameter configured for the SCell by the high-level signaling.

9. The SSB transmission method according to any one of claims 5 to 8, wherein: The first event includes at least one of the following: Receiving SCell activation signaling sent by the network side device; Receiving SCell deactivation signaling sent by the network-side device; receiving a channel state information reference signal CSI-RS activation signaling sent by the network side device, where the CSI-RS activation signaling is used by the terminal to report channel state information CSI; receiving a CSI-RS configuration signaling sent by the network-side device, where the CSI-RS configuration signaling is used by the terminal to report CSI; Receiving a transmission configuration indication TCI state activation signaling sent by the network side device; Report at least one valid CSI; Report layer 1 reference signal received power RSRP; Report layer 3 RSRP.

10. The SSB transmission method according to any one of claims 5 to 8, wherein: The second signaling includes at least one of the following: Serving cell index; SSB activation instruction information; SSB deactivation indication information; Periodic switching indication information; SSB status value; SCell activation flag; SCell deactivation flag.

11. The SSB transmission method according to claim 5, wherein: The first signaling and the second signaling include at least one of the following: Downlink control information DCI signaling; Media Access Control Unit MAC-CE signaling; Radio Resource Control (RRC) signaling.

12. The SSB transmission method according to claim 11, wherein: The DCI signaling is scrambled with a radio network temporary identifier (RNTI), and the RNTI is used to indicate activation or deactivation of SSB transmission.

13. A method for transmitting a synchronization block (SSB), applied to a network-side device, the method comprising: Send a first signaling to the terminal; wherein the first signaling is used to indicate at least one of activating SSB transmission and deactivating SSB transmission.

14. The SSB transmission method according to claim 13, wherein: The first signaling includes at least one of the following: Serving cell index; SSB activation indication information, used to indicate activation of SSB transmission; SSB deactivation indication information is used to indicate deactivation of SSB transmission; SSB configuration index; SSB type indication information, used to indicate the type of SSB transmission; SSB deactivation type indication information is used to indicate the conditions for deactivating SSB transmission; Number of SSB transmissions; First time; Cycle switching indication information, used to indicate whether to change the SSB transmission cycle; SSB status value, used to indicate whether to change the current SSB transmission status; Secondary cell SCell activation flag; SCell deactivation flag.

15. The SSB transmission method according to claim 13, wherein: The method further comprises: Send SSB type indication information to the terminal.

16. The SSB transmission method according to claim 14 or 15, wherein: The SSB type indication information includes at least one of the following: The number and position of SSBs in an SSB burst; At least one SSB period or SSB burst set interval; SSB subcarrier spacing; SSB power; SSB start time.

17. The SSB transmission method according to claim 13, wherein: The method further comprises: In the event of a second event, changing the current SSB transmission state; or, Sending a second signaling to the terminal, where the second signaling is used to instruct a change in a current SSB transmission state; or, When the number of SSB transmissions in the first signaling is reached, changing the current SSB transmission state; or, The timing starts from activating the SSB transmission, and when the first time in the first signaling passes, the current SSB transmission state is changed.

18. The SSB transmission method according to claim 17, wherein: Changing the current SSB transmission state includes: Stop SSB transmission; or, When the current SSB transmission state is SSB transmission through first parameters, switch to SSB transmission through at least one set of second parameters; wherein the at least one set of second parameters is different from the first parameters.

19. The SSB transmission method according to claim 18, wherein: The stopping of SSB transmission includes: When the first signaling includes the SSB configuration index, stop transmitting the first SSB; wherein the first SSB is the SSB corresponding to the SSB configuration index; When the SSB configuration index is not included in the first signaling, the transmission of the second SSB is stopped; wherein the second SSB is the SSB corresponding to the SSB parameters configured for the SCell by the high-level signaling.

20. The SSB transmission method according to claim 18, wherein: The switching is to perform SSB transmission using at least one set of second parameters, including: When the first signaling includes the SSB configuration index, switching the SSB transmission of the first SSB using the first parameter to the SSB transmission using the at least one set of second parameters; wherein the first SSB is the SSB corresponding to the SSB configuration index; When the SSB configuration index is not included in the first signaling, the second SSB is switched from SSB transmission through the first parameter to SSB transmission through at least one set of second parameters; wherein, the second SSB is the SSB corresponding to the SSB parameter configured for the SCell by the high-level signaling.

21. The SSB transmission method according to any one of claims 17 to 20, wherein: The second event includes at least one of the following: Send SCell activation signaling; Send SCell deactivation signaling; Sending a channel state information reference signal CSI-RS activation signaling, where the CSI-RS activation signaling is used by the terminal to report channel state information CSI; Send CSI-RS configuration signaling, where the CSI-RS configuration signaling is used by the terminal to report CSI; Sending transmission configuration indication TCI state activation signaling; receiving at least one valid CSI reported by the terminal; receiving a layer 1 reference signal received power RSRP reported by the terminal; Receive the layer 3 RSRP reported by the terminal.

22. The SSB transmission method according to any one of claims 17 to 20, wherein: The second signaling includes at least one of the following: Serving cell index; SSB activation instruction information; SSB deactivation indication information; Periodic switching indication information; SSB status value; SCell activation flag; SCell deactivation flag.

23. The SSB transmission method according to claim 17, wherein: The first signaling and the second signaling include at least one of the following: Downlink control information DCI signaling; Media Access Control Unit MAC-CE signaling; Radio Resource Control (RRC) signaling.

24. The SSB transmission method according to claim 23, wherein: The DCI signaling is scrambled with a radio network temporary identifier (RNTI), and the RNTI is used to indicate activation or deactivation of SSB transmission.

25. A terminal comprising a memory, a transceiver, and a processor: A memory for storing a computer program; a transceiver for transmitting and receiving data under the control of the processor; and a processor for reading the computer program in the memory and performing the following operations: Receive a first signaling from a network side device; wherein, The first signaling is used to indicate at least one of activation of SSB transmission and deactivation of SSB transmission; SSB transmission is performed based on the first signaling.

26. The terminal according to claim 25, wherein: The first signaling includes at least one of the following: Serving cell index; SSB activation indication information, used to indicate activation of SSB transmission; SSB deactivation indication information is used to indicate deactivation of SSB transmission; SSB configuration index; SSB type indication information, used to indicate the type of SSB transmission; SSB deactivation type indication information is used to indicate the conditions for deactivating SSB transmission; Number of SSB transmissions; First time; Cycle switching indication information, used to indicate whether to change the SSB transmission cycle; SSB status value, used to indicate whether to change the current SSB transmission status; Secondary cell SCell activation flag; SCell deactivation flag. The terminal according to claim 25 , wherein: The operations further include: Receive SSB type indication information from the network side device.

28. The terminal according to claim 26 or 27, wherein: The SSB type indication information includes at least one of the following: The number and position of SSBs in an SSB burst; At least one SSB period or SSB burst set interval; SSB subcarrier spacing; SSB power; SSB start time.

29. The terminal according to claim 25, wherein The operations further include: In case the first event occurs, the current SSB transmission state is changed; or, upon receiving a second signaling from the network-side device, changing a current SSB transmission state; or, When the number of SSB transmissions in the first signaling is reached, changing the current SSB transmission state; or, The timing starts from activating the SSB transmission, and when the first time in the first signaling passes, the current SSB transmission state is changed.

30. The terminal according to claim 29, wherein Changing the current SSB transmission state includes: Stop SSB transmission; or, When the current SSB transmission state is SSB transmission through first parameters, switch to SSB transmission through at least one set of second parameters; wherein the at least one set of second parameters is different from the first parameters.

31. The terminal according to claim 30, wherein: The stopping of SSB transmission includes: When the first signaling includes the SSB configuration index, stop transmitting the first SSB; wherein the first SSB is the SSB corresponding to the SSB configuration index; When the SSB configuration index is not included in the first signaling, the transmission of the second SSB is stopped; wherein the second SSB is the SSB corresponding to the SSB parameters configured for the SCell by the high-level signaling.

32. The terminal according to claim 30, wherein: The switching is to perform SSB transmission using at least one set of second parameters, including: When the first signaling includes the SSB configuration index, switching the SSB transmission of the first SSB using the first parameter to the SSB transmission using the at least one set of second parameters; wherein the first SSB is the SSB corresponding to the SSB configuration index; When the SSB configuration index is not included in the first signaling, the second SSB is switched from SSB transmission through the first parameter to SSB transmission through at least one set of second parameters; wherein, the second SSB is the SSB corresponding to the SSB parameter configured for the SCell by the high-level signaling.

33. The terminal according to any one of claims 29 to 32, wherein: The first event includes at least one of the following: Receiving SCell activation signaling sent by the network-side device; Receiving SCell deactivation signaling sent by the network-side device; receiving a channel state information reference signal CSI-RS activation signaling sent by the network side device, where the CSI-RS activation signaling is used by the terminal to report channel state information CSI; receiving a CSI-RS configuration signaling sent by the network-side device, where the CSI-RS configuration signaling is used by the terminal to report CSI; Receiving a transmission configuration indication TCI state activation signaling sent by the network side device; Report at least one valid CSI; Report layer 1 reference signal received power RSRP; Reporting layer 27 RSRP.

34. The terminal according to any one of claims 29 to 32, wherein: The second signaling includes at least one of the following: Serving cell index; SSB activation instruction information; SSB deactivation indication information; Periodic switching indication information; SSB status value; SCell activation flag; SCell deactivation flag.

35. The terminal according to claim 29, wherein The first signaling and the second signaling include at least one of the following: Downlink control information DCI signaling; Media Access Control Unit MAC-CE signaling; Radio Resource Control (RRC) signaling.

36. The terminal according to claim 35, wherein: The DCI signaling is scrambled with a radio network temporary identifier (RNTI), and the RNTI is used to indicate activation or deactivation of SSB transmission.

37. A network-side device comprising a memory, a transceiver, and a processor: A memory for storing a computer program; a transceiver for transmitting and receiving data under the control of the processor; and a processor for reading the computer program in the memory and performing the following operations: Sending a first signaling to the terminal; wherein, The first signaling is used to indicate at least one of activation of SSB transmission and deactivation of SSB transmission.

38. The network side device according to claim 37, wherein: The first signaling includes at least one of the following: Serving cell index; SSB activation indication information, used to indicate activation of SSB transmission; SSB deactivation indication information is used to indicate deactivation of SSB transmission; SSB configuration index; SSB type indication information, used to indicate the type of SSB transmission; SSB deactivation type indication information is used to indicate the conditions for deactivating SSB transmission; Number of SSB transmissions; First time; Cycle switching indication information, used to indicate whether to change the SSB transmission cycle; SSB status value, used to indicate whether to change the current SSB transmission status; Secondary cell SCell activation flag; SCell deactivation flag.

39. The network side device according to claim 37, wherein: The operations further include: Send SSB type indication information to the terminal.

40. The network side device according to claim 38 or 39, wherein: The SSB type indication information includes at least one of the following: The number and position of SSBs in an SSB burst; At least one SSB period or SSB burst set interval; SSB subcarrier spacing; SSB power; SSB start time.

41. The network side device according to claim 37, wherein: The operations further include: In case the second event occurs, the current SSB transmission state is changed; or, Sending a second signaling to the terminal, where the second signaling is used to instruct a change in a current SSB transmission state; or, When the number of SSB transmissions in the first signaling is reached, changing the current SSB transmission state; or, The timing starts from activating the SSB transmission, and when the first time in the first signaling passes, the current SSB transmission state is changed.

42. The network side device according to claim 41, wherein: Changing the current SSB transmission state includes: Stop SSB transmission; or, When the current SSB transmission state is SSB transmission through first parameters, switch to SSB transmission through at least one set of second parameters; wherein the at least one set of second parameters is different from the first parameters.

43. The network side device according to claim 42, wherein: The stopping of SSB transmission includes: When the first signaling includes the SSB configuration index, stop transmitting the first SSB; wherein the first SSB is the SSB corresponding to the SSB configuration index; When the SSB configuration index is not included in the first signaling, the transmission of the second SSB is stopped; wherein the second SSB is the SSB corresponding to the SSB parameters configured for the SCell by the high-level signaling.

44. The network side device according to claim 42, wherein: The switching is to perform SSB transmission using at least one set of second parameters, including: When the first signaling includes the SSB configuration index, switching the SSB transmission of the first SSB using the first parameter to the SSB transmission using the at least one set of second parameters; wherein the first SSB is the SSB corresponding to the SSB configuration index; When the SSB configuration index is not included in the first signaling, the second SSB is switched from SSB transmission through the first parameter to SSB transmission through at least one set of second parameters; wherein, the second SSB is the SSB corresponding to the SSB parameter configured for the SCell by the high-level signaling.

45. The network side device according to any one of claims 41 to 44, wherein: The second event includes at least one of the following: Send SCell activation signaling; Send SCell deactivation signaling; Sending a channel state information reference signal CSI-RS activation signaling, where the CSI-RS activation signaling is used by the terminal to report channel state information CSI; Send CSI-RS configuration signaling, where the CSI-RS configuration signaling is used by the terminal to report CSI; Sending transmission configuration indication TCI state activation signaling; receiving at least one valid CSI reported by the terminal; receiving a layer 1 reference signal received power RSRP reported by the terminal; Receive the layer 3 RSRP reported by the terminal.

46. ​​The network side device according to any one of claims 41 to 44, wherein: The second signaling includes at least one of the following: Serving cell index; SSB activation instruction information; SSB deactivation indication information; Periodic switching indication information; SSB status value; SCell activation flag; SCell deactivation flag.

47. The network side device according to claim 41, wherein: The first signaling and the second signaling include at least one of the following: Downlink control information DCI signaling; Media Access Control Unit MAC-CE signaling; Radio Resource Control (RRC) signaling.

48. The network side device according to claim 47, wherein: The DCI signaling is scrambled with a radio network temporary identifier (RNTI), and the RNTI is used to indicate activation or deactivation of SSB transmission.

49. A synchronization block (SSB) transmission device, applied to a terminal, the device comprising: A receiving unit, configured to receive a first signaling from a network-side device; wherein the first signaling is used to indicate at least one of activating SSB transmission and deactivating SSB transmission; An SSB transmission unit is used to perform SSB transmission based on the first signaling.

50. A synchronization block (SSB) transmission device, applied to a network-side device, comprising: A sending unit, used to send a first signaling to a terminal; wherein the first signaling is used to indicate at least one of activating SSB transmission and deactivating SSB transmission.

51. A processor-readable storage medium storing a computer program, wherein the computer program is configured to cause the processor to execute the method according to any one of claims 1 to 12, or to execute the method according to any one of claims 13 to 24.

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