Information transmission method, apparatus and device

Abstract

The present disclosure provides an information transmission method, apparatus and device. The information transmission method comprises: receiving first signaling sent by a first network device, wherein the first signaling comprises first information and second information, the first information is used for indicating a first operation that a terminal needs to execute on the basis of an on-demand synchronization signal block sent by a second network device, and the second information is used for indicating whether the second network device sends the on-demand synchronization signal block before and / or after the terminal completes the first operation; on the basis of the second information, receiving an on-demand synchronization signal block; and on the basis of the first information, executing the first operation on the received on-demand synchronization signal block.

Description

Information transmission method, device and equipment

[0001] This disclosure claims priority to the Chinese patent disclosure with application number 202410402665.9, filed with the Chinese Patent Office on April 3, 2024, and entitled “A method, device and apparatus for information transmission,” the entire contents of which are incorporated herein by reference. Technical Field

[0002] The present disclosure relates to the field of communication technology, and in particular to an information transmission method, apparatus, and device. Background Art

[0003] In scenarios such as secondary cell (SCell) activation, the terminal may not be able to perform measurements and reports based on the synchronization signal block (SSB) in a timely manner, resulting in defects such as the SCell to be activated being unknown to the terminal. The terminal then needs to perform additional steps such as cell search, automatic gain control (AGC) adjustment, and Layer 1 reference signal received power (L1-RSRP) measurement, which in turn leads to a long SCell activation delay. In addition, after operations such as SCell activation are completed, SSBs may continue to be sent even when the terminal does not need them, resulting in power waste for the network and the terminal and reduced network efficiency.

[0004] As described above, the information transmission scheme for SSB in the related art may cause problems such as long SCell activation delay and high power consumption. Summary of the Invention

[0005] The purpose of the present disclosure is to provide an information transmission method, apparatus and device to solve the problem that the information transmission scheme for SSB in the related art may cause long SCell activation delay and high power consumption.

[0006] In order to solve the above technical problems, the present disclosure provides an information transmission method applied to a terminal, including:

[0007] Receiving first signaling sent by a first network device; the first signaling includes: first information and second information; the first information is used to indicate a first operation to be performed by the terminal according to the on-demand synchronization signal block sent by the second network device; the second information is used to indicate whether the second network device sends an on-demand synchronization signal block before and / or after the terminal completes the first operation;

[0008] receiving an on-demand synchronization signal block according to the second information;

[0009] Based on the first information, the first operation is performed on the received on-demand synchronization signal block.

[0010] In some embodiments, the first signaling further includes: third information and / or fourth information, the third information being transmission parameter indication information corresponding to the transmission mode of the on-demand synchronization signal block in the first time period, and the fourth information being transmission parameter indication information corresponding to the transmission mode of the on-demand synchronization signal block in the second time period;

[0011] The first time period is a time period from when the terminal receives the first signaling to when the first operation is completed; the second time period is a time period after the first operation is completed.

[0012] In some embodiments, the first operation includes at least one of the following:

[0013] Layer 1 measurement;

[0014] Layer 3 measurement;

[0015] The secondary cell is activated.

[0016] In some embodiments, the second information includes first bit information and / or second bit information; the first bit information is used to indicate whether the second network device sends an on-demand synchronization signal block within the first time period; the second bit information is used to indicate whether the second network device sends an on-demand synchronization signal block within the second time period.

[0017] In some embodiments, the transmission parameter set indicated by the transmission parameter indication information is configured by the first network device through radio resource control RRC signaling;

[0018] The sending parameter set includes: subcarrier spacing information, synchronization signal block SSB period information, and at least one of the time domain position information of SSB in the SSB burst set.

[0019] In some embodiments, before the first operation is completed, the on-demand synchronization signal block is sent according to the Mth transmission parameter set in the transmission parameter set configured by the RRC signaling, where M is a positive integer; or, before the first operation is completed, the on-demand synchronization signal block is sent according to the transmission parameter set corresponding to the third information.

[0020] In some embodiments, after the first operation is completed, the on-demand synchronization signal block is sent according to the sending parameter set corresponding to the fourth information.

[0021] In some embodiments, the third information and / or the fourth information indicates the sending parameter indication information in at least one of the following ways:

[0022] Indicating by sending an index of a parameter set, the index indicated in the first signaling being represented by a third bit of information, the bit length corresponding to the third bit of information being equal to ceiling(log2N), where N is the number of sending parameter sets configured by the RRC signaling;

[0023] The indication is performed through a bit map, where each bit in the bit map corresponds to a set of transmission parameter sets configured by the RRC signaling, and the bit length corresponding to the bit map is equal to N, where N is the number of transmission parameter sets configured by the RRC signaling.

[0024] In some embodiments, when the first bit information is used to indicate that the second network device sends an on-demand synchronization signal block within the first time period, the first bit information is further used to trigger associated measurement configuration and / or reporting configuration;

[0025] And / or, when the first bit information is used to indicate that the second network device does not send an on-demand synchronization signal block within the first time period, the first information is invalid information, and the start time of the second time period is the time when the first signaling is received;

[0026] And / or, when the second bit information is used to indicate that the second network device does not send an on-demand synchronization signal block within the second time period, the first signaling does not include the fourth information, or the fourth information is invalid information.

[0027] In some embodiments, the first signaling is media access control element MAC-CE signaling or downlink control information DCI signaling.

[0028] In some embodiments, further comprising:

[0029] Receive second signaling sent by the first network device, where the second signaling includes at least one of the following:

[0030] Secondary cell SCell activation signaling;

[0031] Physical downlink control channel transmission configuration indication PDCCH TCI state activation signaling;

[0032] Physical downlink shared channel transmission configuration indication PDSCH TCI state activation signaling;

[0033] Activation signaling of a channel state information reference signal (CSI-RS) resource set used for channel state information (CSI) measurement.

[0034] In some embodiments, the CSI-RS resource set is periodic, semi-persistent, or aperiodic.

[0035] The embodiment of the present disclosure further provides an information transmission method, which is applied to a first network device, including:

[0036] A first signaling is sent to a terminal; the first signaling includes: first information and second information; the first information is used to indicate the first operation that the terminal needs to perform according to the on-demand synchronization signal block sent by the second network device; the second information is used to indicate whether the second network device sends an on-demand synchronization signal block before and / or after the terminal completes the first operation.

[0037] In some embodiments, the first signaling further includes: third information and / or fourth information, the third information being transmission parameter indication information corresponding to the transmission mode of the on-demand synchronization signal block in the first time period, and the fourth information being transmission parameter indication information corresponding to the transmission mode of the on-demand synchronization signal block in the second time period;

[0038] The first time period is a time period from when the terminal receives the first signaling to when the first operation is completed; the second time period is a time period after the first operation is completed.

[0039] In some embodiments, the first operation includes at least one of the following:

[0040] Layer 1 measurement;

[0041] Layer 3 measurement;

[0042] The secondary cell is activated.

[0043] In some embodiments, the second information includes first bit information and / or second bit information; the first bit information is used to indicate whether the second network device sends an on-demand synchronization signal block within the first time period; the second bit information is used to indicate whether the second network device sends an on-demand synchronization signal block within the second time period.

[0044] In some embodiments, the transmission parameter set indicated by the transmission parameter indication information is configured by the first network device through radio resource control RRC signaling;

[0045] The sending parameter set includes: subcarrier spacing information, synchronization signal block SSB period information, and at least one of the time domain position information of SSB in the SSB burst set.

[0046] In some embodiments, before the first operation is completed, the on-demand synchronization signal block is sent according to the Mth transmission parameter set in the transmission parameter set configured by the RRC signaling, where M is a positive integer; or, before the first operation is completed, the on-demand synchronization signal block is sent according to the transmission parameter set corresponding to the third information.

[0047] In some embodiments, after the first operation is completed, the on-demand synchronization signal block is sent according to the sending parameter set corresponding to the fourth information.

[0048] In some embodiments, the third information and / or the fourth information indicates the sending parameter indication information in at least one of the following ways:

[0049] Indicating by sending an index of a parameter set, the index indicated in the first signaling being represented by a third bit of information, the bit length corresponding to the third bit of information being equal to ceiling(log2N), where N is the number of sending parameter sets configured by the RRC signaling;

[0050] The indication is performed through a bit map, where each bit in the bit map corresponds to a set of transmission parameter sets configured by the RRC signaling, and the bit length corresponding to the bit map is equal to N, where N is the number of transmission parameter sets configured by the RRC signaling.

[0051] In some embodiments, when the first bit information is used to indicate that the second network device sends an on-demand synchronization signal block within the first time period, the first bit information is further used to trigger associated measurement configuration and / or reporting configuration;

[0052] And / or, when the first bit information is used to indicate that the second network device does not send an on-demand synchronization signal block within the first time period, the first information is invalid information, and the start time of the second time period is the time when the first signaling is received;

[0053] And / or, when the second bit information is used to indicate that the second network device does not send an on-demand synchronization signal block within the second time period, the first signaling does not include the fourth information, or the fourth information is invalid information.

[0054] In some embodiments, the first signaling is media access control element MAC-CE signaling or downlink control information DCI signaling.

[0055] In some embodiments, further comprising:

[0056] Sending second signaling to the terminal, where the second signaling includes at least one of the following:

[0057] Secondary cell SCell activation signaling;

[0058] Physical downlink control channel transmission configuration indication PDCCH TCI state activation signaling;

[0059] Physical downlink shared channel transmission configuration indication PDSCH TCI state activation signaling;

[0060] Activation signaling of a channel state information reference signal (CSI-RS) resource set used for channel state information (CSI) measurement.

[0061] In some embodiments, the CSI-RS resource set is periodic, semi-persistent, or aperiodic.

[0062] The present disclosure also provides an information transmission device, which is a terminal and includes a memory, a transceiver, and a processor.

[0063] 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:

[0064] Receiving, by the transceiver, first signaling sent by a first network device; the first signaling comprising: first information and second information; the first information being used to instruct the terminal to perform a first operation according to an on-demand synchronization signal block sent by the second network device; and the second information being used to instruct whether the second network device sends an on-demand synchronization signal block before and / or after the terminal completes the first operation;

[0065] receiving, by the transceiver, an on-demand synchronization signal block according to the second information;

[0066] Based on the first information, the first operation is performed on the received on-demand synchronization signal block.

[0067] In some embodiments, the first signaling further includes: third information and / or fourth information, the third information being transmission parameter indication information corresponding to the transmission mode of the on-demand synchronization signal block in the first time period, and the fourth information being transmission parameter indication information corresponding to the transmission mode of the on-demand synchronization signal block in the second time period;

[0068] The first time period is a time period from when the terminal receives the first signaling to when the first operation is completed; the second time period is a time period after the first operation is completed.

[0069] In some embodiments, the first operation includes at least one of the following:

[0070] Layer 1 measurement;

[0071] Layer 3 measurement;

[0072] The secondary cell is activated.

[0073] In some embodiments, the second information includes first bit information and / or second bit information; the first bit information is used to indicate whether the second network device sends an on-demand synchronization signal block within the first time period; the second bit information is used to indicate whether the second network device sends an on-demand synchronization signal block within the second time period.

[0074] In some embodiments, the transmission parameter set indicated by the transmission parameter indication information is configured by the first network device through radio resource control RRC signaling;

[0075] The sending parameter set includes: subcarrier spacing information, synchronization signal block SSB period information, and at least one of the time domain position information of SSB in the SSB burst set.

[0076] In some embodiments, before the first operation is completed, the on-demand synchronization signal block is sent according to the Mth transmission parameter set in the transmission parameter set configured by the RRC signaling, where M is a positive integer; or, before the first operation is completed, the on-demand synchronization signal block is sent according to the transmission parameter set corresponding to the third information.

[0077] In some embodiments, after the first operation is completed, the on-demand synchronization signal block is sent according to the sending parameter set corresponding to the fourth information.

[0078] In some embodiments, the third information and / or the fourth information indicates the sending parameter indication information in at least one of the following ways:

[0079] Indicating by sending an index of a parameter set, the index indicated in the first signaling being represented by a third bit of information, the bit length corresponding to the third bit of information being equal to ceiling(log2N), where N is the number of sending parameter sets configured by the RRC signaling;

[0080] The indication is performed through a bit map, where each bit in the bit map corresponds to a set of transmission parameter sets configured by the RRC signaling, and the bit length corresponding to the bit map is equal to N, where N is the number of transmission parameter sets configured by the RRC signaling.

[0081] In some embodiments, when the first bit information is used to indicate that the second network device sends an on-demand synchronization signal block within the first time period, the first bit information is further used to trigger associated measurement configuration and / or reporting configuration;

[0082] And / or, when the first bit information is used to indicate that the second network device does not send an on-demand synchronization signal block within the first time period, the first information is invalid information, and the start time of the second time period is the time when the first signaling is received;

[0083] And / or, when the second bit information is used to indicate that the second network device does not send an on-demand synchronization signal block within the second time period, the first signaling does not include the fourth information, or the fourth information is invalid information.

[0084] In some embodiments, the first signaling is media access control element MAC-CE signaling or downlink control information DCI signaling.

[0085] In some embodiments, the operations further include:

[0086] receiving, by the transceiver, second signaling sent by the first network device, where the second signaling includes at least one of the following:

[0087] Secondary cell SCell activation signaling;

[0088] Physical downlink control channel transmission configuration indication PDCCH TCI state activation signaling;

[0089] Physical downlink shared channel transmission configuration indication PDSCH TCI state activation signaling;

[0090] Activation signaling of a channel state information reference signal (CSI-RS) resource set used for channel state information (CSI) measurement.

[0091] In some embodiments, the CSI-RS resource set is periodic, semi-persistent, or aperiodic.

[0092] The embodiment of the present disclosure further provides an information transmission device, which is a first network device and includes a memory, a transceiver, and a processor:

[0093] 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:

[0094] A first signaling is sent to the terminal through the transceiver; the first signaling includes: first information and second information; the first information is used to indicate the first operation that the terminal needs to perform according to the on-demand synchronization signal block sent by the second network device; the second information is used to indicate whether the second network device sends an on-demand synchronization signal block before and / or after the terminal completes the first operation.

[0095] The present disclosure also provides an information transmission device, which is applied to a terminal and includes:

[0096] A first receiving unit, configured to receive a first signaling sent by a first network device; the first signaling comprising: first information and second information; the first information being used to indicate a first operation to be performed by the terminal according to an on-demand synchronization signal block sent by the second network device; and the second information being used to indicate whether the second network device sends an on-demand synchronization signal block before and / or after the terminal completes the first operation;

[0097] A second receiving unit, configured to receive an on-demand synchronization signal block according to the second information;

[0098] The first execution unit is used to perform the first operation on the received on-demand synchronization signal block according to the first information.

[0099] The present disclosure also provides an information transmission apparatus, applied to a first network device, including:

[0100] A first sending unit is used to send a first signaling to a terminal; the first signaling includes: first information and second information; the first information is used to indicate the first operation that the terminal needs to perform according to the on-demand synchronization signal block sent by the second network device; the second information is used to indicate whether the second network device sends an on-demand synchronization signal block before and / or after the terminal completes the first operation.

[0101] An embodiment of the present disclosure further provides a non-transitory readable storage medium storing a computer program, wherein the computer program is used to enable a processor to execute the above-mentioned information transmission method on the terminal side or the first network device side.

[0102] The embodiment of the present disclosure further provides a computer program product, including computer instructions, which, when executed by a processor, implement the steps of the above-mentioned information transmission method on the terminal side or the first network device side.

[0103] The beneficial effects of the above technical solutions disclosed herein are as follows:

[0104] In the above scheme, the information transmission method is through receiving the first signaling sent by the first network device; the first signaling includes: first information and second information; the first information is used to indicate the first operation that the terminal needs to perform according to the on-demand synchronization signal block sent by the second network device; the second information is used to indicate whether the second network device sends an on-demand synchronization signal block before and / or after the terminal completes the first operation; according to the second information, the on-demand synchronization signal block is received; according to the first information, the first operation is performed on the received on-demand synchronization signal block; it can support the terminal to know in advance the first operation to be performed and the sending status of the on-demand synchronization signal block, so as to receive SSB in time according to the first signaling and operate based on SSB, which can support shortening the activation delay of SCell; and through the second information, it can support the network to no longer send SSB when there is no demand from the terminal, thereby achieving the purpose of energy saving and avoiding power waste, which is a good solution to the problem that the information transmission scheme for SSB in the related technology may cause a long SCell activation delay and high power consumption. BRIEF DESCRIPTION OF THE DRAWINGS

[0105] FIG1 is a schematic diagram of a wireless communication system architecture according to an embodiment of the present disclosure;

[0106] FIG2 is a flow chart of an information transmission method according to an embodiment of the present disclosure;

[0107] FIG3 is a second flow chart of the information transmission method according to an embodiment of the present disclosure;

[0108] FIG4 is a schematic diagram of a specific implementation of the information transmission method according to an embodiment of the present disclosure;

[0109] FIG5 is a second schematic diagram of a specific implementation of the information transmission method according to an embodiment of the present disclosure;

[0110] FIG6 is a third schematic diagram of a specific implementation of the information transmission method according to an embodiment of the present disclosure;

[0111] FIG7 is a fourth schematic diagram of a specific implementation of the information transmission method according to an embodiment of the present disclosure;

[0112] FIG8 is a fifth schematic diagram of a specific implementation of the information transmission method according to an embodiment of the present disclosure;

[0113] FIG9 is a sixth schematic diagram of a specific implementation of the information transmission method according to an embodiment of the present disclosure;

[0114] FIG10 is a first structural diagram of an information transmission device according to an embodiment of the present disclosure;

[0115] FIG11 is a second structural diagram of an information transmission device according to an embodiment of the present disclosure;

[0116] FIG12 is a structural diagram of an information transmission device according to an embodiment of the present disclosure;

[0117] FIG13 is a second structural diagram of the information transmission device according to an embodiment of the present disclosure. DETAILED DESCRIPTION

[0118] 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.

[0119] 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.

[0120] In the embodiments of the present disclosure, the term "plurality" refers to two or more than two, and other quantifiers are similar thereto.

[0121] It is explained here that the technical solution provided by the embodiment of the present disclosure can be applicable to a variety of systems, especially the fifth generation mobile communication technology (5th-Generation, 5G) system. For example, the applicable system can be a global system of mobile communication (GSM) system, a code division multiple access (CDMA) system, a wideband code division multiple access (WCDMA) general packet radio service (GPRS) system, a long term evolution (LTE) system, a LTE frequency division duplex (FDD) system, a LTE time division duplex (TDD) system, an advanced long term evolution (LTE-A) system, a universal mobile telecommunication system (UMTS), a world-wide interoperability for microwave access (WiMAX) system, a 5G new air interface (NR) system, etc. These various systems include terminal devices and network devices. The system may also include core network parts, such as the Evolved Packet System (EPS), 5G System (5GS), etc.

[0122] Figure 1 shows a block diagram of a wireless communication system to which embodiments of the present disclosure may be applied. The wireless communication system includes a terminal device (also referred to as a terminal) and a network device.

[0123] 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 initiation 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.

[0124] 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 named by 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 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.

[0125] 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 two-dimensional MIMO (2D-MIMO), three-dimensional MIMO (3D-MIMO), full-dimensional MIMO (FD-MIMO), or massive MIMO. It can also use diversity transmission, precoding, or beamforming.

[0126] The following first introduces the contents involved in the solution provided by the embodiment of the present disclosure.

[0127] 1. Currently, the SSB information of an SCell is configured by the primary cell (PCell) through radio resource control (RRC) signaling. The configuration includes the transmission period, subcarrier spacing, and the time domain position of the SSB in the SSB burst set. However, after RRC configuration, the SSB of an SCell only supports one configured transmission mode and cannot be adjusted in a timely manner according to service needs.

[0128] 2. During SCell activation, based on whether the terminal has performed valid measurement reporting, the SCell cells to be activated can be divided into known cells and unknown cells. Compared with the activation process of known cells, unknown cells require additional steps such as cell search, AGC adjustment, and L1-RSRP measurement, which prolongs the activation time.

[0129] Based on the foregoing, embodiments of the present disclosure provide an information transmission method, apparatus, and device to address the issues in related technologies regarding SSB information transmission schemes, which may result in long SCell activation delays and high power consumption. The method, apparatus, and device are based on the same disclosed concept. Since the principles for solving the problems are similar, the implementation of the method, apparatus, and device can refer to each other, and any repetitions will not be repeated.

[0130] The information transmission method provided in the embodiment of the present disclosure is applied to a terminal, as shown in FIG2 , and includes:

[0131] Step 21: Receive first signaling sent by a first network device; the first signaling includes: first information and second information; the first information is used to indicate a first operation to be performed by the terminal according to the on-demand synchronization signal block sent by the second network device; the second information is used to indicate whether the second network device sends an on-demand synchronization signal block before and / or after the terminal completes the first operation;

[0132] Step 22: Receive an on-demand synchronization signal block according to the second information;

[0133] Step 23: Based on the first information, perform the first operation on the received on-demand synchronization signal block.

[0134] The first signaling may also be referred to as trigger signaling or on-demand synchronization signal block activation signaling, which is not limited here; the communication and / or coordination between the first network device and the second network device may be completed before the first network device sends the trigger signaling, but is not limited to this.

[0135] The information transmission method provided by the embodiment of the present disclosure is through receiving the first signaling sent by the first network device; the first signaling includes: first information and second information; the first information is used to indicate the first operation that the terminal needs to perform according to the on-demand synchronization signal block sent by the second network device; the second information is used to indicate whether the second network device sends an on-demand synchronization signal block before and / or after the terminal completes the first operation; according to the second information, the on-demand synchronization signal block is received; according to the first information, the first operation is performed on the received on-demand synchronization signal block; it can support the terminal to know in advance the first operation that needs to be performed and the sending status of the on-demand synchronization signal block, so as to receive SSB in time according to the first signaling and operate based on SSB, which can support shortening the activation delay of SCell; and through the second information, it can support the network to no longer send SSB when there is no demand from the terminal, thereby achieving the purpose of energy saving and avoiding power waste, which is a good solution to the problem that the information transmission scheme for SSB in the related technology may cause a long SCell activation delay and high power consumption. Specifically, this solution supports the terminal to be informed in advance that the SCell needs to be activated, and completes L1 / L3-RSRP measurement based on dense on-demand SSB, so that the SCell to be activated will be activated according to the known cells, shortening the activation delay of the SCell.

[0136] Wherein, the first signaling also includes: third information and / or fourth information, the third information is the sending parameter indication information corresponding to the sending mode of the on-demand synchronization signal block in the first time period, and the fourth information is the sending parameter indication information corresponding to the sending mode of the on-demand synchronization signal block in the second time period; wherein, the first time period is the time period after the terminal receives the first signaling until the first operation is completed; the second time period refers to the time period after the first operation is completed. In this way, the sending parameter indication information can be clearly indicated. Wherein, the length of the second time period can be arbitrary and there is no limit. The network side can continue to send on-demand synchronization signal blocks periodically. If the network side needs to stop sending on-demand synchronization signal blocks, it can inform the terminal that the on-demand synchronization signal blocks have stopped sending by sending the first signaling again; for example, the content of the 2-bit bitmap involved below: {0,0}.

[0137] In the embodiment of the present disclosure, the first operation includes at least one of the following: layer 1 measurement; layer 3 measurement; and secondary cell activation. This clarifies the content of the first operation.

[0138] The second information includes first bit information and / or second bit information; the first bit information is used to indicate whether the second network device sends an on-demand synchronization signal block within the first time period; the second bit information is used to indicate whether the second network device sends an on-demand synchronization signal block within the second time period. In this way, it is possible to accurately indicate whether the second network device sends an on-demand synchronization signal block within each time period. For example, if the bit value corresponding to the first bit information is 1, it can indicate yes (i.e., sending), and if it is 0, it can indicate no (i.e., not sending).

[0139] In the embodiment of the present disclosure, the transmission parameter set indicated by the transmission parameter indication information is configured by the first network device through radio resource control (RRC) signaling; the transmission parameter set includes at least one of subcarrier spacing information, synchronization signal block (SSB) period information, and time-domain position information of SSBs in an SSB burst set. This allows the terminal to accurately obtain the transmission parameter set.

[0140] Before the first operation is completed, the on-demand synchronization signal block is sent according to the transmission parameter set ranked Mth in the transmission parameter set configured by the RRC signaling, where M is a positive integer; or, before the first operation is completed, the on-demand synchronization signal block is sent according to the transmission parameter set corresponding to the third information. This allows for multiple ways to implement the sending of on-demand synchronization signal blocks before the first operation is completed. M can take the value 1, which defaults to using the transmission parameter set ranked first.

[0141] In the embodiment of the present disclosure, after the first operation is completed, the on-demand synchronization signal block is transmitted according to the transmission parameter set corresponding to the fourth information. This supports accurate transmission of the on-demand synchronization signal block. For the purpose of explanation, if there is only one set of transmission parameter sets configured by RRC signaling, the on-demand synchronization signal block can be transmitted according to the set of transmission parameter sets before and / or after the completion of the first operation; the third information and / or the fourth information can be omitted or treated as invalid information.

[0142] The third information and / or the fourth information indicates the sending parameter indication information in at least one of the following ways: (1) indicating by an index of a sending parameter set, the index indicated in the first signaling is represented by a third bit information, the bit length corresponding to the third bit information is equal to ceiling(log2N), N is the number of sending parameter sets configured by the RRC signaling; (2) indicating by a bit map, each bit in the bit map corresponds to a group of sending parameter sets configured by the RRC signaling, the bit length corresponding to the bit map is equal to N, N is the number of sending parameter sets configured by the RRC signaling. In this way, multiple ways of implementing the indication of the sending parameter indication information can be supported.

[0143] In an embodiment of the present disclosure, when the first bit information is used to indicate that the second network device sends an on-demand synchronization signal block within the first time period, the first bit information is also used to trigger the associated measurement configuration and / or reporting configuration; and / or, when the first bit information is used to indicate that the second network device does not send an on-demand synchronization signal block within the first time period, the first information is invalid information, and the starting moment of the second time period is the moment when the first signaling is received; and / or, when the second bit information is used to indicate that the second network device does not send an on-demand synchronization signal block within the second time period, the first signaling does not include the fourth information, or the fourth information is invalid information. This can save signaling and power consumption. Among them, "the starting moment of the second time period is the moment when the first signaling is received" can also be understood as that the second time period is the time period after the terminal receives the first signaling.

[0144] The first signaling is a Media Access Control (MAC)-Control Element (CE) signaling or a Downlink Control Information (DCI) signaling. In this way, the first signaling can be implemented in multiple ways.

[0145] Furthermore, the information transmission method further includes: receiving a second signaling sent by the first network device, wherein the second signaling includes at least one of the following: secondary cell SCell activation signaling; physical downlink control channel (PDCCH) transmission configuration indication (TCI) state activation signaling; physical downlink shared channel (PDSCH) transmission configuration indication PDSCH TCI state activation signaling; activation signaling of a channel state information reference signal (CSI-RS) resource set for channel state information (CSI) measurement. This can support the complete implementation of multiple solutions.

[0146] The CSI-RS resource set is periodic, semi-persistent or aperiodic, which can support activation signaling for multiple CSI-RS resource sets.

[0147] The present disclosure also provides an information transmission method, which is applied to a first network device, as shown in FIG3 , and includes:

[0148] Step 31: Send a first signaling to the terminal; the first signaling includes: first information and second information; the first information is used to indicate the first operation that the terminal needs to perform according to the on-demand synchronization signal block sent by the second network device; the second information is used to indicate whether the second network device sends an on-demand synchronization signal block before and / or after the terminal completes the first operation.

[0149] The first signaling may also be referred to as trigger signaling or on-demand synchronization signal block activation signaling, which is not limited here; the communication and / or coordination between the first network device and the second network device may be completed before the first network device sends the trigger signaling, but is not limited to this.

[0150] The information transmission method provided in the embodiments of the present disclosure sends a first signaling to a terminal; the first signaling includes: first information and second information; the first information is used to indicate the first operation to be performed by the terminal based on the on-demand synchronization signal block sent by the second network device; the second information is used to indicate whether the second network device sends the on-demand synchronization signal block before and / or after the terminal completes the first operation. The method can support the terminal to know in advance the first operation to be performed and the transmission status of the on-demand synchronization signal block, so that it can receive the SSB in a timely manner according to the first signaling and perform operations based on the SSB, which can support shortening the activation delay of the SCell. Moreover, the second information can support the network not to send the SSB when the terminal does not need it, thereby achieving the purpose of energy saving and avoiding power waste. This method effectively solves the problem that the information transmission scheme for SSB in the related art may cause long SCell activation delay and high power consumption. Specifically, this scheme supports the terminal to know in advance that the SCell needs to be activated and completes L1 / L3-RSRP measurement based on dense on-demand SSB, so that the SCell to be activated will be activated according to the known cell, shortening the SCell activation delay.

[0151] The first signaling further includes: third information and / or fourth information, wherein the third information is transmission parameter indication information corresponding to the transmission mode of the on-demand synchronization signal block in a first time period, and the fourth information is transmission parameter indication information corresponding to the transmission mode of the on-demand synchronization signal block in a second time period; wherein the first time period is the time period from the time the terminal receives the first signaling to the time the first operation is completed; and the second time period is the time period after the first operation is completed. This can clearly indicate the transmission parameter indication information.

[0152] In the embodiment of the present disclosure, the first operation includes at least one of the following: layer 1 measurement; layer 3 measurement; and secondary cell activation. This clarifies the content of the first operation.

[0153] The second information includes first bit information and / or second bit information; the first bit information is used to indicate whether the second network device sends an on-demand synchronization signal block within the first time period; the second bit information is used to indicate whether the second network device sends an on-demand synchronization signal block within the second time period. In this way, it is possible to accurately indicate whether the second network device sends an on-demand synchronization signal block within each time period. For example, if the bit value corresponding to the first bit information is 1, it can indicate yes (i.e., sending), and if it is 0, it can indicate no (i.e., not sending).

[0154] In the embodiment of the present disclosure, the transmission parameter set indicated by the transmission parameter indication information is configured by the first network device through radio resource control (RRC) signaling; the transmission parameter set includes at least one of subcarrier spacing information, synchronization signal block (SSB) period information, and time-domain position information of SSBs in an SSB burst set. This allows the terminal to accurately obtain the transmission parameter set.

[0155] Before the first operation is completed, the on-demand synchronization signal block is sent according to the transmission parameter set ranked Mth in the transmission parameter set configured by the RRC signaling, where M is a positive integer; or, before the first operation is completed, the on-demand synchronization signal block is sent according to the transmission parameter set corresponding to the third information. This allows for multiple ways to implement the sending of on-demand synchronization signal blocks before the first operation is completed. M can take the value 1, which defaults to using the transmission parameter set ranked first.

[0156] In the embodiment of the present disclosure, after the first operation is completed, the on-demand synchronization signal block is transmitted according to the transmission parameter set corresponding to the fourth information. This supports accurate transmission of the on-demand synchronization signal block. For the purpose of explanation, if there is only one set of transmission parameter sets configured by RRC signaling, the on-demand synchronization signal block can be transmitted according to the set of transmission parameter sets before and / or after the completion of the first operation; the third information and / or the fourth information can be omitted or treated as invalid information.

[0157] The third information and / or the fourth information indicates the sending parameter indication information in at least one of the following ways: (1) indicating by an index of a sending parameter set, the index indicated in the first signaling is represented by a third bit information, the bit length corresponding to the third bit information is equal to ceiling(log2N), N is the number of sending parameter sets configured by the RRC signaling; (2) indicating by a bit map, each bit in the bit map corresponds to a group of sending parameter sets configured by the RRC signaling, the bit length corresponding to the bit map is equal to N, N is the number of sending parameter sets configured by the RRC signaling. In this way, multiple ways of implementing the indication of the sending parameter indication information can be supported.

[0158] In an embodiment of the present disclosure, when the first bit information is used to indicate that the second network device sends an on-demand synchronization signal block within the first time period, the first bit information is also used to trigger the associated measurement configuration and / or reporting configuration; and / or, when the first bit information is used to indicate that the second network device does not send an on-demand synchronization signal block within the first time period, the first information is invalid information, and the starting moment of the second time period is the moment when the first signaling is received; and / or, when the second bit information is used to indicate that the second network device does not send an on-demand synchronization signal block within the second time period, the first signaling does not include the fourth information, or the fourth information is invalid information. This can save signaling and power consumption. Among them, "the starting moment of the second time period is the moment when the first signaling is received" can also be understood as that the second time period is the time period after the terminal receives the first signaling.

[0159] The first signaling is a media access control element MAC-CE signaling or a downlink control information DCI signaling. In this way, the first signaling can be implemented in multiple ways.

[0160] Furthermore, the information transmission method further includes: sending a second signaling to the terminal, wherein the second signaling includes at least one of the following: secondary cell (SCell) activation signaling; physical downlink control channel (PDCCH) TCI state activation signaling; physical downlink shared channel (PDSCH) TCI state activation signaling; and activation signaling of a channel state information reference signal (CSI-RS) resource set for channel state information (CSI) measurement. This can fully support the implementation of multiple solutions.

[0161] The CSI-RS resource set is periodic, semi-persistent or aperiodic, which can support activation signaling for multiple CSI-RS resource sets.

[0162] It is noted here that the relevant contents on the terminal side and the first network device side can refer to each other, and the repeated parts will not be repeated.

[0163] The information transmission method provided in the embodiment of the present disclosure is described below with an example, where a base station (such as a PCell (Primary Cell)) is taken as an example of the first network device, and an SCell is taken as an example of the second network device.

[0164] In response to the above technical problems, an embodiment of the present disclosure provides an information transmission method, which can be specifically implemented as an on-demand SSB (on-demand Synchronization Signal / PBCH Block) indication method, mainly involving: for the on-demand SSB sent by the SCell, designing trigger signaling (corresponding to the above-mentioned first signaling) to instruct the terminal to complete L1 / L3 (layer 1 or layer 3, Layer1 / Layer3) measurement or SCell activation and other operations (corresponding to the above-mentioned first information used to indicate the first operation to be performed by the terminal according to the on-demand synchronization signal block sent by the second network device), and indicating whether the SCell sends the SSB and the sending mode of the sent SSB before and / or after the terminal completes the indicated operation (corresponding to the above-mentioned second information used to indicate whether the second network device sends the on-demand synchronization signal block before and / or after the terminal completes the first operation; the third information is the sending parameter indication information corresponding to the sending mode of the on-demand synchronization signal block in the first time period, and the fourth information is the sending parameter indication information corresponding to the sending mode of the on-demand synchronization signal block in the second time period). Based on this, depending on the information configured by the trigger signaling, the signaling can also indicate the new SSB transmission parameters of the terminal or inform the terminal to stop sending SSB. In addition, this solution also provides rules for determining the information indicated by the above trigger signaling. Based on the signaling design of this solution, the network device (which may include the first network device and / or the second network device) can flexibly adjust the sending, termination and SSB sending mode of SSB according to the needs of the terminal, and ultimately achieve energy saving on the network and terminal side. Specifically, this solution involves the following contents:

[0165] 1. A trigger signaling (corresponding to the first signaling mentioned above), the content of which includes:

[0166] -Information indicating an operation that the terminal should perform based on the on-demand SSB; corresponding to the above-mentioned first information, used to instruct the terminal to perform a first operation according to the on-demand synchronization signal block sent by the second network device;

[0167] -2-bit bitmap, indicating whether the terminal sends an on-demand SSB before and / or after completing the corresponding operation (i.e., the above-mentioned operation to be performed); corresponding to the above-mentioned second information, used to indicate whether the second network device sends an on-demand synchronization signal block before and / or after the terminal completes the first operation;

[0168] 2. Based on 1, the trigger signaling may also include transmission parameter indication information indicating the on-demand SSB transmission mode; corresponding to the above-mentioned first signaling, it also includes: third information and / or fourth information, the third information is the transmission parameter indication information corresponding to the transmission mode of the on-demand synchronization signal block in the first time period, and the fourth information is the transmission parameter indication information corresponding to the transmission mode of the on-demand synchronization signal block in the second time period; wherein, the first time period is the time period after the terminal receives the first signaling until the first operation is completed; the second time period refers to the time period after the first operation is completed.

[0169] 3. Based on 1, the operation that the terminal should perform based on the on-demand SSB (corresponding to the first operation) includes at least one of the following:

[0170] -L1 / L3 measurement;

[0171] -SCell activation.

[0172] 4. Based on 1, the content of the 2-bit bitmap can be one of the following:

[0173] -{0,0}: can indicate on-demand SSB deactivation, that is, inform the terminal to stop sending on-demand SSB. The first bit and the second bit are both 0, indicating that the second network device has stopped sending on-demand synchronization signal blocks after the terminal receives the trigger signaling (it can be understood that the length of the first time period is 0, and the second time period starts from the receipt of the trigger signaling). At this time, the indicated operation (that is, the operation to be performed above) is invalid (corresponding to the above-mentioned first information being invalid information). Specifically, the content can be understood as: when the first bit information is used to indicate that the second network device does not send on-demand synchronization signal blocks within the first time period, and the second bit information is used to indicate that the second network device does not send on-demand synchronization signal blocks within the second time period, the second information is used to indicate the deactivation of the on-demand synchronization signal block.

[0174] -{0,1}: can be sent by the base station to inform the terminal of an update of on-demand SSB transmission parameters, used for terminal time and frequency synchronization, etc. The first bit is 0, indicating that the second network device does not send an on-demand synchronization signal block before the terminal completes the indicated operation. In this case, the indicated operation (i.e., the operation to be performed) is invalid, and the terminal does not perform the indicated operation. The second bit is 1, indicating that the second network device sends an on-demand synchronization signal block after receiving the trigger signaling. This can be understood as the second time period starting from the receipt of the trigger signaling (i.e., the length of the first time period is 0). Corresponding to the invalid first information, the start time of the second time period is the time when the first signaling is received. Specifically, this content can be understood as: when the first bit information is used to indicate that the second network device does not send an on-demand synchronization signal block during the first time period, and the second bit information is used to indicate that the second network device sends an on-demand synchronization signal block during the second time period, the second information is also used to indicate that the transmission parameter indication information of the on-demand synchronization signal block has been updated, and instructs the terminal to receive the on-demand synchronization signal block according to the updated transmission parameter indication information contained in the currently received trigger signaling.

[0175] -{1,0}: This bit indicates that the terminal will stop sending on-demand SSBs after completing the indicated operation. The first bit is 1, indicating that the second network device sends on-demand sync signal blocks before the terminal completes the indicated operation; the second bit is 0, indicating that the second network device does not send on-demand sync signal blocks after the terminal completes the indicated operation.

[0176] -{1,1}: This bit indicates that the terminal will continue to send on-demand SSBs after completing the indicated operation. Specifically, if the first bit is 1, it indicates that the second network device will send on-demand SSBs before the terminal completes the indicated operation; if the second bit is 1, it indicates that the second network device will send on-demand SSBs after the terminal completes the indicated operation.

[0177] The content of the above 2-bit bitmap may correspond to the above-mentioned second information including the first bit information and / or the second bit information; the first bit information is used to indicate whether the second network device sends an on-demand synchronization signal block within the first time period; the second bit information is used to indicate whether the second network device sends an on-demand synchronization signal block within the second time period.

[0178] It is noted here that the above two contents {0,0} and {0,1} can be configured in the second trigger signaling or the second or subsequent trigger signaling, but the present invention is not limited thereto.

[0179] 5. Based on 2, the transmission parameter set indicated by the transmission parameter indication information is configured by the base station through RRC signaling (corresponding to the transmission parameter set indicated by the above transmission parameter indication information being configured by the first network device through radio resource control RRC signaling), and the base station configures at least one set of on-demand SSB transmission parameter sets, each set of transmission parameter sets containing a complete set of SSB transmission parameters, including at least the following information:

[0180] - subcarrier spacing;

[0181] -SSB period;

[0182] -The time domain position of the SSB in the SSB burst set (which can be indicated by ssb-PositionsInBurst (burst position)).

[0183] The SSB transmission parameters contained in the above transmission parameter set correspond to the above transmission parameter set including: subcarrier spacing information, synchronization signal block SSB period information, and at least one of the time domain position information of the SSB in the SSB burst set.

[0184] The RRC signaling may be sent to the terminal before the trigger signaling.

[0185] 6. Based on 2, the transmission parameter indication can be determined as follows: the parameter set ranked first in the transmission parameter set configured by RRC signaling is the first configuration, which is the default configuration. Before the terminal completes the indicated operation, the on-demand SSB of the SCell is sent according to the transmission parameter set of the default configuration; corresponding to the above, before the first operation is completed, the on-demand synchronization signal block is sent according to the transmission parameter set ranked Mth in the transmission parameter set configured by RRC signaling, where M is a positive integer. After the terminal completes the indicated operation, the transmission parameters of the on-demand SSB of the SCell are explicitly indicated by the transmission parameter indication information in the on-demand SSB trigger signaling; corresponding to the above, after the first operation is completed, the on-demand synchronization signal block is sent according to the transmission parameter set corresponding to the fourth information.

[0186] 7. Based on 2, the sending parameter indication can also be determined as follows: the sending parameters of the on-demand SSB before and after the terminal completes the indicated operation are explicitly indicated by the sending parameter indication information in the on-demand SSB trigger signaling; corresponding to the above, before the first operation is completed, the on-demand synchronization signal block is sent according to the sending parameter set corresponding to the third information; after the first operation is completed, the on-demand synchronization signal block is sent according to the sending parameter set corresponding to the fourth information.

[0187] 8. Based on 6 or 7, the method for explicitly indicating the on-demand SSB transmission parameter indication information before and after the terminal completes the indicated operation may be: indicating by the index of the transmission parameter set, the index indicated in the trigger signaling is represented by bits, the required bit length is equal to ceiling(log2N), N is the number of transmission parameter sets configured by the RRC signaling, and ceiling indicates rounding upwards; corresponding to the third information and / or fourth information, the transmission parameter indication information is indicated in the following manner: indicating by the index of the transmission parameter set, the index indicated in the first signaling is represented by third bit information, the bit length corresponding to the third bit information is equal to ceiling(log2N), and N is the number of transmission parameter sets configured by the RRC signaling. Specifically, if N=4, 2 bits are used to indicate the on-demand SSB transmission parameter indication information, for example: 00 indicates the transmission parameter set with index 0; 01 indicates the transmission parameter set with index 1; 10 indicates the transmission parameter set with index 2; and 11 indicates the transmission parameter set with index 3.

[0188] 9. Based on 6 or 7, the method for explicitly indicating the on-demand SSB transmission parameter indication information before and after the terminal completes the indicated operation may also be: indicating through a bitmap, each bit corresponding to a set of transmission parameter sets configured by the RRC signaling, and the required bit length is equal to N, where N is the number of transmission parameter sets configured by the RRC signaling; corresponding to the above-mentioned third information and / or fourth information, indicating the transmission parameter indication information in the following manner: indicating through a bitmap, each bit in the bitmap corresponding to a set of transmission parameter sets configured by the RRC signaling, and the bit length corresponding to the bitmap is equal to N, where N is the number of transmission parameter sets configured by the RRC signaling. Specifically, for example, if N=4, 4 bits are used to indicate which set of transmission parameter sets is used. If the first set is used, the bitmap is represented as: 1000.

[0189] 10. Based on 4, when the first bit of the 2-bit bitmap indicates that the terminal performs L1 measurement or L3 measurement or SCell activation (which can be understood as the first bit is 1), the corresponding measurement behavior of the terminal can be synchronously triggered, and the trigger signaling can explicitly indicate or implicitly trigger the associated measurement configuration and / or corresponding reporting configuration; corresponding to the above-mentioned case where the first bit information is used to indicate that the second network device sends an on-demand synchronization signal block within the first time period, the first bit information is also used to trigger the associated measurement configuration and / or reporting configuration.

[0190] 11. Based on 4, when the second bit of the 2-bit bitmap informs the terminal that the base station will stop sending on-demand SSB after completing the indicated operation (which can be understood as the second bit is 0), the base station may not configure the terminal to complete the indicated operation after the on-demand SSB transmission parameter indication field (corresponding to the above-mentioned second bit information being used to indicate that the second network device does not send an on-demand synchronization signal block within the second time period, and the first signaling does not include the fourth information) or the terminal may ignore the corresponding transmission parameter indication field (corresponding to the above-mentioned fourth information being invalid information).

[0191] 12. Based on any one of items 1 to 11, the trigger signaling may be a Medium Access Control-Control Element (MAC-CE) or a Downlink Control Information (DCI) signaling.

[0192] 13. Based on any one of items 1 to 11, after the terminal reports the L1 or L3-RSRP measurement result during the SCell activation process, it can continue to receive SCell activation signaling, activation signaling of the physical downlink control channel (PDCCH) transmission configuration indication (TCI) status and / or physical downlink shared channel (PDSCH) TCI status, and activation signaling of the channel state information-reference signal (CSI-RS) resource set for CSI measurement; corresponding to the above-mentioned terminal receiving the second signaling sent by the first network device, the second signaling includes at least one of the following: secondary cell SCell activation signaling; physical downlink control channel transmission configuration indication PDCCH TCI state activation signaling; physical downlink shared channel transmission configuration indication PDSCH TCI state activation signaling; activation signaling of the channel state information reference signal CSI-RS resource set for channel state information CSI measurement.

[0193] 14. Based on 13, the CSI-RS resource set used for CSI measurement can be periodic, semi-persistent, or aperiodic.

[0194] The following is a specific example to illustrate this solution.

[0195] Implementation method one:

[0196] Assume that, based on the service conditions of the terminal, the base station needs to trigger the terminal to activate one or more SCells. In one embodiment, when the base station configures the SCell for the terminal through RRC signaling, it configures multiple sets of on-demand SSB transmission parameter sets for each SCell. The transmission parameter sets include the following parameters:

[0197] - subcarrier spacing;

[0198] -SSB period;

[0199] -The time domain position of the SSB in the SSB burst set (indicated by ssb-PositionsInBurst).

[0200] For example, the base station configures multiple on-demand SSB transmission parameter sets for the terminal's SCell_1 through RRC signaling as follows:

[0201] Additionally, trigger signaling may include:

[0202] -On-demand SSB sends the purpose indication bit, indicating the terminal's operation based on the on-demand SSB;

[0203] - A bitmap indicating whether an on-demand SSB is sent before or after L1 / L3-RSRP measurement reporting or SCell activation is completed; corresponds to the above 2-bit bitmap;

[0204] -(2-bit bitmap) corresponds to the transmission parameter indication of the on-demand SSB in the time period.

[0205] For example, when the base station sends an on-demand SSB and issues on-demand SSB trigger signaling to instruct the terminal to activate SCell_1, it is assumed that the trigger signaling is as follows:

[0206] Based on the above, the terminal detects that the sending purpose indication bit in the trigger signaling is "1", then the terminal confirms that the on-demand SSB will be used for the activation of SCell_1. The trigger signaling can be used to synchronously activate the terminal to perform L1 or L3-RSRP measurement based on the on-demand SSB sent by SCell_1, and report the L1 or L3-RSRP measurement results according to the measurement reporting configuration.

[0207] After receiving the L1 or L3-RSRP measurement result report reported by the terminal, the base station sends the activation signaling of SCell_1, and may send PDCCH TCI and / or PDSCH TCI activation signaling, as well as the activation signaling of the CSI-RS resource set for measuring CSI based on the L1 or L3-RSRP measurement result of the terminal. Among them, the SCell activation signaling may be sent before other activation signaling (including PDCCH TCI and / or PDSCH TCI activation signaling, and the activation signaling of the CSI-RS resource set for measuring CSI), or it may be sent at the same time as the other activation signaling. When the SCell activation signaling and the other activation signaling are sent successively, the time interval between them should meet the known cell condition so that this embodiment can obtain the maximum energy saving gain. After receiving all the above activation signaling, the terminal can perform CSI measurement and report based on the indicated CSI-RS resource set to complete the activation operation of the SCell.

[0208] The trigger signaling described above configures only one set of transmission parameter indicators, and the second bit of the bitmap is '1'. Therefore, after the SCell is activated, this set of transmission parameters indicates that on-demand SSBs will continue to be transmitted according to parameter set 2 (i.e., parameter set index - on-demand SSB transmission parameter set number is 2). Prior to SCell activation, on-demand SSB transmission parameters will be transmitted according to the default first configuration - parameter set 0 (i.e., parameter set index - on-demand SSB transmission parameter set number is 0). After the adjustment (i.e., after SCell activation), the on-demand SSB period is adjusted from 5ms (pre-adjustment) to 20ms, and the SSB burst pattern is adjusted from {1,1,1,1,1,1,1,1} to {1,1,0,1,0,0,1,1}. This means that after SCell activation, the third, fifth, and sixth SSBs are not transmitted, while the remaining SSBs are transmitted normally. The specific workflow is shown in Figure 4, where the on-demand SSB activation signaling corresponds to the trigger signaling described above.

[0209] In this embodiment, CSI measurements are performed based on periodic CSI-RS resources. To illustrate the complete workflow, the periodic transmission of on-demand SSBs during the CSI measurement period is not shown. However, it should be noted that on-demand SSBs continue to be periodically transmitted during the CSI measurement period. In this embodiment, because the terminal is aware in advance that the SCell needs to be activated and completes L1 / L3-RSRP measurements based on intensive on-demand SSBs, the SCell to be activated is activated according to the known cell, shortening the SCell activation latency. After the terminal completes SCell activation, the on-demand SSB transmission period is increased, which can reduce network power consumption to a certain extent.

[0210] Implementation method 2:

[0211] Implementation method 2 makes adjustments to the trigger signaling in implementation method 1, wherein the bit indicating whether to send the on-demand SSB after the SCell is activated is configured as '0'. The trigger signaling content is as follows:

[0212] In this embodiment, the base station instructs the terminal to stop sending on-demand SSBs after the SCell is activated. The terminal then ignores the on-demand SSB transmission parameter indication field and no longer searches for or detects on-demand SSBs after the SCell is activated. For other operations, see Embodiment 1 and are not described here in detail. The specific workflow is shown in Figure 5. In this embodiment, the base station stops sending on-demand SSBs after learning that the terminal has completed SCell activation, which can significantly reduce power consumption.

[0213] Implementation method three:

[0214] In the third embodiment, relative to the first embodiment, the indication 1 indicating the transmission parameters of the on-demand SSB is changed in the indication mode. In this embodiment, the bitmap indication mode is adopted (ie, each set of transmission parameters corresponds to one indication bit). The specific trigger signaling content can be as follows:

[0215] The effects and workflow of this implementation are the same as those of implementation 1 and will not be repeated here.

[0216] Implementation method four:

[0217] In the first embodiment, the trigger signaling only flexibly indicates the transmission mode after the SCell is activated. In this embodiment, the trigger signaling can flexibly indicate the transmission mode before and after the SCell is activated. Assume that the trigger signaling is as follows:

[0218] The function of the transmission parameter indication 1 of the trigger signaling is the same as that in the first embodiment, which is used to indicate the transmission mode of the on-demand SSB after the SCell is activated; the transmission parameter indication 2 is used to indicate the transmission mode of the on-demand SSB before the SCell is activated. The workflow of this embodiment can be shown in Figure 6.

[0219] Similarly, when the second bit of the bitmap indicating whether on-demand SSB is sent before and after SCell activation indicates that on-demand SSB will stop being sent after SCell activation (i.e., the second bit of the 2-bit bitmap is 0), the terminal can ignore the content of transmission parameter indication 1 of on-demand SSB, where transmission parameter indication 1 is used for indication after SCell activation and transmission parameter indication 2 is used for indication before SCell activation. The specific workflow is similar to the process in Implementation Method 2 and will not be repeated here.

[0220] Implementation method five:

[0221] This embodiment is relative to the fourth embodiment, in which indication 1 and indication 2 indicating the transmission parameters of the on-demand SSB before and after SCell activation both adopt a bitmap indication method (i.e., each set of transmission parameters corresponds to one indication bit). The specific content of the trigger signaling may be as follows:

[0222] The effects and workflow of this implementation are the same as those of implementation four and will not be repeated here.

[0223] Similarly, when the second bit of the bitmap indicating whether on-demand SSBs are transmitted before and after SCell activation indicates that on-demand SSBs will stop being transmitted after SCell activation, the terminal may ignore the content of on-demand SSB transmission parameter indication 1. The specific workflow is similar to that in Implementation 2 and will not be repeated here.

[0224] Implementation method six:

[0225] This embodiment adjusts the configuration of the on-demand SSB transmission parameter set relative to the first embodiment, wherein the base station configures a set of on-demand SSB transmission parameters for an SCell of the terminal through RRC signaling, and the transmission parameter indication 1 in the trigger signaling can be omitted (the configured set of parameters can be used directly without separate indication). Correspondingly, the trigger signaling content can be as follows:

[0226] Based on the above, after receiving the trigger signaling, the terminal can activate the only set of transmission parameters configured by RRC signaling, and the on-demand SSB before and after SCell activation can use this set of transmission parameters.

[0227] Similarly, when the second bit of the bitmap indicating whether on-demand SSBs are to be sent indicates that the terminal will stop sending on-demand SSBs after the SCell is activated, the terminal may no longer detect or measure on-demand SSBs after the SCell is activated. The effects and workflow of this embodiment are similar to those of embodiment 2 and are not further described here.

[0228] Implementation method seven:

[0229] In this implementation, trigger signaling is used to trigger L1 / L3 measurement. RRC signaling configures multiple sets of on-demand SSB transmission parameter sets for the terminal. Assume that the transmission parameter sets are the same as those in implementation mode 1, and the content of the on-demand SSB trigger signaling is as follows:

[0230] Based on the above, assuming that the terminal detects that the sending purpose indicator bit in the trigger signaling is '0', the terminal confirms that the on-demand SSB will be used for L1 / L3 measurement. The trigger signaling can be used to synchronously activate the L1 / L3 measurement based on the on-demand SSB and report the L1 / L3 measurement results according to the measurement reporting configuration.

[0231] Similarly, the 2-bit bitmap indicates whether the on-demand SSB is sent before and after the L1 / L3 measurement result is reported. In this embodiment, the on-demand SSB is periodically sent before and after the L1 / L3 measurement result is reported. The transmission parameters of the on-demand SSB before the L1 / L3 measurement result is reported can be determined by the first set of multiple sets of transmission parameters configured by RRC signaling by default; the transmission parameters of the on-demand SSB after the L1 / L3 measurement result is reported can be determined by on-demand SSB transmission parameter indication 1. Specifically, in this embodiment, after the L1 / L3 measurement result is reported, the on-demand SSB continues to be sent using the configuration of transmission parameter set 2; the workflow of this embodiment can be shown in Figure 7. In addition, when the second bit of the 2-bit bitmap indicates that the terminal will stop sending the on-demand SSB after the L1 / L3 measurement result is reported, the terminal can ignore the content of the transmission parameter indication 1 in the trigger signaling.

[0232] In addition, the sending parameter indication 1 can also be indicated in a bitmap manner, which will not be repeated here.

[0233] In this implementation, the trigger signaling can also be used to instruct the terminal to perform L1 / L3 measurements only (not only for SCell activation). Based on this, the flexibility of the network device in implementation can be supported.

[0234] Implementation method eight:

[0235] This embodiment can be implemented based on any one of Embodiments 1 to 7. In this embodiment, the base station can use trigger signaling to adjust the transmission parameters of the on-demand SSB that is continuously sent after the SCell activation is completed or the L1 / L3 measurement results are reported. Assume that after the terminal completes the SCell activation in Embodiment 1, it receives trigger signaling 2 sent by the base station again. The content of trigger signaling 2 is as follows:

[0236] Based on the above, when the terminal detects that the first bit of the 2-bit bitmap is 0, the sending purpose indicator bit is no longer valid, and the terminal can ignore the corresponding indication field information; specifically, the purpose of this {0,1} configuration can be used for: the on-demand SSB transmission parameters need to be updated, and the network notifies the terminal of the changes in the SSB transmission parameters; but at this time, the terminal does not need to perform SCell activation or layer 1 / layer 3 measurement, so the sending purpose indicator bit is no longer valid; for example, SCell activation is being activated or has been completed, and the terminal can receive according to the new SSB transmission parameters. As for the purpose of receiving the SSB (the terminal can continue L1 / L3 measurement or SCell activation, or perform other types of measurement, synchronization, etc. according to other instructions), it is not limited here. Among them, when the second bit of the bitmap is 1, the terminal can apply the new on-demand SSB transmission parameters indicated by the transmission parameter indication 1 in the trigger signaling 2. In this implementation, the subcarrier spacing (SCS) and period of the on-demand SSB before and after trigger signaling can remain unchanged, and the transmission pattern of the SSB burst set is adjusted from {1,1,0,1,0,0,1,1} to {1,1,1,1,1,1,1,1,1}, that is, the time domain position of the SSB in the SSB burst set is updated; the terminal can perform time and frequency synchronization operations based on the on-demand SSB. The workflow of this implementation may be shown in Figure 8.

[0237] In another implementation, new transmission parameters may also be reconfigured by RRC signaling and then triggered by on-demand SSB activation signaling. The final effect of this workflow is consistent with the method corresponding to Figure 8 and will not be repeated here.

[0238] In this solution, the base station can send trigger signaling (i.e., on-demand SSB activation signaling) multiple times, but the configuration content in the trigger signaling can be different. According to different contents and pre-agreed rules, the terminal can obtain corresponding instructions; for example, the agreed rule corresponding to whether the 2-bit bitmap of the on-demand SSB is sent is {0, 1}: the destination indication bit is not effective, etc.

[0239] Implementation method nine:

[0240] This embodiment is adjusted relative to the trigger signaling in embodiment 8, wherein the 2-bit bitmap in trigger signaling 2 is configured as {0,0}. At this time, the base station instructs the terminal to stop sending on-demand SSB. The base station may not configure the transmission parameter indication field in the trigger signaling or the UE ignores the corresponding indication field information (i.e., ignores the transmission parameter indication 1 of the on-demand SSB). The transmission destination indication information of the on-demand SSB (corresponding to the transmission destination indication bit) is also not effective. Specifically, the content of trigger signaling 2 can be any of the following forms:

[0241] or

[0242] In this embodiment, the trigger signaling serves to notify the terminal to deactivate the on-demand SSB transmission (corresponding to the dotted box in Figure 9), which can achieve network energy saving while preventing the terminal from still searching or detecting the on-demand SSB, and also has an energy-saving effect on the terminal (similar to the second embodiment); specifically, the workflow of this embodiment can be shown in Figure 9.

[0243] It is to be noted that the relevant contents of the above-mentioned various embodiments can be referred to each other, and the repeated contents will not be repeated here.

[0244] As described above, the solution provided by the embodiment of the present disclosure involves: the content of the trigger signaling and the corresponding determination rules; specifically including: an indication field indicating the purpose of on-demand SSB transmission, an indication field indicating whether to send on-demand SSB before or after L1 / L3 measurement completion or SCell activation, and an indication field of on-demand SSB transmission parameters, as well as the determination rules of each indication field information.

[0245] In summary, the embodiments of the present disclosure provide a method for indicating an on-demand SSB transmission mode, which can use unified signaling to inform the terminal of different transmission purposes (corresponding to the operations that the terminal needs to perform), transmission parameters, and activation or deactivation functions of on-demand SSB, thereby saving signaling overhead and making it possible to shorten the activation delay of SCell, ultimately achieving the energy saving purpose of the network and the terminal. Specifically, it can also be understood that the embodiments of the present disclosure provide a method for indicating on-demand SSB signaling design, by using a unified signaling framework to indicate the operations that the terminal needs to perform, the transmission parameters of on-demand SSB, and the activation or deactivation function of on-demand SSB, etc., thereby saving signaling overhead and allowing the network equipment to flexibly adjust the transmission, termination, and SSB transmission mode of SSB according to the needs of the terminal, and making it possible to shorten the activation delay of SCell, ultimately achieving the energy saving purpose of the network and the terminal.

[0246] The present disclosure also provides an information transmission device, which is a terminal, as shown in FIG10 , including a memory 101, a transceiver 102, and a processor 103.

[0247] The memory 101 is used to store computer programs; the transceiver 102 is used to send and receive data under the control of the processor 103; the processor 103 is used to read the computer program in the memory 101 and perform the following operations:

[0248] Receiving, by the transceiver 102, first signaling sent by a first network device; the first signaling including: first information and second information; the first information being used to instruct the terminal to perform a first operation according to the on-demand synchronization signal block sent by the second network device; and the second information being used to instruct whether the second network device sends an on-demand synchronization signal block before and / or after the terminal completes the first operation;

[0249] receiving, by the transceiver 102, an on-demand synchronization signal block according to the second information;

[0250] Based on the first information, the first operation is performed on the received on-demand synchronization signal block.

[0251] The information transmission device provided by the embodiment of the present disclosure receives the first signaling sent by the first network device; the first signaling includes: first information and second information; the first information is used to indicate the first operation that the terminal needs to perform according to the on-demand synchronization signal block sent by the second network device; the second information is used to indicate whether the second network device sends an on-demand synchronization signal block before and / or after the terminal completes the first operation; according to the second information, the on-demand synchronization signal block is received; according to the first information, the first operation is performed on the received on-demand synchronization signal block; it can support the terminal to know in advance the first operation to be performed and the sending status of the on-demand synchronization signal block, so as to receive SSB in time according to the first signaling and operate based on SSB, which can support shortening the activation delay of SCell; and through the second information, it can support the network to no longer send SSB when there is no demand from the terminal, thereby achieving the purpose of energy saving and avoiding power waste, which is a good solution to the problem that the information transmission scheme for SSB in the related technology may cause a long SCell activation delay and high power consumption.

[0252] Specifically, the transceiver 102 is configured to receive and send data under the control of the processor 103 .

[0253] 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 103 and memory represented by memory 101. 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 102 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. For different user devices, the user interface 104 may also be an interface capable of connecting external or internal devices as required, and the connected devices include but are not limited to a keypad, a display, a speaker, a microphone, a joystick, and the like.

[0254] The processor 103 is responsible for managing the bus architecture and general processing, and the memory 101 can store data used by the processor 103 when performing operations.

[0255] In some embodiments, the processor 103 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). The processor may also adopt a multi-core architecture.

[0256] 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.

[0257] In which, the first signaling also includes: third information and / or fourth information, the third information is the sending parameter indication information corresponding to the sending mode of the on-demand synchronization signal block in the first time period, and the fourth information is the sending parameter indication information corresponding to the sending mode of the on-demand synchronization signal block in the second time period; wherein, the first time period is the time period after the terminal receives the first signaling until the first operation is completed; the second time period refers to the time period after the first operation is completed.

[0258] In the embodiment of the present disclosure, the first operation includes at least one of the following: layer 1 measurement; layer 3 measurement; secondary cell activation.

[0259] The second information includes first bit information and / or second bit information; the first bit information is used to indicate whether the second network device sends an on-demand synchronization signal block within the first time period; the second bit information is used to indicate whether the second network device sends an on-demand synchronization signal block within the second time period.

[0260] In an embodiment of the present disclosure, the sending parameter set indicated by the sending parameter indication information is configured by the first network device through radio resource control RRC signaling; wherein, the sending parameter set includes: subcarrier spacing information, synchronization signal block SSB period information, and at least one item of time domain position information of SSB in the SSB burst set.

[0261] In which, before the first operation is completed, the on-demand synchronization signal block is sent according to the Mth transmission parameter set in the transmission parameter set configured by the RRC signaling, and M is a positive integer; or, before the first operation is completed, the on-demand synchronization signal block is sent according to the transmission parameter set corresponding to the third information.

[0262] In an embodiment of the present disclosure, after the first operation is completed, the on-demand synchronization signal block is sent according to the sending parameter set corresponding to the fourth information.

[0263] The third information and / or the fourth information indicates the sending parameter indication information in at least one of the following ways: (1) indicating by an index of a sending parameter set, the index indicated in the first signaling is represented by a third bit information, the bit length corresponding to the third bit information is equal to ceiling(log2N), and N is the number of sending parameter sets configured by the RRC signaling; (2) indicating by a bit map, each bit in the bit map corresponds to a group of sending parameter sets configured by the RRC signaling, the bit length corresponding to the bit map is equal to N, and N is the number of sending parameter sets configured by the RRC signaling.

[0264] In an embodiment of the present disclosure, when the first bit information is used to indicate that the second network device sends an on-demand synchronization signal block within the first time period, the first bit information is also used to trigger associated measurement configuration and / or reporting configuration; and / or, when the first bit information is used to indicate that the second network device does not send an on-demand synchronization signal block within the first time period, the first information is invalid information, and the starting time of the second time period is the time when the first signaling is received; and / or, when the second bit information is used to indicate that the second network device does not send an on-demand synchronization signal block within the second time period, the first signaling does not include the fourth information, or the fourth information is invalid information.

[0265] The first signaling is media access control element MAC-CE signaling or downlink control information DCI signaling.

[0266] Furthermore, the operation also includes: receiving, through the transceiver, a second signaling sent by the first network device, the second signaling including at least one of the following: secondary cell SCell activation signaling; physical downlink control channel transmission configuration indication PDCCH TCI state activation signaling; physical downlink shared channel transmission configuration indication PDSCH TCI state activation signaling; activation signaling of a channel state information reference signal CSI-RS resource set for channel state information CSI measurement.

[0267] The CSI-RS resource set is periodic, semi-persistent or aperiodic.

[0268] It should be noted here that the above-mentioned device provided in the embodiment of the present disclosure can implement all the method steps implemented in the above-mentioned terminal-side method embodiment, 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.

[0269] The embodiment of the present disclosure further provides an information transmission device, which is a first network device, as shown in FIG11 , including a memory 111 , a transceiver 112 , and a processor 113 :

[0270] The memory 111 is used to store computer programs; the transceiver 112 is used to send and receive data under the control of the processor 13; the processor 113 is used to read the computer program in the memory 111 and perform the following operations:

[0271] A first signaling is sent to the terminal through the transceiver 112; the first signaling includes: first information and second information; the first information is used to indicate the first operation that the terminal needs to perform according to the on-demand synchronization signal block sent by the second network device; the second information is used to indicate whether the second network device sends an on-demand synchronization signal block before and / or after the terminal completes the first operation.

[0272] The information transmission device provided by the embodiment of the present disclosure sends a first signaling to the terminal; the first signaling includes: first information and second information; the first information is used to indicate the first operation that the terminal needs to perform according to the on-demand synchronization signal block sent by the second network device; the second information is used to indicate whether the second network device sends an on-demand synchronization signal block before and / or after the terminal completes the first operation; it can support the terminal to know in advance the first operation that needs to be performed and the sending status of the on-demand synchronization signal block, so as to receive SSB in time according to the first signaling and operate based on SSB, which can support shortening the activation delay of SCell; and through the second information, it can support the network to no longer send SSB when there is no demand from the terminal, thereby achieving the purpose of energy saving and avoiding power waste, which is a good solution to the problem that the information transmission scheme for SSB in the related technology may cause a long SCell activation delay and high power consumption.

[0273] Specifically, the transceiver 112 is configured to receive and send data under the control of the processor 113 .

[0274] In FIG11 , the bus architecture may include any number of interconnected buses and bridges, specifically one or more processors represented by processor 113 and various circuits of memory represented by memory 111. 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 112 may be a plurality of components, i.e., 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, or the like. The processor 113 is responsible for managing the bus architecture and general processing, and the memory 111 may store data used by the processor 113 when performing operations.

[0275] The processor 113 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). The processor may also adopt a multi-core architecture.

[0276] In which, the first signaling also includes: third information and / or fourth information, the third information is the sending parameter indication information corresponding to the sending mode of the on-demand synchronization signal block in the first time period, and the fourth information is the sending parameter indication information corresponding to the sending mode of the on-demand synchronization signal block in the second time period; wherein, the first time period is the time period after the terminal receives the first signaling until the first operation is completed; the second time period refers to the time period after the first operation is completed.

[0277] In the embodiment of the present disclosure, the first operation includes at least one of the following: layer 1 measurement; layer 3 measurement; secondary cell activation.

[0278] The second information includes first bit information and / or second bit information; the first bit information is used to indicate whether the second network device sends an on-demand synchronization signal block within the first time period; the second bit information is used to indicate whether the second network device sends an on-demand synchronization signal block within the second time period.

[0279] In an embodiment of the present disclosure, the sending parameter set indicated by the sending parameter indication information is configured by the first network device through radio resource control RRC signaling; wherein, the sending parameter set includes: subcarrier spacing information, synchronization signal block SSB period information, and at least one item of time domain position information of SSB in the SSB burst set.

[0280] In which, before the first operation is completed, the on-demand synchronization signal block is sent according to the Mth transmission parameter set in the transmission parameter set configured by the RRC signaling, and M is a positive integer; or, before the first operation is completed, the on-demand synchronization signal block is sent according to the transmission parameter set corresponding to the third information.

[0281] In an embodiment of the present disclosure, after the first operation is completed, the on-demand synchronization signal block is sent according to the sending parameter set corresponding to the fourth information.

[0282] The third information and / or the fourth information indicates the sending parameter indication information in at least one of the following ways: (1) indicating by an index of a sending parameter set, the index indicated in the first signaling is represented by a third bit information, the bit length corresponding to the third bit information is equal to ceiling(log2N), and N is the number of sending parameter sets configured by the RRC signaling; (2) indicating by a bit map, each bit in the bit map corresponds to a group of sending parameter sets configured by the RRC signaling, the bit length corresponding to the bit map is equal to N, and N is the number of sending parameter sets configured by the RRC signaling.

[0283] In an embodiment of the present disclosure, when the first bit information is used to indicate that the second network device sends an on-demand synchronization signal block within the first time period, the first bit information is also used to trigger associated measurement configuration and / or reporting configuration; and / or, when the first bit information is used to indicate that the second network device does not send an on-demand synchronization signal block within the first time period, the first information is invalid information, and the starting time of the second time period is the time when the first signaling is received; and / or, when the second bit information is used to indicate that the second network device does not send an on-demand synchronization signal block within the second time period, the first signaling does not include the fourth information, or the fourth information is invalid information.

[0284] The first signaling is media access control element MAC-CE signaling or downlink control information DCI signaling.

[0285] Furthermore, the operation also includes: sending a second signaling to the terminal through the transceiver, the second signaling including at least one of the following: secondary cell SCell activation signaling; physical downlink control channel transmission configuration indication PDCCH TCI state activation signaling; physical downlink shared channel transmission configuration indication PDSCH TCI state activation signaling; activation signaling of the channel state information reference signal CSI-RS resource set for channel state information CSI measurement.

[0286] The CSI-RS resource set is periodic, semi-persistent or aperiodic.

[0287] It should be noted here that the above-mentioned device provided in the embodiment of the present disclosure can implement all the method steps implemented in the above-mentioned first network device side method embodiment, and can achieve the same technical effects. The parts and beneficial effects that are the same as the method embodiment in this embodiment will not be described in detail here.

[0288] The present disclosure also provides an information transmission device, which is applied to a terminal, as shown in FIG12 , and includes:

[0289] The first receiving unit 121 is configured to receive a first signaling sent by a first network device; the first signaling includes: first information and second information; the first information is used to indicate a first operation to be performed by the terminal according to the on-demand synchronization signal block sent by the second network device; the second information is used to indicate whether the second network device sends an on-demand synchronization signal block before and / or after the terminal completes the first operation;

[0290] A second receiving unit 122 is configured to receive an on-demand synchronization signal block according to the second information;

[0291] The first execution unit 123 is configured to perform the first operation on the received on-demand synchronization signal block according to the first information.

[0292] The information transmission device provided by the embodiment of the present disclosure receives a first signaling sent by a first network device; the first signaling includes: first information and second information; the first information is used to indicate the first operation that the terminal needs to perform according to the on-demand synchronization signal block sent by the second network device; the second information is used to indicate whether the second network device sends an on-demand synchronization signal block before and / or after the terminal completes the first operation; according to the second information, the on-demand synchronization signal block is received; according to the first information, the first operation is performed on the received on-demand synchronization signal block; it can support the terminal to know in advance the first operation that needs to be performed and the sending status of the on-demand synchronization signal block, so as to receive SSB in time according to the first signaling and operate based on SSB, which can support shortening the activation delay of SCell; and through the second information, it can support the network to no longer send SSB when there is no demand from the terminal, thereby achieving the purpose of energy saving and avoiding power waste, which is a good solution to the problem that the information transmission scheme for SSB in the related technology may cause a long SCell activation delay and high power consumption.

[0293] In which, the first signaling also includes: third information and / or fourth information, the third information is the sending parameter indication information corresponding to the sending mode of the on-demand synchronization signal block in the first time period, and the fourth information is the sending parameter indication information corresponding to the sending mode of the on-demand synchronization signal block in the second time period; wherein, the first time period is the time period after the terminal receives the first signaling until the first operation is completed; the second time period refers to the time period after the first operation is completed.

[0294] In the embodiment of the present disclosure, the first operation includes at least one of the following: layer 1 measurement; layer 3 measurement; secondary cell activation.

[0295] The second information includes first bit information and / or second bit information; the first bit information is used to indicate whether the second network device sends an on-demand synchronization signal block within the first time period; the second bit information is used to indicate whether the second network device sends an on-demand synchronization signal block within the second time period.

[0296] In an embodiment of the present disclosure, the sending parameter set indicated by the sending parameter indication information is configured by the first network device through radio resource control RRC signaling; wherein, the sending parameter set includes: subcarrier spacing information, synchronization signal block SSB period information, and at least one item of time domain position information of SSB in the SSB burst set.

[0297] In which, before the first operation is completed, the on-demand synchronization signal block is sent according to the Mth transmission parameter set in the transmission parameter set configured by the RRC signaling, and M is a positive integer; or, before the first operation is completed, the on-demand synchronization signal block is sent according to the transmission parameter set corresponding to the third information.

[0298] In an embodiment of the present disclosure, after the first operation is completed, the on-demand synchronization signal block is sent according to the sending parameter set corresponding to the fourth information.

[0299] The third information and / or the fourth information indicates the sending parameter indication information in at least one of the following ways: (1) indicating by an index of a sending parameter set, the index indicated in the first signaling is represented by a third bit information, the bit length corresponding to the third bit information is equal to ceiling(log2N), and N is the number of sending parameter sets configured by the RRC signaling; (2) indicating by a bit map, each bit in the bit map corresponds to a group of sending parameter sets configured by the RRC signaling, the bit length corresponding to the bit map is equal to N, and N is the number of sending parameter sets configured by the RRC signaling.

[0300] In an embodiment of the present disclosure, when the first bit information is used to indicate that the second network device sends an on-demand synchronization signal block within the first time period, the first bit information is also used to trigger associated measurement configuration and / or reporting configuration; and / or, when the first bit information is used to indicate that the second network device does not send an on-demand synchronization signal block within the first time period, the first information is invalid information, and the starting time of the second time period is the time when the first signaling is received; and / or, when the second bit information is used to indicate that the second network device does not send an on-demand synchronization signal block within the second time period, the first signaling does not include the fourth information, or the fourth information is invalid information.

[0301] The first signaling is media access control element MAC-CE signaling or downlink control information DCI signaling.

[0302] Furthermore, the information transmission device also includes: a third receiving unit, used to receive a second signaling sent by the first network device, the second signaling including at least one of the following: secondary cell SCell activation signaling; physical downlink control channel transmission configuration indication PDCCH TCI state activation signaling; physical downlink shared channel transmission configuration indication PDSCH TCI state activation signaling; activation signaling of a channel state information reference signal CSI-RS resource set for channel state information CSI measurement.

[0303] The CSI-RS resource set is periodic, semi-persistent or aperiodic.

[0304] It should be noted here that the above-mentioned device provided in the embodiment of the present disclosure can implement all the method steps implemented in the above-mentioned method embodiment and can achieve the same technical effect. The parts and beneficial effects of this embodiment that are the same as those in the method embodiment will not be described in detail here.

[0305] The present disclosure also provides an information transmission apparatus, which is applied to a first network device, as shown in FIG13 , and includes:

[0306] The first sending unit 131 is used to send a first signaling to the terminal; the first signaling includes: first information and second information; the first information is used to indicate the first operation that the terminal needs to perform according to the on-demand synchronization signal block sent by the second network device; the second information is used to indicate whether the second network device sends an on-demand synchronization signal block before and / or after the terminal completes the first operation.

[0307] The information transmission device provided by the embodiment of the present disclosure sends a first signaling to the terminal; the first signaling includes: first information and second information; the first information is used to indicate the first operation that the terminal needs to perform according to the on-demand synchronization signal block sent by the second network device; the second information is used to indicate whether the second network device sends an on-demand synchronization signal block before and / or after the terminal completes the first operation; it can support the terminal to know in advance the first operation that needs to be performed and the sending status of the on-demand synchronization signal block, so as to receive SSB in time according to the first signaling and operate based on SSB, which can support shortening the activation delay of SCell; and through the second information, it can support the network to no longer send SSB when there is no demand from the terminal, thereby achieving the purpose of energy saving and avoiding power waste, which is a good solution to the problem that the information transmission scheme for SSB in the related technology may cause a long SCell activation delay and high power consumption.

[0308] In which, the first signaling also includes: third information and / or fourth information, the third information is the sending parameter indication information corresponding to the sending mode of the on-demand synchronization signal block in the first time period, and the fourth information is the sending parameter indication information corresponding to the sending mode of the on-demand synchronization signal block in the second time period; wherein, the first time period is the time period after the terminal receives the first signaling until the first operation is completed; the second time period refers to the time period after the first operation is completed.

[0309] In the embodiment of the present disclosure, the first operation includes at least one of the following: layer 1 measurement; layer 3 measurement; secondary cell activation.

[0310] The second information includes first bit information and / or second bit information; the first bit information is used to indicate whether the second network device sends an on-demand synchronization signal block within the first time period; the second bit information is used to indicate whether the second network device sends an on-demand synchronization signal block within the second time period.

[0311] In an embodiment of the present disclosure, the sending parameter set indicated by the sending parameter indication information is configured by the first network device through radio resource control RRC signaling; wherein, the sending parameter set includes: subcarrier spacing information, synchronization signal block SSB period information, and at least one item of time domain position information of SSB in the SSB burst set.

[0312] In which, before the first operation is completed, the on-demand synchronization signal block is sent according to the Mth transmission parameter set in the transmission parameter set configured by the RRC signaling, and M is a positive integer; or, before the first operation is completed, the on-demand synchronization signal block is sent according to the transmission parameter set corresponding to the third information.

[0313] In an embodiment of the present disclosure, after the first operation is completed, the on-demand synchronization signal block is sent according to the sending parameter set corresponding to the fourth information.

[0314] The third information and / or the fourth information indicates the sending parameter indication information in at least one of the following ways: (1) indicating by an index of a sending parameter set, the index indicated in the first signaling is represented by a third bit information, the bit length corresponding to the third bit information is equal to ceiling(log2N), and N is the number of sending parameter sets configured by the RRC signaling; (2) indicating by a bit map, each bit in the bit map corresponds to a group of sending parameter sets configured by the RRC signaling, the bit length corresponding to the bit map is equal to N, and N is the number of sending parameter sets configured by the RRC signaling.

[0315] In an embodiment of the present disclosure, when the first bit information is used to indicate that the second network device sends an on-demand synchronization signal block within the first time period, the first bit information is also used to trigger associated measurement configuration and / or reporting configuration; and / or, when the first bit information is used to indicate that the second network device does not send an on-demand synchronization signal block within the first time period, the first information is invalid information, and the starting time of the second time period is the time when the first signaling is received; and / or, when the second bit information is used to indicate that the second network device does not send an on-demand synchronization signal block within the second time period, the first signaling does not include the fourth information, or the fourth information is invalid information.

[0316] The first signaling is media access control element MAC-CE signaling or downlink control information DCI signaling.

[0317] Furthermore, the information transmission device also includes: a second sending unit, used to send a second signaling to the terminal, the second signaling including at least one of the following: secondary cell SCell activation signaling; physical downlink control channel transmission configuration indication PDCCH TCI state activation signaling; physical downlink shared channel transmission configuration indication PDSCH TCI state activation signaling; activation signaling of the channel state information reference signal CSI-RS resource set for channel state information CSI measurement.

[0318] The CSI-RS resource set is periodic, semi-persistent or aperiodic.

[0319] It should be noted here that the above-mentioned device provided in the embodiment of the present disclosure can implement all the method steps implemented in the above-mentioned method embodiment and can achieve the same technical effect. The parts and beneficial effects of this embodiment that are the same as those in the method embodiment will not be described in detail here.

[0320] 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.

[0321] 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.

[0322] An embodiment of the present disclosure further provides a non-transitory readable storage medium storing a computer program, wherein the computer program is used to enable a processor to execute the above-mentioned information transmission method on the terminal side or the first network device side.

[0323] The non-transitory 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 compact discs (CD), digital video discs (DVD), Blu-ray discs (BD), high-definition versatile discs (HVD), etc.), and semiconductor storage (such as ROM, erasable programmable read-only memory (EPROM), electrically erasable programmable read-only memory (EEPROM), non-volatile memory (NAND (Non-volatile Memory Device) FLASH), solid-state drives (SSD)), etc.

[0324] Among them, the implementation embodiments of the information transmission method on the above-mentioned terminal side or the first network device side are all applicable to the embodiments of the non-transient readable storage medium, and can also achieve the same technical effect.

[0325] The embodiment of the present disclosure also provides a computer program product, including computer instructions. When the computer instructions are executed by a processor, the various processes of the above-mentioned information transmission method embodiment on the terminal side or the first network device side are implemented, and the same technical effect can be achieved. To avoid repetition, they will not be repeated here.

[0326] 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.

[0327] 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.

[0328] 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.

[0329] 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.

[0330] In addition, it should be noted that, in the apparatus and method of the present invention, it is obvious that each component or each step can be decomposed and / or recombined. These decompositions and / or recombinations should be regarded as equivalent schemes of the present invention. Moreover, the steps of performing the above-mentioned series of processing can naturally be performed in chronological order according to the order of description, but it is not necessary to perform them in chronological order, and some steps can be performed in parallel or independently of each other. For those of ordinary skill in the art, it will be understood that all or any steps or components of the method and apparatus of the present invention can be implemented in any computing device (including processors, storage media, etc.) or a network of computing devices in hardware, firmware, software or a combination thereof, which can be achieved by those of ordinary skill in the art using their basic programming skills after reading the description of the present invention.

[0331] It should be noted that it should be understood that the division of the above modules is merely a division of logical functions. In actual implementation, they can be fully or partially integrated into one physical entity, or they can be physically separated. Moreover, these modules can all be implemented in the form of software called by a processing element; or they can all be implemented in the form of hardware; or some modules can be implemented in the form of software called by a processing element, and some modules can be implemented in the form of hardware. For example, a module can be a separately established processing element, or it can be integrated into a chip of the above-mentioned device. In addition, it can also be stored in the memory of the above-mentioned device in the form of program code, and called by a processing element of the above-mentioned device to perform the functions of the above-mentioned module. The implementation of other modules is similar. In addition, these modules can all or partly be integrated together, or they can be implemented independently. The processing element described here can be an integrated circuit with signal processing capabilities. During implementation, each step of the above method or each module above can be completed by an integrated logic circuit of hardware in the processor element or instructions in the form of software.

[0332] For example, each module, unit, sub-unit or sub-module can be one or more integrated circuits configured to implement the above method, such as one or more application specific integrated circuits (ASICs), or one or more microprocessors (digital signal processors, DSPs), or one or more field programmable gate arrays (FPGAs). For another example, when a module above is implemented in the form of a processing element scheduling program code, the processing element can be a general-purpose processor, such as a central processing unit (CPU) or other processor that can call program code. For another example, these modules can be integrated together and implemented in the form of a system-on-a-chip (SOC).

[0333] The terms "first," "second," and the like in the specification and claims of the present disclosure are used to distinguish similar objects and are not necessarily used to describe a specific order or precedence. It should be understood that the terms used in this manner are interchangeable where appropriate, so that the embodiments of the present disclosure described herein may be implemented in a sequence other than that illustrated or described herein. In addition, the terms "including" and "having," and any variations thereof, are intended to cover non-exclusive inclusions. For example, a process, method, system, product, or device that includes a series of steps or units need not be limited to those steps or units explicitly listed, but may include other steps or units that are not explicitly listed or that are inherent to these processes, methods, products, or devices. In addition, the use of "and / or" in the specification and claims to indicate at least one of the connected objects, for example, A and / or B and / or C, means that seven situations are included: A alone, B alone, C alone, both A and B present, both B and C present, both A and C present, and all A, B, and C present. Similarly, the use of "at least one of A and B" in the specification and claims should be understood to mean "A alone, B alone, or both A and B present."

[0334] 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. An information transmission method, applied to a terminal, comprising: receiving a first signaling sent by a first network device; The first signaling includes: first information and second information; the first information is used to indicate the first operation to be performed by the terminal according to the on-demand synchronization signal block sent by the second network device; the second information is used to indicate whether the second network device sends an on-demand synchronization signal block before and / or after the terminal completes the first operation; receiving an on-demand synchronization signal block according to the second information; Based on the first information, the first operation is performed on the received on-demand synchronization signal block.

2. The information transmission method according to claim 1, wherein: The first signaling further includes: third information and / or fourth information, the third information being transmission parameter indication information corresponding to the transmission mode of the on-demand synchronization signal block in the first time period, and the fourth information being transmission parameter indication information corresponding to the transmission mode of the on-demand synchronization signal block in the second time period; The first time period is a time period from when the terminal receives the first signaling to when the first operation is completed; the second time period is a time period after the first operation is completed.

3. The information transmission method according to claim 1 or 2, wherein: The first operation includes at least one of the following: Layer 1 measurement; Layer 3 measurement; The secondary cell is activated.

4. The information transmission method according to claim 2, wherein: The second information includes first bit information and / or second bit information; the first bit information is used to indicate whether the second network device sends an on-demand synchronization signal block within the first time period; the second bit information is used to indicate whether the second network device sends an on-demand synchronization signal block within the second time period.

5. The information transmission method according to claim 2, wherein: The sending parameter set indicated by the sending parameter indication information is configured by the first network device through radio resource control RRC signaling; The sending parameter set includes: subcarrier spacing information, synchronization signal block SSB period information, and at least one of the time domain position information of SSB in the SSB burst set.

6. The information transmission method according to claim 5, wherein: Before the first operation is completed, the on-demand synchronization signal block is sent according to the Mth transmission parameter set in the transmission parameter set configured by the RRC signaling, where M is a positive integer; or, before the first operation is completed, the on-demand synchronization signal block is sent according to the transmission parameter set corresponding to the third information.

7. The information transmission method according to claim 6, wherein: After the first operation is completed, the on-demand synchronization signal block is sent according to the sending parameter set corresponding to the fourth information.

8. The information transmission method according to claim 6 or 7, wherein: The third information and / or the fourth information indicates the sending parameter indication information in at least one of the following ways: Indicating by sending an index of a parameter set, the index indicated in the first signaling being represented by a third bit of information, the bit length corresponding to the third bit of information being equal to ceiling(log2N), where N is the number of sending parameter sets configured by the RRC signaling; The indication is performed through a bit map, where each bit in the bit map corresponds to a set of transmission parameter sets configured by the RRC signaling, and the bit length corresponding to the bit map is equal to N, where N is the number of transmission parameter sets configured by the RRC signaling.

9. The information transmission method according to claim 4, wherein: In a case where the first bit information is used to indicate that the second network device sends an on-demand synchronization signal block within the first time period, the first bit information is further used to trigger associated measurement configuration and / or reporting configuration; And / or, when the first bit information is used to indicate that the second network device does not send an on-demand synchronization signal block within the first time period, the first information is invalid information, and the start time of the second time period is the time when the first signaling is received; And / or, when the second bit information is used to indicate that the second network device does not send an on-demand synchronization signal block within the second time period, the first signaling does not include the fourth information, or the fourth information is invalid information.

10. The information transmission method according to claim 1, wherein: The first signaling is media access control element MAC-CE signaling or downlink control information DCI signaling.

11. The information transmission method according to claim 1 or 3, further comprising: Receive second signaling sent by the first network device, where the second signaling includes at least one of the following: SCell activation signaling; Physical downlink control channel transmission configuration indication PDCCH TCI state activation signaling; Physical downlink shared channel transmission configuration indication PDSCH TCI state activation signaling; Activation signaling of a channel state information reference signal (CSI-RS) resource set used for channel state information (CSI) measurement.

12. The information transmission method according to claim 11, wherein: The CSI-RS resource set is periodic, semi-persistent or aperiodic.

13. An information transmission method, applied to a first network device, comprising: Sending a first signaling to the terminal; The first signaling includes: first information and second information; the first information is used to indicate the first operation that the terminal needs to perform according to the on-demand synchronization signal block sent by the second network device; the second information is used to indicate whether the second network device sends an on-demand synchronization signal block before and / or after the terminal completes the first operation.

14. The information transmission method according to claim 13, wherein: The first signaling further includes: third information and / or fourth information, the third information being transmission parameter indication information corresponding to the transmission mode of the on-demand synchronization signal block in the first time period, and the fourth information being transmission parameter indication information corresponding to the transmission mode of the on-demand synchronization signal block in the second time period; The first time period is a time period from when the terminal receives the first signaling to when the first operation is completed; the second time period is a time period after the first operation is completed.

15. The information transmission method according to claim 13 or 14, wherein: The first operation includes at least one of the following: Layer 1 measurement; Layer 3 measurement; The secondary cell is activated.

16. The information transmission method according to claim 14, wherein: The second information includes first bit information and / or second bit information; the first bit information is used to indicate whether the second network device sends an on-demand synchronization signal block within the first time period; the second bit information is used to indicate whether the second network device sends an on-demand synchronization signal block within the second time period.

17. The information transmission method according to claim 14, wherein: The sending parameter set indicated by the sending parameter indication information is configured by the first network device through radio resource control RRC signaling; The sending parameter set includes: subcarrier spacing information, synchronization signal block SSB period information, and at least one of the time domain position information of SSB in the SSB burst set.

18. The information transmission method according to claim 17, wherein: Before the first operation is completed, the on-demand synchronization signal block is sent according to the Mth transmission parameter set in the transmission parameter set configured by the RRC signaling, where M is a positive integer; or, before the first operation is completed, the on-demand synchronization signal block is sent according to the transmission parameter set corresponding to the third information.

19. The information transmission method according to claim 18, wherein: After the first operation is completed, the on-demand synchronization signal block is sent according to the sending parameter set corresponding to the fourth information.

20. The information transmission method according to claim 18 or 19, wherein: The third information and / or the fourth information indicates the sending parameter indication information in at least one of the following ways: Indicating by sending an index of a parameter set, the index indicated in the first signaling being represented by a third bit of information, the bit length corresponding to the third bit of information being equal to ceiling(log2N), where N is the number of sending parameter sets configured by the RRC signaling; The indication is performed through a bit map, where each bit in the bit map corresponds to a set of transmission parameter sets configured by the RRC signaling, and the bit length corresponding to the bit map is equal to N, where N is the number of transmission parameter sets configured by the RRC signaling.

21. The information transmission method according to claim 16, wherein: In a case where the first bit information is used to indicate that the second network device sends an on-demand synchronization signal block within the first time period, the first bit information is further used to trigger associated measurement configuration and / or reporting configuration; And / or, when the first bit information is used to indicate that the second network device does not send an on-demand synchronization signal block within the first time period, the first information is invalid information, and the start time of the second time period is the time when the first signaling is received; And / or, when the second bit information is used to indicate that the second network device does not send an on-demand synchronization signal block within the second time period, the first signaling does not include the fourth information, or the fourth information is invalid information.

22. The information transmission method according to claim 13, wherein: The first signaling is media access control element MAC-CE signaling or downlink control information DCI signaling.

23. The information transmission method according to claim 13, further comprising: Sending second signaling to the terminal, where the second signaling includes at least one of the following: SCell activation signaling; Physical downlink control channel transmission configuration indication PDCCH TCI state activation signaling; Physical downlink shared channel transmission configuration indication PDSCH TCI state activation signaling; Activation signaling of a channel state information reference signal (CSI-RS) resource set used for channel state information (CSI) measurement.

24. The information transmission method according to claim 23, wherein: The CSI-RS resource set is periodic, semi-persistent or aperiodic.

25. An information transmission device, which is a terminal, comprising a memory, a transceiver, and a processor: a memory for storing computer programs; a transceiver for transmitting and receiving data under the control of the processor; A processor is configured to read the computer program in the memory and perform the following operations: Receiving, by the transceiver, first signaling sent by a first network device; the first signaling comprising: first information and second information; the first information being used to instruct the terminal to perform a first operation according to an on-demand synchronization signal block sent by the second network device; and the second information being used to instruct whether the second network device sends an on-demand synchronization signal block before and / or after the terminal completes the first operation; receiving, by the transceiver, an on-demand synchronization signal block according to the second information; Based on the first information, the first operation is performed on the received on-demand synchronization signal block.

26. The information transmission device according to claim 25, wherein: The first signaling further includes: third information and / or fourth information, the third information being transmission parameter indication information corresponding to the transmission mode of the on-demand synchronization signal block in the first time period, and the fourth information being transmission parameter indication information corresponding to the transmission mode of the on-demand synchronization signal block in the second time period; The first time period is a time period from when the terminal receives the first signaling to when the first operation is completed; the second time period is a time period after the first operation is completed.

27. The information transmission device according to claim 25 or 26, wherein: The first operation includes at least one of the following: Layer 1 measurement; Layer 3 measurement; The secondary cell is activated.

28. The information transmission device according to claim 26, wherein: The second information includes first bit information and / or second bit information; the first bit information is used to indicate whether the second network device sends an on-demand synchronization signal block within the first time period; the second bit information is used to indicate whether the second network device sends an on-demand synchronization signal block within the second time period.

29. The information transmission device according to claim 26, wherein: The sending parameter set indicated by the sending parameter indication information is configured by the first network device through radio resource control RRC signaling; The sending parameter set includes: subcarrier spacing information, synchronization signal block SSB period information, and at least one of the time domain position information of SSB in the SSB burst set.

30. The information transmission device according to claim 29, wherein: Before the first operation is completed, the on-demand synchronization signal block is sent according to the Mth transmission parameter set in the transmission parameter set configured by the RRC signaling, where M is a positive integer; or, before the first operation is completed, the on-demand synchronization signal block is sent according to the transmission parameter set corresponding to the third information.

31. The information transmission device according to claim 30, wherein: After the first operation is completed, the on-demand synchronization signal block is sent according to the sending parameter set corresponding to the fourth information.

32. The information transmission device according to claim 30 or 31, wherein: The third information and / or the fourth information indicates the sending parameter indication information in at least one of the following ways: Indicating by sending an index of a parameter set, the index indicated in the first signaling being represented by a third bit of information, the bit length corresponding to the third bit of information being equal to ceiling(log2N), where N is the number of sending parameter sets configured by the RRC signaling; The indication is performed through a bit map, where each bit in the bit map corresponds to a set of transmission parameter sets configured by the RRC signaling, and the bit length corresponding to the bit map is equal to N, where N is the number of transmission parameter sets configured by the RRC signaling.

33. The information transmission device according to claim 28, wherein: In a case where the first bit information is used to indicate that the second network device sends an on-demand synchronization signal block within the first time period, the first bit information is further used to trigger associated measurement configuration and / or reporting configuration; And / or, when the first bit information is used to indicate that the second network device does not send an on-demand synchronization signal block within the first time period, the first information is invalid information, and the start time of the second time period is the time when the first signaling is received; And / or, when the second bit information is used to indicate that the second network device does not send an on-demand synchronization signal block within the second time period, the first signaling does not include the fourth information, or the fourth information is invalid information.

34. The information transmission device according to claim 25, wherein: The first signaling is media access control element MAC-CE signaling or downlink control information DCI signaling.

35. The information transmission device according to claim 25 or 27, wherein: The operations further include: receiving, by the transceiver, second signaling sent by the first network device, where the second signaling includes at least one of the following: SCell activation signaling; Physical downlink control channel transmission configuration indication PDCCH TCI state activation signaling; Physical downlink shared channel transmission configuration indication PDSCH TCI state activation signaling; Activation signaling of a channel state information reference signal (CSI-RS) resource set used for channel state information (CSI) measurement.

36. The information transmission device according to claim 35, wherein: The CSI-RS resource set is periodic, semi-persistent or aperiodic.

37. An information transmission device, the information transmission device being a first network device, comprising a memory, a transceiver, and a processor: a memory for storing computer programs; a transceiver for transmitting and receiving data under the control of the processor; A processor is configured to read the computer program in the memory and perform the following operations: A first signaling is sent to the terminal through the transceiver; the first signaling includes: first information and second information; the first information is used to indicate the first operation that the terminal needs to perform according to the on-demand synchronization signal block sent by the second network device; the second information is used to indicate whether the second network device sends an on-demand synchronization signal block before and / or after the terminal completes the first operation.

38. The information transmission device according to claim 37, wherein: The first signaling further includes: third information and / or fourth information, the third information being transmission parameter indication information corresponding to the transmission mode of the on-demand synchronization signal block in the first time period, and the fourth information being transmission parameter indication information corresponding to the transmission mode of the on-demand synchronization signal block in the second time period; The first time period is a time period from when the terminal receives the first signaling to when the first operation is completed; the second time period is a time period after the first operation is completed.

39. The information transmission device according to claim 37 or 38, wherein: The first operation includes at least one of the following: Layer 1 measurement; Layer 3 measurement; The secondary cell is activated.

40. The information transmission device according to claim 38, wherein The second information includes first bit information and / or second bit information; the first bit information is used to indicate whether the second network device sends an on-demand synchronization signal block within the first time period; the second bit information is used to indicate whether the second network device sends an on-demand synchronization signal block within the second time period.

41. The information transmission device according to claim 38, wherein: The sending parameter set indicated by the sending parameter indication information is configured by the first network device through radio resource control RRC signaling; The sending parameter set includes: subcarrier spacing information, synchronization signal block SSB period information, and at least one of the time domain position information of SSB in the SSB burst set.

42. The information transmission device according to claim 41, wherein: Before the first operation is completed, the on-demand synchronization signal block is sent according to the Mth transmission parameter set in the transmission parameter set configured by the RRC signaling, where M is a positive integer; or, before the first operation is completed, the on-demand synchronization signal block is sent according to the transmission parameter set corresponding to the third information.

43. The information transmission device according to claim 42, wherein: After the first operation is completed, the on-demand synchronization signal block is sent according to the sending parameter set corresponding to the fourth information.

44. The information transmission device according to claim 42 or 43, wherein: The third information and / or the fourth information indicates the sending parameter indication information in at least one of the following ways: Indicating by sending an index of a parameter set, the index indicated in the first signaling being represented by a third bit of information, the bit length corresponding to the third bit of information being equal to ceiling(log2N), where N is the number of sending parameter sets configured by the RRC signaling; The indication is performed through a bit map, where each bit in the bit map corresponds to a set of transmission parameter sets configured by the RRC signaling, and the bit length corresponding to the bit map is equal to N, where N is the number of transmission parameter sets configured by the RRC signaling.

45. The information transmission device according to claim 40, wherein: In a case where the first bit information is used to indicate that the second network device sends an on-demand synchronization signal block within the first time period, the first bit information is further used to trigger associated measurement configuration and / or reporting configuration; And / or, when the first bit information is used to indicate that the second network device does not send an on-demand synchronization signal block within the first time period, the first information is invalid information, and the start time of the second time period is the time when the first signaling is received; And / or, when the second bit information is used to indicate that the second network device does not send an on-demand synchronization signal block within the second time period, the first signaling does not include the fourth information, or the fourth information is invalid information.

46. ​​The information transmission device according to claim 37, wherein: The first signaling is media access control element MAC-CE signaling or downlink control information DCI signaling.

47. The information transmission device according to claim 37, wherein: The operations further include: Sending, by the transceiver, second signaling to the terminal, where the second signaling includes at least one of the following: SCell activation signaling; Physical downlink control channel transmission configuration indication PDCCH TCI state activation signaling; Physical downlink shared channel transmission configuration indication PDSCH TCI state activation signaling; Activation signaling of a channel state information reference signal (CSI-RS) resource set used for channel state information (CSI) measurement.

48. The information transmission device according to claim 47, wherein: The CSI-RS resource set is periodic, semi-persistent or aperiodic.

49. An information transmission device, applied to a terminal, characterized in that: include: A first receiving unit, configured to receive a first signaling sent by a first network device; The first signaling includes: first information and second information; the first information is used to indicate the first operation to be performed by the terminal according to the on-demand synchronization signal block sent by the second network device; the second information is used to indicate whether the second network device sends an on-demand synchronization signal block before and / or after the terminal completes the first operation; A second receiving unit, configured to receive an on-demand synchronization signal block according to the second information; The first execution unit is used to perform the first operation on the received on-demand synchronization signal block according to the first information.

50. An information transmission device, applied to a first network device, characterized in that: include: A first sending unit, configured to send a first signaling to a terminal; The first signaling includes: first information and second information; the first information is used to indicate the first operation that the terminal needs to perform according to the on-demand synchronization signal block sent by the second network device; the second information is used to indicate whether the second network device sends an on-demand synchronization signal block before and / or after the terminal completes the first operation.

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

52. A computer program product comprising computer instructions, wherein when the computer instructions are executed by a processor, the steps of the information transmission method according to any one of claims 1 to 24 are implemented.

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