Method and apparatus for triggering cell to send SSB and / or SIB, and device

Abstract

The present application relates to the technical field of communications, and discloses a method and apparatus for triggering a cell to send a synchronization signal block (SSB) and / or a system information block (SIB), and a device. The method in embodiments of the present application comprises: a terminal sends a first signal to a second cell; and the terminal performs a target operation on the basis of first information coming from a first cell and / or the second cell, wherein the first signal is used for triggering the second cell to perform adjustment related to an SSB and / or an SIB, and the first cell and the second cell are different cells.

Description

Method, device and equipment for triggering a cell to send SSB and / or SIB

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application claims priority to Chinese Patent Application No. 202410055214.2 filed in China on January 12, 2024, the entire contents of which are incorporated herein by reference. Technical Field

[0003] The present application belongs to the field of communication technology, and specifically relates to a method, apparatus, and device for triggering a cell to send an SSB and / or SIB. Background Art

[0004] In the relevant technology, when the network side sends a synchronization signal block (SSB), the terminal will calculate the position of the control resource set 0 (CORESET 0) based on the SSB subcarrier offset (ssb-SubcarrierOffset) and other parameters contained in the master system information block (MIB) of the physical broadcast channel (PBCH) carried in the SSB, and then use the system information radio network temporary identifier (SI-RNTI) in the type 0 common search space (CSS) corresponding to CORESET 0 to blindly detect the scheduling information of the remaining minimum system information (RMSI). However, in the on-demand SSB (on-demand SIB) scenario, the SIB may not be sent for energy saving. Therefore, in the energy-saving scenario, the terminal itself does not need to blindly detect the scheduling information of the SIB.

[0005] Regarding the solution where the terminal sends an uplink signal to trigger the energy-saving cell to send a system information block (SIB), the behavior of the terminal after sending the uplink signal and the behavior of the network after receiving the signal are not yet defined, so the terminal may not be able to accurately receive the SSB and / or SIB. Summary of the Invention

[0006] The embodiments of the present application provide a method, apparatus, and device for triggering a cell to send SSB and / or SIB, which are used to solve the problem that a terminal cannot accurately receive SSB and / or SIB.

[0007] In a first aspect, a method for triggering a cell to send an SSB and / or SIB is provided, the method being performed by a terminal, the method comprising:

[0008] The terminal sends a first signal to the second cell;

[0009] The terminal performs a target operation according to the first information from the first cell and / or the second cell;

[0010] The first signal is used to trigger the second cell to perform adjustments related to a synchronization signal block (SSB) and / or a system information block (SIB), and the first cell and the second cell are different cells;

[0011] The target operation includes at least one of the following:

[0012] receiving, at a first location, an SSB and / or SIB sent by the second cell, where the first location is determined according to the first information or agreed upon by a protocol;

[0013] receiving, in a first direction, an SSB and / or SIB sent by the second cell, where the first direction is a direction corresponding to an SSB index carried by the first signal feedback information;

[0014] receiving, in a second direction, an SSB and / or SIB sent by the second cell, where the second direction is a direction corresponding to the SSB associated with the timing of sending the first signal;

[0015] Start monitoring a type 0 physical downlink control channel (PDCCH) associated with a target SSB, where the target SSB is the SSB associated with the random access channel Occasion (RO) during which the first signal is sent;

[0016] Using the system information radio network temporary identifier (SI-RNTI) in the Type 0 common search space (CSS) corresponding to control resource set 0 (CORESET 0) to blindly detect the remaining minimum system information (RMSI) scheduling information;

[0017] Blind detection of downlink control information 1_0 (DCI 1_0) in the type 0 CSS corresponding to control resource set 0.

[0018] receiving first signal feedback information at a second location, where the second location is determined according to a configuration of the first signal or agreed upon by a protocol;

[0019] Skip detecting DCI scrambled by random access RNTI;

[0020] Detecting DCI scrambled by random access RNTI;

[0021] resending the first signal under a first condition, where the first condition includes: the terminal does not receive a second contention-based random access message Msg2 within a random access response (Random Access Response, RAR) time window;

[0022] Not sending a Physical Uplink Shared Channel (PUSCH) transmission scheduled by an RAR uplink grant after receiving a Physical Downlink Shared Channel (PDSCH) carrying an RAR message;

[0023] After receiving Msg2, the third message Msg3 based on contention-based random access is not sent;

[0024] Receive on-demand SIBs in Type 1 CSS;

[0025] Receiving an on-demand SIB in a target search space, where the target search space is a search space dedicated to receiving the on-demand SIB;

[0026] Determining validity of the RO of the second cell according to time division duplex (TDD) configuration information of the second cell, where the TDD configuration information is derived from the first cell;

[0027] An effective uplink timing for sending the first signal is determined according to TDD configuration information of the second cell, where the TDD configuration information originates from the first cell.

[0028] In a second aspect, a method for triggering a cell to send an SSB and / or SIB is provided, the method being performed by a second cell, the method including:

[0029] The second cell receives a first signal sent by the terminal; the first signal is used to trigger the second cell to perform SSB and / or SIB related adjustments;

[0030] The second cell performs the SSB and / or SIB related adjustment.

[0031] In a third aspect, a method for triggering a cell to send an SSB and / or SIB is provided, the method being performed by a first cell, the method including:

[0032] The first cell sends first information to the terminal, and the first information is used by the terminal to perform a target operation after sending a first signal to the second cell; the first signal is used to trigger the second cell to perform adjustments related to the synchronization signal block SSB and / or system information block SIB.

[0033] In a fourth aspect, a device for triggering a cell to send an SSB and / or SIB is provided, which is applied to a terminal and includes:

[0034] A first transceiver unit, configured to send a first signal to a second cell;

[0035] a first processing unit, configured to perform a target operation according to first information from the first cell and / or the second cell;

[0036] The first signal is used to trigger the second cell to perform SSB and / or SIB-related adjustments, and the first cell and the second cell are different cells;

[0037] The target operation includes at least one of the following:

[0038] receiving, at a first location, an SSB and / or SIB sent by the second cell, where the first location is determined according to the first information or agreed upon by a protocol;

[0039] receiving, in a first direction, an SSB and / or SIB sent by the second cell, where the first direction is a direction corresponding to an SSB index carried by the first signal feedback information;

[0040] receiving, in a second direction, an SSB and / or SIB sent by the second cell, where the second direction is a direction corresponding to the SSB associated with the timing of sending the first signal;

[0041] Start monitoring a type 0 PDCCH associated with a target SSB, where the target SSB is the SSB associated with the RO that sends the first signal;

[0042] Use SI-RNTI to blindly detect RMSI scheduling information in the type 0 CSS corresponding to control resource set 0;

[0043] Blind detection of DCI 1_0 in the type 0 CSS corresponding to control resource set 0;

[0044] receiving first signal feedback information at a second location, where the second location is determined according to a configuration of the first signal or agreed upon by a protocol;

[0045] Skip detecting DCI scrambled by random access RNTI;

[0046] Detecting DCI scrambled by random access RNTI;

[0047] resending the first signal under a first condition, where the first condition includes: the terminal does not receive a second contention-based random access message Msg2 within the RAR time window;

[0048] Do not send a PUSCH transmission scheduled by an RAR uplink grant after receiving a PDSCH carrying an RAR message;

[0049] After receiving Msg2, the third message Msg3 based on contention-based random access is not sent;

[0050] Receive on-demand SIBs in Type 1 CSS;

[0051] Receiving an on-demand SIB in a target search space, where the target search space is a search space dedicated to receiving the on-demand SIB;

[0052] Determining validity of the RO of the second cell according to time division duplex (TDD) configuration information of the second cell, where the TDD configuration information is derived from the first cell;

[0053] An effective uplink timing for sending the first signal is determined according to TDD configuration information of the second cell, where the TDD configuration information originates from the first cell.

[0054] In a fifth aspect, a device for triggering a cell to send an SSB and / or SIB is provided, which is applied to a second cell and includes:

[0055] The second transceiver unit is configured to receive a first signal sent by the terminal; the first signal is used to trigger the second cell to perform SSB and / or SIB-related adjustments,

[0056] The second processing unit is used to perform the SSB and / or SIB related adjustments.

[0057] In a sixth aspect, a device for triggering a cell to send an SSB and / or SIB is provided, which is applied to a first cell and includes:

[0058] The fifth transceiver unit is used to send first information to the terminal, and the first information is used for the terminal to perform the target operation after sending the first signal to the second cell; the first signal is used to trigger the second cell to perform adjustments related to the synchronization signal block SSB and / or system information block SIB.

[0059] In a seventh aspect, a terminal is provided, comprising a processor and a memory, wherein the memory stores a program or instruction that can be run on the processor, and when the program or instruction is executed by the processor, the steps of the method described in the first aspect are implemented.

[0060] In an eighth aspect, a terminal is provided, including a processor and a communication interface, wherein the communication interface is configured to send a first signal to a second cell; the processor is configured to perform a target operation based on first information from the first cell and / or the second cell; wherein the first signal is configured to trigger the second cell to perform adjustments related to a synchronization signal block (SSB) and / or a system information block (SIB), and the first cell and the second cell are different cells;

[0061] The target operation includes at least one of the following:

[0062] receiving, at a first location, an SSB and / or SIB sent by the second cell, where the first location is determined according to the first information or agreed upon by a protocol;

[0063] receiving, in a first direction, an SSB and / or SIB sent by the second cell, where the first direction is a direction corresponding to an SSB index carried by the first signal feedback information;

[0064] receiving, in a second direction, an SSB and / or SIB sent by the second cell, where the second direction is a direction corresponding to the SSB associated with the timing of sending the first signal;

[0065] Start monitoring a type 0 physical downlink control channel PDCCH associated with a target SSB, where the target SSB is the SSB associated with the random access opportunity RO during which the first signal is sent;

[0066] Using the system information radio network temporary identifier (SI-RNTI) in the type 0 common search space (CSS) corresponding to the control resource set 0 to blindly detect the remaining minimum system information (RMSI) scheduling information;

[0067] Blind detection of downlink control information DCI 1_0 in type 0 CSS corresponding to control resource set 0;

[0068] receiving first signal feedback information at a second location, where the second location is determined according to a configuration of the first signal or agreed upon by a protocol;

[0069] Skip detecting DCI scrambled by random access RNTI;

[0070] Detecting DCI scrambled by random access RNTI;

[0071] sending the first signal again under a first condition, where the first condition includes: the terminal does not receive the second contention-based random access message Msg2 within the random access response RAR time window;

[0072] Not sending a Physical Uplink Shared Channel (PUSCH) transmission scheduled by an RAR uplink grant after receiving a Physical Downlink Shared Channel (PDSCH) carrying an RAR message;

[0073] After receiving Msg2, the third message Msg3 based on contention-based random access is not sent;

[0074] Receive on-demand SIBs in Type 1 CSS;

[0075] Receiving an on-demand SIB in a target search space, where the target search space is a search space dedicated to receiving the on-demand SIB;

[0076] Determining validity of the RO of the second cell according to time division duplex (TDD) configuration information of the second cell, where the TDD configuration information is derived from the first cell;

[0077] An effective uplink timing for sending the first signal is determined according to TDD configuration information of the second cell, where the TDD configuration information originates from the first cell.

[0078] In the ninth aspect, a network side device is provided, which is a second cell. The network side device includes a processor and a memory, and the memory stores programs or instructions that can be run on the processor. When the program or instructions are executed by the processor, the steps of the method described in the second aspect are implemented.

[0079] In the tenth aspect, a network side device is provided, which is a second cell, including a processor and a communication interface, wherein the communication interface is used to receive a first signal sent by the terminal; the first signal is used to trigger the second cell to perform SSB and / or SIB related adjustments; and the processor is used to perform the SSB and / or SIB related adjustments.

[0080] In the eleventh aspect, a network side device is provided, which is a cell, and the network side device includes a processor and a memory, and the memory stores programs or instructions that can be run on the processor, and when the program or instructions are executed by the processor, the steps of the method described in the third aspect are implemented.

[0081] In the twelfth aspect, a network side device is provided, which is a second cell, including a processor and a communication interface, wherein the communication interface is used to send first information to the terminal, and the first information is used for the terminal to perform the target operation after sending the first signal to the second cell; the first signal is used to trigger the second cell to perform adjustments related to the synchronization signal block SSB and / or system information block SIB.

[0082] In the thirteenth aspect, a readable storage medium is provided, on which a program or instruction is stored. When the program or instruction is executed by a processor, the steps of the method described in the first aspect are implemented, or the steps of the method described in the second aspect are implemented, or the steps of the method described in the third aspect are implemented.

[0083] In the fourteenth aspect, a communication system is provided, including: a terminal and a network side device, wherein the terminal can be used to execute the steps of the method described in the first aspect, and the network side device can be used to execute the steps of the method described in the second aspect or the third aspect.

[0084] In the fifteenth aspect, a chip is provided, which includes a processor and a communication interface, the communication interface and the processor are coupled, and the processor is used to run programs or instructions to implement the method as described in the first aspect, or the method as described in the second aspect, or the method as described in the third aspect.

[0085] In the sixteenth aspect, a computer program / program product is provided, which is stored in a storage medium, and the program / program product is executed by at least one processor to implement the steps of the method for triggering a cell to send SSB and / or SIB as described in the first aspect, or implement the steps of the method for triggering a cell to send SSB and / or SIB as described in the second aspect, or implement the steps of the method for triggering a cell to send SSB and / or SIB as described in the third aspect.

[0086] In an embodiment of the present application, the UE behavior after the UE sends the first signal and the direction of the SIB sent by the network side are provided. The direction of the SIB is related to the RO of the UE sending the first signal, which can avoid the network side from sending the SIB in all directions and improve the accuracy of the UE receiving the SIB. The present application can carry the SIB transmission status information of the target cell in the SSB to help the UE determine whether the target cell can be triggered to send the SIB by sending the first signal. BRIEF DESCRIPTION OF THE DRAWINGS

[0087] FIG1 is a block diagram of a wireless communication system applicable to embodiments of the present application;

[0088] FIG2 is a schematic diagram of the association between SSB and RO according to an embodiment of the present application;

[0089] FIG3 is a flowchart of a method for triggering a cell to send an SSB and / or SIB according to an embodiment of the present application;

[0090] FIG4 is a schematic diagram of a mapping relationship between SSB and RO according to an embodiment of the present application;

[0091] FIG5 is a second schematic diagram of the mapping relationship between SSB and RO according to an embodiment of the present application;

[0092] FIG6 is a third schematic diagram of the mapping relationship between SSB and RO according to an embodiment of the present application;

[0093] FIG7 is a fourth schematic diagram of the mapping relationship between SSB and RO according to an embodiment of the present application;

[0094] FIG8 is a fifth schematic diagram of the mapping relationship between SSB and RO according to an embodiment of the present application;

[0095] FIG9 is a schematic diagram of a process of receiving an SIB by a terminal according to an embodiment of the present application;

[0096] FIG10 is a second schematic diagram of a process of receiving a SIB by a terminal according to an embodiment of the present application;

[0097] FIG11 is a second flow chart of a method for triggering a cell to send an SSB and / or SIB according to an embodiment of the present application;

[0098] FIG12 is a third flow chart of a method for triggering a cell to send an SSB and / or SIB according to an embodiment of the present application;

[0099] FIG13 is a structural diagram of a device for triggering a cell to send an SSB and / or SIB according to an embodiment of the present application;

[0100] FIG14 is a second structural diagram of an apparatus for triggering a cell to send an SSB and / or SIB according to an embodiment of the present application;

[0101] FIG15 is a third structural diagram of an apparatus for triggering a cell to send an SSB and / or SIB according to an embodiment of the present application;

[0102] FIG16 is a schematic structural diagram of a communication device according to an embodiment of the present application;

[0103] FIG17 is a schematic structural diagram of a terminal according to an embodiment of the present application;

[0104] FIG18 is a schematic structural diagram of a network-side device according to an embodiment of the present application. DETAILED DESCRIPTION

[0105] The following will be combined with the accompanying drawings in the embodiments of this application to clearly describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field are within the scope of protection of this application.

[0106] The terms "first", "second", etc. in this application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the terms used in this way are interchangeable where appropriate, so that the embodiments of the present application can be implemented in an order other than those illustrated or described herein, and the objects distinguished by "first" and "second" are generally of the same type, and do not limit the number of objects, for example, the first object can be one or more. In addition, "or" in this application represents at least one of the connected objects. For example, "A or B" covers three options, namely, Option 1: including A but not including B; Option 2: including B but not including A; Option 3: including both A and B. The character " / " generally indicates that the objects associated before and after are in an "or" relationship.

[0107] The term "indication" in this application can be either a direct indication (or explicit indication) or an indirect indication (or implicit indication). A direct indication can be understood as the sender explicitly informing the receiver of specific information, the operation to be performed, or the requested result, etc. in the instruction sent; an indirect indication can be understood as the receiver determining the corresponding information based on the instruction sent by the sender, or making a judgment and determining the operation to be performed or the requested result, etc. based on the judgment result.

[0108] It is worth noting that the technology described in the embodiments of the present application is not limited to the Long Term Evolution (LTE) / LTE-Advanced (LTE-A) system, but can also be used in other wireless communication systems, such as Code Division Multiple Access (CDMA), Time Division Multiple Access (TDMA), Frequency Division Multiple Access (FDMA), Orthogonal Frequency Division Multiple Access (OFDMA), Single-carrier Frequency-Division Multiple Access (SC-FDMA) or other systems. The terms "system" and "network" in the embodiments of the present application are often used interchangeably, and the technology described can be used for the systems and radio technologies mentioned above, as well as for other systems and radio technologies. The following description describes a New Radio (NR) system for illustrative purposes, and NR terminology is used in most of the following description, but these technologies can also be applied to systems other than NR systems, such as 6th generation (6G) systems. th Generation, 6G) communication system.

[0109] FIG1 is a block diagram of a wireless communication system applicable to an embodiment of the present application. The wireless communication system includes a terminal 11 and a network-side device 12. The terminal 11 may be a mobile phone, a tablet computer (Tablet Personal Computer), a laptop computer (Laptop Computer), a notebook computer, a personal digital assistant (PDA), a handheld computer, a netbook, an ultra-mobile personal computer (UMPC), a mobile internet device (MID), an augmented reality (AR), a virtual reality (VR) device, a robot, a wearable device (Wearable Device), an aircraft (Flight Vehicle), a vehicle-mounted device (VUE), a ship-mounted device, a pedestrian user equipment (PUE), a smart home (home appliances with wireless communication capabilities, such as refrigerators, televisions, washing machines, or furniture), a game console, a personal computer (PC), an ATM, or a self-service machine, or other terminal-side devices. Wearable devices include: smart watches, smart bracelets, smart headphones, smart glasses, smart jewelry (smart bracelets, smart bracelets, smart rings, smart necklaces, smart anklets, smart anklets, etc.), smart wristbands, smart clothing, etc. Among them, the vehicle-mounted device can also be called a vehicle-mounted terminal, a vehicle-mounted controller, a vehicle-mounted module, a vehicle-mounted component, a vehicle-mounted chip or a vehicle-mounted unit, etc. It should be noted that the specific type of the terminal 11 is not limited in the embodiment of the present application. The network side device 12 may include an access network device or a core network device, wherein the access network device may also be called a radio access network (Radio Access Network, RAN) device, a radio access network function or a radio access network unit. The access network device may include a base station, a wireless local area network (WLAN) access point (AS) or a wireless fidelity (WiFi) node, etc.Among them, the base station can be referred to as Node B (NB), Evolved Node B (eNB), the next generation Node B (gNB), New Radio Node B (NR Node B), access point, Relay Base Station (RBS), Serving Base Station (SBS), Base Transceiver Station (BTS), radio base station, radio transceiver, Basic Service Set (BSS), Extended Service Set (ESS), Home Node B (HNB), Home Evolved Node B (home evolved Node B), Transmission Reception Point (TRP) or other appropriate terms in the field. As long as the same technical effect is achieved, the base station is not limited to specific technical vocabulary. It should be noted that in the embodiment of the present application, only the base station in the NR system is used as an example for introduction, and the specific type of the base station is not limited.

[0110] When describing the embodiments of the present application, some concepts used in the following description are first explained.

[0111] 1. Random Access Channel (RACH)

[0112] (1) SSB to RO mapping rules in 5G NR:

[0113] The configuration parameters for the Physical Random Access Channel (PRACH) resources and SSB-RO are configured in the System Information Block (SIB1). In NR, a cell can configure multiple frequency division multiplexed (FDM) PRACH transmission opportunities (ROs) at a single PRACH transmission time location. The number of ROs that can be FDMed at a given time can be: {1, 2, 4, 8}, which is configured and determined by the higher-layer parameter msg1-FDM.

[0114] The random access preamble can only be transmitted on the time domain resources configured by the parameter PRACHConfigurationIndex and the frequency domain resources configured by the parameter Msg1-FDM. RA ∈{0,1,…,M-1}, where M is equal to the high-level parameter Msg1-FDM. At the time of initial access, the PRACH frequency domain resource n RA The PRACH frequency domain resource n is numbered in ascending order starting from the lowest frequency RO resource in the initial active uplink bandwidth part. Otherwise, the PRACH frequency domain resource n is RA The RO resources are numbered in ascending order starting from the lowest frequency resource within the active uplink bandwidth part. For example, in Figure 2, the number of FDM ROs at a time is 8 (msg1-FDM=8), and the RO resources are numbered from RO#0 to RO#7 in ascending order of frequency.

[0115] In NR, there is an association between the RO and the actual SSB transmitted. The RO is associated with the SSB in the frequency domain (from low frequency to high frequency) and then in the time domain. One SSB may be associated with multiple consecutive ROs, or multiple SSBs may be associated with one RO (in this case, different SSBs correspond to different preambles), which is configured by the network through the parameter "ssb-perRACH-OccasionAndCB-PreamblesPerSSB".

[0116] The base station can use different beams to send different SSBs. The number of SSBs is configured by the "ssb-PositionsInBurst" parameter. For FR2, the maximum number of SSBs is 64. Based on the strength of the received downlink beam / SSB, the UE selects the RO / "RO and preamble combination" associated with the SSB with better signal to send Msg1. In this way, the network-side device can determine the SSB selected by the UE based on the RO / "RO and preamble combination" of the received preamble. Msg2 is then sent on the downlink beam corresponding to the SSB to ensure the reception quality of the downlink signal.

[0117] Before sending PRACH, the UE first selects an SSB with RSRP higher than the threshold based on the Reference Signal Received Power (RSRP) of the received beam (or SSB). If the RSRP of multiple SSBs is higher than the threshold, the terminal can select any SSB with RSRP higher than the threshold. If there is no SSB with RSRP higher than the threshold, the UE selects an SSB based on the implementation.

[0118] Based on the network (NW) configuration, the UE obtains the correspondence between the SSB and the RO. After selecting the SSB, the RO corresponding to the selected SSB is used as the RO for sending PRACH / Preamble / Msg1. If the selected SSB is associated with multiple ROs, the terminal can select one of the ROs for sending PRACH / Preamble / Msg1.

[0119] 2. SIB1

[0120] (1) Type 0-PDCCH common search space set (CSS set):

[0121] This search space set is used to monitor SIB1 system messages, corresponding to the DCI scrambled with SI-RNTI in the primary cell in the Master Cell Group (MCG), configured by "IE:pdcch-ConfigSIB1" in the signaling MIB or by "IE:serachSpaceZero" in the signaling PDCCH-ConfigCommon, or by "IE:searchSpaceZero" or "searchSpaceSIB1" in the signaling PDCCH-ConfigCommon.

[0122] (2)SSB and CORESET 0

[0123] There are three types of SSB and CORESET 0 multiplexing patterns: Pattern 1 is time division multiplexing (CORESET 0 frequency domain range includes SSB), Pattern 2 and Pattern 3 are frequency division multiplexing (CORESET 0 and SSB are in the same system frame). The difference between Pattern 2 and Pattern 3 is that in the time domain, CORESET 0 of Pattern 2 is located before SSB. After the UE decodes the SSB, it can know the scheduling information of the blind detection SIB1 at the specific time-frequency resource location.

[0124] (3)SIB1

[0125] After detecting the PBCH, the terminal has completed downlink synchronization. Before performing uplink synchronization, the terminal needs to further receive SIB1 (System Information Block Type 1) to obtain configuration information related to uplink synchronization.

[0126] SIB1 is transmitted in PDSCH and scheduled through PDCCH, and the resource allocation range of PDSCH is within the frequency range of the initial BWP; specifically:

[0127] 1) PDCCH time-frequency domain resource allocation for SIB1:

[0128] a: The PDCCH of SIB1 is mapped in the CSS of type 0-PDCCH;

[0129] b: In the frequency domain, the CSS of Type 0-PDCCH is mapped in CORESET 0, and the frequency range of CORESET 0 is exactly the same as the initial bandwidth part (Bandwidth Part, BWP);

[0130] c: The lower 4 bits of the signaling "pdcch-ConfigSIB1" carried in the PBCH indicate the configuration of type 0-PDCCH CSS, and the upper 4 bits indicate the configuration of CORESET 0;

[0131] 2) PDSCH time-frequency domain resource allocation for SIB1:

[0132] a: Conventional PDSCH uses the TDRA table configured by Radio Resource Control (RRC), and the index in the table is indicated by the PDCCCH for time domain resource allocation. However, since the RRC connection has not been established when the UE receives the SIB1 PDSCH, a default TDRA needs to be defined.

[0133] b: The three multiplexing modes of CORESET0 and SSB correspond to three default Time Domain Resource Assignment (TDRA) tables;

[0134] c: In the frequency domain, SIB1 allocates frequency domain resources within the initial access bandwidth and uses resource allocation type 1.

[0135] 3. SSB

[0136] (1) Cell-defining / non cell-defining SSB:

[0137] In NR systems, the cell-defining SSB (CD-SSB) is the SSB associated with SIB1 (also known as RMSI). SIB1 defines the scheduling information for other SIBs and contains information for initial terminal access. The frequency location of the CD-SSB must be on the system synchronization grid.

[0138] A non-cell-defining SSB (NCD-SSB) is defined as an SSB that is not associated with SIB1. The NCD-SSB can be used for secondary cell synchronization and can also be used as a measurement signal for terminal configuration. The NCD-SSB does not necessarily need to be located on the system synchronization grid. If the NCD-SSB is located on the system synchronization grid, it can indicate the GSFN of the CD-SSB through the information it carries.

[0139] (2) Subcarrier offset value k SSB :

[0140] The SSB subcarrier offset information field (ssb-SubcarrierOffset) is used to indicate the value k of the subcarrier offset between SSB and CORESET#0. SSB The offset range includes 0-23 and 0-11 subcarriers, which are represented by 5 bits (4 bits are indicated by ssb-SubcarrierOffset and the highest bit is indicated by the PBCH physical layer (Physical, PHY) layer) and 4 bits respectively, corresponding to the frequency range FR1 and FR2. 4 bits can represent 16 values. SSB Only 12 bits (0 to 11) are used, and 5 bits can represent 32 values. SSB Only 24 (0 to 23) are used. To avoid wasting the remaining values, 3GPP uses k SSB Divided into two parts: normal k SSB (In FR1, k SSB is 0 to 23; in FR2, k SSB 0 to 11) and abnormal k SSB .

[0141] In FR1, if k SSB >23, or, in FR2, if k SSB >11, all belong to abnormal k SSB , both indicate that the SSB does not have Type 0 CSS, that is, the current SSB is not associated with SIB1. However, the abnormal kSSB The role is not limited to this. In order to allow UE to find the Cell Defining SSB as quickly as possible, abnormal k SSB It can also be used as an index, combined with the RMSIPDCCH configuration, to indicate the global synchronization channel number (GSCN) of the next SSB.

[0142] When k SSB >23(FR1) or k SSB >11(FR2), some values ​​in this range can be used to indicate the GSCN of CD-SSB. As shown in Table 1 and Table 2:

[0143] Table 1: FR1

[0144] Table 2: FR2

[0145] Among them, the value k SSB =31(FR1) or k SSB =15(FR2), the UE considers that there is no CD-SSB within a certain GSCN range.

[0146] Below, in combination with the accompanying drawings, the method, apparatus and equipment for triggering a cell to send SSB and / or SIB provided in the embodiments of the present application are described in detail through some embodiments and their application scenarios.

[0147] As shown in FIG3 , an embodiment of the present application provides a method for triggering a cell to send an SSB and / or SIB, which is performed by a terminal. The method includes:

[0148] Step 301: The terminal sends a first signal to the second cell;

[0149] Step 302: The terminal performs a target operation according to first information from the first cell and / or the second cell;

[0150] The first signal is used to trigger the second cell to perform adjustments related to a synchronization signal block (SSB) and / or a system information block (SIB), and the first cell and the second cell are different cells;

[0151] The target operation includes at least one of the following:

[0152] (1) receiving the SSB and / or SIB sent by the second cell at a first location, where the first location is determined based on the first information or agreed upon by a protocol; the first information may directly or indirectly indicate the location at which the SSB and / or SIB is received, or the location at which the SSB and / or SIB is received may be agreed upon by a protocol.

[0153] (2) receiving the SSB and / or SIB sent by the second cell in a first direction, where the first direction is the direction corresponding to the SSB index (Index) carried by the first signal feedback information; in this case, the terminal receives the first signal feedback information and receives the SSB and / or SIB successfully triggered by the first signal according to the direction corresponding to the SSB index carried therein.

[0154] (3) receiving the SSB and / or SIB sent by the second cell in a second direction, where the second direction is the direction corresponding to the SSB associated with the timing of sending the first signal; in this case, the terminal receives the SSB and / or SIB successfully triggered by the first signal according to the direction corresponding to the SSB associated with the timing of sending the first signal.

[0155] (4) Start monitoring the Type 0 physical downlink control channel PDCCH associated with the target SSB, where the target SSB is the SSB associated with the random access opportunity RO that sends the first signal; in this case, the terminal can start monitoring the Type 0 PDCCH associated with the SSB corresponding to the RO that sends the first signal.

[0156] (5) Using the system information radio network temporary identifier (SI-RNTI) to blindly detect the scheduling information of the remaining minimum system information (RMSI) in the Type 0 common search space (CSS) corresponding to control resource set 0 (CORESET 0); in this embodiment, the terminal begins to use the SI-RNTI to blindly detect the scheduling information of the RMSI (SIB1) in the Type 0 CSS corresponding to CORESET 0.

[0157] (6) Blind detection of downlink control information DCI 1_0 in the Type 0 CSS corresponding to CORESET 0. In this embodiment, the terminal may blindly detect DCI 1_0 in the Type 0 CSS corresponding to CORESET 0.

[0158] (7) receiving feedback information of the first signal at a second location, where the second location is determined according to the configuration of the first signal or agreed upon by a protocol; in this embodiment, the terminal may monitor the feedback of the first signal according to the configuration information of the first signal or according to the location agreed upon by the protocol.

[0159] (8) Skip detecting the DCI scrambled by the random access RNTI; in this case, the terminal does not detect the DCI scrambled by the random access RNTI. Optionally, the terminal does not monitor the second message Msg2 based on contention-based random access.

[0160] (9) Detecting the DCI scrambled by the random access RNTI; in this case, optionally, the terminal monitors the second message Msg2 based on contention random access.

[0161] (10) The first signal is resent under a first condition, where the first condition includes: the terminal does not receive the second contention-based random access message Msg2 within the random access response (RAR) time window. In this embodiment, if the terminal does not receive Msg2 within the RAR time window, the first signal is resent. Optionally, the time window starts from the first symbol of the earliest CORESET of the PDCCH configured as the Type 1-PDCCH CSS set by the terminal.

[0162] (11) After receiving the physical downlink shared channel PDSCH carrying the RAR message, the physical uplink shared channel PUSCH transmission scheduled by the RAR uplink grant (UL Grant) is not sent; in this embodiment, after receiving the PDSCH with the RAR message (Msg2), the terminal will not send the PUSCH transmission (Msg3) scheduled by the RAR UL Grant.

[0163] (12) After receiving Msg2, the third message Msg3 based on contention-based random access is not sent; in this embodiment, the terminal does not send Msg3 after receiving Msg2.

[0164] (13) Receiving on-demand SIBs in the Type 1 CSS. In this case, the terminal receives on-demand SIBs in the Type 1 CSS, e.g., it receives SIBs instead of RARs.

[0165] (14) Receiving an on-demand SIB in a target search space, where the target search space is a search space dedicated to receiving the on-demand SIB. In this embodiment, the terminal receives the on-demand SIB in the search space dedicated to on-demand SIB reception.

[0166] (15) Determine the validity of the RO of the second cell based on the time division duplex (TDD) configuration information of the second cell, where the TDD configuration information is derived from the first cell. In this embodiment, the terminal may determine the validity of the RO of the second cell based on the second cell TDD configuration derived from the first cell.

[0167] (16) Determine a valid uplink occasion for sending the first signal based on the TDD configuration information of the second cell, where the TDD configuration information is derived from the first cell. In this embodiment, the terminal may determine a valid uplink occasion for sending the first signal based on the TDD configuration of the second cell derived from the first cell.

[0168] In this embodiment, after sending a first signal, the terminal may perform a target operation based on first information, where the first information originates from a first cell and / or a second cell, where the first cell and the second cell are two different cells. The first signal is used to trigger one or more second cells to perform SSB and / or SIB-related adjustments. After sending the first signal, the terminal performs one or more of the aforementioned target operations.

[0169] Optionally, the SIB includes SIB1. In an embodiment of the present application, the SIB may be SIB1, and the SIB1 may be an on-demand SIB1.

[0170] Optionally, the first signal may be an uplink wake-up signal (WUS), and the first signal may be in the form of a preamble sequence. In the case where the first signal is the WUS, the first signal feedback information is WUS feedback.

[0171] In an embodiment of the present application, a terminal sends a first signal to a second cell to trigger the second cell to adjust the SSB and / or SIB. After sending the first signal, the terminal can perform a target operation based on the first information from the first cell and / or the second cell, thereby ensuring accurate reception of the SSB and / or SIB sent by the second cell.

[0172] As an optional embodiment, the adjustment related to the synchronization signal block SSB and / or the system information block SIB includes:

[0173] Change from not sending SSB to sending SSB;

[0174] Change from not sending SIB to sending SIB;

[0175] Adjust from sending long-cycle SSB to sending short-cycle SSB; for example, adjust from sending long-cycle SSB to sending short-cycle SSB with a period of 20ms;

[0176] Adjust from sending long-period SIB to sending short-period SIB;

[0177] Adjustment from sending only the primary synchronization signal (PSS) and the secondary synchronization signal (SSS) to sending SSB. For example, SSB that only sends PSS and SSS can be called light SSB. The adjustment of the second cell can be from sending light SSB to sending normal SSB.

[0178] In this embodiment, the first signal sent by the terminal is used to trigger the second cell to perform SSB and / or SIB-related adjustments. After receiving the first signal, the second cell may perform one or more of the above adjustment operations.

[0179] As an optional embodiment, the relationship between the first cell and the second cell includes one of the following:

[0180] The first cell and the second cell are intra-frequency cells;

[0181] The first cell and the second cell are inter-frequency cells;

[0182] The first cell and the second cell belong to the same cell group;

[0183] The first cell and the second cell belong to the same timing advance group (TAG);

[0184] The first cell and the second cell belong to the same tracking area.

[0185] In this embodiment, the first cell and the second cell may be intra-frequency cells or inter-frequency cells, or the first cell and the second cell may belong to the same cell group or the same TAG, or may belong to the same intra.

[0186] As an optional embodiment, before executing the target operation, the method further includes:

[0187] Acquire second information, where the second information is carried by an SSB sent by the second cell;

[0188] Determine, according to the second information, a transmission status of the SIB of the second cell, where the transmission status of the SIB of the second cell includes at least one of the following:

[0189] Send SIB status;

[0190] The state of not sending SIB;

[0191] Support on-demand sending of SIB mode;

[0192] On-demand SIB mode is not supported.

[0193] In this embodiment, before performing the target operation, the terminal determines the transmission status of the SIB of the second cell based on the second information. Optionally, the second information may belong to the first information, and the second information may be carried by the SSB of the second cell. The transmission status may also be referred to as a transmission mode.

[0194] Optionally, the manner in which the SSB of the second cell carries the second information includes at least one of the following:

[0195] (1) Indicated by a synchronization sequence included in the SSB of the second cell; for example, the second information may be carried in a synchronization sequence included in the SSB sent by the second cell.

[0196] (2) Indicated by an existing target field in the MIB carried by the PBCH of the SSB of the second cell;

[0197] Optionally, there is a one-to-one mapping relationship between the specific value of the existing target domain of the MIB carried by the PBCH and the transmission status of the SIB. SSB When k is a specific value, it indicates that the second cell is in a state of not sending SIB1, or in a state of sending SIB1 normally, or in a sending mode supporting on-demand triggering of SIB1; or SSB When it is a specific value and PDCCH-ConfigSIB1 (pdcch-ConfigSIB1) is a specific value, it indicates that the second cell is in a state of not sending SIB1, or is in a state of normally sending SIB1, or is in a sending mode supporting on-demand triggering of SIB1.

[0198] In this embodiment, the second information can be carried in the SSB sent by the second cell and indicated by an existing target domain in the message contained in the SSB, such as by the MIB carried by the PBCH contained in the SSB. Optionally, the existing domains in the MIB include one or more of the following: system frame number (systemFrameNumber), common subcarrier spacing (subCarrierSpacingCommon), SSB subcarrier offset (ssb-SubcarrierOffset), DMRS-Type A-Position (dmrs-TypeA-Position), PDCCH-Configuration SIB1 (pdcch-ConfigSIB1), prohibited resident cells (cellBarred), intra-frequency reselection (intraFreqReselection), spare domain (spare). The second information can be indicated when any of the above existing domains is a specific value.

[0199] For example: ssb-SubcarrierOffset (k SSB ) to indicate the energy-saving state of the second cell, when k SSB When it is equal to a specific value, the UE considers the SIB transmission state / SIB transmission mode of the second cell as follows:

[0200] Send SIB normally;

[0201] No SIB is sent;

[0202] Supports on-demand SIB mode.

[0203] The specific value is, for example, a reserved value, such as k SSB =30 (FR1) or kSSB=14 (FR2)), indicating that the network side is now in on-demand SIB1 mode and is not sending SIB1.

[0204] (3) Indicated by a newly added payload of the synchronization sequence included in the SSB of the second cell;

[0205] In this embodiment, an additional payload can be added to the synchronization sequence included in the SSB of the second cell to indicate the energy saving state of the second cell, for example: indicating that the second cell is in the normal SIB sending state, the non-SIB sending state, or supports the on-demand SIB mode.

[0206] (4) Indicated by a new payload in the PBCH of the SSB of the second cell; In this embodiment, an additional payload may be added to the PBCH included in the SSB of the second cell to indicate the energy-saving state of the second cell.

[0207] (5) Implicit indication through a PBCH demodulation reference signal (DMRS) included in the SSB of the second cell; wherein a mapping relationship exists between the PBCH DMRS sequence and the transmission status of the SIB or SSB. In this embodiment, the transmission status of the SIB and / or SSB can be implicitly indicated through the PBCH DMRS in the SSB transmitted by the second cell.

[0208] The implicit indication method is, for example: if the UE receives DMRS sequence A, DMRS sequence A indicates that the second cell is in a state of not sending SIB; if the UE receives DMRS sequence B, DMRS sequence B indicates that the second cell is in a state of sending SIB; the corresponding relationship of the above implicit indication is configured to the UE in advance by the network side, or agreed in advance by the protocol.

[0209] The following example illustrates a method of indicating the transmission status of the SIB and / or SSB of the second cell through one or more fields.

[0210] For example, certain indication information (such as the second information) is carried by the SSB of the second cell to indicate the transmission status of the SIB and / or SSB of the second cell. This indication information can be carried in the synchronization sequence or PBCH. For example, one or more fields in the related art are reinterpreted and used as a specific value to verify the transmission status of the SIB and / or SSB.

[0211] The information fields included in the traditional MIB (obtained from the PBCH of the SSB) and the available values ​​of each information field are as follows:

[0212] When a field in the above information field is a specific value, it can be used to implicitly indicate the transmission status of the SIB and / or SSB of the second cell. For example, when SFN is a specific value, such as all 0s or all 1s, it is used to represent whether the second cell has sent SIB1 / SSB normally; or SFN is 7 bits, compared with the 6 bits in the current protocol, the lowest / highest bits added in this embodiment can be used to indicate whether the second cell has sent SIB1 / SSB normally.

[0213] In addition, ssb-SubcarrierOffset can also be set to a special value to indicate the SIB1 and / or SSB transmission status of the second cell. SSB It is 5 bits in FR1 and 4 bits in FR2. For FR1, 0-29 have corresponding meanings, and for FR2, 0-13 have corresponding meanings. In order to avoid conflicts with the above-mentioned existing mechanisms, it can be set. When ssb-SubcarrierOffset is a specific value, such as FR1, when the ssb-SubcarrierOffset included in the SSB sent by the second cell is 30, it means that the second cell is in the state of normally sending SIB1, and when ssb-SubcarrierOffset is 31, it means that the second cell is in the state of sending SIB1 on demand (that is, SIB1 is not sent now); such as FR2, when the ssb-SubcarrierOffset included in the SSB sent by the second cell is 14, it means that the second cell is in the state of sending SIB1 on demand (that is, SIB1 is not sent now), as shown in Table 1 and Table 2.

[0214] The sending status of the SIB and / or SSB can also be implicitly indicated by the PBCH DMRS in the SSB sent by the second cell, or a combination of the above methods can be used to indicate the sending status of the SIB and / or SSB.

[0215] Optionally, you can also use k SSB Indicates whether the cell supports the on-demand SIB1 mode.

[0216] For example: For FR1, when k SSB =30, and the value of RMSI-PDCCH-config(CORESET0+searchspace0) or pdcch-ConfigSIB1 is a specific value, it can be used to indicate the current status of the cell sending SSB sending SIB1.

[0217] Among them, k SSB =30+RMSI-PDCCH-config=0, indicating that the cell sending SSB does not send SIB1;

[0218] k SSB =30+RMSI-PDCCH-config=1, indicating that the cell sending SSB is in the normal state of sending SIB1;

[0219] k SSB =30+RMSI-PDCCH-config=2, indicating that the cell sending the SSB is a cell that supports on-demand SIB1;

[0220] In the above embodiment, due to the value of RMSI-PDCCH-config (or pdcch-ConfigSIB1) and k SSB Binding is used to indicate the state of sending SIB1 of the target cell, so pdcch-ConfigSIB1 cannot be used to indicate the configuration information of CORESET0 and search space 0 (searchspace0), and since the target cell is in the on-demand SIB1 state, that is, the state of not sending SIB1 when saving energy, the UE itself does not need to obtain the configuration information of CORESET0 and searchspace0 (that is, there is no need to monitor the scheduling information of SIB1 according to the configuration of CORESET0 and searchspace0). However, when the first signal is triggered successfully, the UE needs to start receiving SIB1. At this time, the UE can obtain the CORESET0 and searchspace0 configuration information from the first information.

[0221] As an optional embodiment, the first information includes at least one of the following:

[0222] Second cell identifier;

[0223] The second cell supports or does not support on-demand SIB transmission; that is, whether the second cell supports on-demand SIB is indicated in the first information.

[0224] The second cell supports or does not support on-demand SSB; that is, whether the second cell supports on-demand SIB is indicated in the first information.

[0225] TDD configuration of the second cell (TDD configuration);

[0226] Unified Access Control (UAC) configuration;

[0227] Prohibit cell resident bar configuration;

[0228] Trigger the first signal configuration of SSB transmission;

[0229] A first signal configuration for triggering SSB adaptation;

[0230] A first signal configuration triggering SIB transmission;

[0231] A first signal configuration triggering SIB adjustment;

[0232] Sending condition information of the first signal;

[0233] The SIB configuration of the second cell after being successfully triggered by the first signal; the successful triggering by the first signal may refer to successfully triggering the second cell to perform SSB and / or SIB-related adjustments, for example: triggering the second cell to adjust from not sending SSB to sending SSB, triggering the second cell to adjust from sending long-cycle SSB to sending short-cycle SSB.

[0234] The SSB configuration of the second cell after being successfully triggered by the first signal.

[0235] In this embodiment, the first information corresponds to one or more second cells. The first information can be displayed and configured by the first cell or the second cell through broadcast information, or can be defaulted to be the same as the corresponding information content of the first cell. Optionally, the first signal configuration is configured for each cell, or for each cell group.

[0236] Optionally, the SIB configuration of the second cell after being successfully triggered by the first signal includes at least one of the following:

[0237] SIB sending period; refers to the period during which the second cell sends SIB after being successfully triggered;

[0238] Control resource set 0 configuration; refers to the CORESET0 configuration in which the second cell sends the SIB after being successfully triggered;

[0239] Search space 0 (searchspace0) configuration: refers to the search space 0 configuration in which the second cell sends the SIB after being successfully triggered;

[0240] Type 0 PDCCH configuration; refers to the type 0 PDCCH configuration in which the second cell sends the SIB after being successfully triggered;

[0241] SIB monitoring window; refers to the monitoring window in which the terminal monitors the SIB after being successfully triggered. The terminal can monitor the SIB within the monitoring window;

[0242] The time length for transmitting the SIB refers to the time length for the second cell to send the SIB after being successfully triggered;

[0243] Number of times the SIB is sent; refers to the number of times the second cell sends the SIB after being successfully triggered;

[0244] Number of SIB transmission cycles; refers to the number of cycles in which the second cell transmits SIB after being successfully triggered;

[0245] The frequency domain information of the SIB may include: the frequency domain starting point position, the number of frequency bands occupied by the frequency domain, the bandwidth size of the signal, etc. The frequency domain starting point position is, for example, the carrier, BWP, or frequency band position.

[0246] Time domain information of the SIB may include the time domain position (such as the offset relative to the synchronization / broadcast channel), the size or period of the monitoring window, the number of time domain repetitions and the mode, etc.

[0247] The sending mode of the SIB.

[0248] Optionally, the SIB transmission mode includes at least one of the following:

[0249] Normal SIB transmission mode: This is the traditional SIB transmission mode compared to the simplified SIB transmission mode.

[0250] Simplify the SIB mode; for example, only send core configurations such as RACH;

[0251] Aggregate SIB transmission mode; for example, there is no time gap between multiple SIBs;

[0252] The SIB mode is sent over a long period of time, that is, the period for sending SIB1 is longer.

[0253] Optionally, the SSB configuration of the second cell after being successfully triggered by the first signal includes at least one of the following:

[0254] The frequency of transmitting SSB; refers to the frequency of transmitting SSB by the second cell after being successfully triggered by the first signal; it may also refer to the period of transmitting SSB by the second cell after being successfully triggered, the number of SSBs transmitted in each period, etc.;

[0255] The time domain index or time domain position for sending the SSB refers to one or more time domain indexes or positions at which the second cell sends the SSB after being successfully triggered;

[0256] An SSB listening window refers to a listening window in which the terminal monitors the SSB sent by the second cell after being successfully triggered by the first signal. The terminal can monitor the SSB sent by the second cell within the listening window;

[0257] The length of time for transmitting the SSB refers to the length of time for transmitting the SSB of the second cell after being successfully triggered by the first signal;

[0258] Number of SSB transmissions; refers to the number of SSB transmissions of the second cell after being successfully triggered by the first signal;

[0259] The number of SSB transmission cycles refers to the number of SSB transmission cycles of the second cell after being successfully triggered by the first signal;

[0260] The time domain relationship between the triggered SSB and the first carrier SSB; the first carrier is a carrier that can be used as a time-frequency reference synchronization for the second cell; refers to the time domain relationship between the SSB sent by the second cell after being successfully triggered by the first signal and the first carrier;

[0261] The frequency domain relationship between the triggered SSB and the first carrier SSB; refers to the frequency domain relationship between the SSB sent by the second cell after being successfully triggered by the first signal and the first carrier;

[0262] The spatial relationship between the triggered SSB and the first carrier SSB; refers to the spatial relationship between the SSB sent by the second cell after being successfully triggered by the first signal and the first carrier;

[0263] The time domain position of sending the first SSB; refers to the time domain position at which the second cell starts sending the first SSB after being successfully triggered by the first signal, for example: sending it in the latest SSB period of X time slots (slot) / symbols (symbol) after the sending time of the trigger signal (first signal).

[0264] SSB transmission mode.

[0265] Optionally, the SSB transmission mode includes at least one of the following:

[0266] Normal SSB transmission mode; it is the traditional SSB transmission mode relative to the simplified SSB transmission mode;

[0267] Simplify the SSB mode; for example, only send PSS and SSS;

[0268] Aggregate SSB transmission mode; for example, there is no time domain gap between multiple SSBs;

[0269] Long-cycle SSB transmission mode; for example, the second cell has a longer cycle for sending SSB.

[0270] As an optional embodiment, the first signal configuration includes at least one of the following:

[0271] (1) Monitoring the configuration of first signal feedback information; the first signal feedback information is such as the PDCCH of msg2;

[0272] Optionally, the configuration of monitoring the first signal feedback information includes at least one of the following:

[0273] Monitoring a control resource set configuration for first signal feedback information;

[0274] Monitoring a search space configuration for first signal feedback information;

[0275] Monitoring a PDCCH configuration for first signal feedback information;

[0276] A time window for monitoring first signal feedback information;

[0277] Monitor the starting position of the first signal feedback information.

[0278] (2) Transmission configuration of the first signal.

[0279] Optionally, the sending configuration of the first signal includes at least one of the following:

[0280] 1) Signal synchronization reference configuration; may include at least one of the following: SSB of the first carrier, Channel State Information Reference Signal (CSI-RS), Phase Tracking Reference Signal (TRS), Global Positioning System (GPS) timing, etc.

[0281] 2) Signal format configuration; for example, RACH, SRS or PUCCH.

[0282] 3) Signal time domain resource configuration;

[0283] 4) Signal frequency domain resource configuration;

[0284] 5) Signal sequence configuration; for example, including a preamble index or a preamble index interval or a preamble group index; for example, a preamble group, indicating a preamble group index, indicating that the preamble group is used to trigger the transmission of an SSB of a second carrier or carrier group.

[0285] 6) Signal power configuration;

[0286] Optionally, the signal power configuration includes at least one of the following:

[0287] Initial signal power;

[0288] The power step size of the signal power ramp;

[0289] The number of repetitions corresponding to each signal sent;

[0290] The maximum number of times to repeat the signal.

[0291] 7) Signal spatial parameter configuration;

[0292] The signal spatial domain parameter configuration may include at least one of the following: a correspondence between the signal and the first carrier, the second carrier, or the carrier group SSB; and a signal transmission timer configuration. The timer is used to prevent the first signal from being transmitted too frequently. The timer is started after the first signal is transmitted, and repeated transmission of the first signal is not allowed before the timer expires.

[0293] As an optional embodiment, when the target operation is to receive the SSB and / or SIB sent by the second cell at a first position, the first position includes at least one of the following:

[0294] (1) X time units after sending the first signal, where X is greater than 0; the time unit is, for example, a slot, a symbol, or a millisecond. The terminal may begin detecting or receiving one or more SSBs and / or SIBs sent by the second cell X time units after sending the first signal.

[0295] (2) Y time units after receiving the first signal feedback information, Y is greater than 0; the terminal may start detecting or receiving one or more SSBs and / or SIBs sent by the second cell Y time units after receiving the first signal feedback.

[0296] The values ​​of X and / or Y may include: a predefined value plus a target offset value, where the target offset value is determined based on the first SSB / SIB of the next SSB / SIB1 period. The predefined value can ensure that the network side can perform the time of receiving and detecting the first signal signal, that is, after the terminal receives the first signal feedback, it receives the SSB / SIB1 at the sending position of the first SSB / SIB of the next SSB / SIB1 period after the predefined time unit.

[0297] (3) A time position is determined based on the scheduling information of the SIB monitored at a third position, where the third position is the first PDCCH occasion of the scheduled SIB closest to the moment of sending the first signal; the terminal may start monitoring the scheduling information of the SSB and / or SIB at the first PDCCH Occasion of the scheduled SIB closest to the moment of sending the first signal.

[0298] (4) A time position is determined based on the scheduling information of the SIB monitored at the fourth position, where the fourth position is the first PDCCH occasion of the scheduled SIB closest to the moment of receiving the first signal feedback information; the terminal may start monitoring the scheduling information of the SSB and / or SIB at the first PDCCH Occasion of the scheduled SIB closest to the moment of receiving the first signal feedback.

[0299] (5) within the timing time of a first timer started after sending the first signal; the terminal starts the first timer after sending the first signal, and monitors or detects the SSB and / or SIB within the timing time of the first timer.

[0300] (6) The time after the second timer started after sending the first signal times out; the terminal starts the second timer after sending the first signal, and monitors or detects the SSB and / or SIB after the timing time of the second timer times out.

[0301] (7) Within a listening window opened Z time units after sending the first signal, where Z is greater than 0, the terminal opens the listening window Z time units after sending the first signal, and monitors or detects the SSB and / or SIB within the listening window.

[0302] (8) Within a listening window opened after receiving feedback information of the first signal: After receiving feedback information of the first signal, the terminal opens the listening window and monitors or detects the SSB and / or SIB within the listening window. Optionally, if the terminal does not receive the SSB and / or SIB within the listening window, it resends the first signal.

[0303] The values ​​of X, Y, and Z are configured by the network-side device, or are agreed upon by the protocol or included in the first signal configuration;

[0304] The timing duration of the first timer and / or the second timer is configured by the network side device, or agreed upon by the protocol or included in the first signal configuration; the starting position, end position and duration of the listening window are configured by the network side device, or agreed upon by the protocol or included in the first signal configuration.

[0305] As an optional embodiment, when the target operation is receiving first signal feedback information at a second location, the second location includes at least one of the following:

[0306] (a) Q time units after sending the first signal, where the value of Q is configured by the network device, agreed upon by the protocol, or included in the first signal configuration; the terminal begins detecting first signal feedback information Q time units after sending the first signal. The time unit may be a time slot, a symbol, or a millisecond.

[0307] (b) the moment after the third timer started after sending the first signal times out; the terminal starts the third timer after sending the first signal, and starts detecting the first signal feedback information after the third timer times out.

[0308] (c) within the timing time of a fourth timer started after sending the first signal; the terminal starts the fourth timer after sending the first signal, and detects the first signal feedback information within the timing time of the fourth timer.

[0309] (d) within a listening window initiated after sending the first signal; the terminal initiates the listening window after sending the first signal and detects first signal feedback information within the listening window. Optionally, if the terminal does not receive first signal feedback information within the listening window, it resends the first signal.

[0310] Among them, the timing duration of the third timer and / or the fourth timer is configured by the network side device, or agreed upon by the protocol or included in the first signal configuration; the starting position, end position and duration of the listening window are configured by the network side device, or agreed upon by the protocol or included in the first signal configuration.

[0311] As an optional embodiment, the starting time of monitoring the type 0 physical downlink control channel PDCCH includes at least one of the following:

[0312] (A) The first PDCCH opportunity after the first signal is sent: the terminal may start monitoring the Type 0 PDCCH at the first PDCCH Occasion after the first signal is sent.

[0313] (B) The first PDCCH occasion S time units after the first signal is sent, where S is greater than 0; the terminal may begin monitoring the Type 0 PDCCH at the first PDCCH Occasion S time units after the first signal is sent. The time unit may be, for example, a slot, a symbol, or a millisecond.

[0314] (C) The first PDCCH opportunity T time units after receiving the feedback information of the first signal, where T is greater than 0; the terminal may start monitoring the Type 0 PDCCH at the first PDCCH Occasion T time units after receiving the feedback information of the first signal.

[0315] (D) After sending the first signal, receiving the first symbol of the earliest control resource set of Type 0 PDCCH; the terminal may monitor Type 0 PDCCH starting from the first symbol of the earliest CORESET receiving Type 0 PDCCH after sending the first signal.

[0316] (E) After U time units after sending the first signal, the first symbol of the earliest control resource set of the Type 0 PDCCH is received, where U is greater than 0; the terminal may start monitoring the Type 0 PDCCH from the first symbol of the earliest CORESET of the Type 0 PDCCH received U time units after sending the first signal.

[0317] (F) After V time units after receiving the first signal feedback information, the first symbol of the earliest control resource set of the Type 0 PDCCH is received, where V is greater than 0; the terminal may monitor the Type 0 PDCCH starting from the first symbol of the earliest CORESET of the Type 0 PDCCH received V time units after receiving the first signal feedback.

[0318] (G) A moment after a fifth timer started after sending the first signal times out; the terminal starts the fifth timer after sending the first signal, and starts monitoring the Type 0 PDCCH after the fifth timer times out.

[0319] (H) A moment after receiving the first signal feedback information; the terminal may start monitoring the Type 0 PDCCH after receiving the first signal feedback.

[0320] Among them, the values ​​of S, T, U, and V are configured by the network side device, or agreed upon by the protocol or included in the first signal configuration; the timing duration of the fifth timer is configured by the network side device, or agreed upon by the protocol or included in the first signal configuration.

[0321] As an optional embodiment, the sending the first signal to the second cell includes:

[0322] The first signal is sent to the second cell according to the second condition. In this embodiment, the condition for the terminal to send the first signal may be predefined by the protocol, configured by the network side, or determined according to the first information.

[0323] The second condition includes at least one of the following:

[0324] 1) Performing cell reselection (Cell selection); when performing cell reselection, the terminal may send a first signal to the second cell;

[0325] 2) performing cell selection (Cell reselection); when performing cell selection, the terminal may send the first signal to the second cell;

[0326] 3) After performing cell reselection or cell selection, the terminal needs to access a second cell, the second cell is a cell that supports on-demand transmission of SIBs, and the terminal receives a first signal configuration that triggers the second cell to send SIBs;

[0327] 4) The terminal receives the first signal configuration for triggering the second cell to send the SIB; when the terminal receives the first signal configuration for triggering the SIB sending of the second cell, the terminal can send the first signal.

[0328] 5) The terminal receives a first signal configuration that triggers the second cell to send SIB, and the second cell supports on-demand SIB sending; when the terminal receives the first signal configuration for triggering the SIB sending of the second cell and the second cell supports the on-demand SIB mode, the terminal can send the first signal.

[0329] 6) The terminal receives a first signal configuration that triggers the second cell to send an SIB, and the second cell is configured to prohibit camping; when the terminal receives the first signal configuration for triggering the second cell to send an SIB, and the second cell is configured to prohibit camping (bar), the terminal can send the first signal. The second cell is configured to prohibit camping, that is, the second cell is barred.

[0330] 7) The terminal receives a first signal configuration that triggers the second cell to send an SIB, the second cell is configured to prohibit camping, and the terminal needs to access the second cell;

[0331] 8) The terminal receives the first signal configuration for triggering the second cell to send SIB, and the terminal cannot reside in the current cell; the terminal receives the first signal configuration for triggering the SIB sending of the second cell, and the terminal determines that it cannot reside in the current cell, then it can send the first signal to the second cell.

[0332] 9) The terminal receives a first signal configuration that triggers a second cell to send an SIB, the terminal cannot camp on the current cell, and the second cell is a suitable cell;

[0333] 10) The terminal receives a first signal configuration that triggers the second cell to send an SIB, and the terminal needs to send a physical random access channel PRACH on the second cell;

[0334] 11) The terminal receives a first signal configuration for triggering the second cell to send an SIB, and the first information or the second information indicates that the second cell is in a state where the terminal is prohibited from camping;

[0335] 12) The first cell does not meet the residency condition, and the terminal receives a first signal configuration for triggering the second cell to send SIB; the terminal determines that the first cell does not meet the terminal residency condition, and the terminal receives a first signal configuration for triggering the SIB sending of the second cell, then the terminal can send the first signal.

[0336] 13) The terminal initiates random access; when the terminal initiates random access, a first signal may be sent.

[0337] 14) The terminal determines that the first cell cannot be camped on and the second cell is a suitable cell. If the terminal determines that the first cell cannot be camped on and the second cell is a suitable cell, the terminal may send the first signal.

[0338] As an optional embodiment, the condition for the terminal to send the first signal may also include: the terminal performs cell detection, receives SSB, but does not detect SIB1, and can use the first signal to wake up the target cell.

[0339] For example: If k SSB Indicates CD-SSB (in FR1, k SSB is 0 to 23; in FR2, k SSB is 0 to 11), usually SIB1 can be detected in CORESET0 and SSB associated with these CD-SSBs, but if the terminal does not detect SIB1 at the corresponding position, the terminal can use the first signal to wake up the second cell;

[0340] If k SSBIndicates NCD-SSB, that is, in FR1, if k SSB >23, in FR2, if k SSB >11, it means that there is no Type 0 CSS in SSB, then the terminal will SSB , combined with the RMSIPDCCH configuration (PDCCH Config SIB1 of MIB), find the GSCN of the next SSB, and then detect whether the next SSB is CD-SSB or NCD-SSB.

[0341] As an optional embodiment, sending the first signal to the second cell includes: sending the first signal to the second cell on a target resource; wherein the target resource is carried by the first information or agreed upon by a protocol.

[0342] The target resource includes at least one of the following:

[0343] Resources used by the second cell for random access; the terminal may send the first signal on the resources used by the second cell for random access;

[0344] Part of the timing of the resources used for random access in the second cell; the terminal may send the first signal at the part of the timing of the resources used for random access in the second cell;

[0345] a timing in the resources used for random access in the second cell; the terminal may send the first signal at a timing in the resources used for random access in the second cell;

[0346] Resources used only for sending the first signal and not resources used for random access in the second cell; optionally, the resources are completely independent of the resources used for random access in the second cell and are dedicated to sending the first signal. In this case, the RO used for sending the first signal is only used for sending the first signal, and there is no need to specify the association between the SSB and the RO.

[0347] As an optional embodiment, the sending the first signal to the second cell includes at least one of the following:

[0348] Selecting an RO corresponding to the SSB to send a first signal according to a reference signal measurement result of the second cell;

[0349] Sending the first signal on a time domain resource dedicated to sending the first signal;

[0350] Sending the first signal on a frequency domain resource dedicated to sending the first signal;

[0351] A first signal is sent on the RO associated with the target SSB index, where the target SSB index is configured by a network-side device, or is agreed upon by a protocol or included in the first signal configuration.

[0352] In this embodiment, when sending the first signal, the terminal can select the RO corresponding to the SSB to send the first signal according to the reference signal measurement result of the second cell, such as Msg1 can be used as the first signal; the terminal can send the first signal on the time domain resources or frequency domain resources dedicated to the sending of the first signal; the terminal can send the first signal on the RO associated with the target SSB index.

[0353] As an optional embodiment, the first signal feedback information includes at least one of the following:

[0354] 1) Simplified Msg2, the simplified Msg2 includes a random access preamble identifier RAPID; the simplified Msg2 may include only RAPID, while the traditional Msg2 (Legacy Msg2) includes RAPID, timing advance (TA) command, uplink authorization (UL grant), BI, and other contents.

[0355] 2) SSB index (SSB index); The SSB index can be used to notify the UE that the direction of the next SIB transmission can refer to the transmission direction of the SSB index.

[0356] 3) RAPID; if the RAPID is the same as the ID of the first signal preamble code sent by the terminal, the terminal considers that the first signal is sent successfully; if not, the terminal considers that the first signal is sent unsuccessfully.

[0357] 4) SIB direction information; for example, Quasi Co-location (QCL) information, which is used to inform the terminal of the next SIB transmission direction.

[0358] 5) First indication information, used to indicate to the terminal that it does not need to resend the first signal. The first indication information is DCI or a media access control (MAC) element. The first indication information can be a dedicated first signal feedback (DCI) that notifies the terminal that the second cell has woken up and that it does not need to resend the first signal. Optionally, a 1-bit information can be used to indicate whether the current SIB is in a normal transmission state.

[0359] 6) Carrying the PDSCH of the SIB after successful triggering; the terminal can know the PDSCH of the SIB after successful triggering based on the feedback information.

[0360] 7) Type 0 common search space PDCCH (Type 0 CSS PDCCH): The terminal may monitor the Type 0 CSS PDCCH based on the feedback information.

[0361] As an optional embodiment, the receiving direction of the first signal feedback information includes at least one of the following:

[0362] the direction of the SSB associated with the timing at which the terminal sends the first signal;

[0363] the direction of one or more adjacent SSBs to the SSB associated with the timing at which the terminal sends the first signal;

[0364] All directions.

[0365] In this embodiment, the second cell may send the first signal feedback according to the direction of the SSB associated with the occasion when the terminal sends the first signal; then the terminal may receive the first signal feedback in the direction of the SSB associated with the timing of sending the first signal; the second cell may send the first signal feedback according to the direction of one or more SSBs adjacent to the SSB associated with the occasion when the terminal sends the first signal, then the terminal may receive the first signal feedback in the direction of one or more SSBs adjacent to the SSB associated with the timing of sending the first signal; the second cell may send the first signal feedback omnidirectionally, then the terminal may receive the first signal feedback omnidirectionally.

[0366] As an optional embodiment, when the terminal receives the SIB sent by the second cell, the reception direction of the PDCCH of the SIB and / or the reception direction of the SIB includes at least one of the following:

[0367] the direction of the SSB associated with the timing at which the terminal sends the first signal;

[0368] the direction of one or more adjacent SSBs to the SSB associated with the timing at which the terminal sends the first signal;

[0369] All directions.

[0370] In this embodiment, the second cell may send the PDCCH and / or SIB of the SIB according to the direction of the SSB associated with the occasion when the terminal sends the first signal; then the terminal may receive the PDCCH and / or SIB of the SIB in the direction of the SSB associated with the timing of sending the first signal; the second cell may send the PDCCH and / or SIB of the SIB in the direction of one or more SSBs adjacent to the SSB associated with the occasion when the terminal sends the first signal, then the terminal may receive the PDCCH and / or SIB of the SIB in the direction of one or more SSBs adjacent to the SSB associated with the timing of sending the first signal; the second cell may send the PDCCH and / or SIB of the SIB omnidirectionally, then the terminal may receive the PDCCH and / or SIB of the SIB omnidirectionally.

[0371] Taking the SIB as on-demand SIB1 as an example, assuming that the terminal obtains the first information from the first cell, the first information includes the resource configuration for sending the first signal (such as RACH resource configuration, preamble configuration), SSB related information of the second cell (such as SSB transmission period, transmission quantity, etc.), the second cell supports on-demand SIB1, and the SIB1 configuration of the second cell after successful triggering. Examples of various ways for the terminal to receive on-demand SIB1 are as follows:

[0372] Method 1: The network side configures the RO that sends the first signal to be the RO used for RACH in the second cell. The SSB and RO mapping diagram is shown in Figure 4. Assuming that each RO is mapped to an SSB, taking the first signal as WUS as an example, the method for the terminal to receive the on-demand SIB1 includes:

[0373] Step 41: The UE selects the RO corresponding to SSB6 based on the SSB measurement result to send a WUS; X ms after sending the WUS, it starts to monitor the WUS feedback (PDCCH for Msg2) in the CORESET and SS configured to monitor WUS feedback as configured in the WUS configuration;

[0374] Step 42: The network side detects the WUS sent by the UE on the RO and sends Msg2 as feedback information of the WUS; and sends SIB1 to the UE in the direction of SSB6 or multiple SSBs adjacent to SSB6;

[0375] Step 43: After the UE receives WUS feedback in the CORESET and SS monitoring WUS feedback, it does not send Msg3 and starts monitoring SIB1 scheduling information at the first PDCCH Occasion of SIB1 that is closest to the time when WUS feedback (Msg2) is received.

[0376] The monitoring duration of the SIB1 or the number of SIB1s monitored depends on the first information or a pre-agreed agreement of the protocol, for example, it is agreed that the terminal monitors X cycles or Y slots.

[0377] Method 2: The RO to which the terminal sends the first signal is part of or one of the legacy ROs. The RO associated with the target SSB index configured on the network side can be used to send the first signal. The UE does not consider the SSB with the largest RSRP and can only send the first signal in the RO corresponding to the specified target SSB index. As shown in Figure 5, assuming that the target SSB index is SSB3, taking the first signal as WUS as an example, after the second cell receives WUS, it must send SIB1 in all directions. The method for the terminal to receive on-demand SIB1 includes:

[0378] Step 51: The UE cannot reside in the first cell and receives the WUS configuration of the second cell. The network side configures the UE to send WUS (Msg1) in the RO associated with the target SSB index (SSB index = 3) to trigger the SIB1 sending of the second cell. WUS is a preamble with a specific random access preamble index (specific Random Access Preamble index) configured by the network side or agreed upon by the protocol.

[0379] Step 52: The UE sends a WUS on the RO associated with the SSB with SSB index = 3; Z slots after sending the WUS, the UE starts monitoring SIB1 on the first PDCCH Occasion of the most recently scheduled SIB1;

[0380] Step 53: The network detects the WUS sent by the UE on the RO associated with the SSB with SSB index = 3, and then starts sending SIB1 in all directions;

[0381] The monitoring duration of the SIB1 or the number of SIB1s monitored depends on the first information or a pre-agreed agreement of the protocol, for example, it is agreed that the terminal monitors X cycles or Y slots.

[0382] Mode 3: Taking the first signal as WUS as an example, the network side configures the occasion (WO) for sending WUS to be the RO used for RACH in the second cell, and there is no mapping between SSB and WO. As shown in Figure 6, there is no mapping relationship between SSB and RO. The method for the terminal to receive on-demand SIB1 includes:

[0383] Step 61: The UE cannot camp on the first cell and receives a WUS configuration of the second cell, where the WUS configuration configures the time domain and frequency domain configuration of the occasions that can be used to send the WUS;

[0384] Step 62: The UE sends a WUS at the WUS sending occasion indicated by the WUS configuration; X ms after sending the WUS, the UE starts monitoring SIB1 at the first PDCCH Occasion of the most recently scheduled SIB1;

[0385] Step 63: The network side detects the WUS sent by the UE on the WUS occasion and then starts to send SIB1 omnidirectionally;

[0386] The monitoring duration of the SIB1 or the number of SIB1s monitored depends on the first information or a pre-agreed agreement of the protocol, for example, it is agreed that the terminal monitors X cycles or Y slots.

[0387] Mode 4: Taking the first signal as WUS as an example, the network side configures the RO for sending the WUS to be an independent (separate) resource (WUS occasion) that is completely independent of the resource used for random access of the second cell, as shown in Figure 7. The WUS occasion is only used to send the WUS, and there is no need to specify the association relationship between the SSB and the occasion. After receiving the WUS, the network side sends the SIB1 omnidirectionally. The method for the terminal to receive the on-demand SIB1 includes:

[0388] Step 71: The UE cannot camp on the first cell and receives the WUS configuration of the second cell. The UE sends a WUS (Msg1) under the WUS occasion configured by the network side to trigger the second cell to send SIB1;

[0389] Step 72: The network side detects the WUS sent by the UE on the WUS occasion;

[0390] Step 73: After Y slots after sending the WUS, the UE starts to monitor the scheduling information of SIB1 at the first PDCCH Occasion of the most recent scheduled SIB1;

[0391] The monitoring duration of the SIB1 or the number of SIB1s monitored depends on the first information or a pre-agreed agreement of the protocol, for example, it is agreed that the terminal monitors X cycles or Y slots.

[0392] Mode 5: Taking the first signal being WUS as an example, the network side configures the RO for sending the WUS to be a separate resource (WUS occasion) that is completely independent of the resources used for random access of the second cell. The WUS occasion is only used for WUS transmission, and there is a mapping between SSB and WUS occasion, as shown in Figure 8; after receiving the WUS, the network side sends SIB1 according to the SSB direction associated with the occasion for sending the WUS. The method for the terminal to receive on-demand SIB1 includes:

[0393] Step 81: The UE cannot camp on the first cell and receives the WUS configuration of the second cell. Under the WUS occasion configured by the network side, the UE sends a WUS (Msg1) on the WUS occasion associated with the SSB whose measurement result meets the target threshold, to trigger the second cell to send SIB1;

[0394] Step 82: The network side detects the WUS sent by the UE on the WUS occasion; the network side sends SIB1 along the direction of the SSB associated with the occasion where the UE sends the WUS or the directions of several nearby SSBs;

[0395] Step 83: After Y slots after sending the WUS, the UE starts to monitor the scheduling information of SIB1 at the first PDCCH Occasion of the most recent scheduled SIB1;

[0396] The monitoring duration of the SIB1 or the number of SIB1s monitored depends on the first information or a pre-agreed agreement of the protocol, for example, it is agreed that the terminal monitors X cycles or Y slots.

[0397] As an optional embodiment, the second cell may send first signal feedback information to the terminal before sending the on-demand SIB1, or may not send the first signal feedback information. Taking the first signal as WUS and the second cell sending WUS feedback information as an example, as shown in FIG9 , the method for the terminal to receive the on-demand SIB1 includes:

[0398] Step 91: The UE obtains first information from the first cell, where the first information includes the WUS configuration and the SIB1 transmission configuration of the second cell after the WUS is successfully triggered;

[0399] Step 92: The UE sends a WUS on the RO configured by the first information (using a specific preamble);

[0400] Step 93: The second cell receives the WUS and sends a simplified Msg2 as WUS feedback, and the UE receives the WUS feedback;

[0401] Step 94: The second cell sends SIB1, and the UE starts monitoring the scheduling information of SIB1 at the first PDCCH Occasion of SIB1 scheduled closest to the moment of receiving the WUS feedback.

[0402] The monitoring duration of monitoring SIB1 or the number of cycles of monitoring SIB1 depends on the network side configuration or the pre-agreed agreement of the protocol.

[0403] As another optional embodiment, taking the example of not sending the first signal feedback information before the second cell sends the on-demand SIB1, as shown in FIG10, taking the first signal being a WUS as an example, the method for the terminal to receive the on-demand SIB1 includes:

[0404] Step 101: The UE obtains first information from the first cell, where the first information includes the WUS configuration and the SIB1 transmission configuration of the second cell after the WUS is successfully triggered.

[0405] Step 102: The UE sends a WUS (specific preamble) on the SSB RO selected according to the measurement result;

[0406] Step 103: The second cell receives the WUS and sends SIB1 in the direction of the SSB associated with the RO selected by the UE; X ms after sending the WUS, the UE starts monitoring the Type 0 PDCCH associated with the SSB associated with the RO that sent the WUS.

[0407] The monitoring duration of monitoring SIB1 or the number of cycles of monitoring SIB1 depends on the network side configuration or the pre-agreed agreement of the protocol.

[0408] Optionally, the direction in which the second cell sends the feedback information of the first signal, or sends the SIB1 PDCCH, or sends the successfully triggered SIB1, is related to the occasion in which the UE sends the first signal:

[0409] Specifically: (1) if the occasion of the first signal is not mapped to the SSB, the transmission direction of the feedback (feedback) / SIB1 PDCCH / SIB1 of the first signal sent by the second cell is omnidirectional transmission;

[0410] (2) If the occasion of the first signal is mapped to an SSB, the direction in which the second cell sends the first signal feedback / SIB1 PDCCH / SIB1 is the direction of the SSB associated with the occasion in which the first signal is sent;

[0411] For example, if the first signal is WUS and the UE selects the occasion associated with SSB index = 1 to send WUS, the second cell sends downlink WUS feedback / SIB1 PDCCH / SIB1 in the direction of SSB index = 1;

[0412] (3) If the occasion of the first signal is mapped to the SSB, the second cell sends the first signal feedback / SIB1 PDCCH / SIB1 in the direction of one or more SSBs near the SSB associated with the WSU occasion.

[0413] For example, if the first signal is WUS and the UE selects the occasion associated with SSB index = 1 to send WUS, the network side may send downlink WUS feedback / SIB1 PDCCH / SIB1 in the direction of SSB index = 0, 1, 2.

[0414] The following example illustrates the behavior of the terminal after sending the first signal.

[0415] The UE performs a target operation after sending a first signal signal on a target resource according to the first information obtained from the first cell and / or the second cell, where the first signal signal is used to trigger one or more second cells to send SIB1, and the SSB of the second cell is sent normally, and the target operation includes:

[0416] (1) The UE starts monitoring the Type 0 PDCCH associated with the SSB corresponding to the RO that sends the first signal;

[0417] (2) The UE starts to use SI-RNTI to blindly detect the scheduling information of RMSI (or SIB1) in the Type 0 CSS corresponding to CORESET 0; or, the UE starts to blindly detect DCI 1_0 in the Type 0 CSS corresponding to CORESET 0.

[0418] In this embodiment, although the network side sends SSB normally in the energy-saving state, SIB1 is not sent, so the UE does not need to monitor the Type 0 PDCCH associated with these SSBs; when the UE meets the conditions to send the first signal, the UE needs to start monitoring the scheduling information of SIB1 by default. Therefore, after sending the first signal, the UE starts to use SI-RNTI to blindly detect the scheduling information of RMSI (or SIB1) in the Type 0 CSS corresponding to CORESET 0 associated with the SSB, or blindly detect DCI 1_0, and only monitors the Type 0 PDCCH associated with the SSB corresponding to the RO that sends the first signal.

[0419] (3) The UE monitors the first signal feedback at a corresponding position according to the first information or the protocol agreement. The monitoring position of the first signal feedback and the information content of the first signal feedback are not described in detail here.

[0420] (4) The UE does not monitor the DCI (Msg2) scrambled by the RA-RNTI.

[0421] In this embodiment, although the UE sends Msg1 (preamble), the preamble is only used to wake up the second cell and is not used for random access, so Msg2 is not needed as feedback for Msg1, and the UE does not need to monitor the DCI (Mg2) encrypted by RA-RNTI.

[0422] (5) The UE monitors the DCI (MSg2) scrambled by the RA-RNTI.

[0423] In this embodiment, the UE sends Msg1 (preamble), but the preamble is only used to wake up the second cell, not to perform RACH, and does not need to execute all RACH processes. The Msg2 or simplified Msg2 sent by the second cell can be used as a first signal feedback, so the UE needs to monitor the DCI (Mg2) scrambled by the RA-RNTI to determine whether to directly receive SIB1 or need to retransmit the first signal.

[0424] (6) After receiving the PDSCH with the RAR message (Msg2), the UE does not send the PUSCH transmission scheduled by the RAR UL Grant (Msg3).

[0425] In this embodiment, the UE sends Msg1 (preamble), but the preamble is only used to wake up the base station, not to perform RACH, and there is no need to execute all RACH processes. The Msg2 or simplified Msg2 sent by the second cell can be used as a simple first signal feedback. Therefore, after the terminal sends the first signal, it needs to monitor the DCI (Mg2) scrambled by RA-RNTI, and after monitoring the first signal feedback, the remaining random access process will no longer be executed, so the terminal will no longer send Msg3.

[0426] (7) The UE decides whether to resend the first signal based on the measurement result.

[0427] In this embodiment, if the UE does not receive the first signal feedback within the listening window, or does not detect the successfully triggered SSB or SIB1, the UE may resend the first signal.

[0428] (8) The UE receives on-demand SIB1 in the type 1 CSS (i.e., it does not receive RAR but receives SIB1 instead). The traditional use of the Type 1 CSS is to receive the PDCCH of the RACH. In this application, it can be used to receive the PDCCH that schedules SIB1.

[0429] (9) The UE receives the on-demand SIB1 in an SS dedicated for on-demand SIB1 reception; for example, a search space of an NES is specially configured for on-demand SIB1 reception.

[0430] (10) The UE determines the RO validity of the second cell according to the TDD configuration of the second cell included in the first information;

[0431] In existing solutions, RO validity is determined based on the following rules:

[0432] a: If the UE does not receive the tdd-UL-DL-Configuration, the RACH opportunity is valid when the following conditions are met:

[0433] The UE does not process an SSB in the RACH timeslot corresponding to the RACH opportunity, and the RACH opportunity is separated from the most recent SSB by at least Ngap symbols. If the preamble SCS is 1.25 kHz or 5 kHz, or the preamble format is B4, Ngap is 0; if the preamble SCS is 15 kHz, 30 kHz, 60 kHz, or 120 kHz, Ngap is 2.

[0434] b: If the UE receives tdd-UL-DL-Configuration, the RACH opportunity is valid when one of the following conditions is met:

[0435] The RACH timing is within the UL symbol range;

[0436] A RACH opportunity is valid if the UE does not process an SSB in the RACH slot corresponding to the RACH opportunity, and the RACH opportunity is separated from the most recent SSB by at least Ngap symbols, and the RACH opportunity is separated from the most recent DL symbol by at least Ngap symbols. The value of Ngap is not detailed here.

[0437] In the existing solution, the RO validity judgment needs to avoid collision with the time slot configured as uplink by the tdd-UL-DL-Configuration. However, before the UE obtains the SIB1 of the second cell, it is impossible to obtain the tdd-UL-DL-Configuration of the second cell. Therefore, in this application, the tdd-UL-DL-Configuration of the second cell (or the target cell) can be provided by the first cell, and the UE determines which ROs are valid based on the tdd-UL-DL-Configuration of the second cell provided by the first cell.

[0438] (11) The UE determines a valid uplink occasion for sending the first signal according to the TDD configuration of the second cell included in the first information.

[0439] The embodiments of the present application provide the UE behavior after the UE sends the first signal, as well as the direction in which the network side sends the SIB. The direction of the SIB is related to the RO of the UE sending the first signal, which can avoid the network side from sending the SIB in all directions and improve the accuracy of the UE receiving the SIB. The present application can carry the SIB transmission status information of the target cell in the SSB to help the UE determine whether the target cell can be triggered to send the SIB by sending the first signal.

[0440] As shown in FIG11 , an embodiment of the present application further provides a method for triggering a cell to send an SSB and / or SIB, which is performed by a second cell, and the method includes:

[0441] Step 1101: A second cell receives a first signal sent by a terminal; the first signal is used to trigger the second cell to perform SSB and / or SIB-related adjustments;

[0442] Step 1102: The second cell performs the SSB and / or SIB related adjustments.

[0443] In this embodiment, the terminal sends a first signal to the second cell, where the first signal is used to trigger the second cell to perform SSB and / or SIB-related adjustments. After receiving the first signal, the second cell may perform SSB and / or SIB-related adjustments.

[0444] Optionally, the first signal may be an uplink wake-up signal WUS sent by the UE, and the first signal may be in the form of a preamble code sequence.

[0445] As an optional embodiment, performing the SSB and / or SIB-related adjustment includes:

[0446] Change from not sending SSB to sending SSB;

[0447] Change from not sending SIB to sending SIB;

[0448] Adjust from sending long-cycle SSB to sending short-cycle SSB;

[0449] Adjust from sending long-period SIB to sending short-period SIB;

[0450] Adjusted from sending only PSS and SSS to sending normal SSB.

[0451] In this embodiment, after receiving the first signal, the second cell may perform one or more of the above adjustment operations. For example, the second cell originally does not transmit SSB, but adjusts to transmit SSB after receiving the first signal; or the second cell originally transmits long-cycle SSB, but adjusts to transmit short-cycle SSB after receiving the first signal.

[0452] Optionally, after receiving the first signal sent by the terminal, the method further includes: sending first signal feedback information to the terminal.

[0453] In this embodiment, after receiving the first signal, the second cell may send first signal feedback information to the terminal, or may not send the first signal feedback information.

[0454] Optionally, the first signal feedback information includes at least one of the following:

[0455] 1) Simplified Msg2, the simplified Msg2 includes the random access preamble identifier RAPID; the simplified Msg2 may include only RAPID, while the traditional Msg2 (Legacy Msg2) includes RAPID, TA command, uplink authorization (UL grant), BI and other contents.

[0456] 2) SSB index (SSB index); The SSB index can be used to notify the UE that the direction of the next SIB transmission can refer to the transmission direction of the SSB index.

[0457] 3) RAPID; if the RAPID is the same as the ID of the first signal preamble code sent by the terminal, the terminal considers that the first signal is sent successfully; if not, the terminal considers that the first signal is sent unsuccessfully.

[0458] 4) SIB direction information; for example, Quasi Co-location (QCL) information, which is used to inform the terminal of the next SIB transmission direction.

[0459] 5) First indication information, used to indicate to the terminal that it does not need to resend the first signal. The first indication information is DCI or a media access control (MAC) element. The first indication information can be a dedicated first signal feedback (DCI) that notifies the terminal that the second cell has woken up and that it does not need to resend the first signal. Optionally, a 1-bit information can be used to indicate whether the current SIB is in a normal transmission state.

[0460] 6) Carrying the PDSCH of the SIB after successful triggering; the terminal can know the PDSCH of the SIB after successful triggering based on the feedback information.

[0461] 7) Type 0 common search space PDCCH (Type 0 CSS PDCCH): The terminal may monitor the Type 0 CSS PDCCH based on the feedback information.

[0462] Optionally, the sending direction of the first signal feedback information includes at least one of the following:

[0463] the direction of the SSB associated with the timing at which the terminal sends the first signal;

[0464] the direction of one or more adjacent SSBs to the SSB associated with the timing at which the terminal sends the first signal;

[0465] All directions.

[0466] In this embodiment, the second cell may send feedback of the first signal according to the direction of the SSB associated with the occasion when the terminal sends the first signal; then the terminal may receive feedback of the first signal in the direction of the SSB associated with the timing of sending the first signal; the second cell may send feedback of the first signal according to the direction of one or more SSBs adjacent to the SSB associated with the occasion when the terminal sends the first signal, then the terminal may receive feedback of the first signal in the direction of one or more SSBs adjacent to the SSB associated with the timing of sending the first signal; the second cell may send feedback of the first signal omnidirectionally, then the terminal may receive feedback of the first signal in omnidirectionally.

[0467] As an optional embodiment, the method further includes:

[0468] sending first information to the terminal, where the first information is used for the terminal to perform a target operation after sending the first signal to the second cell;

[0469] The first information includes at least one of the following:

[0470] Second cell identifier;

[0471] The second cell supports or does not support on-demand transmission of SIBs;

[0472] The second cell supports or does not support on-demand SS transmission;

[0473] TDD configuration of the second cell;

[0474] Unified access control UAC configuration;

[0475] Prohibit cell resident bar configuration;

[0476] Trigger the first signal configuration of SSB transmission;

[0477] The first signal configuration that triggers SSB adjustment;

[0478] A first signal configuration triggering SIB transmission;

[0479] A first signal configuration triggering SIB adjustment;

[0480] Sending condition information of the first signal;

[0481] SIB configuration of the second cell after being successfully triggered by the first signal;

[0482] The SSB configuration of the second cell after being successfully triggered by the first signal.

[0483] In this embodiment, the first information corresponds to one or more second cells, and the first information can be displayed and configured by the second cell through broadcast information. Optionally, the first signal configuration is configured for each cell, or for each cell group.

[0484] Optionally, the SIB configuration of the second cell after being successfully triggered by the first signal includes at least one of the following:

[0485] The period for sending SIBs;

[0486] Control resource set 0 configuration;

[0487] Search space 0 configuration;

[0488] Type 0 PDCCH configuration;

[0489] SIB monitoring window;

[0490] The length of time to transmit the SIB;

[0491] Number of times SIB is sent;

[0492] Number of SIB sending cycles;

[0493] Frequency domain information of SIB;

[0494] Time domain information of SIB;

[0495] The sending mode of the SIB.

[0496] Optionally, the SIB transmission mode includes at least one of the following:

[0497] Send SIB mode normally;

[0498] Simplify the sending SIB mode;

[0499] Aggregate and send SIB mode;

[0500] Long-cycle transmission SIB pattern.

[0501] Optionally, the SSB configuration of the second cell after being successfully triggered by the first signal includes at least one of the following:

[0502] Frequency of sending SSB;

[0503] The time domain index or time domain position of sending SSB;

[0504] SSB monitoring window;

[0505] Length of time for SSB transmission;

[0506] Number of times SSB is sent;

[0507] Number of SSB sending cycles;

[0508] A time domain relationship between the triggered SSB and the first carrier SSB; the first carrier is a carrier used by the terminal to perform time-frequency reference synchronization for the second cell;

[0509] The frequency domain relationship between the triggered SSB and the first carrier SSB;

[0510] The spatial relationship between the triggered SSB and the first carrier SSB;

[0511] The time domain position of sending the first SSB;

[0512] SSB transmission mode.

[0513] Optionally, the SSB transmission mode includes at least one of the following:

[0514] Normally send SSB mode;

[0515] Simplify sending SSB mode;

[0516] Aggregate and send SSB mode;

[0517] Long cycle transmission SSB mode.

[0518] As an optional embodiment, the first signal configuration includes at least one of the following:

[0519] (1) Monitoring the configuration of first signal feedback information; the first signal feedback information is such as the PDCCH of msg2;

[0520] Optionally, the configuration of monitoring the first signal feedback information includes at least one of the following:

[0521] Monitoring control resource set configuration of first signal feedback information;

[0522] Monitoring a search space configuration for first signal feedback information;

[0523] Monitoring a PDCCH configuration for first signal feedback information;

[0524] A time window for monitoring first signal feedback information;

[0525] Monitor the starting position of the first signal feedback information.

[0526] (2) Transmission configuration of the first signal.

[0527] Optionally, the sending configuration of the first signal includes at least one of the following:

[0528] 1) Signal synchronization reference configuration; may include at least one of the following: SSB, CSI-RS, TRS, GPS timing, etc. of the first carrier.

[0529] 2) Signal format configuration; for example, RACH, SRS or PUCCH.

[0530] 3) Signal time domain resource configuration;

[0531] 4) Signal frequency domain resource configuration;

[0532] 5) Signal sequence configuration; for example, including a preamble index or a preamble index interval or a preamble group index; for example, a preamble group, indicating a preamble group index, indicating that the preamble group is used to trigger the transmission of an SSB of a second carrier or carrier group.

[0533] 6) Signal power configuration;

[0534] Optionally, the signal power configuration includes at least one of the following:

[0535] Initial signal power;

[0536] The power step size of the signal power ramp;

[0537] The number of repetitions corresponding to each signal sent;

[0538] The maximum number of times to repeat the signal.

[0539] 7) Signal spatial parameter configuration;

[0540] The signal spatial domain parameter configuration may include at least one of the following: a correspondence between the signal and the first carrier, the second carrier, or the carrier group SSB; and a signal transmission timer configuration. The timer is used to prevent the first signal from being transmitted too frequently. The timer is started after the first signal is transmitted, and repeated transmission of the first signal is not allowed before the timer expires.

[0541] As an optional embodiment, the first signal sent by the receiving terminal includes:

[0542] A first signal sent by a terminal is received on a target resource; wherein the target resource is carried by the first information or agreed upon by a protocol.

[0543] The target resource includes at least one of the following:

[0544] Resources used by the second cell for random access; the second cell may send or receive the first signal on the resources used by the second cell for random access;

[0545] Part of the timing of the resources used by the second cell for random access; the second cell may receive the first signal on the part of the timing of the resources used by the second cell for random access;

[0546] a timing in the resources used for random access by the second cell; the second cell may receive the first signal at a timing in the resources used for random access by the second cell;

[0547] The resource is only used for receiving the first signal and is not a resource used for random access by the second cell. Optionally, the resource is completely independent of the resource used for random access by the second cell and is dedicated to sending or receiving the first signal.

[0548] As an optional embodiment, when the SIB is sent to the terminal, the sending direction of the PDCCH of the SIB and / or the sending direction of the SIB includes at least one of the following:

[0549] the direction of the SSB associated with the timing at which the terminal sends the first signal;

[0550] the direction of one or more adjacent SSBs to the SSB associated with the timing at which the terminal sends the first signal;

[0551] All directions.

[0552] In this embodiment, the second cell may send the PDCCH and / or SIB of the SIB according to the direction of the SSB associated with the occasion when the terminal sends the first signal; then the terminal may receive the PDCCH and / or SIB of the SIB in the direction of the SSB associated with the timing of sending the first signal; the second cell may send the PDCCH and / or SIB of the SIB in the direction of one or more SSBs adjacent to the SSB associated with the occasion when the terminal sends the first signal, then the terminal may receive the PDCCH and / or SIB of the SIB in the direction of one or more SSBs adjacent to the SSB associated with the timing of sending the first signal; the second cell may send the PDCCH and / or SIB of the SIB omnidirectionally, then the terminal may receive the PDCCH and / or SIB of the SIB omnidirectionally.

[0553] Optionally, the method further includes: sending an SSB to the terminal, carrying second information in the SSB; the second information is used to indicate a transmission status of the SIB of the second cell, and the transmission status of the SIB of the second cell includes at least one of the following:

[0554] Send SIB status;

[0555] The state of not sending SIB;

[0556] Support on-demand sending of SIB mode;

[0557] On-demand SIB mode is not supported.

[0558] It should be noted that the second cell in this embodiment can implement the technical solutions related to the second cell in the above-mentioned method embodiment executed by the terminal and achieve the same or corresponding technical effects. To avoid repetition, they will not be described here.

[0559] The embodiments of the present application provide the direction in which the network side sends the SIB. The direction in which the SIB is sent is related to the RO of the UE sending the first signal, which can avoid the network side sending the SIB in all directions and improve the accuracy of the UE receiving the SIB. The present application can carry the SIB transmission status information of the target cell in the SSB to help the UE determine whether the target cell can be triggered to send the SIB by sending the first signal.

[0560] As shown in FIG12 , an embodiment of the present application further provides a method for triggering a cell to send an SSB and / or SIB, which is performed by a first cell, and the method includes:

[0561] Step 1201: The first cell sends first information to the terminal, where the first information is used by the terminal to perform a target operation after sending a first signal to the second cell; the first signal is used to trigger the second cell to perform adjustments related to the synchronization signal block SSB and / or system information block SIB.

[0562] In this embodiment, the first cell sends first information to the terminal, and the terminal may perform a target operation based on the first information after sending a first signal to the second cell. The terminal sends the first signal to the second cell, and after sending the first signal, may perform a target operation based on the first information, wherein the first signal is used to trigger one or more second cells to perform SSB and / or SIB-related adjustments.

[0563] Optionally, the first signal may be an uplink wake-up signal WUS sent by the UE, and the first signal may be in the form of a preamble code sequence.

[0564] Optionally, the first information includes at least one of the following:

[0565] Second cell identifier;

[0566] The second cell supports or does not support on-demand transmission of SIBs;

[0567] The second cell supports or does not support on-demand SSB transmission;

[0568] TDD configuration of the second cell;

[0569] Unified access control UAC configuration;

[0570] Prohibit cell resident configuration;

[0571] Trigger the first signal configuration of SSB transmission;

[0572] The first signal configuration that triggers SSB adjustment;

[0573] A first signal configuration triggering SIB transmission;

[0574] A first signal configuration triggering SIB adjustment;

[0575] Sending condition information of the first signal;

[0576] SIB configuration of the second cell after being successfully triggered by the first signal;

[0577] The SSB configuration of the second cell after being successfully triggered by the first signal.

[0578] In this embodiment, the first information corresponds to one or more second cells, and the first information can be displayed and configured by the first cell through broadcast information, or can be defaulted to be the same as the corresponding information content of the first cell. Optionally, the first signal configuration is configured for each cell, or for each cell group.

[0579] Optionally, the SIB configuration of the second cell after being successfully triggered by the first signal includes at least one of the following:

[0580] The period for sending SIBs;

[0581] Control resource set 0 configuration;

[0582] Search space 0 configuration;

[0583] Type 0 PDCCH configuration;

[0584] SIB monitoring window;

[0585] The length of time to transmit the SIB;

[0586] Number of times SIB is sent;

[0587] Number of SIB sending cycles;

[0588] Frequency domain information of SIB;

[0589] Time domain information of SIB;

[0590] The sending mode of the SIB.

[0591] Optionally, the SIB transmission mode includes at least one of the following:

[0592] Normal SIB transmission mode: This is the traditional SIB transmission mode compared to the simplified SIB transmission mode.

[0593] Simplify the SIB mode; for example, only send core configurations such as RACH;

[0594] Aggregate SIB transmission mode; for example, there is no time gap between multiple SIBs;

[0595] The SIB mode is sent over a long period of time, that is, the period for sending SIB1 is longer.

[0596] Optionally, the SSB configuration of the second cell after being successfully triggered by the first signal includes at least one of the following:

[0597] Frequency of sending SSB;

[0598] The time domain index or time domain position of sending SSB;

[0599] SSB monitoring window;

[0600] Length of time for SSB transmission;

[0601] Number of times SSB is sent;

[0602] Number of SSB sending cycles;

[0603] A time domain relationship between the triggered SSB and the first carrier SSB; the first carrier is a carrier used by the terminal to perform time-frequency reference synchronization for the second cell;

[0604] The frequency domain relationship between the triggered SSB and the first carrier SSB;

[0605] The spatial relationship between the triggered SSB and the first carrier SSB;

[0606] The time domain position of sending the first SSB;

[0607] SSB transmission mode.

[0608] Optionally, the SSB transmission mode includes at least one of the following:

[0609] Normal SSB transmission mode; it is the traditional SSB transmission mode relative to the simplified SSB transmission mode;

[0610] Simplify the SSB mode; for example, only send PSS and SSS;

[0611] Aggregate SSB transmission mode; for example, there is no time domain gap between multiple SSBs;

[0612] Long-cycle SSB transmission mode; for example, the second cell has a longer cycle for sending SSB.

[0613] As an optional embodiment, the first signal configuration includes at least one of the following:

[0614] (1) Monitoring the configuration of first signal feedback information; the first signal feedback information is such as the PDCCH of msg2;

[0615] Optionally, the configuration of monitoring the first signal feedback information includes at least one of the following:

[0616] Monitoring control resource set configuration of first signal feedback information;

[0617] Monitoring a search space configuration for first signal feedback information;

[0618] Monitoring a PDCCH configuration for first signal feedback information;

[0619] A time window for monitoring first signal feedback information;

[0620] Monitor the starting position of the first signal feedback information.

[0621] (2) Transmission configuration of the first signal.

[0622] Optionally, the sending configuration of the first signal includes at least one of the following:

[0623] 1) Signal synchronization reference configuration; may include at least one of the following: SSB, CSI-RS, TRS, GPS timing, etc. of the first carrier.

[0624] 2) Signal format configuration; for example, RACH, SRS or PUCCH.

[0625] 3) Signal time domain resource configuration;

[0626] 4) Signal frequency domain resource configuration;

[0627] 5) Signal sequence configuration; for example, including a preamble index or a preamble index interval or a preamble group index; for example, a preamble group, indicating a preamble group index, indicating that the preamble group is used to trigger the transmission of an SSB of a second carrier or carrier group.

[0628] 6) Signal power configuration;

[0629] Optionally, the signal power configuration includes at least one of the following:

[0630] Initial signal power;

[0631] The power step size of the signal power ramp;

[0632] The number of repetitions corresponding to each signal sent;

[0633] The maximum number of times to repeat the signal.

[0634] 7) Signal spatial parameter configuration;

[0635] The signal spatial domain parameter configuration may include at least one of the following: a correspondence between the signal and the first carrier, the second carrier, or the carrier group SSB; and a signal transmission timer configuration. The timer is used to prevent the first signal from being transmitted too frequently. The timer is started after the first signal is transmitted, and repeated transmission of the first signal is not allowed before the timer expires.

[0636] It should be noted that the first cell in this embodiment can implement all technical solutions related to the first cell in the above-mentioned method embodiment executed by the terminal and achieve the same or corresponding technical effects. To avoid repetition, they will not be repeated here.

[0637] In an embodiment of the present application, a first cell sends first information to a terminal, so that the terminal can perform a target operation based on the first information after sending a first signal to a second cell. The first signal is used to trigger one or more second cells to make SSB and / or SIB-related adjustments. After sending the first signal, the terminal can perform the target operation based on the first information from the first cell and / or the second cell, thereby ensuring accurate reception of the SSB and / or SIB sent by the second cell.

[0638] The method for triggering a cell to send SSB and / or SIB provided in an embodiment of the present application can be executed by a device for triggering a cell to send SSB and / or SIB. In an embodiment of the present application, the device for triggering a cell to send SSB and / or SIB is used as an example to illustrate the device for triggering a cell to send SSB and / or SIB provided in an embodiment of the present application.

[0639] As shown in FIG13 , an embodiment of the present application further provides an apparatus 1300 for triggering a cell to send an SSB and / or SIB, which is applied to a terminal. The apparatus includes:

[0640] The first transceiver unit 1310 is configured to send a first signal to the second cell;

[0641] A first processing unit 1320 is configured to perform a target operation according to the first information from the first cell and / or the second cell;

[0642] The first signal is used to trigger the second cell to perform SSB and / or SIB-related adjustments, and the first cell and the second cell are different cells;

[0643] The target operation includes at least one of the following:

[0644] receiving, at a first location, an SSB and / or SIB sent by the second cell, where the first location is determined according to the first information or agreed upon by a protocol;

[0645] receiving, in a first direction, an SSB and / or SIB sent by the second cell, where the first direction is a direction corresponding to an SSB index carried by the first signal feedback information;

[0646] receiving, in a second direction, an SSB and / or SIB sent by the second cell, where the second direction is a direction corresponding to the SSB associated with the timing of sending the first signal;

[0647] Start monitoring a type 0 PDCCH associated with a target SSB, where the target SSB is the SSB associated with the RO that sends the first signal;

[0648] Use SI-RNTI to blindly detect RMSI scheduling information in the type 0 CSS corresponding to control resource set 0;

[0649] Blind detection of DCI 1_0 in the type 0 CSS corresponding to control resource set 0;

[0650] receiving first signal feedback information at a second location, where the second location is determined according to a configuration of the first signal or agreed upon by a protocol;

[0651] Skip detecting DCI scrambled by random access RNTI;

[0652] Detecting DCI scrambled by random access RNTI;

[0653] resending the first signal under a first condition, where the first condition includes: the terminal does not receive a second contention-based random access message Msg2 within the RAR time window;

[0654] Do not send a PUSCH transmission scheduled by an RAR uplink grant after receiving a PDSCH carrying an RAR message;

[0655] After receiving Msg2, the third message Msg3 based on contention-based random access is not sent;

[0656] Receive on-demand SIBs in Type 1 CSS;

[0657] Receiving an on-demand SIB in a target search space, where the target search space is a search space dedicated to receiving the on-demand SIB;

[0658] Determining validity of the RO of the second cell according to time division duplex (TDD) configuration information of the second cell, where the TDD configuration information is derived from the first cell;

[0659] An effective uplink timing for sending the first signal is determined according to TDD configuration information of the second cell, where the TDD configuration information originates from the first cell.

[0660] Optionally, the SSB and / or SIB-related adjustments include:

[0661] Change from not sending SSB to sending SSB;

[0662] Change from not sending SIB to sending SIB;

[0663] Adjust from sending long-cycle SSB to sending short-cycle SSB;

[0664] Adjust from sending long-period SIB to sending short-period SIB;

[0665] Adjust from sending only PSS and SSS to sending SSB.

[0666] Optionally, the relationship between the first cell and the second cell includes one of the following:

[0667] The first cell and the second cell are co-frequency cells;

[0668] The first cell and the second cell are inter-frequency cells;

[0669] The first cell and the second cell belong to the same cell group;

[0670] The first cell and the second cell belong to the same timing advance group TAG;

[0671] The first cell and the second cell belong to the same tracking area.

[0672] Optionally, the device further includes:

[0673] A first acquiring unit is configured to acquire second information, where the second information is carried by the SSB sent by the second cell;

[0674] A first determining unit is configured to determine a transmission status of the SIB of the second cell according to the second information, where the transmission status of the SIB of the second cell includes at least one of the following:

[0675] Send SIB status;

[0676] The state of not sending SIB;

[0677] Support on-demand sending of SIB mode;

[0678] On-demand SIB mode is not supported.

[0679] Optionally, the manner in which the SSB of the second cell carries the second information includes at least one of the following:

[0680] indicated by a synchronization sequence included in the SSB of the second cell;

[0681] Indicated by an existing target field in the PBCH of the SSB of the second cell;

[0682] Indicated by a newly added payload of a synchronization sequence included in the SSB of the second cell;

[0683] Indicated by a newly added payload in the PBCH of the SSB of the second cell;

[0684] It is implicitly indicated by the PBCH demodulation reference signal DMRS contained in the SSB of the second cell; wherein, there is a mapping relationship between the DMRS sequence of the PBCH and the transmission status of the SIB or SSB.

[0685] Optionally, there is a one-to-one mapping relationship between a specific value of the existing target field of the master system message block MIB carried by the PBCH and the transmission status of the SIB.

[0686] Optionally, the first information includes at least one of the following:

[0687] Second cell identifier;

[0688] The second cell supports or does not support on-demand transmission of SIBs;

[0689] The second cell supports or does not support on-demand SSB transmission;

[0690] TDD configuration of the second cell;

[0691] Unified access control UAC configuration;

[0692] Prohibit cell resident bar configuration;

[0693] Trigger the first signal configuration of SSB transmission;

[0694] The first signal configuration that triggers SSB adjustment;

[0695] A first signal configuration triggering SIB transmission;

[0696] A first signal configuration triggering SIB adjustment;

[0697] Sending condition information of the first signal;

[0698] SIB configuration of the second cell after being successfully triggered by the first signal;

[0699] The SSB configuration of the second cell after being successfully triggered by the first signal.

[0700] Optionally, the SIB configuration of the second cell after being successfully triggered by the first signal includes at least one of the following:

[0701] The period for sending SIBs;

[0702] Control resource set 0 configuration;

[0703] Search space 0 configuration;

[0704] Type 0 PDCCH configuration;

[0705] SIB monitoring window;

[0706] The length of time to transmit the SIB;

[0707] Number of times SIB is sent;

[0708] Number of SIB sending cycles;

[0709] Frequency domain information of SIB;

[0710] Time domain information of SIB;

[0711] The sending mode of the SIB.

[0712] Optionally, the SIB transmission mode includes at least one of the following:

[0713] Send SIB mode normally;

[0714] Simplify the sending SIB mode;

[0715] Aggregate and send SIB mode;

[0716] Long-cycle transmission SIB pattern.

[0717] Optionally, the SSB configuration of the second cell after being successfully triggered by the first signal includes at least one of the following:

[0718] Frequency of sending SSB;

[0719] The time domain index or time domain position of sending SSB;

[0720] SSB monitoring window;

[0721] Length of time for SSB transmission;

[0722] Number of times SSB is sent;

[0723] Number of SSB sending cycles;

[0724] A time domain relationship between the triggered SSB and the first carrier SSB; the first carrier is a carrier that can be used as a time-frequency reference synchronization for the second cell;

[0725] The frequency domain relationship between the triggered SSB and the first carrier SSB;

[0726] The spatial relationship between the triggered SSB and the first carrier SSB;

[0727] The time domain position of sending the first SSB;

[0728] SSB transmission mode.

[0729] Optionally, the SSB transmission mode includes at least one of the following:

[0730] Normally send SSB mode;

[0731] Simplify sending SSB mode;

[0732] Aggregate and send SSB mode;

[0733] Long cycle transmission SSB mode.

[0734] Optionally, the first signal configuration includes at least one of the following:

[0735] Monitoring the configuration of the first signal feedback information;

[0736] A transmission configuration of the first signal.

[0737] Optionally, the configuration of monitoring the first signal feedback information includes at least one of the following:

[0738] Monitoring control resource set configuration of first signal feedback information;

[0739] Monitoring a search space configuration for first signal feedback information;

[0740] Monitoring a PDCCH configuration for first signal feedback information;

[0741] A time window for monitoring first signal feedback information;

[0742] Monitor the starting position of the first signal feedback information.

[0743] Optionally, the sending configuration of the first signal includes at least one of the following:

[0744] Signal synchronization reference configuration;

[0745] Signal form configuration;

[0746] Signal time domain resource configuration;

[0747] Signal frequency domain resource configuration;

[0748] Signal sequence configuration;

[0749] Signal power configuration;

[0750] Signal spatial parameter configuration.

[0751] Optionally, the signal power configuration includes at least one of the following:

[0752] Initial signal power;

[0753] The power step size of the signal power ramp;

[0754] The number of repetitions corresponding to each signal sent;

[0755] The maximum number of times to repeat the signal.

[0756] Optionally, the first signal configuration is configured for each cell, or configured for each cell group.

[0757] Optionally, when the target operation is to receive the SSB and / or SIB sent by the second cell at a first position, the first position includes at least one of the following:

[0758] X time units after the first signal is sent, X is greater than 0;

[0759] Y time units after receiving the first signal feedback information, Y is greater than 0;

[0760] a time position determined according to scheduling information of the SIB monitored at a third position, the third position being a first PDCCH timing of the scheduled SIB closest to a time point of sending the first signal;

[0761] a time position determined according to scheduling information of the SIB monitored at a fourth position, the fourth position being a first PDCCH timing of the scheduled SIB closest to a moment when the first signal feedback information is received;

[0762] within the timing time of a first timer started after sending the first signal;

[0763] the time after the second timer started after sending the first signal times out;

[0764] In a monitoring window that opens Z time units after the first signal is sent, Z is greater than 0;

[0765] In a monitoring window opened after receiving feedback information of the first signal;

[0766] The values ​​of X, Y, and Z are configured by the network-side device, or are agreed upon by the protocol or included in the first signal configuration;

[0767] The timing duration of the first timer and / or the second timer is configured by the network side device, or is agreed upon by the protocol or included in the first signal configuration;

[0768] The starting position, ending position and duration of the monitoring window are configured by the network side device, or agreed upon by the protocol or included in the first signal configuration.

[0769] Optionally, the value of at least one of X, Y, and Z includes: a predefined value and a target offset value;

[0770] The target offset value is determined by the first SSB or SIB of the next SSB or SIB cycle sent by the second cell after the first signal is sent.

[0771] Optionally, when the target operation is receiving first signal feedback information at a second location, the second location includes at least one of the following:

[0772] Q time units after the first signal is sent, the value of Q is configured by the network-side device, or is agreed upon by the protocol or included in the first signal configuration;

[0773] The time after the third timer started after the first signal is sent times out;

[0774] During the timing of the fourth timer started after the first signal is sent;

[0775] within the monitoring window that is activated after the first signal is sent;

[0776] The timing duration of the third timer and / or the fourth timer is configured by the network side device, or is agreed upon by the protocol or included in the first signal configuration;

[0777] The starting position, ending position and duration of the monitoring window are configured by the network side device, or agreed upon by the protocol or included in the first signal configuration.

[0778] Optionally, the starting time point for monitoring the type 0 physical downlink control channel PDCCH includes at least one of the following:

[0779] The first PDCCH opportunity after sending the first signal;

[0780] The first PDCCH opportunity after S time units after the first signal is sent, where S is greater than 0;

[0781] The first PDCCH opportunity after T time units after receiving feedback information of the first signal, where T is greater than 0;

[0782] After sending the first signal, receiving the first symbol of the earliest control resource set of type 0 PDCCH;

[0783] U time units after the first signal is sent, the first symbol of the earliest control resource set of the type 0 PDCCH is received, where U is greater than 0;

[0784] V time units after receiving the first signal feedback information, receiving the first symbol of the earliest control resource set of the type 0 PDCCH, where V is greater than 0;

[0785] The time after the fifth timer started after the first signal is sent times out;

[0786] A moment after receiving the first signal feedback information;

[0787] The values ​​of S, T, U, and V are configured by the network-side device, or are agreed upon by the protocol or included in the first signal configuration;

[0788] The timing duration of the fifth timer is configured by the network side device, or is agreed upon by the protocol or included in the first signal configuration.

[0789] Optionally, the first transceiver unit is specifically configured to:

[0790] sending a first signal to the second cell according to a second condition;

[0791] The second condition includes at least one of the following:

[0792] Perform cell reselection;

[0793] Perform cell selection;

[0794] After performing cell reselection or cell selection, the terminal needs to access a second cell, where the second cell is a cell that supports on-demand transmission of SIBs, and the terminal receives a first signal configuration that triggers the second cell to send the SIBs;

[0795] The terminal receives a first signal configuration that triggers the second cell to send an SIB;

[0796] The terminal receives a first signal configuration that triggers the second cell to send an SIB, and the second cell supports on-demand SIB transmission;

[0797] The terminal receives a first signal configuration that triggers a second cell to send an SIB, and the second cell is configured to prohibit camping;

[0798] The terminal receives a first signal configuration that triggers a second cell to send an SIB, the second cell is configured to prohibit camping, and the terminal needs to access the second cell;

[0799] The terminal receives a first signal configuration that triggers the second cell to send an SIB, and the terminal cannot reside in the current cell;

[0800] The terminal receives a first signal configuration that triggers the second cell to send an SIB, the terminal cannot camp on the current cell, and the second cell is a suitable cell;

[0801] The terminal receives a first signal configuration that triggers the second cell to send an SIB, and the terminal needs to send a physical random access channel PRACH on the second cell;

[0802] The terminal receives a first signal configuration for triggering the second cell to send an SIB, and the first information or the second information indicates that the second cell is in a state where the terminal is prohibited from camping;

[0803] The first cell does not meet the camping condition, and the terminal receives a first signal configuration for triggering the second cell to send an SIB;

[0804] The terminal initiates random access;

[0805] The terminal determines that the first cell cannot be camped on and the second cell is a suitable cell.

[0806] Optionally, the first transceiver unit is specifically configured to:

[0807] sending a first signal to the second cell on the target resource;

[0808] The target resource includes at least one of the following:

[0809] resources used by the second cell for random access;

[0810] Some opportunities in the resources used for random access by the second cell;

[0811] a timing in the resources used for random access in the second cell;

[0812] Resources used only for sending the first signal, and not resources used by the second cell for random access;

[0813] The target resource is carried by the first information or agreed upon by a protocol.

[0814] Optionally, the first transceiver unit is specifically configured to perform at least one of the following:

[0815] Selecting an RO corresponding to the SSB to send a first signal according to a reference signal measurement result of the second cell;

[0816] Sending the first signal on a time domain resource dedicated to sending the first signal;

[0817] Sending the first signal on a frequency domain resource dedicated to sending the first signal;

[0818] A first signal is sent on the RO associated with the target SSB index, where the target SSB index is configured by a network-side device, or is agreed upon by a protocol or included in the first signal configuration.

[0819] Optionally, the first signal feedback information includes at least one of the following:

[0820] A simplified Msg2, wherein the simplified Msg2 includes a random access preamble identifier RAPID;

[0821] SSB index;

[0822] RAPID;

[0823] SIB direction information;

[0824] First indication information is used to indicate that the terminal does not need to send the first signal again, where the first indication information is DCI or a media access control MAC control element CE;

[0825] PDSCH carrying the SIB after successful triggering;

[0826] Type 0 common search space PDCCH.

[0827] Optionally, the receiving direction of the first signal feedback information includes at least one of the following:

[0828] the direction of the SSB associated with the timing at which the terminal sends the first signal;

[0829] the direction of one or more adjacent SSBs to the SSB associated with the timing at which the terminal sends the first signal;

[0830] All directions.

[0831] Optionally, when the terminal receives the SIB sent by the second cell, the reception direction of the PDCCH of the SIB and / or the reception direction of the SIB includes at least one of the following:

[0832] the direction of the SSB associated with the timing at which the terminal sends the first signal;

[0833] the direction of one or more adjacent SSBs to the SSB associated with the timing at which the terminal sends the first signal;

[0834] All directions.

[0835] Optionally, the SIB includes SIB1.

[0836] The device for triggering a cell to send an SSB and / or SIB in the embodiment of the present application can be an electronic device, such as an electronic device with an operating system, or a component in an electronic device, such as an integrated circuit or chip. The electronic device can be a terminal, or it can be a device other than a terminal. For example, the terminal can include but is not limited to the types of terminals 11 listed above, and other devices can be servers, network attached storage (NAS), etc., which are not specifically limited in the embodiment of the present application.

[0837] The device for triggering a cell to send SSB and / or SIB provided in the embodiment of the present application can implement the various processes implemented in the method embodiments of Figures 3 to 10 and achieve the same technical effect. To avoid repetition, it will not be repeated here.

[0838] As shown in FIG14 , an embodiment of the present application further provides an apparatus 1400 for triggering a cell to send an SSB and / or SIB, which is applied to a second cell. The apparatus includes:

[0839] The second transceiver unit 1410 is configured to receive a first signal sent by a terminal; the first signal is used to trigger the second cell to perform SSB and / or SIB-related adjustments,

[0840] The second processing unit 1420 is configured to perform the SSB and / or SIB related adjustments.

[0841] Optionally, the device further includes:

[0842] The third transceiver unit is configured to send first signal feedback information to the terminal.

[0843] Optionally, the device further includes:

[0844] a fourth transceiver unit, configured to send first information to the terminal, where the first information is used for the terminal to perform a target operation after sending the first signal to the second cell;

[0845] The first information includes at least one of the following:

[0846] Second cell identifier;

[0847] The second cell supports or does not support on-demand transmission of SIBs;

[0848] The second cell supports or does not support on-demand SS transmission;

[0849] TDD configuration of the second cell;

[0850] Unified access control UAC configuration;

[0851] Prohibit cell resident bar configuration;

[0852] Trigger the first signal configuration of SSB transmission;

[0853] The first signal configuration that triggers SSB adjustment;

[0854] A first signal configuration triggering SIB transmission;

[0855] A first signal configuration triggering SIB adjustment;

[0856] Sending condition information of the first signal;

[0857] SIB configuration of the second cell after being successfully triggered by the first signal;

[0858] The SSB configuration of the second cell after being successfully triggered by the first signal.

[0859] Optionally, the SIB configuration of the second cell after being successfully triggered by the first signal includes at least one of the following:

[0860] The period for sending SIBs;

[0861] Control resource set 0 configuration;

[0862] Search space 0 configuration;

[0863] Type 0 PDCCH configuration;

[0864] SIB monitoring window;

[0865] The length of time to transmit the SIB;

[0866] Number of times SIB is sent;

[0867] Number of SIB sending cycles;

[0868] Frequency domain information of SIB;

[0869] Time domain information of SIB;

[0870] The sending mode of the SIB.

[0871] Optionally, the SIB transmission mode includes at least one of the following:

[0872] Send SIB mode normally;

[0873] Simplify the sending SIB mode;

[0874] Aggregate and send SIB mode;

[0875] Long-cycle transmission SIB pattern.

[0876] Optionally, the SSB configuration of the second cell after being successfully triggered by the first signal includes at least one of the following:

[0877] Frequency of sending SSB;

[0878] The time domain index or time domain position of sending SSB;

[0879] SSB monitoring window;

[0880] Length of time for SSB transmission;

[0881] Number of times SSB is sent;

[0882] Number of SSB sending cycles;

[0883] A time domain relationship between the triggered SSB and the first carrier SSB; the first carrier is a carrier used by the terminal to perform time-frequency reference synchronization for the second cell;

[0884] The frequency domain relationship between the triggered SSB and the first carrier SSB;

[0885] The spatial relationship between the triggered SSB and the first carrier SSB;

[0886] The time domain position of sending the first SSB;

[0887] SSB transmission mode.

[0888] Optionally, the SSB transmission mode includes at least one of the following:

[0889] Normally send SSB mode;

[0890] Simplify sending SSB mode;

[0891] Aggregate and send SSB mode;

[0892] Long cycle transmission SSB mode.

[0893] Optionally, the first signal configuration includes at least one of the following:

[0894] Monitoring the configuration of the first signal feedback information;

[0895] A transmission configuration of the first signal.

[0896] Optionally, the configuration of monitoring the first signal feedback information includes at least one of the following:

[0897] Monitoring control resource set configuration of first signal feedback information;

[0898] Monitoring a search space configuration for first signal feedback information;

[0899] Monitoring a PDCCH configuration for first signal feedback information;

[0900] A time window for monitoring first signal feedback information;

[0901] Monitor the starting position of the first signal feedback information.

[0902] Optionally, the sending configuration of the first signal includes at least one of the following:

[0903] Signal synchronization reference configuration;

[0904] Signal form configuration;

[0905] Signal time domain resource configuration;

[0906] Signal frequency domain resource configuration;

[0907] Signal sequence configuration;

[0908] Signal power configuration;

[0909] Signal spatial parameter configuration.

[0910] Optionally, the signal power configuration includes at least one of the following:

[0911] Initial signal power;

[0912] The power step size of the signal power ramp;

[0913] The number of repetitions corresponding to each signal sent;

[0914] The maximum number of times to repeat the signal.

[0915] Optionally, the second transceiver unit is specifically configured to:

[0916] receiving a first signal sent by a terminal on a target resource;

[0917] The target resource includes at least one of the following:

[0918] resources used by the second cell for random access;

[0919] Some opportunities in the resources used for random access by the second cell;

[0920] a timing in the resources used for random access in the second cell;

[0921] The resource is only used for receiving the first signal and is not a resource used by the second cell for random access.

[0922] Optionally, when sending an SIB to the terminal, a sending direction of a PDCCH of the SIB and / or a sending direction of the SIB includes at least one of the following:

[0923] the direction of the SSB associated with the timing at which the terminal sends the first signal;

[0924] the direction of one or more adjacent SSBs to the SSB associated with the timing at which the terminal sends the first signal;

[0925] All directions.

[0926] Optionally, the sending direction of the first signal feedback information includes at least one of the following:

[0927] the direction of the SSB associated with the timing at which the terminal sends the first signal;

[0928] the direction of one or more adjacent SSBs to the SSB associated with the timing at which the terminal sends the first signal;

[0929] All directions.

[0930] Optionally, the first signal feedback information includes at least one of the following:

[0931] A simplified Msg2, wherein the simplified Msg2 includes RAPID;

[0932] SSB index;

[0933] RAPID;

[0934] SIB direction information;

[0935] First indication information is used to indicate that the terminal does not need to send the first signal again, and the first indication information is DCI or MAC CE;

[0936] PDSCH carrying the SIB after successful triggering;

[0937] Type 0 common search space PDCCH.

[0938] Optionally, the performing the SSB and / or SIB-related adjustment includes:

[0939] Change from not sending SSB to sending SSB;

[0940] Change from not sending SIB to sending SIB;

[0941] Adjust from sending long-cycle SSB to sending short-cycle SSB;

[0942] Adjust from sending long-period SIB to sending short-period SIB;

[0943] Adjusted from sending only PSS and SSS to sending normal SSB.

[0944] The device for triggering a cell to send an SSB and / or SIB in the embodiment of the present application can be an electronic device, such as an electronic device with an operating system, or a component in an electronic device, such as an integrated circuit or chip. The electronic device can be a terminal, or it can be a device other than a terminal. For example, the terminal can include but is not limited to the types of terminals 11 listed above, and other devices can be servers, network attached storage (NAS), etc., which are not specifically limited in the embodiment of the present application.

[0945] The device for triggering a cell to send SSB and / or SIB provided in the embodiment of the present application can implement the various processes implemented in the method embodiment of Figure 11 and achieve the same technical effect. To avoid repetition, it will not be repeated here.

[0946] As shown in FIG15 , an embodiment of the present application further provides an apparatus 1500 for triggering a cell to send an SSB and / or SIB, which is applied to a first cell. The apparatus includes:

[0947] The fifth transceiver unit 1510 is used to send first information to the terminal, where the first information is used for the terminal to perform a target operation after sending a first signal to the second cell; the first signal is used to trigger the second cell to perform adjustments related to the synchronization signal block SSB and / or system information block SIB.

[0948] Optionally, the first information includes at least one of the following:

[0949] Second cell identifier;

[0950] The second cell supports or does not support on-demand transmission of SIBs;

[0951] The second cell supports or does not support on-demand SSB transmission;

[0952] TDD configuration of the second cell;

[0953] Unified access control UAC configuration;

[0954] Prohibit cell resident configuration;

[0955] Trigger the first signal configuration of SSB transmission;

[0956] The first signal configuration that triggers SSB adjustment;

[0957] A first signal configuration triggering SIB transmission;

[0958] A first signal configuration triggering SIB adjustment;

[0959] Sending condition information of the first signal;

[0960] SIB configuration of the second cell after being successfully triggered by the first signal;

[0961] The SSB configuration of the second cell after being successfully triggered by the first signal.

[0962] Optionally, the SIB configuration of the second cell after being successfully triggered by the first signal includes at least one of the following:

[0963] The period for sending SIBs;

[0964] Control resource set 0 configuration;

[0965] Search space 0 configuration;

[0966] Type 0 PDCCH configuration;

[0967] SIB monitoring window;

[0968] The length of time to transmit the SIB;

[0969] Number of times SIB is sent;

[0970] Number of SIB sending cycles;

[0971] Frequency domain information of SIB;

[0972] Time domain information of SIB;

[0973] The sending mode of the SIB.

[0974] Optionally, the SSB configuration of the second cell after being successfully triggered by the first signal includes at least one of the following:

[0975] Frequency of sending SSB;

[0976] The time domain index or time domain position of sending SSB;

[0977] SSB monitoring window;

[0978] Length of time for SSB transmission;

[0979] Number of times SSB is sent;

[0980] Number of SSB sending cycles;

[0981] A time domain relationship between the triggered SSB and the first carrier SSB; the first carrier is a carrier used by the terminal to perform time-frequency reference synchronization for the second cell;

[0982] The frequency domain relationship between the triggered SSB and the first carrier SSB;

[0983] The spatial relationship between the triggered SSB and the first carrier SSB;

[0984] The time domain position of sending the first SSB;

[0985] SSB transmission mode.

[0986] Optionally, the first signal configuration includes at least one of the following:

[0987] Monitoring the configuration of the first signal feedback information;

[0988] A transmission configuration of the first signal.

[0989] Optionally, the configuration of monitoring the first signal feedback information includes at least one of the following:

[0990] Monitoring control resource set configuration of first signal feedback information;

[0991] Monitoring a search space configuration for first signal feedback information;

[0992] PDCCH configuration of first signal feedback information;

[0993] A time window for monitoring first signal feedback information;

[0994] Monitor the starting position of the first signal feedback information.

[0995] Optionally, the sending configuration of the first signal includes at least one of the following:

[0996] Signal synchronization reference configuration;

[0997] Signal form configuration;

[0998] Signal time domain resource configuration;

[0999] Signal frequency domain resource configuration;

[1000] Signal sequence configuration;

[1001] Signal power configuration;

[1002] Signal spatial parameter configuration.

[1003] Optionally, the signal power configuration includes at least one of the following:

[1004] Initial signal power;

[1005] The power step size of the signal power ramp;

[1006] The number of repetitions corresponding to each signal sent;

[1007] The maximum number of times to repeat the signal.

[1008] The device for triggering a cell to send an SSB and / or SIB in the embodiment of the present application can be an electronic device, such as an electronic device with an operating system, or a component in an electronic device, such as an integrated circuit or chip. The electronic device can be a terminal, or it can be a device other than a terminal. For example, the terminal can include but is not limited to the types of terminals 11 listed above, and other devices can be servers, network attached storage (NAS), etc., which are not specifically limited in the embodiment of the present application.

[1009] The device for triggering a cell to send SSB and / or SIB provided in the embodiment of the present application can implement the various processes implemented in the method embodiment of Figure 12 and achieve the same technical effect. To avoid repetition, it will not be repeated here.

[1010] As shown in Figure 16, an embodiment of the present application further provides a communication device 1600, including a processor 1601 and a memory 1602, wherein the memory 1602 stores a program or instruction that can be run on the processor 1601. For example, when the communication device 1600 is a terminal, the program or instruction is executed by the processor 1601 to implement the various steps of the above-mentioned method embodiment for triggering a cell to send an SSB and / or SIB performed by the terminal, and can achieve the same technical effect. When the communication device 1600 is a network-side device, the program or instruction is executed by the processor 1601 to implement the various steps of the above-mentioned method embodiment for triggering a cell to send an SSB and / or SIB performed by the second cell or the first cell, and can achieve the same technical effect. To avoid repetition, it will not be repeated here.

[1011] The present application also provides a terminal including a processor and a communication interface, wherein the communication interface is coupled to the processor, and the processor is configured to execute a program or instruction to implement the steps of the method embodiment shown in FIG3 . This terminal embodiment corresponds to the aforementioned terminal-side method embodiment, and each implementation process and implementation method of the aforementioned method embodiment is applicable to this terminal embodiment and can achieve the same technical effects. Specifically, FIG17 is a schematic diagram of the hardware structure of a terminal implementing an embodiment of the present application.

[1012] The terminal 1700 includes but is not limited to: a radio frequency unit 1701, a network module 1702, an audio output unit 1703, an input unit 1704, a sensor 1705, a display unit 1706, a user input unit 1707, an interface unit 1708, a memory 1709 and at least some of the components of the processor 1710.

[1013] Those skilled in the art will appreciate that the terminal 1700 may also include a power supply (such as a battery) to power various components. The power supply may be logically connected to the processor 1710 via a power management system, thereby enabling the power management system to manage charging, discharging, and power consumption. The terminal structure shown in FIG17 does not limit the terminal. The terminal may include more or fewer components than shown, or combine certain components, or arrange the components differently, which will not be described in detail here.

[1014] It should be understood that in an embodiment of the present application, the input unit 1704 may include a graphics processing unit (GPU) 17041 and a microphone 17042, and the graphics processor 17041 processes the image data of a static picture or video obtained by an image capture device (such as a camera) in a video capture mode or an image capture mode. The display unit 1706 may include a display panel 17061, and the display panel 17061 may be configured in the form of a liquid crystal display, an organic light emitting diode, etc. The user input unit 1707 includes a touch panel 17071 and at least one of other input devices 17072. The touch panel 17071 is also called a touch screen. The touch panel 17071 may include two parts: a touch detection device and a touch controller. Other input devices 17072 may include, but are not limited to, a physical keyboard, function keys (such as volume control keys, switch keys, etc.), a trackball, a mouse, and a joystick, which will not be repeated here.

[1015] In the embodiment of the present application, after receiving downlink data from a network-side device, the RF unit 1701 may transmit the data to the processor 1710 for processing. Furthermore, the RF unit 1701 may send uplink data to the network-side device. Typically, the RF unit 1701 includes, but is not limited to, an antenna, an amplifier, a transceiver, a coupler, a low-noise amplifier, a duplexer, and the like.

[1016] Memory 1709 can be used to store software programs or instructions and various data. Memory 1709 may mainly include a first storage area for storing programs or instructions and a second storage area for storing data. The first storage area may store an operating system, applications or instructions required for at least one function (such as a sound playback function, an image playback function, etc.). In addition, memory 1709 may include volatile memory or non-volatile memory. The non-volatile memory may be a read-only memory (ROM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), an electrically erasable programmable read-only memory (EEPROM), or a flash memory. Volatile memory can be random access memory (RAM), static random access memory (SRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (SDRAM), double data rate synchronous dynamic random access memory (DDRSDRAM), enhanced synchronous dynamic random access memory (ESDRAM), synchronous link dynamic random access memory (SLDRAM), and direct RAM bus random access memory (DRRAM). The memory 1709 in the embodiment of the present application includes but is not limited to these and any other suitable types of memory.

[1017] Processor 1710 may include one or more processing units. Optionally, processor 1710 integrates an application processor and a modem processor. The application processor primarily handles operations related to the operating system, user interface, and application programs, while the modem processor primarily processes wireless communication signals, such as a baseband processor. It is understood that the modem processor may not be integrated into processor 1710.

[1018] The radio frequency unit 1701 is configured to send a first signal to the second cell;

[1019] Processor 1710, configured to perform a target operation according to first information from the first cell and / or the second cell;

[1020] The first signal is used to trigger the second cell to perform adjustments related to a synchronization signal block (SSB) and / or a system information block (SIB), and the first cell and the second cell are different cells;

[1021] The target operation includes at least one of the following:

[1022] receiving, at a first location, an SSB and / or SIB sent by the second cell, where the first location is determined according to the first information or agreed upon by a protocol;

[1023] receiving, in a first direction, an SSB and / or SIB sent by the second cell, where the first direction is a direction corresponding to an SSB index carried by the first signal feedback information;

[1024] receiving, in a second direction, an SSB and / or SIB sent by the second cell, where the second direction is a direction corresponding to the SSB associated with the timing of sending the first signal;

[1025] Start monitoring a type 0 physical downlink control channel PDCCH associated with a target SSB, where the target SSB is the SSB associated with the random access opportunity RO during which the first signal is sent;

[1026] Using the system information radio network temporary identifier (SI-RNTI) in the type 0 common search space (CSS) corresponding to the control resource set 0 to blindly detect the remaining minimum system information (RMSI) scheduling information;

[1027] Blind detection of downlink control information DCI 1_0 in type 0 CSS corresponding to control resource set 0;

[1028] receiving first signal feedback information at a second location, where the second location is determined according to a configuration of the first signal or agreed upon by a protocol;

[1029] Skip detecting DCI scrambled by random access RNTI;

[1030] Detecting DCI scrambled by random access RNTI;

[1031] sending the first signal again under a first condition, where the first condition includes: the terminal does not receive the second contention-based random access message Msg2 within the random access response RAR time window;

[1032] Not sending a Physical Uplink Shared Channel (PUSCH) transmission scheduled by an RAR uplink grant after receiving a Physical Downlink Shared Channel (PDSCH) carrying an RAR message;

[1033] After receiving Msg2, the third message Msg3 based on contention-based random access is not sent;

[1034] Receive on-demand SIBs in Type 1 CSS;

[1035] Receiving an on-demand SIB in a target search space, where the target search space is a search space dedicated to receiving the on-demand SIB;

[1036] Determining validity of the RO of the second cell according to time division duplex (TDD) configuration information of the second cell, where the TDD configuration information is derived from the first cell;

[1037] An effective uplink timing for sending the first signal is determined according to TDD configuration information of the second cell, where the TDD configuration information originates from the first cell.

[1038] Optionally, the adjustment related to the synchronization signal block SSB and / or system information block SIB includes:

[1039] Change from not sending SSB to sending SSB;

[1040] Change from not sending SIB to sending SIB;

[1041] Adjust from sending long-cycle SSB to sending short-cycle SSB;

[1042] Adjust from sending long-period SIB to sending short-period SIB;

[1043] Adjust from sending only the primary synchronization signal PSS and the secondary synchronization signal SSS to sending SSB.

[1044] Optionally, the relationship between the first cell and the second cell includes one of the following:

[1045] The first cell and the second cell are co-frequency cells;

[1046] The first cell and the second cell are inter-frequency cells;

[1047] The first cell and the second cell belong to the same cell group;

[1048] The first cell and the second cell belong to the same timing advance group TAG;

[1049] The first cell and the second cell belong to the same tracking area.

[1050] Optionally, the radio frequency unit 1701 is further configured to:

[1051] Acquire second information, where the second information is carried by an SSB sent by the second cell;

[1052] The processor 1710 is further configured to determine, according to the second information, a transmission status of the SIB of the second cell, where the transmission status of the SIB of the second cell includes at least one of the following:

[1053] Send SIB status;

[1054] The state of not sending SIB;

[1055] Support on-demand sending of SIB mode;

[1056] On-demand SIB mode is not supported.

[1057] Optionally, the manner in which the SSB of the second cell carries the second information includes at least one of the following:

[1058] indicated by a synchronization sequence included in the SSB of the second cell;

[1059] Indicated by an existing target field in the PBCH of the SSB of the second cell;

[1060] Indicated by a newly added payload of a synchronization sequence included in the SSB of the second cell;

[1061] Indicated by a newly added payload in the PBCH of the SSB of the second cell;

[1062] It is implicitly indicated by the PBCH demodulation reference signal DMRS contained in the SSB of the second cell; wherein, there is a mapping relationship between the DMRS sequence of the PBCH and the transmission status of the SIB or SSB.

[1063] Optionally, there is a one-to-one mapping relationship between a specific value of the existing target field of the master system message block MIB carried by the PBCH and the transmission status of the SIB.

[1064] Optionally, the first information includes at least one of the following:

[1065] Second cell identifier;

[1066] The second cell supports or does not support on-demand transmission of SIBs;

[1067] The second cell supports or does not support on-demand SSB transmission;

[1068] TDD configuration of the second cell;

[1069] Unified access control UAC configuration;

[1070] Prohibit cell resident bar configuration;

[1071] Trigger the first signal configuration of SSB transmission;

[1072] The first signal configuration that triggers SSB adjustment;

[1073] A first signal configuration triggering SIB transmission;

[1074] A first signal configuration triggering SIB adjustment;

[1075] Sending condition information of the first signal;

[1076] SIB configuration of the second cell after being successfully triggered by the first signal;

[1077] The SSB configuration of the second cell after being successfully triggered by the first signal.

[1078] Optionally, the SIB configuration of the second cell after being successfully triggered by the first signal includes at least one of the following:

[1079] The period for sending SIBs;

[1080] Control resource set 0 configuration;

[1081] Search space 0 configuration;

[1082] Type 0 PDCCH configuration;

[1083] SIB monitoring window;

[1084] The length of time to transmit the SIB;

[1085] Number of times SIB is sent;

[1086] Number of SIB sending cycles;

[1087] Frequency domain information of SIB;

[1088] Time domain information of SIB;

[1089] The sending mode of the SIB.

[1090] Optionally, the SIB transmission mode includes at least one of the following:

[1091] Send SIB mode normally;

[1092] Simplify the sending SIB mode;

[1093] Aggregate and send SIB mode;

[1094] Long-cycle transmission SIB pattern.

[1095] Optionally, the SSB configuration of the second cell after being successfully triggered by the first signal includes at least one of the following:

[1096] Frequency of sending SSB;

[1097] The time domain index or time domain position of sending SSB;

[1098] SSB monitoring window;

[1099] Length of time for SSB transmission;

[1100] Number of times SSB is sent;

[1101] Number of SSB sending cycles;

[1102] A time domain relationship between the triggered SSB and the first carrier SSB; the first carrier is a carrier that can be used as a time-frequency reference synchronization for the second cell;

[1103] The frequency domain relationship between the triggered SSB and the first carrier SSB;

[1104] The spatial relationship between the triggered SSB and the first carrier SSB;

[1105] The time domain position of sending the first SSB;

[1106] SSB transmission mode.

[1107] Optionally, the SSB transmission mode includes at least one of the following:

[1108] Normally send SSB mode;

[1109] Simplify sending SSB mode;

[1110] Aggregate and send SSB mode;

[1111] Long cycle transmission SSB mode.

[1112] Optionally, the first signal configuration includes at least one of the following:

[1113] Monitoring the configuration of the first signal feedback information;

[1114] A transmission configuration of the first signal.

[1115] Optionally, the configuration of monitoring the first signal feedback information includes at least one of the following:

[1116] Monitoring control resource set configuration of first signal feedback information;

[1117] Monitoring a search space configuration for first signal feedback information;

[1118] Monitoring a PDCCH configuration for first signal feedback information;

[1119] A time window for monitoring first signal feedback information;

[1120] Monitor the starting position of the first signal feedback information.

[1121] Optionally, the sending configuration of the first signal includes at least one of the following:

[1122] Signal synchronization reference configuration;

[1123] Signal form configuration;

[1124] Signal time domain resource configuration;

[1125] Signal frequency domain resource configuration;

[1126] Signal sequence configuration;

[1127] Signal power configuration;

[1128] Signal spatial parameter configuration.

[1129] Optionally, the signal power configuration includes at least one of the following:

[1130] Initial signal power;

[1131] The power step size of the signal power ramp;

[1132] The number of repetitions corresponding to each signal sent;

[1133] The maximum number of times to repeat the signal.

[1134] Optionally, the first signal configuration is configured for each cell, or configured for each cell group.

[1135] Optionally, when the target operation is to receive the SSB and / or SIB sent by the second cell at a first position, the first position includes at least one of the following:

[1136] X time units after the first signal is sent, X is greater than 0;

[1137] Y time units after receiving the first signal feedback information, Y is greater than 0;

[1138] a time position determined according to scheduling information of the SIB monitored at a third position, the third position being a first PDCCH timing of the scheduled SIB closest to a time point of sending the first signal;

[1139] a time position determined according to scheduling information of the SIB monitored at a fourth position, the fourth position being a first PDCCH timing of the scheduled SIB closest to a moment when the first signal feedback information is received;

[1140] within the timing time of a first timer started after sending the first signal;

[1141] the time after the second timer started after sending the first signal times out;

[1142] In a monitoring window that opens Z time units after the first signal is sent, Z is greater than 0;

[1143] In a monitoring window opened after receiving feedback information of the first signal;

[1144] The values ​​of X, Y, and Z are configured by the network-side device, or are agreed upon by the protocol or included in the first signal configuration;

[1145] The timing duration of the first timer and / or the second timer is configured by the network side device, or is agreed upon by the protocol or included in the first signal configuration;

[1146] The starting position, ending position and duration of the monitoring window are configured by the network side device, or agreed upon by the protocol or included in the first signal configuration.

[1147] Optionally, the value of at least one of X, Y, and Z includes: a predefined value and a target offset value;

[1148] The target offset value is determined by the first SSB or SIB of the next SSB or SIB cycle sent by the second cell after the first signal is sent.

[1149] Optionally, when the target operation is receiving first signal feedback information at a second location, the second location includes at least one of the following:

[1150] Q time units after the first signal is sent, the value of Q is configured by the network-side device, or is agreed upon by the protocol or included in the first signal configuration;

[1151] The time after the third timer started after the first signal is sent times out;

[1152] During the timing of the fourth timer started after the first signal is sent;

[1153] within the monitoring window that is activated after the first signal is sent;

[1154] The timing duration of the third timer and / or the fourth timer is configured by the network side device, or is agreed upon by the protocol or included in the first signal configuration;

[1155] The starting position, ending position and duration of the monitoring window are configured by the network side device, or agreed upon by the protocol or included in the first signal configuration.

[1156] Optionally, the starting time point for monitoring the type 0 physical downlink control channel PDCCH includes at least one of the following:

[1157] The first PDCCH opportunity after sending the first signal;

[1158] The first PDCCH opportunity after S time units after the first signal is sent, where S is greater than 0;

[1159] The first PDCCH opportunity after T time units after receiving feedback information of the first signal, where T is greater than 0;

[1160] After sending the first signal, receiving the first symbol of the earliest control resource set of type 0 PDCCH;

[1161] U time units after the first signal is sent, the first symbol of the earliest control resource set of the type 0 PDCCH is received, where U is greater than 0;

[1162] V time units after receiving the first signal feedback information, receiving the first symbol of the earliest control resource set of the type 0 PDCCH, where V is greater than 0;

[1163] The time after the fifth timer started after the first signal is sent times out;

[1164] A moment after receiving the first signal feedback information;

[1165] The values ​​of S, T, U, and V are configured by the network-side device, or are agreed upon by the protocol or included in the first signal configuration;

[1166] The timing duration of the fifth timer is configured by the network side device, or is agreed upon by the protocol or included in the first signal configuration.

[1167] Optionally, the radio frequency unit 1701 is specifically configured to:

[1168] sending a first signal to the second cell according to a second condition;

[1169] The second condition includes at least one of the following:

[1170] Perform cell reselection;

[1171] Perform cell selection;

[1172] After performing cell reselection or cell selection, the terminal needs to access a second cell, where the second cell is a cell that supports on-demand transmission of SIBs, and the terminal receives a first signal configuration that triggers the second cell to send the SIBs;

[1173] The terminal receives a first signal configuration that triggers the second cell to send an SIB;

[1174] The terminal receives a first signal configuration that triggers the second cell to send an SIB, and the second cell supports on-demand SIB transmission;

[1175] The terminal receives a first signal configuration that triggers a second cell to send an SIB, and the second cell is configured to prohibit camping;

[1176] The terminal receives a first signal configuration that triggers a second cell to send an SIB, the second cell is configured to prohibit camping, and the terminal needs to access the second cell;

[1177] The terminal receives a first signal configuration that triggers the second cell to send an SIB, and the terminal cannot reside in the current cell;

[1178] The terminal receives a first signal configuration that triggers the second cell to send an SIB, the terminal cannot camp on the current cell, and the second cell is a suitable cell;

[1179] The terminal receives a first signal configuration that triggers the second cell to send an SIB, and the terminal needs to send a physical random access channel PRACH on the second cell;

[1180] The terminal receives a first signal configuration for triggering the second cell to send an SIB, and the first information or the second information indicates that the second cell is in a state where the terminal is prohibited from camping;

[1181] The first cell does not meet the camping condition, and the terminal receives a first signal configuration for triggering the second cell to send an SIB;

[1182] The terminal initiates random access;

[1183] The terminal determines that the first cell cannot be camped on and the second cell is a suitable cell.

[1184] Optionally, the radio frequency unit 1701 is specifically configured to:

[1185] sending a first signal to the second cell on the target resource;

[1186] The target resource includes at least one of the following:

[1187] resources used by the second cell for random access;

[1188] Some opportunities in the resources used for random access by the second cell;

[1189] a timing in the resources used for random access in the second cell;

[1190] Resources used only for sending the first signal, and not resources used by the second cell for random access;

[1191] The target resource is carried by the first information or agreed upon by a protocol.

[1192] Optionally, the radio frequency unit 1701 is specifically configured to perform at least one of the following:

[1193] Selecting an RO corresponding to the SSB to send a first signal according to a reference signal measurement result of the second cell;

[1194] Sending the first signal on a time domain resource dedicated to sending the first signal;

[1195] Sending the first signal on a frequency domain resource dedicated to sending the first signal;

[1196] A first signal is sent on the RO associated with the target SSB index, where the target SSB index is configured by a network-side device, or is agreed upon by a protocol or included in the first signal configuration.

[1197] Optionally, the first signal feedback information includes at least one of the following:

[1198] A simplified Msg2, wherein the simplified Msg2 includes a random access preamble identifier RAPID;

[1199] SSB index;

[1200] RAPID;

[1201] SIB direction information;

[1202] First indication information is used to indicate that the terminal does not need to send the first signal again, where the first indication information is DCI or a media access control MAC control element CE;

[1203] PDSCH carrying the SIB after successful triggering;

[1204] Type 0 common search space PDCCH.

[1205] Optionally, the receiving direction of the first signal feedback information includes at least one of the following:

[1206] the direction of the SSB associated with the timing at which the terminal sends the first signal;

[1207] the direction of one or more adjacent SSBs to the SSB associated with the timing at which the terminal sends the first signal;

[1208] All directions.

[1209] Optionally, when the terminal receives the SIB sent by the second cell, the reception direction of the PDCCH of the SIB and / or the reception direction of the SIB includes at least one of the following:

[1210] the direction of the SSB associated with the timing at which the terminal sends the first signal;

[1211] the direction of one or more adjacent SSBs to the SSB associated with the timing at which the terminal sends the first signal;

[1212] All directions.

[1213] Optionally, the SIB includes SIB1.

[1214] It can be understood that the implementation process of each implementation method mentioned in this embodiment can refer to the relevant description of the method for triggering the cell to send SSB and / or SIB in the method embodiment, and achieve the same or corresponding technical effect. To avoid repetition, it will not be repeated here.

[1215] The present application also provides a network-side device, which can be either the second cell or the first cell. The network-side device includes a processor and a communication interface, the communication interface is coupled to the processor, and the processor is configured to execute a program or instruction to implement the steps of the method embodiment shown in Figure 11 or Figure 12. This network-side device embodiment corresponds to the aforementioned network-side device method embodiment, and each implementation process and implementation method of the aforementioned method embodiment are applicable to this network-side device embodiment and can achieve the same technical effects.

[1216] Specifically, an embodiment of the present application further provides a network-side device, which can be either a second cell or a first cell. As shown in Figure 18, the network-side device 1800 includes: an antenna 181, a radio frequency device 182, a baseband device 183, a processor 184, and a memory 185. The antenna 181 is connected to the radio frequency device 182. In the uplink direction, the radio frequency device 182 receives information through the antenna 181 and sends the received information to the baseband device 183 for processing. In the downlink direction, the baseband device 183 processes the information to be sent and sends it to the radio frequency device 182. The radio frequency device 182 processes the received information and sends it out through the antenna 181.

[1217] The method executed by the network-side device in the above embodiment may be implemented in the baseband device 183 , which includes a baseband processor.

[1218] The baseband device 183 may include, for example, at least one baseband board, on which multiple chips are arranged, as shown in Figure 18, one of the chips is, for example, a baseband processor, which is connected to the memory 185 through a bus interface to call the program in the memory 185 and execute the network device operations shown in the above method embodiment.

[1219] The network side device may further include a network interface 186, which is, for example, a Common Public Radio Interface (CPRI).

[1220] Specifically, the network side device 1800 of the embodiment of the present application also includes: instructions or programs stored in the memory 185 and can be run on the processor 184. The processor 184 calls the instructions or programs in the memory 185 to execute the methods executed by each module shown in Figure 14 or Figure 15, and achieves the same technical effect. To avoid repetition, it will not be repeated here.

[1221] An embodiment of the present application also provides a readable storage medium, on which a program or instruction is stored. When the program or instruction is executed by a processor, the various processes of the above-mentioned method embodiment of triggering a cell to send SSB and / or SIB are implemented, and the same technical effect can be achieved. To avoid repetition, it will not be repeated here.

[1222] The processor is the processor in the terminal described in the above embodiment. The readable storage medium includes a computer-readable storage medium, such as a computer read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk. In some examples, the readable storage medium may be a non-transitory readable storage medium.

[1223] An embodiment of the present application further provides a chip, which includes a processor and a communication interface, wherein the communication interface is coupled to the processor, and the processor is used to run programs or instructions to implement the various processes of the above-mentioned method embodiment of triggering the cell to send SSB and / or SIB, and can achieve the same technical effect. To avoid repetition, it will not be repeated here.

[1224] It should be understood that the chip mentioned in the embodiments of the present application can also be called a system-level chip, a system chip, a chip system or a system-on-chip chip, etc.

[1225] An embodiment of the present application further provides a computer program / program product, which is stored in a storage medium. The computer program / program product is executed by at least one processor to implement the various processes of the above-mentioned embodiment of the method for triggering a cell to send SSB and / or SIB, and can achieve the same technical effect. To avoid repetition, it will not be repeated here.

[1226] An embodiment of the present application also provides a communication system, including: a terminal and a network side device, wherein the terminal can be used to execute the steps of the method for triggering a cell to send SSB and / or SIB performed by the terminal as described above, and the network side device can be used to execute the steps of the method for triggering a cell to send SSB and / or SIB performed by the second cell or the first cell as described above.

[1227] It should be noted that, in this article, the terms "comprise", "include" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprises a ..." does not exclude the presence of other identical elements in the process, method, article or device comprising the element. In addition, it should be pointed out that the scope of the methods and devices in the embodiments of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in the opposite order according to the functions involved. For example, the described method may be performed in an order different from that described, and various steps may also be added, omitted or combined. In addition, the features described with reference to certain examples may be combined in other examples.

[1228] Through the description of the above embodiments, those skilled in the art can clearly understand that the above-mentioned embodiment methods can be implemented by means of a computer software product plus a necessary general-purpose hardware platform, or of course, by hardware. The computer software product is stored in a storage medium (such as ROM, RAM, magnetic disk, optical disk, etc.) and includes a number of instructions for enabling a terminal or network-side device to execute the methods described in each embodiment of the present application.

[1229] The embodiments of the present application are described above in conjunction with the accompanying drawings, but the present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of this application, ordinary technicians in this field can also make many forms of implementation methods without departing from the purpose of this application and the scope of protection of the claims. These implementation methods are all within the protection of this application.

Claims

1. A method for triggering a cell to send an SSB and / or an SIB, comprising: A terminal sends a first signal to a second cell; The terminal performs a target operation according to first information from a first cell and / or the second cell; Wherein, the first signal is used to trigger the second cell to perform adjustments related to a Synchronization Signal Block (SSB) and / or a System Information Block (SIB), and the first cell and the second cell are different cells; The target operation includes at least one of the following: Receiving the SSB and / or the SIB sent by the second cell at a first position, where the first position is determined according to the first information or agreed upon by a protocol; Receiving the SSB and / or the SIB sent by the second cell in a first direction, where the first direction is the direction corresponding to the SSB index carried in the first signal feedback information; Receiving the SSB and / or the SIB sent by the second cell in a second direction, where the second direction is the direction corresponding to the SSB associated with the timing of sending the first signal; Starting to monitor a Type 0 Physical Downlink Control Channel (PDCCH) associated with a target SSB, where the target SSB is the SSB associated with the Random Access Opportunity (RO) of sending the first signal; Blind detecting scheduling information of the Remaining Minimum System Information (RMSI) in the Type 0 Common Search Space (CSS) corresponding to Control Resource Set 0 using a System Information Radio Network Temporary Identifier (SI-RNTI); Blind detecting Downlink Control Information (DCI) 1_0 in the Type 0 CSS corresponding to Control Resource Set 0; Receiving first signal feedback information at a second position, where the second position is determined according to the configuration of the first signal or agreed upon by a protocol; Skipping the detection of DCI scrambled by a Random Access RNTI; Detecting DCI scrambled by a Random Access RNTI; Resending the first signal under a first condition, where the first condition includes: the terminal does not receive a second message (Msg2) based on contention-based random access within a Random Access Response (RAR) time window; Not sending a Physical Uplink Shared Channel (PUSCH) transmission scheduled by a RAR uplink grant after receiving a Physical Downlink Shared Channel (PDSCH) carrying a RAR message; Not sending a third message (Msg3) based on contention-based random access after receiving Msg2; Receiving an on-demand sent SIB in a Type 1 CSS; Receiving an on-demand sent SIB in a target search space, where the target search space is a search space dedicated to receiving the on-demand sent SIB; Determining the validity of the RO of the second cell according to the Time Division Duplex (TDD) configuration information of the second cell, where the TDD configuration information is from the first cell; Determining a valid uplink timing for sending the first signal according to the TDD configuration information of the second cell, where the TDD configuration information is from the first cell.

2. The method according to claim 1, wherein, The adjustments related to the Synchronization Signal Block (SSB) and / or the System Information Block (SIB) include: Changing from not sending an SSB to sending an SSB; Changing from not sending an SIB to sending an SIB; Changing from sending a long-period SSB to sending a short-period SSB; Changing from sending a long-period SIB to sending a short-period SIB; Adjust from only transmitting the Primary Synchronization Signal (PSS) and the Secondary Synchronization Signal (SSS) to transmitting the Synchronization Signal Block (SSB).

3. The method according to claim 1, wherein, The relationship between the first cell and the second cell includes one of the following: The first cell and the second cell are co-frequency cells; The first cell and the second cell are different-frequency cells; The first cell and the second cell belong to the same cell group; The first cell and the second cell belong to the same Timing Advance Group (TAG); The first cell and the second cell belong to the same Tracking Area.

4. The method according to claim 1, wherein Before performing the target operation, the method further includes: Obtaining second information carried by the SSB sent by the second cell; Determining the transmission status of the System Information Block (SIB) of the second cell according to the second information, where the transmission status of the SIB of the second cell includes at least one of the following: Transmission SIB status; Status of not transmitting SIB; Support for the on-demand SIB transmission mode; Do not support the on-demand SIB transmission mode.

5. The method according to claim 4, wherein The way that the SSB of the second cell carries the second information includes at least one of the following: Indicated by the synchronization sequence included in the SSB of the second cell; Indicated by the existing target field in the Physical Broadcast Channel (PBCH) of the SSB of the second cell; Indicated by the additional payload of the synchronization sequence included in the SSB of the second cell; Indicated by the additional payload in the PBCH of the SSB of the second cell; Implicitly indicated by the Physical Broadcast Channel Demodulation Reference Signal (PBCH DMRS) included in the SSB of the second cell; where there is a mapping relationship between the DMRS sequence of the PBCH and the transmission status of the SIB or SSB.

6. The method according to claim 5, wherein There is a one-to-one mapping relationship between the specific value of the existing target field of the Master System Information Block (MIB) carried by the PBCH and the transmission status of the SIB.

7. The method according to claim 1, wherein The first information includes at least one of the following: Second cell identifier; Whether the second cell supports or does not support on-demand SIB transmission; Whether the second cell supports or does not support on-demand SSB transmission; TDD configuration of the second cell; Unified Access Control (UAC) configuration; Barred cell residence configuration; First signal configuration for triggering SSB transmission; First signal configuration for triggering SSB adjustment; First signal configuration for triggering SIB transmission; First signal configuration for triggering SIB adjustment; Transmission condition information of the first signal; SIB configuration of the second cell after being successfully triggered by the first signal; SSB configuration of the second cell after being successfully triggered by the first signal.

8. The method according to claim 7, wherein, The SIB configuration of the second cell after being successfully triggered by the first signal includes at least one of the following: Period of transmitting SIB; Control Resource Set 0 configuration; Search Space 0 configuration; Type 0 Physical Downlink Control Channel (PDCCH) configuration; SIB listening window; Time length of transmitting SIB; Number of times of transmitting SIB; Number of SIB transmission periods; Frequency domain information of SIB; Time domain information of SIB; Transmission mode of SIB.

9. The method according to claim 8, wherein, The transmission mode of the SIB includes at least one of the following: Normal SIB transmission mode; Simplified SIB transmission mode; Aggregated SIB transmission mode; Long-period SIB transmission mode.

10. The method according to claim 7, wherein, After the first signal is successfully triggered, the SSB configuration of the second cell includes at least one of the following: The frequency point for transmitting the SSB; The time domain index or time domain position for transmitting the SSB; The listening window for the SSB; The time length for transmitting the SSB; The number of times the SSB is transmitted; The number of transmission cycles of the SSB; The time domain relationship between the triggered SSB and the SSB of the first carrier; The first carrier is a carrier that can be used as a time-frequency reference synchronization for the second cell; The frequency domain relationship between the triggered SSB and the SSB of the first carrier; The spatial domain relationship between the triggered SSB and the SSB of the first carrier; The time domain position for transmitting the first SSB; The transmission mode of the SSB.

11. The method according to claim 10, wherein, The transmission mode of the SSB includes at least one of the following: Normal SSB transmission mode; Simplified SSB transmission mode; Aggregated SSB transmission mode; Long-period SSB transmission mode.

12. The method according to claim 7, wherein, The first signal configuration includes at least one of the following: Configuration for listening to the feedback information of the first signal; Transmission configuration of the first signal.

13. The method according to claim 12, wherein, The configuration for listening to the feedback information of the first signal includes at least one of the following: Control resource set configuration for listening to the feedback information of the first signal; Search space configuration for listening to the feedback information of the first signal; PDCCH configuration for listening to the feedback information of the first signal; Time window for listening to the feedback information of the first signal; Starting position for listening to the feedback information of the first signal.

14. The method according to claim 12, wherein The transmission configuration of the first signal includes at least one of the following: Signal synchronization reference configuration; Signal form configuration; Signal time domain resource configuration; Signal frequency domain resource configuration; Signal sequence configuration; Signal power configuration; Signal spatial domain parameter configuration.

15. The method according to claim 14, wherein, The signal power configuration includes at least one of the following: Initial signal power; Climbing power step of the signal power; Number of repetitions corresponding to each signal transmission; Maximum number of repetitions for signal transmission.

16. The method according to any one of claims 7, 12 - 15, wherein The first signal configuration is configured for each cell or for each cell group.

17. The method according to claim 1, wherein When the target operation is to receive the SSB and / or SIB sent by the second cell at the first position, the first position includes at least one of the following: After X time units after sending the first signal, where X>0; After Y time units after receiving the feedback information of the first signal, where Y>0; Time position determined according to the scheduling information of the SIB monitored at the third position, where the third position is the first PDCCH opportunity for scheduling the SIB closest to the moment of sending the first signal; Time position determined according to the scheduling information of the SIB monitored at the fourth position, where the fourth position is the first PDCCH opportunity for scheduling the SIB closest to the moment of receiving the feedback information of the first signal; Within the timing time of the first timer started after sending the first signal; Time after the second timer times out after sending the first signal; Within the listening window opened after Z time units after sending the first signal, where Z>0; Within the listening window opened after receiving the feedback information of the first signal; Wherein, the values of X, Y, and Z are configured by the network side device, or agreed by the protocol or included in the first signal configuration; The timing duration of the first timer and / or the second timer is configured by a network-side device, or agreed upon by a protocol, or included in a first signal configuration; The start position, end position, and duration of the listening window are configured by a network-side device, or agreed upon by a protocol, or included in a first signal configuration; The value of at least one of X, Y, and Z includes: a predefined value and a target offset value; The target offset value is determined by the first SSB or SIB in the next SSB or SIB period sent by the second cell after the first signal is sent.

18. The method according to claim 1, wherein, In the case where the target operation is to receive first signal feedback information at a second position, the second position includes at least one of the following: After Q time units after the first signal is sent, the value of Q is configured by a network-side device, or agreed upon by a protocol, or included in a first signal configuration; The moment after the third timer started after the first signal is sent times out; During the timing time of the fourth timer started after the first signal is sent; Within the listening window started after the first signal is sent; Wherein, the timing duration of the third timer and / or the fourth timer is configured by a network-side device, or agreed upon by a protocol, or included in a first signal configuration; The start position, end position, and duration of the listening window are configured by a network-side device, or agreed upon by a protocol, or included in a first signal configuration.

19. The method according to claim 1, wherein The starting time point for listening to the type 0 physical downlink control channel PDCCH includes at least one of the following: The first PDCCH occasion after the first signal is sent; The first PDCCH occasion after S time units after the first signal is sent, where S > 0; The first PDCCH occasion after T time units after the feedback information of the first signal is received, where T > 0; The first symbol of the earliest control resource set for receiving the type 0 PDCCH after the first signal is sent; The first symbol of the earliest control resource set for receiving the type 0 PDCCH after U time units after the first signal is sent, where U > 0; The first symbol of the earliest control resource set for receiving the type 0 PDCCH after V time units after the feedback information of the first signal is received, where V > 0; The moment after the fifth timer started after the first signal is sent times out; The moment after the feedback information of the first signal is received; Wherein, the values of S, T, U, and V are configured by a network-side device, or agreed upon by a protocol, or included in a first signal configuration; The timing duration of the fifth timer is configured by a network-side device, or agreed upon by a protocol, or included in a first signal configuration.

20. The method according to claim 1, wherein Sending the first signal to the second cell includes: Sending the first signal to the second cell according to a second condition; Wherein, the second condition includes at least one of the following: Performing cell reselection; Performing cell selection; After performing cell reselection or cell selection, the terminal needs to access the second cell, the second cell is a cell that supports sending SIB on demand, and the terminal receives a first signal configuration that triggers the second cell to send SIB; The terminal receives a first signal configuration that triggers the second cell to send SIB; The terminal receives a first signal configuration for triggering the second cell to send SIB, and the second cell supports sending SIB on demand; The terminal receives a first signal configuration for triggering the second cell to send SIB, and the second cell is configured to prohibit camping; The terminal receives a first signal configuration for triggering the second cell to send SIB, the second cell is configured to prohibit camping, and the terminal needs to access the second cell; The terminal receives a first signal configuration for triggering the second cell to send SIB, and the terminal cannot camp on the current cell; The terminal receives a first signal configuration for triggering the second cell to send SIB, the terminal cannot camp on the current cell, and the second cell is a suitable cell; The terminal receives a first signal configuration for triggering the second cell to send SIB, and the terminal needs to send a Physical Random Access Channel (PRACH) on the second cell; The terminal receives a first signal configuration for triggering the second cell to send SIB, and the first information or the second information indicates that the second cell is in a state of prohibiting the terminal from camping; The first cell does not meet the camping condition, and the terminal receives a first signal configuration for triggering the second cell to send SIB; The terminal initiates random access; The terminal determines that the first cell cannot be camped on, and the second cell is a suitable cell.

21. The method according to claim 1, wherein Sending the first signal to the second cell includes: Sending the first signal to the second cell on the target resource; Wherein, the target resource includes at least one of the following: Resources for random access of the second cell; Some time instants in the resources for random access of the second cell; One time instant in the resources for random access of the second cell; Resources only for sending the first signal and not being the resources for random access of the second cell; Wherein, the target resource is carried by the first information or is agreed by the protocol.

22. The method according to claim 1, wherein Sending the first signal to the second cell includes at least one of the following: Selecting the RO corresponding to the SSB according to the reference signal measurement result of the second cell to send the first signal; Sending the first signal on the time domain resource dedicated to sending the first signal; Sending the first signal on the frequency domain resource dedicated to sending the first signal; Sending the first signal on the RO associated with the target SSB index, where the target SSB index is configured by the network-side device, or is agreed by the protocol or is included in the first signal configuration.

23. The method according to claim 1, wherein The first signal feedback information includes at least one of the following: Simplified Msg2, where the simplified Msg2 includes the Random Access Preamble Identifier (RAPID); SSB index; RAPID; Direction information of SIB; First indication information for indicating that the terminal does not need to send the first signal again, and the first indication information is DCI or a Medium Access Control (MAC) Control Element (CE); The Physical Downlink Shared Channel (PDSCH) carrying the SIB after the trigger is successful; The Physical Downlink Control Channel (PDCCH) in the type 0 common search space.

24. The method according to claim 1, wherein The receiving direction of the first signal feedback information includes at least one of the following: The direction of the SSB associated with the time instant when the terminal sends the first signal; The direction of one or more adjacent SSBs of the SSB associated with the time instant when the terminal sends the first signal; Omnidirectional; When the terminal receives the SIB sent by the second cell, the receiving direction of the PDCCH of the SIB and / or the receiving direction of the SIB include at least one of the following: The direction of the SSB associated with the timing when the terminal sends the first signal; The direction of one or more adjacent SSBs of the SSB associated with the timing when the terminal sends the first signal; Omnidirectional.

25. A method for triggering a cell to send an SSB and / or an SIB, including: The second cell receives the first signal sent by the terminal; The first signal is used to trigger the second cell to perform adjustments related to the SSB and / or the SIB; The second cell performs the adjustments related to the SSB and / or the SIB.

26. The method according to claim 25, wherein, After receiving the first signal sent by the terminal, the method further includes: Sending first signal feedback information to the terminal.

27. The method according to claim 25, wherein, The method further includes: Sending first information to the terminal, where the first information is used for the terminal to perform a target operation after sending the first signal to the second cell; Wherein, the first information includes at least one of the following: Second cell identifier; Whether the second cell supports or does not support sending SIB on demand; Whether the second cell supports or does not support sending SS on demand; TDD configuration of the second cell; Unified access control UAC configuration; Bar configuration for prohibiting cell residence; First signal configuration for triggering SSB transmission; First signal configuration for triggering SSB adjustment; First signal configuration for triggering SIB transmission; First signal configuration for triggering SIB adjustment; Transmission condition information of the first signal; SIB configuration of the second cell after being successfully triggered by the first signal; SSB configuration of the second cell after being successfully triggered by the first signal.

28. The method according to claim 25, wherein, Receiving the first signal sent by the terminal includes: Receiving the first signal sent by the terminal on a target resource; Wherein, the target resource includes at least one of the following: Resources used by the second cell for random access; Some timings in the resources used by the second cell for random access; One timing in the resources used by the second cell for random access; Resources only used for receiving the first signal and not the resources used by the second cell for random access.

29. The method according to claim 25, wherein, When sending the SIB to the terminal, the sending direction of the PDCCH of the SIB and / or the sending direction of the SIB include at least one of the following: The direction of the SSB associated with the timing when the terminal sends the first signal; The direction of one or more adjacent SSBs of the SSB associated with the timing when the terminal sends the first signal; Omnidirectional.

30. The method according to claim 25, wherein, Performing the adjustments related to the SSB and / or the SIB includes: Changing from not sending SSB to sending SSB; Changing from not sending SIB to sending SIB; Changing from sending long-period SSB to sending short-period SSB; Changing from sending long-period SIB to sending short-period SIB; Changing from sending only PSS and SSS to sending a normal SSB.

31. A method for triggering a cell to send an SSB and / or an SIB, including: The first cell sends first information to the terminal, where the first information is used for the terminal to perform a target operation after sending the first signal to the second cell; The first signal is used to trigger the second cell to perform adjustments related to the synchronization signal block (SSB) and / or the system information block (SIB).

32. The method according to claim 31, wherein, The first information includes at least one of the following: The second cell identifier; Whether the second cell supports or does not support sending the SIB on demand; Whether the second cell supports or does not support sending the SSB on demand; The TDD configuration of the second cell; The unified access control (UAC) configuration; The prohibited cell reselection configuration; The configuration of the first signal for triggering the SSB transmission; The configuration of the first signal for triggering the SSB adjustment; The configuration of the first signal for triggering the SIB transmission; The configuration of the first signal for triggering the SIB adjustment; The transmission condition information of the first signal; The SIB configuration of the second cell after being successfully triggered by the first signal; The SSB configuration of the second cell after being successfully triggered by the first signal.

33. A device for triggering a cell to send an SSB and / or an SIB, comprising: A first transceiver unit, configured to send a first signal to a second cell; A first processing unit, configured to perform a target operation according to first information from a first cell and / or a second cell; Wherein, the first signal is used to trigger the second cell to perform adjustments related to the SSB and / or the SIB, and the first cell and the second cell are different cells; The target operation includes at least one of the following: Receiving the SSB and / or the SIB sent by the second cell at a first location, where the first location is determined according to the first information or agreed by the protocol; Receiving the SSB and / or the SIB sent by the second cell in a first direction, where the first direction is the direction corresponding to the SSB index carried by the first signal feedback information; Receiving the SSB and / or the SIB sent by the second cell in a second direction, where the second direction is the direction corresponding to the SSB associated with the timing of sending the first signal; Starting to monitor the type 0 PDCCH associated with the target SSB, where the target SSB is the SSB associated with the RO for sending the first signal; Using the scheduling information of the RMSI blindly detected with the SI-RNTI within the type 0 CSS corresponding to the control resource set 0; Blindly detecting DCI 1_0 within the type 0 CSS corresponding to the control resource set 0; Receiving the first signal feedback information at a second location, where the second location is determined according to the configuration of the first signal or agreed by the protocol; Skipping the detection of the DCI scrambled by the random access RNTI; Detecting the DCI scrambled by the random access RNTI; Resending the first signal under a first condition, where the first condition includes: the terminal does not receive the second message Msg2 based on the contention-based random access within the RAR time window; Not sending the PUSCH transmission scheduled by the RAR uplink grant after receiving the PDSCH carrying the RAR message; Not sending the third message Msg3 based on the contention-based random access after receiving Msg2; Receiving the SIB sent on demand within the type 1 CSS; Receiving the SIB sent on demand within the target search space, where the target search space is a search space dedicated to receiving the SIB sent on demand; Determine validity of the RO of the second cell according to time division duplex (TDD) configuration information of the second cell, where the TDD configuration information is derived from the first cell; An effective uplink timing for sending the first signal is determined according to TDD configuration information of the second cell, where the TDD configuration information originates from the first cell.

34. The device according to claim 33, wherein, The SSB and / or SIB related adjustments include: Change from not sending SSB to sending SSB; Change from not sending SIB to sending SIB; Adjust from sending long-cycle SSB to sending short-cycle SSB; Adjust from sending long-period SIB to sending short-period SIB; Adjust from sending only PSS and SSS to sending SSB.

35. The apparatus according to claim 33, wherein, The device also includes: A first acquiring unit, configured to acquire second information, where the second information is carried by the SSB sent by the second cell; A first determining unit is configured to determine a transmission state of the SIB of the second cell according to the second information, where the transmission state of the SIB of the second cell includes at least one of the following: Send SIB status; The state of not sending SIB; Support on-demand sending of SIB mode; On-demand SIB mode is not supported.

36. The apparatus according to claim 33, wherein The first transceiver unit is specifically used for: Sending a first signal to the second cell according to a second condition; The second condition includes at least one of the following: Perform cell reselection; Perform cell selection; After performing cell reselection or cell selection, the terminal needs to access a second cell, the second cell is a cell that supports sending SIB on demand, and the terminal receives a first signal configuration that triggers the second cell to send SIB; The terminal receives a first signal configuration that triggers the second cell to send the SIB; The terminal receives a first signal configuration that triggers the second cell to send the SIB, and the second cell supports sending the SIB on demand; The terminal receives a first signal configuration that triggers a second cell to send an SIB, and the second cell is configured to prohibit camping; The terminal receives a first signal configuration that triggers a second cell to send an SIB, and the second cell is configured to prohibit camping, and the terminal needs to access the second cell; The terminal receives the first signal configuration that triggers the second cell to send the SIB, and the terminal cannot reside in the current cell; The terminal receives a first signal configuration that triggers the second cell to send the SIB, the terminal cannot reside in the current cell, and the second cell is a suitable cell; The terminal receives a first signal configuration that triggers the second cell to send an SIB, and the terminal needs to send a physical random access channel PRACH on the second cell; The terminal receives a first signal configuration for triggering the second cell to send an SIB, and the first information or the second information indicates that the second cell is in a state where the terminal is prohibited from camping; The first cell does not meet the camping condition, and the terminal receives a first signal configuration for triggering the second cell to send an SIB; The terminal initiates random access; The terminal determines that the first cell cannot be camped on and the second cell is a suitable cell.

37. The apparatus according to claim 33, wherein The first transceiver unit is specifically used for: Sending a first signal to the second cell on the target resource; The target resource includes at least one of the following: Resources used by the second cell for random access; Part of the occasions in the resources for random access in the second cell; One occasion in the resources for random access in the second cell; Resources only for transmitting the first signal and not the resources for random access in the second cell; Wherein, the target resources are carried by the first information or agreed by the protocol.

38. A device for triggering a cell to send an SSB and / or an SIB, comprising: A second transceiver unit, configured to receive a first signal sent by a terminal; The first signal is used to trigger the second cell to perform adjustments related to the SSB and / or the SIB, A second processing unit, configured to perform the adjustments related to the SSB and / or the SIB.

39. The apparatus according to claim 38, wherein, The device further comprises: A third transceiver unit, configured to send first signal feedback information to the terminal.

40. The device according to claim 38, wherein, The device further comprises: A fourth transceiver unit, configured to send first information to the terminal, where the first information is used for the terminal to perform a target operation after sending the first signal to the second cell; Wherein, the first information includes at least one of the following: Second cell identifier; Whether the second cell supports or does not support sending the SIB on demand; Whether the second cell supports or does not support sending the SS on demand; TDD configuration of the second cell; Unified access control UAC configuration; Bar configuration for prohibiting cell residence; First signal configuration for triggering SSB transmission; First signal configuration for triggering SSB adjustment; First signal configuration for triggering SIB transmission; First signal configuration for triggering SIB adjustment; Transmission condition information of the first signal; SIB configuration of the second cell after being successfully triggered by the first signal; SSB configuration of the second cell after being successfully triggered by the first signal.

41. The apparatus according to claim 38, wherein, The second transceiver unit is specifically configured to: Receive the first signal sent by the terminal on the target resources; Wherein, the target resources include at least one of the following: Resources for random access in the second cell; Part of the occasions in the resources for random access in the second cell; One occasion in the resources for random access in the second cell; Resources only for receiving the first signal and not the resources for random access in the second cell.

42. A device for triggering a cell to send an SSB and / or an SIB, comprising: A fifth transceiver unit, configured to send first information to a terminal, where the first information is used for the terminal to perform a target operation after sending the first signal to the second cell; The first signal is used to trigger the second cell to perform adjustments related to the synchronization signal block SSB and / or the system information block SIB.

43. A terminal, comprising a processor and a memory, where the memory stores a program or instruction that can run on the processor, and when the program or instruction is executed by the processor, the steps of the method for triggering a cell to send an SSB and / or an SIB according to any one of claims 1 to 27 are implemented.

44. A network-side device includes a processor and a memory. The memory stores programs or instructions that can run on the processor. When the programs or instructions are executed by the processor, the steps of the method for triggering a cell to send an SSB and / or an SIB according to any one of claims 28 to 43 are implemented, or the steps of the method for triggering a cell to send an SSB and / or an SIB according to any one of claims 44 to 51 are implemented.

45. A readable storage medium stores programs or instructions thereon. When the programs or instructions are executed by a processor, the steps of the method for triggering a cell to send an SSB and / or an SIB according to any one of claims 1 to 24 are implemented, or the steps of the method for triggering a cell to send an SSB and / or an SIB according to any one of claims 25 to 30 are implemented, or the steps of the method for triggering a cell to send an SSB and / or an SIB according to any one of claims 31 to 32 are implemented.

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