Method and device for transmitting SSB on secondary cell

Abstract

The invention relates to a method and a device for transmitting SSB on auxiliary cells, in the method, a terminal can acquire M auxiliary cells configured with SSB resources through configuration information, and acquire that a first SSB is received on a first auxiliary cell in the M auxiliary cells through indication information. Thus, the terminal does not need to acquire the first SSB of the first auxiliary cell through blind detection, and the power consumption of the terminal for detecting the SSB is reduced.

Description

Technical Field

[0001] The present application relates to the field of communication technology, and in particular to a method and device for transmitting SSB on a secondary cell. Background Art

[0002] Currently, a terminal can communicate on multiple cells at the same time, thereby supporting high-speed data transmission. The multiple cells may include a primary cell (PCell) and at least one secondary cell (SCell). In this way, multiple cells can achieve carrier aggregation (CA).

[0003] Generally, the terminal can obtain the synchronization signal and physical broadcast channel block (SSB) of the cell through blind detection, so that synchronization can be performed. However, in the CA scenario, when the terminal obtains the SSB of the SCell through blind detection, the complexity is large. This will increase the power consumption of the terminal detecting SSB. Therefore, how to reduce the power consumption of the terminal detecting SSB has become a technical problem that needs to be solved urgently at the current stage. Summary of the invention

[0004] The present application provides a method and device for transmitting SSB on a secondary cell, which can reduce the power consumption of a terminal detecting SSB.

[0005] In a first aspect, a method for transmitting an SSB on a secondary cell is provided, which method can be executed by a terminal, or by a module (such as a processor, a chip, or a chip system, etc.) applied to the terminal, or by a logical node, a logical module, or software that can implement all or part of the terminal functions. In this method, configuration information from a network device can be received, and the configuration information is used to indicate SSB resources in M ​​secondary cells, where M is a positive integer. Indication information from a network device can also be received, and the indication information is used to indicate receiving a first SSB on a first secondary cell, where the first secondary cell is one of the M secondary cells. In this way, the first SSB from the network device can be received on the SSB resources in the first secondary cell.

[0006] It can be seen that in the above embodiment, the terminal can obtain the M secondary cells configured with SSB resources through the configuration information, and obtain the first SSB received on the first secondary cell among the M secondary cells through the indication information. In this way, the terminal does not need to obtain the first SSB of the first secondary cell through blind detection, which reduces the power consumption of the terminal in detecting SSB.

[0007] In combination with the first aspect, optionally, the indication information includes a cell index of the first secondary cell.

[0008] In combination with the first aspect, optionally, the indication information is a bit map, and one bit in the bit map corresponds to the first secondary cell.

[0009] In combination with the first aspect, optionally, the method also includes: sending a signal to a network device, the signal being used to request the network device to send an SSB on N secondary cells, the N secondary cells including the first secondary cell, and N being a positive integer.

[0010] It can be seen that in the above embodiment, the terminal can request the network device to send SSB on N secondary cells through a signal. That is to say, when the terminal has a data transmission demand, the terminal can actively send a signal to the network device so that the terminal can receive the SSB of the secondary cell and synchronize. In this way, the data transmission demand of the terminal can be guaranteed.

[0011] In combination with the first aspect, optionally, the method further includes: the indication information is also used to indicate receiving a second SSB on a second secondary cell, the second secondary cell is one of the M secondary cells, and the second secondary cell is different from the first secondary cell. On the SSB resource in the second secondary cell, a second SSB from the network device is received.

[0012] It can be seen that in the above embodiment, the terminal can also be informed through the indication information to receive the second SSB on the second secondary cell, so that the terminal can be synchronized with the second secondary cell. In this way, the terminal can flexibly perform data transmission based on its own data transmission requirements.

[0013] In a second aspect, a method for transmitting SSB on a secondary cell is provided, which method can be executed by a network device, or by a module (such as a processor, a chip, or a chip system, etc.) applied to the network device, and can also be implemented by a logical node, a logical module, or software that can implement all or part of the network device functions. In this method, configuration information can be sent to the terminal, and the configuration information is used to indicate the synchronization signal block SSB resources in M ​​secondary cells, where M is a positive integer. Indication information can also be sent to the terminal, and the indication information is used to indicate receiving a first SSB on a first secondary cell, where the first secondary cell is one of the M secondary cells. Thus, the first SSB can be sent to the terminal on the SSB resources in the first secondary cell.

[0014] It can be seen that in the above embodiment, the network device can indicate the M secondary cells configured with SSB resources to the terminal through configuration information, and send indication information, so that the terminal knows to receive the first SSB on the first secondary cell among the M secondary cells. In this way, the terminal does not need to obtain the first SSB of the first secondary cell through blind detection, which reduces the power consumption of the terminal in detecting SSB.

[0015] In combination with the second aspect, optionally, the indication information includes a cell index of the first secondary cell.

[0016] In combination with the second aspect, optionally, the indication information is a bit map, and one bit in the bit map corresponds to the first secondary cell.

[0017] In combination with the second aspect, optionally, the method also includes: receiving a signal from the terminal, the signal is used to request the network device to send SSB on N secondary cells, the N secondary cells include the first secondary cell, and N is a positive integer.

[0018] In combination with the second aspect, optionally, the method also includes: the indication information is also used to indicate receiving a second SSB on a second secondary cell, the second secondary cell is one of M secondary cells, and the second secondary cell is different from the first secondary cell; and sending a second SSB to the terminal on the SSB resources in the second secondary cell.

[0019] It can be seen that in the above embodiment, the network device can also instruct to receive the second SSB on the second secondary cell, so that the terminal can receive the second SSB on the second secondary cell and synchronize with the second secondary cell. In this way, the terminal can flexibly select the corresponding secondary cell for data transmission based on its own data transmission requirements.

[0020] In a third aspect, a method for transmitting an SSB on a secondary cell is provided, which can be executed by a terminal, or by a module (such as a processor, a chip, or a chip system, etc.) applied to the terminal, or by a logical node, a logical module, or software that can implement all or part of the terminal functions. In this method, a first signal can be sent to a network device, and the first signal is used to request the network device to send a first SSB on a first secondary cell. Thus, the first SSB from the network device can be received on the first secondary cell.

[0021] It can be seen that in the above embodiment, the terminal can request the network device to send the first SSB on the first secondary cell through the first signal, so that the terminal can receive the first SSB on the first secondary cell requested by it. In this way, the terminal does not need to obtain the first SSB of the first secondary cell through blind detection, which reduces the power consumption of the terminal in detecting SSB.

[0022] In combination with the third aspect, optionally, the first secondary cell is the secondary cell with the smallest cell index among the N secondary cells, the N secondary cells include the secondary cells that do not receive SSB among the secondary cells configured with SSB resources, and N is a positive integer; and / or the frequency band index of the frequency band where the first secondary cell is located is the minimum frequency band index among the frequency bands where the N secondary cells are located.

[0023] In combination with the third aspect, optionally, the method also includes: the first signal is also used to request the network device to send a second SSB on a second secondary cell, the second secondary cell is one of the N secondary cells, and the second secondary cell is different from the first secondary cell; on the second secondary cell, the second SSB from the network device is received.

[0024] It can be seen that in the above embodiment, the first signal is also used to request the network device to send the second SSB on the second secondary cell, so that the terminal can also receive the second SSB on the second secondary cell and synchronize with the second secondary cell. In this way, the terminal can flexibly select the corresponding secondary cell for data transmission based on its own data transmission needs.

[0025] In a fourth aspect, a method for transmitting an SSB on a secondary cell is provided, which can be performed by a network device, or by a module (such as a processor, a chip, or a chip system, etc.) applied to the network device, or by a logical node, a logical module, or software that can implement all or part of the network device functions. In this method, a first signal from a terminal can be received, and the first signal is used to request the network device to send a first SSB on a first secondary cell. Thus, the first SSB can be sent to the terminal on the first secondary cell.

[0026] It can be seen that in the above embodiment, the network device can receive the first signal so as to send the first SSB on the first secondary cell requested by the terminal. In this way, the terminal does not need to obtain the first SSB of the first secondary cell through blind detection, which reduces the power consumption of the terminal in detecting SSB.

[0027] In combination with the fourth aspect, optionally, the first secondary cell is the secondary cell with the smallest cell index among the N secondary cells, the N secondary cells include the secondary cells that do not receive SSB among the secondary cells configured with SSB resources, and N is a positive integer; and / or the frequency band index of the frequency band where the first secondary cell is located is the minimum frequency band index among the frequency bands where the N secondary cells are located.

[0028] In combination with the fourth aspect, optionally, the method also includes: the first signal is also used to request the network device to send a second SSB on a second secondary cell, the second secondary cell is one of the N secondary cells, and the second secondary cell is different from the first secondary cell; on the second secondary cell, the second SSB is sent to the terminal.

[0029] It can be seen that in the above embodiment, the first signal is also used to request the network device to send the second SSB on the second secondary cell, so that the terminal can also receive the second SSB on the second secondary cell and synchronize with the second secondary cell. In this way, the terminal can flexibly select the corresponding secondary cell for data transmission based on its own data transmission needs.

[0030] In a fifth aspect, a communication device is provided, comprising a unit or module for implementing the method as described in any one of aspects 1 to 4. The communication device may be a terminal or a network device, or a module of a terminal or a network device (such as a processor, a chip, or a chip system, etc.), or a logical node, a logical module or software that can implement all or part of the functions of a terminal or a network device.

[0031] In a sixth aspect, a communication device is provided, the communication device comprising at least one processor; wherein the at least one processor is used to execute any of the methods described in any of the first to fourth aspects. The communication device may be a terminal or a network device, or a module of a terminal or a network device (such as a processor, a chip, or a chip system, etc.), or a logical node, a logical module or software that can implement all or part of the functions of a terminal or a network device. At least one processor may execute a computer program or instruction in a memory so that the above method is executed. The memory may be included in the communication device or may be located outside the communication device. In addition, the communication device may further include an interface.

[0032] In the seventh aspect, a communication system is provided, the communication system comprising a terminal and a network device; the terminal is used to execute the method as described in any one of the first aspects; the network device is used to execute the method as described in any one of the second aspects.

[0033] In an eighth aspect, a communication system is provided, the communication system comprising a terminal and a network device; the terminal is used to execute a method as described in any one of the third aspects; the network device is used to execute a method as described in any one of the fourth aspects.

[0034] In a ninth aspect, a computer-readable storage medium is provided, wherein the computer-readable storage medium stores computer instructions, and when the computer instructions are executed, the computer executes any method as described in any one of the first to fourth aspects.

[0035] In a tenth aspect, a computer program product is provided, the computer program product comprising: a computer program code, when the computer program code is executed by a computer, the computer executes any method as described in any one of the first to fourth aspects. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 A schematic diagram of the architecture of a communication system provided in an embodiment of the present application;

[0037] Figure 2 is a schematic diagram of carrier aggregation;

[0038] Figure 3 A flowchart of a method for transmitting SSB on a secondary cell provided in an embodiment of the present application;

[0039] Figure 4 A flowchart of another method for transmitting SSB on a secondary cell provided in an embodiment of the present application;

[0040] Figure 5 A schematic diagram of the structure of a communication device provided in an embodiment of the present application;

[0041] Figure 6 A schematic diagram of the structure of another communication device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0042] Figure 1 1 is a schematic diagram of the architecture of a communication system 1000 provided in an embodiment of the present application. Figure 1 As shown, the communication system 1000 includes a radio access network (RAN) 100 and a core network 200. Optionally, the communication system 1000 may also include the Internet 300. The RAN 100 includes at least one RAN node (such as Figure 1 110a and 110b in the figure, collectively referred to as 110), may also include at least one terminal (such as Figure 1 RAN 100 may also include other RAN nodes, such as wireless relay equipment and / or wireless backhaul equipment ( Figure 1 (not shown in the figure). The terminal 120 is connected to the RAN node 110 by wireless means, and the RAN node 110 is connected to the core network 200 by wireless or wired means. The core network device in the core network 200 and the RAN node 110 in the RAN 100 may be independent and different physical devices, or may be the same physical device that integrates the logical functions of the core network device and the logical functions of the RAN node. Terminals and terminals and RAN nodes and RAN nodes may be connected to each other by wired or wireless means.

[0043] RAN100 may be an evolved universal terrestrial radio access (E-UTRA) system, a new radio (NR) system, and a future radio access system defined in the 3rd generation partnership project (3GPP), or a WiFi system. RAN100 may also include two or more of the above different radio access systems. RAN100 may also be an open RAN (O-RAN).

[0044] RAN nodes, also known as radio access network equipment, RAN entities or access nodes, are used to help terminals access the communication system wirelessly. In one application scenario, a RAN node can be a base station, an evolved NodeB (eNodeB), a transmission reception point (TRP), a next generation NodeB (gNB) in a 5G mobile communication system, a next generation NodeB in a 6G mobile communication system, a base station in a future mobile communication system, or an access node in a WiFi system. A RAN node can be a macro base station (such as Figure 1 110a), or a micro base station or an indoor station (such as Figure 1 110b) in the figure, it can also be a relay node or a donor node.

[0045] In another application scenario, the cooperation of multiple RAN nodes can be used to help the terminal achieve wireless access, and different RAN nodes respectively implement part of the functions of the base station. For example, the RAN node can be a centralized unit (CU), a distributed unit (DU) or a radio unit (RU). The CU here completes the functions of the radio resource control protocol and the packet data convergence protocol (PDCP) of the base station, and can also complete the function of the service data adaptation protocol (SDAP); the DU completes the functions of the radio link control layer and the medium access control (MAC) layer of the base station, and can also complete the functions of part of the physical layer or all of the physical layer. For the specific description of the above-mentioned various protocol layers, please refer to the relevant technical specifications of 3GPP. RU can be used to implement the transceiver function of radio frequency signals. CU and DU can be two independent RAN nodes, or they can be integrated in the same RAN node, such as integrated in a baseband unit (BBU). RU can be included in a radio frequency device, such as a remote radio unit (RRU) or an active antenna unit (AAU). The CU can be further divided into two types of RAN nodes: CU-control plane and CU-user plane.

[0046] In different systems, RAN nodes may have different names. For example, in an O-RAN system, CU may be called an open CU (open CU, O-CU), DU may be called an open DU (open DU, O-DU), and RU may be called an open RU (open RU, O-RU). The RAN nodes in the embodiments of the present application may be implemented by software modules, hardware modules, or a combination of software modules and hardware modules. For example, the RAN node may be a server loaded with corresponding software modules. The embodiments of the present application do not limit the specific technology and specific device form adopted by the RAN node. For ease of description, the following description takes a base station as an example of a RAN node. In the present application, base stations and network devices may be used interchangeably.

[0047] A terminal is a device with wireless transceiver function, which can send signals to a base station or receive signals from a base station. A terminal can also be called a terminal device, user equipment (UE), a mobile station, a mobile terminal, etc. The terminal can be widely used in various scenarios, for example, device-to-device (D2D), vehicle-to-everything (V2X) communication, machine-type communication (MTC), Internet of Things (IOT), virtual reality, augmented reality, industrial control, automatic driving, telemedicine, smart grid, smart furniture, smart office, smart wear, smart transportation, smart city, etc. The terminal can be a mobile phone, a tablet computer, a computer with wireless transceiver function, a wearable device, a vehicle, an airplane, a ship, a robot, a mechanical arm, a smart home device, etc. The embodiments of the present application do not limit the specific technology and specific device form adopted by the terminal.

[0048] Base stations and terminals can be fixed or movable. Base stations and terminals can be deployed on land, including indoors or outdoors, handheld or vehicle-mounted; they can also be deployed on the water surface; they can also be deployed on airplanes, balloons, and artificial satellites. The embodiments of this application do not limit the application scenarios of base stations and terminals.

[0049] The roles of the base station and the terminal can be relative, for example, Figure 1The helicopter or drone 120i in the figure can be configured as a mobile base station. For the terminal 120j that accesses the wireless access network 100 through 120i, the terminal 120i is a base station; but for the base station 110a, 120i is a terminal, that is, 110a and 120i communicate through the wireless air interface protocol. Of course, 110a and 120i can also communicate through the interface protocol between base stations. In this case, relative to 110a, 120i is also a base station. Therefore, base stations and terminals can be collectively referred to as communication devices. Figure 1 110a and 110b in the figure may be referred to as communication devices having base station functions. Figure 1 120a-120j in the figure can be called communication devices with terminal functions.

[0050] Base stations and terminals, base stations and base stations, and terminals and terminals can communicate through authorized spectrum, unauthorized spectrum, or both; they can communicate through spectrum below 6 gigahertz (GHz), spectrum above 6 GHz, or spectrum below 6 GHz and spectrum above 6 GHz. The embodiments of the present application do not limit the spectrum resources used for wireless communication.

[0051] In the embodiments of the present application, the functions of the base station may also be performed by a module (such as a chip) in the base station, or by a control subsystem including the base station function. The control subsystem including the base station function here may be a control center in the above-mentioned application scenarios such as smart grid, industrial control, smart transportation, and smart city. The functions of the terminal may also be performed by a module (such as a chip or a modem) in the terminal, or by a device including the terminal function.

[0052] In order to facilitate the understanding of the content of this solution, some of the terms involved in the embodiments of the present application are explained below to facilitate understanding by those skilled in the art. This part is only for ease of understanding and cannot be regarded as a specific limitation of the present application.

[0053] 1. Reference Signal

[0054] The reference signal can be used for time-frequency synchronization, that is, the terminal can obtain downlink timing based on the reference signal. Downlink timing can be understood as the boundary of at least one of a system frame, a half frame, a time slot, a subframe, a symbol, etc.

[0055] The reference signal may be an SSB, or a tracking reference signal (TRS) or a positioning reference signal (PRS), etc., which is not limited in the present application. The following description will be given by taking the reference signal as an example.

[0056] Generally speaking, a network device can configure SSB resources, which may include, for example, one or more of time domain resources, frequency domain resources, code domain resources, spatial domain resources, and power domain resources.

[0057] The time domain resources include at least one of the period of the SSB, the time slot level offset within the period, the symbol index within the time slot, the time domain position of the SSB in the half frame, etc. The time domain position of the SSB in the half frame is configured by a bit map (or called SSB burst position (ssb-PositionsInBurst)). The bit map can be 4 bits, 8 bits, or 64 bits. Among them, the first bit (i.e., the leftmost bit) in the bit map corresponds to SSB index (index) 0, the second bit corresponds to SSB index 1, and so on. When a bit in the bit map is set to 0, it means that the corresponding SSB is not transmitted, that is, the SSB is not sent. When the bit is set to 1, it means that the corresponding SSB is transmitted, that is, the SSB is sent. And vice versa.

[0058] The frequency domain resources include at least one of the frequency position of the SSB, the subcarrier spacing of the SSB, the bandwidth, the starting resource block (RB), the frequency hopping configuration, the frequency domain comb configuration, etc.

[0059] The code domain resources include at least one of a sequence of SSB, a cyclic shift of SSB, etc.

[0060] The power domain resources include at least one of the power, power range, power offset, power threshold, etc. of the SSB. The power of the SSB can be understood as the transmit power of the SSB, and more specifically, can be understood as the transmit power of the secondary synchronization signal (SSS) in the SSB. The power range may include an interval determined by a maximum power value and a minimum power value, and the power range may also include boundary points or not include boundary points, such as a maximum power value and / or a minimum power value.

[0061] 2. Signal

[0062] A certain signal mentioned in this application (such as the first signal below) can be used to request a network device to send an SSB on at least one secondary cell (such as at least one of the first secondary cell and the second secondary cell below). The signal can be understood as a channel or a wake-up signal (WUS).

[0063] A certain channel mentioned in this application may refer to a physical random access channel (PRACH), a physical uplink control channel (PUCCH) or a physical uplink shared channel (PUSCH).

[0064] Among them, PRACH can be divided into non-contention PRACH and contention PRACH.

[0065] It should be pointed out that in the present application, PUCCH and PUSCH are only used as examples of uplink control channels and uplink data channels respectively. In different systems and different scenarios, data channels and control channels may have different names, and the embodiments of the present application do not limit this.

[0066] Optionally, the signal may have an association relationship with at least one secondary cell, which can be specifically understood as having an association relationship with the SSB on each secondary cell in at least one secondary cell (the SSB is the SSB corresponding to the bit value of 1 in ssb-PositionsInBurst). That is to say, after the network device receives the signal, it can be learned through the association relationship that the SSB is sent on at least one secondary cell. Alternatively, after the terminal sends the signal, it indicates a request to send the SSB on at least one secondary cell. The association relationship may be predefined or preconfigured, or the association relationship may be indicated by the network device to the terminal, that is, the network device indicates which secondary cells the signal is associated with, which can also be understood as indicating which secondary cells the signal is associated with SSB on.

[0067] Optionally, the number of secondary cells associated with different signals may be the same or different. For example, the number of secondary cells associated with signal 1 is 2, the number of secondary cells associated with signal 2 is 3, and so on.

[0068] Optionally, the secondary cells associated with different signals may be partially the same or completely different. Exemplarily, signal 1 is associated with secondary cell 1, and signal 2 is associated with secondary cell 1 and secondary cell 2. That is, the secondary cells associated with signal 1 and signal 2 are partially the same. Another exemplary example is that signal 1 is associated with secondary cell 1, and signal 2 is associated with secondary cell 2 and secondary cell 3. That is, the secondary cells associated with signal 1 and signal 2 are completely different.

[0069] Optionally, when the signal is PUCCH or PUSCH, the signal is associated with at least one secondary cell, which can be understood as: uplink control information (UCI) carried in PUCCH or PUSCH is associated with at least one secondary cell. Or, a buffer status report (BSR) carried in PUSCH is associated with at least one secondary cell. Association with at least one secondary cell can be understood as association with the SSB on each secondary cell in at least one secondary cell.

[0070] 3. Component Carrier (CC)

[0071] CC is a continuous frequency range that complies with system regulations. This frequency range can be determined by the center frequency of the carrier (referred to as the carrier frequency) and the bandwidth of the carrier.

[0072] In order to increase data transmission rate and reduce latency, CA technology was proposed. CA refers to aggregating multiple continuous or non-continuous carriers into a larger bandwidth. Generally, based on the frequency band where the aggregated carriers are located, CA can be divided into intra-band carrier aggregation (intra-band CA) and inter-band carrier aggregation (inter-band CA). Intra-band CA can be divided into intra-band continuous carrier aggregation and intra-band non-continuous carrier aggregation. Figure 2 2-1, aggregating continuous carrier 1 and carrier 2 on frequency band 1 can be called intra-band continuous carrier aggregation. Figure 2 2-2, aggregating non-contiguous carriers 1 and 2 on frequency band 1 can be called intra-band non-contiguous carrier aggregation. Figure 2 2-3, aggregating carrier 1 on frequency band 1 and carrier 2 on frequency band 2 can be called inter-band CA.

[0073] In the CA technology, a terminal can communicate on multiple cells at the same time, thereby supporting high-speed data transmission. The multiple cells may include a primary cell and at least one secondary cell.

[0074] Among them, the primary cell is the cell where the terminal and the network device perform initial connection establishment, or the cell where the terminal performs radio resource control (RRC) connection reconstruction, or the primary cell executed during the handover process; the primary cell is responsible for the radio resource control RRC communication with the terminal, and the CC in the primary cell is called the primary component carrier (PCC).

[0075] Compared with the primary cell, the secondary cell can provide additional wireless resources. Optionally, multiple secondary cells can be co-site deployed or non-co-site deployed. Among them, co-site deployment can be understood as having two carriers at the same site, such as the same network device, and these two carriers are co-site deployed carriers. The two carriers may belong to different secondary cells respectively. Non-co-site deployment can be understood as being at different sites, for example, the carrier of one network device belongs to one secondary cell, and the carrier of another network device belongs to another secondary cell, and the two network devices are at different sites.

[0076] Generally, in the intra-band CA scenario, the downlink timing of the secondary cell can be the same as the downlink timing of the primary cell. That is to say, the network device may not send SSB on the secondary cell. In the inter-band CA scenario, the downlink timing of CCs on different frequency bands may be different, so the network device may send SSB on the secondary cell so that the terminal can obtain the SSB on the secondary cell through blind detection and synchronize. At the same time, the network device may also send SSB on non-co-site secondary cells so that the terminal can obtain the SSB on non-co-site secondary cells through blind detection and synchronize. It can be seen that in these cases, the terminal needs to obtain the SSB on the secondary cell through blind detection. This will increase the power consumption of the terminal in detecting SSB. Therefore, how to reduce the power consumption of the terminal in detecting SSB has become a technical problem that needs to be solved urgently at the current stage. Based on this, the present application provides Figure 3 or Figure 4 The embodiment shown is used to solve this problem.

[0077] The following is a detailed description of the embodiments of the present application. Specifically, the terminal in the following text may be Figure 1 The terminals involved, the network devices mentioned below can be Figure 1The network devices involved. It should be pointed out that the message names between the network elements or the names of the parameters in the messages in the following embodiments are only examples, and other names may be used in the specific implementation, which is not specifically limited in the embodiments of the present application. The processing performed by the single execution subject (terminal or network device) shown in the embodiments of the present application may also be divided into multiple execution subjects, which may be logically and / or physically separated. For example, the processing performed by the network device may be divided into at least one of the CU, DU and RU.

[0078] like Figure 3 As shown, a method for transmitting SSB on a secondary cell provided in an embodiment of the present application includes but is not limited to the following steps:

[0079] 301. A network device sends configuration information to a terminal, where the configuration information is used to indicate SSB resources in M ​​secondary cells, where M is a positive integer.

[0080] Correspondingly, the terminal receives configuration information from the network device.

[0081] Optionally, the configuration information is used to indicate the SSB resources in the M secondary cells, which can be understood as: the configuration information is used to indicate the SSB resources of each secondary cell in the M secondary cells. The SSB resources here can refer to the above related description, which is not repeated here.

[0082] In a possible implementation manner, the configuration information may be carried in an RRC message or a medium access control-control element (MAC CE).

[0083] 302. The network device sends indication information to the terminal, where the indication information is used to indicate receiving a first SSB on a first secondary cell, where the first secondary cell is one of M secondary cells.

[0084] Correspondingly, the terminal receives the indication information from the network device.

[0085] It should be understood that the first SSB may include the SSB corresponding to the bit value of 1 in ssb-PositionsInBurst in the first secondary cell.

[0086] The indication information is used to indicate that the first SSB is received on the first secondary cell, which can be understood as one of the following, specifically:

[0087] 1. The indication information includes a cell index of the first secondary cell.

[0088] It should be noted that the cell index of a secondary cell mentioned in this application can be used to identify the secondary cell. Optionally, the cell index of the secondary cell can be a physical cell identifier (PCI) or a cell global identity (CGI). Among them, the cell index of the secondary cell can also have other names, such as the cell identifier of the secondary cell, the cell number of the secondary cell, etc., which are not limited in this application.

[0089] 2. The indication information is a bitmap, and one bit in the bitmap corresponds to the first secondary cell. For example, the first bit (i.e., the leftmost bit, or the most significant bit (MSB)) in the bitmap corresponds to secondary cell 1, the second bit corresponds to secondary cell 2, and so on. In other words, different bits in the bitmap correspond to different secondary cells. For example, the cell indexes of the secondary cells correspond to the bits in the bitmap in ascending order. Or, the cell indexes of the secondary cells correspond to the bits in the bitmap in descending order.

[0090] When a bit in the bitmap is set to 0, it means that the corresponding SSB is not transmitted on the secondary cell corresponding to the bit, that is, the network device does not send SSB on the secondary cell, and the terminal does not receive SSB on the secondary cell. When the bit is set to 1, it means that the corresponding SSB is transmitted on the secondary cell corresponding to the bit, that is, the network device sends SSB on the secondary cell, and the terminal receives SSB on the secondary cell. The opposite is also true.

[0091] 3. The indication information can be P bits, and P bits correspond to 2 P states, one of which indicates receiving the first SSB on the first secondary cell. P is a positive integer.

[0092] Optionally, different states corresponding to the P bit may represent different contents, specifically:

[0093] Exemplarily, M is 1, assuming that the first secondary cell is configured with SSB resources. When P is 1, there are two corresponding states, '1' and '0'. '1' can indicate that the first SSB is transmitted, that is, the network device sends the first SSB on the first secondary cell, and the terminal receives the first SSB on the first secondary cell; '0' can indicate that the first SSB is not transmitted, that is, the network device does not send the first SSB on the first secondary cell, and the terminal does not receive the first SSB on the first secondary cell. The opposite is also true.

[0094] As another example, M is 3, assuming that secondary cell 0 to secondary cell 2 are configured with SSB resources. When P is 2, there are 4 corresponding states: '00', '01', '10' and '11'. '00' may indicate that no SSB is transmitted, that is, the network device does not send the corresponding SSB on the three secondary cells, and the terminal does not receive the corresponding SSB on the three secondary cells; '01' may indicate that the network device sends the corresponding SSB on the secondary cell 0, and the terminal receives the corresponding SSB on the secondary cell 0. '10' may indicate that the network device sends the corresponding SSB on the secondary cell 1, and the terminal receives the corresponding SSB on the secondary cell 1. '11' may indicate that the network device sends the corresponding SSB on the secondary cell 2, and the terminal receives the corresponding SSB on the secondary cell 2.

[0095] It should be pointed out that the above are only some examples, and this application does not limit the specific content represented by different states corresponding to the P bit.

[0096] Optionally, the indication information can also be used to indicate receiving a second SSB on a second secondary cell. In this way, the terminal can also receive a second SSB from the network device on the SSB resources in the second secondary cell. The second secondary cell is one of the M secondary cells, and the second secondary cell is different from the first secondary cell. That is, when M is greater than 1, the network device can instruct the terminal to receive SSBs on multiple secondary cells in the M secondary cells, respectively. This application does not limit the number of secondary cells indicated by the network device.

[0097] It should be understood that the second SSB may include the SSB corresponding to the bit value of 1 in ssb-PositionsInBurst in the second secondary cell.

[0098] Optionally, the network device may instruct the terminal to receive SSBs on at least one of the M secondary cells through one or more indication information. Exemplarily, one indication information is used to instruct the terminal to receive SSBs on a part of the M secondary cells, and another indication information is used to instruct the terminal to receive SSBs on another part of the M secondary cells. The number of secondary cells indicated by each indication information may be one or more, which is not limited here.

[0099] It should be noted that, when there are multiple indication information, the network device may send multiple indication information at one time, or send multiple indication information separately in multiple times. The specific implementation method is not limited here.

[0100] The indication information is also used to indicate that the second SSB is received on the second secondary cell, which can be understood as:

[0101] (1) With respect to the above-mentioned method 1, the indication information may further include a cell index of the second secondary cell.

[0102] (2) With respect to the above-mentioned method 2, another bit in the bitmap (the indication information is the bitmap) corresponds to the second secondary cell.

[0103] (3) For the above-mentioned method 3, another state corresponding to the P bit indicates receiving the second SSB on the second secondary cell. For example, when P is 1, it corresponds to two states '1' and '0'. '1' can indicate the transmission of the first SSB, that is, the network device sends the first SSB on the first secondary cell, and the terminal receives the first SSB on the first secondary cell; '0' can indicate the transmission of the second SSB, that is, the network device sends the second SSB on the second secondary cell, and the terminal receives the second SSB on the second secondary cell. The opposite is also true.

[0104] Optionally, the indication information may be carried in, for example, a MAC CE, a message 2 (Msg2) or downlink control information (DCI). Msg2 may be called a random access response (RAR).

[0105] In a possible implementation, the network device may also receive a signal from the terminal, the signal being used to request the network device to send SSB on N secondary cells, the N secondary cells including the first secondary cell, and N being a positive integer. That is, before step 302, the network device may receive a signal from the terminal to trigger the network device to send indication information to the terminal. The signal here may refer to the above-mentioned related description, that is, the signal may be understood as a channel or a WUS, etc., which will not be elaborated here.

[0106] Optionally, when the signal is PRACH and the PRACH is a non-contention PRACH, the indication information may be carried in Msg2, for example.

[0107] Optionally, the N secondary cells are one or more of the M secondary cells. In other words, N is an integer greater than or equal to 1 and less than or equal to M.

[0108] Optionally, the N secondary cells may further include a second secondary cell.

[0109] 303. The network device sends a first SSB to the terminal on the SSB resources in the first secondary cell.

[0110] Correspondingly, the terminal receives the first SSB from the network device on the SSB resource in the first secondary cell. It can be seen that in the above embodiment, the terminal can obtain the M secondary cells configured with SSB resources through the configuration information, and obtain the first SSB received on the first secondary cell among the M secondary cells through the indication information. In this way, the terminal does not need to obtain the first SSB of the first secondary cell through blind detection, which reduces the power consumption of the terminal in detecting SSB and is also beneficial to energy saving of the network device.

[0111] like Figure 4 As shown, another method for transmitting SSB on a secondary cell provided in an embodiment of the present application includes but is not limited to the following steps:

[0112] 401. The terminal sends a first signal to a network device, where the first signal is used to request the network device to send a first SSB on a first secondary cell.

[0113] Correspondingly, the network device receives the first signal from the terminal. The description of the first signal can refer to the above related description, that is, the first signal can be understood as a channel or WUS, etc., which will not be repeated here. The first SSB can also refer to Figure 3 Description of step 302.

[0114] The first secondary cell may be understood as a predefined or preconfigured cell, or a cell indicated by a network device as the first secondary cell. Specifically:

[0115] 1. The first secondary cell is the secondary cell with the smallest or largest cell index among the N secondary cells, where N is a positive integer.

[0116] Among them, the N secondary cells include the secondary cells in which the (terminal) does not receive SSB in the secondary cells configured with SSB resources. It can also be understood as at least one of the following: the N secondary cells include the secondary cells in which the (terminal) cannot perform uplink transmission and / or downlink transmission in the secondary cells configured with SSB resources, the N secondary cells include the secondary cells in which the (terminal) is not synchronized in the secondary cells configured with SSB resources, and the N secondary cells include the secondary cells in which the (terminal) does not obtain the downlink timing of the secondary cells in the secondary cells configured with SSB resources.

[0117] Among them, not receiving the SSB does not mean that it has not been received all the time, because after step 402, the terminal can receive the SSB. For example, if a secondary cell does not send an SSB for a period of time, the terminal does not receive the SSB during this period of time. At this time, the first information can be associated with the secondary cell. After step 402, if the terminal receives the SSB on the secondary cell, the first signal does not need to be associated with the secondary cell. However, after the base station instructs the secondary cell not to send the SSB, the first signal can be associated with the secondary cell again. That is, not receiving the SSB can be understood as not receiving the SSB for a period of time, and this period of time can be understood as the period from after the network device instructs the secondary cell not to send the SSB to before the network device instructs the secondary cell to send the SSB. For example, the network device indicates that the secondary cell does not send the SSB in time slot i, and the network device indicates that the secondary cell sends the SSB in time slot j. This period of time is from time slot i to time slot j, which may include time slot i and / or time slot j, or may not include time slot i and time slot j.

[0118] Optionally, the terminal may receive configuration information from the network device to obtain the secondary cell configured with SSB resources. That is, the configuration information may be used to indicate the SSB resources in at least one secondary cell. In other words, the configuration information may be used to indicate the SSB resources of each secondary cell in at least one secondary cell. The SSB resources here can refer to the above-mentioned related description and will not be repeated here.

[0119] 2. The frequency band index of the frequency band where the first secondary cell is located is the minimum frequency band index or the maximum frequency band index among the frequency bands where the N secondary cells are located.

[0120] It should be pointed out that the above-mentioned method 1 or method 2 can be used alone as an implementation method of the first secondary cell. Alternatively, the above-mentioned method 1 and method 2 can be combined as an implementation method of the first secondary cell. For example, there are multiple secondary cells on the frequency band corresponding to the minimum frequency band index, and the first secondary cell is the secondary cell with the smallest or largest cell index among the multiple secondary cells. That is, the secondary cell with the smallest or largest cell index on the minimum frequency band among the frequency bands corresponding to all secondary cells configured with SSB resources. The minimum frequency band refers to the frequency band with the smallest index. Or, there are multiple secondary cells on the frequency band corresponding to the maximum frequency band index, and the first secondary cell is the secondary cell with the smallest or largest cell index among the multiple secondary cells. That is, the secondary cell with the smallest or largest cell index on the maximum frequency band among the frequency bands corresponding to all secondary cells configured with SSB resources. The maximum frequency band refers to the frequency band with the largest index.

[0121] In addition, the above-mentioned method 1 or method 2 is only some examples, and the first secondary cell can be any one of the N secondary cells, which is not limited in the present application.

[0122] Among them, the first signal is used to request the network device to send the first SSB on the first secondary cell, which can be understood as: the first signal can have an association relationship with the first secondary cell, or the first signal can have an association relationship with the first SSB in the first secondary cell. That is to say, after the network device receives the first signal, it can be informed through the association relationship that the first SSB is sent on the first secondary cell. Optionally, the association relationship can be predefined or preconfigured, or the association relationship can be indicated to the terminal by the network device.

[0123] Optionally, the first signal can also be used to request the network device to send a second SSB on a second secondary cell, where the second secondary cell is one of N secondary cells, and the second secondary cell is different from the first secondary cell. In other words, the first signal can also be associated with the second secondary cell, or the first signal can also be associated with the second SSB in the second secondary cell. That is, after the network device receives the first signal, it can also learn that the second SSB is sent on the second secondary cell through the association relationship between the first signal and the second secondary cell. In this way, the terminal can also receive the second SSB from the network device on the second secondary cell. That is, it can be understood that the first signal is associated with a secondary cell set, including the first secondary cell and the second secondary cell. This application does not limit the number of secondary cells included in the secondary cell set.

[0124] The second secondary cell may be understood as a predefined or preconfigured cell, or a cell indicated by a network device as the second secondary cell. Specifically:

[0125] (1) The second secondary cell is the secondary cell with the smallest or largest cell index among the N secondary cells.

[0126] (2) The frequency band index of the frequency band where the second secondary cell is located is the minimum frequency band index or the maximum frequency band index among the frequency bands where the N secondary cells are located.

[0127] It should be pointed out that the above method (1) or method (2) can be used alone as a method for implementing the second secondary cell. Alternatively, the above method 1 and method 2 can be combined as a method for implementing the second secondary cell. For example, there are multiple secondary cells on the frequency band corresponding to the minimum frequency band index, and the second secondary cell is the secondary cell with the smallest or largest cell index among the multiple secondary cells. That is, the secondary cell with the smallest or largest cell index on the minimum frequency band among the frequency bands corresponding to all secondary cells configured with SSB resources. The minimum frequency band refers to the frequency band with the smallest index. Or, there are multiple secondary cells on the frequency band corresponding to the maximum frequency band index, and the second secondary cell is the secondary cell with the smallest or largest cell index among the multiple secondary cells. That is, the secondary cell with the smallest or largest cell index on the maximum frequency band among the frequency bands corresponding to all secondary cells configured with SSB resources. The maximum frequency band refers to the frequency band with the largest index.

[0128] In addition, the above-mentioned method (1) or method (2) is only some examples. The second secondary cell can be any cell among the N secondary cells that is different from the first secondary cell, and the present application does not limit it.

[0129] 402. The network device sends a first SSB to the terminal in the first secondary cell.

[0130] Correspondingly, the terminal receives the first SSB from the network device in the first secondary cell. For example, the terminal receives the first SSB from the network device on the SSB resource in the first secondary cell.

[0131] It can be seen that in the above embodiment, the terminal can request the network device to send the first SSB on the first secondary cell through the first signal, so that the terminal can receive the first SSB on the first secondary cell requested by it. In this way, the terminal does not need to obtain the first SSB of the first secondary cell through blind detection, which reduces the power consumption of the terminal in detecting SSB and is also beneficial to energy saving of the network device.

[0132] It is understandable that in order to implement the functions in the above embodiments, the network device and the terminal include hardware structures and / or software modules corresponding to the execution of each function. It should be easily appreciated by those skilled in the art that, in combination with the units and method steps of each example described in the embodiments disclosed in this application, the present application can be implemented in the form of hardware or a combination of hardware and computer software. Whether a function is executed in the form of hardware or computer software driving hardware depends on the specific application scenario and design constraints of the technical solution.

[0133] Figure 5 and Figure 6 The following is a schematic diagram of the structure of possible communication devices provided in the embodiments of the present application. These communication devices can be used to implement the functions of the terminal or network device in the above method embodiments, and thus can also achieve the beneficial effects of the above method embodiments. In the embodiments of the present application, the communication device can be as follows: Figure 1 The terminal 120 shown may also be Figure 1 The RAN node 110 (such as a network device) shown may also be a module (such as a chip) applied to a terminal or a RAN node (such as a network device).

[0134] like Figure 5 As shown, the communication device 500 includes a processing unit 510 and a transceiver unit 520. The communication device 500 is used to implement the above Figure 3 or Figure 4 The functions of the terminal or network device in the method embodiment shown in FIG.

[0135] When the communication device 500 is used to implement Figure 3The functions of the terminal in the method embodiment shown are as follows: the transceiver unit 520 is used to receive configuration information from a network device, the configuration information is used to indicate SSB resources in M ​​secondary cells, M is a positive integer. The transceiver unit 520 is also used to receive indication information from the network device, the indication information is used to indicate receiving a first SSB on a first secondary cell, the first secondary cell being one of the M secondary cells. The transceiver unit 520 is also used to receive a first SSB from the network device on the SSB resources in the first secondary cell.

[0136] In a possible implementation, the transceiver unit 520 is further used to send a signal to the network device, where the signal is used to request the network device to send the SSB on N secondary cells, where the N secondary cells include the first secondary cell, and N is a positive integer.

[0137] In a possible implementation, the indication information is further used to indicate receiving a second SSB on a second secondary cell, where the second secondary cell is one of the M secondary cells, and the second secondary cell is different from the first secondary cell. The transceiver unit 520 is further used to receive a second SSB from the network device on an SSB resource in the second secondary cell.

[0138] When the communication device 500 is used to implement Figure 4 The functions of the terminal in the method embodiment shown are: the transceiver unit 520 is used to send a first signal to the network device, the first signal is used to request the network device to send a first SSB on the first secondary cell. The transceiver unit 520 is also used to receive the first SSB from the network device on the first secondary cell.

[0139] In a possible implementation, the first signal is further used to request the network device to send a second SSB on a second secondary cell, where the second secondary cell is one of the N secondary cells and is different from the first secondary cell. The transceiver unit 520 is further used to receive a second SSB from the network device on the second secondary cell.

[0140] When the communication device 500 is used to implement Figure 3 The function of the network device in the method embodiment shown is: the transceiver unit 520 is used to send configuration information to the terminal, the configuration information is used to indicate the synchronization signal block SSB resources in M ​​secondary cells, M is a positive integer. The transceiver unit 520 is also used to send indication information to the terminal, the indication information is used to indicate receiving the first SSB in the first secondary cell, and the first secondary cell is one of the M secondary cells. The transceiver unit 520 is also used to send the first SSB to the terminal on the SSB resource in the first secondary cell.

[0141] In a possible implementation, the transceiver unit 520 is further used to receive a signal from the terminal, where the signal is used to request the network device to send an SSB on N secondary cells, where the N secondary cells include the first secondary cell, and N is a positive integer.

[0142] In a possible implementation, the indication information is further used to indicate receiving a second SSB on a second secondary cell, where the second secondary cell is one of the M secondary cells, and the second secondary cell is different from the first secondary cell. The transceiver unit 520 is further used to send the second SSB to the terminal on the SSB resource in the second secondary cell.

[0143] When the communication device 500 is used to implement Figure 4 The function of the network device in the method embodiment shown is: the transceiver unit 520 is used to receive a first signal from the terminal, the first signal is used to request the network device to send a first SSB on the first secondary cell. The transceiver unit 520 is also used to send the first SSB to the terminal on the first secondary cell.

[0144] In a possible implementation, the first signal is further used to request the network device to send a second SSB on a second secondary cell, where the second secondary cell is one of the N secondary cells and is different from the first secondary cell. The transceiver unit 520 is further used to send a second SSB to the terminal on the second secondary cell.

[0145] For more detailed description of the processing unit 510 and the transceiver unit 520, please refer to Figure 3 or Figure 4 The method embodiment shown is described in detail.

[0146] like Figure 6 As shown, the communication device 600 includes a processor 610 and an interface circuit 620. The processor 610 and the interface circuit 620 are coupled to each other. It is understood that the interface circuit 620 can be a transceiver or an input-output interface. Optionally, the communication device 600 may also include a memory 630 for storing instructions executed by the processor 610 or storing input data required by the processor 610 to run the instructions or storing data generated after the processor 610 runs the instructions. Sometimes, the interface circuit 620 can also be understood as a part of the processor 610, and in this case, the communication device 600 includes the processor 610.

[0147] When the communication device 600 is used to implement Figure 3 or Figure 4 When the method is shown, the processor 610 is used to implement the function of the above-mentioned processing unit 510, and the interface circuit 620 is used to implement the function of the above-mentioned transceiver unit 520.

[0148] When the above-mentioned communication device is a chip applied to a terminal, the terminal chip implements the functions of the terminal in the above-mentioned method embodiment. The terminal chip receives information from the base station, which can be understood as the information is first received by other modules in the terminal (such as a radio frequency module or an antenna), and then sent to the terminal chip by these modules. The terminal chip sends information to the base station, which can be understood as the information is first sent to other modules in the terminal (such as a radio frequency module or an antenna), and then sent to the base station by these modules.

[0149] When the above-mentioned communication device is a chip applied to a base station, the base station chip implements the function of the base station in the above-mentioned method embodiment. The base station chip receives information from the terminal, which can be understood as the information is first received by other modules in the base station (such as a radio frequency module or an antenna), and then sent to the base station chip by these modules. The base station chip sends information to the terminal, which can be understood as the information is sent to other modules in the base station (such as a radio frequency module or an antenna), and then sent to the terminal by these modules.

[0150] In the present application, when entity A sends information to entity B, it can be that A sends it directly to B, or that A sends it to B indirectly through other entities. Similarly, when entity B receives information from entity A, it can be that entity B directly receives the information sent by entity A, or that entity B indirectly receives the information sent by entity A through other entities. Entities A and B here can be RAN nodes or terminals, or modules inside the RAN nodes or terminals. The sending and receiving of information can be information interaction between a RAN node and a terminal, for example, information interaction between a base station and a terminal; the sending and receiving of information can also be information interaction between two RAN nodes, for example, information interaction between a CU and a DU; the sending and receiving of information can also be information interaction between different modules inside a device, for example, information interaction between a terminal chip and other modules of the terminal, or information interaction between a base station chip and other modules in the base station.

[0151] It is understandable that the processor in the embodiments of the present application may be a central processing unit (CPU), or other general-purpose processors, digital signal processors (DSP), application-specific integrated circuits (ASIC), field programmable gate arrays (FPGA) or other programmable logic devices, transistor logic devices, hardware components or any combination thereof. The general-purpose processor may be a microprocessor or any conventional processor.

[0152] The method steps in the embodiments of the present application can be implemented in hardware or in software instructions that can be executed by a processor. The software instructions can be composed of corresponding software modules, and the software modules can be stored in random access memory, flash memory, read-only memory, programmable read-only memory, erasable programmable read-only memory, electrically erasable programmable read-only memory, register, hard disk, mobile hard disk, CD-ROM or any other form of storage medium known in the art. An exemplary storage medium is coupled to the processor so that the processor can read information from the storage medium and write information to the storage medium. The storage medium can also be a component of the processor. The processor and the storage medium can be located in an ASIC. In addition, the ASIC can be located in a base station or a terminal. The processor and the storage medium can also be present in a base station or a terminal as discrete components.

[0153] In the above embodiments, it can be implemented in whole or in part by software, hardware, firmware or any combination thereof. When implemented by software, it can be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer programs or instructions. When the computer program or instruction is loaded and executed on a computer, the process or function described in the embodiment of the present application is executed in whole or in part. The computer may be a general-purpose computer, a special-purpose computer, a computer network, a network device, a user device or other programmable device. The computer program or instruction may be stored in a computer-readable storage medium, or transmitted from one computer-readable storage medium to another computer-readable storage medium, for example, the computer program or instruction may be transmitted from one website site, computer, server or data center to another website site, computer, server or data center by wired or wireless means. The computer-readable storage medium may be any available medium that a computer can access or a data storage device such as a server, data center, etc. that integrates one or more available media. The available medium may be a magnetic medium, for example, a floppy disk, a hard disk, a tape; it may also be an optical medium, for example, a digital video disc; it may also be a semiconductor medium, for example, a solid-state hard disk. The computer-readable storage medium may be a volatile or nonvolatile storage medium, or may include both volatile and nonvolatile types of storage media.

[0154] In the various embodiments of the present application, unless otherwise specified or provided in a logical conflict, the terms and / or descriptions between the different embodiments are consistent and may be referenced to each other, and the technical features in the different embodiments may be combined to form new embodiments according to their inherent logical relationships.

[0155] In the present application, "at least one" means one or more, and "more than one" means two or more. "And / or" describes the association relationship of associated objects, indicating that three relationships may exist. For example, A and / or B can mean: A exists alone, A and B exist at the same time, and B exists alone, where A and B can be singular or plural. In the text description of the present application, the character " / " generally indicates that the previous and next associated objects are in an "or" relationship; in the formula of the present application, the character " / " indicates that the previous and next associated objects are in a "division" relationship. "Including at least one of A, B and C" can mean: including A; including B; including C; including A and B; including A and C; including B and C; including A, B and C.

[0156] In addition, in order to clearly describe the technical solutions of the embodiments of the present application, in the embodiments of the present application, words such as "first" and "second" are used to distinguish between network elements and identical or similar items with substantially the same functions. Those skilled in the art can understand that words such as "first" and "second" do not limit the quantity and execution order, and words such as "first" and "second" do not necessarily limit the difference.

[0157] It is understood that the various numbers involved in the embodiments of the present application are only for the convenience of description and are not used to limit the scope of the embodiments of the present application. The size of the sequence number of the above-mentioned processes does not mean the order of execution, and the execution order of each process should be determined by its function and internal logic.

Claims

1. A method for transmitting SSB on a secondary cell, It is characterized in that include: Receiving configuration information from a network device, where the configuration information is used to indicate synchronization signal block (SSB) resources in M ​​secondary cells, where M is a positive integer; receiving indication information from the network device, where the indication information is used to indicate receiving a first SSB on a first secondary cell, where the first secondary cell is one of the M secondary cells; The first SSB is received from the network device on the SSB resources in the first secondary cell.

2. The method according to claim 1, It is characterized in that The indication information includes a cell index of the first secondary cell.

3. The method according to claim 1, It is characterized in that The indication information is a bitmap, and one bit in the bitmap corresponds to the first secondary cell.

4. The method according to any one of claims 1 to 3, It is characterized in that The method further comprises: A signal is sent to the network device, where the signal is used to request the network device to send an SSB on N secondary cells, where the N secondary cells include the first secondary cell, and N is a positive integer.

5. The method according to any one of claims 1 to 4, It is characterized in that The method further comprises: The indication information is further used to indicate receiving a second SSB on a second secondary cell, where the second secondary cell is one of the M secondary cells, and the second secondary cell is different from the first secondary cell; Receive the second SSB from the network device on the SSB resources in the second secondary cell.

6. A method for transmitting SSB on a secondary cell, It is characterized in that include: Sending configuration information to the terminal, where the configuration information is used to indicate synchronization signal block SSB resources in M ​​secondary cells, where M is a positive integer; Sending indication information to the terminal, where the indication information is used to indicate receiving a first SSB on a first secondary cell, where the first secondary cell is one of the M secondary cells; The first SSB is sent to the terminal on the SSB resources in the first secondary cell.

7. The method according to claim 6, It is characterized in that The indication information includes a cell index of the first secondary cell.

8. The method according to claim 6, It is characterized in that The indication information is a bitmap, and one bit in the bitmap corresponds to the first secondary cell.

9. The method according to any one of claims 6 to 8, It is characterized in that The method further comprises: A signal is received from the terminal, where the signal is used to request the network device to send an SSB on N secondary cells, where the N secondary cells include the first secondary cell, and N is a positive integer.

10. The method according to any one of claims 6 to 9, It is characterized in that The method further comprises: The indication information is further used to indicate receiving a second SSB on a second secondary cell, where the second secondary cell is one of the M secondary cells, and the second secondary cell is different from the first secondary cell; The second SSB is sent to the terminal on the SSB resources in the second secondary cell.

11. A communication device, It is characterized in that The method comprises a unit or a module for implementing the method according to any one of claims 1 to 10.

12. A communication device, It is characterized in that The communication device comprises at least one processor; wherein the at least one processor is configured to execute the method according to any one of claims 1 to 10.

13. A communication system, It is characterized in that The communication system includes terminal equipment and network equipment; The terminal device is used to perform the method according to any one of claims 1 to 5; The network device is used to execute the method according to any one of claims 6 to 10.

14. A computer-readable storage medium, It is characterized in that The computer-readable storage medium stores computer instructions, which, when executed, cause the computer to perform the method according to any one of claims 1 to 10.

15. A computer program product, It is characterized in that The computer program product comprises: a computer program code, and when the computer program code is executed by a computer, the computer is caused to perform the method according to any one of claims 1 to 10.

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