Communication methods and communication apparatus

Abstract

The present application provides communication methods and a communication apparatus. A communication method comprises: a terminal receiving a synchronization signal block (SSB), wherein the SSB is located in a first frequency-domain unit of a first cell, a frequency-domain source of the first cell consists of m frequency-domain units, m being an integer greater than 1, the m frequency-domain units are non-adjacent in frequency domain, the SSB indicates a resource carrying control information, and the control information is used for scheduling a system information block (SIB1); furthermore, the terminal receiving the SIB1 on the basis of the SSB. In the method, a frequency-domain resource of one cell consists of a plurality of frequency-domain units that are non-adjacent in frequency domain, and a terminal can use multiple frequency spectrum segments upon accessing one cell, thereby facilitating the reduction in the operation complexity of terminals.

Description

Communication method and communication device

[0001] This application claims priority to the Chinese patent application with application number 202410137235.9 filed with the State Intellectual Property Office of China on January 30, 2024, and priority to the Chinese patent application with the invention name “A Communication Method and Communication Device”, all contents of which are incorporated by reference into this application. Technical Field

[0002] The present application relates to the field of communication technology, and in particular to a communication method and a communication device. Background Art

[0003] A larger transmission bandwidth provides greater network capacity and higher transmission rates. However, in practice, due to limitations in deployed spectrum bandwidth resources and terminal processing capabilities, large-bandwidth contiguous spectrum resources are extremely scarce. This means that the bandwidth of a single carrier is limited. To address this issue, carrier aggregation (CA) technology has been introduced into communications standards. CA aggregates two or more component carriers (CCs) to serve terminals, supporting greater transmission bandwidth.

[0004] In a CA scenario, a terminal has multiple serving cells, that is, there may be multiple cells providing services to the terminal. The multiple serving cells of the terminal device include a primary cell (PCell) and one or more secondary cells (SCells).

[0005] That is to say, when a terminal needs to use multiple spectrum segments, the terminal needs to access multiple cells at the same time, which increases the operational complexity of the communication device. Summary of the Invention

[0006] The embodiments of the present application provide a communication method and a communication device, which are conducive to reducing the operational complexity of the communication equipment when the terminal needs to use multiple spectrum segments.

[0007] In a first aspect, the present application provides a communication method, which is executed by a terminal or a module applied to a terminal. Taking the terminal executing the method as an example, the method includes: the terminal receives a synchronization signal block SSB, the SSB is located in a first frequency domain unit of a first cell, the frequency domain resources of the first cell are composed of m frequency domain units, m is an integer greater than 1, the m frequency domain units are non-adjacent in the frequency domain, the SSB indicates a resource of control information, and the control information is used to schedule a system information block SIB1; further, the terminal receives SIB1.

[0008] Compared with the method in which the terminal can only use multiple spectrum segments by accessing multiple cells, in the method described in the first aspect, the frequency domain resources of a cell are composed of multiple frequency domain units that are not adjacent in the frequency domain. The terminal can use multiple spectrum segments by accessing one cell. Through the method described in the first aspect, the terminal does not need to synchronize, configure, measure, etc. on multiple cells, which is conducive to reducing the operational complexity of the terminal.

[0009] In a second aspect, the present application provides a communication method, which is executed by a network device or a module applied to a network device. Taking the network device executing the method as an example, the method includes: the network device sends a synchronization signal block SSB, the SSB is located in a first frequency domain unit of a first cell, the frequency domain resources of the first cell are composed of m frequency domain units, m is an integer greater than 1, and the m frequency domain units are non-adjacent in the frequency domain, the SSB indicates the resource of control information, and the control information is used to schedule the system information block SIB1; further, the network device sends SIB1.

[0010] In the method described in the second aspect, the frequency domain resources of a cell are composed of multiple frequency domain units that are not adjacent in the frequency domain. When the terminal needs to use multiple spectrum segments, the network device can enable the terminal to use multiple spectrum segments by managing one cell. Compared with the method in which the network device enables the terminal to use multiple spectrum segments by managing multiple cells, it is beneficial to reduce the complexity of network equipment operation and maintenance management.

[0011] In combination with the method provided in the first aspect or the second aspect, in a possible implementation manner, the m frequency domain units correspond to the same downlink carrier, or the m frequency domain units correspond to m downlink carriers.

[0012] In conjunction with the method provided in the first aspect or the second aspect, in one possible implementation, the SSB includes first indication information, where the first indication information is used to indicate the absolute frequency point number of the starting frequency domain position of control resource set CORESET 0 and the bandwidth of CORESET 0; wherein CORESET 0 is the CORESET used to schedule SIB1. When the distance between the starting frequency domain position of CORESET 0 and the starting frequency domain position of the SSB is large, indicating the absolute frequency point number of the starting frequency domain position of CORESET 0 is beneficial for saving signaling overhead, compared to indicating the starting frequency domain position of CORESET 0 by indicating an offset value from the starting frequency domain position of the SSB.

[0013] In combination with the method provided in the first aspect or the second aspect, in a possible implementation manner, SIB1 includes first configuration information, where the first configuration information is used to indicate a starting position and bandwidth of each frequency domain unit in the m frequency domain units.

[0014] In combination with the method provided in the first aspect or the second aspect, in one possible implementation, the first configuration information includes second indication information and third indication information, the second indication information is used to indicate one or m frequency reference points corresponding to the m frequency domain units, and the third indication information is used to indicate the first offset value information corresponding to each frequency domain unit in the m frequency domain units, and the first offset value information indicates the offset between the starting position of the frequency domain unit and the frequency reference point corresponding to the frequency domain unit.

[0015] In combination with the method provided in the first aspect or the second aspect, in one possible implementation, the second indication information indicates the absolute frequency point number of each frequency reference point in the one or m frequency reference points, or the second indication information indicates the second offset value information corresponding to each frequency reference point in the one or m frequency reference points, and the second offset value information indicates the offset between the frequency reference point and the SSB.

[0016] In combination with the method provided in the first aspect or the second aspect, in a possible implementation manner, the first offset value information indicates an offset value and an offset direction, and / or the second offset value information indicates an offset value and an offset direction.

[0017] In a third aspect, the present application provides a communication device, which may be a terminal, a device in a terminal, or a device that can be used in conjunction with a terminal. The communication device may also be a chip system. The communication device may execute the method described in the first aspect. The functions of the communication device may be implemented by hardware, or by hardware executing corresponding software implementations. The hardware or software includes one or more units or modules corresponding to the above functions. The units or modules may be software and / or hardware. The operations and beneficial effects performed by the communication device may refer to the method and beneficial effects described in the first aspect above.

[0018] In a fourth aspect, the present application provides a communication device, which may be a network device, a device in a network device, or a device that can be used in conjunction with a network device. The communication device may also be a chip system. The communication device may execute the method described in the second aspect. The functions of the communication device may be implemented by hardware, or by hardware executing corresponding software implementations. The hardware or software includes one or more units or modules corresponding to the above functions. The units or modules may be software and / or hardware. The operations and beneficial effects performed by the communication device may refer to the method and beneficial effects described in the second aspect above.

[0019] In a fifth aspect, the present application provides a communication device, which includes a processor and an interface circuit, wherein the interface circuit is used to receive signals from other communication devices outside the communication device and transmit them to the processor or send signals from the processor to other communication devices outside the communication device, and the processor is used to implement the method as described in the first aspect through a logic circuit or executing code instructions, or the processor is used to implement the method as described in the second aspect through a logic circuit or executing code instructions.

[0020] In a sixth aspect, the present application provides a computer-readable storage medium, in which a computer program or instruction is stored. When the computer program or instruction is executed by a communication device, the method described in the first aspect or the method described in the second aspect is implemented.

[0021] In a seventh aspect, the present application provides a computer program product comprising instructions, which, when a communication device reads and executes the instructions, causes the communication device to execute the method as described in the first aspect, or causes the communication device to execute the method as described in the second aspect.

[0022] In an eighth aspect, the present application provides a communication system, comprising a communication device for executing the method described in the first aspect above, and a communication device for executing the method described in the second aspect above. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] FIG1 is a schematic diagram of a communication system provided in an embodiment of the present application;

[0024] FIG2 is a schematic diagram of carrier aggregation provided in an embodiment of the present application;

[0025] FIG3 is a schematic structural diagram of an SSB provided in an embodiment of the present application;

[0026] FIG4 is a flow chart of a communication method provided in an embodiment of the present application;

[0027] FIG5 is a schematic diagram of a frequency reference point provided in an embodiment of the present application;

[0028] FIG6 is a schematic diagram of offset value information provided in an embodiment of the present application;

[0029] FIG7 is a schematic structural diagram of a communication device provided in an embodiment of the present application;

[0030] FIG8 is a schematic structural diagram of another communication device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0031] In order to facilitate a detailed understanding of the embodiments of the present application, the system architecture involved in the embodiments of the present application is first introduced below.

[0032] FIG1 is a schematic diagram of the architecture of a communication system 1000 used in an embodiment of the present application. As shown in FIG1 , the communication system 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 (e.g., 110a and 110b in FIG1 , collectively referred to as 110), and may also include at least one terminal (e.g., 120a-120j in FIG1 , collectively referred to as 120). The RAN 100 may also include other RAN nodes, such as wireless relay devices and / or wireless backhaul devices (not shown in FIG1 ). The terminal 120 is wirelessly connected to the RAN node 110, and the RAN node 110 is wirelessly or wiredly connected to the core network 200. The core network devices in the core network 200 and the RAN node 110 in the RAN 100 may be independent and different physical devices, or they may be the same physical device that integrates the logical functions of the core network devices and the logical functions of the RAN nodes. Terminals and RAN nodes may be connected to each other via wired or wireless means. It should be noted that the RAN node 110 may also be referred to as a network device 110 in the following text.

[0033] RAN100 may be an evolved universal terrestrial radio access (E-UTRA) system, a new radio (NR) system, or a future radio access system defined in the 3rd Generation Partnership Project (3GPP). RAN100 may also include two or more of the aforementioned different radio access systems. RAN100 may also be an open RAN (O-RAN).

[0034] A RAN node, also known as a radio access network device, RAN entity, or access node, facilitates wireless access to a communication system by a terminal. 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 fifth-generation (5G) mobile communication system, a next-generation base station in a sixth-generation (6G) mobile communication system, or a base station in a future mobile communication system. A RAN node can be a macro base station (such as 110a in Figure 1), a micro base station, an indoor station (such as 110b in Figure 1), a relay node, or a donor node.

[0035] In another application scenario, multiple RAN nodes can collaborate to help terminals achieve wireless access, with different RAN nodes implementing portions of the base station's functions. For example, a RAN node can be a centralized unit (CU), a distributed unit (DU), or a radio unit (RU). The CU implements the base station's radio resource control protocol and packet data convergence protocol (PDCP) functions, as well as the service data adaptation protocol (SDAP) functions. The DU implements the base station's radio link control layer and medium access control (MAC) layer functions, as well as some or all of the physical layer functions. For detailed descriptions of each of the above protocol layers, please refer to the relevant 3GPP technical specifications. The RU can be used to implement the transmission and reception of radio frequency signals. The CU and DU can be two independent RAN nodes, or they can be integrated into the same RAN node, such as in a baseband unit (BBU). The RU can be included in radio frequency equipment, 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.

[0036] In different systems, RAN nodes may have different names. For example, in an O-RAN system, a CU may be called an open CU (O-CU), a DU may be called an open DU (O-DU), and a RU may be called an open RU (O-RU). The RAN node in the embodiments of the present application may be implemented by a software module, a hardware module, or a combination of a software module and a hardware module. For example, the RAN node may be a server loaded with the corresponding software module. 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.

[0037] A terminal is a device with wireless transceiver capabilities that can send signals to a base station or receive signals from a base station. A terminal may also be referred to as a terminal device, user equipment (UE), mobile station, mobile terminal, etc. Terminals can be widely used in various scenarios, such as device-to-device (D2D), vehicle-to-everything (V2X) communication, machine-type communication (MTC), Internet of Things (IoT), virtual reality, augmented reality, industrial control, autonomous driving, telemedicine, smart grid, smart furniture, smart office, smart wearable, smart transportation, smart city, etc. A terminal can be a mobile phone, tablet computer, computer with wireless transceiver capabilities, wearable device, vehicle, airplane, ship, robot, robotic arm, smart home device, etc. The embodiments of this application do not limit the specific technology and specific device form adopted by the terminal.

[0038] Base stations and terminals can be fixed or mobile. They can be deployed on land, indoors or outdoors, handheld or vehicle-mounted; on water; or on aircraft, balloons, and satellites. The embodiments of this application do not limit the application scenarios of base stations and terminals.

[0039] The roles of base stations and terminals can be relative. For example, the helicopter or drone 120i in Figure 1 can be configured as a mobile base station. To terminals 120j accessing the wireless access network 100 via 120i, terminal 120i is a base station. However, to base station 110a, 120i is a terminal, meaning that communication between 110a and 120i occurs via a wireless air interface protocol. Of course, communication between 110a and 120i can also occur via a base station-to-base station interface protocol. In this case, 120i is also a base station relative to 110a. Therefore, base stations and terminals can be collectively referred to as communication devices. 110a and 110b in Figure 1 can be referred to as communication devices with base station functionality, while 120a-120j in Figure 1 can be referred to as communication devices with terminal functionality.

[0040] Communication between base stations and terminals, between base stations, and between terminals can be carried out through authorized spectrum, unauthorized spectrum, or both; communication can be carried out 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.

[0041] 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 that includes the base station functions. The control subsystem that includes the base station functions 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 modem) in the terminal, or by a device that includes the terminal functions.

[0042] In this application, a base station sends downlink signals or downlink information to a terminal, and the downlink information is carried on a downlink channel; the terminal sends uplink signals or uplink information to the base station, and the uplink information is carried on an uplink channel. In order to communicate with the base station, the terminal needs to establish a wireless connection with the cell controlled by the base station. The cell with which the terminal has established a wireless connection is called the serving cell of the terminal. When the terminal communicates with the serving cell, it will also be subject to interference from signals in neighboring cells.

[0043] In the embodiments of the present application, the time domain symbols may be orthogonal frequency division multiplexing (OFDM) symbols or discrete Fourier transform spread OFDM (DFT-s-OFDM) symbols. Unless otherwise specified, the symbols in the embodiments of the present application refer to time domain symbols.

[0044] It can be understood that in the embodiments of the present application, PDCCH is only an example of a downlink control channel. 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.

[0045] In order to facilitate understanding of the relevant contents of the embodiments of the present application, some of the terms involved in the embodiments of the present application are explained below. This part is only for ease of understanding and cannot be regarded as a disclosure or specific limitation of the technical solution of the present application.

[0046] 1. Cell

[0047] A cell is a set of resources managed by a base station, including frequency domain resources and spatial domain resources. The frequency domain resources of a cell include uplink frequency domain resources and / or downlink frequency domain resources; the spatial domain resources of a cell can be the spatial domain resources corresponding to a beam or a group of beams, and can also be understood as a cell corresponding to a specific physical coverage area. In an embodiment of the present application, different cells can be managed by different base stations. For example, cell #1 and cell #2 can be managed by different base stations. In this case, it can be said that cell #1 and cell #2 do not share the same site. Cell #1 and cell #2 can also be managed by the same base station and have the same baseband processing unit and / or radio frequency processing unit. This application does not specifically limit this.

[0048] 2. CA

[0049] As shown in Figure 2, CA technology aggregates two or more cells to support greater transmission bandwidth. In other words, CA can achieve spectrum resource integration, aggregating spectrum resources in the same or different frequency bands for terminals to use, thereby improving overall network resource utilization.

[0050] When CA is configured for a terminal, the terminal may have multiple serving cells, including one PCell and at least one SCell. PCell is the cell where the terminal and the network device establish an initial connection, or where the terminal reestablishes the radio resource control (RRC) connection. PCell is responsible for RRC communication with the terminal, and the CC corresponding to PCell is called the primary component carrier (PCC). SCell is added / modified / released through the RRC connection reconfiguration message after the initial security activation procedure; SCell is used to provide additional radio resources, and there is no RRC communication between the SCell and the terminal.

[0051] It should be noted that in the CA scenario, it can support aggregation of cells with the same subcarrier spacing (SCS), and it can also support aggregation of cells with different SCSs.

[0052] 3. Physical downlink control channel (PDCCH)

[0053] PDCCH is transmitted in the form of control channel element (CCE), that is, CCE is the smallest resource unit for PDCCH transmission. A PDCCH can include one or more CCEs. The number of CCEs included in a PDCCH is determined by the aggregation level (AL). For details, see Table 1.

[0054] Table 1

[0055] Among them, one CCE can transmit one downlink control information (DCI). If the terminal device is far away and the signal is poor, it cannot demodulate the PDCCH. Therefore, it is necessary to increase the aggregation level to improve the reception performance of the PDCCH so that the remote terminal device can also successfully demodulate the PDCCH. One CCE includes 6 resource element groups (REGs). One REG occupies one symbol in the time domain and one resource block (RB) in the frequency domain. One CCE includes 72 resource elements (REs).

[0056] 4. Control resource set (CORESET)

[0057] CORESET represents the time-frequency resource set used to carry PDCCH. A CORESET includes multiple RBs in the frequency domain and can be expressed as It can be indicated by the frequency domain resources in the control resource set information element (IE) of the higher-level parameter. A CORESET includes 1, 2 or 3 symbols in the time domain and can be represented as It can be indicated by the duration in the high-level parameter control resource set IE. When the high-level parameter duration = 3, that is, the number of CORESET symbols indicated by duration is 3,

[0058] 5. Synchronization signal block (SSB)

[0059] It should be noted that the SSB mentioned in this application can also be called a synchronization signal / physical broadcast channel (SS / PBCH) block. Typically, an SSB consists of a primary synchronization signal (PSS), a secondary synchronization signal (SSS) and a physical broadcast channel (PBCH). An SSB occupies 4 consecutive OFDM symbols in the time domain and 20 consecutive resource blocks (RBs) in the frequency domain. The first symbol of the SSB is the PSS, and the third symbol is the SSS. Both the PSS and SSS occupy 127 subcarriers. The PBCH is distributed from the 2nd to the 4th symbols of the SSB. In the 2nd and 4th symbols, the PBCH occupies 240 subcarriers. On both sides of the SSS of the 3rd symbol, a part of the RE is not used. The subcarrier positions occupied by PSS, SSS and PBCH in an SSB are shown in Figure 3.

[0060] SSB is mainly used for cell access. That is, the terminal receives the master information block (MIB) through the SSB, and then the terminal obtains the system information block 1 (SIB1) associated with the SSB according to the MIB and accesses the cell based on the SIB1. In addition, SSB can also be used by the terminal to perform time-frequency tracking (or time-frequency synchronization), beam management, radio resource management (RRM) measurement, radio link monitoring (RLM) measurement, channel state information (CSI) measurement, etc.

[0061] Typically, a cell contains one downlink carrier. If a terminal accesses only one cell, it can only use the frequency domain resources of that cell's downlink carrier. If a terminal requires access to multiple spectrum segments, it must simultaneously access multiple cells. This requires independent synchronization, configuration, and measurement in each cell, significantly increasing terminal complexity. Furthermore, for network equipment, each of these multiple cells is managed independently, and network-side O&M complexity increases exponentially with the number of cells.

[0062] In order to reduce the operational complexity of a terminal or network device in scenarios where a terminal needs to use multiple spectrum segments, the present application provides a communication method and a communication device. The communication method and the communication device provided in the embodiments of the present application are described in detail below with reference to the accompanying drawings.

[0063] Please refer to Figure 4, which is a flow chart of a communication method provided by an embodiment of the present application. As shown in Figure 4, the communication method includes the following steps S401 to S402. The execution subject of the method shown in Figure 4 is illustrated by taking the terminal and the network device as an example. It can be understood that the execution subject of the method shown in Figure 4 can also be a module in the terminal (for example, a chip) and a module in the network device (for example, a chip, or a CU, or a DU). Wherein:

[0064] S401. A network device sends an SSB, where the SSB is located in a first frequency domain unit of a first cell. The frequency domain resources of the first cell consist of m frequency domain units, where m is an integer greater than 1.

[0065] Accordingly, the terminal receives the SSB. That is to say, the frequency domain resources of the first cell are composed of m frequency domain units, the m frequency domain units are not adjacent in the frequency domain, and the frequency domain resources within each frequency domain unit of the m frequency domain units are continuous. It should be noted that the size of each frequency domain unit in the m frequency domain units can be different or the same. The network device broadcasts the SSB using the frequency domain resources of one frequency domain unit among the m frequency domain units; or, the network device broadcasts m SSBs using the frequency domain resources of the m frequency domain units respectively, and the frequency domain unit of each frequency domain unit corresponds to one SSB. Furthermore, the terminal receives the SSB broadcast by the network device through blind detection, and records the frequency domain unit where the SSB received by the terminal device is located as the first frequency domain unit.

[0066] In a possible implementation, the m frequency domain units correspond to k frequency bands, where k is a positive integer; the m frequency domain units may be adjacent or non-adjacent in the frequency domain. Exemplarily, when k is an integer greater than 1, that is, when the m frequency domain units belong to different frequency bands, the m frequency domain units are non-adjacent in the frequency domain; when k is 1, that is, when the m frequency domain units belong to the same frequency band, the m frequency domain units may be adjacent or non-adjacent in the frequency domain; when k is less than m, that is, some of the m frequency domain units belong to the same frequency band, then the m frequency domain units may not be all adjacent, or may be partially adjacent and partially non-adjacent, that is, multiple frequency domain units in the same frequency band are adjacent, and different frequency domain units in different frequency bands are non-adjacent.

[0067] It should be noted that, for the sake of ease of description, the following text will use the example of a network device using one of the m frequency domain units (i.e., the first frequency domain unit) to send an SSB as an example, which should not be regarded as a specific limitation of the present application. It should also be noted that, when the network device uses the frequency domain resources of the m frequency domain units to broadcast m SSBs respectively, the synchronization signals (including PSS and SSS) in the m SSBs may be the same or different; and / or, the loads of the PBCHs in the m SSBs may be the same or different, for example, the information indicated by the subcarrier offset field (i.e., ssb-SubcarrierOffset) in the PBCH of the m SSBs or the configuration information of the PDCCH used to schedule SIB1 (i.e., pdcch-ConfigSIB1) may be different. Optionally, when the synchronization signals in the m SSBs are the same, different terminal devices accessing the first cell through different SSBs in the m SSBs anchor the same physical cell identities (PCI); when the synchronization signals in the m SSBs are different, different terminal devices accessing the first cell through different SSBs in the m SSBs anchor different PCIs.

[0068] In one possible implementation, the m frequency domain units correspond to the same downlink carrier, that is, the first cell includes a non-continuous downlink carrier, and the frequency domain resources of the downlink carrier are composed of the m frequency domain units; or, the m frequency domain units correspond to m downlink carriers, that is, the first cell includes m downlink carriers, and the frequency domain resources of the m downlink carriers are different.

[0069] In one possible implementation, the first cell includes, in addition to m frequency domain units, n frequency domain units for uplink transmission (referred to as uplink frequency domain units for ease of distinction). Optionally, the n uplink frequency domain units correspond to l frequency bands. n and l are positive integers.

[0070] Exemplarily, the frequency band combination information of the first cell is shown in Table 2. The frequency band combination information includes but is not limited to one or more of the NR operating band combination, the synchronization signal block subcarrier spacing, the synchronization signal block pattern, or the global synchronization channel number range.

[0071] Table 2

[0072] In a possible implementation, the SSB includes first indication information, and the first indication information is used to indicate the absolute frequency point number of the starting frequency domain position of CORESET 0 and the bandwidth of the CORESET 0. The CORESET 0 is the CORESET used to schedule the SIB1. It should be noted that the CORESET 0 mentioned in this application can also be referred to as CORESET#0. For relevant explanations of the CORESET#0, please refer to protocol TS 38.300. Alternatively, the CORESET 0 mentioned in this application can also be understood as the CORESET corresponding to the type 0 physical downlink control channel common search space (type 0 PDCCH common search space, Type0-PDCCH CSS) set or the CORESET with an index of 0.

[0073] For example, the MIB carried by the PBCH in the SSB includes first indication information, which is pdcch-ConfigSIB1. The pdcch-ConfigSIB1 is used to indicate the absolute frequency point number of the starting frequency domain position of CORESET 0 and the bandwidth of CORESET 0. After obtaining the first indication information through the SSB, the terminal determines the position of CORESET 0 and receives the DCI for scheduling SIB1 on CORESET 0. It can also be understood that the SSB indicates the resource carrying the DCI, and the DCI is used to schedule SIB1.

[0074] It should be noted that the present application is described by taking an indication information (i.e., the first indication information) in the SSB as an example to indicate the absolute frequency point number of the starting frequency domain position of CORESET 0 and the bandwidth of the CORESET 0, and should not be regarded as a specific limitation of the present application. That is to say, in the solution provided by the present application, the absolute frequency point number of the starting frequency domain position of the CORESET 0 and the bandwidth of the CORESET 0 can also be indicated respectively by multiple indication information (for example, recorded as the first indication information and the fifth indication information). For example, the MIB carried by the PBCH in the SSB includes indication information #1 and indication information #2, where the indication information #1 indicates the absolute frequency point number of the starting frequency domain position of CORESET 0, and the indication information #2 indicates the bandwidth of CORESET 0.

[0075] It can be understood that the network device can limit the frequency domain position of CORESET 0 to be located in any frequency domain unit among the m frequency domain units through the first indication information.

[0076] S402: The network device sends SIB1.

[0077] Accordingly, the terminal receives SIB1. It can be understood that the terminal receives the DCI scheduling SIB1 based on the position of CORESET 0 indicated by the first indication information in the SSB. Furthermore, the terminal receives SIB1 based on the DCI. Furthermore, the terminal can also access the first cell based on the SIB1.

[0078] SIB1 is used to configure the frequency domain units of the first cell. The following describes in detail the process of the terminal acquiring m frequency domain units of the first cell in the following three cases based on the content of SIB1 used to configure the frequency domain units of the first cell.

[0079] Case 1: The SIB1 includes first configuration information, where the first configuration information is used to indicate a starting position and a bandwidth of each of the m frequency domain units.

[0080] Among them, the first configuration information includes second indication information and third indication information, the second indication information is used to indicate one or m frequency reference points corresponding to the m frequency domain units, and the third indication information is used to indicate the first offset value information corresponding to each frequency domain unit in the m frequency domain units, and the first offset value information indicates the offset between the starting position of the frequency domain unit and the frequency reference point corresponding to the frequency domain unit.

[0081] It can be understood that when the m frequency domain units can correspond to one frequency reference point, the frequency reference point can be called a common frequency reference point or common Point A. When the m frequency domain units can correspond to m frequency reference points, the frequency reference point can be called an independent frequency reference point.

[0082] In a possible implementation, the present application provides two ways of indicating the frequency reference point corresponding to the frequency domain unit: Method 1, indicating the frequency reference point by indicating the absolute frequency point number of the frequency reference point; Method 2, indicating the frequency reference point by indicating the offset between the frequency reference point and the SSB. That is, the second indication information is used to indicate the absolute frequency point number of each frequency reference point in the one or m frequency reference points, or the second indication is the second offset value information corresponding to each frequency reference point in the one or m frequency reference points, and the second offset value information indicates the offset between the frequency reference point and the SSB. It should be noted that the offset between the frequency reference point and the SSB mentioned in the present application includes but is not limited to any of the following understandings: ①, the offset between the frequency reference point and the frequency domain starting position of the SSB; ②, the offset between the frequency reference point and the frequency domain center position of the SSB; ③, the offset between the frequency reference point and the subcarrier 0 of the first RB of the SSB, etc.; ④, the offset between the frequency reference point and the subcarrier 0 of the common RB that overlaps with the subcarrier 0 of RB0 corresponding to the SSB, etc.

[0083] Exemplarily, the frequency domain resources of the first cell are composed of three frequency domain units (frequency domain unit C1 to frequency domain unit C3), and the SSB is located in frequency domain unit C3. If the second indication information indicates that the offset value between common Point A and the frequency domain starting position of the SSB is offset#0, then the common Point A corresponding to frequency domain units C1 to C3 is determined according to the second indication information as shown in 5a of Figure 5. If the second indication information indicates that the offset values ​​between Point A1, Point A2 and Point A3 (i.e., three independent frequency reference points) and the frequency domain starting position of the SSB are offset#1, offset#2 and offset#3, then the independent frequency reference points corresponding to frequency domain units C1 to C3 are determined according to the second indication information as shown in 5b of Figure 5.

[0084] After determining the frequency reference point corresponding to each frequency domain unit, the frequency domain starting position information of each frequency domain unit can be determined according to the first offset value information between each frequency domain unit and the corresponding frequency reference point indicated by the third indication information; further, combined with the bandwidth of each frequency domain unit, the frequency domain resources of each frequency domain unit can be obtained.

[0085] It should be noted that the offset value information mentioned in this application (including the first offset value information and the second offset value information, as well as the third offset value information and the fourth offset value information mentioned later) can be used to indicate the offset value and the offset direction, or can be used only to indicate the offset value. Among them, the offset direction includes the direction of the higher frequency domain position and the direction of the lower frequency domain position. Exemplarily, the frequency domain unit C1 to the frequency domain unit C3 correspond to a common Point A, and the third indication information indicates that the first offset value of the frequency domain unit C1 is +q RBs (i.e., q RBs are offset toward the higher frequency domain position direction of the common Point A), the first offset value of the frequency domain unit C2 is 0 RBs, and the first offset value of the frequency domain unit C3 is -p RBs (i.e., p RBs are offset toward the lower frequency domain position direction of the common Point A). The starting positions of the frequency domain units C1 to C3 are shown in FIG6 .

[0086] It should also be noted that the present application does not specifically limit the number of second indication information and the number of third indication information included in the first configuration information. In one possible scenario, the m frequency domain units may correspond to a common frequency reference point, then the first configuration information may indicate the common frequency reference point through a second indication information, and indicate the first offset value between the m frequency domain units and the common frequency reference point through m third indication information. In another possible scenario, the m frequency domain units may correspond to m frequency reference points, then the first configuration information may indicate the m frequency reference points through m second indication information, and indicate the first offset value between each frequency domain unit and the frequency reference point corresponding to the frequency domain unit through m third indication information.

[0087] It should also be noted that the second indication information and the third indication information may be different indication information or the same indication information (referred to as fourth indication information for ease of understanding). For example, the first configuration information includes m fourth indication information, the fourth indication information corresponding to each frequency domain unit one-to-one, and the fourth indication information indicating the starting position and first offset value information of the frequency reference point of the frequency domain unit corresponding to the fourth indication information.

[0088] Case 2: The SIB1 includes second configuration information, where the second configuration information is used to indicate a starting position and bandwidth of the first frequency domain unit.

[0089] That is, the terminal can obtain the starting position and bandwidth of the first frequency domain unit in which the SSB is located through SIB1. In this case, the terminal receives fifth indication information from the network device, where the fifth indication information is used to indicate the starting position and bandwidth of each frequency domain unit in the m-1 frequency domain units, where the m-1 frequency domain units are other frequency domain units in the m frequency domain units except the first frequency domain unit.

[0090] It should be noted that the SIB1 includes information about the first frequency reference point (i.e., the frequency reference point corresponding to the first frequency domain unit). In one possible implementation, the fifth indication information is used to indicate the third offset value information of each frequency domain unit in the m-1 frequency domain units, and the third offset value information indicates the offset between the starting position of each frequency domain unit and the first frequency reference point. In another possible implementation, the fifth indication information is used to indicate the m-1 frequency reference points corresponding to the m-1 frequency domain units and the fourth offset value information corresponding to each frequency domain unit, and the fourth offset value information is used to indicate the offset between the starting position of the frequency domain unit and the frequency reference point corresponding to the frequency domain unit.

[0091] Among them, the manner in which the fifth indication information indicates m-1 frequency reference points corresponding to m-1 frequency domain units can be referred to the aforementioned description of the manner in which the second indication information indicates m frequency reference points corresponding to m frequency domain units; the manner in which the fifth indication information indicates the fourth offset value information corresponding to each frequency domain unit can be referred to the aforementioned description of the manner in which the third indication information indicates the first offset value information corresponding to each frequency domain unit, and will not be repeated here.

[0092] In one possible implementation, after the terminal accesses the first cell according to the second configuration information, the terminal sends capability information to the network device indicating that the terminal has the first capability. The first capability can be understood as the capability of supporting access to the first cell, or the capability of supporting access to a cell including multiple non-adjacent frequency domain units. Furthermore, the network device sends the fifth indication information to the terminal based on the capability information. The fifth indication information can be carried in an RRC message.

[0093] In one possible implementation, the SIB1 broadcast by the network device includes the second configuration information. After a terminal capable of supporting access to the first cell accesses the first cell, the network device updates the configuration information in the SIB1, where the updated SIB1 includes the first configuration information. The terminal accessing the first cell can obtain the starting position and bandwidth of each of the m frequency domain units by obtaining the updated SIB1.

[0094] Case 3: The SIB1 includes first configuration information and second configuration information, the first configuration information is used to indicate the starting position and bandwidth of each frequency domain unit in the m frequency domain units, and the second configuration information is used to indicate the starting position and bandwidth of the first frequency domain unit.

[0095] The first configuration information corresponds to first identification information, and / or the second configuration information corresponds to second identification information. The first identification information is used to indicate a first type of terminal device that does not have the first capability, and the second identification information is used to indicate a second type of terminal device that has the first capability. Optionally, the first identification information and the second identification information are version (release) identifications, and terminals of different releases can receive different configuration information based on the first identification information and the second identification information.

[0096] In summary, compared to methods where a terminal must access multiple cells to use multiple spectrum segments, the method described in Figure 4 consists of multiple non-adjacent frequency domain units within a cell. This allows a terminal to access multiple spectrum segments simply by accessing a single cell. This method eliminates the need for the terminal to synchronize, configure, or perform measurements across multiple cells, reducing operational complexity. Furthermore, network equipment can enable terminals to use multiple spectrum segments by managing a single cell, further reducing the complexity of network equipment operation and maintenance.

[0097] It is understandable that in order to implement the functions in the above embodiments, the terminal includes hardware structures and / or software modules corresponding to the execution of each function. It should be readily apparent to 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 hardware or by computer software transceiver components driving hardware depends on the specific application scenario and design constraints of the technical solution.

[0098] Figures 7 and 8 are schematic diagrams of the structures 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 in the above-mentioned method embodiments, and thus can also achieve the beneficial effects possessed by the above-mentioned method embodiments. In the embodiments of the present application, the communication device can be the terminal 120 as shown in Figure 1, or a module (such as a chip) applied to the terminal, or the communication device can be the network device 110 as shown in Figure 1, or a module (such as a chip) applied to the network device.

[0099] As shown in Figure 7 , a communication device 700 includes a processing unit 710 and a transceiver unit 720. The communication device 700 is used to implement the functions of the terminal in the method embodiment shown in Figure 4 above.

[0100] When the communication device 700 is used to implement the functions of the terminal in the method embodiment shown in Figure 4: the transceiver unit 720 is used to receive the synchronization signal block SSB, which is located in the first frequency domain unit of the first cell, the frequency domain resources of the first cell are composed of m frequency domain units, m is an integer greater than 1, and the m frequency domain units are not adjacent in the frequency domain, and the SSB indicates the resources carrying control information, and the control information is used to schedule SIB1; further, the transceiver unit 720 is also used to receive SIB1.

[0101] In a possible implementation manner, the m frequency domain units correspond to the same downlink carrier, or the m frequency domain units correspond to m downlink carriers.

[0102] In a possible implementation, the SSB includes first indication information, where the first indication information is used to indicate the absolute frequency point number of the starting frequency domain position of the control resource set CORESET 0 and the bandwidth of the CORESET 0; wherein the CORESET 0 is the CORESET used to schedule the SIB1.

[0103] In a possible implementation manner, SIB1 includes first configuration information, where the first configuration information is used to indicate a starting position and a bandwidth of each frequency domain unit in the m frequency domain units.

[0104] In one possible implementation, the first configuration information includes second indication information and third indication information, the second indication information is used to indicate one or m frequency reference points corresponding to the m frequency domain units, and the third indication information is used to indicate the first offset value information corresponding to each frequency domain unit in the m frequency domain units, and the first offset value information indicates the offset between the starting position of the frequency domain unit and the frequency reference point corresponding to the frequency domain unit.

[0105] In one possible implementation, the second indication information indicates the absolute frequency point number of each frequency reference point among the one or m frequency reference points, or the second indication information indicates the second offset value information corresponding to each frequency reference point among the one or m frequency reference points, and the second offset value information indicates the offset between the frequency reference point and the SSB.

[0106] In a possible implementation, the first offset value information indicates an offset value and an offset direction, and / or the second offset value information indicates an offset value and an offset direction.

[0107] For a more detailed description of the transceiver unit 720 and the processing unit 710 , reference may be made to the relevant description of the terminal in the method embodiment shown in FIG. 4 .

[0108] As shown in Figure 7, a communication device 700 includes a processing unit 710 and a transceiver unit 720. The communication device 700 is used to implement the functions of the network device in the method embodiment shown in Figure 4 above.

[0109] When the communication device 700 is used to implement the functions of the network device in the method embodiment shown in Figure 4: the transceiver unit 720 is used to send a synchronization signal block SSB, which is located in the first frequency domain unit of the first cell, the frequency domain resources of the first cell are composed of m frequency domain units, m is an integer greater than 1, and the m frequency domain units are not adjacent in the frequency domain, and the SSB indicates the resources carrying control information, and the control information is used to schedule SIB1; the transceiver unit 720 is also used to send SIB1.

[0110] In a possible implementation manner, the m frequency domain units correspond to the same downlink carrier, or the m frequency domain units correspond to m downlink carriers.

[0111] In a possible implementation, the SSB includes first indication information, where the first indication information is used to indicate the absolute frequency point number of the starting frequency domain position of the control resource set CORESET 0 and the bandwidth of the CORESET 0; wherein the CORESET 0 is the CORESET used to schedule the SIB1.

[0112] In a possible implementation manner, SIB1 includes first configuration information, where the first configuration information is used to indicate a starting position and a bandwidth of each frequency domain unit in the m frequency domain units.

[0113] In one possible implementation, the first configuration information includes second indication information and third indication information, the second indication information is used to indicate one or m frequency reference points corresponding to the m frequency domain units, and the third indication information is used to indicate the first offset value information corresponding to each frequency domain unit in the m frequency domain units, and the first offset value information indicates the offset between the starting position of the frequency domain unit and the frequency reference point corresponding to the frequency domain unit.

[0114] In one possible implementation, the second indication information indicates the absolute frequency point number of each frequency reference point among the one or m frequency reference points, or the second indication information indicates the second offset value information corresponding to each frequency reference point among the one or m frequency reference points, and the second offset value information indicates the offset between the frequency reference point and the SSB.

[0115] In a possible implementation, the first offset value information indicates an offset value and an offset direction, and / or the second offset value information indicates an offset value and an offset direction.

[0116] For a more detailed description of the transceiver unit 720 and the processing unit 710 , reference may be made to the relevant description of the network device in the method embodiment shown in FIG. 4 .

[0117] As shown in Figure 8, communication device 800 includes a processor 810 and an interface circuit 820. Processor 810 and interface circuit 820 are coupled to each other. It will be appreciated that interface circuit 820 may be a transceiver or an input / output interface. Optionally, communication device 800 may further include a memory 830 for storing instructions executed by processor 810, input data required by processor 810 to execute instructions, or data generated after processor 810 executes instructions.

[0118] When the communication device 800 is used to implement the method shown in FIG. 4 , the processor 810 is used to implement the functions of the processing unit 710 , and the interface circuit 820 is used to implement the functions of the transceiver unit 720 .

[0119] 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. When the terminal chip receives information from the base station, it can be understood that the information is first received by other modules in the terminal (such as a radio frequency module or antenna) and then sent to the terminal chip by these modules. When the terminal chip sends information to the base station, it can be understood that the information is first sent to other modules in the terminal (such as a radio frequency module or antenna) and then sent to the base station by these modules.

[0120] When the communication device is a chip used in a network device, the network device chip implements the functions of the network device in the above method embodiments. When the network device chip receives information from a terminal, it can be understood that the information is first received by other modules in the network device (such as a radio frequency module or antenna) and then sent to the network device chip by these modules. When the network device chip sends information to a terminal, it can be understood that the information is sent to other modules in the network device (such as a radio frequency module or antenna) and then sent to the terminal by these modules.

[0121] In this application, when entity A sends information to entity B, it can be done directly from A to B or indirectly through another entity. Similarly, when entity B receives information from entity A, it can be done directly from entity B or indirectly through another entity. Entities A and B herein can be RAN nodes or terminals, or modules within a RAN node or terminal. The sending and receiving of information can be information exchange between a RAN node and a terminal, for example, between a base station and a terminal; the sending and receiving of information can also be information exchange between two RAN nodes, for example, between a CU and a DU; the sending and receiving of information can also be information exchange between different modules within a device, for example, between a terminal chip and other modules in the terminal, or between a base station chip and other modules within the base station.

[0122] It is understood that the processor in the embodiments of the present application may be a central processing unit (CPU), or may be 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.

[0123] 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, registers, hard disk, mobile hard disk, CD-ROM or any other form of storage medium well 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 an integral part of the processor. The processor and 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 storage medium can also exist in a base station or a terminal as discrete components.

[0124] In the above embodiments, all or part of the embodiments may be implemented using software, hardware, firmware, or any combination thereof. When implemented using software, all or part of the embodiments may be implemented in the form of a computer program product. A computer program product includes one or more computer programs or instructions. When the computer program or instructions are loaded and executed on a computer, all or part of the processes or functions of the embodiments of the present application are performed. 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 instructions may be stored in a computer-readable storage medium or transferred from one computer-readable storage medium to another. For example, the computer program or instructions may be transferred from one website, computer, server, or data center to another website, computer, server, or data center via wired or wireless means. The computer-readable storage medium may be any available medium that can be accessed by a computer or a data storage device such as a server or data center that integrates one or more available media. The available media may be magnetic media, such as floppy disks, hard disks, or magnetic tapes; optical media, such as digital video disks; or semiconductor media, such as solid-state drives. The computer-readable storage medium may be a volatile or nonvolatile storage medium, or may include both volatile and nonvolatile types of storage media.

[0125] In the various embodiments of the present application, unless otherwise specified or there is a logical conflict, the terms and / or descriptions between different embodiments are consistent and can be referenced by each other. The technical features in different embodiments can be combined to form new embodiments according to their inherent logical relationships.

[0126] In this application, "at least one" means one or more, and "more" 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 this application, the character " / " generally indicates that the previous and next associated objects are in an "or" relationship; in the formula of this 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.

[0127] It is understood that the various numbers used in the embodiments of this application are merely for ease of description and are not intended to limit the scope of the embodiments of this application. The order of the sequence numbers of the above-mentioned processes does not necessarily imply a specific order of execution; the order of execution of the processes should be determined by their functions and inherent logic.

Claims

1. A communication method, characterized in that: The method comprises: receiving a synchronization signal block (SSB), where the SSB is located in a first frequency domain unit of a first cell, where the frequency domain resources of the first cell consist of m frequency domain units, where m is an integer greater than 1, and the m frequency domain units are non-adjacent in the frequency domain, and the SSB indicates a resource of control information, where the control information is used to schedule a system information block (SIB1); Receive the SIB1.

2. The method according to claim 1, characterized in that The m frequency domain units correspond to the same downlink carrier, or the m frequency domain units correspond to m downlink carriers.

3. The method according to claim 1 or 2, characterized in that The SSB includes first indication information, where the first indication information indicates an absolute frequency point number of a starting frequency domain position of a control resource set CORESET 0 and a bandwidth of the CORESET 0; wherein the CORESET 0 is a CORESET used to schedule the SIB1.

4. The method according to any one of claims 1 to 3, characterized in that SIB1 includes first configuration information, where the first configuration information indicates a starting position and a bandwidth of each of the m frequency domain units.

5. The method according to claim 4, characterized in that: The first configuration information includes second indication information and third indication information, the second indication information indicates one or m frequency reference points corresponding to the m frequency domain units, the third indication information indicates the first offset value information corresponding to each frequency domain unit in the m frequency domain units, and the first offset value information indicates the offset between the starting position of the frequency domain unit and the frequency reference point corresponding to the frequency domain unit.

6. The method according to claim 5, characterized in that The second indication information indicates the absolute frequency point number of each frequency reference point in the one or m frequency reference points, or the second indication information indicates the second offset value information corresponding to each frequency reference point in the one or m frequency reference points, and the second offset value information indicates the offset between the frequency reference point and the SSB.

7. A communication method, characterized in that: The method comprises: Sending a synchronization signal block (SSB), where the SSB is located in a first frequency domain unit of a first cell, where the frequency domain resources of the first cell consist of m frequency domain units, where m is an integer greater than 1, and the m frequency domain units are non-adjacent in the frequency domain. The SSB indicates a resource carrying control information, where the control information is used to schedule a system information block (SIB1); The SIB1 is sent.

8. The method according to claim 7, characterized in that: The m frequency domain units correspond to the same downlink carrier, or the m frequency domain units correspond to m downlink carriers.

9. The method according to claim 7 or 8, characterized in that The SSB includes first indication information, where the first indication information is used to indicate an absolute frequency point number of a starting frequency domain position of a control resource set CORESET 0 and a bandwidth of the CORESET 0; wherein the CORESET 0 is a CORESET used to schedule the SIB1.

10. The method according to any one of claims 7 to 9, characterized in that: SIB1 includes first configuration information, where the first configuration information is used to indicate a starting position and a bandwidth of each of the m frequency domain units.

11. The method according to claim 10, characterized in that: The first configuration information includes second indication information and third indication information, the second indication information is used to indicate one or m frequency reference points corresponding to the m frequency domain units, and the third indication information is used to indicate the first offset value information corresponding to each frequency domain unit in the m frequency domain units, and the first offset value information indicates the offset between the starting position of the frequency domain unit and the frequency reference point corresponding to the frequency domain unit.

12. The method according to claim 11, characterized in that: The second indication information indicates the absolute frequency point number of each frequency reference point in the one or m frequency reference points, or the second indication information indicates the second offset value information corresponding to each frequency reference point in the one or m frequency reference points, and the second offset value information indicates the offset between the frequency reference point and the SSB.

13. A communication device, characterized in that: The method comprises a module for executing the method according to any one of claims 1 to 6, or a module for executing the method according to any one of claims 7 to 12.

14. A communication device, characterized in that: The method comprises a processor and an interface circuit, wherein the interface circuit is used to receive signals from other communication devices outside the communication device and transmit them to the processor or send signals from the processor to other communication devices outside the communication device, and the processor is used to implement the method according to any one of claims 1 to 6 through a logic circuit or by executing code instructions, or the processor is used to implement the method according to any one of claims 7 to 12 through a logic circuit or by executing code instructions.

15. A computer-readable storage medium, characterized in that The storage medium stores a computer program or instruction. When the computer program or instruction is executed by the communication device, the communication device implements the method according to any one of claims 1 to 6, or implements the method according to any one of claims 7 to 12.

16. A computer program product, characterized in that The computer program product includes a computer program or instructions. When the computer program or instructions are executed by a communication device, the communication device implements the method according to any one of claims 1 to 6, or implements the method according to any one of claims 7 to 12.

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