Communication method and apparatus

Abstract

A communication method and apparatus, relating to the field of communications. The method comprises: receiving a system message; and determining transmission resource configurations of M common signals on the basis of the system message, wherein M is an integer greater than 1. By using the method, when the M common signals are configured on a network side, a terminal can determine the transmission resource configurations of the M common signals by means of the system message, and thus can determine the type of the received common signals on the basis of the transmission resource configurations of the M common signals and detect the corresponding common signals on corresponding transmission resources on the basis of the transmission resource configurations of the M common signals.

Description

Communication method and device

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application claims priority to the Chinese patent application filed with the State Intellectual Property Office of the People's Republic of China on December 14, 2023, with application number 202311724606.5 and invention name "A Communication Method and Device", the entire contents of which are incorporated by reference into this application. Technical Field

[0003] The present application relates to the field of communication technology, and in particular to a communication method and device. Background Art

[0004] Compared to 4G networks, 5G networks offer dramatically increased transmission bandwidth. Simultaneously, the higher peak-to-average power ratio (PAPR) further reduces power amplifier (PA) efficiency, leading to a sharp increase in the transmit power consumption of 5G base stations. Simultaneously, the rapid increase in base station transmission channels has also led to a sharp increase in the system's static power consumption. Furthermore, due to the increased frequency bands deployed in 5G networks and the reduced coverage area, the increasingly dense base station deployment has further increased the overall power consumption of the entire network.

[0005] At present, the power consumption of a single 5G base station is generally 2 to 3 times that of a typical 4G base station. In the 4G era, the typical power consumption of a single remote radio unit (RRU) was 660W. In the 5G era, the typical power consumption of a single active antenna unit (AAU) increased to 1400W. On the one hand, high energy consumption is not conducive to environmental protection and sustainable social development, and on the other hand, it causes huge electricity bills. In fact, one of the main reasons for the high power consumption of 5G networks is that they need to periodically send various public signals. Typical public signals include synchronization signal block (synchronization signal / PBCH block, SSB) and system information block 1 (system information block 1, SIB1). On the one hand, the overhead of sending these common signals is large, which will cause more dynamic power consumption to increase; on the other hand, since these common signals need to be sent frequently (for example, the typical SSB / SIB1 sending period is 20ms, that is, the base station needs to send SSB / SIB1 every 20ms), it is difficult for the base station to enter a deeper sleep state (the startup of hardware / software requires a certain delay), resulting in a large static power consumption overhead on the base station side.

[0006] To this end, researchers have proposed dynamically adjusting the SSB transmission mode by configuring two sets of SSB configurations. Furthermore, how to enable the terminal to determine different SSB configurations in dual-SSB (or multi-SSB) configuration scenarios is a question worth noting. Summary of the Invention

[0007] The embodiments of the present application provide a communication method and apparatus for enabling a terminal to determine the configuration of different SSBs.

[0008] In a first aspect, the present application provides a communication method that can be executed by a terminal or a module (such as a chip) in the terminal. The method includes: receiving a system message; and determining, based on the system message, transmission resource configurations for M types of common signals, where M is an integer greater than 1.

[0009] Using the above method, when M types of public signals are configured on the network side, the terminal can determine the transmission resource configuration of the M types of public signals through system messages, and then can determine which type of public signal the received public signal is based on the transmission resource configuration of the M types of public signals, and detect the corresponding public signal on the corresponding transmission resource based on the transmission resource configuration of the M types of public signals.

[0010] In one possible design, the system message includes the periods of M-1 common signals other than the first common signal among the M common signals and / or the first offsets corresponding to the M-1 common signals respectively, and the period and / or the first offset of the first common signal are predefined or carried by the system message; wherein the first offset of the i-th common signal indicates the system frame in which the transmission resources of the i-th common signal are located within the period of the i-th common signal; the i-th common signal is any one of the M common signals.

[0011] With the above design, the terminal can determine the period of M types of common signals and the first offset of M types of common signals based on system messages, or system messages and predefined related content, and then distinguish different common signals through different system frames, and detect the corresponding common signals on the corresponding transmission resources according to the transmission resource configuration of the M types of common signals.

[0012] In one possible design, M=2; the M common signals include a first common signal and a second common signal; the system message includes the period of the first common signal, the period of the second common signal and / or the half frame corresponding to the transmission resource of the second common signal are predefined, or carried by the system message, and the half frame corresponding to the transmission resource of the first common signal is different from the half frame corresponding to the transmission resource of the second common signal.

[0013] With the above design, the terminal can determine the half-frames in which the transmission resources of the first public signal and the transmission resources of the second public signal are respectively located based on the system message, or the system message and predefined related content, and then distinguish different public signals through different half-frames, and detect the corresponding public signal on the corresponding transmission resource according to the transmission resource configuration of the two public signals.

[0014] In one possible design, M=2; the M common signals include a first common signal and a second common signal; the system message includes a first period; the first bias and / or the period of the first common signal are predefined, or carried by the system message; wherein the first period and the first bias are used to determine a first transmission resource; the transmission resource of the first common signal is determined based on the period of the first common signal and the first bias; the transmission resources in the first transmission resource other than the transmission resources of the first common signal are the transmission resources of the second common signal.

[0015] With the above design, the terminal can determine the distribution of the two common signals in the first period based on the system message, or the system message and predefined related content, and then distinguish different common signals through different system frames, and detect the corresponding common signal on the corresponding transmission resource according to the transmission resource configuration of the two common signals.

[0016] In one possible design, the system message includes the periods of M-1 common signals among the M common signals except the first common signal, and the correspondence between the periods of the M-1 common signals and the transmission patterns of the M-1 common signals; the period of the first common signal and / or the transmission pattern of the first common signal are predefined or carried by the system message.

[0017] Using the above design formula, the terminal can determine the correspondence between the periods of M types of public signals and the transmission patterns of M types of public signals based on system messages, or system messages and predefined related content, and then distinguish different public signals through different transmission patterns, and detect the corresponding public signals on the corresponding transmission resources according to the transmission resource configuration of the M types of public signals.

[0018] In one possible design, a third common signal is received, where the third common signal is one of the M common signals; wherein the third common signal carries first indication information, and the first indication information indicates a transmission pattern of the third common signal.

[0019] In one possible design, the system message includes the periods of M-1 common signals among the M common signals except the first common signal, and the correspondence between the periods of the M-1 common signals and the second offsets of the M-1 common signals; the period of the first common signal and / or the second offset of the first common signal are predefined, or carried by the system message; wherein the second offset of the i-th common signal indicates the offset of the transmission resources of the i-th common signal relative to the transmission resources of the second common signal, the transmission resources of the second common signal are determined based on a predefined transmission pattern, and the i-th common signal is any one of the M common signals.

[0020] With the above design, the terminal can determine the correspondence between the periods of M types of common signals and the second offsets of M types of common signals based on system messages, or system messages and predefined related content, and then distinguish different common signals by different second offsets, and detect the corresponding common signals on the corresponding transmission resources according to the transmission resource configuration of the M types of common signals.

[0021] In one possible design, a third common signal is received, where the third common signal is one of the M common signals; the third common signal carries second indication information, and the second indication information indicates a second offset of the third common signal.

[0022] In a second aspect, the present application provides a communication method that can be performed by a base station or a module (such as a chip) in the base station. The method includes: sending N common signals out of M common signals; M is an integer greater than 1, and N is a positive integer less than or equal to M; sending a system message; the system message is used to determine the transmission resource configuration of the M common signals.

[0023] By adopting the above method, when M types of common signals are configured on the network side, the terminal can determine the transmission resource configuration of the M types of common signals through system messages.

[0024] In one possible design, the system message includes the periods of M-1 common signals other than the first common signal among the M common signals and / or the first offsets corresponding to the M-1 common signals respectively, and the period and / or the first offset of the first common signal are predefined or carried by the system message; wherein the first offset of the i-th common signal indicates the system frame in which the transmission resources of the i-th common signal are located within the period of the i-th common signal; the i-th common signal is any one of the M common signals.

[0025] In one possible design, M=2; the M common signals include a first common signal and a second common signal; the system message includes the period of the first common signal, the period of the second common signal and / or the half frame corresponding to the transmission resource of the second common signal are predefined, or carried by the system message, and the half frame corresponding to the transmission resource of the first common signal is different from the half frame corresponding to the transmission resource of the second common signal.

[0026] In one possible design, M=2; the M common signals include a first common signal and a second common signal; the system message includes a first period; the first bias and / or the period of the first common signal are predefined, or carried by the system message; wherein the first period and the first bias are used to determine a first transmission resource; the transmission resource of the first common signal is determined based on the period of the first common signal and the first bias; the transmission resources in the first transmission resource other than the transmission resources of the first common signal are the transmission resources of the second common signal.

[0027] In one possible design, the system message includes the periods of M-1 common signals among the M common signals except the first common signal, and the correspondence between the periods of the M-1 common signals and the transmission patterns of the M-1 common signals; the period of the first common signal and / or the transmission pattern of the first common signal are predefined or carried by the system message.

[0028] In one possible design, a third common signal is sent, where the third common signal is one of the M common signals; wherein the third common signal carries first indication information, and the first indication information indicates a transmission pattern of the third common signal.

[0029] In one possible design, the system message includes the periods of M-1 common signals among the M common signals except the first common signal, and the correspondence between the periods of the M-1 common signals and the second offsets of the M-1 common signals; the period of the first common signal and / or the second offset of the first common signal are predefined, or carried by the system message; wherein the second offset of the i-th common signal indicates the offset of the transmission resources of the i-th common signal relative to the transmission resources of the second common signal, the transmission resources of the second common signal are determined based on a predefined transmission pattern, and the i-th common signal is any one of the M common signals.

[0030] In one possible design, a third common signal is sent, where the third common signal is one of the M common signals; the third common signal carries second indication information, and the second indication information indicates a second offset of the third common signal.

[0031] In a third aspect, the present application provides a communication device, which includes a transceiver unit and a processing unit. The transceiver unit is used to send and receive information, and the processing unit receives a system message through the transceiver unit; the transmission resource configuration of M types of common signals is determined based on the system message, where M is an integer greater than 1.

[0032] In one possible design, the system message includes the periods of M-1 common signals other than the first common signal among the M common signals and / or the first offsets corresponding to the M-1 common signals respectively, and the period and / or the first offset of the first common signal are predefined or carried by the system message; wherein the first offset of the i-th common signal indicates the system frame in which the transmission resources of the i-th common signal are located within the period of the i-th common signal; the i-th common signal is any one of the M common signals.

[0033] In one possible design, the system message includes the period of the first common signal, the period of the second common signal and / or the half frame corresponding to the transmission resource of the second common signal is predefined, or carried by the system message, and the half frame corresponding to the transmission resource of the first common signal is different from the half frame corresponding to the transmission resource of the second common signal.

[0034] In one possible design, M=2; the M common signals include a first common signal and a second common signal; the system message includes a first period; the first bias and / or the period of the first common signal are predefined, or carried by the system message; wherein the first period and the first bias are used to determine a first transmission resource; the transmission resource of the first common signal is determined based on the period of the first common signal and the first bias; the transmission resources in the first transmission resource other than the transmission resources of the first common signal are the transmission resources of the second common signal.

[0035] In one possible design, the system message includes the periods of M-1 common signals among the M common signals except the first common signal, and the correspondence between the periods of the M-1 common signals and the transmission patterns of the M-1 common signals; the period of the first common signal and / or the transmission pattern of the first common signal are predefined or carried by the system message.

[0036] In one possible design, a third common signal is received, where the third common signal is one of the M common signals; wherein the third common signal carries first indication information, and the first indication information indicates a transmission pattern of the third common signal.

[0037] In one possible design, the system message includes the periods of M-1 common signals among the M common signals except the first common signal, and the correspondence between the periods of the M-1 common signals and the second offsets of the M-1 common signals; the period of the first common signal and / or the second offset of the first common signal are predefined, or carried by the system message; wherein the second offset of the i-th common signal indicates the offset of the transmission resources of the i-th common signal relative to the transmission resources of the second common signal, the transmission resources of the second common signal are determined based on a predefined transmission pattern, and the i-th common signal is any one of the M common signals.

[0038] In one possible design, a third common signal is received, where the third common signal is one of the M common signals; the third common signal carries second indication information, and the second indication information indicates a second offset of the third common signal.

[0039] In a fourth aspect, the present application provides a communication method, which includes a transceiver unit and a processing unit, wherein the transceiver unit is used to send and receive information, and the processing unit sends N common signals out of M common signals through the transceiver unit; M is an integer greater than 1, and N is a positive integer less than or equal to M; and sends a system message; the system message is used to determine the transmission resource configuration of the M common signals.

[0040] In one possible design, the system message includes the periods of M-1 common signals other than the first common signal among the M common signals and / or the first offsets corresponding to the M-1 common signals respectively, and the period and / or the first offset of the first common signal are predefined or carried by the system message; wherein the first offset of the i-th common signal indicates the system frame in which the transmission resources of the i-th common signal are located within the period of the i-th common signal; the i-th common signal is any one of the M common signals.

[0041] In one possible design, M=2; the M common signals include a first common signal and a second common signal; the system message includes the period of the first common signal, the period of the second common signal and / or the half frame corresponding to the transmission resource of the second common signal are predefined, or carried by the system message, and the half frame corresponding to the transmission resource of the first common signal is different from the half frame corresponding to the transmission resource of the second common signal.

[0042] In one possible design, M=2; the M common signals include a first common signal and a second common signal; the system message includes a first period; the first bias and / or the period of the first common signal are predefined, or carried by the system message; wherein the first period and the first bias are used to determine a first transmission resource; the transmission resource of the first common signal is determined based on the period of the first common signal and the first bias; the transmission resources in the first transmission resource other than the transmission resources of the first common signal are the transmission resources of the second common signal.

[0043] In one possible design, the system message includes the periods of M-1 common signals among the M common signals except the first common signal, and the correspondence between the periods of the M-1 common signals and the transmission patterns of the M-1 common signals; the period of the first common signal and / or the transmission pattern of the first common signal are predefined or carried by the system message.

[0044] In one possible design, a third common signal is sent, where the third common signal is one of the M common signals; wherein the third common signal carries first indication information, and the first indication information indicates a transmission pattern of the third common signal.

[0045] In one possible design, the system message includes the periods of M-1 common signals among the M common signals except the first common signal, and the correspondence between the periods of the M-1 common signals and the second offsets of the M-1 common signals; the period of the first common signal and / or the second offset of the first common signal are predefined, or carried by the system message; wherein the second offset of the i-th common signal indicates the offset of the transmission resources of the i-th common signal relative to the transmission resources of the second common signal, the transmission resources of the second common signal are determined based on a predefined transmission pattern, and the i-th common signal is any one of the M common signals.

[0046] In one possible design, a third common signal is sent, where the third common signal is one of the M common signals; the third common signal carries second indication information, and the second indication information indicates a second offset of the third common signal.

[0047] In a fifth aspect, the present application provides a communication device, which may be a first device, or a module or unit (for example, a chip, or a chip system, or a circuit) in the first device that corresponds one-to-one to the method / operation / step / action described in any one of the first to second aspects, or may be capable of being used in combination with the first device.

[0048] In a sixth aspect, the present application provides a communication device comprising at least one processing element and at least one storage element, wherein the at least one storage element is used to store programs and data, and the at least one processing element is used to read and execute the programs and data stored in the storage element, so that any method described in any one of the above aspects of the present application is implemented.

[0049] In a seventh aspect, the present application further provides a computer program, which, when executed on a computer, enables the computer to execute any of the methods described in any of the above aspects.

[0050] In an eighth aspect, the present application provides a communication device comprising: an interface circuit and at least one processor; the interface circuit is used to provide input and / or output of programs or instructions to the at least one processor; the at least one processor is used to execute the programs or instructions so that the communication device can implement any of the methods described in any of the above aspects.

[0051] In one possible manner, the communication device includes the at least one memory, and the at least one memory is used to store the program or instruction.

[0052] In a ninth aspect, the present application provides a computer storage medium storing a software program. When the software program is read and executed by one or more processors, the software program can implement any of the methods described in any of the above aspects.

[0053] In a tenth aspect, the present application provides a computer program product comprising instructions, which, when executed on a computer, enables the computer to execute any of the methods described in any of the above aspects.

[0054] In the eleventh aspect, the present application provides a chip system, which includes at least one chip and a memory, and the at least one chip is used to read and execute the program stored in the memory to implement any of the methods described in any of the above aspects.

[0055] In the twelfth aspect, the present application provides a communication system, which includes at least one terminal and a base station, the terminal is used to execute any method described in the first aspect, and the base station is used to execute any method described in the second aspect.

[0056] Based on the implementations provided in the above aspects, this application can also be further combined to provide more implementations. BRIEF DESCRIPTION OF THE DRAWINGS

[0057] FIG1 shows a schematic diagram of the architecture of a communication system;

[0058] FIG2 shows a schematic diagram of a time-frequency resource structure of SSB;

[0059] Figure 3 shows a schematic diagram of two sets of SSB;

[0060] FIG4 shows a possible flow diagram of a communication method;

[0061] FIG5 shows one of the schematic diagrams of a first SSB and a second SSB;

[0062] FIG6 shows a second schematic diagram of a first SSB and a second SSB;

[0063] FIG7 shows a third schematic diagram of a first SSB and a second SSB;

[0064] FIG8 shows a fourth schematic diagram of a first SSB and a second SSB;

[0065] FIG9 shows a fifth schematic diagram of a first SSB and a second SSB;

[0066] FIG10 shows a schematic structural diagram of a communication device;

[0067] FIG11 shows a schematic structural diagram of another communication device. DETAILED DESCRIPTION

[0068] The specific implementation of the present application is described below with reference to the accompanying drawings in the embodiments of the present application. However, the implementation of the present application may also include combining these embodiments without departing from the spirit or scope of the present application, such as adopting other embodiments and making structural changes. Therefore, the detailed description of the following embodiments should not be understood in a restrictive sense. The terms used in the examples section of the present application are only used to explain the specific embodiments of the present application and are not intended to limit the present application.

[0069] The embodiments of the present application can be applied to various communication systems, such as: global system for mobile communications (GSM) system, code division multiple access (CDMA) system, wideband code division multiple access (WCDMA) system, general packet radio service (GPRS), long term evolution (LTE) system, LTE frequency division duplex (FDD) system, LTE time division duplex (TDD), universal mobile telecommunication system (UMTS), world-wide interoperability for microwave access (WIMAX) communication system, 5G system or new radio (NR), or applied to future communication systems or other similar communication systems.

[0070] Figure 1 is a schematic diagram of the architecture of a communication system 1000 used in an embodiment of the present application. As shown in Figure 1 , the communication system includes a radio access network 100 and a core network 200. Optionally, the communication system 1000 may also include the Internet 300. The radio access network 100 may include at least one radio access network device (such as 110a and 110b in Figure 1 ) and at least one terminal (such as 120a-120j in Figure 1 ). The terminal is wirelessly connected to the radio access network device, and the radio access network device is wirelessly or wiredly connected to the core network. The core network device and the radio access network device may be independent, distinct physical devices, or the core network device's functions and the radio access network device's logical functions may be integrated into the same physical device, or a single physical device may integrate some of the core network device's functions and some of the radio access network device's functions. Terminals and radio access network devices may be interconnected via wired or wireless connections. Figure 1 is merely a schematic diagram. The communication system may also include other network devices, such as wireless relay devices and wireless backhaul devices, which are not shown in Figure 1 .

[0071] Radio access network equipment, referred to as network equipment, 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 base station in a 6th-generation (6G) mobile communication system, a base station in a future mobile communication system, or an access node in a WiFi system. It can also be a module or unit that performs some of the functions of a base station, such as a centralized unit (CU) or a distributed unit (DU). The CU performs the functions of the base station's radio resource control protocol and packet data convergence protocol (PDCP), as well as the service data adaptation protocol (SDAP). The DU performs the functions of the base station's radio link control layer and medium access control (MAC) layer, as well as some or all of the physical layer. For detailed descriptions of each of these protocol layers, please refer to the relevant technical specifications of the 3rd Generation Partnership Project (3GPP). The wireless access network device can be a macro base station (such as 110a in Figure 1), a micro base station or an indoor station (such as 110b in Figure 1), a relay node, a donor node, etc. The embodiments of this application do not limit the specific technology and device form used by the wireless access network device. For ease of description, the following description uses a base station as an example of a wireless access network device.

[0072] Terminal devices may also be referred to as terminals, user equipment (UE), mobile stations, mobile terminals, 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 grids, smart furniture, smart offices, smart wearables, smart transportation, smart cities, etc. Terminals can be mobile phones, tablet computers, computers with wireless transceiver functions, wearable devices, vehicles, drones, helicopters, airplanes, ships, robots, robotic arms, smart home devices, etc. The embodiments of this application do not limit the specific technologies and specific device forms used by terminal devices. For ease of description, the following description uses a terminal as an example of a terminal device.

[0073] 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.

[0074] 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, drone 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.

[0075] 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.

[0076] 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.

[0077] It can be understood that in the embodiments of the present application, the physical downlink shared channel (PDSCH), physical downlink control channel (PDCCH), physical uplink control channel (PUCCH) and physical uplink shared channel (PUSCH) are only used as examples of downlink data channels, downlink control channels, 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.

[0078] Below, some terms used in the embodiments of the present application are explained to facilitate understanding by those skilled in the art.

[0079] 1. Subcarrier (SC): In an orthogonal frequency division multiplexing (OFDM) system, frequency domain resources are divided into several sub-resources. Each sub-resource in the frequency domain is called a subcarrier. A subcarrier can also be understood as the minimum granularity of frequency domain resources.

[0080] 2. Subcarrier spacing: In an OFDM system, the spacing between the center or peak positions of two adjacent subcarriers in the frequency domain. For example, the subcarrier spacing in an LTE system is 15kHz, while the subcarrier spacing in a 5G NR system can be 15kHz, 30kHz, 60kHz, or 120kHz.

[0081] 3. SSB:

[0082] In the current communication network, the terminal mainly searches for cells based on searching the SSB. The SSB consists of two parts, namely the synchronization signal (SS) and the physical broadcast channel (PBCH). The SS includes the primary synchronization signal (PSS) and the secondary synchronization signal (SSS). Therefore, the SSB can also be considered to consist of three parts. Among them, the combination of the SS and the PBCH can be used to obtain the cell ID, downlink timing (for example, finding the reference point of the downlink transmission, such as the frame boundary), and the acquisition of necessary system messages (for example, obtaining the time-frequency resource location of the PDCCH corresponding to SIB1, etc.).

[0083] NR's SSB has two main functions:

[0084] 1) Cell synchronization and master information block (MIB) acquisition

[0085] Among them, PSS and SSS will carry the physical cell identifier (PCI). The terminal obtains PCI by detecting PSS and SSS. At the same time, the SSB PBCH will carry the SSB index. Each SSB index corresponds to a transmission position. By detecting the SSB index and detection time, downlink timing synchronization is completed.

[0086] 2) Wide beam training

[0087] An SSB pattern contains multiple SSB indices. Different SSB indices correspond to different base station transmit beams. The terminal can detect the SSB and select the best SSB index. At the same time, the terminal can also use multiple receive beams to receive the same SSB index with different receive beams to complete the terminal-side receive beam training.

[0088] Before detecting the SSB, the terminal does not know the specific time-frequency resource location of the SSB, that is, the terminal needs to blindly detect the location of the SSB. However, since the cell bandwidth in NR is very wide, if the terminal tries to detect the SSB at each frequency point, the terminal's access speed will be very slow. Therefore, the NR protocol specifically defines a synchronization raster, which has different sizes in different frequency bands, namely 1200kHz, 1.44MHz and 17.28MHz. In other words, the terminal can try to detect the SSB one by one at intervals of the synchronization raster, thereby increasing the speed at which the terminal detects the SSB. For example, in the initial access, the terminal assumes that the period for the base station to send the SSB is 20ms. That is to say, if on a synchronization raster, if the terminal waits for 20ms without detecting the SSB, the terminal may continue to detect on another synchronization raster.

[0089] The time-frequency resource structure of SSB is shown in Figure 2. SSB contains four consecutive symbols in the time domain and occupies 20 resource blocks (RBs) in the frequency domain, that is, 240 subcarriers.

[0090] Frequency domain position of SSB: The position of SSB in the frequency domain is defined by the synchronization grid, as described above.

[0091] SSB time-domain position: The time-domain position of an SSB is defined by the SSB pattern. An SSB pattern specifies the time-domain positions of a group of consecutive SSBs within a half-frame. Currently, 3GPP defines five SSB patterns for unshared spectrum. Each SSB pattern has its own applicable subcarrier detection (SCS). However, each frequency band generally has only one or two available SSB patterns.

[0092] It is understood that the SSB pattern is predefined by the protocol, and different SSB patterns have a one-to-one mapping relationship with SCS and frequency bands. The following Table 1 shows an example of the relationship between SSB patterns, SCS and frequency bands. It should be noted that the following Table 1 intercepts part of the content specified in the existing protocol.

[0093] Table 1

[0094] In Table 1 above, Case A, Case B, Case C, etc. are specific SSB patterns.

[0095] Take Case A as an example. Case A has the following characteristics:

[0096] (1) Case A only supports SCS of 15KHz.

[0097] (2) According to Case A, the starting OFDM symbol index of SSB in the half-frame is determined to be {2,8}+14·n.

[0098] When the service frequency is less than or equal to 3 GHz, n = 0, 1, meaning that SSBs are transmitted in the first two time slots of a half-frame, and the starting OFDM symbol for the SSB in each time slot is the 3rd / 9th OFDM symbol. This means there are a total of four SSB transmission resources.

[0099] When the service frequency is greater than 3 GHz, n = 0, 1, 2, 3, meaning that SSBs are transmitted in the first four time slots of a half-frame, and the starting OFDM symbol for an SSB in each time slot is the 3rd / 9th OFDM symbol. This means there are a total of eight SSB transmission resources.

[0100] When the terminal detects the SSB, it can determine the corresponding SSB pattern based on the frequency band of the SCS. Furthermore, the MIB in the SSB carries half-frame indication information and the system frame number (SFN). Correspondingly, after the terminal receives the SSB, the terminal can obtain the specific frame based on the SFN in the MIB, and the specific half-frame based on the half-frame indication information in the MIB. Since there is a one-to-one mapping relationship between a specific SSB index and a fixed time domain position in the SSB pattern, the terminal can also determine the time slot / OFDM symbol distribution in the half-frame based on the SSB index and the SSB pattern.

[0101] At the same time, after detecting the SSB, the terminal will further receive SIB1, where SIB1 contains the actual transmission period of the SSB (for example, indicated by the ssb-PeriodicityServingCell field in SIB1) and the SSB beam actually sent, or the actual transmission situation of the SSB (for example, indicated by the ssb-PositionsInBurst field in SIB1). For example, the ssb-PositionsInBurst field can be used to indicate which SSBs corresponding to the SSB index are sent, or to indicate at which SSB transmission opportunities the SSB is sent. Based on the above information and the detected SSB pattern, the terminal can know the actual transmission configuration of the SSB (including the period, the SSB beam sent in each period, etc.).

[0102] From the above, it can be seen that the terminal determines the transmission configuration of SSB mainly in two steps: first, at the time of initial access, based on the predefined mapping relationship between SCS, frequency band and SSB pattern (for example, Table 1), determine the SSB pattern (for example, Case A); second, after receiving SIB1, determine the actual transmitted SSB pattern according to the SSB period configuration and the actual transmission beam configuration.

[0103] In existing networks, SSB transmissions are typically very frequent (e.g., a typical period is 20ms). Furthermore, the SSB beams transmitted in each period are identical (with only one SSB configuration and a corresponding ssb-PositionsInBurst parameter). Therefore, researchers propose dynamically adjusting the SSB transmission mode by configuring two sets of SSB configurations.

[0104] For example, as shown in Figure 3, the base station is configured with a set of basic SSBs or long-period SSBs to ensure basic network access and measurement performance. The period of this SSB is usually longer (for example, 160ms) and the transmission SSB beam is more complete. In addition, the base station is also configured with a set of short-period SSBs to serve users covered by the base station on demand. Specifically: the transmission period of the short-period SSB can change dynamically according to the load. For example, in medium and light load scenarios, the transmission period can be lengthened or its transmission pattern can be changed to reduce the network transmission SSB overhead and reduce base station power consumption. For example, the transmission pattern of the short-period SSB can change dynamically according to the distribution of the terminal. When the terminal distribution is relatively concentrated, only the SSB beam in the direction determined for the terminal distribution can be transmitted to reduce the network transmission SSB overhead and reduce power consumption.

[0105] However, if two sets of SSB configurations are introduced, the terminal may not be able to determine on which transmission resources the two sets of SSBs are transmitted. In particular, when the short-period SSB transmission configuration changes (including changes in the SSB transmission beam or the SSB period), the terminal cannot know which specific corresponding transmission resources have changed, which may affect a series of SSB-related processes, including SSB-related measurements, transmissions mapped to SSBs, etc. Among them, SSB-related measurements may involve radio link monitoring (RLM), radio resource management (RRM), bidirectional forwarding detection (BFD), beam failure recovery (BFR), synchronization, automatic gain control (AGC), etc., and transmissions mapped to SSBs may involve random access channels (RACH), paging, SIB1, etc.

[0106] In the present application, a public signal may refer to one of SSB, PSS, SSS, PBCH, or a combination of multiple signals, or other signals that can be used for a terminal to access a network. Among them, the period of the public signal may also be referred to as the transmission period of the public signal, or the sending period of the public signal, etc., which is not limited in this application. The system message may refer to SIB1, or other SIBs, SIBx (wherein x is a positive integer and not 1), system information (system information SI), etc. It will be understood that the following description is based on the example of the public signal being SSB and the system message being SIB1, which is not a limitation of this application. In the following content, the system message includes A, which may also be replaced by the system message indicating A, or the system message carries A, etc., which is not limited in this application. Among them, A may be a specific parameter or a corresponding relationship, etc., and please refer to the relevant description below for details. In addition, it will be understood that the system message may include other content in addition to the content involved below.

[0107] Based on the above network system architecture and the above-mentioned related technical introduction, several possible communication methods are provided in the embodiments of the present application. The execution entities of each communication method are introduced using base stations and terminals as examples. For example, the base station can be the access network device 110a or the access network device 110b in Figure 1 above. The terminal can be any of the terminals shown in Figure 1 above. In addition, it should be understood that the base station can also be replaced by a communication device with base station functions or a chip, unit or module inside a communication device with base station functions. The terminal can also be replaced by a communication device with terminal functions or a chip, unit or module inside a communication device with terminal functions.

[0108] FIG4 exemplarily shows a possible flow diagram of a communication method provided in an embodiment of the present application. As shown in FIG4 , the method includes:

[0109] Step 400: The base station sends a system message, and correspondingly, the terminal receives the system message.

[0110] In one possible implementation, the base station may further transmit N common signals among the M common signals. Accordingly, the terminal may detect at least one of the N common signals. The terminal may receive a corresponding system message based on the detected common signal, where M is an integer greater than 1 and N is a positive integer less than or equal to M.

[0111] For example, the base station may send a first SSB and a second SSB, the terminal may detect the first SSB, and then determine the time-frequency position of SIB1 based on the first SSB, and detect SIB1 at the time-frequency position.

[0112] Step 410: The terminal determines the transmission resource configuration of M types of common signals according to the system message, where M is an integer greater than 1.

[0113] It can be understood that the transmission resource configuration of M types of public signals can also be described as the transmission configuration of M types of public signals, or the configuration of M types of public signals, or the time domain configuration of M types of public signals, etc., and this application does not limit this.

[0114] The following describes a specific process of a terminal determining the transmission resource configuration of M types of common signals in conjunction with possible implementations of system messages.

[0115] Possible implementation 1:

[0116] The system message includes the periods of M-1 common signals other than the first common signal among the M common signals and / or the first offsets corresponding to the M-1 common signals respectively, wherein the period and / or the first offset of the first common signal can be predefined or carried through the system message.

[0117] Exemplarily, the period of the first common signal may be predefined, and the first offset of the first common signal may be carried by a system message, that is, the protocol predefines the period of the first common signal, and the system message also includes the first offset of the first common signal. Alternatively, the first offset of the first common signal may be predefined, and the period of the first common signal may be carried by a system message, that is, the protocol predefines the first offset of the first common signal, and the system message also includes the period of the first common signal. Alternatively, the period and the first offset of the first common signal may be predefined, that is, the protocol predefines the period of the first common signal and the first offset of the first common signal. Alternatively, the period and the first offset of the first common signal may be carried by a system message, that is, the system message also includes the period of the first common signal and the first offset of the first common signal.

[0118] It can be understood that if the protocol predefines the period of the first common signal and the first offset of the first common signal, that is, the protocol predefines the transmission resource configuration of the first common signal, then the terminal can determine the transmission resource configuration of the remaining M-1 common signals among the M common signals based on the system message.

[0119] The i-th public signal is any one of the M public signals. Taking the i-th public signal as an example, the first offset of the i-th public signal indicates the system frame in which the transmission resource of the i-th public signal is located within the period of the i-th public signal. Alternatively, the first offset of the i-th public signal indicates the time domain unit in which the transmission resource of the i-th public signal is located within the period of the i-th public signal, or the first offset of the i-th public signal indicates the time domain position in which the transmission resource of the i-th public signal is located within the period of the i-th public signal.

[0120] Exemplarily, the period of the i-th common signal is X system frames, and the first offset of the i-th common signal is Y system frames, where X is a positive integer and Y is an integer greater than or equal to 0 and less than X. That is, the i-th common signal is transmitted in the Y+1-th system frame in every X system frames, or in other words, the i-th common signal is transmitted in the system frame with the system frame number Z, where Z mod X = Y, and Z is an integer greater than or equal to 0.

[0121] It is understandable that the period and the first offset of the i-th common signal can be configured in units of system frames, or in units of milliseconds (ms), or in units of other time units, and this application does not limit this.

[0122] For example, the period of the i-th SSB is 2 system frames, and the first offset of the i-th SSB is 1 system frame, that is, the i-th SSB will be transmitted in the second system frame of every two system frames, or in other words, the i-th SSB will be transmitted in the system frame with system frame number Z, where Z mod 2 = 1.

[0123] For another example, the period of the i-th SSB is 20 ms, and the first offset of the i-th SSB is 10 ms, that is, the i-th SSB will be transmitted in the second 10 ms of every 20 ms.

[0124] In addition, in one possible implementation, after detecting a common signal, the terminal can determine the SFN of the system frame in which the common signal is located based on the common signal. Furthermore, after receiving a system message, the terminal can determine the periods of M common signals and the first offsets of the M common signals based on the system message, or the system message and predefined related content. Thus, the terminal can determine the period and first offset of the detected common signal based on the obtained SFN, the periods of the M common signals, and the first offsets of the M common signals, thereby determining the transmission resource configuration of the detected common signal and the transmission resource configurations of the other M-1 common signals. The detected common signal is one of the M common signals.

[0125] As a possible implementation, if M=2, the M common signals include a first common signal and a second common signal, and the system message may indicate the period and first offset value of the second common signal, wherein the period and first offset of the first common signal may be predefined, or may also be carried by the system message. It can be understood that in the above scenario, if the period and first offset of the first common signal are predefined, the terminal determines the period and first offset value of the second common signal according to the system message, that is, determines the transmission resource configuration of a common signal. Exemplarily, the period of the first common signal is greater than the period of the second common signal, or the period of the first common signal is less than the period of the second common signal.

[0126] For example, as shown in Figure 5, M=2, and the two common signals are the first SSB and the second SSB. Exemplarily, the first SSB is a long-period SSB, the second SSB is a short-period SSB, the period and first offset of the first SSB are predefined, and the period and first offset of the second SSB are carried by SIB1. The period of the first SSB is 8 system frames (or 80ms), and the first offset of the first SSB is 2 system frames (or 20ms). That is, the first SSB will be transmitted in the third system frame in every 8 system frames, or in other words, the first SSB will be transmitted in the system frame with the system frame number Z1, where Z1 mod 8=2. The period of the second SSB is 2 system frames, the first offset of the second SSB is 1 system frame, and the second SSB will be transmitted in the system frame with the system frame number Z2, where Z2 mod 2=1.

[0127] Furthermore, after detecting an SSB, the terminal can obtain the SFN where the SSB is located based on the MIB in the SSB. After receiving SIB1, the terminal determines the period and first offset of the second SSB according to SIB1, and then determines whether the detected SSB is the first SSB or the second SBB based on the obtained SFN, the predefined period and first offset of the first SSB, and the period and first offset of the second SSB carried by SIB1. For example, if the SFN obtained by the terminal is 21, it is determined that 21 satisfies Z2 mod 2 = 1, and the detected SSB is determined to be the second SSB. Therefore, the terminal can determine the transmission resource configuration corresponding to the detected SSB, and thus can also determine the transmission resource configuration corresponding to the undetected SSB.

[0128] By adopting the above implementation method, the terminal can obtain the period and first offset of M types of public signals, and then distinguish different public signals through different system frames, and detect the corresponding public signal on the corresponding transmission resource according to the transmission resource configuration of the M types of public signals.

[0129] Possible implementation 2:

[0130] In a scenario where M=2, the M common signals include a first common signal and a second common signal.

[0131] Example 1: The system message includes the period of the first common signal, the half frame corresponding to the transmission resource of the second common signal can be predefined, and the period of the second common signal can be predefined or carried through the system message.

[0132] For example, the protocol predefines a half frame of the second common signal, a period of the second common signal, and the system message includes the period of the first common signal.

[0133] It is understandable that if the protocol predefines the half frame of the second common signal and the period of the second common signal, that is, the protocol predefines the transmission resource configuration of the second common signal, then the terminal can determine the transmission resource configuration of the first common signal according to the system message.

[0134] For another example, the protocol predefines a half frame of the second common signal, and the system message includes the period of the first common signal and the period of the second common signal.

[0135] It can be understood that the half frame corresponding to the transmission resource of the second common signal can be predefined, and can also be replaced by the half frame corresponding to the transmission resource of the first common signal being predefined, or the half frame corresponding to the transmission resource of the first common signal and the half frame corresponding to the transmission resource of the second common signal are both predefined. In other words, if the half frame corresponding to the transmission resource of one of the two common signals is predefined, that is, the half frames corresponding to the transmission resources of the two common signals are predefined, that is, the half frame corresponding to the transmission resource of the first common signal and the half frame corresponding to the transmission resource of the second common signal are both predefined. It can also be understood that if the half frame corresponding to the transmission resource of one common signal is predefined, then the half frame corresponding to the transmission resource of the other common signal is also determined, and in this case, there is no need to notify through a system message.

[0136] Example 2: The system message includes the period of the first common signal and the half frame corresponding to the transmission resource of the first common signal. The period of the second common signal can be predefined or carried by the system message.

[0137] For example, the protocol predefines the period of the second common signal, and the system message includes the period of the first common signal and the half frame corresponding to the transmission resource of the first common signal.

[0138] For another example, the system message includes the period of the first common signal, the half frame corresponding to the transmission resource of the first common signal, and the period of the second common signal.

[0139] In which, the system message may include the half frame corresponding to the transmission resources of the first common signal, and it can also be replaced by the system message including the half frame corresponding to the transmission resources of the second common signal, or the system message may include the half frame corresponding to the transmission resources of the first common signal and the half frame corresponding to the transmission resources of the second common signal.

[0140] In the above two examples, the half-frame corresponding to the transmission resource of the first common signal is different from the half-frame corresponding to the transmission resource of the second common signal. The half-frame corresponding to the transmission resource of the first common signal can be understood as the transmission resource of the first common signal being located in the first half-frame or the second half-frame. The half-frame corresponding to the transmission resource of the second common signal can be understood as the transmission resource of the second common signal being located in the first half-frame or the second half-frame.

[0141] In addition, the first common signal may carry half-frame indication information, where the half-frame indication information is used to indicate that the transmission resource of the first common signal is located in the first half-frame or the second half-frame, and the second common signal may also carry half-frame indication information, where the half-frame indication information is used to indicate that the transmission resource of the second common signal is located in the first half-frame or the second half-frame. For example, the half-frame indication information occupies 1 bit, where the 1 bit is set to 0 to indicate the first half-frame, and where the 1 bit is set to 1 to indicate the second half-frame, or where the 1 bit is set to 0 to indicate the second half-frame and where the 1 bit is set to 1 to indicate the first half-frame. This application does not limit this.

[0142] Furthermore, in a possible implementation, after detecting a common signal, the terminal can determine the half-frame corresponding to the transmission resource of the common signal based on the half-frame indication information in the common signal. If the half-frame corresponding to the transmission resource of one (or two) common signals is predefined (refer to Example 1 above), the terminal can determine which common signal the detected common signal is based on the half-frame indication information and the half-frame corresponding to the transmission resource of the predefined one (or two) common signals. If the half-frame corresponding to the transmission resource of any common signal is not predefined, but the half-frames corresponding to the transmission resources of the two common signals are determined by system messages (refer to Example 1 above), the terminal can determine which common signal the detected common signal is based on the half-frame indication information and the half-frames corresponding to the transmission resources of the two common signals determined by the system messages. Therefore, the terminal can determine the transmission resource configuration of the detected common signal, and then can also determine the transmission resource configuration of another common signal. Among them, the common signal detected by the terminal is one of the two common signals.

[0143] For example, as shown in Figure 6, M=2, and the two common signals are the first SSB and the second SSB. Exemplarily, the first SSB is a long-period SSB, the second SSB is a short-period SSB, the period of the first SSB and the half-frame corresponding to the transmission resource of the first SSB are predefined, and the period of the second SSB is carried by SIB1, wherein the period of the first SSB is 8 system frames (or 80ms), and the half-frame corresponding to the transmission resource of the first SSB is the first half-frame. The period of the second SSB is 2 system frames (or 20ms), and the half-frame corresponding to the transmission resource of the second SSB is the second half-frame. Here, the first SSB and the second SSB may exist in the same system frame, which is only an example and is not a limitation of this application. In addition, the transmission resources of the first SSB and the transmission resources of the second SSB may also exist in different system frames, or always exist in different system frames.

[0144] In addition, the first SSB includes half-frame indication information, which indicates that the half-frame corresponding to the transmission resource of the first SSB is the first half-frame, and the half-frame indication information is carried by the MIB in the first SSB. The second SSB includes half-frame indication information, which indicates that the half-frame corresponding to the transmission resource of the second SSB is the second half-frame, and the half-frame indication information is carried by the MIB in the second SSB.

[0145] Furthermore, after detecting the SSB, the terminal can obtain the half-frame where the transmission resource of the SSB is located based on the half-frame indication information in the detected SSB. For example, the half-frame where the SSB is located is the second half-frame. Since the half-frame corresponding to the transmission resource of the predefined first SSB is the first half-frame, the terminal can determine that the detected SSB is the second SSB. Furthermore, the terminal receives SIB1, and SIB1 includes the period of the second SSB, so that the terminal device determines the transmission resource configuration of the second SSB based on the period of the second SSB and the half-frame corresponding to the transmission resource of the second SSB is the second half-frame. In addition, the terminal can also determine the transmission resource configuration of the first SSB based on the half-frame corresponding to the transmission resource of the first SSB being the first half-frame and the period of the first SSB.

[0146] By adopting the above implementation method, the terminal can obtain the half-frames in which the transmission resources of the first public signal and the transmission resources of the second public signal are respectively located, and then can distinguish different public signals through different half-frames, and detect the corresponding public signal on the corresponding transmission resource according to the transmission resource configuration of the two public signals.

[0147] Possible implementation 3:

[0148] In a scenario where M=2, the M common signals include a first common signal and a second common signal.

[0149] The system message includes the first period. The period of the first offset and / or the first common signal is predefined or carried in the system message.

[0150] Exemplarily, the period of the first common signal may be predefined, and the first offset may be carried by a system message, that is, the protocol predefines the period of the first common signal, and the system message also includes the first offset. Alternatively, the first offset may be predefined, and the period of the first common signal may be carried by a system message, that is, the protocol predefines the first offset, and the system message also includes the period of the first common signal. Alternatively, the first offset and the period of the first common signal may be predefined, that is, the protocol predefines the first offset and the period of the first common signal. Alternatively, the first offset and the period of the first common signal may be carried by a system message, that is, the system message also includes the first offset and the period of the first common signal.

[0151] It is understandable that if the protocol predefines the first offset and the period of the first common signal, that is, the protocol predefines the transmission resource configuration of the first common signal, then the terminal can determine the transmission resource configuration of the second common signal according to the system message.

[0152] The first period and the first offset are used to determine the first transmission resource.

[0153] It can be understood that the first transmission resource determined by the first period and the first offset includes the transmission resource of the first common signal and the transmission resource of the second common signal. Alternatively, it can be understood that the terminal can detect the first common signal or the second common signal based on the first transmission resource, or it can be described as that the common signal detected by the terminal based on the first transmission resource is the first common signal or the second common signal. It can also be understood that the first period is the period in which the terminal can detect the common signal, the first offset is the system frame in which the common signal that the terminal can detect is located in the first period, and the common signal that the terminal can detect is the first common signal or the second common signal.

[0154] The first offset may be configured in units of system frames, milliseconds (ms), or other time units, which is not limited in this application.

[0155] The transmission resources of the first common signal can be determined based on the period and the first offset of the first common signal. That is, the transmission resources in the first transmission resources that meet the period and the first offset of the first common signal are the transmission resources of the first common signal. The transmission resources in the first transmission resources other than the transmission resources for the first common signal are the transmission resources of the second common signal. That is, the remaining transmission resources in the first transmission resources excluding the transmission resources for the first common signal are the transmission resources of the second common signal.

[0156] In addition, in one possible implementation, after detecting a common signal, the terminal can determine the SFN of the system frame in which the common signal is located based on the common signal. Furthermore, after receiving a system message, the terminal can determine the first period, the first offset, and the period of the first common signal based on the system message, or the system message and predefined related content, that is, determine the transmission resource configuration of the first common signal and the transmission resource configuration of the second common signal. Thus, the terminal can determine which type of common signal the detected common signal is based on the obtained SFN, as well as the first period, the first offset, and the period of the first common signal, that is, determine the transmission resource configuration of the detected common signal and the transmission resource configuration of another common signal. The detected common signal is one of the two common signals.

[0157] For example, as shown in Figure 7, M=2, and the two common signals are the first SSB and the second SSB. Exemplarily, the first period can be carried by SIB1, and the period and first offset of the first SSB can be predefined. The first period is 2 system frames (or 20ms), and the first offset is 1 system frame (or 10ms). The period of the first SSB is 8 system frames (or 80ms). That is, the terminal can detect the first SSB or the second SSB in the second system frame of every 2 system frames. In other words, the terminal can detect the first SSB or the second SSB in the system frame with the system frame number Q1, where Q1 mod 2=1. It can be seen from the fact that the period of the first SSB is 8 system frames and the first offset that the first SSB will be transmitted in the second system frame of every 8 system frames, or in other words, the first SSB will be transmitted in the system frame with the system frame number Q2, where Q2 mod 8=1. Therefore, the second SSB is transmitted in the system frame with the system frame number Q3, where Q3 mod 2=1 and Q3 mod 8≠1.

[0158] Furthermore, after detecting an SSB, the terminal can obtain the SFN of the SSB based on the MIB in the SSB. After receiving SIB1, the terminal determines the first period according to SIB1, and then determines whether the detected SSB is the first SSB or the second SSB based on the obtained SFN, the predefined period of the first SSB, and the first offset. For example, if the SFN obtained by the terminal is 21, it determines that 21 satisfies Q3 mod 2 = 1 and Q3 mod 8 ≠ 1, and further determines that the detected SSB is the second SSB. Therefore, the terminal can determine the transmission resource configuration corresponding to the detected SSB, and thus can also determine the transmission resource configuration corresponding to the undetected SSB.

[0159] By adopting the above implementation method, the terminal can obtain the distribution of the two common signals in the first period, and then distinguish different common signals through different system frames, and detect the corresponding common signal on the corresponding transmission resource according to the transmission resource configuration of the two common signals.

[0160] Possible implementation 4:

[0161] The system message includes the periods of M-1 common signals, excluding the first common signal, among the M common signals, and the corresponding relationship between the periods of the M-1 common signals and the transmission patterns of the M-1 common signals. The period of the first common signal and / or the transmission pattern of the first common signal are predefined or carried in the system message.

[0162] For example, the system message includes the periods of M-1 common signals other than the first common signal among the M common signals, and the correspondence between the periods of the M-1 common signals and the transmission patterns of the M-1 common signals. The system message also includes the period of the first common signal, the correspondence between the period of the first common signal and the transmission pattern of the first common signal.

[0163] For another example, the system message includes the periods of M-1 common signals other than the first common signal among the M common signals, and the correspondence between the periods of the M-1 common signals and the transmission patterns of the M-1 common signals. The protocol predefines the period of the first common signal, the correspondence between the period of the first common signal and the transmission pattern of the first common signal.

[0164] It can be understood that if the protocol predefines the period of the first common signal, the correspondence between the period of the first common signal and the transmission pattern of the first common signal, that is, the protocol predefines the transmission resource configuration of the first common signal, then the terminal can determine the transmission resource configuration of the remaining M-1 common signals among the M common signals based on the system message.

[0165] For another example, the system message includes the periods of M-1 common signals other than the first common signal among the M common signals, and the correspondence between the periods of the M-1 common signals and the transmission patterns of the M-1 common signals. The system message also includes the period of the first common signal, and the protocol predefines the correspondence between the period of the first common signal and the transmission pattern of the first common signal.

[0166] For another example, the system message includes the periods of M-1 common signals other than the first common signal among the M common signals, and the correspondence between the periods of the M-1 common signals and the transmission patterns of the M-1 common signals. The system message also includes the correspondence between the period of the first common signal and the transmission pattern of the first common signal, and the protocol predefines the period of the first common signal.

[0167] For example, the transmission pattern of the common signal may be Case A, Case B, Case C, or a new transmission pattern defined by the protocol. The transmission patterns of multiple common signals may be predefined. For example, the transmission pattern of the common signal may be understood as an SSB pattern.

[0168] For example, the correspondence between the periods of the M-1 common signals and the transmission patterns of the M-1 common signals can be described as a mapping relationship between the periods of the M-1 common signals and the transmission patterns of the M-1 common signals, or a one-to-one mapping between the periods of the M-1 common signals and the transmission patterns of the M-1 common signals. The correspondence between the periods of the M-1 common signals and the transmission patterns of the M-1 common signals can be carried by the same field.

[0169] In addition, in one possible design, the terminal receives a third common signal, which is one of the M common signals. The third common signal carries first indication information, and the first indication information indicates the transmission pattern of the third common signal. For example, the first indication information is carried by the MIB in the SSB. Furthermore, the terminal can determine the period of the third common signal based on the transmission pattern of the third common signal and the correspondence between the period of the M common signals and the transmission patterns of the M common signals. It is understandable that the terminal can obtain the correspondence between the period of the M common signals and the transmission patterns of the M common signals through system messages, or system messages and predefined related content.

[0170] It can be understood that in possible implementation method 4, the transmission pattern of the common signal corresponding to each frequency band and SCS can be one or more.

[0171] For example, the transmission patterns of the M common signals are different from each other. Furthermore, the transmission patterns of the M common signals can ensure that the time domain resources corresponding to the M common signals do not overlap, or it can be understood that the time domain resources corresponding to the M common signals are completely orthogonal, and the time domain resources corresponding to the M common signals are different.

[0172] For example, as shown in Figure 8, M=2, and the two common signals are the first SSB and the second SSB. Exemplarily, the first SSB is a long-period SSB, the second SSB is a short-period SSB, the period of the first SSB is 8 system frames (or 80ms), and the period of the first SSB is predefined. The period of the second SSB is 4 system frames (or 40ms). SIB1 may include the period of the second SSB, and third indication information, the third indication information indicating the correspondence between the period of the first SSB and the transmission pattern of the first SSB, and the correspondence between the period of the second SSB and the transmission pattern of the second SSB. It can be understood that the first SSB and the second SSB may exist in the same system frame, or may also exist in different system frames, or always exist in different system frames, and this application does not limit this.

[0173] The specific content indicated by the third indication information is shown in Table 2 below: The time domain resources corresponding to Case X and the time domain resources corresponding to Case Y do not overlap.

[0174] Table 2

[0175] Furthermore, after detecting an SSB, the terminal can obtain the transmission pattern corresponding to the SSB based on the MIB in the SSB. For example, the transmission pattern corresponding to the SSB is Case Y. After receiving SIB1, the terminal determines the period of the second SSB and Table 2 based on SIB1, and then determines that the detected SSB is the second SSB and the period of the detected SSB is 40ms based on Table 2. Therefore, the terminal can determine the transmission resource configuration corresponding to the detected SSB, and can also determine the transmission resource configuration corresponding to the undetected SSB.

[0176] By adopting the above implementation method, the terminal can obtain the correspondence between the periods of M types of public signals and the transmission patterns of M types of public signals, and then distinguish different public signals through different transmission patterns, and detect the corresponding public signal on the corresponding transmission resource according to the transmission resource configuration of M types of public signals.

[0177] Possible implementation 5:

[0178] The system message includes the periods of M-1 common signals, excluding the first common signal, among the M common signals, and the corresponding relationship between the periods of the M-1 common signals and the second offsets of the M-1 common signals. The period of the first common signal and / or the second offset of the first common signal are predefined or carried in the system message.

[0179] For example, the system message includes the periods of M-1 common signals other than the first common signal among the M common signals, and the correspondence between the periods of the M-1 common signals and the second offsets of the M-1 common signals, as well as the correspondence between the period of the first common signal, the period of the first common signal and the second offset of the first common signal.

[0180] For another example, the system message includes the periods of M-1 common signals other than the first common signal among the M common signals, and the correspondence between the periods of the M-1 common signals and the second offsets of the M-1 common signals. The protocol defines the correspondence between the period of the first common signal, the period of the first common signal and the second offset of the first common signal.

[0181] It can be understood that if the protocol predefines the period of the first common signal, the correspondence between the period of the first common signal and the second offset of the first common signal, that is, the protocol predefines the transmission resource configuration of the first common signal, then the terminal can determine the transmission resource configuration of the remaining M-1 common signals among the M common signals based on the system message.

[0182] For another example, the system message includes the periods of M-1 common signals other than the first common signal among the M common signals, and the correspondence between the periods of the M-1 common signals and the second offsets of the M-1 common signals. The protocol defines the period of the first common signal, and the system message also includes the correspondence between the period of the first common signal and the second offset of the first common signal.

[0183] For another example, the system message includes the periods of M-1 common signals other than the first common signal among the M common signals, and the correspondence between the periods of the M-1 common signals and the second offsets of the M-1 common signals. The system message also includes the period of the first common signal, and the protocol predefines the correspondence between the period of the first common signal and the second offset of the first common signal.

[0184] The i-th common signal is any one of the M common signals. Taking the i-th common signal as an example, the second offset of the i-th common signal indicates an offset of the transmission resources of the i-th common signal relative to the transmission resources of the second common signal, where the transmission resources of the second common signal are determined based on a predefined transmission pattern. Furthermore, the second common signal may also be referred to as a reference common signal, a reference common signal, or the like, which is not limited in this application.

[0185] The second offset may be configured in units of time slots or symbols, or in units of milliseconds (ms), or in units of other time units, which is not limited in this application.

[0186] In one possible implementation, because different predefined transmission patterns have a one-to-one mapping relationship with the SCS and frequency band, when the SCS and frequency band are determined, the predefined transmission pattern is uniquely determined, and the transmission resources of the second public information are determined based on this uniquely determined predefined transmission pattern. For example, in conjunction with Table 1 above, the frequency band is n1, the SCS is 15 kHz, and the SSB Pattern is Case A. That is, the transmission pattern of the second public information is Case A, and the transmission resources of the second public information are determined based on Case A.

[0187] In one possible implementation, the base station may predefine a transmission pattern for the second common signal. The transmission pattern here may be Case A, Case B, Case C, etc., or a transmission pattern newly defined by the protocol, which is not limited in this application.

[0188] It should be noted that the second common signal may or may not belong to the M types of common signals. If the second common signal belongs to the M types of common signals, the base station may or may not send the second common signal, and this application does not limit this.

[0189] Exemplarily, the correspondence between the periods of the M-1 common signals and the second offsets of the M-1 common signals can be described as a mapping relationship between the periods of the M-1 common signals and the second offsets of the M-1 common signals, or a one-to-one mapping between the periods of the M-1 common signals and the second offsets of the M-1 common signals. The correspondence between the periods of the M-1 common signals and the second offsets of the M-1 common signals can be carried by the same field.

[0190] Exemplarily, the second offsets of the M common signals are different from each other. Furthermore, the second offsets of the M common signals can ensure that the time domain resources corresponding to the M common signals do not overlap, or it can be understood that the time domain resources corresponding to the M common signals are completely orthogonal, and the time domain resources corresponding to the M common signals are different.

[0191] In addition, in a possible design, the terminal receives a third common signal, which is one of the M common signals. The third common signal carries second indication information, and the second indication information indicates the second offset of the third common signal. For example, the second indication information is carried by the MIB in the SSB. Furthermore, the terminal can determine the period of the third common signal based on the second offset of the third common signal and the correspondence between the period of the M common signals and the second offset of the M common signals. It can be understood that the terminal can obtain the correspondence between the period of the M common signals and the second offset of the M common signals through system messages, or system messages and predefined related content.

[0192] For example, as shown in Figure 9, M=2, and the two common signals are the first SSB and the second SSB. Exemplarily, the first SSB is a long-period SSB, the second SSB is a short-period SSB, the period of the first SSB is 8 system frames (or 80ms), and the period of the first SSB is predefined. The period of the second SSB is 4 system frames (or 40ms). SIB1 may include the period of the second SSB, and fourth indication information, the third indication information indicates the correspondence between the period of the first SSB and the second offset of the first SSB, and the correspondence between the period of the second SSB and the second offset of the second SSB. It can be understood that the first SSB and the second SSB may exist in the same system frame, or may also exist in different system frames, or always exist in different system frames, and this application does not limit this.

[0193] The following Table 3 shows the specific content indicated by the fourth indication information.

[0194] Table 3

[0195] Furthermore, after detecting the SSB, the terminal can obtain the second offset corresponding to the SSB based on the MIB in the SSB. For example, the second offset corresponding to the SSB is 1 OFDM symbol. After receiving SIB1, the terminal determines the period of the second SSB and Table 3 according to SIB1, and then determines that the detected SSB is the second SSB according to Table 3, and the period of the detected SSB is 40ms. Therefore, the terminal can determine the transmission resource configuration corresponding to the detected SSB, and can also determine the transmission resource configuration corresponding to the undetected SSB.

[0196] By using the above implementation method, the terminal can obtain the correspondence between the periods of the M types of common signals and the second offsets of the M types of common signals, and then distinguish different common signals by different second offsets, and detect the corresponding common signals on the corresponding transmission resources according to the transmission resource configuration of the M types of common signals.

[0197] In addition, in one possible implementation, the system message may further indicate the actual transmission status of each of the M common signals. Exemplarily, the i-th common signal is any one of the M common signals. Taking the i-th common signal as an example, the system message further indicates the index of the actually transmitted common signal corresponding to the i-th common signal. For example, this may be indicated by the ssb-PositionsInBurst field corresponding to the i-th common signal in the system message.

[0198] In another possible implementation, the system message may further indicate the actual transmission status of each of the M-1 common signals. Exemplarily, the i-th common signal is any one of the M-1 common signals. Taking the i-th common signal as an example, the system message further indicates the index of the actually transmitted common signal corresponding to the i-th common signal, for example, it may be indicated by the ssb-PositionsInBurst field corresponding to the i-th common signal in the system message. The transmission status of the first common signal (for example, the index of the transmitted common signal corresponding to the i-th common signal) may be predefined or indicated by the system message, that is, the system message may further indicate the transmission status of the first common signal, or the protocol may predefine the transmission status of the first common signal.

[0199] It is understood that in order to implement the functions in the above embodiments, the terminal and base station include hardware structures and / or software modules corresponding to the execution of each function. Those skilled in the art should readily appreciate that, in conjunction with the units and method steps of the various examples described in the embodiments disclosed in this application, this 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 in a computer software-driven hardware manner depends on the specific application scenario and design constraints of the technical solution.

[0200] Figures 10 and 11 are schematic diagrams of possible communication devices provided in embodiments of the present application. These communication devices can be used to implement the functions of the terminal or base station in the above method embodiments, and thus can also achieve the beneficial effects of the above method embodiments.

[0201] As shown in Figure 10, the communication device 10000 includes a processing unit 1010 and a transceiver unit 1020. The communication device 1000 is used to implement the terminal or base station in the above method embodiment.

[0202] When the communication device 10000 is used to implement the functions of the terminal in the method embodiment shown in FIG4 :

[0203] The transceiver unit 1020 is used to send and receive information. The processing unit 1010 receives a system message through the transceiver unit 1020; and determines the transmission resource configuration of M types of common signals according to the system message, where M is an integer greater than 1.

[0204] In one possible design, the system message includes the periods of M-1 common signals other than the first common signal among the M common signals and / or the first offsets corresponding to the M-1 common signals respectively, and the period and / or the first offset of the first common signal are predefined or carried by the system message; wherein the first offset of the i-th common signal indicates the system frame in which the transmission resources of the i-th common signal are located within the period of the i-th common signal; the i-th common signal is any one of the M common signals.

[0205] In one possible design, the system message includes the period of the first common signal, the period of the second common signal and / or the half frame corresponding to the transmission resource of the second common signal is predefined, or carried by the system message, and the half frame corresponding to the transmission resource of the first common signal is different from the half frame corresponding to the transmission resource of the second common signal.

[0206] In one possible design, M=2; the M common signals include a first common signal and a second common signal; the system message includes a first period; the first bias and / or the period of the first common signal are predefined, or carried by the system message; wherein the first period and the first bias are used to determine a first transmission resource; the transmission resource of the first common signal is determined based on the period of the first common signal and the first bias; the transmission resources in the first transmission resource other than the transmission resources of the first common signal are the transmission resources of the second common signal.

[0207] In one possible design, the system message includes the periods of M-1 common signals among the M common signals except the first common signal, and the correspondence between the periods of the M-1 common signals and the transmission patterns of the M-1 common signals; the period of the first common signal and / or the transmission pattern of the first common signal are predefined or carried by the system message.

[0208] In one possible design, the transceiver unit 1020 is used to receive a third common signal, which is one of the M common signals; wherein the third common signal carries first indication information, and the first indication information indicates a transmission pattern of the third common signal.

[0209] In one possible design, the system message includes the periods of M-1 common signals among the M common signals except the first common signal, and the correspondence between the periods of the M-1 common signals and the second offsets of the M-1 common signals; the period of the first common signal and / or the second offset of the first common signal are predefined, or carried by the system message; wherein the second offset of the i-th common signal indicates the offset of the transmission resources of the i-th common signal relative to the transmission resources of the second common signal, the transmission resources of the second common signal are determined based on a predefined transmission pattern, and the i-th common signal is any one of the M common signals.

[0210] In one possible design, the transceiver unit 1020 is used to receive a third common signal, which is one of the M common signals; the third common signal carries second indication information, and the second indication information indicates a second offset of the third common signal.

[0211] When the communication device 10000 is used to implement the functions of the base station in the method embodiment shown in FIG4 :

[0212] The transceiver unit 1020 is used to send and receive information, and the processing unit 1010 sends N common signals out of M common signals through the transceiver unit 1020; M is an integer greater than 1, and N is a positive integer less than or equal to M; and sends a system message; the system message is used to determine the transmission resource configuration of the M common signals.

[0213] In one possible design, the system message includes the periods of M-1 common signals other than the first common signal among the M common signals and / or the first offsets corresponding to the M-1 common signals respectively, and the period and / or the first offset of the first common signal are predefined or carried by the system message; wherein the first offset of the i-th common signal indicates the system frame in which the transmission resources of the i-th common signal are located within the period of the i-th common signal; the i-th common signal is any one of the M common signals.

[0214] In one possible design, M=2; the M common signals include a first common signal and a second common signal; the system message includes the period of the first common signal, the period of the second common signal and / or the half frame corresponding to the transmission resource of the second common signal are predefined, or carried by the system message, and the half frame corresponding to the transmission resource of the first common signal is different from the half frame corresponding to the transmission resource of the second common signal.

[0215] In one possible design, M=2; the M common signals include a first common signal and a second common signal; the system message includes a first period; the first bias and / or the period of the first common signal are predefined, or carried by the system message; wherein the first period and the first bias are used to determine a first transmission resource; the transmission resource of the first common signal is determined based on the period of the first common signal and the first bias; the transmission resources in the first transmission resource other than the transmission resources of the first common signal are the transmission resources of the second common signal.

[0216] In one possible design, the system message includes the periods of M-1 common signals among the M common signals except the first common signal, and the correspondence between the periods of the M-1 common signals and the transmission patterns of the M-1 common signals; the period of the first common signal and / or the transmission pattern of the first common signal are predefined or carried by the system message.

[0217] In one possible design, the transceiver unit 1020 is used to send a third common signal, which is one of the M common signals; wherein the third common signal carries first indication information, and the first indication information indicates a transmission pattern of the third common signal.

[0218] In one possible design, the system message includes the periods of M-1 common signals among the M common signals except the first common signal, and the correspondence between the periods of the M-1 common signals and the second offsets of the M-1 common signals; the period of the first common signal and / or the second offset of the first common signal are predefined, or carried by the system message; wherein the second offset of the i-th common signal indicates the offset of the transmission resources of the i-th common signal relative to the transmission resources of the second common signal, the transmission resources of the second common signal are determined based on a predefined transmission pattern, and the i-th common signal is any one of the M common signals.

[0219] In one possible design, the transceiver unit 1020 is used to send a third common signal, which is one of the M common signals; the third common signal carries second indication information, and the second indication information indicates a second offset of the third common signal.

[0220] A more detailed description of the processing unit 1010 and the transceiver unit 1020 can be directly obtained by referring to the relevant description in the above method embodiment, and will not be repeated here.

[0221] As shown in Figure 11, communication device 1100 includes a processor 1110 and an interface circuit 1120. Processor 1110 and interface circuit 1120 are coupled to each other. It will be appreciated that interface circuit 1120 may be a transceiver or an input / output interface. Optionally, communication device 1100 may further include a memory 1130 for storing instructions executed by processor 1110, input data required by processor 1110 to execute instructions, or data generated by processor 1110 after executing instructions.

[0222] When the communication device 1100 is used to implement the method shown in FIG. 4 , the processor 1110 is used to implement the functions of the processing unit 1010 , and the interface circuit 1120 is used to implement the functions of the transceiver unit 1020 .

[0223] 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.

[0224] In this application, another example of a device is provided, which includes at least one processor and at least one memory, the at least one processor and the at least one memory being coupled, the at least one memory being used to store instructions. When the instructions are executed by the at least one processor, the communication device performs the method in the above-described embodiment. Taking the example of a communication device including a processor and a memory, as shown in FIG11 , a communication device 1100 includes a processor 1110 and a memory 1130. The processor 1110 and the memory 1130 are coupled, and the memory 1130 stores instructions. When the instructions stored in the memory 1130 are executed by the processor 1110, the communication device 1100 performs the method performed by the terminal device or base station in the above-described embodiment.

[0225] 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 the above-mentioned terminal device or base station. The processor and storage medium can also exist in the terminal device or base station as discrete components.

[0226] 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. The computer program product includes one or more computer programs or instructions. When the computer program or instructions are loaded and executed on a computer, the processes or functions described in the embodiments of the present application are performed 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 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 medium may be a magnetic medium, such as a floppy disk, hard disk, or magnetic tape; an optical medium, such as a digital video disk; or a semiconductor medium, such as a solid-state drive. The computer-readable storage medium may be a volatile or nonvolatile storage medium, or may include both volatile and nonvolatile types of storage media.

[0227] 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.

[0228] 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.

[0229] 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 includes: Receive system messages; The transmission resource configurations of M types of common signals are determined according to the system message, where M is an integer greater than 1.

2. The method according to claim 1, characterized in that The system message includes periods of M-1 common signals other than the first common signal among the M common signals and / or first offsets respectively corresponding to the M-1 common signals, where the period and / or the first offset of the first common signal are predefined or carried by the system message; The first offset of the i-th common signal indicates the system frame in which the transmission resource of the i-th common signal is located within the period of the i-th common signal; the i-th common signal is any one of the M common signals.

3. The method according to claim 1, characterized in that M=2; the M common signals include a first common signal and a second common signal; The system message includes the period of the first common signal, the period of the second common signal and / or the half frame corresponding to the transmission resource of the second common signal is predefined, or carried by the system message, and the half frame corresponding to the transmission resource of the first common signal is different from the half frame corresponding to the transmission resource of the second common signal.

4. The method according to claim 1, characterized in that M=2; the M common signals include a first common signal and a second common signal; the system message includes a first period; the first offset and / or the period of the first common signal is predefined or carried by the system message; The first period and the first offset are used to determine a first transmission resource; The transmission resource of the first common signal is determined based on the period of the first common signal and the first offset; The transmission resources in the first transmission resources except the transmission resources of the first common signal are the transmission resources of the second common signal.

5. The method according to claim 1, characterized in that The system message includes the periods of M-1 common signals among the M common signals except the first common signal, and the correspondence between the periods of the M-1 common signals and the transmission patterns of the M-1 common signals; the period of the first common signal and / or the transmission pattern of the first common signal are predefined or carried by the system message.

6. The method according to claim 5, characterized in that Also includes: receiving a third common signal, where the third common signal is one of the M common signals; The third common signal carries first indication information, and the first indication information indicates a transmission pattern of the third common signal.

7. The method according to claim 1, characterized in that The system message includes the period of M-1 common signals other than the first common signal among the M common signals, and the corresponding relationship between the period of the M-1 common signals and the second offset of the M-1 common signals; the period of the first common signal and / or the second offset of the first common signal are predefined or carried by the system message; Among them, the second offset of the i-th common signal indicates the offset of the transmission resources of the i-th common signal relative to the transmission resources of the second common signal, the transmission resources of the second common signal are determined based on a predefined transmission pattern, and the i-th common signal is any one of the M common signals.

8. The method according to claim 7, characterized in that Also includes: receiving a third common signal, where the third common signal is one of the M common signals; The third common signal carries second indication information, and the second indication information indicates a second offset of the third common signal.

9. A communication method, characterized in that: The method includes: Sending N common signals among M common signals; M is an integer greater than 1, and N is a positive integer less than or equal to M; Sending a system message; the system message is used to determine the transmission resource configuration of the M types of common signals.

10. The method according to claim 9, characterized in that The system message includes periods of M-1 common signals other than the first common signal among the M common signals and / or first offsets respectively corresponding to the M-1 common signals, where the period and / or the first offset of the first common signal are predefined or carried by the system message; The first offset of the i-th common signal indicates the system frame in which the transmission resource of the i-th common signal is located within the period of the i-th common signal; the i-th common signal is any one of the M common signals.

11. The method according to claim 9, characterized in that M=2; the M common signals include a first common signal and a second common signal; The system message includes the period of the first common signal, the period of the second common signal and / or the half frame corresponding to the transmission resource of the second common signal is predefined, or carried by the system message, and the half frame corresponding to the transmission resource of the first common signal is different from the half frame corresponding to the transmission resource of the second common signal.

12. The method according to claim 9, characterized in that M=2; the M common signals include a first common signal and a second common signal; the system message includes a first period; the first offset and / or the period of the first common signal is predefined or carried by the system message; The first period and the first offset are used to determine a first transmission resource; The transmission resource of the first common signal is determined based on the period of the first common signal and the first offset; The transmission resources in the first transmission resources except the transmission resources of the first common signal are the transmission resources of the second common signal.

13. The method according to claim 9, characterized in that The system message includes the periods of M-1 common signals among the M common signals except the first common signal, and the correspondence between the periods of the M-1 common signals and the transmission patterns of the M-1 common signals; the period of the first common signal and / or the transmission pattern of the first common signal are predefined or carried by the system message.

14. The method according to claim 13, characterized in that Also includes: Sending a third common signal, where the third common signal is one of the M common signals; The third common signal carries first indication information, and the first indication information indicates a transmission pattern of the third common signal.

15. The method according to claim 14, characterized in that The system message includes the period of M-1 common signals other than the first common signal among the M common signals, and the corresponding relationship between the period of the M-1 common signals and the second offset of the M-1 common signals; the period of the first common signal and / or the second offset of the first common signal are predefined or carried by the system message; Among them, the second offset of the i-th common signal indicates the offset of the transmission resources of the i-th common signal relative to the transmission resources of the second common signal, the transmission resources of the second common signal are determined based on a predefined transmission pattern, and the i-th common signal is any one of the M common signals.

16. The method according to claim 15, characterized in that Also includes: Sending a third common signal, where the third common signal is one of the M common signals; The third common signal carries second indication information, and the second indication information indicates a second offset of the third common signal.

17. A communication device, characterized in that: The method comprises a unit or a module for executing the method according to any one of claims 1 to 16.

18. A communication device, characterized in that: The communication device comprises at least one processor; the at least one processor is configured to execute the method according to any one of claims 1 to 16.

19. A computer-readable storage medium, characterized in that: The computer-readable storage medium includes a program, and when the program is run on a device, the device is caused to perform the method according to any one of claims 1 to 16.

20. A computer program product, characterized in that The computer program product comprises a program or instructions, and when the program or instructions are executed by a device, the device is caused to perform the method according to any one of claims 1 to 16.

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