Communication method and apparatus

Abstract

A communication method and apparatus, which are applied to the technical field of communications. The method comprises: receiving a synchronization signal and a broadcast channel on N time units, wherein the synchronization signal comprises a first signal and a second signal; when a first condition is met, the broadcast channel occupies one time unit among the N time units; when a second condition is met, the broadcast channel occupies at least two time units among the N time units; the first condition comprises at least one of the following: the second signal occupies a second time unit among the N time units, the sequence of the first signal is a first sequence, or the sequence of the second signal is a second sequence; and the second condition comprises at least one of the following: the sequence of the first signal is a third sequence, or the sequence of the second signal is a fourth sequence. Embodiments of the present application can be applied to various scenarios, and have good compatibility. In addition, when the broadcast channel occupies one time unit in time domain, the broadcast channel can occupy more bandwidths, thereby facilitating improvement of sensing performance.

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 February 4, 2024, with application number 202410169211.1 and application 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] As fifth-generation (5G) mobile communication systems evolve toward 5G-advanced (5G-A) technology, integrated communication and perception technology is considered a key technology for expanding the service capabilities of mobile communication networks. The core concept of this integrated communication and perception technology is to add perception capabilities to mobile communication networks, building capabilities such as target detection, tracking, and imaging. This allows communication and perception capabilities to coexist harmoniously and benefit from each other within a single network. The principle of perception technology is that a transmitting device sends radio waves (i.e., perception signals) in a specific direction. When these radio waves strike the target surface, they generate reflected radio waves (i.e., echo signals of the perception signals). The receiving device then receives and processes these reflected waves to obtain perception data, such as the target's location, velocity, or type. Improving perception performance is currently a key research topic.

[0005] Summary of the Invention

[0006] The embodiments of the present application provide a communication method and apparatus that can enable a broadcast channel to occupy more bandwidth, thereby improving perception performance.

[0007] In a first aspect, the present application provides a communication method, which can be performed by a first communication device, or can also be performed by a device including the first communication device, or can also be performed by a chip system (or, chip) or other functional module, which can implement the functions of the first communication device, for example, the chip system or functional module is set in the first communication device. For example, the first communication device can be a network device, or it can also be a terminal device, without limitation.

[0008] Taking a first communication device as an example, the method may include: the first communication device receiving a synchronization signal and a broadcast channel; or the first communication device receiving a synchronization signal and a broadcast channel, and decoding the broadcast channel based on the synchronization signal. The synchronization signal and the broadcast channel occupy N time units, the synchronization signal includes a first signal and a second signal, the first signal occupies the first time unit of the N time units, and N is a positive integer; if a first condition is met, the broadcast channel occupies one time unit of the N time units; if a second condition is met, the broadcast channel occupies at least two time units of the N time units. The first condition may include one or more of the following: the second signal occupies the second time unit of the N time units, the sequence of the first signal is the first sequence, or the sequence of the second signal is the second sequence. The second condition may include one or more of the following: the sequence of the first signal is the third sequence, or the sequence of the second signal is the fourth sequence; and the first sequence is different from the third sequence, and the second sequence is different from the fourth sequence.

[0009] Optionally, the synchronization signal and the broadcast channel may be used for sensing. For example, the first communication device may also perform sensing processing based on the synchronization signal and the broadcast channel.

[0010] In the above embodiment, when the broadcast channel occupies one time unit in the time domain, the broadcast channel can occupy more frequency domain units in the frequency domain, that is, the broadcast channel can occupy more bandwidth in the frequency domain. Perception performance is related to the bandwidth occupied by the perception signal. Generally, the more bandwidth the perception signal occupies, the better the perception performance based on the perception signal. Therefore, the broadcast channel provided in the embodiment of the present application is conducive to improving perception performance when used for perception. Furthermore, the embodiment of the present application can be adapted to scenarios where the broadcast channel occupies only one time unit in the time domain, and can also be adapted to scenarios where the broadcast channel occupies at least two time units in the time domain, and has good compatibility.

[0011] In one possible implementation, a time unit may be the second time unit among N time units, and the second signal may occupy the second time unit or the third time unit among the N time units; or, a time unit may be the third time unit among N time units, and the second signal may occupy the second time unit among the N time units.

[0012] In the above implementation, the broadcast channel can occupy the second or third of N time units in the time domain, providing flexibility. Furthermore, when the broadcast channel occupies one time unit, the synchronization signal and broadcast channel can occupy three or two time units, reducing the transmission delay of the synchronization signal and broadcast channel compared to four time units.

[0013] In a possible implementation, the first signal and the second signal occupy the same frequency domain unit in the frequency domain, and the number of frequency domain units occupied by the broadcast channel in the frequency domain is greater than the number of frequency domain units occupied by the first signal in the frequency domain.

[0014] In one possible implementation, the first signal and the second signal each occupy X consecutive frequency domain units in the frequency domain, and the broadcast channel occupies Y consecutive frequency domain units in the frequency domain, where X and Y are both positive integers. Optionally, the value of X can be 127, without limitation. Optionally, the value of Y can be 480, or the value of Y can be 576, without limitation.

[0015] Alternatively, the first signal and the second signal both occupy X consecutive frequency domain units in the frequency domain, and the broadcast channel occupies K1 consecutive frequency domain units and K2 consecutive frequency domain units in the frequency domain, wherein the frequency of the first frequency domain unit with the largest frequency among the K1 frequency domain units is less than the frequency of the second frequency domain unit with the smallest frequency among the K2 frequency domain units, and the difference between the frequency of the first frequency domain unit and the frequency of the second frequency domain unit is M times the frequency domain unit interval, X, K1 and K2 are all positive integers, and M is a positive integer. Optionally, the value of X can be 127. Optionally, the values ​​of K1 and K2 can both be 240, or the values ​​of K1 and K2 can both be 288, without limitation. Optionally, K1 can be greater than X.

[0016] Through the above implementation, in the frequency domain, the broadcast channel can occupy continuous frequency domain units, or the broadcast channel can also occupy discontinuous frequency domain units, and the implementation is flexible.

[0017] In one possible implementation, the end number of K1 frequency domain units is (K1-1), the starting number of X frequency domain units is K3, and the starting number of K2 frequency domain units is greater than or equal to (X+K3), where K3 is an integer greater than or equal to K1.

[0018] Through the above implementation, in the frequency domain, the frequency domain unit occupied by the broadcast channel does not overlap with the frequency domain unit occupied by the first signal, which can reduce signal interference.

[0019] Exemplarily, the resources occupied by the synchronization signal and the broadcast channel may be any one of the following:

[0020] The second signal occupies the second time unit of the N time units, the broadcast channel occupies the third time unit of the N time units, the first signal and the second signal both occupy X consecutive frequency domain units in the frequency domain, and the broadcast channel occupies Y consecutive frequency domain units in the frequency domain;

[0021] Alternatively, the second signal occupies a third time unit among the N time units, the broadcast channel occupies a second time unit among the N time units, the first signal and the second signal both occupy X consecutive frequency domain units in the frequency domain, and the broadcast channel occupies Y consecutive frequency domain units in the frequency domain;

[0022] Alternatively, the second signal occupies a second time unit among the N time units, the broadcast channel occupies a third time unit among the N time units, the first signal and the second signal both occupy X consecutive frequency domain units in the frequency domain, and the broadcast channel occupies K1 consecutive frequency domain units and K2 consecutive frequency domain units in the frequency domain, where the end number of the K1 frequency domain units is (K1-1), the start number of the X frequency domain units is K3, the start number of the K2 frequency domain units is greater than or equal to (X+K3), and K3 is an integer greater than or equal to K1;

[0023] Alternatively, the second signal occupies the third time unit of the N time units, the broadcast channel occupies the second time unit of the N time units, the first signal and the second signal both occupy X consecutive frequency domain units in the frequency domain, and the broadcast channel occupies K1 consecutive frequency domain units and K2 consecutive frequency domain units in the frequency domain, where the end number of the K1 frequency domain units is (K1-1), the start number of the X frequency domain units is K3, the start number of the K2 frequency domain units is greater than or equal to (X+K3), and K3 is an integer greater than or equal to K1;

[0024] Alternatively, the second signal and the broadcast channel occupy a second time unit of the N time units, the first signal and the second signal both occupy X consecutive frequency domain units in the frequency domain, and the broadcast channel occupies K1 consecutive frequency domain units and K2 consecutive frequency domain units in the frequency domain, where the end number of the K1 frequency domain units is (K1-1), the start number of the X frequency domain units is K3, the start number of the K2 frequency domain units is greater than or equal to (X+K3), and K3 is an integer greater than or equal to K1;

[0025] Wherein, Y is greater than X, K3 is greater than or equal to K1, and X, Y, K1, K2 and K3 are all positive integers.

[0026] In one possible implementation, the second signal occupies a second time unit among the N time units, the broadcast channel occupies a third time unit among the N time units, the first signal and the second signal both occupy X consecutive frequency domain units in the frequency domain, and the broadcast channel occupies Y consecutive frequency domain units in the frequency domain; or,

[0027] The second signal occupies the third time unit of the N time units, the broadcast channel occupies the second time unit of the N time units, the first signal and the second signal both occupy X consecutive frequency domain units in the frequency domain, and the broadcast channel occupies Y consecutive frequency domain units in the frequency domain; or

[0028] The second signal occupies the second time unit of the N time units, the broadcast channel occupies the third time unit of the N time units, the first signal and the second signal both occupy X consecutive frequency domain units in the frequency domain, and the broadcast channel occupies K1 consecutive frequency domain units and K2 consecutive frequency domain units in the frequency domain, where the end number of the K1 frequency domain units is (K1-1), the start number of the X frequency domain units is K3, the start number of the K2 frequency domain units is greater than or equal to (X+K3), and K3 is an integer greater than or equal to K1; or,

[0029] The second signal occupies the third time unit of the N time units, the broadcast channel occupies the second time unit of the N time units, the first signal and the second signal both occupy X consecutive frequency domain units in the frequency domain, and the broadcast channel occupies K1 consecutive frequency domain units and K2 consecutive frequency domain units in the frequency domain, where the end number of the K1 frequency domain units is (K1-1), the start number of the X frequency domain units is K3, the start number of the K2 frequency domain units is greater than or equal to (X+K3), and K3 is an integer greater than or equal to K1; or,

[0030] The second signal and the broadcast channel occupy the second time unit of the two time units. The first signal and the second signal both occupy X consecutive frequency domain units in the frequency domain. The broadcast channel occupies K1 consecutive frequency domain units and K2 consecutive frequency domain units in the frequency domain. The K1 frequency domain units end with (K1-1), the X frequency domain units start with K3, and the K2 frequency domain units start with (X+K3), where K3 is an integer greater than or equal to K1.

[0031] Wherein, Y is greater than X, K3 is greater than or equal to K1, and X, Y, K1, K2 and K3 are all positive integers.

[0032] In a second aspect, the present application provides a communication method, which can be performed by a second communication device, or can also be performed by a device including the second communication device, or can also be performed by a chip system (or, chip) or other functional module, which can implement the functions of the second communication device, for example, the chip system or functional module is set in the second communication device. For example, the second communication device can be a network device, or it can also be a terminal device, without limitation.

[0033] Taking the second communication device as the execution subject as an example, the method may include: the second communication device sends a synchronization signal and a broadcast channel; or the second communication device determines the synchronization signal and the broadcast channel, and sends the synchronization signal and the broadcast channel. The synchronization signal and the broadcast channel occupy N time units, the synchronization signal includes a first signal and a second signal, the first signal occupies the first time unit of the N time units, and N is a positive integer; if the first condition is met, the broadcast channel occupies one time unit of the N time units; if the second condition is met, the broadcast channel occupies at least two time units of the N time units; the first condition includes one or more of the following: the second signal occupies the second time unit of the N time units, the sequence of the first signal is the first sequence, or the sequence of the second signal is the second sequence; the second condition includes one or more of the following: the sequence of the first signal is the third sequence, or the sequence of the second signal is the fourth sequence; the first sequence is different from the third sequence, and the second sequence is different from the fourth sequence.

[0034] Optionally, the synchronization signal and the broadcast channel may be used for sensing. For example, the second communication device may also receive the synchronization signal and the echo signal of the broadcast channel, and perform sensing processing based on the synchronization signal and the echo signal of the broadcast channel.

[0035] In one possible implementation, a time unit may be the second time unit among N time units, and the second signal may occupy the second time unit or the third time unit among the N time units; or, a time unit may be the third time unit among N time units, and the second signal may occupy the second time unit among the N time units.

[0036] In a possible implementation, the first signal and the second signal occupy the same frequency domain unit in the frequency domain, and the number of frequency domain units occupied by the broadcast channel in the frequency domain is greater than the number of frequency domain units occupied by the first signal in the frequency domain.

[0037] In one possible implementation, the first signal and the second signal each occupy X consecutive frequency domain units in the frequency domain, and the broadcast channel occupies Y consecutive frequency domain units in the frequency domain, where X and Y are both positive integers. Optionally, the value of X can be 127, without limitation. Optionally, the value of Y can be 480, or the value of Y can be 576, without limitation.

[0038] Alternatively, the first signal and the second signal both occupy X consecutive frequency domain units in the frequency domain, and the broadcast channel occupies K1 consecutive frequency domain units and K2 consecutive frequency domain units in the frequency domain, wherein the frequency of the first frequency domain unit with the largest frequency among the K1 frequency domain units is less than the frequency of the second frequency domain unit with the smallest frequency among the K2 frequency domain units, and the difference between the frequency of the first frequency domain unit and the frequency of the second frequency domain unit is M times the frequency domain unit interval, X, K1 and K2 are all positive integers, and M is a positive integer. Optionally, the value of X can be 127. Optionally, the values ​​of K1 and K2 can both be 240, or the values ​​of K1 and K2 can both be 288, without limitation. Optionally, K1 can be greater than X.

[0039] In one possible implementation, the end number of K1 frequency domain units is (K1-1), the starting number of X frequency domain units is K3, and the starting number of K2 frequency domain units is greater than or equal to (X+K3), where K3 is an integer greater than or equal to K1.

[0040] Exemplarily, the resources occupied by the synchronization signal and the broadcast channel may be any one of the following:

[0041] The second signal occupies the second time unit of the N time units, the broadcast channel occupies the third time unit of the N time units, the first signal and the second signal both occupy X consecutive frequency domain units in the frequency domain, and the broadcast channel occupies Y consecutive frequency domain units in the frequency domain;

[0042] Alternatively, the second signal occupies a third time unit among the N time units, the broadcast channel occupies a second time unit among the N time units, the first signal and the second signal both occupy X consecutive frequency domain units in the frequency domain, and the broadcast channel occupies Y consecutive frequency domain units in the frequency domain;

[0043] Alternatively, the second signal occupies a second time unit among the N time units, the broadcast channel occupies a third time unit among the N time units, the first signal and the second signal both occupy X consecutive frequency domain units in the frequency domain, and the broadcast channel occupies K1 consecutive frequency domain units and K2 consecutive frequency domain units in the frequency domain, where the end number of the K1 frequency domain units is (K1-1), the start number of the X frequency domain units is K3, the start number of the K2 frequency domain units is greater than or equal to (X+K3), and K3 is an integer greater than or equal to K1;

[0044] Alternatively, the second signal occupies the third time unit of the N time units, the broadcast channel occupies the second time unit of the N time units, the first signal and the second signal both occupy X consecutive frequency domain units in the frequency domain, and the broadcast channel occupies K1 consecutive frequency domain units and K2 consecutive frequency domain units in the frequency domain, where the end number of the K1 frequency domain units is (K1-1), the start number of the X frequency domain units is K3, the start number of the K2 frequency domain units is greater than or equal to (X+K3), and K3 is an integer greater than or equal to K1;

[0045] Alternatively, the second signal and the broadcast channel occupy a second time unit of the N time units, the first signal and the second signal both occupy X consecutive frequency domain units in the frequency domain, and the broadcast channel occupies K1 consecutive frequency domain units and K2 consecutive frequency domain units in the frequency domain, where the end number of the K1 frequency domain units is (K1-1), the start number of the X frequency domain units is K3, the start number of the K2 frequency domain units is greater than or equal to (X+K3), and K3 is an integer greater than or equal to K1;

[0046] Wherein, Y is greater than X, K3 is greater than or equal to K1, and X, Y, K1, K2 and K3 are all positive integers.

[0047] In one possible implementation, the second signal occupies a second time unit among the N time units, the broadcast channel occupies a third time unit among the N time units, the first signal and the second signal both occupy X consecutive frequency domain units in the frequency domain, and the broadcast channel occupies Y consecutive frequency domain units in the frequency domain; or,

[0048] The second signal occupies the third time unit of the N time units, the broadcast channel occupies the second time unit of the N time units, the first signal and the second signal both occupy X consecutive frequency domain units in the frequency domain, and the broadcast channel occupies Y consecutive frequency domain units in the frequency domain; or

[0049] The second signal occupies the second time unit of the N time units, the broadcast channel occupies the third time unit of the N time units, the first signal and the second signal both occupy X consecutive frequency domain units in the frequency domain, and the broadcast channel occupies K1 consecutive frequency domain units and K2 consecutive frequency domain units in the frequency domain, where the end number of the K1 frequency domain units is (K1-1), the start number of the X frequency domain units is K3, the start number of the K2 frequency domain units is greater than or equal to (X+K3), and K3 is an integer greater than or equal to K1; or,

[0050] The second signal occupies the third time unit of the N time units, the broadcast channel occupies the second time unit of the N time units, the first signal and the second signal both occupy X consecutive frequency domain units in the frequency domain, and the broadcast channel occupies K1 consecutive frequency domain units and K2 consecutive frequency domain units in the frequency domain, where the end number of the K1 frequency domain units is (K1-1), the start number of the X frequency domain units is K3, the start number of the K2 frequency domain units is greater than or equal to (X+K3), and K3 is an integer greater than or equal to K1; or,

[0051] The second signal and the broadcast channel occupy the second time unit of the two time units. The first signal and the second signal both occupy X consecutive frequency domain units in the frequency domain. The broadcast channel occupies K1 consecutive frequency domain units and K2 consecutive frequency domain units in the frequency domain. The K1 frequency domain units end with (K1-1), the X frequency domain units start with K3, and the K2 frequency domain units start with (X+K3), where K3 is an integer greater than or equal to K1.

[0052] Wherein, Y is greater than X, K3 is greater than or equal to K1, and X, Y, K1, K2 and K3 are all positive integers.

[0053] In a third aspect, the present application provides a communication device, which can be used to execute the method described in the first aspect and any possible implementation thereof. The communication device can be, for example, a first communication device.

[0054] In a possible implementation, the communication device may include a baseband device and a radio frequency device.

[0055] In another possible implementation, the communication device may include a processing module (sometimes also referred to as a processing unit) and a transceiver module (sometimes also referred to as a transceiver unit). The transceiver module can implement both sending and receiving functions. When the transceiver module implements the sending function, it may be referred to as a sending module (sometimes also referred to as a sending unit); when the transceiver module implements the receiving function, it may be referred to as a receiving module (sometimes also referred to as a receiving unit). The sending module and the receiving module may be the same functional module, referred to as a transceiver module, which is capable of both sending and receiving functions; alternatively, the sending module and the receiving module may be different functional modules, with the transceiver module being a general term for these functional modules.

[0056] In a fourth aspect, the present application provides a communication device, which can be used to execute the method described in the second aspect and any possible implementation thereof. The communication device can be, for example, the second communication device.

[0057] In a possible implementation, the communication device may include a baseband device and a radio frequency device.

[0058] In another possible implementation, the communication device may include a processing module (sometimes also referred to as a processing unit) and a transceiver module (sometimes also referred to as a transceiver unit). The transceiver module can implement both sending and receiving functions. When the transceiver module implements the sending function, it may be referred to as a sending module (sometimes also referred to as a sending unit); when the transceiver module implements the receiving function, it may be referred to as a receiving module (sometimes also referred to as a receiving unit). The sending module and the receiving module may be the same functional module, referred to as a transceiver module, which is capable of both sending and receiving functions; alternatively, the sending module and the receiving module may be different functional modules, with the transceiver module being a general term for these functional modules.

[0059] In a fifth aspect, the present application provides a communication system, which includes the communication device described in the third aspect above and / or the communication device described in the fourth aspect above.

[0060] In a sixth aspect, the present application further provides a communication device. The communication device may include one or more processors. Optionally, the communication device may further include a memory. The memory is configured to store one or more computer programs or instructions. The one or more processors are configured to execute the one or more computer programs or instructions stored in the memory, so that the communication device performs the method described in the first aspect or the second aspect above, and any possible implementation thereof.

[0061] In the seventh aspect, the present application also provides a computer-readable storage medium, which is used to store a computer program. When the computer program is run on a computer, the computer executes the method described in the first aspect or the second aspect and any possible implementation method thereof.

[0062] In an eighth aspect, the present application also provides a computer program product, which includes a computer program. When the computer program is run on a computer, the computer executes the method described in the first aspect or the second aspect and any possible implementation thereof.

[0063] For the technical effects that can be achieved in the above-mentioned second to eighth aspects and any possible implementation methods, please refer to the technical effects that can be achieved in the above-mentioned first aspect and any possible implementation methods, and no repetition will be given. BRIEF DESCRIPTION OF THE DRAWINGS

[0064] FIG1 is a schematic diagram of a network architecture of a communication system;

[0065] FIG2 is a schematic diagram of a perception scenario;

[0066] FIG3 is a schematic diagram of an SSB;

[0067] FIG4 is a flow chart of a communication method provided in an embodiment of the present application;

[0068] 5 to 10 are schematic diagrams of synchronization signals and broadcast channels provided in embodiments of the present application;

[0069] FIG11 is a schematic structural diagram of a communication device provided in an embodiment of the present application;

[0070] FIG12 is a schematic structural diagram of another communication device provided in an embodiment of the present application;

[0071] FIG13 is a schematic structural diagram of another communication device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0072] In order to make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the embodiments of the present application will be further described in detail below with reference to the accompanying drawings.

[0073] The network architecture and business scenarios described in this application are intended to more clearly illustrate the technical solutions of the embodiments of this application, and do not constitute a limitation on the technical solutions provided by the embodiments of this application. Ordinary technicians in this field will know that with the evolution of network architecture and the emergence of new business scenarios, the technical solutions provided by the embodiments of this application are also applicable to similar technical problems.

[0074] In the embodiments of the present application, "multiple" may refer to two or more. In view of this, in the embodiments of the present application, "multiple" may also be understood as "at least two". "At least one" may be understood as one or more, for example, one, two or more. For example, "including at least one" means including one, two or more. For example, including at least one of A, B and C, then included may be A, B, C, A and B, A and C, B and C, or A, B and C. "And / or" describes the association relationship of associated objects. Specifically, there may be three relationships. For example, A and / or B may represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / ", unless otherwise specified, generally indicates that the previous and subsequent associated objects are in an "or" relationship.

[0075] In addition, the terms "system" and "network" in the embodiments of the present application may be used interchangeably, and "according to" and "based on" may be used interchangeably.

[0076] In the embodiments of this application, ordinal numbers such as "first" and "second" are generally used to distinguish different objects and are not used to define the order, timing, priority, or importance of multiple objects. For example, in the embodiments of this application, the first communication device and the second communication device are used to distinguish between two communication devices and do not define the priority or importance of the two communication devices.

[0077] The embodiments of the present application will be presented around a system including multiple devices, components, modules, etc. It should be understood that the system may include other devices, components, modules, etc. not mentioned, or may only include some of the devices, components, or modules, etc. mentioned in the embodiments.

[0078] The following first introduces a communication system to which the embodiments of the present application are applicable.

[0079] The technical solutions of the embodiments of the present application can be applied to various communication systems, for example, universal mobile telecommunications system (UMTS), wireless local area network (WLAN), short-range wireless communication systems (such as sidelink, wireless fidelity (Wi-Fi), Bluetooth, etc.), wired networks, vehicle-to-everything (V2X) communication systems, device-to-device (D2D) communication systems, Internet of Vehicles communication systems, 4th generation (4G) mobile communication systems (such as long term evolution (LTE) systems), LTE frequency division duplex (FDD) systems, LTE time division duplex (TDD) systems, worldwide interoperability for microwave access (WiMAX) communication systems, fifth generation (5G) mobile communication systems (such as new radio (NR) systems), future communication systems (such as sixth generation (6G) systems), and the like. The present invention relates to a mobile communication system (generation, 6G) or other similar communication systems, without limitation. The embodiments of the present application are described using the communication system shown in FIG1 as an example. When the technical solutions of the embodiments of the present application are applied to other communication systems, the devices, components, modules, etc. in the embodiments can be replaced with corresponding devices, components, modules in other communication systems without limitation.

[0080] Figure 1 is a schematic diagram of the architecture of the communication system used in the embodiment of the present application. As shown in Figure 1, the communication system includes an access network 100 and a core network 200. Optionally, the communication system may also include the Internet 300. The access network 100 may include at least one radio access network (RAN) node, such as 110a and 110b in Figure 1, and may also include at least one terminal device, such as 120a-120j in Figure 1. 110a is a base station, 110b is a micro station, 120a, 120e, 120f, and 120j are mobile phones, 120b is a car, 120c is a gas pump, 120d is a home access point (HAP) arranged indoors or outdoors, 120g is a laptop, 120h is a printer, and 120i is a drone. The same terminal device or network device can provide different functions in different application scenarios. For example, in FIG1 , there are mobile phones 120 a , 120 e , 120 f , and 120 j . Mobile phone 120 a can access base station 110 a , connect to car 120 b , communicate directly with mobile phone 120 e , and access HAP. Car 120 b can access HAP and communicate directly with mobile phone 120 a . Mobile phone 120 f can access micro station 110 b , connect to laptop computer 120 g , and connect to printer 120 h . Mobile phone 120 j can control drone 120 i .

[0081] A network device is a network-side device with wireless transceiver functions. The network device may be a device in a radio access network (RAN) that provides wireless communication functions for terminal devices, referred to as a RAN device; or the network device may also be a core network device. For ease of understanding, the following description takes the network device as a RAN device as an example. The RAN may be an access network in the 3rd Generation Partnership Project (3GPP), such as 4G, 5G, or the future-oriented 6G network. The RAN may also be an open access network (open RAN, O-RAN or ORAN), a cloud radio access network (CRAN), or a communication network of two or more of the above networks. The RAN device may 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 base station in a 6G mobile communication system, a base station in a future mobile communication system, an access node in a Wi-Fi system, a wireless relay node, or a wireless backhaul node, etc.

[0082] The RAN device can also be a module or unit that performs some of the functions of the base station, for example, it can be a centralized unit (CU), a distributed unit (DU), or a radio unit (RU). The CU here performs the functions of the radio resource control protocol and packet data convergence protocol (PDCP) of the base station, and can also perform the function of the service data adaptation protocol (SDAP); the DU performs the functions of the radio link control layer and medium access control (MAC) layer of the base station, and can also perform some or all of the physical layer functions. For detailed descriptions of the above-mentioned protocol layers, please refer to the relevant technical specifications of the 3rd Generation Partnership Project (3GPP). The CU and DU can be set separately, or they can be included in the same network element, such as the baseband unit (BBU). The RU can be included in a radio frequency device or radio frequency unit, such as a remote radio unit (RRU), an active antenna unit (AAU), or a remote radio head (RRH). In different systems, CU, DU or RU may have different names, but those skilled in the art can understand their meanings. For example, in the ORAN system, CU may also be called O-CU (open CU), DU may also be called O-DU, and RU may also be called O-RU. Any unit of CU (or CU-CP, CU-UP), DU and RU in this application may be implemented by a software module, a hardware module, or a combination of a software module and a hardware module. The network device may 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 or a donor node, etc. The embodiments of this application do not limit the specific technology and specific device form adopted by the network device.

[0083] In the embodiments of the present application, the functions of the network device may be performed by a module (such as a chip) in the network device, or by a control subsystem that includes the network device functions. The control subsystem that includes the network device functions may be a control center in the aforementioned application scenarios such as smart grid, industrial control, smart transportation, and smart city.

[0084] A terminal device is a user-side device with wireless transceiver capabilities. A terminal device may also be referred to as a terminal, user equipment (UE), user terminal, user device, user unit, user station, access terminal, access station, UE station, remote station, wireless communication device, mobile station, or mobile terminal. Terminal devices can be widely used in various scenarios, such as D2D communication, V2X communication, machine-to-machine (M2M) communication or machine-type communication (MTC), the Internet of Things (IoT), virtual reality (VR), augmented reality (AR), industrial control, self-driving, remote medical, smart grid, smart furniture, smart office, smart wearable, smart transportation, and smart city. Terminal devices can be mobile phones, tablets, computers with wireless transceiver capabilities, wearable devices, vehicles, drones, helicopters, airplanes, ships, robots, robotic arms, smart home devices, and more.

[0085] In the embodiments of the present application, the apparatus for implementing the functions of the terminal device may be the terminal device, or may be an apparatus capable of supporting the terminal device in implementing the functions, such as a chip system or a combination of devices or components capable of implementing the functions of the terminal device, and the apparatus may be installed in the terminal device. The embodiments of the present application do not limit the specific technology or specific device form adopted by the terminal device.

[0086] Network devices and terminal devices can be fixed or mobile. They can be deployed on land, including indoors or outdoors, handheld or vehicle-mounted; on water; and in the air on aircraft, balloons, and satellites. The embodiments of this application do not limit the application scenarios of network devices and terminal devices.

[0087] The roles of network devices and terminal devices can be relative. For example, the helicopter or drone 120i in Figure 1 can be configured as a mobile network device. To terminal devices 120j accessing the wireless access network 100 via 120i, terminal device 120i is a network device. However, to network device 110a, 120i is a terminal device, 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 an interface protocol between network devices. In this case, 120i is also a network device relative to 110a. Therefore, both network devices and terminal devices can be collectively referred to as communication devices. 110a and 110b in Figure 1 can be referred to as communication devices with network device functionality, while 120a-120j in Figure 1 can be referred to as communication devices with terminal device functionality.

[0088] Network devices and terminal devices, network devices and network devices, and terminal devices and terminal devices can communicate through licensed spectrum, through unlicensed spectrum, or through both licensed and unlicensed spectrum at the same time, without any restrictions.

[0089] Next, the technical features involved in the embodiments of this application are introduced.

[0090] 1. Communication and perception integration

[0091] As 5G mobile communication systems evolve towards 5G-A, integrated communication and perception technology is considered a key technology for expanding the service capabilities of mobile communication networks. The core concept of this technology is to add perception capabilities to mobile communication networks, building capabilities such as target detection, tracking, and imaging. This allows communication and perception capabilities to be integrated into a single network, achieving harmonious coexistence and mutual benefit.

[0092] Perception technology can generally be divided into two modes: single-station perception and dual-station perception. The single-station perception mode refers to the case where the transmitter device of the perception signal and the receiver device of the echo signal of the perception signal are the same device. In other words, in the single-station perception mode, the transmitter device must both transmit the perception signal and receive the echo signal reflected by the perception signal on the target surface. Therefore, the single-station perception mode can also be referred to as a self-transmitting and self-receiving mode, without limitation. The dual-station perception mode refers to the case where the transmitter device of the perception signal and the receiver device of the echo signal of the perception signal are two different devices. In other words, perception station A transmits the perception signal, and the echo signal reflected by the perception signal on the target surface is received by perception station B. Therefore, the dual-station perception mode can also be referred to as an A-transmitting and B-receiving mode, or a self-transmitting and other-receiving mode.

[0093] Figure 2 exemplarily shows a schematic diagram of a perception scenario applicable to the embodiment of the present application. Figure 2 provides three perception scenarios applicable to the embodiment of the present application, namely: a scenario in which network device A sends and receives a perception signal by itself, that is, a scenario in which network device A sends a perception signal and receives an echo signal, as shown in (1) in Figure 2; a scenario in which network device A sends a perception signal and network device B receives an echo signal, as shown in (2) in Figure 2; a scenario in which network device A sends a perception signal and terminal device A receives an echo signal, as shown in (3) in Figure 2. Figure 2 takes the perception target as a vehicle and the terminal device as a smartphone as an example.

[0094] The sensing target may also be referred to as a target, a detected target, a sensed object, a detected object, or a sensed device, etc., without limitation. The sensing target may be any tangible object in the environment that can reflect electromagnetic waves. For example, the sensing target may be a stationary object such as a mountain, a forest, or a building. For another example, the sensing target may also be a movable object such as a vehicle, a drone, a pedestrian, or a terminal device. The embodiments of the present application do not limit the specific implementation form of the sensing target.

[0095] 2. Synchronization signal physical broadcast channel block (SSB)

[0096] SSB is defined in the new radio (NR) technology of the 5G mobile communication system. An SSB includes a primary synchronization signal (PSS), a secondary synchronization signal (SSS) and a physical broadcast channel (PBCH). Figure 3 shows an exemplary schematic diagram of an SSB. As shown in Figure 3, in the time domain, an SSB occupies four consecutive orthogonal frequency division multiplexing (OFDM) symbols. In the frequency domain, an SSB occupies 240 consecutive subcarriers, and these 240 subcarriers can be numbered from 0 to 239. Among them, the first OFDM symbol of the four OFDM symbols is used to carry PSS, the subcarriers numbered 0, 1, ..., 55, 183, 184, ..., 239 are set to 0, and the subcarriers numbered 56, 57, ..., 182 are used to carry PSS; the second OFDM symbol and the fourth OFDM symbol of the four OFDM symbols are used to carry PBCH, and one subcarrier in every 4 consecutive subcarriers is used to carry the demodulation reference signal (DMRS) corresponding to the PBCH, which is not shown in Figure 3; the third OFDM symbol of the four OFDM symbols is used to carry SSS and PBCH, the subcarriers numbered 56, 57, ..., 182 are used to carry SSS, the subcarriers numbered 0, 1, ..., 47, 192, 193, ..., 239 are used to carry PBCH, and the remaining subcarriers are set to 0. In an OFDM-based communication system, a resource block (RB) typically includes 12 consecutive subcarriers, which can be numbered from 0 to 11. Therefore, the 240 subcarriers occupied by an SSB can also be called 20 resource blocks, and these 20 resource blocks can be numbered from 0 to 19.

[0097] It should be noted that the embodiment of the present application does not limit the number of resource blocks occupied by SSB.

[0098] 3. Perceived performance

[0099] The measurement parameters of perception performance may include but are not limited to: accuracy, or resolution, etc. Among them, accuracy can be used to describe the error between the perception result and the ideal real result. Taking distance perception as an example, the distance between the perception target and the perception device obtained through the perception signal is 6 meters, but the actual distance between the perception target and the perception device is 5 meters, then the perception error is 1 meter, that is, the accuracy is 1 meter. Resolution can be used to describe the minimum ability of perception to distinguish two different perception targets. Taking distance perception as an example, a distance resolution of 1 meter means that if the distance between the two perception targets is greater than or equal to 1 meter, the perception device can distinguish that there are two perception targets; if the distance between the two perception targets is less than 1 meter, the perception device cannot distinguish that there are two perception targets.

[0100] Improving perceptual performance is currently an important research topic. In light of this, embodiments of the present application provide a communication method and apparatus that enable broadcast channels to occupy more bandwidth, thereby improving perceptual performance. The method and apparatus described herein are based on the same technical concept. Since the method and apparatus solve similar problems, the implementation of the apparatus and method can be referenced in conjunction with each other, and any repetitions will not be repeated.

[0101] The following is an introduction to the technical terms involved in the embodiments of this application.

[0102] The first communication device can be used to receive synchronization signals and broadcast channels, and can be a network device or a component in the network device (such as a DU or RU, etc.), or can also be a terminal device or a component in the terminal device. For example, the first communication device can be the network device B shown in (2) of Figure 2, or a component in the network device B. For another example, the first communication device can be the terminal device A shown in (3) of Figure 2, or a component in the terminal device A.

[0103] The second communication device can be used to send synchronization signals and broadcast channels, and can be a network device or a component in the network device (such as a DU or RU, etc.), or can also be a terminal device or a component in the terminal device. For example, the second communication device can be the network device A shown in any of (1), (2), or (3) in Figure 2, or a component in the network device A. For another example, the second communication device can be a relay terminal device that receives synchronization signals and broadcast channels from the network device and sends the synchronization signals and broadcast channels to other terminal devices.

[0104] Among them, the description of the network device and the terminal device can refer to the relevant content shown in Figure 1, which will not be repeated here.

[0105] The synchronization signal and the broadcast channel can be used for synchronization between the first communication device and the second communication device. In embodiments of the present application, the synchronization signal and the broadcast channel can also be used for sensing. For example, the first communication device can receive the synchronization signal and the echo signal of the broadcast channel, and perform sensing processing based on the synchronization signal and the echo signal of the broadcast channel. For another example, the second communication device can perform sensing processing based on the synchronization signal and the broadcast channel. The synchronization signal can include a first signal and a second signal.

[0106] It should be noted that in the 5G mobile communication system, the synchronization signal and broadcast channel can be called SSB, the first signal can be called PSS, the second signal can be called SSS, and the broadcast channel can be called PBCH. In future mobile communication systems, the synchronization signal and broadcast channel can still be called SSB, or other names without limitation. Similarly, in future mobile communication systems, the first signal can still be called PSS, or other names without limitation. In future mobile communication systems, the second signal can still be called SSS, or other names without limitation. In future mobile communication systems, the first signal can still be called PBCH, or other names without limitation.

[0107] A time unit may be one or more symbols, one or more time slots, one or more mini-slots, one or more subframes, or one or more frames, etc. The embodiments of the present application do not limit the time domain granularity. Multiple time units may be continuous or discrete in time, without limitation.

[0108] Symbols may also be referred to as modulation symbols, symbol groups, modulation symbol sequences, modulation symbol streams, modulation symbol strings, or modulation symbol sets, without limitation. The present application does not limit the modulation scheme of symbols. For example, a symbol may be an OFDM symbol.

[0109] The frequency domain unit can be one or several subcarriers, or one or several carriers, or one or several subchannels, or one or several resource elements (RE), or one or several resource blocks (RB). The embodiment of the present application does not limit the frequency domain granularity.

[0110] A sequence may include one or more elements, each of which may be represented as a plural number. The sequence may also be referred to as a parameter, a factor, or a coding sequence, without limitation.

[0111] In the embodiments of the present application, the word "number" can be replaced by "serial number", "index", or "index number", etc., without limitation. The starting number in the embodiments of the present application can be 0 (i.e., numbering starts from 0), or 1, or other positive integers, without limitation. In addition, the "..." in "A, ..., B" in the numbering represents a continuous positive integer greater than A and less than B. For example, "0, ..., 4" represents "0, 1, 2, 3, 4".

[0112] Please refer to Figure 4, which is a flow chart of a communication method provided in an embodiment of the present application. As shown in Figure 4, the method may include the following contents.

[0113] S401: The second communication device determines a synchronization signal and a broadcast channel.

[0114] S401 is an optional step, indicated by a dotted line in FIG4 . S401 can also be expressed as: the second communication device generates a synchronization signal and a broadcast channel. Exemplarily, the second communication device determines the synchronization signal and the broadcast channel by one or more of the following: the second communication device determines the resources for transmitting the synchronization signal and the broadcast channel; or the second communication device performs resource mapping on the synchronization signal and the broadcast channel. The synchronization signal may include a first signal and a second signal. For details about the synchronization signal and the broadcast channel, please refer to the terminology explanation section and will not be elaborated on here.

[0115] In the embodiment of the present application, in the time domain, the synchronization signal and the broadcast channel may occupy N time units, where N is a positive integer. The first signal may occupy the first time unit of the N time units. The N time units may be consecutive or discontinuous, without limitation.

[0116] In an embodiment of the present application, in the frequency domain, the first signal and the second signal may occupy the same frequency domain unit; or, the number of frequency domain units occupied by the first signal and the second signal may be the same (for example, in the frequency domain, the number of frequency domain units occupied by the first signal and the second signal is the same, but the frequency domain units occupied by the first signal and the frequency domain units occupied by the second signal may be the same or different, and the following text takes the first signal and the second signal occupying the same frequency domain units in the frequency domain as an example). The number of frequency domain units occupied by the broadcast channel is greater than the number of frequency domain units occupied by the first signal in the frequency domain; or, the number of frequency domain units occupied by the broadcast channel in the frequency domain is greater than the number of frequency domain units occupied by the second signal in the frequency domain.

[0117] The embodiments of the present application provide two solutions for resource mapping of synchronization signals and broadcast channels. In other words, the embodiments of the present application provide two solutions for sending synchronization signals and broadcast channels. The two solutions are respectively recorded as Solution 1 and Solution 2. Solution 1, which can also be called a resource mapping solution, or a resource configuration solution, etc., can be understood as performing resource mapping on synchronization signals and broadcast channels according to the method provided in the embodiments of the present application, so that the broadcast channel can occupy more bandwidth, which is conducive to improving the perceived performance. Solution 2, which can also be called a resource mapping solution, or a resource configuration solution, etc., can be understood as performing resource mapping on synchronization signals and broadcast channels according to the current communication protocol, that is, the bandwidth occupied by the broadcast channel in Solution 2 is predefined, as shown in Figure 3. Optionally, the bandwidth occupied by the broadcast channel in Solution 1 is greater than the bandwidth occupied by the broadcast channel in Solution 2.

[0118] The resources occupied by the synchronization signal and broadcast channel in Solution 1 and Solution 2 are introduced below respectively.

[0119] 1. Solution 1

[0120] In this solution 1, the broadcast channel may occupy one time unit among N time units. The N time units may be two time units or three time units, without limitation.

[0121] In the time domain, the first signal, the second signal and the broadcast channel can all occupy one time unit. That is, the first signal, the second signal and the broadcast channel can all occupy one time unit in the time domain. The broadcast channel occupies one time unit in the time domain, which means that the broadcast channel can occupy more frequency domain units (for example, subcarriers) in the frequency domain, that is, the broadcast channel can occupy more bandwidth. The perception performance is related to the bandwidth occupied by the perception signal. Generally, the more bandwidth the perception signal occupies, the better the perception performance (for example, the more bandwidth the perception signal occupies, the greater the accuracy and / or resolution based on the perception signal). Therefore, when the synchronization signal and broadcast channel provided in the embodiment of the present application are used for perception, it is beneficial to improve the perception performance.

[0122] In one possible implementation, in the time domain, the synchronization signal and the broadcast channel may occupy three time units (i.e., the value of N is 3). The three time units may be three consecutive time units or three discontinuous time units, without limitation. For example, the synchronization signal and the broadcast channel occupy three time units, the first signal may occupy the first time unit of the three time units, the second signal may occupy the second time unit of the three time units, and the broadcast channel may occupy the third time unit of the three time units. For another example, the synchronization signal and the broadcast channel occupy three time units, the first signal may occupy the first time unit of the three time units, the second signal may occupy the third time unit of the three time units, and the broadcast channel may occupy the second time unit of the three time units.

[0123] In another possible implementation, in the time domain, the synchronization signal and the broadcast channel may occupy two time units (i.e., the value of N is 2). The two time units may be consecutive or discontinuous, without limitation. For example, if the synchronization signal and the broadcast channel occupy two time units, the first signal may occupy the first of the two time units, and the second signal and the broadcast channel may occupy the second of the two time units.

[0124] In the above two implementations, the synchronization signal and broadcast channel may occupy three or two time units in the time domain. For example, a time unit may be one OFDM symbol. Therefore, the synchronization signal and broadcast channel may occupy three or two OFDM symbols in the time domain. Compared to the four OFDM symbols occupied by the SSB, the synchronization signal and broadcast channel in the above two implementations occupy fewer OFDM symbols, thereby reducing the transmission delay of the synchronization signal and broadcast channel.

[0125] In the frequency domain, the first signal and the second signal occupy the same frequency domain unit. For example, the first signal and the second signal may both occupy X frequency domain units in the frequency domain, where X is a positive integer. When X is greater than 1, the X frequency domain units may be continuous or discontinuous. In the embodiment of the present application, the first signal and the second signal are described as an example in which both the first signal and the second signal occupy X continuous frequency domain units in the frequency domain.

[0126] In the frequency domain, the broadcast channel may occupy continuous frequency domain units, or the broadcast channel may occupy discontinuous frequency domain units. Moreover, the number of frequency domain units occupied by the broadcast channel is greater than the number of frequency domain units occupied by the first signal (or the second signal). For example, the broadcast channel may occupy Y frequency domain units in the frequency domain, where Y is a positive integer. Wherein, Y is greater than X. In one embodiment, when Y is greater than 1, the Y frequency domain units may be continuous Y frequency domain units, that is, the broadcast channel occupies continuous Y frequency domain units in the frequency domain. In another embodiment, when Y is greater than 1, the Y frequency domain units may be discontinuous Y frequency domain units, that is, the broadcast channel occupies discontinuous Y frequency domain units in the frequency domain. These two embodiments are introduced below.

[0127] Implementation method 1: The broadcast channel occupies Y consecutive frequency domain units in the frequency domain. For example, the first signal and the second signal both occupy X consecutive frequency domain units in the frequency domain, and the broadcast channel occupies Y consecutive frequency domain units in the frequency domain, where Y is greater than X. The starting number of the X frequency domain units can be recorded as K4, and accordingly, the numbers of the X frequency domain units can be expressed as: K4, K4+1, ..., K4+X-1, and the K4 can be an integer greater than or equal to 0. Optionally, the value of K4 can be 56, that is, the starting number of the X frequency domain units can be 56. The starting code of the Y consecutive frequency domain units can be recorded as y0, and accordingly, the numbers of the Y consecutive frequency domain units can be expressed as: y0, y0+1, ..., y0+Y-1, and the y0 can be an integer greater than or equal to 0. Optionally, the value of y0 can be 0, that is, the starting number of the Y consecutive frequency domain units can be 0. Optionally, the value of X may be 127, without limitation. Optionally, the value of Y may be 480, or the value of Y may be 576, without limitation.

[0128] In an example of the above-mentioned embodiment 1, in the time domain, the synchronization signal and the broadcast channel occupy three time units, the first signal occupies the first time unit of the three time units, the second signal occupies the second time unit of the three time units, and the broadcast channel occupies the third time unit of the three time units; in the frequency domain, the first signal and the second signal both occupy X consecutive frequency domain units, and the broadcast channel occupies Y consecutive frequency domain units, as shown in Figure 5.

[0129] For example, assuming that a time unit is an OFDM symbol, a frequency domain unit is a subcarrier, the synchronization signal and broadcast channel are SSB, the first signal is PSS, the second signal is SSS, and the broadcast channel is PBCH. Then, in the time domain, the SSB can occupy three consecutive OFDM symbols, the PSS occupies the first OFDM symbol of the three OFDM symbols, the SSS occupies the second OFDM symbol of the three OFDM symbols, and the PBCH occupies the third OFDM symbol of the three OFDM symbols; in the frequency domain, both the PSS and SSS occupy subcarriers numbered 56, 57, ..., 182, i.e., occupy 127 consecutive subcarriers, and the PBCH occupies subcarriers numbered 0, 1, ..., 479, i.e., occupy 480 consecutive subcarriers (or, the PBCH occupies subcarriers numbered 0, 1, ..., 575, i.e., occupies 576 consecutive subcarriers).

[0130] In another example combined with the above-mentioned embodiment 1, in the time domain, the synchronization signal and the broadcast channel occupy three time units, the first signal occupies the first time unit of the three time units, the second signal occupies the third time unit of the three time units, and the broadcast channel occupies the second time unit of the three time units; in the frequency domain, the first signal and the second signal both occupy X consecutive frequency domain units, and the broadcast channel occupies Y consecutive frequency domain units, as shown in Figure 6.

[0131] For example, assuming that a time unit is an OFDM symbol, a frequency domain unit is a subcarrier, the synchronization signal and broadcast channel are SSB, the first signal is PSS, the second signal is SSS, and the broadcast channel is PBCH. Then, in the time domain, the SSB can occupy three consecutive OFDM symbols, the PSS occupies the first OFDM symbol of the three OFDM symbols, the SSS occupies the third OFDM symbol of the three OFDM symbols, and the PBCH occupies the second OFDM symbol of the three OFDM symbols; in the frequency domain, both the PSS and SSS occupy subcarriers numbered 56, 57, ..., 182, i.e., occupy 127 consecutive subcarriers, and the PBCH occupies subcarriers numbered 0, 1, ..., 479, i.e., occupy 480 consecutive subcarriers (or, the PBCH occupies subcarriers numbered 0, 1, ..., 575, i.e., occupies 576 consecutive subcarriers).

[0132] Implementation method 2: The broadcast channel occupies Y discontinuous frequency domain units in the frequency domain. For example, the first signal and the second signal both occupy X continuous frequency domain units in the frequency domain. The broadcast channel may occupy K1 continuous frequency domain units and K2 continuous frequency domain units in the frequency domain. The K1 frequency domain units and K2 frequency domain units are discontinuous, K1 and K2 are both positive integers, and (K1+K2) is greater than X. Wherein, K1+K2=Y. K1 and K2 may be equal, or may be equal, without limitation. Optionally, K1 may be greater than X.

[0133] The discontinuity of K1 frequency domain units and K2 frequency domain units can be understood as follows: the frequency of the first frequency domain unit with the largest frequency among the K1 frequency domain units is less than the frequency of the second frequency domain unit with the smallest frequency among the K2 frequency domain units, and the difference between the frequency of the first frequency domain unit and the frequency of the second frequency domain unit is M times the frequency domain unit interval; or, it can also be understood as follows: the end number of the K1 frequency domain units is less than the start number of the K2 frequency domain units, and the difference between the end number of the K1 frequency domain units and the start number of the K2 frequency domain units is greater than 1. M is a positive integer. The frequency domain unit interval can be understood as the frequency difference between two adjacent frequency domain units. For example, a frequency domain unit is a subcarrier, and the frequency domain unit interval can be a subcarrier interval. For another example, a frequency domain unit is a resource unit, and the frequency domain unit interval can be the frequency difference between two adjacent resource units.

[0134] Among them, the starting number of X frequency domain units can be recorded as K3, and accordingly, the numbering of the X frequency domain units can be expressed as: K3, K3+1, ..., K3+X-1, and K3 can be an integer greater than or equal to 0. The starting number of K1 frequency domain units can be recorded as k0, and accordingly, the numbering of the K1 frequency domain units can be expressed as: k0, k0+1, ..., k0+K1-1. The starting number of K2 frequency domain units can be recorded as k1, and accordingly, the numbering of the K2 frequency domain units can be expressed as: k1, k1+1, ..., k1+K2-1. Among them, [k1-(k0+K1-1)] is greater than 1. Optionally, the value of X can be 127, without limitation. Optionally, the values ​​of K1 and K2 can both be 240, or the values ​​of K1 and K2 can both be 288, without limitation.

[0135] In an optional embodiment, the starting number of the X frequency domain units may be greater than the ending number of the K1 frequency domain units, that is, K3 is greater than (k0+K1-1), or K3 is greater than or equal to (k0+K1). In other words, the frequency of the third frequency domain unit with the smallest frequency among the X frequency domain units is greater than the frequency of the first frequency domain unit with the largest frequency among the K1 frequency domain units. For example, if k0 is 0 (that is, the starting number of the K1 frequency domain units is 0 and the ending number of the K1 frequency domain units is K1-1), then K3 may be an integer greater than or equal to K1.

[0136] For example, assuming that the value of k0 is 0, the value of K1 is 240, the value of X is 127, and the value of K3 is 240; then the numbering of K1 frequency domain units can be expressed as: 0, 1, ..., 239, and the numbering of X frequency domain units can be expressed as: 240, 241, ..., 366.

[0137] As another example, assuming that the value of k0 is 0, the value of K1 is 288, the value of X is 127, and the value of K3 is 298; then the numbering of K1 frequency domain units can be expressed as: 0, 1, ..., 287, and the numbering of X frequency domain units can be expressed as: 298, 299, ..., 424.

[0138] In an optional implementation, the ending number of the X frequency domain units may be less than the starting number of the K2 frequency domain units, that is, (K3+X-1) is greater than k1, or k1 is less than or equal to (K3+X). In other words, the frequency of the fourth frequency domain unit with the highest frequency among the X frequency domain units is less than the frequency of the second frequency domain unit with the lowest frequency among the K2 frequency domain units.

[0139] For example, assuming that the X frequency domain units are numbered as 240, 241, ..., 366, the value of K2 is 240, and the value of k1 is 367, then the numbering of K2 frequency domain units can be expressed as 367, 368, ..., 606.

[0140] As another example, assuming that the X frequency domain units are numbered as 298, 299, ..., 424, the value of K2 is 288, and the value of k1 is 433, then the numbering of K2 frequency domain units can be expressed as 433, 434, ..., 720.

[0141] Through the above two implementations, the frequency domain unit occupied by the first signal (or second signal) does not overlap with the frequency domain unit occupied by the broadcast channel, which can reduce signal interference between the first signal (or second signal) and the broadcast channel.

[0142] In conjunction with an example of the above-mentioned embodiment 2, in the time domain, the synchronization signal and the broadcast channel can occupy three time units, the first signal occupies the first time unit of the three time units, the second signal occupies the second time unit of the three time units, and the broadcast channel occupies the third time unit of the three time units; in the frequency domain, the first signal and the second signal both occupy X consecutive frequency domain units, the broadcast channel occupies K1 consecutive frequency domain units and K2 consecutive frequency domain units, the frequency of the first frequency domain unit with the largest frequency among the K1 frequency domain units is less than the frequency of the second frequency domain unit with the smallest frequency among the K2 frequency domain units, and the difference between the frequency of the first frequency domain unit and the frequency of the second frequency domain unit is M times the frequency domain unit interval, as shown in Figure 7. Figure 7 is shown as an example where K3 is greater than (k0+K1-1) and k1 is greater than (K3+X-1).

[0143] For example, assuming that a time unit is an OFDM symbol, a frequency domain unit is a subcarrier, the synchronization signal and broadcast channel are SSB, the first signal is PSS, the second signal is SSS, and the broadcast channel is PBCH. Then, in the time domain, the SSB can occupy three consecutive OFDM symbols, the PSS occupies the first OFDM symbol of the three OFDM symbols, the SSS occupies the second OFDM symbol of the three OFDM symbols, and the PBCH occupies the third OFDM symbol of the three OFDM symbols; in the frequency domain, the PSS and SSS both occupy subcarriers numbered 240, 241, ..., 366, that is, occupying 127 consecutive subcarriers, and the PBCH occupies subcarriers numbered 0, 1, ..., 239, 367, 368, ..., 606, that is, occupying 480 subcarriers.

[0144] In another example combined with the above-mentioned embodiment 2, in the time domain, the synchronization signal and the broadcast channel can occupy three time units, the first signal occupies the first time unit of the three time units, the second signal occupies the third time unit of the three time units, and the broadcast channel occupies the second time unit of the three time units; in the frequency domain, the first signal and the second signal both occupy consecutive X frequency domain units, the broadcast channel occupies consecutive K1 frequency domain units and K2 frequency domain units, the frequency of the first frequency domain unit with the largest frequency among the K1 frequency domain units is less than the frequency of the second frequency domain unit with the smallest frequency among the K2 frequency domain units, and the difference between the frequency of the first frequency domain unit and the frequency of the second frequency domain unit is M times the frequency domain unit interval, as shown in Figure 8. Figure 8 is shown as an example where K3 is greater than (k0+K1-1) and k1 is greater than (K3+X-1).

[0145] For example, assuming that a time unit is an OFDM symbol, a frequency domain unit is a subcarrier, the synchronization signal and broadcast channel are SSB, the first signal is PSS, the second signal is SSS, and the broadcast channel is PBCH. Then, in the time domain, the SSB can occupy three consecutive OFDM symbols, the PSS occupies the first OFDM symbol of the three OFDM symbols, the SSS occupies the third OFDM symbol of the three OFDM symbols, and the PBCH occupies the second OFDM symbol of the three OFDM symbols; in the frequency domain, the PSS and SSS both occupy subcarriers numbered 298, 299, ..., 424, that is, occupying 127 consecutive subcarriers, and the PBCH occupies subcarriers numbered 0, 1, ..., 287, 433, 434, ..., 720, that is, occupying 576 subcarriers.

[0146] In another example combined with the above-mentioned embodiment 2, in the time domain, the synchronization signal and the broadcast channel can occupy two time units, the first signal occupies the first time unit of the two time units, and the second signal and the broadcast channel both occupy the second time unit of the two time units; in the frequency domain, the first signal and the second signal both occupy X consecutive frequency domain units, the broadcast channel occupies K1 consecutive frequency domain units and K2 consecutive frequency domain units, the frequency of the first frequency domain unit with the largest frequency among the K1 frequency domain units is less than the frequency of the second frequency domain unit with the smallest frequency among the K2 frequency domain units, and the difference between the frequency of the first frequency domain unit and the frequency of the second frequency domain unit is M times the frequency domain unit interval, as shown in Figure 9. Figure 9 is shown as an example where K3 is greater than (k0+K1-1) and k1 is greater than (K3+X-1).

[0147] For example, assuming that a time unit is an OFDM symbol, a frequency domain unit is a subcarrier, the synchronization signal and broadcast channel are SSB, the first signal is PSS, the second signal is SSS, and the broadcast channel is PBCH. Then, in the time domain, the SSB can occupy two consecutive OFDM symbols, the PSS occupies the first of the two OFDM symbols, and the SSS and PBCH occupy the second of the two OFDM symbols. In the frequency domain, the PSS and SSS both occupy subcarriers numbered 298, 299, ..., 424, that is, occupying 127 consecutive subcarriers, and the PBCH occupies subcarriers numbered 0, 1, ..., 287, 433, 434, ..., 720, that is, occupying 576 subcarriers.

[0148] Through the above-mentioned implementation modes 1 and 2, the broadcast channel can occupy continuous frequency domain units or discontinuous frequency domain units, and the implementation mode is flexible.

[0149] It is understandable that the broadcast channel occupies discontinuous frequency domain units, which can be two segments of consecutively numbered frequency domain units, or can also be three or more segments of consecutively numbered frequency domain units, wherein any two segments of consecutively numbered frequency domain units are discontinuous. For example, the broadcast channel occupies 480 subcarriers, and the numbers of these 480 subcarriers can be expressed as: 0, 1, ..., 55, 183, 184, ..., 394, 413, 414, ..., 624. For another example, the broadcast channel occupies 576 subcarriers, and the numbers of these 576 subcarriers can be expressed as: 0, 1, ..., 55, 183, 184, ..., 394, 413, 414, ..., 624, 630, 631, ..., 725.

[0150] 2. Solution 2

[0151] In this solution 2, the broadcast channel can occupy at least two of the N time units. The N time units can be four time units, without limitation. For example, in the time domain, the first signal occupies the first of the N time units, the second signal occupies the third of the N time units, and the broadcast channel occupies the second, third, and fourth of the N time units. For the specific implementation of this solution 2, please refer to the relevant content of the embodiment shown in Figure 3, but the present invention is not limited thereto.

[0152] In Solution 1 above, the broadcast channel occupies one time unit in the time domain, allowing it to occupy more bandwidth, which is beneficial for improving perceived performance. In another possible implementation, in Solution 1, the broadcast channel can also occupy multiple time units in the time domain, and the bandwidth occupied by the broadcast channel can also be greater than the bandwidth occupied by the broadcast channel in Solution 2, which is beneficial for improving perceived performance. For example, the number of frequency domain units occupied by the broadcast channel can be greater than 240.

[0153] For example, a time unit is an OFDM symbol, a frequency domain unit is a subcarrier, the synchronization signal and broadcast channel are SSB, the first signal is PSS, the second signal is SSS, and the broadcast channel is PBCH. In the time domain, SSB can occupy four OFDM symbols, PSS occupies the first OFDM symbol of the four OFDM symbols, SSS occupies the second OFDM symbol of the four OFDM symbols, and PBCH occupies the third and fourth OFDM symbols of the four OFDM symbols; in the frequency domain, PSS and SSS can both occupy subcarriers numbered 56, 57, ..., 182 (i.e., occupying 127 consecutive subcarriers), and PBCH occupies subcarriers numbered 0, 1, ..., 287 (i.e., occupying 288 consecutive subcarriers), as shown in (1) in Figure 10. Alternatively, in the time domain, SSB can occupy four OFDM symbols, PSS occupies the first OFDM symbol of the four OFDM symbols, SSS occupies the third OFDM symbol of the four OFDM symbols, and PBCH occupies the second OFDM symbol and the fourth OFDM symbol of the four OFDM symbols; in the frequency domain, PSS and SSS can both occupy subcarriers numbered 56, 57, ..., 182 (i.e., occupying 127 consecutive subcarriers), and PBCH occupies subcarriers numbered 0, 1, ..., 287 (i.e., occupying 288 consecutive subcarriers), as shown in (2) in Figure 10. Although the PBCH shown in Figure 10 occupies two OFDM symbols, the number of subcarriers occupied by the PBCH shown in Figure 10 is greater than the number of subcarriers occupied by the PBCH shown in Figure 3, and can occupy more bandwidth, which is beneficial to improving the perception performance.

[0154] In the embodiment of the present application, the second communication device may perform resource mapping on the synchronization signal and the broadcast channel according to the above-mentioned solution 1 or solution 2, and send the synchronization signal and the broadcast channel, that is, execute the content of S402. In other words, the second communication device may send the synchronization signal and the broadcast channel according to the above-mentioned solution 1 or solution 2, that is, execute the content of S402.

[0155] In one possible implementation, the sequence of the first signal may be different under different schemes; or the sequence of the second signal may be different under different schemes; or the sequence of the first signal may be different and the sequence of the second signal may also be different under different schemes. For example, if the second communication device sends the synchronization signal and the broadcast channel according to the above-mentioned scheme 1, the sequence of the first signal may be the first sequence; if the second communication device sends the synchronization signal and the broadcast channel according to the above-mentioned scheme 2, the sequence of the first signal may be the third sequence, wherein the first sequence is different from the third sequence. For another example, if the second communication device sends the synchronization signal and the broadcast channel according to the above-mentioned scheme 1, the sequence of the second signal may be the second sequence; if the second communication device sends the synchronization signal and the broadcast channel according to the above-mentioned scheme 2, the sequence of the second signal may be the fourth sequence, wherein the second sequence is different from the fourth sequence. The first sequence, the second sequence, the third sequence and the fourth sequence may be predefined or preconfigured without limitation. For a description of the sequence, please refer to the aforementioned term explanation section and will not be repeated here.

[0156] S402: The second communication device sends a synchronization signal and a broadcast channel.

[0157] Accordingly, the first communication device receives the synchronization signal and the broadcast channel.

[0158] Among them, the first communication device receives the synchronization signal and the broadcast channel, which can be understood as: the first communication device receives the synchronization signal, and receives the broadcast channel based on the synchronization signal; or it can also be understood as: the first communication device receives the synchronization signal and the broadcast channel, and determines (or decodes, or analyzes) the broadcast channel based on the synchronization signal.

[0159] In one embodiment, if the first condition is met, the first communication device may receive the synchronization signal and the broadcast channel according to the above-described solution 1. In other words, if the first condition is met, the broadcast channel occupies one of N time units, and accordingly, the first communication device may determine (or receive, or decode, or parse, or detect) the broadcast channel from one of the N time units. In other words, if the first condition is met, the first communication device may determine the resource mapping scheme (or resource configuration scheme) for the broadcast channel to be the above-described solution 1. Exemplarily, the first condition may be: the second signal occupies the second time unit of N time units; or, the first condition may also be: the sequence of the first signal is the first sequence; or, the first condition may also be: the sequence of the second signal is the second sequence; or, the first condition may also be: the second signal occupies the second time unit of N time units, and the sequence of the first signal is the first sequence; or, the first condition may also be: the second signal occupies the second time unit of N time units, and the sequence of the second signal is the second sequence; or, the first condition may also be: the sequence of the first signal is the first sequence, and the sequence of the second signal is the second sequence; or, the first condition may also be: the second signal occupies the second time unit of N time units, the sequence of the first signal is the first sequence, and the sequence of the second signal is the second sequence.

[0160] In another embodiment, when the second condition is met, the first communication device may receive the synchronization signal and the broadcast channel according to the above-mentioned scheme 2. In other words, when the second condition is met, the broadcast channel occupies at least two time units out of N time units, and accordingly, the first communication device may determine (or receive, or decode, or parse, or detect) the broadcast channel from at least two time units out of the N time units. In other words, when the second condition is met, the first communication device may determine that the resource mapping scheme (or resource configuration scheme) of the broadcast channel is the above-mentioned scheme 2. Exemplarily, the second condition may be: the sequence of the first signal is the third sequence; or, the second condition may also be: the sequence of the second signal is the fourth sequence; or, the second condition may also be: the sequence of the first signal is the third sequence, and the sequence of the second signal is the fourth sequence.

[0161] As an example, assume that a time unit is an OFDM symbol, a frequency domain unit is a subcarrier, the synchronization signal and broadcast channel are SSB, the first signal is PSS, the second signal is SSS, and the broadcast channel is PBCH. The first communication device can use the first sequence and the third sequence to attempt to detect the PSS respectively. If the first communication device detects that the sequence of the PSS is the first sequence, the first communication device can determine that the resource mapping scheme of the PBCH is the above-mentioned scheme 1. For example, the first communication device can attempt to detect the PBCH on one OFDM symbol among N OFDM symbols. If the first communication device detects that the sequence of the PSS is the third sequence, the first communication device can use the second sequence and the fourth sequence to attempt to detect the SSS respectively. If the first communication device detects that the sequence of the SSS is the second sequence, the first communication device can determine that the resource mapping scheme of the PBCH is the above-mentioned scheme 1. For example, the first communication device can attempt to detect the PBCH on one OFDM symbol among N OFDM symbols. If the first communication device detects that the SSS sequence is the fourth sequence, the first communication device may determine that the resource mapping scheme for the PBCH is the above-mentioned scheme 2. For example, the first communication device may attempt to detect the PBCH on the second OFDM symbol, the third OFDM symbol, and the fourth OFDM symbol among the N OFDM symbols. It should be noted that the embodiments of the present application do not limit the order in which the sequence detection of the PSS and SSS is performed.

[0162] As another example, assume that a time unit is an OFDM symbol, a frequency domain unit is a subcarrier, the synchronization signal and broadcast channel are SSB, the first signal is PSS, the second signal is SSS, and the broadcast channel is PBCH. After the first communication device receives the PSS on the first OFDM symbol among N OFDM symbols, it can attempt to detect the SSS on the second OFDM symbol and the third OFDM symbol among the N OFDM symbols, respectively. If the first communication device detects the SSS on the second OFDM symbol among the N OFDM symbols, the first communication device can determine that the resource mapping scheme of the PBCH is the above-mentioned scheme 1. For example, the first communication device can attempt to detect the PBCH on one OFDM symbol among the N OFDM symbols.

[0163] After receiving the synchronization signal and the broadcast channel, the first communication device can synchronize with the second communication device based on the synchronization signal and the broadcast channel, but is not limited to this. In the embodiment of the present application, the synchronization signal and the broadcast channel can be used for perception. For example, the first communication device can also perform perception processing based on the synchronization signal and the broadcast channel, which is not shown in Figure 4. For another example, the second communication device can also receive the synchronization signal and the echo signal of the broadcast channel, and perform perception processing based on the synchronization signal and the echo signal of the broadcast channel, which is not shown in Figure 4.

[0164] In the above embodiment of the present application, when the broadcast channel occupies one time unit in the time domain, the broadcast channel can occupy more frequency domain units in the frequency domain, that is, the broadcast channel can occupy more bandwidth in the frequency domain. The perception performance is related to the bandwidth occupied by the perception signal. Generally, the more bandwidth the perception signal occupies, the better the perception performance based on the perception signal. Therefore, the broadcast channel provided in the embodiment of the present application is conducive to improving the perception performance when used for perception. Furthermore, the embodiment of the present application can be adapted to the scenario where the broadcast channel occupies only one time unit in the time domain, and can also be adapted to the scenario where the broadcast channel occupies at least two time units in the time domain, and has good compatibility.

[0165] In the embodiments provided in the present application, the methods provided in the embodiments of the present application are introduced from the perspective of the interaction between the first communication device and the second communication device. Among them, the steps performed by the communication device (for example, the first communication device or the second communication device) can be implemented by different functional entities that constitute the communication device. The communication device (for example, the first communication device or the second communication device) may include a hardware structure and / or a software module to implement the above-mentioned functions in the form of a hardware structure, a software module, or a hardware structure plus a software module. Whether a function of the above-mentioned functions is performed in the form of a hardware structure, a software module, or a hardware structure plus a software module depends on the specific application and design constraints of the technical solution.

[0166] The following describes the communication device used to implement the above method in the embodiment of the present application with reference to the accompanying drawings. Therefore, the above contents can be used in subsequent embodiments, and repeated contents will not be repeated.

[0167] Fig. 11 exemplarily shows a schematic structural diagram of a communication device 1100. The communication device 1100 can implement the functions or steps implemented by the first communication device or the second communication device in the above-mentioned various method embodiments.

[0168] Exemplarily, when the communication device 1100 is used to implement the functions or steps implemented by the first communication device in the above-mentioned method embodiments, the communication device 1100 can be a network device or a component in a network device (such as DU and / or RU, etc.), or it can also be a terminal device or a component in a terminal device.

[0169] Exemplarily, when the communication device 1100 is used to implement the functions or steps implemented by the second communication device in the above-mentioned method embodiments, the communication device 1100 can be a network device or a component in a network device (such as DU and / or RU, etc.), or it can also be a terminal device or a component in a terminal device.

[0170] In one embodiment, the communication device 1100 may include a processing module 1101 and a transceiver module 1102. The processing module 1101 may be used to perform data processing, such as executing the various method embodiments described above. The processing module 1101 may also be referred to as a processing unit. The transceiver module 1102 may be used to implement corresponding communication functions, such as receiving or sending relevant data, information, or messages. The transceiver module 1102 may also be referred to as a communication interface, a communication module, or a transceiver unit.

[0171] It should be noted that the communication device 1100 may include the processing module 1101 but not the transceiver module 1102. Alternatively, the communication device 1100 may include the transceiver module 1102 but not the processing module 1101. The specific implementation depends on whether the above solution executed by the communication device 1100 includes both processing and transceiver operations.

[0172] Optionally, the communication device 1100 may further include a storage module, which is not shown in Figure 11. The storage module may be used to store instructions and / or data, and the processing module 1101 may read the instructions and / or data in the storage module to enable the communication device 1100 to implement the aforementioned method embodiment.

[0173] Optionally, the transceiver module 1102 may include a sending module and a receiving module. The sending module is used to perform the sending operation in the above method embodiment. The receiving module is used to perform the receiving operation in the above method embodiment.

[0174] It should be noted that the communication device 1100 may include a sending module but not a receiving module. Alternatively, the communication device 1100 may include a receiving module but not a sending module. The specific implementation depends on whether the above solution executed by the communication device 1100 includes a sending action and a receiving action.

[0175] Optionally, the communication device 1100 is a chip system, the transceiver unit may be an input and output interface of a chip (eg, a baseband chip), and the processing unit may be a processor of the chip system.

[0176] In a first implementation, the communication device 1100 may execute the following: a transceiver module 1102 configured to receive a synchronization signal and a broadcast channel. Alternatively, the transceiver module 1102 may be configured to receive a synchronization signal and a broadcast channel; and a processing module 1101 may be configured to decode the broadcast channel based on the synchronization signal. The synchronization signal and the broadcast channel occupy N time units, the synchronization signal includes a first signal and a second signal, the first signal occupies the first time unit of the N time units, and N is a positive integer. If a first condition is met, the broadcast channel occupies one time unit of the N time units. If a second condition is met, the broadcast channel occupies at least two time units of the N time units. The first condition may include one or more of the following: the second signal occupies the second time unit of the N time units, the sequence of the first signal is the first sequence, or the sequence of the second signal is the second sequence. The second condition may include one or more of the following: the sequence of the first signal is the third sequence, or the sequence of the second signal is the fourth sequence; wherein the first sequence is different from the third sequence, and the second sequence is different from the fourth sequence.

[0177] Optionally, the synchronization signal and the broadcast channel may be used for sensing. For example, the processing module 1101 is further configured to perform sensing processing based on the synchronization signal and the broadcast channel.

[0178] Optionally, a time unit may be the second time unit among N time units, and the second signal may occupy the second time unit or the third time unit among the N time units; or, a time unit may be the third time unit among N time units, and the second signal may occupy the second time unit among the N time units.

[0179] Optionally, the first signal and the second signal occupy the same frequency domain unit in the frequency domain, and the number of frequency domain units occupied by the broadcast channel in the frequency domain is greater than the number of frequency domain units occupied by the first signal in the frequency domain.

[0180] Optionally, the first signal and the second signal each occupy X consecutive frequency domain units in the frequency domain, and the broadcast channel occupies Y consecutive frequency domain units in the frequency domain, where X and Y are both positive integers. Optionally, the value of X can be 127, without limitation. Optionally, the value of Y can be 480, or the value of Y can also be 576, without limitation.

[0181] Alternatively, the first signal and the second signal both occupy X consecutive frequency domain units in the frequency domain, and the broadcast channel occupies K1 consecutive frequency domain units and K2 consecutive frequency domain units in the frequency domain, wherein the frequency of the first frequency domain unit with the largest frequency among the K1 frequency domain units is less than the frequency of the second frequency domain unit with the smallest frequency among the K2 frequency domain units, and the difference between the frequency of the first frequency domain unit and the frequency of the second frequency domain unit is M times the frequency domain unit interval, X, K1 and K2 are all positive integers, and M is a positive integer. Optionally, the value of X can be 127. Optionally, the values ​​of K1 and K2 can both be 240, or the values ​​of K1 and K2 can both be 288, without limitation. Optionally, K1 can be greater than X.

[0182] Optionally, the end number of K1 frequency domain units is (K1-1), the starting number of X frequency domain units is K3, the starting number of K2 frequency domain units is greater than or equal to (X+K3), and K3 is an integer greater than or equal to K1.

[0183] In a second implementation, the communication device 1100 may execute the following: a transceiver module 1102 configured to send a synchronization signal and a broadcast channel. Alternatively, the processing module 1101 may be configured to determine a synchronization signal and a broadcast channel; and the transceiver module 1102 may be configured to send a synchronization signal and a broadcast channel. The synchronization signal and the broadcast channel occupy N time units, the synchronization signal includes a first signal and a second signal, the first signal occupies the first time unit of the N time units, and N is a positive integer. If a first condition is met, the broadcast channel occupies one time unit of the N time units. If a second condition is met, the broadcast channel occupies at least two time units of the N time units. The first condition includes one or more of the following: the second signal occupies the second time unit of the N time units, the sequence of the first signal is the first sequence, or the sequence of the second signal is the second sequence. The second condition includes one or more of the following: the sequence of the first signal is the third sequence, or the sequence of the second signal is the fourth sequence. The first sequence is different from the third sequence, and the second sequence is different from the fourth sequence.

[0184] Optionally, the synchronization signal and the broadcast channel can be used for sensing. For example, the transceiver module 1102 is further configured to receive the synchronization signal and the echo signal of the broadcast channel; and the processing module 1101 is further configured to perform sensing processing based on the synchronization signal and the echo signal of the broadcast channel.

[0185] Optionally, a time unit may be the second time unit among N time units, and the second signal may occupy the second time unit or the third time unit among the N time units; or, a time unit may be the third time unit among N time units, and the second signal may occupy the second time unit among the N time units.

[0186] Optionally, the first signal and the second signal occupy the same frequency domain unit in the frequency domain, and the number of frequency domain units occupied by the broadcast channel in the frequency domain is greater than the number of frequency domain units occupied by the first signal in the frequency domain.

[0187] Optionally, the first signal and the second signal each occupy X consecutive frequency domain units in the frequency domain, and the broadcast channel occupies Y consecutive frequency domain units in the frequency domain, where X and Y are both positive integers. Optionally, the value of X can be 127, without limitation. Optionally, the value of Y can be 480, or the value of Y can also be 576, without limitation.

[0188] Alternatively, the first signal and the second signal both occupy X consecutive frequency domain units in the frequency domain, and the broadcast channel occupies K1 consecutive frequency domain units and K2 consecutive frequency domain units in the frequency domain, wherein the frequency of the first frequency domain unit with the largest frequency among the K1 frequency domain units is less than the frequency of the second frequency domain unit with the smallest frequency among the K2 frequency domain units, and the difference between the frequency of the first frequency domain unit and the frequency of the second frequency domain unit is M times the frequency domain unit interval, X, K1 and K2 are all positive integers, and M is a positive integer. Optionally, the value of X can be 127. Optionally, the values ​​of K1 and K2 can both be 240, or the values ​​of K1 and K2 can both be 288, without limitation. Optionally, K1 can be greater than X.

[0189] Optionally, the end number of K1 frequency domain units is (K1-1), the starting number of X frequency domain units is K3, the starting number of K2 frequency domain units is greater than or equal to (X+K3), and K3 is an integer greater than or equal to K1.

[0190] It should be understood that a more detailed description of how each module performs the corresponding process can be directly obtained by referring to the relevant descriptions in the above-mentioned method embodiments. For the sake of brevity, it is not repeated here.

[0191] The processing module 1101 in the above embodiment can be implemented by at least one processor or processor-related circuits. The transceiver module 1102 can be implemented by a transceiver or transceiver-related circuits. The storage module can be implemented by at least one memory.

[0192] As shown in Figure 12, an embodiment of the present application provides a schematic structural diagram of a communication device 1200. The communication device 1200 may include a processor 1220 for implementing or supporting the communication device 1200 in implementing the functions of the first communication device or the second communication device in any method embodiment of the present application. For details, please refer to the detailed description of the aforementioned method embodiment, which is not repeated here. For example, the processor 1220 is used to read and execute program instructions through a communication interface so that the communication device 1200 implements the corresponding method. The processor 1220 may include one or more processors without limitation.

[0193] It should be noted that the functional modules mentioned above can be implemented by hardware or by a combination of hardware and software, without limitation. Also, when the communication device 1200 includes only the processor 1220, the communication device 1200 can be a chip or a chip system.

[0194] For example, the communication device 1200 may be a chip system, wherein the chip system may be composed of a chip, or may include a chip and other discrete components, without limitation.

[0195] Optionally, the communication device 1200 may further include a memory 1230 for storing program instructions and / or data. The memory 1230 is coupled to the processor 1220. Coupling can be understood as an indirect coupling or communication connection between devices, units, or modules, which can be electrical, mechanical, or other forms, for information exchange between the devices, units, or modules. The processor 1220 may operate in conjunction with the memory 1230. The processor 1220 and the memory 1230 may be integrated or separately provided.

[0196] Furthermore, the processor 1220 is configured to execute program instructions stored in the memory 1230 so that the communication device 1200 implements a corresponding method.

[0197] One or more memories in the memory 1230 may be included in the processor, or the memory 1230 may exist independently, such as an off-chip memory, and be connected to the processor 1220 via a communication bus (represented by a thick line 1240 in FIG. 12 ). The memory 1230 and the processor 1220 may also be integrated together.

[0198] Optionally, the communication device 1200 further includes a communication interface 1210 (indicated by a dotted line in FIG. 12 ) for communicating with other devices via a transmission medium, thereby enabling the device in the communication device 1200 to communicate with the other device. For example, when the communication device is a first communication device, the other device may be a second communication device, etc. The processor 1220 may use the communication interface 1210 to send and receive data. For example, the processor 1220 may be configured to control the communication interface 1210 to receive and / or send signals.

[0199] The communication interface 1210 may be a transceiver. In hardware implementation, the transceiver may be used to implement the functions of the transceiver module 1102 . The transceiver is integrated into the communication device 1200 to form the communication interface 1210 .

[0200] It should be pointed out that the communication interface 1210 can have a sending function and a receiving function, and can realize the reception and sending of signals; or it can have a sending function but not a receiving function, and is used to realize the sending of signals; or it can have a receiving function but not a sending function, and is used to realize the reception of signals.

[0201] It should be noted that the specific connection medium between the communication interface 1210, processor 1220, and memory 1230 is not limited in the embodiments of the present application. In FIG12 , the memory 1230, processor 1220, and communication interface 1210 are connected via a communication bus 1240. The connection methods between other components are merely schematic and not limiting. The communication bus 1240 can be divided into an address bus, a data bus, a control bus, etc. For ease of illustration, FIG12 shows only one thick line, but this does not mean that there is only one communication bus or only one type of communication bus.

[0202] In the embodiments of the present application, the processor 1220 may be a general-purpose processor, a digital signal processor, an application-specific integrated circuit, a field-programmable gate array or other programmable logic device, a discrete gate or transistor logic device, or a discrete hardware component. The general-purpose processor may be a microprocessor or any conventional processor. The methods disclosed in conjunction with the embodiments of the present application may be executed by hardware in the processor, or by a combination of hardware and software in the processor.

[0203] In the embodiment of the present application, the memory 1230 may be a non-volatile memory, such as a hard disk drive (HDD) or a solid-state drive (SSD), or a volatile memory, such as a random-access memory (RAM). The memory may also be any other medium for carrying or storing program code in the form of instructions or data structures and accessible by a computer; or a circuit or any other device capable of performing a storage function, for storing program instructions and / or data.

[0204] In a first possible implementation manner, the communication device 1200 may be a first communication device, configured to implement the relevant methods corresponding to the first communication device in the above embodiments. For specific functions, please refer to the descriptions in the above embodiments.

[0205] Illustratively, the relevant methods corresponding to the first communication device in each of the above embodiments include: receiving a synchronization signal and a broadcast channel; or receiving a synchronization signal and a broadcast channel, and decoding the broadcast channel according to the synchronization signal. The synchronization signal and the broadcast channel occupy N time units, the synchronization signal includes a first signal and a second signal, the first signal occupies the first time unit of the N time units, and N is a positive integer; if a first condition is met, the broadcast channel occupies one time unit of the N time units; if a second condition is met, the broadcast channel occupies at least two time units of the N time units; the first condition includes one or more of the following: the second signal occupies the second time unit of the N time units, the sequence of the first signal is the first sequence, or the sequence of the second signal is the second sequence; the second condition includes one or more of the following: the sequence of the first signal is the third sequence, or the sequence of the second signal is the fourth sequence; and the first sequence is different from the third sequence, and the second sequence is different from the fourth sequence.

[0206] In a second possible implementation, the communication device 1200 may be a second communication device, configured to implement the relevant methods corresponding to the second communication device in the above embodiments. For specific functions, please refer to the descriptions in the above embodiments.

[0207] Illustratively, the relevant methods corresponding to the second communication device in each of the above embodiments include: sending a synchronization signal and a broadcast channel; or, determining a synchronization signal and a broadcast channel, and sending the synchronization signal and the broadcast channel. The synchronization signal and the broadcast channel occupy N time units, the synchronization signal includes a first signal and a second signal, the first signal occupies the first time unit of the N time units, and N is a positive integer; if a first condition is met, the broadcast channel occupies one time unit of the N time units; if a second condition is met, the broadcast channel occupies at least two time units of the N time units; the first condition includes one or more of the following: the second signal occupies the second time unit of the N time units, the sequence of the first signal is the first sequence, or the sequence of the second signal is the second sequence; the second condition includes one or more of the following: the sequence of the first signal is the third sequence, or the sequence of the second signal is the fourth sequence; and the first sequence is different from the third sequence, and the second sequence is different from the fourth sequence.

[0208] Based on the same concept, referring to FIG13 , an embodiment of the present application also provides another communication device 1300, including: an input / output interface 1310 and a logic circuit 1320; the input / output interface 1310 is used to receive code instructions and transmit them to the logic circuit 1320; the logic circuit 1320 is used to run code instructions to execute the method executed by the first communication device or the second communication device in any of the above embodiments.

[0209] In a first implementation, the communication device 1300 can be applied to a first communication device and execute the method executed by the first communication device, specifically, the method executed by the first communication device in the aforementioned method embodiment. For example, the communication device 1300 can receive a synchronization signal and a broadcast channel; or the communication device 1300 can receive a synchronization signal and a broadcast channel, and decode the broadcast channel based on the synchronization signal. The synchronization signal and the broadcast channel occupy N time units, the synchronization signal includes a first signal and a second signal, the first signal occupies the first time unit of the N time units, and N is a positive integer; if a first condition is met, the broadcast channel occupies one time unit of the N time units; if a second condition is met, the broadcast channel occupies at least two time units of the N time units; the first condition includes one or more of the following: the second signal occupies the second time unit of the N time units, the sequence of the first signal is the first sequence, or the sequence of the second signal is the second sequence; the second condition includes one or more of the following: the sequence of the first signal is the third sequence, or the sequence of the second signal is the fourth sequence; and the first sequence is different from the third sequence, and the second sequence is different from the fourth sequence.

[0210] In a second implementation, the communication device 1300 can be applied to a second communication device to execute the method executed by the second communication device, specifically, the method executed by the second communication device in the aforementioned method embodiment. For example, the communication device 1300 can send a synchronization signal and a broadcast channel; or the communication device 1300 can determine the synchronization signal and the broadcast channel, and send the synchronization signal and the broadcast channel. The synchronization signal and the broadcast channel occupy N time units, the synchronization signal includes a first signal and a second signal, the first signal occupies the first time unit of the N time units, and N is a positive integer; if a first condition is met, the broadcast channel occupies one time unit of the N time units; if a second condition is met, the broadcast channel occupies at least two time units of the N time units; wherein the first condition includes one or more of the following: the second signal occupies the second time unit of the N time units, the sequence of the first signal is the first sequence, or the sequence of the second signal is the second sequence; the second condition includes one or more of the following: the sequence of the first signal is the third sequence, or the sequence of the second signal is the fourth sequence; wherein the first sequence is different from the third sequence, and the second sequence is different from the fourth sequence.

[0211] The present application also provides a communication system, which may include one or more of the following: a first communication device or a second communication device. The first communication device or the second communication device may refer to the descriptions in the aforementioned method embodiments and will not be described in detail.

[0212] A computer-readable storage medium is also provided in an embodiment of the present application, including program instructions, which, when executed on a computer, enables the computer to execute the methods or steps of the first communication device or the second communication device in each of the above embodiments.

[0213] A computer program product is also provided in an embodiment of the present application, including program instructions, which, when executed on a computer, enables the computer to execute the methods or steps of the first communication device or the second communication device in each of the above embodiments.

[0214] An embodiment of the present application provides a chip system, which includes a processor for implementing the functions of the first communication device or the second communication device in the aforementioned method (for example, executing the corresponding method or step). The chip system can be composed of a chip, or can include a chip and other discrete devices.

[0215] Optionally, the chip system further includes a memory for storing program instructions so that the above-mentioned processor reads and executes them to implement the corresponding method.

[0216] It should be understood that in the various embodiments of the present application, the size of the serial numbers of the above-mentioned processes does not mean the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present application.

[0217] Those skilled in the art will appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of this application.

[0218] Those skilled in the art will clearly understand that, for the convenience and brevity of description, the specific working processes of the systems, devices and units described above can refer to the corresponding processes in the aforementioned method embodiments and will not be repeated here.

[0219] In the several embodiments provided in this application, it should be understood that the disclosed systems, devices and methods can be implemented in other ways. For example, the device embodiments described above are merely schematic. For example, the division of the units is merely a logical function division. In actual implementation, there may be other division methods, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms.

[0220] The units described as separate components may or may not be physically separate, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed across multiple network units. Some or all of these units may be selected to achieve the purpose of this embodiment according to actual needs.

[0221] In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.

[0222] If the functions are implemented in the form of software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the part that essentially contributes to the technical solution of the present application or the part of the technical solution can be embodied in the form of a software product, which is stored in a storage medium and includes a number of instructions for enabling a computer device (which can be a personal computer, server, or network device, etc.) to execute all or part of the steps of the method described in each embodiment of the present application. The aforementioned storage medium includes various media that can store program codes, such as a USB flash drive, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk.

[0223] The above description is merely a specific embodiment of the present application, but the scope of protection of the embodiments of the present application is not limited thereto. Any person skilled in the art can easily conceive of changes or substitutions within the technical scope disclosed in the embodiments of the present application, and such changes or substitutions should be included in the scope of protection of the embodiments of the present application. Therefore, the scope of protection of the embodiments of the present application should be based on the scope of protection of the claims.

Claims

1. A communication method, characterized in that: The method comprises: receiving a synchronization signal and a broadcast channel, the synchronization signal and the broadcast channel occupying N time units, the synchronization signal including a first signal and a second signal, the first signal occupying a first time unit of the N time units, where N is a positive integer; When the first condition is met, the broadcast channel occupies one time unit of the N time units; when the second condition is met, the broadcast channel occupies at least two time units of the N time units; The first condition includes one or more of the following: the second signal occupies the second time unit of the N time units, and the sequence of the first signal is the first sequence, or the sequence of the second signal is the second sequence; the second condition includes one or more of the following: the sequence of the first signal is the third sequence, or the sequence of the second signal is the fourth sequence; wherein the first sequence is different from the third sequence, and the second sequence is different from the fourth sequence.

2. The method according to claim 1, characterized in that The one time unit is the second time unit among the N time units, and the second signal occupies the second time unit or the third time unit among the N time units; or, The one time unit is the third time unit among the N time units, and the second signal occupies the second time unit among the N time units.

3. The method according to claim 1 or 2, characterized in that The first signal and the second signal both occupy X consecutive frequency domain units in the frequency domain, and the broadcast channel occupies Y consecutive frequency domain units in the frequency domain, where both X and Y are positive integers; or The first signal and the second signal both occupy X consecutive frequency domain units in the frequency domain, and the broadcast channel occupies K1 consecutive frequency domain units and K2 consecutive frequency domain units in the frequency domain, wherein the frequency of the first frequency domain unit with the largest frequency among the K1 frequency domain units is less than the frequency of the second frequency domain unit with the smallest frequency among the K2 frequency domain units, and the difference between the frequency of the first frequency domain unit and the frequency of the second frequency domain unit is M times the frequency domain unit interval, wherein X, K1 and K2 are all positive integers, and M is a positive integer.

4. The method according to claim 3, characterized in that The end number of the K1 frequency domain units is (K1-1), the starting number of the X frequency domain units is K3, the starting number of the K2 frequency domain units is greater than or equal to (X+K3), and K3 is an integer greater than or equal to K1.

5. The method according to any one of claims 1 to 4, characterized in that The second signal occupies a second time unit among the N time units, the broadcast channel occupies a third time unit among the N time units, the first signal and the second signal both occupy X consecutive frequency domain units in the frequency domain, and the broadcast channel occupies Y consecutive frequency domain units in the frequency domain; or The second signal occupies the third time unit of the N time units, the broadcast channel occupies the second time unit of the N time units, the first signal and the second signal both occupy X consecutive frequency domain units in the frequency domain, and the broadcast channel occupies Y consecutive frequency domain units in the frequency domain; or The second signal occupies a second time unit among the N time units, the broadcast channel occupies a third time unit among the N time units, the first signal and the second signal both occupy X consecutive frequency domain units in the frequency domain, and the broadcast channel occupies K1 consecutive frequency domain units and K2 consecutive frequency domain units in the frequency domain, wherein the end number of the K1 frequency domain units is (K1-1), the start number of the X frequency domain units is K3, the start number of the K2 frequency domain units is greater than or equal to (X+K3), and K3 is an integer greater than or equal to K1; or, The second signal occupies the third time unit of the N time units, the broadcast channel occupies the second time unit of the N time units, the first signal and the second signal both occupy X consecutive frequency domain units in the frequency domain, and the broadcast channel occupies K1 consecutive frequency domain units and K2 consecutive frequency domain units in the frequency domain, wherein the end number of the K1 frequency domain units is (K1-1), the starting number of the X frequency domain units is K3, the starting number of the K2 frequency domain units is greater than or equal to (X+K3), and K3 is an integer greater than or equal to K1; or, The second signal and the broadcast channel occupy the second time unit of the N time units, the first signal and the second signal both occupy consecutive X frequency domain units in the frequency domain, and the broadcast channel occupies consecutive K1 frequency domain units and consecutive K2 frequency domain units in the frequency domain, wherein the end number of the K1 frequency domain units is (K1-1), the starting number of the X frequency domain units is K3, the starting number of the K2 frequency domain units is greater than or equal to (X+K3), and K3 is an integer greater than or equal to K1. number; Wherein, Y is greater than X, K3 is greater than or equal to K1, and X, Y, K1, K2 and K3 are all positive integers.

6. The method according to any one of claims 3 to 5, characterized in that The K1 is greater than the X.

7. The method according to any one of claims 1 to 6, characterized in that The synchronization signal and the broadcast channel are used for sensing.

8. A communication method, characterized in that: The method comprises: Sending a synchronization signal and a broadcast channel, where the synchronization signal and the broadcast channel occupy N time units, the synchronization signal includes a first signal and a second signal, the first signal occupies a first time unit of the N time units, where N is a positive integer; When the first condition is met, the broadcast channel occupies one time unit of the N time units; when the second condition is met, the broadcast channel occupies at least two time units of the N time units; The first condition includes one or more of the following: the second signal occupies the second time unit of the N time units, and the sequence of the first signal is the first sequence, or the sequence of the second signal is the second sequence; the second condition includes one or more of the following: the sequence of the first signal is the third sequence, or the sequence of the second signal is the fourth sequence; wherein the first sequence is different from the third sequence, and the second sequence is different from the fourth sequence.

9. The method according to claim 8, characterized in that The one time unit is the second time unit among the N time units, and the second signal occupies the second time unit or the third time unit among the N time units; or, The one time unit is the third time unit among the N time units, and the second signal occupies the second time unit among the N time units.

10. The method according to claim 8 or 9, characterized in that The first signal and the second signal both occupy X consecutive frequency domain units in the frequency domain, and the broadcast channel occupies Y consecutive frequency domain units in the frequency domain, where both X and Y are positive integers; or The first signal and the second signal both occupy X consecutive frequency domain units in the frequency domain, and the broadcast channel occupies K1 consecutive frequency domain units and K2 consecutive frequency domain units in the frequency domain, wherein the frequency of the first frequency domain unit with the largest frequency among the K1 frequency domain units is less than the frequency of the second frequency domain unit with the smallest frequency among the K2 frequency domain units, and the difference between the frequency of the first frequency domain unit and the frequency of the second frequency domain unit is M times the frequency domain unit interval, wherein X, K1 and K2 are all positive integers, and M is a positive integer.

11. The method according to claim 10, characterized in that The end number of the K1 frequency domain units is (K1-1), the starting number of the X frequency domain units is K3, the starting number of the K2 frequency domain units is greater than or equal to (X+K3), and K3 is an integer greater than or equal to K1.

12. The method according to any one of claims 8 to 11, characterized in that The second signal occupies a second time unit among the N time units, the broadcast channel occupies a third time unit among the N time units, the first signal and the second signal both occupy X consecutive frequency domain units in the frequency domain, and the broadcast channel occupies Y consecutive frequency domain units in the frequency domain; or The second signal occupies the third time unit of the N time units, the broadcast channel occupies the second time unit of the N time units, the first signal and the second signal both occupy X consecutive frequency domain units in the frequency domain, and the broadcast channel occupies Y consecutive frequency domain units in the frequency domain; or The second signal occupies a second time unit among the N time units, the broadcast channel occupies a third time unit among the N time units, the first signal and the second signal both occupy X consecutive frequency domain units in the frequency domain, and the broadcast channel occupies K1 consecutive frequency domain units and K2 consecutive frequency domain units in the frequency domain, wherein the end number of the K1 frequency domain units is (K1-1), the start number of the X frequency domain units is K3, the start number of the K2 frequency domain units is greater than or equal to (X+K3), and K3 is an integer greater than or equal to K1; or, The second signal occupies the third time unit of the N time units, the broadcast channel occupies the second time unit of the N time units, the first signal and the second signal both occupy X consecutive frequency domain units in the frequency domain, and the broadcast channel occupies K1 consecutive frequency domain units and K2 consecutive frequency domain units in the frequency domain, wherein the end number of the K1 frequency domain units is (K1-1), the starting number of the X frequency domain units is K3, the starting number of the K2 frequency domain units is greater than or equal to (X+K3), and K3 is an integer greater than or equal to K1; or, The second signal and the broadcast channel occupy the second time unit of the N time units, and the first signal and the The second signal occupies X consecutive frequency domain units in the frequency domain, and the broadcast channel occupies K1 consecutive frequency domain units and K2 consecutive frequency domain units in the frequency domain, wherein the end number of the K1 frequency domain units is (K1-1), the start number of the X frequency domain units is K3, the start number of the K2 frequency domain units is greater than or equal to (X+K3), and K3 is an integer greater than or equal to K1; Wherein, Y is greater than X, K3 is greater than or equal to K1, and X, Y, K1, K2 and K3 are all positive integers.

13. The method according to any one of claims 10 to 12, characterized in that The K1 is greater than the X.

14. The method according to any one of claims 8 to 13, characterized in that The synchronization signal and the broadcast channel are used for sensing.

15. A communication device, characterized in that: The method comprises modules for executing the method according to any one of claims 1 to 7.

16. A communication device, characterized in that: The method comprises modules for executing the method according to any one of claims 8 to 14.

17. A communication device, characterized in that: The method comprises at least one processor configured to execute the method according to any one of claims 1 to 7.

18. A communication device, characterized in that: The method comprises at least one processor configured to execute the method according to any one of claims 8 to 14.

19. A communication system, characterized in that: The method comprises a first communication device and / or a second communication device, wherein the first communication device is used to execute the method according to any one of claims 1 to 7, and the second communication device is used to execute the method according to any one of claims 8 to 14.

20. A computer-readable storage medium, characterized in that A computer program or instructions is stored, wherein the computer program or instructions are used to implement the method according to any one of claims 1 to 7.

21. A computer-readable storage medium, characterized in that A computer program or instructions is stored, wherein the computer program or instructions are used to implement the method according to any one of claims 8 to 14.

22. A computer program product, characterized in that The computer program product comprises a computer program, which, when run on a computer, causes the computer to perform the method according to any one of claims 1 to 7 .

23. A computer program product, characterized in that The computer program product comprises a computer program which, when run on a computer, causes the computer to perform the method according to any one of claims 8 to 14 .

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