Communication method and communication apparatus

Abstract

A communication method, comprising: a first communication device generating a first signal, and sending the first signal to a second communication device on a first time-frequency resource, wherein the first communication device and the second communication device support different communication protocols. The first time-frequency resource comprises a first frequency domain resource, the bandwidth of the first frequency domain resource is an integer multiple of a first SCS, the bandwidth of the first frequency domain resource covers at least one second SCS, the first SCS corresponds to a first communication protocol, and the second SCS corresponds to a second communication protocol. When the first frequency domain resource satisfies the condition, subcarrier alignment respectively defined by the first communication protocol and the second communication protocol can be realized, such that inter-device signal transmission can be carried out in a scenario where devices supporting different standards share spectrum resources.

Description

Communication method and communication apparatus

[0001] This application claims priority from the Chinese patent application No. 202410759542.0 filed on June 12, 2024, and titled "Communication method and communication apparatus", the content of which is incorporated herein by reference in its entirety. TECHNICAL FIELD

[0002] The present application relates to the field of communication, and more particularly, to a communication method and a communication apparatus. BACKGROUND

[0003] With the development of communication technology, the 6 gigahertz (GHz) band continues to expand as the main spectrum resource of the mid-band. At present, the allocation of this frequency band is still under discussion. One of the spectrum resource allocation methods being discussed is that cellular devices and wireless fidelity (WiFi) devices share the upper half of the 6 GHz (UGHz), such as 6425 to 7125 megahertz (MHz) in the 6 GHz can be allocated to cellular communication and WiFi communication.

[0004] Exemplarily, the sharing of spectrum resources by cellular devices and WiFi devices can be supported by designing coexistence signals, for example, cellular devices implement WiFi signal formats or WiFi devices implement cellular signal formats. However, the signal formats of existing devices differ greatly, and it is difficult to directly achieve compatibility. Therefore, for the scenario of sharing spectrum resources by cellular devices and WiFi devices, how to design coexistence signals that can be transmitted between devices has become a problem to be solved. SUMMARY

[0005] The present application provides a communication method to realize signal transmission between devices in the scenario of sharing spectrum resources by devices supporting different standards.

[0006] In a first aspect, a communication method is provided. The method can be performed by a first communication device. In the absence of special description, the "first communication device" in the present application can refer to the first communication device itself (for example, a network device, a terminal device, etc.), a component (for example, a processor, a chip, or a chip system, etc.) in the first communication device, or a logic module or software capable of realizing all or part of the functions of the first communication device. For ease of description, the following description takes the first communication device as an example.

[0007] The communication method comprises: generating a first signal; and transmitting the first signal to a second communication device on a first time-frequency resource, wherein the first communication device supports a first communication protocol, the second communication device supports a second communication protocol, the first communication protocol is a cellular communication protocol, and the second communication protocol is a wireless local area network protocol; or the first communication protocol is a wireless local area network communication protocol, the second communication protocol is a cellular communication protocol, the first time-frequency resource comprises a first frequency domain resource, a bandwidth of the first frequency domain resource is N times a first subcarrier spacing (SCS), the bandwidth of the first frequency domain resource covers at least one second SCS, the first SCS corresponds to the first communication protocol, the second SCS corresponds to the second communication protocol, and the N is a positive integer.

[0008] Based on the above technical solution, the first frequency domain resource in the first time-frequency resource used by the first communication device to transmit the first signal to the second communication device satisfies the following condition: the bandwidth of the first frequency domain resource is N times the first SCS defined by the first communication protocol, and the bandwidth range of the first frequency domain resource covers at least one second SCS defined by the second communication protocol.

[0009] For example, the first communication protocol is a cellular communication protocol, and the second communication protocol is a wireless local area network protocol; or for another example, the first communication protocol is a wireless local area network communication protocol, and the second communication protocol is a cellular communication protocol.

[0010] Further, on the premise that the first frequency domain resource satisfies the above condition, the subcarriers defined by the first communication protocol and the second communication protocol can be aligned, that is, the frequency domain resources in the time-frequency resource for transmitting the first signal are aligned. For example, the bandwidth range of the first frequency domain resource is determined by N first SCSs, and the N first SCSs correspond to at least one second SCS, and the bandwidth range of the first frequency domain resource covers at least one complete subcarrier defined by the second communication protocol, that is, the second communication device can receive a signal on the at least one complete subcarrier defined by the second communication protocol. Thus, in the scenario where devices supporting different standards share spectrum resources, signal transmission between devices can be realized.

[0011] In some implementations of the first aspect, when the first communication protocol is a cellular communication protocol and the second communication protocol is a wireless local area network protocol, the N takes a value including any one of the following: 3, 6, 11, 21, or 42.

[0012] Based on the above technical solution, in the scenario where the first communication protocol is a cellular communication protocol and the second communication protocol is a wireless local area network protocol, in order to realize the subcarrier alignment defined by the first communication protocol and the second communication protocol respectively, when the bandwidth of the first frequency domain resource is N times of the first SCS, the value of N can be in multiple different ways, thereby adapting to scenarios where the value of the first SCS and the value of the second SCS are different, and increasing the application range of the scheme.

[0013] In combination with the first aspect, in some implementations of the first aspect, in the case where the first communication protocol is a wireless local area network protocol and the second communication protocol is a cellular communication protocol, the value of N includes 1 or 2.

[0014] Based on the above technical solution, in the scenario where the first communication protocol is a wireless local area network protocol and the second communication protocol is a cellular communication protocol, in order to realize the subcarrier alignment defined by the first communication protocol and the second communication protocol respectively, when the bandwidth of the first frequency domain resource is N times of the first SCS, the value of N can be in multiple different ways, thereby adapting to scenarios where the value of the first SCS and the value of the second SCS are different, and increasing the application range of the scheme.

[0015] In combination with the first aspect, in some implementations of the first aspect, the value of N satisfies the following condition:

[0016] wherein, represents rounding up, Δf1 represents the first SCS, and Δf2 represents the second SCS.

[0017] Based on the above technical solution, the value of N can be specified to satisfy the requirement of the above formula, so that the bandwidth range of the first frequency domain resource covers at least one second SCS.

[0018] In combination with the first aspect, in some implementations of the first aspect, the sending of the first signal to the second communication device on the first time-frequency resource includes: sending N identical first sub-signals on N first subcarriers corresponding to the first time-frequency resource, wherein the first signal is composed of the N first sub-signals, and the N first subcarriers correspond to the N first sub-signals one by one.

[0019] Based on the above technical solution, when the first communication device sends the first signal to the second communication device, it sends N identical first sub-signals that constitute the first signal on adjacent N first subcarriers, so that the second communication device can correctly receive the first signal.

[0020] In some implementations of the first aspect, the first time-frequency resource comprises a first time domain resource, a first symbol set corresponding to the first time domain resource, the first symbol set comprising at least one first symbol, each of the first symbols corresponding to at least one second symbol, or the at least one first symbol corresponding to one second symbol, wherein the first symbol corresponds to the first communication protocol, and the second symbol corresponds to the second communication protocol.

[0021] According to the above technical solution, the identification of the N first subcarriers corresponding to the N first SCSs of the bandwidth of the first frequency domain resource satisfies the first correspondence relationship with the identification of the second subcarriers corresponding to the at least one second SCS covered by the bandwidth range of the first frequency domain resource, so that the at least one second subcarrier covered by the bandwidth range of the first frequency domain resource can be accurately obtained according to the first correspondence relationship and the identification of the N first subcarriers on which the first signal is transmitted, and the at least one second subcarrier on which the effective signal is received can be explicitly determined.

[0022] For example, the second communication device can determine whether the signal received on a certain subcarrier is an effective signal based on the first correspondence relationship. For example, when the subcarrier of the received signal belongs to the second subcarrier in the first correspondence relationship, the signal received on the subcarrier is an effective signal, and the second device does not need to make further judgment based on the identification of the subcarrier, thereby simplifying the scheme.

[0023] In some implementations of the first aspect, the bandwidth of the first frequency domain resource further covers a guard subcarrier interval, wherein the guard subcarrier interval comprises a part of at least one third subcarrier, or a part of at least one fourth subcarrier and at least one fifth subcarrier, and the guard subcarrier interval corresponds to the second communication protocol.

[0024] According to the above technical solution, the bandwidth range of the first frequency domain resource further covers a guard subcarrier interval in addition to the at least one second SCS, wherein the signal received on the subcarrier corresponding to the at least one second SCS is an effective signal, and the signal received on the subcarrier corresponding to the guard subcarrier interval is an invalid signal (such as an interference signal). For example, the guard subcarrier interval can correspond to a part of at least one third subcarrier, or the guard subcarrier interval can correspond to a part of at least one fourth subcarrier and at least one fifth subcarrier. The guard subcarrier interval can correspond to various forms of subcarriers, thereby improving the flexibility of the scheme.

[0025] In some implementations of the first aspect, the first time-frequency resource comprises a first time domain resource, a first symbol set corresponding to the first time domain resource, the first symbol set comprising at least one first symbol, each of the first symbols corresponding to at least one second symbol, or the at least one first symbol corresponding to one second symbol, wherein the first symbol corresponds to the first communication protocol, and the second symbol corresponds to the second communication protocol.

[0026] According to the technical solution, the first time domain resource in the first time-frequency resource used by the first communication device to send the first signal to the second communication device satisfies the following condition: the first time domain resource corresponds to a first symbol set, the first symbol set includes at least one first symbol, and each first symbol corresponds to at least one second symbol, or at least one first symbol corresponds to one second symbol. On the premise that the first time domain resource satisfies the above condition, the symbol alignment defined by the first communication protocol and the second communication protocol can be realized respectively, and the signal transmission efficiency between devices is improved.

[0027] With reference to the first aspect, in some implementations of the first aspect, a qth second symbol in the at least one second symbol satisfies the following relationship with the number p of the first symbol corresponding to the qth second symbol: p=floor((qT2) / T1)

[0028] wherein floor represents rounding down, T1 represents the symbol length defined by the first communication protocol, T2 represents the symbol length defined by the second communication protocol, and p and q are non-negative integers.

[0029] With reference to the first aspect, in some implementations of the first aspect, a q1th first symbol in the at least one first symbol satisfies the following relationship with the number p1 of the second symbol corresponding to the q1th first symbol: p1=floor((q1T1) / T2)

[0030] wherein floor represents rounding down, T1 represents the symbol length defined by the first communication protocol, T2 represents the symbol length defined by the second communication protocol, and p1 and q1 are non-negative integers.

[0031] With reference to the first aspect, in some implementations of the first aspect, if one of the first symbols in the at least one first symbol corresponds to multiple second symbols, the first symbol is a first guard interval symbol, otherwise the first symbol is a first valid symbol; or if one of the second symbols in the at least one second symbol corresponds to multiple first symbols, the second symbol is a second guard interval symbol, otherwise the second symbol is a second valid symbol.

[0032] According to the technical solution, there may be a first guard interval symbol and a first valid symbol in the at least one first symbol corresponding to a certain second symbol, so that the first communication device can determine not to send a signal on the first guard interval symbol, thereby ensuring the signal transmission reliability; or there may be a second guard interval symbol and a second valid symbol in the at least one second symbol corresponding to a certain first symbol, so that the second communication device can determine not to receive a signal on the second guard interval symbol, thereby ensuring the signal transmission reliability.

[0033] With reference to the first aspect, in some implementations of the first aspect, in a case where the first SCS and the second SCS are given, the identification of the at least one first valid symbol and the identification of the at least one second valid symbol satisfy a second correspondence relationship, where the second SCS corresponds to the second communication protocol.

[0034] Based on the above technical solution, the identification of the valid first symbol corresponding to the first time domain resource and the identification of the valid second symbol satisfy the second correspondence relationship, so that the second communication device can accurately learn the identification of the valid second symbol according to the second correspondence relationship and the identification of the first symbol in which the first signal is sent, thereby explicitly receiving the second symbol of the valid signal, simplifying the second communication device, and ensuring signal transmission reliability.

[0035] With reference to the first aspect, in some implementations of the first aspect, the time-frequency resource set to which the first time-frequency resource belongs is an intersection of a first frequency band range and a second frequency band range, the first frequency band range corresponds to the first communication protocol, and the second frequency band range corresponds to the second communication protocol.

[0036] The second aspect provides a communication method. The method can be executed by a second communication device. In the absence of special description, the "second communication device" in the present application can refer to the second communication device itself (for example, a network device, a terminal device), a component (for example, a processor, a chip, or a chip system) in the second communication device, or a logic module or software capable of realizing all or part of the functions of the second communication device. For ease of description, the following describes an example in which the second communication device executes.

[0037] The communication method includes: receiving a first signal from a first communication device on a first time-frequency resource; and parsing the first signal, where the first communication device supports a first communication protocol, the second communication device supports a second communication protocol, the first communication protocol is a cellular communication protocol, and the second communication protocol is a wireless local area network protocol; or the first communication protocol is a wireless local area network communication protocol, the second communication protocol is a cellular communication protocol, the first time-frequency resource includes a first frequency domain resource, a bandwidth of the first frequency domain resource is N times a first subcarrier spacing SCS, the bandwidth of the first frequency domain resource covers at least one second SCS, the first SCS corresponds to the first communication protocol, the second SCS corresponds to the second communication protocol, and the N is a positive integer.

[0038] With reference to the second aspect, in some implementations of the second aspect, in a case where the first communication protocol is a cellular communication protocol and the second communication protocol is a wireless local area network protocol, the N takes a value including any one of the following: 3, 6, 11, 21, or 42.

[0039] With reference to the second aspect, in some implementations of the second aspect, in a case where the first communication protocol is a wireless local area network protocol and the second communication protocol is a cellular communication protocol, the value of N comprises 1 or 2.

[0040] With reference to the second aspect, in some implementations of the second aspect, the value of N satisfies the following condition:

[0041] wherein, denotes rounding up, Δf1 denotes the first SCS, and Δf2 denotes the second SCS.

[0042] With reference to the second aspect, in some implementations of the second aspect, the identity of the N first subcarriers corresponding to the first time-frequency resource and the identity of the second subcarriers corresponding to the at least one second SCS satisfy a first correspondence relationship.

[0043] With reference to the second aspect, in some implementations of the second aspect, the bandwidth of the first frequency domain resource further covers a guard subcarrier spacing, and the method further comprises: determining that a second signal received on a subcarrier included in the guard subcarrier spacing is invalid, wherein the second signal is partially related to the first signal.

[0044] With reference to the second aspect, in some implementations of the second aspect, the first time-frequency resource comprises a first time domain resource, the first time domain resource corresponds to a first symbol set, the first symbol set comprises at least one first symbol, each first symbol corresponds to at least one second symbol, or the at least one first symbol corresponds to one second symbol,

[0045] wherein the first symbol corresponds to the first communication protocol, and the second symbol corresponds to the second communication protocol.

[0046] With reference to the second aspect, in some implementations of the second aspect, a qth second symbol in the at least one second symbol satisfies the following relationship with a number p of a first symbol corresponding to the qth second symbol: p = floor((qT2) / T1)

[0047] wherein floor denotes rounding down, T1 denotes a symbol length defined by the first communication protocol, T2 denotes a symbol length defined by the second communication protocol, and p and q are non-negative integers.

[0048] With reference to the second aspect, in some implementations of the second aspect, a q1th first symbol in the at least one first symbol satisfies the following relationship with a number p1 of a second symbol corresponding to the q1th first symbol: p1 = floor((q1T1) / T2)

[0049] wherein floor denotes a down rounding, T1 denotes a symbol length defined by the first communication protocol, T2 denotes a symbol length defined by the second communication protocol, and p1 and q1 are non-negative integers.

[0050] With reference to the second aspect, in some implementations of the second aspect, if one of the at least one first symbol corresponds to a plurality of the second symbols, the first symbol is a first guard interval symbol, otherwise the first symbol is a first valid symbol; or,

[0051] if one of the at least one second symbol corresponds to a plurality of the first symbols, the second symbol is a second guard interval symbol, otherwise the second symbol is a second valid symbol.

[0052] With reference to the second aspect, in some implementations of the second aspect, in a case where the first SCS and the second SCS are given, the identity of the at least one first valid symbol and the identity of the at least one second valid symbol satisfy a second correspondence relationship, wherein the second SCS corresponds to the second communication protocol.

[0053] The technical effects of the method according to the second aspect and possible designs thereof can refer to the technical effects in the first aspect and possible designs thereof.

[0054] A third aspect provides a communication apparatus. The communication apparatus is configured to implement the first aspect and any of the possible implementation manners thereof. Specifically, the communication apparatus comprises a processor and a memory configured to store a computer program; the processor is configured to invoke and run the computer program from the memory, so that the communication apparatus implements the first aspect and any of the possible implementation manners thereof.

[0055] In an implementation manner, the communication apparatus is a network device. When the communication apparatus is a network device, the transceiver unit can be a transceiver, or the input / output interface. The processing unit can be at least one processor. Optionally, the transceiver can be a transceiver circuit. Optionally, the input / output interface can be an input / output circuit.

[0056] In another implementation manner, the communication apparatus can be a chip, a chip system or a circuit in a network device. At this time, the transceiver unit can be an input / output interface, an interface circuit, an output circuit, an input circuit, a pin or related circuit on the chip, the chip system or the circuit; the processing unit can be at least one processor, a processing circuit or a logic circuit, etc.

[0057] In a fourth aspect, a communication apparatus is provided. The communication apparatus is configured to perform the method of the second aspect and any of the implementations thereof. Specifically, the communication apparatus includes a processor and a memory storing a computer program. The processor is configured to invoke and run the computer program from the memory, so that the communication apparatus performs the method of the second aspect and any of the implementations thereof.

[0058] In an implementation, the communication apparatus is a terminal device. When the communication apparatus is a terminal device, the transceiver unit can be a transceiver, or the input / output interface. The processing unit can be at least one processor. Optionally, the transceiver can be a transceiver circuit. Optionally, the input / output interface can be an input / output circuit.

[0059] In another implementation, the communication apparatus can be a chip, a chip system or a circuit in a terminal device. In this case, the transceiver unit can be an input / output interface, an interface circuit, an output circuit, an input circuit, a pin or a related circuit on the chip, the chip system or the circuit; the processing unit can be at least one processor, a processing circuit or a logic circuit, etc.

[0060] In a fifth aspect, a computer-readable storage medium is provided. The computer-readable storage medium stores a computer program which, when executed, causes the method of any of the implementations of the first aspect and the second aspect to be performed.

[0061] In a sixth aspect, a computer program product containing instructions is provided. The computer program product, when executed, causes the method provided by any of the implementations of the first aspect and the second aspect to be performed.

[0062] In a seventh aspect, a chip is provided. The chip includes a processor and a communication interface. The processor reads instructions through the communication interface and performs the method provided by any of the implementations of the first aspect and the second aspect.

[0063] Optionally, as an implementation, the chip further includes a memory storing a computer program or instructions. The processor is configured to execute the computer program or instructions stored on the memory. When the computer program or instructions are executed, the processor is configured to perform the method provided by any of the implementations of the first aspect and the second aspect.

[0064] In an eighth aspect, a communication system is provided. The communication system includes the communication apparatus of the third aspect and the communication apparatus of the fourth aspect.

[0065] In a ninth aspect, a computer program is provided. The computer program, when executed, causes the method provided by any of the implementations of the first aspect and the second aspect to be performed. BRIEF DESCRIPTION OF DRAWINGS

[0066] Figure 1 is a schematic diagram of a communication system suitable for use with the present application.

[0067] Figure 2 is a schematic flow chart diagram of a communication method according to an embodiment of the present application.

[0068] Figure 3 is a schematic diagram of a bandwidth of a first frequency domain resource according to an embodiment of the present application.

[0069] Figures 4(a) and (b) are schematic diagrams of a subcarrier according to an embodiment of the present application.

[0070] Figures 5(a) and (b) are schematic diagrams of another subcarrier according to an embodiment of the present application.

[0071] Figures 6(a) and (b) are schematic diagrams of yet another subcarrier according to an embodiment of the present application.

[0072] Figures 7(a) and (b) are schematic diagrams of yet another subcarrier according to an embodiment of the present application.

[0073] Figures 8(a) and (b) are schematic diagrams of yet another subcarrier according to an embodiment of the present application.

[0074] Figures 9(a) and (b) are schematic diagrams of yet another subcarrier according to an embodiment of the present application.

[0075] Figures 10(a) and (b) are schematic diagrams of yet another subcarrier according to an embodiment of the present application.

[0076] Figures 11(a) and (b) are schematic diagrams of yet another subcarrier according to an embodiment of the present application.

[0077] Figures 12(a) and (b) are schematic diagrams of yet another subcarrier according to an embodiment of the present application.

[0078] Figure 13 is a schematic diagram of a symbol according to an embodiment of the present application.

[0079] Figures 14(a) and (b) are schematic diagrams of a coexistence signalling method according to an embodiment of the present application.

[0080] Figure 15 is a schematic diagram of another coexistence signalling method according to an embodiment of the present application.

[0081] Figure 16 is a schematic block diagram of a communication device according to an embodiment of the present application.

[0082] Figure 17 is a schematic diagram of another communication device according to an embodiment of the present application.

[0083] Figure 18 is a schematic diagram of a chip system according to an embodiment of the present application.

[0084] FIG. 19 is a schematic diagram of another chip system according to an embodiment of the present application. DETAILED DESCRIPTION

[0085] In order to facilitate understanding of the embodiments of the present application, the following points are first explained.

[0086] First, in the present application, "for indicating" can include for directly indicating and for indirectly indicating. When describing that certain indication information is for indicating A, it can include that the indication information directly indicates A or indirectly indicates A, and does not mean that A must be carried in the indication information.

[0087] The information indicated by the indication information is referred to as to-be-indicated information, and in the specific implementation process, there are many ways to indicate the to-be-indicated information, for example but not limited to, the to-be-indicated information can be directly indicated, such as the to-be-indicated information itself or an index of the to-be-indicated information. The to-be-indicated information can also be indirectly indicated by indicating other information, where the other information and the to-be-indicated information have an association relationship. The to-be-indicated information can also be only indicated in part, and the other part of the to-be-indicated information is known or agreed in advance. For example, the indication of a specific information can also be realized by means of the arrangement order of each information agreed in advance (for example, a protocol stipulates), thereby reducing the indication overhead to a certain extent. At the same time, the common part of each information can be identified and uniformly indicated, so as to reduce the indication overhead caused by separately indicating the same information.

[0088] Second, in the present application, "at least one" means one or more, and "multiple" means two or more (including two). In addition, in the embodiments of the present application, "first", "second", and various numerical numbers (for example, "#1", "#2", etc.) are only for the convenience of description and do not limit the scope of the embodiments of the present application. The size of the serial number of each process below does not mean the execution order, and the execution order of each process should be determined according to its function and inherent logic, and should not constitute any limitation on the implementation process of the embodiments of the present application. It should be understood that the objects thus described can be interchanged under appropriate circumstances, so as to be able to describe schemes other than the embodiments of the present application. In addition, in the embodiments of the present application, "S210" and the like are only for the convenience of description and do not limit the order of execution steps.

[0089] Third, in the embodiments of the present application, the words "exemplary" or "for example" are used to mean serving as an example, instance, or illustration. Any embodiment or design scheme described as "exemplary" or "for example" in the present application should not be construed as being more preferred or having more advantages than other embodiments or design schemes. Rather, the words "exemplary" or "for example" are used in the sense of presenting a specific example.

[0090] Fourth, the "save" in the embodiments of the present application can refer to saving in one or more memories. The one or more memories can be separately arranged or integrated in the encoder or decoder, processor, or communication device. The one or more memories can also be partially separately arranged and partially integrated in the decoder, processor, or communication device. The type of memory can be any form of storage medium, which is not limited in the present application.

[0091] Fifth, in the embodiments of the present application, "protocol" can refer to a standard protocol in the communication field, which can include NR protocol and related protocols applied to future communication systems, which is not limited in the present application.

[0092] Sixth, in the embodiments of the present application, "of", "corresponding", "corresponding" and "associated" can be used interchangeably at times. It should be pointed out that when the distinction is not emphasized, the meanings expressed are consistent.

[0093] Seventh, in the embodiments of the present application, "in the case of", "when", "if" can be used interchangeably at times. It should be pointed out that when the distinction is not emphasized, the meanings expressed are consistent.

[0094] Eighth, the term "and / or" in this paper is only a description of the association relationship between the associated objects, which means that there can be three relationships, for example, A and / or B can represent: A exists alone, A and B exist together, and B exists alone. In addition, the character " / " in this paper generally represents that the associated objects before and after are an "or" relationship.

[0095] Ninth, "message", "information", or "information element (IE)" and the like can be used interchangeably in this paper, and the name of the message or information is not limited in any way, as long as the corresponding function can be realized.

[0096] In the present application, “sending” and “receiving” represent the direction of signal transmission. For example, “sending information to XX” can be understood as the destination of the information being XX, and “sending information” can include direct sending or indirect sending through other units or modules. “Receiving information from YY” can be understood as the source of the information being YY, and “receiving information” can include direct reception from YY or indirect reception from YY through other units or modules. In addition to air interface sending or air interface receiving signals implemented at the whole machine level of network devices or terminal devices, “sending” can also be understood as the “output” of the chip interface, and “receiving” can also be understood as the “input” of the chip interface. For example, a modem or a system-level chip (such as a system on a chip (SoC) chip or a system in package (SIP) chip, etc.) sends or receives signals. “Sending” or “receiving” can also be performed by device components, such as sending or receiving signals through several parts, modules, chips of a device using a bus, a wire, or an interface.

[0097] The technical solutions in the present application will be described below with reference to the accompanying drawings.

[0098] The technical solutions of the embodiments of the present application can be applied to various communication systems, for example: a long term evolution (LTE) system, an LTE frequency division duplex (FDD) system, an LTE time division duplex (TDD), a universal mobile communication system (UMTS), a worldwide interoperability for microwave access (WiMAX) communication system, a 5th generation (5G) system or a new radio (NR), and future communication systems, vehicle-to-X (V2X), which can include vehicle to network (V2N), vehicle to vehicle (V2V), vehicle to infrastructure (V2I), vehicle to pedestrian (V2P), etc., LTE-V, Internet of Vehicles, machine type communication (MTC), Internet of Things (IoT), LTE-M, machine to machine (M2M), wireless local area network (WLAN), etc.

[0099] FIG. 1 is a schematic diagram of a communication system suitable for the present application. As shown in FIG. 1, the communication system 100 includes at least one network device, for example, network device 111, network device 112, network device 113 shown in FIG. 1. The wireless communication system can also include at least one terminal device, for example, terminal device 121, terminal device 122, terminal device 123, terminal device 124, terminal device 125, terminal device 126, terminal device 127 shown in FIG. 1.

[0100] As a possible implementation, the communication system shown in FIG. 1 can be a communication system conforming to the requirements of the 3rd generation partnership project (3GPP) standard, referred to as a 3GPP network. The 3GPP network generally includes, but is not limited to, a 5G network, a 4th-generation (4G) network, and other future communication systems. In this implementation, the network device and the terminal device can be communication devices in the 3GPP network.

[0101] Exemplarily, in this implementation, the network device and the terminal device can communicate with each other, including but not limited to: multi-site transmission, enhanced mobile broadband (eMBB) transmission, etc., wherein the network device 112 and the network device 113 shown in FIG. 1 can perform multi-site transmission with the terminal device 124, and the network device 112 shown in FIG. 1 can perform eMBB transmission with the terminal device 121, the terminal device 122, and the terminal device 123.

[0102] Exemplarily, in this implementation, the network device and the network device can also communicate with each other, including but not limited to: backhaul, wherein the network device 111 and the network device 112 shown in FIG. 1 can communicate with each other through backhaul, and the network device 111 and the network device 113 can also communicate with each other through backhaul, wherein the network device 112 and the network device 113 can play the role of a relay node in the system.

[0103] Exemplarily, in this implementation, the terminal device and the terminal device can also communicate with each other, including but not limited to: device-to-device (D2D) transmission, wherein the terminal device 122 shown in FIG. 1 can communicate with the terminal device 125 through D2D transmission.

[0104] A network device is a network-side device with wireless transceiving function. The network device can be an apparatus in a radio access network (RAN) that provides wireless communication function for terminal devices. The network device can be a 3rd generation partnership project (3GPP)-related cellular system, such as a 5G mobile communication system or a future-oriented evolved system. The network device can also be an open radio access network (O-RAN or ORAN), a cloud radio access network (CRAN), or a wireless fidelity (WiFi) system. For example, the network device can be a base station, an evolved NodeB (eNodeB), a next generation NodeB (gNB) in a 5G mobile communication system, a base station in a subsequent evolution of 3GPP, a transmission reception point (TRP), an access node in a WiFi system, a wireless relay node, a wireless backhaul node, or the like. In a communication system employing different radio access technologies (RATs), the name of the device with base station function can be different. For example, it can be referred to as an eNB or eNodeB in an LTE system, or a gNB in a 5G system or an NR system. The specific name of the base station is not limited in the present application. The network device can contain one or more co-sited or non-co-sited transmission reception points. For another example, the network device can include at least one of the following: one or more central units (CUs), one or more distributed units (DUs), and one or more radio units (RUs).

[0105] In different systems, the CU (or CU-CP and CU-UP), DU or RU can also have different names, but those skilled in the art can understand their meanings. For example, in the ORAN system, the CU can also be referred to as O-CU (open CU), the DU can also be referred to as O-DU (open DU), the CU-CP can also be referred to as O-CU-CP, the CU-UP can also be referred to as O-CU-UP, and the RU can also be referred to as O-RU. Any of the CU (or CU-CP, CU-UP), DU and RU in this application can be implemented by a software module, a hardware module, or a combination of a software module and a hardware module. Exemplarily, the functions of the CU can be implemented by one entity or different entities. For example, the functions of the CU are further divided, i.e., the control plane and the user plane are separated and implemented by different entities, which are the control plane CU entity (i.e., the CU-CP entity) and the user plane CU entity (i.e., the CU-UP entity), respectively. The CU-CP entity and the CU-UP entity can be coupled with the DU to jointly complete the functions of the access network device. For example, the CU is responsible for processing non-real-time protocols and services, implementing the functions of the radio resource control (RRC) and the packet data convergence protocol (PDCP) layer. The DU is responsible for processing the physical layer protocol and real-time services, implementing the functions of the radio link control (RLC) layer, the media access control (MAC) layer and the physical (PHY) layer. In this way, part of the functions of the wireless access network device can be implemented by multiple network function entities. These network function entities can be network elements in a hardware device, or software functions running on a dedicated hardware, or virtualized functions instantiated on a platform (e.g., a cloud platform). The network device can also include an active antenna unit (AAU). The AAU implements part of the physical layer processing functions, radio frequency processing and related functions of the active antenna. Since the information of the RRC layer will eventually become the information of the PHY layer, or be converted from the information of the PHY layer, in this architecture, high-layer signaling, such as RRC layer signaling, can also be considered as being sent by the DU, or by the DU+AAU. It can be understood that the network device can be a device including one or more of the CU node, the DU node and the AAU node. In addition, the CU can be divided into a network device in the RAN, or the CU can be divided into a network device in the core network (CN), which is not limited in this application.For another example, in vehicle to everything (V2X) technology, the access network device can be a road side unit (RSU). A plurality of access network devices in a communication system can be base stations of the same type or base stations of different types. A base station can communicate with a terminal device directly or through a relay station. In embodiments of the present application, the device for implementing the function of a network device can be the network device itself or a device capable of supporting the network device to implement the function, such as a chip system or a combination device or component capable of implementing the function of an access network device, which can be installed in the network device. In embodiments of the present application, the chip system can be composed of a chip or can include a chip and other discrete devices.

[0106] The terminal device is a user-side device with wireless transceiver function, which can be a fixed device, a mobile device, a handheld device (such as a mobile phone), a wearable device, a vehicle-mounted device, or a wireless device (such as a communication module, a modem, or a chip system) built into the above devices. The terminal device is used to connect people, things, machines, etc., and can be widely used in various scenarios, such as cellular communication, D2D communication, V2X communication, machine-to-machine / machine-type communication (M2M / MTC) communication, Internet of Things, virtual reality (VR), augmented reality (AR), industrial control, self-driving, remote medical, smart grid, smart furniture, smart office, smart wear, smart transportation, smart city, unmanned aerial vehicle, robot, etc. Exemplarily, the terminal device can be a handheld terminal in cellular communication, a communication device in D2D, an Internet of Things device in MTC, a monitoring camera in smart transportation and smart city, or a communication device on an unmanned aerial vehicle, etc. The terminal device can also be referred to as user equipment (UE), user terminal, user device, user unit, user station, terminal, access terminal, access station, UE station, remote station, mobile device, or wireless communication device, etc. The terminal device can also be a terminal device in an IoT system. IoT is an important part of future information technology development, and its main technical feature is to connect objects through communication technology and network, so as to realize the intelligent network of man-machine interconnection and object-object interconnection. In the embodiments of the present application, IoT technology can achieve massive connection, deep coverage, and terminal power saving through, for example, narrow band (NB) technology. In the embodiments of the present application, the device for realizing the function of the terminal device can be a terminal device, or a device capable of supporting the terminal device to realize the function, such as a chip system or a combination device or component that can realize the function of the terminal device, which can be installed in the terminal device. The terminal device is usually provided with a communication module, circuit or chip (such as a modem chip, also known as a baseband chip, or a system on chip (SoC) chip or system in package (SIP) chip containing a modem core) for executing corresponding communication functions. The terminal device is also configured with program instructions for executing corresponding communication functions.

[0107] As another possible implementation, the communication system described in FIG. 1 can be a communication system conforming to the requirements of a wireless local area network (WLAN) standard, referred to as a WLAN network. The WLAN network generally includes, but is not limited to, Bluetooth, ZigBee, Ultra Wideband, IrDA infrared connection technology (infrared), HomeRF, and support for Institute of Electrical and Electronics Engineers (IEEE) 802.11 related standards, such as 802.11a / b / g standards, 802.11n standards, 802.11ac standards, 802.11ax standards, IEEE 802.11ax next-generation WiFi protocol, and the like. In this implementation, the network device and the terminal device can be communication devices in the WLAN network.

[0108] Exemplarily, in this implementation, the network device described above can be an access point (AP), where the access point can be a node for terminals (e.g., mobile phones) to enter a wired (or wireless) network, mainly deployed in homes, inside buildings, and inside parks, with a typical coverage radius of tens of meters to hundreds of meters, and of course, can also be deployed outdoors. The access point is equivalent to a bridge connecting wired and wireless networks, and the main role is to connect various wireless network clients together and then access the Ethernet network.

[0109] Exemplarily, in this implementation, the terminal device can be data communication between stations (STAs), where the station can be a non-AP station (non-AP STA), referred to as a non-AP station or STA. Specifically, the access point can be a terminal or a network device with a WiFi chip, and the network device can be a server, a router, a switch, a bridge, a computer, a mobile phone, a relay station, a vehicle-mounted device, a wearable device, a network device in a 5G network, a network device in a future network, or a network device in a public land mobile network (PLMN), and the like, and the embodiments of the present application are not limited. The access point can be a device supporting WiFi standards. For example, the access point can also support one or more standards of the IEEE 802.11 series, such as 802.11a, 802.11b, 802.11g, 802.11n, 802.11ac, 802.11ax, 802.11be, 802.11ad, 802.11ay, 802.11bn, 802.11bf, and the like.

[0110] Exemplarily, in this implementation, the non-AP station can be a wireless communication chip, a wireless sensor or a wireless communication terminal, etc., and can also be referred to as a user, a user equipment (UE), an access terminal, a user unit, a user station, a mobile station, a mobile terminal, a remote station, a remote terminal, a mobile device, a user terminal, a terminal, a wireless communication device, a user agent or a user apparatus. The non-AP station can be a cellular phone, a cordless phone, a session initiation protocol (SIP) phone, a wireless local loop (WLL) station, a personal digital assistant (PDA), a handheld device with wireless communication function, a computing device or other processing device connected to a wireless modem, a vehicle-mounted device, an Internet of Things device, a wearable device, a terminal device in a 5G network, a terminal device in a future network or a terminal device in a PLMN, etc., and the embodiments of the present application are not limited thereto. The non-AP station can be a device supporting WLAN standards. For example, the non-AP station can support one or more standards of the IEEE 802.11 series, such as 802.11a, 802.11b, 802.11g, 802.11n, 802.11ac, 802.11ax, 802.11be, 802.11ad, 802.11ay, 802.11bf, etc.

[0111] For example, the non-AP station can be a mobile phone, a tablet computer, a set-top box, a smart television, a smart wearable device, a vehicle-mounted communication device, a computer, an Internet of Things (IoT) node, a sensor, a smart home device such as a smart camera, a smart remote controller, a smart water meter, an electricity meter, and a sensor in a smart city, etc.

[0112] The AP or the non-AP station described above can include a transmitter, a receiver, a memory, a processor, etc., where the transmitter and the receiver are respectively used for transmitting and receiving of packet structures, the memory is used for storing signaling information and storing preset values agreed in advance, etc., and the processor is used for analyzing signaling information, processing related data, etc.

[0113] The network device and the terminal device can be deployed on land, including indoors or outdoors, handheld or vehicle-mounted; can also be deployed on water surface; and can also be deployed on aircraft, balloons and satellites in the air. The scenarios in which the network device and the terminal device are located are not limited in the embodiments of the present application.

[0114] Exemplarily, the communication system 100 can further include an application function (AF) network element, which is a control plane network function provided by an operator network, and is used to provide application layer information; and the communication system 100 can further include a session management function (SMF) network element, which is a control plane network function provided by an operator network. In the embodiment of the application, in the case where the communication system 100 includes the AF network element and the SMF network element, the AF can send service-related information to the network device through the SMF.

[0115] In order to facilitate understanding of the embodiments of the application, first, the basic concepts involved in the application are described.

[0116] 1, 6GHz frequency band: as the main spectrum resource for continuing to expand the medium frequency band, the allocation mode for the 6GHz frequency band is still under discussion at present.

[0117] Exemplarily, the allocation mode for the 6GHz frequency band includes but is not limited to:

[0118] 1) allocating the entire 6GHz frequency band to WiFi;

[0119] 2) allocating 5925-6425MHz in the 6GHz frequency band to WiFi, and allocating the remaining 6425-7125MHz (which can be referred to as U6G) to international mobile telecommunications (IMT), wherein the IMT can also be referred to as cellular communication, and the IMT and the cellular communication can be replaced in the following description;

[0120] 3) dividing all or part of the U6G frequency band for IMT, and the remaining frequency band allocation is not yet clear.

[0121] 4) cellular and WiFi share U6G. Among them, potential coexistence modes include coexistence based on geographical location (such as outdoor cellular, indoor WiFi), time-sharing coexistence, etc., and in addition, the method of solving coexistence interference can be:

[0122] ① Database-based method, through coexistence server deployment;

[0123] ② Enhanced perception-based method, such as coexistence signal interworking-based method. Among them, potential implementation modes of the coexistence signal include but are not limited to the following two modes:

[0124] As a possible implementation mode, the cellular device implements a WiFi signal format or the WiFi device implements a cellular signal format, and the cellular device and the WiFi device interwork.

[0125] However, in this implementation, due to the great difference in signal formats of existing devices, it is difficult to directly realize compatibility.

[0126] As another possible implementation, a new coexistence signal format is introduced, so that both cellular devices and WiFi devices can analyze the coexistence signal.

[0127] 2. System parameters (numerology) of cellular:

[0128] Typical configuration of SCS: 15 kHz (Frequency Division Duplex, FDD mode) or 30 kHz (time division duplex, TDD mode) for low frequency; 120 kHz for high frequency (such as millimeter wave); in addition, there are alternative configurations of 60 kHz and 240 kHz.

[0129] Orthogonal frequency division multiplexing (OFDM) symbol time domain length: in the case of SCS of 15, 30, 60, 120, and 240 kHz, the length of 1 slot is 1, 0.5, 0.25, 0.125, and 0.0625 ms, respectively, and each slot contains 14 OFDM symbols.

[0130] Exemplarily, taking a 20 MHz bandwidth and a 15 kHz SCS configuration as an example: the typical value of the sampling frequency is 30.72 MHz, and the sampling period is 32.552 ns; the length of the 1st and 8th symbols of each slot (including cyclic prefix, CP) is 71.875 μs, and the total number of sampling points is 160+2048, of which the 160 sampling points correspond to the CP length of the 1st and 8th symbols, and the 20248 sampling points correspond to the discrete fourier transform (DFT) size. The length of the remaining symbols (including CP) is 71.354 μs, and the total number of sampling points is 144+2048.

[0131] 3. System parameters of WiFi:

[0132] SCS configuration: the default SCS configuration of WiFi 6 and WiFi standards after WiFi 6 is 78.125 kHz, and the default SCS configuration of traditional WiFi communication systems before WiFi 6 is 312.5 kHz.

[0133] OFDM time domain symbol length: 13.6 μs (including 0.8 μs guard interval (GI)), and the traditional WiFi communication system is OFDM time domain symbol length 3.6 μs (including 0.4 μs GI);

[0134] Exemplarily, taking a 20 MHz bandwidth, 78.125 kHz SCS configuration as an example: the sampling frequency is 20 MHz, and the sampling period is 50 ns; each OFDM symbol length is 13.6 μs, and a total of 16+256 sampling points, the 16 sampling points correspond to the GI length of the OFDM symbol, and the 256 sampling points correspond to the DFT size.

[0135] 4, subcarrier numbering: in this application, the numbering of the Q subcarriers is from 0 to Q-1, if the first subcarrier in the Q subcarriers is numbered as M, then the subcarrier numbering of the Q subcarriers is from M to Q-1+M, wherein M is a positive integer. Hereinafter, taking the numbering of the subcarriers starting from 0 as an example, if the numbering of the subcarriers starts from M, the numbering of the subcarriers in the following can be uniformly added by M, and will not be repeated. The number of a certain subcarrier can be the identification, index, etc. of the subcarrier.

[0136] The above briefly introduces the scenario to which the communication method provided by the embodiments of the present application can be applied in combination with FIG. 1, and introduces the basic concepts that may be involved in the embodiments of the present application, and introduces the current discussion on the 6 GHz frequency spectrum resource allocation mode in the basic concepts, wherein one 6 GHz frequency spectrum resource allocation mode is that the cellular device and the WiFi device share part of the 6 GHz frequency band (for example, cellular and WiFi share U6G).

[0137] Optionally, the cellular device and the WiFi device can share part of the 6 GHz frequency band through unlicensed spectrum technology, for example, the cellular device meets the basic requirements of the unlicensed frequency band when running, and realizes the functions of traditional unlicensed frequency band devices such as listen before talk (LBT), clear channel assessment (CCA) on the basis of reserving the cellular frame structure.

[0138] However, the above-mentioned unlicensed spectrum technology for realizing that the cellular device and the WiFi device share part of the 6 GHz frequency band has the following problems:

[0139] 1) The cellular device loses the quality of service (QoS) guarantee capability. For example, the latency of the cellular device service is large.

[0140] 2) The cellular device and the WiFi device cannot transmit signals between each other, and further resource configuration, indication, etc. is not supported.

[0141] A coexistence signal transmission scheme between cellular device and WiFi device transmission in a scenario where cellular devices and WiFi devices share spectrum resources is as follows:

[0142] Based on power modulation signal design, low-rate information interaction can be realized without modifying the cellular device and WiFi device frame structure, and the specific scheme is as follows:

[0143] 1) Sub-band division: For example, a 20MHz bandwidth is configured, and the cellular and WiFi frequency bands are divided into multiple (for example, 3) sub-bands;

[0144] 2) Coexistence signal sub-band division: Each sub-band is further divided into K coexistence signal sub-bands, and the sub-carriers in each coexistence signal sub-band repeatedly transmit the same quadrature amplitude modulation (QAM) symbol;

[0145] 3) Coexistence signal transmission mode: Among the K coexistence signal sub-bands, K-1 coexistence signal sub-bands transmit high-energy QAM symbols, and 1 coexistence signal sub-band transmits low-energy QAM symbols. By adjusting the position of the coexistence signal sub-band transmitting the low-energy QAM symbol, the coexistence signal is transmitted. Each sub-band can carry floor(log2(K)) bits of information, where floor represents rounding down.

[0146] However, the coexistence signal transmission scheme between the cellular device and the WiFi device transmission described above has low transmission efficiency of the coexistence signal. For example, each sub-band described above includes K coexistence signal sub-bands, and can only carry floor(log2(K)) bits of information.

[0147] In order to solve the above-mentioned problems of the coexistence signal based on signal repetition, the present application provides a communication method to realize signal transmission between devices in a scenario where devices supporting different standards share spectrum resources.

[0148] The communication method provided by the embodiments of the present application can be applied to a system that communicates through multi-antenna technology, for example, the communication system 100 shown in FIG. 1. The communication system can include at least one network device and at least one terminal device.

[0149] The embodiments shown below do not particularly limit the specific structure of the execution subject of the method provided by the embodiments of the present application, as long as the execution subject can communicate according to the method provided by the embodiments of the present application by running a program in which the code of the method provided by the embodiments of the present application is recorded. For example, the method provided by the embodiments of the present application can be executed by a first communication device. In the case where no specific description is made, the "first communication device" in the present application can refer to the first communication device itself (for example, a network device or a terminal device), or can be a component (for example, a processor, a chip, or a chip system) in the first communication device, or can be a logic module or software capable of realizing all or part of the function of the first communication device. For another example, the method provided by the embodiments of the present application can be executed by a second communication device. In the case where no specific description is made, the "second communication device" in the present application can refer to the second communication device itself (for example, a network device or a terminal device), or can be a component (for example, a processor, a chip, or a chip system) in the second communication device, or can be a logic module or software capable of realizing all or part of the function of the second communication device.

[0150] FIG. 2 is a schematic flowchart of a communication method provided by the embodiments of the present application, including the following steps:

[0151] S210, the first communication device generates a first signal.

[0152] Specifically, the signaling format of the first signal is a signaling format that can be parsed by both the first communication device and the second communication device. For example, the first signal is one of the coexistence signals shown above, for example, the first signal can be denoted as coexistence signal 0.

[0153] The specific signaling format of the first signal is not limited in the present application, and the signaling format of the first signal can be parsed (or understood) by both the first communication device and the second communication device. In addition, the first communication device can generate and send at least one coexistence signal in the present application. In order to facilitate description, a certain coexistence signal (for example, the first signal) is taken as an example for description. Optionally, each coexistence signal can represent one or more bits of information.

[0154] In addition, the first communication device supports a first communication protocol, and the second communication device supports a second communication protocol. The first communication standard and the second communication standard are different, that is, the communication standards supported by the first communication device and the second communication device are different. For example, the first communication protocol is a cellular communication protocol (for example, supporting 5G or future communication standards), and the second communication protocol is a wireless local area network protocol (for example, supporting WiFi7 or future WiFi standards); or the first communication protocol is a wireless local area network communication protocol, and the second communication protocol is a cellular communication protocol.

[0155] By way of example and not limitation, the first communication device can be a network device or a terminal device supporting a first communication standard. For example, the first communication device is an apparatus providing wireless communication function for a terminal device in the RAN system as shown above, such as a gNB; for another example, the first communication device is a user-side device having wireless transceiving function in the RAN as shown above, such as a UE; for yet another example, the first communication device is a node for a terminal (e.g., a mobile phone) to enter a wired (or wireless) network in the WLAN system as shown above, such as an AP; for still another example, the first communication device is a user-side device having wireless transceiving function in the WLAN system as shown above, such as a STA.

[0156] By way of example and not limitation, the second communication device can be a network device or a terminal device supporting a second communication standard. For example, the second communication device is an apparatus providing wireless communication function for a terminal device in the RAN system as shown above, such as a gNB; for another example, the second communication device is a user-side device having wireless transceiving function in the RAN as shown above, such as a UE; for yet another example, the second communication device is a node for a terminal (e.g., a mobile phone) to enter a wired (or wireless) network in the WLAN system as shown above, such as an AP; for still another example, the second communication device is a user-side device having wireless transceiving function in the WLAN system as shown above, such as a STA.

[0157] The specific forms of the first communication device and the second communication device described above are merely examples and do not constitute any limitation on the protection scope of the present application, and the first communication device and the second communication device in the present application can support different communication standards, which will not be described one by one here.

[0158] For ease of description, the first communication device is taken as an example of a device supporting a first communication standard, and the second communication device is taken as an example of a device supporting a second communication standard in the following description. If the first communication device and the second communication device are devices supporting other communication standards, the description can be referred to the case where the first communication device is a device supporting a first communication standard and the second communication device is a device supporting a second communication standard, and the repeated description will not be given.

[0159] Further, the first communication device in the present application sends the generated first signal to the second communication device, and the method flow shown in FIG. 2 further includes:

[0160] S220, the first communication device sends the first signal to the second communication device, and correspondingly, the second communication device receives the first signal from the first communication device.

[0161] Specifically, the first communication device sending the first signal to the second communication device in the present application is that the first communication device sends the first signal to the second communication device on the first time-frequency resource.

[0162] Optionally, the first communication device sending the first signal to the second communication device can be that the first communication device directly sends the first signal to the second communication device, or the first communication device can send the first signal to the second communication device through other devices, and the present application does not make any limitation on the sending mode of the first signal. For example, when the first communication device is an AP and the second communication device is a gNB, the AP can send the first signal to the gNB through a UE.

[0163] Exemplarily, the time-frequency resource set to which the first time-frequency resource belongs is referred to as time-frequency resource set #1, and the time-frequency resource set #1 is a time-frequency resource that can be used for transmitting coexistence signals. The frequency band range corresponding to the time-frequency resource set #1 is determined according to the first frequency band range and the second frequency band range, for example, the time-frequency resource set #1 is the intersection of the first frequency band range and the second frequency band range. The first frequency band range corresponds to the first communication protocol, and the second frequency band range corresponds to the second communication protocol.

[0164] Further, the minimum frequency point of the frequency band range corresponding to the time-frequency resource set #1 is greater than or equal to a first value, and the maximum frequency point of the frequency band range corresponding to the time-frequency resource set is less than or equal to a second value, wherein the first value is the maximum value of the minimum frequency point of the first frequency band range and the minimum frequency point of the second frequency band range, and the second value is the minimum value of the maximum frequency point of the first frequency band range and the maximum frequency point of the second frequency band range.

[0165] Optionally, the frequency band range corresponding to the time-frequency resource set #1 is from a first frequency point to a second frequency point, for example, the frequency band range corresponding to the time-frequency resource set #1 is referred to as frequency band range #1, which is greater than or equal to the first frequency point and less than or equal to the second frequency point. The first frequency point is determined based on the minimum frequency point of the first frequency band range and the minimum frequency point of the second frequency band range, and the second frequency point is determined based on the maximum frequency point of the first frequency band range and the maximum frequency point of the second frequency band range. For ease of description, the first frequency point is denoted as f1 and the second frequency point is denoted as f2 in the following.

[0166] For example, the first frequency band range is from the third frequency point to the fourth frequency point, and the first frequency band range is recorded as a frequency band range #2, the frequency band range #2 is greater than or equal to the third frequency point and less than or equal to the fourth frequency point. The second frequency band range is from the fifth frequency point to the sixth frequency point, and the second frequency band range is recorded as a frequency band range #3, the frequency band range #3 is greater than or equal to the fifth frequency point and less than or equal to the sixth frequency point. For ease of description, the third frequency point is recorded as f3, the fourth frequency point is recorded as f4, the fifth frequency point is recorded as f5, and the sixth frequency point is recorded as f6 in the following.

[0167] The first frequency point is determined based on the third frequency point and the fifth frequency point, for example, the first frequency point is the maximum of the third frequency point and the fifth frequency point, or the first frequency point is greater than or equal to the maximum of the third frequency point and the fifth frequency point. For example, the first frequency point satisfies the following formula: f1≥max{f3,f5} (1-1)

[0168] The second frequency point is determined based on the fourth frequency point and the sixth frequency point, for example, the first frequency point is the minimum of the fourth frequency point and the sixth frequency point, or the second frequency point is less than or equal to the minimum of the fourth frequency point and the sixth frequency point. For example, the second frequency point satisfies the following formula: f2≤min{f4,f6} (1-2)

[0169] For example, the first communication device sets the signal on the first subcarrier corresponding to the time-frequency resource #2 to zero, that is, the first communication device does not carry the coexistence signal on the first subcarrier corresponding to the time-frequency resource #2. Optionally, if the signal (such as an interference signal) received by the second communication device on the second subcarrier corresponding to the time-frequency resource #2 is discarded as invalid signal.

[0170] For example, the first communication device sets the signal carried by at least one first subcarrier to zero; or the first communication device does not carry the first signal on at least one first subcarrier, wherein the at least one first subcarrier is outside the frequency band range corresponding to the time-frequency resource set #1.

[0171] The first time-frequency resource includes a first frequency domain resource, the bandwidth of the first frequency domain resource is N times of a first SCS, and the bandwidth of the first frequency domain resource covers at least one second SCS, the first SCS corresponds to a first communication protocol, the second SCS corresponds to a second communication protocol, and N is a positive integer.

[0172] As an example but not limitation, the subcarrier spacing and the subcarrier can be replaced in the application or correspond to each other.

[0173] For example, the N first SCSs correspond to N first subcarriers, the first subcarriers correspond to the first communication protocol, wherein the N first subcarriers can be referred to as a first subcarrier set, and the first subcarrier set can be referred to as a subcarrier cluster.

[0174] For another example, the at least one second SCS corresponds to at least one second subcarrier, and the second subcarrier corresponds to the second communication protocol.

[0175] The bandwidth of the first frequency domain resource covers (or encompasses) at least one second SCS, which can be understood as that there is at least one complete second SCS (or at least one complete second subcarrier defined by the second communication protocol) in the bandwidth of the first frequency domain resource.

[0176] The first SCS corresponds to the first communication protocol, which can be understood as that the first SCS is an SCS defined by the first communication protocol, such as an SCS defined by a cellular communication protocol, including but not limited to 15 kHz, 30 kHz, 60 kHz, 120 kHz, or 240 kHz, etc.; or an SCS defined by a wireless local area network protocol, including but not limited to 312.5 kHz or 78.125 kHz, etc. The subcarrier corresponding to the first SCS can be referred to as a first subcarrier, for example, the first communication protocol is a cellular communication protocol, and the first subcarrier can be referred to as a cellular subcarrier; for another example, the first communication protocol is a wireless local area network communication protocol, and the first subcarrier can be referred to as a wireless local area network subcarrier.

[0177] The second SCS corresponds to the second communication protocol, which can be understood as that the second SCS is an SCS defined by the second communication protocol, such as an SCS defined by a cellular communication protocol, including but not limited to 15 kHz, 30 kHz, 60 kHz, 120 kHz, or 240 kHz, etc.; or an SCS defined by a wireless local area network protocol, including but not limited to 312.5 kHz or 78.125 kHz, etc. The subcarrier corresponding to the second SCS can be referred to as a second subcarrier, for example, the second communication protocol is a cellular communication protocol, and the second subcarrier can be referred to as a cellular subcarrier; for another example, the second communication protocol is a wireless local area network communication protocol, and the second subcarrier can be referred to as a wireless local area network subcarrier.

[0178] For ease of description, the bandwidth of the first frequency domain resource can be denoted as △f, and the first SCS can be denoted as △f1. As known from the above, the value of △f in the present application can be an integer multiple of △f1, for example, △f satisfies the following formula: △f=N△f1 (2-1)

[0179] wherein N is a positive integer.

[0180] As a possible implementation, the first communication protocol is a cellular communication protocol, and the second communication protocol is a wireless local area network protocol.

[0181] In this implementation, the value of N in the above formula (2-1) includes any one of the following: 3, 6, 11, 21, or 42.

[0182] For example, in this implementation, as described in the foregoing basic concept about the system parameters of the cellular, the value of the first SCS defined by the first communication protocol can be 15 kHz, 30 kHz, 60 kHz, 120 kHz, or 240 kHz, etc. As described in the foregoing basic concept about the system parameters of the WiFi, the second SCS defined by the second communication protocol can be 312.5 kHz or 78.125 kHz.

[0183] As described above, the bandwidth of the first frequency domain resource used for transmitting the first signal satisfies the following condition:

[0184] The bandwidth of the first frequency domain resource is an integer multiple of the first SCS, for example, △f = N△f1; and the bandwidth of the first frequency domain resource covers at least one second SCS. It can be understood that the size of the bandwidth of the first frequency domain resource satisfies an integer multiple of the first SCS, and covers at least one second SCS defined by the second communication protocol.

[0185] For example, when the size of the first SCS is 15 kHz and the second SCS is 78.125 kHz, N can take the value of 11, indicating that the bandwidth of the first frequency domain resource is 11 times the size of the first SCS, so that the bandwidth of the first frequency domain resource can cover 2 second SCSs.

[0186] For another example, when the size of the first SCS is 30 kHz and the second SCS is 78.125 kHz, N can take the value of 6, indicating that the bandwidth of the first frequency domain resource is 6 times the size of the first SCS, so that the bandwidth of the first frequency domain resource can cover 2 second SCSs.

[0187] In this implementation, the values of the first SCS and the second SCS can also have other possible forms, as long as they satisfy the above condition of being an integer multiple of the first SCS and covering at least one second SCS, which will not be illustrated one by one here.

[0188] For ease of understanding, the possible relationship between the values of the first SCS, the second SCS, and the value of N in the implementation will be introduced below in combination with Table 1.

[0189] Table 1

[0190] In Table 1, △f1 represents the first SCS, △f2 represents the second SCS, and the value of N and △f1 can be used to determine the size of the bandwidth of the first frequency domain resource.

[0191] As another possible implementation, the first communication protocol is a wireless local area network protocol, and the second communication protocol is a cellular communication protocol.

[0192] In this implementation, the value of N in formula (2-1) includes 1 or 2.

[0193] For example, in this implementation, according to the description of the system parameters of WiFi in the foregoing basic concept, the first SCS defined by the first communication protocol can be 312.5 kHz or 78.125 kHz. According to the description of the system parameters of cellular in the foregoing basic concept, the value of the second SCS defined by the second communication protocol can be 15 kHz, 30 kHz, 60 kHz, 120 kHz, or 240 kHz, etc.

[0194] As described above, the bandwidth of the first frequency domain resource used for transmitting the first signal satisfies the following condition:

[0195] The bandwidth of the first frequency domain resource is an integer multiple of the first SCS, for example, △f = N△f1; and the bandwidth of the first frequency domain resource covers at least one second SCS. It can be understood that the size of the bandwidth of the first frequency domain resource satisfies an integer multiple of the first SCS, and covers at least one second SCS defined by the second communication protocol.

[0196] For example, when the size of the first SCS is 78.125 kHz and the second SCS is 15 kHz, N can take the value of 1, indicating that the bandwidth of the first frequency domain resource is 1 times of 78.125 kHz, so that the bandwidth of the first frequency domain resource can cover 5 second SCSs.

[0197] For another example, when the size of the first SCS is 78.125 kHz and the second SCS is 30 kHz, N can take the value of 1, indicating that the bandwidth of the first frequency domain resource is 1 times of 78.125 kHz, so that the bandwidth of the first frequency domain resource can cover 2 second SCSs.

[0198] For another example, when the size of the first SCS is 78.125 kHz and the second SCS is 60 kHz, N can take the value of 2, indicating that the bandwidth of the first frequency domain resource is 2 times of 78.125 kHz, so that the bandwidth of the first frequency domain resource can cover 2 second SCSs.

[0199] For example, when the first SCS size is 315.5 kHz and the second SCS is 15 kHz, N can take the value 1, indicating that the bandwidth of the first frequency domain resource is 1 times the first SCS size 315.5 kHz, so that the bandwidth of the first frequency domain resource can cover 21 second SCSs.

[0200] In this implementation, the values of the first SCS and the second SCS can also have other possible forms, as long as they satisfy the above condition that the first SCS is an integer multiple of the second SCS and covers at least one second SCS, which will not be illustrated one by one here.

[0201] For ease of understanding, the possible relationship between the values of the first SCS, the second SCS, and the value of N in the implementation will be briefly introduced below in combination with Table 2.

[0202] Table 2

[0203] In Table 2, △f1 represents the first SCS, △f2 represents the second SCS, and the value of N and △f1 can be used to determine the size of the bandwidth of the first frequency domain resource.

[0204] The above two possible implementations are only used to illustrate that when the values of the first SCS and the second SCS are determined in the present application, the possible value of N can be determined through the values of the first SCS and the second SCS and the rule that the bandwidth of the first frequency domain resource satisfies. The protection scope of the present application is not limited in any way, and when the values of the first SCS and the second SCS are other values, the value of N can also be other conditions when the bandwidth of the first frequency domain resource satisfies the above rule, which will not be illustrated one by one here.

[0205] For example, the bandwidth of the first frequency domain resource is N times the first subcarrier spacing SCS, and the bandwidth of the first frequency domain resource covers at least one second SCS, which can be represented as: N△f1>2△f2. That is, the value of N satisfies the minimum value of N>2△f2 / △f1.

[0206] For example, the value of N can satisfy the following conditions:

[0207] wherein, represents rounding up, △f1 represents the first SCS, and △f2 represents the second SCS.

[0208] For ease of understanding, the possible forms of △f in the embodiments of the present application will be briefly introduced below in combination with FIG. 3.

[0209] In FIG. 3, the subcarrier spacing △f defined by the cellular is 15 kHz, and the subcarrier spacing △f defined by the WiFi is imt wifi ​= 78.125kHz. If the first communication protocol mentioned above is a cellular communication protocol and the second communication protocol is a wireless LAN protocol, then Δf imt For the above △f1, △f wifi For example, △f2 as described above; or, if the first communication protocol is a wireless LAN protocol and the second communication protocol is a cellular communication protocol, then △f wifi For the above △f1, △f imt Let △f2 be the aforementioned value. Optionally, the first SCS mentioned above is △f. imt When, the value of △f is based on △f imt Determining the bandwidth of the first frequency domain resources means determining the bandwidth based on cellular subcarriers.

[0210] As shown in the left figure of Figure 3, the bandwidth of the first frequency domain resource can be 11 cellular subcarrier intervals (e.g., Δf = 11Δf). imt If △f corresponds to approximately 2.11 WiFi subcarrier intervals, it can be understood that △f covers two complete WiFi subcarrier intervals and a portion of one WiFi subcarrier interval.

[0211] For WiFi subcarrier intervals that span two sets of frequency domain resources (or coexisting signals), they can be used as WiFi protection subcarrier intervals. The WiFi subcarriers corresponding to these WiFi protection subcarrier intervals are denoted as WiFi protection subcarriers, as shown by the diagonal line in the right figure of Figure 3.

[0212] Optionally, the first SCS mentioned above is △f wifi When, the value of △f is based on △f wifi The bandwidth of the first frequency domain resource is determined based on the WiFi subcarrier.

[0213] As shown in the right figure of Figure 3, the bandwidth of the first frequency domain resource is one WiFi subcarrier interval (e.g., Δf = Δf). wifi If Δf corresponds to approximately 5.21 cellular subcarrier intervals, it can be understood that Δf covers 5 complete cellular subcarrier intervals and a portion of one cellular subcarrier interval.

[0214] Optionally, a cellular subcarrier spacing whose boundary spans two sets of frequency domain resources (or coexisting signals) can be used as a cellular guard subcarrier spacing. The cellular subcarriers corresponding to this cellular guard subcarrier spacing are denoted as cellular guard subcarriers, as shown by the diagonal line in the left figure of Figure 3.

[0215] The bandwidth of the first frequency domain resource shown in Figure 3 above is merely an example and does not constitute any limitation on the scope of protection of this application. When the subcarrier spacing Δf defined by the cell... imt and / or the subcarrier spacing Δf defined by WiFiwifi The bandwidth of the first frequency domain resource can also be other possibilities when the value is different from that shown in FIG. 3, which will not be illustrated one by one here.

[0216] By way of example but not limitation, the first communication device sending the first signal to the second communication device in step S220 described above can be that the first communication device sends N identical first sub-signals on N first subcarriers corresponding to the first time-frequency resource, wherein the first signal is composed of N first sub-signals, and the N first subcarriers correspond to the N first sub-signals one by one. It can be understood that in the process of sending the first signal, the first communication device can send the same signal on the adjacent N first subcarriers. For example, the first signal is a predefined information (such as 0 or 1), and the first communication device can repeatedly send the information N times on the adjacent N first subcarriers, such as repeatedly sending 0 or 1 N times.

[0217] For example, the first frequency domain resource corresponds to N first SCSs, and the N first SCSs correspond to adjacent N first subcarriers, and the first communication device sending the first signal to the second communication device on the first time-frequency resource can be that the first communication device repeatedly sends the first sub-signal N times on the adjacent N first subcarriers.

[0218] As can be seen from the above formula (2-2), under the premise that the value of N satisfies certain conditions, the bandwidth of the first frequency domain resource can cover at least one second SCS, so that the second communication device can receive the first signal.

[0219] When the above △f1 and △f2 are given (i.e., the frequency domain resource configuration of the cellular communication protocol and the wireless local area network protocol is given), the second communication device can determine whether the signal received on the subcarrier #1 is a valid signal or an invalid signal, or whether the subcarrier #1 is a valid subcarrier or a guard subcarrier according to whether the subcarrier #1 is at least one second SCS corresponding to the second subcarrier covered by the bandwidth of the first frequency domain resource. The signal received on the guard subcarrier is an invalid signal, and the signal received on the valid subcarrier is a valid signal.

[0220] By way of example but not limitation, the second communication device determining whether the subcarrier #1 is at least one second SCS corresponding to the second subcarrier includes but is not limited to the following two possible implementation manners:

[0221] As one possible implementation manner, the second communication device determines whether the number of the subcarrier #1 satisfies a preset constraint.

[0222] In a case where the number of the subcarrier #1 satisfies the preset constraint, the signal received by the second communication device on the subcarrier #1 is used for subsequent coexistence signal detection; or in a case where the number of the subcarrier #1 does not satisfy the preset constraint, the signal received on the subcarrier #1 is regarded as an invalid signal.

[0223] For example, the bandwidth of the first frequency domain resource also covers a guard subcarrier interval, the guard subcarrier interval includes a part of at least one third subcarrier (i.e., the guard subcarrier interval includes a part of a subcarrier, rather than a complete subcarrier); or a part of at least one fourth subcarrier and at least one fifth subcarrier (i.e., the guard subcarrier interval can include a complete subcarrier or a part of a subcarrier). The subcarriers included in the guard subcarrier interval covered by the bandwidth of the first frequency domain resource can be referred to as guard subcarriers, and the signals received by the guard subcarriers are invalid. The second communication device determines that the second signal received on the subcarriers included in the guard subcarrier interval is invalid, wherein the second signal is related to a part of the first signal (e.g., the second signal can be a part of the first signal, or the second signal can be a signal obtained by changing a part of the first signal).

[0224] If the number of the subcarrier #1 satisfies the preset constraint, the subcarrier #1 is regarded as a subcarrier that does not span multiple frequency domain resources (each frequency domain resource is used to transmit a coexistence signal), and belongs to the second subcarriers corresponding to the at least one second SCS covered by the bandwidth of the first frequency domain resource.

[0225] If the number of the subcarrier #1 does not satisfy the preset constraint, the subcarrier #1 is regarded as a subcarrier that spans multiple frequency domain resources, and does not belong to the second subcarriers corresponding to the at least one second SCS covered by the bandwidth of the first frequency domain resource, but belongs to the subcarriers corresponding to the guard subcarrier interval covered by the bandwidth of the first frequency domain resource.

[0226] For example, △f1=15 kHz, △f2=78.125 kHz, N=11, and the number of the receiving subcarriers of the second communication device corresponding to each coexistence signal can be different (e.g., the bandwidth of the frequency domain resource used to transmit the coexistence signal #1 covers 4 second subcarriers corresponding to the at least one second SCS, and the bandwidth of the frequency domain resource used to transmit the coexistence signal #2 covers 5 second subcarriers corresponding to the at least one second SCS), and the preset constraint can be:

[0227] Whether the number k of the subcarrier #1 satisfies the following formula: (k+1)△f2≤(n+1)△f (3-1)

[0228] n is the number of the first signal, n satisfies: n = floor ((k△f2+f3-f1) / △f),

[0229] wherein, floor represents down rounding, f1 represents the minimum frequency point of the time-frequency resource set to which the first time-frequency resource belongs, f3 represents the minimum frequency point of the first frequency band range defined by the first communication protocol, and △f represents the bandwidth of the first frequency domain resource.

[0230] As another possible implementation, the second communication device can determine, according to the first correspondence relationship, whether the subcarrier #1 is a second subcarrier corresponding to at least one second SCS covered by the bandwidth of the first frequency domain resource.

[0231] Specifically, the first correspondence relationship includes the identification of the N first subcarriers corresponding to the first time-frequency resource, and the correspondence relationship satisfied by the identification of the second subcarriers corresponding to the at least one second SCS.

[0232] Further, the first correspondence relationship described above also represents the relationship between the identification of the first signal (or the identification of the first frequency domain resource), the identification of the N first subcarriers corresponding to the bandwidth of the first frequency domain resource, and the identification of the second subcarriers corresponding to the at least one second SCS covered by the bandwidth of the first frequency domain resource. It can be understood that the first correspondence relationship represents the relationship between the identification of at least one coexisting signal (or the frequency domain resource carrying the coexisting signal), the identification of the first subcarriers corresponding to each coexisting signal, and the identification of the second subcarriers.

[0233] In this implementation, the first correspondence relationship can be embodied by a table, for example, the first communication protocol described above is a cellular communication protocol, and the second communication protocol is a wireless local area network protocol. The first correspondence relationship includes but is not limited to the following possible table forms:

[0234] For example, the system bandwidth is 20MHz, △f1 = 15kHz, △f2 = 78.125kHz, N = 11, and the first correspondence relationship includes but is not limited to the cases shown in Tables 3a to 3c below.

[0235] Table 3a

[0236] In the case shown in Table 3a, each frequency domain resource carrying a coexisting signal corresponds to 11 cellular subcarriers, and covers one complete WiFi subcarrier. In particular, the cellular subcarriers numbered 0 to 10 correspond to the WiFi subcarriers numbered 1 and 2 as guard subcarriers. Wherein, the frequency domain resource number can also be the number of the coexisting signal, the cellular includes at most 1272 subcarriers, and each coexisting signal corresponds to 11 cellular subcarriers, so at most 115 coexisting signals can be supported (for example, 115 coexisting signals numbered from 0 to 114 are shown in Table 3a above).

[0237] For example, the case shown in Table 3a is shown in (a) of FIG. 4, the frequency domain resource bandwidth range carrying coexistence signal 0 corresponds to 11 cellular subcarriers (cellular subcarriers numbered 0-10 shown in (a) of FIG. 4), and covers 1 WiFi subcarrier (WiFi subcarrier numbered 0 shown in (a) of FIG. 4); in addition, the frequency domain resource bandwidth range carrying coexistence signal 1 corresponds to 11 cellular subcarriers (cellular subcarriers numbered 11-21 shown in (a) of FIG. 4), and covers 1 WiFi subcarrier (WiFi subcarrier numbered 3 shown in (a) of FIG. 4), and so on, which will not be repeated here.

[0238] Table 3b

[0239] Table 3c

[0240] In the case shown in Table 3b or 3c, each frequency domain resource carrying coexistence signal corresponds to 11 cellular subcarriers, and covers one or two complete WiFi subcarriers. For example, the frequency domain resource of coexistence signal 0 shown in Table 3c corresponds to 11 cellular subcarriers (cellular subcarriers numbered 0-10 shown in Table 3c), and covers two complete WiFi subcarriers (WiFi subcarriers numbered 0 and 1 shown in Table 3c); for another example, the frequency domain resource of coexistence signal 8 shown in Table 3c corresponds to 11 cellular subcarriers (cellular subcarriers numbered 88-98 shown in Table 3c), and covers two complete WiFi subcarriers (WiFi subcarriers numbered 17 and 18 shown in Table 3c).

[0241] For example, the case shown in Table 3b or 3c is shown in (b) of FIG. 4, the frequency domain resource bandwidth range carrying coexistence signal 0 corresponds to 11 cellular subcarriers (cellular subcarriers numbered 0-10 shown in (a) of FIG. 4), and covers 2 WiFi subcarriers (WiFi subcarriers numbered 0 and 1 shown in (a) of FIG. 4); in addition, the frequency domain resource bandwidth range carrying coexistence signal 1 corresponds to 11 cellular subcarriers (cellular subcarriers numbered 11-21 shown in (a) of FIG. 4), and covers 1 WiFi subcarrier (WiFi subcarrier numbered 3 shown in (a) of FIG. 4), and so on, which will not be repeated here.

[0242] For another example, the system bandwidth is 20MHz, △f1=30kHz, △f2=78.125kHz, N=6, and the first correspondence relationship includes but is not limited to the cases shown in Table 4a and 4b below.

[0243] Table 4a

[0244] In the case shown in Table 4a, each frequency domain resource carrying a coexistence signal corresponds to 6 cellular subcarriers, and covers one complete WiFi subcarrier, wherein the cellular subcarriers numbered 0-5 correspond to the WiFi subcarriers numbered 1 and 2 as guard subcarriers. The frequency domain resource number can also be the coexistence signal number. The cellular subcarriers can include at most 612 subcarriers, and each coexistence signal corresponds to 6 cellular subcarriers, so at most 102 coexistence signals can be supported (for example, the 102 coexistence signals numbered 0-101 shown in Table 4a).

[0245] For example, in the case shown in Table 4a, as shown in (a) of FIG. 5, the frequency domain resource bandwidth range carrying coexistence signal 0 corresponds to 6 cellular subcarriers (for example, the cellular subcarriers numbered 0-5 shown in (a) of FIG. 5), and covers 1 WiFi subcarrier (for example, the WiFi subcarrier numbered 0 shown in (a) of FIG. 5); in addition, the frequency domain resource bandwidth range carrying coexistence signal 1 corresponds to 6 cellular subcarriers (for example, the cellular subcarriers numbered 6-11 shown in (a) of FIG. 5), and covers 1 WiFi subcarrier (for example, the WiFi subcarrier numbered 3 shown in (a) of FIG. 5), and so on, which will not be described herein.

[0246] Table 4b

[0247] In the case shown in Table 4b, each frequency domain resource carrying a coexistence signal corresponds to 6 cellular subcarriers, and covers one or two complete WiFi subcarriers. For example, the frequency domain resource of coexistence signal 0 shown in Table 4b corresponds to 6 cellular subcarriers (for example, the cellular subcarriers numbered 0-5 shown in Table 4b), and covers two complete WiFi subcarriers (for example, the WiFi subcarriers numbered 0 and 1 shown in Table 4b); for another example, the frequency domain resource of coexistence signal 3 shown in Table 4b corresponds to 6 cellular subcarriers (for example, the cellular subcarriers numbered 18-23 shown in Table 4b), and covers two complete WiFi subcarriers (for example, the WiFi subcarriers numbered 7 and 8 shown in Table 4b).

[0248] For example, in the case shown in Table 4b, as shown in (b) of FIG. 5, the frequency domain resource bandwidth range carrying coexistence signal 0 corresponds to 6 cellular subcarriers (for example, the cellular subcarriers numbered 0-5 shown in (a) of FIG. 5), and covers 2 WiFi subcarriers (for example, the WiFi subcarriers numbered 0 and 1 shown in (a) of FIG. 5); in addition, the frequency domain resource bandwidth range carrying coexistence signal 1 corresponds to 6 cellular subcarriers (for example, the cellular subcarriers numbered 6-11 shown in (a) of FIG. 5), and covers 1 WiFi subcarrier (for example, the WiFi subcarrier numbered 3 shown in (a) of FIG. 5), and so on, which will not be described herein.

[0249] The cases shown in Tables 4a and 4b are only exemplary. In the case of Δf1= 30 kHz, Δf2= 78.125 kHz, and N = 6, the possible forms of the first correspondence relationship do not constitute any limitation on the scope of protection of the present application, in which case the frequency domain resources carrying the coexistence signal correspond to 6 cellular subcarriers, and the first correspondence relationship covering at least one complete WiFi subcarrier is also within the scope of protection of the present application, which will not be illustrated one by one here.

[0250] For another example, the system bandwidth is 20 MHz, Δf1= 60 kHz, Δf2= 78.125 kHz, N = 3, and the first correspondence relationship includes but is not limited to the cases shown in Tables 5a and 5b.

[0251] Table 5a

[0252] In the case shown in Table 5a, each frequency domain resource carrying the coexistence signal corresponds to 3 cellular subcarriers, and covers one complete WiFi subcarrier, wherein the cellular subcarriers numbered 0-2 correspond to the WiFi subcarriers numbered 1 and 2 as the guard subcarriers. The frequency domain resource number can also be the number of the coexistence signal, the cellular subcarriers include at most 288 subcarriers, and each coexistence signal corresponds to 3 cellular subcarriers, so that at most 96 coexistence signals can be supported (for example, the 96 coexistence signals numbered 0-95 shown in Table 5a above).

[0253] Exemplarily, the case shown in Table 5a is shown in (a) of FIG. 6, the frequency domain resource bandwidth range carrying the coexistence signal 0 corresponds to 3 cellular subcarriers (for example, the cellular subcarriers numbered 0-5 shown in (a) of FIG. 6), and covers 1 WiFi subcarrier (for example, the WiFi subcarrier numbered 0 shown in (a) of FIG. 6); in addition, the frequency domain resource bandwidth range carrying the coexistence signal 1 corresponds to 3 cellular subcarriers (for example, the cellular subcarriers numbered 3-5 shown in (a) of FIG. 6), and covers 1 WiFi subcarrier (for example, the WiFi subcarrier numbered 3 shown in (a) of FIG. 6), and so on, which will not be described here.

[0254] Table 5b

[0255] In the case shown in Table 5b, each frequency domain resource carrying the coexistence signal corresponds to 3 cellular subcarriers, and covers one or two complete WiFi subcarriers. For example, the frequency domain resource of the coexistence signal 0 shown in Table 5b corresponds to 3 cellular subcarriers (e.g., the cellular subcarriers numbered 0-2 shown in Table 5b), and covers two complete WiFi subcarriers (e.g., the WiFi subcarriers numbered 0 and 1 shown in Table 5b); for another example, the frequency domain resource of the coexistence signal 3 shown in Table 5b corresponds to 3 cellular subcarriers (e.g., the cellular subcarriers numbered 9-11 shown in Table 5b), and covers two complete WiFi subcarriers (e.g., the WiFi subcarriers numbered 7 and 8 shown in Table 5b).

[0256] Exemplarily, the case shown in Table 5b is as shown in (b) of FIG. 6, the frequency domain resource bandwidth range carrying the coexistence signal 0 corresponds to 3 cellular subcarriers (e.g., the cellular subcarriers numbered 0-2 shown in (a) of FIG. 6), and covers 2 WiFi subcarriers (e.g., the WiFi subcarriers numbered 0 and 1 shown in (a) of FIG. 6); in addition, the frequency domain resource bandwidth range carrying the coexistence signal 1 corresponds to 3 cellular subcarriers (e.g., the cellular subcarriers numbered 3-5 shown in (a) of FIG. 5), and covers 1 WiFi subcarrier (e.g., the WiFi subcarrier numbered 3 shown in (a) of FIG. 6), and so on, which will not be described herein.

[0257] For another example, the system bandwidth is 20 MHz, Δf1=15 kHz, Δf2=312.5 kHz, N=42, and the first correspondence relationship includes but is not limited to the cases shown in Table 6a and Table 6b.

[0258] Table 6a

[0259] In the case shown in Table 6a, each frequency domain resource carrying the coexistence signal corresponds to 42 cellular subcarriers, and covers one complete WiFi subcarrier, wherein the cellular subcarriers numbered 0-41 correspond to the WiFi subcarriers numbered 1 and 2 as guard subcarriers. In this case, the frequency domain resource number can also be the coexistence signal number, the cellular subcarriers can include at most 1272 subcarriers, and each coexistence signal corresponds to 42 cellular subcarriers, so at most 30 coexistence signals can be supported (e.g., the 30 coexistence signals numbered 0-29 shown in Table 6a).

[0260] For example, the case shown in Table 6a is shown in (a) of FIG. 7, the frequency domain resource bandwidth range carrying coexistence signal 0 corresponds to 21 cellular subcarriers (cellular subcarriers numbered 0-41 shown in (a) of FIG. 7), and covers 1 WiFi subcarrier (WiFi subcarrier numbered 0 shown in (a) of FIG. 7); in addition, the frequency domain resource bandwidth range carrying coexistence signal 1 corresponds to 21 cellular subcarriers (cellular subcarriers numbered 42-83 shown in (a) of FIG. 7), and covers 1 WiFi subcarrier (WiFi subcarrier numbered 3 shown in (a) of FIG. 7), and so on, which will not be repeated here.

[0261] Table 6b

[0262] In the case shown in Table 6b, each frequency domain resource carrying coexistence signal corresponds to 42 cellular subcarriers, and covers one or two complete WiFi subcarriers. For example, the frequency domain resource carrying coexistence signal 0 shown in Table 6b corresponds to 42 cellular subcarriers (cellular subcarriers numbered 0-41 shown in Table 6b), and covers two complete WiFi subcarriers (WiFi subcarriers numbered 0 and 1 shown in Table 6b).

[0263] For example, the case shown in Table 6b is shown in (b) of FIG. 7, the frequency domain resource bandwidth range carrying coexistence signal 0 corresponds to 3 cellular subcarriers (cellular subcarriers numbered 0-41 shown in (a) of FIG. 7), and covers 2 WiFi subcarriers (WiFi subcarriers numbered 0 and 1 shown in (a) of FIG. 7); in addition, the frequency domain resource bandwidth range carrying coexistence signal 1 corresponds to 3 cellular subcarriers (cellular subcarriers numbered 42-83 shown in (b) of FIG. 7), and covers 1 WiFi subcarrier (WiFi subcarrier numbered 3 shown in (a) of FIG. 7), and so on, which will not be repeated here.

[0264] For another example, the system bandwidth is 20MHz, Δf1=30kHz, Δf2=312.5kHz, N=21, and the first correspondence relationship includes but is not limited to the cases shown in Tables 7a and 7b below.

[0265] Table 7a

[0266] In the case shown in Table 7a, each frequency domain resource carrying a coexistence signal corresponds to 21 cellular subcarriers, and covers one complete WiFi subcarrier, wherein the cellular subcarriers numbered 0-20 correspond to the WiFi subcarriers numbered 1 and 2 as guard subcarriers. The frequency domain resource number can also be the coexistence signal number. The cellular subcarriers can include at most 612 subcarriers, and each coexistence signal corresponds to 21 cellular subcarriers, so at most 29 coexistence signals can be supported (for example, the 29 coexistence signals numbered 0-28 shown in Table 7a).

[0267] For example, the case shown in Table 7a is shown in (a) of FIG. 8. The frequency domain resource carrying coexistence signal 0 corresponds to 21 cellular subcarriers (for example, the cellular subcarriers numbered 0-20 shown in (a) of FIG. 8), and covers one WiFi subcarrier (for example, the WiFi subcarrier numbered 0 shown in (a) of FIG. 8). In addition, the frequency domain resource carrying coexistence signal 1 corresponds to 21 cellular subcarriers (for example, the cellular subcarriers numbered 21-41 shown in (a) of FIG. 8), and covers one WiFi subcarrier (for example, the WiFi subcarrier numbered 3 shown in (a) of FIG. 8). The above is not repeated here.

[0268] Table 7b

[0269] In the case shown in Table 7b, each frequency domain resource carrying a coexistence signal corresponds to 21 cellular subcarriers, and covers one or two complete WiFi subcarriers. For example, the frequency domain resource carrying coexistence signal 0 shown in Table 7b corresponds to 21 cellular subcarriers (for example, the cellular subcarriers numbered 0-20 shown in Table 7b), and covers two complete WiFi subcarriers (for example, the WiFi subcarriers numbered 0 and 1 shown in Table 7b).

[0270] For example, the case shown in Table 7b is shown in (b) of FIG. 8. The frequency domain resource carrying coexistence signal 0 corresponds to 3 cellular subcarriers (for example, the cellular subcarriers numbered 0-20 shown in (a) of FIG. 8), and covers two WiFi subcarriers (for example, the WiFi subcarriers numbered 0 and 1 shown in (a) of FIG. 8). In addition, the frequency domain resource carrying coexistence signal 1 corresponds to 3 cellular subcarriers (for example, the cellular subcarriers numbered 21-41 shown in (b) of FIG. 8), and covers one WiFi subcarrier (for example, the WiFi subcarrier numbered 3 shown in (a) of FIG. 8). The above is not repeated here.

[0271] For another example, the system bandwidth is 20 MHz, △f1=60 kHz, △f2=312.5 kHz, N=11, and the first correspondence includes but is not limited to the cases shown in Table 8a and 8b.

[0272] Table 8a

[0273] In the case shown in Table 8a, each frequency domain resource carrying a coexistence signal corresponds to 11 cellular subcarriers, and covers one complete WiFi subcarrier, wherein the cellular subcarriers numbered 0-10 correspond to the WiFi subcarriers numbered 1 and 2 as guard subcarriers. The frequency domain resource number can also be the coexistence signal number. The cellular subcarriers can include a maximum of 288 subcarriers, and each coexistence signal corresponds to 11 cellular subcarriers, so a maximum of 26 coexistence signals can be supported (for example, the 26 coexistence signals numbered 0-25 shown in Table 8a).

[0274] For example, in the case shown in Table 8a, as shown in (a) of FIG. 9, the frequency domain resource bandwidth range carrying coexistence signal 0 corresponds to 11 cellular subcarriers (for example, the cellular subcarriers numbered 0-10 shown in (a) of FIG. 9), and covers 1 WiFi subcarrier (for example, the WiFi subcarrier numbered 0 shown in (a) of FIG. 9); in addition, the frequency domain resource bandwidth range carrying coexistence signal 1 corresponds to 11 cellular subcarriers (for example, the cellular subcarriers numbered 11-21 shown in (a) of FIG. 9), and covers 1 WiFi subcarrier (for example, the WiFi subcarrier numbered 3 shown in (a) of FIG. 9), and so on, which will not be repeated here.

[0275] Table 8b

[0276] In the case shown in Table 8b, each frequency domain resource carrying a coexistence signal corresponds to 11 cellular subcarriers, and covers one or two complete WiFi subcarriers. For example, the frequency domain resource carrying coexistence signal 0 shown in Table 8b corresponds to 11 cellular subcarriers (for example, the cellular subcarriers numbered 0-20 shown in Table 8b), and covers two complete WiFi subcarriers (for example, the WiFi subcarriers numbered 0 and 1 shown in Table 8b).

[0277] For example, in the case shown in Table 8b, as shown in (b) of FIG. 9, the frequency domain resource bandwidth range carrying coexistence signal 0 corresponds to 3 cellular subcarriers (for example, the cellular subcarriers numbered 0-10 shown in (a) of FIG. 9), and covers 2 WiFi subcarriers (for example, the WiFi subcarriers numbered 0 and 1 shown in (a) of FIG. 9); in addition, the frequency domain resource bandwidth range carrying coexistence signal 1 corresponds to 3 cellular subcarriers (for example, the cellular subcarriers numbered 11-21 shown in (b) of FIG. 9), and covers 1 WiFi subcarrier (for example, the WiFi subcarrier numbered 3 shown in (a) of FIG. 9), and so on, which will not be repeated here.

[0278] The cases shown in Tables 3a to 8b are only exemplary and do not limit the protection scope of the present application. In the case where the first communication protocol is a cellular communication protocol and the second communication protocol is a wireless local area network protocol, the first correspondence relationship can be in the form of the possible forms shown in the above tables, and the first correspondence relationship in which the frequency domain resource carrying the coexisting signal corresponds to N cellular subcarriers and covers at least one complete WiFi subcarrier is also within the protection scope of the present application, which will not be illustrated one by one here.

[0279] In this implementation, the first correspondence relationship can be embodied by a table, for example, the first communication protocol is a wireless local area network protocol and the second communication protocol is a cellular communication protocol. The first correspondence relationship includes but is not limited to the following possible table forms:

[0280] For example, the system bandwidth is 20 MHz, Δf1=78.125 kHz, Δf2=15 kHz, N=1, and the first correspondence relationship includes but is not limited to the cases shown in Tables 9a and 9b below.

[0281] Table 9a

[0282] In the case shown in Table 9a, each frequency domain resource carrying the coexisting signal corresponds to one WiFi subcarrier and covers four complete cellular subcarriers. The frequency domain resource number can also be the number of the coexisting signal. The WiFi includes at most 244 subcarriers, and each coexisting signal corresponds to one WiFi subcarrier, so that at most 244 coexisting signals can be supported (for example, the 244 coexisting signals shown in Table 9a above are numbered from 0 to 243).

[0283] For example, the case shown in Table 9a is shown in (a) of FIG. 10. The frequency domain resource bandwidth range carrying the coexisting signal 0 corresponds to one WiFi subcarrier (for example, the WiFi subcarrier numbered 0 shown in (a) of FIG. 10) and covers four cellular subcarriers (for example, the cellular subcarriers numbered 0 to 3 shown in (a) of FIG. 10). In addition, the frequency domain resource bandwidth range carrying the coexisting signal 1 corresponds to one WiFi subcarrier (for example, the WiFi subcarrier numbered 1 shown in (a) of FIG. 10) and covers one cellular subcarrier (for example, the cellular subcarriers numbered 6 to 9 shown in (a) of FIG. 10). The above will not be repeated here.

[0284] Table 9b

[0285] In the case shown in Table 9b, each frequency domain resource carrying a coexistence signal corresponds to one WiFi subcarrier, and covers four or five complete cellular subcarriers. In particular, the WiFi subcarrier numbered 0 corresponds to the five cells numbered 0-4. The frequency domain resource number can also be the coexistence signal number. WiFi includes a maximum of 244 subcarriers, and each coexistence signal corresponds to one WiFi subcarrier, so a maximum of 244 coexistence signals can be supported (for example, the 244 coexistence signals numbered 0-243 shown in Table 9b above).

[0286] For example, the case shown in Table 9b is shown in (b) of FIG. 10. The frequency domain resource bandwidth range carrying coexistence signal 0 corresponds to one WiFi subcarrier (the WiFi subcarrier numbered 0 shown in (b) of FIG. 10), and covers five cellular subcarriers (the cellular subcarriers numbered 0-4 shown in (b) of FIG. 10). In addition, the frequency domain resource bandwidth range carrying coexistence signal 1 corresponds to one WiFi subcarrier (the WiFi subcarrier numbered 1 shown in (b) of FIG. 10), and covers one cellular subcarrier (the cellular subcarriers numbered 6-9 shown in (b) of FIG. 10). Details are not described herein.

[0287] For another example, the system bandwidth is 20 MHz, Δf1=78.125 kHz, Δf2=30 kHz, N=1, and the first correspondence includes but is not limited to the cases shown in Table 10a and 10b below.

[0288] Table 10a

[0289] In the case shown in Table 10a, each frequency domain resource carrying a coexistence signal corresponds to one WiFi subcarrier, and covers one complete cellular subcarrier. The frequency domain resource number can also be the coexistence signal number. WiFi includes a maximum of 244 subcarriers, and each coexistence signal corresponds to one WiFi subcarrier, so a maximum of 244 coexistence signals can be supported (for example, the 244 coexistence signals numbered 0-243 shown in Table 10a above).

[0290] For example, the case shown in Table 10a is shown in (a) of FIG. 11. The frequency domain resource bandwidth range carrying coexistence signal 0 corresponds to one WiFi subcarrier (the WiFi subcarrier numbered 0 shown in (a) of FIG. 11), and covers one cellular subcarrier (the cellular subcarrier numbered 0 shown in (a) of FIG. 11). In addition, the frequency domain resource bandwidth range carrying coexistence signal 1 corresponds to one WiFi subcarrier (the WiFi subcarrier numbered 1 shown in (a) of FIG. 11), and covers one cellular subcarrier (the cellular subcarrier numbered 3 shown in (a) of FIG. 11). Details are not described herein.

[0291] Table 10b

[0292] In the case shown in Table 10b, each frequency domain resource carrying a coexistence signal corresponds to one WiFi subcarrier, and covers one or two complete cellular subcarriers. The frequency domain resource number can also be the number of the coexistence signal. WiFi includes at most 244 subcarriers, and each coexistence signal corresponds to one WiFi subcarrier. Therefore, at most 244 coexistence signals can be supported (for example, the 244 coexistence signals numbered from 0 to 243 shown in Table 10b above).

[0293] For example, the case shown in Table 10b is shown in (b) of FIG. 11. The frequency domain resource bandwidth range carrying coexistence signal 0 corresponds to one WiFi subcarrier (for example, the WiFi subcarrier numbered 0 shown in (b) of FIG. 11), and covers two cellular subcarriers (for example, the cellular subcarriers numbered 0 and 1 shown in (b) of FIG. 11). In addition, the frequency domain resource bandwidth range carrying coexistence signal 1 corresponds to one WiFi subcarrier (for example, the WiFi subcarrier numbered 1 shown in (b) of FIG. 11), and covers two cellular subcarriers (for example, the cellular subcarriers numbered 3 and 4 shown in (b) of FIG. 11). The frequency domain resource bandwidth range carrying coexistence signal 2 corresponds to one WiFi subcarrier (for example, the WiFi subcarrier numbered 2 shown in (b) of FIG. 11), and covers one cellular subcarrier (for example, the cellular subcarrier numbered 6 shown in (b) of FIG. 11). The rest is not described herein.

[0294] For another example, the system bandwidth is 20 MHz, Δf1=312.5 kHz, Δf2=60 kHz, N=1, and the first correspondence includes but is not limited to the cases shown in Tables 11a and 11b below.

[0295] Table 11a

[0296] In the case shown in Table 11a, each frequency domain resource carrying a coexistence signal corresponds to one WiFi subcarrier, and covers four complete cellular subcarriers. The frequency domain resource number can also be the number of the coexistence signal. WiFi includes at most 55 subcarriers, and each coexistence signal corresponds to one WiFi subcarrier. Therefore, at most 55 coexistence signals can be supported (for example, the 55 coexistence signals numbered from 0 to 54 shown in Table 11a above).

[0297] For example, as shown in Table 11a, as shown in (a) of FIG. 12, the frequency domain resource bandwidth range carrying coexistence signal 0 corresponds to one WiFi subcarrier (as shown in (a) of FIG. 12, the WiFi subcarrier numbered 0) and covers four cellular subcarriers (as shown in (a) of FIG. 12, the cellular subcarriers numbered 0-3); in addition, the frequency domain resource bandwidth range carrying coexistence signal 1 corresponds to one WiFi subcarrier (as shown in (a) of FIG. 12, the WiFi subcarrier numbered 1) and covers one cellular subcarrier (as shown in (a) of FIG. 12, the cellular subcarriers numbered 6-9), and so on, which will not be repeated here.

[0298] Table 11b

[0299] In the case shown in Table 11b, each frequency domain resource carrying a coexistence signal corresponds to one WiFi subcarrier and covers four or five complete cellular subcarriers. In this case, the frequency domain resource number can also be the coexistence signal number. WiFi includes a maximum of 55 subcarriers, and each coexistence signal corresponds to one WiFi subcarrier, so a maximum of 55 coexistence signals can be supported (for example, the 55 coexistence signals numbered from 0 to 54 shown in Table 11a above).

[0300] For example, as shown in Table 11b, as shown in (b) of FIG. 12, the frequency domain resource bandwidth range carrying coexistence signal 0 corresponds to one WiFi subcarrier (as shown in (b) of FIG. 12, the WiFi subcarrier numbered 0) and covers five cellular subcarriers (as shown in (b) of FIG. 12, the cellular subcarriers numbered 0-4); in addition, the frequency domain resource bandwidth range carrying coexistence signal 1 corresponds to one WiFi subcarrier (as shown in (b) of FIG. 12, the WiFi subcarrier numbered 1) and covers four cellular subcarriers (as shown in (b) of FIG. 12, the cellular subcarriers numbered 6-9), and so on, which will not be repeated here.

[0301] The cases shown in Tables 9a-11b are only exemplary and are given for the case where the first communication protocol is a wireless local area network protocol and the second communication protocol is a cellular communication protocol. The first correspondence relationship can be in the form shown in the tables, but this does not constitute any limitation on the scope of protection of the present application. In this case, the first correspondence relationship in which the frequency domain resource carrying the coexistence signal corresponds to N cellular subcarriers and covers at least one complete WiFi subcarrier is also within the scope of protection of the present application, which will not be repeated here.

[0302] The above describes the conditions that the bandwidth of the first frequency domain resource carrying the first signal in the present application must satisfy. The conditions that the first time domain resource carrying the first signal in the present application must satisfy are described below.

[0303] Exemplarily, the first time-frequency resource comprises a first time domain resource, the first time domain resource corresponds to a first symbol set, the first symbol set comprises at least one first symbol, each first symbol corresponds to at least one second symbol, or the at least one first symbol corresponds to one second symbol, wherein the first symbol corresponds to the first communication protocol, and the second symbol corresponds to the second communication protocol.

[0304] As a possible implementation, the first communication protocol defines a symbol length greater than or equal to the symbol length defined by the second communication protocol, and each first symbol corresponds to at least one second symbol. For example, the first communication protocol is a cellular communication protocol, and the second communication protocol is a wireless local area network protocol.

[0305] In this implementation, if each first symbol corresponds to at least one second symbol, the number p of the first symbol corresponding to the qth second symbol in the at least one second symbol satisfies the following relationship: p = floor((qT2) / T1)

[0306] Wherein, floor represents rounding down, T1 represents the symbol length defined by the first communication protocol, T2 represents the symbol length defined by the second communication protocol, and p and q are non-negative integers.

[0307] Exemplarily, in this implementation, the at least one second symbol includes a guard interval symbol and a valid symbol, wherein the second communication device does not detect a signal on the guard interval symbol and detects a signal on the valid symbol. For example, the second symbol #1 in the at least one second symbol corresponds to multiple first symbols, and the second symbol #1 is a guard interval symbol; or the second symbol #1 corresponds to one first symbol, and the second symbol #1 is a valid symbol. In order to distinguish, the guard interval symbol included in the at least one second symbol can be referred to as a second guard interval symbol, and the valid symbol included in the at least one second symbol can be referred to as a second valid symbol.

[0308] As an example but not limitation, the judgment method of the guard interval symbol and the valid symbol in the at least one second symbol can be: determining whether the number of the first symbol and the number of the second symbol satisfy a preset rule #1. For example, when the number p of the first symbol corresponding to the qth second symbol satisfies the following relationship: (q+1)T2≤(p+1)T1, the qth second symbol is a valid symbol, otherwise the qth second symbol is a guard interval symbol.

[0309] Wherein, satisfying the above formula means that the qth second symbol does not span multiple first symbols and is a valid symbol; if it does not satisfy the above formula, it means that the qth second symbol spans multiple first symbols and is a guard interval symbol.

[0310] Exemplarily, in this implementation, the number of valid second symbols corresponding to different first symbols can be different or the same. For example, the first communication protocol is a cellular communication protocol, the second communication protocol is a wireless local area network protocol, and △f1=15 kHz and △f2=78.125 kHz, a certain first symbol can correspond to 4 valid second symbols, and another first symbol can correspond to 5 valid second symbols. For another example, the first communication protocol is a cellular communication protocol, the second communication protocol is a wireless local area network protocol, and △f1=15 kHz and △f2=78.125 kHz, each first symbol can correspond to 4 valid second symbols.

[0311] By way of example and not limitation, the determination of whether the number of valid second symbols corresponding to different first symbols can be different or the same can be that whether the number of valid second symbols corresponding to different first symbols is determined, and whether a preset rule #2 is satisfied. For example, if the number of valid second symbols corresponding to different first symbols is the same, for example, the number of valid second symbols corresponding to each first symbol is the same, and is C, then the number p of first symbols corresponding to the qth second symbol satisfies the following relationship: (q+1)T2≤p T1+C T2

[0312] Wherein, C is a positive integer, for example, when C=4, each first symbol can correspond to 4 valid second symbols. The value of C satisfies 1≤C≤T1 / T2. Optionally, C is predefined by the protocol, or C is preset by the management device, etc. The value of C is not limited in this application.

[0313] As another possible implementation, the length of the symbol defined by the first communication protocol is less than or equal to the length of the symbol defined by the second communication protocol, and at least one first symbol corresponds to one second symbol. For example, the first communication protocol is a wireless local area network protocol, and the second communication protocol is a cellular communication protocol.

[0314] In this implementation, at least one first symbol corresponds to one second symbol, and the q1th first symbol in the at least one first symbol satisfies the following relationship with the number p1 of second symbols corresponding to the q1th first symbol: p1=floor((q1T1) / T2)

[0315] Wherein, floor represents rounding down, T1 represents the length of the symbol defined by the first communication protocol, T2 represents the length of the symbol defined by the second communication protocol, and p1 and q1 are non-negative integers.

[0316] Exemplarily, in this implementation, the at least one first symbol includes guard interval symbols and valid symbols, wherein the first communication device does not transmit signals on the guard interval symbols and transmits signals on the valid symbols. For example, a first symbol #1 in the at least one first symbol corresponds to multiple second symbols, and the first symbol #1 is a guard interval symbol; or the first symbol #1 corresponds to one second symbol, and the first symbol #1 is a valid symbol. For distinction, the guard interval symbols included in the at least one first symbol can be referred to as first guard interval symbols, and the valid symbols included in the at least one first symbol can be referred to as first valid symbols.

[0317] By way of example and not limitation, the determination manner of the guard interval symbols and the valid symbols in the at least one first symbol can be: determining whether the number of the second symbols and the number of the first symbols and satisfy a preset rule #3. For example, when the number p1 of the second symbols corresponding to the q1th first symbol satisfies the following relationship: (q1+1)T1≤(p1+1)T2, the q1th first symbol is a valid symbol, otherwise the q1th first symbol is a guard interval symbol.

[0318] Wherein, the above formula is satisfied, which means that the q1th first symbol does not span multiple second symbols, and is a valid symbol; if the above formula is not satisfied, which means that the q1th first symbol spans multiple second symbols, and is a guard interval symbol.

[0319] Exemplarily, in this implementation, the number of valid first symbols corresponding to different second symbols can be different or the same. For example, when the first communication protocol is a wireless local area network protocol, the second communication protocol is a cellular communication protocol, and △f1=78.125 kHz and △f2=15 kHz, a certain second symbol can correspond to 4 valid first symbols, and another second symbol can correspond to 5 valid first symbols. For another example, when the first communication protocol is a wireless local area network protocol, the second communication protocol is a cellular communication protocol, and △f1=78.125 kHz and △f2=15 kHz, each second symbol can correspond to 4 valid first symbols.

[0320] By way of example and not limitation, the determination manner of the number of valid first symbols corresponding to different second symbols can be: determining whether the number of the first symbols and the number of the second symbols and satisfy a preset rule #4. For example, if the number of valid first symbols corresponding to different second symbols is the same, such as the number of valid first symbols corresponding to each second symbol is the same, and is C, the number p1 of the second symbols corresponding to the q1th first symbol satisfies the following relationship: (q1+1)T1≤pT2+C T1.

[0321] Wherein, C is a positive integer, for example, when C=4, each second symbol can correspond to 4 effective first symbols. C satisfies 1≤C≤T2 / T1. Optionally, C is predefined by a protocol, or C is preset by a management device, etc. The value of C is not limited in this application.

[0322] As described above, the second communication device can determine whether a certain second symbol is an effective symbol according to whether the number of the second symbol satisfies the preset rule (for example, (q+1)T2≤(p+1)T1). Similarly, the first communication device can determine whether a certain first symbol is an effective symbol according to whether the number of the first symbol satisfies the preset rule (for example, (q1+1)T1≤(p1+1)T2).

[0323] The application also provides a scheme for determining whether a symbol is an effective symbol or a guard interval symbol, for example, determining whether a symbol is an effective symbol or a guard interval symbol according to a second correspondence relationship. Wherein, the second correspondence relationship includes the correspondence relationship between the effective first symbol and the effective second symbol corresponding to the first time domain resource.

[0324] The second correspondence relationship can be embodied by a table, for example, the first communication protocol described above is a cellular communication protocol, and the second communication protocol is a wireless local area network protocol. The second correspondence relationship includes but is not limited to the following possible table forms:

[0325] For example, when △f1=15kHz and △f2=78.125kHz, or when △f1=30kHz and △f2=78.125kHz, the second correspondence relationship can be as shown in Table 13. Different cellular symbols can correspond to different numbers of WiFi symbols, for example, when △f1=15kHz and △f2=78.125kHz, a certain cellular symbol corresponds to 4 WiFi symbols, and another cellular symbol corresponds to 5 WiFi symbols; or when △f1=30kHz and △f2=78.125kHz, a certain cellular symbol corresponds to 1 WiFi symbol, and another cellular symbol corresponds to 2 WiFi symbols.

[0326] Table 13

[0327] Optionally, each cellular symbol can also correspond to the same number of WiFi symbols, for example, when △f1=15kHz and △f2=78.125kHz, each cellular symbol corresponds to 4 WiFi symbols; or when △f1=30kHz and △f2=78.125kHz, each cellular symbol corresponds to 1 WiFi symbol.

[0328] In the case of △f1= 15 kHz, △f2= 78.125 kHz and △f1= 30 kHz, △f2= 78.125 kHz, the second correspondence can also be shown in Table 14 as follows:

[0329] Table 14

[0330] For example, in the case of △f1= 15 kHz, △f2= 312.5 kHz, the second correspondence can be shown in Table 15 as follows, where different cellular symbols can correspond to different numbers of WiFi symbols, such as a certain cellular symbol corresponding to 18 WiFi symbols and another cellular symbol corresponding to 19 WiFi symbols.

[0331] Table 15

[0332] Alternatively, each cellular symbol can also correspond to the same number of WiFi symbols, such as in the case of △f1= 15 kHz, △f2= 312.5 kHz, each cellular symbol corresponding to 18 WiFi symbols.

[0333] In the case of △f1= 15 kHz, △f2= 312.5 kHz, the second correspondence can also be shown in Table 16 as follows:

[0334] Table 16

[0335] The above Tables 13 to 16 are only examples of possible forms of the second correspondence and do not constitute any limitation on the scope of protection of the present application. The second correspondence can also have other possible forms, for example, the values of △f1 and △f2 can also be in other ways, which will not be described one by one here.

[0336] For ease of understanding, the relationship between the cellular symbols and the WiFi symbols will be described in conjunction with specific examples.

[0337] Example 1

[0338] As described in the foregoing basic concepts, the typical SCS defined by the cellular communication protocol is less than the typical SCS defined by the WiFi communication protocol, resulting in the cellular OFDM symbol length T sym,imt > the WiFi OFDM symbol length T sym,wifi A cellular symbol can correspond to multiple WiFi symbols, and the multiple WiFi symbols corresponding to a cellular symbol can be divided into valid symbols (e.g., a certain WiFi symbol only corresponds to a certain cellular symbol) and guard interval symbols (e.g., a certain WiFi symbol spans multiple cellular symbols). Wherein, if the first communication protocol is the cellular communication protocol and the second communication protocol is the WiFi communication protocol, the above T1 is Tsym,imt , T2 is T sym,wifi ; or, the first communication protocol is a WiFi communication protocol, and the second communication protocol is a cellular communication protocol, then T1 is T sym,wifi , T2 is T sym,imt .

[0339] Assuming that the symbols of the first communication device and the second communication device are synchronized, for the qth WiFi symbol, there is a corresponding pth cellular symbol, where p satisfies: p = floor((qT sym,wifi ) / T sym,imt ) (3-1)

[0340] As a possible implementation, one cellular symbol can correspond to multiple WiFi symbols, and the multiple WiFi symbols can include valid symbols and guard interval symbols.

[0341] As an example but not limitation, the judgment manner that one cellular symbol corresponds to the guard interval symbols and the valid symbols in the multiple WiFi symbols can be: when the number p of the cellular symbol corresponding to the qth WiFi symbol satisfies the following relationship, the qth WiFi symbol is a valid symbol, otherwise the qth WiFi symbol is a guard interval symbol: (q+1)T sym,wifi ≤(p+1)T sym,imt

[0342] Where, the above formula is satisfied, which means that the qth WiFi symbol does not span multiple cellular symbols, and is a valid symbol; if the above formula is not satisfied, which means that the qth WiFi symbol spans multiple cellular symbols, and is a guard interval symbol.

[0343] As another possible implementation, the number of valid WiFi symbols corresponding to different cellular symbols can be different or the same.

[0344] For example, in the case that the first communication protocol is a cellular communication protocol, the second communication protocol is a wireless local area network protocol, and△f1=15 kHz,△f2=78.125 kHz, a certain cellular symbol can correspond to 4 valid WiFi symbols, and another cellular symbol can correspond to 5 valid WiFi symbols. For another example, in the case that the first communication protocol is a cellular communication protocol, the second communication protocol is a wireless local area network protocol, and△f1=15 kHz,△f2=78.125 kHz, each cellular symbol can correspond to 4 valid WiFi symbols.

[0345] As an example but not limitation, the determination that the number of WiFi symbols corresponding to each cellular symbol is the same can be that when the number p of cellular symbols corresponding to the qth WiFi symbol satisfies the following relationship, the number of valid WiFi symbols corresponding to each cellular symbol can be the same, both being C: (q+1)T sym,wifi ≤p T sym,imt +C T sym,wifi

[0346] Wherein, C is a positive integer, for example, when C=4, each cellular symbol can correspond to 4 valid WiFi symbols. The value of C satisfies 1≤C≤T sym,imt / T sym,wifi . Alternatively, C is predefined by the protocol, or C is preset by the management device, etc. The value of C is not limited in this application.

[0347] Exemplarily, the system bandwidth is 20MHz, the cellular communication protocol defines the SCS as 15kHz SCS, the sampling rate is 30.72MHz, and the OFDM symbol length (including CP) T sym,imt =71.875μs or 71.354μs;

[0348] The WiFi communication protocol defines the SCS as 78.125kHz, the baseband sampling rate is 20MHz, and the OFDM symbol length (including GI) T sym,wifi =13.6μs. Then the length of each cellular OFDM symbol is about 5.25-5.28 WiFi OFDM symbol lengths.

[0349] Figure 13 illustrates the alignment of cellular and WiFi device OFDM symbols in the time domain, wherein the cellular symbols are a total of 7 symbols, i.e. half a slot, and the total length is 71.875+71.354*6=500μs; the WiFi symbols are a total of 37 symbols (13.6*37=503.2μs), and the total length difference between the two is 3.2μs, from which it can be calculated that 17 cellular slots (each cellular slot contains 14 symbols, a total of 238 cellular symbols, and the total time length is 17ms) are a total of 108.8μs=8 WiFi symbols, i.e. every 17ms, the cellular and WiFi symbols are completely aligned, and this time length is defined as the cellular symbol and WiFi symbol alignment period.

[0350] In Figure 13, the valid symbols in the WiFi OFDM symbol are marked with numbers, and the guard interval symbols are blank squares. The operations involved in transmitting coexistence signals are as follows:

[0351] When the cellular device transmits the coexistence signal: the WiFi device skips the guard interval symbol when detecting the coexistence signal;

[0352] When the WiFi device transmits the coexistence signal: zero the guard interval symbol to avoid crosstalk to adjacent cellular symbols.

[0353] Exemplarily, the relationship between the cellular and WiFi symbol alignment period and the typical SCS value is recorded in Table 17 as follows:

[0354] Table 17

[0355] Further, after the second communication device receives the first signal described above, the method flow shown in FIG. 2 further includes:

[0356] S230, the second communication device parses the first signal.

[0357] Specifically, the parsing manner of the first signal in the present application is not limited. For example, the second communication device can parse the signal received on the valid subcarrier and / or valid symbol.

[0358] In the communication method shown in FIG. 2, the first frequency domain resource in the first time-frequency resource used by the first communication device to transmit the first signal to the second communication device satisfies the following conditions: the bandwidth of the first frequency domain resource is N times of the first SCS defined by the first communication protocol, and the bandwidth range of the first frequency domain resource covers at least one second SCS defined by the second communication protocol.

[0359] Wherein, the first communication protocol is a communication protocol supported by the first communication device, and the second communication protocol is a communication protocol supported by the second communication device. For example, the first communication protocol is a cellular communication protocol, and the second communication protocol is a wireless local area network protocol; for another example, the first communication protocol is a wireless local area network communication protocol, and the second communication protocol is a cellular communication protocol.

[0360] Further, under the premise that the first frequency domain resource satisfies the above conditions, the subcarrier alignment defined by the first communication protocol and the second communication protocol can be realized, for example, the bandwidth range of the first frequency domain resource is determined by N first SCSs, and the N first SCSs correspond to at least one second SCS, and the bandwidth range of the first frequency domain resource covers at least one complete subcarrier defined by the second communication protocol. Thus, in the scenario of sharing spectrum resources by devices supporting different standards, signal transmission between devices can be realized.

[0361] In order to facilitate understanding, the following introduces specific embodiments to illustrate the transmission manner of the coexistence signal.

[0362] FIG. 14(a) and (b) are schematic diagrams of a coexistence signal transmission manner provided by an embodiment of the present application.

[0363] In the coexistence signal transmission mode shown in (a) and (b) of FIG. 14, for example, the first communication protocol is a cellular communication protocol, the second communication protocol is a wireless local area network protocol, the system bandwidth is 20 MHz, Δf1=15 kHz, Δf2=78.125 kHz, N=11, and one cellular symbol corresponds to 4 or 5 WiFi symbols.

[0364] As shown in (a) of FIG. 14, the first correspondence between the cellular subcarrier number and the WiFi subcarrier number can be the case shown in Table 3a (for example, the cellular subcarriers numbered 0-10 correspond to the WiFi subcarriers numbered 1 and 2 as guard subcarriers), and the second correspondence between the cellular symbol number and the WiFi symbol number can be the case shown in Table 13 (for example, one cellular symbol corresponds to 4 or 5 WiFi symbols).

[0365] As shown in (b) of FIG. 14, the first correspondence between the cellular subcarrier number and the WiFi subcarrier number can be the case shown in Table 3b or 3c (for example, the cellular subcarriers numbered 0-10 correspond to the WiFi subcarriers numbered 2 as guard subcarriers), and the second correspondence between the cellular symbol number and the WiFi symbol number can be the case shown in Table 13 (for example, one cellular symbol corresponds to 4 or 5 WiFi symbols).

[0366] In the communication method shown in (a) and (b) of FIG. 14, the 11 adjacent cellular subcarriers are transmitted as a subcarrier cluster, and the receiving end, according to the time-frequency resource block correspondence, takes the time-frequency resource blocks across multiple coexistence signals as a guard interval (for example, the diagonal line part in (a) and (b) of FIG. 14, including the guard subcarriers and guard interval symbols described above) and does not receive the coexistence signals, and the remaining time-frequency resource blocks complete the reception of the corresponding coexistence signals.

[0367] FIG. 15 is a schematic diagram of another coexistence signal transmission mode provided by an embodiment of the present application.

[0368] In the coexistence signal transmission mode shown in FIG. 15, for example, the first communication protocol is a wireless local area network protocol, the second communication protocol is a cellular communication protocol, the system bandwidth is 20 MHz, Δf1=78.125 kHz, Δf2=15 kHz, N=1, and 4 or 5 WiFi symbols correspond to one cellular symbol.

[0369] As shown in FIG. 15, the first correspondence relationship between the cellular subcarrier number and the WiFi subcarrier number can be the case shown in Table 9a (e.g., each frequency domain resource carrying a coexistence signal corresponds to one WiFi subcarrier, and covers 4 complete cellular subcarriers), and the second correspondence relationship between the cellular symbol number and the WiFi symbol number can be the case shown in Table 13 (e.g., 4 or 5 WiFi symbols correspond to one cellular symbol).

[0370] In the coexistence signal transmission mode shown in FIG. 15, a single WiFi subcarrier is used as a subcarrier cluster to transmit the coexistence signal, and the transmission end and the reception end take the time-frequency resource blocks corresponding to multiple coexistence signals as a guard interval (e.g., the diagonal line part in FIG. 15, including the guard subcarrier and the guard interval symbol described above) to not perform transmission and reception of the coexistence signal, and the remaining time-frequency resource blocks complete transmission and reception of the corresponding coexistence signal.

[0371] The above (a) and (b) in FIG. 14 and FIG. 15 are only used to illustrate the coexistence signal transmission mode in the present application, and do not limit the protection scope of the present application. When the first SCS and the second SCS take other values, there are other possible ways of coexistence signal transmission, which are not illustrated one by one here.

[0372] The size of the serial number of the above processes does not mean the order of execution. The execution order of each process should be determined according to its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present application.

[0373] In various embodiments of the present application, the terms and / or descriptions of different embodiments are consistent and can be mutually referred to if there is no special description and logical conflict. The technical features in different embodiments can be combined to form new embodiments according to their inherent logical relationship.

[0374] In some of the above embodiments, the devices in the existing network architecture are mainly used as examples for illustrative description (such as the first communication device, the second communication device, etc.), and the specific form of the device is not limited in the embodiments of the present application. For example, devices that can achieve the same function in the future are also applicable to the embodiments of the present application.

[0375] It can be understood that the methods and operations realized by the devices (such as the first communication device, the second communication device) in the above various method embodiments can also be realized by components (such as chips or circuits) of the devices.

[0376] The above describes the communication method provided by the embodiments of the present application in detail in combination with FIG. 2. The above communication method is mainly introduced from the perspective of the interaction between the first communication device and the second communication device. It can be understood that the first communication device and the second communication device contain the hardware structure and / or software module corresponding to the execution of each function in order to realize the above functions.

[0377] Those skilled in the art can realize that the units and algorithm steps of each example described in combination with the embodiments disclosed herein can be realized in the form of hardware or a combination of hardware and computer software. Whether a certain function is executed in the form of hardware or computer software driving hardware depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of the present application.

[0378] The following describes the communication device provided by the embodiments of the present application in detail in combination with FIG. 16 to FIG. 19. The description of the device embodiments corresponds to the description of the method embodiments, and therefore, the content not described in detail can be referred to the above method embodiments, and part of the content will not be described again for the sake of brevity.

[0379] The embodiments of the present application can divide the function modules of the communication device according to the above method examples, for example, each function module can be divided corresponding to each function, or two or more functions can be integrated in one processing module. The above integrated module can be realized in the form of hardware, or in the form of software function module, or a combination of software and hardware. The division of the modules in the embodiments of the present application is illustrative, and is only a logical function division, and another division mode can be used in actual implementation. The following takes the example of dividing each function module corresponding to each function.

[0380] FIG. 16 is an exemplary block diagram of the communication device 10 provided by the embodiments of the present application.

[0381] As shown in FIG. 16, for example, the communication device 10 can include a chip system 110, a memory 120, a bus 130, a power management module 140, or a transceiver 150, etc.

[0382] The chip system 110 can be an integrated circuit chip with signal processing capability. In the implementation process, each step of the above method (such as S210 and S230 in FIG. 2) can be completed by the integrated logic circuit of hardware or the instruction in the form of software in the chip system 110.

[0383] By way of example and not limitation, the chip system 110 can include a circuit or chip responsible for processing of signals (e.g., a modem chip, also known as a baseband chip, or a system on chip (SoC) chip or system in package (SIP) chip containing a modem core).

[0384] Optionally, the chip system 110 can also be provided with a memory (e.g., a cache) for storing instructions and data. In some embodiments, the memory in the chip system 110 is a cache memory. The memory can hold instructions or data that the chip system 110 has just used or recycled. If the chip system 110 needs to use the instructions or data again, it can be directly called from the memory. This avoids repeated access and reduces the waiting time of the chip system 110, thus improving the efficiency of the system.

[0385] In some embodiments, the chip system 110 can include one or more interfaces. The interfaces can include an inter-integrated circuit (I2C) interface, an inter-integrated circuit sound (I2S) interface, a pulse code modulation (PCM) interface, a universal asynchronous receiver / transmitter (UART) interface, a mobile industry processor interface (MIPI), a general-purpose input / output (GPIO) interface, a SIM interface, and / or a USB interface, etc.

[0386] The memory 120 can include a random access memory (RAM) and a read-only memory (ROM). The memory 120 can store computer-readable computer-executable code including instructions that, when executed, cause the processor to perform various functions described herein.

[0387] Optionally, the code can include instructions for implementing aspects of the present application as discussed herein including instructions for supporting the generation or resolution of a first symbol. The code can be stored in a non-transitory computer-readable medium such as system memory or other type of memory. In some cases, the code can not be directly executable by the processor 110 but can cause a computer (e.g., when compiled and executed) to perform functions described herein. In some cases, the memory 120 can include a basic I / O system that can control basic hardware or software operations such as interactions with peripheral components or devices.

[0388] By way of example, the chip system 110 performs various functional applications and data processing of the communication device 10 by running instructions stored in the memory 120. For example, when the communication device 10 performs file transmission with other devices (which can also be terminals or access network devices), the chip system 110 of the communication device 10 can invoke computer executable program code stored in the memory 120 to implement the data and / or signaling transmission method provided by the embodiments of the present application.

[0389] In addition, the memory 120 can be integrated in the above-mentioned chip system 110 or independent of the chip system 110.

[0390] The bus 130 can be a universal serial bus (USB) for supporting mutual communication between various parts in the communication device 10.

[0391] The power management module 140 is configured to receive charging input from a charger. Optionally, the power management module 140 can supply power to the communication device 10 (e.g., a battery module of the communication device 10) while charging the communication device 10. By way of example and not limitation, the power management module 140 can also supply power to devices other than the communication device 10.

[0392] The transceiver 150 can communicate bi-directionally with one or more antennas, wired or wireless links for example. The transceiver 150 can represent a wireless transceiver and can communicate wirelessly with another wireless transceiver. The transceiver 150 can also include a modem to modulate the packets and to provide the modulated packets to the antennas for transmission, and to demodulate packets received from the antennas. The transceiver 150 can include a transmitter and a receiver, where the transmitter is configured to transmit signals and the receiver is configured to receive signals.

[0393] In some cases, the wireless device can include a single antenna. However, in some cases the device can have more than one antenna, like antenna 1 and antenna 2 as shown in FIG. 16, which can be capable of concurrently transmitting or receiving multiple wireless transmissions. Illustratively, antenna 1 and antenna 2 are used to transmit and receive electromagnetic wave signals. Each antenna in the communication apparatus 10 can be used to cover a single or multiple communication bands. Different antennas can also be multiplexed to improve the utilization of the antennas. For example: antenna 1 can be multiplexed as a diversity antenna for a wireless local area network. In some other embodiments, the antennas can be used in combination with a tuning switch. The communication apparatus 10 can transmit files to other devices through the wireless communication function.

[0394] In one design, the communication apparatus 20 can correspond to the first communication device in the above method embodiments.

[0395] The apparatus 10 can implement the steps or procedures performed by the first communication device in the above method embodiments, where the transceiver 150 can be used to perform the transceiving related operations of the first communication device in the above method embodiments, e.g., performing the step S220 of transmitting the first signal in the above method embodiments; the chip system 110 can be used to perform the processing related operations of the first communication device in the above method embodiments, e.g., performing the step S210 of generating the first signal in the above method embodiments.

[0396] In another design, the communication apparatus 10 can correspond to the second communication device in the above method embodiments.

[0397] The apparatus 10 can implement the steps or procedures performed by the second communication device in the above method embodiments, where the transceiver 150 can be used to perform the transceiving related operations of the second communication device in the above method embodiments, e.g., performing the step S220 of receiving the first signal in the above method embodiments; the chip system 110 can be used to perform the processing related operations of the second communication device in the above method embodiments, e.g., performing the step S230 of parsing the first signal in the above method embodiments.

[0398] In this design, the communication apparatus 10 can include modules such as the short-range communication module 164, the sensor 161, the display 162, or the camera 163 as shown in FIG. 16.

[0399] The short-range communication module 164 can include modules that support short-range communication such as WIFI, Bluetooth, etc.

[0400] The sensor 161 can include a pressure sensor, a gyroscope sensor, a barometric pressure sensor, a magnetic sensor, an acceleration sensor, a distance sensor, a proximity light sensor, a fingerprint sensor, a temperature sensor, a touch sensor, an ambient light sensor, a bone conduction sensor, etc.

[0401] The display 162 is configured to display images, videos, and the like. The display includes a display panel. The display panel can be a liquid crystal display (LCD), an organic light-emitting diode (OLED), an active-matrix organic light-emitting diode (AMOLED), a flex light-emitting diode (FLED), a Miniled, a MicroLed, a Micro-oLed, a quantum dot light emitting diodes (QLED), or the like. For example, in embodiments of the present application, the display can be configured to display interfaces required to be displayed by the communication apparatus 10. For example, the communication apparatus 10 can realize the display function by means of a GPU, the display, an application processor, and the like. The GPU is a microprocessor for image processing, which is connected to the display and the application processor. The GPU is configured to perform mathematical and geometric calculations for graphics rendering. The chip system 110 can include one or more GPUs, which execute program instructions to generate or change display information.

[0402] The camera 163 is configured to acquire images, videos, and the like.

[0403] It can be understood that the structure shown in FIG. 16 does not constitute a specific limitation on the communication apparatus 10, and the specific structure of the terminal device and / or the network device can refer to that shown in FIG. 16. In some embodiments, the communication apparatus 10 can also include more or fewer components than those shown in FIG. 16, or combine certain components, or split certain components, or different component arrangements, and the like. Alternatively, some components shown in FIG. 16 can be implemented in hardware, software, or a combination of software and hardware, and the terminal device and / or the network device can add or reduce components on the basis of the structure given in FIG. 16.

[0404] FIG. 17 is a schematic block diagram of a communication apparatus 20 according to an embodiment of the present application.

[0405] As shown in FIG. 17, the communication apparatus 20 can include a baseband unit 210, which can communicate with external devices through a cellular RF transceiver 220 (for example, when the communication apparatus 20 is a terminal device, the baseband unit 210 can communicate with an access network device through the cellular RF transceiver 220; for another example, when the communication apparatus 20 is an access network device, the baseband unit 210 can communicate with a terminal device and / or a core network device through the cellular RF transceiver 220).

[0406] The baseband unit 210 can include a computer-readable medium / memory. The baseband unit 210 is responsible for general processing, including the execution of software stored on the computer-readable medium / memory. The software, when executed by the baseband unit 304, causes the baseband unit 210 to perform the various functions described supra. The computer-readable medium / memory can also be used for storing data that is manipulated by the baseband unit 210 when executing software.

[0407] The baseband unit 210 further includes a receiving unit 201, a managing unit 202 and a transmitting unit 203. The managing unit 202 includes one or more sub-units shown in FIG. 17 (e.g., a signal generating sub-unit and a signal analyzing sub-unit, wherein the signal generating sub-unit can be used for the generation of the first signal in the above method embodiments. And the signal analyzing sub-unit can be used for the analyzing of the first signal in the above method embodiments). The units within the managing unit 201 can be stored in the computer-readable medium / memory and / or configured as hardware within the baseband unit 210. Wherein, the receiving unit 201 and the transmitting unit 203 can be referred to as a transceiving unit.

[0408] When the communication apparatus 20 is configured to implement the functions of the first communication device in the above method embodiments, the receiving unit 201 is configured to perform the receiving steps of the first communication device, the transmitting unit 203 is configured to perform the transmitting steps of the first communication device, and the managing unit 202 is configured to perform the processing steps of the first communication device.

[0409] Exemplarily, when the communication apparatus 20 is configured to implement the functions of the first communication device in the above method embodiments. The managing unit 202 is configured to generate a first signal. The transmitting unit 203 is configured to transmit the first signal to a second communication device on a first time-frequency resource, wherein the first communication device supports a first communication protocol, the second communication device supports a second communication protocol, the first communication protocol is a cellular communication protocol, and the second communication protocol is a wireless local area network protocol; or the first communication protocol is a wireless local area network communication protocol, and the second communication protocol is a cellular communication protocol, the first time-frequency resource includes a first frequency domain resource, a bandwidth of the first frequency domain resource is N times of a first SCS, the bandwidth of the first frequency domain resource covers at least one second SCS, the first SCS corresponds to the first communication protocol, the second SCS corresponds to the second communication protocol, and N is a positive integer.

[0410] For example, when the apparatus 20 is configured to perform the method in FIG. 4, the receiving unit 201 can be configured to perform the step of receiving information in the method; the receiving unit 201 can be configured to perform the step of receiving information in the method; the sending unit 203 can be configured to perform the step of sending information in the method, such as S220; the management unit 202 can be configured to perform the step of processing in the method, such as S210; when the communication apparatus 20 is configured to implement the function of the second communication device in each of the above method embodiments, the receiving unit 201 is configured to perform the receiving step of the first communication device, the sending unit 203 is configured to perform the sending step of the second communication device, and the management unit 202 is configured to perform the processing step of the second communication device.

[0411] For example, when the apparatus 20 is configured to implement the function of the second communication device in each of the above method embodiments. The receiving unit 201 is configured to receive a first signal from a first communication device on a first time-frequency resource. The management unit 202 is configured to parse the first signal, wherein the first communication device supports a first communication protocol, the second communication device supports a second communication protocol, the first communication protocol is a cellular communication protocol, and the second communication protocol is a wireless local area network protocol; or the first communication protocol is a wireless local area network communication protocol, and the second communication protocol is a cellular communication protocol, the first time-frequency resource includes a first frequency domain resource, the bandwidth of the first frequency domain resource is N times of a first subcarrier spacing SCS, the bandwidth of the first frequency domain resource covers at least one second SCS, the first SCS corresponds to the first communication protocol, the second SCS corresponds to the second communication protocol, and N is a positive integer.

[0412] For example, when the apparatus 20 is configured to perform the method in FIG. 4, the receiving unit 201 can be configured to perform the step of receiving information in the method, such as step S220; the sending unit 203 can be configured to perform the step of sending information in the method; and the management unit 202 can be configured to perform the step of processing in the method, such as step S230.

[0413] For more detailed description of the receiving unit 201, the management unit 202, and the sending unit 203, please refer to the related description in the above method embodiments, which will not be repeated here.

[0414] As described above with respect to the communication apparatus shown in FIG. 16, a chip system can be included in the communication apparatus. Unless otherwise specified, the above-mentioned “second communication device” can refer to the second communication device itself, or can refer to an apparatus capable of supporting the first communication device to implement its function. Alternatively, the second communication device can be an access network device; or the second communication device can be a chip system in an access network device.

[0415] In addition, the first communication device can refer to the first communication device itself, or can refer to an apparatus capable of supporting the first communication device to realize its functions, unless otherwise specified. Alternatively, the first communication device can be a terminal device; or the first communication device can be a chip system in the terminal device.

[0416] By way of example and not limitation, the chip system in the present application is shown in FIG. 18, which is a schematic block diagram of a chip system 30 provided by an embodiment of the present application. The chip system includes but is not limited to a modem chip, also known as a baseband chip, or a system on chip (SoC) chip or a system in package (SIP) chip containing a modem core.

[0417] As can be seen from FIG. 18, the chip system (or also referred to as a processing system) includes a processor 310, a memory 320, and an input / output interface 330.

[0418] The processor 310 can be a processing circuit (including at least one processor, such as the processor 1 and the processor 2 shown in FIG. 18) in the chip system. The processor 310 can be coupled to the memory 320 to call instructions in the memory 320, so that the chip system can realize the methods and functions of the embodiments of the present application. The input / output interface 330 can be an input / output circuit in the chip system, which outputs the processed information of the chip system or inputs the data or signaling information to be processed into the chip system for processing.

[0419] As an example, the chip system is used to realize the operations performed by the first communication device or the second communication device in the above various method embodiments.

[0420] For example, the processor 310 is used to realize the processing-related operations performed by the first communication device or the second communication device in the above method embodiments, which can be specifically referred to the description in the foregoing embodiments, and perform, for example, step S210 or S230 shown in FIG. 2; the input / output interface 330 is used to realize the sending and / or receiving-related operations performed by the first communication device or the second communication device in the above method embodiments, which can be specifically referred to the description in the foregoing embodiments, and perform, for example, step S220 shown in FIG. 2.

[0421] By way of example and not limitation, the chip system in the present application is shown in FIG. 19, which is a schematic block diagram of a chip system 40 provided by an embodiment of the present application.

[0422] As can be seen from FIG. 19, the chip system (or can also be referred to as a processing system) includes an input / output interface 410 and a logic circuit 420. The input / output interface 410 can be an input / output circuit in the chip system, and outputs information processed by the chip system or inputs data or signaling information to be processed by the chip system for processing. For details, refer to the description in the foregoing embodiments, and perform, for example, step S220 shown in FIG. 2. The logic circuit 420 is configured to perform the communication method described above. For details, refer to the description in the foregoing embodiments, and perform, for example, step S210 or S230 shown in FIG. 2.

[0423] As an option, the chip system is configured to implement the operations performed by the first communication device or the second communication device in the various method embodiments described above.

[0424] For example, the logic circuit 420 is configured to implement the processing-related operations performed by the first communication device or the second communication device in the method embodiments described above; and the input / output interface 410 is configured to implement the sending and / or receiving-related operations performed by the first communication device or the second communication device in the method embodiments described above.

[0425] The embodiments of the present application further provide a computer readable storage medium, which stores computer instructions for implementing the method performed by the device in the method embodiments described above.

[0426] For example, the computer program is executed by a computer, so that the computer can implement the method performed by the terminal device or the network device in the method embodiments described above.

[0427] The embodiments of the present application further provide a computer program product, which includes instructions, and the instructions are executed by a computer to implement the method performed by the terminal device or the network device in the method embodiments described above.

[0428] The embodiments of the present application further provide a communication system, which includes the terminal device and the network device described above.

[0429] The explanations and beneficial effects of the related contents in any of the apparatuses described above can refer to the corresponding method embodiments provided above, and will not be described herein again.

[0430] Those skilled in the art can understand that the units and algorithm steps of the examples described in combination with the embodiments disclosed herein can be realized in electronic hardware or a combination of computer software and electronic hardware. Whether the functions are realized in hardware or software depends on the specific application and design constraints of the technical solutions. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of the present application.

[0431] Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working process of the system, device and unit described above can refer to the corresponding process in the foregoing method embodiments, which will not be repeated here.

[0432] In several embodiments provided in the present application, it should be understood that the disclosed system, device and method can be implemented in other ways. For example, the device embodiments described above are merely schematic, for example, the division of the units is only a logical function division, and actual implementation can have another division manner, for example, a plurality of units or components can be combined or integrated into another system, or some features can be ignored or not executed. In addition, the coupling or direct coupling or communication connection between the units or components shown or discussed can be indirect coupling or communication connection through some interfaces, devices or units, which can be electrical, mechanical or other forms.

[0433] The units described as separate components can or can not be physically separated, and the components shown as units can or can not be physical units, which can be located in one place or distributed on a plurality of network units. Part or all of the units can be selected according to actual needs to achieve the purpose of the embodiment scheme.

[0434] In addition, the functional units in each embodiment of the present application can be integrated in one processing unit, or each unit can be physically present separately, or two or more units can be integrated in one unit.

[0435] If the functions are realized in the form of software function units and sold or used as independent products, they can be stored in a computer readable storage medium. Based on this understanding, the technical solutions of the present application or the essential part or part of the technical solutions that make contributions to the prior art can be embodied in the form of a software product. The computer software product is stored in a storage medium and includes a plurality of instructions for causing a computer device (which can be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the method described in each embodiment of the present application. The foregoing storage medium includes: a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk, and various program code storage media.

Claims

1. A communication method characterized by comprising: The method is applied to a first communication device, and the method comprises: generating a first signal; sending the first signal to a second communication device on a first time-frequency resource, wherein the first communication device supports a first communication protocol, and the second communication device supports a second communication protocol, the first communication protocol is a cellular communication protocol, and the second communication protocol is a wireless local area network protocol; or the first communication protocol is a wireless local area network communication protocol, and the second communication protocol is a cellular communication protocol, the first time-frequency resource comprises a first frequency domain resource, a bandwidth of the first frequency domain resource is N times of a first subcarrier spacing SCS, the bandwidth of the first frequency domain resource covers at least one second SCS, the first SCS corresponds to the first communication protocol, the second SCS corresponds to the second communication protocol, and N is a positive integer.

2. The method of claim 1, wherein, In the case where the first communication protocol is a cellular communication protocol and the second communication protocol is a wireless local area network protocol, the value of N includes any one of the following: 3, 6, 11, 21, or 42.

3. The method according to claim 1 or 2, characterized in that, In the case where the first communication protocol is a wireless local area network protocol and the second communication protocol is a cellular communication protocol, the value of N includes 1 or 2.

4. The method according to any one of claims 1 to 3, characterized in that, the value of N satisfies the following condition: wherein represents rounding up, Δf1 represents the first SCS, and Δf2 represents the second SCS.

5. The method according to any one of claims 1 to 4, characterized in that, The sending of the first signal to the second communication device on the first time-frequency resource comprises: sending N identical first sub-signals on N first subcarriers corresponding to the first time-frequency resource, the first signal being composed of the N first sub-signals, wherein the N first subcarriers correspond to the N first sub-signals one by one.

6. The method according to any one of claims 1 to 5, characterized in that, An identity of the N first subcarriers corresponding to the first time-frequency resource and an identity of a second subcarrier corresponding to the at least one second SCS satisfy a first correspondence relationship.

7. The method according to any one of claims 1 to 6, characterized in that, The bandwidth of the first frequency domain resource further covers a guard subcarrier spacing, wherein the guard subcarrier spacing includes a part of at least one third subcarrier, or a part of at least one fourth subcarrier and at least one fifth subcarrier, and the guard subcarrier spacing corresponds to the second communication protocol.

8. The method according to any one of claims 1 to 7, characterized in that, The first time-frequency resource comprises a first time domain resource, the first time domain resource corresponds to a first symbol set, and the first symbol set comprises at least one first symbol, each first symbol corresponds to at least one second symbol, or the at least one first symbol corresponds to one second symbol, wherein the first symbol corresponds to the first communication protocol, and the second symbol corresponds to the second communication protocol.

9. The method of claim 8, wherein, A qth second symbol in the at least one second symbol and a number p of a first symbol corresponding to the qth second symbol satisfy the following relationship: p=floor((qT2) / T1) wherein floor represents rounding down, T1 represents a symbol length defined by the first communication protocol, T2 represents a symbol length defined by the second communication protocol, and p and q are non-negative integers.

10. The method of claim 8, wherein, A q1th first symbol in the at least one first symbol and a number p1 of a second symbol corresponding to the q1th first symbol satisfy the following relationship: p1=floor((q1T1) / T2) wherein floor denotes floor, T1 denotes a symbol length defined by the first communication protocol, T2 denotes a symbol length defined by the second communication protocol, p1 and q1 are non-negative integers.

11. The method according to any one of claims 8 to 10, characterized in that, If one of the at least one first symbol corresponds to a plurality of the second symbols, the first symbol is a first guard interval symbol, otherwise the first symbol is a first valid symbol. Or, If one of the at least one second symbol corresponds to a plurality of the first symbols, the second symbol is a second guard interval symbol, otherwise the second symbol is a second valid symbol.

12. The method of claim 11, wherein, In the case where the first SCS and the second SCS are given, the identity of the at least one first valid symbol and the identity of the at least one second valid symbol satisfy a second correspondence relationship, wherein the second SCS corresponds to the second communication protocol.

13. The method according to any one of claims 1 to 12, characterized in that, The time-frequency resource set to which the first time-frequency resource belongs is an intersection of a first frequency band range and a second frequency band range, the first frequency band range corresponds to the first communication protocol, and the second frequency band range corresponds to the second communication protocol.

14. A communication method, comprising: The method is applied to a second communication device, and the method comprises: receiving a first signal from a first communication device on a first time-frequency resource; parsing the first signal, wherein the first communication device supports a first communication protocol, the second communication device supports a second communication protocol, the first communication protocol is a cellular communication protocol, and the second communication protocol is a wireless local area network protocol; or, the first communication protocol is a wireless local area network communication protocol, and the second communication protocol is a cellular communication protocol, The first time-frequency resource includes a first frequency domain resource, the bandwidth of the first frequency domain resource is N times of a first subcarrier spacing SCS, the bandwidth of the first frequency domain resource covers at least one second SCS, the first SCS corresponds to the first communication protocol, the second SCS corresponds to the second communication protocol, and N is a positive integer.

15. The method of claim 14, wherein, In the case where the first communication protocol is a cellular communication protocol and the second communication protocol is a wireless local area network protocol, the value of N includes any of the following: 3, 6, 11, 21, or 42.

16. The method of claim 14, wherein, In the case where the first communication protocol is a wireless local area network protocol and the second communication protocol is a cellular communication protocol, the value of N includes 1 or 2.

17. The method according to any one of claims 14 to 16, characterized in that, the value of N satisfies the following condition: wherein ceiling denotes ceiling, Δf1 denotes the first SCS, and Δf2 denotes the second SCS.

18. The method according to any one of claims 14 to 17, characterized in that, The identity of the N first subcarriers corresponding to the first time-frequency resource and the identity of the second subcarriers corresponding to the at least one second SCS satisfy a first correspondence relationship.

19. The method according to any one of claims 14 to 18, characterized in that, The bandwidth of the first frequency domain resource also covers a guard subcarrier spacing, The method further comprises: determining that a second signal received on the subcarriers included in the guard subcarrier spacing is invalid, wherein the second signal is a partial signal related to the first signal.

20. The method of any one of claims 14 to 19, wherein, The first time-frequency resource includes a first time domain resource, the first time domain resource corresponds to a first symbol set, and the first symbol set includes at least one first symbol, Each of the first symbols corresponds to at least one second symbol, or, at least one first symbol corresponds to one second symbol, The first symbol corresponds to the first communication protocol, and the second symbol corresponds to the second communication protocol.

21. The method of claim 20, wherein, The qth second symbol in the at least one second symbol corresponds to the first symbol with the number p, and the number p satisfies the following relationship: p=floor((qT2) / T1) Wherein, floor represents rounding down, T1 represents the symbol length defined by the first communication protocol, T2 represents the symbol length defined by the second communication protocol, and p and q are non-negative integers.

22. The method of claim 20, wherein, The q1th first symbol in the at least one first symbol corresponds to the second symbol with the number p1, and the number p1 satisfies the following relationship: p1=floor((q1T1) / T2) Wherein, floor represents rounding down, T1 represents the symbol length defined by the first communication protocol, T2 represents the symbol length defined by the second communication protocol, and p1 and q1 are non-negative integers.

23. The method of any one of claims 20-22, wherein, If one of the first symbols in the at least one first symbol corresponds to multiple second symbols, the first symbol is a first guard interval symbol, otherwise the first symbol is a first valid symbol; Or, If one of the second symbols in the at least one second symbol corresponds to multiple first symbols, the second symbol is a second guard interval symbol, otherwise the second symbol is a second valid symbol.

24. The method of claim 23, wherein, In the case where the first SCS and the second SCS are given, the identification of at least one first valid symbol and the identification of at least one second valid symbol satisfy a second correspondence relationship, The second SCS corresponds to the second communication protocol.

25. A communications device, characterized by The communication device comprises a module for executing the method of any one of claims 1 to 13; or, the communication device is used for executing the method of any one of claims 14 to 24.

26. A communications device, characterized by The processor is coupled with the memory, and the memory is used to store computer programs or instructions, and the processor is used to execute the computer programs or instructions in the memory, so that the method of any one of claims 1 to 13 is executed, or the method of any one of claims 14 to 24 is executed.

27. A computer-readable storage medium, characterized in that, The computer readable storage medium stores computer programs or instructions, when the computer programs or instructions run on the computer, So that the method of any one of claims 1 to 13 is executed; or, So that the method of any one of claims 14 to 24 is executed.

28. A chip system, characterized by The processor is used to call and run computer programs from the memory, So that the method of any one of claims 1 to 13 is executed; Or, So that the method of any one of claims 14 to 24 is executed.

29. A computer program product, characterised in that, When the computer program product runs on the computer, So that the method of any one of claims 1 to 13 is executed; or, So that the method of any one of claims 14 to 24 is executed.

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