CN113922937B

CN113922937B - Wireless signal transmission method and device

Info

Publication number: CN113922937B
Application number: CN202111021483.XA
Authority: CN
Inventors: 闫志宇; 王志勤; 杜滢; 宋国超; 刘慧�; 焦慧颖
Original assignee: China Academy of Information and Communications Technology CAICT
Current assignee: China Academy of Information and Communications Technology CAICT
Priority date: 2021-09-01
Filing date: 2021-09-01
Publication date: 2023-04-28
Anticipated expiration: 2041-09-01
Also published as: CN113922937A; WO2023029339A1

Abstract

The application discloses a wireless signal transmission method, which comprises the following steps: representing a position of a first resource by using first configuration information, wherein the first resource comprises a first time domain range and a first frequency domain range; transmitting a first signal with a first resource and a second signal with a second resource, the second resource comprising a second time domain range and a second frequency domain range; a frequency domain difference exists between the first resource and the second resource; the first signal is a physical signal in a cellular mobile communications network; the second signal is generated by shifting the first signal by the frequency domain difference and modulating the second signal by target information. The application also includes an apparatus for applying the method. The resource allocation problem of the back scattering signal is especially suitable for the cellular wireless mobile communication system.

Description

Wireless signal transmission method and device

Technical Field

The present disclosure relates to the field of wireless communications technologies, and in particular, to a wireless signal transmission method and apparatus.

Background

Backscatter (backscattering) communication modulates its own data information onto electromagnetic waves of the surrounding environment. Since active generation of radio frequency signals is not required, a large number of high power consumption active devices can be avoided. The backscatter communication device may not reserve too much power for the transmitted signal. In addition, the transmission power of the backscatter communication is lower, and the energy in the wireless propagation environment can be stored into a power supply link of the energy collection circuit, so that the power consumption requirement of the communication is expected to be further reduced, and even the battery-free communication is expected to be realized. Because of the characteristics of low power consumption, low cost and large connection, the back scattering communication is expected to become an important technical means for enabling everything to mutually fuse, and has wide prospect in supporting the deep application of IOT (Internet of Things ).

The back scattering communication is enabled by the cellular mobile communication network, so that the application of the back scattering communication can be catalyzed, and the efficiency of the cellular mobile communication network is improved. How to design the signal resource allocation of the back scattering communication and effectively share the signal resource allocation with the resources of the cellular mobile communication network is a problem to be solved in order to realize the application of the back scattering communication and improve the efficiency of the radio spectrum resources.

Disclosure of Invention

The application provides a wireless signal transmission method and equipment, which solve the problem of resource allocation of a back scattering signal and are particularly suitable for a wireless cellular mobile communication system.

In a first aspect, the present application proposes a wireless signal transmission method, including the steps of:

representing a position of a first resource by using first configuration information, wherein the first resource comprises a first time domain range and a first frequency domain range;

transmitting a first signal with a first resource and a second signal with a second resource, the second resource comprising a second time domain range and a second frequency domain range;

a frequency domain difference exists between the first resource and the second resource;

the first signal is a physical signal in a cellular mobile communications network; the second signal is generated by shifting the first signal by the frequency domain difference and modulating the second signal by target information.

Further, the method also comprises the following steps:

indicating a location of a third resource with third configuration information, the third resource comprising a third time domain range and a third frequency domain range;

a third signal transmitted via a third resource is converted into energy for storage;

the third frequency range is orthogonal to the first frequency range and/or the third time domain range is orthogonal to the first time domain range;

the third frequency range is orthogonal to the second frequency range and/or the third time domain range is orthogonal to the second time domain range.

Preferably, the first configuration information includes identification information of the receiving device, and/or the first configuration information is broadcast or multicast information.

Preferably, the frequency domain difference between the second resource and the first resource is indicated with the second configuration information.

Preferably, the first signal comprises at least one of PSS/SSS/CSI-RS/PT-RS/DMRS signals in a cellular mobile communications network.

Preferably, the modulation mode comprises at least one of the following: on-off keying, frequency shift keying, QAM.

Preferably, the first frequency domain range is located in a downlink carrier frequency band, or the first frequency domain range is located in a downlink bandwidth part; the second frequency domain range is located in an uplink carrier frequency band, or the second frequency domain range is located in an uplink bandwidth portion.

Preferably, the first signal is an OFDM signal, the first time domain range includes L OFDM symbols, the first frequency domain range includes K subcarriers, L is greater than or equal to 1, and K is greater than or equal to 1.

Preferably, the target information is from a first terminal device; the first signal comprises traffic data or signaling transmitted to the second terminal device.

Further preferably, the first signal includes information of the second terminal device, and the modulation mode is on-off keying; alternatively, the first signal does not include information of the second terminal device, and the modulation mode is QAM.

Preferably, the method according to any embodiment of the first aspect of the present application, for the first device, comprises the following steps:

transmitting the first configuration information;

transmitting the first signal in the first resource;

and receiving and demodulating the second signal in the second resource to obtain the target information.

Preferably, before receiving the second signal, the method further comprises the steps of: the first equipment determines second configuration information according to the second resource and sends the second configuration information; or, obtaining second configuration information, and determining the second resource according to the second configuration information.

Preferably, before receiving the second signal, the method further comprises the steps of: the first device sends modulation mode indication information for indicating a modulation mode of modulating the first signal by the target information.

Preferably, demodulating the second signal in the second resource further comprises the steps of: the first device detects the preamble information and determines time timing synchronization and/or frequency synchronization of receiving the second signal according to the detection result; the positional relationship between the resources occupied by the preamble information and the second resources is preset.

Further, the method also comprises the following steps: and the first equipment sends the confirmation information for acquiring the target information.

Further, the method also comprises the following steps: the first device sends third configuration information, and indicates the position of a third resource by the third configuration information, wherein the third resource comprises a third time domain range and a third frequency domain range; wherein the third frequency range is orthogonal to the first frequency range and/or the third time domain range is orthogonal to the first time domain range; the third frequency range is orthogonal to the second frequency range and/or the third time domain range is orthogonal to the second time domain range.

Preferably, the method according to any embodiment of the first aspect of the present application, for the second device, comprises the following steps:

receiving the first configuration information and determining the first resource;

receiving the first signal in the first resource;

and transmitting the second signal on the second resource, wherein the second signal is generated by modulating the first signal by the target information.

Preferably, before transmitting the second signal, the method further comprises the steps of: the second equipment determines second configuration information according to the second resource and sends the second configuration information; or, obtaining second configuration information, and determining the second resource according to the second configuration information.

Preferably, before the second information is sent, the method further comprises the steps of: and the second equipment acquires the modulation mode indication information and determines the modulation mode of modulating the first signal by the target information.

Preferably, the method further comprises the steps of: the second device receives third configuration information, wherein the third configuration information indicates the position of a third resource; and receiving a third signal from the third resource, converting the third signal into energy for storage, and using the energy as power supply energy of the first terminal equipment.

Preferably, the method further comprises the steps of: and the second equipment receives the synchronization information and acquires the timing synchronization and the frequency synchronization of the received signals.

Preferably, the method further comprises the steps of: and the second equipment transmits the preamble information while transmitting the second signal, wherein the position relation between the resources occupied by the preamble information and the second resources is preset.

Further, the method also comprises the following steps: and the second equipment acquires the confirmation information of the received target information.

Preferably, the wireless signal transmission method according to any one of the first aspect of the present application is used for a third device, and includes the following steps:

acquiring second configuration information, wherein the second configuration information is used for determining a second resource, and the second resource comprises Q OFDM symbols and W subcarriers, Q is more than or equal to 1, and W is more than or equal to 1;

acquiring scheduling indication information, wherein the scheduling indication information is used for indicating a target resource, and an intersection of the target resource and the second resource overlaps with an overlapping resource;

and transmitting information at the part of the target resource except the overlapped resource.

In a second aspect, the present application further proposes a communication device (i.e. a first device) configured to implement the method according to any one of the embodiments of the first aspect of the present application. At least one module in the communication device (first device) is configured to implement at least one of the following functions: transmitting the first configuration information; receiving or transmitting the second configuration information; transmitting a first signal in a first resource; and receiving a second signal in the second resource, and demodulating to obtain the target information.

In a third aspect, the present application further proposes a communication device (i.e. a second device) configured to implement the method according to any one of the embodiments of the first aspect of the present application. At least one module in the communication device (second device) is configured to implement at least one of the following functions: receiving the first configuration information; receiving or transmitting the second configuration information; receiving a first signal in a first resource; and moving the first signal from the first resource to the second resource, and generating a second signal after modulating the second signal by the target information.

In a fourth aspect, the present application further proposes a communication device (i.e. a third device) configured to implement the method according to any one of the embodiments of the first aspect of the present application. At least one module in the communication device (third device) is configured to implement at least one of the following functions: acquiring second configuration information, wherein the second configuration information is used for determining second resources, and the second resources comprise Q OFDM symbols and W subcarriers; acquiring scheduling indication information, wherein the scheduling indication information is used for indicating a target resource, and an intersection of the target resource and the second resource overlaps with an overlapping resource; and transmitting information at the part of the target resource except the overlapped resource.

In a fifth aspect, the present application further proposes a mobile communication device comprising: memory, a processor and a computer program stored on the memory and executable on the processor, which when executed by the processor performs the steps of the method according to any of the embodiments of the present application.

In a sixth aspect, the present application also proposes a computer readable medium having stored thereon a computer program which, when executed by a processor, implements the steps of the method according to any of the embodiments of the present application.

In a seventh aspect, the present application further proposes a mobile communication system, comprising at least 1 first device as described in embodiments of the present application and/or at least 1 second or third device as described in embodiments of the present application.

The above-mentioned at least one technical scheme that this application embodiment adopted can reach following beneficial effect:

the method is characterized in that the signal of the back scattering communication is carried in the wireless resource of the cellular mobile communication network, and an effective signal multiplexing and resource sharing mode between the base equipment and the back scattering communication equipment in the cellular mobile communication network is designed, so that the method is an effective solution for realizing the application of the back scattering communication and improving the efficiency of wireless spectrum resources.

Allocating a first resource in the cellular mobile communication network to a modulated carrier of a data communication link for backscatter communication, the first resource consisting of resources in a first time domain range and a first frequency domain range, enables the backscatter communication to effectively share the resource with the cellular mobile communication network.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiments of the application and together with the description serve to explain the application and do not constitute an undue limitation to the application. In the drawings:

FIG. 1 is a flow chart of an embodiment of the method of the present application;

FIG. 2 is a schematic diagram of a relationship between a first resource and a second resource;

FIG. 3 is a schematic diagram of a second signal generation process;

FIG. 4 is a schematic diagram of an electrical circuit for implementing backscatter communications in accordance with the method of the present application;

fig. 5 is an example of an application scenario of the present application;

FIG. 6 is a flow chart of an embodiment of a method of the present application for a first device;

FIG. 7 is a flow chart of an embodiment of a method of the present application for a second device;

FIG. 8 is a flow chart of an embodiment of a method of the present application for a third device;

FIG. 9 is a schematic diagram of a first device embodiment;

FIG. 10 is a schematic diagram of a second device embodiment;

FIG. 11 is a schematic diagram of a third device embodiment;

fig. 12 is a schematic structural diagram of a network device according to an embodiment of the present invention;

fig. 13 is a schematic structural diagram of a terminal device according to an embodiment of the present invention.

Detailed Description

For the purposes, technical solutions and advantages of the present application, the technical solutions of the present application will be clearly and completely described below with reference to specific embodiments of the present application and corresponding drawings. It will be apparent that the described embodiments are only some, but not all, of the embodiments of the present application. All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the present disclosure, are within the scope of the present disclosure.

The following describes in detail the technical solutions provided by the embodiments of the present application with reference to the accompanying drawings.

FIG. 1 is a flow chart of an embodiment of the method of the present application.

The application provides a wireless signal transmission method, which comprises the following steps:

step 101, representing the position of a first resource by using first configuration information, wherein the first resource comprises a first time domain range and a first frequency domain range;

Preferably, the frequency domain difference Δb between the second resource and the first resource is indicated with the second configuration information. The frequency domain difference Δb may be at the carrier or subcarrier level in the mobile communication system. It should be noted that, the indication of the second configuration information to the second resource may be indirect, for example, the second configuration information is Δb, and the second resource is represented by deduction. Or the second configuration information is not present, Δb is fixed to 20MHZ or 50MHZ within the system, so in some embodiments the second configuration information is not necessary.

For example, in order to efficiently share resources with a cellular mobile communication network, the cellular mobile communication network allocates first resources for a data communication link of a backscatter communication, the first resources consisting of resources of a first time domain range and a first frequency domain range. The first frequency domain range includes resources of one or more OFDM symbol subcarriers, which are contiguous or discrete. The first time domain range includes a duration of one or more OFDM symbols.

The receiving device herein refers to a device that receives first configuration information, for example, when the first configuration information is transmitted from the first device to the second device, the second device is the receiving device. For another example, the first terminal device is a receiving device when the first configuration information is sent by the network device to the first terminal device.

Step 102, transmitting a first signal with a first resource, the first signal being a physical signal in a cellular mobile communication network;

Step 103, transmitting a second signal by using a second resource, wherein the second resource comprises a second time domain range and a second frequency domain range; a frequency domain difference exists between the first resource and the second resource; the second signal is generated by shifting the first signal according to the frequency domain difference and modulating the first signal by target information;

In steps 101 to 103, when the device that receives the first signal and transmits the second signal is a terminal device, the target information is from the first terminal device.

For example, the first signal is a downstream signal and the second signal is an upstream signal; for another example, the first signal is a downlink signal and the second signal is a side link communication signal; for another example, the first signal and the second signal are both side link communication signals (or other D2D system signals). The first terminal equipment receives the first signal, modulates target information, converts frequency to a second resource and then sends the target information, wherein the target information is generated in the first terminal equipment and comprises a service or signaling sent by the first terminal equipment outwards. The first terminal device uses the first signal as a carrier, only concerns the first resource position where the first signal is located, and does not need to identify whether other information is carried in the first signal.

It should also be noted that the first signal may further include service data or signaling transmitted to the second terminal device. When the first signal is a physical signal in a cellular mobile communication system, it is necessary to include traffic or signaling destined for a specific receiving device, and when the device receiving the first signal is a terminal device, the second terminal device can correctly recognize the traffic or signaling included in the first signal.

It should be noted that only the network device that transmits the first signal is aware of: the first signal carries downstream information for the second terminal device, and the first signal is used as a modulated carrier for the first terminal device. The first terminal device is unaware and not necessarily aware that the first signal is a downlink signal to the second terminal device; the second terminal device is unaware and not necessarily aware that the first signal is used by the first terminal device as a modulated carrier.

Further, embodiments of the first aspect of the present application may further comprise the steps of:

step 104, indicating the position of a third resource by using third configuration information, wherein the third resource comprises a third time domain range and a third frequency domain range; a third signal transmitted via a third resource is converted into energy for storage;

In particular, the device receiving the third signal is the first terminal device.

FIG. 2 is a schematic diagram of a relationship between a first resource and a second resource.

In the scheme of the application, the first signal occupies at least one part of the first resource; the second signal uses at least a portion of the second resource. The frequency domain difference of the second resource and the first resource is Δb. After the device receiving the first signal shifts the first signal by delta B, the device modulates the target information onto the first signal after frequency shift to generate a second signal.

The first resource or the second resource is formed, and the Orthogonal Frequency Division Multiplexing (OFDM) technology is widely applied to the cellular mobile communication network and the future evolution network. One resource element RE represents a resource occupying one OFDM symbol in the time domain and one subcarrier in the frequency domain. In an OFDM system, each subcarrier can be modulated. Taking the NR system as an example, most physical channels in the NR system are allocated in units of one RB in the frequency domain and are continuously allocated in the time domain for a plurality of symbols in one slot. In the frequency domain, by

The successive sub-carriers form a resource block RB. In terms of time domain, one frame is 10ms in length, and includes 10 subframes. The time slot number of each subframe is determined according to the partial carrier bandwidth configuration, and the OFDM symbol number of each subframe

Wherein->

Representing determining the number of symbols per sub-frame according to the sub-carrier bandwidth configuration mu,/for each sub-frame>

Representing the number of symbols corresponding to each slot.

Fig. 3 is a schematic diagram of a second signal generation process.

The device receiving the first signal (e.g., the first terminal device) modulates the first signal it receives at the first resource with the target information and transmits a modulated second signal, including both modulation and frequency shifting.

The modulation process can use frequency shift keying FSK, on-off keying, QAM, combination of FSK and QAM and other modulation modes to carry own data information. In FSK modulation, the device carries information by selecting different keying frequencies. For example, the frequency shift Δf represents the device transmitting information bit 1, and the frequency shift 2Δf represents the device transmitting information bit 0. In the on-off keying modulation mode, modulating the signal amplitude on the carrier frequency to 0 represents that the device transmits information bit 0, and modulating the signal amplitude on the carrier frequency to be greater than the set threshold represents that the device transmits information bit 1. Alternatively, the device carries information by changing the amplitude or phase of the reflected signal on a frequency shift keying basis. For example, after shifting the direction scatter signal by Δf, the tag phase-flips the reflected signal by 0, indicating that information bit 00 was transmitted; phase flip pi/2, representing the transmitted information bit 01; phase flip pi, representing the transmitted information bit 10; the phase flip 3 pi/2 indicates the transmitted information bit 11.

The frequency shift process refers to moving a signal from a first resource to a second resource. When the frequency domain difference between the second resource and the first resource is Δb, simply stated, the modulated first signal may be shifted by Δb to generate the second signal. Further, if the first signal occupies a portion of the first resource (e.g., an RE), the first signal may be moved from the portion of the first resource to the portion of the second resource.

It should be noted that if the first frequency domain range is composed of K subcarriers in the cellular mobile communication system, K is greater than or equal to 1, and the target information may be modulated onto signals of the K subcarriers according to a preset sequence.

If the first signal is a downlink signal of the cellular mobile communication network. The first signal is not only a carrier wave used by the first terminal device to modulate the target information, but also carries a downlink signal sent to the second terminal device in the cellular mobile communication system. In this case, the first terminal device preferably modulates the target information by on-off keying, so that the receiving device of the second signal can conveniently demodulate the second signal to obtain the target information. If the first signal does not carry downlink information of the cellular mobile communication network, the first terminal device may modulate the target information on the first signal in any one of "on-off keying modulation", "frequency shift keying modulation" and "QAM modulation".

It should be noted that, the sequence of the two processes of modulating and frequency shifting shown in fig. 3 is not limited, and the device for receiving the first signal may modulate the target information onto the first signal after frequency shifting Δb to generate the second signal; alternatively, the device receiving the first signal may modulate the target information onto the frequency-shifted first signal, shift the modulated signal by Δb, and generate the second signal.

Fig. 4 is a schematic diagram of an electrical circuit for implementing backscatter communications in accordance with the method of the present application.

For example, a first terminal device implementing backscatter communications includes a data communication and an energy harvesting link. In a data communication link, a tag circuit in a first terminal device receives an incoming signal from the first device, modulates its own information into the received incoming signal and transmits a backscattered signal. The modulation mode of the backscattering can be FSK, QAM, or a combination of FSK and QAM, etc. In the energy harvesting link, the tag circuit of the first terminal device receives the radio frequency signal and stores the harvested energy in the power supply link. In the above process, the incident signal of the tag circuit is a first signal occupying a first resource, a third signal occupying a third resource, and the scattered signal is a second signal occupying a second resource. In contrast to the simple passive tag circuit, in the solution of the present application, at least one of the first resource, the second resource, and the third resource is determined by a signaling procedure, where the first signal and the second signal occupy different resources, and the first signal and/or the third signal multiplexes a physical signal sent to the second terminal device in the cellular mobile communication system.

Fig. 5 is an example of an application scenario of the present application scenario.

According to the scheme, partial resources in the cellular mobile communication network are pre-allocated to the data communication link of the back scattering communication equipment, so that the two communication systems can be ensured to share the wireless spectrum resources. What is meant in cellular mobile communication networks is a system that communicates via a pre-set radio access technology (Radio Access Technology, RAT). The cellular mobile communication is a communication mode adopting a cellular wireless networking mode and connected between a terminal and network equipment through a wireless channel. Cellular mobile communication services are services such as voice, data, video and image, which are typically provided through a cellular mobile communication network composed of base station subsystems and mobile switching subsystems. For example, cellular mobile communication systems include IMT-Advanced (4G), IMT2020 (5G), IMT2030 (6G), WLAN, etc., as well as systems based on future evolution of RAT technologies. Preferably, the cellular mobile communication system described herein is a system using an OFDM signal, and it is understood that the physical signal described herein may be a RAT signal of the cellular mobile communication system, or the physical signal may refer to an air interface signal in the cellular mobile communication network, which is communicated according to a preset interface protocol, and is used as a modulated carrier after being received in its entirety or a part thereof.

In the description of the present application, the communication device is simply referred to as a first device or a second device, wherein at least one device may be a backscatter communication device, comprising for example a backscatter tag circuit, a smart reflective surface (Intelligent Reflecting Surface, IRS) or the like. Meanwhile, the backscatter communication device may be a type of mobile terminal, i.e. the first terminal device described above. The original terminal device in the cellular mobile communication network is the second terminal device (or the third device). When the first device or the second device is used as the first terminal device, the wireless interface protocol for communication with the network device is different from the interface protocol for communication with the network device by the second terminal device. For example, in fig. 5, the first signal is sent by the network device to the first terminal device and the second terminal device, where the second signal is a signal generated by the first terminal device using the first signal as a carrier, and the fourth signal is a response from the second terminal device to the first signal.

Fig. 6 is a flow chart of an embodiment of a method of the present application for a first device.

The method according to any one of the embodiments of the first aspect of the present application, for a first device, comprises at least a part of the following steps 201 to 207:

Step 201, the first device sends the first configuration information.

Transmitting first configuration information, wherein the configuration information is used for indicating first resources, and the first resources consist of resources in a first time domain range and a first frequency domain range; the first configuration information includes identification information of the second device, or the first configuration information is included in broadcast or multicast information.

Step 202, the first device sends the first signal in the first resource.

For example, when the first signal is a downlink signal of the cellular mobile communication network (e.g., the first signal is at least one of PSS/SSS/CSI-RS/PT-RS/DMRS in the cellular mobile communication network), the first device is a network device.

For another example, when the first signal is an uplink signal or a side link communication signal, the first device is a terminal device.

Optionally, the following step 203 is further included before receiving the second signal.

Step 203, the first device determines second configuration information according to the second resource, and sends the second configuration information; or, obtaining second configuration information, and determining the second resource according to the second configuration information.

For example, the second configuration information indicates a frequency domain difference of the second signal relative to the first signal.

Here, two cases are included: in the first case, the first device sets the second resource, and the second device obtains information of the second resource by sending the second configuration information. In the second case, the second device sets the second resource, and the first device obtains the information of the second resource by sending the second configuration information. Under the two conditions, when the second equipment is the first mobile terminal, the second equipment occupies the second resource to send a second signal; when the other device obtains information of the second resource, no signal is transmitted on the second resource in order to avoid interference.

Optionally, the following step 204 is also included before receiving the second signal.

Step 204, the first device sends modulation mode indication information, which is used for indicating the modulation mode of the target information for modulating the first signal.

Step 205, receiving and demodulating the second signal in the second resource, so as to obtain the target information.

The first signal is modulated with the target information to generate the second signal, and preferably, the modulation mode is at least one of on-off keying modulation, frequency shift keying modulation and QAM modulation.

Step 206, the first device sends the confirmation information of the obtained target information.

Optionally, the method further comprises the following steps:

step 207, the first device sends third configuration information, and indicates a position of a third resource by using the third configuration information, where the third resource includes a third time domain range and a third frequency domain range; wherein the third frequency range is orthogonal to the first frequency range and/or the third time domain range is orthogonal to the first time domain range; the third frequency range is orthogonal to the second frequency range and/or the third time domain range is orthogonal to the second time domain range. And the third resource is used for a wireless charging function. The step 207 and the other steps have no sequence relationship.

Fig. 7 is a flow chart of an embodiment of a method of the present application for a second device.

The method according to any embodiment of the first aspect of the present application, for the second device, includes the following steps:

step 301, the second device receives the first configuration information and determines the first resource.

And acquiring first configuration information, wherein the first configuration information is used for indicating first resources, and the first resources consist of resources in a first time domain range and a first frequency domain range.

The second device obtains the first configuration information and determines the first resource. The signal transmitted on the first resource is an incident signal of the second device. The first frequency domain range includes resources of one or more OFDM symbol subcarriers, which are contiguous or discrete. The first time domain range then comprises a duration of one or more OFDM symbols.

The second device shares resources with the cellular mobile communication network in two ways, so the way of obtaining the first configuration information is two ways:

case a: the first configuration information includes identification information of the second device.

The cellular mobile communication network may identify a plurality of second devices, in which case the first configuration information acquired by one second device is for itself. The first configuration information acquired by the different second devices is independent of each other.

Accordingly, before the second device obtains the first configuration information, the second device completes a procedure of accessing the cellular mobile communication network, and the cellular mobile communication network device can identify the second device. In this way, the second device can detect the first configuration information containing the second device identification information.

Case B: the first configuration information is broadcast or multicast information

Resources in a cellular mobile communication network are shared among a plurality of backscatter devices, and the first configuration information is transmitted by broadcasting or multicasting information without distinguishing a plurality of second devices in the first configuration information. In this case, the first configuration information acquired by the plurality of second devices is the same.

Step 302, the second device receives the first signal in the first resource.

The first signal may be a physical signal of a cellular mobile communication network. Such as downlink signals, side link communication signals or other communication signals of a D2D system in a cellular mobile communication network, said second device being a terminal device. And when the first signal is an uplink signal, the second device is a network device. Preferably, the first signal is at least one of PSS/SSS/CSI-RS/PT-RS/DMRS in a cellular mobile communication network.

For example, the downlink bearer information of the cellular mobile communication network includes downlink service information, downlink reference signals, and the like. The uplink transmission of a terminal device (e.g. a second terminal device) in a cellular mobile communication network has no direct association with the received downlink information. The second terminal device transmits its own service information or reference information in an uplink manner. The first terminal device regards the first signal device as an incident signal, modulates the own target signal to the incident signal and transmits the target signal by back scattering. In a sense, the first signal is a modulated carrier of the target information of the first terminal device. In this embodiment, the first signal bears the downlink information bearer of the second terminal device and also bears the function of modulating the carrier wave by the first terminal device, so that the efficiency of radio resources can be improved, and the communication requirements of the first and second terminal devices can be met.

Preferably, the first signal is preset reference information in the cellular mobile communication network, such as PSS/SSS/CSI-RS/PT-RS/DMRS. The reference information sent by the network device may have the same preset assumption among the network device, the first terminal device and the second terminal device, so that the receiving device can conveniently detect the target information of the first node in the second signal.

Optionally, before sending the second signal, the following step 303 is further included.

Step 303, the second device receives or transmits the second configuration information.

The second equipment determines second configuration information according to the second resource and sends the second configuration information; or, obtaining second configuration information, and determining the second resource according to the second configuration information. Preferably, the second configuration information indicates a frequency shift difference of the first node.

It should be noted that two cases are included here. In the first case, the first device sets the second resource, and the second device obtains information of the second resource by sending the second configuration information. In the second case, the second device sets the second resource, and the first device obtains the information of the second resource by sending the second configuration information.

When the second device shares radio resources with the cellular mobile communication network, the first signal received in the first frequency domain range is frequency-shifted to the second frequency domain range, and the target information is modulated and then transmitted. As a receiving device for the second signal, the first device or another device needs to determine the frequency at which the second signal is located. The second device is required to transmit its own frequency domain difference to the received signal through the second configuration information. On the one hand, it is ensured that the receiving device of the second signal can detect the signal; on the other hand, interference between signals sent by other devices and the second signal can be avoided in a targeted manner. The second signal is transmitted on a second resource. As shown in fig. 2, for example, the second resource belongs to an uplink frequency band (RB of UL) of the cellular mobile communication network. The second resource occupies only the resource of the sub-carrier in the middle of one resource block in the uplink frequency band, and the uplink frequency band can be allocated to other terminal devices (such as a third device) in the cellular wireless communication system to send uplink information. Since the granularity of the second resource allocated to the second device and the granularity of the uplink resource allocated to the third device are different, fragmentation of the uplink resource may be caused, and system efficiency may be affected. For example, the granularity of the second resource allocated to the second device is a subcarrier, and the granularity of the resource allocated to the third device is RB. For example, the second resource includes frequency resources of 4 subcarriers, and the frequency resources of the 4 subcarriers belong to RB0. If the resources of other subcarriers in the RB0 cannot be used for uplink transmission of other terminal devices, the system resource efficiency is low. One possible way is to allocate the frequency resources of the 4 subcarriers to a second device (e.g., a first terminal device) while other resources of RB0 may be allocated to a third device (e.g., a second or third terminal device). The first device (e.g., a network device) may notify the third device of the second resource-related resource configuration when allocating the RB0 resource. The third device may determine that only other resources than the second resource are occupied within RB0 according to the indication. The first device may send the second resource through broadcast information, or specifically indicate the second resource to the second device or the third device allocated to include the second resource.

Optionally, before sending the second information, the following step 304 is further included.

Step 304, the second device obtains the indication information of the modulation mode, and determines the modulation mode of modulating the first signal by the target information.

Optionally, before sending the second information, the following step 305 is further included.

Step 305, the second device receives the synchronization information and acquires the timing synchronization and the frequency synchronization of the received signal.

It should be noted that, before the second device obtains the first configuration information, it needs to determine timing synchronization and/or frequency synchronization of the received information, determine a starting position of the OFDM symbol, and carrier frequency offset, and complete compensation for the frequency spectrum.

The present application is not limited with respect to the method by which the second device acquires timing and/or frequency synchronization. Optionally, the second device is a terminal device, and detects downlink synchronization information of the cellular mobile communication network to obtain timing synchronization and/or frequency synchronization. The downlink synchronization information includes, for example, at least one of a primary synchronization signal (Primary Synchronization Signal, PSS) and a secondary synchronization signal (Secondary Synchronization Signal, SSS) of the LTE system, or includes, for example, a synchronization broadcast block (Synchronization Signal/PBCH, SSB) of the NR system. The second device may also perform timing synchronization and/or frequency synchronization based on other received information in the cellular mobile communications network.

Step 306, the second device sends the second signal on the second resource, where the second signal is generated by modulating the first signal with the target information.

And modulating the first signal received by the first resource by using the target information, and transmitting the modulated second signal. And modulating the first signal received by the first resource by using target information, wherein the modulation mode is at least one of on-off keying modulation, frequency shift keying modulation or QAM modulation. The "on-off keying modulation" refers to carrying target information by modulating the amplitude of the first signal to 0 or not 0, the "frequency shift keying modulation" refers to a modulation scheme in which the frequency variation of the carrier first signal is controlled with a digital signal, and the "QAM modulation" carries target information by changing the amplitude, phase, etc. of the first signal.

For example, if the first resource is not a dedicated resource configured to the second device, but is transmitted to a plurality of second devices by broadcasting or multicasting information. The first resources acquired by the plurality of second devices are the same. Then the second device a of the plurality of second devices modulates its target information a on the first signal received by the first resource and transmits it, and the second device B of the plurality of second devices may also modulate its target information B on the first signal received by the first resource and transmit it. The signals sent by the second device a and the second device B occupy the same second resource, so that the signals sent by the second device a and the second device B interfere with each other and cannot be received correctly.

Alternatively, before the second signal is transmitted by the second device a or the second device B, the preamble sequences may be transmitted simultaneously, and if the preamble sequences of the second device a and the second device B are orthogonal, the receiving device may identify whether the received second signal corresponds to the second device a or the second device B by detecting the preamble sequences.

When the second signal is sent, the first device receiving the second signal can be assisted to determine timing synchronization and/or frequency synchronization of the second signal by sending the preamble signal at the same time, so that the detection performance of the second signal is ensured. Optionally, the time difference and the frequency difference between the preamble signal and the second signal are preset.

Step 307, the second device obtains the confirmation information that the target information is received.

After the second device sends the second signal, the second device may obtain acknowledgement information of the receiving device for the target information in the second signal. The second device point thus determines the target information that has not yet been transmitted.

Preferably, the following step 308 is also included.

Step 308, the second device receives third configuration information, where the third configuration information indicates a location of a third resource; the third resource is for wireless charging.

When the second device is the first terminal device, the second device receives the third signal from the third resource, and converts the third signal into energy for storage, and the energy is used as the power supply energy of the first terminal device. It should be noted that, there is no sequence relationship between the step 308 and other steps.

A third signal is received at a third resource that is orthogonal in time and/or frequency to the first resource and operates in an energy harvesting state.

When the energy harvesting circuit and the communication circuit do not share an antenna, energy harvesting and communication may be performed simultaneously; when the energy harvesting circuit and the communication circuit share an antenna, the energy harvesting and communication needs to be performed in a time-sharing manner. If the energy harvesting circuit and the communication circuit of the second device share an antenna, the second device does not need to transmit signals in the energy harvesting state, but rather receives radio frequency signals to harvest energy for its own power storage unit. After the second device acquires the first resource, the second device transmits the modulated second signal. A third resource that is orthogonal in time and/or frequency to the first resource and the second resource may operate in an energy harvesting state. Optionally, third configuration information needs to be received, which is used to indicate the third resource.

Fig. 8 is a flow chart of an embodiment of a method of the present application for a third device.

The wireless signal transmission method according to any one of the first aspect of the present application is used for a third device, and includes the following steps 401 to 403:

step 401, obtaining second configuration information, where the second configuration information is used to determine a second resource, where the second resource includes Q OFDM symbols and W subcarriers, Q is greater than or equal to 1, and W is greater than or equal to 1;

Step 402, obtaining scheduling indication information, where the scheduling indication information is used to indicate a target resource, and an intersection of the target resource and the second resource overlaps with an overlapping resource;

step 403, information is sent in the portion of the target resource except the overlapping resource.

The third device herein is a device other than the first terminal device in the cellular mobile communication system, and may be the second terminal device, or may be another terminal device, or may be a network device. When the first signal is a downlink signal, the first device is a network device (e.g., a gNB); when the first signal is a downlink signal or a side link communication signal, the third device is a terminal device; when the first signal is an upstream signal, the third device is a network device.

For example, the network device gNB sends the second configuration information, Δb is gNB controlled. The receiving device of the second configuration information may comprise a third terminal device in addition to the first terminal device. The first terminal equipment determines a second resource where the second signal is located by using second configuration information; and the third terminal equipment uses the second configuration information to avoid the second resource when determining to send information. At this time, the third device may function as a third terminal device.

If the first terminal device sends out the second configuration information, Δb is the capability of the first terminal device to feed back itself to the network device, in which case the gNB may still need to send the second configuration information to other terminal devices, so as to facilitate the third terminal device to receive the second configuration information.

Fig. 9 is a schematic diagram of a first device embodiment.

The embodiment of the application also provides a communication device (i.e. a first device), and at least one module in the first device is used for realizing at least one of the following functions by using the method of any one embodiment of the application: transmitting the first configuration information; receiving or transmitting the second configuration information; transmitting a first signal in a first resource; and receiving a second signal in the second resource, and demodulating to obtain the target information.

In order to implement the above technical solution, the communication device 500 provided in the present application includes a first sending module 501, a first determining module 502, and a first receiving module 503.

The first sending module is configured to send the first signal and the first configuration information, and in multiple embodiments of the present application, is further configured to send one or more of second configuration information, third configuration information, synchronization information, acknowledgement information, and modulation mode indication information.

The first determining module is used for determining first configuration information according to the first resource; in one embodiment of the present application, when the second configuration information is transmitted, determining the second configuration information according to the second resource; in another embodiment of the present application, the second resource is determined based on the second configuration information when the second configuration information is received. Further, the method is also used for determining target information according to the second signal.

The first receiving module is used for receiving the second signal; in one embodiment of the present application, the method is further used for receiving second configuration information; in another embodiment of the present application, is also used for receiving the preamble signal.

Specific methods for implementing the functions of the first sending module, the first determining module, and the first receiving module are described in the embodiments of the method for the first device in the present application, and are not described herein again.

Fig. 10 is a schematic diagram of an embodiment of a second apparatus.

The application also proposes a communication device (i.e. a second device), using the method of any of the embodiments of the application, at least one module in the second device being configured to implement at least one of the following functions: receiving the first configuration information; receiving or transmitting the second configuration information; receiving a first signal in a first resource; and moving the first signal from the first resource to the second resource, and generating a second signal after modulating the second signal by the target information.

In order to implement the above technical solution, the communication device 600 provided in the present application includes a second sending module 601, a second determining module 602, and a second receiving module 603.

The second receiving module is configured to receive the first signal and the first configuration information, and in multiple embodiments of the present application, is further configured to receive one or more of second configuration information, third configuration information, synchronization information, acknowledgement information, and modulation mode indication information. In one embodiment of the present application, the second receiving module is further configured to receive a third signal from the third resource, and convert the third signal into energy for storing, and use as power supply energy of the second device or other devices.

The second determining module is used for determining a first resource according to the first configuration information; in one embodiment of the present application, when the second configuration information is transmitted, determining the second configuration information according to the second resource; in another embodiment of the present application, the second resource is determined based on the second configuration information when the second configuration information is received.

The second transmitting module is used for transmitting the second signal; in one embodiment of the present application, the method is further used for sending second configuration information; in another embodiment of the present application, is also used to transmit the preamble.

The specific methods for implementing the functions of the second sending module, the second determining module, and the second receiving module are described in the embodiments of the method for the second device in the present application, and are not described herein again.

Fig. 11 is a schematic diagram of an embodiment of a third apparatus.

The application also proposes a communication device (i.e. a third device), using the method of any of the embodiments of the application, at least one module in the third device being configured to implement at least one of the following functions: acquiring second configuration information, wherein the second configuration information is used for determining second resources, and the second resources comprise Q OFDM symbols and W subcarriers; acquiring scheduling indication information, wherein the scheduling indication information is used for indicating a target resource, and an intersection of the target resource and the second resource overlaps with an overlapping resource; and transmitting information at the part of the target resource except the overlapped resource.

In order to implement the above technical solution, the communication device 700 provided in the present application includes a third sending module 701, a third determining module 702, and a third receiving module 703.

The third receiving module is configured to receive the second configuration information and the scheduling indication information, and in one embodiment of the present application, when used as the second terminal device, the third receiving module is further configured to receive the first information.

The third determining module is configured to determine a second resource according to the second configuration information, determine a target resource according to the scheduling indication information, and further determine an overlapping resource between the target resource and the second resource.

And the third sending module is used for sending information in the part except the overlapped resource in the target resource.

The specific methods for implementing the functions of the third sending module, the third determining module, and the third receiving module are described in the embodiments of the method for the third device in the present application, and are not described herein again.

Fig. 12 shows a schematic diagram of the structure of the network device of the present invention. As shown, network device 800 includes a processor 801, a wireless interface 802, and a memory 803. Wherein the wireless interface may be a plurality of components, i.e. comprising a transmitter and a receiver, providing a means for communicating with various other apparatuses over a transmission medium. The wireless interface performs the communication function with the terminal device, and processes wireless signals through the receiving and transmitting device, and data carried by the signals are communicated with the memory or the processor through the internal bus structure.

And when the first signal is a downlink signal, the network device is used as the first device. The memory 803 contains a computer program for executing the methods described in steps 101-104, 201-207 of the present application. When the first signal is an uplink signal, the network device, acting as a second device, the memory 803 contains a computer program for executing the methods described in steps 101-104, 301-308 of the present application. The memory 803 may also execute a computer program for the method according to steps 401-403 of the present application when the third device is a network device. The computer program runs or changes on the processor 801.

When the memory, processor, wireless interface circuit are connected through a bus system. The bus system includes a data bus, a power bus, a control bus, and a status signal bus, which are not described here again.

Fig. 13 is a block diagram of a terminal device of the present invention. The terminal device described in the application may refer to a mobile terminal device. Terminal device 900 comprises at least one processor 901, memory 902, user interface 903, and at least one network interface 904. The various components in terminal device 900 are coupled together by a bus system. Bus systems are used to enable connected communication between these components. The bus system includes a data bus, a power bus, a control bus, and a status signal bus.

The user interface 903 may include a display, keyboard, or pointing device, such as a mouse, trackball, touch pad, or touch screen, among others.

The memory 902 stores executable modules or data structures. The memory may store an operating system and application programs. The operating system includes various system programs, such as a framework layer, a core library layer, a driver layer, and the like, for implementing various basic services and processing hardware-based tasks. The application programs include various application programs such as a media player, a browser, etc. for implementing various application services.

In the embodiment of the present invention, when the first signal is an uplink signal, the terminal device is used as the first device, and the memory 902 includes a computer program for executing the methods described in steps 101 to 104 and 201 to 207 of the present application; and when the first signal is a downlink signal, the terminal equipment is used as second equipment. The memory 902 contains a computer program for performing the methods described in steps 101-104, 301-308 of the present application. When the first signal and the second signal are side link communication signals, the terminal device is used as the first device and the second device, and executes the computer program of the method in steps 101-104, 201-207 and 301-308. The memory 902 may also execute a computer program for the methods described in steps 401-403 of the present application when the third device is a terminal device. The computer program runs or changes on the processor 901.

The memory 902 contains a computer readable storage medium, and the processor 901 reads the information in the memory 902 and combines the hardware to perform the steps of the above method. Specifically, the computer readable storage medium stores a computer program, which when executed by the processor 901 implements the steps of the method embodiments described in any one of the embodiments above.

Processor 901 may be an integrated circuit chip with signal processing capabilities. In implementation, the steps of the methods of the present application may be performed by integrated logic circuitry in hardware or instructions in software in processor 901. The processor 901 may be a general purpose processor, a digital signal processor, an application specific integrated circuit, an off-the-shelf programmable gate array or other programmable logic device, a discrete gate or transistor logic device, a discrete hardware component. The disclosed methods, steps, and logic blocks in the embodiments of the present invention may be implemented or performed. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like. The steps of the method disclosed in connection with the embodiments of the present invention may be embodied directly in the execution of a hardware decoding processor, or in the execution of a combination of hardware and software modules in a decoding processor.

It will be appreciated by those skilled in the art that embodiments of the present invention may be provided as a method, system, or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. In one typical configuration, the device of the present application includes one or more processors (CPUs), an input/output user interface, a network interface, and memory.

Furthermore, the present invention may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.

Accordingly, the present application also proposes a computer readable medium having stored thereon a computer program which, when executed by a processor, implements the steps of the method according to any of the embodiments of the present application. For example, the

memory

803, 902 of the present invention may include non-volatile memory in a computer-readable medium, random Access Memory (RAM) and/or non-volatile memory, etc., such as read-only memory (ROM) or flash RAM.

Computer readable media, including both non-transitory and non-transitory, removable and non-removable media, may implement information storage by any method or technology. The information may be computer readable instructions, data structures, modules of a program, or other data. Examples of storage media for a computer include, but are not limited to, phase change memory (PRAM), static Random Access Memory (SRAM), dynamic Random Access Memory (DRAM), other types of Random Access Memory (RAM), read Only Memory (ROM), electrically Erasable Programmable Read Only Memory (EEPROM), flash memory or other memory technology, compact disc read only memory (CD-ROM), digital Versatile Discs (DVD) or other optical storage, magnetic cassettes, magnetic tape magnetic disk storage or other magnetic storage devices, or any other non-transmission medium, which can be used to store information that can be accessed by a computing device. Computer-readable media, as defined herein, does not include transitory computer-readable media (transmission media), such as modulated data signals and carrier waves.

Based on the embodiments of fig. 9-13, the present application also proposes a cellular mobile communication system comprising at least 1 embodiment of any one of the terminal devices of the present application and/or at least 1 embodiment of any one of the network devices of the present application. Further specifically, at least 1 first device as described in embodiments of the present application and/or at least 1 second or third device as described in embodiments of the present application are included.

It should also be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article or apparatus that comprises the element.

In the present application, "first", "second" and "third" are used to distinguish between a plurality of objects having the same name, and do not indicate a sequence or a size relationship, but have no other special meaning unless specifically indicated.

The foregoing is merely exemplary of the present application and is not intended to limit the present application. Various modifications and changes may be made to the present application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc. which are within the spirit and principles of the present application are intended to be included within the scope of the claims of the present application.

Claims

1. A method of wireless signal transmission in a cellular mobile communication network for allocating first resources for a data communication link for backscatter communication, comprising the steps of:

the first signal is a physical signal in a cellular mobile communications network; the second signal is generated by shifting the first signal according to the frequency domain difference and modulating the first signal by target information; the modulation mode comprises at least one of the following steps: on-off keying, frequency shift keying, QAM.

2. The wireless signal transmission method of claim 1, further comprising the steps of:

the third frequency domain range is orthogonal to the first frequency range and/or the third time domain range is orthogonal to the first time domain range;

the third frequency domain range is orthogonal to the second frequency range and/or the third time domain range is orthogonal to the second time domain range.

3. The wireless signal transmission method of claim 1, wherein,

the first configuration information comprises identification information of the receiving device and/or the first configuration information is broadcast or multicast information.

4. The wireless signal transmission method of claim 1, wherein,

the first signal comprises at least one of a PSS/SSS/CSI-RS/PT-RS/DMRS signal in a cellular mobile communications network.

5. The wireless signal transmission method of claim 1, wherein,

the frequency domain difference between the second resource and the first resource is indicated with second configuration information.

6. The wireless signal transmission method of claim 1, wherein,

the first signal carries downlink information for the second terminal equipment; the first terminal device is unaware that the first signal is a downlink signal to the second terminal device.

7. The wireless signal transmission method of claim 1, wherein,

the first frequency domain range is located in a downlink carrier frequency band, or the first frequency domain range is located in a downlink bandwidth part;

the second frequency domain range is located in an uplink carrier frequency band, or the second frequency domain range is located in an uplink bandwidth portion.

8. The wireless signal transmission method of claim 1, wherein,

the first signal is an OFDM signal, the first time domain range comprises L OFDM symbols, the first frequency domain range comprises K subcarriers, L is more than or equal to 1, and K is more than or equal to 1.

9. The wireless signal transmission method of claim 1, wherein,

the target information is from a first terminal device;

the first signal comprises traffic data or signaling transmitted to the second terminal device.

10. The wireless signal transmission method of claim 9, wherein,

the first signal comprises information of the second terminal equipment, and the modulation mode is on-off keying;

Or,

the first signal does not include information of the second terminal device, and the modulation mode is QAM.

11. The method according to any of claims 1 to 10, for a first device, comprising the steps of:

transmitting the first configuration information;

transmitting the first signal in the first resource;

12. The method of claim 11, further comprising, prior to receiving the second signal, the steps of:

determining second configuration information according to the second resource, and sending the second configuration information;

or,

and acquiring second configuration information, and determining the second resource according to the second configuration information.

13. The method of claim 11, further comprising, prior to receiving the second signal, the steps of:

and sending modulation mode indication information for indicating a modulation mode of modulating the first signal by the target information.

14. The wireless signal transmission method of claim 11, wherein demodulating the second signal in the second resource further comprises the steps of:

Detecting the preamble information, and determining time timing synchronization and/or frequency synchronization of receiving the second signal according to a detection result;

the positional relationship between the resources occupied by the preamble information and the second resources is preset.

15. The wireless signal transmission method of claim 11, further comprising the steps of:

and sending the confirmation information for acquiring the target information.

16. The method of claim 11, further comprising the step of:

transmitting third configuration information, and indicating the position of a third resource by using the third configuration information, wherein the third resource comprises a third time domain range and a third frequency domain range;

17. The method according to any of claims 1 to 10, for a second device, comprising the steps of:

receiving the first signal in the first resource;

18. The method of claim 17, further comprising, prior to transmitting the second signal, the steps of:

or,

19. The method of claim 17, further comprising, prior to transmitting the second signal, the steps of:

and acquiring modulation mode indication information and determining a modulation mode of modulating the first signal by the target information.

20. The method of claim 17, further comprising the step of:

receiving third configuration information, wherein the third configuration information indicates the position of a third resource;

and receiving a third signal from the third resource, converting the third signal into energy for storage, and using the energy as power supply energy of the first terminal equipment.

21. The method of claim 17, further comprising the step of:

and receiving the synchronization information, and acquiring the timing synchronization and the frequency synchronization of the received signals.

22. The method of claim 17, further comprising the step of:

and transmitting the preamble information while transmitting the second signal, wherein the position relation between the resources occupied by the preamble information and the second resources is preset.

23. The method of claim 17, further comprising the step of:

and acquiring the confirmation information of the received target information.

24. The wireless signal transmission method according to any one of claims 1 to 10, for a third device, comprising the steps of:

25. A communication device for implementing the method of any of claims 1-16, characterized in that at least one module in the communication device is adapted to implement at least one of the following functions: transmitting the first configuration information; receiving or transmitting second configuration information; transmitting a first signal in a first resource; and receiving a second signal in the second resource, and demodulating to obtain the target information.

26. A communication device for implementing the method of any of claims 1-10, 17-24, characterized in that at least one module of the communication device is adapted to implement at least one of the following functions: receiving the first configuration information; receiving or transmitting second configuration information; receiving a first signal in a first resource; and moving the first signal from the first resource to the second resource, and generating a second signal after modulating the second signal by the target information.

27. A communication device for implementing the method of any of claims 1-10, 17-24, characterized in that at least one module of the communication device is adapted to implement at least one of the following functions: acquiring second configuration information, wherein the second configuration information is used for determining second resources, and the second resources comprise Q OFDM symbols and W subcarriers; acquiring scheduling indication information, wherein the scheduling indication information is used for indicating a target resource, and an intersection of the target resource and the second resource overlaps with an overlapping resource; and transmitting information at the part of the target resource except the overlapped resource.

28. A mobile communication device, comprising: memory, a processor and a computer program stored on the memory and executable on the processor, which when executed by the processor performs the steps of the method according to any one of claims 1 to 24.

29. A computer readable medium having stored thereon a computer program which, when executed by a processor, implements the steps of the method according to any of claims 1 to 24.

30. A mobile communication system comprising at least 1 communication device according to claim 25 and/or at least 1 communication device according to any one of claims 26 to 27.