WO2024083195A1

WO2024083195A1 - Resource size determination method, and terminal and network-side device

Info

Publication number: WO2024083195A1
Application number: PCT/CN2023/125466
Authority: WO
Inventors: 袁璞; 刘昊; 刘劲
Original assignee: 维沃移动通信有限公司
Priority date: 2022-10-21
Filing date: 2023-10-19
Publication date: 2024-04-25
Also published as: CN117978339A

Abstract

The embodiments of the present application belong to the technical field of communications. Disclosed are a resource size determination method, and a terminal and a network-side device. The resource size determination method in the embodiments of the present comprises: a sending end determining the size of a first resource occupied by a sensing pilot frequency and the size of a second resource occupied by a communication sensing frame; and the sending end converting the sensing pilot frequency of a delay Doppler domain into a time-frequency domain according to the size of the first resource and the size of the second resource to make the sensing pilot frequency and communication data of the time-frequency domain superposed and mapped to a time-frequency domain resource grid, wherein the resource occupied by the communication data is the second resource.

Description

Resource size determination method, terminal and network side device

CROSS-REFERENCE TO RELATED APPLICATIONS

This application claims priority to Chinese patent application No. 202211297955.9 filed in China on October 21, 2022, the entire contents of which are incorporated herein by reference.

Technical Field

The present application belongs to the field of communication technology, and specifically relates to a method for determining resource size, a terminal, and a network-side device.

Background technique

Orthogonal Frequency Division Multiplexing (OFDM) multi-carrier system has good anti-inter-symbol interference (ISI) performance. However, the weakness of OFDM is the limited subcarrier spacing. Therefore, in high-speed mobile scenarios (such as high-speed rail), the large Doppler frequency shift caused by the large relative speed between the transmitter and receiver destroys the orthogonality between the OFDM subcarriers, causing serious inter-carrier interference (ICI) between the subcarriers.

The Orthogonal Time Frequency Space (OTFS) technology is dedicated to solving the above problems in OFDM systems. OTFS technology defines the transformation between the delay Doppler domain and the time-frequency domain. By mapping the communication data and pilot to the delay Doppler domain at the transceiver, the coupling interference between data samples is reduced, and additional diversity gain and channel estimation gain are obtained.

A notable feature of OTFS technology is the unique pilot design in the delay Doppler domain. The system's perception function can be realized through the pilot. At the same time, the system's communication function can be realized through communication data. However, since the communication data and the pilot are jointly mapped on the delay Doppler domain resources, it is impossible to achieve a trade-off between perception indicators and communication indicators. For example, the communication indicators cannot be met when the perception indicators are met, or the perception indicators cannot be met when the communication indicators are met.

Summary of the invention

The embodiments of the present application provide a method for determining resource size, a terminal, and a network-side device, which can solve the problem of being unable to achieve a trade-off between perception indicators and communication indicators.

In a first aspect, a method for determining resource size is provided, comprising: a transmitting end determines the size of a first resource occupied by a perception pilot and the size of a second resource occupied by a communication perception frame; the transmitting end transforms the perception pilot in the delayed Doppler domain to the time-frequency domain according to the size of the first resource and the size of the second resource, and maps the pilot on a time-frequency domain resource grid by superimposing it with communication data in the time-frequency domain; wherein the resource occupied by the communication data is the second resource.

In a second aspect, a method for determining resource size is provided, including: a receiving end receives ninth indication information, wherein the ninth indication information is used to indicate the size of first resources occupied by a perception pilot and the size of second resources occupied by a communication perception frame; the receiving end obtains communication data in the time-frequency domain and the perception pilot in the delayed Doppler domain according to the size of the first resource and the size of the second resource; wherein the resources occupied by the communication data are the second resources.

According to a third aspect, a device for determining the size of resources is provided, which is applied to a transmitting end and includes: a determination module for determining the size of a first resource occupied by a perception pilot and the size of a second resource occupied by a communication perception frame; a communication module for transforming the perception pilot in the delayed Doppler domain to the time-frequency domain according to the size of the first resource and the size of the second resource, and superimposing and mapping the pilot with the communication data in the time-frequency domain on a resource grid in the time-frequency domain; wherein the resources occupied by the communication data are the second resources.

In a fourth aspect, a device for determining resource size is provided, which is applied to a receiving end and includes: a communication module, which is used to receive ninth indication information, wherein the ninth indication information is used to indicate the size of first resources occupied by a perception pilot and the size of second resources occupied by a communication perception frame; the communication module is also used to obtain communication data in the time-frequency domain and the perception pilot in the delayed Doppler domain according to the size of the first resource and the size of the second resource; wherein the resources occupied by the communication data are the second resources.

In a fifth aspect, a terminal is provided, comprising a processor and a memory, wherein the memory stores a program or instruction that can be run on the processor, and when the program or instruction is executed by the processor, the steps of the method described in the first aspect or the second aspect are implemented.

In a sixth aspect, a terminal is provided, comprising a processor and a communication interface, wherein the processor is used to determine the size of a first resource occupied by a perception pilot and the size of a second resource occupied by a communication perception frame, and the communication interface is used to transform the perception pilot in the delayed Doppler domain to the time-frequency domain according to the size of the first resource and the size of the second resource, and map it on the time-frequency domain resource grid with the communication data in the time-frequency domain; wherein the resources occupied by the communication data are the second resources. Alternatively, the communication interface is used to receive ninth indication information, wherein the ninth indication information is used to indicate the size of the first resource occupied by the perception pilot and the size of the second resource occupied by the communication perception frame; according to the size of the first resource and the size of the second resource, the communication data in the time-frequency domain and the perception pilot in the delayed Doppler domain are obtained; wherein the resources occupied by the communication data are the second resources.

In the seventh aspect, a network side device is provided, which includes a processor and a memory, wherein the memory stores programs or instructions that can be run on the processor, and when the program or instructions are executed by the processor, the steps of the method described in the first aspect or the second aspect are implemented.

In an eighth aspect, a network side device is provided, including a processor and a communication interface, wherein the processor is used to determine the size of a first resource occupied by a perception pilot and the size of a second resource occupied by a communication perception frame, and the communication interface is used to transform the perception pilot in the delayed Doppler domain to the time-frequency domain according to the size of the first resource and the size of the second resource, and map it on the time-frequency domain resource grid with the communication data in the time-frequency domain; wherein the resource occupied by the communication data is the second resource. Alternatively, the communication interface is used to receive ninth indication information, and the ninth indication information is used to indicate the size of the first resource occupied by the perception pilot and the size of the second resource occupied by the communication perception frame; according to the size of the first resource and the size of the second resource, the communication data in the time-frequency domain and the perception pilot in the delayed Doppler domain are obtained; wherein the resource occupied by the communication data is the second resource.

In the ninth aspect, a system for determining resource size is provided, comprising: a terminal and a network side device, wherein the terminal can be used to execute the steps of the method described in the first aspect or the second aspect, and the network side device can be used to execute the steps of the method described in the first aspect or the second aspect.

In the tenth aspect, a readable storage medium is provided, on which a program or instruction is stored. When the program or instruction is executed by a processor, the steps of the method described in the first aspect are implemented, or the steps of the method described in the second aspect are implemented.

In the eleventh aspect, a chip is provided, comprising a processor and a communication interface, wherein the communication interface is coupled to the processor, and the processor is used to run a program or instructions to implement the steps of the method described in the first aspect, or to implement the steps of the method described in the second aspect.

In the twelfth aspect, a computer program/program product is provided, wherein the computer program/program product is stored in a storage medium, and the computer program/program product is executed by at least one processor to implement the steps of the method described in the first aspect, or to implement the steps of the method described in the second aspect.

In an embodiment of the present application, in the case of cross-transformation domain, that is, when the perception pilot in the delayed Doppler domain is transformed into the time-frequency domain and superimposed with the communication data in the time-frequency domain and mapped on the time-frequency domain resource grid, the transmitting end determines the size of the first resource occupied by the perception pilot and the size of the second resource occupied by the communication perception frame, which is beneficial to achieving a balance between the perception indicator and the communication indicator, thereby meeting the perception requirements or communication requirements of the system.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG1 is a schematic diagram of a wireless communication system according to an embodiment of the present application;

FIG2 is a schematic flow chart of a method for determining resource size according to an embodiment of the present application;

FIG3 is a complementary cumulative distribution function (CCDF) curve of the pilot signal and the inner product of random noise/data;

FIG4 is a CCDF curve of the inner product of the pilot and random noise/data;

FIG5 is a CCDF curve of the inner product of the pilot and random noise/data;

FIG6 is a schematic flow chart of a method for determining resource size according to an embodiment of the present application;

FIG7 is a schematic diagram of the structure of a device for determining resource size according to an embodiment of the present application;

FIG8 is a schematic diagram of the structure of a device for determining resource size according to an embodiment of the present application;

FIG9 is a schematic diagram of the structure of a communication device according to an embodiment of the present application;

FIG10 is a schematic diagram of the structure of a terminal according to an embodiment of the present application;

FIG. 11 is a schematic diagram of the structure of a network side device according to an embodiment of the present application.

Detailed ways

The following will be combined with the drawings in the embodiments of the present application to clearly describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field belong to the scope of protection of this application.

The terms "first", "second", etc. in the specification and claims of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the terms used in this way are interchangeable under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than those illustrated or described here, and the objects distinguished by "first" and "second" are generally of the same type, and the number of objects is not limited. For example, the first object can be one or more. In addition, "and/or" in the specification and claims represents at least one of the connected objects, and the character "/" generally represents that the objects associated with each other are in an "or" relationship.

It is worth noting that the technology described in the embodiments of the present application is not limited to the Long Term Evolution (LTE)/LTE-Advanced (LTE-A) system, but can also be used in other wireless communication systems, such as Code Division Multiple Access (CDMA), Time Division Multiple Access (TDMA), Frequency Division Multiple Access (FDMA), Orthogonal Frequency Division Multiple Access (OFDMA), Single-carrier Frequency Division Multiple Access (SC-FDMA) and other systems. The terms "system" and "network" in the embodiments of the present application are often used interchangeably, and the described technology can be used for the above-mentioned systems and radio technologies as well as other systems and radio technologies. The following description describes a New Radio (NR) system for example purposes, and NR terminology is used in most of the following description, but these techniques may also be applied to applications other than NR system applications, such as 6th Generation (6G) communication systems.

FIG1 shows a block diagram of a wireless communication system applicable to an embodiment of the present application. The wireless communication system includes a terminal 11 and a network side device 12 . Among them, the terminal 11 can be a mobile phone, a tablet computer (Tablet Personal Computer), a laptop computer (Laptop Computer) or a notebook computer, a personal digital assistant (Personal Digital Assistant, PDA), a handheld computer, a netbook, an ultra-mobile personal computer (ultra-mobile personal computer, UMPC), a mobile Internet device (Mobile Internet Device, MID), augmented reality (augmented reality, AR)/virtual reality (virtual reality, VR) equipment, a robot, a wearable device (Wearable Device), a vehicle-mounted device (Vehicle User Equipment, VUE), a pedestrian terminal (Pedestrian User Equipment, PUE), a smart home (home equipment with wireless communication functions, such as refrigerators, televisions, washing machines or furniture, etc.), a game console, a personal computer (personal computer, PC), a teller machine or a self-service machine and other terminal side devices, and the wearable devices include: smart watches, smart bracelets, smart headphones, smart glasses, smart jewelry (smart bracelets, smart bracelets, smart rings, smart necklaces, smart anklets, smart anklets, etc.), smart wristbands, smart clothing, etc. It should be noted that in The embodiment of the present application does not limit the specific type of the terminal 11. The network side device 12 may include an access network device or a core network device, wherein the access network device may also be referred to as a radio access network device, a radio access network (RAN), a radio access network function or a radio access network unit. The access network device may include a base station, a WLAN access point or a WiFi node, etc. The base station may be referred to as a node B, an evolved node B (eNB), an access point, a base transceiver station (BTS), a radio base station, a radio transceiver, a basic service set (BSS), an extended service set (ESS), a home node B, a home evolved node B, a transmission reception point (TRP) or other appropriate terms in the field, as long as the same technical effect is achieved, the base station is not limited to a specific technical vocabulary, it should be noted that in the embodiment of the present application, only the base station in the NR system is used as an example for introduction, and the specific type of the base station is not limited.

The following is a detailed description of the method for determining the resource size provided in the embodiment of the present application through some embodiments and their application scenarios in combination with the accompanying drawings.

As shown in FIG. 2 , an embodiment of the present application provides a method 200 for determining resource size. The method can be executed by a transmitting end. In other words, the method can be executed by software or hardware installed on the transmitting end. The method includes the following steps.

S202: The transmitting end determines the size of the first resources occupied by the perception pilot and the size of the second resources occupied by the communication perception frame.

The sending end in each embodiment of the present application can be a terminal or a network side device. When the sending end is a terminal, the receiving end can be a network side device or other terminal; when the sending end is a network side device, the receiving end can be a terminal or other network side device.

In various embodiments of the present application, the size of the second resources occupied by the communication perception frame can be M×N, M corresponds to the resource length of the delay dimension, and N corresponds to the resource length of the Doppler dimension; the size of the first resources occupied by the perception pilot can be N_P×M_P, N_P<N, M_P<M, M_P corresponds to the resource length of the delay dimension, and N_P corresponds to the resource length of the Doppler dimension.

In this step, the transmitting end may determine the size of the first resource occupied by the perception pilot and the size of the second resource occupied by the communication perception frame according to the perception priority and/or the communication priority. For example, in the case of perception priority (such as the perception priority is higher than a certain threshold) or the perception priority is higher than the communication priority, the transmitting end determines the size of the first resource occupied by the perception pilot and the size of the second resource occupied by the communication perception frame. For another example, in the case of communication priority (such as the communication priority is higher than a certain threshold) or the communication priority is higher than the perception priority, the transmitting end determines the size of the first resource occupied by the perception pilot and the size of the second resource occupied by the communication perception frame.

Optionally, in this step, the transmitting end determines the size of the first resources occupied by the perception pilot and the size of the second resources occupied by the communication perception frame, including: the transmitting end determines the size of the second resources occupied by the communication perception frame according to a perception resolution index, and the perception resolution index includes a delay resolution index and a Doppler resolution index; the transmitting end determines the size of the first resources occupied by the perception pilot according to the processing capability of the receiving end.

Optionally, in this step, the transmitting end determines the size of the first resources occupied by the perception pilot and the size of the second resources occupied by the communication perception frame, including: the transmitting end determines the size of the first resources occupied by the perception pilot and the size of the second resources occupied by the communication perception frame according to the communication throughput demand index and the processing capability of the receiving end.

S204: The transmitting end transforms the perception pilot in the delayed Doppler domain to the time-frequency domain according to the size of the first resource and the size of the second resource, and superimposes and maps it with the communication data in the time-frequency domain on the time-frequency domain resource grid; wherein the resources occupied by the communication data are the second resources.

In this step, the transmitting end transforms the perception pilot of the size of the first resource occupied in the delayed Doppler domain to the time-frequency domain according to the size of the first resource and the size of the second resource, and superimposes and maps it with the communication data of the size of the second resource occupied in the time-frequency domain on the time-frequency domain resource grid.

Optionally, S204 may also include the following steps: the transmitting end converts the time-frequency domain data set (including the above-mentioned communication data and perception pilot) into a time domain signal through orthogonal frequency division multiplexing (OFDM) modulation and sends it.

Optionally, each embodiment of the present application may further include the following steps: the sending end indicates the perception to the receiving end The present invention relates to a method for transmitting the perceptual pilot signal to a user of the present invention and/or the scrambling sequence of the perceptual pilot signal, wherein the information of the perceptual pilot signal includes at least one of the following: 1) a sequence or a sequence index of the perceptual pilot signal, wherein the sequence index may be located in a predefined sequence index table, wherein the sequence index table includes sequences of multiple perceptual pilots and an index of the sequence of each perceptual pilot signal; 2) a generation parameter or a generation parameter index of the sequence of the perceptual pilot signal, wherein the generation parameter index may be located in a predefined generation parameter index table, wherein the generation parameter index table includes generation parameters of sequences of multiple perceptual pilots and an index of each generation parameter.

The method for determining the resource size provided in the embodiment of the present application, in the case of crossing transform domains, that is, transforming the perception pilot in the delayed Doppler domain to the time-frequency domain, and superimposing and mapping it with the communication data in the time-frequency domain on the time-frequency domain resource grid, the transmitting end determines the size of the first resource occupied by the perception pilot and the size of the second resource occupied by the communication perception frame, which is conducive to achieving a balance between perception indicators and communication indicators and meeting the perception requirements or communication requirements of the system.

The embodiments of the present application are conducive to achieving a balance between perception indicators and communication indicators. For example, in the case of perception priority, the transmitter can determine the size of the second resource occupied by the communication perception frame according to the perception resolution indicator, and determine the size of the first resource occupied by the perception pilot according to the processing capability of the receiving end; wherein, the larger the resource occupied by the perception pilot, the stronger the processing capability of the receiving end is required, and the communication indicator of the system is met as much as possible while the perception indicator is met. For another example, in the case of communication priority, the transmitter can determine the size of the first resource occupied by the perception pilot and the size of the second resource occupied by the communication perception frame according to the communication throughput demand indicator and the processing capability of the receiving end, and the perception indicator of the system is met as much as possible while the communication indicator is met.

Optionally, based on Example 200, the transmitting end determines the size of the first resources occupied by the perception pilot and the size of the second resources occupied by the communication perception frame, including: the transmitting end determines the size of the second resources occupied by the communication perception frame according to a perception resolution index, and the perception resolution index includes a delay resolution index and a Doppler resolution index; the transmitting end determines the size of the first resources occupied by the perception pilot according to the processing capability of the receiving end.

In this embodiment, the transmitting end determines the size of the second resource occupied by the communication perception frame according to the perception resolution index, including: the transmitting end determines the size of the second resource occupied by the communication perception frame from the frame structure configuration table according to the perception resolution index; wherein the frame structure configuration table includes multiple resource sizes of the communication perception frame and an index of each resource size.

Optionally, the frame structure configuration table also includes a target bit error rate corresponding to each resource size.

The above frame structure configuration table may be pre-configured by the protocol, so that the sending end may indicate to the receiving end the index of the communication perception frame to be used, etc., which is beneficial to reducing communication overhead.

In this embodiment, the transmitting end determines the size of the first resource occupied by the perceptual pilot according to the processing capability of the receiving end, including: the transmitting end determines the size of the first resource occupied by the perceptual pilot from a pilot block configuration table according to the processing capability of the receiving end; wherein the pilot block configuration table includes multiple resource sizes of the perceptual pilot, an index of each resource size, a transmission power corresponding to each resource size, and a transmission power of the communication data corresponding to each resource size.

The pilot block configuration table may be pre-configured by the protocol, so that the transmitting end may indicate the index of the perception pilot to be used to the receiving end, which is beneficial to reducing communication overhead.

Optionally, before the transmitting end determines the size of the first resource occupied by the perception pilot from the pilot block configuration table according to the processing capability of the receiving end, the method also includes: the transmitting end sends first indication information, and the first indication information is used to activate the transmission of the communication perception frame; the transmitting end receives the processing capability information, and the processing capability information is sent by the receiving end when the first indication information is received.

Optionally, before the transmitting end determines the size of the first resource occupied by the perception pilot from the pilot block configuration table according to the processing capability of the receiving end, the method also includes: the transmitting end sends second indication information, the second indication information includes the size of the first resource, and the second indication information is used to activate the transmission of the communication perception frame; if the transmitting end receives negative information, the transmitting end continues to send the second indication information, the second indication information includes the reduced size of the first resource, until the confirmation information from the receiving end is received.

Optionally, the method provided in this embodiment further includes: the sending end sends third indication information to the receiving end, The third indication information includes at least one of the following: 1) the size of the second resource or the index of the second resource; 2) the target bit error rate corresponding to the second resource; 3) the size of the first resource or the index of the first resource.

The third indication information can be sent to the receiving end through at least one of the following: synchronization signal; physical broadcast channel (PBCH); downlink control information (DCI) in physical downlink control channel (PDCCH); system information blocks (SIB); radio resource control (RRC) signaling; network side equipment or dedicated sensing control node (SCN) forwarding.

In this embodiment, the communication receiving end can demodulate and decode the communication data according to the instruction or configuration of the sending end, and further determine whether the configuration needs to be adjusted according to the target bit error rate indicated by the sending end. The method provided by this embodiment also includes at least one of the following:

1) Upon receiving fourth indication information, the transmitting end continues to use the current transmission configuration of the communication perception frame, and the fourth indication information indicates that the actual bit error rate of the receiving end is less than or equal to the target bit error rate.

2) Upon receiving fifth indication information, the transmitting end reduces the transmission power of the perception pilot and/or increases the transmission power of the communication data, and the fifth indication information indicates that the actual bit error rate of the receiving end is greater than the target bit error rate.

In this embodiment, the transmission configuration of the communication perception frame includes, for example: the size of the second resource or the index of the second resource; the transmission power of the perception pilot; the transmission power of the communication data; the size of the first resource or the index of the first resource, etc.

Optionally, in this embodiment, after the transmitting end adjusts the current transmission configuration of the communication perception frame, such as increasing the transmission power of the communication data and/or reducing the transmission power of the perception pilot, it can also indicate the adjusted configuration to the receiving end to facilitate the receiving end to make timely configuration adjustments and improve receiving efficiency.

This embodiment can adaptively adjust the transmission configuration of the communication-aware frame when channel conditions change, so as to minimize overhead.

Optionally, reducing the transmit power of the perception pilot and/or increasing the transmit power of the communication data includes one of the following:

1) Reselecting the transmission power of the perception pilot and/or the transmission power of the communication data from a pilot block configuration table; wherein the pilot block configuration table includes multiple resource sizes of the perception pilot, an index of each resource size, a transmission power corresponding to each resource size, and a transmission power of the communication data corresponding to each resource size.

2) According to a preconfigured adjustment step size, reducing the transmission power of the perception pilot and/or increasing the transmission power of the communication data.

Optionally, the reduced transmission power of the perception pilot and/or the increased transmission power of the communication data satisfies the following formula:

Wherein, Z is the SINR index; c is the threshold; i is the number of the echo path; L is the number of echo paths; h _i is the channel gain of the i-th path; ρ _0i is the inner product of the pilot and data of the normalized line of sight path of the echo; h ₀ is the channel gain of the 0-th path; is the transmit power of the perception pilot; is the transmission power of the communication data; is a very small constant, is a very small constant, ξ is the inner product of the normalized line-of-sight pilot and noise; M and N are the sizes of the second resource; γ is the signal-to-noise ratio of the system;

Wherein, Z is the SINR index; is the transmission power of the communication data; _h0 is the channel gain of the 0th path; c is the threshold; _ρ0i is the inner product of the pilot and data of the normalized line of sight path of the echo; _MP and _NP are the sizes of the first resource; M and N are the sizes of the second resource; is the transmission power of the perception pilot; i is the number of the echo path; L is the number of echo paths; h _i is the channel gain of the ith path; ψ _0i is the inner product of the pilot of the line-of-sight path and the pilot of the non-line-of-sight path of the echo; ξ is the inner product of the normalized line-of-sight path pilot and noise; σ is the standard deviation of the noise random variable.

Optionally, based on Example 200, the transmitting end determines the size of the first resources occupied by the perception pilot and the size of the second resources occupied by the communication perception frame, including: the transmitting end determines the size of the first resources occupied by the perception pilot and the size of the second resources occupied by the communication perception frame according to the communication throughput demand index and the processing capability of the receiving end.

In this embodiment, the transmitting end determines the size of the first resource occupied by the perception pilot and the size of the second resource occupied by the communication perception frame according to the communication throughput demand indicator and the processing capability of the receiving end, including: the transmitting end determines the size of the first resource occupied by the perception pilot and the size of the second resource occupied by the communication perception frame from the frame structure and pilot block configuration table according to the communication throughput demand indicator and the processing capability of the receiving end; wherein the frame structure and pilot block configuration table includes: multiple resource sizes of the perception pilot, an index of each resource size, a size of the second resource corresponding to each resource size, a target SINR indicator corresponding to each resource size, a transmission power corresponding to each resource size, and a transmission power of the communication data corresponding to each resource size.

Optionally, the frame structure and pilot block configuration table also includes an SINR indicator corresponding to each resource size, a transmission power of a sensing pilot, a transmission power of communication data, and the like.

The frame structure and pilot block configuration table may be pre-configured by the protocol, so that the transmitting end may indicate to the receiving end the perception pilot to be used and the index of the communication perception frame, etc., which is beneficial to reducing communication overhead.

Optionally, the method provided by this embodiment also includes: the sending end sends sixth indication information to the receiving end, and the sixth indication information includes at least one of the following: 1) the size of the second resource or the index of the second resource; 2) the size of the first resource or the index of the first resource; 3) the target SINR indicator corresponding to the first resource and the second resource.

The sixth indication information is sent to the receiving end through at least one of the following: synchronization signal; physical broadcast channel (Physical Broadcast Channel, PBCH); downlink control information (Downlink Control Information, DCI) in physical downlink control channel (Physical Downlink Control Channel, PDCCH); system information blocks (System Information Blocks, SIB); radio resource control (Radio Resource Control, RRC) signaling; network side equipment or dedicated sensing control node (Sensing Control Node, SCN) forwarding.

In this embodiment, the communication receiving end can demodulate and decode the communication data according to the instruction or configuration of the transmitting end, and further determine whether the configuration needs to be adjusted according to the target SINR indicator indicated by the transmitting end. The method provided by this embodiment also includes at least one of the following:

1) Upon receiving the seventh indication information, the transmitting end continues to use the current transmission configuration of the communication perception frame, and the seventh indication information indicates that the actual SINR of the receiving end is greater than the target SINR indicator.

2) Upon receiving the eighth indication information, the transmitting end reduces the transmission power of the perception pilot and/or increases the transmission power of the communication data, and the eighth indication information indicates that the actual SINR of the receiving end is less than or equal to the target SINR indicator.

Optionally, in this embodiment, after the transmitting end adjusts the current transmission configuration of the communication perception frame, such as reducing the transmission power of the perception pilot and/or increasing the transmission power of the communication data, it can also indicate the adjusted configuration to the receiving end to facilitate the receiving end to make timely configuration adjustments and improve receiving efficiency.

This embodiment can adaptively adjust the transmission configuration of the communication awareness frame when the channel conditions change, so as to minimize the Less overhead.

To illustrate in detail the method for determining the resource size provided in the embodiments of the present application, several specific embodiments will be described below.

The embodiment of the present application designs a pilot signal sending and receiving processing mechanism, defines the corresponding signaling content and signaling interaction process, and can ensure that the perception pilot in the delayed Doppler domain can work smoothly in the synaesthesia system. The following will first derive and explain the implementation principle of the design of the delayed Doppler domain pilot.

In the technical solution of the present application, the pilot block size used is N _P × M _P , N _P ≤ N, M _P ≤ M, and is mapped separately in the delay Doppler domain resource of size N × M. Assume that the total power of the pilot block is (fixed total pilot power), then the average power of each symbol in the pilot block is Assuming the total power is The data block is mapped into the time-frequency domain resource of size N×M, then the average power of each symbol in the data block is For the perception function, its perception performance mainly depends on the signal-to-interference-to-noise ratio (SINR) of the received signal. For the perception system, what is of interest is the echo of the pilot part that experiences the LOS path. Assuming that the echo has L multipaths and the phase change caused by the delay has been compensated, the echo reception model in the delayed Doppler domain is:

The first term in formula (1) is the signal, the second term is the interference, and the third term is the noise.

where (h _i , τ _i , _vi ) defines the channel gain, delay and Doppler of the i-th path, are the quantization of physical parameters τ _i and _vi on the two-dimensional resource grid in the delay-Doppler domain. In radar perception, it is usually considered that h ₀ >h _i , i ≠ 0. The interference term includes the echo of all data parts, as well as the pilot echo that experiences the NLOS path, environmental clutter and thermal noise, which are uniformly defined as noise w _N , and Note that, strictly speaking, and are S and D in the delay dimension and Doppler dimension respectively. The cyclic shift version has an element-by-element phase offset. Since this fixed phase shift does not affect the perception detection and can be easily compensated after the perception detection obtains the CSI, for the sake of simplicity, the phase shift can be ignored in the modeling analysis.

use and Respectively represent the pilot symbol matrix and data symbol matrix in the delayed Doppler domain. The pilot block is located in the pilot symbol matrix, with a size of N _P × M _P , and the symbol values of the pilot symbol matrix except the pilot block are all zero. The data symbol matrix in the delayed Doppler domain is the result of the modulation symbol matrix in the time-frequency domain transformed to the delayed Doppler domain through SFFT. X is the transmission symbol matrix,

The receiving side uses Y and S _{[a, b]} to perform linear correlation operations, and determines the position of the LOS path echo on the delay-Doppler plane based on the accumulated power of the obtained correlation signal. For perception, it is usually assumed that the reflection path of the target is the LOS path. At the same time, under the condition of being resolvable, the reflection path of each target has at least one of different delays or Dopplers, that is, τ _i ≠τ _j or v _i ≠v _j , i ≠j.

Assume that the distance and speed of a mobile target to the ISAC machine correspond to (τ ₀ , v ₀ ) respectively. The cyclic shift S _{[a, b]} of S is used to perform linear correlation detection on the sensing receiving side. When:

in Numerical verification shows that ρ _0i ＜＜ _MP N _P .

in Through numerical verification, it can be seen that ψ _0i ＜＜ _MP N _P , and when or When ψ _0i = 0. σ is the standard deviation of the noise random variable, and its variance σ ² is the noise power density in the delay-Doppler domain, that is, the noise power at each delay-Doppler domain resource grid point. Through numerical verification, it can be known _that ξ＜＜ _MPNP , as shown in Figures 3, 4 and 5. Figure 3 is the CCDF curve of the inner product of the pilot and random noise/data, 10000 cycles, _MP =15, _NP =15; Figure 4 is the CCDF curve of the inner product of the pilot and random noise/data, 10000 cycles, _MP =63, _NP =63; Figure 5 is the CCDF curve of the inner product of the pilot and random noise/data, 10000 cycles, _MP =255, _NP =255.

From Figures 3, 4 and 5, we can see the following rules: First, ρ _0i and ξ are approximately identically distributed, so the impact of data and noise on perceived SINR depends only on their respective average powers. Second, as _MPNP increases, the gap between the inner product of the _pilot and itself and the inner product of the pilot and data/noise becomes larger and larger, which means that the detection performance is improved.

Based on the above properties, without considering the computational complexity, _MP = M, _NP = N, which is the most preferred solution. In particular, when _MP = M, _NP = N, we have:

in, And can be verified At this time, the perceived SINR reaches the best.

At the same time, when That is, when S _{[a, b]} on the receiving side does not match (coincide) with the LOS path receiving signal, we have:

For threshold-based LOS path determination, it is hoped that and The larger the difference in size, the better, so as to reduce the probability of misjudgment. For perception scenarios, it is usually assumed that h ₀ >> h _j , so It directly reflects the gap between the linear correlation peak of the LOS path and other reflection paths. At this time, the false detection rate of the perceived target detection is mainly determined by

From the analysis of (3), it can be seen that when linear correlation detection is used, for the LOS path, the detection SINR of its sensing signal is defined as:

When _MPNP ₌ MN, we have:

in is the signal-to-noise ratio of the system.

In the first term of the denominator of formula (6), if MN is determined, then ρ _0i is determined. The size of depends on two factors: (1) That is, the channel gain ratio of the LOS path to all interference paths; (2) That is, the power ratio of data and pilot. Obviously, in order to improve the perception performance, we hope

In the second term of the denominator of formula (6), The LOS diameter is is the ratio of the channel gain and of all interference paths with weights. The perceived signal power of the interference path is significantly suppressed.

In the third term of the denominator of formula (6), the influence of environmental noise is reduced by the coefficient factor Suppression was performed.

In fact, by combining the pilot design with linear correlation detection, the pilot block can be regarded as a precoding matrix, which is used to project the signal power on the resource of size _MP × _NP onto the signal subspace defined by the precoding matrix, while most of the power of echo interference and environmental noise is projected outside the signal subspace, thereby reflecting a significant interference and noise suppression effect.

At the same time, although the perception performance is optimal when _MP = M, _NP = N, for the communication receiving side, larger _MP and _NP will increase the complexity of channel estimation. In some scenarios, due to terminal capability limitations, _MP < M, _NP < N may still be set.

For single-station sensing, the sensing channel is usually considered to be the round-trip of the communication channel, and its delay and Doppler are both twice that of the communication channel, so the channel quality of the communication channel is better than that of the sensing channel; for multi-station sensing, the sensing receiver can actually be regarded as a communication receiver that only performs channel estimation and does not require demodulation and decoding. Therefore, if the transmitted signal meets the channel estimation requirements of sensing, it can be assumed that it also meets the channel estimation accuracy requirements of communication.

There are usually two dimensions for evaluating the communication performance of a single link: bit error rate and throughput. When the modulation and coding parameters are determined, the bit error rate is mainly affected by the accuracy of channel estimation, while the throughput is mainly affected by the bit error rate and the number of information bits sent. For channel estimation of communication signals in the delayed Doppler domain, a channel estimation method similar to perception can also be used. In the technical solution of the present application, since the number of resources is determined, the throughput of the communication service mainly depends on the bit error rate and the MCS parameters. Since the delayed Doppler domain pilot can better estimate the communication channel, the interference elimination can then be used to reduce the interference of the pilot to the data, so good data demodulation performance can be achieved at a high signal-to-noise ratio.

The following embodiment 1 introduces a pilot block configuration process applicable to a scenario where perception tasks are prioritized; embodiment 2 introduces a pilot block configuration process applicable to a scenario where communication tasks are prioritized.

Embodiment 1

Embodiment 1 is applicable to the scenario of perception task priority. This embodiment mainly solves the problem of how to achieve the unification of communication and perception indicators by using the same communication perception signal in the ISAC system, and the embodiment includes the following steps.

step one:

The ISAC transmitter determines the sizes of M and N, ie, the synaesthesia frame size, according to the system's perception resolution index, where M is determined by the delay resolution and N is determined by the Doppler resolution.

To reduce overhead, the protocol can preconfigure a set of frame structure combinations, given in the form of a list with an index, as shown in Table As shown in Grid 1.

Table 1 Frame structure configuration table

For the communication counterpart, the ISAC transmitter indicates the specific value of the frame structure configuration, or its index, to the communication receiving side in the following ways: 1) synchronization signal (implicit) indication; 2) explicit indication in PBCH; 3) DCI explicit indication in PDCCH; 4) explicit indication in SIB; 5) explicit indication in RRC.

For the sensing peer, single-station sensing does not require indication. For multi-station sensing, the ISAC transmitter indicates the specific value of the frame structure configuration, or its index, to the communication receiving side in the following ways: 1) Forwarded to the sensing peer through the base station or dedicated SCN configuration. Sent through the communication link (if any) between the ISAC transmitter and the sensing peer. And the indication can be carried out in the same way as 1)-5) in the previous paragraph.

Step 2 includes two options: Option 1 and Option 2.

Option 1: The ISAC transmitter sends a triggering 1-bit message to activate the transmission of the synaesthesia frame.

This information can be sent in the Master Information Block (MIB) in PBCH, synchronization signal, SIB in Physical Downlink Shared Channel (PDSCH)/PDCCH, RRC, DCI, Media Access Control Control Element (MAC CE), reference signal, or Sidelink Control Information (SCI) in Physical Sidelink Control Channel (PSCCH).

The communication receiving side is pre-configured with a capability identifier when it leaves the factory. Upon receiving the trigger signaling, the communication receiving side sends its own capability reporting message to the ISAC transmitter, which can be a capability identifier. This information can be sent in a message in the RACH, or in the RACH Preamble, or in the RRC, UCI, or SCI (sidelink) in the PDSCH/PDCCH.

The ISAC transmitter receives the capability reporting message and selects appropriate _MP and _NP according to the processing capability of the corresponding receiving end.

Option 2: The ISAC transmitter sends signaling to configure _MP and _NP to activate the transmission of synaesthesia frames.

This information can be sent in the MIB in PBCH, synchronization signals, or SIB in PDSCH/PDCCH, RRC, DCI, MAC CE, reference signals, or SCI in PSCCH.

The communication receiving side is pre-configured with a capability identifier when it leaves the factory. After receiving the _MP and _NP configured by signaling, the communication receiving side sends a 1-bit indication identifier to the ISAC transmitter, such as 0 for confirmation (ACK) and 1 for negation (NACK), indicating whether the current _MP and _NP are within the processing capability range. This information can be sent in a message in the RACH, or in the random access preamble (RACH Preamble), or in the RRC in the PDSCH/PDCCH, uplink control information (Uplink Control Information, UCI), or SCI (sidelink).

After the ISAC transmitter receives the 1-bit indication identification message, if it is 0, no processing is required; if it is 1, a smaller _MP and N _P are reselected.

The ISAC system configures the selected _MP and _NP , as well as the pilot block power, and sends them to the communication receiving side.

For simple implementation, the protocol may preconfigure an index table, as shown in Table 2. Table 2 may be preconfigured by the protocol, or may be configured by the ISAC sending side to the communication/perception receiving side through RRC.

Table 2 Pilot block configuration table

For the communication counterpart, the ISAC transmitter indicates the specific value of the pilot block configuration, or its index, to the communication receiving side in the following ways: 1) synchronization signal (implicit) indication; 2) explicit indication in PBCH; 3) DCI explicit indication in PDCCH; 4) explicit indication in SIB; 5) explicit indication in RRC.

For the perception peer, single-station perception does not require indication. Multi-station perception requires the ISAC transmitter to indicate the specific value of the pilot block configuration, or its index, to the perception receiving side in the following ways: 1) Forwarded to the perception peer through the base station or dedicated SCN configuration. Sent through the communication link between the ISAC transmitter and the perception peer (if any). And the instructions can be indicated in the same way as in 1)-5) of the previous paragraph.

Step 3

The communication receiving side demodulates and decodes the communication data according to the configuration of the ISAC transmitter, and determines whether the configuration needs to be adjusted according to the target bit error rate indicated by the ISAC transmitter. The target bit error rate may be indicated in step one.

Assume that the actual bit error rate recorded by the receiving side is E _t . According to whether the actual bit error rate is less than the target bit error rate, the communication receiving side sends a 1-bit feedback indication message to the ISAC transmitter. For example, 1 indicates E _t ≥ E _l , 0 indicates E _t < E _l , and l is the frame structure configuration index currently used.

Step 4:

The ISAC transmitter adjusts the power allocation between the pilot and data according to the feedback message from the communication receiver.

If the received feedback indication message is 0, continue to use the current configuration.

If the received feedback indication message is 1, the power allocation between the pilot and the data is adjusted to reduce the pilot block power and/or increase the data block power.

Case 1: The ISAC transmitter reconfigures a set of pilot block power and data block power from Table 2 to achieve a reduction in pilot block power and/or an increase in data block power.

Case 2: The ISAC transmitter sends one of the following according to the preconfigured adjustment step size Δp: 1) a 1-bit indication message to reduce the pilot block power; or, 2) a 1-bit indication message to increase the data block power; or, 3) a 2-bit indication message to reduce the pilot block power and increase the data block power.

Assume that the perceived signal-to-noise ratio requirement of the system needs to meet a predefined threshold c, that is, Z ≥ c. Note (6), so after adjustment according to case 1 or case 2, the selected and The following formula needs to be satisfied:

in, Before the perceptual measurement, all are unknown. and It can always be calculated by linear correlation test That is, the perceived signal power. Then use the existing noise estimation technology to estimate the power of interference plus noise, and then calculate the value of Z. By judging the relationship between Z and c, the selection and

Embodiment 2

Embodiment 2 is mainly applied to a communication priority scenario. In this scenario, perception belongs to "best effort". If the perception performance requirement is strict, it can be performed according to embodiment 1. This embodiment includes the following steps.

step one:

The ISAC transmitter determines the size of the synaesthesia frame and the size of the pilot block required for communication according to the communication throughput requirement of the system and the processing capability of the communication receiving side (the processing capability can be determined by option 1 in the first embodiment).

In fact, for the sensing function, M determines the delay resolution, while N determines the Doppler resolution. To reduce the overhead, the protocol can preconfigure a set of frame structure combinations, which are given in the form of a list with an index, which can be represented by Table 3.

Table 3 Frame structure and pilot block configuration table

For the sensing peer, single-station sensing does not require indication. Multi-station sensing requires the ISAC transmitter to indicate the specific value of the pilot block configuration, or its index, to the communication receiving side in the following ways: 1) Forwarded to the sensing peer through the base station or dedicated SCN configuration. Sent through the communication link (if any) between the ISAC transmitter and the sensing peer. And the indication can be carried out in the same way as 1)-5) in the previous paragraph.

Step 2:

The sensing receiving side performs sensing target detection according to the configuration of the ISAC transmitter and calculates the sensing SINR at the same time. And determines whether the configuration needs to be adjusted according to the target sensing SINR Z _l indicated by the ISAC transmitter. According to whether the sensing SINR is less than the target sensing SINR, the sensing receiving side sends a 1-bit feedback indication message to the ISAC transmitter. For example, 1 means Z _l ≥ Z _t , that is, the actual SINR is greater than or equal to the target SINR index; 0 means Z _l < Z _t , that is, the actual SINR is less than the target SINR index, and l is the configuration index currently used.

Step 3:

The ISAC transmitter adjusts its configuration based on the feedback from the sensing receiver.

If the received feedback indication message is 1, the power allocation between the pilot and the data is adjusted.

Case 1: The ISAC transmitter reconfigures a set of pilot block power and data block power from Table 3 to achieve a reduction in pilot block power and/or an increase in data block power.

Case 2: The ISAC transmitter sends, according to the preconfigured adjustment step size Δp: 1) a 1-bit indication message to reduce the pilot block power; or, 2) a 1-bit indication message to increase the data block power; or, 3) a 2-bit indication message to reduce the pilot block power and increase the data block power.

For the communication counterpart, the ISAC transmitter will indicate to the communication receiving side in the following ways according to the frame structure and the specific value of the pilot block reconfiguration, or its index: 1) synchronization signal (implicit) indication; 2) explicit indication in PBCH; 3) DCI explicit indication in PDCCH; 4) explicit indication in SIB; 5) explicit indication in RRC.

For the sensing peer, single-station sensing does not require indication. Multi-station sensing requires the ISAC transmitter to indicate the frame structure and the specific value of the pilot block reconfiguration, or its index, to the communication receiving side in the following ways: 1) Forwarded to the sensing peer through the base station or dedicated SCN configuration. Sent through the communication link (if any) between the ISAC transmitter and the sensing peer. And the indication can be carried out in the same way as 1)-5) in the previous paragraph.

Embodiment 3

In implementation 1 and implementation 2, the sending side may also indicate the following information to the receiving side:

1) _Xp [n, m] used, i.e., information of the perceptual pilot, the information of the perceptual pilot includes at least one of the following: 1) a sequence or a sequence index of the perceptual pilot, the sequence index may be located in a predefined sequence index table, the sequence index table includes a plurality of sequences of perceptual pilots and an index of each sequence of the perceptual pilot; 2) a generation parameter or a generation parameter index of the sequence of the perceptual pilot, the generation parameter index may be located in a predefined generation parameter index table, the generation parameter index table includes a plurality of generation parameters of sequences of the perceptual pilots and an index of each generation parameter.

2) Optionally, indicate the scrambling sequences _Sp [n,m] and _Sd [n,m] used for the perceptual pilot.

The above information may be directly indicated by RRC, or may be pre-configured by the protocol/RRC indicates a configuration table, and the index value is indicated by DCI.

The above is a detailed description of a method for determining the resource size according to an embodiment of the present application in conjunction with FIG2. The following is a detailed description of a method for determining the resource size according to another embodiment of the present application in conjunction with FIG6. It can be understood that the interaction between the receiving end and the transmitting end described from the receiving end is the same as or corresponds to the description of the transmitting end side in the method shown in FIG2. To avoid repetition, the relevant description is appropriately omitted.

Fig. 6 is a schematic diagram of a method for determining resource size according to an embodiment of the present application, which can be applied at a receiving end. As shown in Fig. 6, the method 600 includes the following steps.

S602: The receiving end receives ninth indication information, where the ninth indication information is used to indicate the size of the first resources occupied by the perception pilot and the size of the second resources occupied by the communication perception frame.

S604: The receiving end obtains the communication data in the time-frequency domain and the perception pilot in the delayed Doppler domain according to the size of the first resource and the size of the second resource; wherein the resources occupied by the communication data are the second resources.

The method for determining the resource size provided in the embodiment of the present application, in the case of crossing transform domains, that is, transforming the perception pilot in the delayed Doppler domain to the time-frequency domain, and superimposing and mapping it with the communication data in the time-frequency domain on the time-frequency domain resource grid, the transmitting end notifies the receiving end of the size of the first resource occupied by the perception pilot and the size of the second resource occupied by the communication perception frame, which is conducive to achieving a balance between perception indicators and communication indicators and meeting the perception requirements or communication requirements of the system.

Optionally, as an embodiment, the ninth indication information is further used to indicate a target bit error rate, and the method further includes at least one of the following:

1) The receiving end sends fourth indication information, where the fourth indication information is used for the sending end to continue using the current transmission configuration of the communication perception frame, and the fourth indication information indicates that the actual bit error rate of the receiving end is less than or equal to the target bit error rate.

2) The receiving end sends fifth indication information, and the fifth indication information is used by the transmitting end to reduce the transmission power of the perception pilot and/or increase the transmission power of the communication data, and the fifth indication information indicates that the actual bit error rate of the receiving end is greater than the target bit error rate.

Optionally, as an embodiment, the ninth indication information is further used to indicate a target SINR indicator, and the method further includes at least one of the following:

1) The receiving end sends seventh indication information, where the seventh indication information is used for the sending end to continue to use the current transmission configuration of the communication perception frame, and the seventh indication information indicates that the actual SINR of the receiving end is greater than the target SINR indicator.

2) The receiving end sends an eighth indication information, where the eighth indication information is used by the transmitting end to reduce the transmission power of the perception pilot and/or increase the transmission power of the communication data, and the eighth indication information indicates that the actual SINR of the receiving end is less than or equal to the target SINR indicator.

The resource size determination method provided in the embodiment of the present application may be executed by a resource size determination device. In the embodiment of the present application, the resource size determination device executing the resource size determination method is taken as an example to illustrate the resource size determination device provided in the embodiment of the present application.

Fig. 7 is a schematic diagram of a structure of a device for determining resource size according to an embodiment of the present application, which may correspond to a transmitting end in other embodiments. The device may be a terminal or a network side device, as shown in Fig. 7, the device 700 includes the following modules.

The determination module 702 is used to determine the size of the first resources occupied by the perception pilot and the size of the second resources occupied by the communication perception frame.

The communication module 704 is used to transform the perception pilot in the delayed Doppler domain to the time-frequency domain according to the size of the first resource and the size of the second resource, and superimpose and map it with the communication data in the time-frequency domain on the time-frequency domain resource grid; wherein the resources occupied by the communication data are the second resources.

The resource size determination device provided in the embodiment of the present application, in the case of cross-transformation domain, that is, the delayed Doppler domain perception pilot is transformed into the time-frequency domain, and superimposed and mapped with the communication data in the time-frequency domain on the time-frequency domain resource grid. The transmitting end determines the size of the first resource occupied by the perception pilot and the size of the second resource occupied by the communication perception frame, which is conducive to achieving a balance between the perception index and the communication index, and meets the perception requirements or communication requirements of the system.

Optionally, as an embodiment, the determination module 702 is used to determine the size of the first resources occupied by the perception pilot and the size of the second resources occupied by the communication perception frame according to the perception priority and/or the communication priority.

Optionally, as an embodiment, the determination module 702 is used to determine the size of the second resources occupied by the communication perception frame according to a perception resolution index, where the perception resolution index includes a delay resolution index and a Doppler resolution index; and determine the size of the first resources occupied by the perception pilot according to the processing capability of the receiving end.

Optionally, as an embodiment, the determination module 702 is used to determine the size of the second resource occupied by the communication perception frame from the frame structure configuration table according to the perception resolution index; wherein the frame structure configuration table includes multiple resource sizes of the communication perception frame and an index of each resource size.

Optionally, as an embodiment, the determination module 702 is used to determine the size of the first resource occupied by the perception pilot from the pilot block configuration table according to the processing capability of the receiving end; wherein the pilot block configuration table includes multiple resource sizes of the perception pilot, the index of each resource size, the transmission power corresponding to each resource size, and the transmission power of the communication data corresponding to each resource size.

Optionally, as an embodiment, the communication module 704 is also used to send a first indication information, wherein the first indication information is used to activate the transmission of the communication perception frame; and receive the processing capability information, wherein the processing capability information is sent by the receiving end when the first indication information is received.

Optionally, as an embodiment, the communication module 704 is also used to send second indication information, the second indication information includes the size of the first resource, and the second indication information is used to activate the transmission of the communication perception frame; if negative information is received, continue to send the second indication information, the second indication information includes the reduced size of the first resource, until the confirmation information from the receiving end is received.

Optionally, as an embodiment, the communication module 704 is also used to send third indication information to the receiving end, and the third indication information includes at least one of the following: 1) the size of the second resource or the index of the second resource; 2) the target bit error rate corresponding to the second resource; 3) the size of the first resource or the index of the first resource.

Optionally, as an embodiment, the communication module 704 is further used for at least one of the following:

1) upon receiving fourth indication information, continue to use the current transmission configuration of the communication awareness frame, wherein the fourth indication information indicates that the actual bit error rate of the receiving end is less than or equal to the target bit error rate.

2) upon receiving fifth indication information, reducing the transmission power of the perception pilot and/or increasing the transmission power of the communication data, wherein the fifth indication information indicates that the actual bit error rate of the receiving end is greater than the target bit error rate.

Optionally, as an embodiment, reducing the transmit power of the perception pilot and/or increasing the transmit power of the communication data includes one of the following:

Optionally, as an embodiment, the reduced transmission power of the perception pilot and/or the increased transmission power of the communication data satisfies the following formula:

Where, Z is the SINR index; c is the threshold; i is the number of the echo path; L is the number of echo paths; h _i is the channel gain of the i-th path; ρ _0i is the inner product of the pilot and data of the normalized line of sight path of the echo; h ₀ is the channel gain of the 0-th path; is the transmit power of the perception pilot; is the transmission power of the communication data; is a very small constant, is a very small constant, ξ is the inner product of the normalized line-of-sight pilot and noise; M and N are the sizes of the second resource; γ is the signal-to-noise ratio of the system.

Where, Z is the SINR index; is the transmission power of the communication data; _h0 is the channel gain of the 0th path; c is the threshold; _ρ0i is the inner product of the pilot and data of the normalized line of sight path of the echo; _MP and _NP are the sizes of the first resource; M and N are the sizes of the second resource; is the transmission power of the perception pilot; i is the number of the echo path; L is the number of echo paths; h _i is the channel gain of the ith path; ψ _0i is the inner product of the pilot of the line-of-sight path and the pilot of the non-line-of-sight path of the echo; ξ is the inner product of the normalized line-of-sight path pilot and noise; σ is the standard deviation of the noise random variable.

Optionally, as an embodiment, the determination module 702 is used to determine the size of the first resources occupied by the perception pilot and the size of the second resources occupied by the communication perception frame according to the communication throughput demand indicator and the processing capability of the receiving end.

Optionally, as an embodiment, the determination module 702 is used to determine the size of the first resource occupied by the perception pilot and the size of the second resource occupied by the communication perception frame from the frame structure and pilot block configuration table according to the communication throughput demand index and the processing capability of the receiving end; wherein the frame structure and pilot block configuration table includes: multiple resource sizes of the perception pilot, the index of each resource size, the size of the second resource corresponding to each resource size, the target SINR index corresponding to each resource size, the transmission power corresponding to each resource size, and the transmission power of the communication data corresponding to each resource size.

Optionally, as an embodiment, the communication module 704 is also used to send sixth indication information to the receiving end, and the sixth indication information includes at least one of the following: 1) the size of the second resource or the index of the second resource; 2) the size of the first resource or the index of the first resource; 3) the target SINR indicator corresponding to the first resource and the second resource.

1) upon receiving the seventh indication information, continue to use the current transmission configuration of the communication awareness frame, wherein the seventh indication information indicates that the actual SINR of the receiving end is greater than the target SINR indicator.

2) upon receiving eighth indication information, reducing the transmission power of the perception pilot and/or increasing the transmission power of the communication data, wherein the eighth indication information indicates that the actual SINR of the receiving end is less than or equal to the target SINR indicator.

Optionally, as an embodiment, the third indication information or the sixth indication information is sent to the receiving end through at least one of the following: synchronization signal; PBCH; DCI in PDCCH; SIB; RRC; network side device or dedicated perception control node SCN forwarding.

Optionally, as an embodiment, the communication module 704 is further configured to indicate to the receiving end at least one of the following: 1) information of the perceptual pilot, the perceptual pilot information including at least one of the following: a sequence or a sequence index of the perceptual pilot sequence; a generation parameter or a generation parameter index of the perceptual pilot sequence; 2) a scrambling sequence of the perceptual pilot.

According to the device 700 of the embodiment of the present application, the process of the method 200 corresponding to the embodiment of the present application can be referred to, and the various units/modules in the device 700 and the above-mentioned other operations and/or functions are respectively for implementing the corresponding processes in the method 200, and can achieve the same or equivalent technical effects. For the sake of brevity, they will not be repeated here.

The resource size determination device in the embodiment of the present application may be an electronic device, such as an electronic device with an operating system, or a component in the electronic device, such as an integrated circuit or a chip. The electronic device may be a terminal, or may be other devices other than a terminal. Exemplarily, the terminal may include but is not limited to the types of terminal 11 listed above, and other devices may be servers, network attached storage (NAS), etc., which are not specifically limited in the embodiment of the present application.

Fig. 8 is a schematic diagram of a structure of a device for determining resource size according to an embodiment of the present application, which may correspond to a receiving end in other embodiments. The device may be a terminal or a network side device, as shown in Fig. 8, the device 800 includes the following modules.

The communication module 802 is used to receive ninth indication information, where the ninth indication information is used to indicate the size of the first resources occupied by the perception pilot and the size of the second resources occupied by the communication perception frame.

The communication module 802 is further used to obtain the communication data in the time-frequency domain and the perception pilot in the delayed Doppler domain according to the size of the first resource and the size of the second resource; wherein the resources occupied by the communication data are the second resources.

Optionally, as an embodiment, the ninth indication information is further used to indicate a target bit error rate, and the communication module 802 is further used for at least one of the following:

1) Sending fourth indication information, where the fourth indication information is used for the sending end to continue using the current transmission configuration of the communication perception frame, and the fourth indication information indicates that the actual bit error rate of the receiving end is less than or equal to the target bit error rate.

2) Sending fifth indication information, wherein the fifth indication information is used by the transmitting end to reduce the transmission power of the perception pilot and/or increase the transmission power of the communication data, and the fifth indication information indicates that the actual bit error rate of the receiving end is greater than the target bit error rate.

Optionally, as an embodiment, the ninth indication information is further used to indicate a target SINR indicator, and the communication module 802 is further used for at least one of the following:

1) Sending seventh indication information, where the seventh indication information is used for the transmitting end to continue to use the current transmission configuration of the communication perception frame, and the seventh indication information indicates that the actual SINR of the receiving end is greater than the target SINR indicator.

2) Sending eighth indication information, where the eighth indication information is used by the transmitting end to reduce the transmission power of the perception pilot and/or increase the transmission power of the communication data, and the eighth indication information indicates that the actual SINR of the receiving end is less than or equal to the target SINR indicator.

According to the device 800 of the embodiment of the present application, the process of the method 600 corresponding to the embodiment of the present application can be referred to, and the various units/modules in the device 800 and the above-mentioned other operations and/or functions are respectively for implementing the corresponding processes in the method 600, and can achieve the same or equivalent technical effects. For the sake of brevity, they will not be repeated here.

The resource size determination device provided in the embodiment of the present application can implement the various processes implemented by the method embodiments of Figures 2 to 6 and achieve the same technical effect. To avoid repetition, it will not be repeated here.

Optionally, as shown in FIG. 9 , the embodiment of the present application further provides a communication device 900, including a processor 901 and a memory 902, the memory 902 stores a program or instruction that can be run on the processor 901, for example, when the communication device 900 is a terminal, the program or instruction is executed by the processor 901 to implement the various steps of the above-mentioned resource size determination method embodiment, and can achieve the same technical effect. When the communication device 900 is a network side device, the program or instruction is executed by the processor 901 to implement the various steps of the above-mentioned resource size determination method embodiment, and can achieve the same technical effect, to avoid repetition, it will not be repeated here.

The embodiment of the present application also provides a terminal, including a processor and a communication interface, the processor is used to determine the size of the first resource occupied by the perception pilot and the size of the second resource occupied by the communication perception frame, and the communication interface is used to transform the perception pilot in the delayed Doppler domain to the time-frequency domain according to the size of the first resource and the size of the second resource, and map it on the time-frequency domain resource grid with the communication data in the time-frequency domain; wherein the resource occupied by the communication data is the second resource. Alternatively, the communication interface is used to receive ninth indication information, and the ninth indication information is used to indicate the size of the first resource occupied by the perception pilot and the size of the second resource occupied by the communication perception frame; according to the size of the first resource and the size of the second resource, the communication data in the time-frequency domain and the perception pilot in the delayed Doppler domain are obtained; wherein the resource occupied by the communication data is the second resource. This terminal embodiment corresponds to the above-mentioned terminal side method embodiment, and each implementation process and implementation method of the above-mentioned method embodiment can be applied to the terminal embodiment, and can achieve the same technical effect. Specifically, Figure 10 is a schematic diagram of the hardware structure of a terminal implementing an embodiment of the present application.

The terminal 1000 includes but is not limited to: a radio frequency unit 1001, a network module 1002, an audio output unit 1003, an input unit 1004, a sensor 1005, a display unit 1006, a user input unit 1007, an interface unit 1008, a memory 1009 and at least some of the components of a processor 1010.

Those skilled in the art can understand that the terminal 1000 can also include a power supply (such as a battery) for supplying power to each component, and the power supply can be logically connected to the processor 1010 through a power management system, so as to implement functions such as charging, discharging, and power consumption management through the power management system. The terminal structure shown in FIG10 does not constitute a limitation on the terminal, and the terminal can include more or fewer components than shown in the figure, or combine certain components, or arrange components differently, which will not be described in detail here.

It should be understood that in the embodiment of the present application, the input unit 1004 may include a graphics processing unit (GPU) 10041 and a microphone 10042, and the graphics processor 10041 processes the image data of the static picture or video obtained by the image capture device (such as a camera) in the video capture mode or the image capture mode. The display unit 1006 may include a display panel 10061, and the display panel 10061 may be configured in the form of a liquid crystal display, an organic light emitting diode, etc. The user input unit 1007 includes a touch panel 10071 and at least one of other input devices 10072. The touch panel 10071 is also called a touch screen. The touch panel 10071 may include two parts: a touch detection device and a touch controller. Other input devices 10072 may include, but are not limited to, a physical keyboard, function keys (such as a volume control key, a switch key, etc.), a trackball, a mouse, and a joystick, which will not be repeated here.

In the embodiment of the present application, after receiving downlink data from the network side device, the RF unit 1001 can transmit the data to the processor 1010 for processing; in addition, the RF unit 1001 can send uplink data to the network side device. Generally, the RF unit 1001 includes but is not limited to an antenna, an amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, etc.

The memory 1009 can be used to store software programs or instructions and various data. The memory 1009 may mainly include a first storage area for storing programs or instructions and a second storage area for storing data, wherein the first storage area may store an operating system, an application program or instruction required for at least one function (such as a sound playback function, an image playback function, etc.), etc. In addition, the memory 1009 may include a volatile memory or a non-volatile memory, or the memory 1009 may include both volatile and non-volatile memories. Among them, the non-volatile memory may be a read-only memory (ROM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), an electrically erasable programmable read-only memory (EEPROM), or a flash memory. The volatile memory may be a random access memory. The memory 1009 in the embodiment of the present application includes but is not limited to these and any other suitable types of memory.

The processor 1010 may include one or more processing units; optionally, the processor 1010 integrates an application processor and a modem processor, wherein the application processor mainly processes operations related to an operating system, a user interface, and application programs, and the modem processor mainly processes wireless communication signals, such as a baseband processor. It is understandable that the modem processor may not be integrated into the processor 1010.

Wherein, the processor 1010 can be used to determine the size of the first resource occupied by the perception pilot and the size of the second resource occupied by the communication perception frame; the radio frequency unit 1001 can be used to transform the perception pilot in the delayed Doppler domain to the time-frequency domain according to the size of the first resource and the size of the second resource, and map it on the time-frequency domain resource grid with the communication data in the time-frequency domain; wherein the resources occupied by the communication data are the second resources. Alternatively, the radio frequency unit 1001 can be used to receive ninth indication information, wherein the ninth indication information is used to indicate the size of the first resource occupied by the perception pilot and the size of the second resource occupied by the communication perception frame; according to the size of the first resource and the size of the second resource, the communication data in the time-frequency domain and the perception pilot in the delayed Doppler domain are obtained; wherein the resources occupied by the communication data are the second resources.

The terminal provided in the embodiment of the present application, in the case of crossing the transform domain, that is, transforming the perception pilot in the delayed Doppler domain to the time-frequency domain, and superimposing and mapping it with the communication data in the time-frequency domain on the time-frequency domain resource grid, determines the size of the first resource occupied by the perception pilot and the size of the second resource occupied by the communication perception frame, which is conducive to achieving a balance between perception indicators and communication indicators and meeting the perception requirements or communication requirements of the system.

The terminal 1000 provided in the embodiment of the present application can also implement the various processes of the above-mentioned resource size determination method embodiment and can achieve the same technical effect. To avoid repetition, it will not be repeated here.

The embodiment of the present application also provides a network side device, including a processor and a communication interface, the processor is used to determine the size of the first resource occupied by the perception pilot and the size of the second resource occupied by the communication perception frame, and the communication interface is used to transform the perception pilot in the delayed Doppler domain to the time-frequency domain according to the size of the first resource and the size of the second resource, and map it on the time-frequency domain resource grid with the communication data in the time-frequency domain; wherein the resource occupied by the communication data is the second resource. Alternatively, the communication interface is used to receive ninth indication information, and the ninth indication information is used to indicate the size of the first resource occupied by the perception pilot and the size of the second resource occupied by the communication perception frame; according to the size of the first resource and the size of the second resource, the communication data in the time-frequency domain and the perception pilot in the delayed Doppler domain are obtained; wherein the resource occupied by the communication data is the second resource. This network side device embodiment corresponds to the above-mentioned network side device method embodiment, and each implementation process and implementation method of the above-mentioned method embodiment can be applied to this network side device embodiment, and can achieve the same technical effect.

Specifically, the embodiment of the present application also provides a network side device. As shown in Figure 11, the network side device 1100 includes: an antenna 111, a radio frequency device 112, a baseband device 113, a processor 114 and a memory 115. The antenna 111 is connected to the radio frequency device 112. In the uplink direction, the radio frequency device 112 receives information through the antenna 111 and sends the received information to the baseband device 113 for processing. In the downlink direction, the baseband device 113 processes the information to be sent and sends it to the radio frequency device 112. The radio frequency device 112 processes the received information and sends it out through the antenna 111.

The method executed by the network-side device in the above embodiment may be implemented in the baseband device 113, which includes a baseband processor.

The baseband device 113 may include, for example, at least one baseband board, on which a plurality of chips are arranged, as shown in FIG11 , one of the chips is, for example, a baseband processor, which is connected to the memory 115 through a bus interface to call The program in the memory 115 executes the network device operations shown in the above method embodiments.

The network side device may also include a network interface 116, which is, for example, a common public radio interface (CPRI).

Specifically, the network side device 1100 of the embodiment of the present application also includes: instructions or programs stored in the memory 115 and executable on the processor 114. The processor 114 calls the instructions or programs in the memory 115 to execute the methods executed by the modules shown in Figure 7 or Figure 8, and achieves the same technical effect. To avoid repetition, it will not be repeated here.

An embodiment of the present application also provides a readable storage medium, on which a program or instruction is stored. When the program or instruction is executed by a processor, each process of the above-mentioned resource size determination method embodiment is implemented, and the same technical effect can be achieved. To avoid repetition, it will not be repeated here.

The processor is the processor in the terminal described in the above embodiment. The readable storage medium may be non-volatile or non-transient. The readable storage medium includes a computer-readable storage medium, such as a computer read-only memory ROM, a random access memory RAM, a magnetic disk or an optical disk.

An embodiment of the present application further provides a chip, which includes a processor and a communication interface, wherein the communication interface is coupled to the processor, and the processor is used to run programs or instructions to implement the various processes of the above-mentioned resource size determination method embodiment, and can achieve the same technical effect. To avoid repetition, it will not be repeated here.

It should be understood that the chip mentioned in the embodiments of the present application can also be called a system-level chip, a system chip, a chip system or a system-on-chip chip, etc.

The embodiment of the present application further provides a computer program/program product, which is stored in a storage medium. The computer program/program product is executed by at least one processor to implement the various processes of the above-mentioned resource size determination method embodiment, and can achieve the same technical effect. To avoid repetition, it will not be repeated here.

An embodiment of the present application also provides a system for determining resource size, including: a terminal and a network side device, wherein the terminal can be used to execute the steps of the resource size determination method as described above, and the network side device can be used to execute the steps of the resource size determination method as described above.

It should be noted that, in this article, the terms "comprise", "include" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprises one..." does not exclude the presence of other identical elements in the process, method, article or device including the element. In addition, it should be noted that the scope of the method and device in the embodiment of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in reverse order according to the functions involved, for example, the described method may be performed in an order different from that described, and various steps may also be added, omitted, or combined. In addition, the features described with reference to certain examples may be combined in other examples.

Through the description of the above implementation methods, those skilled in the art can clearly understand that the above-mentioned embodiment methods can be implemented by means of software plus a necessary general hardware platform, and of course by hardware, but in many cases the former is a better implementation method. Based on such an understanding, the technical solution of the present application, or the part that contributes to the prior art, can be embodied in the form of a computer software product, which is stored in a storage medium (such as ROM/RAM, a magnetic disk, or an optical disk), and includes a number of instructions for enabling a terminal (which can be a mobile phone, a computer, a server, an air conditioner, or a network device, etc.) to execute the methods described in each embodiment of the present application.

The embodiments of the present application are described above in conjunction with the accompanying drawings, but the present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of the present application, ordinary technicians in this field can also make many forms without departing from the purpose of the present application and the scope of protection of the claims, all of which are within the protection of the present application.

Claims

A method for determining resource size, comprising:

The transmitting end determines the size of the first resource occupied by the perception pilot and the size of the second resource occupied by the communication perception frame;

The transmitting end transforms the perception pilot in the delayed Doppler domain to the time-frequency domain according to the size of the first resource and the size of the second resource, and superimposes and maps it with the communication data in the time-frequency domain on the time-frequency domain resource grid; wherein the resources occupied by the communication data are the second resources.
The method according to claim 1, wherein the transmitting end determines the size of the first resource occupied by the perception pilot and the size of the second resource occupied by the communication perception frame, comprising:

The transmitting end determines the size of the first resources occupied by the perception pilot and the size of the second resources occupied by the communication perception frame according to the perception priority and/or the communication priority.
The method according to claim 1, wherein the transmitting end determines the size of the first resource occupied by the perception pilot and the size of the second resource occupied by the communication perception frame, comprising:

The transmitting end determines the size of the second resource occupied by the communication perception frame according to a perception resolution index, where the perception resolution index includes a delay resolution index and a Doppler resolution index;

The transmitting end determines the size of the first resource occupied by the sensing pilot according to the processing capability of the receiving end.
The method according to claim 3, wherein the transmitting end determines the size of the second resource occupied by the communication perception frame according to the perception resolution indicator, comprising:

The transmitting end determines the size of the second resource occupied by the communication perception frame from the frame structure configuration table according to the perception resolution index; wherein the frame structure configuration table includes multiple resource sizes of the communication perception frame and the index of each resource size.
The method according to claim 3, wherein the transmitting end determines the size of the first resource occupied by the perception pilot according to the processing capability of the receiving end, comprising:

The transmitting end determines the size of the first resource occupied by the perceptual pilot from the pilot block configuration table according to the processing capability of the receiving end; wherein the pilot block configuration table includes multiple resource sizes of the perceptual pilot, the index of each resource size, the transmission power corresponding to each resource size, and the transmission power of the communication data corresponding to each resource size.
The method according to claim 5, wherein before the transmitting end determines the size of the first resource occupied by the perceptual pilot from the pilot block configuration table according to the processing capability of the receiving end, the method further comprises:

The transmitting end sends first indication information, where the first indication information is used to activate transmission of a communication awareness frame;

The sending end receives the processing capability information, where the processing capability information is sent by the receiving end when the receiving end receives the first indication information.
The method according to claim 5, wherein before the transmitting end determines the size of the first resource occupied by the perceptual pilot from the pilot block configuration table according to the processing capability of the receiving end, the method further comprises:

The transmitting end sends second indication information, where the second indication information includes a size of the first resource, and the second indication information is used to activate transmission of a communication awareness frame;

If the transmitting end receives negative information, the transmitting end continues to send the second indication information, where the second indication information includes the reduced size of the first resource, until receiving confirmation information from the receiving end.
The method according to claim 4 or 5, wherein the method further comprises: the sending end sending third indication information to the receiving end, the third indication information comprising at least one of the following:

The size of the second resource or the index of the second resource;

a target bit error rate corresponding to the second resource;

The size of the first resource or the index of the first resource.
The method according to claim 8, wherein the method further comprises at least one of the following:

When the transmitting end receives the fourth indication information, it continues to use the current transmission of the communication perception frame. input configuration, the fourth indication information indicates that the actual bit error rate of the receiving end is less than or equal to the target bit error rate;

The transmitting end reduces the transmission power of the perception pilot and/or increases the transmission power of the communication data when receiving the fifth indication information, and the fifth indication information indicates that the actual bit error rate of the receiving end is greater than the target bit error rate.
The method according to claim 9, wherein the reducing the transmit power of the perception pilot and/or increasing the transmit power of the communication data comprises one of the following:

Reselecting the transmit power of the perception pilot and/or the transmit power of the communication data from a pilot block configuration table; wherein the pilot block configuration table includes multiple resource sizes of the perception pilot, an index of each resource size, a transmit power corresponding to each resource size, and a transmit power of the communication data corresponding to each resource size;

According to a preconfigured adjustment step size, the transmit power of the perception pilot is reduced and/or the transmit power of the communication data is increased.
The method according to claim 9, wherein

The reduced transmission power of the perception pilot and/or the increased transmission power of the communication data satisfy the following formula:

Where, Z is the SINR index; c is the threshold; i is the number of the echo path; L is the number of echo paths; h i is the channel gain of the i-th path; ρ 0i is the inner product of the pilot and data of the normalized line of sight path of the echo; h 0 is the channel gain of the 0-th path; is the transmit power of the perception pilot; is the transmission power of the communication data; is a very small constant, is a very small constant, ξ is the inner product of the normalized line-of-sight pilot and noise; M and N are the sizes of the second resource; γ is the signal-to-noise ratio of the system;

or,

The reduced transmission power of the perception pilot and/or the increased transmission power of the communication data satisfy the following formula:

Where, Z is the SINR index; is the transmission power of the communication data; h0 is the channel gain of the 0th path; c is the threshold; ρ0i is the inner product of the pilot and data of the normalized line of sight path of the echo; MP and NP are the sizes of the first resource; M and N are the sizes of the second resource; is the transmission power of the perception pilot; i is the number of the echo path; L is the number of echo paths; h i is the channel gain of the ith path; ψ 0i is the inner product of the pilot of the line-of-sight path and the pilot of the non-line-of-sight path of the echo; ξ is the inner product of the normalized line-of-sight path pilot and noise; σ is the standard deviation of the noise random variable.
The method according to claim 1, wherein the transmitting end determines the size of the first resource occupied by the perception pilot and the size of the second resource occupied by the communication perception frame, comprising:

The transmitting end determines the size of the first resource occupied by the perception pilot and the size of the second resource occupied by the communication perception frame according to the communication throughput demand index and the processing capability of the receiving end.
The method according to claim 12, wherein the transmitting end determines the size of the first resource occupied by the perception pilot and the size of the second resource occupied by the communication perception frame according to the communication throughput requirement indicator and the processing capability of the receiving end, comprising:

The transmitting end determines the size of the first resource occupied by the sensing pilot and the size of the second resource occupied by the communication sensing frame from the frame structure and pilot block configuration table according to the communication throughput demand index and the processing capability of the receiving end. Small; wherein the frame structure and pilot block configuration table includes: multiple resource sizes of perception pilots, an index of each resource size, the size of the second resource corresponding to each resource size, a target SINR indicator corresponding to each resource size, a transmission power corresponding to each resource size, and a transmission power of the communication data corresponding to each resource size.
The method according to claim 13, wherein the method further comprises: the transmitting end sending sixth indication information to the receiving end, the sixth indication information comprising at least one of the following:

The size of the second resource or the index of the second resource;

The size of the first resource or the index of the first resource;

A target SINR indicator corresponding to the first resource and the second resource.
The method according to claim 14, wherein the method further comprises at least one of the following:

The transmitting end continues to use the current transmission configuration of the communication perception frame when receiving the seventh indication information, and the seventh indication information indicates that the actual SINR of the receiving end is greater than the target SINR indicator;

The transmitting end reduces the transmission power of the perception pilot and/or increases the transmission power of the communication data when receiving the eighth indication information, and the eighth indication information indicates that the actual SINR of the receiving end is less than or equal to the target SINR indicator.
According to the method of claim 8 or 14, the third indication information or the sixth indication information is sent to the receiving end through at least one of the following: synchronization signal; PBCH; DCI in PDCCH; SIB; RRC; network side device or dedicated perception control node SCN forwarding.
The method according to any one of claims 1 to 16, wherein the method further comprises: the transmitting end indicating to the receiving end at least one of the following:

The information of the perceptual pilot includes at least one of the following: a sequence or a sequence index of the perceptual pilot; a generation parameter or a generation parameter index of the sequence of the perceptual pilot;

The scrambling sequence of the perceptual pilot.
A method for determining resource size, comprising:

The receiving end receives ninth indication information, where the ninth indication information is used to indicate the size of the first resource occupied by the perception pilot and the size of the second resource occupied by the communication perception frame;

The receiving end obtains the communication data in the time-frequency domain and the perception pilot in the delayed Doppler domain according to the size of the first resource and the size of the second resource; wherein the resources occupied by the communication data are the second resources.
The method according to claim 18, wherein the ninth indication information is further used to indicate a target bit error rate, and the method further comprises at least one of the following:

The receiving end sends fourth indication information, where the fourth indication information indicates that an actual bit error rate of the receiving end is less than or equal to the target bit error rate;

The receiving end sends fifth indication information, where the fifth indication information indicates that an actual bit error rate of the receiving end is greater than the target bit error rate.
The method according to claim 18, wherein the ninth indication information is further used to indicate a target SINR indicator, and the method further comprises at least one of the following:

The receiving end sends seventh indication information, where the seventh indication information indicates that the actual SINR of the receiving end is greater than the target SINR indicator;

The receiving end sends eighth indication information, where the eighth indication information indicates that the actual SINR of the receiving end is less than or equal to the target SINR indicator.
A device for determining resource size, applied to a sending end, comprising:

A determination module, used to determine the size of the first resource occupied by the perception pilot and the size of the second resource occupied by the communication perception frame;

A communication module, configured to transform the perception pilot in the delayed Doppler domain into the time-frequency domain according to the size of the first resource and the size of the second resource, and map the perception pilot in the time-frequency domain on a resource grid in the time-frequency domain by superposition with the communication data in the time-frequency domain; The resources occupied by the communication data are the second resources.
The apparatus according to claim 21, wherein the determining module is used to

Determine the size of the second resource occupied by the communication perception frame according to a perception resolution index, wherein the perception resolution index includes a delay resolution index and a Doppler resolution index;

The size of the first resource occupied by the perception pilot is determined according to the processing capability of the receiving end.
The device according to claim 21, wherein the determination module is used to determine the size of the first resources occupied by the perception pilot and the size of the second resources occupied by the communication perception frame according to the communication throughput demand indicator and the processing capability of the receiving end.
A device for determining resource size, applied to a receiving end, comprising:

A communication module, used to receive ninth indication information, where the ninth indication information is used to indicate the size of the first resource occupied by the perception pilot and the size of the second resource occupied by the communication perception frame;

The communication module is further used to obtain the communication data in the time-frequency domain and the perception pilot in the delayed Doppler domain according to the size of the first resource and the size of the second resource; wherein the resources occupied by the communication data are the second resources.
The apparatus according to claim 24, wherein the ninth indication information is further used to indicate a target bit error rate, and the communication module is further used for at least one of the following:

Sending fourth indication information, where the fourth indication information indicates that an actual bit error rate of the receiving end is less than or equal to the target bit error rate;

Send fifth indication information, where the fifth indication information indicates that an actual bit error rate of the receiving end is greater than the target bit error rate.
The apparatus according to claim 24, wherein the ninth indication information is further used to indicate a target SINR indicator, and the communication module is further used for at least one of the following:

Sending seventh indication information, where the seventh indication information indicates that the actual SINR of the receiving end is greater than the target SINR indicator;

Sending eighth indication information, where the eighth indication information indicates that the actual SINR of the receiving end is less than or equal to the target SINR indicator.
A terminal comprises a processor and a memory, wherein the memory stores a program or instruction that can be run on the processor, and when the program or instruction is executed by the processor, the steps of the method according to any one of claims 1 to 20 are implemented.
A network side device comprises a processor and a memory, wherein the memory stores a program or instruction that can be run on the processor, and when the program or instruction is executed by the processor, the steps of the method according to any one of claims 1 to 20 are implemented.
A readable storage medium stores a program or instruction, and when the program or instruction is executed by a processor, the steps of the method according to any one of claims 1 to 20 are implemented.