Communication and perception integration method and system for base station and user cooperation

Abstract

The invention provides a base station and user cooperative communication and perception integrated method and system, and relates to the technical field of wireless communication. The method comprises the following steps: a strategy generation module of a base station generates a perception anchor point selection and perception reference signal time-frequency resource scheduling strategy, and a scheduling module of the base station generates scheduling information and signaling according to the generation strategy and transmits the scheduling information and signaling to a scheduling module of a user terminal to realize information interaction; the strategy execution module of the base station performs time-frequency resource multiplexing on the communication signal and the sensing reference signal according to the generation strategy, generates a communication and sensing integrated signal, and transmits the communication and sensing integrated signal to the strategy execution module of the user terminal; and the data processing module of the user measures the characteristic parameters of the sensing reference signals and transmits the characteristic parameters to the data processing module of the base station, and the target position is estimated through a sensing data aggregation result. By adopting the method and the device, the user terminal serving as the sensing anchor point can realize communication and sensing functions in the same BWP, and the efficiency of integration of B5G / 6G network communication and sensing is effectively improved.

Description

Technical Field

[0001] The present invention relates to the field of wireless communication technologies, and in particular to a method and system for integrating communication and perception between a base station and a user. Background Art

[0002] The communication and perception integration technology aims to achieve the integration of communication and perception functions through hardware sharing, wireless resource reuse and unified waveform design. At present, B5G / 6G networks have shown great potential in the integration of communication and perception, but B5G / 6G base stations have certain disadvantages compared with general radar sites in terms of environmental perception and target detection. On the one hand, the transmission power of B5G / 6G base stations is usually much smaller than that of traditional radar sites, which greatly limits the single-station perception distance of B5G / 6G and significantly weakens its coverage and detection capabilities of the surrounding environment; on the other hand, the time, frequency, space and energy wireless resources of a single base station are limited, and the communication and perception functions need to compete or share wireless resources, making it difficult for a single base station to continuously allocate enough wireless resources to achieve high-precision target perception. In order to meet the above challenges, it is urgent to carry out research on the integration of communication and perception technology for base station and user collaboration, give full play to the wireless resource advantages and multi-dimensional perception advantages of the massive users of B5G / 6G networks, and improve the system perception capabilities.

[0003] At present, the research on the integration of interawareness of multi-node collaboration is mainly focused on the collaboration of multiple base stations, such as the multi-base station collaborative target positioning and multi-base station collaborative perception and communication in the existing 5G network, while the research on the integration of interawareness technology for base station and user collaboration is still very scarce. At present, the communication and perception integration technology for base station and user collaboration includes: multi-base interawareness integration method, multi-base station collaborative positioning technology, and multi-base station collaborative communication and perception integration technology; among them, the multi-base interawareness integration method mainly uses beamforming technology to minimize the perception CRB to improve the perception performance of the multi-base station interawareness integration system, but does not discuss in detail the collaborative communication and perception mechanism between base stations and users, as well as the wireless resource reuse method of communication and perception functions; the multi-base station collaborative positioning technology requires the user terminal to cooperate in measuring reference signals from different base stations, but in the implementation process, the user usually initiates a positioning request first, and then the centralized unit dispatches multiple base stations to provide positioning services to the user who initiated the request. This mechanism only involves multiple base stations working together to locate specific users, but does not involve the collaborative perception of the base stations and users' surrounding environments and targets. A communication and perception mechanism involving macro base stations and micro base stations is proposed for the integrated communication and perception technology of multi-base station collaboration. However, the micro base station uses the target echo signal to perceive the target, which does not involve the collaborative perception between the base station and the user. Summary of the invention

[0004] In order to solve the technical problem in the prior art that a single base station is difficult to continuously allocate sufficient wireless resources to achieve high-precision target perception, the embodiment of the present invention provides a communication and perception integration method and system for base station and user collaboration. The technical solution is as follows:

[0005] On the one hand, a communication and perception integration method for cooperation between a base station and a user is provided, the method is implemented by a communication and perception integration device for cooperation between a base station and a user, and the method includes:

[0006] S1. The strategy generation module of the base station selects a part of users from the user terminals served by the base station as sensing anchor points, generates a sensing reference signal time-frequency resource scheduling strategy for each user terminal as a sensing anchor point, schedules part of the time-frequency resources from the time-frequency resources of the user terminal as the sensing anchor point to the sensing reference signal according to the scheduling strategy, and transmits the time-frequency resource scheduling strategy to the scheduling module of the base station;

[0007] S2. The scheduling module of the base station generates scheduling information and signaling of the time-frequency resource scheduling strategy; transmits the scheduling information and signaling to the scheduling module of the user terminal to realize information interaction between the base station and the user;

[0008] S3, the policy execution module of the base station generates a communication and perception integrated signal by multiplexing the time-frequency resources of the communication signal and the perception reference signal according to the time-frequency resource scheduling strategy; and transmits the communication and perception integrated signal to the policy execution module of the user terminal;

[0009] S4. The policy execution module of the user terminal separates the communication signal and the perception reference signal from the communication and perception integrated signal according to the received scheduling information and signaling, and transmits the separated communication signal and the perception reference signal to the data processing module of the user terminal;

[0010] S5. The data processing module of the user terminal measures the delay, Doppler frequency shift and phase characteristic parameters of the received perception reference signal, and demodulates the received communication signal; transmits the characteristic parameters of the perception reference signal to the data processing module of the base station, and obtains the convergence result by performing perception data convergence on the characteristic parameters of the perception reference signal; and estimates the position and velocity parameters of the target based on the convergence result.

[0011] Optionally, the strategy generation module of the base station is used to construct a multi-objective planning framework for joint optimization of perception anchor point selection and perception reference signal time-frequency resources;

[0012] The multi-objective planning framework is used to optimize the selection of perception anchor points and the parameters of the comb spectrum of the time-frequency resources of the perception reference signal.

[0013] Optionally, the optimization objectives of the multi-objective planning framework include constraints including maximizing system radar perception mutual information, maximizing system user maximum perception interval, and user communication utility.

[0014] Optionally, the objective function of maximizing the system radar perception mutual information is expressed by the following formula (1):

[0015] (1)

[0016] in, Select indicator variables for perceptual anchors, Indicates the number of user terminals; Indicates that the i-th user terminal is selected as the sensing anchor point in the t-th scheduling period; Indicates that it is not selected as a perception anchor; It represents the comb spectrum parameter of the reference signal time-frequency resource perceived by the i-th user terminal in the t-th scheduling period, and its value range is Depends on system configuration; Indicates the subcarrier spacing of the sensing reference signal on one physical resource block; It indicates the number of symbols occupied on one physical resource block; represents the received signal to interference and noise ratio of the reference signal perceived by the i-th user terminal in the t-th scheduling period; represents the total number of subcarrier waves allocated to the i-th user terminal; It represents the total number of symbols allocated to the i-th user terminal in the t-th scheduling period.

[0017] Optionally, the objective function of maximizing the maximum perception interval of the system user is expressed by the following formula (2):

[0018] (2)

[0019] in, represents the time when the i-th user terminal was last selected as the perception anchor point; Indicates the count of the current scheduling period; It represents the time interval from the last time that user terminal i was selected as the sensing anchor point; if user terminal i is selected as the sensing anchor point in the current scheduling period t, then ,Right now .

[0020] Optionally, the constraint condition including the user communication utility is expressed by the following formula (3):

[0021] (3)

[0022] The communication rate reduction ratio of user terminal i due to the perception of reference signal occupying its time-frequency resources does not exceed , ; The threshold value indicating the ratio of signal rate reduction; Indicates that the i-th user terminal is in The total number of symbols allocated in a scheduling period.

[0023] Optionally, the process of solving the optimization problem of the multi-objective programming framework includes:

[0024] Traverse and search for Pareto front solutions; if the Pareto front exists, select any Pareto front solution as the solution to the optimization problem of the multi-objective programming framework; if the Pareto front does not exist, construct a weighted objective function by maximizing the system radar perception mutual information and maximizing the system user maximum perception interval, and obtain the solution to the optimization problem of the multi-objective programming framework by solving the weighted objective function; wherein, the process of constructing a weighted objective function by maximizing the system radar perception mutual information and maximizing the system user maximum perception interval is expressed by the following formula:

[0025] in, represents the normalization coefficient that maximizes the system radar perception mutual information; Represents the normalized coefficient that maximizes the maximum perceptual interval of the system user.

[0026] On the other hand, a base station and a user cooperative communication and perception integrated system is provided, the system is applied to a base station and a user cooperative communication and perception integrated method, the system comprising:

[0027] The base station, the policy generation module for the base station selects a part of users from the user terminals served by the base station as perception anchor points, generates a perception reference signal time-frequency resource scheduling strategy for each user terminal serving as a perception anchor point, and transmits the time-frequency resource scheduling strategy to the scheduling module of the base station; the scheduling module of the base station generates scheduling information and signaling of the time-frequency resource scheduling strategy; transmits the scheduling information and signaling to the scheduling module of the user terminal to realize information interaction between the base station and the user; the policy execution module of the base station generates a communication and perception integrated signal by multiplexing the time-frequency resources of the communication signal and the perception reference signal according to the time-frequency resource scheduling strategy; and transmits the communication and perception integrated signal to the policy execution module of the user terminal;

[0028] The user terminal, a policy execution module for the user terminal, separates the communication signal and the perception reference signal from the communication and perception integrated signal according to the received scheduling information and signaling, and transmits the separated communication signal and the perception reference signal to the data processing module of the user terminal; the data processing module of the user terminal measures the delay, Doppler frequency shift and phase characteristic parameters of the received perception reference signal, and demodulates the received communication signal; transmits the characteristic parameters of the perception reference signal to the data processing module of the base station, and obtains the convergence result by performing perception data convergence on the characteristic parameters of the perception reference signal; and estimates the position and velocity parameters of the target according to the convergence result.

[0029] Optionally, the strategy generation module of the base station is used to construct a multi-objective planning framework for joint optimization of perception anchor point selection and perception reference signal time-frequency resources;

[0030] The multi-objective planning framework is used to optimize the selection of perception anchor points and the parameters of the comb spectrum of the time-frequency resources of the perception reference signal.

[0031] Optionally, the optimization objectives of the multi-objective planning framework include constraints including maximizing system radar perception mutual information, maximizing system user maximum perception interval, and user communication utility.

[0032] Optionally, the objective function of maximizing the system radar perception mutual information is expressed by the following formula (1):

[0033] (1)

[0034] in, Select indicator variables for perceptual anchors; Indicates the number of user terminals; Indicates that the i-th user terminal is selected as the sensing anchor point in the t-th scheduling period; Indicates that it is not selected as a perception anchor; It represents the comb spectrum parameter of the reference signal time-frequency resource perceived by the i-th user terminal in the t-th scheduling period, and its value range is Depends on system configuration; Indicates the subcarrier spacing of the sensing reference signal on one physical resource block; It indicates the number of symbols occupied on one physical resource block; represents the received signal to interference and noise ratio of the reference signal perceived by the i-th user terminal in the t-th scheduling period; represents the total number of subcarrier waves allocated to the i-th user terminal; It represents the total number of symbols allocated to the i-th user terminal in the t-th scheduling period.

[0035] Optionally, the objective function of maximizing the maximum perception interval of the system user is expressed by the following formula (2):

[0036] (2)

[0037] in, represents the time when the i-th user terminal was last selected as the perception anchor point; Indicates the count of the current scheduling period; It represents the time interval from the last time that user terminal i was selected as the sensing anchor point; if user terminal i is selected as the sensing anchor point in the current scheduling period t, then ,Right now .

[0038] Optionally, the constraint condition including the user communication utility is expressed by the following formula (3):

[0039] (3)

[0040] The communication rate reduction ratio of user terminal i due to the perception of reference signal occupying its time-frequency resources does not exceed , ; The threshold value indicating the ratio of signal rate reduction; Indicates that the i-th user terminal is in The total number of symbols allocated in a scheduling period.

[0041] Optionally, the process of solving the optimization problem of the multi-objective programming framework includes:

[0042] Traverse and search for Pareto front solutions; if the Pareto front exists, select any Pareto front solution as the solution to the optimization problem of the multi-objective programming framework; if the Pareto front does not exist, construct a weighted objective function by maximizing the system radar perception mutual information and maximizing the system user maximum perception interval, and obtain the solution to the optimization problem of the multi-objective programming framework by solving the weighted objective function; wherein, the process of constructing a weighted objective function by maximizing the system radar perception mutual information and maximizing the system user maximum perception interval is expressed by the following formula:

[0043]

[0044] in, represents the normalization coefficient that maximizes the system radar perception mutual information; Represents the normalized coefficient that maximizes the maximum perceptual interval of the system user.

[0045] Among them, the multi-objective optimization problem is transformed into a single-objective optimization problem by constructing a weighted objective function.

[0046] On the other hand, a communication and perception integrated device for collaboration between a base station and a user is provided, wherein the communication and perception integrated device for collaboration between a base station and a user comprises: a processor; a memory, wherein the memory stores computer-readable instructions, and when the computer-readable instructions are executed by the processor, any one of the above-mentioned communication and perception integrated methods for collaboration between a base station and a user is implemented.

[0047] On the other hand, a computer-readable storage medium is provided, in which at least one instruction is stored. The at least one instruction is loaded and executed by a processor to implement any one of the above-mentioned methods for integrating communication and perception between base stations and users.

[0048] The beneficial effects brought about by the technical solution provided by the embodiment of the present invention include at least:

[0049] The policy generation module of the base station in the embodiment of the present invention selects a part of users from the user terminals served by the base station as perception anchor points, generates a perception reference signal time-frequency resource scheduling strategy for each user terminal serving as a perception anchor point, schedules part of the time-frequency resources from the time-frequency resources of the user terminal serving as the perception anchor point to the perception reference signal according to the scheduling strategy, and transmits the time-frequency resource scheduling strategy to the scheduling module of the base station; the scheduling module of the base station generates scheduling information and signaling of the time-frequency resource scheduling strategy; transmits the scheduling information and signaling to the scheduling module of the user terminal to realize information interaction between the base station and the user; the policy execution module of the base station generates a communication and perception integrated signal according to the time-frequency resource scheduling strategy by multiplexing the time-frequency resources of the communication signal and the perception reference signal. signal; transmit the communication and perception integrated signal to the policy execution module of the user terminal; the policy execution module of the user terminal separates the communication signal and the perception reference signal from the communication and perception integrated signal according to the received scheduling information and signaling, and transmits the separated communication signal and the perception reference signal to the data processing module of the user terminal; the data processing module of the user terminal measures the delay, Doppler frequency shift and phase characteristic parameters of the received perception reference signal, and demodulates the received communication signal; transmits the characteristic parameters of the perception reference signal to the data processing module of the base station, and obtains the convergence result by performing perception data convergence on the characteristic parameters of the perception reference signal; and estimates the position and velocity parameters of the target according to the convergence result.

[0050] The strategy generation module of the base station of the present invention jointly optimizes the perception anchor point selection and the perception reference signal time-frequency resource scheduling strategy according to a multi-objective planning framework including maximizing the system radar perception mutual information and maximizing the system user maximum perception interval. By scheduling part of the time-frequency resources from the time-frequency resources of the user terminal serving as the perception anchor point to the perception reference signal, it can avoid mutual interference of perception signals between users and enable the user terminal serving as the perception anchor point to realize communication and perception functions in the same BWP, thereby effectively improving the efficiency of communication and perception integration in the B5G / 6G network.

[0051] The embodiments of the present invention can effectively realize the coordinated communication and perception between the base station and the user terminal; by giving full play to the wireless resource advantages, multi-dimensional perception advantages and collaboration advantages of massive user terminals, it provides strong technical support for application scenarios such as smart vehicle networking and low-altitude economy, and has broad application prospects and market potential. BRIEF DESCRIPTION OF THE DRAWINGS

[0052] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0053] Figure 1 It is a flow chart of a communication and perception integration method for cooperation between a base station and a user provided by an embodiment of the present invention;

[0054] Figure 2 It is a schematic diagram of the structure of a communication and perception integrated system for cooperation between a base station and a user provided by an embodiment of the present invention;

[0055] Figure 3 This is a schematic diagram of a first example of configuring a comb spectrum of a perception reference signal time-frequency resource provided by an embodiment of the present invention;

[0056] Figure 4 This is a schematic diagram of a second case of configuring a comb spectrum of a perceptual reference signal time-frequency resource provided by an embodiment of the present invention;

[0057] Figure 5 It is a block diagram of a communication and perception integrated system for cooperation between a base station and a user provided by an embodiment of the present invention;

[0058] Figure 6 It is a structural diagram of a communication and perception integrated device for collaboration between a base station and a user provided by an embodiment of the present invention. DETAILED DESCRIPTION

[0059] The technical solution of the present invention is described below in conjunction with the accompanying drawings.

[0060] In the embodiments of the present invention, words such as "exemplarily" and "for example" are used to indicate examples, illustrations or explanations. Any embodiment or design described as "example" in the present invention should not be interpreted as being more preferred or more advantageous than other embodiments or designs. Specifically, the use of the word "example" is intended to present the concept in a specific way. In addition, in the embodiments of the present invention, the meaning expressed by "and / or" can be both, or it can be either of the two.

[0061] In the embodiments of the present invention, "image" and "picture" can sometimes be used interchangeably. It should be noted that when the difference between them is not emphasized, the meanings they intend to express are the same. "of", "corresponding, relevant" and "corresponding" can sometimes be used interchangeably. It should be noted that when the difference between them is not emphasized, the meanings they intend to express are the same.

[0062] In the embodiments of the present invention, sometimes the subscripts such as W 1 It may be written in non-subscript form such as W1. When the difference is not emphasized, the meaning is the same.

[0063] In order to make the technical problems, technical solutions and advantages to be solved by the present invention more clear, a detailed description will be given below with reference to the accompanying drawings and specific embodiments.

[0064] The embodiment of the present invention provides a method for integrating communication and perception between a base station and a user, which can be implemented by a device for integrating communication and perception between a base station and a user, and the device for integrating communication and perception between a base station and a user can be a terminal or a server. Figure 1 The flowchart of the communication and perception integration method for cooperation between the base station and the user is shown. The processing flow of the method may include the following steps:

[0065] S1. The strategy generation module of the base station selects a part of users from the user terminals served by the base station as perception anchor points, generates a perception reference signal time-frequency resource scheduling strategy for each user terminal serving as a perception anchor point, and transmits the time-frequency resource scheduling strategy to the scheduling module of the base station.

[0066] Among them, part of the time-frequency resources of the user terminal serving as the perception anchor point is scheduled to the perception reference signal, which not only avoids mutual interference between the perception signals of each user, but also enables the user terminal serving as the perception anchor point to realize communication and perception functions in the same BWP.

[0067] Among them, Figure 2The figure shows a schematic diagram of the structure of a communication and perception integration system for cooperation between a base station and a user provided by an embodiment of the present invention; wherein the communication and perception integration system for cooperation between a base station and a user includes a policy generation module of a base station, a scheduling module of a base station, a policy execution module of a base station, a data processing module of a base station, a scheduling module of a user terminal, a policy execution module of a user terminal and a data processing module of a user terminal. Among them, the policy generation module of the base station is used to generate a perception anchor point selection and time-frequency resource scheduling strategy; the scheduling module of the base station is used to generate scheduling information and signaling; the policy execution module of the base station generates a communication and perception integration signal according to the generated perception reference signal time-frequency resource scheduling strategy; the data processing module of the base station is used for perception data aggregation and target parameter estimation; the scheduling module of the user terminal is used to receive scheduling information and signaling; the policy execution module of the user terminal is used to receive a communication and perception integration signal, and extract a communication signal and a perception reference signal; the data processing module of the user terminal is used for perception parameter measurement and communication signal demodulation.

[0068] Among them, the strategy generation module of the base station is used to optimize the perception anchor point selection and the comb spectrum parameters of the perception reference signal time-frequency resources according to the proposed multi-objective planning framework for joint optimization of the perception anchor point selection and the perception reference signal time-frequency resources.

[0069] Among them, the scheduling information and signaling include the selection of the perception anchor point, the transmission time and frequency resource allocation of the perception reference signal, and the scheduling information of the communication signal.

[0070] Among them, the policy execution module of the base station is used to map the communication signal and the perception signal to the time-frequency domain resource block according to the time-frequency resource strategy output by the policy generation module of the base station, and realize the signal generation of communication and perception functions on the same activated BWP.

[0071] Among them, the base station not only provides communication services for multiple users, but also uses the perception reference signal for target perception; in each scheduling period, the base station can select a group of users as perception anchor points, use the dual-station radar mode to cooperate with users for target perception, and share perception information; when a user is selected as a perception anchor point, the base station will schedule part of the user's time-frequency resources for the transmission of the perception reference signal. The above mechanism enables the user terminal as a perception anchor point to realize communication and perception functions on the same activated BWP at the same time, thereby reducing hardware complexity and effectively avoiding the interference of the perception reference signal to other users.

[0072] The perception reference signal refers to a reference signal used for perception, rather than a specific reference signal.

[0073] The scheduling period refers to the time interval between two executions of the algorithm. It can be a fixed time length preset by the system, such as a time slot, subframe or frame, or a dynamic time length triggered by specific conditions.

[0074] Optionally, a strategy generation module of the base station is used to construct a multi-objective planning framework for joint optimization of perception anchor point selection and perception reference signal time-frequency resources;

[0075] Among them, the multi-objective planning framework is used to optimize the selection of perception anchor points and the comb spectrum parameters of the perception reference signal time-frequency resources.

[0076] Optionally, the optimization objectives of the multi-objective planning framework include constraints including maximizing system radar perception mutual information, maximizing system user maximum perception interval, and user communication utility.

[0077] Among them, radar perception mutual information is an important indicator for evaluating the system's target detection and environmental perception performance. The larger the radar perception mutual information, the stronger the system's target recognition and perception capabilities.

[0078] Among them, the sensing interval is the time interval from the last time a user was selected as a sensing anchor point. If a user is selected as a sensing anchor point in the current scheduling period, its sensing period will be reset to zero. Therefore, by minimizing the maximum sensing interval of the system, user terminals that have not been sensing anchor points for a long time can be selected as much as possible, which can ensure that the selection of sensing anchors is more fair, avoid excessive occupation of wireless resources of some users, and ensure that all users obtain relatively fair communication service quality assurance.

[0079] Among them, the multi-objective planning framework for joint optimization of perception anchor point selection and perception reference signal time-frequency resources can achieve a trade-off between system perception performance and user communication utility, and ensure fairness among the communication utilities of each user by maximizing the maximum perception interval of system users.

[0080] Optionally, the objective function of maximizing the system radar perception mutual information is expressed by the following formula (1):

[0081] (1)

[0082] in, Select indicator variables for perceptual anchors; Indicates the number of user terminals; Indicates that the i-th user terminal is selected as the sensing anchor point in the t-th scheduling period; Indicates that it is not selected as a perception anchor; It represents the comb spectrum parameter of the reference signal time-frequency resource perceived by the i-th user terminal in the t-th scheduling period, and its value range is Depends on system configuration; Indicates the subcarrier spacing of the sensing reference signal on one physical resource block; It indicates the number of symbols occupied on one physical resource block; represents the received signal to interference and noise ratio of the reference signal perceived by the i-th user terminal in the t-th scheduling period; represents the total number of subcarrier waves allocated to the i-th user terminal; It represents the total number of symbols allocated to the i-th user terminal in the t-th scheduling period.

[0083] Among them, when When Figure 3 The figure shows a schematic diagram of a first example of comb spectrum configuration of a perception reference signal time-frequency resource.

[0084] Among them, when When Figure 4 Shown is a schematic diagram of case 2 of comb spectrum configuration of perception reference signal time-frequency resources.

[0085] Optionally, the objective function of maximizing the maximum perception interval of the system user is expressed by the following formula (2):

[0086] (2)

[0087] in, represents the time when the i-th user terminal was last selected as the perception anchor point; Indicates the count of the current scheduling period; It represents the time interval from the last time that user terminal i was selected as the sensing anchor point; if user terminal i is selected as the sensing anchor point in the current scheduling period t, then ,Right now .

[0088] Optionally, the constraints including the user communication utility are expressed by the following formula (3):

[0089] (3)

[0090] The communication rate reduction ratio of user terminal i due to the perception of reference signal occupying its time-frequency resources does not exceed , ; The threshold value indicating the ratio of signal rate reduction; Indicates that the i-th user terminal is in The total number of symbols allocated in a scheduling period.

[0091] Among them, after the user is selected as the perception anchor point, the system will requisition part of the user's wireless resources to transmit the perception reference signal, thereby reducing the user's communication utility. Therefore, in order to avoid excessive loss of user communication utility, the multi-objective planning framework for joint optimization of perception anchor point selection and perception reference signal time-frequency resources needs to introduce user communication utility constraints and limit the number of user terminals selected as perception anchor points to .

[0092] In a feasible implementation, the multi-objective planning framework for joint optimization of sensing anchor point selection and sensing reference signal time-frequency resources is expressed by the following formula:

[0093]

[0094] in, Indicates that at most R user terminals are selected as sensing anchor points at the same time; represents the perceptual anchor point selection indicator variable, Can only take 0 or 1; It represents the comb spectrum parameter of the reference signal time-frequency resource perceived by the i-th user terminal in the t-th scheduling period, and its value range is Depends on system configuration.

[0095] Optionally, the process of solving the optimization problem in the multi-objective programming framework includes:

[0096] Traverse and search for Pareto front solutions; if the Pareto front exists, select any Pareto front solution as the solution to the optimization problem of the multi-objective programming framework; if the Pareto front does not exist, construct a weighted objective function by maximizing the system radar perception mutual information and maximizing the system user maximum perception interval, and obtain the solution to the optimization problem of the multi-objective programming framework by solving the weighted objective function; wherein, the process of constructing a weighted objective function by maximizing the system radar perception mutual information and maximizing the system user maximum perception interval is expressed by the following formula:

[0097]

[0098] in, represents the normalization coefficient that maximizes the system radar perception mutual information; Represents the normalized coefficient that maximizes the maximum perceptual interval of the system user.

[0099] S2. The scheduling module of the base station generates scheduling information and signaling of the time-frequency resource scheduling strategy; transmits the scheduling information and signaling to the scheduling module of the user terminal to realize information interaction between the base station and the user.

[0100] Among them, the scheduling module of the user terminal is used to receive scheduling information and signaling from the base station, including the transmission time and frequency resource allocation of the perception reference signal and the scheduling information of the communication signal.

[0101] Among them, the policy execution module of the user terminal is used to receive the communication signal and the perception reference signal sent by the base station, and extract the communication signal and the perception reference signal respectively.

[0102] S3. The policy execution module of the base station generates a communication and perception integrated signal by multiplexing the time-frequency resources of the communication signal and the perception reference signal according to the time-frequency resource scheduling strategy; and transmits the communication and perception integrated signal to the policy execution module of the user terminal.

[0103] S4. The policy execution module of the user terminal separates the communication signal and the perception reference signal from the communication and perception integrated signal according to the received scheduling information and signaling, and transmits the separated communication signal and the perception reference signal to the data processing module of the user terminal.

[0104] S5. The data processing module of the user terminal measures the delay, Doppler frequency shift and phase characteristic parameters of the received perception reference signal, and demodulates the received communication signal; transmits the characteristic parameters of the perception reference signal to the data processing module of the base station, and obtains the convergence result by performing perception data convergence on the characteristic parameters of the perception reference signal; and estimates the position and velocity parameters of the target based on the convergence result.

[0105] The policy generation module of the base station in the embodiment of the present invention selects a part of users from the user terminals served by the base station as perception anchor points, generates a perception reference signal time-frequency resource scheduling strategy for each user terminal serving as a perception anchor point, and transmits the time-frequency resource scheduling strategy to the scheduling module of the base station; the scheduling module of the base station generates scheduling information and signaling of the time-frequency resource scheduling strategy; transmits the scheduling information and signaling to the scheduling module of the user terminal to realize information interaction between the base station and the user; the policy execution module of the base station generates a communication and perception integrated signal by multiplexing the time-frequency resources of the communication signal and the perception reference signal according to the time-frequency resource scheduling strategy; and transmits the communication and perception integrated signal to the user terminal. The terminal's policy execution module; the user terminal's policy execution module separates the communication signal and the perception reference signal from the communication and perception integrated signal according to the received scheduling information and signaling, and transmits the separated communication signal and the perception reference signal to the user terminal's data processing module; the user terminal's data processing module measures the received perception reference signal's delay, Doppler frequency shift and phase characteristic parameters, and demodulates the received communication signal; transmits the characteristic parameters of the perception reference signal to the data processing module of the base station, and obtains the convergence result by performing perception data convergence on the characteristic parameters of the perception reference signal; and estimates the position and velocity parameters of the target according to the convergence result.

[0106] The strategy generation module of the base station of the present invention jointly optimizes the perception anchor point selection and the perception reference signal time-frequency resource scheduling strategy according to a multi-objective planning framework including maximizing the system radar perception mutual information and maximizing the system user maximum perception interval. By scheduling part of the time-frequency resources from the time-frequency resources of the user terminal serving as the perception anchor point to the perception reference signal, it can avoid mutual interference of perception signals between users and enable the user terminal serving as the perception anchor point to realize communication and perception functions in the same BWP, thereby effectively improving the efficiency of communication and perception integration in the B5G / 6G network.

[0107] The embodiments of the present invention can effectively realize the coordinated communication and perception between the base station and the user terminal; by giving full play to the wireless resource advantages, multi-dimensional perception advantages and collaboration advantages of massive user terminals, it provides strong technical support for application scenarios such as smart vehicle networking and low-altitude economy, and has broad application prospects and market potential.

[0108] Figure 5 The block diagram of a communication and perception integration system for cooperation between a base station and a user according to an exemplary embodiment is shown. The system is used for a communication and perception integration method for cooperation between a base station and a user. Figure 5 The system includes a base station 510 and a user terminal 520. Wherein:

[0109] The base station 510, a policy generation module for the base station selects a part of users from the user terminals served by the base station as perception anchor points, generates a perception reference signal time-frequency resource scheduling strategy for each user terminal serving as a perception anchor point, and transmits the time-frequency resource scheduling strategy to the scheduling module of the base station; the scheduling module of the base station generates scheduling information and signaling of the time-frequency resource scheduling strategy; transmits the scheduling information and signaling to the scheduling module of the user terminal to realize information interaction between the base station and the user; the policy execution module of the base station generates a communication and perception integrated signal by multiplexing the time-frequency resources of the communication signal and the perception reference signal according to the time-frequency resource scheduling strategy; and transmits the communication and perception integrated signal to the policy execution module of the user terminal;

[0110] The user terminal 520, a policy execution module for the user terminal, separates the communication signal and the perception reference signal from the communication and perception integrated signal according to the received scheduling information and signaling, and transmits the separated communication signal and the perception reference signal to the data processing module of the user terminal; the data processing module of the user terminal measures the delay, Doppler frequency shift and phase characteristic parameters of the received perception reference signal, and demodulates the received communication signal; transmits the characteristic parameters of the perception reference signal to the data processing module of the base station, and obtains the convergence result by performing perception data convergence on the characteristic parameters of the perception reference signal; and estimates the position and velocity parameters of the target according to the convergence result.

[0111] Optionally, the strategy generation module of the base station is used to construct a multi-objective planning framework for joint optimization of perception anchor point selection and perception reference signal time-frequency resources;

[0112] The multi-objective planning framework is used to optimize the selection of perception anchor points and the parameters of the comb spectrum of the time-frequency resources of the perception reference signal.

[0113] Optionally, the optimization objectives of the multi-objective planning framework include constraints including maximizing system radar perception mutual information, maximizing system user maximum perception interval, and user communication utility.

[0114] Optionally, the objective function of maximizing the system radar perception mutual information is expressed by the following formula (1):

[0115] (1)

[0116] in, Select indicator variables for perceptual anchors, Indicates the number of user terminals; Indicates that the i-th user terminal is selected as the sensing anchor point in the t-th scheduling period; Indicates that it is not selected as a perception anchor; It represents the comb spectrum parameter of the reference signal time-frequency resource perceived by the i-th user terminal in the t-th scheduling period, and its value range is Depends on system configuration; Indicates the subcarrier spacing of the sensing reference signal on one physical resource block; It indicates the number of symbols occupied on one physical resource block; represents the received signal to interference and noise ratio of the reference signal perceived by the i-th user terminal in the t-th scheduling period; represents the total number of subcarrier waves allocated to the i-th user terminal, It represents the total number of symbols allocated to the i-th user terminal in the t-th scheduling period.

[0117] Optionally, the objective function of maximizing the maximum perception interval of the system user is expressed by the following formula (2):

[0118] (2)

[0119] in, represents the time when the i-th user terminal was last selected as the perception anchor point; Indicates the count of the current scheduling period; It represents the time interval from the last time that user terminal i was selected as the sensing anchor point; if user terminal i is selected as the sensing anchor point in the current scheduling period t, then ,Right now .

[0120] Optionally, the constraint condition including the user communication utility is expressed by the following formula (3):

[0121] (3)

[0122] The communication rate reduction ratio of user terminal i due to the perception of reference signal occupying its time-frequency resources does not exceed , ; The threshold value indicating the ratio of signal rate reduction; Indicates that the i-th user terminal is in The total number of symbols allocated in a scheduling period.

[0123] Optionally, the process of solving the optimization problem of the multi-objective programming framework includes:

[0124] Traverse and search for Pareto front solutions; if the Pareto front exists, select any Pareto front solution as the solution to the optimization problem of the multi-objective programming framework; if the Pareto front does not exist, construct a weighted objective function by maximizing the system radar perception mutual information and maximizing the system user maximum perception interval, and obtain the solution to the optimization problem of the multi-objective programming framework by solving the weighted objective function; wherein, the process of constructing a weighted objective function by maximizing the system radar perception mutual information and maximizing the system user maximum perception interval is expressed by the following formula:

[0125] in, represents the normalization coefficient that maximizes the system radar perception mutual information; Represents the normalized coefficient that maximizes the maximum perceptual interval of the system user.

[0126] The policy generation module of the base station in the embodiment of the present invention selects a part of users from the user terminals served by the base station as perception anchor points, generates a perception reference signal time-frequency resource scheduling strategy for each user terminal serving as a perception anchor point, and transmits the time-frequency resource scheduling strategy to the scheduling module of the base station; the scheduling module of the base station generates scheduling information and signaling of the time-frequency resource scheduling strategy; transmits the scheduling information and signaling to the scheduling module of the user terminal to realize information interaction between the base station and the user; the policy execution module of the base station generates a communication and perception integrated signal by multiplexing the time-frequency resources of the communication signal and the perception reference signal according to the time-frequency resource scheduling strategy; and transmits the communication and perception integrated signal to the user terminal. The terminal's policy execution module; the user terminal's policy execution module separates the communication signal and the perception reference signal from the communication and perception integrated signal according to the received scheduling information and signaling, and transmits the separated communication signal and the perception reference signal to the user terminal's data processing module; the user terminal's data processing module measures the received perception reference signal's delay, Doppler frequency shift and phase characteristic parameters, and demodulates the received communication signal; transmits the characteristic parameters of the perception reference signal to the data processing module of the base station, and obtains the convergence result by performing perception data convergence on the characteristic parameters of the perception reference signal; and estimates the position and velocity parameters of the target according to the convergence result.

[0127] The strategy generation module of the base station of the present invention jointly optimizes the perception anchor point selection and the perception reference signal time-frequency resource scheduling strategy according to a multi-objective planning framework including maximizing the system radar perception mutual information and maximizing the system user maximum perception interval. By scheduling part of the time-frequency resources from the time-frequency resources of the user terminal serving as the perception anchor point to the perception reference signal, it can avoid mutual interference of perception signals between users and enable the user terminal serving as the perception anchor point to realize communication and perception functions in the same BWP, thereby effectively improving the efficiency of communication and perception integration in the B5G / 6G network.

[0128] The embodiments of the present invention can effectively realize the coordinated communication and perception between the base station and the user terminal; by giving full play to the wireless resource advantages, multi-dimensional perception advantages and collaboration advantages of massive user terminals, it provides strong technical support for application scenarios such as smart vehicle networking and low-altitude economy, and has broad application prospects and market potential.

[0129] Figure 6 is a schematic diagram of a structure of a communication and perception integrated device for cooperation between a base station and a user provided by an embodiment of the present invention, such as Figure 6 As shown, the communication and perception integrated device for cooperation between the base station and the user may include the above Figure 5 The communication and perception integrated system for cooperation between a base station and a user is shown. Optionally, the communication and perception integrated device 610 for cooperation between a base station and a user may include a first processor 2001 .

[0130] Optionally, the communication and perception integrated device 610 for collaboration between the base station and the user may also include a memory 2002 and a transceiver 2003 .

[0131] The first processor 2001, the memory 2002 and the transceiver 2003 may be connected via a communication bus.

[0132] Combine the following Figure 6 The components of the communication and perception integrated device 610 for cooperation between the base station and the user are specifically introduced:

[0133] The first processor 2001 is the control center of the communication and perception integrated device 610 for cooperation between the base station and the user, and can be a processor or a general term for multiple processing elements. For example, the first processor 2001 is one or more central processing units (CPUs), or an application specific integrated circuit (ASIC), or one or more integrated circuits configured to implement the embodiments of the present invention, such as one or more microprocessors (digital signal processors, DSPs), or one or more field programmable gate arrays (field programmable gate arrays, FPGAs).

[0134] Optionally, the first processor 2001 can perform various functions of the communication and perception integrated device 610 for collaboration between the base station and the user by running or executing a software program stored in the memory 2002 and calling data stored in the memory 2002.

[0135] In a specific implementation, as an embodiment, the first processor 2001 may include one or more CPUs, such as Figure 6 CPU0 and CPU1 are shown in FIG.

[0136] In a specific implementation, as an embodiment, the communication and perception integrated device 610 for cooperation between the base station and the user may also include multiple processors, for example Figure 6 The first processor 2001 and the second processor 2004 are shown in FIG. Each of these processors may be a single-core processor (single-CPU) or a multi-core processor (multi-CPU). The processor here may refer to one or more devices, circuits, and / or processing cores for processing data (e.g., computer program instructions).

[0137] The memory 2002 is used to store the software program for executing the solution of the present invention, and is controlled to be executed by the first processor 2001. The specific implementation method can refer to the above method embodiment, which will not be repeated here.

[0138] Optionally, the memory 2002 may be a read-only memory (ROM) or other types of static storage devices that can store static information and instructions, a random access memory (RAM) or other types of dynamic storage devices that can store information and instructions, or an electrically erasable programmable read-only memory (EEPROM), a compact disc read-only memory (CD-ROM) or other optical disc storage, optical disc storage (including compressed optical disc, laser disc, optical disc, digital versatile disc, Blu-ray disc, etc.), a magnetic disk storage medium or other magnetic storage device, or any other medium that can be used to carry or store the desired program code in the form of instructions or data structures and can be accessed by a computer, but is not limited thereto. The memory 2002 may be integrated with the first processor 2001, or may exist independently, and access the first processor 2001 through the interface circuit ( Figure 6 (not shown) is coupled to the first processor 2001, which is not specifically limited in this embodiment of the present invention.

[0139] The transceiver 2003 is used to communicate with a network device or a terminal device.

[0140] Optionally, the transceiver 2003 may include a receiver and a transmitter ( Figure 6 The receiver is used to implement a receiving function, and the transmitter is used to implement a sending function.

[0141] Optionally, the transceiver 2003 may be integrated with the first processor 2001, or may exist independently, and communicate with the user through the interface circuit ( Figure 6 (not shown) is coupled to the first processor 2001, which is not specifically limited in this embodiment of the present invention.

[0142] It should be noted that Figure 6 The structure of the communication and perception integrated device 610 for cooperation between the base station and the user shown in the figure does not constitute a limitation on the router. The actual knowledge structure recognition device may include more or fewer components than shown in the figure, or combine certain components, or arrange the components differently.

[0143] In addition, the technical effects of the communication and perception integration device 610 for collaboration between the base station and the user can refer to the technical effects of the communication and perception integration method for collaboration between the base station and the user described in the above method embodiment, and will not be repeated here.

[0144] It should be understood that the first processor 2001 in the embodiment of the present invention may be a central processing unit (CPU), and the processor may also be other general-purpose processors, digital signal processors (DSP), application specific integrated circuits (ASIC), field programmable gate arrays (FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. A general-purpose processor may be a microprocessor or the processor may also be any conventional processor, etc.

[0145] It should also be understood that the memory in the embodiments of the present invention may be a volatile memory or a non-volatile memory, or 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 (RAM), which is used as an external cache. By way of example and not limitation, many forms of random access memory (RAM) are available, such as static RAM (SRAM), dynamic random access memory (DRAM), synchronous DRAM (SDRAM), double data rate synchronous dynamic random access memory (DDR SDRAM), enhanced synchronous dynamic random access memory (ESDRAM), synchronous link DRAM (SLDRAM), and direct rambus RAM (DR RAM).

[0146] The above embodiments can be implemented in whole or in part by software, hardware (such as circuits), firmware or any other combination. When implemented by software, the above embodiments can be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions or computer programs. When the computer instructions or computer programs are loaded or executed on a computer, the process or function described in the embodiment of the present invention is generated in whole or in part. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable system. The computer instructions can be stored in a computer-readable storage medium, or transmitted from one computer-readable storage medium to another computer-readable storage medium. For example, the computer instructions can be transmitted from one website, computer, server or data center to another website, computer, server or data center by wired (such as infrared, wireless, microwave, etc.). The computer-readable storage medium can be any available medium that can be accessed by a computer or a data storage device such as a server or data center that contains one or more available media sets. The available medium can be a magnetic medium (for example, a floppy disk, a hard disk, a tape), an optical medium (for example, a DVD), or a semiconductor medium. The semiconductor medium can be a solid-state hard disk.

[0147] It should be understood that the term "and / or" in this article is only a description of the association relationship of associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. A and B can be singular or plural. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship, but it may also indicate an "and / or" relationship. Please refer to the context for specific understanding.

[0148] In the present invention, "at least one" means one or more, and "plurality" means two or more. "At least one of the following" or similar expressions refers to any combination of these items, including any combination of single items or plural items. For example, at least one of a, b, or c can mean: a, b, c, ab, ac, bc, or abc, where a, b, and c can be single or multiple.

[0149] It should be understood that in various embodiments of the present invention, the size of the serial numbers of the above-mentioned processes does not mean the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present invention.

[0150] Those skilled in the art will appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of the present invention.

[0151] Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working processes of the above-described devices, systems and units can refer to the corresponding processes in the aforementioned method embodiments and will not be repeated here.

[0152] In the several embodiments provided by the present invention, it should be understood that the disclosed devices, systems and methods can be implemented in other ways. For example, the system embodiments described above are only schematic. For example, the division of the units is only a logical function division. There may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another device, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of the system or unit, which can be electrical, mechanical or other forms.

[0153] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0154] In addition, each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.

[0155] If the functions are implemented in the form of software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present invention, or the part that contributes to the prior art, or the part of the technical solution, can be embodied in the form of a software product. The computer software product is stored in a storage medium, including several instructions for enabling a computer device (which can be a personal computer, server, or network device, etc.) to perform all or part of the steps of the methods described in various embodiments of the present invention. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (ROM), random access memory (RAM), disk or optical disk, and other media that can store program codes.

[0156] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A communication and perception integration method for cooperation between a base station and a user, characterized in that: The base station and user collaborative communication and perception integration method is implemented by a base station and user collaborative communication and perception integration system; The system comprises: a base station and a user terminal; the method comprises: S1. The strategy generation module of the base station selects a part of users from the user terminals served by the base station as sensing anchor points, generates a sensing reference signal time-frequency resource scheduling strategy for each user terminal serving as a sensing anchor point, and transmits the time-frequency resource scheduling strategy to the scheduling module of the base station; S2. The scheduling module of the base station generates scheduling information and signaling of the time-frequency resource scheduling strategy; transmits the scheduling information and signaling to the scheduling module of the user terminal to realize information interaction between the base station and the user; S3, the policy execution module of the base station generates a communication and perception integrated signal by multiplexing the time-frequency resources of the communication signal and the perception reference signal according to the time-frequency resource scheduling strategy; and transmits the communication and perception integrated signal to the policy execution module of the user terminal; S4. The policy execution module of the user terminal separates the communication signal and the perception reference signal from the received communication and perception integrated signal according to the received scheduling information and signaling, and transmits the separated communication signal and the perception reference signal to the data processing module of the user terminal; S5. The data processing module of the user terminal measures the delay, Doppler frequency shift and phase characteristic parameters of the received perception reference signal, and demodulates the received communication signal; transmits the characteristic parameters of the perception reference signal to the data processing module of the base station, and obtains the convergence result by performing perception data convergence on the characteristic parameters of the perception reference signal; and estimates the position and velocity parameters of the target based on the convergence result.

2. The method for integrating communication and perception between a base station and a user according to claim 1, characterized in that: The strategy generation module of the base station is used to construct a multi-objective planning framework for joint optimization of perception anchor point selection and perception reference signal time-frequency resources; The multi-objective planning framework is used to optimize the selection of perception anchor points and the parameters of the comb spectrum of the time-frequency resources of the perception reference signal.

3. The method for integrating communication and perception between a base station and a user according to claim 2, characterized in that: The optimization objectives of the multi-objective planning framework include constraints including maximizing the system radar perception mutual information, maximizing the system user maximum perception interval and user communication utility.

4. The method for integrating communication and perception between a base station and a user according to claim 3, characterized in that: The objective function of maximizing the system radar perception mutual information is expressed by the following formula (1): （1） in, Select indicator variables for perceptual anchors, Indicates the number of user terminals; Indicates that the i-th user terminal is selected as the sensing anchor point in the t-th scheduling period; Indicates that it is not selected as a perception anchor; It represents the comb spectrum parameter of the reference signal time-frequency resource perceived by the i-th user terminal in the t-th scheduling period, and its value range is Depends on system configuration; Indicates the subcarrier spacing of the sensing reference signal on one physical resource block; It indicates the number of symbols occupied on one physical resource block; represents the received signal to interference and noise ratio of the reference signal perceived by the i-th user terminal in the t-th scheduling period; represents the total number of subcarrier waves allocated to the i-th user terminal, It represents the total number of symbols allocated to the i-th user terminal in the t-th scheduling period.

5. The method for integrating communication and perception between a base station and a user according to claim 3, characterized in that: The objective function of maximizing the maximum perception interval of the system user is expressed by the following formula (2): （2） in, represents the time when the i-th user terminal was last selected as the perception anchor point; Indicates the count of the current scheduling period; It represents the time interval from the last time that user terminal i was selected as the sensing anchor point; if user terminal i is selected as the sensing anchor point in the current scheduling period t, then ,Right now .

6. The communication and perception integration method for cooperation between a base station and a user according to claim 3, characterized in that: The constraints including the user communication utility are expressed by the following formula (3): （3） The communication rate reduction ratio of user terminal i due to the perception of reference signal occupying its time-frequency resources does not exceed , ; The threshold value indicating the ratio of signal rate reduction; Indicates that the i-th user terminal is in The total number of symbols allocated in a scheduling period.

7. The method for integrating communication and perception between a base station and a user according to claim 2, characterized in that: The process of solving the optimization problem of the multi-objective programming framework includes: Traverse and search for Pareto front solutions; if the Pareto front exists, select any Pareto front solution as the solution to the optimization problem of the multi-objective programming framework; if the Pareto front does not exist, construct a weighted objective function by maximizing the system radar perception mutual information and maximizing the system user maximum perception interval, and obtain the solution to the optimization problem of the multi-objective programming framework by solving the weighted objective function; wherein, the process of constructing a weighted objective function by maximizing the system radar perception mutual information and maximizing the system user maximum perception interval is expressed by the following formula: ； in, represents the normalization coefficient that maximizes the system radar perception mutual information; Represents the normalized coefficient that maximizes the maximum perceptual interval of the system user.

8. A base station and user collaborative communication and perception integrated system, the base station and user collaborative communication and perception integrated system is used to implement the base station and user collaborative communication and perception integrated method as claimed in any one of claims 1 to 7, characterized in that: The system comprises: The base station, the policy generation module for the base station selects a part of users from the user terminals served by the base station as perception anchor points, generates a perception reference signal time-frequency resource scheduling strategy for each user terminal serving as a perception anchor point, and transmits the time-frequency resource scheduling strategy to the scheduling module of the base station; the scheduling module of the base station generates scheduling information and signaling of the time-frequency resource scheduling strategy; transmits the scheduling information and signaling to the scheduling module of the user terminal to realize information interaction between the base station and the user; the policy execution module of the base station generates a communication and perception integrated signal by multiplexing the time-frequency resources of the communication signal and the perception reference signal according to the time-frequency resource scheduling strategy; and transmits the communication and perception integrated signal to the policy execution module of the user terminal; The user terminal, a policy execution module for the user terminal, separates the communication signal and the perception reference signal from the communication and perception integrated signal according to the received scheduling information and signaling, and transmits the separated communication signal and the perception reference signal to the data processing module of the user terminal; the data processing module of the user terminal measures the delay, Doppler frequency shift and phase characteristic parameters of the received perception reference signal, and demodulates the received communication signal; transmits the characteristic parameters of the perception reference signal to the data processing module of the base station, and obtains the convergence result by performing perception data convergence on the characteristic parameters of the perception reference signal; and estimates the position and velocity parameters of the target according to the convergence result.

9. A communication and perception integrated device for cooperation between a base station and a user, characterized in that: The communication and perception integrated equipment for cooperation between the base station and the user includes: processor; A memory having computer-readable instructions stored thereon, wherein when the computer-readable instructions are executed by the processor, the method according to any one of claims 1 to 7 is implemented.

10. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores program codes, which can be called by a processor to execute the method according to any one of claims 1 to 7.

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