Communication method and apparatus based on inter-sense integration, terminal and network-side device

Abstract

The application provides a communication method and device based on integrated sensing, a terminal and a network side device. The method comprises: in the case that a network side device supports a first function and the channel quality at a first time is less than a first threshold, sending a sounding reference signal (SRS) and a first response message to the network side device; wherein the first function comprises a function of using sensing information to assist communication; the channel quality at the first time is the channel quality at a time before the time when the terminal determines that the network side device supports the first function; and the first response message is used to indicate that the first function is applied. In the application, the terminal decides whether to enable the first function according to whether the network side device supports the first function and the channel quality at the first time, which can effectively improve the flexibility of the terminal decision, use sensing information to assist communication, and improve the performance of integrated sensing communication and the accuracy of communication beamforming.

Description

Technical Field

[0001] This application relates to the field of communication technology, and in particular to a communication method, device, terminal and network-side equipment based on integrated sensing. Background Technology

[0002] After the integration of sensing and communication, they compete for time and frequency resources, resulting in some loss of functionality in both and ultimately a decrease in system resource utilization. In fact, although the information in sensing and communication channels differs, they also share some common factors, so using sensing to assist communication is theoretically feasible.

[0003] Existing sensing-assisted communication channel estimation schemes, such as sensing-assisted Kalman filter channel estimation, have significantly reduced algorithm complexity, but can only achieve performance similar to traditional minimum mean square error (MMSE) based channel estimation. They do not directly improve channel estimation performance. In general, existing research on sensing-assisted communication channel estimation is still in its initial stage, lacking specific and feasible solutions, and it is difficult to improve the communication performance of integrated sensing systems. Summary of the Invention

[0004] The purpose of this application is to provide a communication method, device, terminal and network-side equipment based on sensor integration, which solves the problem that existing solutions are unable to improve the communication performance of sensor integration systems.

[0005] Embodiments of this application provide a communication method based on integrated sensing, executed by a terminal, including:

[0006] If the network-side device supports the first function and the channel quality at the first moment is less than the first threshold, a sounding reference signal (SRS) and a first response message are sent to the network-side device.

[0007] The first function includes: the function of using sensing information to assist in communication;

[0008] The channel quality at the first moment is the channel quality at the moment before the terminal determines that the network-side device supports the first function; the first response message is used to indicate the application of the first function.

[0009] Optionally, the use of sensing information to assist communication includes:

[0010] The scatterer angle spectrum between the network-side device and the scatterer is used to assist in the estimation of the communication channel. The scatterer angle spectrum is information obtained by the network-side device through sensing scanning.

[0011] Optionally, the method further includes:

[0012] The network-side device receives a Probe Reference Signal (SRS) request message, the SRS request message including first indication information, the first indication information being used to indicate whether the network-side device supports or does not support the first function.

[0013] Optionally, the method further includes:

[0014] Read the channel quality at the first moment from the stored information;

[0015] or,

[0016] In the absence of storing the channel quality at the first moment, the highest received channel quality for receiving broadcast signals is determined to be the channel quality at the first moment.

[0017] Optionally, the method further includes:

[0018] Receive scheduling information sent by the network-side device;

[0019] Configure time-domain and / or frequency-domain resources for receiving downlink data according to the scheduling information;

[0020] The downlink data sent by the network-side device is received using the time-domain resources and / or frequency-domain resources.

[0021] Optionally, the method further includes:

[0022] When receiving downlink data sent by the network-side device, store the channel quality at the current moment.

[0023] Embodiments of this application provide a communication method based on integrated sensing, executed by a network-side device, including:

[0024] The receiving terminal sends an SRS and a first response message, the first response message being used to indicate the application of a first function; the first function includes: a function of using sensing information to assist in communication;

[0025] Based on the first response message and the first beam direction of the received SRS, determine the sensing information corresponding to the first beam direction;

[0026] Communication is performed based on the perceived information and the SRS.

[0027] Optionally, based on the first response message and the first beam direction of the received SRS, the sensing information corresponding to the first beam direction is determined, including:

[0028] The first function is applied based on the first response message;

[0029] The first scatterer angle spectrum corresponding to the direction of the first beam is selected from the scatterer angle spectrum information set; the scatterer angle spectrum information set is information obtained by the network-side device through sensing and scanning.

[0030] The communication based on the sensed information and the SRS includes:

[0031] Communication channel estimation is performed based on the first scatterer angular spectrum and the SRS.

[0032] Optionally, the step of estimating the communication channel based on the first scatterer angular spectrum and the SRS includes:

[0033] A channel estimator is constructed based on the angular spectrum of the first scatterer;

[0034] Communication channel estimation is performed based on the SRS and using the channel estimator.

[0035] Optionally, before receiving the SRS and the first response message sent by the receiving terminal, the method further includes:

[0036] An SRS request message is sent to the terminal. The SRS request message includes first indication information, which is used to indicate whether the network-side device supports or does not support the first function.

[0037] Optionally, the method further includes:

[0038] Perform a sensing scan to obtain a set of scatterer angular spectrum information and / or a set of sensing target information;

[0039] The scatterer angle spectrum information set includes the scatterer angle spectrum corresponding to the global beam direction.

[0040] Optionally, the method further includes:

[0041] Based on business requirements and the set of sensing target information, increase the symbol spacing of the sensing resources in Orthogonal Frequency Division Multiplexing (OFDM).

[0042] Based on the OFDM symbol interval of the sensing resources, other resources outside the sensing resources are adjusted to communication resources.

[0043] Optionally, increasing the orthogonal frequency division multiplexing (OFDM) symbol spacing of sensing resources according to business requirements and the sensing target information set includes:

[0044] Upon receiving a target tracking service request, the maximum moving speed of the sensed target is determined based on the sensed target information set; the OFDM symbol interval of the sensed resources is adjusted based on the maximum moving speed.

[0045] or,

[0046] Upon receiving a precise sensing service request, the sensing duration is determined based on the ranging accuracy indicated by the precise sensing service request and the sensing target information set; the OFDM symbol interval of the sensing resources is adjusted based on the sensing duration.

[0047] Optionally, the method further includes:

[0048] Beamforming is performed based on the results of the communication channel estimation.

[0049] The terminal is sent scheduling information, which includes time-domain resources and / or frequency-domain resources for receiving downlink data.

[0050] Embodiments of this application provide a terminal, including: a memory, a transceiver, and a processor.

[0051] A memory for storing computer programs; a transceiver for receiving and sending data under the control of the processor; and a processor for reading the computer programs from the memory and performing the following operations:

[0052] If the network-side device supports the first function and the channel quality at the first moment is less than the first threshold, a probe reference signal (SRS) and a first response message are sent to the network-side device.

[0053] The first function includes: the function of using sensing information to assist in communication;

[0054] The channel quality at the first moment is the channel quality at the moment before the terminal determines that the network-side device supports the first function; the first response message is used to indicate the application of the first function.

[0055] Optionally, the use of sensing information to assist communication includes:

[0056] The scatterer angle spectrum between the network-side device and the scatterer is used to assist in the estimation of the communication channel. The scatterer angle spectrum is information obtained by the network-side device through sensing scanning.

[0057] Optionally, the processor is configured to read the computer program in the memory and perform the following operations:

[0058] The network-side device receives a Probe Reference Signal (SRS) request message, the SRS request message including first indication information, the first indication information being used to indicate whether the network-side device supports or does not support the first function.

[0059] Optionally, the processor is configured to read the computer program in the memory and perform the following operations:

[0060] Read the channel quality at the first moment from the stored information;

[0061] or,

[0062] In the absence of storing the channel quality at the first moment, the highest received channel quality for receiving broadcast signals is determined to be the channel quality at the first moment.

[0063] Optionally, the processor is configured to read the computer program in the memory and perform the following operations:

[0064] Receive scheduling information sent by the network-side device;

[0065] Configure time-domain and / or frequency-domain resources for receiving downlink data according to the scheduling information;

[0066] The downlink data sent by the network-side device is received using the time-domain resources and / or frequency-domain resources.

[0067] Optionally, the processor is configured to read the computer program in the memory and perform the following operations:

[0068] When receiving downlink data sent by the network-side device, store the channel quality at the current moment.

[0069] Embodiments of this application provide a network-side device, including: a memory, a transceiver, and a processor.

[0070] A memory for storing computer programs; a transceiver for receiving and sending data under the control of the processor; and a processor for reading the computer programs from the memory and performing the following operations:

[0071] The receiving terminal sends an SRS and a first response message, the first response message being used to indicate the application of a first function; the first function includes: a function of using sensing information to assist in communication;

[0072] Based on the first response message and the first beam direction of the received SRS, determine the sensing information corresponding to the first beam direction;

[0073] Communication is performed based on the perceived information and the SRS.

[0074] Optionally, the processor is configured to read the computer program in the memory and perform the following operations:

[0075] The first function is applied based on the first response message;

[0076] The first scatterer angle spectrum corresponding to the direction of the first beam is selected from the scatterer angle spectrum information set; the scatterer angle spectrum information set is information obtained by the network-side device through sensing and scanning.

[0077] The communication based on the sensed information and the SRS includes:

[0078] Communication channel estimation is performed based on the first scatterer angular spectrum and the SRS.

[0079] Optionally, the processor is configured to read the computer program in the memory and perform the following operations:

[0080] A channel estimator is constructed based on the angular spectrum of the first scatterer;

[0081] Communication channel estimation is performed based on the SRS and using the channel estimator.

[0082] Optionally, the processor is configured to read the computer program in the memory and perform the following operations:

[0083] An SRS request message is sent to the terminal. The SRS request message includes first indication information, which is used to indicate whether the network-side device supports or does not support the first function.

[0084] Optionally, the processor is configured to read the computer program in the memory and perform the following operations:

[0085] Perform a sensing scan to obtain a set of scatterer angular spectrum information and / or a set of sensing target information;

[0086] The scatterer angle spectrum information set includes the scatterer angle spectrum corresponding to the global beam direction.

[0087] Optionally, the processor is configured to read the computer program in the memory and perform the following operations:

[0088] Based on business requirements and the set of perceived target information, increase the symbol spacing of the orthogonal frequency division multiplexing (OFDM) of the sensing resources;

[0089] Based on the OFDM symbol interval of the sensing resources, other resources outside the sensing resources are adjusted to communication resources.

[0090] Optionally, the processor is configured to read the computer program in the memory and perform the following operations:

[0091] Upon receiving a target tracking service request, the maximum moving speed of the sensed target is determined based on the sensed target information set; the OFDM symbol interval of the sensed resources is adjusted based on the maximum moving speed.

[0092] or,

[0093] Upon receiving a precise sensing service request, the sensing duration is determined based on the ranging accuracy indicated by the precise sensing service request and the sensing target information set; the OFDM symbol interval of the sensing resources is adjusted based on the sensing duration.

[0094] Optionally, the processor is configured to read the computer program in the memory and perform the following operations:

[0095] Beamforming is performed based on the results of the communication channel estimation.

[0096] The terminal is sent scheduling information, which includes time-domain resources and / or frequency-domain resources for receiving downlink data.

[0097] Embodiments of this application provide a communication device based on integrated sensing, comprising:

[0098] The first transmitting unit is configured to transmit a probe reference signal (SRS) and a first response message to the network-side device when the network-side device supports the first function and the channel quality at the first moment is less than a first threshold.

[0099] The first function includes: the function of using sensing information to assist in communication;

[0100] The channel quality at the first moment is the channel quality at the moment before the terminal determines that the network-side device supports the first function; the first response message is used to indicate the application of the first function.

[0101] Embodiments of this application provide a communication device based on integrated sensing, comprising:

[0102] The first receiving unit is configured to receive SRS and a first response message sent by the terminal, wherein the first response message is used to indicate the application of a first function; the first function includes: a function of using sensing information to assist in communication;

[0103] The first determining unit is configured to determine sensing information corresponding to the first beam direction based on the first response message and the first beam direction of receiving the SRS.

[0104] A communication unit is used to communicate based on the sensed information and the SRS.

[0105] An embodiment of this application provides a processor-readable storage medium storing a program for causing the processor to execute the steps of the above-described communication method based on inductive integration.

[0106] The beneficial effects of the above-mentioned technical solution of this application are:

[0107] In embodiments of this application, when the network-side device supports the first function and the channel quality at a first moment is less than a first threshold, the terminal sends an SRS and a first response message to the network-side device to instruct the network-side device to enable the first function, i.e., to use sensing information to assist communication. The terminal's decision on whether to enable the first function based on whether the network-side device supports it and the channel quality at the first moment effectively improves the flexibility of terminal decision-making. Using sensing information to assist communication enhances the performance of integrated sensing communication and improves the accuracy of communication beamforming. Attached Figure Description

[0108] Figure 1 One of the flowcharts illustrating a communication method based on integrated sensing according to an embodiment of this application;

[0109] Figure 2 A second schematic flowchart illustrating a communication method based on integrated sensing according to an embodiment of this application;

[0110] Figure 3 This is a schematic diagram illustrating one of the methods for allocating sensing resources and communication resources according to an embodiment of this application;

[0111] Figure 4 This is a second schematic diagram illustrating the allocation method of sensing resources and communication resources according to an embodiment of this application.

[0112] Figure 5 The third flowchart illustrates the communication method based on integrated sensing in this application.

[0113] Figure 6 One of the schematic diagrams illustrating the structure of a communication device based on sensor integration according to an embodiment of this application;

[0114] Figure 7 A second schematic diagram illustrating the structure of a communication device based on sensor integration according to an embodiment of this application;

[0115] Figure 8 A schematic diagram illustrating the structure of the terminal according to an embodiment of this application;

[0116] Figure 9 This is a schematic diagram illustrating the structure of a network-side device according to an embodiment of this application. Detailed Implementation

[0117] To make the technical problems, technical solutions, and advantages of this application clearer, a detailed description will be provided below in conjunction with the accompanying drawings and specific embodiments. In the following description, specific details such as particular configurations and components are provided merely to aid in a comprehensive understanding of the embodiments of this application. Therefore, those skilled in the art should understand that various changes and modifications can be made to the embodiments described herein without departing from the scope and spirit of this application. Furthermore, for clarity and brevity, descriptions of known functions and structures have been omitted.

[0118] It should be understood that the phrase "one embodiment" or "an embodiment" throughout the specification means that a specific feature, structure, or characteristic related to the embodiment is included in at least one embodiment of this application. Therefore, "in one embodiment" or "in an embodiment" appearing throughout the specification does not necessarily refer to the same embodiment. Furthermore, these specific features, structures, or characteristics can be combined in any suitable manner in one or more embodiments.

[0119] In the various embodiments of this application, it should be understood that the sequence number of each process described below does not imply 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 this application.

[0120] In the embodiments of this application, the term "and / or" describes the relationship between associated objects, indicating that three relationships can exist. For example, A and / or B can represent three cases: A alone, A and B simultaneously, and B alone. The character " / " generally indicates that the preceding and following associated objects have an "or" relationship.

[0121] In the embodiments of this application, the term "multiple" refers to two or more, and other quantifiers are similar.

[0122] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0123] In describing the embodiments of this application, some concepts used in the following description will first be explained.

[0124] 1. Perception and communication.

[0125] The sensing channel and the communication channel exhibit a certain correlation. In scenarios where the base station simultaneously transmits and receives signals and communicates with the user equipment (UE), the sensing signal sequentially travels from the base station transmitter to the sensing target and then to the base station receiver, forming a round-trip channel. The uplink communication signal travels through the UE-base station line-of-sight (LOS) path and the UE-environmental scatterer-base station non-line-of-sight (NLOS) path. Since the sensing target and the environmental scatterer may be the same, the echo band channel of the sensing (sensing target-base station receiver) and the second segment of the NLOS channel of the communication (environmental scatterer-base station) may also be essentially the same, indicating a correlation between them. Some channel parameters constituting these channels, such as angle of arrival, range, and Doppler information, can be obtained through sensing, thus providing the possibility of acquiring prior information for communication channel estimation.

[0126] After the integration of sensing and communication, efficient resource allocation between sensing and communication is also an important aspect of further improving the performance of the integrated system. The sensing information obtained from the initial global scan can be used to assist in subsequent communication channel estimation, and the allocation of sensing time-frequency resources can be adjusted according to the subsequent sensing service requirements. For example, when performing short-range sensing, a sparser comb can be used to save more time-frequency resources for data transmission in communication, thereby improving the system's spectral efficiency.

[0127] The embodiments of this application provide a communication method, apparatus, terminal and network-side device based on sensor integration, which solves the problem that existing solutions are unable to improve the communication performance of sensor integration systems.

[0128] The method and apparatus are based on the same concept of the application. Since the methods and apparatus solve problems in similar ways, the implementation of the apparatus and methods can refer to each other, and the repeated parts will not be described again.

[0129] like Figure 1 As shown, an embodiment of this application provides a communication method based on integrated sensing, executed by a terminal, specifically including the following steps:

[0130] Step 101: If the network-side device supports the first function and the channel quality at the first moment is less than the first threshold, send a probe reference signal (SRS) and a first response message to the network-side device.

[0131] The first function includes: the function of using sensing information to assist in communication;

[0132] The channel quality at the first moment is the channel quality at the moment before the terminal determines that the network-side device supports the first function; the first response message is used to indicate the application of the first function.

[0133] In this embodiment, the terminal determines whether the network-side device supports the first function and whether the channel quality at the first moment is less than a first threshold. If the network-side device supports the first function and the channel quality at the first moment is less than the first threshold, the terminal sends an SRS and a first response message to the network-side device, instructing the network-side device to apply the first function.

[0134] The first function may be a function of sensing-assisted communication, such as one or more of the following: using sensing information to assist in communication channel estimation, using sensing information to assist in communication beam management, and using sensing information to assist in communication coverage enhancement.

[0135] The first moment refers to the moment before the current moment. The terminal reads the channel quality of the previous moment. If the channel quality of the previous moment is less than the first threshold, it can be considered that the channel quality has degraded, and the first function needs to be enabled.

[0136] Optionally, embodiments of this application do not limit the execution order of the terminal determining whether the network-side device supports the first function and determining whether the channel quality at the first moment is less than the first threshold.

[0137] For example, the terminal can first determine whether the network-side device supports the first function. If the network-side device supports the first function, it can decide whether to use the first function, that is, determine whether the channel quality at the first moment is less than the first threshold. If the channel quality at the first moment is less than the first threshold, it can decide to enable the first function. The terminal sends an SRS and a first response message to the network-side device to instruct the network-side device to enable the first function.

[0138] For example: The terminal first determines whether to use the first function, that is, it judges whether the channel quality at the first moment is less than the first threshold. If the channel quality at the first moment is less than the first threshold, it decides to enable the first function. The terminal judges whether the network-side device supports the first function. If the network-side device supports the first function, it sends an SRS and a first response message to the network-side device, instructing the network-side device to enable the first function.

[0139] The first response message may be carried by the SRS, or the first response message and the SRS may be sent separately by the terminal. After receiving the SRS and the first response message, the network-side device uses sensing information to assist in communication.

[0140] In embodiments of this application, when the network-side device supports the first function and the channel quality at a first moment is less than a first threshold, the terminal sends an SRS and a first response message to the network-side device to instruct the network-side device to enable the first function, i.e., to use sensing information to assist communication. The terminal's decision on whether to enable the first function based on whether the network-side device supports it and the channel quality at the first moment effectively improves the flexibility of terminal decision-making. Using sensing information to assist communication enhances the performance of integrated sensing communication and improves the accuracy of communication beamforming.

[0141] As an optional embodiment, the use of sensing information to assist communication includes:

[0142] The scatterer angle spectrum between the network-side device and the scatterer is used to assist in the estimation of the communication channel. The scatterer angle spectrum is information obtained by the network-side device through sensing scanning.

[0143] In this embodiment, the first function may be to use the scatterer angle spectrum between the network-side device and the scatterer to assist in communication channel estimation. The network-side device performs a sensing scan and can obtain the omnidirectional scatterer angle spectrum based on the sensing echo signal. After receiving the SRS and the first response message sent by the terminal, the network-side device uses the scatterer angle spectrum obtained from the scan to assist in communication channel estimation.

[0144] As an optional embodiment, the method further includes:

[0145] The network-side device receives a Probe Reference Signal (SRS) request message, the SRS request message including first indication information, the first indication information being used to indicate whether the network-side device supports or does not support the first function.

[0146] In this embodiment, the network-side device sends an SRS request message to the terminal. The SRS request message carries first indication information, which indicates whether the network-side device supports a first function. The terminal determines whether the network-side device supports the first function based on the first indication information. Optionally, the terminal can determine whether the network-side device supports the first function after accessing the network-side device, thereby deciding whether to use the first function; or, the terminal can determine whether the network-side device supports the first function when accessing the network-side device and having a sensing service, thereby deciding whether to use the first function; or, the terminal can determine whether the network-side device supports the first function when the channel quality degrades after accessing the network-side device, thereby deciding whether to use the first function. Optionally, for the same network-side device, the terminal can determine whether the network-side device supports the first function only once and store the result.

[0147] Optionally, when the terminal instructs the application of the first function through the first response message, the network-side device may use the first function when there is a service being detected; or the network-side device may use the first function within a predetermined time period, wherein the predetermined time period is predefined, configured, or agreed upon by a protocol; or the network-side device may use the first function when it determines that the channel quality has degraded, and may stop using the first function after the channel quality has recovered.

[0148] As an optional embodiment, the method further includes:

[0149] Read the channel quality at the first moment from the stored information;

[0150] or,

[0151] In the absence of storing the channel quality at the first moment, the highest received channel quality for receiving broadcast signals is determined to be the channel quality at the first moment.

[0152] In this embodiment, the terminal can preset a channel quality threshold, namely the first threshold. The terminal can measure and store the channel quality values ​​at different times in real time or at preset intervals. The channel quality at the previous moment is read from the stored information. If the channel quality at the previous moment is less than the first threshold, the first function is used; if the channel quality at the previous moment is greater than the first threshold, the first function is not used.

[0153] Alternatively, if the terminal has not yet stored the channel quality of the previous moment, it can select the best received channel quality when receiving broadcast signals as the channel quality of the previous moment, and determine whether to use the first function based on whether the channel quality is greater than the first threshold.

[0154] As an optional embodiment, the method further includes:

[0155] Receive scheduling information sent by the network-side device;

[0156] Configure time-domain and / or frequency-domain resources for receiving downlink data according to the scheduling information;

[0157] The downlink data sent by the network-side device is received using the time-domain resources and / or frequency-domain resources.

[0158] In this embodiment, after receiving the first response message and SRS, the network-side device determines to use the first function and performs communication channel estimation using the scatterer angle spectrum obtained by sensing scanning. Based on the estimated communication channel, the network-side device obtains more accurate communication beamforming.

[0159] Network-side devices can also obtain a set of sensing target information through sensing scanning. Based on the obtained set of sensing target information, they can identify targets or regions of interest, thereby achieving more precise sensing beamforming. Network-side devices allocate new sensing resources according to sensing requirements for refined sensing, while the remaining resources are used for communication data transmission. The network-side devices send this resource allocation result to the terminal via scheduling information, enabling the terminal to receive downlink data using time-domain and / or frequency-domain resources.

[0160] Optionally, the method further includes: storing the channel quality at the current moment when receiving downlink data sent by the network-side device.

[0161] In this embodiment, the terminal receives downlink data sent by the network-side device and measures and stores the channel quality at the current moment, which can be used to decide whether to enable the first function at the next moment.

[0162] In embodiments of this application, the terminal and network-side device execute a communication method based on sensor integration, wherein the process executed by the terminal specifically includes:

[0163] Step 11: The terminal receives an SRS request message sent by the network-side device and determines whether the network-side device supports the first function, such as whether it has the function of sensing-assisted communication, based on the request message.

[0164] The SRS request message received by the terminal includes: SRS resource configuration information and first indication information. Optionally, the SRS resource configuration information includes: time domain configuration, frequency domain configuration, and transmission method. The first indication information is used to indicate whether the network-side device supports the capability of sensing-assisted communication.

[0165] Once the terminal determines that the network-side device supports the first function, proceed to the next step.

[0166] When the terminal determines that the network-side device does not have the function of sensing-assisted communication, it follows the traditional approach, that is, it sends SRS to the network-side device. The network-side device performs uplink channel estimation and designs precoding based on the received SRS, and sends scheduling commands to the terminal or performs downlink data transmission based on the precoding.

[0167] Regarding the use of sensory information to assist in communication:

[0168] In NLOS communication, the communication path is base station-scatterer-UE. Sensing can provide the angular spectrum between the base station and the scatterer, thus reducing the amount of unknown information in the communication channel and enabling more accurate communication channel estimation. For example, comparing MMSE channel estimation with angular spectrum information with traditional MMSE channel estimation without this information, simulations show that the communication channel estimation with sensing assistance is 2-3 dB better than the unassisted one, corresponding to a spectral efficiency improvement of 20% or more.

[0169] Step 12: When the terminal determines that the network-side device supports the first function, the terminal decides whether to use the first function.

[0170] The terminal can set a channel quality threshold (the first threshold). The terminal reads the channel quality at the previous moment. If the channel quality at the previous moment is less than the threshold, the first function is used; if the channel quality at the previous moment is greater than the threshold, the first function is not used. If the terminal has not yet stored the channel quality at the previous moment, it can select the best receiving channel quality when receiving broadcast signals as the channel quality at the previous moment.

[0171] The terminal sets up a response message for sensing auxiliary communication indication information (the first response message) to respond to whether the first function is used.

[0172] It should be noted that the execution order of steps 1 and 2 above is not limited. The terminal can first determine whether the network-side device supports the first function, and then determine whether to use the first function; or it can first determine whether to use the first function, and then determine whether the network-side device supports the first function.

[0173] Step 13: The terminal sends SRS and first response information to the network-side device.

[0174] Step 14: The terminal receives scheduling information and data transmission sent by the network-side device.

[0175] The terminal configures its receiving time-domain and / or frequency-domain resources based on the scheduling information sent by the network-side equipment, and uses the configured resources to receive downlink data sent by the network-side equipment. The terminal measures and stores the channel quality at the current moment.

[0176] The specific procedures executed by the network-side devices include:

[0177] Step 21: Configure the sensing time-frequency resources and communication time-frequency resources on the network side devices;

[0178] Step 22: The network-side device performs a full-area sensing scan to acquire and store the direction-scatterer angle spectrum information set. Full-area sensing scan refers to sequentially scanning the environment surrounding the network-side device according to the beam direction.

[0179] Network-side devices obtain the scatterer angle spectrum set and the sensing target information set based on the sensed echo signal. Each sensing target information set Ap includes {distance, Doppler, angle, position, ...};

[0180] The direction-scatterer angle spectrum information set refers to a dataset containing all beam directions and their corresponding scatterer angle spectra. The scatterer angle spectrum refers to the diagonal spectrum information formed when the transmission angle equals the reception angle due to self-transmission and self-reception by network-side equipment. This scatterer angle spectrum can be used for subsequent auxiliary communication channel estimation, improving the accuracy of channel estimation.

[0181] Step 23: The network-side device sends an SRS request message and a perception-assisted communication indication message (the first indication message) to the terminal;

[0182] Step 24: The network-side device receives the SRS and first response message sent by the terminal, and performs channel estimation based on the received SRS and sensing-assisted communication information in the same direction.

[0183] In this step, the network-side device selects the scatterer angle spectrum with the same direction or the same center angle direction from the set of all directions-scatterer angle spectrum information based on the direction of the communication receiving beam.

[0184] The network-side device constructs a channel estimator based on the angular spectrum of scatterers in the same direction, which integrates sensing information. After performing channel estimation in conjunction with the SRS received signal, the estimated communication channel is obtained.

[0185] Step 25: The network-side equipment performs inductive precoding design and inductive resource allocation according to service requirements;

[0186] Network-side equipment obtains more accurate communication beamforming Wc based on communication estimation channels;

[0187] Network-side devices based on the acquired target information set Obtain the target or area of ​​interest This leads to more accurate sensing beamforming.

[0188] Network-side devices obtain new sensing resource allocations based on sensing needs for fine-grained sensing, while the remaining resources are used for communication data transmission.

[0189] Step 26: The network-side equipment sends new communication signals and sensing signals according to the new precoding design and the new communication sensing resource allocation to perform sensing and communication.

[0190] The following example illustrates the process by which a terminal determines whether a network-side device supports the first function, and whether to use the first function.

[0191] Suppose the UE first determines whether the network-side device supports the first function and then decides whether to use the first function.

[0192] For the UE:

[0193] (1) The UE obtains the SRS request message sent by the base station and reads the sensing-assisted communication indication information (the first indication information) configured by the network side therein. The indication information is, for example, the sensing-assisted communication indicator (SACI). When the base station has the first capability, SACI = 1 is configured; otherwise, SACI = 0 is configured.

[0194] (2) When the UE determines that the base station has the function of sensing-assisted communication, that is, when SACI = 1, it proceeds to the next step.

[0195] (3) The UE sets a channel quality threshold Q1. Q1 can be the signal-to-noise and interference ratio (SINR), or the reference signal received power (RSRP), etc.

[0196] The UE reads the received quality Q2 at the previous moment stored. If Q2 < Q1, the UE determines that it needs to use the function of sensing-assisted communication; if Q2 ≥ Q1, it does not use this function. Q2 is the received quality of the UE receiving the downlink reference signal transmitted by the base station. The downlink reference signal is, for example, the channel state information reference signal (CSI-RS).

[0197] If the UE fails to read Q2, that is, the UE does not store the Q2 information, it selects the best received quality when receiving the broadcast signal as Q2.

[0198] (4) The UE sets a sensing-assisted communication indication information response message (the first response message). The first response message is, for example, SACI_ACK. If it needs to use the sensing-assisted communication capability of the network side, SACI_ACK = 1 is set; otherwise, SACI_ACK = 0 is set.

[0199] (5) The UE sends the SRS containing SACI_ACK to the base station.

[0200] The following gives an example to illustrate the implementation process of the network-side device using the first function, that is, using sensing information to assist communication, as Figure 2 shown.

[0201] (1) The network side periodically sends sensing signals and receives sensing echo signals to construct and store the sensing scatterer angle spectrum set.

[0202] Assume the network-side device transmits a sensing signal x1 in one direction and receives a sensing echo signal y1. Since the origin angle of the sensing channel equals the echo angle, when the number of transmitting and receiving antennas is the same, the steering vector of the transmitting and receiving beams is the same, denoted as y1. According to the guide vector Given the number of base station antennas, the corresponding dictionary matrix A can be obtained. Based on dictionary matrix A, the sensed signal x1, and the sensed echo signal y1, a least-squares problem is constructed, and solving it yields the scatterer angle spectrum in that direction. The scatterer angular spectrum Specifically, it is expressed as follows:

[0203]

[0204] Among them, Y sen To sense the received echo signal matrix, A BS W is the dictionary matrix corresponding to the base station antenna. sen This is the radar beam matrix.

[0205] according to The final scatterer angular spectrum ASD can be obtained, i.e.

[0206]

[0207] Where ||·||1 represents the L1 norm of the vector, which is the sum of the absolute values ​​of all elements of the vector. All elements of ASD are non-negative and their sum is 1.

[0208] After scanning all directions, the network-side device obtains the scatterer angle spectrum in all directions, constructs and stores the direction-scatterer angle spectrum information set.

[0209] (2) The network-side equipment assists in estimating the communication channel based on the direction-scatterer angle spectrum information set.

[0210] After receiving the uplink SRS signal y2, the network-side device selects the corresponding scatterer angle spectrum from the direction-scatterer angle spectrum information set according to the beam direction of the received signal. Based on the scatterer angle spectrum, the number of base station antennas, and the number of UE antennas, it constructs a channel estimator B for fused sensing information. Then, based on the channel estimator B and the uplink SRS signal y2, it uses a channel estimation algorithm to obtain the estimated uplink channel H′. c The channel estimation algorithms mentioned include, for example, the MMSE channel estimation algorithm and the Zero Forcing (ZF) channel estimation algorithm. Channel estimation using this method is more accurate than traditional channel estimation without assisted information.

[0211] Figure 2 The channel estimator that integrates sensing information can be expressed as:

[0212]

[0213] Among them, W com R is the uplink pilot matrix. UE R is the user-side channel autocorrelation matrix. BS is the base station-side channel autocorrelation matrix, and ASD is the scatterer angle spectrum.

[0214] (3) The network-side equipment obtains the sensing target information set based on the sensing echo signal. Based on the perceived target information set Obtain the target or area of ​​interest For example, a region of interest can be formed when there is more than one target (denoted as P) within the coverage area of ​​the same beam, such as a moving target or a target remaining after filtering out environmental targets by comparing with a previously stored environmental map.

[0215] (4) When the higher-level management issues a target tracking service requirement or a precise sensing service requirement, the network-side equipment will... The specific sensing information is used to reconfigure sensing resources, and the remaining resources are used for communication.

[0216] Specifically, when the higher-level management issues a target tracking service requirement, the network-side equipment, according to... The velocity V of the P sensed targets is obtained. max According to V max The OFDM symbol spacing N of the time-domain sensing resources is readjusted to satisfy the formula. λ is the wavelength, T s It is the duration of an OFDM symbol. This indicates rounding up to the nearest integer.

[0217] like Figure 3 As shown, time period 1 is the time-frequency resource configured during periodic scanning. Periodic scanning is a coarse scan with a limited duration T and N=1. In time period 2, while keeping the sensing duration unchanged (ranging accuracy unchanged), N is increased to reduce the ranging range, and the remaining resources are used for communication.

[0218] When the high-level management issues the precise sensing service requirements, the new sensing duration T is calculated based on the new ranging accuracy requirement ΔV (included in the precise sensing service requirements). total Satisfying formula T total =λ / (2ΔV). Based on the perception duration T total Obtain the OFDM symbol interval N of the time-domain-aware resource: V is the speed at which the target is perceived.

[0219] like Figure 4 As shown, time period 1 and Figure 3 Consistent, with a total duration of T, the perceived total duration of time segment 2 increases to T. total This improves ranging accuracy, optimizes the interval configuration of sensing time-domain resources, saves sensing resources, and uses the remaining resources for communication.

[0220] In this embodiment, the UE decides whether to use the sensing-assisted communication function based on channel quality; the network-side device obtains the scatterer angle spectrum based on the sensing echo signal to assist in the estimation of the communication uplink channel; the network-side device adjusts the distribution of sensing time-domain and frequency-domain resources according to the sensing service request, and uses the remaining idle resources for communication. This sensing-assisted communication method can effectively improve the UE's flexibility, and by using sensing signals to assist in communication channel estimation, it can improve the performance of communication channel estimation, thereby improving the accuracy of communication beamforming. The network-side device adjusts the allocation of communication sensing resources for the next time period in conjunction with sensing information, which can effectively improve communication spectral efficiency and sensing accuracy, and enhance the performance of the integrated system.

[0221] In embodiments of this application, when the network-side device supports the first function and the channel quality at a first moment is less than a first threshold, the terminal sends an SRS and a first response message to the network-side device to instruct the network-side device to enable the first function, i.e., to use sensing information to assist communication. The terminal's decision on whether to enable the first function based on whether the network-side device supports it and the channel quality at the first moment effectively improves the flexibility of terminal decision-making. Using sensing information to assist communication enhances the performance of integrated sensing communication and improves the accuracy of communication beamforming.

[0222] like Figure 5 As shown, this application embodiment also provides a communication method based on integrated sensing, executed by a network-side device, including:

[0223] Step 501: Receive the SRS and the first response message sent by the terminal, wherein the first response message is used to indicate the application of a first function; the first function includes: a function of using sensing information to assist in communication;

[0224] Step 502: Based on the first response message and the first beam direction of the received SRS, determine the sensing information corresponding to the first beam direction;

[0225] Step 503: Communicate based on the perceived information and the SRS.

[0226] In this embodiment, the terminal determines whether the network-side device supports the first function and whether the channel quality at the first moment is less than a first threshold. If the network-side device supports the first function and the channel quality at the first moment is less than the first threshold, the terminal sends an SRS and a first response message to the network-side device, instructing the network-side device to apply the first function.

[0227] After receiving the SRS and the first response message, the network-side device applies the first function. Specifically, based on the beam direction of the received SRS, it determines the sensing information corresponding to that beam direction, and uses the sensing information and the SRS to communicate, thereby realizing communication assisted by sensing information.

[0228] The first function may be a function of sensing-assisted communication, such as one or more of the following: using sensing information to assist in communication channel estimation, using sensing information to assist in communication beam management, and using sensing information to assist in communication coverage enhancement.

[0229] In an embodiment of this application, the network-side device receives the SRS and a first response message sent by the terminal, and determines to enable a first function based on the first response message, namely, using sensing information to assist communication. Specifically, the network-side device determines the corresponding sensing information based on the beam direction of the received SRS, and uses this sensing information and the received SRS to communicate, realizing the function of sensing-assisted communication, which can improve the performance of integrated sensing communication and improve the accuracy of communication beamforming.

[0230] As an optional embodiment, before receiving the SRS and the first response message sent by the receiving terminal, the method further includes:

[0231] An SRS request message is sent to the terminal. The SRS request message includes first indication information, which is used to indicate whether the network-side device supports or does not support the first function.

[0232] In this embodiment, the network-side device sends an SRS request message to the terminal. The SRS request message carries first indication information, which indicates whether the network-side device supports a first function. The terminal determines whether the network-side device supports the first function based on the first indication information.

[0233] Optionally, when the terminal instructs the application of the first function through the first response message, the network-side device may use the first function when there is a service being detected; or the network-side device may use the first function within a predetermined time period, wherein the predetermined time period is predefined, configured, or agreed upon by a protocol; or the network-side device may use the first function when it determines that the channel quality has degraded, and may stop using the first function after the channel quality has recovered.

[0234] As an optional embodiment, determining sensing information corresponding to the first beam direction based on the first response message and the first beam direction of the received SRS includes:

[0235] The first function is applied based on the first response message;

[0236] The first scatterer angle spectrum corresponding to the direction of the first beam is selected from the scatterer angle spectrum information set; the scatterer angle spectrum information set is information obtained by the network-side device through sensing and scanning.

[0237] The communication based on the sensed information and the SRS includes:

[0238] Communication channel estimation is performed based on the first scatterer angular spectrum and the SRS.

[0239] In this embodiment, the first function may be to use the scatterer angle spectrum between the network-side device and the scatterer to assist in communication channel estimation. The network-side device performs a sensing scan and can obtain the omnidirectional scatterer angle spectrum based on the sensing echo signal, which is called the scatterer angle spectrum information set. After receiving the SRS and the first response message sent by the terminal, the network-side device determines the scatterer angle spectrum corresponding to the first beam direction from the scatterer angle spectrum information set based on the first beam direction of the received SRS to assist in communication channel estimation.

[0240] Optionally, the method further includes: performing a sensing scan to obtain a scatterer angle spectrum information set and / or a sensing target information set; wherein the scatterer angle spectrum information set includes the scatterer angle spectrum corresponding to the global beam direction.

[0241] In this embodiment, the network-side device performs a full-area sensing scan to acquire and store a set of direction-scatterer angle spectrum information. Full-area sensing scan refers to sequentially scanning the environment surrounding the network-side device according to the beam direction. The network-side device obtains the scatterer angle spectrum set and the sensing target information set based on the sensed echo signals. Each sensing target information set Ap includes {distance, Doppler, angle, position, ...}.

[0242] The direction-scatterer angle spectrum information set refers to a dataset containing all beam directions and their corresponding scatterer angle spectra. The scatterer angle spectrum refers to the diagonal spectrum information formed when the transmission angle equals the reception angle due to self-transmission and self-reception by network-side equipment. This scatterer angle spectrum can be used for subsequent auxiliary communication channel estimation, improving the accuracy of channel estimation.

[0243] Optionally, the step of estimating the communication channel based on the first scatterer angular spectrum and the SRS includes:

[0244] A channel estimator is constructed based on the first scatterer angle spectrum; communication channel estimation is performed based on the SRS and using the channel estimator.

[0245] In this embodiment, after receiving the SRS signal, the network-side device selects the corresponding first scatterer angle spectrum from the scatterer angle spectrum information set according to the beam direction of the received signal. Based on the first scatterer angle spectrum, the number of base station antennas and the number of UE antennas, a channel estimator for fused sensing information is constructed. Then, based on the channel estimator and the SRS signal, an uplink communication estimated channel is obtained using a channel estimation algorithm.

[0246] The channel estimator that fuses sensing information can be represented as:

[0247]

[0248] Among them, W com R is the uplink pilot matrix. UE R is the user-side channel autocorrelation matrix. BS is the base station-side channel autocorrelation matrix, and ASD is the scatterer angle spectrum.

[0249] Channel estimation using this method is more accurate than traditional channel estimation without identifiable information assistance.

[0250] As an optional embodiment, the method further includes:

[0251] Based on business requirements and the set of sensing target information, increase the orthogonal frequency division multiplexing (OFDM) symbol spacing of sensing resources; based on the OFDM symbol spacing of sensing resources, adjust other resources outside of sensing resources to become communication resources.

[0252] In this embodiment, the network-side device can allocate sensing resources and communication resources based on the sensing target information set obtained from sensing scanning. Specifically, the network-side device increases the OFDM symbol spacing of the sensing resources according to the service requirements of higher layers and the sensing target information set. While maintaining the sensing duration unchanged, increasing the OFDM symbol spacing can reduce the ranging range, and the remaining resources are used for communication.

[0253] Optionally, increasing the orthogonal frequency division multiplexing (OFDM) symbol spacing of sensing resources according to business requirements and the sensing target information set includes:

[0254] Upon receiving a target tracking service request, the maximum moving speed of the sensed target is determined based on the sensed target information set; the OFDM symbol interval of the sensed resources is adjusted based on the maximum moving speed.

[0255] or,

[0256] Upon receiving a precise sensing service request, the sensing duration is determined based on the ranging accuracy indicated by the precise sensing service request and the sensing target information set; the OFDM symbol interval of the sensing resources is adjusted based on the sensing duration.

[0257] In this embodiment, the network-side device obtains the sensing target information set based on the sensing echo signal. Based on the perceived target information set Obtain the target or area of ​​interest For example, a region of interest can be formed when there is more than one target (denoted as P) within the coverage area of ​​the same beam, such as a moving target or a target remaining after filtering out environmental targets by comparing with a previously stored environmental map.

[0258] When higher management issues a target tracking service requirement or a precise sensing service requirement, the network-side devices, based on... The specific sensing information is used to reconfigure sensing resources, and the remaining resources are used for communication.

[0259] Specifically, when the higher-level management issues a target tracking service requirement, the network-side equipment, according to... The velocity V of the P sensed targets is obtained. max According to V max The OFDM symbol spacing N of the time-domain sensing resources is readjusted to satisfy the formula. λ is the wavelength, T s It is the duration of an OFDM symbol. This indicates rounding up to the nearest integer.

[0260] like Figure 3 As shown, time period 1 is the time-frequency resource configured during periodic scanning. Periodic scanning is a coarse scan with a limited duration T and N=1. In time period 2, while keeping the sensing duration unchanged (ranging accuracy unchanged), N is increased to reduce the ranging range, and the remaining resources are used for communication.

[0261] When the high-level management issues the precise sensing service requirements, the new sensing duration T is calculated based on the new ranging accuracy requirement ΔV (included in the precise sensing service requirements). total Satisfying formula T total =λ / (2ΔV). Based on the perception duration T total Obtain the OFDM symbol interval N of the time-domain-aware resource:

[0262] like Figure 4 As shown, time period 1 and Figure 3 Consistent, with a total duration of T, the perceived total duration of time segment 2 increases to T. totalThis improves ranging accuracy, optimizes the interval configuration of sensing time-domain resources, saves sensing resources, and uses the remaining resources for communication.

[0263] Optionally, the method further includes: performing beamforming based on the result of the communication channel estimation; and sending scheduling information to the terminal, the scheduling information including time-domain resources and / or frequency-domain resources for receiving downlink data.

[0264] In this embodiment, the network-side device utilizes sensing signals to assist in communication channel estimation, which improves the performance of communication channel estimation and thus enhances the accuracy of communication beamforming. The network-side device combines sensing information to adjust the allocation of communication sensing resources for the next time period, effectively improving communication spectral efficiency and sensing accuracy, and enhancing the performance of the integrated system.

[0265] In an embodiment of this application, the network-side device receives the SRS and a first response message sent by the terminal, and determines to enable a first function based on the first response message, namely, using sensing information to assist communication. Specifically, the network-side device determines the corresponding sensing information based on the beam direction of the received SRS, and uses this sensing information and the received SRS to communicate, realizing the function of sensing-assisted communication, which can improve the performance of integrated sensing communication and improve the accuracy of communication beamforming.

[0266] The above embodiments describe the communication method based on integrated sensing in this application. The following embodiments will further describe the corresponding devices in conjunction with the accompanying drawings.

[0267] Specifically, such as Figure 6 As shown, this application embodiment provides a communication device 600 based on integrated sensing, applied to a terminal, including:

[0268] The first transmitting unit 610 is configured to transmit a probe reference signal (SRS) and a first response message to the network-side device when the network-side device supports the first function and the channel quality at the first moment is less than a first threshold.

[0269] The first function includes: the function of using sensing information to assist in communication;

[0270] The channel quality at the first moment is the channel quality at the moment before the terminal determines that the network-side device supports the first function; the first response message is used to indicate the application of the first function.

[0271] Optionally, the use of sensing information to assist communication includes:

[0272] The scatterer angle spectrum between the network-side device and the scatterer is used to assist in the estimation of the communication channel. The scatterer angle spectrum is information obtained by the network-side device through sensing scanning.

[0273] Optionally, the device further includes:

[0274] The second receiving unit is configured to receive a Probe Reference Signal (SRS) request message sent by a network-side device. The SRS request message includes first indication information, which is used to indicate whether the network-side device supports or does not support the first function.

[0275] Optionally, the device further includes:

[0276] The reading unit is used to read the channel quality at the first moment from the stored information;

[0277] or,

[0278] The second determining unit is configured to determine, in the absence of storing the channel quality at the first moment, the highest received channel quality for receiving broadcast signals is the channel quality at the first moment.

[0279] Optionally, the device further includes:

[0280] The third receiving unit is used to receive scheduling information sent by the network-side device;

[0281] The configuration unit is configured to configure time-domain resources and / or frequency-domain resources for receiving downlink data according to the scheduling information.

[0282] The fourth receiving unit is used to receive downlink data sent by the network-side device using the time-domain resources and / or frequency-domain resources.

[0283] Optionally, the device further includes:

[0284] The storage unit is used to store the channel quality at the current moment when receiving downlink data sent by the network-side device.

[0285] It should be noted that the apparatus provided in this application embodiment can implement all the method steps implemented in the method embodiment applied to the terminal, and can achieve the same technical effect. Here, the parts that are the same as those in the method embodiment and the beneficial effects will not be described in detail.

[0286] Specifically, such as Figure 7 As shown, this application embodiment provides a communication device 700 based on integrated sensing, applying network-side equipment, including:

[0287] The first receiving unit 710 is configured to receive SRS and a first response message sent by the terminal, wherein the first response message is used to indicate the application of a first function; the first function includes: a function of using sensing information to assist in communication.

[0288] The first determining unit 720 is configured to determine sensing information corresponding to the first beam direction based on the first response message and the first beam direction of receiving the SRS.

[0289] The communication unit 730 is used to communicate based on the sensed information and the SRS.

[0290] Optionally, the first determining unit is specifically used for:

[0291] The first function is applied based on the first response message;

[0292] The first scatterer angle spectrum corresponding to the direction of the first beam is selected from the scatterer angle spectrum information set; the scatterer angle spectrum information set is information obtained by the network-side device through sensing and scanning.

[0293] The communication based on the sensed information and the SRS includes:

[0294] Communication channel estimation is performed based on the first scatterer angular spectrum and the SRS.

[0295] Optionally, the step of estimating the communication channel based on the first scatterer angular spectrum and the SRS includes:

[0296] A channel estimator is constructed based on the angular spectrum of the first scatterer;

[0297] Communication channel estimation is performed based on the SRS and using the channel estimator.

[0298] Optionally, the device further includes:

[0299] The second sending unit is used to send an SRS request message to the terminal. The SRS request message includes first indication information, which is used to indicate whether the network-side device supports or does not support the first function.

[0300] Optionally, the device further includes:

[0301] The sensing and scanning unit is used to perform sensing and scanning to obtain a set of scatterer angular spectrum information and / or a set of sensing target information.

[0302] The scatterer angle spectrum information set includes the scatterer angle spectrum corresponding to the global beam direction.

[0303] Optionally, the device further includes:

[0304] The first processing unit is used to increase the orthogonal frequency division multiplexing (OFDM) symbol spacing of the sensing resources according to business requirements and the sensing target information set.

[0305] The second processing unit is used to adjust other resources outside the sensing resources into communication resources according to the OFDM symbol interval of the sensing resources.

[0306] Optionally, the first processing unit is specifically used for:

[0307] Upon receiving a target tracking service request, the maximum moving speed of the sensed target is determined based on the sensed target information set; the OFDM symbol interval of the sensed resources is adjusted based on the maximum moving speed.

[0308] or,

[0309] Upon receiving a precise sensing service request, the sensing duration is determined based on the ranging accuracy indicated by the precise sensing service request and the sensing target information set; the OFDM symbol interval of the sensing resources is adjusted based on the sensing duration.

[0310] Optionally, the first processing unit is specifically used for:

[0311] Beamforming is performed based on the results of the communication channel estimation.

[0312] The terminal is sent scheduling information, which includes time-domain resources and / or frequency-domain resources for receiving downlink data.

[0313] It should be noted that the apparatus provided in this application embodiment can implement all the method steps implemented in the method embodiment applied to the network side device, and can achieve the same technical effect. Here, the parts that are the same as those in the method embodiment and the beneficial effects will not be described in detail.

[0314] It should be noted that the division of units in the embodiments of this application is illustrative and only represents one logical functional division. In actual implementation, other division methods may be used. Furthermore, the functional units in the various embodiments of this application can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit. The integrated units described above can be implemented in hardware or as software functional units.

[0315] If the integrated unit is implemented as a software functional unit and sold or used as an independent product, it can be stored in a processor-readable storage medium. Based on this understanding, the technical solution of this application, in essence, or the part that contributes to the prior art, or all or part of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) or processor to execute all or part of the steps of the methods described in the various embodiments of this application. The aforementioned storage medium includes various media capable of storing program code, such as USB flash drives, portable hard drives, read-only memory (ROM), random access memory (RAM), magnetic disks, or optical disks.

[0316] like Figure 8 As shown, embodiments of this application also provide a terminal, including: a memory 820, a transceiver 800, and a processor 810; wherein, the memory 820 is used to store computer programs; the transceiver 800 is used to receive and send data under the control of the processor 810; and the processor 810 is used to read the computer program in the memory and perform the following operations:

[0317] If the network-side device supports the first function and the channel quality at the first moment is less than the first threshold, a probe reference signal (SRS) and a first response message are sent to the network-side device.

[0318] The first function includes: the function of using sensing information to assist in communication;

[0319] The channel quality at the first moment is the channel quality at the moment before the terminal determines that the network-side device supports the first function; the first response message is used to indicate the application of the first function.

[0320] Optionally, the use of sensing information to assist communication includes:

[0321] The scatterer angle spectrum between the network-side device and the scatterer is used to assist in the estimation of the communication channel. The scatterer angle spectrum is information obtained by the network-side device through sensing scanning.

[0322] Optionally, the processor is configured to read the computer program in the memory and perform the following operations:

[0323] The network-side device receives a Probe Reference Signal (SRS) request message, the SRS request message including first indication information, the first indication information being used to indicate whether the network-side device supports or does not support the first function.

[0324] Optionally, the processor is configured to read the computer program in the memory and perform the following operations:

[0325] Read the channel quality at the first moment from the stored information;

[0326] or,

[0327] In the absence of storing the channel quality at the first moment, the highest received channel quality for receiving broadcast signals is determined to be the channel quality at the first moment.

[0328] Optionally, the processor is configured to read the computer program in the memory and perform the following operations:

[0329] Receive scheduling information sent by the network-side device;

[0330] Configure time-domain and / or frequency-domain resources for receiving downlink data according to the scheduling information;

[0331] The downlink data sent by the network-side device is received using the time-domain resources and / or frequency-domain resources.

[0332] Optionally, the processor is configured to read the computer program in the memory and perform the following operations:

[0333] When receiving downlink data sent by the network-side device, store the channel quality at the current moment.

[0334] Among them, Figure 8 In this context, the bus architecture can include any number of interconnected buses and bridges, specifically linking various circuits of one or more processors represented by processor 810 and memory represented by memory 820 together. The bus architecture can also link various other circuits such as peripheral devices, voltage regulators, and power management circuits, which are well known in the art and therefore will not be described further herein. The bus interface provides an interface. The transceiver 800 can be multiple components, including transmitters and transceivers, providing a unit for communicating with various other devices over a transmission medium, including wireless channels, wired channels, optical fibers, etc. For different user equipment, the user interface 830 can also be an interface capable of connecting external or internal devices, including but not limited to keypads, displays, speakers, microphones, joysticks, etc.

[0335] The processor 810 is responsible for managing the bus architecture and general processing, while the memory 820 can store the data used by the processor 810 during operation.

[0336] Optionally, the processor 810 can be a central processing unit (CPU), an application-specific integrated circuit (ASIC), a field-programmable gate array (FPGA), or a complex programmable logic device (CPLD), and the processor can also adopt a multi-core architecture.

[0337] The processor executes any of the methods described in the embodiments of this application according to the obtained executable instructions by calling a computer program stored in memory. The processor and memory may also be physically separated.

[0338] It should be noted that the terminal provided in this application embodiment can implement all the method steps implemented in the method embodiment applied to the terminal, and can achieve the same technical effect. Here, the parts that are the same as those in the method embodiment and the beneficial effects will not be described in detail.

[0339] like Figure 9 As shown, embodiments of this application also provide a network-side device, including: a memory 920, a transceiver 900, and a processor 910; wherein, the memory 920 is used to store computer programs; the transceiver 900 is used to receive and send data under the control of the processor 910; and the processor 910 is used to read the computer program in the memory and perform the following operations:

[0340] The receiving terminal sends an SRS and a first response message, the first response message being used to indicate the application of a first function; the first function includes: a function of using sensing information to assist in communication;

[0341] Based on the first response message and the first beam direction of the received SRS, determine the sensing information corresponding to the first beam direction;

[0342] Communication is performed based on the perceived information and the SRS.

[0343] Optionally, the processor is configured to read the computer program in the memory and perform the following operations:

[0344] The first function is applied based on the first response message;

[0345] The first scatterer angle spectrum corresponding to the direction of the first beam is selected from the scatterer angle spectrum information set; the scatterer angle spectrum information set is information obtained by the network-side device through sensing and scanning.

[0346] The communication based on the sensed information and the SRS includes:

[0347] Communication channel estimation is performed based on the first scatterer angular spectrum and the SRS.

[0348] Optionally, the processor is configured to read the computer program in the memory and perform the following operations:

[0349] A channel estimator is constructed based on the angular spectrum of the first scatterer;

[0350] Communication channel estimation is performed based on the SRS and using the channel estimator.

[0351] Optionally, the processor is configured to read the computer program in the memory and perform the following operations:

[0352] An SRS request message is sent to the terminal. The SRS request message includes first indication information, which is used to indicate whether the network-side device supports or does not support the first function.

[0353] Optionally, the processor is configured to read the computer program in the memory and perform the following operations:

[0354] Perform a sensing scan to obtain a set of scatterer angular spectrum information and / or a set of sensing target information;

[0355] The scatterer angle spectrum information set includes the scatterer angle spectrum corresponding to the global beam direction.

[0356] Optionally, the processor is configured to read the computer program in the memory and perform the following operations:

[0357] Based on business requirements and the set of perceived target information, increase the symbol spacing of the orthogonal frequency division multiplexing (OFDM) of the sensing resources;

[0358] Based on the OFDM symbol interval of the sensing resources, other resources outside the sensing resources are adjusted to communication resources.

[0359] Optionally, the processor is configured to read the computer program in the memory and perform the following operations:

[0360] Upon receiving a target tracking service request, the maximum moving speed of the sensed target is determined based on the sensed target information set; the OFDM symbol interval of the sensed resources is adjusted based on the maximum moving speed.

[0361] or,

[0362] Upon receiving a precise sensing service request, the sensing duration is determined based on the ranging accuracy indicated by the precise sensing service request and the sensing target information set; the OFDM symbol interval of the sensing resources is adjusted based on the sensing duration.

[0363] Optionally, the processor is configured to read the computer program in the memory and perform the following operations:

[0364] Beamforming is performed based on the results of the communication channel estimation.

[0365] The terminal is sent scheduling information, which includes time-domain resources and / or frequency-domain resources for receiving downlink data.

[0366] Among them, Figure 9 In this context, the bus architecture can include any number of interconnected buses and bridges, specifically linking various circuits together, represented by one or more processors (processor 910) and memory (memory 920). The bus architecture can also link various other circuits such as peripheral devices, voltage regulators, and power management circuits, which are well known in the art and therefore will not be described further herein. The bus interface provides an interface. The transceiver 900 can be multiple elements, including transmitters and transceivers, providing a unit for communicating with various other devices over transmission media, including wireless channels, wired channels, optical fibers, etc. The processor is responsible for managing the bus architecture and general processing. The processor 910 is responsible for managing the bus architecture and general processing, and the memory 920 can store data used by the processor 910 during operation.

[0367] The processor 910 can be a central processing unit (CPU), an application-specific integrated circuit (ASIC), a field-programmable gate array (FPGA), or a complex programmable logic device (CPLD). The processor can also adopt a multi-core architecture.

[0368] It should be noted that the network-side device provided in this application embodiment can implement all the method steps implemented in the method embodiment applied to the network-side device, and can achieve the same technical effect. Here, the parts that are the same as those in the method embodiment and the beneficial effects will not be described in detail.

[0369] In addition, specific embodiments of this application also provide a processor-readable storage medium storing a program for causing the processor to execute the steps of the aforementioned communication method based on inductive integration, achieving the same technical effect. To avoid repetition, this will not be elaborated further here. The readable storage medium can be any available medium or data storage device accessible to the processor, including but not limited to magnetic storage (e.g., floppy disks, hard disks, magnetic tapes, magneto-optical disks (MO), etc.), optical storage (e.g., CDs, DVDs, BDs, HVDs, etc.), and semiconductor storage (e.g., ROMs, EPROMs, EEPROMs, non-volatile memory (NAND flash), solid-state drives (SSDs), etc.).

[0370] It should be noted that the technical solutions provided in this application can be applied to a variety of systems. For example, applicable systems may include Long Term Evolution (LTE) systems, LTE Frequency Division Duplex (FDD) systems, LTE Time Division Duplex (TDD) systems, Long Term Evolution Advanced (LTE-A) systems, Universal Mobile Telecommunication System (UMTS), Worldwide Interoperability for Microwave Access (WiMAX) systems, 5G New Radio (NR) systems and their evolved communication systems, and 6G (sixth generation mobile communication technology) systems. These systems may include terminal equipment and network equipment. The systems may also include a core network component, such as the Evolved Packet Core (EPC) and the 5G Core Network (5GC).

[0371] The terminal devices involved in the embodiments of this application can be devices that provide voice and / or data connectivity to users, handheld devices with wireless connectivity, or other processing devices connected to a wireless modem. The names of the terminal devices may differ in different systems; for example, in 5G or 6G systems, the terminal device may be called User Equipment (UE). Wireless terminal devices can be USB storage devices, other personal computer memory devices, and dongles. They can also communicate with one or more core networks (CNs) via a Radio Access Network (RAN). Wireless terminal devices can be mobile terminal devices, such as mobile phones (or "cellular" phones) and computers with mobile terminal devices. For example, they can be portable, pocket-sized, handheld, computer-embedded, or vehicle-mounted mobile devices that exchange voice and / or data with the radio access network. Examples of such devices include Personal Communication Service (PCS) phones, cordless phones, Session Initiated Protocol (SIP) phones, Wireless Local Loop (WLL) stations, Personal Digital Assistants (PDAs), personal computers, tablets, and Machine-type Communication (MTC) terminal devices. Wireless terminal devices can also be referred to as systems, subscriber units, subscriber stations, mobile stations, mobile devices, remote stations, access points, remote terminals, access terminals, user terminals, user agents, user devices, and wireless access devices and routers / modems that meet the limitations of this definition; however, this application does not limit the scope of the embodiments.

[0372] The network-side equipment involved in this application embodiment can be a base station, which may include multiple cells providing services to terminals. Depending on the specific application, the base station may also be called an access point, or a device in the access network that communicates with the wireless terminal device through one or more sectors on the air interface, or other names. The network-side equipment can be used to exchange received air frames with Internet Protocol (IP) packets, acting as a router between the wireless terminal device and the rest of the access network, where the rest of the access network may include an Internet Protocol (IP) communication network. The network-side equipment can also coordinate the attribute management of the air interface. For example, the network-side equipment involved in this application embodiment can be an evolved network device (eNB or e-NodeB) in a long term evolution (LTE) system, a 5G base station (gNB) in a next generation system, or a Home evolved Node B (HeNB), relay node, femto, pico, network testing equipment, etc., and is not limited in this application embodiment. In some network architectures, network-side devices may include centralized unit (CU) nodes and distributed unit (DU) nodes, which may also be geographically separated.

[0373] Network devices and terminal devices can each use one or more antennas to perform Multiple-Input Multiple-Output (MIMO) transmission. MIMO transmission can be single-user MIMO or multi-user MIMO. Depending on the configuration and number of antenna combinations, MIMO transmission can be 2D-MIMO, 3D-MIMO, FD-MIMO, or massive-MIMO, and can also be diversity transmission, precoding transmission, or beamforming transmission, etc.

[0374] Those skilled in the art will understand that embodiments of this application can be provided as methods, systems, or computer program products. Therefore, this application can take the form of a completely hardware embodiment, a completely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, this application can take the form of a computer program product implemented on one or more computer-usable storage media (including, but not limited to, disk storage and optical storage) containing computer-usable program code.

[0375] This application is described with reference to flowchart illustrations and / or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of this application. It will be understood that each block of the flowchart illustrations and / or block diagrams, and combinations of blocks in the flowchart illustrations and / or block diagrams, can be implemented by computer-executable instructions. These computer-executable instructions can be provided to a processor of a general-purpose computer, special-purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in one or more blocks of the flowchart illustrations and / or one or more blocks of the block diagrams.

[0376] These processor-executable instructions may also be stored in a processor-readable memory that can instruct a computer or other programmable data processing device to operate in a particular manner, such that the instructions stored in the processor-readable memory produce an article of manufacture including instruction means that implement the functions specified in one or more flowcharts and / or one or more blocks of a block diagram.

[0377] These processor-executable instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer-implemented process, such that the instructions, which execute on the computer or other programmable apparatus, provide steps for implementing the functions specified in one or more flowcharts and / or one or more blocks of a block diagram.

[0378] Obviously, those skilled in the art can make various modifications and variations to this application without departing from the spirit and scope of this application. Therefore, if such modifications and variations fall within the scope of the claims of this application and their equivalents, this application also intends to include such modifications and variations.

Claims

1. A communication method based on integrated sensing, characterized in that, Executed by the terminal, including: If the network-side device supports the first function and the channel quality at the first moment is less than the first threshold, a probe reference signal (SRS) and a first response message are sent to the network-side device. The first function includes: the function of using sensing information to assist in communication; The channel quality at the first moment is the channel quality at the moment before the terminal determines that the network-side device supports the first function; the first response message is used to indicate the application of the first function.

2. The method according to claim 1, characterized in that, The method of using sensing information to assist in communication includes: The scatterer angle spectrum between the network-side device and the scatterer is used to assist in the estimation of the communication channel. The scatterer angle spectrum is information obtained by the network-side device through sensing scanning.

3. The method according to claim 1, characterized in that, The method further includes: The network-side device receives a Probe Reference Signal (SRS) request message, the SRS request message including first indication information, the first indication information being used to indicate whether the network-side device supports or does not support the first function.

4. The method according to claim 1, characterized in that, The method further includes: Read the channel quality at the first moment from the stored information; or, In the absence of storing the channel quality at the first moment, the highest received channel quality for receiving broadcast signals is determined to be the channel quality at the first moment.

5. The method according to claim 1, characterized in that, The method further includes: Receive scheduling information sent by the network-side device; Configure time-domain and / or frequency-domain resources for receiving downlink data according to the scheduling information; The downlink data sent by the network-side device is received using the time-domain resources and / or frequency-domain resources.

6. The method according to claim 5, characterized in that, The method further includes: When receiving downlink data sent by the network-side device, store the channel quality at the current moment.

7. A communication method based on integrated sensing, characterized in that, Performed by network-side devices, including: The receiving terminal sends an SRS and a first response message, the first response message being used to indicate the application of a first function; the first function includes: a function of using sensing information to assist in communication; Based on the first response message and the first beam direction of the received SRS, determine the sensing information corresponding to the first beam direction; Communication is performed based on the perceived information and the SRS.

8. The method according to claim 7, characterized in that, Based on the first response message and the first beam direction of the received SRS, the sensing information corresponding to the first beam direction is determined, including: The first function is applied based on the first response message; The first scatterer angle spectrum corresponding to the direction of the first beam is selected from the scatterer angle spectrum information set; the scatterer angle spectrum information set is information obtained by the network-side device through sensing and scanning. The communication based on the sensed information and the SRS includes: Communication channel estimation is performed based on the first scatterer angular spectrum and the SRS.

9. The method according to claim 8, characterized in that, The step of estimating the communication channel based on the first scatterer angular spectrum and the SRS includes: A channel estimator is constructed based on the angular spectrum of the first scatterer; Communication channel estimation is performed based on the SRS and using the channel estimator.

10. The method according to claim 7, characterized in that, Before receiving the SRS and first response message sent by the receiving terminal, the method further includes: An SRS request message is sent to the terminal. The SRS request message includes first indication information, which is used to indicate whether the network-side device supports or does not support the first function.

11. The method according to claim 7 or 8, characterized in that, The method further includes: Perform a sensing scan to obtain a set of scatterer angular spectrum information and / or a set of sensing target information; The scatterer angle spectrum information set includes the scatterer angle spectrum corresponding to the global beam direction.

12. The method according to claim 11, characterized in that, The method further includes: Based on business requirements and the set of perceived target information, increase the symbol spacing of the orthogonal frequency division multiplexing (OFDM) of the sensing resources; Based on the OFDM symbol interval of the sensing resources, other resources outside the sensing resources are adjusted to communication resources.

13. The method according to claim 12, characterized in that, The step of increasing the Orthogonal Frequency Division Multiplexing (OFDM) symbol spacing of sensing resources according to business requirements and the sensing target information set includes: Upon receiving a target tracking service request, the maximum moving speed of the sensed target is determined based on the sensed target information set; the OFDM symbol interval of the sensed resources is adjusted based on the maximum moving speed. or, Upon receiving a precise sensing service request, the sensing duration is determined based on the ranging accuracy indicated by the precise sensing service request and the sensing target information set; the OFDM symbol interval of the sensing resources is adjusted based on the sensing duration.

14. The method according to claim 8 or 12, characterized in that, The method further includes: Beamforming is performed based on the results of communication channel estimation. The terminal is sent scheduling information, which includes time-domain resources and / or frequency-domain resources for receiving downlink data.

15. A terminal, characterized in that, include: Memory, transceiver, processor: Memory, used to store computer programs; A transceiver, used to receive and send data under the control of the processor; Processor, configured to read the computer program in the memory and perform the following operations: If the network-side device supports the first function and the channel quality at the first moment is less than the first threshold, a probe reference signal (SRS) and a first response message are sent to the network-side device. The first function includes: the function of using sensing information to assist in communication; The channel quality at the first moment is the channel quality at the moment before the terminal determines that the network-side device supports the first function; the first response message is used to indicate the application of the first function.

16. The terminal according to claim 15, characterized in that, The method of using sensing information to assist in communication includes: The scatterer angle spectrum between the network-side device and the scatterer is used to assist in the estimation of the communication channel. The scatterer angle spectrum is information obtained by the network-side device through sensing scanning.

17. The terminal according to claim 15, characterized in that, The processor is used to read the computer program in the memory and perform the following operations: The network-side device receives a Probe Reference Signal (SRS) request message, the SRS request message including first indication information, the first indication information being used to indicate whether the network-side device supports or does not support the first function.

18. The terminal according to claim 15, characterized in that, The processor is used to read the computer program in the memory and perform the following operations: Read the channel quality at the first moment from the stored information; or, In the absence of storing the channel quality at the first moment, the highest received channel quality for receiving broadcast signals is determined to be the channel quality at the first moment.

19. The terminal according to claim 15, characterized in that, The processor is used to read the computer program in the memory and perform the following operations: Receive scheduling information sent by the network-side device; Configure time-domain and / or frequency-domain resources for receiving downlink data according to the scheduling information; The downlink data sent by the network-side device is received using the time-domain resources and / or frequency-domain resources.

20. The terminal according to claim 19, characterized in that, The processor is used to read the computer program in the memory and perform the following operations: When receiving downlink data sent by the network-side device, store the channel quality at the current moment.

21. A network-side device, characterized in that, include: Memory, transceiver, processor: Memory, used to store computer programs; A transceiver, used to receive and send data under the control of the processor; Processor, configured to read the computer program in the memory and perform the following operations: The receiving terminal sends an SRS and a first response message, the first response message being used to indicate the application of a first function; the first function includes: a function of using sensing information to assist in communication; Based on the first response message and the first beam direction of the received SRS, determine the sensing information corresponding to the first beam direction; Communication is performed based on the perceived information and the SRS.

22. The device according to claim 21, characterized in that, The processor is used to read the computer program in the memory and perform the following operations: The first function is applied based on the first response message; Select the first scatterer angle spectrum corresponding to the direction of the first beam from the scatterer angle spectrum information set; The scatterer angular spectrum information set is obtained by sensing and scanning by network-side devices. The communication based on the sensed information and the SRS includes: Communication channel estimation is performed based on the first scatterer angular spectrum and the SRS.

23. The device according to claim 22, characterized in that, The processor is used to read the computer program in the memory and perform the following operations: A channel estimator is constructed based on the angular spectrum of the first scatterer; Communication channel estimation is performed based on the SRS and using the channel estimator.

24. The device according to claim 21, characterized in that, The processor is used to read the computer program in the memory and perform the following operations: An SRS request message is sent to the terminal. The SRS request message includes first indication information, which is used to indicate whether the network-side device supports or does not support the first function.

25. The device according to claim 21 or 22, characterized in that, The processor is used to read the computer program in the memory and perform the following operations: Perform a sensing scan to obtain a set of scatterer angular spectrum information and / or a set of sensing target information; The scatterer angle spectrum information set includes the scatterer angle spectrum corresponding to the global beam direction.

26. The device according to claim 25, characterized in that, The processor is used to read the computer program in the memory and perform the following operations: Based on business requirements and the set of perceived target information, increase the symbol spacing of the orthogonal frequency division multiplexing (OFDM) of the sensing resources; Based on the OFDM symbol interval of the sensing resources, other resources outside the sensing resources are adjusted to communication resources.

27. The device according to claim 26, characterized in that, The processor is used to read the computer program in the memory and perform the following operations: Upon receiving a target tracking service request, the maximum moving speed of the sensed target is determined based on the sensed target information set; the OFDM symbol interval of the sensed resources is adjusted based on the maximum moving speed. or, Upon receiving a precise sensing service request, the sensing duration is determined based on the ranging accuracy indicated by the precise sensing service request and the sensing target information set; the OFDM symbol interval of the sensing resources is adjusted based on the sensing duration.

28. The device according to claim 22 or 26, characterized in that, The processor is used to read the computer program in the memory and perform the following operations: Beamforming is performed based on the results of communication channel estimation. The terminal is sent scheduling information, which includes time-domain resources and / or frequency-domain resources for receiving downlink data.

29. A communication device based on integrated sensing, characterized in that, include: The first transmitting unit is configured to transmit a probe reference signal (SRS) and a first response message to the network-side device when the network-side device supports the first function and the channel quality at the first moment is less than a first threshold. The first function includes: the function of using sensing information to assist in communication; The channel quality at the first moment is the channel quality at the moment before the terminal determines that the network-side device supports the first function; the first response message is used to indicate the application of the first function.

30. A communication device based on integrated sensing, characterized in that, include: The first receiving unit is configured to receive the SRS and the first response message sent by the terminal, wherein the first response message is used to indicate the application of the first function; The first function includes: the function of using sensing information to assist in communication; The first determining unit is configured to determine sensing information corresponding to the first beam direction based on the first response message and the first beam direction of receiving the SRS. A communication unit is used to communicate based on the sensed information and the SRS.

31. A processor-readable storage medium, characterized in that, The processor-readable storage medium stores a program for causing the processor to perform the method according to any one of claims 1 to 6, or to perform the method according to any one of claims 7 to 14.

Images