Communication sensing method, network device, and computer program product

Abstract

Embodiments of the present disclosure provide a communication sensing method, a network device, and a computer program product. First information from a second node is received by a first node, wherein the first information is used for determining related information of a reference signal used for a sensing service; and the first node performs the sensing service on the basis of the first information.

Description

Communication sensing methods, network devices and computer program products

[0001] Cross-reference of related applications

[0002] This application is based on and claims priority to Chinese patent application CN202510205360.3, filed on February 24, 2025, entitled “Communication Sensing Method, Network Device and Computer Program Product”, the entire contents of which are incorporated herein by reference. Technical Field

[0003] This disclosure relates to the field of communications, and more specifically, to a communication sensing method, network device, and computer program product. Background Technology

[0004] Sensing-communication integration has been listed as an important research direction for 6G by the ITU. Many schemes exist for reference signals used in sensing; however, existing schemes all have drawbacks to varying degrees. For example, introducing sensing reference signals can significantly impact existing communication systems. Furthermore, reusing communication signals for sensing may result in performance limitations. Additionally, some existing communication reference signals may have long transmission periods and poor sequence correlation, making it impossible to achieve satisfactory sensing performance for high-speed moving targets. Summary of the Invention

[0005] This disclosure provides a communication sensing method, a network device, and a computer program product.

[0006] According to one embodiment of this disclosure, a communication sensing method is provided, comprising: a first node receiving first information from a second node, wherein the first information is used to determine reference signal related information for participating in sensing services; and the first node performing sensing services based on the first information.

[0007] According to another embodiment of this disclosure, a communication sensing method is provided, comprising: a second node sending first information to a first node, so that the first node performs sensing services based on the first information, wherein the first information is used to determine reference signal related information for participating in the sensing services.

[0008] According to yet another embodiment of this disclosure, a network device is also provided, the network device including a receiver, a transmitter, and a processor, the network device being configured to perform the steps of any of the above method embodiments via at least one of the receiver, the transmitter, and the processor.

[0009] According to yet another embodiment of this disclosure, a computer-readable storage medium is also provided, wherein a computer program is stored therein, wherein the computer program is configured to perform the steps in any of the above method embodiments when it is run.

[0010] According to yet another embodiment of this disclosure, an electronic device is also provided, including a memory and a processor, wherein the memory stores a computer program and the processor is configured to run the computer program to perform the steps in any of the above method embodiments.

[0011] According to yet another embodiment of this disclosure, a computer program product is also provided, including a computer program that, when executed by a processor, implements the steps in any of the above method embodiments. Attached Figure Description

[0012] Figure 1 is a hardware structure block diagram of a mobile terminal for a communication sensing method according to an embodiment of the present disclosure;

[0013] Figure 2 is a flowchart of a communication sensing method according to an embodiment of the present disclosure;

[0014] Figure 3 is another flowchart of the communication sensing method according to an embodiment of the present disclosure;

[0015] Figure 4 is a structural block diagram of a network device according to an embodiment of this disclosure. Detailed Implementation

[0016] The embodiments of this disclosure will be described in detail below with reference to the accompanying drawings and examples.

[0017] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of the embodiments of this disclosure are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence.

[0018] In related technologies, in communication systems, a reference signal is transmitted for channel estimation. In a narrow sense, channel estimation estimates the channel at the location where the reference signal is placed. In a broader sense, channel estimation estimates the channel at the location where the data is placed after estimating the pilot signal's location. Using the known channel information and the received signal, the transmitted data can then be recovered; this process is also called equalization.

[0019] In related technologies, radar systems achieve different sensing performance based on varying reference signal settings on time-frequency resources, such as pulse repetition period and signal bandwidth. A comparison between communication systems and radar systems reveals that radar systems utilize reference signal resources for location sensing.

[0020] In related technologies, denser slow-time dimension measurements can achieve higher unambiguous speeds. Furthermore, by utilizing more cumulative measurements, the signal-to-noise ratio (SNR) can be improved, thereby obtaining higher perception accuracy.

[0021] The method embodiments provided in this application can be executed in a mobile terminal, computer terminal, or similar computing device. Taking a mobile terminal as an example, FIG1 is a hardware structure block diagram of a mobile terminal for the communication sensing method of this disclosure. As shown in FIG1, the mobile terminal may include one or more (only one is shown in FIG1) processors 102 (processor 102 may include, but is not limited to, processing devices such as microprocessors MCUs or programmable logic devices FPGAs) and a memory 104 for storing data. The mobile terminal may also include a transmission device 106 for communication functions and an input / output device 108. Those skilled in the art will understand that the structure shown in FIG1 is only illustrative and does not limit the structure of the mobile terminal. For example, the mobile terminal may also include more or fewer components than shown in FIG1, or have a different configuration than shown in FIG1.

[0022] The memory 104 can be used to store computer programs, such as application software programs and modules, like the computer program corresponding to the communication sensing method in this embodiment. The processor 102 executes various functional applications and data processing by running the computer program stored in the memory 104, thus implementing the above-described method. The memory 104 may include high-speed random access memory and may also include non-volatile memory, such as one or more magnetic storage devices, flash memory, or other non-volatile solid-state memory. In some instances, the memory 104 may further include memory remotely located relative to the processor 102, and these remote memories can be connected to the mobile terminal via a network. Examples of such networks include, but are not limited to, the Internet, corporate intranets, local area networks, mobile communication networks, and combinations thereof.

[0023] The transmission device 106 is used to receive or send data via a network. Specific examples of the network described above may include a wireless network provided by the mobile terminal's communication provider. In one example, the transmission device 106 includes a Network Interface Controller (NIC), which can connect to other network devices via a base station to communicate with the Internet. In another example, the transmission device 106 may be a Radio Frequency (RF) module, used for wireless communication with the Internet.

[0024] This embodiment provides a communication sensing method. Figure 2 is a flowchart of the communication sensing method according to this embodiment. As shown in Figure 2, the process includes the following steps:

[0025] In step S202, the first node receives first information from the second node, wherein the first information is used to determine reference signal related information for participating in the sensing service.

[0026] In this embodiment of the disclosure, the first node and the second node can both be UE, base station BS, or core network element.

[0027] In this embodiment of the disclosure, the reference signal related information includes at least reference signal information, measurement information for sensing services based on the reference signal, estimation information, etc.

[0028] In one exemplary embodiment, the first information includes at least one of the following: perception reporting related request information; configuration parameter information.

[0029] In this embodiment of the disclosure, when the second node is a core network element, the configuration parameter information received by the first node from the core network element is the configuration parameter information recommended by the core network element to the first node. The first node may or may not adopt this information.

[0030] In one exemplary embodiment, the sensing and reporting related request information includes: first indication information, which is used to indicate a reference signal for sensing services.

[0031] In this embodiment of the disclosure, the first indication information may be 1 bit information, which may include a candidate RS list, indicating which RSs or resources can be used for sensing services.

[0032] In one exemplary embodiment, the sensing reporting related request information includes at least one of the following: information related to the time / frequency / spatial resources to be reported; channel-related information related to the sensing reference signal to be reported; measurement information of the sensing reference signal; measurement information of additional communication reference signals and / or positioning reference signals; estimation information of the sensing reference signal; and estimation information of additional communication reference signals and / or positioning reference signals.

[0033] In one exemplary embodiment, the perception reporting related request information is used to request the first node to report measurement information or estimation information corresponding to at least a portion of the resources of the reference signal.

[0034] In this embodiment of the disclosure, the measurement reporting request requests the reporting of measurement or estimation information corresponding to a portion of the resources of the reference signal.

[0035] Step S204: The first node performs sensing services based on the first information.

[0036] In one exemplary embodiment, the method further includes: the first node sending perception reporting information to the second node.

[0037] In one exemplary embodiment, the sensed reporting information includes at least one of the following: timestamp information of the first node; time difference information; angle or angle difference information; reference signal or channel-related attribute parameters.

[0038] In one exemplary embodiment, the time difference information includes at least one of the following: the time difference between the first node receiving a signal and transmitting a signal; the time difference between two transmissions by the first node; the time difference between two receptions by the first node; and the time difference between the first node transmitting a signal and receiving a signal.

[0039] In an exemplary embodiment, the angle or angle difference information includes at least one of the following: the angle or angle difference obtained by the first node through sensing measurement; the angle or angle difference configured by the second node.

[0040] In one exemplary embodiment, the channel-related attribute parameters include at least one of the following: antenna beam information; quasi-co-location relationship of the reference signal; antenna port relationship; time-domain and / or frequency-domain resource information of the reference signal; time window; frequency-domain occupied bandwidth of the reference signal; antenna relative position information; sensing / communication area of ​​the reference signal.

[0041] In one exemplary embodiment, the sensing and reporting information includes at least one of the following: measurement information of the sensing reference signal; measurement information of additional communication reference signals and / or positioning reference signals; estimation information of the sensing reference signal; and estimation information of additional communication reference signals and / or positioning reference signals.

[0042] In this embodiment of the disclosure, the method further includes: the first node receiving configuration parameter information from the second node, the configuration parameter information being used to perceive services.

[0043] In one exemplary embodiment, the type of configuration parameter information includes at least one of the following: configuration parameters for communication; configuration parameters for positioning; and configuration parameters for sensing.

[0044] In one exemplary embodiment, the first node receives configuration parameter information from the second node, including: the first node directly receives the configuration parameter information from the second node; or, the first node receives the configuration parameter information from the second node through a third node.

[0045] In this embodiment of the disclosure, the first node receives configuration parameter information from the second node, including: the first node receives configuration parameter information recommended by the second node, and determines the resources used for sensing services based on the recommended configuration parameter information.

[0046] In one exemplary embodiment, the resources used for sensing services include at least one of the following: resources configured for sensing services; reusable communication resources; reusable positioning resources; and reusable sensing resources.

[0047] In one exemplary embodiment, the method further includes: the first node sending a sensing-related capability to the second node, the sensing-related capability being used to indicate whether the first node supports sensing services using a communication reference signal, or whether the first node can use information on a corresponding portion of the bandwidth of a communication reference signal to perform sensing services.

[0048] In one exemplary embodiment, the method further includes: the first node receiving a perception-related capability reporting request from the second node.

[0049] In one exemplary embodiment, the first node sends perception-related capabilities to the second node, including: the first node directly sending the perception-related capabilities to the second node; or, the node sending the perception-related capabilities to the second node through a third node.

[0050] In this embodiment of the disclosure, the first node, the second node, and the third node can all be UEs, base stations (BSs), or core network elements.

[0051] In one exemplary embodiment, the method further includes: a first node receiving second indication information from a second node, the second indication information being used to indicate whether the first node uses estimated information for sensing measurement reporting and / or sensing calculation.

[0052] In one exemplary embodiment, the method further includes: the first node receiving virtual reference signal configuration information from the second node, wherein the virtual reference signal or the virtual channel corresponding to the virtual reference signal is a resource location where no reference signal is transmitted.

[0053] In one exemplary embodiment, the virtual reference signal configuration information includes the resource location of the virtual reference signal and the real reference signal information that was reported to participate in obtaining the virtual reference signal.

[0054] In one exemplary embodiment, the channel parameters of the resource location of the virtual reference signal are obtained by channel estimation based on the sensed reference signal and the real reference signal reported to participate in obtaining the virtual reference signal.

[0055] In this embodiment, SenRS and DMRS are used for channel estimation to interpolate the channel parameters for all blank locations. Here, DMRS refers to the real reference signal used to obtain the virtual reference signal. The channel parameters for the blank locations correspond to the channel parameters of the resource locations of the virtual reference signal.

[0056] In one exemplary embodiment, the reference signal or the channel corresponding to the reference signal participating in the sensing service has the same attribute parameters; or, the difference in the attribute parameters of the reference signal or the channel corresponding to the reference signal participating in the sensing service meets a preset difference range.

[0057] This embodiment provides a communication sensing method. Figure 3 is another flowchart of the communication sensing method according to this embodiment. As shown in Figure 3, the process includes the following steps:

[0058] In step S302, the second node sends first information to the first node so that the first node can perform sensing services based on the first information, wherein the first information is used to determine reference signal related information for participating in the sensing services.

[0059] In one exemplary embodiment, the first information includes at least one of the following: perception reporting related request information; configuration parameter information.

[0060] In one exemplary embodiment, the method further includes: the second node receiving perception reporting information from the first node.

[0061] In one exemplary embodiment, the method further includes: a second node receiving a sensing-related capability from a first node, the sensing-related capability being used to indicate whether the first node supports sensing services using a communication reference signal, or whether the first node can use information on a corresponding portion of the bandwidth of a communication reference signal to perform sensing services.

[0062] In one exemplary embodiment, the method further includes: the second node sending a perception-related capability reporting request to the first node.

[0063] In one exemplary embodiment, the method further includes: the second node sending second indication information to the first node, the second indication information being used to indicate whether the first node uses the estimated information for sensing measurement reporting and / or sensing calculation.

[0064] In one exemplary embodiment, the method further includes: the second node sending virtual reference signal configuration information to the first node, wherein the virtual reference signal or virtual channel is a resource location where no reference signal is transmitted.

[0065] This disclosure provides a communication sensing method in which a first node receives first information from a second node, wherein the first information is used to determine reference signal-related information for participating in sensing services; the first node performs sensing services based on the first information. This method solves the problems of poor sensing performance and high resource overhead in related technologies, enabling high-performance transmission and improving system sensing performance.

[0066] Through the above description of the embodiments, those skilled in the art can clearly understand that the methods according to the above embodiments can be implemented by means of software plus necessary general-purpose hardware platforms. Of course, they can also be implemented by hardware, but in many cases the former is a better implementation method. Based on this understanding, the technical solutions of the embodiments of this disclosure, or the parts that contribute to the prior art, can be embodied in the form of a software product. This computer software product is stored in a storage medium (such as ROM / RAM, magnetic disk, optical disk) and includes several instructions to cause a terminal device (which may be a mobile phone, computer, server, or network device, etc.) to execute the methods described in the embodiments of this disclosure.

[0067] This embodiment also provides a communication sensing device for implementing the above embodiments and preferred embodiments; details already described will not be repeated. As used below, the term "module" can refer to a combination of software and / or hardware that implements a predetermined function. Although the device described in the following embodiments is preferably implemented in software, hardware implementation, or a combination of software and hardware, is also possible and contemplated.

[0068] In this embodiment of the disclosure, the communication sensing device may include different modules, such as a receiving module and a sending module. The naming and functional division of the modules may also be selected in different ways according to the actual situation, and no specific restrictions are imposed here.

[0069] It should be noted that the above modules can be implemented by software or hardware. For the latter, they can be implemented in the following ways, but are not limited to: all the above modules are located in the same processor; or, the above modules are located in different processors in any combination.

[0070] This disclosure also provides a network device. FIG4 is a structural block diagram of the network device according to an embodiment of this disclosure. As shown in FIG4, the network device 400 includes a receiver 401, a transmitter 402 and a processor 403. The network device 400 is used to perform the steps of the above-described communication sensing method embodiment through at least one of the receiver 401, transmitter 402 and processor 403.

[0071] This disclosure also provides a computer-readable storage medium storing a computer program configured to perform the steps in any of the above method embodiments when executed.

[0072] In one exemplary embodiment, the aforementioned computer-readable storage medium may include, but is not limited to, various media capable of storing computer programs, such as a USB flash drive, read-only memory (ROM), random access memory (RAM), portable hard disk, magnetic disk, or optical disk.

[0073] This disclosure also provides an electronic device including a memory and a processor, the memory storing a computer program and the processor being configured to run the computer program to perform the steps in any of the above method embodiments.

[0074] In one exemplary embodiment, the electronic device may further include a transmission device and an input / output device, wherein the transmission device is connected to the processor and the input / output device is connected to the processor.

[0075] This disclosure also provides a computer program product, including a computer program that, when executed by a processor, implements the steps in any of the above method embodiments.

[0076] In one exemplary embodiment, the computer program product described above includes a non-volatile computer-readable storage medium storing a computer program that, when executed by a processor, implements the steps of the methods described in various embodiments of this application.

[0077] Specific examples in this embodiment can be found in the examples described in the above embodiments and exemplary implementations, and will not be repeated here.

[0078] Obviously, those skilled in the art should understand that the modules or steps of the embodiments of this disclosure described above can be implemented using general-purpose computing devices. They can be centralized on a single computing device or distributed across a network of multiple computing devices. They can be implemented using computer-executable program code, and thus can be stored in a storage device for execution by a computing device. In some cases, the steps shown or described can be performed in a different order than those presented herein, or they can be fabricated as separate integrated circuit modules, or multiple modules or steps can be fabricated as a single integrated circuit module. Thus, the embodiments of this disclosure are not limited to any particular combination of hardware and software.

[0079] To enable those skilled in the art to better understand the technical solutions of the embodiments disclosed herein, the following description is provided in conjunction with different embodiments.

[0080] Example 1

[0081] In this embodiment, the perception-related configuration is described.

[0082] In this embodiment of the disclosure, the first node, the second node, and the third node can all be user equipment (UE), base station (BS), or core network element.

[0083] Table 1 is a table of reference signal configuration examples according to embodiments of this disclosure. As shown in Table 1, configuration examples including different types of reference signals are provided. SenRS represents Sensing Reference Signal (SenRS); DMRS represents Demodulation Reference Signal (DMRS); and Virtual RS represents Virtual Reference Signal.

[0084] In this embodiment of the disclosure, the virtual RS / virtual channel (resource location) is configurable and does not necessarily require knowledge of all channels corresponding to resource locations on the range-Doppler (RD) map. A virtual RS / virtual channel refers to a resource location where no reference signal is actually transmitted, but is considered a resource location with known channel information when used for sensing services.

[0085] Table 1. Example of Reference Signal Configuration

[0086] Different schemes can be used in the process of sensing velocity measurement. For example, SenRS can be used alone for sensing velocity measurement. Alternatively, SenRS and DMRS can be used for channel estimation, interpolating the channel parameters for all blank locations. As shown in Table 1, a two-dimensional Fast Fourier Transform (2DFFT) is performed on 4*6 resources to measure sensing distance and velocity. For example, for velocity measurement, taking only the fourth resource element (RE), the fourth row in Table 1, as an example, SenRS and DMRS are non-uniformly quantized, and then Doppler measurements are performed.

[0087] During the sensing speed measurement process, only the SenRS in the last row of Table 1 is used for Doppler estimation. The available information is the same as that after interpolating the intermediate channel using these two SenRS, and it comes only from the two SenRS.

[0088] If DMRS and SenRS are used together for channel estimation interpolation, additional useful information can be introduced during Doppler measurement, thereby improving velocity measurement accuracy. Theoretically, the performance of this scheme is less than or equal to that of transmitting a reference signal at the virtual RS location. For non-uniform quantization, this "equal to" statement has been theoretically verified. Alternatively, non-uniform quantization can be used to interpolate the virtual RS location using channel estimation, followed by sensing and computation.

[0089] In the process of sensing speed measurement, DMRS and SenRS are used together for channel estimation difference. Compared with using SenRS alone, this introduces additional useful information and improves sensing performance. Compared with sensing based on data: Data-based sensing first requires decoding the data, and channel estimation domain equalization is needed during decoding. Compared with directly using virtual RS for sensing, it has lower complexity and lower latency because it does not require obtaining the transmitted data information, and its security is also more reliable.

[0090] In this embodiment of the disclosure, the reference signal / channel used for sensing services may include or be related to the signal / channel. Specifically, the signal includes at least one of the following: DMRS, Phase-Tracking Reference Signal (PTRS), Sounding Reference Signal (SRS), Positioning Reference Signal (PRS), Radio Interface Management Reference Signal (RIM-RS), Side Link Positioning Reference Signal (SL-PRS), and Synchronization Signal Block (SSB). The channel or corresponding signal includes at least one of the following: Physical Broadcast Channel (PBCH), Physical Downlink Shared Channel (PDSCH), Physical Downlink Control Channel (PDCCH), Physical Uplink Control Channel (PUCCH), Physical Uplink Shared Channel (PUSCH), Physical Side Link Shared Channel (PSSCH), Physical Side Link Control Channel (PSCCH), Physical Side Link Feedback Channel (PSFCH), and Physical Random Access Channel (PRACH).

[0091] Table 2 is an example table of virtual RS configuration in an embodiment of this disclosure, and Table 3 is another example table of virtual RS configuration in an embodiment of this disclosure.

[0092] Table 2 Example of Virtual RS Configuration

[0093] Table 3. Another example of virtual RS configuration.

[0094] In this embodiment of the disclosure, the transmission of the above-mentioned virtual RS configuration involves the following signaling flow.

[0095] The Sensing Function (SF) configures / recommends virtual RS configuration information to the UE via Non-Access Stratum (NAS) signaling; the SF configures / recommends virtual RS configuration information to the BS via the network-to-Radio Access Network (RAN) interface; the BS configures virtual RS configuration information to the UE (via Downlink Control Information (DCI) and / or Radio Resource Control (RRC) signaling); the UE reports virtual RS configuration information (via NAS) to the SF; the UE configures virtual RS configuration information (dynamically via Uplink Control Information (UCI)) to the BS; and UE1 configures virtual RS configuration information (dynamically via Sidelink Control Information (SCI)) to UE2.

[0096] In this embodiment of the disclosure, the above signaling process can be executed according to the actual situation, and there is no restriction that one or several must be executed.

[0097] In this embodiment, in the case where the BS transmits and the UE receives, the SF knows that the BS is sending PRS information and also knows that the BS is sending SenRS information. In this case, the SF configures / recommends virtual RS configuration information to the UE via NAS signaling. The UE obtains RS information for sensing through the virtual RS configuration information, including the resource location of the virtual RS and the real RS resource information (PRS and SenRS) used to obtain the virtual RS information. In the case where the BS transmits and the UE receives, the UE can measure the obtained virtual RS configuration and fully utilize generalized channel estimation to obtain better sensing results. In one embodiment, the PRS here is not necessarily the one sent by the BS to the UE for positioning; it can be an RS used for positioning by other UEs.

[0098] In this embodiment of the disclosure, the virtual RS configuration information includes the resource location of the virtual RS and reports the real RS information participating in obtaining the virtual RS. In this embodiment of the disclosure, the method / process for obtaining virtual RS channel information includes at least one of the following:

[0099] In sensing measurement, the measurement results of the virtual RS are obtained based on the actual measurement (the virtual position y is interpolated based on the received signal y, and then the channel information is obtained).

[0100] The channel estimate of the real RS location is obtained based on the real measurement. Based on the real channel estimate result, the virtual channel estimate result corresponding to the virtual RS is obtained (the virtual h is obtained based on the real h).

[0101] In this embodiment of the disclosure, a 1-bit indicator is added to the communication RS to indicate which RSs can be used to join the sensing reference signal. Given a list of sensing reference signals, the transceiver obtains the resource information of the RSs, such as the resource ID; the list can be pre-configured, requiring only dynamic indication of the List ID, or it can default to / 1-bit indicating that all RSs with known resource information and received signals can be used for sensing.

[0102] Example 2

[0103] In this embodiment, the process of sensing measurement reporting and reporting requests is described.

[0104] In the above embodiments, virtual RS configuration is only one implementation method of the technical solution of this application. In actual embodiments, while performing normal RS configuration, additional reporting is added during reporting, corresponding to (additional) reporting requests. The additional reporting requests and additional reporting refer to the channel information corresponding to the virtual RS resource location, which is not actually obtained through measurement; it can be measured or estimated based on measurement.

[0105] Table 4 is an example table of Sensing RS configuration in an embodiment of this disclosure. As shown in Table 4, SenRS reference signal is configured for sensing services, and positioning reference signal PRS also exists.

[0106] Table 4. Example of Sensing RS Configuration

[0107] In this embodiment of the disclosure, an indication is added to the perception reporting request signaling, which allows the PRS to be used to report measurement results. In this case, the reported information includes information corresponding to the SenRS and PRS resource locations.

[0108] In one embodiment, no additional indication is added to the perception reporting request signaling. In this case, during perception reporting, the base station or UE only reports the configured SenRS information. In one embodiment, SenRS can be composed of one or more reference signals. In one embodiment, SenRS can be uniformly distributed across time-domain or frequency-domain resources. Alternatively, it can be non-uniformly distributed across time-domain or frequency-domain resources. Table 5 is an example table of non-uniformly distributed perception RS configurations according to embodiments of this disclosure.

[0109] Table 5 Examples of Non-uniform Distribution of Sensing RS Configuration

[0110] In this embodiment of the disclosure, an indication is added to the sensing reporting request signaling, indicating that the measurement results can be reported using a communication or non-dedicated RS configuration (e.g., using a PRS or an RS configured for other sensing services). In this case, the reported information may include not only information corresponding to the location of dedicated SenRS configurations, but also information corresponding to the location of RS resources in other communication or non-dedicated configurations.

[0111] In one embodiment, the indication may be a 1-bit information indicating whether it is available. In one embodiment, the indication may include a candidate RS list, indicating which RSs can be used for sensing. In one embodiment, the indication may include an RS list, where RSs in the RS list need to be used for sensing reporting.

[0112] In one embodiment, the sensing measurement reporting request information requests expected reporting information. The expected reporting information may be measurement information corresponding to the configuration. In another embodiment, the expected reporting information may be additional reporting information. For example, reference signals or channel information other than the configured SenRS may be obtained through measurement or estimation.

[0113] In one embodiment, this may be information about the desired time-domain and / or frequency-domain and / or spatial-domain resource locations, and channel-related information corresponding to the desired virtual RS. For example, Table 6 is an example table of the sensing RS configuration with additional reference signals according to an embodiment of this disclosure, as shown in Table 6, including Additional Position Reference Information (APS) and / or PRS. Table 7 is another example table of the sensing RS configuration with additional reference signals according to an embodiment of this disclosure.

[0114] Table 6. Example table of sensing RS configurations with additional reference signals.

[0115] Table 7 shows another example of a sensing RS configuration with an additional reference signal.

[0116] In one embodiment, the sensing measurement request requests at least a portion of the resources of a reference signal or channel. In another embodiment, the measurement measurement request requests the reporting of measurement or estimation information corresponding to a portion of the resources of the reference signal, not all configured resources of a reference signal. The reference signal or channel includes at least one of the following: DMRS, PTRS, SRS, PRS, RIM-RS, SL-PRS, SSB, Sen_RS; PBCH, PDSCH, PDCCH, PUCCH, PUSCH, PSSCH, PSCCH, PSFCH, PRACH.

[0117] In one embodiment, the PRS bandwidth is 100 MHz, but the allocated Sensing RS bandwidth is 50 MHz. During sensing, the 100 MHz PRS channel is used for estimation, but only the 50 MHz PRS with the same bandwidth as the Sensing RS is actually available for sensing; the RS outside the Sensing RS bandwidth is not used. Therefore, when sending a sensing measurement reporting request, the request is made to report measurements from the PRS within the available bandwidth, while measurements from outside the requested bandwidth do not need to be reported.

[0118] The measurement reporting request signaling may include a request for at least one of the following related information: measurement information related to the configured SenRS, measurement information related to additional communication and / or positioning reference signals (such as PRS), information estimated using (the configured SenRS), and information estimated using (the additional communication and / or positioning reference signals).

[0119] In this embodiment of the disclosure, after receiving the above-mentioned measurement reporting request signaling, the UE / BS / core network element will initiate a corresponding report.

[0120] In one embodiment, the UE / BS initiates a report, which may include at least one of the following reports: the UE reports to the network-side BS, the UE reports to the requesting UE, the UE reports to a core network element (such as the SF), and the BS reports to a core network element (such as the SF).

[0121] In one embodiment, the BS acts as the sensing transmitter, and the UE acts as the sensing receiver. The BS configures a Sensing Reference Signal (SenRS). The BS also directly or indirectly notifies the UE of the PRS configuration information used for positioning. The BS sends a Measurement Reporting Request signaling to the UE, requesting the UE to report measurement and estimation information related to SenRS and PRS.

[0122] In this case, if the PRS is used for UE positioning, the UE itself needs to report PRS-related measurement results. In this situation, the SenRS measurement results can be reported additionally, and the PRS and SenRS measurement and / or estimation results can be used for sensing, resulting in greater sensing performance gains. Simultaneously, reporting the sensing results along with the positioning measurement results can also save signaling overhead, such as the signaling overhead of reporting requests and / or reporting.

[0123] If the PRS is used for positioning of other UEs, since the UE directly or indirectly obtains the PRS information, the BS also requests the UE to report the PRS-related measurement information as an attachment when reporting the perception measurement information. In this way, while ensuring the same perception performance, resource consumption can be saved. By reusing the PRS information or using the PRS and SenRS together to obtain resource information that is greater than 2, the perception performance can be improved.

[0124] When UE / BS / core network elements report the measurement or estimation results of corresponding signals, they can selectively report one or more related (additional) timestamps, time differences, angles, angle differences, attribute parameters, and use the reported content to sense related services.

[0125] In one embodiment, when the sensing settlement node is a core network element, the core network element requests the UE and / or BS to send sensing measurement and / or estimation results. When the UE and / or BS report the measurement or estimation results of the corresponding signal to the core network, they may optionally report additional timestamps, time differences, or attribute parameters for sensing related services.

[0126] The time difference can be the time difference between receiving and transmitting a signal, the time difference between two transmissions and / or two receptions, or the time difference between transmitting and receiving signals. In one example, the BS first transmits signal 1 (RS1) to the UE, and after a certain period of time, the UE transmits signal 2 (RS2) to the BS. Optionally, after another period of time, the BS transmits signal 3 to the UE. Here, the time difference can be the time difference between receiving and transmitting a signal, the time difference between two transmissions and / or two receptions, or the time difference between transmitting and receiving signals. By measuring and reporting the timestamps or time differences mentioned above, more accurate synchronization information can be obtained, thereby obtaining more accurate sensing results.

[0127] The angle, or angle difference, can be measured by the receiver or be configuration information known to the transmitter, such as beam information, spatial information, spatial filters, bore sight direction (aiming direction or main beam direction), or the difference between the bore sight direction and the target beam direction. The difference between the target beam direction and the bore sight direction can be the difference between the transmitted beam and the bore sight direction, or the difference between the received beam and the bore sight direction; in other words, it is the difference between the angle corresponding to the UE's measured position and the bore sight direction.

[0128] The "bore sight direction" typically refers to the direction of the antenna's main beam (main lobe), or the direction of maximum gain in the antenna's radiation pattern. It is an important characteristic of the antenna, used to describe the spatial position reference of its radiation or reception. The antenna's bore sight direction is the direction directly in front of the antenna's physical structure, usually coinciding with the antenna's geometric central axis (bore sight axis). In the antenna's radiation pattern, the bore sight direction is the direction with the highest radiation gain, also known as the main beam direction.

[0129] In this embodiment of the disclosure, the core network's reporting (sending) may be sent by the core network to the requesting UE, and / or sent by the core network to the requesting BS, or sent by the core network to other core network elements.

[0130] The measurement reporting message may contain at least one of the following related information: measurement information related to the configured SenRS, measurement information related to additional communication and / or positioning reference signals (such as PRS), information estimated using (the configured SenRS), and information estimated using (the additional communication and / or positioning reference signals).

[0131] In one embodiment, the UE is configured for Sensing-related services. According to the configuration, the UE receives reference signals related to sensing and / or communication. The UE receives sensing measurement request information and, according to measurement reporting request information, reports measurement or estimation results. The reported content may include at least one of the following related information: measurement information related to the configured SenRS, measurement information related to additional communication and / or positioning reference signals (such as PRS), information estimated using (the configured SenRS), and information estimated using (additional communication and / or positioning reference signals).

[0132] In one embodiment, the sensing measurement report reports at least a portion of the resources of a reference signal or channel. In another embodiment, the measurement report reports measurement or estimation information corresponding to a portion of the resources of the reference signal, not all configured resources of a reference signal. The reference signal or channel includes at least one of the following: DMRS, PTRS, SRS, PRS, RIM-RS, SL-PRS, SSB, Sen_RS; PBCH, PDSCH, PDCCH, PUCCH, PUSCH, PSSCH, PSCCH, PSFCH, PRACH.

[0133] Example 3

[0134] In this embodiment, the selection of the sensing reference signal is described.

[0135] In this embodiment of the disclosure, when performing sensing-related measurements, sensing-related reporting, or acquiring information about the location of virtual RSs used for sensing, the RSs and / or related channels used (at least one of the following: DMRS, PTRS, SRS, PRS, RIM-RS, SL-PRS, SSB, Sen_RS; PBCH, PDSCH, PDCCH, PUCCH, PUSCH, PSSCH, PSCCH, PSFCH, PRACH) should have the same or similar attribute parameters. That is, for the reference signals or channels participating in sensing, a restriction is added: not all RSs can participate in sensing-related services.

[0136] The attribute parameters are related to at least one of the following: beam information, quasi-colocation (QCL) relationship, port relationship, time and / or frequency domain resource information, time window, frequency domain occupied bandwidth, antenna access resource pool (ARP), and sensing / communication area.

[0137] In one embodiment, the attribute parameters include a sensing / communication area. Within the sensing area corresponding to the current sensing service, the reference signal that can be used for the sensing service is also a reference signal specific to that sensing area. For example, Sen_RS is the RS configured for the current sensing service. Simultaneously, the sensing receiver acquires the reference signal PRS specific to that sensing area. Therefore, when performing sensing reporting or estimating the location information of the virtual RS, the sensing receiver can utilize the PRS and the configured Sen_RS information. Conversely, reference signals acquired by the sensing receiver that are used for areas other than the current sensing area, such as SSB, cannot be used for information acquisition in the current sensing service. This is because the error introduced by such reference signals would outweigh the sensing benefits.

[0138] In one embodiment, joint sensing measurements, reporting, or estimations are performed on different RSs for the same sensing target, which can significantly improve the accuracy of channel measurements for that sensing target, thereby improving the sensing measurement results.

[0139] In one embodiment, RSs with the same beam direction are jointly channel estimated to obtain channel information of the virtual RS resource location, or RSs with relevant beam directions are used in the reported information during sensing reporting. In this way, measurement fusion is performed while ensuring that the same channel conditions are maintained as much as possible, thereby obtaining more accurate sensing information.

[0140] In one embodiment, the selected sensing-related reference signals have the same wide-beam information from the perspective of the transmitted and / or received beams. In one example, the selected sensing-related reference signals are reference signals for the same sector.

[0141] In one embodiment, RSs within a time window are used to participate in sensing-related measurements / reporting or as virtual RS resource locations. Optionally, the time window is related to the channel's coherence time. In one example, the time window corresponds to the coherence time.

[0142] In this embodiment of the disclosure, the signaling process for determining the attribute parameters includes at least one of the following:

[0143] In one example, the attribute parameters are determined by the UE and reported to the network side, and / or the core network side, and / or another UE.

[0144] In another example, the attribute parameters are configured / sent to the UE, and the UE can report / send the configured or received attribute parameters to the network side, and / or the core network side, and / or another UE.

[0145] In one example, the attribute parameters are determined by the BS. The BS can send the determined attribute parameters to the network side, and / or the core network side, and / or the UE.

[0146] In another example, the attribute parameters are determined by the core network element, which can send the determined attribute parameters to the network side, and / or the core network side, and / or the UE.

[0147] For example, in one instance, the time window is determined by the UE itself and reported to the network side, and / or the core network side, and / or another UE. In another instance, the time window is configured / sent to the UE and reported to the network side, and / or the core network side, and / or another UE.

[0148] In this disclosure, exemplary implementations of sensing services based on different resource configurations include the following:

[0149] Case 1: Only PRS symbols are used for sensing services, including sensing measurements and sensing reference signal configuration indications;

[0150] Case 2: A combination of selected RSs is used to perform related sensing services, including sensing measurements and sensing reference signal configuration indications.

[0151] Case 3: For all RSs used for sensing services. In one embodiment, joint channel estimation is performed to obtain the channel information corresponding to the RS resource locations. Further (using methods such as LMMSE, linear interpolation, etc.), information on the locations of Empty subcarriers is obtained. Reference signals used to obtain the Empty subcarrier location information, and / or reference signals that can be directly used for sensing (such as PRS), are used for sensing services. This includes sensing measurements and sensing reference signal configuration indication.

[0152] Case 4: At least a portion of the reference signal is used for sensing services. In one embodiment, information about the location of Empty subcarriers is obtained. In another embodiment, when data is being transmitted, information (channel and / or sensing) corresponding to the data resource location can be selectively acquired for sensing services. For example, before demodulating the data, channel information corresponding to the data resource location can be acquired and used in sensing services. When reporting sensing measurement results, channel information corresponding to the data resource location can be selectively reported.

[0153] In one example, the BS or SF sends a sensing measurement result reporting request to the UE, which indicates the need to report channel-related information concerning data services. In one embodiment, it requests channel-related information on certain resources.

[0154] Example 4

[0155] In this embodiment of the disclosure, different nodes can also transmit (interact) configuration parameter information, which is used to perceive services.

[0156] In this embodiment, from a resource allocation perspective, when configuring the sensing RS, known configuration parameters, such as existing available RS resources, can be utilized to obtain the configuration parameters of the sensing service through an algorithm. This method can fully reuse existing resources, reduce sensing resource overhead, and improve sensing performance.

[0157] In this embodiment of the disclosure, when configuring sensing parameters, known communication, positioning, and / or sensing-related configuration parameters can be used.

[0158] Among them, the communication configuration parameters are used to assist in the parameter configuration of the sensing service; the positioning configuration parameters are used to assist in the parameter configuration of the sensing service; and the sensing configuration parameters are used to assist in the parameter configuration of the sensing service.

[0159] In one embodiment, node 1 has known configuration parameters, and node 2 determines the final configuration parameters used for sensing. At this time, node 1 directly and / or indirectly sends configuration parameter information that can be reused for sensing-related services to node 2.

[0160] In another embodiment, Node 1 has known configuration parameters, and Node 2 determines the final configuration parameters used for sensing. In this case, Node 1 directly and / or indirectly sends the known configuration parameter information to Node 2. Node 2 receives the configuration parameter information and determines reference signals or configuration parameter information to be reused for sensing-related services.

[0161] Node 2 determines the final configuration parameters used for sensing. The final configuration parameters used for sensing include at least one of the following: parameter information configured for sensing services, reusable communication, reusable positioning, and reusable sensing parameter information.

[0162] In one embodiment, when a perception reporting request is made or a perception reporting is made, a perception request is made or a perception reporting is made based on the configured perception parameters.

[0163] In this embodiment of the disclosure, the known configuration parameter information may be communication configuration parameters, location configuration parameters, and / or sensing configuration parameters.

[0164] In this embodiment of the disclosure, indirect transmission can be forwarded through node 3, that is, node 1 sends to node 3 first, and node 3 then forwards it to node 2.

[0165] In one embodiment, the BS sends communication reference signals, positioning reference signals, and / or sensing reference signals to the core network element SF. The SF then forwards the information to the UE. In one embodiment, the SF recommends that the sensing service's RS be configured for the UE and / or the BS.

[0166] In this embodiment of the disclosure, SF recommends RS configuration for sensing services based on the reference signal configuration of the communication reference signal, the positioning reference signal, and / or the sensing reference signal.

[0167] In one embodiment, the SF recommends RS configurations related to sensing services to the UE and / or BS. In one embodiment, the SF sends a measurement request message to the UE and / or BS; the measurement request message contains at least part of the reference signal information used for sensing. In one embodiment, the measurement request message contains information for sensing and other reference signals multiplexed for sensing.

[0168] In one embodiment, the configuration of the reference signal is based on a multiplexed (communication, positioning, sensing) RS, that is, considering the reusable communication RS resources, configuration information for a dedicated sensing reference signal is provided. This allows for flexible configuration of the sensing RS resource locations, achieving the goal of fully reusing existing RSs and saving sensing resources.

[0169] In this embodiment of the disclosure, the information related to the reference signal for communication and the reference signal for positioning may include at least one of the following: DMRS, PTRS, SRS, PRS, RIM-RS, SL-PRS, SSB, Sen_RS; PBCH, PDSCH, PDCCH, PUCCH, PUSCH, PSSCH, PSCCH, PSFCH, PRACH.

[0170] In this embodiment of the disclosure, Node 1, Node 2, and Node 3 can be a UE, a serving cell (BS), a neighboring cell (BS), or a core network element, respectively.

[0171] In one example, the serving BS has known configuration parameters, and the UE determines the configuration parameters that will ultimately be used for sensing. In this case, the serving BS directly and / or indirectly sends configuration parameter information that can be reused for sensing-related services to the UE.

[0172] In another example, the serving BS has known configuration parameters. The UE determines the configuration parameters ultimately used for sensing. In this case, the serving BS directly and / or indirectly sends the known configuration parameter information to the UE. Based on the received configuration parameter information, the UE determines the reference signals or configuration parameter information to be reused for sensing-related services.

[0173] In another example, the serving BS has known configuration parameters and determines the final configuration parameters used for sensing. The serving BS acts as the sensing transmitter, and the UE acts as the sensing receiver. In this case, the serving BS directly and / or indirectly transmits the configuration parameters determined by the serving BS for sensing to the UE.

[0174] The serving BS directly and / or indirectly sends perception reporting request information to the UE. This request information is related to the determined configuration parameters used for perception. The UE directly and / or indirectly sends perception reporting information to the serving BS. This reporting information is related to the determined configuration parameters used for perception.

[0175] In this embodiment of the disclosure, the descriptions such as configuration parameters and parameter information can be resources. That is, descriptions such as determining reusable configuration resources and determining the final sensing reference signal resources. For example, Node 2 determines the resources ultimately used for sensing, which include at least one of the following: resources configured for sensing services, reusable communication resources, reusable positioning resources, and reusable sensing resources.

[0176] Example 5

[0177] In this embodiment, different nodes can also exchange (interact) sensing-related capabilities. Knowing which sensing capabilities a UE possesses is particularly important for the BS or network side. In existing solutions, UE capability reporting in a communication system typically involves the UE reporting to the serving cell, thereby enabling the serving cell to recognize the UE's capabilities and interact with the UE. However, for sensing, whether a UE possesses sensing capabilities first requires information from the BS and / or core network elements to which the UE accesses.

[0178] In this embodiment, the UE reports sensing-related capabilities to the BS. These capabilities may include whether the UE supports sensing services using a communication reference signal, or whether the UE can use information from a corresponding portion of the bandwidth of a communication reference signal for sensing. The BS includes the UE's serving cell. After the serving cell acquires the UE's sensing-related capabilities, the BS can forward these capabilities to other cells, such as neighboring cells, via Xn or other interfaces. Optionally, the BS sends the UE's sensing-related capabilities to a core network element, such as the SF. In one example, after acquiring the UE's capabilities, the core network element SF can allocate sensing services more efficiently, such as selecting which UE to use as the sensing receiver or transmitter.

[0179] In one embodiment, the UE reports perception-related capabilities to the BS, where the BS includes neighboring cells that the UE can access. In perception-related services, the signaling interaction between neighboring cells and the UE plays a crucial role. For example, in multi-site sensing scenarios, multiple sensing transceivers can achieve greater sensing gains, such as reducing sensing blind spots. Therefore, it is particularly important for neighboring cells to obtain the perception-related capabilities reported by the UE.

[0180] In this embodiment of the disclosure, the UE may not report its own UE capabilities directly, but may report them through other devices or nodes.

[0181] In this embodiment of the disclosure, the acquisition of UE-aware-related capabilities is achieved by the serving cell (BS) sending the UE's awareness-related capabilities to the neighboring cell (BS). Upon receiving a UE-aware-related capability request from a neighboring cell, the serving cell may, in one scenario, send a request signaling message to the UE to acquire the UE's awareness-related capabilities, and then send the UE's awareness-related capabilities to the neighboring cell. Alternatively, the serving cell may send the UE's awareness-related capabilities to the requesting neighboring cell.

[0182] In this embodiment of the disclosure, the core network sends the UE's perception-related capabilities to the BS (which may be a serving cell and / or a neighboring cell). Core network elements send the UE's perception-related capabilities to the BS. For example, the BS requests the core network element SF whether the UE supports using non-uniformly quantized (one or more) RS signals for perception, and the SF sends a message to the BS indicating that the UE supports using non-uniformly quantized signals for perception. In this process, the BS may send a request signaling for assistance data to the core network element, while the UE perception-related capabilities sent by the core network to the BS may be assistance data information.

[0183] In this embodiment of the disclosure, the BS (which may be the serving cell and / or a neighboring cell) sends a signaling request for UE perception-related capabilities to the core network element. Upon receiving the signaling request, the BS reports the perception-related capabilities to the core network element. For example, the core network element SF requests the BS whether a UE supports using non-uniformly quantized (one or more) RS signals for perception; the BS sends a message to the SF indicating that the UE supports using non-uniformly quantized signals for perception.

[0184] In this embodiment of the disclosure, the UE may include a UE identifier during the capability request and reporting process after it is determined that the UE is participating in the perception service, indicating that the request, reporting or sending is for the perception-related capabilities of the UE.

[0185] In this embodiment of the disclosure, in the perception service, the perception node's request for perception-related capabilities from the UE is also very important. In addition to the UE reporting its own perception-related capabilities, perception-related devices can also initiate perception-related capability requests to the UE.

[0186] In this embodiment of the disclosure, the serving cell sends a signaling request for sensing-related capabilities to the UE. After receiving the signaling request, the UE reports the sensing-related capabilities to the serving cell. For example, the BS requests the UE whether it supports using a portion of the bandwidth of RS signals for sensing. The UE reports to the BS that it supports using a portion of the bandwidth of communication signals for sensing.

[0187] In this embodiment of the disclosure, the neighboring cell BS sends a signaling request for sensing-related capabilities to the UE. After receiving the signaling request, the UE reports the sensing-related capabilities to the neighboring cell. For example, the neighboring cell BS requests the UE whether it supports multiple communication RS signals for sensing, and the UE reports to the neighboring cell BS that it supports using multiple communication signals for sensing.

[0188] In this embodiment of the disclosure, the core network element sends a signaling request for perception-related capabilities to the UE. After receiving the signaling request, the UE reports the perception-related capabilities to the core network element. For example, the core network element SF requests the UE whether it supports using non-uniformly quantized (one or more) RS signals for perception. The UE reports to the SF that it supports using non-uniformly quantized signals for perception.

[0189] In this embodiment of the disclosure, a neighboring cell (BS) requests the UE's perception-related capabilities from the serving cell (BS). Upon receiving the UE perception-related capability request from the neighboring cell, the serving cell, in one scenario, sends a request signaling message for the perception-related capabilities to the UE, and after acquiring the UE's perception-related capabilities, sends the UE's perception-related capabilities to the neighboring cell. In another scenario, the serving cell sends the UE's perception-related capabilities to the requesting neighboring cell.

[0190] In this embodiment of the disclosure, the BS (which may be the serving cell and / or a neighboring cell) sends a signaling request for UE perception-related capabilities to the core network element. Upon receiving the signaling request, the core network element sends the UE's perception-related capabilities to the BS. For example, the BS requests the core network element SF whether the UE supports using non-uniformly quantized (one or more) RS signals for perception, and the SF sends the UE's support for using non-uniformly quantized signals for perception to the BS. In this process, the BS may send an assistance data request signaling to the core network element, while the UE perception-related capabilities sent by the core network to the BS may be assistance data information.

[0191] In this embodiment of the disclosure, the core network element sends a signaling request for UE perception-related capabilities to the BS (which may be the serving cell and / or a neighboring cell). After receiving the signaling request, the BS reports the perception-related capabilities to the core network element. For example, the core network element SF requests the BS whether a UE supports using non-uniformly quantized (one or more) RS signals for perception; the BS sends a message to the SF that the UE supports using non-uniformly quantized signals for perception.

[0192] In this embodiment of the disclosure, the UE may include a UE identifier during the capability request and reporting process after it is determined that the UE is participating in the perception service, indicating that the request, reporting or sending is for the perception-related capabilities of the UE.

[0193] In this embodiment of the disclosure, the serving cell BS, neighboring cell BS, UE containing UE capabilities, UE participating in awareness, and core network elements can all be interchanged. For example, the signaling interaction between one UE and another UE is not mentioned above. However, the content protected by the above process includes one UE sending UE capability-related request signaling to another UE, and also supports one UE reporting / sending UE-related capabilities to another UE.

[0194] In the embodiments of this disclosure, the aforementioned capability-related signaling flow is not limited to perception-related UE capabilities; in one example, it could be communication-related capabilities. In another example, the aforementioned capability-related signaling transmission flow could also be for BS-related capabilities, or capabilities of other devices.

[0195] In this embodiment of the disclosure, for the UE, the perception-related capabilities include at least one of the following:

[0196] The UE reports whether multiple RSs (to perform channel estimation and use the estimation results) can be used for sensing.

[0197] Non-uniform: Whether a UE supports using non-uniformly quantized (one or more) RS signals for sensing; BS sends to SF whether the UE supports using non-uniformly quantized signals for sensing.

[0198] The UE reports whether a portion of the RS (for channel estimation and the estimation results) can be used for sensing.

[0199] The UE reports whether at least a portion of the RS (for channel estimation and the estimation results) can be used for sensing in stages.

[0200] The perception-related capability can be whether the UE supports using communication reference signals for perception services.

[0201] Can the UE use information from a corresponding portion of the bandwidth of a communication reference signal for sensing?

[0202] Can the UE perform sensing measurements in stages?

[0203] In one embodiment, the UE can perform sensing measurements in steps, including, for example, the following steps:

[0204] Step 1: Use PRS for channel estimation;

[0205] Step 2: Perform channel estimation using DMRS;

[0206] Step 3: Using the estimated pilot resource location channel, estimate (interpolation or other MMSE algorithm) the channel of the virtual RS location;

[0207] Step 4: Use all this channel information to perform sensing calculations, such as obtaining the RD map.

[0208] Advantages: When performing channel estimation for RS1 and RS2 at different resource locations, the RS sequences and transmission powers may be different. By adopting a step-by-step approach to perform channel estimation for different RSs separately, more accurate channel estimation results can be obtained.

[0209] In this embodiment of the disclosure, different nodes may also receive (interact) indication information (i.e., the second indication information in the above embodiment), which is used to indicate whether generalized channel estimation is used for sensing measurement reporting and / or sensing calculation.

[0210] In this embodiment of the disclosure, when a sensing task is issued, the SF notifies the sensing receiver and / or transmitter (BS, UE, SF) whether a generalized channel estimation method can be used for sensing measurement reporting and / or sensing calculation.

[0211] When using a virtual RS to obtain channel information through generalized channel estimation as a sensing measurement result, the virtual measurement result can be reported to the sensing calculation node (which can be UE, BS, SF, etc.).

[0212] For example, acquiring channel information using a virtual RS can be considered a sensing and calculation step. When the sensing receiver only reports the sensing measurement results corresponding to the real RS, the sensing and calculation node can use the acquired real measurement results combined with the information corresponding to the virtual RS to perform sensing and calculation. In one embodiment, the real RS information involved in acquiring the virtual RS is reported, such as DMRS in the example above. In one embodiment, for the measurement reporting of the virtual RS, the (UE and / or BS) device can report the virtual measurement results of the virtual RS.

[0213] In summary, the communication sensing method provided in this disclosure, while optimizing or minimizing the impact on communication, increases the configuration of sensing reference signals as little as possible. Utilizing channel estimation and other schemes, it reports as much useful information as possible during the reporting process, thereby enabling efficient sensing services. Specifically, it includes sensing (real and virtual) measurement (reporting) requests, the configuration of communication and sensing reference signals, and the transmission of configuration information, considering the configuration of sensing reference signals in addition to communication reference signals.

[0214] The above description is merely a preferred embodiment of this disclosure and is not intended to limit the scope of this disclosure. Various modifications and variations can be made to this disclosure by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the principles of this disclosure should be included within the protection scope of this disclosure.

Claims

1. A communication sensing method, comprising: The first node receives first information from the second node, wherein the first information is used to determine reference signal related information for participating in the sensing service; The first node performs sensing services based on the first information.

2. The method of claim 1, wherein, The first information includes at least one of the following: It senses and reports relevant request information and configuration parameter information.

3. The method of claim 2, wherein, The perception reporting related request information includes: first indication information, which is used to indicate a reference signal for the perception service.

4. The method of claim 2, wherein, The sensing and reporting related request information includes at least one of the following: information related to the time / frequency / spatial resources to be reported; channel-related information related to the sensing reference signal to be reported; measurement information of the sensing reference signal; measurement information of additional communication reference signals and / or positioning reference signals; estimation information of the sensing reference signal; and estimation information of additional communication reference signals and / or positioning reference signals.

5. The method of claim 1, wherein, Also includes: The perception reporting request information is used to request the first node to report measurement information or estimation information corresponding to at least a portion of the resources of the reference signal.

6. The method according to claim 1, wherein, Also includes: The first node sends perception reporting information to the second node.

7. The method of claim 6, wherein, The sensed and reported information includes at least one of the following: The first node's timestamp information; time difference information; angle or angle difference information; reference signal or channel-related attribute parameters.

8. The method of claim 7, wherein, The time difference information includes at least one of the following: The time difference between the signal received and the signal sent by the first node; The time difference between the two transmissions by the first node; The time difference between the two receptions of the first node; The time difference between the signal sent and the signal received by the first node.

9. The method of claim 7, wherein, The angle or angle difference information includes at least one of the following: The first node performs sensing measurements to obtain the angle or angle difference; The angle or angle difference configured for the second node.

10. The method of claim 7, wherein, The channel-related attribute parameters include at least one of the following: Antenna beam information; quasi-co-location relationship of reference signal; antenna port relationship; time domain and / or frequency domain resource information of reference signal; time window; frequency domain bandwidth occupied by reference signal; antenna relative position information; sensing / communication area of ​​reference signal.

11. The method of claim 6, wherein, The sensed and reported information includes at least one of the following: Measurement information of the sensing reference signal; measurement information of additional communication reference signals and / or positioning reference signals; estimation information of the sensing reference signal; estimation information of additional communication reference signals and / or positioning reference signals.

12. The method of claim 2, wherein, The configuration parameter information includes at least one of the following types: Configuration parameters for communication; configuration parameters for positioning; configuration parameters for sensing.

13. The method of claim 2, wherein, The first node receives configuration parameter information from the second node, including: The first node directly receives the configuration parameter information from the second node; Alternatively, the first node may receive the configuration parameter information from the second node through the third node.

14. The method of claim 1, wherein, Also includes: The first node sends sensing-related capabilities to the second node. These capabilities are used to indicate whether the first node supports sensing services using communication reference signals, or whether the first node can use information on a corresponding portion of the bandwidth of a communication reference signal to perform sensing services.

15. The method of claim 14, wherein, Also includes: The first node receives a perception-related capability reporting request from the second node.

16. The method of claim 14, wherein, The first node sends perception-related capabilities to the second node, including: The first node directly sends the perception-related capabilities to the second node; Alternatively, the first node may send the perception-related capabilities to the second node through the third node.

17. The method of claim 1, wherein, Also includes: The first node receives a second indication information from the second node, the second indication information being used to indicate whether the first node uses estimated information for sensing measurement reporting and / or sensing calculation.

18. The method of claim 1, wherein, Also includes: The first node receives virtual reference signal configuration information from the second node. The virtual reference signal or virtual channel is a resource location where no reference signal is transmitted.

19. The method of claim 18, wherein, The virtual reference signal configuration information includes the resource location of the virtual reference signal and the information of the real reference signal that was reported to participate in obtaining the virtual reference signal.

20. The method according to claim 19, wherein, The channel parameters of the resource location of the virtual reference signal are obtained by channel estimation based on the sensed reference signal and the real reference signal of the reported participant.

21. The method according to claim 1, wherein, The reference signal participating in the sensing service or the channel corresponding to the reference signal has the same attribute parameters; Alternatively, the difference in attribute parameters of the reference signal participating in the sensing service or the channel corresponding to the reference signal satisfies a preset difference range.

22. A communication sensing method, comprising: The second node sends first information to the first node so that the first node can perform sensing services based on the first information, wherein the first information is used to determine reference signal related information for participating in the sensing services.

23. The method of claim 22, wherein, The first information includes at least one of the following: It senses and reports relevant request information and configuration parameter information.

24. The method of claim 22, wherein, Also includes: The second node receives perception reporting information from the first node.

25. The method of claim 22, wherein, Also includes: The second node receives sensing-related capabilities from the first node. These capabilities are used to indicate whether the first node supports sensing services using a communication reference signal, or whether the first node can use information on a corresponding portion of the bandwidth of a communication reference signal to perform sensing services.

26. The method of claim 25, wherein, Also includes: The second node sends a request to the first node to report its perception-related capabilities.

27. The method of claim 22, wherein, Also includes: The second node sends a second indication message to the first node, the second indication message being used to indicate whether the first node uses estimated information for sensing measurement reporting and / or sensing calculation.

28. The method of claim 22, wherein, Also includes: The second node sends virtual reference signal configuration information to the first node. The virtual reference signal or virtual channel is a resource location where no reference signal is transmitted.

29. A network device comprising a receiver, a transmitter and a processor, the network device being configured to perform the steps of the method of any one of claims 1 to 21, or to implement the steps of the method of any one of claims 22 to 28, by at least one of the receiver, the transmitter and the processor.

30. A computer readable storage medium having stored therein a computer program, wherein, The computer program, which when executed by a processor, implements the steps of the method of any one of claims 1 to 21, or the steps of the method of any one of claims 22 to 28.

31. An electronic device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, the processor when executing the computer program implements the steps of the method of any one of claims 1 to 21, or the steps of the method of any one of claims 22 to 28.

32. A computer program product comprising a computer program, which when executed by a processor, implements the steps of the method of any one of claims 1 to 21, or the steps of the method of any one of claims 22 to 28.

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