Precoding information determination methods and apparatuses, and related device

Abstract

The present application belongs to the technical field of communications. Disclosed are precoding information determination methods and apparatuses, and a related device. A precoding information determination method of the embodiments of the present application comprises: a terminal receiving first configuration information from a network side device, the first configuration information being used for configuring M pieces of first information, the first information being used for indicating at least one of the following: angle information, delay information, and Doppler shift information, and M being a positive integer; and measuring N reference signal resources on the basis of the first configuration information so as to determine first precoding information, N being a positive integer.

Description

Method, apparatus and related device for determining precoding information

[0001] The present application claims priority to the Chinese patent application No. 202411236709.1, filed on September 4, 2024, and entitled “Method, apparatus and related device for determining precoding information”, the content of which is incorporated herein by reference in its entirety. TECHNICAL FIELD

[0002] The present application belongs to the field of communication technology, and specifically relates to a method, apparatus and related device for determining precoding information. BACKGROUND

[0003] Currently, in a communication and perception integrated system, a terminal can first measure a plurality of reference signal resources configured by a network side device to determine precoding information, and then report the precoding information to the network side device, so that the network side device can determine a precoding matrix based on the precoding information, and perform precoding based on the precoding matrix when performing perception subsequently, thereby improving the perception performance.

[0004] However, since the terminal determines the precoding information based on the principle of optimal communication performance, the precoding information determined by the terminal may not be suitable for perception, and therefore the precoding matrix determined by the network side device after the terminal reports the precoding information may not be suitable for perception, thereby affecting the perception performance. SUMMARY

[0005] Embodiments of the present application provide a method, apparatus and related device for determining precoding information, which can solve the problem of low perception performance.

[0006] In a first aspect, a method for determining precoding information is provided, which is performed by a terminal. The method includes that the terminal can receive first configuration information from a network side device, the first configuration information being used for configuring M first information, the first information being used for indicating at least one of the following: angle information, time delay information, and Doppler shift information, M being a positive integer; and measuring N reference signal resources based on the first configuration information to determine first precoding information, N being a positive integer.

[0007] In some embodiments of the present application, each reference signal resource is associated with at least one of the M first information.

[0008] In some embodiments of the present application, the N reference signal resources belong to at least two resource sets, and one resource set is associated with at least one of the M first information.

[0009] In some embodiments of the present application, the method for determining precoding information further comprises: receiving, by the terminal, at least one second configuration information from the network side device, the second configuration information being used for configuring the terminal to report the precoding information; and indicating, by the terminal, at least part of the first precoding information to the network side device according to the at least one second configuration information.

[0010] In some embodiments of the present application, the N reference signal resources are associated with at least one second configuration information, and one second configuration information is associated with at least one of the M first information.

[0011] In some embodiments of the present application, the method for determining precoding information further comprises: receiving, by the terminal, at least one second configuration information from the network side device, the second configuration information being used for configuring the terminal to report the precoding information; and indicating, by the terminal, at least part of the first precoding information to the network side device according to the at least one second configuration information.

[0012] In some embodiments of the present application, each reference signal resource is associated with at least one of the M first information.

[0013] In some embodiments of the present application, the N reference signal resources belong to at least two resource sets, and one resource set is associated with at least one of the M first information.

[0014] In some embodiments of the present application, the method for determining precoding information further comprises: receiving, by the terminal, at least one second configuration information from the network side device, the second configuration information being used for configuring the terminal to report the precoding information; and indicating, by the terminal, at least part of the first precoding information to the network side device according to the at least one second configuration information.

[0015] In some embodiments of the present application, the N reference signal resources are associated with at least one second configuration information, and one second configuration information is associated with at least one of the M first information.

[0016] In some embodiments of the present application, the method for determining precoding information further comprises: receiving, by the terminal, at least one second configuration information from the network side device, the second configuration information being used for configuring the terminal to report the precoding information; and indicating, by the terminal, at least part of the first precoding information to the network side device according to the at least one second configuration information.

[0017] In some embodiments of the present application, each reference signal resource is associated with at least one of the M first information.

[0018] In some embodiments of the present application, the N reference signal resources belong to at least two resource sets, and one resource set is associated with at least one of the M first information.

[0019] In some embodiments of the present application, the receiving module is further configured to receive at least one second configuration information from the network side device, the second configuration information being used for configuring the terminal to report the precoding information. The precoding information determination apparatus provided in the embodiments of the present application can further include a sending module. The sending module is configured to indicate at least part of the first precoding information to the network side device according to the at least one second configuration information received by the receiving module.

[0020] In some embodiments of the present application, the N reference signal resources are associated with at least one second configuration information, and one second configuration information is associated with at least one of the M first information.

[0021] In some embodiments of the present application, the receiving module is further configured to receive at least one second configuration information from the network side device, the second configuration information being used for configuring the terminal to report the precoding information. The precoding information determination apparatus provided in the embodiments of the present application can further include a sending module. The sending module is configured to indicate at least part of the first precoding information to the network side device according to the at least one second configuration information received by the receiving module.

[0022] In some embodiments of the present application, each reference signal resource is associated with at least one of the M first information.

[0023] In some embodiments of the present application, the N reference signal resources belong to at least two resource sets, and one resource set is associated with at least one of the M first information.

[0024] In some embodiments of the present application, the receiving module is further configured to receive at least one second configuration information from the network side device, the second configuration information being used for configuring the terminal to report the precoding information. The precoding information determination apparatus provided in the embodiments of the present application can further include a sending module. The sending module is configured to indicate at least part of the first precoding information to the network side device according to the at least one second configuration information received by the receiving module.

[0025] In some embodiments of the present application, the N reference signal resources are associated with at least one second configuration information, and one second configuration information is associated with at least one of the M first information.

[0026] In a fifth aspect, a pre-coding information determination apparatus is provided, which is configured to perform the steps of the method according to the first aspect, or implement the steps of the method according to the second aspect.

[0027] In a sixth aspect, a terminal is provided, which comprises a processor and a memory, the memory storing programs or instructions executable on the processor, the programs or instructions being executed by the processor to implement the steps of the method according to the first aspect.

[0028] In a seventh aspect, a terminal is provided, which comprises a processor and a communication interface, wherein the communication interface is configured to receive first configuration information from a network-side device, the first configuration information being used to configure M first information, the first information being used to indicate at least one of the following: angle information, time delay information, Doppler shift information, M being a positive integer; and the processor is configured to measure N reference signal resources based on the first configuration information to determine first pre-coding information, N being a positive integer.

[0029] In an eighth aspect, a network-side device is provided, which comprises a processor and a memory, the memory storing programs or instructions executable on the processor, the programs or instructions being executed by the processor to implement the steps of the method according to the first aspect.

[0030] In a ninth aspect, a network-side device is provided, which comprises a processor and a communication interface, wherein the communication interface is configured to send first configuration information to a terminal, the first configuration information being used to configure M first information, the first information being used to indicate at least one of the following: angle information, time delay information, Doppler shift information, and the first configuration information being further used to measure N reference signal resources to determine first pre-coding information; M and N are both positive integers.

[0031] In a tenth aspect, a readable storage medium is provided, which stores programs or instructions, the programs or instructions being executed by a processor to implement the steps of the method according to the first aspect, or implement the steps of the method according to the second aspect.

[0032] In an eleventh aspect, a wireless communication system is provided, which comprises a terminal and a network-side device, the terminal being configured to perform the steps of the method according to the first aspect, and the network-side device being configured to perform the steps of the method according to the second aspect.

[0033] In a twelfth aspect, a chip is provided, which comprises a processor and a communication interface, the communication interface being coupled to the processor, the processor being configured to run programs or instructions to implement the steps of the method according to the first aspect, or implement the steps of the method according to the second aspect.

[0034] In a thirteenth aspect, a computer program / program product is provided, which is stored in a storage medium, and which is executed by at least one processor to implement the steps of the method according to the first aspect, or to implement the steps of the method according to the second aspect.

[0035] In the embodiments of the present application, the terminal can receive first configuration information for configuring M first information from the network side device, the first information being used for indicating at least one of angle information, time delay information and Doppler shift information, M being a positive integer, and perform measurement on N reference signal resources based on the first configuration information to determine first precoding information. Since the terminal can receive the first configuration information from the network side device to learn the M first information through the first configuration information, and the first information is used for indicating at least one of angle information, time delay information and Doppler shift information, i.e., the first information is related to sensing, and the terminal can learn the M first information related to sensing through the first configuration information, therefore, the terminal performs measurement on the N reference signal resources based on the first configuration information, i.e., the terminal performs measurement on the N reference signal resources based on the M first information related to sensing, and the first precoding information suitable for sensing can be obtained, so that after the terminal reports the first precoding information, the network side device can accurately determine a precoding matrix suitable for sensing, and perform precoding based on the precoding matrix suitable for sensing when sensing subsequently, and thus the sensing performance can be improved.

[0036] In the embodiments of the present application, the network side device can send first configuration information to the terminal, the first configuration information being used for configuring M first information, the first information being used for indicating at least one of angle information, time delay information and Doppler shift information, and the first configuration information being further used for performing measurement on N reference signal resources to determine first precoding information. M and N are both positive integers. Since the network side device can send the first configuration information to the terminal to indicate the M first information to the terminal through the first configuration information, and the first information is used for indicating at least one of angle information, time delay information and Doppler shift information, i.e., the first information is related to sensing, and the network side device can indicate the M first information related to sensing to the terminal through the first configuration information, therefore, the terminal performs measurement on the N reference signal resources based on the first configuration information, i.e., the terminal performs measurement on the N reference signal resources based on the M first information related to sensing, and the first precoding information suitable for sensing can be obtained, so that after the terminal reports the first precoding information, the network side device can accurately determine a precoding matrix suitable for sensing, and perform precoding based on the precoding matrix suitable for sensing when sensing subsequently, and thus the sensing performance can be improved. BRIEF DESCRIPTION OF DRAWINGS

[0037] FIG. 1 is a schematic diagram of a sensing link of communication and sensing integration in the related art;

[0038] FIG. 2 is a block diagram of a wireless communication system according to an embodiment of the present application;

[0039] FIG. 3 is a flow diagram of a method for determining precoding information according to an embodiment of the present application;

[0040] FIG. 4A is a diagram of first information in a method for determining precoding information according to an embodiment of the present application;

[0041] FIG. 4B is a diagram of first information in a method for determining precoding information according to an embodiment of the present application;

[0042] FIG. 5 is a flow diagram of a method for determining precoding information according to an embodiment of the present application;

[0043] FIG. 6 is a flow diagram of a method for determining precoding information according to an embodiment of the present application;

[0044] FIG. 7 is a flow diagram of a method for determining precoding information according to an embodiment of the present application;

[0045] FIG. 8 is a flow diagram of a method for determining precoding information according to an embodiment of the present application;

[0046] FIG. 9 is a structural diagram of a device for determining precoding information according to an embodiment of the present application;

[0047] FIG. 10 is a structural diagram of a device for determining precoding information according to an embodiment of the present application;

[0048] FIG. 11 is a hardware structural diagram of a communication device according to an embodiment of the present application;

[0049] FIG. 12 is a hardware structural diagram of a terminal according to an embodiment of the present application;

[0050] FIG. 13 is a hardware structural diagram of a network-side device according to an embodiment of the present application;

[0051] FIG. 14 is a hardware structural diagram of a network-side device according to an embodiment of the present application. DETAILED DESCRIPTION

[0052] The technical solutions in the embodiments of the present application will be clearly described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are some but not all of the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by a person of ordinary skill in the art belong to the scope of protection of the present application.

[0053] The following will explain the professional terms involved in the embodiments of the present application.

[0054] 1. Communication and perception integration

[0055] Future mobile communication systems (e.g., Beyond Fifth-Generation (B5G) systems or 6th Generation (6G) systems) will have not only communication capabilities but also perception capabilities. With perception capabilities, one or more devices with perception capabilities can perceive the position, distance, speed, etc. of a target object through the transmission and reception of wireless signals, or detect, track, identify, image, etc. a target object, event, or environment, etc. In the future, with the deployment of small base stations with high-frequency-band and large-bandwidth capabilities such as millimeter waves and terahertz in 6G networks, the resolution of perception will be significantly improved compared to centimeter waves, thereby enabling 6G networks to provide more refined perception services. Typical perception functions and application scenarios are shown in Table 1:

[0056] Table 1

[0057] Communication and perception integration means that communication and perception functions are integrated through spectrum sharing and hardware sharing in the same system. While the system is transmitting information, it can perceive the position, distance, speed, etc. and detect, track, identify a target device or event. The communication system and the perception system complement each other to improve overall performance and provide better service experience.

[0058] The integration of communication and radar is a typical application of communication and perception integration (communication and perception fusion). In the past, radar systems and communication systems were strictly separated due to different research objects and focuses. In most scenarios, the two systems are studied independently. In fact, radar and communication systems are also typical ways of information transmission, acquisition, processing, and exchange. There are many similarities in working principles, system architectures, and frequency bands. The design of communication and radar integration has great feasibility, mainly in the following aspects: first, both communication systems and perception systems are based on electromagnetic wave theory and use electromagnetic wave transmission and reception to acquire and transmit information; second, both communication systems and perception systems have structures such as antennas, transmitters, receivers, signal processors, etc., and have a lot of overlap in hardware resources; with the development of technology, there are more and more overlaps in working frequency bands; in addition, there are similarities in key technologies such as signal modulation and reception detection, waveform design, etc. The integration of communication and radar systems can bring many advantages, such as cost savings, size reduction, power consumption reduction, spectrum efficiency improvement, mutual interference reduction, etc., thereby improving the overall performance of the system.

[0059] According to the different perception signal sending nodes and receiving nodes, the following six kinds of perception links are divided, as shown in FIG. 1. It is worth noting that each kind of perception link in FIG. 1 takes one sending node and one receiving node as an example. In actual systems, different perception links can be selected according to different perception requirements. The sending node and the receiving node of each kind of perception link can be one or more, and the actual perception system can include multiple different perception links. The perception objects in FIG. 1 take people and vehicles as examples. The perception objects of the actual system will be more abundant.

[0060] 1) Network side device (such as base station) self-initiated self-reception perception. In this way, the base station sends the perception signal and obtains the perception result by receiving the echo of the perception signal.

[0061] 2) Inter-base station air interface perception. At this time, base station 2 receives the perception signal sent by base station 1 and obtains the perception result.

[0062] 3) Uplink air interface perception. At this time, the base station receives the perception signal sent by the terminal and obtains the perception result.

[0063] 4) Downlink air interface perception. At this time, the terminal receives the perception signal sent by the base station and obtains the perception result.

[0064] 5) Terminal self-initiated self-reception perception. At this time, the terminal sends the perception signal and obtains the perception result by receiving the echo of the perception signal.

[0065] 6) Inter-terminal sidelink perception. For example, terminal 2 receives the perception signal sent by terminal 1 and obtains the perception result.

[0066] 2, Multi-Input Multi-Output (MIMO) radar

[0067] MIMO radar utilizes Waveform Diversity and Virtual Array characteristics, which can obtain higher detection / estimation resolution, higher maximum identifiable target number, and better clutter suppression capability compared with Phase Array.

[0068] The principle of the MIMO radar virtual array is as follows. Consider that the total number of the MIMO radar transmitting array antennas is X, and the number of receiving antennas is Y. It is assumed that the transmitting signals of each transmitting antenna are orthogonal to each other, and thus X signals can be distinguished by each receiving antenna. Since the phase of the response signal is determined by the positions of the transmitting antenna and the receiving antenna, X*Y response signals with different phases can be obtained, which are completely equivalent to the response signals obtained by an array with X*Y antennas. Therefore, by reasonably setting the positions of the transmitting array and / or the receiving array, an array containing X*Y virtual antennas that do not overlap with each other can be constructed by only X+Y physical antennas. Since the virtual array can often form a larger array aperture, better angle resolution can be obtained; X and Y are positive integers.

[0069] Further, by the design of the pre-coding, the transmitting energy can be focused in a given angle interval, thereby improving the signal-to-noise ratio (SNR) of the response signal and further improving the estimation performance of the perception. Specifically, by designing the pre-coding matrix C, Z beams are formed for transmitting Z orthogonal signals, so that the beam energy in the given angle region is uniform, and the energy outside the given angle region is minimized; Z is a positive integer.

[0070] 3. Channel State Information (CSI) in New Radio (NR)

[0071] In the 5th Generation (5G) communication system, the introduction of massive MIMO technology can greatly improve the spectral efficiency. However, the base station needs to know the downlink channel information, and then the appropriate precoding can be loaded on the data channel. For frequency division duplex (FDD), there is no complete reciprocity between the uplink and downlink channels, and the base station cannot directly obtain the downlink channel information, and needs the terminal to feed back the CSI, including the precoding matrix. Therefore, 5G designs multiple codebooks for the feedback of the precoding matrix.

[0072] Among them, for the feedback configuration:

[0073] The network side device associates a reference signal resource configuration (CSI-ResourceConfig) for channel measurement and a reference signal resource configuration for interference measurement associated with a channel state information interference measurement (CSI-IM) resource or a reference signal resource configuration for interference measurement associated with a non-zero power channel state information reference signal (NZP-CSI RS) resource for each CSI reporting configuration (CSI-ReportConfig). The terminal obtains corresponding channel information by measuring the associated reference resources in these resource configurations, further obtains corresponding CSI information according to the codebook configuration information and reporting content associated with the CSI reporting configuration, and feeds back based on the uplink channel.

[0074] The reference signal resource configuration (CSI-ResourceConfig) for channel measurement is associated with at least one non-zero power channel state information reference signal resource set (NZP-CSI-RS-ResourceSet). Only one CSI-RS resource set is configured for periodic and semi-persistent reporting, and multiple CSI-RS resource sets can be configured for aperiodic reporting, but the network side device indicates which CSI-RS resource set is used for reporting. The CSI-RS resource set contains at least one non-zero power CSI-RS resource (NZP-CSI-RS-Resource).

[0075] For codebook feedback:

[0076] The R15 Type-I codebook can be expressed as W=W1W2, where W1 is a wideband report, indicating the selection of a single or multiple beams, and W2 is a subband report, used to select beams and adjust the phase between polarizations. where b is a 2D Discrete Fourier Transform (2D-DFT) vector, and W2 is a subband report used to select beams and adjust the phase between polarizations.

[0077] The R15 Type-II codebook uses a linear combination of multiple beams to represent a precoding vector, thereby improving feedback accuracy. It can be expressed as W=W1W2, where W1 represents the selection of multiple spatial beams in the wideband, and W2 is a subband report representing the linear combination coefficients of multiple beams in each subband.

[0078] R16 The Type-II codebook further exploits the correlation in frequency domain to reduce the overhead. It can be expressed as W = W1W2W f where W1represents the selected multiple spatial beams, W f represents the frequency domain selected frequency domain basis, which can be represented by a DFT vector, and W2represents the linear combination coefficients of different spatial beam-frequency basis pairs.

[0079] R17 The Type-II codebook is a port selection codebook, which is in the form of W = W1W2W f where W1represents the port selection matrix, which is used to select the ports, W f represents the frequency domain selected frequency domain basis, which can be represented by a DFT vector, and W2represents the linear combination coefficients of different port selection vector-frequency basis pairs.

[0080] In addition to the above-mentioned precoding information, the reporting content of the CSI also includes a rank indicator (RI) and a channel quality indicator (CQI). It should be noted that the above-mentioned precoding information can also be referred to as precoding matrix information, precoding matrix indication, precoding indication, etc.

[0081] 4. Other terms

[0082] The terms "first", "second", and the like in this application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the terms used in this way can be interchanged under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than those illustrated or described herein, and the objects distinguished by "first", "second" are usually a class, not limited to the number of objects, for example, the first object can be one or more. In addition, "or" in this application means at least one of the connected objects. For example, the protection scope of "A or B" at least covers three schemes, namely, scheme one: including A and not including B; scheme two: including B and not including A; scheme three: including A and B. In addition, the terms "A and / or B", "at least one of A and B", "at least one of A or B" also at least cover the above three schemes, respectively. The character " / " generally represents that the objects before and after are in an "or" relationship.

[0083] The term "indication" in this application can be a direct indication (or explicit indication) or an indirect indication (or implicit indication). The direct indication can be understood as that the sender explicitly informs the receiver of specific information, operations to be performed or requested results, etc. in the sent indication. The indirect indication can be understood as that the receiver determines the corresponding information according to the indication sent by the sender, or judges and determines the operations to be performed or the requested results according to the judgment result.

[0084] It is worth noting that the technology described in the embodiments of the present application is not limited to the Long Term Evolution (LTE) / LTE-Advanced (LTE-A) system, but can also be used in other wireless communication systems, such as Code Division Multiple Access (CDMA), Time Division Multiple Access (TDMA), Frequency Division Multiple Access (FDMA), Orthogonal Frequency Division Multiple Access (OFDMA), Single-carrier Frequency-Division Multiple Access (SC-FDMA) or other systems. The terms "system" and "network" in the embodiments of the present application are often used interchangeably, and the described technology can be used in the above-mentioned systems and radio technologies, and also in other systems and radio technologies. The following description describes a New Radio (NR) system for example purposes, and NR terminology is used in most of the following description, but these technologies can also be applied to systems other than the NR system, such as a 6th Generation (6G) communication system. th

[0085] ​FIG. 2 shows a block diagram of a wireless communication system to which embodiments of the present application can be applied. The wireless communication system includes a terminal 11 and a network-side device 12. The terminal 11 can be a terminal-side device such as a mobile phone, a Tablet Personal Computer, a Laptop Computer, a notebook computer, a Personal Digital Assistant (PDA), a palmtop computer, a netbook, an Ultra-mobile Personal Computer (UMPC), a Mobile Internet Device (MID), an Augmented Reality (AR) device, a Virtual Reality (VR) device, a robot, a wearable device, a flight vehicle, a Vehicle User Equipment (VUE), a shipboard device, a Pedestrian User Equipment (PUE), a smart home (a home device with a wireless communication function such as a refrigerator, a television, a washing machine, or furniture), a game console, a Personal Computer (PC), a kiosk, or a self-service machine. The wearable device includes a smart watch, a smart bracelet, a smart earphone, smart glasses, smart jewelry (a smart bracelet, a smart necklace, a smart ring, a smart necklace, a smart anklet, a smart necklace, etc.), a smart wristband, smart clothes, etc. The vehicle-mounted device can also be referred to as a vehicle-mounted terminal, a vehicle-mounted controller, a vehicle-mounted module, a vehicle-mounted component, a vehicle-mounted chip, or a vehicle-mounted unit, etc. It should be noted that the specific type of the terminal 11 is not limited in the embodiments of the present application. The network-side device 12 can include an access network device or a core network device. The access network device can also be referred to as a Radio Access Network (RAN) device, a radio access network function, or a radio access network unit. The access network device can include a base station, a Wireless Local Area Network (WLAN) Access Point (AP), or a Wireless Fidelity (WiFi) node, etc.The base station can be referred to as a Node B (NB), an evolved Node B (eNB), a next generation Node B (gNB), a New Radio Node B (NR Node B), an access point, a relay station (RBS), a serving base station (SBS), a base transceiver station (BTS), a radio base station, a radio transceiver, a basic service set (BSS), an extended service set (ESS), a home Node B (HNB), a home evolved Node B, a transmit / receive point (TRP), or some other suitable terminology in the art, and is not limited to a particular technical terminology, provided that the same technical effect is achieved. It should be noted that in the embodiments of the present application, only the base station in the NR system is taken as an example for introduction, and the specific type of the base station is not limited.

[0086] The core network device can also be referred to as a core network node, a core network function, or a core network network element, etc., which includes but is not limited to at least one of the following: a mobility management entity (MME), an access and mobility management function (AMF), a session management function (SMF), a user plane function (UPF), a policy control function (PCF), a policy and charging rules function (PCRF), an edge application server discovery function (EASDF), a unified data management (UDM), a unified data repository (UDR), a home subscriber server (HSS), a centralized network configuration (CNC), a network repository function (NRF), a network exposure function (NEF), a local NEF (L-NEF), a binding support function (BSF), an application function (AF), a location management function (LMF), a gateway mobile location center (GMLC), a network data analytics function (NWDAF), etc. It should be noted that only the core network device in the NR system is taken as an example for introduction in the embodiments of the present application, and the specific type of the core network device is not limited. If the name of the core network device mentioned in the embodiments of the present application changes in the subsequent protocol version (for example, 6G), it is also within the protection scope of the present application.

[0087] Optionally, the core network device can be implemented by one or more function modules in one device, or can be implemented by multiple devices together, and the embodiments of the present application do not make a specific limitation hereon. It can be understood that the above function modules can be network elements in a hardware device, can be software function modules running on a dedicated hardware, or can be virtualized function modules instantiated on a platform (for example, a cloud platform).

[0088] The precoding information determination method, apparatus and related device provided by the embodiments of the present application will be described in detail below in combination with the accompanying drawings and some embodiments and application scenarios thereof.

[0089] For a communication and sensing integrated system, the sensing performance can be improved by reasonably designing a sensing precoding matrix (i.e., a precoding matrix used for sensing) to focus the beam within a certain angular range.

[0090] Currently, in the communication and sensing integrated system, the network side device determines the sensing precoding matrix in two ways.

[0091] First, in the case that the network side device has prior information about the angular range of sensing, the network side device can determine the sensing precoding matrix based on the prior information. However, since the prior information can not be accurate enough (for example, the range is too large), it is not conducive to the focusing of the beam capability, and thus the sensing precoding matrix determined by the network side device can not be accurate, thereby affecting the sensing performance.

[0092] Second, the terminal can first measure a plurality of reference signal resources configured by the network side device to determine the precoding information, and then report the precoding information to the network side device, so that the network side device can determine the precoding matrix based on the precoding information. However, since the terminal determines the precoding information based on the principle of optimal communication performance, the precoding information determined by the terminal can not be suitable for sensing, and thus after the terminal reports the precoding information, the precoding matrix determined by the network side device can also not be suitable for sensing, thereby affecting the sensing performance.

[0093] However, in the embodiment of the present application, the terminal can receive the first configuration information for configuring M first information from the network side device, the first information is used for indicating at least one of the angle information, the time delay information and the Doppler shift information, M is a positive integer, and the N reference signal resources are measured based on the first configuration information to determine the first precoding information. Since the terminal can receive the first configuration information from the network side device to know the M first information through the first configuration information, and the first information is used for indicating at least one of the angle information, the time delay information and the Doppler shift information, i.e. the first information is related to sensing, i.e. the terminal can know the M first information related to sensing through the first configuration information, therefore, the terminal measures the N reference signal resources based on the first configuration information, i.e. the terminal measures the N reference signal resources based on the M first information related to sensing, and the first precoding information suitable for sensing can be obtained, so that after the terminal reports the first precoding information, the network side device can accurately determine the precoding matrix suitable for sensing, and in subsequent sensing, precoding is performed based on the precoding matrix suitable for sensing, so that the sensing performance can be improved.

[0094] The execution subject of the precoding information determination method provided by the embodiment of the present application can be a precoding information determination apparatus, or a terminal, or a functional module or entity in the terminal. In the embodiment of the present application, the precoding information determination method is taken as an example to illustrate the precoding information determination method provided by the embodiment of the present application.

[0095] FIG. 3 shows a flowchart of a precoding information determination method provided by an embodiment of the present application. As shown in FIG. 3, the precoding information determination method provided by the embodiment of the present application can include the following steps 101 and 102.

[0096] Step 101, the terminal receives the first configuration information from the network side device.

[0097] In some embodiments of the present application, the network side device can be an access network device (for example, a base station) or a core network device. The core network device can include a sensing function (Sensing Function) network element.

[0098] The sensing function (Sensing Function) network element, also known as a sensing network element or a sensing network function, can be on the access network side or the core network side, and is a network node responsible for at least one of sensing request processing, sensing resource scheduling, sensing information interaction, sensing data processing, etc. in the core network and / or the access network. It can be based on the upgrade of AMF or LMF in the 5G network, or other network nodes or newly defined network nodes. Specifically, the function characteristics of the sensing function network element can include at least one of the following:

[0099] interacting with the wireless signal transmitting device and / or the wireless signal measuring device (including the target terminal or a serving base station of the target terminal or a base station associated with a target area) to obtain target information, wherein the target information includes a sensing processing request, a sensing capability, sensing assistance data, a sensing measurement type, sensing resource configuration information, and the like, to obtain a value of a target sensing result or a sensing measurement (an uplink measurement or a downlink measurement) sent by the wireless signal measuring device; the wireless signal can also be referred to as a sensing signal.

[0100] The sensing method used is determined according to the type of the sensing service, information of a sensing service consumer, required sensing Quality of Service (QoS) requirement information, a sensing capability of the wireless signal transmitting device, a sensing capability of the wireless signal measuring device, and the like, and the sensing method can include: base station A to base station B, or base station to terminal, or base station A self to self, or terminal to base station, or terminal self to self, or terminal A to terminal B, and the like.

[0101] The sensing device serving the sensing service is determined according to the type of the sensing service, information of a sensing service consumer, required sensing QoS requirement information, a sensing capability of the wireless signal transmitting device, a sensing capability of the wireless signal measuring device, and the like, and the sensing device includes the wireless signal transmitting device and / or the wireless signal measuring device.

[0102] Overall coordination and scheduling of resources required for the sensing service are managed, such as corresponding configuration of sensing resources of the base station and / or the terminal.

[0103] Data processing is performed on the value of the sensing measurement, or a sensing result is obtained by calculation. Further, the sensing result is verified, and sensing accuracy is estimated.

[0104] In embodiments of the present application, the first configuration information is used to configure M first information, and each of the M first information is used to indicate at least one of the following: angle information, time delay information, and Doppler shift information, and M is a positive integer.

[0105] In some embodiments of the present application, the first information can be referred to as sensing area information, or sensing range information, or measurement range information, or measurement area information, and the like. Of course, the first information can also be referred to as other information, which is not limited in embodiments of the present application.

[0106] In some embodiments of the present application, the angle information can be specifically an angle value.

[0107] In some embodiments of the present application, the angle information can include at least one of the following: azimuth angle information, elevation angle information. Of course, the angle information can also include other information, which is not limited in the embodiments of the present application.

[0108] In some embodiments of the present application, the time delay information can be a time delay value.

[0109] In some embodiments of the present application, the Doppler shift information can also be referred to as Doppler information or Doppler domain information.

[0110] In some embodiments of the present application, the Doppler shift information can be a Doppler shift amount.

[0111] In some embodiments of the present application, the first configuration information includes at least one of the following:

[0112] First indication information;

[0113] Second indication information;

[0114] First numerical range.

[0115] In the embodiments of the present application, the first indication information is used to indicate the index of at least one basis vector in the basis vector set; the basis vector is used to represent M first information; the second indication information is used to indicate the index range of at least one basis vector in the basis vector set; and the first numerical range is used to indicate the value range of the M first information.

[0116] In some embodiments of the present application, the first indication information can be referred to as the indication information of the basis vector index. Of course, the first indication information can also be referred to as other indication information, which is not limited in the embodiments of the present application.

[0117] In some embodiments of the present application, the indication of each basis vector index of the first indication information can be a binary number or a bitmap. For example, the number of bits of the first indication information is or the first indication information can be a bitmap with a length of B x L. Wherein, L is the number of vectors included in the basis vector set, and B is the number of indicated basis vectors. The basis vector set can be indicated by the network side device, or it can be default, such as the full set of oversampling basis vectors or the full set of orthogonal basis vectors.

[0118] In some embodiments of the present application, the first indication information can be a combination number or a bitmap. For example, the number of bits of the first indication information is Or the first indication information can be a bitmap of length L, each bit indicating whether the corresponding basis vector is indicated. Wherein, L is the number of vectors contained in the basis vector set, and B is the number of indicated basis vectors. The basis vector set can be indicated by the network side device, or it can be default, such as the full set of oversampled basis vectors or the full set of orthogonal basis vectors.

[0119] In some embodiments of the present application, in the case where the first information indicates angle information, each basis vector can be a two-dimensional DFT vector (corresponding to a planar antenna array) or a one-dimensional DFT vector (for a linear antenna array). Wherein, the two-dimensional DFT vector and / or the one-dimensional DFT vector can be an oversampled DFT vector.

[0120] Wherein, the one-dimensional DFT vector can be represented as Or Wherein, m is the index of the DFT vector, and N1 is the number of elements of one DFT vector. For an oversampled one-dimensional DFT vector, it can be represented as Or Wherein, O represents the oversampling rate.

[0121] For a two-dimensional DFT vector, it can be represented as Wherein, Represents the Kronecker product, and d1 and d2 are both one-dimensional DFT vectors, which can have different dimensions; and for an oversampled two-dimensional DFT vector, it can be represented as Wherein, d1 and d2 are both oversampled one-dimensional DFT vectors, which can have different dimensions.

[0122] In some embodiments of the present application, in the case where the first information indicates at least one of delay information and Doppler shift information, each basis vector can be a one-dimensional DFT vector. Wherein, the one-dimensional DFT vector can be an oversampled DFT vector.

[0123] In some embodiments of the present application, the second indication information can specifically include indication information of at least one window, and the indication information of each window is used to indicate the starting point (or the starting point and the length, or the default starting point and only the length) of the each window, wherein the length can be protocol agreed or default. If the length is protocol agreed or default, the indication information of each window is used to indicate the starting point of the each window.

[0124] In some embodiments of the present application, the first numerical range can include one or more specific numerical ranges. Wherein, the numerical range can be a physical numerical range or a relative value range relative to a certain maximum value.

[0125] For example, assuming that the first information indicates angle information (e.g., an angle value), the first numerical range can be (θ1, θ2), where θ1 and θ2 can represent a physical angle value or an radian value, or represent a relative ratio value, i.e., a ratio value relative to a maximum angle θ max For example, assuming that the first information indicates angle information (e.g., an angle value), the first numerical range can be (θ1, θ2), where θ1 and θ2 can represent a physical angle value or an radian value, or represent a relative ratio value, i.e., a ratio value relative to a maximum angle θ

[0126] For example, assuming that the first information indicates angle information (e.g., an angle value), the first numerical range can be represented by a reference value and an offset range relative to the reference value, e.g., the first numerical range can be a reference azimuth / elevation angle θ and a corresponding offset range Δθ, then the first numerical range can be (θ, θ+Δθ) or (θ-Δθ, θ), where it is assumed that Δθ≥0. Alternatively, two offsets can be configured to represent the upper and lower boundaries, e.g., two offsets Δθ1 and Δθ2 can be configured, where it is assumed that Δθ1 and Δθ2 are both greater than or equal to 0, then the first numerical range can be (θ-Δθ1, θ+Δθ2). It can be understood that if Δθ is less than or equal to 0, Δθ in the above expression can be replaced by -Δθ. Similar operations can be performed for the case where Δθ1 or Δθ2 is less than or equal to 0.

[0127] It should be noted that θ, Δθ, Δθ1 and Δθ2 can be physical values or relative ratio values.

[0128] In some embodiments of the present application, in the case where the first information is used to indicate angle information, time delay information and Doppler shift information, the angle information can be configured by at least one of the first indication information, the second indication information and the first numerical range, the time delay information can be configured by at least one of the first indication information, the second indication information and the first numerical range, and the Doppler shift information can be configured by at least one of the first indication information, the second indication information and the first numerical range. In addition, the information used to configure the angle information is different from the information used to configure the time delay information, the information used to configure the angle information is different from the information used to configure the Doppler shift information, and the information used to configure the time delay information is different from the information used to configure the Doppler shift information.

[0129] For example, the first configuration information can include the first indication information, the second indication information and the first numerical range, where the first indication information is used to indicate an index of at least one base vector (i.e., a base vector used to represent M angle information) in a base vector set; the second indication information is used to indicate an index of at least one base vector (i.e., a base vector used to represent M Doppler shift information) in a base vector set; and the first numerical range is used to indicate a value range of the M time delay information.

[0130] In some embodiments of the present application, for each of the M first information, one of the first information can be used to indicate two of the angle information, the time delay information and the Doppler shift information. For example, in the case that the one of the first information is used to indicate the angle information and the time delay information, the angle information can be configured by at least one of the first indication information, the second indication information and the first value range, and the time delay information can be configured by at least one of the first indication information, the second indication information and the first value range, wherein the information used to configure the angle information is different from the information used to configure the time delay information. For the case that the one of the first information is used to indicate the angle information and the Doppler shift information, or the case that the one of the first information is used to indicate the time delay information and the Doppler shift information, similar to the case that the one of the first information is used to indicate the angle information and the time delay information, which will not be described herein.

[0131] Exemplarily, the first configuration information can include the first indication information and the first value range, wherein the first indication information is used to indicate the index of the at least one base vector (i.e. the base vector used to represent the M angle information) in the base vector set; and the first value range is used to indicate the value range of the M time delay information.

[0132] It should be noted that, due to the timing offset between the network side device and the terminal, the value range of the time delay information is relative to the strongest time delay path or the first arrival time delay path observed by the terminal, wherein the first arrival time delay path is the first time delay path with energy greater than a certain threshold.

[0133] In some embodiments of the present application, for each of the M first information, in the case that one of the first information is used to indicate the angle information, the time delay information and the Doppler shift information, the angle information, the time delay information and the Doppler shift information or the combination of at least two of the angle information, the time delay information and the Doppler shift information has an identification number, and the first configuration information can further realize the configuration of the M first information by containing or indicating the at least one identification number.

[0134] As can be seen, since the specific content included in the first configuration information is specified in the embodiments of the present application, the terminal can accurately determine the first information based on the specific content when receiving the first configuration information, so as to obtain the M first information, and therefore, the terminal can accurately measure the N reference signal resources based on the M first information, so as to accurately obtain the precoding information suitable for sensing.

[0135] Step 102, the terminal measures the N reference signal resources based on the first configuration information to determine the first precoding information.

[0136] In some embodiments of the present application, the reference signal resource is used to transmit a first reference signal. The first reference signal can include at least one of a channel state information-reference signal (CSI-RS), a demodulation reference signal (DMRS), a synchronization signal block (SSB), a positioning reference signal (PRS), or a reference signal specially designed for sensing functions. Of course, the first reference signal can also be other reference signals, and the embodiments of the present application do not limit this.

[0137] The first reference signal can be periodic, semi-persistent, or aperiodic.

[0138] In some embodiments of the present application, the N reference signal resources can be indicated by a network side device through reference signal resource configuration, or can be indicated by a network side device through reporting configuration (for example, the second configuration information in the following embodiments). The reporting configuration is used to configure the terminal to report precoding information.

[0139] In some embodiments of the present application, the N reference signal resources are associated with M first information, and N is a positive integer.

[0140] In some embodiments of the present application, the N reference signal resources and the M first information can be directly associated or indirectly associated.

[0141] In some embodiments of the present application, each reference signal resource of the N reference signal resources is associated with at least one of the M first information.

[0142] In some examples, each reference signal resource can be directly or indirectly associated with at least one of the M first information.

[0143] As can be seen, since the embodiments of the present application specify the association between each reference signal and the M first information, the terminal can accurately determine the N reference signal resources associated with the M first information based on the association, so as to accurately measure the N reference signal resources.

[0144] In some embodiments of the present application, the N reference signal resources belong to at least two resource sets, and one resource set is associated with at least one of the M first information.

[0145] In some embodiments of the present application, the reference signal resources in one resource set are indirectly associated with the first information associated with the one resource set.

[0146] Any one of the at least two resource sets can be a resource set (Resource Set), such as a non-zero power channel state information reference signal resource set (NZP CSI-RS Resource set); can also be a reference signal resource burst set (Burst Set), such as a synchronization signal block (SSB) burst set; can also be a group (Group), such as a group in the NZP CSI-RS Resource set; and can also be a resource pair (Pair).

[0147] In some examples, for each of the at least two resource sets, there is no intersection of the reference signal resources in one set. For example, resource set 1 is {resource 1, resource 2}, and resource set 2 is {resource 3, resource 4}.

[0148] In some examples, for each of the at least two resource sets, there is no intersection of the reference signal resources in one set. For example, resource set 1 is {resource 1, resource 2}, and resource set 2 is {resource 2, resource 3}.

[0149] As can be seen, since the present application embodiments specify the association mode between each reference signal and the M first information, the terminal can accurately determine the N reference signal resources associated with the M first information based on the association mode, and accurately measure the N reference signal resources.

[0150] In some embodiments of the present application, the N reference signal resources are associated with at least one second configuration information, and one second configuration information is associated with at least one of the M first information.

[0151] In some embodiments of the present application, the reference signal resources associated with one second configuration information are indirectly associated with the first information associated with one configuration information.

[0152] The second configuration information can be understood as the reporting configuration described above.

[0153] In some examples, all reference signal resources associated with one second configuration information are used for measurement of the first information associated with the one second configuration information.

[0154] Thus, as the application embodiments specify the association manner between each reference signal and the M first information, the terminal can accurately determine the N reference signal resources associated with the M first information based on the association manner, and accurately measure the N reference signal resources.

[0155] In some embodiments of the application, for each of the M first information, the one first information can include multiple sub-information, and for at least one reference signal resource associated with the one first information, only one sub-information of the multiple sub-information can be associated. Each of the sub-information indicates part of the angle information, part of the time delay information or part of the Doppler shift information indicated by the first information. For example, the first information indicates angle information and time delay information, and the sub-information can indicate part of the angle information, or part of the time delay information, or part of the angle information and part of the time delay information. It should be understood that the indication of part of the information also includes the indication of all the information.

[0156] In some embodiments of the application, for each of the M first information, the association manner of different first information and reference signal resources can be different.

[0157] In some embodiments of the application, the configuration of the association relationship can be embodied by including the identification number of the first information, for example, including the identification number of the first information in the reporting configuration, the reference signal resource configuration or the reference signal resource set configuration; and for the case that one first information includes multiple sub-information, each sub-information can have an identification number, and one first information can be associated by including the identification numbers of the multiple sub-information or including the multiple sub-information, and the reporting configuration, the reference signal resource configuration or the reference signal resource set configuration, etc. can associate the sub-information by including the identification numbers of the sub-information.

[0158] In some embodiments of the application, the first information can be triggered or activated / deactivated dynamically or semi-statically by signaling, or the measurement of the first information can be triggered or activated / deactivated implicitly, for example, by triggering or activating / deactivating the associated reference signal resource or reference signal resource group.

[0159] Wherein, the triggering or activation of a certain first information means that the first information will be used for the measurement of the first precoding information (such as the sensing precoding information); and the deactivation means that the first information will not be used for the measurement of the first precoding information.

[0160] In some embodiments of the present application, the terminal can first perform channel estimation on the N reference signal resources, and then perform filtering processing on the result of the channel estimation based on the M first information configured by the first configuration information to determine the first precoding information; or the terminal can first perform filtering processing on the first reference signal of the N reference signal resources based on the M first information configured by the first configuration information, and then perform measurement on the filtered first reference signal to determine the first precoding information.

[0161] For example, one first information is used to indicate angle information and delay information. As shown in FIG. 4A, the square block with a shaded area in FIG. 4A indicates the response found at the corresponding angle information and delay information, the dashed box represents one first information (which can include one angle information and one delay information) configured by the network side device, and then the terminal can perform filtering processing based on the one angle information and the one delay information. As shown in FIG. 4B, after filtering processing, the terminal can obtain the response located in the one angle information and the one delay information.

[0162] In the embodiments of the present application, there can be a response from the wireless channel propagation environment itself outside the perception area. As shown in FIG. 4A and FIG. 4B, if the M first information is not configured, the environmental components will affect the measurement and calculation of the terminal on the first precoding information. For example, if the environmental component strength is relatively high, the first precoding information calculated by the terminal will be more biased towards the environmental component rather than the perception target. The M first information in the embodiments of the present application has the beneficial effect of making the calculation of the first precoding information of the terminal more accurate, as described above.

[0163] The embodiment of the present application provides a precoding information determination method, a terminal can receive first configuration information for configuring M first information from a network side device, the first information is used for indicating at least one of angle information, time delay information and Doppler frequency shift information, M is a positive integer, and the terminal measures N reference signal resources based on the first configuration information to determine first precoding information. Since the terminal can receive the first configuration information from the network side device, the terminal can know the M first information through the first configuration information, and the first information is used for indicating at least one of the angle information, the time delay information and the Doppler frequency shift information, that is, the first information is related to sensing, that is, the terminal can know the M first information related to sensing through the first configuration information, therefore, the terminal measures the N reference signal resources based on the first configuration information, that is, the terminal measures the N reference signal resources based on the M first information related to sensing, and the first precoding information suitable for sensing can be obtained, so that after the terminal reports the first precoding information, the network side device can accurately determine a precoding matrix suitable for sensing, and precoding is performed based on the precoding matrix suitable for sensing when sensing is performed subsequently, and therefore, the sensing performance can be improved.

[0164] In some embodiments of the present application, as shown in Figure 5, before step 102, the precoding information determination method provided by the embodiment of the present application can further include steps 201 and 202.

[0165] Step 201: The terminal receives at least one second configuration information from the network side device.

[0166] It should be noted that the execution sequence of step 101 and step 201 is not limited in the embodiment of the present application. In one example, the terminal can execute step 101 first, and then execute step 201, and Figure 5 is schematically shown in this execution sequence. In another example, the terminal can execute step 201 first, and then execute step 101. In yet another example, the terminal can execute step 201 while executing step 101.

[0167] In some embodiments of the present application, the second configuration information is used for configuring the terminal to report precoding information.

[0168] In one example, the second configuration information is used for configuring the terminal to report sensing precoding information.

[0169] For example, the network side device can configure the codebook type or the reporting type in the second configuration information as only sensing precoding information.

[0170] Exemplarily, the network-side device can configure the codebook type (e.g., codebookType) as “sensing”, or configure the reporting quantity (e.g., reportQuantity) as “cri-sensing”.

[0171] For example, the network-side device can configure the codebook type or the reporting type in the second configuration information as sensing and communication precoding information.

[0172] Exemplarily, the network-side device can configure the codebook type (e.g., codebookType) as “sensing-eTypeII”, or configure the reporting quantity (e.g., reportQuantity) as “cri-sensing-PMI”.

[0173] Step 202, the terminal indicates at least part of the precoding information in the first precoding information to the network-side device according to at least one second configuration information.

[0174] In some embodiments of the present application, the at least part of the precoding information is used by the network-side device to determine a precoding matrix, which is at least used for sensing (e.g., sensing the transmission of a reference signal, etc.).

[0175] In some embodiments of the present application, the at least part of the precoding information indicates at least one of the following:

[0176] At least one first spatial domain vector;

[0177] At least one first port selection information;

[0178] At least one first spatial domain beam information;

[0179] At least one first precoding codebook.

[0180] In some embodiments of the present application, the first spatial domain vector can be a two-dimensional DFT vector or an oversampled two-dimensional DFT (degenerate into a one-dimensional DFT vector or a one-dimensional oversampled DFT vector for a linear array); or can be a two-dimensional DFT vector or an oversampled two-dimensional DFT vector b shared by two polarization directions (degenerate into a one-dimensional DFT vector or a one-dimensional oversampled DFT vector for a linear array), and then superimpose a phase φ between the two polarizations, that is, it can be represented as

[0181] In some examples, the first spatial domain vector can be indicated by reporting the index (which can be divided into two dimensions) of the DFT vector (which can be oversampled). Further, if the first information configured by the network side device is used to indicate the angle information, it can be indicated by the offset relative to the reference basis vector or the upper or lower boundary of the angle information. The offset can be indicated according to the offset between the oversampled basis vectors, or can be indicated by reporting the offset between the non-oversampled basis vectors and the offset between the oversampled groups. For example, assuming that the oversampled group of the reference basis vector and the index within the group are n and q respectively, the oversampled group of the DFT vector and the index within the group can be indicated by feeding back the offset between the non-oversampled basis vectors Δn and the offset between the oversampled groups Δq, that is, n+Δn q+Δq and n+Δn. In addition, the DFT vector can also be indicated by reporting the relative position of the DFT vector in the angle information, for example, indicating the relative serial number of the DFT vector in the plurality of basis vectors indicated by the first information. Alternatively, for a two-dimensional DFT vector, the above-mentioned offset (including the offset between the sampling groups) can be indicated by the offset of two dimensions.

[0182] In some embodiments of the present application, the number of the above-mentioned first spatial domain vectors can be configured by the network side device, or the maximum value of the first spatial domain vector is configured by the network side device, that is, the number of the first spatial domain vectors finally reported by the terminal can be less than the number configured by the network side device.

[0183] In the embodiments of the present application, the above-mentioned first port selection information is used to indicate the port of the reference signal selected by the terminal.

[0184] In some embodiments of the present application, the number of the above-mentioned first port selection information can be configured by the network side device, or the maximum value of the first port selection information is configured by the network side device, that is, the number of the first port selection information finally reported by the terminal can be less than the number configured by the network side device.

[0185] In the embodiments of the present application, the above-mentioned first spatial domain beam information includes the linear combination of at least one spatial domain basis vector.

[0186] In some embodiments of the present application, the number of the above-mentioned first spatial domain beam information can be configured by the network side device, or the maximum value of the first spatial domain beam information is configured by the network side device, that is, the number of the first spatial domain beam information finally reported by the terminal can be less than the number configured by the network side device.

[0187] In some embodiments of the present application, the above-mentioned spatial domain basis vector can be a two-dimensional DFT vector or an oversampled two-dimensional DFT, can be selected from a set configured by the network side device, and can also be a port selection vector.

[0188] In some embodiments of the present application, for each first spatial domain beam information, a selected spatial domain basis vector (for example, a selected DFT vector is indicated by an index of a DFT vector, or a port selection vector is indicated by a selected port) and a corresponding linear superposition coefficient need to be reported. The reporting of the linear superposition coefficient can be quantized reporting by amplitude and phase, or quantized reporting by separating into real part and imaginary part.

[0189] In some embodiments of the present application, the first precoding codebook described above includes at least one precoding vector.

[0190] In some embodiments of the present application, the first precoding codebook described above can be configured by a reporting type configuration or a codebook type indicated in the second configuration information. The reporting type configuration or the codebook type is used to configure the precoding type of the reported precoding information (i.e., at least part of the precoding information). The precoding type of the first precoding codebook can be a type for sensing and communication.

[0191] In some embodiments of the present application, the first precoding codebook described above can include at least one of the following: Type-I codebook, Type-II codebook, eType-II codebook, other codebooks for CSI feedback, etc.

[0192] In some embodiments of the present application, the related configuration parameters of the first precoding codebook described above and the codebook related parameters used for communication precoding reporting adopt different parameter sets or parameter tables. For example, the configurable parameter set of the first precoding codebook when reported in the eType-II codebook is shown in Table 2, and the related configurable parameters of the eType-II codebook for communication precoding reporting are shown in Table 3. Wherein, L, p v and β are codebook parameters, and v represents the index of the layer.

[0193] Table 2

[0194] Table 3

[0195] As can be seen, since the present application embodiment specifies the specific content required to be included in at least part of the precoding information, the terminal can accurately report the information required by the network side device according to the specific content, so that the network side device can accurately determine the precoding matrix used for sensing.

[0196] In summary, since the terminal can receive at least one second configuration information from the network side device, and indicate to the network side device to determine at least part of the precoding information in the first precoding information according to the at least one second configuration information, the network side device can accurately determine the precoding matrix suitable for sensing based on the at least part of the precoding information.

[0197] In some embodiments of the present application, each of the M first information corresponds to at least one of the first precoding information; wherein the at least part of the precoding information is: the precoding information in the at least one precoding information corresponding to the T first information in the M first information, and T is a positive integer less than or equal to M.

[0198] In some embodiments of the present application, each of the T first information can correspond to at least one precoding information, and the at least part of the precoding information is the precoding information in the at least one precoding information corresponding to the each of the T first information.

[0199] It can be understood that the number of the at least part of the precoding information can be N2, that is, the sum of the number of the precoding information in the at least one precoding information corresponding to the T first information belonging to the at least part of the precoding information is N2, and the N2 satisfies: Wherein N m ≥ 0, N m represents the number of the precoding information in the at least one precoding information corresponding to the mth first information in the T first information belonging to the at least part of the precoding information. Optionally, the terminal needs to implicitly or explicitly indicate the correspondence between each precoding information belonging to the at least part of the precoding information and each of the T first information, or determine by a certain rule; m is a positive integer. Optionally, when M = 1, the terminal can not indicate the above correspondence.

[0200] In some examples, the determination rule of the number N m of the precoding information in the at least one precoding information corresponding to the mth first information in the T first information belonging to the at least part of the precoding information includes at least one of the following:

[0201] Determination rule 1: N m may be displayed or implicitly configured by the network side device, and optionally, N m may depend on M, for example, the network side device configures the total number of reporting (that is, the number of the precoding information in the at least one precoding information corresponding to the T first information) N2, and N m may take a value of Wherein represents the floor function;

[0202] Determination rule 2: the network side device can configure the value of N2, and the terminal determines the value of N m , optionally, the maximum and / or minimum value of N m may be configured by the base station, or specified by the protocol or default;

[0203] Rule 3: The network-side device can configure the maximum value of N2, and the terminal determines N2 and N. m Optionally, N m The maximum and / or minimum values ​​can be configured by the base station, or specified by the protocol or by default.

[0204] Specifically, the N2 value can be configured for network-side devices, and the terminal determines N. m The rule for determining the value, if N m There is a minimum value constraint, for example, the minimum value is N. m,min Then the terminal can select N from at least one precoded information corresponding to the m-th first information among the T first information. m,min The top N with the highest perceived performance metrics m,min There are N precoding information. Further, the terminal can sort the perceived performance indicators or QoS of at least one precoding information corresponding to the T first information in descending order of performance (excluding already selected precoding information), and then sequentially select the precoding information with the best perceived performance indicators or QoS, until a total of N2 precoding information are selected as at least a portion of the aforementioned precoding information. It should be noted that if there are N... m Maximum value limit: In the above selection process, for a certain precoding information to be selected (i.e., at this time, precoding information with better perceived performance indicators or QoS has been selected or because there is N), m (Cannot be selected due to maximum value limitation), if the corresponding first information has already been selected by the precoded information, which has reached N. m If there is a maximum value limit, then this precoded information will not be selected.

[0205] Among these, the maximum value of N2 can be configured for network-side devices, and the terminal determines N2 and N. m The selection method and network-side devices can configure the N2 value, and the terminal determines N. m The method is similar, except that precoding information that does not meet the perceived performance indicators or QoS requirements (such as precoding information that is less than the threshold configured by the network-side device) needs to be removed. In this case, the number of precoding information selected may be less than N2.

[0206] It should be noted that the perception performance indicators include at least one of the following: a received power related indicator, an interference and noise power related indicator, a perception signal to interference plus noise ratio (SINR) related indicator, a perception signal to noise ratio (SNR) related indicator, a perception signal to interference ratio (SIR) related indicator, a perception reference signal receiving quality (RSRQ) related indicator, a perception measurement quantity related statistical indicator, an ambiguity function related evaluation indicator, a Cramér-Rao lower bound (CRLB), a capacity-distortion tradeoff, an equivalent-MSE, an estimation-communication rate, a Welch bound, a perception reproducible evaluation indicator, and a calculation result of any at least two of the above perception SNR, perception SINR, CRLB, etc. indicators through at least one of addition, subtraction, multiplication, and division operations.

[0207] The received power related indicator includes a first indicator (received power of a perception target associated path): a linear average value (in W) of the received power of a path associated with a perception target (also referred to as a target path) in a channel response measured from a first signal on a resource unit carrying the first signal. The resource unit is a time domain and / or a frequency domain resource unit; and the first signal can be a perception signal such as a dedicated signal for a perception service, or a communication signal such as a reference signal, a synchronization signal, etc.

[0208] The interference and noise power related indicator includes at least one of the following: a second indicator, a third indicator, and a fourth indicator.

[0209] The second index is a linear average of the power of the other paths in the channel response of the first signal on the target resource, and a linear average of the interference and noise power of other signals than the first signal on the target resource or other resources (for example, resources configured by high-layer signaling) (unit: W); the target resource can be a time-frequency domain resource unit carrying the first signal; the second index = total received power - the first index; the total received power can be represented as a linear average of the total received power (including the received power of signals of the serving cell and non-serving cells, adjacent channel interference, thermal noise, etc.) on the target resource (unit: W); or the total received power = RSSI*K1, K1 is a coefficient, and the measurement resource of the received signal strength indication (RSSI) is the target resource or other resources (for example, resources configured by high-layer signaling).

[0210] The third index is a linear average of the interference and noise power of other signals than the first signal on the target resource or other resources (for example, resources configured by high-layer signaling) (unit: W); the target resource can be a time-frequency domain resource unit carrying the first signal; the third index = total received power - first signal received power; the first signal received power is the reference signal receiving power (RSRP) of the first signal.

[0211] The fourth index is a linear average of the power of the other paths in the channel response of the first signal on the target resource (unit: W); the fourth index = RSRP of the first signal - the first index.

[0212] The perception SINR-related index or the perception SNR-related index or the perception SIR-related index can include at least one of the following: the fifth index, the sixth index, the seventh index, and the eighth index. The fifth index = the first index / the second index; the sixth index = the first index / the third index; the seventh index = the first index / the fourth index.

[0213] The perception RSRP-related index includes the eighth index, and the eighth index = K2*the first index / total received power, K2 is a coefficient.

[0214] The perception measurement quantity-related statistical index can be a statistical mean, standard deviation, or variance of multiple measurement results of the same perception measurement quantity, or a deviation between a predicted value and an actual measurement value of the perception measurement quantity / perception result, and a statistical mean, standard deviation, or variance of the deviation.

[0215] The evaluation index of the blur function correlation includes a normalized sidelobe level (NSL), i.e., the height of the highest sidelobe of the normalized blur function; or a ratio of the main lobe to the highest sidelobe (or a ratio of the highest sidelobe to the main lobe) of the blur function; in addition, the number of normalized blur function sidelobes with a peak higher than a given threshold / total power / total energy, a main lobe width (3dB width) of the blur function, etc.

[0216] The Cramer-Rao lower bound is the lowest variance that can be achieved by all unbiased estimators, which is equal to the reciprocal of the Fisher information in mathematics, and is related to the perceived SNR.

[0217] The sum-rate distortion function quantitatively gives the maximum achievable rate of reliable transmission of the integrated sensing and communication system under a given distortion constraint.

[0218] The equivalent mean square error is the conversion of the spectral efficiency of communication into an equivalent radar mean square error, which can be obtained by combining the perceived Cramer-Rao lower bound.

[0219] The radar estimation rate is to regard the sensing channel as a non-cooperative communication channel, and the mutual information between the sensing system and the target is the estimation rate.

[0220] The sensing reproducible evaluation index (such as the sum of Euclidean distances between two sequences of sample points, or the regular path distance in dynamic time warping (DTW), or other indexes that can reflect the similarity of two sequences, including but not limited to: longest common subsequence (LCSS), edit distance on real sequences (EDR), edit distance with real penalty (ERP), Hausdorff distance, Frechet distance, one way distance (OWD), locality in-between polylines (LIP), etc.).

[0221] Therefore, the resources occupied by the reporting of the precoding information can be reduced.

[0222] In some embodiments of the present application, the T first information satisfies at least one of the following:

[0223] is the first information associated with the at least one second configuration information configuration;

[0224] is the first information associated with the at least one second configuration information configuration, which is activated or triggered by the network side device;

[0225] is the first information associated with the at least one second configuration information configuration, which is determined by the terminal;

[0226] is the first information activated or triggered by the network side device, which is determined by the terminal;

[0227] is the first information of the M first information, in which the perception performance index corresponding to the at least one precoding information is greater than or equal to the first threshold value;

[0228] is the first information of the M first information, in which the number of perception performance indexes corresponding to the at least one precoding information is less than or equal to the second threshold value, and does not exceed the first number.

[0229] In some embodiments of the present application, the first threshold value described above can be configured by the network side device, or agreed by the protocol, or determined by the terminal. The second threshold value described above can be configured by the network side device, or agreed by the protocol, or determined by the terminal. The first number described above can be configured by the network side device, or agreed by the protocol, or determined by the terminal.

[0230] In some embodiments of the present application, the number of T first information is configured by the base station or agreed by the protocol; or the maximum value of the number of T first information is configured by the base station or agreed by the protocol.

[0231] In some embodiments of the present application, the terminal can indicate T first information to the network side device by means of bitmap or index or combination number. Optionally, in the case of T first information being M first information, the terminal can not indicate T first information to the network side device.

[0232] In some embodiments of the present application, the terminal can report the number of T first information to the network side device.

[0233] In some embodiments of the present application, the terminal can also report the perception performance index corresponding to T first information, or select one or more precoding information corresponding to the precoding information of T first information to report the corresponding perception performance index. Among them, the terminal can report N3 perception performance indexes with the best perception performance, and N3 can be configured by the network side device or the maximum value thereof can be configured by the network side device.

[0234] In some embodiments of the present application, the number of the T first information is equal to the number of the activated or triggered first information.

[0235] In some embodiments of the present application, when the terminal determines that there is no sensing target in the mth first information of the M first information, for example, the sensing performance indicators of the mth first information are all less than a second threshold value (which can be configured by the network side device or agreed by the protocol), the terminal can not report the related information (such as precoding information, sensing performance indicators, etc.) of the mth first information.

[0236] Therefore, the terminal can accurately determine the T first information based on the condition, and report the precoding information corresponding to the T first information, so that the network side device can obtain the required precoding information.

[0237] In some embodiments of the present application, the precoding type of the at least part of the precoding information includes at least one of the following:

[0238] The first precoding type;

[0239] The second precoding type.

[0240] In the embodiments of the present application, the precoding information of the first precoding type is used for sensing, and the precoding information of the second precoding type is used for sensing and communication.

[0241] In some embodiments of the present application, the reporting type configuration or the codebook type in the at least one second configuration information can indicate the precoding type of the at least part of the precoding information. It can be understood that if the reporting type configuration or the codebook type in the at least one second configuration information indicates the first precoding type, the precoding type of the at least part of the precoding information is the first precoding type, and if the reporting type configuration or the codebook type in the at least one second configuration information indicates the second precoding type, the precoding type of the at least part of the precoding information is the second precoding type.

[0242] In some embodiments of the present application, the precoding information of the first precoding type is used for digital beamforming in sensing. Each vector in the precoding information can be a certain codebook newly defined for sensing, for example, a certain digital beam information used for searching a fixed direction, or a combined beam information capable of sensing multiple targets at the same time and having better performance, or a codebook type, including Type-I codebook, Type-II codebook, eType-II codebook, etc., or other codebook types for CSI feedback in the future.

[0243] In some embodiments of the present application, the second precoding type of precoding information is used for digital beamforming in perception and communication. The second precoding type of precoding information can be configured as an existing codebook type, including Type-I codebook, Type-II codebook, eType-II codebook, etc., or other codebook types for CSI feedback in the future.

[0244] In some embodiments of the present application, at least part of the second precoding type of precoding information can be a precoding matrix. The precoding information for perception can be part of the precoding matrix. For example, the precoding matrix of the second precoding type has 4 layers, and the precoding information for perception can be the first 2 layers. How to select the precoding information of the second precoding type will be described below. For a certain perception area, the precoding information can be selected by solving the following optimization problem:

[0245] Wherein, W represents the precoding matrix, W1 represents the set of selectable precoding matrices, R(W) represents the communication rate under the precoding matrix W, W n represents the nth column in W, i.e. the nth precoding vector, I(W n ) represents the perception performance index under the precoding vector W n , and λ>0 represents the trade-off between communication rate and perception performance.

[0246] It should be noted that the selection method of the first precoding type of precoding information for perception can refer to the selection method of the second precoding type of precoding information. For example, λ in the above optimization problem can be taken as 0, at which time only the perception performance is concerned.

[0247] Therefore, the terminal can flexibly select the precoding type of at least part of the reported precoding information based on the possible precoding type of at least part of the precoding information according to the indication of the network side device or the determination of the terminal itself, since the possible precoding type of at least part of the precoding information is specified in the embodiments of the present application.

[0248] In some embodiments of the present application, each of the M first information corresponds to at least one precoding information in the first precoding information. In one example, after the step 202, the precoding information determination method provided by the embodiments of the present application can further include the following step 203.

[0249] Step 203: In the case that the second information in the M first information satisfies the preset condition, the terminal reports the third indication information to the network side device.

[0250] It can be understood that the terminal can report the third indication information to the network side device in a case where the second information in the M first information satisfies a preset condition after reporting the at least partial precoding information.

[0251] In the embodiments of the present application, the preset condition includes at least one of the following:

[0252] The perception performance indicators of the at least one remaining precoding information corresponding to the second information are all greater than or equal to a third threshold value;

[0253] The number of the perception performance indicators of the at least one remaining precoding information corresponding to the second information that are greater than or equal to a fourth threshold value exceeds a second number.

[0254] The third indication information is used to indicate at least one of the following: the second information, the number of the at least one remaining precoding information corresponding to the second information; and the remaining precoding information is the precoding information other than the at least partial precoding information reported from the at least one precoding information corresponding to the second information.

[0255] In some embodiments of the present application, the third threshold value can be configured by the network side device, agreed by a protocol or determined by the terminal. The fourth threshold value can be configured by the network side device, agreed by a protocol or determined by the terminal. The second number can be configured by the network side device, agreed by a protocol or determined by the terminal.

[0256] As can be seen, since the terminal can determine that the second information satisfies the preset condition and report the third indication information to the network side device in a case where the network side device is pre-configured inaccurately, for example, in a case where there are multiple perception targets in the perception area and the number of the multiple perception targets is greater than the number configured by the network side device, the network side device can re-configure the reporting parameters and allocate the reporting resources, so that the information reported by the terminal is more sufficient, and then the network side device can accurately determine the precoding matrix used for perception.

[0257] In some embodiments of the present application, after the step 102, in combination with FIG. 3, as shown in FIG. 6, the precoding information determination method provided by the embodiments of the present application can further include the following step 103.

[0258] Step 103: The terminal indicates the first measurement information to the network side device.

[0259] In the embodiments of the present application, the first measurement information includes at least one of the following:

[0260] indication information of whether the perception target is detected;

[0261] the number of the measured perception target;

[0262] a parameter estimation result of a detected sensing target; spectrum information.

[0263] In some embodiments of the present application, the parameter estimation result comprises at least one of the following: delay information, Doppler information, angle information, distance information, speed information, position coordinate information, orientation information, acceleration information.

[0264] In some embodiments of the present application, the spectrum information comprises at least one of the following: delay spectrum information, distance spectrum information, Doppler spectrum information, speed spectrum information, angle (including azimuth and / or elevation) spectrum information; or, the spectrum information comprises joint spectrum information of at least two of the following: delay / distance, Doppler / speed, angle, such as delay-Doppler spectrum information, or delay-Doppler-angle spectrum information.

[0265] As can be seen, since the terminal can also indicate the first measurement information to the network side device, so that the network side device can know various information related to the sensing target, the network side device can accurately determine the precoding matrix used for sensing based on the first measurement information.

[0266] FIG. 7 shows a flow diagram of a precoding information determination method according to an embodiment of the present application. As shown in FIG. 7, the precoding information determination method according to an embodiment of the present application can comprise the following step 301.

[0267] Step 301: The network side device sends first configuration information to the terminal.

[0268] In the embodiments of the present application, the first configuration information is used to configure M first information, which is used to indicate at least one of the following: angle information, delay information, Doppler frequency shift information, and the first configuration information is also used to measure N reference signal resources to determine first precoding information. M and N are both positive integers.

[0269] It should be noted that the description of the first configuration information, the M first information, the N reference signal resources, and the first precoding information can refer to the specific description in the above embodiments, which will not be repeated here.

[0270] In some embodiments of the present application, the N reference signal resources are associated with the M first information.

[0271] In some embodiments of the present application, the M first information can be determined by the network side device based on sensing requirements or historical sensing information.

[0272] The sensing requirements can include the following information:

[0273] sensing service or sensing service type;

[0274] a target area is perceived;

[0275] an object type is perceived;

[0276] a number of targets is perceived;

[0277] a QoS is perceived.

[0278] For a perception service or a perception service type, the perception service can be, for example, detection of whether a target exists, positioning, trajectory tracking, speed detection, distance detection, angle detection, acceleration detection, material analysis, component analysis, shape detection, category division, radar cross section (RCS) detection, polarization scattering characteristic detection, fall detection, intrusion detection, quantity statistics, indoor positioning, gesture recognition, lip reading, gait recognition, expression recognition, face recognition, respiration monitoring, heart rate monitoring, pulse monitoring, humidity / brightness / temperature / air pressure monitoring, air quality monitoring, weather condition monitoring, environment reconstruction, topography, building / vegetation distribution detection, people flow or vehicle flow detection, crowd density or vehicle density detection, etc. The perception service type can be classification of multiple different perception services according to certain characteristics, for example, classification into detection type perception services (for example, including intrusion detection and fall detection), parameter estimation type perception services (distance, angle, and speed calculation), and recognition type perception services (action recognition and identity recognition). The perception service type can also be classified according to a perception range (short-range perception, medium-range perception, and long-range perception), according to a perception precision (coarse-grained perception and fine-grained perception), according to power consumption / energy consumption, according to resource occupation, etc. If the perception service is respiration monitoring, the corresponding normal respiration frequency can be determined according to the gender and age of a person (for example, male: 13-21 times / minute, female: 15-20 times / minute; adult: 12-20 times / minute, and child: about 30-40 times / minute), which can be used as perception prior information. For example, the corresponding service in the perception requirement is highway scene target detection, and the target speed should be in the range of 60 km / h-150 km / h, which can be used as perception prior information.

[0279] For a perception target area, it refers to a position area of a perception object or a position area that needs to be imaged or reconstructed. For example, a preset interval range of a time delay of a perception target correlation radius is determined according to the approximate position / distance of a perception object.

[0280] For a perception object type, it refers to classification of perception objects according to possible motion characteristics of the perception objects. Each perception object type includes information such as a typical motion speed range, a typical motion acceleration range, and a typical RCS range of a typical perception object.

[0281] For the number of perception targets, for example, the camera perception result can be used as a kind of perception prior information to obtain the number of perception targets.

[0282] For the perception QoS, it refers to the performance index of the perception of the perception target area or the perception object. The perception QoS can include at least one of the following: perception resolution (which can be further divided into: ranging resolution, angle resolution, speed resolution, imaging resolution), etc.; perception accuracy (which can be further divided into: ranging accuracy, angle accuracy, speed accuracy, positioning accuracy, etc.); perception range (which can be further divided into: ranging range, speed range, angle range, imaging range, etc.); perception time delay (the time interval from sending a perception signal to obtaining a perception result, or the time interval from initiating a perception requirement to obtaining a perception result); perception update rate (the time interval between two adjacent times of performing perception and obtaining a perception result); detection probability (the probability of being correctly detected in the presence of a perception object); false alarm probability (the probability of falsely detecting a perception target in the absence of a perception object); and maximum number of perceivable perception targets.

[0283] The embodiment of the present application provides a precoding information determination method, a network side device can send first configuration information to a terminal, the first configuration information is used for configuring M first information, the first information is used for indicating at least one of the following: angle information, time delay information, Doppler shift information, the first configuration information is also used for measuring N reference signal resources to determine first precoding information. M and N are positive integers. Since the network side device can send the first configuration information to the terminal, the terminal can be indicated by the first configuration information M first information, and the first information is used to indicate at least one of the angle information, the time delay information and the Doppler shift information, that is, the first information is related to perception, that is, the network side device can indicate M first information related to perception to the terminal through the first configuration information, therefore, the terminal measures N reference signal resources based on the first configuration information, that is, the terminal measures N reference signal resources based on M first information related to perception, and the first precoding information suitable for perception can be obtained, so that after the terminal reports the first precoding information, the network side device can accurately determine the precoding matrix suitable for perception, and in subsequent perception, precoding is performed based on the precoding matrix suitable for perception, so that the perception performance can be improved.

[0284] In some embodiments of the present application, in combination with Figure 7, as shown in Figure 8, after the above step 301, the precoding information determination method provided by the embodiment of the present application can further include the following steps 302 and 303.

[0285] Step 302, the network side device sends at least one second configuration information to the terminal.

[0286] In the embodiments of the present application, the second configuration information is used for configuring the terminal to report the precoding information.

[0287] In a possible implementation, the N reference signal resources are associated with at least one second configuration information, and one second configuration information is associated with at least one of the M first information.

[0288] In step 303, the network-side device receives at least part of the first precoding information from the terminal.

[0289] It should be noted that the description of the at least part of the precoding information can refer to the specific description in the above embodiments, which will not be repeated here.

[0290] In some embodiments of the present application, after the network-side device receives the at least part of the precoding information, the network-side device can determine a precoding matrix according to the at least part of the precoding information. The precoding matrix is at least used for sensing (for example, for transmitting a sensing reference signal).

[0291] As can be seen, since the network-side device can send at least one second configuration information to the terminal, so that the terminal can indicate to the network-side device to determine at least part of the first precoding information according to the at least one second configuration information, the network-side device can accurately determine the precoding matrix suitable for sensing based on the at least part of the precoding information.

[0292] In some embodiments of the present application, each of the M first information corresponds to at least one precoding information in the first precoding information; and the at least part of the precoding information is precoding information in the at least one precoding information corresponding to T first information of the M first information, and T is a positive integer less than or equal to M.

[0293] As can be seen, since the terminal can report at least part of the T first information of the M first information, without reporting the precoding information of all the first information, the resources occupied by reporting the precoding information can be reduced.

[0294] In some embodiments of the present application, after the above step 303, the precoding information determination method provided by the embodiments of the present application can further include the following step 304.

[0295] In step 304, the network-side device receives third indication information from the terminal.

[0296] In the embodiments of the present application, the third indication information is used for indicating at least one of the following: the second information, and the number of at least one precoding information corresponding to the second information.

[0297] In the embodiments of the present application, the second information is information that meets a preset condition among the M first information; the preset condition includes at least one of the following:

[0298] The perception performance indicators of the at least one remaining precoding information corresponding to the second information are all greater than or equal to a third threshold value;

[0299] The number of the perception performance indicators of the at least one remaining precoding information corresponding to the second information that are greater than or equal to a fourth threshold value exceeds a second number;

[0300] The remaining precoding is: the precoding information other than the at least part of the reported precoding information among the at least one precoding information corresponding to the second information.

[0301] Therefore, the network side device can reconfigure the reporting parameters and allocate the reporting resources to make the information reported by the terminal more sufficient, and then the network side device can accurately determine the precoding matrix used for perception.

[0302] In some embodiments of the present application, after the step 301, the precoding information determination method provided by the embodiments of the present application can further include the following step 305.

[0303] In step 305, the network side device receives the first measurement information from the terminal.

[0304] In the embodiments of the present application, the first measurement information includes at least one of the following:

[0305] Indication information of whether the perception target is detected;

[0306] The number of the measured perception targets;

[0307] Parameter estimation result of the detected perception target;

[0308] Spectrum information.

[0309] It should be noted that the description of the parameter estimation result and the spectrum information can refer to the specific description in the above embodiments, and the embodiments of the present application will not be repeated here.

[0310] Therefore, the network side device can accurately determine the precoding matrix used for perception based on the first measurement information.

[0311] The pre-coding information determination method provided in the embodiments of the present application can be executed by a pre-coding information determination apparatus. The pre-coding information determination apparatus provided in the embodiments of the present application is described by taking the pre-coding information determination apparatus executing the pre-coding information determination method as an example.

[0312] The pre-coding information determination apparatus provided in the embodiments of the present application can be a communication device or a component in the communication device, for example, a chip. The communication device can be a terminal, a network side device or a server, etc. For example, the terminal can include but is not limited to the types of the terminal 11 listed above, the network side device can include but is not limited to the types of the network side device 12 listed above, and the embodiments of the present application do not make specific limitations.

[0313] The pre-coding information determination apparatus includes a receiving module, a sending module and a processing module. The receiving module, the sending module and the processing module can be implemented by software or hardware. When implemented by hardware, the processing module can be implemented by a processor, for example, a general processor, a special processor, etc., for example, a central processing unit (CPU), a microprocessor, a digital signal processor (DSP), an artificial intelligent (AI) processor, a graphics processing unit (GPU), an application specific integrated circuit (ASIC), a network processor (NP), a field programmable gate array (FPGA) or other programmable logic devices, a gate circuit, a transistor, a discrete hardware component, etc. The receiving module and the sending module can be implemented by a communication interface, which can include one or more of a transceiver, a pin, a circuit, a bus, a radio frequency unit, etc.

[0314] Specifically, referring to FIG. 9, when the pre-coding information determination apparatus is a terminal or a component in the terminal, the pre-coding information determination apparatus 40 includes a receiving module 41 and a processing module 42.

[0315] The receiving module 41 is configured to receive first configuration information from a network side device, the first configuration information being used to configure M first information, the first information being used to indicate at least one of the following: angle information, time delay information, and Doppler shift information, and M is a positive integer. The processing module 42 is configured to measure N reference signal resources based on the first configuration information received by the receiving module 41, to determine first precoding information, and N is a positive integer.

[0316] The embodiment of the present application provides a precoding information determination apparatus. The precoding information determination apparatus can receive first configuration information from a network side device, to obtain M first information through the first configuration information, and the first information is used to indicate at least one of the following: angle information, time delay information, and Doppler shift information, that is, the first information is related to sensing. Therefore, the precoding information determination apparatus can obtain M first information related to sensing through the first configuration information. The precoding information determination apparatus measures N reference signal resources based on the first configuration information, that is, the precoding information determination apparatus measures N reference signal resources based on M first information related to sensing, to obtain first precoding information suitable for sensing. Therefore, after the precoding information determination apparatus reports the first precoding information, the network side device can accurately determine a precoding matrix suitable for sensing, and perform precoding based on the precoding matrix suitable for sensing when performing sensing subsequently. In this way, the sensing performance can be improved.

[0317] In a possible implementation, each reference signal resource is associated with at least one of the M first information.

[0318] In a possible implementation, the N reference signal resources belong to at least two resource sets, and one resource set is associated with at least one of the M first information.

[0319] In a possible implementation, the receiving module 41 is further configured to receive at least one second configuration information from the network side device, the second configuration information being used to configure the precoding information determination apparatus 40 to report precoding information. The precoding information determination apparatus 40 provided by the embodiment of the present application can further include a sending module. The sending module is further configured to indicate at least part of the first precoding information to the network side device according to the at least one second configuration information received by the receiving module 41.

[0320] In a possible implementation, the N reference signal resources are associated with at least one second configuration information, and one second configuration information is associated with at least one of the M first information.

[0321] In a possible implementation, the at least part of the precoding information indicates at least one of: at least one first spatial domain vector; at least one first port selection information; at least one first spatial domain beam information; at least one first precoding codebook; wherein the first port selection information is used to indicate a port of the reference signal selected by the precoding information determining apparatus 40; the first spatial domain beam information comprises a linear combination of at least one spatial domain basis vector; and the first precoding codebook comprises at least one precoding vector.

[0322] In a possible implementation, the precoding type of the at least part of the precoding information comprises at least one of: a first precoding type; and a second precoding type; wherein the precoding information of the first precoding type is used for sensing; and the precoding information of the second precoding type is used for sensing and communication.

[0323] In a possible implementation, each of the M first information corresponds to at least one of the first precoding information; and the at least part of the precoding information is: the precoding information of the at least one of the first precoding information corresponding to T first information of the M first information, T being a positive integer less than or equal to M.

[0324] In a possible implementation, the T first information satisfies at least one of: being the first information associated with the at least one second configuration information; being the first information of the first information associated with the at least one second configuration information, the first information being activated or triggered by the network side device; being the first information of the first information associated with the at least one second configuration information, the first information being determined by the precoding information determining apparatus 40; being the first information of the first information activated or triggered by the network side device, the first information being determined by the precoding information determining apparatus 40; being the first information of the M first information, a sensing performance index of the corresponding at least one precoding information being greater than or equal to a first threshold value; and being the first information of the M first information, a number of sensing performance indexes of the corresponding at least one precoding information being less than or equal to a second threshold value, the number not exceeding a first number.

[0325] In a possible implementation, each of the M first information corresponds to at least one of the first precoding information; and the sending module is further configured to, after indicating, to the network-side device, at least part of the first precoding information according to the at least one second configuration information, and in a case where the second information of the M first information meets a preset condition, report, to the network-side device, third indication information; the preset condition includes at least one of the following: the sensing performance indicators of the at least one remaining precoding information corresponding to the second information are all greater than or equal to a third threshold value; the number of the sensing performance indicators of the at least one remaining precoding information corresponding to the second information that are greater than or equal to a fourth threshold value exceeds a second quantity; and the third indication information is used to indicate at least one of the following: the second information, and the number of the at least one remaining precoding information corresponding to the second information; and the remaining precoding information is the precoding information other than the at least part of the first precoding information.

[0326] In a possible implementation, the precoding information determination apparatus 40 provided by the embodiment of the present application can further include a sending module. The sending module is configured to indicate, to the network-side device, first measurement information, the first measurement information including at least one of the following: indication information of whether a sensing target is detected; a number of the sensing target measured; a parameter estimation result of the sensing target detected; and spectrum information.

[0327] In a possible implementation, the first configuration information includes at least one of the following: first indication information; second indication information; and a first numerical range; the first indication information is used to indicate an index of at least one basis vector in a basis vector set; the at least one basis vector is used to represent the M first information; the second indication information is used to indicate an index range of the at least one basis vector in the basis vector set; and the first numerical range is used to indicate a value range of the M first information.

[0328] Referring to FIG. 10, when the precoding information determination apparatus is a network-side device or a component in the network-side device, the precoding determination apparatus 50 includes a sending module 51.

[0329] The sending module 51 is configured to send, to a terminal, first configuration information, the first configuration information being used to configure M first information, the first information being used to indicate at least one of the following: angle information, time delay information, and Doppler frequency shift information; and the first configuration information is further used to measure N reference signal resources to determine first precoding information; and M and N are both positive integers.

[0330] This application provides a precoding information determination device. Since the precoding information determination device can send first configuration information to a terminal, it can indicate M first pieces of information to the terminal through the first configuration information. These first pieces of information indicate at least one of angle information, time delay information, and Doppler frequency shift information, meaning they are related to sensing. Therefore, the precoding information determination device can indicate the M first pieces of information related to sensing to the terminal through the first configuration information. Thus, the terminal measures N reference signal resources based on the first configuration information, i.e., the terminal measures N reference signal resources based on the M first pieces of information related to sensing, and can obtain first precoding information suitable for sensing. After the terminal reports the first precoding information, the precoding information determination device can accurately determine the precoding matrix suitable for sensing, and perform precoding based on the precoding matrix suitable for sensing during subsequent sensing operations. This improves sensing performance.

[0331] In one possible implementation, the sending module 51 is further configured to send at least one second configuration information to the terminal, the second configuration information being used to configure the terminal to report precoding information. The precoding information determining device 50 provided in this application embodiment may further include a receiving module. The receiving module is configured to receive at least a portion of the precoding information from the first precoding information received from the terminal.

[0332] In one possible implementation, each of the M first pieces of information corresponds to at least one precoded piece of information in the first precoded information; wherein, at least part of the precoded information is: the precoded information in at least one precoded piece of information corresponding to T of the M first pieces of information, where T is a positive integer less than or equal to M.

[0333] In one possible implementation, the receiving module is further configured to receive third indication information from the terminal, the third indication information indicating at least one of the following: the second information, the number of at least one precoded information corresponding to the second information; wherein, the second information is information among M first information that satisfies preset conditions; the preset conditions include at least one of the following: the perception performance index of at least one remaining precoded information corresponding to the second information is greater than or equal to a third threshold value; the number of perception performance indices of at least one remaining precoded information corresponding to the second information that are greater than or equal to a fourth threshold value exceeds a second quantity; the remaining precoded information is: precoded information other than at least some precoded information among the at least one precoded information corresponding to the second information.

[0334] In one possible implementation, the receiving module is further configured to receive first measurement information from the terminal, the first measurement information including at least one of the following: indication information on whether a sensed target is detected; the number of sensed targets measured; parameter estimation results of the detected sensed targets; and spectral information.

[0335] The pre-coding information determination apparatus provided by the embodiments of the present application can realize each process of the method embodiments of FIG. 3 to FIG. 8, and achieve the same technical effects. To avoid repetition, details are not described herein.

[0336] As shown in FIG. 11, the embodiments of the present application further provide a communication device 60, which includes a processor 61 and a memory 62, and the memory 62 stores programs or instructions executable on the processor 61. For example, when the communication device 60 is a terminal, the programs or instructions are executed by the processor 61 to realize each step of the pre-coding information determination method embodiments described above, and achieve the same technical effects. When the communication device 60 is a network side device, the programs or instructions are executed by the processor 61 to realize each step of the pre-coding information determination method embodiments described above, and achieve the same technical effects. To avoid repetition, details are not described herein.

[0337] The embodiments of the present application further provide a terminal, which includes a processor and a communication interface, the communication interface is coupled to the processor, and the processor is configured to run programs or instructions to realize the steps in the method embodiments shown in FIG. 3 to FIG. 6. The terminal embodiments correspond to the terminal side method embodiments described above, and each implementation process and implementation manner of the method embodiments can be applied to the terminal embodiments, and achieve the same technical effects. The terminal can be the pre-coding information determination apparatus shown in FIG. 9. Specifically, FIG. 12 is a schematic diagram of a hardware structure of a terminal according to an embodiment of the present application.

[0338] The terminal 700 includes, but is not limited to, at least part of the components such as a radio frequency unit 701, a network module 702, an audio output unit 703, an input unit 704, a sensor 705, a display unit 706, a user input unit 707, an interface unit 708, a memory 709, and a processor 710.

[0339] Those skilled in the art can understand that the terminal 700 can further include a power supply (such as a battery) for supplying power to each component, and the power supply can be logically connected to the processor 710 through a power management system, so as to realize functions such as power management, discharge management, and power consumption management through the power management system. The terminal structure shown in FIG. 12 does not constitute a limitation on the terminal, and the terminal can include more or fewer components than those shown, or combine certain components, or have different component arrangements, which are not described herein.

[0340] It should be understood that in the embodiments of the present application, the input unit 704 can include a graphics processor 7041 and a microphone 7042, and the graphics processor 7041 processes image data of a still picture or a video obtained by an image capture device (such as a camera) in a video capture mode or an image capture mode. The display unit 706 can include a display panel 7061, which can be configured in the form of a liquid crystal display, an organic light-emitting diode, etc. The user input unit 707 includes at least one of a touch panel 7071 and other input devices 7072. The touch panel 7071 is also called a touch screen. The touch panel 7071 can include two parts of a touch detection device and a touch controller. The other input devices 7072 can include, but are not limited to, a physical keyboard, function keys (such as volume control keys, on-off keys, etc.), a trackball, a mouse, a joystick, and the like, which will not be described here.

[0341] In the embodiments of the present application, after the radio frequency unit 701 receives the downlink data from the network side device, it can be transmitted to the processor 710 for processing. In addition, the radio frequency unit 701 can send uplink data to the network side device. Generally, the radio frequency unit 701 includes, but is not limited to, an antenna, an amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, etc.

[0342] The memory 709 can be used to store software programs or instructions and various data. The memory 709 can mainly include a first storage area storing programs or instructions and a second storage area storing data, wherein the first storage area can store an operating system, application programs or instructions required by at least one function (such as a sound playing function, an image playing function, etc.), and the like. In addition, the memory 709 can include a volatile memory or a non-volatile memory. The non-volatile memory can be a Read-Only Memory (ROM), a Programmable ROM (PROM), an Erasable PROM (EPROM), an Electrically EPROM (EEPROM), or a flash memory. The volatile memory can be a Random Access Memory (RAM), a Static RAM (SRAM), a Dynamic RAM (DRAM), a Synchronous DRAM (SDRAM), a Double Data Rate SDRAM (DDR SDRAM), an Enhanced SDRAM (ESDRAM), a Synch link DRAM (SLDRAM), and a Direct Rambus RAM (DRRAM). The memory 709 in the embodiments of the present application includes but is not limited to these and any other suitable types of memory.

[0343] The processor 710 can include one or more processing units; optionally, the processor 710 integrates an application processor and a modem processor, wherein the application processor mainly processes operations related to an operating system, a user interface, and an application program, and the modem processor mainly processes wireless communication signals, such as a baseband processor. It can be understood that the above-mentioned modem processor can also not be integrated into the processor 710.

[0344] The radio frequency unit 701 is configured to obtain first configuration information from a network side device, the first configuration information being used to configure M first information, the first information being used to indicate at least one of the following: angle information, time delay information, and Doppler shift information, and M is a positive integer.

[0345] The processor 710 is configured to measure N reference signal resources based on the first configuration information to determine first precoding information, and N is a positive integer.

[0346] The embodiment of the present application provides a terminal. The terminal can receive first configuration information from a network side device, obtain M first information through the first configuration information, and the first information is used for indicating at least one of angle information, time delay information and Doppler frequency shift information, that is, the first information is related to sensing. Therefore, the terminal can obtain M first information related to sensing through the first configuration information. Therefore, the terminal measures N reference signal resources based on the first configuration information, that is, the terminal measures N reference signal resources based on M first information related to sensing, and can obtain first precoding information suitable for sensing. Therefore, after the terminal reports the first precoding information, the network side device can accurately determine a precoding matrix suitable for sensing, and performs precoding based on the precoding matrix suitable for sensing when performing sensing subsequently. Therefore, the sensing performance can be improved.

[0347] In some embodiments of the present application, the radio frequency unit 701 is further configured to receive at least one second configuration information from the network side device, the second configuration information is used for configuring the terminal to report precoding information, and indicate at least part of the first precoding information to the network side device according to the at least one second configuration information.

[0348] In some embodiments of the present application, each of the M first information corresponds to at least one precoding information in the first precoding information.

[0349] The radio frequency unit 701 is further configured to report third indication information to the network side device in a case where second information in the M first information meets a preset condition. The preset condition includes at least one of the following: the sensing performance indicators of at least one remaining precoding information corresponding to the second information are all greater than or equal to a third threshold value; the number of sensing performance indicators of the at least one remaining precoding information corresponding to the second information that are greater than or equal to a fourth threshold value exceeds a second number; and the third indication information is used for indicating at least one of the following: the second information, the number of the at least one remaining precoding information corresponding to the second information; and the remaining precoding is the precoding information other than the at least part of the precoding information in the at least one precoding information corresponding to the second information.

[0350] In some embodiments of the present application, the radio frequency unit 701 is further configured to indicate first measurement information to the network side device, and the first measurement information includes at least one of the following: indication information of whether a sensing target is detected; the number of measured sensing targets; parameter estimation results of the detected sensing targets; and spectrum information.

[0351] It can be understood that the implementation processes of the implementation manners mentioned in the embodiment can refer to the related descriptions of the method embodiments and achieve the same or corresponding technical effects. To avoid repetition, details are not described herein.

[0352] The embodiments of the present application also provide a network side device, which comprises a processor and a communication interface, the communication interface is coupled with the processor, and the processor is used to run programs or instructions to realize the steps of the method embodiments shown in FIG. 7 and FIG. 8. The network side device embodiments correspond to the network side device method embodiments described above, and each implementation process and implementation manner of the method embodiments can be applied to the network side device embodiments and can achieve the same technical effects.

[0353] Specifically, the embodiments of the present application also provide a network side device, which can be the precoding information determination apparatus shown in FIG. 10. As shown in FIG. 13, the network side device 800 comprises an antenna 801, a radio frequency device 802, a baseband device 803, a processor 804 and a memory 805. The antenna 801 is connected with the radio frequency device 802. In the uplink direction, the radio frequency device 802 receives information through the antenna 801 and sends the received information to the baseband device 803 for processing. In the downlink direction, the baseband device 803 processes the information to be sent and sends it to the radio frequency device 802, and the radio frequency device 802 processes the received information and sends it out through the antenna 801.

[0354] The method performed by the network side device in the above embodiments can be implemented in the baseband device 803, which comprises a baseband processor.

[0355] The baseband device 803 may, for example, comprise at least one baseband board, and a plurality of chips are arranged on the baseband board, as shown in FIG. 13. One of the chips is, for example, a baseband processor, which is connected with the memory 805 through a bus interface to call the programs in the memory 805 and execute the network device operations shown in the above method embodiments.

[0356] The network side device may, for example, further comprise a network interface 806, which is, for example, a common public radio interface (CPRI).

[0357] Specifically, the network side device 800 of the embodiments of the present application further comprises instructions or programs stored in the memory 805 and executable on the processor 804, the processor 804 calls the instructions or programs in the memory 805 to execute the methods performed by the modules shown in FIG. 10 and achieve the same technical effects. To avoid repetition, the details are not described here.

[0358] Specifically, the embodiment of the present application further provides a network side device. As shown in FIG. 14, the network side device 900 includes a processor 901, a network interface 902 and a memory 903. The network side device can be the precoding information determination apparatus shown in FIG. 10. The network interface 902 is, for example, a common public radio interface (CPRI).

[0359] Specifically, the network side device 900 of the embodiment of the present application further includes instructions or programs stored on the memory 903 and executable on the processor 901, the processor 901 invokes the instructions or programs in the memory 903 to execute the method performed by each module shown in FIG. 10 and achieve the same technical effect. To avoid repetition, details are not described herein.

[0360] The embodiment of the present application further provides a readable storage medium, the readable storage medium stores programs or instructions, the programs or instructions are executed by a processor to implement each process of the precoding information determination method embodiment and achieve the same technical effect. To avoid repetition, details are not described herein.

[0361] The processor is the processor in the terminal in the above embodiment. The readable storage medium includes a computer readable storage medium, such as a computer readable only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk, etc. In some examples, the readable storage medium can be a non-transitory readable storage medium.

[0362] The embodiment of the present application further provides a chip, the chip includes a processor and a communication interface, the communication interface and the processor are coupled, the processor is used to run programs or instructions to implement each process of the precoding information determination method embodiment and achieve the same technical effect. To avoid repetition, details are not described herein.

[0363] It should be understood that the chip mentioned in the embodiment of the present application can also be referred to as a system chip, a system chip, a chip system or a system on chip, etc.

[0364] The embodiment of the present application further provides a computer program / program product, the computer program / program product is stored in a storage medium, the computer program / program product is executed by at least one processor to implement each process of the precoding information determination method embodiment and achieve the same technical effect. To avoid repetition, details are not described herein.

[0365] The embodiment of the present application further provides a wireless communication system, including a terminal and a network side device, the terminal can be used to execute the steps of the precoding information determination method, and the network side device can be used to execute the steps of the precoding information determination method.

[0366] It should be noted that, in the present document, the terms "comprises", "comprising", or any other variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can also include other elements not expressly listed or inherent to such process, method, article, or apparatus. An element proceeded by "comprises... a" does not, without more constraints, exclude the presence of additional identical elements in the process, method, article, or apparatus that comprises the element. Furthermore, it should be noted that the methods and apparatuses of the present embodiments are not limited by the order of the steps or the sequence for performing the steps, as some steps can occur in different orders and / or concurrently with one another; for example, described methods can be performed in an order other than that described, and / or steps can be added, omitted or combined. Furthermore, features described with respect to certain examples can be combined in other examples.

[0367] From the above description of the embodiments, it is apparent that the method of the above-mentioned embodiments can be realized by means of a computer software product and general hardware platform, of course, it can also be realized by hardware. The computer software product is stored in a storage medium (such as ROM, RAM, magnetic disc, optical disc, etc.), and includes a plurality of instructions for making the terminal or network side device execute the method described in each embodiment of the present application.

[0368] The embodiments of the present application are described above in combination with the drawings, but the present application is not limited to the above-mentioned specific embodiments, the above-mentioned specific embodiments are only illustrative, but not restrictive, and those skilled in the art can make many forms of embodiments under the inspiration of the present application without departing from the scope of the present application and the scope protected by the claims.

Claims

1. A method for determining precoding information, comprising: receiving, by a terminal, first configuration information from a network side device, the first configuration information being used to configure M first information, the first information being used to indicate at least one of the following: angle information, time delay information, Doppler shift information, M being a positive integer; measuring, by the terminal, N reference signal resources based on the first configuration information to determine first precoding information, N being a positive integer.

2. The method of claim 1, wherein, Each of the reference signal resources is associated with at least one of the M first information.

3. The method of claim 1 or 2, wherein, The N reference signal resources belong to at least two resource sets, and each of the resource sets is associated with at least one of the M first information.

4. The method of any one of claims 1 to 3, wherein, The method further comprises: receiving, by the terminal, at least one second configuration information from the network side device, the second configuration information being used to configure the terminal to report precoding information; indicating, by the terminal, at least part of the first precoding information to the network side device according to at least one of the second configuration information.

5. The method of claim 4, wherein, The N reference signal resources are associated with at least one of the second configuration information, and each of the second configuration information is associated with at least one of the M first information.

6. The method of claim 4, wherein, The at least part of the precoding information indicates at least one of the following: at least one first spatial domain vector; at least one first port selection information; at least one first spatial domain beam information; at least one first precoding codebook; The first port selection information is used to indicate a port of a reference signal selected by the terminal; the first spatial domain beam information comprises a linear combination of at least one spatial domain basis vector; and the first precoding codebook comprises at least one precoding vector.

7. The method of claim 4, wherein, The precoding type of the at least part of the precoding information comprises at least one of the following: a first precoding type; a second precoding type; The precoding information of the first precoding type is used for sensing; and the precoding information of the second precoding type is used for sensing and communication.

8. The method of claim 4, wherein, Each of the M first information corresponds to at least one precoding information in the first precoding information. The at least part of the precoding information is precoding information in at least one precoding information corresponding to T first information in the M first information, T being a positive integer less than or equal to M.

9. The method of claim 8, wherein, The T first information satisfies at least one of the following: The first information is associated with at least one of the second configuration information; The first information is the first information associated with at least one of the second configuration information, which is activated or triggered by the network side device; The first information is the first information associated with at least one of the second configuration information, which is determined by the terminal; The first information is the first information activated or triggered by the network side device, which is determined by the terminal; The first information is the first information in the M first information, for which a sensing performance index of corresponding at least one precoding information is greater than or equal to a first threshold value. is that a number of perception performance indexes of the corresponding at least one precoding information in the M first information is less than or equal to a second threshold value and does not exceed a first number.

10. The method of any one of claims 4 to 9, wherein, Each of the M first information corresponds to at least one precoding information in the first precoding information. After the terminal indicates at least part of the precoding information in the first precoding information to the network side device according to at least one second configuration information, the method further comprises: In a case where second information in the M first information satisfies a preset condition, the terminal reports third indication information to the network side device; the preset condition comprises at least one of the following: The perception performance indexes of at least one remaining precoding information corresponding to the second information are all greater than or equal to a third threshold value; The number of perception performance indexes of at least one remaining precoding information corresponding to the second information that are greater than or equal to a fourth threshold value exceeds a second number; The third indication information is used for indicating at least one of the following: the second information, the number of at least one remaining precoding information corresponding to the second information. The remaining precoding is the precoding information in the at least one precoding information corresponding to the second information, except for the at least part of the precoding information.

11. The method of any one of claims 1 to 10, wherein, The method further comprises: The terminal indicates first measurement information to the network side device, the first measurement information comprising at least one of the following: Indication information of whether a perception target is detected; The number of measured perception targets; Parameter estimation results of the detected perception targets; Spectrum information.

12. The method of any one of claims 1 to 11, wherein, The first configuration information comprises at least one of the following: First indication information; Second indication information; A first numerical range; The first indication information is used for indicating the index of at least one basis vector in a basis vector set; at least one basis vector is used to represent the M first information; the second indication information is used for indicating the index range of at least one basis vector in a basis vector set; and the first numerical range is used to indicate the value range of the M first information.

13. A precoding information determination method, comprising: A network side device sends first configuration information to a terminal, the first configuration information is used for configuring M first information, the first information is used for indicating at least one of the following: angle information, time delay information, Doppler shift information, and the first configuration information is also used for measuring N reference signal resources to determine first precoding information; Wherein, M and N are positive integers.

14. The method of claim 13, wherein, The method further comprises: The network side device sends at least one second configuration information to the terminal, the second configuration information is used for configuring the terminal to report precoding information; The network side device receives at least part of the precoding information in the first precoding information from the terminal.

15. The method of claim 14, wherein, Each of the M first information corresponds to at least one precoding information in the first precoding information. Wherein, the at least part of the precoding information is the precoding information in the at least one precoding information corresponding to T first information in the M first information, and T is a positive integer less than or equal to M.

16. The method of claim 14 or 15, wherein, The method further comprises: The network side device receives third indication information from the terminal, and the third indication information is used to indicate at least one of the following: the second information, the number of at least one precoding information corresponding to the second information; The second information is information in the M first information that meets a preset condition. The preset condition comprises at least one of the following: The sensing performance indicators of at least one remaining precoding information corresponding to the second information are all greater than or equal to a third threshold value; The number of sensing performance indicators of at least one remaining precoding information corresponding to the second information that are greater than or equal to a fourth threshold value exceeds a second number; The remaining precoding is precoding information in at least one precoding information corresponding to the second information, except for the at least part of precoding information.

17. The method of any one of claims 13 to 16, wherein, The method further comprises: The network side device receives first measurement information from the terminal, and the first measurement information comprises at least one of the following: Indication information of whether a sensing target is detected; The number of measured sensing targets; Parameter estimation results of the detected sensing targets; Spectrum information.

18. A precoding information determination apparatus comprising: A receiving module and a processing module; The receiving module is configured to receive first configuration information from a network side device, and the first configuration information is used to configure M first information, and the first information is used to indicate at least one of the following: angle information, time delay information, and Doppler frequency shift information, and M is a positive integer; The processing module is configured to measure N reference signal resources based on the first configuration information received by the receiving module, to determine first precoding information, and N is a positive integer.

19. The apparatus of claim 18, wherein, Each of the reference signal resources is associated with at least one of the M first information.

20. The apparatus of claim 18 or 19, wherein, The N reference signal resources belong to at least two resource sets, and one resource set is associated with at least one of the M first information.

21. The apparatus of any one of claims 18-20, wherein, The receiving module is further configured to receive at least one second configuration information from the network side device, and the second configuration information is used to configure the precoding information determination device to report precoding information; The precoding information determination device further comprises a sending module; The sending module is further configured to indicate at least part of the first precoding information to the network side device according to at least one second configuration information received by the receiving module.

22. The apparatus of claim 21, wherein, The N reference signal resources are associated with at least one second configuration information, and one second configuration information is associated with at least one of the M first information.

23. The apparatus of claim 21, wherein, The at least part of the precoding information indicates at least one of the following: At least one first spatial domain vector; At least one first port selection information; At least one first spatial domain beam information; At least one first precoding codebook; The first port selection information is used to indicate the port of the reference signal selected by the precoding information determination device; the first spatial domain beam information comprises a linear combination of at least one spatial domain basis vector; and the first precoding codebook comprises at least one precoding vector.

24. The apparatus of claim 21, wherein, The precoding type of the at least part of the precoding information comprises at least one of the following: A first precoding type; A second precoding type; The first precoding information of the first precoding type is used for sensing, and the second precoding information of the second precoding type is used for sensing and communication.

25. The apparatus of claim 21, wherein, Each of the first information in the M first information corresponds to at least one precoding information in the first precoding information. The at least part of the precoding information is precoding information in at least one precoding information corresponding to T first information in the M first information, and T is a positive integer less than or equal to M.

26. The apparatus of claim 25, wherein, The T first information satisfies at least one of the following conditions: The first information is associated with the at least one second configuration information; The first information is the first information associated with the at least one second configuration information, which is activated or triggered by the network side device; The first information is the first information associated with the at least one second configuration information, which is determined by the precoding information determination apparatus; The first information is the first information activated or triggered by the network side device, which is determined by the precoding information determination apparatus; The first information is the first information in the M first information, and the sensing performance indicators of the corresponding at least one precoding information are all greater than or equal to a first threshold value; The first information is the first information in the M first information, and the number of sensing performance indicators of the corresponding at least one precoding information less than or equal to a second threshold value does not exceed a first number.

27. The apparatus of any one of claims 21-26, wherein, Each of the first information in the M first information corresponds to at least one precoding information in the first precoding information. The sending module is further configured to, after indicating the at least part of the precoding information in the first precoding information to the network side device according to the at least one second configuration information, report third indication information to the network side device in a case where second information in the M first information satisfies a preset condition; the preset condition includes at least one of the following conditions: The sensing performance indicators of the at least one remaining precoding information corresponding to the second information are all greater than or equal to a third threshold value; The number of sensing performance indicators of the at least one remaining precoding information corresponding to the second information greater than or equal to a fourth threshold value exceeds a second number; The third indication information is used for indicating at least one of the following: the second information, the number of at least one remaining precoding information corresponding to the second information; The remaining precoding is precoding information in the at least one precoding information corresponding to the second information, except for the at least part of the precoding information.

28. The apparatus of any one of claims 18-27, wherein, The precoding information determination apparatus further comprises a sending module. The sending module is configured to indicate first measurement information to the network side device, and the first measurement information includes at least one of the following: Indication information of whether a sensing target is detected; The number of measured sensing targets; Parameter estimation results of the detected sensing targets; Spectrum information.

29. The apparatus of any one of claims 18-28, wherein, The first configuration information includes at least one of the following: First indication information; Second indication information; First value range; The first indication information is used for indicating indexes of at least one base vector in a base vector set, the at least one base vector is used for representing M first information, the second indication information is used for indicating an index range of the at least one base vector in the base vector set, and the first numerical range is used for indicating a value range of the M first information.

30. A precoding information determining apparatus, the precoding information determining apparatus comprising: The sending module; The sending module is used for sending first configuration information to the terminal, the first configuration information is used for configuring M first information, the first information is used for indicating at least one of angle information, time delay information and Doppler frequency shift information, and the first configuration information is also used for measuring N reference signal resources to determine first precoding information. Wherein, M and N are positive integers.

31. The apparatus of claim 30, wherein, The sending module is also used for sending at least one second configuration information to the terminal, the second configuration information is used for configuring the terminal to report precoding information. The precoding information determination apparatus further includes a receiving module. The receiving module is used for receiving at least part of the first precoding information from the terminal.

32. The apparatus of claim 31, wherein, Each of the M first information corresponds to at least one precoding information in the first precoding information. Wherein, the at least part of the precoding information is precoding information in at least one precoding information corresponding to T first information in the M first information, and T is a positive integer less than or equal to M.

33. The apparatus of claim 31 or 32, wherein, The receiving module is also used for receiving third indication information from the terminal, the third indication information is used for indicating at least one of second information and a number of at least one precoding information corresponding to the second information. Wherein, the second information is information in the M first information satisfying a preset condition. The preset condition includes at least one of the following: The perception performance indicators of at least one remaining precoding information corresponding to the second information are all greater than or equal to a third threshold value; The number of perception performance indicators of at least one remaining precoding information corresponding to the second information that are greater than or equal to a fourth threshold value exceeds a second number; The remaining precoding is precoding information in the at least one precoding information corresponding to the second information, except for the at least part of the precoding information.

34. The apparatus of any one of claims 30-33, wherein, The receiving module is also used for receiving first measurement information from the terminal, the first measurement information includes at least one of the following: Indication information of whether a perception target is detected; A number of measured perception targets; Parameter estimation results of detected perception targets; Spectrum information.

35. A terminal comprising a processor and a memory, the memory storing programs or instructions executable on the processor, the programs or instructions being executed by the processor to implement the steps of the precoding information determination method according to any one of claims 1 to 12.

36. A network side device comprising a processor and a memory, the memory storing programs or instructions executable on the processor, the programs or instructions being executed by the processor to implement the steps of the precoding information determination method according to any one of claims 13 to 17.

37. A readable storage medium, on which a program or instructions are stored, the program or instructions, when executed by a processor, implement the precoding information determination method of any one of claims 1 to 12, or implement the steps of the precoding information determination method of any one of claims 13 to 17.

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