Precoding information determination method and device and related equipment

Abstract

The invention discloses a precoding information determination method and device and related equipment, and belongs to the technical field of communication, and the precoding information determination method comprises the steps that network side equipment sends first configuration information to at least one terminal, the first configuration information is used for configuring M pieces of first information for the at least one terminal, the first information comprises at least one of angle information, time delay information and Doppler frequency shift information; wherein the M pieces of first information and the N pieces of reference signal resources are used for determining precoding information, and both M and N are positive integers.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of communication, and particularly relates to a precoding information determination method and device and related equipment. BACKGROUND

[0002] Currently, in a communication and sensing integrated system, a network side device can respectively send different configurations to a terminal for sensing function (hereinafter referred to as a sensing terminal) and a terminal for communication function (hereinafter referred to as a communication terminal), so that the sensing terminal and the communication terminal can measure a plurality of reference signal resources based on different configurations and different rules to determine different precoding information, and then respectively report the different precoding information to the network side device, so that the network side device can determine different precoding matrices based on the different precoding information.

[0003] However, since the sensing terminal and the communication terminal measure the plurality of reference signal resources based on different configurations and different rules, the precoding information determined by the sensing terminal can be different from the precoding information determined by the communication terminal, for example, the analog beams in the precoding information determined by the sensing terminal are different from the analog beams in the precoding information determined by the communication terminal. Therefore, after the network side device determines different precoding matrices based on the different precoding information, the beams used by the network side device for sensing with the sensing terminal are different from the beams used by the network side device for communicating with the communication terminal, which can cause waste of beam resources. SUMMARY

[0004] Embodiments of the present application provide a precoding information determination method, device and related equipment, which can solve the problem of beam resource waste.

[0005] In a first aspect, a precoding information determination method is provided, which is executed by a network side device, and the method comprises: the network side device sends first configuration information to at least one terminal, the first configuration information is used to configure M first information for the at least one terminal, the first information comprises at least one of the following: angle information, time delay information, Doppler shift information; wherein the M first information and N reference signal resources are used to determine precoding information, and M and N are both positive integers.

[0006] In some embodiments of the present application, each reference signal resource is associated with at least one of the M first information.

[0007] 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.

[0008] In some embodiments of the present application, the method for determining precoding information further comprises: the network-side device sending at least one second configuration information to at least one terminal, the second configuration information being used for configuring the at least one terminal to report precoding information; and the network-side device receiving at least one precoding information from the at least one terminal.

[0009] 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.

[0010] In some embodiments of the present application, the method for determining precoding information further comprises: the network-side device sending at least one second configuration information to at least one terminal, the second configuration information being used for configuring the at least one terminal to report precoding information; and the network-side device receiving at least one precoding information from the at least one terminal.

[0011] In some embodiments of the present application, each reference signal resource is associated with at least one of the M first information.

[0012] 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.

[0013] In some embodiments of the present application, the method for determining precoding information further comprises: the network-side device sending at least one second configuration information to at least one terminal, the second configuration information being used for configuring the at least one terminal to report precoding information; and the network-side device receiving at least one precoding information from the at least one terminal.

[0014] 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.

[0015] In some embodiments of the present application, the method for determining precoding information further comprises: the network-side device sending at least one second configuration information to at least one terminal, the second configuration information being used for configuring the at least one terminal to report precoding information; and the network-side device receiving at least one precoding information from the at least one terminal.

[0016] In some embodiments of the present application, each reference signal resource is associated with at least one of the M first information.

[0017] 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.

[0018] In some embodiments of the present application, the pre-coding information determination method provided by the embodiments of the present application further includes: receiving, by the second terminal, at least one second configuration information from the network side device, the second configuration information being used for configuring the at least one terminal to report the pre-coding information; and sending, by the second terminal, the pre-coding information to the network side device.

[0019] 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.

[0020] In a fourth aspect, a pre-coding information determination apparatus is provided, and the pre-coding information determination apparatus includes a sending module. The sending module is configured to send, to at least one terminal, first configuration information, the first configuration information being used for configuring the at least one terminal with M first information, the first information including at least one of the following: angle information, time delay information, and Doppler frequency shift information; and the M first information and N reference signal resources are used for determining pre-coding information, and M and N are positive integers.

[0021] In some embodiments of the present application, each reference signal resource is associated with at least one of the M first information.

[0022] 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.

[0023] In some embodiments of the present application, the sending module is further configured to send, to the at least one terminal, at least one second configuration information, the second configuration information being used for configuring the at least one terminal to report the pre-coding information. The pre-coding information determination apparatus provided by the embodiments of the present application further includes a receiving module. The receiving module is configured to receive, from the at least one terminal, at least one pre-coding information.

[0024] 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.

[0025] In a fifth aspect, a pre-coding information determination apparatus is provided, which comprises a receiving module and a processing module. The receiving module is configured to receive first configuration information from a network side device, the first configuration information being used to configure M first information for at least one terminal, the at least one terminal comprising the pre-coding information determination apparatus, the pre-coding information determination apparatus being used for at least sensing function, and the first information comprising at least one of angle information, time delay information and Doppler shift information. The processing module is configured to determine pre-coding information based on the M first information configured by the first configuration information received by the receiving module and N reference signal resources, wherein M and N are positive integers.

[0026] In some embodiments of the present application, each reference signal resource is associated with at least one of the M first information.

[0027] 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.

[0028] 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 to configure the at least one terminal to report the pre-coding information. The pre-coding information determination apparatus provided in the embodiments of the present application further comprises a sending module. The sending module is configured to send the pre-coding information to the network side device.

[0029] In some embodiments of the present application, the N reference signal resources are associated with the at least one second configuration information, and one second configuration information is associated with at least one of the M first information.

[0030] In a sixth aspect, a pre-coding information determination apparatus is provided, which comprises a receiving module and a processing module. The receiving module is configured to receive first configuration information from a network side device, the first configuration information being used to configure M first information for at least one terminal, the at least one terminal comprising the pre-coding information determination apparatus, the pre-coding information determination apparatus being used for only communication function, and the first information comprising at least one of angle information, time delay information and Doppler shift information. The processing module is configured to determine pre-coding information based on the M first information configured by the first configuration information and N reference signal resources, wherein M and N are positive integers.

[0031] In some embodiments of the present application, each reference signal resource is associated with at least one of the M first information.

[0032] 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.

[0033] 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 at least one terminal to report the precoding information. The precoding information determination apparatus provided by the embodiments of the present application further comprises a sending module. The sending module is configured to send the precoding information to the network-side device.

[0034] 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.

[0035] In a seventh aspect, a precoding 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, or implement the steps of the method according to the third aspect.

[0036] 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, and the programs or instructions, when executed by the processor, implement the steps of the method according to the first aspect.

[0037] 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 at least one terminal, the first configuration information being used for configuring the at least one terminal with M first information, the first information comprising at least one of the following: angle information, time delay information, and Doppler frequency shift information; wherein the M first information and N reference signal resources are used to determine the precoding information, and M and N are both positive integers.

[0038] In a tenth aspect, a terminal is provided, which comprises a processor and a memory, the memory storing programs or instructions executable on the processor, and the programs or instructions, when executed by the processor, implement the steps of the method according to the second aspect, or implement the steps of the method according to the third aspect.

[0039] Eleventhly, a terminal is provided, including a processor and a communication interface. When the terminal is a first terminal, the communication interface is used to receive first configuration information from a network-side device. This first configuration information is used to configure M pieces of first information for at least one terminal, including the first terminal, which is used for at least sensing functions. The first information includes at least one of the following: angle information, time delay information, and Doppler frequency shift information. The processor is used to determine precoding information based on the M pieces of first information and N reference signal resources; wherein M and N are both positive integers. When the terminal is a second terminal, the communication interface is used to receive first configuration information from a network-side device. This first configuration information is used to configure M pieces of first information for at least one terminal, including the second terminal, which is used only for communication functions. The first information includes at least one of the following: angle information, time delay information, and Doppler frequency shift information. The processor is used to determine precoding information based on the M pieces of first information and N reference signal resources; wherein M and N are both positive integers.

[0040] In a twelfth aspect, a readable storage medium is provided, on which a program or instructions are stored, which, when executed by a processor, implement the steps of the method described in the first aspect, or the steps of the method described in the second aspect, or the steps of the method described in the third aspect.

[0041] In a thirteenth aspect, a wireless communication system is provided, comprising: a first terminal, a second terminal, and a network-side device, wherein the first terminal is configured to perform the steps of the method described in the second aspect, the second terminal is configured to perform the steps of the method described in the third aspect, and the network-side device is configured to perform the steps of the method described in the first aspect.

[0042] In a fourteenth aspect, a chip is provided, the chip including a processor and a communication interface coupled to the processor, the processor being configured to run a program or instructions to implement the steps of the method described in the first aspect, or the steps of the method described in the second aspect, or the steps of the method described in the third aspect.

[0043] In a fifteenth aspect, a computer program / program product is provided, the computer program / program product being stored in a storage medium, the computer program / program product being executed by at least one processor to implement the steps of the method as described in the first aspect, or the steps of the method as described in the second aspect, or the steps of the method as described in the third aspect.

[0044] In this embodiment, the network-side device can send first configuration information to at least one terminal for configuring M first pieces of information for the at least one terminal. The first pieces of information include at least one of the following: angle information, time delay information, and Doppler frequency shift information. Thus, at least one terminal can determine precoding information based on the M first pieces of information and N reference signal resources; M and N are both positive integers. Since the network-side device can send the same first configuration information to at least one terminal, at least one terminal can determine precoding information based on the same M first pieces of information (i.e., at least one of angle information, time delay information, and Doppler frequency shift information) and N reference signal resources. Therefore, the probability that the simulated beams in the precoding information determined by at least one terminal are the same can be increased. Consequently, when the network-side device determines the precoding matrix for at least one terminal, it uses the same simulated beam, meaning that the network-side device can simultaneously serve multiple terminals for sensing and / or communication under the same beam. This improves the utilization rate of beam resources.

[0045] In this embodiment of the application, the first terminal can receive first configuration information from a network-side device for configuring M first information for at least one terminal, the at least one terminal including the first terminal, the first terminal being used for at least sensing functions, the first information including at least one of the following: angle information, time delay information, Doppler frequency shift information; and determine precoding information based on the M first information and N reference signal resources; wherein M and N are both positive integers. Since the first configuration information received by the first terminal is the same as the first configuration information received by other terminals among at least one terminal, at least one terminal can determine the precoding information based on the same M first information (i.e., at least one of angle information, time delay information, and Doppler frequency shift information) and N reference signal resources. Therefore, the probability that the analog beam in the precoding information determined by the first terminal is the same as the analog beam in the precoding information determined by other terminals can be increased. Thus, after at least one terminal reports the determined precoding information to the network-side device, the network-side device can use the same analog beam when determining the precoding matrix for at least one terminal. This allows the analog beam used by the network-side device for providing sensing services to the first terminal to be the same as the analog beam used by the network-side device for providing communication or sensing services to other terminals, thereby improving the utilization rate of beam resources.

[0046] In this embodiment of the application, the second terminal can receive first configuration information from the network-side device for configuring M first information for at least one terminal, the at least one terminal including the second terminal, the second terminal is only used for communication functions, the first information includes at least one of the following: angle information, time delay information, Doppler frequency shift information; and determine precoding information based on the M first information and N reference signal resources; wherein M and N are both positive integers. Since the first configuration information received by the second terminal is the same as the first configuration information received by the other terminals among at least one terminal, at least one terminal can determine the precoding information based on the same M first information (i.e., at least one of angle information, time delay information, and Doppler frequency shift information) and N reference signal resources. Therefore, the probability that the analog beam in the precoding information determined by the second terminal is the same as the analog beam in the precoding information determined by other terminals can be increased. Thus, after at least one terminal reports the determined precoding information to the network-side device, the network-side device can use the same analog beam when determining the precoding matrix for at least one terminal. This allows the analog beam used by the network-side device to provide communication services to the second terminal to be the same as the analog beam used by the network-side device to provide communication services or sensing services to other terminals, thereby improving the utilization rate of beam resources. Attached Figure Description

[0047] Figure 1 This is a schematic diagram of the sensing link in the integrated communication and sensing technology.

[0048] Figure 2A This is a schematic diagram of the sub-connection HBF architecture;

[0049] Figure 2B This is a schematic diagram of the fully connected HBF architecture;

[0050] Figure 3 This is a block diagram of a wireless communication system provided in an embodiment of this application;

[0051] Figure 4 This is one of the flowcharts illustrating the precoding information determination method provided in the embodiments of this application;

[0052] Figure 5 This is one of the schematic diagrams illustrating the transmission of reference signal resources in the resource set of the precoding information determination method provided in this application embodiment;

[0053] Figure 6 This is the second schematic diagram of the transmission of reference signal resources in the resource set of the precoding information determination method provided in the embodiments of this application;

[0054] Figure 7 This is a second flowchart illustrating the method for determining precoding information provided in the embodiments of this application;

[0055] Figure 8 This is the third flowchart illustrating the precoding information determination method provided in the embodiments of this application;

[0056] Figure 9A This is one of the information diagrams of the first information in the precoding information determination method provided in the embodiments of this application;

[0057] Figure 9B This is the second schematic diagram of the first information in the precoding information determination method provided in the embodiments of this application;

[0058] Figure 10 This is the fourth flowchart illustrating the precoding information determination method provided in the embodiments of this application;

[0059] Figure 11 This is the fifth flowchart illustrating the precoding information determination method provided in the embodiments of this application;

[0060] Figure 12 This is the sixth flowchart illustrating the precoding information determination method provided in the embodiments of this application;

[0061] Figure 13 This is one of the structural schematic diagrams of the precoding information determination device provided in the embodiments of this application;

[0062] Figure 14 This is a second schematic diagram of the precoding information determination device provided in the embodiments of this application;

[0063] Figure 15 This is the third schematic diagram of the precoding information determination device provided in the embodiments of this application;

[0064] Figure 16 This is a schematic diagram of the hardware structure of the communication device provided in the embodiments of this application;

[0065] Figure 17 This is a schematic diagram of the hardware structure of the terminal provided in the embodiments of this application;

[0066] Figure 18 This is one of the hardware structure diagrams of the network-side device provided in the embodiments of this application;

[0067] Figure 19 This is the second schematic diagram of the hardware structure of the network-side device provided in the embodiments of this application. Detailed Implementation

[0068] The technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application are within the scope of protection of this application.

[0069] The following will explain the technical terms used in the embodiments of this application.

[0070] 1. Integrated communication and sensing

[0071] Future mobile communication systems (such as Beyond Fifth-Generation (B5G) or 6th Generation (6G) systems) will possess sensing capabilities in addition to communication capabilities. Sensing capabilities allow one or more devices to perceive information such as the location, distance, and speed of target objects through the transmission and reception of wireless signals, or to detect, track, identify, and image target objects, events, or environments. With the deployment of small base stations with high-frequency, high-bandwidth capabilities such as millimeter waves and terahertz waves in 6G networks, the resolution of sensing will be significantly improved compared to centimeter waves, enabling 6G networks to provide more refined sensing services. Typical sensing functions and application scenarios are shown in Table 1.

[0072] Table 1

[0073]

[0074] Communication and sensing integration refers to the integrated design of communication and sensing functions within the same system through spectrum sharing and hardware sharing. While transmitting information, the system can sense information such as location, distance, and speed, and detect, track, and identify target devices or events. The communication system and the sensing system complement each other, thereby improving overall performance and bringing a better service experience.

[0075] The integration of communication and radar is a typical application of communication-sensing integration (communication-sensing fusion). In the past, radar systems and communication systems were strictly distinguished due to different research objects and focuses, and in most scenarios, the two systems were studied independently. In fact, radar and communication systems are both typical methods of information transmission, acquisition, processing, and exchange, and they share many similarities in terms of working principles, system architecture, and frequency bands. The design of integrated communication and radar systems is highly feasible, mainly in the following aspects: First, both communication and sensing systems are based on electromagnetic wave theory, using the transmission and reception of electromagnetic waves to acquire and transmit information; second, both communication and sensing systems have structures such as antennas, transmitters, receivers, and signal processors, resulting in significant overlap in hardware resources; with technological advancements, their operating frequency bands also increasingly overlap; furthermore, they share similarities in key technologies such as signal modulation and reception detection, and waveform design. The integration of communication and radar systems can bring many advantages, such as cost savings, size reduction, power consumption reduction, improved spectral efficiency, and reduced mutual interference, thereby improving the overall system performance.

[0076] Based on the different sensing signal transmitting and receiving nodes, sensing links are divided into the following six types, such as... Figure 1 As shown. It is worth noting that, Figure 1 Each sensing link in the example uses one sending node and one receiving node. In actual systems, different sensing links can be selected according to different sensing requirements. Each sensing link can have one or more sending nodes and receiving nodes, and the actual sensing system can include a variety of different sensing links. Figure 1 The objects of perception in the example are people and cars; in reality, the objects of perception in the actual system will be much more diverse.

[0077] 1) Network-side equipment (e.g., base stations) conduct self-sensing. In this method, the base station sends sensing signals and obtains the sensing results by receiving the echo of these signals.

[0078] 2) Inter-base station air interface sensing. At this time, base station 2 receives the sensing signal sent by base station 1 and obtains the sensing result.

[0079] 3) Uplink air interface sensing. At this time, the base station receives the sensing signal sent by the terminal and obtains the sensing result.

[0080] 4) Downlink air interface sensing. At this time, the terminal receives the sensing signal sent by the base station and obtains the sensing result.

[0081] 5) Terminal self-transmitting and receiving sensing. In this case, the terminal sends a sensing signal and obtains the sensing result by receiving the echo of the sensing signal.

[0082] 6) Inter-terminal side-link sensing. For example, terminal 2 receives the sensing signal sent by terminal 1 and obtains the sensing result.

[0083] 2. Multi-Input Multi-Output (MIMO) Radar

[0084] MIMO radar utilizes waveform diversity and virtual array characteristics to achieve higher detection / estimation resolution, a higher maximum number of identifiable targets, and better clutter suppression compared to phase arrays.

[0085] The principle of a MIMO radar virtual array is as follows. Consider a MIMO radar with X total transmitting antennas and Y receiving antennas. Assume the transmitted signals from each transmitting antenna are orthogonal, so each receiving antenna can distinguish X signals. Since the phase of the response signal is determined by the positions of the transmitting and receiving antennas, X*Y phase-differentiated response signals can be obtained, which are completely equivalent to the response signal obtained from a single array with X*Y antennas. Therefore, by reasonably setting the positions of the transmitting and / or receiving arrays, an array containing X*Y non-overlapping virtual antennas can be constructed using only X+Y physical antennas. Because virtual arrays often form larger array apertures, better angular resolution can be obtained; X and Y are both positive integers.

[0086] Furthermore, by designing the transmission precoding, the transmitted energy can be focused within a given angular range, thereby improving the signal-to-noise ratio (SNR) of the response signal and thus enhancing the estimation performance of the sensing. Specifically, this involves designing the precoding matrix C to form Z beams for transmitting Z orthogonal signals, ensuring uniform beam energy within a given angular region and minimizing energy outside that region; Z is a positive integer.

[0087] 3. Mixed analog-digital precoding

[0088] Currently, the number of idle frequency bands in mobile communication networks is decreasing, and there is a growing trend towards higher frequency bands, such as the millimeter wave (mmWave) bands driven by 5G New Radio (NR). These bands have abundant available resources. However, higher frequencies mean greater transmission loss, so larger antenna arrays are typically used to form shaped beams with higher gain to overcome propagation loss and ensure system coverage. Meanwhile, considering factors such as hardware complexity, cost, and power consumption, the digital beamforming (DBF) method used in lower frequency bands cannot be adopted. Instead, hybrid beamforming (HBF) methods combining analog beams and digital ports are commonly used. Figure 2A and Figure 2B As shown, in the HBF architecture, each antenna has an independent RF link channel, but multiple antennas share a digital link channel. However, for digital precoding, each antenna has an independent digital link channel. Figure 2A and Figure 2B Two common HBF architectures are shown, one of which is Figure 2A The sub-connection architecture shown means that the array is divided into multiple sub-arrays, and each sub-array is connected to only one digital channel; another is... Figure 2B The fully connected architecture shown means that each antenna is connected to all digital channels. The signals from the digital channels are superimposed after passing through phase shifters and then input to the RF link channels. However, it should be noted that the HBF architecture is not limited to the two architectures mentioned above. In HBF, the signal transmitted by each antenna is generally phase-shifted to form an analog beam, thereby achieving analog beamforming. Due to the limitations of device capabilities, analog beamforming is generally performed across the entire bandwidth, unlike digital beamforming where each subband can be independently beamformed. Therefore, analog beams are multiplexed using time-division multiplexing.

[0089] For unicast links between network-side devices (such as base stations) and terminals, the corresponding communication link can only achieve good performance when the transmit and receive beams are aligned. The process of aligning transmit and receive beams between the base station and the terminal is called beam management in the NR standard.

[0090] Downlink beam alignment can typically be achieved through the following three processes:

[0091] Firstly, coarse pairing of downlink transmit and receive beams: a periodic CSI-RS resource set containing multiple Channel State Information-Reference Signals (CSI-RS) can be configured, with repetition configured as "off"; or multiple CSI-RS resource sets can be configured, with each repetition configured as "on".

[0092] It should be noted that repetition of "off" means that CSI-RS in a resource set may use different transmit beams; while repetition of "on" means that CSI-RS in a resource set use the same transmit beam.

[0093] Secondly, fine-tuning of downlink transmission waveforms on the network-side equipment side: It is possible to configure a CSI-RS resource set containing multiple CSI-RS, with repetition configured as "off" or no repetition configured;

[0094] Third, fine-tuning of the downlink receiving beam on the terminal side: a CSI-RS resource set can be configured, with each repetition configured as "on".

[0095] Furthermore, to support mixed analog-digital precoding, in the existing NR protocol, a base station can configure up to eight CSI-RS resources for channel measurement within a single CSI-ReportConfig. These CSI-RS resources can correspond to different analog beams. When reporting, the terminal selects one CSI-RS resource and reports its identifier (equivalent to feedback of the analog beam direction) and the corresponding CSI. The CSI includes the Precoding Matrix Indicator (PMI), Rank Indicator (RI), and Channel Quality Indicator (CQI). The reported CSI will subsequently be used by network-side equipment for data channel transmission.

[0096] In the future, when facing frequency bands such as U6G (6425-7125 MHz) or FR3 (7.125 to 24.25 GHz), although path loss will be overcome using a hybrid analog-digital precoding architecture, the path loss is less significant than in millimeter-wave bands. Furthermore, with the continuous development of array technology, the number of digital channels may increase significantly, for example, from the current maximum of 32 ports supported by NR to 128 ports. This means the analog beamwidth may be wider than that of millimeter-wave bands. In this scenario, the terminal may be covered by multiple analog beams. Since different analog beams can only be multiplexed using time-division multiplexing, if the terminal only selects one CSI-RS resource to report its identifier (CSI-RS Resource Indicator, CRI) and corresponding CSI, the number of users that can be multiplexed under each beam will decrease, thus affecting system performance. Here's an example to illustrate: Terminal 1 can be covered by analog beam 1 and analog beam 2, where analog beam 1 is optimal for terminal 1. Meanwhile, terminal 2 can be covered by analog beam 2 and analog beam 3, where analog beam 2 is optimal for terminal 2. If reported according to the existing protocol, the analog beam in the precoding information reported by terminal 1 will be analog beam 1, and the analog beam in the precoding information reported by terminal 2 will be analog beam 2. For network-side devices, the two cannot reuse their spatial domains.

[0097] 4. Other terms

[0098] The terms "first," "second," etc., used in this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such terms can be used interchangeably where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first" and "second" are generally of the same class, not limited in number; for example, the first object can be one or more. Furthermore, "or" in this application indicates at least one of the connected objects. For example, the scope of protection for "A or B" covers at least three scenarios: Scenario 1: including A but not B; Scenario 2: including B but not A; Scenario 3: including both A and B. In addition, the terms "A and / or B," "at least one of A and B," and "at least one of A or B" also cover at least the above three scenarios. The character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0099] The term "instruction" in this application can be either a direct instruction (or explicit instruction) or an indirect instruction (or implicit instruction). A direct instruction can be understood as one in which the sender explicitly informs the receiver of specific information, the operation to be performed, or the requested result, etc., in the instruction sent. An indirect instruction can be understood as one in which the receiver determines the corresponding information based on the instruction sent by the sender, or makes a judgment and determines the operation to be performed or the requested result, etc., based on the judgment result.

[0100] It is worth noting that the technologies described in this application are not limited to Long Term Evolution (LTE) / LTE-Advanced (LTE-A) systems, 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 this application are often used interchangeably, and the described technologies can be used with the systems and radio technologies mentioned above, as well as with other systems and radio technologies. The following description describes New Radio (NR) systems for illustrative purposes, and NR terminology is used in most of the following description; however, these technologies can also be applied to systems other than NR systems, such as 6th generation (6G) radio systems. th Generation 6G communication system.

[0101] Figure 3This diagram illustrates a block diagram of a wireless communication system applicable to embodiments of this application. The wireless communication system includes a terminal 11 and a network-side device 12. The terminal 11 can be a mobile phone, tablet computer, laptop computer, notebook computer, personal digital assistant (PDA), handheld computer, netbook, ultra-mobile personal computer (UMPC), mobile internet device (MID), augmented reality (AR), virtual reality (VR) device, robot, wearable device, flight vehicle, vehicle user equipment (VUE), shipboard equipment, pedestrian user equipment (PUE), smart home devices (home appliances with wireless communication capabilities, such as refrigerators, televisions, washing machines, or furniture), game consoles, personal computers (PCs), ATMs, or self-service machines, etc. Wearable devices include: smartwatches, smart bracelets, smart headphones, smart glasses, smart jewelry (smart bracelets, smart chains, smart rings, smart necklaces, smart anklets, smart anklets, etc.), smart wristbands, smart clothing, etc. Among these, in-vehicle devices can also be referred to as in-vehicle terminals, in-vehicle controllers, in-vehicle modules, in-vehicle components, in-vehicle chips, or in-vehicle units, etc. It should be noted that the specific type of terminal 11 is not limited in this application embodiment. Network-side equipment 12 may include access network equipment or core network equipment, wherein access network equipment may also be referred to as Radio Access Network (RAN) equipment, radio access network function, or radio access network unit. Access network equipment may include base stations, Wireless Local Area Network (WLAN) access points (AS), or Wireless Fidelity (WiFi) nodes, etc.In this context, a base station may be referred to as a Node B (NB), Evolved Node B (eNB), Next Generation Node B (gNB), New Radio Node B (NRNode B), Access Point, Relay Base Station (RBS), Serving Base Station (SBS), Base Transceiver Station (BTS), Radio Base Station, Radio Transceiver, Basic Service Set (BSS), Extended Service Set (ESS), Home Node B (HNB), Home Evolved Node B, Transmit / Receive Point (TRP), or any other suitable term in the relevant field, as long as the same technical effect is achieved. The base station is not limited to any specific technical terminology. It should be noted that in this application embodiment, only a base station in an NR system is used as an example for introduction, and the specific type of base station is not limited.

[0102] Core network equipment, also known as core network nodes, core network functions, or core network elements, includes, but is not limited to, at least one of the following: Mobility Management Entity (MME), Access and Mobility Management Function (AMF), Session Management Function (SMF), User Plane Function (UPF), Policy Control Function (PCF), Policy and Charging Rules Function (PCRF), Edge Application Server Discovery Function (EASDF), Unified Data Management (UDM), Unified Data Repository (UDR), Home Subscriber Server (HSS), Centralized Network Configuration (CNC), Network Repository Function (NRF), Network Exposure Function (NEF), and Local NEF. The core network equipment (NEF, or L-NEF) includes the following functions: Binding Support Function (BSF), Application Function (AF), Location Management Function (LMF), Gateway Mobile Location Centre (GMLC), and Network Data Analytics Function (NWDAF). It should be noted that this application only uses core network equipment in the NR system as an example and does not limit the specific type of core network equipment. If the name of the core network equipment mentioned in this application changes in subsequent protocol versions (e.g., 6G), it will still be within the scope of protection of this application.

[0103] Optionally, the core network equipment can be implemented by one or more functional modules in a single device, or by multiple devices working together; this application does not specifically limit this. It is understood that the aforementioned functional modules can be network elements in hardware devices, software functional modules running on dedicated hardware, or virtualized functional modules instantiated on a platform (e.g., a cloud platform).

[0104] The precoding information determination method, apparatus, and related equipment provided in this application will be described in detail below with reference to the accompanying drawings and through some embodiments and application scenarios.

[0105] Currently, in integrated communication and sensing systems, the sensing process also requires appropriate sensing analog beams and sensing digital precoding. In related technologies, network-side equipment can send different configurations to terminals used for sensing (hereinafter referred to as sensing terminals) and terminals used for communication (hereinafter referred to as communication terminals). This allows the sensing and communication terminals to measure multiple reference signal resources using different rules based on these configurations to determine different precoding information. They then report this different precoding information to the network-side equipment, enabling the network-side equipment to determine different precoding matrices based on this information. However, because the sensing and communication terminals measure multiple reference signal resources using different configurations and rules, the precoding information determined by the sensing terminal may differ from that determined by the communication terminal. For example, the analog beams in the precoding information determined by the sensing terminal may differ from those determined by the communication terminal. However, in future systems, the analog beam may be wider, and the terminal may be covered by multiple beams. In the above method, the analog beam in the precoding information determined by the sensing terminal is different from the analog beam in the precoding information determined by the communication terminal. At this time, it may happen that both the sensing terminal and the communication terminal are covered by analog beam 1, while the analog beam in the precoding information determined by the sensing terminal is analog beam 2, and the analog beam in the precoding information determined by the communication terminal is analog beam 3. That is, the sensing terminal cannot perform beam multiplexing when sensing and the communication terminal are communicating. But in fact, the sensing terminal can perform beam multiplexing when sensing and the communication terminal are communicating. Therefore, it will lead to a waste of beam resources.

[0106] However, in this embodiment, the network-side device can send first configuration information to at least one terminal for configuring M first pieces of information for at least one terminal. This first information includes at least one of the following: angle information, time delay information, and Doppler frequency shift information. Thus, at least one terminal can determine precoding information based on the M first pieces of information and N reference signal resources; M and N are both positive integers. Since the network-side device can send the same first configuration information to at least one terminal, at least one terminal can determine precoding information based on the same M first pieces of information (i.e., at least one of angle information, time delay information, and Doppler frequency shift information) and N reference signal resources. Therefore, the probability that the simulated beams in the precoding information determined by at least one terminal are the same can be increased. Consequently, when the network-side device determines the precoding matrix for at least one terminal, it uses the same simulated beam, meaning that the network-side device can simultaneously serve multiple terminals for sensing and / or communication under the same beam. This improves the utilization rate of beam resources.

[0107] The precoding information determination method provided in this application can be executed by a precoding information determination device, a terminal, a functional module or entity within a terminal, or a functional module or entity within a network-side device. This application uses the execution of the precoding information determination method by a terminal or a network-side device as an example to illustrate the precoding information determination method provided in this application.

[0108] Figure 4 A flowchart illustrating a precoding information determination method provided in an embodiment of this application is shown. Figure 4 As shown, a precoding information determination method provided in this application embodiment may include the following step 101.

[0109] Step 101: The network-side device sends first configuration information to at least one terminal.

[0110] In some embodiments of this application, the network-side equipment may include at least one of the following: access network equipment and core network equipment. Specifically, the access network equipment may be a base station, and the core network equipment may be a Sensing Function (SF), an Access and Mobility Management Function (AMF), or a sensing application server in the core network.

[0111] Among them, the sensing function network element, also known as the sensing network element or sensing network function, can be located on the access network side or the core network side. It refers to the network node in the core network and / or access network responsible for at least one of the following functions: sensing request processing, sensing resource scheduling, sensing information interaction, and sensing data processing. It can be an upgrade based on the AMF or LMF in the 5G network, or it can be other network nodes or newly defined network nodes. Specifically, the functional characteristics of the sensing function network element can include at least one of the following:

[0112] Information is exchanged with wireless signal transmitting equipment and / or wireless signal measuring equipment (including the target terminal or the serving base station of the target terminal or the base station associated with the target area), wherein the information includes sensing processing requests, sensing capabilities, sensing auxiliary data, sensing measurement type, sensing resource configuration information, etc., in order to obtain the value of the target sensing result or sensing measurement (uplink measurement or downlink measurement) sent by the wireless signal measuring equipment; wherein, the wireless signal can also be referred to as the sensing signal.

[0113] The sensing method used is determined based on factors such as the type of sensing service, the information of sensing service consumers, the required Quality of Service (QoS) requirements, the sensing capabilities of the wireless signal transmitting equipment, and the sensing capabilities of the wireless signal measuring equipment. The sensing method may include: base station A transmitting and base station B receiving, or base station transmitting and terminal receiving, or base station A transmitting and receiving, or terminal transmitting and base station receiving, or terminal transmitting and receiving, or terminal A transmitting and terminal B receiving, etc.

[0114] The sensing equipment serving the sensing service is determined based on factors such as the type of sensing service, information about the sensing service consumers, the required sensing QoS requirements, the sensing capabilities of the wireless signal transmitting equipment, and the sensing capabilities of the wireless signal measuring equipment. The sensing equipment includes wireless signal transmitting equipment and / or wireless signal measuring equipment.

[0115] The overall coordination and scheduling of resources required for managing sensing services, such as the corresponding configuration of sensing resources for base stations and / or terminals;

[0116] The values ​​of the sensed measurements are processed or calculated to obtain the sensing results. Further, the sensing results are verified, and the sensing accuracy is estimated.

[0117] In some embodiments of this application, the at least one terminal may include a sensing terminal (e.g., the first terminal in the following embodiments) and a communication terminal (e.g., the second terminal in the following embodiments), wherein the sensing terminal is used for at least sensing functions, and the communication terminal is used only for communication functions.

[0118] In this embodiment of the application, the first configuration information is used to configure M first information for at least one terminal. The first information includes at least one of the following: angle information, time delay information, and Doppler frequency shift information. The M first information and N reference signal resources are used to determine the precoding information, and M and N are both positive integers.

[0119] In some embodiments of this application, the aforementioned first information may be referred to as sensing area information, sensing range information, measurement range information, or measurement area information, etc. Of course, the first information may also be referred to as other information, and this application embodiment does not limit this.

[0120] In some embodiments of this application, the aforementioned angle information may specifically be an angle value.

[0121] In some embodiments of this application, the aforementioned angle information may include at least one of the following: azimuth information and pitch angle information. Of course, the angle information may also include other information, and this application does not limit this aspect.

[0122] In some embodiments of this application, the aforementioned delay information may specifically be a delay value or a delay range.

[0123] It should be noted that, in some embodiments, due to timing deviations between network-side devices and terminals, the above-mentioned latency range is relative to the strongest latency path or the first-arrival latency path observed by the terminal, where the first-arrival latency path is the first latency path whose capability is greater than a certain threshold.

[0124] In some embodiments of this application, the aforementioned Doppler frequency shift information may specifically be the Doppler frequency shift amount.

[0125] In some embodiments of this application, the aforementioned reference signal resources are used to transmit a first reference signal. This first reference signal may include at least one of the following: a Channel State Information-Reference Signal (CSI-RS), a Demodulation Reference Signal (DMRS), a Synchronization Signal Block (SSB), or other reference signals used in communication systems; it may also be a Positioning Reference Signal (PRS), or a reference signal specifically designed for sensing functions. Of course, the first reference signal may also be other reference signals, and this application does not limit this to any particular type.

[0126] The first reference signal can be periodic, semi-continuous, or aperiodic.

[0127] In some embodiments of this application, the aforementioned N reference signal resources may be indicated by the network-side device through reference signal resource configuration; or, they may be indicated by the network-side device through reporting configuration (e.g., the second configuration information in the embodiments below). This reporting configuration is used to configure the terminal to report precoding information. This reporting configuration may be CSI-ReportConfig.

[0128] In some embodiments of this application, the N reference signal resources satisfy at least one of the following:

[0129] The N reference signal resources are periodic resources;

[0130] N reference signal resources belong to at least two resource sets.

[0131] In some embodiments of this application, N can be a positive integer greater than 1. It is understood that since Doppler measurement requires reference signal resources corresponding to multiple different transmission time-domain locations, N needs to be a positive integer greater than 1 in order to measure Doppler frequency shift information.

[0132] In some embodiments of this application, when the N reference signal resources are periodic resources, the reference signal resources corresponding to different transmission time domain positions of the same periodic resource can be used for Doppler measurement; or, the reference signal resources corresponding to different transmission time domain positions of the same periodic resource can correspond to different downlink spatial transmission filters.

[0133] In some embodiments of this application, the resource set may include at least one of the following: resource grouping and reference signal resource burst set. The above at least two resource sets may be periodic resource sets, semi-periodic resource sets, or semi-persistent resource sets.

[0134] The aforementioned resource group can be a reference signal resource set, such as the NZP CSI-RS resource set, or a reference signal resource group, such as a group within the NZP CSI-RS resource set, or a reference signal resource pair.

[0135] In some embodiments of this application, when N reference signal resources belong to at least two resource sets, the downlink spatial transmission filters of reference signal resources with different time-domain resources are the same within the same resource set.

[0136] Reference signal resources within the same resource set can be used for Doppler measurements.

[0137] For example, assuming the resource set is a resource group, if N reference signal resources belong to at least two resource groups, the reference signal resources within the same resource group can be used for Doppler measurements.

[0138] For example, assuming the resource set is a burst set of reference signal resources, then if N reference signal resources belong to at least two burst sets of reference signal resources, the reference signal resources within the same burst set of reference signal resources can be used for Doppler measurements.

[0139] Thus, since the embodiments of this application specify the conditions that reference signal resources within the same resource set must meet when N reference signal resources belong to at least two resource sets, the terminal can perform Doppler measurements based on the reference signal resources in each resource set to obtain accurate measurement results, thereby obtaining accurate precoded information based on the measurement results.

[0140] In some embodiments of this application, when N reference signal resources belong to at least two resource sets, reference signal resources with the same first sequence number in different resource sets within the at least two resource sets can be used for Doppler measurements. Here, the first sequence number can be a relative sequence number or a transmission sequence number, and the relative sequence number can be understood as the sequence number within the resource set.

[0141] For example, assuming the resource set is a resource group, if N reference signal resources belong to at least two resource groups, reference signal resources with the same relative index (i.e., the same index within each resource group, such as the second reference signal resource in different resource groups) can be used for Doppler measurements.

[0142] For example, assuming the resource set is a burst set of reference signal resources, if N reference signal resources belong to at least two burst sets of reference signal resources, reference signal resources with the same transmission sequence number in different burst sets of reference signal resources can be used for Doppler measurement.

[0143] For example, if at least two reference signal resource burst sets include reference signal resource burst set 1 and reference signal resource burst set 2, then as follows: Figure 5 As shown, the reference signal resources corresponding to the second transmission time domain position within reference signal resource burst set 1 and reference signal resource resources corresponding to the second transmission time domain position within reference signal resource burst set 2 can be used for Doppler measurements. It should be noted that... Figure 5 In the diagram, a square is used to represent a transmission time domain location.

[0144] In some embodiments of this application, when N reference signal resources belong to at least two resource sets, for any one resource set, the resource set includes reference signal resources corresponding to different transmission time domain positions.

[0145] In one example, the reference signal resources corresponding to different transmission time-domain positions in any given resource set can be uniformly distributed in the time domain. In this case, the network-side device can configure the number of reference signal resources in any given resource set and the transmission time-domain position interval between adjacent reference signal resources to configure the given resource set.

[0146] For example, suppose N reference signal resources belong to at least two reference signal burst sets. For any given reference signal burst set, this set includes reference signal resources corresponding to different transmission time-domain locations, such as reference signal resource 1, reference signal resource 2, reference signal resource 3, and reference signal resource 4. Figure 6 As shown, reference signal resource 1 corresponds to the first time unit, reference signal resource 2 corresponds to the fourth time unit, reference signal resource 3 corresponds to the seventh time unit, and reference signal resource 4 corresponds to the tenth time unit. That is, reference signal resources 1, 2, 3, and 4 can be uniformly distributed in the time domain. It should be noted that... Figure 6 The diagram uses a square to represent a time unit, which can be any one of a symbol, time slot, subframe, or frame, or multiple symbols, multiple time slots, etc.

[0147] In another example, the reference signal resources corresponding to different transmission time-domain positions in any given resource set may be non-uniformly distributed in the time domain. In this case, the network-side device can use a bitmap to indicate the transmission time-domain position corresponding to each reference signal resource. Each bit in the bitmap represents a transmission time unit, which can be one or more symbols, one or more time slots, or one frame, etc.

[0148] Optionally, if each bit in the bitmap represents a transmission time unit containing multiple symbols, then the transmission time-domain position within a time unit corresponding to each reference signal resource can be indicated by the network-side device, determined by protocol agreement, or by default. For example, by default, the transmission time-domain position corresponding to each reference signal resource can be the first symbol within each time unit. It should be noted that the above transmission time-domain position may contain multiple symbols.

[0149] Thus, since the specific conditions that the N reference signal resources need to meet are specified in the embodiments of this application, the terminal can determine the N suitable reference signal resources from the M reference signal resources associated with the first information. Therefore, the terminal can accurately determine the precoding information.

[0150] In some embodiments of this application, when the second information includes Doppler frequency shift information, the Doppler measurement-related parameters corresponding to the second information satisfy at least one of the following:

[0151] Related to the resource configuration information of the reference signal resources in the first resource set;

[0152] Resource configuration information related to reference signal resources with the same first sequence number in at least two first resource sets.

[0153] In this embodiment of the application, the second information is any one of the M first information; the first resource set is the resource set associated with the second information.

[0154] It is understood that the second information is associated with at least one first resource set, and the Doppler measurement related parameters corresponding to the second information can be related to the resource configuration information of the reference signal resource in any of the at least one first resource set.

[0155] In some embodiments of this application, the first sequence number can be a relative sequence number or a transmission sequence number, where the relative sequence number can be understood as a sequence number in the resource set.

[0156] In some embodiments of this application, the aforementioned Doppler measurement-related parameters may include at least one of the following: minimum resolvable Doppler frequency shift and maximum Doppler frequency shift. Of course, these Doppler measurement-related parameters may also include other parameters, and this application does not limit this.

[0157] In some embodiments of this application, the above-mentioned resource configuration information may include at least one of the following: the maximum time interval of the transmission time domain position corresponding to the reference signal resource, and the minimum time interval of the transmission time domain position corresponding to the reference signal resource.

[0158] For example, assuming the resource set is a resource group, the minimum resolvable Doppler frequency shift corresponding to the second information can be related to the maximum time interval of the transmission time domain position corresponding to the reference signal resource in the resource group to which the first reference signal resource belongs. Alternatively, the maximum resolvable Doppler frequency shift corresponding to the second information can be related to the minimum time interval of the transmission time domain position corresponding to the reference signal resource in the resource group to which the first reference signal resource belongs.

[0159] For example, assuming the resource set is a burst set of reference signal resources, the minimum resolvable Doppler frequency shift corresponding to the second information can be related to the maximum time interval of the transmission time domain position corresponding to the reference signal resource in the burst set to which the first reference signal resource belongs. Alternatively, the maximum resolvable Doppler frequency shift corresponding to the second information can be related to the minimum time interval of the transmission time domain position corresponding to the reference signal resource in the burst set to which the first reference signal resource belongs.

[0160] For example, assuming the resource set is a resource group, the minimum resolvable Doppler frequency shift corresponding to the second information can be related to the maximum time interval between the transmission time domain positions corresponding to multiple reference signal resources (i.e., reference signal resources in at least two resource groups with the same first sequence number as the first reference signal resource). Alternatively, the maximum resolvable Doppler frequency shift corresponding to the second information can be related to the minimum time interval between the transmission time domain positions corresponding to multiple reference signal resources (i.e., reference signal resources in at least two resource groups with the same first sequence number as the first reference signal resource).

[0161] For example, assuming the resource set is a burst set of reference signal resources, the minimum resolvable Doppler frequency shift corresponding to the second information can be related to the maximum time interval between the transmission time domain positions corresponding to multiple reference signal resources (i.e., at least two reference signal resources in the burst set that have the same first sequence number as the first reference signal resource). Alternatively, the maximum resolvable Doppler frequency shift corresponding to the second information can be related to the minimum time interval between the transmission time domain positions corresponding to multiple reference signal resources (i.e., at least two reference signal resources in the burst set that have the same first sequence number as the first reference signal resource).

[0162] The first sequence number mentioned above can be a relative sequence number or a sending sequence number. The relative sequence number can be understood as the sequence number in the resource set.

[0163] Thus, it can be seen that, since the embodiments of this application specify the conditions that the Doppler measurement-related parameters corresponding to the second information must meet when the second information includes Doppler frequency shift information, the terminal can accurately determine the Doppler measurement-related parameters based on these conditions, so as to accurately perform Doppler measurement on the second information based on the Doppler measurement-related parameters, thereby obtaining accurate measurement results, and then obtaining accurate pre-coded information based on the measurement results.

[0164] In some embodiments of this application, M first pieces of information are associated with N reference signal resources.

[0165] In some embodiments of this application, the above-mentioned N reference signal resources and M first information can be directly or indirectly associated.

[0166] In some embodiments of this application, each of the N reference signal resources is associated with at least one of the M first information resources.

[0167] In some examples, each reference signal resource may be directly or indirectly associated with at least one of the M first pieces of information.

[0168] Thus, since the embodiments of this application specify the association method between each reference signal and M first information, the terminal can accurately determine the N reference signal resources associated with the M first information based on the association method, so as to accurately determine the precoding information based on the first information and the N reference signal resources.

[0169] In some embodiments of this application, the aforementioned N reference signal resources belong to at least two resource sets, and one resource set is associated with at least one of M first information items.

[0170] Among them, a reference signal resource in a resource set can be indirectly associated with the first information associated with a resource set.

[0171] In some examples, for each of at least two resource sets, the reference signal resources in one set have no intersection. For example, resource set 1 is {resource 1, resource 2}, and resource set 2 is {resource 3, resource 4}.

[0172] In other examples, for each of at least two resource sets, the reference signal resources in one set have no intersection. For example, resource set 1 is {resource 1, resource 2}, and resource set 2 is {resource 2, resource 3}.

[0173] Thus, since the embodiments of this application specify the association method between each reference signal and M first information, the terminal can accurately determine the N reference signal resources associated with the M first information based on the association method, so as to accurately measure the N reference signal resources.

[0174] In some embodiments of this application, the aforementioned 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 M first information.

[0175] Among them, a reference signal resource associated with a second configuration information is indirectly associated with a first information associated with a configuration information.

[0176] The second configuration information can be understood as the aforementioned reported configuration.

[0177] In some examples, all reference signal resources associated with a second configuration information will be used for the measurement of the first information associated with that second configuration information.

[0178] Thus, since the embodiments of this application specify the association method between each reference signal and M first information, the terminal can accurately determine the N reference signal resources associated with the M first information based on the association method, so as to accurately measure the N reference signal resources.

[0179] In some embodiments of this application, for each of the M first pieces of information, a first piece of information may include multiple sub-information. For at least one reference signal resource or at least one resource set (i.e., a reference signal resource set) or second configuration information associated with that first piece of information, it may only be associated with one of the multiple sub-information. Each of the aforementioned sub-information indicates a portion of the angle information, time delay information, or Doppler frequency shift information indicated by the first information. For example, if the first information indicates angle information and time delay information, the sub-information may indicate a portion of the angle information, or a portion of the time delay information, or a portion of both the angle information and the time delay information. It should be understood that indicating partial information also includes indicating all information.

[0180] In some embodiments of this application, for each of the M first pieces of information, the association method between different first pieces of information and reference signal resources or resource sets or second configuration information may be different.

[0181] In some embodiments of this application, the configuration of the above-mentioned association relationship can be reflected by an identifier containing the first information, such as an identifier containing the first information in the reporting configuration, reference signal resource configuration, or resource set configuration; and for a case where a first information contains multiple sub-information, each sub-information can have an identifier, and a first information can be associated with multiple sub-information through an identifier containing multiple information. At the same time, the above-mentioned reporting configuration, reference signal resource configuration, or resource set configuration, etc., associate sub-information through identifiers containing sub-information.

[0182] In some embodiments of this application, after at least one terminal receives the first configuration information, each terminal can determine precoding information based on M pieces of first information and N reference signal resources. It is understood that since each terminal determines the precoding information based on the same configuration, the probability that the simulated beams are the same in the precoding information determined by at least one terminal can be increased.

[0183] This application provides a method for determining precoding information. A network-side device can send first configuration information to at least one terminal for configuring M first pieces of information for the at least one terminal. The first pieces of information include at least one of the following: angle information, time delay information, and Doppler frequency shift information. Thus, at least one terminal can determine precoding information based on the M first pieces of information and N reference signal resources; M and N are both positive integers. Since the network-side device can send the same first configuration information to at least one terminal, at least one terminal can determine precoding information based on the same M first pieces of information (i.e., at least one of angle information, time delay information, and Doppler frequency shift information) and N reference signal resources. Therefore, the probability that the simulated beams in the precoding information determined by at least one terminal are the same can be increased. Consequently, when the network-side device determines the precoding matrix for at least one terminal, it uses the same simulated beam, which means that the network-side device can simultaneously serve multiple terminals for sensing and / or communication under the same beam. This improves the utilization rate of beam resources.

[0184] In some embodiments of this application, combined with Figure 4 ,like Figure 7 As shown, the precoding information determination method provided in this application embodiment may further include the following steps 201 and 202.

[0185] Step 201: The network-side device sends at least one second configuration information to at least one terminal.

[0186] It should be noted that the execution order of steps 101 and 201 is not limited in this embodiment. In one example, the terminal may execute step 101 first, and then execute step 201. Figure 7 The following is an illustration of this execution order. 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 simultaneously with step 101; for example, the network-side device can send first configuration information and at least one second configuration information to at least one terminal simultaneously through the same signaling.

[0187] In this embodiment of the application, the second configuration information is used to configure at least one terminal to report precoding information.

[0188] Step 202: The network-side device receives at least one precoded message from at least one terminal.

[0189] In some embodiments of this application, after the network-side device receives at least one precoded information from at least one terminal, the network-side device can determine a precoded matrix based on each precoded information, and use each precoded matrix for precoding when sensing or communicating with each terminal, so as to improve sensing performance or communication performance.

[0190] The network-side device can receive precoded information from a sensing terminal (such as the first terminal in the following embodiment), determine a precoded matrix based on the precoded information, and use the precoded matrix for precoding when sensing with the sensing terminal to improve sensing performance.

[0191] The network-side device can receive precoded information from a communication terminal (such as the second terminal in the following embodiment), determine a precoded matrix based on the precoded information, and use the precoded matrix for precoding when communicating with the sensing terminal to improve communication performance.

[0192] Thus, since the network-side device can instruct at least one terminal to report determined precoding information through at least one second configuration information, the network-side device can determine a precoding matrix based on the precoding information determined by each terminal, and use the determined precoding matrix for precoding when sensing or communicating with each terminal. Therefore, the sensing performance of sensing or the communication performance of communication can be improved.

[0193] In some embodiments of this application, the aforementioned at least one terminal includes a first terminal, which is at least used for sensing functions; the precoded information from the first terminal includes at least one of the following:

[0194] At least one first identifier;

[0195] First digital pre-coded information;

[0196] First Precoding Matrix Indicator (PMI).

[0197] In some embodiments of this application, the first terminal described above can be used for sensing functions, or can be used simultaneously for sensing and communication functions. Of course, the first terminal can also be used simultaneously for sensing functions and other functions, and this application does not limit this.

[0198] In some embodiments of this application, the precoding information from the first terminal may be at least a portion of the precoding information corresponding to at least one precoding among M first pieces of information, specifically the first target information. The first target information may include at least one piece of first information.

[0199] In this embodiment of the application, the first identifier includes at least one of the following: the identifier ID of the reference signal resource determined by the first terminal, and the identifier ID of the resource set determined by the first terminal.

[0200] In some embodiments of this application, each of the first identifiers corresponds to a sensing analog beam. It can be understood that each first identifier is an identifier of a reference signal resource associated with a sensing analog beam determined or selected by the first terminal, or each first identifier is an identifier of the resource set to which the reference signal resource associated with a sensing analog beam determined or selected by the first terminal belongs.

[0201] In the first target information, the number of first identifiers corresponding to different first information can be the same or different.

[0202] In some embodiments of this application, the first identifiers corresponding to different first information in the first target information may have an intersection or no intersection.

[0203] In this embodiment of the application, the first digital precoding information includes at least one of the following: digital precoding information corresponding to the reference signal resource indicated by the first identifier, and digital precoding information corresponding to the resource set indicated by the first identifier.

[0204] In some embodiments of this application, the first digital precoding information described above can be used for sensing functions, or for both sensing and communication functions.

[0205] In some embodiments of this application, when the precoding information from the first terminal does not include at least one first identifier but includes first digital precoding information, the first identifier can be preconfigured or defaulted, so that the first terminal can report the first digital precoding information based on the first identifier.

[0206] In some embodiments of this application, the aforementioned first digital precoding information can specifically be a precoding matrix, used for both sensing and communication, and the precoding information used for sensing can be a portion of the aforementioned precoding matrix. For example, the precoding matrix has 4 layers, and the precoding information used for sensing can be the first 2 layers. The following describes how to select the precoding information. For a particular piece of first information in the first target information, the first digital precoding information can be determined by solving the following optimization problem:

[0207]

[0208] Where W represents the precoding matrix, W1 represents the set of optional precoding matrices, and R(W) represents the communication rate under the precoding matrix W. n I(W) represents the nth column in W, i.e., the nth precoding vector. n) indicates that in the precoding vector W n The perception performance index is λ > 0, which is used to characterize the trade-off between communication rate and perception performance.

[0209] In some embodiments of this application, the first digital precoding information described above indicates at least one of the following:

[0210] At least one first spatial vector;

[0211] At least one first spatial beam information;

[0212] At least one first port selection information;

[0213] At least one first precoding codebook.

[0214] In some embodiments of this application, the aforementioned first spatial vector can be a two-dimensional DFT vector or an oversampled two-dimensional DFT (degenerates to a one-dimensional DFT vector or an oversampled one-dimensional DFT for linear arrays); or it can be a two-dimensional DFT vector or an oversampled two-dimensional DFT vector b shared by two polarization directions (degenerates to a one-dimensional DFT vector or an oversampled one-dimensional DFT for linear arrays), and then superimposed with an inter-polarization phase φ, which can be expressed as...

[0215] In this embodiment of the application, the first spatial beam information includes a linear combination of at least one spatial basis vector.

[0216] Wherein, the spatial basis vector can be a spatial two-dimensional DFT vector or an oversampled two-dimensional DFT vector, or have the above characteristics. The vector in the form of a port selection vector needs to be reported, in which case the specific spatial basis vector (e.g., indicated by the index of the DFT vector, or indicated by the selected port) and the linear superposition coefficient (which can be indicated by the phase and amplitude) need to be reported.

[0217] In this embodiment of the application, the aforementioned first port selection information is used to indicate the port of the reference signal selected by the first terminal.

[0218] In this embodiment of the application, the first precoding codebook includes at least one precoding vector.

[0219] The aforementioned first precoding codebook can be reported using an existing codebook type or a future codebook type for communication. The codebook type can include at least one of the following: Type-I, Type-II, or eType-II.

[0220] Thus, since the specific content of the first digital precoding information indication is specified in the embodiments of this application, the first terminal can accurately determine the first digital precoding information based on the specific content. Therefore, the first terminal can report the precoding information required by the network side device to the network side device.

[0221] In some embodiments of this application, each first PMI may correspond to at least one first identifier, or be calculated based on at least one first identifier. It is understood that each first PMI may correspond to at least one sensing analog beam. The first PMIs corresponding to different first identifiers or sensing analog beams may be compressed before being reported to the network-side device, for example, by compressing the PMI.

[0222] Thus, since the embodiments of this application specify the specific content to be included in the precoding information reported by the first terminal, the first terminal can accurately report the precoding information required by the network-side device based on the specific content. Therefore, the network-side device can accurately determine the precoding matrix used for sensing based on the precoding information.

[0223] In some embodiments of this application, after the precoding information of the first terminal, the network-side device can first determine the analog precoding corresponding to the precoding information. Simultaneously, based on the perceived digital precoding information (i.e., the first digital precoding information) reported by the first terminal, the digital weights under this analog precoding are determined. Where Nt is the number of antennas on the network-side device, Np is the number of digital channels on the network-side device, and K is the number of digital precodes, which can be determined, for example, based on the number of sensing targets to be detected. Therefore, the final precoding matrix of the network-side device can be represented as W. A W D W A This can be achieved through a phase shifter network, W D It can be implemented on the baseband.

[0224] It is understandable that network-side devices can obtain appropriate sensing analog beams and corresponding sensing digital precoding, as well as the corresponding PMI for communication, from the precoding information received from the first terminal. Thus, the network-side devices can determine appropriate precoding matrices for sensing and precoding for communication, both sharing the same analog beam. Through these two precoding matrices, frequency division multiplexing for sensing and communication is achieved.

[0225] In some embodiments of this application, the at least one terminal mentioned above includes a first terminal, which is at least used for sensing functions. In some examples, after step 101 described above, the precoding information determination method provided in the embodiments of this application may further include step 102 as described below.

[0226] Step 102: The network-side device receives the first measurement information from the first terminal.

[0227] In this embodiment of the application, the first measurement information mentioned above includes at least one of the following:

[0228] Whether the indication information of the perceived target has been detected;

[0229] The number of perceived targets measured;

[0230] Parameter estimation results of the detected sensing targets;

[0231] Spectral information.

[0232] In some embodiments of this application, the above-mentioned reference estimation results include at least one of the following: time delay information, Doppler information, angle information, distance information, velocity information, and position coordinate information.

[0233] In some embodiments of this application, the above-mentioned spectral information includes at least one of the following: time delay spectral information, range spectral information, Doppler spectral information, velocity spectral information, and angle (including azimuth and / or elevation) spectral information; or, the above-mentioned spectral information includes joint spectral information of at least two of time delay / range, Doppler / velocity, and angle, such as time delay-Doppler spectral information, or time delay-Doppler-angle spectral information.

[0234] Thus, since the network-side device can also receive the first measurement information sent by the first terminal, and learn various information related to the sensing target through the first measurement information, the network-side device can accurately determine the precoding matrix used for sensing based on the first measurement information.

[0235] In some embodiments of this application, the aforementioned at least one terminal includes a second terminal, which is used solely for communication functions; the precoded information from the second terminal includes at least one of the following:

[0236] At least one second identifier;

[0237] Second PMI.

[0238] In some embodiments of this application, the precoding information from the second terminal may be at least a portion of the precoding information corresponding to at least one precoding among M first pieces of information and the second target information. The second target information may include at least one piece of first information.

[0239] In this embodiment of the application, the second identifier includes at least one of the following: an identifier of the reference signal resource determined by the second terminal, and an identifier of the resource set determined by the second terminal.

[0240] In some embodiments of this application, each of the above-mentioned second identifiers corresponds to a sensing analog beam. It can be understood that each second identifier can be an identifier of a reference signal resource associated with a sensing analog beam selected by the second terminal, or each second identifier can be an identifier of the resource set to which the reference signal resource associated with a sensing analog beam selected by the second terminal belongs.

[0241] In the second target information, the number of second identifiers corresponding to different first information can be the same or different.

[0242] In some embodiments of this application, the second identifiers corresponding to different first information in the second target information may have an intersection or no intersection.

[0243] In some embodiments of this application, each second PMI may correspond to at least one second identifier, or be calculated based on at least one second identifier. It is understood that each second PMI may correspond to at least one sensing analog beam. The second PMIs corresponding to different sensing analog beams or second identifiers may be compressed before being reported to the network-side device, for example, by compressing the second PMIs.

[0244] Thus, since the embodiments of this application specify the specific content to be included in the precoding information reported by the second terminal, the second terminal can accurately report the precoding information required by the network-side device based on the specific content. Therefore, the network-side device can accurately determine the precoding matrix used for communication based on the precoding information.

[0245] Figure 8 A flowchart illustrating a precoding information determination method provided in an embodiment of this application is shown. Figure 8 As shown, a precoding information determination method provided in this application embodiment may include the following steps 301 and 302.

[0246] Step 301: The first terminal receives the first configuration information from the network-side device.

[0247] In this embodiment of the application, the first terminal is used for at least the sensing function.

[0248] In some embodiments of this application, the first terminal may be used for sensing functions, or may be used for both sensing and communication functions.

[0249] In this embodiment of the application, the first configuration information is used to configure M first information for at least one terminal. The at least one terminal includes a first terminal, and the first information includes at least one of the following: angle information, time delay information, and Doppler frequency shift information.

[0250] It should be noted that the descriptions of the first configuration information and the M first pieces of information can be found in the specific descriptions in the above embodiments, and will not be repeated here in the embodiments of this application.

[0251] Step 302: The first terminal determines the precoding information based on M first information items and N reference signal resources.

[0252] In the embodiments of this application, M and N are both positive integers.

[0253] In some embodiments of this application, the first terminal may first perform channel estimation on N reference signal resources, and then filter the channel estimation result based on M first information to determine precoding information; or, the first terminal may first filter the first reference signal of N reference signal resources based on M first information, and then measure the filtered first reference signal to determine precoding information.

[0254] For example, let's take a primary piece of information used to indicate both angle and time delay information. Figure 9A As shown, Figure 9A The shaded squares in the diagram represent the responses found in the corresponding angle and latency information. The dashed boxes represent first information configured by the network-side device (this first information includes angle information and latency information). The first terminal can then perform filtering based on this angle and latency information. For example... Figure 9B As shown, after filtering, the first terminal can obtain the response located in the angle information and the time delay information.

[0255] In this embodiment of the application, there may be responses from the wireless channel propagation environment itself outside the sensing area. For example... Figure 9A and Figure 9B As shown, if M first pieces of information are not configured ( Figure 9A and Figure 9B (The example shown uses one of the M pieces of first information.) Environmental components will affect the measurement and calculation of precoded information by the first terminal. For instance, if the intensity of environmental components is high, the precoded information calculated by the first terminal will be more biased towards the environmental components than towards the perceived target. As described above, the M pieces of first information in this embodiment have the advantage of making the calculation of precoded information by the first terminal more accurate.

[0256] This application provides a method for determining precoding information. A first terminal can receive first configuration information from a network-side device for configuring M first pieces of information for at least one terminal. The at least one terminal includes the first terminal, which is used for at least sensing functions. The first information includes at least one of the following: angle information, time delay information, and Doppler frequency shift information. Based on the M first pieces of information and N reference signal resources, precoding information is determined. M and N are both positive integers. Since the first configuration information received by the first terminal is the same as the first configuration information received by other terminals among at least one terminal, at least one terminal can determine the precoding information based on the same M first information (i.e., at least one of angle information, time delay information, and Doppler frequency shift information) and N reference signal resources. Therefore, the probability that the analog beam in the precoding information determined by the first terminal is the same as the analog beam in the precoding information determined by other terminals can be increased. Thus, after at least one terminal reports the determined precoding information to the network-side device, the network-side device can use the same analog beam when determining the precoding matrix for at least one terminal. This allows the analog beam used by the network-side device for providing sensing services to the first terminal to be the same as the analog beam used by the network-side device for providing communication or sensing services to other terminals, thereby improving the utilization rate of beam resources.

[0257] In some embodiments of this application, combined with Figure 8 ,like Figure 10 As shown, the precoding information determination method provided in this application embodiment may further include the following steps 401 and 402.

[0258] Step 401: The first terminal receives at least one second configuration information from the network-side device.

[0259] It should be noted that the order in which the first terminal executes steps 401 and 301 is not limited in this embodiment. In one example, the first terminal may execute step 301 first, followed by step 401. Figure 10 This is an illustration of the execution order; in another example, the first terminal may execute step 401 first, and then execute step 301; in yet another example, the first terminal may execute step 401 while executing step 301, for example, the first terminal may receive a signaling message that carries first configuration information and at least one second configuration information.

[0260] In this embodiment of the application, the second configuration information is used to configure at least one terminal to report precoding information.

[0261] Step 402: The first terminal sends precoded information to the network-side device.

[0262] Thus, since the first terminal can send precoding information to the network-side device based on at least one second configuration information sent by the network-side device, the network-side device can determine the precoding matrix for sensing based on the precoding information determined by the first terminal, and use the precoding matrix for precoding when sensing with the first terminal. Therefore, the sensing performance can be improved.

[0263] In some embodiments of this application, the above-mentioned encoded information includes at least one of the following:

[0264] At least one first identifier;

[0265] First digital pre-coded information;

[0266] First PMI.

[0267] In this embodiment of the application, the first identifier includes at least one of the following: an identifier of the reference signal resource determined by the first terminal, and an identifier of the resource set determined by the first terminal. The first digital precoding information includes at least one of the following: digital precoding information corresponding to the reference signal resource indicated by the first identifier, and digital precoding information corresponding to the resource set indicated by the first identifier.

[0268] It should be noted that the descriptions of at least one first identifier, first digital precoding information, and first PMI can be found in the specific descriptions in the above embodiments, and will not be repeated here in the embodiments of this application.

[0269] Thus, since the embodiments of this application specify the specific content to be included in the precoding information reported by the first terminal, the first terminal can accurately report the precoding information required by the network-side device based on the specific content. Therefore, the network-side device can accurately determine the precoding matrix used for sensing based on the precoding information.

[0270] In some embodiments of this application, the aforementioned at least one first identifier includes at least one of the following: an identifier of a second reference signal resource; an identifier of a second resource set; wherein the second reference signal resource is: at least one reference signal resource that satisfies a predefined sensing requirement among reference signal resources associated with at least a portion of the first information in M ​​first information; and the second resource set is the resource set to which the second reference signal resource belongs.

[0271] Specifically, the at least part of the first information may be the aforementioned first target information. The first target information may include at least one piece of first information, each piece of first information corresponding to at least one reference signal resource in the second reference signal resources.

[0272] For the m-th piece of first information in the first target information, the first terminal can determine the number N of at least one reference signal resource or at least one resource set (e.g., at least one resource group or at least one resource burst set) in the second reference signal resources corresponding to the m-th piece of first information. m Among them, N m This can be indicated explicitly or implicitly by network-side devices or by protocols. m m

[0273] Regulations, or N m The maximum and / or minimum values ​​are indicated by the network-side device or agreed upon by the protocol. Optionally, the number of at least one reference signal resource or at least one set of resources in the second reference signal resources corresponding to different pieces of first information in the first target information may be the same or different. m is a positive integer.

[0274] In some embodiments of this application, for the m-th first piece of information in the first target information, the first terminal may first sort the perception performance indicators of at least one first piece of information corresponding to the m-th first piece of information from high to low, and select the top N with the best perception performance indicators. m A reference signal resource or resource set, which serves as at least one reference signal resource or resource set in the second reference signal resource corresponding to the m-th first information.

[0275] It should be noted that sensing performance metrics include at least one of the following: metrics related to received power, metrics related to interference and noise power, metrics related to the perceived signal-to-interference plus-noise ratio (SINR), metrics related to the perceived signal-to-noise ratio (SNR), metrics related to the perceived signal-to-interference ratio (SIR), metrics related to the perceived reference signal receiving quality (RSRQ), statistical metrics related to perceived measurements, evaluation metrics related to the ambiguity function, the Crammér-Rao Lower Bound (CRLB), the Capacity-Distortion Tradeoff, the Equivalent Mean Square Error (MSE), the Estimation-Communication Rate, and the Welch Lower Bound. The calculation result obtained by performing at least one operation of addition, subtraction, multiplication, or division on any two of the above indicators such as Perceptual SNR, Perceptual SINR, and Cramer-Rao Lower Bound (CRLB).

[0276] Among them, the received power-related indicators include the first indicator (received power of the sensing target associated path): the linear average (in W) of the received power of the path associated with the sensing target (also called the target path) in the channel response measured for the first signal over the resource unit carrying the first signal. The resource unit is a time-domain and / or frequency-domain resource unit; the first signal can be: a sensing signal such as a dedicated signal used for sensing services, or a communication signal such as a reference signal, synchronization signal, etc.

[0277] The interference and noise power related indicators include at least one of the following: the second indicator, the third indicator, and the fourth indicator.

[0278] The second indicator is defined as the linear average power of all paths other than the sensing target associated path in the channel response of the first signal on the target resource, and the sum of the linear average power of interference and noise from signals other than the first signal on the target resource or other resources (e.g., resources configured for higher-layer signaling) (in W). The target resource can be a time-frequency domain resource unit carrying the first signal. The second indicator equals the total received power minus the first indicator. The total received power can be expressed as the linear average of the total received power on the target resource (including the received power of signals from the serving cell and non-serving cells, adjacent channel interference, and thermal noise, etc.) (in W). Alternatively, the total received power equals RSSI * K1, where K1 is a coefficient, and the resource for measuring the Received Signal Strength Indication (RSSI) is the target resource or other resources (e.g., resources configured for higher-layer signaling).

[0279] The third metric is the linear average (in W) of the interference and noise power from signals other than the first signal on the target resource or other resources (such as resources configured by higher-layer signaling); wherein the target resource can be a time-frequency domain resource unit carrying the first signal; the third metric = total received power - first signal received power; wherein the first signal received power is the reference signal received power (RSRP) of the first signal.

[0280] Fourth index: The linear average power (in W) of the power of all paths other than the sensing target associated path in the channel response of the first signal on the target resource; Fourth index = RSRP of the first signal - First index.

[0281] The perceived SINR-related indicators, perceived SNR-related indicators, or perceived SIR-related indicators may include at least one of the following: the fifth indicator, the sixth indicator, the seventh indicator, and the eighth indicator. Wherein, the fifth indicator = the first indicator / the second indicator mentioned above; the sixth indicator = the first indicator / the third indicator mentioned above; and the seventh indicator = the first indicator / the fourth indicator mentioned above.

[0282] The RSRP-related metrics include the eighth metric, which is calculated as K2 * the first metric / total received power, where K2 is a coefficient.

[0283] The statistical indicators related to the sensing measurement can be the statistical mean, standard deviation, or variance of multiple measurements of the same sensing measurement, or the deviation between the predicted value and the actual measured value of the sensing measurement / sensing result, as well as the statistical mean, standard deviation, or variance of the deviation.

[0284] Evaluation metrics related to fuzzy functions include the Normalized Sidelobe Level (NSL), which is the height of the highest sidelobe of the normalized fuzzy function; or the ratio of the main lobe to the highest sidelobe of the fuzzy function (or the ratio of the highest sidelobe to the main lobe); in addition, it may also include the number of normalized fuzzy function sidelobes / total power / total energy with peak values ​​above a given threshold, the width of the fuzzy function main lobe (3dB width), etc.

[0285] The Cramerlow lower bound is the lowest variance achievable by all unbiased estimators, mathematically equal to the reciprocal of the Fisher information. This evaluation metric is related to perceived SNR.

[0286] The quantitative distortion function gives the maximum achievable rate of reliable transmission in a synoptic integrated system under a given distortion constraint.

[0287] The equivalent mean square error is calculated by converting the spectral efficiency of communication into an equivalent radar mean square error, which can be obtained by combining the sensing Cramer-Rao lower bound.

[0288] Radar rate estimation treats the sensing channel as a non-cooperative communication channel, and the mutual information between the sensing system and the target is the estimated rate.

[0289] Perceptual reproducibility evaluation metrics (such as the sum of Euclidean distances between sample points of two consecutive sequences, or the regular path distance in Dynamic Time Warping (DTW), or other metrics that can reflect the similarity between two sequences, including but not limited to: Longest Common Subsequence (LCSS), EditDistance on Real Sequences (EDR), Edit Distance with Real Penalty (ERP), Hausdorff Distance, Fréchet Distance, One Way Distance (OWD), Locality In-between Polylines (LIP), etc.).

[0290] In some embodiments of this application, after the first terminal selects at least one reference signal resource or resource set in the second reference signal resources corresponding to each piece of first information in the first target information, the first terminal can directly report the first identifier of the at least one reference signal resource or resource set in the second reference signal resources corresponding to each piece of first information to the network-side device. That is, the first identifiers in the precoding information reported by the first terminal may contain the same identifier, that is, the at least one reference signal resource or resource set in the second reference signal resources corresponding to each piece of first information may have an intersection. Alternatively, the first terminal can report the union of the first identifiers of the at least one reference signal resource or resource set in the second reference signal resources corresponding to each piece of first information to the network-side device. That is, the first identifiers in the precoding information reported by the first terminal do not contain the same identifier.

[0291] In some embodiments of this application, after step 302 above, the precoding information determination method provided in the embodiments of this application may further include step 303 below.

[0292] Step 303: The first terminal sends the first measurement information to the network-side device.

[0293] In this embodiment of the application, the first measurement information mentioned above includes at least one of the following:

[0294] Whether the indication information of the perceived target has been detected;

[0295] The number of perceived targets measured;

[0296] Parameter estimation results of the detected sensing targets;

[0297] Spectral information.

[0298] It should be noted that the descriptions of each piece of information in the first measurement information can be found in the specific descriptions in the above embodiments, and will not be repeated here in the embodiments of this application.

[0299] Thus, since the first terminal can also send first measurement information to the network-side device to indicate various information related to the sensing target to the network-side device through the first measurement information, the network-side device can accurately determine the precoding matrix used for sensing based on the first measurement information.

[0300] Figure 11 A flowchart illustrating a precoding information determination method provided in an embodiment of this application is shown. Figure 11 As shown in the embodiments of this application, a method for determining precoded information may include the following steps 501 and 502.

[0301] Step 501: The second terminal receives the first configuration information from the network-side device.

[0302] In this embodiment, the second terminal is used only for communication functions.

[0303] In this embodiment of the application, the first configuration information is used to configure M first information for at least one terminal, and the at least one terminal includes a second terminal. The first information includes at least one of the following: angle information, time delay information, and Doppler frequency shift information.

[0304] It should be noted that the descriptions of the first configuration information and the M first pieces of information can be found in the specific descriptions in the above embodiments, and will not be repeated here in the embodiments of this application.

[0305] Step 502: The second terminal determines the precoding information based on M pieces of first information and N reference signal resources.

[0306] In the embodiments of this application, M and N are both positive integers.

[0307] In some embodiments of this application, the second terminal may measure N reference signal resources based on M first pieces of information to determine precoding information.

[0308] This application provides a method for determining precoding information. A second terminal can receive first configuration information from a network-side device for configuring M pieces of first information for at least one terminal. The at least one terminal includes the second terminal, which is used only for communication functions. The first information includes at least one of the following: angle information, time delay information, and Doppler frequency shift information. Based on the M pieces of first information and N reference signal resources, precoding information is determined. M and N are both positive integers. Since the first configuration information received by the second terminal is the same as the first configuration information received by the other terminals among at least one terminal, at least one terminal can determine the precoding information based on the same M first information (i.e., at least one of angle information, time delay information, and Doppler frequency shift information) and N reference signal resources. Therefore, the probability that the analog beam in the precoding information determined by the second terminal is the same as the analog beam in the precoding information determined by other terminals can be increased. Thus, after at least one terminal reports the determined precoding information to the network-side device, the network-side device can use the same analog beam when determining the precoding matrix for at least one terminal. This allows the analog beam used by the network-side device to provide communication services to the second terminal to be the same as the analog beam used by the network-side device to provide communication services or sensing services to other terminals, thereby improving the utilization rate of beam resources.

[0309] In some embodiments of this application, combined with Figure 11 ,like Figure 12As shown, the precoding information determination method provided in this application embodiment may further include the following steps 601 and 602.

[0310] Step 601: The second terminal receives at least one second configuration information from the network-side device.

[0311] In this embodiment of the application, the second configuration information is used to configure at least one terminal to report precoding information.

[0312] Step 602: The second terminal sends precoded information to the network-side device.

[0313] Thus, since the second terminal can send precoding information to the network-side device based on at least one second configuration information sent by the network-side device, the network-side device can determine the precoding matrix for communication based on the precoding information determined by the second terminal, and use the precoding matrix for precoding when communicating with the second terminal. Therefore, the communication performance can be improved.

[0314] In some embodiments of this application, the precoding information includes at least one of the following:

[0315] At least one second identifier;

[0316] Second PMI.

[0317] In this embodiment of the application, the second identifier includes at least one of the following: an identifier of the reference signal resource determined by the second terminal, and an identifier of the resource set determined by the second terminal.

[0318] It should be noted that the description of at least one second identifier and the second PMI can be found in the specific description in the above embodiments, and will not be repeated here in the embodiments of this application.

[0319] Thus, since the embodiments of this application specify the specific content to be included in the precoding information reported by the second terminal, the second terminal can accurately report the precoding information required by the network-side device based on the specific content. Therefore, the network-side device can accurately determine the precoding matrix used for communication based on the precoding information.

[0320] In some embodiments of this application, the aforementioned at least one second identifier includes at least one of the following:

[0321] Identification of the second reference signal resource;

[0322] The identifier of the second resource set;

[0323] Identification of the third reference signal resource

[0324] The identifier of the third resource set.

[0325] In this embodiment of the application, the second reference signal resource is: at least one reference signal resource that satisfies the predefined sensing requirements among the reference signal resources associated with at least a portion of the first information in the M first information.

[0326] Specifically, the at least part of the first information may be the aforementioned second target information. The second target information may include at least one piece of first information, each piece of first information corresponding to at least one reference signal resource in the second reference signal resources.

[0327] In one example, the second identifier only contains the identifier of the second reference signal resource. The second terminal can determine N1 second reference signal resources with the best corresponding sensing performance indicators to obtain the identifiers of the N1 second reference signal resources. Optionally, the value of N1 or the maximum value of N1 can be configured by the network-side device or agreed upon by the protocol; N1 is a positive integer.

[0328] For the nth piece of first information in the first target information, the second terminal can determine the number N of at least one reference signal resource in the second reference signal resources corresponding to the nth piece of first information. n Among them, N n This can be explicitly or implicitly indicated by the network-side device or specified by the protocol, or N n The maximum and / or minimum values ​​are indicated by the network-side device or agreed upon by the protocol. Optionally, the number of at least one reference signal resource in the second reference signal resources corresponding to different first information in the second target information may be the same or different. n is a positive integer.

[0329] In some embodiments of this application, for the nth first piece of information in the second target information, the second terminal may first sort the perception performance indicators of at least one first piece of information corresponding to the nth first piece of information from high to low performance, and select the top N with the best perception performance indicators. n A reference signal resource, which serves as at least one reference signal resource in the second reference signal resource corresponding to the nth first information.

[0330] In another embodiment, a first threshold for the sensing performance index can be set, and reference signal resources with sensing performance indices below the first threshold will not be used as reference signal resources in the second set of reference signal resources. This first threshold can be configured by the network-side device or agreed upon by a protocol.

[0331] In this embodiment of the application, the second resource set is the resource set to which the second reference signal resource belongs.

[0332] In another example, the second identifier contains only the identifier of the second resource set, and the specific determination process can refer to the case described above where the second identifier contains only the identifier of the second reference signal resource.

[0333] In this embodiment of the application, the aforementioned third reference signal resource is: at least one reference signal resource that satisfies predefined communication requirements among the reference signal resources associated with at least a portion of the first information among the M first information.

[0334] Specifically, the at least part of the first information may be the aforementioned second target information. The second target information may include at least one piece of first information, each piece of first information corresponding to at least one reference signal resource in the third reference signal resource.

[0335] In one example, at least one second identifier includes an identifier for a second reference signal resource and an identifier for a third reference signal. In this case, the second terminal can determine the identifiers of N2 second reference signal resources with the best sensing performance indicators and the identifiers of N3 third reference signal resources with the best communication performance indicators; N2 and N3 are both positive integers.

[0336] In scenario 1, the value of N2 or its maximum possible value, and / or the value of N3 or its maximum possible value, are configured by the network-side equipment or agreed upon by the protocol. For example, the identifier of the second reference signal resource with the best perception performance among the N2 resources can be determined according to the determination method described in the above embodiments; the identifier of the third reference signal resource with the best communication performance among the N3 resources can be determined according to the communication performance indicators in descending order of performance.

[0337] It should be noted that the above communication performance indicators may include at least one of the following: Reference Signal Received Power (RSRP), Signal to Interference plus Noise Ratio (SINR), Signal-Noise Ratio (SNR), and Block Error Rate (BLER).

[0338] In scenario 2, the sum of N2 and N3, or the maximum value of the sum, is configured by the network-side device. Optionally, the maximum value of N2 and / or the maximum value of N3 is configured by the network-side device.

[0339] For example, the second terminal can first identify a reference signal resource with optimal communication performance, and then filter out candidate reference signal resources to form a first reference signal resource candidate set. The filtering rule can be that the difference between the communication performance index and the communication performance index of the reference signal is less than a second threshold, which can be configured by the network-side equipment or specified by the protocol. In the first reference signal resource candidate set, N2 second reference signal resources are determined according to the optimal perceived performance index. If N2+1 is less than a preset value (the sum of N2 and N3 or the maximum possible value), a third reference signal resource is determined according to the optimal communication performance index until the preset value is reached or N3 reaches its maximum value. Optionally, when determining the third reference signal resource according to the communication performance index, it can be determined from the first reference signal resource candidate set; or it can be determined from the second reference signal resource candidate set, where the second reference signal resource candidate set is determined based on the third threshold specified by the network-side equipment configuration or protocol.

[0340] For example, the second terminal can first determine a reference signal resource with the best communication performance index, and then filter out the candidate reference signal resources to form a second reference signal resource candidate set. The filtering rule can be that the difference between the communication performance index and the communication performance index of the reference signal is less than a third threshold.

[0341] In scenario 3, the sum of N2 and N3, or the maximum value of their sum, is configured by the network-side device. Optionally, the maximum value of N2 is also configured by the network-side device. First, N2 second reference signal resources with optimal perception performance indicators are determined according to scenario 1 above. Then, N3 third reference signal resources with optimal communication performance indicators are determined according to the criterion of optimal communication performance indicators. These N3 third reference signal resources can be determined from the remaining undetermined reference signal resources or from the candidate set of third reference signal resources. Finally, the total number is increased until a preset value is reached (e.g., the sum of N2 and N3, or the maximum value of the sum of N2 and N3) or no reference signal resources are selected. The candidate set of third reference signals is determined based on the network-side device configuration or a fourth threshold specified in the protocol.

[0342] For example, the second terminal can first determine a reference signal resource with the best communication performance index, and then filter out the candidate reference signal resources to form a third reference signal resource candidate set. The filtering rule can be that the difference between the communication performance index and the communication performance index of the reference signal is less than a fourth threshold.

[0343] It is understandable that, based on the above three scenarios, in related technologies, the second terminal will only determine the reference signal resource or candidate set of reference signal resources based on the criterion of optimal communication performance indicators. Therefore, the determined reference signal resource or candidate set of reference signal resources may not overlap with the reference signal resource or candidate set of reference signal resources determined by the sensing terminal. However, in this embodiment, through the configuration of the network-side equipment, the second terminal will also comprehensively consider relevant sensing criteria when determining the reference signal resource. This makes it highly probable that the analog beam in the final determined precoding information and the sensing analog beam ultimately used by the network-side equipment will overlap. This allows communication services and sensing services to use the same analog beam, achieving frequency division multiplexing or space division multiplexing, thereby improving the utilization rate of beam resources.

[0344] In another example, at least one second identifier includes an identifier for a second resource set and an identifier for a third resource set. In this case, the second terminal can determine the identifier of the second resource set with the best N4 perception performance indicators and the identifier of the third resource set with the best N5 communication performance indicators; N4 and N5 are both positive integers. The value of N4, or its maximum possible value, and / or the value of N5, or its maximum possible value, is configured by the network-side device or agreed upon by the protocol. Alternatively, the sum of N4 and N5, or their maximum value, is configured by the network-side device. Optionally, the maximum value of N4 and / or the maximum value of N5 is configured by the network-side device. The specific determination process can refer to the case described above where one second identifier includes the identifier of a second reference signal resource and the identifier of a third reference signal.

[0345] It should be understood that the identifier of the second reference signal resource in the first example above can be replaced with the identifier of the second resource set, or the identifier of the third reference signal resource can be replaced with the identifier of the third resource set. The relevant descriptions in the above examples (including the configuration methods of parameters such as N2 and N3 and the determination method of the second identifier) ​​are still applicable and will not be repeated here.

[0346] In this embodiment of the application, the aforementioned third resource set is the resource set to which the third reference signal resource belongs.

[0347] Thus, since the embodiments of this application specify the specific content to be included in the precoding information reported by the second terminal, the second terminal can accurately report the precoding information required by the network-side device based on the specific content. Therefore, the network-side device can accurately determine the analog beams used for communication and sensing and their respective precoding matrices based on the precoding information and the precoding information reported by the sensing terminal.

[0348] The precoding information determination method provided in this application can be executed by a precoding information determination device. This application uses the example of a precoding information determination device executing the precoding information determination method to illustrate the precoding information determination device provided in this application.

[0349] This application provides a precoding information determination device. As an example, the precoding information determination device can be a communication device or a component in a communication device, such as a chip. The communication device can be a terminal, a network-side device, or a server, etc. Exemplarily, the terminal can be, but is not limited to, the type of terminal 11 listed above, and the network-side device can be, but is not limited to, the type of network-side device 12 listed above. This application does not impose specific limitations.

[0350] The precoded information determination device includes a transmitting module, a receiving module, and a processing module. These modules can be implemented in software or hardware. When implemented in hardware, the processing module can be implemented by a processor. Exemplarily, the processor can include general-purpose processors, special-purpose processors, such as a Central Processing Unit (CPU), microprocessor, Digital Signal Processor (DSP), Artificial Intelligence (AI) processor, Graphics Processing Unit (GPU), Application Specific Integrated Circuit (ASIC), Network Processor (NP), Field Programmable Gate Array (FPGA), or other programmable logic devices, gate circuits, transistors, discrete hardware components, etc. The receiving and transmitting modules can be implemented by a communication interface, which can include one or more of the following: transceiver, pins, circuits, bus, radio frequency unit, etc.

[0351] Specifically, see Figure 13 When the precoding information determination device is a network-side device or a component of a network-side device, the precoding information determination device 60 includes: a transmission module 61.

[0352] The transmitting module 61 is configured to transmit first configuration information to at least one terminal. This first configuration information is used to configure M pieces of first information for the at least one terminal. The first information includes at least one of the following: angle information, time delay information, and Doppler frequency shift information. The M pieces of first information and N reference signal resources are used to determine precoding information, where M and N are both positive integers.

[0353] This application provides a precoding information determination device. Since the precoding information determination device can send the same first configuration information to at least one terminal, at least one terminal can determine the precoding information based on the same M first information (i.e., at least one of angle information, time delay information, and Doppler frequency shift information) and N reference signal resources. Therefore, the probability that the analog beams in the precoding information determined by at least one terminal are the same can be increased. Thus, when the precoding information determination device determines the precoding matrix for at least one terminal, it uses the same analog beam, which means that the precoding information determination device can simultaneously serve multiple terminals for sensing and / or communication under the same beam. In this way, the utilization rate of beam resources can be improved.

[0354] In one possible implementation, the N reference signal resources satisfy at least one of the following: the N reference signal resources are periodic resources; the N reference signal resources belong to at least two resource sets.

[0355] In one possible implementation, when N reference signal resources belong to at least two resource sets, the downlink spatial transmission filters of reference signal resources with different time-domain resources are the same within the same resource set.

[0356] In one possible implementation, each reference signal resource is associated with at least one of M first pieces of information.

[0357] In one possible implementation, N reference signal resources belong to at least two resource sets, and one resource set is associated with at least one of M first information.

[0358] In one possible implementation, when the second information includes Doppler frequency shift information, the Doppler measurement related parameters corresponding to the second information satisfy at least one of the following: related to the resource configuration information of the reference signal resources in the first resource set; related to the resource configuration information of the reference signal resources with the same first sequence number in at least two first resource sets; wherein the second information is any one of M pieces of first information; and the first resource set is the resource set associated with the second information.

[0359] In one possible implementation, the sending module 61 is further configured to send at least one second configuration information to at least one terminal, the second configuration information being used to configure the at least one terminal to report precoding information. The precoding information determining device 60 provided in this application embodiment may further include a receiving module. The receiving module is configured to receive at least one precoding information from at least one terminal.

[0360] In one possible implementation, 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 M first information.

[0361] In one possible implementation, at least one terminal includes a first terminal, which is used for at least sensing functions; the precoding information from the first terminal includes at least one of the following: at least one first identifier; first digital precoding information; first PMI; wherein the first identifier includes at least one of the following: an identifier of a reference signal resource determined by the first terminal, an identifier of a resource set determined by the first terminal; the first digital precoding information includes at least one of the following: digital precoding information corresponding to the reference signal resource indicated by the first identifier, digital precoding information corresponding to the resource set indicated by the first identifier.

[0362] In one possible implementation, the aforementioned first digital precoding information indicates at least one of the following: at least one first spatial vector; at least one first spatial beam information; at least one first port selection information; at least one first precoding codebook; wherein the first port selection information is used to indicate the port of the reference signal selected by the first terminal; the first spatial beam information includes a linear combination of at least one spatial basis vector; and the first precoding codebook includes at least one precoding vector.

[0363] In one possible implementation, at least one terminal includes a second terminal, which is used solely for communication functions; the precoded information from the second terminal includes at least one of the following: at least one second identifier; a second PMI; wherein the second identifier includes at least one of the following: an identifier of a reference signal resource determined by the second terminal, and an identifier of a resource set determined by the second terminal.

[0364] In one possible implementation, at least one terminal includes a first terminal, which is at least used for sensing functions. The pre-coding information determination device 60 provided in this application embodiment may further include a receiving module. The receiving module is configured to receive first measurement information from the first terminal, the first measurement information including at least one of the following: indication information on whether a sensing target is detected; the number of sensed targets measured; parameter estimation results of the detected sensed targets; and spectral information.

[0365] See Figure 14 When the precoding information determination device is a terminal or a component in a terminal, the precoding information determination device 70 includes a receiving module 71 and a processing module 72.

[0366] The receiving module 71 is used to receive first configuration information from a network-side device. The first configuration information is used to configure M first pieces of information for at least one terminal. The at least one terminal includes a precoding information determining device 70, which is used for at least a sensing function. The first information includes at least one of the following: angle information, time delay information, and Doppler frequency shift information. The processing module 72 is used to determine precoding information based on the M first pieces of information and N reference signal resources configured by the first configuration information received by the receiving module 71; where M and N are both positive integers.

[0367] This application provides a precoding information determination device. Since the first configuration information received by the precoding information determination device is the same as the first configuration information received by other terminals among at least one terminal, at least one terminal can determine the precoding information based on the same M first information (i.e., at least one of angle information, time delay information, and Doppler frequency shift information) and N reference signal resources. Therefore, the probability that the analog beam in the precoding information determined by the precoding information determination device is the same as the analog beam in the precoding information determined by other terminals can be increased. Thus, after at least one terminal reports the determined precoding information to the network-side device, the network-side device can use the same analog beam when determining the precoding matrix for at least one terminal. This allows the analog beam used by the network-side device for the precoding information determination device to provide sensing services to be the same as the analog beam used by the network-side device for other terminals to provide communication or sensing services, thereby improving the utilization rate of beam resources.

[0368] In one possible implementation, the receiving module 71 is further configured to receive at least one second configuration information from a network-side device, the second configuration information being used to configure at least one terminal to report precoding information. The precoding information determining device 70 provided in this application embodiment may further include a sending module. The sending module is configured to send precoding information to the network-side device.

[0369] In one possible implementation, the precoding information includes at least one of the following: at least one first identifier; first digital precoding information; first PMI; wherein the first identifier includes at least one of the following: an identifier of a reference signal resource determined by the precoding information determining device 70, and an identifier of a resource set determined by the precoding information determining device 70; the first digital precoding information includes at least one of the following: digital precoding information corresponding to the reference signal resource indicated by the first identifier, and digital precoding information corresponding to the resource set indicated by the first identifier.

[0370] In one possible implementation, at least one first identifier includes at least one of the following: an identifier of a second reference signal resource; an identifier of a second resource set; wherein the second reference signal resource is: at least one reference signal resource that satisfies a predefined sensing requirement among the reference signal resources associated with at least a portion of the first information in M ​​first information; and the second resource set is the resource set to which the second reference signal resource belongs.

[0371] In one possible implementation, the precoding information determination device 70 provided in this application embodiment may further include: a sending module. The sending module is configured to send first measurement information to a network-side device, 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.

[0372] See Figure 15 When the precoding information determination device is a terminal or a component in a terminal, the precoding information determination device 80 includes a receiving module 81 and a processing module 82.

[0373] The receiving module 81 is used to receive first configuration information from a network-side device. The first configuration information is used to configure M first pieces of information for at least one terminal. The at least one terminal includes a precoding information determining device 80, which is used solely for communication functions. The first information includes at least one of the following: angle information, time delay information, and Doppler frequency shift information. The processing module 82 is used to determine precoding information based on the M first pieces of information and N reference signal resources configured in the first configuration information; where M and N are both positive integers.

[0374] This application provides a precoding information determination device. Since the first configuration information received by the precoding information determination device is the same as the first configuration information received by other terminals among at least one terminal, at least one terminal can determine the precoding information based on the same M first information (i.e., at least one of angle information, time delay information, and Doppler frequency shift information) and N reference signal resources. Therefore, the probability that the analog beam in the precoding information determined by the precoding information determination device is the same as the analog beam in the precoding information determined by other terminals can be increased. Thus, after at least one terminal reports the determined precoding information to the network-side device, the network-side device can use the same analog beam when determining the precoding matrix for at least one terminal. This allows the analog beam used by the network-side device for communication services for the precoding information determination device to be the same as the analog beam used by the network-side device for communication services or sensing services for other terminals, thereby improving the utilization rate of beam resources.

[0375] In one possible implementation, the receiving module 81 is further configured to receive at least one second configuration information from a network-side device, the second configuration information being used to configure at least one terminal to report precoding information. The precoding information determining device 80 provided in this application embodiment may further include a sending module. The sending module is configured to send precoding information to the network-side device.

[0376] In one possible implementation, the precoding information includes at least one of the following: at least one second identifier; a second PMI; wherein the second identifier includes at least one of the following: an identifier of a reference signal resource determined by the precoding information determining device 80, and an identifier of a resource set determined by the precoding information determining device 80.

[0377] In one possible implementation, at least one second identifier includes at least one of the following: an identifier of a second reference signal resource; an identifier of a second resource set; an identifier of a third reference signal resource; and an identifier of a third resource set; wherein the second reference signal resource is at least one reference signal resource that satisfies predefined sensing requirements among reference signal resources associated with at least a portion of the M first information; the second resource set is the resource set to which the second reference signal resource belongs; the third reference signal resource is at least one reference signal resource that satisfies predefined communication requirements among reference signal resources associated with at least a portion of the M first information; and the third resource set is the resource set to which the third reference signal resource belongs.

[0378] The precoding information determination device provided in this application embodiment can achieve... Figures 4 to 12 The various processes implemented in the method embodiments achieve the same technical effect, and will not be described again here to avoid repetition.

[0379] like Figure 16 As shown in the illustration, this application also provides a communication device 90, including a processor 91 and a memory 92. The memory 92 stores programs or instructions that can run on the processor 91. For example, when the communication device 90 is a terminal, the program or instructions executed by the processor 91 implement the various steps of the above-described pre-encoded information determination method embodiment and achieve the same technical effect. When the communication device 90 is a network-side device, the program or instructions executed by the processor 91 implement the various steps of the above-described pre-encoded information determination method embodiment and achieve the same technical effect. To avoid repetition, these steps will not be repeated here.

[0380] This application embodiment also provides a terminal, including a processor and a communication interface, wherein the communication interface is coupled to the processor, and the processor is used to run programs or instructions to implement, for example... Figures 8 to 12The steps in the method embodiment shown are illustrated. This terminal embodiment corresponds to the above-described terminal-side method embodiment. All implementation processes and methods of the above-described method embodiments can be applied to this terminal embodiment and achieve the same technical effect. The terminal can be... Figure 14 and Figure 15 The precoding information determination device shown. Specifically, Figure 17 A schematic diagram of the hardware structure of a terminal to implement an embodiment of this application.

[0381] The terminal 100 includes, but is not limited to, at least some of the following components: radio frequency unit 101, network module 102, audio output unit 103, input unit 104, sensor 105, display unit 106, user input unit 107, interface unit 108, memory 109, and processor 110.

[0382] Those skilled in the art will understand that the terminal 100 may also include a power supply (such as a battery) for supplying power to various components. The power supply may be logically connected to the processor 110 through a power management system, thereby enabling functions such as managing charging, discharging, and power consumption through the power management system. Figure 17 The terminal structure shown does not constitute a limitation on the terminal. The terminal may include more or fewer components than shown, or combine certain components, or have different component arrangements, which will not be elaborated here.

[0383] It should be understood that, in this embodiment, the input unit 104 may include a graphics processor 1041 and a microphone 1042. The graphics processor 1041 processes image data of still images or videos obtained by an image capture device (such as a camera) in video capture mode or image capture mode. The display unit 106 may include a display panel 1061, which may be configured in the form of a liquid crystal display, an organic light-emitting diode, or the like. The user input unit 107 includes at least one of a touch panel 1071 and other input devices 1072. The touch panel 1071 is also called a touch screen. The touch panel 1071 may include a touch detection device and a touch controller. Other input devices 1072 may include, but are not limited to, physical keyboards, function keys (such as volume control buttons, power buttons, etc.), trackballs, mice, and joysticks, which will not be described in detail here.

[0384] In this embodiment, after receiving downlink data from the network-side device, the radio frequency unit 101 can transmit it to the processor 110 for processing; in addition, the radio frequency unit 101 can send uplink data to the network-side device. Typically, the radio frequency unit 101 includes, but is not limited to, antennas, amplifiers, transceivers, couplers, low-noise amplifiers, duplexers, etc.

[0385] The memory 109 can be used to store software programs or instructions, as well as various data. The memory 109 may primarily include a first storage area for storing programs or instructions and a second storage area for storing data. The first storage area may store the operating system, application programs or instructions required for at least one function (such as sound playback, image playback, etc.). Furthermore, the memory 109 may include volatile memory or non-volatile memory. The non-volatile memory may be read-only memory (ROM), programmable read-only memory (PROM), erasable programmable read-only memory (EPROM), electrically erasable programmable read-only memory (EEPROM), or flash memory. Volatile memory can be random access memory (RAM), static random access memory (SRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (SDRAM), double data rate synchronous dynamic random access memory (DDRSDRAM), enhanced synchronous dynamic random access memory (ESDRAM), synchronous link dynamic random access memory (SLDRAM), and direct memory bus RAM (DRRAM). The memory 109 in the embodiments of this application includes, but is not limited to, these and any other suitable types of memory.

[0386] Processor 110 may include one or more processing units; optionally, processor 110 integrates an application processor and a modem processor, wherein the application processor mainly handles operations involving the operating system, user interface, and applications, and the modem processor mainly handles wireless communication signals, such as a baseband processor. It is understood that the aforementioned modem processor may also not be integrated into processor 110.

[0387] When the terminal is the primary terminal:

[0388] The radio frequency unit 101 is used to receive first configuration information from a network-side device. The first configuration information is used to configure M first information for at least one terminal. The at least one terminal includes a first terminal, which is used for at least sensing functions. The first information includes at least one of the following: angle information, time delay information, and Doppler frequency shift information.

[0389] Processor 110 is used to determine precoding information based on M first information and N reference signal resources.

[0390] Where M and N are both positive integers.

[0391] This application provides a terminal, which is a first terminal. Since the first configuration information received by the first terminal is the same as the first configuration information received by other terminals among at least one terminal, at least one terminal can determine precoding information based on the same M first information (i.e., at least one of angle information, time delay information, and Doppler frequency shift information) and N reference signal resources. Therefore, the probability that the analog beam in the precoding information determined by the first terminal is the same as the analog beam in the precoding information determined by other terminals can be increased. Thus, after at least one terminal reports the determined precoding information to the network-side device, the network-side device can use the same analog beam when determining the precoding matrix for at least one terminal. In this way, the analog beam used by the network-side device for the first terminal to provide sensing services is the same as the analog beam used by the network-side device for the other terminals to provide communication or sensing services, thereby improving the utilization rate of beam resources.

[0392] In some embodiments of this application, the radio frequency unit 101 is further configured to receive at least one second configuration information from a network-side device, the second configuration information being used to configure at least one terminal to report precoding information, and to send the precoding information to the network-side device.

[0393] In some embodiments of this application, the radio frequency unit 101 is further configured to send first measurement information to the network-side device, the first measurement information including at least one of the following: indication information on whether a sensing target is detected; the number of sensing targets measured; parameter estimation results of the detected sensing targets; and spectral information.

[0394] When the terminal is a second terminal:

[0395] The radio frequency unit 101 is used to receive first configuration information from the network side device. The first configuration information is used to configure M first information for at least one terminal. The at least one terminal includes a second terminal, which is only used for communication functions. The first information includes at least one of the following: angle information, time delay information, and Doppler frequency shift information.

[0396] Processor 110 is used to determine precoding information based on M first information and N reference signal resources.

[0397] Where M and N are both positive integers.

[0398] This application provides a terminal, which is a second terminal. Since the first configuration information received by the second terminal is the same as the first configuration information received by other terminals among at least one terminal, at least one terminal can determine precoding information based on the same M first information (i.e., at least one of angle information, time delay information, and Doppler frequency shift information) and N reference signal resources. Therefore, the probability that the analog beam in the precoding information determined by the second terminal is the same as the analog beam in the precoding information determined by other terminals can be increased. Thus, after at least one terminal reports the determined precoding information to the network-side device, the network-side device can use the same analog beam when determining the precoding matrix for at least one terminal. This allows the analog beam used by the network-side device to provide communication services for the second terminal to be the same as the analog beam used by the network-side device to provide communication services or sensing services for other terminals, thereby improving the utilization rate of beam resources.

[0399] In some embodiments of this application, the radio frequency unit 101 is further configured to receive at least one second configuration information from a network-side device, the second configuration information being used to configure at least one terminal to report precoding information, and to send the precoding information to the network-side device.

[0400] It is understood that the implementation process of each implementation method mentioned in this embodiment can refer to the relevant description of the method embodiment and achieve the same or corresponding technical effect. To avoid repetition, it will not be described again here.

[0401] This application embodiment also provides a network-side device, including a processor and a communication interface, wherein the communication interface is coupled to the processor, and the processor is used to run programs or instructions to implement, for example... Figures 4 to 7 The steps of the method embodiment shown are illustrated. This network-side device embodiment corresponds to the above-described network-side device method embodiment. All implementation processes and methods of the above-described method embodiments can be applied to this network-side device embodiment and can achieve the same technical effect.

[0402] Specifically, embodiments of this application also provide a network-side device, which can be... Figure 13 The pre-encoded information determination device shown. For example... Figure 18 As shown, the network-side device 200 includes: an antenna 201, a radio frequency (RF) device 202, a baseband device 203, a processor 204, and a memory 205. The antenna 201 is connected to the RF device 202. In the uplink direction, the RF device 202 receives information through the antenna 201 and transmits the received information to the baseband device 203 for processing. In the downlink direction, the baseband device 203 processes the information to be transmitted and sends it to the RF device 202. The RF device 202 processes the received information and transmits it through the antenna 201.

[0403] The method executed by the network-side device in the above embodiments can be implemented in the baseband device 203, which includes a baseband processor.

[0404] The baseband device 203 may include, for example, at least one baseband board on which multiple chips are disposed, such as... Figure 18 As shown, one of the chips is, for example, a baseband processor, which is connected to the memory 205 via a bus interface to call the program in the memory 205 and execute the network device operation shown in the above method embodiment.

[0405] The network-side device may also include a network interface 206, such as a Common Public Radio Interface (CPRI).

[0406] Specifically, the network-side device 200 in this embodiment further includes: instructions or programs stored in memory 205 and executable on processor 204, wherein processor 204 calls the instructions or programs in memory 205 to execute. Figure 13 The methods executed by each module shown achieve the same technical effect, and to avoid repetition, they will not be described in detail here.

[0407] Specifically, embodiments of this application also provide a network-side device. For example... Figure 19 As shown, the network-side device 300 includes a processor 301, a network interface 302, and a memory 303. This network-side device can be... Figure 13 The precoding information determination device is shown. The network interface 302 is, for example, a common public radio interface (CPRI).

[0408] Specifically, the network-side device 300 in this embodiment further includes: instructions or programs stored in memory 303 and executable on processor 301, wherein processor 301 calls the instructions or programs in memory 303 to execute. Figure 13 The methods executed by each module shown achieve the same technical effect, and to avoid repetition, they will not be described in detail here.

[0409] This application also provides a readable storage medium storing a program or instructions. When the program or instructions are executed by a processor, they implement the various processes of the above-described pre-encoded information determination method embodiments and achieve the same technical effects. To avoid repetition, they will not be described again here.

[0410] The processor mentioned above is the processor in the terminal described in the above embodiments. The readable storage medium includes computer-readable storage media, such as computer read-only memory (ROM), random access memory (RAM), magnetic disk, or optical disk. In some examples, the readable storage medium may be a non-transient readable storage medium.

[0411] This application embodiment also provides a chip, which includes a processor and a communication interface. The communication interface is coupled to the processor. The processor is used to run programs or instructions to implement the various processes of the above-described pre-encoded information determination method embodiment, and can achieve the same technical effect. To avoid repetition, it will not be described again here.

[0412] It should be understood that the chip mentioned in the embodiments of this application may also be referred to as a system-on-a-chip, system chip, chip system, or system-on-a-chip, etc.

[0413] This application also provides a computer program / program product, which is stored in a storage medium and executed by at least one processor to implement the various processes of the above-described pre-encoded information determination method embodiment, and can achieve the same technical effect. To avoid repetition, it will not be described again here.

[0414] This application also provides a wireless communication system, including: a first terminal, a second terminal, and a network-side device. The first terminal can be used to perform the steps of the precoding information determination method described above, the second terminal can be used to perform the steps of the precoding information determination method described above, and the network-side device can be used to perform the steps of the precoding information determination method described above.

[0415] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element. Furthermore, it should be noted that the scope of the methods and apparatuses in the embodiments of this application is not limited to performing functions in the order shown or discussed, but may also include performing functions substantially simultaneously or in the reverse order, depending on the functions involved. For example, the described methods may be performed in a different order than described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

[0416] From the above description of the embodiments, those skilled in the art can clearly understand that the methods of the above embodiments can be implemented by means of computer software products plus necessary general-purpose hardware platforms, and of course, they can also be implemented by hardware. The computer software product is stored in a storage medium (such as ROM, RAM, magnetic disk, optical disk, etc.) and includes several instructions to cause the terminal or network-side device to execute the methods described in the various embodiments of this application.

[0417] The embodiments of this application have been described above with reference to the accompanying drawings. However, this application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other implementations under the guidance of this application without departing from the spirit and scope of the claims. All of these implementations are within the protection scope of this application.

Claims

1. A method for determining precoded information, characterized in that, The method comprises: a network-side device sending first configuration information to at least one terminal, the first configuration information being used to configure M first information for at least one terminal, the first information comprising at least one of the following: angle information, time delay information, Doppler shift information; wherein M first information and N reference signal resources are used to determine precoding information, M and N are both positive integers.

2. The method of claim 1, wherein, The N reference signal resources satisfy at least one of the following: The N reference signal resources are periodic resources; The N reference signal resources belong to at least two resource sets.

3. The method of claim 2, wherein, In the case where the N reference signal resources belong to at least two resource sets, the downlink spatial domain transmission filter of the reference signal resources with different time domain resources in the same resource set is the same.

4. The method according to any one of claims 1 to 3, characterized in that, Each reference signal resource is associated with at least one of the M first information.

5. The method according to any one of claims 1 to 3, characterized in that, 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.

6. The method of claim 5, wherein, In the case where the second information comprises Doppler shift information, the Doppler measurement-related parameter corresponding to the second information satisfies at least one of the following: It is related to the resource configuration information of the reference signal resources in the first resource set; It is related to the resource configuration information of the reference signal resources with the same first sequence number in at least two first resource sets; wherein the second information is any one of the M first information; and the first resource set is the resource set associated with the second information.

7. The method according to any one of claims 1 to 6, characterized in that, The method further comprises: The network-side device sends at least one second configuration information to at least one terminal, the second configuration information being used to configure at least one terminal to report the precoding information; The network-side device receives at least one precoding information from at least one terminal.

8. The method of claim 7, 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.

9. The method according to claim 7 or 8, characterized in that, At least one terminal comprises a first terminal, and the first terminal is used at least for sensing function; the precoding information from the first terminal comprises at least one of the following: At least one first identifier; First digital precoding information; First precoding matrix indication (PMI); wherein the first identifier comprises at least one of the following: an identifier of the reference signal resource determined by the first terminal, an identifier of the resource set determined by the first terminal; The first digital precoding information comprises at least one of the following: the digital precoding information corresponding to the reference signal resource indicated by the first identifier, the digital precoding information corresponding to the resource set indicated by the first identifier.

10. The method of claim 9, wherein, The first digital precoding information indicates at least one of the following: At least one first spatial domain vector; At least one first spatial domain beam information; At least one first port selection information; At least one first precoding codebook; wherein the first port selection information is used to indicate the port of the reference signal selected by the first 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.

11. The method of claim 7 or 8, wherein, The at least one terminal includes a second terminal, and the second terminal is only used for a communication function; the precoding information from the second terminal includes at least one of the following: at least one second identifier; a second PMI; The second identifier includes at least one of the following: an identifier of the reference signal resource determined by the second terminal, and an identifier of a resource set determined by the second terminal.

12. The method according to any one of claims 1 to 11, characterized in that, The at least one terminal includes a first terminal, and the first terminal is at least used for a sensing function; the method further includes: The network-side device receives first measurement information from the first terminal, and the first measurement information includes at least one of the following: indication information of whether a sensing target is detected; a number of measured sensing targets; a parameter estimation result of a detected sensing target; spectrum information.

13. A method of precoding information determination, characterized by, The method includes: The first terminal receives first configuration information from a network-side device, and the first configuration information is used to configure M first information for at least one terminal, at least one of the terminals includes the first terminal, and the first terminal is at least used for a sensing function; the first information includes at least one of the following: angle information, time delay information, and Doppler frequency shift information; The first terminal determines precoding information based on M first information and N reference signal resources; Wherein, M and N are positive integers.

14. The method of claim 13, wherein, The method further includes: The first terminal receives at least one second configuration information from the network-side device, and the second configuration information is used to configure at least one terminal to report the precoding information; The first terminal sends the precoding information to the network-side device.

15. The method of claim 14, wherein, The precoding information includes at least one of the following: at least one first identifier; first digital precoding information; a first PMI; The first identifier includes at least one of the following: an identifier of the reference signal resource determined by the first terminal, and an identifier of a resource set determined by the first terminal; The first digital precoding information includes at least one of the following: digital precoding information corresponding to the reference signal resource indicated by the first identifier, and digital precoding information corresponding to a resource set indicated by the first identifier.

16. The method of claim 15, wherein, At least one of the first identifiers includes at least one of the following: an identifier of a second reference signal resource; an identifier of a second resource set; The second reference signal resource is at least one of the reference signal resources associated with at least part of the first information in the M first information, which meets a predefined sensing requirement; The second resource set is the resource set to which the second reference signal resource belongs.

17. The method according to any one of claims 13 to 16, characterized in that, The method further includes: The first terminal sends 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; a number of measured sensing targets; a parameter estimation result of a detected sensing target; spectrum information.

18. A method for determining precoded information, characterized in that, The method includes: The second terminal receives first configuration information from a network side device, the first configuration information being used for configuring M first information for at least one terminal, the at least one terminal including the second terminal, the second terminal being used only for a communication function, the first information including at least one of the following: angle information, time delay information, and Doppler shift information; The second terminal determines precoding information based on M first information and N reference signal resources; Wherein, M and N are positive integers.

19. The method of claim 18, wherein, The method further includes: The second terminal receives at least one second configuration information from the network side device, the second configuration information being used for configuring the at least one terminal to report the precoding information; The second terminal sends the precoding information to the network side device.

20. The method of claim 19, wherein, The precoding information includes at least one of the following: At least one second identifier; Second PMI; Wherein, the second identifier includes at least one of the following: an identifier of the reference signal resource determined by the second terminal, and an identifier of a resource set determined by the second terminal.

21. The method of claim 20, wherein, At least one of the second identifier includes at least one of the following: An identifier of a second reference signal resource; An identifier of a second resource set; An identifier of a third reference signal resource; An identifier of a third resource set; Wherein, the second reference signal resource is at least one of the reference signal resources associated with at least part of the first information in the M first information, which meets a predefined sensing requirement; The second resource set is the resource set to which the second reference signal resource belongs; The third reference signal resource is at least one of the reference signal resources associated with at least part of the first information in the M first information, which meets a predefined communication requirement; The third resource set is the resource set to which the third reference signal resource belongs.

22. A precoded information determination device, characterized in that, The precoding information determination apparatus includes a sending module; The sending module is configured to send first configuration information to at least one terminal, the first configuration information being used for configuring M first information for the at least one terminal, the first information including at least one of the following: angle information, time delay information, and Doppler shift information; Wherein, M first information and N reference signal resources are used to determine precoding information, and M and N are positive integers.

23. The apparatus of claim 22, wherein, N reference signal resources meet at least one of the following: N reference signal resources are periodic resources; N reference signal resources belong to at least two resource sets.

24. The apparatus of claim 23, wherein, In the case where N reference signal resources belong to at least two resource sets, the downlink spatial domain transmission filter of the reference signal resource with different time domain resources in the same resource set is the same.

25. The apparatus of any one of claims 22-24, wherein, Each reference signal resource is associated with at least one of M first information.

26. The apparatus of any one of claims 22-24, wherein, N reference signal resources belong to at least two resource sets, and one resource set is associated with at least one of M first information.

27. The apparatus of claim 26, wherein, In the case where the second information includes Doppler shift information, the Doppler measurement related parameters corresponding to the second information meet at least one of the following: information related to the resource configuration information of the reference signal resource in the first resource set; information related to the resource configuration information of the reference signal resource with the same first sequence number in at least two first resource sets; wherein the second information is any one of the M first information; and the first resource set is the resource set associated with the second information.

28. The apparatus of any of claims 22-27, wherein, The sending module is further configured to send at least one second configuration information to at least one terminal, the second configuration information being used for configuring the at least one terminal to report the precoding information. The precoding information determination apparatus further comprises a receiving module. The receiving module is configured to receive at least one precoding information from at least one terminal.

29. The apparatus of claim 28, wherein, 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.

30. The apparatus of claim 28 or 29, wherein, The at least one terminal comprises a first terminal, and the first terminal is used at least for sensing function; and the precoding information from the first terminal comprises at least one of the following: at least one first identifier; first digital precoding information; first PMI; wherein the first identifier comprises at least one of the following: an identifier of the reference signal resource determined by the first terminal, and an identifier of a resource set determined by the first terminal; the first digital precoding information comprises at least one of the following: digital precoding information corresponding to the reference signal resource indicated by the first identifier, and digital precoding information corresponding to the resource set indicated by the first identifier.

31. The apparatus of claim 30, wherein, The first digital precoding information indicates at least one of the following: at least one first spatial domain vector; at least one first spatial domain beam information; at least one first port selection information; at least one first precoding codebook; wherein the first port selection information is used for indicating a port of a reference signal selected by the first 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.

32. The apparatus of claim 28 or 29, wherein, The at least one terminal comprises a second terminal, and the second terminal is used only for communication function; and the precoding information from the second terminal comprises at least one of the following: at least one second identifier; second PMI; wherein the second identifier comprises at least one of the following: an identifier of the reference signal resource determined by the second terminal, and an identifier of a resource set determined by the second terminal.

33. The apparatus of any one of claims 22-32, wherein, The at least one terminal comprises a first terminal, and the first terminal is used at least for sensing function; and the precoding information determination apparatus further comprises a receiving module. The receiving module is configured to receive first measurement information from the first terminal, and the first measurement information comprises at least one of the following: indication information of whether a sensing target is detected; a number of sensing targets measured; a parameter estimation result of a detected sensing target; spectrum information.

34. A precoding information determination apparatus, characterized by comprising: The precoding information determination apparatus comprises a receiving module and a processing module; The receiving module is configured to receive first configuration information from a network side device, the first configuration information being used to configure M first information for at least one terminal, the at least one terminal including the precoding information determination apparatus, the precoding information determination apparatus being used for sensing function, and the first information including at least one of angle information, time delay information, and Doppler frequency shift information. The processing module is configured to determine precoding information based on the M first information configured by the first configuration information received by the receiving module and N reference signal resources. M and N are positive integers.

35. The apparatus of claim 34, wherein, 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 to configure the at least one terminal to report the precoding information. The precoding information determination apparatus further includes a sending module. The sending module is configured to send the precoding information to the network side device.

36. The device of claim 35, wherein, The precoding information includes at least one of the following: At least one first identifier; First digital precoding information; First PMI. The first identifier includes at least one of the following: an identifier of the reference signal resource determined by the first terminal and an identifier of a resource set determined by the first terminal. The first digital precoding information includes at least one of the following: digital precoding information corresponding to the reference signal resource indicated by the first identifier and digital precoding information corresponding to the resource set indicated by the first identifier.

37. The device of claim 36, wherein, At least one of the first identifiers includes at least one of the following: An identifier of a second reference signal resource; An identifier of a second resource set The second reference signal resource is at least one reference signal resource that meets a predefined sensing requirement among the reference signal resources associated with at least part of the M first information. The second resource set is the resource set to which the second reference signal resource belongs.

38. The apparatus of any one of claims 34-37, wherein, The precoding information determination apparatus further includes a sending module. The sending module is configured to send first measurement information to the network side device, the first measurement information including at least one of the following: Indication information of whether a sensing target is detected; A number of sensing targets measured; Parameter estimation results of the detected sensing target; and Spectrum information.

39. A precoded information determination device, characterized in that, The precoding information determination apparatus includes a receiving module and a processing module. The receiving module is configured to receive first configuration information from a network side device, the first configuration information being used to configure M first information for at least one terminal, the at least one terminal including the precoding information determination apparatus, the precoding information determination apparatus being used for communication function, and the first information including at least one of angle information, time delay information, and Doppler frequency shift information. The processing module is configured to determine precoding information based on the M first information configured by the first configuration information received by the receiving module and N reference signal resources. M and N are positive integers.

40. The device of claim 39, wherein, 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 at least one terminal to report the precoding information. The precoding information determining apparatus further includes a sending module. The sending module is configured to send the precoding information to the network-side device.

41. The device of claim 40, wherein, The precoding information includes at least one of the following: at least one second identifier; a second PMI; The second identifier includes at least one of the following:

42. The device of claim 41, wherein, an identifier of the reference signal resource determined by the second terminal, and an identifier of a resource set determined by the second terminal. The at least one second identifier includes at least one of the following: an identifier of a second reference signal resource; an identifier of a second resource set; an identifier of a third reference signal resource; an identifier of a third resource set; The second reference signal resource is at least one reference signal resource, among the reference signal resources associated with at least part of the first information, that meets a predefined sensing requirement; The second resource set is the resource set to which the second reference signal resource belongs; 43. A network-side device, comprising: The third reference signal resource is at least one reference signal resource, among the reference signal resources associated with at least part of the first information, that meets a predefined communication requirement; 44. A terminal, characterized by The third resource set is the resource set to which the third reference signal resource belongs.

45. A readable storage medium characterized by, 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 determining method according to any one of claims 1 to 12. 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 determining method according to any one of claims 13 to 17, or implement the steps of the precoding information determining method according to any one of claims 18 to 21. A readable storage medium storing programs or instructions executable by a processor to implement the precoding information determining method according to any one of claims 1 to 12, or implement the steps of the precoding information determining method according to any one of claims 13 to 17, or implement the steps of the precoding information determining method according to any one of claims 18 to 21.

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