Method for requesting sensing assistance data, method for transmitting sensing assistance data, and terminal and network-side device

Abstract

The present application belongs to the technical field of wireless communications. Disclosed are a method for requesting sensing assistance data, a method for transmitting sensing assistance data, and a terminal and a network-side device. The method for requesting sensing assistance data in the embodiments of the present application comprises: a terminal sending a first message to a network-side device, wherein the first message is used for requesting sensing assistance data, and the sensing assistance data is used for assisting the terminal in sensing and comprises at least one of reference signal assistance data, sensing computing assistance data and sensor assistance data.

Description

Request method, transmission method, terminal and network side equipment for perception auxiliary data

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application claims priority to Chinese Patent Application No. 202410360996.0 filed on March 27, 2024, the entire contents of which are incorporated herein by reference. Technical Field

[0003] The present application belongs to the field of wireless communication technology, and specifically relates to a method for requesting and transmitting perception-assisted data, a terminal, and a network-side device. Background Art

[0004] Future Beyond 5G (B5G) and 6G wireless communication systems are expected to provide a variety of high-precision sensing services, such as indoor positioning for robot navigation, Wi-Fi sensing for smart homes, and radar sensing for autonomous vehicles. Sensing and communication systems are typically designed separately and occupy different frequency bands. Integrated Sensing and Communication (ISAC) enables sensing and communication systems to share the same frequency band and hardware, improving frequency efficiency and reducing hardware costs. ISAC will become a key technology for future wireless communication systems, supporting many important application scenarios. Typical applications of ISAC include navigation and obstacle avoidance for autonomous vehicles, indoor positioning and activity recognition based on Wi-Fi, communication and sensing for unmanned aerial vehicles, extended reality (XR), and radar and communication integration. Each application has different requirements, limitations, and regulatory issues. ISAC has attracted significant research interest and attention from both academia and industry.

[0005] In communication and perception fusion, how to enable user equipment (UE, also known as terminal) to obtain the required perception results more flexibly is a problem that needs to be solved. Summary of the Invention

[0006] The embodiments of the present application provide a method for requesting and transmitting perception-assisted data, a terminal, and a network-side device, which can solve the problem of obtaining the required perception results more flexibly.

[0007] In a first aspect, a method for requesting perception assistance data is provided, comprising:

[0008] The terminal sends a first message to the network side device, where the first message is used to request perception auxiliary data, where the perception auxiliary data is used to assist the terminal in perception and includes at least one of reference signal auxiliary data, perception calculation auxiliary data, and sensor auxiliary data.

[0009] In a second aspect, a method for transmitting perception assistance data is provided, including:

[0010] The network-side device receives a first message sent by the terminal, where the first message is used to request perception assistance data, where the perception assistance data is used to assist the terminal in perception, including at least one of reference signal assistance data, perception calculation assistance data, and sensor assistance data;

[0011] The network-side device sends a second message to the terminal based on the first message, where the second message is used to provide the perception assistance data, or sends a third message to the terminal, where the third message is used to reject the request for the perception assistance data.

[0012] According to a third aspect, a device for requesting perception assistance data is provided, including:

[0013] The sending module is used to send a first message to the network side device, where the first message is used to request perception auxiliary data, and the perception auxiliary data is used to assist the terminal in perception, including at least one of reference signal auxiliary data, perception calculation auxiliary data, and sensor auxiliary data.

[0014] In a fourth aspect, a device for transmitting perception assistance data is provided, including:

[0015] a receiving module, configured to receive a first message sent by a terminal, where the first message is used to request perception assistance data, where the perception assistance data is used to assist the terminal in perception and includes at least one of reference signal assistance data, perception calculation assistance data, and sensor assistance data;

[0016] A sending module is used to send a second message to the terminal according to the first message, where the second message is used to provide the perception assistance data, or to send a third message to the terminal, where the third message is used to reject the request for the perception assistance data.

[0017] In a fifth aspect, a terminal is provided, which includes a processor and a memory, wherein the memory stores a program or instruction that can be run on the processor, and when the program or instruction is executed by the processor, the steps of the method for transmitting perception-assisted data as described in the first aspect are implemented.

[0018] In the sixth aspect, a terminal is provided, comprising a processor and a communication interface, wherein the communication interface is used to send a first message to a network side device, the first message is used to request perception auxiliary data, and the perception auxiliary data is used to assist the terminal in perception, including at least one of reference signal auxiliary data, perception calculation auxiliary data, and sensor auxiliary data.

[0019] In the seventh aspect, a network side device is provided, which includes a processor and a memory, wherein the memory stores a program or instruction that can be run on the processor, and when the program or instruction is executed by the processor, the steps of the method for transmitting perception auxiliary data as described in the second aspect are implemented.

[0020] In the eighth aspect, a network side device is provided, including a processor and a communication interface, wherein the communication interface is used to receive a first message sent by a terminal, the first message is used to request perception auxiliary data; and, based on the first message, send a second message to the terminal, the second message is used to provide the perception auxiliary data, or send a third message to the terminal, the third message is used to reject the request for the perception auxiliary data, the perception auxiliary data is used to assist the terminal in perception, and includes at least one of reference signal auxiliary data, perception calculation auxiliary data, and sensor auxiliary data.

[0021] In the ninth aspect, a readable storage medium is provided, on which a program or instruction is stored. When the program or instruction is executed by a processor, the steps of the method for transmitting perception-assisted data as described in the first aspect are implemented, or the steps of the method for transmitting perception-assisted data as described in the second aspect are implemented.

[0022] In the tenth aspect, a wireless communication system is provided, including: a terminal and a network side device, wherein the terminal can be used to execute the steps of the method for transmitting perception-assisted data as described in the first aspect, and the network side device can be used to execute the steps of the method for transmitting perception-assisted data as described in the second aspect.

[0023] In the eleventh aspect, a chip is provided, which includes a processor and a communication interface, the communication interface and the processor are coupled, and the processor is used to run a program or instruction to implement the method for transmitting perception-assisted data as described in the first aspect, or to implement the method for transmitting perception-assisted data as described in the second aspect.

[0024] In the twelfth aspect, a computer program / program product is provided, which is stored in a storage medium. When the computer program / program product is executed by at least one processor, it implements the steps of the method for requesting perception assistance data as described in the first aspect above, or implements the steps of transmitting perception assistance data as described in the second aspect above.

[0025] In an embodiment of the present application, the terminal requests the required perception assistance data from the network-side device during perception, which enables the terminal to use the perception assistance data to assist in the perception measurement of the perception signal (reference signal and / or downlink data signal), thereby being able to more flexibly utilize the reference signal and / or downlink data signal of the air interface to obtain the required perception result, thereby improving perception performance. At the same time, the method of obtaining the perception result through the perception assistance data can minimize the exposure of user perception-related information, thereby providing perception privacy and security. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] FIG1 is a block diagram of a wireless communication system applicable to embodiments of the present application;

[0027] FIG2 is a schematic diagram of different perception modes for communication perception integration;

[0028] Figure 3 is a schematic diagram of single-station sensing modes LOS and NLOS;

[0029] Figure 4 is a schematic diagram of the dual-station sensing modes LOS and NLOS;

[0030] FIG5 is a schematic diagram of a flow chart of a method for requesting perception assistance data according to an embodiment of the present application;

[0031] FIG6 is a schematic flow chart of a method for transmitting perception assistance data according to an embodiment of the present application;

[0032] FIG7 is a schematic diagram of the structure of a device for requesting perception assistance data according to an embodiment of the present application;

[0033] FIG8 is a schematic structural diagram of a device for transmitting perception assistance data according to an embodiment of the present application;

[0034] FIG9 is a schematic structural diagram of a communication device according to an embodiment of the present application;

[0035] FIG10 is a schematic diagram of the hardware structure of a terminal according to an embodiment of the present application;

[0036] FIG11 is a schematic diagram of a hardware structure of a network-side device according to an embodiment of the present application;

[0037] FIG12 is a second schematic diagram of the hardware structure of the network side device according to an embodiment of the present application. DETAILED DESCRIPTION

[0038] The following will be combined with the accompanying drawings in the embodiments of this application to clearly describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field are within the scope of protection of this application.

[0039] The terms "first", "second", etc. in this application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the terms used in this way are interchangeable where appropriate, so that the embodiments of the present application can be implemented in an order other than those illustrated or described herein, and the objects distinguished by "first" and "second" are generally of the same type, and do not limit the number of objects, for example, the first object can be one or more. In addition, "or" in this application represents at least one of the connected objects. For example, "A or B" covers three options, namely, Option 1: including A but not including B; Option 2: including B but not including A; Option 3: including both A and B. The character " / " generally indicates that the objects associated before and after are in an "or" relationship.

[0040] The term "indication" in this application can be either a direct indication (or explicit indication) or an indirect indication (or implicit indication). A direct indication can be understood as the sender explicitly informing the receiver of specific information, the operation to be performed, or the requested result, etc. in the instruction sent; an indirect indication can be understood as the receiver determining the corresponding information based on the instruction sent by the sender, or making a judgment and determining the operation to be performed or the requested result, etc. based on the judgment result.

[0041] It is worth noting that the technology described in the embodiments of the present application is not limited to the Long Term Evolution (LTE) / LTE-Advanced (LTE-A) system, but can also be used in other wireless communication systems, such as Code Division Multiple Access (CDMA), Time Division Multiple Access (TDMA), Frequency Division Multiple Access (FDMA), Orthogonal Frequency Division Multiple Access (OFDMA), Single-carrier Frequency Division Multiple Access (SC-FDMA) or other systems. The terms "system" and "network" in the embodiments of the present application are often used interchangeably, and the described technology can be used for the systems and radio technologies mentioned above, as well as for other systems and radio technologies. The following description describes a New Radio (NR) system for example purposes, and NR terminology is used in most of the following description, but these technologies can also be applied to systems other than NR systems, such as 6th Generation (6G) communication systems.

[0042] FIG1 is a block diagram of a wireless communication system applicable to an embodiment of the present application. The wireless communication system includes a terminal 11 and a network-side device 12. The terminal 11 may be a mobile phone, a tablet computer (Tablet Personal Computer), a laptop computer (Laptop Computer), a notebook computer, a personal digital assistant (PDA), a handheld computer, a netbook, an ultra-mobile personal computer (UMPC), a mobile internet device (MID), an augmented reality (AR), a virtual reality (VR) device, a robot, a wearable device (Wearable Device), an aircraft (Flight Vehicle), a vehicle-mounted device (VUE), a ship-mounted device, a pedestrian user equipment (PUE), a smart home (home appliances with wireless communication capabilities, such as refrigerators, televisions, washing machines, or furniture), a game console, a personal computer (PC), an ATM, or a self-service machine, or other terminal-side devices. Wearable devices include: smart watches, smart bracelets, smart headphones, smart glasses, smart jewelry (smart bracelets, smart bracelets, smart rings, smart necklaces, smart anklets, smart anklets, etc.), smart wristbands, smart clothing, etc. Among them, the vehicle-mounted device can also be called a vehicle-mounted terminal, a vehicle-mounted controller, a vehicle-mounted module, a vehicle-mounted component, a vehicle-mounted chip or a vehicle-mounted unit, etc. It should be noted that the specific type of the terminal 11 is not limited in the embodiment of the present application. The network side device 12 may include an access network device or a core network device, wherein the access network device may also be called a radio access network (Radio Access Network, RAN) device, a radio access network function or a radio access network unit. The access network device may include a base station, a wireless local area network (WLAN) access point (AP) or a wireless fidelity (WiFi) node, etc.Among them, the base station can be referred to as Node B (NB), Evolved Node B (eNB), the next generation Node B (gNB), New Radio Node B (NR Node 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 (home evolved Node B), Transmission Reception Point (TRP) or other appropriate terms in the relevant field. As long as the same technical effect is achieved, the base station is not limited to specific technical vocabulary. It should be noted that in the embodiment of the present application, only the base station in the NR system is used as an example for introduction, and the specific type of the base station is not limited.

[0043] The core network device may include but is not limited to at least one of the following: core network node, core network function, mobility management entity (MME), access mobility management function (AMF), session management function (SMF), user plane function (UPF), policy control function (PCF), policy and charging rules function unit (PCRF), edge application server discovery function (EASDF), unified data management (UDM), unified data storage (UDR), home user server (HSS), centralized network configuration (CNC), network storage function (NRF), network exposure function (NEF), local NEF (L-NEF), binding support function (BNSF), network access function (UE ... Function, BSF), application function (Application Function, AF), etc. It should be noted that in the embodiment of the present application, only the core network device in the NR system is introduced as an example, and the specific type of the core network device is not limited.

[0044] The following is a brief description of the technical content involved in this application.

[0045] 1. Communication and perception integration / synaesthesia integration:

[0046] Integrated Sensing and Communication (ISAC) achieves low-cost integration of both communication and perception functions through shared hardware and software-defined functionality. Its key features include: a unified and simplified architecture; reconfigurable and scalable functionality; and improved efficiency and reduced costs. The advantages of ISAC are threefold: reduced equipment cost and size; improved spectrum utilization; and enhanced system performance.

[0047] At present, typical communication perception integration scenarios that are expected to be achieved through technical upgrades based on the 5G communication system architecture are shown in Table 1.

[0048] Table 1 Typical scenarios of communication perception integration

[0049] There are six basic sensing modes, depending on the difference between the sending and receiving nodes of the sensing signal, as shown in Figure 2:

[0050] (1) Base station self-transmitting and self-receiving sensing: In this sensing mode, base station A sends a sensing signal and performs sensing measurement by receiving the echo of the sensing signal.

[0051] (2) Inter-base station air interface sensing: Base station B receives the sensing signal sent by base station A and performs sensing measurements.

[0052] (3) Uplink air interface perception: Base station A receives the perception signal sent by terminal A and performs perception measurement.

[0053] (4) Downlink air interface perception: Terminal B receives the perception signal sent by base station B and performs perception measurement.

[0054] (5) Terminal self-transmitting and self-receiving perception: Terminal A sends a perception signal and performs perception measurement by receiving the echo of the perception signal.

[0055] (6) Sidelink perception between terminals: Terminal B receives the perception signal sent by terminal A and performs perception measurements.

[0056] It's worth noting that each sensing method in Figure 2 uses one sensing signal transmitting node and one sensing signal receiving node as examples. In actual systems, one or more sensing methods can be selected based on different sensing use cases and requirements, and each sensing method can have one or more transmitting and receiving nodes. The sensing targets in Figure 2 use people and vehicles as examples, assuming neither person nor vehicle carries or has installed signal transceiver / receiver equipment. In actual scenarios, the range of sensing targets will be much richer.

[0057] 2. Perception of Line of Sight (LOS) and Non-Line of Sight (NLOS)

[0058] In communications, LOS and NLOS are defined based on the line-of-sight between the transmitter and receiver. In perception, LOS and NLOS are determined based on whether there is any obstruction between the sensor (sender or receiver) and the target. If there is obstruction, it is considered NLOS; if there is no obstruction, it is considered LOS.

[0059] The following describes LOS and NLOS in the single-station sensing mode and the dual-station sensing mode.

[0060] 1) In single-station sensing mode, based on channel reciprocity, the path from the sensing sender to the sensing target and the path from the sensing target to the sensing receiver can be considered to have the same LOS probability. There are two cases, as shown in Figure 3.

[0061] 2) In the dual-station sensing mode, the LOS probabilities of the path from the sensing sender to the sensing target and the path from the sensing target to the sensing receiver are different and need to be calculated separately. There are four cases as shown in Figure 4.

[0062] The following, in conjunction with the accompanying drawings, describes in detail the request method, transmission method, terminal and network-side device for perception-assisted data provided by the embodiments of the present application through some embodiments and their application scenarios.

[0063] Referring to FIG. 5 , an embodiment of the present application provides a method for requesting perception assistance data, including:

[0064] Step S11: The terminal sends a first message to the network side device, where the first message is used to request perception auxiliary data, and the perception auxiliary data is used to assist the terminal in perception, including at least one of reference signal auxiliary data, perception calculation auxiliary data, and sensor auxiliary data.

[0065] The reference signal auxiliary data is used to assist the terminal in performing perception measurement on the reference signal, and optionally, may include configuration information of the reference signal; the perception calculation auxiliary data is used to assist the terminal in calculating the perception measurement result, and optionally, may include at least one of the perception signal sending node information and the transmission path information. The sensor auxiliary data is used to assist the terminal in obtaining the perception result, and optionally, may include the perception information of the sensor. The sensor refers to a device that performs perception based on non-3GPP defined wireless signals, for example, including at least one of: a traditional radar, a camera, a thermometer, a rain gauge, a wireless local area network (WLAN), Bluetooth, etc. In some embodiments, optionally, the perception auxiliary data may also be defined as including at least one of reference signal auxiliary data and non-reference signal auxiliary data, and the non-reference signal auxiliary data includes at least one of perception calculation auxiliary data and sensor auxiliary data.

[0066] In the embodiment of the present application, the network side device may be a wireless access network node or a core network network function node.

[0067] In an embodiment of the present application, the terminal requests the required perception assistance data from the network-side device during perception, which enables the terminal to use the perception assistance data to assist in the perception measurement of the perception signal (reference signal and / or downlink data signal), thereby being able to more flexibly utilize the reference signal and / or downlink data signal of the air interface to obtain the required perception result, thereby improving perception performance. At the same time, the method of obtaining the perception result through the perception assistance data can minimize the exposure of user perception-related information, thereby providing perception privacy and security.

[0068] It should be noted that in the embodiment of the present application, the perception signal that can be used by the terminal in perception includes at least one of a reference signal and a downlink data signal. The reference signal includes at least one of the following: a perception reference signal dedicated to perception, a communication reference signal dedicated to communication, and a reference signal that can be used for both perception and communication. In the following description, they are collectively referred to as reference signals and will not be described one by one. The downlink data signal refers to the downlink data received by the terminal during communication. Once the terminal successfully demodulates (for example, the cyclic redundancy check (CRC) is correct), the terminal can use the successfully demodulated signal as a known signal and then perform perception measurement data estimation.

[0069] In some embodiments, optionally, the first message includes at least one of the following:

[0070] 1) Cell ID that provides sensing assistance data;

[0071] In some embodiments, optionally, the cell identifier is determined by the terminal according to at least one of an area where the sensing target is located, an area where the sensing area is located, and a capability of the terminal.

[0072] The cell identifier that provides the sensing assistance data may also be referred to as the cell identifier of the area corresponding to the sensing target or sensing area.

[0073] For example, when the sensing target is a terminal, the cell identifier providing sensing assistance data can be the serving cell ID. If the terminal has both a primary cell and a secondary cell, the corresponding cell identifier is the primary cell identifier. When the sensing area is the sensing area associated with the terminal (for example, obstacle sensing within 20 meters of the terminal), the terminal determines the cell identifier corresponding to the sensing area based on the sensing range and measurement as the cell identifier providing sensing assistance data. The number of cell identifiers may be 1 or greater depending on whether the terminal is located at the cell edge. For example, if the terminal is in the overlapping area of ​​cell A and cell B, based on the sensing range mapping relationship, this field will be cell A and cell B.

[0074] 2) Perception-assisted data types;

[0075] In some embodiments, optionally, the perception assistance data type includes at least one of reference signal assistance data, perception calculation assistance data, and sensor assistance data;

[0076] or,

[0077] The perception assistance data type includes at least one of reference signal assistance data and non-reference signal assistance data.

[0078] 3) a request indication for sensing the area validity of the assistance data;

[0079] Optionally, when the first message includes this field or the value of the specified information unit is specified (for example, a request is indicated when the specified bit is 1, and no request is indicated when the bit is 0), it indicates a request for a valid area of ​​the perception assistance data.

[0080] 4) a request indication for sensing the validity period of the assistance data;

[0081] When this field is included in the first message or the value of the specified information unit is specified (for example, a request is indicated when the specified bit is 1, and no request is indicated when the bit is 0), it indicates a request for the valid time information of the perception assistance data.

[0082] 5) Perceive the target reference position;

[0083] In an embodiment of the present application, optionally, the terminal can determine one or more perception target reference positions based on perception requirements, etc., and the perception target reference position information can be represented by latitude, longitude, and altitude, etc. For example, the terminal selects several typical positions (such as the edge position of the perception area, the center position of the perception area, etc.) within the perception area as reference perception target positions. If the terminal requests the network side device to provide the expected possibility of LOS path transmission from the perception signal transmission and reception point (TRP) to the perception target, this field is used by the network side device to determine the expected possibility of LOS path transmission. The perception signal includes at least one of a reference signal and a downlink data signal. The expected possibility can also be called the expected probability.

[0084] 6) Segment information of the first message;

[0085] When the first message is large, the first message may be divided into multiple segments and transmitted in segments. The segmentation information of the first message may include at least one of the following: indication information indicating whether the first message is one of the multiple segments, indication information indicating the sequence number of the current segment, and indication information indicating the size of the current segment.

[0086] 7) Periodic sensing assistance data request indication.

[0087] This field is used to indicate a request for periodic transmission of perception assistance data.

[0088] If the terminal requests reference signal assistance data, one method is for the terminal to provide the required reference signal requirements. The network side equipment determines whether a reference signal that meets the requirements is available based on air interface resources and available reference signals. If a reference signal that meets the requirements is available, the network side equipment provides the configuration information of the reference signal in the response message.

[0089] In some embodiments, optionally, if the terminal provides a requirement for a required reference signal, the first message further includes at least one of the following:

[0090] 1) The minimum bandwidth of the required reference signal refers to the minimum total frequency domain bandwidth occupied by the reference signal;

[0091] 2) The maximum repetition period of the required reference signal, which refers to how often the reference signal can be repeated;

[0092] 3) The minimum time domain length of the required reference signal refers to the minimum time domain time occupied by the reference signal;

[0093] 4) Minimum transmit power of the required reference signal, which refers to the minimum transmit power of the reference signal;

[0094] 5) The minimum waveform quality of the required reference signal refers to the side lobes of the reference signal waveform, such as the Doppler side lobe level not higher than X, the range side lobe not higher than Y, and the peak-to-average ratio not higher than Z;

[0095] 6) The minimum number of ports required for reference signals refers to the minimum number of ports for sending reference signals;

[0096] 7) The maximum beamwidth of the required reference signal, which is the angle between two specified power points of the beam. For example, in radar meteorology, the beamwidth is defined as the angle between two half-power points of the beam. The maximum beamwidth includes at least one of the vertical beamwidth and the horizontal beamwidth;

[0097] 8) Minimum number of different TRPs for transmitting the required reference signal. If this parameter is not provided, the network device, when providing reference signal assistance data, shall provide at least one TRP for the single frequency network (SFN) that the terminal can obtain, such as the serving TRP; or the network device shall provide at least one TPR corresponding to the aforementioned "cell identifier of the area corresponding to the sensing target or sensing area".

[0098] If the terminal requests reference signal auxiliary data, another method is that the terminal determines the requested reference signal based on the reference signal configured by the network and its own needs, then the network side device provides at least one TRP for the terminal to obtain SFN, such as service TRP.

[0099] In some embodiments, optionally, if the terminal determines the requested reference signal, the first message further includes at least one of the following:

[0100] 1) a reference signal identifier, wherein the reference signal identifier includes at least one of a reference signal type identifier and a configuration identifier;

[0101] Optionally, the reference signal identifier at least indicates the reference signal type (such as Channel State Information Reference Signal, CSI-RS), Positioning Reference Signal (Positioning Reference Signals, PRS), Demodulation Reference Signal (Demodulation Reference Signal, DMRS), etc.).

[0102] Optionally, the reference signal identifier may also indicate configuration information of one or a group of reference signals. In an embodiment of the present application, one method is to indicate a reference signal type identifier (such as PRS, on-demand PRS, CSI-RS) in the reference signal identifier. If it is also necessary to indicate the configuration of one or a group of reference signals, a reference signal configuration identifier may be added to indicate the configuration of each reference signal, for example, indicating which reference signal configuration is configured by RRC. Another method is to indicate the type identifier of the reference signal and the configuration identifier of the reference signal through the reference signal identifier.

[0103] 2) a request indication of the departure angle of the reference signal;

[0104] Optionally, when the first message includes this field or the value of the specified information unit is specified (for example, when the specified bit is 1, it indicates a request, and when the bit is 0, it indicates no request), it indicates requesting the departure angle information of the reference signal.

[0105] 3) a request indication of the arrival angle of the reference signal;

[0106] Optionally, when the first message includes this field or the value of the specified information unit is specified (for example, when the specified bit is 1, it indicates a request, and when the bit is 0, it indicates no request), it indicates requesting the arrival angle information of the reference signal.

[0107] 4) Request indication of reference signal beam;

[0108] Optionally, when this field is included in the first message or by specifying the value of the information unit (for example, a request is indicated when the specified bit is 1, and no request is indicated when the bit is 0), it indicates a request for the beam information of the reference signal.

[0109] 5) Quasi Co-Location (QCL) request indication of the reference signal.

[0110] Optionally, when this field is included in the first message or the value of the specified information unit is specified (for example, a request is indicated when the specified bit is 1, and no request is indicated when the bit is 0), it indicates a request for the QCL information of the reference signal, such as whether the port of the reference signal is quasi-co-located, and for example, the reference signal includes multiple resources, each resource is QCL with a synchronization signal block (Synchronization Signal and PBCH block, SSB), and the QCL includes Type A, B, C or D.

[0111] When the terminal perceives based on the downlink data signal, or when the terminal perceives based on the downlink data signal or the communication reference signal, the configuration information of the downlink data signal or the configuration information of the communication reference signal can be obtained through the existing communication protocol. In some perception situations, such as estimating the position or speed of the perception target, the terminal also needs to request non-reference signal auxiliary data (such as the position information of the signal sending TRP, etc.). In another case, the terminal can also request both reference signal auxiliary data and non-reference signal auxiliary data. For example, the terminal requests reference signal auxiliary data based on the perception requirements for reference signal bandwidth, duration, etc., and also requests auxiliary data of non-reference signals for calculating the perception results or improving the accuracy of the perception results.

[0112] In some embodiments, optionally, if the terminal requests non-reference signal assistance data (such as perceptual computing assistance data), the first message further includes at least one of the following:

[0113] 1) Send a request for the location information of the TRP of the sensing signal;

[0114] Optionally, when this field is included in the first message or by specifying the value of the information unit (for example, when the specified bit is 1, it indicates a request, and when the bit is 0, it indicates no request), it indicates the location information of the TRP requesting to send the perception signal.

[0115] The perception signal includes at least one of a reference signal and a downlink data signal.

[0116] In some embodiments, optionally, when the terminal uses downlink data for perception, the TRP in the perception calculation assistance data is the TRP of the sent downlink data;

[0117] In some embodiments, optionally, when the terminal uses a reference signal for sensing, existing CSI-RS configuration information in the communication has been obtained through the communication process, then the TRP in the sensing calculation auxiliary data is the TRP of the transmitted reference signal;

[0118] In some embodiments, optionally, the terminal requests both reference signal assistance data and the location of the TRP corresponding to the reference signal.

[0119] 2) Sending a request indication for time synchronization information between the reference TRP of the sensing signal and the neighboring TPR;

[0120] Optionally, when this field is included in the first message or by specifying the value of the information unit (for example, when the specified bit is 1, it indicates a request, and when the bit is 0, it indicates no request), it indicates a request for time synchronization information between the reference TRP and neighboring TRPs.

[0121] The reference TRP is a TRP used to provide a time baseline. For example, the time difference between the adjacent TRP and the reference TRP is calculated based on the time of the reference TRP.

[0122] In one embodiment, optionally, the reference TRP is the TRP of the terminal's serving cell (or primary serving cell).

[0123] 3) a TRP sending a sensing signal to send (Tx) timing error group information request indication;

[0124] One definition of a TRP Tx timing error group is that the Tx timing errors associated with TRP transmissions on one or more reference signal resources are within a certain range. For example, TRPs with a common clock source typically have smaller timing errors.

[0125] Optionally, when the first message includes this field or the value of the specified information unit is specified (for example, when the specified bit is 1, it indicates a request, and when the bit is 0, it indicates no request), it indicates requesting TPR Tx timing error group information.

[0126] Meanwhile, if the frequency error is expressed as Fe, then the time drift Delta T within time T = ±Fe×T. In addition, if the frequency drift is identified as F′, then the time drift Delta T within time T = ±0.5×F′×T 2 Therefore, according to the formula mapping relationship, the timing error group can also be mapped to the frequency error group indication.

[0127] 4) Sending a request indication of the timing deviation between the TRP of the sensing signal and the terminal;

[0128] Optionally, when this field is included in the first message or a value of a specified information unit is specified (for example, a request is indicated when a specified bit is 1, and no request is indicated when the bit is 0), a request for an indication of the timing offset between the TRP and the terminal is indicated. The timing offset between the TRP and the terminal includes at least one of the following: a timing offset between the TRP of a serving cell (primary serving cell) of the terminal and the terminal, and a timing offset between TRPs corresponding to one or more reference signal resources and the terminal.

[0129] 5) Send a request indication of the clock frequency deviation between the TRP of the sensing signal and the terminal;

[0130] The clock frequency deviation between the TRP and the terminal is the difference in clock frequency between the TRP and the terminal during a specific time period. This can be determined by comparing the clock signals between the two. The smaller the clock frequency deviation, the better the clock synchronization between the TRP and the terminal.

[0131] Optionally, when this field is included in the first message or by specifying the value of the information unit (for example, when the specified bit is 1, it indicates a request, and when the bit is 0, it indicates no request), it indicates requesting the clock frequency deviation between the serving cell (or main serving cell) TRP and the terminal.

[0132] 6) A request indication of the TRP transmit (Tx) clock accuracy that sends the sensing signal;

[0133] TRP Tx clock accuracy indicates the accuracy of the clock used by the TRP to transmit data, typically expressed in parts per million (ppm). A higher clock accuracy indicates a more accurate and stable clock used by the TRP to transmit data.

[0134] Optionally, when this field is included in the first message or by specifying the value of the information unit (for example, when the specified bit is 1, it indicates a request, and when the bit is 0, it indicates no request), it indicates requesting the TRP Tx clock accuracy information of the service cell (or main service cell).

[0135] 7) The TRP that sends the sensing signal sends a request indication for clock deviation group information;

[0136] The TRP transmit clock deviation group is associated with one or more sensing signal resources whose clock frequency deviations are within a certain range, for example, they come from the same clock source. The terminal can use the TRP transmit clock deviation group indication to estimate the frequency deviation, achieving more accurate Doppler measurements.

[0137] Optionally, when this field is included in the first message or by specifying the value of the information unit (for example, when the specified bit is 1, it indicates a request, and when the bit is 0, it indicates no request), it indicates requesting the Tx clock deviation group information of the serving cell (or main serving cell) TRP and / or neighboring TRPs.

[0138] 8) Request indication for LOS-NLOS assistance information.

[0139] Optionally, the LOS-NLOS assistance information may also be referred to as LOS-NLOS probability.

[0140] Optionally, when the first message includes this field or the value of the specified information unit is specified (for example, when the specified bit is 1, it indicates request, and when the bit is 0, it indicates no request), it indicates requesting LOS-NLOS assistance information.

[0141] Optionally, the LOS-NLOS assistance information indication may be associated with a certain reference signal identifier.

[0142] The type of the LOS-NLOS auxiliary information may be a soft information type (soft value) and / or a hard information type (hard value). One type is represented by the possibility of the LOS propagation path, which may also be referred to as a soft information type. For example, a value of 0 represents NLOS, and other numerical values ​​between 0 and 1 (such as 0.1, etc.) represent the possibility of passing the LOS propagation path. Another type of the LOS-NLOS auxiliary information is represented by a judgment value of LOS or NLOS, which may also be referred to as a hard information type. For example, 0 (False) represents NLOS, and 1 (True) represents LOS. The granularity of the LOS-NLOS auxiliary information may be TPR granularity and / or resource granularity. One type of granularity of the LOS-NLOS auxiliary information is the expected possibility of the LOS transmission path of the perception signal from one or a group of TPRs of the network side device to the terminal or perception target, which may also be referred to as TRP specific granularity. Another granularity of the LOS-NLOS auxiliary information is to indicate the expected possibility of the LOS transmission path of the sensing signal corresponding to one or a group of sensing signal resources from the network side device to the terminal or sensing target, which can also be called resource specific granularity.

[0143] In some embodiments, optionally, the perception assistance data provided by the network-side device includes a perception signal resource, and the LOS-NLOS assistance information includes at least one of the following:

[0144] A first value, where the first value is a value corresponding to an expected probability of an LOS transmission path of the sensing signal corresponding to the sensing signal resource from the TRP to the terminal;

[0145] a second value, where the second value is a value corresponding to an expected probability of an LOS transmission path of the perception signal corresponding to the perception signal resource from the TRP to the perception target;

[0146] or,

[0147] The perception assistance data provided by the network side device includes multiple perception signal resources, and the LOS-NLOS assistance information includes at least one of the following:

[0148] a third value, where the third value represents a total expected probability of an LOS transmission path of the sensing signals corresponding to all the sensing signal resources from the TRP to the terminal;

[0149] a fourth numerical list, where the fourth numerical value represents an expected probability of an LOS transmission path of the perception signal corresponding to each of the perception signal resources from the TRP to the terminal;

[0150] a fifth value and an indication of a sensing signal resource corresponding to the fifth value, wherein the fifth value represents a maximum value among expected possibilities of LOS transmission paths of the sensing signals corresponding to all the sensing signal resources from the TRP to the terminal;

[0151] a sixth value, where the sixth value represents a total expected probability of an LOS transmission path of the sensing signals corresponding to all the sensing signal resources from the TRP to the sensing target (such as the aforementioned sensing target reference position);

[0152] a seventh numerical list, where the seventh numerical value represents an expected probability of an LOS transmission path of the sensing signal corresponding to each of the sensing signal resources from the TRP to the sensing target;

[0153] An eighth value and a perception signal resource indication corresponding to the eighth value, wherein the eighth value represents a maximum value among expected possibilities of LOS transmission paths of the perception signals corresponding to all the perception signal resources from the TRP to the perception target.

[0154] a seventh value list, where the seventh value represents an expected probability of an LOS transmission path of the sensing signal corresponding to each sensing signal resource from the TRP to the sensing target (such as the aforementioned sensing target reference position);

[0155] An eighth value and a perception signal resource indication corresponding to the eighth value, wherein the eighth value represents a maximum value among the expected possibilities of LOS transmission paths of the perception signals corresponding to all perception signal resources from the TRP to the perception target (such as the aforementioned perception target reference position).

[0156] The above-mentioned values ​​can also be combined as needed. For example, the first value and the third value list together form a definition of LOS-NLOS auxiliary information, and the second value and the sixth value together form a definition of LOS-NLOS auxiliary information, etc., which will not be elaborated one by one.

[0157] In an embodiment of the present application, the request indication for LOS-NLOS assistance information may include at least one of the following: an indication of whether to request LOS-NLOS assistance information, and an indication of which type of LOS-NLOS assistance information is requested. If the LOS-NLOS probability includes the above two types of information, it can also be indicated by multiple bits. For example, by three bits, one bit is used to indicate whether to request LOS-NLOS assistance information, and two bits are used to indicate which type of LOS-NLOS assistance information is requested. For example, when the three bits are 100, it indicates a request for the expected probability of the LOS transmission path from the TRP to the terminal, when the three bits are 101, it indicates a request for the expected probability of the LOS transmission path from the TRP to the terminal across all reference signal resources, when the three bits are 110, it indicates a request for the expected probability of the LOS transmission path from the TRP to the perception target, and when the three bits are 111, it indicates a request for the expected probability of the LOS transmission path from the TRP to the perception target across all reference signal resources.

[0158] In some embodiments, optionally, if the terminal requests sensor assistance data, the first message further includes at least one of the following:

[0159] 1) Request indication of WLAN information;

[0160] Optionally, when this field is included in the first message or by specifying the value of the information unit (for example, a request when the specified bit is 1 and no request when the bit is 0), it indicates a request for WLAN information (such as CSI information with timestamp).

[0161] 2) Bluetooth information request indication;

[0162] Optionally, when the first message includes this field or a value of a specified information unit (for example, a request when the specified bit is 1 and no request when the bit is 0) is used, it indicates a request for Bluetooth information.

[0163] 3) Request for camera information.

[0164] Optionally, when this field is included in the first message or by specifying the value of the information unit (for example, a request when the specified bit is 1 and no request when the bit is 0), it indicates a request for camera information (for example, a video or picture with a timestamp, etc.).

[0165] In some embodiments, optionally, after the terminal sends the first message to the network side device, the method further includes:

[0166] The terminal receives a second message sent by the network side device, where the second message is used to provide the perception assistance data, or the terminal receives a third message sent by the network side device, where the third message is used to reject the request for the perception assistance data.

[0167] In some embodiments, optionally, the third message may further include a rejection reason, such as the network-side device does not have the requested perception assistance data.

[0168] In some embodiments, optionally, if the second message is used to provide perception assistance data, the second message includes at least one of the following:

[0169] 1) Segment information of the second message;

[0170] When the second message is large, the network-side device may divide the second message into multiple segments and transmit the segments in segments. The segmentation information of the second message may include at least one of the following: indication information indicating whether the second message is one of the multiple segments, indication information indicating the sequence number of the current segment, and indication information indicating the size of the current segment.

[0171] 2) indication of periodic sensing assistance data;

[0172] This field is used to indicate that the second message is a message for periodically transmitting perception assistance data.

[0173] 3) Perceive the effective area of ​​auxiliary data;

[0174] This field is used to indicate the valid area of ​​the perception assistance data.

[0175] 4) Validity time of perception assistance data;

[0176] This field is used to indicate the valid time of the perception assistance data.

[0177] 5) Perception auxiliary data.

[0178] In an embodiment of the present application, optionally, the perception assistance data may be represented in the form of a cell assistance data list, and the cell assistance data list is used to provide perception assistance data of each cell.

[0179] In some embodiments, optionally, the perception assistance data includes reference signal assistance data, and the reference signal assistance data includes at least one of the following:

[0180] 1) Frequency layer information of the reference signal;

[0181] 2) A list of reference signal information for each TRP of each of the frequency layers.

[0182] In some embodiments, optionally, the frequency layer information includes at least one of the following:

[0183] 1) Waveform of the reference signal;

[0184] The reference signal beam may, for example, include at least one of Orthogonal Frequency Division Multiplexing (OFDM), Single-carrier Frequency-Division Multiple Access (SC-FDMA), Orthogonal Time Frequency Space (OTFS), Frequency Modulated Continuous Wave (FMCW), Linear Frequency Modulation (LFM), a pulse signal, and the like;

[0185] 2) Subcarrier spacing of reference signals;

[0186] For example, the subcarrier spacing of the reference signal is 30 kHz.

[0187] 3) Guard interval of reference signal;

[0188] The guard interval of the reference signal refers to the time interval from the moment the reference signal ends to the moment the latest echo signal of the reference signal is received;

[0189] The guard interval of the reference signal is proportional to the maximum perception distance. For example, it can be calculated as 2dmax / c, where dmax is the maximum perception distance (a perception requirement). For example, for a self-transmitted and self-received perception signal, dmax represents the maximum distance from the perception signal receiving and transmitting point to the signal transmitting point. In some cases, the OFDM signal cyclic prefix (CP) can serve as the minimum guard interval. c is the speed of light.

[0190] 4) Bandwidth of the reference signal;

[0191] The bandwidth of the reference signal is inversely proportional to the range resolution and can be obtained by c / 2 / delta_d, where delta_d is the range resolution (which is a perception requirement);

[0192] 5) The burst duration of the reference signal;

[0193] The burst duration of the reference signal is inversely proportional to the rate resolution (a sensing requirement). This parameter is the time span of the sensing signal and is mainly used to calculate the Doppler frequency offset. This parameter can be calculated as c / 2 / delta_v / fc, where delta_v is the rate resolution and fc is the signal carrier frequency or the center frequency of the signal.

[0194] 6) Time domain interval of reference signal;

[0195] This parameter can be calculated by c / 2 / fc / v_range; where v_range is the maximum rate minus the minimum speed (which belongs to the perception requirement); this parameter is the time interval between two adjacent perception signals;

[0196] 7) The frequency starting position of the reference signal, such as the starting physical resource block (PRB);

[0197] 8) point-A of the reference signal;

[0198] This field indicates the absolute frequency of the reference resource block for the reference signal. The lowest subcarrier of the reference resource block is also called the reference signal's point-A. Each frequency layer provides a single point-A for reference signal resource allocation. All reference signal resources belonging to the same reference signal resource set have the same point-A.

[0199] 9) Comb size of the reference signal;

[0200] This field specifies the resource element (RE) spacing of each symbol in the reference resource. All reference signal resource sets belonging to the same frequency layer have the same group spacing value.

[0201] 10) cyclic prefix of the reference signal;

[0202] This field specifies the cyclic prefix length of the reference signal resource, such as a normal cyclic prefix (CP) or an extended CP.

[0203] In some embodiments, optionally, the reference signal information of each TRP includes at least one of the following:

[0204] 1) Reference signal identifier: This field is used to uniquely identify the reference signal resource associated with the TRP;

[0205] 2) the cell identity of the TRP;

[0206] 3) Reference TRP cell ID;

[0207] 4) the time offset between system frame number 0 (SFN0) timeslot 0 of the TRP and SFN0 timeslot 0 of the reference TRP;

[0208] 5) Reference Signal Time Difference (RSTD) measured between the TRP and a reference TRP;

[0209] 6) The expected angle of arrival (AoA) or angle of departure (AoD) of the terminal’s location;

[0210] 7) QCL information of the reference signal;

[0211] For example, the reference signal includes multiple resources, each resource is associated with an SSB QCL, and the QCL includes Type A, B, C, or D.

[0212] 8) Beam information of the reference signal.

[0213] 9) Transmit power of the reference signal; for example, a value of 2dBm is taken from -20dBm to 23dBm;

[0214] 10) Transmitting port information of the reference signal; the transmitting port information includes at least one of the number of transmitting ports and the port number;

[0215] 11) Reference signal format; for example, including at least one of CSI-RS, SRS, DMRS, PRS, etc., or other predefined signals and related sequence format information;

[0216] 12) Time resources of reference signals;

[0217] For example, the time resource of the reference signal may include the time slot index or the symbol index of the time slot where the reference signal is located. There are two types of time resources: one is a one-time time resource, for example, one reference signal is sent per symbol; the other is a non-one-time time resource, for example, multiple groups of periodic time resources or discontinuous time resources (which may include a start time and an end time). Each group of periodic time resources sends a reference signal in the same direction, and different groups of periodic time resources have different beam directions.

[0218] 13) Frequency resources of reference signals.

[0219] The frequency resource of the reference signal includes at least one of the center frequency point, bandwidth, resource block (RB) and subcarrier of the reference signal.

[0220] In some embodiments, optionally, the beam information of the reference signal includes at least one of the following:

[0221] Reference signal identifier containing beam information;

[0222] The bearing angle of the TRP;

[0223] The downtilt angle of the TRP;

[0224] the slant angle of the TRP;

[0225] The beam information of each reference signal resource on the TRP may include, for example, at least one of the azimuth angle of the transmission direction of the reference signal transmission resource (range 0 to 360 degrees) and the elevation angle of the transmission direction of the reference signal transmission resource (range 0 to 180 degrees).

[0226] In some embodiments, optionally, the perception assistance data includes perception computing assistance data, and the perception computing assistance data includes at least one of the following:

[0227] 1) The coordinates of the antenna reference point of the TRP that sends the sensing signal. If the terminal is a mobile phone, the antenna reference point and the terminal location are almost identical, so the two can be equivalent. If the terminal is a car terminal, the antenna reference point is located on the roof of the car, and may differ from the terminal location by meters. Therefore, if more accurate location information is required, the location information of the terminal's antenna reference point must be indicated.

[0228] 2) Beam information of the reference signal;

[0229] 3) Reference TRP cell ID;

[0230] 4) Time synchronization information between the reference TRP for sending the sensing signal and the TRP;

[0231] 5) The TRP that sends the sensing signal sends timing error group (TEG) information; one method is to represent the TEG information through a TEG identifier.

[0232] 6) Timing deviation between the TRP sending the sensing signal and the terminal;

[0233] 7) The clock frequency deviation between the TRP sending the sensing signal and the terminal;

[0234] 8) TRP sending clock accuracy for sending sensing signals;

[0235] 9) The TRP that sends the perception signal sends clock deviation group information;

[0236] 10) LOS-NLOS auxiliary information.

[0237] In some embodiments, optionally,

[0238] The perception assistance data provided by the network-side device includes a perception signal resource, and the LOS-NLOS assistance information includes at least one of the following:

[0239] A first value, where the first value is a value corresponding to an expected probability of an LOS transmission path of the sensing signal corresponding to the sensing signal resource from the TRP to the terminal;

[0240] a second value, where the second value is a value corresponding to an expected probability of an LOS transmission path of the perception signal corresponding to the perception signal resource from the TRP to the perception target;

[0241] or,

[0242] The perception assistance data provided by the network side device includes multiple perception signal resources, and the LOS-NLOS assistance information includes at least one of the following:

[0243] a third value, where the third value represents a total expected probability of an LOS transmission path of the sensing signals corresponding to all the sensing signal resources from the TRP to the terminal;

[0244] a fourth numerical list, where the fourth numerical value represents an expected probability of an LOS transmission path of the perception signal corresponding to each of the perception signal resources from the TRP to the terminal;

[0245] a fifth value and an indication of a sensing signal resource corresponding to the fifth value, wherein the fifth value represents a maximum value among expected possibilities of LOS transmission paths of the sensing signals corresponding to all the sensing signal resources from the TRP to the terminal;

[0246] a sixth value, where the sixth value represents a total expected probability of an LOS transmission path of the sensing signals corresponding to all the sensing signal resources from the TRP to the sensing target (such as the aforementioned sensing target reference position);

[0247] a seventh numerical list, where the seventh numerical value represents an expected probability of an LOS transmission path of the sensing signal corresponding to each of the sensing signal resources from the TRP to the sensing target;

[0248] An eighth value and a perception signal resource indication corresponding to the eighth value, wherein the eighth value represents a maximum value among expected possibilities of LOS transmission paths of the perception signals corresponding to all the perception signal resources from the TRP to the perception target.

[0249] In some embodiments, optionally, the perception assistance data includes sensor assistance data, and the sensor assistance data includes at least one of the following:

[0250] WLAN information, such as CSI information with timestamp;

[0251] Bluetooth information, such as measurement data or sensing results with time stamps;

[0252] Camera information, such as videos or pictures with timestamps.

[0253] The transmission method for sensing assistance data in the embodiments of the present application is applicable to a variety of sensing methods. For example, using the six sensing methods mentioned above, reference signal assistance data can be used in the sensing method where the base station transmits and the terminal receives, or in combination with other methods. Sensing calculation assistance data can also be used in the sensing method where the base station transmits and the terminal receives, or in combination with other methods. Sensor assistance data is applicable to any of the six methods.

[0254] Referring to FIG6 , an embodiment of the present application further provides a method for transmitting perception assistance data, including:

[0255] Step S21: The network-side device receives a first message sent by the terminal, where the first message is used to request perception assistance data, where the perception assistance data is used to assist the terminal in perception and includes at least one of reference signal assistance data, perception calculation assistance data, and sensor assistance data.

[0256] Step S22: The network-side device sends a second message to the terminal based on the first message, where the second message is used to provide the perception assistance data, or sends a third message to the terminal, where the third message is used to reject the request for the perception assistance data.

[0257] In the embodiment of the present application, the network side device may be a wireless access network node or a core network network function node.

[0258] In an embodiment of the present application, optionally, the network side device sends a second message to the terminal according to the first message, including: the network side device determines whether to provide the requested perception assistance data according to the first message, the currently configured reference signal and available resources.

[0259] In some embodiments, optionally, the third message may further include a rejection reason, such as the network-side device does not have the requested perception assistance data.

[0260] In some embodiments, optionally, the first message includes at least one of the following:

[0261] providing a cell identifier for the sensing assistance data;

[0262] Perception auxiliary data types;

[0263] A request indication of a valid area for sensing assistance data;

[0264] A request indication of the validity period of the sensing assistance data;

[0265] Perceive the target reference position;

[0266] Segment information of the first message;

[0267] Indication of request for periodic sensing assistance data.

[0268] In some embodiments, optionally, the perception assistance data type includes at least one of reference signal assistance data or non-reference signal assistance data;

[0269] or,

[0270] The perception assistance data type includes at least one of reference signal assistance data, perception calculation assistance data, and sensor assistance data.

[0271] In some embodiments, optionally, the first message further includes at least one of the following:

[0272] the minimum bandwidth of the required reference signal;

[0273] The maximum repetition period of the required reference signal;

[0274] The minimum time domain length of the required reference signal;

[0275] The minimum transmit power of the required reference signal;

[0276] Minimum waveform quality of the required reference signal;

[0277] Minimum number of ports required for reference signals;

[0278] The maximum beamwidth of the required reference signal;

[0279] The minimum number of different sites TRP that transmit the required reference signal.

[0280] In some embodiments, optionally, the first message further includes at least one of the following:

[0281] A reference signal identifier, the reference signal identifier comprising: at least one of a reference signal type identifier and a configuration identifier;

[0282] a request indication of a departure angle of a reference signal;

[0283] a request indication of the angle of arrival of a reference signal;

[0284] a request indication of a reference signal beam;

[0285] A request indication for a quasi-co-located QCL of a reference signal.

[0286] In some embodiments, optionally, the first message further includes at least one of the following:

[0287] Send a request for the location information of the TRP of the perception signal;

[0288] Send a request indication for time synchronization information between the reference TRP of the perception signal and the neighboring TPR;

[0289] The TRP that sends the perception signal sends a request indication for timing error group information;

[0290] Send a request indication of the timing deviation between the TRP of the perception signal and the terminal;

[0291] Send a request indication of the clock frequency deviation between the TRP of the sensing signal and the terminal;

[0292] The TRP that sends the perception signal sends a request indication of clock accuracy;

[0293] The TRP that sends the sensing signal sends a request indication for clock deviation group information;

[0294] Request indication for LOS-NLOS assistance information;

[0295] The perception signal includes at least one of a reference signal and a downlink data signal.

[0296] In some embodiments, optionally, the first message further includes at least one of the following:

[0297] WLAN information request indication;

[0298] Bluetooth information request indication;

[0299] Indicates a request for camera information.

[0300] In some embodiments, optionally, the second message includes at least one of the following:

[0301] Segment information of the second message;

[0302] indication of periodic sensing assistance data;

[0303] Perceive the effective area of ​​auxiliary data;

[0304] The validity period of the perception assistance data.

[0305] In some embodiments, optionally, the perception assistance data includes reference signal assistance data, and the reference signal assistance data includes at least one of the following:

[0306] Frequency layer information of the reference signal;

[0307] A list of reference signal information for each TRP of each of the frequency layers.

[0308] In some embodiments, optionally, the frequency layer information includes at least one of the following:

[0309] Waveform of the reference signal;

[0310] subcarrier spacing of the reference signal;

[0311] Guard interval of reference signal;

[0312] The bandwidth of the reference signal;

[0313] the burst duration of the reference signal;

[0314] The time domain interval of the reference signal;

[0315] The frequency starting position of the reference signal;

[0316] point-A of the reference signal;

[0317] The inter-group spacing of the reference signal;

[0318] Cyclic prefix of the reference signal.

[0319] In some embodiments, optionally, the reference signal information of each TRP includes at least one of the following: a reference signal identifier;

[0320] The cell identifier of the TRP;

[0321] Refer to the cell ID where the TRP is located;

[0322] The time offset between SFN0 timeslot 0 of the TRP and SFN0 timeslot 0 of the reference TRP;

[0323] a reference signal time difference measured between the TRP and a reference TRP;

[0324] The expected angle of arrival AoA or angle of departure AoD of the terminal position;

[0325] QCL information of the reference signal;

[0326] Beam information of the reference signal.

[0327] transmit power of the reference signal;

[0328] Transmitting port information of the reference signal;

[0329] Signal format of the reference signal;

[0330] Time resources of reference signals;

[0331] Frequency resources of reference signals.

[0332] In some embodiments, optionally, the beam information of the reference signal includes at least one of the following:

[0333] Reference signal identifier containing beam information;

[0334] the azimuth of the TRP;

[0335] the downtilt angle of the TRP;

[0336] the tilt angle of the TRP;

[0337] Beam information of each reference signal resource on the TRP.

[0338] In some embodiments, optionally, the perception assistance data includes perception computing assistance data, and the perception computing assistance data includes at least one of the following:

[0339] The location coordinates of the antenna reference point of the TRP that sends the sensing signal;

[0340] Beam information of the reference signal;

[0341] Refer to the cell ID where the TRP is located;

[0342] Time synchronization information between a reference TRP for sending perception signals and the TRP;

[0343] The TRP that sends the perception signal sends timing error group information;

[0344] Timing deviation between the TRP that sends the sensing signal and the terminal;

[0345] The clock frequency deviation between the TRP that sends the sensing signal and the terminal;

[0346] TRP sending clock accuracy for sending perception signals;

[0347] The TRP that sends the sensing signal sends the clock deviation group information;

[0348] LOS-NLOS assistance information.

[0349] In some embodiments, optionally,

[0350] The perception assistance data provided by the network-side device includes a perception signal resource, and the LOS-NLOS assistance information includes at least one of the following:

[0351] A first value, where the first value is a value corresponding to an expected probability of an LOS transmission path of the sensing signal corresponding to the sensing signal resource from the TRP to the terminal;

[0352] a second value, where the second value is a value corresponding to an expected probability of an LOS transmission path of the perception signal corresponding to the perception signal resource from the TRP to the perception target;

[0353] or

[0354] The perception assistance data provided by the network side device includes multiple perception signal resources, and the LOS-NLOS assistance information includes at least one of the following:

[0355] a third value, where the third value represents a total expected probability of an LOS transmission path of the sensing signals corresponding to all the sensing signal resources from the TRP to the terminal;

[0356] a fourth numerical list, where the fourth numerical value represents an expected probability of an LOS transmission path of the perception signal corresponding to each of the perception signal resources from the TRP to the terminal;

[0357] a fifth value and an indication of a sensing signal resource corresponding to the fifth value, wherein the fifth value represents a maximum value among expected possibilities of LOS transmission paths of the sensing signals corresponding to all the sensing signal resources from the TRP to the terminal;

[0358] a sixth value, where the sixth value represents a total expected probability of an LOS transmission path of the sensing signals corresponding to all the sensing signal resources from the TRP to the sensing target (such as the aforementioned sensing target reference position);

[0359] a seventh numerical list, where the seventh numerical value represents an expected probability of an LOS transmission path of the sensing signal corresponding to each of the sensing signal resources from the TRP to the sensing target;

[0360] An eighth value and a perception signal resource indication corresponding to the eighth value, wherein the eighth value represents a maximum value among expected possibilities of LOS transmission paths of the perception signals corresponding to all the perception signal resources from the TRP to the perception target.

[0361] In some embodiments, optionally, the perception assistance data is sensor assistance data, and the sensor assistance data includes at least one of the following:

[0362] WLAN information;

[0363] Bluetooth information;

[0364] Camera information.

[0365] The above-mentioned method for transmitting perception-assisted data can be applied to the following two aspects: on the one hand, it is used to support the terminal to directly use air interface perception measurement without reporting to the network side device; on the other hand, when the terminal needs to calculate the perception results, it obtains the perception-assisted data of the network side device, which can be used to complete the perception result calculation or improve the accuracy of the perception results.

[0366] The following describes the request and transmission method of the perception assistance data in the embodiment of the present application with examples in combination with specific application scenarios. Example 1: UE requests perception assistance data based on reference signal requirements

[0367] This embodiment takes the example of UE requesting the network-side device to provide perception assistance data based on perception needs, and the UE receives the perception signal based on the perception assistance data to obtain the required perception result. One method is that when the first message includes the cell identifier corresponding to the perception target or the perception area, the network-side device provides the corresponding reference signal assistance data, perception calculation assistance data or sensor assistance data according to the cell identifier in the first message. Another method is that when the first message does not include the cell identifier corresponding to the perception target or the perception area, the network-side device determines which cell or cells to provide reference signal assistance data, perception calculation assistance data or sensor assistance data based on the reference perception target position or the minimum number of TRPs at different sites or the UE capability.

[0368] The method for requesting and transmitting perception assistance data in an embodiment of the present application includes the following steps:

[0369] Step 1: Optionally, the UE sends the sensing target location or sensing area information to the network device according to the sensing requirement to request the cell identifier corresponding to the sensing target or sensing area. The network device sends a response message to the UE providing the cell identifier.

[0370] Step 2: The UE sends a first message to the network side device, where the first message is used to request the perception assistance data. The first message includes at least one of the following:

[0371] 1) Cell ID that provides sensing assistance data;

[0372] In some embodiments, optionally, the cell identifier is determined by the terminal according to at least one of an area where the sensing target is located, an area where the sensing area is located, and a capability of the terminal.

[0373] The cell identifier that provides the sensing assistance data may also be referred to as the cell identifier of the area corresponding to the sensing target or sensing area.

[0374] For example, when the sensing target is a terminal, the cell identifier providing sensing assistance data can be the serving cell ID. If the terminal has both a primary cell and a secondary cell, the corresponding cell identifier is the primary cell identifier. When the sensing area is the sensing area associated with the terminal (for example, obstacle sensing within 20 meters of the terminal), the terminal determines the cell identifier corresponding to the sensing area based on the sensing range and measurement as the cell identifier providing sensing assistance data. The number of cell identifiers may be 1 or greater depending on whether the terminal is located at the cell edge. For example, if the terminal is in the overlapping area of ​​cell A and cell B, based on the sensing range mapping relationship, this field will be cell A and cell B.

[0375] 2) Perception-assisted data types;

[0376] In some embodiments, optionally, the perception assistance data type includes at least one of reference signal assistance data, perception calculation assistance data, and sensor assistance data;

[0377] or,

[0378] The type of the perception assistance data includes at least one of reference signal assistance data and non-reference signal assistance data. In this embodiment, the assistance data types are reference signal assistance data and perception calculation assistance data.

[0379] 3) a request indication for sensing the area validity of the assistance data;

[0380] Optionally, when the first message includes this field or the value of the specified information unit is specified (for example, a request is indicated when the specified bit is 1, and no request is indicated when the bit is 0), it indicates a request for a valid area of ​​the perception assistance data.

[0381] 4) a request indication for sensing the validity period of the assistance data;

[0382] When this field is included in the first message or the value of the specified information unit is specified (for example, a request is indicated when the specified bit is 1, and no request is indicated when the bit is 0), it indicates a request for the valid time information of the perception assistance data.

[0383] 5) Perceive the target reference position;

[0384] In an embodiment of the present application, optionally, the terminal may determine one or more perception target reference positions based on perception requirements, etc., and the perception target reference position information may be represented by latitude, longitude, altitude, etc. For example, the UE selects several typical positions (such as the edge position of the perception area, the center position of the perception area, etc.) within the perception area as reference perception target positions. If the terminal requests the network-side device to provide the expected possibility of LOS path transmission of the perception signal sending TRP to the perception target, this field is used by the network-side device to determine the expected possibility of LOS path transmission. The perception signal includes at least one of a reference signal and a downlink data signal.

[0385] 6) Segment information of the first message;

[0386] When the first message is large, the first message may be divided into multiple segments and transmitted in segments. The segmentation information of the first message may include at least one of the following: indication information indicating whether the first message is one of the multiple segments, indication information indicating the sequence number of the current segment, and indication information indicating the size of the current segment.

[0387] 7) Periodic sensing assistance data request indication.

[0388] This field is used to indicate a request for periodic transmission of perception assistance data.

[0389] 8) The minimum bandwidth of the required reference signal refers to the minimum total frequency domain bandwidth occupied by the reference signal;

[0390] 9) The maximum repetition period of the required reference signal refers to the maximum frequency at which the reference signal can be repeated;

[0391] 10) The minimum time domain length of the required reference signal refers to the minimum time domain time occupied by the reference signal;

[0392] 11) Minimum transmit power of the required reference signal refers to the minimum transmit power of the reference signal;

[0393] 12) The minimum waveform quality of the required reference signal refers to the side lobes of the reference signal waveform, such as the Doppler side lobe level not higher than X, the range side lobe not higher than Y, and the peak-to-average ratio not higher than Z;

[0394] 13) The minimum number of ports required for reference signals refers to the minimum number of ports for sending reference signals;

[0395] 14) Maximum beamwidth of the required reference signal, which is the angle between two specified power points of the beam. For example, in radar meteorology, beamwidth is defined as the angle between two half-power points of the beam. The maximum beamwidth includes at least one of the vertical beamwidth and the horizontal beamwidth;

[0396] 15) Minimum number of different TRPs for transmitting the required reference signal. If this parameter is not provided, the network device, when providing reference signal assistance data, shall provide at least one TRP for the single frequency network (SFN) that the terminal can obtain, such as the serving TRP; or the network device shall provide at least one TPR corresponding to the aforementioned "cell identifier of the area corresponding to the sensing target or sensing area".

[0397] 16) Sending a request indication for the location information of the TRP sensing signal;

[0398] Optionally, when this field is included in the first message or by specifying the value of the information unit (for example, when the specified bit is 1, it indicates a request, and when the bit is 0, it indicates no request), it indicates the location information of the TRP requesting to send the perception signal.

[0399] The perception signal includes at least one of a reference signal and a downlink data signal.

[0400] 17) Sending a request indication for time synchronization information between the reference TRP of the sensing signal and the neighboring TPR;

[0401] Optionally, when this field is included in the first message or by specifying the value of the information unit (for example, a request when the specified bit is 1, and no request when the specified bit is 0), it indicates a request for time synchronization information between the reference TRP and neighboring TRPs. In one embodiment, the reference TRP is the TRP of the terminal's serving cell (or primary serving cell).

[0402] 18) Sending a TRP sensing signal to send (Tx) timing error group information request indication;

[0403] One definition of a TRP Tx timing error group is that the Tx timing errors associated with TRP transmissions on one or more reference signal resources are within a certain range. For example, TRPs with a common clock source typically have smaller timing errors.

[0404] Optionally, when the first message includes this field or the value of the specified information unit is specified (for example, when the specified bit is 1, it indicates a request, and when the bit is 0, it indicates no request), it indicates requesting TPR Tx timing error group information.

[0405] Meanwhile, if the frequency error is expressed as Fe, then the time drift Delta T within time T = ±Fe×T. In addition, if the frequency drift is identified as F′, then the time drift Delta T within time T = ±0.5×F′×T 2 Therefore, according to the formula mapping relationship, the timing error group can also be mapped to the frequency error group indication.

[0406] 19) Sending a request indication of the timing deviation between the TRP of the sensing signal and the terminal;

[0407] Optionally, when this field is included in the first message or a value of a specified information unit is specified (for example, a request is indicated when a specified bit is 1, and no request is indicated when the bit is 0), a request for an indication of the timing offset between the TRP and the terminal is indicated. The timing offset between the TRP and the terminal includes at least one of the following: a timing offset between the TRP of a serving cell (primary serving cell) of the terminal and the terminal, and a timing offset between TRPs corresponding to one or more reference signal resources and the terminal.

[0408] 20) Sending a request indication of the clock frequency deviation between the TRP of the sensing signal and the terminal;

[0409] The clock frequency deviation between the TRP and the terminal is the difference in clock frequency between the TRP and the terminal during a specific time period. This can be determined by comparing the clock signals between the two. The smaller the clock frequency deviation, the better the clock synchronization between the TRP and the terminal.

[0410] Optionally, when this field is included in the first message or by specifying the value of the information unit (for example, when the specified bit is 1, it indicates a request, and when the bit is 0, it indicates no request), it indicates requesting the clock frequency deviation between the serving cell (or main serving cell) TRP and the terminal.

[0411] 21) Sending a TRP sensing signal to request the transmit (Tx) clock accuracy;

[0412] TRP Tx clock accuracy indicates the accuracy of the clock used by the TRP to transmit data, typically expressed in parts per million (ppm). A higher clock accuracy indicates a more accurate and stable clock used by the TRP to transmit data.

[0413] Optionally, when this field is included in the first message or by specifying the value of the information unit (for example, when the specified bit is 1, it indicates a request, and when the bit is 0, it indicates no request), it indicates requesting the TRP Tx clock accuracy information of the service cell (or main service cell).

[0414] 22) The TRP that sends the sensing signal sends a request indication for clock deviation group information;

[0415] The TRP transmit clock deviation group is associated with one or more sensing signal resources whose clock frequency deviations are within a certain range, for example, they come from the same clock source. The terminal can use the TRP transmit clock deviation group indication to estimate the frequency deviation, achieving more accurate Doppler measurements.

[0416] Optionally, when this field is included in the first message or by specifying the value of the information unit (for example, when the specified bit is 1, it indicates a request, and when the bit is 0, it indicates no request), it indicates requesting the Tx clock deviation group information of the serving cell (or main serving cell) TRP and / or neighboring TRPs.

[0417] 23) Request indication for LOS-NLOS assistance information.

[0418] For the description of LOS-NLOS assistance information, reference may be made to the description in the above embodiment.

[0419] Step 3: The network device receives the first message sent by the terminal and determines whether to provide the requested perception assistance data based on the first message, the currently configured reference signal, and the available resources. The network device sends a second message to the terminal, the second message being used to provide the perception assistance data, or sends a third message to the terminal, the third message being used to reject the request for the perception assistance data.

[0420] In some embodiments, optionally, the third message may further include a rejection reason, such as the network-side device does not have the requested perception assistance data.

[0421] In some embodiments, optionally, if the second message is used to provide perception assistance data, the second message includes at least one of the following:

[0422] 1) Segment information of the second message;

[0423] When the second message is large, the network-side device may divide the second message into multiple segments and transmit the segments in segments. The segmentation information of the second message may include at least one of the following: indication information indicating whether the second message is one of the multiple segments, indication information indicating the sequence number of the current segment, and indication information indicating the size of the current segment.

[0424] 2) indication of periodic sensing assistance data;

[0425] This field is used to indicate that the second message is a message for periodically transmitting perception assistance data.

[0426] 3) Perceive the effective area of ​​auxiliary data;

[0427] This field is used to indicate the valid area of ​​the perception assistance data.

[0428] 4) Validity time of perception assistance data;

[0429] This field is used to indicate the valid time of the perception assistance data.

[0430] 5) Perception auxiliary data.

[0431] The perception assistance data includes reference signal assistance data, and the reference signal assistance data includes at least one of the following:

[0432] 51) Frequency layer information of the reference signal;

[0433] 52) A list of reference signal information for each TRP of each of the frequency layers.

[0434] In some embodiments, optionally, the frequency layer information includes at least one of the following:

[0435] 511) waveform of the reference signal;

[0436] The reference signal beam may, for example, include at least one of Orthogonal Frequency Division Multiplexing (OFDM), Single-carrier Frequency-Division Multiple Access (SC-FDMA), Orthogonal Time Frequency Space (OTFS), Frequency Modulated Continuous Wave (FMCW), Linear Frequency Modulation (LFM), a pulse signal, and the like;

[0437] 512) subcarrier spacing of the reference signal;

[0438] For example, the subcarrier spacing of the reference signal is 30 kHz.

[0439] 513) guard interval of reference signal;

[0440] The guard interval of the reference signal refers to the time interval from the moment the reference signal ends to the moment the latest echo signal of the reference signal is received;

[0441] The guard interval of the reference signal is proportional to the maximum perception distance. For example, it can be calculated as 2dmax / c, where dmax is the maximum perception distance (a perception requirement). For example, for a self-transmitted and self-received perception signal, dmax represents the maximum distance from the perception signal receiving and transmitting point to the signal transmitting point. In some cases, the OFDM signal cyclic prefix (CP) can serve as the minimum guard interval. c is the speed of light.

[0442] 514) bandwidth of the reference signal;

[0443] The bandwidth of the reference signal is inversely proportional to the range resolution and can be obtained by c / 2 / delta_d, where delta_d is the range resolution (which is a perception requirement);

[0444] 515) burst duration of the reference signal;

[0445] The burst duration of the reference signal is inversely proportional to the rate resolution (a sensing requirement). This parameter is the time span of the sensing signal and is mainly used to calculate the Doppler frequency offset. This parameter can be calculated as c / 2 / delta_v / fc, where delta_v is the rate resolution and fc is the signal carrier frequency or the center frequency of the signal.

[0446] 516) time domain interval of the reference signal;

[0447] This parameter can be calculated by c / 2 / fc / v_range; where v_range is the maximum rate minus the minimum speed (which belongs to the perception requirement); this parameter is the time interval between two adjacent perception signals;

[0448] 517) The frequency starting position of the reference signal, such as the starting physical resource block (PRB);

[0449] 518) reference signal point-A;

[0450] This field indicates the absolute frequency of the reference resource block for the reference signal. The lowest subcarrier of the reference resource block is also called the reference signal's point-A. Each frequency layer provides a single point-A for reference signal resource allocation. All reference signal resources belonging to the same reference signal resource set have the same point-A.

[0451] 519) Comb size of reference signal;

[0452] This field specifies the resource element (RE) spacing of each symbol in the reference resource. All reference signal resource sets belonging to the same frequency layer have the same group spacing value.

[0453] 5110) cyclic prefix of the reference signal;

[0454] This field specifies the cyclic prefix length of the reference signal resource, such as a normal cyclic prefix (CP) or an extended CP.

[0455] In some embodiments, optionally, the reference signal information of each TRP includes at least one of the following:

[0456] 521) Reference Signal Identifier: This field is used to uniquely identify the reference signal resource associated with the TRP;

[0457] 522) The cell identity of the TRP;

[0458] 523) Reference the cell ID where the TRP is located;

[0459] 524) The time offset between the system frame number 0 (SFN0) timeslot 0 of the TRP and the SFN0 timeslot 0 of the reference TRP;

[0460] 525) a reference signal time difference (Reference Signal Time Difference) measured between the TRP and a reference TRP;

[0461] 526) The expected angle of arrival (AoA) or angle of departure (AoD) of the terminal position;

[0462] 527) QCL information of the reference signal;

[0463] For example, the reference signal includes multiple resources, each resource is associated with an SSB QCL, and the QCL includes Type A, B, C, or D.

[0464] 528) Beam information of the reference signal.

[0465] 529) Transmit power of the reference signal; for example, a value of 2dBm is taken from -20dBm to 23dBm;

[0466] 5210) transmitting port information of the reference signal; the transmitting port information includes at least one of the number of transmitting ports and the port number;

[0467] 5211) Reference signal format; for example, including at least one of CSI-RS, SRS, DMRS, PRS, etc., or other predefined signals and related sequence format information;

[0468] 5212) Time resources of reference signals;

[0469] For example, the time resource of the reference signal may include the time slot index or the symbol index of the time slot where the reference signal is located. There are two types of time resources: one is a one-time time resource, for example, one reference signal is sent per symbol; the other is a non-one-time time resource, for example, multiple groups of periodic time resources or discontinuous time resources (which may include a start time and an end time). Each group of periodic time resources sends a reference signal in the same direction, and different groups of periodic time resources have different beam directions.

[0470] 5213)Frequency resources of reference signals.

[0471] The frequency resource of the reference signal includes at least one of the center frequency point, bandwidth, resource block (RB) and subcarrier of the reference signal.

[0472] The perception assistance data includes perception computing assistance data, and the perception computing assistance data includes at least one of the following:

[0473] 531) The location coordinates of the antenna reference point of the TRP that sends the sensing signal; if the terminal is a mobile phone terminal, since the antenna reference point and the terminal position are almost the same, the two can be equivalent. If the terminal is a car terminal, etc., since the antenna reference point is located at a position such as the roof of the car, there may be a meter-level difference from the terminal position. Therefore, if more accurate location information is required, the location information of the terminal's antenna reference point needs to be indicated;

[0474] 5312) beam information of the reference signal;

[0475] 5313) Reference the cell identifier of the TRP;

[0476] 5314) sending time synchronization information between the reference TRP of the perception signal and the TRP;

[0477] 5315) The TRP that sends the perception signal sends timing error group (TEG) information; one method is to represent the TEG information through the TEG identifier.

[0478] 5316) Timing deviation between the TRP sending the perception signal and the terminal;

[0479] 5317) the clock frequency deviation between the TRP sending the sensing signal and the terminal;

[0480] 5318) TRP sending clock accuracy for sending perception signals;

[0481] 5319) The TRP that sends the sensing signal sends clock deviation group information;

[0482] 53110)LOS-NLOS assistance information.

[0483] Step 4: The UE receives the second message sent by the network-side device. If the sensing assistance data is obtained, the UE receives a reference signal according to the sensing assistance data and performs sensing measurement to obtain the required sensing result.

[0484] In the embodiment of the present application, the second message can be sent to the UE through RRC reconfiguration or to one or more UEs through SIB.

[0485] Example 2: UE requests perception assistance data based on reference signal configuration

[0486] In embodiment 1, the UE obtains any required configuration information and perception calculation assistance data for any reference signal that meets the requirements. In this embodiment, the UE provides at least reference signal information (e.g., PRS, on-demand PRS, CSI-RS, etc.) in a first message based on the reference signal configuration request. Optionally, the UE may also provide requirements for the reference signal. The UE receives the perception signal based on the perception assistance data and obtains the required perception result.

[0487] The method for requesting and transmitting perception assistance data in an embodiment of the present application includes the following steps:

[0488] Step 1: Optionally, the UE sends the sensing target location or sensing area information to the network device according to the sensing requirement to request the cell identifier corresponding to the sensing target or sensing area. The network device sends a response message to the UE providing the cell identifier.

[0489] Step 2: The UE sends a first message to the network side device, where the first message is used to request the perception assistance data. The first message includes at least one of the following:

[0490] 1) Cell ID that provides sensing assistance data;

[0491] In some embodiments, optionally, the cell identifier is determined by the terminal according to at least one of an area where the sensing target is located, an area where the sensing area is located, and a capability of the terminal.

[0492] The cell identifier that provides the sensing assistance data may also be referred to as the cell identifier of the area corresponding to the sensing target or sensing area.

[0493] For example, when the sensing target is a terminal, the cell identifier providing sensing assistance data can be the serving cell ID. If the terminal has both a primary cell and a secondary cell, the corresponding cell identifier is the primary cell identifier. When the sensing area is the sensing area associated with the terminal (for example, obstacle sensing within 20 meters of the terminal), the terminal determines the cell identifier corresponding to the sensing area based on the sensing range and measurement as the cell identifier providing sensing assistance data. The number of cell identifiers may be 1 or greater depending on whether the terminal is located at the cell edge. For example, if the terminal is in the overlapping area of ​​cell A and cell B, based on the sensing range mapping relationship, this field will be cell A and cell B.

[0494] 2) Perception-assisted data types;

[0495] In some embodiments, optionally, the perception assistance data type includes at least one of reference signal assistance data, perception calculation assistance data, and sensor assistance data;

[0496] or,

[0497] The type of the perception assistance data includes at least one of reference signal assistance data and non-reference signal assistance data. In this embodiment, the assistance data types are reference signal assistance data and perception calculation assistance data.

[0498] 3) a request indication for sensing the area validity of the assistance data;

[0499] Optionally, when the first message includes this field or the value of the specified information unit is specified (for example, a request is indicated when the specified bit is 1, and no request is indicated when the bit is 0), it indicates a request for a valid area of ​​the perception assistance data.

[0500] 4) a request indication for sensing the validity period of the assistance data;

[0501] When this field is included in the first message or the value of the specified information unit is specified (for example, a request is indicated when the specified bit is 1, and no request is indicated when the bit is 0), it indicates a request for the valid time information of the perception assistance data.

[0502] 5) Perceive the target reference position;

[0503] In an embodiment of the present application, optionally, the terminal may determine one or more perception target reference positions based on perception requirements, etc., and the perception target reference position information may be represented by latitude, longitude, altitude, etc. For example, the UE selects several typical positions (such as the edge position of the perception area, the center position of the perception area, etc.) within the perception area as reference perception target positions. If the terminal requests the network-side device to provide the expected possibility of LOS path transmission of the perception signal sending TRP to the perception target, this field is used by the network-side device to determine the expected possibility of LOS path transmission. The perception signal includes at least one of a reference signal and a downlink data signal.

[0504] 6) Segment information of the first message;

[0505] When the first message is large, the first message may be divided into multiple segments and transmitted in segments. The segmentation information of the first message may include at least one of the following: indication information indicating whether the first message is one of the multiple segments, indication information indicating the sequence number of the current segment, and indication information indicating the size of the current segment.

[0506] 7) Periodic sensing assistance data request indication.

[0507] This field is used to indicate a request for periodic transmission of perception assistance data.

[0508] 8) a reference signal identifier, the reference signal identifier including at least one of a reference signal type identifier and a configuration identifier;

[0509] Optionally, the reference signal identifier at least indicates the reference signal type (such as Channel State Information Reference Signal, CSI-RS), Positioning Reference Signal (Positioning Reference Signals, PRS), Demodulation Reference Signal (Demodulation Reference Signal, DMRS), etc.).

[0510] Optionally, the reference signal identifier may also indicate configuration information of one or a group of reference signals.

[0511] Optionally, the reference signal identifier includes at least one of a reference signal type identifier and a configuration identifier.

[0512] In an embodiment of the present application, one method is to indicate a reference signal type identifier (such as PRS, on-demand PRS, CSI-RS) in the reference signal identifier. If it is also necessary to indicate the configuration of one or a group of reference signals, a reference signal configuration identifier can be added to indicate the configuration of each reference signal, for example, indicating which reference signal configuration is configured by RRC. Another method is to indicate the reference signal type identifier and the configuration identifier of the reference signal through the reference signal identifier.

[0513] 9) Request indication of departure angle of reference signal;

[0514] Optionally, when the first message includes this field or the value of the specified information unit is specified (for example, when the specified bit is 1, it indicates a request, and when the bit is 0, it indicates no request), it indicates requesting the departure angle information of the reference signal.

[0515] 10) Request indication of arrival angle of reference signal;

[0516] Optionally, when the first message includes this field or the value of the specified information unit is specified (for example, when the specified bit is 1, it indicates a request, and when the bit is 0, it indicates no request), it indicates requesting the arrival angle information of the reference signal.

[0517] 11) Request indication of reference signal beam;

[0518] Optionally, when this field is included in the first message or by specifying the value of the information unit (for example, a request is indicated when the specified bit is 1, and no request is indicated when the bit is 0), it indicates a request for the beam information of the reference signal.

[0519] 12) Quasi Co-Location (QCL) request indication of the reference signal.

[0520] Optionally, when this field is included in the first message or the value of the specified information unit is specified (for example, a request is indicated when the specified bit is 1, and no request is indicated when the bit is 0), it indicates a request for the QCL information of the reference signal, such as whether the port of the reference signal is quasi-co-located, and for example, the reference signal includes multiple resources, each resource is QCL with a synchronization signal block (Synchronization Signal and PBCH block, SSB), and the QCL includes Type A, B, C or D.

[0521] 13) The minimum bandwidth of the required reference signal refers to the minimum total frequency domain bandwidth occupied by the reference signal;

[0522] 14) The maximum repetition period of the required reference signal refers to the maximum frequency at which the reference signal can be repeated;

[0523] 15) The minimum time domain length of the required reference signal refers to the minimum time domain time occupied by the reference signal;

[0524] 16) Minimum transmit power of the required reference signal refers to the minimum transmit power of the reference signal;

[0525] 17) The minimum waveform quality of the required reference signal refers to the side lobes of the reference signal waveform, such as the Doppler side lobe level not higher than X, the range side lobe not higher than Y, and the peak-to-average ratio not higher than Z.

[0526] 18) The minimum number of ports required for reference signals refers to the minimum number of ports for sending reference signals;

[0527] 19) The maximum beamwidth of the required reference signal is the angle between two specified power points of the beam. For example, in radar meteorology, the beamwidth is defined as the angle between two half-power points of the beam. The maximum beamwidth includes at least one of the vertical beamwidth and the horizontal beamwidth.

[0528] 20) Minimum number of different TRPs for transmitting the required reference signal. If this parameter is not provided, the network device, when providing reference signal assistance data, shall provide at least one TRP for the single frequency network (SFN) that the terminal can obtain, such as the serving TRP; or the network device shall provide at least one TPR corresponding to the cell identifier of the area corresponding to the aforementioned sensing target or sensing area.

[0529] 21) Send a request for the location information of the TRP of the sensing signal;

[0530] Optionally, when this field is included in the first message or by specifying the value of the information unit (for example, when the specified bit is 1, it indicates a request, and when the bit is 0, it indicates no request), it indicates the location information of the TRP requesting to send the perception signal.

[0531] The perception signal includes at least one of a reference signal and a downlink data signal.

[0532] In some embodiments, optionally, when the terminal uses downlink data for perception, the TRP in the perception calculation assistance data is the TRP of the sent downlink data;

[0533] In some embodiments, optionally, when the terminal uses a reference signal for sensing, existing CSI-RS configuration information in the communication has been obtained through the communication process, then the TRP in the sensing calculation auxiliary data is the TRP of the transmitted reference signal;

[0534] In some embodiments, optionally, the terminal requests both reference signal assistance data and the location of the TRP corresponding to the reference signal.

[0535] 22) Sending a request indication for time synchronization information between the reference TRP of the sensing signal and the neighboring TPR;

[0536] Optionally, when this field is included in the first message or by specifying the value of the information unit (for example, a request when the specified bit is 1, and no request when the specified bit is 0), it indicates a request for time synchronization information between the reference TRP and neighboring TRPs. In one embodiment, the reference TRP is the TRP of the terminal's serving cell (or primary serving cell).

[0537] 23) Sending a TRP sensing signal to send (Tx) timing error group information request indication;

[0538] One definition of a TRP Tx timing error group is that the Tx timing errors associated with TRP transmissions on one or more reference signal resources are within a certain range. For example, TRPs with a common clock source typically have smaller timing errors.

[0539] Optionally, when the first message includes this field or the value of the specified information unit is specified (for example, when the specified bit is 1, it indicates a request, and when the bit is 0, it indicates no request), it indicates requesting TPR Tx timing error group information.

[0540] Meanwhile, if the frequency error is expressed as Fe, then the time drift Delta T within time T = ±Fe×T. In addition, if the frequency drift is identified as F′, then the time drift Delta T within time T = ±0.5×F′×T 2 Therefore, according to the formula mapping relationship, the timing error group can also be mapped to the frequency error group indication.

[0541] 24) Sending a request indication for sensing the timing deviation between the TRP of the signal and the terminal;

[0542] Optionally, when this field is included in the first message or a value of a specified information unit is specified (for example, a request is indicated when a specified bit is 1, and no request is indicated when the bit is 0), a request for an indication of the timing offset between the TRP and the terminal is indicated. The timing offset between the TRP and the terminal includes at least one of the following: a timing offset between the TRP of a serving cell (primary serving cell) of the terminal and the terminal, and a timing offset between TRPs corresponding to one or more reference signal resources and the terminal.

[0543] 25) Sending a request indication of the clock frequency deviation between the TRP of the sensing signal and the terminal;

[0544] The clock frequency deviation between the TRP and the terminal is the difference in clock frequency between the TRP and the terminal during a specific time period. This can be determined by comparing the clock signals between the two. The smaller the clock frequency deviation, the better the clock synchronization between the TRP and the terminal.

[0545] Optionally, when this field is included in the first message or by specifying the value of the information unit (for example, when the specified bit is 1, it indicates a request, and when the bit is 0, it indicates no request), it indicates requesting the clock frequency deviation between the serving cell (or main serving cell) TRP and the terminal.

[0546] 26) Sending a TRP sensing signal to request a transmit (Tx) clock accuracy indication;

[0547] TRP Tx clock accuracy indicates the accuracy of the clock used by the TRP to transmit data, typically expressed in parts per million (ppm). A higher clock accuracy indicates a more accurate and stable clock used by the TRP to transmit data.

[0548] Optionally, when this field is included in the first message or by specifying the value of the information unit (for example, when the specified bit is 1, it indicates a request, and when the bit is 0, it indicates no request), it indicates requesting the TRP Tx clock accuracy information of the service cell (or main service cell).

[0549] 27) The TRP that sends the perception signal sends a request indication for clock deviation group information;

[0550] The TRP transmit clock deviation group is associated with one or more sensing signal resources whose clock frequency deviations are within a certain range, for example, they come from the same clock source. The terminal can use the TRP transmit clock deviation group indication to estimate the frequency deviation, achieving more accurate Doppler measurements.

[0551] Optionally, when this field is included in the first message or by specifying the value of the information unit (for example, when the specified bit is 1, it indicates a request, and when the bit is 0, it indicates no request), it indicates requesting the Tx clock deviation group information of the serving cell (or main serving cell) TRP and / or neighboring TRPs.

[0552] 28) Request indication for LOS-NLOS assistance information.

[0553] Optionally, the LOS-NLOS assistance information may also be referred to as LOS-NLOS probability.

[0554] Optionally, when the first message includes this field or the value of the specified information unit is specified (for example, when the specified bit is 1, it indicates request, and when the bit is 0, it indicates no request), it indicates requesting LOS-NLOS assistance information.

[0555] Optionally, the LOS-NLOS assistance information indication may be associated with a certain reference signal identifier.

[0556] Step 3: The network device receives the first message sent by the terminal and determines whether to provide the requested perception assistance data based on the first message, the currently configured reference signal, and the available resources. The network device sends a second message to the terminal, the second message being used to provide the perception assistance data, or sends a third message to the terminal, the third message being used to reject the request for the perception assistance data.

[0557] In some embodiments, optionally, the third message may further include a rejection reason, such as the network-side device does not have the requested perception assistance data.

[0558] In some embodiments, optionally, if the second message is used to provide perception assistance data, the second message includes at least one of the following:

[0559] 1) Segment information of the second message;

[0560] When the second message is large, the network-side device may divide the second message into multiple segments and transmit the segments in segments. The segmentation information of the second message may include at least one of the following: indication information indicating whether the second message is one of the multiple segments, indication information indicating the sequence number of the current segment, and indication information indicating the size of the current segment.

[0561] 2) indication of periodic sensing assistance data;

[0562] This field is used to indicate that the second message is a message for periodically transmitting perception assistance data.

[0563] 3) Perceive the effective area of ​​auxiliary data;

[0564] This field is used to indicate the valid area of ​​the perception assistance data.

[0565] 4) Validity time of perception assistance data;

[0566] This field is used to indicate the valid time of the perception assistance data.

[0567] 5) Perception auxiliary data.

[0568] The perception assistance data includes reference signal assistance data, and the reference signal assistance data includes at least one of the following:

[0569] 51) Frequency layer information of the reference signal;

[0570] 52) A list of reference signal information for each TRP of each of the frequency layers.

[0571] 53) The location coordinates of the antenna reference point of the TRP that sends the sensing signal;

[0572] 54) beam information of the reference signal;

[0573] 55) Reference TRP cell ID;

[0574] 56) Sending time synchronization information between the reference TRP of the perception signal and the TRP;

[0575] 57) The TRP that sends the perception signal sends timing error group information;

[0576] 58) Timing deviation between the TRP sending the sensing signal and the terminal;

[0577] 59) The clock frequency deviation between the TRP sending the perception signal and the terminal;

[0578] 510) TRP sending clock accuracy of sending perception signal;

[0579] 511) The TRP that sends the sensing signal sends clock deviation group information;

[0580] 512)LOS-NLOS assistance information.

[0581] Step 4: The UE receives the second message sent by the network-side device. If the sensing assistance data is obtained, the UE receives a reference signal according to the sensing assistance data and performs sensing measurement to obtain the required sensing result.

[0582] In the embodiment of the present application, the second message can be sent to the UE through RRC reconfiguration or to one or more UEs through SIB.

[0583] Example 3: UE requests perception calculation auxiliary data

[0584] In this embodiment, it is assumed that the UE can receive the reference signal (such as CSI-RS or DMRS, etc.) of the serving cell (primary cell or secondary cell) according to the communication configuration. When the UE has a sensing requirement, some sensing calculation auxiliary data is required so that the UE can obtain the required sensing result based on the measurement.

[0585] The method for requesting and transmitting perception assistance data in an embodiment of the present application includes the following steps:

[0586] Step 1: The UE sends a first message to the network side device, where the first message is used to request sensing assistance data. The first message includes at least one of the following:

[0587] 1) Cell ID that provides sensing assistance data;

[0588] In some embodiments, optionally, the cell identifier is determined by the terminal according to at least one of an area where the sensing target is located, an area where the sensing area is located, and a capability of the terminal.

[0589] The cell identifier that provides the sensing assistance data may also be referred to as the cell identifier of the area corresponding to the sensing target or sensing area.

[0590] For example, when the sensing target is a terminal, the cell identifier providing sensing assistance data can be the serving cell ID. If the terminal has both a primary cell and a secondary cell, the corresponding cell identifier is the primary cell identifier. When the sensing area is the sensing area associated with the terminal (for example, obstacle sensing within 20 meters of the terminal), the terminal determines the cell identifier corresponding to the sensing area based on the sensing range and measurement as the cell identifier providing sensing assistance data. The number of cell identifiers may be 1 or greater depending on whether the terminal is located at the cell edge. For example, if the terminal is in the overlapping area of ​​cell A and cell B, based on the sensing range mapping relationship, this field will be cell A and cell B.

[0591] 2) Perception-assisted data types;

[0592] In some embodiments, optionally, the perception assistance data type includes at least one of reference signal assistance data, perception calculation assistance data, and sensor assistance data;

[0593] or,

[0594] The perception assistance data type includes at least one of reference signal assistance data and non-reference signal assistance data.

[0595] In this embodiment, the auxiliary data type is non-reference signal auxiliary data or perception calculation auxiliary data.

[0596] 3) a request indication for sensing the area validity of the assistance data;

[0597] Optionally, when the first message includes this field or the value of the specified information unit is specified (for example, a request is indicated when the specified bit is 1, and no request is indicated when the bit is 0), it indicates a request for a valid area of ​​the perception assistance data.

[0598] 4) a request indication for sensing the validity period of the assistance data;

[0599] When this field is included in the first message or the value of the specified information unit is specified (for example, a request is indicated when the specified bit is 1, and no request is indicated when the bit is 0), it indicates a request for the valid time information of the perception assistance data.

[0600] 5) Perceive the target reference position;

[0601] In an embodiment of the present application, optionally, the terminal may determine one or more perception target reference positions based on perception requirements, etc., and the perception target reference position information may be represented by latitude, longitude, altitude, etc. For example, the UE selects several typical positions (such as the edge position of the perception area, the center position of the perception area, etc.) within the perception area as reference perception target positions. If the terminal requests the network-side device to provide the expected possibility of LOS path transmission of the perception signal sending TRP to the perception target, this field is used by the network-side device to determine the expected possibility of LOS path transmission. The perception signal includes at least one of a reference signal and a downlink data signal.

[0602] 6) Segment information of the first message;

[0603] When the first message is large, the first message may be divided into multiple segments and transmitted in segments. The segmentation information of the first message may include at least one of the following: indication information indicating whether the first message is one of the multiple segments, indication information indicating the sequence number of the current segment, and indication information indicating the size of the current segment.

[0604] 7) Periodic sensing assistance data request indication.

[0605] This field is used to indicate a request for periodic transmission of perception assistance data.

[0606] 8) Send a request for the location information of the TRP of the sensing signal;

[0607] Optionally, when this field is included in the first message or by specifying the value of the information unit (for example, when the specified bit is 1, it indicates a request, and when the bit is 0, it indicates no request), it indicates the location information of the TRP requesting to send the perception signal.

[0608] 9) Sending a request indication for time synchronization information between the reference TRP of the sensing signal and the neighboring TPR;

[0609] Optionally, when this field is included in the first message or by specifying the value of the information unit (for example, a request when the specified bit is 1, and no request when the specified bit is 0), it indicates a request for time synchronization information between the reference TRP and neighboring TRPs. In one embodiment, the reference TRP is the TRP of the terminal's serving cell (or primary serving cell).

[0610] 10) Sending a TRP sensing signal to send (Tx) timing error group information request indication;

[0611] One definition of a TRP Tx timing error group is that the Tx timing errors associated with TRP transmissions on one or more reference signal resources are within a certain range. For example, TRPs with a common clock source typically have smaller timing errors.

[0612] Optionally, when the first message includes this field or the value of the specified information unit is specified (for example, when the specified bit is 1, it indicates a request, and when the bit is 0, it indicates no request), it indicates requesting TPR Tx timing error group information.

[0613] 11) Sending a request indication of the timing deviation between the TRP of the sensing signal and the terminal;

[0614] Optionally, when this field is included in the first message or a value of a specified information unit is specified (for example, a request is indicated when a specified bit is 1, and no request is indicated when the bit is 0), a request for an indication of the timing offset between the TRP and the terminal is indicated. The timing offset between the TRP and the terminal includes at least one of the following: a timing offset between the TRP of a serving cell (primary serving cell) of the terminal and the terminal, and a timing offset between TRPs corresponding to one or more reference signal resources and the terminal.

[0615] 12) Sending a request indication of the clock frequency deviation between the TRP of the sensing signal and the terminal;

[0616] The clock frequency deviation between the TRP and the terminal is the difference in clock frequency between the TRP and the terminal during a specific time period. This can be determined by comparing the clock signals between the two. The smaller the clock frequency deviation, the better the clock synchronization between the TRP and the terminal.

[0617] 13) Sending a TRP transmit (Tx) clock accuracy request indication for a sensing signal;

[0618] TRP Tx clock accuracy indicates the accuracy of the clock used by the TRP to transmit data, typically expressed in parts per million (ppm). A higher clock accuracy indicates a more accurate and stable clock used by the TRP to transmit data.

[0619] Optionally, when this field is included in the first message or by specifying the value of the information unit (for example, when the specified bit is 1, it indicates a request, and when the bit is 0, it indicates no request), it indicates requesting the TRP Tx clock accuracy information of the service cell (or main service cell).

[0620] 14) The TRP that sends the sensing signal sends a request indication for clock deviation group information;

[0621] The TRP transmit clock deviation group is associated with one or more sensing signal resources whose clock frequency deviations are within a certain range, for example, they come from the same clock source. The terminal can use the TRP transmit clock deviation group indication to estimate the frequency deviation, achieving more accurate Doppler measurements.

[0622] Optionally, when this field is included in the first message or by specifying the value of the information unit (for example, when the specified bit is 1, it indicates a request, and when the bit is 0, it indicates no request), it indicates requesting the Tx clock deviation group information of the serving cell (or main serving cell) TRP and / or neighboring TRPs.

[0623] 15) Request indication for LOS-NLOS assistance information.

[0624] Step 3: The network device receives the first message sent by the terminal and determines whether to provide the requested perception assistance data based on the first message, the currently configured reference signal, and the available resources. The network device sends a second message to the terminal, the second message being used to provide the perception assistance data, or sends a third message to the terminal, the third message being used to reject the request for the perception assistance data.

[0625] In some embodiments, optionally, the third message may further include a rejection reason, such as the network-side device does not have the requested perception assistance data.

[0626] In some embodiments, optionally, if the second message is used to provide perception assistance data, the second message includes at least one of the following:

[0627] 1) Segment information of the second message;

[0628] When the second message is large, the network-side device may divide the second message into multiple segments and transmit the segments in segments. The segmentation information of the second message may include at least one of the following: indication information indicating whether the second message is one of the multiple segments, indication information indicating the sequence number of the current segment, and indication information indicating the size of the current segment.

[0629] 2) indication of periodic sensing assistance data;

[0630] This field is used to indicate that the second message is a message for periodically transmitting perception assistance data.

[0631] 3) Perceive the effective area of ​​auxiliary data;

[0632] This field is used to indicate the valid area of ​​the perception assistance data.

[0633] 4) Validity time of perception assistance data;

[0634] This field is used to indicate the valid time of the perception assistance data.

[0635] 5) Perception auxiliary data.

[0636] The perception assistance data includes perception computing assistance data, and the perception computing assistance data includes at least one of the following:

[0637] 51) The location coordinates of the antenna reference point of the TRP that sends the sensing signal;

[0638] 52) beam information of the reference signal;

[0639] 53) Reference TRP cell ID;

[0640] 54) Sending time synchronization information between the reference TRP of the perception signal and the TRP;

[0641] 55) The TRP that sends the sensing signal sends timing error group (TEG) information; one method is to represent the TEG information through a TEG identifier.

[0642] 56) Timing deviation between the TRP sending the sensing signal and the terminal;

[0643] 57) The clock frequency deviation between the TRP sending the perception signal and the terminal;

[0644] 58) TRP sending clock accuracy for sending perception signals;

[0645] 59) The TRP that sends the perception signal sends clock deviation group information;

[0646] 510) LOS-NLOS assistance information.

[0647] Step 4: The UE receives the second message sent by the network-side device. If the sensing assistance data is obtained, the UE receives a reference signal according to the sensing assistance data and performs sensing measurement to obtain the required sensing result.

[0648] In the embodiment of the present application, the second message can be sent to the UE through RRC reconfiguration or to one or more UEs through SIB.

[0649] Example 4: UE requests sensor assistance data

[0650] The method for requesting and transmitting perception assistance data in an embodiment of the present application includes the following steps:

[0651] Step 1: Optionally, the UE requests an available sensor assistance data type from the network side device. The network side device sends a response message to provide the sensor assistance data type, where the sensor assistance data type includes at least one of WLAN, Bluetooth, or camera.

[0652] Step 2: Optionally, the network-side device sends available sensor-assisted data types via a broadcast message (such as SIB), where the sensor-assisted data type includes at least one of WLAN, Bluetooth, or camera.

[0653] Step 3: The UE sends a first message to the network side device based on the sensor assistance data accumulation and sensing requirements available from the network side device. The first message is used to request sensing assistance data. The first message includes at least one of the following:

[0654] 1) Cell ID that provides sensing assistance data;

[0655] In some embodiments, optionally, the cell identifier is determined by the terminal according to at least one of an area where the sensing target is located, an area where the sensing area is located, and a capability of the terminal.

[0656] The cell identifier that provides the sensing assistance data may also be referred to as the cell identifier of the area corresponding to the sensing target or sensing area.

[0657] For example, when the sensing target is a terminal, the cell identifier providing sensing assistance data can be the serving cell ID. If the terminal has both a primary cell and a secondary cell, the corresponding cell identifier is the primary cell identifier. When the sensing area is the sensing area associated with the terminal (for example, obstacle sensing within 20 meters of the terminal), the terminal determines the cell identifier corresponding to the sensing area based on the sensing range and measurement as the cell identifier providing sensing assistance data. The number of cell identifiers may be 1 or greater depending on whether the terminal is located at the cell edge. For example, if the terminal is in the overlapping area of ​​cell A and cell B, based on the sensing range mapping relationship, this field will be cell A and cell B.

[0658] 2) Perception-assisted data types;

[0659] In some embodiments, optionally, the perception assistance data type includes at least one of reference signal assistance data, perception calculation assistance data, and sensor assistance data;

[0660] or,

[0661] The perception assistance data type includes at least one of reference signal assistance data and non-reference signal assistance data.

[0662] In this embodiment, the auxiliary data type is non-reference signal auxiliary data or sensor auxiliary data.

[0663] 3) a request indication for sensing the area validity of the assistance data;

[0664] Optionally, when the first message includes this field or the value of the specified information unit is specified (for example, a request is indicated when the specified bit is 1, and no request is indicated when the bit is 0), it indicates a request for a valid area of ​​the perception assistance data.

[0665] 4) a request indication for sensing the validity period of the assistance data;

[0666] When this field is included in the first message or the value of the specified information unit is specified (for example, a request is indicated when the specified bit is 1, and no request is indicated when the bit is 0), it indicates a request for the valid time information of the perception assistance data.

[0667] 5) Perceive the target reference position;

[0668] In an embodiment of the present application, optionally, the terminal may determine one or more perception target reference positions based on perception requirements, etc., and the perception target reference position information may be represented by latitude, longitude, altitude, etc. For example, the UE selects several typical positions (such as the edge position of the perception area, the center position of the perception area, etc.) within the perception area as reference perception target positions. If the terminal requests the network-side device to provide the expected possibility of LOS path transmission of the perception signal sending TRP to the perception target, this field is used by the network-side device to determine the expected possibility of LOS path transmission. The perception signal includes at least one of a reference signal and a downlink data signal.

[0669] 6) Segment information of the first message;

[0670] When the first message is large, the first message may be divided into multiple segments and transmitted in segments. The segmentation information of the first message may include at least one of the following: indication information indicating whether the first message is one of the multiple segments, indication information indicating the sequence number of the current segment, and indication information indicating the size of the current segment.

[0671] 7) Periodic sensing assistance data request indication.

[0672] This field is used to indicate a request for periodic transmission of perception assistance data.

[0673] 8) Request indication of WLAN information;

[0674] Optionally, when this field is included in the first message or by specifying the value of the information unit (for example, a request when the specified bit is 1 and no request when the bit is 0), it indicates a request for WLAN information (such as CSI information with timestamp).

[0675] 9) Bluetooth information request indication;

[0676] Optionally, when the first message includes this field or a value of a specified information unit (for example, a request when the specified bit is 1 and no request when the bit is 0) is used, it indicates a request for Bluetooth information.

[0677] 10) Request for camera information.

[0678] Optionally, when this field is included in the first message or by specifying the value of the information unit (for example, a request when the specified bit is 1 and no request when the bit is 0), it indicates a request for camera information (for example, a video or picture with a timestamp, etc.).

[0679] Step 4: The network device receives the first message sent by the terminal and determines whether to provide the requested perception assistance data based on the first message and the sensor data. The network device sends a second message to the terminal to provide the perception assistance data, or sends a third message to the terminal to reject the request for the perception assistance data.

[0680] In some embodiments, optionally, the third message may further include a rejection reason, such as the network-side device does not have the requested perception assistance data.

[0681] In some embodiments, optionally, if the second message is used to provide perception assistance data, the second message includes at least one of the following:

[0682] 1) Segment information of the second message;

[0683] When the second message is large, the network-side device may divide the second message into multiple segments and transmit the segments in segments. The segmentation information of the second message may include at least one of the following: indication information indicating whether the second message is one of the multiple segments, indication information indicating the sequence number of the current segment, and indication information indicating the size of the current segment.

[0684] 2) indication of periodic sensing assistance data;

[0685] This field is used to indicate that the second message is a message for periodically transmitting perception assistance data.

[0686] 3) Perceive the effective area of ​​auxiliary data;

[0687] This field is used to indicate the valid area of ​​the perception assistance data.

[0688] 4) Validity time of perception assistance data;

[0689] This field is used to indicate the valid time of the perception assistance data.

[0690] 5) Perception auxiliary data.

[0691] The perception assistance data includes sensor assistance data, and the sensor assistance data includes at least one of the following:

[0692] 51) WLAN information, such as CSI information with timestamp;

[0693] 52) Bluetooth information, such as measurement data or sensing results with time stamps;

[0694] 53) Camera information, such as videos or pictures with time stamps.

[0695] Step 5: The UE receives the second message sent by the network side device. If the sensing auxiliary data is obtained, the UE obtains the sensing result according to the sensing auxiliary data, or obtains the required sensing result in combination with other sensing data obtained by the UE.

[0696] In the embodiment of the present application, the second message can be sent to the UE through RRC reconfiguration or to one or more UEs through SIB.

[0697] The method for transmitting perception-assisted data provided in the embodiment of the present application can be executed by a transmission device for perception-assisted data. In the embodiment of the present application, the method for transmitting perception-assisted data is executed by a transmission device for perception-assisted data as an example to illustrate the transmission device for perception-assisted data provided in the embodiment of the present application.

[0698] Referring to FIG. 7 , an embodiment of the present application further provides a device 70 for requesting perception assistance data, including:

[0699] The sending module 71 is used to send a first message to the network side device, where the first message is used to request perception auxiliary data, and the perception auxiliary data is used to assist the terminal in perception, including at least one of reference signal auxiliary data, perception calculation auxiliary data, and sensor auxiliary data.

[0700] In an embodiment of the present application, the terminal requests the required perception assistance data from the network-side device during perception, which enables the terminal to use the perception assistance data to assist in the perception measurement of the perception signal (reference signal and / or downlink data signal), thereby being able to more flexibly utilize the reference signal and / or downlink data signal of the air interface to obtain the required perception result, thereby improving perception performance. At the same time, the method of obtaining the perception result through the perception assistance data can minimize the exposure of user perception-related information, thereby providing perception privacy and security.

[0701] In some embodiments, optionally, the first message includes at least one of the following:

[0702] The cell identity providing sensing assistance data;

[0703] Perception auxiliary data types;

[0704] A request indication of a valid area for sensing assistance data;

[0705] A request indication of the validity period of the sensing assistance data;

[0706] Perceive the target reference position;

[0707] Segment information of the first message;

[0708] Indication of request for periodic sensing assistance data.

[0709] In some embodiments, optionally, the cell identifier is determined by the terminal according to at least one of an area where the sensing target is located, an area where the sensing area is located, and a capability of the terminal.

[0710] In some embodiments, optionally, the perception assistance data type includes at least one of reference signal assistance data or non-reference signal assistance data;

[0711] or,

[0712] The perception assistance data type includes at least one of reference signal assistance data, perception calculation assistance data, and sensor assistance data.

[0713] In some embodiments, optionally, the first message further includes at least one of the following:

[0714] the minimum bandwidth of the required reference signal;

[0715] The maximum repetition period of the required reference signal;

[0716] The minimum time domain length of the required reference signal;

[0717] The minimum transmit power of the required reference signal;

[0718] Minimum waveform quality of the required reference signal;

[0719] Minimum number of ports required for reference signals;

[0720] The maximum beamwidth of the required reference signal;

[0721] The minimum number of different site transmit / receive points (TRPs) that transmit the required reference signal.

[0722] In some embodiments, optionally, the first message further includes at least one of the following:

[0723] A reference signal identifier, the reference signal identifier comprising: at least one of a reference signal type identifier and a configuration identifier;

[0724] a request indication of a departure angle of a reference signal;

[0725] a request indication of the angle of arrival of a reference signal;

[0726] a request indication of a reference signal beam;

[0727] A request indication for a quasi-co-located QCL of a reference signal.

[0728] In some embodiments, optionally, the first message further includes at least one of the following:

[0729] Send a request for the location information of the TRP of the perception signal;

[0730] Send a request indication for time synchronization information between the reference TRP of the perception signal and the neighboring TPR;

[0731] The TRP that sends the perception signal sends a request indication for timing error group information;

[0732] Send a request indication of the timing deviation between the TRP of the perception signal and the terminal;

[0733] Send a request indication of the clock frequency deviation between the TRP of the sensing signal and the terminal;

[0734] The TRP that sends the perception signal sends a request indication of clock accuracy;

[0735] The TRP that sends the sensing signal sends a request indication for clock deviation group information;

[0736] Request indication for LOS-NLOS assistance information;

[0737] The perception signal includes at least one of a reference signal and a downlink data signal.

[0738] In some embodiments, optionally, the first message further includes at least one of the following:

[0739] WLAN information request indication;

[0740] Bluetooth information request indication;

[0741] Indicates a request for camera information.

[0742] In some embodiments, optionally, the sensing assistance data transmission device 70 further includes:

[0743] The receiving module is used to receive a second message sent by the network side device, where the second message is used to provide the perception auxiliary data, or the terminal receives a third message sent by the network side device, where the third message is used to reject the request for the perception auxiliary data.

[0744] In some embodiments, optionally, the second message includes at least one of the following:

[0745] Segment information of the second message;

[0746] indication of periodic sensing assistance data;

[0747] Perceive the effective area of ​​auxiliary data;

[0748] The validity period of the perception assistance data.

[0749] In some embodiments, optionally, the perception assistance data includes reference signal assistance data, and the reference signal assistance data further includes at least one of the following:

[0750] Frequency layer information of the reference signal;

[0751] A list of reference signal information for each TRP of each of the frequency layers.

[0752] In some embodiments, optionally, the frequency layer information includes at least one of the following:

[0753] Waveform of the reference signal;

[0754] subcarrier spacing of the reference signal;

[0755] Guard interval of reference signal;

[0756] The bandwidth of the reference signal;

[0757] the burst duration of the reference signal;

[0758] The time domain interval of the reference signal;

[0759] The frequency starting position of the reference signal;

[0760] point-A of the reference signal;

[0761] The inter-group spacing of the reference signal;

[0762] Cyclic prefix of the reference signal.

[0763] In some embodiments, optionally, the reference signal information of each TRP includes at least one of the following:

[0764] Reference signal identification;

[0765] The cell identifier of the TRP;

[0766] Refer to the cell ID where the TRP is located;

[0767] The time offset between SFN0 timeslot 0 of the TRP and SFN0 timeslot 0 of the reference TRP;

[0768] a reference signal time difference measured between the TRP and a reference TRP;

[0769] The expected angle of arrival AoA or angle of departure AoD of the terminal position;

[0770] QCL information of the reference signal;

[0771] Beam information of the reference signal.

[0772] transmit power of the reference signal;

[0773] Transmitting port information of the reference signal;

[0774] Signal format of the reference signal;

[0775] Time resources of reference signals;

[0776] Frequency resources of reference signals.

[0777] In some embodiments, optionally, the beam information of the reference signal includes at least one of the following:

[0778] Reference signal identifier containing beam information;

[0779] the azimuth of the TRP;

[0780] the downtilt angle of the TRP;

[0781] the tilt angle of the TRP;

[0782] Beam information of each reference signal resource on the TRP.

[0783] In some embodiments, optionally, the perception assistance data further includes perception computing assistance data, and the perception computing assistance data includes at least one of the following:

[0784] The location coordinates of the antenna reference point of the TRP that sends the sensing signal;

[0785] Beam information of the reference signal;

[0786] Refer to the cell ID where the TRP is located;

[0787] Time synchronization information between a reference TRP for sending perception signals and the TRP;

[0788] The TRP that sends the perception signal sends timing error group information;

[0789] Timing deviation between the TRP that sends the sensing signal and the terminal;

[0790] The clock frequency deviation between the TRP that sends the sensing signal and the terminal;

[0791] TRP sending clock accuracy for sending perception signals;

[0792] The TRP that sends the sensing signal sends the clock deviation group information;

[0793] LOS-NLOS assistance information.

[0794] In some embodiments, optionally,

[0795] The perception assistance data provided by the network-side device includes a perception signal resource, and the LOS-NLOS assistance information includes at least one of the following:

[0796] A first value, where the first value is a value corresponding to an expected probability of an LOS transmission path of the sensing signal corresponding to the sensing signal resource from the TRP to the terminal;

[0797] a second value, where the second value is a value corresponding to an expected probability of an LOS transmission path of the perception signal corresponding to the perception signal resource from the TRP to the perception target;

[0798] or

[0799] The perception assistance data provided by the network side device includes multiple perception signal resources, and the LOS-NLOS assistance information includes at least one of the following:

[0800] a third value, where the third value represents a total expected probability of an LOS transmission path of the sensing signals corresponding to all the sensing signal resources from the TRP to the terminal;

[0801] a fourth numerical list, where the fourth numerical value represents an expected probability of an LOS transmission path of the perception signal corresponding to each of the perception signal resources from the TRP to the terminal;

[0802] a fifth value and an indication of a sensing signal resource corresponding to the fifth value, wherein the fifth value represents a maximum value among expected possibilities of LOS transmission paths of the sensing signals corresponding to all the sensing signal resources from the TRP to the terminal;

[0803] a sixth value, where the sixth value represents a total expected probability of an LOS transmission path of the sensing signals corresponding to all the sensing signal resources from the TRP to the sensing target (such as the aforementioned sensing target reference position);

[0804] a seventh numerical list, where the seventh numerical value represents an expected probability of an LOS transmission path of the sensing signal corresponding to each of the sensing signal resources from the TRP to the sensing target;

[0805] An eighth value and a perception signal resource indication corresponding to the eighth value, wherein the eighth value represents a maximum value among expected possibilities of LOS transmission paths of the perception signals corresponding to all the perception signal resources from the TRP to the perception target.

[0806] In some embodiments, optionally, the second message further includes at least one of the following:

[0807] WLAN information;

[0808] Bluetooth information;

[0809] Camera information.

[0810] The transmission device of the perception-assisted data in the embodiment of the present application can be an electronic device, such as an electronic device with an operating system, or a component in an electronic device, such as an integrated circuit or a chip. The electronic device can be a terminal, or it can be a device other than a terminal. For example, the terminal can include but is not limited to the types of terminals 11 listed above, and other devices can be servers, network attached storage (NAS), etc., which are not specifically limited in the embodiment of the present application.

[0811] The method and apparatus for transmitting perception-assisted data provided in the embodiment of the present application can implement each process implemented in the method embodiment of FIG5 and achieve the same technical effect. To avoid repetition, they will not be described here.

[0812] Referring to FIG. 8 , an embodiment of the present application further provides a device 80 for transmitting sensing assistance data, including:

[0813] A receiving module 81 is configured to receive a first message sent by a terminal, where the first message is used to request sensing assistance data, where the sensing assistance data is used to assist the terminal in sensing, and includes at least one of reference signal assistance data, sensing calculation assistance data, and sensor assistance data.

[0814] The sending module 82 is configured to send a second message to the terminal according to the first message, where the second message is used to provide the perception assistance data, or to send a third message to the terminal, where the third message is used to reject the request for the perception assistance data.

[0815] In some embodiments, optionally, the first message includes at least one of the following:

[0816] providing a cell identifier for the sensing assistance data;

[0817] Perception auxiliary data types;

[0818] A request indication of a valid area for sensing assistance data;

[0819] A request indication of the validity period of the sensing assistance data;

[0820] Perceive the target reference position;

[0821] Segment information of the first message;

[0822] Indication of request for periodic sensing assistance data.

[0823] In some embodiments, optionally, the perception assistance data type includes at least one of reference signal assistance data or non-reference signal assistance data;

[0824] or,

[0825] The perception assistance data type includes at least one of reference signal assistance data, perception calculation assistance data, and sensor assistance data.

[0826] In some embodiments, optionally, the first message further includes at least one of the following:

[0827] the minimum bandwidth of the required reference signal;

[0828] The maximum repetition period of the required reference signal;

[0829] The minimum time domain length of the required reference signal;

[0830] The minimum transmit power of the required reference signal;

[0831] Minimum waveform quality of the required reference signal;

[0832] Minimum number of ports required for reference signals;

[0833] The maximum beamwidth of the required reference signal;

[0834] The minimum number of different sites TRP that transmit the required reference signal.

[0835] In some embodiments, optionally, the first message further includes at least one of the following:

[0836] A reference signal identifier, the reference signal identifier comprising: at least one of a reference signal type identifier and a configuration identifier;

[0837] a request indication of a departure angle of a reference signal;

[0838] a request indication of the angle of arrival of a reference signal;

[0839] a request indication of a reference signal beam;

[0840] A request indication for a quasi-co-located QCL of a reference signal.

[0841] In some embodiments, optionally, the first message further includes at least one of the following:

[0842] Send a request for the location information of the TRP of the perception signal;

[0843] Send a request indication for time synchronization information between the reference TRP of the perception signal and the neighboring TPR;

[0844] The TRP that sends the perception signal sends a request indication for timing error group information;

[0845] Send a request indication of the timing deviation between the TRP of the perception signal and the terminal;

[0846] Send a request indication of the clock frequency deviation between the TRP of the sensing signal and the terminal;

[0847] The TRP that sends the perception signal sends a request indication of clock accuracy;

[0848] The TRP that sends the sensing signal sends a request indication for clock deviation group information;

[0849] Request indication for LOS-NLOS assistance information;

[0850] The perception signal includes at least one of a reference signal and a downlink data signal.

[0851] In some embodiments, optionally, the first message further includes at least one of the following:

[0852] WLAN information request indication;

[0853] Bluetooth information request indication;

[0854] Indicates a request for camera information.

[0855] In some embodiments, optionally, the second message includes at least one of the following:

[0856] Segment information of the second message;

[0857] indication of periodic sensing assistance data;

[0858] Perceive the effective area of ​​auxiliary data;

[0859] The validity period of the perception assistance data.

[0860] In some embodiments, optionally, the perception assistance data includes reference signal assistance data, and the reference signal assistance data includes at least one of the following:

[0861] Frequency layer information of the reference signal;

[0862] A list of reference signal information for each TRP of each of the frequency layers.

[0863] In some embodiments, optionally, the frequency layer information includes at least one of the following:

[0864] Waveform of the reference signal;

[0865] subcarrier spacing of the reference signal;

[0866] Guard interval of reference signal;

[0867] The bandwidth of the reference signal;

[0868] the burst duration of the reference signal;

[0869] The time domain interval of the reference signal;

[0870] The frequency starting position of the reference signal;

[0871] point-A of the reference signal;

[0872] The inter-group spacing of the reference signal;

[0873] Cyclic prefix of the reference signal.

[0874] In some embodiments, optionally, the reference signal information of each TRP includes at least one of the following: a reference signal identifier;

[0875] The cell identifier of the TRP;

[0876] Refer to the cell ID where the TRP is located;

[0877] The time offset between SFN0 timeslot 0 of the TRP and SFN0 timeslot 0 of the reference TRP;

[0878] a reference signal time difference measured between the TRP and a reference TRP;

[0879] The expected angle of arrival AoA or angle of departure AoD of the terminal position;

[0880] QCL information of the reference signal;

[0881] Beam information of the reference signal.

[0882] transmit power of the reference signal;

[0883] Transmitting port information of the reference signal;

[0884] Signal format of the reference signal;

[0885] Time resources of reference signals;

[0886] Frequency resources of reference signals.

[0887] In some embodiments, optionally, the beam information of the reference signal includes at least one of the following:

[0888] Reference signal identifier containing beam information;

[0889] the azimuth of the TRP;

[0890] the downtilt angle of the TRP;

[0891] the tilt angle of the TRP;

[0892] Beam information of each reference signal resource on the TRP.

[0893] In some embodiments, optionally, the perception assistance data includes perception computing assistance data, and the perception computing assistance data includes at least one of the following:

[0894] The location coordinates of the antenna reference point of the TRP that sends the sensing signal;

[0895] Beam information of the reference signal;

[0896] Refer to the cell ID where the TRP is located;

[0897] Time synchronization information between a reference TRP for sending perception signals and the TRP;

[0898] The TRP that sends the perception signal sends timing error group information;

[0899] Timing deviation between the TRP that sends the sensing signal and the terminal;

[0900] The clock frequency deviation between the TRP that sends the sensing signal and the terminal;

[0901] TRP sending clock accuracy for sending perception signals;

[0902] The TRP that sends the sensing signal sends the clock deviation group information;

[0903] LOS-NLOS assistance information.

[0904] In some embodiments, optionally,

[0905] The perception assistance data provided by the network-side device includes a perception signal resource, and the LOS-NLOS assistance information includes at least one of the following:

[0906] A first value, where the first value is a value corresponding to an expected probability of an LOS transmission path of the sensing signal corresponding to the sensing signal resource from the TRP to the terminal;

[0907] a second value, where the second value is a value corresponding to an expected probability of an LOS transmission path of the perception signal corresponding to the perception signal resource from the TRP to the perception target;

[0908] or

[0909] The perception assistance data provided by the network side device includes multiple perception signal resources, and the LOS-NLOS assistance information includes at least one of the following:

[0910] a third value, where the third value represents a total expected probability of an LOS transmission path of the sensing signals corresponding to all the sensing signal resources from the TRP to the terminal;

[0911] a fourth numerical list, where the fourth numerical value represents an expected probability of an LOS transmission path of the perception signal corresponding to each of the perception signal resources from the TRP to the terminal;

[0912] a fifth value and an indication of a sensing signal resource corresponding to the fifth value, wherein the fifth value represents a maximum value among expected possibilities of LOS transmission paths of the sensing signals corresponding to all the sensing signal resources from the TRP to the terminal;

[0913] a sixth value, where the sixth value represents a total expected probability of an LOS transmission path of the sensing signals corresponding to all the sensing signal resources from the TRP to the sensing target (such as the aforementioned sensing target reference position);

[0914] a seventh numerical list, where the seventh numerical value represents an expected probability of an LOS transmission path of the sensing signal corresponding to each of the sensing signal resources from the TRP to the sensing target;

[0915] An eighth value and a perception signal resource indication corresponding to the eighth value, wherein the eighth value represents a maximum value among expected possibilities of LOS transmission paths of the perception signals corresponding to all the perception signal resources from the TRP to the perception target.

[0916] In some embodiments, optionally, the second message further includes at least one of the following:

[0917] WLAN information;

[0918] Bluetooth information;

[0919] Camera information.

[0920] The method and apparatus for transmitting perception-assisted data provided in the embodiment of the present application can implement the various processes implemented in the method embodiment of Figure 6 and achieve the same technical effects. To avoid repetition, they will not be described here.

[0921] As shown in Figure 9, an embodiment of the present application further provides a communication device 90, including a processor 91 and a memory 92. The memory 92 stores a program or instruction that can be executed on the processor 91. For example, when the communication device 90 is a terminal, the program or instruction, when executed by the processor 91, implements the various steps of the above-mentioned embodiment of the method for transmitting perception-assisted data, and can achieve the same technical effect. When the communication device 90 is a network-side device, the program or instruction, when executed by the processor 91, implements the various steps of the above-mentioned embodiment of the method for transmitting perception-assisted data, and can achieve the same technical effect. To avoid repetition, it will not be repeated here.

[0922] The present application also provides a terminal including a processor and a communication interface, wherein the communication interface is coupled to the processor, and the processor is configured to execute a program or instruction to implement the steps of the method embodiment shown in FIG5 . This terminal embodiment corresponds to the aforementioned terminal-side method embodiment, and each implementation process and implementation method of the aforementioned method embodiment is applicable to this terminal embodiment and can achieve the same technical effects. Specifically, FIG10 is a schematic diagram of the hardware structure of a terminal implementing an embodiment of the present application.

[0923] The terminal 100 includes but is not limited to: a radio frequency unit 101, a network module 102, an audio output unit 103, an input unit 104, a sensor 105, a display unit 106, a user input unit 107, an interface unit 108, a memory 109 and at least some of the components of a processor 1010.

[0924] Those skilled in the art will appreciate that the terminal 100 may also include a power supply (such as a battery) to power various components. The power supply may be logically connected to the processor 1010 via a power management system, thereby enabling the power management system to manage charging, discharging, and power consumption. The terminal structure shown in FIG10 does not limit the terminal. The terminal may include more or fewer components than shown, or may combine certain components, or have different component arrangements, which will not be described in detail here.

[0925] It should be understood that in an embodiment of the present application, the input unit 104 may include a graphics processing unit (GPU) 1041 and a microphone 1042, and the graphics processor 1041 processes the image data of a static picture or video obtained by an image capture device (such as a camera) in a video capture mode or an image capture mode. The display unit 106 may include a display panel 1061, and the display panel 1061 may be configured in the form of a liquid crystal display, an organic light emitting diode, etc. The user input unit 107 includes a touch panel 1071 and at least one of other input devices 1072. The touch panel 1071 is also called a touch screen. The touch panel 1071 may include two parts: a touch detection device and a touch controller. Other input devices 1072 may include, but are not limited to, a physical keyboard, function keys (such as volume control keys, switch keys, etc.), a trackball, a mouse, and a joystick, which will not be repeated here.

[0926] In the embodiment of the present application, after receiving downlink data from a network-side device, the RF unit 101 may transmit the data to the processor 1010 for processing. Furthermore, the RF unit 101 may send uplink data to the network-side device. Typically, the RF unit 101 includes, but is not limited to, an antenna, an amplifier, a transceiver, a coupler, a low-noise amplifier, a duplexer, and the like.

[0927] The memory 109 can be used to store software programs or instructions and various data. The memory 109 may mainly include a first storage area for storing programs or instructions and a second storage area for storing data, wherein the first storage area may store an operating system, applications or instructions required for at least one function (such as a sound playback function, an image playback function, etc.). In addition, the memory 109 may include a volatile memory or a non-volatile memory. Among them, the non-volatile memory may be a read-only memory (ROM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), an electrically erasable programmable read-only memory (EEPROM), or a flash memory. The volatile memory may be a random access memory (RAM), a static random access memory (SRAM), a dynamic random access memory (DRAM), a synchronous dynamic random access memory (SDRAM), a double data rate synchronous dynamic random access memory (DDRSDRAM), an enhanced synchronous dynamic random access memory (ESDRAM), a synchronous link dynamic random access memory (SLDRAM), and a direct memory bus random access memory (DRRAM). The memory 109 in the embodiment of the present application includes but is not limited to these and any other suitable types of memory.

[0928] Processor 1010 may include one or more processing units. Optionally, processor 1010 integrates an application processor and a modem processor. The application processor primarily handles operations related to the operating system, user interface, and application programs, while the modem processor primarily processes wireless communication signals, such as a baseband processor. It is understood that the modem processor may not be integrated into processor 1010.

[0929] Among them, the radio frequency unit 101 is used to send a first message to the network side device, where the first message is used to request perception auxiliary data, and the perception auxiliary data is used to assist the terminal in perception, including at least one of reference signal auxiliary data, perception calculation auxiliary data, and sensor auxiliary data.

[0930] In an embodiment of the present application, the terminal requests the required perception assistance data from the network-side device during perception, which enables the terminal to use the perception assistance data to assist in the perception measurement of the perception signal (reference signal and / or downlink data signal), thereby being able to more flexibly utilize the reference signal and / or downlink data signal of the air interface to obtain the required perception result, thereby improving perception performance. At the same time, the method of obtaining the perception result through the perception assistance data can minimize the exposure of user perception-related information, thereby providing perception privacy and security.

[0931] It can be understood that the implementation process of each implementation method mentioned in this embodiment can refer to the relevant description of the method embodiment shown in Figure 5, and achieve the same or corresponding technical effects. To avoid repetition, it will not be repeated here.

[0932] The present application 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 configured to execute a program or instruction to implement the steps of the method embodiment shown in FIG6 . This network-side device embodiment corresponds to the aforementioned network-side device method embodiment, and each implementation process and implementation method of the aforementioned method embodiment are applicable to this network-side device embodiment and can achieve the same technical effects.

[0933] Specifically, embodiments of the present application also provide a network-side device. As shown in Figure 11, the network-side device 110 includes an antenna 111, a radio frequency device 112, a baseband device 113, a processor 114, and a memory 115. Antenna 111 is connected to radio frequency device 112. In the uplink direction, radio frequency device 112 receives information via antenna 111 and sends the received information to baseband device 113 for processing. In the downlink direction, baseband device 113 processes the information to be transmitted and sends it to radio frequency device 112. Radio frequency device 112 processes the received information and then sends it through antenna 111.

[0934] The method executed by the network-side device in the above embodiment may be implemented in the baseband device 113 , which includes a baseband processor.

[0935] The baseband device 113 may include, for example, at least one baseband board, on which multiple chips are arranged, as shown in Figure 11, one of the chips is, for example, a baseband processor, which is connected to the memory 115 through a bus interface to call the program in the memory 115 to execute the network device operations shown in the above method embodiment.

[0936] The network side device may further include a network interface 116, which is, for example, a Common Public Radio Interface (CPRI).

[0937] Specifically, the network side device 110 of the embodiment of the present application also includes: instructions or programs stored in the memory 115 and executable on the processor 114. The processor 114 calls the instructions or programs in the memory 115 to execute the methods of execution of each module shown in Figure 8 and achieve the same technical effect. To avoid repetition, it will not be described here.

[0938] Specifically, the embodiment of the present application further provides a network-side device. As shown in FIG12 , the network-side device 120 includes a processor 121, a network interface 122, and a memory 123. The network interface 122 is, for example, a common public radio interface (CPRI).

[0939] Specifically, the network side device 120 of the embodiment of the present application also includes: instructions or programs stored in the memory 123 and executable on the processor 121. The processor 121 calls the instructions or programs in the memory 123 to execute the method of execution of each module shown in Figure 8 and achieve the same technical effect. To avoid repetition, it will not be repeated here.

[0940] An embodiment of the present application also provides a readable storage medium, on which a program or instruction is stored. When the program or instruction is executed by a processor, the various processes of the above-mentioned embodiment of the method for transmitting perception-assisted data are implemented, and the same technical effect can be achieved. To avoid repetition, it will not be repeated here.

[0941] The processor is the processor in the terminal described in the above embodiment. The readable storage medium includes a computer-readable storage medium, such as a computer read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk. In some examples, the readable storage medium may be a non-transitory readable storage medium.

[0942] An embodiment of the present application further provides a chip, which includes 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 the various processes of the above-mentioned embodiment of the method for transmitting perception-assisted data, and can achieve the same technical effect. To avoid repetition, it will not be repeated here.

[0943] It should be understood that the chip mentioned in the embodiments of the present application can also be called a system-level chip, a system chip, a chip system or a system-on-chip chip, etc.

[0944] An embodiment of the present application further provides a computer program / program product, which is stored in a storage medium. When the computer program / program product is executed by at least one processor, it implements the steps of the above-mentioned method for requesting perception-assisted data, or implements the above-mentioned steps for transmitting perception-assisted data.

[0945] An embodiment of the present application also provides a wireless communication system, including: a terminal and a network-side device, wherein the terminal can be used to execute the steps of the above-mentioned method for transmitting perception-assisted data, and the network-side device can be used to execute the steps of the above-mentioned method for transmitting perception-assisted data.

[0946] It should be noted that, in this article, the terms "comprise", "include" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprises a ..." does not exclude the presence of other identical elements in the process, method, article or device comprising the element. In addition, it should be pointed out that the scope of the methods and devices in the embodiments of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in the opposite order according to the functions involved. For example, the described method may be performed in an order different from that described, and various steps may also be added, omitted or combined. In addition, the features described with reference to certain examples may be combined in other examples.

[0947] Through the description of the above embodiments, those skilled in the art can clearly understand that the above-mentioned embodiment methods can be implemented by means of a computer software product plus a necessary general-purpose hardware platform, or of course, by hardware. The computer software product is stored in a storage medium (such as ROM, RAM, magnetic disk, optical disk, etc.) and includes a number of instructions for enabling a terminal or network-side device to execute the methods described in each embodiment of the present application.

[0948] The embodiments of the present application are described above in conjunction with the accompanying drawings, but the present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of this application, ordinary technicians in this field can also make many forms of implementation methods without departing from the purpose of this application and the scope of protection of the claims. These implementation methods are all within the protection of this application.

Claims

1. A method for requesting perception assistance data, wherein: include: The terminal sends a first message to the network side device, where the first message is used to request perception assistance data; The perception assistance data is used to assist the terminal in perception, and includes at least one of reference signal assistance data, perception calculation assistance data, and sensor assistance data.

2. The method according to claim 1, wherein The first message includes at least one of the following: The cell identity providing sensing assistance data; Perception auxiliary data types; A request indication of a valid area for sensing assistance data; A request indication of the validity period of the sensing assistance data; Perceive the target reference position; Segment information of the first message; Indication of request for periodic sensing assistance data.

3. The method according to claim 2, wherein: The cell identifier is determined by the terminal according to at least one of an area where a sensing target is located, an area where a sensing area is located, and a capability of the terminal.

4. The method according to claim 2 or 3, wherein: The first message further includes at least one of the following: the minimum bandwidth of the required reference signal; The maximum repetition period of the required reference signal; The minimum time domain length of the required reference signal; The minimum transmit power of the required reference signal; Minimum waveform quality of the required reference signal; Minimum number of ports required for reference signals; The maximum beamwidth of the required reference signal; The minimum number of different site transmit / receive points (TRPs) that transmit the required reference signal.

5. The method according to claim 2 or 3, wherein: The first message further includes at least one of the following: A reference signal identifier, the reference signal identifier comprising: at least one of a reference signal type identifier and a configuration identifier; a request indication of a departure angle of a reference signal; a request indication of the angle of arrival of a reference signal; a request indication of a reference signal beam; A request indication for a quasi-co-located QCL of a reference signal.

6. The method according to any one of claims 2 to 5, wherein: The first message further includes at least one of the following: Send a request for the location information of the TRP of the perception signal; Send a request indication for time synchronization information between the reference TRP of the perception signal and the neighboring TPR; The TRP that sends the perception signal sends a request indication for timing error group information; Send a request indication of the timing deviation between the TRP of the perception signal and the terminal; Send a request indication of the clock frequency deviation between the TRP of the sensing signal and the terminal; The TRP that sends the perception signal sends a request indication of clock accuracy; The TRP that sends the sensing signal sends a request indication for clock deviation group information; Request indication for line-of-sight-non-line-of-sight (LOS-NLOS) assistance information; The perception signal includes at least one of a reference signal and a downlink data signal.

7. The method according to any one of claims 2 to 6, wherein: The first message further includes at least one of the following: Request indication for wireless local area network WLAN information; Bluetooth information request indication; Indicates a request for camera information.

8. The method according to any one of claims 1 to 7, wherein: After the terminal sends the first message to the network side device, the further step includes: The terminal receives a second message sent by the network side device, where the second message is used to provide the perception assistance data, or the terminal receives a third message sent by the network side device, where the third message is used to reject the request for the perception assistance data.

9. The method according to claim 8, wherein The second message includes at least one of the following: Segment information of the second message; indication of periodic sensing assistance data; Perceive the effective area of ​​auxiliary data; The validity period of the perception assistance data.

10. The method according to any one of claims 1 to 9, wherein: The perception assistance data includes reference signal assistance data, and the reference signal assistance data includes at least one of the following: Frequency layer information of the reference signal; A list of reference signal information for each TRP of each reference signal's frequency layer.

11. The method according to claim 10, wherein: The frequency layer information includes at least one of the following: Waveform of the reference signal; subcarrier spacing of the reference signal; Guard interval of reference signal; The bandwidth of the reference signal; the burst duration of the reference signal; The time domain interval of the reference signal; The frequency starting position of the reference signal; point-A of the reference signal; The inter-group spacing of the reference signal; Cyclic prefix of the reference signal.

12. The method according to claim 10, wherein: The reference signal information of each TRP includes at least one of the following: Reference signal identification; The cell identifier of the TRP; Refer to the cell ID where the TRP is located; The time offset between SFN0 timeslot 0 of the TRP and SFN0 timeslot 0 of the reference TRP; a reference signal time difference measured between the TRP and a reference TRP; The expected angle of arrival AoA or angle of departure AoD of the terminal position; QCL information of the reference signal; Beam information of the reference signal; transmit power of the reference signal; Transmitting port information of the reference signal; Signal format of the reference signal; Time resources of reference signals; Frequency resources of reference signals.

13. The method according to claim 12, wherein: The beam information of the reference signal includes at least one of the following: Reference signal identifier containing beam information; the azimuth of the TRP; the downtilt angle of the TRP; the tilt angle of the TRP; Beam information of each reference signal resource on the TRP.

14. The method according to any one of claims 1 to 9, wherein: The perceptual computing auxiliary data includes at least one of the following: The location coordinates of the antenna reference point of the TRP that sends the sensing signal; Beam information of the reference signal; Refer to the cell ID where the TRP is located; Time synchronization information between a reference TRP for sending perception signals and the TRP; The TRP that sends the perception signal sends timing error group information; Timing deviation between the TRP that sends the sensing signal and the terminal; The clock frequency deviation between the TRP that sends the sensing signal and the terminal; TRP sending clock accuracy for sending perception signals; The TRP that sends the sensing signal sends the clock deviation group information; LOS-NLOS assistance information.

15. The method according to claim 6 or 14, wherein: The perception assistance data provided by the network-side device includes a perception signal resource, and the LOS-NLOS assistance information includes at least one of the following: A first value, where the first value is a value corresponding to an expected probability of an LOS transmission path of a reference signal corresponding to the sensing signal resource from the TRP to the terminal; a second value, where the second value is a value corresponding to an expected probability of an LOS transmission path of the perception signal corresponding to the perception signal resource from the TRP to the perception target; or The perception assistance data provided by the network side device includes multiple perception signal resources, and the LOS-NLOS assistance information includes at least one of the following: a third value, where the third value represents a total expected probability of an LOS transmission path of reference signals corresponding to all the sensing signal resources from the TRP to the terminal; a fourth numerical list, where the fourth numerical value represents an expected probability of an LOS transmission path of the perception signal corresponding to each of the perception signal resources from the TRP to the terminal; a fifth value and an indication of a sensing signal resource corresponding to the fifth value, wherein the fifth value represents a maximum value among expected possibilities of LOS transmission paths of the sensing signals corresponding to all the sensing signal resources from the TRP to the terminal; a sixth value, where the sixth value represents a total expected probability of an LOS transmission path of the sensing signals corresponding to all the sensing signal resources from the TRP to the sensing target; a seventh numerical list, where the seventh numerical value represents an expected probability of an LOS transmission path of the sensing signal corresponding to each of the sensing signal resources from the TRP to the sensing target; An eighth value and a perception signal resource indication corresponding to the eighth value, wherein the eighth value represents a maximum value among expected possibilities of LOS transmission paths of the perception signals corresponding to all the perception signal resources from the TRP to the perception target.

16. The method according to any one of claims 1 to 15, wherein: The sensor auxiliary data includes at least one of the following: WLAN information; Bluetooth information; Camera information.

17. A method for transmitting perception assistance data, wherein: include: The network-side device receives a first message sent by the terminal, where the first message is used to request perception assistance data, where the perception assistance data is used to assist the terminal in perception, including at least one of reference signal assistance data, perception calculation assistance data, and sensor assistance data; The network-side device sends a second message to the terminal based on the first message, where the second message is used to provide the perception assistance data, or sends a third message to the terminal, where the third message is used to reject the request for the perception assistance data.

18. The method according to claim 17, wherein The first message includes at least one of the following: providing a cell identifier for the sensing assistance data; Perception auxiliary data types; A request indication of a valid area for sensing assistance data; A request indication of the validity period of the sensing assistance data; Perceive the target reference position; Segment information of the first message; Indication of request for periodic sensing assistance data.

19. The method according to claim 18, wherein The first message further includes at least one of the following: the minimum bandwidth of the required reference signal; The maximum repetition period of the required reference signal; The minimum time domain length of the required reference signal; The minimum transmit power of the required reference signal; Minimum waveform quality of the required reference signal; Minimum number of ports required for reference signals; The maximum beamwidth of the required reference signal; The minimum number of different sites TRP that transmit the required reference signal.

20. The method according to claim 18, wherein The first message further includes at least one of the following: A reference signal identifier, the reference signal identifier comprising: at least one of a reference signal type identifier and a configuration identifier; a request indication of a departure angle of a reference signal; a request indication of the angle of arrival of a reference signal; a request indication of a reference signal beam; A request indication for a quasi-co-located QCL of a reference signal.

21. The method according to any one of claims 18 to 20, wherein: The first message further includes at least one of the following: Send a request for the location information of the TRP of the perception signal; Send a request indication for time synchronization information between the reference TRP of the perception signal and the neighboring TPR; The TRP that sends the perception signal sends a request indication for timing error group information; Send a request indication of the timing deviation between the TRP of the perception signal and the terminal; Send a request indication of the clock frequency deviation between the TRP of the sensing signal and the terminal; The TRP that sends the perception signal sends a request indication of clock accuracy; The TRP that sends the sensing signal sends a request indication for clock deviation group information; Request indication for LOS-NLOS assistance information; The perception signal includes at least one of a reference signal and a downlink data signal.

22. The method according to any one of claims 18 to 21, wherein: The first message further includes at least one of the following: WLAN information request indication; Bluetooth information request indication; Indicates a request for camera information.

23. The method according to claim 17, wherein The second message includes at least one of the following: Segment information of the second message; indication of periodic sensing assistance data; Perceive the effective area of ​​auxiliary data; The validity period of the perception assistance data.

24. The method according to any one of claims 17 to 23, wherein: The perception assistance data includes reference signal assistance data, and the reference signal assistance data includes at least one of the following: Frequency layer information of the reference signal; A list of reference signal information for each TRP of each of the frequency layers.

25. The method according to any one of claims 17 to 23, wherein The perception assistance data includes perception computing assistance data, and the perception computing assistance data includes at least one of the following: The location coordinates of the antenna reference point of the TRP that sends the sensing signal; Beam information of the reference signal; Refer to the cell ID where the TRP is located; Time synchronization information between a reference TRP for sending perception signals and the TRP; The TRP that sends the perception signal sends timing error group information; Timing deviation between the TRP that sends the sensing signal and the terminal; The clock frequency deviation between the TRP that sends the sensing signal and the terminal; TRP sending clock accuracy for sending perception signals; The TRP that sends the sensing signal sends the clock deviation group information; LOS-NLOS assistance information.

26. The method according to any one of claims 17 to 23, wherein The perception assistance data includes sensor assistance data, and the sensor assistance data includes at least one of the following: WLAN information; Bluetooth information; Camera information.

27. A device for requesting perception assistance data, wherein: include: The sending module is used to send a first message to the network side device, where the first message is used to request perception auxiliary data, and the perception auxiliary data is used to assist the terminal in perception, including at least one of reference signal auxiliary data, perception calculation auxiliary data, and sensor auxiliary data.

28. The apparatus according to claim 27, wherein The first message includes at least one of the following: The cell identity providing sensing assistance data; Perception auxiliary data types; A request indication of a valid area for sensing assistance data; A request indication of the validity period of the sensing assistance data; Perceive the target reference position; Segment information of the first message; Indication of request for periodic sensing assistance data.

29. The apparatus according to claim 28, wherein The first message further includes at least one of the following: the minimum bandwidth of the required reference signal; The maximum repetition period of the required reference signal; The minimum time domain length of the required reference signal; The minimum transmit power of the required reference signal; Minimum waveform quality of the required reference signal; Minimum number of ports required for reference signals; The maximum beamwidth of the required reference signal; The minimum number of different site transmit / receive points (TRPs) that transmit the required reference signal.

30. The device according to claim 28 or 29, wherein The first message further includes at least one of the following: A reference signal identifier, the reference signal identifier comprising: at least one of a reference signal type identifier and a configuration identifier; a request indication of a departure angle of a reference signal; a request indication of the angle of arrival of a reference signal; a request indication of a reference signal beam; A request indication for a quasi-co-located QCL of a reference signal.

31. The device according to any one of claims 28 to 30, wherein The first message further includes at least one of the following: Send a request for the location information of the TRP of the perception signal; Send a request indication for time synchronization information between the reference TRP of the perception signal and the neighboring TPR; The TRP that sends the perception signal sends a request indication for timing error group information; Send a request indication of the timing deviation between the TRP of the perception signal and the terminal; Send a request indication of the clock frequency deviation between the TRP of the sensing signal and the terminal; The TRP that sends the perception signal sends a request indication of clock accuracy; The TRP that sends the sensing signal sends a request indication for clock deviation group information; Request indication for LOS-NLOS assistance information; The perception signal includes at least one of a reference signal and a downlink data signal.

32. The device according to any one of claims 28 to 31, wherein The first message further includes at least one of the following: WLAN information request indication; Bluetooth information request indication; Indicates a request for camera information.

33. A device for transmitting perception assistance data, wherein: include: a receiving module, configured to receive a first message sent by a terminal, where the first message is used to request perception assistance data, where the perception assistance data is used to assist the terminal in perception and includes at least one of reference signal assistance data, perception calculation assistance data, and sensor assistance data; A sending module is used to send a second message to the terminal according to the first message, where the second message is used to provide the perception assistance data, or to send a third message to the terminal, where the third message is used to reject the request for the perception assistance data.

34. The apparatus according to claim 33, wherein The first message includes at least one of the following: providing a cell identifier for the sensing assistance data; Perception auxiliary data types; A request indication of a valid area for sensing assistance data; A request indication of the validity period of the sensing assistance data; Perceive the target reference position; Segment information of the first message; Indication of request for periodic sensing assistance data.

35. The apparatus of claim 34, wherein: The first message further includes at least one of the following: the minimum bandwidth of the required reference signal; The maximum repetition period of the required reference signal; The minimum time domain length of the required reference signal; The minimum transmit power of the required reference signal; Minimum waveform quality of the required reference signal; Minimum number of ports required for reference signals; The maximum beamwidth of the required reference signal; The minimum number of different sites TRP that transmit the required reference signal.

36. The device according to claim 34 or 34, wherein The first message further includes at least one of the following: A reference signal identifier, the reference signal identifier comprising: at least one of a reference signal type identifier and a configuration identifier; a request indication of a departure angle of a reference signal; a request indication of the angle of arrival of a reference signal; a request indication of a reference signal beam; A request indication for a quasi-co-located QCL of a reference signal.

37. The device according to any one of claims 34 to 36, wherein The first message further includes at least one of the following: Send a request for the location information of the TRP of the perception signal; Send a request indication for time synchronization information between the reference TRP of the perception signal and the neighboring TPR; The TRP that sends the perception signal sends a request indication for timing error group information; Send a request indication of the timing deviation between the TRP of the perception signal and the terminal; Send a request indication of the clock frequency deviation between the TRP of the sensing signal and the terminal; The TRP that sends the perception signal sends a request indication of clock accuracy; The TRP that sends the sensing signal sends a request indication for clock deviation group information; Request indication for LOS-NLOS assistance information; The perception signal includes at least one of a reference signal and a downlink data signal.

38. The apparatus according to any one of claims 34 to 37, wherein The first message further includes at least one of the following: WLAN information request indication; Bluetooth information request indication; Indicates a request for camera information.

39. The device according to any one of claims 33 to 37, wherein The second message includes at least one of the following: Segment information of the second message; indication of periodic sensing assistance data; Perceive the effective area of ​​auxiliary data; The validity period of the perception assistance data.

40. A terminal, wherein: The method comprises a processor and a memory, wherein the memory stores a program or instruction that can be run on the processor, and when the program or instruction is executed by the processor, the steps of the method for transmitting perception assistance data according to any one of claims 1 to 16 are implemented.

41. A network side device, wherein: The method comprises a processor and a memory, wherein the memory stores a program or instruction that can be run on the processor, and when the program or instruction is executed by the processor, the steps of the method for transmitting perception assistance data according to any one of claims 17 to 32 are implemented.

42. A readable storage medium, wherein: The readable storage medium stores a program or instruction, and when the program or instruction is executed by the processor, it implements the method for transmitting perception-assisted data according to any one of claims 1 to 16, or implements the steps of the method for transmitting perception-assisted data according to any one of claims 17 to 32.

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