WO2025092697A1 - Signal transmission method, signal measurement method, apparatus, and device - Google Patents

Abstract

The present application belongs to the technical field of communication, and discloses a signal transmission method, a signal measurement method, an apparatus, and a device. The signal transmission method in embodiments of the present application comprises: a first device measures a first signal sent by a second device, to obtain time-related information of the first signal; the first device performs a first operation, the first operation comprising: sending the time-related information to the second device or a third device, and sending a measurement signal to the second device; or, sending a measurement signal to the second device and calculating at least one of a perception result and a ranging result on the basis of the time-related information and a measurement result, the measurement result comprising a measurement result obtained by the second device performing ranging on the measurement signal, wherein the measurement signal is used for ranging.

Description

Signal transmission method, signal measurement method, device and equipment

CROSS-REFERENCE TO RELATED APPLICATIONS

This application claims priority to Chinese Patent Application No. 202311420775.X filed in China on October 30, 2023, the entire contents of which are incorporated herein by reference.

Technical Field

The present application belongs to the field of communication technology, and specifically relates to a signal transmission method, a signal measurement method, a device and equipment.

Background Art

Some communication systems support multiple measurements. In some measurement scenarios, the device distance may be unknown. In some related technologies, when the device distance is unknown, measurement cannot be performed, resulting in poor device measurement performance.

Summary of the invention

The embodiments of the present application provide a signal transmission method, a signal measurement method, an apparatus and a device, which can solve the problem of poor measurement performance of the device.

In a first aspect, a signal transmission method is provided, comprising:

The first device measures the first signal sent by the second device to obtain time-related information of the first signal;

The first device performs a first operation, where the first operation includes:

sending the time-related information to the second device or the third device, and sending a measurement signal to the second device; or,

A measurement signal is sent to the second device, and at least one of a perception result and a ranging result is calculated based on the time-related information and the measurement result, wherein the measurement result includes a measurement result obtained by the second device performing ranging on the measurement signal, wherein the measurement signal is used for ranging.

In a second aspect, a signal transmission method is provided, comprising:

The second device sends a first signal to the first device;

The second device sends a measurement signal to the first device to perform ranging and obtain a measurement result;

The second device performs a second operation, where the second operation includes:

Calculate at least one of a perception result and a ranging result based on time-related information and the measurement result, where the time-related information is time-related information obtained by the first device measuring the first signal; or

Send the measurement result to the first device or the third device.

In a third aspect, a signal measurement method is provided, comprising:

The third device receives the time related information sent by the first device, where the time related information is sent to the second device. time-related information obtained by measuring the first signal;

The third device receives a measurement result sent by the second device, where the measurement result includes a measurement result obtained by performing ranging on the measurement signal sent by the first device;

The third device calculates at least one of a sensing result and a ranging result based on the time-related information and the measurement result.

In a fourth aspect, a signal transmission device is provided, comprising:

A measuring module, configured to measure a first signal sent by a second device to obtain time-related information of the first signal;

An execution module is used to execute a first operation, where the first operation includes:

sending the time-related information to the second device or the third device, and sending a measurement signal to the second device; or,

A measurement signal is sent to the second device, and at least one of a perception result and a ranging result is calculated based on the time-related information and the measurement result, wherein the measurement result includes a measurement result obtained by the second device performing ranging on the measurement signal, wherein the measurement signal is used for ranging.

In a fifth aspect, a signal transmission device is provided, comprising:

A first sending module, configured to send a first signal to a first device;

A measuring module, configured to send a measurement signal to the first device to perform distance measurement and obtain a measurement result;

An execution module is used to execute a second operation, where the second operation includes:

Calculate at least one of a perception result and a ranging result based on time-related information and the measurement result, where the time-related information is time-related information obtained by the first device measuring the first signal; or

Send the measurement result to the first device or the third device.

In a sixth aspect, a signal measuring device is provided, comprising:

A first receiving module is used to receive time related information sent by the first device, where the time related information is time related information obtained by measuring a first signal sent by the second device;

A second receiving module, configured to receive a measurement result sent by the second device, wherein the measurement result includes a measurement result obtained by performing ranging on a measurement signal sent by the first device;

A calculation module is used to calculate at least one of a perception result and a ranging result based on the time-related information and the measurement result.

In the seventh aspect, a device is provided, which terminal includes a processor and a memory, and 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 signal transmission method on the first device side provided in the embodiment of the present application are implemented, or when the program or instruction is executed by the processor, the steps of the signal transmission method on the second device side provided in the embodiment of the present application are implemented, or when the program or instruction is executed by the processor, the steps of the signal measurement method provided in the embodiment of the present application are implemented.

In an eighth aspect, a device is provided, including a processor and a communication interface, wherein the communication interface is used to measure a first signal sent by a second device to obtain time-related information of the first signal; the processor or the communication interface is used to measure a first signal sent by a second device to obtain time-related information of the first signal; The communication interface is used to perform a first operation, wherein the first operation includes: sending the time-related information to the second device or the third device, and sending a measurement signal to the second device; or, sending a measurement signal to the second device, and calculating at least one of a perception result and a ranging result based on the time-related information and the measurement result, wherein the measurement result includes a measurement result obtained by the second device performing ranging on the measurement signal, wherein the measurement signal is used for ranging.

In a ninth aspect, a device is provided, comprising a processor and a communication interface, wherein the communication interface is used to send a first signal to a first device; a measurement module is used to measure the distance of the measurement signal sent to the first device to obtain a measurement result; the processor or the communication interface is used to perform a second operation, and the second operation includes: calculating at least one of a perception result and a ranging result based on time-related information and the measurement result, the time-related information being the time-related information obtained by the first device measuring the first signal; or sending the measurement result to the first device or a third device.

In the tenth aspect, a device is provided, comprising a processor and a communication interface, wherein the communication interface is used to receive time-related information sent by a first device, and the time-related information is time-related information obtained by measuring a first signal sent by a second device; receive a measurement result sent by the second device, and the measurement result includes a measurement result obtained by ranging the measurement signal sent by the first device; and the processor is used to calculate at least one of a perception result and a ranging result based on the time-related information and the measurement result.

In the eleventh 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 signal transmission method on the first device side provided in the embodiment of the present application are implemented, or the steps of the signal transmission method on the second device side provided in the embodiment of the present application are implemented, or the steps of the signal measurement method provided in the embodiment of the present application are implemented.

In the twelfth aspect, a wireless communication system is provided, comprising: a first device and a second device, or comprising a first device, a second device and a third device, wherein the first device can be used to execute the steps of the signal transmission method on the first device side provided in the embodiment of the present application, the second device can be used to execute the steps of the signal transmission method on the second device side provided in the embodiment of the present application, and the third device can be used to execute the steps of the signal measurement method provided in the embodiment of the present application.

In the thirteenth aspect, a chip is provided, which includes a processor and a communication interface, wherein the communication interface is coupled to the processor, and the processor is used to run a program or instruction to implement the signal transmission method on the first device side as provided in the embodiment of the present application, or to implement the signal transmission method on the second device side as provided in the embodiment of the present application, or to implement the signal measurement method as provided in the embodiment of the present application.

In the fourteenth aspect, a computer program/program product is provided, which is stored in a storage medium, and the program/program product is executed by at least one processor to implement the steps of the signal transmission method on the first device side provided in the embodiment of the present application, or the program/program product is executed by at least one processor to implement the steps of the signal transmission method on the second device side provided in the embodiment of the present application, or the program/program product is executed by at least one processor to implement the steps of the signal measurement method provided in the embodiment of the present application.

In the embodiment of the present application, the first device measures the first signal sent by the second device to obtain the first signal The first device performs a first operation, the first operation including: sending the time-related information to the second device or the third device, and sending a measurement signal to the second device; or sending a measurement signal to the second device, and calculating at least one of a perception result and a ranging result based on the time-related information and the measurement result, the measurement result including the measurement result obtained by the second device ranging the measurement signal, wherein the measurement signal is used for ranging. In this way, the first device sends time-related information to the second device or the third device, the second device or the third device calculates at least one of a perception result and a ranging result based on the time-related information and the measurement result, or the first device calculates at least one of a perception result and a ranging result based on the time-related information and the measurement result of the second device, so that when the distance between the devices is unknown, at least one of a perception result and a ranging result can be calculated based on the measurement results of the two devices to improve the device measurement performance.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG1 is a block diagram of a wireless communication system to which an embodiment of the present application can be applied;

FIG2 is a schematic diagram of a scenario of perception measurement provided by an embodiment of the present application;

FIG3 is a flow chart of a signal transmission method provided in an embodiment of the present application;

FIG4 is a schematic diagram of a scenario provided in an embodiment of the present application;

FIG5 is a flow chart of another signal transmission method provided in an embodiment of the present application;

FIG6 is a flow chart of a signal measurement method provided in an embodiment of the present application;

FIG7 is a structural diagram of a signal transmission device provided in an embodiment of the present application;

FIG8 is a structural diagram of another signal transmission device provided in an embodiment of the present application;

FIG9 is a structural diagram of a signal measurement device provided in an embodiment of the present application;

FIG10 is a structural diagram of a communication device provided in an embodiment of the present application;

FIG11 is a structural diagram of a device provided in an embodiment of the present application;

FIG12 is a structural diagram of another device provided in an embodiment of the present application;

FIG. 13 is a structural diagram of another device provided in an embodiment of the present application.

DETAILED DESCRIPTION

The following will be combined with the drawings in the embodiments of the present application to clearly describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field belong to the scope of protection of this application.

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 the number of objects is not limited. For example, the first object can be one or more. In addition, "or" in this application means at least one of the connected objects. For example, "A or B" covers three schemes, namely, Scheme 1: including A but not B; Scheme 2: including B but not A; Scheme 3: including both A and B. The character "/" generally indicates the front and back. The relationship between associated objects is an "or" relationship.

The term "indication" in this application can be 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, operations to be performed, or request results in the sent indication; an indirect indication can be understood as the receiver determining the corresponding information according to the indication sent by the sender, or making a judgment and determining the operation to be performed or the request result according to the judgment result.

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 above-mentioned systems and radio technologies as well as other systems and radio technologies. The following description describes a New Radio (NR) system for example purposes, and NR terms are used in most of the following descriptions, but these technologies can also be applied to systems other than NR systems, such as ^6th Generation (6G) communication systems.

FIG1 shows a block diagram of a wireless communication system applicable to the embodiment of the present application. The wireless communication system includes a terminal 11 and a network side device 12 . Among them, the terminal 11 can 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 (Ultra-mobile Personal Computer, UMPC), a mobile Internet device (Mobile Internet Device, MID), an augmented reality (Augmented Reality, AR), a virtual reality (Virtual Reality, VR) device, a robot, a wearable device (Wearable Device), a flight vehicle (flight vehicle), a vehicle user equipment (VUE), a shipborne equipment, a pedestrian terminal (Pedestrian User Equipment, PUE), a smart home (home appliances with wireless communication functions, such as refrigerators, televisions, washing machines or furniture, etc.), a game console, a personal computer (Personal Computer, PC), a teller machine or a self-service machine and 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 referred to as a 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 may be referred to as a node B (NB), an evolved node B (eNB), the next generation node B (gNB), a new radio node B (NR Node B), an access point, a relay 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, 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 embodiments of the present application, only the base station in the NR system is taken as an example for introduction, and the specific type of the base station is not limited.

The core network equipment may include but is not limited to at least one of the following: core network nodes, core network functions, mobility management entity (Mobility Management Entity, MME), access mobility management function (Access and Mobility Management Function, AMF), session management function (Session Management Function, SMF), user plane function (User Plane Function, UPF), policy control function (Policy Control Function, PCF), policy and charging rules function unit (Policy and Charging Rules Function, PCRF), edge application service discovery function (Edge Application Server Discovery ... user plane function (User Plane Function, UPF), user plane function (User Plane Function, UPF), user plane function (User Plane Function, UPF), user plane function (User Plane Function, UPF), user plane function (User Plane Function, UPF), user plane function (User Plane Function, UPF), user plane function (User Plane Function, UPF), user plane function (User Plane Function, UPF), user plane function (User Plane Function, UPF), user plane function (User Plane Function, UPF), user ion, EASDF), Unified Data Management (UDM), Unified Data Repository (UDR), Home Subscriber Server (HSS), Centralized network configuration (CNC), Network Repository Function (NRF), Network Exposure Function (NEF), Local NEF (or L-NEF), Binding Support Function (BSF), Application Function (AF), etc. It should be noted that in the embodiments of the present application, only the core network device in the NR system is taken as an example for introduction, and the specific type of the core network device is not limited.

In some embodiments, the network side devices and terminals may have perception capabilities in addition to communication capabilities. Perception capabilities refer to one or more devices with perception capabilities that can sense the direction, distance, speed and other information of target objects through the transmission and reception of wireless signals, or detect, track, identify, image and the like the target objects, events or environments. Some perception functions and application scenarios are shown in Table 1:

Table 1

It should be noted that the perception category shown in Table 1 above is only an example, and the category of perception measurement is not limited in the embodiments of the present application.

In addition, the embodiments of the present application can be applied to the communication and perception integration scenario, where communication and perception integration refers to the integrated design of communication and perception functions through spectrum sharing and hardware sharing in the same system. While transmitting information, the system can perceive information such as direction, distance, speed, and detect, track, and identify target devices or events. The communication system and the perception system complement each other to achieve overall performance improvement and bring a better service experience.

For example: the integration of communication and radar is a typical communication-perception integration (communication-perception fusion) application, and the integration of communication and radar systems can bring many advantages, such as cost savings, size reduction, power consumption reduction, improved spectrum efficiency, reduced mutual interference, etc., thereby improving the overall performance of the system.

In the embodiment of the present application, according to the difference between the sensing signal sending node and the receiving node, there may be included but not limited to the six sensing links shown in FIG2. It should be noted that each sensing link in FIG2 is illustrated by an example of a sending node and a receiving node. In the actual system, different sensing links can be selected according to different sensing needs. There may be one or more sending nodes and receiving nodes for each sensing link, and the actual sensing system may include a variety of different sensing links. In addition, the sensing targets in FIG2 take people and cars as examples, and it is assumed that people and cars do not carry or install signal receiving/transmitting equipment, and the sensing targets in the actual scene will be richer.

Sensing link 1: The base station sends and receives sensing signals on its own. In this mode, the base station sends sensing signals and obtains sensing results by receiving the echo of the sensing signals.

Sensing link 2: air interface sensing between base stations. In this mode, base station 2 receives the sensing signal sent by base station 1 and obtains the sensing result.

Perception link 3: Uplink air interface perception. In this mode, the base station receives the perception signal sent by the terminal and obtains the perception result.

Perception link 4: Downlink air interface perception. In this mode, the terminal receives the perception signal sent by the base station and obtains the perception result.

Perception link 5: Terminal self-transmitting and self-receiving perception. In this mode, the terminal sends a perception signal and obtains the perception result by receiving the echo of the perception signal.

Perception link 6: Sidelink perception between terminals. For example, terminal 2 receives a perception signal sent by terminal 1 to obtain a perception result, or terminal 1 receives a perception signal sent by terminal 2 to obtain a perception result.

In some embodiments, the signaling transmission between the wireless access network equipment and the terminal, or between different terminals may be through Radio Resource Control (RRC) signaling or Media Access Control Control Element (MAC CE) or Layer 1 signaling or other newly defined perception signaling; the signaling transmission between the perception network function and the terminal may be through Non-Access-Stratum (NAS) signaling (forwarded via AMF) or through RRC signaling or MAC CE or Layer 1 signaling or other newly defined perception signaling; the interaction between the perception network function and the base station may be forwarded to the wireless access network through the N2 interface by AMF; or the core network perception network function sends it to UPF, and UPF sends it to the wireless access network through the N3 interface; or it is sent to the wireless access network (such as a base station) through a newly defined interface; the signaling transmission between wireless access network devices may be through the Xn interface.

In the embodiment of the present application, the sensing network function may also be called a sensing network element or a sensing management function (Sensing Management Function, Sensing MF), which may be located on the RAN side or the core network side, and refers to a network node in the core network or RAN responsible for at least one function such as sensing request processing, sensing resource scheduling, sensing information interaction, and sensing data processing, and may be based on the AMF or location management function (Location Management Function, LMF) upgrade, or other network nodes or newly defined network nodes. Specifically, the functional characteristics of the perception network function/perception network element may include at least one of the following:

Target information is interacted with a wireless signal sending device or a wireless signal measuring device (including a target terminal or a serving base station of the target terminal or a base station associated with a target area), wherein the target information includes a perception processing request, a perception capability, perception auxiliary data, a perception measurement quantity type, a perception resource configuration information, etc., so as to obtain the value of the target perception result or the perception measurement quantity (uplink measurement quantity or downlink measurement quantity) sent by the wireless signal measuring device; wherein the wireless signal may also be referred to as a perception signal.

The perception method to be used is determined based on factors such as the type of perception service, perception service consumer information, required perception service quality (QoS) requirement information, the perception capability of the wireless signal sending device, the perception capability of the wireless signal measuring device, and the like. The perception method may include: wireless access network device A sends and wireless access network device B receives, or the wireless access network device sends and the terminal receives, or the wireless access network device A sends and receives by itself, or the terminal sends and the wireless access network device receives, or the terminal sends and receives by itself, or terminal A sends and terminal B receives, etc.

The perception device serving the perception service is determined based on factors such as the type of perception service, information about the perception service consumer, required perception QoS requirement information, the perception capability of the wireless signal sending device, and the perception capability of the wireless signal measuring device, wherein the perception device includes a wireless signal sending device or a wireless signal measuring device.

Manage the overall coordination and scheduling of resources required for sensing services, such as configuring sensing resources of wireless access network equipment or terminals accordingly;

The values of the perceived measurement quantities are processed or calculated to obtain the perceived results. Furthermore, the perceived results are verified, and the perceived accuracy is estimated.

In the following, in combination with the accompanying drawings, a signal transmission method, a signal measurement method, an apparatus and a device provided in an embodiment of the present application are described in detail through some embodiments and their application scenarios.

Please refer to FIG. 3 , which is a flow chart of a signal transmission method provided in an embodiment of the present application. As shown in FIG. 3 , the method includes the following steps:

Step 301: A first device measures a first signal sent by a second device to obtain time-related information of the first signal.

Among them, the above-mentioned first device can be a terminal or a network side device, and the above-mentioned second device can be a terminal or a network side device. For example, the first device and the second device can both be network side devices, or both are terminals, or one of them is a network side device and the other is a terminal.

The first signal may be a signal for distance measurement, and the time-related information may be time information related to distance measurement, or time information used to calculate distance.

Step 302: The first device performs a first operation, where the first operation includes:

sending the time-related information to the second device or the third device, and sending a measurement signal to the second device; or,

Sending a measurement signal to the second device, and calculating at least one of a perception result and a ranging result based on the time-related information and the measurement result, wherein the measurement result includes the second device performing ranging on the measurement signal. The measurement result of the present invention is as follows, wherein the measurement signal is used for ranging.

The above-mentioned measurement signal may be one or more signals, such as the above-mentioned measurement signal only includes a signal used for ranging, or the above-mentioned measurement signal includes a perception signal and a ranging signal, which are used for perception measurement and ranging respectively, or the signal included in the above-mentioned measurement signal is used for perception in addition to ranging, that is, the signal is a multiplexed signal of the perception signal and the ranging signal, and perception measurement and ranging are realized through one signal to save transmission overhead.

The above-mentioned perception measurement may be a perception measurement of a perception target, and the above-mentioned distance measurement may be a distance measurement between the first device and the second device, or a distance between the first device or the second device and the perception target.

The above measurement result is a measurement result obtained by the above second device performing at least one of perception measurement and ranging on the above measurement signal.

The above-mentioned perception results may be the perception results of position, distance, speed, tracking, etc.

The above-mentioned ranging result may be the ranging between the first device and the second device, or the ranging-related information between the first device and the second device, such as the round-trip time (RTT) information between the first device and the second device.

The third device mentioned above may be a network side device or a terminal.

By sending the time related information to the second device or the third device, the second device or the third device can calculate at least one of the perception result and the ranging result based on the time related information and the measurement result. The measurement result is sent by the second device to the third device.

The calculating of at least one of the perception result and the ranging result based on the time-related information and the measurement result may include:

Calculate the perception result based on the time related information and the measurement result; or,

Calculate the distance measurement result based on the time related information and the measurement result; or,

The sensing result and the ranging result are calculated based on the time related information and the measurement result.

Among them, the above-mentioned perception result calculated based on time-related information and measurement results can be calculated according to the correspondence between time-related information, measurement results and perception results, or the above-mentioned perception result calculated based on time-related information and measurement results can be calculated according to the position of the first device, as well as the above-mentioned time-related information and measurement results, or the perception result is calculated based on the time-related information, measurement results and the above-mentioned ranging results.

The calculating of the ranging result based on the time-related information and the measurement result may be calculating the ranging result according to the corresponding relationship between the time-related information, the measurement result and the ranging result.

It should be noted that the embodiments of the present application do not limit the calculation method of the perception results and the ranging results. For example, the perception measurement and ranging results can be calculated using the calculation method defined by the protocol.

In the embodiment of the present application, the above steps can be used to send time-related information from the first device to the second device or the third device, and the second device or the third device calculates at least one of the perception result and the ranging result based on the time-related information and the measurement result, or the first device calculates at least one of the perception result and the ranging result based on the time-related information and the measurement result of the second device, so that when the distance between the devices is unknown, at least one of the perception result and the ranging result can be calculated based on the measurement results of the two devices to improve the measurement performance of the device. In addition, by calculating the perception result based on the measurement results of the two devices, it is possible to perform perception measurement on passive targets, thereby improving perception performance, and can also Realize the multiplexing of the ranging signal for sensing measurement to save the signal transmission overhead.

In addition, when calculating the perception result and the ranging result, since they are calculated based on a common measurement signal, it can be ensured that the perception result and the ranging result are matched in real time, thereby improving the perception performance and the ranging performance.

As an optional implementation manner, the perception result includes at least one of the following:

Perceive the location information of the target and the distance information associated with the target;

The ranging result includes at least one of the following:

RTT information, and distance information between the first device and the second device.

Among them, the location information of the above-mentioned perception target can be the specific location coordinates of the perception target, or relative location coordinates, such as the location coordinates relative to the first device, or the location coordinates relative to the second device, or the location information of the above-mentioned perception target can be the location area of the perception target, etc.

The distance information associated with the above-mentioned perceived target may include at least one of the following:

sensing the distance between the target and the first device;

The distance from the sensing target to the second device;

The sum of the distance from the perception target to the first device and the distance from the perception target to the second device.

The above RTT information may be RTT information of a signal between the first device and the second device.

In the above implementation, it is possible to obtain the location information of the perception target, the distance information associated with the perception target, the RTT information, and the distance information between the first device and the second device, thereby improving the measurement performance.

An application scenario is shown in FIG4 . In the application scenario shown in FIG4 , one of the first device and the second device is a network side device, and the other is a terminal. The left side of FIG4 represents a two-dimensional space, and the right side of FIG4 represents a three-dimensional space. Wherein, _RT is the distance from the signal transmitting end (Tx) to the sensing target, _RR is the distance from the signal receiving end (Tx) to the sensing target, L is the baseline distance (i.e., the distance between the first device and the second device), _θT is the angle of the sensing target relative to the signal transmitting end, _θR ( _θR1 , _θR2 ) is the angle of the sensing target relative to the signal receiving end, and β is the dual base angle.

In the case where the above-mentioned sensing target is a passive sensing target, the distance and position coordinate calculation may include the following:

The time delay difference information Δτ between the reflected signal path of the sensing target and the line of sight (LOS) path is obtained based on the measurement of the received signal, and then the distance difference information _RT + _RR -L = c · Δτ is calculated, where _RT is the distance from the signal sending device (such as the first device) to the sensing target, _RR is the distance from the sensing target to the signal receiving device (such as the second device), and L is the distance between the first device and the second device (baseline distance). If the baseline distance L is known, the distance from the first device to the sensing target and the distance from the sensing target to the second device can be further calculated to obtain _RT + _RR .

For example, the distance between the perceived target and the second device can be obtained based on the arrival angle information θ _R (horizontal arrival angle information) obtained by measuring the received signal and the above distance difference information, which can be expressed as follows:

For another example, based on the distance R _R between the perception target and the second device and the arrival angle information θ _R , the coordinate information (x ₀ , y ₀ ) of the perception target relative to the local coordinate system of the second device can be calculated.

If three-dimensional space is considered, the distance between the perceived target and the first target can be obtained based on the arrival angle information θ _R1 (horizontal arrival angle information), the arrival angle information θ _R2 (vertical arrival angle information) obtained by measuring the received signal, and the above distance difference information. The distance between the two devices can be expressed as follows:

For another example, based on the distance R _R between the perception target and the second device and the arrival angle information θ _R1 and θ _R2 , the coordinate information (x ₀ , y ₀ , z ₀ ) of the perception target relative to the local coordinate system of the second device can be calculated.

In the above scenario, the sum of the distances _RT + _RR from the perception target to the first device and the second device, the distance _RT from the perception target to the first device, the distance _RR from the perception target to the second device, and the position coordinates of the perception target can be calculated based on the baseline distance L. In some implementations, the first device and the second device measure the baseline distance L through RTT, and simultaneously perform perception-related measurements such as perception target positioning or ranging. During the measurement process, the ranging signal can be multiplexed as a reference channel signal (such as a direct path signal) in the perception measurement.

It should be noted that FIG. 4 is only an example of a scenario, and the embodiments of the present application are not limited to specific application scenarios.

As an optional implementation manner, when the first operation includes calculating at least one of a perception result and a ranging result based on the time-related information and the measurement result, the method further includes:

The first device receives sending time information of the first signal sent by the second device.

The distance-related information between the first device and the second device can be simply and quickly calculated using the sending time information of the first signal and the time-related information of the first signal obtained by the measurement.

In some implementations, the time information of the first signal may not be received, for example, the first device and the second device schedule a time to send the first signal.

As an optional implementation manner, the time-related information includes:

The arrival time of the first signal.

The first device can directly calculate the distance between the first device and the second device through the arrival time of the above-mentioned first signal, and can calculate the perception result based on the distance, so that the perception result or the distance measurement result can be simply and quickly calculated through the arrival time of the above-mentioned first signal.

In some implementations, the time-related information is not limited to the arrival time of the first signal, for example, the time information of the first signal transmitted from the second device to the first device can also be used for distance calculation.

As an optional implementation, the measurement signal includes a second signal, and the second signal is used to measure the distance between the first device and the second device.

The distance between the first device and the second device may be referred to as a baseline distance.

After the distance between the first device and the second device is determined in this way, the passive target can be sensed or measured, for example, as shown in FIG. 4 , multiple distances or sensed results are obtained based on the distance between the first device and the second device.

Optionally, when the measurement signal includes only the second signal, the measurement signal is used for sensing measurement and ranging, and the second signal is a signal sent omnidirectionally, or the second signal is a signal sent using a wide beam; or,

In the case where the measurement signal further includes a third signal, the second signal is used for sensing measurement and ranging, the third signal is used for sensing measurement, the beam direction of the second signal is a direction pointing to the second device, and the beam direction of the third signal is a direction corresponding to the area to be sensed; or,

In the case where the measurement signal also includes a third signal and a fourth signal, the third signal is used for perception measurement, the fourth signal is used for perception measurement, the beam directions of the second signal and the third signal are directions pointing to the second device, and the beam direction of the fourth signal is the direction corresponding to the area to be perceived.

Among them, when the above-mentioned second signal is used for perception measurement and ranging, the ranging measurement signal can be multiplexed with the perception measurement signal, or the perception measurement signal can be multiplexed with the ranging signal. Specifically, the two measurements are implemented by one signal, thereby saving transmission overhead.

The above-mentioned area to be sensed is the area where the sensed target is located.

In the above implementation, since the beam direction of the second signal is the direction pointing to the second device, and the beam direction of the third signal is the direction corresponding to the area to be sensed, it is possible to send signals in different directions so that the perception measurement result is more accurate. The second device can measure the arrival time difference between the second signal and the third signal, and can also calculate the distance difference information (such as _RT + _RR -L) based on the arrival time difference, and calculate the angle information, such as the arrival angle of the second signal, the arrival angle of the third signal, and the difference between the arrival angles of the second signal and the third signal.

In the above implementation, since the measurement signal only includes the second signal, transmission overhead can be saved, and since the second signal is an omnidirectional signal transmitted using a wide beam, the second device can calculate the arrival time difference based on the second signal, such as the delay difference between the strongest path/first arrival path of the second signal and other signal paths, and for example: the delay difference between the strongest path/first arrival path of the first signal and at least one path among other signal paths whose strength exceeds a preset threshold, and distance difference information ( _RT + _RR -L) that can also be calculated based on the arrival time difference; and calculate angle information, such as the arrival angle of at least one signal path in the second signal, or the difference in arrival angles between two paths.

In the above implementation, since the measurement signal includes the second signal, the third signal and the fourth signal, the second device can calculate more usable information to further improve the reliability of the measurement. For example, the second device can calculate the arrival time difference corresponding to the third signal and the fourth signal, and the distance difference information ( _RT + _RR -L) that can be calculated based on the arrival time difference; and calculate angle information, such as the arrival angle of the third signal, the arrival angle of the fourth signal, and the difference between the arrival angles of the third signal and the fourth signal.

In some embodiments, when the measurement signal includes the second signal, the third signal, and the fourth signal, the second signal and the third signal may be sent using the same beam or the same spatial filter coefficient, thereby improving the correlation between the measurement results of the second signal and the third signal, which is beneficial to improving the accuracy of the final measurement result.

In some embodiments, at least one of the first signal, the second signal, the third signal, and the fourth signal is the following signal:

Communication reference signal, synchronization signal, perception signal or communication data signal.

Among them, the above-mentioned communication reference signal can be a channel state information reference signal (Channel State Information, Reference Signal, CSI-RS), a physical downlink shared channel (Physical downlink shared channel, PDSCH) demodulation reference signal (Demodulation Reference Signal, DMRS) or a positioning reference signal (Positioning Reference Signal, PRS), etc.

The above synchronization signal may be a primary synchronization signal (PSS) or a secondary synchronization signal (SSS), etc.

The above-mentioned perception signal can be a perception signal designed based on a Gold sequence or a ZC sequence, or a perception signal designed based on a Frequency Modulated Continuous Wave (FMCW), etc.

The above-mentioned communication data signal is a signal that carries communication data information.

The first signal, the second signal, the third signal and the fourth signal may be the same signal or different signals, and this is not limited.

In some embodiments, at least two of the second signal, the third signal, and the fourth signal are time-division multiplexed, frequency-division multiplexed, or code-division multiplexed.

In some embodiments, when the second signal is used only for ranging, the second signal is a subset of the third signal. For example, the transmission resource corresponding to the third signal includes multiple time domain symbols. The third signal on one of the time domain symbols can be used as the second signal, thereby realizing ranging multiplexing perception signal to save signal management overhead.

In some implementations, when the transmission resources of the first signal, the second signal, the third signal, and the fourth signal belong to the same frequency band, the timing advances (TA) corresponding to the first signal, the second signal, the third signal, and the fourth signal belong to the same timing advance group (TAG). Since the TAs corresponding to the first signal, the second signal, the third signal, and the fourth signal belong to the same TAG, the measurement performed through these signals can avoid the problem of inaccurate signal time, so as to improve the accuracy of the measurement.

As an optional implementation manner, when the first operation includes calculating at least one of a perception result and a ranging result based on the time-related information and the measurement result, the method further includes:

The first device receives the measurement result sent by the second device.

In some implementations, the above measurement result may also be received by the first device from a third device, such as sent by the second device to the third device, and the third device decides to send the measurement result to the first device.

As an optional implementation manner, the measurement result includes ranging related result information; or

The measurement results include: ranging related result information and perception measurement related result information.

In some implementations, the ranging related result information includes at least one of the following:

Arrival time information of the measurement signal, and time difference information between the arrival time of the measurement signal and the sending time of the first signal;

or,

The perception measurement related result information includes at least one of the following:

Delay information, distance information, angle information.

The arrival time information of the measurement signal is used to calculate the distance, that is, the distance-related information can be reflected by the arrival time information, so the distance measurement-related result information can include the arrival time information.

The time difference information between the arrival time of the above-mentioned measurement signal and the sending time of the first signal is used to calculate the distance, that is, the distance-related information can be reflected through the time difference information, so the above-mentioned distance measurement-related result information can include the time difference information.

Since the above measurement result includes at least one of the distance measurement related result information and the perception measurement related result information, the first device can calculate the above perception result or distance measurement result based on the measurement result, which is conducive to improving the perception. The accuracy of the known results or ranging results.

Optionally, the arrival time information of the measurement signal includes at least one of the following:

Delay information of the strongest path of the measurement signal;

Delay information of the first arrival path of the measurement signal;

The strength of the measured signal exceeds the delay information of the signal path of the first threshold.

The strongest path may be a signal path with the largest signal strength or receiving power.

The delay information of the strongest path of the above-mentioned measurement signal may include the delay information of the strongest path of at least one of the above-mentioned second signal, third signal and fourth signal.

The delay information of the first path of the measurement signal may include the delay information of the first path of at least one of the second signal, the third signal and the fourth signal.

The delay information of the signal path whose strength of the measured signal exceeds the first threshold may include the delay information of the signal path whose strength of at least one of the second signal, the third signal and the fourth signal exceeds the first threshold. The first threshold may be a protocol agreement or a network side configuration.

The delay information may be delay information for a specific moment, and the arrival time information may be determined by the specific moment, such as the delay value for the start moment of a downlink timeslot/downlink subframe/uplink timeslot/uplink subframe/radio frame.

In this implementation, since only the delay information of the strongest path, the first-reaching path, or the signal path whose strength exceeds the first threshold is required, the measurement result reporting overhead can be achieved.

Optionally, the delay information included in the perception measurement related result information includes at least one of the following:

First arrival time difference information, second arrival time difference information, and third arrival time difference information; wherein, the first arrival time difference information includes the arrival time difference information of the second signal and the third signal, the second arrival time difference information includes the arrival time difference of multiple signal paths of the second signal, and the third arrival time difference information includes the arrival time difference information of the third signal and the fourth signal.

The multiple signal paths of the above-mentioned second signal may be the second arrival time difference information of the multiple signal paths of the second signal when the measured signal only includes the second signal, such as the time delay difference between the strongest path/first arrival path of the second signal and other signal paths, such as the time delay difference between the strongest path/first arrival path of the first signal and at least one path among the other signal paths whose strength exceeds a preset threshold.

The first device may calculate a perception result or a ranging result based on the above-mentioned arrival time difference information to improve the reliability of the perception result or the ranging result.

In some implementations, the arrival time difference information of the second signal and the third signal includes at least one of the following:

Delay difference information between the strongest path of the second signal and the strongest path of the third signal;

Delay difference information between the first path of the second signal and the strongest path of the third signal;

Delay difference information between the strongest path of the second signal and the signal path of the third signal that meets the first condition;

The time delay difference information between the first path of the second signal and the signal path of the third signal that meets the first condition.

The first condition is agreed upon in the protocol or configured on the network side. For example, the first condition includes at least one of the following:

The strength of the signal path exceeds the second threshold;

The difference between the Doppler of the signal path and the Doppler of the first arrival path exceeds the third threshold or is within the first interval;

The Doppler of the signal path exceeds the fourth threshold or is within the second interval;

The delay of the signal path is within the third interval;

The delay difference between the signal path and the first arrival path is within the fourth interval;

The angle of the signal path is within the fifth interval;

The angular difference between the signal path and the first arrival path is within the sixth interval.

The above thresholds and interval ranges are agreed upon by the protocol or configured on the network side.

In the above implementation, since only the delay difference information between signal paths needs to be reported, the measurement result reporting overhead can be saved.

In some implementations, the arrival time difference information of the third signal and the fourth signal includes at least one of the following:

Delay difference information between the strongest path of the third signal and the strongest path of the fourth signal;

Delay difference information between the first path of the third signal and the strongest path of the fourth signal;

Delay difference information between the strongest path of the third signal and the signal path of the fourth signal that meets the first condition;

The time delay difference information between the first path of the third signal and the signal path of the fourth signal that meets the first condition.

Among them, the above-mentioned first condition refers to the corresponding description of the above-mentioned implementation method and will not be repeated here.

In the above implementation, since only the delay difference information between signal paths needs to be reported, the measurement result reporting overhead can be saved.

Optionally, the distance information included in the perception measurement related result information includes at least one of the following:

distance difference information calculated based on the first arrival time difference information;

distance difference information calculated based on the second arrival time difference information;

Distance difference information calculated based on the third arrival time difference information.

In some embodiments, the distance difference information may be used to represent the difference between a baseline distance and a distance sum, wherein the distance sum is the sum of the distance from the first device to the perceived target and the distance from the second device to the perceived target, and the baseline distance is the distance from the first device to the second device.

The distance difference information calculated based on the arrival time difference information may be distance difference information calculated based on the arrival time difference information and the speed of the signal.

In the above implementation, since the measurement result includes the distance difference information, the arrival time information may not be reported, thereby saving the measurement result reporting overhead.

Optionally, the angle information included in the perception measurement related result information includes at least one of the following:

Angle of arrival information of the second signal;

Arrival angle information of the third signal;

information on the difference in arrival angles between the second signal and the third signal;

Arrival angle information of at least one signal path in the second signal;

information on the difference in arrival angles between two signal paths of the second signal;

Arrival angle information of the fourth signal;

The difference in arrival angle between the third signal and the fourth signal.

The arrival angle difference information between the two signal paths of the second signal may be the arrival angle difference information between any two signal paths of the second signal, or may be the arrival angle difference information between the strongest path/first arrival path and other signal paths.

The above angle information may be a specific angle value or an angle range.

The first device can calculate the distance from the perceived target to the second device based on the above angle information, and can also be used to calculate the distance from the perceived target to the first device, etc.

As an optional implementation, the method further includes:

The first device sends indication information to the second device, where the indication information is used to indicate at least one of the following:

Signal configuration information of the measurement signal;

signal configuration information of the first signal;

Measurement configuration information.

In the above implementation manner, the signal resource configuration information of the measurement signal or the first signal can be used to implement measurement based on the corresponding signal configuration information, so as to improve the reliability of time-related information and measurement results.

In some implementations, the measurement configuration information includes at least one of the following:

Measured signal resource indication, measurement quantity, measurement result reporting configuration, and measurement auxiliary information.

The measured signal resource indication may indicate the signal resource measured by the second device. For example, the measured signal resource indication includes an identifier of the measurement signal. The second device determines the signal configuration information of the measurement signal through the identifier, and further determines the measured signal resource.

Among them, the above-mentioned measurement quantities can be divided into the following categories:

The first-level measurement quantity (also called received signal/original channel information) includes at least one of the following:

Received signal/channel response complex results, amplitude/phase, I/Q path and related operation results (operations include addition, subtraction, multiplication and division, matrix addition, subtraction, multiplication, matrix transposition, trigonometric relationship operations, square root operations and power operations, as well as threshold detection results, maximum/minimum value extraction results of the above operation results; among them, operations also include Fast Fourier Transform (FFT)/Inverse Fast Fourier Transform (IFFT), Discrete Fourier Transform (Discrete Fourier Transform, FFT), and Inverse Fast Fourier Transform (IFFT). rm, DFT)/Inverse Discrete Fourier Transform (Inverse Discrete Fourier Transform, IDFT), Two-Dimensional Fast Fourier Transform (Two-Dimensional Fast Fourier Transform, 2D-FFT), Three-Dimensional Fast Fourier Transform (Three-Dimensional Fast Fourier Transform, 3D-FFT), matched filtering, autocorrelation operation, wavelet transform and digital filtering, as well as threshold detection results, maximum/minimum value extraction results of the above operation results, etc.;

The second-level measurement quantity (also called basic measurement quantity) includes at least one of the following: delay, Doppler, angle, intensity, and their multi-dimensional combination representation;

The third level of measurement (also called basic attributes/states) includes at least one of the following: distance, speed, direction, spatial position, acceleration;

The fourth level of measurement (also called advanced attributes/states) includes at least one of the following: target presence, trajectory, movement, Actions, expressions, vital signs, quantities, imaging results, weather, air quality, shapes, materials, and composition.

In some implementations, the signal resource configuration information of the measurement signal and the first signal may be preconfigured for the second device, or configured by the network side for the second device. In some implementations, the measurement configuration information may also be preconfigured for the second device, or configured by the network side for the second device.

In some implementations, the measurement assistance information includes at least one of the following:

The receiving beam indication of the measurement signal, the location information of the perceived target, the perceived area information, the angle information of the perceived target relative to the second device, the angle range information of the perceived target relative to the second device, the location information of the first device, the angle information of the first device relative to the second device, the arrival time information of the first signal, the sending time information of the measurement signal, and the time difference information between the sending time of the measurement signal and the arrival time of the first signal.

The receiving beam indication of the above-mentioned measurement signal can enable the second device to use the corresponding receiving beam for reception, thereby improving the reliability of the measurement.

The above-mentioned location information of the perceived target, the perceived area information, the angle information of the perceived target relative to the second device, and the angle range information of the perceived target relative to the second device can enable the second device to make more targeted measurements of the perceived target, thereby improving the perception performance of the perception measurement.

The position information of the first device and the angle information of the first device relative to the second device can enable the second device to receive the measurement signal more reliably, thereby improving the reliability of the measurement.

Among them, the sending time information of the above-mentioned measurement signal may include the sending time of the second signal, and the time difference information between the sending time of the above-mentioned measurement signal and the arrival time of the first signal may include the time difference between the sending time of the second signal and the arrival time of the first signal.

The arrival time information of the first signal, the sending time information of the measurement signal, and the time difference information between the sending time of the measurement signal and the arrival time of the first signal can enable the second device to calculate the perception measurement or ranging result more simply and quickly.

The signal configuration information of the measurement signal or the first signal may include at least one of the following:

Signal resource information, usage information, waveform, subcarrier spacing, protection interval, power information, sequence information, direction information, quasi co-location (QCL) relationship, antenna port information, cyclic prefix (CP) information of the first signal, and resource information.

The above-mentioned signal resource information may be a signal resource identifier, which is used to distinguish different signal resource configurations.

The above-mentioned usage information is used to indicate that the signal is a signal for communication, such as a signal for channel measurement, channel estimation, synchronization, or carrying data information, or a signal for perception, or a signal for both communication and perception. In some implementations, it is also used to indicate which type of perception service the signal is for, or which type of perception service the signal is for.

In the embodiment of the present application, the sensing service may include at least one of the following:

Detect whether the target exists, positioning, speed detection, distance detection, angle detection, acceleration detection, material analysis, component analysis, shape detection, category classification, radar cross section RCS (Radar Cross Section, RCS) detection, Polarization scattering characteristic detection, fall detection, intrusion detection, number counting, indoor positioning, gesture recognition, lip reading recognition, gait recognition, expression recognition, facial recognition, breathing monitoring, heart rate monitoring, pulse monitoring, humidity/brightness/temperature/atmospheric pressure monitoring, air quality monitoring, weather monitoring, environmental reconstruction, topography, building/vegetation distribution detection, pedestrian or vehicle flow detection, crowd density, vehicle density detection, etc.

Alternatively, the sensing service type may be to classify multiple different sensing services according to certain characteristics, for example, according to the function, it may be divided into detection sensing services (for example, including intrusion detection, fall detection), parameter estimation sensing services (distance, angle, speed calculation), recognition sensing services (motion recognition, identity recognition), etc.;

Alternatively, the perception service type can also be divided according to the range of perception (close-range perception, medium-range perception, long-range perception), according to the degree of perception refinement (coarse-grained perception, fine intensity perception, etc.), according to power consumption/energy consumption, according to resource occupancy, etc.

The waveform may include at least one of the following:

Orthogonal frequency division multiplexing (OFDM), Single-carrier Frequency-Division Multiple Access (SC-FDMA), Orthogonal Time Frequency Space (OTFS), Frequency Modulated Continuous Wave (FMCW), and pulse signal.

The above subcarrier spacing can be the subcarrier spacing of an orthogonal frequency division multiplexing (OFDM) system, such as 30KHz.

The above-mentioned protection interval can be the time interval from the moment when the signal ends to the moment when the latest echo signal of the signal is received; this parameter is proportional to the maximum perception distance; for example, it can be calculated by c/(2R _max ), R _max is the maximum perception distance (which can belong to perception requirement information), such as for a self-transmitted and self-received perception signal, R _max represents the maximum distance from the perception signal receiving and transmitting point to the signal transmitting point; in some cases, the OFDM signal CP can play the role of the minimum protection interval, and c is the speed of light.

The above signal power can take a value from -20dBm to 23dBm at an interval of 2dBm.

The above sequence information may include sequence type information, such as a ZC sequence or a PN sequence, or may include a sequence generation method or a sequence length, etc.

The above-mentioned direction information may be angle information or beam information of signal transmission.

The above-mentioned QCL relationship can be a QCL relationship between the first signal and a synchronization signal block (Synchronization Signal Block, SSB), such as the perception signal includes multiple resources, each resource is associated with an SSB QCL, and the QCL includes Type A, B, C or D.

The above antenna port information may be a maximum number of antenna ports or an antenna port index.

The CP information may include a CP type or a CP length, etc., wherein the CP type may include at least one of the following:

Normal Cyclic Prefix (NCP), Extended Cyclic Prefix (ECP) or the newly designed CP dedicated to perception measurement, etc.

The resource information may include at least one of the following:

The starting frequency domain position, that is, the starting frequency point, can also be the starting resource element (RE), resource Block (Resource Block, RB) index;

The starting time domain position, i.e. the starting time point, can also be the starting symbol index, time slot index, or frame index;

The ending frequency domain position, i.e., the ending frequency point, can be represented by the ending RE and RB index;

The termination time domain position, i.e., the termination time point, can be represented by the termination RE and RB index;

The frequency domain resource length, that is, the frequency domain bandwidth, is inversely proportional to the distance resolution, and the frequency domain bandwidth B of each first signal is ≥ c/(2ΔR), where c is the speed of light and ΔR is the distance resolution;

The time domain resource length, also called the burst duration, is inversely proportional to the Doppler resolution.

Frequency domain resource spacing, which indicates the spacing between adjacent signal frequency domain resource units, can be expressed by the number of REs or RBs, or by a density value (Density). For example, Density = 1 indicates that there is one RE in each RB for carrying signals. The frequency domain resource spacing is inversely proportional to the maximum unambiguous distance/delay, where, for an OFDM system, when subcarriers are continuously mapped, the frequency domain spacing is equal to the subcarrier spacing;

The time domain resource interval is a time interval between two adjacent signal resource units, and the time domain resource interval is associated with a maximum unambiguous Doppler frequency shift or a maximum unambiguous speed.

Time domain resource characteristics: periodic transmission, semi-continuous transmission, and non-periodic transmission.

As an optional implementation manner, when the first operation includes sending the time-related information to the third device, the method further includes:

The first device sends time information of the measurement signal to the third device, where the time information of the measurement signal includes at least one of the following:

The transmission time information of the measurement signal, and the time difference information between the transmission time of the measurement signal and the arrival time of the first signal.

Among them, the sending time information of the above-mentioned measurement signal may include the sending time of the second signal, and the time difference information between the sending time of the above-mentioned measurement signal and the arrival time of the first signal may include the time difference between the sending time of the second signal and the arrival time of the first signal.

The sending time information of the measurement signal and the time difference information between the sending time of the measurement signal and the arrival time of the first signal can enable the second device to calculate the perception measurement or ranging result more simply and quickly.

As an optional implementation, the method further includes:

The first device sends a measurement request to the second device, where the measurement request includes at least one of the following:

Perception measurement request, ranging request.

The measurement request is used to request whether the second device participates in the perception measurement or ranging.

The signal measurement implemented by the above measurement request is performed with the consent of the second device, so as to avoid waste of resources caused by the second device not participating after the first device sends the measurement signal.

In some embodiments, the method further comprises:

The first device receives a measurement response sent by the second device, where the measurement response is used to indicate at least one of the following:

Participate in perception measurement and distance measurement.

It should be noted that the embodiments of the present application are not limited to receiving the above-mentioned measurement response. For example, in some implementations, a timer can be set. If the timer times out without receiving the measurement response, it means that the second device agrees to the above-mentioned measurement request.

In some implementations, the above measurement request may not be sent. For example, in some scenarios, it is assumed that the second device agrees to participate in the perception measurement or ranging.

As an optional implementation manner, the first device performs a first operation including:

In a case where it is determined based on the first signal that the channel between the first device and the second device is a LOS channel, the first operation is performed.

The fact that the channel between the first device and the second device is a LOS channel may be obtained through first signal detection, and the specific detection method may be a method defined in the protocol, which is not limited.

In this implementation, it is possible to implement perception measurement and ranging when the channel between the first device and the second device is a LOS channel. In the case of the LOS channel, the accuracy of the perception measurement and ranging results can be improved.

In some implementations, if the channel between the first device and the second device is a non-line-of-sight (NLOS) channel, the first device may stop performing the first operation, such as sending an instruction to terminate sensing or ranging to the second device. This embodiment of the present application is not limited to this. For example, for some scenarios, it is not necessary to detect whether the channel is LOS, that is, the first operation can also be performed in the case of NLOS.

In an embodiment of the present application, a first device measures a first signal sent by a second device to obtain time-related information of the first signal; the first device performs a first operation, and the first operation includes: sending the time-related information to the second device or the third device, and sending a measurement signal to the second device; or sending a measurement signal to the second device, and calculating at least one of a perception result and a ranging result based on the time-related information and the measurement result, wherein the measurement result includes a measurement result obtained by the second device ranging the measurement signal, wherein the measurement signal is used for ranging. In this way, the first device sends time-related information to the second device or the third device, and the second device or the third device calculates at least one of a perception result and a ranging result based on the time-related information and the measurement result, or the first device calculates at least one of a perception result and a ranging result based on the time-related information and the measurement result of the second device, so that when the distance between the devices is unknown, at least one of a perception result and a ranging result can be calculated based on the measurement results of the two devices to improve the device measurement performance.

Please refer to FIG. 5 , which is a flow chart of another signal transmission method provided in an embodiment of the present application. As shown in FIG. 5 , the method includes the following steps:

Step 501: The second device sends a first signal to the first device;

Step 502: The second device sends a measurement signal to the first device to perform ranging and obtain a measurement result.

Step 503: The second device performs a second operation, where the second operation includes:

Calculate at least one of a perception result and a ranging result based on time-related information and the measurement result, where the time-related information is time-related information obtained by the first device measuring the first signal; or

Send the measurement result to the first device or the third device.

Optionally, when the second operation includes sending the measurement result to the first device or the third device, the method further includes:

The second device sends sending time information of the first signal to the first device or the third device.

Optionally, the time-related information includes:

The arrival time of the first signal.

Optionally, the measurement signal includes a second signal, and the second signal is used to measure the distance between the first device and the second device.

Optionally, when the measurement signal includes only the second signal, the measurement signal is used for sensing measurement and ranging, and the second signal is a signal sent omnidirectionally, or the second signal is a signal sent using a wide beam; or,

In the case where the measurement signal further includes a third signal, the second signal is used for sensing measurement and ranging, the third signal is used for sensing measurement, the beam direction of the second signal is a direction pointing to the second device, and the beam direction of the third signal is a direction corresponding to the area to be sensed; or,

In the case where the measurement signal also includes a third signal and a fourth signal, the third signal is used for perception measurement, the fourth signal is used for perception measurement, the beam directions of the second signal and the third signal are directions pointing to the second device, and the beam direction of the fourth signal is the direction corresponding to the area to be perceived.

Optionally, the measurement result includes ranging related result information; or

The measurement results include: ranging related result information and perception measurement related result information.

Optionally, the ranging related result information includes at least one of the following:

Arrival time information of the measurement signal, and time difference information between the arrival time of the measurement signal and the sending time of the first signal;

or,

The perception measurement related result information includes at least one of the following:

Delay information, distance information, angle information.

Optionally, the arrival time information of the measurement signal includes at least one of the following:

Delay information of the strongest path of the measurement signal;

Delay information of the first arrival path of the measurement signal;

The strength of the measured signal exceeds the delay information of the signal path of the first threshold.

Optionally, the delay information includes at least one of the following:

First arrival time difference information, second arrival time difference information, and third arrival time difference information; wherein the first arrival time difference information includes arrival time difference information of the second signal and the third signal, the second arrival time difference information includes arrival time differences of multiple signal paths of the second signal, and the third arrival time difference information includes arrival time difference information of the third signal and the fourth signal;

or,

The distance information includes at least one of the following:

distance difference information calculated based on the first arrival time difference information;

distance difference information calculated based on the second arrival time difference information;

distance difference information calculated based on the third arrival time difference information;

or,

The angle information includes at least one of the following:

Angle of arrival information of the second signal;

Arrival angle information of the third signal;

information on the difference in arrival angles between the second signal and the third signal;

Arrival angle information of at least one signal path in the second signal;

information on the difference in arrival angles between two signal paths of the second signal;

Arrival angle information of the fourth signal;

The difference in arrival angle between the third signal and the fourth signal.

Optionally, the distance difference information is used to represent the difference between a baseline distance and a distance sum, where the distance sum is the sum of a distance from the first device to a perceived target and a distance from the second device to a perceived target, and the baseline distance is the distance from the first device to the second device.

Optionally, the arrival time difference information between the second signal and the third signal includes at least one of the following:

Delay difference information between the strongest path of the second signal and the strongest path of the third signal;

Delay difference information between the first path of the second signal and the strongest path of the third signal;

Delay difference information between the strongest path of the second signal and the signal path of the third signal that meets the first condition;

Delay difference information between a first path of the second signal and a signal path of the third signal that meets the first condition;

or,

The arrival time difference information of the third signal and the fourth signal includes at least one of the following:

Delay difference information between the strongest path of the third signal and the strongest path of the fourth signal;

Delay difference information between the first path of the third signal and the strongest path of the fourth signal;

Delay difference information between the strongest path of the third signal and the signal path of the fourth signal that meets the first condition;

The time delay difference information between the first path of the third signal and the signal path of the fourth signal that meets the first condition.

Optionally, the first condition includes at least one of the following:

The strength of the signal path exceeds the second threshold;

The difference between the Doppler of the signal path and the Doppler of the first arrival path exceeds the third threshold or is within the first interval;

The Doppler of the signal path exceeds the fourth threshold or is within the second interval;

The delay of the signal path is within the third interval;

The delay difference between the signal path and the first arrival path is within the fourth interval;

The angle of the signal path is within the fifth interval;

The angular difference between the signal path and the first arrival path is within the sixth interval.

Optionally, the method further includes:

The second device receives indication information sent by the first device or the third device, where the indication information is used to indicate at least one of the following:

Signal configuration information of the measurement signal;

signal configuration information of the first signal;

Measurement configuration information.

Optionally, the measurement configuration information includes at least one of the following:

Measured signal resource indication, measurement quantity, measurement result reporting configuration, and measurement auxiliary information.

Optionally, the measurement assistance information includes at least one of the following:

The receiving beam indication of the measurement signal, the location information of the perceived target, the perceived area information, the angle information of the perceived target relative to the second device, the angle range information of the perceived target relative to the second device, the location information of the first device, the angle information of the first device relative to the second device, the arrival time information of the first signal, the sending time information of the measurement signal, and the time difference information between the sending time of the measurement signal and the arrival time of the first signal.

Optionally, the method further includes:

The second device receives a measurement request sent by the first device or the third device, where the measurement request includes at least one of the following:

Perception measurement request, ranging request.

Optionally, the method further includes:

The second device sends a measurement response to the first device or the third device, where the measurement response is used to indicate at least one of the following:

Participate in perception measurement and distance measurement.

Optionally, the perception result includes at least one of the following:

Perceive the location information of the target and the distance information associated with the target;

The ranging result includes at least one of the following:

Round trip time RTT information, and distance information between the first device and the second device.

Optionally, the distance information associated with the perceived target includes at least one of the following:

sensing the distance between the target and the first device;

The distance from the sensing target to the second device;

The sum of the distance from the perception target to the first device and the distance from the perception target to the second device.

It should be noted that this embodiment is an implementation of the second device corresponding to the embodiment shown in Figure 3. Its specific implementation can refer to the relevant description of the embodiment shown in Figure 3. In order to avoid repeated description, this embodiment will not be repeated.

Please refer to FIG. 6 , which is a flow chart of a signal measurement method provided in an embodiment of the present application. As shown in FIG. 6 , the method includes the following steps:

Step 601: The third device receives time related information sent by the first device, wherein the time related information is for the second device. time-related information obtained by measuring a first signal sent by a device;

Step 602: The third device receives a measurement result sent by the second device, where the measurement result includes a measurement result obtained by performing ranging on a measurement signal sent by the first device;

Step 603: The third device calculates at least one of a perception result and a ranging result based on the time-related information and the measurement result.

Optionally, the time-related information includes:

The arrival time of the first signal.

Optionally, the measurement signal includes a second signal, and the second signal is used to measure the distance between the first device and the second device.

Optionally, when the measurement signal includes only the second signal, the measurement signal is used for sensing measurement and ranging, and the second signal is a signal sent omnidirectionally, or the second signal is a signal sent using a wide beam; or,

In the case where the measurement signal further includes a third signal, the second signal is used for sensing measurement and ranging, the third signal is used for sensing measurement, the beam direction of the second signal is a direction pointing to the second device, and the beam direction of the third signal is a direction corresponding to the area to be sensed; or,

In the case where the measurement signal also includes a third signal and a fourth signal, the third signal is used for perception measurement, the fourth signal is used for perception measurement, the beam directions of the second signal and the third signal are directions pointing to the second device, and the beam direction of the fourth signal is the direction corresponding to the area to be perceived.

Optionally, the measurement result includes ranging related result information; or

The measurement results include: ranging related result information and perception measurement related result information.

Optionally, the ranging related result information includes at least one of the following:

Arrival time information of the measurement signal, and time difference information between the arrival time of the measurement signal and the sending time of the first signal;

or,

The perception measurement related result information includes at least one of the following:

Delay information, distance information, angle information.

Optionally, the arrival time information of the measurement signal includes at least one of the following:

Delay information of the strongest path of the measurement signal;

Delay information of the first arrival path of the measurement signal;

The strength of the measured signal exceeds the delay information of the signal path of the first threshold.

Optionally, the delay information includes at least one of the following:

First arrival time difference information, second arrival time difference information, and third arrival time difference information; wherein the first arrival time difference information includes arrival time difference information of the second signal and the third signal, the second arrival time difference information includes arrival time differences of multiple signal paths of the second signal, and the third arrival time difference information includes arrival time difference information of the third signal and the fourth signal;

or,

The distance information includes at least one of the following:

distance difference information calculated based on the first arrival time difference information;

distance difference information calculated based on the second arrival time difference information;

distance difference information calculated based on the third arrival time difference information;

or,

The angle information includes at least one of the following:

arrival angle information of the second signal;

Arrival angle information of the third signal;

information on the difference in arrival angles between the second signal and the third signal;

Arrival angle information of at least one signal path in the second signal;

information on the difference in arrival angles between two signal paths of the second signal;

Arrival angle information of the fourth signal;

The difference in arrival angle between the third signal and the fourth signal.

Optionally, the distance difference information is used to represent the difference between a baseline distance and a distance sum, where the distance sum is the sum of a distance from the first device to a perceived target and a distance from the second device to a perceived target, and the baseline distance is the distance from the first device to the second device.

Optionally, the arrival time difference information between the second signal and the third signal includes at least one of the following:

Delay difference information between the strongest path of the second signal and the strongest path of the third signal;

Delay difference information between the first path of the second signal and the strongest path of the third signal;

Delay difference information between the strongest path of the second signal and the signal path of the third signal that meets the first condition;

Delay difference information between a first path of the second signal and a signal path of the third signal that meets the first condition;

or,

The arrival time difference information of the third signal and the fourth signal includes at least one of the following:

Delay difference information between the strongest path of the third signal and the strongest path of the fourth signal;

Delay difference information between the first path of the third signal and the strongest path of the fourth signal;

Delay difference information between the strongest path of the third signal and the signal path of the fourth signal that meets the first condition;

The time delay difference information between the first path of the third signal and the signal path of the fourth signal that meets the first condition.

Optionally, the first condition includes at least one of the following:

The strength of the signal path exceeds the second threshold;

The difference between the Doppler of the signal path and the Doppler of the first arrival path exceeds the third threshold or is within the first interval;

The Doppler of the signal path exceeds the fourth threshold or is within the second interval;

The delay of the signal path is within the third interval;

The delay difference between the signal path and the first arrival path is within the fourth interval;

The angle of the signal path is within the fifth interval;

The angular difference between the signal path and the first arrival path is within the sixth interval.

Optionally, the method further includes:

The third device receives time information of the measurement signal sent by the first device, where the time information of the measurement signal includes at least one of the following: sending time information of the measurement signal, and time difference information between the sending time of the measurement signal and the arrival time of the first signal;

The third device calculates at least one of a perception result and a ranging result based on the time-related information and the measurement result, including:

The third device calculates at least one of a sensing result and a ranging result based on the time-related information, the time information of the measurement signal, and the measurement result.

Optionally, the method further includes:

The third device sends indication information to the first device or the second device, where the indication information is used to indicate at least one of the following:

Signal configuration information of the measurement signal;

signal configuration information of the first signal;

Measurement configuration information.

Optionally, the measurement configuration information includes at least one of the following:

Measured signal resource indication, measurement quantity, measurement result reporting configuration, and measurement auxiliary information.

Optionally, the measurement assistance information includes at least one of the following:

The receiving beam indication of the measurement signal, the location information of the perceived target, the perceived area information, the angle information of the perceived target relative to the second device, the angle range information of the perceived target relative to the second device, the location information of the first device, the angle information of the first device relative to the second device, the arrival time information of the first signal, the sending time information of the measurement signal, and the time difference information between the sending time of the measurement signal and the arrival time of the first signal.

Optionally, the method further includes:

The third device sends a measurement request to the first device or the second device, where the measurement request includes at least one of the following:

Perception measurement request, ranging request.

Optionally, the perception result includes at least one of the following:

Perceive the location information of the target and the distance information associated with the target;

The ranging result includes at least one of the following:

Round trip time RTT information, and distance information between the first device and the second device.

It should be noted that this embodiment is an implementation of the third device corresponding to the embodiment shown in Figure 3. Its specific implementation can refer to the relevant description of the embodiment shown in Figure 3. In order to avoid repeated description, this embodiment will not be repeated.

The method provided in the embodiments of the present application is illustrated below by means of multiple embodiments:

Embodiment 1:

In this embodiment, the second device sends a first ranging signal (i.e., the above-mentioned first signal) to the first device, the first device performs measurement to obtain a first measurement result (i.e., the above-mentioned time-related information), and sends it to the second device (optionally). The first device sends a measurement signal (including a perception signal or a second ranging signal) to the second device, the second device performs measurement and calculates the perception result or ranging result based on the measurement result sent by the first device. In this embodiment, for RTT ranging, the ranging signal needs to be sent back and forth, the ranging signal sent for the first time is called the first ranging signal, and the signal sent for the second time is called the second ranging signal.

In this embodiment, the sensing signal and the second ranging signal are jointly sent or multiplexed, and the first device (or the second device) calculates the sensing result/or the ranging result. The specific process is as follows:

Step 1: The first device sends a first request message to the second device, where the first request message includes at least one of the following:

The device distance measurement request is to measure the distance between the first device and the second device.

A perception measurement request is a request to measure the distance or position of at least one perception target in the environment.

Optionally, since the perception target ranging or positioning requires measuring the distance between devices, the perception measurement request covers the device ranging request by default.

Step 2: The second device receives the first request information sent by the first device, and (optionally) sends a first response information to the first device to confirm participation in the perception measurement or device ranging initiated by the first device.

Step 3: The second device sends the first signal (first ranging signal) to the first device according to the first signal configuration information. Optionally, the step also includes sending the first signal to the first device at a sending time T0.

The first signal configuration information may be sent by the first device to the second device.

Step 4: The first device receives the first signal and measures it to obtain the arrival time (Time Of Arrival, TOA) T1 of the first signal.

Step 5. Optionally, the first device receives the first signal for measurement to obtain information on whether the channel between the first device and the second device is LOS. If the channel between the first device and the second device is an NLOS channel, the first device sends an indication to the second device to terminate sensing or ranging.

Step 6: The first device sends a signal to the second device according to the signal configuration information, including the following situations:

Case 1: The first device sends the second signal and the third signal to the second device according to the second signal configuration information and the third signal configuration information, wherein the second signal is a signal used for device ranging and perception (i.e., the second signal is used as both a perception signal and a second ranging signal), and the third signal is a signal used for perception. The second signal and the third signal are sent using different beams (spatial filter coefficients), the beam direction of the second signal is the LOS direction (i.e., pointing to the second device), and the beam direction of the third signal is the direction corresponding to the area to be perceived (i.e., pointing to the perceived target).

Case 2: The first device sends a second signal to the second device according to the second signal configuration information, wherein the second signal is a signal used for device ranging and perception (i.e., the second signal is used as both a perception signal and a second ranging signal). The second signal is an omnidirectional signal or a signal sent using a wide beam.

Case 3: The first device sends the second signal, the third signal, and the fourth signal to the second device according to the second signal configuration information, the third signal configuration information, and the fourth signal configuration information, wherein the second signal is a signal for device ranging, and the third signal is a signal for device ranging. The second signal and the fourth signal are signals for sensing. The second signal and the third signal are sent using the same beam (spatial filter coefficient), and the fourth signal is sent using a different beam. The beam direction of the second signal and the third signal is the LOS direction (i.e., pointing to the second device), and the beam direction of the fourth signal is the direction corresponding to the area to be sensed (i.e., pointing to the sensing target).

The first device also records the sending time T2 of the second signal.

Step 7: Before the first device sends a signal to the second device, the first device also sends first indication information to the second device, where the first indication information includes at least one of the following:

Signal configuration information (of the second signal/the third signal/the fourth signal);

Measurement configuration information, including at least one of the following:

The measured signal resource indication, such as the first signal/second signal/third signal identification.

Measurement quantity; illustratively, in this embodiment, the measurement quantity corresponding to the device ranging signal (second signal) may be delay information, such as the arrival time (TOA) of the second signal (specifically, it may be the delay value of the strongest path/first arrival path of the second signal, or the delay value of at least one path in which the strength of the path in the second signal exceeds a preset threshold); the measurement quantity corresponding to the perception signal (the second signal, and/or the third signal, and/or the fourth signal) may be delay information, distance information, angle information, etc.

The reporting configuration, that is, the criteria for reporting the measurement result of the second device, includes at least one of the reported time-frequency domain resource configuration, the reporting period, and the reporting trigger condition.

Measurement auxiliary information, including at least one of the following:

Receive beam indication;

The location information of the sensing target, or the direction information relative to the second device (to help the candidate target node adjust the beam (spatial filter coefficient) when receiving the signal);

Location information of the first device, or direction information of the first device relative to the second device;

Arrival time T1 of the first signal;

The sending time T2 of the second signal;

The time difference between the transmission of the second signal and the arrival time of the first signal (T2-T1).

Among them, the three time information included in the auxiliary information is optional. When the second device calculates the ranging result or the perception result, the first device sends the arrival time T1 of the first signal and the sending time T2 of the second signal to the second device, or the first device sends the time difference between the sending time of the second signal and the arrival time of the first signal to the second device.

It should be noted that each item in the first information may be sent in the same signaling or in different signalings.

Step 8: The second device receives the signal sent by the first device, performs measurement to obtain a measurement result (i.e., the value of the measured quantity), and sends the measurement result to the first device, where the measurement result includes at least one of the following:

The measurement result associated with the device ranging signal (second signal), including the arrival time (TOA) T3 of the second signal (specifically, it can be the delay value of the strongest path/first arrival path of the second signal, which can be the delay value relative to a specific time such as the start time of the downlink time slot/downlink subframe/uplink time slot/uplink subframe/radio frame, or the delay value of at least one path whose strength in the path of the second signal exceeds a preset threshold, or the difference between the arrival time of the second signal and the sending time of the first signal (T3-T0);

The measurement result associated with the perception signal (the second signal, the third signal, or the fourth signal), including at least one of delay information, distance information, and angle information, may include at least one of the following:

Corresponding to the above situation 1: the arrival time difference between the second signal and the third signal, for example: the delay difference between the strongest path/first arrival path of the second signal and the strongest path of the third signal, or the delay difference between the strongest path/first arrival path of the second signal and at least one path of the third signal that meets the preset conditions; distance difference information ( _RT + _RR -L) calculated based on the arrival time difference; angle information, such as the arrival angle of the second signal, the arrival angle of the third signal, and the difference between the arrival angles of the second signal and the third signal.

Corresponding to the above situation 2: arrival time difference calculated based on the second signal, for example: the time delay difference between the strongest path/first arrival path of the second signal and other signal paths, for example, the time delay difference between the strongest path/first arrival path of the second signal and at least one path among other signal paths that meets preset conditions; distance difference information ( _RT + _RR -L) calculated based on the arrival time difference; angle information, for example, the arrival angle of at least one signal path in the second signal, or the difference in arrival angles between two paths.

Corresponding to the above situation 3: the arrival time difference corresponding to the third signal and the fourth signal, for example: the delay difference between the strongest path/first arrival path of the third signal and the strongest path of the fourth signal, or the delay difference between the strongest path/first arrival path of the third signal and at least one path of the fourth signal that meets the preset conditions; distance difference information ( _RT + _RR -L) calculated based on the arrival time difference; angle information, such as the arrival angle of the third signal, the arrival angle of the fourth signal, and the difference between the arrival angles of the third signal and the fourth signal.

Wherein, the satisfying of the preset condition includes at least one of the following:

The signal strength exceeds the preset threshold

The difference between the Doppler of the signal path and the Doppler of the first arrival path (LOS path) exceeds the preset threshold (indicating that the reflection target corresponding to the signal path is a target that meets certain motion characteristics)

The ranging result or the sensing result, when the first device sends the above T1 and T2 to the second device, or the first device sends the above T2-T1 to the second device, may include at least one of the following:

RTT information: RTT = T3-T0-(T2-T1);

Distance information between the first device and the second device: L = RTT*c/2, where c is the speed of light;

The perceived target distance information includes at least one of the distance from the perceived target to the first device, the distance from the perceived target to the second device, and the sum of the distance from the perceived target to the first device and the distance from the perceived target to the second device;

The location information of the sensing target, such as the coordinate information relative to the second device.

Step 9: The first device receives the measurement result sent by the second device. If the measurement result does not include the ranging result or the perception result, the first device calculates the ranging result or the perception result.

In this embodiment, the first signal, the second signal, the third signal, and the fourth signal may be at least one of the following: a communication reference signal (such as CSI-RS, PDSCH DMRS, PRS, etc.), a synchronization signal (such as PSS, SSS), a perception signal (such as a perception signal designed based on a Gold sequence or a ZC sequence, or a perception signal designed based on FMCW), and a communication data signal (a signal that carries communication data information).

Optionally, at least two of the second signal, the third signal, and the fourth signal are time division multiplexed, frequency division multiplexed, or code division multiplexed.

If the second signal is only used for ranging (corresponding to the above situation 3), the second signal may be a subset of the third signal, that is, for example, the transmission resource corresponding to the third signal includes multiple time domain symbols, then the first signal on one of the time domain symbols may be The third signal is used as the second signal.

The first signal, the second signal, the third signal, and the fourth signal are transmitted in the same frequency band and belong to the same TAG.

Embodiment 2:

In this embodiment, the second device sends a first ranging signal (the above-mentioned first signal) to the first device, the first device performs measurement to obtain a first measurement result and sends it to the third device, the first device sends a measurement signal (including a perception signal or a second ranging signal) to the second device, the second device performs measurement to obtain a second measurement result and sends it to the third device, and the third device calculates a perception result or a ranging result based on the first measurement result and the second measurement result.

In this embodiment, the sensing signal and the second ranging signal are jointly sent or multiplexed, and the third device calculates the sensing result or the ranging result. The specific process is as follows:

Step 1: The third device sends a first request message to the first device or the second device. The definition of the first request message is the same as that in Example 1.

Step 2: The first device or the second device receives the first request information sent by the third device, and optionally sends a first response information to the third device to confirm participation in the perception measurement or device ranging initiated by the third device.

Step 3: The second device sends the first signal (first ranging signal) to the first device according to the first signal configuration information. Optionally, the step also includes sending the first signal to the third device at a sending time T0.

The first signal configuration information may be sent by the third device to the second device.

Step 4: The first device receives the first signal and measures it to obtain the arrival time T1 of the first signal.

Step 5: Optionally, the first device receives the first signal for measurement, obtains information about whether the channel between the first device and the second device is LOS, and feeds back to the third device. If the channel between the first device and the second device is an NLOS channel, the third device sends an indication to the first device or the second device to terminate sensing or ranging.

Step 6: The first device sends a signal to the second device according to the signal configuration information as described in Embodiment 1. The signal configuration information may be sent by the third device to the first device.

The first device also records the sending time T2 of the second signal.

Step 7: The first device sends at least one of the following to the third device:

Arrival time T1 of the first signal.

The sending time of the second signal is T2.

The time difference between the transmission of the second signal and the arrival time of the first signal (T2-T1).

Step 8: Before the first device sends a signal to the second device, the third device also sends first indication information to the first device or the second device. The specific content of the first indication information is the same as that of the first embodiment.

Step 9: The second device receives the signal sent by the first device, performs measurement to obtain a measurement result (ie, the value of the measured quantity), and sends it to the third device. The content of the measurement result is the same as that in the first embodiment.

Step 10: The third device receives the measurement result sent by the second device. If the measurement result does not include the ranging result or the perception result, the third device calculates the ranging result or the perception result.

In an embodiment of the present application, a method for multiplexing ranging and sensing signals is provided. A second device sends a first ranging signal to a first device, and the first device performs measurement to obtain a first measurement result, and sends the result to the second device (optionally). A perception signal or a second ranging signal is sent to the second device, the second device performs measurement to obtain a second measurement result, and calculates a perception result or a ranging result based on the first measurement result sent by the first device, and then feeds it back to the first device. Alternatively, the first device and the second device feed back the measurement results to a third device, and the third device calculates the perception result or the ranging result. The second ranging signal can be multiplexed as a reference channel signal in dual-base perception. This can save signal resource overhead and signaling overhead, and ensure dual-base perception performance.

The signal transmission method provided in the embodiment of the present application may be executed by a signal transmission device. In the embodiment of the present application, a signal transmission method executed by a signal measuring device is taken as an example to illustrate the signal transmission device provided in the embodiment of the present application.

The signal measurement method provided in the embodiment of the present application may be executed by a signal measurement device. In the embodiment of the present application, the signal measurement device provided in the embodiment of the present application is described by taking the signal measurement device executing the signal measurement method as an example.

Please refer to FIG. 7 , which is a structural diagram of a signal transmission device provided in an embodiment of the present application. As shown in FIG. 7 , the signal transmission device 700 includes:

A measuring module 701 is configured to measure a first signal sent by a second device to obtain time-related information of the first signal;

The execution module 702 is configured to execute a first operation, where the first operation includes:

sending the time-related information to the second device or the third device, and sending a measurement signal to the second device; or,

A measurement signal is sent to the second device, and at least one of a perception result and a ranging result is calculated based on the time-related information and the measurement result, wherein the measurement result includes a measurement result obtained by the second device performing ranging on the measurement signal, wherein the measurement signal is used for ranging.

Optionally, when the first operation includes calculating at least one of a perception result and a ranging result based on the time-related information and the measurement result, the device further includes:

The first receiving module is used to receive the sending time information of the first signal sent by the second device.

Optionally, the time-related information includes:

The arrival time of the first signal.

Optionally, the measurement signal includes a second signal, and the second signal is used to measure the distance between the first device and the second device.

Optionally, when the measurement signal includes only the second signal, the measurement signal is used for sensing measurement and ranging, and the second signal is a signal sent omnidirectionally, or the second signal is a signal sent using a wide beam; or,

In the case where the measurement signal further includes a third signal, the second signal is used for sensing measurement and ranging, the third signal is used for sensing measurement, the beam direction of the second signal is a direction pointing to the second device, and the beam direction of the third signal is a direction corresponding to the area to be sensed; or,

In the case where the measurement signal also includes a third signal and a fourth signal, the third signal is used for perception measurement, the fourth signal is used for perception measurement, the beam directions of the second signal and the third signal are directions pointing to the second device, and the beam direction of the fourth signal is the direction corresponding to the area to be perceived.

Optionally, when the first operation includes calculating at least one of a perception result and a ranging result based on the time-related information and the measurement result, the device further includes:

The second receiving module is used to receive the measurement result sent by the second device.

Optionally, the measurement result includes ranging related result information; or

The measurement results include: ranging related result information and perception measurement related result information.

Optionally, the ranging related result information includes at least one of the following:

Arrival time information of the measurement signal, and time difference information between the arrival time of the measurement signal and the sending time of the first signal;

or,

The perception measurement related result information includes at least one of the following:

Delay information, distance information, angle information.

Optionally, the arrival time information of the measurement signal includes at least one of the following:

Delay information of the strongest path of the measurement signal;

Delay information of the first arrival path of the measurement signal;

The strength of the measured signal exceeds the delay information of the signal path of the first threshold.

Optionally, the delay information includes at least one of the following:

First arrival time difference information, second arrival time difference information, and third arrival time difference information; wherein the first arrival time difference information includes arrival time difference information of the second signal and the third signal, the second arrival time difference information includes arrival time differences of multiple signal paths of the second signal, and the third arrival time difference information includes arrival time difference information of the third signal and the fourth signal;

or,

The distance information includes at least one of the following:

distance difference information calculated based on the first arrival time difference information;

distance difference information calculated based on the second arrival time difference information;

distance difference information calculated based on the third arrival time difference information;

or,

The angle information includes at least one of the following:

Angle of arrival information of the second signal;

Arrival angle information of the third signal;

information on the difference in arrival angles between the second signal and the third signal;

Arrival angle information of at least one signal path in the second signal;

information on the difference in arrival angles between two signal paths of the second signal;

Arrival angle information of the fourth signal;

The difference in arrival angle between the third signal and the fourth signal.

Optionally, the distance difference information is used to represent the difference between the baseline distance and the distance sum, where the distance sum is the first The baseline distance is the sum of the distance from the first device to the sensing target and the distance from the second device to the sensing target, and the baseline distance is the distance from the first device to the second device.

Optionally, the arrival time difference information between the second signal and the third signal includes at least one of the following:

Delay difference information between the strongest path of the second signal and the strongest path of the third signal;

Delay difference information between the first path of the second signal and the strongest path of the third signal;

Delay difference information between the strongest path of the second signal and the signal path of the third signal that meets the first condition;

Delay difference information between a first path of the second signal and a signal path of the third signal that meets the first condition;

or,

The arrival time difference information of the third signal and the fourth signal includes at least one of the following:

Delay difference information between the strongest path of the third signal and the strongest path of the fourth signal;

Delay difference information between the first path of the third signal and the strongest path of the fourth signal;

Delay difference information between the strongest path of the third signal and the signal path of the fourth signal that meets the first condition;

The time delay difference information between the first path of the third signal and the signal path of the fourth signal that meets the first condition.

Optionally, the first condition includes at least one of the following:

The strength of the signal path exceeds the second threshold;

The difference between the Doppler of the signal path and the Doppler of the first arrival path exceeds the third threshold or is within the first interval;

The Doppler of the signal path exceeds the fourth threshold or is within the second interval;

The delay of the signal path is within the third interval;

The delay difference between the signal path and the first arrival path is within the fourth interval;

The angle of the signal path is within the fifth interval;

The angular difference between the signal path and the first arrival path is within the sixth interval.

Optionally, the device further comprises:

The second sending module is configured to send indication information to the second device, where the indication information is used to indicate at least one of the following:

Signal configuration information of the measurement signal;

signal configuration information of the first signal;

Measurement configuration information.

Optionally, the measurement configuration information includes at least one of the following:

Measured signal resource indication, measurement quantity, measurement result reporting configuration, and measurement auxiliary information.

Optionally, the measurement assistance information includes at least one of the following:

The receiving beam indication of the measurement signal, the location information of the perceived target, the perceived area information, the angle information of the perceived target relative to the second device, the angle range information of the perceived target relative to the second device, the location information of the first device, the angle information of the first device relative to the second device, the arrival time information of the first signal, the sending time information of the measurement signal, and the time difference information between the sending time of the measurement signal and the arrival time of the first signal.

Optionally, when the first operation includes sending the time-related information to the third device, the apparatus further includes:

A third sending module is configured to send time information of the measurement signal to the third device, where the time information of the measurement signal includes at least one of the following:

The transmission time information of the measurement signal, and the time difference information between the transmission time of the measurement signal and the arrival time of the first signal.

Optionally, the device further comprises:

The first device sends a measurement request to the second device, where the measurement request includes at least one of the following:

Perception measurement request, ranging request.

Optionally, the device further comprises:

The third receiving module is configured to receive a measurement response sent by the second device, where the measurement response is used to indicate at least one of the following:

Participate in perception measurement and distance measurement.

Optionally, the perception result includes at least one of the following:

Perceive the location information of the target and the distance information associated with the target;

The ranging result includes at least one of the following:

Round trip time RTT information, and distance information between the first device and the second device.

Optionally, the distance information associated with the perceived target includes at least one of the following:

sensing the distance between the target and the first device;

The distance from the sensing target to the second device;

The sum of the distance from the perception target to the first device and the distance from the perception target to the second device.

Optionally, at least one of the first signal, the second signal, the third signal, and the fourth signal is the following signal:

Communication reference signal, synchronization signal, perception signal or communication data signal;

or,

At least two of the second signal, the third signal and the fourth signal are time-division multiplexed, frequency-division multiplexed or code-division multiplexed;

or,

In the case where the second signal is used only for ranging, the second signal is a subset of the third signal;

or,

When transmission resources of the first signal, the second signal, the third signal and the fourth signal belong to the same frequency band, timing advances TA corresponding to the first signal, the second signal, the third signal and the fourth signal belong to the same timing advance group TAG.

The above signal transmission device can improve the measurement performance of the equipment.

In the embodiment of the present application, the signal transmission device may be an electronic device, such as an electronic device having an operating system, or It is a component in an electronic device, such as an integrated circuit or a chip. For example, the electronic device may be a terminal, or may be other devices other than a terminal. For example, the terminal may include but is not limited to the types of terminals listed in the embodiments of the present application, and other devices may be servers, network attached storage (NAS), etc., which are not specifically limited in the embodiments of the present application.

The signal transmission device provided in the embodiment of the present application can implement each process implemented by the method embodiment shown in Figure 3 and achieve the same technical effect. To avoid repetition, it will not be repeated here.

Please refer to FIG. 8 , which is a structural diagram of another signal transmission device provided in an embodiment of the present application. As shown in FIG. 8 , the signal transmission device 800 includes:

A first sending module 801, configured to send a first signal to a first device;

The measuring module 802 is configured to send a measurement signal to the first device to perform distance measurement and obtain a measurement result;

The execution module 803 is configured to execute a second operation, where the second operation includes:

Calculate at least one of a perception result and a ranging result based on time-related information and the measurement result, where the time-related information is time-related information obtained by the first device measuring the first signal; or

Send the measurement result to the first device or the third device.

Optionally, when the second operation includes sending the measurement result to the first device or the third device, the apparatus further includes:

The second sending module is used to send the sending time information of the first signal to the first device or the third device.

Optionally, the time-related information includes:

The arrival time of the first signal.

Optionally, the measurement signal includes a second signal, and the second signal is used to measure the distance between the first device and the second device.

Optionally, when the measurement signal includes only the second signal, the measurement signal is used for sensing measurement and ranging, and the second signal is a signal sent omnidirectionally, or the second signal is a signal sent using a wide beam; or,

In the case where the measurement signal further includes a third signal, the second signal is used for sensing measurement and ranging, the third signal is used for sensing measurement, the beam direction of the second signal is a direction pointing to the second device, and the beam direction of the third signal is a direction corresponding to the area to be sensed; or,

In the case where the measurement signal also includes a third signal and a fourth signal, the third signal is used for perception measurement, the fourth signal is used for perception measurement, the beam directions of the second signal and the third signal are directions pointing to the second device, and the beam direction of the fourth signal is the direction corresponding to the area to be perceived.

Optionally, the measurement result includes ranging related result information; or

The measurement results include: ranging related result information and perception measurement related result information.

Optionally, the ranging related result information includes at least one of the following:

The arrival time information of the measurement signal, the arrival time of the measurement signal and the sending time of the first signal Time difference information;

or,

The perception measurement related result information includes at least one of the following:

Delay information, distance information, angle information.

Optionally, the arrival time information of the measurement signal includes at least one of the following:

Delay information of the strongest path of the measurement signal;

Delay information of the first arrival path of the measurement signal;

The strength of the measured signal exceeds the delay information of the signal path of the first threshold.

Optionally, the delay information includes at least one of the following:

First arrival time difference information, second arrival time difference information, and third arrival time difference information; wherein the first arrival time difference information includes arrival time difference information of the second signal and the third signal, the second arrival time difference information includes arrival time differences of multiple signal paths of the second signal, and the third arrival time difference information includes arrival time difference information of the third signal and the fourth signal;

or,

The distance information includes at least one of the following:

distance difference information calculated based on the first arrival time difference information;

distance difference information calculated based on the second arrival time difference information;

distance difference information calculated based on the third arrival time difference information;

or,

The angle information includes at least one of the following:

arrival angle information of the second signal;

Arrival angle information of the third signal;

information on the difference in arrival angles between the second signal and the third signal;

Arrival angle information of at least one signal path in the second signal;

information on the difference in arrival angles between two signal paths of the second signal;

Arrival angle information of the fourth signal;

The difference in arrival angle between the third signal and the fourth signal.

Optionally, the distance difference information is used to represent the difference between a baseline distance and a distance sum, where the distance sum is the sum of a distance from the first device to a perceived target and a distance from the second device to a perceived target, and the baseline distance is the distance from the first device to the second device.

Optionally, the arrival time difference information between the second signal and the third signal includes at least one of the following:

Delay difference information between the strongest path of the second signal and the strongest path of the third signal;

Delay difference information between the first path of the second signal and the strongest path of the third signal;

Delay difference information between the strongest path of the second signal and the signal path of the third signal that meets the first condition;

Delay difference information between a first path of the second signal and a signal path of the third signal that meets the first condition;

or,

The arrival time difference information of the third signal and the fourth signal includes at least one of the following:

Delay difference information between the strongest path of the third signal and the strongest path of the fourth signal;

Delay difference information between the first path of the third signal and the strongest path of the fourth signal;

Delay difference information between the strongest path of the third signal and the signal path of the fourth signal that meets the first condition;

The time delay difference information between the first path of the third signal and the signal path of the fourth signal that meets the first condition.

Optionally, the first condition includes at least one of the following:

The strength of the signal path exceeds the second threshold;

The difference between the Doppler of the signal path and the Doppler of the first arrival path exceeds the third threshold or is within the first interval;

The Doppler of the signal path exceeds the fourth threshold or is within the second interval;

The delay of the signal path is within the third interval;

The delay difference between the signal path and the first arrival path is within the fourth interval;

The angle of the signal path is within the fifth interval;

The angular difference between the signal path and the first arrival path is within the sixth interval.

Optionally, the device further comprises:

A first receiving module is configured to receive indication information sent by the first device or the third device, where the indication information is used to indicate at least one of the following:

Signal configuration information of the measurement signal;

signal configuration information of the first signal;

Measurement configuration information.

Optionally, the measurement configuration information includes at least one of the following:

Measured signal resource indication, measurement quantity, measurement result reporting configuration, and measurement auxiliary information.

Optionally, the measurement assistance information includes at least one of the following:

The receiving beam indication of the measurement signal, the location information of the perceived target, the perceived area information, the angle information of the perceived target relative to the second device, the angle range information of the perceived target relative to the second device, the location information of the first device, the angle information of the first device relative to the second device, the arrival time information of the first signal, the sending time information of the measurement signal, and the time difference information between the sending time of the measurement signal and the arrival time of the first signal.

Optionally, the device further comprises:

The second receiving module is configured to receive a measurement request sent by the first device or the third device, where the measurement request includes at least one of the following:

Perception measurement request, ranging request.

Optionally, the device further comprises:

A third sending module is configured to send a measurement response to the first device or the third device, where the measurement response is used to indicate at least one of the following:

Participate in perception measurement and distance measurement.

Optionally, the perception result includes at least one of the following:

Perceive the location information of the target and the distance information associated with the target;

The ranging result includes at least one of the following:

Round trip time RTT information, and distance information between the first device and the second device.

Optionally, the distance information associated with the perceived target includes at least one of the following:

sensing the distance between the target and the first device;

The distance from the sensing target to the second device;

The sum of the distance from the perception target to the first device and the distance from the perception target to the second device.

The above signal transmission device can improve the measurement performance of the equipment.

The signal transmission device in the embodiment of the present application may be an electronic device, such as an electronic device with an operating system, or a component in the electronic device, such as an integrated circuit or a chip. The electronic device may be a terminal or a network side device.

The signal transmission device provided in the embodiment of the present application can implement each process implemented by the method embodiment shown in Figure 5 and achieve the same technical effect. To avoid repetition, it will not be repeated here.

Please refer to FIG. 9 , which is a structural diagram of a signal measuring device provided in an embodiment of the present application. As shown in FIG. 9 , the signal measuring device 900 includes:

A first receiving module 901 is used to receive time related information sent by a first device, where the time related information is time related information obtained by measuring a first signal sent by a second device;

A second receiving module 902 is used to receive a measurement result sent by the second device, where the measurement result includes a measurement result obtained by performing ranging on the measurement signal sent by the first device;

The calculation module 903 is used to calculate at least one of the perception result and the ranging result based on the time-related information and the measurement result.

Optionally, the time-related information includes:

The arrival time of the first signal.

Optionally, the measurement signal includes a second signal, and the second signal is used to measure the distance between the first device and the second device.

Optionally, when the measurement signal includes only the second signal, the measurement signal is used for sensing measurement and ranging, and the second signal is a signal sent omnidirectionally, or the second signal is a signal sent using a wide beam; or,

In the case where the measurement signal further includes a third signal, the second signal is used for sensing measurement and ranging, the third signal is used for sensing measurement, the beam direction of the second signal is a direction pointing to the second device, and the beam direction of the third signal is a direction corresponding to the area to be sensed; or,

In the case where the measurement signal also includes a third signal and a fourth signal, the third signal is used for perception measurement, the fourth signal is used for perception measurement, the beam directions of the second signal and the third signal are directions pointing to the second device, and the beam direction of the fourth signal is the direction corresponding to the area to be perceived.

Optionally, the measurement result includes ranging related result information; or

The measurement results include: ranging related result information and perception measurement related result information.

Optionally, the ranging related result information includes at least one of the following:

Arrival time information of the measurement signal, and time difference information between the arrival time of the measurement signal and the sending time of the first signal;

or,

The perception measurement related result information includes at least one of the following:

Delay information, distance information, angle information.

Optionally, the arrival time information of the measurement signal includes at least one of the following:

Delay information of the strongest path of the measurement signal;

Delay information of the first arrival path of the measurement signal;

The strength of the measured signal exceeds the delay information of the signal path of the first threshold.

Optionally, the delay information includes at least one of the following:

First arrival time difference information, second arrival time difference information, and third arrival time difference information; wherein the first arrival time difference information includes arrival time difference information of the second signal and the third signal, the second arrival time difference information includes arrival time differences of multiple signal paths of the second signal, and the third arrival time difference information includes arrival time difference information of the third signal and the fourth signal;

or,

The distance information includes at least one of the following:

distance difference information calculated based on the first arrival time difference information;

distance difference information calculated based on the second arrival time difference information;

distance difference information calculated based on the third arrival time difference information;

or,

The angle information includes at least one of the following:

Angle of arrival information of the second signal;

Arrival angle information of the third signal;

information on the difference in arrival angles between the second signal and the third signal;

Arrival angle information of at least one signal path in the second signal;

information on the difference in arrival angles between two signal paths of the second signal;

Arrival angle information of the fourth signal;

The difference in arrival angle between the third signal and the fourth signal.

Optionally, the distance difference information is used to represent the difference between a baseline distance and a distance sum, where the distance sum is the sum of a distance from the first device to a perceived target and a distance from the second device to a perceived target, and the baseline distance is the distance from the first device to the second device.

Optionally, the arrival time difference information between the second signal and the third signal includes at least one of the following:

Delay difference information between the strongest path of the second signal and the strongest path of the third signal;

Delay difference information between the first path of the second signal and the strongest path of the third signal;

Delay difference information between the strongest path of the second signal and the signal path of the third signal that meets the first condition;

Delay difference information between a first path of the second signal and a signal path of the third signal that meets the first condition;

or,

The arrival time difference information of the third signal and the fourth signal includes at least one of the following:

Delay difference information between the strongest path of the third signal and the strongest path of the fourth signal;

Delay difference information between the first path of the third signal and the strongest path of the fourth signal;

Delay difference information between the strongest path of the third signal and the signal path of the fourth signal that meets the first condition;

The time delay difference information between the first path of the third signal and the signal path of the fourth signal that meets the first condition.

Optionally, the first condition includes at least one of the following:

The strength of the signal path exceeds the second threshold;

The difference between the Doppler of the signal path and the Doppler of the first arrival path exceeds the third threshold or is within the first interval;

The Doppler of the signal path exceeds the fourth threshold or is within the second interval;

The delay of the signal path is within the third interval;

The delay difference between the signal path and the first arrival path is within the fourth interval;

The angle of the signal path is within the fifth interval;

The angular difference between the signal path and the first arrival path is within the sixth interval.

Optionally, the device further comprises:

a third receiving module, configured to receive time information of the measurement signal sent by the first device, wherein the time information of the measurement signal includes at least one of the following: sending time information of the measurement signal, and time difference information between the sending time of the measurement signal and the arrival time of the first signal;

The calculating at least one of the perception result and the ranging result based on the time-related information and the measurement result comprises:

At least one of a sensing result and a ranging result is calculated based on the time-related information, the time information of the measurement signal, and the measurement result.

Optionally, the device further comprises:

A first sending module is configured to send indication information to the first device or the second device, where the indication information is used to indicate at least one of the following:

Signal configuration information of the measurement signal;

signal configuration information of the first signal;

Measurement configuration information.

Optionally, the measurement configuration information includes at least one of the following:

Measured signal resource indication, measurement quantity, measurement result reporting configuration, and measurement auxiliary information.

Optionally, the measurement assistance information includes at least one of the following:

The receiving beam indication of the measurement signal, the position information of the perceived target, the perceived area information, the perceived target The device also includes the angle information of the sensing target relative to the second device, the angle range information of the sensing target relative to the second device, the position information of the first device, the angle information of the first device relative to the second device, the arrival time information of the first signal, the sending time information of the measurement signal, and the time difference information between the sending time of the measurement signal and the arrival time of the first signal.

Optionally, the device further comprises:

A second sending module is configured to send a measurement request to the first device or the second device, where the measurement request includes at least one of the following:

Perception measurement request, ranging request.

Optionally, the perception result includes at least one of the following:

Perceive the location information of the target and the distance information associated with the target;

The ranging result includes at least one of the following:

RTT information, and distance information between the first device and the second device.

The signal measurement device can improve the measurement performance of the equipment.

The signal measuring device in the embodiment of the present application may be an electronic device, such as an electronic device with an operating system, or a component in the electronic device, such as an integrated circuit or a chip. The electronic device may be a terminal or a network side device.

The signal measuring device provided in the embodiment of the present application can implement each process implemented by the method embodiment shown in FIG6 and achieve the same technical effect. To avoid repetition, it will not be described again here.

Optionally, as shown in FIG10 , an embodiment of the present application further provides a communication device 1000, including a processor 1001 and a memory 1002, wherein the memory 1002 stores a program or instruction that can be run on the processor 1001. For example, when the communication device 1000 is a first device, the program or instruction is executed by the processor 1001 to implement the various steps of the signal transmission method embodiment on the first device side, and can achieve the same technical effect. When the communication device 1000 is a second device, the program or instruction is executed by the processor 1001 to implement the various steps of the signal transmission method embodiment on the second device side, and can achieve the same technical effect. When the communication device 1000 is a third device, the program or instruction is executed by the processor 1001 to implement the various steps of the signal measurement method embodiment, and can achieve the same technical effect. To avoid repetition, it will not be repeated here.

An embodiment of the present application also provides a communication device, including a processor and a communication interface, wherein the communication interface is used to measure a first signal sent by a second device to obtain time-related information of the first signal; the processor or the communication interface is used to perform a first operation, and the first operation includes: sending the time-related information to the second device or a third device, and sending a measurement signal to the second device; or, sending a measurement signal to the second device, and calculating at least one of a perception result and a ranging result based on the time-related information and the measurement result, the measurement result includes a measurement result obtained by the second device ranging the measurement signal, wherein the measurement signal is used for ranging. This communication device embodiment corresponds to the above-mentioned signal transmission method embodiment, and each implementation process and implementation method of the above-mentioned method embodiment can be applied to this communication device embodiment, and can achieve the same technical effect.

Specifically, Figure 11 is a schematic diagram of the hardware structure of a device for implementing an embodiment of the present application, and the device is a first device, a second device, or a second device.

The device 1100 includes but is not limited to: a radio frequency unit 1101, a network module 1102, an audio output unit 1103, an input unit 1104, a sensor 1105, a display unit 1106, a user input unit 1107, an interface unit 1108, a memory 1109 and at least some of the components in the processor 1110.

Those skilled in the art will appreciate that the device 1100 may also include a power source (such as a battery) for supplying power to each component, and the power source may be logically connected to the processor 1110 through a power management system, so that the power management system can manage charging, discharging, and power consumption. The device structure shown in FIG11 does not constitute a limitation on the device, and the device may include more or fewer components than shown, or combine certain components, or arrange components differently, which will not be described in detail here.

It should be understood that in the embodiment of the present application, the input unit 1104 may include a graphics processing unit (GPU) 11041 and a microphone 11042, and the graphics processor 11041 processes the image data of the static picture or video obtained by the image capture device (such as a camera) in the video capture mode or the image capture mode. The display unit 1106 may include a display panel 11061, and the display panel 11061 may be configured in the form of a liquid crystal display, an organic light emitting diode, etc. The user input unit 1107 includes a touch panel 11071 and at least one of other input devices 11072. The touch panel 11071 is also called a touch screen. The touch panel 11071 may include two parts: a touch detection device and a touch controller. Other input devices 11072 may include, but are not limited to, a physical keyboard, function keys (such as a volume control key, a switch key, etc.), a trackball, a mouse, and a joystick, which will not be repeated here.

In the embodiment of the present application, after receiving downlink data from the network side device, the RF unit 1101 can transmit the data to the processor 1110 for processing; in addition, the RF unit 1101 can send uplink data to the network side device. Generally, the RF unit 1101 includes but is not limited to an antenna, an amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, etc.

The memory 1109 can be used to store software programs or instructions and various data. The memory 1109 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, an application program or instruction required for at least one function (such as a sound playback function, an image playback function, etc.), etc. In addition, the memory 1109 may include a volatile memory or a non-volatile memory, or the memory 1109 may include both volatile and non-volatile memories. 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 1109 in the embodiment of the present application includes but is not limited to these and any other suitable types of memory.

The processor 1110 may include one or more processing units; optionally, the processor 1110 integrates an application processor and a modem processor, wherein the application processor mainly processes operations related to the operating system, user interface, and application programs, and the modem processor mainly processes wireless communication signals, such as a baseband processor. It is understandable that the above-mentioned modem processor The processor may not be integrated into the processor 1110.

In this embodiment, the above device is taken as the first device, and the first device is taken as the terminal for illustration.

The radio frequency unit 1101 is configured to measure a first signal sent by a second device to obtain time-related information of the first signal;

The RF unit 1101 or the processor 1110 is configured to perform a first operation, where the first operation includes:

sending the time-related information to the second device or the third device, and sending a measurement signal to the second device; or,

A measurement signal is sent to the second device, and at least one of a perception result and a ranging result is calculated based on the time-related information and the measurement result, wherein the measurement result includes a measurement result obtained by the second device performing ranging on the measurement signal, wherein the measurement signal is used for ranging.

Optionally, when the first operation includes calculating at least one of a perception result and a ranging result based on the time-related information and the measurement result, the radio frequency unit 1101 is further used to:

Receive sending time information of the first signal sent by the second device.

Optionally, the time-related information includes:

The arrival time of the first signal.

Optionally, the measurement signal includes a second signal, and the second signal is used to measure the distance between the first device and the second device.

Optionally, when the measurement signal includes only the second signal, the measurement signal is used for sensing measurement and ranging, and the second signal is a signal sent omnidirectionally, or the second signal is a signal sent using a wide beam; or,

In the case where the measurement signal further includes a third signal, the second signal is used for sensing measurement and ranging, the third signal is used for sensing measurement, the beam direction of the second signal is a direction pointing to the second device, and the beam direction of the third signal is a direction corresponding to the area to be sensed; or,

In the case where the measurement signal also includes a third signal and a fourth signal, the third signal is used for perception measurement, the fourth signal is used for perception measurement, the beam directions of the second signal and the third signal are directions pointing to the second device, and the beam direction of the fourth signal is the direction corresponding to the area to be perceived.

Optionally, when the first operation includes calculating at least one of a perception result and a ranging result based on the time-related information and the measurement result, the method further includes:

The first device receives the measurement result sent by the second device.

Optionally, the measurement result includes ranging related result information; or

The measurement results include: ranging related result information and perception measurement related result information.

Optionally, the ranging related result information includes at least one of the following:

Arrival time information of the measurement signal, and time difference information between the arrival time of the measurement signal and the sending time of the first signal;

or,

The perception measurement related result information includes at least one of the following:

Delay information, distance information, angle information.

Optionally, the arrival time information of the measurement signal includes at least one of the following:

Delay information of the strongest path of the measurement signal;

Delay information of the first arrival path of the measurement signal;

The strength of the measured signal exceeds the delay information of the signal path of the first threshold.

Optionally, the delay information includes at least one of the following:

First arrival time difference information, second arrival time difference information, and third arrival time difference information; wherein the first arrival time difference information includes arrival time difference information of the second signal and the third signal, the second arrival time difference information includes arrival time differences of multiple signal paths of the second signal, and the third arrival time difference information includes arrival time difference information of the third signal and the fourth signal;

or,

The distance information includes at least one of the following:

distance difference information calculated based on the first arrival time difference information;

distance difference information calculated based on the second arrival time difference information;

distance difference information calculated based on the third arrival time difference information;

or,

The angle information includes at least one of the following:

Angle of arrival information of the second signal;

Arrival angle information of the third signal;

information on the difference in arrival angles between the second signal and the third signal;

Arrival angle information of at least one signal path in the second signal;

information on the difference in arrival angles between two signal paths of the second signal;

Arrival angle information of the fourth signal;

The difference in arrival angle between the third signal and the fourth signal.

Optionally, the distance difference information is used to represent the difference between a baseline distance and a distance sum, where the distance sum is the sum of a distance from the first device to a perceived target and a distance from the second device to a perceived target, and the baseline distance is the distance from the first device to the second device.

Optionally, the arrival time difference information between the second signal and the third signal includes at least one of the following:

Delay difference information between the strongest path of the second signal and the strongest path of the third signal;

Delay difference information between the first path of the second signal and the strongest path of the third signal;

Delay difference information between the strongest path of the second signal and the signal path of the third signal that meets the first condition;

Delay difference information between a first path of the second signal and a signal path of the third signal that meets the first condition;

or,

The arrival time difference information of the third signal and the fourth signal includes at least one of the following:

Delay difference information between the strongest path of the third signal and the strongest path of the fourth signal;

Delay difference information between the first path of the third signal and the strongest path of the fourth signal;

Delay difference information between the strongest path of the third signal and the signal path of the fourth signal that meets the first condition;

The time delay difference information between the first path of the third signal and the signal path of the fourth signal that meets the first condition.

Optionally, the first condition includes at least one of the following:

The strength of the signal path exceeds the second threshold;

The difference between the Doppler of the signal path and the Doppler of the first arrival path exceeds the third threshold or is within the first interval;

The Doppler of the signal path exceeds the fourth threshold or is within the second interval;

The delay of the signal path is within the third interval;

The delay difference between the signal path and the first arrival path is within the fourth interval;

The angle of the signal path is within the fifth interval;

The angular difference between the signal path and the first arrival path is within the sixth interval.

Optionally, the radio frequency unit 1101 is further configured to:

Sending indication information to the second device, where the indication information is used to indicate at least one of the following:

Signal configuration information of the measurement signal;

signal configuration information of the first signal;

Measurement configuration information.

Optionally, the measurement configuration information includes at least one of the following:

Measured signal resource indication, measurement quantity, measurement result reporting configuration, and measurement auxiliary information.

Optionally, the measurement assistance information includes at least one of the following:

The receiving beam indication of the measurement signal, the location information of the perceived target, the perceived area information, the angle information of the perceived target relative to the second device, the angle range information of the perceived target relative to the second device, the location information of the first device, the angle information of the first device relative to the second device, the arrival time information of the first signal, the sending time information of the measurement signal, and the time difference information between the sending time of the measurement signal and the arrival time of the first signal.

Optionally, when the first operation includes sending the time-related information to the third device, the radio frequency unit 1101 is further used to:

Sending time information of the measurement signal to the third device, where the time information of the measurement signal includes at least one of the following:

The transmission time information of the measurement signal, and the time difference information between the transmission time of the measurement signal and the arrival time of the first signal.

Optionally, the radio frequency unit 1101 is further configured to:

Sending a measurement request to the second device, where the measurement request includes at least one of the following:

Perception measurement request, ranging request.

Optionally, the radio frequency unit 1101 is further configured to:

receiving a measurement response sent by the second device, where the measurement response is used to indicate at least one of the following:

Participate in perception measurement and distance measurement.

Optionally, the perception result includes at least one of the following:

Perceive the location information of the target and the distance information associated with the target;

The ranging result includes at least one of the following:

Round trip time RTT information, and distance information between the first device and the second device.

Optionally, the distance information associated with the perceived target includes at least one of the following:

sensing the distance between the target and the first device;

The distance from the sensing target to the second device;

The sum of the distance from the perception target to the first device and the distance from the perception target to the second device.

Optionally, at least one of the first signal, the second signal, the third signal, and the fourth signal is the following signal:

Communication reference signal, synchronization signal, perception signal or communication data signal;

or,

At least two of the second signal, the third signal and the fourth signal are time-division multiplexed, frequency-division multiplexed or code-division multiplexed;

or,

In the case where the second signal is used only for ranging, the second signal is a subset of the third signal;

or,

When transmission resources of the first signal, the second signal, the third signal and the fourth signal belong to the same frequency band, timing advances TA corresponding to the first signal, the second signal, the third signal and the fourth signal belong to the same timing advance group TAG.

The above devices can improve the device measurement performance.

It can be understood that the implementation process of each implementation method mentioned in this embodiment can refer to the relevant description of the above-mentioned signal measurement method, and achieve the same or corresponding technical effect. To avoid repetition, it will not be repeated here.

It should be noted that the above-mentioned device can also implement the steps in the method shown in Figure 5, or can implement the method executed by the modules shown in Figure 8. The above-mentioned device can also implement the steps in the method shown in Figure 6, or can implement the method executed by the modules shown in Figure 9, which will not be repeated here.

The embodiment of the present application also provides a device, including a processor and a communication interface, the communication interface is coupled to the processor, and the processor is used to run a program or instruction to implement the steps of the method embodiment shown in Figure 5. The device embodiment corresponds to the above-mentioned signal measurement method and embodiment, and each implementation process and implementation method of the above-mentioned method embodiment can be applied to the device embodiment and can achieve the same technical effect.

The embodiment of the present application further provides a device, including a processor and a communication interface, wherein the communication interface is used to send a first signal to a first device; a measurement module is used to measure the distance of the measurement signal sent by the first device to obtain a measurement result; the processor or the communication interface is used to perform a second operation, and the second operation includes: based on time The relevant information and the measurement result calculate at least one of the perception result and the ranging result, the time-related information is the time-related information obtained by the first device measuring the first signal; or the measurement result is sent to the first device or the third device.

Specifically, an embodiment of the present application further provides a device, which is a first device, a second device or a third device. As shown in Figure 12, the device 1200 includes: an antenna 1201, a radio frequency device 1202, a baseband device 1203, a processor 1204 and a memory 1205. The antenna 1201 is connected to the radio frequency device 1202. In the uplink direction, the radio frequency device 1202 receives information through the antenna 1201 and sends the received information to the baseband device 1203 for processing. In the downlink direction, the baseband device 1203 processes the information to be sent and sends it to the radio frequency device 1202. The radio frequency device 1202 processes the received information and sends it out through the antenna 1201.

The perception measurement method in the above embodiment may be implemented in the baseband device 1203, which includes a baseband processor.

The baseband device 1203 may include, for example, at least one baseband board, on which a plurality of chips are arranged, as shown in FIG12 , wherein one of the chips is, for example, a baseband processor, which is connected to the memory 1205 through a bus interface to call a program in the memory 1205 and execute the device operations shown in the above method embodiment.

The device may also include a network interface 1206, which is, for example, a Common Public Radio Interface (CPRI).

Specifically, the device 1200 of the embodiment of the present application also includes: instructions or programs stored in the memory 1205 and executable on the processor 1204. The processor 1204 calls the instructions or programs in the memory 1205 to execute the methods executed by the modules shown in Figures 7, 8 or 9, and achieves the same technical effect. To avoid repetition, it will not be repeated here.

In this embodiment, the above device is taken as an example as the second device.

The radio frequency device 1202 is configured to send a first signal to a first device; send a measurement signal to the first device to perform ranging and obtain a measurement result;

The radio frequency device 1202 or the processor 1204 is configured to perform a second operation, where the second operation includes:

Calculate at least one of a perception result and a ranging result based on time-related information and the measurement result, where the time-related information is time-related information obtained by the first device measuring the first signal; or

Send the measurement result to the first device or the third device.

Optionally, when the second operation includes sending the measurement result to the first device or the third device, the radio frequency device 1202 is further used to:

Sending time information of the first signal to the first device or the third device.

Optionally, the time-related information includes:

The arrival time of the first signal.

Optionally, the measurement signal includes a second signal, and the second signal is used to measure the distance between the first device and the second device.

Optionally, when the measurement signal includes only the second signal, the measurement signal is used for sensing measurement and ranging, and the second signal is a signal sent omnidirectionally, or the second signal is a signal sent using a wide beam. No.; or

In the case where the measurement signal further includes a third signal, the second signal is used for sensing measurement and ranging, the third signal is used for sensing measurement, the beam direction of the second signal is a direction pointing to the second device, and the beam direction of the third signal is a direction corresponding to the area to be sensed; or,

In the case where the measurement signal also includes a third signal and a fourth signal, the third signal is used for perception measurement, the fourth signal is used for perception measurement, the beam directions of the second signal and the third signal are directions pointing to the second device, and the beam direction of the fourth signal is the direction corresponding to the area to be perceived.

Optionally, the measurement result includes ranging related result information; or

The measurement results include: ranging related result information and perception measurement related result information.

Optionally, the ranging related result information includes at least one of the following:

Arrival time information of the measurement signal, and time difference information between the arrival time of the measurement signal and the sending time of the first signal;

or,

The perception measurement related result information includes at least one of the following:

Delay information, distance information, angle information.

Optionally, the arrival time information of the measurement signal includes at least one of the following:

Delay information of the strongest path of the measurement signal;

Delay information of the first arrival path of the measurement signal;

The strength of the measured signal exceeds the delay information of the signal path of the first threshold.

Optionally, the delay information includes at least one of the following:

First arrival time difference information, second arrival time difference information, and third arrival time difference information; wherein the first arrival time difference information includes arrival time difference information of the second signal and the third signal, the second arrival time difference information includes arrival time differences of multiple signal paths of the second signal, and the third arrival time difference information includes arrival time difference information of the third signal and the fourth signal;

or,

The distance information includes at least one of the following:

distance difference information calculated based on the first arrival time difference information;

distance difference information calculated based on the second arrival time difference information;

distance difference information calculated based on the third arrival time difference information;

or,

The angle information includes at least one of the following:

arrival angle information of the second signal;

Arrival angle information of the third signal;

information on the difference in arrival angles between the second signal and the third signal;

Arrival angle information of at least one signal path in the second signal;

information on the difference in arrival angles between two signal paths of the second signal;

Arrival angle information of the fourth signal;

The difference in arrival angle between the third signal and the fourth signal.

Optionally, the distance difference information is used to represent the difference between a baseline distance and a distance sum, where the distance sum is the sum of a distance from the first device to a perceived target and a distance from the second device to a perceived target, and the baseline distance is the distance from the first device to the second device.

Optionally, the arrival time difference information between the second signal and the third signal includes at least one of the following:

Delay difference information between the strongest path of the second signal and the strongest path of the third signal;

Delay difference information between the first path of the second signal and the strongest path of the third signal;

Delay difference information between the strongest path of the second signal and the signal path of the third signal that meets the first condition;

Delay difference information between a first path of the second signal and a signal path of the third signal that meets the first condition;

or,

The arrival time difference information of the third signal and the fourth signal includes at least one of the following:

Delay difference information between the strongest path of the third signal and the strongest path of the fourth signal;

Delay difference information between the first path of the third signal and the strongest path of the fourth signal;

Delay difference information between the strongest path of the third signal and the signal path of the fourth signal that meets the first condition;

The time delay difference information between the first path of the third signal and the signal path of the fourth signal that meets the first condition.

Optionally, the first condition includes at least one of the following:

The strength of the signal path exceeds the second threshold;

The difference between the Doppler of the signal path and the Doppler of the first arrival path exceeds the third threshold or is within the first interval;

The Doppler of the signal path exceeds the fourth threshold or is within the second interval;

The delay of the signal path is within the third interval;

The delay difference between the signal path and the first arrival path is within the fourth interval;

The angle of the signal path is within the fifth interval;

The angular difference between the signal path and the first arrival path is within the sixth interval.

Optionally, the radio frequency device 1202 is further used for:

receiving indication information sent by the first device or the third device, where the indication information is used to indicate at least one of the following:

Signal configuration information of the measurement signal;

signal configuration information of the first signal;

Measurement configuration information.

Optionally, the measurement configuration information includes at least one of the following:

Measured signal resource indication, measurement quantity, measurement result reporting configuration, and measurement auxiliary information.

Optionally, the measurement assistance information includes at least one of the following:

The receiving beam indication of the measurement signal, the position information of the perceived target, the perceived area information, the perceived target The device also includes the angle information of the sensing target relative to the second device, the angle range information of the sensing target relative to the second device, the position information of the first device, the angle information of the first device relative to the second device, the arrival time information of the first signal, the sending time information of the measurement signal, and the time difference information between the sending time of the measurement signal and the arrival time of the first signal.

Optionally, the radio frequency device 1202 is further used for:

receiving a measurement request sent by the first device or the third device, where the measurement request includes at least one of the following:

Perception measurement request, ranging request.

Optionally, the radio frequency device 1202 is further used for:

Sending a measurement response to the first device or the third device, where the measurement response is used to indicate at least one of the following:

Participate in perception measurement and distance measurement.

Optionally, the perception result includes at least one of the following:

Perceive the location information of the target and the distance information associated with the target;

The ranging result includes at least one of the following:

Round trip time RTT information, and distance information between the first device and the second device.

Optionally, the distance information associated with the perceived target includes at least one of the following:

sensing the distance between the target and the first device;

The distance from the sensing target to the second device;

The sum of the distance from the perception target to the first device and the distance from the perception target to the second device.

The above devices can improve the device measurement performance.

It can be understood that the implementation process of each implementation method mentioned in this embodiment can refer to the relevant description of the above-mentioned method embodiment, and achieve the same or corresponding technical effect. To avoid repetition, it will not be repeated here.

It should be noted that the above-mentioned device can also implement the steps in the method shown in Figure 3, or can implement the method executed by the modules shown in Figure 7. The above-mentioned device can also implement the steps in the method shown in Figure 6, or can implement the method executed by the modules shown in Figure 9, which will not be repeated here.

The embodiment of the present application also provides a device, including a processor and a communication interface, the communication interface is coupled to the processor, and the processor is used to run a program or instruction to implement the steps of the method embodiment shown in Figure 6. The device embodiment corresponds to the above-mentioned signal measurement method and embodiment, and each implementation process and implementation method of the above-mentioned method embodiment can be applied to the device embodiment and can achieve the same technical effect.

An embodiment of the present application also provides a device, including a processor and a communication interface, wherein the communication interface is used to receive time-related information sent by a first device, where the time-related information is time-related information obtained by measuring a first signal sent by a second device; receive a measurement result sent by the second device, where the measurement result includes a measurement result obtained by ranging the measurement signal sent by the first device; and the processor is used to calculate at least one of a perception result and a ranging result based on the time-related information and the measurement result.

Specifically, the embodiment of the present application further provides a network side device, which is the third device mentioned above. As shown, the network side device 1300 includes: a processor 1301, a network interface 1302 and a memory 1303. The network interface 1302 is, for example, a common public radio interface (CPRI).

Specifically, the network side device 1300 of the embodiment of the present application also includes: instructions or programs stored in the memory 1303 and executable on the processor 1301. The processor 1301 calls the instructions or programs in the memory 1303 to execute the methods executed by the modules shown in Figure 9 and achieve the same technical effect. To avoid repetition, it will not be repeated here.

The network interface 1302 is configured to receive time-related information sent by the first device, where the time-related information is time-related information obtained by measuring a first signal sent by the second device; and receive a measurement result sent by the second device, where the measurement result includes a measurement result obtained by ranging the measurement signal sent by the first device.

The processor 1301 is configured to calculate at least one of a perception result and a ranging result based on the time-related information and the measurement result.

Optionally, the time-related information includes:

The arrival time of the first signal.

Optionally, the measurement signal includes a second signal, and the second signal is used to measure the distance between the first device and the second device.

Optionally, when the measurement signal includes only the second signal, the measurement signal is used for sensing measurement and ranging, and the second signal is a signal sent omnidirectionally, or the second signal is a signal sent using a wide beam; or,

In the case where the measurement signal further includes a third signal, the second signal is used for sensing measurement and ranging, the third signal is used for sensing measurement, the beam direction of the second signal is a direction pointing to the second device, and the beam direction of the third signal is a direction corresponding to the area to be sensed; or,

In the case where the measurement signal also includes a third signal and a fourth signal, the third signal is used for perception measurement, the fourth signal is used for perception measurement, the beam directions of the second signal and the third signal are directions pointing to the second device, and the beam direction of the fourth signal is the direction corresponding to the area to be perceived.

Optionally, the measurement result includes ranging related result information; or

The measurement results include: ranging related result information and perception measurement related result information.

Optionally, the ranging related result information includes at least one of the following:

Arrival time information of the measurement signal, and time difference information between the arrival time of the measurement signal and the sending time of the first signal;

or,

The perception measurement related result information includes at least one of the following:

Delay information, distance information, angle information.

Optionally, the arrival time information of the measurement signal includes at least one of the following:

Delay information of the strongest path of the measurement signal;

Delay information of the first arrival path of the measurement signal;

The strength of the measured signal exceeds the delay information of the signal path of the first threshold.

Optionally, the delay information includes at least one of the following:

First arrival time difference information, second arrival time difference information, and third arrival time difference information; wherein the first arrival time difference information includes arrival time difference information of the second signal and the third signal, the second arrival time difference information includes arrival time differences of multiple signal paths of the second signal, and the third arrival time difference information includes arrival time difference information of the third signal and the fourth signal;

or,

The distance information includes at least one of the following:

distance difference information calculated based on the first arrival time difference information;

distance difference information calculated based on the second arrival time difference information;

distance difference information calculated based on the third arrival time difference information;

or,

The angle information includes at least one of the following:

Angle of arrival information of the second signal;

Arrival angle information of the third signal;

information on the difference in arrival angles between the second signal and the third signal;

Arrival angle information of at least one signal path in the second signal;

information on the difference in arrival angles between two signal paths of the second signal;

Arrival angle information of the fourth signal;

The difference in arrival angle between the third signal and the fourth signal.

Optionally, the distance difference information is used to represent the difference between a baseline distance and a distance sum, where the distance sum is the sum of a distance from the first device to a perceived target and a distance from the second device to a perceived target, and the baseline distance is the distance from the first device to the second device.

Optionally, the arrival time difference information between the second signal and the third signal includes at least one of the following:

Delay difference information between the strongest path of the second signal and the strongest path of the third signal;

Delay difference information between the first path of the second signal and the strongest path of the third signal;

Delay difference information between the strongest path of the second signal and the signal path of the third signal that meets the first condition;

Delay difference information between a first path of the second signal and a signal path of the third signal that meets the first condition;

or,

The arrival time difference information of the third signal and the fourth signal includes at least one of the following:

Delay difference information between the strongest path of the third signal and the strongest path of the fourth signal;

Delay difference information between the first path of the third signal and the strongest path of the fourth signal;

Delay difference information between the strongest path of the third signal and the signal path of the fourth signal that meets the first condition;

The time delay difference information between the first path of the third signal and the signal path of the fourth signal that meets the first condition.

Optionally, the first condition includes at least one of the following:

The strength of the signal path exceeds the second threshold;

The difference between the Doppler of the signal path and the Doppler of the first arrival path exceeds the third threshold or is within the first interval;

The Doppler of the signal path exceeds the fourth threshold or is within the second interval;

The delay of the signal path is within the third interval;

The delay difference between the signal path and the first arrival path is within the fourth interval;

The angle of the signal path is within the fifth interval;

The angular difference between the signal path and the first arrival path is within the sixth interval.

Optionally, the network interface 1302 is further used for:

receiving time information of the measurement signal sent by the first device, where the time information of the measurement signal includes at least one of the following: sending time information of the measurement signal, and time difference information between the sending time of the measurement signal and the arrival time of the first signal;

The calculating at least one of the perception result and the ranging result based on the time-related information and the measurement result comprises:

At least one of a sensing result and a ranging result is calculated based on the time-related information, the time information of the measurement signal, and the measurement result.

Optionally, the network interface 1302 is further used for:

Sending indication information to the first device or the second device, where the indication information is used to indicate at least one of the following:

Signal configuration information of the measurement signal; signal configuration information of the first signal; measurement configuration information.

Optionally, the measurement configuration information includes at least one of the following:

Measured signal resource indication, measurement quantity, measurement result reporting configuration, and measurement auxiliary information.

Optionally, the measurement assistance information includes at least one of the following:

The receiving beam indication of the measurement signal, the location information of the perceived target, the perceived area information, the angle information of the perceived target relative to the second device, the angle range information of the perceived target relative to the second device, the location information of the first device, the angle information of the first device relative to the second device, the arrival time information of the first signal, the sending time information of the measurement signal, and the time difference information between the sending time of the measurement signal and the arrival time of the first signal.

Optionally, the network interface 1302 is further used for:

Sending a measurement request to the first device or the second device, where the measurement request includes at least one of the following:

Perception measurement request, ranging request.

Optionally, the perception result includes at least one of the following:

Perceive the location information of the target and the distance information associated with the target;

The ranging result includes at least one of the following:

Round trip time RTT information, and distance information between the first device and the second device.

The above devices can improve the device measurement performance.

It can be understood that the implementation process of each implementation method mentioned in this embodiment can refer to the relevant description of the above-mentioned method embodiment, and achieve the same or corresponding technical effect. To avoid repetition, it will not be repeated here.

The present application also provides a readable storage medium, wherein a program or instruction is stored on the readable storage medium. When the program or instruction is executed by the processor, each process of the above-mentioned signal transmission method or signal measurement method embodiment is implemented, and the same technical effect can be achieved. To avoid repetition, it will not be repeated here.

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-transient readable storage medium.

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 signal transmission method or signal measurement method embodiment, and can achieve the same technical effect. To avoid repetition, it will not be repeated here.

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.

The embodiments of the present application further provide a computer program/program product, which is stored in a storage medium. The computer program/program product is executed by at least one processor to implement the various processes of the above-mentioned signal transmission method or signal measurement method embodiments, and can achieve the same technical effect. To avoid repetition, it will not be repeated here.

An embodiment of the present application further provides a wireless communication system, comprising: a first device and a second device, or comprising a first device, a second device and a third device, wherein the first device can be used to execute the steps of the signal transmission method on the first device side provided in the embodiment of the present application, the second device can be used to execute the steps of the signal transmission method on the second device side provided in the embodiment of the present application, and the third device can be used to execute the steps of the signal measurement method provided in the embodiment of the present application.

It should be noted that, in this article, the terms "comprise", "include" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including 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 one..." does not exclude the presence of other identical elements in the process, method, article or device including the element. In addition, it should be pointed out that the scope of the method and device in the embodiment 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 reverse 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.

Through the description of the above implementation methods, 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 hardware platform, and of course, can also be implemented by hardware. The computer software product is stored in a storage medium (such as ROM, RAM, disk, CD, etc.), including several instructions to enable a terminal or a network-side device to execute the methods described in each embodiment of the present application.

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 the present application, ordinary technicians in this field can also make many forms of implementation methods without departing from the purpose of the present application and the scope of protection of the claims, and these implementation methods are all within the protection of the present application.

Claims (46)

A signal transmission method, comprising: The first device measures the first signal sent by the second device to obtain time-related information of the first signal; The first device performs a first operation, where the first operation includes: sending the time-related information to the second device or the third device, and sending a measurement signal to the second device; or, A measurement signal is sent to the second device, and at least one of a perception result and a ranging result is calculated based on the time-related information and the measurement result, wherein the measurement result includes a measurement result obtained by the second device performing ranging on the measurement signal, wherein the measurement signal is used for ranging. The method of claim 1, wherein, in a case where the first operation includes calculating at least one of a perception result and a ranging result based on the time-related information and the measurement result, the method further comprises: The first device receives sending time information of the first signal sent by the second device. The method according to claim 1 or 2, wherein the time-related information comprises: The arrival time of the first signal. The method according to any one of claims 1 to 3, wherein the measurement signal comprises a second signal, and the second signal is used to measure the distance between the first device and the second device. The method according to claim 4, wherein, when the measurement signal includes only the second signal, the measurement signal is used for sensing measurement and ranging, and the second signal is a signal transmitted omnidirectionally, or the second signal is a signal transmitted using a wide beam; or, In the case where the measurement signal further includes a third signal, the second signal is used for sensing measurement and ranging, the third signal is used for sensing measurement, the beam direction of the second signal is a direction pointing to the second device, and the beam direction of the third signal is a direction corresponding to the area to be sensed; or, In the case where the measurement signal also includes a third signal and a fourth signal, the third signal is used for perception measurement, the fourth signal is used for perception measurement, the beam directions of the second signal and the third signal are directions pointing to the second device, and the beam direction of the fourth signal is the direction corresponding to the area to be perceived. The method according to any one of claims 1 to 5, wherein, when the first operation includes calculating at least one of a perception result and a ranging result based on the time-related information and the measurement result, the method further comprises: The first device receives the measurement result sent by the second device. The method according to claim 5, wherein the measurement result includes ranging related result information; or The measurement results include: ranging related result information and perception measurement related result information. The method according to claim 7, wherein the ranging related result information includes at least one of the following: Arrival time information of the measurement signal, and time difference information between the arrival time of the measurement signal and the sending time of the first signal; or, The perception measurement related result information includes at least one of the following: Delay information, distance information, angle information. The method of claim 8, wherein the arrival time information of the measurement signal includes at least one of the following: Delay information of the strongest path of the measurement signal; Delay information of the first arrival path of the measurement signal; The strength of the measured signal exceeds the delay information of the signal path of the first threshold. The method according to claim 8, wherein the delay information includes at least one of the following: First arrival time difference information, second arrival time difference information, and third arrival time difference information; wherein the first arrival time difference information includes arrival time difference information of the second signal and the third signal, the second arrival time difference information includes arrival time differences of multiple signal paths of the second signal, and the third arrival time difference information includes arrival time difference information of the third signal and the fourth signal; or, The distance information includes at least one of the following: distance difference information calculated based on the first arrival time difference information; distance difference information calculated based on the second arrival time difference information; distance difference information calculated based on the third arrival time difference information; or, The angle information includes at least one of the following: Angle of arrival information of the second signal; Arrival angle information of the third signal; information on the difference in arrival angles between the second signal and the third signal; Arrival angle information of at least one signal path in the second signal; information on the difference in arrival angles between two signal paths of the second signal; Arrival angle information of the fourth signal; The difference in arrival angle between the third signal and the fourth signal. The method as claimed in claim 10, wherein the distance difference information is used to represent the difference between a baseline distance and a distance sum, wherein the distance sum is the sum of a distance from the first device to a perceived target and a distance from the second device to a perceived target, and the baseline distance is the distance from the first device to the second device. The method according to claim 10 or 11, wherein the arrival time difference information of the second signal and the third signal includes at least one of the following: Delay difference information between the strongest path of the second signal and the strongest path of the third signal; Delay difference information between the first path of the second signal and the strongest path of the third signal; Delay difference information between the strongest path of the second signal and the signal path of the third signal that meets the first condition; Delay difference information between a first path of the second signal and a signal path of the third signal that meets the first condition; or, The arrival time difference information of the third signal and the fourth signal includes at least one of the following: Delay difference information between the strongest path of the third signal and the strongest path of the fourth signal; Delay difference information between the first path of the third signal and the strongest path of the fourth signal; Delay difference information between the strongest path of the third signal and the signal path of the fourth signal that meets the first condition; The time delay difference information between the first path of the third signal and the signal path of the fourth signal that meets the first condition. The method of claim 12, wherein the first condition includes at least one of the following: The strength of the signal path exceeds the second threshold; The difference between the Doppler of the signal path and the Doppler of the first arrival path exceeds the third threshold or is within the first interval; The Doppler of the signal path exceeds the fourth threshold or is within the second interval; The delay of the signal path is within the third interval; The delay difference between the signal path and the first arrival path is within the fourth interval; The angle of the signal path is within the fifth interval; The angular difference between the signal path and the first arrival path is within the sixth interval. The method according to any one of claims 1 to 13, wherein the method further comprises: The first device sends indication information to the second device, where the indication information is used to indicate at least one of the following: Signal configuration information of the measurement signal; signal configuration information of the first signal; Measurement configuration information. The method according to claim 14, wherein the measurement configuration information includes at least one of the following: Measured signal resource indication, measurement quantity, measurement result reporting configuration, and measurement auxiliary information. The method according to claim 15, wherein the measurement assistance information includes at least one of the following: The receiving beam indication of the measurement signal, the location information of the perceived target, the perceived area information, the angle information of the perceived target relative to the second device, the angle range information of the perceived target relative to the second device, the location information of the first device, the angle information of the first device relative to the second device, the arrival time information of the first signal, the sending time information of the measurement signal, and the time difference information between the sending time of the measurement signal and the arrival time of the first signal. The method according to any one of claims 1 to 16, wherein, when the first operation includes sending the time-related information to the third device, the method further includes: The first device sends time information of the measurement signal to the third device, where the time information of the measurement signal includes at least one of the following: The transmission time information of the measurement signal, and the time difference information between the transmission time of the measurement signal and the arrival time of the first signal. The method according to any one of claims 1 to 17, wherein the method further comprises: The first device sends a measurement request to the second device, where the measurement request includes at least one of the following: Perception measurement request, ranging request. The method of claim 18, wherein the method further comprises: The first device receives a measurement response sent by the second device, where the measurement response is used to indicate at least one of the following: Participate in perception measurement and distance measurement. The method according to any one of claims 1 to 19, wherein the perception result includes at least one of the following: Perceive the location information of the target and the distance information associated with the target; The ranging result includes at least one of the following: Round trip time RTT information, and distance information between the first device and the second device. The method of claim 20, wherein the distance information associated with the perceived target includes at least one of the following: sensing the distance between the target and the first device; The distance from the sensing target to the second device; The sum of the distance from the perception target to the first device and the distance from the perception target to the second device. The method according to any one of claims 5 or 7 to 13, wherein at least one of the first signal, the second signal, the third signal and the fourth signal is the following signal: Communication reference signal, synchronization signal, perception signal or communication data signal; or, At least two of the second signal, the third signal and the fourth signal are time-division multiplexed, frequency-division multiplexed or code-division multiplexed; or, In the case where the second signal is used only for ranging, the second signal is a subset of the third signal; or, When transmission resources of the first signal, the second signal, the third signal and the fourth signal belong to the same frequency band, timing advances TA corresponding to the first signal, the second signal, the third signal and the fourth signal belong to the same timing advance group TAG. A signal transmission method, comprising: The second device sends a first signal to the first device; The second device sends a measurement signal to the first device to perform ranging and obtain a measurement result; The second device performs a second operation, where the second operation includes: Calculate at least one of a perception result and a ranging result based on time-related information and the measurement result, where the time-related information is time-related information obtained by the first device measuring the first signal; or Send the measurement result to the first device or the third device. The method of claim 23, wherein, in the case where the second operation includes sending the measurement result to the first device or the third device, the method further comprises: The second device sends sending time information of the first signal to the first device or the third device. The method according to claim 23 or 24, wherein the time-related information comprises: The arrival time of the first signal. The method of any one of claims 23 to 25, wherein the measurement signal comprises a second signal, the second signal being used to measure the distance between the first device and the second device. The method of claim 26, wherein, when the measurement signal includes only the second signal, the measurement signal is used for sensing measurement and ranging, and the second signal is a signal transmitted omnidirectionally, or the second signal is a signal transmitted using a wide beam; or, In the case where the measurement signal further includes a third signal, the second signal is used for sensing measurement and ranging, the third signal is used for sensing measurement, the beam direction of the second signal is a direction pointing to the second device, and the beam direction of the third signal is a direction corresponding to the area to be sensed; or, In the case where the measurement signal also includes a third signal and a fourth signal, the third signal is used for perception measurement, the fourth signal is used for perception measurement, the beam directions of the second signal and the third signal are directions pointing to the second device, and the beam direction of the fourth signal is the direction corresponding to the area to be perceived. The method of claim 27, wherein the measurement result includes ranging related result information; or The measurement results include: ranging related result information and perception measurement related result information. The method of claim 28, wherein the ranging-related result information includes at least one of the following: Arrival time information of the measurement signal, and time difference information between the arrival time of the measurement signal and the sending time of the first signal; or, The perception measurement related result information includes at least one of the following: Delay information, distance information, angle information. The method of claim 29, wherein the arrival time information of the measurement signal includes at least one of the following: Delay information of the strongest path of the measurement signal; Delay information of the first arrival path of the measurement signal; The strength of the measured signal exceeds the delay information of the signal path of the first threshold. The method of claim 29, wherein the delay information includes at least one of the following: First arrival time difference information, second arrival time difference information, and third arrival time difference information; wherein the first arrival time difference information includes arrival time difference information of the second signal and the third signal, the second arrival time difference information includes arrival time differences of multiple signal paths of the second signal, and the third arrival time difference information includes arrival time difference information of the third signal and the fourth signal; or, The distance information includes at least one of the following: distance difference information calculated based on the first arrival time difference information; distance difference information calculated based on the second arrival time difference information; distance difference information calculated based on the third arrival time difference information; or, The angle information includes at least one of the following: Angle of arrival information of the second signal; Arrival angle information of the third signal; information on the difference in arrival angles between the second signal and the third signal; Arrival angle information of at least one signal path in the second signal; information on the difference in arrival angles between two signal paths of the second signal; Arrival angle information of the fourth signal; The difference in arrival angle between the third signal and the fourth signal. The method according to any one of claims 23 to 31, wherein the method further comprises: The second device receives indication information sent by the first device or the third device, where the indication information is used to indicate at least one of the following: Signal configuration information of the measurement signal; signal configuration information of the first signal; Measurement configuration information. The method according to any one of claims 23 to 32, wherein the method further comprises: The second device receives a measurement request sent by the first device or the third device, where the measurement request includes at least one of the following: Perception measurement request, ranging request. The method according to any one of claims 23 to 33, wherein the perception result includes at least one of the following: Perceive the location information of the target and the distance information associated with the target; The ranging result includes at least one of the following: Round trip time RTT information, and distance information between the first device and the second device. A signal measurement method, comprising: The third device receives the time related information sent by the first device, where the time related information is the time related information obtained by measuring the first signal sent by the second device; The third device receives a measurement result sent by the second device, where the measurement result includes a measurement result obtained by performing ranging on the measurement signal sent by the first device; The third device calculates at least one of a sensing result and a ranging result based on the time-related information and the measurement result. The method of claim 35, wherein the time-related information comprises: The arrival time of the first signal. The method according to claim 35 or 36, wherein the measurement result includes ranging related result information; or The measurement results include: ranging related result information and perception measurement related result information. The method according to any one of claims 35 to 37, wherein the method further comprises: The third device receives time information of the measurement signal sent by the first device, where the time information of the measurement signal includes at least one of the following: sending time information of the measurement signal, and time difference information between the sending time of the measurement signal and the arrival time of the first signal; The third device calculates at least one of a perception result and a ranging result based on the time-related information and the measurement result, including: The third device calculates at least one of a sensing result and a ranging result based on the time-related information, the time information of the measurement signal, and the measurement result. The method according to any one of claims 35 to 38, wherein the method further comprises: The third device sends indication information to the first device or the second device, where the indication information is used to indicate at least one of the following: Signal configuration information of the measurement signal; signal configuration information of the first signal; Measurement configuration information. The method according to any one of claims 35 to 39, wherein the method further comprises: The third device sends a measurement request to the first device or the second device, where the measurement request includes at least one of the following: Perception measurement request, ranging request. The method according to any one of claims 35 to 40, wherein the perception result includes at least one of the following: Perceive the location information of the target and the distance information associated with the target; The ranging result includes at least one of the following: Round trip time RTT information, and distance information between the first device and the second device. A signal transmission device, comprising: A measuring module, configured to measure a first signal sent by a second device to obtain time-related information of the first signal; The execution module is used to execute a first operation, wherein the first operation includes: sending the time-related information to the second device or the third device, and sending a measurement signal to the second device; or, A measurement signal is sent to the second device, and at least one of a perception result and a ranging result is calculated based on the time-related information and the measurement result, wherein the measurement result includes a measurement result obtained by the second device performing ranging on the measurement signal, wherein the measurement signal is used for ranging. A signal transmission device, comprising: A first sending module, configured to send a first signal to a first device; A measuring module, configured to send a measurement signal to the first device to perform distance measurement and obtain a measurement result; An execution module is used to execute a second operation, where the second operation includes: Calculate at least one of a perception result and a ranging result based on time-related information and the measurement result, where the time-related information is time-related information obtained by the first device measuring the first signal; or Send the measurement result to the first device or the third device. A signal measuring device, comprising: A first receiving module is used to receive time related information sent by the first device, where the time related information is time related information obtained by measuring a first signal sent by the second device; A second receiving module, configured to receive a measurement result sent by the second device, where the measurement result includes a measurement result obtained by performing ranging on the measurement signal sent by the first device; A calculation module is used to calculate at least one of a perception result and a ranging result based on the time-related information and the measurement result. A device comprises a processor and a memory, wherein the memory stores a program or instruction that can be run on the processor, wherein the program or instruction, when executed by the processor, implements the steps of the signal transmission method as described in any one of claims 1 to 22, or the program or instruction, when executed by the processor, implements the steps of the signal transmission method as described in any one of claims 23 to 34, or the program or instruction, when executed by the processor, implements the steps of the signal measurement method as described in any one of claims 35 to 41. A readable storage medium storing a program or instruction, wherein the program or instruction, when executed by a processor, implements the steps of the signal transmission method according to any one of claims 1 to 22, or implements the steps of the signal transmission method according to any one of claims 23 to 34, or implements the steps of the signal measurement method according to any one of claims 35 to 41.