CN117999826A

CN117999826A - Positioning method, terminal equipment and positioning equipment

Info

Publication number: CN117999826A
Application number: CN202380012936.3A
Authority: CN
Inventors: 赵铮; 吕玲
Original assignee: Quectel Wireless Solutions Co Ltd
Current assignee: Quectel Wireless Solutions Co Ltd
Priority date: 2023-12-29
Filing date: 2023-12-29
Publication date: 2024-05-07

Abstract

The application provides a positioning method, terminal equipment and positioning equipment. The method comprises the following steps: the method comprises the steps that a terminal device receives a first message sent by a network device, wherein the first message is used for receiving reference signals sent by the network device at different positions by the terminal device; the terminal equipment receives a first reference signal sent by the network equipment at a first position; the terminal equipment receives a second reference signal sent by the network equipment at a second position; the first measurement information of the first reference signal and the second measurement information of the second reference signal are used for positioning the terminal equipment.

Description

Positioning method, terminal equipment and positioning equipment

Technical Field

The present application relates to the field of communications technologies, and in particular, to a method for positioning, a terminal device, and a positioning device.

Background

In positioning a terminal device, a currently common manner is to receive reference signals sent by a plurality of network devices through the terminal device for positioning, or to receive reference signals sent by the terminal device through the plurality of network devices for positioning. The positioning mode has higher requirement on the consistency of hardware performance among a plurality of network devices, and is not beneficial to improving the positioning precision of the terminal device.

Disclosure of Invention

The application provides a positioning method, terminal equipment and positioning equipment. Various aspects of the application are described below.

In a first aspect, a method for positioning is provided, comprising: the method comprises the steps that a terminal device receives a first message sent by a network device, wherein the first message is used for receiving reference signals sent by the network device at different positions by the terminal device; the terminal equipment receives a first reference signal sent by the network equipment at a first position; the terminal equipment receives a second reference signal sent by the network equipment at a second position; the first measurement information of the first reference signal and the second measurement information of the second reference signal are used for positioning the terminal equipment.

In a second aspect, there is provided a method for positioning, comprising: the positioning equipment sends first configuration information to a plurality of base stations, wherein the first configuration information is used for configuring time information of reference signals sent by the plurality of base stations; the positioning equipment receives second configuration information sent by the plurality of base stations, wherein the second configuration information comprises configuration information of reference signals determined by the plurality of base stations based on the time information; the time information of the reference signals sent by the plurality of base stations is the same, and the reference signals sent by the plurality of base stations are used for positioning the terminal equipment.

In a third aspect, there is provided a terminal device comprising: a receiving unit, configured to receive a first message sent by a network device, where the first message is used for a terminal device to receive reference signals sent by the network device at different positions; a receiving unit, configured to receive a first reference signal sent by the network device at a first location, and receive a second reference signal sent by the network device at a second location; the first measurement information of the first reference signal and the second measurement information of the second reference signal are used for positioning the terminal equipment.

In a fourth aspect, there is provided a positioning device comprising: the positioning equipment sends first configuration information to a plurality of base stations, wherein the first configuration information is used for configuring time information of reference signals sent by the plurality of base stations; the positioning equipment receives second configuration information sent by the plurality of base stations, wherein the second configuration information comprises configuration information of reference signals determined by the plurality of base stations based on the time information; the time information of the reference signals sent by the plurality of base stations is the same, and the reference signals sent by the plurality of base stations are used for positioning the terminal equipment.

In a fifth aspect, there is provided a terminal device comprising a processor, a memory and a communication interface, the memory being for storing one or more computer programs, the processor being for invoking the computer programs in the memory to cause the terminal device to perform some or all of the steps in the method of the first aspect.

In a sixth aspect, there is provided a positioning device comprising a processor, a memory and a communication interface, the memory being for storing one or more computer programs, the processor being for invoking the computer programs in the memory to cause the network device to perform some or all of the steps in the method of the second aspect.

In a seventh aspect, a communication system is provided, the system comprising the terminal device and/or the positioning device described above. In another possible design, the system may further include other devices that interact with the terminal device or the positioning device in the solution provided by the embodiment of the present application.

In an eighth aspect, there is provided a computer-readable storage medium storing a computer program that causes a communication device (e.g., a terminal device or a network device) to perform some or all of the steps of the methods of the above aspects.

In a ninth aspect, there is provided a computer program product comprising a non-transitory computer readable storage medium storing a computer program operable to cause a communication device (e.g. a terminal device or a positioning device) to perform part or all of the steps of the method of the above aspects. In some implementations, the computer program product can be a software installation package.

In a tenth aspect, there is provided a chip comprising a memory and a processor from which the processor may call and run a computer program to implement some or all of the steps described in the methods of the above aspects.

The application utilizes the mobility of the terminal equipment, the terminal equipment can receive the reference signal sent by the same network equipment at different positions, or the terminal equipment can send the reference signal to the same network equipment at different positions, and the receiving phase of the reference signal can be used for positioning the terminal equipment. The receiving end involved in the positioning process is one, namely the hardware performance of the receiving end is completely consistent, and the transmitting end is one, namely the hardware performance of the transmitting end is completely consistent, so that the scheme of the embodiment of the application is beneficial to improving the positioning precision.

Drawings

Fig. 1 is a wireless communication system 100 to which embodiments of the present application are applied.

Fig. 2 is a schematic diagram of estimating an incoming wave direction based on an antenna array.

Fig. 3 is a schematic flow chart of a method for positioning provided by an embodiment of the present application.

Fig. 4 is a schematic flow chart of another method for positioning provided by an embodiment of the present application.

Fig. 5 is a schematic block diagram of a terminal device according to an embodiment of the present application.

Fig. 6 is a schematic block diagram of a positioning device provided in an embodiment of the present application.

Fig. 7 is a schematic structural diagram of a communication device according to an embodiment of the present application.

Detailed Description

The technical scheme of the application will be described below with reference to the accompanying drawings.

Fig. 1 is a wireless communication system 100 to which embodiments of the present application are applied. The wireless communication system 100 may include a network device 110 and a terminal device 120. Network device 110 may be a device that communicates with terminal device 120. Network device 110 may provide communication coverage for a particular geographic area and may communicate with terminal devices 120 located within the coverage area.

Fig. 1 illustrates one network device and two terminals by way of example, and the wireless communication system 100 may alternatively include multiple network devices and may include other numbers of terminal devices within the coverage area of each network device, as embodiments of the application are not limited in this regard.

Optionally, the wireless communication system 100 may further include a network controller, a mobility management entity, and other network entities, which are not limited by the embodiment of the present application.

It should be understood that the technical solution of the embodiment of the present application may be applied to various communication systems, for example: fifth generation (5th generation,5G) systems or New Radio (NR), long term evolution (long term evolution, LTE) systems, LTE frequency division duplex (frequency division duplex, FDD) systems, LTE time division duplex (time division duplex, TDD), and the like. The technical scheme provided by the application can also be applied to future communication systems, such as a sixth generation mobile communication system, a satellite communication system and the like.

The terminal device in the embodiments of the present application may also be referred to as a User Equipment (UE), an access terminal, a subscriber unit, a subscriber station, a Mobile Station (MS), a Mobile Terminal (MT), a remote station, a remote terminal, a mobile device, a user terminal, a wireless communication device, a user agent, or a user equipment. The terminal device in the embodiment of the application can be a device for providing voice and/or data connectivity for a user, and can be used for connecting people, things and machines, such as a handheld device with a wireless connection function, a vehicle-mounted device and the like. The terminal device in the embodiments of the present application may be a mobile phone (mobile phone), a tablet (Pad), a notebook, a palm, a Mobile Internet Device (MID), a wearable device, a Virtual Reality (VR) device, an augmented reality (augmented reality, AR) device, a wireless terminal in industrial control (industrial control), a wireless terminal in unmanned (SELF DRIVING), a wireless terminal in teleoperation (remote medical surgery), a wireless terminal in smart grid (SMART GRID), a wireless terminal in transportation security (transportation safety), a wireless terminal in smart city (SMART CITY), a wireless terminal in smart home (smart home), and the like. Alternatively, the UE may be used to act as a base station. For example, the UEs may act as scheduling entities that provide side-uplink signals between UEs in V2X or D2D, etc. For example, a cellular telephone and a car communicate with each other using side-link signals. Communication between the cellular telephone and the smart home device is accomplished without relaying communication signals through the base station.

The network device in the embodiment of the present application may be a device for communicating with a terminal device, and the network device may also be referred to as an access network device or a radio access network device, for example, the network device may be a base station. The network device in the embodiments of the present application may refer to a radio access network (radio access network, RAN) node (or device) that accesses the terminal device to the wireless network. The base station may broadly cover or replace various names in the following, such as: a node B (NodeB), an evolved NodeB (eNB), a next generation NodeB (gNB), a relay station, an access point, a transmission point (TRANSMITTING AND RECEIVING point, TRP), a transmission point (TRANSMITTING POINT, TP), a master MeNB, a secondary SeNB, a multi-mode wireless (MSR) node, a home base station, a network controller, an access node, a radio node, an Access Point (AP), a transmission node, a transceiver node, a baseband unit (BBU), a radio remote unit (Remote Radio Unit, RRU), an active antenna unit (ACTIVE ANTENNA unit, AAU), a radio head (remote radio head, RRH), a Central Unit (CU), a Distributed Unit (DU), a positioning node, and the like. The base station may be a macro base station, a micro base station, a relay node, a donor node, or the like, or a combination thereof. A base station may also refer to a communication module, modem, or chip for placement within the aforementioned device or apparatus. The base station may also be a mobile switching center, a device-to-device D2D, a vehicle-to-everything (V2X), a device that performs a base station function in machine-to-machine (M2M) communication, a network-side device in a 6G network, a device that performs a base station function in a future communication system, or the like. The base stations may support networks of the same or different access technologies. The embodiment of the application does not limit the specific technology and the specific equipment form adopted by the network equipment.

The base station may be fixed or mobile. For example, a helicopter or drone may be configured to act as a mobile base station, and one or more cells may move according to the location of the mobile base station. In other examples, a helicopter or drone may be configured to function as a device to communicate with another base station.

In some deployments, the network device in embodiments of the application may refer to a CU or a DU, or the network device may include a CU and a DU. The gNB may also include an AAU.

Network devices and terminal devices may be deployed on land, including indoors or outdoors, hand-held or vehicle-mounted; the device can be deployed on the water surface; but also on aerial planes, balloons and satellites. In the embodiment of the application, the scene where the network equipment and the terminal equipment are located is not limited.

It should be understood that all or part of the functionality of the communication device in the present application may also be implemented by software functions running on hardware or by virtualized functions instantiated on a platform, such as a cloud platform.

Integrated communication (ISAC) INTEGRATED SENSING AND may refer to combining communication with perception. Sensing is to detect the state of the surrounding environment by some means, such as detecting the position, direction, height, speed and distance of an object, and can also judge the shape of the object and even the action gesture of a person. The narrow sense of communication integration may refer to a communication system having the capabilities of ranging, speed measuring, angle measuring, imaging, target detection, target tracking, target recognition, and the like, and is also referred to as "radar communication integration" in the early days. The generalized sense of general integration refers to a communication system with the ability to perceive all services, networks, users and terminals, and the properties and status of environmental objects, which may be perceptively beyond traditional radars. As the communication spectrum expands from traditional Sub6G to millimeter waves, the reduction in wavelength allows for a continuous increase in perceived capability.

Communication awareness integration has many uses. For example, in order to prevent the problems of secret leakage, collision, noise and the like caused by the flying of the unmanned aerial vehicle, a low-altitude security system needs to be deployed efficiently and at low cost. At present, the unmanned aerial vehicle security market has various detection schemes, but all face a plurality of limitations such as technology, efficiency, cost and the like. The communication perception integrated technology can enable a plurality of base stations needing to be deployed in a low-altitude security area to be changed into radars, and then the computing power resources in the base stations are combined, so that a low-altitude security system is built quickly. As long as the base station signal is reachable, the intrusion unmanned aerial vehicle can be positioned and tracked in real time, and the security system can make subsequent decisions according to the detection result. Conversely, based on imaging, map construction and environment reconstruction capabilities provided by the sense of general integration, the system can be passively to actively send out unmanned aerial vehicles to perform activities such as reconnaissance, logistics sending and the like, and can execute automatic navigation and path planning in an unknown environment according to the multi-station sensing capability. In the scene of the Internet of vehicles, the traffic flow state on the road can be known in real time by the traffic sensing integrated system, so that the efficient coordination of people, vehicles and roads is realized, the traffic safety is ensured, and the running efficiency of the traffic system is improved. The communication and sensing integrated system can sense the traffic flow and the vehicle speed information in real time and in a large range by utilizing the characteristics of high site and wide coverage of the communication base station, and detect the invasion of pedestrians or animal roads at the same time, so that the road supervision is effectively implemented, the traffic safety is ensured, and the traffic efficiency is improved. In the aspect of intelligent home, the following functions can be realized: the light is turned on by people and turned off by people; any electric appliance such as a virtual player piano is switched and controlled through different postures; when a child climbs onto a window balcony or the danger such as falling of the old occurs, a notification is sent to a resident; when a resident leaves home, a person enters, and then security alarm is triggered. The system can judge which family member is through the fine monitoring and identification of gait, and can further analyze the time proportion, activity interval, sleep quality and the like of activities such as watching computer, watching television, sleeping, walking and the like of each family member. In addition, the system can also monitor climate environment, manage public security, and the like. In a climate environment monitoring scene, by means of the ubiquitous characteristic of a wireless network, a base station can sense an integrated signal through sending communication, and the change characteristics of integrated signal intensity and the like are obtained through analysis by combining the characteristic of fading of water molecules, dust and various chemical substances on the wireless signal, so that real-time monitoring of precipitation, pollutant gas emission, air quality and the like are realized. In the aspect of public safety management, the functions such as typhoon early warning, flood early warning and sand storm early warning can be realized through real-time detection of a sensing function, and time is reserved in advance for disaster prevention. In the aspect of health care, the communication perception integrated system can effectively realize health monitoring and management while realizing high-speed communication. The related art has achieved monitoring of respiration and heartbeat of a human body using communication signals. When abnormal respiration and heart rate are found, the early warning information is transmitted back to the user in real time through the communication link, so that the real-time monitoring function is realized. Terahertz can be used for detecting cancerous tissues and decayed teeth and monitoring sweat, tears, saliva, peripheral blood and interstitial fluid.

Perception may include target detection, e.g., locating a target. Positioning may include sensing of data such as distance, speed, and angle of the target.

Because the design and optimization targets of communication and perception are different and the performance evaluation indexes are different, the transmission scheme optimal for communication may not be optimal for perception, and conversely, the transmission scheme optimal for perception may not be optimal for communication. Therefore, to achieve communication awareness integration, it is considered from the bottom how to combine the two functions, so that the performance loss of communication and awareness can be relatively small, and the design goal is achieved as a whole.

In current communication networks, there are a large number of base stations, between which a sufficient cooperation can be made. For example, the base station 1 transmits a sensing signal, and after being reflected by the target object, the sensing signal may be received and calculated by the base station 2. The processing mode can fully utilize the position difference of the base stations to carry out target detection, such as estimation of distance and angle, and the like, but also increases the complexity of resource coordination among the base stations and the resource utilization rate.

In order to ensure that the signal reflected by the target object can be received by the base station 2, rather than causing interference to the base station 2, the reflected signal needs to be as orthogonal as possible to the other signals of the base station 2. When multiple base stations participate in sensing, resource blocks needed to be coordinated and divided at the network side are increased, which reduces the utilization rate of resources and increases the complexity of resource coordination.

When a single station communicates and perceives, the receiving end and the transmitting end share the same clock source, so that the synchronization of the receiving end and the transmitting end has little influence on perception. For multi-station sensing, since transmission and reception of signals are performed by different base stations, if clocks between the base stations are not synchronized, sensing accuracy is greatly affected. For a communication system, a subtle synchronization error between base stations can meet the basic requirements of low-delay and high-reliability communication. However, for sensing integration, the positioning accuracy at least needs to reach the level of meters or even the level of decimeters, and a synchronization error of 1 microsecond between the receiving base station and the transmitting base station can result in a distance sensing error of 300 meters. Therefore, to achieve multi-station awareness, synchronization errors between base stations need to be controlled to nanosecond or even picosecond levels.

In the scene of the sense of general integration, the accuracy requirement for the position detection of the object is higher. For example, in a scene of operating an arbitrary electric appliance, a scene of a virtual piano, and a scene of child climbing and old people falling recognition by different gestures, the positioning requirement on the terminal to be tested is high. And such terminals also have a mobile character, which further increases the difficulty of positioning.

The signal processing modes in the communication system can comprise three modes, namely time domain signal processing, frequency domain signal processing and space domain signal processing. The time domain and the frequency domain are reciprocal relationships, and therefore, the time domain processing and the frequency domain processing are interrelated, while the spatial domain processing is relatively independent. In practical applications, a suitable signal processing mode is often selected according to practical needs.

Time domain processing (time domain processing) refers to using the signal's variation in time axis to obtain desired information, where the time domain processing focuses on the signal's variation over time, typically by observing a waveform of the signal for analysis, and is more useful in describing the signal's dynamics and time series variation. Frequency domain processing (frequency domain processing) refers to using the variation of the signal on the frequency axis to obtain desired information, such as signal frequency, etc. Spatial domain processing (spatial domain processing) describes the spatial characteristics of the signal, and the signals on multiple paths are collected by arranging multiple antenna elements in space, so that multipath effects and interference suffered by the signals in the propagation process are reduced, and the performance of a receiving system is improved. Spatial sampling is typically sampling spatial signals at different points in time.

The processing mode of the space domain signal is described below by taking a linear array as an example.

Referring to fig. 2, the antenna array shown in fig. 2 includes M antennas, and the M antennas may all receive signals sent by the transmitting end. The incoming wave direction can be estimated from the signals received by the two antennas. In the scheme shown in fig. 2, the wave front and the incoming wave direction received by the antenna are perpendicular to each other. According to the far-field electromagnetic wave principle, the received signals at the wave fronts are identical for different antennas. The length at the ellipse in fig. 2 represents the wave path difference between the received signals of antenna 1 and antenna 2. The equation for the wave path difference is as follows:

Where d _D denotes a difference in wavelength, lambda denotes a wavelength, Indicating the phase difference.

In array signal processing, multiple antennas sample the signal at the same time, and this sampling becomes a snapshot. In order to ensure phase correlation between different antennas and that the spatially sampled signal complies with the nyquist's law of spatial sampling, a snapshot of the samples at a time requires a spacing between the antennas of less than half a wavelength, in which case the channels corresponding to adjacent two antennas can be considered coherent.

According to the principle of positioning geometry, current positioning systems determine the position of an object by measuring the distance between the object and a reference point. For example, when a terminal measures signals of different transmitting devices (e.g., transmitters) to perform positioning, transmitting devices at different positions are required to transmit signals. Or when a terminal transmits signals and is positioned by receiving signals from different receiving devices (such as receivers), receiving devices at different positions are required to receive signals. From the above, it is clear that when positioning the terminal device, it is necessary to measure the measurement results between the terminal and at least two reference points.

There are two ways to measure the distance between the object and the reference point. One is to determine the distance between the object and the reference point based on the time difference, and the other is to determine the distance between the object and the reference point based on the phase difference. The two modes are respectively described below.

In locating an object, the distance between the object and the reference point may be measured based on the time of flight of the signal. The positioning is performed by the difference in the transit times of the signals between the object and the different reference points. Time difference ranging is the calculation of the distance by measuring the time difference required for a signal from a different transmitting device to a receiving device or the time difference required from a transmitting device to a different receiving device. The distance difference can be obtained by multiplying the time difference by the speed of light.

Phase difference ranging may calculate a distance based on the phase difference of the propagating signals. When a transmission signal arrives at a receiving device, the signals received by the receiving device have a phase difference due to different distances from different transmitting devices to the receiving device or different distances from the same transmitting device to different receiving devices. By measuring the phase difference, the distance difference between different transmitting devices and receiving devices, or the distance difference between the same transmitting device and different receiving devices, can be deduced. Phase difference ranging is commonly used in radar systems, communication systems, and some sophisticated ranging equipment. In the global positioning system (global positioning system, GPS), the phase difference between the satellite and the receiving device is used to calculate the receiving device-to-satellite distance.

The synchronization requirements for signals between different devices are high, both for phase difference based ranging systems and for time difference based ranging systems. For example, for the scenario that the receiving end receives signals sent by different transmitting ends and performs positioning, clock synchronization of the different transmitting ends is required, and the consistency requirement on hardware performance (such as hardware processing delay) of the different transmitting ends is higher. For another example, for the scenario that different receiving ends receive signals sent by the transmitting end and locate the signals, clock synchronization of different receiving ends is required, and the consistency requirement of the hardware performance (such as hardware processing delay) of the receiving ends is higher.

In order to reduce the requirement on the consistency of the hardware performance of the devices, the embodiment of the application proposes that the mobility of the terminal device is utilized, the terminal device can be configured into different transmitting devices or receiving devices at different positions, for example, the terminal device can receive the reference signals sent by the network device at different positions, or the terminal device can send the reference signals to the network device at different positions, and as the process involves one transmitting device and one receiving device, namely, the hardware performance of the transmitting device is completely consistent, the hardware performance of the receiving device is completely consistent, the errors brought by the hardware of the transmitting device or the receiving device can be eliminated through processing the measurement information of the reference signals, for example, the hardware phase errors of the devices can be eliminated through phase differences, the clock errors of the devices can be eliminated through time differences, and the like. Therefore, the scheme of the embodiment of the application can improve the positioning precision.

The scheme of the embodiment of the present application is described in detail below with reference to fig. 3. Fig. 3 shows a scheme with a terminal device as a receiving end.

Referring to fig. 3, in step S310, a terminal device receives a first reference signal transmitted by a network device at a first location. Or, the network device sends a first reference signal to the terminal device when the terminal device is in the first position.

In step S320, the terminal device receives a second reference signal sent by the network device at a second location. Or, the network device sends a second reference signal to the terminal device when the terminal device is in the second position. Wherein the first position and the second position are different.

The terminal device may be any of the terminal devices described above. In some embodiments, the terminal device may be a terminal device in communication awareness integration. The network device may be any of the network devices described above. In some embodiments, the network device may be a base station.

The first reference signal may be any downlink signal. In some embodiments, the first reference signal may be a Positioning Reference Signal (PRS) REFERENCE SIGNAL. In other embodiments, the first reference signal may be a pilot signal.

The second reference signal may be any downlink signal. In some embodiments, the second reference signal may be a PRS. In other embodiments, the second reference signal may be a pilot signal.

In some embodiments, the first reference signal and the second reference signal may be perceptual signals. For example, the first reference signal and the second reference signal may be bird sound signals that facilitate perception.

The first reference signal and the second reference signal may be reference signals transmitted by the network device at different times. For example, the network device may send a first reference signal to the terminal device when the terminal device is located at the first location; the network device may send a second reference signal to the terminal device when the terminal device is located in the second location. Wherein the first position and the second position are different.

In some implementations, the terminal device receives a first reference signal when the terminal device moves to a first location; the terminal device receives a second reference signal when the terminal device moves to the second location.

In some implementations, the first and second positions may be fixed positions, or the distance between the first and second positions may be a preset distance. For example, no matter where the absolute positions of the first position and the second position are, as long as the distance between the first position and the second position is a preset distance.

Since the reception times corresponding to the different positions are different, the terminal device receiving the first reference signal at the first position may be understood as the terminal device receiving the first reference signal at the first time, and the terminal device receiving the second reference signal at the second position may be understood as the terminal device receiving the second reference signal at the second time. Wherein the first time and the second time are different.

In some implementations, the first reference signal and the second reference signal are the same type of signal. For example, the first reference signal and the second reference signal are reference signals transmitted by the network device to the terminal device at different moments.

In some embodiments, the first measurement information of the first reference signal and the second measurement information of the second reference signal are used for positioning the terminal device. The terminal device may receive a first reference signal sent by the network device at a first location, and measure the first reference signal to obtain first measurement information. The terminal device may receive a second reference signal sent by the network device at the second location, and measure the second reference signal to obtain second measurement information.

The first measurement information and the second measurement information may be phase information or time information. If the first measurement information and the second measurement information are phase information, the terminal device can be positioned by using the phase difference; if the first measurement information and the second measurement information are time information, the terminal device may be located using the time difference. The following description is made for each of these two cases.

In some implementations, the first measurement information and the second measurement information are phase information, e.g., the first measurement information may be a first receive phase and the second measurement information may be a second receive phase. If the receiving phase of the first reference signal is the first receiving phase and the receiving phase of the second reference signal is the second receiving phase, the phase difference between the first receiving phase and the second receiving phase is used for positioning the terminal equipment. The first receiving phase and the second receiving phase reflect the distance difference between the terminal equipment and the network equipment at two positions, and the positioning equipment can realize the positioning of the terminal equipment by utilizing the distance difference. When the terminal device measures the phase, since the first receiving phase and the second receiving phase are measured by the same device (i.e. the terminal device), the phase difference can eliminate the phase error caused by the hardware delay of the terminal device, thereby improving the positioning accuracy.

In some implementations, the first measurement information and the second measurement information are time information, e.g., the first measurement information may be a first time of receipt and the second measurement information may be a second time of receipt. If the receiving time of the first reference signal is the first receiving time and the receiving time of the second reference signal is the second receiving time, the time difference between the first receiving time and the second receiving time is used for positioning the terminal equipment. The first receiving time and the second receiving time reflect the distance difference between the terminal equipment and the network equipment at two positions, and the positioning equipment can realize the positioning of the terminal equipment by utilizing the distance difference. When the terminal device measures the receiving time, since the first receiving time and the second receiving time are measured by the same device (namely the terminal device), the time error caused by the hardware delay of the terminal device can be eliminated by subtracting the receiving time, so that the positioning precision can be improved.

With continued reference to fig. 3, the method shown in fig. 3 further includes step S305 before step S310 and step S320. In step S305, the terminal device receives a first message sent by the network device, where the first message is used for the terminal device to receive, at different positions, reference signals sent by the network device.

After receiving the first message, the terminal device may receive the reference signal sent by the network device at a different location. For example, after receiving the first message, the terminal device receives a first reference signal sent by the network device at a first location and receives a second reference signal sent by the network device at a second location.

By receiving the reference signal at different positions after the first message is received, the terminal equipment can be prevented from blindly receiving the reference signal, and the power consumption of the terminal equipment can be reduced.

In some embodiments, the network device may send the first message to the terminal device again if the positioning device has the first capability. The first capability may specify that the positioning device is capable of positioning the terminal device based on measurement related information for different locations. In this case, the first reference signal and the second reference signal received by the terminal device may be signals that can be used for positioning, so as to reduce blindness of the terminal device receiving the signals.

The embodiment of the application does not specifically limit the type of the first message. In some implementations, the first message may include a first request message for requesting the terminal device to transmit measurement related information for different locations. The measurement information for different locations may refer to measurement information of reference signals received by the terminal device at different locations. And the terminal equipment receives the reference signals sent by the network equipment at different positions under the condition of receiving the first request message. The measurement related information comprises measurement information and/or differences in measurement information. As an example, the first request message is used to request the terminal device to send measurement information for different locations. For example, the first request message is used to request the terminal device to send the first measurement information and the second measurement information. As another example, the first request message is used to request the terminal device to transmit the difference value of the measurement information for different locations. For example, the first request message is used to request the terminal device to transmit the difference between the first measurement information and the second measurement information.

In some implementations, the first message may include first configuration information that may be used to configure the terminal device to transmit measurement related information from different locations. The measurement related information comprises measurement information and/or differences in measurement information. As one example, the first configuration information may be used to configure the terminal device to transmit measurement information from different locations. For example, the first configuration message is used to configure the terminal device to send the first measurement information and the second measurement information. As another example, the first configuration information may be used to configure the terminal device to transmit differences from measurement information at different locations. For example, the first configuration message is used to configure the terminal device to send the difference between the first measurement information and the second measurement information.

In some implementations, the first message may include second configuration information for configuring a set of reference signals for the plurality of base stations, the reference signals in the set of reference signals being used to locate the terminal device. For example, the reference signals in the reference signal group may be used to perform a position calculation once. A location solution may refer to determining location information of the terminal device at the same location.

In some embodiments, if the movement speed of the terminal device is faster, resulting in a longer distance between the first location and the second location, the scattering environments of the first location and the second location differ more, and the multipath environments of the first location and the second location differ, the difference of the measurement information for the two locations cannot be used to locate the terminal device.

In some embodiments, the terminal device may send first indication information to the network device, where the first indication information may be used to indicate whether a difference between the first measurement information and the second measurement information can be used to locate the terminal device. After obtaining the first measurement information and the second measurement information, the terminal device can determine whether the difference value between the first measurement information and the second measurement information can be used for positioning the terminal device. If the difference between the first measurement information and the second measurement information cannot be used for positioning the terminal device, the positioning device can discard the first measurement information and the second measurement information and position the terminal device by adopting other measurement information so as to avoid influencing the positioning accuracy.

In some embodiments, the terminal device may determine whether a difference between the first measurement information and the second measurement information is usable for locating the terminal device based on the first time range. The first time range is used to indicate a time difference of reception moments of two reference signals that can be used for positioning the terminal device. Alternatively, if the time difference between the time of reception of the first reference signal and the time of reception of the second reference signal is less than or equal to the first time range, the difference of the first measurement information and the second measurement information can be used to locate the terminal device. If the reception time of the first reference signal and the reception time of the second reference signal are greater than the first time range, the difference between the first measurement information and the second measurement information cannot be used for locating the terminal device.

In some embodiments, if the time of reception of the first reference signal and the time of reception of the second reference signal are greater than the first time range, it indicates that the first location and the second location are far apart, the channel environments of the measurement signals of the terminal device at the first location and the second location are different, and interference generated by the channel environments is not necessarily eliminated by differencing the measurement information, so that in this case, the difference between the first measurement information and the second measurement information cannot be used for positioning the terminal device.

The determination manner of the first time range in the embodiment of the present application is not particularly limited. For example, the first time range may be determined by the network device. As another example, the first time range may be determined by a network device. The following description is made for each of these two cases.

In some embodiments, the first time range may be determined by the network device. For example, the network device may send second indication information to the terminal device, which may be used to indicate the first time range.

In some implementations, the first time range may be related to a time difference between transmission times of different reference signals transmitted by the network device. The time difference may be, for example, a difference in transmission timings of reference signals that can participate in one-time position calculation. Alternatively, the first time range may be a time difference of transmission moments of two reference signals that can be used for positioning the terminal device. Since the transmission timing and the reception timing of the reference signal correspond, the time difference of the reception timing of the reference signal can be indirectly indicated by the time difference of the transmission timing of the reference signal.

In some implementations, the first time range may be related to a time difference between reception instants at which the terminal device receives different reference signals. The time difference may be, for example, a difference in reception timings of reference signals that can participate in one-time position calculation. Alternatively, the first time range may be a time difference of reception moments of two reference signals that can be used for positioning the terminal device.

In some implementations, the first time range may be associated with a first time. The first time may be a reference time of a first time range, which is a time difference of transmission times of reference signals transmitted by different base stations. The first time can determine the transmission time of the reference signals transmitted by different base stations, so that the receiving time or the receiving time period of the reference signals received by the terminal equipment can be determined. If the reception time of the first reference signal and/or the second reference signal is not the above-mentioned reception time or is not within the above-mentioned reception time period, it means that the difference between the first measurement information and the second measurement information cannot be used for positioning the terminal device. If the reception time of the first reference signal and/or the second reference signal is the above-mentioned reception time or within the above-mentioned reception time period, the difference representing the first measurement information and the second measurement information can be used for positioning the terminal device.

In some embodiments, the first time range may be a time range desired by the terminal device. The terminal device may determine the desired time range based on the current state. For example, the terminal device may determine the first time range based on the movement speed. If the movement speed of the terminal device is high, the first time range may be smaller; the first time range may be larger if the movement speed of the terminal device is slower. As another example, the desired time range may be determined based on the speed of movement and the carrier frequency of the reference signal. The coherence time is known as the inverse of the doppler shift, the coherence time determines the time interval associated with the channel, and the desired time can be determined by the coherence time, so that the desired time range of the terminal device can be Lc/2vf, where c is the speed of light, and L is an empirical factor, which can be determined by the terminal device based on the environment and statistics, depending on the speed of movement and the carrier frequency. The moving speed of the terminal device may be determined by an instrument on the vehicle-mounted device, which is not particularly limited in the embodiment of the present application.

In some embodiments, the terminal device may send second indication information to the network device, which may be used to indicate the first time range, or alternatively, the second indication information may be used to indicate the time range desired by the terminal device. In some implementations, the network device may configure a time instant at which the base station (e.g., one or more base stations) transmits the reference signal based on the second indication information such that the time instant of the reference signal transmitted by the base station is within the first time range.

In some implementations, the positioning device may control the transmission time of the reference signal transmitted by the base station, so that the reference signal transmitted by the base station can be within a reasonable time range. A reasonable time frame may be, for example, a first time frame.

In some embodiments, the first time range may be indicated by the network device to the positioning device, or the first time range may be indicated by the terminal device to the positioning device, or the first time range may be determined by the positioning device itself, or the first time range is a predefined time range in the protocol, which is not particularly limited in the embodiments of the present application.

According to the application, the mobile terminal equipment transmits or receives at different positions to replace different transmitting equipment or different receiving equipment in the positioning system, so that the effect of multi-point transmission or multi-point reception is obtained, and the triangular geometric positioning is facilitated. When the terminal equipment moves, the position of the terminal equipment changes, and three points are obtained by adding the two positions of the terminal equipment and the position of the base station, wherein the three points can be used as the points for performing triangulation or geometric positioning, and two points with unknown positions are contained in the three points, namely, the two positions of the terminal equipment are unknown. In the current positioning system, terminal equipment performs reference signal interaction with multiple (such as two or more) base stations at the same time, the multiple base stations and the terminal equipment form multiple points for performing triangular positioning or geometric positioning, only the position of the terminal equipment in the multiple points is unknown, and the position of the terminal equipment can be obtained by solving an equation.

Although in the present application the terminal device has two unknown positions, in practice the two positions can be estimated. In an actual system, in order to improve positioning accuracy, a plurality of base stations may participate in positioning. More information can be obtained by a plurality of base stations participating in positioning, so that the position information of the terminal equipment at two positions is obtained.

For example, assuming that the two positions of the terminal device are (x ₁,y₁) and (x ₂,y₂), respectively, the terminal device measures the phases of the reference signals transmitted by the base station n at the two positions, respectively, to obtain the phase difference ω _n. Assuming that the position coordinate of the base station n is (a _n,b_n), the distance difference between the base station n and two positions can be calculated based on the position coordinate, or can be calculated through phase difference, and assuming that the distance differences calculated in the two modes are equal, the following formula is provided:

And (3) making:

When the number of base stations is greater than or equal to 4, the location of the terminal device can be estimated by solving the following equation.

Wherein N is greater than or equal to 4.

In some embodiments, if the moments at which the reference signals are transmitted by the plurality of base stations are different, that is, different base stations transmit the reference signals to the terminal device when the terminal device is in different locations. The location of the terminal device is changed for different base stations when the reference signal is transmitted. In this case, the above formula is modified into the following formula:

As can be seen from the above formula, although the number of base stations and the number of equations are increased, the number of unknowns is increased, which is disadvantageous in determining the location of the terminal device. Therefore, it is necessary to limit the time of the reference signal transmitted by each base station so that the base station transmits the reference signal as much as possible in the same time.

When the positioning device is to support reporting of the difference value of the measurement information of the terminal device at different positions, the positioning device is to send information supporting measurement difference value positioning of the terminal device at different positions to each base station, and inform the PRS of time required to be configured and time offset. I.e., the time offset ranges in which different base stations transmit PRSs. The position of the terminal device is less changed within a certain time offset range, and the position of the terminal device is considered to be unchanged, so that even if the measurement is performed from different base stations, the terminal device can be considered to be at the same position, and no new unknown quantity is introduced when the position settlement is performed.

The scheme of the embodiment of the present application will be described in detail with reference to fig. 4. It should be noted that, the scheme shown in fig. 4 may be used alone or in combination with the scheme shown in fig. 3, which is not particularly limited in the embodiment of the present application.

Referring to fig. 4, in step S410, the positioning apparatus transmits first configuration information to a plurality of base stations. The first configuration information may be used to configure time information of reference signals transmitted by a plurality of base stations. The time information may be a time range or may be a transmission time. The transmission time may include one or more transmission times. The reference signals transmitted by the plurality of base stations may be used to locate the terminal device.

In some embodiments, the positioning device may send the first configuration information to each of the plurality of base stations. The first configuration information sent by the positioning device to the plurality of base stations may be the same, or, in other words, the time information of the reference signals configured by the positioning device to different base stations may be the same. In other words, the time information of the reference signals transmitted by the plurality of base stations is the same.

In some embodiments, the positioning device sending the first configuration information to the plurality of base stations may refer to the positioning device sending a configuration request message to the plurality of base stations, where the configuration request message is used to request that reference signals sent by the plurality of base stations be configured in the same time range. For example, the positioning device only indicates to the plurality of base stations that the reference signal needs to be transmitted within the same time range, but does not specifically indicate the time range and/or the transmission time of the reference signal, and the plurality of base stations can negotiate to determine the time range and/or the transmission time of the reference signal, so that the flexibility of transmitting the reference signal can be increased.

The plurality of base stations in the embodiment of the present application may be base stations in one base station group.

In step S420, the positioning device receives second configuration information sent by the plurality of base stations. The second configuration information includes configuration information of reference signals determined by the plurality of base stations based on the time information. The base station may configure a transmission time of the reference signal at a time or in a time range of the first configuration information configuration.

In some embodiments, the plurality of base stations may each transmit the second configuration information to the positioning device. The second configuration information sent by the plurality of base stations to the positioning device may be the same or different.

In some embodiments, the configuration information of the reference signal may include a transmission time of the reference signal or a transmission time range of the reference signal.

In some embodiments, the second configuration information may include information about a transmission time of the reference signal. For example, after receiving the first configuration information sent by the positioning device, the base station may determine the sending time of the reference signal based on the first configuration information. In addition, the base station may also transmit information about the transmission time of the reference signal to the positioning device.

In some embodiments, the same time information of reference signals transmitted by multiple base stations may refer to the same time of reference signals transmitted by multiple base stations. For example, multiple base stations may transmit reference signals to a terminal device at the same time. In other embodiments, the time information of the reference signals sent by the plurality of base stations may refer to the time of the reference signals sent by the plurality of base stations being within a preset time range. For example, the plurality of base stations may transmit reference signals to the terminal device within the preset time range. In this case, the transmission timings of the reference signals by the plurality of base stations may be the same or different, as long as the transmission timings of the reference signals by the plurality of base stations are within a predetermined time range.

In some embodiments, the preset time range may be determined based on the first time instant and the first offset. The first offset may be an offset for a first time. The first time may be a start time of the preset time range, or may be an end time of the preset time range, or may be any time within the preset time range.

In some implementations, the preset time range may be obtained by taking the first time as a reference and then performing the offset of the first offset amount.

In some embodiments, the first offset may be a predefined offset in the protocol, or the first offset may be indicated by the network device to the location device, or the first offset may be indicated by the terminal device to the location device.

In some embodiments, after receiving the second configuration information sent by the base station, the positioning device may determine whether the second configuration information is configuration information determined based on the first configuration information. For example, the positioning device may determine whether the transmission timing of the reference signal configured in the second configuration information satisfies the time requirement configured by the first configuration information. The positioning device may require the base station to retransmit the configuration information if the second configuration information is not the configuration information determined based on the first configuration information.

In some embodiments, multiple base stations may send response messages to the positioning device. The response message may be used to indicate whether the second configuration information is determined based on the first configuration information. The positioning device may determine, based on the response message, whether the second configuration information is determined based on the first configuration information.

The positioning device in the application embodiment may be a unit having a positioning resolving function. The positioning device may be a positioning server, a positioning management function (location management function, LMF), a serving cell, a positioning reference unit or a terminal device.

The method embodiments of the present application are described above in detail with reference to fig. 1 to 4, and the apparatus embodiments of the present application are described below in detail with reference to fig. 5 to 7. It is to be understood that the description of the method embodiments corresponds to the description of the device embodiments, and that parts not described in detail can therefore be seen in the preceding method embodiments.

Fig. 5 is a schematic block diagram of a terminal device according to an embodiment of the present application. The terminal device 500 shown in fig. 5 may be any of the terminal devices described above. The terminal device 500 may include a receiving unit 510 and a transmitting unit 520.

A receiving unit 510, configured to receive a first message sent by a network device, where the first message is used for a terminal device to receive, at different positions, a reference signal sent by the network device.

A transmitting unit 520, configured to receive, at a first location, a first reference signal sent by the network device.

The transmitting unit 520 is further configured to receive, at a second location, a second reference signal sent by the network device.

The first measurement information of the first reference signal and the second measurement information of the second reference signal are used for positioning the terminal equipment.

In some possible implementations, the sending unit is further configured to: and sending first information to the network equipment, wherein the first information comprises a difference value between the first measurement information and the second measurement information, and the difference value is used for positioning the terminal equipment.

In some possible implementations, the difference includes one or more of the following: a difference between a first received phase of the first reference signal and a second received phase of the second reference signal; a difference between a first reception time of the first reference signal and a second reception time of the second reference signal.

In some possible implementations, the first message satisfies one or more of: the first message comprises a first request message, and the first request message is used for requesting the terminal equipment to send measurement information aiming at different positions and/or difference values of the measurement information aiming at the different positions; the first message comprises first configuration information, and the first configuration information is used for configuring the terminal equipment to send measurement information from different positions and/or difference values of the measurement information from different positions; the first message includes second configuration information, where the second configuration information is used to configure a reference signal group for a plurality of base stations, and reference signals in the reference signal group are used to locate the terminal device.

In some possible implementations, the sending unit is further configured to: and sending first indication information to the network equipment, wherein the first indication information is used for indicating whether the difference value between the first measurement information and the second measurement information can be used for positioning the terminal equipment.

In some possible implementations, the terminal device further includes a determining unit configured to determine whether a difference between the first measurement information and the second measurement information can be used to locate the terminal device, based on a first time range, where the first time range is used to indicate a time difference between receiving moments of two reference signals that can be used to locate the terminal device.

In some possible implementations, the first time range is determined by the network device, or the first time range may be a predefined time range in a protocol.

In some possible implementations, the receiving unit is further configured to: and receiving second indication information sent by the network equipment, wherein the second indication information is used for indicating the first time range.

In some possible implementations, the first time range is related to one or more of: the time difference between the sending moments of different reference signals sent by the network equipment; the time difference between the receiving moments of the different reference signals received by the terminal equipment; the first time is a reference time of the first time range, and the first time range is a time difference of transmission time of reference signals transmitted by different base stations.

In some possible implementations, the first time range is a time range desired by the terminal device.

In some possible implementations, the sending unit is further configured to: and sending third indication information to the network equipment, wherein the third indication information is used for indicating the first time range.

In some possible implementations, the desired time range of the terminal device is determined based on the formula Lc/2vf, where c is the speed of light, L is an empirical factor, v is the speed of movement of the terminal device, and f is the carrier frequency of the reference signal.

In an alternative embodiment, the receiving unit 510 and the transmitting unit 520 may be transceivers 730, and the determining unit may be the processor 710. The terminal device 500 may also include a memory 720, as shown in particular in fig. 7.

Fig. 6 is a schematic block diagram of a positioning device provided in an embodiment of the present application. The positioning device 600 shown in fig. 6 may be any of the positioning devices described above. The positioning device 600 may include a transmitting unit 610 and a receiving unit 620.

A transmitting unit 610, configured to transmit first configuration information to a plurality of base stations, where the first configuration information is used to configure time information of reference signals transmitted by the plurality of base stations.

And a receiving unit 620, configured to receive second configuration information sent by the plurality of base stations, where the second configuration information includes configuration information of reference signals determined by the plurality of base stations based on the time information.

The time information of the reference signals sent by the plurality of base stations is the same, and the reference signals sent by the plurality of base stations are used for positioning the terminal equipment.

In some possible implementations, the time information of the reference signals sent by the plurality of base stations is the same and includes at least one of: the reference signals sent by the plurality of base stations have the same time; the moments of the reference signals sent by the plurality of base stations are within a preset time range.

In some possible implementations, the preset time range is determined based on the first time instant and the first offset.

In some possible implementations, the positioning device further includes a determining unit configured to: determining whether the second configuration information is configuration information determined based on the first configuration information.

In some possible implementations, the receiving unit is further configured to: and receiving response messages sent by the plurality of base stations, wherein the response messages are used for indicating whether the second configuration information is determined based on the first configuration information.

In some possible implementations, the sending unit is configured to: and sending configuration request messages to a plurality of base stations, wherein the configuration request messages are used for requesting the reference signals sent by the plurality of base stations to be configured in the same time range.

In an alternative embodiment, the transmitting unit 610 and the receiving unit 620 may be transceivers 730, and the determining unit may be a processor 710. The positioning device 900 may also include a memory 720, as shown in particular in fig. 7.

Fig. 7 is a schematic structural diagram of a communication apparatus according to an embodiment of the present application. The dashed lines in fig. 7 indicate that the unit or module is optional. The apparatus 700 may be used to implement the methods described in the method embodiments above. The apparatus 700 may be a chip or a communication device. The communication device may be any of the communication devices described above. The communication device may be, for example, a terminal device or a positioning device.

The apparatus 700 may include one or more processors 710. The processor 710 may support the apparatus 700 to implement the methods described in the method embodiments above. The processor 710 may be a general purpose processor or a special purpose processor. For example, the processor may be a central processing unit (central processing unit, CPU). Or the processor may be another general purpose processor, a digital signal processor (DIGITAL SIGNAL processor), an Application SPECIFIC INTEGRATED Circuit (ASIC), an off-the-shelf programmable gate array (field programmable GATE ARRAY, FPGA) or other programmable logic device, a discrete gate or transistor logic device, discrete hardware components, or the like. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.

The apparatus 700 may also include one or more memories 720. The memory 720 has stored thereon a program that is executable by the processor 710 to cause the processor 710 to perform the method described in the method embodiments above. The memory 720 may be separate from the processor 710 or may be integrated into the processor 710.

The apparatus 700 may also include a transceiver 730. Processor 710 may communicate with other devices or chips through transceiver 730. For example, the processor 710 may transmit and receive data to and from other devices or chips through the transceiver 730.

The embodiment of the application also provides a computer readable storage medium for storing a program. The computer-readable storage medium is applicable to the communication device provided by the embodiments of the present application, and the program causes a computer to execute the method performed by the communication device in the respective embodiments of the present application.

The embodiment of the application also provides a computer program product. The computer program product includes a program. The computer program product is applicable to the communication device provided by the embodiments of the present application, and the program causes a computer to execute the method performed by the communication device in the respective embodiments of the present application.

The embodiment of the application also provides a computer program. The computer program is applicable to the communication device provided by the embodiments of the present application, and causes a computer to execute the method executed by the communication device in the respective embodiments of the present application.

It should be understood that the terms "system" and "network" may be used interchangeably herein. In addition, the terminology used herein is for the purpose of describing particular embodiments of the application only and is not intended to be limiting of the application. The terms "first," "second," "third," and "fourth" and the like in the description and in the claims and drawings are used for distinguishing between different objects and not necessarily for describing a particular sequential or chronological order. Furthermore, the terms "comprise" and "have," as well as any variations thereof, are intended to cover a non-exclusive inclusion.

In the embodiment of the present application, the "indication" may be a direct indication, an indirect indication, or an indication having an association relationship. For example, a indicates B, which may mean that a indicates B directly, e.g., B may be obtained by a; it may also indicate that a indicates B indirectly, e.g. a indicates C, B may be obtained by C; it may also be indicated that there is an association between a and B.

In embodiments of the application, references to "comprising" may refer to either direct or indirect inclusion. Alternatively, references to "comprising" in embodiments of the present application may be replaced with "indicating" or "for determining". For example, a includes B, which may be replaced with a indicating B, or a used to determine B.

In the embodiment of the application, "B corresponding to A" means that B is associated with A, from which B can be determined. It should also be understood that determining B from a does not mean determining B from a alone, but may also determine B from a and/or other information.

In the embodiment of the present application, the term "corresponding" may indicate that there is a direct correspondence or an indirect correspondence between the two, or may indicate that there is an association between the two, or may indicate a relationship between the two and the indicated, configured, etc.

In the embodiment of the present application, the "pre-defining" or "pre-configuring" may be implemented by pre-storing corresponding codes, tables or other manners that may be used to indicate relevant information in devices (including, for example, terminal devices and network devices), and the present application is not limited to the specific implementation manner thereof. Such as predefined may refer to what is defined in the protocol.

In the embodiment of the present application, the "protocol" may refer to a standard protocol in the communication field, for example, may include an LTE protocol, an NR protocol, and related protocols applied in a future communication system, which is not limited in the present application.

In the embodiment of the present application, the term "and/or" is merely an association relationship describing the association object, which indicates that three relationships may exist, for example, a and/or B may indicate: a exists alone, A and B exist together, and B exists alone. In addition, the character "/" herein generally indicates that the front and rear associated objects are an "or" relationship.

In various embodiments of the present application, the sequence number of each process does not mean the sequence of execution, and the execution sequence of each process should be determined by its functions and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present application.

In the several embodiments provided by the present application, it should be understood that the disclosed systems, devices, and methods may be implemented in other manners. For example, the apparatus embodiments described above are merely illustrative, e.g., the division of the units is merely a logical function division, and there may be additional divisions when actually implemented, e.g., multiple units or components may be combined or integrated into another system, or some features may be omitted or not performed. Alternatively, the coupling or direct coupling or communication connection shown or discussed with each other may be an indirect coupling or communication connection via some interfaces, devices or units, which may be in electrical, mechanical or other form.

The units described as separate units may or may not be physically separate, and units shown as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

In addition, each functional unit in the embodiments of the present application may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit.

In the above embodiments, it may be implemented in whole or in part by software, hardware, firmware, or any combination thereof. When implemented in software, may be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When loaded and executed on a computer, produces a flow or function in accordance with embodiments of the present application, in whole or in part. The computer may be a general purpose computer, a special purpose computer, a computer network, or other programmable apparatus. The computer instructions may be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another computer-readable storage medium, for example, the computer instructions may be transmitted from one website, computer, server, or data center to another website, computer, server, or data center by a wired (e.g., coaxial cable, fiber optic, digital subscriber line (digital subscriber line, DSL)) or wireless (e.g., infrared, wireless, microwave, etc.). The computer readable storage medium may be any available medium that can be read by a computer or a data storage device such as a server, data center, etc. that contains an integration of one or more available media. The usable medium may be a magnetic medium (e.g., floppy disk, hard disk, magnetic tape), an optical medium (e.g., digital versatile disk (digital video disc, DVD)), or a semiconductor medium (e.g., solid State Disk (SSD)), etc.

The foregoing is merely illustrative of the present application, and the present application is not limited thereto, and any person skilled in the art will readily recognize that variations or substitutions are within the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

1. A method for positioning, comprising:

The method comprises the steps that a terminal device receives a first message sent by a network device, wherein the first message is used for receiving reference signals sent by the network device at different positions by the terminal device;

the terminal equipment receives a first reference signal sent by the network equipment at a first position;

the terminal equipment receives a second reference signal sent by the network equipment at a second position;

2. The method according to claim 1, wherein the method further comprises:

The terminal equipment sends first information to the network equipment, wherein the first information comprises a difference value between the first measurement information and the second measurement information, and the difference value is used for positioning the terminal equipment.

3. The method of claim 1, wherein the difference comprises one or more of:

A difference between a first received phase of the first reference signal and a second received phase of the second reference signal;

A difference between a first reception time of the first reference signal and a second reception time of the second reference signal.

4. A method according to any one of claims 1-3, wherein the first message satisfies one or more of the following:

The first message comprises a first request message, and the first request message is used for requesting the terminal equipment to send measurement information aiming at different positions and/or difference values of the measurement information aiming at the different positions;

the first message comprises first configuration information, and the first configuration information is used for configuring the terminal equipment to send measurement information from different positions and/or difference values of the measurement information from different positions;

the first message includes second configuration information, where the second configuration information is used to configure a reference signal group for a plurality of base stations, and reference signals in the reference signal group are used to locate the terminal device.

5. The method according to any one of claims 1-4, further comprising:

The terminal equipment sends first indication information to the network equipment, wherein the first indication information is used for indicating whether the difference value between the first measurement information and the second measurement information can be used for positioning the terminal equipment.

6. The method of claim 5, wherein the method further comprises:

The terminal device determines whether a difference value between the first measurement information and the second measurement information can be used for positioning the terminal device based on a first time range, wherein the first time range is used for indicating a time difference of receiving moments of two reference signals which can be used for positioning the terminal device.

7. The method of claim 6, wherein the first time range is determined by the network device or the first time range is a protocol predefined range.

8. The method of claim 7, wherein the method further comprises:

The terminal equipment receives second indication information sent by the network equipment, wherein the second indication information is used for indicating the first time range.

9. The method of claim 7, wherein the first time range is related to one or more of:

the time difference between the sending moments of different reference signals sent by the network equipment;

The time difference between the receiving moments of the different reference signals received by the terminal equipment;

the first time is a reference time of the first time range, and the first time range is a time difference of transmission time of reference signals transmitted by different base stations.

10. The method of claim 6, wherein the first time range is a time range desired by the terminal device.

11. The method according to claim 10, wherein the method further comprises:

And the terminal equipment sends third indication information to the network equipment, wherein the third indication information is used for indicating the first time range.

12. The method according to claim 10 or 11, characterized in that the desired time range of the terminal device is determined based on the formula Lc/2vf, where c is the speed of light, L is an empirical factor, v is the speed of movement of the terminal device, and f is the carrier frequency of the reference signal.

13. A method for positioning, comprising:

the positioning equipment sends first configuration information to a plurality of base stations, wherein the first configuration information is used for configuring time information of reference signals sent by the plurality of base stations;

the positioning equipment receives second configuration information sent by the plurality of base stations, wherein the second configuration information comprises configuration information of reference signals determined by the plurality of base stations based on the time information;

14. The method of claim 13, wherein the same time information of the reference signals transmitted by the plurality of base stations comprises at least one of:

The reference signals sent by the plurality of base stations have the same time;

the moments of the reference signals sent by the plurality of base stations are within a preset time range.

15. The method of claim 14, wherein the predetermined time range is determined based on a first time and a first offset.

16. The method according to any one of claims 13-15, further comprising:

The positioning device determines whether the second configuration information is configuration information determined based on the first configuration information.

17. The method according to any one of claims 13-16, further comprising:

The positioning device receives response messages sent by the plurality of base stations, wherein the response messages are used for indicating whether the second configuration information is determined based on the first configuration information or not.

18. The method according to any of claims 13-17, wherein the positioning device sending first configuration information to a plurality of base stations, comprising:

the positioning device sends configuration request messages to a plurality of base stations, wherein the configuration request messages are used for requesting the reference signals sent by the plurality of base stations to be configured in the same time range.