CN117411519A - Positioning measurement method and communication device - Google Patents

Abstract

The embodiment of the application provides a communication method and a communication device, wherein the method comprises the following steps: the transmitting end generates a ranging frame and adopts beam scanning to transmit the ranging frame, so that the mode can provide space diversity, increase the probability of separation of a head path and an interference path and improve the positioning accuracy.

Description

Positioning measurement method and communication device

Technical Field

The embodiment of the application relates to the field of communication, in particular to a positioning measurement method and a communication device.

Background

Wireless communication scenarios, particularly indoor positioning scenarios, are typically multipath scenarios, ranging/positioning accuracy is limited by multipath resolution, which can lead to large positioning errors if the head path is interfered by the neighboring path.

How to improve the accuracy of ranging/positioning is a problem to be solved.

Disclosure of Invention

The embodiment of the application provides a positioning measurement method and a communication device.

In a first aspect, a positioning measurement method is provided, which may include: the transmitting end generates a ranging frame; and the transmitting end transmits the ranging frame in a beam scanning mode.

According to the method provided by the embodiment, the transmitting end adopts beam scanning to transmit the ranging frame, so that space diversity is provided, the probability of separation of the head path and the interference path can be increased, and the positioning accuracy is improved.

In a second aspect, a positioning measurement method is provided, which may include: the receiving end receives and analyzes the ranging frame.

In a third aspect, there is provided a communication apparatus comprising: the communication device has the functionality to implement any of the first aspect, the second aspect, or the method in any of the possible implementations of these aspects. The functions may be implemented by hardware, or may be implemented by hardware executing corresponding software. The hardware or software includes one or more units corresponding to the above functions.

In a fourth aspect, a communication device is provided that includes a processor and a memory. Optionally, a transceiver may also be included. Wherein the memory is for storing a computer program and the processor is for invoking and running the computer program stored in the memory and controlling the transceiver to transceive signals to cause the communication device to perform the method as in any one of the first aspect, the second aspect, or any one of the possible implementations of these aspects.

In a fifth aspect, there is provided a communication device comprising a processor and a communication interface for receiving data and/or information and transmitting the received data and/or information to the processor, the processor processing the data and/or information, and the communication interface further being for outputting the data and/or information after processing by the processor, such that the method as in any one of the first aspect, the second aspect, or any one of the possible implementations of these aspects is performed.

In a sixth aspect, there is provided a computer readable storage medium having stored therein computer instructions which, when run on a computer, cause the method as in any one of the first to third aspects, or any one of the possible implementations of these aspects, to be performed.

A seventh aspect provides a computer program product comprising computer program code which, when run on a computer, causes the method as in any one of the first to third aspects, or any one of the possible implementations of any one of these aspects, to be performed.

An eighth aspect provides a wireless communication system comprising the transmitting end in the first aspect and/or the receiving end in the second aspect.

Drawings

Fig. 1 is a schematic diagram of a communication system 100 suitable for use in embodiments of the present application.

Fig. 2 is a diagram of a format of a ranging PPDU.

Fig. 3 is a schematic diagram of a real head diameter and a superimposed head diameter.

Fig. 4 shows a schematic diagram of a method 200 for positioning measurement according to an embodiment of the present application.

Fig. 5 shows an example of transceiving of a ranging frame.

Fig. 6 shows a procedure of generating and transmitting a ranging frame at a transmitting end.

Fig. 7 is a schematic diagram of a method for positioning measurement according to an embodiment of the present application.

Fig. 8 is a schematic block diagram of a communication device provided in an embodiment of the present application.

Fig. 9 is a schematic block diagram of a communication device provided in an embodiment of the present application.

Detailed Description

The technical solutions in the present application will be described below with reference to the accompanying drawings.

The technical scheme provided by the embodiment of the application can be suitable for a wireless local area network (wireless local area network, WLAN) scene, for example, can support IEEE 802.11 related standards, such as 802.11a/b/g standards, 802.11n standards, 802.11ac standards, 802.11ax standards, IEEE 802.11ax next generation Wi-Fi protocols, such as 802.11be, wi-Fi 7, extremely high throughput (extremely high throughput, EHT), 802.11ad, 802.11ay or 802.11bf, further such as 802.11be next generation, wi-Fi 8 and the like, and can also be applied to Ultra Wideband (UWB) based wireless personal area network systems and sensing (sensing) systems. For example, 802.11bf includes two broad classes of standards, low frequency (sub 7 GHz) and high frequency (60 GHz). The sub7GHz implementation mode mainly depends on the standards of 802.11ac, 802.11ax, 802.11be, the next generation and the like, and the 60GHz implementation mode mainly depends on the standards of 802.11ad, 802.11ay, the next generation and the like.

Although the embodiments of the present application are described primarily with respect to deploying WLAN networks, and in particular networks employing the IEEE 802.11 system standard, it will be readily appreciated by those skilled in the art that aspects of the embodiments of the present application may be extended to other networks employing various standards or protocols, such as, for example, high performance wireless local area networks (high performance radio local area network, HIPERLAN), wireless wide area networks (wireless wide area network, WWAN), wireless personal area networks (wireless personal area network, WPAN), or other now known or later developed networks. Accordingly, the various aspects provided by the embodiments of the present application may be applicable to any suitable wireless network, regardless of the coverage area and wireless access protocol used.

The technical solution of the embodiment of the application may also be applied to various communication systems, for example: WLAN communication systems, wireless fidelity (wireless fidelity, wi-Fi) systems, 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), universal mobile telecommunications system (universal mobile telecommunication system, UMTS), worldwide interoperability for microwave access (worldwide interoperability for microwave access, wiMAX) communication systems, fifth generation (5th generation,5G) systems or New Radio (NR) systems, future sixth generation (6th generation,6G) systems, internet of things (internet of things, ioT) networks or wireless local area network systems such as internet of vehicles (V2X).

The above-mentioned communication system to which the present application is applied is merely illustrative, and the communication system to which the present application is applied is not limited thereto, and is generally described herein, and will not be described in detail.

Fig. 1 is a schematic diagram of a system architecture and an apparatus provided in an embodiment of the present application. Fig. 1 (a) is an example of a system architecture 100 suitable for use in embodiments of the present application. As shown in fig. 1 (a), the system 100 includes an access point AP 110 and an access point AP 120, and optionally, the system may further include stations STA 111, STA 112, STA 113 associated with the access point AP 110, and stations STA 121, STA 122, STA 123 associated with the access point AP 2. The access point AP 110, the stations STA 111, STA 112, STA 113 form a basic service set (basic service set, BSS) 1, and the access point AP 120, STA 121, STA 122, STA 123 form a BSS 2.

As an example, the system architecture shown in fig. 1 (a) may be applied to the internet of things industry, the internet of vehicles industry, banking industry, business offices, stadium exhibition halls, concert halls, hotel rooms, dormitories, wards, classrooms, business superlations, squares, streets, generation workshops, warehouse halls, and the like.

The access point may be an access point of a terminal (for example, a mobile phone) entering a wired (or wireless) network, and is mainly deployed in a home, a building and a park, where a typical coverage radius is several tens meters to hundreds meters, and of course, may also be deployed outdoors. The access point is equivalent to a bridge connecting a wired network and a wireless network, and is mainly used for connecting all wireless network clients together and then connecting the wireless network into an Ethernet.

Specifically, the access point may be a terminal with a Wi-Fi chip or a network device, where the network device may be a router, a relay station, a vehicle device, a wearable device, a network device in a 5G network, a network device in a future 6G network, or a network device in a public land mobile network (public land mobile network, PLMN), or the like, and the embodiments of the present application are not limited. The access point may be a device supporting the 802.11be standard. The access point may also be a device supporting multiple WLAN standards of 802.11 families, such as 802.11ax, 802.11ac, 802.11n, 802.11g, 802.11b, 802.11a, and 802.11be next generation. The access point in the present application may be a High Efficiency (HE) AP or an extremely high throughput (extremely high throughput, EHT) AP, and may also be an access point that is adapted to a future generation Wi-Fi standard.

The station may be a wireless communication chip, a wireless sensor, a wireless communication terminal, or the like, and may also be referred to as a user, a User Equipment (UE), an access terminal, a subscriber unit, a subscriber station, a mobile station, a remote terminal, a mobile device, a user terminal, a wireless communication device, a user agent, or a user equipment. The station may be a cellular telephone, a cordless telephone, a session initiation protocol (session initiation protocol, SIP) phone, a wireless local loop (wireless local loop, WLL) station, a personal digital assistant (personal digital assistant, PDA), a handheld device with wireless communication capabilities, a computing device or other processing device connected to a wireless modem, an in-vehicle device, an internet of things device, a wearable device, a terminal device in a 5G network, a terminal device in a future 6G network or a terminal device in a PLMN, etc., as the embodiments of the present application are not limited in this regard. Stations may support 802.11be standard. Stations may also support multiple WLAN standards of 802.11 families, such as 802.11ax, 802.11ac, 802.11n, 802.11g, 802.11b, 802.11a, 802.11be next generation, etc.

It should be understood that a station in this application may refer to a station (non-AP STA) that is not an access point.

As an example, the access point or the site in the present application may be a sensor node in a smart city, such as a smart water meter, a smart electric meter, and a smart air detection node, may also be a smart device in a smart home, such as a smart camera, a projector, a display screen, a television, a sound box, a refrigerator, a washing machine, and the like, may also be an entertainment terminal, such as a Virtual Reality (VR) and an augmented reality (augmented reality, AR), and the like, may also be a wearable device in a smart office, such as a printer, a projector, a loudspeaker, a sound box, and the like, may also be an infrastructure in a daily life scene, such as a vending machine, a super self-service navigation station, a self-service cashing device, a self-service ordering machine, and the like, and may also be a car networking device in a car networking, a node in an internet of things, a large sports and a music venue, and the like.

New protocol development of vehicular wireless short-distance communication system technology- "/green bud GT, and temporary protocol support for positioning is not carried out

Reference is made to existing positioning techniques (802.11 accurate time measurement (FTM), 802.11AZ, cellular network, ultra Wide Band (UWB) schemes are typically based on air-interface propagation delay measurements, positioning accuracy under multipath channel conditions is limited by multipath resolution (determined by signal bandwidth)

Multipath ranging accuracy is limited by multipath resolutionc is the speed of light, B is the signal bandwidth

The upper limit of LOS single-diameter distance measurement precision is

Under the same 160M bandwidth condition: the upper limit of the single-path and multi-path distance measurement precision is 1.87m (several tens of decimeters can be reached through some enhancement and filtering) and 5cm respectively

More and more communication devices have multiple antennas

The first version of the protocol of the vehicle-mounted wireless short-range communication system technology (star flash wireless communication system/wireless short-range communication vehicle-mounted air interface technology) does not support positioning measurement, and the subsequent version can increase the function with high probability.

Referring to the MIMO ranging scheme in 802.11az, a transmitting end transmits NTx (number of transmitting antennas) pilot symbols (HE-LTF), a receiving end performs MIMO channel estimation by solving an orthogonal P matrix, 11az supports N repeated transmissions, and actually, N repeated increases of signal-to-noise ratio (Signal Noise Ratio, SNR) are very limited for ranging performance.

Fig. 2 is a diagram of a format of a ranging PPDU. The meaning of the english abbreviation is: legacy short training sequences (Legacy Short Training Field, L-STF), legacy signaling fields (Legacy Signal Field, L-SIG), legacy signaling field duplication (Repeated L-SIG, RL-SIG), HE (High efficiency).

Wireless communication scenes, particularly indoor positioning scenes, are often multipath scenes, ranging/positioning accuracy is limited by multipath resolution, and a large positioning error can be caused if a head path is interfered by a neighboring path.

Fig. 3 is a schematic diagram of a real head diameter and a superimposed head diameter, and the green line shown in fig. 3 is a real head diameter, but the head diameters (yellow lines) seen after the three diameters are superimposed have larger deviation.

Spatial spectrum estimation methods, such as multiple signal classification (Multiple Signal Classification, MUSIC) algorithms, can be used to separate the multipath, but the computational complexity is too high to be practical.

The method mainly solves the problems that the ranging accuracy is limited under the multipath condition of the vehicle-mounted wireless short-distance communication system technology, and the spatial spectrum estimation algorithm is complicated and too high to be realized.

Fig. 4 shows a schematic diagram of a method 200 for positioning measurement according to an embodiment of the present application. As shown in fig. 4, the method 200 includes the following steps.

S210, the transmitting end generates a ranging frame.

S220, the transmitting end transmits the ranging frame in a beam scanning mode. Correspondingly, the receiving end receives the ranging frame.

According to the method provided by the embodiment, the transmitting end adopts beam scanning to transmit the ranging frame, so that space diversity is provided, the probability of separation of the head path and the interference path can be increased, and the positioning accuracy is improved.

Optionally, the method further comprises: s230, the receiving end analyzes the ranging frame.

Optionally, in one implementation, the method 200 further includes: the transmitting end continuously transmits the ranging frames, and different ranging frames are transmitted by different beams/antennas.

Optionally, in one implementation, the method 200 further includes: the transmitting end can broadcast and transmit the beam ID or the beam direction of the ranging frame to the other party so as to perform angle of departure (Angel Of Depature, AOD) angle measurement

Optionally, in one implementation, the method 200 further includes: the receiving end may feed back the beam ID and/or ranging frame number of the detected first path to the transmitting end (corresponding to the feedback of AoD).

Fig. 5 shows an example of transceiving of a ranging frame.

Fig. 6 shows the generation and transmission of a ranging frame at the transmitting end, as shown in fig. 6, where the transmitting end transmits the ranging frame with multiple antennas and uses different antenna ports (beams) for different symbols, in fig. 6, w _i Is the beam vector (which may be 0).

The method and the device perform the first path detection through the space diversity provided by different beams, and the first path is the forefront, namely the real first path. Specifically, fig. 7 shows a schematic diagram of a method for positioning measurement according to an embodiment of the present application. As shown in fig. 7, in order to generate different beams, the transmitting end needs antenna calibration to obtain the AoD angle of each beam. The AoD corresponding to each beam notifies the opposite end if necessary. The receiving end (node B in fig. 7) feeds back the beam ID corresponding to the detected head path, or the corresponding ranging frame number.

According to the method and the device, the beam scanning is adopted to transmit the ranging frame to provide space diversity, so that the probability of separation of the first path and the interference path is increased, and the positioning accuracy is improved.

In addition, the present application can provide AoD estimation through beam scanning, and combine Time Of arrival (ToA)/Time Of departure (ToD) ranging to achieve single-station positioning (or improve multi-station positioning accuracy/efficiency).

In the method, the beam scanning mode is adopted to transmit the ranging frame to increase the separation probability of the first path and the adjacent interference path, so that the positioning accuracy is improved

In the application, the transmitting end continuously transmits the ranging frames, and different ranging frames are transmitted by adopting different wave beams/antenna ports

In the application, the transmitting end can broadcast and transmit the beam ID or the beam direction of the ranging frame to the opposite side, so that AoD angle measurement can be performed

In the present application, the receiving end may feed back the beam ID and/or ranging frame number of the detected first path to the transmitting end (equivalent to feeding back AoD)

The following describes a communication device provided in an embodiment of the present application with reference to fig. 8 to 9.

Fig. 8 is a schematic block diagram of a communication device provided in an embodiment of the present application. As shown in fig. 8, the apparatus 400 may include a transceiving unit 410 and a processing unit 420. The transceiver unit 410 may communicate with the outside, and the processing unit 420 is used for data processing. The transceiver unit 410 may also be referred to as a communication interface or a communication unit.

In one possible design, the apparatus 400 may be the first device in the above method embodiment, or may be a chip for implementing the function of the first device in the above method embodiment. The apparatus 400 may comprise means for performing the method performed by the device 1 in fig. 3.

In another possible design, the apparatus 400 may be the second device in the above method embodiment, or may be a chip for implementing the function of the second device in the above method embodiment. The apparatus 400 may include means for performing the method performed by the device 2 of fig. 3.

It should be understood that the foregoing is merely exemplary, and the apparatus 400 may also implement other steps, actions, or methods related to the receiving end in the foregoing method embodiments, which are not described herein.

Fig. 9 is a schematic block diagram of a communication device 500 provided in an embodiment of the present application. As shown in fig. 9, the communication apparatus 500 includes: at least one processor 510 and a transceiver 520. The processor 510 is coupled to the memory for executing instructions stored in the memory to control the transceiver 520 to transmit signals and/or receive signals. Optionally, the communication device 500 further comprises a memory 530 for storing instructions.

It should be appreciated that the processor 510 and the memory 530 may be combined into one processing device, and the processor 510 is configured to execute the program codes stored in the memory 530 to implement the functions described above. In particular implementations, the memory 530 may also be integrated into the processor 510 or separate from the processor 510.

It should also be appreciated that transceiver 520 may include a receiver (or receiver) and a transmitter (or transmitter). Transceiver 520 may further include antennas, the number of which may be one or more. Transceiver 1020 may be a communication interface or interface circuitry.

When the communication device 500 is a chip, the chip includes a transceiver unit and a processing unit. The receiving and transmitting unit can be an input and output circuit or a communication interface; the processing unit may be an integrated processor or microprocessor or an integrated circuit on the chip. The embodiment of the application also provides a processing device, which comprises a processor and an interface. The processor may be used to perform the methods of the method embodiments described above.

It should be understood that the processing means may be a chip. For example, the processing device may be a field programmable gate array (field programmable gate array, FPGA), an application specific integrated chip (application specific integrated circuit, ASIC), a system on chip (SoC), a central processing unit (central processor unit, CPU), a network processor (network processor, NP), a digital signal processing circuit (digital signal processor, DSP), a microcontroller (micro controller unit, MCU), a programmable controller (programmable logic device, PLD) or other integrated chip.

In implementation, the steps of the above method may be performed by integrated logic circuits of hardware in a processor or by instructions in the form of software. The steps of a method disclosed in connection with the embodiments of the present application may be embodied directly in a hardware processor for execution, or in a combination of hardware and software modules in the processor for execution. The software modules may be located in a random access memory, flash memory, read only memory, programmable read only memory, or electrically erasable programmable memory, registers, etc. as well known in the art. The storage medium is located in a memory, and the processor reads the information in the memory and, in combination with its hardware, performs the steps of the above method. To avoid repetition, a detailed description is not provided herein.

The present application also provides a computer-readable storage medium having stored thereon computer instructions for implementing the method performed by the first device or the second device in the above-described method embodiments.

Embodiments of the present application also provide a computer program product containing instructions that, when executed by a computer, cause the computer to implement a method performed by a first device or a second device in the above method embodiments.

The application also provides a system comprising the first device or the second device.

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 the computer instructions are loaded and executed on a computer, the processes or functions described in accordance with embodiments of the present application are produced 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 accessed 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., a floppy disk, a hard disk, a magnetic tape), an optical medium (e.g., a high-density digital video disc (digital video disc, DVD)), or a semiconductor medium (e.g., a Solid State Disk (SSD)), or the like.

In the embodiments of the present application, words such as "exemplary," "for example," and the like are used to indicate by way of example, illustration, or description. Any embodiment or design described herein as "exemplary" is not necessarily to be construed as preferred or advantageous over other embodiments or designs. Rather, the term use of an example is intended to present concepts in a concrete fashion.

It should be appreciated that reference throughout this specification to "an embodiment" means that a particular feature, structure or characteristic described in connection with the embodiment is included in at least one embodiment of the present application. Thus, various embodiments are not necessarily referring to the same embodiments throughout the specification. Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.

It should be understood that, in various embodiments of the present application, the sequence numbers of the foregoing processes do not mean the order of execution, and the order of execution of the processes should be determined by the functions and internal logic thereof, and should not constitute any limitation on the implementation process of the embodiments of the present application. The names of all nodes and messages in the present application are merely names set for convenience of description of the present application, and names in actual networks may be different, and it should not be understood that the present application defines the names of various nodes and messages, but any names having the same or similar functions as those of the nodes or messages used in the present application are regarded as methods or equivalent alternatives of the present application, and are within the scope of protection of the present application.

It should also be understood that, in this application, "when …," "if," and "if" all refer to that the UE or the base station will make a corresponding process under some objective condition, and are not limited in time, nor do they require that the UE or the base station must have a judgment action when it is implemented, nor are they meant to have other limitations.

In this embodiment of the present application, the "preset", "preconfiguration", etc. may be implemented by pre-storing corresponding codes, tables, or other manners that may be used to indicate relevant information in a device (e.g., a terminal device), and the present application is not limited to a specific implementation manner thereof, for example, a preset rule, a preset constant, etc. in the embodiment of the present application.

In addition, the terms "system" and "network" are often used interchangeably herein. The term "and/or" is herein merely an association relationship describing an associated object, meaning that there may be three relationships, e.g., a and/or B, may represent: a exists alone, A and B exist together, and B exists alone.

The term "at least one of … …" or "at least one of … …" herein means all or any combination of the listed items, e.g., "at least one of A, B and C," may mean: there are six cases where A alone, B alone, C alone, both A and B, both B and C, and both A, B and C. The term "at least one" as used herein means one or more. "plurality" means two or more.

It should be understood that in embodiments of the present application, "B corresponding to a" means that B is associated with a, from which B may 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. The terms "comprising," "including," "having," and variations thereof mean "including but not limited to," unless expressly specified otherwise.

It should be understood that in the various embodiments of the present application, the first, second and various numerical numbers are merely for ease of description and are not intended to limit the scope of the embodiments of the present application. For example, different information is distinguished, etc.

Those of ordinary skill in the art will appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware, or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.

It will be clear to those skilled in the art that, for convenience and brevity of description, specific working procedures of the above-described systems, apparatuses and units may refer to corresponding procedures in the foregoing method embodiments, and are not repeated herein.

In the several embodiments provided in this 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 each embodiment 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.

The functions, if implemented in the form of software functional units and sold or used as a stand-alone product, may be stored in a computer-readable storage medium. Based on such understanding, the technical solution of the present application may be embodied essentially or in a part contributing to the prior art or in a part of the technical solution, in the form of a software product stored in a storage medium, including several instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the methods described in the embodiments of the present application. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a random access Memory (Random Access Memory, RAM), a magnetic disk, or an optical disk, or other various media capable of storing program codes.

The foregoing is merely specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily think about changes or substitutions within the technical scope of the present application, and the changes and substitutions are intended to be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

The embodiment of the application also provides a ranging method, which comprises the following steps.

Step 1, a transmitting end generates a beam enhanced ranging frame. The beam-enhancing ranging frame may be the ranging frame in the previous embodiment.

And step 2, the transmitting end transmits the beam enhanced ranging frame. Correspondingly, the receiving end receives the beam enhanced ranging frame.

According to the method provided by the embodiment, the transmitting end transmits the beam enhanced ranging frame, space diversity is provided, the probability of separation of the head path and the interference path can be increased, and the positioning accuracy is improved.

In one possible implementation, the beam-enhanced ranging frame may be scheduled by dynamic scheduling data control information. Specifically, the extended dynamic scheduling data control information (or the type of the dynamic scheduling data control information is the extended dynamic scheduling data control information) is indicated by the extended physical layer identification mask. The extended dynamic scheduling data control information may be resource scheduling information of a beam-enhanced ranging frame.

Optionally, the extended dynamic scheduling data control information includes one or more of: the method comprises the steps of expanding scheduling information type, link type indication information, cross-superframe scheduling indication, ranging frame space-time stream number, beam enhancement symbol number, ranging frame repetition number, 20M carrier ranging enabling indication, starting wireless frame indication information, wireless frame length indication, indication that a beam switching symbol needs to be added between two beams or expanding physical layer identification mask.

Optionally, the number of bits and the relevant characteristics of each information are as follows:

4 bits, extended scheduling information type, 0001 indicates beam enhanced ranging frame scheduling information.

1 bit: link type indication information. 0 indicates G-link transmission, and 1 indicates T-link transmission.

1 bit: an indication is scheduled across superframes. And 0 indicates that the control information and the resource scheduled by the control information are positioned in the same super frame, and 1 indicates that the resource scheduled by the control information is positioned in a super frame adjacent to the super frame in which the control information is positioned.

4 bits: first partial ranging frame space-time stream number N _ss，rang -1。

6 bits: the number of beam-enhancing symbols (disregarding repeated transmissions).

3 bits: number of ranging frame repetitions N _rep，rang If the threshold value is changed to v, N _rep，rang ＝2 ^v 。

8 bits: the 20M carries a ranging enable indication. Up to 8 20M may be indicated.

3 bits: the start radio frame indication information. In the scheduled superframe, the starting radio frame is # (3-bit value x 6) radio frame.

3 bits: wireless frame length indication. Starting from the starting radio frame, there are (3-bit value +1) ×6 radio frames.

1 bit: indicating that a beam switching symbol needs to be added between the two beams.

24 bits: generating polynomial g using cyclic redundancy check _CRC24B (D) A cyclic redundancy check sequence is calculated and a 24-bit extended physical layer identification mask is added. The extended physical layer identification mask is configured by higher layers.

The mask may be exclusive-ored with the cyclic redundancy check sequence.

In one possible implementation, the "semi-persistent scheduling data information transmission resource activation deactivation information" may be multiplexed to allocate resources for or schedule beam-enhanced ranging frames. In particular, the "semi-persistent scheduling data information transmission resource activation/deactivation information" may be multiplexed to activate or deactivate the semi-persistent scheduling data information transmission resource configuration of the higher layer configuration. The resources in the activated semi-persistent scheduling data information transmission resource configuration may be used to transmit beam-enhanced ranging frames. The resources in the deactivated semi-persistent scheduling data information transmission resource configuration may not be used to transmit beam-enhanced ranging frames.

Specifically, the node 1 may allocate multiple semi-persistent scheduling data information transmission resource configuration identifiers and a semi-persistent scheduling data information transmission resource configuration corresponding to each identifier to the node 2 through high-layer signaling. The node 2 receives and stores the resource configuration and the corresponding identification. Node 2 may not activate the use of the resource. The node 1 activates or deactivates the resources used for semi-persistent scheduling data information transmission stored by the node 2 by transmitting semi-persistent scheduling data information transmission resource information.

Before step 1 of this embodiment, the transmitting end may send the indication information to the receiving end. The indication information may be used to indicate ranging capability and/or beam-enhanced ranging capability.

In one possible implementation, the ranging capability and/or beam-enhanced ranging capability indication is carried in a communication domain system message.

Optionally, the communication domain system message is extended as follows:

wherein ranging capability occupies 2 bits. Wherein 1 bit is used to indicate whether ranging is supported; or, 1 bit is used to indicate whether beam-enhanced ranging frames are supported.

In one possible implementation, the ranging capability and/or beam-enhanced ranging capability indication is carried in a T node capability feedback message.

Optionally, the T node capability feedback message is extended as follows:

wherein ranging capability may occupy 3 bits. Wherein 1 bit is used to indicate whether ranging is supported; 1 bit for indicating whether a beam-enhanced ranging frame is supported; or, 1 bit is used to indicate whether a beam switching symbol is required.

Further, the ranging method provided in the embodiment of the present application further includes: step 3: the transmitting end receives the beam enhanced ranging measurement result report frame. The report frame is used for reporting the beam enhanced ranging result. Which includes ToA/ToD or ToD-ToA, aoA, beam selection information, etc.

Claims (6)

1. A method of positioning measurement, comprising:

the transmitting end generates a ranging frame;

and the transmitting end transmits the ranging frame in a beam scanning mode.

2. A method of positioning measurement, comprising:

the receiving end receives the ranging frame;

the receiving end analyzes the ranging frame.

3. A communication device, comprising:

a processor for executing a computer program stored in a memory to cause the apparatus to perform the method of claim 1 or 2.

4. The apparatus of claim 3, further comprising the memory.

5. A computer readable storage medium, characterized in that the computer readable storage medium has stored thereon a computer program which, when run on a computer, causes the computer to perform the method according to claim 1 or 2.

6. A computer program product, characterized in that the computer program product comprises instructions for performing the method of claim 1 or 2.