WO2022001713A1 - 感知测量信息交互装置 - Google Patents
感知测量信息交互装置 Download PDFInfo
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- WO2022001713A1 WO2022001713A1 PCT/CN2021/101148 CN2021101148W WO2022001713A1 WO 2022001713 A1 WO2022001713 A1 WO 2022001713A1 CN 2021101148 W CN2021101148 W CN 2021101148W WO 2022001713 A1 WO2022001713 A1 WO 2022001713A1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
- G01S13/02—Systems using reflection of radio waves, e.g. primary radar systems; Analogous systems
- G01S13/50—Systems of measurement based on relative movement of target
- G01S13/58—Velocity or trajectory determination systems; Sense-of-movement determination systems
- G01S13/581—Velocity or trajectory determination systems; Sense-of-movement determination systems using transmission of interrupted pulse modulated waves and based upon the Doppler effect resulting from movement of targets
- G01S13/582—Velocity or trajectory determination systems; Sense-of-movement determination systems using transmission of interrupted pulse modulated waves and based upon the Doppler effect resulting from movement of targets adapted for simultaneous range and velocity measurements
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W24/00—Supervisory, monitoring or testing arrangements
- H04W24/10—Scheduling measurement reports ; Arrangements for measurement reports
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
- G01S13/003—Bistatic radar systems; Multistatic radar systems
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
- G01S13/02—Systems using reflection of radio waves, e.g. primary radar systems; Analogous systems
- G01S13/50—Systems of measurement based on relative movement of target
- G01S13/52—Discriminating between fixed and moving objects or between objects moving at different speeds
- G01S13/56—Discriminating between fixed and moving objects or between objects moving at different speeds for presence detection
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
- G01S7/003—Transmission of data between radar, sonar or lidar systems and remote stations
- G01S7/006—Transmission of data between radar, sonar or lidar systems and remote stations using shared front-end circuitry, e.g. antennas
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/02—Services making use of location information
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W64/00—Locating users or terminals or network equipment for network management purposes, e.g. mobility management
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W64/00—Locating users or terminals or network equipment for network management purposes, e.g. mobility management
- H04W64/006—Locating users or terminals or network equipment for network management purposes, e.g. mobility management with additional information processing, e.g. for direction or speed determination
Definitions
- the present application relates to the field of communication technologies, and in particular, to a device for exchanging perception measurement information.
- Radar has been widely used in the field of target detection technology.
- the principle of radar detection is: the radar transmitting system sends out a specific electromagnetic wave signal, the electromagnetic wave signal will be reflected when it encounters the target during the propagation process, and the radar receiving system receives the reflected signal. After comparing the reflected signal with the transmitted signal, the distance, moving speed and orientation of the target are calculated.
- WiFi devices have been widely used. Since the main structure of WiFi devices is similar to the basic structure of radar devices, radar technology can be introduced into WiFi devices, so that WiFi devices can complete the communication function and also have the ability to detect Ability.
- the embodiment of the present application discloses a perception measurement information interaction method and a device thereof, which are used for locating the position and instantaneous speed of a passive target.
- a method for exchanging perception measurement information comprising: a first station receiving perception measurement report information sent by a second station; the perception measurement report information includes N groups of first measurement results, wherein the N groups The first measurement results are in one-to-one correspondence with the N first transmission paths between the first site and the second site, and each group of the first measurement results includes the angle of arrival of the corresponding first transmission path, Transmission relative delay and Doppler frequency shift; the first station obtains the arrival angles, transmission relative delays and Doppler frequency shifts of the N first transmission paths according to the sensing measurement report information.
- the first station can be based on the N groups of first measurement results.
- the angle of arrival, relative transmission delay and Doppler frequency shift of each of the N first transmission paths in the measurement results determine the position and instantaneous velocity of the passive target corresponding to the N first transmission paths , and realizes the measurement of the position and instantaneous velocity of multiple passive targets.
- a method for exchanging perception measurement information including: a second station generating perceptual measurement report information according to N groups of first measurement results, wherein the N groups of first measurement results are associated with the first station and the second station.
- the N first transmission paths between sites are in one-to-one correspondence, and each group of the first measurement results includes the angle of arrival, relative transmission delay, and Doppler frequency shift of the corresponding first transmission path;
- the first station sends the sensing measurement report information.
- a third aspect provides an apparatus for exchanging perception measurement information, which is applied to a first site and includes: a transceiver unit configured to receive perception measurement report information sent by a second site; the perception measurement report information includes N groups of first measurements As a result, the N groups of first measurement results are in one-to-one correspondence with the N first transmission paths between the first site and the second site, and each group of the first measurement results includes the corresponding The angle of arrival, the relative transmission delay, and the Doppler frequency shift of the first transmission path; the processing unit, configured to obtain the angle of arrival, relative transmission delay and Doppler frequency of the N first transmission paths according to the sensing measurement report information frequency shift.
- a fourth aspect provides an apparatus for exchanging perception measurement information, applied to a second site, comprising: a processing unit configured to generate perceptual measurement report information according to N groups of first measurement results, wherein the N groups of first measurement results There is a one-to-one correspondence with the N first transmission paths between the first site and the second site, and each group of the first measurement results includes the angle of arrival, relative transmission delay, and multiplicity of the corresponding first transmission path. a Peller frequency shift; a transceiver unit, configured to send the sensing measurement report information to the first station.
- a fifth aspect provides an apparatus for exchanging perception measurement information, including a processor and a memory, the memory storing instructions, when the instructions are executed by the processor, so that the apparatus for exchanging perception measurement information executes: receiving the first Perceptual measurement report information sent by two sites; the perceptual measurement report information includes N groups of first measurement results, wherein the N groups of first measurement results and N between the first site and the second site
- the first transmission paths are in one-to-one correspondence, and each group of the first measurement results includes the angle of arrival, the relative transmission delay, and the Doppler frequency shift of the corresponding first transmission path; N are obtained according to the sensing measurement report information The angle of arrival, relative transmission delay and Doppler shift of the first transmission path.
- an apparatus for exchanging perception measurement information including a processor and a memory, the memory storing instructions, when the instructions are executed by the processor, so that the apparatus for exchanging perception measurement information executes: according to N A set of first measurement results is used to generate perceptual measurement report information, wherein the N sets of first measurement results are in one-to-one correspondence with N first transmission paths between the first site and the second site, and each set of the first The measurement results all include the angle of arrival, the relative transmission delay and the Doppler frequency shift of the corresponding first transmission path; and the sensing measurement report information is sent to the first station.
- the perceptual measurement report information further includes: measurement result group number information, where the measurement result group number information is used to indicate the group number N of the first measurement result .
- the sensing measurement report information further includes: report type information, where the report type information is used to indicate the type of the sensing measurement report information.
- the sensing measurement report information further includes: carrier frequency offset parameter information, where the carrier frequency offset parameter information is used to indicate the offset of the carrier frequency.
- the sensing measurement report information is carried in a position measurement report frame, wherein a measurement result field and a measurement result group number field are newly added to the position measurement report frame,
- the value of the measurement result field is the N groups of first measurement results
- the value of the measurement result group number field is the group number N of the first measurement result
- the type field in the location measurement report frame The value of the value is the first numerical value, to indicate that the type of the position measurement report frame is a perception measurement report frame
- the value of the carrier frequency offset parameter field in the position measurement report frame is the offset of the carrier frequency
- the sensing measurement report information is carried in a predefined frame, wherein the predefined frame includes a type field, a measurement result field, a measurement result group number field, and a carrier frequency offset parameter field, and the value of the type field is The second value is used to indicate that the type of the predefined frame is a perceptual measurement report frame, the value of the measurement result field is the N groups of
- M times of sensing measurements are performed with the second site, wherein each time The sensing measurements all include: sending a first measurement frame to the second station; and receiving a second measurement frame sent by the second station.
- the sensing measurement advance information before performing M times of sensing measurements with the second site, the sensing measurement advance information is sent to the second site, wherein the The perceptual measurement advance information is used to instruct the second site to perform perceptual measurement.
- the sensing measurement advance information is sent to the second site at the first moment , the first moment is a moment in the first time period, and the first time period is the intersection of the time period during which the first site can perform sensing measurement and the time period during which the second site can perform sensing measurement .
- a sensing measurement request is sent to the second site, and the sensing measurement request is sent to the second site.
- the request carries the time period during which the first station can perform sensing measurement, channel information, and the maximum number of sensing measurements that can be performed between the first station and the second station; wherein the maximum number of sensing measurements is greater than or equal to the M; receiving response information sent by the second station based on the sensing measurement request, where the response information carries the first time period, where the first time period is the time when the first station can The intersection of the time period during which the perceptual measurement is made and the time period during which the second station is capable of making the perceptual measurement.
- each group of the second measurement results includes a corresponding second transmission path according to the angle of arrival, relative transmission delay and Doppler frequency shift of the N first transmission paths and the angle of arrival of the Z second transmission paths , relative transmission delay and Doppler frequency shift to determine the position and instantaneous velocity of each passive target, wherein the passive target is located on the transmission path.
- determining the position and instantaneous speed of the passive target includes: according to the angle of arrival of the N first transmission paths, the relative transmission delay and The Doppler frequency shift and the angle of arrival of the Z second transmission paths, the relative transmission delay and the Doppler frequency shift determine the first transmission path and the second transmission path of the same passive target, so as to obtain the first transmission path and the second transmission path of each of the passive targets; according to the arrival angle and transmission relative delay of the first transmission path of each passive target and the arrival angle and transmission relative delay of the second transmission path Delay, the position of the first station and/or the second station, respectively determine the position of each of the passive targets; according to the Doppler frequency shift of the first transmission path of each of the passive targets Or the Doppler shift of the second transmission path, the carrier wavelength of the measurement frame determines the instantaneous velocity of each of the passive targets.
- the transmission path and the second transmission path, and then the angle of arrival and the relative transmission delay of the first transmission path and the angle of arrival and the relative transmission delay of the second transmission path for each passive target, the first site and/or the second transmission path The location of the station, the location of each passive target is determined separately, and the location determination steps are simple and easy to execute.
- the instantaneous speed of the passive target can be calculated through the Doppler frequency shift of the first transmission path or the second transmission path of the passive target, and the steps are simple and easy to execute.
- both the first transmission path and the second transmission path are multiple, there are also multiple overlapping transmission paths among the multiple first transmission paths and the multiple second transmission paths, and since the passive target is on the transmission path , therefore, the positions and instantaneous velocities of a plurality of passive targets can be determined through a plurality of first transmission paths and a plurality of second transmission paths.
- the improvement is improved. The accuracy of the position measurement results of passive targets and the robustness of the system are improved.
- the sensing measurement is performed M times with the first site, wherein, Each of the sensing measurements includes: receiving a first measurement frame sent by the first station; and sending a second measurement frame to the first station.
- the sensing measurement advance information sent by the first site is received, wherein, The perceptual measurement advance information is used to instruct the second station to perform perceptual measurement.
- a perceptual measurement notice sent by the first site is received at the first moment information
- the first time is a time in a first time period
- the first time period is the time period in which the first site can perform sensing measurement and the time period in which the second site can perform sensing measurement. intersection.
- a sensing measurement request sent by the first site before receiving the sensing measurement advance information sent by the first site, a sensing measurement request sent by the first site is received, and the sensing measurement request sent by the first site is received.
- the sensing measurement request carries the time period during which the first site can perform sensing measurement, channel information, and the maximum number of sensing measurements that can be performed between the first site and the second site; wherein, the maximum number of sensing measurements can be performed.
- the number of times is greater than or equal to the M; response information is sent to the first site in response to the sensing measurement request, and the response information carries the first time period, where the first time period is the first time period The intersection of the time period during which the station can perform the sensing measurement and the time period during which the second station can perform the sensing measurement.
- the method further includes: determining N groups of first measurement results according to M first measurement frames received in the M times of sensing measurements.
- the sensing measurement advance information further carries the number M of the sensing measurement and/or the termination information of the sensing measurement.
- the perceptual measurement forecast information is carried in an empty data packet forecast frame, wherein: the frame type subfield in the frame control field in the empty data packet forecast frame
- the value of the value is the fourth numerical value, which is used to instruct the second site to perform perceptual measurement
- the value of any subfield in the site information field of the empty data packet preview frame is the number of times M or all of the perceptual measurement.
- the termination information of the perceptual measurement; or the value of the reserved bits in the measurement dialog password field of the empty data packet advance frame is the fifth value, which is used to instruct the second site to perform perceptual measurement, and the empty data packet advance notice
- the value of any subfield in the site information field of the frame is the number of times M of the sensing measurement or the termination information of the sensing measurement; or a part of bits of the reserved bits of the site information field of the empty data packet preview frame
- the value of the value is the sixth value, which is used to instruct the second site to perform perceptual measurement, and the value of another part of the reserved bits is the termination information of the perceptual measurement; or the value of the empty data packet preview frame
- the value of the reserved bits of a site information field is the seventh numerical value, which is used to instruct the second site to perform perceptual measurement, and the value of the reserved bits of another site information field of the empty data packet pre-announcement frame is all The number of times M of the perceptual measurement or the termination information of the percept
- the perceptual measurement information exchange device may be a chip
- the processing unit may be a processing circuit of the chip
- the transceiver unit may be an input/output interface circuit
- the processing circuit may be used for Processing the signaling or data information provided by the input and output
- the input and output interface circuit can be used to input and output data or signaling information for the chip.
- a seventh aspect of the embodiments of the present application provides a computer-readable storage medium, where computer program codes are stored in the computer-readable storage medium, and when the computer program runs on a processor, the processor executes Any one of the first aspect and the second aspect above and the method in a corresponding possible implementation manner.
- a computer program product stores a computer program (instruction) executed by the above-mentioned processor.
- the processor causes the processor to Perform the method in any one of the first aspect and the second aspect and corresponding possible implementation manners.
- an apparatus for exchanging perception measurement information includes a processor, and may also include a transceiver and a memory.
- the transceiver is used to send and receive information, or to communicate with other network elements or devices. communication; memory, used to store computer programs (instructions); processor, used to execute the computer program, to support the perception measurement information interaction device to implement any one of the first aspect and the second aspect and corresponding possible implementations Methods.
- a device for exchanging perception measurement information can exist in the form of a chip, and the structure of the device includes a processor and a memory.
- the memory is used to communicate with the processor. Coupling, saves the necessary program (instruction) and data of the device, and the processor is used to execute the computer program stored in the memory to support the communication device to perform in any one of the above-mentioned first aspect, the second aspect and corresponding possible implementations Methods.
- the memory may be located in the processor, which is internal storage, and the processor may also be located outside the processor, coupled and linked with the processor, and is external storage.
- FIG. 1 is a schematic diagram 1 of an application scenario of perceptual measurement provided by an embodiment of the present application
- FIG. 2 is a schematic diagram of a perceptual measurement negotiation process according to an embodiment of the present application
- 3a is a schematic diagram of a format of an empty data packet advance notice frame that does not carry sensing measurement advance notice information provided by an embodiment of the application;
- 3b is a schematic diagram of a format of a measurement dialog password field provided by an embodiment of the present application.
- 3c is a schematic diagram of the format of the site information field provided by the embodiment of the present application.
- FIG. 4 is a schematic diagram of M times of perception measurements between a first site and a second site provided by an embodiment of the present application;
- FIG. 5 is a schematic diagram of an antenna of a first site provided by an embodiment of the present application.
- FIG. 6 is a schematic flowchart of an interaction method for a perception measurement report provided by an embodiment of the present application.
- FIG. 7 is a schematic structural diagram of an LMR frame provided by an embodiment of the present application.
- FIG. 8 is a schematic structural diagram of a predefined frame provided by an embodiment of the present application.
- FIG. 9 is a schematic structural diagram of a predefined element provided by an embodiment of the present application.
- FIG. 10 is a schematic flowchart of determining the position and instantaneous velocity of a passive target provided by an embodiment of the present application
- FIG. 11 is a second schematic diagram of an application scenario of perceptual measurement provided by an embodiment of the present application according to an embodiment of the present application;
- FIG. 12 is a schematic diagram of an apparatus for exchanging perception measurement information according to an embodiment of the present application.
- FIG. 13 is a schematic schematic diagram of a possible structure of a measurement information interaction apparatus provided by an embodiment of the present application.
- At least one (item) refers to one or more, and "a plurality” refers to two or more.
- “And/or” is used to describe the relationship between related objects, indicating that there can be three kinds of relationships, for example, “A and/or B” can mean: only A, only B, and both A and B exist , where A and B can be singular or plural.
- the character “/” generally indicates that the associated objects are an “or” relationship.
- At least one item(s) below” or similar expressions thereof refer to any combination of these items, including any combination of single item(s) or plural items(s).
- At least one (a) of a, b or c can mean: a, b, c, "a and b", “a and c", “b and c", or "a and b and c" ", where a, b, c can be single or multiple.
- the target is detected by Fine Time Measurement (FTM, precise time measurement).
- FTM Fine Time Measurement
- the specific process is: multiple interactions between the sending site and the receiving site, calculating the round-trip time of the detection signal transmission between the two sites, Then, the propagation distance of the probe signal between the sending site and the receiving site is calculated according to the transmission speed of the electromagnetic wave and in combination with the above-mentioned round-trip time.
- the propagation distance of the probe signal between the sending site and the receiving site is the distance between the sending site and the receiving site, and when there is no direct path between the sending site and the receiving site , this method cannot measure the distance between the sending site and the receiving site.
- the distance between the sending site and the receiving site cannot be determined; in addition, through the interaction between the sending site and the receiving site, the sending site and the receiving site.
- the distance between sites, and both the receiving site and the sending site are active devices, that is, only the distance between active devices can be measured, and the distance between passive devices cannot be measured, that is, it cannot be applied to the positioning of passive targets.
- the distance measurement relies on the transmission time of the detection signal, the accuracy of time measurement is limited due to the limitation of bandwidth and indoor multipath signals, and a small time error will bring Therefore, the accuracy of ranging is not high.
- the transmitting station transmits a detection signal in a specific direction toward the passive target, and the detection signal is received by the receiving station after being reflected by the passive target.
- the receiving station calculates the arrival angle of the detection signal, and feeds back the arrival angle of the detection signal to the transmitting station.
- the transmitting station determines the position of the passive target according to the arrival angle and emission angle of the detection signal and the positions of the transmitting station and the receiving station.
- the position of the passive target can be determined, since the orientation of the passive target is not known, it is necessary to repeat scanning in multiple different directions to complete the detection of the passive target. Due to the limitations of the number of antennas, antenna aperture and frequency band of the site, the directivity of the detection signal is very poor, resulting in poor accuracy of the emission angle of the detection signal, which in turn leads to poor positioning accuracy of passive targets. To complete the measurement of a single passive target, it is impossible to detect multiple passive targets at the same time, and it is impossible to measure the instantaneous speed of the passive target.
- the sending station sends the detection signal omnidirectionally, and the receiving station receives the superimposed signal composed of the direct path signal and the reflected signal reflected by the passive target.
- the receiving station measures the arrival angle of the reflected signal, the direct path signal and the time difference between the reflected signal reaching the receiving station, and then determines the sum of the distances from the passive target to the transmitting and receiving stations according to the positions of the transmitting and receiving stations, so as to determine the passive target.
- the intersection of the ray in the opposite direction to the arrival angle and the ellipse is determined as the position of the passive target.
- the distance measurement between active devices must be performed when there is a direct path between the sending site and the receiving site, and the ranging accuracy is low, which cannot be directly used for the positioning of passive targets.
- the detection of a passive target requires repeated scanning in multiple different directions, and only one passive target can be located in one detection, and the positioning accuracy of the passive target is poor.
- a direct path is required between the sending site and the receiving site to locate the passive target, and the positioning accuracy is not high.
- none of the above methods support the measurement of the instantaneous speed of the passive target.
- the present application provides a sensing measurement method, which realizes the location and instantaneous measurement of multiple passive targets by performing multiple sensing measurements in two directions between two sites and using the mutual dissimilarity of the channels. speed determination.
- a sensing measurement method which realizes the location and instantaneous measurement of multiple passive targets by performing multiple sensing measurements in two directions between two sites and using the mutual dissimilarity of the channels. speed determination.
- FIG. 1 is a schematic diagram 1 of an application scenario of the perceptual measurement method provided by the embodiment of the present application.
- the application scenario includes: a first site 101 , a second site 102 and at least one passive target 103 .
- the first site 101 and the second site 102 are both devices including multiple antennas and capable of measuring the angle of arrival of received signals, such as wifi devices, notebook computers, mobile phones, etc., which are not specifically limited in this application.
- the passive target 103 can be, for example, a person, an animal, an automobile, etc., which is not specifically limited in this application.
- multiple sensing measurements may be performed between the first station 101 and the second station 102, and the position and location of each passive target 103 in the at least one passive target 103 may be determined according to the results of the multiple sensing measurements.
- Instantaneous speed Since the principle of perceptual measurement will be described below, it will not be repeated here.
- the first site simultaneously performs multiple sensing measurements with each second site, and the multiple sensing based on the first site and each second site
- the results of the measurements determine the position and instantaneous velocity of the at least one passive target corresponding to the first station and each of the second stations, respectively.
- the perception measurement method mainly includes three processes, namely the negotiation process, the perception measurement process and the result exchange process, among which:
- the first site 101 needs to sense the position and instantaneous speed of the passive target 103, it sends a sense measurement request to the second site 102 to negotiate the relevant information in the sense measurement process through the sense measurement request.
- the perceptual measurement process includes a measurement forecast sub-process and a perceptual measurement sub-process. in:
- the first site 101 sends the sensory measurement prediction information to the second site 102 according to the relevant information in the negotiated sensory measurement process, so as to inform the second site 102 that the sensory measurement sub-process needs to be executed next.
- the perceptual measurement pre-announcement information carries information such as the number of perceptual measurements and/or termination information of perceptual measurement to inform the second site 102 of the number of perceptual measurements and/or termination information of perceptual measurement in the perceptual measurement sub-process.
- the first station 101 and the second station 102 perform multiple perceptual measurements, wherein, in each perceptual measurement, the first station 101 sends a first measurement frame to the second station 102, and the second station 102 sends a second measurement frame to the first station 101 after receiving the first measurement frame.
- the second station 102 determines N groups of first measurement results according to a plurality of first measurement frames received in multiple sensing measurements, where the N groups of first measurement results are in one-to-one correspondence with the N first transmission paths.
- Each set of first measurement results includes the angle of arrival, relative transmission delay and Doppler frequency shift of the corresponding first transmission path.
- the first transmission path is a path through which the first measurement frame is transmitted between the first station 101 and the second station 102 .
- the first station 101 determines Z groups of second measurement results according to a plurality of second measurement frames received in multiple sensing measurements, where the Z groups of second measurement results correspond to the Z second transmission paths one-to-one.
- Each set of second measurement results includes the angle of arrival, relative transmission delay and Doppler frequency shift of the corresponding second transmission path.
- the second transmission path is the path through which the second measurement frame is transmitted between the second station 101 and the first station 102 .
- the second station 102 sends the N groups of first measurement results to the first station 101, and the first station 101 determines the position and location of the passive target 103 according to the N groups of first measurement results and the Z groups of second measurement results.
- the above negotiation process is an optional process, that is, the process may be executed before the sensing measurement process, or the process may not be executed, which is not specifically limited in this application.
- the measurement forecasting sub-process in the above-mentioned perceptual measurement process is an optional process, that is, the sub-process may be executed in the perceptual measurement process, or the sub-process may not be executed, which is not particularly limited in this embodiment of the present application.
- the first site 101 sends a sensing measurement request to the second site 102, where the sensing measurement request carries the time period during which the first site 101 can perform sensing measurement, channel information, and information about the sensing measurement that can be performed between the first site 101 and the second site 102.
- the maximum number of times; among them, the channel information includes the center frequency point and the channel bandwidth, and the center frequency point is the frequency of the center carrier.
- the second station 102 can determine, according to the channel information, the relevant information of the channel that communicates with the first station 101.
- the second site 102 receives the sensing measurement request, and in response to the sensing measurement request, determines that the first site 101 can perform sensing measurement according to the time period during which the first site 101 can perform sensing measurement and the time period during which the second site 102 can perform sensing measurement.
- the intersection of the time period and the time period in which the second station 102 can perform sensing measurement that is, the first time period, and send response information to the first station 101, where the response information carries the first time period.
- the first site 101 receives the response information, and obtains the first time period in the response information.
- the sensing measurement request may also carry information such as the number of space-time streams, which is not particularly limited in the embodiments of the present application.
- the sensory measurement request may be, for example, a sensory measurement request frame
- the response information may be, for example, a sensory measurement response frame, etc., which is not particularly limited in this embodiment of the present application.
- the sensing measurement negotiation process will be described by taking the sensing measurement request as the sensing measurement request frame and the response information as the sensing measurement response frame as an example.
- the first site 101 sends a sensing measurement request frame to the second site 102;
- the second site 102 after receiving the sensing measurement request frame, the second site 102 returns an ACK frame (acknowledgement frame) to the first site 101 within the SIFS time;
- the second site 102 sends a sensing measurement response frame to the first site 101 based on the sensing measurement request frame;
- the first station 101 receives the sensing measurement response frame, and returns an ACK frame (acknowledgement frame) to the second station 102 within the SIFS time.
- SIFS time is the minimum inter-frame space.
- the first site 101 negotiates with the second site 102 about the related information of the sensing measurement by sending the sensing measurement request to the second site 102 to ensure that the subsequent sensing measurement process can be carried out smoothly; the second site 102 will respond
- the information is sent to the first site 101, that is, the negotiation result is sent to the first site 101, so that the first site 101 obtains the negotiation result according to the response information, and starts the perception measurement process based on the negotiation result.
- the specific process of the perception measurement process is as follows:
- the first site 101 sends the sensing measurement advance information to the second site 102, wherein the sensing measurement advance information is used to instruct the second site 102 to perform the sensing measurement, and the second site 102 receives the sensing measurement advance information and responds to the sensing measurement advance information and the first site 102.
- a site 101 makes perceptual measurements.
- the first site 101 sends the sensing measurement advance information to the second site 102 to instruct the second site 102 to perform sensing measurement.
- the second site 102 receives the sensing measurement advance information, it can prepare in advance, In order to better complete the perception measurement with the first station 101 .
- the timing for the first site 101 to send the sensing measurement advance information to the second site 102 may be, for example, the first moment, which is a moment in the above-mentioned first time period, that is, the sensing measurement is sent to the second site 102 at the first moment Advance information. It should be noted that the timing at which the first site 101 sends the sensing measurement advance information to the second site 102 is only exemplary, and is not intended to limit the present application. When the position and instantaneous speed of the passive target 103 need to be sensed, the sensing measurement advance information is sent to the second station 102 .
- the perceptual measurement advance information 102 may further carry the number M of perceptual measurement and/or the termination information of the perceptual measurement.
- the second station 102 can quickly determine the triggering condition for stopping sensing measurement according to the number of sensing measurements M and/or the termination information of sensing measurement, and then at the time of sensing measurement. During the process, if the second station 102 detects that the trigger condition is triggered (that is, the number of sensing measurements reaches M times or the measurement state conforms to the termination information of sensing measurement), the sensing measurement is stopped.
- the perceptual measurement forecast information can be carried in a media access control (media access control) frame for transmission.
- media access control media access control
- the perceptual measurement forecast information is carried in the empty data packet.
- the method of wrapping the preview frame will be explained.
- the empty data packet pre-announcement frame defined by the 802.11ax protocol includes a frame control field, a duration field, a receiving address field, a sending address field, a measurement dialog password field, n site information fields, a site information security authentication code field, Frame Check Sequence field, where:
- Frame control field to indicate the type of empty packet trailer frame.
- Duration field used to indicate the duration of the empty packet preview frame.
- the receiving address field is used to indicate the address of the receiving end.
- the sending address field is used to indicate the address of the sender.
- the measurement dialog password field is used to indicate the serial number of this measurement, that is, to indicate which measurement this measurement is.
- the measurement dialog password field includes a ranging subfield, a HE/VHT subfield and a measurement dialog password subfield.
- the ranging subfield is used to indicate that the frame sent this time is a frame used for ranging
- the HE/VHT subfield is used to indicate the version of the standard
- the measurement dialog password subfield is used to indicate the number of this measurement, and the Indicates which measurement this measurement is.
- each site information field includes an association identifier subfield, an offset subfield, a responder-to-initiator space-time stream count subfield, a responder-to-initiator repetition count subfield, an initiator-to-responder subfield
- the association identification subfield is used to indicate the number of the responder (ie, the receiver).
- Offset subfield used to indicate the identity of the standard LTF.
- Responder to Initiator Space Time Stream Number subfield used to indicate the number of independent messages between the responder and the initiator (sender).
- the Responder to Initiator Repeats subfield is used to indicate the number of LTFs included in the frame sent by the Responder to the Initiator and the number of repetitions sent.
- Initiator-responder space-time stream count subfield used to indicate the number of independent messages between the initiator and the responder.
- the initiator-to-responder repetition times subfield is used to indicate the number of LTFs included in the frame sent by the initiator to the responder and the number of repetitions sent.
- the first reserved subfield and the second reserved subfield are bits reserved in the station information field.
- the site information security authentication code field is used to indicate the information that the receiver and the sender perform security verification.
- the Frame Check Sequence field is used to indicate the frame's check sequence to verify that the frame has not been altered.
- this embodiment of the present application redefines or modifies the values of some fields of the pre-empty data packet pre-frame already defined by 802.11ax. For example, if the perceptual measurement forecast information carries any one of the number of perceptual measurements M and the termination information of perceptual measurement, the methods for carrying the perceptual measurement forecast information in the empty data packet forecast frame include the following five:
- the value of the frame type subfield in the frame control field in the empty data packet advance frame is the fourth value to instruct the second site to perform perceptual measurement, so that after the second site receives the empty data packet advance frame , to start the perceptual measurement. That is to say, a new perceptual measurement NDPA frame is added to the frame subtype indication type of the Frame Control field of the NDPA frame, and a new value in the frame subtype is used to indicate the newly added perceptual measurement NDPA frame.
- the value can be a value that is not defined and used in 802.11ax.
- the value of any subfield in the site information field of the empty data packet pre-announcement frame is the number of perceptual measurements M or the termination information of the perceptual measurement, that is, any subfield in the site information field is customized, through the custom
- the subfield indicates the number M of perceptual measurements or termination information of perceptual measurements.
- association identifier subfield in the site information field is set to the number of sensing measurements M or the termination information of the sensing measurement, the association identifier subfield in another site information field needs to be used to indicate the second. The number of the site.
- the value of the reserved bits in the measurement dialog token (sounding dialog token) field of the empty data packet preview frame is the fifth value, which is used to instruct the second site to perform perception measurement. That is to say, a new perceptual measurement NDPA frame is defined in the reserved bits of the sounding dialog token field of the NDPA frame, and a new value of the reserved bits of the sounding dialog token field is used to indicate the newly defined perceptual measurement NDPA frame, the new value can be a value that is not defined and used in 802.11ax.
- the value of any subfield in the station information field of the empty data packet advance frame is the number M of perceptual measurement or termination information of perceptual measurement. That is, any subfield in the site information field is customized, and the user-defined subfield indicates the number M of perceptual measurements or termination information of perceptual measurements.
- association identification subfield in the site information field is set to the number of sensing measurement reports M or the termination information of the sensing measurement report, it is necessary to use the association identification subfield in another site information field to indicate Number of the second station.
- the third type is that a part of the reserved bits in the station information field of the empty data packet pre-announcement frame takes the sixth value, which is used to instruct the second station to perform the sensing measurement, and the other part of the reserved bits carries the termination of the sensing measurement. information. That is to say, a new perceptual measurement NDPA frame is defined in a part of the reserved bits of the STA Info field of the NDPA frame, through a new value of a part of the reserved bits of the STA Info field of the NDPA frame, indicating For the newly defined perceptual measurement NDPA frame, the new value may be a value not defined and used in 802.11ax.
- the reserved bit of a site information field of the empty data packet preview frame takes the seventh value, which is used to instruct the second site to perform perception measurement, and the reservation of another site information field of the empty data packet preview frame.
- the bits carry the number M of perceptual measurements or termination information for perceptual measurements. That is to say, a new perceptual measurement NDPA frame is defined in the reserved bits of a STA Info field of the NDPA frame, and a new value of the reserved bits of the STA Info field is used to indicate the newly defined perceptual measurement NDPA frame.
- the value of the association identification subfield in the station information field in the empty data packet notice frame is any integer between 2008 and 2047, which is used to instruct the second station to perform perception measurement. That is to say, a new perceptual measurement NDPA frame is added to the AID11/RID11 of the STA Info field of the NDPA frame, and a new value in AID11/RID11 is used to indicate that the newly added perceptual measurement NDPA frame, the new perceptual measurement NDPA frame
- the value can be a value that is not defined and used in 802.11ax.
- Other fields in the site information field carry the number M of sensing measurements or termination information of sensing measurements. It should be noted that, since the second site is instructed to perform perceptual measurement through the associated identifier subfield in the site information field in the empty data packet advance notice frame, the associated identifier in the other site information fields in the empty data packet advance notice frame is used. field to indicate the number of the second station.
- the first station 101 and the second station 102 perform M times of perceptual measurement.
- the timings for the first station 101 and the second station 102 to perform M times of sensing measurements are:
- the first site 101 sends the sensing measurement advance information to the second site 102
- the first site 101 and the second site 102 perform M times of sensing measurement.
- the first site 101 If the first site 101 does not send the sensing measurement advance information to the second site 102 and the negotiation process is performed, the first site 101 performs M times of sensing measurement with the second site 102 within the first time period.
- the first station 101 performs M times of sensing measurement with the second station 102 when it needs to sense the position and instantaneous speed of the passive target 103 .
- timings for the first station 101 and the second station 102 to perform M times of sensing measurements are only exemplary, and are not intended to limit their own application.
- the manner of determining the number M of perceptual measurements performed by the first station 101 and the second station 102 may, for example, be as follows: the first station 101 determines the first station 101 and the second station 102 The number M of perceptual measurements made by the second station 102 . It should be noted that, for the accuracy of measurement, the value of M can be set as large as possible within the allowable range.
- the first site 101 may notify the second site 102 of the number of sensing measurements by sending the sensing measurement advance information to the second site 102, and carrying the sensing measurement times M in the sensing measurement advance information.
- the perceptual measurement process includes: the first station 101 sends the first measurement frame to the second station 102, the second station 102 receives the first measurement frame and sends the first measurement frame to the first station 102.
- the station 101 sends the second measurement frame, and the first station 101 receives the second measurement frame.
- the first measurement frame is used by the second station to measure the channel between the first station and the second station, thereby acquiring channel state information
- the second measurement frame is used by the first station to measure the channel between the second station and the first station, Thereby, the channel state information is obtained.
- the first measurement frame and the second measurement frame may be, for example, a Null Data Packet (NDP, Null data packet) frame, or other frames including a preamble sequence, and of course, may also be data frames, which are not particularly limited in the embodiments of the present application. .
- the above single perception measurement process is repeated until the number of perception measurements reaches M times, and M times of perception measurements between the first site 101 and the second site 102 can be completed.
- the passive target detection can be completed without repeated scanning in multiple different directions, and the detection caused by the poor directionality of the detection signal is avoided.
- the problem of poor signal transmission angle accuracy also solves the problem that large-diameter antennas and low-frequency beam widths are required for directional transmission of measurement frames.
- the first measurement frame can be transmitted from the first station 101 to the second station 102 through the direct path 104 between the first station 101 and the second station 102, and the first measurement frame can also be transmitted from the first station 101 to the passive target 103 and After being reflected by the passive target 103 , it is transmitted to the second station 102 .
- the second measurement frame can be transmitted from the second station 102 to the first station 101 through the direct path 104 between the first station 101 and the second station 102, and the second measurement frame can also be transmitted from the second station 102 to the passive target 103 and After being reflected by the passive target 103 , it is transmitted to the first station 101 .
- the second station 102 Due to the existence of the minimum inter-frame space (SIFS, short interframe space), that is, the existence of the minimum time interval between adjacent frames, after receiving the first measurement frame, the second station 102 has to wait a preset time interval to send The first station 101 sends the second measurement frame, and after the first station 101 receives the second measurement frame, it sends the first measurement frame (that is, the one sent in the next sensing measurement) to the second station 102 at a preset time interval.
- the first measurement frame that is, the time interval between two adjacent perceptual measurements is a preset time interval, and the preset time interval is equal to or greater than the minimum inter-frame interval.
- the first site 101 sends the first measurement frame to the second site 102, the second site 102 receives the first measurement frame, and after the SIFS time passes, the second site 102 sends the second measurement frame to the first site 101, and the first site 101 After receiving the second measurement frame and after the SIFS time elapses, the above process is repeated until M times of sensing measurements are completed.
- sensing measurement advance information may also be sent in each sensing measurement, and sensing measurement advance information may also be sent during the last sensing measurement to inform the second site that the sensing measurement process ends.
- the process of M times of perception measurement between the first station 101 and the second station 102 may also be as follows:
- the first station 101 sends a sensing measurement trigger frame to the second station 102
- the second station 102 sends a second measurement frame to the first station 101 after a preset time interval after receiving the sensing measurement trigger frame
- the first station 101 receives the second measurement frame.
- the sensory measurement preview frame is sent to the second site 102
- the first site 101 sends the first measurement frame to the second site 102
- the second site 102 receives it
- one sensing measurement is completed at this time, and the above process is repeated until M times of sensing measurement are completed.
- the time interval between two adjacent sensing measurements is a preset time interval.
- the preset time interval is greater than or equal to the minimum inter-frame interval.
- the first station 101 After completing M times of sensing measurements, the first station 101 receives M second measurement frames, the second station 102 receives M first measurement frames, and the first station 101 obtains channel state information according to the M second measurement frames (CSI), and determine Z groups of second measurement results according to the acquired channel state information, Z groups of second measurement results are in one-to-one correspondence with Z second transmission paths, and each group of second measurement results includes the corresponding second transmission path. Angle of arrival, relative transmission delay and Doppler shift.
- the second station 102 obtains channel state information (CSI) according to the M first measurement frames, and determines N groups of first measurement results according to the obtained channel state information, where the N groups of first measurement results are identical to the N first transmission paths.
- CSI channel state information
- each group of first measurement results includes the angle of arrival, relative transmission delay and Doppler frequency shift of the corresponding first transmission path.
- the arrival angle of the transmission path refers to the direction in which the measurement frame on the transmission path enters the station.
- the first transmission path is a path through which the first measurement frame is transmitted between the first station 101 and the second station 102 .
- the path for the first measurement frame to be transmitted between the first site 101 and the second site 102 may include the direct path 104 between the first site 101 and the second site 102, the Reflection path 105 of passive target 103 .
- the second transmission path is a path through which the second measurement frame is transmitted between the second station 102 and the first station 101 .
- the path for the second measurement frame to be transmitted between the second site 102 and the first site 101 includes the direct path 104 between the second site 102 and the first site 101, passing through no Reflection path 105 of source target 103 .
- a preset time interval is passed. Time interval, start to perform M times of sensing measurements with the second station 102, that is, send the first measurement frame.
- the preset time interval is equal to or greater than the minimum inter-frame interval.
- the The channel state information (CSI) is obtained from the measurement frame, and the principle of determining the Z group of second measurement results according to the channel state information obtained from the M second measurement frames will be described. Since the first measurement frame and the second measurement frame are both NDP frames, the first measurement frame is the first NDP frame, and the second measurement frame is the second NDP frame.
- the second NDP frame on the z-th second transmission path is at The phase difference introduced on the channel state information (CSI) between adjacent antennas is:
- ⁇ z is the phase difference introduced by the second NDP frame on the z-th second transmission path on the CSI between adjacent antennas
- ⁇ is the carrier wavelength of the second NDP frame on the z-th second transmission path
- z is used to indicate the number of the second transmission path, 1 ⁇ z ⁇ Z
- Z is the number of the second transmission path. It should be noted that Z here is an assumed value, and the actual value of Z is obtained by calculation.
- a second frame NDP Disposed adjacent subcarrier frequency interval of the second frame NDP ⁇ f, the transmission delay [tau] z and ToF is in the z-th second transmission path a second frame NDP introduced a phase difference between adjacent subcarriers for:
- ⁇ z is the phase difference between adjacent subcarriers introduced by the transmission delay ToF is ⁇ z and the second NDP frame on the z th second transmission path
- ⁇ z is the z th second transmission path
- the transmission delay ToF of the second NDP frame above, j is an imaginary unit.
- the Doppler frequency shift caused by the reflection of the second NDP frame on the zth second transmission path by the passive target on the zth second transmission path is:
- v z is the velocity component of the passive target on the z-th second transmission path along the angle bisector of the reflection angle
- the reflection angle is composed of the first site and the passive target on the z-th second transmission path The angle formed by the line segment and the line segment formed by the second station and the passive target on the zth second transmission path.
- the Doppler frequency shift results in the following phase difference between the CSI of two adjacent second NDP frames on the zth second transmission path:
- D z is the phase difference between the CSI of two adjacent second NDP frames on the z-th second transmission path caused by Doppler frequency shift
- ⁇ T is the z-th second transmission path. time interval of the second NDP frame.
- the superimposed CSI i,b,k of the kth subcarrier corresponding to the bth antenna in the ith measurement on the Z second transmission paths is:
- ⁇ z is the amplitude attenuation corresponding to the second NDP frame on the zth second transmission path.
- CSI(i) [CSI i,b,k CSI i,b,k+1 ...CSI i,b,k+K-1 CSI i,b+1,k CSI i,b+1,k+1 ... CSI i,b+K-1,k+K-1 ] T
- S is an MKB ⁇ Z matrix
- X is a Z ⁇ P matrix
- zth column of the S matrix can be written as:
- a peak in the spectrum value P( ⁇ , ⁇ ,f D ) corresponds to a second transmission path
- the corresponding ⁇ , ⁇ and f D at the peak value are the angle of arrival and the relative transmission delay of the corresponding second transmission path. time and Doppler shift. Therefore, the spectral value P( ⁇ , ⁇ ,f D ) is solved, and the corresponding ⁇ , ⁇ and f D at the peak in the spectral value P( ⁇ , ⁇ ,f D ) are determined as the corresponding second transmission at the peak Path's angle of arrival, relative transmission delay, and Doppler shift. There are several second transmission paths for several peaks in the spectral value P( ⁇ , ⁇ ,f D ).
- the first site sends the first measurement frame to the second site in omnidirectional and multi-frame times, so that the first measurement can be performed as many times as possible. Cover the transmission path between the first site and the second site.
- the second site adopts omnidirectional and multiple times to send the second measurement frame to the first site, so that the second measurement frame can cover as much as possible from the second site to the second site.
- the transmission path between the first stations in this way, the Z group measurement results determined by the first station according to the received multiple second measurement frames correspond to as many transmission paths as possible between the second station and the first station.
- the N groups of measurement results determined by the second station according to the multiple first measurement frames received correspond to as many transmission paths as possible between the first station and the second station, that is, it can detect as many non-
- the path information of the source target is used to determine the position and instantaneous velocity of multiple passive targets.
- FIG. 6 is a schematic flowchart of an interaction method for a perception measurement report provided by an embodiment of the present application. As shown in FIG. 6 , the process of determining the position and instantaneous speed of the passive target 103 includes the following steps:
- the second site 102 generates perceptual measurement report information according to N groups of first measurement results, where the N groups of first measurement results are in one-to-one correspondence with N first transmission paths between the first site 101 and the second site 102,
- a set of first measurement results includes the angle of arrival, relative transmission delay and Doppler frequency shift of the corresponding first transmission path.
- the second station 102 may also send the round-trip time of the last sensing measurement in the M times of sensing measurements to the first station 101 .
- the N first transmission paths between the first site 101 and the second site 102 refer to the transmission paths of the first measurement frame between the first site 101 and the second site 102, and the first measurement frame
- the transmission path between the first site 101 and the second site 102 has been described above, and thus will not be repeated here. It should be noted that N is an integer greater than 0.
- the perceptual measurement report information may also include measurement result group number information, where the measurement result group number information is used to indicate the group number N of the first measurement result, so that after the first station receives the perceptual measurement report information, according to the measurement carried in it
- the result group number information can quickly determine the group number of the first measurement result carried in it.
- the perception measurement report information may also include report type information, where the report type information is used to indicate the type of the perception measurement report information. In this way, after the first station receives the perception measurement report information, it can quickly determine whether to receive the report type information carried in it.
- the received information is perception measurement report information.
- the sensing measurement report information may further include carrier frequency offset parameter information, where the carrier frequency offset parameter information is used to indicate the offset of the carrier frequency.
- the offset of the carrier frequency is a pre-estimated error value, and the frequency of the carrier carrying the sensing measurement report information can be corrected by the offset of the carrier frequency.
- the perception measurement report information may further include at least one of public response information, dialog password information, departure time, arrival time, departure time error, arrival time error, and security LTF parameters. in,
- the dialog password information is used to indicate the serial number of the current dialog with the first site, that is, to indicate to the first site which dialog the current dialog is.
- the departure time is used to indicate the time when the second station sends the sensing measurement report information.
- the arrival time is used to indicate the arrival time of the information sent by the opposite station to the second station.
- the departure time error is used to indicate the accuracy of the departure time, and the departure time error is a pre-estimated error value.
- Arrival time error the accuracy of the arrival time indicated by the user, the arrival time error is a pre-estimated error value.
- Perceptual measurement report information is used to determine the position and instantaneous velocity of the passive target.
- the perceptual measurement report information may be carried in a media medium for transmission.
- the media medium may be, for example, a position measurement report frame, a predefined frame, or a predefined element, which is not specifically limited in this application.
- the manner of carrying the sensing measurement report information in the media medium will be described by taking an example.
- the LMR frame carries the sensory measurement report information
- the LMR frame carries the sensory measurement report information in the following manner:
- the measurement result group number field and the measurement result field are added to the LMR frame, so that the structure of the LMR frame is shown in Figure 7, including the type field, public response field, dialog password field, departure time field, arrival time field, and departure time error , Arrival Time Error Field, Carrier Frequency Offset Parameter Field, Security LTF Parameter Field, Measurement Result Group Number Field, and Measurement Result Field, where:
- the value of the type field is a first value, and the first value indicates that the type of the position measurement report frame is a perception measurement report frame.
- the value of the measurement result field is the N groups of first measurement results in the sensing measurement report information, the value of the measurement result group number field is the group number N of the first measurement results in the sensing measurement report information, and the value of the carrier frequency offset parameter field. The value is the offset of the carrier frequency in the sensing measurement report information.
- the values of other fields in the LMR frame are the corresponding information in the sensing measurement report information, which will not be described in detail here.
- each field in FIG. 7 represents the number of bytes in the corresponding field, and each byte is 8 bits.
- Each field in Figure 7 shows its English below the Chinese.
- the way that the predefined frame carries the sensing measurement report information is:
- a predefined frame is set according to design requirements, and the sensing measurement report information is carried through the predefined frame.
- the predefined frame includes a type field, a measurement result field, a measurement result group number field, a carrier frequency offset parameter field, a common response field, and a dialog password field. in:
- the value of the type field is a second value, and the second value indicates that the type of the predefined frame is a perceptual measurement report frame.
- the value of the measurement result field is the N groups of first measurement results in the sensing measurement report information
- the value of the measurement result group number field is the group number N of the first measurement results in the sensing measurement report information
- the value of the carrier frequency offset parameter field is the offset of the carrier frequency in the sensing measurement report information.
- the values of other fields in the predefined frame are the corresponding information in the sensing measurement report information, which will not be described in detail here.
- each field in FIG. 8 represents the number of bytes in the corresponding field, and each byte is 8 bits.
- Each field in Figure 8 shows its English below the Chinese.
- the manner in which the predefined element carries the sensing measurement report information is:
- the predefined elements may include an element identification field, a measurement result field, a measurement result group number field and a carrier frequency offset parameter field, an element length field, an element ID extension field, and a dialog password field. in:
- the value of the element identification field is a third value to indicate that the type of the predefined element is a perceptual measurement report element.
- the value of the measurement result field is the N groups of first measurement results in the sensing measurement report information
- the value of the measurement result group number field is the number N of groups of the first measurement results in the sensing measurement report
- the value of the carrier frequency offset parameter field is.
- the value is the offset of the carrier frequency in the sensing measurement report information.
- the value of the element length field is a predetermined length of the element.
- the value of the element ID extension field is the subtype of the element extension.
- the value of the dialogue password is the dialogue password information in the perception measurement report information.
- each field in Figure 9 represents the number of bytes in the corresponding field, and each byte is 8 bits.
- Each field in Figure 9 shows its English below the Chinese.
- first numerical value may be set according to communication rules, etc., which are not specially limited in this application.
- the manner in which the above-mentioned media medium carries the sensing measurement report information is only exemplary, and is not intended to limit the present application.
- the second station sends sensing measurement report information to the first station.
- the second site sends the media medium carrying the perception measurement report information to the first site.
- the first station receives the sensing measurement report information.
- the first station receives the media medium, and acquires the perception measurement report information from the media medium.
- the first station acquires the arrival angles, relative transmission delays and Doppler frequency shifts of the N first transmission paths according to the sensing measurement report information.
- the first site can be based on The angle of arrival, relative transmission delay and Doppler frequency shift of each of the N first transmission paths in the N groups of first measurement results determine the passive targets corresponding to the N first transmission paths.
- Position and Instantaneous Velocity enabling the measurement of the position and instantaneous velocity of multiple passive targets.
- FIG. 10 is a schematic flowchart of a first station determining a position and an instantaneous speed of a passive target according to an embodiment of the present application. As shown in Figure 10, including:
- Step 1001 according to the arrival angles of the N first transmission paths ( ⁇ 1 in FIG. 1 ), the relative transmission delay and Doppler frequency shift, and the arrival angles of the Z second transmission paths ( ⁇ 2 in FIG. 1 ) , relative transmission delay and Doppler frequency shift to determine the first transmission path and the second transmission path of the same passive target, so as to obtain the first transmission path and the second transmission path of each passive target.
- the second transmission path is the second measurement frame between the second station and the second station.
- the first transmission path and the second transmission path of the passive target on the overlapping path can be determined by determining the overlapping first transmission path and the second transmission path.
- the path coincidence The first transmission path and the second transmission path, that is, the first transmission path and the second transmission path that determine the same passive target.
- the direction in which the first transmission path enters the second site is opposite to the direction in which the second transmission path enters the first site, and the relative transmission delay of the first transmission path is equal to
- the Doppler frequency shift is the same as the relative transmission delay and Doppler frequency shift of the second transmission path. Therefore, the principle of determining the overlapping first transmission path and the second transmission path is: if the transmission of a first transmission path is relatively If the delay and Doppler frequency domains are the same as the relative transmission delay and Doppler frequency shift of a second transmission path, it is determined that the first transmission path and the second transmission path coincide. In this way, the first transmission path and the second transmission path of the same passive target can be obtained by matching the relative transmission delay and Doppler frequency shift of the first transmission path and the second transmission path.
- the two passive targets are symmetrical based on the straight line connecting the first station 101 and the second station 102, then although the positions of the two passive targets are different, due to the distance between the transmission paths passing through the two passive targets are the same, so the relative propagation delays and Doppler shifts of the four transmission paths through the two passive targets are the same. In this way, when matching the overlapping first transmission paths and the second transmission paths, there are cases where one first transmission path matches with multiple second transmission paths, and one second transmission path matches with multiple first transmission paths.
- a first ray can be drawn according to the opposite direction of the angle of arrival along the first transmission path, and the angle of arrival along each of the second transmission paths is opposite Draw a second ray in the direction of , if a first ray and a second ray have a focal point, it is determined that the first transmission path corresponding to the first ray with the focal point coincides with the second transmission path corresponding to the second ray.
- the principle of determining the overlapping first transmission path and the second transmission path is the same as above, and therefore will not be repeated here.
- Step 1002 according to the angle of arrival and relative transmission delay of the first transmission path of each passive target, the angle of arrival and relative transmission delay of the second transmission path, and the position of the first site and/or the second site, determine respectively.
- the location of each passive target according to the angle of arrival and relative transmission delay of the first transmission path of each passive target, the angle of arrival and relative transmission delay of the second transmission path, and the position of the first site and/or the second site, determine respectively. The location of each passive target.
- the arrival angle of the first transmission path of a passive target is the angle between the straight line connecting the passive target and the second site and the horizontal line
- the arrival angle of the second transmission path of a passive target is The angle between the straight line and the horizontal line between the passive target and the first station.
- the position of the first station is known, then according to the position of the first station, the relative transmission delay, the angle of arrival of the first transmission path and the angle of arrival of the second transmission path, the direct path between the first station and the second station Combined with geometric principles, the position of the second station is calculated, and then, according to the position of the second station and the position of the first station, combined with the arrival angle of the first transmission path and the arrival angle of the second transmission path, determine the passive target. Location.
- the position of the passive target can be determined in the absence of a direct path between the first station and the second station, given the known positions of the first station and the second station.
- the position of the passive target needs to be determined in the case that the first station and the second station have a direct path.
- Step 1003 Determine the instantaneous speed of each passive target according to the Doppler frequency shift of the first transmission path or the Doppler frequency shift of the second transmission path of each passive target, and the carrier wavelength of the measurement frame.
- the Doppler frequency shift of the first transmission path of the passive target is the same as the Doppler frequency shift of the second transmission path. Therefore, according to the Doppler frequency shift of the passive target.
- the Doppler shift of the first transmission path or the Doppler shift of the second transmission path calculates the instantaneous velocity of the passive target.
- v is the instantaneous velocity of the passive target
- ⁇ is the carrier wavelength
- f D is the Doppler frequency shift of the first transmission path or the Doppler frequency shift of the second transmission path of the passive target.
- the first transmission path and the second transmission path whose paths overlap can be quickly determined that is, the same passive transmission path can be determined.
- the first transmission path and the second transmission path of the target, and the position of the same passive target are determined according to the arrival angle and the relative transmission delay of the overlapping first transmission path and the second transmission path, and the position determination steps are simple and easy to execute.
- the instantaneous speed of the passive target can be calculated through the Doppler frequency shift of the first transmission path or the second transmission path of the passive target, and the steps are simple and easy to execute.
- the positions and instantaneous velocities of the plurality of passive targets can be determined through the plurality of first transmission paths and the plurality of second transmission paths.
- the improvement is improved. Accuracy of position measurements of passive targets and robustness of the system.
- the sensory measurement request is taken as the sensory measurement request frame
- the response information based on the sensory measurement request is the sensory measurement response frame
- the sensory measurement preview frame is an empty data packet preview frame (NDPA frame)
- the first measurement frame is the first NDP frame ( The first empty data packet frame)
- the second measurement frame is the second NDP frame (the second empty data packet frame)
- the first station is the first WiFi device Taking the second station as the second WiFi device as an example, the process of determining the position and instantaneous speed of the passive target in FIG. 11 will be described.
- two passive targets are included between the first WiFi device 1101 and the second WiFi device 1102 , which are a passive target 1103 and a passive target 1104 respectively.
- the first WiFi device 1101 sends a sensing measurement request frame to the second WiFi device 1102, where the sensing measurement request frame carries the time period during which the first WiFi device 1101 can perform sensing measurement, channel information, the first WiFi device 1101 and the second WiFi device Information such as the maximum number of perceptual measurements that can be performed between 1102.
- the second WiFi device 1102 receives the sensing measurement request frame, sends an ACK frame to the first WiFi device 1101 after the SIFS time, and determines whether to support the request of the first WiFi device 1101 according to the information carried in the sensing measurement request frame, and if so, then Send a sensing measurement response frame to the first WiFi device 1101 based on the information carried in the sensing measurement request frame, where the sensing measurement response frame carries the first time period, that is, the time period during which the first WiFi device 1101 can perform sensing measurement and the second WiFi device 1102 Intersection of time periods during which sensory measurements can be made.
- the first WiFi device 1101 receives the sensing measurement response frame, and sends an ACK frame to the second WiFi device after the SIFS time has elapsed, and thus the negotiation process is completed.
- the first WiFi device 1101 sends an NDPA frame to the second WiFi device 1102 to inform the second WiFi device 1102 that the perception measurement is to be performed next.
- the number of perceptual measurements or measurement termination information is carried in the NDPA frame to inform the second WiFi device 1102 of the repeated interaction times of perceptual measurement or measurement termination information.
- the second WiFi device 1102 receives the NDPA frame.
- the first WiFi device 1101 sends the first NDP frame to the second WiFi device 1102 after the SIFS time elapses after sending the NDPA frame
- the second WiFi device 1102 receives the first NDP frame and sends the second WiFi device 1101 to the first WiFi device 1101 after the SIFS time.
- NDP frame the first WiFi device 1101 receives the second NDP frame, and then repeats the above measurement process multiple times, and in the subsequent measurement process, the first WiFi device 1101 no longer sends the NDPA frame to the second WiFi device 1102, but directly sends NDP frame until the number of measurements between the first WiFi device 1101 and the second WiFi device 1102 reaches the specified number of measurements or the negotiated number of measurements.
- the first NDP frame can pass through the direct path 1105 between the first WiFi device 1101 and the second WiFi device 1102, and the reflected path between the first WiFi device 1101 and the second WiFi device 1102 (that is, through the passive path 1105).
- the reflection path 1107 of the target 1103 and the reflection path 1106 through the passive target 1104) are transmitted from the first WiFi device 1101 to the second WiFi device 1102, and the second NDP frame can pass between the first WiFi device 1101 and the second WiFi device 1102.
- the direct path 1105, the reflected path between the first WiFi device 1101 and the second WiFi device 1102 are transmitted from the second WiFi device 1102 to the first WiFi device 1101.
- the first WiFi device 1101 determines two sets of second measurement results according to the received second NDP frame
- the second WiFi device 1102 determines two sets of second measurement results according to the received second NDP frame.
- the first NDP frame of the determines two sets of first measurements.
- the two sets of second measurement results are in one-to-one correspondence with the two reflection paths 1106 and 1107 of the second NDP frame transmitted from the second WiFi device 1102 to the first WiFi device 1101 , and the second measurement result corresponding to the reflection path 1106 includes reflections The angle of arrival ⁇ 2 2 , relative transmission delay and Doppler shift of path 1106 .
- the second measurement result corresponding to the reflection path 1107 includes the arrival angle ⁇ 1 2 , the relative transmission delay and the Doppler frequency shift of the reflection path 1107 .
- the two sets of first measurement results correspond one-to-one with the two reflection paths 1106 and 1107 of the first NDP frame transmitted from the first WiFi device 1101 to the second WiFi device 1102 , and the first measurement result corresponding to the reflection path 1106 includes reflections The angle of arrival ⁇ 2 1 , relative transmission delay and Doppler shift of path 1106 .
- the first measurement result corresponding to the reflection path 1107 includes the arrival angle ⁇ 1 1 , the relative transmission delay and the Doppler frequency shift of the reflection path 1107 .
- the second WiFi device 1102 generates perceptual measurement report information according to the two sets of first measurement results, and sends the perceptual measurement report information to the first WiFi device 1101 .
- the first WiFi device 1101 obtains two sets of first measurement results from the perceptual measurement report information, and compares the propagation relative delay and Doppler frequency shift in each set of first measurement results with the propagation relative in each set of second measurement results.
- the delay and Doppler frequency shift are matched to determine the first transmission path and the second transmission path of the same passive target.
- the relative delay and Doppler frequency shift are combined with the above-mentioned methods to determine the position and instantaneous velocity of the two passive targets 1103, 1104.
- FIG. 12 shows an apparatus 1200 for exchanging perception measurement information provided by an embodiment of the present application.
- the apparatus may be the first site, the second site, or a chip or a processing system in the site in the foregoing embodiment, and may implement any Methods and functions of an embodiment.
- the perceptual measurement information interaction device may include one or more of the components shown in FIG. 12 .
- the components shown in FIG. 12 may include at least one processor 1201 , memory 1202 , transceiver 1203 , and communication bus 1204 .
- the processor 1201 is the control center of the measurement information interaction apparatus 1200, and may be a processor or a general term for multiple processing elements.
- the processor 1201 is a central processing unit (CPU), may also be a specific integrated circuit (Application Specific Integrated Circuit, ASIC), or is configured to implement one or more integrated circuits of the embodiments of the present application , for example: one or more microprocessors (digital signal processor, DSP), or, one or more field programmable gate arrays (Field Programmable Gate Array, FPGA).
- the processor 1201 can execute various functions of the measurement information interaction device by running or executing the software program stored in the memory 1202 and calling the data stored in the memory 1202.
- the processor 1201 may include one or more CPUs, such as CPU0 and CPU1 shown in FIG. 12 .
- the measurement information interaction apparatus 1200 may include multiple processors, such as the processor 1201 and the processor 1205 shown in FIG. 12 .
- processors can be a single-core processor (single-CPU) or a multi-core processor (multi-CPU).
- a processor herein may refer to one or more communication devices, circuits, and/or processing cores for processing data (eg, computer program instructions).
- the memory 1202 may be read-only memory (ROM) or other type of static storage communication device that can store static information and instructions, random access memory (RAM) or other type of static storage communication device that can store information and instructions. type of dynamic storage communication device, or a non-volatile readable storage medium, or an Electrically Erasable Programmable Read-Only Memory (Electrically Erasable Programmable Read-Only Memory,
- the memory 1202 can exist independently and is connected to the processor 1201 through the communication bus 1204 .
- the memory 1202 may also be integrated with the processor 1201. Wherein, the memory 1202 is used for storing the software program for executing the solution of the present application, and the execution is controlled by the processor 1201 .
- the transceiver 1203 is used for communication with other devices (eg, the station in the embodiment shown in FIG. 1 ). Of course, the transceiver 1203 can also be used to communicate with a communication network, such as an Ethernet, a radio access network (RAN), a wireless local area network (Wireless Local Area Networks, WLAN), and the like.
- the transceiver 1203 may include a receiving unit to implement a receiving function, and a transmitting unit to implement a transmitting function.
- the communication bus 1204 may be an industry standard architecture (Industry Standard Architecture, ISA) bus, an external communication device interconnect (Peripheral Component, PCI) bus, or an extended industry standard architecture (Extended Industry Standard Architecture, EISA) bus and the like.
- ISA Industry Standard Architecture
- PCI Peripheral Component
- EISA Extended Industry Standard Architecture
- the bus can be divided into address bus, data bus, control bus and so on. For ease of representation, only one thick line is shown in FIG. 12, but it does not mean that there is only one bus or one type of bus.
- the measurement information interaction apparatus 1200 is a complete device, and the measurement information interaction apparatus may include: a processor 1201, a memory 1202, a transceiver 1203 and a communication bus 1204, and optionally, may also include other components, such as displays.
- the measurement information interaction apparatus 1200 is a first site, and can be used to implement the methods and functions related to the first site in the foregoing embodiments.
- a computer program (instruction) is stored in the memory, and when the processor calls the computer program, the above-mentioned methods and functions are implemented. time and Doppler frequency shift, and the transceiver is configured to receive the sensing measurement report information sent by the second station.
- the processor is configured to control the transceiver to perform step S603.
- the measurement information interaction apparatus 1200 is a second site, and can be used to implement the methods and functions of the second site in the foregoing embodiments.
- a computer program is stored in the memory, and when the processor calls the computer program, the above methods and functions are implemented.
- the processor is used to generate sensing measurement report information according to N groups of first measurement results, and the transceiver is used to send sensing to the first site. Measurement report information.
- the processor is configured to control the transceiver to perform step S602.
- the measurement information interaction device 1200 is a chip or a processing system installed in the site, the chip or the processing system includes: a processor 1201, the processor 1201 is configured to execute instructions stored in the memory, so that the installation The chip or the site of the processing system performs the method of any of the above.
- the memory can be integrated into the chip or processing system, and is an on-chip storage unit; alternatively, the memory can be located outside the chip or processing system, and is coupled and connected to the chip or processing system, and is an off-chip storage unit.
- the measurement information interaction apparatus 1200 is a chip or a processing system installed in the first site, so that the first site executes the method involving the first site in any of the foregoing embodiments.
- a computer program (instruction) is stored in the memory, and when the processing system invokes the computer program, the first site is made to execute: receive the sensing measurement report information sent by the second site, and obtain N first site according to the sensing measurement report information The angle of arrival, relative transmission delay and Doppler shift of the transmission path.
- the measurement information interaction apparatus 1200 is a chip or a processing system installed in the second site, so that the second site executes the method involving the second site in any of the foregoing embodiments.
- a computer program (instruction) is stored in the memory, and when the processing system invokes the computer program, the second site is made to execute: generate perceptual measurement report information according to N groups of first measurement results, wherein the N groups of first measurement results are the same as the There is a one-to-one correspondence with the N first transmission paths between the first site and the second site, and each group of the first measurement results includes the angle of arrival, relative transmission delay, and Dopp of the corresponding first transmission path. frequency shift; sending the sensing measurement report information to the first station.
- the first site and the second site may be divided into functional modules according to the foregoing method examples.
- each functional module may be divided corresponding to each function, or two or more functions may be integrated into one processing unit. in the module.
- the above-mentioned integrated modules can be implemented in the form of hardware, and can also be implemented in the form of software function modules. It should be noted that, the division of modules in the embodiments of the present application is schematic, and is only a logical function division, and there may be other division manners in actual implementation.
- FIG. 13 shows a possible schematic structural diagram of a measurement information interaction apparatus 1300
- the measurement information interaction apparatus 1300 may be a first site or a second site
- the measurement information interaction apparatus 1300 The operations of the first site or the operations of the second site in the foregoing method embodiments may be performed.
- the communication device 1300 includes: a processing unit 1301 and a transceiver unit 1302 .
- the processing unit 1301 may be used to control and manage the actions of the measurement information interaction apparatus 1300 .
- the arrival angles, relative transmission delays and Doppler frequency shifts of the N first transmission paths are acquired according to the sensing measurement report information.
- the sensing measurement report information is generated according to the N groups of first measurement results.
- the operation of the transceiving unit 1302 is controlled.
- the processing unit 1301 may also execute programs or instructions stored in the storage unit, so that the measurement information interaction apparatus 1300 implements the methods and functions involved in any of the foregoing embodiments. .
- the above-described processing unit 1301 may control the transceiving unit 1302 to perform, for example, step S603 or step 602 in FIG. 6 and/or other processes for the techniques described herein.
- step S603 or step 602 in FIG. 6 and/or other processes for the techniques described herein.
- all relevant contents of the steps involved in the above method embodiments can be cited in the functional descriptions of the corresponding functional modules, which will not be repeated here.
- the above-mentioned transceiver unit 1302 may not only receive sensing measurement report information sent by the second station, but also may send sensing measurement report information.
- the transceiver unit 1302 may be a transceiver module, or may include multiple transceiver modules.
- the transceiving module can not only send sensing measurement report information, but also receive sensing measurement report information.
- the transceiving unit 1302 described above may be used to perform, for example, step 603 or step 602 in FIG. 6 and/or other processes for the techniques described herein. Wherein, all relevant contents of the steps involved in the above method embodiments can be cited in the functional descriptions of the corresponding functional modules, which will not be repeated here.
- the measurement information interaction apparatus 1300 may be the measurement information interaction apparatus shown in FIG. 12
- the processing unit 1301 may be the processor 1201 in FIG. 12
- the transceiver unit 1302 may be the transceiver 1203 in FIG. 12
- the communication device 1300 may further include a memory for storing program codes and program codes corresponding to the steps performed by the measurement information interaction device 1200 to perform the steps performed by the first site provided above or the steps performed by the second site. data.
- the descriptions of all the relevant contents of the components involved in the above-mentioned FIG. 12 can be referred to the functional descriptions of the corresponding components of the communication apparatus 1300 , which will not be repeated here.
- the measurement information interaction device 1300 may also be a chip or a processor, wherein the processing unit 1302 is a processing circuit in the chip or the processor, and the transceiver unit 1302 may be an input/output circuit in the chip or the processor.
- the output circuit is the interface for the chip or processor and other coupling components to communicate with each other or exchange data, which can ensure that signaling or data information or program instructions are input into the chip or processor for processing, and the processed data or signaling Output to other coupled components, and control the first multi-link device on which the chip or processor is installed to implement functions.
- Embodiments of the present application further provide a computer-readable storage medium, where computer program code is stored in the computer-readable storage medium, and when the processor executes the computer program code, the electronic device (such as the first site and a second site) to perform the method of any embodiment.
- the embodiments of the present application also provide a computer program product, which, when the computer program product runs on a computer, causes the computer (eg, the first site or the second site) to execute the method of any one of the embodiments.
- the embodiment of the present application also provides a measurement information interaction device, which can exist in the form of a chip, and the structure of the device includes a processor and an interface circuit, and the processor is used for communicating with other devices through a receiving circuit, so that the device
- the apparatus performs the above-described method of performing any of the embodiments.
- An embodiment of the present application further provides a communication system, where the communication system includes the above-mentioned first station and the second station, and the first station and the second station can execute the method in any of the above-mentioned embodiments.
- the steps of the methods or algorithms described in conjunction with the disclosure of the present application may be implemented in a hardware manner, or may be implemented in a manner in which a processor executes software instructions.
- the software instructions can be composed of corresponding software modules, and the software modules can be stored in random access memory (Random Access Memory, RAM), flash memory, Erasable Programmable Read-Only Memory (Erasable Programmable ROM, EPROM), electrically erasable programmable Programmable read-only memory (Electrically EPROM, EEPROM), registers, hard disk, removable hard disk, compact disk read only (CD-ROM), or any other form of storage medium known in the art.
- An exemplary storage medium is coupled to the processor, such that the processor can read information from, and write information to, the storage medium.
- the storage medium can also be an integral part of the processor.
- the processor and storage medium may reside in an ASIC.
- the ASIC may be located in the core network interface device.
- the processor and the storage medium may also exist in the core network interface device as discrete components.
- the functions described in this application may be implemented in hardware, software, firmware, or any combination thereof.
- the functions When implemented in software, the functions may be stored on or transmitted over as one or more instructions or code on a computer-readable medium.
- Computer-readable media includes both computer-readable storage media and communication media including any medium that facilitates transfer of a computer program from one place to another.
- a storage medium can be any available medium that can be accessed by a general purpose or special purpose computer.
- the disclosed system, apparatus and method may be implemented in other manners.
- the apparatus embodiments described above are only illustrative.
- the division of the units is only a logical function division. In actual implementation, there may be other division methods.
- multiple units or components may be combined or Can be integrated into another system, or some features can be ignored, or not implemented.
- the shown or discussed mutual coupling or direct coupling or communication connection may be through some interfaces, indirect coupling or communication connection of devices or units, and may be in electrical, mechanical or other forms.
- the units described as separate components may or may not be physically separated, and components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution in this embodiment.
- each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically alone, or two or more units may be integrated into one unit.
- the functions, if implemented in the form of software functional units and sold or used as independent products, may be stored in a computer-readable storage medium.
- the technical solution of the present application can be embodied in the form of a software product in essence, or the part that contributes to the prior art or the part of the technical solution.
- the computer software product is stored in a storage medium, including Several instructions are used to cause a computer device (which may be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of the present application.
- the aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (Read-Only Memory, ROM), random access memory (Random Access Memory, RAM), magnetic disk or optical disk and other media that can store program codes .
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Abstract
本申请提供了一种感知测量信息交互装置,应用于第一站点,包括:收发单元,用于接收第二站点发送的感知测量报告信息;所述感知测量报告信息包括N组第一测量结果,其中,所述N组第一测量结果与所述第一站点和所述第二站点之间的N个第一传输路径一一对应,每组所述第一测量结果均包括所对应的第一传输路径的到达角度、传输相对延时和多普勒频移;处理单元,用于根据所述感知测量报告信息获取N个第一传输路径的到达角度、传输相对延时和多普勒频移。本申请实现了多个无源目标的位置和瞬时速度的测量。
Description
本申请要求于2020年7月1日提交中国专利局、申请号为202010625247.8、申请名称为“感知测量信息交互装置”的中国专利申请的优先权,其全部内容通过引用结合在本申请中。
本申请涉及通信技术领域,具体涉及一种感知测量信息交互装置。
雷达已经被广泛应用于目标探测技术领域,雷达探测的原理为:雷达发射系统发出一个特定的电磁波信号,该电磁波信号在传播过程中遇到目标会发生反射,雷达接收系统接收反射回来的信号,并将反射回来的信号与发射信号进行比对处理后计算出目标的距离、移动速度和方位等信息。
随着科技的发展,wifi设备已经被广泛使用,由于WiFi设备的主要结构与雷达设备的基本结构类似,因此,可在WiFi设备中引入雷达技术,使WiFi设备在完成通信功能的同时也具备探测的能力。
目前,现有的通过wifi设备对目标进行探测的方式中,仅仅可以定位无源目标的位置,无法确定无源目标的瞬时速度。
发明内容
本申请实施例公开了一种感知测量信息交互方法及其装置,用于定位无源目标的位置和瞬时速度。
第一方面,提供了一种感知测量信息交互方法,包括:第一站点接收第二站点发送的感知测量报告信息;所述感知测量报告信息包括N组第一测量结果,其中,所述N组第一测量结果与所述第一站点和所述第二站点之间的N个第一传输路径一一对应,每组所述第一测量结果均包括所对应的第一传输路径的到达角度、传输相对延时和多普勒频移;第一站点根据所述感知测量报告信息获取N个第一传输路径的到达角度、传输相对延时和多普勒频移。
由于感知测量报告信息包括N组第一测量结果,且一个测量结果中包括对应的第一传输路径的到达角度、传输相对延时和多普勒频移,使得第一站点可以基于N组第一次测量结果中的N个第一传输路径中的每个第一传输路径的到达角度、传输相对延时和多普勒频移确定N个第一传输路径对应的无源目标的位置和瞬时速度,并实现了多个无源目标的位置和瞬时速度的测量。
第二方面,提供一种感知测量信息交互方法,包括:第二站点根据N组第一测量结果生成感知测量报告信息,其中,所述N组第一测量结果与第一站点和所述第二站点之间的 N个第一传输路径一一对应,每组所述第一测量结果均包括所对应的第一传输路径的到达角度、传输相对延时和多普勒频移;第二站点向所述第一站点发送所述感知测量报告信息。
第三方面,提供了一种感知测量信息交互装置,应用于第一站点,包括:收发单元,用于接收第二站点发送的感知测量报告信息;所述感知测量报告信息包括N组第一测量结果,其中,所述N组第一测量结果与所述第一站点和所述第二站点之间的N个第一传输路径一一对应,每组所述第一测量结果均包括所对应的第一传输路径的到达角度、传输相对延时和多普勒频移;处理单元,用于根据所述感知测量报告信息获取N个第一传输路径的到达角度、传输相对延时和多普勒频移。
第四方面,提供了一种感知测量信息交互装置,应用于第二站点,包括:处理单元,用于根据N组第一测量结果生成感知测量报告信息,其中,所述N组第一测量结果与第一站点和所述第二站点之间的N个第一传输路径一一对应,每组所述第一测量结果均包括所对应的第一传输路径的到达角度、传输相对延时和多普勒频移;收发单元,用于向所述第一站点发送所述感知测量报告信息。
第五方面,提供一种感知测量信息交互装置,包括处理器和存储器,所述存储器存储指令,当所述指令被所述处理器运行时,以使得所述感知测量信息交互装置执行:接收第二站点发送的感知测量报告信息;所述感知测量报告信息包括N组第一测量结果,其中,所述N组第一测量结果与所述第一站点和所述第二站点之间的N个第一传输路径一一对应,每组所述第一测量结果均包括所对应的第一传输路径的到达角度、传输相对延时和多普勒频移;根据所述感知测量报告信息获取N个第一传输路径的到达角度、传输相对延时和多普勒频移。
第六方面,提供一种感知测量信息交互装置,包括处理器和存储器,所述存储器存储指令,当所述指令被所述处理器运行时,以使得所述感知测量信息交互装置执行:根据N组第一测量结果生成感知测量报告信息,其中,所述N组第一测量结果与第一站点和所述第二站点之间的N个第一传输路径一一对应,每组所述第一测量结果均包括所对应的第一传输路径的到达角度、传输相对延时和多普勒频移;向所述第一站点发送所述感知测量报告信息。
上述任一方面的方法或装置的一种实现方式中,所述感知测量报告信息还包括:测量结果组数信息,所述测量结果组数信息用于指示所述第一测量结果的组数N。
上述任一方面的方法或装置的一种实现方式中,所述感知测量报告信息还包括:报告类型信息,所述报告类型信息用于指示所述感知测量报告信息的类型。
上述任一方面的方法或装置的一种实现方式中,所述感知测量报告信息还包括:载波频偏参数信息,所述载波频偏参数信息用于指示载波频率的偏移量。
上述任一方面的方法或装置的一种实现方式中,所述感知测量报告信息承载于位置测量报告帧中,其中,所述位置测量报告帧新增了测量结果字段和测量结果组数字段,所述测量结果字段的取值为所述N组第一测量结果,所述测量结果组数字段的取值为所述第一测量结果的组数N,所述位置测量报告帧中的类型字段的取值为第一数值,以指示所述位置测量报告帧的类型为感知测量报告帧,所述位置测量报告帧中的载波频偏参数字段的取值为所述载波频率的偏移量;或者所述感知测量报告信息承载于一预定义帧中,其中,所述预定义帧包括类型字段、测量结果字段、测量结果组数字段和载波频偏参数字段,所述 类型字段的取值为第二数值,以指示所述预定义帧的类型为感知测量报告帧,所述测量结果字段的取值为所述N组第一测量结果,所述测量结果组数字段的取值为所述第一测量结果的组数N,所述载波频偏参数字段的取值为所述载波频率的偏移量;或者所述感知测量报告信息承载于一预定义元素中,其中,所述预定义元素包括元素标识字段、测量结果字段、测量结果组数字段和载波频偏参数字段,所述元素标识字段的取值为第三数值,以指示所述预定义元素的类型为感知测量报告元素,所述测量结果字段的取值为所述N组第一测量结果,所述测量结果组数字段的取值为所述第一测量结果的组数N,所述载波频偏参数字段的取值为所述载波频率的偏移量。
上述第一或第三或第五方面的方法或装置的一种实现方式中,在接收第二站点发送的感知测量报告信息之前,与所述第二站点进行M次感知测量,其中,每次所述感知测量均包括:向所述第二站点发送第一测量帧;接收所述第二站点发送的第二测量帧。
上述第一或第三方面或第五的方法或装置的一种实现方式中,在与所述第二站点进行M次感知测量之前,向所述第二站点发送感知测量预告信息,其中,所述感知测量预告信息用于指示所述第二站点进行感知测量。
上述第一或第三方面或第五的方法或装置的一种实现方式中,在与所述第二站点进行M次感知测量之前,在第一时刻向所述第二站点发送感知测量预告信息,所述第一时刻为第一时间段中的一个时刻,所述第一时间段为所述第一站点能够进行感知测量的时间段与所述第二站点能够进行感知测量的时间段的交集。
上述第一或第三方面或第五的方法或装置的一种实现方式中,在向所述第二站点发送感知测量预告信息之前,向所述第二站点发送感知测量请求,所述感知测量请求携带所述第一站点能够进行感知测量的时间段、信道信息、所述第一站点和所述第二站点之间能够进行的感知测量的最大次数;其中,所述感知测量的最大次数大于或等于所述M;接收所述第二站点基于所述感知测量请求发送的响应信息,所述响应信息携带所述第一时间段,其中,所述第一时间段为所述第一站点能够进行感知测量的时间段与所述第二站点能够进行感知测量的时间段的交集。
上述第一或第三方面或第五的方法或装置的一种实现方式中,还包括:根据在所述M次感知测量中接收到的M个第二测量帧确定Z组第二测量结果,所述Z组第二测量结果与所述第一站点和所述第二站点之间的Z个第二传输路径一一对应,每组所述第二测量结果均包括所对应的第二传输路径的到达角度、传输相对延时和多普勒频移;根据所述N个第一传输路径的到达角度、传输相对延时和多普勒频移和所述Z个第二传输路径的到达角度、传输相对延时和多普勒频移,确定每个无源目标的位置和瞬时速度,其中,所述无源目标位于所述传输路径上。
上述第一或第三方面或第五的方法或装置的一种实现方式中,确定无源目标的位置和瞬时速度包括:根据所述N个第一传输路径的到达角度、传输相对延时和多普勒频移和所述Z个第二传输路径的到达角度、传输相对延时和多普勒频移确定同一无源目标的所述第一传输路径和所述第二传输路径,以得到每个所述无源目标的第一传输路径和第二传输路径;根据每个所述无源目标的第一传输路径的到达角度和传输相对延时和第二传输路径的到达角度和传输相对延时、所述第一站点和/或所述第二站点的位置,分别确定每个所述无源目标的位置;根据每个所述无源目标的第一传输路径的多普勒频移或第二传输路径的 多普勒频移、所述测量帧的载波波长确定每个所述无源目标的瞬时速度。
通过N个第一传输路径的到达角度、传输相对延时和多普勒频移和Z个第二传输路径的到达角度、传输相对延时和多普勒频移确定同一无源目标的第一传输路径和第二传输路径,进而根据每个无源目标的第一传输路径的到达角度和传输相对延时和第二传输路径的到达角度和传输相对延时、第一站点和/或第二站点的位置,分别确定每个无源目标的位置,位置确定步骤简单,易于执行。通过无源目标的第一传输路径或者第二传输路径的多普勒频移即可计算无源目标的瞬时速度,步骤简单,易于执行。由于第一传输路径和第二传输路径均为多个,因此,多个第一传输路径和多个第二传输路径中重合的传输路径也为多个,且又由于无源目标在传输路径上,因此,通过多个第一传输路径和多个第二传输路径可以确定多个无源目标的位置和瞬时速度。另外,相比于现有技术中根据传输时间确定目标的位置的方式,由于本申请根据第一传输路径和第二传输路径的传输的相对传输延时和到达角度确定无源目标的位置,提高了无源目标的位置测量结果的准确度和系统的鲁棒性。
上述第二或第四方面或第六的方法或装置的一种实现方式中,在根据N组第一测量结果生成感知测量报告信息之前,与所述第一站点进行M次感知测量,其中,每次所述感知测量均包括:接收所述第一站点发送的第一测量帧;向所述第一站点发送第二测量帧。
上述第二或第四或第六方面的方法或装置的一种实现方式中,在与所述第一站点进行M次感知测量之前,接收所述第一站点发送的感知测量预告信息,其中,所述感知测量预告信息用于指示所述第二站点进行感知测量。
上述第二或第四或第六方面的方法或装置的一种实现方式中,在与所述第一站点进行M次感知测量之前,在第一时刻接收所述第一站点发送的感知测量预告信息,所述第一时刻为第一时间段中的一个时刻,所述第一时间段为所述第一站点能够进行感知测量的时间段与所述第二站点能够进行感知测量的时间段的交集。
上述第二或第四或第六方面的方法或装置的一种实现方式中,在接收所述第一站点发送的感知测量预告信息之前,接收所述第一站点发送的感知测量请求,所述感知测量请求携带所述第一站点能够进行感知测量的时间段、信道信息、所述第一站点和所述第二站点之间能够进行的感知测量的最大次数;其中,所述感知测量的最大次数大于或等于所述M;响应于所述感知测量请求向所述第一站点发送响应信息,所述响应信息携带所述第一时间段,其中,所述第一时间段为所述第一站点能够进行感知测量的时间段与所述第二站点能够进行感知测量的时间段的交集。
上述第二或第四或第六方面的方法或装置的一种实现方式中,还包括:根据在所述M次感知测量中接收到的M个第一测量帧确定N组第一测量结果。
上述任一方面的方法或装置的一种实现方式中,所述感知测量预告信息还携带所述感知测量的次数M和/或感知测量的终止信息。
上述任一方面的方法或装置的一种实现方式中,所述感知测量预告信息承载于空数据包预告帧中,其中:所述空数据包预告帧中的帧控制字段中的帧类型子字段的取值为第四数值,用于指示所述第二站点进行感知测量,所述空数据包预告帧的站点信息字段中的任一个子字段的取值为所述感知测量的次数M或所述感知测量的终止信息;或者所述空数据包预告帧的测量对话口令字段的预留比特的取值为第五数值,用于指示所述第二站点进 行感知测量,所述空数据包预告帧的站点信息字段中的任一个子字段的取值为所述感知测量的次数M或所述感知测量的终止信息;或者所述空数据包预告帧的站点信息字段的预留比特的一部分比特的取值为第六数值,用于指示所述第二站点进行感知测量,所述预留比特的另一部分比特的取值为所述感知测量的终止信息;或者所述空数据包预告帧的一个站点信息字段的预留比特的取值为第七数值,用于指示所述第二站点进行感知测量,所述空数据包预告帧的另一个站点信息字段的预留比特的取值为所述感知测量的次数M或所述感知测量的终止信息;或者所述空数据包预告帧中的站点信息字段中的关联标识子字段的取值为2008到2047之间的任一个整数,用于指示所述第二站点进行感知测量,所述站点信息字段中剩余字段的取值为所述感知测量的次数M或所述感知测量的终止信息。
上述第三方面、第四方面、第五方面和第六方面中的感知测量信息交互装置可以为芯片,处理单元可以为芯片的处理电路,收发单元可以为输入输出接口电路,处理电路可以用于处理由输入输出提供的信令或数据信息,输入输出接口电路可以用于为该芯片输入输出数据或信令信息。
本申请实施例的第七方面,提供一种计算机可读存储介质,所述计算机可读存储介质中存储有计算机程序代码,当所述计算机程序在处理器上运行时,使得所述处理器执行上述第一方面、第二方面中任一方面及对应可能的实现方式中的方法。
本申请实施例的第八方面,提供了一种计算机程序产品,该程序产品储存有上述处理器执行的计算机程序(指令),当所述计算机程序在处理器上运行时,使得所述处理器执行上述第一方面、第二方面中任一方面及对应可能的实现方式中的方法。
本申请实施例的第九方面,提供了一种感知测量信息交互装置,该装置包括处理器,还可以包括收发器以及存储器,收发器,用于收发信息,或者用于与其他网元或者设备通信;存储器,用于存储计算机程序(指令);处理器,用于执行所计算机程序,以支持感知测量信息交互装置实现上述第一方面、第二方面中任一方面及对应可能的实现方式中的方法。
本申请实施例的第十方面,提供了一种感知测量信息交互装置,该装置可以以芯片的产品形态存在,该装置的结构中包括处理器,还可以包括存储器,该存储器用于与处理器耦合,保存该装置必要的程序(指令)和数据,该处理器用于执行存储器中存储的计算机程序,以支持通信装置执行上述第一方面、第二方面中任一方面及对应可能的实现方式中的方法。可选的,该存储器可以位于处理器中,为内部存储,该处理器还可以位于该处理器外,与该处理器耦合链接,为外部存储。
图1为本申请实施例提供的感知测量的应用场景示意图一;
图2为本申请实施例提供的感知测量协商流程的示意图;
图3a为本申请实施例提供的未承载感知测量预告信息的空数据包预告帧的格式的示意图;
图3b为本申请实施例提供的测量对话口令字段的格式的示意图;
图3c为本申请实施例提供的站点信息字段的格式的示意图;
图4为本申请实施例提供的第一站点与第二站点之间的M次感知测量的示意图;
图5为本申请实施例提供的第一站点的天线示意图;
图6为本申请实施例提供的感知测量报告的交互方法的流程示意图;
图7为本申请实施例提供的LMR帧的结构示意图;
图8为本申请实施例提供的预定义帧的结构示意图;
图9为本申请实施例提供的预定义元素的结构示意图;
图10为本申请实施例提供的确定无源目标的位置和瞬时速度的流程示意图;
图11为本申请实施例提供的为本申请实施例提供的感知测量的应用场景示意图二;
图12为本申请实施例提供的一种感知测量信息交互装置的示意图;
图13为本申请实施例提供的一种测量信息交互装置的可能的结构示意图。
下面将结合附图,对本申请中的技术方案进行描述。
为使本申请的目的、技术方案和优点更加清楚,下面将结合本申请中的附图,对本申请中的技术方案进行清楚、完整地描述,显然,所描述的实施例是本申请一部分实施例,而不是全部的实施例。基于本申请中的实施例,本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施例,都属于本申请保护的范围。
本申请的说明书实施例和权利要求书及附图中的术语“第一”、“第二”等仅用于区分描述的目的,而不能理解为指示或暗示相对重要性,也不能理解为指示或暗示顺序。此外,术语“包括”和“具有”以及他们的任何变形,意图在于覆盖不排他的包含,例如,包含了一系列步骤或单元。方法、系统、产品或设备不必限于清楚地列出的那些步骤或单元,而是可包括没有清楚地列出的或对于这些过程、方法、产品或设备固有的其它步骤或单元。
应当理解,在本申请中,“至少一个(项)”是指一个或者多个,“多个”是指两个或两个以上。“和/或”,用于描述关联对象的关联关系,表示可以存在三种关系,例如,“A和/或B”可以表示:只存在A,只存在B以及同时存在A和B三种情况,其中A,B可以是单数或者复数。字符“/”一般表示前后关联对象是一种“或”的关系。“以下至少一项(个)”或其类似表达,是指这些项中的任意组合,包括单项(个)或复数项(个)的任意组合。例如,a,b或c中的至少一项(个),可以表示:a,b,c,“a和b”,“a和c”,“b和c”,或“a和b和c”,其中a,b,c可以是单个,也可以是多个。
首先,对相关技术中,通过wifi设备对目标进行探测的方式进行说明。具体的:
在相关技术一中,通过Fine Time Measurement(FTM,精确时间测量)探测目标,具体过程为:发送站点与接收站点之间进行多次交互,计算探测信号在两个站点之间传输的往返时间,然后,根据电磁波的传输速度并结合上述往返时间计算探测信号在发送站点和接收站点之间的传播距离。在发送站点和接收站点之间存在直射路径时,探测信号在发送站点和接收站点之间的传播距离为发送站点和接收站点之间的距离,在发送站点和接收站点之间不存在直射路径时,该方法无法测量发送站点和接收站点之间的距离。
在相关技术一中,在发送站点和接收站点之间不存在直射路径时,不能确定发送站点和接收站点之间的距离;另外,通过发送站点和接收站点之间的交互,确定发送站点和接收站点之间的距离,且接收站点和发送站点均为有源设备,即只能测量有源设备之间的距 离,无法测量无源设备之间的距离,即无法应用在对无源目标的定位上,且无法确定无源目标的瞬时速度;此外,由于依靠探测信号的传输时间来测距,由于带宽和室内多径信号的限制,时间测量的精度有限,而很小的时间误差,会带来较大的距离误差,因此,测距的精度不高。
在相关技术二中,发送站点朝着无源目标以特定方向发射探测信号,探测信号经过无源目标反射后被接收站点接收。接收站点计算探测信号的到达角度,并将探测信号的到达角度反馈给发送站点,发送站点根据探测信号的到达角度和发射角度并结合发送站点和接收站点的位置确定无源目标的位置。
显然,在相关技术二中,虽然可以确定无源目标的位置,但是由于不知道无源目标的方位,需要向多个不同方向重复扫描才能完成无源目标的探测,此外,由于发送站点和接收站点的天线个数、天线孔径和频带等限制,探测信号的方向性很差,导致探测信号的发射角度的精度较差,进而导致无源目标的定位精度差,另外,每次探测最多只能完成单个无源目标的测量,无法同时探测多个无源目标,且无法实现对无源目标的瞬时速度的测量。
在相关技术三中,发送站点全向发送探测信号,接收站点接收直射径信号和经过无源目标反射的反射信号组成的叠加信号。接收站点测量反射信号的到达角度、直射径信号和反射信号到达接收站点的时间差,再依据发送站点和接收站点的位置确定无源目标到达发送站点和接收站点的距离之和,从而确定无源目标在以发送站点和接收站点为焦点的椭圆上,结合反射信号的到达角度,将与到达角度的方向相反的射线与椭圆的交点确定为无源目标的位置。
在上述相关技术三中,由于带宽和室内多径环境的限制,时间测量的精度有限,导致距离测量结果有较大误差,从而使得定位精度不高,此外,该方法需要发送站点和接收站点之间必须存在直射径。另外,无法实现对无源目标的瞬时速度的测量。
综上,在相关技术一中,必须在发送站点和接收站点之间存在直射路径时进行有源设备之间的测距且测距精度低,无法直接用于无源目标的定位上。在相关技术二中,需要向多个不同方向重复扫描才能完成无源目标的探测,且在一次探测中只能定位一个无源目标,以及无源目标的定位精度差。在相关技术三中,发送站点和接收站点之间需要存在直射径才可进行无源目标的定位,且定位精度不高。此外,上述方式均不支持对无源目标的瞬时速度的测量。
为了解决上述问题,本申请提供了一种感知测量方法,该方法通过在两个站点之间进行双向多次的感知测量,并利用信道的互异性,实现对多个无源目标的位置和瞬时速度的确定。下面,对该感知测量方法的实现原理进行详细说明。
首先,对感知测量方法的应用场景进行说明。
图1为本申请实施例提供的感知测量方法的应用场景示意图一。如图1所示,该应用场景包括:第一站点101、第二站点102和至少一个无源目标103。
第一站点101和第二站点102均为包括多天线且能够测量接收信号的到达角度的设备,例如,wifi设备、笔记本电脑、手机等,本申请对此不作特殊限定。
无源目标103例如可以为人、动物、汽车等,本申请对此不作特殊限定。
在上述应用场景中,第一站点101和第二站点102之间可以进行多次感知测量,以及根据多次感知测量的结果确定至少一个无源目标103中的每个无源目标103的位置和瞬时 速度。由于感知测量的原理将在下文中进行说明,因此此处不再赘述。
需要说明的是,上述应用场景仅为示例性的,并不用于限定本申请。例如,在其他应用场景中,包括第一站点和多个第二站点,第一站点同时与每个第二站点进行多次感知测量,以及根据第一站点与每个第二站点的多次感知测量的结果分别确定第一站点与每个第二站点对应的至少一个无源目标的位置和瞬时速度。
下面,基于图1中示出的应用场景,对感知测量方法的具体实现过程进行说明。
感知测量方法主要包括三大流程,分别为协商流程、感知测量流程和结果交互流程,其中:
在协商流程中,在第一站点101需要感知无源目标103的位置和瞬时速度时,向第二站点102发送感知测量请求,以通过感知测量请求就感知测量流程中的相关信息进行协商。
感知测量流程包括测量预告子流程和感知测量子流程。其中:
在测量预告子流程中,第一站点101根据协商的感知测量流程中的相关信息,向第二站点102发送感知测量预告信息,以告知第二站点102接下来要执行感知测量子流程,可选的,感知测量预告信息中携带感知测量的次数和/或感知测量的终止信息等信息,以告知第二站点102感知测量子流程中感知测量的次数和/或感知测量的终止信息等信息。
在感知测量子流程中,第一站点101与第二站点102进行多次感知测量,其中,在每次感知测量中,第一站点101向第二站点102发送第一测量帧,以及第二站点102在接收到第一测量帧后,向第一站点101发送第二测量帧。第二站点102根据多次感知测量中接收到的多个第一测量帧确定N组第一测量结果,其中,N组第一测量结果与N个第一传输路径一一对应。每组第一测量结果均包括对应的第一传输路径的到达角度、传输相对延时和多普勒频移。第一传输路径为第一测量帧在第一站点101和第二站点102之间传输的路径。第一站点101根据多次感知测量中接收到的多个第二测量帧确定Z组第二测量结果,其中,Z组第二测量结果与Z个第二传输路径一一对应。每组第二测量结果均包括对应的第二传输路径的到达角度、传输相对延时和多普勒频移。第二传输路径为第二测量帧在第二站点101和第一站点102之间传输的路径。
在结果交互流程中,第二站点102将N组第一测量结果发送至第一站点101,第一站点101根据N组第一测量结果和Z组第二测量结果确定无源目标103的位置和瞬时速度,其中,无源目标103位于传输路径上。
需要说明的是,上述协商流程为可选流程,即可以在感知测量流程之前执行该流程,也可以不执行该流程,本申请对此不作特殊限定。上述感知测量流程中的测量预告子流程为可选流程,即可以在感知测量流程中执行该子流程,也可以不执行该子流程,本申请实施例对此不作特殊限定。
下面,对上述三大流程进行详细说明。
协商流程的过程具体如下:
第一站点101向第二站点102发送感知测量请求,感知测量请求携带第一站点101能够进行感知测量的时间段、信道信息、第一站点101和第二站点102之间能够进行的感知测量的最大次数;其中,信道信息包括中心频点和信道带宽,中心频点为中心载波的频率。通过发送信道信息,使第二站点102根据信道信息确定与第一站点101进行通信的信道的 相关信息。
第二站点102接收感知测量请求,并响应于感知测量请求,根据第一站点101能够进行感知测量的时间段和第二站点102能够进行感知测量的时间段,确定第一站点101能够进行感知测量的时间段与第二站点102能够进行感知测量的时间段的交集,即第一时间段,以及向第一站点101发送响应信息,其中,响应信息携带第一时间段。第一站点101接收响应信息,以及在响应信息中获取第一时间段。
在本申请的其他实施例中,感知测量请求还可以携带和空时流个数等信息,本申请实施例对此不作特殊限定。
感知测量请求例如可以为感知测量请求帧等,响应信息例如可以为感知测量响应帧等,本申请实施例对此不作特殊限定。
下面,结合图2,并以感知测量请求为感知测量请求帧,响应信息为感知测量响应帧为例对感知测量协商流程进行说明。
第一站点101向第二站点102发送感知测量请求帧;
可选的,第二站点102收到感知测量请求帧后,过SIFS时间向第一站点101回复ACK帧(确认帧);
第二站点102基于感知测量请求帧,向第一站点101发送感知测量响应帧;
可选的,第一站点101接收感知测量响应帧,过SIFS时间向第二站点102回复ACK帧(确认帧)。SIFS时间为最小帧间间隔。
由上可知,第一站点101通过向第二站点102发送感知测量请求,与第二站点102就感知测量的相关信息进行协商,以确保后续感知测量流程能够顺利的进行;第二站点102将响应信息发送至第一站点101,即将协商结果发送至第一站点101,以使第一站点101根据响应信息获取协商结果,以基于协商结果启动感知测量流程。
感知测量流程的具体过程如下:
针对测量预告子流程:
第一站点101向第二站点102发送感知测量预告信息,其中,感知测量预告信息用于指示第二站点102进行感知测量,第二站点102接收感知测量预告信息并响应于感知测量预告信息与第一站点101进行感知测量。
由上可知,第一站点101向第二站点102发送感知测量预告信息,以指示第二站点102进行感知测量,这样,在第二站点102接收到感知测量预告信息后,可以提前做好准备,以更好地完成与第一站点101之间的感知测量。
第一站点101向第二站点102发送感知测量预告信息的时机例如可以为第一时刻,第一时刻为上述第一时间段中的一个时刻,即在第一时刻向第二站点102发送感知测量预告信息。需要说明的是,第一站点101向第二站点102发送感知测量预告信息的时机仅为示例性的,并不用于限定本申请,例如,在未执行协商流程的情况下,在第一站点101需要感知无源目标103的位置和瞬时速度时,向第二站点102发送感知测量预告信息。
可选的,感知测量预告信息102还可以携带感知测量的次数M和/或感知测量的终止信息。通过携带感知测量的次数M和/或感知测量的终止信息,使得第二站点102根据感知测量的次数M和/或感知测量的终止信息快速的确定停止感知测量的触发条件,进而在 感知测量的过程中,若第二站点102检测触发条件被触发(即感知测量的次数达到M次或者测量状态符合感知测量的终止信息)时,停止感知测量。
感知测量预告信息可以承载于媒体接入控制(media access control)帧中进行发送,下面,以MAC帧为空数据包预告帧(即NDPA帧)为例,对将感知测量预告信息承载在空数据包预告帧的方式进行说明。
首先,对802.11ax协议定义的空数据包预告帧的格式进行说明。如图3a所示,802.11ax协议定义的空数据包预告帧包括帧控制字段、时长字段、接收地址字段、发送地址字段、测量对话口令字段、n个站点信息字段,站点信息安全认证码字段、帧校验序列字段,其中:
帧控制字段,用于指示空数据包预告帧的类型。
时长字段,用于指示空数据包预告帧的持续时长。
接收地址字段,用于指示接收端的地址。
发送地址字段,用于指示发送端的地址。
测量对话口令字段,用于指示本次测量的编号,即用于指示本次测量为哪一次测量。如图3b所示,该测量对话口令字段包括测距子字段、HE/VHT子字段和测量对话口令子字段。其中,测距子字段用于指示本次发送的帧是用于测距的帧,HE/VHT子字段用于指示标准的版本,测量对话口令子字段,用于指示本次测量的编号,以指示本次测量是哪一次测量。
如图3c所示,每个站点信息字段均包括关联标识子字段、偏移量子字段、响应者到发起者空时流个数子字段、响应者到发起者重复次数子字段、发起者到响应者空时流个数子字段、第一预留子字段、去模糊子字段、发起者到响应者重复次数子字段、第二预留子字段,其中:
关联标识子字段用于指示响应方(即接收端)的编号。
偏移量子字段,用于指示标准LTF的标识。
响应者到发起者空时流个数子字段,用于指示响应者与发起者(发送端)之间独立信息的个数。
响应者到发起者重复次数子字段,用于指示响应者向发起者发送的帧中包括的LTF的数量和发送的重复次数。
发起者到响应者空时流个数子字段,用于指示发起者与响应者之间独立信息的个数。
去模糊子字段,设置为1。
发起者到响应者重复次数子字段,用于指示发起者向响应者发送的帧中包括的LTF的数量和发送的重复次数。
第一预留子字段和第二预留子字段为站点信息字段中预留出来的比特位。
站点信息安全认证码字段,用于指示接收方和发送方进行安全验证的信息。
帧校验序列字段,用于指示帧的校验序列,以验证帧是否被更改过。
需要说明的是,图3a每个字段下面的数字表示每个字段的字节数。图3b和图3c中的每个子字段下面的数字表示每个子字段的比特数。图3a、图3b和图3c中的字段或者子字段的中文下面均标识其英文。
为承载感知测量预告信息,本申请实施例对802.11ax已定义的空数据包预告帧的部分 字段的取值进行重定义或修改。比如,若感知测量预告信息携带感知测量的次数M、感知测量的终止信息中的任意一个,则空数据包预告帧承载感知测量预告信息的方式包括以下五种:
第一种,空数据包预告帧中的帧控制字段中的帧类型子字段的取值为第四数值,以指示第二站点进行感知测量,以在第二站点接收到空数据包预告帧后,开始进行感知测量。也就是说,在NDPA帧的Frame Control字段的frame subtype指示类型中新增一种感知测量NDPA帧,通过frame subtype中一个新的取值,指示该新增的感知测量NDPA帧,该新的取值可以是802.11ax中未被定义和使用的取值。
空数据包预告帧的站点信息字段中的任一个子字段的取值为感知测量的次数M或感知测量的终止信息,即对站点信息字段中的任一个子字段进行自定义,通过自定义的子字段指示感知测量的次数M或感知测量的终止信息。
需要说明的是,若将站点信息字段中的关联标识子字段的取值设置为感知测量的次数M或感知测量的终止信息,则需要使用另一个站点信息字段中的关联标识子字段指示第二站点的编号。
第二种,空数据包预告帧的测量对话口令(sounding dialog token)字段的预留比特的取值为第五数值,用于指示第二站点进行感知测量。也就是说,在NDPA帧的sounding dialog token字段的预留比特中新定义一种感知测量NDPA帧,通过sounding dialog token字段的预留比特的一个新的取值,指示该新定义的感知测量NDPA帧,该新的取值可以是802.11ax中未被定义和使用的取值。
空数据包预告帧的站点信息字段中的任一个子字段的取值为感知测量的次数M或感知测量的终止信息。即对站点信息字段中的任一个子字段进行自定义,通过自定义的子字段指示感知测量的次数M或感知测量的终止信息。
需要说明的是,若将站点信息字段中的关联标识子字段的取值设置为感知测量报告的次数M或感知测量报告的终止信息,则需要使用另一个站点信息字段中的关联标识子字段指示第二站点的编号。
第三种,空数据包预告帧的站点信息字段的预留比特的一部分比特的取值为第六数值,用于指示第二站点进行感知测量,预留比特的另一部分比特携带感知测量的终止信息。也就是说,在NDPA帧的STA Info字段的预留比特的一部分比特中新定义一种感知测量NDPA帧,通过NDPA帧的STA Info字段的预留比特的一部分比特的一个新的取值,指示该新定义的感知测量NDPA帧,该新的取值可以是802.11ax中未被定义和使用的取值。
第四种,空数据包预告帧的一个站点信息字段的预留比特的取值为第七数值,用于指示第二站点进行感知测量,空数据包预告帧的另一个站点信息字段的预留比特携带感知测量的次数M或感知测量的终止信息。也就是说,在NDPA帧的一个STA Info字段的预留比特中新定义一种感知测量NDPA帧,通过该STA Info字段的预留比特的一个新的取值,指示该新定义的感知测量NDPA帧。
第五种,空数据包预告帧中的站点信息字段中的关联标识子字段的取值为2008到2047之间的任一个整数,用于指示第二站点进行感知测量。也就是说,在NDPA帧的STA Info字段的AID11/RID11中新增一种感知测量NDPA帧,通过AID11/RID11中的一个新的取值,指示该新增的感知测量NDPA帧,该新的取值可以是802.11ax中未被定义和使 用的取值。
站点信息字段中其他字段携带感知测量的次数M或感知测量的终止信息。需要说明的是,由于通过空数据包预告帧中的站点信息字段中的关联标识子字段指示第二站点进行感知测量,因此,通过空数据包预告帧中的其他站点信息字段中的关联标识子字段来指示第二站点的编号。
需要说明的是,上述五种方式仅为示例性的,并不用于限定本申请。
针对感知测量子流程:第一站点101与第二站点102进行M次感知测量。
第一站点101与第二站点102进行M次感知测量的时机为:
若第一站点101向第二站点102发送了感知测量预告信息,则在第一站点101向第二站点102发送感知测量预告信息后,第一站点101与第二站点102进行M次感知测量。
若第一站点101未向第二站点102发送感知测量预告信息,且执行了协商流程,则第一站点101在第一时间段内与第二站点102进行M次感知测量。
若未执行协商流程且未发送感知测量预告信息,则第一站点101在需要感知无源目标103的位置和瞬时速度时,与第二站点102进行M次感知测量。
需要说明的是,上述第一站点101与第二站点102进行M次感知测量的时机仅为示例性的,并不用于限定本身申请。
第一站点101与第二站点102进行感知测量的次数M的确定方式例如可以为:第一站点101根据第一站点101与第二站点102能够进行的感知测量的最大次数确定第一站点101与第二站点102进行感知测量的次数M。需要说明的是,为了测量的准确性,M的取值可以在允许的范围内尽可能设置的大一些。第一站点101可以通过向第二站点102发送感知测量预告信息,并在感知测量预告信息中携带感知测量的次数M,来告知第二站点102感知测量的次数。
第一站点101与第二站点102之间的M次感知测量的过程如下:
针对第一站点101与第二站点102的单次感知测量,感知测量的过程包括:第一站点101向第二站点102发送第一测量帧,第二站点102接收第一测量帧以及向第一站点101发送第二测量帧,第一站点101接收第二测量帧。
第一测量帧用于第二站点测量第一站点与第二站点之间的信道,从而获取信道状态信息,第二测量帧用于第一站点测量第二站点与第一站点之间的信道,从而获取信道状态信息。第一测量帧和第二测量帧例如可以为空数据包(NDP,Null data packet)帧,也可以是其他包括前导序列的帧,当然还可以是数据帧,本申请实施例对此不作特殊限定。
重复上述单次感知测量过程,直至感知测量的次数达到M次,即可完成第一站点101和第二站点102之间的M次感知测量。
需要说明的是,第一站点101发送第一测量帧时,采用全向发射的方式,第二站点102发送第二测量帧时,同样也采用全向发射的方式。由于采用全向发射的方式发送测量帧,相比于定向发送测量帧的方式,无需向多个不同方向重复扫描才能完成无源目标的探测,且避免了由于探测信号的方向性差而导致的探测信号的发射角度的精度较差的问题,同时也解决了定向发送测量帧需要大口径的天线以及低频波束宽的问题。
第一测量帧可以通过第一站点101和第二站点102的直射路径104从第一站点101传输至第二站点102,第一测量帧还可以从第一站点101出发传输至无源目标103并被无源目标103反射后传输至第二站点102。第二测量帧可以通过第一站点101和第二站点102的直射路径104从第二站点102传输至第一站点101,第二测量帧还可以从第二站点102出发传输至无源目标103并被无源目标103反射后传输至第一站点101。
由于最小帧间间隔(SIFS、short interframe space)的存在,即相邻帧之间的最小时间间隔的存在,第二站点102在接收到第一测量帧后,要间隔一个预设时间间隔再向第一站点101发送第二测量帧,以及在第一站点101接收到第二测量帧后,间隔一个预设时间间隔再向第二站点102发送第一测量帧(即下一次感知测量中发送的第一测量帧),即相邻两次感知测量之间的时间间隔为预设时间间隔,该预设时间间隔等于或者大于最小帧间间隔。
基于此,如图4所示,以预设时间间隔等于最小帧间间隔为例,对第一站点101与第二站点102之间的M次感知测量的过程进行说明。
第一站点101向第二站点102发送第一测量帧,第二站点102接收第一测量帧,以及过SIFS时间后,第二站点102向第一站点101发送第二测量帧,第一站点101接收第二测量帧,以及过SIFS时间后,重复上述过程,直至完成M次感知测量。
需要说明的是,在上述过程中,还可以在每次感知测量中均发送感知测量预告信息,也可以在最后一次感知测量中发送感知测量预告信息,以告知第二站点感知测量流程结束。
在本申请的其他实施例中,第一站点101与第二站点102之间的M次感知测量的过程还可以如下:
第一站点101向第二站点102发送一个感知测量触发帧,第二站点102接收感知测量触发帧后过一预设时间间隔向第一站点101发送第二测量帧,第一站点101接收第二测量帧后过一个预设时间间隔后向第二站点102发送感知测量预告帧,以及再过一个预设时间间隔,第一站点101向第二站点102发送第一测量帧,第二站点102接收第一测量帧,此时完成了一次感知测量,重复上述过程直至完成M次感知测量。需要说明的是,两次相邻的感知测量之间的时间间隔为一个预设时间间隔。预设时间间隔大于或者等于最小帧间间隔。
在完成M次感知测量后,第一站点101接收到M个第二测量帧,第二站点102接收到M个第一测量帧,第一站点101根据M个第二测量帧获取信道状态信息(CSI),并根据获取的信道状态信息确定Z组第二测量结果,Z组第二测量结果与Z个第二传输路径一一对应,每组第二测量结果均包括对应的第二传输路径的到达角度、传输相对延时和多普勒频移。
同样,第二站点102根据M个第一测量帧获取信道状态信息(CSI),并根据获取的信道状态信息确定N组第一测量结果,N组第一测量结果与N个第一传输路径一一对应,每组第一测量结果均包括对应的第一传输路径的到达角度、传输相对延时和多普勒频移。
需要说明的是,传输路径的到达角度指传输路径上的测量帧进入站点的方向。
第一传输路径为第一测量帧在第一站点101和第二站点102之间传输的路径。以图1示出的几条路径为例,第一测量帧在第一站点101和第二站点102之间传输的路径可以包 括第一站点101和第二站点102之间的直射路径104、经过无源目标103的反射路径105。
第二传输路径为第二测量帧在第二站点102和第一站点101之间传输的路径。以图1示出的几条路径为例,第二测量帧在第二站点102和第一站点101之间传输的路径包括第二站点102和第一站点101之间的直射路径104、经过无源目标103的反射路径105。
需要说明的是,若第一站点向第二站点发送了感知测量预告信息,则由于最小帧间间隔的存在,在第一站点101向第二站点102发送感知测量预告信息后,过一预设时间间隔,开始与第二站点102进行M次感知测量,即发送第一测量帧。预设时间间隔等于或者大于最小帧间间隔。
下面,以第一测量帧和第二测量帧均为NDP帧,且第一测量帧和第二测量帧采用正交频分复用的传输方式为例,对第一站点101从每个第二测量帧中获取信道状态信息(CSI),并根据从M个第二测量帧中获取的信道状态信息确定Z组第二测量结果的原理进行说明。由于第一测量帧和第二测量帧均为NDP帧,因此,第一测量帧为第一NDP帧,第二测量帧为第二NDP帧。
如图5所示,设第一站点上相邻天线501的间距为a,第z个第二传输路径的到达角度为θ
z,则在第z个第二传输路径上的第二NDP帧在相邻天线间的信道状态信息(CSI)上引入的相位差为:
其中,Φ
z为在第z个第二传输路径上的第二NDP帧在相邻天线间的CSI上引入的相位差,λ为第z个第二传输路径上的第二NDP帧的载波波长,z用于指示第二传输路径的编号,1≤z≤Z,Z为第二传输路径的数量。需要说明的是,此处的Z为假设值,Z的实际取值是计算得到的。
设第二NDP帧的相邻子载波的频率间隔为Δf,则传输延时ToF为τ
z且在第z个第二传输路径上的第二NDP帧在相邻子载波之间引入的相位差为:
其中,Ω
z为传输延时ToF为τ
z且在第z个第二传输路径上的第二NDP帧在相邻子载波之间引入的相位差,τ
z为在第z个第二传输路径上的第二NDP帧的传输延时ToF,j为虚数单位。
第z个第二传输路径上的第二NDP帧被第z个第二传输路径上的无源目标反射后造成的多普勒频移为:
其中,v
z为第z个第二传输路径上的无源目标沿反射角的角平分线上的速度分量,反射角为第一站点与第z个第二传输路径上的无源目标组成的线段与第二站点与第z个第二传输路径上的无源目标组成的线段所构成的角。
多普勒频移导致第z个第二传输路径上的相邻两个第二NDP帧的CSI之间产生如下的相位差:
其中,D
z为多普勒频移导致第z个第二传输路径上的相邻两个第二NDP帧的CSI之 间产生的相位差,ΔT为第z个第二传输路径上相邻两个第二NDP帧的时间间隔。
第i次测量中的第b个天线对应的第k个子载波在Z个第二传输路径上的叠加CSI
i,b,k为:
其中,α
z为第z个第二传输路径上的第二NDP帧对应的幅度衰减。
将连续M次测量中K个相邻子载波和B个相邻天线上的CSI组合成为长度为M*K*B的向量:
[CSI(i)
T CSI(i+1)
T … CSI(i+M-1)
T] (6)
其中,
CSI(i)=[CSI
i,b,k CSI
i,b,k+1 … CSI
i,b,k+K-1 CSI
i,b+1,k CSI
i,b+1,k+1 … CSI
i,b+K-1,k+K-1]
T
遍历所有可能的组合,并把获取的向量并排一起得到MKB×P的矩阵,记为C,这里P为所有的可能组合,且P≥MKB,矩阵C可以分解为:
C=SX (7)
这里S是一个MKB×Z的矩阵,X为Z×P的矩阵,其中S矩阵的第z列可写为:
故对矩阵C做SVD分可得:
SVD(C)=UΣV
H (9)
挑选对应于上述矩阵U中对应于奇异值较小的特征向量构造矩阵E,则可以按照如下方式计算到达角度,传输相对延时和多普勒频移的谱值:
由于谱值P(θ,τ,f
D)中一个尖峰处就对应一个第二传输路径,且尖峰值处对应的θ,τ和f
D为对应的第二传输路径的到达角度、传输相对延时和多普勒频移。因此,求解谱值P(θ,τ,f
D),并将谱值P(θ,τ,f
D)中的尖峰处对应的θ,τ和f
D确定为该尖峰处对应的第二传输路径的到达角度、传输相对延时和多普勒频移。谱值P(θ,τ,f
D)中有几个尖峰就有几个第二传输路径。
需要说明的是,由于计算第一传输路径的到达角度、传输相对延时和多普勒频移的原理与计算第二传输路径的到达角度、传输相对延时和多普勒频移的原理相同,因此此处不再赘述。
由上可知,通过第一站点和第二站点之间的M次感知测量,即第一站点采用全向且多帧次向第二站点发送第一测量帧,使得第一测量能够尽可能多的覆盖第一站点到第二站点之间的传输路径,同样,第二站点采用全向且多次向第一站点发送第二测量帧,使得第二测量帧能够尽可能多的覆盖第二站点到第一站点之间的传输路径,这样,第一站点根据接收到的多个第二测量帧确定的Z组测量结果对应了尽可能多的第二站点到第一站点之间的传输路径,第二站点根据接收到的多个第一测量帧确定的N组测量结果对应了尽可能多的第一站点到第二站点之间的传输路径,即可以检测到位于传输路径上尽可能多的无源目标的路径信息,进而实现对多个无源目标的位置和瞬时速度的确定。
结果交互流程的具体流程如下:
在第二站点102计算出N组第一测量结果后,需要将N组第一测量结果发送至第一站点101,以使第一站点101根据N组第一测量结果和Z组二测量结果确定无源目标103的位置和瞬时速度。图6为本申请实施例提供的感知测量报告的交互方法的流程示意图,如图6所示,确定无源目标103的位置和瞬时速度的流程包括以下步骤:
S601,第二站点102根据N组第一测量结果生成感知测量报告信息,其中,N组第一测量结果与第一站点101和第二站点102之间的N个第一传输路径一一对应,一组第一测量结果包括对应的第一传输路径的到达角度、传输相对延时和多普勒频移。
需要说明的时,在其他实施例中,第二站点102还可以向第一站点101发送M次感知测量中的最后一次感知测量的往返时间。
在本申请实施例中,第一站点101和第二站点102之间的N个第一传输路径指第一测量帧在第一站点101和第二站点102之间的传输路径,第一测量帧在第一站点101和第二站点102之间的传输路径已经在上文中进行了说明,因此此处不再赘述。需要说明的是,N为大于0的整数。
感知测量报告信息还可以包括测量结果组数信息,该测量结果组数信息用于指示第一测量结果的组数N,以使第一站点在接收到感知测量报告信息后,根据其中携带的测量结果组数信息,快速确定其中携带的第一测量结果的组数。
感知测量报告信息还可以包括报告类型信息,该报告类型信息用于指示感知测量报告信息的类型,这样,在第一站点接收到感知测量报告信息后,可以根据其中携带的报告类型信息快速确定接收到的信息为感知测量报告信息。
感知测量报告信息还可以包括载波频偏参数信息,该载波频偏参数信息用于指示载波频率的偏移量。需要说明的是,该载波频率的偏移量为一个预先估计的误差值,通过该载波频率的偏移量可以对承载感知测量报告信息的载波的频率进行校正。
在此基础上,感知测量报告信息还可以包括公共响应信息、对话口令信息、离开时间、到达时间、离开时间误差、到达时间误差、安全LTF参数中的至少一个。其中,
对话口令信息,用于指示与第一站点的本次对话的编号,即向第一站点指示本次对话是哪一次对话。
离开时间,用于指示第二站点发送感知测量报告信息的时间。
到达时间,用于指示对方站点向第二站点发送的信息的到达时间。
离开时间误差,用于指示离开时间的精度,该离开时间误差为一个预先估计的误差值。
到达时间误差,用户指示到达时间的精度,该到达时间误差为一个预先估计的误差值。
感知测量报告信息被用于确定无源目标的位置和瞬时速度。
感知测量报告信息可以承载在一个媒体介质中进行发送。该媒体介质例如可以为位置测量报告帧、预定义的帧或者预定义的元素等,本申请对此不作特殊限定。下面,举例对在媒体介质中承载感知测量报告信息的方式进行说明。
例如,若位置测量报告帧(LMR帧)承载感知测量报告信息,则LMR帧承载感知测量报告信息的方式为:
在LMR帧中增加测量结果组数字段和测量结果字段,这样,LMR帧的结构如图7所示,包括类型字段、公共响应字段、对话口令字段、离开时间字段、到达时间字段、离开时间误差、到达时间误差字段、载波频偏参数字段、安全LTF参数字段、测量结果组数字段和测量结果字段,其中:
类型字段的取值为第一数值,通过该第一数值指示位置测量报告帧的类型为感知测量报告帧。测量结果字段的取值为感知测量报告信息中的N组第一测量结果,测量结果组数字段的取值为感知测量报告信息中的第一测量结果的组数N,载波频偏参数字段的取值为感知测量报告信息中的载波频率的偏移量。
LMR帧中的其他字段的取值为感知测量报告信息中对应的信息,此处不再详细说明。
需要说明的是,图7中的每个字段下面的数字表示对应字段的字节数,每个字节为8个比特。图7中每个字段的中文下面均显示了其英文。
再例如,若预定义帧承载感知测量报告信息,则预定义帧承载感知测量报告信息的方式为:
根据设计需求设置一个预定义帧,并通过该预定义帧承载感知测量报告信息。如图8所示,该预定义帧包括类型字段、测量结果字段、测量结果组数字段和载波频偏参数字段、公共响应字段、对话口令字段。其中:
类型字段的取值为第二取值,通过第二取值指示预定义帧的类型为感知测量报告帧。测量结果字段的取值为感知测量报告信息中的N组第一测量结果,测量结果组数字段的取值为感知测量报告信息中的第一测量结果的组数N,载波频偏参数字段的取值为感知测量报告信息中的载波频率的偏移量。
预定义帧中的其他字段的取值为感知测量报告信息中对应的信息,此处不再详细说明。
需要说明的是,图8中的每个字段下的数字表示对应字段的字节数,每个字节为8个比特。图8中每个字段的中文下面均显示了其英文。
再例如,若预定义元素承载感知测量报告信息,则预定义元素承载感知测量报告信息的方式为:
根据设计需求设置一个预定义元素,并通过该预定义元素承载感知测量报告信息。如图9所示,该预定义元素可以包括元素标识字段、测量结果字段、测量结果组数字段和载波频偏参数字段、元素长度字段、元素ID拓展字段、对话口令字段。其中:
元素标识字段的取值为第三数值,以指示预定义元素的类型为感知测量报告元素。测量结果字段的取值为感知测量报告信息中的N组第一测量结果,测量结果组数字段的取值为感知测量报告中的第一测量结果的组数N,载波频偏参数字段的取值为感知测量报告信息中的载波频率的偏移量。元素长度字段的取值为预定于元素的长度。元素ID拓展字段的取值为元素拓展的子类型。对话口令的取值为感知测量报告信息中的对话口令信息。
图9中的每个字段下的数字表示对应字段的字节数,每个字节为8个比特。图9中每个字段的中文下面均显示了其英文。
需要说明的是,上述第一数值、第二数值和第三数值可以根据通信规则等进行设置,本申请对此不作特殊限定。上述媒体介质承载感知测量报告信息的方式仅为示例性的,并不用于限定本申请。
S602,第二站点向第一站点发送感知测量报告信息。
在本申请实施例中,若感知测量报告信息承载于媒体介质中,则第二站点向第一站点发送承载有感知测量报告信息的媒体介质。
S603,第一站点接收感知测量报告信息。
在本申请实施例中,若感知测量报告信息承载于媒体介质中,则第一站点接收媒体介质,并从媒体介质中获取感知测量报告信息。
S604,第一站点根据感知测量报告信息获取N个第一传输路径的到达角度、传输相对延时和多普勒频移。
由上可知,由于感知测量报告信息包括N组第一测量结果,且一个测量结果中包括对应的第一传输路径的到达角度、传输相对延时和多普勒频移,使得第一站点可以基于N组第一次测量结果中的N个第一传输路径中的每个第一传输路径的到达角度、传输相对延时和多普勒频移确定N个第一传输路径对应的无源目标的位置和瞬时速度,实现了多个无源目标的位置和瞬时速度的测量。
图10为本申请实施例提供的第一站点确定无源目标的位置和瞬时速度的流程示意图。如图10所示,包括:
步骤1001、根据N个第一传输路径的到达角度(图1中的θ
1)、传输相对延时和多普勒频移与Z个第二传输路径的到达角度(图1中的θ
2)、传输相对延时和多普勒频移确定同一个无源目标的第一传输路径和第二传输路径,以得到每个无源目标的第一传输路径和第二传输路径。
在本申请实施例中,由于第一传输路径为第一测量帧在第一站点与第二站站点之间传输时所经过的路径,第二传输路径为第二测量帧在第二站点与第一站点之间传输时所经过的路径,因此,第一传输路径和第二传输路径存在重合的路径。这样,就可以通过确定重合的第一传输路径和第二传输路径来确定重合路径上的无源目标的第一传输路径和第二传输路径。
基于此,根据N个第一传输路径的到达角度、传输相对延时和多普勒频移与Z个第二传输路径的到达角度、传输相对延时和多普勒频移匹配出路径重合的第一传输路径和第二传输路径,即确定同一无源目标的第一传输路径和第二传输路径。
具体的,由于针对重合的第一传输路径和第二传输路径,第一传输路径进入第二站点的方向和第二传输路径进入第一站点的方向相反,第一传输路径的传输相对延时和多普勒频移与第二传输路径的传输相对延时和多普勒频移相同,因此,确定重合的第一传输路径和第二传输路径的原理为:若一个第一传输路径的传输相对延时和多普勒频域均与一个第二传输路径的传输相对延时和多普勒频移相同,则认定该第一传输路径和第二传输路径重合。这样,就可以通过匹配第一传输路径和第二传输路径的传输相对延时和多普勒频移得 到同一无源目标的第一传输路径和第二传输路径。
需要说明的是,若两个无源目标基于第一站点101和第二站点102连接的直线对称,则虽然两个无源目标的位置不同,但是由于经过两个无源目标的传输路径的距离相同,因此经过该两个无源目标的四个传输路径的相对传输延时和多普勒频移相同。这样,在匹配重合的第一传输路径和第二传输路径时,存在一个第一传输路径与多个第二传输路径匹配,一个第二传输路径与多个第一传输路径匹配的情况。针对一个第一传输路径与多个第二传输路径匹配的情况,可以根据沿着第一传输路径的到达角度相反的方向画一个第一射线,以及沿着每条第二传输路径的到达角度相反的方向分别画一条第二射线,若一个第一射线与一个第二射线存在焦点,则确定存在焦点的第一射线对应的第一传输路径和第二射线对应的第二传输路径重合。针对一个第二传输路径与多个第一传输路径匹配的情况,确定重合的第一传输路径和第二传输路径的原理同上,因此此处不在赘述。
步骤1002、根据每个无源目标的第一传输路径的到达角度和传输相对延时和第二传输路径的到达角度和传输相对延时、第一站点和/或第二站点的位置,分别确定每个无源目标的位置。
在本申请实施例中,由于一个无源目标的第一传输路径的到达角度为无源目标与第二站点连接的直线与水平线的夹角,一个无源目标的第二传输路径的到达角度为无源目标与第一站点的直线与水平线的夹角。
因此,若已知第一站点和第二站点的位置,则以第一站点为原点出发,沿着第二传输路径的到达角度的反方向画一条射线,然后,以第二站点为原点出发,沿着第一传输路径的到达角度的反方向画一个射线,两条射线的交点即为无源目标的位置。
若已知第一站点的位置,则根据第一站点的位置、传输相对延时、第一传输路径的到达角度和第二传输路径的到达角度、第一站点和第二站点之间的直射径并结合几何原理,计算第二站点的位置,然后,根据第二站点的位置和第一站点的位置,并结合第一传输路径的到达角度和第二传输路径的到达角度,确定无源目标的位置。
需要说明的是,已知第二站点的位置确定无源目标的原理与已知第一站点的位置确定无源目标的原理相同,因此此处不再赘述。
显然,在已知第一站点和第二站点的位置的情况下,可以在第一站点和第二站点不存在直射径的情况下确定无源目标的位置。在已知第一站点和第二站点中的任一个站点的位置的前提下,需要在第一站点和第二站点存在直射径的情况下确定无源目标的位置。
需要说明的是,由于确定每个无源目标的位置的原理相同,因此此处不再赘述。
步骤1003、根据每个无源目标的第一传输路径的多普勒频移或第二传输路径的多普勒频移、测量帧的载波波长确定每个无源目标的瞬时速度。
在本申请实施例中,由于针对一个无源目标,该无源目标的第一传输路径的多普勒频移和第二传输路径的多普勒频移相同,因此,根据该无源目标的第一传输路径的多普勒频移或第二传输路径的多普勒频移计算该无源目标的瞬时速度。
具体的,根据下述公式:
v=λ*f
D
其中,v为无源目标的瞬时速度,λ为载波波长,f
D为无源目标的第一传输路径的多普 勒频移或第二传输路径的多普勒频移。
综上所述,通过匹配第一传输路径和第二传输路径的传输相对延时和多普勒频移,可快速的确定路径重合的第一传输路径和第二传输路径,即确定同一无源目标的第一传输路径和第二传输路径,以及根据重合的第一传输路径和第二传输路径的到达角度和传输相对延时,确定同一无源目标的位置,位置确定步骤简单,易于执行。另外,通过无源目标的第一传输路径或者第二传输路径的多普勒频移即可计算无源目标的瞬时速度,步骤简单,易于执行。此外,由于第一传输路径和第二传输路径均为多个,因此,多个第一传输路径和多个第二传输路径中重合的传输路径也为多个,且又由于无源目标在传输路径上,因此,通过多个第一传输路径和多个第二传输路径可以确定多个无源目标的位置和瞬时速度。另外,相比于现有技术中根据传输时间确定目标的位置的方式中,由于本申请根据第一传输路径和第二传输路径的传输相对延时和到达角度确定无源目标的位置,提高了无源目标的位置测量结果的准确度和系统的鲁棒性。
下面,以感知测量请求为感知测量请求帧,基于感知测量请求的响应信息为感知测量响应帧,感知测量预告帧为空数据包预告帧(NDPA帧),第一测量帧为第一NDP帧(第一空数据包帧),第二测量帧为第二NDP帧(第二空数据包帧),第一站点与第二站之间存在两个无源目标,第一站点为第一WiFi设备和第二站点为第二WiFi设备为例,对确定图11中的无源目标的位置和瞬时速度的过程进行说明。在图11中,第一WiFi设备1101和第二WiFi设备1102之间包括两个无源目标,分别为无源目标1103和无源目标1104。
第一WiFi设备1101向第二WiFi设备1102发送感知测量请求帧,其中,感知测量请求帧携带第一WiFi设备1101能够进行感知测量的时间段、信道信息、第一WiFi设备1101和第二WiFi设备1102之间能够进行的感知测量的最大次数等信息。第二wifi设备1102接收感知测量请求帧,过SIFS时间后向第一WiFi设备1101发送ACK帧,以及根据感知测量请求帧中携带的信息,确定是否支持第一WiFi设备1101的请求,若是,则基于感知测量请求帧中携带的信息向第一WiFi设备1101发送感知测量响应帧,该感知测量响应帧携带第一时间段,即第一WiFi设备1101能够进行感知测量的时间段和第二WiFi设备1102能够进行感知测量的时间段的交集。第一WiFi设备1101接收感知测量响应帧,以及过SIFS时间后向第二WiFi设备发送ACK帧,至此协商流程完成。
在可用时间到来时,即在第一时间段中的一个时刻到来时,第一WiFi设备1101向第二WiFi设备1102发送NDPA帧,以告知第二WiFi设备1102接下来要进行感知测量。可选的,在NDPA帧中携带感知测量的次数或测量终止信息,以告知第二WiFi设备1102感知测量重复交互次数或测量终止信息。
第二WiFi设备1102接收NDPA帧。第一WiFi设备1101发送NDPA帧之后过SIFS时间后,向第二WiFi设备1102发送第一NDP帧,第二WiFi设备1102接收第一NDP帧以及过SIFS时间后向第一WiFi设备1101发送第二NDP帧,第一WiFi设备1101接收第二NDP帧,接下来重复多次上述测量流程,且在后续测量流程中第一WiFi设备1101不再向第二WiFi设备1102发送NDPA帧,而是直接发送NDP帧,直至第一WiFi设备1101与第二WiFi设备1102之间的测量次数达到指定的测量次数或者协商的测量次数。
需要说明的是,第一NDP帧可以通过第一WiFi设备1101与第二WiFi设备1102之 间的直射路径1105、第一WiFi设备1101与第二WiFi设备1102之间的反射路径(即经过无源目标1103的反射路径1107和经过无源目标1104的反射路径1106)从第一WiFi设备1101传输至第二WiFi设备1102,第二NDP帧可以通过第一WiFi设备1101与第二WiFi设备1102之间的直射路径1105、第一WiFi设备1101与第二WiFi设备1102之间的反射路径(即经过无源目标1103的反射路径1107和经过无源目标1104的反射路径1106)从第二WiFi设备1102传输至第一WiFi设备1101。
在完成第一WiFi设备1101和第二WiFi设备1102的多次感知测量之后,第一WiFi设备1101根据接收到的第二NDP帧确定了两组第二测量结果,第二WiFi设备1102根据接收到的第一NDP帧确定了两组第一测量结果。
两组第二测量结果与第二NDP帧从第二WiFi设备1102传输至第一WiFi设备1101的两个反射路径1106、1107一一对应,与反射路径1106对应的第二测量结果中包括了反射路径1106的到达角度θ
2
2、传输相对延时和多普勒频移。与反射路径1107对应的第二测量结果中包括了反射路径1107的到达角度θ
1
2、传输相对延时和多普勒频移。
两组第一测量结果与第一NDP帧从第一WiFi设备1101传输至第二WiFi设备1102的两个反射路径1106、1107一一对应,与反射路径1106对应的第一测量结果中包括了反射路径1106的到达角度θ
2
1、传输相对延时和多普勒频移。与反射路径1107对应的第一测量结果中包括了反射路径1107的到达角度θ
1
1、传输相对延时和多普勒频移。
需要说明的是,确定测量结果的原理已经在上文中进行了说明,因此此处不再赘述。
第二wifi设备1102根据两组第一测量结果生成感知测量报告信息,以及将感知测量报告信息发送至第一WiFi设备1101。
第一WiFi设备1101从感知测量报告信息中获取两组第一测量结果,以及将每组第一测量结果中的传播相对延时和多普勒频移与每组第二测量结果中的传播相对延时和多普勒频移进行匹配,以确定了同一无源目标的第一传输路径和第二传输路径,根据同一无源目标的第一传输路径和第二传输路径中的到达角度、传输相对延时和多普勒频移并结合上述方式确定两个无源目标1103、1104的位置和瞬时速度。
下面详细介绍本申请实施例提供的装置。
图12示出了本申请实施例提供的一种感知测量信息交互装置1200,该装置可以是上述实施例中的第一站点、第二站点或者站点中的芯片或处理系统,可以实现本申请任一实施例的方法和功能。由于集成度的差异,该感知测量信息交互装置可以包括如图12所示的部件中的一个或多个。图12所示出的部件可以包括至少一个处理器1201,存储器1202、收发器1203以及通信总线1204。
下面结合图12对该感知测量信息交互装置1200的各个构成部件进行具体的介绍:
处理器1201是测量信息交互装置1200的控制中心,可以是一个处理器,也可以是多个处理元件的统称。例如,处理器1201是一个中央处理器(central processing unit,CPU),也可以是特定集成电路(Application Specific Integrated Circuit,ASIC),或者是被配置成实施本申请实施例的一个或多个集成电路,例如:一个或多个微处理器(digital signal processor,DSP),或,一个或者多个现场可编程门阵列(Field Programmable Gate Array,FPGA)。其中,处理器1201可以通过运行或执行存储在存储器1202内的软件程序,以 及调用存储在存储器1202内的数据,执行测量信息交互装置的各种功能。在具体的实现中,作为一种实施例,处理器1201可以包括一个或多个CPU,例如图12中所示的CPU0和CPU1。
在具体实现中,作为一种实施例,测量信息交互装置1200可以包括多个处理器,例如图12中所示的处理器1201和处理器1205。这些处理器中的每一个可以是一个单核处理器(single-CPU),也可以是一个多核处理器(multi-CPU)。这里的处理器可以指一个或多个通信设备、电路、和/或用于处理数据(例如计算机程序指令)的处理核。
存储器1202可以是只读存储器(read-only memory,ROM)或可存储静态信息和指令的其他类型的静态存储通信设备,随机存取存储器(random access memory,RAM)或者可存储信息和指令的其他类型的动态存储通信设备,或者是非易失性可读存储介质,也可以是电可擦可编程只读存储器(Electrically Erasable Programmable Read-Only Memory,
EEPROM)、只读光盘(Compact Disc Read-Only Memory,CD-ROM)或其他光盘存储、光碟存储(包括压缩光碟、激光碟、光碟、数字通用光碟、蓝光光碟等)、磁盘存储介质或者其他磁存储通信设备、或者能够用于携带或存储具有指令或数据结构形式的期望的程序代码并能够由计算机存取的任何其他介质,但不限于此。存储器1202可以是独立存在,通过通信总线1204与处理器1201相连接。存储器1202也可以和处理器1201集成在一起。其中,所述存储器1202用于存储执行本申请方案的软件程序,并由处理器1201来控制执行。
收发器1203,用于与其他设备(例如图1所示实施例中的站点)之间的通信。当然,收发器1203还可以用于与通信网络通信,通信网络例如为以太网,无线接入网(radio access network,RAN),无线局域网(Wireless Local Area Networks,WLAN)等。收发器1203可以包括接收单元实现接收功能,以及发送单元实现发送功能。
通信总线1204,可以是工业标准体系结构(Industry Standard Architecture,ISA)总线、外部通信设备互连(Peripheral Component,PCI)总线或扩展工业标准体系结构(Extended Industry Standard Architecture,EISA)总线等。该总线可以分为地址总线、数据总线、控制总线等。为便于表示,图12中仅用一条粗线表示,但并不表示仅有一根总线或一种类型的总线。
一个示例中,该测量信息交互装置1200为一个整机的设备,该测量信息交互装置可包括:处理器1201,存储器1202以及收发器1203以及通信总线1204,可选的,还可以包括其他部件,比如显示器等。
可选的,该测量信息交互装置1200为第一站点,可以用于实现前述实施例中涉及第一站点的方法和功能。例如,存储器中存储计算机程序(指令),当处理器调用该计算机程序时,实现上述方法和功能,比如,处理器用于根据感知测量报告信息获取N个第一传输路径的到达角度、传输相对延时和多普勒频移,收发器用于接收第二站点发送的感知测量报告信息。一个示例中,例如处理器用于控制收发器执行步骤S603。
可选的,该测量信息交互装置1200为第二站点,可以用于实现前述实施例涉及第二站点的方法和功能。例如,存储器中存储计算机程序,当处理器调用该计算机程序时,实现上述方法和功能,比如,处理器用于根据N组第一测量结果生成感知测量报告信息,收发器用于向第一站点发送感知测量报告信息。一个示例中,例如,处理器用于控制收发器 执行步骤S602。
在另一个示例中,该测量信息交互装置1200为芯片或处理系统,安装于站点中,该芯片或处理系统包括:处理器1201,该处理器1201用于执行存储器中存储的指令,以使得安装该芯片或处理系统的站点执行上述任一方面的方法。可选的,存储器可以集成于该芯片或处理系统中,为片内存储单元;可选的,存储器可以位于芯片或处理系统外,与芯片或处理系统耦合连接,为片外存储单元。
可选的,该测量信息交互装置1200为安装在第一站点内的芯片或处理系统,使得第一站点执行上述任一实施例中涉及第一站点的方法。比如,存储器中存储计算机程序(指令),当处理系统调用该计算机程序时,使得第一站点执行:接收第二站点发送的感知测量报告信息,并根据所述感知测量报告信息获取N个第一传输路径的到达角度、传输相对延时和多普勒频移。
可选的,该测量信息交互装置1200为安装在第二站点内的芯片或处理系统,使得第二站点执行上述任一实施例中涉及第二站点的方法。比如,存储器中存储计算机程序(指令),当处理系统调用该计算机程序时,使得第二站点执行:根据N组第一测量结果生成感知测量报告信息,其中,所述N组第一测量结果与第一站点与所述第二站点之间的N个第一传输路径一一对应,每组所述第一测量结果均包括所对应的第一传输路径的到达角度、传输相对延时和多普勒频移;向所述第一站点发送所述感知测量报告信息。
本申请实施例可以根据上述方法示例对该第一站点和第二站点进行功能模块的划分,例如,可以对应各个功能划分各个功能模块,也可以将两个或两个以上的功能集成在一个处理模块中。上述集成的模块既可以采用硬件的形式实现,也可以采用软件功能模块的形式实现。需要说明的是,本申请实施例中对模块的划分是示意性的,仅仅为一种逻辑功能划分,实际实现时可以有另外的划分方式。
在采用集成的单元的情况下,图13示出了一种测量信息交互装置1300的可能的结构示意图,该测量信息交互装置1300可以为第一站点或者第二站点,所述测量信息交互装置1300可以执行上述方法实施例中第一站点的操作或第二站点的操作。该通信装置1300包括:处理单元1301和收发单元1302。
处理单元1301可以用于对测量信息交互装置1300的动作进行控制管理。例如,根据所述感知测量报告信息获取N个第一传输路径的到达角度、传输相对延时和多普勒频移。再例如,根据N组第一测量结果生成感知测量报告信息。再例如,控制收发单元1302的操作。可选的,若测量信息交互装置1300包括存储单元,则处理单元1301还可以执行存储在存储单元中的程序或指令,以使得测量信息交互装置1300实现上述任一实施例所涉及的方法和功能。
示例性的,上述处理单元1301可以控制收发单元1302执行例如图6中的步骤S603或者步骤602和/或用于本文所描述的技术的其它过程。其中,上述方法实施例涉及的各步骤的所有相关内容均可以援引到对应功能模块的功能描述,在此不再赘述。
示例性的,上述收发单元1302既可以接收第二站点发送的感知测量报告信息,也可以发送感知测量报告信息。可选的,该收发单元1302可以为一个收发模块,也可以包括多个收发模块。当收发单元1302为一个收发模块时,该收发模块既可以发送感知测量报告信息,也可以接收感知测量报告信息。示例性的,上述收发单元1302可以用于执行例 如图6中的步骤603或步骤602和/或用于本文所描述的技术的其它过程。其中,上述方法实施例涉及的各步骤的所有相关内容均可以援引到对应功能模块的功能描述,在此不再赘述。
示例性的,该测量信息交互装置1300可以为图12所示的测量信息交互装置,处理单元1301可以为图12中的处理器1201、收发单元1302可以为图12中的收发器1203。可选的,该通信装置1300还可以包括存储器,该存储器用于存储测量信息交互装置1200执行上文所提供的第一站点所执行的步骤或者第二站点所执行的步骤所对应的程序代码和数据。上述图12涉及的各部件的所有相关内容的描述均可以援引到该通信装置1300对应部件的功能描述,在此不再赘述。
示例性的,该测量信息交互装置1300还可以为芯片或处理器,其中的处理单元1302为芯片或处理器中的处理电路,收发单元1302可以为芯片或处理器中的输入/输出电路,输入/输出电路为芯片或处理器与其他耦合部件相互通信或交互数据的接口,可确保信令或数据信息或程序指令被输入到芯片或处理器中进行处理,且将处理后的数据或信令输出给其他耦合的部件,并控制安装该芯片或处理器的第一多链路设备实现功能。
本申请实施例还提供一种计算机可读存储介质,该计算机可读存储介质中存储有计算机程序代码,当上述处理器执行该计算机程序代码时,使得该处理器所在的电子设备(如第一站点和第二站点)执行任一实施例的方法。
本申请实施例还提供了一种计算机程序产品,当该计算机程序产品在计算机上运行时,使得计算机(如第一站点或第二站点)执行任一实施例的方法。
本申请实施例还提供了一种测量信息交互装置,该装置可以以芯片的产品形态存在,该装置的结构中包括处理器和接口电路,该处理器用于通过接收电路与其它装置通信,使得该装置执行上述执行任一实施例的方法。
本申请实施例还提供了一种通信系统,该通信系统包括上述第一站点和第二站点,该第一站点和第二站点可以执行上述任一实施例中的方法。结合本申请公开内容所描述的方法或者算法的步骤可以硬件的方式来实现,也可以是由处理器执行软件指令的方式来实现。软件指令可以由相应的软件模块组成,软件模块可以被存放于随机存取存储器(Random Access Memory,RAM)、闪存、可擦除可编程只读存储器(Erasable Programmable ROM,EPROM)、电可擦可编程只读存储器(Electrically EPROM,EEPROM)、寄存器、硬盘、移动硬盘、只读光盘(CD-ROM)或者本领域熟知的任何其它形式的存储介质中。一种示例性的存储介质耦合至处理器,从而使处理器能够从该存储介质读取信息,且可向该存储介质写入信息。当然,存储介质也可以是处理器的组成部分。处理器和存储介质可以位于ASIC中。另外,该ASIC可以位于核心网接口设备中。当然,处理器和存储介质也可以作为分立组件存在于核心网接口设备中。
本领域技术人员应该可以意识到,在上述一个或多个示例中,本申请所描述的功能可以用硬件、软件、固件或它们的任意组合来实现。当使用软件实现时,可以将这些功能存储在计算机可读介质中或者作为计算机可读介质上的一个或多个指令或代码进行传输。计算机可读介质包括计算机可读存储介质和通信介质,其中通信介质包括便于从一个地方向另一个地方传送计算机程序的任何介质。存储介质可以是通用或专用计算机能够存取的任何可用介质。
以上所述的具体实施方式,对本申请的目的、技术方案和有益效果进行了进一步详细说明,所应理解的是,以上所述仅为本申请的具体实施方式而已,并不用于限定本申请的保护范围,凡在本申请的技术方案的基础之上,所做的任何修改、等同替换、改进等,均应包括在本申请的保护范围之内。
本领域普通技术人员可以意识到,结合本文中所公开的实施例描述的各示例的单元及算法步骤,能够以电子硬件、或者计算机软件和电子硬件的结合来实现。这些功能究竟以硬件还是软件方式来执行,取决于技术方案的特定应用和设计约束条件。专业技术人员可以对每个特定的应用来使用不同方法来实现所描述的功能,但是这种实现不应认为超出本申请的范围。
所属领域的技术人员可以清楚地了解到,为描述的方便和简洁,上述描述的系统、装置和单元的具体工作过程,可以参考前述方法实施例中的对应过程,在此不再赘述。
在本申请所提供的几个实施例中,应该理解到,所揭露的系统、装置和方法,可以通过其它的方式实现。例如,以上所描述的装置实施例仅仅是示意性的,例如,所述单元的划分,仅仅为一种逻辑功能划分,实际实现时可以有另外的划分方式,例如多个单元或组件可以结合或者可以集成到另一个系统,或一些特征可以忽略,或不执行。另一点,所显示或讨论的相互之间的耦合或直接耦合或通信连接可以是通过一些接口,装置或单元的间接耦合或通信连接,可以是电性,机械或其它的形式。
所述作为分离部件说明的单元可以是或者也可以不是物理上分开的,作为单元显示的部件可以是或者也可以不是物理单元,即可以位于一个地方,或者也可以分布到多个网络单元上。可以根据实际的需要选择其中的部分或者全部单元来实现本实施例方案的目的。
另外,在本申请各个实施例中的各功能单元可以集成在一个处理单元中,也可以是各个单元单独物理存在,也可以两个或两个以上单元集成在一个单元中。
所述功能如果以软件功能单元的形式实现并作为独立的产品销售或使用时,可以存储在一个计算机可读取存储介质中。基于这样的理解,本申请的技术方案本质上或者说对现有技术做出贡献的部分或者该技术方案的部分可以以软件产品的形式体现出来,该计算机软件产品存储在一个存储介质中,包括若干指令用以使得一台计算机设备(可以是个人计算机,服务器,或者网络设备等)执行本申请各个实施例所述方法的全部或部分步骤。而前述的存储介质包括:U盘、移动硬盘、只读存储器(Read-Only Memory,ROM)、随机存取存储器(Random Access Memory,RAM)、磁碟或者光盘等各种可以存储程序代码的介质。
以上所述,仅为本申请的具体实施方式,但本申请的保护范围并不局限于此,任何熟悉本技术领域的技术人员在本申请揭露的技术范围内,可轻易想到变化或替换,都应涵盖在本申请的保护范围之内。因此,本申请的保护范围应以所述权利要求的保护范围为准。
Claims (55)
- 一种感知测量信息交互装置,应用于第一站点,其特征在于,包括:收发单元,用于接收第二站点发送的感知测量报告信息;所述感知测量报告信息包括N组第一测量结果,其中,所述N组第一测量结果与所述第一站点和所述第二站点之间的N个第一传输路径一一对应,每组所述第一测量结果均包括所对应的第一传输路径的到达角度、传输相对延时和多普勒频移;处理单元,用于根据所述感知测量报告信息获取N个第一传输路径的到达角度、传输相对延时和多普勒频移。
- 根据权利要求1所述的装置,其特征在于,所述感知测量报告信息还包括:测量结果组数信息,所述测量结果组数信息用于指示所述第一测量结果的组数N。
- 根据权利要求2所述的装置,其特征在于,所述感知测量报告信息还包括:报告类型信息,所述报告类型信息用于指示所述感知测量报告信息的类型。
- 根据权利要求3所述的装置,其特征在于,所述感知测量报告信息还包括:载波频偏参数信息,所述载波频偏参数信息用于指示载波频率的偏移量。
- 根据权利要求4所述的装置,其特征在于,所述感知测量报告信息承载于位置测量报告帧中,其中,所述位置测量报告帧新增了测量结果字段和测量结果组数字段,所述测量结果字段的取值为所述N组第一测量结果,所述测量结果组数字段的取值为所述第一测量结果的组数N,所述位置测量报告帧中的类型字段的取值为第一数值,以指示所述位置测量报告帧的类型为感知测量报告帧,所述位置测量报告帧中的载波频偏参数字段的取值为所述载波频率的偏移量;或者所述感知测量报告信息承载于一预定义帧中,其中,所述预定义帧包括类型字段、测量结果字段、测量结果组数字段和载波频偏参数字段,所述类型字段的取值为第二数值,以指示所述预定义帧的类型为感知测量报告帧,所述测量结果字段的取值为所述N组第一测量结果,所述测量结果组数字段的取值为所述第一测量结果的组数N,所述载波频偏参数字段的取值为所述载波频率的偏移量;或者所述感知测量报告信息承载于一预定义元素中,其中,所述预定义元素包括元素标识字段、测量结果字段、测量结果组数字段和载波频偏参数字段,所述元素标识字段的取值为第三数值,以指示所述预定义元素的类型为感知测量报告元素,所述测量结果字段的取值为所述N组第一测量结果,所述测量结果组数字段的取值为所述第一测量结果的组数N,所述载波频偏参数字段的取值为所述载波频率的偏移量。
- 根据权利要求1~5中任一项所述的装置,其特征在于,所述处理单元,还用于在接收第二站点发送的感知测量报告信息之前,与所述第二站点进行M次感知测量,其中, 每次所述感知测量均包括:向所述第二站点发送第一测量帧;接收所述第二站点发送的第二测量帧。
- 根据权利要求6所述的装置,其特征在于,所述收发单元,还用于在与所述第二站点进行M次感知测量之前,向所述第二站点发送感知测量预告信息,其中,所述感知测量预告信息用于指示所述第二站点进行感知测量。
- 根据权利要求7所述的装置,其特征在于,所述感知测量预告信息还携带所述感知测量的次数M和/或感知测量的终止信息。
- 根据权利要求7或8所述的装置,其特征在于,所述收发单元用于通过下述方式向所述第二站点发送感知测量预告信息,其中:在第一时刻向所述第二站点发送感知测量预告信息,所述第一时刻为第一时间段中的一个时刻,所述第一时间段为所述第一站点能够进行感知测量的时间段与所述第二站点能够进行感知测量的时间段的交集。
- 根据权利要求8所述的装置,其特征在于,所述感知测量预告信息承载于空数据包预告帧中,其中:所述空数据包预告帧中的帧控制字段中的帧类型子字段的取值为第四数值,用于指示所述第二站点进行感知测量,所述空数据包预告帧的站点信息字段中的任一个子字段的取值为所述感知测量的次数M或所述感知测量的终止信息;或者所述空数据包预告帧的测量对话口令字段的预留比特的取值为第五数值,用于指示所述第二站点进行感知测量,所述空数据包预告帧的站点信息字段中的任一个子字段的取值为所述感知测量的次数M或所述感知测量的终止信息;或者所述空数据包预告帧的站点信息字段的预留比特的一部分比特的取值为第六数值,用于指示所述第二站点进行感知测量,所述预留比特的另一部分比特的取值为所述感知测量的终止信息;或者所述空数据包预告帧的一个站点信息字段的预留比特的取值为第七数值,用于指示所述第二站点进行感知测量,所述空数据包预告帧的另一个站点信息字段的预留比特的取值为所述感知测量的次数M或所述感知测量的终止信息;或者所述空数据包预告帧中的站点信息字段中的关联标识子字段的取值为2008到2047之间的任一个整数,用于指示所述第二站点进行感知测量,所述站点信息字段中剩余字段的取值为所述感知测量的次数M或所述感知测量的终止信息。
- 根据权利要求7~10中任一项所述的装置,其特征在于,所述收发单元,还用于在向所述第二站点发送感知测量预告信息之前,向所述第二站点发送感知测量请求,所述感知测量请求携带所述第一站点能够进行感知测量的时间段、信道信息、所述第一站点和所述第二站点之间能够进行的感知测量的最大次数;其中,所述感知测量的最大次数大于或等于所述M;接收所述第二站点基于所述感知测量请求发送的响应信息,所述响应信息 携带所述第一时间段,其中,所述第一时间段为所述第一站点能够进行感知测量的时间段与所述第二站点能够进行感知测量的时间段的交集。
- 根据权利要求6~11中任一项所述的装置,其特征在于,所述处理单元,还用于根据在所述M次感知测量中接收到的M个第二测量帧确定Z组第二测量结果,所述Z组第二测量结果与所述第一站点和所述第二站点之间的Z个第二传输路径一一对应,每组所述第二测量结果均包括所对应的第二传输路径的到达角度、传输相对延时和多普勒频移;根据所述N个第一传输路径的到达角度、传输相对延时和多普勒频移和所述Z个第二传输路径的到达角度、传输相对延时和多普勒频移,确定每个无源目标的位置和瞬时速度,其中,所述无源目标位于所述传输路径上。
- 根据权利要求12所述的装置,其特征在于,所述处理单元通过下述方式确定无源目标的位置和瞬时速度,其中:根据所述N个第一传输路径的到达角度、传输相对延时和多普勒频移和所述Z个第二传输路径的到达角度、传输相对延时和多普勒频移确定同一无源目标的所述第一传输路径和所述第二传输路径,以得到每个所述无源目标的第一传输路径和第二传输路径;根据每个所述无源目标的第一传输路径的到达角度和传输相对延时和第二传输路径的到达角度和传输相对延时、所述第一站点和/或所述第二站点的位置,分别确定每个所述无源目标的位置;根据每个所述无源目标的第一传输路径的多普勒频移或第二传输路径的多普勒频移、所述测量帧的载波波长确定每个所述无源目标的瞬时速度。
- 一种感知测量信息交互装置,应用于第二站点,其特征在于,包括:处理单元,用于根据N组第一测量结果生成感知测量报告信息,其中,所述N组第一测量结果与第一站点和所述第二站点之间的N个第一传输路径一一对应,每组所述第一测量结果均包括所对应的第一传输路径的到达角度、传输相对延时和多普勒频移;收发单元,用于向所述第一站点发送所述感知测量报告信息。
- 根据权利要求14所述的装置,其特征在于,所述感知测量报告信息还包括:测量结果组数信息,所述测量结果组数信息用于指示所述第一测量结果的组数N。
- 根据权利要求15所述的装置,其特征在于,所述感知测量报告信息还包括:报告类型信息,所述报告类型信息用于指示所述感知测量报告信息的类型。
- 根据权利要求16所述的装置,其特征在于,所述感知测量报告信息还包括:载波频偏参数信息,所述载波频偏参数信息用于指示载波频率的偏移量。
- 根据权利要求17所述的装置,其特征在于,所述感知测量报告信息承载于位置测量报告帧中,其中,所述位置测量报告帧新增了测量结果字段和测量结果组数字段,所 述测量结果字段的取值为所述N组第一测量结果,所述测量结果组数字段的取值为所述第一测量结果的组数N,所述位置测量报告帧的类型字段的取值为第一数值,以指示所述位置测量报告帧的类型为感知测量报告帧,所述位置测量报告帧中的载波频偏参数字段的取值为所述载波频率的偏移量;或者所述感知测量报告信息承载于一预定义帧中,其中,所述预定义帧中包括类型字段、测量结果字段、测量结果组数字段和载波频偏参数字段,所述类型字段的取值为第二数值,以指示所述预定义帧的类型为感知测量报告帧,所述测量结果字段的取值为所述N组第一测量结果,所述测量结果组数字段的取值为所述第一测量结果的组数N,所述载波频偏参数字段的取值为所述载波频率的偏移量;或者所述感知测量报告信息承载于一预定义元素中,其中,所述预定义元素包括元素标识字段、测量结果字段、测量结果组数字段和载波频偏参数字段,所述元素标识字段的取值为第三数值,以指示所述预定义元素的类型为感知测量报告元素,所述测量结果字段的取值为所述N组第一测量结果,所述测量结果组数字段的取值为所述第一测量结果的组数N,所述载波频偏参数字段的取值为所述载波频率的偏移量。
- 根据权利要求14~18中任一项所述的装置,其特征在于,所述处理单元,还用于在根据N组第一测量结果生成感知测量报告信息之前,与所述第一站点进行M次感知测量,其中,每次所述感知测量均包括:接收所述第一站点发送的第一测量帧;向所述第一站点发送第二测量帧。
- 根据权利要求19所述的装置,其特征在于,所述收发单元,还用于在与所述第一站点进行M次感知测量之前,接收所述第一站点发送的感知测量预告信息,其中,所述感知测量预告信息用于指示所述第二站点进行感知测量。
- 根据权利要求20所述的装置,其特征在于,所述感知测量预告信息还携带所述感知测量的次数M和/或感知测量的终止信息。
- 根据权利要求20或21所述的装置,其特征在于,所述收发单元通过下述方式接收感知测量预告信息,其中:在第一时刻接收所述第一站点发送的感知测量预告信息,所述第一时刻为第一时间段中的一个时刻,所述第一时间段为所述第一站点能够进行感知测量的时间段与所述第二站点能够进行感知测量的时间段的交集。
- 根据权利要求21所述的装置,其特征在于,所述感知测量预告信息承载于空数据包预告帧中,其中:所述空数据包预告帧中的帧控制字段中的帧类型子字段的取值为第四数值,用于指示所述第二站点进行感知测量,所述空数据包预告帧的站点信息字段中的任一个子字段的取值为所述感知测量的次数M或所述感知测量的终止信息;或者所述空数据包预告帧的测量对话口令字段的预留比特的取值为第五数值,用于指示所 述第二站点进行感知测量,所述空数据包预告帧的站点信息字段中的任一个子字段的取值为所述感知测量的次数M或所述感知测量的终止信息;或者所述空数据包预告帧的站点信息字段的预留比特的一部分比特的取值为第六数值,用于指示所述第二站点进行感知测量,所述预留比特的另一部分比特的取值为所述感知测量的终止信息;或者所述空数据包预告帧的一个站点信息字段的预留比特的取值为第七数值,用于指示所述第二站点进行感知测量,所述空数据包预告帧的另一个站点信息字段的预留比特的取值为所述感知测量的次数M或所述感知测量的终止信息;或者所述空数据包预告帧中的站点信息字段中的关联标识子字段的取值为2008到2047之间的任一个整数,用于指示所述第二站点进行感知测量,所述站点信息字段中剩余字段的取值为所述感知测量的次数M或所述感知测量的终止信息。
- 根据权利要求20~23中任一项所述的装置,其特征在于,所述收发单元,还用于在接收所述第一站点发送的感知测量预告信息之前,接收所述第一站点发送的感知测量请求,所述感知测量请求携带所述第一站点能够进行感知测量的时间段、信道信息、所述第一站点和所述第二站点之间能够进行的感知测量的最大次数;其中,所述感知测量的最大次数大于或等于所述M;响应于所述感知测量请求向所述第一站点发送响应信息,所述响应信息携带所述第一时间段,其中,所述第一时间段为所述第一站点能够进行感知测量的时间段与所述第二站点能够进行感知测量的时间段的交集。
- 根据权利要求19~24中任一项所述的装置,其特征在于,所述处理单元,还用于根据在所述M次感知测量中接收到的M个第一测量帧确定N组第一测量结果。
- 一种感知测量信息交互方法,应用于第一站点,其特征在于,包括:接收第二站点发送的感知测量报告信息;所述感知测量报告信息包括N组第一测量结果,其中,所述N组第一测量结果与所述第一站点和所述第二站点之间的N个第一传输路径一一对应,每组所述第一测量结果均包括所对应的第一传输路径的到达角度、传输相对延时和多普勒频移;根据所述感知测量报告信息获取N个第一传输路径的到达角度、传输相对延时和多普勒频移。
- 根据权利要求26所述的方法,其特征在于,所述感知测量报告信息还包括:测量结果组数信息,所述测量结果组数信息用于指示所述第一测量结果的组数N。
- 根据权利要求27所述的方法,其特征在于,所述感知测量报告信息还包括:报告类型信息,所述报告类型信息用于指示所述感知测量报告信息的类型。
- 根据权利要求28所述的方法,其特征在于,所述感知测量报告信息还包括:载波频偏参数信息,所述载波频偏参数信息用于指示载波频率的偏移量。
- 根据权利要求29所述的方法,其特征在于,所述感知测量报告信息承载于位置测量报告帧中,其中,所述位置测量报告帧新增了测量结果字段和测量结果组数字段,所述测量结果字段的取值为所述N组第一测量结果,所述测量结果组数字段的取值为所述第一测量结果的组数N,所述位置测量报告帧中的类型字段的取值为第一数值,以指示所述位置测量报告帧的类型为感知测量报告帧,所述位置测量报告帧中的载波频偏参数字段的取值为所述载波频率的偏移量;或者所述感知测量报告信息承载于一预定义帧中,其中,所述预定义帧包括类型字段、测量结果字段、测量结果组数字段和载波频偏参数字段,所述类型字段的取值为第二数值,以指示所述预定义帧的类型为感知测量报告帧,所述测量结果字段的取值为所述N组第一测量结果,所述测量结果组数字段的取值为所述第一测量结果的组数N,所述载波频偏参数字段的取值为所述载波频率的偏移量;或者所述感知测量报告信息承载于一预定义元素中,其中,所述预定义元素包括元素标识字段、测量结果字段、测量结果组数字段和载波频偏参数字段,所述元素标识字段的取值为第三数值,以指示所述预定义元素的类型为感知测量报告元素,所述测量结果字段的取值为所述N组第一测量结果,所述测量结果组数字段的取值为所述第一测量结果的组数N,所述载波频偏参数字段的取值为所述载波频率的偏移量。
- 根据权利要求26~30中任一项所述的方法,其特征在于,所述方法还包括:在接收第二站点发送的感知测量报告信息之前,与所述第二站点进行M次感知测量,其中,每次所述感知测量均包括:向所述第二站点发送第一测量帧;接收所述第二站点发送的第二测量帧。
- 根据权利要求31所述的方法,其特征在于,所述方法还包括:在与所述第二站点进行M次感知测量之前,向所述第二站点发送感知测量预告信息,其中,所述感知测量预告信息用于指示所述第二站点进行感知测量。
- 根据权利要求32所述的方法,其特征在于,所述感知测量预告信息还携带所述感知测量的次数M和/或感知测量的终止信息。
- 根据权利要求32或33所述的方法,其特征在于,所述向所述第二站点发送感知测量预告信息包括:在第一时刻向所述第二站点发送感知测量预告信息,所述第一时刻为第一时间段中的一个时刻,所述第一时间段为所述第一站点能够进行感知测量的时间段与所述第二站点能够进行感知测量的时间段的交集。
- 根据权利要求34所述的方法,其特征在于,所述感知测量预告信息承载于空数据包预告帧中,其中:所述空数据包预告帧中的帧控制字段中的帧类型子字段的取值为第四数值,用于指示 所述第二站点进行感知测量,所述空数据包预告帧的站点信息字段中的任一个子字段的取值为所述感知测量的次数M或所述感知测量的终止信息;或者所述空数据包预告帧的测量对话口令字段的预留比特的取值为第五数值,用于指示所述第二站点进行感知测量,所述空数据包预告帧的站点信息字段中的任一个子字段的取值为所述感知测量的次数M或所述感知测量的终止信息;或者所述空数据包预告帧的站点信息字段的预留比特的一部分比特的取值为第六数值,用于指示所述第二站点进行感知测量,所述预留比特的另一部分比特的取值为所述感知测量的终止信息;或者所述空数据包预告帧的一个站点信息字段的预留比特的取值为第七数值,用于指示所述第二站点进行感知测量,所述空数据包预告帧的另一个站点信息字段的预留比特的取值为所述感知测量的次数M或所述感知测量的终止信息;或者所述空数据包预告帧中的站点信息字段中的关联标识子字段的取值为2008到2047之间的任一个整数,用于指示所述第二站点进行感知测量,所述站点信息字段中剩余字段的取值为所述感知测量的次数M或所述感知测量的终止信息。
- 根据权利要求32~35中任一项所述的方法,其特征在于,所述方法还包括:在向所述第二站点发送感知测量预告信息之前,向所述第二站点发送感知测量请求,所述感知测量请求携带所述第一站点能够进行感知测量的时间段、信道信息、所述第一站点和所述第二站点之间能够进行的感知测量的最大次数;其中,所述感知测量的最大次数大于或等于所述M;接收所述第二站点基于所述感知测量请求发送的响应信息,所述响应信息携带所述第一时间段,其中,所述第一时间段为所述第一站点能够进行感知测量的时间段与所述第二站点能够进行感知测量的时间段的交集。
- 根据权利要求31~36中任一项所述的方法,其特征在于,所述方法还包括:根据在所述M次感知测量中接收到的M个第二测量帧确定Z组第二测量结果;其中,所述Z组第二测量结果与所述第一站点和所述第二站点之间的Z个第二传输路径一一对应,每组所述第二测量结果均包括所对应的第二传输路径的到达角度、传输相对延时和多普勒频移;根据所述N个第一传输路径的到达角度、传输相对延时和多普勒频移和所述Z个第二传输路径的到达角度、传输相对延时和多普勒频移,确定每个无源目标的位置和瞬时速度,其中,所述无源目标位于所述传输路径上。
- 根据权利要求37所述的方法,其特征在于,所述确定每个无源目标的位置和瞬时速度包括:根据所述N个第一传输路径的到达角度、传输相对延时和多普勒频移和所述Z个第二传输路径的到达角度、传输相对延时和多普勒频移确定同一无源目标的所述第一传输路径和所述第二传输路径,以得到每个所述无源目标的第一传输路径和第二传输路径;根据每个所述无源目标的第一传输路径的到达角度和传输相对延时和第二传输路径 的到达角度和传输相对延时、所述第一站点和/或所述第二站点的位置,分别确定每个所述无源目标的位置;根据每个所述无源目标的第一传输路径的多普勒频移或第二传输路径的多普勒频移、所述测量帧的载波波长确定每个所述无源目标的瞬时速度。
- 一种感知测量信息交互方法,应用于第二站点,其特征在于,包括:根据N组第一测量结果生成感知测量报告信息,其中,所述N组第一测量结果与第一站点和所述第二站点之间的N个第一传输路径一一对应,每组所述第一测量结果均包括所对应的第一传输路径的到达角度、传输相对延时和多普勒频移;向所述第一站点发送所述感知测量报告信息。
- 根据权利要求39所述的方法,其特征在于,所述感知测量报告信息还包括:测量结果组数信息,所述测量结果组数信息用于指示所述第一测量结果的组数N。
- 根据权利要求40所述的方法,其特征在于,所述感知测量报告信息还包括:报告类型信息,所述报告类型信息用于指示所述感知测量报告信息的类型。
- 根据权利要求41所述的方法,其特征在于,所述感知测量报告信息还包括:载波频偏参数信息,所述载波频偏参数信息用于指示载波频率的偏移量。
- 根据权利要求42所述的方法,其特征在于,所述感知测量报告信息承载于位置测量报告帧中,其中,所述位置测量报告帧新增了测量结果字段和测量结果组数字段,所述测量结果字段的取值为所述N组第一测量结果,所述测量结果组数字段的取值为所述第一测量结果的组数N,所述位置测量报告帧的类型字段的取值为第一数值,以指示所述位置测量报告帧的类型为感知测量报告帧,所述位置测量报告帧中的载波频偏参数字段的取值为所述载波频率的偏移量;或者所述感知测量报告信息承载于一预定义帧中,其中,所述预定义帧中包括类型字段、测量结果字段、测量结果组数字段和载波频偏参数字段,所述类型字段的取值为第二数值,以指示所述预定义帧的类型为感知测量报告帧,所述测量结果字段的取值为所述N组第一测量结果,所述测量结果组数字段的取值为所述第一测量结果的组数N,所述载波频偏参数字段的取值为所述载波频率的偏移量;或者所述感知测量报告信息承载于一预定义元素中,其中,所述预定义元素包括元素标识字段、测量结果字段、测量结果组数字段和载波频偏参数字段,所述元素标识字段的取值为第三数值,以指示所述预定义元素的类型为感知测量报告元素,所述测量结果字段的取值为所述N组第一测量结果,所述测量结果组数字段的取值为所述第一测量结果的组数N,所述载波频偏参数字段的取值为所述载波频率的偏移量。
- 根据权利要求39~43中任一项所述的方法,其特征在于,所述方法还包括:在根据N组第一测量结果生成感知测量报告信息之前,与所述第一站点进行M次感 知测量,其中,每次所述感知测量均包括:接收所述第一站点发送的第一测量帧;向所述第一站点发送第二测量帧。
- 根据权利要求44所述的方法,其特征在于,所述方法还包括:在与所述第一站点进行M次感知测量之前,接收所述第一站点发送的感知测量预告信息,其中,所述感知测量预告信息用于指示所述第二站点进行感知测量。
- 根据权利要求45所述的方法,其特征在于,所述感知测量预告信息还携带所述感知测量的次数M和/或感知测量的终止信息。
- 根据权利要求45或46所述的方法,其特征在于,所述接收所述第一站点发送的感知测量预告信息包括:在第一时刻接收所述第一站点发送的感知测量预告信息,所述第一时刻为第一时间段中的一个时刻,所述第一时间段为所述第一站点能够进行感知测量的时间段与所述第二站点能够进行感知测量的时间段的交集。
- 根据权利要求46所述的方法,其特征在于,所述感知测量预告信息承载于空数据包预告帧中,其中:所述空数据包预告帧中的帧控制字段中的帧类型子字段的取值为第四数值,用于指示所述第二站点进行感知测量,所述空数据包预告帧的站点信息字段中的任一个子字段的取值为所述感知测量的次数M或所述感知测量的终止信息;或者所述空数据包预告帧的测量对话口令字段的预留比特的取值为第五数值,用于指示所述第二站点进行感知测量,所述空数据包预告帧的站点信息字段中的任一个子字段的取值为所述感知测量的次数M或所述感知测量的终止信息;或者所述空数据包预告帧的站点信息字段的预留比特的一部分比特的取值为第六数值,用于指示所述第二站点进行感知测量,所述预留比特的另一部分比特的取值为所述感知测量的终止信息;或者所述空数据包预告帧的一个站点信息字段的预留比特的取值为第七数值,用于指示所述第二站点进行感知测量,所述空数据包预告帧的另一个站点信息字段的预留比特的取值为所述感知测量的次数M或所述感知测量的终止信息;或者所述空数据包预告帧中的站点信息字段中的关联标识子字段的取值为2008到2047之间的任一个整数,用于指示所述第二站点进行感知测量,所述站点信息字段中剩余字段的取值为所述感知测量的次数M或所述感知测量的终止信息。
- 根据权利要求45~48中任一项所述的方法,其特征在于,所述方法还包括:在接收所述第一站点发送的感知测量预告信息之前,接收所述第一站点发送的感知测量请求,所述感知测量请求携带所述第一站点能够进行感知测量的时间段、信道信息、所述第一站点和所述第二站点之间能够进行的感知测量的最大次数;其中,所述感知测量的最大次数大于或等于所述M;响应于所述感知测量请求向所述第一站点发送响应信息,所 述响应信息携带所述第一时间段,其中,所述第一时间段为所述第一站点能够进行感知测量的时间段与所述第二站点能够进行感知测量的时间段的交集。
- 根据权利要求44~49中任一项所述的方法,其特征在于,所述方法还包括:根据在所述M次感知测量中接收到的M个第一测量帧确定N组第一测量结果。
- 一种感知测量信息交互装置,其特征在于,包括处理器和存储器,其中:所述存储器用于存储指令,当所述指令被所述处理器运行时,使所述感知测量信息交互装置执行权利要求26~38中任一项所述的方法或者执行权利要求39~50中任一项所述的方法。
- 一种计算机可读存储介质,其特征在于,所述计算机可读存储介质中存储有计算机程序代码,当所述计算机程序代码在处理器上运行时,使得所述处理器执行权利要求26~38中任一项所述的方法或者执行权利要求39~50中任一项所述的方法。
- 一种计算机程序产品,其特征在于,所述计算机程序产品存储有计算机指令,当所述计算机指令在处理器上运行时,使得所述处理器执行权利要求26~38中任一项所述的方法或者执行权利要求39~50中任一项所述的方法。
- 一种芯片,其特征在于,包括处理电路和输入输出接口电路,所述输入输出接口电路可以用于输入输出数据或信令信息,所述处理电路用于处理所述输入输出电路提供的数据或信令信息,以执行权利要求26~38中任一项所述的方法或者执行权利要求39~50中任一项所述的方法。
- 一种通信系统,其特征在于,包括第一站点和第二站点,其中:所述第一站点用于执行权利要求26~38中任一项所述的方法;所述第二站点用于执行权利要求39~50中任一项所述的方法。
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| WO2023130384A1 (zh) * | 2022-01-07 | 2023-07-13 | Oppo广东移动通信有限公司 | 感知上报方法和设备 |
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| WO2024011363A1 (zh) * | 2022-07-11 | 2024-01-18 | 北京小米移动软件有限公司 | 通信方法及装置、电子设备及存储介质 |
| WO2024016292A1 (zh) * | 2022-07-21 | 2024-01-25 | 北京小米移动软件有限公司 | 通信方法、装置、设备以及存储介质 |
| WO2024050803A1 (zh) * | 2022-09-09 | 2024-03-14 | 华为技术有限公司 | 感知方法、装置和系统 |
| WO2024098399A1 (zh) * | 2022-11-11 | 2024-05-16 | Oppo广东移动通信有限公司 | 无线感知的方法及设备 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113965954A (zh) | 2022-01-21 |
| EP4161135A1 (en) | 2023-04-05 |
| EP4161135B1 (en) | 2026-04-15 |
| US20230132850A1 (en) | 2023-05-04 |
| EP4161135A4 (en) | 2023-11-29 |
| CN113965954B (zh) | 2023-10-10 |
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