WO2017114381A1 - 一种精细时间测量ftm方法和通信设备 - Google Patents

一种精细时间测量ftm方法和通信设备 Download PDF

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Publication number
WO2017114381A1
WO2017114381A1 PCT/CN2016/112315 CN2016112315W WO2017114381A1 WO 2017114381 A1 WO2017114381 A1 WO 2017114381A1 CN 2016112315 W CN2016112315 W CN 2016112315W WO 2017114381 A1 WO2017114381 A1 WO 2017114381A1
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WO
WIPO (PCT)
Prior art keywords
ftm
communication device
information
communication
measurement
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PCT/CN2016/112315
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English (en)
French (fr)
Inventor
杨浔
Original Assignee
华为技术有限公司
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Publication date
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to EP16881170.1A priority Critical patent/EP3389217B1/en
Publication of WO2017114381A1 publication Critical patent/WO2017114381A1/zh
Priority to US16/022,612 priority patent/US10681579B2/en
Priority to US16/859,263 priority patent/US11381990B2/en

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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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L7/00—Arrangements for synchronising receiver with transmitter
    • H04L7/0008—Synchronisation information channels, e.g. clock distribution lines
    • H04L7/0012—Synchronisation information channels, e.g. clock distribution lines by comparing receiver clock with transmitter clock
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J3/00—Time-division multiplex systems
    • H04J3/02—Details
    • H04J3/06—Synchronising arrangements
    • H04J3/0635—Clock or time synchronisation in a network
    • H04J3/0638—Clock or time synchronisation among nodes; Internode synchronisation
    • H04J3/0658—Clock or time synchronisation among packet nodes
    • H04J3/0661—Clock or time synchronisation among packet nodes using timestamps
    • H04J3/0667—Bidirectional timestamps, e.g. NTP or PTP for compensation of clock drift and for compensation of propagation delays
    • 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
    • H04W4/025—Services making use of location information using location based information parameters
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W56/00—Synchronisation arrangements
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0446—Resources in time domain, e.g. slots or frames
    • 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
    • G01S13/06—Systems determining position data of a target
    • G01S13/08—Systems for measuring distance only
    • 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
    • G01S13/74—Systems using reradiation of radio waves, e.g. secondary radar systems; Analogous systems

Definitions

  • the present application relates to the field of communications, and in particular, to a time-based measurement method, a fine time measurement FTM method, and a communication device to which the method is applied.
  • Fine timing measurement is applied to many fields of modern science and technology, such as communication positioning and ranging.
  • FTM measurements are measured using a one-to-one measurement of information flight time.
  • the communication device and the response device using the measurement method need to perform multiple information interactions to know the distance between the communication device and the response device.
  • the embodiment of the present application provides a new flow of fine time measurement FTM, which replaces the one-to-one transmission of multiple FTM measurement frames in the prior art by transmitting one-to-many FTM measurement frames in a broadcast manner, which can reduce the response equipment and more The number of interactions of the communication devices in the FTM measurement, and simultaneous measurement of multiple communication devices, shortening the measurement duration and improving measurement efficiency.
  • a fine time measurement FTM method comprising: receiving an FTM request frame sent by at least two communication devices; transmitting a first FTM measurement frame according to the FTM request frame, the first FTM measurement frame including the at least Measurement parameters of each of the two communication devices and identification information for indicating each of the communication devices such that each communication device acquires measurement parameters of each of the communication devices based on the identification information.
  • multiple communication devices can receive the same The first FTM measurement frame learns its corresponding measurement parameters for FTM measurement.
  • the response device can send the first FTM measurement frame one-to-many in the form of a broadcast instead of one-to-one transmission of the plurality of first FTM measurement frames in the prior art, which can reduce the interaction process and save channel resources, and at the same time, multiple communication devices can Simultaneous FTM measurement can shorten the measurement time and improve measurement efficiency.
  • a Wi-Fi enabled terminal or access point or the like can be a communication device or a response device.
  • the first FTM measurement frame includes feedback indication information, where the feedback indication information is used to indicate a time interval at which each communication device sends the response information after receiving the first FTM measurement frame.
  • the plurality of communication devices can sequentially send the response information to the response device according to the feedback indication information, which can avoid the transmission failure caused by the conflict of the response information, and can accurately and efficiently feed back the response information to the response device according to the indication, thereby improving the measurement efficiency.
  • the measuring method may further include: receiving response information sent by each communication device according to the first FTM measurement frame; transmitting a second FTM measurement frame, where the second FTM measurement frame includes the first An FTM measures a transmission time of the frame, a reception time of the response information sent by each communication device, and the identification information, so that each communication device acquires a corresponding reception time according to the identification information.
  • the response device can transmit a plurality of first FTM measurement frames instead of one-to-one by transmitting the first FTM measurement frame in a one-to-many manner, and can replace one-to-one by transmitting one second FTM measurement frame in a one-to-many format.
  • Sending multiple second FTM measurement frames not only enables multiple communication devices to perform FTM measurements at the same time, but also further reduces the interaction process and improves measurement efficiency.
  • the ordering of the identification information of each communication device has a corresponding relationship with the ordering of the feedback response information of each of the communication devices after receiving the first FTM measurement frame.
  • the identification information is not only used to indicate that the plurality of communication devices acquire the measurement parameters corresponding to the plurality of communication devices, and the ordering of the identification information may also indicate the ordering of the feedback response information of each of the plurality of communication devices, so that the communication device receives the identifier. After the information, the order of the feedback information is obtained, so that the information transmission failure caused by the conflict can be avoided, and the measurement efficiency is improved.
  • the identifier information includes a media access control MAC address or an association identifier number AID.
  • the first FTM measurement frame includes feedback indication information, where the feedback indication information is used to indicate that each of the communication devices receives the first FTM measurement frame, The time interval between each communication device to feed back response information.
  • the plurality of communication devices can sequentially send the response information to the responding device according to the indication of the feedback indication information at a certain time interval, which can avoid the information transmission failure caused by the communication conflict, and can accurately and efficiently feed back the response information to the response device, thereby improving the response information. Measurement efficiency.
  • the at least two communications devices send the first response information after a short frame interval SIFS after receiving the first FTM measurement frame.
  • the measuring method may further include: after sending the first FTM measurement frame, sending the first non-data packet NDP; receiving the second NDP fed back by each communication device, and sending the second FTM And measuring the frame, the second FTM measurement frame includes a sending moment of sending the first NDP, a receiving moment of the second NDP sent by each communication device, and the identifier information, so that each communication device acquires the sending according to the identifier information. Time and corresponding receiving time.
  • Obtaining corresponding time information through interactive NDP can improve measurement accuracy and improve measurement accuracy.
  • At least one of the FTM request frame and the first FTM measurement frame includes function indication information for indicating that the communication device supports multi-user measurement.
  • the function indication information may enable the responding device or the communication device to know whether the other party can perform a many-to-one measurement operation, avoiding the response device blindly transmitting the first FTM measurement frame or the communication device blindly transmitting the FTM request frame.
  • the first FTM measurement frame further includes at least one of number information and message length information.
  • the number information is used to indicate the number of the at least two communication devices
  • the message length information is used to indicate the time information of each communication device and the length occupied by the parameter information
  • the message length information is used to indicate each communication device. The length of time or other information occupied by the information.
  • the number information may enable each communication device to know the specific number of the at least two communication devices, so that each communication device can estimate the time for performing FTM measurement according to the number, in accordance with the number of transmission orders and time intervals of the communication device. Allow each communication device to estimate the measurement latency.
  • the message length information enables each communication device to find its own measurement parameters, identification information or other information more quickly, improving measurement efficiency.
  • a fine time measurement FTM method comprising: receiving a first FTM request frame sent by at least one first communication device; transmitting a first FTM measurement frame according to the first FTM request frame; receiving the at least Each of the first communication devices of each of the first communication devices is based Receiving, by the first FTM, response information sent by the frame; receiving a second FTM request frame sent by the at least one second communication device; transmitting a second FTM measurement frame, where the second FTM measurement frame includes indicating the first communication device First identification information, a transmission time of the first FTM measurement frame, a reception time of response information of each first communication device, measurement parameters of each second communication device of the at least one second communication device, and an indication
  • the second identification information of each of the second communication devices so that each of the first communication devices acquires a corresponding receiving time according to the first identification information, and each of the second communication devices acquires each of the second identification devices according to the second identification information. Measurement parameters of the second communication device.
  • the receiving, by the receiving, the second FTM measurement frame, the first communication device can be informed of the corresponding receiving time, and the second communication device can also be informed of the corresponding measurement parameter.
  • the response device can transmit the first FTM measurement frame in a one-to-many manner to enable the first communication device and the second communication device to acquire the respective required information without the need to transmit a plurality of FTM measurement frames one-to-one as in the prior art. Not only can the interaction process be reduced to save channel resources, but multiple communication devices can simultaneously perform FTM measurement to reduce measurement time and improve measurement efficiency.
  • the first FTM measurement frame includes the measurement parameter of each of the first communication devices and the first identification information, so that each of the first communication devices acquires according to the first identification information.
  • the measurement parameters of each of the first communication devices are not limited to the measurement parameters of the first communication devices.
  • the plurality of communication devices may perform FTM by receiving the same first FTM measurement frame and obtaining their corresponding measurement parameters according to the first identification information. This method can reduce the number of interactions, and multiple communication devices can simultaneously perform FTM to further reduce measurement time and improve measurement efficiency.
  • the second FTM measurement frame includes feedback indication information, where the feedback indication information is used to indicate a time when the second communication device sends the response information after receiving the second FTM measurement frame. interval.
  • the at least each second communication device may sequentially send the response information to the responding device according to the feedback indication information, which not only avoids the transmission failure caused by the transmission conflict, but also can accurately and efficiently feed back the response information to the response device according to the indication, thereby improving the measurement. effectiveness.
  • the ordering of the second identifier information of each second communications device has a corresponding relationship with the order in which the second communications device sends the response information after receiving the second FTM measurement frame.
  • the second identification information is not only used to indicate that the second communication device acquires the measurement parameter corresponding to the second communication device, and the ordering of the second identification information may further indicate that each second communication device sends the response information.
  • the order of the second communication devices is such that each second communication device receives the identification information and knows the sequence of sending the response information, thereby avoiding the failure of the information transmission caused by the transmission conflict and improving the measurement efficiency.
  • the first identifier information and the second identifier information both include a media access control MAC address or an association identifier number AID.
  • the second FTM measurement frame includes feedback indication information, where the feedback indication information is used to indicate that each second communication device receives the second FTM measurement frame, each second The time interval between sending communication messages between communication devices.
  • the plurality of second communication devices may sequentially send the response information to the responding device according to the indication of the feedback indication information at a certain time interval, thereby avoiding the information transmission failure caused by the transmission conflict, and simultaneously and accurately and efficiently feeding back the response information to the response device. Improve measurement efficiency.
  • the at least two second communications devices feed back the first response information after a short frame interval SIFS after receiving the first FTM measurement frame.
  • the method may further include: receiving, by the at least one first FTM request frame, the first FTM request frame, sending the first FTM measurement frame according to the first FTM request frame, and transmitting the first FTM After measuring the frame, transmitting a first non-data packet NDP; receiving a second NDP sent by each of the at least one first communication device; receiving a second FTM request frame sent by the at least one second communication device; a second FTM measurement frame, the second FTM measurement frame including first identification information for indicating each of the first communication devices, a transmission time for transmitting the first NDP, and receiving of the second NDP for each of the first communication devices a measurement parameter of each of the at least one second communication device and second identification information for indicating each of the second communication devices.
  • the receiving, by the receiving, the second FTM measurement frame, the first communication device can obtain the time information corresponding to the first communication device, and can also enable the second communication device to obtain the measurement parameter corresponding to the second communication device.
  • the response device transmits a second FTM measurement frame to enable the first communication device and the second communication device to acquire the respective required information without the need to transmit multiple FTM measurement frames as in the prior art.
  • the measurement method can not only reduce the interaction process to improve the measurement efficiency, but also obtain the corresponding time information by interacting with the NDP to improve the measurement accuracy.
  • the method further includes: after transmitting the second FTM measurement frame, sending a third non-data packet NDP; receiving the fourth NDP sent by each second communication device; and sending the third FTM Measuring a frame, the third FTM measurement frame carrying the sending of the third NDP And receiving the receiving moment of the fourth NDP of each second communication device and the second identification information.
  • the response device sends the third NDP to the second communication device after the third FTM measurement frame is sent, and the corresponding time information is obtained by interacting with the NDP to improve the measurement accuracy, thereby improving the measurement accuracy.
  • the at least one of the first FTM request frame, the second FTM request frame, the first FTM measurement frame, and the second FTM measurement frame may be used to indicate that the communication device supports multiple users.
  • the function indication information of the measurement may be used to indicate that the communication device supports multiple users.
  • the function indication information may enable the responding device or the communication device to know whether the other party can perform a many-to-one measurement operation, avoiding the response device blindly transmitting the FTM measurement frame or the communication device blindly transmitting the FTM request frame.
  • the second FTM measurement frame further includes at least one of a quantity information and a message length information, where the number information is used to indicate the number of the first communication device and the second communication device.
  • the message length information is used to indicate the length of time information and parameter information occupied by each of the first communication device and each of the second communication devices, or the message length information is used to indicate the time of each second communication device. The length of information or other information.
  • the number information may enable the first communication device and the second communication device to know the specific number of communication devices participating in the multi-user measurement, so that each second communication device may be based on the number information, its own transmission order or time interval, and the like. Estimate the time of your own FTM.
  • the message length information may enable the first communication device and the second communication device to find their own corresponding identification information and information that needs to be acquired more quickly.
  • a fine time measurement FTM method comprising: a first communication device transmitting an FTM request frame to a response device; and a first communication device receiving a first FTM measurement frame sent by the response device according to the FTM request frame
  • the first FTM measurement frame includes measurement parameters of each of the at least two communication devices, the first FTM measurement frame further including identification information for indicating each of the communication devices; the first communication device according to the identification information Obtaining measurement parameters of the first communication device of the at least two communication devices.
  • the first communication device can obtain its own corresponding measurement parameter according to the identification information to perform FTM.
  • the first communication device is enabled to receive the same first FTM measurement frame with the plurality of communication devices to obtain respective measurement parameters. This method can reduce the number of interactions, shorten the measurement time and improve the measurement efficiency.
  • the first FTM measurement frame includes feedback indication information
  • the feedback indication information is used to indicate a time interval during which the first communication device sends the response information after receiving the first FTM measurement frame.
  • the first communication device can obtain the time when the response information is sent to the responding device according to the feedback indication information, and can avoid the information transmission failure caused by the transmission conflict when the other communication device sends the response information, thereby improving the measurement efficiency.
  • the measuring method further includes: the first communications device sends the response information to the responding device according to the first FTM measurement frame; the first communications device receives the second FTM measurement frame sent by the responding device.
  • the second FTM measurement frame includes a sending moment of the first FTM measurement frame sent by the responding device, a receiving moment of the response device receiving the response information of each communication device, and the identifier information.
  • the first communications device obtains the identifier according to the identifier information. The receiving moment corresponding to the first communication device.
  • the first communication device can acquire its own corresponding receiving moment according to the identification information, so that the first communication device can perform FTM measurement simultaneously with the plurality of communication devices, thereby improving measurement efficiency.
  • the identifier information of the first communications device is in the order of the identifier information of the at least two communications devices, and the first communications device sends the response information after receiving the first FTM measurement frame.
  • the order in which the at least two communication devices send the response information after receiving the first FTM measurement frame has a corresponding relationship.
  • the identification information may not only indicate that the first communication device acquires the measurement parameter corresponding to the first communication device, but the order of the identification information may further indicate that the first communication device sends the order of the response information, so that the first communication device receives the identifier information. After that, the order of sending the response information is known, thereby avoiding the information transmission failure caused by the transmission conflict and improving the measurement efficiency.
  • the identifier information includes a media access control MAC address or an association identifier number AID.
  • the first FTM measurement frame includes feedback indication information, where the feedback indication information is used to indicate that each of the communication devices receives the first FTM measurement frame, between each communication device The time interval for feedback response information.
  • the first communication device can send the response information to the responding device at a certain time interval according to the indication of the feedback indication information, can avoid the information transmission failure caused by the transmission conflict, and can accurately and efficiently feedback the response information to the response device, thereby improving the measurement. effectiveness.
  • the method may further include: after receiving, by the first communications device, the first FTM measurement frame, receiving the first non-data packet NDP; the first communications device sends the first communications device to the responding device Sending a second NDP; receiving a second FTM measurement frame, where the second FTM measurement frame includes a transmission time when the response device sends the first FTM measurement frame, and a reception time of the second NDP of the response device receiving the second communication device
  • the identification information is obtained by the first communication device according to the identification information.
  • Obtaining corresponding time information through interactive NDP can improve measurement accuracy and improve measurement accuracy.
  • At least one of the FTM request frame and the first FTM measurement frame includes function indication information for indicating that the communication device supports multi-user measurement.
  • the function indication information may enable the responding device or the communication device to know whether the other party can perform a many-to-one measurement operation, avoiding the response device blindly transmitting the first FTM measurement frame or the communication device blindly transmitting the FTM request frame.
  • the first FTM measurement frame further includes at least one of a quantity information and a message length information, where the number information is used to indicate the number of the at least two communication devices, where the message length information is used by The time information indicating the communication device and the length occupied by the parameter information are indicated.
  • the number information may enable the first communication device to know the specific number of the at least two communication devices, so that the first communication device can estimate the measurement waiting time according to the number and the transmission order or time interval of the self, and avoid The communication device blindly sends response information or participates in the FTM.
  • the message length information can enable the first communication device to find its own measurement parameters more quickly and improve the measurement efficiency.
  • a fourth aspect provides a fine time measurement FTM method, the method comprising: a first communication device transmitting a first FTM request frame to a response device; the first communication device receiving the response device transmitting the first frame according to the first FTM request frame An FTM measurement frame; the first communication device sends response information to the response device; the first communication device receives the second FTM measurement frame sent by the response device, the second FTM measurement frame includes first identification information indicating the first communication device Transmitting, by the responding device, a sending moment of the first FTM measurement frame, a receiving moment of the response device receiving the response information of the first communications device, a measurement parameter of each second communications device of the at least one second communications device, and And indicating the second identification information of each of the second communication devices; the first communication device acquiring, according to the first identification information, a reception time corresponding to the first communication device.
  • the first communication device may acquire a corresponding receiving moment according to the first identification information, and the first communication device may perform FTM measurement simultaneously with the plurality of communication devices to improve measurement efficiency.
  • the first FTM measurement frame includes the measurement parameter of the first communications device and the first identifier information
  • the method further includes: the first communications device acquiring the first identifier information according to the first identifier information Measurement parameters of the first communication device.
  • the first communication device may obtain the FTM measurement by using the first identification information to obtain the corresponding measurement parameter. Not only can the process of reducing the interaction save channel resources, but the first communication device can perform FTM measurement simultaneously with multiple communication devices to improve measurement efficiency.
  • the method may further include: the second FTM measurement frame includes feedback indication information, where the feedback indication information is used to indicate that each second communication device receives the second FTM measurement frame The time interval after which the response message is sent.
  • the second communication device can determine the time when the response information is sent to the responding device according to the feedback indication information, and can avoid the information transmission failure caused by the transmission conflict when the other communication device sends the response information, thereby improving the measurement efficiency.
  • the ordering of the second identifier information of each of the second communications devices has a corresponding relationship with the order in which the second communications device sends the response information after receiving the second FTM measurement.
  • the first identifier information and the second identifier information both include a media access control MAC address or an association identifier number AID.
  • the second FTM measurement frame includes feedback indication information, where the feedback indication information is used to indicate that each second communication device receives the second FTM measurement frame, the second each The time interval between sending communication messages between communication devices.
  • the plurality of second communication devices may sequentially send the response information to the responding device according to the indication of the feedback indication information at a certain time interval, thereby avoiding the information transmission failure caused by the transmission conflict, and simultaneously transmitting the response information to the response device accurately and efficiently. Improve measurement efficiency.
  • the at least two second communications devices feed back the first response information after a short frame interval SIFS after receiving the second FTM measurement frame.
  • the measuring method may further include: sending an FTM request frame to the response device; receiving the first FTM measurement frame sent by the response device; receiving the first NDP data packet sent by the response device; and transmitting the response device Sending a second NDP; receiving a second FTM measurement frame sent by the response device, where the second FTM measurement frame includes first identifier information for indicating the first communication device, a sending moment of the responding device to send the first NDP, and the response
  • the device receives the first communication a receiving moment of the second NDP of the device, a measurement parameter of each of the at least one second communication device, and second identification information indicating the second communication device; acquiring the first communication according to the first identification information The receiving time corresponding to the device.
  • the first communication device can be made to know the time information corresponding to itself by using the second identification information.
  • the response device transmits a second FTM measurement frame to enable the first communication device and the second communication device to acquire the respective required information without the need to transmit multiple FTM measurement frames as in the prior art.
  • the measurement method can not only reduce the interaction process to improve the measurement efficiency, but also obtain the corresponding time information by interacting with the NDP to improve the measurement accuracy.
  • the measuring method further includes: after the second communications device receives the second FTM measurement frame sent by the responding device, the second communications device receives the third NDP sent by the responding device; The device sends a fourth NDP to the responding device; the second communications device receives the third FTM measurement frame sent by the responding device, where the third FTM measurement frame includes a sending moment of the responding device sending the third NDP, and the responding device receives the second communications device a receiving moment of the fourth NDP and second identifier information for indicating the second communications device; the second communications device acquiring the corresponding receiving moment according to the second identifier information.
  • Obtaining corresponding time information through interactive NDP can improve measurement accuracy and improve measurement accuracy.
  • At least one of the first FTM request frame, the second FTM request frame, the first FTM measurement frame, and the second FTM measurement frame is configured to indicate that the communications device supports multi-user measurement. Function indication information.
  • the function indication information may enable the responding device or the communication device to know whether the other party can perform a many-to-one measurement operation, avoiding the response device blindly transmitting the corresponding FTM measurement frame or the communication device blindly transmitting the FTM request frame.
  • the second FTM measurement frame further includes at least one of number information and message length information, where the number information is used to indicate a sum of the number of the first communication device and the second communication device
  • the message length information is used to indicate the length information occupied by the time information and parameter information of each of the first communication device and each of the second communication devices, or the message length information is used to indicate each of the first communication devices and each of the first The length of time or other information occupied by the communication device.
  • the number information may enable the first communication device and the second communication device to know the specific number of communication devices participating in the multi-user measurement, so that each second communication device can according to the number information, itself Factors such as the transmission order or time interval estimate the FTM measurement delay, thereby improving measurement efficiency.
  • the message length information may enable the first communication device and the second communication device to find their own corresponding identification information and information that needs to be acquired more quickly.
  • the communication device for performing the method of any of the above first aspect or any of the possible implementations of the first aspect.
  • the communication device comprises a receiving module and a transmitting module for performing the first aspect or any of the possible implementations of the first aspect described above.
  • a communication device for performing the method of any of the above-described second aspect or any of the possible implementations of the second aspect.
  • the communication device comprises a receiving module and a transmitting module for performing the method of any of the possible implementations of the second aspect or the second aspect described above.
  • a communication device for performing the method of any of the above-described third or third aspects of the possible implementation.
  • the communication device comprises a receiving module, a transmitting module and an obtaining module for performing the method in any of the possible implementations of the third aspect or the third aspect described above.
  • a communication device for performing the method of any of the above-described fourth or fourth possible implementations.
  • the communication device comprises a receiving module, a transmitting module and an obtaining module for performing the method of any of the above-mentioned fourth or fourth aspects of the fourth aspect.
  • a communication device comprising: a transceiver, a memory, a processor, and a bus system.
  • the transceiver, the memory and the processor are connected by the bus system, the memory is for storing instructions for executing instructions stored in the memory, and the processor is further configured to control the transceiver to receive and transmit information or signals And when the processor executes the instructions stored by the memory, the executing causes the processor to perform the method of the first aspect or any possible implementation of the first aspect.
  • a communication device comprising a transceiver, a memory, a processor, and a bus system.
  • the transceiver, the memory and the processor are connected by the bus system
  • the memory is for storing instructions for executing instructions stored in the memory
  • the processor is further configured to control the transceiver to receive and transmit information or signals
  • the processor executes the instructions stored by the memory, the executing causes the processor to perform the method of any of the possible implementations of the second aspect or the second aspect.
  • a communication device including a transceiver, a memory, a processor, and a bus system.
  • the transceiver, the memory and the processor are connected by the bus system, the memory Storing instructions for executing instructions stored in the memory, the processor is further for controlling a transceiver to receive and transmit information or signals, and when the processor executes the instructions stored by the memory, the performing causes the processing
  • the method of the third aspect or any possible implementation of the third aspect is performed.
  • a communication device comprising a transceiver, a memory, a processor, and a bus system.
  • the transceiver, the memory and the processor are connected by the bus system
  • the memory is for storing instructions for executing instructions stored in the memory
  • the processor is further configured to control the transceiver to receive and transmit information or signals
  • the processor executes the instructions stored by the memory, the executing causes the processor to perform the method of any of the possible implementations of the fourth aspect or the fourth aspect.
  • a thirteenth aspect a computer readable medium for storing a computer program, the computer program comprising instructions for obtaining a method of the first aspect or any of the possible implementations of the first aspect.
  • a computer readable medium for storing a computer program comprising instructions for obtaining a method of any of the second aspect or any of the possible implementations of the second aspect.
  • a fifteenth aspect a computer readable medium for storing a computer program, the computer program comprising instructions for obtaining a method of any of the third aspect or any of the possible implementations of the third aspect.
  • a computer readable medium for storing a computer program comprising instructions for obtaining a method in any of the possible implementations of the fourth aspect or the fourth aspect.
  • the measurement parameter field carries the measurement parameter
  • the measurement parameter field may include a status indication (Status Indication) for indicating the success or failure of the request; a value for setting the length of time; Reserved; Number of bursts exponent is used to indicate the number of groups of measurement groups; Burst Duration: duration of time; FTM interval time (Min Delta FTM) is used to indicate the time interval of two consecutive FTM measurement frames; The Partial TSF timer is used to indicate the time when the response device sends the first FTM measurement frame after receiving the FTM request; the function indication (ASAP capable) is used to indicate whether the timestamp of the first FTM measurement frame can be obtained and is followed.
  • Status Indication for indicating the success or failure of the request
  • Reserved Number of bursts exponent is used to indicate the number of groups of measurement groups
  • Burst Duration duration of time
  • FTM interval time Min Delta FTM
  • the Partial TSF timer is used to indicate the
  • FTMs per burst is used to indicate FTM measurements in a set of measurements The number of times; FTM format and bandwidth is used to indicate the FTM frame type and occupied bandwidth (for example, the type of 11n, or the type of 11ac, 20M or 40M or 80M); the Burst period is used for Indicates the length of a measurement group (burst).
  • FIG. 1 is a schematic diagram of an application scenario of a measurement method according to an embodiment of the present application.
  • FIG. 2 is a schematic flow chart of a measurement method according to an embodiment of the present application.
  • FIG. 3 is another schematic flowchart of a measurement method according to an embodiment of the present application.
  • FIG. 4 is a schematic diagram of a behavior field of an FTM measurement frame in accordance with an embodiment of the present application.
  • FIG. 5 is a schematic diagram of a measurement parameter field in an FTM measurement frame according to an embodiment of the present application.
  • FIG. 6 is a schematic flowchart of a measurement method according to another embodiment of the present application.
  • FIG. 7 is a schematic flowchart of a measurement method according to still another embodiment of the present application.
  • FIG. 8 is a schematic structural block diagram of a communication device according to an embodiment of the present application.
  • FIG. 9 is a schematic structural block diagram of a communication device according to another embodiment of the present application.
  • FIG. 10 is a schematic structural block diagram of a communication device according to still another embodiment of the present application.
  • FIG. 11 is a schematic structural block diagram of a communication device according to still another embodiment of the present application.
  • FIG. 12 is a schematic structural block diagram of a communication device according to still another embodiment of the present application.
  • FIG. 13 is a schematic structural block diagram of a communication device according to still another embodiment of the present application.
  • FIG. 14 is a schematic structural block diagram of a communication device according to still another embodiment of the present application.
  • FIG. 15 is a schematic structural block diagram of a communication device according to still another embodiment of the present application.
  • Both the communication device and the response device can communicate with one or more core networks via a radio access network (eg, RAN, Radio Access Network), and both the communication device and the response device can be mobile terminals, such as mobile phones (or "Cellular" telephones and computers with mobile terminals, for example, portable, pocket-sized, handheld, computer-integrated or in-vehicle communication devices that exchange language or data with the wireless access network, and can simultaneously exchange voice and
  • the data communication device and the response device may also be an access point AP (Access Point) or a device such as a base station.
  • a terminal having Wi-Fi capability can be a communication device and a response device.
  • FIG. 1 illustrates a communication device according to an embodiment of the present application.
  • multiple communication devices may send an FTM request to the same responding device.
  • the response device needs to interact with each communication device multiple times. If the communication device takes a longer time to respond to the FTM in a public place such as an airport, a station, a hospital, etc., the measurement is performed. The method takes a long time and is inefficient.
  • the response device is not limited to a central control node such as an AP or a station device STA (Station).
  • An AP or STA can act as a response device for a certain period of time, and can also serve as a communication device that sends measurement requests at a certain time.
  • FIG. 2 shows a schematic flowchart of a measurement method 200 according to an embodiment of the present application.
  • the measurement method 200 may include:
  • the at least two communication devices send a fine time measurement FTM request frame to the response device.
  • the responding device sends, according to the FTM request frame, a first FTM measurement frame, where the first FTM measurement frame includes measurement parameters for indicating each of the at least two communication devices, and indicating the each communication device.
  • Identification information ;
  • Each communication device acquires corresponding measurement parameters according to the identifier information.
  • the at least two communication devices may send an FTM request frame to the responding device, and after the responding device receives the FTM request frame sent by the at least two communication devices, the responding device may send the at least two communications to the communication device.
  • the device transmits a first FTM measurement frame, the first FTM measurement frame including measurement parameters of the each communication device and identification information for indicating each of the communication devices.
  • the identifier information may include a Media Access Control (MAC) address or an Association ID (AID).
  • the identification information may be a MAC address of the communication device or an AID of the communication device.
  • the two communication devices may be a first communication device and a second communication device, and the first communication device and the second communication device respectively send an FTM request frame to the response device, and the response device receives the After the two FTM request frames, the first FTM measurement frame may be sent to the two communication devices by means of a broadcast, the FTM measurement frame including the first measurement parameter of the first communication device, the second measurement parameter of the second communication device, The first identification letter indicating the first communication device Information and second identification information for indicating the second communication device.
  • the first identifier information may be a MAC address of the first communications device
  • the second identifier information may be a MAC address of the second communications device.
  • the first communication device After receiving the first FTM measurement frame, the first communication device may obtain its own first measurement parameter according to the first identification information. Similarly, the second communication device may also acquire its second measurement parameter according to the second identification information. The first communication device and the second communication device can perform FTM measurement by receiving the same FTM measurement frame to learn the respective measurement parameters. The responding device sends an FTM measurement frame to enable the two communication devices to acquire the respective required measurement parameters without the need for the first communication device and the second communication device to separately transmit the first FTM measurement frame, as in the prior art. If there are multiple communication devices for measurement, the multiple communication devices can obtain the FTM by receiving the same first FTM measurement frame and knowing their own measurement parameters, which can reduce the number of interactions, and simultaneously measure multiple communication devices to improve measurement efficiency. .
  • the executive body can be a responsive device.
  • the measurement method 200 can be expressed as: receiving an FTM request frame sent by at least two communication devices; transmitting a first FTM measurement frame according to the FTM request frame, where the first FTM measurement frame includes each of the at least two communication devices Measurement parameters and identification information for indicating each of the communication devices.
  • the responding device may receive an FTM request frame sent by at least two communication devices, and send a first FTM measurement frame to the at least two communication devices by using the FTM request frame according to the FTM request frame, where the first FTM measurement frame Measurement parameters for each of the at least two communication devices and identification information for indicating each of the communication devices may be included.
  • the response device may send the first FTM measurement frame to multiple communication devices in a broadcast manner, which not only reduces the number of interactions but also enables multiple communication devices to perform simultaneous measurement, thereby shortening the measurement duration and improving the measurement efficiency.
  • the executive body may be the first communication device of the at least two communication devices, the measurement device in the communication device, or the network system that controls the communication device.
  • the measurement method 200 may also be expressed as: the first communication device sends an FTM request frame to the response device; and the first communication device receives the first FTM sent by the response device according to the FTM request frame.
  • the first FTM measurement frame comprising measurement parameters of each of the at least two communication devices, the first FTM measurement frame further comprising identification information indicating the each communication device; the first communication device according to the The identification information acquires measurement parameters of the first communication device of the at least two communication devices.
  • the first communications device may send an FTM request frame to the responding device, the first communications The device may further receive a first FTM measurement frame sent by the response device according to the FTM request frame, where the first FTM measurement frame may include measurement parameters of the plurality of communication devices and identification information of the plurality of communication devices, where the multiple communication devices include The first communication device.
  • the first FTM measurement frame includes a first measurement parameter and first identification information of the first communication device, and may further include measurement parameters and identification information of other communication devices, such as the second and third communication devices.
  • the first communication device may obtain the first measurement parameter corresponding to the first identification information, so that the first communication device may perform FTM measurement according to the first measurement parameter.
  • the response device in the measurement method 200 can receive an FTM request frame sent by the communication device, the FTM request frame being used to request an FTM measurement. It should be understood that the response device may further receive the communication device to send other forms of request frames for requesting FTM measurement, or the network system sends indication information indicating that the communication device and the responding device perform FTM measurement to the response device, or The application layer above the MAC layer sends indication information indicating that the communication device and the response device perform FTM measurement to the response device, and the responding device receiving the communication device to send the FTM request frame is only a preferred embodiment of the present application.
  • the essence of the measurement method may be to transmit the first FTM measurement frame in a one-to-many manner instead of the prior art.
  • One-to-one transmission of FTM measurement frames not only reduces the interaction process, but also saves channel resources.
  • multiple communication devices can simultaneously perform FTM measurement to reduce measurement time and improve measurement efficiency.
  • the measuring method may further include:
  • the responding device sends a second FTM measurement frame, where the second FTM measurement frame includes a sending moment of the first FTM measurement frame, a receiving moment of the response information of each communication device, and the identifier information.
  • Each communication device acquires a corresponding receiving moment according to the identifier information.
  • the response information may be an acknowledgement information ACK (Acknowledgement) or other information such as a non-packet NDP (Non-Data Packet) for performing FTM measurement.
  • ACK acknowledgement information
  • NDP Non-Data Packet
  • the method takes an ACK as an example, and the responding device can send the first FTM measurement frame; the each communication device can receive the first FTM measurement frame and send an ACK to the response device; and the response device respectively receives the ACK sent by each communication device.
  • the response device can be in the form of a broadcast to each of the communication devices Transmitting a second FTM measurement frame, where the second FTM measurement frame includes a sending moment of the first FTM measurement frame sent by the response device, a receiving moment of receiving the each acknowledgement information, and the identifier information; the communication device receives the first After the FTM measurement frame, the corresponding receiving time is obtained according to the identification information.
  • the receiving moment corresponding to each communication device is a receiving moment at which the response device receives the response information sent by the communications device.
  • the two communication devices may be a first communication device and a second communication device, and the first communication device and the second communication device respectively send an FTM request frame to the response device.
  • the receiving device in response to the time after two FTM request frame may be transmitted in the form of a first FTM broadcast measurement frame, the device transmits in response to the first FTM measurement frame is T 1;
  • the first FTM measurement frame may comprise a first communication a first measurement parameter of the device, a second measurement parameter of the second communication device, first identification information for indicating the first communication device, and second identification information for indicating the second communication device.
  • the first communication device may acquire its own first measurement parameter according to the first identifier information, where the time at which the first communication device receives the first FTM measurement frame is T 2 ; communication device in response to the first ACK transmission device, a first communication device is transmitted first ACK time T 3; device receives the response to the first communication device transmits a first ACK, the ACK is received the first time is T 4.
  • the second communication device may acquire their second measurement parameter according to the second identification information
  • the second communication device receives the first frame is a time measuring FTM T 5
  • the second communication device the second ACK the second ACK transmission time of the first communication device sends the response device is T 6
  • second ACK ACK reception timing in response to the second device receives the first communication device is transmitting T 7.
  • the responding device may send the second FTM measurement frame to the first communication device and the second communication device in a broadcast form.
  • the second FTM measurement frame includes a transmission time T 1 , a reception time T 4 , a reception time T 7 , and first identification information and second identification information.
  • the first communication device After receiving the second FTM measurement frame, the first communication device can learn its corresponding receiving time T 4 by using the first identification information, and the second communication device can know the corresponding receiving time T 7 and the sending time T 1 as The common portion is simultaneously acquired by the first communication device and the second communication device.
  • the distance between the first communication device and the response device can be obtained by the method, and the distance between the second communication device and the response device can be obtained by the same reason.
  • the measurement method 200 is only taking two communication devices as an example, and the measurement method can also It is the simultaneous measurement of FTM by multiple communication devices.
  • each communication device may send at least one FTM measurement request frame to the response device to ensure that the response device receives the FTM measurement request sent by the communication device, and the response device may also be broadcasted.
  • the form transmits at least one first FTM measurement frame and at least one second FTM measurement frame to ensure that each communication device can receive the FTM measurement frame transmitted by the response device in a broadcast form.
  • the response device may record that the sending time of sending the first FTM measurement frame and the receiving time of receiving the ACK may also be that other timing devices record the corresponding time, and the similarity may be that the communication device records and receives the reception of the first FTM measurement frame.
  • the time and the sending time of sending the ACK may also be other timekeeping device recording response time, which is not limited herein.
  • the response device can transmit the first FTM measurement frame instead of the plurality of first FTM measurement frames by means of broadcasting, and can transmit the first FTM measurement frame by one-to-many, and can send the second FTM by broadcast.
  • the measurement frame replaces the plurality of second FTM measurement frames to realize one-to-many transmission of the second FTM measurement frame, which not only enables multiple communication devices to simultaneously perform FTM, but also further reduces the interaction process and improves measurement efficiency.
  • the ordering of the identification information of each communication device has a corresponding relationship with the order in which the communication device sends the response information after receiving the first FTM measurement frame.
  • the ordering of the identification information of each communication device may be an order of the identification information of the identification information of each communication device in all communication devices, and each communication device sends the response information after receiving the first FTM measurement frame.
  • the ordering may be a sequence of sending response information after each communication device receives the first FTM measurement frame.
  • the order in which the three communication devices receive the feedback response information of the first FTM measurement frame The order may be C3 first transmission, C2 second transmission, C1 last transmission, or the order in which the three communication devices receive the first FTM measurement frame transmission response information may be C1 first transmission, C2 second transmission, and C3 last transmission.
  • the order of the identification information of each communication device may be the same as the order in which the communication information is sent after the first FTM measurement frame is received by the communication device. The relationship is not limited herein.
  • the identification information may be sorted according to its MAC address, and the identification information of the communication device may be ranked according to the order in which the response device receives the communication device FTM request frame. Order, how to sort the identification information This application is not limited herein.
  • the first FTM measurement frame may include feedback indication information, where the feedback indication information is used to indicate the time that each communication device sends the response information after receiving the first FTM measurement frame. interval.
  • the three communication devices respectively send an FTM request frame to the response device, and the response device receives the request of the three communication devices.
  • the first FTM measurement frame may be sent to the three communication devices in a broadcast form, where the first FTM measurement frame includes identification information of the three communication devices, measurement parameters of three communication devices, and feedback indication information.
  • the three communication devices may obtain their own corresponding measurement parameters by using the identification information, and indicate, according to the feedback indication information, when to send an ACK to the response device.
  • the number of the feedback indication information corresponds to the number of the at least two communication devices, that is, the different communication devices correspond to different feedback indication information, so that the communication device acquires the time when the response information is sent by itself according to the feedback indication information.
  • the first feedback indication information of C1 is 100us
  • the second feedback indication information of C2 is 200us
  • the third feedback indication information of C3 is 350us
  • C1 receives the first FTM measurement frame and sends an ACK to the response device after the interval 100us, C2.
  • the interval 200us sends an ACK to the responding device
  • C3 receives the first FTM measurement frame and sends an ACK to the responding device after the interval 350us.
  • the three communication devices sequentially send acknowledgment information to the responding device in chronological order, thereby avoiding the failure of the transmission information caused by the transmission conflict, and improving the measurement efficiency.
  • the first FTM measurement frame includes feedback indication information, where the feedback indication information is used to indicate that each communication device receives the first FTM measurement frame, and each of the communication devices The time interval between feedback response information.
  • the feedback indication information may indicate that the time for feeding back response information between the three communication devices is a fixed value T, that is, three communication devices share one feedback indication information.
  • T time for feeding back response information between the three communication devices
  • the three communication devices sequentially feed back the response information in the order of C2, C1, and C3.
  • the three communication devices receive the first FTM measurement frame and the C2 first feedback response information, and the C2 feedback response information is after the interval T time and the C1 feedback response information.
  • C1 feedback response information C3 feedback response information after interval T time. In other words, after C2 first feedback response information, C1 feedback response information after interval T time, interval 2T time, C3 feedback response information.
  • the at least two communication devices feed back the first response after a short frame interval SIFS after receiving the first FTM measurement frame.
  • the C1 sends the response information after the first FTM measurement frame
  • the C1 passes the SIFS+T time feedback response information
  • the C3 receives the first FTM measurement frame and passes the SIFS. +2T time feedback response information.
  • T may be the SIFS + T ACK wherein short frame interval SIFS (Short interframe space) may be 16us, T ACK is sent or received an acknowledgment information may be a time 40us.
  • FIG. 4 shows a schematic diagram of the behavior of an FTM measurement frame.
  • the FTM measurement frame shown in FIG. 4 may be the first FTM measurement frame.
  • the classification field is used to indicate the type of the action frame; the public action field is used to distinguish different common behavior frame formats immediately after the classification field; TOD (Time Of Departure) is used to carry the transmission time; TOD error is used to indicate the time precision; TOA (Time Of Arrival) is used to carry the reception time; TOA error is used to indicate the time precision; Fine time measurement parameter field (Fine Timing) Measurement Parameters) for carrying FTM measurement parameters.
  • TOD Time Of Departure
  • TOD error is used to indicate the time precision
  • TOA Time Of Arrival
  • TOA error is used to indicate the time precision
  • Fine time measurement parameter field Fine Timing Measurement Parameters
  • the first FTM measurement frame can be understood as a measurement frame including common information and dedicated information, wherein the common information refers to information that can be shared by a plurality of communication devices, the dedicated information referring to information specific to each communication device.
  • the dedicated information may include respective measurement parameters for each communication device.
  • the feedback indication information may indicate how long each communication device returns feedback response information after receiving the first FTM measurement frame.
  • the feedback indication information is inserted into the public information, the feedback indication information is used to indicate a time interval during which the communication device feeds back the response information after the first FTM measurement frame is received by each communication device.
  • the location of the feedback indication information may be the same or different in the location where each dedicated part is inserted, which is not limited herein. Similarly, the feedback indication information may not be limited in the location where the public information is inserted.
  • the plurality of communication devices can sequentially send the response information to the response device according to the feedback indication information at a corresponding time interval, which can avoid the information transmission failure caused by the transmission conflict, and can accurately and efficiently feed back the confirmation information to the response device, thereby improving the measurement efficiency.
  • At least one of the FTM request frame and the first FTM measurement frame may include function indication information for indicating that the communication device supports multi-user measurement. That is, the FTM request frame may include the function indication information; or the first FTM measurement frame may include the function indication information; or the FTM request frame and the first FTM measurement frame both include function indication information.
  • the function indication information can be carried in the measurement parameter field, and FIG. 5 shows a schematic diagram of the Fine Timing Measurement Parameters Field Format.
  • the measurement parameter field may include a status indication (Status Indication) for indicating that the request is successful or Failure; Value is used to set the length of time; Reserved; Number of bursts exponent is used to indicate the number of groups in the measurement group; Burst Duration: Continuation time; FTM interval (Min Delta FTM) is used to indicate the time interval of two consecutive FTM measurement frames; the Partial TSF timer is used to indicate the time when the response device sends the first FTM measurement frame after receiving the FTM request; the function indication (ASAP capable) ) is used to indicate whether the timestamp of the first FTM measurement frame can be obtained and fed back in subsequent FTM frames; ASAP is used to indicate whether it is desired to start FTM measurement as soon as possible; FTMs per burst is used to indicate FTM in a set of measurements The number of measurements; FTM format
  • the function indication information may enable the responding device or the communication device to know whether the other party can perform a many-to-one measurement operation, avoiding the response device blindly transmitting the first FTM measurement frame or the communication device blindly transmitting the FTM request frame.
  • the FTM measurement frame shown in FIG. 4 may be the first FTM measurement frame.
  • the first FTM measurement frame may further include at least one of number information and message length information, where the number information is used to indicate the number of the at least two communication devices, and the message length information is used to indicate each The time information of the communication device and the length occupied by the parameter information or the message length information are used to indicate the length of time information or other information occupied by each communication device.
  • the number information may enable each communication device to know the specific number of the at least two communication devices, so that each communication device can estimate the time for performing FTM measurement according to the number information and its own transmission order or time interval. And estimating the measurement waiting time, avoiding the communication failure of the communication device blindly sending the response information or blindly waiting for the measurement, thereby improving the measurement efficiency.
  • the message length information can make each communication device find its own required information (such as time information or measurement parameters, etc.) more quickly, and improve measurement efficiency.
  • a plurality of communication devices transmit an FTM request frame to the response device
  • the response device may transmit at least one of the first FTM measurement frame and the second FTM measurement frame to the plurality of communication devices by broadcasting, for the plurality of The communication device performs measurements at the same time.
  • the response device may also receive an FTM request frame sent by another communication device before sending the second FTM measurement frame to the communication device. The following describes the measurement method in this scenario.
  • FIG. 6 is a schematic flowchart of a measurement method according to another embodiment of the present application, as shown in FIG.
  • the measurement method can include:
  • the at least one first communications device sends a first FTM request frame to the responding device.
  • the response device sends the first FTM measurement frame according to the first FTM request frame.
  • the at least one first communications device sends response information to the responding device.
  • the at least one second communications device sends a second FTM request frame to the responding device.
  • the responding device sends a second FTM measurement frame, where the second FTM measurement frame includes first identifier information for indicating the first communications device, a sending moment of the responding device sending the first FTM measurement frame, and the responding device receives the at least one a receiving moment of response information transmitted by each first communication device in the first communication device, second identification information indicating each second communication device of the at least one second communication device, and each of the second communication devices Measurement parameters.
  • Each of the first communications devices acquires a corresponding receiving moment according to the first identifier information, where each second communications device acquires a corresponding measurement parameter according to the second identifier information.
  • the response information may be an acknowledgement information ACK (Acknowledgement) or a non-packet NDP (Non-Data Packet).
  • ACK acknowledgement information
  • NDP Non-Data Packet
  • the at least one first communications device may send a first FTM request frame to the responding device, and after receiving the first FTM request frame, the responding device may send the first FTM measurement frame according to the first FTM request frame.
  • the at least one first communication device may separately send an ACK to the response device, and the response device receives the ACK, after the response device sends the first FTM measurement frame and before sending the second FTM measurement frame,
  • the responding device may receive the second FTM request frame sent by the at least one second communication device, and the responding device may send a second FTM measurement frame to the at least one first communication device and the at least one second communication device in a broadcast manner.
  • the second FTM measurement frame may include first identification information indicating each of the at least one first communication device, a transmission moment at which the response device transmits the first FTM measurement frame, and the response device receives each a receiving moment of the ACK sent by the first communications device, a measurement parameter of each of the at least one second communications device, and a Second identification information of each second communication device, each of the first communication devices acquires time information (the transmission time and the reception time) corresponding to the first communication device according to the first identification information, and each of the second communication devices is configured according to the second The identification information obtains its own corresponding measurement parameters.
  • the obtaining, by the first communications device, the corresponding receiving moment refers to: receiving, by the responding device, a receiving moment of the ACK sent by the first communications device.
  • the first identifier information and the second identifier information may each include a Media Access Control (MAC) address or an association identifier (AID).
  • the first identification information may be the first communication device a MAC address or an AID of the first communication device; the second identification information may be a MAC address of the second communication or an AID of the first communication device.
  • the sending device sends the sending moments of the first FTM measurement frame as common information by the multiple first communications devices, so the first communications device obtains according to the first identifier information. Your own corresponding receiving time.
  • the first communication device may send a first FTM request frame to the response device, and the response device may receive the first FTM request frame.
  • a communication apparatus transmitting a first FTM measurement frame
  • a first FTM device sends the response time of the measurement frame is T 1
  • the first communications device sends a response to the first device receives the ACK frame FTM measurement
  • the time at which the first communication device sends the ACK is T 3
  • the response device receives the ACK, the time at which the response device receives the ACK is T 4 ;
  • the response device is transmitting the first FTM measurement
  • Receiving after the frame, the second FTM request frame sent by the second communication device, before transmitting the second FTM measurement frame
  • the response device may receive the second FTM request frame to the first communication device and the second communication device by means of broadcast transmitting a second FTM measurement frame, the second frame comprises transmit
  • the receiving, by the second communication device, the first communication device can obtain the time information corresponding to the first FTM measurement frame (ie, the transmission time T 1 and the reception time T 4 ), and can also enable the second communication device to obtain the measurement parameter corresponding to the second communication device.
  • the response device transmits a second FTM measurement frame to enable the first communication device and the second communication device to acquire the respective required information without the need to transmit multiple FTM measurement frames as in the prior art. Not only can the interaction process be reduced to save channel resources, but multiple communication devices can simultaneously perform FTM measurement to reduce measurement time and improve measurement efficiency.
  • the response device may first receive a first FTM request frame of a first communication device, and then receive a second FTM request frame of a second communication device; or may first receive one a first FTM request frame of the first communication device, and then a second FTM request frame of the plurality of second communication devices; or a first FTM request frame of the plurality of first communication devices is received first, and then received a second FTM request frame to a second communication device; or a first FTM request frame in which the response device first receives the plurality of first communication devices, Then, the second FTM request frame of the plurality of second communication devices is received, and the application is not limited thereto.
  • the FTM measurement frame sent by the response device includes identification information of the plurality of communication devices to enable the plurality of communication devices to acquire corresponding information, or the communication device determines that it needs according to its own identification information after receiving the FTM measurement frame.
  • the FTM can be performed by the method proposed in the embodiment of the present application.
  • the first FTM measurement frame may include measurement parameters of each of the at least one first communication device and a first identifier for indicating each of the first communication devices.
  • the first communication device obtains its own measurement parameter according to the first identification information.
  • the responding device may send the first FTM measurement frame to the first communications device in a unicast or broadcast form. If the responding device receives the plurality of first FTM request frames sent by the plurality of first communications devices, the responding device may directly send the first FTM measurement frame in a broadcast manner, where the first FTM measurement frame may include multiple a measurement parameter and first identification information of each of the first communication devices in the communication device, the first FTM measurement frame may not include the measurement parameter and the first identification information; the response device may also be one by one according to the prior art.
  • the first FTM measurement frame is sent to the multiple first communications devices, which is not limited herein.
  • the ordering of the second identification information of each of the at least one second communication device and the second communication device after receiving the second FTM measurement frame has a corresponding relationship.
  • the three second communication devices receive the The sequence of the second FTM measurement frame feedback response information may be C3 first transmission, C2 second transmission, C1 last transmission, or the order of the three second communication devices receiving the second FTM measurement frame feedback response information may also be C1 first. Send, C2 second transmission, C3 last transmission.
  • the corresponding relationship of the present application may be that the ranking of the identification information of each second communication device may be the same as the order of the feedback response information after the second communication device receives the second FTM measurement frame.
  • the application is not limited herein.
  • the second identification information may be sorted according to its MAC address, and the identification information of the communication device may be sorted according to the order in which the response device receives the second communication device FTM request frame, and how the identification information is sorted. Not limited.
  • the transmission time and the reception time in the present application should be limited according to their specific transmission target and reception target.
  • the second FTM measurement frame may include feedback indication information, where the feedback indication information is used to indicate that each second communication device of the at least one second communication device is receiving the second FTM The time interval for measuring response information after the frame is measured.
  • the three communication devices respectively send the second FTM request frame to the responding device, and the responding device receives the three After the second FTM request frame of the communication device, the second FTM measurement frame is sent in the form of a broadcast, where the second FTM measurement frame includes the first identification information for indicating the first communication device, and the response device sends the first a transmission time of an FTM measurement frame, a reception time at which the response device receives each first communication device ACK, a measurement parameter of each of the three second communication devices, and a second indication for the three second communication devices Identification information and feedback indication information.
  • the three second communication devices may respectively obtain their own corresponding measurement parameters by using the second identification information, and indicate, according to the feedback indication information, when to send an ACK to the response device. For example, if the first feedback indication information of C1 is 100us, the second feedback indication information of C2 is 200us, and the third feedback indication information of C3 is 350us, C1 receives the second FTM measurement frame and sends an ACK to the response device after the interval 100us, C2. After receiving the second FTM measurement frame, the interval 200us sends an ACK to the responding device, and after receiving the second FTM measurement frame, the C3 sends an ACK to the responding device.
  • the three second communication devices sequentially send the acknowledgement information to the responding device in chronological order, thereby avoiding the transmission conflict and causing the transmission information to fail, thereby improving the measurement efficiency.
  • the second FTM measurement frame includes feedback indication information, where the feedback indication information is used to indicate that each second communication device receives the second FTM measurement frame, the second each The time interval between feedback communication messages between communication devices.
  • the feedback indication information may indicate that the time for feeding back response information between the three second communication devices is a fixed value T, assuming that the three second communication devices sequentially feed back
  • the order of the response information is C2, C1, C3.
  • the three communication devices receive the first FTM measurement frame, and the C2 first feedback response information, the C2 feedback response information interval T, the C1 feedback response information, and the C1 feedback response information interval T.
  • C3 feedback response information the at least two second communication devices feed back the first response after a short frame interval SIFS after receiving the second FTM measurement frame.
  • the C1 after receiving the first FTM measurement frame, the C1 sends the response information after the SIFS time, and after receiving the second FTM measurement frame, the C2 passes the SIFS+T time feedback response information, and the C3 receives the second FTM measurement frame and passes the SIFS. +2T time feedback response information.
  • T may be the SIFS + T ACK wherein short frame interval SIFS (Short interframe space) may be 16us, T ACK is sent or received an acknowledgment information may be a time 40us.
  • FIG. 4 shows a schematic diagram of the behavior of an FTM measurement frame.
  • the FTM measurement frame shown in FIG. 4 may be a second FTM measurement frame.
  • the classification field is used to indicate the type of the action frame; the public action field is used to distinguish different common behavior frame formats immediately after the classification field;
  • TOD Time Of Departure
  • TOA Time of Arrival
  • TOA error Used to represent time precision; Fine Timing Measurement Parameters for carrying FTM measurement parameters.
  • the second FTM measurement frame may be understood to include public information and dedicated information, wherein the common information refers to information that can be shared by a plurality of communication devices, the dedicated information being information specific to each communication device.
  • the dedicated information may include time information of the first communication device (eg, a transmission time at which the FTM measurement frame is transmitted and a reception time at which the response information is received), identification information, and measurement parameters and identification information of the second communication device. If the feedback indication information is separately inserted into the dedicated information, the feedback indication information may indicate how long each of the two communication devices delays the response information after receiving the second FTM measurement frame.
  • the feedback indication information is used to indicate the time for each of the second communication devices to feed back the response information after receiving the second FTM measurement frame. interval. It should be understood that the location of the feedback indication information may be the same or different in the location where each dedicated part is inserted, which is not limited herein. Similarly, the feedback indication information may not be limited in the location where the public information is inserted.
  • the plurality of second communication devices may sequentially send the response information to the responding device according to the feedback indication information at a fixed time interval or a determined time, may avoid the information transmission failure caused by the transmission conflict, and may provide an accurate and efficient feedback confirmation to the response device. Information that improves measurement efficiency.
  • At least one of the first FTM request frame, the second FTM request frame, the first FTM measurement frame, and the second FTM measurement frame may include function indication information for indicating that the communication device supports multi-user measurement.
  • the function indication information may enable the responding device or the communication device to know whether the other party can perform a many-to-one measurement operation, avoiding the response device blindly transmitting the corresponding FTM measurement frame or the communication device blindly transmitting the FTM request frame.
  • the second FTM measurement frame further includes at least one of number information and message length information, where the number information is used to indicate a sum of the number of the first communication device and the second communication device, where the message length information is used.
  • the length information occupied by each of the first communication device and each of the second communication devices and the length of the parameter information are indicated.
  • the number information may be such that each of the second communication devices knows the sum of the number of the first communication device and the second communication device, so that each of the second communication devices can combine its own transmission order or time interval according to the number information.
  • the factors estimate the length of the FTM measurement. If the estimation requires a long wait time, the request can be re-issued to perform FTM measurements with other responding devices or FTM is not currently performed.
  • Each of the second communication devices can estimate the timing of the self-feedback response information, avoiding the communication device blindly feeding back the confirmation information, thereby improving the measurement efficiency.
  • the message length information can make each first communication device more convenient to find its own time information, so that each second communication device can find its own measurement parameters more quickly and improve the measurement efficiency.
  • the above mainly describes obtaining time information by interactively confirming information.
  • the measurement accuracy can be improved by interacting with non-packet NDP. As shown in Figure 7,
  • the at least one first communications device sends a first FTM request frame to the responding device.
  • the response device sends a first FTM measurement frame according to the first FTM request frame, where the first FTM measurement frame includes measurement parameters of each of the at least one first communication device and is used to indicate the first one. Identification information of the communication device;
  • the first communication device obtains the measurement parameter corresponding to the first communication device according to the identifier information.
  • the response device sends the first NDP to the at least one first communication device in a broadcast form.
  • the at least one first communications device sends the second NDP to the responding device after receiving the first NDP.
  • the at least one second communications device sends a second FTM request frame to the responding device.
  • the responding device sends a second FTM measurement frame, where the second FTM measurement frame includes first identifier information for indicating each of the first communications devices, a sending moment of the responding device to send the first NDP, and the responding device receives at least one a receiving moment of the two NDPs, a measurement parameter of each of the at least one second communication device, and second identification information indicating the second communication device.
  • Each of the first communications devices acquires a receiving time corresponding to the first identity information according to the first identity information.
  • the second communications device obtains the measurement parameter corresponding to the second identity device according to the second identity information.
  • the response device may receive a first FTM request frame sent by two first communication devices, and may send the first FTM in a broadcast manner according to the first FTM request frame. Measure the frame so that the two first communication devices respectively know their own measurement parameters, and after the first FTM measurement frame is sent by the response device, the first NDP is sent in the form of a broadcast, and the sending time of the first FTM measurement frame is sent by the responding device.
  • the two first communication devices receive the first NDP, and the times at which the two first communication devices receive the first NDP are T 2 and T 5 respectively; the two first communication devices respectively send the second NDP to the responding device,
  • the first communication device sends the second NDP time T 3 and T 6 respectively , a second communication device sends a second FTM request frame to the response device, and the response device receives the second FTM request frame and the two second after NDP, can be transmitted to the first communication device and a two second communication device in the form of a second FTM broadcast measurement frame, the frame comprising a second FTM measurement device sends a first response to NDP transmission time T 1, in response to Preparation of NDP receive two second reception time T 4 and T 7, the first two of each of the first communication device identification information, measurement parameters and the second communication device for indicating a second identification of the second communication device
  • the two first communication devices may acquire, according to the respective first identification information, a transmission time at which the response device sends the first FTM measurement frame and the
  • the second communication device may acquire the measurement parameter according to the second identification information of the second communication device to perform the FTM.
  • the first identifier information and the second identifier information may each include a Media Access Control (MAC) address or an association identifier (AID).
  • the first identification information may be a MAC address of the first communication device or an AID of the first communication device; the second identification information may be a MAC address of the second communication or an AID of the first communication device.
  • the first FTM measurement frame may include feedback indication information
  • the second FTM measurement frame may also include feedback indication information, where the feedback indication information is used to indicate the each first communication.
  • the ordering of the first identifier information of each of the first communications devices corresponds to the order in which the first first signaling device receives the first NDP and sends the second NDP. Relationship; the second identification information of each second communication device in the second FTM measurement frame The ordering has a corresponding relationship with the order in which the second communication device receives the second FTM measurement frame and sends the response information.
  • the first FTM measurement frame includes feedback indication information, where the feedback indication information is used to indicate that each of the first communication devices receives feedback response information after receiving the first FTM measurement frame. Interval.
  • At least one of the first FTM request frame, the second FTM request frame, the first FTM measurement frame, and the second FTM measurement frame may include function indication information for indicating that the communication device supports multi-user measurement.
  • the function indication information may enable the responding device or the communication device to know whether the other party can perform a many-to-one measurement operation, avoiding the response device blindly transmitting the corresponding FTM measurement frame or the communication device blindly transmitting the FTM request frame.
  • the second FTM measurement frame further includes at least one of number information and message length information, where the number information is used to indicate a sum of the number of the first communication device and the second communication device, where the message length information is used by The time information and parameter information occupied by each of the first communication device and each of the second communication devices are indicated to be occupied.
  • the response device can replace the plurality of first FTM measurement frames by transmitting a first FTM measurement frame, and replace the plurality of second FTM measurement frames by transmitting a second FTM measurement frame, thereby reducing the interaction process and improving measurement efficiency while passing Interacting NDP to obtain corresponding time information can improve measurement accuracy and improve measurement accuracy.
  • the embodiment of the present application provides a communication device 500.
  • a terminal having a wifi function can be used as the measurement device 500, such as an intelligent terminal, an access point AP, and the like.
  • the communication device 500 can include:
  • the receiving module 510 is configured to receive a fine time measurement FTM request frame sent by at least two communication stations;
  • the sending module 520 is configured to send, according to the FTM request frame, a first FTM measurement frame, where the first FTM measurement frame includes measurement parameters of each of the at least two communication sites and an identifier used to indicate the each communication station Information such that each communication station acquires measurement parameters based on the identification information.
  • the first FTM measurement frame includes feedback indication information, where the feedback indication information is used for Indicates a time interval at which each communication station transmits response information after receiving the first FTM measurement frame.
  • the first FTM measurement frame includes feedback indication information, where the feedback indication information is used to indicate a time interval of feedback response information between each communication station after the first FTM measurement frame is received by each communication station. .
  • the receiving module 510 is further configured to receive the response information that is sent by each of the communication stations according to the first FTM measurement frame
  • the sending module 520 is further configured to send the second FTM measurement frame to the at least two communication sites.
  • the second FTM measurement frame includes a sending moment of the first FTM measurement frame sent by the communications device, a receiving moment of the response information sent by each communication station, and the identifier information, so that each communication station obtains a corresponding information according to the identifier information. Receive time.
  • the ordering of the identification information of each communication station has a corresponding relationship with the order in which each of the communication stations sends the response information after receiving the first FTM measurement frame.
  • the identifier information includes a media access control MAC address or an association identifier number AID.
  • At least one of the FTM request frame and the first FTM measurement frame may include function indication information for indicating that the communication station or the communication device supports multi-user measurement.
  • the first FTM measurement frame sent by the sending module 520 may further include at least one of number information and message length information, where the number information is used to indicate the number of the at least two communication sites, and the message length information is used by the message length information.
  • the length information used to indicate the time information and parameter information of each communication station or the message length information is used to indicate the length of time information or other information occupied by each communication device.
  • the communication device 500 may correspond to the execution body of the method in the embodiment of the present application, and the above and other operations and/or functions of the respective modules in the device 500 are respectively implemented in order to implement FIG. 2 to FIG. 7 .
  • the corresponding processes of each method in the following are not repeated here for brevity.
  • another embodiment of the present application provides a communication device 600, where the communication device includes:
  • the receiving module 610 is configured to receive a first FTM request frame sent by the at least one first communications device;
  • the sending module 620 is configured to send the first FTM measurement frame according to the first FTM request frame received by the receiving module;
  • the receiving module 610 is further configured to receive response information sent by each of the at least one first communications device according to the first FTM measurement frame, where the receiving module is further configured to receive at least one a second FTM request frame sent by the second communication device; the sending module is further configured to send a second FTM measurement frame, where the second FTM measurement frame includes first identifier information and a response for indicating each of the first communication devices Transmitting, by the device, a sending moment of the first FTM measurement frame, a receiving moment of the response information sent by each first communications device, a measurement parameter of each second communications device of the at least one second communications device, and indicating the each
  • the second identification information of the communication device is configured to enable each of the first communication devices to acquire a corresponding reception time according to the first identification information, and each of the second communication devices acquires the measurement parameter according to the second identification information.
  • the first FTM measurement frame includes the measurement parameter of the first communication device and the first identification information, so that the first communication device acquires the measurement parameter of the first communication device according to the first identification information.
  • the second FTM measurement frame includes feedback indication information, where the feedback indication information is used to indicate a time interval during which the second communication device sends the response information after receiving the second FTM measurement frame.
  • the ordering of the second identification information of each second communication device has a corresponding relationship with the order in which the second communication device sends the response information after receiving the second FTM measurement frame.
  • the first identifier information and the second identifier information both include a media access control MAC address or an association identifier number AID.
  • the second FTM measurement frame includes feedback indication information, where the feedback indication information is used to indicate that each second communication device receives a feedback response between each second communication device after receiving the first FTM measurement frame.
  • the time interval of the information is used to indicate that each second communication device receives a feedback response between each second communication device after receiving the first FTM measurement frame.
  • At least one of the FTM request frame, the first FTM measurement frame, and the second FTM measurement frame may include function indication information for indicating that the communication device supports multi-user measurement.
  • the second FTM measurement frame further includes at least one of number information and message length information, where the number information is used to indicate a sum of the number of the first communication device and the second communication device, where the message length information is used.
  • the length information used to indicate the time information and parameter information of each communication device or the message length information is used to indicate the length of time or other information occupied by each communication device.
  • the communication device 600 may correspond to the execution body of the method in the embodiment of the present application, and the above and other operations and/or functions of the respective modules in the device 600 are respectively implemented in order to implement FIG. 2 to FIG. 7 .
  • the corresponding processes of each method in the following are not repeated here for brevity.
  • another embodiment of the present application provides a communication device 700, where the communication device 700 includes:
  • a sending module 710 configured to send a fine time measurement FTM request frame to the responding device
  • the receiving module 720 is configured to receive a first FTM measurement frame that is sent by the responding device according to the FTM request frame, where the first FTM measurement frame includes measurement parameters of each of the at least two devices, and is used to indicate the each device. Identification information;
  • the obtaining module 730 is configured to acquire, according to the identifier information, measurement parameters of the communication device of the at least two devices.
  • the first FTM measurement frame includes feedback indication information, where the feedback indication information is used to indicate a time interval during which the communication device sends the response information after receiving the first FTM measurement frame.
  • the sending module 710 is further configured to send response information to the responding device according to the first FTM measurement frame received by the receiving module, where the receiving module is further configured to receive a second FTM measurement frame sent by the responding device, where the The second FTM measurement frame includes a sending moment of the first FTM measurement frame sent by the responding device, a receiving moment of the response device receiving the response information of each device, and the identifier information;
  • the obtaining module 730 is further configured to acquire, according to the identifier information, a receiving moment corresponding to the communications device.
  • the identification information of the communication device is in the order of the identification information of the at least two devices, and the communication device sends the response information after receiving the first FTM measurement frame, where the at least two devices receive the first The order in which the response information is sent after the FTM measurement frame has a corresponding relationship.
  • the identifier information includes a media access control MAC address or an association identifier number AID.
  • the first FTM measurement frame includes feedback indication information, where the feedback indication information is used to indicate a time interval between each device that feeds back the response information after receiving the first FTM measurement frame.
  • the FTM request frame and the first FTM measurement frame include function indication information for indicating that the communication device supports multi-user measurement.
  • the first FTM measurement frame further includes at least one of number information and message length information, where the number information is used to indicate the quantity of the at least two devices, where the message length information is used to indicate the time of each device.
  • the length occupied by the information and parameter information or the message length information is used to indicate the length of time or other information occupied by each device.
  • the communication device 700 may correspond to the execution body of the method in the embodiment of the present application, and the above and other operations and/or functions of the respective modules in the device 700 are respectively implemented in order to implement FIG. 2 to FIG. 7 .
  • the corresponding processes of each method in the following are not repeated here for brevity.
  • a communication device 800 As shown in FIG. 11, in another embodiment of the present application, a communication device 800 is provided.
  • the measurement device 800 includes:
  • the sending module 810 is configured to send, to the responding device, a first fine time measurement FTM request frame
  • the receiving module 820 is configured to receive a first FTM measurement frame that is sent by the responding device according to the first FTM request frame.
  • the sending module 810 is further configured to send response information to the response device, where the receiving module is further configured to receive a second FTM measurement frame sent by the response device, where the second FTM measurement frame includes first identifier information used to indicate the communication device. Transmitting, by the responding device, a sending moment of the first FTM measurement frame, a receiving moment of the response device receiving the response information of the communications device, a measurement parameter of each of the at least one first communications device, and indicating the Second identification information of each first communication device;
  • the obtaining module 830 is configured to acquire, according to the first identifier information, a receiving moment corresponding to the communications device.
  • the first FTM measurement frame includes the measurement parameter of the communication device and the first identifier information; the acquiring module is further configured to acquire the measurement parameter of the communication device according to the first identifier information.
  • the second FTM measurement frame includes feedback indication information, where the feedback indication information is used to indicate a time interval in which each of the first communications devices sends the response information after receiving the second FTM measurement frame.
  • the ordering of the second identification information of each of the first communication devices has a corresponding relationship with the order in which the first communication device sends the response information after receiving the second FTM measurement.
  • the first identification information and the second identification information comprise a media access control MAC address or an associated identification number AID.
  • At least one of the first FTM request frame, the second FTM request frame, the first FTM measurement frame, and the second FTM measurement frame includes function indication information for indicating that the communication device supports multi-user measurement.
  • the second FTM measurement frame further includes at least one of number information and message length information, where the number information is used to indicate a sum of the number of the communication device and the first communication device, the message length information is used to indicate The length of time occupied by the communication device and the respective first communication device and the length of the parameter information.
  • the communication device 800 may correspond to the execution subject of the method in the embodiment of the present application, and the above and other operations and/or functions of the respective modules in the device 800 are divided into In order to implement the corresponding processes of the respective methods in FIG. 2 to FIG. 7 , for brevity, details are not described herein again.
  • FIG. 12 shows a communication device of an embodiment of the present application, which includes a transceiver 910, a processor 920, a memory 930, and a bus system 940.
  • the transceiver 910, the processor 920, and the memory 930 may be connected by a bus system 940, which may be used to store instructions for executing the memory stored instructions to control the transceiver 910 to receive or transmit information. ;
  • the transceiver 910 is configured to receive a fine time measurement FTM request frame sent by at least two communication stations, and configured to send a first FTM measurement frame according to the FTM request frame, where the first FTM measurement frame includes each of the at least two communication sites Measurement parameters of the communication stations and identification information for indicating each communication station, so that each communication station acquires measurement parameters of each communication station according to the identification information.
  • the first FTM measurement frame includes feedback indication information, where the feedback indication information is used to indicate a time interval at which each communication station sends response information after receiving the first FTM measurement frame.
  • the transceiver 910 is further configured to receive response information that is sent by each of the communication stations according to the first FTM measurement frame, where the transceiver 910 is further configured to send the second FTM measurement frame to the at least two communication sites.
  • the second FTM measurement frame includes a sending moment of the first FTM measurement frame sent by the communications device, a receiving moment of the response information sent by each communication station, and the identifier information, so that each communication station obtains a corresponding information according to the identifier information. Receive time.
  • the ordering of the identification information of each communication station has a corresponding relationship with the order in which each of the communication stations sends the response information after receiving the first FTM measurement frame.
  • the identifier information includes a media access control MAC address or an association identifier number AID.
  • the processor 920 may be a central processing unit (“CPU"), and the processor 920 may also be other general-purpose processors, digital signal processors (DSPs). , an application specific integrated circuit (ASIC), an off-the-shelf programmable gate array (FPGA) or other programmable logic device, discrete gate or transistor logic device, discrete hardware component, and the like.
  • the general purpose processor may be a microprocessor or the processor or any conventional processor or the like.
  • the memory 930 can include read only memory and random access memory and provides instructions and data to the processor 920. A portion of the memory 930 may also include a non-volatile random access memory. For example, the memory 930 can also store information of the device type.
  • the bus system 940 may include a power bus, a control bus, a status signal bus, and the like in addition to the data bus. However, for clarity of description, various buses are labeled as bus system 940 in the figure.
  • each step of the foregoing method may be completed by an integrated logic circuit of hardware in the processor 920 or an instruction in a form of software.
  • the steps of the method disclosed in the embodiments of the present application may be directly implemented as a hardware processor, or may be performed by a combination of hardware and software modules in the processor.
  • the software module can be located in a conventional storage medium such as random access memory, flash memory, read only memory, programmable read only memory or electrically erasable programmable memory, registers, and the like.
  • the storage medium is located in memory 930, and processor 920 reads the information in memory 930 and, in conjunction with its hardware, performs the steps of the above method. To avoid repetition, it will not be described in detail here.
  • the communication device 900 may correspond to the execution body of the method in the embodiment of the present application, and the above and other operations and/or functions of the respective modules in the device 900 are respectively implemented in order to implement FIG. 2 to FIG. 7 .
  • the corresponding processes of each method in the following are not repeated here for brevity.
  • FIG. 13 shows a communication device of an embodiment of the present application, which includes a transceiver 1010, a processor 1020, a memory 1030, and a bus system 1040.
  • the transceiver 1010, the processor 1020, and the memory 1030 may be connected by a bus system 1040, which may be used to store instructions for executing the memory stored instructions to control the transceiver 1010 to receive or transmit information. ;
  • the transceiver 1010 is configured to receive a first fine time measurement FTM request frame sent by the at least one first communication device, send a first FTM measurement frame according to the first FTM request frame, and receive each of the at least one first communication device a communication device according to the first FTM measurement frame to send response information; receiving at least one second FTM request frame sent by the second communication device; transmitting a second FTM measurement frame, the second FTM measurement frame including First identification information of the first communication device, a transmission time of the first FTM measurement frame, a reception time of the response information sent by each of the first communication devices according to the first FTM measurement frame, and each of the at least one second communication device Measurement parameters of the second communication device and second identification information for indicating each of the second communication devices, so that each of the first communication devices acquires a corresponding reception time according to the first identification information, each of the first The second communication device acquires the measurement parameter according to the second identification information.
  • the first FTM measurement frame includes the measurement parameter of each of the first communication devices and the first identification information, so that each of the first communication devices acquires each of the first identification information according to the first identification information.
  • a measurement parameter of a communication device is a measurement parameter of a communication device.
  • the second FTM measurement frame includes feedback indication information, where the feedback indication information is used to indicate a time interval during which the second communication device sends the response information after receiving the second FTM measurement frame.
  • the ordering of the second identification information of each second communication device has a corresponding relationship with the order in which the second communication device sends the response information after receiving the second FTM measurement frame.
  • the first identifier information and the second identifier information both include a media access control MAC address or an association identifier number AID.
  • the processor 1020 may be a central processing unit (“CPU"), and the processor 1020 may also be other general-purpose processors, digital signal processors (DSPs). , an application specific integrated circuit (ASIC), an off-the-shelf programmable gate array (FPGA) or other programmable logic device, discrete gate or transistor logic device, discrete hardware component, and the like.
  • the general purpose processor may be a microprocessor or the processor or any conventional processor or the like.
  • the memory 1030 can include read only memory and random access memory and provides instructions and data to the processor 1020.
  • a portion of the memory 1030 can also include a non-volatile random access memory.
  • the memory 1030 can also store information of the device type.
  • the bus system 1040 may include a power bus, a control bus, a status signal bus, and the like in addition to the data bus. However, for clarity of description, various buses are labeled as bus system 1040 in the figure.
  • each step of the above method may be completed by an integrated logic circuit of hardware in the processor 1020 or an instruction in a form of software.
  • the steps of the method disclosed in the embodiments of the present application may be directly implemented as a hardware processor, or may be performed by a combination of hardware and software modules in the processor.
  • the software module can be located in a conventional storage medium such as random access memory, flash memory, read only memory, programmable read only memory or electrically erasable programmable memory, registers, and the like.
  • the storage medium is located in the memory 1030, and the processor 1020 reads the information in the memory 1030 and combines the hardware to perform the steps of the above method. To avoid repetition, it will not be described in detail here.
  • the communication device 1000 may correspond to the execution body of the method in the embodiment of the present application, and the above and other operations and/or functions of the respective modules in the device 1000 are respectively implemented in order to implement FIG. 2 to FIG. 7 .
  • the corresponding processes of each method in the following are not repeated here for brevity.
  • FIG. 14 shows a communication device of an embodiment of the present application, the communication device including a transceiver 1110, Processor 1120, memory 1130, and bus system 1140.
  • the transceiver 1110, the processor 1120, and the memory 1130 may be connected by a bus system 1140, which may be used to store instructions for executing the memory stored instructions to control the transceiver 1110 to receive or transmit information. ;
  • the transceiver 1110 is configured to send a fine time measurement FTM request frame to the response device, and receive a first FTM measurement frame sent by the response device according to the FTM request frame, where the first FTM measurement frame includes each of the at least two devices. Measuring parameters and identification information for indicating each device;
  • the processor 1130 is configured to obtain, according to the identifier information, a measurement parameter of the communication device, where the communication device is one of the at least two devices.
  • the first FTM measurement frame received by the transceiver 1120 includes feedback indication information, where the feedback indication information is used to indicate a time interval during which the communication device sends the response information after receiving the first FTM measurement frame.
  • the receiver 1110 is further configured to send response information to the responding device according to the first FTM measurement frame, and receive a second FTM measurement frame sent by the responding device, where the second FTM measurement frame includes the a sending time of the FTM measurement frame, a receiving moment of the response device receiving the response information of each device, and the identification information;
  • the processor 1130 is further configured to acquire, according to the identifier information, a receiving moment corresponding to the communications device.
  • the identification information of the communication device is in the order of the identification information of the at least two devices, and the communication device sends the response information after receiving the first FTM measurement frame, where the at least two devices receive the first The order in which the response information is sent after the FTM measurement frame has a corresponding relationship.
  • the identifier information includes a media access control MAC address or an association identifier number AID.
  • the processor 1120 may be a central processing unit (“CPU"), and the processor 1120 may also be other general-purpose processors, digital signal processors (DSPs). , an application specific integrated circuit (ASIC), an off-the-shelf programmable gate array (FPGA) or other programmable logic device, discrete gate or transistor logic device, discrete hardware component, and the like.
  • the general purpose processor may be a microprocessor or the processor or any conventional processor or the like.
  • the memory 1130 can include read only memory and random access memory and provides instructions and data to the processor 1120. A portion of the memory 1130 may also include a non-volatile random access memory. For example, the memory 1130 can also store information of the device type.
  • the bus system 1140 can include a power bus and control in addition to the data bus. Line and status signal bus, etc. However, for clarity of description, various buses are labeled as bus system 1140 in the figure.
  • each step of the foregoing method may be completed by an integrated logic circuit of hardware in the processor 1120 or an instruction in a form of software.
  • the steps of the method disclosed in the embodiments of the present application may be directly implemented as a hardware processor, or may be performed by a combination of hardware and software modules in the processor.
  • the software module can be located in a conventional storage medium such as random access memory, flash memory, read only memory, programmable read only memory or electrically erasable programmable memory, registers, and the like.
  • the storage medium is located in the memory 1130, and the processor 1120 reads the information in the memory 1130 and completes the steps of the above method in combination with its hardware. To avoid repetition, it will not be described in detail here.
  • the communication device 1100 may correspond to the execution body of the method in the embodiment of the present application, and the above and other operations and/or functions of the respective modules in the device 1100 are respectively implemented in order to implement FIG. 2 to FIG. 7 .
  • the corresponding processes of each method in the following are not repeated here for brevity.
  • FIG. 15 shows a communication device of an embodiment of the present application, which includes a transceiver 1210, a processor 1220, a memory 1230, and a bus system 1240.
  • the transceiver 1210, the processor 1220 and the memory 1230 may be connected by a bus system 1240, which may be used to store instructions for executing the memory stored instructions to control the transceiver 1210 to receive or transmit information. ;
  • the transceiver 1210 is configured to send a first fine time measurement FTM request frame to the response device, receive a first FTM measurement frame sent by the response device according to the first FTM request frame, send response information to the response device, and receive the response device to send a second FTM measurement frame, the second FTM measurement frame includes first identification information indicating the communication device, a transmission time of the response device to send the first FTM measurement frame, and response information of the response device receiving the communication device Receiving time, measurement parameters of each of the at least one first communication device, and second identification information for indicating each of the first communication devices;
  • the processor 1230 is configured to acquire, according to the first identifier information, a receiving moment corresponding to the communications device.
  • the first FTM measurement frame includes the measurement parameter of the first communication device and the first identification information; the processor 1230 is further configured to acquire the measurement parameter of the communication device according to the first identification information.
  • the second FTM measurement frame includes feedback indication information, where the feedback indication information is used for Indicates a time interval at which each of the first communication devices transmits response information after receiving the second FTM measurement frame.
  • the ordering of the second identification information of each of the first communication devices has a corresponding relationship with the order in which the first communication device sends the response information after receiving the second FTM measurement.
  • the first identification information and the second identification information comprise a media access control MAC address or an associated identification number AID.
  • the processor 1220 may be a central processing unit (“CPU"), and the processor 1220 may also be other general-purpose processors, digital signal processors (DSPs). , an application specific integrated circuit (ASIC), an off-the-shelf programmable gate array (FPGA) or other programmable logic device, discrete gate or transistor logic device, discrete hardware component, and the like.
  • the general purpose processor may be a microprocessor or the processor or any conventional processor or the like.
  • the memory 1230 can include read only memory and random access memory and provides instructions and data to the processor 1220. A portion of the memory 1230 can also include a non-volatile random access memory. For example, the memory 1230 can also store information of the device type.
  • the bus system 1240 may include a power bus, a control bus, a status signal bus, and the like in addition to the data bus. However, for clarity of description, various buses are labeled as bus system 1240 in the figure.
  • each step of the above method may be completed by an integrated logic circuit of hardware in the processor 1220 or an instruction in the form of software.
  • the steps of the method disclosed in the embodiments of the present application may be directly implemented as a hardware processor, or may be performed by a combination of hardware and software modules in the processor.
  • the software module can be located in a conventional storage medium such as random access memory, flash memory, read only memory, programmable read only memory or electrically erasable programmable memory, registers, and the like.
  • the storage medium is located in memory 1230, and processor 1220 reads the information in memory 1230 and, in conjunction with its hardware, performs the steps of the above method. To avoid repetition, it will not be described in detail here.
  • the communication device 1200 may correspond to the execution body of the method in the embodiment of the present application, and the above and other operations and/or functions of the respective modules in the device 1200 are respectively implemented in order to implement FIG. 2 to FIG. 7 .
  • the corresponding processes of each method in the following are not repeated here for brevity.
  • the size of the serial numbers of the above processes does not mean The order of execution, the order of execution of each process should be determined by its function and internal logic, and should not be construed as limiting the implementation process of the embodiments of the present application.
  • the disclosed systems, devices, and methods may be implemented in other manners.
  • the device embodiments described above are merely illustrative.
  • the division of the unit is only a logical function division.
  • there may be another division manner for example, multiple units or components may be combined or may be Integrate into another system, or some features can be ignored or not executed.
  • the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, or an electrical, mechanical or other form of connection.
  • the units described as separate components may or may not be physically separated, and the 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 objectives of the embodiments of the present application.
  • each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.
  • the above integrated unit can be implemented in the form of hardware or in the form of a software functional unit.

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Abstract

一种精细时间测量FTM方法和通信设备，该方法包括：接收至少两个通信设备发送的FTM请求帧；根据该FTM请求帧发送第一FTM测量帧，该第一FTM测量帧包括该至少两个通信设备中每个通信设备的测量参数和用于指示该每个通信设备的标识信息，以使该每个通信设备根据该标识信息获取测量参数。以广播的形式发送FTM测量帧取代现有技术中发送多个FTM测量帧，不但可以减少响应设备和多个通信设备在FTM测量时的交互次数，并且可以对多个通信设备进行同时测量，从而缩短测量时间，提高测量效率。

Description

一种精细时间测量FTM方法和通信设备
本申请要求于2015年12月29日提交中国专利局、申请号为201511017027.2、发明名称为“一种精细时间测量FTM方法和通信设备”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。
技术领域
本申请涉及通信领域，尤其涉及一种基于时间的测量方法，精细时间测量FTM方法，以及应用该方法的通信设备。
背景技术
精细时间测量FTM(fine timing measurement)被应用于现代科学技术的诸多领域，例如通信定位、测距等。为了避免非精确同步导致的测量误差，现有FTM测量采用的是一对一测量信息飞行时间的方法进行测量。采用该测量方法的通信设备和响应设备需要进行多次信息交互，从而获知通信设备和响应设备之间的距离。
发明内容
当多个通信设备同时相对于一个响应设备进行测距时，采用现有FTM提供的方法，该响应设备需要分别与当前通信设备完成相应的多次信息交互，导致测量耗时长和测量效率。本申请实施例提供了一种精细时间测量FTM新的流程，通过以广播的形式一对多发送FTM测量帧取代现有技术中一对一发送多个FTM测量帧，不但可以减少响应设备和多个通信设备在FTM测量时的交互次数，并且可以对多个通信设备进行同时测量，缩短测量时长，提高测量效率。
一方面，提供了一种精细时间测量FTM方法，该方法包括：接收至少两个通信设备发送的FTM请求帧；根据该FTM请求帧发送第一FTM测量帧，该第一FTM测量帧包括该至少两个通信设备中每个通信设备的测量参数和用于指示该每个通信设备的标识信息，以使该每个通信设备根据该标识信息获取该每个通信设备的测量参数。
在对多个通信设备进行FTM测量时，多个通信设备可以通过接收同一 个第一FTM测量帧获知自己对应的测量参数进行FTM测量。响应设备可以通过广播的形式一对多发送第一FTM测量帧取代现有技术中一对一发送多个第一FTM测量帧，不但可以减少交互的过程，节省信道资源，同时多个通信设备可以同时进行FTM测量，可以缩短测量时间提高测量效率。应理解，具有Wi-Fi功能的终端或者接入点等都可以成为通信设备或者响应设备。
在第一方面可能的实现方式中，该第一FTM测量帧包括反馈指示信息，该反馈指示信息用于指示该每个通信设备在接收到该第一FTM测量帧后发送响应信息的时间间隔。
多个通信设备可以根据反馈指示信息依次向响应设备发送响应信息，可以避免响应信息冲突导致的发送失败，根据指示可以准确、高效的向响应设备反馈响应信息，提高了测量效率。
在第一方面可能的实现方式中，该测量方法还可以包括：接收每个通信设备根据该第一FTM测量帧发送的响应信息；发送第二FTM测量帧，该第二FTM测量帧包括该第一FTM测量帧的发送时刻、每个通信设备发送的响应信息的接收时刻和该标识信息，以使该每个通信设备根据该标识信息获取对应的接收时刻。
响应设备不但可以通过以一对多的形式发送第一FTM测量帧代替一对一发送多个第一FTM测量帧，同时可以通过以一对多的形式发送一个第二FTM测量帧代替一对一发送多个第二FTM测量帧，不但可以使多个通信设备同时进行FTM测量，还进一步减少了交互过程提高了测量效率。
在第一方面可能的实现方式中，该每个通信设备的标识信息的排序与该每个通信设备在接收到该第一FTM测量帧后反馈响应信息的排序具有对应关系。
该标识信息不但用于指示该多个通信设备获取自身对应的测量参数，同时标识信息的排序还可以指示多个通信设备中每个通信设备反馈响应信息的排序，使得该通信设备接收到该标识信息后获知自己反馈响应信息的顺序从而可以避免冲突引起的信息传输失败，提高了测量效率。
在第一方面可能的实现方式中，该标识信息包括媒体访问控制MAC地址或关联标识号AID。
在第一方面可能的实现方式中，该第一FTM测量帧包括反馈指示信息，该反馈指示信息用于指示该每个通信设备接收到该第一FTM测量帧后，该 每个通信设备之间反馈响应信息的时间间隔。
多个通信设备可以根据反馈指示信息的指示在一定的时间间隔，依次向响应设备发送响应信息，可以避免通信冲突导致的信息传输失败，同时可以准确、高效的向响应设备反馈响应信息，提高了测量效率。
在第一方面可能的实现方式中，该至少两个通信设备在接收到第一FTM测量帧后经过一个短帧间隔SIFS发送第一个响应信息。
在第一方面可能的实现方式中，该测量方法还可以包括：在发送第一FTM测量帧后，发送第一非数据包NDP；接收该每个通信设备反馈的第二NDP，发送第二FTM测量帧，该第二FTM测量帧包括发送该第一NDP的发送时刻、每个通信设备发送的第二NDP的接收时刻和该标识信息，以使该每个通信设备根据该标识信息获取该发送时刻和对应的接收时刻。
通过交互NDP来获取对应的时间信息可以提升测量精度，进而提高测量的准确率。
在第一方面可能的实现方式中，该FTM请求帧和该第一FTM测量帧中的至少一种包括用于指示通信设备支持多用户测量的功能指示信息。
该功能指示信息可以使响应设备或通信设备获知对方是否可以进行多对一测量操作，避免了响应设备盲目发送该第一FTM测量帧或该通信设备盲目发送FTM请求帧。
在第一方面可能的实现方式中，该第一FTM测量帧还包括数目信息和消息长度信息中的至少一种。其中，该数目信息用于指示该至少两个通信设备的数量，该消息长度信息用于指示每个通信设备的时间信息和参数信息占用的长度，或该消息长度信息用于指示每个通信设备的时间信息或其他信息占用的长度。
该数目信息可以使该每个通信设备获知该至少两个通信设备的具体数目，以便于该每个通信设备可以根据该数目结合自身的发送顺序和时间间隔等因素估算自己进行FTM测量的时间，使每个通信设备可以估计测量等待时间。消息长度信息可以使每个通信设备更快速的找到自己的测量参数、标识信息或其他信息，提高测量效率。
第二方面，提供了一种精细时间测量FTM方法，该方法包括：接收至少一个第一通信设备发送的第一FTM请求帧；根据该第一FTM请求帧发送第一FTM测量帧；接收该至少一个第一通信设备中每个第一通信设备根据 该第一FTM测量帧发送的响应信息；接收至少一个第二通信设备发送的第二FTM请求帧；发送第二FTM测量帧，该第二FTM测量帧包括用于指示该每个第一通信设备的第一标识信息、该第一FTM测量帧的发送时刻、每个第一通信设备的响应信息的接收时刻、该至少一个第二通信设备中每个第二通信设备的测量参数和用于指示该每个第二通信设备的第二标识信息，以使该每个第一通信设备根据该第一标识信息获取对应的接收时刻，该每个第二通信设备根据该第二标识信息获取该每个第二通信设备的测量参数。
通过接收该第二FTM测量帧可以使该第一通信设备获知自己对应的接收时刻，同时还可以使该第二通信设备获知自己对应的测量参数。响应设备以一对多的形式发送一个第二FTM测量帧就可以使第一通信设备和第二通信设备获取各自需要的信息，无需向现有技术一样需要一对一发送多个FTM测量帧。不但可以减少交互的过程节省信道资源，同时多个通信设备可以同时进行FTM测量减少测量时间提高测量效率。
在第二方面可能的实现方式中，该第一FTM测量帧包括该每个第一通信设备的测量参数和该第一标识信息，以使该每个第一通信设备根据该第一标识信息获取该每个第一通信设备的测量参数。
在对多个通信设备进行FTM测量时，多个通信设备可以通过接收同一个第一FTM测量帧并根据第一标识信息获知自己对应的测量参数进行FTM。采用该方法可以减少交互次数，同时多个通信设备可以同时进行FTM可以进一步减少测量时间提高测量效率。
在第二方面可能的实现方式中，该第二FTM测量帧包括反馈指示信息，该反馈指示信息用于指示该每个第二通信设备在接收到该第二FTM测量帧后发送响应信息的时间间隔。
该至少每个第二通信设备可以根据反馈指示信息依次向响应设备发送响应信息，不但可以避免传输冲突导致的传输失败，同时根据该指示可以准确、高效的向响应设备反馈响应信息，提高了测量效率。
在第二方面可能的实现方式中，该每个第二通信设备的第二标识信息的排序与该每个第二通信设备在接收到该第二FTM测量帧后发送响应信息的排序具有对应关系。
该第二标识信息不但用于指示该第二通信设备获取自身对应的测量参数，同时第二标识信息的排序还可以指示该每个第二通信设备发送响应信息 的先后顺序，使得该每个第二通信设备接收到该标识信息后获知自己发送响应信息的先后顺序从而避免了避免传输冲突导致的信息传输失败，提高了测量效率。
在第二方面可能的实现方式中，该第一标识信息和第二标识信息均包括媒体访问控制MAC地址或关联标识号AID。
在第二方面可能的实现方式中，该第二FTM测量帧包括反馈指示信息，该反馈指示信息用于指示该每个第二通信设备接收到该第二FTM测量帧后，该每个第二通信设备之间发送响应信息的时间间隔。
多个第二通信设备可以根据反馈指示信息的指示在一定的时间间隔，依次向响应设备发送响应信息，可以避免传输冲突导致的信息传输失败，同时可以准确、高效的向响应设备反馈响应信息，提高了测量效率。
在第二方面可能的实现方式中，该至少两个第二通信设备在接收到第一FTM测量帧后经过一个短帧间隔SIFS反馈第一个响应信息。
在第二方面可能的实现方式中，该方法还可以包括：接收至少一个第一通信设备发送的第一FTM请求帧；根据该第一FTM请求帧发送第一FTM测量帧；在发送第一FTM测量帧后，发送第一非数据包NDP；接收该至少一个第一通信设备中每个第一通信设备发送的第二NDP；接收至少一个第二通信设备发送的第二FTM请求帧；发送第二FTM测量帧，该第二FTM测量帧包括用于指示该每个第一通信设备的第一标识信息、发送第一NDP的发送时刻、接收该每个第一通信设备的第二NDP的接收时刻、该至少一个第二通信设备中每个第二通信设备的测量参数和用于指示该每个第二通信设备的第二标识信息。
通过接收该第二FTM测量帧可以使该第一通信设备获知自己对应的时间信息，同时还可以使该第二通信设备获知自己对应的测量参数。响应设备发送一个第二FTM测量帧就可以使第一通信设备和第二通信设备获取各自需要的信息，无需向现有技术一样需要发送多个FTM测量帧。采用该测量方法不但可以减少交互的过程提高测量效率，同时通过交互NDP来获取对应的时间信息可以提升测量精度。
在第二方面可能的实现方式中，该方法还包括：在发送第二FTM测量帧后，发送第三非数据包NDP；接收该每个第二通信设备发送的第四NDP；发送第三FTM测量帧，该第三FTM测量帧承载该发送该第三NDP的发送 时刻、接收该每个第二通信设备的第四NDP的接收时刻和该第二标识信息。
响应设备在发送完第三FTM测量帧后向第二通信设备发送第三NDP，通过交互NDP来获取对应的时间信息可以提升测量精度，进而提高测量的准确率。
在第二方面可能的实现方式中，该第一FTM请求帧、第二FTM请求帧、第一FTM测量帧和该第二FTM测量帧中的至少一种可以包括用于指示通信设备支持多用户测量的功能指示信息。
该功能指示信息可以使响应设备或通信设备获知对方是否可以进行多对一测量操作，避免了响应设备盲目发送该FTM测量帧该或该通信设备盲目发送FTM请求帧。
在第二方面可能的实现方式中，该第二FTM测量帧还包括数目信息和消息长度信息中的至少一种，该数目信息用于指示该第一通信设备和该第二通信设备的数目之和，该消息长度信息用于指示该每个第一通信设备和该每个第二通信设备的时间信息和参数信息占用的长度，或该消息长度信息用于指示每个第二通信设备的时间信息或其他信息占用的长度。
该数目信息可以使该第一通信设备和第二信设备获知参与多用户测量的通信设备的具体数目，以使每个第二通信设备可以根据该数目信息、自身的发送顺序或者时间间隔等因素估计自身进行FTM的时间。消息长度信息可以使第一通信设备和第二通信设备更快速的找到自己对应的标识信息和需要获取的信息。
第三方面，提供了一种精细时间测量FTM方法，该方法包括：第一通信设备向响应设备发送FTM请求帧；第一通信设备接收该响应设备根据该FTM请求帧发送的第一FTM测量帧，该第一FTM测量帧包括至少两个通信设备中每个通信设备的测量参数，该第一FTM测量帧还包括用于指示该每个通信设备的标识信息；第一通信设备根据该标识信息获取该至少两个通信设备中的第一通信设备的测量参数。
第一通信设备可以根据标识信息获取自己对应的测量参数从而进行FTM。使得第一通信设备可以和多个通信设备接收同一个第一FTM测量帧获得各自的测量参数。采用该方法可以减少了交互次数，缩短了测量时间提高了测量效率。
在第三方面可能的实现方式中，该第一FTM测量帧包括反馈指示信息， 该反馈指示信息用于指示该第一通信设备在接收到该第一FTM测量帧后发送响应信息的时间间隔。
该第一通信设备可以根据该反馈指示信息获取自己向响应设备发送响应信息的时刻，可以避免与其他通信设备发送响应信息时发生传输冲突导致的信息传输失败，提高了测量效率。
在第三方面可能的实现方式中，该测量方法还包括：第一通信设备根据该第一FTM测量帧向该响应设备发送响应信息；第一通信设备接收该响应设备发送的第二FTM测量帧，该第二FTM测量帧包括该响应设备发送第一FTM测量帧的发送时刻、该响应设备接收该每个通信设备的响应信息的接收时刻和该标识信息；第一通信设备根据该标识信息获取该第一通信设备对应的接收时刻。
该第一通信设备可以根据标识信息获取自己对应的接收时刻，以使第一通信设备可以和多个通信设备同时进行FTM测量提高了测量效率。
在第三方面可能的实现方式中，该第一通信设备的标识信息在该至少两个通信设备的标识信息的排序与该第一通信设备在接收到该第一FTM测量帧后发送响应信息在该至少两个通信设备接收到该第一FTM测量帧后发送响应信息的排序具有对应关系。
该标识信息不但可以使指示该第一通信设备获取自身对应的测量参数，同时该标识信息的排序还可以指示该第一通信设备发送响应信息的排序，使得该第一通信设备接收到该标识信息后获知自己发送响应信息的先后顺序从而避免了传输冲突导致的信息传输失败，提高了测量效率。
在第三方面可能的实现方式中，该标识信息包括媒体访问控制MAC地址或关联标识号AID。
在第三方面可能的实现方式中，该第一FTM测量帧包括反馈指示信息，该反馈指示信息用于指示该每个通信设备接收到该第一FTM测量帧后，该每个通信设备之间反馈响应信息的时间间隔。
第一通信设备可以根据反馈指示信息的指示在一定的时间间隔，向响应设备发送响应信息，可以避免传输冲突导致的信息传输失败，同时可以准确、高效的向响应设备反馈响应信息，提高了测量效率。
在第三方面可能的实现方式中，该方法还可以包括：第一通信设备接收第一FTM测量帧后，接收第一非数据包NDP；第一通信设备向响应设备发 送的第二NDP；接收第二FTM测量帧，该第二FTM测量帧包括该响应设备发送第一FTM测量帧的发送时刻和该响应设备接收该每个通信设备的第二NDP的接收时刻和该标识信息；第一通信设备根据该标识信息获取该第一通信设备对应的接收时刻。
通过交互NDP来获取对应的时间信息可以提升测量精度，进而提高测量的准确率。
在第三方面可能的实现方式中，该FTM请求帧和该第一FTM测量帧中的至少一种包括用于指示通信设备支持多用户测量的功能指示信息。
该功能指示信息可以使响应设备或通信设备获知对方是否可以进行多对一测量操作，避免了响应设备盲目发送该第一FTM测量帧或该通信设备盲目发送FTM请求帧。
在第三方面可能的实现方式中，该第一FTM测量帧还包括数目信息和消息长度信息中的至少一种，该数目信息用于指示该至少两个通信设备的数目，该消息长度信息用于指示该每个通信设备的时间信息和参数信息占用的长度。
该数目信息可以使该第一通信设备获知该至少两个通信设备的具体数量，以使该第一通信设备可以根据该数目并结合自身的发送顺序或者时间间隔等因素估计测量等待的时间，避免了通信设备盲目发送响应信息或参与FTM。消息长度信息可以使第一通信设备更快速的找到自己的测量参数，提高测量效率。
第四方面，提供了一种精细时间测量FTM方法，该方法包括：第一通信设备向响应设备发送第一FTM请求帧；第一通信设备接收该响应设备根据该第一FTM请求帧发送第一FTM测量帧；第一通信设备向响应设备发送响应信息；第一通信设备接收该响应设备发送的第二FTM测量帧，该第二FTM测量帧包括用于指示第一通信设备的第一标识信息、该响应设备发送该第一FTM测量帧的发送时刻、该响应设备接收该第一通信设备的响应信息的接收时刻、至少一个第二通信设备中每个第二通信设备的测量参数和用于指示该每个第二通信设备的第二标识信息；该第一通信设备根据该第一标识信息获取该第一通信设备对应的接收时刻。
该第一通信设备可以根据第一标识信息获取对应的接收时刻，同时该第一通信设备可以和多个通信设备同时进行FTM测量提高了测量效率。
在第四方面可能的实现方式中，该第一FTM测量帧包括该第一通信设备的测量参数和该第一标识信息，该方法还包括：该第一通信设备根据该第一标识信息获取该第一通信设备的测量参数。
对多个通信设备进行FTM时，第一通信设备可以通过第一标识信息获知自己对应的测量参数进行FTM测量。不但可以减少交互的过程节省信道资源，同时该第一通信设备可以和多个通信设备同时进行FTM测量提高了测量效率。
在第四方面可能的实现方式中，该方法还可以包括：该第二FTM测量帧包括反馈指示信息，该反馈指示信息用于指示该每个第二通信设备在接收到该第二FTM测量帧后发送响应信息的时间间隔。
该每个第二通信设备可以根据反馈指示信息确定自己向响应设备发送响应信息的时刻，可以避免与其他通信设备发送响应信息时发生传输冲突导致的信息传输失败，提高了测量效率。
在第四方面可能的实现方式中，该每个第二通信设备的第二标识信息的排序与该每个第二通信设备在接收到该第二FTM测量后发送响应信息的排序具有对应关系。
在第四方面可能的实现方式中，该第一标识信息和第二标识信息均包括媒体访问控制MAC地址或关联标识号AID。
在第四方面可能的实现方式中，该第二FTM测量帧包括反馈指示信息，该反馈指示信息用于指示该每个第二通信设备接收到该第二FTM测量帧后，该每个第二通信设备之间发送响应信息的时间间隔。
多个第二通信设备可以根据反馈指示信息的指示在一定的时间间隔，依次向响应设备发送响应信息，可以避免传输冲突导致的信息传输失败，同时可以准确、高效的向响应设备发送响应信息，提高了测量效率。
在第四方面可能的实现方式中，该至少两个第二通信设备在接收到该第二FTM测量帧后经过一个短帧间隔SIFS反馈第一个响应信息。
在第四方面可能的实现方式中，该测量方法还可以包括：向响应设备发送FTM请求帧；接收响应设备发送的第一FTM测量帧；接收响应设备发送的第一NDP数据包；向响应设备发送第二NDP；接收响应设备发送的第二FTM测量帧，该第二FTM测量帧包括用于指示第一通信设备的第一标识信息、该响应设备发送该第一NDP的发送时刻、该响应设备接收该第一通信 设备的第二NDP的接收时刻、至少一个第二通信设备中每个第二通信设备的测量参数和用于指示第二通信设备的第二标识信息；根据该第一标识信息获取该第一通信设备对应的接收时刻。
通过第二标识信息可以使该第一通信设备获知自己对应的时间信息。响应设备发送一个第二FTM测量帧就可以使第一通信设备和第二通信设备获取各自需要的信息，无需向现有技术一样需要发送多个FTM测量帧。采用该测量方法不但可以减少交互的过程提高测量效率，同时通过交互NDP来获取对应的时间信息可以提升测量精度。
在第四方面可能的实现方式中，该测量方法还包括：第二通信设备接收该响应设备发送的第二FTM测量帧后，第二通信设备接收该响应设备发送的第三NDP；第二通信设备向响应设备发送第四NDP；第二通信设备接收响应设备发送的第三FTM测量帧，该第三FTM测量帧包括该响应设备发送第三NDP的发送时刻、响应设备接收该第二通信设备的第四NDP的接收时刻和用于指示第二通信设备的第二标识信息；该第二通信设备根据该第二标识信息获取对应的接收时刻。
通过交互NDP来获取对应的时间信息可以提升测量精度，进而提高测量的准确率。
在第四方面可能的实现方式中，该第一FTM请求帧、第二FTM请求帧、第一FTM测量帧和第二FTM测量帧中的至少一种包括用于指示通信设备支持多用户测量的功能指示信息。
该功能指示信息可以使响应设备或通信设备获知对方是否可以进行多对一测量操作，避免了响应设备盲目发送该相应FTM测量帧或该通信设备盲目发送FTM请求帧。
在第四方面可能的实现方式中，该第二FTM测量帧还包括数目信息和消息长度信息中的至少一种，该数目信息用于指示该第一通信设备和第二通信设备的数目之和，该消息长度信息用于指示该每个第一通信设备和该每个第二通信设备的时间信息和参数信息占用的长度或该消息长度信息用于指示每个第一通信设备和每个第二通信设备的时间信息或其他信息占用的长度。
该数目信息可以使该第一通信设备和第二信设备获知参与多用户测量的通信设备的具体数目，以使每个第二通信设备可以根据该数目信息、自身 的发送顺序或者时间间隔等因素估计FTM测量时延，从而提高了测量效率。消息长度信息可以使第一通信设备和第二通信设备更快速的找到自己对应的标识信息和需要获取的信息。
第五方面，提供了一种通信设备，用于执行上述第一方面或第一方面的任意可能的实现方式中的方法。具体地，该通信设备包括用于执行上述第一方面或第一方面的任意可能的实现方式中的接收模块和发送模块。
第六方面，提供了一种通信设备，用于执行上述第二方面或第二方面的任意可能的实现方式中的方法。具体地，该通信设备包括用于执行上述第二方面或第二方面的任意可能的实现方式中的方法的接收模块和发送模块。
第七方面，提供了一种通信设备，用于执行上述第三方面或第三方面的任意可能的实现方式中的方法。具体地，该通信设备包括用于执行上述第三方面或第三方面的任意可能的实现方式中的方法的接收模块、发送模块和获取模块。
第八方面，提供了一种通信设备，用于执行上述第四方面或第四方面的任意可能的实现方式中的方法。具体地，该通信设备包括用于执行上述第四方面或第四方面的任意可能的实现方式中的方法的接收模块、发送模块和获取模块。
第九方面，提供一种通信设备，包括：收发器、存储器、处理器和总线系统。其中，该收发器、存储器和该处理器通过该总线系统相连，该存储器用于存储指令，该处理器用于执行该存储器存储的指令，该处理器还用于控制收发器接收和发送信息或信号，并且当该处理器执行该存储器存储的指令时，该执行使得该处理器执行第一方面或第一方面的任意可能的实现方式中的方法。
第十方面，提供一种通信设备，包括收发器、存储器、处理器和总线系统。其中，该收发器、存储器和该处理器通过该总线系统相连，该存储器用于存储指令，该处理器用于执行该存储器存储的指令，该处理器还用于控制收发器接收和发送信息或信号，并且当该处理器执行该存储器存储的指令时，该执行使得该处理器执行第二方面或第二方面的任意可能的实现方式中的方法。
第十一方面，提供一种通信设备，包括收发器、存储器、处理器和总线系统。其中，该收发器、存储器和该处理器通过该总线系统相连，该存储器 用于存储指令，该处理器用于执行该存储器存储的指令，该处理器还用于控制收发器接收和发送信息或信号，并且当该处理器执行该存储器存储的指令时，该执行使得该处理器执行第三方面或第三方面的任意可能的实现方式中的方法。
第十二方面，提供一种通信设备，包括收发器、存储器、处理器和总线系统。其中，该收发器、存储器和该处理器通过该总线系统相连，该存储器用于存储指令，该处理器用于执行该存储器存储的指令，该处理器还用于控制收发器接收和发送信息或信号，并且当该处理器执行该存储器存储的指令时，该执行使得该处理器执行第四方面或第四方面的任意可能的实现方式中的方法。
第十三方面，提供一种计算机可读介质，用于存储计算机程序，该计算机程序包括用于获取第一方面或第一方面的任意可能的实现方式中的方法的指令。
第十四方面，提供一种计算机可读介质，用于存储计算机程序，该计算机程序包括用于获取第二方面或第二方面的任意可能的实现方式中的方法的指令。
第十五方面，提供一种计算机可读介质，用于存储计算机程序，该计算机程序包括用于获取第三方面或第三方面的任意可能的实现方式中的方法的指令。
第十六方面，提供一种计算机可读介质，用于存储计算机程序，该计算机程序包括用于获取第四方面或第四方面的任意可能的实现方式中的方法的指令。
在本申请的实施中由测量参数域承载测量参数，测量参数域可以包括状态指示(Status Indication)用于指示请求成功或失败；值(Value)用于设定时间长度；保留(Reserved)；测量组数目(Number of bursts exponent)用于指示测量组的组数；持续时间(Burst Duration):延续的时间；FTM间隔时间(Min Delta FTM)用于指示两个连续FTM测量帧的时间间隔；分步计时(Partial TSF timer)用于指示响应设备接收到FTM请求后发送第一FTM测量帧的时间；功能指示(ASAP capable)用于指示是否能够获取第一个FTM测量帧的时间戳并且在后续FTM帧中反馈；ASAP用于指示是否希望尽快开始FTM测量；次数(FTMs per burst)用于指示一组测量中进行FTM测 量的次数；FTM格式和带宽(FTM format and bandwidth)用于指示FTM帧类型以及占用带宽(例如11n的类型，还是11ac的类型，20M还是40M还是80M)；测量组时段(Burst period)用于指示一个测量组(burst)的时长。
本申请的这些和其它方面在以下多个实施例的描述中会更加简明易懂。
附图说明
图1是根据本申请实施例的测量方法的应用场景示意图。
图2是根据本申请实施例的测量方法的一种示意性流程图。
图3是根据本申请实施例的测量方法的另一种示意性流程图。
图4是根据本申请实施例中FTM测量帧的行为域的示意性图。
图5是根据本申请实施例中FTM测量帧中测量参数域的示意性图。
图6是根据本申请另一实施例的测量方法的示意性流程图。
图7是根据本申请又一实施例的测量方法的示意性流程图。
图8是根据本申请实施例的通信设备的示意性结构框图。
图9是根据本申请另一实施例的通信设备的示意性结构框图。
图10是根据本申请又一实施例的通信设备的示意性结构框图。
图11是根据本申请再一实施例的通信设备的示意性结构框图。
图12是根据本申请再一实施例的通信设备的示意性结构框图。
图13是根据本申请再一实施例的通信设备的示意性结构框图。
图14是根据本申请再一实施例的通信设备的示意性结构框图。
图15是根据本申请再一实施例的通信设备的示意性结构框图。
具体实施方式
下面将结合本申请实施例中的附图，对本申请实施例中的技术方案进行清楚、完整地描述。
通信设备和响应设备，均可以经无线接入网(例如，RAN，Radio Access Network)与一个或多个核心网进行通信，通信设备和响应设备均可以是移动终端，如移动电话(或称为“蜂窝”电话)和具有移动终端的计算机，例如，可以是便携式、袖珍式、手持式、计算机内置的或者车载的通信装置，它们与无线接入网交换语言或数据，也可以同时交换语音和数据；通信设备和响应设备还可以是接入点AP(Access Point)或者是基站等设备。一般情况下， 具有Wi-Fi功能的终端都可以成为通信设备和响应设备。
在介绍本申请实施例之前，首先介绍一下本申请实施例的应用场景，本申请实施例可以应用于基于Wi-Fi技术的网络架构中，图1示出了根据本申请实施例的通信设备的定位方法的应用场景的示意图。在图1的应用场景中，可以是多个通信设备向同一个响应设备发送FTM请求。采用现有技术的方法，响应设备需要与每个通信设备进行多次交互，如果在密集场景例如机场、车站、医院等公共场所，通信设备需要花费更久的时间与响应设备进行FTM，该测量方法耗时长效率低。其中，响应设备不局限在中心控制节点例如AP或者站点设备STA(Station)。AP或STA在某段时间内可以作为响应设备，在某段时间也可以作为发送测量请求的通信设备。
图2示出了根据本申请实施例的测量方法200的示意性流程图，该测量方法200可以包括：
S210、至少两个通信设备向响应设备发送精细时间测量FTM请求帧；
S220、响应设备根据该FTM请求帧发送第一FTM测量帧，该第一FTM测量帧包括用于指示该至少两个通信设备中每个通信设备的测量参数和用于指示该每个通信设备的标识信息；
S230、该每个通信设备根据该标识信息获取对应的测量参数。
具体而言，至少两个通信设备可以向响应设备发送FTM请求帧，该响应设备接收到该至少两个通信设备发送的FTM请求帧后，该响应设备可以通过广播的形式向该至少两个通信设备发送第一FTM测量帧，该第一FTM测量帧包括该每个通信设备的测量参数和用于指示该每个通信设备的标识信息。可选地，该标识信息可以包括媒体访问控制MAC(Media Access Control)地址或关联标识号AID(Association Identity)。其中，该标识信息可以是该通信设备的MAC地址或该通信设备的AID。该每个通信设备接收到该第一FTM测量帧后，可以通过该标识信息获取其自身的测量参数，以使该每个通信设备可以根据获取的测量参数进行FTM测量。
以两个通信设备为例，该两个通信设备可以是第一通信设备和第二通信设备，该第一通信设备和第二通信设备分别向响应设备发送FTM请求帧，该响应设备接收到该两个FTM请求帧之后可以通过广播的形式向该两个通信设备发送第一FTM测量帧，该FTM测量帧包含第一通信设备的第一测量参数、第二通信设备的第二测量参数、用于指示第一通信设备的第一标识信 息和用于指示第二通信设备的第二标识信息。可选地，该第一标识信息可以是第一通信设备的MAC地址，该第二标识信息可以是第二通信设备的MAC地址。第一通信设备接收到该第一FTM测量帧后可以根据第一标识信息获取自己的第一测量参数，同理第二通信设备也可以根据该第二标识信息获取自己的第二测量参数。第一通信设备和第二通信设备可以通过接收同一个FTM测量帧获知各自的测量参数进行FTM测量。响应设备发送一个FTM测量帧就可以使两个通信设备获取各自需要的测量参数，无需向现有技术一样响应设备需要给第一通信设备和第二通信设备分别发送第一FTM测量帧。如果有多个通信设备进行测量，该多个通信设备可以通过接收同一个第一FTM测量帧同时获知自己的测量参数进行FTM，不但可以减少交互次数，同时多个通信设备同时测量可以提高测量效率。
从响应设备的角度，该执行主体可以是响应设备。该测量方法200可以表述为：接收至少两个通信设备发送的FTM请求帧；根据该FTM请求帧发送第一FTM测量帧，该第一FTM测量帧包括该至少两个通信设备中每个通信设备的测量参数和用于指示该每个通信设备的标识信息。
具体而言，该响应设备可以接收至少两个通信设备发送的FTM请求帧，并根据该FTM请求帧通过广播的形式向该至少两个通信设备发送第一FTM测量帧，该第一FTM测量帧可以包括该至少两个通信设备中每个通信设备的测量参数和用于指示该每个通信设备的标识信息。响应设备接收到多个FTM请求后可以通过广播的形式向多个通信设备发送第一FTM测量帧，不但可以减少交互次数同时实现了多个通信设备进行同时测量，可以缩短测量时长，提高测量效率。
从通信设备的角度，该执行主体可以为至少两个通信设备中的第一通信设备还可以是通信设备中的测量装置，还可以是控制通信设备的网络系统。以第一通信设备作执行主体为例，该测量方法200还可以表述为：第一通信设备向响应设备发送FTM请求帧；第一通信设备接收该响应设备根据该FTM请求帧发送的第一FTM测量帧，该第一FTM测量帧包括至少两个通信设备中每个通信设备的测量参数，该第一FTM测量帧还包括用于指示该每个通信设备的标识信息；第一通信设备根据该标识信息获取该至少两个通信设备中的第一通信设备的测量参数。
具体而言，第一通信设备可以向响应设备发送FTM请求帧，第一通信 设备还可以接收响应设备根据该FTM请求帧发送的第一FTM测量帧，该第一FTM测量帧可以包含多个通信设备的测量参数以及多个通信设备的标识信息，其中该多个通信设备包括第一通信设备。例如，该第一FTM测量帧包括第一通信设备的第一测量参数和第一标识信息，还可以包括其他通信设备例如第二、第三通信设备的测量参数和标识信息。该第一通信设备接收到该第一FTM测量帧后可以根据第一标识信息获取自己对应的第一测量参数，从而使得该第一通信设备可以根据该第一测量参数进行FTM测量。
该测量方法200中响应设备可以接收通信设备发送的FTM请求帧，该FTM请求帧用于请求进行FTM测量。应理解，响应设备还可以接收通信设备发送其他形式的用于请求进行FTM测量的请求帧，或者是网络系统向响应设备发送用于指示该通信设备和该响应设备进行FTM测量的指示信息，或者是MAC层以上的应用层向响应设备发送用于指示该通信设备和该响应设备进行FTM测量的指示信息，响应设备接收通信设备发送FTM请求帧只是本申请优选的实施方式。
应理解，不论从通信设备的角度描述该测量方法200还是从响应设备的角度描述该测量方法200，该测量方法表达的实质可以是通过一对多的方式发送第一FTM测量帧取代现有技术中的一对一发送FTM测量帧，不但可以减少交互的过程节省信道资源，同时多个通信设备可以同时进行FTM测量减少测量时间提高测量效率。
可选地，如图3所示，该测量方法还可以包括：
S240、接收该至少两个通信设备中每个通信设备根据该第一FTM测量帧向该响应设备发送响应信息；
S250、响应设备发送第二FTM测量帧，该第二FTM测量帧包括第一FTM测量帧的发送时刻、每个通信设备的响应信息的接收时刻和该标识信息；
S260、该每个通信设备根据该标识信息获取对应的接收时刻。
具体而言，该响应信息可以是确认信息ACK(Acknowledgement)还可以是非数据包NDP(Non-Data Packet)等其他用于进行FTM测量的信息。本方法以ACK为例，响应设备可以发送第一FTM测量帧；该每个通信设备可以接收该第一FTM测量帧并向响应设备发送ACK；响应设备分别接收每个通信设备发送的ACK。响应设备可以通过广播的形式向该每个通信设备 发送第二FTM测量帧，该第二FTM测量帧包括响应设备发送该第一FTM测量帧的发送时刻、接收该每个确认信息的接收时刻和该标识信息；该每个通信设备接收到该第二FTM测量帧后根据标识信息获取自己对应的接收时刻。其中，该每个通信设备对应的接收时刻为响应设备接收该通信设备发送的响应信息的接收时刻。
如图3所示，以两个通信设备为例，该两个通信设备可以是第一通信设备和第二通信设备，该第一通信设备和第二通信设备分别向响应设备发送FTM请求帧，该响应设备接收到两个FTM请求帧之后可以通过广播的形式发送第一FTM测量帧,该响应设备发送该第一FTM测量帧的时刻是T1；该第一FTM测量帧可以包括第一通信设备的第一测量参数、第二通信设备的第二测量参数、用于指示第一通信设备的第一标识信息和用于指示第二通信设备的第二标识信息。该第一通信设备接收到该第一FTM测量帧后可以根据该第一标识信息获取自己的第一测量参数,该第一通信设备接收该第一FTM测量帧的时刻是T2；该第一通信设备向响应设备发送第一ACK，第一通信设备发送第一ACK的时刻是T3；响应设备接收该第一通信设备发送的第一ACK，该接收第一ACK的时刻是T4。第二通信设备接收该第一FTM测量帧后可以根据该第二标识信息获取自己的第二测量参数，该第二通信设备接收该第一FTM测量帧的时刻是T5；该第二通信设备向响应设备发送第二ACK，第一通信设备发送第二ACK的时刻是T6；响应设备接收该第一通信设备发送的第二ACK，接收第二ACK的时刻是T7。该响应设备接收到第一ACK和第二ACK后可以通过广播的形式向该第一通信设备和第二通信设备发送第二FTM测量帧。其中，该第二FTM测量帧包括发送时刻T1、接收时刻T4、接收时刻T7以及第一标识信息和第二标识信息。该第一通信设备接收到该第二FTM测量帧后可以通过第一标识信息获知其对应的接收时刻T4，同理第二通信设备可以获知其对应的接收时刻T7，发送时刻T1作为公共部分被第一通信设备和第二通信设备同时获取。根据公式(1)可知，采用本方法可以获得第一通信设备和响应设备之间的距离，同理可以获得第二通信设备和响应设备之间的距离。
Figure PCTCN2016112315-appb-000001
其中，C为无线电波的传输速度，通常取C＝3*108m/s。
应理解，该测量方法200仅是以两个通信设备为例，该测量方法还可以 是多个通信设备同时进行FTM测量。
应理解，该测量方法200中，该每个通信设备可以给响应设备发送至少一个FTM测量请求帧以保证响应设备接收到该通信设备发送的FTM测量请求，同理该响应设备也可以通过广播的形式发送至少一个第一FTM测量帧和至少一个第二FTM测量帧，以保证每个通信设备可以接收到该响应设备以广播形式发送的FTM测量帧。
应理解，可以是响应设备记录该发送第一FTM测量帧的发送时刻和接收ACK的接收时刻还可以是其他计时设备记录该相应时刻，同理可以是通信设备记录接收第一FTM测量帧的接收时刻和发送ACK的发送时刻还可以是其他计时设备记录响应时刻，本申请再次不做限定。
采用该测量方法响应设备不但可以通过广播的方式发送第一FTM测量帧代替多个第一FTM测量帧实现一对多发送第一FTM测量帧的发送方式，同时可以通过广播的方式发送第二FTM测量帧代替多个第二FTM测量帧实现一对多发送第二FTM测量帧的发送方式，不但可以使多个通信设备同时进行FTM，还可以进一步减少了交互过程提高了测量效率。
可选地，在该测量方法200中，该每个通信设备的标识信息的排序与该每个通信设备在接收到该第一FTM测量帧后发送响应信息的排序具有对应关系。
具体而言，该每个通信设备的标识信息的排序可以是该每个通信设备的标识信息在所有通信设备的标识信息的排序，该每个通信设备接收该第一FTM测量帧后发送响应信息的排序可以是每个通信设备接收到该第一FTM测量帧后发送响应信息的先后顺序。假设三个通信设备C1、C2和C3的标识信息在该第一FTM测量帧的排列顺序依次为3、2、1，则该三个通信设备接收到该第一FTM测量帧反馈响应信息的顺序可以是C3首先发送，C2第二发送、C1最后发送，或该三个通信设备接收到该第一FTM测量帧发送响应信息的顺序还可以是C1首先发送、C2第二发送、C3最后发送。应理解，在本方法200中，该每个通信设备的标识信息的排序与该每个通信设备在接收到该第一FTM测量帧后发送响应信息的排序可以相同还可以相反还可以是其他对应关系，本申请在此不做限定。
应理解，该标识信息可以根据其MAC地址进行排序还可以根据响应设备接收到该通信设备FTM请求帧的顺序对该通信设备的标识信息进行排 序，标识信息如何排序本申请在此不做限定。
可选地，在该测量方法200中，该第一FTM测量帧可以包括反馈指示信息，该反馈指示信息用于指示该每个通信设备在接收到该第一FTM测量帧后发送响应信息的时间间隔。
具体而言，以ACK作为该响应信息为例，假设三个通信设备分别是C1、C2和C3，三个通信设备分别给响应设备发送FTM请求帧，响应设备接收到该三个通信设备的请求帧后，可以通过广播的形式向该三个通信设备发送第一FTM测量帧，该第一FTM测量帧包括该三个通信设备的标识信息、三个通信设备的测量参数和反馈指示信息。该三个通信设备接收到该第一FTM测量帧后可以通过标识信息获取自己对应的测量参数，同时根据该反馈指示信息指示获知何时向响应设备发送ACK。其中，该反馈指示信息的数量与该至少两个通信设备的数量相对应，即不同的通信设备对应不同的反馈指示信息以使该通信设备根据该反馈指示信息获取自己发送响应信息的时刻。例如C1的第一反馈指示信息为100us、C2的第二反馈指示信息为200us、C3的第三反馈指示信息为350us，则C1接收该第一FTM测量帧后间隔100us向响应设备发送ACK，C2接收第一FTM测量帧后间隔200us向响应设备发送ACK，C3接收该第一FTM测量帧后间隔350us向响应设备发送ACK。三个通信设备按照时间顺序依次向响应设备发送确认信息，避免了传输冲突导致的传输信息失败，提高了测量的效率。
可选地，在该测量方法200中，该第一FTM测量帧包括反馈指示信息，该反馈指示信息用于指示该每个通信设备接收到该第一FTM测量帧后，该每个通信设备之间反馈响应信息的时间间隔。
具体而言，假设有三个通信设备C1、C2和C3，该反馈指示信息可以指示三个通信设备之间反馈响应信息的时间为一个固定值T，即三个通信设备公用一个反馈指示信息。假设三个通信设备依次反馈响应信息的顺序为C2、C1、C3三个通信设备接收到该第一FTM测量帧后C2先反馈响应信息，C2反馈响应信息后间隔T时间后C1反馈响应信息，C1反馈响应信息后间隔T时间后C3反馈响应信息。换句话说，可以是C2先反馈响应信息后，间隔T时间后C1反馈响应信息，间隔2T时间，C3反馈响应信息。可选地，该至少两个通信设备在接收到第一FTM测量帧后经过一个短帧间隔SIFS反馈第一个响应。例如，C1接收到该第一FTM测量帧后经过SIFS时间发送响应 信息，C2接收到该第一FTM测量帧后经过SIFS+T时间反馈响应信息，C3接收到该第一FTM测量帧后经过SIFS+2T时间反馈响应信息。其中该T可以是SIFS+TACK其中短帧间隔SIFS(Short interframe space)可以是16us，TACK是发送或接收一个确认信息的时间可以是40us。
图4示出了FTM测量帧的行为域示意图。在该测量方法200中，图4示出的FTM测量帧可以是第一FTM测量帧。如图4所示，其中分类域(Category)，用于指明行为帧(Action Frame)的类型；公共行为域(Public Action)，紧跟分类域之后用于区别不同的公共行为帧格式；发送时间TOD(Time Of Departure)用于承载发送时间；TOD错误用于表示时间精度；到达时间TOA(Time Of Arrival)用于承载接收时间；TOA错误用于表示时间精度；精细时间测量参数域(Fine Timing Measurement Parameters)，用于承载FTM测量参数。可以将该第一FTM测量帧理解为包括公共信息和专用信息的测量帧，其中该公共信息是指多个通信设备可以公用的信息，该专用信息是指每个通信设备各自专用的信息。该专用信息可以包括每个通信设备各自的测量参数。如图4所示，如果将该反馈指示信息分别插入至专用信息中，该反馈指示信息可以指示每个通信设备在收到该第一FTM测量帧之后间隔多长时间反馈响应信息。如果将该反馈指示信息插入至公共信息中，该反馈指示信息用于指示该每个通信设备接收到该第一FTM测量帧后，该每个通信设备之间反馈响应信息的时间间隔。应理解，该反馈指示信息在每个专用部分插入的位置可以相同也可以不同，本申请在此不做限定。同理该反馈指示信息在公共信息插入的位置也可以不做限定。
多个通信设备可以根据反馈指示信息在相应的时间间隔，依次向响应设备发送响应信息，可以避免传输冲突导致的信息传输失败，同时可以准确、高效的向响应设备反馈确认信息，提高了测量效率。
可选地，在该测量方法200中，该FTM请求帧和该第一FTM测量帧中的至少一种可以包括用于指示通信设备支持多用户测量的功能指示信息。即该FTM请求帧可以包括该功能指示信息；或该第一FTM测量帧可以包括该功能指示信息；或该FTM请求帧和该第一FTM测量帧均包括功能指示信息。
其中该功能指示信息可以承载在测量参数域中，图5示出了该测量参数域(Fine Timing Measurement Parameters Field Format)的示意图。如图5所示该测量参数域可以包括状态指示(Status Indication)用于指示请求成功或 失败；值(Value)用于设定时间长度；保留(Reserved)；测量组数目(Number of bursts exponent)用于指示测量组的组数；持续时间(Burst Duration):延续的时间；FTM间隔时间(Min Delta FTM)用于指示两个连续FTM测量帧的时间间隔；分步计时(Partial TSF timer)用于指示响应设备接收到FTM请求后发送第一FTM测量帧的时间；功能指示(ASAP capable)用于指示是否能够获取第一个FTM测量帧的时间戳并且在后续FTM帧中反馈；ASAP用于指示是否希望尽快开始FTM测量；次数(FTMs per burst)用于指示一组测量中进行FTM测量的次数；FTM格式和带宽(FTM format and bandwidth)用于指示FTM帧类型以及占用带宽(例如11n的类型，还是11ac的类型，20M还是40M还是80M)；测量组时段(Burst period)用于指示一个测量组(burst)的时长。
该功能指示信息可以使响应设备或通信设备获知对方是否可以进行多对一测量操作，避免了响应设备盲目发送该第一FTM测量帧该或该通信设备盲目发送FTM请求帧。
可选地，在该测量方法200中，图4示出的FTM测量帧可以是第一FTM测量帧。如图4所示，该第一FTM测量帧还可以包括数目信息和消息长度信息中的至少一种，该数目信息用于指示该至少两个通信设备的数量，该消息长度信息用于指示每个通信设备的时间信息和参数信息占用的长度或该消息长度信息用于指示每个通信设备的时间信息或其他信息占用的长度。
该数目信息可以使该每个通信设备获知该至少两个通信设备的具体数目，以使该每个通信设备可以根据该数目信息结合自身的发送顺序或者时间间隔等因素估算自己进行FTM测量的时间和估计测量等待时间，避免了通信设备盲目发送响应信息而导致的信息发送失败或盲目等待测量，从而提高了测量效率。消息长度信息可以使每个通信设备更快速的找到自己的所需要的信息(例如时间信息或测量参数等)，提高测量效率。
上文描述了多个通信设备向响应设备发送FTM请求帧，该响应设备可以通过广播的方式向多个通信设备发送第一FTM测量帧和第二FTM测量帧中的至少一种，对多个通信设备同时进行测量。但是在实际应用场景中，响应设备向通信设备发送第二FTM测量帧之前可能还会接收到其他通信设备发送的FTM请求帧，下面我们具体描述在此场景下的测量方法。
图6示出了本申请另一实施例的测量方法的示意性流程图，如图6所示， 该测量方法可以包括：
S310、至少一个第一通信设备向响应设备发送第一FTM请求帧；
S320、响应设备根据该第一FTM请求帧发送第一FTM测量帧；
S330、该至少一个第一通信设备向响应设备发送响应信息；
S340、至少一个第二通信设备向响应设备发送第二FTM请求帧；
S350、响应设备发送第二FTM测量帧，该第二FTM测量帧包括用于指示该第一通信设备的第一标识信息、响应设备发送第一FTM测量帧的发送时刻、响应设备接收该至少一个第一通信设备中每个第一通信设备发送的响应信息的接收时刻、用于指示该至少一个第二通信设备中每个第二通信设备的第二标识信息和该每个第二通信设备的测量参数。
S360、该每个第一通信设备根据第一标识信息获取对应的接收时刻，该每个第二通信设备根据第二标识信息获取对应的测量参数。
具体而言，该响应信息可以是确认信息ACK(Acknowledgement)还可以是非数据包NDP(Non-Data Packet)。本方法以ACK为例，至少一个第一通信设备可以向响应设备发送第一FTM请求帧，响应设备接收该第一FTM请求帧后，可以根据该第一FTM请求帧发送第一FTM测量帧；该至少一个第一通信设备接收该第一FTM测量帧后可以分别向响应设备发送ACK，响应设备接收该ACK，在响应设备发送第一FTM测量帧之后且在发送第二FTM测量帧之前，该响应设备可以收到至少一个第二通信设备发送的第二FTM请求帧，此时响应设备可以向至少一个第一通信设备和至少一个第二通信设备以广播的形式发送一个第二FTM测量帧，该第二FTM测量帧可以包括用于指示该至少一个第一通信设备中每个第一通信设备的第一标识信息、该响应设备发送第一FTM测量帧的发送时刻、该响应设备接收每个第一通信设备发送的ACK的接收时刻、该至少一个第二通信设备中每个第二通信设备的测量参数和用于指示该每个第二通信设备的第二标识信息，该每个第一通信设备根据第一标识信息获取自己对应的时间信息(该发送时刻和该接收时刻)，该每个第二通信设备根据第二标识信息获取自己对应的测量参数。其中该第一通信设备获取对应的接收时刻是指：响应设备接收该第一通信设备发送的ACK的接收时刻。可选地，该第一标识信息和第二标识信息均可以包括媒体访问控制MAC(Media Access Control)地址或关联标识号AID(Association Identity)。该第一标识信息可以是该第一通信设备的 MAC地址或该第一通信设备的AID；该第二标识信息可以是该第二通信的MAC地址或该第一通信设备的AID。
应理解，如果有多个第一通信设备，该响应设备发送第一FTM测量帧的发送时刻作为公共信息被该多个第一通信设备共同获取，因此第一通信设备根据该第一标识信息获取自己对应的接收时刻。
如图6所示，以一个第一通信设备和一个第二通信设备为例，第一通信设备可以向响应设备发送第一FTM请求帧，响应设备接收到该第一FTM请求帧后可以向第一通信设备发送第一FTM测量帧,该响应设备发送第一FTM测量帧的时刻是T1，该第一通信设备接收到该第一FTM测量帧后向响应设备发送ACK，该通信设备接收该第一FTM测量帧的时间是T2，该第一通信设备发送ACK的时刻是T3，响应设备接收该ACK，该响应设备接收该ACK的时刻是T4；响应设备在发送第一FTM测量帧之后在发送第二FTM测量帧之前接收到第二通信设备发送的第二FTM请求帧，响应设备接收到该第二FTM请求帧后可以通过广播的形式向第一通信设备和第二通信设备发送第二FTM测量帧，该第二FTM测量帧包括发送时刻T1、接收时刻T4、用于指示第一通信设备的第一标识信息、第二通信设备的测量参数和用于指示第二通信设备的第二标识信息；第一通信设备接收到该第二FTM测量帧后可以根据第一标识信息获知该发送时刻T1和该接收时刻T4；第二通信设备可以根据第二标识信息获得测量参数从而进行FTM。
通过接收该第二FTM测量帧可以使该第一通信设备获知自己对应的时间信息(即发送时刻T1和接收时刻T4)，同时还可以使该第二通信设备获知自己对应的测量参数。响应设备发送一个第二FTM测量帧就可以使第一通信设备和第二通信设备获取各自需要的信息，无需向现有技术一样需要发送多个FTM测量帧。不但可以减少交互的过程节省信道资源，同时多个通信设备可以同时进行FTM测量减少测量时间提高测量效率。
应理解，在测量方法300中，响应设备可以首先接收到一个第一通信设备的第一FTM请求帧，而后再接收到一个第二通信设备的第二FTM请求帧；还可以是首先接收到一个第一通信设备的第一FTM请求帧，而后再接收到多个第二通信设备的第二FTM请求帧；还可以是首先接收到多个第一通信设备的第一FTM请求帧，而后再接收到一个第二通信设备的第二FTM请求帧；还可以是响应设备首先接收到多个第一通信设备的第一FTM请求帧， 而后再接收到多个第二通信设备的第二FTM请求帧，本申请再次不做限定。
应理解，不论是响应设备发送的FTM测量帧包括多个通信设备的标识信息以使多个通信设备获取对应的信息，或者是通信设备接收到FTM测量帧后根据自己的标识信息确定自己所需要获取的信息，均可以用本申请实施例提出的方法进行FTM。
可选地，在上述方法300中，该第一FTM测量帧可以包括该至少一个第一通信设备中每个第一通信设备的测量参数和用于指示该每个第一通信设备的第一标识信息；该每个第一通信设备根据该第一标识信息获取自己对应的测量参数。
具体而言，如果响应设备仅收到一个第一通信设备发送的第一FTM请求帧，则该响应设备可以通过单播或广播的形式向该第一通信设备发送该第一FTM测量帧。如果响应设备收到多个第一通信设备发送的多个第一FTM请求帧，该响应设备可以直接以广播的形式发送第一FTM测量帧，此时该第一FTM测量帧可以包括多个第一通信设备中每个第一通信设备的测量参数和第一标识信息，该第一FTM测量帧还可以不包括该测量参数和该第一标识信息；该响应设备还可以向现有技术一样逐个向多个第一通信设备发送该第一FTM测量帧，本申请在此不做限定。
可选地，在该测量方法300中，该至少一个第二通信设备中每个第二通信设备的第二标识信息的排序与该每个第二通信设备在接收到该第二FTM测量帧后反馈响应信息的排序具有对应关系。
具体而言，假设三个第二通信设备C1、C2和C3的第二标识信息在该第二FTM测量帧的排列顺序依次为3、2、1，则该三个第二通信设备接收到该第二FTM测量帧反馈响应信息的顺序可以是C3首先发送，C2第二发送、C1最后发送或该三个第二通信设备接收到该第二FTM测量帧反馈响应信息的顺序还可以是C1首先发送、C2第二发送、C3最后发送。
应理解，本申请该的对应关系可以是该每个第二通信设备的标识信息的排序与该每个第二通信设备在接收到该第二FTM测量帧后反馈响应信息的排序可以相同还可以相反或者是其他对应关系，本申请在此不做限定。
应理解，该第二标识信息可以根据其MAC地址进行排序还可以根据响应设备接收到该第二通信设备FTM请求帧的顺序对该通信设备的标识信息进行排序，标识信息如何排序本申请在此不做限定。
应理解，本申请中的发送时刻和接收时刻应该根据其具体的发送对象和接收对象来对该时刻进行限定。
可选地，在该测量方法300中，该第二FTM测量帧可以包括反馈指示信息，该反馈指示信息用于指示至少一个第二通信设备中每个第二通信设备在接收到该第二FTM测量帧后反馈响应信息的时间间隔。
具体而言，以ACK作为该响应信息为例，假设三个第二通信设备分别是C1、C2和C3，三个通信设备分别给响应设备发送第二FTM请求帧，响应设备接收到该三个通信设备的第二FTM请求帧后，以广播的形式发送第二FTM测量帧，该第二FTM测量帧包括该用于指示该每个第一通信设备的第一标识信息、该响应设备发送第一FTM测量帧的发送时刻、该响应设备接收每个第一通信设备ACK的接收时刻、该三个第二通个信设备各自的测量参数、用于指示该三个第二通信设备的第二标识信息和反馈指示信息。该三个第二通信设备接收到该第二FTM测量帧后可以通过该第二标识信息分别获取自己对应的测量参数，同时根据该反馈指示信息指示获知何时向响应设备发送ACK。例如C1的第一反馈指示信息为100us、C2的第二反馈指示信息为200us、C3的第三反馈指示信息为350us，则C1接收该第二FTM测量帧后间隔100us向响应设备发送ACK，C2接收第二FTM测量帧后间隔200us向响应设备发送ACK，C3接收该第二FTM测量帧后间隔350us向响应设备发送ACK。三个第二通信设备按照时间顺序依次向响应设备发送确认信息，避免了传输冲突导致传输信息失败，提高了测量的效率。
可选地，该测量方法300中，该第二FTM测量帧包括反馈指示信息，该反馈指示信息用于指示该每个第二通信设备接收到该第二FTM测量帧后，该每个第二通信设备之间反馈响应信息的时间间隔。
具体而言，假设有三个第二通信设备C1、C2和C3该反馈指示信息可以指示三个第二通信设备之间反馈响应信息的时间为一个固定值T，假设三个第二通信设备依次反馈响应信息的顺序为C2、C1、C3三个通信设备接收到该第一FTM测量帧后C2先反馈响应信息，C2反馈响应信息后间隔T，C1反馈响应信息，C1反馈响应信息后间隔T，C3反馈响应信息。可选地，该至少两个第二通信设备在接收到第二FTM测量帧后经过一个短帧间隔SIFS反馈第一个响应。例如，C1接收到该第一FTM测量帧后经过SIFS时间发送响应信息，C2接收到该第二FTM测量帧后经过SIFS+T时间反馈响 应信息，C3接收到该第二FTM测量帧后经过SIFS+2T时间反馈响应信息。其中该T可以是SIFS+TACK其中短帧间隔SIFS(Short interframe space)可以是16us，TACK是发送或接收一个确认信息的时间可以是40us。
图4示出了FTM测量帧的行为域示意图。在该测量方法300中，图4示出的FTM测量帧可以是第二FTM测量帧。如图4所示，其中分类域(Category)，用于指明行为帧(Action Frame)的类型；公共行为域(Public Action)，紧跟分类域之后用于区别不同的公共行为帧格式；发送时间TOD(Time Of Departure)用于承载第一FTM测量帧的发送时间；TOD错误用于表示时间精度；到达时间TOA(Time Of Arrival)用于承载响应设备接收到每个确认信息的时间；TOA错误用于表示时间精度；精细时间测量参数域(Fine Timing Measurement Parameters)，用于承载FTM测量参数。可选地，可以将该第二FTM测量帧理解为包括公共信息和专用信息，其中该公共信息是指多个通信设备可以公用的信息，该专用信息是指每个通信设备各自专用的信息。该专用信息可以包括第一通信设备的时间信息(例如发送FTM测量帧的发送时刻和接收响应信息的接收时刻)、标识信息和第二通信设备的测量参数和标识信息。如果将该反馈指示信息分别插入至专用信息中，该反馈指示信息可以指示每个二通信设备在收到该第二FTM测量帧之后间隔多长时间反馈响应信息。如果将该反馈指示信息插入至公共信息中，该反馈指示信息用于指示该每个第二通信设备接收到该第二FTM测量帧后，该每个第二通信设备之间反馈响应信息的时间间隔。应理解，该反馈指示信息在每个专用部分插入的位置可以相同也可以不同，本申请在此不做限定。同理该反馈指示信息在公共信息插入的位置也可以不做限定。
多个第二通信设备可以根据反馈指示信息在固定的时间间隔或确定的时刻，依次向响应设备发送响应信息，可以避免传输冲突导致的信息传输失败，同时可以准确、高效的向响应设备反馈确认信息，提高了测量效率。
可选地，该第一FTM请求帧、第二FTM请求帧、第一FTM测量帧和第二FTM测量帧中的至少一种可以包括用于指示通信设备支持多用户测量的功能指示信息。
该功能指示信息可以使响应设备或通信设备获知对方是否可以进行多对一测量操作，避免了响应设备盲目发送该相应的FTM测量帧该或该通信设备盲目发送FTM请求帧。
可选地，该第二FTM测量帧还包括数目信息和消息长度信息中的至少一种，该数目信息用于指示该第一通信设备和第二通信设备的数目之和，该消息长度信息用于指示每个第一通信设备和每个第二通信设备各自的时间信息和参数信息占用的长度。
该数目信息可以使该每个第二通信设备获知该第一通信设备和第二通信设备的数目之和，以使该每个第二通信设备可以根据该数目信息结合自身的发送顺序或者时间间隔等因素估计进行FTM测量的时长，如果估算需要等待时间很长可以再次发出请求与其他响应设备进行FTM测量或当前不进行FTM。每个第二通信设备可以估计自身反馈响应信息的时刻，避免了通信设备盲目反馈确认信息，从而提高了测量效率。消息长度信息可以使每个第一通信设备更方便的找到自己的时间信息，使每个第二通信设备更快速的找到自己的测量参数，提高测量效率。
上文主要描述通过交互确认信息来获取时间信息。为了提升测量精度，可以通过交互非数据包NDP来提高测量精度。如图7所示，
S410、至少一个第一通信设备向响应设备发送第一FTM请求帧；
S420、响应设备根据第一FTM请求帧发送第一FTM测量帧，该第一FTM测量帧包括该至少一个第一通信设备中每个第一通信设备的测量参数和用于指示该每个第一通信设备的标识信息；
S430、该每个第一通信设备根据该标识信息获取自己对应的测量参数；
S440、响应设备以广播的形式向至少一个第一通信设备发送第一NDP；
S450、至少一个第一通信设备接收到该第一NDP后向响应设备发送第二NDP；
S460、至少一个第二通信设备向响应设备发送第二FTM请求帧；
S470、响应设备发送第二FTM测量帧，该第二FTM测量帧包括用于指示该每个第一通信设备的第一标识信息、响应设备发送第一NDP的发送时刻、响应设备接收至少一个第二NDP的接收时刻、该至少一个第二通信设备中每个第二通信设备的测量参数和用于指示该每个第二通信设备的第二标识信息。
S480、该每个第一通信设备根据该第一标识信息获取自己对应的接收时刻；该每个第二通信设备根据该第二标识信息获取自己对应的测量参数。
具体而言。以两个第一通信设备和一个第二通信设备为例，响应设备可 以接收两个第一通信设备发送的第一FTM请求帧，根据该第一FTM请求帧可以以广播的形式发送第一FTM测量帧，使两个第一通信设备分别获知自己的测量参数，响应设备发送第一FTM测量帧之后，以广播的形式发送第一NDP，该响应设备发送第一FTM测量帧的发送时刻为T1；两个第一通信设备接收该第一NDP，两个第一通信设备接收第一NDP的时刻分别是T2和T5；两个第一通信设备分别向响应设备发送第二NDP，两个第一通信设备发送第二NDP的时间分别是T3和T6，一个第二通信设备向响应设备发送第二FTM请求帧，响应设备接收到该第二FTM请求帧和该两个第二NDP后，可以向两个第一通信设备和一个第二通信设备以广播的形式发送第二FTM测量帧，该第二FTM测量帧包括响应设备发送第一NDP的发送时刻T1、响应设备分别接收两个第二NDP的接收时刻T4和T7、两个第一通信设备各自的第一标识信息、第二通信设备的测量参数和用于指示该第二通信设备的第二标识信息；两个第一通信设备接收到该第二FTM测量帧后可以根据各自的第一标识信息获取响应设备发送第一FTM测量帧的发送时刻和响应设备接收其发送第二NDP的接收时刻(T1、T4)，该第一通信设备结合该发送时刻、响应设备接收其第二NDP的接收时刻、自身记录的接收第一FTM测量帧的接收时刻和发送第二NDP的发送时刻可以获取该第一通信设备和响应设备之间的距离。同时第二通信设备接收该第二FTM测量帧之后可以根据自身的第二标识信息获取测量参数从而进行FTM。可选地，该第一标识信息和第二标识信息均可以包括媒体访问控制MAC(Media Access Control)地址或关联标识号AID(Association Identity)。该第一标识信息可以是该第一通信设备的MAC地址或该第一通信设备的AID；该第二标识信息可以是该第二通信的MAC地址或该第一通信设备的AID。
可选地，该第一FTM测量帧可以包括反馈指示信息，该第二FTM测量帧也可以包括反馈指示信息，在第一FTM测量帧中，该反馈指示信息用于指示该每个第一通信设备在接收到该第一NDP后发送第二NDP的时间间隔；在第二FTM测量帧中，该反馈指示信息用于指示该每个第二通信设备在接收到该第二FTM测量帧后发送信响应信息的时间间隔。
可选地，在第一FTM测量帧中，该每个第一通信设备的第一标识信息的排序与该每个第一通个信设备接收到该第一NDP发送第二NDP的排序具有对应关系；该第二FTM测量帧中，该每个第二通信设备的第二标识信息 的排序与该每个第二通信设备接收到该第二FTM测量帧后发送响应信息的排序具有对应关系。
可选地，，该第一FTM测量帧包括反馈指示信息，该反馈指示信息用于指示该每个通信设备接收到该第一FTM测量帧后，该每个第一通信设备之间反馈响应信息的时间间隔。
可选地，该第一FTM请求帧、第二FTM请求帧、第一FTM测量帧和该第二FTM测量帧中的至少一种可以包括用于指示通信设备支持多用户测量的功能指示信息。
该功能指示信息可以使响应设备或通信设备获知对方是否可以进行多对一测量操作，避免了响应设备盲目发送该相应的FTM测量帧该或该通信设备盲目发送FTM请求帧。
可选地，该第二FTM测量帧还包括数目信息和消息长度信息中的至少一种，该数目信息用于指示该第一通信设备和第二通设备的数目之和，该消息长度信息用于指示每个第一通信设备和每个第二通信设备的时间信息和参数信息占用的长度。
响应设备可以通过发送一个第一FTM测量帧代替多个第一FTM测量帧，通过发送一个第二FTM测量帧代替多个第二FTM测量帧，不但可以减少了交互过程提高了测量效率，同时通过交互NDP来获取对应的时间信息可以提升测量精度，进而提高测量的准确率。
上文描述了一种FTM的方法，相应的下文描述使用该方法进行测量的通信设备。
如图8所示，本申请实施例提出了一种通信设备500，一般情况下，具有wifi功能的终端都可以作为该测量装置500，例如智能终端，接入点AP等等。该通信设备500可以包括：
接收模块510，用于接收至少两个通信站点发送的精细时间测量FTM请求帧；
发送模块520，用于根据该FTM请求帧发送第一FTM测量帧，该第一FTM测量帧包括该至少两个通信站点中每个通信站点的测量参数和用于指示该每个通信站点的标识信息，以使该每个通信站点根据该标识信息获取测量参数。
可选地，该第一FTM测量帧包括反馈指示信息，该反馈指示信息用于 指示该每个通信站点在接收到该第一FTM测量帧后发送响应信息的时间间隔。
可选地，该第一FTM测量帧包括反馈指示信息，该反馈指示信息用于指示该每个通信站点接收到该第一FTM测量帧后，该每个通信站点之间反馈响应信息的时间间隔。
可选地，该接收模块510还用于接收该每个通信站点根据该第一FTM测量帧发送的响应信息；该发送模块520还用于向该至少两个通信站点发送第二FTM测量帧，该第二FTM测量帧包括该通信设备发送第一FTM测量帧的发送时刻、每个通信站点发送的响应信息的接收时刻和该标识信息，以使该每个通信站点根据该标识信息获取对应的接收时刻。
可选地，该每个通信站点的标识信息的排序与该每个通信站点在接收到该第一FTM测量帧后发送响应信息的排序具有对应关系。
可选地，该标识信息包括媒体访问控制MAC地址或关联标识号AID。
可选地，该FTM请求帧和该第一FTM测量帧中的至少一种可以包括用于指示通信站点或通信设备支持多用户测量的功能指示信息。
可选地，该发送模块520发送的第一FTM测量帧还可以包括数目信息和消息长度信息中的至少一种，该数目信息用于指示该至少两个通信站点的数量，该消息长度信息用于指示每个通信站点的时间信息和参数信息占用的长度或该消息长度信息用于指示每个通信设备的时间信息或其他信息占用的长度。
应理解，根据本申请实施例的通信设备500可对应于本申请实施例中的方法的执行主体，并且装置500中的各个模块的上述和其它操作和/或功能分别为了实现图2至图7中的各个方法的相应流程，为了简洁，在此不再赘述。
如图9所示，本申请另一实施例提出了一种通信设备600，该通信设备包括：
接收模块610，用于接收至少一个第一通信设备发送的第一FTM请求帧；
发送模块620，用于根据该接收模块接收的该第一FTM请求帧发送第一FTM测量帧；
该接收模块610还用于接收该至少一个第一通信设备中每个第一通信设备根据该第一FTM测量帧发送的响应信息；该接收模块还用于接收至少一 个第二通信设备发送的第二FTM请求帧；该发送模块还用于发送第二FTM测量帧，该第二FTM测量帧包括用于指示该每个第一通信设备的第一标识信息、响应设备发送第一FTM测量帧的发送时刻、每个第一通信设备发送的响应信息的接收时刻、该至少一个第二通信设备中每个第二通信设备的测量参数和用于指示该每个第二通信设备的第二标识信息，以使该每个第一通信设备根据该第一标识信息获取对应的接收时刻，该每个第二通信设备根据该第二标识信息获取测量参数。
可选地，该第一FTM测量帧包括该每个第一通信设备的测量参数和该第一标识信息，以使该第一通信设备根据该第一标识信息获取该第一通信设备的测量参数。
可选地，该第二FTM测量帧包括反馈指示信息，该反馈指示信息用于指示该每个第二通信设备在接收到该第二FTM测量帧后发送响应信息的时间间隔。
可选地，该每个第二通信设备的第二标识信息的排序与该每个第二通信设备在接收到该第二FTM测量帧后发送响应信息的排序具有对应关系。
可选地，该第一标识信息和该第二标识信息均包括媒体访问控制MAC地址或关联标识号AID。
可选地，该第二FTM测量帧包括反馈指示信息，该反馈指示信息用于指示该每个第二通信设备接收到该第一FTM测量帧后，该每个第二通信设备之间反馈响应信息的时间间隔。
可选地，该FTM请求帧、该第一FTM测量帧和该第二FTM测量帧中的至少一种可以包括用于指示通信设备支持多用户测量的功能指示信息。
可选地，该第二FTM测量帧还包括数目信息和消息长度信息中的至少一种，该数目信息用于指示该第一通信设备和第二通信设备的数目之和，该消息长度信息用于指示每个通信设备的时间信息和参数信息占用的长度或该消息长度信息用于指示每个通信设备的时间信息或其他信息占用的长度。
应理解，根据本申请实施例的通信设备600可对应于本申请实施例中的方法的执行主体，并且装置600中的各个模块的上述和其它操作和/或功能分别为了实现图2至图7中的各个方法的相应流程，为了简洁，在此不再赘述。
如图10所示，本申请又一实施例提供了一种通信设备700，该通信设备700包括：
发送模块710，用于向响应设备发送精细时间测量FTM请求帧；
接收模块720，用于接收该响应设备根据该FTM请求帧发送的第一FTM测量帧，该第一FTM测量帧包括至少两个设备中每个设备的测量参数和用于指示该每个设备的标识信息；
获取模块730，用于根据该标识信息获取该至少两个设备中的该通信设备的测量参数。
可选地，该第一FTM测量帧包括反馈指示信息，该反馈指示信息用于指示该通信设备在接收到该第一FTM测量帧后发送响应信息的时间间隔。
可选地，该发送模块710还用于根据该接收模块接收的第一FTM测量帧向该响应设备发送响应信息；该接收模块还用于接收该响应设备发送的第二FTM测量帧，该第二FTM测量帧包括该响应设备发送第一FTM测量帧的发送时刻、该响应设备接收该每个设备的响应信息的接收时刻和该标识信息；
该获取模块730还用于根据该标识信息获取该该通信设备对应的接收时刻。
可选地，该通信设备的标识信息在该至少两个设备的标识信息的排序与该通信设备在接收到该第一FTM测量帧后发送响应信息在该至少两个设备在接收到该第一FTM测量帧后发送响应信息的排序具有对应关系。
可选地，该标识信息包括媒体访问控制MAC地址或关联标识号AID。
可选地，该第一FTM测量帧包括反馈指示信息，该反馈指示信息用于指示该每个设备接收到该第一FTM测量帧后，该每个设备之间反馈响应信息的时间间隔。
可选地，该FTM请求帧和该第一FTM测量帧包括用于指示通信设备支持多用户测量的功能指示信息。
可选地，该第一FTM测量帧还包括数目信息和消息长度信息中的至少一种，该数目信息用于指示该至少两个设备的数量，该消息长度信息用于指示每个设备的时间信息和参数信息占用的长度或该消息长度信息用于指示每个设备的时间信息或其他信息占用的长度。
应理解，根据本申请实施例的通信设备700可对应于本申请实施例中的方法的执行主体，并且装置700中的各个模块的上述和其它操作和/或功能分别为了实现图2至图7中的各个方法的相应流程，为了简洁，在此不再赘述。
如图11所示，在本申请再一实施例中提供了一种通信设备800，该测量装,800包括：
发送模块810，用于向响应设备发送第一精细时间测量FTM请求帧；
接收模块820，用于接收该响应设备根据该第一FTM请求帧发送的第一FTM测量帧；
该发送模块810还用于向响应设备发送响应信息；该接收模块还用于接收该响应设备发送的第二FTM测量帧，该第二FTM测量帧包括用于指示该通信设备的第一标识信息、该响应设备发送该第一FTM测量帧的发送时刻、该响应设备接收该通信设备的响应信息的接收时刻、至少一个第一通信设备中每个第一通信设备的测量参数和用于指示该每个第一通信设备的第二标识信息；
获取模块830，用于根据该第一标识信息获取该通信设备对应的接收时刻。
可选地，该第一FTM测量帧包括该通信设备的测量参数和该第一标识信息；该获取模块还用于根据该第一标识信息获取该通信设备的测量参数。
可选地，该第二FTM测量帧包括反馈指示信息，该反馈指示信息用于指示该每个第一通信设备在接收到该第二FTM测量帧后发送响应信息的时间间隔。
可选地，该每个第一通信设备的第二标识信息的排序与该每个第一通信设备在接收到该第二FTM测量后发送响应信息的排序具有对应关系。
可选地，该第一标识信息和该第二标识信息包括媒体访问控制MAC地址或关联标识号AID。
可选地，该第一FTM请求帧、第二FTM请求帧、第一FTM测量帧和第二FTM测量帧中的至少一种包括用于指示通信设备支持多用户测量的功能指示信息。
可选地，该第二FTM测量帧还包括数目信息和消息长度信息中的至少一种，该数目信息用于指示该通信设备和第一通信设备的数目之和，该消息长度信息用于指示该通信设备和该每个第一通信设备各自的时间信息和参数信息占用的长度。
应理解，根据本申请实施例的通信设备800可对应于本申请实施例中的方法的执行主体，并且装置800中的各个模块的上述和其它操作和/或功能分 别为了实现图2至图7中的各个方法的相应流程，为了简洁，在此不再赘述。
图8至图11从功能模块的角度描述了一种通信设备，下面从实体装置的角度描述该通信设备.
图12示出了本申请实施例的通信设备，该通信设备包括收发器910、处理器920、存储器930、和总线系统940。其中，收发器910、处理器920和存储器930可以通过总线系统940相连，该存储器930可以用于存储指令，该处理器920用于执行该存储器存储的指令，以控制收发器910接收或发送信息；
该收发器910用于接收至少两个通信站点发送的精细时间测量FTM请求帧；用于根据该FTM请求帧发送第一FTM测量帧，该第一FTM测量帧包括该至少两个通信站点中每个通信站点的测量参数和用于指示该每个通信站点的标识信息，以使该每个通信站点根据该标识信息获取该每个通信站点的测量参数。
可选地，该第一FTM测量帧包括反馈指示信息，该反馈指示信息用于指示该每个通信站点在接收到该第一FTM测量帧后发送响应信息的时间间隔。
可选地，该收发器910还用于接收该每个通信站点根据该第一FTM测量帧发送的响应信息；该收发器910还用于向该至少两个通信站点发送第二FTM测量帧，该第二FTM测量帧包括该通信设备发送第一FTM测量帧的发送时刻、每个通信站点发送的响应信息的接收时刻和该标识信息，以使该每个通信站点根据该标识信息获取对应的接收时刻。
可选地，该每个通信站点的标识信息的排序与该每个通信站点在接收到该第一FTM测量帧后发送响应信息的排序具有对应关系。
可选地，该标识信息包括媒体访问控制MAC地址或关联标识号AID。
应理解，在本申请实施例中，该处理器920可以是中央处理单元(Central Processing Unit，简称为“CPU”)，该处理器920还可以是其他通用处理器、数字信号处理器(DSP)、专用集成电路(ASIC)、现成可编程门阵列(FPGA)或者其他可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件等。通用处理器可以是微处理器或者该处理器也可以是任何常规的处理器等。
该存储器930可以包括只读存储器和随机存取存储器，并向处理器920提供指令和数据。存储器930的一部分还可以包括非易失性随机存取存储器。 例如，存储器930还可以存储设备类型的信息。
该总线系统940除包括数据总线之外，还可以包括电源总线、控制总线和状态信号总线等。但是为了清楚说明起见，在图中将各种总线都标为总线系统940。
在实现过程中，上述方法的各步骤可以通过处理器920中的硬件的集成逻辑电路或者软件形式的指令完成。结合本申请实施例所公开的方法的步骤可以直接体现为硬件处理器执行完成，或者用处理器中的硬件及软件模块组合执行完成。软件模块可以位于随机存储器，闪存、只读存储器，可编程只读存储器或者电可擦写可编程存储器、寄存器等本领域成熟的存储介质中。该存储介质位于存储器930，处理器920读取存储器930中的信息，结合其硬件完成上述方法的步骤。为避免重复，这里不再详细描述。
应理解，根据本申请实施例的通信设备900可对应于本申请实施例中的方法的执行主体，并且装置900中的各个模块的上述和其它操作和/或功能分别为了实现图2至图7中的各个方法的相应流程，为了简洁，在此不再赘述。
图13示出了本申请实施例的通信设备，该通信设备包括收发器1010、处理器1020、存储器1030、和总线系统1040。其中，收发器1010、处理器1020和存储器1030可以通过总线系统1040相连，该存储器1030可以用于存储指令，该处理器1020用于执行该存储器存储的指令，以控制收发器1010接收或发送信息；
该收发器1010用于接收至少一个第一通信设备发送的第一精细时间测量FTM请求帧；根据该第一FTM请求帧发送第一FTM测量帧；接收该至少一个第一通信设备中每个第一通信设备根据该第一FTM测量帧发送的响应信息；接收至少一个第二通信设备发送的第二FTM请求帧；发送第二FTM测量帧，该第二FTM测量帧包括用于指示该每个第一通信设备的第一标识信息、该第一FTM测量帧的发送时刻、该每个第一通信设备根据该第一FTM测量帧发送的响应信息的接收时刻、至少一个第二通信设备中每个第二通信设备的测量参数和用于指示该每个第二通信设备的第二标识信息，以使该每个第一通信设备根据该第一标识信息获取对应的接收时刻，该每个第二通信设备根据该第二标识信息获取测量参数。
可选地，该第一FTM测量帧包括该每个第一通信设备的测量参数和该第一标识信息，以使该每个第一通信设备根据该第一标识信息获取该每个第 一通信设备的测量参数。
可选地，该第二FTM测量帧包括反馈指示信息，该反馈指示信息用于指示该每个第二通信设备在接收到该第二FTM测量帧后发送响应信息的时间间隔。
可选地，该每个第二通信设备的第二标识信息的排序与该每个第二通信设备在接收到该第二FTM测量帧后发送响应信息的排序具有对应关系。
可选地，该第一标识信息和该第二标识信息均包括媒体访问控制MAC地址或关联标识号AID。
应理解，在本申请实施例中，该处理器1020可以是中央处理单元(Central Processing Unit，简称为“CPU”)，该处理器1020还可以是其他通用处理器、数字信号处理器(DSP)、专用集成电路(ASIC)、现成可编程门阵列(FPGA)或者其他可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件等。通用处理器可以是微处理器或者该处理器也可以是任何常规的处理器等。
该存储器1030可以包括只读存储器和随机存取存储器，并向处理器1020提供指令和数据。存储器1030的一部分还可以包括非易失性随机存取存储器。例如，存储器1030还可以存储设备类型的信息。
该总线系统1040除包括数据总线之外，还可以包括电源总线、控制总线和状态信号总线等。但是为了清楚说明起见，在图中将各种总线都标为总线系统1040。
在实现过程中，上述方法的各步骤可以通过处理器1020中的硬件的集成逻辑电路或者软件形式的指令完成。结合本申请实施例所公开的方法的步骤可以直接体现为硬件处理器执行完成，或者用处理器中的硬件及软件模块组合执行完成。软件模块可以位于随机存储器，闪存、只读存储器，可编程只读存储器或者电可擦写可编程存储器、寄存器等本领域成熟的存储介质中。该存储介质位于存储器1030，处理器1020读取存储器1030中的信息，结合其硬件完成上述方法的步骤。为避免重复，这里不再详细描述。
应理解，根据本申请实施例的通信设备1000可对应于本申请实施例中的方法的执行主体，并且装置1000中的各个模块的上述和其它操作和/或功能分别为了实现图2至图7中的各个方法的相应流程，为了简洁，在此不再赘述。
图14示出了本申请实施例的通信设备，该通信设备包括收发器1110、 处理器1120、存储器1130、和总线系统1140。其中，收发器1110、处理器1120和存储器1130可以通过总线系统1140相连，该存储器1130可以用于存储指令，该处理器1120用于执行该存储器存储的指令，以控制收发器1110接收或发送信息；
该收发器1110用于向响应设备发送精细时间测量FTM请求帧；接收该响应设备根据该FTM请求帧发送的第一FTM测量帧，该第一FTM测量帧包括至少两个设备中每个设备的测量参数和用于指示该每个设备的标识信息；
该处理器1130用于根据该标识信息获取该通信设备的测量参数，其中该通信设备为该至少两个设备中的一个。
可选地，该收发器1120接收的该第一FTM测量帧包括反馈指示信息，该反馈指示信息用于指示该通信设备在接收到该第一FTM测量帧后发送响应信息的时间间隔。
可选地，该接收器1110还用于根据该第一FTM测量帧向该响应设备发送响应信息；接收该响应设备发送的第二FTM测量帧，该第二FTM测量帧包括该响应设备发送第一FTM测量帧的发送时刻、该响应设备接收该每个设备的响应信息的接收时刻和该标识信息；
该处理器1130还用于根据该标识信息获取该通信设备对应的接收时刻。
可选地，该通信设备的标识信息在该至少两个设备的标识信息的排序与该通信设备在接收到该第一FTM测量帧后发送响应信息在该至少两个设备在接收到该第一FTM测量帧后发送响应信息的排序具有对应关系。
可选地，该标识信息包括媒体访问控制MAC地址或关联标识号AID。
应理解，在本申请实施例中，该处理器1120可以是中央处理单元(Central Processing Unit，简称为“CPU”)，该处理器1120还可以是其他通用处理器、数字信号处理器(DSP)、专用集成电路(ASIC)、现成可编程门阵列(FPGA)或者其他可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件等。通用处理器可以是微处理器或者该处理器也可以是任何常规的处理器等。
该存储器1130可以包括只读存储器和随机存取存储器，并向处理器1120提供指令和数据。存储器1130的一部分还可以包括非易失性随机存取存储器。例如，存储器1130还可以存储设备类型的信息。
该总线系统1140除包括数据总线之外，还可以包括电源总线、控制总 线和状态信号总线等。但是为了清楚说明起见，在图中将各种总线都标为总线系统1140。
在实现过程中，上述方法的各步骤可以通过处理器1120中的硬件的集成逻辑电路或者软件形式的指令完成。结合本申请实施例所公开的方法的步骤可以直接体现为硬件处理器执行完成，或者用处理器中的硬件及软件模块组合执行完成。软件模块可以位于随机存储器，闪存、只读存储器，可编程只读存储器或者电可擦写可编程存储器、寄存器等本领域成熟的存储介质中。该存储介质位于存储器1130，处理器1120读取存储器1130中的信息，结合其硬件完成上述方法的步骤。为避免重复，这里不再详细描述。
应理解，根据本申请实施例的通信设备1100可对应于本申请实施例中的方法的执行主体，并且装置1100中的各个模块的上述和其它操作和/或功能分别为了实现图2至图7中的各个方法的相应流程，为了简洁，在此不再赘述。
图15示出了本申请实施例的通信设备，该通信设备包括收发器1210、处理器1220、存储器1230、和总线系统1240。其中，收发器1210、处理器1220和存储器1230可以通过总线系统1240相连，该存储器1230可以用于存储指令，该处理器1220用于执行该存储器存储的指令，以控制收发器1210接收或发送信息；
该收发器1210用于向响应设备发送第一精细时间测量FTM请求帧；接收该响应设备根据该第一FTM请求帧发送的第一FTM测量帧；向响应设备发送响应信息；接收该响应设备发送的第二FTM测量帧，该第二FTM测量帧包括用于指示该通信设备的第一标识信息、该响应设备发送该第一FTM测量帧的发送时刻、该响应设备接收该通信设备的响应信息的接收时刻、至少一个第一通信设备中每个第一通信设备的测量参数和用于指示该每个第一通信设备的第二标识信息；
该处理器1230用于根据该第一标识信息获取该通信设备对应的接收时刻。
可选地，该第一FTM测量帧包括该第一通信设备的测量参数和该第一标识信息；该处理器1230还用于根据该第一标识信息获取该通信设备的测量参数.
可选地，该第二FTM测量帧包括反馈指示信息，该反馈指示信息用于 指示该每个第一通信设备在接收到该第二FTM测量帧后发送响应信息的时间间隔。
可选地，该每个第一通信设备的第二标识信息的排序与该每个第一通信设备在接收到该第二FTM测量后发送响应信息的排序具有对应关系。
可选地，该第一标识信息和该第二标识信息包括媒体访问控制MAC地址或关联标识号AID。
应理解，在本申请实施例中，该处理器1220可以是中央处理单元(Central Processing Unit，简称为“CPU”)，该处理器1220还可以是其他通用处理器、数字信号处理器(DSP)、专用集成电路(ASIC)、现成可编程门阵列(FPGA)或者其他可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件等。通用处理器可以是微处理器或者该处理器也可以是任何常规的处理器等。
该存储器1230可以包括只读存储器和随机存取存储器，并向处理器1220提供指令和数据。存储器1230的一部分还可以包括非易失性随机存取存储器。例如，存储器1230还可以存储设备类型的信息。
该总线系统1240除包括数据总线之外，还可以包括电源总线、控制总线和状态信号总线等。但是为了清楚说明起见，在图中将各种总线都标为总线系统1240。
在实现过程中，上述方法的各步骤可以通过处理器1220中的硬件的集成逻辑电路或者软件形式的指令完成。结合本申请实施例所公开的方法的步骤可以直接体现为硬件处理器执行完成，或者用处理器中的硬件及软件模块组合执行完成。软件模块可以位于随机存储器，闪存、只读存储器，可编程只读存储器或者电可擦写可编程存储器、寄存器等本领域成熟的存储介质中。该存储介质位于存储器1230，处理器1220读取存储器1230中的信息，结合其硬件完成上述方法的步骤。为避免重复，这里不再详细描述。
应理解，根据本申请实施例的通信设备1200可对应于本申请实施例中的方法的执行主体，并且装置1200中的各个模块的上述和其它操作和/或功能分别为了实现图2至图7中的各个方法的相应流程，为了简洁，在此不再赘述。
应理解，在本申请实施例中，“第一”和“第二”仅仅为了区分不同的对象，但并不对本申请实施例的范围构成限制。
应理解，在本申请的各种实施例中，上述各过程的序号的大小并不意味 着执行顺序的先后，各过程的执行顺序应以其功能和内在逻辑确定，而不应对本申请实施例的实施过程构成任何限定。
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、计算机软件或者二者的结合来实现，为了清楚地说明硬件和软件的可互换性，在上述说明中已经按照功能一般性地描述了各示例的组成及步骤。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，为了描述的方便和简洁，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，该单元的划分，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。另外，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，也可以是电的，机械的或其它的形式连接。
该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申请实施例方案的目的。
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，也可以是两个或两个以上单元集成在一个单元中。上述集成的单元既可以采用硬件的形式实现，也可以采用软件功能单元的形式实现。

Claims (40)

  1. 一种精细时间测量FTM方法，其特征在于，所述方法包括：
    接收至少两个通信设备发送的FTM请求帧；
    根据所述FTM请求帧发送第一FTM测量帧，所述第一FTM测量帧包括所述至少两个通信设备中每个通信设备的测量参数和用于指示所述每个通信设备的标识信息，以使所述每个通信设备根据所述标识信息获取所述每个通信设备的测量参数。
  2. 根据权利要求1所述的方法，其特征在于，所述第一FTM测量帧包括反馈指示信息，所述反馈指示信息用于指示所述每个通信设备在接收到所述第一FTM测量帧后发送响应信息的时间间隔。
  3. 根据权利要求1或2所述的方法，其特征在于，所述方法还包括：
    接收所述每个通信设备根据所述第一FTM测量帧发送的响应信息；
    发送第二FTM测量帧，所述第二FTM测量帧包括所述第一FTM测量帧的发送时刻、每个通信设备发送的响应信息的接收时刻和所述标识信息，以使所述每个通信设备根据所述标识信息获取对应的接收时刻。
  4. 根据权利要求1至3中任一项所述的方法，其特征在于，所述每个通信设备的标识信息的排序与所述每个通信设备在接收到所述第一FTM测量帧后发送响应信息的排序具有对应关系。
  5. 根据权利要求1至4中任一项所述的方法，其特征在于，所述标识信息包括媒体访问控制MAC地址或关联标识号AID。
  6. 一种精细时间测量FTM方法，其特征在于，所述方法包括：
    接收至少一个第一通信设备发送的第一FTM请求帧；
    根据所述第一FTM请求帧发送第一FTM测量帧；
    接收所述至少一个第一通信设备中每个第一通信设备根据所述第一FTM测量帧发送的响应信息；
    接收至少一个第二通信设备发送的第二FTM请求帧；
    发送第二FTM测量帧，所述第二FTM测量帧包括用于指示所述每个第一通信设备的第一标识信息、所述第一FTM测量帧的发送时刻、每个第一通信设备发送的响应信息的接收时刻、所述至少一个第二通信设备中每个第二通信设备的测量参数和用于指示所述每个第二通信设备的第二标识信息， 以使所述每个第一通信设备根据所述第一标识信息获取对应的接收时刻，所述每个第二通信设备根据所述第二标识信息获取所述每个第二通信设备的测量参数。
  7. 根据权利要6所述的方法，其特征在于，所述第一FTM测量帧包括所述每个第一通信设备的测量参数和所述第一标识信息，以使所述每个第一通信设备根据所述第一标识信息获取所述每个第一通信设备的测量参数。
  8. 根据权利要求6或7所述的方法，其特征在于，所述第二FTM测量帧包括反馈指示信息，所述反馈指示信息用于指示所述每个第二通信设备在接收到所述第二FTM测量帧后发送响应信息的时间间隔。
  9. 根据权利要求6至8中任一项所述的方法，其特征在于，所述每个第二通信设备的第二标识信息的排序与所述每个第二通信设备在接收到所述第二FTM测量帧后发送响应信息的排序具有对应关系。
  10. 根据权利要求6至9中任一项所述的方法，其特征在于，所述第一标识信息和所述第二标识信息均包括媒体访问控制MAC地址或关联标识号AID。
  11. 一种精细时间测量FTM方法，其特征在于，所述方法包括：
    第一通信设备向响应设备发送FTM请求帧；
    所述第一通信设备接收所述响应设备根据所述FTM请求帧发送的第一FTM测量帧，所述第一FTM测量帧包括至少两个通信设备中每个通信设备的测量参数，所述第一FTM测量帧还包括用于指示所述每个通信设备的标识信息；
    所述第一通信设备根据所述标识信息获取所述至少两个通信设备中的第一通信设备的测量参数。
  12. 根据权利要求11所述的方法，其特征在于，所述第一FTM测量帧包括反馈指示信息，所述反馈指示信息用于指示所述第一通信设备在接收到所述第一FTM测量帧后发送响应信息的时间间隔。
  13. 根据权利要求11或12所述的方法，其特征在于，所述方法还包括：
    所述第一通信设备根据所述第一FTM测量帧向所述响应设备发送响应信息；
    所述第一通信设备接收所述响应设备发送的第二FTM测量帧，所述第二FTM测量帧包括所述响应设备发送第一FTM测量帧的发送时刻、所述响 应设备接收所述每个通信设备的响应信息的接收时刻和所述标识信息；
    所述第一通信设备根据所述标识信息获取所述第一通信设备对应的接收时刻。
  14. 根据权利要求11至13中任一项所述的方法，其特征在于，所述第一通信设备的标识信息在所述至少两个通信设备的标识信息的排序与所述第一通信设备接收到所述第一FTM测量帧后发送响应信息在所述至少两个通信设备接收到所述第一FTM测量帧后发送响应信息的排序具有对应关系。
  15. 根据权利要求11至14中任一项所述的方法，其特征在于，所述标识信息包括媒体访问控制MAC地址或关联标识号AID。
  16. 一种精细时间测量FTM方法，其特征在于，所述方法包括：
    第一通信设备向响应设备发送第一FTM请求帧；
    所述第一通信设备接收所述响应设备根据所述第一FTM请求帧发送的第一FTM测量帧；
    所述第一通设备向响应设备发送响应信息；
    所述第一通信设备接收所述响应设备发送的第二FTM测量帧，所述第二FTM测量帧包括用于指示第一通信设备的第一标识信息、所述响应设备发送所述第一FTM测量帧的发送时刻、所述响应设备接收所述第一通信设备的响应信息的接收时刻、至少一个第二通信设备中每个第二通信设备的测量参数和用于指示所述每个第二通信设备的第二标识信息；
    所述第一通信设备根据所述第一标识信息获取所述第一通信设备对应的接收时刻。
  17. 根据权利要求16所述的方法，其特征在于，所述第一FTM测量帧包括所述第一通信设备的测量参数和所述第一标识信息；
    所述方法还包括：
    所述第一通信设备根据所述第一标识信息获取所述第一通信设备的测量参数。
  18. 根据权利要求16或17所述的方法，其特征在于，所述第二FTM测量帧包括反馈指示信息，所述反馈指示信息用于指示所述每个第二通信设备在接收到所述第二FTM测量帧后发送响应信息的时间间隔。
  19. 根据权利要求16至18中任一项所述的方法，其特征在于，所述每 个第二通信设备的第二标识信息的排序与所述每个第二通信设备在接收到所述第二FTM测量后发送响应信息的排序具有对应关系。
  20. 根据权利要求16至19中任一项所述的方法，其特征在于，所述第一标识信息和所述第二标识信息均包括媒体访问控制MAC地址或关联标识号AID。
  21. 一种通信设备，其特征在于，所述通信设备包括：
    接收模块，用于接收至少两个通信站点发送的精细时间测量FTM请求帧；
    发送模块，用于根据所述FTM请求帧发送第一FTM测量帧，所述第一FTM测量帧包括所述至少两个通信站点中每个通信站点的测量参数和用于指示所述每个通信站点的标识信息，以使所述每个通信站点根据所述标识信息获取所述每个通信站点的测量参数。
  22. 根据权利要求21所述的通信设备，其特征在于，所述第一FTM测量帧包括反馈指示信息，所述反馈指示信息用于指示所述每个通信站点在接收到所述第一FTM测量帧后发送响应信息的时间间隔。
  23. 根据权利要求21或22所述的通信设备，其特征在于，所述接收模块还用于接收所述每个通信站点根据所述第一FTM测量帧发送的响应信息；所述发送模块还用于向所述至少两个通信站点发送第二FTM测量帧，所述第二FTM测量帧包括所述通信设备发送第一FTM测量帧的发送时刻、每个通信站点发送的响应信息的接收时刻和所述标识信息，以使所述每个通信站点根据所述标识信息获取对应的接收时刻。
  24. 根据权利要求21至23中任一项所述的通信设备，其特征在于，所述每个通信站点的标识信息的排序与所述每个通信站点在接收到所述第一FTM测量帧后发送响应信息的排序具有对应关系。
  25. 根据权利要求21至24中任一项所述的通信设备，其特征在于，所述标识信息包括媒体访问控制MAC地址或关联标识号AID。
  26. 一种通信设备，其特征在于，所述通信设备包括：
    接收模块，用于接收至少一个第一通信设备发送的第一精细时间测量FTM请求帧；
    发送模块，用于根据所述接收模块接收的所述第一FTM请求帧发送第一FTM测量帧；
    所述接收模块还用于接收所述至少一个第一通信设备中每个第一通信设备根据所述第一FTM测量帧发送的响应信息；接收至少一个第二通信设备发送的第二FTM请求帧；
    所述发送模块还用于发送第二FTM测量帧，所述第二FTM测量帧包括用于指示所述每个第一通信设备的第一标识信息、第一FTM测量帧的发送时刻、每个第一通信设备发送的响应信息的接收时刻、所述至少一个第二通信设备中每个第二通信设备的测量参数和用于指示所述每个第二通信设备的第二标识信息，以使所述每个第一通信设备根据所述第一标识信息获取对应的接收时刻，所述每个第二通信设备根据所述第二标识信息获取所述每个第二通信设备的测量参数。
  27. 根据权利要求26所述的通信设备，其特征在于，所述第一FTM测量帧包括所述每个第一通信设备的测量参数和所述第一标识信息，以使所述每个第一通信设备根据所述第一标识信息获取所述每个第一通信设备的测量参数。
  28. 根据权利要求26或27所述的通信设备，其特征在于，所述第二FTM测量帧包括反馈指示信息，所述反馈指示信息用于指示所述每个第二通信设备在接收到所述第二FTM测量帧后发送响应信息的时间间隔。
  29. 根据权利要求26至28中任一项所述的通信设备，其特征在于，所述每个第二通信设备的第二标识信息的排序与所述每个第二通信设备在接收到所述第二FTM测量帧后发送响应信息的排序具有对应关系。
  30. 根据权利要求26至29中任一项所述的通信设备，其特征在于，所述第一标识信息和所述第二标识信息均包括媒体访问控制MAC地址或关联标识号AID。
  31. 一种通信设备，其特征在于，所述通信设备包括：
    发送模块，用于向响应设备发送精细时间测量FTM请求帧；
    接收模块，用于接收所述响应设备根据所述FTM请求帧发送的第一FTM测量帧，所述第一FTM测量帧包括至少两个设备中每个设备的测量参数和用于指示所述每个设备的标识信息；
    获取模块，用于根据所述标识信息获取所述通信设备的测量参数，其中所述通信设备为所述至少两个设备中的一个。
  32. 根据权利要求31所述的通信设备，其特征在于，所述第一FTM测 量帧包括反馈指示信息，所述反馈指示信息用于指示所述通信设备在接收到所述第一FTM测量帧后发送响应信息的时间间隔。
  33. 根据权利要求31或32所述的通信设备，其特征在于，
    所述发送模块还用于根据所述接收模块接收的第一FTM测量帧向所述响应设备发送响应信息；
    所述接收模块还用于接收所述响应设备发送的第二FTM测量帧，所述第二FTM测量帧包括所述响应设备发送第一FTM测量帧的发送时刻、所述响应设备接收所述每个设备的响应信息的接收时刻和所述标识信息；
    所述获取模块还用于根据所述标识信息获取所述通信设备对应的接收时刻。
  34. 根据权利要求31至33中任一项所述的通信设备，其特征在于，所述通信设备的标识信息在所述至少两个设备的标识信息的排序与所述通信设备在接收到所述第一FTM测量帧后发送响应信息在所述至少两个设备在接收到所述第一FTM测量帧后发送响应信息的排序具有对应关系。
  35. 根据权利要求31至34中任一项所述的通信设备，其特征在于，所述标识信息包括媒体访问控制MAC地址或关联标识号AID。
  36. 一种通信设备，其特征在于，所述通信设备包括：
    发送模块，用于向响应设备发送第一精细时间测量FTM请求帧；
    接收模块，用于接收所述响应设备根据所述第一FTM请求帧发送的第一FTM测量帧；
    所述发送模块还用于向响应设备发送响应信息；
    所述接收模块还用于接收所述响应设备发送的第二FTM测量帧，所述第二FTM测量帧包括用于指示所述通信设备的第一标识信息、所述响应设备发送所述第一FTM测量帧的发送时刻、所述响应设备接收所述通信设备的响应信息的接收时刻、至少一个第一通信设备中每个第一通信设备的测量参数和用于指示所述每个第一通信设备的第二标识信息；
    获取模块，用于根据所述第一标识信息获取所述通信设备对应的接收时刻。
  37. 根据权利要求36所述的通信设备，其特征在于，所述第一FTM测量帧包括所述通信设备的测量参数和所述第一标识信息；所述获取模块还用于根据所述第一标识信息获取所述通信设备的测量参数。
  38. 根据权利要求36或37所述的通信设备，其特征在于，所述第二FTM测量帧包括反馈指示信息，所述反馈指示信息用于指示所述每个第一通信设备在接收到所述第二FTM测量帧后发送响应信息的时间间隔。
  39. 根据权利要求36至38中任一项所述的通信设备，其特征在于，所述每个第一通信设备的第二标识信息的排序与所述每个第一通信设备在接收到所述第二FTM测量后发送响应信息的排序具有对应关系。
  40. 根据权利要求36至39中任一项所述的通信设备，其特征在于，所述第一标识信息和所述第二标识信息包括媒体访问控制MAC地址或关联标识号AID。
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