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WO2023092350A1 - Procédé de communication et dispositif - Google Patents

Procédé de communication et dispositif Download PDF

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Publication number
WO2023092350A1
WO2023092350A1 PCT/CN2021/132901 CN2021132901W WO2023092350A1 WO 2023092350 A1 WO2023092350 A1 WO 2023092350A1 CN 2021132901 W CN2021132901 W CN 2021132901W WO 2023092350 A1 WO2023092350 A1 WO 2023092350A1
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WIPO (PCT)
Prior art keywords
measurement
perception
sensing
information
perception measurement
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Ceased
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PCT/CN2021/132901
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English (en)
Chinese (zh)
Inventor
罗朝明
黄磊
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Guangdong Oppo Mobile Telecommunications Corp Ltd
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Guangdong Oppo Mobile Telecommunications Corp Ltd
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Priority to CN202180100933.6A priority Critical patent/CN117693949A/zh
Priority to PCT/CN2021/132901 priority patent/WO2023092350A1/fr
Publication of WO2023092350A1 publication Critical patent/WO2023092350A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/08—Testing, supervising or monitoring using real traffic
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/50—Service provisioning or reconfiguring

Definitions

  • the present application relates to the communication field, and more specifically, to a communication method and device.
  • Wireless local area network may include methods and applications for sensing people or objects in the environment by measuring changes in WLAN signals scattered and/or reflected by people or objects.
  • WLAN awareness is usually implemented using WLAN signals conforming to wireless communication standards.
  • Embodiments of the present application provide a communication method and device, which can flexibly perform perception measurement settings.
  • An embodiment of the present application provides a communication method, including: a first device sends first information, where the first information is used to indicate suspension and/or resumption of perception measurement settings.
  • An embodiment of the present application provides a communication method, including: a second device receives first information, where the first information is used to indicate suspension and/or resumption of perception measurement settings.
  • An embodiment of the present application provides a first device, including: a sending unit, configured to send first information, where the first information is used to indicate suspension and/or resumption of perception measurement settings.
  • An embodiment of the present application provides a second device, including: a receiving unit configured to receive first information, where the first information is used to indicate suspension and/or resumption of perception measurement settings.
  • An embodiment of the present application provides a first device, including a processor and a memory.
  • the memory is used to store a computer program
  • the processor is used to call and run the computer program stored in the memory, so that the first device executes the above-mentioned communication method.
  • An embodiment of the present application provides a second device, including a processor and a memory.
  • the memory is used to store a computer program
  • the processor is used to call and run the computer program stored in the memory, so that the second device executes the above-mentioned communication method.
  • An embodiment of the present application provides a chip configured to implement the above communication method.
  • the chip includes: a processor, configured to invoke and run a computer program from the memory, so that the device installed with the chip executes the above-mentioned communication method.
  • An embodiment of the present application provides a computer-readable storage medium for storing a computer program, and when the computer program is run by a device, the device is made to execute the communication method described above.
  • An embodiment of the present application provides a computer program product, including computer program instructions, where the computer program instructions cause a computer to execute the communication method described above.
  • An embodiment of the present application provides a computer program that, when running on a computer, causes the computer to execute the communication method described above.
  • the embodiment of the present application can flexibly perform perception measurement setting, and reduce the load of the communication system.
  • Fig. 1 is a schematic diagram of an application scenario according to an embodiment of the present application.
  • 2a to 2j are schematic diagrams of WLAN perception and participants.
  • Fig. 3 is a schematic flow diagram of a WLAN awareness session.
  • FIG. 4 is a schematic diagram of WLAN-aware session parameter negotiation.
  • Fig. 5 is a schematic diagram of a measurement setup and a measurement example.
  • Fig. 6 is a schematic diagram of a measurement process based on a trigger frame.
  • Fig. 7 is a schematic diagram of the reporting process.
  • Fig. 8 is a schematic flowchart of a communication method according to an embodiment of the present application.
  • Fig. 9 is a schematic flowchart of a communication method according to another embodiment of the present application.
  • 10a and 10b are schematic diagrams of an interface for suspending measurement settings and/or an interface for reporting execution status.
  • Fig. 11 is a schematic diagram of an interface for executing states.
  • 12a and 12b are schematic diagrams of an interface for restoring measurement settings and/or an interface for reporting execution status.
  • Fig. 13 is a schematic diagram of an interface for reporting execution status.
  • Fig. 14 is a schematic diagram of a perception measurement setting pause frame.
  • Fig. 15 is a schematic diagram of another perception measurement setting pause frame.
  • Fig. 16 is a schematic diagram of a perception measurement setting recovery request frame.
  • Fig. 17 is a schematic diagram of another perception measurement setting recovery request frame.
  • Fig. 18 is a schematic diagram of a perception measurement setting recovery response frame.
  • Fig. 19 is a schematic diagram of another perception measurement setting recovery response frame.
  • Fig. 20 is a schematic block diagram of a first device according to an embodiment of the present application.
  • Fig. 21 is a schematic block diagram of a second device according to an embodiment of the present application.
  • Fig. 22 is a schematic block diagram of a communication device according to an embodiment of the present application.
  • FIG. 23 is a schematic block diagram of a chip according to an embodiment of the present application.
  • Fig. 24 is a schematic block diagram of a communication system according to an embodiment of the present application.
  • WLAN wireless local area network
  • WiFi wireless Fidelity
  • WiFi wireless Fidelity
  • the communication system 100 may include an access point (Access Point, AP) 110, and a station (STATION, STA) 120 accessing a network through the access point 110.
  • Access Point Access Point
  • STA station
  • an AP is also called an AP STA, that is, in a sense, an AP is also a kind of STA.
  • STA is also called non-AP STA (non-AP STA).
  • the communication in the communication system 100 may be the communication between the AP and the non-AP STA, or the communication between the non-AP STA and the non-AP STA, or the communication between the STA and the peer STA, wherein, the peer STA It can refer to the device that communicates with the STA peer.
  • the peer STA may be an AP or a non-AP STA.
  • the AP is equivalent to a bridge connecting the wired network and the wireless network. Its main function is to connect various wireless network clients together, and then connect the wireless network to the Ethernet.
  • the AP device can be a terminal device (such as a mobile phone) or a network device (such as a router).
  • the terminal device or network device has a chip for implementing communication functions, such as a WLAN or WiFi chip.
  • the role of the STA in the communication system is not absolute.
  • the mobile phone when the mobile phone is connected to the router, the mobile phone is a non-AP STA, and when the mobile phone is used as a hotspot for other mobile phones, the mobile phone acts as an AP. .
  • AP and non-AP STA can be applied to the equipment in the Internet of Vehicles, IoT nodes and sensors in the Internet of Things (IoT), smart cameras in smart homes, smart remote controls, smart water meters, etc. And sensors in smart cities, etc.
  • IoT Internet of Things
  • the non-AP STA can support the 802.11be standard.
  • the non-AP STA can also support 802.11ax, 802.11ac, 802.11n, 802.11g, 802.11b, and 802.11a and other current and future wireless local area networks (wireless local area networks, WLAN) standards of the 802.11 family.
  • 802.11ax, 802.11ac, 802.11n, 802.11g, 802.11b, and 802.11a and other current and future wireless local area networks (wireless local area networks, WLAN) standards of the 802.11 family.
  • WLAN wireless local area networks
  • the AP may be a device supporting the 802.11be standard.
  • the AP may also be a device supporting various current and future WLAN standards of the 802.11 family, such as 802.11ax, 802.11ac, 802.11n, 802.11g, 802.11b, and 802.11a.
  • the STA may be a mobile phone (Mobile Phone), tablet computer (Pad), computer, virtual reality (Virtual Reality, VR) device, augmented reality (Augmented Reality, AR) device, Wireless devices in industrial control, set-top boxes, wireless devices in self driving, vehicle communication devices, wireless devices in remote medical, wireless devices in smart grid , wireless devices in transportation safety, wireless devices in smart city or wireless devices in smart home, wireless communication chips/ASIC/SOC/etc.
  • the frequency bands supported by the WLAN technology may include but not limited to: low frequency bands (eg 2.4GHz, 5GHz, 6GHz) and high frequency bands (eg 60GHz).
  • low frequency bands eg 2.4GHz, 5GHz, 6GHz
  • high frequency bands eg 60GHz
  • FIG. 1 exemplarily shows one AP STA and two non-AP STAs.
  • the communication system 100 may include multiple AP STAs and other numbers of non-AP STAs. This embodiment of the present application does not include Do limited.
  • the "indication" mentioned in the embodiments of the present application may be a direct indication, may also be an indirect indication, and may also mean that there is an association relationship.
  • a indicates B which can mean that A directly indicates B, for example, B can be obtained through A; it can also indicate that A indirectly indicates B, for example, A indicates C, and B can be obtained through C; it can also indicate that there is an association between A and B relation.
  • the term "corresponding" may indicate that there is a direct or indirect correspondence between the two, or that there is an association between the two, or that it indicates and is indicated, configuration and is configuration etc.
  • WLAN terminals participating in sensing may include a sensing session initiator (Sensing initiator, which may be referred to as the sensing initiator), a sensing session responder (Sensing Responder, which may be referred to as the sensing responder), and a sensing signal transmitter (Sensing transmitter, which may be referred to as the sensing sender) ), sensing signal receiver (Sensing receiver, can be referred to as sensing receiver) and other roles.
  • sensing session initiator which may be referred to as the sensing initiator
  • Sensing Responder which may be referred to as the sensing responder
  • sensing signal transmitter which may be referred to as the sensing sender
  • sensing receiver can be referred to as sensing receiver
  • STA1 is a sensing initiator (non-standalone), sensing receiver and sensing processor (Sensing processor); STA2 is a sensing sender.
  • STA1 is a perception initiator (non-independent) and a perception sender;
  • STA2 is a perception receiver and a perception processor.
  • STA1 is a perception initiator (independent) and a perception processor;
  • STA2 is a perception receiver;
  • STA3 is a perception sender.
  • STA1 is a perception initiator (non-independent), a perception receiver and a perception processor; STA2 and STA3 are perception senders.
  • STA1 is a perception initiator (non-independent), a perception sender and a perception processor; STA2 and STA3 are perception receivers.
  • STA1 is a perception initiator (independent), STA2 is a perception receiver and a perception processor, STA3 and STA4 are perception senders.
  • STA1 is a perception initiator (non-independent), a perception sender, a perception receiver and a perception processor.
  • STA1 is a perception initiator (independent), and STA2 is a perception sender, a perception receiver and a perception processor.
  • STA1 is a perception initiator (non-independent), a perception sender, a perception receiver and a perception processor, and STA2 is a perception sender and a perception receiver.
  • STA1 is a perception initiator (independent) and a perception processor
  • STA2 is a perception sender and a perception receiver
  • STA3 is also a perception sender and a perception receiver.
  • the solid line arrows represent the illumination signal
  • the short dotted line arrows represent the sensing measurement
  • the dotted line arrows represent the sensing result (sensing result)
  • the long dotted line arrows represent the echo signal ( echo signal).
  • the illumination signal (illumination signal) can also be a sensing measurement signal (sensing measurement), which is attenuated and diffracted by the occlusion of a person, and the signal characteristics change when the sensing receiving device receives it.
  • the illumination signal (illumination signal) is reflected by the person to generate an echo signal (echo signal), and the echo signal is received by the sensing receiving device to perceive the change.
  • STA only represents the role of STA, and is not used to limit the number of STAs in Figure 2a to Figure 2j and subsequent steps such as sensing sessions and measurements, for example, STAs representing the roles of STA1, STA2, and STA3 for one or more.
  • the WLAN sensing session includes one or more of the following stages: session setup (Session Setup); sensing measurement setting establishment (Measurement Setup); sensing measurement (Measurement); sensing reporting (Reporting); sensing measurement setting end (Measurement Setup) Termination); session end (Session Termination).
  • a WLAN terminal may have one or more roles in a sensing session.
  • the initiator of a sensing session can be only the initiator of a sensing session, or can be a sensing signal sender, a sensing signal receiver, or a sensing signal at the same time. Sender and Receiver of Sensitive Signal.
  • Session establishment phase establish a perception session, determine the perception capability and general perception parameters of the device.
  • Perception measurement setting establishment phase determine the perception session participants and their roles (including the perception signal sender and the perception signal receiver), decide the operation parameters related to the perception measurement, and optionally exchange the parameters between the terminals.
  • Perceptual measurement stage Perceptual measurement is implemented, and the sensory signal sender sends the sensory signal to the sensory signal receiver.
  • Sensing reporting stage report measurement results, depending on the application scenario, the receiver of the sensing signal may need to report the measurement results to the initiator of the sensing session.
  • Perception measurement setting end stage the terminal ends the corresponding measurement of the measurement setting, and cleans up related resources.
  • Session end phase the terminal stops measuring and terminates the sensing session.
  • SENS STA1 may be a Sensing Initiator and Transmitter.
  • SENS STA2 can be Sensing Responder and Receiver.
  • SENS STA3 can be Sensing Responder and Transmitter.
  • Mode 1 Terminal SENS STA1 sends a sensing request (SENS Request) to SENS STA2, and SENS STA2 sends a sensing response (SENS Response).
  • Mode 3 Terminal SENS STA1 sends a sensing request (SENS Request) to SENS STA3, and SENS STA3 sends a sensing response (SENS Response).
  • the perception session initiator can establish multiple sets of measurement parameters through the Measurement Setup process.
  • a group of measurement parameters can be identified by a measurement setup ID (Measurement Setup ID), and can be applied to multiple measurements (the multiple measurements can be equivalent to a burst group, Burst Group).
  • Each measurement (which can be equivalent to a burst, Burst) can be identified by a measurement instance ID (Measurement Instance ID).
  • a TB measurement process is generally adopted.
  • the process may include polling (Polling), uplink measurement (UL, Uplink, sensing sounding), downlink measurement (DL, Downlink, sensing sounding) and key update (Key update).
  • STA1 and STA2 are sensing transmitters (Sensing Transmitter), and STA3, STA 4 and STA 5 are sensing receivers (Sensing Receiver).
  • the AP sends a polling trigger frame to detect whether the participating devices are available.
  • the AP sends trigger frames and NDP frames.
  • the AP sends NDPA frames and NDP frames.
  • STA1-4 sends a permission to send frame (Clear To Send-to self, CTS-to-self) to respond to the polling frame, confirming that he can participate in the upcoming perception measurement (Here STA1-4 respond with CTS-to-self to confirm they will participate in upcoming sensing sounding.).
  • STA 5 did not respond to the CTS-to-self frame, so the AP will not include STA5 in the upcoming sensing measurement (STA5 does not send CTS-to-self back, so AP will not include STA5 in upcoming sensing sounding.) .
  • UL sensing sounding is optionally present, conditioned on at least one sensing transmitters responds in the polling.
  • AP sends TF (Trigger Frame, trigger frame) to STA1-2 to request NDP packet transmission for uplink measurement (AP sends a TF to STA1-2 to solicit NDP packet transmission to do UL sensing sounding.).
  • TF Trigger Frame, trigger frame
  • NDP from STA1-2 can be in UL (Uplink, uplink)-MIMO (Multiple-Input Multiple-Output, multiple input and multiple output)/UL (Uplink, uplink)-OFDMA (Orthogonal Frequency Division Multiple Access, orthogonal frequency division) at the same time Multiple access) to be transmitted (NDP from STA1-2 could be transmitted simultaneously in UL-MIMO/UL-OFDMA).
  • UL-MIMO Multiple-Input Multiple-Output, multiple input and multiple output
  • UL (Uplink, uplink)-OFDMA Orthogonal Frequency Division Multiple Access, orthogonal frequency division
  • DL sensing sounding is optionally present, conditioned on at least one sensing transmitters receiver in the polling.
  • AP sends NDPA+NDP to STA3-4 to perform downlink measurement (AP sends NDPA+NDP to STA3-4 to perform DL sensing sounding).
  • Key update is optionally present if secure LTF info needs to be updated and communicated to STAs if secure LTF information needs to be updated and communicated to STAs.
  • the updated information can be carried in an action or management frame (The updated information can be carried in an action or management frame).
  • the measurement result is explicitly requested by the perception initiating device (such as triggered by a sensory feedback request frame or a sensory report trigger frame in related technology 6) or implicitly requested to report (such as triggered by NDP in related technology 5).
  • the measurement results can be reported immediately (immediate report) or delayed report (delayed report). Delayed reporting is generally explicitly requested by the perception initiating device.
  • the sensing signal sending device sends a feedback trigger (Trigger) frame after sending the NDP frame
  • the sensing signal receiving device is such as receiving device_1 (Receiver_1), receiving device_2 (Receiver_2), receiving device_ After receiving the trigger frame, n (Receiver_n) etc. report the measurement results to the sensing signal sending device, such as measurement feedback_1 (Measurement feedback_1), measurement feedback_2 (Measurement feedback_2), measurement feedback_n (Measurement feedback_n), etc.
  • Fig. 8 is a schematic flowchart of a communication method 800 according to an embodiment of the present application.
  • the method can optionally be applied to the system shown in Fig. 1, but is not limited thereto.
  • the method includes at least some of the following.
  • the first device sends first information, where the first information is used to indicate the suspension and/or resumption of the perception measurement setting.
  • the first device sends first information to the second device, where the first information is used to instruct the second device to suspend perception measurement setting (which may be referred to as measurement setting or perception setting).
  • the first device sends first information to the second device, where the first information is used to instruct the second device to restore the perception measurement setting.
  • the first information includes at least one of the following fields:
  • the first perception subclass indicates that the frame carrying the first information is a perception measurement setting pause frame.
  • the first device may send a perception measurement setting pause frame carrying the first information to the second device.
  • the perception measurement setting pause frame may also be referred to as a perception measurement setting pause request frame.
  • the frame sent by the first device to the second device may carry a field named Sensing Subtype (Sensing Subtype), and the value of this field indicates the first sensing subtype, which may indicate that the frame is suspended for sensing measurement request frame.
  • the first perception measurement identifier includes a perception measurement identifier corresponding to a perception measurement setting that needs to be suspended.
  • the frame sent by the first device to the second device may carry a field named Measurement Setup ID, and the value of this field indicates the first sensory measurement ID, indicating a sensory measurement setup that needs to be suspended
  • the corresponding perception measurement ID For example, a perception measurement setting that needs to be suspended includes the parameters used in the measurement (such as the role of the device in the perception, the bandwidth used by the perception, the number of sent airspace flows, the number of received airspace flows, the type of measurement results, etc.), the corresponding perception measurement ID1.
  • the first perception measurement identifier list includes multiple perception measurement identifiers corresponding to multiple perception measurement settings that need to be suspended, and different perception measurement identifiers correspond to different perception measurement settings.
  • the sensory measurement setup pause frame sent by the first device to the second device may carry a field named measurement setup ID (Measurement Setup ID), and the value of this field indicates the list of first sensory measurement IDs, indicating that a pause is required
  • the field for indicating the first perception measurement identity list may include a plurality of fields for indicating the first perception measurement identity.
  • the perception measurement identifier list 1 may include the perception measurement identifier 1, the perception measurement identifier 2, and the perception measurement identifier 3, and different perception measurement identifiers may correspond to different parameters used in the measurement.
  • Perception measurement identification 1 corresponds to a perception measurement setting that needs to be suspended, including parameters used in the measurement (such as the role of the device in perception 1, the bandwidth used for perception 1, the number of sending airspace streams 1, the number of receiving airspace streams 1, and the measurement results type, etc.
  • the perception measurement identification 2 corresponds to a perception measurement setting that needs to be suspended, including the parameters used in the measurement (such as the role of the device in perception 2, the bandwidth used for perception 2, the number of sending airspace streams 2, the receiving airspace flow number 2, type of measurement result 2, etc.);
  • perception measurement identification 3 corresponds to a perception measurement setting that needs to be suspended, including parameters used in the measurement (such as the role of the device in perception 3, the bandwidth used by perception 3, the sending airspace number of streams 3, number of received airspace streams 3, type of measurement result 3, etc.).
  • the first reason includes a reason for suspending the perception measurement setting.
  • the reason for setting the pause awareness measurement includes at least one of the following:
  • the reason for suspending the perception measurement setting is related to the device type and role of the first device.
  • the first device may be an AP or a Non-AP. If the AP is the perception initiating device, the reasons why it requires a pause may be: it has a lot of buffered downlink data to send; the pause indicated by the upper layer application. If the Non-AP is a sensing and responding device, the reasons for its request to suspend may be: its own battery is low; it has more cached uplink data to send; it will start point-to-point communication.
  • the reasons for its request to suspend may be: its own battery is low; it has more cached uplink data to send; it will start point-to-point communication; the suspension indicated by the upper layer application. If the AP is a sensing and responding device, the reason why it requires a pause may be that it has more buffered downlink data to send.
  • the field used to indicate the first reason can be realized by reason code (Reason Code).
  • the value of the reason code can indicate the following reasons: 0 means that the self-power is low, and the sensory measurement is suspended in order to save power; 1 means that the self has more cached uplink data to be sent, and the sensory measurement is suspended; 2 means that the self will turn on peer-to-peer Communication (peer-to-peer, P2P), suspend participation in measurement; 3 indicates suspension of upper layer application instruction; 4 ⁇ 255 are reserved.
  • the value of this field is only an exemplary introduction, and it can also be set to other values, as long as it is ensured that the value corresponding to each reason code is different from the value of other reason codes.
  • the upper layer application may include an application program installed in the first device for implementing certain functions.
  • applications for gesture recognition, face recognition, and other functions are examples of applications.
  • the method further includes:
  • the first device suspends its own perception measurement setting based on the first reason.
  • the first device may suspend its own perception measurement setting, and send the first information to the second device to indicate the second The device suspends the same perception measurement setup.
  • the first device is an AP
  • the AP is a sensing initiating device.
  • the first device suspends its own perception measurement setting in at least one of the following situations:
  • the amount of downlink data buffered by the first device itself that needs to be sent is greater than the downlink data amount threshold;
  • the suspension indicated by the upper layer application for example, the station management entity (Station Management Entity, SME) of the first device receives the suspension indication sent by the upper layer application of the first device, and the indication is used to indicate the perception measurement setting that needs to be suspended.
  • SME Selection Management Entity
  • the first device is an AP
  • the AP is a sensing initiating device.
  • the first device suspends its perception measurement setting in the following situation: it has a lot of buffered downlink data to send.
  • the first device is a Non-AP
  • the Non-AP is a sensing response device.
  • the first device suspends its own perception measurement setting in at least one of the following situations:
  • the power of the first device is low, for example, the power of the first device is lower than the power threshold;
  • the first device is a Non-AP, and the Non-AP is a sensing response device.
  • the first device suspends its own perception measurement setting in at least one of the following situations: its own battery is low; it has more buffered uplink data to send; it will start point-to-point communication; the upper-layer application indicates the suspension.
  • the method further includes: when the first device suspends its own perception measurement setting, stopping the timer for detecting expiration.
  • the first device is a sensing response device
  • the timer is used to detect that the sensing responding device does not receive a sensing measurement instance initiated by the sensing initiating device (second device) after a first length of time elapses, Automatically end the perception measurement settings corresponding to the perception measurement instance. For example, when suspending the measurement setting, the sensing response device stops the timer used to detect expiration, and the timer is used to detect how long the sensing response device itself has not received the sensing initiation (for example, after a first time length, that is, the timing duration of the timer). If the measurement instance initiated by the device (the second device) is detected, the sensing response device automatically ends the measurement setting.
  • the first device is a sensing initiating device
  • the timer is used to detect that the sensing responding device (second device) does not participate in the sensing measurement instance initiated by the sensing initiating device after a second length of time elapses, Automatically end the perception measurement settings corresponding to the perception measurement instance. For example, when the sensing initiating device suspends the measurement setting, it stops the timer used to detect expiration, and the timer is used to detect how long the sensing responding device (second device) lasts (for example, after a second time length, that is, after the timing of the timer) If the sensing initiating device does not participate in the measurement instance initiated by the sensing initiating device, the sensing initiating device automatically ends the measurement setting.
  • the suspension indicated by the upper-layer application is the suspension-aware measurement setting indicated by the upper-layer application of the first device based on a Basic Service Set (Basic Service Set, BSS) load higher than a first set threshold.
  • BSS Basic Service Set
  • the upper layer application may instruct the SME to suspend one or more perception measurement settings based on the BSS load being higher than a first set threshold.
  • the BSS load includes at least one of the following:
  • Channel utilization; available admission time; sensing occupancy; ranging occupancy; sensing and ranging occupancy is the ratio of the channel busy time to the total estimated time.
  • the available admission time is the medium access time that can be used for explicit admission control.
  • the perceived occupancy rate may be the ratio of the perceived occupied time to the total measured time.
  • the ranging occupancy rate may be a ratio of the time taken for ranging to the total time for measuring and calculating.
  • the sensing and ranging occupancy rate may be a ratio of the time occupied by sensing and ranging to the total measuring time.
  • the first information includes at least one of the following fields:
  • the second perception subclass indicates that the frame carrying the first information is a perception measurement setting recovery request frame.
  • the first device may send a perception measurement setting recovery request frame carrying the first information to the second device.
  • the frame sent by the first device to the second device may carry a field named Sensing Subtype (Sensing Subtype), and the value of this field indicates the second sensing subtype, which may indicate that the frame is recovery of sensing measurement settings request frame.
  • Sensing Subtype Sensing Subtype
  • the second perception measurement identifier includes a perception measurement identifier of a perception measurement setting that needs to be restored.
  • the second perception measurement identifier list includes a plurality of perception measurement identifiers of the perception measurement settings that need to be restored.
  • the sensory measurement setup recovery request frame sent by the first device to the second device may carry a field named measurement setup ID (Measurement Setup ID), and the value of this field indicates the second sensory measurement ID list, indicating the need to A plurality of perception measurement identifiers corresponding to the restored plurality of perception measurement settings.
  • the field for indicating the second perception measurement identity list may include a plurality of fields for indicating the second perception measurement identity.
  • the perception measurement identifier list 1 may include perception measurement identifier 1 , perception measurement identifier 2 , and perception measurement identifier 3 .
  • Perception measurement ID 1 corresponds to a perception measurement setting that needs to be restored, including parameters used in the measurement (such as the role of the device in perception 1, the bandwidth used for perception 1, the number of sending airspace streams 1, the number of receiving airspace streams 1, and the measurement results type 1, etc.);
  • perception measurement identification 2 corresponds to a perception measurement setting that needs to be restored, including the parameters used in the measurement (such as the role of the device in perception 2, the bandwidth used for perception 2, the number of sending airspace streams 2, the receiving airspace Flow number 2, measurement result type 2, etc.);
  • a perception measurement setting corresponding to the perception measurement identification 3 that needs to be restored includes parameters used in the measurement (such as the role of the device in the perception 3, the bandwidth used by the perception 3, the sending airspace number of streams 3, number of received airspace streams 3, type of measurement result 3, etc.).
  • the method further includes:
  • the first device receives second information in response to the first information.
  • the first device receives the second information of the second device, and the second information responds to the setting of the pause awareness measurement indicated by the first information.
  • the first device sends the first information to the second device, and the second information responds to the recovery awareness measurement setting indicated by the first information.
  • the second information includes at least one of the following fields:
  • the third perception subclass indicates that the frame carrying the second information is a perception measurement setting recovery response frame.
  • the first device may receive a perception measurement setting recovery response frame carrying the second information from the second device.
  • the frame received by the first device from the second device may carry a field named Sensing Subtype (Sensing Subtype), and the value of this field indicates the third sensing subtype, which may indicate that the frame is recovery of sensing measurement settings response frame.
  • Sensing Subtype Sensing Subtype
  • the second reason includes a reason for refusing to restore the measurement setting.
  • the reason for refusing to restore the measurement setting includes at least one of the following:
  • the perception measurement settings that need to be restored have been terminated by the perception initiating device and cannot be restored;
  • the field used to indicate the second reason can be realized by reason code (Reason Code).
  • the value of the reason code can indicate the following reasons for refusal to restore: 0 means that the sensing measurement setting has been terminated by the sensing initiator device and cannot be restored; 1 means that other devices have already participated in the measurement as a substitute, and the device is no longer needed; 2 ⁇ 255 are reserved.
  • the value of this field is only an exemplary introduction, and it can also be set to other values, as long as it is ensured that the value corresponding to each reason code is different from the value of other reason codes.
  • the second information may further include a field for indicating the fourth perception subclass.
  • the fourth perception subclass may indicate that the frame carrying the second information is a perception measurement setting pause response frame.
  • Perception Measurement Setup Pause frames can be action frames or no-acknowledgement action frames. If the sensory measurement setting pause frame is an action frame, then the sensory measurement setting pause response frame may be an Ack frame; if the sensory measurement setting pause frame is a non-confirmation action frame, then the sensory measurement setting pause response frame may be a single response frame.
  • the field for indicating the first perception subclass, the field for indicating the first perception subclass, the field for indicating the third perception subclass, the field for indicating the fourth perception subclass can be realized by using different values of the same field.
  • This field adopts different values, and the frames carried respectively are sensory measurement setting pause request frame, sensory measurement setting resume request frame, sensory measurement setting resume response frame, sensory measurement setting pause response frame.
  • a field named Sensing Subtype may be carried in the frame, and the value of this field may be any value within the range of 0 to 255.
  • An example of the frame type represented by the value of this field is as follows: 0 indicates a proxy request frame (Sensing By Proxy Request frame); 1 indicates a proxy response frame (Sensing By Proxy Response frame); 2 indicates a sensing measurement setup request frame (Sensing Measurement Setup Request frame); 3 means Sensing Measurement Setup Response frame (Sensing Measurement Setup Response frame); 4 means Sensing Measurement Setup Termination frame (Sensing Measurement Setup Termination frame); 5 means Sensing Measurement Setup Termination Request frame (Sensing Measurement Setup Termination Request frame) ; 6 represents the Sensing Measurement Setup Suspend frame (Sensing Measurement Setup Suspend frame); 7 represents the Sensing Measurement Setup Resume Request frame (Sensing Measurement Setup Resume Request frame); 8 represents the Sensing Measurement Setup Resume
  • the method further includes: the first device resumes its suspended perception measurement setting based on the resume indicated by the upper layer application.
  • the SME of the first device receives a recovery indication sent by an upper-layer application of the first device, and the indication is used to indicate the perception measurement settings that need to be recovered.
  • the first device may restore its own suspended perception measurement settings based on the restoration indicated by the upper layer application. For example, if the resumption indicated by the upper layer application includes perception measurement setting 1 and perception measurement setting 2 that need to be resumed, the first device resumes the suspended perception measurement setting 1 and perception measurement setting 2 .
  • the upper-layer application of the first device can invoke the software interface provided by the SME to restore the suspended sensory measurement setting 1 and sensory measurement setting 2 .
  • the restoration indicated by the upper-layer application is the restoration-aware measurement setting indicated by the upper-layer application of the first device based on the BSS load being lower than the second set threshold.
  • the upper layer application may instruct the SME to resume one or more suspended perception measurement settings if the load based on the BSS is below a second set threshold.
  • a second set threshold For a specific example of the BSS load, refer to the relevant description above.
  • the second set threshold in this example may be the same as or different from the above-mentioned first set threshold for determining whether to suspend the perception measurement setting.
  • the method further includes: when the first device restores its own suspended perception measurement setting, restarting the timer for detecting expiration.
  • the first device is a sensory response device. After restarting the timer for detecting expiration, the timer re-detects how long the sensory response device itself has not received (for example, after a first time period, that is, the timer's timing period). Upon reaching the measurement instance initiated by the sensing initiating device (the second device), the sensing responding device automatically ends the measurement setting.
  • the first device is the sensing initiating device. After restarting the timer for detecting expiration, how long the timer will continue to detect the sensing responding device (the second device) (for example, after a second length of time, that is, the timer's After a predetermined period of time) does not participate in the measurement instance initiated by the sensing initiating device, the sensing initiating device will automatically end the measurement setting.
  • the sensing responding device for example, after a second length of time, that is, the timer's After a predetermined period of time
  • the SME of the first device provides at least one of the following interfaces for the upper layer application of the first device:
  • the first device includes an upper-layer application, an SME, and a media access control (Medium Access Control, MAC) sub-layer management entity.
  • the above-mentioned one or more interfaces provided by the SME of the first device for its own upper-layer applications may be used to manage the WLAN awareness process.
  • the upper-layer application calls the interface to perform corresponding actions.
  • the upper layer application invokes an interface for suspending the perception measurement setting, and the first device may send a perception measurement setting pause frame for instructing to suspend the perception measurement setting to the second device.
  • the upper layer application invokes the interface for restoring the perception measurement setting, and the first device may send a perception measurement setting restoration request frame to the second device for instructing to restore the perception measurement setting.
  • the interface for reporting the execution state is used to report at least one of the following to the upper layer application: operation type; operation status code; measurement setting identification; measurement identification list identification; failure reason code; exception related information.
  • the operation type includes at least one of the following: establishing measurement setting; ending measurement setting; suspending measurement setting; resuming measurement setting;
  • the status code of the operation may include a code indicating that the operation is successful and/or a code indicating that the operation has failed. For example, 1 for success and 0 for failure.
  • the SME reports the measurement setting identifier and/or the measurement identifier list identifier to the upper-layer application through the interface for reporting the execution state, and can inform the upper-layer application which measurement settings have been specifically operated.
  • the failure reason code may indicate a reason for failure to execute a certain operation.
  • the first device sends a sensory measurement setting recovery request frame for instructing recovery of sensory measurement settings to the second device, but since the sensory measurement settings that need to be recovered have been completed by the second device, such as the sensory initiating device, the second device refuses to restore The perception measurement is set.
  • the second device may return a reason code 0 to the first device through the perception measurement setting restoration response frame, indicating the reason why the second device refuses to restore the perception measurement setting.
  • the relevant information about the abnormality is used to indicate at least one of the following: BSS overload; information about BSS load.
  • the relevant information of the exception may include the error code of the exception and specific additional information.
  • Unusual error codes can indicate that the BSS is overloaded.
  • the specific additional information may represent the information of the BSS load.
  • the method further includes: the interface for suspending and/or resuming sensing measurement settings of the SME is called by the upper layer application of the first device, and sends the first information to the second device to indicate that the first device The second device suspends and/or resumes the sensing measurement setting; after the second device suspends and/or resumes the sensing measurement setting, the SME returns the information of suspending and/or resuming the sensing measurement setting to the upper layer application.
  • the SME of the first device may report the information of suspending and/or resuming the perception measurement setting to the upper layer application of the first device after the execution of the second device is finished.
  • the upper layer application of the first device calls the interface of suspending the sensing measurement setting of the SME, and the SME sends the first information to the second device to instruct the second device to suspend the sensing measurement setting; the SME suspends the sensing measurement setting on the second device After that, return the information of suspend-aware measurement setting to the upper-layer application.
  • the upper layer application of the first device invokes the interface of the SME for restoring the sensing measurement setting, and the SME sends the first information to the second device to instruct the second device to restore the sensing measurement setting; the SME restores the sensing measurement setting on the second device. After setting, return the information to restore the perception measurement setting to the upper application.
  • the method further includes: the interface of suspending and/or resuming the sensing measurement setting of the SME is invoked by an upper-layer application of the first device, and returning the suspending and/or resuming sensing measurement setting to the upper-layer application information; the SME sends the first information to the second device to instruct the second device to suspend and/or resume the sensing measurement setting; after the second device suspends and/or resumes the sensing measurement setting, the SME applies to the upper layer Returns information about the success or failure of the execution.
  • the SME of the first device can report the information of suspending and/or resuming the perception measurement setting to the upper layer application of the first device after the interface is called;
  • the application reports execution success or failure information.
  • the upper layer application of the first device calls the interface of the SME to suspend the sensing measurement setting, and the SME returns the information of suspending the sensing measurement setting to the upper layer application;
  • the SME sends the first information to the second device to instruct the second device to suspend the sensing measurement Setting; after the second device suspends the perception measurement setting, the SME returns information about execution success or failure to the upper layer application.
  • the upper-layer application of the first device invokes the interface of the SME to restore the sensing measurement setting, and the SME returns the information of restoring the sensing measurement setting to the upper-layer application; the SME sends the first information to the second device to instruct the second device to suspend And/or restore the perception measurement setting; after the second device restores the perception measurement setting, the SME returns the execution success or failure information to the upper application.
  • the method further includes: the interface for suspending and/or resuming sensing measurement settings of the SME is called by the upper layer application of the first device, and sends the first information to the second device to indicate that the first device The second device suspends and/or resumes the sensing measurement setting; after the second device suspends and/or resumes the sensing measurement setting, the SME returns the information of suspending and/or resuming the sensing measurement setting to the upper layer application, and the execution success or failure information.
  • the interface for suspending and/or resuming sensing measurement settings of the SME is called by the upper layer application of the first device, and sends the first information to the second device to indicate that the first device The second device suspends and/or resumes the sensing measurement setting; after the second device suspends and/or resumes the sensing measurement setting, the SME returns the information of suspending and/or resuming the sensing measurement setting to the upper layer application, and the execution success or failure information.
  • the SME of the first device can report the information of suspending and/or resuming the perception measurement setting, and the information of execution success or failure to the upper layer application of the first device after the execution of the second device is completed.
  • the upper layer application of the first device calls the interface of suspending the sensing measurement setting of the SME, and the SME sends the first information to the second device to instruct the second device to suspend the sensing measurement setting; the SME suspends the sensing measurement setting on the second device After that, return the information of suspending awareness measurement setting and the information of execution success or failure to the upper layer application.
  • the upper layer application of the first device invokes the interface of the SME for restoring the sensing measurement setting, and the SME sends the first information to the second device to instruct the second device to restore the sensing measurement setting; the SME restores the sensing measurement setting on the second device. After setting, return the information of restoring the perception measurement setting to the upper layer application, and the information of execution success or failure.
  • the embodiment of the present application can flexibly set the perception measurement, for example, suspend and/or resume the perception measurement setting, so as to reduce the load of the communication system.
  • Fig. 9 is a schematic flowchart of a communication method 900 according to an embodiment of the present application.
  • the method can optionally be applied to the system shown in Fig. 1, but is not limited thereto.
  • the method includes at least some of the following.
  • the second device receives first information, where the first information is used to indicate the suspension and/or resumption of the perception measurement setting.
  • the first information includes at least one of the following fields:
  • the first perception subclass indicates that the frame carrying the first information is a perception measurement setting pause frame.
  • the first perception measurement identifier includes a perception measurement identifier corresponding to a perception measurement setting that needs to be suspended.
  • the first perception measurement identifier list includes multiple perception measurement identifiers corresponding to multiple perception measurement settings that need to be suspended, and different perception measurement identifiers correspond to different perception measurement settings.
  • the first reason includes a reason for suspending the perception measurement setting.
  • the reason for setting the pause awareness measurement includes at least one of the following:
  • the method further includes:
  • the second device suspends its own perception measurement settings based on the first reason.
  • the method further includes:
  • the second device stops the timer for detecting expiration while suspending its own perception measurement setup.
  • the second device is a sensory response device
  • the timer is used to detect that the sensory response device does not receive a sensory measurement instance initiated by the sensory initiating device after a first period of time, and automatically end the sensory measurement Perceptual measurement settings for the instance.
  • the second device is a sensing initiating device
  • the timer is used to detect that the sensing responding device does not participate in the sensing measurement instance initiated by the sensing initiating device after a second period of time elapses, and automatically end the sensing measurement Perceptual measurement settings for the instance.
  • the first information includes at least one of the following fields:
  • the second perception subclass indicates that the frame carrying the first information is a perception measurement setting recovery request frame.
  • the second perception measurement identifier includes a perception measurement identifier of a perception measurement setting that needs to be restored.
  • the second perception measurement identifier list includes a plurality of perception measurement identifiers of the perception measurement settings that need to be restored.
  • the method further includes:
  • the second device sends second information, and the second information is used to respond to the first information.
  • the second information includes at least one of the following fields:
  • the third perception subclass indicates that the frame carrying the second information is a perception measurement setting recovery response frame.
  • the second reason includes a reason for refusing to restore the measurement setting.
  • the reason for refusing to restore the measurement setting includes at least one of the following:
  • the perception measurement settings that need to be restored have been terminated by the perception initiating device and cannot be restored;
  • the second information may further include a field for indicating the fourth perception subclass.
  • the fourth perception subclass may indicate that the frame carrying the second information is a perception measurement setting pause response frame.
  • Perception Measurement Setup Pause frames can be action frames or no-acknowledgement action frames. If the sensory measurement setting pause frame is an action frame, then the sensory measurement setting pause response frame may be an Ack frame; if the sensory measurement setting pause frame is a non-confirmation action frame, then the sensory measurement setting pause response frame may be a single response frame.
  • the method further includes: based on the first information, the second device restores its own suspended perception measurement setting.
  • the method further includes: when the second device restores its own suspended perception measurement setting, restarting the timer for detecting expiration.
  • Embodiments of the present application may provide a method for managing measurement settings in WLAN perception, which may include the following situations:
  • a sensing initiating device and/or a sensing responding device may suspend one or more measurement settings.
  • the expected duration of the suspension may be indicated, and optionally the reason for the suspension of the measurement setup may also be indicated.
  • the timer used to detect expiration is stopped on pause.
  • the sensing initiating device and/or the sensing responding device may request to resume one or more suspended measurement settings, and the peer device may reject the request. Restart the timer used to detect expiration on resume.
  • the method for managing measurement settings in this embodiment of the present application may include suspending and/or resuming measurement settings, which may specifically include the following:
  • the Site Management Entity (SME) in the site provides the following interfaces for its own upper-layer applications to manage the WLAN awareness process:
  • the upper layer application of the perception initiating device suspends the perception measurement because the upper layer application is switched to the background, for example, calls its internal SME pause measurement setting implemented by the driver program Interface that instructs one or more sensory-responsive devices to suspend measurement setup for gesture recognition.
  • SME instructs MLME to generate a measurement setting pause request frame by invoking the measurement setting pause request primitive provided by the MAC sublayer management entity (MAC sublayer management entity, MLME), and sends the request to one or more Sense Response Devices.
  • the sensing response device reports the frame to its own MLME through the physical layer interface.
  • the MLME of the sensing response device reports the measurement setting suspension information to its SME through the measurement setting suspension notification primitive.
  • the SME of the Sense Response Device processes this information and instructs the MLME to generate a Measurement Setup Suspend Response frame and send this response over the physical layer interface by invoking the Measurement Setup Suspend Response primitive provided by the MLME.
  • the sensing initiating device After receiving the measurement setting pause response frame, the sensing initiating device reports the frame to its own MLME through the physical layer interface.
  • the MLME of the sensing initiating device reports the measurement setting suspension response information to its SME through the measurement setting suspension confirmation primitive.
  • the SME that perceives the initiating device returns execution success or failure to the upper layer application (option 1).
  • the upper-layer application of the sensing initiating device invokes the SME interface
  • its SME immediately returns execution success or failure, and reports execution success or failure to the upper-layer application after the SME is executed (option 2).
  • the SME of the sensing initiating device completes the execution, it returns execution success or failure to the upper-layer application, and reports the execution success or failure to the upper-layer application (option 3).
  • the "pause measurement setting return” in Fig. 10a may contain at least one of the actual operation execution success or failure, failure reason code and more specific reason information. In the case of success, generally only an indication of success is required.
  • the "pause measurement setting return” in Figure 10a can include the success or failure of the interface call; the "report execution status” can include at least one of the success or failure of the actual operation execution, the reason code of the failure, and more specific reason information .
  • "pause measurement setup return” in Fig. 10b may contain actual operation execution success or failure.
  • the "report execution status" may include at least one of the actual operation execution success or failure, failure reason code and more specific reason information.
  • the upper-layer application may indicate through the interface for suspending the measurement setting: at least one of a measurement setting identifier (or called a perception measurement setting identifier), a list of measurement setting identifiers, and an expected pause duration.
  • a measurement setting identifier or called a perception measurement setting identifier
  • the SME can indicate at least one of the following to the upper layer application through the interface for reporting the execution status: operation type, operation status code, measurement setup ID, failure reason code, exception error code and exception related information.
  • operation type may include at least one of the following: establish measurement settings, end measurement settings, suspend measurement settings, resume measurement settings, and report abnormalities.
  • an operation's status code can indicate success or failure.
  • the sensing response device can also request to suspend the measurement setting, and the SME of the sensing initiating device reports the execution status to the upper layer application (the opposite end requests to suspend the measurement setting).
  • the SME of the sensing response device instructs the MLME to generate a measurement setting pause request frame by invoking the measurement setting pause request primitive provided by the MLME, and sends the request to the sensing initiating device through a physical layer interface.
  • the sensing initiating device reports the frame to its own MLME through the physical layer interface.
  • the MLME of the sensing initiating device reports the measurement setting suspension request information to its SME through the measurement setting suspension request notification primitive.
  • the SME of the sensing initiating device processes the information and reports to the upper layer application that the one or more measurement settings of the sensing responding device have been suspended.
  • the SME of the sensing initiating device also instructs the MLME to generate a measurement setting pause response frame and send the frame through the physical layer interface by invoking the measurement setting pause response primitive provided by the MLME.
  • the sensing response device reports the frame to its own MLME through the physical layer interface.
  • the MLME of the sensing response device reports the measurement setting suspension response information to its SME through the measurement setting suspension confirmation primitive.
  • the upper-layer application (such as a gesture recognition application) of the sensing initiating device restores the sensing measurement because the upper-layer application switches back to the foreground from the background, for example, calls its internal SME recovery measurement implemented by the driver An interface for settings that instructs one or more sensory-responsive devices to restore measurement settings for gesture recognition.
  • the SME instructs the MLME to generate a measurement setting recovery request frame by invoking the measurement setting recovery request primitive provided by the MLME, and sends the request to one or more sensing response devices through a physical layer interface.
  • the sensing response device reports the frame to its own MLME through the physical layer interface.
  • the MLME of the sensing response device reports the measurement setting recovery information to its SME through the measurement setting recovery notification primitive.
  • the SME of the Sense Response Device processes this information and instructs the MLME to generate a Measurement Setup Resume Response frame and send it over the physical layer interface by invoking the Measurement Setup Resume Response primitive provided by the MLME.
  • the sensing initiating device After receiving the measurement setting recovery response frame, the sensing initiating device reports the frame to its own MLME through the physical layer interface.
  • the MLME of the perception initiating device reports the measurement setting recovery response information to its SME through the measurement setting recovery confirmation primitive.
  • the SME that perceives the initiating device returns execution success or failure to the upper layer application (option 1).
  • the SME returns immediately after the upper-layer application of the sensing initiating device invokes the SME interface, and reports execution success or failure to the upper-layer application after the SME is executed (option 2).
  • the SME of the sensing initiating device completes the execution, it returns execution success or failure to the upper-layer application, and reports the execution success or failure to the upper-layer application (option 3).
  • "resume measurement setting return” in Fig. 12a may contain at least one of actual operation execution success or failure, failure reason code and more specific reason information. In the case of success, generally only an indication of success is required.
  • the "Resume Measurement Setting Return” in Figure 12a can include the success or failure of the interface call; the "Report Execution Status” can include at least one of the success or failure of the actual operation execution, the reason code of the failure, and more specific reason information .
  • the "Resume Measurement Setting Return” in Figure 12b may include the success or failure of the actual operation execution; one.
  • the upper layer application may indicate: a measurement setting identifier (or called a perception measurement setting identifier) and/or a list of measurement setting identifiers.
  • the sensing response device can also request to restore the measurement settings, and the SME of the sensing initiating device reports the execution status to the upper layer application (the peer end requests to restore the measurement settings).
  • the SME of the sensing response device instructs the MLME to generate a measurement setting restoration request frame by invoking the measurement setting restoration request primitive provided by the MLME and sends the request to the sensing initiation device through a physical layer interface.
  • the sensing initiating device After receiving the measurement setting recovery request frame, the sensing initiating device reports the frame to its own MLME through the physical layer interface.
  • the MLME of the sensing initiating device reports the measurement setting recovery request information to its SME through the measurement setting recovery request notification primitive.
  • the SME of the sensing initiating device processes the information and reports to the upper layer application that the one or more measurement settings of the sensing responding device have been restored.
  • the SME of the sensing initiating device also instructs the MLME to generate a measurement setting recovery response frame and send the frame through the physical layer interface by invoking the measurement setting recovery response primitive provided by the MLME.
  • the sensing response device reports the frame to its own MLME through the physical layer interface.
  • the MLME of the sensing response device reports the measurement setting recovery response information to its SME through the measurement setting recovery confirmation primitive.
  • the AP can judge the BSS load situation by measuring indicators such as channel utilization rate and available access time.
  • the BSS load may be relatively high.
  • channel utilization may include the ratio of channel busy time to total estimated time.
  • a value from 0-255 is used to linearly represent a ratio from 0-100% (the percentage of time, linearly scaled with 255 representing 100%, that the AP sensed the medium was busy).
  • the available admission time may include the remaining amount of medium time available via explicit admission control.
  • the AP can also calculate perception occupancy rate (using 0-M linear representation 0-100%), ranging occupancy rate, perception and ranging occupancy rate, etc. to assist in decision-making and processing of perception when the processing load is high.
  • the perceived occupancy rate may include the ratio of the time perceived to be occupied to the total time measured.
  • the ranging occupancy rate may include a ratio of the time occupied by the ranging to the total time for measuring.
  • the sensing and ranging occupancy rate may include a ratio of time occupied by sensing and ranging to the total measuring time.
  • the perception initiating device (such as AP STA) judges that the BSS load is high, it indicates at least one of the following to the upper layer application through the interface for reporting the execution status: measurement setting identification, error code (specifically BSS overload), BSS load information (such as channel utilization, available admission time, perceived occupancy, ranging occupancy, and perceived and ranging occupancy).
  • error code specifically BSS overload
  • BSS load information such as channel utilization, available admission time, perceived occupancy, ranging occupancy, and perceived and ranging occupancy.
  • the upper-layer application can automatically confirm the suspension measurement setting, for example, the upper-layer application instructs the sensing initiation device and all sensing response devices involved in the sensing setting to suspend the sensing setting through the interface of suspending the measurement setting.
  • the upper layer application may also prompt the user to confirm whether to suspend the measurement setting, such as suspending the aforementioned perception setting.
  • the upper-layer application can automatically confirm the recovery of the measurement settings. For example, through the interface of restoring the measurement settings, indicate the sensing initiation device and all sensing devices involved in the sensing settings. The responding device restores the awareness setting.
  • the upper-layer application may also prompt the user to confirm whether to restore the measurement setting, for example, restore the aforementioned perception setting.
  • a sensing initiating device and/or a sensing responding device may suspend and resume one or more measurement settings.
  • Possible application scenarios for suspending and resuming measurement settings for example, when the upper-layer application switches to the background, it instructs to suspend the corresponding measurement settings, and when the upper-layer application switches back to the foreground, it instructs to resume the corresponding measurement settings.
  • the perception initiating device When the perception initiating device suspends the measurement setting, it can optionally indicate the expected duration of the suspension, and optionally, it can also indicate the reason for suspending the measurement setting (for example, it is represented by a reason code, and the frame format is shown in Figure 14 and Figure 15 ), including but not limited to: the suspension indicated by the upper layer application; there are more buffered downlink data to be sent, and the perception measurement is suspended.
  • the sensory response device When the sensory response device suspends the measurement setting, it can optionally indicate the expected duration of the suspension, and optionally, it can also indicate the reason for suspending the measurement setting (for example, it is represented by a reason code, and the frame format is shown in Figure 14 and Figure 15 ), including but not limited to: its own power is low, and it suspends participation in sensing measurement in order to save power; it has more buffered uplink data to send, and suspends participation in sensing measurement; it will turn on point-to-point communication (P2P), and suspend participation in measurement.
  • P2P point-to-point communication
  • the sensing response device When suspending the measurement setting, the sensing response device should also stop the timer for detecting expiration.
  • the timer is used to detect how long the sensing responding device has not received the measurement instance initiated by the sensing initiating device. The sensing responding device will automatically end the measurement setting.
  • the sensing initiating device should also stop the timer used to detect expiration when suspending the measurement setting.
  • the timer is used to detect how long the sensing responding device does not participate in the measurement instance initiated by the sensing initiating device. The sensing initiating device will automatically end the measurement. set up.
  • the Sensing Measurement Setup Suspend frame (Sensing Measurement Setup Suspend frame) is used to suspend a certain measurement setup.
  • the Sensing Measurement Setup Suspend frame (Sensing Measurement Setup Suspend frame) is used to indicate the suspension of one or more measurement setups.
  • An embodiment such as Fig. 14 or Fig. 15 provides a sensing action frame (Sensing Action frame): a new action frame (Action frame) or no confirmation action frame (Action No Ack), and the action category (Category) is 4 representations
  • This frame is a public action frame (Public Action frame), and the value of the public action subclass (Public Acton Field) is 51, indicating that the frame is a perception action frame (you can use any value within the range of 46 to 255 to indicate that the frame is a perception action frame)
  • the Sensing Subtype value is 6 (any value within the range of 0 to 255 can be used) to indicate the Sensing Measurement Setup Suspend frame (Sensing Measurement Setup Suspend frame).
  • the perception measurement setting pause frame is an action frame
  • the peer end returns an Ack frame to indicate confirmation
  • the perception measurement setting pause frame is a non-confirmation action frame, and the peer end needs to return a separate response frame.
  • Sensing subtype (SENS Subtype) field 0 means proxy request frame (Sensing By Proxy Request frame); 1 means proxy response frame (Sensing By Proxy Response frame); 2 means sensing measurement setup request frame (Sensing Measurement Setup Request frame); 3 means Sensing Measurement Setup Response frame; 4 means Sensing Measurement Setup Termination frame; 5 means Sensing Measurement Setup Termination Request frame; 6 means sensing Sensing Measurement Setup Suspend frame; 7 means Sensing Measurement Setup Resume Request frame; 8 means Sensing Measurement Setup Resume Response frame; 9 ⁇ 15 reserved .
  • the value used in this field is only an exemplary introduction, and it can also be set to other values, as long as it is ensured that the value corresponding to each perception subtype is different from the value of other perception subtypes.
  • Suspend Time Indicates the estimated suspend time. Exemplarily, the unit is 1 minute (minute), and 0 is a reserved value.
  • Reason Code Indicates the reason for suspending the measurement setup. 0 means that the self-power is low, and the participation in the sensing measurement is suspended in order to save power; 1 means that the self has more buffered uplink data to be sent, and the participation in the sensing measurement is suspended; 2 means that the self will turn on point-to-point communication (P2P), and the participation in the measurement is suspended; 3 Indicates the suspension of the upper layer application instruction; 4 ⁇ 255 are reserved.
  • the value used in this field is only an exemplary introduction, and it can also be set to other values, as long as the value corresponding to each reason code is different from the value of other reason codes.
  • Measurement Setup ID (Measurement Setup ID) field and/or Measurement Setup ID List (Measurement Setup List ID): Indicates the ID of the measurement setup and/or the list of IDs of the measurement setup. For example, in the frame shown in FIG. 14 , a byte may be used to indicate a measurement setting identifier that needs to be suspended.
  • FIG. 15 includes a list of measurement setting identifiers that need to be suspended, and the length of the measurement setting identifier list is variable.
  • the measurement setting identification list includes N measurement setting identifications, which are: measurement setting identification 1, measurement setting identification 2, ... measurement setting identification N.
  • the sensing initiating device and/or the sensing responding device may request to restore the measurement setting (a sensing setting restoration request frame format is shown in Figure 16 and Figure 17).
  • the sense-response device shall also restart the aforementioned timer for detecting expiration when restoring the measurement settings.
  • the Sensing Measurement Setup Resume Request frame (Sensing Measurement Setup Resume Request frame) is used to resume a certain measurement setup (eg, indicated by the measurement setup identifier).
  • the Sensing Measurement Setup Resume Request frame (Sensing Measurement Setup Resume Request frame) is used to indicate to resume one or more measurement setups (for example, indicated by the measurement setup identification list, the measurement setup identification list includes N measurement setups The identifications are respectively: measurement setting identification 1, measurement setting identification 2, ... measurement setting identification N).
  • the same fields in the sensory measurement setting resume request frame and the sensory measurement setting pause frame may have the same meanings, which will not be repeated here. The difference is that in this example, a Sensing Subtype value of 7 instructs the Sensing Measurement to set a pause frame.
  • the peer device may accept the perception setting indicated in the recovery request, optionally, it may be indicated by an Ack frame, or may be indicated by a perception setting recovery response frame, as shown in FIG. 18 .
  • the same fields in the sensory measurement setting resume response frame, the sensory measurement setting pause frame and the sensory measurement setting resume request frame may have the same meanings, which will not be repeated here. The difference is that in this example, a Sensing Subtype value of 8 instructs the Sensing Measurement to set a pause frame.
  • the peer device may also refuse to restore, and optionally, may indicate the reason for the rejection (for example, represented by the reason code in Figure 19), including but not limited to: the sensing measurement setting has been ended by the sensing initiating device and cannot be restored; There is already another device taking part in the measurement instead and this device is no longer required.
  • the reason for the rejection for example, represented by the reason code in Figure 19
  • Reason Code Indicates the reason for suspending the measurement setup. 0 means that the sensing measurement setting has been terminated by the sensing initiator device and cannot be restored; 1 means that other devices have participated in the measurement as a substitute, and this device is no longer needed; 2 ⁇ 255 are reserved.
  • the value used in this field is only an exemplary introduction, and it can also be set to other values, as long as the value corresponding to each reason code is different from the value of other reason codes.
  • the embodiment of the present application provides a more flexible method for managing measurement settings, which can reduce the load of the system.
  • Fig. 20 is a schematic block diagram of a first device 2000 according to an embodiment of the present application.
  • the first device 2000 may include:
  • the sending unit 2010 is configured to send first information, where the first information is used to indicate the suspension and/or resumption of the perception measurement setting.
  • the first information includes at least one of the following fields:
  • the first perception subclass indicates that the frame carrying the first information is a perception measurement setting pause frame.
  • the first perception measurement identifier includes a perception measurement identifier corresponding to a perception measurement setting that needs to be suspended.
  • the first perception measurement identifier list includes multiple perception measurement identifiers corresponding to multiple perception measurement settings that need to be suspended, and different perception measurement identifiers correspond to different perception measurement settings.
  • the first reason includes a reason for suspending the perception measurement setting.
  • the reason for setting the pause awareness measurement includes at least one of the following:
  • the device further includes:
  • the first processing unit is configured to suspend its own perception measurement setting based on the first reason.
  • the first processing unit is further configured to stop the timer for detecting expiration when suspending its own perception measurement setting.
  • the first device is a sensory response device
  • the timer is used to detect that the sensory response device does not receive a sensory measurement instance initiated by the sensory initiating device after a first period of time, and automatically end the sensory measurement Perceptual measurement settings for the instance.
  • the first device is a sensing initiating device
  • the timer is used to detect that the sensing responding device continues to not participate in the sensing measurement instance initiated by the sensing initiating device after a second length of time, and automatically end the sensing measurement Perceptual measurement settings for the instance.
  • the suspension indicated by the upper-layer application is a suspension-aware measurement setting indicated by the upper-layer application of the first device based on a basic service set (BSS) load higher than a first set threshold.
  • BSS basic service set
  • the first information includes at least one of the following fields:
  • the second perception subclass indicates that the frame carrying the first information is a perception measurement setting recovery request frame.
  • the second perception measurement identifier includes a perception measurement identifier of a perception measurement setting that needs to be restored.
  • the second perception measurement identifier list includes a plurality of perception measurement identifiers of the perception measurement settings that need to be restored.
  • the device further includes:
  • the receiving unit is configured to receive second information, and the second information is used to respond to the first information.
  • the second information includes at least one of the following fields:
  • the third perception subclass indicates that the frame carrying the second information is a perception measurement setting recovery response frame.
  • the second reason includes a reason for refusing to restore the measurement setting.
  • the reason for refusing to restore the measurement setting includes at least one of the following:
  • the perception measurement settings that need to be restored have been terminated by the perception initiating device and cannot be restored;
  • the device further includes: a second processing unit, configured to restore the suspended perception measurement setting based on the restoration indicated by the upper layer application.
  • the restoration indicated by the upper-layer application is the restoration-aware measurement setting indicated by the upper-layer application of the first device based on the BSS load being lower than the second set threshold.
  • the BSS load includes at least one of the following: channel utilization; available admission time; sensing occupancy; ranging occupancy; sensing and ranging occupancy.
  • the second processing unit is further configured to restart the expired detection timer in the case of resuming the suspended perception measurement setting.
  • the SME of the first device provides at least one of the following interfaces for the upper layer application of the first device:
  • the interface for reporting the execution state is used to report at least one of the following to the upper layer application: operation type; operation status code; measurement setting identification; measurement identification list identification; failure reason code; exception related information.
  • the operation type includes at least one of the following: establishing measurement setting; ending measurement setting; suspending measurement setting; resuming measurement setting;
  • the relevant information about the abnormality is used to indicate at least one of the following: BSS overload; information about BSS load.
  • the device further includes: SME.
  • the SME is configured to send the first information to the second device when the interface for suspending and/or resuming sensing measurement settings of the SME is called by an upper-layer application of the first device, so as to Instructing the second device to suspend and/or resume the perception measurement setting; after the second device suspends and/or resumes the perception measurement setting, returns the information of suspending and/or resuming the perception measurement setting to the upper layer application.
  • the SME is configured to return the suspend and/or resume awareness to the upper-layer application when the interface of the SME suspend and/or resume awareness measurement setting is called by the upper-layer application of the first device Information about measurement settings; sending the first information to a second device to instruct the second device to suspend and/or resume perception measurement settings; after the second device suspends and/or resumes perception measurement settings, return execution to the upper layer application Success or failure information.
  • the interface used by the SME to suspend and/or resume the sensing measurement setting of the SME is invoked by the upper layer application of the first device, and sends the first information to the second device to indicate that the second The device suspends and/or resumes the perception measurement setting; after the second device suspends and/or resumes the perception measurement setting, returns information about suspending and/or resuming the perception measurement setting, and information about execution success or failure to the upper layer application.
  • the first device 2000 in the embodiment of the present application can implement the corresponding function of the first device in the foregoing method 800 embodiment.
  • functions, implementations and beneficial effects corresponding to each module (submodule, unit or component, etc.) in the first device 2000 refer to the corresponding descriptions in the above method embodiments, and details are not repeated here.
  • the functions described by the modules (submodules, units or components, etc.) in the first device 2000 of the embodiment of the application can be realized by different modules (submodules, units or components, etc.), or by the same A module (submodule, unit or component, etc.) implementation.
  • Fig. 21 is a schematic block diagram of a second device 2100 according to an embodiment of the present application.
  • the second device 2100 may include: a receiving unit 2110, configured to receive first information, where the first information is used to indicate the suspension and/or resumption of the perception measurement setting.
  • the first information includes at least one of the following fields:
  • the first perception subclass indicates that the frame carrying the first information is a perception measurement setting pause frame.
  • the first perception measurement identifier includes a perception measurement identifier corresponding to a perception measurement setting that needs to be suspended.
  • the first perception measurement identifier list includes multiple perception measurement identifiers corresponding to multiple perception measurement settings that need to be suspended, and different perception measurement identifiers correspond to different perception measurement settings.
  • the first reason includes a reason for suspending the perception measurement setting.
  • the reason for setting the pause awareness measurement includes at least one of the following:
  • the device further includes: a first processing unit, configured to suspend its own perception measurement setting based on the first reason.
  • the first processing unit is further configured to stop the timer for detecting expiration when suspending its own perception measurement setting.
  • the second device is a sensory response device
  • the timer is used to detect that the sensory response device does not receive a sensory measurement instance initiated by the sensory initiating device after a first period of time, and automatically end the sensory measurement Perceptual measurement settings for the instance.
  • the second device is a sensing initiating device
  • the timer is used to detect that the sensing responding device does not participate in the sensing measurement instance initiated by the sensing initiating device after a second period of time elapses, and automatically end the sensing measurement Perceptual measurement settings for the instance.
  • the first information includes at least one of the following fields:
  • the second perception subclass indicates that the frame carrying the first information is a perception measurement setting recovery request frame.
  • the second perception measurement identifier includes a perception measurement identifier of a perception measurement setting that needs to be restored.
  • the second perception measurement identifier list includes a plurality of perception measurement identifiers of perception measurement settings that need to be restored.
  • the device further includes:
  • a sending unit configured to send second information, where the second information is used to respond to the first information.
  • the second information includes at least one of the following fields:
  • the third perception subclass indicates that the frame carrying the second information is a perception measurement setting recovery response frame.
  • the second reason includes a reason for refusing to restore the measurement setting.
  • the reason for refusing to restore the measurement setting includes at least one of the following:
  • the perception measurement settings that need to be restored have been terminated by the perception initiating device and cannot be restored;
  • the device further includes:
  • the second processing unit is configured to resume the suspended perception measurement setting based on the first information.
  • the second processing unit is further configured to restart the expired detection timer in the case of resuming the suspended perception measurement setting.
  • the second device 2100 in the embodiment of the present application can implement the corresponding function of the second device in the foregoing method 900 embodiment.
  • each module (submodule, unit or component, etc.) in the second device 2100 refers to the corresponding description in the above method embodiment, and details are not repeated here.
  • the functions described by the modules (submodules, units or components, etc.) in the second device 2100 of the embodiment of the application can be realized by different modules (submodules, units or components, etc.), or by the same A module (submodule, unit or component, etc.) implementation.
  • Fig. 22 is a schematic structural diagram of a communication device 2200 according to an embodiment of the present application.
  • the communication device 2200 includes a processor 2210, and the processor 2210 can invoke and run a computer program from a memory, so that the communication device 2200 implements the method in the embodiment of the present application.
  • the communication device 2200 may further include a memory 2220 .
  • the processor 2210 may call and run a computer program from the memory 2220, so that the communication device 2200 implements the method in the embodiment of the present application.
  • the memory 2220 may be an independent device independent of the processor 2210 , or may be integrated in the processor 2210 .
  • the communication device 2200 may further include a transceiver 2230, and the processor 2210 may control the transceiver 2230 to communicate with other devices, specifically, to send information or data to other devices, or to receive information from other devices information or data sent.
  • the transceiver 2230 may include a transmitter and a receiver.
  • the transceiver 2230 may further include an antenna, and the number of antennas may be one or more.
  • the communication device 2200 may be the second device in the embodiment of the present application, and the communication device 2200 may implement the corresponding process implemented by the second device in each method of the embodiment of the present application, for the sake of brevity , which will not be repeated here.
  • the communication device 2200 may be the first device in the embodiment of the present application, and the communication device 2200 may implement the corresponding processes implemented by the first device in each method of the embodiment of the present application, for the sake of brevity , which will not be repeated here.
  • FIG. 23 is a schematic structural diagram of a chip 2300 according to an embodiment of the present application.
  • the chip 2300 includes a processor 2310, and the processor 2310 can call and run a computer program from the memory, so as to implement the method in the embodiment of the present application.
  • the chip 2300 may further include a memory 2320 .
  • the processor 2310 may invoke and run a computer program from the memory 2320, so as to implement the method executed by the first device or the second device in the embodiment of the present application.
  • the memory 2320 may be an independent device independent of the processor 2310 , or may be integrated in the processor 2310 .
  • the chip 2300 may further include an input interface 2330 .
  • the processor 2310 can control the input interface 2330 to communicate with other devices or chips, specifically, can obtain information or data sent by other devices or chips.
  • the chip 2300 may further include an output interface 2340 .
  • the processor 2310 can control the output interface 2340 to communicate with other devices or chips, specifically, can output information or data to other devices or chips.
  • the chip can be applied to the second device in the embodiment of the present application, and the chip can implement the corresponding process implemented by the second device in each method of the embodiment of the present application.
  • the chip can be applied to the second device in the embodiment of the present application, and the chip can implement the corresponding process implemented by the second device in each method of the embodiment of the present application.
  • the chip can be applied to the first device in the embodiment of the present application, and the chip can implement the corresponding processes implemented by the first device in each method of the embodiment of the present application. For the sake of brevity, the This will not be repeated here.
  • the chips applied to the second device and the first device may be the same chip or different chips.
  • the chip mentioned in the embodiment of the present application may also be called a system-on-chip, a system-on-chip, a system-on-a-chip, or a system-on-a-chip.
  • the processor mentioned above can be a general-purpose processor, a digital signal processor (DSP), an off-the-shelf programmable gate array (FPGA), an application specific integrated circuit (ASIC) or Other programmable logic devices, transistor logic devices, discrete hardware components, etc.
  • DSP digital signal processor
  • FPGA off-the-shelf programmable gate array
  • ASIC application specific integrated circuit
  • the general-purpose processor mentioned above may be a microprocessor or any conventional processor or the like.
  • the aforementioned memories may be volatile memories or nonvolatile memories, or may include both volatile and nonvolatile memories.
  • the non-volatile memory can be read-only memory (read-only memory, ROM), programmable read-only memory (programmable ROM, PROM), erasable programmable read-only memory (erasable PROM, EPROM), electrically programmable Erases programmable read-only memory (electrically EPROM, EEPROM) or flash memory.
  • the volatile memory may be random access memory (RAM).
  • the memory in the embodiment of the present application may also be a static random access memory (static RAM, SRAM), a dynamic random access memory (dynamic RAM, DRAM), Synchronous dynamic random access memory (synchronous DRAM, SDRAM), double data rate synchronous dynamic random access memory (double data rate SDRAM, DDR SDRAM), enhanced synchronous dynamic random access memory (enhanced SDRAM, ESDRAM), synchronous connection Dynamic random access memory (synch link DRAM, SLDRAM) and direct memory bus random access memory (Direct Rambus RAM, DR RAM), etc. That is, the memory in the embodiments of the present application is intended to include, but not be limited to, these and any other suitable types of memory.
  • Fig. 24 is a schematic block diagram of a communication system 2400 according to an embodiment of the present application.
  • the communication system 2400 includes a first device 2410 and a second device 2420 .
  • the first device 2410 is configured to send first information, where the first information is used to indicate the suspension and/or resumption of the perception measurement setting.
  • the second device 2420 is configured to receive first information, where the first information is used to indicate the suspension and/or resumption of the perception measurement setting.
  • the first device 2410 can be used to realize the corresponding function realized by the first device in the above method
  • the second device 2420 can be used to realize the corresponding function realized by the second device in the above method.
  • details are not repeated here.
  • all or part of them may be implemented by software, hardware, firmware or any combination thereof.
  • software When implemented using software, it may be implemented in whole or in part in the form of a computer program product.
  • the computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on the computer, the processes or functions according to the embodiments of the present application will be generated in whole or in part.
  • the computer can be a general purpose computer, a special purpose computer, a computer network, or other programmable device.
  • the computer instructions may be stored in or transmitted from one computer-readable storage medium to another computer-readable storage medium, e.g.
  • the computer-readable storage medium may be any available medium that can be accessed by a computer, or a data storage device such as a server or a data center integrated with one or more available media.
  • the available medium may be a magnetic medium (such as a floppy disk, a hard disk, or a magnetic tape), an optical medium (such as a DVD), or a semiconductor medium (such as a solid state disk (Solid State Disk, SSD)), etc.
  • sequence numbers of the above-mentioned processes do not mean the order of execution, and the execution order of the processes should be determined by their functions and internal logic, and should not be used in the embodiments of the present application.
  • the implementation process constitutes any limitation.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

La présente demande concerne un procédé de communication et un dispositif. Le procédé de communication comprend les étapes suivantes dans lesquelles : un premier dispositif envoie des premières informations, les premières informations étant utilisées pour indiquer la suspension et/ou la reprise du réglage de mesure sensible. Selon des modes de réalisation de la présente invention, un réglage de mesure sensible peut être réalisé de manière flexible et la charge d'un système de communication est réduite.
PCT/CN2021/132901 2021-11-24 2021-11-24 Procédé de communication et dispositif Ceased WO2023092350A1 (fr)

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US12149971B1 (en) 2023-10-29 2024-11-19 Tp-Link Corporation Pte. Ltd. Wireless communication method and apparatus thereof

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