Perception measurement method, device, equipment, chip and storage medium

Abstract

The invention discloses a sensing measurement method, device and equipment, a chip and a storage medium, and belongs to the field of sensing measurement. The method comprises the steps that a synchronization field is sent in parallel mode cooperative single-base measurement, the synchronization field is used for triggering a sensing response device to send a single-base PPDU, and the timing problem existing in parallel mode cooperative single-base sensing measurement is solved.

Description

Perception measurement method, device, equipment, chip and storage medium Technical Field

[0001] The present application relates to the field of perception measurement, and in particular to a perception measurement method, apparatus, device, chip, and storage medium. Background Art

[0002] Wireless Local Area Networks (WLAN) sensing refers to a technology that senses people or objects in an environment by measuring changes in the scattering and / or reflection of WLAN signals passing through people or objects.

[0003] There are many types of perception. One type of perception is collaborative single-base perception. Collaborative single-base perception exists in two modes. In the parallel mode of collaborative single-base perception, the number of perception measurement devices participating in the perception is greater than one. Each perception response device perceives the environment through a self-sent single-base physical layer protocol data unit (Monostatic PPDU) and a self-received echo (Echo) signal, and then reports a perception measurement report frame to the perception initiator. There is a timing issue when multiple perception response devices report perception measurement report frames.

[0004] Summary of the Invention

[0005] This application provides a perception measurement method, apparatus, device, chip, and storage medium. The technical solution is as follows:

[0006] According to one aspect of the present application, a perception measurement method is provided, which is performed by a perception initiating device. The method includes:

[0007] The synchronization field is sent in the coordinated single-base measurement in parallel mode, and is used to trigger the sensing response device to send a single-base PPDU.

[0008] According to one aspect of the present application, a perception measurement method is provided, which is performed by a perception response device. The method includes:

[0009] The synchronization field is received in the coordinated single-base measurement in parallel mode, and the synchronization field is used to trigger the sensing response device to send a single-base PPDU.

[0010] According to one aspect of the present application, a perception measurement method is provided, which is performed by a perception initiating device. The method includes:

[0011] In a coordinated single-base measurement in a parallel mode, sending a sensing request frame to at least one sensing response device using a first MCS;

[0012] receiving a perception response frame sent by at least one perception response device in a first MCS;

[0013] The first MCS is the MCS specified by the protocol.

[0014] According to one aspect of the present application, a perception measurement method is provided, which is performed by a perception response device. The method includes:

[0015] In a coordinated single-base measurement in a parallel mode, receiving a sensing request frame sent by a sensing initiating device using a first MCS;

[0016] Sending a perception response frame to the perception initiating device using the first MCS;

[0017] The first MCS is the MCS specified by the protocol.

[0018] According to another aspect of the present application, a perception measurement device is provided, which is applied to a perception initiating device. The device includes:

[0019] The sending module is used to send a synchronization field in the collaborative single-base measurement in parallel mode, and the synchronization field is used to trigger the perception response device to send a single-base PPDU.

[0020] According to another aspect of the present application, a perception measurement device is provided, which is applied to a perception response device, and the device includes:

[0021] The receiving module is used to receive a synchronization field in the collaborative single-base measurement in parallel mode, where the synchronization field is used to trigger the perception response device to send a single-base PPDU.

[0022] According to another aspect of the present application, a perception measurement device is provided, which is applied to a perception initiating device. The device includes:

[0023] a sending module, configured to send a sensing request frame to at least one sensing response device using a first MCS in a coordinated single-base measurement in a parallel mode;

[0024] a receiving module, configured to receive a perception response frame sent by at least one perception response device in a first MCS;

[0025] The first MCS is the MCS specified by the protocol.

[0026] According to another aspect of the present application, a perception measurement device is provided, which is applied to a perception response device, and the device includes:

[0027] A receiving module, configured to receive a sensing request frame sent by a sensing initiating device using a first MCS in a coordinated single-base measurement in a parallel mode;

[0028] A sending module, configured to send a perception response frame to the perception initiating device using a first MCS;

[0029] The first MCS is the MCS specified by the protocol.

[0030] According to another aspect of the present application, a perception initiating device is provided, the device comprising:

[0031] processor;

[0032] a transceiver connected to the processor;

[0033] a memory for storing executable instructions for the processor;

[0034] The processor is configured to load the executable instructions to implement the above-mentioned perception measurement method.

[0035] According to another aspect of the present application, a sensory response device is provided, the device comprising:

[0036] processor;

[0037] a transceiver connected to the processor;

[0038] a memory for storing executable instructions for the processor;

[0039] The processor is configured to load the executable instructions to implement the above-mentioned perception measurement method.

[0040] According to another aspect of an embodiment of the present application, a computer-readable storage medium is provided, in which a computer program is stored. The computer program is configured to be executed by a perception measurement device to implement the perception measurement method described in the above aspect.

[0041] According to another aspect of an embodiment of the present application, a chip is provided, which includes a programmable logic circuit and / or program instructions. When a perception measurement device equipped with the chip is running, the chip is used to be executed by the perception measurement device to implement the perception measurement method described in the above aspects.

[0042] According to another aspect of an embodiment of the present application, a computer program product or computer program is provided, wherein the computer program product or computer program includes computer instructions, and the computer instructions are stored in a computer-readable storage medium. A perception measurement device reads and executes the computer instructions from the computer-readable storage medium to implement the perception measurement method described in the above aspect.

[0043] The technical solutions provided by the embodiments of the present application include at least the following beneficial effects:

[0044] The synchronization field is used to trigger the sensing response device to send a single-base PPDU, which solves the timing problem existing in the collaborative single-base sensing measurement in parallel mode. BRIEF DESCRIPTION OF THE DRAWINGS

[0045] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0046] FIG1 is a block diagram of a perception measurement system provided by an exemplary embodiment of the present application;

[0047] FIG2 is a schematic diagram of a millimeter wave sensing type provided by an exemplary embodiment of the present application;

[0048] FIG3 is a schematic diagram of a millimeter wave sensing process provided by an exemplary embodiment of the present application;

[0049] FIG4 is a schematic diagram of an example of a sequential mode of millimeter wave cooperative monostatic sensing measurement provided by an exemplary embodiment of the present application;

[0050] FIG5 is a schematic diagram of an example of a parallel mode of millimeter wave cooperative monostatic sensing measurement provided by an exemplary embodiment of the present application;

[0051] FIG6 is a schematic diagram of a frame format of a DMG perception measurement setting element provided by an exemplary embodiment of the present application;

[0052] FIG7 is a schematic diagram of a beamforming frame format provided by an exemplary embodiment of the present application;

[0053] FIG8 is a schematic diagram of a format of a perception request frame provided by an exemplary embodiment of the present application;

[0054] FIG9 is a schematic diagram of a format of a perception response frame provided by an exemplary embodiment of the present application;

[0055] FIG10 is a schematic diagram of a format of a perception polling frame provided by an exemplary embodiment of the present application;

[0056] FIG11 is a schematic diagram of an EDMG multi-base awareness PPDU provided by an exemplary embodiment of the present application;

[0057] FIG12 is a schematic diagram of a multi-base sensing measurement example provided by an exemplary embodiment of the present application;

[0058] FIG13 is a schematic diagram of an example of collaborative single-base sensing measurement in a parallel mode in the related art provided by an exemplary embodiment of the present application;

[0059] FIG14 is a flow chart of a perception measurement method provided by an exemplary embodiment of the present application;

[0060] FIG15 is a flow chart of a perception measurement method provided by an exemplary embodiment of the present application;

[0061] FIG16 is a schematic diagram of a perception measurement method provided by an exemplary embodiment of the present application;

[0062] FIG17 is a flowchart of a perception measurement method provided by an exemplary embodiment of the present application;

[0063] FIG18 is a flow chart of a perception measurement method provided by an exemplary embodiment of the present application;

[0064] FIG19 is a schematic diagram of a perception measurement method provided by an exemplary embodiment of the present application;

[0065] FIG20 is a schematic diagram of a perception measurement method provided by an exemplary embodiment of the present application;

[0066] FIG21 is a schematic diagram of a perception measurement method provided by an exemplary embodiment of the present application;

[0067] FIG22 is a block diagram of a perception measurement device provided by an exemplary embodiment of the present application;

[0068] FIG23 is a block diagram of a perception measurement device provided by an exemplary embodiment of the present application;

[0069] FIG24 is a block diagram of a perception measurement device provided by an exemplary embodiment of the present application;

[0070] FIG25 is a block diagram of a perception measurement device provided by an exemplary embodiment of the present application;

[0071] FIG26 is a schematic structural diagram of a perception measurement device provided by an exemplary embodiment of the present application. DETAILED DESCRIPTION

[0072] To make the objectives, technical solutions, and advantages of the present application more clear, the embodiments of the present application will be further described in detail below with reference to the accompanying drawings. Exemplary embodiments will be described in detail herein, with examples shown in the accompanying drawings. When the following description refers to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present application. Instead, they are merely examples of devices and methods consistent with certain aspects of the present application, as detailed in the appended claims.

[0073] The terms used in this disclosure are for the purpose of describing specific embodiments only and are not intended to limit the disclosure. As used in this disclosure and the appended claims, the singular forms "a," "an," "the," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and / or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items.

[0074] It should be understood that although the terms first, second, third, etc. may be used in this disclosure to describe various information, such information should not be limited to these terms. These terms are only used to distinguish information of the same type from each other. For example, without departing from the scope of this disclosure, first information may also be referred to as second information, and similarly, second information may also be referred to as first information. Depending on the context, the word "if" as used herein may be interpreted as "at the time of" or "when" or "in response to determining."

[0075] First, some terms involved in the embodiments of this application are introduced as follows:

[0076] WLAN Sensing: This technology detects people and objects in the environment by measuring changes in WLAN signal scattering and / or reflection caused by people and objects. In other words, WLAN sensing uses wireless signals to measure and perceive the surrounding environment, enabling functions such as indoor intrusion, movement, and fall detection, gesture recognition, and spatial 3D image creation.

[0077] Association Identifier (AID): used to identify a terminal after establishing an association with an access point.

[0078] WLAN devices participating in WLAN awareness may have the following roles:

[0079] Sensing Initiator: Also known as the sensing session initiator, sensing initiator, or initiator. A sensing initiator is a device that initiates sensing measurements and wants to obtain sensing results.

[0080] Sensing Responder: Also known as a Sensing Session Responder, Sensing Responder, or Responder. A Sensing Responder is a device that participates in sensing measurements without being the initiating device.

[0081] Sensing Transmitter: Also known as a sensing signal sender, sensing sender, sensing sending device, or transmitter. A sensing signal sender is a device that sends sensing PPDUs.

[0082] Sensing Receiver: Also known as a sensing signal receiver, sensing receiver, sensing receiving device, or receiver. A sensing signal receiver is a device that receives echo signals. Echo signals are the physical layer protocol data units sent by a sensing signal sender that are scattered and / or reflected by people or objects.

[0083] A WLAN terminal may play one or more roles in a perception measurement. For example, a perception initiator can be solely a perception initiator, a perception signal transmitter, a perception signal receiver, or both. These devices are collectively referred to as perception measurement devices.

[0084] Next, the relevant technical background involved in the embodiments of this application is introduced:

[0085] Figure 1 is a block diagram of a perception measurement system provided by an exemplary embodiment of the present application. The perception measurement system includes terminals, terminals and network devices, or access points (APs) and stations (STAs), though this application does not limit this. This application uses the perception measurement system including APs and STAs as an example for illustration.

[0086] In some scenarios, an AP can be referred to as an AP STA, meaning that, in a sense, an AP is also a type of STA. In some scenarios, a STA can be referred to as a non-AP STA. In some embodiments, a STA can include both AP STAs and non-AP STAs.

[0087] Communication in a communication system can be between an AP and a non-AP STA, between a non-AP STA and a non-AP STA, or between a STA and a peer STA. A peer STA refers to a device that communicates with the STA peer. For example, a peer STA may be an AP or a non-AP STA.

[0088] An AP acts as a bridge between wired and wireless networks, connecting wireless network clients and then connecting the wireless network to the Ethernet. An AP device can be a terminal device (such as a mobile phone) or a network device (such as a router) equipped with a Wireless Fidelity (Wi-Fi) chip. It should be understood that the role of a STA in a communication system is not absolute. For example, in some scenarios, a mobile phone is a non-AP STA when connected to a router, but acts as an AP when serving as a hotspot for other phones.

[0089] APs and non-AP STAs can be devices used in the Internet of Vehicles, IoT nodes and sensors in the Internet of Things (IoT), smart cameras, smart remote controls, smart water and electricity meters in smart homes, and sensors in smart cities.

[0090] In some embodiments, non-AP STAs may support, but are not limited to, 802.11bf. Non-AP STAs may also support various current and future 802.11 family WLAN standards, such as 802.11ax, 802.11ac, 802.11n, 802.11g, 802.11b, and 802.11a.

[0091] In some embodiments, the AP may be a device supporting 802.11bf. The AP may also be a device supporting various current and future 802.11 family WLAN standards, such as 802.11ax, 802.11ac, 802.11n, 802.11g, 802.11b, and 802.11a.

[0092] In the embodiment of the present application, the STA may be a mobile phone, tablet computer, computer, virtual reality (VR) device, augmented reality (AR) device, wireless device in industrial control, set-top box, wireless device in self-driving, in-vehicle communication device, wireless device in remote medical care, wireless device in smart grid, wireless device in transportation safety, wireless device in smart city, wireless device in smart home, wireless communication chip / ASIC / SOC / etc. that supports WLAN / Wi-Fi technology.

[0093] WLAN technology can support frequency bands including but not limited to: low frequency bands (2.4GHz, 5GHz, 6GHz) and high frequency bands (60GHz).

[0094] One or more links exist between a station and an access point.

[0095] In some embodiments, the stations and access points support multi-band communications, for example, communicating simultaneously on the 2.4 GHz, 5 GHz, 6 GHz, and 60 GHz bands, or communicating simultaneously on different channels in the same band (or different bands), thereby improving the communication throughput and / or reliability between devices. Such devices are generally referred to as multi-band devices, or multi-link devices (MLD), and are sometimes also referred to as multi-link entities or multi-band entities. A multi-link device can be an access point device or a station device. If the multi-link device is an access point device, the multi-link device includes one or more APs; if the multi-link device is a station device, the multi-link device includes one or more non-AP STAs. A multi-link device including one or more APs is called an AP, and a multi-link device including one or more non-AP STAs is called a Non-AP. In the application embodiments, a Non-AP can be called a STA.

[0096] In an embodiment of the present application, the AP may include multiple APs, the Non-AP may include multiple STAs, multiple links may be formed between the APs in the AP and the STAs in the Non-AP, and data communication may be performed between the APs in the AP and the corresponding STAs in the Non-AP through the corresponding links.

[0097] An AP is a device deployed in a wireless local area network to provide wireless communication capabilities for STAs. A station may include: User Equipment (UE), an access terminal, a subscriber unit, a subscriber station, a mobile station, a mobile station, a remote station, a remote terminal, a mobile device, a wireless communication device, a user agent, or a user device. Optionally, a station may also be a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a Wireless Local Loop (WLL) station, a Personal Digital Assistant (PDA), a handheld device with wireless communication capabilities, a computing device or other processing device connected to a wireless modem, a vehicle-mounted device, or a wearable device, but the embodiments of the present application are not limited to this.

[0098] In the embodiment of the present application, both the station and the access point support the IEEE 802.11 standard, but are not limited to the IEEE 802.11 standard. They may also be other standards related to perception measurement, such as the IEEE 802.11bf D0.1 standard.

[0099] In the WLAN perception scenario, the WLAN terminals participating in the perception include: perception initiators and perception responders. Furthermore, the perception responders can be divided into perception senders and perception receivers. Perception measurement can be applied to cellular network communication systems, wireless local area networks (WLAN) systems, or wireless fidelity networks (Wi-Fi) systems, and this application does not limit this. This application uses the application of perception measurement in WLAN or Wi-Fi systems as an example for schematic illustration.

[0100] Optionally, the perception measurement in the embodiment of the present application is implemented based on millimeter waves. The millimeter wave perception type is introduced as follows:

[0101] FIG2 is a schematic diagram of a millimeter wave sensing type provided by an exemplary embodiment of the present application. As shown in FIG2 , FIG2 (a) is single-base sensing, in which there is only one device participating in the sensing. The device senses the environment by spontaneously sending (self-sending) sensing PPDUs and self-receiving (self-receiving) echo signals, similar to the working mode of traditional radars. Wherein, spontaneous sending and self-receiving means that when a device sends a sensing PPDU, the sender address and the receiver address of the sensing PPDU are both set to the device's own address. The sensing PPDU sent by the device will form an echo signal after being scattered and / or reflected by the environment. The device can then receive the echo signal through its own address and perceive the environment by analyzing the echo signal. FIG2 (b) is dual-base sensing, in which there are two devices participating in the sensing, one of which sends the sensing PPDU and the other receives the echo signal to sense the environment. FIG2 (c) is collaborative single-base sensing, in which the number of devices participating in the sensing is greater than one. Each device senses the environment by spontaneously sending a sensing PPDU and self-receiving an echo signal. There is a sensing initiator that controls all other devices to achieve collaboration. Figure 2(d) illustrates collaborative dual-base sensing, where more than two devices participate in sensing. This means there are at least two pairs of dual-base sensing devices. Each transmitting device (sensing sender) transmits a sensing PPDU, and the corresponding echo signal is received by the receiving devices in the same group (sensing receivers), thus achieving collaborative sensing. Figure 2(e) illustrates multi-base sensing, where more than two devices participate in sensing. A single transmitting device transmits a sensing PPDU, and multiple receiving devices simultaneously receive the echo signal and complete environmental sensing.

[0102] The following describes the millimeter wave sensing process:

[0103] Figure 3 is a schematic diagram of the millimeter wave sensing process provided by an exemplary embodiment of the present application. As shown in Figure 3, the process is a general process of millimeter wave sensing, which includes, from left to right, the session setup phase, the millimeter wave sensing measurement setup (directional multi-gigabit (DMG) Measurement setup) phase, and the sensing measurement phase. The sensing measurement phase consists of multiple sensing measurement bursts, and each burst consists of multiple sensing measurement instances. The time interval between bursts is the inter-burst interval, and the time interval between adjacent sensing measurement instances in a burst is the intra-burst interval. In Figure 3, MAC ADDR refers to the Media Access Control (MAC) address, AID refers to the association identifier, DMG Measurement setup ID refers to the millimeter wave sensing measurement setup identifier, MS ID refers to the measurement setup (MS) identifier, Burst ID refers to the burst identifier, and Instance Sequential Number (SN) refers to the identifier of the sensing measurement instance, also known as the sensing instance SN. The "burst" in the above description can also be called a "burst."

[0104] This article introduces an example of millimeter wave collaborative monostatic sensing measurement:

[0105] Millimeter-wave collaborative monostatic sensing measurement instances exist in two modes: a sequential mode and a parallel mode. For example, Figure 4 is a schematic diagram of an example of a sequential mode for millimeter-wave collaborative monostatic sensing measurement provided by an exemplary embodiment of the present application, and Figure 5 is a schematic diagram of an example of a parallel mode for millimeter-wave collaborative monostatic sensing measurement provided by an exemplary embodiment of the present application.

[0106] As shown in Figures 4 and 5, the similarities between the sequential and parallel modes are that the sensing initiator (Initiator) needs to send a millimeter wave sensing request (DMG Sensing Request) frame to each sensing responder (Responder) at the beginning of the sensing measurement instance, and each sensing responder needs to reply with a millimeter wave sensing response (DMG Sensing Response) frame to the sensing initiator within the short interframe space (SIFS) time. The DMG sensing request is also called RQ, and the DMG sensing response is also called RSP.

[0107] As shown in Figures 4 and 5, the difference between sequential mode and parallel mode is that in sequential mode, each sensing responder sends and receives single-base sensing measurement frames (single-base PPDU) to sense the environment and sends a sensing measurement report frame (DMG Sensing Measurement Report) to the sensing initiator within the SIFS time. In parallel mode, each sensing responder simultaneously sends and receives single-base sensing measurement frames to sense the environment and then sends DMG sensing measurement report frames (sensing measurement report frames) to the sensing initiator.

[0108] It should be noted that in Figures 4 and 5, the grids above the horizontal line corresponding to the perception initiator or the perception responder represent frames sent by the device, and the grids below the horizontal line (blank grids) represent frames received by the device, and the sent frames and the received frames are corresponding. For the grid directly above the horizontal line corresponding to the perception responder, it represents a frame sent and received by the perception responder, such as a single-base perception measurement frame sent and received by the perception responder. For example, in Figure 4, the perception initiator sends an RQ to the perception responder site A (represented by the grid above the horizontal line corresponding to the perception initiator), and accordingly, the perception responder site A will receive the RQ (represented by the blank grid below the horizontal line corresponding to the perception responder site A). The meaning of the blank grids in other figures of this application can be referred to the above description, and will not be repeated here.

[0109] The following describes the frame format of the DMG perception measurement setting element:

[0110] Figure 6 is a schematic diagram of the frame format of the DMG sensing measurement setup element provided by an exemplary embodiment of the present application. As shown in Figure 6, the DMG sensing measurement setup element carries information for setting a DMG sensing measurement. The DMG sensing measurement setup element is located in the DMG sensing measurement setup request frame (Sensing Measurement Setup Request) and the DMG sensing measurement setup response frame (Sensing Measurement Setup Response). It includes an element ID field, a length field, an element ID extension field, a measurement setup control field, a report type (Report Type) field, an LCI field, a peer location (Peer Orientation) field, and an optional sub-element field. The measurement setup control field includes the following fields:

[0111] Sensing Type: Indicates the type of DMG sensing measurement. The specific values ​​and their meanings can be found in Table 1.

[0112] Table 1

[0113] Value Meaning 0 Coordinated Monostatic 1 Coordinated Bistatic 2 Bistatic 3 Multistatic 4 Reserved

[0114] RX Initiator: Indicates whether the initiator is a receiver or a sender in the double-click sensing type. A value of 1 indicates that the initiator is a receiver; a value of 0 indicates that the initiator is a sender.

[0115] LCI Present: Indicates whether the LCI field is present in the DMG Perception Measurement Setup element. A value of 1 indicates that the LCI field is present in the DMG Perception Measurement Setup element; a value of 0 indicates that the LCI field is not present in the DMG Perception Measurement Setup element.

[0116] Orientation Present: Indicates whether the peer orientation field is present in the DMG Perception Measurement Setup element. A value of 1 indicates that the peer orientation field is present in the DMG Perception Measurement Setup element; a value of 0 indicates that the peer orientation field is not present in the DMG Perception Measurement Setup element. In addition, the Reporting Type field in the DMG Perception Measurement Setup element is used to indicate the type of report that the perception initiator expects the perception responder to report. The values ​​and their meanings are shown in Table 2.

[0117] Table 2

[0118]

[0119]

[0120] In addition, the LCI field carries the LCI field in the location configuration information report.

[0121] The peer location field indicates the direction and distance of the peer device and contains three subfields: Azimuth, Elevation, and Range. The optional sub-element field contains zero or more sub-elements. The full list of sub-elements and their order is shown in Table 3.

[0122] Table 3

[0123]

[0124] This section describes the Time Division Duplexing (TDD) beamforming frame:

[0125] Figure 7 is a schematic diagram of the format of a beamforming frame provided by an exemplary embodiment of the present application. As shown in Figure 7, a TDD beamforming frame is a type of control frame. Its MAC frame body consists of two parts: the TDD beamforming control field and the TDD beamforming information field. The meanings of the fields in the MAC frame header of the TDD beamforming frame are as follows:

[0126] Frame Control: Indicates the type of the MAC frame, including information indicating that the frame is a TDD beamforming frame.

[0127] Duration: Indicates the length of time the frame is sent.

[0128] Receiver Address (RA): Indicates the MAC address of the frame receiver.

[0129] Transmitter Address (TA): Indicates the MAC address of the frame sender.

[0130] TDD Beamforming Frame Type: indicates the type of TDD beamforming frame. For specific values ​​and meanings, see Table 4.

[0131] Table 4

[0132] Value Meaning 0TDD Sector Sweep (SSW) 1TDD SSW Feedback 2TDD SSW Ack 3DMG Sensing

[0133] As shown in Table 4, the TDD beamforming frame type field values ​​0, 1, and 2 all indicate that the TDD beamforming frame is a type related to beam training, which is irrelevant to the method provided in the embodiment of the present application. The value 3 indicates that the TDD beamforming frame is a type related to DMG perception. When the TDD beamforming frame type field value is 3, the TDD group beamforming (TDD Group Beamforming) field and the TDD beam measurement (TDD Beam Measurement) field jointly indicate the use of a TDD beamforming frame in DMG perception. For specific values ​​and their meanings, please refer to Table 5.

[0134] Table 5

[0135]

[0136] As shown in Table 5, when the value of the TDD group beam forming field is 0 and the value of the TDD beam measurement field is 0, it indicates that the TDD beam forming frame is a DMG perception request frame (perception request frame); when the value of the TDD group beam forming field is 0 and the value of the TDD beam measurement field is 1, it indicates that the TDD beam forming frame is a DMG perception response frame (perception response frame); when the value of the TDD group beam forming field is 1 and the value of the TDD beam measurement field is 0, it indicates that the TDD beam forming frame is a DMG perception polling frame (perception polling frame).

[0137] Introduction to the DMG perception request frame:

[0138] Figure 8 is a schematic diagram of the format of a sensing request frame provided by an exemplary embodiment of the present application. As shown in Figure 8, the meanings of the fields in the TDD beamforming information field of the DMG sensing request frame are as follows:

[0139] Measurement Setup ID: The identifier of the perception measurement setup associated with this frame.

[0140] Measurement Burst ID: The identifier of the sensor measurement burst associated with this frame.

[0141] Sensing Instance Sequential Number (SN): indicates the sequence number of a sensing measurement instance in a measurement burst.

[0142] Sensing type: Indicates the sensing type requested by the frame. For specific values ​​and meanings, see Table 6:

[0143] Table 6

[0144] Value Meaning 0 Coordinated Monostatic 1 Coordinated Bistatic 2 Multistatic 3 Reserved

[0145] STA ID: Indicates the order in which a STA participates in a perception measurement instance.

[0146] First Beam Index: indicates the index of the first transmit beam used in a perception measurement instance.

[0147] Num of STAs in Instance: indicates the number of STAs participating in the measurement in a perception measurement instance.

[0148] Num of PPDUs in Instance: Indicates the number of PPDUs that appear in a perception measurement instance.

[0149] Enhanced Directional Multi-Gigabit (EDMG) TRN Length: Indicates the number of TRN units contained in a PPDU.

[0150] · Number of receive (RX) TRN-Units per each transmit (TX) TRN-Unit (RX TRN-Units per Each TX TRN-Unit): indicates the number of TRN-Units sent consecutively in the same direction.

[0151] EDMG TRN-Unit P: Indicates the number of TRN subfields in a TRN-Unit whose beam direction is directed toward the peer device.

[0152] EDMG TRN-Unit M: Indicates the number of TRN subfields with variable beam directions in one TRN-Unit.

[0153] EDMG TRN-Unit N: indicates the number of TRN subfields transmitted consecutively using the same beam direction in the TRN-Unit-M TRN subfields.

[0154] TRN Subfield Sequence Length: indicates the length of the Golay sequence used by each TRN subfield.

[0155] Bandwidth: Indicates the bandwidth used to send the TRN field.

[0156] Figure 9 is a schematic diagram of the format of a DMG Perception Response frame according to an exemplary embodiment of the present application. As shown in Figure 9, the MAC frame body of the DMG Perception Response frame only includes the TDD Beamforming Control field.

[0157] Introduction to DMG perception polling frame:

[0158] FIG10 is a schematic diagram of the format of a perception polling frame provided by an exemplary embodiment of the present application. As shown in FIG10 , the meanings of the fields in the TDD beamforming information field of the DMG perception polling frame are as follows:

[0159] Measurement Setup ID: an identifier indicating the awareness measurement setup associated with this DMG awareness poll frame.

[0160] Measurement Burst ID: an identifier indicating the perception measurement burst associated with this DMG perception polling frame.

[0161] Sensing Instance Sequential Number (SN): indicates the identifier of the sensing measurement instance associated with this DMG sensing polling frame.

[0162] FIG11 is a schematic diagram of the format of an EDMG Multi-Static Sensing PPDU (Enhanced Directional Multi-Gigabit Multi-Static Sensing Physical Layer Protocol Data Unit) provided by an exemplary embodiment of the present application.

[0163] The EDMG Multi-Static Sensing PPDU (EDMG Multi-Static Sensing PPDU) is based on the EDMG Beam Refinement Protocol (EDMG) BRP PPDU (EDMG Beam Refinement Protocol) in the IEEE 802.11 standard, with the Sync field and Sync PAD field inserted. The Sync field contains multiple subfields (Sync1, Sync2, ..., Syncn). Different Sync subfields are sent directionally to different STAs participating in a multi-static sensing instance. The purpose is to trigger multiple STAs to simultaneously receive the TRN (Traning) field in the EDMG Multi-Static Sensing PPDU, thereby implementing the DMG multi-static sensing type of single-transmit-multiple-receive. The Sync PAD field is used for padding to ensure that the combined length of the Sync field and Sync PAD field is a reasonable value, thereby preventing legacy devices from misinterpreting the PPDU.

[0164] FIG12 is a schematic diagram showing an example of multi-base sensing measurement.

[0165] In the related art, there is a timing problem with the coordinated monostatic sensing measurement type in parallel mode. Referring to FIG13 , FIG13 shows a schematic diagram of an example of coordinated monostatic sensing measurement in parallel mode in the related art.

[0166] Figure 13 shows a parallel mode collaborative monostatic sensing measurement example applied to a sensing initiator (STA A) and two sensing responders (STA A and STA B). According to relevant standards, STA A and STA B are required to simultaneously transmit and receive monostatic sensing measurement frames (monostatic PPDUs) within a SIFS period after STA B sends a sensing response frame (RSP). However, the MCS (Modulation and Coding Scheme) used in the sensing request frame (DMG Sensing RQ) and sensing response frame (RSP) sent between the sensing initiator and STA A can differ from the MCS used between the sensing initiator and STA B. This results in a difference in the duration of the interaction between the sensing initiator and STA A and between the sensing initiator and STA B. (If the sensing initiator interacts with STA A using MCS1 and the sensing initiator interacts with STA B using MCS10, the timing error between the two is approximately 0.91 μs. When the number of participating STAs reaches the maximum of 8, the timing error can reach 6.37 μs, a significant error that cannot be ignored.) Furthermore, STA A cannot know the MCS used by STA B. In this case, STA A cannot calculate the time when STA B sends the sensing response frame (RSP), and thus cannot accurately send the single-base PPDU within the SIFS time. In addition, STA A may not be able to receive the sensing response frame sent by STA B to the sensing initiator, because DMG devices generally use a narrow beam to point to the other device to transmit signals. If STA A and STA B are not in close proximity, STA A may not receive the sensing response frame signal.

[0167] The above timing problem is likely to cause the monostatic PPDUs sent by different STAs to be unable to be well aligned in time, and may also cause additional interference, thereby reducing the accuracy of the perception results.

[0168] Based on this, this application provides the following two solutions.

[0169] Detailed introduction to the first solution:

[0170] FIG14 shows a flowchart of a perception measurement method provided by an exemplary embodiment of the present application. The method is illustrated by taking the method executed by a perception initiating device as an example. The method includes:

[0171] Step 1401: Send a synchronization field in a coordinated single-base measurement in a parallel mode;

[0172] In some embodiments, the synchronization field is used to trigger a sensory response device to transmit a single-base PPDU. Optionally, the synchronization field is a Sync field. In some embodiments, the synchronization field includes at least one synchronization subfield, and at least one synchronization subfield is directed to the sensory response device corresponding to the synchronization subfield. Optionally, the at least one synchronization subfield is a Sync1, Sync2, or Sync3 field. Illustratively, the Sync1 field is sent to the corresponding sensory response device STA1, the Sync2 field is sent to the corresponding sensory response device STA2, and the Sync3 field is sent to the corresponding sensory response device STA3.

[0173] In some embodiments, the Sync field is used to trigger at least two sensing response devices to simultaneously transmit a single-base PPDU. Illustratively, the Sync field is used to trigger sensing response devices STA1 and STA2 to simultaneously transmit a single-base PPDU. In some embodiments, the Sync field is used to trigger the sensing response devices to transmit the single-base PPDU after a first interval. Optionally, the first interval is a SIFS, and the Sync field is used to trigger the sensing response devices to transmit the single-base PPDU after one SIFS.

[0174] In some embodiments, the synchronization field is carried in the first frame. Optionally, the first frame is an EDMG multi-static sensing PPDU (Enhanced Directional Multi-Gigabit Multi-static Sensing Physical Layer Protocol Data Unit) (EDMG Multi-Static Sensing). With reference to FIG11 , FIG11 shows a schematic diagram of the structure of an EDMG multi-static sensing PPDU, wherein the EDMG multi-static sensing PPDU includes a synchronization field (Sync field 1101), and the Sync field 1101 includes at least one synchronization subfield (Sync1 field, Sync2 field, ..., Sync n field).

[0175] Optionally, the first frame includes a first type field, the value of which indicates that the first frame is for collaborative single-base in parallel mode. Optionally, the first frame is an EDMG multibase-aware PPDU, and the first type field is the awareness type field in the EDMG-Header-A field (Enhanced Directional Multi-Gigabit Type A Header field). With reference to FIG11 , FIG11 illustrates an EDMG-Header-A field 1102 in an EDMG multibase-aware PPDU.

[0176] Optionally, the first frame includes a first quantity field, the value of which indicates the number of synchronization subfields included in the first frame. Optionally, the first frame is an EDMG multi-static awareness PPDU, and the first quantity field is the Multi-static Sensing NSTA (Multi-static Sensing Station Number) field in the EDMG-Header-A field. With reference to FIG11 , FIG11 illustrates the EDMG-Header-A field 1102 in the EDMG multi-static awareness PPDU.

[0177] Optionally, the first frame includes a first length field, the value of which indicates the number of TRN fields contained in the first frame. Optionally, the first frame is an EDMG multi-base awareness PPDU, and the first length field is the EDMG TRN Length (Enhanced Directional Multi-Gigabit Training Length) field located in the EDMG-Header-A field. With reference to FIG11 , FIG11 illustrates the EDMG-Header-A field 1102 in the EDMG multi-base awareness PPDU. Optionally, when the first frame is for a coordinated single-base in parallel mode, the protocol specifies that the value of the EDMG TRN Length field is 0.

[0178] In some embodiments, the method shown in Figure 14 also includes: carrying a first parameter in the transmission vector transmitted by the MAC (media access control) layer to the PHY (physical layer), and the value of the first parameter indicates that the first frame is used for collaborative single-base in parallel mode. Optionally, the first parameter is called a PARALLEL_COORDINATED_MONOSTATIC (parallel collaborative single-base) parameter. Optionally, when the value of the first parameter is a target value, it indicates that the first frame is used for collaborative single-base in parallel mode. Optionally, when the value of the first parameter is 1, it indicates that the first frame is used for collaborative single-base perception measurement in parallel mode. Optionally, when the value of the first parameter is 0, it indicates that the first frame is used for multi-base perception measurement.

[0179] Optionally, insert the following lines in Table 28-1 TXVECTOR and RXVECTOR parameters in the standard:

[0180] Table 7 Parameters of the transmit and receive vectors

[0181]

[0182] In summary, the sensing initiator sends a synchronization field to trigger the sensing responder to send a single-base PPDU, thereby solving the timing problem in the collaborative single-base sensing measurement in parallel mode.

[0183] FIG15 is a flowchart of a perception measurement method provided by an exemplary embodiment of the present application, which is illustrated by taking the method executed by a perception response device as an example. The method includes:

[0184] Step 1502: receiving a synchronization field in a coordinated single-base measurement in a parallel mode;

[0185] In some embodiments, the synchronization field is used to trigger the sensing response device to send a single-base PPDU. Optionally, the synchronization field is a Sync field. In some embodiments, the synchronization field includes at least one synchronization subfield.

[0186] In some embodiments, a synchronization subfield corresponding to a sensor response device is received during a coordinated monostatic measurement in parallel mode. Optionally, at least one synchronization subfield is a Sync1, Sync2, or Sync3 field. Illustratively, sensor response device STA1 receives the Sync1 field, sensor response device STA2 receives the Sync2 field, and sensor response device STA3 receives the Sync3 field.

[0187] In some embodiments, the Sync field is used to trigger at least two sensing response devices to simultaneously transmit a single-base PPDU. Illustratively, the Sync field is used to trigger sensing response device STA1 and sensing response device STA2 to simultaneously transmit a single-base PPDU. Illustratively, when sensing response device STA1 receives the Sync1 field and sensing response device STA2 receives the Sync2 field, both sensing response devices STA1 and STA2 are triggered to transmit single-base PPDUs.

[0188] In some embodiments, the Sync field is used to trigger the sensing response device to send a single-base PPDU after a first interval. Optionally, the first interval is a SIFS, the Sync1 field triggers the sensing response device STA1 to send a single-base PPDU after one SIFS, and the Sync2 field triggers the sensing response device STA2 to send a single-base PPDU after one SIFS.

[0189] In some embodiments, the synchronization field is carried in the first frame. Optionally, the first frame is an EDMG multi-base awareness PPDU. Referring to FIG11 , FIG11 shows a schematic diagram of the structure of an EDMG multi-base awareness PPDU. As can be seen from FIG11 , the EDMG multi-base awareness PPDU includes a synchronization field (Sync field 1101), and the Sync field 1101 includes at least one synchronization subfield (Sync1 field, Sync2 field, ..., Sync n field).

[0190] Optionally, the first frame includes a first type field, the value of which indicates that the first frame is for collaborative single-base in parallel mode. Optionally, the first frame is an EDMG multibase-aware PPDU, and the first type field is the awareness type field in the EDMG-Header-A field. With reference to FIG11 , FIG11 illustrates an EDMG-Header-A field 1102 in an EDMG multibase-aware PPDU.

[0191] Optionally, the first frame includes a first quantity field, the value of which indicates the number of synchronization subfields included in the first frame. Optionally, the first frame is an EDMG multi-static awareness PPDU, and the first quantity field is the Multi-static Sensing NSTA (Multi-static Sensing Station Number) field in the EDMG-Header-A field. With reference to FIG11 , FIG11 illustrates the EDMG-Header-A field 1102 in the EDMG multi-static awareness PPDU.

[0192] Optionally, the first frame includes a first length field, the value of which indicates the number of TRN fields contained in the first frame. Optionally, the first frame is an EDMG multi-base awareness PPDU, and the first length field is the EDMG TRN Length field located in the EDMG-Header-A field. With reference to FIG11 , FIG11 illustrates the EDMG-Header-A field 1102 in the EDMG multi-base awareness PPDU. Optionally, when the first frame is used for coordinated single-base in parallel mode, the protocol specifies that the value of the EDMG TRN Length (Enhanced Directional Multi-Gigabit Training Length) field is 0.

[0193] In summary, by receiving the synchronization field through the sensing response device, the sensing response device is triggered to send a single-base PPDU, which solves the timing problem existing in the collaborative single-base sensing measurement in the parallel mode.

[0194] Next, we will take two sensing response devices STA1 and STA2 as an example to introduce the collaborative single-base sensing measurement example of the parallel mode provided by this application. Figure 16 shows a schematic diagram of a sensing measurement method provided by an exemplary embodiment of this application, which includes:

[0195] (1) The sensing initiator sends a sensing request frame (DMG Sensing Request) to the sensing responder STA A; optionally, in the sensing request frame, set "Number of STAs in the instance" = 2, "STA ID" = 0, and "Sensing Type" = 1".

[0196] (2) After no more than one SIFS, STA A replies with a sensing response frame (DMG Sensing Response) to the sensing initiator;

[0197] (3) After no more than one SIFS, the sensing initiating device sends a sensing request frame (DMG Sensing Request) to the sensing responding device STA B; optionally, in the sensing request frame, set "Number of STAs in the instance" = 2, "STA ID" = 1, and "Sensing Type" = 1".

[0198] (4) After no more than one SIFS, STA B replies with a sensing response frame (DMG Sensing Response) to the sensing initiator;

[0199] (5) After no more than 1 SIFS time, the perception initiating device sends EDMG multi-base perception PPDU (EDMG multi-base perception PPDU) to the perception responding device STA A and the perception responding device STA B.

[0200] In some embodiments, with reference to FIG16 , the EDMG multibase awareness PPDU 1601 includes a Sync field. Optionally, the Sync field includes a Sync1 field and a Sync2 field. The Sync1 field is directed to the awareness response device STA A, and the Sync2 field is directed to the awareness response device STA B. In some embodiments, the Sync1 field is used to trigger the awareness response device STA A to transmit a unibase PPDU, and the Sync2 field is used to trigger the awareness response device STA B to transmit a unibase PPDU. In some embodiments, the Sync field is used to trigger the awareness response device STA A and the awareness response device STA B to transmit a unibase PPDU simultaneously. Optionally, the Sync1 field is used to trigger the awareness response device STA A to transmit a unibase PPDU one SIFS after the end of reception of the EDMG multibase awareness PPDU; optionally, the Sync2 field is used to trigger the awareness response device STA B to transmit a unibase PPDU one SIFS after the end of reception of the EDMG multibase awareness PPDU.

[0201] In some embodiments, the value of "Multistatic Sensing" in the EDMG-Header-A field of the EDMG multistatic-aware PPDU indicates that the PPDU is an EDMG multistatic-aware PPDU. Alternatively, the value of "Multistatic Sensing" is 1, indicating that the PPDU is an EDMG multistatic-aware PPDU.

[0202] In some embodiments, the value of the "Parallel Coordinated Monostatic" field in the EDMG-Header-A field of the EDMG multistatic sensing PPDU indicates that the PPDU is an EDMG Multistatic Sensing PPDU. Optionally, the value of "Parallel Coordinated Monostatic" is 1, indicating that the PPDU is used for parallel coordinated monostatic sensing measurements.

[0203] In some embodiments, the number of Sync subfields included in the Sync field in the EDMG multi-base awareness PPDU is indicated according to the value of the "Multistatic Sensing NSTA" field in the EDMG-Header-A field in the EDMG multi-base awareness PPDU.

[0204] In some embodiments, the value of the "EDMG TRN Length" field in the EDMG-Header-A field in the EDMG multi-base awareness PPDU indicates the number of TRN fields in the EDMG multi-base awareness PPDU. Optionally, the protocol specifies that in the case of coordinated single-base awareness measurement in parallel mode, the value of the "EDMG TRN Length" field is 0.

[0205] For example, the last line of Table 28-13 in the standard, "EDMG-MCS field definition when the Number of SS field is 0," is replaced with the following lines:

[0206] Table 8 Definition of the EDMG-MCS field when the spatial stream field value is 0

[0207]

[0208] (6) After no more than one SIFS, the sensing response device STA A and the sensing response device STA B simultaneously and independently send and receive one single-base PPDU to sense the environment;

[0209] (7) After no more than one SIFS, the sensing initiating device sends a sensing report polling frame (DMG Sensing Report Poll) to the sensing responding device STA A, triggering the sensing responding device STA A to report the sensing measurement results;

[0210] (8) After no more than one SIFS, the sensing responding device STA A sends a sensing measurement report frame (DMG Sensing Measurement Report) to the sensing initiating device;

[0211] (9) After no more than one SIFS, the sensing initiator sends an ACK frame to the sensing responder STA A.

[0212] Optionally, (9) is an optional step. In the single-base cooperative sensing measurement in parallel mode, the sensing initiating device may not need to reply with an acknowledgement frame.

[0213] (10) After no more than one SIFS, the sensing initiating device sends a sensing report polling frame (DMG Sensing Report Poll) to the sensing responding device STA B, triggering the sensing responding device STA B to report the sensing measurement results;

[0214] (11) After no more than one SIFS, the sensing response device STA B sends a sensing measurement report frame (DMG Sensing Measurement Report) to the sensing initiating device;

[0215] (12) After no more than one SIFS, the sensing initiator device replies with an ACK frame to the sensing responder device STA B;

[0216] Optionally, (12) is an optional step, and in the single-base cooperative sensing measurement in parallel mode, the sensing initiating device may not need to reply with an acknowledgement frame.

[0217] In summary, by sending the EDMG multi-base sensing PPDU through the sensing initiator device and receiving the synchronization field through the sensing response device, at least two sensing response devices are aligned in the time of sending the single-base PPDU.

[0218] It should be noted that the position, field length, and field value of the above-mentioned synchronization field, first type field, first quantity field, and first length field all serve as examples. It should be understood that all fields that play a similar role, regardless of whether the position, field length, and field value of the field are consistent with the above examples, should fall within the scope of protection of this application.

[0219] The second solution is described in detail:

[0220] As mentioned above, the MCS used in the DMG Sensing Request and DMG Sensing Response frames sent between the sensing initiator and the sensing responder, STA A, can be different from the MCS used in the sensing initiator and the sensing responder, STA B. Therefore, there is a problem in that the duration of the interaction between the sensing initiator and STA A is different from the duration of the interaction between the sensing initiator and STA B. Therefore, under the second solution, the protocol will stipulate that the sensing initiator and the sensing responder use the same MCS.

[0221] FIG17 shows a flowchart of a perception measurement method provided by an exemplary embodiment of the present application. The method is illustrated by taking the method executed by a perception initiating device as an example. The method includes:

[0222] Step 1701: Send a sensing request frame to at least one sensing response device using a first MCS in a coordinated single-base measurement in a parallel mode.

[0223] The first MCS is the MCS specified by the protocol.

[0224] In some embodiments, the protocol specifies that the first MCS is any one of MCS0 to MCS5 and MCS7 to MCS10. For example, Table 9 shows MCS0 defined in the protocol.

[0225] Table 9

[0226] MCS number (index) Modulation (modulation) Code rate (Code rate) Data rate (Data rate) 0DBPSK1 / 2 a 27.5Mb / s a

[0227] Table 10 shows the various MCSs defined for EDMGPHY in the protocol. Different MCSs have different data transmission rates. CB Indicates (Number of Continuous Band, number of continuous keys).

[0228] Table 10

[0229]

[0230]

[0231] In some embodiments, at least two sensing response devices are present in a coordinated monostatic measurement in parallel mode. In some embodiments, the protocol specifies that, in the event of a frame transmission error, an i-th sensing request frame is transmitted at the i-th time after the end of transmission of the i-1-th sensing request frame, and the duration between the i-th time and the end of transmission is a duration specified by the protocol; wherein both the i-1-th sensing request frame and the i-th sensing request frame are transmitted using the first MCS. i is a positive integer greater than 1.

[0232] In some embodiments, the duration between the i-th moment and the end sending moment includes two first intervals and a reserved sending duration of a sensing response frame. Optionally, the first interval is SIFS.

[0233] In some embodiments, the frame transmission error is caused by the i-1th sensing response device not receiving the i-1th sensing request frame. In some embodiments, the frame transmission error is caused by the i-1th sensing response frame not being received by the i-1th sensing response device.

[0234] In some embodiments, the protocol stipulates that if the sensing initiator does not receive a sensing response frame (DMG Sensing Response) within the SIFS time after sending a sensing request frame (DMG Sensing Request) to a non-last sensing responder (Responder STA), the sensing initiator (Initiator) must send the next sensing request frame (DMG Sensing Request) to the next sensing responder (Responder STA) at a time of (2×SIFS+TXTIMEDMG Sensing Response) after the end time of the above-mentioned sensing request frame (DMG Sensing Request).

[0235] In some embodiments, when the sensing response device is an EDMG STA, the EDMG PPDU (Enhanced Directional Multi-Gigabit Physical Layer Protocol Data Unit) carrying the sensing request frame and the sensing response frame meets at least one of the following conditions:

[0236] The type of EDMG PPDU is non-EDMG single carrier mode PPDU (non-EDMG SC mode PPDU) or non-EDMG control mode PPDU (non-EDMG Control mode PPDU);

[0237] EDMG PPDU occupies a continuous 2.16 GHz channel;

[0238] EDMG PPDU uses the normal guard interval (NormalG1).

[0239] In some embodiments, the protocol stipulates that if the sensing response device STA is an EDMG STA, the type of the EDMG PPDU is a non-EDMG single carrier mode PPDU type (non-EDMG SC mode PPDU) or a non-EDMG control mode PPDU type (non-EDMG Control mode PPDU), and the EDMG PPDU can only occupy one continuous 2.16 GHz channel, and the EDMG PPDU can only use a normal guard interval (NormalGl).

[0240] Step 1702: Receive a perception response frame sent by at least one perception response device using a first MCS;

[0241] The first MCS is the MCS specified by the protocol.

[0242] In some embodiments, the protocol stipulates that the first MCS is any one of MCS0 to MCS5 and MCS7 to MCS10.

[0243] To sum up, by stipulating that the perception initiating device uses the first MCS to send the perception request frame and receives the perception response frame sent using the first MCS, where the first MCS is the MCS specified by the protocol, the problem that the single-base PPDUs sent by different perception response devices cannot be aligned in time under the collaborative single-base perception measurement in parallel mode is solved.

[0244] FIG18 shows a flowchart of a perception measurement method provided by an exemplary embodiment of the present application. The method is illustrated by taking the method executed by a perception response device as an example. The method includes:

[0245] Step 1801: In a coordinated single-base measurement in a parallel mode, receiving a sensing request frame sent by a sensing initiating device using a first MCS;

[0246] The first MCS is the MCS specified by the protocol.

[0247] In some embodiments, the protocol stipulates that the first MCS is any one of MCS0 to MCS5 and MCS7 to MCS10.

[0248] In some embodiments, when the sensing response device is an EDMG STA, the EDMG PPDU (Enhanced Directional Multi-Gigabit Physical Layer Protocol Data Unit) carrying the sensing request frame and the sensing response frame meets at least one of the following conditions:

[0249] The type of EDMG PPDU is non-EDMG single carrier mode PPDU (non-EDMG SC mode PPDU) or non-EDMG control mode PPDU (non-EDMG Control mode PPDU);

[0250] EDMG PPDU occupies a continuous 2.16 GHz channel;

[0251] EDMG PPDU uses the normal guard interval (NormalG1).

[0252] In some embodiments, the protocol stipulates that if the sensing response device STA is an EDMG STA, the type of the EDMG PPDU is a non-EDMG single carrier mode PPDU type (non-EDMG SC mode PPDU) or a non-EDMG control mode PPDU type (non-EDMG Control mode PPDU), and the EDMG PPDU can only occupy one continuous 2.16 GHz channel, and the EDMG PPDU can only use a normal guard interval (NormalGl).

[0253] Step 1802: Send a perception response frame to the perception initiating device using the first MCS.

[0254] The first MCS is the MCS specified by the protocol.

[0255] To sum up, by stipulating that the perception response device receives the perception request frame sent using the first MCS and sends the perception response frame using the first MCS, where the first MCS is the MCS specified by the protocol, the problem that the single-base PPDUs sent by different perception response devices cannot be aligned in time under the collaborative single-base perception measurement in parallel mode is solved.

[0256] In the absence of frame transmission errors, Figure 19 shows a schematic diagram of cooperative single-base sensing measurement in parallel mode under the second solution. Figure 19 shows three sensing response devices.

[0257] In conjunction with reference Figure 19, the perception request frames (DMG Sensing Request) sent by the perception initiating device to the perception response devices STA1, STA2 and STA3 all use the first MCS; and the perception response frames (DMG Sensing Response) sent by the perception response devices STA1, STA2 and STA3 to the perception initiating device all use the first MCS.

[0258] In the collaborative single-base parallel mode shown in FIG19 , the sensing response device STA1, the sensing response device STA2, and the sensing response device STA3 will send a single-base PPDU at the same time.

[0259] In the event of a frame transmission error, the frame transmission error may be caused by the i-1th sensing response device not receiving the i-1th sensing request frame. Figure 20 shows a schematic diagram of a coordinated single-base sensing measurement in parallel mode under the second solution. Figure 20 shows three sensing response devices.

[0260] With reference to Figure 20 , the perception initiating device sends a perception request frame using the first MCS to the perception responding devices STA A, STA B, and STA C. However, because the path of the perception initiating device when sending the perception request frame to STA B is blocked or due to other reasons, the perception responding device STA B fails to receive the perception request frame (the gray space 2001 in Figure 20 indicates that the perception responding device STA B fails to receive the perception request frame). As a result, the perception responding device STA B does not reply with a perception response frame to the perception initiating device after the SIFS time (the blank space 2002 in Figure 20 indicates that the perception responding device STA B does not reply with a perception response frame).

[0261] If the relevant protocol is followed, the perception initiating device will send a perception request frame to the next perception response device STA C in advance. In this case, there is still a timing problem because the time when the perception initiating device interacts with the perception response device STA B is different from the time when it interacts with other perception response devices STA.

[0262] Therefore, this application provides further protocol provisions. If the perception initiating device fails to receive the perception response frame within the SIFS time after sending the perception request frame to the perception response device STA B, the perception initiating device will send the perception response frame within (2×SIFS+TXTIME) after the end of the perception request frame. DMG Sensing Response ) at the moment when the next perception request frame is sent to the perception response device STA C, thereby keeping the interaction time between the perception initiating device and the perception response device STA A, the interaction time between the perception initiating device and the perception response device STA B, and the interaction time between the perception initiating device and the perception response device STA C the same. Based on this, the timing problem is solved, and the process of the collaborative single-base perception instance in parallel mode can proceed normally.

[0263] In the event of a frame transmission error, the frame transmission error may be caused by the perception initiating device not receiving the (i-1)th perception response frame sent by the (i-1)th perception responding device. Figure 21 shows a schematic diagram of a coordinated single-base perception measurement in parallel mode under the second solution. Figure 21 shows three perception responding devices.

[0264] With reference to Figure 21 , the sensing initiating device sends sensing request frames using the first MCS to sensing responding devices STA A, STA B, and STA C. However, because the sensing responding devices receive the sensing request frames, the paths they use to send sensing response frames to the sensing initiating device are blocked or due to other reasons, resulting in the sensing initiating device failing to receive the frames. Gray spaces 2101 in Figure 21 indicate that the sensing initiating device did not receive the sensing response frames.

[0265] If the relevant protocol is followed, the perception initiating device will send a perception request frame to the next perception response device STA C in advance. In this case, there is still a timing problem because the time when the perception initiating device interacts with the perception response device STA B is different from the time when it interacts with other perception response devices STA.

[0266] Therefore, this application provides further protocol provisions. If the perception initiating device fails to receive the perception response frame within the SIFS time after sending the perception request frame to the perception response device STA B, the perception initiating device will send the perception response frame within (2×SIFS+TXTIME) after the end of the perception request frame. DMG Sensing Response ) at the moment when the next perception request frame is sent to the perception response device STA C, thereby keeping the interaction time between the perception initiating device and the perception response device STA A, the interaction time between the perception initiating device and the perception response device STA B, and the interaction time between the perception initiating device and the perception response device STA C the same. Based on this, the timing problem is solved, and the process of the collaborative single-base perception instance in parallel mode can proceed normally.

[0267] FIG22 shows a structural block diagram of a perception measurement device provided by an exemplary embodiment of the present application. The device is applied to a perception initiating device, and includes:

[0268] The sending module 2201 is used to send a synchronization field in the coordinated single-base measurement in the parallel mode, and the synchronization field is used to trigger the perception response device to send a single-base PPDU.

[0269] In some embodiments, the synchronization field includes at least one synchronization subfield, and the at least one synchronization subfield is directionally sent to the sensory response device corresponding to the synchronization subfield.

[0270] In some embodiments, the synchronization field is used to trigger at least two sensing response devices to send a mono-based PPDU simultaneously.

[0271] In some embodiments, the Sync field is used to trigger the sensing response device to send a monobased PPDU after the first interval.

[0272] In some embodiments, the synchronization field is carried in the first frame. In some embodiments, the first frame is an EDMG multi-base aware PPDU.

[0273] In some embodiments, the first frame includes a first type field, the value of the first type field indicating that the first frame is for a coordinated single-base in parallel mode. In some embodiments, the first frame is an EDMG multibase awareness PPDU, and the first type field is the awareness type field in the EDMG-Header-A field.

[0274] In some embodiments, the first frame includes a first quantity field, the value of which indicates the number of synchronization subfields included in the first frame. In some embodiments, the first frame is an EDMG multi-static sensing PPDU, and the first quantity field is the Multi-static Sensing NSTA field in the EDMG-Header-A field.

[0275] In some embodiments, the sending vector transmitted by the MAC layer to the PHY carries a first parameter, and the value of the first parameter indicates that the first frame is used for a cooperative single-radix in a parallel mode.

[0276] In summary, triggering the sensing response device to send a single-base PPDU through the synchronization field solves the timing problem existing in the collaborative single-base sensing measurement in parallel mode.

[0277] FIG23 shows a structural block diagram of a perception measurement device provided by an exemplary embodiment of the present application. The device is applied to a perception response device, and the device includes:

[0278] The receiving module 2301 is configured to receive a synchronization field in a coordinated single-base measurement in a parallel mode, where the synchronization field is used to trigger the sensing response device to send a single-base PPDU.

[0279] In some embodiments, the receiving module 2301 is further configured to receive a synchronization subfield corresponding to the sensing response device in the coordinated single-base measurement in the parallel mode, where the synchronization field includes at least one synchronization subfield.

[0280] In some embodiments, the synchronization field is used to trigger at least two sensing response devices to send a mono-based PPDU simultaneously.

[0281] In some embodiments, the Sync field is used to trigger the sensing response device to send a mono-based PPDU after a first interval.

[0282] In some embodiments, the synchronization field is carried in the first frame. In some embodiments, the first frame is an EDMG multi-base aware PPDU.

[0283] In some embodiments, the first frame includes a first type field, the value of the first type field indicating that the first frame is for a coordinated single-base in parallel mode. In some embodiments, the first frame is an EDMG multibase awareness PPDU, and the first type field is the awareness type field in the EDMG-Header-A field.

[0284] In some embodiments, the first frame includes a first quantity field, the value of which indicates the number of synchronization subfields included in the first frame. In some embodiments, the first frame is an EDMG multi-static sensing PPDU, and the first quantity field is the Multi-static Sensing NSTA field in the EDMG-Header-A field.

[0285] In summary, triggering the sensing response device to send a single-base PPDU through the synchronization field solves the timing problem existing in the collaborative single-base sensing measurement in parallel mode.

[0286] FIG24 shows a structural block diagram of a perception measurement device provided by an exemplary embodiment of the present application. The device is applied to a perception initiating device, and includes:

[0287] The sending module 2401 is configured to send a sensing request frame to at least one sensing response device using a first MCS in a coordinated single-base measurement in a parallel mode;

[0288] The receiving module 2402 is configured to receive a perception response frame sent by at least one perception response device using a first MCS; wherein the first MCS is an MCS specified by a protocol.

[0289] In some embodiments, the first MCS is any one of MCS0 to MCS5 and MCS7 to MCS10.

[0290] In some embodiments, the sending module 2401 is also used to send the i-th perception request frame at the i-th moment after the end sending moment of the i-1-th perception request frame in the event of a frame transmission error, and the duration between the i-th moment and the end sending moment is the duration specified by the protocol; i is a positive integer greater than 1; wherein, the i-1-th perception request frame and the i-th perception request frame are both sent with the first MCS.

[0291] In some embodiments, the duration between the i-th moment and the end sending moment includes two first intervals and a reserved sending duration of a perception response frame.

[0292] In some embodiments, the frame transmission error is caused by the (i-1)th sensing response device not receiving the (i-1)th sensing request frame.

[0293] In some embodiments, the frame transmission error is caused by failure to receive the (i-1)th perception response frame sent by the (i-1)th perception response device.

[0294] In some embodiments, when the sensing response device is an EDMG STA, the EDMG PPDU carrying the sensing request frame and the sensing response frame satisfies at least one of the following conditions:

[0295] The type of EDMG PPDU is non-EDMG single carrier mode PPDU (non-EDMG SC mode PPDU) or non-EDMG control mode PPDU (non-EDMG Control mode PPDU);

[0296] EDMG PPDU occupies a continuous 2.16 GHz channel;

[0297] EDMG PPDU uses the normal guard interval (NormalG1).

[0298] In summary, the sensing initiator sends a synchronization field to trigger the sensing responder to send a single-base PPDU, thereby solving the timing problem in the collaborative single-base sensing measurement in parallel mode.

[0299] FIG25 shows a structural block diagram of a perception measurement device provided by an exemplary embodiment of the present application. The device is applied to a perception response device, and the device includes:

[0300] The receiving module 2501 is configured to receive a sensing request frame sent by a sensing initiating device using a first modulation and coding scheme (MCS) in a coordinated single-base measurement in a parallel mode;

[0301] The sending module 2502 is used to send a perception response frame to the perception initiating device using a first MCS; wherein the first MCS is an MCS specified by the protocol.

[0302] In some embodiments, the first MCS is any one of MCS0 to MCS5 and MCS7 to MCS10.

[0303] In some embodiments, when the sensing response device is an EDMG STA, the EDMG PPDU carrying the sensing request frame and the sensing response frame satisfies at least one of the following conditions:

[0304] The type of EDMG PPDU is non-EDMG single carrier mode PPDU (non-EDMG SC mode PPDU) or non-EDMG control mode PPDU (non-EDMG Control mode PPDU);

[0305] EDMG PPDU occupies a continuous 2.16 GHz channel;

[0306] EDMG PPDU uses the normal guard interval (NormalG1).

[0307] In summary, by receiving the synchronization field through the sensing response device, the sensing response device is triggered to send a single-base PPDU, which solves the timing problem existing in the collaborative single-base sensing measurement in the parallel mode.

[0308] It should be noted that the device provided in the above embodiment only uses the division of the above-mentioned functional modules as an example to implement its functions. In actual applications, the above-mentioned functions can be assigned to different functional modules according to actual needs, that is, the content structure of the device can be divided into different functional modules to complete all or part of the functions described above.

[0309] Regarding the apparatus in the above embodiment, the specific manner in which each module performs operations has been described in detail in the embodiment of the method, and will not be elaborated here.

[0310] Figure 26 is a structural diagram of a perception measurement device (perception initiating device and / or perception responding device) provided by an exemplary embodiment of the present application. The perception measurement device 2600 includes: a processor 2601, a receiver 2602, a transmitter 2603, a memory 2604 and a bus 2605.

[0311] The processor 2601 includes one or more processing cores. The processor 2601 executes various functional applications and information processing by running software programs and modules.

[0312] The receiver 2602 and the transmitter 2603 may be implemented as a communication component, which may be a communication chip.

[0313] The memory 2604 is connected to the processor 2601 via a bus 2605. The memory 2604 may be used to store at least one instruction, and the processor 2601 may be used to execute the at least one instruction to implement each step in the above method embodiment.

[0314] In addition, the memory 2604 can be implemented by any type of volatile or non-volatile storage device or a combination thereof. Volatile or non-volatile storage devices include but are not limited to: magnetic disks or optical disks, Electrically Erasable Programmable Read Only Memory (EEPROM), Erasable Programmable Read-Only Memory (EPROM), Static Random-Access Memory (SRAM), Read-Only Memory (ROM), magnetic memory, flash memory, and Programmable Read-Only Memory (PROM).

[0315] An embodiment of the present application also provides a computer-readable storage medium, which stores a computer program. The computer program is used to be executed by a perception measurement device to implement the perception measurement method of the above-mentioned perception measurement device (perception initiator and / or perception responder).

[0316] Optionally, the computer-readable storage medium may include: Read-Only Memory (ROM), Random-Access Memory (RAM), Solid State Drives (SSD), or an optical disk, etc. Among them, the random access memory may include Resistance Random Access Memory (ReRAM) and Dynamic Random Access Memory (DRAM).

[0317] An embodiment of the present application further provides a chip, which includes a programmable logic circuit and / or program instructions. When a perception measurement device equipped with the chip is running, the chip is used to implement the above-mentioned perception measurement method.

[0318] An embodiment of the present application also provides a computer program product or computer program, which includes computer instructions, and the computer instructions are stored in a computer-readable storage medium. The perception measurement device reads and executes the computer instructions from the computer-readable storage medium to implement the above-mentioned perception measurement method.

[0319] Those skilled in the art will appreciate that in one or more of the above examples, the functions described in the embodiments of the present application can be implemented using hardware, software, firmware, or any combination thereof. When implemented using software, these functions can be stored in a computer-readable medium or transmitted as one or more instructions or codes on a computer-readable medium. Computer-readable media include computer storage media and communication media, wherein communication media include any media that facilitates the transmission of computer programs from one place to another. The storage medium can be any available medium that can be accessed by a general-purpose or special-purpose computer.

[0320] The above description is merely an optional embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present application shall be included in the scope of protection of the present application.

Claims

1. A perception measurement method, characterized in that: The method is performed by a perception initiating device and includes: A synchronization field is sent in a coordinated monostatic measurement in a parallel mode, where the synchronization field is used to trigger a sensing response device to send a monostatic physical layer protocol data unit (Monostatic PPDU).

2. The method according to claim 1, characterized in that The synchronization field includes at least one synchronization subfield, and the at least one synchronization subfield is directionally sent to a sensory response device corresponding to the synchronization subfield.

3. The method according to claim 1, characterized in that The synchronization field is used to trigger at least two sensing response devices to send the single-base PPDU simultaneously.

4. The method according to claim 1, wherein The synchronization field is used to trigger the sensing response device to send the single-base PPDU after a first interval.

5. The method according to any one of claims 1 to 4, characterized in that: The synchronization field is carried in the first frame.

6. The method according to claim 5, characterized in that The first frame is an enhanced directional multi-gigabit multi-static sensing physical layer protocol data unit EDMG Multi-Static Sensing PPDU.

7. The method according to claim 5, characterized in that The first frame includes a first type field, and a value of the first type field indicates that the first frame is used for the collaborative single base in the parallel mode.

8. The method according to claim 7, characterized in that The first frame is an EDMG multi-base awareness PPDU, and the first type field is an awareness type field located in an enhanced directivity multi-gigabit type A header EDMG-Header-A field.

9. The method according to claim 5, characterized in that The first frame includes a first quantity field, and a value of the first quantity field indicates the quantity of synchronization subfields included in the first frame.

10. The method according to claim 9, characterized in that The first frame is an EDMG multi-static sensing PPDU, and the first quantity field is a Multi-static Sensing NSTA field located in the EDMG-Header-A field.

11. The method according to any one of claims 5 to 10, characterized in that: The sending vector transmitted by the media access control MAC layer to the physical layer PHY carries a first parameter, and the value of the first parameter indicates that the first frame is used for the coordinated single base in the parallel mode.

12. A perception measurement method, characterized in that: Executed by a sensory response device, the method includes: A synchronization field is received in a coordinated monostatic measurement in a parallel mode, where the synchronization field is used to trigger the sensing response device to send a monostatic physical layer protocol data unit (Monostatic PPDU).

13. The method according to claim 12, characterized in that The synchronization field includes at least one synchronization subfield; and the receiving of the synchronization field in the coordinated single-base measurement in the parallel mode includes: A synchronization subfield corresponding to the sensor response device is received in a coordinated monostatic measurement in a parallel mode.

14. The method according to claim 12, characterized in that The synchronization field is used to trigger at least two sensing response devices to send the single-base PPDU simultaneously.

15. The method according to claim 12, characterized in that The synchronization field is used to trigger the sensing response device to send the single-base PPDU after a first interval.

16. The method according to any one of claims 12 to 15, characterized in that: The synchronization field is carried in the first frame.

17. The method according to claim 16, characterized in that The first frame is an enhanced directional multi-gigabit multi-static sensing physical layer protocol data unit EDMG Multi-Static Sensing PPDU.

18. The method according to claim 16, characterized in that The first frame includes a first type field, and a value of the first type field indicates that the first frame is used for the collaborative single base in the parallel mode.

19. The method according to claim 18, characterized in that The first frame is an EDMG multi-base awareness PPDU, and the first type field is an awareness type field located in an enhanced directivity multi-gigabit type A header EDMG-Header-A field.

20. The method according to claim 16, wherein The first frame includes a first quantity field, and a value of the first quantity field indicates the quantity of synchronization subfields included in the first frame.

21. The method according to claim 20, characterized in that The first frame is an EDMG multi-static sensing PPDU, and the first quantity field is a Multi-static Sensing NSTA field located in the EDMG-Header-A field.

22. A perception measurement method, characterized in that The method is performed by a perception initiating device and includes: In a coordinated single-base measurement in parallel mode, sending a sensing request frame to at least one sensing response device using a first modulation and coding scheme (MCS); receiving a perception response frame sent by the at least one perception response device in the first MCS; The first MCS is an MCS specified by the protocol.

23. The method according to claim 22, characterized in that The first MCS is any one of MCS0 to MCS5 and MCS7 to MCS10.

24. The method according to claim 22, characterized in that The sending a perception request frame to at least one perception response device using the first MCS includes: In the event of a frame transmission error, the i-th perception request frame is sent at the i-th time after the end sending time of the i-1-th perception request frame, where the duration between the i-th time and the end sending time is the duration specified by the protocol; i is a positive integer greater than 1; Among them, the i-1th perception request frame and the i-th perception request frame are both sent using the first MCS.

25. The method according to claim 24, characterized in that The duration between the i-th moment and the end sending moment includes two first intervals and a reserved sending duration of a perception response frame.

26. The method according to claim 24, characterized in that The frame transmission error is caused by the (i-1)th perception response device not receiving the (i-1)th perception request frame.

27. The method according to claim 24, characterized in that The frame transmission error is caused by failure to receive the (i-1)th perception response frame sent by the (i-1)th perception response device.

28. The method according to any one of claims 22 to 27, characterized in that When the perception response device is an EDMG STA, an enhanced directional multi-gigabit physical layer protocol data unit (EDMG PPDU) carrying the perception request frame and the perception response frame satisfies at least one of the following conditions: The type of the EDMG PPDU is a non-EDMG single carrier mode PPDU or a non-EDMG control mode PPDU; The EDMG PPDU occupies a continuous 2.16 GHz channel; The EDMG PPDU uses a normal guard interval.

29. A perception measurement method, characterized in that Executed by a sensory response device, the method includes: In a collaborative single-base measurement in a parallel mode, receiving a sensing request frame sent by a sensing initiating device using a first modulation and coding scheme (MCS); Sending a perception response frame to the perception initiating device using the first MCS; The first MCS is an MCS specified by the protocol.

30. The method according to claim 29, wherein The first MCS is any one of MCS0 to MCS5 and MCS7 to MCS10.

31. The method according to claim 29 or 30, characterized in that When the perception response device is an enhanced directional multi-gigabit station (EDMG STA), an enhanced directional multi-gigabit physical layer protocol data unit (EDMG PPDU) carrying the perception request frame and the perception response frame satisfies at least one of the following conditions: The type of the EDMG PPDU is a non-EDMG single carrier mode PPDU or a non-EDMG control mode PPDU; The EDMG PPDU occupies a continuous 2.16 GHz channel; The EDMG PPDU uses a normal guard interval.

32. A perception measurement device, characterized in that The device comprises: The sending module is used to send a synchronization field in the collaborative monostatic measurement in the parallel mode, where the synchronization field is used to trigger the perception response device to send a monostatic physical layer protocol data unit (Monostatic PPDU).

33. A perception measurement device, characterized in that: The device comprises: The receiving module is configured to receive a synchronization field in a coordinated monostatic measurement in a parallel mode, where the synchronization field is used to trigger the sensing response device to send a monostatic physical layer protocol data unit (Monostatic PPDU).

34. A perception measurement device, characterized in that The device comprises: a sending module, configured to send a sensing request frame to at least one sensing response device using a first modulation and coding scheme (MCS) in a coordinated single-base measurement in a parallel mode; a receiving module, configured to receive a perception response frame sent by the at least one perception response device in the first MCS; The first MCS is an MCS specified by the protocol.

35. A perception measurement device, characterized in that The device comprises: A receiving module, configured to receive, in a collaborative single-base measurement in a parallel mode, a sensing request frame sent by a sensing initiating device using a first modulation and coding scheme (MCS); A sending module, configured to send a perception response frame to the perception initiating device using the first MCS; The first MCS is an MCS specified by the protocol.

36. A perception initiating device, characterized in that: The device comprises: processor; a transceiver connected to the processor; a memory for storing executable instructions for the processor; The processor is configured to load the executable instructions so that the perception initiating device implements the perception measurement method according to any one of claims 1 to 11 or claims 22 to 28.

37. A sensory response device, characterized in that: The device comprises: processor; a transceiver connected to the processor; a memory for storing executable instructions for the processor; The processor is configured to load the executable instructions so that the perception response device implements the perception measurement method according to any one of claims 12 to 21 or claims 29 to 31.

38. A computer-readable storage medium, characterized in that The computer-readable storage medium stores a computer program, and the computer program is used to be executed by a perception measurement device to implement the perception measurement method according to any one of claims 1 to 31.

39. A chip, characterized in that: The chip includes a programmable logic circuit and / or program instructions, and is used to implement the perception measurement method described in any one of claims 1 to 31 when a perception measurement device equipped with the chip is running.

40. A computer program product or a computer program, characterized in that The computer program product or computer program includes computer instructions, which are stored in a computer-readable storage medium. The perception measurement device reads and executes the computer instructions from the computer-readable storage medium to implement the perception measurement method according to any one of claims 1 to 31.

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