Communication method and communication apparatus for wireless local area network sensing measurements
By identifying device roles and antenna directivity through message frames exchanged in WLAN sensing measurements, the problem of imperfect measurement methods in dual-site and multi-site systems is solved, and more accurate WLAN sensing measurements are achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- BEIJING XIAOMI MOBILE SOFTWARE CO LTD
- Filing Date
- 2022-01-18
- Publication Date
- 2026-07-31
AI Technical Summary
Existing wireless LAN sensing measurement methods have shortcomings in location detection, proximity detection, and presence detection in dense environments, especially in measurement methods for dual-station and multi-station systems, which have not yet been fully addressed.
During the wireless LAN sensing measurement process, message frames exchanged between the first and second devices are used to identify their respective roles and antenna directivity information, including the identification information of the sender and receiver, as well as the antenna directivity information, and measurements are performed through WLAN sensing frames.
It enables more accurate wireless LAN sensing measurements in dual-station and multi-station systems, improves the measurement methods for WLAN sensing, and adapts to the needs of WLAN sensing.
Smart Images
Figure CN116783506B_ABST
Abstract
Description
Technical Field
[0001] This disclosure relates to the field of wireless communication, and more specifically, to a communication method and communication apparatus for sensing measurements in wireless local area networks. Background Technology
[0002] Wireless Local Area Networks (WLANs) are characterized by flexibility, mobility, and low cost. With the development of communication technologies and the growth of user demands, research into WLAN applications is gradually deepening. For example, research is currently underway on WLAN sensing, with its main application scenarios including: location discovery in dense environments (home and enterprise environments), proximity detection, and presence detection. Summary of the Invention
[0003] The various embodiments of this disclosure provide the following technical solutions:
[0004] According to an example embodiment of this disclosure, a communication method for wireless local area network (WLAN) sensing measurement is provided. The communication method includes: a first device determining a first message frame; the first device sending the first message frame, wherein the first message frame includes: first information for identifying the first device, wherein the first information includes: first identification information for identifying the first device as a receiver and / or sender of a WLAN sensing frame.
[0005] According to an example embodiment of this disclosure, a communication method for wireless local area network (WLAN) sensing measurement is provided. The communication method includes: a second device receiving a first message frame from a first device, wherein the first message frame includes: first information for identifying the first device, wherein the first information includes: first identification information for identifying the first device as a receiver and / or sender of a WLAN sensing frame; and the second device obtaining the first information from the first message frame.
[0006] According to an example embodiment of this disclosure, a communication device for wireless local area network (WLAN) sensing is provided. The communication device includes: a processing module configured to: determine a first message frame; and a transceiver module configured to: send the first message frame, wherein the first message frame includes: first information for identifying a first device including the communication device, wherein the first information includes: first identification information for identifying the first device as a receiver and / or sender of a WLAN sensing frame.
[0007] According to an example embodiment of this disclosure, a communication device for wireless local area network (WLAN) sensing is provided. The communication device includes: a transceiver module configured to: receive a first message frame from a first device, wherein the first message frame includes: first information for identifying the first device, wherein the first information includes: first identification information for identifying the first device as a receiver and / or sender of a WLAN sensing frame; and a processing module configured to: obtain the first information from the first message frame.
[0008] A communication device is provided according to an exemplary embodiment of this disclosure. The communication device includes a memory, a processor, and a computer program stored in the memory and executable on the processor. When the processor executes the computer program, it implements the method described above.
[0009] According to an exemplary embodiment of this disclosure, a computer-readable storage medium is provided. A computer program is stored on the computer-readable storage medium. When executed by a processor, the computer program implements the method described above.
[0010] The technical solutions provided by the exemplary embodiments of this disclosure can adapt to the needs of WLAN sensing. Attached Figure Description
[0011] The above and other features of the present disclosure will become more apparent from the following detailed description of exemplary embodiments with reference to the accompanying drawings, wherein:
[0012] Figure 1 This illustrates an exemplary way of WLAN awareness.
[0013] Figure 2 This illustrates an exemplary WLAN sensing measurement process.
[0014] Figure 3 This is an exemplary way of illustrating a WLAN sensing measurement method.
[0015] Figure 4 This is a flowchart illustrating a communication method according to an example embodiment.
[0016] Figure 5 This is a flowchart illustrating a communication method according to an example embodiment.
[0017] Figure 6 It illustrates the information exchange and sensing measurement process between the sender and receiver.
[0018] Figure 7 This is a flowchart illustrating another communication method according to an example embodiment.
[0019] Figure 8 This is a flowchart illustrating another communication method according to an example embodiment.
[0020] Figure 9 This is a block diagram illustrating a communication device according to an example embodiment. Detailed Implementation
[0021] The following description, with reference to the accompanying drawings, is provided to aid in a comprehensive understanding of the various embodiments of this disclosure as defined by the appended claims and their equivalents. The various embodiments of this disclosure include a variety of specific details, but these details are to be considered exemplary only. Furthermore, for clarity and brevity, descriptions of well-known techniques, functions, and constructions may be omitted.
[0022] The terms and words used in this disclosure are not limited to their literal meanings, but are used solely by the inventors to ensure a clear and consistent understanding of the disclosure. Therefore, the descriptions of various embodiments of the disclosure provided are for illustrative purposes only and not for limiting purposes.
[0023] It should be understood that, unless the context clearly indicates otherwise, the singular forms “a,” “an,” “the,” and “the” used herein may also include the plural forms. It should be further understood that the word “comprising” as used in this disclosure means the presence of the described features, integers, steps, operations, elements, and / or components, but does not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and / or groups thereof.
[0024] It will be understood that although the terms “first,” “second,” etc., may be used herein to describe various elements, these elements should not be limited by these terms. These terms are only used to distinguish one element from another. Therefore, without departing from the teachings of the example embodiments, the first element discussed below may be referred to as the second element.
[0025] It should be understood that when an element is referred to as “connected” or “coupled” to another element, it can be directly connected or coupled to the other element, or there may be an intermediate element. Furthermore, the use of “connected” or “coupled” herein can include wireless connections or wireless couplings. The terms “and / or” or the expression “at least one of…” as used herein include any and all combinations of one or more of the associated listed items.
[0026] Unless otherwise defined, all terms used herein (including technical and scientific terms) shall have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure pertains.
[0027] Figure 1 This illustrates an exemplary way of WLAN awareness.
[0028] The process of WLAN sensing can be as follows: an initiator initiates WLAN sensing (e.g., initiates a WLAN sensing session), and there may be multiple responders responding to it. Specific possible methods include... Figure 1 As shown in (a), (b) and (c) in the figure.
[0029] Reference Figure 1 In (a) of this clause, when a WLAN sensing initiator (e.g., a client) initiates WLAN sensing, multiple associated or unassociated WLAN sensing responders (e.g., three access points (APs)) can respond. Here, "associated" can refer to an association connection established between the initiator and the responder for communication, while "unassociated" can refer to an association connection not established between the initiator and the responder for communication.
[0030] As an example, a client may include, but is not limited to: cellular phones, smartphones, wearable devices, computers, personal digital assistants (PDAs), personal communication system (PCS) devices, personal information managers (PIMs), personal navigation devices (PNDs), global positioning systems, multimedia devices, Internet of Things (IoT) devices, etc.
[0031] An access point (AP) can be a wireless switch for a wireless network or an access device for a wireless network. An AP may include software applications and / or circuitry to enable other types of nodes in the wireless network to communicate with the outside and inside of the wireless network. As an example, an AP may be a terminal device or network device equipped with a Wi-Fi (Wireless Fidelity) chip.
[0032] Figure 1 (b) and Figure 1 Similar to (a) in, but in Figure 1 In (b) of the above, the various responders (APs) can communicate with each other.
[0033] Reference Figure 1 In (c), both the WLAN sensing initiator and the WLAN sensing responder can be clients, and they can communicate by connecting to the same AP.
[0034] Although Figure 1As shown in (a), (b), and (c) above, the client acts as the initiator and the AP as the responder; however, this disclosure is not limited thereto. For example, the AP can act as the initiator and the client as the responder. In embodiments of this disclosure, the AP can also be referred to as an AP site (AP STA), and the client can refer to a non-AP site (Non-AP STA), or simply as "STA". Furthermore, the number of initiators and responders is not limited to [specific details needed]. Figure 1 As shown in (a), (b) and (c) in the figure.
[0035] As an illustrative embodiment, the WLAN sensing process may include: WLAN sensing session establishment, WLAN sensing measurement establishment, WLAN sensing measurement, and WLAN sensing measurement feedback. During WLAN sensing session establishment, operating parameters associated with the sensing session can be determined and exchanged between devices. Furthermore, one WLAN sensing session establishment may include multiple WLAN sensing measurement establishments. In one WLAN sensing measurement establishment, operating parameters for the sensing measurement can be defined, and one or more sensing measurement events can be included. During WLAN sensing measurement, one or more WLAN sensing measurement events can be executed to obtain WLAN sensing measurement results. During WLAN sensing measurement feedback, the WLAN sensing measurement results can be fed back.
[0036] WLAN sensing can be applied in the 60GHz spectrum, and the process can be as follows: Figure 2 As shown.
[0037] Figure 2 This illustration depicts the establishment of a WLAN sensing session and a WLAN sensing measurement setup under that session. However, this disclosure is not limited to this; the WLAN sensing process may include multiple WLAN sensing session establishments, and each WLAN sensing session establishment may contain multiple WLAN sensing measurement setups. In a WLAN sensing session establishment, the initiator's MAC (Media Access Control Address) address (ADDR) and the responder's identifier AID can be identified. In a WLAN sensing measurement setup, a measurement setup identifier (Measurement Setup ID) and the initiator's MAC ADDR can be identified.
[0038] Each WLAN sensing measurement setup can contain one or more bursts, and each burst can contain one or more WLAN sensing measurement events. Figure 2This is illustrated as a "sensing instance". A burst represents a specific time interval, and one or more WLAN sensing measurement events can be performed within a burst. Although in Figure 2 Two bursts (Butt 1 and Burst 2) are shown, and each burst includes three WLAN sensing measurement events (sensing instances). However, this is only an instance and the disclosure is not limited thereto. The number of bursts in each WLAN sensing measurement setup and the number of sensing instances in each burst can be changed differently.
[0039] Continue to refer to Figure 2 Each WLAN sensing measurement event can have a corresponding identifier (Instance#), and can correspond to a measurement setup identifier (Setup ID) and a burst identifier (Burst ID). The time interval between adjacent WLAN sensing measurement events within a burst can be called the intra-burst interval, and the time interval between adjacent bursts can be called the inter-burst interval.
[0040] In millimeter-wave applications, various measurement methods can be employed. That is, different measurement methods can be used when performing each WLAN sensing measurement event (sensing instance). For example... Figure 3 The diagram illustrates exemplary methods for different measurement approaches.
[0041] Figure 3 (a) illustrates a monostatic device and its cooperative measurement method. Specifically, an AP STA can initiate WLAN sensing as an initiator, and a Non-AP STA can act as a responder. Both can be monostatic devices with transmitting and receiving capabilities during the WLAN sensing measurement process. For example, during WLAN sensing measurement, each STA (e.g., Non-AP STA A and Non-AP STA B) can act as a transmitter (TX) to send WLAN sensing frames to the object to be sensed, and can also act as a receiver (RX) to receive feedback from the object, thereby achieving WLAN sensing measurement.
[0042] Figure 3(b) illustrates the measurement methods for bistatic and multistatic systems. Specifically, in a bistatic system, the transmitter (TX) and receiver (RX) are separate devices, and during collaborative WLAN sensing measurements, the two bistatic systems share the same TX, such as... Figure 3 As shown in (b), receivers RX1 and RX2 share the same TX. That is, during WLAN sensing measurement, the TX sends a WLAN sensing frame to the object to be sensed, and RX1 and RX2 receive feedback from the object, thereby realizing WLAN sensing measurement. Multi-station systems can function similarly to dual-station collaboration; for example, in a multi-station system, one TX corresponds to two RXs (e.g., ...). Figure 3 (b) RX1 and RX2 are shown; however, embodiments of this disclosure are not limited thereto, and one TX site may correspond to more than one RX.
[0043] according to Figure 3 (b) In bi-station and multi-station systems, some stations can act as RX and some as TX, and the directionality of RX and TX needs to be determined in order to sense objects. However, current research shows that the methods for WLAN sensing measurement in bi-station and multi-station systems are not yet perfect.
[0044] In view of this, a communication method and communication apparatus for WLAN sensing measurement according to embodiments of the present disclosure are provided.
[0045] Figure 4 This is a flowchart illustrating a communication method according to an example embodiment. Figure 4 The communication method shown can be applied to a first device. This first device can be any station in a two-station or multi-station system. For example, the first device can be a sender and / or a receiver, and specific role information about the first device can be identified by the first information described below.
[0046] Reference Figure 4 In step 410, the first device determines the first message frame; in step 420, the first device sends the first message frame. According to embodiments of this disclosure, the first message frame may carry information about execution... Figure 4 The communication method includes information about the first device, and the first message frame can have any type, which is not limited in this disclosure. For example, but not limited to, when executing... Figure 4 When the first device in the communication method is the sender and the sender is also the initiator of WLAN sensing, the first message frame can be a WLAN sensing establishment message frame.
[0047] In the embodiments of this disclosure, the first device can determine the first message frame in many ways. For example, the first message frame can be generated or configured based on at least one of the following: channel state, network conditions, load conditions, device hardware capabilities, service type, and relevant protocol specifications; this disclosure does not impose specific limitations on this. In the embodiments of this disclosure, the first device can also obtain the first message frame from an external device; this disclosure does not impose specific limitations on this.
[0048] For example, the first message frame may include first information for identifying the first device. For example, the first information may define operating parameters of the first device in WLAN sensing measurements. According to one embodiment of this disclosure, the first information may include first identification information for identifying the first device as a receiver and / or sender of a WLAN sensing frame.
[0049] In other words, the first information in the first message frame can identify the execution. Figure 4 In the communication method, the first device acts as a receiver or a sender in WLAN sensing measurement, or both. In embodiments of this disclosure, WLAN sensing measurement can be performed using WLAN sensing frames. For example, a sender (TX) sends a WLAN sensing frame to an object, and a receiver (RX) receives feedback from the object via the WLAN sensing frame, thereby obtaining the WLAN sensing measurement result. As a non-limiting embodiment, the WLAN sensing frame can be a beam refinement protocol (BRP) frame. For example, a training field (TRN) can be carried in the BRP frame. Specifically, a first identification information can be identified by a bit in the first message frame; for example, when the bit is "1", the first device is identified as TX; when the bit is "0", the first device is identified as RX. For example, the first identification information can be identified by two bits in the first message frame. For instance, the first bit of the two bits identifies RX, and the second bit of the two bits identifies TX. For example, but not limited to, when the first bit is "1", it indicates that the first device can act as RX; when the second bit is "1", it indicates that the first device can act as TX; and when both the first bit and the second bit are "1", it can indicate that the first device can act as both RX and TX.
[0050] According to another embodiment of this disclosure, the first information in the first message frame may further include: first directional information of the antenna of the first device. For example, when the first identification information indicates that the first device is TX, the first directional information may indicate the directionality of the first device transmitting BRP frames (or BRP request frames); when the first identification information indicates that the first device is RX, the first directional information may indicate the directionality of the first device receiving BRP frames (or BRP request frames). In embodiments of this disclosure, the first directional information may refer to information such as the azimuth angle, elevation angle (or radiation pattern), and / or power of the antenna of the first device.
[0051] The first information in the first message frame (e.g., first identification information and first directionality information) can be determined and sent during the establishment of WLAN sensing measurements. According to... Figure 2 In this embodiment, a WLAN sensing session establishment may include one or more WLAN sensing measurement establishments, and one or more WLAN sensing measurement establishments may include one or more bursts. A burst may include one or more WLAN sensing measurement events (sensing instances). The first identification information and the first directionality information may be the same or different in different WLAN sensing measurement establishments, the same or different in the same WLAN sensing measurement establishment, the same or different in different bursts, and the same or different in the same burst. Therefore, the first identification information and the first directionality information can correspond to the WLAN establishment identifier, the burst identifier, and the WLAN sensing measurement event identifier.
[0052] Specifically, the first information in the first message frame may further include: a first WLAN sensing measurement establishment identifier and a first burst identifier, wherein the first identification information and the first directionality information may correspond to the first WLAN sensing measurement establishment identifier and the first burst identifier.
[0053] For example, the first identification information and the first directionality information may be established differently for different WLAN sensing measurements, or for different bursts. The first information can be as shown in Table 1 below.
[0054] Table 1
[0055] Measurement setup ID1 Burst ID1 RX / TX1 Direction1 Burst ID2 RX / TX2 Direction2 …
[0056] In Table 1, the first information may include a first WLAN sensing measurement setup identifier (Measurement setupID1, etc.), a first burst identifier (Burst ID1, Burst ID2, etc.) corresponding to the first WLAN sensing measurement setup identifier, a first identification information (RX / TX1) and a first directionality information (Direction1) corresponding to the first burst identifier Burst ID1, and a first identification information (RX / TX2) and a first directionality information (Direction2) corresponding to the first burst identifier Burst ID2, etc.
[0057] For example, if the first identification information is different in the same burst or the first directionality information is different in the same burst, the first information may further include a first WLAN sensing measurement event identifier, wherein the first identification information and the first directionality information may correspond to the first WLAN sensing measurement event identifier. As a non-limiting embodiment, the first information may have the format shown in Table 2 below.
[0058] Table 2
[0059]
[0060] In Table 2, the first information may include a first WLAN sensing measurement setup identifier (Measurement setupID1, etc.), a first burst identifier (Burst ID1, etc.) corresponding to the first WLAN sensing measurement setup identifier, a first WLAN sensing measurement event identifier (Instance ID11, Instance ID12, etc.) corresponding to the first burst identifier Burst ID1, a first identification information (RX / TX11) and a first directionality information (Direction11) corresponding to the first WLAN sensing measurement event identifier Instance ID11, and a first identification information (RX / TX12) and a first directionality information (Direction12) corresponding to the first WLAN sensing measurement event identifier Instance ID12, etc.
[0061] It will be understood that the first information shown in Tables 1 and 2 is merely exemplary and this disclosure is not limited thereto. For example, each of Tables 1 and 2 may include more information, or some information may be omitted from each of Tables 1 and 2.
[0062] For example, each of Tables 1 and 2 may also include: more first WLAN sensing measurement setup identifiers (e.g., may be identified as Measurement setup ID2, Measurement setup ID3, etc.) and their respective first burst identifiers, first WLAN sensing measurement event identifiers, first identification information, and / or first directionality information.
[0063] For example, each of Tables 1 and 2 may also include: one or more WLAN sensing session establishment identifiers and their corresponding WLAN sensing measurement establishment identifiers, etc.
[0064] For example, when only one WLAN sensing measurement setup is included, the first WLAN sensing measurement setup identifier (Measurement setup ID1) can be omitted from Tables 1 and 2.
[0065] For example, when the WLAN sensing measurement establishment includes only one burst or the first and second identification information are the same in different bursts, the first burst identifier (Burst ID1, Burst ID2, etc.) can be omitted from Table 1 and Table 2.
[0066] For example, when the first identification information and the first directionality information are the same in the same burst, the first WLAN sensing measurement event identifier (Instance ID11, Instance ID12, etc.) can be omitted from Table 2.
[0067] For example, if the relative positions of the other party are known in advance before the WLAN sensing measurement is established, the first directional information can be omitted from Tables 1 and 2. For example, the initiator (or sender) and the responder (or receiver) can estimate (e.g., roughly estimate) their relative positions using the FTM (Fine Timing Measurement) protocol or information from a local server before the WLAN sensing measurement is established. If the estimated relative positions are sufficient for the WLAN sensing measurement, the first directional information can be omitted from Tables 1 and 2. If the estimated relative positions are insufficient for the WLAN sensing measurement, more precise antenna directional information can be determined during the establishment of the WLAN sensing measurement and included in the first message frame for transmission.
[0068] Will understand, Figure 4 The communication methods shown are merely exemplary, and this disclosure is not limited thereto. For example, Figure 5 A flowchart of a communication method according to an example embodiment is shown. Figure 5 Steps 510 and 520 in the text can be related to... Figure 4Steps 410 and 420 are the same, and for the sake of brevity, their repeated descriptions are omitted.
[0069] exist Figure 5 In step 530, the first device can receive a second message frame from the second device. For example, the second message frame may be a feedback frame to the first message frame; however, this disclosure is not limited thereto, and the second message frame may also be any type of message frame containing information about the second device. According to embodiments of this disclosure, the second message frame may include second information for identifying the second device. For example, the second information may define operating parameters of the second device in WLAN sensing measurements. For example, the second information may include: second identification information for identifying the second device as a receiver and / or sender of WLAN sensing frames. For another example, the second information may also include: second directivity information of the second device's antenna. For another example, the second information may also include: a second WLAN sensing measurement establishment identifier and a second burst identifier, wherein the second identification information and the second directivity information may correspond to the second WLAN sensing measurement establishment identifier and the second burst identifier. For another example, if the second information differs in the same burst or if the second directivity information differs in the same burst, the second information may also include a second WLAN sensing measurement event identifier, wherein the second information and the second directivity information may correspond to the second WLAN sensing measurement event identifier.
[0070] In the embodiments of this disclosure, the second information regarding the second device (e.g., second identification information, second directionality information, second WLAN sensing measurement establishment identifier, second burst identifier, second WLAN sensing measurement event identifier) can be substantially similar to the first information regarding the first device (e.g., first identification information, first directionality information, first WLAN sensing measurement establishment identifier, first burst identifier, first WLAN sensing measurement event identifier). That is, except that Tables 1 and 2 should refer to the second device rather than the first device, the embodiments described with reference to Tables 1 and 2 can be applied to the second information regarding the second device; to avoid redundancy, repeated descriptions are omitted here.
[0071] In accordance with embodiments of this disclosure Figure 4 and Figure 5 The described communication method enables information exchange between a first device and a second device.
[0072] For example, this information exchange can define the roles of RX and TX; that is, the exchanged information can include role information for RX and TX. Specifically, within a burst (containing multiple WLAN sensing measurement events) and / or within a sensing measurement (containing multiple bursts), the device is designated as RX (the role of receiving BRP frames + TRN) and TX (the role of sending BRP frames + TRN); or the receiving / transmitting roles are different / the same in different bursts; or the receiving / transmitting roles may be the same in the same burst. For example, two bits can be used to identify the role information, such as the first bit identifying RX and the second bit identifying TX.
[0073] For example, this information exchange can also include the exchange of directional information between the RX and TX antennas; that is, the exchanged information can also include the directional information of the RX and TX antennas. Specifically, in one burst or different bursts, the STA (sender / initiator) identifying the TX role and the STA (receiver / responder) identifying the RX role can use different directional antennas to transmit / receive BRP frame information. For example, the sender can use "directionality 1" to transmit a BRP request frame, and the receiver can use "directionality 5" to receive a BRP request frame. For example, but not limited to, "directionality 1" can include the azimuth, elevation direction (or radiation pattern), and / or power of the sender's antenna; "directionality 5" can include the azimuth, elevation direction (or radiation pattern), and / or power of the receiver's antenna.
[0074] According to embodiments of this disclosure, the aforementioned information exchange can be performed during the WLAN sensing establishment process. The information can correspond one-to-one with the WLAN sensing measurement establishment identifier and the burst identifier; if the TX / RX antenna directivity information used in the same burst is different, the exchanged information can also include the WLAN sensing measurement event identifier.
[0075] According to embodiments of this disclosure, before using the more detailed antenna directivity information in the above-described interactive information, the sender (or initiator) and receiver (or responder) can roughly estimate their relative positions using the FTM protocol or information from a local server.
[0076] Figure 6 It illustrates the information exchange and sensing measurement process between the sender and receiver.
[0077] Reference Figure 6 During WLAN awareness establishment, information about STA1 being the sender (TX) and STA2 being the receiver (RX) can be exchanged through steps S610 and S620. For example, STA1 can execute... Figure 4The communication method allows the first identification information in the first message frame to identify the first device (STA1) as the sender; in this case, the first device (STA1) can receive the second message frame from the second device (STA2), and the second identification information in the second message frame can identify the second device (STA2) as the receiver. For example, STA2 can perform... Figure 4 The communication method allows the first identification information in the first message frame to identify the first device (STA2) as the receiver. In this case, the first device (STA2) can receive the second message frame from the second device (STA1), and the second identification information in the second message frame can identify the second device (STA1) as the sender. Furthermore, although not shown, directional information of STA1 and STA2, and / or corresponding WLAN sensing measurement establishment identifiers, burst identifiers, WLAN sensing measurement event identifiers, etc., can also be exchanged in S610 and S620.
[0078] In WLAN sensing measurements, TX (STA1) can send a BPR frame (BRP request) (S630) to RX (STA2), which can be configured as follows: Figure 3 As shown in (b), the object reaches RX (STA2); RX can receive BRP frames, perform sensing measurements, and provide feedback to TX (BPR response) (S640).
[0079] In addition, although Figure 6 Only one device (STA2) is shown as the receiver, but this disclosure is not limited to this. Multiple devices may exist as receivers to interact with the sender (STA1) and perform sensing measurements.
[0080] Figure 7 This is a flowchart illustrating another communication method according to an example embodiment. Figure 7 The communication method shown can be applied to a second device. This second device can be any station in a two-station or multi-station system, and it can communicate with the executing... Figure 4 and Figure 5 The first device is relative to the communication method. For example, when executing Figure 4 When the first device in the communication method is the sender, the following steps are performed: Figure 7 The second device in the communication method can be the receiver; when executing Figure 4 When the first device in the communication method is the receiver, the following steps are performed: Figure 7 The second device in the communication method can be the sender.
[0081] Reference Figure 7In step 710, the second device can receive a first message frame from the first device. The first message frame may include first information identifying the first device, wherein the first information may include first identification information identifying the first device as a receiver and / or sender of a WLAN sensing frame. According to embodiments of this disclosure, the WLAN sensing frame may be a BRP frame.
[0082] According to embodiments of this disclosure, the first information may further include: first directivity information of the antenna of the first device.
[0083] According to embodiments of this disclosure, the first information may further include: a first WLAN sensing measurement establishment identifier and a first burst identifier, wherein the first identification information and the first directionality information may correspond to the first WLAN sensing measurement establishment identifier and the first burst identifier.
[0084] According to embodiments of this disclosure, when the first identification information is different in the same burst or when the first directionality information is different in the same burst, the first information may further include a first WLAN sensing measurement event identifier, wherein the first identification information and the first directionality information may correspond to the first WLAN sensing measurement event identifier.
[0085] The aforementioned first message frame, BRP frame, first information, first identification information, first directionality information, first WLAN sensing measurement establishment identifier, first burst identifier, and first WLAN sensing measurement event identifier can be similar to those described above. Figure 4 For the sake of brevity, repeated descriptions are omitted from the described embodiments.
[0086] In step 720, the second device can obtain first information from the first message frame. For example, the second device that receives the first message frame can parse the first message frame and obtain first information about the first device, thereby using the first information to identify the operating parameters of the first device in subsequent WLAN sensing.
[0087] Will understand, Figure 7 The communication methods shown are merely exemplary, and this disclosure is not limited thereto. For example, in situations such as... Figure 8 In the flowchart of the communication method shown, steps 810 and 820 can be combined with... Figure 7 Steps 710 and 720 are the same, and for the sake of brevity, their repeated descriptions are omitted.
[0088] In step 830, the second device may determine the second message frame; in step 840, the second device may send the second message frame. According to embodiments of this disclosure, the second message frame may include second information for identifying the second device.
[0089] According to embodiments of this disclosure, the second information may include: second identification information for identifying the second device as a receiver and / or sender of a WLAN sensing frame.
[0090] According to embodiments of this disclosure, the second information may further include: second directional information of the antenna of the second device.
[0091] According to embodiments of this disclosure, the second information may further include: a second WLAN sensing measurement establishment identifier and a second burst identifier, wherein the second identification information and the second directionality information may correspond to the second WLAN sensing measurement establishment identifier and the second burst identifier.
[0092] According to embodiments of this disclosure, when the second identification information is different in the same burst or when the second directionality information is different in the same burst, the second information may further include a second WLAN sensing measurement event identifier, wherein the second information and the second directionality information may correspond to the second WLAN sensing measurement event identifier.
[0093] The aforementioned second message frame, BRP frame, second information, second identification information, second directionality information, second WLAN sensing measurement establishment identifier, second burst identifier, and second WLAN sensing measurement event identifier can be similar to those described above. Figure 5 For the sake of brevity, repeated descriptions are omitted from the described embodiments.
[0094] The communication method according to embodiments of this disclosure defines operating parameters in the measurement process under DMG / EDMG application scenarios, thereby adapting to the needs of WLAN sensing.
[0095] Figure 9 This is a block diagram illustrating a communication device according to an example embodiment. Figure 9 The communication device 900 may include a processing module 910 and a transceiver module 920.
[0096] According to one embodiment of this disclosure, Figure 9 The communication device 900 shown can be applied to the first device to perform... Figure 4 and Figure 5The communication method is illustrated. For example, the first device may include a communication device 900. For example, the processing module 910 may be configured to: determine a first message frame; the transceiver module 920 may be configured to: send the first message frame, wherein the first message frame may include: first information for identifying the first device, wherein the first information may include: first identification information for identifying the first device as a receiver or sender of a WLAN sensing frame. Furthermore, the transceiver module 920 may also be configured to: receive a second message frame from a second device, wherein the second message frame may include second information for identifying the second device, wherein the second information may include: second identification information for identifying the second device as a receiver and / or sender of a WLAN sensing frame. The aforementioned first message frame, first information, second information, etc., may be similar to those described in the reference. Figure 4 and Figure 5 For the sake of brevity, repeated descriptions are omitted from the described embodiments.
[0097] According to another embodiment of this disclosure, Figure 9 The communication device 900 shown can be applied to a second device to perform... Figure 7 and Figure 8 The communication method is illustrated. For example, the second device may include a communication device 900. For example, the transceiver module 920 may be configured to: receive a first message frame from the first device, wherein the first message frame may include: first information for identifying the operating parameters of the first device in WLAN sensing measurement, wherein the first information may include: first identification information for identifying the first device as a receiver or sender of the WLAN sensing frame; the processing module 910 may be configured to: obtain the first information from the first message frame. Furthermore, the processing module 910 may also be configured to: determine a second message frame, and the transceiver module 920 may also be configured to: send the second message frame. The second message frame may include second information for identifying the second device, wherein the second information may include: second identification information for identifying the second device as a receiver and / or sender of the WLAN sensing frame. The aforementioned first message frame, first information, second information, etc., may be similar to those described in the reference. Figure 7 and Figure 8 For the sake of brevity, repeated descriptions are omitted from the described embodiments.
[0098] also, Figure 9 The communication device 900 shown can be applied to Figure 6 STA1 or STA2 in the system performs information exchange and WLAN sensing measurement processes.
[0099] Will understand, Figure 9The communication device 900 shown is merely exemplary, and the embodiments disclosed herein are not limited thereto. For example, the communication device 900 may also include other modules, such as a memory module. Furthermore, the various modules in the communication device 900 may be combined into more complex modules, or may be divided into more individual modules.
[0100] The communication method and communication device according to the embodiments of this disclosure define the operating parameters in the measurement process under the DMG / EDMG application scenario, and improve the WLAN sensing measurement method in dual-station and multi-station systems, thereby adapting to the needs of WLAN sensing.
[0101] Based on the same principles as the methods provided in the embodiments of this disclosure, embodiments of this disclosure also provide a communication device, which includes a processor and a memory; wherein the memory stores machine-readable instructions (also referred to as a "computer program"); the processor is used to execute the machine-readable instructions to implement the reference. Figures 4 to 8 The method described.
[0102] Embodiments of this disclosure also provide a computer-readable storage medium storing a computer program that, when executed by a processor, implements a reference... Figures 4 to 8 The method described.
[0103] In exemplary embodiments, the processor may be a variety of exemplary logic blocks, modules, and circuits described in connection with this disclosure, such as a CPU (Central Processing Unit), a general-purpose processor, a DSP (Digital Signal Processor), an ASIC (Application Specific Integrated Circuit), a FPGA (Field Programmable Gate Array), or other programmable logic devices, transistor logic devices, hardware components, or any combination thereof. The processor may also be a combination that implements computational functions, such as a combination of one or more microprocessors, a combination of a DSP and a microprocessor, etc.
[0104] In the example embodiment, the memory may be, for example, ROM (Read Only Memory), RAM (Random Access Memory), EEPROM (Electrically Erasable Programmable Read Only Memory), CD-ROM (Compact Disc Read Only Memory) or other optical disc storage, optical disk storage (including compressed optical discs, laser discs, optical discs, digital universal optical discs, Blu-ray discs, etc.), magnetic disk storage media or other magnetic storage devices, or any other medium that can be used to carry or store program code in the form of instructions or data structures and that can be accessed by a computer, but is not limited thereto.
[0105] It should be understood that although the steps in the flowcharts of the accompanying figures are shown sequentially as indicated by the arrows, these steps are not necessarily executed in the order indicated by the arrows. Unless explicitly stated herein, there is no strict order restriction on the execution of these steps, and they can be executed in other orders. Furthermore, at least some steps in the flowcharts of the accompanying figures may include multiple sub-steps or multiple stages. These sub-steps or stages are not necessarily completed at the same time, but can be executed at different times, and their execution order is not necessarily sequential, but can be performed alternately or in turn with other steps or at least some of the sub-steps or stages of other steps.
[0106] While this disclosure has been shown and described with reference to certain embodiments thereof, those skilled in the art will understand that various changes in form and detail may be made without departing from the scope of this disclosure. Therefore, the scope of this disclosure should not be limited to the embodiments, but rather should be defined by the appended claims and their equivalents.
Claims
1. A communication method for sensing and measurement in a wireless local area network, comprising: The first device determines the first message frame; The first device sends the first message frame. The first message frame includes: first information for identifying the first device, wherein the first information includes: first identification information for identifying the first device as a receiver and / or sender of a wireless local area network sensing frame; The first information also includes: the first directivity information of the antenna of the first device.
2. The communication method according to claim 1, wherein, The first information also includes: a first wireless LAN sensing measurement establishment identifier and a first burst identifier. Wherein, the first identification information and the first directionality information correspond to the first wireless local area network sensing measurement establishment identifier and the first burst identifier.
3. The communication method according to claim 2, wherein, In cases where the first identification information differs within the same incident, or where the first directional information differs within the same incident, the first information further includes a first wireless local area network sensing measurement event identifier. Wherein, the first identification information and the first directionality information correspond to the first wireless local area network sensing measurement event identifier.
4. The communication method according to any one of claims 1 to 3, further comprising: The first device receives the second message frame from the second device. The second message frame includes second information for identifying the second device, wherein the second information includes second identification information for identifying the second device as a receiver and / or sender of a wireless LAN sensing frame.
5. The communication method according to claim 4, wherein, The second information also includes: second directivity information of the antenna of the second device.
6. The communication method according to claim 5, wherein, The second information also includes: a second wireless LAN sensing measurement establishment identifier and a second burst identifier. Wherein, the second identification information and the second directionality information correspond to the second wireless LAN sensing measurement establishment identifier and the second burst identifier.
7. The communication method according to claim 6, wherein, In cases where the second information differs within the same burst, or where the second directional information differs within the same burst, the second information further includes a second wireless LAN sensing measurement event identifier. The second information and the second directionality information correspond to the second wireless LAN sensing measurement event identifier.
8. The communication method according to claim 1, wherein The wireless LAN sensing frame is a beam refinement protocol frame.
9. A communication method for wireless local area network (WLAN) sensing, comprising: The second device receives a first message frame from the first device, wherein the first message frame includes: first information for identifying the first device, wherein the first information includes: first identification information for identifying the first device as a receiver and / or sender of a wireless LAN sensing frame; the first information further includes: first directivity information of the antenna of the first device; The second device obtains the first information from the first message frame.
10. The communication method according to claim 9, wherein, The first information also includes: a first wireless LAN sensing measurement establishment identifier and a first burst identifier. Wherein, the first identification information and the first directionality information correspond to the first wireless local area network sensing measurement establishment identifier and the first burst identifier.
11. The communication method according to claim 10, wherein If the first identification information differs within the same incident, or if the first directional information differs within the same incident, the first information further includes a first wireless local area network sensing measurement event identifier. Wherein, the first identification information and the first directionality information correspond to the first wireless local area network sensing measurement event identifier.
12. The communication method according to any one of claims 9 to 11, further comprising: The second device sends a second message frame. The second message frame includes second information for identifying the second device, wherein the second information includes second identification information for identifying the second device as a receiver and / or sender of a wireless LAN sensing frame.
13. The communication method according to claim 12, wherein, The second information also includes: second directivity information of the antenna of the second device.
14. The communication method according to claim 13, wherein The second information also includes: a second wireless LAN sensing measurement establishment identifier and a second burst identifier. Wherein, the second identification information and the second directionality information correspond to the second wireless LAN sensing measurement establishment identifier and the second burst identifier.
15. The communication method according to claim 14, wherein, In cases where the second identification information differs within the same burst, or where the second directional information differs within the same burst, the second information further includes a second wireless LAN sensing measurement event identifier. The second information and the second directionality information correspond to the second wireless LAN sensing measurement event identifier.
16. The communication method according to claim 9, wherein The wireless LAN sensing frame is a beam refinement protocol frame.
17. A communication device for wireless local area network sensing, comprising: The processing module is configured to: determine the first message frame; The transceiver module is configured to send the first message frame. The first message frame includes: first information for identifying a first device including the communication device, wherein the first information includes: first identification information for identifying the first device as a receiver and / or sender of a wireless local area network sensing frame; The first information also includes: the first directivity information of the antenna of the first device.
18. A communication device for wireless local area network sensing, comprising: The transceiver module is configured to receive a first message frame from a first device, wherein the first message frame includes: first information for identifying the first device, wherein the first information includes: first identification information for identifying the first device as a receiver and / or sender of a wireless local area network sensing frame; the first information further includes: first directivity information of the antenna of the first device; The processing module is configured to: obtain the first information from the first message frame.
19. A communication device comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein, When the processor executes the computer program, it implements the method described in any one of claims 1 to 8 or any one of claims 9 to 16.
20. A computer readable storage medium, wherein, The computer-readable storage medium stores a computer program that, when executed by a processor, implements the method described in any one of claims 1 to 8 or any one of claims 9 to 16.