Communication method and communication device

Abstract

The present disclosure provides a communication method and a communication device. The communication method includes: determining a first message frame, where the first message frame includes a first sub-domain, where the first sub-domain is used to identify information of a long training field in a second message frame, and the long training field is used for channel measurement; and sending the first message frame.

Description

Technical Field

[0001] The present disclosure relates to the field of wireless communication, and more particularly, to a communication method and a communication device. Background Art

[0002] Wireless Local Area Network (WLAN) has the characteristics of flexibility, mobility, and low cost. With the development of communication technology and the growth of user needs, the research on the application of WLAN is being gradually deepened. For example, currently, research is being conducted on WLAN sensing, and its main application scenarios include: location discovery in dense environments (home and enterprise environments), proximity detection, and presence detection, etc. Summary of the Invention

[0003] Various embodiments of the present disclosure provide the following technical solutions:

[0004] According to an exemplary embodiment of the present disclosure, a communication method is provided. The communication method may include: determining a first message frame, where the first message frame includes a first sub - domain, and the first sub - domain is used to identify information of a long training field in a second message frame, and the long training field is used for channel measurement; and sending the first message frame.

[0005] According to an exemplary embodiment of the present disclosure, a communication method is provided. The communication method may include: receiving a first message frame, where the first message frame includes a first sub - domain, and the first sub - domain is used to identify information of a long training field in a second message frame, and the long training field is used for channel measurement; and obtaining the information of the long training field in the second message frame based on the first message frame.

[0006] According to an exemplary embodiment of the present disclosure, a communication device is provided. The communication device may include: a processing module configured to determine a first message frame, where the first message frame includes a first sub - domain, and the first sub - domain is used to identify information of a long training field in a second message frame, and the long training field is used for channel measurement; and a transceiver module configured to send the first message frame.

[0007] According to an exemplary embodiment of the present disclosure, a communication device is provided. The communication device may include: a transceiver module configured to receive a first message frame, where the first message frame includes a first sub-domain for identifying information of a long training field in a second message frame, and the long training field is used for channel measurement; and a processing module configured to obtain the information of the long training field in the second message frame based on the first message frame.

[0008] According to an exemplary embodiment of the present disclosure, an electronic device is provided. The electronic device includes a memory, a processor, and a computer program stored on the memory and executable on the processor. When the processor executes the computer program, the above-described method is implemented.

[0009] According to an exemplary embodiment of the present disclosure, a computer-readable storage medium is provided. A computer program is stored on the computer-readable storage medium. When the computer program is executed by a processor, the above-described method is implemented.

[0010] The technical solution provided by the exemplary embodiment of the present disclosure improves the definition of the number of LTFs in the sensing measurement process to meet the requirements of WLAN sensing measurement. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] By referring to the accompanying drawings and describing the exemplary embodiments of the present disclosure in detail, the above and other features of the embodiments of the present disclosure will become more apparent, where:

[0012] Figure 1 is an exemplary manner of showing WLAN sensing.

[0013] Figure 2 is a flowchart showing a communication method according to an exemplary embodiment.

[0014] Figure 3 is a flowchart showing the TB-based sensing manner according to an exemplary embodiment.

[0015] Figure 4 is a flowchart showing the Non-TB based sensing manner according to an exemplary embodiment.

[0016] Figure 5 is a flowchart showing another communication method according to an exemplary embodiment.

[0017] Figure 6 is a block diagram showing a communication device according to an exemplary embodiment. DETAILED DESCRIPTION

[0018] The following description with reference to the accompanying drawings is provided to assist in a comprehensive understanding of various embodiments of the present disclosure defined by the appended claims and their equivalents. The various embodiments of the present disclosure include various specific details, but these specific details are only considered exemplary. In addition, descriptions of well-known technologies, functions, and configurations may be omitted for clarity and conciseness.

[0019] The terms and words used in the present disclosure are not limited to their literal meanings, but are only used by the inventors to enable a clear and consistent understanding of the present disclosure. Therefore, for those skilled in the art, the description of the various embodiments of the present disclosure is only for illustrative purposes and not for restrictive purposes.

[0020] It should be understood that unless the context clearly indicates otherwise, the singular forms "a", "an", "the", and "said" used herein may also include the plural forms. It should be further understood that the phrase "comprising" used in the present disclosure means the presence of the described features, integers, steps, operations, elements, and / or components, but does not exclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and / or groups thereof.

[0021] 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. Thus, without departing from the teachings of the exemplary embodiments, the first element discussed below may be referred to as the second element.

[0022] It should be understood that when an element is referred to as "connected" or "coupled" to another element, it may be directly connected or coupled to other elements, or there may also be intermediate elements. In addition, the "connection" or "coupling" used herein may include a wireless connection or wireless coupling. The term "and / or" or the expression "at least one of / at least one of..." used herein includes any and all combinations of one or more of the related listed items.

[0023] Unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the present disclosure belongs.

[0024] Figure 1 is an exemplary manner of showing WLAN awareness.

[0025] The process of WLAN awareness may be as follows: The initiator initiates WLAN awareness (e.g., initiates a WLAN awareness session), and there may be multiple responders responding to it. The specific possible ways may be as Figure 1 shown in (a), (b), and (c) therein.

[0026] Referring to Figure 1 In (a) of, when a WLAN awareness initiator (e.g., a client) initiates WLAN awareness, multiple associated or non-associated WLAN awareness responders (e.g., three access points (APs, access point)) can respond. Here, "associated" can mean that an association connection for communication is established between the initiator and the responder, and "non-associated" can mean that no association connection for communication is established between the initiator and the responder.

[0027] As an example, a client can include but is not limited to: cellular phones, smart phones, 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.

[0028] An AP can be a wireless switch for a wireless network or an access device for a wireless network. An AP can include software applications and / or circuits to enable other types of nodes in the wireless network to communicate with the outside and inside of the wireless network through the AP. As an example, an AP can be a terminal device or a network device equipped with a Wi-Fi (Wireless Fidelity) chip.

[0029] Figure 1 In (b) of is similar to Figure 1 In (a) of, but in Figure 1 In (b) of, the responders (APs) can communicate with each other.

[0030] Referring to Figure 1 In (c) of, both the WLAN awareness initiator and the responder of WLAN awareness can be clients, and the two can communicate by connecting to the same AP.

[0031] Although in Figure 1 In (a), (b), and (c) of, a client is shown as the initiator and an AP is shown as the responder, however, the present disclosure is not limited thereto. For example, in various embodiments of the present disclosure, an AP can be the initiator and a client can be the responder. In addition, in various embodiments of the present disclosure, a client can also be referred to as a non-AP station (non-AP STA), simply referred to as "station (STA)". In addition, the number of initiators and responders is not limited to Figure 1 That shown in (a), (b), and (c) of.

[0032] As an illustrative embodiment, the process of WLAN awareness may include: WLAN awareness session establishment, WLAN awareness measurement establishment, and WLAN awareness measurement termination. In WLAN awareness session establishment, operation parameters associated with the awareness session may be determined and exchanged between devices. In WLAN awareness measurement establishment, awareness measurements and / or reporting of measurement results may be performed, so WLAN awareness measurement establishment may also be referred to as the WLAN awareness measurement process. In WLAN awareness measurement termination, the device stops performing measurements and terminates the awareness session.

[0033] In addition, in the technology of WLAN awareness, a trigger-based (TB-based) awareness method and a non-trigger-based (Non-TB based) awareness method have been proposed. For example, the TB-based awareness method is in the form of being triggered by a Null Data Packet Announcement (NDPA) frame and a trigger frame, with the AP as the initiator; the Non-TB based awareness method is in the form of NDPA, with the Station (STA) as the initiator. In addition, both the TB-based awareness method and the Non-TB based awareness method use a Null Data Packet (NDP) frame as the awareness measurement frame to participate in awareness measurements.

[0034] In the TB-based scenario, NDP frames are all awareness measurement frames participating in awareness measurements. In the Non-TB based scenario, for the sake of maintaining protocol completeness, UL NDP frames or DL NDP frames that do not participate in awareness measurements may be sent in uplink awareness measurement (UL sounding) or downlink awareness measurement (DL sounding).

[0035] In current research, the long training field (LTF) in the NDP frame is mainly used for channel measurement, and the LTF is also reused for awareness measurement during the awareness measurement process. However, currently, there is a lack of clear regulations on the LTF in the NDP frame for both the Non-TB based awareness method and the TB-based awareness method, so signaling enhancement is required.

[0036] In view of this, a communication method and a communication device are provided according to the concept of the embodiments of the present disclosure.

[0037] Figure 2 It is a flowchart showing a communication method according to an exemplary embodiment. Figure 2The communication method shown can be applied to an access point (AP) or a non - access - point station (abbreviated as: station "STA").

[0038] Referring to Figure 2 , in step 210, a first message frame is determined. The first message frame may include a first sub - domain, where the first sub - domain is used to identify information about the long training field (LTF) in the second message frame, and the long training field is used for channel measurement; in step 220, the first message frame is sent.

[0039] In the embodiments of the present disclosure, there are many ways to determine the first message frame. For example, the first message frame can be generated or configured according to at least one of the following conditions: channel state, network situation, load situation, hardware capabilities of the sending / receiving device, service type, relevant protocol regulations; the embodiments of the present disclosure do not make specific limitations on this. In the embodiments of the present disclosure, the first message frame can also be obtained from an external device, and the embodiments of the present disclosure do not make specific limitations on this.

[0040] In the embodiments of the present disclosure, the first message frame can be an NDPA frame or a sensing measurement trigger frame (which can also be abbreviated as "trigger frame" hereinafter). The second message frame may carry a long training field. For example, hereinafter, for the convenience of description, an NDP frame is used as an example of the second message frame. However, the present disclosure is not limited thereto, and other frames carrying LTF are also feasible. Tables 1 and 2 below show the formats of two NDP frames only as examples.

[0041] Table 1: HE sounding NDP frame format

[0042]

[0043] Table 2: HE Ranging NDP frame format

[0044]

[0045] Table 1 shows the HE (High Efficiency) sounding NDP frame format, and Table 2 shows the HE ranging NDP frame format. "HE-LTF" in Table 1 and "HE-LTF1" to "HE-LTF n" in Table 2 may refer to the long training field in the second message frame in the above embodiments. In addition, referring to Table 1 and Table 2, the NDP frame may further include: a conventional short training field (L-STF), a conventional long training field (L-LTF), a conventional signaling field (L-SIG), a repeated conventional signaling field (RL-SIG), an HE signaling field (HE-SIG-A), and an HE short training field (HE-STF), as well as a packet extension field (PE, packet extension), etc. However, this is only exemplary, and the present disclosure is not limited thereto.

[0046] It will be understood that although the formats of the available NDP frames are indicated in Table 1 and Table 2 above, these are only exemplary, and the present disclosure is not limited thereto. For example, EHT (Extreme High-Throughput) sounding NDP frames, etc., are also applicable to various exemplary embodiments of the present disclosure.

[0047] According to an embodiment of the present disclosure, the first subfield in the first message frame may be a long training field repetition (LTFrepetition) subfield, which is used to identify the number of LTFs in the second message frame. In other words, the information (e.g., the number of LTFs) of the LTF (such as "HE-LTF" in Table 1 and "HE-LTF 1" to "HE-LTF n" in Table 2) in the second message frame (NDP frame) can be identified in the first message frame (NDPA frame or sensing measurement trigger frame). The first subfield (i.e., the LTF repetition subfield) can increase the signal-to-noise ratio (SNR), which is very important for sensing measurement applications. In addition, pre-identifying the information of the LTF (e.g., the number of LTFs) in the second message frame in the first message frame is beneficial to ensuring the secure reception and correct parsing of the signaling during the sensing measurement process. For example, ensuring the security of the LTF, so that a consistency check can be performed in channel estimation to detect security attacks.

[0048] In an embodiment of the present disclosure, the value of the first subfield (i.e., the number of LTFs) can be set / determined based on the sensing mode (TB-based or Non-TB based) or whether the second message frame (NDP frame) participates in the sensing measurement.

[0049] According to an embodiment of the present disclosure, a first message frame (NDPA frame or sensing measurement trigger frame) may include a second subfield, where the second subfield may be used to identify an identifier of a device to which the first subfield is to be applied, and the second subfield may correspond to the first subfield. For example, the first message frame may include one or more first subfields and their respective corresponding second subfields, so as to identify the information of the LTF in the second message frame of one or more devices.

[0050] For example, when the first subfield is to be applied to a station (STA), the identifier may identify the station (STA). For example, the identifier may be an AID or a UID. The AID may represent an identifier of a station that has established an associated communication with an AP, and the UID represents an identifier of a station that has not established an associated communication with the AP. For example, when the first subfield is to be applied to an access point (AP), the identifier may identify the access point (AP). For example, the identifier may be a special AID. For example but not limited to, a special AID with a value of 0 is used to identify the AP.

[0051] In addition, in an alternative embodiment, the first message frame (NDPA frame or sensing measurement trigger frame) may include a station information (STA info) field, and the above-mentioned first subfield and second subfield may be included in the station information field. For example, an LTF repetition subfield may be included in the station information field, which identifies the number of LTFs included in the NDP frame in the sensing measurement. In addition, the LTF repetition subfield may correspond to an identifier of the STA, where the identifier may be an AID (established association) or a UID (not established association). For example, in a non-TB based sensing measurement, the corresponding station information field may be used for the AP, and the AID may be a special AID, for example, 0.

[0052] The communication method according to an embodiment of the present disclosure improves the definition of the number of LTFs during the sensing measurement process to meet the requirements of WLAN sensing measurement.

[0053] Figure 3 It is a flowchart showing a TB-based sensing method according to an exemplary embodiment.

[0054] According to an embodiment of the present disclosure, during a trigger-based sensing measurement process (i.e., in a TB-based sensing method), a second message frame (e.g., an NDP frame) may participate in the sensing measurement and a first message frame (e.g., an NDPA frame or a sensing measurement trigger frame) may identify that the number of LTFs in the second message frame is at least 1.

[0055] In the TB-based sensing method, the WLAN sensing measurement process may include three steps: polling, measurement, and feedback. In the polling step, the initiator (AP) may send a poll frame to check the availability of the responder (one or more STAs); if the STA is available, it may report a response frame (e.g., CTS-to-self). In the measurement step, the NDPA sounding method (hereinafter referred to as "NDPA sounding" or "NDPA detection") and / or the TF (trigger frame) sounding method (hereinafter referred to as "TF sounding" or "TF detection") may be used. In the feedback step, the sensing measurement results, e.g., channel state information (CSI), may be fed back. Figure 3 Fig. (a) shows the flowchart of NDPA detection. Figure 3 Fig. (b) shows the flowchart of TF detection.

[0056] Referring to Figure 3 Fig. (a), in the case of NDPA detection, the initiator (AP) may send an NDPA frame and an NDP frame to the responder (STA), where the NDPA frame may correspond to the first message frame in the above embodiments, and the NDP frame may correspond to the second message frame in the above embodiments. The NDPA frame may identify the number of LTFs in the NDP frame. The responder (STA) may receive the NDPA frame and the NDP frame, and perform WLAN sensing measurement using the NDP frame, and then report the sensing measurement results (e.g., CSI) to the initiator (AP). For example, the responder (STA) may parse the NDPA frame to learn the number of LTFs identified in the NDP frame, and may parse the NDP frame to check whether the number of LTFs received in the NDP frame is the same as the number identified in the NDPA frame. Here, the NDP frame may participate in the sensing measurement, so the number identified in the NDPA frame may be set to at least 1.

[0057] In an alternative embodiment, in Figure 3 Fig. (a), the NDPA frame may further include an identifier of the initiator (AP) (e.g., a special AID) to identify that the number of LTFs identified in the NDPA frame is applied to the AP (e.g., applied to the NDP frame sent by the AP).

[0058] Referring to Figure 3In (b) above, in the case of TF detection, the initiator (AP) may send a trigger frame (i.e., a sensing measurement trigger frame) to the responder (STA), and then the responder (STA) may send an NDP frame to the initiator (AP), so that the initiator (AP) may use the NDP frame for WLAN sensing measurement. The trigger frame (i.e., the sensing measurement trigger frame) may correspond to the first message frame in the above embodiments, and the NDP frame may correspond to the second message frame in the above embodiments. The trigger frame (i.e., the sensing measurement trigger frame) may identify the number of LTFs in the NDP frame. The responder (STA) may parse the trigger frame (i.e., the sensing measurement trigger frame) to know the number of LTFs in the identified NDP frame, and may include the identified number of LTFs in the NDP frame. The initiator (AP) may check whether the number of LTFs in the received NDP frame is the same as the number identified by the first subfield of the NDPA frame when receiving the NDP frame. Here, the NDP frame may participate in the sensing measurement. Therefore, the number identified in the NDPA frame may be set to at least 1.

[0059] In an alternative embodiment, in Figure 3 (b) above, the trigger frame (i.e., the sensing measurement trigger frame) may further include an identifier (AID or UID) of the responder (STA) to identify that the number of LTFs identified in the NDPA frame is applied to the STA (e.g., applied to the NDP frame sent by the STA).

[0060] Although only one responder (STA) is shown in Figure 3 (a) and (b) above, however, the present disclosure is not limited thereto, and there may be one or more responders (STA). In this case, for each of the one or more responders (STA), in the NDPA frame or the trigger frame, the number of LTFs in the NDP frame and the identifier of the device to which the identified number of LTFs is applied are respectively identified.

[0061] For example, in the TB-based sensing measurement process described with reference to Figure 3 (a) and (b) above, whether in the NDPA frame or in the trigger frame, at least one station information field may be included, where the station information field may include an LTF repetition subfield, and the number set therein may be at least 1 to identify the number of LTFs in the subsequent NDP frames participating in the sensing measurement.

[0062] Figure 4 is a flowchart showing a Non-TB based sensing method according to an exemplary embodiment.

[0063] According to an embodiment of the present disclosure, in a non-trigger-based sensing measurement process (i.e., in a Non-TB based sensing manner), when the second message frame (e.g., NDP frame) participates in the sensing measurement, the first message frame (e.g., NDPA frame) may identify that the number of LTFs in the second message frame is at least 1; when the second message frame (e.g., NDP frame) does not participate in the sensing measurement, the first sub-domain (e.g., NDPA frame) may identify that the number of LTFs in the second message frame is 1. However, the present disclosure is not limited thereto, and the number of LTFs identified in the first message frame may be set to different values according to whether the second message frame participates in the sensing measurement. For example, the number of LTFs identified when participating in the sensing measurement may be set to be greater than the number of LTFs identified when not participating in the reference measurement.

[0064] In a Non-TB based sensing manner, a station (STA) sends an NDPA frame to an AP for a sensing measurement process. For example, in a Non-TB based sensing manner, the WLAN sensing measurement process may include an uplink sensing measurement (which may also be referred to as uplink sounding "UL sounding") or a downlink sensing measurement (which may also be referred to as downlink sounding "DL sounding"), or both coexist. Figure 4 (a) of shows a flowchart of uplink sounding, Figure 4 (b) of shows a flowchart of downlink sounding.

[0065] Referring to Figure 4 (a) of, the uplink sounding may include: the initiator (STA) sends an NDPA frame and an NDP frame (shown as "UL NDP") to the responder (AP), and the AP uses the UL NDP to perform WLAN sensing measurement. In addition, after receiving the NDP frame from the STA, the AP also sends an NDP frame (shown as "DL NDP"), but this NDP frame (DL NDP frame) is not used for WLAN sensing measurement, but only to indicate that it has received the NDPA frame and the NDP frame from the STA. Here, the NDPA frame may correspond to the first message frame in the above embodiment, and the UL NDP and the DL NDP may correspond to the second message frame in the above embodiment. In the uplink sounding, the UL NDP sent by the initiator (STA) participates in the sensing measurement. Therefore, for the initiator (STA), the number of LTFs identified in the NDPA frame may be set to at least 1; however, the DL NDP sent by the responder (AP) does not participate in the sensing measurement. Therefore, for the responder (AP), the number of LTFs identified in the NDPA frame may be set to 1.

[0066] In an alternative embodiment, in Figure 4In (a) of, the NDPA frame may include a station information field about the STA and a station information field about the AP. Among them, the station information field about the STA may include: the number of LTFs in the UL NDP and the identifier of the STA (e.g., AID or UID); the station information field about the AP may include: the number of LTFs in the DL NDP and the identifier of the AP (e.g., special AID).

[0067] Referring to Figure 4 In (b) of, the downlink detection may include: the initiator (STA) sends an NDPA frame and an NDP frame (shown as "UL NDP") to the responder (AP), and the AP sends an NDP frame (shown as "DL NDP") to the STA. Thus, the STA uses the received NDP frame for WLAN sensing measurement. However, the NDP frame (UL NDP) sent by the STA is not used for WLAN sensing measurement, but only for the purpose of protocol integrity. Here, the NDPA frame may correspond to the first message frame in the above embodiment, and the UL NDP and DL NDP may correspond to the second message frame in the above embodiment. In the downlink detection, the UL NDP sent by the initiator (STA) does not participate in the sensing measurement. Therefore, for the initiator (STA), the number of LTFs identified in the NDPA frame may be set to 1; however, the DL NDP sent by the responder (AP) participates in the sensing measurement. Therefore, for the responder (AP), the number of LTFs identified in the NDPA frame may be set to at least 1.

[0068] In an alternative embodiment, the NDPA frame may include a station information field about the STA and a station information field about the AP. Among them, the station information field about the STA may include: the number of LTFs in the UL NDP and the identifier of the STA (e.g., AID or UID); the station information field about the AP may include: information about the number of LTFs in the DL NDP and the identifier of the AP (e.g., special AID).

[0069] For example, in the Non-TB based sensing process referring to Figure 4 In (a) and (b) of, if the NDP frame participates in the sensing measurement, the number identified by the LTF repetition subfield in the station information field of the NDPA frame may be set to at least 1; if the NDP frame does not participate in the sensing measurement, the number identified by the LTF repetition subfield in the station information field of the NDPA frame may be set to 1.

[0070] According to an embodiment of the present disclosure, the number of LTFs in an NDP frame (e.g., the LTF repetition subfield) may be included in an NDPA frame (Non-TB based or TB-based) or a sensing measurement trigger frame (TB-based), so that sensing measurement resources can be allocated to STAs or APs participating in the measurement, rather than being included in a polling frame or a sensing measurement report frame. This can clearly identify the number of LTFs in the subsequently transmitted NDP frame in the NDPA frame or the sensing measurement trigger frame, which helps the secure reception and correct parsing of the signaling.

[0071] The communication method according to an embodiment of the present disclosure improves the definition of the number of LTFs in the Non-TB based sensing mode and the TB-based sensing mode, making it adapt to the requirements of WLAN sensing measurement.

[0072] Figure 5 It is a flowchart showing another communication method according to an exemplary embodiment. Figure 5 The shown communication method can be applied to an access point (AP) or a non-access point station (abbreviation: station "STA").

[0073] Refer to Figure 5 , in step 510, a first message frame may be received, where the first message frame may include a first subfield, where the first subfield is used to identify information about the long training field in the second message frame, and the long training field is used for channel measurement; in step 520, the first message frame may be parsed, more specifically, information about the long training field in the second message frame may be obtained based on the first message frame.

[0074] According to an embodiment of the present disclosure, the first message frame may be an NDPA frame or a sensing measurement trigger frame.

[0075] According to an embodiment of the present disclosure, the second message frame may be an NDP frame.

[0076] According to an embodiment of the present disclosure, the first subfield may be a long training field repetition subfield, which is used to identify the number of long training fields in the second message frame.

[0077] According to an embodiment of the present disclosure, the first message frame may include a second subfield, where the second subfield is used to identify an identifier of a device to which the first subfield is to be applied, and the second subfield corresponds to the first subfield.

[0078] According to an embodiment of the present disclosure, during the trigger-based sensing measurement process, the second message frame may participate in the sensing measurement and the number identified by the first subfield may be set to at least 1.

[0079] According to an embodiment of the present disclosure, in a non-trigger-based sensing measurement process, when the second message frame participates in the sensing measurement, the number identified by the first subdomain can be set to at least 1; when the second message frame does not participate in the sensing measurement, the number identified by the first subdomain can be set to 1.

[0080] The descriptions of the first message frame, the second message frame, the NDPA frame, the sensing measurement trigger frame, the first subdomain, the second subdomain, etc. can be similar to those in the various embodiments above. For the sake of brevity, the repeated descriptions are omitted here.

[0081] Figure 6 is a block diagram showing a communication device according to an exemplary embodiment. Figure 6 The communication device 600 may include a processing module 610 and a transceiver module 620.

[0082] In Figure 6 The shown communication device 600 can be applied to a device (AP or STA) that sends the first message frame. In this case, the processing module 610 can be configured to: determine the first message frame, where the first message frame may include a first subdomain, where the first subdomain is used to identify information about the long training field in the second message frame, and the long training field is used for channel measurement; the transceiver module 620 can be configured to: send the first message frame. That is, Figure 6 The shown communication device 600 can perform the communication method described with reference to Figure 2 and Figure 3 and Figure 4 the operations performed by the device that sends the NDPA frame or the trigger frame, and the embodiments described with reference to Table 1 and Table 2, etc. can be applied here. For the sake of avoiding redundancy, the repeated descriptions are omitted here.

[0083] In Figure 6 When the shown communication device 600 can be applied to receive the first message frame, the transceiver module 620 can be configured to: receive the first message frame, where the first message frame includes a first subdomain, where the first subdomain is used to identify information about the long training field in the second message frame, and the long training field is used for channel measurement; the processing module 610 can be configured to: obtain the information about the long training field in the second message frame based on the first message frame. That is, Figure 6 The shown communication device 600 can perform the communication method described with reference to Figure 5 and Figure 3 and Figure 4 the operations performed by the device that receives the NDPA frame or the trigger frame, and the embodiments described with reference to Table 1 and Table 2 can be applied here. For the sake of avoiding redundancy, the repeated descriptions are omitted here.

[0084] It will be understood that Figure 6The illustrated communication device 600 is merely exemplary, and embodiments of the present disclosure are not limited thereto. For example, the communication device 600 may further include other modules, such as a memory module. In addition, each module in the communication device 600 may be combined into a more complex module or divided into more separate modules.

[0085] The communication method and communication device according to the embodiments of the present disclosure improve the definition of the number of LTFs during the sensing measurement process to meet the requirements of WLAN sensing measurement.

[0086] Based on the same principle as the method provided by the embodiments of the present disclosure, the embodiments of the present disclosure also provide an electronic device, which includes a processor and a memory; wherein, machine-readable instructions (which may also be referred to as "computer programs") are stored in the memory; the processor is configured to execute the machine-readable instructions to implement the method described with reference to Figures 2 to 5 the description.

[0087] The embodiments of the present disclosure also provide a computer-readable storage medium, on which a computer program is stored. When the computer program is executed by a processor, the method described with reference to Figures 2 to 5 the description is implemented.

[0088] In an exemplary embodiment, the processor may be used to implement or execute various exemplary logic blocks, modules, and circuits described in connection with the present disclosure. For example, a CPU (Central Processing Unit), a general-purpose processor, a DSP (Digital Signal Processor), an ASIC (Application Specific Integrated Circuit), an 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 a computing function, such as a combination of one or more microprocessors, a combination of a DSP and a microprocessor, etc.

[0089] In an exemplary embodiment, the memory may be, for example, a ROM (Read Only Memory), a RAM (Random Access Memory), an EEPROM (Electrically Erasable Programmable Read Only Memory), a CD-ROM (Compact Disc Read Only Memory), or other optical disc storage, optical disc storage (including compact discs, laser discs, optical discs, digital versatile 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 can be accessed by a computer, but is not limited thereto.

[0090] It should be understood that although the steps in the flowcharts of the accompanying drawings are shown sequentially as indicated by the arrows, these steps are not necessarily executed in the order indicated by the arrows. Unless otherwise specified herein, there is no strict order restriction for the execution of these steps, and they can be executed in other orders. In addition, at least a part of the steps in the flowcharts of the accompanying drawings may include multiple sub-steps or multiple stages. These sub-steps or stages are not necessarily executed at the same time, but can be executed at different times, and their execution order is not necessarily sequential, but can be executed alternately or in turn with at least a part of other steps or sub-steps or stages of other steps.

[0091] Although the present 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 therein without departing from the scope of the present disclosure. Therefore, the scope of the present disclosure should not be limited to the embodiments, but should be defined by the appended claims and their equivalents.

Claims

1. A communication method, comprising: Determining a first message frame, wherein the first message frame includes a first sub - domain, wherein the first sub - domain is used to identify information of a long training field in a second message frame, wherein the long training field is used for channel measurement, and wherein the first sub - domain is a long training field repetition sub - domain for identifying the number of long training fields in the second message frame; Transmitting the first message frame.

2. The communication method according to claim 1, wherein, The first message frame includes a second sub - domain, wherein the second sub - domain is used to identify an identifier of a device to which the first sub - domain is to be applied, and wherein the second sub - domain corresponds to the first sub - domain.

3. The communication method according to claim 1, wherein, During a trigger - based sensing measurement process, the second message frame participates in the sensing measurement and the number identified by the first sub - domain is set to be at least 1.

4. The communication method according to claim 1, wherein, During a non - trigger - based sensing measurement process, when the second message frame participates in the sensing measurement, the number identified by the first sub - domain is set to be at least 1; When the second message frame does not participate in the sensing measurement, the number identified by the first sub - domain is set to 1.

5. The communication method according to claim 1, wherein, The first message frame is an empty data packet announcement NDPA frame or a sensing measurement trigger frame.

6. A communication method, comprising: Receiving a first message frame, wherein the first message frame includes a first sub - domain, wherein the first sub - domain is used to identify information of a long training field in a second message frame, wherein the long training field is used for channel measurement, and wherein the first sub - domain is a long training field repetition sub - domain for identifying the number of long training fields in the second message frame; Obtaining the information of the long training field in the second message frame based on the first message frame.

7. The communication method according to claim 6, wherein, The first message frame includes a second sub - domain, wherein the second sub - domain is used to identify an identifier of a device to which the first sub - domain is to be applied, and wherein the second sub - domain corresponds to the first sub - domain.

8. The communication method according to claim 6, wherein, During a trigger - based sensing measurement process, the second message frame participates in the sensing measurement and the number identified by the first sub - domain is set to be at least 1.

9. The communication method according to claim 6, wherein During a non - trigger - based sensing measurement process, when the second message frame participates in the sensing measurement, the number identified by the first sub - domain is set to be at least 1; When the second message frame does not participate in the sensing measurement, the number identified by the first sub - domain is set to 1.

10. The communication method according to claim 6, wherein, The first message frame is an empty data packet announcement NDPA frame or a sensing measurement trigger frame.

11. A communication device, comprising: A processing module, configured to: determine a first message frame, wherein the first message frame includes a first sub - domain, wherein the first sub - domain is used to identify information of a long training field in a second message frame, wherein the long training field is used for channel measurement, and wherein the first sub - domain is a long training field repetition sub - domain for identifying the number of long training fields in the second message frame; A transceiver module, configured to: transmit the first message frame.

12. A communication device, comprising: A transceiver module, configured to: receive a first message frame, wherein the first message frame includes a first sub-domain, wherein the first sub-domain is used to identify information of a long training field in a second message frame, wherein the long training field is used for channel measurement, and wherein the first sub-domain is a long training field repetition sub-domain for identifying the number of long training fields in the second message frame; A processing module, configured to: obtain information of the long training field in the second message frame based on the first message frame.

13. An electronic device, comprising a memory, a processor, and a computer program stored on the memory and executable on the processor, wherein, When the processor executes the computer program, the method according to any one of claims 1 to 5 or any one of claims 6 to 10 is implemented.

14. A computer-readable storage medium, wherein, A computer program is stored on the computer-readable storage medium, and when the computer program is executed by a processor, the method according to any one of claims 1 to 5 or any one of claims 6 to 10 is implemented.

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