Communication method, device and system

Abstract

A communication method, device and system can be applied to the technical field of communication. The method can be applied to an IEEE 802.11 series protocol, such as an 802.11 bf protocol or an 802.11 ax next generation Wi-Fi protocol or an IEEE 802.11 be next generation Wi-Fi protocol or Wi-Fi AI or integrated millimeter wave (IMMW) or ultra wide band (UWB) and the like. For example, an initiator sends a measurement request frame and receives a measurement response frame. Correspondingly, the response end can receive the measurement request frame and send a measurement response frame. The measurement request frame may include a hybrid probe mode field that may be used to indicate a measurement mode of a measurement session initiated by the measurement request frame. The hybrid probing mode field may flexibly indicate a measurement mode.

Description

Technical Field

[0001] The present application relates to the field of communication technology, and in particular to a communication method, device, and system. Background Art

[0002] The Institute of Electrical and Electronics Engineers (IEEE) 802.11bf is a next-generation wireless standard focused on sensing passive objects (i.e., targets without any devices). 802.11bf includes two broad categories: low-frequency (e.g., below 7 GHz, primarily implemented using 802.11ac, 802.11ax, 802.11be, 802.11bn, and future generations) and high-frequency (e.g., greater than or equal to 60 GHz, primarily implemented using 802.11ad, 802.11ay, and future generations).

[0003] In the 802.11bf standard, sensing devices can estimate parameters (such as speed, distance, and angle) of perceived targets based on received signals. The estimated results can be used for subsequent motion / behavior recognition. In existing solutions, due to the significant difference in bandwidth between high-frequency and low-frequency bands, the high-frequency and low-frequency sensing processes are performed independently, meaning each has its own independent and complete sensing process.

[0004] However, the perceptual performance of the above schemes needs to be improved. Summary of the Invention

[0005] The embodiments of the present application provide a communication method, device, and system that can improve the flexibility of the perception process and enhance perception performance.

[0006] In a first aspect, an embodiment of the present application provides a communication method, which is applied to an initiating end and includes:

[0007] The initiator sends a measurement request frame, where the measurement request frame is used to initiate a measurement session and includes a hybrid detection mode field, where the hybrid detection mode field is used to indicate a measurement mode of the measurement session; and receives a measurement response frame corresponding to the measurement request frame.

[0008] In an embodiment of the present application, when the above-mentioned communication method is applied to a perception communication method, the initiator may be referred to as a perception initiator; when the above-mentioned communication method is applied to a ranging communication method, the initiator may be referred to as a ranging initiator. Similarly, when the above-mentioned communication method is applied to different methods, the names of the measurement request frame or the measurement session may all be different. For example, when the above-mentioned communication method is applied to a perception communication method, the above-mentioned measurement request frame may be referred to as a perception measurement request frame, and the measurement session may be referred to as a perception measurement session. When the above-mentioned communication method is applied to a ranging communication method, the above-mentioned measurement request frame may be referred to as a ranging measurement request frame or an initial fine timing measurement request (IFTMR) frame, and the measurement session may be referred to as a ranging measurement session or a fine timing measurement session (FTM session).

[0009] In an embodiment of the present application, the measurement mode may indicate whether the frames involved in the measurement session are transmitted at a high frequency or a low frequency. Alternatively, the measurement mode may indicate which frames in the measurement session are transmitted at a high frequency and which frames are transmitted at a low frequency. Alternatively, the measurement mode may indicate the transmission frequency band of the frames involved in the measurement interaction of the measurement session. The transmission frequency band may include the first frequency band or the second frequency band.

[0010] In the embodiment of the present application, the measurement request frame can flexibly indicate the measurement mode of the measurement session by including the hybrid detection mode field, so that the responding end can clearly and effectively know the measurement mode of the measurement session initiated by the initiating end, thereby improving the perception performance.

[0011] In a second aspect, an embodiment of the present application provides a communication method, which is applied to a responding end and includes:

[0012] The responding end receives a measurement request frame, where the measurement request frame is used to initiate a measurement session and includes a hybrid detection mode field, where the hybrid detection mode field is used to indicate a measurement mode of the measurement session; and sends a measurement response frame in response to the measurement request frame.

[0013] For the description of the second aspect, please refer to the first aspect to the first aspect, and will not be described in detail here.

[0014] In combination with the first aspect or the second aspect, in one possible implementation, when the value of the hybrid detection mode field is a first value, the first value indicates that the PPDU in the polling phase of the measurement session, the NDPA frame in the NDPA detection phase of the measurement session, and the PPDU in the reporting phase of the measurement session are transmitted in the first frequency band; or, the first value indicates that the perception PPDU or ranging PPDU in the NDPA detection phase of the measurement session and the PPDU in the TF detection phase of the measurement session are transmitted in the second frequency band.

[0015] In combination with the first aspect or the second aspect, in one possible implementation, when the value of the hybrid detection mode field is a second value, the second value indicates that the PPDU in the polling phase of the measurement session and the NDPA frame in the NDPA detection phase of the measurement session are transmitted in the first frequency band; or, the second value indicates that the perception PPDU or ranging PPDU in the NDPA detection phase of the measurement session, the PPDU in the TF detection phase of the measurement session, and the PPDU in the reporting phase of the measurement session are transmitted in the second frequency band.

[0016] In combination with the first aspect or the second aspect, in a possible implementation, when the value of the hybrid detection mode field is a third value, the third value indicates that the PPDU in the polling phase of the measurement session is transmitted in the first frequency band; or, the third value indicates that the PPDU in the NDPA detection phase of the measurement session, the PPDU in the TF detection phase of the measurement session, and the PPDU in the reporting phase of the measurement session are transmitted in the second frequency band.

[0017] In combination with the first aspect or the second aspect, in a possible implementation manner, when the value of the hybrid probing mode field is a fourth value, the fourth value indicates that the PPDU in each phase of the measurement session is transmitted in the second frequency band.

[0018] In combination with the first aspect or the second aspect, in a possible implementation, when the value of the hybrid detection mode field is the fifth value, the fifth value indicates that the PPDU in the polling phase of the measurement session, the NDPA frame in the NDPA detection phase of the measurement session, the detection trigger frame in the TF detection phase of the measurement session, and the PPDU in the reporting phase of the measurement session are transmitted in the first frequency band; or, the fifth value indicates that the perception PPDU (or ranging PPDU) in the NDPA detection phase of the measurement session and the perception PPDU (or ranging PPDU) in the TF detection phase of the measurement session are transmitted in the second frequency band.

[0019] With reference to the first aspect or the second aspect, in a possible implementation manner, the measurement request frame further includes one or more link identification fields, where the link identification fields are used to indicate a link corresponding to the measurement session.

[0020] With reference to the first aspect or the second aspect, in a possible implementation manner, the multiple link identification fields are used to indicate multiple links corresponding to the measurement session.

[0021] Exemplarily, the multiple links may be links used to transmit a first frame in a perception measurement session, where the first frame is a frame involved in the measurement session. Exemplarily, some of the multiple links may be used to transmit the first frame at a low frequency, or some of the multiple links may be used to transmit the first frame at a high frequency.

[0022] In combination with the first aspect or the second aspect, in one possible implementation, the first frame includes at least one of the following: a measurement request frame, a measurement response frame, a polling frame, a CTS-to-self frame, an NDPA frame, a first PPDU, a detection trigger frame, a second PPDU, a report trigger frame, and a report frame.

[0023] In combination with the first aspect or the second aspect, in a possible implementation manner, the measurement request frame further includes one or more channel identification fields, where the channel identification field is used to indicate a channel corresponding to the measurement session.

[0024] In combination with the first aspect or the second aspect, in a possible implementation manner, the measurement request frame further includes one or more frequency band identification fields, where the frequency band identification field is used to indicate a frequency band corresponding to the measurement session.

[0025] In combination with the first aspect or the second aspect, in a possible implementation, the measurement request frame also includes a transmit beam list or a receive beam list, the transmit beam list is used to indicate the index of the transmit beam used by the responding end in the measurement session, or used to indicate the index of the transmit beam used by the initiating end in the measurement session, and the receive beam list is used to indicate the index of the receive beam used by the responding end in the measurement session, or used to indicate the index of the receive beam used by the initiating end in the measurement session.

[0026] In an embodiment of the present application, the transmitting beam may be a beam used by the responding end or the initiating end in a measurement session to send a perception PPDU or a ranging PPDU, and the receiving beam may be a beam used by the responding end or the initiating end in a measurement session to receive a perception PPDU or a ranging PPDU.

[0027] In combination with the first aspect or the second aspect, in a possible implementation manner, the measurement response frame includes a hybrid probing mode field, where the hybrid probing mode field is used to indicate a measurement mode supported by the responding end.

[0028] Whether the value of the hybrid probing mode field in the measurement request frame is the same as the value of the hybrid probing mode field in the measurement response frame is not limited in this embodiment of the present application.

[0029] In combination with the first aspect, in a possible implementation manner, the method further includes: the initiator sending a perception NDPA frame.

[0030] In combination with the second aspect, in a possible implementation manner, the method further includes: the responding end receiving a perception NDPA frame.

[0031] In combination with the first aspect or the second aspect, in one possible implementation, the perception NDPA frame includes a beam indication field, and the beam indication field is used to indicate the index of the transmitting beam, or the index of the receiving beam, the transmitting beam is the beam used by the initiator to send the perception PPDU, and the receiving beam is the beam used by the initiator to receive the perception PPDU, and the perception PPDU is a PPDU used for perception.

[0032] Exemplarily, the beam indication field in the perception NDPA frame can be used to indicate the index of the transmit beam used by the perception initiator in the NDPA detection phase corresponding to the perception NDPA frame (that is, the NDPA detection phase involved in the perception NDPA frame), or the index of the receive beam used by the perception responder. In the NDPA detection phase, the perception initiator can serve as the perception transmitter, and the perception responder can serve as the perception receiver.

[0033] In this embodiment of the present application, the perception NDPA frame may also simultaneously indicate the transmit beam index and receive beam index. By indicating to the responding end: the transmit beam index used by the initiating end and / or the receive beam index used by the responding end, the responding end can obtain the transmit beam index used by the responding end based on the transmit beam and / or the receive beam.

[0034] In combination with the first aspect or the second aspect, in a possible implementation manner, the perception NDPA frame includes a switching field, and the switching field is used to indicate whether the initiator performs frequency band switching after sending the perception NDPA frame.

[0035] In combination with the first aspect or the second aspect, in a possible implementation, the perception NDPA frame includes a count field, and the count field is used to indicate the number of perception NDPA frames to be sent by the initiator (or the number of perception NDPA frames to be sent, or the number of perception NDPA frames to be sent subsequently).

[0036] In combination with the first aspect or the second aspect, in a possible implementation, the perception NDPA frame includes a total number field and a sequence field, the total number field is used to indicate the total number of perception NDPA frames sent by the initiator in the measurement interaction corresponding to the perception NDPA frame in the measurement session, and the sequence field is used to indicate the order of the perception NDPA frame in the total number.

[0037] In combination with the first aspect, in a possible implementation manner, the method further includes: the initiator sending a detection trigger frame.

[0038] In combination with the second aspect, in a possible implementation manner, the method further includes: the responding end receiving a detection trigger frame.

[0039] In combination with the first aspect or the second aspect, in one possible implementation, the detection trigger frame includes a beam indication field, and the beam indication field is used to indicate the index of the transmitting beam, and the transmitting beam is a beam used by the responding end to send the perception PPDU, and the perception PPDU is a PPDU used for perception.

[0040] In an embodiment of the present application, the beam indication field in the detection trigger frame can be used to indicate the index of the transmit beam used by the perception responding end in the TF detection phase corresponding to the detection trigger frame. In the TF detection phase, the perception responding end can serve as the perception transmitting end, and the perception initiating end can serve as the perception receiving end. As described above, the beam indication field can also be used to indicate the index of the receive beam used by the perception initiating end in the TF detection phase corresponding to the detection trigger frame. Thus, the perception responding end can determine the index of the transmit beam used by the perception responding end based on the index of the receive beam of the perception initiating end.

[0041] In a third aspect, an embodiment of the present application provides an initiating terminal configured to execute the method in the first aspect or any possible implementation. The perception initiating terminal includes a module configured to execute the method in the first aspect or any possible implementation.

[0042] In a fourth aspect, an embodiment of the present application provides a responding end configured to execute the method in the second aspect or any possible implementation. The sensing initiating end includes a module configured to execute the method in the second aspect or any possible implementation.

[0043] In a fifth aspect, an embodiment of the present application provides an initiator, comprising a processor configured to execute the method described in the first aspect or any possible implementation. The processor is configured to execute a program stored in a memory, and when the program is executed, the method described in the first aspect or any possible implementation is executed.

[0044] In a possible implementation, the memory is located outside the initiator.

[0045] In a possible implementation, the memory is located within the initiator.

[0046] In an embodiment of the present application, the processor and the memory may also be integrated into one device, that is, the processor and the memory may also be integrated together.

[0047] In a possible implementation, the initiator further includes a transceiver, and the transceiver is used to receive information or send information.

[0048] In a sixth aspect, embodiments of the present application provide a response terminal, comprising a processor configured to execute the method described in the second aspect or any possible implementation. The processor is configured to execute a program stored in a memory, and when the program is executed, the method described in the second aspect or any possible implementation is executed.

[0049] In a possible implementation, the memory is located outside the response end.

[0050] In a possible implementation, the memory is located within the response end.

[0051] In the embodiment of the present application, the processor and the memory may also be integrated into one device, that is, the processor and the memory may also be integrated together.

[0052] In a possible implementation, the responding end further includes a transceiver, and the transceiver is used to receive information or send information.

[0053] In the seventh aspect, an embodiment of the present application provides an initiator, which includes a logic circuit and an interface, and the logic circuit and the interface are coupled; the interface is used to input and / or output information, and the logic circuit is used to execute the method described in the first aspect or any possible implementation method.

[0054] In an eighth aspect, an embodiment of the present application provides a response end, which includes a logic circuit and an interface, and the logic circuit and the interface are coupled; the interface is used to input and / or output information, and the logic circuit is used to execute the method described in the second aspect or any possible implementation method.

[0055] In the ninth aspect, an embodiment of the present application provides a computer-readable storage medium, which is used to store a computer program. When the computer-readable storage medium is run on a computer, the method shown in any one of the above-mentioned first to second aspects or any possible implementation method is executed.

[0056] In a tenth aspect, an embodiment of the present application provides a computer program product, which, when executed on a computer, enables the method shown in any one of the first to second aspects or any possible implementation thereof to be executed.

[0057] In an eleventh aspect, an embodiment of the present application provides a computer program. When the computer program is run on a computer, the method shown in any one of the first to second aspects or any possible implementation is executed.

[0058] In the twelfth aspect, an embodiment of the present application provides a communication system, which includes an initiating end and a responding end, the initiating end is used to execute the method shown in the above-mentioned first aspect or any possible implementation of the first aspect, and the responding end is used to execute the method shown in the above-mentioned second aspect or any possible implementation of the second aspect. BRIEF DESCRIPTION OF THE DRAWINGS

[0059] Figure 1 This is a schematic diagram of the architecture of the communication system provided in an embodiment of the present application;

[0060] Figure 2a to Figure 2d This is a schematic diagram of the format of the perception PPDU provided in an embodiment of the present application;

[0061] Figure 3 This is a schematic diagram of the stages of the perception process provided by the embodiment of the present application;

[0062] Figure 4 This is a flow chart of TB perception measurement interaction provided by an embodiment of the present application;

[0063] Figure 5 This is a flowchart of the non-TB perception measurement interaction provided by an embodiment of the present application;

[0064] Figure 6a Schematic diagram of the SBP process provided in the embodiment of the present application;

[0065] Figure 6b This is a flow chart of the non-TB ranging measurement interaction provided by the embodiment of the present application.

[0066] Figure 7 This is a schematic diagram of the format of the IMMW perception capability element provided in an embodiment of the present application;

[0067] Figure 81 is a schematic diagram of the format of an IMMW sensing measurement parameter element (IMMW sensing measurement parameter element) in a sensing measurement request frame provided in an embodiment of the present application;

[0068] Figure 9a This is a schematic diagram of the format of the NDPA perception frame provided in an embodiment of the present application;

[0069] Figure 9b This is another format diagram of the NDPA perception frame provided in an embodiment of the present application;

[0070] Figure 9c 1 is a schematic diagram of the format of the ranging NDPA frame provided in an embodiment of the present application;

[0071] Figure 10 1 is a schematic diagram of the format of the trigger-related public information field in the detection trigger frame provided in an embodiment of the present application;

[0072] Figure 11 Schematic diagram of the format of the detection trigger frame provided in an embodiment of the present application;

[0073] Figure 12 This is a schematic diagram of the format of the NDPA perception frame provided in an embodiment of the present application;

[0074] Figure 13 This is a schematic structural diagram of a communication device provided in an embodiment of the present application;

[0075] Figure 14 This is another structural diagram of the communication device provided in an embodiment of the present application;

[0076] Figure 15 This is another structural diagram of the communication device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0077] To facilitate understanding of the technical solution of the present application, the present application will be further described below with reference to the accompanying drawings.

[0078] The terms "first" and "second" in the specification, claims, and drawings of this application are used only to distinguish different objects and are not used to describe a specific order. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions. For example, a process, method, system, product, or device that includes a series of steps or units is not limited to the listed steps or units, but may optionally include steps or units that are not listed, or may optionally include other steps or units that are inherent to the process, method, product, or device.

[0079] References to "embodiments" herein mean that a particular feature, structure, or characteristic described in connection with the embodiments may be included in at least one embodiment of the present application. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor does it refer to independent or alternative embodiments that are mutually exclusive of other embodiments. It will be understood, both explicitly and implicitly, by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0080] In this application, "at least one (item)" means one or more, "more than one" means two or more, "at least two (items)" means two or three and more than three, and "and / or" is used to describe the association relationship of associated objects, indicating that three relationships can exist. For example, "A and / or B" can mean: only A exists, only B exists, and A and B exist at the same time, where A and B can be singular or plural. "Or" means that two relationships can exist, such as only A exists, only B exists; when A and B are not mutually exclusive, it can also mean that three relationships exist, such as only A exists, only B exists, and A and B exist at the same time. The character " / " generally indicates that the previous and next associated objects are in an "or" relationship. "At least one of the following" or similar expressions refers to any combination of these items. For example, at least one of a, b or c can mean: a, b, c, "a and b", "a and c", "b and c", or "a and b and c".

[0081] In this application, "indication" may include direct indication, indirect indication, explicit indication, and implicit indication. When describing that a certain indication information is used to indicate A, it can be understood that the indication information carries A, directly indicates A, or indirectly indicates A.

[0082] In this application, the information indicated by the indication information is referred to as the information to be indicated. In the specific implementation process, there are many ways to indicate the information to be indicated, such as but not limited to, the information to be indicated can be directly indicated, such as the information to be indicated itself or the index of the information to be indicated. The information to be indicated can also be indirectly indicated by indicating other information, wherein there is an association between the other information and the information to be indicated. It is also possible to indicate only a part of the information to be indicated, while the other parts of the information to be indicated are known or agreed in advance. For example, the indication of specific information can also be achieved with the help of the arrangement order of each information agreed in advance (for example, stipulated by the protocol), thereby reducing the indication overhead to a certain extent. In addition, the information to be indicated can be sent together as a whole, or it can be divided into multiple sub-information and sent separately, and the sending period and / or sending time of these sub-information can be the same or different.

[0083] In this application, "transmit" includes sending or receiving.

[0084] In this application, "sending" and "receiving" indicate the direction of signal transmission. For example, "sending information to XX" can be understood as the destination of the information is XX, which can include direct sending through the air interface, and also include indirect sending through the air interface by other units or modules. "Receiving information from YY" can be understood as the source of the information is YY, which can include direct receiving from YY through the air interface, and also include indirect receiving from YY through the air interface from other units or modules. "Sending" can also be understood as the "output" of the chip interface, and "receiving" can also be understood as the "input" of the chip interface. In other words, sending and receiving can be carried out between devices, for example, between network devices and terminal devices, or can be carried out within a device, for example, sending or receiving between components, modules, chips, software modules or hardware modules within the device through a bus, trace or interface.

[0085] The following introduces the communication system involved in this application.

[0086] The technical solutions provided in the embodiments of the present application can be applied to wireless local area network (WLAN) systems, such as Wi-Fi or ambient power (AMP). The methods provided in the embodiments of the present application can be applied to IEEE 802.11 series protocols, such as 802.11a / b / g, 802.11bf, 802.11az, 802.11bk, 802.11n, 802.11ac, 802.11ax, 802.11be, 802.11bn or next-generation protocols, and 802.11ad, 802.11ay or next-generation protocols, which are not listed here. The technical solutions provided in the embodiments of the present application can also be applied to wireless personal area networks (WPANs) based on ultra-wideband (UWB) technology. The technical solutions provided in the embodiments of the present application can also be applied to millimeter wave (MMW) technology, including integrated millimeter wave (IMMW). For example, the method provided in the embodiments of the present application can be applied to the IEEE802.15 series protocols, such as the 802.15.4a protocol, the 802.15.4z protocol or the 802.15.4ab protocol, or a future generation of UWB WPAN protocols, etc., which are not listed one by one. The technical solutions provided in the embodiments of the present application can also be applied to the following communication systems, for example, the Internet of Things (IoT) system, the Vehicle to X (V2X), the Narrow Band Internet of Things (NB-IoT) system, the Long Term Evolution (LTE) system, the Fifth Generation (5G) communication system, and new communication systems that will emerge in the future development of communications.

[0087] WLAN systems can provide high-speed and low-latency transmission. As WLAN application scenarios continue to evolve, WLAN systems will be applied to more scenarios or industries, such as the Internet of Things industry, the Internet of Vehicles industry, the banking industry, corporate offices, sports stadiums and exhibition halls, concert halls, hotel rooms, dormitories, wards, classrooms, supermarkets, squares, streets, production workshops and warehouses, etc. Of course, devices that support WLAN communication or perception (such as access points or stations) can be sensor nodes in smart cities (such as smart water meters, smart electricity meters, and smart air detection nodes), smart devices in smart homes (such as smart cameras, projectors, displays, TVs, speakers, refrigerators, washing machines, etc.), nodes in the Internet of Things, entertainment terminals (such as wearable devices such as augmented reality (AR) and virtual reality (VR)), smart devices in smart offices (such as printers, projectors, loudspeakers, speakers, etc.), Internet of Vehicles devices, infrastructure in daily life scenarios (such as vending machines, self-service navigation counters in supermarkets, self-service checkout equipment, self-service ordering machines, etc.), and equipment in large sports and music venues.

[0088] Although the embodiments of the present application primarily use WLAN as an example, particularly networks based on the IEEE 802.11 standard, various aspects of the embodiments of the present application can be extended to other networks based on various standards or protocols, such as Bluetooth, high-performance wireless LAN (HIPERLAN) (a wireless standard similar to the IEEE 802.11 standard, primarily used in Europe), wide area networks (WANs), or other networks now known or developed in the future.

[0089] In one possible implementation, the method provided in the embodiment of the present application may be implemented by a communication device in a communication system. For example, the communication device may be an access point (AP) or a station (STA).

[0090] An access point is a device with wireless communication capabilities that supports communication or sensing using WLAN protocols. It has the ability to communicate or sense with other devices in a WLAN network (such as non-AP STAs or other access points). Of course, it can also have the ability to communicate or sense with other devices. Alternatively, an access point acts as a bridge between a wired network and a wireless network, primarily connecting wireless network clients and then connecting the wireless network to the Ethernet. In a WLAN system, an access point can be referred to as an access point station (AP STA). This device with wireless communication capabilities can be a complete device or a chip, processing system, or functional module installed in the complete device. Devices equipped with these chips, processing systems, or functional modules can implement the methods and functions of the embodiments of the present application under the control of these chips, processing systems, or functional modules. The AP in the embodiments of the present application is a device that provides services for non-AP STAs and can support the 802.11 series of protocols or subsequent protocols. For example, an access point can be an access point for a terminal (such as a mobile phone) to enter a wired (or wireless) network. It is primarily deployed in homes, buildings, and campuses, with a typical coverage radius of tens to hundreds of meters. Of course, it can also be deployed outdoors. For another example, an AP can be a communication entity such as a communication server, router, switch, or bridge; an AP can include various forms of macro base stations, micro base stations, and relay stations. Of course, an AP can also be a chip, processing system, or module in any of the aforementioned devices, thereby implementing the methods and functions of the embodiments of the present application. Of course, an AP can also include an AP belonging to a multi-link device (MLD) or a co-located AP.

[0091] A STA is a device with wireless communication capabilities that supports communication or perception using the WLAN protocol and has the ability to communicate or perceive other non-AP STAs or access points in the WLAN network. In a WLAN system, a station can be referred to as a non-access point station (non-AP STA). For example, a STA is any user communication device that allows a user to communicate or perceive with an AP and then communicate with a WLAN. The device with wireless communication capabilities can be a complete device, or a chip, processing system, or functional module installed in the complete device. The device installed with these chips, processing systems, or functional modules can implement the methods and functions of the embodiments of the present application under the control of the chip, processing system, or functional module. For example, a STA can be a wireless communication chip, a wireless sensor, or a wireless communication terminal, and can also be referred to as a user. For another example, a STA can be a mobile phone that supports Wi-Fi communication capabilities, a tablet that supports Wi-Fi communication capabilities, a set-top box that supports Wi-Fi communication capabilities, a smart TV that supports Wi-Fi communication capabilities, a smart wearable device that supports Wi-Fi communication capabilities, an in-vehicle communication device that supports Wi-Fi communication capabilities, and a computer that supports Wi-Fi communication capabilities. Of course, STA can also be a chip or processing system or module in the various forms of devices mentioned above, so as to implement the methods and functions of the embodiments of the present application. Of course, STA can also include non-APSTA or co-located STA belonging to a multi-link device (MLD).

[0092] Exemplarily, the communication system to which the method provided in the embodiments of the present application can be applied may include access points and stations. For example, the embodiments of the present application may be applicable to scenarios of communication or perception between APs and STAs, between APs and APs, or between STAs and STAs in a WLAN, and the embodiments of the present application are not limited thereto. Optionally, the AP may communicate or perceive with a single STA, or the AP may communicate or perceive with multiple STAs simultaneously. Specifically, communication or perception between the AP and multiple STAs can be further divided into downlink transmission in which the AP sends signals to multiple STAs simultaneously, and uplink transmission in which multiple STAs send signals to the AP. WLAN communication protocols may be supported between the AP and STAs, between APs and APs, and between STAs. The communication protocols may include IEEE 802.11 series protocols, such as 802.11n / 802.11ac / 802.11ax / 802.11be / 802.11bn protocols, and of course, also applicable to protocols after 802.11bn.

[0093] Figure 1Schematic diagram of the architecture of a communication system provided in an embodiment of the present application. The communication system may include one or more APs and one or more STAs. Figure 1 An access point such as AP1 and three stations such as STA1, STA2 and STA3 are shown in FIG. 1 . For example, the method provided in the embodiment of the present application can be applied to data communication between an AP and one or more STAs (such as Figure 1 The communication between AP1 and STA1 shown in FIG, or the communication between AP1 and STA1, STA2), or the communication between AP and AP (such as Figure 1 between AP1 and AP2 as shown), or, for communication between STAs (as shown Figure 1 The method provided in the embodiments of the present application may be applicable to, but not limited to, single-user uplink / downlink transmission, multi-user uplink / downlink transmission, vehicle-to-everything (V2X, where X can represent anything), and device-to-device (D2D). For example, V2X may include vehicle-to-vehicle (V2V), vehicle-to-infrastructure (V2I), vehicle-to-pedestrian (V2P), or vehicle-to-network (V2N) communications.

[0094] Understandable, Figure 1 The STA is a mobile phone and the AP is a router as an example, which does not limit the types of AP and STA in the embodiments of the present application. Figure 1 Only one AP and three STAs are shown as an example, but the number of APs or STAs can be more or less, which is not limited in the embodiments of the present application.

[0095] The following describes the method involved in this application.

[0096] The low-frequency perception process is similar to the high-frequency perception process. Generally speaking, the bandwidth of high and low frequencies differs significantly, and the high-frequency perception process is independent of the low-frequency perception process, meaning each has its own independent and complete perception process. High frequencies have a larger bandwidth, such as a channel bandwidth of 2.16 GHz (for example). This larger bandwidth provides better perception performance, such as improved range resolution and higher accuracy. In high-frequency standards, the transmission bandwidth of a PPDU (also known as a signal or OFDM symbol) can be greater than or equal to 320 MHz. However, due to the significant attenuation at high frequencies, signals are generally transmitted or received directionally. This directional transmission or reception is susceptible to obstruction and beam misalignment, which can affect the signaling interaction for perception between high frequencies. If this signaling interaction is affected, the perception measurement interaction cannot proceed and the measurement cannot be completed. Unlike high frequencies, low frequencies have relatively smaller bandwidths (for example, the maximum PPDU bandwidth in the 802.11be protocol is 320 MHz), resulting in relatively limited perception performance. However, low frequencies are generally transmitted omnidirectionally, making them less likely to be blocked. Therefore, the various frames involved in the perception measurement interaction can be transmitted efficiently. The descriptions of perception here also apply to ranging, so we will not elaborate on this here.

[0097] Considering that future devices may have both high-frequency and low-frequency communication or perception capabilities, the present application provides a perception communication method, a ranging communication method, an apparatus, and a system.

[0098] In this application, the low frequency can assist the high frequency to complete the perception measurement or ranging, or the high frequency and the low frequency can collaborate to complete the perception measurement or ranging. The collaboration between the high frequency and the low frequency can be closer, so that the respective advantages of the high and low frequencies can be effectively utilized to better support the completion of the perception measurement or ranging interaction, and improve the perception performance or ranging performance. For example, this application can improve the robustness of the perception process or the ranging process, and can make full use of the large bandwidth advantage of the high frequency to improve the accuracy of perception or ranging. In the scenario of high frequency and low frequency collaboration, this application designs signaling interaction in a high-low frequency mixed mode.

[0099] For example, the high and low frequency mixing mode may be as follows:

[0100] In at least one stage of the sensing measurement interaction process (or ranging measurement interaction process): the control frame is transmitted through a low frequency, and the sensing PPDU is transmitted through a high frequency.

[0101] Alternatively, in at least one stage of the sensing measurement interaction process (or ranging measurement interaction process): both the control frame and the sensing PPDU are transmitted via a high frequency.

[0102] Alternatively, in at least one stage of the sensing measurement interaction process (or ranging measurement interaction process), some control frames are transmitted via a low frequency, and other control frames are transmitted via a high frequency. For example, the sensing PPDU may be transmitted via a high frequency.

[0103] The description here about control frames and perception PPDU also applies to the SBP process, such as in at least one stage of the SBP process: control frames are transmitted through low frequency, and perception PPDU is transmitted through high frequency; or, both control frames and perception PPDU are transmitted through high frequency, etc., which are not listed one by one here.

[0104] Generally speaking, at different stages, at least one of the format or content of the control frame may be different. The description of the control frame and the perception PPDU here also applies to the ranging communication method and will not be repeated below.

[0105] "Transmission" as used herein may include sending or receiving. For example, transmission of a control frame via a low frequency may include a control frame transmitter sending the control frame at a low frequency, or a control frame receiver receiving the control frame at a low frequency. For another example, transmission of a perception PPDU via a high frequency may include a perception transmitter sending the perception PPDU at a high frequency, or a perception receiver receiving the perception PPDU at a high frequency. Details regarding transmission are not detailed here.

[0106] For the perception communication method, the aforementioned control frame may include but is not limited to a perception polling trigger frame (or perception polling frame), a perception NDPA frame, a perception SR2SI detection trigger frame, a perception report trigger frame, a clear to send (CTS) (CTS-to-self) frame or a report frame sent to oneself. The perception PPDU corresponding to the perception NDPA frame may include a first PPDU, and the perception PPDU corresponding to the perception SR2SI detection trigger frame may include a second PPDU. As the standard progresses, other types of control frames for perception may appear in the future, and this application does not limit this.

[0107] For the ranging communication method, the aforementioned control frame may include, but is not limited to, a ranging polling trigger frame (or ranging polling frame), a ranging NDPA frame, a detection ranging trigger frame, etc. The control frames or ranging PPDUs involved in the ranging communication method are not listed here one by one.

[0108] The description of the high and low frequency mixed mode here can be combined with the following Figure 4 and Figure 5 The perceptual measurement interactions shown, and Figure 6a The SBP process shown in FIG, and the ranging communication method shown below. The specific process of the high-low frequency mixed mode is not listed here one by one.

[0109] The names involved in this application are explained below.

[0110] 1. High frequency and low frequency

[0111] In this application, high frequency and low frequency are relative. For example, the frequency of the low frequency may be lower than the first threshold, such as lower than 7GHz (sub-7GHz), or the frequency of the low frequency may include 2.4GHz to 7.25GHz (also referred to as sub-7GHz). The frequency of the high frequency may be higher than the second threshold, such as higher than 42GHz, or the frequency of the high frequency may include 42GHz to 71GHz. The above-mentioned second threshold may be greater than the first threshold. This application does not limit the specific values ​​of the first threshold and the second threshold. Of course, with the advancement of the standard, other frequencies of high frequency and low frequency may appear in the future, and this application does not limit this.

[0112] In this application, the second frequency band corresponds to high frequency (HF), or the frequency of the high frequency shown below is the same as the frequency of the second frequency band, that is, the second frequency band can be interchangeable with the high frequency. The first frequency band can correspond to low frequency (LF), or the frequency of the low frequency shown below is the same as the frequency of the first frequency band, that is, the first frequency band can be interchangeable with the low frequency.

[0113] 2. Perception PPDU and Ranging PPDU

[0114] For the perception communication method, the PPDU used for perception in the NDPA detection phase (ie, perception PPDU) may include SI2SR NDP, etc., and the PPDU used for perception in the TF detection phase may include SR2SI NDP or SR2SR NDP, etc.

[0115] For the ranging communication method, the PPDU used for ranging in the NDPA detection phase (ie, ranging PPDU) may include R2I NDP, etc., and the PPDU used for ranging in the TF detection phase may include I2R NDP, etc.

[0116] The above-mentioned sensing PPDU or ranging PPDU is only an example. For example, the sensing PPDU or ranging PPDU may also include a data field, and the length of the data field may be less than the length threshold. This application does not limit the specific value of the length threshold.

[0117] Figure 2a to Figure 2d This is a format diagram of the perception PPDU provided in an embodiment of the present application. Figure 2a to Figure 2d The format diagram of the perception PPDU is exemplarily shown. Figure 2a to Figure 2d The sensing PPDU shown can also be applied to the ranging communication method, that is, Figure 2a-2bThe PPDU shown may also be a ranging PPDU. Figure 2a The sensing PPDU shown is shown using the high efficiency (HE) ranging NDP as an example. Figure 2b The sensing PPDU shown is shown using HE based-trigger (TB) ranging NDP as an example. Figure 2c The sensing PPDU shown is shown using an extremely high throughput (EHT) ranging NDP as an example. Figure 2d The sensing PPDU shown is shown using the EHTTB ranging NDP as an example. Figure 2c The illustrated μs per EHT-LTF may include 8 μs per EHT-LTF symbol using 2×EHT-LTF. Figure 2a to Figure 2d The following fields are described in detail in accordance with relevant standards or protocols and are not described in detail here: legacy short training field (L-STF), legacy long training field (L-LTF), legacy signaling (L-SIG) field, repeated L-SIG (RL-SIG) field, high efficiency signaling field A (HE-SIG), high efficiency short training field (HE-LTF), universal signaling (U-SIG) field, extremely high throughput short training field (EHT-STF), extremely high throughput signaling (EHT-SIG) field, or packet extension (PE). The description of the sensing PPDU here also applies to the ranging PPDU.

[0118] Figure 2a to Figure 2d The sensing PPDU (or ranging PPDU) shown is only an example. As the standard progresses, other formats of sensing PPDU (or ranging PPDU) will appear in the future, and this embodiment of the present application does not limit this. The sensing PPDU (or ranging PPDU) transmitted on the high frequency may have the same format as the sensing PPDU (or ranging PPDU) transmitted on the low frequency, or it may be different, and this application does not limit this. Figure 2a to Figure 2dThe lengths of the various fields in the NDP shown are only examples and should not be understood as limitations on the embodiments of the present application.

[0119] The following describes in detail the perception communication method and device shown in this application.

[0120] Sensing initiator: A device that initiates a sensing action; or a device that initiates a sensing measurement session; or a device that sends a sensing measurement request frame. For example, the sensing initiator can send sensing measurement request frames at a low frequency or at a high frequency. A sensing initiator can be a sensing transmitter or a sensing receiver.

[0121] Sensing responder: A device that responds to the sensing behavior initiated by the sensing initiator and participates in the sensing. For example, the sensing responder can receive a sensing measurement request frame and reply with a sensing measurement response frame. For example, the sensing responder can reply with a sensing measurement response frame at a low frequency, or reply with a sensing measurement response frame at a high frequency. As an example, for a trigger-based (TB) sensing measurement interaction, the sensing initiator can be an AP and the sensing responder can be an STA. As another example, for a non-trigger-based (non-TB) sensing measurement interaction, the sensing initiator can be an STA and the sensing responder can be an AP. The sensing responder can be a sensing transmitter or a sensing receiver.

[0122] Sensing transmitter: A device that sends sensing PPDUs. For example, a sensing transmitter can send sensing PPDUs at a low frequency or at a high frequency.

[0123] Sensing receiver: A device that receives a sensing PPDU. For example, a sensing receiver can receive a sensing PPDU at a low frequency or at a high frequency.

[0124] Figure 3 This is a schematic diagram of the stages of the perception process provided by the embodiment of this application. Figure 3As shown, the stages of the sensing process may include: a sensing capabilities exchange stage, a sensing measurement session establishment stage, a sensing measurement exchange stage, and a sensing measurement session termination stage.

[0125] Different devices can exchange capabilities between devices, such as Figure 3 The perception capability interaction phase shown. Through the interaction of basic capabilities, devices can understand each other's perception capabilities. Exemplarily, the perception initiator can send a perception capability element to the perception responder, and the perception capability element can carry the perception capability of the perception initiator. The perception responder can send a perception capability element to the perception initiator, and the perception capability element can carry the perception capability of the perception responder. Generally speaking, in the perception capability interaction phase, the perception initiator or the perception responder is not distinguished between the devices that interact with the capabilities. For example, the perception initiator or the perception responder can be distinguished after the capability interaction is completed, that is, the device that sends the perception measurement request frame can be the perception initiator.

[0126] After the sensing device completes the capability interaction, when it needs to initiate a sensing measurement session, the sensing initiator can initiate the establishment of the sensing measurement session by sending a sensing measurement request frame. The sensing responder receives the sensing measurement request and replies with a sensing measurement response frame. During the sensing measurement session establishment phase, the sensing initiator assigns different roles and parameters to different sensing responders for different sensing tasks to complete the establishment of the sensing measurement session. During the sensing measurement session establishment phase, the relevant parameters in the sensing are negotiated, such as the receiving / transmitting role of the device, the sensing bandwidth, whether channel state information (CSI) feedback is required, and whether sensing measurement report frame feedback is required.

[0127] After completing the establishment of the sensing measurement session, the sensing initiator can initiate one or more sensing measurement interactions. That is, the sensing measurement session may include one or more sensing measurement interactions. Sensing measurement interactions can be divided into trigger-based (TB) sensing measurement interactions (TB sensing measurement instance) and non-trigger-based (non-TB) sensing measurement interactions (non-TB sensing measurement instance). TB sensing measurement interactions are generally initiated by the AP (such as the AP acting as the sensing initiator), and non-TB sensing measurement interactions are generally initiated by the STA (such as the STA acting as the sensing initiator).

[0128] After a period of time, if the perception initiator or the perception responder no longer needs the perception measurement session, the perception initiator or the perception responder can close (or terminate) the perception measurement session by sending a perception measurement session termination frame, such as Figure 3 The perception measurement session termination phase is shown.

[0129] Figure 3 The perception process shown can correspond to different perception tasks. For example, the perception initiator can initiate a perception process for a fall detection task. During the perception measurement interaction phase, the perception initiator (or perception responder) can detect the target information by sending several perception PPDUs. For another example, the perception initiator can initiate a perception process for a breathing detection task. During the perception measurement interaction phase, the perception initiator (or perception responder) can also detect the target information by sending several perception PPDUs. The target information listed here may include the target's motion information, etc. For example, the target detected by the perception process can be in motion or in a stationary state, which is not limited in the embodiments of the present application.

[0130] Figure 3 The perception process shown can also be applied to the ranging process. For example, the ranging initiator and the ranging responder can exchange their respective capabilities in the ranging capability interaction phase, and then assign roles and parameters to different perception responders in the ranging measurement session phase to complete the establishment of the ranging measurement session. After the ranging measurement session is completed, the ranging initiator can initiate one or more ranging measurement interactions. For the description of the ranging process, please refer to the perception process, and this application will not elaborate on it.

[0131] The following details the perception measurement interaction process in the perception measurement session.

[0132] Figure 4 This is a flow chart of the TB perception measurement interaction provided by the embodiment of the present application. Figure 4As shown, a TB perception measurement interaction may include at least one of the following four phases: a polling phase, an NDPA sounding phase, a trigger frame (TF) sounding phase, or a reporting phase. For example, when a TB perception measurement interaction includes one phase, the phase may be a TF sounding phase. For another example, a TB perception measurement interaction may include an NDPA sounding phase and a TF sounding phase. For another example, a TB perception measurement interaction may include a polling phase and a TF sounding phase. For another example, a TB perception measurement interaction may include a polling phase, an NDPA sounding phase, and a reporting phase. For another example, a TB perception measurement interaction may include a TF sounding phase and a reporting phase. For another example, a TB perception measurement interaction may include an NDPA sounding phase and a reporting phase. For another example, a TB measurement phase may include a polling phase, an NDPA sounding phase, a TF sounding phase, and a reporting phase (e.g. Figure 4 The description of the stages herein is applicable to all methods provided below, and will not be repeated here. Although the polling stage, NDPA detection stage, TF detection stage, and reporting stage are shown below, they should not be understood as limitations of this application. The following describes each stage in detail:

[0133] (1) Polling phase

[0134] In the TB perception measurement interaction, the AP acts as the perception initiator and can send a perception polling trigger frame to the STAs that it wants to invite to participate in this perception measurement interaction during the polling phase, inviting each STA to participate in this perception measurement interaction. The STAs participating in this perception measurement interaction can reply to the CTS-to-self frame on the resources allocated by the AP to confirm their participation in this perception measurement interaction. That is, the perception polling trigger frame can be used by the perception initiator to ask one or more perception responders whether the one or more perception responders will participate in this perception measurement interaction. The CTS-to-self frame can be used to confirm participation in this perception measurement interaction. Figure 4 As shown in FIG, the AP can invite STA1 to STA6 to participate in this sensing measurement interaction process. STA1, STA2, STA4, and STA5 confirm their participation in this sensing measurement interaction.

[0135] When there are a large number of sensing responders and the sensing initiator cannot poll all of them at once, the sensing initiator can initiate multiple pollings. For example, when the number of sensing responders is greater than the number of resource units (RUs) that the sensing initiator can allocate (for example only), the sensing initiator can initiate multiple pollings.

[0136] In the embodiment of the present application, the name of the perception polling trigger frame is only an example. For example, the perception polling trigger frame can also be called a perception polling frame, a polling trigger frame, or a polling frame (or simply a polling frame), etc., and this application does not limit it. For the sake of simplicity, the following description takes the polling frame as an example.

[0137] (2) NDPA detection phase

[0138] During the NDPA detection phase, the perception initiator sends a perception NDPA frame to one or more perception responders that confirm participation in the NDPA detection, and sends the SI2SR NDP after a predetermined interval (for example, short inter frame space (SIFS)). The perception responder receives the SI2SR NDP based on the information in the perception NDPA frame to implement perception measurement. That is, the perception NDPA frame can be used to schedule one or more perception responders participating in the NDPA detection phase. SI2SRNDP is a type of perception PPDU, and the SI2SR NDP can be used for perception to implement perception measurement from the perception initiator to the perception responder. The SI2SR NDP can be any of the following types: perception NDP, ranging NDP, IMMW perception NDP, IMMW ranging NDP or data PPDU. This application does not limit the specific format of SI2SR NDP.

[0139] The specific duration of the predetermined interval is not limited in this embodiment of the present application, and SIFS is only an example. In this embodiment of the present application, the name of the perceived NDAP frame is only an example. For example, the perceived NDPA frame can also be called an NDPA frame (or simply NDPA), etc., which is not limited in this application. For the sake of simplicity, the following description uses the NDPA frame as an example.

[0140] (3) TF detection stage

[0141] During the TF detection phase, the sensing initiator sends a sensing SR2SI detection trigger frame to one or more sensing responders that confirm participation in TF detection. The sensing responders send SR2SI NDPs based on the information allocated by the SR2SI detection trigger frame to implement sensing measurements. In other words, the sensing SR2SI detection trigger frame can be used to allocate measurement resources to the sensing responders. After receiving the sensing SR2SI detection trigger frame, the sensing responders can send SR2SI NDPs according to the allocated measurement resources. The measurement resources may include, but are not limited to, spatial streams or space-time streams.

[0142] If the number of sensing responders is large, for example, if the number of sensing responders is greater than a threshold, the sensing initiator may initiate multiple TF detection phases. For example, the threshold may be determined by the maximum number of spatial streams that the sensing initiator can schedule. In other words, if the number of sensing responders is greater than the threshold, the sensing initiator may not be able to complete the sensing measurement in one TF detection phase. Therefore, the sensing initiator may initiate multiple TF detection phases.

[0143] In the embodiment of the present application, the name of the perception SR2SI detection trigger frame is only an example. For example, the perception SR2SI detection trigger frame can also be called a detection trigger frame (or simply a detection trigger) or a perception detection trigger frame, etc., which is not limited in the embodiment of the present application. For the sake of simplicity, the following description uses the detection trigger frame as an example.

[0144] (4) Reporting stage

[0145] During the reporting phase, the sensing initiator sends a sensing report trigger frame to one or more sensing responders that have confirmed their participation in the reporting phase. The sensing responders then send sensing measurement report frames based on the sensing report trigger frame. In other words, the sensing report trigger frame can be used to allocate resources to the sensing responders, which can then use the allocated resources to send sensing measurement report frames. These sensing measurement report frames can be used to report sensing measurement results.

[0146] In the embodiments of the present application, the name of the perception report trigger frame is only an example. For example, the perception report trigger frame may also be referred to as a report trigger frame (or simply a report trigger), etc., which is not limited in this application. The perception measurement report frame may also be referred to as a report frame (or simply a report), etc., which is not limited in this application. For the sake of simplicity, the following description uses the report trigger frame and the report frame as examples.

[0147] In embodiments of the present application, the different phases of a TB measurement interaction may occur within a sensing availability window. For example, when a TB measurement interaction includes the aforementioned four phases, the polling phase, NDPA detection phase, TF detection phase, and reporting phase may occur within a sensing availability window. For example, a sensing availability window may include multiple transmission opportunities (TXOPs), and a TXOP may include one or more sensing measurement interactions.

[0148] Figure 4STA1 to STA2 can play the role of the sensing transmitter, and STA4 to STA6 can play the role of the sensing receiver. When the AP sends the sensing polling trigger frame to STA1 to STA5, STA3 does not reply with a CTS-to-self frame, so STA3 does not participate in the sensing process. The sensing polling trigger frame is optional, and STA6 can skip the polling phase. The AP and STA4 negotiate not to feedback the sensing measurement results, so Figure 4 Although STA4 completes the perception measurement based on the received SI2SR NDP, during the reporting phase, STA4 may not report the perception measurement results through the perception measurement report frame, but may report the perception measurement results through the upper layer. For example, the perception measurement results may include CSI or channel impulse response (CIR).

[0149] As the standard progresses, the specific process of TB perception measurement interaction may change, so Figure 4 The process of TB perception measurement interaction shown is only an example and should not be understood as limiting the embodiments of the present application. When the process of TB perception measurement interaction changes, the various examples shown below may also change accordingly.

[0150] The embodiments of the present application do not limit whether the frames involved in the above-mentioned stages are transmitted at a low frequency or a high frequency. For example, reference may be made to the above description of the control frame and the perception PPDU.

[0151] Figure 5 FIG. 1 is a flow chart of the non-TB sensing measurement interaction provided in the embodiment of the present application. Figure 5 As shown, the process of non-TB sensing measurement interaction can be as follows:

[0152] In non-TB sensing measurement interaction, the STA, as the sensing initiator, can send a sensing NDPA frame and send an SI2SR NDP after a predetermined interval (such as SIFS). The AP, as the sensing responder, sends an SR2SI NDP after SIFS and enters the reporting phase after SIFS. The AP includes the measured sensing measurement results in the sensing measurement report frame and reports them to the sensing initiator.

[0153] For example, the perception measurement result reported by the AP may be a perception measurement result obtained based on the SI2SR NDP, such as including the CSI from the STA to the AP. The AP sends the SR2SI NDP, and after the STA receives the SR2SI NDP, it may obtain the perception measurement result based on the SR2SINDP, such as including the CSI from the AP to the STA.

[0154] In non-TB perception measurement interaction, STA can flexibly indicate perception measurement information from STA to AP or from AP to STA through the perception NDPA frame.

[0155] When STA-to-AP perception measurement is not performed, the SI2SR NDP can be a predetermined NDP, and the AP may not send a perception measurement report frame. When AP-to-STA perception measurement is not performed, the SR2SI NDP can be a predetermined NDP. The predetermined NDP can be considered to have an air interface time less than or equal to a certain threshold. The specific value of the threshold is not limited in the embodiments of the present application. The predetermined NDP can be transmitted in a unidirectional direction. For example, the AP or STA may not perform multi-directional scanning, but instead send the NDP in one direction. Alternatively, the predetermined NDP may satisfy at least one of the following: the SR2SI space-time stream number (NSTS) (or the SR2SI spatial stream number (NSS) field) in the NDP may be set to 0, and the SR2SI repetition (SR2SI rep) field in the NDP may be set to 0. Alternatively, the predetermined NDP may satisfy at least one of the following: the SI2SR NSTS (or SI2SR NSS) field in the NDP may be set to 0, and the SI2SR repetition (SI2SR rep) field in the NDP may be set to 0.

[0156] In the embodiment of the present application, different stages of a non-TB sensing measurement interaction may occur within a sensing available window. For an explanation of the sensing available window, please refer to Figure 4 , which will not be described in detail here.

[0157] Whether the frames involved in the above non-TB sensing measurement interaction are transmitted at a low frequency or a high frequency is not limited in this embodiment of the application. For example, reference may be made to the above description of the control frame and the sensing PPDU.

[0158] The following introduces other devices in the perception communication method involved in the embodiments of the present application.

[0159] Sensing by proxy (SBP) initiator: The device that initiates the SBP process or the SBP request frame. Typically, the SBP initiator can be a STA. For example, the SBP initiator can send SBP request frames at a low frequency or at a high frequency.

[0160] SBP responder: A device that responds to the SBP process, or responds to an SBP request frame with an SBP response frame. Typically, an SBP responder is an AP. An SBP responder can send SBP response frames at a low frequency or a high frequency. An SBP responder can also act as a sensing initiator and initiate sensing measurement request frames.

[0161] Figure 6a Schematic diagram of the SBP process provided in the embodiment of the present application. Figure 6a As shown in the figure, STA1 as the SBP initiator sends an SBP request frame to the AP. AP as the SBP responder, after receiving the SBP request frame (as shown in the figure), Figure 6a After receiving the SBP request frame, the AP will establish a sense with the corresponding sense response end according to the parameters carried in the SBP request frame, complete the measurement and provide feedback. Figure 6a The AP can initiate a perception measurement session as a perception initiator, such as sending a perception measurement request frame to STA1 and STA2 respectively. The perception measurement interaction initiated by the above-mentioned AP as a perception initiator is generally a TB perception measurement interaction. For the description of TB perception measurement interaction, please refer to the above Figure 4 , which will not be described in detail here.

[0162] Figure 6a In the example, STA1 can both initiate SBP requests as the SBP initiator and participate in the perception measurement session as the perception responder. However, in a specific implementation, STA1 can initiate SBP requests as the SBP initiator but does not participate in the perception measurement session initiated by the SBP responder (i.e., STA1 may not be the perception responder).

[0163] Exemplarily, the SBP process may further include a feedback phase ( Figure 6a not shown) and the closing phase ( Figure 6a For example, in the feedback phase of SBP ( Figure 6a As the SBP responder, the AP can collect the SBP perception measurement results and then report the SBP perception measurement report to the SBP initiator (such as STA1) through the SBP report frame. Alternatively, the SBP responder may not send the SBP report frame but report the SBP perception measurement report through the upper layer. In the SBP closing phase ( Figure 6a (not shown), the SBP initiator can close the established SBP process. The closing phase shown in the embodiment of the present application can also be called the termination phase, etc. The specific names of the various phases are not limited in this application.

[0164] Figure 6aThe perception measurement request sent by the AP to STA1 or STA2 is only an example and should not be understood as a limitation to the embodiments of the present application. Figure 6a The order between the SBP response and the perception measurement request is not limited in this embodiment of the application. Figure 6a The description of the perception measurement request and perception measurement response in the above text can be found above and will not be described in detail here.

[0165] The embodiment of the present application does not limit whether the frames involved in the above SBP process are transmitted at a low frequency or a high frequency. For example, reference may be made to the above description of the control frame and the perception PPDU.

[0166] The following describes in detail the ranging communication method and device shown in this application.

[0167] Ranging initiator: A device that initiates ranging behavior; or, a device that initiates a fine timing measurement session (FTM session); or, a device that sends an initial fine timing measurement request (IFTMR) frame. For example, the ranging initiator can send IFTMR frames at a low frequency or at a high frequency. The above-mentioned fine timing measurement session can also be called a ranging measurement session, and the IFTMR frame can also be called a ranging measurement request frame. The ranging initiator can be a ranging transmitter or a ranging receiver.

[0168] Ranging responder: A device that responds to the ranging behavior initiated by the ranging initiator and participates in the ranging. For example, the ranging responder can receive IFTMR frames and reply with initial fine timing measurement (IFTM) frames. For example, the ranging responder can reply with IFTM frames at a low frequency or at a high frequency. For example, for a triggered FTM (TB FTM) interaction (or TB ranging measurement interaction), the ranging initiator can be an STA and the ranging responder can be an AP. For example, for a non-triggered FTM (non-TB FTM) interaction (or non-TB ranging measurement interaction), the ranging initiator can be an STA and the ranging responder can be an AP. The embodiments of the present application do not limit the specific product form of the initiator or responder of a TB FTM session or a non-TB FTM session. The ranging responder can be a ranging transmitter or a ranging receiver.

[0169] Ranging transmitter: A device that sends a ranging PPDU. For example, a ranging transmitter can send a ranging PPDU at a low frequency or at a high frequency.

[0170] Ranging receiver: A device that receives ranging PPDUs. For example, a ranging receiver can receive ranging PPDUs at a low frequency or a high frequency.

[0171] The ranging PPDU shown in the embodiment of the present application is a PPDU used for ranging. For the format of the PPDU, please refer to the above Figure 2a to Figure 2d The embodiment of the present application does not limit the specific format of the ranging PPDU. The format of the ranging PPDU can be the same as the format of the sensing PPDU, or there may be some fields with different contents, etc., which is not limited in the embodiment of the present application.

[0172] Exemplarily, a ranging measurement interaction may include at least one of the following four phases: a polling phase, a TF detection phase, an NDPA detection phase, or a reporting phase. The type of the control frame in each phase of the ranging measurement interaction may be ranging, and the type of the control frame in each phase of the perception measurement interaction may be perception. Whether other information other than the type is the same is not limited in this embodiment of the application. For the description of the ranging measurement interaction, please refer to the description of the perception measurement interaction, which will not be listed here one by one.

[0173] For the description of TB ranging measurement interaction, please refer to the above TB perception measurement interaction. For the process of non-TB ranging measurement interaction, please refer to the above non-TB ranging measurement interaction or Figure 6b etc., which will not be described in detail here.

[0174] The following describes in detail the frame format or element format involved in the embodiments of the present application.

[0175] The names, lengths, or positions of the frames, elements, or fields shown below are not limited in the present application. The following examples are exemplified by elements or fields, without specifically distinguishing between fields, subfields, elements, or subelements, and should not be construed as limiting the present application. The frame formats or element formats shown in the following stages may be separate embodiments, or the frame formats or element formats shown in different stages may be combined with each other.

[0176] Regarding the capability interaction stage:

[0177] For the perception communication method, the capability element may include capability indication information, which may be used to indicate whether the transmitter of the capability element supports: at least one of high-frequency perception capability or high- and low-frequency mixed perception capability. For example, the high-frequency perception capability may indicate the capability of having IMMW perception. For example, the perception initiator and the perception responder both transmit control frames and perception PPDUs at high frequencies, that is, the perception initiator and the perception responder both support high-frequency perception capability. High- and low-frequency mixed perception capability may indicate the capability of having high-frequency and low-frequency collaboration. For example, for IMMW, the capability indication information may be used to indicate whether the transmitter of the capability element supports the capability of IMMW perception, or the capability indication information may be used to indicate whether the transmitter of the capability element supports sub-7GHz and IMMW mixed perception, etc. The specific description of the capability indication information will not be listed here one by one.

[0178] For ranging communication methods, the capability element may include capability indication information, which may be used to indicate whether the transmitter of the capability element supports at least one of high-frequency ranging capability or high- and low-frequency hybrid ranging capability. For an explanation of the capability indication information or capability elements in ranging communication methods, refer to the description of perception communication methods and are not further described here.

[0179] The following description of the capability elements in the sensing communication method is taken as an example. The following description of the capability elements in the sensing communication method is also applicable to the ranging communication method. The capability elements in the ranging communication method will not be described in detail below.

[0180] Exemplarily, capability elements can be carried in the following frames: beacon, probe request, probe response, association request, association response, reassociation request, and reassociation response. That is, during the capability interaction phase, devices can interact with each other to perceive capabilities through the above frames. Of course, the above frames are merely examples and should not be construed as limiting the embodiments of the present application.

[0181] The above-mentioned capability element may be an extended capability element (extended capabilities element) or a perception capability element (or ranging capability element), etc., which is not limited in the embodiment of the present application.

[0182] The following example illustrates capability indication information.

[0183] As an example, the capability indication information may be carried in B106 in the capability element.

[0184] As another example, the capability indication information may be carried in B107 in the capability element.

[0185] As yet another example, the capability indication information may include B106 and B107.

[0186] The above B106 and B107 are only examples. The capability indication information can be located in reserved bits in any possible frame (such as existing frames in the current protocol or frames that will appear in the future), or in bits that are not effectively utilized. Tables 1 and 2 exemplarily illustrate capability indication information. The descriptions of the values ​​and meanings of the various fields shown below are only examples, and the embodiments of the present application are not limited thereto.

[0187] Tables 1 and 2 illustrate the example where the capability indication information is located at B106 or B107. In specific implementations, the location of the capability indication information may vary for different devices. The AP shown in Table 1 is connected to an AP with IMMW awareness capabilities. This means that the AP and the AP with IMMW awareness capabilities are co-located devices.

[0188] Table 1

[0189]

[0190] Table 2

[0191]

[0192] B106 or B107 shown in Table 1 or Table 2 is only an example, and the embodiment of the present application does not limit the field name or field order carried by the capability indication information.

[0193] Exemplarily, the capability element may include capability indication information or capability information. The description of the capability indication information may refer to the above description, and the capability information may be used to indicate the capabilities supported by the device. For the description of the capability information, reference may also be made to the IMMW perception capability element shown below. That is, the IMMW perception capability element may carry the capabilities supported by the device. That is, the specific capabilities corresponding to the above capability indication information may include one or more capabilities shown in the IMMW perception capability element.

[0194] The following description uses the sensing communication method as an example. When the capability elements mentioned above are applicable to the ranging communication method, the names or functions of the relevant fields may vary accordingly. The capability elements involved in the ranging communication method will not be described in detail below.

[0195] The present application embodiment also designs an IMMW perception capability element, which can be used to carry the IMMW perception capability of a device. For example, the IMMW perception capability element can carry the capabilities of the device sending the IMMW perception capability element. The device sending the IMMW perception capability element shown here can also be referred to as this device.

[0196] For example, the structure of the IMMW perception capability element is as follows: Figure 7 The IMMW perception capability element may occupy one or at least two bytes.

[0197] Figure 7 This is a schematic diagram of the format of the IMMW perception capability element provided in the embodiment of this application. Figure 7 As shown, the IMMW sensing capability element may include at least one of the following: an element ID, a length, an element ID extension, or an IMMW sensing capability.

[0198] The element ID field and the element ID extension field may be used to identify the IMMW-awareness capability element. The length field may be used to indicate the length of the IMMW-awareness capability element.

[0199] The IMMW perception capability field can be used to carry at least one of the following information: information related to spatial streams (SS), information related to space-time streams (STS), information related to long training fields (LTF), or other related information. The embodiment of the present application does not limit the number of bytes occupied by the IMMW perception capability field. When the sum of the number of bits occupied by each field shown below is not an integer number of bytes, the IMMW perception capability field may include reserved bits.

[0200] Exemplarily, SS-related information may include at least one of the following: maximum transmit SS = 320 MHz (max TXSS = 320 MHz), maximum transmit SS = 640 MHz (max TX SS = 640 MHz), maximum receive SS = 320 MHz (max RXSS = 320 MHz), or maximum receive SS = 640 MHz (max RX SS = 640 MHz). STS-related information may include at least one of the following: maximum transmit space-time stream = 320 MHz (max TX STS = 320 MHz), maximum transmit STS = 640 MHz (maxTX STS = 640 MHz), maximum receive STS = 320 MHz (max RX STS = 320 MHz), or maximum receive STS = 640 MHz (max RX STS = 640 MHz). The 320 MHz and 640 MHz shown here are only examples. As the standard progresses, larger bandwidths may be supported in the future, which is not limited here.

[0201] Exemplarily, the LTF-related information may include at least one of the following: maximum transmit integrated millimeter wave-long training field repetition (maxTX IMMW-LTF repetition), maximum receive integrated millimeter wave-long training field repetition (max RXIMMW-LTF repetition), maximum transmit integrated millimeter wave-long training field total number (max TX IMMW-LTF total) or maximum receive integrated millimeter wave-long training field total number (max RX IMMW-LTF total).

[0202] Exemplarily, other relevant information may include at least one of the following: responder needed, bandwidth (BW), device class (or device category), full bandwidth uplink multiple-in multiple-out (full BW ULMIMO), maximum supported sessions, minimum measurement interval, poll required, Ng, maximum RX antennas, maximum number of receive chains, IMMW coordinated monostatic, IMMW bistatic, IMMW coordinated bistatic, IMMW multistatic, IMMW SBP, polarization sensing support (or IMMW polarization sensing support), maximum number of TX directions, maximum number of RX directions, maximum number of transmit beams. TXbeams) or the maximum number of receive beams (maximum number ofRXbeams).

[0203] For example, the contents indicated by the above fields may be as follows:

[0204] Required Response End field: This field indicates whether the response end needs to be detected. If this field is 1, it indicates that the response end needs to be detected. If this field is 0, it indicates that the response end does not need to be detected.

[0205] BW field: can be used to indicate bandwidth, such as the bandwidth of the perceived PPDU.

[0206] Maximum TX STS=320 MHz field: can be used to indicate the maximum number of transmitted space-time streams when the bandwidth is 320 MHz.

[0207] Maximum TX STS=640 MHz field: can be used to indicate the maximum number of transmitted space-time streams when the bandwidth is 640 MHz.

[0208] Maximum RX STS=320 MHz field: can be used to indicate the maximum number of received space-time streams when the bandwidth is 320 MHz.

[0209] Maximum RX STS=640 MHz field: can be used to indicate the maximum number of received space-time streams when the bandwidth is 640 MHz.

[0210] Maximum TX SS=320 MHz field: can be used to indicate the maximum number of transmit spatial streams when the bandwidth is 320 MHz.

[0211] Maximum TX SS=640 MHz field: can be used to indicate the maximum number of transmit spatial streams when the bandwidth is 640 MHz.

[0212] The Maximum RX SS=320 MHz field may be used to indicate the maximum number of receive spatial streams when the bandwidth is 320 MHz.

[0213] The Maximum RX SS=640 MHz field may be used to indicate the maximum number of receive spatial streams when the bandwidth is 640 MHz.

[0214] Maximum TX IMMW-LTF repetition field: can be used to indicate the maximum number of transmission repetitions of IMMW-LTF.

[0215] Maximum RX IMMW-LTF repetition field: can be used to indicate the maximum number of reception repetitions of IMMW-LTF.

[0216] Maximum TX IMMW-LTF Total field: can be used to indicate the maximum total number of IMMW-LTFs sent (taking IMMW-LTF repetitions and stream numbers into account).

[0217] Maximum RX IMMW-LTF Total field: can be used to indicate the maximum total number of received IMMW-LTFs (taking repetitions and streams into account).

[0218] Device Type Field: can be used to indicate the type of this device.

[0219] Full Bandwidth UL-MIMO field: can be used to indicate whether the device supports full bandwidth UL-MIMO.

[0220] Maximum supported sessions field: can be used to indicate the maximum number of sessions supported by this device.

[0221] Minimum measurement interval field: can be used to indicate the minimum measurement interval.

[0222] Polling Required field: can be used to indicate whether the device needs to be polled.

[0223] Ng: subcarrier grouping setting. The Ng field can also be called I Ng field, etc., which can indicate the subcarrier aggregation (or subcarrier smoothing) method.

[0224] Maximum Receive Antennas field: can be used to indicate the maximum number of receive antennas.

[0225] Maximum receiving links field: can be used to indicate the maximum number of receiving links.

[0226] IMMW collaborative self-transmission and self-reception field: can be used to indicate whether this device supports the perception of IMMW collaborative self-transmission and self-reception.

[0227] IMMW transmit / receive split field: can be used to indicate whether the device supports IMMW transmit / receive split perception.

[0228] IMMW collaborative transceiver split field: can be used to indicate whether this device supports collaborative transceiver split perception.

[0229] IMMW multi-station awareness field: can be used to indicate whether this device supports multi-station awareness.

[0230] IMMW proxy awareness field: can be used to indicate whether the device supports IMMW SBP awareness.

[0231] Polarization awareness support field: can be used to indicate whether the device supports polarization awareness.

[0232] Maximum number of transmission directions (or beams) field: can be used to indicate the maximum number of supported transmission directions (or beams).

[0233] Maximum number of receiving directions (or beams): This field can be used to indicate the maximum number of receiving directions (or beams) supported. The meaning of each of the above fields can also refer to the description of existing standards, and is not limited in the present embodiment.

[0234] For the establishment phase of a perception measurement session or a ranging measurement session:

[0235] The measurement request frame may include at least one of the following fields: hybrid sounding mode, link ID, channel ID, frequency ID (or band ID), transmit beam list (TX beam list), receive beam list (RX beam list), time information, or period information. The measurement request frame shown here may be a sensing measurement request frame or a ranging measurement request frame.

[0236] The above-mentioned fields can be carried in an element in the measurement request frame. Alternatively, part of the above-mentioned fields is carried in an element in the measurement request frame (such as element #1), and the other part is carried in another element in the measurement request frame (such as element #2), etc., which are not listed here one by one. The embodiment of the present application does not limit whether the above-mentioned fields are carried in the same element in the measurement request frame. The embodiment of the present application also does not limit the element name carried by the above-mentioned fields. The above-mentioned fields can exist in the form of fields in the measurement request frame, or can also exist in the form of elements, or can also exist in the form of subfields or subelements, etc., without limitation. The following introduces the above-mentioned fields respectively:

[0237] (1) Hybrid Detection Mode Field

[0238] The Hybrid Probing Mode field is used to indicate the measurement mode of a measurement session. That is, the Hybrid Probing Mode field can be used to indicate the measurement mode of this measurement session. The measurement session can be a sensing measurement session initiated by a sensing measurement request frame, or a ranging measurement session initiated by a ranging measurement request frame.

[0239] In other words, the mixed detection mode field can be used to indicate a mixed measurement mode. The mix shown here can be a mix of high frequency and low frequency, or a mix of sub-7GHz and millimeter wave, etc. For example, the measurement mode can indicate whether the frames involved in the measurement session are transmitted at high frequency or at low frequency. In other words, the measurement mode can indicate which frames in the measurement session are transmitted at high frequency and which frames are transmitted at low frequency. The measurement mode shown in the embodiment of the present application can also be called a transmission mode, etc. The specific name of the measurement mode is not limited in the embodiment of the present application.

[0240] As a possible implementation, the measurement request frame may not include the mixed detection mode field. For example, the process of TB measurement interaction may be defined by the protocol, such as the default setting: the detection PPDU (such as the SI2SR NDP and SR2SI NDP shown above) in the TB detection measurement interaction is transmitted on a high frequency, and all frames other than the detection PPDU in the TB detection measurement interaction are transmitted on a low frequency; or, the SI2SR NDP, detection trigger frame, and SR2SI NDP in the TB detection measurement interaction are all transmitted on a high frequency, and all other frames are transmitted on a low frequency; or, the detection NDPA frame, SI2SRNDP, detection trigger frame, and SR2SI NDP in the TB detection measurement interaction are all transmitted on a high frequency, and all other frames are transmitted on a low frequency; or, the detection NDPA frame, SI2SR NDP, detection trigger frame, SR2SI NDP, report trigger frame, and report frame in the TB detection measurement interaction are all transmitted on a high frequency, and the polling frame and CTS-to-self frame are all transmitted on a low frequency. For example, the process of non-TB measurement interaction can also be defined by the protocol. The specific measurement modes are not listed here one by one.

[0241] As another possible implementation, the measurement request frame may indicate the measurement mode by whether it includes the hybrid detection mode field. For example, for a perception measurement session, when the perception measurement request frame does not include the hybrid detection mode field, the process of TB perception measurement interaction in the perception measurement session may be as described above. Figure 4 As shown, the process of non-TB perception measurement interaction in the perception measurement session can be as described above. Figure 5 As shown. For example, when the perception measurement request frame includes the hybrid detection mode field, the TB perception measurement interaction process in the perception measurement session can be: the perception PPDU is transmitted on a high frequency, and all frames other than the perception PPDU are transmitted on a low frequency, etc., which are not listed here one by one. The description of the perception measurement session here also applies to the ranging measurement session, and the specific description of the ranging measurement session is not repeated here.

[0242] As another possible implementation, the measurement request frame includes a hybrid probing mode field. Different values ​​of the hybrid probing mode field may indicate different measurement modes for the measurement session. In other words, the value of the hybrid probing mode field corresponds to the measurement mode. The description herein of the perception measurement session also applies to the ranging measurement session, and the specific description of the ranging measurement session is not further detailed here.

[0243] The following example illustrates the relationship between the value of the Hybrid Probe Mode field and the measurement mode. The following uses a sensing measurement session as an example. The following description of the sensing measurement session also applies to the ranging measurement session. The ranging measurement session will not be described in detail below.

[0244] As an example 1, when the value of the Hybrid Probing Mode field is the first value, the first value may indicate that the PPDUs (or signals, or frames, or OFDM symbols, etc., such as polling frames and CTS-to-self frames) in the polling phase of the perception measurement session are transmitted on the first frequency band, the NDPA frames in the NDPA probing phase of the perception measurement session are transmitted on the first frequency band, and the PPDUs (such as report trigger frames and report frames) in the reporting phase of the perception measurement session are transmitted on the first frequency band. Alternatively, the first value may indicate that the perception PPDUs (such as the first PPDU) in the NDPA probing phase of the perception measurement session are transmitted on the second frequency band, and the PPDUs (such as the probing trigger frame and the second PPDU) in the TF probing phase are transmitted on the second frequency band. Alternatively, the measurement mode indicated by the first value may be: each PPDU in the polling phase is transmitted on a low frequency, each PPDU in the reporting phase is transmitted on a low frequency, and the NDPA frames in the NDPA probing phase are transmitted on a low frequency; and the perception PPDUs in the NDPA probing phase are transmitted on a high frequency, and each PPDU in the TF probing phase is transmitted on a high frequency. The description of the PPDU in each stage in this example is also applicable to the following and will not be described in detail below.

[0245] As another example 2, when the value of the Hybrid Probing Mode field is the second value, the second value may indicate that the PPDUs in the polling phase of the perception measurement session are transmitted on the first frequency band, and the NDPA frames in the NDPA probing phase of the perception measurement session are transmitted on the first frequency band. Alternatively, the first value may indicate that the perception PPDUs in the NDPA probing phase of the perception measurement session are transmitted on the second frequency band, the PPDUs in the TF probing phase of the perception measurement session are transmitted on the second frequency band, and the PPDUs in the reporting phase of the perception measurement session are transmitted on the second frequency band. Alternatively, the measurement mode indicated by the second value may be: each PPDU in the polling phase is transmitted on a low frequency, and the NDPA frames in the NDPA probing phase are transmitted on a low frequency; and the perception PPDUs in the NDPA probing phase are transmitted on a high frequency, the PPDUs in the TF probing phase are transmitted on a high frequency, and the PPDUs in the reporting phase are transmitted on a high frequency.

[0246] As another example 3, when the value of the Hybrid Probing Mode field is a third value, the third value may indicate that the PPDUs in the polling phase of the awareness measurement session are transmitted on the first frequency band. Alternatively, the third value may indicate that the PPDUs in phases other than the polling phase of the awareness measurement session are transmitted on the second frequency band. Alternatively, the measurement mode indicated by the third value may be: each PPDU in the polling phase is transmitted on a low frequency, each PPDU in the NDPA probing phase is transmitted on a high frequency, each PPDU in the TF probing phase is transmitted on a high frequency, and each PPDU in the reporting phase is transmitted on a high frequency.

[0247] As yet another example 4, when the value of the hybrid probing mode field is the fourth value, the fourth value may indicate that all PPDUs in each phase of the perception measurement session are transmitted on the second frequency band (or in other words, are transmitted on the high frequency).

[0248] As another example 5, when the value of the Hybrid Probing Mode field is the fifth value, the fifth value may indicate that the sensing PPDU (e.g., the first PPDU and the second PPDU) in the sensing measurement session is transmitted on the second frequency band. For example, the fifth value indicates that the sensing PPDU in the NDPA probing phase of the sensing measurement session and the sensing PPDU in the TF probing phase of the sensing measurement session are transmitted on the second frequency band.

[0249] The above examples 1 to 5 can be independent embodiments respectively, or can be combined with each other into one embodiment. For example, the above examples 1 and 2 can be combined into one embodiment, and in this case, there are two measurement modes indicated by the mixed detection mode field. For another example, the above examples 1 and 3 can also be combined into one embodiment. For another example, the above examples 1 to 3 can also be combined into one embodiment. Regarding the combination between different examples, they are no longer listed here one by one. When different examples are combined into one embodiment, whether the value of the first value is the same in different embodiments is not limited by the embodiment of the present application. Similarly, whether the value of the second value (or the third value, the fourth value, the fifth value) is the same in different embodiments is not limited by the embodiment of the present application.

[0250] The above examples 1 to 5 are for TB-aware measurement interaction. For example, the hybrid detection mode field can also indicate the non-TB-aware measurement interaction shown above. The following example illustrates the measurement mode of the hybrid detection mode field indicating the non-TB-aware measurement interaction.

[0251] As an example 6, when the value of the hybrid detection mode field is the first value, the first value may indicate that the perception PPDU in the non-TB perception measurement interaction is transmitted on the second frequency band, and the perception NDPA frame and the perception measurement report frame are both transmitted on the first frequency band.

[0252] As another example 7, when the value of the hybrid detection mode field is the second value, the second value may indicate that the perception PPDU and the report frame in the non-TB perception measurement interaction are both transmitted on the second frequency band, and the perception NDPA frame is transmitted on the first frequency band.

[0253] As yet another example 8, when the value of the hybrid probing mode field is a third value, the third value may indicate that all frames in the non-TB awareness measurement interaction are transmitted on the second frequency band.

[0254] Examples 6 to 8 can be independent embodiments, or can be combined into one embodiment. For the description of the combination, please refer to the above examples 1 to 5, which will not be described in detail here.

[0255] In the embodiment of the present application, the measurement request frame includes the hybrid detection mode field, so that the perception responding end can clearly and effectively know the measurement mode of the perception measurement session initiated by the perception initiating end.

[0256] (2) Transmit Beam List Field and Receive Beam List Field

[0257] For the perception measurement request frame, the transmission beam list field is used to indicate the index of the transmission beam used by the perception responder or the perception initiator in the perception measurement session. For example, the transmission beam can be the beam for transmitting the perception PPDU. The transmission beam list may indicate the index in an explicit manner, such as the transmission beam list may include the index of one or more transmission beams. Alternatively, the transmission beam list may indicate the index in an implicit manner, such as by indicating the transmission beam through a bitmap, and the transmission beam corresponding to the bit with a value of 1 in the bitmap may be the transmission beam used by the corresponding perception responder, and the transmission beam corresponding to the bit with a value of 0 in the bitmap is the transmission beam that cannot be used by the corresponding perception responder. For example, each perception responder may correspond to a bitmap.

[0258] The receive beam list field can be used to indicate the index of the receive beam used by the perception responder or the perception initiator in the perception measurement session. If the receive beam can be the beam for receiving the perception PPDU, the way in which the receive beam list indicates the index can be explicitly indicated, such as the receive beam list can include the index of one or more receive beams. Alternatively, the way in which the receive beam list indicates the index can also be implicitly indicated. For the description of implicit indication, please refer to the above-mentioned transmit beam list and will not be described in detail here. The specific way in which the transmit beam list or the receive beam list indicates the index is not limited in the embodiments of the present application.

[0259] The index shown in the embodiments of the present application can also be replaced with information such as an identifier or number for identifying a beam, and the embodiments of the present application are not limited to this. The embodiments of the present application are illustrated by using a transmit beam list or a receive beam list as an example. In specific implementations, it can also be replaced with a transmit beam set or a receive beam set, or one or more transmit beams, one or more receive beams, etc., and the embodiments of the present application are not limited to this.

[0260] The transmit beam list field and receive beam list field shown above may also be included in the ranging measurement request frame, which is not limited in this embodiment of the present application.

[0261] (3) Link identification field, channel identification field, and frequency band identification field

[0262] The measurement request frame may include one or more link identification fields, each of which may indicate the ID of a link. For example, when the measurement request frame includes multiple link identification fields, the multiple link identification fields may indicate multiple links. These multiple links may be links used to transmit the first frame in the perception measurement session. For example, some of the multiple links may be used to transmit the first frame at a low frequency, or some of the multiple links may be used to transmit the first frame at a high frequency.

[0263] The first frame may be at least one of the following: a measurement request frame, a measurement response frame, a polling frame, a CTS-to-self frame, an NDPA frame, a first PPDU, a detection trigger frame, a second PPDU, a report trigger frame, or a report frame. For an explanation of the first frame, reference may be made to the perception communication method or ranging communication method described above.

[0264] For example, PPDUs transmitted on the low frequency may correspond to the same link (or multiple links), and PPDUs transmitted on the high frequency may correspond to the same link (or multiple links). The multiple link identification fields in the measurement request frame may indicate the link (or multiple links) used to transmit the PPDU on the low frequency, and the link (or multiple links) used to transmit the PPDU on the high frequency.

[0265] The measurement request frame may include one or more channel identification (or channel ID) fields. Each channel identification field may indicate the ID of a channel. If the measurement request frame includes multiple channel identification fields, these multiple channel identification fields may indicate multiple channels. These multiple channels may be the channels used to transmit the first frame in the perception measurement session. For an explanation of the channel identification field, please refer to the description of the link identification field and will not be detailed here.

[0266] The measurement request frame may include one or more frequency band identification fields. Each frequency band identification field may indicate the ID of a frequency band. If the measurement request frame includes multiple frequency band identification fields, these multiple frequency band identification fields may indicate multiple frequency bands. These multiple frequency bands may be the frequency bands used to transmit the first frame in the perception measurement session. For an explanation of the frequency band identification field, refer to the description of the link identification field and will not be detailed here. For an explanation of the frequency point identification, refer to the description of the frequency band identification field and will not be detailed here.

[0267] Taking the perception measurement session as an example, for the link ID field:

[0268] The perception initiator needs to establish a perception measurement session on at least two links (or at least two channels, or at least two frequency bands). Each perception measurement session on a link may correspond to a set of perception parameters. Each set of perception parameters may include a link ID field. For example, the link ID field within a set of perception parameters may indicate the link for which the set of parameters is set.

[0269] The specific form of the above-mentioned perception parameters in the perception measurement request frame can be as follows: as an example, the perception parameters corresponding to each link can be a separate field. As another example, the same parameters corresponding to the above-mentioned at least two links can constitute a perception common parameter (sensingcommonparameters) field, and the parameters that cannot be shared on each link can constitute a perception link parameter (sensinglinkparameters) field. For example, the same parameters corresponding to each link can be carried in the perception common parameter field, and the parameters unique to the link itself can be carried in the parameter element of the link itself. For example, the parameters indicated in the perception common parameter field may not appear in the parameter elements of each link itself, such as the corresponding fields in the link's own parameter elements can be set as reserved, or do not carry the above-mentioned parameters (that is, the parameters shared by each link). For example, in the case where the link's own perception parameters are set in its own parameter element, the above-mentioned perception parameters may not appear in the perception common parameter field, such as the corresponding fields in the perception common parameter field can be set as reserved, or do not carry the above-mentioned perception parameters. The specific form of the perception parameters is not limited in the embodiments of the present application.

[0270] For example, the same parameters mentioned above may include, but are not limited to, a sensing measurement report requested or a measurement session expiry index. For descriptions of the sensing measurement report requested field and the measurement session expiry index field, reference may be made to relevant standards or protocols, and will not be described in detail here.

[0271] Exemplarily, the above-mentioned parameters that cannot be shared may include at least one of the following: BW field, maximum transmit integrated millimeter wave-long training field repetition (max TX IMMW-LTF repetition), maximum receive integrated millimeter wave-long training field repetition (max RX IMMW-LTF repetition), maximum transmit space-time stream (TX STS), maximum receive space-time stream (RXSTS), maximum transmit spatial stream (TX SS), maximum receive spatial stream (RX SS), number of receive antennas (number of RX antennas), number of receive chains (number of RX chains), report timestamp (report timestamp), Ng (or I Ng ), basic service set (BSS) color information (BSS color information), polarization sensing, polarization fusion, and report type. For descriptions of each field, please refer to the description of capability information above, or to the description of existing standards or protocols, etc., which will not be detailed here.

[0272] For example, the availability window and scheduling subelement fields can be shared by all links (i.e., included in the aforementioned common parameters), or can be parameters that cannot be shared between links (i.e., included in the aforementioned non-shared parameters). For example, the two fields can be carried in the sensing common parameters field, or carried in the sensing link parameters field of the corresponding link.

[0273] In this embodiment of the present application, the measurement request frame includes a link ID field, a channel ID field, or a frequency band ID field, allowing the initiator to indicate to the responder the link / channel / frequency band used to establish the current measurement session. The aforementioned link ID / channel ID / frequency band ID corresponds one-to-one to the actual link / channel / frequency point. After receiving the measurement request frame, the responder can clearly determine the link / channel / frequency band on which the measurement session established by the responder occurs through the aforementioned fields.

[0274] (4) Time information and cycle information

[0275] The measurement request frame may include time information, which may be used to indicate the window corresponding to the measurement session. For example, the time information may be used to indicate the perception window (or perception availability window) corresponding to the perception measurement session, or to indicate the ranging window (or ranging availability window) corresponding to the ranging measurement session. Through the time information, the perception initiator and the perception responder may perform perception measurement within the perception window indicated by the time information, or the ranging initiator and the ranging responder may perform ranging measurement within the ranging window indicated by the time information. Exemplarily, the above-mentioned time information may be present in the measurement request frame in the form of an element. For example, the time information may be carried in the RSTA availability window element (RSTA availability window element) (only as an example) in the measurement request frame. The embodiments of the present application do not limit the specific form in which the time information is carried in the measurement request frame.

[0276] Optionally, the measurement request frame may include period information, which may be used to indicate the period corresponding to the measurement session. For example, the period information may be used to indicate the period corresponding to the perception measurement session, or the period corresponding to the ranging measurement session. The period may also be the period of the window shown above. Exemplarily, the period information may be carried in the measurement request frame in the form of an element. For example, the time information may be carried in the RSTA available window element (for example only). The specific form in which the period information is carried in the measurement request frame is not limited in this embodiment of the present application.

[0277] The above-mentioned time information and period information can be carried in the same element (or the same field), or the above-mentioned time information and period information can be carried in different elements (or different fields). The specific form of the time information and period information in the measurement request frame is not limited in this embodiment of the present application.

[0278] The scheduling sub-element shown below can also be used to implement the aforementioned time information and period information functions. That is, as an example, a measurement request frame can include time information or period information. As another example, a measurement request frame can include a scheduling sub-element. As yet another example, time information, period information, or a scheduling sub-element can also appear in combination in a measurement request frame. This application does not limit the specific form of this combination. For example, the scheduling sub-element can be carried in an optional sub-element in a measurement request frame.

[0279] Table 3 exemplarily shows the format of the schedule sub-element.

[0280] Table 3

[0281] order Number of bytes (octets) Information 1 1 subelement ID 2 1 length 3 4 Start of burst 4 1 Inter-burst interval 5 2 Intra-burst interval 6 1 Number of transmit beams per exchange (number TX beamsperexchange) 7 1 Repeat per exchange 8 1 Number of bursts 9 1 Number of exchanges per burst

[0282] The lengths and names of the fields in Table 3 are only examples and should not be construed as limitations on the embodiments of the present application.

[0283] Figure 8 This is a schematic diagram of the format of the IMMW sensing measurement parameter element (IMMW sensing measurement parameter element) in the sensing measurement request frame provided in the embodiment of the present application. For an explanation of the IMMW ranging measurement parameter element in the ranging measurement request frame, please refer to Figure 8 , this application will not go into details.

[0284] like Figure 8 As shown, the IMMW perception measurement parameter may include at least one of the following: an element ID, a length, an element ID extension, an IMMW perception measurement parameter, or a sensing subelement (or optional subelement). The element ID field and the element ID extension field may be used to identify the IMMW perception measurement parameter element. The length field may be used to indicate the length of the IMMW perception measurement parameter element.

[0285] The IMMW perception measurement parameter field may include at least one of the following: a hybrid detection mode field (or called a hybrid detection field), a link ID field, a channel ID field, and a frequency band ID field. Figure 8 The hybrid detection mode field is shown as an example. For other fields Figure 8 Not shown. Exemplarily, the sensing subelement field may include at least one of the following: Figure 8 (not shown): transmit beam list field, receive beam list field, time information, cycle information or scheduling sub-element field. The description of each field or information shown here can be referred to above and will not be described in detail here.

[0286] Optionally, the IMMW perception measurement parameter field may further include at least one of the following: perception transmitter, perception receiver, single station perception, perception measurement report required, measurement session expiration index, BW, TX IMMW-LTF repetition, RX IMMW-LTF repetition, TX STS, RX STS, number of RX antennas, number of RX chains, report timestamp, I Ng(or Ng), BSS color information, polarization perception, polarization fusion or report type. The following exemplifies the meaning of several fields. For the meaning of other fields, please refer to the above or relevant standards or protocols, etc., and this application will not elaborate on them.

[0287] Sensing transmitter: used to indicate whether the sensing responder is a sensing transmitter.

[0288] Sensing receiver: used to indicate whether the sensing responder is a sensing receiver.

[0289] Monostatic sensing: used to indicate whether the sensing responder performs autonomous sensing.

[0290] It is understood that the embodiment of the present application uses the example of a single-station perception field indicating whether the perception responding terminal performs autonomous transmission and self-reception perception. In a specific implementation, the perception sending terminal field and the perception receiving terminal field may also be used to indicate whether the perception responding terminal performs autonomous transmission and self-reception perception. For example, when the value of the perception initiating terminal field and the value of the perception responding terminal field are both 0 or both 1, it indicates that the perception responding terminal can be either a perception sending terminal or a perception receiving terminal, that is, the perception responding terminal can perform autonomous transmission and self-reception perception.

[0291] Sensing measurement report requested: used to indicate whether the sensing responder needs to feedback the sensing measurement results. In other words, this field can indicate whether the sensing responder feeds back the sensing measurement results.

[0292] Measurement session expiry exponent: indicates the expiration exponent of the perception measurement session. This field can contain an unsigned integer indicating a period of time. Within the perception agreed time window, after the AP monitors the frames in the channel (such as frames related to the perception measurement session), it starts counting down for the duration indicated by this field. When the countdown ends, if there is still no frame interaction in the channel, the AP can consider that the current perception measurement session process has ended. For example, the value of this field can be 2 procedure expiry exponent+8 In milliseconds, the value of the procedure expiry exponent parameter is equal to the duration indicated by the measurement session expiry index field.

[0293] BW field: used to indicate bandwidth.

[0294] TX IMMW-LTF repetition field: can be used to indicate the number of repetitions of the transmitted IMMW-LTF.

[0295] RX IMMW-LTF repetition field: can be used to indicate the number of repetitions of the received IMMW-LTF.

[0296] RX STS field: can be used to indicate the number of received space-time streams of the perception PPDU.

[0297] RX STS field: can be used to indicate the number of received space-time streams of the perception PPDU.

[0298] The RX antennas field indicates the number of antennas used for reception. This field can also be replaced by the RX chains field. The RX chains field indicates the number of chains used for reception.

[0299] Optionally, the IMMW perception measurement parameter element may further include at least one of the following: Figure 8 not shown):

[0300] Number of exchanges per burst field: used to indicate the number of exchanges per burst.

[0301] The number of beams per exchange field indicates the number of beams in each exchange. This number can be the number of transmit beams in each measurement exchange, the number of receive beams in each measurement exchange, or the sum of the number of transmit beams and the number of receive beams. Alternatively, this number can be the number of beams in the first exchange.

[0302] The Repetition Per Interaction field is used to indicate the maximum number of repetitions of a transmission (signal) within each interaction, that is, the maximum number of repetitions of a beam sent within each interaction. Alternatively, this field can be used to indicate the maximum number of repetitions of a transmission (signal) within the first interaction.

[0303] The above descriptions of each field are only examples. For the meaning or description of each field, please refer to relevant standards or protocols, etc., which are not listed here one by one.

[0304] In this embodiment of the present application, the perception measurement request frame includes a hybrid detection mode field, enabling the perception responder to clearly understand the measurement mode of the perception measurement session between it and the perception initiator. Consequently, the perception initiator and the perception responder can perform perception based on the measurement mode indicated by the hybrid detection mode field, improving the flexibility of measurement mode indication and the efficiency of information exchange.

[0305] The Measurement Response frame may include a Status Code field, which may be used to indicate the responder's feedback result for the Measurement Request frame. The Status Code field may carry the following information: Success, Rejected with Suggested Changes, or Request Declined. For example, if the Status Code field carries Rejected with Suggested Changes, the Measurement Response frame may carry a Parameters element, which may carry information such as the parameters or measurement mode recommended by the responder.

[0306] For the sensing communication method, the parameter element in the sensing measurement response frame can be the parameter recommended by the sensing responder. For the ranging communication method, the parameter element in the measurement response frame can be the parameter assigned by the ranging responder to the ranging initiator, and specifically used by the ranging initiator in the ranging measurement session.

[0307] For example, the parameter element mentioned above may include a hybrid detection mode field. For the description of the hybrid detection mode field, please refer to the above and will not be described in detail here.

[0308] Regarding the stage of perception measurement interaction:

[0309] The following describes in detail the perception NDPA frame involved in the TB perception measurement interaction.

[0310] The perception NDPA frame may include at least one of the following: a beam indication field, a switching field, a count field, a total number field, or a sequence field.

[0311] (1) Beam indication field

[0312] The beam indication field can be used to indicate the transmit beam index used by the perception initiator or the receive beam index used by the perception responder in the perception measurement interaction corresponding to the perception NDPA frame in the perception measurement session (such as the NDPA detection phase). The aforementioned transmit beam index and receive beam index can also be used to determine the transmit beam index used by the perception responder. That is, the perception initiator can allocate the beam required to be used in this perception measurement interaction (such as the NDPA detection phase in this perception measurement interaction) to each perception responder in each perception measurement interaction. For example, the perception responder can obtain the transmit beam or receive beam of the perception PPDU in the NDPA detection phase in this perception measurement interaction through the above-mentioned beam indication field.

[0313] If the perception measurement request frame includes a transmit beam list field, the transmit beam index indicated by the beam indication field may be the index of a transmit beam in the transmit beam list, that is, the transmit beam indicated by the beam indication field may be included in the transmit beam list. If the perception measurement request frame includes a receive beam list field, the receive beam index indicated by the beam indication field may be the index of a receive beam in the receive beam list, that is, the receive beam indicated by the beam indication field may be included in the receive beam list.

[0314] Exemplarily, the beam indication field may carry a starting beam index (also referred to as a first beam index). The starting beam index may correspond to an index in a transmit beam list, or to an index in a receive beam list. That is, the sensing initiator may assign a starting beam index in this sensing measurement interaction to each sensing responder.

[0315] As an example, the starting beam index may be carried in a field in the beam indication field, and the starting beam index of the transmitting beam and the starting beam index of the receiving beam may be simultaneously indicated by the starting beam index.

[0316] As another example, the starting beam index can be carried in two fields in the beam indication field, and the two fields are used to indicate the starting index of the transmitting beam and the starting index of the receiving beam, respectively. The starting index shown here is relative to this perception measurement interaction. For example, the transmitting beam list includes multiple transmitting beams, and the receiving beam list includes multiple receiving beams. Through the starting beam index, the perception response end can clearly know which transmitting beams and receiving beams it uses in this perception measurement interaction. The index of the transmitting beam is included in the above-mentioned transmitting beam list, and the index of the receiving beam is included in the above-mentioned receiving beam list. Furthermore, the perception response end can also combine the starting beam index and the number of beams per interaction field in the perception measurement request frame to determine the transmitting beam or receiving beam used in the NDPA detection phase of this perception measurement interaction.

[0317] Figure 9a This is a format diagram of the perception NDPA frame provided in an embodiment of the present application. Figure 9a The STA info field is exemplarily shown when the AID (such as AID11) in the NDPA frame is detected to be less than 2008.

[0318] like Figure 9aAs shown, the beam indication field shown above is called the first beam index (first beam index) field. The specific name of the beam indication field is not limited in this embodiment of the application. The sensing initiator can use the first beam index field to assign the index of the starting beam used by each sensing responder (i.e., the sensing responder) in this sensing measurement interaction to each sensing responder.

[0319] The beam indication field is carried in the STA information field whose AID is less than the AID threshold (such as 2008), so that each perception responding end can clearly know the index of the starting beam allocated to it by the perception initiating end.

[0320] Figure 9a This example uses the beam indication field carried in the STA information field with an AID less than 2008. In a specific implementation, in this perception measurement interaction, when the perception initiator assigns the same starting beam index to each perception responder, the beam indication field may also be carried in the STA information field of a predetermined AID. The STA information field of the predetermined AID may include a STA information field with an AID greater than or equal to an AID threshold (e.g., 2008). In this case, in this perception measurement interaction, each perception responder can learn, through the STA information field, that the perception initiator has assigned a starting beam index to all perception responders.

[0321] The Awareness NDPA frame may also be combined with one or more fields in the Awareness Measurement Request frame shown above. For example, the Awareness NDPA frame may also include a Hybrid Probing Mode field. The following example illustrates this.

[0322] Figure 9b This is another format diagram of the perception NDPA frame provided in an embodiment of the present application. Figure 9b A format of the STA Info field is given to detect that the value of the AID11 field in the NDPA frame is 2045 (ie, AID11=2045). Figure 9b As shown, B27 can be set to a mixed detection mode field, that is, a mixed detection field. When this field is 1, it indicates that the NDPA detection phase is a high- and low-frequency mixed measurement mode; when this field is 0, it indicates that the NDPA detection phase is a normal measurement mode. Figure 9b The perception NDPA frame shown can be used in TB perception measurement interaction or in non-TB perception measurement interaction, which is not limited in this embodiment of the present application.

[0323] In addition to being carried in the STA Info field of AID11=2045, the hybrid detection mode field can also be carried in the STA Info field of other predetermined AIDs, which is not limited in this application. For example, the hybrid detection mode field can reuse reserved bits or other methods, which are not listed here one by one.

[0324] As an example, Figure 9a The content shown can be carried in the STA information field with an AID less than 2008 in the perception NDPA frame. Figure 9b The content shown may be carried in the STA information field of the predetermined AID in the NDPA-aware frame, or in the public information field.

[0325] As another example, Figure 9a-9b The contents shown can be carried in the STA information field of the predetermined AID in the perception NDPA frame, or carried in the public information field. Figure 9a-9b The shown contents may be combined, and the combined contents are carried in the STA information field or the common information field of the predetermined AID in the perception NDPA frame.

[0326] The description of the perception NDPA frame also applies to the ranging NDPA frame and will not be detailed here.

[0327] Figure 9c This is a format diagram of the ranging NDPA frame provided in the embodiment of the present application. For the specific description of the ranging NDPA frame, please refer to the relevant standards or protocols, or refer to the above. For example, Figure 9c As shown, any one or more bits of the B27-B30 fields reserved in the current 802.11az standard can be set as the mixed detection mode field to indicate a mixed high- and low-frequency measurement mode. Taking B28 as an example, when this field is 1, it indicates that the NDPA detection phase is a mixed high- and low-frequency measurement mode; when this field is 0, it indicates that the NDPA detection phase is a normal measurement mode. Figure 9c AID11 in the STA Info field can be equal to 2045. In addition to being carried in AID11=2045, the hybrid detection mode field can also be carried in the STA Info field of other predetermined AIDs, which is not limited in this application. This field can be indicated by multiplexing reserved bits or other methods, which are not listed here one by one. Figure 9c The ranging NDPA frame shown can be used in TB ranging measurement interaction or in non-TB ranging measurement interaction, which is not limited in this embodiment of the present application.

[0328] Figure 9b and Figure 9cThe NDPA frame shown can be applicable to the case where the NDPA frame is transmitted at a low frequency and the sensing / ranging PPDU is transmitted at a high frequency. For this hybrid detection mode, the embodiment of the present application adds a new method such as Figure 9b and Figure 9c The type of NDPA shown.

[0329] Figure 9a to Figure 9c The lengths or names of the various fields shown in are merely examples and should not be construed as limiting the embodiments of the present application. The above description uses an AID threshold of 2008 as an example. As standards evolve, the AID threshold may also change, and the embodiments of the present application do not limit this. Figure 9a The beam indication field is shown exemplarily in FIG, but the switching field and count field shown below are not shown.

[0330] Figure 9a to Figure 9c The NDPA frame shown is only an example. The NDPA frame can also be combined with other fields shown in this application. For example, the fields in the NDPA frame are not limited to the beam indication field, handover field, or count field shown in the embodiments of this application. The fields in the NDPA frame can also be in other frames shown in the embodiments of this application and can be carried in related fields in the NDPA frame. The description of the combination is not listed here one by one. In other words, the fields in the various frames shown in the embodiments of this application can be combined with each other.

[0331] (2) Switching fields

[0332] The Switch field can be used to indicate to the Awareness Responder whether the Awareness Initiator performs a frequency band switch after sending the Awareness NDPA frame. In other words, the Switch field can be used to indicate whether the Awareness PPDU following the Awareness NDPA frame is transmitted over a different frequency band. The different frequency band shown here is relative to the frequency band used to transmit the Awareness NDPA frame.

[0333] For example, if the Perception NDPA frame is transmitted over a low frequency, the Switch field can be used to indicate whether the Perception PPDU can be transmitted over a high frequency. In other words, the Switch field can be used to indicate to the Perception Responder whether the Perception Initiator should switch to a high frequency and transmit the Perception PPDU over that frequency. Alternatively, the Switch field can be used to indicate whether the Perception PPDU following the Perception NDPA frame will be transmitted over millimeter waves.

[0334] If the value of the switching field is 1, it indicates that the perception PPDU after the perception NDPA frame will be transmitted through another frequency band. For example, when the perception NDPA frame is transmitted through a low frequency, the perception PPDU can be transmitted through a high frequency. For example, when the value of the switching field is 0 (or reserved), it indicates that the perception PPDU after the perception NDPA frame will not be transmitted through another frequency band, that is, the perception NDPA frame and the perception PPDU are transmitted through the same frequency band. If the perception NDPA frame is transmitted through a low frequency (or high frequency), the perception PPDU can also be transmitted through a low frequency (or high frequency).

[0335] As an example, the handover field may be carried in the STA information field whose AID is less than an AID threshold (eg, 2008).

[0336] As another example, the handover field may be carried in the STA information field of a predetermined AID, where the STA information field of the predetermined AID may be a STA information field whose AID is greater than or equal to an AID threshold (e.g., 2008). For example, the handover field may be carried in the STA information field of an AID of 2045.

[0337] In an embodiment of the present application, the perception NDPA frame includes a switching field, so that the perception responding end can further know whether the perception initiating end will perform frequency band switching.

[0338] (3)Count field

[0339] The count field may be used to indicate to the perception responder the number of perception NDPA frames to be sent by the perception initiator.

[0340] As an example, the count field can be carried in the STA information field of the predetermined AID of the perception NDPA frame. Thus, all perception responding ends that receive the perception NDPA frame can clearly know how many perception NDPA frames the perception initiator will send after receiving the perception NDPA frame. Thus, the perception responding end can clearly know the duration from the time it receives the perception NDPA frame to the time it receives the perception PPDU (such as the first PPDU). That is, the perception responding end can clearly know the waiting time through the count field, and the waiting time can be the duration from the time the perception responding end receives the perception NDPA frame until it receives the perception PPDU.

[0341] As another example, the count field may be carried in the STA information field of the STA that senses that the AID in the NDPA frame is less than the AID threshold.

[0342] For example, when the perception NDPA frame is transmitted at a high frequency, such as when the perception initiator sends the perception NDPA frame in multiple directions, the perception NDPA frame may include a count field, thereby ensuring that the perception responders in all directions can receive the perception NDPA frame.

[0343] When the value of the count field is 0, it can indicate that the perception NDPA frame where the count field is located is the last perception NDPA frame. That is, the perception NDPA frame is the last perception NDPA frame sent by the perception initiator. For example, the perception initiator needs to send 5 perception NDPA frames. When the perception initiator sends the perception NDPA frame for the first time, the value of the count field can be 4, when the perception initiator sends the perception NDPA frame for the second time, the value of the count field can be 3, when the perception NDPA frame is sent for the third time, the value of the count field can be 2, when the perception NDPA frame is sent for the fourth time, the value of the count field can be 1, and when the perception NDPA frame is sent for the fifth time, the value of the count field can be 0.

[0344] The count field shown in the embodiment of the present application may also be referred to as an NDPA count field or a perceived NDPA frame count field, etc. The embodiment of the present application does not limit the specific name of the count field.

[0345] (4) Total quantity field and sequence field

[0346] As an example, the total number field can be used to indicate to the perception responder (i.e., the perception responder that receives the total number field): the total number Nsta of perception NDPA frames sent by the perception initiator in this perception measurement interaction. The order field can be used to indicate to the perception responder: the order of the perception NDPA frames received by the perception responder in this perception measurement interaction among the Nsta perception NDPA frames. Nsta is a positive integer.

[0347] As another example, the total number field can be used to indicate to the perception responder: the total number of perception responders participating in the interaction in this perception measurement interaction. In other words, the total number field can be used to indicate to the perception responder: how many perception responders the perception initiator coordinated to participate in the NDPA detection phase of this perception measurement interaction. The total number of perception responders can be the same as the total number of the above-mentioned perception NDPA frames. The sequence field can be used to indicate to the perception responder: the order of the perception responders receiving the perception NDPA frames in the total number in this perception measurement interaction. In other words, the sequence field can be used to indicate the perception responder receiving the sequence field is the nth perception responder in the NDPA detection phase (or the perception responder is the xth device receiving the perception NDPA frame, and the value of x is the same as the value indicated by the sequence field). The order of the perception responders is the same as the order of the above-mentioned perception NDPA frames.

[0348] For example, the total number field may be referred to as the Nsta field, and the sequence field may be referred to as the STA ID field. The value of the STA ID field may be x, where x is a positive integer less than or equal to Nsta.

[0349] For example, the total number field may be carried in the STA information field of the predetermined AID of the perception NDPA frame, and the sequence field may be carried in the STA information field corresponding to the perception responder.

[0350] Through the above-mentioned total number field and sequence field, the perception initiator can implicitly indicate to each perception responder that the perception initiator will subsequently send (Nsta-x) perception NDPA frames.

[0351] Optionally, the total quantity field, the sequence field, and the count field do not appear simultaneously in the perception NDPA frame. For example, the perception NDPA frame may include a count field, or may include a total quantity field and a sequence field, or may include a total quantity field or a sequence field. Optionally, the count field, the total quantity field, and the sequence field may also appear simultaneously in the perception NDPA frame, which is not limited in this embodiment of the present application.

[0352] When the perception initiator sends multiple perception NDPA frames simultaneously, the total number field and the sequence field can be set to reserved or predetermined values. For example, the count field can also be set to a reserved or predetermined value. Optionally, the perception NDPA frame can also include a field that can be used to indicate the transmission mode of the perception NDPA frame.

[0353] For descriptions of other fields in the perception NDPA frame, please refer to relevant standards or protocols, etc., and this application will not go into details.

[0354] The following describes in detail the detection trigger frame involved in the TB perception measurement interaction.

[0355] As a possible implementation, as shown above, the detection trigger frame can be transmitted at a low frequency, and the sensing / ranging PPDU can be transmitted at a high frequency. For this hybrid detection mode, the embodiment of the present application adds a new trigger subtype under the ranging trigger or the sensing trigger. The following details:

[0356] The current trigger type subfield is shown in Table 4:

[0357] Table 4

[0358]

[0359] In Table 4, when the value of the trigger type subfield is 8, the value may indicate that the trigger frame is a trigger frame for ranging or for sensing.

[0360] Figure 10 Schematic diagram of the format of the trigger-related public information field in the detection trigger frame provided by the embodiment of the present application. Figure 10 As shown, the B4 bit in the trigger-related public information field can be used to distinguish whether the trigger frame carrying this field is a ranging detection trigger frame (such as B4 reserved or B4=0) or a sensing detection trigger frame (such as B4=1).

[0361] In the embodiment of the present application, a new subtype is added to the perception trigger subtype field. Table 5 exemplarily shows the perception trigger subtype field with a new subtype.

[0362] Table 5

[0363]

[0364] As shown in Table 5, when the value of the perception trigger subtype field in the trigger-related common information field is 5, the value may indicate that the trigger frame is a trigger frame in the SR2SI hybrid detection mode. The relevant description of the perception detection trigger frame here also applies to the ranging detection trigger frame.

[0365] Generally speaking, the detection trigger frame may include a trigger-related public information field and a user information field. For example, the description of the trigger-related public information field can be referred to Figure 10 or Table 5. Below Figure 11 The user information field shown can be combined with the trigger-related common information field shown in Table 4 above, or the trigger-related common information field shown in Table 5 above. For a description of the user information field, please refer to the following text. Of course, at least one of the beam indication field, handover field, and link ID field shown below can also be carried in the trigger-related common information field in the sounding trigger frame.

[0366] In an embodiment of the present application, the detection trigger frame may include at least one of the following: a beam indication field, a switching field, a link ID field, a channel ID field, or a frequency band ID field.

[0367] (1) Beam indication field

[0368] The beam indication field is used to indicate the transmit beam index used by the perception responder, or the receive beam index used by the perception responder, in the perception measurement interaction corresponding to the detection trigger frame in the perception measurement session. The receive beam index can be used to determine the transmit beam index.

[0369] For other explanations about the beam indication field, please refer to the above and will not be described in detail here.

[0370] Figure 11 This is a schematic diagram of the format of the detection trigger frame provided in an embodiment of the present application. Figure 11 The user information field (userinfofield) is exemplarily shown when the AID (e.g., AID12) in the detection trigger frame is not equal to the AID threshold. Alternatively, the format of the user information field is also applicable to the user information field when the USID (e.g., USID12) in the detection trigger frame is not equal to the USID threshold. For example, AID threshold = 2008. The specific values ​​of the AID threshold or USID threshold are not limited in this embodiment of the application.

[0371] like Figure 11 As shown, the user information field may include a first beam index field (ie, a beam indication field). For an explanation of the first beam index field, please refer to Figure 9a , which will not be described in detail here.

[0372] In an embodiment of the present application, the perception initiator may be the receiving end of the second PPDU, so the first beam index field may be used to indicate the index of the transmitting beam used by the perception responder.

[0373] and Figure 9a Similar to the beam indication field shown, when the perception initiator allocates the same starting beam to each perception responder in the TF detection phase of this perception measurement interaction, the beam indication field can be carried in the trigger-dependent common information field in the detection trigger frame.

[0374] about Figure 11 The description of the beam indication field shown can be referred to Figure 9a The relevant description in will not be repeated here.

[0375] (2) Switch fields

[0376] This field indicates to the Sensing Responder whether the Sensing Initiator performs a frequency band switch after sending a Probe Trigger Frame. Alternatively, the Switch field indicates whether the Sensing PPDU following the Probe Trigger Frame should be transmitted on a different frequency band. The "different frequency band" shown here refers to the frequency band used to transmit the Probe Trigger Frame.

[0377] For example, if the detection trigger frame is transmitted on a low frequency, the switch field can be used to indicate whether the perception PPDU can be transmitted on a high frequency. In other words, the switch field can be used to indicate whether the perception responder needs to switch to a high frequency and transmit the perception PPDU on the high frequency. Alternatively, the switch field can be used to indicate whether the perception PPDU following the detection trigger frame will be transmitted on mmWave.

[0378] If the value of the switch field is 1, it indicates that the perception PPDU following the detection trigger frame needs to be transmitted through another frequency band. For example, when the detection trigger frame is transmitted through a low frequency, the perception PPDU can be transmitted through a high frequency. For example, when the value of the switch field is 0, it indicates that the perception PPDU following the detection trigger frame will not be transmitted through another frequency band, that is, the detection trigger frame and the perception PPDU are transmitted through the same frequency band. If the detection trigger frame is transmitted through a low frequency (or high frequency), the perception PPDU can also be transmitted through a low frequency (or high frequency).

[0379] As an example, the handover field may be carried in the user information field when the AID (or USID) is not equal to 2008. As another example, the handover field may be carried in the trigger-related public information field.

[0380] (3) Link ID field

[0381] The Link ID field may be used to indicate the transmission link of the sensing PPDU following the detection trigger frame.

[0382] Exemplarily, in the case where one or more link ID fields are carried in the perception measurement request frame, the detection trigger frame may include a link ID field, and the link ID field may be used to indicate the sending link of the perception PPDU following the detection trigger frame. The sending link may be one of the one or more links indicated by the one or more link ID fields in the perception measurement request frame. In other words, in the establishment phase of the perception measurement session, the perception initiator indicates through multiple link ID fields that it has established a perception measurement session with the perception responder on more than one link. In this case, the perception initiator may carry a link ID field in the detection trigger frame, and the link ID field in the detection trigger frame may be used to indicate the sending link of the perception PPDU following the detection trigger frame. The number of link ID fields in the detection trigger frame is not limited in the embodiments of the present application.

[0383] Similarly, the detection trigger frame may also include a channel ID field or a frequency band ID field. The channel ID field may be used to indicate the transmission channel of the perception PPDU following the detection trigger frame. The frequency band ID field may be used to indicate the transmission frequency band of the perception PPDU following the detection trigger frame.

[0384] As an example, the link ID field can be carried in the trigger-related public information field. The link ID field in the trigger-related public information field can be used to indicate the transmission link of the perception PPDU of each perception responder. In this case, the perception initiator can trigger multiple perception responders to send perception PPDUs at the same time through the detection trigger frame, such as the perception initiator can schedule the multiple perception responders to send perception PPDUs on non-conflicting resources. Non-conflicting resources can include different spatial streams, or different RU multi-user resource units (multiple RU, MRU) or distributed resource units (distributed resource unit, DRU), etc.

[0385] As another example, the Link ID field can be included in the User Information field. The Link ID field in the User Information field can be used to indicate the link over which the Awareness PPDU of the Awareness Responder corresponding to the User Information field is transmitted. Thus, the Awareness Initiator can schedule different Awareness Responders to different links to transmit Awareness PPDUs.

[0386] For the description of the channel ID field or the frequency band ID field, please refer to the description of the link ID field and will not be described in detail here.

[0387] The following describes in detail the perception NDPA frame involved in the non-TB perception measurement interaction.

[0388] The perception NDPA frame may include at least one of the following: a beam indication field, a handover field, a link ID field, a channel ID field, or a band ID field.

[0389] In the non-TB perception measurement interaction, when performing bidirectional measurements (i.e., the initiator (non-AP STA) acts as the perception transmitter and the responder (AP STA) acts as the perception receiver; or the responder (AP STA) acts as the perception transmitter and the initiator (non-AP STA) acts as the perception receiver), the beam indication field can be used to indicate at least one of the following: the index of the transmit beam used by the perception initiator, the index of the receive beam used by the perception responder, the index of the transmit beam used by the perception responder, or the index of the receive beam used by the perception initiator. For example, the beam indication field can indicate the starting index of the transmit beam used by the perception transmitter, or the starting index of the receive beam used by the perception receiver, etc. The specific content indicated by the beam indication field can be set in combination with the specific steps of the non-TB perception measurement interaction shown above. For the description of the beam indication field, please refer to the above and will not be described in detail here.

[0390] In the non-TB perception measurement interaction, in the case of bidirectional measurement, the switching field can be used to indicate to the perception responder whether the perception initiator performs frequency band switching after sending the perception NDPA frame. In other words, the switching field can be used to indicate whether the perception PPDU after the perception NDPA frame is transmitted through another frequency band. For the description of the switching field, please refer to the above and will not be described in detail here. For the description of the link ID field, channel ID field or band ID field, please refer to the above and will not be described in detail here.

[0391] Figure 12 This is a schematic diagram of the format of the NDPA perception frame provided in the embodiment of the present application. Figure 11 The description can be found above and will not be detailed here.

[0392] Exemplarily, the NDPA-aware frame may also include a group ID field, which may identify the group.

[0393] Generally speaking, millimeter waves can use a group transmission mechanism. For example, a group transmission can have multiple interactions, which can complete Doppler-related measurements. To exchange group transmission information, the Perception NDPA frame can include a Group Transmission ID field to identify the group transmission. For example, the Group Transmission ID field can be carried in the STA Information field of the Predetermined AID in the Perception NDPA frame. For example, the AID of the Predetermined AID can be greater than or equal to 2008. For example, the AID of the Predetermined AID can be 2046.

[0394] The following describes in detail the SBP request frame involved in the embodiments of the present application.

[0395] As a possible implementation, the SBP request frame includes an SBP report link ID field, which can be used to indicate the sending link of the SBP report frame, or the transmission link of the SBP report frame. In other words, the SBP report link ID field can be used to indicate to the SBP responder that the SBP initiator expects to receive the SBP report frame on the indicated link. The name of the SBP report link ID field shown here is only an example and should not be understood as a limitation of the embodiments of the present application. The link ID field shown here can also be replaced by a channel ID field or a frequency band ID field. Of course, the SBP request frame can also include at least two of the link ID field, the channel ID field, or the frequency band ID field at the same time.

[0396] The specific form of the SBP report link ID field in the SBP request frame is not limited in the embodiments of the present application. For example, the SBP report link ID field can be carried in the SBP request frame as a separate field; or, the SBP report link ID field can be carried in the SBP request frame in the form of an element.

[0397] Exemplarily, when the SBP response frame includes the "rejected_with_suggested_changes" field, the SBP response frame may also include the SBP report link ID field, which will not be described in detail here.

[0398] As another possible implementation, the SBP initiator, by default, receives SBP report frames on the link where the SBP request frame was sent. That is, the SBP responder can send SBP report frames on the link where it received the SBP request frame. In this case, the standard can specify this behavior without modifying the frame format.

[0399] The following describes a communication device according to an embodiment of the present application.

[0400] The present application divides the functional modules of the communication device according to the above method embodiment. For example, each functional module can be divided according to each function, or two or more functions can be integrated into one processing module. The above integrated modules can be implemented in the form of hardware or in the form of software functional modules. It should be noted that the division of modules in this application is schematic and is only a logical function division. There may be other division methods in actual implementation. The following will be combined with Figures 13 to 15 The communication device according to the embodiment of the present application is described in detail.

[0401] The communication device shown in the embodiment of the present application may also be called a perception communication device or a ranging communication device, etc. The present application does not limit the specific name of the device.

[0402] Figure 13 This is a schematic diagram of the structure of a communication device provided in an embodiment of the present application. Figure 13 As shown, the communication device includes a processing module 1301 and a transceiver module 1302. The transceiver module 1302 can implement corresponding communication functions, and the processing module 1301 is used to implement corresponding processing functions. For example, the transceiver module 1302 can also be called an interface module, a communication interface, a communication module, or an input / output interface.

[0403] In some embodiments of the present application, the communication device can be used to execute the actions performed by the perception initiator in the above method embodiments. In this case, the perception initiator can be the perception device itself or a chip or functional module configurable in the device. The transceiver module 1302 is used to execute the transceiver-related operations or input / output-related operations of the perception initiator in the above method embodiments, and the processing module 1301 is used to execute the processing-related operations of the perception initiator in the above method embodiments.

[0404] The transceiver module 1302 may be configured to send or output a sensing measurement request frame and receive or input a sensing measurement response frame. For example, the processing module 1301 may be configured to generate a sensing measurement request frame and parse a sensing measurement response frame.

[0405] As an example, the transceiver module 1302 may be configured to send a sensing measurement request frame, such as sending the sensing measurement request frame to the sensing responder. For example, the transceiver module 1302 may include a radio frequency module, an antenna module, and the like.

[0406] As another example, the transceiver module 1302 may be configured to output a sensing measurement request frame. For example, the transceiver module 1302 may include an input and output module.

[0407] For example, the transceiver module 1302 can also be used to send or output polling frames and receive or input CTS-to-self frames. For example, the processing module 1301 can be used to generate polling frames and parse CTS-to-self frames.

[0408] For example, the transceiver module 1302 may be configured to send or output the NDPA-aware frame. The processing module 1301 may be configured to generate the NDPA-aware frame.

[0409] For example, the transceiver module 1302 may be configured to send or output a sensing detection trigger frame. The processing module 1301 may be configured to generate the sensing detection trigger frame.

[0410] For example, the transceiver module 1302 may also be used to send or output a perception PPDU; or, to receive or input a perception PPDU.

[0411] For example, the transceiver module 1302 may be used to send or output a report trigger frame, and receive or input a report frame. For example, the processing module 1301 may be used to generate a report trigger frame, and parse a report frame.

[0412] For detailed description of the perception initiator, please refer to the method embodiment shown above, which will not be listed here one by one.

[0413] Reuse Figure 13 In other embodiments of the present application, the communication device can be used to perform the actions performed by the perception response end in the above method embodiments. In this case, the communication device can be the perception device itself or a chip or functional module that can be configured in the device. The transceiver module 1302 is used to perform the transceiver-related operations or input / output-related operations of the perception response end in the above method embodiments, and the processing module 1301 is used to perform the processing-related operations of the perception response end in the above method embodiments.

[0414] The transceiver module 1302 may be configured to receive or input a sensing measurement request frame and to send or output a sensing measurement response frame. For example, the processing module 1301 may be configured to parse the sensing measurement request frame and generate a sensing measurement response frame.

[0415] As an example, the transceiver module 1302 may be configured to receive a sensing measurement request frame from a sensing initiator. For example, the transceiver module 1302 may include a radio frequency module, an antenna module, and the like.

[0416] As another example, the transceiver module 1302 may be configured to input a sensing measurement request frame. For example, after being processed by the antenna and RF module, the sensing measurement request frame is input to the transceiver module 1302 so that the processing module 1301 can parse the sensing measurement request frame. For example, the transceiver module 1302 may include input and output modules.

[0417] For example, the transceiver module 1302 can also be used to receive or input polling frames and send or output CTS-to-self frames. For example, the processing module 1301 can be used to parse polling frames and generate CTS-to-self frames.

[0418] For example, the transceiver module 1302 may also be used to receive or input a perception NDPA frame. The processing module 1301 may be used to parse the perception NDPA frame and determine whether it needs to receive a perception PPDU based on the perception NDPA frame.

[0419] For example, the transceiver module 1302 may be further configured to receive or input a sensing detection trigger frame. The processing module 1301 may be configured to parse the sensing detection trigger frame and determine a measurement resource for sending a sensing PPDU based on the sensing detection trigger frame.

[0420] For example, the transceiver module 1302 may also be used to receive or input a perception PPDU, or to send or output a perception PPDU.

[0421] For example, the transceiver module 1302 may be used to receive or input a report trigger frame, and to send or output a report frame. For example, the processing module 1301 may be used to parse the report trigger frame and generate a report frame.

[0422] Reuse Figure 13 In some other embodiments of the present application, the communication device can be used to perform the actions performed by the ranging initiator in the above method embodiments. In this case, the ranging initiator can be the ranging device itself or a chip or functional module configurable in the device. The transceiver module 1302 is used to perform the transceiver-related operations or input / output-related operations of the ranging initiator in the above method embodiments, and the processing module 1301 is used to perform the processing-related operations of the ranging initiator in the above method embodiments. TB ranging measurement interaction is used as an example for explanation.

[0423] The transceiver module 1302 may be used to send or output ranging measurement request frames and receive or input ranging measurement response frames. For example, the processing module 1301 may be used to generate ranging measurement request frames and parse ranging measurement response frames.

[0424] As an example, the transceiver module 1302 may be configured to send a ranging measurement request frame, such as sending the ranging measurement request frame to the ranging response end. For example, the transceiver module 1302 may include a radio frequency module, an antenna module, and the like.

[0425] As another example, the transceiver module 1302 may be configured to output a ranging measurement request frame. For example, the transceiver module 1302 may include an input and output module.

[0426] For example, the transceiver module 1302 can also be used to receive or input polling frames and send or output CTS-to-self frames. For example, the processing module 1301 can be used to parse polling frames and generate CTS-to-self frames.

[0427] For example, the transceiver module 1302 may be configured to receive or input a ranging NDPA frame. The processing module 1301 may be configured to parse the ranging NDPA frame.

[0428] For example, the transceiver module 1302 may be used to receive or input a ranging detection trigger frame. The processing module 1301 may be used to parse the ranging detection trigger frame.

[0429] For example, the transceiver module 1302 may also be used to send or output ranging PPDU; or, to receive or input ranging PPDU.

[0430] For example, the transceiver module 1302 may be used to receive or input a report frame. For example, the processing module 1301 may be used to parse the report frame.

[0431] For example, the transceiver module 1302 may be used to send or output a report frame. For example, the processing module 1301 may be used to generate a report frame.

[0432] The above content is based on the example of TB ranging measurement interaction. For non-TB ranging measurement interaction:

[0433] The transceiver module 1302 may be configured to send or output a ranging NDPA frame. The processing module 1301 may be configured to generate the ranging NDPA frame.

[0434] The transceiver module 1302 may also be configured to send or output ranging PPDUs, or receive or input ranging PPDUs.

[0435] The transceiver module 1302 may also be used to receive or input a report frame. The processing module 1301 may be used to parse the report frame.

[0436] The transceiver module 1302 may also be used to send or output a report frame. The processing module 1301 may be used to generate the report frame.

[0437] For detailed description of the ranging initiator, please refer to the method embodiments shown above, which will not be listed here one by one.

[0438] Reuse Figure 13 In some other embodiments of the present application, the communication device can be used to perform the actions performed by the ranging response end in the above method embodiments. In this case, the communication device can be the ranging device itself, or a chip or functional module that can be configured in the device. The transceiver module 1302 is used to perform the transceiver-related operations or input / output-related operations of the ranging response end in the above method embodiments, and the processing module 1301 is used to perform the processing-related operations of the ranging response end in the above method embodiments.

[0439] The transceiver module 1302 may be configured to receive or input a ranging measurement request frame and to send or output a ranging measurement response frame. For example, the processing module 1301 may be configured to parse the ranging measurement request frame and generate a ranging measurement response frame.

[0440] As an example, the transceiver module 1302 may be configured to receive a ranging measurement request frame from a ranging initiator, such as a radio frequency module, an antenna module, and the like.

[0441] As another example, the transceiver module 1302 may be configured to input a ranging measurement request frame. For example, after being processed by the antenna and RF module, the ranging measurement request frame is input by the transceiver module 1302 so that the processing module 1301 can parse the ranging measurement request frame. For example, the transceiver module 1302 may include input and output modules.

[0442] For example, the transceiver module 1302 can also be used to send or output polling frames and receive or input CTS-to-self frames. For example, the processing module 1301 can be used to generate polling frames and parse CTS-to-self frames.

[0443] For example, the transceiver module 1302 may be configured to send or output a ranging NDPA frame. The processing module 1301 may be configured to generate the ranging NDPA frame.

[0444] For example, the transceiver module 1302 may be used to send or output a ranging detection trigger frame. The processing module 1301 may be used to generate the ranging detection trigger frame.

[0445] For example, the transceiver module 1302 may also be used to receive or input a ranging PPDU, or to send or output a ranging PPDU.

[0446] For example, the transceiver module 1302 may be used to send or output a report frame. For example, the processing module 1301 may be used to generate a report frame.

[0447] For example, the transceiver module 1302 may be used to receive or input a report frame. For example, the processing module 1301 may be used to parse the report frame.

[0448] The above content is based on the example of TB ranging measurement interaction. For non-TB ranging measurement interaction:

[0449] The transceiver module 1302 may be configured to receive or input a ranging NDPA frame. The processing module 1301 may be configured to parse the ranging NDPA frame.

[0450] The transceiver module 1302 may also be configured to send or output ranging PPDUs, or receive or input ranging PPDUs.

[0451] The transceiver module 1302 may also be used to send or output a report frame. The processing module 1301 may be used to generate the report frame.

[0452] The transceiver module 1302 may also be used to receive or input a report frame. The processing module 1301 may be used to parse the report frame.

[0453] Reuse Figure 13In some other embodiments of the present application, a communication device can be used to execute the actions performed by the SBP initiator in the above method embodiments. In this case, the communication device can be the sensing device itself or a chip or functional module configurable in the device. The transceiver module 1302 is used to execute the transceiver-related operations or input / output-related operations of the SBP initiator in the above method embodiments, and the processing module 1301 is used to execute the processing-related operations of the SBP initiator in the above method embodiments.

[0454] The transceiver module 1302 can be used to send or output SBP request frames and receive or input SBP response frames. For example, the processing module 1301 can be used to generate SBP request frames and parse SBP response frames.

[0455] As an example, the transceiver module 1302 may be configured to send an SBP request frame, such as sending the SBP request frame to an SBP responder. For example, the transceiver module 1302 may include a radio frequency module, an antenna module, and the like.

[0456] As another example, the transceiver module 1302 may be configured to output an SBP request frame. For example, the transceiver module 1302 may include an input and output module.

[0457] The transceiver module 1302 may also be configured to receive or input an SBP report frame.

[0458] Reuse Figure 13 In some other embodiments of the present application, the communication device can be used to perform the actions performed by the SBP responder in the above method embodiments. In this case, the communication device can be the sensing device itself or a chip or functional module that can be configured in the device. The transceiver module 1302 is used to perform the transceiver-related operations or input / output-related operations of the SBP responder in the above method embodiments, and the processing module 1301 is used to perform the processing-related operations of the SBP responder in the above method embodiments.

[0459] The transceiver module 1302 can be used to receive or input an SBP request frame and send or output an SBP response frame. The processing module 1301 can be used to parse the SBP request frame and generate an SBP response frame.

[0460] As an example, the transceiver module 1302 may be configured to receive an SBP request frame from an SBP initiator. For example, the transceiver module 1302 may include a radio frequency module, an antenna module, and the like.

[0461] As another example, transceiver module 1302 may be configured to input an SBP request frame. After being processed by the antenna and RF module, the SBP request frame is input to transceiver module 1302 so that processing module 1301 can parse the SBP request frame. For example, transceiver module 1302 may include input and output modules.

[0462] The transceiver module 1302 may also be configured to send or output an SBP report frame.

[0463] Optionally, in each of the above embodiments, the device may further include a storage module, which may be used to store instructions and / or data, and the processing module 1301 may read the instructions and / or data in the storage module so that the device implements the above method embodiments.

[0464] In the above embodiments, for specific descriptions of terms or steps such as SBP request frame, SBP response frame, perception measurement request frame, perception measurement response frame, NDPA frame, detection trigger frame, perception PPDU or ranging PPDU, please refer to the introduction in the above method embodiment and will not be described in detail here.

[0465] The specific descriptions of the transceiver module and the processing module shown in the above embodiments are only examples. For the specific functions or execution steps of the transceiver module and the processing module, please refer to the above method embodiments and will not be described in detail here.

[0466] It is understandable that the division of modules in the above-mentioned device is merely a division of logical functions, and each function may correspond to a functional module, or two or more functions may be integrated into one functional module. In actual implementation, all or part of the modules may be integrated into one physical entity, or distributed across different physical entities. In addition, the above-mentioned functional modules may be implemented in the form of hardware, software, or a combination of hardware and software. Whether a function is executed in hardware or software depends on the specific application and design constraints of the technical solution. Professional and technical personnel may use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of this application.

[0467] In one example, the functional unit in any of the above devices can be one or more integrated circuits configured to implement the above method, such as: one or more application specific integrated circuits (ASICs), or, one or more central processing units (CPUs), one or more microprocessors (MCUs), one or more digital signal processors (DSPs), or, one or more field programmable gate arrays (FPGAs), or a combination of at least two of these integrated circuit forms.

[0468] The above describes the device of the embodiment of the present application, and the following describes the possible product forms of the device. Figure 13 Any form of product that has the functions of the device described above falls within the scope of protection of the embodiments of the present application. The following description is for illustrative purposes only and does not limit the product form of the device of the embodiments of the present application to this.

[0469] In one possible implementation, Figure 13 In the illustrated communication device, processing module 1301 may be one or more processors, and transceiver module 1302 may be a transceiver. Alternatively, transceiver module 1302 may be a transmitting module and a receiving module, wherein the transmitting module may be a transmitter and the receiving module may be a receiver, and the transmitting module and receiving module are integrated into a single device, such as a transceiver. In embodiments of the present application, the processor and transceiver may be coupled, and the connection method between the processor and transceiver is not limited in embodiments of the present application. During the execution of the above-described method, the process of sending information in the above-described method may be the process of the processor outputting the above-described information. When outputting the above-described information, the processor outputs the above-described information to the transceiver for transmission by the transceiver. After being output by the processor, the above-described information may require further processing before reaching the transceiver. Similarly, the process of receiving information in the above-described method may be the process of the processor receiving the above-described information. When the processor receives the input information, the transceiver receives the above-described information and inputs it into the processor. Furthermore, after the transceiver receives the above-described information, the above-described information may require further processing before being input into the processor.

[0470] Figure 14 This is another structural diagram of the communication device provided in the embodiment of the present application. Figure 14 As shown, the communication device 140 includes one or more processors 1420 and a transceiver 1410 .

[0471] In some embodiments of the present application, the communication device may be used to execute the steps, methods, or functions executed by the above-mentioned perception initiator, such as the processor 1420 may be used to execute the following steps: Figure 13 The functions or steps implemented by the processing module 1301 shown in FIG. 14 are implemented by the transceiver 1410. Figure 13 The functions or steps implemented by the transceiver module 1302 are shown in FIG. Figure 13 Or the method embodiments shown above will not be described in detail here.

[0472] In other embodiments of the present application, the communication device is used to execute the steps, methods or functions executed by the above-mentioned perception response terminal, such as the processor 1420 can be used to execute the following steps: Figure 13 The functions or steps implemented by the processing module 1301 shown in FIG. 14 are implemented by the transceiver 1410. Figure 13 The functions or steps implemented by the transceiver module 1302 are shown in FIG. Figure 13 Or the method embodiments shown above will not be described in detail here.

[0473] In some embodiments of the present application, the communication device may be used to execute the steps, methods, or functions executed by the ranging initiator, such as the processor 1420 may be used to execute the steps, methods, or functions executed by the ranging initiator. Figure 13 The functions or steps implemented by the processing module 1301 shown in FIG. 14 are implemented by the transceiver 1410. Figure 13 The functions or steps implemented by the transceiver module 1302 are shown in FIG. Figure 13 Or the method embodiments shown above will not be described in detail here.

[0474] In other embodiments of the present application, the communication device is used to execute the steps, methods or functions executed by the ranging response end, such as the processor 1420 can be used to execute the following steps: Figure 13 The functions or steps implemented by the processing module 1301 shown in FIG. 14 are implemented by the transceiver 1410. Figure 13 The functions or steps implemented by the transceiver module 1302 are shown in FIG. Figure 13 Or the method embodiments shown above will not be described in detail here.

[0475] In some embodiments of the present application, the communication device may be used to execute the steps, methods, or functions executed by the above-mentioned SBP initiator, such as the processor 1420 may be used to execute the following steps: Figure 13The functions or steps implemented by the processing module 1301 shown in FIG. 14 are implemented by the transceiver 1410. Figure 13 The functions or steps implemented by the transceiver module 1302 are shown in FIG. Figure 13 Or the method embodiments shown above will not be described in detail here.

[0476] In other embodiments of the present application, the communication device is used to execute the steps, methods or functions executed by the above-mentioned SBP responder, such as the processor 1420 can be used to execute the following steps: Figure 13 The functions or steps implemented by the processing module 1301 shown in FIG. 14 are implemented by the transceiver 1410. Figure 13 The functions or steps implemented by the transceiver module 1302 are shown in FIG. Figure 13 Or the method embodiments shown above will not be described in detail here.

[0477] exist Figure 14 In various implementations of the apparatus shown, the transceiver may include a receiver and a transmitter, wherein the receiver is configured to perform a receiving function (or operation) and the transmitter is configured to perform a transmitting function (or operation), and the transceiver is configured to communicate with other devices / apparatuses via a transmission medium.

[0478] Optionally, the communication device 140 may further include one or more memories 1430 for storing program instructions and / or data. The memory 1430 is coupled to the processor 1420. The coupling in the embodiment of the present application is an indirect coupling or communication connection between devices, units or modules, which can be electrical, mechanical or other forms, and is used for information exchange between devices, units or modules. The processor 1420 may operate in conjunction with the memory 1430. The processor 1420 may execute program instructions stored in the memory 1430. Optionally, at least one of the above-mentioned one or more memories may be included in the processor.

[0479] The specific connection medium between the transceiver 1410, the processor 1420 and the memory 1430 is not limited in the embodiment of the present application. Figure 14 The memory 1430, the processor 1420 and the transceiver 1410 are connected via a bus 1440. Figure 14 The connections between the other components are shown in bold lines, which are only for illustration and are not intended to be limiting. The bus can be divided into an address bus, a data bus, a control bus, etc. For ease of illustration, Figure 14 Only one thick line is used in the diagram, but this does not mean that there is only one bus or one type of bus.

[0480] In the embodiments of the present application, the processor may be a general-purpose processor, a digital signal processor, an application-specific integrated circuit, a field programmable gate array or other programmable logic device, a discrete gate or transistor logic device, a discrete hardware component, etc., and may implement or execute the various methods, steps, and logic block diagrams disclosed in the embodiments of the present application. The general-purpose processor may be a microprocessor or any conventional processor, etc. The steps of the methods disclosed in the embodiments of the present application may be directly implemented as being executed by a hardware processor, or may be executed by a combination of hardware and software modules in the processor, etc.

[0481] In the embodiment of the present application, memory may include but is not limited to non-volatile memories such as hard disk drive (HDD) or solid-state drive (SSD), random access memory (RAM), erasable programmable read-only memory (EPROM), read-only memory (ROM) or portable read-only memory (CD-ROM), etc. Memory is any storage medium that can be used to carry or store program code in the form of instructions or data structures and can be read and / or written by a computer (such as the device shown in the present application), but is not limited to this. The memory in the embodiment of the present application can also be a circuit or other arbitrarily capable of realizing a storage function, for storing program instructions and / or data.

[0482] The processor 1420 is primarily used to process communication protocols and communication data, control the entire device, execute software programs, and process software program data. The memory 1430 is primarily used to store software programs and data. The transceiver 1410 may include a control circuit and an antenna. The control circuit is primarily used to convert baseband signals into radio frequency signals and process radio frequency signals. The antenna is primarily used to transmit and receive radio frequency signals in the form of electromagnetic waves. Input and output devices, such as a touch screen, display, and keyboard, are primarily used to receive user input and output data to the user.

[0483] When the device is powered on, processor 1420 can read the software program stored in memory 1430, interpret and execute the software program's instructions, and process the software program's data. When data needs to be transmitted wirelessly, processor 1420 performs baseband processing on the data to be transmitted and outputs the baseband signal to the RF circuit. The RF circuit then performs RF processing on the baseband signal and transmits it via the antenna in the form of electromagnetic waves. When data is sent to the device, the RF circuit receives the RF signal via the antenna, converts the RF signal into a baseband signal, and outputs the baseband signal to processor 1420. Processor 1420 converts the baseband signal into data and processes the data.

[0484] In another implementation, the RF circuit and antenna may be provided independently of the processor performing baseband processing. For example, in a distributed scenario, the RF circuit and antenna may be remotely located independent of the device.

[0485] The device shown in the embodiment of the present application may also have Figure 14 The embodiments of the present application do not limit the number of components and the like. The methods executed by the processor and transceiver shown above are only examples, and the specific steps executed by the processor and transceiver can refer to the methods described above.

[0486] In another possible implementation, Figure 13 In the illustrated device, the processing module 1301 may be one or more logic circuits, and the transceiver module 1302 may be an input / output interface, also known as a communication interface, an interface circuit, or an interface, etc. Alternatively, the transceiver module 1302 may be a transmitting module and a receiving module, where the transmitting module may be an output interface and the receiving module may be an input interface, and the transmitting module and the receiving module may be integrated into one module, such as an input / output interface.

[0487] Figure 15 This is another structural diagram of the communication device provided in the embodiment of the present application. Figure 15 As shown, Figure 15 The device shown includes a logic circuit 1501 and an interface 1502. That is, the processing module 1301 can be implemented using the logic circuit 1501, and the transceiver module 1302 can be implemented using the interface 1502. The logic circuit 1501 can be a chip, a processing circuit, an integrated circuit, or a system on chip (SoC) chip, etc., and the interface 1502 can be a communication interface, an input / output interface, a pin, or an interface circuit, etc. For example, Figure 15 The above device is taken as an example as a chip, and the chip includes a logic circuit 1501 and an interface 1502 .

[0488] In the embodiment of the present application, the logic circuit and the interface can also be coupled to each other. The embodiment of the present application does not limit the specific connection method of the logic circuit and the interface. For example, the logic circuit 1501 can be used to perform the following Figure 13 The functions or steps implemented by the processing module 1301 shown in FIG. 15 can be used to perform the following operations: Figure 13 The functions or steps implemented by the transceiver module 1302 are shown in FIG. Figure 13 Or the method embodiments shown above will not be described in detail here.

[0489] The device shown in the embodiment of the present application can implement the method provided in the embodiment of the present application in the form of hardware, or can implement the method provided in the embodiment of the present application in the form of software, etc., and the embodiment of the present application is not limited to this.

[0490] An embodiment of the present application further provides a communication system, which includes a perception initiator and a perception responder. The perception initiator and the perception responder can be used to execute the method in any of the aforementioned embodiments.

[0491] An embodiment of the present application further provides a communication system, which includes a ranging initiator and a ranging responder. The ranging initiator and the ranging responder can be used to execute the method in any of the aforementioned embodiments.

[0492] An embodiment of the present application further provides a communication system, which includes an SBP initiator and an SBP responder. The SBP initiator and the SBP responder can be used to execute the method in any of the aforementioned embodiments.

[0493] In addition, the present application also provides a computer program, which is used to implement the operations and / or processing performed by each device in the method provided by the present application.

[0494] The present application also provides a computer-readable storage medium having computer code stored therein. When the computer code is run on a computer, the computer executes the operations and / or processes performed by each device in the method provided by the present application.

[0495] The present application also provides a computer program product, which includes computer code or computer program. When the computer code or computer program is run on a computer, the operations and / or processes performed by the method provided in the present application are executed.

[0496] In the several embodiments provided in this application, it should be understood that the disclosed systems, devices and methods can be implemented in other ways. For example, the device embodiments described above are only schematic. For example, the division of the modules is only a logical function division. In actual implementation, there may be other division methods, such as multiple modules or components can be combined or integrated into another system, or some features can be ignored or not executed. In addition, the mutual coupling or direct coupling or communication connection shown or discussed can be an indirect coupling or communication connection through some interfaces, devices or modules, or it can be an electrical, mechanical or other form of connection.

[0497] The modules described as separate components may or may not be physically separate, and the components shown as modules may or may not be physical modules, that is, they may be located in one place or distributed across multiple network modules. Some or all of the modules may be selected according to actual needs to achieve the technical effects of the solutions provided in the embodiments of the present application.

[0498] In addition, the functional modules in the various embodiments of the present application may be integrated into a processing module, or each module may exist physically separately, or two or more modules may be integrated into a single module. The above-mentioned integrated modules may be implemented in the form of hardware or software functional modules.

[0499] If the integrated module is implemented in the form of a software functional module and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application is essentially or the part that contributes to the prior art, or all or part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a readable storage medium, including a number of instructions for enabling a computer device (which can be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the method described in each embodiment of the present application. The aforementioned readable storage medium includes: U disk, mobile hard disk, read-only memory (ROM), random access memory (RAM), magnetic disk or optical disk, and other media that can store program code.

[0500] The above description is merely a specific embodiment of the present application, but the scope of protection of the present application is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in this application should be included in the scope of protection of this application. Therefore, the scope of protection of this application should be based on the scope of protection of the claims.

Claims

1. A communication method, characterized in that: The method comprises: The initiating end sends a measurement request frame, where the measurement request frame is used to initiate a measurement session, and the measurement request frame includes a hybrid detection mode field, where the hybrid detection mode field is used to indicate a measurement mode of the measurement session; A measurement response frame corresponding to the measurement request frame is received.

2. A communication method, characterized in that: The method comprises: The responding end receives a measurement request frame, where the measurement request frame is used to initiate a measurement session, and the measurement request frame includes a hybrid detection mode field, where the hybrid detection mode field is used to indicate a measurement mode of the measurement session; A measurement response frame is sent in response to the measurement request frame.

3. The method according to claim 1 or 2, characterized in that When the value of the hybrid detection mode field is the first value, the first value indicates that the physical layer convergence process protocol data unit PPDU in the polling phase of the measurement session, the NDPA frame in the empty data packet declaration NDPA detection phase of the measurement session, and the PPDU in the reporting phase of the measurement session are transmitted in the first frequency band.

4. The method according to any one of claims 1 to 3, characterized in that When the value of the hybrid detection mode field is the second value, the second value indicates that the PPDU in the polling phase of the measurement session and the NDPA frame in the NDPA detection phase of the measurement session are transmitted in the first frequency band.

5. The method according to any one of claims 1 to 4, characterized in that When the value of the hybrid probing mode field is a third value, the third value indicates that the PPDU in the polling phase of the measurement session is transmitted in the first frequency band.

6. The method according to any one of claims 1 to 5, characterized in that The measurement request frame further includes one or more link identification fields, each link identification field being used to indicate a link corresponding to the measurement session.

7. The method according to any one of claims 1 to 6, characterized in that The measurement request frame also includes a transmit beam list or a receive beam list, wherein the transmit beam list is used to indicate the index of the transmit beam used by the responding end or the initiating end in the measurement session, and the receive beam list is used to indicate the index of the receive beam used by the responding end or the initiating end in the measurement session.

8. The method according to claim 1, characterized in that The method further comprises: The initiator sends a perception empty data packet declaration NDPA frame, and the perception NDPA frame includes a beam indication field, and the beam indication field is used to indicate the index of the transmitting beam, or the index of the receiving beam. The transmitting beam is a beam used by the initiator to send the perception PPDU, and the receiving beam is a beam used by the initiator to receive the perception PPDU, and the perception PPDU is a PPDU used for perception.

9. The method according to claim 2, characterized in that The method further comprises: The responding end receives a perception null data packet declaration NDPA frame, where the perception NDPA frame includes a beam indication field, where the beam indication field is used to indicate the index of a transmitting beam or the index of a receiving beam. The transmitting beam is a beam used by the initiating end to send a perception PPDU, and the receiving beam is a beam used by the initiating end to receive a perception PPDU. The perception PPDU is a PPDU used for perception.

10. The method according to claim 8 or 9, characterized in that The perception NDPA frame further includes a switching field, where the switching field is used to indicate whether the initiator performs frequency band switching after sending the perception NDPA frame.

11. The method according to any one of claims 8 to 10, characterized in that: The perception NDPA frame further includes a count field, where the count field is used to indicate the number of perception NDPA frames to be sent by the initiator.

12. The method according to claim 1, characterized in that The method further comprises: The initiator sends a detection trigger frame, which includes a beam indication field, and the beam indication field is used to send the index of the beam. The transmitted beam is the beam used by the responder to send the perception PPDU, and the perception PPDU is a PPDU used for perception.

13. The method according to claim 2, characterized in that The method further comprises: The responding end receives a detection trigger frame, which includes a beam indication field, where the beam indication field is used to indicate the index of a transmitting beam, where the transmitting beam is a beam used by the responding end to send a perception PPDU, and where the perception PPDU is a PPDU used for perception.

14. A communication device, characterized in that: The method comprises a module for executing the method according to any one of claims 1 to 13.

15. A communication device, characterized in that: The method comprises a processor configured to execute the method according to any one of claims 1 to 13.

16. The device according to claim 15, characterized in that The communication device further includes a transceiver, and the transceiver is used to send or receive information.

17. A communication device, characterized in that: comprising a logic circuit and an interface, wherein the logic circuit and the interface are coupled; The interface is used to input and / or output information, and the logic circuit is used to execute the method according to any one of claims 1 to 13.

18. A computer-readable storage medium, characterized in that The computer-readable storage medium is used to store a computer program. When the computer program is executed, the method according to any one of claims 1 to 13 is executed.

19. A computer program product, characterized in that When the computer program product is executed, the method according to any one of claims 1 to 13 is performed.

20. A communication system, characterized in that: The method comprises an initiating end and a responding end, wherein the initiating end is used to execute the method according to any one of claims 1, 3-8, 10-12, and the responding end is used to execute the method according to any one of claims 2-7, 9-11, and 13.

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