WO2023216888A1

WO2023216888A1 - Sensing method and communication apparatus

Info

Publication number: WO2023216888A1
Application number: PCT/CN2023/090941
Authority: WO
Inventors: 娜仁格日勒; 韩霄; 杜瑞; 狐梦实; 郭宇宸; 李云波; 李伊青
Original assignee: 华为技术有限公司
Priority date: 2022-05-10
Filing date: 2023-04-26
Publication date: 2023-11-16
Also published as: CN117098238A

Abstract

Provided in the present application are a sensing method and a communication apparatus. The present application is applied to wireless local area network systems which support 802.11 series protocols, for example, IEEE 802.11ax or Wi-Fi 6, 802.11be, Wi-Fi 7 or EHT, and 802.11bf or WLAN sensing, for another example, next generation of 802.11be, and Wi-Fi 8, and can also be applied to an ultra-bandwidth (UWB)-based wireless personal local area network system. The method comprises: a first device receiving first information from a second device, wherein the first information is used for indicating that the second device can provide information of a first sending sector corresponding to a first frame, and the first frame is a beam refinement protocol (BRP) frame and/or a data frame; and the first device measuring the first frame from the second device, so as to generate a measurement result, wherein the information of the first sending sector and the measurement result are used for generating a sensing result. Therefore, flexible sensing can be realized.

Description

A sensing method and communication device

This application claims priority to the Chinese patent application filed with the State Intellectual Property Office of China on May 10, 2022, with application number 202210504486.7 and the application title "A sensing method and communication device", the entire content of which is incorporated herein by reference. Applying.

Technical field

The present application relates to the field of communication technology, and more specifically, to a sensing method and a communication device.

Background technique

With the development of communication technology, in the communication architecture of wireless local area network (WLAN), the ability of the station (station, STA) or access point (access point, AP) to send electromagnetic waves can be used for sensing. For example, Wi-Fi radar can be used to detect the presence of objects in the transmission path environment, movement trajectories, biometrics and other sensing technologies. However, in the current communication architecture, how to use STA or AP to realize sensing is still in the exploratory stage.

Contents of the invention

This application provides a method and device for realizing sensing, which can realize flexible sensing.

A first aspect provides a method for realizing sensing. The method can be executed by a first device or a chip in the first device. The method includes: the first device receives first information from a second device, and the first information is To indicate that the second device can provide information about the first sending sector corresponding to the first frame, the first frame is a beam refinement protocol BRP frame and/or a data frame; the first device measures the first frame from the second device to A measurement result is generated, and the information of the first transmitting sector and the measurement result are used to generate a sensing result.

In other words, the first information is used to indicate that the first frame and/or the second device can be used for sensing.

In other words, the first information is used to indicate that the first frame and/or the second device supports passive sensing.

Passive sensing may mean that: (the device, frame or frame transmission) is not specially designed (or specifically designed) for sensing, and other devices can use the relevant information (of the device, frame or frame transmission) for sensing. The relevant information may be the transmitting sector information of the present application, that is, the second device can provide the transmitting sector information corresponding to the first frame.

In other words, passive sensing: transmissions that are not specifically designed for sensing are used by other devices for sensing.

In addition, the first information may also be used to indicate that the second device can accurately send the first frame.

In other words, the first information indicates that the second device can provide the information of the first sending sector by indicating that the second device can accurately send the first frame.

The first information may also be used to indicate the accuracy of the time intervals between multiple first frames.

In other words, the first information accurately indicates that the second device can provide the time interval between multiple first frames. First send sector information.

Therefore, in this application, the transmission sector information corresponding to the BRP frames and data frames that exist in both uplink and downlink in multiple periods can be used for sensing, which can improve the flexibility of sensing.

In conjunction with the first aspect, in some implementations of the first aspect, the first information is also used to indicate that the second device can provide location information of the second device.

Therefore, in this application, the first information can indicate that the second device can provide the information of the first sending sector corresponding to the first frame and the location information of the second device, and then the first device can request the first sending sector. Information and location information are used for perception.

In conjunction with the first aspect, in some implementations of the first aspect, the method further includes: the first device sends a first request frame; the first device receives a first response frame in response to the first request frame, where the first response frame includes The second information indicates the information of the first sending sector.

Therefore, in this application, the first device can obtain the sending sector information of the second device through the interaction of the request frame and the response frame between the first device and the second device, and measuring the interaction of the first frame and the sector information can It occurs at different time periods, making the perception more flexible and applicable to more application scenarios.

In conjunction with the first aspect, in some implementations of the first aspect, the first response frame further includes location information of the second device.

With reference to the first aspect, in some implementations of the first aspect, the method further includes: the first device generating a correspondence between the information of the second transmitting sector and the identifier of the second transmitting sector, and the second transmitting sector is the first Transmitting sectors of the second device, the second transmitting sector includes the first transmitting sector; the first device determines the information of the first transmitting sector based on the second information and the corresponding relationship, and the second information is used to indicate the information of the first transmitting sector. logo.

Therefore, in this application, the first device can store the information of the transmitting sector of the second device, and create a search list of the information and identification of the transmitting sector, so that the first device can request the identification of the first transmitting sector through Searching the list to obtain the information of the first sending sector can save transmission overhead.

With reference to the first aspect, in some implementations of the first aspect, the method further includes: the first device sends a second request frame, the second request frame is used to request information of the second sending sector; the first device receives a response to Information about the second sending sector of the second request frame.

Optionally, the first device stores information of the second sending sector.

Therefore, in this application, the first device can request to obtain the information of the second transmission sector of the second device, so that the information of the transmission sector can be transmitted only once during the sensing process, which can reduce the overhead of air interface signaling.

With reference to the first aspect, in some implementations of the first aspect, the method further includes: the first device obtains a transmission resource for sending the first request frame, the transmission resource being a resource allocated to the first device, or , the transmission resource is not a resource allocated to the first device.

Therefore, in this application, the first device can independently search for transmission opportunities to send the first request frame. For example, the first device can send the first request frame through a mechanism such as preemption, thereby achieving flexible sensing.

In connection with the first aspect, in some implementations of the first aspect, the method further includes: if the first device does not send the first request frame after a first time after measuring the first frame, discard the measurement result; if the first device After measuring the first frame, the device does not receive the first response frame after the second time, and then discards the measurement result; if the first device does not receive the first response frame after the third time after sending the first request frame, and the first If the device has not measured the first frame, it resends the first request frame.

Therefore, in this application, the first device can discard the measurement results when the measurement results are out of date or invalid, or resend the first request frame when the measurement results are not invalid to achieve reliable sensing.

Combined with the first aspect, in some implementations of the first aspect, when the first frame is a BRP frame, the first information is carried in at least one of the following fields: BRP request field, EDMG BRP field, EDMG BRP Request unit, DMG beam refinement unit or capability unit; in the case where the first frame is a data frame, the first information is carried in at least one of the following fields: medium access control MAC header, physical layer PHY header or capability unit.

Therefore, in this application, the first information can be carried in multiple ways to improve the flexibility of perception.

Combined with the first aspect, in some implementations of the first aspect, the second information is generated based on at least one of the following information: the conversation token corresponding to the first frame, the transmission timestamp corresponding to the first frame, the The packet number corresponding to one frame, the segment number corresponding to the first frame, the sequence number corresponding to the first frame, the communication identifier corresponding to the first frame, and the frame body corresponding to the first frame.

Therefore, in this application, the identification of the transmitting sector can be indicated in a variety of ways, such as by identifying the BRP frame and/or data frame carrying the transmitting sector. Multiple types of frames and time periods can be supported, and flexible sensing can be achieved. .

With reference to the first aspect, in some implementations of the first aspect, the first device is an access node and the second device is a site; or the first device is a site and the second device is an access node; or the first device is a site. The device and the second device are different sites; or the first device and the second device are different access points.

A second aspect provides a method for realizing sensing. The method can be executed by a second device or a chip in the second device. The method includes: the second device sends first information to the first device, and the first information is used to Indicate that the second device can provide information about the first sending sector corresponding to the first frame, and the first frame is a beam refinement protocol BRP frame and/or a data frame; the second device sends the first frame to the first device, and the first frame Used to generate measurement results, the information and measurement results of the first transmitting sector are used to generate sensing results.

In conjunction with the second aspect, in some implementations of the second aspect, the first information is also used to indicate that the second device can provide location information of the second device.

With reference to the second aspect, in some implementations of the second aspect, the method further includes: the second device receives the first request frame; the second device sends a first response frame in response to the first request frame, and the first response frame includes the first request frame. Two information, the second information indicates the information of the first sending sector.

In conjunction with the second aspect, in some implementations of the second aspect, the first response frame further includes location information of the second device.

Combined with the second aspect, in some implementations of the second aspect, the second information indicates the identity of the first transmitting sector.

With reference to the second aspect, in some implementations of the second aspect, the method further includes: the second device receives a second request frame, the second request frame is used to request information of the second sending sector; the second device responds to the second request frame. The second request frame sends information of the second sending sector, the second sending sector is the sending sector of the second device, and the second sending sector includes the first sending sector.

In conjunction with the second aspect, in some implementations of the second aspect, the method further includes: the second device obtains a transmission resource used to send the first response frame, and the transmission resource is a resource allocated to the second device, or, The transmission resource is not a resource allocated to the second device.

Combined with the second aspect, in some implementations of the second aspect, when the first frame is a BRP frame, the first information is carried in at least one of the following fields: BRP request field, EDMG BRP field, EDMG BRP request unit, DMG beam refinement unit or capability unit; when the first frame is a data frame, the first information is carried in at least one of the following fields: a medium access control MAC header, a physical layer PHY header, or a capability unit.

Combined with the second aspect, in some implementations of the second aspect, the second information is generated based on at least one of the following information: the conversation token corresponding to the first frame, the transmission timestamp corresponding to the first frame, the The packet number corresponding to one frame, the segment number corresponding to the first frame, the sequence number corresponding to the first frame, the communication identifier corresponding to the first frame, and the frame body corresponding to the first frame.

Combined with the second aspect, in some implementations of the second aspect, the first device is an access node and the second device is a site; or the first device is a site and the second device is an access node; or the first device is a site. The device and the second device are different sites; or the first device and the second device are different access points.

In a third aspect, a communication device is provided. The communication device includes a transceiver unit and a processing unit, wherein the transceiver unit is used to receive first information from a second device, and the first information is used to indicate that the second device can provide the first The information of the first sending sector corresponding to the frame, the first frame is the beam refinement protocol BRP frame and/or the data frame; the processing unit is used to measure the first frame from the second device to generate the measurement result, the first sending sector Zone information and measurements are used to generate perception results.

In conjunction with the third aspect, in some implementations of the third aspect, the first information is also used to indicate that the second device can provide location information of the second device.

Combined with the third aspect, in some implementations of the third aspect, the transceiver unit is further configured to send a first request frame; the transceiver unit is further configured to receive a first response frame in response to the first request frame, where the first response frame includes The second information indicates the information of the first sending sector.

Combined with the third aspect, in some implementations of the third aspect, the first response frame further includes location information of the second device.

Combined with the third aspect, in some implementations of the third aspect, the processing unit is also configured to generate a correspondence between the information of the second transmitting sector and the identifier of the second transmitting sector, and the second transmitting sector is the second device. The second transmission sector includes the first transmission sector; the processing unit is also used to determine the information of the first transmission sector according to the second information and the corresponding relationship, and the second information is used to indicate the information of the first transmission sector. logo.

Combined with the third aspect, in some implementations of the third aspect, the transceiver unit is also used to send a second request frame, and the second request frame is used to request information of the second sending sector; the transceiver unit is also used to receive a response to Information about the second sending sector of the second request frame.

With reference to the third aspect, in some implementations of the third aspect, the processing unit is further configured to obtain a transmission resource for sending the first request frame, the transmission resource being a resource allocated to the first device, or the The transmission resources are not resources allocated to the first device.

Combined with the third aspect, in some implementations of the third aspect, after the first device measures the first frame, the time corresponding to the transmission resource is greater than or equal to the first threshold from the time when the first device measures the first frame, The processing unit is also used to discard the measurement results.

Combined with the third aspect, in some implementations of the third aspect, if the processing unit does not send the first request frame within the first time after measuring the first frame, the processing unit is also configured to discard the measurement result; if After the processing unit measures the first frame, if the transceiver unit does not receive the first response frame after a second period of time, the processing unit is also configured to discard the measurement results. If after the transceiver unit sends the first request frame, the transceiver unit does not receive the first response frame after the third time, and the processing unit has not measured the first frame, the transceiver unit is also used to resend the first request frame.

Combined with the third aspect, in some implementations of the third aspect, when the first frame is a BRP frame, the first information is carried in at least one of the following fields: BRP request field, EDMG BRP field, EDMG BRP Request unit, DMG beam refinement unit or capability unit; in the case where the first frame is a data frame, the first information is carried in at least one of the following fields: medium access control MAC header, physical layer PHY header or capability unit.

Combined with the third aspect, in some implementations of the third aspect, the second information is generated based on at least one of the following information: the conversation token corresponding to the first frame, the transmission timestamp corresponding to the first frame, the The packet number corresponding to one frame, the segment number corresponding to the first frame, the sequence number corresponding to the first frame, the communication identifier corresponding to the first frame, and the frame body corresponding to the first frame.

Combined with the third aspect, in some implementations of the third aspect, the first device is an access node and the second device is a site; or the first device is a site and the second device is an access node; or the first device is a site. The device and the second device are different sites; or the first device and the second device are different access points.

In a fourth aspect, a communication device is provided. The communication device includes a transceiver unit and a processing unit, wherein the transceiver unit is used to send first information, and the first information is used to indicate that the second device can provide the first transmission corresponding to the first frame. Sector information, the first frame is a beam refinement protocol BRP frame and/or data frame; the transceiver unit is used to send the first frame to the first device, the first frame is used to generate measurement results, and the first sending sector information and measurements are used to generate perceptual results.

In conjunction with the fourth aspect, in some implementations of the fourth aspect, the first information is also used to indicate that the second device can provide location information of the second device.

With reference to the fourth aspect, in some implementations of the fourth aspect, the transceiver unit is further configured to receive the first request frame; the transceiver unit is further configured to send a first response frame in response to the first request frame, and the first response frame includes the first request frame. Two information, the second information indicates the information of the first sending sector.

In conjunction with the fourth aspect, in some implementations of the fourth aspect, the first response frame further includes location information of the second device.

Combined with the fourth aspect, in some implementations of the fourth aspect, the second information is used to indicate the identity of the first transmitting sector.

Combined with the fourth aspect, in some implementations of the fourth aspect, the transceiving unit is further configured to receive a second request frame, and the second request frame is used to request information of the second sending sector; the transceiving unit is further configured to respond to the first request frame. The second request frame sends information of the second sending sector, the second sending sector is the sending sector of the second device, and the second sending sector includes the first sending sector.

In conjunction with the fourth aspect, in some implementations of the fourth aspect, the processing unit is further configured to obtain a transmission resource used for sending the first response frame, where the transmission resource is a resource allocated to the second device, or the transmission resource The resource is not a resource allocated to the second device.

Combined with the fourth aspect, in some implementations of the fourth aspect, when the first frame is a BRP frame, the first information is carried in at least one of the following fields: BRP request field, EDMG BRP field, EDMG BRP Request unit, DMG beam refinement unit or capability unit; in the case where the first frame is a data frame, the first information is carried in at least one of the following fields: medium access control MAC header, physical layer PHY header or capability unit.

Combined with the fourth aspect, in some implementations of the fourth aspect, the second information is based on at least one of the following information Item generated: dialogue token corresponding to the first frame, transmission timestamp corresponding to the first frame, packet number corresponding to the first frame, segment number corresponding to the first frame, sequence number corresponding to the first frame, first frame The corresponding communication identifier and the frame body corresponding to the first frame.

Combined with the fourth aspect, in some implementations of the fourth aspect, the first device is an access node and the second device is a site; or the first device is a site and the second device is an access node; or the first device is a site. The device and the second device are different sites; or the first device and the second device are different access points.

A fifth aspect provides a communication device, which is used to perform the method provided in the first aspect. Specifically, the communication device may include units and/or modules for executing the method provided by the first aspect or any one of the above implementations of the first aspect, such as a processing unit and/or a communication unit.

In one implementation, the communication device is a first device. When the communication device is the first device, the communication unit may be a transceiver, or an input/output interface; the processing unit may be at least one processor. Alternatively, the transceiver may be a transceiver circuit. Alternatively, the input/output interface may be an input/output circuit.

In another implementation, the communication device is a chip, a chip system or a circuit in the first device. When the communication device is a chip, chip system or circuit in the first device, the communication unit may be an input/output interface, interface circuit, output circuit, input circuit, pin or related circuit on the chip, chip system or circuit etc.; the processing unit may be at least one processor, processing circuit or logic circuit, etc.

A sixth aspect provides a communication device, which is used to perform the method provided in the second aspect. Specifically, the communication device may include units and/or modules, such as a processing unit and/or a communication unit, for executing the method provided by the second aspect or any one of the above implementations of the second aspect.

In one implementation, the communication device is a second device. When the communication device is the second device, the communication unit may be a transceiver, or an input/output interface; the processing unit may be at least one processor. Alternatively, the transceiver may be a transceiver circuit. Alternatively, the input/output interface may be an input/output circuit.

In another implementation, the communication device is a chip, chip system or circuit in the second device. When the communication device is a chip, chip system or circuit in a terminal device, the communication unit may be an input/output interface, interface circuit, output circuit, input circuit, pin or related circuit on the chip, chip system or circuit, etc. ; The processing unit may be at least one processor, processing circuit or logic circuit, etc.

In a seventh aspect, a communication device is provided, including a processor and, optionally, a memory. The processor is used to control the transceiver to send and receive signals. The memory is used to store a computer program. The processor is used to retrieve the signal from the memory. The computer program is called and run, so that the sending device executes the method in the above-mentioned first aspect or any possible implementation manner of the first aspect.

Optionally, there are one or more processors and one or more memories.

Alternatively, the memory may be integrated with the processor, or the memory may be provided separately from the processor.

Optionally, the first device further includes a transceiver, which may specifically be a transmitter (transmitter) and a receiver (receiver).

In an eighth aspect, a communication device is provided, including a processor and, optionally, a memory. The processor is used to control the transceiver to send and receive signals. The memory is used to store a computer program. The processor is used to call the memory from the memory. and run the computer program, so that the second device executes the method in the above second aspect or any possible implementation manner of the second aspect.

Optionally, there are one or more processors and one or more memories.

Optionally, the second device further includes a transceiver, which may specifically be a transmitter (transmitter) and a receiver (receiver).

A ninth aspect provides a communication system, including: a first device, configured to perform the method in the above first aspect or any possible implementation of the first aspect; and a second device, configured to perform the above second aspect. Or any method in the possible implementation of the second aspect.

In a tenth aspect, a computer-readable storage medium is provided. The computer-readable storage medium stores a computer program or code. When the computer program or code is run on a computer, it causes the computer to execute the above-mentioned first aspect or the first aspect. The method in any possible implementation manner, or the method in the second aspect or any possible implementation manner of the second aspect.

In an eleventh aspect, a chip is provided, including at least one processor, the at least one processor being coupled to a memory, the memory being used to store a computer program, the processor being used to call and run the computer program from the memory, so that the installation The sending device equipped with the chip system performs the method in the first aspect or any possible implementation of the first aspect, and causes the receiving device installed with the chip system to perform the second aspect or any possible implementation of the second aspect. method in.

The chip may include an input circuit or interface for sending information or data, and an output circuit or interface for receiving information or data.

In a twelfth aspect, a computer program product is provided. The computer program product includes: computer program code. When the computer program code is run by a sending device, it executes the above-mentioned first aspect or any of the possible implementation methods of the first aspect. The method; and, when the computer program code is run by the receiving device, execute the method of the second aspect or any possible implementation of the second aspect.

Description of the drawings

Figure 1 is a schematic diagram of an application scenario applicable to the embodiment of the present application;

Figure 2 is a schematic structural diagram of a BI;

Figure 3 is a schematic diagram of beam training;

Figure 4 is a schematic diagram of beam tracking;

Figure 5 is a schematic diagram of signal transmission between AP and STA;

Figure 6 is a schematic flow chart of a sensing method provided by an embodiment of the present application;

Figure 7 is a schematic diagram of the first information provided by the embodiment of the present application being carried in the BRP request field;

Figure 8 is a schematic diagram of the first information provided by the embodiment of the present application carried in the DMG beam refinement unit;

Figure 9 is a schematic diagram of the first information provided by the embodiment of the present application being carried in the EDMG BRP domain;

Figure 10 is a schematic diagram of the first information provided by the embodiment of the present application carried in the EDMG BRP request unit;

Figure 11 is a schematic diagram of the first information carried in the MAC header of the data frame provided by the embodiment of the present application;

Figure 12 is a schematic diagram of the first information carried in the PHY header of the data frame provided by the embodiment of the present application;

Figure 13 is another schematic diagram of another example in which the first information is carried in the PHY header of the data frame provided by the embodiment of the present application;

Figure 14 is a schematic diagram of a capability unit including first information provided by an embodiment of the present application;

Figure 15 is a schematic diagram of an information unit including quantity information of second transmission sectors provided by an embodiment of the present application;

Figure 16 is a schematic diagram of an information unit including description information of the second transmission sector provided by an embodiment of the present application;

Figure 17 is a schematic diagram of an information unit based on second information generated by a conversation password or PN provided by an embodiment of the present application;

Figure 18 is a schematic diagram of an information unit of second information generated based on a transmission timestamp provided by an embodiment of the present application;

Figure 19 is a schematic diagram of an information unit in which a first response frame includes description information of a first transmission sector provided by an embodiment of the present application;

Figure 20 is a schematic diagram of another first response frame including description information of the first sending sector provided by an embodiment of the present application;

Figures 21 to 23 are schematic diagrams of possible communication devices provided by embodiments of the present application.

Detailed ways

The technical solutions in this application will be described below with reference to the accompanying drawings.

The technical solutions provided by the embodiments of this application can be applied to wireless local area network (WLAN) scenarios, for example, can be applied to IEEE 802.11 system standards, such as 802.11a/b/g standards, 802.11bf standards, 802.11ad standards, 802.11ay standard, or next-generation standards. 802.11bf includes two major categories of standards: low frequency (sub7GHz) and high frequency (60GHz). The implementation of sub7GHz mainly relies on standards such as 802.11ac, 802.11ax, 802.11be and the next generation. The implementation of 60GHz mainly relies on standards such as 802.11ad, 802.11ay and the next generation. Among them, 802.11ad can also be called directional multi-gigabit. -gigabit (DMG) standard, 802.11ay can also be called the enhanced directional multi-gigabit (EDMG) standard. The technical solutions of the embodiments of this application mainly focus on the implementation of 802.11bf at high frequencies (802.11ad, 802.11ay), but the relevant technical principles can be extended to low frequencies (802.11ac, 802.11ax, 802.11be).

Although the embodiments of the present application are mainly explained by taking the deployment of WLAN networks, especially networks applying the IEEE 802.11 system standard, as an example, those skilled in the art can easily understand that all aspects involved in the embodiments of the present application can be extended to use various standards or protocols. Other networks, such as Bluetooth, high performance radio local area network (HIPERLAN) and wide area network (WAN), personal area network (PAN) or other currently known or networks developed in the future. Therefore, regardless of the coverage and wireless access protocol used, the various aspects provided by the embodiments of the present application can be applied to any suitable wireless network.

The technical solutions of the embodiments of the present application can also be applied to various communication systems, such as: WLAN communication system, wireless fidelity (Wi-Fi) system, global system for mobile communication (GSM) system, code Code division multiple access (CDMA) system, wideband code division multiple access (WCDMA) system, general packet radio service (GPRS), long term evolution (LTE) ) system, LTE frequency division duplex (FDD) system, LTE time division duplex (TDD), universal mobile telecommunication system (UMTS), global interconnection microwave access (worldwide interoperability for microwave access, WiMAX) communication system, fifth generation (5th generation, 5G) system or new radio (NR), future sixth generation (6th generation, 6G) system, Internet of things (IoT) Network or wireless LAN systems such as vehicle to x (V2X), etc.

The above-mentioned communication systems applicable to this application are only examples. The communication systems applicable to this application are not limited to these and are summarized here. An explanation will not be repeated below.

The terminal in the embodiment of this application may refer to user equipment (UE), access terminal, user unit, user station, mobile station, mobile station, remote station, remote terminal, mobile device, user terminal, terminal, wireless communication Device, user agent, or user device. The terminal may also be a cellular phone, a cordless phone, a session initiation protocol (SIP) phone, a wireless local loop (WLL) station, a personal digital assistant (PDA), or a device with wireless communication capabilities Handheld devices, computing devices or other processing devices connected to wireless modems, vehicle-mounted devices, wearable devices, terminal devices in 5G networks, terminal devices in future 6G networks or public land mobile networks (PLMN) ), the embodiments of the present application are not limited to this.

The network device in the embodiment of this application may be a device used to communicate with a terminal. The network device may be a global system of mobile communication (GSM) system or a code division multiple access (code division multiple access, CDMA) system. The base station (base transceiver station, BTS), or the base station (nodeB, NB) in the wideband code division multiple access (WCDMA) system, or the evolutionary base station (evolutional nodeB) in the LTE system , eNB or eNodeB), or it can be a wireless controller in a cloud radio access network (CRAN) scenario, or the network device can be a relay station, access point, vehicle-mounted device, wearable device, 5G network The network equipment in the network as well as the network equipment in the future 6G network or the network equipment in the PLMN network are not limited by the embodiments of this application.

Figure 1 is a schematic diagram of an application scenario provided by this application. In Figure 1, the AP (AP110 shown in Figure 1) can be a communication server, router, switch, or any of the above network devices, STA (STA121, STA122 shown in Figure 1) It may be a mobile phone, a computer, or any of the above-mentioned terminals, which are not limited in the embodiments of this application. One or more STAs in the site device may communicate with one or more APs in the access point device after establishing an association relationship. For example, AP110 can communicate with STA 121 after establishing an association relationship, and AP110 can communicate with STA 122 after establishing an association relationship.

It should be understood that communication system 100 in Figure 1 is only an example. The technical solutions of the embodiments of this application are not only applicable to communication between an AP and one or more STAs, but also to mutual communication between APs, and also to mutual communication between STAs.

Among them, the access point can be an access point for a terminal (such as a mobile phone) to enter a wired (or wireless) network. It is mainly deployed inside homes, buildings and campuses. The typical coverage radius is tens of meters to hundreds of meters. Of course, it can also Deployed outdoors. The access point is equivalent to a bridge connecting the wired network and the wireless network. Its main function is to connect various wireless network clients together, and then connect the wireless network to the Ethernet. Specifically, the access point can be a terminal device (such as a mobile phone) or a network device (such as a router) with a Wi-Fi chip. Optionally, the access point may be a WLAN standard device that supports the 802.11 series standards. For example, the access point can support the 802.11bf standard, the 802.11ad standard, the 802.11ay standard, or one of the future Wi-Fi standards.

In this embodiment of the present application, the access point may also be an access point (AP) or a personal basic service set control point (PCP). Unless otherwise specified in the remainder of this application, the access point refers to either AP or PCP.

The site can be a wireless communication chip, wireless sensor or wireless communication terminal, etc., and can also be called a user. For example, the site can be a mobile phone that supports Wi-Fi communication function, a tablet computer that supports Wi-Fi communication function, a set-top box that supports Wi-Fi communication function, a smart TV that supports Wi-Fi communication function, or a smart TV that supports Wi-Fi communication function. smart wearable equipment, vehicle-mounted communication equipment that supports Wi-Fi communication functions and computers that support Wi-Fi communication functions, etc. Optionally, the site can be a WLAN standard device that supports the 802.11 series standards. For example, the site can also support the 802.11bf standard, the 802.11ad standard, the 802.11ay standard, or one of the future Wi-Fi standards.

For example, access points and sites can be devices used in the Internet of Vehicles, IoT nodes, sensors, etc. in the Internet of Things (IoT), smart cameras, smart remote controls, smart water meters and electricity meters in smart homes, and sensors in smart cities, etc.

The wireless communication system provided by the embodiment of the present application may be a WLAN or a cellular network. The method may be implemented by a communication device in the wireless communication system or a chip or processor in the communication device. The communication device may be a communication device that supports multiple links. Wireless communication devices that transmit in parallel are, for example, called multi-link devices or multi-band devices. Compared with devices that only support single-link transmission, multi-link devices have higher transmission efficiency and higher throughput. Multi-link devices include one or more affiliated STAs (affiliated STAs). An affiliated STA is a logical site and can work on one link. Among them, the affiliated site can be an AP or non-AP STA. A multi-link device whose site is an AP can be called a multi-link AP or multi-link AP device or AP multi-link device (AP multi-link device), and a multi-link device whose site is a non-AP STA It can be called multi-link STA or multi-link STA device or STA multi-link device.

First, in order to make the methods of the embodiments of the present application easier to understand, some concepts involved in the embodiments of the present application are explained below.

In the embodiment of this application, the beam may be a wide beam, a narrow beam, or other types of beams.

1. Beam.

The embodiment of the beam in the NR protocol can be a spatial domain filter, or a spatial filter or a spatial parameter. The beam used to send signals can be called a transmission beam (transmission beam, Tx beam), a spatial domain transmission filter (spatial domain transmission filter) or a spatial transmission parameter (spatial transmission parameter); the beam used to receive signals can be called a It is the receive beam (reception beam, Rx beam), which can be called the spatial domain receive filter (spatial domain receive filter) or the spatial receive parameter (spatial reception parameter).

The transmitting beam may refer to the distribution of signal strength in different directions in space after the signal is emitted by the antenna, and the receiving beam may refer to the signal strength distribution of the wireless signal received from the antenna in different directions in space.

In addition, the beam may be a wide beam, a narrow beam, or other types of beams. The beam forming technology may be beam forming technology or other technologies. Specifically, the beamforming technology can be digital beamforming technology, analog beamforming technology, or hybrid digital/analog beamforming technology.

Beams generally correspond to resources. For example, when performing beam measurement, the network device sends different resources through different beams, and the terminal feeds back the measured resource quality, and the network device can learn the quality of the corresponding beam.

During data transmission, beam information is also indicated by its corresponding resources. For example, the network device instructs the terminal to receive the beam information of the PDSCH (physical downlink shared channel) through the Transmission Configuration Indication (TCI) field in the downlink control information (DCI).

Optionally, multiple beams with the same or similar communication characteristics are regarded as one beam. A beam can be sent through one or more antenna ports and is used to transmit data channels, control channels, sounding signals, etc. One or more antenna ports forming a beam can also be viewed as a set of antenna ports.

In beam measurement, each beam of the network device corresponds to a resource, so the index or identifier of the resource can be used to indicate the beam corresponding to the resource.

In this application, the beam forming technology may be beam forming technology or other technical means. For example, the beamforming technology may specifically be a digital beamforming technology, an analog beamforming technology, or a hybrid digital/analog beamforming technology.

2. Sector

A sector can be a directional beam, a transmission sector (transmission sector, TX sector) can correspond to a directional transmission beam, and a reception sector can correspond to a directional reception beam (reception sector, RX sector).

3. Beacon interval (BI)

Figure 2 shows a schematic structural diagram of a BI. Referring to Figure 2, in 802.11ad/ay, the timeline can be divided into multiple BIs, each BI including beacon header indication (beacon header indication, BHI) and data transmission interval (data transmission interval, DTI). Among them, BHI includes beacon transmission interval (beacon transmission interval, BTI), association beamforming training (association beamforming training, A-BFT) and announcement transmission interval (announcement transmission interval, ATI). DTI includes several sub-intervals, which are divided into contention based access period (CBAP) (such as CBAP1 and CBAP2 shown in Figure 2) and service period (service period, SP) ( For example, SP1 and SP2 shown in Figure 2).

Among them, PCP/AP will send multiple beacon frames according to sector numbers in BTI for downlink sector scanning; A-BFT is used for STA association and uplink sector scanning; ATI is used for PCP/AP Poll the STA for cached data information and allocate resources in the data transmission interval (DTI) to the STA. The entire DTI will be divided into several sub-intervals. The sub-intervals will be divided into contention-based access period (CBAP) and service period (SP) according to the form of access. The latter is for scheduled transmission. No need to compete.

4. Beamforming

APs and STAs can find better communication links through beam training. Beam training can be mainly divided into two stages: sector-level sweep (SLS) and beam refinement protocol (BRP). In some application scenarios, beam training may also include an enhanced beam training phase, such as the beam refinement protocol transmit sector sweep (BRP TXSS) phase. The process of beam training is explained below with reference to Figure 3.

Figure 3 shows a schematic diagram of beam training. The initiating device (beamforming initiator) is the initiator of beam training, and the response device (beamforming responder) is the receiving end of beam training. The initiating device and the responding device may be different STAs, or they may be APs and STAs, or they may be different APs. Figure 3 illustrates using STA1 as the initiator of beam training and STA2 as the responder of beam training.

(a) of Figure 3 shows a schematic diagram of the SLS stage. The SLS stage is mainly in the BTI and A-BFT shown in Figure 2. This stage can complete the training of the sending sector. In the SLS phase, it can specifically include three sub-phases: initiator sector sweep (ISS), responder sector sweep (RSS) and sector sweep feedback (SSW-Feedback). Optionally, a sector sweep ACK (SSW-ACK) sub-phase may also be included, thereby establishing a basic link between STA1 and STA2. Specifically, in the ISS phase, STA1 performs the transmission sector of STA1 by sending multiple sector sweep (SSW) frames, multiple short sector scan (Short SSW) frames, or beacon frames containing the SSW field. District training. Similarly, STA2 trains the sending sector of STA2 by sending SSW frames or Short SSW frames in the RSS phase. SLS The results of the above-mentioned ISS and RSS phases are confirmed through the SSW-Feedback phase and SSW-ACK phase, and it is determined whether beam optimization is required. Furthermore, in the SLS phase, STA1 can obtain the optimal transmission sector sent to STA2, and STA2 can also obtain the optimal transmission sector sent to STA1. Through the above process, the training of the transmission sector between STA1 and STA2 can be completed.

The BRP stage is mainly in the DTI shown in Figure 2. This stage can complete the training of the receiving sector. In the BRP stage, it can specifically include four sub-stages: BRP setup (BRP setup), multiple sector identifier detection (MID), beam combining (BC) and beam refinement transactions (beam refinement transactions). In the BRP setting sub-phase (not shown in the figure), STA1 and STA2 can exchange capability information related to beam training, and configure parameters related to beam training. In the MID sub-stage, see (b) of Figure 3, STA1 can use a quasi-omnidirectional antenna to send BRP frames, and STA2 trains the directional receiving sector accordingly. Similarly, STA2 can use a quasi-omnidirectional antenna to send BRP frames, and STA1 trains the directional receiving sector accordingly. In the BC sub-phase, see (c) of Figure 3, STA1 can select some of the directional transmission sectors obtained in the SLS phase to pair the transmission sectors and reception sectors with STA2. For example, STA1 can use the beam pair with the highest signal to noise ratio (SNR) as the best beam pair for the best communication link, and then use the beam pair for data transmission. In the beam refinement negotiation sub-stage, see (d) of Figure 3, STA1 and STA2 can explore more transmit sector and receive sector pairs through this sub-stage. For example, STA1 and the receiving device send a BRP protocol data unit (PLCP protocol data unit, PPDU), and the end of the BRP frame in the BRP PPDU carries a TRN (training, TRN) field. For example, a directional multi-gigabit (DMG) device can support sending BRP-TX PPDU and BRP-RX PPDU, and an enhanced (enhanced DMG, EDMG) device can support sending BRP-TX PPDU, BRP-RX PPDU, and BRP- RX/TX PPDU. Among them, the end of the BRP frame in the BRP-TX PPDU carries the TRN-T field, and the BRP frame can be used to train the sending sector of STA1. The end of the BRP frame in the BRP-RX PPDU carries the TRN-R field, and the BRP frame can be used to train the receiving sector of STA2. The end of the BRP frame in the BRP-RX/TX PPDU carries the TRN-R/T field, and the BRP frame can be used to simultaneously train the transmit sector of STA1 and the receive sector of STA2. Through the above process, the training of the transmit sector and the receive sector between STA1 and STA2 can be completed.

The BRP TXSS phase can be mainly in the DTI phase shown in Figure 2, in which enhanced beam training can be performed on the EDMG equipment. The BRP TXSS phase can specifically include a setup phase, an initiator BRP TXSS phase and an acknowledgment phase. Optionally, it can also include a receive training phase of the responder. the responder), the responder BRP TXSS phase (responder BRP TXSS phase) and the initiator's receive training phase (receive training phase of the initiator). Referring to (e) of Figure 3, in the setup phase, the initiating end and the receiving end can interact with subsequent stages included in the BRP TXSS, as well as related configuration parameters for the BRP TXSS. In the initiator BRP TXSS phase, the initiator can perform enhanced beam training of the initiator's transmit sector by sending BRP-TX PPDU. For example, the initiator can initiate at least one round of training. In the same round of training, the initiator can use different DMG antennas to continuously send multiple BRP-TX PPDUs. During different rounds of training, the initiator sends multiple BRP -The process for TX PPDU can be the same. In addition, during the same round of training, the responder can use the same DMG antenna to receive multiple BRP-TX PPDUs from different DMG antennas of the initiator. During different rounds of training, the responder can use different DMG antennas to receive BRP-TX PPDUs. Furthermore, in the initiator BRP TXSS phase, the responder can obtain the best transmitting sector of the initiating end, and carry the relevant information of the best transmitting sector in the BRP frame and feed it back to the initiating end. optionally on the response side In the receive training phase of the responder, the initiator can use the best sending sector obtained previously to send BRP-RX PPDU to the responder, and the responder uses the antenna corresponding to the best sending sector to receive. Sector training.

Similar to the initiator BRP TXSS phase, in the responder BRP TXSS phase (not shown in the figure), the responder can initiate enhanced beam training of the responder's transmit sector by sending BRP-TX PPDU. For example, the responder can initiate at least one round of training. For the specific process, please refer to the above description of the BRP TXSS phase of the initiator. In addition, similar to the receiving training phase of the responder, the optional receiving training phase of the initiator (not shown in the figure) can train the receiving sector.

In the acknowledgment phase, the initiator can send a BRP frame carrying response information to mark the end of BRP TXSS training.

5. Beam tracking

Beam tracking can track the link quality of a communication link. For example, when the SNR of the communication link is lower than a specific threshold, the communication link may not be suitable for data transmission, and the initiating device can add a TRN field to the end of the data frame to perform beam tracking.

Referring to Figure 4, Figure 4 shows a schematic diagram of beam tracking. STA1 adds the TRN-T field at the end of the data frame. After receiving the data frame with the TRN-T field added, STA2 can add a BRP frame at the end of the acknowledgment (acknowledge, Ack) frame to feed back the beam tracking results to the initiating device. Then the initiating device can select the best beam pair to transmit the remaining data. The meaning of the TRN-T field can be found in the above description and will not be described again here.

6. Passive sensing

(Device, frame or frame transmission) is not specially designed (or specifically designed) for sensing, and other devices can use the relevant information (device, frame or frame transmission) for sensing.

Referring to Figure 5, Figure 5 shows a schematic diagram of signal transmission between the AP and the STA. Take the STA sending an uplink signal to the AP as an example. The uplink signal sent by the STA may reach the AP through link (1), or it may reach the AP after being reflected by an object through link (2). Since the signal is a kind of electromagnetic wave, by processing the parameters of the transmitting wave and the receiving wave of the signal, the environment on the transmission path can be perceived, that is, the position distribution, shape of the object or the trajectory of the object on the transmission path may be obtained. and other information. Therefore, in the present application, sensing may be achieved using devices, frames, or transmission of frames that are not specifically designed for sensing. Below, the sensing method proposed in this application is first described in detail.

Figure 6 shows a schematic flow chart of a sensing method provided by an embodiment of the present application.

S610: The second device sends the first information to the first device, and correspondingly, the first device receives the first information from the second device.

The first information is used to indicate that the second device can provide the information of the first sending sector corresponding to the first frame. The first frame is a BRP frame and/or a data frame. The information of the first sending sector is used to generate a perception. result.

In other words, the first information indicates that the first frame and/or the second device supports passive sensing.

Optionally, the first information is also used to indicate that the second device can improve the location information of the second device. Alternatively, the first information is also used to indicate that the second device can provide location information of the device that sent the first frame. The location information can be the physical location information of the device, such as location coordinates, relative location coordinates, etc., or it can be the identification of the device. The recognition can indirectly indicate the location information of the device, which is not specifically limited in this application.

The BRP frames and data frames may be BRP frames and data frames at any stage during the communication process between the first device and the second device. For example, the BRP frames may be BRP frames during the beam training process described above, such as BRP BRP-TX PPDU, BRP-RX PPDU, BRP-TX PPDU, BRP-RX PPDU in the BRP TXSS phase. Furthermore, this application can realize passive sensing by utilizing BRP frames and data frames that exist in various stages, as well as in the uplink and downlink directions.

The information of the first transmitting sector may be used to generate a sensing result. This may mean that the information of the first transmitting sector may be used to generate a sensing result for the surrounding environment on the transmission path of the first frame. The sensing result may include information on the transmission path of the first frame. Object location distribution information, object trajectory information, object feature information and other information that can be obtained by radar sensing.

Exemplarily, the information of the first transmitting sector may include at least one of the following information: direction information of the first transmitting sector, beam width of the first transmitting sector, sector gain of the first transmitting sector ( sector gain) or the identification information of the first sending sector. Wherein, the direction information of the first transmitting sector may include sector azimuth (sector azimuth) and/or sector elevation (sector elevation), and the beam width of the first transmitting sector may include azimuth beamwidth (azimuth beamwidth). ) and/or elevation beamwidth (elevation beamwidth), the identification information of the first transmitting sector may include a sector identification (sector id) and/or a DMG antenna identification (DMG ant id). Furthermore, the sensing result can be obtained by processing the information of the first transmitting sector.

Optionally, the second device is a station and the first device is an access point. Alternatively, the second device is an access point and the first device is a station. Or, the first device and the second device are different access points. Or, the first device and the second device are different sites.

Therefore, in the embodiment of the present application, the flexibility of sensing can be improved by using the transmission sector information corresponding to BRP frames and data frames that exist in both uplink and downlink in multiple periods for sensing.

It should be understood that when a BRP frame and a data frame both support passive sensing, the first information may indicate that both the BRP frame and the data frame can be used for sensing.

The second device may send the first information to the first device in multiple ways, or in a combination of multiple ways. In one implementation, when the first frame is a BRP frame and the second device supports DMG, the first information is carried in at least one of the following fields: BRP request field (BRP request field), EDMG BRP domain, EDMG BRP request unit, DMG beam refinement element or capabilities element; when the first frame is a BRP frame and the second device supports EDMG, the first information is carried in At least one of the following fields: BRP request domain, EDMG BRP domain, EDMG BRP request unit or capability unit; in the case where the first frame is a data frame, the first information is carried in at least one of the following fields: Media access Control (medium access control, MAC) header (MAC header), physical layer (physical layer, PHY) header (PHY header) or capability unit. The manner in which the second device sends the first information to the first device may be related to the type of the first frame or the type of the second device. For specific description, please refer to the following introduction in Figures 7 to 14.

S620: The second device sends the first frame to the first device, and correspondingly, the first device measures the first frame from the second device.

The first device may perform passive sensing for the first frame to generate a measurement result. The measurement results may include the direction, time, intensity and other results of receiving the first frame that can be used for perception.

The first frame may be the BRP frame and/or data frame in the beam training phase in FIG. 3 and the beam tracking phase in FIG. 4 above.

It can be understood that this application does not make any limitation on the order in which the second device sends the first information and the first frame to the first device. For example, the first information may be carried in the first frame, or the first information may use reserved bits in the BRP frame and/or the data frame, and step S610 and step S620 may be combined into one step. The second device may also send the first information to the first device before or after sending the first frame. For example, the first information can be carried in a defined capability unit and indicates the period or type corresponding to the first frame that supports passive sensing. Alternatively, the first information can also be carried in a BRP frame before or after the first frame. (or data frame), indicating that the first frame is a BRP frame (or data frame) after or before the BRP frame (or data frame) carrying the first information.

The first device learns that the first frame and/or the second device supports passive sensing based on the first information, then the first device may initiate a request frame for obtaining information on the transmitting sector used for sensing. It should be noted that when the first device and the second device are STA and AP respectively or AP and STA respectively, the first device can directly send a request frame to the second device. When the first device and the second device are different When the STA is connected, the first device may send a request frame to the second device through the corresponding AP. That is, the first device may send a request frame to the AP, and the AP requests the second device for sensing transmission sector information. The following is an exemplary description using the first device and the second device as the STA and the AP respectively.

In a possible implementation, the first device can obtain information about the second sending sector of the second device, where the second sending sector includes the first sending sector. Wherein, the second sending sector may be all sending sectors of the second device. The first device learns that the first frame and/or the second device supports passive sensing based on the first information, and can save the information of all sending sectors of the second device locally, and then when performing passive sensing for the first frame, the first device A device can find the information of the first sending sector corresponding to the first frame from the locally saved information of the second sending sector.

For example, the first device locally stores the information of the second sending sector, or if the first device receives the information of the second sending sector of the second device during the communication process, the first device can save it. For example, the first device learns that the first frame and/or the second device supports passive sensing based on the first information. Even if the first device has not triggered the sensing service, the first device can transmit the information of the second sending sector during the communication process. Save it locally for later use when performing sensing services.

In another possible implementation, the first device may request information about the second transmission sector from the second device. In this case, the method may further include steps S630 to S640. It should be noted that steps S630 to S640 can be performed before step S620 or after step S620, and the first device can send the second request in any period in which the second request frame can be sent (such as the ATI or DTI period). frame, the second device can also send the second response frame in any period in which the second response frame can be sent (such as the ATI or DTI period), which is not specifically limited in this application.

Optionally, S630, the first device sends a second request frame to the second device, and correspondingly, the second device receives the second request frame from the first device.

The second request frame is used to request information of the second sending sector. That is, the first device can actively send a second request frame (such as an information request frame) to the second device to request all sector information of the second device.

Optionally, S640, the second device sends the information of the second transmission sector to the first device in response to the second request frame, and correspondingly, the first device receives the second transmission sector information from the second device in response to the second request frame. 2. Send sector information.

The second device may send a second response frame (for example, an information response) frame to the first device in response to the second request frame, the second response frame carrying the information of the second sending sector.

For example, the information of the second transmission sector may include quantity information of the second transmission sector. For example, the second device may define a DMG sector information element including quantity information, and the quantity information may to represent all sectors (all sectors), or the quantity information can also represent a specific value of all or part of the number of transmission sectors (num TX sectors). The second device can learn the quantity information in the association or SLS phase. For example, the second device can obtain all sectors in the ISS through the sector sweep feedback field in the DMG beacon frame or SSW frame. field (total sectors in ISS field) to obtain the quantity information. In addition, the information of the second transmitting sector may also include description information of the second transmitting sector. For example, the description information of the second transmitting sector may be carried in a DMG sector descriptor element (DMG sector descriptor element). For specific exemplary information on the second transmitting sector, please refer to the description of Figures 14 to 15 below.

The first device may generate a corresponding relationship between the information of the second transmitting sector and the identifier of the second transmitting sector based on the information of the second transmitting sector.

For example, the corresponding relationship may be a sector look-up table of the second sending sector. After obtaining the information of the second transmitting sector, the first device can associate the identifier of the second transmitting sector with the description information of the second transmitting sector to form a sector lookup table.

Therefore, the first device can locally save the information of the sending sector of the second device, and then when the first device requests the second device for the information of the first sending sector corresponding to the first frame, the second device can only send the first The identifier of the transmitting sector is sent to the first device, and the first device obtains the information of the first transmitting sector through local query, thereby reducing transmission overhead.

After the first device learns that the first frame and/or the second device supports passive sensing based on the first information, the first device may request related information of the first sending sector corresponding to the first frame by sending a first request frame to the second device. However, if the communication system does not pre-configure the transmission resource for sending the first request frame to the first device, the method further includes step S650.

Optionally, S650, the first device obtains a transmission resource for sending the first request frame.

The transmission resource may be a resource allocated to the first device. For example, the transmission resource may be a resource allocated to the first device for sending other information, and the first device may use the resource to send the first request frame. Alternatively, the transmission resource may not be a resource allocated to the first device. For example, the first device may use idle resources to send the first request frame, or may preempt resources to send the first request frame.

For example, the transmission resource may be a resource in the DTI phase, and the first device may send the first request frame in the allocated time slot where the first frame is located, such as the TXOP of the SP allocation period or the CBAP allocation period, or the first request frame. A device may also use other time slots to send the first request frame.

In a possible implementation, if the first device does not send the first request frame for a first time after measuring the first frame, the measurement result may be discarded. The first time may be preset or may be instructed by the second device, which is not particularly limited in this application. If the first device does not determine the transmission resource to send the first request frame within the predetermined time, or the time corresponding to the transmission resource that the first device determines can send the first request frame exceeds the predetermined time, and the first device has generated the first frame measurement result, then the first device can discard the measurement result. In this case, the measurement result can be considered to be outdated, and the first device does not need to send the first request frame again.

Optionally, S660, the first device sends a first request frame to the second device, and correspondingly, the second device receives the first request frame from the first device.

The first device may send the first request frame to the second device before measuring the first frame, or may send the first request frame to the second device after measuring the first frame. When the first device sends the first request frame to the second device before measuring the first frame, the first request frame can also be used to indicate that the request is for information on the transmission sectors of frames in the subsequent period; when the first device When the first request frame is sent to the second device after measuring the first frame, the first request frame may also be used to indicate that the information requested is the transmission sector of the frame of the transmission sector in the previous period.

Optionally, the first request frame may also indicate the type of the first frame, so that the second device may know which type of frame sending sector information to return.

Optionally, S670, the second device determines the transmission resource for sending the first response frame.

The manner in which the second device determines the transmission resource for sending the first response frame may be similar to the manner in which the first device determines the transmission resource for sending the first request frame. For the sake of simplicity, details will not be described again here.

Optionally, S680, the second device sends a first response frame to the first device in response to the first request frame, and correspondingly, the first device receives a first response frame from the second device in response to the first request frame. .

The first response frame includes second information, and the second information is used to indicate information of the first transmitting sector.

If the method does not perform steps S630 to S640, that is, the first device does not have the information of the second transmission sector locally, then the first response frame may include the second information and the description information of the first transmission sector. For an exemplary schematic diagram of the first response frame including the description information of the first transmission sector, please refer to the description of FIG. 19 and FIG. 20 below.

If the method executes steps S630 to S640, that is, the first device locally stores the information of the second sending sector, then the first response frame may include the second information and the identification of the first sending sector, and then the first device may based on The second information and the identifier of the first sending sector are looked up in a table to obtain the description information of the first sending sector.

In a first possible implementation manner, when the first frame is a BRP frame, the second information may be generated based on the dialog token of the first frame. The first device may obtain the identity of the first sending sector through the session password of the first frame. It should be noted that the session password can be used to uniquely mark the BRP frame. The BRP frame is carried in the BRP PPDU. The BRP PPDU carries the TRN field. Each TRN subfield in the TRN field can represent a sector, so that the first device passes the session The password can be indexed to the BRP PPDU where the BRP frame is located, and then the corresponding first sending sector can be found through the TRN field in the BRP PPDU. For a specific example design of the second response message, please refer to the description of Figure 17 below.

In a second possible implementation manner, when the first frame is a BRP frame, a data frame, or other frames that support passive sensing, the second information may be generated based on the transmission timestamp (timestamp) corresponding to the first frame. The first device may obtain the identity of the first sending sector through the transmission timestamp corresponding to the first frame. The transmission timestamp may indicate which time period the first frame was sent, and then the first device can index to the corresponding PPDU based on the transmission timestamp in the second information, and then obtain the corresponding third PPDU through the TRN field in the PPDU. An identification of the transmitting sector. For a specific example design of the second response message, please refer to the description of Figure 18 below.

In the third possible implementation, when the first frame is a data frame and the data frame is encrypted and protected in CCMP, the second information may be based on the packet number (PN) corresponding to the first frame. Generated. The first device may obtain the identity of the first sending sector through the PN corresponding to the first frame. Among them, CCMP is a data encryption process that adds a CCMP header (CCMP header) between the MAC header (MAC header) and the data frame. The CCMP header includes the PN. For a specific example design of the second response message, please refer to the description of Figure 17 below.

In a fourth possible implementation manner, when the first frame is a data frame, the second information may also be generated based on at least one of the following information: fragment number, sequence number , SN) or traffic identifier (TID) generated. The above information can be carried in the MAC header of the data frame and can be used to mark the data frame for passive sensing. Furthermore, the first device can obtain the identity of the first sending sector through the above information.

In the fifth possible implementation, when the first frame is a BRP frame, data frame or other frame that supports passive sensing, When , the second information may be generated based on the frame body of the first frame. For example, a PPDU count identifier can be added to the frame body, and the PPDU count identifier can be used to mark the first frame. The first device can obtain the identifier of the first sending sector based on the second information generated by the PPDU count identifier.

It should be noted that in the above methods, when the first frame is a BRP frame in the BRP TXSS phase, the second information can only mark the BRP-TX PPDU in one round, such as using conversation password, PPDU count, Or by marking which round it is, the repeatability of each round of BRP-TX PPDU is used to reduce the bit consumption of the second information, that is, the consumption of resources is reduced.

It should be noted that the above-mentioned implementation methods for generating second information can be used alone or in combination, and this application is not particularly limited in this regard.

In addition, it should be noted that if the first device does not receive the first response frame after a second period of time after measuring the first frame, the measurement result may be discarded. That is to say, if the first device does not receive the first response frame after measuring the first frame, the measurement result can be considered to be out of date, and the first device can discard the measurement result. If the first device does not receive the first response frame after a third time has elapsed after sending the first request frame, and the first device has not measured the first frame, the first request frame may be re-sent. That is to say, if the first device fails to receive the first response frame before measurement, the first device can resend the first request frame. It should be understood that both the second time and the third time may be preset, or may be indicated by the second device, or may be obtained by setting a timing value. For example, they may be preset from measuring the first frame to The first timing value for sending the first request frame, and the second timing value from sending the first request frame to receiving the first response frame, then the first time in the embodiment of the present application may be the first timing value, and the second The time may be the sum of the first timing value and the second timing value, and the third time may be the second timing value.

The sensing method proposed in the embodiment of the present application is described above in conjunction with the flow chart. The first information, the first request frame, the first response frame (including the second information), the second request frame and the second request frame proposed in the embodiment of the present application are described below. The frame structure design of the response frame is explained.

In the above description of the method embodiments, the first information can be carried in the BRP frame. In order to facilitate understanding of the embodiments of the present application, Table 1 and Table 2 show two BRP frame action field formats (BRP frame action field format) definition.

Table 1:

Table 2:

The carrying method of the first information will be described below with reference to FIGS. 7 to 13 .

Figure 7 shows a schematic diagram of the first information carried in the BRP request field (BRP request field).

When the first frame is a BRP frame and the device sending the first frame is a DMG device or an EDMG device, the first information may be carried in the BRP request field. For example, referring to Figure 7, the BRP request field may include 13 information fields: 1. L-RX; 2. TX-TRN request (TX-TRN-REQ); 3. MID request (MID-REQ); 4 , BC request (BC-REQ); 5. MID grant (MID-Grant); 6. BC grant (BC-Grant); 7. Chan-FBCK-CAP; 8. Transmit sector identification (TX Sector ID); 9 , Other AID (Other_AID); 10. TX DMG Antenna ID (TX DMG Antenna ID); 11. EDMG-SHORT-BRP (11ay); 12. EDMG-SHORT-FBCK (11ay); 13. DMG sensing; 14. Chapter 1. Information; 15. Reserved fields.

The specific meanings of information fields 1 to 12 can be found in the descriptions of IEEE 802.11ad and IEEE 802.11ay. The description of the first information of information field 13 can be found in the description of step S610 in Figure 6, which will not be described again here.

It can be understood that this application does not make any restrictions on the number and position of bits used by the first information. The first information can use any one or more reserved bits in the BRP request field. Figure 7 shows the first information occupying the BRP request. Take the 30th bit in the field as an example.

Figure 8 shows a schematic diagram of the first information carried in the DMG beam refinement element (DMG beam refinement element).

When the first frame is a BRP frame and the device sending the first frame is a DMG device, the first information may be carried in the DMG beam refinement unit. For example, referring to Figure 8, the DMG beam refinement unit may include 27 information fields: 1. Unit ID (Element ID); 2. Length; 3. Initiator; 4. TX training response (TX-train-response); 5. RX training response (RX-train-response); 6. TX-TRN-OK; 7. TXSS-FBCK-REQ; 8. RS-FBCK; 9. BS-FBCK DMG antenna ID (BS-FBCK DMG antenna ID); 10. FBCK-REQ; 11. FBCK type (FBCK-TYPE); 12. MID Extension; 13. Capability Request; 14. First information; 15. Reserved; 16. RS-FBCK MSB (11ay); 17. BS-FBCK Antenna ID MSB (11ay); 18. Number of measurements MSB (11ay)); 19. EDMG extension flag ( EDMG Extension Flag(11ay)); 20. EDMG channel measurement present (11ay); 21. Sector sweep frame type (11ay); 22. DBF FBCK REQ; 23. Channel aggregation requested (Channel aggregation requested (11ay)) ; 24. Channel aggregation on present (11ay); 25. BF training type (11ay); 26. EDMG dual polarization TRN channel measurement present (11ay )); 27. Reserved(11ay)).

The specific meanings of the information fields 1 to 13 and 15 to 27 can be found in the description of IEEE 802.11ax and ay. The description of the first information of the information field 14 can be found in the description of step S610 in Figure 6, which will not be described again here.

It can be understood that this application does not make any restrictions on the number and position of bits used by the first information. The first information can use any one or more reserved bits in the DMG beam refinement unit. Figure 8 is based on the first information occupying Taking the 54th bit as an example, the first information can also occupy any one or more bits in the information field 27.

Figure 9 shows a schematic diagram of the first information carried in the EDMG BRP domain.

When the first frame is a BRP frame and the device sending the first frame is an EDMG device, the first information can be carried in the EDMG BRP domain. For example, referring to Figure 9, the EDMG BRP domain may include 27 information fields: 1. Initiator; 2. L-RX; 3. TX training response (TX-train-response); 4. RX training Response (RX-train-response); 5. TX-TRN-OK; 6. TXSS-FBCK-REQ; 7. TX sector identification (TX sector ID); 8. RS-FBCK; 9. BS-FBCK Antenna ID ; 10. MID Extension; 11. BRP-TXSS-OK; 12. L-TX-RX; 13. Requested EDMF TRN unit P (Requested EDMG TRN-unit P); 14. Requested EDMF TRN unit M ( Requested EDMG TRN-unit M) 15. Requested EDMG TRN-unit N (Requested EDMG TRN-unit N); 16. BRP-TXSS; 17. TXSS initiation (TXSS-initiator); 18. TXSS-PPDUs; 19. Sector scan Frame type (Sector sweep frame type (11ay)); 20. TXSS repeat (TXSS-repeat); 21. TXSS-MIMO; 22. BRP CDOWN; 23. TX antenna mask (TX antenna mask); 24. First path Training (First path training); 25. Dual polarization TRN (Dual polarization TRN); 26. First information; 27. Reserved (11ay).

The specific meanings of information fields 1 to 25 and 27 can be found in the descriptions of IEEE 802.11ad and IEEE 802.11ay. The description of the first information of information field 26 can be found in the description of step S610 in Figure 6, which will not be described again here.

It can be understood that this application does not make any restrictions on the number and position of bits used by the first information. The first information can use any one or more reserved bits in the EDMG BRP domain. Figure 9 is based on the first information occupying the third Taking 85 bits as an example, the first information may also occupy any one or more bits in the information field 27.

Figure 10 shows a schematic diagram of an EDMG BRP request unit including first information.

When the first frame is a BPR frame and is transmitted through a BRP-TX PPDU, the first information may be carried in an EDMG BRP request (EDMG BRP request) field. For example, referring to Figure 10, the EDMG BRP request unit may include 24 information fields: 1. Element ID; 2. Length; 3. Element ID extension; 4. L -RX; 5. L-TX-RX; 6. TX sector ID (TX sector ID); 7. Requested EDMG TRN-unit P (requested EDMG TRN-unit P); 8. Requested EDMG TRN-unit M (requested EDMG TRN-unit M); 9. Requested EDMG TRN-unit N (requested EDMG TRN-unit N); 10. BRP-TXSS; 11. TXSS initiator; 12. TXSS-PPDUs; 13. TXSS-repeat (TXSS-repeat); 14. TXSS-MIMO; 15. BPR CDOWN; 16. TX antenna mask; 17. Comeback delay; 18. First path training ; 19. Dual polarization TRN; 20. Digital BF request; 21. Feedback type; 22. NC mark (Nc index); 23. First information; 24. Reserved (reserved(11ay)).

The specific meanings of the information fields 1 to 22 can be found in the descriptions of IEEE 802.11ad and IEEE 802.11ay. The description of the first information of the information field 26 can be found in the description of step S610 in Figure 6, which will not be described again here.

It can be understood that this application does not make any restrictions on the number and position of bits used in the first information. The first information can use any one or more reserved bits in the EDMG BRP request unit. Figure 10 is centered on the first information. Taking the 91st bit as an example, the first information can also occupy any one or more bits in the information field 24.

Figure 11 shows a schematic diagram of the first information carried in the MAC header of the data frame.

When the first frame is a data frame, the first information may be carried in the MAC header, such as the quality of service (QoS) control field (QoS control field) of the MAC header. For example, when the data is classified into the QoS data class, see (a) of Figure 11, the QoS control domain may include 9 information fields: 1. TID; 2. EOSP; 3. Ack policy indicator (Ack policy indicator) ); 4. A-MSD U present; 5. A-MSD U type (A-MSD U type); 6. RDG/more PPDU; 7. Cache AC (buffered AC); 8. The first information; 9. AC constraint. When the data classification is QoS null, see (b) of Figure 11, the QoS control domain can include 9 information fields: 1. TID; 2. EOSP; 3. Ack policy indicator (Ack policy indicator); 4. 1. Information; 5. Reserved; 6. Reserved; 7. RDG/more PPDU; 8. Cache AC (buffered AC); 8. Reserved; 9. AC constraint.

For the specific meaning of other information fields except the first information, please refer to the description of IEEE 802.11ad and IEEE 802.11ay. For the description of the first information, please refer to the description of step S610 in Figure 6, which will not be described again here.

It can be understood that this application does not make any limit on the number and position of bits used by the first information. The first information can use any one or more reserved bits in the QoS control domain.

Figure 12 shows a schematic diagram in which the first information is carried in the PHY header of the data frame.

When the first frame is a data frame and the device sending the first frame is a DMG device, the first information may be carried in the PHY header. For example, in control mode (control mode), the first information can be carried in DMG control mode header fields (DMG control mode header fields). Referring to (a) of Figure 12, the DMG control mode header fields can Includes 8 information fields: 1. Differential encoder initialization (DEI); 2. Scrambler initialization (scrambler initialization); 3. Length; 4. PPDU type (PPDU type); 5. Training Length (training length); 6. Round trip time (Turnaround); 7. First information; 8. Reserved; 9. HCS. Under the single carrier modulation mode (single carrier, SC), the first information can be carried in the DMG SC mode header fields (DMG SC mode header fields). Referring to (b) of Figure 12, the DMG SC mode header fields can Includes 7 information fields (part of the information field starting from bit 39): 1. last RSSI; 2. Round trip time (Turnaround); 3. Extended SC MCS indication (Extended SC MCS indication); 4. π/2 -8-PSK applied (π/2-8-PSK applied); 5. First information; 6. Reserved; 7. HCS.

It can be understood that this application does not make any limit on the number and position of bits used by the first information. The first information can use any one or more reserved bits in the PHY header.

Figure 13 shows another schematic diagram in which the first information is carried in the PHY header of the data frame.

When the first frame is a data frame and the device sending the first frame is an EDMG device, the first information may be carried in the PHY header. For example, in the control mode, the first information can be carried in EDMG Header A (including Header A1 and A2, below taking A2 as an example) of the EDMG control PPDU (EDMG control PPDU), see (a) of Figure 13, The EDMG Header A2 can include the following 8 information fields: 1. TRN aggregation; 2. Number of transmit chains; 3. DMG TRN; 4. First path training (first path training) ; 5. Dual polarization TRN training; 6. First information; 7. Reserved; 8. CRC. In SC mode or OFDM mode, the first information can be carried in EDMG SC/OFDM EDMG Header A. See Figure 13(b). The EDMG SC/OFDM PPDU's EDMG-Header-A field can include at least the following 7 fields Information fields: 1. Superimposed code applied; 2. π/2-8-PSK applied (π/2-8-PSK applied); 3. Number of transmit chains; 4. DMG TRN; 5. First information; 6. Reserved; 7. CRC.

Figure 14 shows a schematic diagram of a capability unit including first information.

The second device can send the capability unit including the first information to the first device during any interaction. For example, the first device can send the capability unit during any handshake interaction in a BI such as ATI, BRP setting sub-phase, DTI, etc. The capability unit is sent to the first device. For example, referring to Figure 14, the capability unit may include the following 4 information fields: 1. Unit ID (element ID); 2. Unit length (element length); 3. Unit ID extension (element ID extension); 4. First information. Optionally, the first information may include an interval type and a frame type, where the interval type is used to indicate the period corresponding to the first frame, such as the BTI, A-BFT or DTI period. The frame Type is used to indicate the frame type of the first frame, such as BRP frame, data frame or SSW frame. For example, the length of the information field of the first information may be 1 byte, the interval type may use 2 bits, the frame type may use 4 bits, and a 2-bit reserved field may be left in the information field.

It can be understood that this application does not make any limit on the number and position of bits used in the first information.

The above is a schematic description of the carrying method of the first information, and the following is a description of the carrying method of the information of the second transmission sector.

In order to make it easier to understand the embodiments of the present application, Table 3 is an example in which the interval type information field provided by the embodiment of the present application uses 2 bits to indicate the four interval types that support passive sensing.

table 3:

Table 4 is an example in which the frame type information field provided by the embodiment of the present application uses 4 bits to indicate nine frame types that support passive sensing.

Table 4:

FIG. 15 shows a schematic diagram of an information unit including information on the number of second transmission sectors.

The information unit may be a DMG sector information unit (DMG sector information element). For example, the DMG sector information unit may include the following 6 information fields: 1. Unit ID (element ID); 2. Unit length (element length); 3. Element ID extension; 4. Number of sectors (num sectors); 5. Sector information control (sector info control); 6. LCI. When the quantity information represents all sectors, see (a) of Figure 15, the sector information control information field can use 1 byte and include the following 3 subfields: 1. All sectors (all sectors); 2. LCI present; 3. Reserved fields. The all sectors subfield can use 1 bit to represent all sectors. When the quantity information represents the specific value of the second transmission sector, see (b) of Figure 15, the sector information control information field can use 2 bytes and include the following 3 subfields: 1. Transmission sector Quantity (num TX sectors); 2. LCI present (LCI present); 3. Reserved field (reserved). The transmit sector number subfield may use 9 bits to represent the number value of the second transmit sector.

It can be understood that this application does not make any limit on the number and position of bits used in each information field.

FIG. 16 shows a schematic diagram of a description unit including description information of the second transmission sector.

The description unit may be a DMG sector descriptor element. For example, the DMG sector descriptor element includes the following four information fields: 1. Unit ID (element ID); 2. Unit length (element length). ); 3. Element ID extension; 4. Sector description 1 to N (sector descriptor 1-sector descriptor N), N is a positive integer. Each sector description information field can use 8 bytes and includes the following 8 subfields: 1. Sector azimuth; 2. Sector elevation; 3. Azimuth beam width (azimuth) beamwidth); 4. elevation beamwidth; 5. sector gain (sector ID); 6. sector identification (sector id); 7. DMG antenna identification (DMG ant id); 8. Reserved fields.

Figure 17 shows a schematic diagram of an information unit of second information generated based on a session password or PN.

The second information can be carried using two units. For example, the two units are a DMG sector mark information unit (DMG sector index info element) and a DMG sector mark list unit (DMG sector index list element). The DMG sector mark information unit may be used to provide control parameters, and the DMG sector list unit may be used to provide sector identification. For example, referring to (a) of Figure 17, the DMG sector mark information unit may include the following five information fields: 1. Unit ID (element ID); 2. Unit length (element length); 3. Unit ID extension ( element ID extension); 4. Number of sector marks (num sector indices); 5. Sector mark information control (sector index info control). The sector mark number field can use 1 byte to represent the number of all transmit sectors corresponding to the first frame, or it can also indicate the number of transmit sectors carried by a DMG sector mark information unit (i.e., the sector in the DMG sector list unit number of zone tag fields).

The sector mark information control information field can use 3 bytes. This information field can include the following 6 information fields: 1. Transmission number (num transmissions); 2. Next (next); 3. Transmission type (transmission type) ; 4. Start transmission mark (start transmission index); 5. Reserved field (reserved). Among them, the information field 1 can use 6 bits to indicate the number of PPDUs used for passive sensing, and the information field 2 can use one bit to indicate whether the information carried by the DMG sector list unit is used for the next passive sensing measurement result or for For the previous passive sensing measurement results, information field 3 can use 4 bits to indicate the type of frame used for passive sensing. The information field 4 may indicate which frame the frame used for passive sensing measurement starts from, thereby improving the accuracy of indicating the frame used for passive sensing measurement.

It should be noted that if the first frame is a BRP frame in the BRP TXSS stage, for example, the first frame is the BRP TXSS shown in Figure 3, then the information field 1, that is, the transmission number can be based on the EDMG BRP request unit in the BRP frame. Determined by the TXSS-PPDUs information field (see Figure 10). If the BRP TXSS process includes N rounds of training, each round includes M BRP-TX PPDUs, and N times M BRP-TX PPDUs can be used for passive sensing, then the value of the number of transmissions can also be multiple rounds in the BRP TXSS The total number of BRP-TX PPDUs in training is the product of N and M, or the value of the transmission number can be the number M of BRP-TX PPDUs in one round of training in BRP TXSS, so that the first device can pass each round The number of BRP-TX PPDUs included determines the number of PPDUs used for passive sensing.

For example, referring to (b) of Figure 17, the DMG sector mark list unit may include the following 6 information fields: 1. Unit ID (element ID); 2. Unit length (element length); 3. Unit ID extension ( element ID extension); 4. Transmission index (transmission index); 5. Number of sectors sent per transmission (num TX sector per transmission); 6. Sector index 1 to Q (sector index 1-Q), Q is positive Integer; bit padding in multiples of 7 and 8. The transmission mark information field can use 1 byte to indicate which frame the sector mark field described in the DMG sector mark list unit belongs to. If the information field 2 of the sector mark information control information field indicates that the information carried by the DMG sector mark list unit is used for the next passive sensing measurement result, since the passive sensing measurement result has not yet been generated, even if the first device knows the first The frame type of the frame cannot know the specific configuration of the TRN field of the PPDU, so the number of sending sectors field in each transmission can indicate how many sending sectors correspond to the TRN segment in a PPDU. For example, if the first device is a DMG device, when the transmission type is BRP-RX PPDU, the value represented by the number of sectors sent in each transmission can be 1; when the transmission type is BRP-TX PPDU, the number of sectors sent in each transmission can be The value represented by the number of sectors to be sent can be 4N, where N can be determined by the training length field in the PHY header. If the information field 2 of the sector mark information control information field indicates that the information carried by the DMG sector mark list unit is used for the previous passive sensing measurement results, since the first device knows the TRN field configuration of the first frame, the DMG sector The tag list unit may not include the information field of the number of sectors sent for each transmission. For DMG devices, the value of the number of sectors sent in each transmission can be determined based on the training length field in the PHY header. For EDMG equipment, the value of the sector number field for each transmission can be based on the EDMG TRN Length field, EDMG TRN-Unit M field, EDMG TRN-Unit N field and RX TRN-Units per Each TX TRN-Unit field in EDMG header A. Sure. Each sector index (sector index) is carried in the sector index field (sector index field), which can be composed of an 8-bit sector identifier (sector ID) and a 3-bit DMG antenna identifier (DMG Ant ID). When the DMG sector mark list unit is used to describe the sector marks used by all frames for passive sensing (all PPDUs for passive sensing), the unit may not include a transmission mark field. When the DMG sector mark list unit is used to describe the sector mark corresponding to a certain frame used for passive sensing, the unit may include a transmission mark field. In addition, information field 7 is an optional field. When the length of the information unit is not a multiple of 8, the information field 7 can be used to fill the length of the information unit to a multiple of 8. When the length of the information unit is a multiple of 8, This information unit may not carry this field.

It should be noted that the DMG sector mark list unit and the DMG sector mark information unit may be two independent units, or the DMG sector mark list unit may also be carried in the DMG sector in the form of a subelement. Mark information unit. This application does not place any special restrictions on the form of the DMG sector mark list unit and the DMG sector mark information unit. For example, if part or all of the TRN configuration indicated by the transmission quantity information field of multiple PPDUs is consistent, for example, each PPDU All or part of the EDMG TRN Length field, EDMG TRN-Unit M field, EDMG TRN-Unit N field and RX TRN-Units per Each TX TRN-Unit field in the EDMG header A are consistent respectively, then Figure 17(b) The information field 5 in can be carried in the sector mark information control field in Figure 17(a), thereby indicating through one field to save signaling overhead.

It should also be noted that when the first frame used for passive sensing is a BRP frame, the values of the start transmission flag information field and the transmission flag information field may be generated based on the conversation password in the BRP frame. When the first frame used for passive sensing is a data frame, the values of the start transmission flag information field and the transmission flag information field may be generated based on the PN in the data frame.

It should also be noted that when the first frame used for passive sensing is the BRP-TX PPDU in the BRP TXSS phase, the start transmission mark information field and the transmission mark information field can only mark the BRP-TX PPDU in one of the rounds of training. , for example, the second device can mark the BRP-TX PPDUs in the round of training based on the count of BRP-TX PPDUs in the round of training, or the second device can mark the round of training in the form of which round it is. The first device can derive the information of all BRP-TX PPDUs in multiple rounds through the information of one round of BRP-TX PPDU. Therefore, by utilizing the repeatability of each round of BRP-TX PPDU, the bit consumption of the second information is reduced, that is, the consumption of resources is reduced.

In addition, the values of the start transmission mark information field and the transmission mark information field may also be based on the packet number corresponding to the first frame, the segment number corresponding to the first frame, the sequence number corresponding to the first frame, and the communication corresponding to the first frame. The identifier or the frame body corresponding to the first frame is generated. The generation method is similar to the above. For simplicity, no details will be described here.

In order to make it easier to understand the embodiments of the present application, Table 5 shows the transmission type information field usage provided by the embodiments of the present application. An example of using 4 bits to indicate the 13 transmission types that support passive sensing.

table 5:

Figure 18 shows a schematic diagram of unit information of second information generated based on a transmission timestamp.

The second information can be carried using two units. For example, the two units are a DMG sector mark information unit (DMG sector index info element) and a DMG sector mark list unit (DMG sector index list element). The DMG sector mark information unit may be used to provide control parameters, and the DMG sector list unit may be used to provide sector identification. For example, referring to (a) of Figure 18, the DMG sector mark information unit may include the following five information fields: 1. Unit ID (element ID); 2. Unit length (element length); 3. Unit ID extension ( element ID extension); 4. Number of sector marks (num sector indices); 5. Sector mark information control (sector index info control). The unit identification extended information field can use 1 byte and can represent the number of sector mark information units in a DMG sector list unit.

Among them, the sector mark information control information field can use 10 bytes. This information field can include the following 7 information fields: 1. Transmission number (num transmissions); 2. Next (next); 3. Transmission type (transmission type); 4. Start timestamp; 5. End timestamp; 6. Reserved words Section (reserved). Among them, information fields 1 to 3 may be similar to those described in Figure 18, and will not be described again for simplicity. The start timestamp information field and the end timestamp information field can exist at the same time or separately. When the start timestamp information field exists alone, it can refer to the number of transmissions (num transmissions) frames starting from the start timestamp; when the end timestamp information field exists alone, it can refer to the transmissions up to the end timestamp. Number of (num transmissions) frames.

For example, referring to (b) of Figure 18, the DMG sector mark list unit may include the following 7 information fields: 1. Unit ID (element ID); 2. Unit length (element length); 3. Unit ID extension ( element ID extension); 4. Transmission timestamp; 5. Number of sectors sent per transmission (num TX sectors per transmission); 6. Sector tags 1 to Q (sector index 1-Q), Q is Positive integer; bit padding in multiples of 7 and 8. Among them, information fields 1 to 3 and 5 to 7 may be similar to those described in Figure 17, and will not be described again for simplicity. The transmission timestamp may indicate that the sector mark in the DMG sector mark list unit describes the frame sent at the time indicated by the transmission timestamp. Illustratively, the transmission timestamp information field may use 8, 4, or 2 bytes. In addition, when the DMG sector mark list unit is used to describe the sector marks used by all frames for passive sensing (all PPDUs for passive sensing), the unit may not include a transmission timestamp information field. When the DMG sector mark list unit is used to describe the sector mark corresponding to a certain frame used for passive sensing, the unit may include a transmission timestamp information field.

It should be noted that the DMG sector mark list unit and the DMG sector mark information unit may be two independent units, or the DMG sector mark list unit may also be carried in the DMG sector in the form of a subelement. The mark information unit is not specifically limited in this application.

It should be noted that the implementation of the second information shown in Figure 18 does not impose any limitation on the type of the first frame. This implementation can be adopted when the first frame is a BRP frame, a data frame, an SSW frame, etc.

It should also be noted that the frame formats described in Figures 17 and 18 above can be applied when the BRP frame or the first request frame and the first response frame belong to the same allocation period. In the case where the BRP frame and the first request frame or the first response frame belong to different allocation periods, it may also be indicated that the requested sector information is for the BRP frame sent in which allocation period. For example, the allocation range field can be used to indicate whether it is the previous allocation period, the current allocation period, or the next allocation period. Wherein, different allocation periods refer to different channel access periods allocated in the same BI. In addition, the sector index (sector index) can have the following two meanings: first, each sector index corresponds to the sector of each TRN subfield in the TRN field. According to the 802.11ad/ay protocol definition, for DMG devices, when sending BRP-TX PPDU or BRP-RX PPDU, there can be 4N TRN subfields (N is determined by the Training Length in the PHY header); for EDMG devices, when sending BRP -TX PPDU or BRP-RX/TX PPDU, there can be ML TRN subfields (M is determined by the EDMG TRN M field in EDMG Header A, L is determined by the EDMG TRN Length field in EDMG Header A); when sending BRP-RX PPDU, there can be 10L TRN subfields. Second, each sector mark corresponds to the sector after each transmission sector change in the TRN field. According to the 802.11ad/ay protocol definition, for DMG devices, when sending BRP-TX PPDU, there can be 4N sector changes; for EDMG devices, when sending BRP-TX PPDU, there can be ML/N times of sector changes. (N is determined by the EDMG TRN N field in EDMG Header A). When N=0, there are ML sector changes. When sending BRP-RX/TX PPDU, there can be L/C sector changes. The value of C Determined by the RX TRN-Units per Each TX TRN-Unit field in EDMG Header A of the BRP-RX/TX PPDU. For DMG equipment and EDMG equipment, when sending BRP-RX PPDU, the TRN field uses the preamble and data transmission direction. The same sectors will not change. Furthermore, when the first method is used to represent sector flags, N sector flags can be used to represent a group of sectors. When the second method is used, 1 sector flag can be used to represent a group of sectors, which can reduce Small transmission overhead.

Figure 19 shows a schematic diagram in which the first response frame includes description information of the first sending sector.

The description information of the first transmission sector can be carried using two units. For example, the two units are a DMG sector information unit (DMG sector information element) and a DMG sector list element (DMG sector list element). The DMG sector information unit may be used to provide control parameters, and the DMG sector list unit may be used to provide sector description information. For example, referring to (a) of Figure 19, the DMG sector information unit may include the following five information fields: 1. Unit ID (element ID); 2. Unit length (element length); 3. Unit ID extension (element ID extension); 4. Number of sectors (num sector); 5. Sector information control (sector info control). The sector number field can use 1 byte to represent the number of all sectors corresponding to the first frame, or it can also indicate the number of sectors carried by a DMF sector information unit (that is, the number of sector fields in the DMG sector list unit ).

The sector information control information field can use 3 bytes. This information field can include the following 6 information fields: 1. Transmission number (num transmissions); 2. Next (next); 3. Transmission type (transmission type); 4. Start transmission index (start transmission index); 5. Reserved field (reserved). Among them, the information field 1 can use 6 bits to indicate the number of PPDUs used for passive sensing, and the information field 2 can use one bit to indicate whether the information carried by the DMG sector list unit is used for the next passive sensing measurement result or for For the previous passive sensing measurement results, information field 3 can use 4 bits to indicate the type of frame used for passive sensing. The information field 4 may indicate which frame the frame used for passive sensing measurement starts from, thereby improving the accuracy of indicating the frame used for passive sensing measurement.

For example, referring to (b) of Figure 19, the DMG sector list unit may include the following 7 information fields: 1. Unit ID (element ID); 2. Unit length (element length); 3. Unit ID extension (element ID extension); 4. Transmission mark (transmission index); 5. Number of sectors sent per transmission (num TX sectors per transmission) 6. Sector description 1 to N (sector descriptor 1-sector descriptor N), N is positive Integer; bit padding in multiples of 7 and 8.

It should be noted that the DMG sector mark list unit and the DMG sector mark information unit may be two independent units, or the DMG sector mark list unit may also be carried in the DMG sector in the form of a subelement. The mark information unit is not specifically limited in this application. The unit design shown in Figure 19 can be applied to a scenario where the first device does not store the information of the second transmission sector locally. Different from the unit design shown in Figure 17, the unit shown in Figure 19 can carry the second transmission sector. For the description information of the sector and the meaning of other fields shown in Figure 19, please refer to the description in Figure 17 and will not be described again here.

FIG. 20 shows another schematic diagram in which the first response frame includes description information of the first sending sector.

The description information of the first sending sector may be carried using two units. For example, the two units are a DMG sector information unit (DMG sector info element) and a DMG sector list element (DMG sector list element). Wherein, the DMG sector information unit may be used to provide control parameters, and the DMG sector list unit may be used to provide sector description information. For example, referring to (a) of Figure 20, the DMG sector information unit may include the following five information fields: 1. Unit ID (element ID); 2. Unit length (element length); 3. Unit ID extension (element ID extension); 4. Number of sectors (num sector); 5. Sector information control (sector info control). The unit identification extended information field can use 1 byte to represent a DMG sector list unit. The number of information units in the sector.

Among them, the sector information control information field can use 10 bytes. This information field can include the following 6 information fields: 1. Transmission number (num transmissions); 2. Next (next); 3. Transmission type (transmission type) ); 4. Start timestamp (start timestamp); 5. End timestamp (end timestamp); 6. Reserved fields. Among them, information fields 1 to 3 may be similar to those described in Figure 17, and will not be described again for simplicity. The start timestamp information field and the end timestamp information field can exist at the same time or separately. When the start timestamp information field exists alone, it can refer to the number of transmissions (num transmissions) frames starting from the start timestamp; when the end timestamp information field exists alone, it can refer to the transmissions up to the end timestamp. Number of (num transmissions) frames.

For example, referring to (b) of Figure 20, the DMG sector list unit may include the following 7 information fields: 1. Unit ID (element ID); 2. Unit length (element length); 3. Unit ID extension (element ID extension); 4. Transmission timestamp; 5. Number of sectors sent per transmission (num TX sectors per transmission) 6. Sector description 1 to N (sector index 1-N), N is a positive integer ; Bit padding in multiples of 7 and 8. Among them, information fields 1 to 3 and 5 to 7 may be similar to those described in Figure 17, and will not be described again for simplicity. The transmission timestamp may indicate that the sector in the DMG sector list unit describes the frame sent at the time indicated by the transmission timestamp. Illustratively, the transmission timestamp information field may use 8, 4, or 2 bytes. In addition, when the DMG sector list unit is used to describe sectors used by all frames for passive sensing (all PPDUs for passive sensing), the unit may not include a transmission timestamp information field. When the DMG sector list unit is used to describe a sector corresponding to a frame used for passive sensing, the unit may include a transmission timestamp information field.

It should be noted that the DMG sector mark list unit and the DMG sector mark information unit may be two independent units, or the DMG sector mark list unit may also be carried in the DMG sector in the form of a subelement. The mark information unit is not specifically limited in this application. The unit design shown in Figure 20 can be applied to a scenario where the first device does not store the information of the second transmission sector locally. Different from the unit design shown in Figure 18, the unit shown in Figure 20 can carry the second transmission sector. For the description information of the sector and the meaning of other fields shown in Figure 20, please refer to the description in Figure 18 and will not be described again here.

In addition, in this application, the above-mentioned frame formats of Figures 7 to 20 are only examples, and no restrictions are placed on the bit length and name of each information field. Its design should conform to the inherent usage logic, and its deformation should not be considered to exceed Scope of this application.

The method embodiments of the embodiments of the present application are described above, and the corresponding device embodiments are introduced below. It should be understood that the description of the device embodiments corresponds to the description of the method embodiments. Therefore, the parts not described in detail can be referred to the previous method embodiments.

Figure 21 is a schematic diagram of a communication device provided by an embodiment of the application. As shown in Figure 21, the device 2100 may include a transceiver unit 2110 and a processing unit 2120. The transceiver unit 2110 can communicate with the outside, and the processing unit 2120 is used for data processing. The transceiver unit 2110 may also be called a communication interface or a transceiver unit.

In one possible design, the apparatus 2100 can implement a process corresponding to the execution of the first device in the above method embodiment, wherein the processing unit 2120 is configured to perform processing related to the first device in the above method embodiment. In operation, the transceiver unit 2110 is configured to perform operations related to the transceiver of the first device in the above method embodiment.

Exemplarily, the transceiver unit 2110 receives the first information from the second device, the first information is used to indicate that the second device can provide the information of the first transmission sector corresponding to the first frame, and the first Frame for Beam Refinement Protocol BRP frame and/or data frame; the processing unit 2110 is used to measure the first frame from the second device to generate a measurement result, and the information of the first transmission sector and the measurement result are used to generate a perception result.

Optionally, the first information is also used to indicate that the second device can provide location information of the second device.

Optionally, the transceiver unit 2110 is also configured to send a first request frame; the transceiver unit 2110 is also configured to receive a first response frame in response to the first request frame, where the first response frame includes second information, and the second information indicates First send sector information.

Optionally, the first response frame also includes location information of the second device.

Optionally, the processing unit 2120 is also configured to generate a corresponding relationship between the information of the second sending sector and the identifier of the second sending sector. The second sending sector is the sending sector of the second device, and the second sending sector It includes the first transmitting sector; the processing sheet 2120 is also used to determine the information of the first transmitting sector according to the second information and the corresponding relationship, and the second information is used to indicate the identity of the first transmitting sector.

Optionally, the transceiver unit 2110 is also configured to send a second request frame, and the second request frame is used to request the information of the second transmit sector; the transceiver unit 2110 is also configured to receive the second transmitter in response to the second request frame. Sector information.

Optionally, the processing unit 2120 is also configured to obtain transmission resources for sending the first request frame. The transmission resources are resources allocated to the first device, or the transmission resources are not allocated to the first device. H.

Optionally, if the processing unit 2120 does not send the first request frame after the transceiver unit 2110 passes the first time after measuring the first frame, the processing unit 2120 is also configured to discard the measurement result; if the processing unit 2120 does not send the first request frame after measuring the first frame , the transceiver unit 2110 does not receive the first response frame after the second time, the processing unit 2120 is also used to discard the measurement result; if the transceiver unit 2110 does not receive the first response after the third time after sending the first request frame, frame, and the processing unit 2120 has not measured the first frame, the transceiving unit 2110 is also configured to resend the first request frame.

Optionally, when the first frame is a BRP frame, the first information is carried in at least one of the following fields: BRP request field, EDMG BRP field, EDMG BRP request unit, DMG beam refinement unit or capability unit; at first If the frame is a data frame, the first information is carried in at least one of the following fields: a media access control MAC header, a physical layer PHY header, or a capability unit.

Optionally, the second information is generated based on at least one of the following information: the conversation token corresponding to the first frame, the transmission timestamp corresponding to the first frame, the packet number corresponding to the first frame, the The segment number, the sequence number corresponding to the first frame, the communication identifier corresponding to the first frame, and the frame body corresponding to the first frame.

Optionally, the first device is an access node and the second device is a site; or the first device is a site and the second device is an access node; or the first device and the second device are different sites; or the first device is a site and the second device is an access node. The first device and the second device are different access points.

In yet another possible design, the device 2100 can implement a process corresponding to the execution of the second device in the above method embodiment, wherein the transceiver unit 2110 is used to perform the transceiver related processing of the second device in the above method embodiment. The processing unit 2120 is configured to perform operations related to processing of the second device in the above method embodiment.

Exemplarily, the transceiver unit 2110 is configured to send first information. The first information is used to indicate that the second device can provide information about the first transmission sector corresponding to the first frame. The first frame is a beam refinement protocol BRP frame and/or Or a data frame; the transceiver unit 2110 is used to send the first frame to the first device, the first frame is used to generate a measurement result, and the information and measurement results of the first sending sector are used to generate a sensing result.

Optionally, the transceiver unit 2110 is also configured to receive the first request frame; the transceiver unit 2110 is also configured to send a first response frame in response to the first request frame, the first response frame includes second information, and the second information indicates the first transmission Sector information.

Optionally, the second information is used to indicate the identity of the first sending sector.

Optionally, the transceiver unit 2110 is also configured to receive a second request frame, which is used to request information of the second transmit sector; the transceiver unit 2110 is also configured to send the information of the second transmit sector in response to the second request frame. Information, the second sending sector is the sending sector of the second device, and the second sending sector includes the first sending sector.

Optionally, the processing unit 2120 is also configured to obtain the transmission resources used for sending the first response frame. The transmission resources are resources allocated to the second device, or the transmission resources are not resources allocated to the second device.

Optionally, when the first frame is a BRP frame, the first information is carried in at least one of the following fields: BRP request field, EDMG BRP field, EDMG BRP request unit, DMG beam refinement unit or capability unit; In the case where the first frame is a data frame, the first information is carried in at least one of the following fields: a media access control MAC header, a physical layer PHY header, or a capability unit.

Optionally, the first device is an access node and the second device is a site; or the first device is a site and the second device is an access node; or the first device and the second device are different sites; or the first device is a site and the second device is an access node. The first device and the second device are different access point.

It should be understood that the device 2100 here is embodied in the form of a functional unit. The term "unit" as used herein may refer to an application specific integrated circuit (ASIC), an electronic circuit, a processor (such as a shared processor, a proprietary processor, or a group of processors) used to execute one or more software or firmware programs. processor, etc.) and memory, merged logic circuitry, and/or other suitable components to support the described functionality. In an optional example, those skilled in the art can understand that the device 2100 can be specifically the first device in the above embodiment, and can be used to perform the process corresponding to the first device in the above method embodiment, or the device 2100 can Specifically, the second device in the above embodiment can be used to execute the process corresponding to the second device in the above method embodiment. To avoid duplication, the details will not be described again.

The above-mentioned device 2100 has the function of realizing the corresponding steps executed by the first device in the above-mentioned method, or the above-mentioned device 2100 has the function of realizing the corresponding steps executed by the second device in the above-mentioned method. The functions described can be implemented by hardware, or can be implemented by hardware executing corresponding software. The hardware or software includes one or more modules corresponding to the above functions; for example, the transceiver unit can be replaced by a transceiver (for example, the sending unit in the transceiver unit can be replaced by a transmitter, and the receiving unit in the transceiver unit can be replaced by a receiving unit. (machine replacement), other units, such as processing units, etc., can be replaced by processors to respectively perform the sending and receiving operations and related processing operations in each method embodiment.

In addition, the above-mentioned transceiver unit may also be a transceiver circuit (for example, it may include a receiving circuit and a transmitting circuit), and the processing unit may be a processing circuit. In this embodiment of the present application, the device in Figure 22 may be the second device or the first device in the previous embodiment, or it may be a chip or a chip system, such as a system on chip (SoC). The transceiver unit may be an input-output circuit or a communication interface. The processing unit is a processor or microprocessor or integrated circuit integrated on the chip. No limitation is made here.

Figure 22 shows a communication device 2200 provided by an embodiment of the present application. The device 200 includes a processor 2210 and a memory 2220. The memory 2220 is used to store instructions, and the processor 2210 can call the instructions stored in the memory 2220 to execute the process corresponding to the first device or the second device in the above method embodiment.

Specifically, in a possible implementation, the memory 2220 is used to store instructions, and the processor 2210 can call the instructions stored in the memory 2220 to execute the process corresponding to the first device in the above method embodiment.

Specifically, in another possible implementation, the memory 220 is used to store instructions, and the processor 2210 can call the instructions stored in the memory 2220 to execute the process corresponding to the second device in the above method embodiment.

It should be understood that the device 2200 may be specifically the first device or the second device in the above embodiment, or may be a chip or a chip system for the first device or the second device. Specifically, the device 2200 may be used to execute the process corresponding to the first device or the second device in the above method embodiment.

Optionally, the memory 2220 may include read-only memory and random access memory and provide instructions and data to the processor. A portion of the memory may also include non-volatile random access memory. For example, the memory may also store device type information. The processor 2210 may be configured to execute instructions stored in the memory, and when the processor 2210 executes the instructions stored in the memory, the processor 2210 is configured to execute the above method embodiment corresponding to the first device or the second device. process.

During the implementation process, each step of the above method can be completed by instructions in the form of hardware integrated logic circuits or software in the processor. The steps of the methods disclosed in conjunction with the embodiments of the present application can be directly implemented by a hardware processor for execution, or can be executed by a combination of hardware and software modules in the processor. The software module can be located in random access memory, flash memory, read-only memory, programmable read-only memory or electrically erasable programmable memory, registers and other mature storage media in this field. The storage medium is located in the memory. The processor reads the information in the memory and completes the processing in combination with its hardware. Describe the steps of the method. To avoid repetition, it will not be described in detail here.

It should be noted that the processor in the embodiment of the present application may be an integrated circuit chip with signal processing capabilities. During the implementation process, each step of the above method embodiment can be completed through an integrated logic circuit of hardware in the processor or instructions in the form of software. The above-mentioned 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, or a discrete hardware component. The processor in the embodiment of the present application can implement or execute the various methods, steps and logical block diagrams disclosed in the embodiment of the present application. A general-purpose processor may be a microprocessor or the processor may be any conventional processor, etc. The steps of the method disclosed in conjunction with the embodiments of the present application can be directly implemented by a hardware decoding processor, or executed by a combination of hardware and software modules in the decoding processor. The software module can be located in random access memory, flash memory, read-only memory, programmable read-only memory or electrically erasable programmable memory, registers and other mature storage media in this field. The storage medium is located in the memory, and the processor reads the information in the memory and completes the steps of the above method in combination with its hardware.

It can be understood that the memory in the embodiment of the present application may be a volatile memory or a non-volatile memory, or may include both volatile and non-volatile memories. Among them, non-volatile memory can be read-only memory (ROM), programmable ROM (PROM), erasable programmable read-only memory (erasable PROM, EPROM), electrically removable memory. Erase electrically programmable read-only memory (EPROM, EEPROM) or flash memory. Volatile memory can be random access memory (RAM), which is used as an external cache. By way of illustration, but not limitation, many forms of RAM are available, such as static random access memory (SRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (synchronous DRAM, SDRAM), double data rate synchronous dynamic random access memory (double data rate SDRAM, DDR SDRAM), enhanced synchronous dynamic random access memory (enhanced SDRAM, ESDRAM), synchronous link dynamic random access memory (synchlink DRAM, SLDRAM) ) and direct memory bus random access memory (direct rambus RAM, DR RAM). It should be noted that the memory of the systems and methods described herein is intended to include, but is not limited to, these and any other suitable types of memory.

Figure 23 shows a communication device 2300 provided by an embodiment of the present application. The device 2300 includes a processing circuit 2310 and a transceiver circuit 2320. The processing circuit 2310 and the transceiver circuit 2320 communicate with each other through internal connection paths. The processing circuit 2310 is used to execute instructions to control the transceiver circuit 2320 to send signals and/or receive signals.

Optionally, the device 2300 may also include a storage medium 2330, which communicates with the processing circuit 2310 and the transceiver circuit 2320 through internal connection paths. The storage medium 2330 is used to store instructions, and the processing circuit 2310 can execute the instructions stored in the storage medium 2330.

In a possible implementation, the device 2300 is configured to implement the process corresponding to the first device in the above method embodiment.

In another possible implementation, the device 2300 is configured to implement the process corresponding to the second device in the above method embodiment.

According to the method provided by the embodiment of the present application, the present application also provides a computer program product. The computer program product includes: computer program code. When the computer program code is run on a computer, it causes the computer to execute the embodiment shown in Figure 3 method in.

According to the method provided by the embodiment of the present application, the present application also provides a computer-readable medium. The computer-readable medium stores program code. When the program code is run on a computer, the computer is caused to execute the embodiment shown in Figure 3 method in.

According to the method provided by the embodiments of this application, this application also provides a system, which includes the aforementioned one or more sites and one or more access points.

The term "at least one of..." or "at least one of..." herein refers to all or any combination of the listed items, for example, "at least one of A, B and C", It can mean: A exists alone, B exists alone, C exists alone, A and B exist simultaneously, B and C exist simultaneously, and A, B and C exist simultaneously. "At least one" in this article means one or more. "Multiple" means two or more.

It should be understood that in various embodiments of the present application, "B corresponding to A" means that B is associated with A, and B can be determined based on A. However, it should also be understood that determining B based on A does not mean determining B only based on A. B can also be determined based on A and/or other information. The terms “including,” “includes,” “having,” and variations thereof all mean “including but not limited to,” unless otherwise specifically emphasized.

It should also be understood that in the various embodiments of the present application, the first, second and various numerical numbers are only for convenience of description and are not used to limit the scope of the embodiments of the present application. For example, distinguish different information, etc.

It should also be understood that in various embodiments of the present application, "instruction" may include direct instructions and indirect instructions, and may also include explicit instructions and implicit instructions. The information indicated by a certain piece of information (such as the first information mentioned above) is called information to be indicated. In the specific implementation process, there are many ways to indicate the information to be indicated. For example, but not limited to, direct indication can be The information to be indicated, such as the information to be indicated itself or the index of the information to be indicated, etc. The information to be indicated may also be indirectly indicated by indicating other information, where there is an association relationship 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 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 by means of a pre-agreed (for example, protocol stipulated) arrangement order of each piece of information, thereby reducing the indication overhead to a certain extent.

It should also be understood that in various embodiments of the present application, "pre-configuration" can be realized by pre-saving corresponding codes, tables or other methods that can be used to indicate relevant information in the device (for example, the first device). The application does not limit its specific implementation method.

Those of ordinary skill in the art will appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented with electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Skilled artisans may implement the described functionality using different methods for each specific application, but such implementations should not be considered beyond the scope of this application.

Those skilled in the art can clearly understand that for the convenience and simplicity of description, the specific working processes of the systems, devices and units described above can be referred to the corresponding processes in the foregoing method embodiments, and will not be described again here.

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 illustrative. For example, the division of the units is only a logical function division. In actual implementation, there may be other division methods. For example, multiple units or components may be combined or can be integrated into another system, or some features can be ignored, or not implemented. On the other hand, the coupling or direct coupling or communication connection between each other shown or discussed may be through some interfaces, and the indirect coupling or communication connection of the devices or units may be in electrical, mechanical or other forms.

The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place, or they may be distributed to multiple network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of this embodiment.

In addition, each functional unit in each embodiment of the present application can be integrated into one processing unit, each unit can exist physically alone, or two or more units can be integrated into one unit.

If the functions are implemented in the form of software functional units and sold or used as independent products, they 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 existing technology or the part of the technical solution can be embodied in the form of a software product. The computer software product is stored in a storage medium, including Several instructions are used to cause a computer device (which may be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the methods described in various embodiments of this application. The aforementioned storage media include: 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. .

The above are only specific embodiments of the present application, but the protection scope of the present application is not limited thereto. Any person familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present application. should be covered by the protection scope of this application. Therefore, the protection scope of this application should be subject to the protection scope of the claims.

Claims

A sensing method, characterized in that the method includes:

The first device receives first information from the second device. The first information is used to indicate that the second device can provide information about the first transmission sector corresponding to the first frame. The first frame is beam refinement. Protocol BRP frames and/or data frames;

The first device measures the first frame from the second device to generate a measurement result, and the information of the first transmitting sector and the measurement result are used to generate a sensing result.
The method of claim 1, wherein the first information is also used to indicate that the second device can provide location information of the second device.
The method according to claim 1 or 2, characterized in that the method further includes:

The first device sends a first request frame;

The first device receives a first response frame in response to the first request frame, the first response frame including second information indicating information of the first transmission sector.
The method of claim 3, further comprising:

The first device generates a corresponding relationship between the information of the second sending sector and the identifier of the second sending sector. The second sending sector is the sending sector of the second device. The second sending sector Sectors include said first transmission sector;

The first device determines the information of the first transmitting sector according to the second information and the corresponding relationship, and the second information indicates the identity of the first transmitting sector.
The method of claim 4, further comprising:

The first device sends a second request frame, the second request frame is used to request information of the second sending sector;

The first device receives information of the second transmission sector in response to the second request frame.
The method according to any one of claims 1 to 5, characterized in that the method further includes:

The first device obtains transmission resources for sending the first request frame, and the transmission resources are resources allocated to the first device, or the transmission resources are not resources allocated to the first device. .
The method according to any one of claims 3 to 6, characterized in that the method further includes:

If the first device does not send the first request frame within a first time after measuring the first frame, discard the measurement result;

If the first device does not receive the first response frame after a second period of time after measuring the first frame, discard the measurement result;

If the first device does not receive the first response frame after a third time has elapsed after sending the first request frame, and the first device has not measured the first frame, then the first device resends the first response frame. A request frame.
The method according to any one of claims 1 to 7, characterized in that,

In the case where the first frame is a BRP frame, the first information is carried in at least one of the following fields: BRP request field, EDMG BRP field, EDMG BRP request unit, DMG beam refinement unit or capability unit;

If the first frame is a data frame, the first information is carried in at least one of the following fields: a media access control MAC header, a physical layer PHY header, or a capability unit.
The method of claims 1 to 8, wherein the second information is generated based on at least one of the following information: a dialogue token corresponding to the first frame, a dialogue token corresponding to the first frame Transmission timestamp, the first frame The corresponding packet number, the segment number corresponding to the first frame, the sequence number corresponding to the first frame, the communication identifier corresponding to the first frame, and the frame body corresponding to the first frame.
The method according to any one of claims 1 to 9, characterized in that the first device is an access node and the second device is a site; or the first device is a site and the third device is a site. The two devices are access nodes; or the first device and the second device are different sites; or the first device and the second device are different access points.
A sensing method, characterized in that the method includes:

The second device sends first information to the first device. The first information is used to indicate that the second device can provide information about the first transmission sector corresponding to the first frame. The first frame is a beam refinement protocol. BRP frames and/or data frames;

The second device sends the first frame to the first device, the first frame is used to generate a measurement result, and the information of the first sending sector and the measurement result are used to generate a sensing result.
The method of claim 11, wherein the first information is also used to indicate that the second device can provide location information of the second device.
The method according to claim 11 or 12, characterized in that the method further includes:

The second device receives the first request frame;

The second device sends a first response frame in response to the first request frame, the first response frame including second information indicating information of the first transmission sector.
The method according to any one of claims 11 to 13, wherein the second information indicates the identity of the first transmitting sector.
The method according to any one of claims 11 to 14, characterized in that the method further includes:

The second device receives a second request frame, the second request frame is used to request information of the second sending sector;

The second device sends information of a second sending sector in response to the second request frame, the second sending sector is a sending sector of the second device, and the second sending sector includes the The first sending sector.
The method according to claims 12 to 15, characterized in that the method further includes:

The second device obtains transmission resources used to send the first response frame, and the transmission resources are resources allocated to the second device, or the transmission resources are not allocated to the second device. resource.
The method according to any one of claims 11 to 16, characterized in that, when the first frame is a BRP frame, the first information is carried in at least one of the following fields: BRP request field , EDMG BRP domain, EDMG BRP request unit, DMG beam refinement unit or capability unit;

If the first frame is a data frame, the first information is carried in at least one of the following fields: a media access control MAC header, a physical layer PHY header, or a capability unit.
The method according to any one of claims 11 to 17, characterized in that the second information is generated based on at least one of the following information: the dialogue token corresponding to the first frame, the third The transmission timestamp corresponding to one frame, the packet number corresponding to the first frame, the segment number corresponding to the first frame, the sequence number corresponding to the first frame, the communication identifier corresponding to the first frame, The frame body corresponding to the first frame.
The method according to any one of claims 11 to 18, characterized in that the first device is an access node and the second device is a site; or the first device is a site and the third device is a site. The two devices are access nodes; or the first device and the second device are different sites; or the first device and the second device are different access points.
A communication device, characterized by comprising a unit for performing the method described in any one of claims 1 to 10, or a unit for performing the method described in any one of claims 11 to 19.
A communication device, characterized in that it includes a processor and an interface circuit, the interface circuit is used to receive computer codes or instructions and transmit them to the processor, and the processor runs the computer codes or instructions, as claimed in the claim The method according to any one of claims 1 to 11 is performed, or the method according to any one of claims 11 to 19 is performed.
A communication device, characterized in that it includes at least one processor, the at least one processor is coupled to at least one memory, and the at least one processor is used to execute a computer program or instructions stored in the at least one memory, as claimed in the claim The method according to any one of claims 1 to 10 is performed, or the method according to any one of claims 11 to 19 is performed.
A computer-readable storage medium, characterized in that computer instructions are stored in the computer-readable storage medium. When the computer instructions are run on a computer, the method as claimed in any one of claims 1 to 10 is executed, or the method according to any one of claims 11 to 19 is executed.