CN117098238A

CN117098238A - Sensing method and communication device

Info

Publication number: CN117098238A
Application number: CN202210504486.7A
Authority: CN
Inventors: 娜仁格日勒; 韩霄; 杜瑞; 狐梦实; 郭宇宸; 李云波; 李伊青
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2022-05-10
Filing date: 2022-05-10
Publication date: 2023-11-21
Also published as: WO2023216888A1

Abstract

The application provides a perception method and a communication device, the application is applied to a wireless local area network system supporting 802.11 series protocols such as IEEE 802.11ax or Wi-Fi6, 802.11be, wi-Fi 7 or EHT,802.11bf or WLAN perception sending, and further such as 802.11be next generation, wi-Fi 8 and the like, and can also be applied to a wireless personal area network system based on ultra-wideband UWB, the method comprises the following steps: the first device receives first information from the second device, wherein the first information is used for indicating that the second device can provide information of a first transmitting sector corresponding to a first frame, and 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 generate a measurement result, and the information of the first transmitting sector and the measurement result are used for generating a sensing result, so that flexible sensing can be realized.

Description

Sensing method and communication device

Technical Field

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

Background

With the development of communication technology, in a communication architecture of a wireless local area network (wireless local area network, WLAN), sensing can be performed by using an ability of a Station (STA) or an Access Point (AP) to transmit electromagnetic waves. For example, wi-Fi radar may be used to detect the presence of objects in the transmission path environment, action trajectories, biological characteristics, and like sensing technologies. However, in the current communication architecture, how to use STA or AP to realize sensing is still in the exploration phase.

Disclosure of Invention

The application provides a method and a device for realizing perception, which can realize flexible perception.

In a first aspect, a method of implementing awareness is provided, the method being executable by a first device or a chip in the first device, the method comprising: the first device receives first information from the second device, wherein the first information is used for indicating that the second device can provide information of a first transmitting sector corresponding to a first frame, and the first frame is a Beam Refinement Protocol (BRP) frame and/or a data frame; the first device measures a 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.

Alternatively, the first information is used to indicate that the first frame and/or the second device is available for perception.

Alternatively, the first information is used to indicate that the first frame and/or the second device support passive sensing.

Wherein passive perception may refer to: the (transmission of the device, frame or frame) is not specifically designed (or specifically designed) for perception and other devices may use the information about the (transmission of the device, frame or frame). The related information may be the transmission sector information of the present application, that is, the second device may be able to provide the transmission sector information corresponding to the first frame.

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

In addition, the first information may be further used to indicate that the second device is able to accurately transmit the first frame.

Alternatively, the first information indicates that the second device is able to provide information of the first transmission sector by indicating that the second device is able to accurately transmit the first frame.

The first information may also be used to indicate that the time interval between the first plurality of frames is accurate.

Alternatively, the first information accurately indicates that the second device is capable of providing information of the first transmission sector by indicating a time interval between the plurality of first frames.

Therefore, in the application, the BRP frame and the sending sector information corresponding to the data frame which exist in the uplink and the downlink in a plurality of time periods can be used for sensing, and the flexibility of sensing can be improved.

With reference to the first aspect, in certain implementations of the first aspect, the first information is further used to indicate that the second device is capable of providing location information of the second device.

Thus, in the present application, the first information may indicate that the second device is capable of providing information of the first transmission sector corresponding to the first frame and location information of the second device, and further the first device may request the information of the first transmission sector and the location information for sensing.

With reference to the first aspect, in certain 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, the first response frame including second information indicating information of the first transmission sector.

Therefore, in the application, the first device can acquire the information of the transmitting sector of the second device through the interaction of the request frame and the response frame between the first device and the second device, and the interaction of the first frame and the sector information can be measured in different time periods, so that the sensing is more flexible, and more application scenes can be applied.

With reference to the first aspect, in certain implementations of the first aspect, the first response frame further includes location information of the second device.

With reference to the first aspect, in certain implementations of the first aspect, the method further includes: the first device generates a corresponding relation between information of a second transmitting sector and an identifier of the second transmitting sector, wherein the second transmitting sector is a transmitting sector of the second device, and the second transmitting sector comprises a first transmitting sector; the first device determines information of the first sending sector according to the second information and the corresponding relation, wherein the second information is used for indicating identification of the first sending sector.

Therefore, in the application, the first device can store the information of the sending sector of the second device, and create the searching list of the information of the sending sector and the identification, so that the first device can acquire the information of the first sending sector through the searching list when requesting the identification of the first sending sector, thereby saving the transmission cost.

With reference to the first aspect, in certain implementations of the first aspect, the method further includes: the first device sends a second request frame, wherein the second request frame is used for requesting information of a second sending sector; the first device receives information of a second transmission sector in response to the second request frame.

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

Therefore, in the application, the first device can request to obtain the information of the second transmitting sector of the second device, so that the information of the transmitting sector can be transmitted only once in the sensing process, and the overhead of the air interface signaling can be reduced.

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

Therefore, in the application, the first device can autonomously find the transmission opportunity to send the first request frame, for example, the first device can send the first request frame through mechanisms such as preemption and the like, thereby realizing flexible perception.

With reference to the first aspect, in certain implementations of the first aspect, the method further includes: if the first equipment does not send the first request frame after measuring the first frame for the first time, discarding the measurement result; if the first device does not receive the first response frame after measuring the first frame for the second time, discarding the measurement result; if the first device does not receive the first response frame after the first request frame is sent and the first device has not measured the first frame, the first request frame is retransmitted.

Thus, in the present application, the first device may discard the measurement result when the measurement result is stale or resend the first request frame when the measurement result has not yet failed, so as to achieve reliable sensing.

With reference to the first aspect, in certain implementations of the first aspect, in a 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 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 medium access control MAC header, a physical layer PHY header, or a capability unit.

Therefore, in the application, the first information can be carried in various modes, so that the flexibility of perception is improved.

With reference to the first aspect, in certain implementations of the first aspect, the second information is generated according to at least one of: a session token corresponding to the first frame, a transmission time stamp corresponding to the first frame, a packet number corresponding to the first frame, a segment number corresponding to the first frame, a sequence number corresponding to the first frame, a communication identifier corresponding to the first frame, and a frame body corresponding to the first frame.

Therefore, in the application, the identification of the sending sector can be indicated in various modes, for example, the identification carries BRP frame and/or data frame of the sending sector to indicate, various types of frames and time periods can be supported, and flexible perception can be realized.

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 station; or the first equipment is a station, and the second equipment is an access node; alternatively, the first device and the second device are different sites; or the first device and the second device are different access points.

In a second aspect, a method of implementing awareness is provided, the method being executable by a second device or a chip in the second device, the method comprising: the second device sends first information to the first device, wherein the first information is used for indicating the second device to be capable of providing 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; the second device sends a first frame to the first device, the first frame being used to generate a measurement result, the information of the first sending sector and the measurement result being used to generate a perception result.

With reference to the second aspect, in certain implementations of the second aspect, the first information is further used to indicate that the second device is capable of providing location information of the second device.

With reference to the second aspect, in certain implementations of the second aspect, the method further includes: the second device receives the first request frame; the second device transmits 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.

With reference to the second aspect, in certain implementations of the second aspect, the first response frame further includes location information of the second device.

With reference to the second aspect, in certain implementations of the second aspect, the second information indicates an identity of the first transmission sector.

With reference to the second aspect, in certain implementations of the second aspect, the method further includes: the second device receives a second request frame, wherein the second request frame is used for requesting information of a second transmitting sector; the second device transmits information of a second transmission sector, which is a transmission sector of the second device including the first transmission sector, in response to the second request frame.

With reference to the second aspect, in certain implementations of the second aspect, the method further includes: the second device obtains a transmission resource used for transmitting the first response frame, where the transmission resource is a resource allocated to the second device, or the transmission resource is not a resource allocated to the second device.

With reference to the second aspect, in certain implementations of the second aspect, in a 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 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 medium access control MAC header, a physical layer PHY header, or a capability unit.

With reference to the second aspect, in certain implementations of the second aspect, the second information is generated according to at least one of: a session token corresponding to the first frame, a transmission time stamp corresponding to the first frame, a packet number corresponding to the first frame, a segment number corresponding to the first frame, a sequence number corresponding to the first frame, a communication identifier corresponding to the first frame, and a frame body corresponding to the first frame.

With reference to the second aspect, in some implementations of the second aspect, the first device is an access node and the second device is a station; or the first equipment is a station, and the second equipment is an access node; alternatively, the first 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 apparatus is provided, where the communication apparatus includes a transceiver unit and a processing unit, where the transceiver unit is configured to receive first information from a second device, where the first information is configured to indicate that the second device is capable of providing information of a first transmission sector corresponding to a first frame, and the first frame is a beam refinement protocol BRP frame and/or a data frame; the processing unit is configured to measure a 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.

With reference to the third aspect, in some implementations of the third aspect, the first information is further used to indicate that the second device is capable of providing location information of the second device.

With reference to 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, the first response frame including second information, the second information indicating information of the first transmission sector.

With reference to the third aspect, in some implementations of the third aspect, the first response frame further includes location information of the second device.

With reference to the third aspect, in some implementations of the third aspect, the processing unit is further configured to generate a correspondence between information of a second transmission sector and an identifier of the second transmission sector, where the second transmission sector is a transmission sector of the second device, and the second transmission sector includes the first transmission sector; the processing unit is further configured to determine information of the first transmitting sector according to the second information and the correspondence, where the second information is used to indicate an identifier of the first transmitting sector.

With reference to the third aspect, in some implementations of the third aspect, the transceiver unit is further configured to send a second request frame, where the second request frame is used to request information of the second sending sector; the transceiver unit is further configured to receive information of a second transmission sector in response to 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 transmitting the first request frame, where the transmission resource is a resource allocated to the first device, or the transmission resource is not a resource allocated to the first device.

With reference to the third aspect, in some implementations of the third aspect, the processing unit is further configured to discard the measurement result when, after the first device measures the first frame, a time corresponding to the transmission resource is greater than or equal to a first threshold from a time when the first device measures the first frame.

With reference to the third aspect, in some implementations of the third aspect, if the processing unit does not send the first request frame after measuring the first frame for the first time through the transceiver unit, the processing unit is further configured to discard the measurement result; if the processing unit does not receive the first response frame after the first frame is measured, the transceiver unit is further configured to discard the measurement result; if the transceiver unit does not receive the first response frame after the transceiver unit transmits the first request frame and the processing unit has not measured the first frame, the transceiver unit is further configured to retransmit the first request frame.

With reference to the third aspect, in certain implementations of the third aspect, in a 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 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 medium access control MAC header, a physical layer PHY header, or a capability unit.

With reference to the third aspect, in certain implementations of the third aspect, the second information is generated according to at least one of: a session token corresponding to the first frame, a transmission time stamp corresponding to the first frame, a packet number corresponding to the first frame, a segment number corresponding to the first frame, a sequence number corresponding to the first frame, a communication identifier corresponding to the first frame, and a frame body corresponding to the first frame.

With reference to the third aspect, in some implementations of the third aspect, the first device is an access node and the second device is a station; or the first equipment is a station, and the second equipment is an access node; alternatively, the first 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 apparatus is provided, where the communication apparatus includes a transceiver unit and a processing unit, where the transceiver unit is configured to send first information, where the first information is configured to indicate that a second device can provide information of a first transmission sector corresponding to a first frame, and the first frame is a beam refinement protocol BRP frame and/or a data frame; the transceiver unit is configured to transmit a first frame to the first device, the first frame being configured to generate a measurement result, the information of the first transmission sector and the measurement result being configured to generate a perception result.

With reference to the fourth aspect, in some implementations of the fourth aspect, the first information is further used to indicate that the second device is capable of providing 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 a first request frame; the transceiver unit is further configured to transmit a first response frame in response to the first request frame, the first response frame including second information, the second information indicating information of the first transmission sector.

With reference to the fourth aspect, in some implementations of the fourth aspect, the first response frame further includes location information of the second device.

With reference to the fourth aspect, in some implementations of the fourth aspect, the second information is used to indicate an identity of the first transmission sector.

With reference to the fourth aspect, in some implementations of the fourth aspect, the transceiver unit is further configured to receive a second request frame, where the second request frame is used to request information of the second transmitting sector; the transceiver unit is further configured to transmit information of a second transmission sector in response to the second request frame, the second transmission sector being a transmission sector of the second device, the second transmission sector including the first transmission sector.

With reference to 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 is not a resource allocated to the second device.

With reference to the fourth aspect, in some implementations of the fourth aspect, in a 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 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 medium access control MAC header, a physical layer PHY header, or a capability unit.

With reference to the fourth aspect, in certain implementations of the fourth aspect, the second information is generated according to at least one of: a session token corresponding to the first frame, a transmission time stamp corresponding to the first frame, a packet number corresponding to the first frame, a segment number corresponding to the first frame, a sequence number corresponding to the first frame, a communication identifier corresponding to the first frame, and a frame body corresponding to the first frame.

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

In a fifth aspect, a communication device is provided, which is configured to perform the method provided in the first aspect. In particular, the communication device may comprise means and/or modules, such as a processing unit and/or a communication unit, for performing the method of the first aspect or any of the above-mentioned implementations of the first aspect.

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

In a sixth aspect, a communication device is provided, which is configured to perform the method provided in the second aspect. In particular, the communication device may comprise means and/or modules, such as a processing unit and/or a communication unit, for performing the method provided by the second aspect or any of the implementations of the second aspect.

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

In a seventh aspect, a communications apparatus is provided comprising a processor, optionally further comprising a memory for controlling a transceiver to transceive signals, the memory for storing a computer program, the processor for calling and running the computer program from the memory, such that the transmitting apparatus performs the method of the first aspect or any of the possible implementations of the first aspect.

Optionally, the processor is one or more, and the memory is one or more.

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

Optionally, the first device further comprises a transceiver, which may be in particular a transmitter (transmitter) and a receiver (receiver).

In an eighth aspect, there is provided a communications apparatus comprising a processor, optionally further comprising a memory, the processor for controlling a transceiver to transceive signals, the memory for storing a computer program, the processor for calling and running the computer program from the memory to cause the second device to perform the method of the second aspect or any one of the possible implementations of the second aspect.

Optionally, the processor is one or more, and the memory is one or more.

Optionally, the second device further comprises a transceiver, which may be in particular a transmitter (transmitter) and a receiver (receiver).

In a ninth aspect, there is provided a communication system comprising: a first device for performing the method of the first aspect or any one of the possible implementations of the first aspect; and a second device for performing the method of the second aspect or any of the possible implementations of the second aspect.

In a tenth aspect, there is provided a computer readable storage medium storing a computer program or code which, when run on a computer, causes the computer to perform the method of the first aspect or any of the possible implementations of the first aspect or the method of the second aspect or any of the possible implementations of the second aspect.

In an eleventh aspect, a chip is provided, comprising at least one processor coupled to a memory for storing a computer program, the processor being adapted to invoke and run the computer program from the memory, to cause a transmitting device, in which the chip system is installed, to perform the method of the first aspect or any of the possible implementations of the first aspect, and to cause a receiving device, in which the chip system is installed, to perform the method of the second aspect or any of the possible implementations of the second aspect.

The chip may include an input circuit or interface for transmitting information or data, and an output circuit or interface for receiving information or data, among other things.

In a twelfth aspect, there is provided a computer program product comprising: computer program code which, when run by a transmitting device, performs the method of the first aspect or any one of the possible implementations of the first aspect; and performing the method of the second aspect or any one of the possible implementations of the second aspect when the computer program code is run by the receiving device.

Drawings

FIG. 1 is a schematic diagram of an application scenario to which embodiments of the present application are applicable;

FIG. 2 is a schematic block diagram of a BI;

FIG. 3 is a schematic diagram of a beam training;

FIG. 4 is a schematic diagram of a beam tracking;

fig. 5 is a schematic diagram of a signal transmission between an AP and a STA;

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

fig. 7 is a schematic diagram of first information carried in a BRP request domain according to an embodiment of the present application;

fig. 8 is a schematic diagram of first information carried in a DMG beam refinement unit according to an embodiment of the present application;

FIG. 9 is a schematic diagram of a first information carrier in EDMG BRP domain according to an embodiment of the present application;

FIG. 10 is a schematic diagram of a first information carrying EDMG BRP request unit according to an embodiment of the present application;

fig. 11 is a schematic diagram of a MAC header carrying first information in a data frame according to an embodiment of the present application;

fig. 12 is a schematic diagram of a PHY header carrying first information in a data frame according to an embodiment of the present application;

FIG. 13 is another exemplary illustration of a PHY header carrying first information in a data frame according to an embodiment of the present application;

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

fig. 15 is a schematic diagram of an information unit including number information of a second transmission sector according to an embodiment of the present application;

fig. 16 is a schematic diagram of an information unit including description information of a second transmission sector according to an embodiment of the present application;

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

fig. 18 is a schematic diagram of an information unit of second information generated based on a transmission time stamp according to an embodiment of the present application;

fig. 19 is a schematic diagram of an information unit including description information of a first transmission sector in a first response frame according to an embodiment of the present application;

Fig. 20 is a schematic diagram of another first response frame provided in an embodiment of the present application, including description information of a first transmission sector;

fig. 21 to 23 are schematic diagrams of possible communication devices according to an embodiment of the present application.

Detailed Description

The technical scheme of the application will be described below with reference to the accompanying drawings.

The technical scheme provided by the embodiment of the application can be suitable for a wireless local area network (wireless local area network, WLAN) scene, for example, can be suitable for an IEEE 802.11 system standard, such as an 802.11a/b/g standard, an 802.11bf standard, an 802.11ad standard, an 802.11ay standard or a standard of the next generation. 802.11bf includes two broad classes of standards, low frequency (sub 7 GHz) and high frequency (60 GHz). The sub7GHz implementation mode mainly depends on the standards of 802.11ac, 802.11ax, 802.11be, the next generation and the like, and the 60GHz implementation mode mainly depends on the standards of 802.11ad, 802.11ay, the next generation and the like, wherein the 802.11ad can also be called as a directional multi-gigabit (directional multi-gigabit, DMG) standard, and the 802.11ay can also be called as an enhanced directional multi-gigabit (enhanced directional multi-gigabit, EDMG) standard. The technical scheme of the embodiment of the application mainly focuses on the realization of 802.11bf on high frequency (802.11 ad, 802.11 ay), but the related technical principle can be expanded to low frequency (802.11 ac, 802.11ax, 802.11 be).

Although embodiments of the present application are described primarily with respect to deploying WLAN networks, and in particular networks employing the IEEE 802.11 system standard, it will be readily appreciated by those skilled in the art that aspects of embodiments of the present application may be extended to other networks employing various standards or protocols, such as bluetooth (blue), high performance wireless local area networks (high performance radio local area network, HIPERLAN) and wide area networks (wide area network, WAN), personal area networks (personal area network, PAN) or other now known or later developed networks. Accordingly, the various aspects provided by embodiments of the present application may be applicable to any suitable wireless network, regardless of the coverage area and wireless access protocol used.

The technical scheme of the embodiment of the application can also be applied to various communication systems, such as: WLAN communication systems, wireless fidelity (wireless fidelity, wi-Fi) systems, global system for mobile communications (global system for mobile communication, GSM) systems, code division multiple access (code division multiple access, CDMA) systems, wideband code division multiple access (wideband code division multiple access, WCDMA) systems, general packet radio service (general packet radio service, GPRS), long term evolution (long term evolution, LTE) systems, LTE frequency division duplex (frequency division duplex, FDD) systems, LTE time division duplex (time division duplex, TDD), universal mobile communication systems (universal mobile telecommunication system, UMTS), worldwide interoperability for microwave access (worldwide interoperability for microwave access, wiMAX) communication systems, fifth generation (5th generation,5G) systems or new wireless (NR) systems, future sixth generation (6th generation,6G) systems, wireless local area network systems such as internet of things (internet of things, ioT) networks or the internet of vehicles (V2X), and the like.

The above-mentioned communication system to which the present application is applied is merely illustrative, and the communication system to which the present application is applied is not limited thereto, and is generally described herein, and will not be described in detail.

A terminal in an embodiment of the present application may refer to a User Equipment (UE), an access terminal, a subscriber unit, a subscriber station, a mobile station, a remote terminal, a mobile device, a user terminal, a wireless communication device, a user agent, or a user equipment. The terminal may also be a cellular telephone, a cordless telephone, a session initiation protocol (session initiation protocol, SIP) phone, a wireless local loop (wireless local loop, WLL) station, a personal digital assistant (personal digital assistant, PDA), a handheld device with wireless communication capabilities, a computing device or other processing device connected to a wireless modem, a vehicle-mounted device, a wearable device, a terminal device in a 5G network, a terminal device in a future 6G network or a terminal device in a public land mobile network (public land mobile network, PLMN), etc., as embodiments of the application are not limited in this respect.

The network device in the embodiment of the present application may be a device for communicating with a terminal, where the network device may be a base station (base transceiver station, BTS) in a global system for mobile communications (global system of mobile communication, GSM) or code division multiple access (code division multiple access, CDMA), a base station (nodeB, NB) in a wideband code division multiple access (wideband code division multiple access, WCDMA) system, an evolved base station (evolutional nodeB, eNB or eNodeB) in an LTE system, a wireless controller in a cloud wireless access network (cloud radio access network, CRAN) scenario, or the network device may be a relay station, an access point, a vehicle device, a wearable device, a network device in a 5G network, a network device in a future 6G network, or a network device in a PLMN network, etc., and the embodiment of the present application is not limited.

Fig. 1 is a schematic diagram of an application scenario provided by the present application. In fig. 1, an AP (such as AP110 shown in fig. 1) may be a communication server, a router, or a switch, or any of the above network devices, and an STA (such as STA121 and STA122 shown in fig. 1) may be a mobile phone, a computer, or any of the above terminals. One or more STAs in the station device may communicate after establishing an association with one or more APs in the access point device. For example, the AP110 may communicate after establishing an association with the STA121, and the AP110 may communicate after establishing an association with the STA 122.

It should be understood that communication system 100 in fig. 1 is merely an example. The technical scheme of the embodiment of the application is not only suitable for the communication between the AP and one or more STAs, but also suitable for the mutual communication between the APs and the mutual communication between the STAs.

The access point may be an access point of a terminal (such as a mobile phone) entering a wired (or wireless) network, and is mainly deployed in a home, a building and a park, where a typical coverage radius is several tens meters to hundreds meters, and of course, the access point may also be deployed outdoors. The access point is equivalent to a bridge connecting a wired network and a wireless network, and is mainly used for connecting all wireless network clients together and then connecting the wireless network into an Ethernet. In particular, the access point may be a terminal device (e.g., a cell phone) or a network device (e.g., a router) with a Wi-Fi chip. Alternatively, the access point may be a device supporting WLAN standards of the 802.11 family of standards. For example, the access point may support the 802.11bf standard, the 802.11ad standard, the 802.11ay standard, or some future Wi-Fi standard.

In an embodiment of the present application, the access point may also be an Access Point (AP) or a personal basic service set control point (personal basic service set control point, PCP). In the following description of the present application, an access point refers to either an AP or a PCP, unless specifically stated otherwise.

The station may be a wireless communication chip, a wireless sensor, a wireless communication terminal, or the like, and may also be referred to as a user. For example, the website may be a mobile phone supporting Wi-Fi communication function, a tablet computer supporting Wi-Fi communication function, a set top box supporting Wi-Fi communication function, a smart television supporting Wi-Fi communication function, a smart wearable device supporting Wi-Fi communication function, a vehicle communication device supporting Wi-Fi communication function, a computer supporting Wi-Fi communication function, and so on. Alternatively, the station may be a device supporting WLAN standards of the 802.11 family of standards. For example, the station may also support the 802.11bf standard, the 802.11ad standard, the 802.11ay standard, or some future Wi-Fi standard.

For example, the access points and sites may be devices applied in the internet of things, internet of things nodes, sensors, etc. in the internet of things (internet of things, ioT), smart cameras in smart homes, smart remote controls, smart water meter meters, sensors in smart cities, etc.

The wireless communication system provided by the embodiment of the application may be a WLAN or a cellular network, and the method may be implemented by a communication device in the wireless communication system or a chip or a processor in the communication device, where the communication device may be a wireless communication device supporting parallel transmission of multiple links, for example, called a multi-link device (multi-link device) or a multi-band device (multi-band device). A multi-link device has higher transmission efficiency and higher throughput than a device that supports only a single link transmission. The multilink device includes one or more affiliated stations STA (affiliated STA), which are logical stations that can operate on a link. The station to which the station belongs may be an AP or a non-AP STA. The multi-link device with the affiliated station being an AP may be referred to as a multi-link AP or multi-link AP device or AP multi-link device (AP multi-link device), and the multi-link device with the affiliated station being a non-AP STA may be referred to as a multi-link STA or multi-link STA device or STA multi-link device (STA multi-link device).

First, in order to make the method of the embodiment of the present application easier to understand, some concepts involved in the embodiment of the present application are described below.

The beam in the embodiments of the present application may be a wide beam, a narrow beam, or other types of beams.

1. Beam (beam).

The beam may be embodied in the NR protocol as a spatial filter (spatial domain filter), or spatial filter, or spatial parameter (spatial parameter). The beam used to transmit the signal may be referred to as a transmit beam (transmission beam, tx beam), may be referred to as a spatial transmit filter (spatial domain transmission filter) or spatial transmit parameters (spatial transmission parameter); the beam used to receive the signal may be referred to as a receive beam (Rx beam), may be referred to as a spatial receive filter (spatial domain receive filter) or spatial receive parameters (spatial reception parameter).

The transmit beam may refer to a distribution of signal strengths formed in spatially different directions after signals are transmitted through the antennas, and the receive beam may refer to a distribution of signal strengths of wireless signals received from the antennas in spatially different directions.

Furthermore, the beam may be a wide beam, or a narrow beam, or other type of beam. The technique of forming the beam may be a beamforming technique or other technique. The beamforming technique may specifically be a digital beamforming technique, an analog beamforming technique, or a hybrid digital/analog beamforming technique, etc.

The beam generally corresponds to the resource, for example, when the beam measurement is performed, the network device sends different resources through different beams, the terminal feeds back the measured resource quality, and the network device can learn the quality of the corresponding beam.

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

Alternatively, a plurality of beams having the same or similar communication characteristics are regarded as one beam. One beam may be transmitted through one or more antenna ports for transmitting data channels, control channels, and sounding signals, etc. One or more antenna ports forming a beam may also be considered as a set of antenna ports.

In beam measurement, each beam of the network device corresponds to a resource, and thus the beam to which the resource corresponds may be indicated by an index or identification of the resource.

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

2. Sector (sector)

The sector may be a directional beam, the transmitting sector (transmission sector, TX sector) may correspond to a directional transmit beam, and the receiving sector may correspond to a directional receive beam (RX sector).

3. Beacon Interval (BI)

FIG. 2 shows a schematic block diagram of a BI. Referring to fig. 2, in 802.11ad/ay, the timeline may be divided into a plurality of BI's, each including a beacon head indication (beacon header indication, BHI) and a data transmission interval (data transmission interval, DTI). Among them, the BHI includes a beacon transmission interval (beacon transmission interval, BTI), an association-beamforming training (association beamforming training, a-BFT), and an announcement transmission interval (announcement transmission interval, ATI). The DTI includes several subintervals, which are divided into contention access intervals (contention based access period, CBAP) based on the form of access (e.g., CBAP1 and CBAP2 shown in fig. 2) and service intervals (SP) (e.g., SP1 and SP2 shown in fig. 2).

The PCP/AP sends a plurality of beacon frames (beacon) according to the sector numbers in the BTI for scanning the downlink sectors; the A-BFT is used for STA association and uplink sector scanning; the ATI is used for the PCP/AP to poll the STAs for buffered data information and to allocate resources in the data transmission interval (data transmission interval, DTI) to the STAs. The whole DTI is divided into several sub-intervals, which are divided into contention-based access intervals (contention based access period, CBAP) and service intervals (SP) according to the access form, the latter being scheduled transmissions without contention.

4. Beam training (beam forming)

The AP and STA may find a better communication link through beam training. Beam training may be largely divided into two phases, sector-level sweep (SLS) and beam refinement protocol (beam refinement protocol, BRP). In some application scenarios, beam training may also include an enhanced beam training phase, e.g., a beam refinement protocol transmit sector sweep (beam refinement protocol transmit sector sweep, BRP TXSS) phase. The process of beam training is described below in connection with fig. 3.

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

Fig. 3 (a) shows a schematic diagram of an SLS phase, which is mainly in the BTI and a-BFT shown in fig. 2, and which can complete the training of the transmitting sector. In the SLS phase, three sub-phases of an initiating end sector sweep (initiator sector sweep, ISS), a responding end sector sweep (responder sector sweep, RSS) and a sector sweep Feedback (sector sweep Feedback, SSW-Feedback) may be specifically included, and optionally, a sector sweep acknowledgement (SSW-ACK) sub-phase may be further included, so as to establish a basic link between STA1 and STA 2. Specifically, in the ISS stage, STA1 performs training of a transmission sector of STA1 by transmitting a plurality of Sector Sweep (SSW) frames, or a plurality of Short sector sweep (Short SSW) frames, or a beacon frame including an SSW field. Similarly, STA2 performs training of the transmitting sector of STA2 by transmitting SSW frames or Short SSW frames in the RSS phase. The results of the above-described ISS and RSS phases are acknowledged in the SLS by the SSW-feed back phase and the SSW-ACK phase, and it is determined whether beam optimization is to be performed. Further, in the SLS phase, STA1 may obtain an optimal transmission sector to transmit to STA2, and STA2 may also obtain an optimal transmission sector to transmit to STA 1. The training of the transmitting sector between the STA1 and the STA2 can be completed through the above process.

The BRP phase is mainly in DTI shown in fig. 2, and this phase can complete the training of the receiving sector. In the BRP phase, four sub-phases of BRP setup (BRP setup), multi-sector identity probing (multiple sector identifier detection, MID), beam Combining (BC), and beam refinement negotiation (beam refinement transactions) may be specifically included. In a BRP setup sub-phase (not shown), STA1 and STA2 may exchange capability information about beam training and perform parameter configuration about beam training. In MID sub-phase, see fig. 3 (b), STA1 may transmit BRP frames using a quasi-omni antenna, upon which STA2 trains the directional reception sector. Similarly, STA2 may transmit BRP frames using a quasi-omni antenna, upon which STA1 trains a directional receiving sector. In the BC sub-phase, referring to fig. 3 (c), STA1 may select a partial directional transmission sector obtained in the SLS phase to pair with STA2 transmission and reception sectors. Illustratively, STA1 may use the beam pair with the highest signal-to-noise ratio (signal to noise ratio, SNR) as the best beam pair for the best communication link, and further use the beam pair for data transmission. In the beam refinement negotiation sub-phase, see fig. 3 (d), STA1 and STA2 may explore more transmit sector and receive sector pairs through this sub-phase. Illustratively, STA1 and the receiving device transmit BRP protocol data units (PLCP protocol data unit, PPDUs) in which the end of a BRP frame carries a TRN (TRN) field. For example, a directed multiple gigabit (directional multi-gigabit) device may support the transmission of BRP-TX PPDU and BRP-RX PPDU, and an Enhanced DMG (EDMG) device may support the transmission of BRP-TX PPDU, BRP-RX PPDU and BRP-RX/TX PPDU. The end of the BRP frame in the BRP-TX PPDU carries a TRN-T field, so that the BRP frame can be used to train the transmitting sector of STA 1. The end of the BRP frame in the BRP-RX PPDU carries the TRN-R field, and the BRP frame can then be used to train the receiving sector of STA 2. Carried at the end of the BRP frame in the BRP-RX/TX PPDU is a TRN-R/T field, and the BRP frame can be used to train both the transmitting sector of STA1 and the receiving sector of STA 2. The training of the transmitting sector and the receiving sector between the STA1 and the STA2 can be completed through the above process.

The BRP TXSS phase may be primarily in the DTI phase shown in fig. 2, where the EDMG device may be trained for enhanced beams. In the BRP TXSS phase, a setup phase, an initiator BRP TXSS phase (initiator BRP TXSS phase), and a response phase (acknowledgement phase) may be specifically included, and optionally, a responder receive training phase (receive training phase of the responder), a responder BRP TXSS phase (responder BRP TXSS phase), and an initiator receive training phase (receive training phase of the initiator) may be further included. Referring to fig. 3 (e), in a setup phase (setup phase), the originating and receiving ends may interact with phases included in the subsequent BRP TXSS and related configuration parameters for the BRP TXSS. In the initiator BRP TXSS phase (initiator BRP TXSS phase), the initiator may perform enhanced beam training of the initiator's transmit sector by transmitting a BRP-TX PPDU. For example, the initiator may initiate at least one round of training, in the same round of training, the initiator may continuously transmit a plurality of BRP-TX PPDUs using different DMG antennas, and in different rounds of training, the process of transmitting the plurality of BRP-TX PPDUs by the initiator may be the same. In addition, in the training process of the same round, the response end can use the same DMG antenna to receive a plurality of BRP-TX PPDUs from different DMG antennas of the initiating end. In the training process of different rounds, the response end can use different DMG antennas to receive the BRP-TX PPDU. And in the BRP TXSS stage (initiator BRP TXSS phase) of the initiating terminal, the responding terminal can acquire the optimal transmitting sector of the initiating terminal and load the related information of the optimal transmitting sector in the BRP frame to feed back to the initiating terminal. Optionally, in a receiving training phase (receive training phase of the responder) of the responding end, the initiating end may send the BRP-RX PPDU to the responding end using the best sending sector obtained before, and the responding end uses an antenna corresponding to the best sending sector to receive, so as to train the receiving sector.

Similar to the initiator BRP TXSS phase, in the responder BRP TXSS phase (not shown), the responder may initiate enhanced beam training of the transmitting sector of the responder by transmitting a BRP-TX PPDU. For example, the responding end may initiate at least one round of training, and a specific procedure may be referred to above in connection with the BRP TXSS phase of the initiating end. In addition, similar to the receive training phase of the responding end, the receive training phase (receive training phase of the initiator) of the optionally present initiating end (not shown) may train the receiving sector.

In the reply phase (acknowledgement phase), the initiator may send a BRP frame carrying reply information, identifying BRP TXSS to end training.

5. Beam tracking (beam tracking)

Beam tracking may track the link quality of a communication link. Illustratively, when the SNR of the communication link is below a particular threshold, the communication link may not be suitable for data transmission, and the initiating device may add a TRN field at the end of the data frame to perform beam tracking.

Referring to fig. 4, fig. 4 shows a schematic diagram of beam tracking. The STA1 adds a TRN-T field at the end of the data frame, and after receiving the data frame to which the TRN-T field is added, the STA2 may add a BRP frame at the end of an acknowledgement (Ack) frame, so as to feed back the result of beam tracking to the initiator, and the initiator may select an optimal beam pair to transmit the remaining data. The meaning of the TRN-T field may be referred to in the above description, and will not be described herein.

6. Passive sensing (passive sensing)

The (transmission of the device, frame or frame) is not specifically designed (or specifically designed) for perception and other devices may use the information about the (transmission of the device, frame or frame).

Referring to fig. 5, fig. 5 shows a schematic diagram of transmission signals between an AP and an STA. Taking the example that the STA transmits the uplink signal to the AP, the uplink signal transmitted by the STA may reach the AP through the link (1), or may reach the AP after being reflected by the object through the link (2). Since the signal is an electromagnetic wave, the environment on the transmission path can be perceived by processing the parameters of the transmission wave and the reception wave of the signal, that is, information such as the position distribution of the object, the shape of the object, or the movement track of the object on the transmission path can be obtained. Thus, in the present application, sensing may be achieved with devices, frames or transmissions of frames that are not specifically designed for sensing. The sensing method proposed by the present application will be described in detail first.

Fig. 6 shows a schematic flow chart of a sensing method provided by an embodiment of the 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 for indicating that the second device can provide information of a first sending sector corresponding to a first frame, the first frame is a BRP frame and/or a data frame, and the information of the first sending sector is used for generating a perception result.

Alternatively, the first information indicates that the first frame and/or the second device support passive sensing (passive sensing).

Optionally, the first information is further used to indicate that the second device is able to increase the location information of the second device. Alternatively, the first information is further used to indicate that the second device is capable of providing location information of the device transmitting the first frame. The location information may be physical location information of the device, for example, location coordinates, relative location coordinates, or the like, or may be an identifier of the device, which may indirectly indicate location information of the device, which is not particularly limited in the present application.

The BRP frames and data frames may be BRP frames and data frames at any stage in the communication process of the first device and the second device, and illustratively, the BRP frames may be BRP frames in the beam training process described above, such as BRP-TX PPDUs in BRP stages, BRP-RX PPDUs, BRP-TX PPDUs in BRP TXSS stages, and BRP-RX PPDUs. Furthermore, the present application can realize passive sensing using BRP frames and data frames existing in each stage and in the uplink and downlink directions.

The information of the first transmitting sector used to generate the sensing result may refer to: the information of the first transmission sector may be used to generate a perception result for a surrounding environment on a transmission path of the first frame, and the perception result may include information that can be obtained by perception with a radar, such as object position distribution information, object action trace information, and object feature information on the transmission path.

Illustratively, the information of the first transmission sector may include at least one of the following information: the direction information of the first transmission sector, the beam width of the first transmission sector, the sector gain (sector gain) of the first transmission sector, or the identification information of the first transmission sector. The direction information of the first transmitting sector may include a sector azimuth (sector azimuth) and/or a sector elevation (sector elevation), the beam width of the first transmitting sector may include an azimuth beam width (azimuth beamwidth) and/or an elevation beam width (elevation beamwidth), and the identification information of the first transmitting sector may include a sector identification (sector id) and/or a DMG antenna identification (DMG antenna id). Further, the sensing result can be obtained by processing the information of the first transmission 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. Alternatively, the first device and the second device are different access points. Alternatively, the first device and the second device are different sites.

Therefore, in the embodiment of the application, the BRP frame and the sending sector information corresponding to the data frame which exist in the uplink and the downlink in a plurality of time periods are utilized for sensing, so that the sensing flexibility can be improved.

It should be appreciated that when both BRP frames and data frames support passive sensing, the first information may indicate that both BRP frames and data frames are available for sensing.

The second device may send the first information to the first device in a number of ways, or in a combination of ways. In one implementation, where 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: a BRP request field (BRP request field), an EDMG BRP field, an EDMG BRP request unit, a DMG beam refinement unit (DMG beam refinement element), or a capability unit (capabilities element); in the case that 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 field, 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: a media access control (medium access control, MAC) header (MAC header), a physical layer (PHY) header (PHY header), or a capability unit. The manner in which the second device transmits the first information to the first device may be related to the type of the first frame or the type of the second device, and a detailed description may be made with reference to the following descriptions of fig. 7 to 14.

S620, the second device sends the first frame to the first device, and 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. The measurement may include a result that the direction, time, intensity, etc. of receiving the first frame can be used for perception.

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

It will be appreciated that the order in which the second device sends the first information and the first frame to the first device is not limited in any way by the present application. Illustratively, the first information may be carried in the first frame, or the first information may use reserved bits in BRP frames and/or data frames, and further the step S610 and the step S620 may be combined into one step. The second device may also send the first information to the first device either before or after sending the first frame. The first information may be carried in a defined capability unit and indicate a period or type corresponding to a first frame supporting passive sensing, or the first information may be carried in a BRP frame (or a data frame) before or after the first frame, and indicate that the first frame is a BRP frame (or a data frame) after or before the BRP frame (or the data frame) carrying the first information.

The first device knows, based on the first information, that the first frame and/or the second device supports passive sensing, then the first device can initiate a request frame for obtaining information for the perceived transmission sector. It should be noted that, when the first device and the second device are respectively STA and AP or respectively AP and STA, the first device may directly send a request frame to the second device, and when the first device and the second device are respectively different STA, 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 information of a sending sector for sensing to the second device. The first device and the second device are described below as an example for STA and AP, respectively.

In one possible implementation, a first device may obtain information for a second transmission sector of a second device, the second transmission sector including a first transmission sector. Wherein the second transmitting sector may be all transmitting sectors of the second device. The first device knows that the first frame and/or the second device supports passive sensing based on the first information, information of all transmitting sectors of the second device can be stored locally, and then when passive sensing is performed on the first frame, the first device can find out information of a first transmitting sector corresponding to the first frame from the locally stored information of the second transmitting sector.

The first device may illustratively have information of the second transmission sector locally or, if the first device receives information of the second transmission sector of the second device during communication, the first device may save it. For example, the first device knows, based on the first information, that the first frame and/or the second device supports passive sensing, and even if the first device has not triggered sensing service, the first device may save information of the second transmission sector to the local during communication, so as to perform sensing service use later.

In another possible implementation, the first device may request the second device for information of the second transmission sector, in which case the method may further include steps S630 to S640. It should be noted that steps S630 to S640 may be performed before step S620 or may be performed after step S620, and further, the first device may send the second request frame during any period during which the second request frame may be sent (for example, an ATI or DTI period), and the second device may send the second response frame during any period during which the second response frame may be sent (for example, an ATI or DTI period), which is not 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 for requesting information of a second transmission sector. I.e. the first device may actively send a second request frame (e.g. a kind of information request information request frame) to the second device requesting all sector information of the second device.

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

The second device may send a second response frame (e.g., an information response information response) frame to the first device in response to the second request frame, the second response frame carrying information for the second transmitting sector.

For example, the information of the second transmission sector may include information of the number of the second transmission sectors. For example, the second device may define a DMG sector information element (DMG sector info element) that includes quantity information that may represent all sectors (all sectors), or that may represent a specific value of all or part of the number of transmitting sectors (num TX sectors). Wherein the second device may learn the quantity information during the association or SLS phase, e.g., the second device may learn the quantity information through all sector fields (total sectors in ISS field) in the ISS in a sector sweep feedback field (sector sweepfeedback field) in a DMG beacon frame or SSW frame. In addition, the information of the second transmitting sector may further 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 description unit (DMG sector descriptor element). The information of the specific exemplary second transmission sector can be found in the description of fig. 14 to 15 later.

The first device may generate a correspondence of information of the second transmission sector and an identification of the second transmission sector based on the information of the second transmission sector.

The correspondence may be, for example, a sector look-up table (sector look-up table) of the second transmitting sector. After the first device obtains the information of the second transmitting sector, the first device may 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 transmitting sector of the second device, and when the first device requests the second device for the information of the first transmitting sector corresponding to the first frame, the second device can only transmit the identification of the first transmitting sector to the first device, and the first device obtains the information of the first transmitting sector through local inquiry, so that transmission cost is reduced.

After the first device knows that the first frame and/or the second device supports passive sensing based on the first information, the first device can request related information of a first transmitting 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 resources for the first device for transmitting the first request frame, the method further comprises step S650.

Optionally, S650, the first device acquires a transmission resource for transmitting 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 transmitting other information, and the first device may transmit the first request frame using the resource. Alternatively, the transmission resource may not be a resource allocated to the first device, for example, the first device may transmit the first request frame using a free resource, or may also transmit the first request frame in a preemptive resource.

The transmission resource may be a resource in the DTI phase, the first device may transmit the first request frame in an allocated slot in which the first frame is located, e.g., in a TXOP of an SP allocation period or a CBAP allocation period, or the first device may transmit the first request frame using other slots.

In one possible implementation, if the first device does not send the first request frame after measuring the first frame for a first time, the measurement may be discarded. The first time may be preset or may be indicated by the second device, which is not particularly limited in the present application. If the first device does not determine the transmission resource to transmit the first request frame within the predetermined time, or the time corresponding to the transmission resource determined by the first device to be able to transmit the first request frame exceeds the predetermined time, and the first device has generated the measurement result of the first frame, the first device may discard the measurement result. In this case, the first device may be considered to have outdated the measurement result without having 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 or after measuring the first frame. When the first device is to transmit a first request frame to the second device before measuring the first frame, the first request frame may be further used for information indicating a transmission sector of a frame of a later period of time; when the first device transmits a first request frame to the second device after measuring the first frame, the first request frame may also be used for information indicating a transmission sector of a frame of a transmission sector of a previous period of time.

Optionally, the first request frame may also indicate the type of the first frame, and the second device may further know which type of frame to return to the information of the transmitting sector.

Optionally, S670, the second device determines a transmission resource to transmit the first response frame.

The manner in which the second device determines the transmission resources for transmitting the first response frame may be similar to the manner in which the first device determines the transmission resources for transmitting the first request frame, which will not be described in detail herein for the sake of brevity.

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 the first response frame from the second device in response to the first request frame.

The first response frame includes second information indicating information of the first transmission sector.

If the method does not perform steps S630 through S640, i.e., the first device does not have information of the second transmission sector locally, the first response frame may include the second information and description information of the first transmission sector. Exemplary illustrations of the first response frame including description information of the first transmission sector can be seen from the description of fig. 19 and 20 later.

If the method performs steps S630 to S640, that is, the first device locally stores the information of the second transmitting sector, the first response frame may include the second information and the identifier of the first transmitting sector, and then the first device may perform table lookup based on the second information and the identifier of the first transmitting sector to obtain the description information of the first transmitting sector.

In a first possible implementation, when the first frame is a BRP frame, the second information may be generated based on a dialog token (dialog token) of the first frame. The first device may obtain the identification of the first transmitting sector through a session password of the first frame. It should be noted that, the session password may be used to uniquely mark a BRP frame, where the BRP frame is carried in a BRP PPDU, where the BRP PPDU carries a TRN field, and each TRN subfield in the TRN field may represent a sector, so that the first device may index to the BRP PPDU where the BRP frame is located through the session password, and further find the corresponding first transmitting sector through the TRN field in the BRP pdu. The design of a specific exemplary second response message may be found in the description of fig. 17 below.

In a second possible implementation, when the first frame is a BRP frame, a data frame, or other frame supporting passive perception, the second information may be generated based on a transmission timestamp (timestamp) corresponding to the first frame. The first device may obtain the identifier of the first transmitting sector through a transmission timestamp corresponding to the first frame. The transmission time stamp may indicate a frame transmitted in which time period the first frame is, and further the first device may index to a corresponding PPDU based on the transmission time stamp in the second information, and further obtain the identifier of the corresponding first transmitting sector through a TRN field in the PPDU. The design of a specific exemplary second response message may be found in the description of fig. 18 below.

In a third possible implementation manner, when the first frame is a data frame, and the data frame is cryptographically protected in a CCMP manner, the second information may be generated based on a Packet Number (PN) corresponding to the first frame. The first device may obtain the identification of the first transmitting sector through the PN corresponding to the first frame. The CCMP is a data encryption process, which adds a CCMP header (ccmphoader) between a MAC header (MAC header) and a data frame, and the CCMP header includes the PN. The design of a specific exemplary second response message may be found in the description of fig. 17 below.

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

In a fifth possible implementation, when the first frame is a BRP frame, a data frame, or other frame supporting passive perception, the second information may be generated based on a frame body (frame body) of the first frame. For example, a PPDU count identifier may be added to the frame body, the PPDU count identifier may be used to mark the first frame, and the first device may obtain the identifier of the first transmission sector based on the second information generated by the PPDU count identifier.

In the above-mentioned modes, when the first frame is a BRP frame in the BRP TXSS phase, the second information may be marked only by a BRP-TX PPDU in one round, for example, by using a session password, a PPDU count, or marking the number of rounds, and by using the repeatability of the BRP-TX PPDU in each round, the bit consumption of the second information is reduced, that is, the consumption of resources is reduced.

The implementation manner of generating the second information may be used alone or in combination, which is not particularly limited in the present application.

In addition, it should be noted that if the first device does not receive the first response frame after the first frame is measured, the measurement result may be discarded. That is, if the first device does not receive the first response frame late after measuring the first frame, the first device may consider that the measurement result has become outdated, and the first device may discard the measurement result. If the first device does not receive the first response frame after the first request frame is transmitted and the first device has not measured the first frame, the first request frame may be retransmitted. That is, if the first device does not receive the first response frame late before the measurement, the first device may resend the first request frame once again. It should be appreciated that 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, a first timing value from measurement of the first frame to transmission of the first request frame, and a second timing value from transmission of the first request frame to reception of the first response frame may be preset, and then the first time in the embodiment of the present application may be the first timing value, the second time may be a sum of the first timing value and the second timing value, and the third time may be the second timing value.

The sensing method provided by the embodiment of the application is described above with reference to the flowchart, and the frame structure designs of the first information, the first request frame, the first response frame (including the second information), the second request frame and the second response frame provided by the embodiment of the application are described below.

In the description of the method embodiment above, the first information may be carried in BRP frames, and for ease of understanding of the embodiment of the present application, table 1 and table 2 show two BRP frame activation field format (BRP frame action field format) definitions.

Table 1:

table 2:

	information name
		1	Catalog (category)
2	Unprotected DMG behavior (unprotected DMG action)
		3	Dialog token (dialog token)
4	BRP request domain (BRP request field)
		5	EDMG BRP domain
6	Short BRP Feedback field(optional)

The following describes a manner of carrying the first information with reference to fig. 7 to 13.

Fig. 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 a BRP request field. Illustratively, referring to fig. 7, the BRP request field may include 13 information fields: 1. L-RX; 2. a TX-TRN request (TX-TRN-REQ); 3. MID request (MID-REQ); 4. BC request (BC-REQ); 5. MID authorization (MID-Grant); 6. BC Grant (BC-Grant); 7. Chan-FBCK-CAP; 8. transmitting Sector identification (TX Sector ID); 9. other AIDs (other_aid); 10. TX DMG antenna ID (TX DMG Antenna ID); 11. EDMG-SHORT-BRP (11 ay); 12. EDMG-SHORT-FBCK (11 ay); 13. DMG perception; 14. first information; 15. reserved field (reserved).

The specific meaning of the information fields 1 to 12 may be referred to the descriptions of IEEE 802.11ad and IEEE 802.11ay, and the description of the information field 13 with respect to the first information may be referred to the description of step S610 in fig. 6, which is not repeated here.

It will be appreciated that the present application does not make any limitation on the number and location of bits used for the first information, and that the first information may use any one or more reserved bits in the BRP request field, and fig. 7 is an example in which the first information occupies the 30 th bit in the BRP request field.

Fig. 8 shows a schematic diagram of the first information carried by the DMG beam refinement unit (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 a DMG beam refinement unit. Illustratively, referring to fig. 8, the DMG beam refinement unit may include 27 information fields: 1. unit identification (Element ID); 2. length (Length); 3. an Initiator (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 (MID Extension); 13. a capability request (Capability Request); 14. first information; 15. reservation (reserved); 16. RS-FBCK MSB (11 ay); 17. BS-FBCK Antenna ID MSB (11 ay); 18. MSB measurement number (Number of measurements MSB (11 ay)); 19. EDMG expansion flag (EDMG Extension Flag (11 ay)); 20. EDMG channel measurement presence (EDMG channel measurement present (11 ay)); 21. sector sweep frame type (Sector sweep frame type (11 ay)); 22. DBF FBCK REQ; 23. channel aggregate request (Channel aggregation requested (11 ay)); 24. channel aggregation on line (Channel aggregation on present (11 ay)); 25. BF training type (11 ay)); 26. EDMG bi-directional polarization TRN channel measurement presence (EDMG dual polarization TRN channel measurement present (11 ay)); 27. reserved (11 ay)).

The specific meaning of the information fields 1 to 13, 15 to 27 may be referred to the description of IEEE 802.11ax, ay, and the description of the information field 14 about the first information may be referred to the description of step S610 in fig. 6, which is not repeated here.

It will be appreciated that the present application does not limit the number and location of bits used for the first information, and that the first information may use any one or more reserved bits in the DMG beam refinement unit, and fig. 8 is an example of the 54 th bit in the first information, and the first information may also occupy any one or more bits in the information field 27.

Fig. 9 shows a schematic diagram of the first information bearing 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 may be carried in the EDMG BRP domain. Illustratively, referring to fig. 9, the EDMG BRP field may include 27 information fields: 1. an Initiator (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 identity (TX sector ID); 8. RS-FBCK; 9. BS-FBCK Antenna ID; 10. MID Extension (MID Extension); 11. BRP-TXSS-OK; 12. L-TX-RX; 13. requesting EDMF TRN unit P (Requested EDMG TRN-unit P); 14. request EDMF TRN unit M (Requested EDMG TRN-unit M) 15, request EDMF TRN unit N (Requested EDMG TRN-unit N); 16. BRP-TXSS; 17. TXSS initiation (TXSS-initiator); 18. TXSS-PPDUs; 19. sector sweep frame type (Sector sweep frame type (11 ay)); 20. TXSS repetition (TXSS-repeat); 21. TXSS-MIMO; 22. BRP CDOWN; 23. TX radomes (TX antenna masks); 24. first path training (First path training); 25. a bi-directional polarization TRN (Dual polarization TRN); 26. first information; 27. reserved (11 ay)).

The specific meaning of the information fields 1 to 25 and 27 may be referred to the descriptions of IEEE 802.11ad and IEEE 802.11ay, and the description of the information field 26 with respect to the first information may be referred to the description of step S610 in fig. 6, which is not repeated here.

It will be appreciated that the present application does not limit the number and location of bits used for the first information, and that the first information may use any one or more reserved bits in the EDMG BRP field, and fig. 9 is an example of the 85 th bit in the first information, and the first information may also occupy any one or more bits in the information field 27.

Fig. 10 shows a schematic diagram of an EDMG BRP request unit comprising first information.

When the first frame is a BPR frame, the first frame is transmitted through a BRP-TX PPDU, the first information may be carried in an EDMG BRP request (EDMG BRP request) field. Illustratively, referring to fig. 10, the EDMG BRP request unit may include 24 information fields: 1. unit identification (element ID); 2. length (length); 3. a unit identification extension (element ID extension); 4. L-RX; 5. L-TX-RX; 6. TX sector identity (TX sector ID); 7. request EDMG TRN-unit P (requested EDMG TRN-unit P); 8. request EDMG TRN-unit M (requested EDMG TRN-unit M); 9. request EDMG TRN-unit N (requested EDMG TRN-unit N); 10. BRP-TXSS; 11. TXSS initiator (TXSS initiator); 12. TXSS-PPDUs; 13. TXSS-repeat (TXSS-repeat); 14. TXSS-MIMO; 15. BPR CDOWN; 16. TX radomes (TX antenna masks); 17. return delay (combback delay); 18. first path training (First path training); 19. a bi-directional polarization TRN (Dual polarization TRN); 20. a digital BF request (digital BF request); 21. feedback type (feedback type); 22. NC markers (NC index); 23. first information; 24. reserved (11 ay)).

The specific meaning of the information fields 1 to 22 may be referred to the descriptions of IEEE 802.11ad and IEEE 802.11ay, and the description of the information field 26 with respect to the first information may be referred to the description of step S610 in fig. 6, which is not repeated here.

It will be appreciated that the present application does not limit the number and location of bits used for the first information, and that the first information may use any one or more reserved bits in the EDMG BRP request unit, and fig. 10 is an example of the 91 st bit in the first information, and the first information may also occupy any one or more bits in the information field 24.

Fig. 11 shows a schematic diagram of a MAC header with first information carried in a data frame.

When the first frame is a data frame, the first information may be carried in a MAC header, for example, in a quality of service (quality of service, qoS) control field (QoS control field) of the MAC header. Illustratively, when the classification of data is QoS data class, referring to (a) of fig. 11, the QoS control field may include 9 information fields: 1. TID; 2. EOSP; 3. ack policy indication (Ack policy indicator); 4. a-MSD U presence (a-MSD U present); 5. a-MSD U type (A-MSD U type); 6. RDG/more PPDU; 7. cache AC (buffered AC); 8. first information; 9. AC constraint (AC constraint). When the classification of data is QoS null, see (b) of fig. 11, the QoS control field may include 9 information fields: 1. TID; 2. EOSP; 3. ack policy indication (Ack policy indicator); 4. first information; 5. reservation (reserved); 6. reservation (reserved); 7. RDG/more PPDU; 8. cache AC (buffered AC); 8. reservation (reserved); 9. AC constraint (AC constraint).

The specific meaning of the other information fields except the first information may be referred to the descriptions of IEEE 802.11ad and IEEE 802.11ay, and the description of the first information may be referred to the description of step S610 in fig. 6, which is not repeated here.

It will be appreciated that the present application does not make any restrictions on the number and location of bits used for the first information, which may use any one or more reserved bits in the QoS control domain.

Fig. 12 shows a schematic diagram of a PHY header with first information carried in a data frame.

When the first frame is a data frame and the device transmitting the first frame is a DMG device, the first information may be carried in the PHY header. Illustratively, in control mode (control mode), the first information may be carried in a DMG control mode header field (DMG control mode header fields), see fig. 12 (a), which may include 8 information fields: 1. differential encoder initialization (differential encoder initialization, DEI); 2. scrambler initialization (scrambler initialization); 3. length (length); 4. PPDU type (PPDU type); 5. training length (training length); 6. round-trip time (Turnaround); 7. first information; 8. reservation (reserved); 9. HCS. In Single Carrier (SC) mode, the first information may be carried in a DMG SC mode header field (DMG SC mode header fields), see fig. 12 (b), which may include 7 information fields (partial information field starting from bit 39): 1. last RSSI; 2. round-trip time (Turnaround); 3. an extended SC MCS indication (Extended SC MCS indication); 4. pi/2-8-PSK application (pi/2-8-PSK applied); 5. first information; 6. reservation (reserved); 7. HCS.

It will be appreciated that the present application does not make any restrictions on the number and location of bits used for the first information, which may use any one or more reserved bits in the PHY header.

Fig. 13 shows another schematic diagram of a PHY header with first information carried in a data frame.

When the first frame is a data frame and the device transmitting the first frame is an EDMG device, the first information may be carried in the PHY header. Illustratively, in the control mode, the first information may be carried on an EDMG Header a of the EDMG control PPDU (EDMG control PPDU) (including headers A1 and A2, hereinafter A2 being exemplified), see fig. 13 (a), and the EDMG Header A2 may include the following 8 information fields: 1. TRN aggregation (TRN aggregation); 2. number of transmit chains (number of transmit chains); 3. DMG TRN; 4. first path training (first path training); 5. bi-directional polarization TRN training (dual polarization TRN training); 6. first information; 7. reservation (reserved); 8. CRC. In either the SC mode or the OFDM mode, the first information may be carried in the EDMG SC/OFDM EDMG Header A, see (b) of fig. 13, and the EDMG-Header-a field of the EDMG SC/OFDM PPDU may include at least the following 7 information fields: 1. a superposition code application (superimposed code applied); 2. pi/2-8-PSK application (pi/2-8-PSK applied); 3. a transmission chain number (number of transmit chains); 4. DMG TRN; 5. first information; 6. reservation (reserved); 7. CRC.

Fig. 14 shows a schematic diagram of a capability unit comprising first information.

The second device may send the capability unit including the first information to the first device in any one interaction procedure, for example, the first device may send the capability unit to the first device when any one handshake interaction in one BI, such as ATI, BRP setup sub-phase, DTI, etc. Illustratively, referring to fig. 14, the capability unit may include 4 information fields as follows: 1. unit identification (element ID); 2. unit length (element length); 3. a unit identification extension (element ID extension); 4. first information. Optionally, the first information may include an interval type (interval type) for indicating a period corresponding to the first frame, such as a BTI, a-BFT or DTI period, and a frame type (frame type) for indicating a frame type of the first frame, such as a BRP frame, a data frame or an SSW frame. Illustratively, 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 reserved field of 2 bits may be left in the information field.

It will be appreciated that the present application does not make any restrictions on the number and location of bits used for the first information.

The first information carrying manner is schematically described above, and the second transmission sector information carrying manner is described below.

To further facilitate an understanding of embodiments of the present application, table 3 is an example of 4 interval types that are provided by embodiments of the present application, using 2 bits to indicate support for passive sensing.

Table 3:

value taking	Interval type
		0	BTI
1	A-BFT
		2	DTI
3	Reserved

Table 4 is an example of a frame type information field provided by an embodiment of the present application that supports 9 frame types that are passively known using 4 bits for indication.

Table 4:

fig. 15 shows a schematic diagram of an information unit including the number information of the second transmission sector.

The information unit may be a DMG sector information unit (DMG sector info element), which may include, for example, the following 6 information fields: 1. unit identification (element ID); 2. unit length (element length); 3. a unit identification extension (element ID extension); 4. sector number (num sectors); 5. sector information control (sector info control); 6. LCI. When the number information indicates all sectors, referring to (a) of fig. 15, the sector information control information field may use 1 byte and include the following 3 subfields: 1. all sectors (all sectors); 2. LCI presence (LCI present); 3. reserved field (reserved). The all sector subfield may represent all sectors using 1 bit. When the number information indicates a specific value of the second transmission sector, referring to (b) of fig. 15, the sector information control information field may use 2 bytes and include 3 subfields as follows: 1. number of transmit sectors (num TX sectors); 2. LCI presence (LCI present); 3. reserved field (reserved). The number of transmission sectors subfield may indicate the number of second transmission sectors using 9 bits.

It will be appreciated that the present application does not make any restrictions on the number and location of bits used for 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 description unit (DMG sector descriptor element) that illustratively includes the following 4 information fields: 1. unit identification (element ID); 2. unit length (element length); 3. a unit identification extension (element ID extension); 4. sector descriptions 1 through N (sector descriptor 1-sector descriptor N), N being a positive integer. Each sector description information field may use 8 bytes and include the following 8 subfields: 1. sector azimuth (sector azimuth); 2. sector elevation (sector elevation); 3. azimuth beam width (azimuth beamwidth); 4. elevation beamwidth (elevation beamwidth); 5. sector gain (sector ID); 6. sector identification (sector id); 7. DMG antenna identification (DMG ant id); 8. reserved field (reserved).

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

The second information may be carried using two units, for example, a DMG sector mark information unit (DMG sector index info element) and a DMG sector mark list unit (DMG sector index list element), respectively. Wherein a DMG sector mark information element may be used to provide control parameters and a DMG sector list element may be used to provide an identification of a sector. Illustratively, referring to fig. 17 (a), the DMG sector mark information unit may include the following 5 information fields: 1. unit identification (element ID); 2. unit length (element length); 3. a unit identification extension (element ID extension); 4. sector mark number (num sector indices); 5. sector mark information control (sector index info control). The number of sector marks field may use 1 byte to indicate the number of all transmission sectors corresponding to the first frame, or may indicate the number of transmission sectors carried by one DMG sector mark information unit (i.e., the number of sector marks fields in the DMG sector list unit).

The sector mark information control information field may use 3 bytes and may include the following 6 information fields: 1. number of transmissions (num transmissions); 2. next (next); 3. a transmission type (transmission type); 4. -starting transmission of the tag (start transmission index); 5. reserved field (reserved). Wherein, the information field 1 may use 6 bits to represent the number of PPDUs for passive sensing, the information field 2 may use one bit to represent whether the information carried by the DMG sector list unit is for the next passive sensing measurement result or for the previous passive sensing measurement result, and the information field 3 may use 4 bits to represent the type of frame for passive sensing. The information field 4 may indicate from which frame the frame for the passive sensing measurement starts, thereby enabling an improved accuracy of indicating the frame for the passive sensing measurement.

It should be noted that, if the first frame is a BRP frame in the BRP TXSS phase, for example, the first frame is a BRP TXSS shown in fig. 3, the information field 1, that is, the transmission number may be determined based on the TXSS-PPDUs information field in the EDMG BRP request unit in the BRP frame (see fig. 10). If the BRP TXSS process includes N rounds of training processes, each round includes M BRP-TX PPDUs, N times M BRP-TX PPDUs may be used for passive sensing, the value of the transmission number may also be the total number of BRP-TX PPDUs in multiple rounds of training in the BRP TXSS, that is, the product of N and M, or the value of the transmission number may be the number M of BRP-TX PPDUs in one round of training in the BRP TXSS, and further the first device may determine the number of PPDUs for passive sensing through the number of BRP-TX PPDUs included in each round.

Illustratively, referring to fig. 17 (b), the DMG sector mark list unit may include the following 6 information fields: 1. unit identification (element ID); 2. unit length (element length); 3. a unit identification extension (element ID extension); 4. a transmission marker (transmission index); 5. transmitting the number of sectors per transmission (num TX sector per transmission); 6. sector labels 1 to Q (sector index 1-Q), Q being a positive integer; 7. 8 times bit stuffing. Wherein the transmission flag information field may indicate which frame the sector flag field described by the DMG sector flag list unit belongs to using 1 byte. If the information field 2 of the sector flag information control information field indicates that the information carried by the DMG sector flag list unit is a passive sensing measurement result for the next time, since the passive sensing measurement result is not generated yet, even if the first device knows the frame type of the first frame, the specific configuration of the TRN field of the PPDU cannot be known, and then the number of transmission sectors per transmission field may indicate how many transmission sectors the TRN segment in one PPDU corresponds. For example, if the first device is a DMG device, when the transmission type is a BRP-RX PPDU, the value of the number of transmission sectors per transmission may be 1; when the transmission type is BRP-TX PPDU, the number of transmission sectors per transmission may represent a value of 4N, where N may be determined by a training length (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 for a previous passive sensing measurement, the DMG sector mark list unit may not include a transmit sector number information field per transmission since the first device knows the TRN field configuration of the first frame. For DMG devices, the value of the number of transmit sectors per transmission field may be determined based on a training length (training length) field in the PHY header. For an EDMG device, the value of the number of sectors transmitted per transmission field may be determined according to the EDMG TRN Length field, the EDMG TRN-Unit M field, the EDMG TRN-Unit N field, and the RX TRN-Units per Each TX TRN-Unit field in the EDMG header a. Each sector flag (sector index) is carried in a sector flag field (sector index field) and may consist of an 8-bit sector identification (sector ID) and a 3-bit DMG antenna identification (DMG Ant ID). When a DMG sector mark list unit is used to describe all sector marks used for passive aware frames (all for passive aware PPDUs), the unit may not include a transmission mark field. When a DMG sector mark list element is used to describe a sector mark corresponding to a frame for passive sensing, the element may include a transmission mark field. In addition, the information field 7 is an optional field, and when the length of the information unit is not a multiple of 8, the information field 7 may be used to fill the length of the information unit to a multiple of 8, and when the length of the information unit is a multiple of 8, the information unit may not carry the 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 be a sub-unit (sub-unit) carried on the DMG sector mark information unit. The present application does not make any particular limitation on the forms 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 number information field of the PPDUs are identical, for example, all or part of the EDMG TRN Length field, the EDMG TRN-Unit M field, the EDMG TRN-Unit N field, and the RX TRN-Units per Each TX TRN-Unit field in the EDMG header a of each PPDU are identical, then the information field 5 in fig. 17 (b) may be carried in the sector mark information control field of fig. 17 (a), and further the indication is made by one field to save signaling overhead.

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

It should be further noted that, when the first frame for passive sensing is a BRP-TX PPDU in the BRP TXSS phase, the start transmission flag information field and the transmission flag information field may only flag the BRP-TX PPDU in one round of training, and illustratively, the second device may flag the BRP-TX PPDU in one round of training based on the count of the BRP-TX PPDU in one round of training, or the second device may flag the BRP-TX PPDU in one round of training in what number of rounds, and the first device may derive information of all BRP-TX PPDUs in multiple rounds by the information of the BRP-TX PPDUs in one round. Thus, by utilizing the repeatability of each round of the BRP-TX PPDU, the bit consumption of the second information, i.e., the consumption of resources, is reduced.

The start transmission flag information field and the value of the transmission flag information field may be generated 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, the communication identifier corresponding to the first frame, or the frame body corresponding to the first frame, in a similar manner to the above, and for brevity, the description thereof will be omitted.

To further facilitate understanding of the embodiments of the present application, table 5 is an example of 13 transmission types that are provided by the embodiments of the present application, in which the transmission type information field indicates support for passive sensing using 4 bits.

Table 5:

fig. 18 shows a schematic diagram of unit information of the second information generated based on the transmission time stamp.

The second information may be carried using two units, for example, a DMG sector mark information unit (DMG sector index info element) and a DMG sector mark list unit (DMG sector index list element), respectively. Wherein a DMG sector mark information element may be used to provide control parameters and a DMG sector list element may be used to provide an identification of a sector. Illustratively, referring to fig. 18 (a), the DMG sector mark information unit may include the following 5 information fields: 1. unit identification (element ID); 2. unit length (element length); 3. a unit identification extension (element ID extension); 4. sector mark number (num sector indices); 5. sector mark information control (sector index info control). The unit identifier extension information field may use 1 byte and may represent the number of sector mark information units in a DMG sector list unit.

Wherein, the sector mark information control information field may use 10 bytes, and the information field may include the following 7 information fields: 1. number of transmissions (num transmissions); 2. next (next); 3. a transmission type (transmission type); 4. start timestamp (start timestamp); 5. an end timestamp (end timestamp); 6. reserved field (reserved). The information fields 1 to 3 may be similar to those described in fig. 18, and are not described here again for the sake of brevity. The start timestamp information field and the end timestamp information field may exist simultaneously or separately. When the start timestamp information field exists alone, it may refer to the number of transmissions (num transmissions) frames starting from the start timestamp; when the end timestamp information field exists alone, it may refer to the number of transmissions (num transmissions) frames up to the end timestamp.

Illustratively, referring to fig. 18 (b), the DMG sector mark list unit may include the following 7 information fields: 1. unit identification (element ID); 2. unit length (element length); 3. a unit identification extension (element ID extension); 4. a transmission time stamp (transmission timestamp); 5. transmitting the number of sectors per transmission (num TX sectors per transmission); 6. sector labels 1 to Q (sector index 1-Q), Q being a positive integer; 7. 8 times bit stuffing. The information fields 1 to 3, 5 to 7 may be similar to those described in fig. 17, and are not described here again for brevity. The transmission time stamp may represent a frame sent by the sector mark in the DMG sector mark list unit at a time that describes the transmission time stamp indication. 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 all sector marks used for passive sensing frames (all PPDUs used for passive sensing), the unit may not include a transmission time stamp information field. When a DMG sector mark list element is used to describe a sector mark corresponding to a frame for passive sensing, the element may include a transmission timestamp information field.

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 be a subunit (subunit) carried on the DMG sector mark information unit, which is not particularly limited in the present application.

Note that, the implementation manner of the second information shown in fig. 18 is not limited to the type of the first frame, and may be used in the case where the first frame is a BRP frame, a data frame, an SSW frame, or the like.

It should be noted that the frame formats described in fig. 17 and fig. 18 may be applied to the case where 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 for which allocation period the requested sector information is a transmitted BRP frame. For example, the allocation range field (allocation range field) may be used to indicate whether it is a previous allocation period, or a current allocation period, or a next allocation period. Wherein the different allocation periods refer to different channel access periods allocated in the same BI. In addition, the sector index (sector index) may have the following two meanings: the first, each sector flag corresponds to a sector of each TRN subfield in the TRN field. According to the 802.11ad/ay protocol definition, for a DMG device, when a BRP-TX PPDU or BRP-RX PPDU is transmitted, there may be 4N TRN subfields (N is determined by the Training Length in the PHY header); for EDMG devices, there may 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 the BRP-TX PPDU or BRP-RX/TX PPDU is transmitted; there may be 10L TRN subfields when the BRP-RX PPDU is transmitted. Second, each sector flag corresponds to a sector after each transmission sector change in the trnfield. For DMG devices, there may be 4N sector changes when sending a BRP-TX PPDU, as defined by the 802.11ad/ay protocol; for an EDMG device, there may be ML/N sector changes when the BRP-TX PPDU is transmitted (N is determined by the EDMG TRN field in EDMG Header A), where there may be ML sector changes when N=0, and L/C sector changes when the BRP-RX/TX PPDU is transmitted, where the value of C is determined by RX TRN-Units per Each TX TRN-Unit field in EDMG Header A of the BRP-RX/TX PPDU. For DMG devices and EDMG devices, when the BRP-RX PPDU is transmitted, the TRN field uses the same sector as the front pilot, data transmission direction, and is not changed. Further, when the first method is used to represent the sector flag, N number of sector flags may be used to represent a group of sectors, and when the second method is used, 1 number of sector flags may be used to represent a group of sectors, so that transmission overhead can be reduced.

Fig. 19 shows a schematic diagram of a first response frame including description information of a first transmission sector.

The description information of the first transmission sector may be carried using two units, for example, a DMG sector information unit (DMG sector info element) and a DMG sector list unit (DMG sector list element), respectively. Wherein a DMG sector information element may be used to provide control parameters and a DMG sector list element may be used to provide description information of the sectors. Illustratively, referring to fig. 19 (a), the DMG sector information unit may include the following 5 information fields: 1. unit identification (element ID); 2. unit length (element length); 3. a unit identification extension (element ID extension); 4. sector number (num sector); 5. sector information control (sector info control). The number of sectors field may use 1 byte to indicate the number of all sectors corresponding to the first frame, or may indicate the number of sectors carried by one DMF sector information unit (i.e., the number of sector fields in the DMG sector list unit).

The sector information control information field may use 3 bytes and may include the following 6 information fields: 1. number of transmissions (num transmissions); 2. next (next); 3. a transmission type (transmission type); 4. -starting transmission of the tag (start transmission index); 5. reserved field (reserved). Wherein, the information field 1 may use 6 bits to represent the number of PPDUs for passive sensing, the information field 2 may use one bit to represent whether the information carried by the DMG sector list unit is for the next passive sensing measurement result or for the previous passive sensing measurement result, and the information field 3 may use 4 bits to represent the type of frame for passive sensing. The information field 4 may indicate from which frame the frame for the passive sensing measurement starts, thereby enabling an improved accuracy of indicating the frame for the passive sensing measurement.

Illustratively, referring to fig. 19 (b), the DMG sector list unit may include the following 7 information fields: 1. unit identification (element ID); 2. unit length (element length); 3. a unit identification extension (element ID extension); 4. a transmission marker (transmission index); 5. the number of sectors (num TX sectors per transmission) is 6, the sector descriptions 1 to N (sector descriptor 1-sector descriptor N) are transmitted per transmission, and N is a positive integer; 7. 8 times bit stuffing.

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 be a subunit (subunit) carried on the DMG sector mark information unit, which is not particularly limited in the present application. Fig. 19 is a diagram showing a scenario in which the unit design shown in fig. 19 may be applied to a case in which the first device does not locally store information of the second transmission sector, unlike the unit design shown in fig. 17, the unit shown in fig. 19 may carry description information of the second transmission sector, and the meaning of other fields shown in fig. 19 may refer to the description in fig. 17, which is not repeated herein.

Fig. 20 shows a schematic diagram of another first response frame including description information of a first transmission sector.

The description information of the first transmission sector may be carried using two units, for example, a DMG sector information unit (DMG sector info element) and a DMG sector list unit (DMG sector list element), respectively. Wherein the DMG sector information element may be used to provide control parameters and the DMG sector list element may be used to provide description information of the sectors. Illustratively, referring to fig. 20 (a), the DMG sector information unit may include the following 5 information fields: 1. unit identification (element ID); 2. unit length (element length); 3. a unit identification extension (element ID extension); 4. sector number (num sector); 5. sector information control (sector info control). The unit id extension information field may use 1 byte and may represent the number of sector information units in a DMG sector list unit.

Wherein, the sector information control information field may use 10 bytes, and the information field may include the following 6 information fields: 1. number of transmissions (num transmissions); 2. next (next); 3. a transmission type (transmission type); 4. start timestamp (start timestamp); 5. an end timestamp (end timestamp); 6. reserved field (reserved). The information fields 1 to 3 may be similar to those described in fig. 17, and are not described here again for the sake of brevity. The start timestamp information field and the end timestamp information field may exist simultaneously or separately. When the start timestamp information field exists alone, it may refer to the number of transmissions (num transmissions) frames starting from the start timestamp; when the end timestamp information field exists alone, it may refer to the number of transmissions (num transmissions) frames up to the end timestamp.

Illustratively, referring to fig. 20 (b), the DMG sector list unit may include the following 7 information fields: 1. unit identification (element ID); 2. unit length (element length); 3. a unit identification extension (element ID extension); 4. a transmission time stamp (transmission timestamp); 5. the number of sectors (num TX sectors per transmission) is 6, the sector descriptions 1 to N (sector index 1-N) are sent for each transmission, and N is a positive integer; 7. 8 times bit stuffing. The information fields 1 to 3, 5 to 7 may be similar to those described in fig. 17, and are not described here again for brevity. The transmission time stamp may represent a frame sent by a sector in the DMG sector list unit at a time indicated by the transmission time stamp. 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 all sectors used for the passive sensing frame (all PPDUs used for the passive sensing), the unit may not include the transmission time stamp information field. When a DMG sector list element is used to describe a sector corresponding to a frame for passive sensing, the element may include a transmission timestamp information field.

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 be a subunit (subunit) carried on the DMG sector mark information unit, which is not particularly limited in the present application. Fig. 20 is a schematic diagram of a unit design, which is applicable to a scenario in which the first device does not locally store information of the second transmission sector, unlike the unit design shown in fig. 18, the unit shown in fig. 20 may carry description information of the second transmission sector, and the meaning of other fields shown in fig. 20 may refer to the description in fig. 18, which is not repeated herein.

In addition, in the present application, the frame formats of fig. 7 to 20 are merely examples, and the bit length and name of each information field are not limited in any way, and the design thereof should conform to the inherent usage logic, and variations thereof should not be considered to be beyond the scope of the present application.

Having described method embodiments of the present application, corresponding apparatus embodiments are described below. It is to be understood that the description of the device embodiments corresponds to the description of the method embodiments, and that parts not described in detail can therefore be seen in the preceding method embodiments.

Fig. 21 is a schematic diagram of a communication device according to an embodiment of the application. As shown in fig. 21, the apparatus 2100 may include a transceiving unit 2110 and a processing unit 2120. The transceiver unit 2110 may communicate with the outside, and the processing unit 2120 is used for data processing. The transceiving unit 2110 may also be referred to as a communication interface or transceiving unit.

In one possible design, the apparatus 2100 may implement a procedure performed by a first device corresponding to the above method embodiment, where the processing unit 2120 is configured to perform the operations related to the processing of the first device in the above method embodiment, and the transceiver unit 2110 is configured to perform the operations related to the transceiver of the first device in the above method embodiment.

Illustratively, the transceiver unit 2110 receives first information from a second device, where the first information is used to indicate that the second device can provide information of a first transmitting sector corresponding to a first frame, where the first frame is a beam refinement protocol BRP frame and/or a data frame; a processing unit 2110, configured to measure the first frame from the second device to generate a measurement result, where the information of the first transmitting sector and the measurement result are used to generate a perception result.

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

Optionally, the transceiver unit 2110 is further configured to send a first request frame; the transceiver unit 2110 is further 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 information of the first transmission sector.

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

Optionally, the processing unit 2120 is further configured to generate a correspondence between information of a second transmission sector and an identifier of the second transmission sector, where the second transmission sector is a transmission sector of the second device, and the second transmission sector includes the first transmission sector; the processing unit, 2120, is further configured to determine information of the first transmitting sector according to the second information and the correspondence, where the second information is used to indicate an identifier of the first transmitting sector.

Optionally, the transceiver unit 2110 is further configured to send a second request frame, where the second request frame is used to request information of the second sending sector; the transceiver unit 2110 is further configured to receive information of a second transmission sector in response to the second request frame.

Optionally, the processing unit 2120 is further configured to obtain a transmission resource for transmitting the first request frame, where the transmission resource is a resource allocated to the first device, or the transmission resource is not a resource allocated to the first device.

Optionally, if the processing unit 2120 does not send the first request frame for the first time after measuring the first frame, through the transceiver unit 2110, the processing unit 2120 is further configured to discard the measurement result; if the processing unit 2120 does not receive the first response frame after the first frame is measured, the transceiver unit 2110 is further configured to discard the measurement result after the second time elapses; if the transceiver unit 2110 does not receive the first response frame after the transceiver unit 2110 transmits the first request frame, and the processing unit 2120 has not measured the first frame, the transceiver unit 2110 is further configured to retransmit the first request frame.

Optionally, in the case that 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 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 medium access control MAC header, a physical layer PHY header, or a capability unit.

Optionally, the second information is generated from at least one of the following information: a session token corresponding to the first frame, a transmission time stamp corresponding to the first frame, a packet number corresponding to the first frame, a segment number corresponding to the first frame, a sequence number corresponding to the first frame, a communication identifier corresponding to the first frame, and a frame body corresponding to the first frame.

Optionally, the first device is an access node, and the second device is a station; or the first equipment is a station, and the second equipment is an access node; alternatively, the first device and the second device are different sites; or the first device and the second device are different access points.

In yet another possible design, the apparatus 2100 may implement a procedure performed by a second device in the above method embodiment, where the transceiving unit 2110 is configured to perform a transceiving operation related to the second device in the above method embodiment, and the processing unit 2120 is configured to perform a processing operation related to the second device in the above method embodiment.

Illustratively, the transceiver unit 2110 is configured to send first information, where the first information is used to indicate that the second device can provide information of a first transmission sector corresponding to a first frame, and the first frame is a beam refinement protocol BRP frame and/or a data frame; the transceiver unit 2110 is configured to transmit a first frame to the first device, where the first frame is used 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 transceiver unit 2110 is further configured to receive a first request frame; the transceiver unit 2110 is further configured to transmit a first response frame in response to the first request frame, where the first response frame includes second information, and the second information indicates information of the first transmission sector.

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

Optionally, the transceiver unit 2110 is further configured to receive a second request frame, where the second request frame is used to request information of the second transmitting sector; the transceiver unit 2110 is further configured to transmit information of a second transmission sector in response to the second request frame, where the second transmission sector is a transmission sector of the second device, and the second transmission sector includes the first transmission sector.

Optionally, the processing unit 2120 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 is not a resource allocated to the second device.

It should be appreciated that the apparatus 2100 herein is embodied in the form of functional units. The term "unit" herein may refer to an application specific integrated circuit (application specific integrated circuit, ASIC), an electronic circuit, a processor (e.g., a shared, dedicated, or group processor, etc.) and memory that execute one or more software or firmware programs, a combinational logic circuit, and/or other suitable components that support the described functionality. In an alternative example, it will be understood by those skilled in the art that the apparatus 2100 may be specifically configured to perform the flow corresponding to the first device in the foregoing method embodiment, or the apparatus 2100 may be specifically configured to perform the second device in the foregoing method embodiment, which is not described herein for avoiding repetition.

The apparatus 2100 has a function of implementing the corresponding step performed by the first device in the above method, or the apparatus 2100 has a function of implementing the corresponding step performed by the second device in the above method. The functions may be implemented by hardware, or may be implemented by hardware executing corresponding software. The hardware or software comprises one or more modules corresponding to the functions; for example, the transceiver unit may be replaced by a transceiver (e.g., a transmitting unit in the transceiver unit may be replaced by a transmitter, a receiving unit in the transceiver unit may be replaced by a receiver), and other units, such as a processing unit, etc., may be replaced by a processor, to perform the transceiver operations and related processing operations in the various method embodiments, respectively.

The transceiver unit may be a transceiver circuit (for example, may include a receiving circuit and a transmitting circuit), and the processing unit may be a processing circuit. In an embodiment of the present application, the apparatus in fig. 22 may be the second device or the first device in the foregoing embodiment, or may be a chip or a chip system, for example: system on chip (SoC). The transceiver unit may be an input/output circuit or a communication interface. The processing unit is an integrated processor or microprocessor or integrated circuit on the chip. And are not limited herein.

Fig. 22 shows a communication device 2200 provided by an embodiment of the application. The apparatus 200 includes a processor 2210 and a memory 2220. The memory 2220 is configured to store instructions, and the processor 2210 may call the instructions stored in the memory 2220 to execute a procedure corresponding to the first device or the second device in the above method embodiment.

Specifically, in one possible implementation, the memory 2220 is configured to store instructions, and the processor 2210 may call the instructions stored in the memory 2220 to execute a procedure corresponding to the first device in the above method embodiment.

Specifically, in another possible implementation manner, the memory 220 is configured to store instructions, and the processor 2210 may call the instructions stored in the memory 2220 to execute a procedure corresponding to the second device in the above method embodiment.

It should be understood that the apparatus 2200 may be embodied as the first device or the second device in the above embodiments, or may be a chip or a chip system for the first device or the second device. In particular, the apparatus 2200 may be configured to perform a procedure corresponding to the first device or the second device in the above-described method embodiment.

Alternatively, 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 information of the device type. The processor 2210 may be configured to execute instructions stored in a memory, and when the processor 2210 executes the instructions stored in the memory, the processor 2210 is configured to execute the flow of the method embodiment corresponding to the first device or the second device.

In implementation, the steps of the above method may be performed by integrated logic circuits of hardware in a processor or by instructions in the form of software. The steps of a method disclosed in connection with the embodiments of the present application may be embodied directly in a hardware processor for execution, or in a combination of hardware and software modules in the processor for execution. The software modules may be located in a random access memory, flash memory, read only memory, programmable read only memory, or electrically erasable programmable memory, registers, etc. as well known in the art. The storage medium is located in a memory, and the processor reads the information in the memory and, in combination with its hardware, performs the steps of the above method. To avoid repetition, a detailed description is not provided herein.

It should be noted that the processor in the embodiments of the present application may be an integrated circuit chip with signal processing capability. In implementation, the steps of the above method embodiments may be implemented by integrated logic circuits of hardware in a processor or instructions in software form. The processor may be a general purpose processor, a digital signal processor, an application specific integrated circuit, a field programmable gate array or other programmable logic device, a discrete gate or transistor logic device, a discrete hardware component. The processor in the embodiments of the present application may implement or execute the methods, steps and logic blocks disclosed in the embodiments of the present application. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like. The steps of the method disclosed in connection with the embodiments of the present application may be embodied directly in the execution of a hardware decoding processor, or in the execution of a combination of hardware and software modules in a decoding processor. The software modules may be located in a random access memory, flash memory, read only memory, programmable read only memory, or electrically erasable programmable memory, registers, etc. as well known in the art. The storage medium is located in a memory, and the processor reads the information in the memory and, in combination with its hardware, performs the steps of the above method.

It will be appreciated that the memory in embodiments of the application may be volatile memory or nonvolatile memory, or may include both volatile and nonvolatile memory. The nonvolatile memory may be a read-only memory (ROM), a Programmable ROM (PROM), an Erasable PROM (EPROM), an electrically Erasable EPROM (EEPROM), or a flash memory. The volatile memory may be random access memory (random access memory, RAM) which acts as an external cache. By way of example, and not limitation, many forms of RAM are available, such as Static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double data rate SDRAM (DDR SDRAM), enhanced SDRAM (ESDRAM), synchronous DRAM (SLDRAM), and direct memory bus RAM (DR RAM). It should be noted that the memory of the systems and methods described herein is intended to comprise, without being limited to, these and any other suitable types of memory.

Fig. 23 shows a communication device 2300 provided by an embodiment of the application. The apparatus 2300 includes a processing circuit 2310 and a transceiver circuit 2320. Wherein the processing circuit 2310 and the transceiver circuit 2320 communicate with each other through an internal connection path, the processing circuit 2310 is configured to execute instructions to control the transceiver circuit 2320 to transmit signals and/or receive signals.

Optionally, the apparatus 2300 may further include a storage medium 2330, where the storage medium 2330 communicates with the processing circuit 2310 and the transceiver circuit 2320 via 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 one possible implementation manner, the apparatus 2300 is configured to implement a procedure corresponding to the first device in the above method embodiment.

In another possible implementation manner, the apparatus 2300 is configured to implement a procedure corresponding to the second device in the above method embodiment.

According to a method provided by an embodiment of the present application, the present application also provides a computer program product, including: computer program code which, when run on a computer, causes the computer to perform the method of the embodiment shown in fig. 3.

According to the method provided by the embodiment of the application, the application further provides a computer readable medium, wherein the computer readable medium stores a program code, and when the program code runs on a computer, the program code causes the computer to execute the method in the embodiment shown in fig. 3.

The application further provides a system comprising one or more stations and one or more access points.

The term "at least one of … …" or "at least one of … …" herein means all or any combination of the listed items, e.g., "at least one of A, B and C," may mean: there are six cases where A alone, B alone, C alone, both A and B, both B and C, and both A, B and C. The term "at least one" as used herein means one or more. "plurality" means two or more.

It should be understood that in embodiments of the present application, "B corresponding to a" means that B is associated with a from which B may be determined. It should also be understood that determining B from a does not mean determining B from a alone, but may also determine B from a and/or other information. The terms "comprising," "including," "having," and variations thereof mean "including but not limited to," unless expressly specified otherwise.

It should also be understood that the first, second and various numbers are merely descriptive convenience and are not intended to limit the scope of embodiments of the present application in various embodiments of the present application. For example, different information is distinguished, etc.

It should also be understood that in various embodiments of the present application, "indication" may include both direct and indirect indications, as well as explicit and implicit indications. The information indicated by a certain information (for example, the first information described above) is called information to be indicated, and in a specific implementation process, there are various ways to indicate the information to be indicated, for example, but not limited to, the information to be indicated may be directly indicated, such as the information to be indicated itself or an index of the information to be indicated. The information to be indicated can also be indicated indirectly by indicating other information, wherein the other information and the information to be indicated have an association relation. 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 the specific information may also be achieved by means of a pre-agreed (e.g., protocol-specified) arrangement sequence of the respective information, thereby reducing the indication overhead to some extent.

It should also be appreciated that in various embodiments of the present application, "preconfiguration" may be implemented by pre-storing corresponding codes, tables, or other manners in which related information may be indicated in a device (e.g., a first device), and the present application is not limited to a particular implementation thereof.

Those of ordinary skill in the art will appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware, or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.

It will be clear to those skilled in the art that, for convenience and brevity of description, specific working procedures of the above-described systems, apparatuses and units may refer to corresponding procedures in the foregoing method embodiments, and are not repeated herein.

In the several embodiments provided by the present application, it should be understood that the disclosed systems, devices, and methods may be implemented in other manners. For example, the apparatus embodiments described above are merely illustrative, e.g., the division of the units is merely a logical function division, and there may be additional divisions when actually implemented, e.g., multiple units or components may be combined or integrated into another system, or some features may be omitted or not performed. Alternatively, the coupling or direct coupling or communication connection shown or discussed with each other may be an indirect coupling or communication connection via some interfaces, devices or units, which may be in electrical, mechanical or other form.

The units described as separate units may or may not be physically separate, and units shown as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

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

The functions, if implemented in the form of software functional units and sold or used as a stand-alone product, may be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application may be embodied essentially or in a part contributing to the prior art or in a part of the technical solution, in the form of a software product stored in a storage medium, comprising several instructions for causing a computer device (which may be a personal computer, a server, a network device, etc.) to perform all or part of the steps of the method according to the embodiments of the present application. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a read-only memory (ROM), a random access memory (random access memory, RAM), a magnetic disk, or an optical disk, or other various media capable of storing program codes.

The foregoing is merely illustrative of the present application, and the present application is not limited thereto, and any person skilled in the art will readily recognize that variations or substitutions are within the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

1. A method of sensing, the method comprising:

the method comprises the steps that first equipment receives first information from second equipment, wherein the first information is used for indicating the second equipment to be capable of providing 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;

the first device measures 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.

2. The method of claim 1, wherein the first information is further for indicating that the second device is capable of providing location information for the second device.

3. The method of claim 1 or 2, wherein the method further comprises:

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.

4. A method as claimed in claim 3, wherein the method further comprises:

the first device generates a corresponding relation between information of a second transmitting sector and an identifier of the second transmitting sector, wherein the second transmitting sector is a transmitting sector of the second device, and the second transmitting sector comprises the first transmitting sector;

and the first device determines the information of the first sending sector according to the second information and the corresponding relation, wherein the second information indicates the identification of the first sending sector.

5. The method of claim 4, wherein the method further comprises:

the first device sends a second request frame, wherein the second request frame is used for requesting information of the second sending sector;

the first device receives information of the second transmission sector in response to the second request frame.

6. The method of any one of claims 1 to 5, wherein the method further comprises:

The first device obtains a transmission resource for transmitting the first request frame, where the transmission resource is a resource allocated to the first device, or the transmission resource is not a resource allocated to the first device.

7. The method of any one of claims 3 to 6, wherein the method further comprises:

discarding the measurement result if the first device does not transmit the first request frame after measuring the first frame for a first time;

discarding the measurement result if the first device does not receive the first response frame after measuring the first frame for a second time;

and if the first device does not receive the first response frame after the first request frame is sent and the first device does not measure the first frame, retransmitting the first request frame.

8. The method according to any one of claim 1 to 7, wherein,

in the case that 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 request unit, DMG beam refinement unit or capability unit;

In the case that 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.

9. The method of claims 1 to 8, wherein the second information is generated from at least one of: the method comprises the steps of a session token corresponding to a first frame, a transmission time stamp corresponding to the first frame, a packet number corresponding to the first frame, a segment number corresponding to the first frame, a sequence number corresponding to the first frame, a communication identifier corresponding to the first frame and a frame main body corresponding to the first frame.

10. The method of any of claims 1 to 9, wherein the first device is an access node and the second device is a station; or the first device is a station, and the second device is an access node; or the first device and the second device are different sites; or the first device and the second device are different access points.

11. A method of sensing, the method comprising:

the second device sends first information to the first 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;

The second device sends the first frame to the first device, the first frame is used for generating a measurement result, and the information of the first sending sector and the measurement result are used for generating a perception result.

12. The method of claim 11, wherein the first information is further used to indicate that the second device is capable of providing location information for the second device.

13. The method of claim 11 or 12, wherein the method further comprises:

the second device receives a first request frame;

the second device transmits 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.

14. The method of any of claims 11 to 13, wherein the second information indicates an identity of the first transmission sector.

15. The method of any one of claims 11 to 14, wherein the method further comprises:

the second device receives a second request frame, where the second request frame is used to request information of the second transmitting sector;

the second device transmits information of a second transmission sector in response to the second request frame, the second transmission sector being a transmission sector of the second device, the second transmission sector including the first transmission sector.

16. The method of claims 12 to 15, wherein the method further comprises:

the second device obtains 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 is not a resource allocated to the second device.

17. The method of any of claims 11 to 16, wherein, 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 request unit, DMG beam refinement unit or capability unit;

18. The method of any of claims 11 to 17, wherein the second information is generated from at least one of: the method comprises the steps of a session token corresponding to a first frame, a transmission time stamp corresponding to the first frame, a packet number corresponding to the first frame, a segment number corresponding to the first frame, a sequence number corresponding to the first frame, a communication identifier corresponding to the first frame and a frame main body corresponding to the first frame.

19. A method as claimed in any one of claims 11 to 18, wherein the first device is an access node and the second device is a station; or the first device is a station, and the second device is an access node; or the first device and the second device are different sites; or the first device and the second device are different access points.

20. A communication device comprising means for performing the method of any one of claims 1 to 10 or means for performing the method of any one of claims 11 to 19.

21. A communication device comprising a processor and interface circuitry for receiving computer code or instructions and transmitting to the processor, the processor executing the computer code or instructions, the method of any of claims 1 to 11 being performed, or the method of any of claims 11 to 19 being performed.

22. A communication device comprising at least one processor coupled to at least one memory, the at least one processor configured to execute a computer program or instructions stored in the at least one memory, the method of any one of claims 1 to 10 being performed, or the method of any one of claims 11 to 19 being performed.

23. A computer readable storage medium having stored therein computer instructions which, when run on a computer, perform the method of any one of claims 1 to 10 or perform the method of any one of claims 11 to 19.