CN115515174A - Method, equipment and storage medium for carrying out wireless sensing process by multiple parties - Google Patents
Method, equipment and storage medium for carrying out wireless sensing process by multiple parties Download PDFInfo
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- CN115515174A CN115515174A CN202110629941.1A CN202110629941A CN115515174A CN 115515174 A CN115515174 A CN 115515174A CN 202110629941 A CN202110629941 A CN 202110629941A CN 115515174 A CN115515174 A CN 115515174A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
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Abstract
The present application relates to the field of wireless communication technologies, and in particular, to a method, a device, and a storage medium for performing a wireless sensing process by multiple parties, where the method includes: the initiating device sends a first action frame, wherein the first action frame is used for requesting a plurality of candidate responding devices to participate in a wireless perception process; the first action frame includes a device address parameter RA indicating reception of the first action frame and a parameter response info indicating each candidate responding device information element; the initiating device receives the second action frame, and takes a Status code value in the second action frame as a candidate response device which agrees to execute the wireless sensing process as a response device; the second action frame comprises a parameter Status code which represents the response result of the candidate response equipment to the first action frame; and the initiating device and the responding device carry out wireless perception measurement according to the Common info and the Role in the response info. The design of the one-to-many negotiation process and the negotiation signaling reduces signaling overhead in the sensing negotiation process, and effectively saves wireless resources.
Description
Technical Field
The present application relates to the field of wireless communication technologies, and in particular, to a method, a device, and a storage medium for performing a wireless sensing process by multiple parties.
Background
The WLAN Sensing technology is a new technology, and can realize motion detection, gesture recognition and biological feature measurement by using the existing Wi-Fi signals based on the existing Wi-Fi networks and equipment. In WLAN Sensing, changes in the environment caused by the motion of objects, pets and people are detected by using CSI-based or Radar-based approaches without requiring the detected object to wear any equipment.
Through the implementation of the WLAN sending, the method can provide more intelligent and richer application in the fields of intelligent home, intrusion detection, medical care, intelligent remote nursing and the like.
Disclosure of Invention
If there may be multiple responding devices participating in a wireless sensing process, the initiating device negotiates with each responding device, and when there are many participating devices, a large amount of signaling overhead is needed, and many wireless resources are consumed. An object of the embodiments of the present application is to provide a method, a device, and a storage medium for performing a wireless sensing process in multiple parties, and provide a design of a one-to-many negotiation process and a negotiation signaling, so as to reduce signaling overhead in a sensing negotiation process and effectively save wireless resources.
In a first aspect, a method provided in an embodiment of the present application includes:
the initiating device sends a first action frame, wherein the first action frame is used for requesting a plurality of candidate responding devices to participate in a wireless perception process; the first action frame includes a device address parameter RA indicating reception of the first action frame and a parameter response info indicating each candidate responding device information element; the parameter response info comprises a parameter Common info representing information Common to a plurality of candidate responding apparatuses and a parameter response N info representing information specific to the candidate responding apparatuses; the parameter Response N info comprises an Address or identification parameter Address representing candidate Response equipment, a Role parameter Role representing the candidate Response equipment in a wireless sensing process and a parameter Response RU representing a resource for sending a Response message, and RA is set as a broadcast Address;
the initiating device receives a second action frame, and takes a Status code value in the second action frame as a candidate response device which agrees to execute the wireless sensing process as a response device; the second action frame comprises a parameter Status code which represents the response result of the candidate response equipment to the first action frame;
the initiating device and the responding device perform wireless perception measurement according to the Common info parameter and the Role parameter.
Preferably, the parameter Common info includes the following parameters:
the method comprises the steps of a parameter SDP sending start time representing the sending start time of a wireless sensing data packet, a parameter SDP duration representing the sending time of the wireless sensing data packet, a parameter SDP interval representing the sending interval of the wireless sensing data packet, a parameter Frequency band representing the sending Frequency band of the wireless sensing data packet, a parameter Bandwidth representing the sending Bandwidth of the wireless sensing data packet, a parameter Number of antenna representing the sending or/and receiving use Number of the wireless sensing data packet, a parameter Report mode representing a measurement Report mode and a parameter result type representing the type of a measurement Report result.
Preferably, the initiating device and the responding device execute the wireless sensing process according to the Common info parameter and the Role parameter, and the method comprises the following steps:
if the initiating device serves as a wireless sensing signal sender, sending a wireless sensing signal according to the parameter Common info; the response equipment is used as a wireless sensing signal receiving party, starts to receive the wireless sensing signal according to the SDP sending start time, and sends a measurement Report to the initiating equipment according to the Report mode and the result type.
Preferably, the initiating device and the responding device execute the wireless sensing process according to the Common info parameter and the Role parameter, and the method comprises the following steps:
if the response equipment is used as a wireless sensing signal sender, sending a wireless sensing signal according to the parameter Common info; the initiating device receives and measures the wireless sensing signal.
Preferably, the first Action Frame includes a parameter Frame body representing the content of the Frame body, and the parameter Frame body includes a Category of the Frame, a wireless Sensing process Frame subcategory WLAN Sensing Action, a wireless Sensing process identification Sensing session ID, and information Sensing dependent profile corresponding to each subcategory.
Preferably, said Sensing dependency profile comprises said parameter response info.
Preferably, when the value of Category represents wireless Sensing, the WLAN Sensing Action in the first Action frame is indicated as Sensing session request, and the WLAN Sensing Action in the second Action frame is indicated as Sensing session response; a WLAN Sensing Action indication in a third Action frame carrying the measurement report is a Sensing session report; and if the initiating equipment needs to finish the ongoing wireless Sensing process, sending a fourth Action frame to the responding equipment, wherein the WLAN Sensing Action in the fourth Action frame indicates Sensing session relay.
Preferably, the Sensing dependent profile in the third action frame includes a parameter CSI matrix representing a channel state information value or a parameter BF SNR representing a beamforming signal-to-noise ratio or a parameter Doppler representing a Doppler shift.
Preferably, the Sensing dependency profile in the fourth action frame includes a parameter Reason code indicating a Reason for ending the wireless Sensing process.
Preferably, when the value of Category indicates wireless Sensing and the WLAN Sensing Action in the first Action frame indicates Sensing session confirm, the initiating device sends a fifth Action frame to the responding device after receiving the second Action frame and taking the Status code value in the second Action frame as a candidate responding device that agrees to execute the wireless Sensing process as the responding device, where the Sensing dependency profile in the fifth Action frame includes a parameter Status code, and the Status code value is used to indicate whether the wireless Sensing process is successfully established.
Preferably, if the initiating device is a network access device, selecting a device with wireless sensing capability from the terminal device connected with the initiating device as a response device, and executing a wireless sensing process together; if the initiating device is a terminal device, selecting a network access device or other terminal devices with wireless sensing capability as response devices, and executing a wireless sensing process together.
Preferably, if the initiating device is a terminal device, when selecting a network access device or another terminal device with wireless sensing capability as a responding device, before the initiating device sends a first action frame, the method includes the steps of:
candidate responding devices are determined.
Preferably, the determining candidate responding devices comprises the steps of:
and measuring adjacent terminal equipment, obtaining Received Signal Strength Indication (RSSI) of the adjacent terminal equipment, and if the value of the RSSI is greater than a preset perception process signal strength threshold value T _ sending, using the terminal equipment as candidate response equipment.
Preferably, the determining candidate responding devices comprises the steps of:
the initiating device sends a sending discovery request message to the network access device, wherein the sending discovery request message comprises the address of the candidate responding device and the address of the initiating device, and the network access device sends the sending discovery request message to the candidate responding device;
the candidate response equipment receives the sending discovery request message, decides whether the wireless sensing process can be executed according to the self capacity, and sends the sending discovery response message to the initiating equipment according to the address of the initiating equipment in the sending discovery request message if the wireless sensing process can be executed;
and the initiating equipment modifies the candidate responding equipment according to the received sending discovery response message, keeps the equipment corresponding to the received sending discovery response message in the candidate responding equipment, and deletes the equipment corresponding to the equipment which does not receive the sending discovery response message from the candidate responding equipment.
Preferably, the candidate responding device sends the second action frame to the initiating device according to the resource information indicated by the parameter Response RU.
Preferably, the parameter Response RU setting mode includes:
setting a parameter Response RU value as a scale factor, indicating an interval time value, representing that a different interval time value is set for each candidate Response device, and sending a Response message according to the received interval time value after each candidate Response device receives the first action frame;
or the parameter Response RU value is set to be RU number, the resource number is indicated, the information in the time domain or/and the frequency domain corresponding to each resource number is represented, and each candidate Response device uses different resource blocks to send Response messages.
A method for a plurality of parties to conduct a wireless-aware process, comprising:
receiving a first action frame by a candidate response device, wherein the first action frame is used for requesting a plurality of candidate response devices to participate in a wireless perception process by an initiating device; the first action frame comprises a device address parameter RA indicating the reception of the first action frame and a parameter response info indicating each candidate responding device information element; the parameter response info comprises a parameter Common info representing information Common to a plurality of candidate responding apparatuses and a parameter response N info representing information specific to the candidate responding apparatuses; the parameter Response N info comprises an Address or identification parameter Address representing candidate Response equipment, a Role parameter Role representing the candidate Response equipment in a wireless sensing process and a parameter Response RU representing a resource for sending a Response message, and RA is set as a broadcast Address;
the candidate Response equipment judges whether the Address or the identification of the candidate Response equipment is the Address or the identification indicated by the parameter Address, if so, the candidate Response equipment sets a parameter status code value to indicate that the execution of the wireless sensing process is approved or not, and sends a second action frame to the initiating equipment according to the resource indicated by the Response RU, wherein the second action frame comprises the parameter status code;
and the candidate responding device which agrees to execute the wireless perception process and the initiating device perform wireless perception measurement according to the Common info parameter and the Role parameter.
Preferably, the parameter Response RU setting manner includes:
setting a parameter Response RU value as a scale factor, indicating an interval time value, representing that a different interval time value is set for each candidate Response device, and after each candidate Response device receives the first action frame, sending a Response message according to the received interval time value;
or the parameter Response RU value is set to be RU number, the resource number is indicated, the information in the time domain or/and the frequency domain corresponding to each resource number is represented, and each candidate Response device uses different resource blocks to send the Response message.
In a second aspect, an apparatus provided in an embodiment of the present application includes:
the first communication module is used for sending a first action frame, and the first action frame is used for requesting a plurality of candidate response devices to participate in a wireless perception process; the first action frame comprises a device address parameter RA indicating the reception of the first action frame and a parameter response info indicating each candidate responding device information element; the parameter response info includes a parameter Common info representing Common information of a plurality of candidate responding apparatuses and a parameter response N info representing candidate responding apparatus specific information; the parameter Response N info comprises an Address or identification parameter Address representing candidate Response equipment, a Role parameter Role representing the candidate Response equipment in a wireless sensing process and a parameter Response RU representing a resource for sending a Response message, and RA is set as a broadcast Address;
the communication module II is used for receiving a second action frame and taking a Status code value in the second action frame as a candidate response device which agrees to execute the wireless sensing process as a response device; the second action frame comprises a parameter Status code which represents the response result of the candidate response equipment to the first action frame;
and the communication module III is used for the initiating device and the responding device to perform wireless perception measurement according to the Common info parameter and the Role parameter.
An apparatus, comprising:
the first communication module is used for receiving a first action frame, and the first action frame is used for requesting a plurality of candidate response devices to participate in a wireless perception process; the first action frame includes a parameter RA indicating a device address for receiving the first action frame and a parameter response info indicating each candidate responding device information element; the parameter response info includes a parameter Common info representing Common information of a plurality of candidate responding apparatuses and a parameter response N info representing candidate responding apparatus specific information; the parameter Response N info comprises an Address or identification parameter Address representing a candidate Response device, a Role parameter Role representing the candidate Response device in a wireless sensing process and a parameter Response RU representing a resource for sending a Response message, and RA is set as a broadcast Address;
the communication module II is used for judging whether the Address or the identification of the candidate Response equipment is the Address or the identification indicated by the Address or not by the candidate Response equipment, if so, setting a parameter status code value to indicate that the execution of the wireless sensing process is approved or not, and sending a second action frame to the initiating equipment according to the resource indicated by the Response RU, wherein the second action frame comprises the parameter status code;
and the communication module III is used for agreeing that the candidate response device executing the wireless perception process is used as a response device and an initiating device to carry out wireless perception measurement according to the parameter Common info and the parameter Role.
In a third aspect, an apparatus provided in an embodiment of the present application includes a processor and a memory, where the memory stores a computer program, and the processor is configured to execute the computer program to implement the method provided in the first aspect or any one of the optional implementation manners of the first aspect.
In a fourth aspect, an embodiment of the present application further provides a storage medium, where a computer program is stored on the storage medium, and when the computer program is executed, the method provided in the foregoing first aspect or any optional implementation manner of the first aspect is implemented.
Has the advantages that: the method of the embodiment of the application provides a one-to-many negotiation process and a design of negotiation signaling, avoids multiple negotiations by setting special information of candidate response equipment, reduces signaling overhead in the process of sensing negotiation, and effectively saves wireless resources.
The device and the storage medium provided in the embodiments of the present application have the same beneficial effects as the method provided in the first aspect or any one of the optional implementation manners of the first aspect, and are not described herein again.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application are described below.
Wireless Local Area Network (WLAN) sending: wireless sensing;
station (STA): a terminal device;
access Point (AP): a network access device;
received Signal Strength Indication (RSSI): a signal strength indication;
sending discovery request message: a wireless-aware discovery request message;
sending discovery response message: a wireless-aware discovery response message;
initiator: initiating equipment;
responder: candidate responder/responder devices;
an action frame: an action frame;
the inventor researches and discovers that a plurality of response devices may participate in one wireless sensing process, and then the initiating device negotiates with each response device, and when the number of the participating devices is large, a large amount of signaling overhead is needed, and a large amount of wireless resources are consumed.
Based on the above research findings, the applicant proposes a method for performing a wireless sensing process by multiple parties, which specifically comprises the following steps:
in the invention, the initiating device of the wireless sensing process is called Initiator, and other participants of the wireless sensing process are called Responder; the Initiator comprises terminal equipment or network access equipment, and the Responder comprises the terminal equipment or the network access equipment;
if the Initiator is a network access device, selecting a terminal device with wireless sensing capability from the terminal devices connected with the Initiator as a Responder, and executing a wireless sensing process together;
if the Initiator is a terminal device, the network access device and other terminal devices with wireless sensing capability can be selected as a Responder to execute a wireless sensing process together.
The method comprises the following steps:
the Initiator sends an action frame to a plurality of candidate responders, such as Responder 1, responder 2, \ 8230 \ 8230;, responder n, the action frame is used for requesting the plurality of responders to participate in the wireless sensing process, and the action frame is set as follows:
| parameter(s) | Description of the invention |
| RA | Address of device receiving frame |
| TA | Address of device transmitting frame |
| Duration | The time length required for the frame transmission |
| Frame body | Frame body content |
Wherein, RA sets up as the broadcast address, TA sets up as the address of Initiator, duration calculates according to the data packet size, modulation coding strategy, parameter such as transmission channel, the Frame body sets up as follows:
| parameter(s) | Description of the invention |
| Category | Class of frame |
| WLAN Sensing Action | Wireless aware process frame subcategory |
| Sensing session ID | Wireless aware process identification |
| Sensing dependent profile | Information corresponding to each subcategory |
The category setting example is as follows, when the category value is set to 32 in the action frame, the category corresponding to the frame is WLAN sensing (wireless sensing), the category value may adopt various ways, including a numerical value or a special character, and when the numerical value is adopted, the setting is specifically as follows:
| value of | Description of the invention |
| 0 | Spectrum Management |
| 1 | QoS |
| …… | …… |
| 32 | WLAN Sensing |
The WLAN Sensing Action value may adopt various modes, including numerical values or special characters, and when numerical values are adopted, the WLAN Sensing Action is set as follows:
| value of | Subclass of representatives |
| 0 | Sensing session request |
| 1 | Sensing session response |
| 2 | Sensing session report |
| 3 | Sensing session teardown |
In the Frame body information element, when category is set as WLAN sending, and WLAN sending action is set as sending session request, setting the following sending dependency profile, and when there are multiple responders, setting a responder info information element for each responder in the sending dependency profile, specifically as follows:
wherein Common info is set to contain one or more of the following parameters:
wherein, responder 1info, \8230 @, responder N info is set as:
| parameter(s) | Description of the preferred embodiment |
| Address/AID | Address or identification of the Responder; |
| Role | a sender: transmit, receiver: receiver |
| Response RU | A resource for sending a response message; |
the role of the Responder in the wireless sensing process is set as 'transmitter' to indicate that the Responder is requested to send a wireless sensing signal; the setting of "receiver" means to request the responder to receive the wireless sensing signal and measure and report the measurement result.
After receiving the action frame, other equipment checks whether the Address or the identification in the Address/AID in the response info is the Address or the identification of the equipment, if so, the equipment decides whether the wireless sensing process can be executed, and if not, the action frame is ignored; if the device agrees to execute the wireless sensing process, setting a parameter status code value as accepted, if the wireless sensing process is executed differently, setting a parameter returned, sending an action frame to an Initiator according to resource information indicated by a Response RU, wherein the action frame is set as follows:
wherein, RA sets up as the address of Initiator, TA sets up as the address of the apparatus, duration calculates according to the data packet size, modulation coding strategy, parameter such as transmission channel, the Frame body sets up as follows:
| parameter(s) | Description of the invention |
| Category | Class of frame |
| WLAN Sensing Action | Wireless aware process frame subcategory |
| Sensing session ID | Wireless aware process identification |
| Sensing dependent profile | Information corresponding to each subcategory |
In the Frame body information element, category is set as WLAN sending, and WLAN sending action is set as sending session response;
when the WLAN Sensing Action indicates a Sensing session response, the Sensing dependency profile is set to:
the Response sender sends an action frame to the Initiator according to the resource information indicated by the Response RU, wherein the specific setting mode of the Response RU can be as follows:
scale factor: indicating an interval time value, setting a different interval time value for each response, and enabling the response to send a response message at each set time;
RU number: and the resource numbers and the information in the time domain and/or the frequency domain corresponding to each resource number enable the response sender to use different resource blocks to send the response message.
After the Initiator receives an Action frame with a WLAN Sensing Action value of sending session response sent by other equipment, if the status code value is accepted, the equipment is used as a response of a wireless Sensing process;
if the Initiator serves as a wireless sensing signal sender, sending a wireless sensing signal according to SDP sending start time, SDP duration, SDP interval, frequency band, bandwidth and Number of antenna;
the Responder is used as a wireless perception signal receiver, starts to receive wireless perception signals according to SDP sending start time, and sends a measurement Report to an Initiator according to Report mode and result type, if the Report mode indicates that the Report mode is a trigger Report, the Initiator waits for sending a Report request message and then sends the measurement Report as a response, if the Report mode indicates that the Report mode is automatic sending, the Initiator sends the measurement Report after obtaining a measurement result, and an action frame carrying the measurement Report is set as:
| parameter(s) | Description of the preferred embodiment |
| RA | An address of a device receiving the frame; |
| TA | an address of a device transmitting the frame; |
| Duration | the time length required by the frame transmission; |
| Frame body | frame body content; |
wherein, RA sets up as the address of Initiator, TA sets up as the address of this responder, duration calculates according to the data packet size, modulation coding strategy, parameter such as transmission channel, the Frame body sets up as follows:
| parameter(s) | Description of the invention |
| Category | A category of the frame; |
| WLAN Sensing Action | a wireless awareness process frame subcategory; |
| Sensing session ID | a wireless awareness process identification; |
| Sensing dependent profile | information corresponding to each sub-category; |
in the Frame body information element, category is set as WLAN sending, and WLAN sending action is set as sending session report;
when the WLAN Sensing Action indicates a Sensing session report, the Sensing dependency profile is set as:
if the responder is used as a wireless sensing signal sender, sending a wireless sensing signal according to SDP sending start time, SDP duration, SDP interval, frequency band, bandwidth and Number of antenna, and receiving and measuring the wireless sensing signal by an Initiator;
in another embodiment, when the Initiator needs to end an ongoing radio awareness process, an action frame is sent to the responder, and the action frame is set as:
wherein, RA is set as the broadcast address, TA is set as the address of Initiator, duration is calculated according to the parameters such as the size of the data packet, the modulation coding strategy, the transmission channel, and the like, and the Frame body is set as follows:
| parameter(s) | Description of the invention |
| Category | A category of the frame; |
| WLAN Sensing Action | a wireless awareness process frame subcategory; |
| Sensing session ID | a wireless awareness process identification; |
| Sensing dependent profile | information corresponding to each sub-category; |
in the Frame body information element, category is set as WLAN sending, and WLAN sending action is set as sending session metadata;
when the WLAN Sensing Action indicates Sensing session below, the Sensing dependency profile is set as:
| parameter(s) | Description of the invention |
| Reason code | Reason for ending the wireless sensing process; |
after receiving the action frame of which the WLAN sending action is set as sending session down, if the action frame is used as a transmitter, the Responder stops sending the wireless sensing signal, and if the action frame is used as a receiver, the Responder stops measuring the wireless sensing signal and sending a measurement report;
in another embodiment, after the Initiator receives an Action frame with a WLAN Sensing Action value of sending session response sent by other equipment, if the status code value is accepted, the equipment is used as a responder of the wireless Sensing process; a new confirmation link, namely a WLAN Sensing Action addition type: a Sensing session confirm;
wherein, the WLAN Sensing Action setting is modified as follows:
| value of | Subclass of representations |
| 0 | Sensing session request； |
| 1 | Sensing session response； |
| 2 | Sensing session report； |
| 3 | Sensing session teardown； |
| 4 | Sensing session confirm； |
The Initiator sends an action frame to the responder, and the action frame is set as follows:
| parameter(s) | Description of the preferred embodiment |
| RA | An address of a device receiving the frame; |
| TA | an address of a device transmitting the frame; |
| Duration | the frame is sent for a required duration; |
| Frame body | frame body content; |
wherein, RA sets up as the broadcast address, TA sets up as the address of Initiator, duration calculates according to the data packet size, modulation coding strategy, parameter such as transmission channel, the Frame body sets up as follows:
| parameter(s) | Description of the invention |
| Category | A category of the frame; |
| WLAN Sensing Action | a wireless awareness process frame subcategory; |
| Sensing session ID | a wireless sensing process identification; |
| Sensing dependent profile | information corresponding to each sub-category; |
in the Frame body information element, category is set as WLAN sending, and WLAN sending action is set as sending session confirm;
when the WLAN Sensing Action indicates a Sensing session confirm, the Sensing dependency profile is set as:
in another embodiment, before the first action frame is sent by the initiating device before the awareness negotiation, the method includes the steps of: determining a candidate responding device response:
when the Initiator is a terminal device, measuring adjacent terminal devices to obtain the RSSI of the adjacent terminal devices, and if the RSSI is greater than a preset threshold value T _ sensing of the signal strength of the sensing process, taking the device as a candidate response device;
the Initiator sends a sending discovery request message to the AP, wherein the sending discovery request message comprises the address of the candidate responder and the address of the Initiator, and the AP sends the sending discovery request message to the candidate response equipment;
the candidate response equipment receives the sending discovery request message, decides whether the wireless sensing process can be executed according to the self capacity, and if the wireless sensing process can be executed, sends the sending discovery response message to the Initiator according to the address of the Initiator contained in the sending discovery request message;
the Initiator modifies the candidate response according to the received sending discovery response message, keeps the equipment corresponding to the received sending discovery response message in the candidate response equipment, and deletes the equipment corresponding to the equipment which does not receive the sending discovery response message from the candidate response equipment.
In summary, the initiating device sends a first action frame, where the first action frame is used to request a plurality of candidate responding devices to participate in a wireless sensing process; the first action frame includes a device address parameter RA indicating reception of the first action frame and a parameter response info indicating each candidate responding device information element; the parameter response info includes a parameter Common info representing Common information of a plurality of candidate responding apparatuses and a parameter response N info representing candidate responding apparatus specific information; the parameter Response N info comprises an Address or identification parameter Address representing candidate Response equipment, a Role parameter Role representing the candidate Response equipment in a wireless sensing process and a parameter Response RU representing a resource for sending a Response message, and RA is set as a broadcast Address; the initiating device receives a second action frame, and takes a Status code value in the second action frame as a candidate response device which agrees to execute a wireless sensing process as a response device; the second action frame comprises a parameter Status code which represents the response result of the candidate response equipment to the first action frame; and the initiating device and the responding device carry out wireless perception measurement according to the Common info and the Role.
When a plurality of candidate response devices exist, the initiating device sets the proprietary information of the candidate response devices in the action frame, namely the address of each candidate response device, the role in the wireless sensing process and the resource for sending the response message, classifies the public information and the proprietary information in the candidate response devices, sets all the candidate response devices in the action frame at one time, classifies the public information and the proprietary information, reduces signaling overhead in the sensing negotiation process, and effectively saves wireless resources.
The candidate response equipment end: receiving a first action frame by a candidate response device, wherein the first action frame is used for requesting a plurality of candidate response devices to participate in a wireless perception process by an initiating device; the first action frame comprises a device address parameter RA indicating the reception of the first action frame and a parameter response info indicating each candidate responding device information element; the parameter response info comprises a parameter Common info representing information Common to a plurality of candidate responding apparatuses and a parameter response N info representing information specific to the candidate responding apparatuses; the parameter Response N info comprises an Address or identification parameter Address representing candidate Response equipment, a Role parameter Role representing the candidate Response equipment in a wireless sensing process and a parameter Response RU representing a resource for sending a Response message, and RA is set as a broadcast Address;
the candidate Response equipment judges whether the Address or the identification of the candidate Response equipment is the Address or the identification indicated by the parameter Address, if so, the candidate Response equipment sets a parameter status code value to indicate that the execution of the wireless sensing process is approved or not, and sends a second action frame to the initiating equipment according to the resource indicated by the Response RU, wherein the second action frame comprises the parameter status code;
and the candidate responding device which agrees to execute the wireless perception process and the initiating device perform wireless perception measurement according to the Common info parameter and the Role parameter.
The setting of all candidate response devices is included in the action frame at one time, and the public information and the proprietary information are classified, so that the signaling overhead in the sensing negotiation process is reduced, and the wireless resources are effectively saved.
Based on the above method, this embodiment provides a device, which may be a television, a projector, a smart phone, a tablet computer, and the like, and specifically, if the initiating device is a terminal device, the initiating device may be a display device such as a smart television, a projector, and the like; the candidate response equipment can be other terminal equipment or network access equipment, and the other terminal equipment can be an intelligent refrigerator or an intelligent air conditioner; the network access device can be a gateway device such as a router; when a plurality of parties carry out a wireless sensing process, if the initiating device is a projector, the responding device can be an intelligent television, an intelligent refrigerator, an intelligent air conditioner, a router and the like; if the initiating device is the former, the responding device can be an intelligent television, an intelligent refrigerator, an intelligent air conditioner, a projector and the like.
The initiating device needs to have a communication module, which is stated from the initiating device and the responding device respectively:
the initiating device comprises a first communication module, a second communication module and a third communication module.
The first communication module is used for sending a first action frame, and the first action frame is used for requesting a plurality of candidate response devices to participate in a wireless perception process; the first action frame includes a parameter RA indicating a device address for receiving the first action frame and a parameter response info indicating each candidate responding device information element; the parameter response info comprises a parameter Common info representing information Common to a plurality of candidate responding apparatuses and a parameter response N info representing information specific to the candidate responding apparatuses; the parameter Response N info comprises an Address or identification parameter Address representing candidate Response equipment, a Role parameter Role representing the candidate Response equipment in a wireless sensing process and a parameter Response RU representing a resource for sending a Response message, and RA is set as a broadcast Address;
the communication module II is used for receiving a second action frame and taking a Status code value in the second action frame as a candidate response device which agrees to execute the wireless sensing process as a response device; the second action frame comprises a parameter Status code which represents the response result of the candidate response equipment to the first action frame;
and the communication module III is used for the initiating device and the responding device to perform wireless perception measurement according to the Common info parameter and the Role parameter.
Or the initiating device comprises a communication module which completes the message receiving and sending and the judgment action, or comprises a communication module and a processing module, wherein the communication module is used for completing the message receiving and sending interaction, and the processing module is used for judging whether the wireless sensing capability is supported and calculating the measurement result.
Or the candidate responding device/responding device comprises a first communication module, a second communication module and a third communication module.
The first communication module is used for receiving a first action frame, and the first action frame is used for requesting a plurality of candidate response devices to participate in a wireless perception process; the first action frame comprises a device address parameter RA indicating the reception of the first action frame and a parameter response info indicating each candidate responding device information element; the parameter response info includes a parameter Common info representing Common information of a plurality of candidate responding apparatuses and a parameter response N info representing candidate responding apparatus specific information; the parameter Response N info comprises an Address or identification parameter Address representing candidate Response equipment, a Role parameter Role representing the candidate Response equipment in a wireless sensing process and a parameter Response RU representing a resource for sending a Response message, and RA is set as a broadcast Address;
the communication module II is used for judging whether the Address or the identification of the candidate Response equipment is the Address or the identification indicated by the Address or not by the candidate Response equipment, if so, setting a parameter status code value to indicate that the execution of the wireless sensing process is approved or not, and sending a second action frame to the initiating equipment according to the resource indicated by the Response RU, wherein the second action frame comprises the parameter status code;
and the communication module III is used for agreeing to the candidate response equipment for executing the wireless perception process as the response equipment and the initiating equipment to carry out wireless perception measurement according to the parameter Common info and the parameter Role.
Similarly, the response selection device/response device comprises a communication module, wherein the communication module completes the message receiving and sending and the judgment action, or comprises a communication module and a processing module, the communication module is used for receiving and sending messages to complete interaction, and the processing module is used for judging whether the wireless sensing capability is supported and calculating the measurement result.
Based on the same inventive concept as the method, an embodiment of the present application further provides an apparatus, including a processor and a memory, where the processor is configured to execute the computer program to implement the method, and reference may be specifically made to the embodiment of the method, which is not described in detail in the embodiment of the present application.
Based on the same inventive concept as the above method, an embodiment of the present application further provides a storage medium, where a computer program is stored on the storage medium, and when the computer program is executed, the method provided in the embodiment of the present application is implemented, which may be specifically referred to in the embodiment of the present application, and is not described in detail in the embodiment of the present application.
In the several embodiments provided in the present application, it should be understood that the disclosed apparatus/device and method may be implemented in other manners. The apparatus/device embodiments described above are merely illustrative.
In addition, the functional modules in each embodiment of the present application may be integrated together to form an independent part, or each module may exist separately, or two or more modules may be integrated to form an independent part.
The functions may be stored in a computer-readable storage medium if they are implemented in the form of software functional modules and sold or used as separate products. Based on such understanding, the technical solutions of the present application, or portions thereof, which substantially or partly contribute to the prior art, may be embodied in the form of a software product, which is stored in a storage medium and includes several instructions for causing a computer device (which may be a personal computer, a server, or a network device) to perform all or part of the steps of the method described in each embodiment of the present application. And the aforementioned storage medium includes: various media capable of storing program codes, such as a usb disk, a removable hard disk, a Random Access Memory (RAM), a Read Only Memory (ROM), a magnetic disk, or an optical disk.
The above description is only an example of the present application and is not intended to limit the scope of the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Moreover, it is noted that, in this document, relational terms such as "first," "second," "third," and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Claims (22)
1. A method for a plurality of parties to perform a wireless awareness process, comprising:
the initiating device sends a first action frame, wherein the first action frame is used for requesting a plurality of candidate responding devices to participate in a wireless perception process; the first action frame includes a device address parameter RA indicating reception of the first action frame and a parameter response info indicating each candidate responding device information element; the parameter response info includes a parameter Common info representing Common information of a plurality of candidate responding apparatuses and a parameter response N info representing candidate responding apparatus specific information; the parameter Response N info comprises an Address or identification parameter Address representing candidate Response equipment, a Role parameter Role representing the candidate Response equipment in a wireless sensing process and a parameter Response RU representing a resource for sending a Response message, and RA is set as a broadcast Address;
the initiating device receives a second action frame, and takes a Status code value in the second action frame as a candidate response device which agrees to execute a wireless sensing process as a response device; the second action frame comprises a parameter Status code which represents the response result of the candidate response equipment to the first action frame;
and the initiating device and the responding device carry out wireless perception measurement according to the Common info and the Role.
2. The method of claim 1, wherein the parameter Common info comprises the following parameters:
the method comprises the steps of a parameter SDP sending start time for indicating the sending start time of a wireless sensing data packet, a parameter SDP duration for indicating the sending time of the wireless sensing data packet, a parameter SDP interval for indicating the sending interval of the wireless sensing data packet, a parameter Frequency band for indicating the sending Frequency band of the wireless sensing data packet, a parameter Bandwidth for indicating the sending Bandwidth of the wireless sensing data packet, a parameter Number of antenna for indicating the sending or/and receiving use Number of the wireless sensing data packet, a parameter Report mode for indicating a measurement Report mode and a parameter result type for indicating the type of a measurement Report result.
3. The method according to claim 2, wherein the initiating device and the responding device execute the wireless sensing process according to the parameter Common info and the parameter Role, and the method comprises the following steps:
if the initiating device serves as a wireless sensing signal sender, sending a wireless sensing signal according to the parameter Common info; the response equipment is used as a wireless sensing signal receiver, starts to receive the wireless sensing signal according to the SDP sending start time, and sends a measurement Report to the initiating equipment according to the Report mode and the result type.
4. The method according to claim 2, wherein the initiating device and the responding device execute the wireless sensing process according to the parameter Common info and the parameter Role, and the method comprises the following steps:
if the response equipment is used as a wireless sensing signal sender, sending a wireless sensing signal according to the parameter Common info; the initiating device receives and measures the wireless sensing signal.
5. The method according to claim 1, wherein the first Action Frame comprises a parameter Frame body representing the content of the Frame body, and the parameter Frame body comprises a Category of the Frame, a wireless Sensing process Frame subcategory WLAN Sensing Action, a wireless Sensing process identification Sensing session ID, and information Sensing dependency profile corresponding to each subcategory.
6. The method of claim 5, wherein said Sensing dependent profile comprises said parameter, responder info.
7. The method of claim 5, wherein when the value of Category indicates wireless Sensing, the WLAN Sensing Action in the first Action frame is indicated as Sensing session request, and the WLAN Sensing Action in the second Action frame is indicated as Sensing session response; a WLAN Sensing Action indication in a third Action frame carrying the measurement report is a Sensing session report; and if the initiating equipment needs to finish the ongoing wireless Sensing process, sending a fourth Action frame to the responding equipment, wherein the WLAN Sensing Action in the fourth Action frame indicates Sensing session relay.
8. The method of claim 7, wherein the Sensing dependent profile in the third action frame comprises a parameter CSI matrix indicating a channel state information value or a parameter BF SNR indicating a beamforming signal-to-noise ratio or a parameter Doppler indicating a Doppler shift.
9. The method according to claim 7, wherein the Sensing dependency profile in the fourth action frame includes a parameter Reason code indicating a Reason for ending the wireless Sensing process.
10. The method of claim 6, wherein when the value of the Category indicates wireless awareness and the WLAN Sensing Action in the first Action frame indicates Sensing session confirm, the initiating device sends a fifth Action frame to the responding device after receiving the second Action frame and using the value of Status code in the second Action frame as the responding device to indicate a candidate responding device that agrees to execute the wireless awareness process, wherein the value of Status code in the fifth Action frame includes a parameter Status code for indicating whether the wireless awareness process is successfully established.
11. The method of claim 1,
if the initiating device is a network access device, selecting a device with wireless sensing capability from the terminal device connected with the initiating device as a response device, and executing a wireless sensing process together;
if the initiating device is a terminal device, selecting a network access device or other terminal devices with wireless sensing capability as response devices, and executing a wireless sensing process together.
12. The method of claim 11, wherein if the initiating device is a terminal device, and when the network access device or other wireless aware terminal device is selected as the responding device, before the initiating device sends the first action frame, the method comprises the steps of:
candidate responding devices are determined.
13. The method of claim 12, wherein said determining candidate responding devices comprises the steps of:
and measuring adjacent terminal equipment to obtain a Received Signal Strength Indication (RSSI), and if the RSSI value is greater than a preset sensing process signal strength threshold value T _ sensing, using the terminal equipment as candidate response equipment.
14. The method of claim 12, wherein the step of determining candidate responding devices comprises the steps of:
the initiating device sends a sending discovery request message to the network access device, wherein the sending discovery request message comprises the address of the candidate responding device and the address of the initiating device, and the network access device sends the sending discovery request message to the candidate responding device;
the candidate response equipment receives the sending discovery request message, decides whether the wireless sensing process can be executed according to the self capacity, and if the wireless sensing process can be executed, sends the sending discovery response message to the initiating equipment according to the address of the initiating equipment in the sending discovery request message;
and the initiating device modifies the candidate response device according to the received sending discovery response message, keeps the device corresponding to the received sending discovery response message in the candidate response device, and deletes the device corresponding to the message which does not receive the sending discovery response message from the candidate response device.
15. The method of claim 1, wherein the candidate responder device sends a second action frame to the initiator device according to the resource information indicated by the parameter Response RU.
16. The method of claim 15, wherein the parameter Response RU setting comprises:
setting a parameter Response RU value as a scale factor, indicating an interval time value, representing that a different interval time value is set for each candidate Response device, and sending a Response message according to the received interval time value after each candidate Response device receives the first action frame;
or the parameter Response RU value is set to be RU number, the resource number is indicated, the information in the time domain or/and the frequency domain corresponding to each resource number is represented, and each candidate Response device uses different resource blocks to send the Response message.
17. A method for a plurality of parties to perform a wireless awareness process, comprising:
receiving a first action frame by a candidate response device, wherein the first action frame is used for requesting a plurality of candidate response devices to participate in a wireless perception process by an initiating device; the first action frame comprises a device address parameter RA indicating the reception of the first action frame and a parameter response info indicating each candidate responding device information element; the parameter response info includes a parameter Common info representing Common information of a plurality of candidate responding apparatuses and a parameter response N info representing candidate responding apparatus specific information; the parameter Response N info comprises an Address or identification parameter Address representing candidate Response equipment, a Role parameter Role representing the candidate Response equipment in a wireless sensing process and a parameter Response RU representing a resource for sending a Response message, and RA is set as a broadcast Address;
the candidate Response equipment judges whether the Address or the identification of the candidate Response equipment is the Address or the identification indicated by the parameter Address, if so, the candidate Response equipment sets a parameter status code value to indicate that the execution of the wireless sensing process is approved or not, and sends a second action frame to the initiating equipment according to the resource indicated by the Response RU, wherein the second action frame comprises the parameter status code;
and the candidate responding device which agrees to execute the wireless perception process and the initiating device perform wireless perception measurement according to the Common info parameter and the Role parameter.
18. The method of claim 17, wherein the parameter Response RU setting comprises:
setting a parameter Response RU value as a scale factor, indicating an interval time value, representing that a different interval time value is set for each candidate Response device, and after each candidate Response device receives the first action frame, sending a Response message according to the received interval time value;
or the parameter Response RU value is set to be RU number, the resource number is indicated, the information in the time domain or/and the frequency domain corresponding to each resource number is represented, and each candidate Response device uses different resource blocks to send Response messages.
19. An apparatus, comprising:
the first communication module is used for sending a first action frame, and the first action frame is used for requesting a plurality of candidate response devices to participate in a wireless perception process; the first action frame comprises a device address parameter RA indicating the reception of the first action frame and a parameter response info indicating each candidate responding device information element; the parameter response info includes a parameter Common info representing Common information of a plurality of candidate responding apparatuses and a parameter response N info representing candidate responding apparatus specific information; the parameter Response N info comprises an Address or identification parameter Address representing candidate Response equipment, a Role parameter Role representing the candidate Response equipment in a wireless sensing process and a parameter Response RU representing a resource for sending a Response message, and RA is set as a broadcast Address;
the communication module II is used for receiving a second action frame and taking a Status code value in the second action frame as a candidate response device which agrees to execute the wireless sensing process as a response device; the second action frame comprises a parameter Status code which represents the response result of the candidate response equipment to the first action frame;
and the communication module III is used for the initiating device and the responding device to carry out wireless perception measurement according to the Common info and the Role parameters.
20. An apparatus, comprising:
the first communication module is used for receiving a first action frame, and the first action frame is used for requesting a plurality of candidate response devices to participate in a wireless perception process; the first action frame comprises a device address parameter RA indicating the reception of the first action frame and a parameter response info indicating each candidate responding device information element; the parameter response info comprises a parameter Common info representing information Common to a plurality of candidate responding apparatuses and a parameter response N info representing information specific to the candidate responding apparatuses; the parameter Response N info comprises an Address or identification parameter Address representing candidate Response equipment, a Role parameter Role representing the candidate Response equipment in a wireless sensing process and a parameter Response RU representing a resource for sending a Response message, and RA is set as a broadcast Address;
a communication module II, configured to judge, by the candidate Response device, whether an Address or an identifier of the candidate Response device is an Address or an identifier indicated by Address, and if so, set a parameter status code value indicating that execution of the wireless sensing process is approved or not approved, and send a second action frame to the initiating device according to a resource indicated by a Response RU, where the second action frame includes the parameter status code;
and the communication module III is used for agreeing that the candidate response device executing the wireless perception process is used as a response device and an initiating device to carry out wireless perception measurement according to the parameter Common info and the parameter Role.
21. An apparatus comprising a processor and a memory, the memory having stored thereon a computer program for execution by the processor to perform the method of any one of claims 1 to 18.
22. A storage medium having a computer program stored thereon, wherein the computer program, when executed, implements the method of any one of claims 1 to 18.
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