CN116866975A

CN116866975A - Measurement method, device and equipment

Info

Publication number: CN116866975A
Application number: CN202210908243.XA
Authority: CN
Inventors: 娜仁格日勒; 韩霄; 狐梦实; 杜瑞; 于健; 李云波; 刘辰辰
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2022-03-28
Filing date: 2022-07-29
Publication date: 2023-10-10

Abstract

The embodiment of the application provides a measuring method, a measuring device and measuring equipment. The method can be used for wireless local area network systems of 802.11 series protocols such as 802.11be, wi-Fi 7, EHT, wi-Fi 8, 802.11bf, SENSING and the like. The method designs a kind of sensing trigger frame (including a sensing polling trigger frame, a sensing detection trigger frame, a sensing report trigger frame and the like, for example), and specifically designs a field of the sensing trigger frame, which carries information for sensing measurement and/or ranging measurement (including a measurement entity identifier for sensing measurement, a ranging measurement parameter for ranging measurement and the like, for example). Such that this class of perceptual trigger frames may be used for trigger-based perceptual measurements and/or ranging measurements.

Description

Measurement method, device and equipment

Technical Field

The present application relates to the field of communications technologies, and in particular, to a measurement method, apparatus, and device.

Background

On the one hand, sensing with commonly available Wi-Fi devices is a hotspot of current research due to the widespread deployment of wireless fidelity (wireless fidelity, wi-Fi) devices and the increasing demand for sensing (sensing). For example, a signal sent by a Wi-Fi device is usually received through reflection, diffraction and scattering of various obstacles, and a wireless signal, such as Channel State Information (CSI), affected by the various obstacles is analyzed to infer and sense a surrounding environment, so as to implement a sensing procedure. Thus, for WiFi devices, the specific implementation of the awareness flow is something worth studying.

Disclosure of Invention

The embodiment of the application provides a measurement method, a measurement device and measurement equipment, wherein the measurement method designs a class of perception trigger frames, and the class of perception trigger frames can be identified by equipment supporting perception, so that the equipment supporting perception can have the function of perception measurement based on triggering.

In a first aspect, an embodiment of the present application provides a measurement method performed by a first device. Wherein the first device may be an access point AP. The first device triggers the second device to send a first null data packet NDP to the first device by sending a sensing probe trigger frame to the second device, the first NDP being usable for making sensing measurements. The first device receives the first NDP and transmits a second NDP to the second device, wherein a perception measurement of the second device is determined based on the second NDP.

By the method, the sensing detection trigger frame designed by the embodiment of the application is sent to the second device by the first device, the sensing detection trigger frame can be identified by the second device (for example, the sensing device), and the function of the sensing detection trigger frame comprises the function of triggering the second device to send information related to sensing measurement to the first device, so that the sensing device can have the function of sensing measurement based on triggering.

In one possible implementation, the second device is a sensing device.

The sensing detection trigger frame carries a measurement establishment identifier for sensing measurement; the measurement establishment identification is carried in a first field and/or a second field in a public information field of the sensing detection trigger frame, or the measurement establishment identification is carried in a user information field of the sensing detection trigger frame.

By the method, the field carrying the measurement establishment identifier for the sensing measurement in the sensing detection trigger frame is designed, so that the design mode of the sensing detection trigger frame is more flexible, and the second equipment is facilitated to identify the measurement establishment identifier for the sensing measurement.

In one possible implementation, the sensing probe trigger frame carries a measurement entity identification for sensing measurements; the measurement entity identifier is carried in a first field and/or a second field in a public information field of the sensing detection trigger frame, or the measurement entity identifier is carried in a user information field of the sensing detection trigger frame.

By the method, the field carrying the measurement entity identifier for sensing measurement in the sensing detection trigger frame is designed, so that the design mode of the sensing detection trigger frame is more flexible, and the second equipment is facilitated to identify the measurement entity identifier for sensing measurement.

In one possible implementation manner, the measurement setup identifier and the measurement entity identifier are both carried in a second field in a common information field of the sensing probe trigger frame, the length of the second field is b bits, and b is a positive integer.

In one possible embodiment, b is greater than or equal to 8.

By the method, the second field of the sensing detection trigger frame can be expanded, so that the measurement establishment identifier and the measurement entity identifier can be carried in the second field at the same time, and the design mode of the sensing detection trigger frame is more flexible.

In one possible implementation manner, the sensing detection trigger frame carries first indication information, the first indication information is carried in a second field in a public information field of the sensing detection trigger frame, and the value of the first indication information in the sensing detection trigger frame is a first value.

By the method, the frame structure and the field similar to those of the existing trigger frame can be adopted by the designed sensing detection trigger frame, so that the second equipment can recognize the sensing detection trigger frame.

In one possible implementation, before the first device sends the perceived probe trigger frame to the second device, the first device sends a perceived poll trigger frame to the second device; the first device receives a first response frame from the second device for the perceived poll trigger frame, the first response frame being used to confirm that the second device is engaged in the perceived measurement.

By the method, the sensing polling trigger frame designed by the embodiment of the application is sent to the second device by the first device, and the sensing polling trigger frame can be identified by the second device (for example, the sensing device), so that the sensing device can have the function of sensing measurement based on triggering.

In one possible implementation, the second device is a sensing device.

The sensing polling trigger frame carries a measurement establishment identifier for sensing measurement; wherein the measurement setup identifier is carried in a first field and/or a second field in a common information field of the perceived polling trigger frame.

According to the method, the field carrying the measurement establishment identification for the sensing measurement in the sensing polling trigger frame is designed, so that the design mode of the sensing polling trigger frame is more flexible, and the second equipment is facilitated to identify the measurement establishment identification for the sensing measurement.

In one possible implementation, the perceived poll trigger frame carries a measurement entity identification for perceived measurement; wherein, the measurement entity identifier is carried in a first field and/or a second field in a public information field of the sensing polling trigger frame.

According to the method, the field carrying the measurement entity identifier for sensing measurement in the sensing polling trigger frame is designed, so that the design mode of the sensing polling trigger frame is more flexible, and the second equipment is facilitated to identify the measurement entity identifier for sensing measurement.

In one possible implementation manner, the measurement setup identifier and the measurement entity identifier are both carried in a second field in a common information field of the cognitive poll trigger frame, and the length of the second field is b bits, and b is a positive integer.

In one possible embodiment, b is greater than or equal to 8.

By the method, the second field of the sensing polling trigger frame can be expanded, so that the measurement establishment identifier and the measurement entity identifier can be carried in the second field at the same time, and the design mode of the sensing polling trigger frame is more flexible.

In one possible implementation manner, the sensing polling trigger frame carries first indication information, the first indication information is carried in a second field in a public information field of the sensing polling trigger frame, and the value of the first indication information in the sensing polling trigger frame is a second value.

By the method, the frame structure and the field similar to those of the existing trigger frame can be adopted by the designed sensing polling trigger frame, so that the second equipment can recognize the sensing polling trigger frame.

In one possible implementation, the first device sends a perception report trigger frame to the second device; the first device receives a second response frame from the second device for the perception report trigger frame, the second response frame including a perception measurement of the second device.

By the method, the sensing report trigger frame designed by the embodiment of the application can be identified by the second device (for example, the sensing device), so that the sensing device can have the function of sensing measurement based on triggering.

In one possible implementation, the second device is a sensing device.

The sensing report triggering frame carries a measurement establishment identifier for sensing measurement; the measurement establishment identification is carried in a first field and/or a second field in a public information field of the sensing report trigger frame, or carried in a user information field of the sensing report trigger frame.

By the method, the field carrying the measurement establishment identifier for the sensing measurement in the sensing report trigger frame is designed, so that the design mode of the sensing report trigger frame is more flexible, and the second equipment is facilitated to identify the measurement establishment identifier for the sensing measurement.

In one possible implementation, the sensing report trigger frame carries a measurement entity identification for sensing measurements; the measurement entity identifier is carried in a first field and/or a second field in a public information field of the sensing report trigger frame, or the measurement entity identifier is carried in a user information field of the sensing report trigger frame.

By the method, the field carrying the measurement entity identifier for sensing measurement in the sensing report trigger frame is designed, so that the design mode of the sensing report trigger frame is more flexible, and the second equipment is facilitated to identify the measurement entity identifier for sensing measurement.

In one possible implementation manner, the measurement setup identifier and the measurement entity identifier are both carried in a second field in the common information field, where the length of the second field is b bits, and b is a positive integer.

In one possible embodiment, b is greater than or equal to 8.

By the method, the second field in the public information field of the sensing report trigger frame can be expanded, so that the measurement establishment identifier and the measurement entity identifier can be carried in the second field at the same time, and the design mode of the sensing report trigger frame is more flexible.

In one possible implementation manner, the sensing report trigger frame carries first indication information, the first indication information is carried in a trigger related public information field of the sensing report trigger frame, and the value of the first indication information in the sensing report trigger frame is a third value.

By the method, the frame structure and the field similar to those of the existing trigger frame can be adopted for the designed sensing report trigger frame, so that the second equipment can recognize the sensing report trigger frame.

In one possible implementation, the NDPA carries one or more of the following information:

the association identifier is associated with the sensing equipment;

the second indication information is used for indicating the sensing device to execute sensing measurement;

a measurement setup identifier for the perceptual measurement;

measurement entity identification for perceptual measurement.

By the method, the embodiment of the application also designs the NDPA, which is beneficial for the second equipment to recognize the NDPA as the sensing NDPA, thereby being beneficial for the second equipment to realize the sensing measurement function.

In a possible implementation manner, the second indication information is carried in a user information field of the corresponding sensing device in the NDPA, or a special user information field in the NDPA, or a sounding dialog token field in the NDPA.

In one possible implementation, the measurement setup identifier is carried in a user information field of the corresponding sensing device in the NDPA, or in a special user information field in the NDPA, or in a sounding dialog token field in the NDPA.

In one possible implementation, the measurement entity identifier is carried in a user information field of the corresponding sensing device in the NDPA, or in a special user information field in the NDPA, or in a sounding dialog token field in the NDPA.

In one possible implementation, the association identifier is carried in a user information field of the corresponding sensing device in the NDPA or in a special user information field in the NDPA.

In one possible implementation, the second device is a sensing device.

The sensing trigger frame carries second indication information, and is a sensing detection trigger frame, a sensing polling trigger frame or a sensing report trigger frame. The second indication information is used to instruct the sensing device to perform a sensing measurement. The second indication information is carried in a user information field of the perception trigger frame, or a first field or a second field of the public information field.

According to the method, the field indicating the function of the device in the existing trigger frame is multiplexed in the perception trigger frame designed in the embodiment of the application, and the second device is specifically indicated to execute the perception measurement through the second indication information, so that the second device is facilitated to recognize the second indication information, and the perception measurement is executed.

In a second aspect, the application provides a measurement method performed by a second device. Wherein the second device may be a non-access point station, non-AP STA. The second device receives a sensing detection trigger frame, wherein the sensing detection trigger frame is used for triggering the second device to send a first Null Data Packet (NDP), and the first NDP is used for sensing measurement. The second device sends a first NDP; the second device receives a second NDP sent by the first device, wherein a perception measurement result of the second device is determined based on the second NDP.

By the method, the sensing detection trigger frame designed by the embodiment of the application can be identified by the second equipment (for example, sensing equipment), and the function of the sensing detection trigger frame comprises the function of triggering the second equipment to send information related to sensing measurement to the first equipment, so that the sensing equipment can have the function of sensing measurement based on triggering.

In one possible implementation, before the second device receives the second NDP sent by the first device,

the second device also receives an empty data packet announcement NDPA sent by the first device, where the NDPA is used to inform the second device that the first device will send the second NDP.

In one possible implementation, the second device is a sensing device.

The sensing detection trigger frame carries a measurement establishment identifier for sensing measurement; the measurement establishment identification is carried in a first field and/or a second field in a public information field of the sensing detection trigger frame, or carried in a user information field of the sensing detection trigger frame.

In one possible embodiment, b is greater than or equal to 8.

In one possible implementation, the second device receives the perceived poll trigger frame before the second device receives the perceived probe trigger frame; the second device sends a first response frame to the perceived poll trigger frame, wherein the first response frame is used for confirming that the second device participates in the perceived measurement.

By the method, the sensing polling trigger frame designed by the embodiment of the application can be identified by the second device (for example, the sensing device), so that the sensing device can have the function of sensing measurement based on triggering.

In one possible implementation, the second device is a sensing device.

In one possible embodiment, b is greater than or equal to 8.

In one possible implementation, the second device receives a perception report trigger frame; the second device transmits a second response frame to the perception report trigger frame, the second response frame including a perception measurement of the second device.

In one possible implementation, the second device is a sensing device.

In one possible embodiment, b is greater than or equal to 8.

the association identifier is associated with the sensing equipment;

a measurement setup identifier for the perceptual measurement;

measurement entity identification for perceptual measurement.

In one possible implementation, the measurement setup identifier is carried in a user information field of the corresponding sensing device in the NDPA, or in a special user information field in the NDPA, or in a probing dialog token field in the NDPA;

In a possible implementation manner, the measurement entity identifier is carried in a user information field of the corresponding sensing device in the NDPA, or a special user information field in the NDPA, or a detection dialogue mark field in the NDPA;

In one possible implementation, the second device is a sensing device.

In a third aspect, embodiments of the present application provide another measurement method performed by a second device. Wherein the second device may be a aware non-AP STA. The second device sends a perceived empty data packet announcement NDPA to the first device, based on which the second device sends an empty data packet I2R-NDP that initiates a response to the first device. The second device receives a response from the first device to the initiated null data packet R2I-NDP.

By the method, the AP can also be used as a sensing response end to participate in sensing, and a sensing initiating end is a non-AP STA. In this case, the sensing initiator can only sense with one sensing responder at the same time, i.e. the sensing flow described in this aspect is a sensing flow based on a non-trigger mechanism, i.e. a one-to-one process. The sensing device may implement sensing measurements according to NDP.

In one possible implementation, the perceptual NDPA carries third indication information, which is used to instruct the first device to perform the perceptual measurement.

According to the method, the sensing NDPA designed in the embodiment of the application adopts a frame structure similar to the existing NDPA, and the sensing measurement is specifically indicated to the first equipment through the third indication information, so that the first equipment is facilitated to identify the third indication information, and the sensing measurement is executed.

In one possible implementation, the perceived NDPA carries a measurement setup identity for perceived measurements and a measurement entity identity for perceived measurements.

In a possible implementation manner, the third indication information is carried in a user information field or a special user information field of the corresponding sensing device in the sensing NDPA or a sounding dialog token field in the sensing NDPA.

In one possible implementation, the measurement setup identity is carried in a user information field or a special user information field of the corresponding sensing device in the sensing NDPA or in a probing dialog token field in the sensing NDPA.

In one possible implementation, the measurement entity identification is carried in a user information field or a special user information field of the corresponding sensing device in the sensing NDPA or in a probing dialog token field in the sensing NDPA.

In one possible implementation, the second device may also receive the sensing measurement result from the first device when the null data packet I2R-NDP initiated to the response is the NDP for the sensing measurement.

In a fourth aspect, embodiments of the present application provide a communication device including a plurality of functional units, including, for example, a communication unit. The communication unit is used for sending a sensing detection trigger frame to the second equipment, wherein the sensing detection trigger frame is used for triggering the second equipment to send a first empty data packet (NDP); the first NDP is used to make a perception measurement. The communication unit is also configured to receive a first NDP. The communication unit is further configured to send a second NDP to the second device, wherein the perceived measurement of the second device is determined based on the second NDP.

In one possible implementation, the second device is a sensing device.

In one possible embodiment, b is greater than or equal to 8.

In a possible implementation, before the communication unit is configured to send the sensing probe trigger frame to the second device, the communication unit is further configured to:

sending a perceived poll trigger frame to the second device;

a first response frame is received from the second device for the perceived poll trigger frame, the first response frame being used to confirm that the second device is engaged in the perceived measurement.

In one possible implementation, the second device is a sensing device.

In one possible embodiment, b is greater than or equal to 8.

In a possible embodiment, the communication unit is further configured to:

sending a perception report trigger frame to the second device;

a second response frame for the sensory report trigger frame is received from the second device, the second response frame including a sensory measurement of the second device.

In one possible implementation, the second device is a sensing device.

In one possible embodiment, b is greater than or equal to 8.

the association identifier is associated with the sensing equipment;

a measurement setup identifier for the perceptual measurement;

measurement entity identification for perceptual measurement.

In one possible implementation, the second device is a sensing device.

In a fifth aspect, embodiments of the present application provide a communication device including a plurality of functional units, including, for example, a communication unit. The communication unit is configured to receive a sensing detection trigger frame, where the sensing detection trigger frame is configured to trigger the second device to send a first null data packet NDP, and the first NDP is configured to perform sensing measurement. The communication unit is also configured to transmit the first NDP. The communication unit is further configured to receive a second NDP sent by the first device, wherein a second perceived measurement of the second device is determined based on the second NDP.

In a possible implementation, the communication unit is further configured to further receive an empty data packet announcement NDPA sent by the first device, where the NDPA is configured to inform the second device that the first device is to send the second NDP.

In one possible implementation, the second device is a sensing device.

In one possible embodiment, b is greater than or equal to 8.

In a possible embodiment, the communication unit is further configured to:

receiving a sensing polling trigger frame;

a first response frame to the perceived poll trigger frame is sent, wherein the first response frame is used for confirming that the second device participates in the perceived measurement.

In one possible implementation, the second device is a sensing device.

In one possible embodiment, b is greater than or equal to 8.

In a possible embodiment, the communication unit is further configured to:

receiving a perception report trigger frame;

a second response frame is sent for the perception report trigger frame, the second response frame including a perception measurement of the second device.

In one possible implementation, the second device is a sensing device.

In one possible embodiment, b is greater than or equal to 8.

the association identifier is associated with the sensing equipment;

a measurement setup identifier for the perceptual measurement;

measurement entity identification for perceptual measurement.

In one possible implementation, the second device is a sensing device.

In a sixth aspect, embodiments of the present application provide a communication device including a plurality of functional units, including a communication unit, for example. Wherein the communication unit is configured to send a perceived empty data packet advertisement NDPA to the first device. The communication unit is further configured to send an initiation-to-response null data packet, I2R-NDP, to the first device based on the perceived NDPA. The communication unit is further configured to receive a response from the first device to the initiated null data packet R2I-NDP.

In a possible embodiment, the communication unit is further configured to:

and when the null data packet I2R-NDP initiated to the response is the NDP used for the perception measurement, receiving the perception measurement result from the first device.

In a seventh aspect, the present application provides a communication device. The communication device is configured to implement the method performed by the first device in the first to third aspects described above. The communication device includes one or more processors, a transceiver, and a memory. For example, the transceiver is coupled to one or more processors, and the memory stores a computer program. For example, when one or more processors and transceivers in a communication device execute a computer program, the communication device performs the following operations:

sending a sensing detection trigger frame to the second equipment, wherein the sensing detection trigger frame is used for triggering the second equipment to send a first empty data packet (NDP), and the first NDP is used for sensing measurement;

receiving a first NDP from the second device;

and transmitting a second NDP to the second device, wherein the perception measurement result of the second device is determined based on the second NDP.

The specific description of the method performed by the first device may refer to the corresponding descriptions in the first aspect to the third aspect, which are not repeated herein. It will be appreciated that the communication device may also achieve the effects as may be achieved by the first device in the first to third aspects.

In an eighth aspect, the present application provides a communication device. The communication device is configured to implement the method performed by the second device in the first to third aspects. The communication device includes one or more processors, a transceiver, and a memory. For example, the transceiver is coupled to one or more processors, and the memory stores a computer program. For example, when one or more processors and transceivers in a communication device execute a computer program, the communication device performs the following operations:

Receiving a sensing detection trigger frame, wherein the sensing detection trigger frame is used for triggering a second device to send a first empty data packet (NDP), and the first NDP is used for sensing measurement;

transmitting the first NDP;

and receiving a second NDP sent by the first device, wherein a perception measurement result of the second device is determined based on the second NDP.

The specific description of the method performed by the second device may refer to the corresponding descriptions in the first aspect to the third aspect, which are not repeated herein. It will be appreciated that the communication device may also achieve the effects as may be achieved by the second device in the first to third aspects.

In a ninth aspect, the present application provides a communication system. The communication system includes the first device and the second device described in the above aspects. For example, a communication system includes a device that is aware of access point devices, a device that is aware of non-access point devices, and so on. The detailed description of the functions implemented by the communication system refers to the descriptions in the first aspect to the third aspect, and will not be repeated here.

In a tenth aspect, the present application provides a computer readable storage medium storing a computer program for execution by a processor to implement the method of any one of the first to third aspects and possible implementations of the first to third aspects.

In an eleventh aspect, the present application provides a chip system, the chip system comprising a processor and further comprising a memory for implementing the first to third aspects and the method according to any one of the possible implementation manners of the first to third aspects. The chip system may be formed of a chip or may include a chip and other discrete devices.

In a twelfth aspect, the application provides a computer program product comprising instructions which, when run on a computer, cause the computer to perform the method of any one of the above first to third aspects and possible implementations of the first to third aspects.

In a thirteenth aspect, embodiments of the present application provide another measurement method performed by a first device. Wherein the first device may be an access point AP. The first device generates a sensing measurement setup request frame carrying first ranging indication information for requesting the second device to perform ranging measurement in a sensing measurement process. The first device sends a perception measurement setup request frame to the second device.

In one possible implementation, after the first device sends the sensing measurement setup request frame to the second device, the first device receives the sensing measurement setup response frame.

In one possible implementation manner, the first ranging indication information is carried in a sensing measurement parameter element of a sensing measurement setup request frame.

In one possible implementation, the sensing measurement setup request frame also carries ranging measurement parameters,

the ranging measurement parameters are carried in the ranging measurement parameter elements newly added in the sensing measurement setup request frame, or,

and carrying a newly added ranging measurement parameter subfield in a sensing measurement parameter element of the sensing measurement establishment request frame.

In one possible implementation, the first device sends a sensing probe trigger frame, where the sensing probe trigger frame is used to trigger the second device to send a first null data packet NDP; the first NDP is used for performing sensing measurement and/or ranging measurement; the first device receives the first NDP and transmits a second NDP to the second device, wherein the second device's perception measurement and/or ranging measurement is determined based on the second NDP.

In one possible implementation, the second device is a sensing device;

the sensing detection trigger frame carries a measurement establishment identifier for sensing measurement; wherein,,

the measurement setup identity is carried in a first field and/or a second field in a common information field of the perceived probe trigger frame, or

And the measurement establishment identification is carried in a user information field of the sensing detection trigger frame.

In a possible implementation manner, the sensing detection trigger frame carries a measurement entity identifier for sensing measurement;

wherein the measurement entity identifies a first field and/or a second field carried in a common information field of the perceived probe trigger frame, or

And the measurement entity identifier is carried in a user information field of the sensing detection trigger frame.

In one possible implementation, before the first device sends the perceived probe trigger frame, the first device sends a perceived poll trigger frame to the second device; a first device receives a first response frame from the second device for the perceived poll trigger frame, the first response frame being used to confirm that the second device is engaged in the perceived measurement and/or ranging measurement.

In one possible implementation, the second device is a sensing device;

the sensing polling trigger frame carries a measurement establishment identifier for sensing measurement; wherein,,

the measurement establishment identification is carried in a first field and/or a second field in a public information field of the sensing polling trigger frame.

In a possible implementation manner, the sensing polling trigger frame carries a measurement entity identifier for sensing measurement;

wherein, the measurement entity identifier is carried in a first field and/or a second field in a public information field of the sensing polling trigger frame.

In one possible implementation, the first device sends a perception report trigger frame to the second device; the first device receives a second response frame to the perception report trigger frame, the second response frame including a perception measurement and/or a ranging measurement of the second device.

In one possible implementation, the second device is a sensing device;

the sensing report triggering frame carries a measurement establishment identifier for sensing measurement; wherein,,

the measurement setup identity is carried in a first field and/or a second field in a common information field of the perception report trigger frame, or

And the measurement establishment identification is carried in a user information field of the perception report triggering frame.

In a possible implementation manner, the sensing report trigger frame carries a measurement entity identifier for sensing measurement;

wherein the measurement entity identifies a first field and/or a second field carried in a common information field of the perceived report trigger frame, or

And the measurement entity identifier is carried in a user information field of the perception report triggering frame.

An association identifier associated with the sensing device;

second indication information for indicating the sensing device to perform sensing measurement and/or ranging measurement;

the measurement for perception establishes an identification;

the measurement entity for perception is identified.

In a possible implementation manner, the second indication information is carried in a user information field of a corresponding sensing device in the NDPA, or a special user information field in the NDPA, or a detection dialogue mark field in the NDPA;

the measurement establishment identifier is carried in a user information field of the corresponding sensing equipment in the NDPA, or in a special user information field in the NDPA, or in a detection dialogue mark field in the NDPA;

the measurement entity identifier is carried in a user information field of a corresponding sensing device in the NDPA, or in a special user information field in the NDPA, or in a detection dialogue mark field in the NDPA;

and the association identifier is carried in a user information field of the corresponding sensing equipment in the NDPA or in a special user information field in the NDPA.

In one possible implementation, the second device is a sensing device;

the sensing trigger frame carries second indication information, and the sensing trigger frame is the sensing detection trigger frame, or the sensing polling trigger frame, or the sensing report trigger frame;

the second indication information is used for indicating the sensing equipment to perform sensing measurement and/or ranging measurement;

the second indication information is carried in a user information field of the perception trigger frame, or a first field or a second field of a public information field.

In one possible implementation, the second response frame is a perception report frame;

when the sensing report frame includes sensing measurement results and ranging measurement results,

the sensing measurement result is carried in a sensing measurement report element of the sensing report frame, the ranging measurement result is carried in a ranging measurement element newly added in the sensing report frame, or,

the sensing measurement result is carried in a sensing measurement report element of the sensing report frame, and the ranging measurement result is carried in a ranging measurement report subfield newly added in the sensing measurement report element of the sensing report frame.

In one possible implementation, when the second response frame includes two sensing report frames, and the first sensing report frame includes sensing measurements, the second sensing report frame includes ranging measurements,

The sensing measurement result is carried in a sensing measurement report element of the first sensing report frame,

and the ranging measurement result is carried in a newly added ranging measurement element in the second sensing report frame, or is carried in a newly added ranging measurement report subfield in a sensing measurement report element of the sensing report frame, or is a Location Measurement Report (LMR) frame.

Through the method, the AP can request the sensing equipment to perform ranging measurement in the sensing measurement process, so that the function of the sensing equipment is enhanced, and the sensing equipment can perform ranging (for example, positioning) while sensing. And, a sensing trigger frame such as a sensing polling trigger frame, a sensing detection trigger frame, a sensing report trigger frame and the like is designed, and a field carrying information (such as a measurement entity identifier for sensing measurement, a parameter for ranging measurement and the like) for sensing measurement and/or ranging measurement in the sensing trigger frame is specifically designed, so that the sensing trigger frame can be used by a device with a sensing function for sensing measurement and/or ranging measurement based on triggering.

In a fourteenth aspect, embodiments of the present application provide another measurement method performed by a second device. Wherein the second device may be a sensing device. Responding to the sensing measurement establishment request frame, the second equipment generates a sensing measurement establishment response frame, wherein the sensing measurement establishment response frame carries second ranging indication information for requesting the first equipment to perform ranging measurement in the sensing measurement process; the second device sends the perception measurement setup response frame to the first device.

In one possible implementation, the second device receives the perception measurement setup request frame from the first device before the second device generates the perception measurement setup response frame.

In one possible implementation, after the second device sends the sensing measurement setup response frame to the first device, the second device receives a sensing measurement setup confirm frame from the first device.

In a possible implementation manner, the second ranging indication information is carried in a sensing measurement parameter element of the sensing measurement response frame.

In one possible implementation, the sensing measurement setup response frame also carries ranging measurement parameters,

the ranging measurement parameters are carried in the ranging measurement parameter elements newly added in the sensing measurement setup response frame, or,

and carrying a newly added ranging measurement parameter subfield in a sensing measurement parameter element of the sensing measurement establishment response frame.

In a possible implementation manner, the second device receives a sensing detection trigger frame, wherein the sensing detection trigger frame is used for triggering the second device to send a first empty data packet NDP; the first NDP is used for performing sensing measurement and/or ranging measurement; the second device sends the first NDP to the first device; the second device receives an empty data packet announcement (NDPA) sent by the first device, wherein the NDPA is used for informing the second device that the first device is to send the second NDP; the second device receives a second NDP sent by the first device, wherein the sensing measurement result and/or the ranging measurement result of the second device are determined based on the second NDP.

In one possible implementation, the second device is a sensing device;

In one possible implementation, a second device receives a perceived poll trigger frame before the second device receives a perceived probe trigger frame; the second device sends a first response frame to the first device for the perceived poll trigger frame, wherein the first response frame is used for confirming that the second device participates in the perceived measurement and/or ranging measurement.

In one possible implementation, the second device is a sensing device;

In one possible implementation, the second device receives a perception report trigger frame; the second device sends a second response frame to the first device for the sensing report trigger frame, the second response frame of the sensing report trigger frame including sensing measurements and/or ranging measurements of the second device.

In one possible implementation, the second device is a sensing device;

An association identifier associated with the sensing device;

the measurement for perception establishes an identification;

the measurement entity for perception is identified.

In one possible implementation, the second device is a sensing device;

By the method, the sensing equipment can request the AP to perform ranging measurement, so that the function of the AP is enhanced, and the AP can perform ranging (such as positioning) while sensing. And, a sensing trigger frame such as a sensing polling trigger frame, a sensing detection trigger frame, a sensing report trigger frame and the like is designed, and a field carrying information (such as a measurement entity identifier for sensing measurement, a parameter for ranging measurement and the like) for sensing measurement and/or ranging measurement in the sensing trigger frame is specifically designed, so that the sensing trigger frame can be used by a device with a sensing function for sensing measurement and/or ranging measurement based on triggering.

Drawings

Fig. 1 is a schematic diagram of a communication system according to an embodiment of the present application;

FIG. 2a is a schematic diagram of a process of sensing measurements based on a trigger mechanism;

FIG. 2b is a trigger-based sensing measurement scenario;

FIG. 3a is a schematic diagram of a procedure for ranging measurement based on a trigger mechanism;

FIG. 3b is a ranging measurement scenario based on a trigger mechanism;

fig. 4a is a measurement flow of hybrid sensing and ranging according to an embodiment of the present application;

fig. 4b is a schematic diagram of a sensing measurement setup request frame according to an embodiment of the present application;

FIG. 4c is a schematic diagram of a response frame for sensing measurement setup according to an embodiment of the present application;

FIG. 4d is a schematic diagram of a sub-field of a perception measurement parameter according to an embodiment of the present application;

fig. 4e is a schematic diagram of a ranging measurement parameter subfield according to an embodiment of the present application;

fig. 4f is a schematic diagram of a ranging measurement parameter element of a sensing measurement setup request frame according to an embodiment of the present application;

fig. 4g is a schematic diagram of a ranging measurement parameter element of a sensing measurement setup response frame according to an embodiment of the present application;

fig. 5a is a schematic diagram of a feedback phase of a measurement procedure of hybrid sensing and ranging according to an embodiment of the present application;

fig. 5b is a schematic diagram of another feedback phase of a measurement procedure of hybrid sensing and ranging according to an embodiment of the present application;

FIG. 5c is a schematic diagram of feedback of a sensing measurement result and a ranging measurement result using a sensing report frame according to an embodiment of the present application;

FIG. 5d is a schematic diagram of a perception report frame according to an embodiment of the present application;

fig. 5e is a schematic diagram of a sensing measurement report element according to an embodiment of the present application;

fig. 5f is a schematic diagram of a sensing measurement report subfield according to an embodiment of the present application;

FIG. 5g is a schematic diagram of feedback of a sensing measurement result and a ranging measurement result using two sensing report frames according to an embodiment of the present application;

FIG. 5h is a schematic diagram of feedback of a sensing measurement result and a ranging measurement result using a sensing report frame according to another embodiment of the present application;

FIG. 6 is a schematic diagram of a trigger frame;

FIG. 7 is a schematic diagram of a common information field of a trigger frame;

FIG. 8 is a diagram of a trigger type field of a trigger frame;

FIG. 9 is a schematic diagram of a trigger related common information field of a trigger frame;

FIG. 10a is a diagram of a sub-category of a ranging trigger frame;

FIG. 10b is a schematic diagram of a sub-category of a perception trigger frame according to an embodiment of the present application;

FIG. 10c is a schematic diagram of an extended trigger related public information field according to an embodiment of the present application;

FIG. 11 is a schematic diagram of a user information field of a trigger frame;

fig. 12a is a schematic diagram of a null data packet NDPA;

FIG. 12b is a schematic diagram of another NDPA according to an embodiment of the present application

FIG. 13 is a schematic diagram of a measurement method based on triggering according to an embodiment of the present application;

FIG. 14 is a schematic diagram of a non-trigger based measurement method according to an embodiment of the present application;

FIG. 15a is a schematic diagram of a non-triggered based perception measurement;

FIG. 15b is a schematic diagram of another trigger-based measurement method according to an embodiment of the present application;

FIG. 15c is a schematic diagram of yet another trigger-based measurement method according to an embodiment of the present application;

fig. 16 is a schematic diagram of a communication device according to an embodiment of the present application;

fig. 17 is a schematic diagram of a communication device according to an embodiment of the present application.

Detailed Description

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

The embodiment of the application provides a measuring method based on the communication system shown in fig. 1. The method designs a class of perception trigger frames, and can enable the class of perception trigger frames to be identified by the equipment supporting perception, so that the equipment supporting perception can have the function of perception measurement based on triggering. The communication system 100 shown in fig. 1 includes at least a sensing initiator (e.g., an Access Point (AP) device) and a sensing responder (e.g., a Station (STA) device, also referred to as a non-access point (non-AP STA) device). Fig. 1 illustrates an example where one is a aware AP101 and the other is a aware non-AP STA 102.

1. Related concepts of embodiments of the application

1. Communication system

In the present application, the communication system may be a wireless local area network (wireless local area network, WLAN) or cellular network, or other wireless communication system supporting a sensing procedure and/or a ranging procedure. Embodiments of the present application are mainly described by way of example in the deployment of IEEE 802.11 networks, such as 802.11a/b/g standard, 802.11n standard, 802.11ac standard, 802.11ax standard, or the next generation thereof, such as 802.11be standard, wi-Fi 7 or EHT, and further such as 802.11be next generation, wi-Fi 8, 802.11bf, SENSING or more. While aspects of the application may be extended to other networks employing various standards or protocols, such as BLUETOOTH, high performance wireless LANs (high performance radio LAN, HIPERLAN), a wireless standard similar to the IEEE 802.1 standard used primarily in europe, as well as Wide Area Networks (WANs), personal area networks (personal area network, PANs) or other now known or later developed networks. Accordingly, the various aspects provided by the present application may be applicable to any suitable wireless network, regardless of the coverage area and wireless access protocol used.

2. Access point device and non-access point device

In the embodiment of the application, the non-APSTA has a wireless receiving and transmitting function, can support 802.11 series protocols, and can communicate with an AP or other non-AP STAs. For example, the non-AP STA may be any user communication device that allows a user to communicate with an AP and thus with a WLAN, such as, but not limited to, a tablet, desktop, laptop, notebook, ultra-mobile personal computer, UMPC, handheld computer, netbook, personal digital assistant (personal digital assistant, PDA), cell phone, etc., or an internet of things node in the internet of things, or an in-vehicle communication device in the internet of things, etc. Alternatively, the non-AP STA may also be a chip and a processing system in these terminals.

In the embodiment of the application, the AP is a device for providing service for the non-AP STA, and can support 802.11 series protocols. For example, the AP may be a communication entity such as a communication server, a router, a switch, a bridge, or the AP may include various types of macro base stations, micro base stations, relay stations, or the like, and of course, the AP may also be a chip and a processing system in these various types of devices, so as to implement the methods and functions of the embodiments of the present application.

3. Perception measurement

Fig. 2a is a process of sensing (sensing) measurement based on a trigger-based (TB) mechanism. This trigger mechanism based process of perceptual measurement may be applied in a system scenario as shown in fig. 2 b. In the trigger-based sensing measurement procedure, an AP (e.g., AP in fig. 2 b) is a sensing initiator, and non-AP STAs (e.g., STAs 1-STA3 in fig. 2 b) are sensing respondents. Wherein, the perception initiating terminal (sensing initiator) refers to a site initiating a perception process, and the perception responding terminal (sensing responder) refers to a site participating in a perception process initiated by the perception initiating terminal. For example, the trigger-based sensing measurement may include, but is not limited to, a polling phase (polling phase), a measurement probing phase (measurement sounding phase), and a measurement reporting phase (measurementreporting phase), among other phases. During the polling phase, the AP may send a poll trigger frame (pollingtrigger frame) to the non-AP STAs to confirm that the polled stations (non-AP STAs) may participate in measurements and feedback in the current measurement entity. In the measurement probing phase, the AP may probe a trigger frame (sounding trigger) to the non-AP STA to trigger the non-AP STA to transmit a sensing null data packet (sensingnull data packet, sensing NDP), and measure the transmitted sensing NDP to sense. Optionally, to enhance the perceived effect, the AP may further inform the corresponding non-AP STA that it will send a perception NDP (sensing NDP) by itself immediately thereafter through a null packet announcement (null data packet announcement, NDPA). Wherein the NDPA is used to inform a non-AP STA listening to the perceived NDP of configuration information related thereto, the non-AP STA may measure the perceived NDP transmitted later to learn channel information (e.g., including channel state information (channel state information, CSI)). Finally, during the measurement reporting phase, the AP may send a report trigger frame (reporttriggerframe) to the non-AP STA to cause the non-AP STA to report the measurement result to the AP in a sensory feedback (sensingfeedback) manner.

4. Distance measurement

Fig. 3a is a procedure for ranging (ranging) measurement based on a trigger-based (TB) mechanism. This procedure of ranging measurement based on the trigger mechanism may be applied in the system scenario as shown in fig. 3 b. In the course of the trigger-based ranging measurement, a non-AP STA (e.g., STA in fig. 3 b) wants to obtain its own location from its distance to the AP (e.g., AP1-AP3 in fig. 3 b). Among other things, for example, the trigger-based ranging measurements may include, but are not limited to, a polling phase (polling phase), a measurement probing phase (measurement sounding phase), and a measurement reporting phase (measurementreporting phase), among other phases. In the polling phase, the AP may send a ranging poll trigger frame (TF ranging pollframe) to the non-AP STA to confirm that the polled station (non-AP STA) may participate in the current measurement and feedback. In the measurement probe phase (measurement sounding phase), the AP may trigger the non-AP STA to transmit a ranging trigger NDP (TB Ranging NDP) by ranging a poll trigger frame (TF ranging soundingframe). According to the transmitted ranging trigger NDP, the non-AP STA can know the sending time of the ranging trigger NDP (t 1), and when the ranging trigger NDP arrives at the AP, the arrival time thereof is correspondingly obtained (t 2). The AP then informs the corresponding non-AP STA that it will send a ranging NDP (ranging NDP) by itself immediately thereafter through the NDPA, which is used to inform the non-AP STA about configuration information that needs to listen for the ranging NDP. The distance measurement NDP also corresponds to a transmission time (t 3) and an arrival time (t 4). Finally, during the measurement reporting phase, the AP will send a location measurement report (location measurement report, LMR) frame to the non-AP STA. In the LMR frame, t2 and t3 obtained at the AP are included. The non-AP STA may obtain a straight line distance from the AP according to the four time stamps t1, t2, t3 and t4, thereby implementing ranging measurement.

5. Mixed sensing and ranging measurement flow

Fig. 4a is a measurement flow of hybrid sensing and ranging according to an embodiment of the present application. In the hybrid measurement procedure, the AP performs both sensing measurement and/or ranging measurement with the device supporting sensing and ranging measurement with the device supporting ranging only. For example, the measurement procedure of the hybrid sensing and ranging may include, but is not limited to, a measurement setup phase (measurement setup phase), a measurement phase (measurementphase), and a feedback phase (feedback phase), wherein the measurement phase may include a polling phase (polling phase) and a measurement probing phase (measurement sounding phase) described in the process of sensing measurement and ranging measurement.

The AP may perform parameter negotiation (i.e., negotiationphase) with the sensing device and the ranging device, respectively, prior to the measurement phase. In the subsequent measurement process, the sensing device and the ranging device are respectively used for measuring the negotiated parameters. For example, the AP shown in fig. 4a may negotiate with the sensing device before negotiating with the ranging device, and then begin performing the measurement procedure. In this measurement process, the sensing measurement and the ranging measurement described above are mixed. It should be noted that, in the processes of sensing measurement and ranging measurement, the trigger frame, NDPA and the like sent by the AP to the sensing non-AP STA and the ranging non-AP STA can be identified by the sensing non-AP STA and the ranging non-AP STA at the same time, so that the AP and the sensing device perform the sensing measurement and the ranging measurement at the same time, thereby improving the efficiency of the AP. In the feedback stage after the measurement process, the AP may first feed back the ranging measurement result to the ranging device, and then ask the sensing device to feed back the sensing measurement result to the AP through a sensing feedback frame (sensing feedback). Note that since the AP is a sense initiator, it wants to obtain a sense measurement result, and thus the non-AP STA needs to feed back the sense measurement result to the AP. For ranging, the non-AP STA wants to know its own position, so the AP needs to feed back the corresponding ranging measurement result to the non-AP STA, but the AP itself does not need the ranging measurement result. Alternatively, the AP may not require the non-AP STA to feed back the sensing measurement result to the AP, and the non-AP STA may process the sensing measurement result by itself. For ranging, the AP may require the non-AP STA to feed back the corresponding ranging measurements to the AP.

It will be appreciated that fig. 4a is only an implementation of a hybrid procedure, and the hybrid procedure may be implemented in other manners, for example, in the early parameter negotiation process, the AP may perform parameter negotiation with the ranging device first, and then perform parameter negotiation with the sensing device. In the final feedback stage, the AP may trigger the sensing device to feedback the sensing measurement result, and then send the ranging measurement result to the ranging device.

Alternatively, if the sensing device declares itself to both sense and measure the range to the AP in the negotiation phase, then the AP also needs to feed back the ranging measurement result to the sensing device in the feedback phase. In a possible implementation, the feedback phase may be represented as fig. 5a, and the ap may place the ranging measurement result of the sensing device and the ranging measurement result of the ranging device in the same LMR frame and send the ranging measurement result to the sensing device and the ranging device, respectively. The sensing device may read the corresponding ranging measurements, and the ranging device may also read the corresponding ranging measurements. In another possible implementation manner, the feedback phase may be represented as fig. 5b, where the AP may place the ranging measurement result of the sensing device and the ranging measurement result of the ranging device in two LMR frames respectively and send the two LMR frames to the sensing device and the ranging device respectively, and the order in which the two LMR frames are sent by the AP is not limited in the embodiment of the present application. For the sensing device, the embodiment of the application does not limit whether the AP sends the ranging measurement result first or triggers the sensing measurement result first.

Wherein the AP performs parameter negotiation with the sensing device and the ranging device, respectively, before the measurement phase, and for the sensing device, the process may also be referred to as a sensing measurement setup phase (sensing measurement setupphase).

In one possible implementation, the AP may require ranging measurements during the sensing measurement setup phase. In this case, the AP may negotiate with the sensing device in a sensing measurement setup phase, and the negotiation process may include the steps of:

the AP sends a sensing measurement establishment request frame to a non-AP STA;

the non-AP STA sends a awareness measurement setup response frame to the AP.

In this embodiment, the sensing measurement setup request frame is used for parameter negotiation between the AP and the non-AP STA, and the sensing measurement setup response frame is used for confirming the parameter negotiation results of the AP and the non-AP STA.

Fig. 4b illustrates a frame format of a sensing measurement setup request frame (sensing measurement setup request frame), which includes fields such as category (category), public action (public), dialog token (dialog token), measurement setup identifier (measurementsetup ID), DMG sensing measurement setup element (DMG sensingmeasurementsetupelement), and sensing measurement parameter element (sensing measurement element). Fig. 4c is a frame format of a sensing measurement setup response frame (sensing measurement setup response frame), similar to the frame format of the sensing measurement setup request frame, including fields such as category, public action, sounding dialog token, status code (status code), DMG sensing measurement setup element, sensing measurement parameters element, etc.

When the AP requests ranging in the sensing process, the AP may carry first ranging indication information in sensing measurement setup request frame, where the first ranging indication information may specifically be carried in the sendmeasurementparameter of sensing measurement setup request frame or sensing measurement parameters field (sensing measurement parameter subfield) in the sendmeasurementparameter of sensing measurement setup request frame, and sensing measurement parameters field is shown in fig. 4 d. The first ranging indication information may be indicated by one bit, and if the value of the one bit is 0, it indicates that the AP does not require ranging measurement; if the value of the one bit is 1, it indicates that the AP requires ranging measurements. For example, an example of an indication with one bit is shown in fig. 4d, and a subfield of a ranging request may be added in sensing measurement parameters field. It will be appreciated that the indication may also be in a multiple bit manner, the manner of indication being similar to that of one bit, and the application is not limited thereto. Note that when the AP requires ranging measurements, the sensing transmitter and serving receiver in fig. 4d need to be set to 1 simultaneously.

The present application is exemplified in a manner that the first ranging indication information is one bit, and when the value of the first ranging indication information is 1, it indicates that the AP requests to perform ranging measurement in the sensing process, and the AP needs to carry ranging measurement parameters in the sensing measurement setup request frame (sensing measurement setup request frame) as shown in fig. 4 b. The manner in which the AP carries the ranging measurement parameters in the sensing measurement setup request frame may include, but is not limited to, the following design manners:

mode one: the ranging measurement parameters may be carried in the added ranging measurement parameters field of the sendmeasurementparameter element of sensing measurement setup request frame, as shown in fig. 4 e.

Mode two: the ranging measurement parameters may be carried in the newly added field of sensing measurement setup request frame, as shown in fig. 4f, with the ranging measurement parameter elements being added sensing measurement setup request frame (ranging measurement parameters element).

When the value of the first ranging indication information is 0, that is, the AP does not require ranging measurement, sensing measurement setup request frame does not include the ranging measurement parameters described in the above manner.

In another possible implementation, the sensing device may require ranging during the sensing measurement setup phase. In this case, the sensing device may negotiate with the AP during the sensing measurement setup phase, and the negotiation process may include the steps of:

The AP sends a sensing measurement establishment request frame to a non-AP STA;

the non-AP STA sends a perception measurement establishment response frame to the AP;

the AP sends a sensing measurement setup confirm frame to the non-AP STA.

In this embodiment, a sensing measurement setup request frame is used for parameter negotiation between the AP and the non-AP STA, and a sensing measurement setup confirm frame is used for confirming the parameter negotiation results of the AP and the non-AP STA.

Since the sensing measurement setup request frame (sensing measurement setup request frame) and the sensing measurement setup response frame (sensing measurement setup response frame) have the same sensing measurement parameters element, when the sensing device requires ranging in the sensing process, the sensing device may carry second ranging indication information in sensing measurement setup response frame, where the second ranging indication information may be specifically carried in the sensing measurement parameter component of sensing measurement setup response frame or sensing measurement parameters field (sensing measurement parameter subfield) in the sensing measurement parameter component of sensing measurement setup response frame, as shown in fig. 4 d. The second ranging indication information may be indicated by one bit, and if the value of the one bit is 0, it indicates that the sensing device does not require ranging measurement; if the value of the one bit is 1, it indicates that the sensing device requires ranging measurement. For example, an example of an indication with one bit is shown in fig. 4d, and a subfield of a ranging request may be added in sensing measurement parameters field. It will be appreciated that the indication may also be in a multiple bit manner, the manner of indication being similar to that of one bit, and the application is not limited thereto. It should be noted that sensing transmitter and the sending receiver in fig. 4d need to be set to 1 simultaneously when the sensing device requires ranging measurement.

The present application is exemplified in a manner that the second ranging indication information is one bit, and when the value of the second ranging indication information is 1, it indicates that the sensing device requests to perform ranging measurement in the sensing process, and the sensing device needs to carry parameters for ranging measurement in a sensing measurement setup response frame (sensing measurement setup response frame) as shown in fig. 4 c. The manner in which the sensing device carries the ranging measurement parameters in the sensing measurement setup response frame may include, but is not limited to, the following design approaches:

mode one: the ranging measurement parameters may be carried in the added ranging measurement parameters field of the sendmeasurementparameter element of sensing measurement setup response frame, as shown in fig. 4 e.

Mode two: the ranging measurement parameters may be carried in the newly added field of sensing measurement setup response frame, as shown in fig. 4g, with the ranging measurement parameter elements being newly added at sensing measurement setup response frame (ranging measurement parameters element).

When the value of the second ranging indication information is 0, that is, the sensing device does not require ranging measurement, sensing measurement setup response frame does not include the ranging measurement parameters described in the above manner.

Note that in this embodiment, the sensing measurement setup confirm frame (sensing measurement setup confirm frame) is used to inform the sensing device whether the AP agrees with the ranging measurement request; if agreeing, the sensing device AP may also be informed of the information such as the ranging measurement window allocated by the sensing device AP. The frame structure of the sensing measurement setup confirm frame (sensing measurement setup confirm frame) is similar to that of the sensing measurement setup response frame (sensing measurement setup response frame), and will not be described here.

In yet another possible implementation, the ranging measurement parameters negotiated in the sensing measurement setup phase (sensing measurement setupphase) may include, but are not limited to, information of whether to feed back ranging measurement results, time of arrival (TOA), angle of arrival (AOA), instant or delayed feedback, ranging measurement window, AP time synchronization counter, etc. Wherein ranging measurement parameters element can be contained in sensing measurement setup request frame or sensing measurement setup response frame. When ranging measurement parameters element is used to carry the ranging measurement parameters, ranging measurement parameters element may be in the format shown in table 1:

Table 1: ranging Measurement Parameters element

In particular, the ranging measurement parameter control and ranging measurement parameter sub-elements are used to carry information about the ranging measurement window. For example, ranging Measurement Parameters Control field shown in table 1 may be in the format shown in table 2:

table 2: ranging Measurement Parameters Control field

When the value of Availability Window Present in table 2 is 1, which indicates that the ranging measurement and the sensing measurement use different windows, ranging Measurement Parameters Subelement in table 1 exists, the format shown in table 3 may be adopted:

table 3: ranging Measurement Parameters subelement

It should be understood that fig. 5a is only an example in which the AP feeds back the ranging measurement result to the sensing device and the ranging device, and fig. 5b is only an example in which the LMR frame is used to feed back the ranging measurement result to the sensing device and the LMR frame is used to feed back the ranging measurement result to the ranging device, which is not limited to the manner in which the AP feeds back the ranging measurement result and/or the sensing measurement result in the present application. The flow of the feedback phase is described in detail below.

Specifically, when the AP needs to feed back the ranging measurement result to the sensing device, or when the sensing device needs to feed back the ranging measurement result and/or the sensing measurement result to the AP, it is necessary to consider how to feed back the ranging measurement result and/or the sensing measurement result.

In one possible implementation, the AP may require feedback of ranging measurements and/or sensing measurements at the sensing device during a sensing measurement reporting phase (sensing measurement report phase). In this case, the AP requires the sensing device to feedback the measurement ranging result and/or the sensing measurement result may include, but is not limited to, the following ways:

mode one: the AP sends a sensing report trigger frame (sensing report trigger frame) to the sensing equipment, and the sensing report trigger frame is used for triggering the sensing equipment to feed back a sensing measurement result and a ranging measurement result to the AP; correspondingly, the sensing device feeds back the sensing measurement result and the ranging measurement result to the AP using one sensing report frame (for example, the sensing report frame is shown in fig. 5 c), as shown in fig. 5 c.

Wherein the sensing report trigger frame may include second indication information for indicating the sensing device to perform the sensing measurement and/or the ranging measurement. The frame format of the sensing report frame may be in the frame format of a sensing measurement report frame (sensing measurement report frame) as shown in fig. 5d, and includes fields of category, publicaction, dialogtoken, sensing measurement report (sensing measurement report), etc. Specifically, the sensing report frame carries ranging measurements, which may include:

For example, on the basis of the sensing measurement report frame shown in fig. 5d, an element is added for carrying the ranging measurement result. Suppose a new one Ranging Measurement Report element is added, dedicated to carrying ranging measurements, as shown in fig. 5 e. In this case, there may be a bit in Sensing Measurement Report frame indicating that the ranging measurements are contained in the report frame, e.g., the bit may be represented by a ranging measurement report (Ranging Measurement Report). On the basis of fig. 5e, a perception measurement report element control (Sensing Measurement Reportelement control) field may be added, as shown in table 4. The sensing measurement report element control field may carry ranging measurement report bits as shown in table 5. The format of Sensing Measurement Report frame is shown in table 4:

table 4: sensing Measurement Report frame

Among them, sensing Measurement Report Control field shown in table 4 may be in the format shown in table 5:

table 5: sensing Measurement Report Controlfield

For another example, a Ranging Measurement Report field (sensing measurement report subfield) is added to Sensing Measurement Report element of the sensing measurement report frame shown in fig. 5d to carry the ranging measurement result, as shown in fig. 5 f.

Mode two: the AP sends a sensing report trigger frame (sensing report trigger frame) to the sensing equipment for two times respectively, and the sensing report trigger frame is used for triggering the sensing equipment to feed back a sensing measurement result and a ranging measurement result to the AP; correspondingly, the sensing device feeds back the sensing measurement result and the ranging measurement result to the AP by using two sensing report frames, as shown in fig. 5 g.

When one sensing report triggering frame is used for triggering sensing equipment to feed back sensing measurement results, the sensing report triggering frame can comprise second indication information, and the value of the second indication information is a first value; when another sensing report trigger frame is used to trigger the sensing device to feed back the ranging measurement result, the sensing report trigger frame may include second indication information, and the value of the second indication information is a second value.

Similar to the specific implementation of the sensing report frame in the first mode, the frame format of the sensing report frame in the second mode may also be the frame format of the sensing measurement report frame (sensing measurement report frame) shown in fig. 5 d. For example, on the basis of the sensing measurement report frame shown in fig. 5d, an element is added for carrying the ranging measurement result. Suppose a new one Ranging Measurement Report element is added for carrying ranging measurements exclusively, as shown in fig. 5 e. In this case, ranging Measurement Report element can take the format shown in table 6:

Table 6: ranging Measurement Report element

Wherein Ranging Measurement Report Control shown in table 6 may be in the format shown in table 7:

table 7: ranging Measurement Report Control

Wherein Ranging Measurement Report shown in table 6 may be in the format shown in table 8:

table 8: ranging Measurement Report

It should be noted that the sensing measurement setup identities and the measurement entity identities in tables 7 and 8 are used to indicate through which sensing measurement the ranging measurement result is obtained.

As another example, a Ranging Measurement Report field is added to the Sensing Measurement Report element of the sensing report frame to carry the ranging measurements, as shown in fig. 5 f.

In another possible implementation, the sensing device may require feedback of ranging measurements at the AP during a sensing measurement reporting phase (sensing measurement report phase), comprising the steps of:

the AP sends a Ranging Report (Ranging Report) frame to the sensing device, the Ranging Report including Ranging measurements obtained at the AP. The AP may also send a sensing report trigger frame (sensing report trigger) to the sensing device, for triggering the sensing device to feed back a sensing measurement result to the AP; correspondingly, the sensing device feeds back the sensing measurement result to the AP by using a sensing report frame, as shown in fig. 5 h. The ranging measurement result report frame may be in a format similar to that of fig. 5b, tables 4 to 8, or an LMR frame, and the present application is not limited thereto. It should be noted that if the sensing service requires the sensing device to feedback the sensing result to the AP, the process of the AP feeding back the ranging measurement result may occur before or after the sensing result feedback, which is not limited by the present application.

It will be appreciated that the names of some of the frames depicted in figures 2a to 5h may be different, but represent the same frame. For example, the gating trigger in FIG. 4a may also be referred to as sensing polling trigger, the sounding trigger in FIG. 4a may also be referred to as sensing sounding trigger, the report trigger in FIG. 4a may also be referred to as sensing reporting trigger, and the sending feedback in FIG. 2a or FIG. 4a may also be referred to as sending report.

6. Trigger frame

Fig. 6 is a standard trigger frame, and a ranging poll trigger frame, a ranging probe trigger frame, and a ranging report trigger frame used in ranging measurements are all designed based on the format. In the embodiment of the present application, a sensing poll trigger frame, a sensing probe trigger frame, and a sensing report trigger frame used in sensing measurement are designed based on the trigger frame shown in fig. 6. To implement the design in the embodiment of the present application, the common information field (common fo) and the user information field (userinfost) in the standard trigger frame shown in fig. 6 are mainly improved. It should be understood that other fields shown in fig. 6 (such as frame control (frame control) and the like, which are not described in detail in the embodiment of the present application) are similar to the definitions in the existing protocol, and the present embodiment is not limited thereto.

(1) Common information field (common): the format of the common information field as shown in fig. 7, the common information fields of the ranging poll trigger frame, the ranging probe trigger frame, and the ranging report trigger frame used in the ranging measurement all contain at least 64 bits (bits) of B0 to B63, i.e., 8 bytes (bytes). Similarly, the common information field of the sensing poll trigger frame, the sensing probe trigger frame and the sensing report trigger frame designed in the embodiment of the application also comprises at least 64 bits. It should be understood that other fields shown in fig. 7 (such as uplink Length (UL Length) and the like, which are not described in detail in the embodiment of the present application) are similar to the definition in the existing protocol, and the present embodiment is not limited thereto.

A. Trigger type (triggeringtype) field: of the common information fields shown in fig. 7, 4 bits of B0 to B3 belong to a trigger type (triggertype) field for indicating the category of the trigger frame. The 4bit may represent 16 values, each representing a category. In the existing protocol, when the trigger type field value is 8, which indicates that the trigger frame is a ranging trigger frame, the ranging device may identify the value and use the trigger frame to perform ranging measurements, as shown in fig. 8. In the embodiment of the present application, the same value, i.e. 8, is used to indicate that the trigger frame is a perceived trigger frame. That is, in the embodiment of the present application, when the value of the trigger type field of the trigger frame is 8, the ranging device may identify the trigger frame as a ranging trigger frame, and the sensing device may identify the trigger frame as a sensing trigger frame, thereby being beneficial to implementing the hybrid measurement procedure.

B. Trigger related public information field (trigger dependent common info): of the common information fields shown in fig. 7, the variable fields following B63 are trigger-related common information fields for carrying information about this type of trigger frame. The trigger related public information field is also referred to as a second field in the public information field in the embodiment of the present application. For example, the format of the trigger related common information field in the existing ranging trigger frame is shown in fig. 9, and is composed of 8 bits (1 byte) in total. Wherein, for the existing ranging trigger frame, the information about the ranging trigger frame may be carried in a token (token) field of the trigger related common information field. Whereas the information about the perceptual trigger frame (for example, assumed to be 1bit, which is the second indication information described in the later embodiments) designed in the embodiment of the present application may be carried in B4 of the trigger related common information field.

Wherein, in the trigger related common information field shown in fig. 9, B0-B3 are used to indicate ranging trigger frame subcategories (ranging trigger frame), that is, B0-B3 are used to represent first indication information described in the embodiments below. Wherein 4 bits of B0-B3 may be used to represent 16 subcategories, the specific information is shown in fig. 10 a. For example, when the trigger frame is a polling trigger frame, the values represented by B0 to B3 are 0. When the trigger frame is a probe trigger frame, the values represented by B0 to B3 are 1. In the embodiment of the present application, the sub-category of the sensing trigger frame is designed with reference to fig. 10a, and specific information is shown in fig. 10 b. In fig. 10B, when the sense trigger frame is a sense poll trigger frame, the values represented by B0 to B3 are 0. When the sensing trigger frame is a sensing probe trigger frame, the values represented by B0 to B3 are 1. Alternatively, if the AP does not support awareness by proxy (SBP), then the value 4 is a reserved value. The trigger related public information field shown in fig. 9 further includes a reserved field (reserved) of 1 bit. It should be noted that SBP for Sounding in the present application may also be referred to as Sounding for SBP.

Optionally, the trigger related public information field shown in fig. 9 may be further extended, for example, using trigger dependent common info in fig. 6, to two bytes, which are used to place the measurement setup identifier (measurement setup ID) for sensing measurement and the measurement entity identifier (measurement instance ID) for sensing measurement, which are described in the later embodiments, respectively, as shown in fig. 10 c.

C. Uplink high efficiency signal A2reserved (uplink high efficiency signal A2reserved, UL HE-SIG-A2 reserved) field: in the common information field shown in fig. 7, B54-B63 belongs to the reserved field, that is, for the existing ranging trigger frame, the information about the ranging trigger frame is not carried in B54-B63, and the ranging device may not need to read the information in the reserved field. The UL HE-SIG-A2reserved field (including B54-B62) plus one reserved bit (B63) is also referred to as the first field in the common information field in the embodiment of the present application. Whereas the information about the sense trigger frame (for example, assuming 1 bit, which is the second indication information described in the later embodiments) designed in the embodiment of the present application may be carried in B63. Also, information for the sensing measurement, such as a measurement setup identifier (measurementsetup ID) for the sensing measurement and a measurement entity identifier (measurementinstance ID) for the sensing measurement, which are described in the later embodiments, may be carried in the B54-B62.

(2) User information field (userinfolist): the format of the user information field is shown in fig. 11, and the user information fields of the ranging poll trigger frame, the ranging probe trigger frame, and the ranging report trigger frame used in the ranging measurement include 40 bits of B0-B39. Similarly, the common information fields of the sensing poll trigger frame, the sensing probe trigger frame and the sensing report trigger frame designed in the embodiment of the present application also at least comprise B0-B39. Whereas the information about the sense trigger frame (for example, assuming 1bit, which is the second indication information described in the following embodiments) designed in the embodiment of the present application may be carried in the 1bit reserved field (B39) or the 2bit reserved field (B24 and B25) of the user information field. For example, information for the sensing measurement, such as a measurement setup identity (measurementsetup ID) for the sensing measurement and a measurement entity identity (measurementinstance ID) for the sensing measurement, which are described in the later embodiments, may be carried in the B12-B20 of the user information field of the sensing probe trigger frame. It should be understood that other fields shown in fig. 11 (such as the uplink target received power (UL target receive power) and other fields not described in detail in the embodiment of the present application) are similar to the definition in the existing protocol, and the present embodiment is not limited thereto.

7、NDPA

Fig. 12a is a frame format of the HE NDPA, including a sounding dialog token field (sounding dialog), a plurality of user information fields, and the like. In the 802.11az standard protocol, the ranging NDPA is designed according to the HE NDPA of fig. 12a, and the embodiment of the present application is also designed based on fig. 12a as well. The perceived NDPA in embodiments of the present application may include, but is not limited to, the following design approaches:

mode one: the AP carries information for sensing measurement, such as a measurement setup identifier (measurementsetup ID) for sensing measurement and a measurement entity identifier (measurementinstance ID) for sensing measurement described in the later embodiments, in a user information field (STA Info) of the corresponding sensing device, and places information for ranging measurement in the user information field of the corresponding ranging device. Wherein each user information field includes an Association Identifier (AID), and each device can determine whether the field is addressed to itself according to the AID.

Mode two: the AP may add a special user information field (specaluserinfo) in the NDPA as shown in fig. 12 b. A measurement setup identity (measurementsetup ID) for sensing measurements and a measurement entity identity (measurementinstance ID) for sensing measurements, such as described in the embodiments below, are carried in this special user information field, while information for ranging measurements is still placed in the user information field of the corresponding ranging device.

Mode three: the AP may carry a measurement setup identity (measurementsetup ID) for the sensing measurement and a measurement entity identity (measurementinstance ID) for the sensing measurement, for example, as described in the later embodiments, in a sounding dialogtoken field. The ranging device may use the sounddialogtoken field as its own sounddialogtoken field.

The AP may transmit NDP immediately after transmitting the perceived NDPA. The sensing device performs sensing measurement according to the received NDP, and the ranging device performs ranging measurement according to the received NDP. It should be understood that other fields shown in fig. 11 (such as frame control (frame control) and the like, which are not described in detail in the embodiment of the present application) are similar to the definitions in the existing protocol, and the present embodiment is not limited thereto.

2. The embodiment of the application provides a measurement method based on triggering (including a sensing measurement scene of sensing equipment)

1. Measurement and detection stage (measurement sounding phase)

Fig. 13 is a schematic flow chart of a measurement method based on triggering provided by the application. The measurement method is realized by interaction between the first equipment and the second equipment and comprises the following steps:

s101, the first device sends a sensing detection trigger frame to the second device.

S102, the second device sends a first NDP to the first device.

In this embodiment, the first device refers to a aware AP and the second device refers to a aware non-AP STA. That is, the second device is a sensing device.

The sensing detection trigger frame is used for triggering the second device to send the first empty data packet NDP. The first NDP is used to make a perception measurement. For example, in the sensing procedure shown in fig. 2a, the AP may send a sensing probe trigger frame to a sensing non-AP STA (i.e., sensing device) and to a sensing device. Correspondingly, the sensing equipment receives the sensing detection trigger frame and executes a corresponding sensing measurement flow.

For example, for a sensing device, the sensing probe trigger frame is used to trigger a second device to send a sensing NDP for making sensing measurements to a first device. That is, the first NDP is a perceived NDP. It may be appreciated that, if the first NDP is a perceived NDP that the second device (e.g., the perceived non-AP STA) transmits to the first device (e.g., the perceived AP), the AP may measure the first NDP to obtain CSI of the non-AP STA to AP channel. That is, the first NDP is used to make a perception measurement.

In a possible implementation manner, the sensing detection trigger frame carries first indication information, the first indication information is carried in a second field in a public information field of the sensing detection trigger frame, and the value of the first indication information in the sensing detection trigger frame is a first value. It can be understood that the first indication information is indication information indicating a sub-category (sensinggtriggersbype) of the perceived trigger frame, and is carried in a trigger related public information field. For example, the first indication information in the sensing probe trigger frame has a value of 2 (i.e., the first value is 2), and when the second device receives the trigger frame, the trigger frame may be identified as the sensing probe trigger frame.

In a possible implementation, the sensing probe trigger frame carries a measurement setup identity (measurementsetup ID) for sensing measurements and a measurement entity identity (measurementinstance ID) for sensing measurements. The length of measurementsetup ID and measurementinstance ID (i.e., occupied bits) is not limited in this embodiment of the present application, and for example, it is assumed that measurementsetup ID has a length of 3bit,measurementinstance ID and 5 bits.

In this embodiment, the second device is a sensing device, that is, a trigger-based sensing measurement procedure as shown in fig. 2a is performed between the first device and the second device. Since no ranging device is present, the perceived sounding trigger frame may not consider compatible ranging devices. The manner in which the information is carried in the sensing probe trigger frame in this embodiment may include, but is not limited to, the following manners:

mode one: the measurement establishment identification is carried in a first field and/or a second field in a public information field of a sensing detection trigger frame, or is carried in a user information field of the sensing detection trigger frame.

For example, measurementsetup ID may be carried in the trigger related common information field of the sense probe trigger frame (as shown in fig. 9, e.g., B5-B7 of fig. 9), or may be carried in the first field of the common information field of the sense probe trigger frame (as shown in fig. 7, e.g., B54-B62 of fig. 7), or may be carried in the user information field of the sense probe trigger frame (as shown in fig. 11, e.g., B12-B20 of fig. 11). And, the length of the trigger related public information field in the first mode is less than or equal to 8 bits, that is, the length of the sensing detection trigger frame is the same as the length of the ranging detection trigger frame, and the length of the trigger related public information field is not expanded, so that the problem that the ranging equipment cannot identify the sensing detection trigger frame due to the expansion of the length of the sensing detection trigger frame is avoided.

Alternatively, when the length of the measurement setup identifier is longer, the measurement setup identifier may be carried in both the first field and the second field. For example, assume that measurementsetup ID is 5 bits in length, 3 bits of which are carried in the trigger related common information field of the sense probe trigger frame (e.g., B5-B7 of fig. 9), and another 2 bits are carried in the first field of the common information field of the sense probe trigger frame (e.g., B54 and B55 of B54-B62 of fig. 7).

Mode two: the measurement entity identifier is carried in a first field and/or a second field in a public information field of a sensing detection trigger frame, or is carried in a user information field of the sensing detection trigger frame.

For example, measurementinstance ID may be carried in the trigger related common information field of the sense probe trigger frame (as shown in fig. 9, e.g., B5-B7 of fig. 9), or may be carried in the common information field of the sense probe trigger frame (as shown in fig. 7, e.g., B54-B62 of fig. 7), or may be carried in the user information field of the sense probe trigger frame (as shown in fig. 11, e.g., B12-B20 of fig. 11). And the length of the triggering related public information field in the second mode is less than or equal to 8 bits, that is, the length of the sensing detection trigger frame is the same as the length of the ranging detection trigger frame, and the length of the triggering related public information field is not expanded, so that the problem that the ranging equipment cannot normally identify the sensing detection trigger frame due to the expansion of the length of the sensing detection trigger frame is avoided.

Alternatively, when the length of the measurement entity identifier is longer, the measurement entity identifier may be carried in both the first field and the second field. For example, assume that measurementinstance ID is 5 bits in length, 3 bits of which are carried in the trigger related common information field of the sense probe trigger frame (e.g., B5-B7 of fig. 9), and another 2 bits are carried in the first field of the common information field of the sense probe trigger frame (e.g., B54 and B55 of B54-B62 of fig. 7).

Mode three: the measurement setup identity and the measurement entity identity are both carried in a second field in the common information field of the perceived probe trigger frame.

For example, if the three trigger related common information fields are extended from less than or equal to 8 bits to greater than or equal to 8 bits, then measurementsetup ID and measurementinstance ID may both be carried in the trigger related common information fields of the sense probe trigger frame.

S103, the first device sends a second NDP to the second device.

Wherein the perceived measurement of the second device is determined based on the second NDP. For example, the second NDP is a perceived NDP that the first device (e.g., the perceived AP) transmits to the second device (e.g., the perceived non-AP STA), and the non-AP STA may measure the second NDP to obtain CSI of the channel from the AP to the non-AP STA, that is, determine a perceived measurement result of the second device based on the second NDP.

Optionally, before the first device sends the second NDP to the second device, the method further includes the following steps:

the first device sends an empty data packet announcement NDPA to the second device, the NDPA being used to inform the second device that the first device is to send a second NDP.

For example, during the sensing measurement illustrated in fig. 2a, an AP (first device) may transmit NDPA to a sensing non-AP STA (second device). Correspondingly, the second device receives an NDPA, which is a perceived NDPA for the perceiving device. The perceptual NDPA is used to inform the second device that the first device is to send a perceptual NDP for making the perceptual measurement.

the association identifier is associated with the sensing equipment;

a measurement setup identifier for the perceptual measurement;

measurement entity identification for perceptual measurement.

For example, the NDPA in this embodiment is a perceived NDPA, and the manner in which the NDPA carries information may include, but is not limited to, the following ways:

mode one: the second indication information is carried in a user information field of the corresponding sensing device in the NDPA, or in a special user information field in the NDPA, or in a sounding dialogue mark field in the NDPA. The second indication information is a new indication information added in the embodiment of the present application, and the specific description may refer to the description of the second indication information in the following point 4.

Mode two: the measurement establishment identifier is carried in a user information field of the corresponding sensing device in the NDPA, or in a special user information field in the NDPA, or in a detection dialogue mark field in the NDPA. For example, the NDPA may use a frame format of HE NDPA as shown in fig. 12a, and a certain user information field (for example, user information field 1) is set as a user information field of the corresponding sensing device, and measurementsetup ID may be carried in the user information field 1. For another example, the NDPA may use a frame format of HE NDPA as shown in fig. 12a, and a special user information field is newly added between a sounding dialog token field (sounding dialog) and a user information field, and measurementsetup ID may be carried in the newly added special user information field. For another example, the NDPA may use the frame format of HE NDPA as shown in fig. 12a, and measurementsetup ID may be carried in the sounding dialogtoken field. For the sensing device, the sensing device will recognize that measurementsetup ID is carried in the sounddialogtoken field.

Mode three: the measurement entity identifier is carried in a user information field of a corresponding sensing device in the NDPA, or carried in a special user information field in the NDPA, or carried in a detection dialogue mark field in the NDPA. An exemplary description of measurementinstance ID may be referred to as an exemplary description of measurementsetup ID in the second embodiment, and will not be described herein.

Mode four: the associated identifier is carried in a user information field of the corresponding sensing device in the NDPA or in a special user information field in the NDPA. Wherein, the user information field or the special user information field also comprises an Association Identifier (AID), and the association identifier is associated with the sensing device. For example, an AID in a user information field is associated with a perceived device to which the user information field corresponds (e.g., the AID is the ID of the corresponding perceived device). For another example, the AID in the special user information field may be associated with a sensing device, where the AID is not the ID of a particular sensing device, but may be a special value that may be read by the sensing device.

It can be seen that in the measurement probing phase (measurement sounding phase) in the sensing measurement scenario and the mixed measurement scenario described in the above embodiments, the first device (AP) may perform sensing measurement and/or ranging measurement with the sensing device and the ranging device at the same time, so that the efficiency of the AP may be improved. In addition, the sensing device can finish sensing measurement or ranging measurement or both sensing measurement and ranging measurement, a ranging function is added for the sensing device, and the functions of the sensing device are enriched. And the ranging equipment can transparently participate in the perceived flow so as to finish ranging without the need of an AP to additionally initiate the ranging flow.

2. Polling phase in a perceptual measurement scenario and a hybrid measurement scenario

According to the description in the embodiment of fig. 2a, before the first device sends the sensing probe trigger frame, the first device may further send a sensing poll trigger frame to the second device, so that the second device feeds back the first response frame for the sensing poll trigger frame, thereby confirming whether the second device can participate in the sensing measurement procedure. For example, before S101 shown in fig. 13, the following steps may be further included:

s11, the first device sends a sensing polling trigger frame to the second device;

s12, the first device receives a first response frame for the sensing poll trigger frame from the second device, where the first response frame is used to confirm that the second device participates in the sensing measurement.

That is, after the AP sends the sensing poll trigger frame to the sensing device, if the sensing device confirms participation in the sensing measurement, a first response frame (for example, CTS to self frame) may be sent to the AP to inform the AP that the sensing device confirms participation in the sensing measurement.

In a possible implementation manner, the sensing polling trigger frame carries first indication information, the first indication information is carried in a second field in a public information field of the sensing polling trigger frame, and the value of the first indication information in the sensing polling trigger frame is a second value. It can be understood that the first indication information is indication information indicating a sub-category (sensinggtriggersbype) of the perceived trigger frame, and is carried in a trigger related public information field. For example, the value of the first indication information in the perceived polling trigger frame is 1 (i.e., the second value is 1), and when the second device receives the trigger frame, the trigger frame may be identified as the perceived polling trigger frame.

In a possible implementation, the perceived poll trigger frame carries a measurement setup identity (measurementsetup ID) for perceived measurements and a measurement entity identity (measurementinstance ID) for perceived measurements. It will be appreciated that the perceived poll trigger frame may not take into account compatible ranging devices since no ranging devices are present. In the sense polling trigger frame, the manner in which the above information is carried in the sense polling trigger frame may include, but is not limited to, the following manners:

mode one: the measurement setup identity is carried in a first field and/or a second field in a common information field of the perceived poll trigger frame. For example, measurementsetup ID may be carried in the token field of the trigger related public information field of the sense poll trigger frame (as shown in fig. 9, e.g., B5-B7 of fig. 9), or may be carried in the public information field of the sense poll trigger frame (as shown in fig. 7, e.g., B54-B62 of fig. 7).

Alternatively, when the length of the measurement setup identifier is longer, the measurement setup identifier may be carried in both the first field and the second field. Specific examples may refer to corresponding descriptions in the foregoing embodiments, and are not repeated here.

Mode two: the measurement entity identifies a first field or a second field carried in a common information field of the perceived poll trigger frame. For example, measurementinstance ID may be carried in the token field of the trigger related public information field of the sense poll trigger frame (as shown in fig. 9, e.g., B5-B7 of fig. 9), or may be carried in the public information field of the sense poll trigger frame (as shown in fig. 7, e.g., B54-B62 of fig. 7).

Alternatively, when the length of the measurement entity identifier is longer, the measurement entity identifier may be carried in both the first field and the second field. Specific examples may refer to corresponding descriptions in the foregoing embodiments, and are not repeated here.

Mode three: the measurement establishment identifier and the measurement entity identifier are both carried in a second field in a common information field of the cognitive poll trigger frame.

For example, if the three pairs of trigger related common information fields are extended from less than or equal to 8 bits to greater than or equal to 8 bits, then measurementsetup ID and measurementinstance ID may both be carried in trigger related common information fields of the sense poll trigger frame.

3. Feedback phase in perceptual measurement scenarios and hybrid measurement scenarios

According to the description in the embodiment of fig. 2a, after the first device sends the sensing probe trigger frame, the first device may also send a sensing report trigger frame to the second device, triggering the second device to feed back the sensing measurement result of the second device to the first device.

For example, after S103 shown in fig. 13, the following steps may be further included:

s21, the first device sends a perception report trigger frame to the second device;

S22, the first device receives a second response frame for the sensing report trigger frame from the second device, the second response frame including a sensing measurement result of the second device.

In this embodiment, the second device is a sensing device (the ranging device does not accept the report trigger frame), so the question of whether the sensing report trigger frame is compatible with the ranging device is not considered.

In a possible implementation manner, the sensing report trigger frame carries first indication information, the first indication information is carried in a second field in a public information field of the sensing report trigger frame, and the value of the first indication information in the sensing report trigger frame is a third value. It can be understood that the first indication information is indication information indicating a sub-category (sensinggtriggersbype) of the perceived trigger frame, and is carried in a trigger related public information field. For example, the first indication information in the sensing report trigger frame has a value of 3 (i.e., the third value is 3), and when the second device receives the trigger frame, the trigger frame may be identified as the sensing report trigger frame.

Wherein the sensing report trigger frame carries a measurement setup identity (measurementsetup ID) for sensing measurements and a measurement entity identity (measurementinstance ID) for sensing measurements. In the sensing report trigger frame, the manner of carrying the information in the sensing report trigger frame may include, but is not limited to, the following manners:

Mode one: the measurement setup identifier is carried in a first field or a second field in a common information field of the sensing report trigger frame, or in a user information field of the sensing report trigger frame.

For example, measurement setup ID may be carried in the trigger related common information field of the sense report trigger frame (as shown in fig. 9, e.g., B5-B7 of fig. 9), may be carried in the first field of the common information field of the sense probe trigger frame (as shown in fig. 7, e.g., B54-B62 of fig. 7), and may be carried in the user information field of the sense probe trigger frame (as shown in fig. 11, e.g., B12-B20 of fig. 11).

Mode two: the measurement entity identifier is carried in a first field or a second field in a public information field of a sensing report trigger frame, or is carried in a user information field of the sensing report trigger frame.

For example, measurementinstance ID may be carried in the trigger related common information field of the sense probe trigger frame (as shown in fig. 9, e.g., B5-B7 of fig. 9), the common information field of the sense probe trigger frame (as shown in fig. 7, e.g., B54-B62 of fig. 7), and the user information field of the sense probe trigger frame (as shown in fig. 11, e.g., B12-B20 of fig. 11).

Mode three: the measurement setup identity and the measurement entity identity are both carried in a second field in the common information field of the awareness report trigger frame.

For example, if the three trigger related common information fields are extended from less than or equal to 8 bits to greater than or equal to 8 bits, then measurementsetup ID and measurementinstance ID may both be carried in the trigger related common information fields of the sensing report trigger frame.

The second response frame may be, for example, the sensing report frame described above, or an LMR frame, and the specific implementation may refer to the corresponding description in section 5 of the first portion, which is not described herein.

4. The second indication information related to the polling stage, the measuring stage and the feedback stage

The second indication information is indication information aiming at the sensing equipment in the embodiment of the application. The second indication information is used to instruct the sensing device to perform a sensing measurement.

The sensing trigger frame carries the second indication information, and the sensing trigger frame is the sensing detection trigger frame, or the sensing polling trigger frame, or the sensing report trigger frame described in the previous embodiment. That is, the sensing probe trigger frame, or the sensing poll trigger frame, or the sensing report trigger frame described in the foregoing embodiments may all carry the second indication information. Specifically, the second indication information is carried in a user information field of the perception trigger frame, or in a first field or a second field of the common information field.

For example, the second indication information may be indicated with 1bit, and when the 1bit is set to 0, instruct the sensing device to perform sensing measurement; when the 1bit is set to 1, the meaning thereof is not limited in this embodiment (for example, the sensing device may be instructed to perform ranging measurement in the following embodiments). When the second indication information is indicated with 1bit, the 1bit may be carried in B63 in a common information field of the sensing trigger frame (including the sensing poll trigger frame, the sensing probe trigger frame, and the sensing report trigger frame). Alternatively, the 1bit may be carried in B4 in the trigger related public information field of the sense trigger frame. Alternatively, the 1bit may be carried in B39 in the user information field of the sense trigger frame.

3. The embodiment of the application provides a non-trigger-based measurement method (comprising a sensing measurement scene of sensing equipment or a sensing measurement and ranging measurement scene of sensing equipment, and a mixed measurement scene of sensing equipment and ranging equipment is not included)

Fig. 14 is a flow chart of a non-trigger-based measurement method according to an embodiment of the present application. The method is implemented by interaction between a first device and a second device, and comprises the following steps:

s201, the second device sends a perceived empty packet advertisement NDPA to the first device.

The sensing NDPA carries third indication information, and the third indication information is used for indicating the first device to execute sensing measurement. It will be appreciated that this third indication information has a similar function as the second indication information described in the previous embodiments, i.e. the sensing initiation end indicates to the sensing response end that the sensing measurement is specifically performed. The sensing NDPA carries a measurement establishment identifier for sensing measurement and a measurement entity identifier for sensing measurement.

Specifically, the manner in which information is carried in NDPA is perceived may include, but is not limited to, the following:

mode one: the third indication information is carried in a user information field or a special user information field of the corresponding sensing device in the sensing NDPA or a detection dialogue sign field in the sensing NDPA.

Mode two: the measurement setup identifier is carried in a user information field or a special user information field of a corresponding sensing device in the sensing NDPA or in a probing dialog token field in the sensing NDPA.

Mode three: the measurement entity identification is carried in a user information field or a special user information field of a corresponding sensing device in the sensing NDPA or a detection dialogue sign field in the sensing NDPA.

The above three implementations may refer to the description of the user information field or the special user information field of the corresponding sensing device in the NDPA in the foregoing embodiments, which is not repeated herein. It should be noted that, the sensing NDPA in the foregoing embodiment is based on the triggered sensing NDPA, and the sensing NDPA in the present embodiment is based on the non-triggered sensing NDPA, so the sensing NDPA in the present embodiment does not carry the token value.

S202, based on the perceived NDPA, the second device sends a null data packet I2R-NDP to the first device that initiates the response.

S203, the second device receives a response from the first device to the initiated null data packet R2I-NDP.

It should be noted that the non-trigger mechanism in this embodiment does not require a polling stage, the second device directly sends the NDPA to the first device, and informs the first device that the second device will send an initiate-to-response (I2 RNDP) null data packet, and the AP will feedback a response to the initiate null data packet (R2I NDP) after receiving the NDP. Additionally, the I2rndp may be used for sensing measurements, or the R2 rndp may be used for sensing measurements. And, the measurement reporting phase is an optional phase. For example, fig. 15a shows the measurement reporting phase, representing that in this example, I2R NDP is the NDP for the sensing measurement. Because the AP sends the measurement result to the non-AP STA, the AP may send the sensing feedback directly to the non-AP STA without the need for a trigger frame.

Optionally, if the non-AP STA informs the AP that it wants to perform ranging while performing sensing during the early parameter negotiation, the AP may send the ranging result to the non-AP STA simultaneously or separately during the result feedback stage. The perceived NDPA in this case may contain information about the perceived device to use for ranging. Alternatively, the non-AP STA may acquire the ranging measurement result by the sensing device described in section 5 above in a manner that requires the ranging measurement result to be fed back at the AP in the sensing measurement reporting stage, for example, in a format similar to that of fig. 5b, tables 4 to 8, or LMR frames, and the feedback ranging measurement result is not limited by the present application.

Optionally, if the non-AP STA informs the AP that it wants to perform the ranging measurement while performing the sensing measurement during the early parameter negotiation, the non-AP STA may perform the parameter negotiation through the step of negotiating with the AP during the sensing measurement setup phase by using the sensing device described in the section 5 of the first part in the sensing measurement setup phase, which is not described herein.

4. Another measurement method based on triggering (ranging measurement scene including sensing device and mixed measurement scene including sensing device and ranging device) provided by the embodiment of the application

The steps of the measurement method in this embodiment may refer to steps S101 to S103 of the trigger-based measurement method described in the embodiment of fig. 13, and descriptions about a sensing poll trigger frame, a sensing probe trigger frame, a sensing report trigger frame, and the like. The difference is that the sensing trigger frame (including, for example, the sensing poll trigger frame, the sensing probe trigger frame, the sensing report trigger frame, etc.) in the measurement method in this embodiment may be identified by the ranging device as the ranging trigger frame in the hybrid measurement scenario including the sensing device and the ranging device, so that the ranging device may perform ranging measurement based on the sensing trigger frame, thereby implementing hybrid measurement based on the sensing trigger frame. In addition, the sensing trigger frame in the measurement method in the embodiment can also be used for the sensing device to perform ranging measurement, so that the functions of the sensing device are enriched.

In this embodiment, the first device refers to a sense AP, and the second device refers to a sense non-AP STA or a ranging non-AP STA. That is, the second device may be a sensing device or a ranging device. In the embodiment of the present application, when the second device is a sensing device, the sensing device may perform ranging measurement in addition to sensing measurement, or may perform sensing measurement and ranging measurement.

Differences between the present embodiment and the embodiment of fig. 13 are described below.

1. The sensing probe trigger frame is used for triggering the second device to send the first null data packet NDP. The first NDP is used to perform ranging measurements, or to perform sensing measurements and ranging measurements.

For example, in the mixed sensing and ranging measurement procedure shown in fig. 4a, the AP may transmit a sensing probe trigger frame to a sensing non-AP STA (i.e., sensing device) and a ranging non-AP STA (i.e., ranging device). Correspondingly, the sensing device and the ranging device receive the sensing detection trigger frame and respectively execute corresponding measurement flows.

Case one: when the second device is a sensing device and the second device is configured to perform ranging measurements, the sensing probe trigger frame is configured to trigger the second device to send a first NDP to the first device. That is, the first NDP is a perceived NDP. However, the perceived NDP may carry information for ranging measurements, thereby facilitating the perceived device to perform ranging measurements based on the first NDP.

And a second case: in a hybrid measurement scenario, the second device may be considered to include a sensing device and a ranging device, the sensing probe trigger frame for triggering the sensing device to send a sensing NDP to the first device, and for triggering the ranging device to send a ranging NDP to the first device. That is, for the ranging device, the ranging device actually considers the perceived sounding trigger frame as a ranging sounding trigger frame and then performs ranging measurements.

The procedure of performing ranging measurement described in the first case and the second case may refer to the procedure of ranging measurement described in fig. 3a, and will not be described herein.

2. The sensing probe trigger frame carries a measurement setup identity (measurementsetup ID) for sensing measurements and a measurement entity identity (measurementinstance ID) for sensing measurements. Since the second device in this embodiment may be a ranging device, that is, a mixing procedure as shown in fig. 4a is performed between the first device and the second device. Since there is a ranging device, sensing a sounding trigger frame considers compatible ranging devices. The length of measurementsetup ID and measurementinstance ID (i.e., occupied bits) is not limited in this embodiment of the present application, and for example, it is assumed that measurementsetup ID has a length of 3bit,measurementinstance ID and 5 bits.

The measurement establishment identifier and the measurement entity identifier are carried in a user information field or a public information field of the sensing detection trigger frame. For example, measurementsetup ID and measurementinstance ID may be carried in a common information field of a sense probe trigger frame (as shown in fig. 7, e.g., B54-B62 of fig. 7) and may also be carried in a user information field of a sense probe trigger frame (as shown in fig. 11, e.g., B12-B20 of fig. 11). It should be noted that, in view of the compatible ranging device, the ranging device may recognize that the information for the sensing measurement cannot be carried in the trigger related common information field (e.g., token field) of the sensing probe trigger frame.

3. The first device sends an empty data packet announcement NDPA to the second device, the NDPA being used to inform the second device that the first device is to send a second NDP. Wherein the perceived measurement or ranging measurement of the second device is determined in accordance with the second NDP.

The method comprises the following steps:

case one: when the second device is a sensing device, the second device needs to perform ranging measurements, or when the second device is a ranging device, the second device may identify the NDPA as the NDPA for the ranging measurements. When the sensing device receives the second NDP, the sensing device may measure the second NDP to determine a ranging measurement result of the second device.

And a second case: when the second device is a sensing device, the NDPA is configured to inform the second device that the second device needs to perform sensing measurement, and the first device will send a sensing NDP for performing sensing measurement. When the sensing device receives the second NDP, the second NDP may be measured, so as to obtain CSI of the channel from the AP to the non-AP STA, that is, determine a sensing measurement result of the second device based on the second NDP.

the association identifier is associated with the sensing equipment;

a measurement setup identifier for the perceptual measurement;

a measurement entity identification for perceptual measurement;

token value for ranging measurements.

It can be seen that, compared to the NDPA in the embodiment of fig. 13, the NDPA of the embodiment may also carry information (e.g., token value) related to the ranging measurement.

In a hybrid scenario including a sensing device and a ranging device, the NDPA is designed to be compatible with the ranging device. For example, the manner in which the NDPA carries information may include, but is not limited to, the following:

Mode two: the measurement establishment identifier is carried in a user information field of the corresponding sensing device in the NDPA, or in a special user information field in the NDPA, or in a detection dialogue mark field in the NDPA. For example, the NDPA may use a frame format of HE NDPA as shown in fig. 12a, and a certain user information field (for example, user information field 1) is set as a user information field of the corresponding sensing device, and measurementsetup ID may be carried in the user information field 1. For another example, the NDPA may use a frame format of HE NDPA as shown in fig. 12a, and a special user information field is newly added between a sounding dialog token field (sounding dialog) and a user information field, and measurementsetup ID may be carried in the newly added special user information field. For another example, the NDPA may use the frame format of HE NDPA as shown in fig. 12a, and measurementsetup ID may be carried in the sounding dialogtoken field. For the sensing device, the sensing device will recognize that the sounddialogtoken field carries measurementsetup ID, while the ranging device will recognize that the sounddialogtoken field carries its own sounddialogtoken.

Mode five: the token value for ranging measurement is carried in the user information field of the corresponding ranging device in the NDPA, for example, the NDPA may use the frame format of HE NDPA as shown in fig. 12a, and a certain user information field (for example, the user information field 2) is set to the user information field of the corresponding ranging device, so that the token value may be carried in the user information field 2.

The sensing measurement or ranging measurement of the second device is determined according to a second NDP, comprising:

For example, the second NDP is a perceived NDP that the first device (e.g., the perceived AP) transmits to the second device (e.g., the perceived non-AP STA), and the non-AP STA may measure the second NDP to obtain CSI of the channel from the AP to the non-AP STA, that is, determine a perceived measurement result of the second device based on the second NDP.

For another example, the second NDP is a perceived NDP that the first device (for example, perceived AP) sends to the second device (for example, ranging non-AP STA), but in this embodiment, it is assumed that the perceived NDP adopts the same format as the ranging NDP, and may also carry information for indicating ranging, and the ranging non-AP STA may measure the second NDP, so as to obtain CSI of a channel from the AP to the non-AP STA, that is, determine a ranging measurement result of the second device based on the second NDP.

4. Since the second device may be a sensing device or a ranging device, the first device transmits a sensing poll trigger frame to the second device to cause the second device to feedback a first response frame for the sensing poll trigger frame, thereby confirming whether the second device can participate in the sensing measurement procedure or in the ranging measurement procedure. The polling phase in this embodiment can be described by the following several examples.

Example one: before the first device sends the sensing probe trigger frame to the second device, the method may further include the steps of:

s31, the first device sends a sensing polling trigger frame to the second device;

s32, the first device receives a first response frame for the perceived poll trigger frame from the second device, where the first response frame is used to confirm that the second device participates in the ranging measurement.

That is, the second device in this example is a sensing device or a ranging device. When the second device is a sensing device, the sensing device is also used for ranging measurements.

Example two: before the first device sends the sensing probe trigger frame to the second device, the method may further include the steps of:

s41, the first device sends a sensing polling trigger frame to the second device;

s42, the first device receives a first response frame for the sensing poll trigger frame from the second device, where the first response frame is used to confirm that the second device participates in the sensing measurement and the ranging measurement.

That is, the second device in this example includes a sensing device and a ranging device (hybrid measurement scenario). The first response frame fed back by the sensing device to the first device is used for confirming that the sensing device participates in sensing measurement and ranging measurement, and the first response frame fed back by the ranging device to the first device is used for confirming that the ranging device participates in ranging measurement.

In a possible implementation, where a hybrid measurement procedure as shown in fig. 4a is performed between the first device and the second device, the perceived polling trigger frame is considered compatible with the ranging device due to the presence of the ranging device. Wherein the perceived poll trigger frame carries a measurement setup identity (measurementsetup ID) for perceived measurements, a measurement entity identity (measurementinstance ID) for perceived measurements, and a token value for ranging. The length of measurementsetup ID and measurementinstance ID (i.e., occupied bits) is not limited in this embodiment of the present application, and for example, it is assumed that measurementsetup ID has a length of 3bit,measurementinstance ID and 5 bits.

The measurement establishment identifier and the measurement entity identifier are carried in a common information field of the sensing polling trigger frame. For example, measurementsetup ID and measurementinstance ID may be carried in a common information field of a perceived poll trigger frame (as shown in fig. 7, e.g., B54-B62 of fig. 7). It should be noted that, in view of the compatible ranging device, the information for the perceived measurement cannot be carried in the trigger related common information field (e.g., token field) of the perceived poll trigger frame that the ranging device can recognize. The trigger related public information field (e.g. token field) carries a token value for ranging, that is, the carrying manner is the same as that of the existing ranging polling trigger frame, which is beneficial for the ranging device to acquire the information for ranging.

5. In this embodiment, the sensing trigger frame (e.g., including a sensing poll trigger frame, a sensing probe trigger frame, a sensing report trigger frame, etc.) also includes the second indication information described in the previous embodiment. However, the second indication information in the present embodiment is used not only to instruct the sensing device to perform sensing measurement but also to instruct the sensing device to perform ranging measurement or to perform sensing measurement and ranging measurement. Specifically, the second indication information is carried in a user information field of the perception trigger frame, or in a first field or a second field of the common information field.

For example, the second indication information may be indicated with 1bit, and when the 1bit is set to 0, instruct the sensing device to perform sensing measurement; when the 1bit is set to 1, the sensing device is instructed to perform ranging measurements. When the second indication information is indicated with 1bit, the 1bit may be carried in B63 in a common information field of the sensing trigger frame (including the sensing poll trigger frame, the sensing probe trigger frame, and the sensing report trigger frame). Alternatively, the 1bit may be carried in B4 in the trigger related public information field of the sense trigger frame. Alternatively, the 1bit may be carried in B39 in the user information field of the sense trigger frame.

For another example, the second indication information may be indicated by using 2 bits, and when the 2 bits are set to 00, instruct the sensing device to perform sensing measurement; when the 2bit is set to 01, indicating the sensing device to execute ranging measurement; when the 2bit is set to 10, the sensing device is instructed to perform sensing measurement and ranging measurement. When the second indication information is indicated with 2 bits, the 2 bits may be carried in B54-62 in the common information field of the sense trigger frame (including the sense poll trigger frame, the sense probe trigger frame, and the sense report trigger frame), or B12-B20 in the user information field of the sense probe trigger frame.

5. Another measurement method based on triggering provided by the embodiment of the application (for example, the measurement method can be applied to a scene which needs to be subjected to sensing measurement and ranging measurement by a departure sensing device, and the scene can not comprise the ranging device)

1. Perception measurement establishment phase (sensing measurement setup phase)

A. When the first device requires ranging measurements, the perceptual measurement setup phase is implemented by the interaction between the first device and the second device, as shown in fig. 15b, comprising the steps of:

s301, a first device generates a perception measurement establishment request frame, wherein the perception measurement establishment request frame carries first ranging indication information for requesting a second device to perform ranging measurement in a perception measurement process;

s302, the first device sends a perception measurement establishment request frame to the second device.

Optionally, the method further comprises the following steps:

the second device sends a perception measurement setup response frame to the first device.

B. When the second device requires ranging measurements, the perceptual measurement setup phase is implemented by the interaction between the second device and the first device, as shown in fig. 15c, comprising the steps of:

s401, responding to a sensing measurement establishment request frame, and generating a sensing measurement establishment response frame by the second device, wherein the sensing measurement establishment response frame carries second ranging indication information for requesting the first device to perform ranging measurement in a sensing measurement process;

S402, the second device sends a perception measurement setup response frame to the first device.

Optionally, before the second device generates the sensing measurement setup response frame, the method further includes the following steps:

the second device receives a perception measurement setup request frame.

Optionally, the method further comprises the following steps:

the first device sends a perception measurement setup confirmation frame to the second device.

The description of the perceptual measurement setup acknowledgement frame may refer to the corresponding description in section 5 of the first section, and will not be repeated here.

In this embodiment, the first device refers to a aware AP and the second device refers to a aware non-AP STA. That is, the second device is a sensing device. The specific implementation manner of the above steps may refer to the description corresponding to the measurement flow of the mixed sensing and ranging of the first section 5, for example, the frame format of the sensing measurement setup request frame, the frame format of the sensing measurement setup response frame, etc., which are not described herein.

2. Perception measuring entity stage (sensing measurement instance phase)

The flow of the trigger-based measurement method performed in the sensing measurement entity stage is similar to that shown in fig. 13, and will not be described herein. The sensing poll trigger frame, the sensing probe trigger frame, the NDPA frame and the NDP sent by the AP in the measurement process are designed based on the frame format used for ranging measurement in the existing 802.11az protocol (the 802.11az protocol is based on the 802.11ax protocol), and the specific embodiment may refer to the corresponding description in the second part of the foregoing, which is not repeated here. And, the first indication information, the second indication information, how to carry the measurement setup identifier (measurement setup ID) and the measurement entity identifier (measurement instance ID) for sensing measurement described in the second part and the fourth part can be multiplexed to this embodiment, which is not described herein.

3. Perception measurement report phase (sensing measurement report phase)

The sensing device performs sensing measurement and ranging measurement, and then needs to consider feedback ranging measurement results in a result feedback stage. For a specific manner of feedback, reference may be made to the description in section 5 of the first section, for example, the AP may require that the sensing device feedback the ranging measurement result in the sensing measurement reporting stage, or the sensing device may require that the sensing device feedback the ranging measurement result in the sensing measurement reporting stage, which is not described herein.

It should be noted that the embodiments described in the first to fifth sections of the present application may be cross-referenced, for example, the flows of the trigger-based measurement methods described in the fourth and fifth sections may refer to the flows shown in fig. 13 and the related descriptions in the second section; as another example, the steps in the sensing measurement setup phase and the sensing measurement reporting phase described in the first and fifth parts may also be cited in the second and fourth parts, and the present application is not limited thereto.

To implement the functions of the method provided by the present application, the apparatus or device provided by the present application may include a hardware structure and/or a software module, where the functions are implemented in the form of a hardware structure, a software module, or a hardware structure plus a software module. Some of the functions described above are performed in a hardware configuration, a software module, or a combination of hardware and software modules, depending on the specific application of the solution and design constraints. The division of the modules in the present application is illustrative, and is merely a logic function division, and there may be another division manner in actual implementation. In addition, each functional module in the embodiments of the present application may be integrated in one processor, or may exist alone physically, or two or more modules may be integrated in one module. The integrated modules may be implemented in hardware or in software functional modules.

Fig. 16 is a schematic diagram of a communication device 1600 according to an embodiment of the present application for implementing the measurement method in the above-mentioned method embodiment. The device may also be a system-on-chip. The device 1600 includes a communication interface 1601, which may be, for example, a transceiver, interface, bus, circuit, or device capable of performing a transceiving function. Wherein the communication interface 1601 is configured to communicate with other devices via a transmission medium, so that an apparatus used in the device 1600 may communicate with the other devices. The device 1600 also includes at least one processor 1602. The communication interface 1601 is combined with the processor 1602 for implementing the methods in the method embodiments described above.

In an alternative embodiment:

a communication interface 1601, configured to send a sensing probe trigger frame to a second device, where the sensing probe trigger frame is configured to trigger the second device to send a first null data packet NDP; the first NDP is used for performing a perception measurement;

the communication interface 1601 is further configured to receive a first NDP;

the communication interface 1601 is further configured to send a second NDP to the second device, wherein the perception measurement of the second device is determined based on the second NDP.

It can be seen that a sensing probe trigger frame is sent by a first device to a second device, the sensing probe trigger frame being identifiable by the second device (e.g., a sensing device), and the function of the sensing probe trigger frame includes triggering the second device to send sensing measurement related information to the first device, such that the sensing device may have a function based on the triggered sensing measurement.

The apparatus 1600 in the embodiment of the present application has any function of the first apparatus in the first aspect of the foregoing summary of the present application, and any function of the first Apparatus (AP) in the specific embodiment, and for all technical details thereof, reference may be made to the content corresponding to the first aspect of the foregoing summary of the present application and the specific embodiment, which is not repeated herein.

In another alternative embodiment:

a communication interface 1601, configured to receive a sensing probe trigger frame, where the sensing probe trigger frame is configured to trigger a second device to send a first null data packet NDP, and the first NDP is configured to perform sensing measurement;

the communication interface 1601 is further configured to send a first NDP;

the communication interface 1601 is further configured to receive a second NDP sent by the first device, where a perception measurement of the second device is determined based on the second NDP.

It can be seen that the perceived probe trigger frame can be recognized by a second device (e.g., a perceiving device) and that the functionality of the perceived probe trigger frame includes triggering the second device to send information related to the perceived measurement to the first device, such that the perceiving device can have the functionality of a perceived measurement based on the trigger.

The apparatus 1600 according to the embodiment of the present application has any function of the second apparatus in the second aspect of the foregoing disclosure, and any function of the second apparatus (non-AP STA) in the specific embodiment, and for all technical details thereof, reference may be made to the content corresponding to the second aspect of the foregoing disclosure and the specific embodiment, which is not repeated herein.

In another alternative embodiment:

a communication interface 1601, configured to send a perceived empty packet advertisement NDPA to a first device;

the communication interface 1601 is further configured to send a null data packet I2R-NDP initiating a response to the first device based on the perceived NDPA;

the communication interface 1601 is further configured to receive a response from the first device to the initiated null data packet R2I-NDP.

It can be seen that the AP may also participate in sensing as a sensing response end, where the sensing initiator is a non-AP STA. In this case, the sensing initiator can only sense with one sensing responder at the same time, i.e. the sensing flow described in this aspect is a sensing flow based on a non-trigger mechanism, i.e. a one-to-one process. The sensing device may implement sensing measurements based on I2R-NDP or R2I-NDP.

The apparatus 1600 in the embodiment of the present application has any function of the second apparatus in the third aspect of the foregoing disclosure, and any function of the second apparatus (non-AP STA) in the specific embodiment, and for all technical details thereof, reference may be made to the content corresponding to the third aspect of the foregoing disclosure and the specific embodiment, which is not repeated herein.

Device 1600 may also include at least one memory 1603 for storing program instructions and/or data. In one embodiment, memory 1603 is coupled to processor 1602. The coupling in the present application is an indirect coupling or communication connection between devices, units or modules, which may be in electrical, mechanical or other form for the exchange of information between the devices, units or modules. The processor 1602 may operate in conjunction with the memory 1603. The processor 1602 may execute program instructions stored in the memory 1603. The at least one memory and the processor are integrated.

The specific connection medium between the communication interface 1601, the processor 1602, and the memory 1603 is not limited to the present application. In fig. 16, the memory 1603, the processor 1602 and the communication interface 1601 are connected by a bus 1604, which is shown by a thick line in fig. 16, and the connection between other components is merely illustrative and not restrictive. The buses may be classified as address buses, data buses, control buses, etc. For ease of illustration, only one thick line is shown in fig. 16, but not only one bus or one type of bus.

In the present application, the processor may be a general purpose processor, a digital signal processor, an application specific integrated circuit, a field programmable gate array or other programmable logic device, a discrete gate or transistor logic device, or a discrete hardware component, and may implement or perform the methods, steps, and logic blocks disclosed in the present application. The general purpose processor may be a microprocessor or any conventional processor or the like. The steps of a method disclosed in connection with the present application may be embodied directly in a hardware processor for execution, or in a combination of hardware and software modules in a processor for execution.

In the present application, the memory may be a nonvolatile memory such as a hard disk (HDD) or a Solid State Drive (SSD), or may be a volatile memory (RAM) such as a random-access memory (RAM). The memory is any other medium that can be used to carry or store desired program code in the form of instructions or data structures and that can be accessed by a computer, but is not limited to such. The memory of the present application may also be circuitry or any other device capable of performing the function of storing program instructions and/or data.

Fig. 17 is a schematic diagram of a communication device according to an embodiment of the present application. The communication apparatus 1700 may include a communication unit 1701 and a processing unit 1702. The communication unit 1701 may include a transmission unit for implementing a transmission function and a reception unit for implementing a reception function, and the communication unit 1701 may implement the transmission function and/or the reception function. The communication unit may also be described as a transceiver unit. The processing unit 1702 is configured to process data transmitted and received by the communication unit 1701.

In an alternative embodiment:

A communication unit 1701, configured to send a sensing probe trigger frame to the second device, where the sensing probe trigger frame is configured to trigger the second device to send a first null data packet NDP; the first NDP is used for performing a perception measurement;

the communication unit 1701 is further configured to receive a first NDP;

the communication unit 1701 is further configured to send a second NDP to the second device, wherein the perceived measurement of the second device is determined based on the second NDP.

The communication apparatus 1700 according to the embodiment of the present application has any function of the first device in the first aspect of the foregoing summary of the application, and any function of the first device (AP) in the specific embodiment, and for all technical details thereof, reference may be made to the content corresponding to the first aspect of the foregoing summary of the application and the specific embodiment, which is not repeated herein.

In another alternative embodiment:

A communication unit 1701, configured to receive a sensing probe trigger frame, where the sensing probe trigger frame is configured to trigger the second device to send a first null data packet NDP, and the first NDP is configured to perform sensing measurement;

the communication unit 1701 is further configured to send a first NDP;

the communication unit 1701 is further configured to receive a second NDP sent by the first device, where the sensing measurement result of the second device is determined based on the second NDP.

The communication apparatus 1700 according to the embodiment of the present application has any function of the second device in the second aspect of the foregoing summary of the application, and any function of the second device (non-AP STA) in the specific embodiment, and for all technical details thereof, reference may be made to the content corresponding to the second aspect of the foregoing summary of the application and the specific embodiment, which is not repeated here.

In another alternative embodiment:

a communication unit 1701 configured to send a perceived empty packet advertisement NDPA to the first device;

The communication unit 1701 is further configured to send a null data packet I2R-NDP initiating a response to the first device based on the perceived NDPA;

the communication unit 1701 is further configured to receive a response from the first device to the initiated null data packet R2I-NDP.

The communication apparatus 1700 according to the embodiment of the present application has any function of the second device in the third aspect of the foregoing disclosure, and any function of the second device (non-AP STA) in the specific embodiment, and for all technical details thereof, reference may be made to the content corresponding to the third aspect of the foregoing disclosure and the specific embodiment, which is not repeated herein.

The present application provides a communication system comprising a first device and a second device as described in the method embodiments above. That is, based on the description in the foregoing method embodiment, the communication system can implement the measurement method described in the present application by the first device and the second device.

The application provides a computer readable storage medium. The computer-readable storage medium stores a program or instructions. The program or instructions, when run on a computer, cause the computer to perform the measurement method as described in the method embodiments above.

A computer program product is provided in the present application. The computer program product includes instructions. The instructions, when executed on a computer, cause the computer to perform the measurement method as described in the method embodiments above.

The present application provides a chip or chip system comprising at least one processor and an interface, the interface and the at least one processor being interconnected by wires, the at least one processor being adapted to run a computer program or instructions for performing a measurement method as described in the foregoing method embodiments.

The interface in the chip may be an input/output interface, a pin, a circuit, or the like.

The above-mentioned chip system may be a System On Chip (SOC) or a baseband chip, etc., where the baseband chip may include a processor, a channel encoder, a digital signal processor, a modem, an interface module, etc.

In one implementation, the chip or chip system described above further includes at least one memory having instructions stored therein. The memory may be a memory unit within the chip, such as a register, a cache, etc., or may be a memory unit of the chip (e.g., a read-only memory, a random access memory, etc.).

The technical scheme provided by the application can be realized in whole or in part by software, hardware, firmware or any combination thereof. When implemented in software, may be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on a computer, the processes or functions in accordance with the present application are produced in whole or in part. The computer may be a general purpose computer, a special purpose computer, a computer network, a network device, a terminal device, or other programmable apparatus. The computer instructions may be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another computer-readable storage medium, for example, the computer instructions may be transmitted from one website, computer, server, or data center to another website, computer, server, or data center by a wired (e.g., coaxial cable, fiber optic, digital subscriber line (digital subscriber line, DSL)) or wireless (e.g., infrared, wireless, microwave, etc.). The computer readable storage medium may be any available medium that can be accessed by a computer or a data storage device such as a server, data center, etc. that contains an integration of one or more available media. The usable medium may be a magnetic medium (e.g., floppy disk, hard disk, magnetic tape), an optical medium (e.g., digital video disc (digital video disc, DVD)), or a semiconductor medium, etc.

In the present application, embodiments may be referred to each other, e.g., methods and/or terms between method embodiments may be referred to each other, e.g., functions and/or terms between apparatus embodiments and method embodiments may be referred to each other, without logical contradiction.

It will be apparent to those skilled in the art that various modifications and variations can be made to the present application without departing from the scope of the application. Thus, it is intended that the present application also include such modifications and alterations insofar as they come within the scope of the appended claims or the equivalents thereof.

Claims

1. A method of measurement, comprising:

the first device generates a perception measurement setup request frame,

the sensing measurement establishment request frame carries first ranging indication information for requesting the second equipment to perform ranging measurement in the sensing measurement process;

the first device sends the perceptual measurement setup request frame to the second device.

2. A method of measurement, comprising:

in response to the perception measurement setup request frame, the second device generates a perception measurement setup response frame,

The sensing measurement establishment response frame carries second ranging indication information for requesting the first equipment to perform ranging measurement in the sensing measurement process;

the second device sends the perception measurement setup response frame to the first device.

3. The method of claim 1, wherein the step of determining the position of the substrate comprises,

the first ranging indication information is carried in a sensing measurement parameter element of the sensing measurement establishment request frame.

4. The method of claim 1 or 3, wherein the sensing measurement setup request frame further carries ranging measurement parameters,

5. The method of claim 2, wherein the step of determining the position of the substrate comprises,

the second ranging indication information is carried in a sensing measurement parameter element of the sensing measurement response frame.

6. The method of claim 2 or 5, wherein the sensing measurement setup response frame further carries ranging measurement parameters,

7. The method according to claim 1, wherein the method further comprises:

the first device sends a sensing detection trigger frame to the second device, wherein the sensing detection trigger frame is used for triggering the second device to send a first empty data packet (NDP); the first NDP is used for performing sensing measurement and/or ranging measurement;

the first device receives the first NDP;

the first device sends a second NDP to the second device, wherein the second device's perception measurement and/or ranging measurement is determined based on the second NDP.

8. The method according to claim 2, wherein the method further comprises:

the second device receives a sensing detection trigger frame, wherein the sensing detection trigger frame is used for triggering the second device to send a first empty data packet (NDP); the first NDP is used for performing sensing measurement and/or ranging measurement;

the second device sends the first NDP to the first device;

the second device receives an empty data packet announcement (NDPA) sent by the first device, wherein the NDPA is used for informing the second device that the first device is to send the second NDP;

The second device receives a second NDP sent by the first device, wherein the sensing measurement result and/or the ranging measurement result of the second device are determined based on the second NDP.

9. The method of claim 7 or 8, wherein the second device is a sensing device;

10. The method of claim 9, wherein the step of determining the position of the substrate comprises,

the sensing detection trigger frame carries a measurement entity identifier for sensing measurement; wherein,,

the measurement entity identifies a first field and/or a second field carried in a common information field of the cognitive probe trigger frame, or

11. The method according to any one of claims 7 to 10, wherein,

the sensing detection trigger frame carries first indication information, the first indication information is carried in a second field in a public information field of the sensing detection trigger frame, and the value of the first indication information in the sensing detection trigger frame is a first value.

12. The method of claim 7, wherein prior to the sending the perceived probe trigger frame, the method further comprises:

the first device sends a sensing poll trigger frame to the second device;

the first device receives a first response frame from the second device for the perceived poll trigger frame, the first response frame being used to confirm that the second device is engaged in the perceived measurement and/or ranging measurement.

13. The method of claim 8, wherein prior to receiving the perceived probe trigger frame, the method further comprises:

the second device receives a perceived polling trigger frame;

the second device sends a first response frame to the first device for the perceived poll trigger frame, wherein the first response frame is used for confirming that the second device participates in the perceived measurement and/or ranging measurement.

14. The method according to claim 12 or 13, wherein the second device is a sensing device;

15. The method of claim 14, wherein the step of providing the first information comprises,

the sensing polling trigger frame carries a measurement entity identifier for sensing measurement; wherein,,

and the measurement entity identifier is carried in a first field and/or a second field in a public information field of the sensing polling trigger frame.

16. The method according to claim 12 to 15, characterized in that,

the sensing polling trigger frame carries first indication information, the first indication information is carried in a second field in a public information field of the sensing polling trigger frame, and the value of the first indication information in the sensing polling trigger frame is a second value.

17. The method according to claim 7 or 12, further comprising

The first device sends a perception report trigger frame to the second device;

the first device receives a second response frame to the sensing report trigger frame, the second response frame including a sensing measurement and/or a ranging measurement of the second device.

18. The method according to claim 8 or 13, characterized in that the method further comprises:

the second device receives a perception report trigger frame;

The second device sends a second response frame to the first device for the sensing report trigger frame, the second response frame of the sensing report trigger frame including sensing measurements and/or ranging measurements of the second device.

19. The method of claim 17 or 18, wherein the second device is a sensing device;

20. The method of claim 19, wherein the step of determining the position of the probe comprises,

the sensing report triggering frame carries a measuring entity identifier for sensing measurement; wherein,,

the measurement entity identifies a first field and/or a second field carried in a common information field of the perception report trigger frame, or

21. The method according to any one of claims 17 to 20, wherein the sensing report trigger frame carries first indication information, the first indication information being carried in a trigger related common information field of the sensing report trigger frame, and the value of the first indication information in the sensing report trigger frame is a third value.

22. The method of claim 8, wherein the NDPA carries one or more of the following information:

an association identifier associated with the sensing device;

the measurement for perception establishes an identification;

the measurement entity for perception is identified.

23. The method of claim 22, wherein the step of determining the position of the probe is performed,

the second indication information is carried in a user information field of a corresponding sensing device in the NDPA, or in a special user information field in the NDPA, or in a detection dialogue mark field in the NDPA;

24. The method of any one of claims 7 to 23, wherein the second device is a sensing device;

25. The method according to claim 17 or 18, wherein the second response frame is a perception report frame;

26. The method according to claim 17 or 18, wherein when the second response frame comprises two sensing report frames and a first sensing report frame comprises sensing measurements, a second sensing report frame comprises ranging measurements,

27. A communication device comprising functional units for performing the method of any of claims 1 to 26.

28. A communication device comprising a memory and a processor;

the memory is used for storing instructions;

the processor configured to execute the instructions such that the method of any one of claims 1 to 26 is performed.

29. A computer readable storage medium storing a computer program for execution by a processor to implement the method of any one of claims 1 to 26.