Granted Patent B2

US 12,621,699 · App. 18/395,543 · Granted May 5, 2026

Inventors: Oscar Chi-Lim Au (Rockville, MD); Beibei Wang (Clarksville, MD); K. J. Ray Liu (Potomac, MD); Hung-Quoc Duc Lai (Parkville, MD)

Assignee: ORIGIN RESEARCH WIRELESS, INC.

H04W24/10H04W88/182

Abstract

Claims (128)

1 . A standardized proxy wireless sensing method, comprising:

configuring a proxy initiator device in a wireless data communication network to (1) select a particular device in the wireless data communication network to function as a particular selected sensing responder device for a standardized proxy wireless sensing and (2) perform the standardized proxy wireless sensing by requesting a proxy responder device to cause wireless sensing measurements to be performed in the wireless data communication network by a plurality of sensing responder devices in the wireless data communication network comprising the particular selected sensing responder device to generate sensing measurement results based on wireless sounding signals communicated among the proxy responder device, the particular selected sensing responder device and the rest of the plurality of sensing responder devices, wherein the proxy initiator device, the proxy responder device and the particular selected sensing responder device are three different devices;

wirelessly transmitting, by the proxy initiator device performing the standardized proxy wireless sensing, a proxy sensing request message to the proxy responder device in the wireless data communication network based on a standard wireless network protocol to request the proxy responder device to, as a proxy of the proxy initiator device, perform wireless sensing in the wireless data communication network as a sensing initiator device on its behalf with the particular selected sensing responder device identified in the proxy sensing request message and with the rest of the plurality of sensing responder devices;

initiating, by the proxy responder device in response to the proxy sensing request message from the proxy initiator device, sensing sessions as the sensing initiator device with the plurality of sensing responder devices comprising the particular selected sensing responder device identified in the proxy sensing request message based on the standard wireless network protocol to perform wireless sensing measurements to generate sensing measurement results based on wireless sounding signals communicated among the plurality of sensing responder devices and the sensing initiator device, wherein the particular selected sensing responder device is selected by the proxy initiator device;

initiating, by the proxy responder device, as the sensing initiator device, one of the sensing sessions with the particular selected sensing responder device based on an identification of the particular selected sensing responder device specified by the proxy initiator device in the proxy sensing request message;

providing a report in a report frame either (1) non-locally by the particular selected sensing responder device to the sensing initiator device, or (2) locally from a physical (PHY) layer or a medium access control (MAC) layer of the particular selected sensing responder device to a higher layer of the particular selected sensing responder device, or (3) both, according to a bit pattern in a configuration field of a sensing measurement setup request message based on the standard wireless network protocol,

wherein:

when the configuration field has a first-type bit pattern, the report is provided locally to the higher layer of the particular selected sensing responder device in a first reporting way but not to any device other than the particular selected sensing responder device, according to the standard wireless network protocol,

when the configuration field has a second-type bit pattern, the report is provided both locally to the higher layer of the particular selected sensing responder device in the first reporting way and non-locally to the sensing initiator device other than the particular selected sensing responder device in a second reporting way different from the first reporting way, according to the standard wireless network protocol, and

the sensing measurement setup request message is transmitted by the proxy responder device to the particular selected sensing responder device in response to the proxy sensing request message from the proxy initiator device; and

performing a sensing task to produce a sensing task result by at least one processor based on the sensing measurement results obtained from the wireless sensing measurements.

2 . The standardized proxy wireless sensing method of claim 1 , further comprising:

selecting the particular selected sensing responder device by the proxy initiator device; and

specifying an identity (ID) of the particular selected sensing responder device in a first field of the proxy sensing request message by the proxy initiator device.

3 . The standardized proxy wireless sensing method of claim 2 , further comprising:

using a first bit pattern of a third field in the proxy sensing request message to specify a presence of the ID of the particular selected sensing responder device in the proxy sensing request message; and

using a second bit pattern of the third field in the proxy sensing request message to specify an absence of the ID of the particular selected sensing responder device in the proxy sensing request message.

4 . The standardized proxy wireless sensing method of claim 2 , wherein the ID of the particular selected sensing responder device comprises one of:

a medium access control (MAC) address, a network address, a network ID, an internet protocol (IP) address, a multicast ID, an ID in a network associated with the proxy responder device, a name, an identifying number, an alphanumeric ID, a representation, a device ID, a device name, a device product name, a host name, a client name, a vendor ID, a vendor class ID, a serial number, a host ID, a client ID, a UUID, or a GUID.

5 . The standardized proxy wireless sensing method of claim 1 , further comprising:

configuring the proxy initiator device to select a number of particular selected sensing responder devices;

selecting the number of particular selected sensing responder devices by the proxy initiator device;

indirectly causing wireless sensing measurements to be performed by the number of particular selected sensing responder devices to obtain sensing measurement results based on wireless sounding signals communicated by the number of selected sensing devices;

wirelessly transmitting the proxy sensing request message by the proxy initiator device to the proxy responder device based on the standard wireless network protocol to request the proxy responder device to function as a sensing initiator device to initiate sensing sessions with a plurality of sensing responder devices comprising the number of particular selected sensing responder devices based on the standard wireless network protocol to perform wireless sensing measurements to obtain sensing measurement results based on wireless sounding signals communicated among the proxy responder device, the number of particular selected sensing responder devices and the rest of the plurality of sensing responder devices, wherein the number of particular selected sensing responder devices are requested in the proxy sensing request message,

wherein in response to the proxy sensing request message from the proxy initiator device, initiating a respective sensing session by the proxy responder device with each respective particular selected sensing responder device of the number of particular selected sensing responder devices selected by the proxy initiator device to perform respective wireless sensing measurements to obtain respective sensing measurement results based on respective wireless sounding signals communicated by the respective particular selected sensing responder device.

6 . The standardized proxy wireless sensing method of claim 5 , further comprising:

specifying a plurality of ID's in a first field of the proxy sensing request message by the proxy initiator device,

wherein the plurality of ID's comprise an ID of each of the number of particular selected sensing responder devices.

7 . The standardized proxy wireless sensing method of claim 6 , further comprising:

specifying an amount of the plurality of ID's in a second field of the proxy sensing request message by the proxy initiator device,

wherein the amount is greater than or equal to a quantity of the number of particular selected sensing responder devices.

8 . The standardized proxy wireless sensing method of claim 7 , further comprising:

using a first bit pattern of a third field in the proxy sensing request message to specify a presence, in the proxy sensing request message, of both (a) the plurality of ID's in the first field comprising the ID of the number of particular selected sensing responder devices and (b) the amount in the second field; and

using a second bit pattern of the third field in the proxy sensing request message to specify an absence, in the proxy sensing request message, of both (a) the plurality of ID's in the first field comprising the ID of the number of particular selected sensing responder devices and (b) the amount in the second field.

9 . The standardized proxy wireless sensing method of claim 1 , further comprising:

in response to the proxy sensing request message, wirelessly transmitting a proxy sensing response message by the proxy responder device to the proxy initiator device, using a first bit pattern in a first field of the proxy sensing response message to confirm that the proxy responder device will function as the sensing initiator device to initiate sensing sessions with a plurality of sensing responder devices comprising the number of particular selected sensing responder devices requested in the proxy sensing request message based on the standard wireless network protocol to perform wireless sensing measurements to obtain sensing measurement results based on wireless sounding signals communicated among the proxy responder device, the number of particular selected sensing responder devices, and the rest of the plurality of sensing responder devices.

10 . The standardized proxy wireless sensing method of claim 9 , further comprising:

in response to the proxy sensing request message from the proxy initiator device, wirelessly transmitting by the proxy responder device a respective sensing measurement setup request message to each of the plurality of sensing responder devices comprising the number of particular selected sensing responder devices specified in the proxy sensing request message wherein a respective third bit pattern in a respective third field in the respective sensing measurement setup request message is used by the proxy responder device to request to start a respective sensing session to perform respective wireless sensing measurements;

in response to the respective sensing measurement setup request message from the proxy responder device, wirelessly transmitting a respective sensing measurement setup response message to the proxy responder device by each of the plurality of sensing responder devices comprising the number of particular selected sensing responder devices requested by the proxy initiator device in the proxy sensing request message, wherein a respective fourth bit pattern of a respective fourth field of the respective sensing measurement setup response message is used by the particular selected sensing responder device to agree to start the respective sensing session to perform the respective wireless sensing measurements; and

in response to the proxy sensing request message from the proxy initiator device and the number of sensing measurement setup response messages from the plurality of sensing responder devices, wirelessly transmitting the proxy sensing response message with the first bit pattern in the first field by the proxy responder device to the proxy initiator device.

11 . The standardized proxy wireless sensing method of claim 1 , further comprising:

in response to the proxy sensing request message from the proxy initiator device, wirelessly transmitting a proxy sensing response message by the proxy responder device to the proxy initiator device, using a second bit pattern in a first field of the proxy sensing response message to confirm that the proxy responder device will function as the sensing initiator device to initiate sensing sessions with the plurality of sensing responder devices excluding the particular selected sensing responder device requested by the proxy initiator device in the proxy sensing request message based on the standard wireless network protocol to perform wireless sensing measurements to obtain sensing measurement results based on wireless sounding signals communicated among the proxy responder device and the plurality of sensing responder devices excluding the particular selected sensing responder device.

12 . The standardized proxy wireless sensing method of claim 11 , further comprising:

in response to the proxy sensing request message from the proxy initiator device, wirelessly transmitting by the proxy responder device the sensing measurement setup request message to the particular selected sensing responder device specified by the proxy initiator device in the proxy sensing request message, using a third bit pattern in a third field in the sensing measurement setup request message by the proxy responder device to request to start a sensing session with the particular selected sensing responder device to perform wireless sensing measurements;

in response to the sensing measurement setup request message from the proxy responder device, wirelessly transmitting a sensing measurement setup response message by the particular selected sensing responder device to the proxy responder device using a fifth bit pattern in a fourth field to decline the request to start a sensing session to perform wireless sensing measurements; and

in response to the proxy sensing request message from the proxy initiator device and the sensing measurement setup response message from the particular selected sensing responder device, wirelessly transmitting the proxy sensing response message with the second bit pattern in the first field by the proxy responder device to the proxy initiator device to indicate that the particular selected sensing responder device will not be involved in the wireless sensing measurements.

13 . The standardized proxy wireless sensing method of claim 10 , further comprising:

specifying a respective sensing measurement parameter using a respective sixth bit pattern in a respective sixth field in the respective sensing measurement setup request message sent to each respective particular selected sensing responder device by the proxy responder device;

performing the respective wireless sensing measurements based on the standard wireless network protocol according to the respective sensing measurement parameter by the respective particular selected sensing responder device based on respective wireless sounding signals communicated by the respective particular selected sensing responder device.

14 . The standardized proxy wireless sensing method of claim 13 , further comprising:

specifying a respective requested parameter related to the respective sensing measurement parameter by the proxy initiator device in the proxy sensing request message to the proxy responder device.

15 . The standardized proxy wireless sensing method of claim 14 , wherein:

the respective requested parameter specified in the proxy sensing request message transmitted from the proxy initiator device to the proxy responder device is equivalent to the respective sensing measurement parameter specified in the respective sensing measurement setup request message transmitted from the proxy responder device to each of the plurality of sensing responder devices.

16 . The standardized proxy wireless sensing method of claim 13 , further comprising performing the respective wireless sensing measurements based on the standard wireless network protocol by:

functioning as a respective sensing transmitter device by the respective particular selected sensing responder device according to the respective sensing measurement parameter;

transmitting respective wireless sounding signals by the respective particular selected sensing responder device to a respective sensing receiver device in the plurality of sensing responder devices; and

generating respective sensing measurement results by the respective sensing receiver device based on the respective received wireless sounding signals.

17 . The standardized proxy wireless sensing method of claim 16 , further comprising:

obtaining, by the proxy initiator device, the respective sensing measurement results provided by the respective sensing receiver device via the proxy responder device to the proxy initiator device based on the standard wireless network protocol; and

performing the sensing task to produce the sensing task result by the at least one processor of the proxy initiator device based on the obtained respective sensing measurement results.

18 . The standardized proxy wireless sensing method of claim 13 , further comprising performing the respective wireless sensing measurements based on the standard wireless network protocol by:

functioning as a respective sensing receiver device by the respective particular selected sensing responder device according to the respective sensing measurement parameter;

receiving respective wireless sounding signals from a respective sensing transmitter device in the plurality of sensing responder devices by the respective particular selected sensing responder device; and

generating respective sensing measurement results by the respective particular selected sensing responder device based on the respective received wireless sounding signals.

19 . The standardized proxy wireless sensing method of claim 18 , further comprising performing the respective wireless sensing measurements further by:

providing the respective sensing measurement results locally by the respective particular selected sensing responder device from either a physical (PHY) layer or a medium access control (MAC) layer of the respective particular selected sensing responder device to at least one higher layer of the respective particular selected sensing responder device.

20 . The standardized proxy wireless sensing method of claim 19 , further comprising:

performing the sensing task to produce the sensing task result by a respective processor of the respective particular selected sensing responder device in the at least one higher layer of the respective particular selected sensing responder device based on the respective sensing measurement results provided locally by either the PHY layer or MAC layer of the respective particular selected sensing responder device.

21 . The standardized proxy wireless sensing method of claim 18 , further comprising performing the respective wireless sensing measurements further by:

providing, by the respective particular selected sensing responder device, the respective sensing measurement results non-locally by wirelessly reporting the respective sensing measurement results to the proxy responder device according to the standard wireless network protocol; and

providing the respective sensing measurement results wirelessly by the proxy responder device to the proxy initiator device according to the standard wireless network protocol.

22 . The standardized proxy wireless sensing method of claim 21 , further comprising:

obtaining, by the proxy initiator device, the respective sensing measurement results provided by the respective particular selected sensing responder device via the proxy responder device to the proxy initiator device; and

performing the sensing task to produce the sensing task result by the at least one processor of the proxy initiator device based on the obtained respective sensing measurement results.

23 . The standardized proxy wireless sensing method of claim 1 , wherein:

the standard wireless network protocol is at least one of: a wireless LAN (WLAN) standard protocol, a mobile communication standard protocol, a WLAN standard, a Wi-Fi standard, an IEEE 802 standard, an IEEE 802.11 standard, or an IEEE 802.11bf standard;

the proxy responder device is an access point (AP) device; and

the sensing measurement results comprise a plurality of channel information (CI) of wireless channels associated with the standard wireless network protocol and the wireless sounding signals (WSS), each CI comprising at least one of: a channel state information (CSI), a channel impulse response (CIR), or a channel frequency response (CFR) obtained based on a respective WSS.

24 . A standardized proxy wireless sensing system, comprising:

a processor of a proxy initiator device in a wireless data communication network configured to (1) select a number of particular selected sensing responder devices in the wireless data communication network for a standardized proxy wireless sensing, and to (2) perform the standardized proxy wireless sensing by specifying the number of particular selected sensing responder devices and requesting a proxy responder device in the wireless data communication network to perform wireless sensing on its behalf by causing wireless sensing measurements to be performed by a plurality of sensing responder devices comprising the number of particular selected sensing responder devices specified by the proxy initiator device to generate sensing measurement results based on wireless sounding signals communicated among the proxy responder device, the number of particular selected sensing responder devices and the rest of the plurality of sensing responder devices;

the proxy initiator device configured to wirelessly transmit a proxy sensing request message to the proxy responder device based on a standard wireless network protocol to request the proxy responder device to, as a proxy of the proxy initiator device, perform wireless sensing on its behalf with the number of particular selected sensing responder devices identified in the proxy sensing request message and with the rest of the plurality of sensing responder devices, wherein:

the proxy initiator device, the proxy responder device and the number of particular selected sensing responder devices are different devices,

the proxy responder device is requested by the proxy initiator device to perform the wireless sensing by functioning as a sensing initiator device to initiate sensing sessions with the plurality of sensing responder devices comprising the number of particular selected sensing responder devices based on the standard wireless network protocol to perform wireless sensing measurements to generate sensing measurement results based on wireless sounding signals communicated among the proxy responder device, the number of particular selected sensing responder devices and the rest of the plurality of sensing responder devices,

the number of particular selected sensing responder devices are identified and requested in the proxy sensing request message transmitted from the proxy initiator device to the proxy responder device;

the proxy responder device configured to, in response to the proxy sensing request message, initiate, as the sensing initiator device, a respective sensing sessions with each respective one of the number of particular selected sensing responder devices based on a respective identification of the respective particular selected sensing responder device specified by the proxy initiator device in the proxy sensing request message;

the number of particular selected sensing responder devices comprising a particular selected sensing responder device configured to provide a report in a report frame either (1) non-locally by the particular selected sensing responder device to the sensing initiator device, or (2) locally from a physical (PHY) layer or a medium access control (MAC) layer of the particular selected sensing responder device to a higher layer of the particular selected sensing responder device, or (3) both, according to a bit pattern in a configuration field of a sensing measurement setup request message based on the standard wireless network protocol,

wherein:

when the configuration field has a first-type bit pattern, the report is provided locally to the higher layer of the particular selected sensing responder device in a first reporting way but not to any device other than the particular selected sensing responder device, according to the standard wireless network protocol,

when the configuration field has a second-type bit pattern, the report is provided both locally to the higher layer of the particular selected sensing responder device in the first reporting way and non-locally to the sensing initiator device other than the particular selected sensing responder device in a second reporting way different from the first reporting way, according to the standard wireless network protocol, and

the sensing measurement setup request message is transmitted by the proxy responder device to the particular selected sensing responder device in response to the proxy sensing request message from the proxy initiator device; and

at least one processor configured to perform a sensing task to produce a sensing task result based on the sensing measurement results obtained from the wireless sensing measurements.

25 . The standardized proxy wireless sensing system of claim 24 , wherein:

a plurality of identities (ID's) are specified in a first field of the proxy sensing request message by the proxy initiator device to request the proxy responder device to perform the wireless sensing with the number of particular selected sensing responder devices, the plurality of ID's comprising an identify (ID) of each of the number of particular selected sensing responder devices;

an amount of the plurality of ID's is specified in a second field of the proxy sensing request message by the proxy initiator device, wherein the amount is greater than or equal to a quantity of the number of particular selected sensing responder devices;

a first bit pattern of a third field in the proxy sensing request message is used to specify a presence, in the proxy sensing request message, of both (a) the plurality of ID's in the first field comprising the ID of the number of particular selected sensing responder devices and (b) the amount in the second field; and

a second bit pattern of the third field in the proxy sensing request message is used to specify an absence, in the proxy sensing request message, of both (a) the plurality of ID's in the first field comprising the ID of the number of particular selected sensing responder devices and (b) the amount in the second field.

26 . The standardized proxy wireless sensing system of claim 24 , wherein:

in response to the proxy sensing request message from the proxy initiator device, a proxy sensing response message is wirelessly transmitted by the proxy responder device to the proxy initiator device, using a first bit pattern in a first field of the proxy sensing response message to confirm that the proxy responder device will function as a sensing initiator device to initiate sensing sessions with a plurality of sensing responder devices comprising the number of particular selected sensing responder devices specified in the proxy sensing request message based on the standard wireless network protocol to perform wireless sensing measurements to obtain sensing measurement results based on wireless sounding signals communicated among the proxy responder device, the number of particular selected sensing responder devices and the rest of the plurality of sensing responder devices;

in response to the proxy sensing request message from the proxy initiator device, a respective sensing measurement setup request message is wirelessly transmitted by the proxy responder device to each respective particular selected sensing responder device of the number of particular selected sensing responder devices specified by the proxy initiator device in the proxy sensing request message wherein a respective third bit pattern in a respective third field in the respective sensing measurement setup request message is used by the proxy responder device to request the respective particular selected sensing responder device to start a respective sensing session to perform respective wireless sensing measurements;

in response to the respective sensing measurement setup request message from the proxy responder device, a respective sensing measurement setup response message is wirelessly transmitted by the respective particular selected sensing responder device to the proxy responder device wherein a respective fourth bit pattern of a respective fourth field of the respective sensing measurement setup response message is used by the respective particular selected sensing responder device to agree to start the respective sensing session to perform respective wireless sensing measurements; and

in response to the proxy sensing request message from the proxy initiator device and the respective sensing measurement setup response message from each of the number of particular selected sensing responder devices, the proxy sensing response message with the first bit pattern in the first field is wirelessly transmitted by the proxy responder device to the proxy initiator device.

27 . The standardized proxy wireless sensing system of claim 26 , wherein:

a respective sensing measurement parameter is specified by the proxy responder device in a respective sixth bit pattern in a respective sixth field in the respective sensing measurement setup request message to the respective particular selected sensing responder device;

the respective wireless sensing measurements are performed based on the standard wireless network protocol according to the respective sensing measurement parameter by the respective particular selected sensing responder device based on respective wireless sounding signals communicated by the respective particular selected sensing responder device;

a respective requested parameter related to the respective sensing measurement parameter is specified by the proxy initiator device in the proxy sensing request message to the proxy responder device; and

the respective requested parameter in the proxy sensing request message transmitted from the proxy initiator device to the proxy responder device is equivalent to the respective sensing measurement parameter in the respective sensing measurement setup request message transmitted from the proxy responder device to each of the number of particular selected sensing responder devices.

28 . The standardized proxy wireless sensing system of claim 27 , wherein the respective wireless sensing measurements are performed by the respective particular selected sensing responder device based on the standard wireless network protocol by:

functioning as a sensing receiver device by the respective particular selected sensing responder device according to the respective sensing measurement parameter;

receiving respective wireless sounding signals from a respective sensing transmitter device in the plurality of sensing responder devices by the respective particular selected sensing responder device;

generating respective sensing measurement results by the respective particular selected sensing responder device based on the respective received wireless sounding signals; and

providing the respective sensing measurement results by the respective particular selected sensing responder device locally from either a physical (PHY) layer or a medium access control (MAC) layer of the respective particular selected sensing responder device to at least one higher layer of the respective particular selected sensing responder device, or non-locally from the respective particular selected sensing responder device via the proxy responder device to the proxy initiator device.

29 . A proxy initiator device in a standardized proxy wireless sensing system, comprising:

a memory;

a processor communicatively coupled to the memory, and configured to (1) select a number of particular selected sensing responder devices in a wireless data communication network for a standardized proxy wireless sensing, and (2) perform the standardized proxy wireless sensing by specifying the number of particular selected sensing responder devices and requesting a proxy responder device in the wireless data communication network to perform wireless sensing on its behalf by causing wireless sensing measurements to be performed by a plurality of sensing responder devices comprising the number of particular selected sensing responder devices to generate sensing measurement results based on wireless sounding signals communicated among the proxy responder device, the number of particular selected sensing responder devices and the rest of the plurality of sensing responder devices; and

a transmitter-receiver (transceiver) communicatively coupled to the memory and the processor, and configured to wirelessly transmit, to the proxy responder device based on a standard wireless network protocol, a proxy sensing request message requesting the proxy responder device to, as a proxy of the proxy initiator device, perform wireless sensing on its behalf with the number of particular selected sensing responder devices identified in the proxy sensing request message and with the rest of the plurality of sensing responder devices, wherein:

the proxy initiator device, the proxy responder device and the number of particular selected sensing responder devices are different devices,

the proxy responder device is requested by the proxy initiator device to perform the wireless sensing by functioning as a sensing initiator device to initiate sensing sessions with the plurality of sensing responder devices comprising the number of particular selected sensing responder devices based on the standard wireless network protocol to perform wireless sensing measurements to generate sensing measurement results based on wireless sounding signals communicated among the proxy responder device, the number of particular selected sensing responder devices and the rest of the plurality of sensing responder devices,

the number of particular selected sensing responder devices are identified and requested in the proxy sensing request message transmitted from the proxy initiator device to the proxy responder device,

in response to the proxy sensing request message from the proxy initiator device, a respective sensing sessions is initiated by the proxy responder device with each respective one of the number of particular selected sensing responder devices based on a respective identification of the respective particular selected sensing responder device specified by the proxy initiator device in the proxy sensing request message,

a report is provided in a report frame either (1) non-locally by the respective particular selected sensing responder device to the sensing initiator device, or (2) locally from a physical (PHY) layer or a medium access control (MAC) layer of the respective particular selected sensing responder device to a higher layer of the respective particular selected sensing responder device, or (3) both, according to a bit pattern in a configuration field of a sensing measurement setup request message based on the standard wireless network protocol,

when the configuration field has a first-type bit pattern, the report is provided locally to the higher layer of the particular selected sensing responder device in a first reporting way but not to any device other than the particular selected sensing responder device, according to the standard wireless network protocol,

when the configuration field has a second-type bit pattern, the report is provided both locally to the higher layer of the particular selected sensing responder device in the first reporting way and non-locally to the sensing initiator device other than the particular selected sensing responder device in a second reporting way different from the first reporting way, according to the standard wireless network protocol, and

the sensing measurement setup request message is transmitted by the proxy responder device to the respective particular selected sensing responder device in response to the proxy sensing request message from the proxy initiator device.

30 . The proxy initiator device of claim 29 , wherein:

a plurality of identities (ID's) are specified in a first field of the proxy sensing request message by the proxy initiator device to request the proxy responder device to perform the wireless sensing with the number of particular selected sensing responder devices, the plurality of ID's comprising an identify (ID) of each of the number of particular selected sensing responder devices;

an amount of the plurality of ID's is specified in a second field of the proxy sensing request message by the proxy initiator device, wherein the amount is greater than or equal to a quantity of the number of particular selected sensing responder devices;

a first bit pattern of a third field in the proxy sensing request message is used to specify a presence, in the proxy sensing request message, of both (a) the plurality of ID's in the first field comprising the ID of the number of particular selected sensing responder devices and (b) the amount in the second field; and

a second bit pattern of the third field in the proxy sensing request message is used to specify an absence, in the proxy sensing request message, of both (a) the plurality of ID's in the first field comprising the ID of the number of particular selected sensing responder devices and (b) the amount in the second field.

Assignments (1)

Continuity (15)

References Cited (7)