CPC H04W 74/06 (2013.01) [H04W 4/025 (2013.01); H04W 24/10 (2013.01); H04W 64/00 (2013.01); H04W 72/0446 (2013.01)] | 20 Claims |
1. A responding device, the responding device comprising processing circuitry coupled to storage, the processing circuitry configured to:
select a first availability window of a location determination associated with one or more initiating devices;
select an immediate or a delayed reporting of a first location measurement report (LMR) associated with a first initiating device of the one or more initiating devices, wherein the immediate feedback indicates that the LMR is ready within the same availability window as the measurement, and the delayed feedback indicates that the LMR is ready in the next availability window following the measurements;
during a polling phase, send a polling trigger frame to one more initiating devices during the first availability window, wherein the polling trigger frame is to request the one or more initiating devices to provide their availability to transmit their respective LMR frame based on the known readiness of the uplink LMR from each initiating device;
receive a polling response from at least one of the one or more initiating devices;
during a measurement sounding phase, send a sounding trigger frame to the one or more initiating devices to trigger responses as null data packets (NDPs) from the one or more initiating devices;
during the measurement sounding phase, receive one or more initiating devices to responding device (I2R) NDPs from the one or more initiating devices;
send a null data packet announcement (NDPA) to the one or more initiating devices;
send one or more R2I NDPs to the one or more initiating devices; and
during a location measurement reporting phase, send one or more LMRs to the one or more initiating devices.
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