Patent ID: 11950286
Assignee: QUALCOMM INCORPORATED
Field: Digital communication (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. A method for wireless communication at a first wireless communications device, comprising:
transmitting, to one or more second wireless communications devices, a first message that triggers transmission of a second message by each of the one or more second wireless communications devices, the first message allocating to each of the one or more second wireless communications devices a respective frequency-based resource unit for transmission of the second message, each of the respective frequency-based resource units spanning a portion of a channel bandwidth of a channel, wherein the first message is a polling trigger frame that triggers the one or more second wireless communications devices to transmit a clear-to-send to self message as the second message on the respective frequency-based resource units;
performing channel sensing measurements on the second message received from each of the one or more second wireless communications devices, respective second messages received on the respective frequency-based resource units; and
estimating the channel based at least in part on the channel sensing measurements performed on the respective second messages received on the respective frequency-based resource units.