Patent ID: 9591587
Date: 2017-03-07
CPC Classifications: H04W

Claim:
1. A method for wireless communications, comprising: sending, by a transmitter, a reference signal at a first power level, wherein the reference signal comprises an information field associated with a first predetermined pathloss value; determining, by the transmitter, that a pathloss value for a receiver associated with the transmitter is lower than the first predetermined pathloss value, the determining based at least in part on a failure to receive a response to the reference signal from the receiver, wherein the failure to receive the response to the reference signal indicates that the receiver received the reference signal at a received power level above a threshold level; modifying the information field associated with the first predetermined pathloss value based on the failure to receive the response, wherein modifying the information field comprises identifying a second predetermined pathloss value, the second predetermined pathloss value being lower than the first predetermined pathloss value; re-sending, by the transmitter, the reference signal at the first power level, the reference signal comprising the modified information field associated with the second predetermined pathloss value; determining whether the pathloss value for the receiver is greater than the second predetermined pathloss value based at least in part on whether a response to the reference signal is received; and transmitting a signal at a transmission power based at least in part on the determining that the pathloss value for the receiver is greater than the second predetermined pathloss value.