Power Decision Pilot for Wireless Communication

摘要

Techniques for transmitting power decision pilots are described. A transmitter (e.g., a base station or a UE) may transmit a power decision pilot to indicate a transmit power level that it will use on subsequent time-frequency resources. In one design, the transmitter may determine a set of time-frequency resources to use for transmitting the power decision pilot, determine the transmit power level for the power decision pilot based on the transmit power level to use for data transmission, and transmit the power decision pilot on the set of time-frequency resources to indicate the transmit power level to use for data transmission on the subsequent time-frequency resources. A receiver (e.g., a UE or a base station) may receive power decision pilots from a set of transmitters and may estimate channel quality that the receiver can expect on the subsequent time-frequency resources based on the power decision pilots.

主权项

1. A method for wireless communication by a user equipment (UE), comprising:
receiving a request to transmit a first power decision pilot; determining a first set of time-frequency resources to use for transmitting the first power decision pilot, the first set of time-frequency resources including a fraction of time-frequency resources available for transmission; in response to the request, transmitting the first power decision pilot on the first set of time-frequency resources in a first time period to indicate a first transmit power level to use for data transmission in a second time period after the first time period; receiving, from a serving base station, an uplink grant based at least in part on the first power decision pilot; and transmitting, to the serving base station, data in accordance with the uplink grant.