TRACKING RECEIVED POWER IN WIRELESS COMMUNICATIONS

摘要

A plurality of signal transmissions, transmitted using a plurality of transmit powers, are received at a receiver over a communication channel. Each transmit power shares a common transmit power term unknown to the receiver and a signal-specific power offset known to the receiver. The received power is measured at the receiver. A corresponding known power offset is subtracted from the measured received signal power, resulting in a corresponding estimate of the common unknown power term. This results in a plurality of estimates of the common transmit power term. A refined common transmit power term is estimated from the plurality of estimates of the common transmit power term. A plurality of refined measured received signal powers are estimated by adding the plurality of signal-specific power offsets to the refined common power term. Based on the refined common transmit power term, a functionality of the wireless communication system is adapted.

主权项

1. A method implementable in a wireless communication system, comprising:
receiving, at a receiver, a plurality of signal transmissions over a communication channel, the plurality of signal transmissions being transmitted using a plurality of transmit powers, each transmit power sharing a common transmit power term unknown to the receiver and a plurality of signal-specific power offsets known to the receiver; measuring received power at the receiver; subtracting a corresponding known power offset from the measured received signal power, resulting in a corresponding estimate of the common unknown power term, thereby resulting in a plurality of estimates of the common transmit power term; estimating a refined common transmit power term from the plurality of estimates of the common transmit power term; obtaining a plurality of refined measured received signal powers by adding the plurality of signal-specific power offsets to the refined common power term; and adapting, based on the refined common transmit power term, a functionality of the wireless communication system.