System and method for adaptive channel estimation based on data activity

摘要

A station performing a method to toggle a channel estimation setting between a full channel estimation that includes estimating the channel based upon a predetermined number of received reference symbols prior to a current subframe and a partial channel estimation that includes estimating the channel based upon a subset of the predetermined number of received reference symbols. The method includes changing the setting from full to partial when a predetermined number of consecutive subframes immediately prior to the current subframe had no downlink allocated and a reliability value indicates that control signals are capable of being reliably received. The method also includes changing the setting from partial to full when the current subframe had a downlink allocated thereto or the reliability value indicates that the control signals are incapable of being received to estimate the channel using the partial channel estimation.

主权项

1. A method, comprising:
at a station:
determining a setting to perform a channel estimation, the setting being one of a full channel estimation and a partial channel estimation, the full channel estimation including estimating the channel based upon a predetermined number of received reference symbols prior to a current subframe, the partial channel estimation including estimating the channel based upon a subset of the predetermined number of received reference symbols;changing the setting from the full channel estimation to the partial channel estimation when a predetermined number of consecutive subframes immediately prior to the current subframe had no downlink allocated thereto and a reliability value indicates that control signals are capable of being received to estimate the channel using the partial channel estimation; andchanging the setting from the partial channel estimation to the full channel estimation when one of the current subframe had a downlink allocated thereto or the reliability value indicates that the control signals are incapable of being received to estimate the channel using the partial channel estimation.