Channel quality measurements for downlink resource allocation

摘要

A method for reporting channel quality from a user equipment (UE) to a base station is described. The UE derives a channel quality for each of a plurality of downlink resources. The UE transmits channel quality reports in a pattern of time intervals by rotating through the plurality of downlink resources in different time intervals of the pattern, wherein a channel quality report is not transmitted by the UE in each time interval of a frame.

主权项

1. A user equipment comprising:
a receiver configured to receive downlink resource allocations from a base station, wherein a received downlink resource allocation indicates to the user equipment which downlink resources of a plurality of downlink resources have been allocated to the user equipment for a downlink transmission; a measurement device configured to perform a plurality of downlink measurements for the plurality of downlink resources, wherein the plurality of downlink measurements are performed to determine channel quality information associated with one or more of the plurality of downlink resources; a channel quality determination device configured to:
determine a first channel quality indication, wherein the first channel quality indication is used to indicate to the base station a modulation and coding set (MCS) that has been determined based on a channel quality of the plurality of downlink resources, anddetermine at least a second channel quality indication, wherein the second channel quality indication is used to indicate to the base station an MCS that has been determined based on a channel quality of a particular downlink resource of the plurality of downlink resources; and a transmitter configured to transmit at least one channel quality report to the base station, wherein the at least one channel quality report comprises the first channel quality indication and the second channel quality indication, and the second channel quality indication is reported as a differential channel quality with respect to the first channel quality indication.