Failure indication for one or more carriers in a multi-carrier communication environment

摘要

Systems and methodologies are described that facilitate indicating a loss of channel quality on a component carrier of a plurality of component carriers. A UE can monitor configured component carriers to determine channel qualities associated therewith. The UE can transmit carrier quality information that includes the channel qualities of the plurality of component carriers. In addition, the UE can identify a component carrier experiencing a loss of channel quality and notify a base station of the component carrier with poor channel conditions. In one aspect, the UE can incorporate additional information into a scheduling request. In addition, the UE can generate a CQI report that contains the carrier quality information. Further, the base station, when a loss of channel quality occurs, can retry transmission on different carriers. Moreover, the base station can employ information provided by the UE when selecting a component carrier for a transmission.

主权项

1. A method of a wireless communications apparatus, comprising:
identifying at least one component carrier, from a plurality of component carriers, experiencing a loss of channel quality; notifying a base station about the loss of channel quality on the at least one component carrier, wherein the notifying the base station comprises transmitting carrier quality information via Layer 3 signaling; and transmitting a scheduling request to the base station, wherein the scheduling request includes an indication to the base station specifying a particular anchor component carrier for the base station to utilize to transmit control information to the wireless communications apparatus when the base station is notified about the loss of channel quality on the at least one component carrier, the particular anchor component carrier being one of the plurality of component carriers, wherein the carrier quality information comprises, for at least one additional component carrier different from the at least one component carrier, a channel quality information (CQI) report for each of the at least one additional component carrier, each CQI report comprising information indicating whether a respective one of the at least one additional component carrier experiences the loss of channel quality based on channel quality measurements of the respective one of the at least one additional component carrier over a period of time.