DETERMINING AND SENDING CHANNEL QUALITY INDICATORS (CQIS) FOR MULTIPLE CELLS

摘要

A wireless transmit/receive unit (WTRU) may determine channel quality indicators (CQIs) from measurements of downlink transmissions from many cells. CQIs for a first cell of the many cells may be transmitted by the WTRU at transmission time intervals (TTIs) and CQIs for a second cell of the many cells may not be transmitted with CQIs of the first cell. In response to expiration of a timer for the first cell, transmission of the control information may be ceased for the first cell and transmission of CQIs may continue for the second cell. Transmission of the CQIs for the second cell may be ceased in response to a received layer 2 (L2) message while transmission of CQIs for other cells continue.

主权项

1. A wireless transmit/receive unit (WTRU) comprising:
a processor configured to determine a plurality of channel quality indicators (CQIs) from measurements of downlink transmissions from a plurality of cells; the processor and a transmitter are configured to transmit, to a network, control information in transmission time intervals (TTIs) on a physical control channel, wherein CQIs for a first cell of the plurality of cells are transmitted in a set of TTIs, that are separated by at least one TTI, and wherein CQIs for a second cell of the plurality of cells are not transmitted in the set of TTIs; wherein a timer is configured in relation to a control signal received by the WTRU; wherein, in response to expiration of the timer for the first cell, the transmission of the control information is ceased for the first cell and transmission of CQIs continue for the second cell; and wherein the transmission of the CQIs for the second cell is ceased in response to a received layer 2 (L2) message while transmission of CQIs for at least one other of the plurality of cells continues.