Method and apparatus for component carrier aggregation in wireless

摘要

A wireless transmit/receive unit (WTRU) receives a downlink subframe having multiple component carriers, each component carrier having control information encoded in a physical data control channel (PDCCH). The WTRU performs a blind decoding of control information in a first PDCCH located within a first component carrier to obtain a location of a second PDCCH located within a second component carrier, where the location of the second PDCCH is relative to a location of the first PDCCH as control channel element offset. The WTRU decodes the second PDCCH at the obtained location.

主权项

1. A method implemented by a wireless transmit/receive unit (WTRU), the method comprising:
the WTRU determining a starting control channel element (CCE) location used by the WTRU to determine where to attempt to decode a first physical downlink control channel (PDCCH) transmission that comprises downlink control information (DCI) corresponding to a physical downlink shared channel (PDSCH) transmission on a first component carrier; the WTRU attempting to decode a second PDCCH transmission that comprises DCI corresponding to a PDSCH transmission on a second component carrier, wherein the WTRU determines a location for attempting to decode the second PDCCH transmission based on the starting CCE location and a CCE offset value; and the WTRU receiving the first PDCCH transmission and the second PDCCH transmission on the first component carrier.