US2013155984A1

5G,4G,3G

Title

METHOD AND AN APPARATUS FOR PROVIDING CONTROL INFORMATION FOR MULTI-CARRIER UPLINK TRANSMISSION

Application Number:

US201313766180

Publication Date:

20-06-2013

Current Assignee:

INTERDIGITAL INC

Family ID:

41682399

Application Date:

13-02-2013

Publication Country:

US

View on Espacenet

Priority Date:

31-10-2008

Declaring Company:

INTERDIGITAL INC

Abstract  Abstract

A method and an apparatus for providing control information for multi-carrier uplink transmission are disclosed. A wireless transmit/receive unit (WTRU) may set a happy bit for enhanced dedicated channel (E-DCH) transmissions on each uplink carrier considering aggregated transmission capability over all uplink carriers. The happy bit is set to unhappy if the WTRU is transmitting as much scheduled data as allowed by a current serving grant the WTRU has enough power available to transmit at a higher rate and total E-DCH buffer status (TEBS) requires more than a pre-configured period to be transmitted with a current effective data rate aggregated over all uplink carriers. The WTRU may send scheduling information including power headroom measured on the anchor uplink carrier and/or power headroom measured on the supplementary uplink carrier. For power headroom measurements the WTRU may initiate a short-lived dedicated physical control channel loop on the supplementary carrier.

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