Patent ID: 8565066
Filing Date: 2013-10-22
Classification: H04L

Abstract:
1. For use in a wireless network, a subscriber station capable of communicating with a plurality of base stations and configured with two downlink carriers, the subscriber station comprising: a receiver configured to receive, on one of the two downlink carriers, at least one of a first downlink grant on a first set of Physical Downlink Control CHannel (PDCCH) control channel elements (CCEs) and a second downlink grant on a second set of PDCCH CCEs, wherein the first downlink grant schedules a Physical Downlink Shared CHannel (PDSCH) on a first downlink carrier of the two downlink carriers and the second downlink grant schedules a PDSCH on a second downlink carrier of the two downlink carriers; and a transmitter configured to derive a number of hybrid automatic repeat-request (HARQ) resource indices to convey HARQ information for the PDSCH, wherein a number of Physical Uplink Control CHannel (PUCCH) HARQ acknowledgement (HARQ-ACK) resource indices is determined based upon a number of received downlink grants and each of the PUCCH HARQ-ACK resource indices is determined according to n wherein HARQ-ACK information is conveyed by selecting one PUCCH HARQ-ACK resource among a number of PUCCH HARQ-ACK resources and transmitting a quadrature phase shift keying (QPSK) symbol on the selected PUCCH HARQ-ACK resource.