Patent ID: 6910168
Filing Date: 2005-06-21
Classification: H04L,H04W

Abstract:
1. A radio communication system comprising a primary station having means for transmitting a series of data packets to a secondary station, wherein the secondary station has means for determining whether each packet is received correctly and means for signaling this determination to the primary station, and the primary station has means for transmitting error correction information relating to a data packet which the secondary station has not received correctly to assist the secondary station in decoding that packet, means for transmitting the series of data packets via a plurality of logical channels, wherein transmission of data packets on at least one channel of the plurality of logical channels is continued while error correction information is transmitted on another channel of the plurality of logical channels, and handover means for transferring transmission of at least two channels of the plurality logical channels to another primary station, wherein the handover means comprises means for transferring each of the at least two channels individually to another primary station in response to receiving acknowledgement of successful reception of the most recently-transmitted packet on one of the at least two channels, regardless of the status of the other plurality of logical channels.