Patent ID: 9660771
Date: 2017-05-23
CPC Classifications: H04L,H04W

Claim:
1. A method to perform an uplink hybrid automatic repeat request (HARQ) operation in an asymmetric multicarrier communication network environment, the method comprising: receiving, by a mobile station, resource allocation information to transmit a new HARQ packet in a resource allocation region in a scheduling interval of a first carrier from a base station; transmitting the HARQ packet to the base station in a transmit time interval corresponding one of a first partition and a second partition of an uplink allocation interval on a second carrier based on the resource allocation information; receiving HARQ feedback information corresponding to a previous HARQ packet transmission in a HARQ feedback control region on the first carrier from the base station; determining a transmit time interval for HARQ packet retransmission based on the partition of the uplink allocation interval in which the previous HARQ packet transmission occurred and a retransmission interval associated with the previous HARQ packet transmission if the HARQ feedback information indicates a negative acknowledgement of the previous HARQ packet transmission; and retransmitting the HARQ packet to the base station in the determined transmit time interval of a subsequent uplink allocation interval on the second carrier, wherein the determined transmit time interval is at a first retransmission interval from the transmit time interval of the previous HARQ packet transmission if a first HARQ packet is transmitted in the first partition of the uplink allocation interval, and wherein the determined transmit time interval is at a second retransmission interval from the transmit time interval of the previous HARQ packet transmission if the first HARQ packet is transmitted in the second partition of the uplink allocation interval.