Patent ID: 9602248
Date: 2017-03-21
CPC Classifications: H04L

Claim:
1. A method for allowing a mobile station to transmit an automatic repeat request (ARQ) feedback in a broadband wireless access system, the method comprising: receiving, by the mobile station, at least one ARQ block from a base station; receiving, by the mobile station, an ARQ feedback poll from the base station, wherein the ARQ feedback poll requests the mobile station to transmit ARQ feedback information indicating a reception status of the at least one ARQ block; and transmitting, by the mobile station, the ARQ feedback information to the base station, wherein the ARQ feedback information selectively comprises one of a first type of ARQ feedback information which cumulatively indicates the reception status and a second type of ARQ feedback information which selectively indicates the reception status, wherein the mobile station is assigned unsolicited bandwidth associated with a first uplink resource for transmitting the ARQ feedback information of the first type, wherein, when a size of the ARQ feedback information of the first type is smaller than that of the first uplink resource, the ARQ feedback information of the first type is transmitted by the mobile station to the base station through the first uplink resource, and wherein, when the size of the ARQ feedback information of the first type is larger than that of the first uplink resource, a bandwidth request (BR) header is transmitted by the mobile station to the base station through the first uplink resource, the BR header requesting a second uplink resource having a specific size suitable for transmitting the ARQ feedback information.