Patent ID: 7746821
Filing Date: 2010-06-29
Classification: H04W

Abstract:
1. A broadband wireless access system comprising: a base station allocating an uplink bandwidth to each connection of each subscriber station connected with the base station according to at least one algorithm; and at least one subscriber station, when there is no packet to be sent through the uplink bandwidth allocated from the base station according to a first algorithm, sending a packet according to a second algorithm to the base station through the uplink bandwidth, wherein, when the subscriber station is allocated the uplink bandwidth from the base station according to an unsolicited grant service (UGS) algorithm, the subscriber station detects whether or not voice of a user is input, and when voice is not input, sends the packet, based on a real-time polling service (rtPS) algorithm, a non-real-time polling service (nrtPS) algorithm, or a best effect (BE) algorithm, to the base station through a bandwidth of a mute state which is a part of the uplink bandwidth, wherein, when voice is not input, the subscriber station encapsulates the packet, the packet being based on one of the algorithms other than the UGS algorithm, includes the encapsulated packet in a payload field of a UGS packet, provides an indication that the encapsulated packet is included in the UGS packet, and sends the UGS packet to the base station through the bandwidth of the mute state.