Patent ID: 7835323
Filing Date: 2010-11-16
Classification: H04J,H04L,H04W

Abstract:
1. An operation method of a mobile subscriber (MS) for data exchange between the MS and a base station (BS) in a multicarrier communication system including the MS, and the BS providing a service to the MS, the method comprising the steps of: dividing a full frequency band of the communication system into a plurality of sub-carrier frequency bands, generating a plurality of segments having a frequency domain and a time domain occupied by a predetermined number of sub-frequency bands and a predetermined number of time intervals, and classifying a plurality of segment types according to each of the segments, for data transmission, wherein the plurality of segment types comprise at least one realtime segment type and at least one non-realtime segment type; measuring a channel state and extracting channel state information corresponding to the channel state; estimating a segment type using the extracted channel state information, and determining whether there is a need for a change in a segment type currently allocated to the MS; if there is a need for a change in the segment type, transmitting a segment type change request message to the BS; and upon receiving a segment type change grant message from the BS in response to the segment type change request message, receiving data in a segment type corresponding to the received segment type change grant message.