METHOD FOR ALLOCATION OF SAFETY CHANNEL IN COMMUNICATION SYSTEM USING ORTHOGONAL FREQUENCY DIVISION MULTIPLE ACCESS SCHEME

摘要

The present invention relates to a method for implementing an orthogonal frequency division multiple access scheme stable channel (Safety Channel) can be applied to a downlink FUSC and an uplink PUSC in the communication system using the structure, and this, the present invention uses a stable channel Once the terminal to occur, the serving cell and neighboring cells is the end of generating the FUSC sub-channels having sub-carriers, such as, using the same cell identifier value, the configuration of the FUSC sub-channel using a reliable channel from the base station of the serving cell number of terminals and determining a part number of channels for reliable channel based on the frequency usage state, etc. of the current cell, schedule, and the required stable channel for the sub-channel of the number determined by the desired terminal a stable channel to and a step of re-numbering the index of sub-carriers of the remaining sub-channels, excluding the stable channel after the assignment, then the numbering performed, the serving cell and the adjacent cells involved in a stable channel is re-numbered using the own cell identifier using the sub-carriers comprising the steps of: configuring the FUSC sub-channel, assigning a channel to a stable terminal of the desired channel, and otherwise generally stable terminal, it characterized in that it comprises the step consisting of assigning the subchannels. With this structure, the present invention can provide a reliable service to the terminal at the boundary of the cell and reduce the interference between cells. ; 4G, OFDMA, stable channel (Safety Channel), FUSC