| 摘要 |
PROBLEM TO BE SOLVED: To maximize the number of users simultaneously connected in a cellular system. SOLUTION: Assuming that each terminal has an SINR equivalent to a required transmission quality for all combinations of antenna beams of base stations, simultaneous equations having variables of antenna beam and transmission power selected for each base station are established to find a transmission power for each base station. When the solutions of the equations fail to meet restriction requirements of the base station power, the above operation is repeated by sequentially reducing the number of terminals to determine an antenna beam combination and a base station transmission power for the largest number of users simultaneously connected. In order to reduce the quantity of calculation, multiple antenna beams having strong signal intensities at the terminals may be extracted and the other antenna beams having weak signal intensities may be excluded from the search targets. COPYRIGHT: (C)2010,JPO&INPIT
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