Radio spectrum management apparatus for base stations

Details Radio spectrum management apparatus for base stations Radio spectrum management apparatus for base stations

2006-07-11

2006-07-11

Kizou, Hassan (Department: 2616)

Multiplex communications

Communication over free space

Having a plurality of contiguous regions served by...

C370S458000, C455S450000, C455S522000

Reexamination Certificate

active

07075909

ABSTRACT:
An access control unit3includes a table showing how time slots are currently being assigned to mobile stations that are mid-communication. The access control unit3judges whether the reception signal level measured by the reception level detection unit22for each mobile station is at least equal to a threshold value. The access control unit3then changes the assignment and the table so that the mobile stations having a reception level that is at least equal to the threshold value occupy the same time slot. The access control unit3reduces the transmission power during this time slot to a level that is lower than the transmission power of other time slots. By doing so, interference with the transmission waves of nearby radio base stations can be avoided.

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Indoor SDMA capacity using a smart antenna base station Shad, F.; Todd, T.D.; Kezys, V.; Litva, J.; Universal Personal Communications Record, 1997. Conference Record., 1997 IEEE 6th International Conference on vol. 2, Oct. 12-16, 1997 pp. 868-872.

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