H - Electricity – 04 – Q
Patent
H - Electricity
04
Q
H04Q 7/38 (2006.01) H04B 7/005 (2006.01)
Patent
CA 2147922
A transmission power control method in CDMA, which is capable of increasing the capacity in terms of the number of subscribes by reducing transmission power by achieving highly accurate transmission power control during a soft handoff. A mobile station determines its transmission power during the soft handoff by comparing a transmission power control bit from the old base station with that from a new base station, and by selecting the transmission power control bit that indicates lower transmission power of the mobile station. In addition, the mobile station determines the transmission power control bit for the base stations by comparing the received SIR from the old base station with that from the new base station, and by selecting the greater received SIR. This make it possible to reduce the transmission power, and increase the capacity in terms of the number of subscribers.
Dohi Tomohiro
Higashi Akihiro
Ohno Koji
Sawahashi Mamoru
Umeda Narumi
Blake Cassels & Graydon Llp
Ntt Mobile Communications Network Inc.
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