Transmission power control method and system

Details Transmission power control method and system Transmission power control method and system

2011-03-22

2011-03-22

Lee, John (Department: 2618)

Telecommunications

Transmitter and receiver at separate stations

Plural transmitters or receivers

C455S522000, C455S069000, C455S502000

Reexamination Certificate

active

07912493

ABSTRACT:
A transmission power control technique allowing stable and reliable signal transmission in soft handover is disclosed. Each of the base stations involved in soft handover measures an amount of loss of the base station selection signal. When the amount of loss of the base station selection signal exceeds a threshold, the transmission power of the downlink signal is not set to the minimum level but to the normally controlled level. Further, a transmission power update timing of each base station is determined so that the downlink signal received at the mobile station changes in transmission power at a predetermined timing synchronized with that of other base stations.

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patent: WO-98/59433 (1998-12-01), None
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Furukawa, H.; “Site Selection Transmit Power Control in DS-CDMA Down-Link”; Technical Report of The Institute of Electronics, Information and Communication Engineers, RCS97-218, Feb. 1998, pp. 40, 2nd Chapter. (in Japanese—see p. 2 of the specification, translation of abstract into English).

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