Telecommunications – Transmitter and receiver at separate stations – Plural transmitters or receivers
Reexamination Certificate
2008-06-20
2011-11-01
Gesesse, Tilahun B (Department: 2618)
Telecommunications
Transmitter and receiver at separate stations
Plural transmitters or receivers
C455S069000, C455S127100, C455S562100
Reexamination Certificate
active
08050702
ABSTRACT:
To provide a mobile station and a transmission power control method in the mobile station, which are capable of improving the power saving characteristic associated with the transmission power control in the mobile station under a condition in which the transmit diversity is applied. The transmission power of feedback information (11: FBI) is controlled on the basis of control information (TPC) transmitted through a sub-information downlink channel (21) from a base station (210) as a main branch, only when it is determined by a communication method determining section103that a cosed loop transmit diversity can be applied (step S201: Yes), and when it is determined by a communication base station determining section104that sub-information downlink channels (21, 22) and sub-information uplink channels (11, 12) are connected to a plurality of base stations (step S202: Yes).
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Iizuka Yousuke
Okumura Yukihiko
Crowell & Moring LLP
Gesesse Tilahun B
NTT DoCoMo Inc.
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