Multiplex communications – Communication over free space – Having a plurality of contiguous regions served by...
Reexamination Certificate
2001-09-12
2009-02-10
Backer, Firmin (Department: 2616)
Multiplex communications
Communication over free space
Having a plurality of contiguous regions served by...
C455S522000
Reexamination Certificate
active
07489663
ABSTRACT:
A control for varying a maximum transmission power of a transmitter according to a propagation loss or a distance between the transmitter and a receiver is made possible to reduce deterioration of a user capacity to a minimum. In a wave propagation loss measurement section, a calculation is performed on the basis of an amplification factor of a reception amplifier, amplitude information and a base station transmission power information of a reception baseband signal to calculate a wave propagation loss of a reception signal, thereby estimating a propagation loss of transmission signal. The wave propagation loss information is inputted to a maximum amplification amount designation circuit to decide a maximum amplification factor. The maximum amplification amount designation circuit adjusts a maximum transmission power of the transmission signal by designating the decided maximum amplification factor to a transmission amplifier.
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Higashi Akihiro
Ogawa Shinsuke
Okumura Yukihiko
Backer Firmin
Ng Christine
NTT DoCoMo
Workman Nydegger
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