Pulse or digital communications – Receivers – Particular pulse demodulator or detector
Reexamination Certificate
2007-12-11
2007-12-11
Trinh, Sonny (Department: 2618)
Pulse or digital communications
Receivers
Particular pulse demodulator or detector
C375S295000, C375S260000, C455S065000
Reexamination Certificate
active
10564089
ABSTRACT:
A wireless transmission apparatus that can accurately select an optimal modulation scheme on a per block basis in a multi-carrier communication system in which block division of subcarriers and adaptive modulation are performed. In this wireless transmission apparatus, a propagation path characteristics acquisition section (107) acquires the average SNR and SNR dispersion for each block, which are estimated by a wireless reception apparatus (200), using received signals inputted from a reception RF section (106) and outputs these to an assignment section (108), the assignment section (108) selects a modulation scheme for each block based on the average SNR and SNR dispersion of each block inputted from the propagation path characteristics acquisition section (107), and modulation sections (101-1, 101-2, . . . , 101-L) modulate multi-carrier signals included in each block, with the modulation scheme for each block selected by the assignment section (108).
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Cheng Jun
Miyoshi Ken'ichi
Matsushita Electrical Industrial Co. Ltd.
Stevens Davis Miller & Mosher LLP
Trinh Sonny
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