Multi-carrier transmitting apparatus and multi-carrier transmitting method
First Claim
1. A multicarrier transmitting apparatus comprising:
- a dividing section that divides transmit data into high-quality transmit data for which good quality is required and ordinary transmit data other than said high-quality transmit data;
a rearranging section that rearranges said transmit data so that said high-quality transmit data is allocated to a subcarrier in the vicinity of a center frequency; and
an orthogonal frequency division multiplexing section that performs orthogonal frequency division multiplexing of said transmit data rearranged by said rearranging section and allocates said transmit data to subcarriers.
6 Assignments
0 Petitions
Accused Products
Abstract
A coding section 101 turbo-codes transmit data and outputs parity bit data, and systematic bit data for which good quality is required. A modulation section 102 modulates the parity bit data and systematic bit data. A subcarrier allocation section 103 rearranges the transmit data so that systematic bit data is allocated to subcarriers in the vicinity of the center frequency and parity bit data is allocated to subcarriers in the vicinity of both ends. An OFDM section 104 performs orthogonal frequency division multiplexing of the transmit data, and allocates parity bit data and systematic bit data to respective subcarriers. By this means, it is possible to improve significantly the error rate characteristics of transmit data for which good quality is required, and prevent degradation of the quality of transmit data for which good quality is required.
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Citations
37 Claims
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1. A multicarrier transmitting apparatus comprising:
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a dividing section that divides transmit data into high-quality transmit data for which good quality is required and ordinary transmit data other than said high-quality transmit data;
a rearranging section that rearranges said transmit data so that said high-quality transmit data is allocated to a subcarrier in the vicinity of a center frequency; and
an orthogonal frequency division multiplexing section that performs orthogonal frequency division multiplexing of said transmit data rearranged by said rearranging section and allocates said transmit data to subcarriers. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28)
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29. A base station apparatus that has a multicarrier transmitting apparatus comprising:
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a dividing section that divides transmit data into high-quality transmit data for which good quality is required and ordinary transmit data other than said high-quality transmit data;
a rearranging section that rearranges said transmit data so that said high-quality transmit data is allocated to a subcarrier in the vicinity of a center frequency; and
an orthogonal frequency division multiplexing section that performs orthogonal frequency division multiplexing of said transmit data rearranged by said rearranging section and allocates said transmit data to subcarriers.
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30. A communication terminal apparatus that has a multicarrier transmitting apparatus comprising:
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a dividing section that divides transmit data into high-quality transmit data for which good quality is required and ordinary transmit data other than said high-quality transmit data;
a rearranging section that rearranges said transmit data so that said high-quality transmit data is allocated to a subcarrier in the vicinity of a center frequency; and
an orthogonal frequency division multiplexing section that performs orthogonal frequency division multiplexing of said transmit data rearranged by said rearranging section and allocates said transmit data to subcarriers.
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31. A multicarrier transmitting method comprising:
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a step of dividing transmit data into high-quality transmit data for which good quality is required and ordinary transmit data other than said high-quality transmit data;
a step of rearranging said transmit data so that said high-quality transmit data is allocated to a subcarrier in the vicinity of a center frequency; and
a step of performing orthogonal frequency division multiplexing of rearranged said transmit data and allocating said transmit data to subcarriers. - View Dependent Claims (32, 33, 34, 35, 36, 37)
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Specification