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 requiring good quality and ordinary transmit data other than said high-quality transmit data;
a subcarrier allocation section that rearranges said high-quality transmit data and said ordinary transmit data such that said high-quality transmit data is allocated to subcarriers in a vicinity of a center frequency in a predetermined frequency domain and said ordinary transmit data is allocated to subcarriers in a vicinity of both ends in the predetermined frequency domain, and that varies in accordance with channel quality a range of subcarriers to which said high-quality transmit data is allocated and a range of subcarriers to which said ordinary transmit data is allocated; and
an orthogonal frequency division multiplexing section that performs orthogonal frequency division multiplexing of said high-quality transmit data and said ordinary transmit data rearranged by said subcarrier allocating section.
6 Assignments
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Accused Products
Abstract
A multicarrier transmitting apparatus includes a dividing section that divides transmit data into high-quality transmit data requiring good quality and ordinary transmit data other than the high-quality transmit data. A subcarrier allocation section rearranges the high-quality transmit data and the ordinary transmit data such that the high-quality transmit data is allocated to subcarriers in the vicinity of a center frequency in a predetermined frequency domain and the ordinary transmit data is allocated to subcarriers in the vicinity of both ends in the predetermined frequency domain. The subcarrier allocation section varies, in accordance with channel quality, a range of subcarrier to which the high-quality transmit data and ordinary transmit data are allocated. An orthogonal frequency division multiplexing section performs orthogonal frequency division multiplexing of the high-quality transmit data and the ordinary transmit data rearranged by said subcarrier allocating section.
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Citations
9 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 requiring good quality and ordinary transmit data other than said high-quality transmit data; a subcarrier allocation section that rearranges said high-quality transmit data and said ordinary transmit data such that said high-quality transmit data is allocated to subcarriers in a vicinity of a center frequency in a predetermined frequency domain and said ordinary transmit data is allocated to subcarriers in a vicinity of both ends in the predetermined frequency domain, and that varies in accordance with channel quality a range of subcarriers to which said high-quality transmit data is allocated and a range of subcarriers to which said ordinary transmit data is allocated; and an orthogonal frequency division multiplexing section that performs orthogonal frequency division multiplexing of said high-quality transmit data and said ordinary transmit data rearranged by said subcarrier allocating section. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A multicarrier transmitting method comprising the steps of:
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in a multicarrier transmitting apparatus, dividing transmit data into high-quality transmit data requiring good quality and ordinary transmit data other than said high-quality transmit data; in said multicarrier transmitting apparatus, rearranging said high-quality transmit data and said ordinary transmit data such that said high-quality transmit data is allocated to subcarriers in a vicinity of a center frequency in a predetermined frequency domain and said ordinary transmit data is allocated to subcarriers in a vicinity of both ends in the predetermined frequency domain, and varying in accordance with channel quality a range of subcarriers to which said high-quality transmit data is allocated and a range of subcarriers to which said ordinary transmit data is allocated; and in said multicarrier transmitting apparatus, performing orthogonal frequency division multiplexing of said rearranged high-quality transmit data and said ordinary transmit data.
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Specification