XDSL system and signal transmission method, sending device, and receiving device of xDSL system
AssigneeHuawei Technologies Co., Ltd.
InventorsLiming Fang, Jie Lv, Huishen Dong
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Abstract
An xDSL signal transmission method includes: receiving 2N−1 signals from 2N−1 signal input ends, where each signal in the 2N−1 signals is a signal transmitted by an independent channel in the xDSL system; pre-multiplying a (2N−1)×1 matrix formed by the 2N−1 signals by a first conversion matrix to obtain a 2N×1 matrix, where elements in the 2N×1 matrix respectively correspond to 2N signals, and the first conversion matrix is a 2N×(2N−1) matrix; and sending the 2N signals via N twisted pair lines respectively. The N twisted pair lines can transmit signals of 2N−1 channels, thereby increasing the number of signal transmissions, and improving signal transmission efficiency.
Claims12
A signal transmission method in an xDSL system, comprising:
- receiving 2N−1 signals from 2N−1 signal input ends, wherein each signal in the 2N−1 signals is a signal transmitted by an independent channel in the xDSL system;
- and
- pre-multiplying a (2N−1)×1 matrix formed by the 2N−1 signals by a first conversion matrix to obtain a 2N×1 matrix, wherein elements in the 2N×1 matrix respectively correspond to 2N signals, and the first conversion matrix is a 2N×(2N−1) matrix;
- and
- sending the 2N signals via N twisted pair lines respectively, wherein N is a natural number greater than 1.
A signal transmission method in an xDSL system, comprising:
- receiving 2N signals via 2N signal receiving ends respectively connected with N twisted pair lines;
- and
- pre-multiplying a 2N×1 matrix formed by the 2N signals by a first conversion matrix to obtain a (2N−1)×1 matrix, wherein elements in the (2N−1)×1 matrix respectively correspond to 2N−1 signals, the first conversion matrix is a (2N−1)×2N matrix, each signal in the 2N−1 signals is a signal transmitted by an independent channel in the xDSL system, and N is a natural number greater than 1.
A signal sending device in an xDSL system, comprising:
- 2N−1 signal input ends, respectively configured to receive a signal transmitted by an independent channel in the xDSL system;
- a first conversion module, configured to pre-multiply a (2N−1)×1 matrix formed by 2N−1 signals by a first conversion matrix to obtain a 2N×1 matrix, wherein elements in the 2N×1 matrix respectively correspond to 2N signals, and the first conversion matrix is a 2N×(2N−1) matrix;
- and
- 2N signal sending ends, respectively connected with a conducting wire in N twisted pair lines, and configured to send each of the 2N signals obtained by the first conversion module via a conducting wire in N twisted pair lines, wherein N is a natural number greater than 1.
A signal receiving device in an xDSL system, comprising:
- 2N signal receiving ends, respectively connected with a conducting wire in N twisted pair lines, and configured to receive 2N signals;
- and
- a first conversion module, configured to pre-multiply a 2N×1 matrix formed by the 2N signals by a second conversion matrix to obtain a (2N−1)×1 matrix, wherein elements in the (2N−1)×1 matrix respectively correspond to 2N−1 signals, the second conversion matrix is a (2N−1)×2N matrix, each signal in the 2N−1 signals is a signal transmitted by an independent channel in the xDSL system, and N is a natural number greater than 1.
An xDSL signal transmission system, comprising N twisted pair lines, a signal sending device and a signal receiving device;
- the signal sending device comprising:
- 2N−1 signal input ends, respectively configured to receive a signal transmitted by an independent channel;
- a first conversion module, configured to pre-multiply a (2N−1)×1 matrix formed by 2N−1 signals by a first conversion matrix to obtain a 2N×1 matrix, wherein elements in the 2N×1 matrix respectively correspond to 2N signals, and the first conversion matrix is a 2N×(2N−1) matrix;
- and
- 2N signal sending ends, respectively connected with a conducting wire in the N twisted pair lines, and configured to send each of the 2N signals obtained by the first conversion module via a conducting wire in the N twisted pair lines, wherein N is a natural number greater than 1;
- and the signal receiving device comprising:
- 2N signal receiving ends, respectively connected with a conducting wire in the N twisted pair lines, and configured to receive 2N signals;
- and
- a second conversion module, configured to pre-multiply a 2N×1 matrix formed by the 2N signals by a third conversion matrix to obtain a (2N−1)×1 matrix, wherein elements in the (2N−1)×1 matrix respectively correspond to 2N−1 signals, the third conversion matrix is a (2N−1)×2N matrix, each signal in the 2N−1 signals is a signal transmitted by an independent channel in the xDSL system, and N is a natural number greater than 1;
- wherein 2N signal sending ends of the signal sending device are respectively connected with a conducting wire of the N twisted pair lines, and 2N signal receiving ends of the signal receiving device are respectively connected with a conducting wire of the N twisted pair lines.
Dependencies are inferred from the claim text.