Method, device and system for line management
AssigneeHuawei Technologies Co., Ltd.
InventorsLiming Fang, Cheng Li
Life of this patent
Estimating the term…
Abstract
A method for line management includes: acquiring running parameters of a subscriber line; computing a transmitting power spectral density, PSD, and reference virtual noise of the subscriber line according to the running parameters; activating the subscriber line according to the transmitting PSD and the reference virtual noise. A device and system for line management are provided correspondingly. Reference virtual noise needed by virtual noise technology is set rationally according to the information provided by dynamic spectrum management, DSM, Level 2 algorithm. The utilization of the virtual noise technology improves the line stability under the DSM Level 2 algorithm, and has an effect of optimizing the subscriber line.
Claims8
A method for line management, comprising:
- acquiring running parameters of a subscriber line;
- computing a transmitting power spectral density, PSD, and reference virtual noise of the subscriber line according to the running parameters;
- and
- activating the subscriber line according to the transmitting PSD and the reference virtual noise;
- wherein the running parameters comprise a transfer function of a direct channel, a transfer function of a crosstalk channel, and a PSD of silent noise;
- wherein the computing the reference virtual noise of the subscriber line according to the running parameters comprises specifically:
- computing the transmitting PSD of the subscriber line according to the running parameters;
- and
- computing the reference virtual noise of the subscriber line according to the transmitting PSD, the PSD of silent noise, the transfer function of the direct channel, and the transfer function of the crosstalk channel.
A device for line management, comprising:
- a parameter acquiring unit, adapted to acquire running parameters of a subscriber line;
- a computing unit, adapted to compute a transmitting power spectral density, PSD, and reference virtual noise of the subscriber line according to the running parameters;
- and
- a line activating unit, adapted to activate the subscriber line according to the transmitting PSD and the reference virtual noise;
- wherein the running parameters comprise a transfer function of a direct channel, a transfer function of a crosstalk channel, and a PSD of silent noise;
- wherein the computing unit further comprises:
- a first computing unit, adapted to compute the transmitting PSD of the subscriber line according to the running parameters and a management target;
- a second computing unit, adapted to compute a receiving PSD of the subscriber line according to the transmitting PSD of the subscriber line and the transfer function of the direct channel;
- a third computing unit, adapted to compute overall interfered signals of the subscriber line according to the transmitting PSD of the subscriber line and the transfer function of the crosstalk channel;
- and
- a fourth computing unit, adapted to compute the reference virtual noise of the subscriber line according to the PSD of silent noise, the receiving PSD, and the overall interfered signals.
A system for line management, comprising:
- a line managing device, adapted to acquire running parameters of line terminals, wherein the running parameters comprise a transfer function of a direct channel, a transfer function of a crosstalk channel, and a PSD of silent noise, the line managing device further adapted to compute a transmitting PSD of a subscriber line according to the running parameters, compute a reference virtual noise of the subscriber line according to the transmitting PSD, the PSD of silent noise, the transfer function of the direct channel, and the transfer function of the crosstalk channel, and send the transmitting PSD and the reference virtual noise to the line terminals;
- and
- line terminals, adapted to send the running parameters to the line managing device, receive the transmitting PSD and the reference virtual noise sent by the line managing device, and activate the line according to the transmitting PSD and the reference virtual noise.
Dependencies are inferred from the claim text.