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Perform upstream symbol alignment under fext

A technology of symbol pairing and execution time, which is applied in the field of network communication and can solve problems such as difficulty in symbol positioning

Active Publication Date: 2017-04-19
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Unfortunately, symbol location can be relatively more difficult in the upstream direction than in the downstream direction, since the TU-Rs are generally located at different locations

Method used

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  • Perform upstream symbol alignment under fext
  • Perform upstream symbol alignment under fext
  • Perform upstream symbol alignment under fext

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Embodiment Construction

[0023] It should be understood at the outset that, although an illustrative implementation of one or more embodiments is provided below, the disclosed systems and / or methods may be implemented using any number of techniques, whether currently known or in existence. The invention should in no way be limited to the illustrative implementations, drawings, and techniques illustrated below, including the exemplary designs and implementations illustrated and described herein, but rather be within the scope of the appended claims and their equivalents Modified within the full range of .

[0024]Depending on the standards supported, a DSL system may be denoted as an xDSL system, where 'x' may indicate any DSL standard. For example, 'x' represents 'A' in ADSL2 or ADSL2+ system, 'V' in VDSL or VDSL2 system, and 'F' in G.fast system. When the transceiver unit is located at the operator end of the DSL system, including a CO, DSLAM, cabinet or DPU, the transceiver unit may be called xTU-O...

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PUM

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Abstract

A method for implementing upstream symbol alignment within a network component, the method comprising: receiving an upstream synchronization signal from a customer premises equipment (CPE) by initializing a digital subscriber line (DSL) during a channel discovery phase; based on the upstream synchronization signaling a corrected upstream symbol alignment value; and transmitting the corrected upstream symbol alignment value to the CPE, wherein the upstream symbol alignment value determines an upstream symbol alignment for one or more upstream transmissions, and wherein the channel The corrected uplink symbol alignment value is determined prior to receiving a plurality of uplink data signals within the data symbol positions during a discovery phase.

Description

[0001] Related Applications Cross Application [0002] The present invention requires U.S. Provisional Patent No. 61 / 811,334 filed on April 12, 2013 by Haixiang Liang et al. entitled "Upstream Symbol Alignment Procedure Under Strong FEXT" application, and claims the 14th patent of the invention titled "Performing Upstream Symbol Alignment Under FEXT" filed by Haixiang Liang et al. on April 10, 2014 / 249,750, the contents of which are both incorporated herein by reference as if reproduced in their entirety. technical field [0003] The present invention relates to the field of network communications and, in particular embodiments, to performing upstream symbol alignment under FEXT. Background technique [0004] Digital Subscriber Line (DSL) technology provides greater bandwidth for digital communications over existing subscriber lines (eg, copper wires). For the transmission of data signals, many current DSL systems including Asymmetric DSL 2 (ADSL2), ADSL2+, Very High Spee...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B3/32H04M11/06
CPCH04B3/32H04B3/487H04L5/1469H04L27/2655H04M3/34H04M11/062H04W56/001H04L27/2601H04L12/2898H04N21/4302H04Q11/0478
Inventor 梁海祥刘义贤
Owner HUAWEI TECH CO LTD