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A method for common transfer of multiple pairs and transmission terminal and receiving terminal

It is a technology of receiving end and sending end, which is applied in the direction of line transmission parts, transmission system, digital transmission system, etc. It can solve the problems of not being able to carry bits, dissatisfaction, waste of channel resources, etc., to achieve performance improvement, lengthen signal transmission distance, The effect of increasing the transmission rate

Inactive Publication Date: 2008-01-16
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the signal-to-noise ratio between 203 and 204 is greater than zero, it cannot be used to carry data, which is a great waste. Therefore, MIMO technology does not give full play to the advantages of multi-pair joint processing.
[0023] In addition, depending on the actual application environment, the noise of each pair of lines and the attenuation of the channel are also different. As shown in Figure 7, only the signal-to-noise ratio of four pairs of different lines--frequency characteristic diagrams are listed here. The 8 frequency bands (from 801 to 808) cannot carry a unit of bits. The signal-to-noise ratios corresponding to these frequency bands are all less than 0dB, which does not meet the conditions for carrying data in the modulation technology, so these frequency bands are also not used. use, wasting channel resources

Method used

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  • A method for common transfer of multiple pairs and transmission terminal and receiving terminal
  • A method for common transfer of multiple pairs and transmission terminal and receiving terminal
  • A method for common transfer of multiple pairs and transmission terminal and receiving terminal

Examples

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Embodiment 1

[0075] According to the signal-to-noise ratio of each pair of lines, the frequency segment corresponding to the signal-to-noise ratio greater than or equal to 3dB is regarded as the frequency segment that meets the carrying condition, and the frequency segment corresponding to the signal-to-noise ratio less than 3dB is regarded as the frequency segment that does not meet the carrying condition, and the The sent information is divided into N+M (M is greater than or equal to 1) parts, wherein, the N parts of the sent information are respectively carried by frequency segments that meet the carrying conditions of N pairs of lines, that is, the N parts of the sent information are respectively carried by N pairs of lines Transmission, using the existing MIMO working method, and the remaining M parts of the transmission information are repeatedly carried by at least two frequency segments that do not meet the carrying conditions, that is, any part of the M parts of the transmission inf...

Embodiment 2

[0088] The principle schematic diagram of the sending end and the receiving end of this embodiment is shown in FIG. 13 .

[0089] The transmitting end includes a modulator group consisting of four modulators, a transmitter group consisting of four transmitters, an encoder group consisting of ten encoders and a selection combiner group, wherein the selection combiner The group includes a selector and a combiner group consisting of four combiners; the ten output terminals of the encoder group are respectively connected to the ten input terminals of the selector, and the four output terminals of the selector are respectively connected to the four combiner The input terminals are connected, the output terminals of the four combiners are respectively connected with the input terminals of the four modulators, and the output terminals of the four modulators are respectively connected with the input terminals of the four transmitters.

[0090]First, the encoder group encodes the trans...

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PUM

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Abstract

The invention discloses a multi-paired line co-transportation method and a delivering end and a receiving end. A multi-paired line co-transportation method, wherein N pairs are set as N greater than or equal to 2, includes that the delivering end divides the data to be delivered into N+M parts to encode respectively, then N+M encoded signals are obtain to be modulated respectively, and the modulated signals are delivered to the receiving end via N-paired lines, wherein M is larger than or equal to 1; the receiving end demodulates and decodes the received signals to recover the delivered data. The delivering end comprises a modulator set and a deliver set, and also comprises a encoder set and a selecting combiner set. The receiving end comprises a modem set and a receiver set, and also comprises a decoder set and a deselecting combiner set. The invention increases the combined transportation capacity of multi-paired lines.

Description

[technical field] [0001] The invention relates to the field of communication technology, in particular to a method for common transmission of multiple pairs of wires, a sending end and a receiving end. [Background technique] [0002] Digital Subscriber Line (Digital Subscriber Line, DSL) technology is a high-speed transmission technology for data transmission through telephone twisted pair, ie, Unshielded Twist Pair (Unshielded Twist Pair, UTP). DSL includes Asymmetrical Digital Subscriber Line (ADSL), Very-high-bit-rate Digital Subscriber Line (VDSL), and users based on Integrated Services Digital Network (ISDN) Digital Subscriber Line (ISDN Digital Subscriber Line, IDSL) and Single-pair High-bit-rate Digital Subscriber Line (Single-pair High-bit-rate Digital Subscriber Line, SHDSL), etc. [0003] Among various digital subscriber line technologies (xDSL), in addition to DSL with baseband transmission such as IDSL and SHDSL, DSL with passband transmission uses frequency div...

Claims

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Application Information

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IPC IPC(8): H04J15/00H04L27/00H04J99/00
CPCH04L5/0044H04Q2213/1329H04Q2213/13399H04Q2213/13389H04L5/20H04B3/32H04L5/0023H04L2012/5618H04L12/5601H04L2012/5665H04L12/2881H04L12/4633H04Q2213/13204H04Q11/0428H04L5/006H04M11/062H04Q2213/13196
Inventor 石清泉
Owner HUAWEI TECH CO LTD
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