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Upstream pre-coding method based on rotary codebook for fixed electric power communication terminal

A power communication and precoding technology, applied in electrical components, digital transmission systems, error prevention and other directions, can solve problems such as the inability to meet the data transmission requirements of power systems, and achieve the effect of improving the uplink communication rate

Inactive Publication Date: 2015-06-24
INFORMATION & COMM BRANCH OF STATE GRID JIANGSU ELECTRIC POWER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In real systems, considering the overhead of the system, the traditional codebook precoding technology is usually used, which cannot meet the data transmission requirements of the power system.

Method used

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  • Upstream pre-coding method based on rotary codebook for fixed electric power communication terminal
  • Upstream pre-coding method based on rotary codebook for fixed electric power communication terminal
  • Upstream pre-coding method based on rotary codebook for fixed electric power communication terminal

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Embodiment Construction

[0017] A rotating codebook-based uplink precoding method for a fixed power communication terminal of the present invention comprises the following steps:

[0018] Step 1. Create K different but equivalent size 2 at the transmitter and receiver at the same time L Codebook collection, and arrange them, where K, L are natural numbers; create K different but equivalent size is 2 L The order of the codebook collection is:

[0019] . . . , F 0 L , F 1 L , F 2 L , . . . , F K - 1 L , F 0 L , F 1 L , F ...

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Abstract

The invention discloses an upstream pre-coding method based on a rotary codebook for a fixed electric power communication terminal. The upstream pre-coding method based on the rotary codebook for the fixed electric power communication terminal mainly comprises the four steps that first, a plurality of different but equivalent codebook sets are established simultaneously at a transmitting end and a receiving end and arrayed; next, channel estimation is performed at the receiving end according to a descending pilot signal; then, an optimal codebook is screened out from 2 <l> codebook sets by using a channel state at the receiving end, and the serial number of the optimal codebook is fed back to the transmitting end; finally, the transmitting end uses the serial number of the optimal codebook fed back by the receiving end to find the corresponding codebook, the codebook is used to perform pre-processing on sending data, and the data after the pre-processing are sent. The upstream pre-coding method based on the rotary codebook for the fixed electric power communication terminal adopts a plurality of the codebooks, default serial numbers are introduced, the capacity of the codebook can be virtually improved, and meanwhile the communication speed of the electric power terminal can also be increased.

Description

technical field [0001] The invention belongs to the field of power system communication, in particular to an uplink precoding method based on a rotating codebook for a fixed power communication terminal. Background technique [0002] With the development of smart grid construction, the demand for reliability and security of electric power business continues to increase, and the construction of electric power wireless private network has received more and more attention. Smart grid power distribution business terminals are widely spread and scattered. Although the optical fiber communication method has the advantage of strong business transmission capabilities, deployment and construction are difficult and costly, and cannot meet the full coverage of massive power distribution terminals. With the rapid development of wireless broadband communication technology, as a supplementary means of power cable optical fiber communication, the ability of wireless communication to suppor...

Claims

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Application Information

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IPC IPC(8): H04L1/00
Inventor 蒋承伶郭波江淞贾平王韬邹骏
Owner INFORMATION & COMM BRANCH OF STATE GRID JIANGSU ELECTRIC POWER