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Novel wireless communication networking method based on the relay technology

A technology of wireless communication and technology, applied in radio relay system, radio/induction link selection arrangement, diversity/multi-antenna system, etc. The effect of improving signal quality and reducing interference

Inactive Publication Date: 2007-07-11
BEIJING UNIV OF POSTS & TELECOMM
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  • Summary
  • Abstract
  • Description
  • Claims
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Problems solved by technology

However, at present, all relay-related technologies are still focused on the amplification and forwarding of relay data, without expanding the relay technology, let alone making full use of the characteristics of the relay technology to enhance the network structure and hope framework; how to use Relay station technology improves the performance of existing networks, especially the performance of wireless access systems that are very sensitive to inter-cell interference, which is still blank

Method used

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  • Novel wireless communication networking method based on the relay technology
  • Novel wireless communication networking method based on the relay technology

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Embodiment Construction

[0053] Figure 1 shows the spectral efficiency of the system at different distances from the base station when different cellular structures are used. The relay structure here refers to placing a relay station in the middle of the coverage area, the height of the relay station is half the height of the base station, and a multi-antenna configuration is adopted at the relay point. In the figure, it is assumed that the radius of the cell is 4 km, and the spectral efficiency is compared between the traditional cellular structure and the relay network structure. It can be seen from the figure that after adopting the relay technology, the spectrum efficiency of the system is obviously improved, especially the use of MIMO at the relay station can significantly improve the network performance.

[0054] Figure 2 compares the performance results of relay diversity gain when using a single antenna and using a 2×2 MIMO antenna. It can be seen from the figure that the spectral efficiency ...

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Abstract

This invention relates to one new wireless communication network form method based on relay technique, which lowers the base station requires through setting relay station and expends its coverage range to reduce near station interference and provides sparse gains to make the next generation of wide band near one and to simplify the next generation of network design to improve system frequency spectrum rate. The technique is characterized by the following: a, relay points adopt antenna; b, in coverage range, relay point fulfills range coverage function; c, in bad area of signal quality the relay point provides one sparse gains function.

Description

technical field [0001] The invention belongs to the field of wireless communication, and is not only suitable for traditional cellular mobile communication systems, but also for various wireless broadband access systems, such as wireless local area networks, wireless metropolitan area networks, etc., and is also suitable for heterogeneous wireless access systems. Access network convergence also has a wide range of applications. The present invention mainly focuses on the elaboration of the downlink information processing, but for the uplink, a similar method can be used. Background technique [0002] The traditional cellular mobile communication system adopts the cellular structure, but the fourth-generation (4G) wireless communication system with ultra-high data rate still adopts the traditional cellular structure, and there will be many problems. The main reasons are: first, the transmission rate of the 4G system is higher than that of Third generation (3G) systems are tw...

Claims

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Application Information

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IPC IPC(8): H04B7/14H04B7/02H04Q7/22H04L12/28
Inventor 彭木根王文博
Owner BEIJING UNIV OF POSTS & TELECOMM
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