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Method and device for resource optimization of broadband wireless access system

An access system, broadband wireless technology, applied in wireless communication, power management, electrical components and other directions, can solve problems such as low system spectral efficiency

Inactive Publication Date: 2010-03-03
ZTE CORP
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  • Abstract
  • Description
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Problems solved by technology

[0007] The technical problem to be solved by the present invention is to propose a method and device for resource optimization of a broadband wireless access system, to solve the problem of low spectrum efficiency in the current system, and to improve data transmission Link reliability, and reducing computational complexity to achieve resource optimization and realizability

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  • Method and device for resource optimization of broadband wireless access system
  • Method and device for resource optimization of broadband wireless access system
  • Method and device for resource optimization of broadband wireless access system

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Embodiment Construction

[0046] In the present invention, a low-complexity power allocation scheme based on carrier to interference and noise ratio (CINR) and eigenmodes is adopted, and accurate channel information is obtained from the receiving unit and applied to the sending unit.

[0047]The base station calculates the characteristic value of the channel between the terminal and the terminal by receiving the data sent by the terminal, and allocates the power of each data stream sent to the terminal according to the limitation of system power and the characteristic value of the channel.

[0048] Preferably, the base station calculates the eigenvalue of the channel between the terminal and the terminal, specifically: by estimating the carrier-to-noise ratio of the channel, using the channel estimation result to form a covariance matrix and iterating through the singular value decomposition method to obtain the eigenvalue of the channel .

[0049] Preferably, the base station allocates the power of ea...

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Abstract

The invention discloses a method and a device for resource optimization of a broadband wireless access system. The method comprises the following steps: a base station receives data transmitted by a terminal and calculates the characteristic values of a channel between the base station and the terminal; and the base station transmits the power of each data flow to the terminal according to the limitation of system power and the allocation of the characteristic value of the channel. The method and the device can reduce the complexity of the algorithm, optimize the resource allocation, improve the system throughput and enhance the reliability of the transmission data link.

Description

technical field [0001] The invention relates to the field of mobile communication, in particular to a method and device for resource optimization of a broadband wireless access system. Background technique [0002] In recent years, the third and fourth generation (3G / 4G) wireless mobile network communications have achieved rapid development and geometric-level user growth, which poses great challenges to the optimal resource allocation and interference elimination technology of the system, especially It is aimed at increasing system throughput and improving signal and data transmission reliability. The performance of mobile communication systems is usually affected by multipath fading, which degrades performance and limits capacity. [0003] Multiple Input Multiple Output (MIMO) antenna technology and iterative antenna (adaptive antenna system, AAS) technology, as the most promising technologies in 4G mobile communication systems, have been widely used in wireless mobile ne...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W52/22H04W52/24H04W52/26
Inventor 尹武
Owner ZTE CORP
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