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Method and system for selecting and transmitting self-adaptive wave velocity in related multi-input multi-output system

An adaptive transmission and adaptive beam technology, applied in the field of adaptive beam selection and transmission, can solve the problems of system feedback overhead and intolerable implementation complexity.

Inactive Publication Date: 2007-09-19
PANASONIC CORP
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Problems solved by technology

Although this method can improve the performance under correlated MIMO to a certain extent, it needs to perform feedback and SVD on the channel characteristic matrix H at every moment in the actual MIMO system. Therefore, it is difficult in terms of system feedback overhead and implementation complexity. tolerant

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  • Method and system for selecting and transmitting self-adaptive wave velocity in related multi-input multi-output system
  • Method and system for selecting and transmitting self-adaptive wave velocity in related multi-input multi-output system
  • Method and system for selecting and transmitting self-adaptive wave velocity in related multi-input multi-output system

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Embodiment Construction

[0034] Embodiments of the present invention will be described in detail below with reference to the accompanying drawings, and unnecessary details and functions for the present invention will be omitted during the description to prevent confusion in the understanding of the present invention.

[0035] Specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. In the present invention, the sending end may be, for example, a base station in a wireless communication system, and the receiving end may be, for example, a mobile terminal such as a mobile station, a portable computer, or a personal digital assistant (PDA) in a wireless communication system.

[0036] Fig. 3 is a schematic structural diagram of a MIMO system using adaptive transmission according to an embodiment of the present invention. The configuration of the adaptive beam selection and transmission system in the relevant MIMO system according to the...

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Abstract

The invention discloses a self-adaptive beam selection and transmission method in the relative MIMO system. In the method, according to the second order characteristics statistical of the signal channel in the relative MIMO system, a receiver determines to send beam set and feed backs it to an inchoation. At each moment of transmission, according to current signal channel characteristics, the receiver chooses some beams form the beam set as sending beam which is used at present, at the same time, determines the power and bit allocation of each beam, and feedbacks the result to a sender. According to the result feed backed by the receiver, the sender chooses the corresponding beam from the sending beam set, and carries out the corresponding power and bit allocation, and then sends out. In the method, self-adaptive transmission method which is based on the beam selection, beam power and bit allocation is used, and multiplexing signal correlation is removed, at the same time, the transmission performance of MIMO system is improved.

Description

technical field [0001] The present invention relates to an adaptive transmission method and system in a space-correlated multi-antenna multiple-input multiple-output (MIMO) system, in particular, to a method capable of selecting a corresponding beam from a set of transmitting beams according to the receiving characteristics fed back by the receiving end, and performing corresponding Adaptive beam selection and transmission methods and systems for power and bit allocation to transmit data. Background technique [0002] With the gradual integration of wireless networks and the Internet, people have higher and higher requirements for the type and quality of wireless communication services, as well as higher requirements for information transmission rates. How to improve the information transmission rate is one of the main problems faced by the future wireless communication system. In order to achieve this goal on limited spectrum resources, multi-antenna multiple-input multipl...

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Application Information

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IPC IPC(8): H04L1/00H04L1/06H04B7/04
Inventor 佘小明李继峰
Owner PANASONIC CORP
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