Method and apparatus for combine selecting transmitting and receiving antennas

A technology of transmitting, receiving, and transmitting antennas, which is applied in the field of joint selection of transmitting and receiving antennas, and can solve the problem of high computational complexity of exhaustive search

Inactive Publication Date: 2008-09-03
SHANGHAI JIAO TONG UNIV +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0008] The purpose of the present invention is to provide a method and device for joint selection of transmitting and receiving antennas for the situation where there are multiple sets of optional antennas at both ends of the transmitting and receiving ends, and the computational complexity of exhaustive search is high

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  • Method and apparatus for combine selecting transmitting and receiving antennas
  • Method and apparatus for combine selecting transmitting and receiving antennas
  • Method and apparatus for combine selecting transmitting and receiving antennas

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Embodiment Construction

[0099] The embodiments of the present invention are described in detail below in conjunction with the accompanying drawings: this embodiment is implemented on the premise of the technical solution of the present invention, and detailed implementation methods and specific operating procedures are provided, but the protection scope of the present invention is not limited to the following the described embodiment.

[0100] figure 1 Schematic diagram of the proposed MIMO system with joint selection of transmit and receive antennas. At the transmitting end, after space-time processing, the input digital signal is converted into an analog signal by the radio frequency device and loaded on the transmitting antenna. At the receiving end, the signal received from the receiving antenna is re-converted into a digital signal by the radio frequency device, and the input data is estimated by the signal detection module and then output. Before data block transmission, the transmitting end ...

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Abstract

The invention relates to a combined selecting method and apparatus of transmitting and receiving antenna in wireless communication technique. The method comprises the steps that: step 1: a transmitting end transmits a training sequence, a receiving end carries out the channel estimate based on the received training sequence to obtain the MIMO channel transfers matrix; step 2: the receiving end uses a forward-inverse direction recursive method to perform the combined selecting of transmitting and receiving antenna; and step 3: the receiving end feeds back the transmitting antenna sequence number to the transmitting end by the mapping feedback or direct feedback. The apparatus includes a channel estimate unit, a transmitting and receiving antenna combined selecting unit, a feedback unit, which are used to perform the processes of the steps. The performance of the invention can approach to the high limit of the antenna selecting MIMO system, remarkably reduce the computing complexity as well as ensure the near-optimized channel capacity of the system, and has high application in MIMO system which has higher request of real time processing.

Description

technical field [0001] The invention relates to a method in the technical field of wireless communication, in particular to a method and device for joint selection of transmitting and receiving antennas, which are suitable for communication systems using MIMO (Multiple Input Multiple Output) technology. Background technique [0002] MIMO (Multi-in Multi-out) technology has been applied in more and more wired and wireless communication fields, mainly because MIMO technology has many advantages: providing high channel capacity, significantly reducing bit error rate, effectively resisting channel fading, etc. . At present, MIMO technology has been identified as EUTRA (Evolved Universal mobile telephony system Terrestrial Radio Access) and EUTRAN (Evolved Universal mobile telephony system Terrestrial Radio Access Network) (or It is called Super 3G: the preferred technology for uplink and downlink in Super Three Generation Mobile Communication System. However, in a MIMO system,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B7/06H04B7/08
Inventor 关韡罗汉文丁铭戴吉祥刘仁茂
Owner SHANGHAI JIAO TONG UNIV
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