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Method, system and apparatus for MIMO transmission of multi transmitting antennas

A transmitting antenna and multi-transmission technology, applied in the field of mobile communication, can solve the problems of inability to support precoded MIMO, complicated implementation, lack of flexibility in MIMO transmission, etc., and achieve the effect of simple implementation, high flexibility, and various conversion methods

Inactive Publication Date: 2010-08-25
LIANYUNGANG RES INST NANJING UNIV OF SCI & TECH
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  • Claims
  • Application Information

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Problems solved by technology

Since the obtained SNR gain is higher than that of a dual-transmit antenna array structure when using a multi-transmit antenna array structure with more than dual transmit antennas, there are proposals in the prior art to use a MIMO structure with multiple transmit antenna arrays in HSDPA , such as: 4 transmit antennas and dual receive antenna structure, that is, 4×2 precoded MIMO, and a new precoded matrix is ​​proposed to realize 4×2 precoded MIMO, but at this time it is necessary to modify the HS-SCCH and HS -The signaling structure in the DPCCH is used to carry the control information of 4×2 precoded MIMO, and the new precoding matrix can only support 4×2 precoded MIMO, and cannot support 3×2 and n×2 (n> 4) Precoded MIMO
It can be seen that the MIMO transmission with multiple transmit antennas proposed in the prior art lacks flexibility and is complicated to implement

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  • Method, system and apparatus for MIMO transmission of multi transmitting antennas
  • Method, system and apparatus for MIMO transmission of multi transmitting antennas
  • Method, system and apparatus for MIMO transmission of multi transmitting antennas

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Abstract

The invention discloses a multi-input multi-output (MIMO) transmission method for a multi-transmitting antenna system, and the method consists of a transmitting method and a receiving method, wherein, the transmitting method comprises the following steps: two signals formed by weighting a pre-coding are converted into M transmitting signals which are transmitted out by M transmitting antennas after being added with a pilot frequency respectively. In addition, the invention also discloses a multi-transmitting antenna MIMO transmission system and the device thereof. The invention can simplify the implementation process of a MIMO transmission in a multi-transmitting antenna system and improve the flexibility.

Description

technical field The present invention relates to mobile communication technology, in particular to a multiple-input multiple-output (MIMO) transmission method, system and device with multiple transmitting antennas. Background technique In the mobile communication system, the high-speed downlink packet access (HSDPA) technology is key because of its adaptive modulation and coding (AMC), hybrid automatic repeat request (HARQ), and fast packet scheduling (FPS) of the base station node (Node B). technology, which realizes high-speed data transmission on the downlink, and thus has been widely used. In HSDPA technology, a high-speed downlink shared channel (HS-DSCH) that can be switched between users at an interval of 2 ms can be provided. In order to realize HS-DSCH transmission, HSDPA introduces three new physical channels, namely the high-speed physical downlink shared channel ( HS-PDSCH), High Speed ​​Shared Control Channel (HS-SCCH) and High Speed ​​Dedicated Physical Contr...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L27/26H04B7/02H04L1/00
Inventor 刘晟
Owner LIANYUNGANG RES INST NANJING UNIV OF SCI & TECH