System and method for detecting antenna port configuration information

A technology for antenna ports and configuration information, applied in diversity/multi-antenna systems, wireless communications, transmission systems, etc., can solve problems such as new requirements

Inactive Publication Date: 2013-03-20
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, there is currently no effective solution for this new requirement

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  • System and method for detecting antenna port configuration information
  • System and method for detecting antenna port configuration information
  • System and method for detecting antenna port configuration information

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Experimental program
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Embodiment Construction

[0030] The core idea of ​​the present invention is: based on the characteristics of the configuration method of PBCH mapping to RE, since the RE location of the reference signal is corresponding to the antenna port configuration information that PBCH is transmitted by several antenna ports, the PBCH is mapped to In the position of the RE, the position of the RE of the reference signal is the cut-in point, and the detection of the configuration information of the antenna port can be completed.

[0031] The implementation of the technical solution will be further described in detail below in conjunction with the accompanying drawings.

[0032] Currently, figure 1 , figure 2 or image 3They are respectively: a schematic diagram of RE mapping when one, two or four ports transmit PBCH in an LTE system in FDD mode. Among them, the part filled with dense dots represents the RE mapped to the service signal; the part filled with vertical and horizontal lines represents the RE mappe...

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Abstract

The invention discloses a system for detecting antenna port configuration information. The system comprises a determining unit, a presetting unit, an extracting unit and a detection implementing unit,wherein the detection implementing unit is used for determining three reference signal sequence copies corresponding to the same local extracting position during mapping at local four antenna ports,and correlating three receiving sequence corresponding to the same extracting position and the corresponding three reference signal sequence copies to implement the detection of the antenna port configuration information. The invention also discloses a method for detecting the antenna port configuration information. The method comprises that the detection implementing unit correlates the three receiving sequence corresponding to the same extracting position and the corresponding three reference signal sequence copies to implement the detection of the antenna port configuration information. Byadopting the system and the method, a user terminal can learn the antenna port configuration information before reading a broadcast channel so as to normally demodulate the broadcast channel.

Description

technical field [0001] The invention relates to a detection technology of antenna port configuration information, in particular to a detection system and method for antenna port configuration information in the initial search process of a long-term evolution (LTE) system cell. Background technique [0002] After the user terminal (UE) establishes time-frequency synchronization with the cell during the initial cell search process, it needs to read the broadcast channel (PBCH) to obtain more information about the cell, such as downlink system bandwidth. In the LTE system, PBCH supports two transmission modes: single-antenna port transmission mode and diversity transmission mode. In diversity transmission mode, it supports two-antenna port transmission and four-antenna port transmission. That is to say, PBCH can transmit through single, two or four antenna ports emission. [0003] To sum up, since the PBCH in the LTE system supports multi-antenna port transmission, it cannot d...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L1/06H04B7/06H04B17/00H04W24/00
Inventor 盛渊
Owner ZTE CORP
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