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Device and method for diversity reception and transmission of TD-SCDMA mobile communication systems

A technology of TD-SCDMA and mobile communication systems, applied in the direction of space transmit diversity, diversity/multi-antenna systems, etc., can solve the problems of signal delay and phase difference, poor correlation, low user density, etc., and achieve competitive and low cost Reduced effect

Active Publication Date: 2009-06-03
成都芯通软件有限公司
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  • Abstract
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Problems solved by technology

[0003] The purpose of the present invention is to propose a third-generation mobile communication TD-SCDMA system, a TD-SCDMA mobile communication system diversity receiving and transmitting device and method using space diversity in a wireless base station, to solve the problem of two antennas and their connection The radio frequency transceiver constitutes two problems with poor correlation; solve the key problems such as completely unrelated transceiver links and the signals received by the two links from the user terminal are different in delay and phase; Solve the problem of low user density and large coverage radius in rural areas and urban outer suburbs

Method used

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  • Device and method for diversity reception and transmission of TD-SCDMA mobile communication systems
  • Device and method for diversity reception and transmission of TD-SCDMA mobile communication systems

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Embodiment Construction

[0014] The device of the present invention uses two antennas and radio frequency receivers respectively connected to the antennas to realize receiving diversity, and the device also uses the above two antennas and radio frequency transmitters respectively connected to the antennas to realize transmitting diversity. The device of the present invention can be used figure 2 The wireless base station in will be described in detail. This TD-SCDMA base station 200 with diversity function will connect two antennas: main antenna 201 and diversity antenna 202, they connect the TD-SCDMA radio frequency receiver 211 of main path and transmitter 212 and the TD-SCDMA radio frequency receiving of diversity path respectively machine 213 and transmitter 214. Both the above-mentioned main antenna 201 and diversity antenna 202 may be a single antenna, or may be an antenna array composed of multiple antennas. The TD-SCDMA radio frequency receiver 211 and the transmitter 212 of the above-menti...

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Abstract

The invention discloses a device and a method for diversity reception and transmission of TD-SCDMA mobile communication systems in a wireless base station which uses two antennas and an RF transceiver connected. The installation space of the antennas is at least dozens of working wavelengths. The invention solves the problems of poor relativity formed by the antennas and the RF transceiver connected, difference of time delay and phase of signals received by 2 completely irrelevant links of a transceiving link and a user terminal. The invention solves the problem of low user density of rural and suburban districts which need big area coverage radius. The cost of each base station may be reduced by more than 20%.

Description

technical field [0001] The present invention is a technology for diversity reception and transmission when the TD-SCDMA mobile communication system of the third generation of mobile communication is used in outdoor macro cell coverage, and especially relates to a device and method for using diversity reception and transmission in a TD-SCDMA mobile communication system . Background technique [0002] When the third-generation TD-SCDMA mobile communication system is used in outdoor macro cell coverage, the wireless base station equipment designed and manufactured by various equipment manufacturers currently uses smart antennas composed of 6 to 8 units. In field use, the user raised problems such as large antenna size and difficult engineering installation. As we all know, the TD-SCDMA system uses smart antenna technology to achieve the result that all code channels can provide services, which is the advantage of smart antennas. The use of smart antennas can increase system c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B7/08H04B7/06
Inventor 李睿罗先俊
Owner 成都芯通软件有限公司
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