Method for detecting cable connection of intelligent antenna outdoor unit

An outdoor unit and smart antenna technology, applied in diversity/multi-antenna systems, space transmit diversity, etc., can solve the problems of difficult control of accuracy, affecting the speed of base station construction, affecting the performance and gain of smart antenna systems, etc.

Inactive Publication Date: 2008-04-02
ZTE CORP
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Problems solved by technology

Since the smart antenna array generally adopts a multi-antenna system, during the construction process of connecting with the outdoor RF front-end unit, there are often cases where the connection sequence is wrong, which will greatly affect the perform

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  • Method for detecting cable connection of intelligent antenna outdoor unit
  • Method for detecting cable connection of intelligent antenna outdoor unit
  • Method for detecting cable connection of intelligent antenna outdoor unit

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Embodiment Construction

[0042] Specific embodiments of the present invention will be described in more detail below in conjunction with the accompanying drawings.

[0043] Referring to accompanying drawings 1 and 2, they are schematic diagrams of arrangement modes of outdoor unit antenna arrays of smart antennas: circular array and linear array respectively.

[0044] The method for detecting the connection sequence of the radio frequency coaxial cable between the smart antenna array and the outdoor radio frequency front-end unit according to the present invention respectively processes the data after collecting the uplink channel at the base station end and performs smooth correlation, and constructs user antenna weight coefficient traversal Matrix, beam space search for the maximum value of the corresponding arrangement, detection of the maximum value corresponding to the angle to eliminate special angle set data, search for the maximum power of all arrangements to obtain the precise arrangement posi...

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Abstract

The present invention discloses a method for detecting the cable connecting of the outdoor unit of the intelligent antenna, which settles the problem that the connecting sequence can not be detected when the intelligent antenna array is connected with the front unit of the outdoor radio frequency by a radio frequency coaxial cable in the TD-SCDMA communication system. The invention presents a method for confirming the connecting sequence of the corresponding cable according to the estimated data of the communication channel, changing the complexor sequence in the antenna array direction, searching the maximum value of the energy in the air space, and the antennae array direction complexor sequence which corresponds with the maximum value. The present invention effectively settles the problem of detecting the connecting sequence of the of the radio frequency cable in the realizing of the intelligent antenna project; the detecting sequence of the present cable can be accurately detected while the upgoing communication channel is adopted to process the data according to the criterion that the space detecting receiving power is maximum traversing all the cables at the condition that the calculating difficulty is effectively controlled; the smooth arithmetic is adapted for the originality, the noise and disturbance are sieved and the correctness of the detecting arithmetic is increased.

Description

technical field [0001] The invention relates to a method for detecting the cable connection of an outdoor unit of an intelligent antenna in a wireless communication system, in particular to a method for detecting the connection of a cable adopted by an outdoor unit of an intelligent antenna in a synchronous Code Division Multiple Access (CDMA) communication system. Background technique [0002] Using the spatial characteristics of signal transmission and digital signal processing technology, smart antennas can realize the estimation of uplink angle of arrival (DOA) and downlink beamforming, so as to reduce interference, increase capacity, expand coverage, improve communication quality, and reduce emission. Power and the purpose of increasing the wireless data transmission rate. [0003] Under the condition of a certain user moving speed, for a synchronous CDMA communication system using time division duplex (TDD), the upper and lower channels meet the symmetrical requirement...

Claims

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Application Information

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IPC IPC(8): H04B7/04
Inventor 曾召华李斌
Owner ZTE CORP
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