Direct transmitting station for synchronous CDMA system and its control

A synchronous code division multiple access and communication system technology, which is applied to the repeater of the synchronous code division multiple access mobile communication system and its control field, and can solve the problem that the time division synchronous code division multiple access system cannot be applied to the working frequency band of the repeater.

Inactive Publication Date: 2003-11-19
BEIJING XINWEI TELECOM TECH
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

Therefore, none of the existing working frequency bands of repeaters can be applied in the TDSCDMA system, and the TDSCDMA technology works around 1800MHZ

Method used

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  • Direct transmitting station for synchronous CDMA system and its control
  • Direct transmitting station for synchronous CDMA system and its control
  • Direct transmitting station for synchronous CDMA system and its control

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Embodiment Construction

[0024] Generally speaking, the repeater mainly solves the problem of blind spots in the coverage of the mobile communication system, including tall buildings, dense buildings, underground buildings, complex terrain areas, etc., and can also be used as a relay function to increase coverage. The main functions of the repeater station include completing the frequency conversion and forwarding function of the wireless signal between the base station and the terminal, realizing automatic power control, and realizing remote centralized monitoring and real-time monitoring.

[0025] Time division synchronous code division multiple access communication repeater belongs to a wireless radio frequency (RF, Radio Frequency) method, which amplifies the signals between the uplink (mobile station to base station) and downlink (base station to mobile station) separately to expand the coverage. And transmit to the other party's mobile communication repeater.

[0026] In Fig. 2, the internal str...

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Abstract

The invention discloses passing through stations in SCDMA mobile communication system and its controlling method in order to complete frequency translating transpondering function so as to solve the issue of covering blind zone for base stations in SCDMA system. The passing through station in SCDMA mobile communication includes a casing one interface for input power source, two radio frequency modules, one control module including a handset board, a digital signal processor, a field programmable gate array, a D/A and A/D converter. The controlling method of the passing through station is to control the operation of the radio frequency circuit in TDD mode controlled by DSP and FPGA.

Description

technical field [0001] The invention relates to a repeater of a communication system and a control method thereof, in particular to a repeater for a synchronous code division multiple access mobile communication system and a control method thereof. Background technique [0002] In the field of mobile communication, Time Division Synchronous Code Division Multiple Access (TSCDMA) technology combines TDD (Time Division Duplex, Time Division Multiplexing), smart antenna, synchronous CDMA, software radio and other advanced technologies, and has become a third-generation international mobile communication standard. When using the time division synchronous code division multiple access system for networking, you will also encounter the problem of coverage blind spots, because in the process of signal propagation, you often encounter obstacles, such as buildings, mountains, various complex terrains, etc. On the back of obstacles and inside various underground buildings, such as und...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B7/14H04J13/02H04W16/00H04W88/08
Inventor 吕建峰陈肇雄袁进李日光林波
Owner BEIJING XINWEI TELECOM TECH
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