td-scdma base station used in cable tunnel

A TD-SCDMA, cable tunnel technology, applied in the field of base station equipment, to reduce the impact, reduce bit errors, and overcome the problem of signal attenuation

Active Publication Date: 2017-01-04
STATE GRID CORP OF CHINA +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

After field testing, it can well solve the problem of long-distance transmission and adapt to work normally in special environments such as cable tunnels

Method used

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  • td-scdma base station used in cable tunnel
  • td-scdma base station used in cable tunnel
  • td-scdma base station used in cable tunnel

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] The composition of the original TD-SCDMA base station is as follows: figure 2 shown. The TD-SCDMA base station mainly implements the debugging and demodulation of electrical signals and the reception / transmission of wireless signals. The electrical signal sent from the ground device 4 is transmitted to the TD-SCDMA base station through the cable, and then transmitted to the modulation and demodulation module 2 through the internal transceiver interface module 3. The reference clock provided by the clock module is used for frequency modulation to generate a high-frequency signal and amplifies it. Finally, when the electronic switch 1 is in the transmitting mode, it is converted into a wireless signal through the antenna and transmitted. The transceiver interface module 3 is mainly composed of a transceiver circuit composed of a filter and an operational amplifier, so as to correctly receive the analog signal in the cable or convert the internal electrical signal into a...

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Abstract

The invention relates to base station equipment, in particular to base station equipment capable of working normally in a cable tunnel environment and supplying TD-SCDMA wireless communication network signal covering for the environment where the base station equipment is located. A TD-SCDMA base station applied to the cable tunnel is composed of an electronic switch (1), a modulation-demodulation module (2), a digital-to-analog conversion module (7), a receiving and sending interface module (3), a single-chip microcomputer (6) and a clock module (5). According to the TD-SCDMA base station applied to the cable tunnel, original simulation electric signals transmitted through cables are converted into high-frequency digital electric signals, so that the signals can be transmitted in optical fibers conveniently. In a long distance using environment like the cable tunnel, the signal attenuation problem caused by traditional communication cables can be solved, the reliability of transmission is improved, better anti-electromagnetic interference capacity is provided, and effective covering of the TD-SCDMA wireless communication network signal same as a ground environment can be provided stably.

Description

technical field [0001] The invention relates to a base station device, in particular to a base station device which can work normally in a cable tunnel environment and provide TD-SCDMA wireless communication network signal coverage for the environment. Background technique [0002] Base stations and ground equipment need transmission lines to communicate with each other, usually using communication cables. Although the communication cable has a shielding effect, the cable tunnel is a long-distance application environment. If the communication cable is too long, the electrical signal to be transmitted will be attenuated too much and the reception will be wrong, which limits the use of the base station in the cable tunnel. In addition, the longer the required communication cable distance, the more construction and installation workload, and the higher the maintenance cost. [0003] TD-SCDMA base stations need to communicate with ground equipment to form a wireless communicati...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W88/08H04B10/2575
Inventor 白晗张劲松邹明贺李林
Owner STATE GRID CORP OF CHINA
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