Digital microwave remote coverage system and method
A digital microwave and microwave technology, applied in electrical components, wireless communication, network planning, etc., can solve the problems of high cost, large processing delay and practical bandwidth, complex system, etc., to reduce complexity and cost, and achieve good market application prospects , the effect of strong anti-interference ability
Active Publication Date: 2013-11-06
COMBA TELECOM SYST CHINA LTD
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Problems solved by technology
[0011] The above-mentioned second type of digital microwave remote system uses direct digital sampling to obtain digital signals and transmits them through the digital microwave system. However, in this system, the data rate of direct sampling is very high, which leads to system processing delay and practicality. The bandwidth is very large, and the system is extremely complex and expensive. It requires DAU+IDU×2+ODU×2+DRU to form a coverage transmission system
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[0030] The present invention provides a digital microwave remote coverage system and method, which can solve the problems of weak anti-interference capability, high system complexity and cost, and large transmission bandwidth and transmission delay in the prior art microwave remote coverage system . Embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.
[0031] Such as image 3 As shown, the digital microwave radio frequency remote coverage method of the present invention includes a downlink transmission process and an uplink transmission process;
[0032] (1) The downlink transmission process specifically includes the following steps:
[0033] Step A, the digital microwave access unit receives the radio frequency signal of the base station, performs digital processing, modulates it into the microwave frequency band and sends it to the digital microwave coverage unit;
[0034] Step B, the digital microwave cove...
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The present invention provides a digital microwave -rising coverage system and method. The system includes: digital microwave access unit for receiving the radio frequency signal of the base station. After digital processingMicrowave signals are sent to the base station after microwave demodulation, digital processing and radio frequency signals; digital microwave coverage units are used to receive microwave signals, and microwave demodulation, digital processing and radio frequency signals are usedThe terminal of the terminal is used to digitize to the microwave frequency band and send it to the digital microwave access unit.The present invention uses digital treatment, which has renewable, no noise overlap, and strong anti -interference ability; and because the invention does not decod on the signal of the base station but does not decoding, it greatly reduces the transmission bandwidth and transmission delay. AlsoGreatly reduces the complexity and cost of the system.
Description
technical field [0001] The invention relates to mobile communication remote coverage technology, in particular to a digital microwave remote coverage system and method. Background technique [0002] At present, there are two main types of digital microwave radio remote coverage systems: [0003] The first is a frequency-shifting digital microwave remote coverage system. For example, an application document with the application number 200910037387.7 discloses a microwave remote wireless coverage system, such as figure 1 As shown, the system includes: [0004] It is used to receive the radio frequency signal of the base station and convert it into a microwave signal and send it out through the microwave transmission unit, and receive the microwave signal from the microwave transmission unit and convert it into a radio frequency signal and then transmit it to the base station; [0005] A microwave transmission unit for spatial transmission of microwave signals; [0006] The ...
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IPC IPC(8): H04W16/26
Inventor 靳宝
Owner COMBA TELECOM SYST CHINA LTD