Indoor distribution system and its implementation method for the fusion of catv and multiple wireless communication systems

Abstract

An indoor distribution system for the fusion of CATV and multiple wireless communication systems and its implementation method, including a near-end unit receiving CATV signals and radio frequency signals from multiple sources including TD-LTE MIMO signals, and combining and filtering multiple signals , After frequency conversion processing, it is transmitted through the CATV line; the remote machine receives the CATV signal and a variety of wireless communication signals including TD-LTE MIMO signals through the CATV line, separates them and performs filtering, power detection, amplification, and LTE on each signal MIMO signals are adjusted for power balance and evenly transmitted to each access node. Through the method of the present invention, it is guaranteed that the coverage of each network signal is basically consistent, so that each access node wireless signal is covered by the antenna, and the TD-LTE MIMO signal is respectively covered by multiple antennas; the CATV signal is output to the set-top box through the remote machine, and finally It realizes high-quality non-interference wireless network coverage and TV function in the access node. At the same time, CATV signals are transmitted to the TV through cables, and TV programs can be watched normally.

Description

technical field [0001] The invention relates to mobile communication technology, in particular to an indoor distribution system and its realization method in which CATV and multiple wireless communication systems are integrated. Background technique [0002] For mobile communication networks, especially 4G networks and 3G networks, indoor coverage is a very important component. According to statistics, about 70% of services are performed indoors, and with the gradual increase of data service applications, the proportion of indoor services is still increasing. For Time-Division Long-Term Evolution (TD-LTE) networks, the performance of the indoor distribution system will greatly affect the experience of customers and the revenue of operators. [0003] In the 2G / 3G era, a large number of indoor distributed antenna systems (DAS) have been built, and TD-LTE indoor coverage can be quickly realized based on DAS. At present, "baseband processing unit (BBU) + remote radio unit (RRU)...

AI Technical Summary

Problems solved by technology

However, as mentioned above, the "BBU+RRU+Distributed Antenna System" solution cannot introduce signals into large residential areas, high-rise residences, hotels, large dormitory areas and other building rooms, but can only be laid in public areas such as corridors and corridors

Due to the barrier of the wall inside the room, the coverage effect is not good. However, due to the technical characteristics of TD-LTE, the space and the wall have a greater transmission loss to it. If the signal cannot be introduced into the room, the communication effect will be even worse, which seriously affects the communication quality, reducing user satisfaction

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