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Indoor distribution system MIMO single cable covering method and system

An indoor distribution system, single-cable technology, applied in diversity/multi-antenna systems, transmission systems, radio transmission systems, etc., can solve problems such as increasing the difficulty of property coordination and engineering renovation costs, two-way power imbalance, and reducing LTE MIMO performance. , to reduce the construction cost, reduce the amount of engineering transformation, and achieve the effect of high system reliability.

Inactive Publication Date: 2015-01-21
河南普世通信科技有限公司
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Problems solved by technology

The new antenna feeder system will greatly increase the difficulty of property coordination and the cost of engineering renovation. At the same time, due to the difference in construction time and antenna feeder materials of the new and old systems, it will inevitably lead to two-way power imbalance, thereby reducing LTE MIMO performance.

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  • Indoor distribution system MIMO single cable covering method and system
  • Indoor distribution system MIMO single cable covering method and system
  • Indoor distribution system MIMO single cable covering method and system

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Embodiment Construction

[0028] A kind of MIMO single-cable coverage method of indoor distribution system, it comprises the MIMO master machine that is positioned at signal source end and the MIMO slave machine that is positioned at antenna end; Wherein,

[0029] Such as figure 1 As shown, the single-cable transmission method of two downlink signals from the MIMO host to the MIMO slave includes the following steps: the MIMO host combines one of the two signals output by the LTE dual-channel radio remote unit RRU with the original distribution system signal, and the other One way of frequency conversion; after that, the two signals are recombined into a new signal and transmitted to the MIMO slave through the original indoor distribution system feeder; the MIMO slave separates the synthesized signal, separates the frequency-converted signal and restores its frequency, and uses a single polarization One channel of the antenna or dual-polarized antenna is transmitted, and the signal of the other channel ...

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Abstract

Provided is an indoor distribution system MIMO single cable covering method and system. An MIMO host machine enables one of the two paths of signals output by an LTE two-channel RRU to be combined with signals of an original distribution system, and the other path of signals to be subjected to frequency conversion; the two paths of signals are then combined into new signals which are then transmitted to an MIMO slave machine through a feeder line of the original distribution system; the MIMO slave machine enables the combined signals to be separated, and the signals which are subjected to frequency conversion are separated out and the frequency of the signals is reduced; and the signals are sent out by utilizing one path of single-polarized antenna or one path of a dual-polarized antenna, and the other path of signals are sent out by utilizing the other path of single-polarized antenna or the other path of the dual-polarized antenna, so that under the condition of not changing the structure of the original indoor distribution system, complete LTE MIMO characteristics are achieved. According to the technical scheme of the invention, with the indoor single cable covering method, the complete LTE MIMO characteristics are achieved without changing the structure of the original indoor distribution system, and engineering reconstruction amount and construction cost are effectively reduced.

Description

technical field [0001] The invention relates to an indoor distribution system, in particular to a single-cable coverage indoor distribution system based on MIMO technology. Background technique [0002] LTE mainly carries high-speed data services, and high-speed data services such as video telephony, high-definition video streaming, and large-scale interactive games generally occur in indoor environments. These service functions require large system capacity and good network quality. For operators, building a large number of indoor distribution systems can effectively absorb indoor services. The indoor distribution system can also solve the indoor coverage problem of high-end users in dense urban areas, effectively relieve the business pressure of outdoor macro stations, reduce the overall interference level of the network, improve the capacity of the entire system, and better meet the quality requirements of users. [0003] The indoor distribution system is the main way to...

Claims

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Application Information

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IPC IPC(8): H04W16/20H04B7/04
CPCH04W16/20H04B7/0413
Inventor 王志斌王坤洪小斌
Owner 河南普世通信科技有限公司
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