Indoor capacity increase: large building coverage solutions

In wireless network coverage, indoor coverage has been difficult. With the construction of the city's modernization, China's super-large buildings, more and more complex environment of the scene, the capacity demand, to the indoor scenario planning has added a new urgent problems.

Zhejiang Yiwu China Small Mall is one of the largest small commodities export base, with a business area of more than 4 million square meters, by the International Trade City, Huangyuan market, Binwang market cluster composed of three markets, business-bit 62000, employing more than 200,000 and daily traffic of more than 200,000 people, is an international small commodities, information and exhibition center. Datang Mobile provide a new solution for indoor coverage and obtain good results.

Solution

Indoor SDMA

A number of floors is configured to the same cell. Innovative use of the space division multiplexing (SDMA) technology into coverage programs, access to multi-user spatial multiplexing effect, multiplied to enhance cell’s capacity.

Antenna rehabilitation

For indoor coverage areas overlap with the frequency of cell, by using the directional antenna can cover a certain extent, reduce the co-channel interference, improve handover performance.

Indoor joint Detection with the same frequency

By introducing multi-cell joint detection scheme, to a certain extent, reduce the system uplink co-channel interference, improve the capacity.

Typical application

Large scale building coverage solutions used in Yiwu City, Zhejiang Province, effective control of the interference, improved indoor coverage, improve the system capacity, the test results can be seen is very obvious.