Requirements: 4G signal coverage of China Unicom and China Telecom
KFC Restaurant (CaiDe Town) is located on the first floor of Caide Town, CaiTian Road, Futian District, Shenzhen. The location of a KFC restaurant is usually in the center of various business districts, where are usually covered by great signal of the three major signal operators.
After the site survey, we found the signal of China Mobile is very good, and no need to consider China Mobile signal. However, 4G signal of China Unicom and China Telecom are weak on the checkout counter, kitchen, corner, and office. The reason is that China Mobile had signal coverage inside of the building. Therefore, people could only receive China Unicom and China Telecom signal from outdoor base station. What’s more, as there is a building in the front of KFC restaurant, it’s normal to have weak signal of China Unicom and China Telecom in KFC restaurant.
To solved the mentioned weak signal problem, we only need to aim at the exact signal frequencies and make signal coverage at the following positions.
Signal survey result as follows,
According to the above signal data, we could tell that China Mobile had a great signal distribution inside, but China Unicom and China Telecom not. Therefore, we need to transmit the outdoor signal of China Unicom and China Telecom to indoor, then amplify it.
Scheme Design
According to the signal demands and the site survey, we use a high-power repeater with six indoor antenna to amplify signal in the checkout counter, kitchen, corner, and office. Topology picture as follows,
Wiring and construction
Considering the clients flows and business time of KFC restaurant, the construction time was arranged to avoid the rush hour, and the whole construction is noiseless and dust free. Besides, the construction of kitchen was arranged after 21:30.
Except the indoor antenna in lobby, all the other antennas are installed into the ceiling without any exposure. Also, the outdoor antenna was installed below of the signboard, where won’t be look strangely.
Effect Test
After signals are amplified, the signal strength is tested as follows,
Except no change on China Mobile signal, there are a great improvement of China Unicom and China Telecom signal. Especially the delivery clerks could have a better experience to receive takeout order and arrange delivery. The signal coverage offers a better signal experience for client and KFC staff.
Summary
As KFC restaurant is usually covered by great signal of the three major signal operators, the signal problems are more likely that some frequencies are not covered. Therefore, an accurate site survey are necessary, then we could use a suitable repeater with correct frequency to amplify the specific signal to meet the demands of signal coverage.
Besides, as it’s a KFC restaurant, we have to consider the construction time when it won’t affect the business with easiest construction method.
