A leading mobile services provider in Mainland China, NSN (Nokia Solutions and Networks), is now deploying 4G/LTE technology. NSN uses LISCA cable assemblies from HUBER+SUHNER for the mobile communications antennas. To upgrade mobile communications to 4G LTE, HUBER+SUHNER delivered radio frequency jumper cables equipped with QN connectors to NSN. The jumper cable connects the antennas to the remote radio units. Each remote radio unit, fitted with nine QN female connectors requires nine jumper cables. HUBER+SUHNER has also designed this QN female interface on remote radio units too. According to the requirements of the customer, on one side of the jumper cable is a QN male connector and on the other an N male connector.
The cable assemblies were produced at HUBER+SUHNER’s production site in Shanghai and were tested for passive intermodulation and attenuation - jumper cables should have low passive intermodulation and low attenuation. The short timeframe for these important tests was one of the challenges with which HUBER+SUHNER was faced, and was achieved successfully. Crucial to the successful completion of the tests and the selection of HUBER+SUHNER as one of the suppliers were both the excellent teamwork of the team in China and good co-operation with NSN. HUBER+SUHNER also provided good service and support during the project.
LISCA cable assemblies are specially developed for applications where low attenuation combined with low intermodulation products are required. This is achieved by utilizing corrugated cables with low intermodulation connectors and a controlled assembly process. However, HUBER+SUHNER is not only providing radio frequency, but also fiber optic solutions for the cell sites and wireless access market.
