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Technology Explained

 

Mobile and fixed wireless networks are built by distributing a number of radio base station sites over a coverage area, such as a city. Base station sites comprise various types of equipment, including the radio base station itself, cabling, power supplies, air conditioners, antennas, towers, transmission equipment, and more.

 

Traditional base station architecture

Traditional base station systems consist of one or more racks equipped with radio equipment. Base station sites often require large, sturdy shelters and strong structural support. Sites like this can be difficult to acquire and are costly to construct with prices sometimes extending into the hundreds of thousands of dollars. Traditional base stations also consume a large amount of energy. Many operators are still adopting this traditional architecture as the radio equipment is easily accessible from technical personnel for maintenance and service.

 

Distributed base station systems

Distributed base station systems are a new way of building mobile networks and offer a higher degree of flexibility. Instead of heavy rack units, a distributed base station consists of two compact parts: The base station server and the remote radio head. The connection between the two is achieved through optical links. Distributed base station systems have many advantages over traditional base station systems such as:

• Reduced CAPEX for building high density & high capacity mobile networks

• Reduced OPEX with lower site rental costs, reduced power consumption, and more flexibility in software configuration and management

• Support the Cloud Radio Access Network (C-RAN) Architecture

 

Cloud-RAN: The distributed RAN of the future

Cloud-RAN is the next generation in distributed radio access networks. In Cloud-RAN (or C-RAN) a number of remote radio heads are connected to a virtualized pool of baseband processing resources through high-capacity optical fibre links. MTI Mobile is strongly positioned to become a global enabler of Cloud-RAN technology with our OBSAI/CPRI intellectual property cores already being the industry de-facto standard for optical interfacing within the radio network subsystem.

MTI Mobile offers design and development of radio solutions for both traditional base station architectures and distributed base station systems to meet the varying demands of mobile broadband network suppliers and operators.