Ericsson's IP Base Station System smoothly transitions current wireless access networks into the demanding world of wireless IP communications.
Ericsson's system offers operators substantial cost savings - through a more than 40 percent more effective use of the transport capacity in the wireless access network.
Ericsson's new system is a first important step to an all-IP wireless network. It enables operators to upgrade or build their networks to more efficiently handle the huge traffic increase expected in tomorrow's mobile networks. The system also offers - for the first time - an IP-based solution for wireless access networks with ensured quality of service for voice and other realtime sensitive services.
Ericsson's IP Base Station System (IP-BSS) is being demonstrated for the first time, this week live at an exhibition in Cannes.
A smooth transition
For operators, Ericsson's new IP-BSS offers a smooth transition from current infrastructure to an all-IP wireless access network - while reusing installed equipment.
Optimized to efficiently fuse emerging wireless packet-based datacom services with today's circuit-switched services, the IP-BSS is built on
open and scalable network platforms. Its layered architecture is future-proof for the mobile Internet and aligned with evolution of IP in 3G
(third generation). Ericsson's system is easily introduced into existing GSM and TDMA networks in an evolutionary approach to 3G.
Priority of realtime services
The IP-BSS incorporates a realtime wireless optimized implementation of the Differentiated Services (DiffServ) standard to classify and prioritize traffic. This emerging standard is especially well suited to the
characteristics of wireless access networks, where traffic is well defined and known.
The prioritization of traffic in Ericsson's IP-BSS makes it possible - in an industry-first - for GSM base stations to deliver delay sensitive
services, like voice and video conferencing, over IP. 'Best effort' data is also efficiently handled, which means that operators can fully realize the benefits of a packet-based wireless access network.
With Ericsson's IP-BSS, data traffic can be run as low priority traffic within the BSS network, together with high priority services such as
voice. This leads to increased flexibility in the dimensioning of the network and significant transmission savings compared to current circuit-
switched solutions, where bandwidth is peak allocated.
The new Ericsson Realtime Router RXI 820 for wireless networks is an important enabler of IP in the IP-BSS. The router is based on the same
platform as the Ericsson Media Gateway for WCDMA third generation networks. This platform offers a common packet-switched core that efficiently handles both IP and ATM traffic.
The RXI 820 is specifically designed for the demanding requirements of wireless networks, like need for efficient handling of small delay-
sensitive packets over low bandwidth, error-prone links. This Ericsson realtime router technology is implemented in all routers of the IP-BSS
solution allowing realtime services to be handled in the BSS without loss of quality of service.
The IP-BSS system also includes a BSS Gateway, which interconnects the IP-BSS to the core network and performs required signaling and media gateway functions.
Live demo in Cannes
During a live demonstration of the IP-BSS, visitors to the Ericsson stand at the GSM World Congress in Cannes France, could try out the new system first-hand.
Data traffic in the form of graphic illustrations was being sent at a steady rate from Sweden to the Ericsson stand in Cannes. To illustrate the
IP-BSS traffic prioritization (DiffServ) feature, visitors at the stand were invited to make realtime GSM phone calls over the same wireless
access links. They could then observe how the rate of transmission of the graphic illustrations slowed slightly, at the same time as they experienced no delay in the voice quality of their mobile phone call.
Cost savings for operators
Today a major cost for an operator in running a mobile network is in transporting traffic in the wireless access networks. Transporting traffic
in backbone networks constitutes a smaller cost.
With the new IP-BSS, operators can more effectively transport traffic in
their wireless access networks. Ericsson estimates that operators could thus gain substantial cost savings through a more than 40 percent more effective use of the transport capacity in the wireless access network.
The exact amount of savings will vary, depending on an operator's specific network configuration and traffic mix.
With its new layered architecture, the system introduces a Radio Network Server. This enables operators to also offer shorter time to market for
services, as well as the means for optimizing network resources.
Ericsson's IP-BSS marks an important step forward in the transition to all-IP based wireless networks. IP-based networks can offer operators,
faced with a new traffic mix, significant advantages - simplicity and reduced operating costs, more efficient utilization of network resources, and new revenue opportunities through enhanced service offerings to theirusers.
Ericsson is the leading provider in the new telecoms world, with communications solutions that combine telecom and datacom technologies with freedom of mobility for the user. With more than 100,000 employees in
140 countries, Ericsson simplifies communications for its customers -network operators, service providers, enterprises and consumers - the world over.