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| 1 | 2 | 3 | a premium “business class” service which prioritizes packets for those users, effectively providing a “better best effort” service.
Wireless networks provide this consolidation at the cellsite, where a limited resource of radio transmission capacity in any given cell must be shared out equitably to all the users in its coverage area.
Typically, the radio access network will accommodate short bursts of peak rate traffic from individual users, cutting back on the throughput to discourage continuous high load within the individual cellsite. Unlike the wireline network, the radio access network doesn’t have individual subscriber or tariff information and can’t prioritise based on individual user plans.
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Real-time packet processing has advanced to the point where each and every packet can be inspected, classified and prioritized in real-time. |
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to take account not just of the radio capacity for the cell providing coverage, but also the available backhaul transmission shared across the site.
Centrally, using Deep Packet Inspection
Real-time packet processing has advanced to the point where each and every packet can be inspected, classified and prioritised in real-time based on the subscriber’s profile. Several
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Moving the bottlenecks affects the planning processes
Unlike wireline broadband, until recently this “last mile” of radio access has been the limiting factor of bandwidth, with backhaul from the cellsite to core network matching the full capacity of the cellsite. With the latest 3.5G cellsites, this is no longer the case. There are many instances where the peak RF throughput exceeds that of the backhaul links.
This has changed the role of backhaul transmission planning for mobile network operators, who are investing heavily in transforming these links to Carrier Ethernet using both wireless microwave and fibre ethernet technology. Where before, the radio transmission capacity drove the planning and forecasting for the transmission network, now we are seeing a separate stream of capacity planning around the backhaul transmission itself.
Access control to the radio network at the point of delivery (the cellsite), therefore has
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vendors provide the technology to do this, handling both prepaid and postpaid data traffic in the same system. By associating each data stream with a Class of Service, and individual parameters such as monthly usage to date, traffic shaping can be applied to the real-time stream. Each type of service, whether email, web browsing or video streaming, can be treated differently to optimise the end user experience.
Introducing a premium service class
Up to now, many wireline but few mobile service providers have introduced a premium or better class of service for data users on their networks. By doing so, they can offer the opportunity to increase revenues from the same available capacity, rationing it out proportionally to those prepared to pay for it.
Standards and products already exist to manage the data traffic both in aggregate and at individual subscriber level. For mobile networks, these can include in-application
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