Enhanced dynamic service gateway (EDSG) independently identifies a channel of user traffic and implements independent rate limit, accounting, and management for the traffic.
In the early broadband development, most carriers use the extensive operation mode to increase the number of users. In this mode, carriers continuously expand networks and publicize high bandwidth to attract users. With the development of broadband network operation environments, the traditional operation mode creates the following challenges:
How to increase the input-output ratio?
Growing bandwidth demands drive carriers to increase investment in the infrastructure. The investment continuously increases, but the revenue increases slowly. As a result, the input-output ratio decreases.
How to ensure a local carrier's revenues?
In a region where a toll network and a local network are separately deployed, the local carrier must rent the toll network carrier's expensive egress link for connecting to the Internet and pay the toll network carrier for expensive Internet traffic. Internet traffic and intranet traffic have large cost differences. The local carrier's revenues increase slowly because Internet traffic and intranet traffic cannot be distinguished and accounting cannot be performed for them based on different tariff levels.
How to meet customers' refined operation requirements?
Carriers need to provide differentiated accounting for traffic to different service servers. For example, carriers need to use different tariffs to perform accounting for the traffic, such as Internet data center (IDC), local IPTV, and local gaming website traffic.
How to meet different customers' requirements?
Carriers need to control the bandwidth when users access the local service networks or the Internet to provide differentiated services based on the service bandwidth and to identify high-end, mid-range, and low-end users to prevent a few low-end users from using too much bandwidth.
How to resolve benefit allocation issues when traffic is transmitted through networks of different network service providers (NSPs)?
Some carriers use the ISP service wholesale mode. Different tariffs are provided for national and international ISP traffic. Benefit allocation issues must be resolved if traffic is transmitted through different NSPs' networks.
To address these challenges, EDSG is introduced. EDSG is characterized by flexible service extension and dynamic deployment and applies when large numbers of users use various service combinations.
EDSG offers the following benefits to carriers:
Carriers can provide a combination of EDSG services or a self-service page for users to select services on demand, improving user experience and increasing revenues. A self-service page may also be provided by service providers that cooperate with carriers.