Wi-Fi eXchange

Stoke Wi-Fi eXchange is a gateway application that automatically authenticates Wi-Fi attached subscribers and securely links them to their 3G or LTE cellular network services and/or to the Internet. Wi-Fi eXchange enables operators to maximize the benefits of service provider Wi-Fi while limiting traffic loads on the mobile core through dynamic, selective traffic steering. Wi-Fi eXchange is an important catalyst for operators seeking to transition from Wi-Fi as merely RAN congestion relief to Wi-Fi as a new service delivery medium.

The intelligent traffic steering capability of the Wi-Fi eXchange gives operators many options for defining and implementing routing optimization schemes without impacting existing core network elements. The Wi-Fi eXchange can maintain thousands of traffic options, defined by the operator by any combination of destination, subscriber class, traffic type, and other parameters. With this increased flexibility, operators can direct their uniquely defined traffic flows either through the mobile core or directly to the Internet or other destination.

Wi-Fi eXchange enables operators to more closely align Wi-Fi traffic cost with Wi-Fi traffic value.

The Wi-Fi eXchange provides both Packet Data Gateway (PDG) and Tunnel Termination Gateway (TTG) modes per 3GPP standards, in two deployment solutions. Wi-Fi eXchange includes a number of innovative features with real benefits to operators:

Feature Description and Benefits
3GPP SaMOG for Pre-Release 11 Networks Automatic network access moves critical, but resource intensive, IWLAN functions from a mobile device into the operator network. Reduces complexity and time of deploying client software on devices.
3GPP Standard WLAN Interworking Provides PDG and TTG gateway modes for mobile core integration. Eases integration between 3GPP Standard IWLAN mobile core interfaces and clients on mobile devices.
Dynamic APN Management An intelligent traffic steering function that allows selective per flow routing of traffic to disparate network destinations, while maintaining existing constructs and benefits of APN. Enhances mobile core traffic routing / management practices. Eliminates dependence on UE capabilities.
Flexible Service Classification and Charging An intelligent traffic steering function that allows operators to define a flow or set of flows as a discrete service or application, specify the QoS policies, and create call detail records. Enhances mobile core traffic routing / management practices.
PDP Context Rationalization Allocates a private IP address to the subscriber and initiates interaction with MPC only when data actually transmitted. Saves core resources by preventing unneeded PDP context set up.
IP Address Mediation Mediates between several IP addresses associated with the subscriber to a single IP address assigned to the client. Saves core resources and IP address allocation.


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