MobileNext Control Gateway

Juniper Networks MobileNext Control Gateway provides the MME + SGSN functions in a mobile packet core.

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Overview
Features and Benefits
Literature

The primary goal of the MobileNext Control Gateway is to take the industry to a new level in control plane scalability and performance, one focused on supporting the heavy signaling load generated by smartphones. With over 107 million smartphones having been sold worldwide in Q2 2011, this has rapidly become a priority for many operators.

The MobileNext Control Gateway supports the full suite of services required by 2G, 3G and LTE mobile networks. The following are just some of those capabilities:

Manages subscribers independent of radio access technology with a single record for 2G, 3G and LTE.
Supports the “attach” process by which a subscriber is identified and authenticated.
Provides packet data protocol (PDP) and bearer context activation and management.
Manages the active/idle transitions that occur as a mobile device powers its radio up and down to manage battery life and radio resources.
Pages idle users. Subscribers who have an IP address and a PDP context but are in idle mode are paged to receive an incoming packet.
Provides billing support for roaming.
Includes a direct tunnel that enables the 3G user plane traffic to bypass the SGSN and move directly between the radio network controller (RNC) and the GGSN.
Acts as a mobility anchor to manage subscriber movements in the RAN.
Acts as a hub for signaling traffic in the core of the network. It manages communication flows between RAN and core nodes.

Feature	Benefit
Multi-PLMN Support	The MobileNext Control Gateway can look like many different MME/SGSNs, each belonging to a different operator. This is very useful for RAN sharing and MVNOs (mobile virtual network operators).
Dynamic Tracking Area Updates	This dramatically reduces the signaling required to track users in the operator's coverage area whose devices are turned on but are not actually active.
Any G Support	It allows the MobileNext Control Gateway to support mobile devices as they move from 2G to 3G to LTE RAN by utilizing a single subscriber record that can apply to any and all RAN technologies.
High Availability	This is essential in enabling a robust mobile data deployment.
Scalability	The focus on simultaneously attached smartphones, call events per second and the number of attached eNodeBs is essential to enabling the control plane to keep up with the rapid growth in smartphones.