1. + Software Defined Networking
(SDN) can simplify cellular data
networks design & management

2. +
LTE Data Plane

3. +
Simplified LTE Data Plane

4. + Flexible policies
on subscriber
attributes
4 main extensions to
controllers, switches, and base stations
Automatically translate policies Cellular networks would benefit from
based on subscriber attributes to support for deep packet
packet-processing rules based on IP inspection, header compression, and
addresses and network locations. message-based control protocols like Scalability through
SCTP. local switch
Switches should run software agents agents
that perform simple local actions An open API between the controller
(such as polling traffic counters and and base station can enable remote
comparing against thresholds), at the control of radio resource
behest of the controller. allocation, admission
control, handoff, and paging.
Flexible switch
Remote control of
patterns and
virtualized base-
actions
station resources

5. + Directing Traffic
Through
Middleboxes
Monitoring for
Network Control &
Billing
Flexible switch
Remote control of
patterns and
virtualized base-
actions
station resources