E6966B Datasheet, PDF (2/6 Pages) Keysight Technologies – IMS-SIP Network Emulator

02 | Keysight | E6966B IMS-SIP Network Emulator - Technical Overview
Accelerate Performance Testing of Cellular User Equipment in an All-IP
IMS-SIP Environment
Verify cellular UE services
over all-IP networks
–– UE registration and authentication
with IMS-SIP server
–– Bi-directional VoIP voice, video,
and SMS communication
–– Detailed application logging
–– Test manually or automate
using an API
–– Supplementary service support
–– IPsec support
–– E.911 support
–– Enhanced voice services (EVS)
Testing the functionality and performance
of cellular user equipment (UE) is essential
to achieving a good end-user experience.
An IP multi-media subsystem (IMS) allows
LTE networks to support voice. Session
initiated protocol (SIP) provides the call
set-up protocol for IMS-based VoLTE. The
move to all-IP networks and new protocols
necessitates additional requirements for UE
designers and demands testing solutions
to address the expanded capabilities of the
newest generation of UE.
Meet increasing UE
performance demands
Network operators are motivated to
ensure that performance of UE on their
network results in a positive end-user
experience. While signaling conformance
test addresses certain aspects of
functionality, operators typically want to
conduct more representative performance
testing under different network conditions.
Examples include verifying the UE behaves
as expected after a base station signal is
lost or when moving between different
base stations, and in maintaining an active
data connection through interRAT
handovers such as LTE to 3G.
These real-world use scenarios supple-
ment traditional conformance test and are
commonly formalized into operator-specific
test plans, requiring UE be subjected to
demanding compliance testing before
being approved for use on an operator’s
network.
Reduce design and
compliance test cycles
testing of your UE rather than having
to develop in-house test tools. You can
run tests manually or automate them for
unattended testing; obtaining reliable,
repeatable verification with logged results,
and allowing you to progress rapidly to
deployment.
Voice traffic on IP networks
Having a VoIP and an IMS-based core
network is the goal for the majority of the
industry, and migration to this solution
is currently underway. As a result of this
conversion a number of operators are
placing new requirements on the network
infrastructure and the UE.
For networks which do not support
IMS, alternative technologies are in use,
namely: circuit switched fall back (CSFB)/
single radio approach, and simultaneous
voice and data LTE (SV-LTE)/dual radio
approach.
While these technologies are expedient,
they represent an interim step in the
migration to VoIP and IMS.
The Keysight Technologies, Inc. E6966B
IMS-SIP client and server applications
provide a controlled test environment and
easy-to-use interfaces to verify perfor-
mance of UE running multiple applications
such as voice, video, and SMS on an
IP-based network.
Keysight offers a number of test solutions
based on demands for functional test.
Our measurement knowledge and testing
experience is built into a range of test
tools, so you can focus on verification
With Keysight’s IMS-SIP
implementation, you do not have
to worry about coding a third
party IMS-SIP server into your test
plan—Keysight includes a verified
and reliable PC-based server
and client featuring manual or
automated user control.
IMS-SIP
remote-client
IMS-SIP
server
UXM wireless
test set
UE with
IMS-SIP
client
Figure 1. Typical configuration for LTE UE test