Track:  1 Understanding E911 Device Compliance in a VoLTE/IMS Environment
Presenter

Eric Chu

About: Delivering E911 services is an FCC requirement and has been a part of legacy services for some time. In order to support emergency services for VoLTE subscribers, many new items need to be considered from a device and network perspective. For example, the transition from a traditional circuit switched (CS) network to an all IP based network utilizing IMS for voice calls; and the addition of new positioning methods such as eCID, OTDOA, and A-GNSS with a new information exchange protocol (LTE Positioning Protocol); all add new dimensions to this mandatory feature that vendors must now ensure via functional and performance compliance of their devices.
You'll learn:
  • Overview of E911 Services with VoLTE/IMS
  • What’s different from legacy approaches
  • Test strategies and approaches for ensuring device/UE compliance using the R&S CMW500 radio communications tester and SMBV100A vector signal generator for LTE/IMS network emulation within a multi-technology radio access environment.

 

Track:  2 LBS Challenges and Emerging Hybrid Solutions for Handsets
Presenter

Balaji Ayyaswamy

About:

During emergency (E-911) calling, real-world conditions such as multipath fading, no satellite line-of-sight, reflections, Doppler effects, etc. can decrease the accuracy of a fix using AGNSS technology alone. Data and practical experience tells us that there is no one-size-fits all when it comes to location technology that can be used for all circumstances. This opens up the possibility of a hybrid solution that fuses multiple technologies together to provide a more accurate location fix with lower TTTF. Today, AGNSS and OTDOA are leading the LBS hybrid world, with other emerging technologies trying to fit in.

You'll learn:
  • Overview of current LBS technologies as they apply to emergency location
  • Key design and test considerations around A-GNSS and OTDOA
  • Other emerging hybrid technologies
  • Testing strategies using the R&S CMW500 radio communications tester and R&S SMBV100A signal generator for LTE network emulation and GPS and GLONASS signal simulation.

 

Track:  3 Testing CAT-9 Devices with 3CC Carrier Aggregation
Presenter

Paul Gooding

About:

Today, the most advanced phones on the market are typically category 4 phones that require two component carriers with 10MHz bandwidth and 2x2 MIMO, or a single carrier with 20MHz bandwidth using 2x2 MIMO. However, this is quickly changing, as the need for speed is driving the development of advanced category devices; i.e., category 9 (CAT-9) devices with download speeds up to 450 MBs using three 60MHz component carriers. And with many of the U.S. carriers owning spectrum in multiple bands, the ability to design and test devices that utilize carrier aggregation with MIMO using multiple band combinations is fundamental to meeting these high data rates moving forward.

You'll learn:
  • Quick review of PHY/MAC enhancements to support carrier aggregation in LTE-Advanced
  • Principals and design challenges behind achieving high data rate devices
  • Review on MIMO and inter-band and intra-band carrier aggregation techniques
  • Protocol and RF design and test considerations
  • Test strategies and implementations using the R&S CMW500 radio communications tester

 

Track:  4 Overcoming eMBMS Testing Challenges for User Equipment
Presenter

Denis Solomon

About:

Enhanced Multimedia Broadcast Multicast System (eMBMS) for LTE networks is a point-to-multipoint system that delivers broadcast and multicast services both within a cell and the core network. For broadcast transmission across multiple cells, eMBMS utilizes single-frequency network which means simultaneous transmission of the same content over multiple cells. There are numerous design challenges with eMBMS, some of which include PHY/MAC layer verification, end-to-end user-plane testing with new core elements, as well as signaling test. This class will describe these challenges and how to overcome them using the R&S®CMW500 Wideband radio Communication Tester.

You'll learn:
  • Technical overview of the eMBMS in LTE networks
  • Summary of key design and test challenges for eMBMS enabled devices
  • Verify eMBMS implementation using the R&S®CMW500 Wideband Radio Communication Tester

 

Track:  5 VoLTE Device Performance: Audio Quality and Power Consumption
Presenter

Kevin New

About:

With the all-IP nature of LTE, challenges still exist around delivering high quality voice. Today the industry is behind IP Multimedia Subsystem (IMS) for the delivery of Voice (VoLTE) and Short Message Service (SMS). Device manufacturers and mobile operators need to ensure that the end-user quality of experience is as good (or better) than legacy technologies that customers have come to expect. Several aspects impact audio quality of VoLTE-based call, but more then everything these are IP impairments such as packet loss, packet delay and jitter due to e.g. network congestion. In addition, power consumption during a VoLTE call is key. In this technical track we discuss these challenges and how to overcome them with proper VoLTE terminal testing.

You'll learn:
  • Introduction to VoLTE and how to test the underlying functionality on a VoLTE-capable device.
  • How to perform audio quality measurements (PESQ®, POLQA®) over an IMS call
  • How to construct a VoLTE/IMS test bench that can test for voice quality including power consumption utilizing the R&S®CMW500 Wideband Radio Communication Tester, the R&S®UPV Audio Analyzer and the R&S®NGMO2 Power Supply.

 

Track:  6 Testing Video Quality and Key Features of Rich Communication Services (RCS)
Presenter

Eswar Gupta

About:

Rich Communication Services (RCS) adds new services and capabilities beyond what VoLTE over IMS will offer. Features such as enhanced phonebook, enhanced messaging and enriched calls will utilize capabilities around presence, service discovery and multimedia content. In particular, the ability to test video quality that is part of an IMS session is of particular interest given the unique challenges in testing video within an all-IP mobile environment. In this session, we will provide an overview of RCS and discuss the key challenges facing UE testing within a RCS/IMS environment.

You'll learn:
  • Overview on RCS / IMS operation
  • Key challenges in testing UE’s for RCS video quality and other key RCS features

 

Track:  7 Production and Characterization Test of LTE Devices
Presenter

Martin Lim

About:

Testing LTE devices has become increasingly complex. Relative to legacy technologies, such as GSM that used to test four bands, LTE devices have over 20+ bands to test. In addition, LTE adds other parameters such as resource block allocations, bandwidths, etc. that add to the complexity of the tests. These added parameters (and added frequency bands) have resulted in a dramatic increase in the complexity of test cases and total test time. In some instances over a day is needed to test one part. Given this situation, it is critical that test engineers understand what they are up against and employ industry best practices when creating production and characterization test programs.

You'll learn:
  • Best practices to develop test code that tests devices quickly and efficiently.
  • Best practices for making selective spectrum measurements.
  • Techniques for optimizing triggering and overall test speed.

 

Track:  8 Connectivity Testing for the Internet of Things (IoT)
Presenter

Arjun Jayaraman

About:

The Internet of Things (IoT) is quickly taking shape. Functionally, these devices are designed to connect to the cloud and operate seamlessly with existing mobile network infrastructure and other devices. In addition, they also need to securely manage data. According to the GSMA, the total number of mobile connections including IoT is expected to reach 7.4 billion in 2014 rising to 10 billion by 2020. As guidelines and standards are just now being developed, IoT companies require flexible and efficient means to test their concepts and finished products now. In this session, we will explore the key challenges with IoT testing, what’s different, and some current solutions for testing this evolving technology ecosystem.

You'll learn:
  • An overview of the IoT device market and challenges
  • Key testing challenges and what’s required from a T&M perspective
  • test setup using the CMW500 demonstrating Bluetooth Signaling
  • A test setup using the CMW500 demonstrating automated testing from different OS environment

 

Track:  9 An Introduction to Smart Traffic Offloading (LTE to WLAN) and How to Test
Presenter

Yesh Rangaramanujam

About:

As data traffic continues to grow exponentially, wireless operators must consider alternate means by which to reduce the bandwidth pressures on their cellular networks. WiFi offloading, which has been around for several years, appears to be a promising solution but still has much to be desired when considering it’s unique challenges around interworking with mobile 3G and LTE infrastructures, security concerns, and ultimately ensuring the end-users high quality of experience as they seamlessly move between cellular and WiFi environments. With new specification such as Hotspot 2.0, that address many of these issues, more complex use-cases will need to be developed and tested in order to ensure a seamless and high-quality experience for the end-users.

You'll learn:
  • A high-level overview of next generation WiFi and cellular interworking and what this means to suppliers and network operators in the LTE ecosystem
  • An introduction to the Hotspot 2.0 specification by the WiFi Alliance
  • A test setup using the CMW500 Wideband Radio Communication Tester to simulate WiFi and cellular interworking.

 

Track:  10 Testing LTE-U Devices
Presenter

Amit Khanna

About:

LTE-U, or LTE in the unlicensed 5GHz band, is a hot new technology being proposed to address the current capacity crunch for mobile operators. Through carrier aggregation, LTE in the unlicensed spectrum is combined with LTE in the licensed band to provide additional bandwidth and a fatter data pipe. By combining licensed bandwidth with unlicensed 5GHz spectrum, LTE-U will improve overall performance for operators and provide a framework for all spectrum types.

You'll learn:
  • Overview of LTE-U and the benefits / challenges of this technology
  • How to test LTE-U in a licensed band and unlicensed Wi-Fi environment
  • The impact of using LTE within the 5GHz unlicensed band

 

 

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