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The Mother of All Network Benchmark Tests Volume 4 - Detailed Performance Analysis (the HSPA+ and DC-HSDPA edition)
Signals Research Group, LLC, Feb 2012
Over the last several months Signals Research Group has been conducting a network/technology benchmark study of all of the leading next-generation wireless technologies, as exemplified by operator deployments in North America. 'Signals Ahead: The Mother of all Network Benchmark Tests ' is a series of four reports:
Volume 1
Network and Technology Performance
Volume 2
Quantifying the User Experience
Volume 3 and Volume 4
Detailed Performance Analysis
The four reports 'Signals Ahead: The Mother of all Network Benchmark Tests ' are included with any paid corporate subscription to Signals Ahead, or can be purchased separately. Volume 4 is free when purchasing volume 3.
ABOUT VOLUME 4 - DETAILED PERFORMANCE ANALYSIS (the HSPA+ and DC-HSDPA edition)
Volume 4 (the HSPA+ and DC-HSDPA edition) of what was originally planned to be a threepart series of reports provide a deep-dive analysis of how HSPA+ and DC-HSDPA networks perform today as exemplified by operator deployments in North America. Specifically, the focus is almost entirely on AT&T and T-Mobile, as well as Alcatel Lucent (ALU), Ericsson (ERICY), and Nokia Siemens Networks (NSN).
HSPA+ and DC-HSDPA Observations:
- Dropped Carrier. With one vendor’s implementation, the test dongle frequently dropped the secondary carrier for the duration of the test, thereby relegating DC-HSDPA to a single HSPA+ carrier.
- Cell Handover Performance. One vendor had extreme difficulty maintaining throughput during a cell handover, instead there were extended periods where the throughput was essentially zero.
- Resource Limitations. One vendor’s infrastructure had resource limitations, which artificially reduced the throughput from what it could otherwise have been.
- CQI versus 64QAM Disparities. A huge disparity between the reported CQI values and the network assignment of 64QAM has been documented. Ultimately, this disparity had a dramatic impact on how frequently 64QAM was used and it impacted the throughput across the spectrum of CQI values (e.g., 0-30).
-Picking a Winner. After normalizing the MAC-HS throughput to an “empty network” by adjusting the scheduling rate and number of code assignments, the report's findings demonstrate that one vendor’s solution delivered measurably higher throughput than its peers – a conclusion validated through other means.
REASONS TO BUY
This report is critical for operators trying to understand how to market their broadband wireless service offering as well as how they should prioritize their network optimization activities in order to achieve the best possible user experience for their subscribers. In addition to mobile operators, this report provides invaluable insight to application developers and content providers who require a greater appreciation for how network performance characteristics impact the user experience.
SIGNALS AHEAD SUBSCRIPTION INFORMATION
Signals Ahead is a research-focused product that is published on a periodic basis. Its clientele include all facets of the wireless ecosystem, including some of the largest mobile operators, the top handset suppliers, the major infrastructure vendors, subsystem suppliers, semiconductor companies and financial institutions, including Wall Street, Private Equity and Venture Capitalists, spread across five continents.
Product samples
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Also available
The Mother of all Network Benchmark Tests Volume 3 - Detailed Performance Analysis (the LTE edition)
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