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Signals Ahead
Chips & Salsa
Mother of All Benchmarking
  • Signals Ahead
    5G: The Greatest Show on Earth!
    June 11, 2020
    SRG just completed its eleventh 5G benchmark study, this time with a focus on the Verizon Wireless 5G NR millimeter wave (Band n257) network. Verizon currently uses a single 100 MHz channel for uplink data transmissions while downlink transmissions...
  • Signals Ahead
    5G: The Greatest Show on Earth!
    April 16, 2020
    SRG just completed its tenth 5G benchmark study, this time with a focus on T-Mobile's 5G NR network. In the market where we tested, T-Mobile is using a 10 MHz FDD carrier for 5G NR and an additional 5...
  • Signals Ahead
    RAN#87e STANDARDIZATION UPDATE
    March 26, 2020
    SRG just finished participating in RAN 87e from the comforts of our home office.  As it stands now, all 3GPP activities through at least June, including the next plenaries, will be done electronically. instead of face-to-face. Highlights of the Report...
  • Signals Ahead
    5G: The Greatest Show on Earth!
    February 5, 2020
    SRG just completed its ninth 5G benchmark study, this time with a focus on AT&T's 5G NR network, which is deployed as a 5 MHz FDD carrier in Band n5. We did the testing over two separate weekends in...
  • Signals Ahead
    5G: The Greatest Show on Earth!
    January 6, 2020
    SRG just completed its eighth 5G benchmark study, this time with a focus on Verizon's 5G millimeter wave indoor network that it has deployed in US Bank Stadium, home of the Minnesota Vikings in downtown Minneapolis.  For this study we...
  • Signals Ahead
    RAN#86 STANDARDIZATION UPDATE
    December 20, 2019
    SRG just returned from Sitges, Spain where we attended the RAN#86 Plenary.  During the four-day event the plenary "finalized" the study items and work items for Release 17, plus it discussed other important topics which impact the cellular industry. Highlights...
  • Signals Ahead
    5G: The Greatest Show on Earth!
    November 6, 2019
    SRG just completed its seventh 5G benchmark study, this time with a focus on Sprint's 5G network, which is deployed in Band 41, alongside 60 MHz of LTE in the same band. For this study we used two Samsung...
  • Signals Ahead
    5G: The Greatest Show on Earth!
    September 9, 2019
    SRG just completed its sixth 5G NR benchmark study, this time with a focus on energy efficiency. For this study we used a Galaxy S10 smartphone in the Verizon Wireless 5G NR (millimeter wave) and LTE networks located in...
  • Signals Ahead
    5G: The Greatest Show on Earth!
    August 17, 2019
    SRG conducted a benchmark study of the T-Mobile 5G NR network in New York City where the operator has deployed the technology at 28 GHz (Band n257) along with LAA in Band 46. Highlights of the Report include the following: Our...
  • Signals Ahead
    5G: The Greatest Show on Earth!
    July 2, 2019
    SRG conducted a benchmark study of the SK Telecom (SKT) 5G NR network in Seoul, South Korea. This report is critical to any organization wanting to understand the current capabilities of 5G NR operating in FR1 (sub 7.125 GHz)...
  • Signals Ahead
    RAN#84 Standardization Update
    June 10, 2019
    Last week, we attended the RAN#84 Plenary in Newport Beach, CA. In this Signals Ahead report we provide our thoughts based on recent RAN Plenary activities and key decisions impacting the functionality and timeline of the 5G standard. That's Messed...
  • Signals Ahead
    5G: The Greatest Show on Earth!
    May 6, 2019
    SRG conducted a benchmark study of the Verizon Wireless 5G NR networks in Minneapolis and Chicago. Although data speeds are interesting, we focused our efforts on metrics that have far more implications on the long-term prospects for 5G NR,...
  • Signals Ahead
    RAN #83 5G Standardization Update
    March 28, 2019
    Last week, we attended the RAN#83 Plenary in Shenzhen, China. In this Signals Ahead report we provide our thoughts based on recent RAN Plenary activities and key decisions impacting the functionality and timeline of the 5G standard. The Time 5G...
  • Signals Ahead
    LET'S GO TO THE VIDEOTAPE...
    March 14, 2019
    SRG conducted its second independent benchmark study of LTE-Broadcast and how it compares with unicast delivery mechanisms. For this study, we focused primarily on the video MOS (Mean Opinion Score), which provides an objective quantification of the video quality. Highlights...
  • Signals Ahead
    IT'S RAINING CATS AND CATS
    February 19, 2019
    SRG conducted what we believe is the first independent benchmark study of 3GPP-based IoT devices. For this study, we analyzed the power consumption / energy requirements of Cat M1 and Cat NB1 modules and devices operating under a wide...
  • Signals Ahead
    RAN#82 5G Standardization Update
    January 8, 2019
    Last December, we attended the RAN#82 Plenary in Sorrento, Italy.  In this Signals Ahead report we provide our final thoughts based on recent RAN Plenary activities and key decisions impacting the functionality and timeline of the 5G standard. Ongoing Release...
  • Signals Ahead
    The Matrix
    November 29, 2018
    SRG conducted the first independent benchmark study of Massive MIMO. For this study, we tested in Dallas, Texas with the Sprint LTE TDD network (Band 41) by comparing the results of side-by-side 64T64R and 8T8R antenna systems. Highlights of the...
  • Signals Ahead
    5G: The Greatest Show on Earth!
    October 22, 2018
    SRG conducted the first independent benchmark study of the Verizon Wireless 5GTF commercial fixed wireless service. For this study, we tested in Houston,Texas, where the operator has deployed a 600 MHz radio channel (six,100 MHz channels) in the 28...
  • Signals Ahead
    RAN#81 5G Standardization Update
    September 25, 2018
    SRG recently attended the RAN#81 Plenary, held in Gold Coast, Australia. 3GPP continues to work on Release 15, Release 16, and now it is doing some initial work on Release 17. While the "little things" that remain for Release...
  • Signals Ahead
    RAN#80 5G Standardization Update
    July 1, 2018
    SRG recently attended the RAN#80 Plenary, held in La Jolla, California. Chennai, India. As we indicated in our recent Signals Flash, 3GPP signed off on the set of specifications which define Option 2.  However, the real interest lies with...
  • Signals Ahead
    Standing on our 5G Soapbox
    May 21, 2018
    Since 2010, SRG has been analyzing technology leadership during the standardization process, based on how frequently a company submits technical documents to the 3GPP standards body. Combined with our participation in 3GPP meetings since the start of the 5G...
  • Signals Ahead
    RAN#79 5G Standardization Update
    April 10, 2018
    SRG recently attended the RAN#79 Plenary, held in Chennai, India.  With the Option 3 NSA drop "finished" in December, it was time to move onto other items pertaining to both Release 15 as well as to Release 16.  Most items...
  • Signals Ahead
    5G: The Greatest Show on Earth!
    February 21, 2018
    SRG conducted what it believes is the first independent benchmark study of an operator's 5G network. For these tests, we used the Verizon Wireless 5GTF network in Houston, Texas where Samsung is the infrastructure supplier. Although the 5GTF specifications...
  • Signals Ahead
    SRG Travels: It's a Small Cell World After All!
    January 24, 2018
    SRG conducted its third benchmark study of small cells. For this round, we turned our attention to LAA (Licensed Assisted Access) and the AT&T network in Indianapolis, Indiana where Ericsson is the infrastructure supplier. This trip marked the third...
  • Signals Ahead
    RAN#78 5G Standardization Update
    January 3, 2018
    SRG recently attended the RAN#78 Plenary, held in Lisbon, Portugal. In addition to approving the set of specifications, which comprise the early drop of Release 15 (NSA Option 3 and eMBB only), the Plenary made several decisions or delayed...
  • Signals Ahead
    To Delano and Beyond!
    December 16, 2017
    SRG conducted a benchmark study of HPUE (High Power User Equipment) with a Power Class 2 Power Amplifier (PA), to determine how it performs against an ordinary smartphone with a Power Class 3 PA.  A Power Class 2 PA...
  • Signals Ahead
    SRG Travels: It's a Small Cell World After All!
    October 26, 2017
    In this Signals Ahead report we provide results from our independent and in-depth analysis of LTE small cells, specifically LTE-FDD small cells that have been deployed as part of AT&T's 5G Evolution in Indianapolis, Indiana. We also include an...
  • Signals Ahead
    RAN #77 5G Standardization Update
    September 25, 2017
    We recently attended the RAN #77 Plenary, held in Sapporo, Japan. In addition to following the events proceedings we took the time to do some VoLTE testing, given that two US operators have announced VoLTE roaming agreements with two...
  • Signals Ahead
    SRG Travels: It's a Small Cell World After All
    August 14, 2017
    In this Signals Ahead report we provide results from our independent and in-depth analysis of LTE small cells, specifically mini-macro cell sites and the Sprint "Magic Box," which is essentially a repeater-like solution that leverages a B41 radio channel...
  • Signals Ahead
    RAN #76 5G Standardization Update
    June 26, 2017
    We recently attended the RAN #76 Plenary, held in West Palm Beach, Florida. Following on the heels of RAN #75, where 5G moved from a study item to a work item, things were far more subdued at this plenary....
  • Signals Ahead
    Keeping Up With The Jetsons
    May 12, 2017
    In this Signals Ahead report we provide results from the industry's first independent and in-depth analysis of LTE and its ability to provide command and control (C2) for drones. For this study, we tested the four major US mobile...
  • Signals Ahead
    646.2 Degrees of Freedom
    April 19, 2017
    In this Signals Ahead report we provide the industry's first independent and indepth analysis of 4CCA and Gigabit LTE. For this study we used the Telstra network in Sydney, Australia. Key Highlights from this Study Our Thanks.  This study could not...
  • Signals Ahead
    RAN#75 5G Standardization Update
    March 16, 2017
    We recently attended the RAN #75 Plenary, held in Dubrovnik, Croatia. At this plenary, 5G finally transitioned from being a study item to a work item, so now the real work begins. As part of our series of reports...
  • Signals Ahead
    Video Killed the Radio Star...and then in Release 9, 3GPP Created eMBMS
    February 16, 2017
    In this Signals Ahead report we provide results from the industry's first and only independent benchmark study of unicast and eMBMS, including both video performance and the impact on the network. For this study we used the Telstra commercial...
  • Signals Ahead
    Finding MIMO
    January 9, 2017
    In this Signals Ahead report we provide the results from the industry's first and only independent performance analysis of 4x4 MIMO. For this study we used the T-Mobile commercial LTE network in the Minneapolis market where Nokia is the...
  • Signals Ahead
    The Politics of 5G Standardization
    November 30, 2016
    We recently attended the RAN working group meetings which were jointly held, along with the SA2 working group, in Reno, NV. As part of our series of reports on the 5G standardization process, we provide an update on the...
  • Signals Ahead
    5G Standardization Update
    October 28, 2016
    We recently attended the RAN #73 Plenary, held in New Orleans. As part of our series of reports on the 5G standardization process, we provide an update on the recent activities pertaining to both the new air interface as...
  • Signals Ahead
    The Hunt for Uplink 64-QAM
    September 30, 2016
    In this Signals Ahead report we provide the results from the industry's first and only independent performance analysis of two critical LTE features which can meaningfully impact the uplink performance of an LTE network. For this study we used...
  • Signals Ahead
    Behind the VoLTE Curtain, Part 6
    July 29, 2016
    In this Signals Ahead report we provide part two of our two-part study of the new EVS voice codec and how it compares with AMR-WB. For this independent study, we purchased four commercial smartphones (LG G5) and used the...
  • Signals Ahead
    5G Standardization Update
    June 30, 2016
    Earlier this month we attended the RAN#72 Plenary, held in Busan, South Korea. As part of our series of reports on the 5G standardization process, we provide an update on the recent activities pertaining to both the new air...
  • Signals Ahead
    Behind the VoLTE Curtain, Part 5
    June 8, 2016
    In this Signals Ahead report we continue our multi-part series on VoLTE-related topics by providing the results of the industry's first lab-based independent benchmark study of the EVS voice codec and how it compares with AMR. This study is...
  • Signals Ahead
    How Fast is that Kangaroo in the Window?
    May 2, 2016
    In this Signals Ahead report we provide the results of the industry's first truly independent benchmark study of how an LTE-Advanced (Rel 12) network with 256 QAM performs. This study was conducted using Telstra's 600 Mbps LTE network in...
  • Signals Ahead
    Potato, Potahto, Tomato, Tomahto, Let's Call the Whole Thing 5G-NR
    April 5, 2016
    Earlier this month we attended the RAN#71 Plenary, held in Gothenburg, Sweden. As part of our series of reports on the 5G standardization process, we provide an update on the recent activities pertaining to both the new air interface...
  • Signals Ahead
    FDD + TDD Carrier Aggregation
    March 9, 2016
    We recently completed a drive test of the Optus LTE network in Melbourne, Australia, which supports LTE FDD and LTE TDD (x2) carrier aggregation. The objective of this study was to determine the technical maturity of the LTE feature...
  • Signals Ahead
    The Murky Underworld of IoT
    January 30, 2016
    While there is a lot of industry interest in IoT air interfaces and their individual merits, there is also more than a fair amount of uncertainty and unknowns regarding these technologies and what they can and cannot do, both...
  • Signals Ahead
    All Quiet on the 5G Front
    January 3, 2016
    Just recently we returned from the 3GPP RAN#70 Plenary, which was held it Sitges, Spain. Conventional wisdom suggests that the 5G standard is baked and resting on a hot plate, given all of the operator claims about forthcoming trials,...
  • Signals Ahead
    Get SMART[ER]
    December 9, 2015
    Unlike what occurred during the previous introductions of a new family of technologies, 3GPP has leveraged the work of the NGMN Alliance and other entities to define the Use Cases for 5G. Although the Use Cases are still in...
  • Signals Ahead
    Chips and Salsa XX - When Iconic Meets Anechoic, Part II
    October 30, 2015
    In our 20th Chips and Salsa, we collaborated closely with Spirent Communications, PCTEST, and EMT Labs, to conduct arguably the industry's most extensive independent OTA MIMO performance testing of leading smartphones - from the Apple iPhone to the ZTE Nubia....
  • Signals Ahead
    Looking Further Ahead to 5.5G
    October 7, 2015
    Updates on the 3GPP 5G RAN standardization efforts
  • Signals Ahead
    Behind the VoLTE Curtain, Pt. 4
    August 10, 2015
    We conducted an independent performance analysis of T-Mobile's VoWi-Fi service. Spirent Communications provided us with its Nomad User Experience Analytics System to conduct the call quality tests. We used Accuver Americas XCAL-M drive test solution and XCAP post processing...
  • Signals Ahead
    Eight is Enough
    May 28, 2015
    Analysis of LTE TDD with carrier aggregation, 8-branch antennas and TM8
  • Signals Ahead
    Chips and Salsa XIX: Carrier Aggregation Chipset Benchmark Study
    May 19, 2015
    Leveraging the Spirent 8100 test platform as well as engineering support, SRG conducted the industry's first independent benchmark study of LTE-A chipsets with support for 10 MHz + 10 MHz carrier aggregation.
  • LTE-Advanced Flexes Its Muscles
    May 1, 2015
    By leveraging a suite of test solutions from Accuver, we conducted the industry's first independent analysis of a commercial LTE-Advanced network that supported three separate radio carriers (carrier aggregation).
  • Signals Ahead
    IR.94 Video Telephony Benchmark Study
    March 31, 2015
    Performance analysis of IR.94 and eight other OTT video chat applications
  • Signals Ahead
    Video Killed the Radio Star [Video over LTE Performance Benchmark Study]
    February 9, 2015
    Video performance analysis of seven popular smartphones
  • Signals Ahead
    VoLTE Benchmark Study, Part 2
    January 12, 2015
    Smartphone / VoLTE client benchmark study
  • Signals Ahead
    Connect 4 - VoLTE Roaming
    October 14, 2014
    VoLTE roaming network architecture implications and challenges
  • Signals Ahead
    Testing the Galaxy S5 LTE-A Cat 6 Smartphone in a Distant Place Far, Far Away
    September 9, 2014
    Benchmark study of SK Telecom's Cat 6 (225 Mbps) network
  • Signals Ahead
    Behind the VoLTE Curtain, Part One
    August 7, 2014
    Benchmark study of AT&T's VoLTE service
  • Signals Ahead
    By the Light of the Silvery Moon
    July 8, 2014
    4x2 CL-MIMO Benchmark Study
  • Signals Ahead
    LTE and the Public Safety Communications Paradigm Shift
    May 29, 2014
    Opportunities and challenges for Public Safety Communications
  • Signals Ahead
    Chips and Salsa XVIII: The Cat 4 is Out of the Bag
    May 7, 2014
    Results from the latest LTE FDD chipset benchmark study
  • Signals Ahead
    Deep in the Bowels of LTE Network Performance
    April 3, 2014
    LTE Performance involving 5 US operators and their Infrastructure Suppliers
  • Signals Ahead
    eMBMS/LTE Broadcast
    February 12, 2014
    LTE Broadcast opportunities and challenges
  • Signals Ahead
    Chips and Salsa XVII - Smartphone OTA Performance Benchmark Study
    January 16, 2014
    OTA performance benchmark study of leading smartphones
  • Signals Ahead
    SDN and NFV
    November 27, 2013
    An examination of SDN and NFV although their implications
  • Signals Ahead
    LTE Advanced Carrier Aggregation Network Performance Study
    October 23, 2013
    Analysis of LTE Advanced Carrier Aggregation
  • Signals Ahead
    124.2 GB in a LTE TDD network - been there, done that, bought the [Hello Kitty] t-shirt
    September 23, 2013
    LTE TDD and LTE FDD network benchmark study
  • Signals Ahead
    Fifty Shades of MIMO
    August 12, 2013
    Quantifying the impact of MIMO in commercial LTE networks
  • Signals Ahead
    What's the PSC, Kenneth?
    May 28, 2013
    Interference cancellation in a 3G network
  • Signals Ahead
    Everything Under the SON
    April 25, 2013
    Like most industry buzzwords, Self-optimizing Networks (SON) means different things to different people. Regardless of what technically classifies as SON, we firmly believe that SON will play an extremely critical role in the future evolution of wireless networks. In...
  • Signals Ahead
    Chips and Salsa XVI
    February 25, 2013
    LTE baseband chipset benchmark study
  • Signals Ahead
    On the Inside, Looking Out
    January 22, 2013
    In-building performance study of LTE networks in four frequency bands
  • Signals Ahead
    LTE Band 7 versus LTE Band 4 - GAME ON!
    December 5, 2012
    In order for a dual-band strategy to be successful it needs to meet several criteria. In addition to providing a massive amount of capacity and delivering the maximum throughput that LTE supports, the higher frequency needs to provide at...
  • Signals Ahead
    M2M
    November 6, 2012
    Technology and business implications for the M2M market opportunity
  • Signals Ahead
    Lost and Found
    October 15, 2012
    A-GNSS platform and navigation application test results
  • Signals Ahead
    Chips and Salsa XV: Disparately Seeking Satellites
    September 13, 2012
    In order to pull off this highly-differentiated study we collaborated with Spirent Communications to get access to their widely-regarded 8100 Location Technology platform and engineering support in order to obtain highly objective results. In total, we include results for...
  • Signals Ahead
    The B Side of LTE
    August 20, 2012
    A look at the proposed features for 3GPP Release 12 and beyond
  • Signals Ahead
    Mobile Core Network 2.0
    July 2, 2012
    A technical analysis of the various ways in which the EPC will evolve to support the needs of operators
  • Signals Ahead
    LTE World Summit Recap: Debbie Downer Does Barcelona
    June 11, 2012
    A recap and analysis of the LTE World Summit 2012 event
  • Signals Ahead
    Improve your [RF] Front-End in Seven Easy Steps!
    May 23, 2012
    RF Front-end issues due to the introduction of LTE
  • Signals Ahead
    LTE-Advanced and Coordinated Multi-Point (CoMP)
    April 16, 2012
    Detailed analysis of the various CoMP schemes from R11 and beyond
  • Signals Ahead
    Cellular and Wi-Fi: a match made in heaven?
    March 28, 2012
    Technical discussion on the future integration of cellular and Wi-Fi networks
  • Signals Ahead
    RCS - Reinventing Voice and Messaging
    March 22, 2012
    A look at RCS and its various implications
  • Signals Ahead
    Expected Trends for MWC and 2012
    February 24, 2012
    Our view of expected trends at this year's MWC as well as for 2012
  • Signals Ahead
    The Mother of all Network Benchmark Studies - Volume 4
    January 31, 2012
    HSPA+ and DC-HSDPA network and vendor-specific performance evaluation
  • Signals Ahead
    The Mother of all Network Benchmark Tests - Volume 3
    January 17, 2012
    Detailed analysis of LTE performance by operator and by vendor
  • Signals Ahead
    Chips And Salsa XIV: The World’s First LTE Chipset Performance
    December 15, 2011
    Performance benchmark study of commercially-available LTE chipsets
  • Signals Ahead
    4G World Recap
    November 8, 2011
    Highlights and analysis from 4G World 2011
  • Signals Ahead
    Quantifying the User Experience
    October 19, 2011
    Results and analysis of user experience metrics captured during testing in various next-generation wireless networks
  • Signals Ahead
    The Mother of all Network Benchmark Tests
    September 28, 2011
    Network/technology performance analysis of the leading next-gen wireless technologies
  • Signals Ahead
    90GB in AT&T’s 700MHZ LTE NETWORK
    September 18, 2011
    A first look at AT&T's LTE network in Houston, TX
  • Signals Ahead
    Turning TD-LTE, I really think so
    July 6, 2011
    TD-LTE technology and market update from Shanghai, China.
  • Signals Ahead
    United we Stand, Fragmented we Fail
    June 8, 2011
    We have been attending the LTE World Summit, which takes place every late spring in Europe, for three years running. At each subsequent event the number of operators has increased and the hot topics have evolved from the theoretical...
  • Signals Ahead
    HetNet: When Big Cells and Small Cells Collide
    May 16, 2011
    Even under the most optimistic set of assumptions, we demonstrate that by 2020 at least 25% of the mobile data traffic in North America will have to be offloaded from the traditional macro network. Similar results are likely in...
  • Signals Ahead
    Chips and Salsa XIII: Now Seasoned with Soy Sauce
    April 26, 2011
    This special edition Chips and Salsa report marks the fifth time that we have collaborated with Spirent Communications to conduct independent performance benchmark analysis of 3G chipsets. Thanks to our long-standing effort and reputation for doing these tests, not...
  • Signals Ahead
    Signals way out Ahead: looking well beyond tomorrow and out into the distant future
    February 14, 2011
    In this issue we discuss likely technology and market trends that we see developing over the next year and throughout the remainder of the decade. Topics discussed include LTE data roaming, VoLTE, network optimization strategies, LTE-Advanced, 802.16m, HSPA+ market...
  • Signals Ahead
    DC-HSDPA Drive Test Results - Part One
    January 12, 2011
    DC-HSDPA versus HSPA+ Drive Test Results
  • Signals Ahead
    DC-HSDPA Drive Test Results - Part Two
    January 12, 2011
    Drive test results of DC-HSDPA versus HSPA+
  • Signals Ahead
    Can you schedule me now?
    December 20, 2010
    With 2x10MHz or 2x20MHz of spectrum and an unloaded network, LTE can deliver incredibly high individual user data rates. At a minimum the data rates should be 8x higher than what is possible with HSPA+ (4x with MIMO) and...
  • Signals Ahead
    A Perspective from LTE Americas and the GSMA Mobile Asia Congress
    December 3, 2010
    In this issue of Signals Ahead we provide and discuss various data points which stem from our participation and attendance at the LTE Americas event in Dallas, Texas and the GSMA Mobile Asia Congress (MAC) in Hong Kong....
  • Signals Ahead
    2 x 20MHz of LTE and the Heisenberg Uncertainty Principle
    October 7, 2010
    In early September we took to the streets of Stockholm and Gothenburg to conduct our second exhaustive independent performance analysis of an LTE network(s). Thanks to four dongles and 2x20MHz of LTE spectrum we transferred approximately 600GB of data...
  • Signals Ahead
    Backhaul redux
    August 10, 2010
    When we did our first piece on next-generation backhaul back in 2007 operators were in the process of deploying HSPA and 1xEV-DO Rev A. And while they recognized that mobile data usage was growing, these operators had no idea...
  • Signals Ahead
    Come Together, Right Now, Over LTE
    July 6, 2010
    In this issue of Signals Ahead we provide a market and technology update on LTE with a particular focus on the European market. This report stems from our participation at this year's LTE Global Summit, which was held in...
  • Signals Ahead
    Mobile WiMAX Chipset Performance
    June 7, 2010
    In our twelfth Chips and Salsa edition we provide results from the industry's first independent benchmark of leading Mobile WiMAX chipsets. In collaboration with Agilent Technologies, who provided its Agilent E6651A Mobile WiMAX Test Set and the Agilent PXB...
  • Signals Ahead
    VoLTE - a modern day Tower of Babel?
    May 5, 2010
    For the last 18 months or so there has been a lot of debate and controversy surrounding LTE, in particular how, or even if, the technology would support basic voice services. Part of the problem has to do with...
  • Signals Ahead
    Smartphone Signaling
    January 28, 2010
    Over the last few years there has been a dramatic increase in the volume of mobile data traffic and this growth shows no signs of abating. In several well-publicized cases, operators have faced consumer backlash due to low call...
  • Signals Ahead
    2010 Preview
    January 4, 2010
    Since we started publishing Signals Ahead back in 2004 we have dedicated our first issue of the new year to a recap of the prior year and our outlook for the coming year. Sometimes our predictions were spot on...
  • Signals Ahead
    Service Assurance - ensuring next-generation networks
    December 15, 2009
    The role that service assurance has in an operator's network has evolved over the last decade and there are a number of new trends and participants that will continue to evolve service assurance into the next decade. The...