SI
SI
discoversearch

We've detected that you're using an ad content blocking browser plug-in or feature. Ads provide a critical source of revenue to the continued operation of Silicon Investor.  We ask that you disable ad blocking while on Silicon Investor in the best interests of our community.  If you are not using an ad blocker but are still receiving this message, make sure your browser's tracking protection is set to the 'standard' level.
Technology Stocks : 3G Wireless: Coming Soon or Here Now? -- Ignore unavailable to you. Want to Upgrade?


To: data_rox who wrote (585)7/9/2006 7:29:17 PM
From: Eric L  Respond to of 666
 
Merging 3GPP and 3GPP2 ??? and GSC11

The 1st article is 2½ months old but reminds me that I should go digging in the ETSI DocsBox for selected GSC11 presentations ...

webapp.etsi.org

The 2nd article is a recap of GSC11 which this year was chaired by QUALCOMM's Anil Kripalani, from the TIA perspective.

At the event the GSC re-adopted its positions on IPR policy and on "open standards." I don't think I posted their position last year so best I hunt em up.

>> Gavin Patterson Says a Merger of 3GPP and 3GPP2 Is Still in the Cards

Gavin Patterson
Informa T&C
24 April 2006

tinyurl.com

Not much appears to have happened since Karl Heinz Rosenbrock, Director General of ETSI, last year proposed that the work of the two 3G partnership projects - 3GPP and 3GPP2 - should be merged into a single body (3G Mobile; Sep. 14, 2005).

Rosenbrocks proposal - which could, presumably, give rise to a single standard for the mobile industry going forward - was contained in a number of resolutions made during the tenth meeting of the Global Standards Collaboration (GSC#10) in Sophia Antipolis, namely:

1. to encourage 3GPP and 3GPP2 et al to continue to work on enhancing the IMT-2000 standards

2. to encourage the creation of a single body at the appropriate time which would encompass the two Partnership Projects et al to develop specifications for the new capabilities for the "Systems Beyond IMT-2000"

3. to encourage standards organizations to support ITU-R in determining an appropriate name for "Systems Beyond IMT-2000" based on timeline and principles of ITU-R Working Party 8F

4. to invite 3GPP and 3GPP2 Organizational Partners to study an organization that could take care of the evolution of the current systems and the long term evolution for such systems taking into account copyrights, working procedures, IPR aspects etc. and report to the next meeting for review

5. to review this Resolution at future GSC meetings as required.

Although the incorporation of 3GPP and 3GPP2 into a single body carries its own political and cultural problems, the biggest barrier is undoubtedly talks of a harmonized RAN for the respective standards.

However, with 3GPP and 3GPP2 now both turning their attention to the long-term evolution of WCDMA and CDMA2000 respectively, calls for the bodies to merge and come up with a single LTE standard are growing louder - if imperceptibly so.

Speaking at the 3GSM World Congress in Barcelona last month, Adrian Scrase, CTO of ETSI, said the fact that 3GPP2 is also considering an LTE plan now offers the opportunity to align separate working groups and remove unnecessary differences for the IP core network. "Maybe a single air interface will result," he said.

Francois Courau, chairman of 3GPP's Technical Specifications Group on the Radio Access Network, also said that now may be the time to raise again the issue of merging 3GPP and 3GPP2 and try to work together.

Even Ed Tiedemann, Vice President of Engineering at Qualcomm, did not dismiss the proposal out of hand. "There are a number of advantages and there are a number of drawbacks, but it is not necessarily a dead deal," he said. "Even if we merge the bodies it does not therefore mean that you will merge the two standards. There is no clear consensus at this point."

There is already a lot of crossover between members of the two groups and a lot of the technical work on incorporating OFDM and MIMO into future standards could easily be shared.

The main sticking point would appear to be that 3GPP will replace CDMA with OFDM and MIMO in Radio Layer 1 of LTE, while 3GPP2 is looking to incorporate OFDM and MIMO into Revision B of CDMA2000, the multicarrier version of the standard that will increase bandwidth to about 20MHz.

Courau says the 3GPP downlink transmission scheme for both FDD and TDD will be based on OFDM. "Each 10 ms radio frame is divided into 20 equally sized sub-frames. In addition, for coexistence with LCR-TDD, a frame structure identical to the one used in TD-SCDMA, is also supported when operating E-UTRA in TDD mode," he said.

Uplink will be based on low-PAPR single-carrier transmission (SC-FDMA: TDM inside OFDMA). "Each 10 ms radio frame is divided into 20 equally sized sub-frames and scheduling can operate on a sub-frame level," says Courau. "To allow for multi-user MIMO reception at the Node B, transmission of orthogonal pilot patterns from single Tx-antenna UEs is part of the baseline uplink transmission scheme."

Meanwhile, 3GPP2 has so far come up with one proposal for the long term evolution of CDMA2000 that includes two separate 'modes'. Or, to put another way, two proposals!

The air interface document for Rev. B (otherwise known as Phase 1 evolution) was scheduled to be published at the end of March 2006. Proposals for Rev. C (Phase 2 evolution - also known as LTE) also had to be submitted end-March.

The first Rev. C proposal was submitted in January by Lucent Technologies, Nortel and Samsung. Their joint proposal had two basic modes - Loosely Backwards Compatible (LBC) and Strictly Backwards Compatible (SBC).

The LBC mode uses OFDMA on the forward link and a combination of CDMA and OFDMA on the reverse link, while SBC allows legacy and new handsets to use the same carrier - with new handsets able to use the new capabilities.

The SBC forward link structure is similar to Rev. B, except that OFDMA is substituted in slots being transmitted to new handsets. The SBC reverse link uses CDMA on legacy carriers and a combination of CDMA and OFDMA on new reverse link carriers.

Subsequent proposals came from Qualcomm, Motorola, Huawei and LG Electronics. Motorola and Huawei reportedly submitted LBC proposals only, while Qualcomm submitted both LBC and SBC, and LGE submitted SBC only.

Hamid Akhavan, CTO of T-Mobile, said that it should become clear by end-June whether or not the 3GPP/3GPP2 evolution can be harmonized. "If CDMA2000 operators join in [with 3GPP] then the vendors will be forced to move that way as well," he said.

Members of both 3G partnership projects will submit their thoughts on merging to the next GSC meeting to be held in Chicago May 28 to June 2, 2006. <<

>> GSC-11 Communiqué: "Standardization Advancing Global Communications"

Telecommunications Industry Association (TIA)
Arlington, VA
June 8 , 2006

The world’s leading telecommunications and radio standards organizations met from May 28 to June 2, 2006 to promote innovation and collaboration on next-generation standards for converged fixed/mobile communication services. The Eleventh Global Standards Collaboration meeting (GSC-11), including a User Workshop, was hosted by the Telecommunications Industry Association (TIA) in Chicago and was attended by more than 100 participants from nine participating standards organizations (PSOs) and the Inernational Telecommunications Union (ITU).

Anil Kripalani, GSC-11 chairman, observed: “People's lives are positively impacted by the world of modern global telecommunications. Leaders from ICT standards bodies from around the world came together this week to address a wide range of subjects including healthcare, public safety, and entertainment, and to continue harmonizing their standards activities and increasing the collaboration in the global community.”

In keeping with this goal, the meeting identified several new topics for collaboration:

* Mobile multimedia broadcast and multicast systems, supporting both commercial and public safety applications.
* IPTV, offering the promise of new innovative video entertainment experiences to the public.
* Information and communication technology (ICT) to aid the delivery of healthcare services.

Other key results of GSC included:

* Successful ongoing collaboration on Next-Generation Networks (NGN) standardization since GSC-10 resulting in a substantial convergence of fixed and mobile networking approaches.
* Importance of building and maintaining a culture of cyber security in which everyone has a role to fulfill.
* Role for networking standards to enable Radio Frequency IDentification (RFID)- based applications.
* Strong support for ongoing collaboration and harmonization of evolving 3G and other new wireless broadband access technologies to make access to advanced ICT services “anytime and anywhere” a reality.
* Potential of communications technology to relay safety messages to reduce vehicle accidents and waste of human life.
* The User Workshop was a great opportunity to exchange more detailed information on user requirements and the related standards that are being developed on a worldwide scale for the benefit of all. The Workshop, which included a panel on accessibility, focused on cyber security, emergency communications, and user issues for VoIP.

In addition, the GSC re-adopted its positions on IPR policy and on "open standards."

The Global Telecommunications Standards Collaboration (GTSC) and Global Radio Standards Collaboration (GRSC) meetings are a vital part of the Global Standards Collaboration. The GRSC and GTSC meetings aim to establish objectives to accelerate the process of global telecommunication and radio standards development thereby promoting interconnectivity and interoperability.

Specific resolutions on the following topics were agreed:

* Continuing cooperation on International Mobile Telecommunications (IMT) standardization
* Emergency Communications
* Radio Frequency Identification (RFID)
* Open Standards
* Healthcare ICT Standards
* IPTV Standards
* Global UltraWideband (UWB) Standardization
* Automotive Crash Notification
* Support for Vehicle Safety Messaging
* Terminology for Software-Defined Radios (SDR)
* Support for World Standards Cooperation (WSC) Event on ICT in Motor Vehicles
* Facilitating Liaison in Relation to Measurement Methodologies for Assessing Human Exposure to RF Energy
* Mobile Multimedia Broadcast and Multicast
* Public Protection and Disaster Relief
* Next-Generation Networks (NGN)
* Cyber security
* Home Networking
* Intellectual Property Rights Policies
* Broadband Services in Rural and Remote Areas
* Facilitating Liaison in Relation to Measurement Methodologies, associated Measurement Uncertainty and Calibration
* Personally Identifiable Information Protection
* User Needs, Considerations and Involvement
* Wireless Access Systems including Radio Local Area Network and Ad Hoc Networking, particularly for systems providing broadband wireless access
* Radio Microphones and Cordless Audio Standardization

Other areas discussed were:

* Security and Lawful Interception
* IP over Wireless
* Intelligent Transportation Systems
* Satellite Services
* Communications onboard aircraft
* NGN: Architecture, Protocols, End-to-End QoS, Network Management, Lawful/Legal Interception, Service Platforms and Interworking of Services

Dan Bart, TIA senior vice-president, standards and special projects, said: “This GSC meeting provided an appropriate occasion to recognize the long service and outstanding contribution of Karl Heinz Rosenbrock, the outgoing Director General of ETSI. His positive influence in bringing together the world of telecommunications standards will have a lasting impact on our community.”

The GSC Web site: gsc.etsi.org contains details of the meeting, the User Workshop and archives of previous meetings.

Participants at GSC-11 included the Australian Communications Industry Forum (ACIF), Association of Radio Industries and Businesses (ARIB) of Japan, the Alliance for Telecommunications Industry Solutions (ATIS) and Telecommunications Industry Association (TIA) from the United States, the China Communications Standards Association (CCSA), the European Telecommunications Standards Institute (ETSI), the ICT Standards Advisory Council of Canada (ISACC), the Telecommunications Technology Association (TTA) of Korea, the Telecommunication Technology Committee (TTC) of Japan, and the International Telecommunication Union (ITU).

Guests and observers included representatives from 3G Americas, American National Standards Institute (ANSI), CDMA Development Group (CDG), Consumer Electronics Association (CEA), European Conference of Postal and Telecommunications Administrations (CEPT), Inter-American Telecommunication Commission (CITEL), FLO Forum, GSM Association, International Electrotechnical Commission (IEC) Sector Board 4, IEEE, IETF, International Organization for Standardization (ISO) Security Advisory Group (ISO/SAG), JTC1, Open Mobile Alliance (OMA), Society of Cable and Telecommunications Engineers (SCTE), and Wireless World Initiative/Wireless World Research Forum (WWI/WWRF). <<

- Eric -



To: data_rox who wrote (585)7/11/2006 3:48:34 PM
From: Eric L  Respond to of 666
 
Recommended Reading on CDMA, CDMA2000 (and GSM and UMTS)

... and please note the very good freebie PDF in mid post.

There have been several excellent books published on GSM and UMTS evolution that have content appealing to non-engineering types as well as their engineering counterparts. With the exception of Dr. Lee's "Essential's of Wireless Communications" and Dave Mock's "The QUALCOMM Equation" the same can not really be said for CDMA, although there have been several rather technical works beyond my ken or need/desire to know published -- at least until lately.

There are now two CDMA books published in 2004 that look pretty darned good and modestly priced but I haven't yet read them. I have, however, ordered the 1st for a very reasonable $55 (new), and the 2nd for $59 (used but graded "like new") plus modest shipping in both cases.

The first is CDMA2000® Evolution: System Concepts and Design Principles, by Kamran Etemad ...

Hardcover: 384 pages
Publisher: Wiley-Interscience (September 15, 2004)
SBN: 0471461253
Amazon Price: $83.87

tinyurl.com

CDMA2000® Evolution Book Description

CDMA2000 Evolution: Concepts and Design Principles provides:

* A presentation of CDMA2000 technology from the fundamental concepts, architectures and protocols to the network engineering and planning principles.

* Comprehensive and up to date information about the IS2000 1x Releases A through D, including 1xEV-DV, as well as 1xEV-DO or IS856 Revisions 0 and A standards.

* A focus on network architecture, QoS, radio network performance and dimensioning as well as comparison with other 2.5G/3G systems.

* Examples, graphics and diagrams to simplify the learning process.

Throughout the book, the emphasis is on conceptual understanding of key techniques and protocols and their evolution from simpler legacy systems to the more advanced revisions recently made to these standards. <<

The first chapter of Kamran Etemad's book- Introduction To CDMA2000
Standards Evolution
- has been packaged in PDF format, and it is a freebie "Keeper."

media.wiley.com

I give the freebie 4.9 Stars even though (and because) it is only 10 pages, and free. <g>

On page 2 of the Introduction, Etemad devotes (only) 3 paragraphs to the formation of 3GPP and 3GPP2. The best reference on how 3GPP came to be and the ETSI reengineering (and establishment of 3GPP2 as a consequence) is Chapter 9 of this indispensable classic 5 Star gem titled GSM & UMTS: The Creation of Global Mobile Communications edited by Friedhelm Hillebrand, with contributions from 37 key players involved in the standardization work for GSM and UMTS, and one of the authors of that chapter, Karl Heinz Rosenbrock, is one of the individuals most responsible for uniting the global SSO/SDO's from ETSI and creating 3GPP, but the editor himself had a hand in that matter, ...

Hardcover: 496 pages
Publisher: John Wiley & Sons; Book & CD-Rom edition (December 14, 2001)
Language: English
ISBN: 0470843225
Best Price: $128
Amazon Price: $195.00

tinyurl.com

GSM & UMTS Book Description

>> GSM (Global System for Mobile communication) is the world market leading digital mobile wireless technology serving over 70% of all mobile digital users and is currently evolving into the UMTS (Universal Mobile Telecommunication System).

By describing the critical decisions and the phases of the development this key text explains how the GSM initiative became a success in Europe and how it evolved to the global mobile communication system. Initially the strategy and technical specifications were agreed for Europe and the subsequent evolution to a global solution was achieved by incorporating all non-European requirements and by inviting all committed parties worldwide to participate. The process started in 1982 and the first GSM networks went into commercial service in 1992. The first UMTS networks are expected in 2002 and the fourth generation discussions have begun.

* Presents a complete technical history of the development of GSM and the early evolution to UMTS

* Clarifies the creation of the initial GSM second generation system in CEPT GSM, the evolution to a generation 2.5 system in ETSI SMG and the evolution to the Third Generation (UMTS) in ETSI SMG and 3GPP

* Covers all of the services and system features together with the working methods and organisational aspects

GSM and UMTS provides an interesting and informative read and will appeal to everyone involved in the mobile communications market needing to know how GSM and UMTS technologies evolved.

The accompanying CD-ROM provides nearly 500 reference documents including reports of all standardization plenary meetings, strategy documents, key decisions, the GSM Memorandum of Understanding and the report of the UMTS Task Force. <<

EL Note: The above book has important information on how IP problems originated in 1991 because of ETSI's lack of an IP policy and the "Gentleman's Agreement" by major European players not to patent their IP, by dictate of the carriers, many of whom were national PTTs. What makes the book indispensable is the accompanying CD-ROM which backs up statements made in the text.

The 2nd book on CDMA is The cdma2000 System for Mobile Communications: 3G Wireless Evolution by Vieri Vanghi, Aleksandar Damnjanovic, and Branimir Vojcic ...

Hardcover: 544 pages
Publisher: Prentice Hall PTR (March 29, 2004)
ISBN: 0131416014
Amazon Price: $88.90

tinyurl.com

From the Back Cover of The cdma2000 System

>> The cdma2000 System in Depth: Architecture, Protocols, Design, and Operation

This is a complete guide to the architecture and operation of cdma2000 networks. Three leading experts begin by reviewing the theory of CDMA communications, then systematically discuss every component of a cdma2000 network, including radio access networks, packet core networks, mobile stations, and their reference points. The authors present in-depth coverage of the cdma2000 air interface protocols between mobile and base stations; physical layer design; media access control; layer 3 signaling; handoffs; power control; radio resource management for mixed voice and data services; radio access network performance; and end-to-end call flows for circuit switched voice, packet data, and concurrent services. Coverage includes:

* CDMA and spread spectrum fundamentals: modulation/demodulation, forward error correction, turbo coding, and diversity

* Applications and services, including conversational voice, Web browsing, file transfer, WAP, video streaming, and VoIP

* Evolution of integrated data and voice services (1xEV-DV)

* Handoff principles and types, including idle, access, soft, and hard handoffs

* Reverse and forward link power control principles, algorithms, and implementation aspects

* Algorithms and implementation aspects for radio resource management

* End-to-end network operations: location and state management, call processing, SMS, and more

This is an ideal reference for professionals designing or building cdma2000 infrastructure and mobile stations, operators deploying and managing cdma2000 networks, and any wireless communications engineer who wants a thorough understanding of cdma2000 technology. <<

The cdma2000 System Book Description

>> Preface: Spread spectrum communications techniques have been used in military applications since the 2nd World War but have found a widespread commercial use only in the last ten years or so. To cope with the accelerating demand for mobile communications in the early 1990s, the introduction of spread spectrum techniques in cellular communications afforded a bandwidth efficient digital technology that could accommodate, within a given wireless spectrum allocation, a larger population of mobile users than other analog or digital technologies.

Spread spectrum systems exploit the noise-like characteristics of the spread signal waveform to allow multiple simultaneous transmissions using a common bandwidth. This is accomplished by means of spreading codes that are unique to each user and have mutually low correlation so that the multiple access signals can be separated at the receiver by means of despreading. Due to the use of spreading codes to achieve multiple access capability, this technology was named code-division multiple access (CDMA). Several favorable properties of spread spectrum signals can be exploited in the context of CDMA.

--> Firstly, the wide-band characteristic of the spread signal enables to resolve and constructively combine the multipath components at the receiver, thus mitigating channel fading. Also, the wide-band nature of spread spectrum signals allows employing powerful forward error correction codes without the bandwidth expansion penalty that is incurred in narrow-band technologies. In the context of cellular CDMA, spread spectrum allows for universal frequency reuse, which increases overall network capacity and eliminates the task of frequency planning.

--> Finally, spread spectrum allows for soft handoff, a technique which improves performance at the cell boundary, and increases cell range and capacity. The first cellular CDMA system was pioneered by QUALCOMM Inc., whose efforts led to the adoption of the IS-95 CDMA standard by the Telecommunication Industry Association (TIA) in 1993. The IS-95 standard and its associated core network protocols are collectively known as cdmaOne(TM).

Since then, the ever increasing demand for bandwidth efficiency, higher data rates and new services has motivated the constant evolution of the CDMA standard. IS-95 was primarily designed for voice services and to support low speed data applications. The data capabilities have since then improved, achieving higher data rates with increased bandwidth efficiency. At the same time the support of voice services has also improved with the adoption of more efficient vocoders.

The milestones in the CDMA standards evolution are illustrated in CDMA air-interface standards evolution. An important milestone was achieved in 1999, when the IS-2000 CDMA standard (also referred to as CDMA 1X), developed under the auspices of standard development organizations of several countries, was approved by the International Telecommunication Union (ITU) within the IMT-2000 initiative, as one of the standards for the 3rd generation mobile communications.

Standards evolution exploited the flexibility afforded by CDMA in multiplexing multiple channels, which has allowed the adoption of revolutionary concepts without disrupting backward compatibility. Among them, the concept of fast forward link data rate adaptation with fast scheduling and hybrid ARQ was first introduced in IS-856, also referred to as High Rate Packet Data (HRPD), a CDMA system optimized for data only transmission that achieves very high forward link data rates and bandwidth efficiency. Similar concepts have been recently adopted in IS-2000-C, which allows for both circuit switched voice and high speed forward link data applications.

IS-2000-C is sometimes referred to as 1X Evolution for Data and Voice (1X EVDV). The IS-856 and the IS-2000 standards, together with the associated core network and service protocols, are collectively known as the cdma2000 standard. At the time of the completion of this manuscript, IS-2000 revision D and IS-856 revision A are being standardized. The main feature of the new revisions is efficient support for high speed reverse link packet data through hybrid ARQ operation.

The cdma2000, specifications comprise thousands of pages and pose a daunting challenge even to the experienced practitioners. More importantly, with the ever increasing number of radio channel configurations, functionalities and applications supported by cdma2000 specifications, the motivating CDMA concepts tend to become obscure. In light of the above, the aim of this book is twofold.

--> Firstly, it is to present how the principles of spread spectrum communication in general and CDMA in particular are applied to the cdma2000 standards.

--> Secondly, it is too navigate the reader through the maze of specifications and distill their fundamentals into a manageable, but still comprehensive description of cdma2000 1X.

This book approaches cdma2000 mainly from a radio access network perspective, and focuses on the mobile station and base station interoperability procedures as specified in the IS-2000-C revision of the standard. In addition, this book also describes network architecture and services, and how these services are realized, end-to-end, throughout the various network interfaces.

--> Chapter 1 introduces the main concepts of spread spectrum techniques applied to CDMA cellular systems.

--> Chapter 2 and 3 set the stage from a network perspective, describing the overall cdma2000 network architecture and the services it supports.

--> Chapter 4 describes the functions performed by the CDMA modem and summarizes the IS-2000-C physical layer protocol.

--> Chapter 5 and 6 describe the media access and signaling layer IS-2000-C protocols, respectively.

--> The following chapters, from Chapter 7 to Chapter 9, describe soft handoff, power control, and packet data transmission techniques both from a protocol and an implementation perspective, giving practical guidelines and examples on how to implement these functionalities.

--> Chapter 10 provides an analytical framework to estimate CDMA cell capacity and cell range, together with numerical examples that are useful to the practitioner.

--> Finally, Chapter 11 describes how services are realized, end-to-end, in the cdma2000 network.

Given its scope and depth, we believe this book to be not only an invaluable aid to those that approach CDMA systems for the first time, but also an useful reference to the practitioners, system designers, and network operators. The book content and its structure also lend itself to be used for specialized courses and as a secondary academic text for courses in mobile communication systems and CDMA. This leaves us with the pleasant task of acknowledging the contributions of the many individuals who reviewed this book. We would like to thank Alpaslan Savas, and our colleagues at QUALCOMM Inc., Baaziz Achour, Sanjeev Athalye, Tao Chen, Walid Hamdy, Duncan Ho, Jack Holtzman, John Ketchum, Jack Nasielski, Joe Odenwalder, Ragulan Sinnarajah, and Edward Tiedemann. Thanks to Jon Rayner for his contributions to the cover design. To all of the above we express our sincere thanks. We would also like to acknowledge the entire QUALCOMM team of engineers whose relentless efforts over past fifteen years have made CDMA the technology of choice for the present and future mobile systems. Last but not least, we are indebted to our families and soulmates for their support and patience during the many evenings and weekends we spent writing this book. <<

###

I'll add a similar bibliography of a few of my favs on GSM and UMTS and IPR in Mobile Comms one of these days.

Best,

- Eric -