| |
Some useful links to CDMA, IS-95, IS-707, cdma2000 and 1XRTT
resources.
Also see our GSM, GPRS and UMTS
sections.
|
|
Latest CDMA Headlines:
FreshPatents.com Method and communication system device for the generation or processing of ofdm symbols in a transmission system with spread user data
OFDM symbols are generated using data from one or more users or from one or more data sources represented on a number of sub-carriers. To inhibit multiple-access interference on application of the CDMA principle, the data are transformed in a data-source specific manner and only subsequently allocated to the sub-carriers,...
IEEE Throughput Optimal Distributed Power Control of Stochastic Wireless Networks
The maximum differential backlog (MDB), or “backpressure” control policy of Tassiulas and Ephremides has been shown to adaptively maximize the stable throughput of multihop wireless networks with random traffic arrivals and queueing. The practical implementation of the MDB policy in wireless networks with mutually interfering links, however, requires the development of distributed optimization algorithms. Within the context of code-division multiple-access (CDMA)-based multihop wireless netwo...
GPRS News AT4 Wireless launches LTE accredited testing lab in Taiwan
The testing laboratory obtained ISO 17025 accreditation this year and became GCF and PTCRB accredited laboratory for GSM, GPRS, EDGE, WCDMA and HSPA conformance testing, including Protocol and RF
GPRS News 3G Wireless Quick Guide-Designed for mobile wireless technology engineers and network...
Designed for mobile wireless technology engineers and network admins, wireless communication technology educators and students, this 3G mobile wireless technology quick guide covers all major 3G wireless technologies: UMTS and CDMA2000 architectures,
CDMA News SC asks GSM and CDMA operators, BSNL to submit records to TRAI
Extract not available.
CDMA News Motorola makes Android-based Ming phones official
and include the Beihai MT810 for China Mobile’s TD-SCDMA network, the Qilin XT806 for China Telecom’s CDMA network, and the Lucky A1680 for China Unicom’s WCDMA network. Each features Chinese handwriting support for their touchscreens. The MT-810
CDMA News Samsung Galaxy Tab turns up in Israel testing phone calls
CDMA version has its 15 minutes of fame By the time the Samsung Galaxy Tab officially launches at IFA in Berlin on Thursday 2 September it seems we will know virtually
CDMA News CDMA Wireless Share Could Boost Sprint Stock
quotes in this article:S, T, VZ, CMCSA, TWC Sprint's (S) stock could benefit significantly from higher CDMA (code division multiple access) wireless market share. Trefis members have created forecasts for two key drivers of Sprint Nextel's stock over the
CDMA News Samsung Galaxy Tab with CDMA Support in Works?
New leaked images of the highly anticipated tablet claim that the CDMA version of tablet is in the making While the web is abuzz with Samsung Galaxy Tab which is due to arrive later this week, we stumbled upon a different version
CDMA News Samsung Galaxy Tab in New Photos, Accessories Emerge
just emerged into the wild. Among these details, we can count the fact that there might be a CDMA flavor of Galaxy Tab under development over at Samsung. We already knew tha... ( read more
About our headline feed
|
|
South Korea - Telecoms, Mobile, Broadband and Forecasts South Korea is a country leading in technology use. The report covers trends and developments in telecommunications, mobile, Internet, broadband, digital TV and converging media including VoIP and IPTV developments. Subjects include:
Market and industry analyses, trends and developments;
Facts, figures and statistics;
Industry and regulatory issues;
Infrastructure;
Major players, revenues, subscribers, ARPU;
Internet, VoIP, IPTV;
Mobile voice and data markets;
Broadband (FttH, DSL, cable TV, WiBro);
Convergence and digital media;
Smart grids and smart cities;
Forecasts to 2015 in fixed-line, mobile, Internet and broadband subscribers.Researcher:- Lisa Hulme-JonesCurrent publication date:- July 2010 (16th Edition)Next publication date:- July 2011Published By: Paul Budde Communication Pty Ltd
Date Published: Nov 2010 * * * * * * 2Q10 Cellular Contracts, Deployments, and Subscriptions Database This report provides an in-depth look at cellular wireless technologies being deployed around the world. It provides summary data by bandwidth, technology, and region in pivot tables for quick analysis of trends using a combination of subscriptions, contract awards, and deployments. Furthermore, detailed data on contract awards for upcoming networks and new network deployments are provided in pivot tables for targeted views by country, service provider, and infrastructure vendor for in-depth analysis.
This report includes:
- Five-year subscriptions forecasts by wireless technology and region (CDMA, GSM/EDGE, CDMA EV-DO, TD-SCDMA, WCDMA/HSPA/HSPA+, and LTE)
- Contract awards and deployments by wireless technology, region, country, service provider, infrastructure vendor, date, availability, and value.
Published By: In-Stat
Date Published: Jul 2010 * * * * * *
Useful Links and Interesting Sites
| CDMA Development Group (CDG) |
CDMA White
Papers covering security, performance, migration, etc.
CDMA Technology CDMA
consistently provides better capacity for voice and data
communications than other commercial mobile technologies, allowing
more subscribers to connect at any given time, and it is the common
platform on which 3G technologies are built. CDMA is a "spread
spectrum" technology, allowing many users to occupy the same
time and frequency allocations in a given band/space. As its name
implies, CDMA assigns unique codes to each communication to
differentiate it from others in the same spectrum. In a world of
finite spectrum resources, CDMA enables many more people to share
the airwaves at the same time than do alternative technologies.
|
| CDMA Certification Forum |
The CDMA
Certification Forum (CCF) is a partnership of CDMA2000 vendors
and operators worldwide that has established and maintains a single
global device certification process. The CCF process allows quick
and affordable testing and certification of devices to meet
prescribed international standards and performance requirements. |
| cdma-solutions.com |
3G CDMA training courses from Basic to Advanced on cdma2000, CDMA
1xEV-DO, CDMA 1xEV-DV, Wireless IP. |
| CETECOM |
Test platforms for GSM, GPRS and W-CDMA. |
| LDPost |
All
About CDMA Today there are two major standards for cell phone
technology. CDMA and GSM. Almost all phones in the United States
operate on either of these networks. However, the average person
tends to be unfamiliar with these terms. Common cell phone service
providers like Verizon and Sprint use CDMA technology, while
carriers like T-Mobile, and Cingular operate on the GSM network.
Prepaid Cell Phones Premium
quality, honest, reliable calling cards. Prepaid mobile phones,
international long distance, toll free 800 numbers, office anywhere,
prepaid Internet, T1 Voice/Data lines. Reliable, easy to access
bilingual customer support. |
| Lucent |
CDMA
Products |
| CDMA University |
CDMA University
training is offered by the CDMA Development Group (CDG). Our
goal is to provide relevant CDMA technical training solutions by
leading experts in the field. Currently, we are associated with
Qualcomm to deliver courses that cover a broad range of topics
including foundational, advanced topics, network planning,
characterization and optimization. Our experts can customize
training to meet your specific needs |
| Qualcomm |
Network
Design and Optimization — White Papers |
| Nortel
Networks |
Code
Division Multiple Access (CDMA) technology is a driving force
behind wireless networks around the globe - according to the CDMA
development group (CDG) there were more than 202 million CDMA
subscribers worldwide at the end of March 2004. |
| Radio-Electronics.Com |
The
Basics of IS-95, cdmaOne IS-95 was the first CDMA system to gain
widespread use and is found widely in North America. Its brand name
is cdmaOne and the initial specification for the system was IS95A,
but its performance was later upgraded under IS-95B. It is this
later specification that is synonymous with cdmaOne. Apart from
voice the system is also able to carry data at rates up to 14.4 kbps
for IS-95A and 115 kbps for IS-95B. |
| RTX |
TD-SCDMA (12/02, PDF) China’s
chance TD-SCDMA (3G) mobile technology has enormous potential in the
largest mobile market in the world, with sales of over five million
handsets a month. China has no wish to be dependent on Western
technology, and this has led to investment in the new standard.
TD-SCDMA enables the rapid spread of telecommunications to thinly
populated areas, and the broad transmission bandwidth also provides
access to the Internet. |
| Spread Spectrum Scene Online |
Kizito Tshilumba
Kasengulu - About The Capacity of a DS Spread Spectrum CDMA Cellular
System (300Kb, PDF) explains and gives an expression for the
cell capacity of the uplink in the ideal case of perfect automatic
power control. Gives the reasons why we need strong power control,
its relation to the near-far problem and the cell capacity. Finally
gives a second expression for the cell capacity of the uplink.
Phil Flikkema's
(USF) Briefing - Introduction to Spread Spectrum (PDF)
Phil Flikkema's
(USF) Briefing - Overview of Modulation Techniques for Wireless
(PDF)
Prof. Randy H.
Katz' (UCB) Briefing - CS294-7: Digital Modulation (PDF)
Prof. Randy H.
Katz' (UCB) Briefing - CS294-7: Cellular Telephony (PDF)
Prof. Randy H.
Katz' (UCB) Briefing - CS294-7: Radio Propagation (PDF)
SSS Online's
Technical Briefings Archive |
| Dr. Bernd-Peter Paris |
Spread
Spectrum Multiple Access Article |
| Motorola |
IS-95
CDMA Cellular System Solution RF Switching, Receiver,
Transmitter, Synthesis, Baseband, Power |
| WAP Forum |
Where Does WAP fit in? WAP brings Internet content and advanced
services to digital cellular phones and other wireless terminals.
WAP is a global wireless protocol specification that works across
the following wireless network technology types: GSM (900, 1800
& 1900MHz), PDC, CDMA (IS-95 and/or IS-707), US-TDMA (IS-136),
iDEN (ESMR), DataTAC, Mobitex, CDPD, DECT, PHS, FLEX, and ReFLEX.
Applications using WAP are scaleable across a variety of transport
options and device types. A common standard offers potential
economies of scale, encouraging cellular phone and other device
manufacturers to invest in developing compatible products. With WAP,
cellular and other wireless network carriers and content providers
are able to develop new differentiated service offerings as a way to
attract new subscribers, while consumers benefit from more and
varied choices in mobile communications applications, advanced
services and Internet access. |
|
|
|
|
