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Some useful links to CDMA, IS-95, IS-707, cdma2000 and 1XRTT
resources.
Also see our GSM, GPRS and UMTS
sections.
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Latest CDMA Headlines:
ZDNet Symbian to ease app building for China Mobile
The Symbian Foundation and China's biggest mobile operator will provide a streamlined way for developers to submit apps to China Mobile's store and will promote the TD-SCDMA standard
FreshPatents.com Method and apparatus for improved channel estimation for communications signal processing
Teachings presented herein present a “whitening” channel estimation method and apparatus that produce high-quality net channel estimates for processing a received signal, such as a received CDMA signal. Processing includes forming an initial least squares problem (for medium channel estimates) using known pilot values and corresponding pilot observations for the...
CDMA News China Sold 14.46mn 2G Mobile Phones in Sep
Research Co., Ltd., a Chinese market research firm. The sales growth was boosted by an increase in the CDMA market. In detail, the nation achieved a CDMA mobile phone sales volume of 2.77 million in the month, accounting for about 20% of the total mobile
CDMA News First off Boost is iDEN and it is the only pa...
support high speed data, and is costing the company millions of dollars to maintain (seperate radios from the CDMA etc.) Instead Sprint spends nearly 800 million to buy out IPCS. What do they get out of that? The ability to market IDEN in the IPCS
CDMA News CDMA International Roaming Success Story
time when acquiring and retaining home subscribers is becoming more and more costly in the competitive domestic markets. CDMA operators, such as Hutchison Telecom, KDDI, SK Telecom, Shinsegi and Telstra, are taking the lead in tapping into these revenue
CDMA News Cdma touch pro2 custom roms now supported for sprint, verizon, telus.... (pocketnow.com via TechNews AM)
custom ROMs, unlocking new features, and exploring a whole new world behind Windows Mobile 6.5 on a CDMA handset, you can now. Thanks to the good folks over at
CDMA News CDMA Touch Pro2 has been SIM and ROM unlocked
What, CDMA phone has been SIM-unlocked, but CDMA is not using SIM cards so how it is possible? We are glad that you asked! Here is the answer: You run a program
CDMA News Why the iPhone Isn't Going Anywhere
without a new cellular radio. Greengart, however, notes that 'It is not that Apple can't build a CDMA version of the iPhone, it just chooses not to,' he said. While Apple certainly has the money, muscle and know-how to create a phone that has multiple
Members can view additional headlines.
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3Q09 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: Jan 2009 * * * * * * 3Q09 Cellular Subscriptions and Handsets Database This report provides a summary by bandwidth, technology, and region in pivot-tables for quick analysis of trends using a combination of subscriptions as well as handset shipments and revenues.
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)
-Five-year handset shipment and revenue forecasts by technology and region.
Published By: In-Stat
Date Published: Jan 2009 * * * * * *
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.
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| 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. |
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