HSDPA in W-CDMA

HSDPA in W-CDMA
Communication Articles

High Speed Downlink Packet Access HSDPA is a 3G packet-based data service in W-CDMA downlink with data transmission up to 8-10 Mbps (and 20 Mbps for MIMO systems) over a 5MHz bandwidth in WCDMA downlink. HSDPA allows networks based on Universal Mobile Telecommunications System (UMTS) to have higher data transfer speeds and capacity. HSDPA implementations includes Adaptive Modulation and Coding (AMC), Multiple-Input Multiple-Output (MIMO), Hybrid Automatic Request (HARQ), fast cell search, and advanced receiver design
Normal 0 false false false MicrosoftInternetExplorer4 st1\:*{behavior:url(#ieooui) } /* Style Definitions */ table.MsoNormalTable {mso-style-name:"Table Normal"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-parent:""; mso-padding-alt:0in 5.4pt 0in 5.4pt; mso-para-margin:0in; mso-para-margin-bottom:.0001pt; mso-pagination:widow-orphan; font-size:10.0pt; font-family:"Times New Roman"; mso-ansi-language:#0400; mso-fareast-language:#0400; mso-bidi-language:#0400;} High Speed Downlink Packet Access (HSDPA) is a 3G packet-based data service in W-CDMA downlink with data transmission up to 8-10 Mbps (and 20 Mbps for MIMO systems) over a 5MHz bandwidth in WCDMA downlink. HSDPA allows networks based on Universal Mobile Telecommunications System (UMTS) to have higher data transfer speeds and capacity. HSDPA implementations includes Adaptive Modulation and Coding (AMC), Multiple-Input Multiple-Output (MIMO), Hybrid Automatic Request (HARQ), fast cell search, and advanced receiver design.



In 3rd generation partnership project (3GPP) standards, Release 4 specifications provide efficient IP support enabling provision of services through an all-IP core network and Release 5 specifications focus on HSDPA to provide data rates up to approximately 10 Mbps to support packet-based multimedia services. MIMO systems are the work item in Release 6 specificationsFind Article, which will support even higher data transmission rates up to 20 Mbps. HSDPA is evolved from and backward compatible with Release 99 WCDMA systems.

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The 3G Impact: Life on the Fast Track

The 3G Impact: Life on the Fast Track
By Elizabeth Wills

Speed is the alternative of life. With the high-rising technology innovation, communication has become fast-paced and easier. And with the strong presence of 3G technology, growth in wireless communication has become a commonality across the globe. 3G mobile phones are the latest in the line to enable you to access faster global mobility.

3G system has made our lifestyle a lot more comfortable and exciting. 3G technology is mainly supported by Wideband CDMA, which is even faster than GSM and GPRS. 3G system works wonders for ardent users of mobile phones as its wide bandwidth provides high-speed connectivity for data transmission. Due to high level broadband frequency, the 3G-enabled mobile phones are bound to deliver high-end performance. The benefits of 3G are many. You can avail video streaming, email, Web browsing, and other mobile data services. With 3G mobile phones, you can get access to unlimited entertainment by downloading wallpapers, MP3 ring tones, current smash-hits, themes, exciting games, and lots more. Be it camera, music, games, or your business solutions, 3G technology accomplishes your multimedia comforts by catering to all your needs with fast pace and low cost.

The good news for mobile users is that now 3G has been uploaded in all the latest handsets from the leading manufacturers including Sony Ericsson, Samsung, LG, Nokia and Motorola. In addition, a new technology called HSDPA has been upgraded with the 3G system which works faster than 3G. The latest gadgets are well-equipped with power-packed features, enabling you to communicate and enjoy loads of fun. The 3G-compatible handsets allow you to balance your personal and professional fronts. Enjoy outstanding multimedia messaging services through email client, MMS, Instant messaging, etc. You can edit, send and receive your business files. Or share your photos, videos and music with friends. So get hold of the latest 3G mobile phone and experience hi-tech mobility.

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Mobile Entertainment Market Continues To Grow

Mobile Entertainment Market Continues To Grow
By James Marriot

Globally, the mobile entertainment market is set to grow tremendously and reach $47 billion by the year 2009.

It is expected that in coming five years the market for mobile entertainment will double. It is projected that the mobile market figures will reach $47 billion by the year 2009,which in 2006 was just $17 Billion. Gambling, games, TV, adult content, and infotainment all belong to the mobile market.

In 2006, North America accounted for 14% of the global market for mobile entertainment. The mobile entertainment market in South America is the smallest with only 3% of the market's share. However, it is expected that over the coming five years the market shall rise to a total of 5%. The total is estimated to be about 19% of the mobile entertainment market.

There are three technologies of US mobile market, namely TDMA, CDMA, & GSM. In Mexico, presently there are 44 Million mobile subscribers. Around 50% of the market is covered by GSM technologies, and the major goal is to turn the whole market with GSM technology, with the exception of Iusacell that has integrated 3G technologies in CDMA. SMS penetration is roughly 25% & growing.

According to the RNCOS report, "American Mobile Handset Market Analysis (2006-2009)", American Mobile market forecast for each country also gives an idea of the competitive landscape of the handset industry over the year 2009.

For further information about American Mobile Handset Market please read the report "American Mobile Handset Market Analysis (2006-2009)"
Published by RNCOS at http://www.rncos.com/Report/COM35.htm

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