Ultra Mobile Broadband

Ultra Mobile Broadband

UMB (Ultra Mobile Broadband) is the brand name for the project within 3GPP2 to improve the CDMA2000 mobile phone standard for next generation applications and requirements. The system is based upon Internet (TCP/IP) networking technologies running over a next generation radio system, with peak rates of up to 280 Mbit/s. Its designers intend for the system to be more efficient and capable of providing more services than the technologies it replaces. Commercialization is unlikely as Qualcomm, its main developer, 3GPP2 and major CDMA carriers are concentrating on LTE instead. [ [http://news.digitaltrends.com/news-article/15692/qualcomm-embraces-lte Qualcomm Embraces LTE - Mobile News - Digital Trends ] ]

To provide compatibility with the systems it replaces, UMB supports handoffs with other technologies including existing CDMA2000 1X and 1xEV-DO systems. However 3GPP2 added this functionality to LTE, allowing LTE to become the single upgrade path for all wireless networks.

According to the technology market research firm ABI Research, Ultra-Mobile Broadband might be "dead on arrival" [cite web | title = A Poor Market Outlook for Ultra Mobile Broadband (UMB) Says ABI Research, but Qualcomm's Future Still Secure | date = 2007 | url = http://www.businesswire.com/portal/site/home/index.jsp?epi_menuItemID=887566059a3aedb6efaaa9e27a808a0c&ndmViewId=news_view&ndmConfigId=1000017&newsId=20071228005150&newsLang=en] . No carrier has announced plans to adopt UMB, and most CDMA carriers in Australia, USA, China, Japan and Korea have already announced plans to adopt HSPA or LTE.


*OFDMA-based air interface
*Frequency Division Duplex
*Scalable bandwidth between 1.25-20 MHz (OFDMA systems are especially well suited for wider bandwidths larger than 5 MHz)
*Supports mixed cell sizes, e.g., macro-cellular, micro-cellular & pico-cellular.
*IP network architecture
*Supports flat, centralized and mixed topologies
*Data speeds over 275 Mbit/s downstream and over 75 Mbit/s upstream


*Significantly higher data rates & reduced latencies using FL advanced antenna techniques
**MIMO, SDMA and Beamforming
*Higher RL sector capacity with quasi-orthogonal reverse link
*Increased cell edge user data rates using adaptive interference management
**Dynamic fractional frequency reuse
**Distributed RL power control based on other cell interference
*Real time services enabled by fast seamless L1/L2 handoffs
**Independent RL & FL handoffs provide better airlink and handoff performance
*Power optimization through use of quick paging and semi-connected state
*Low-overhead signaling using flexible airlink resource management
*Fast access and request using RL CDMA control channels
*New scalable IP architecture supports inter-technology handoffs
**New handoff mechanisms support real-time services throughout the network and across different airlink technologies
*Fast acquisition and efficient multi-carrier operation through use of beacons
*Multi-carrier configuration supports incremental deployment & mix of low-complexity & wideband devices

Fourth-Generation Cellular Technology Benefits

UMB is intended to be a so-called fourth-generation technology. These technologies use a high bandwidth, low latency, underlying TCP/IP network with high level services such as voice built on top. While no 4G networks have been deployed yet, the much greater amount of bandwidth, and much lower latencies, should enable the use of various application types that have previously been impossible, while continuing to deliver high quality (or higher quality) voice services. The improved bandwidths of the network provided by more efficient technologies may also result in networks with better capacity.

UMB's use of OFDMA eliminates many of the disadvantages of the CDMA technology used by its predecessor, including the "breathing" phenomenon, the difficulty of adding capacity via microcells, and the fixed bandwidth sizes that limit the total bandwidth available to handsets.


External links

* [http://www.3gpp2.org/ 3GPP2] Standards and specifications
* [http://www.cdg.org/ CDMA Development Group (CDG)]

See also

*3GPP2, CDMA2000
*LTE - the predominant standard for 4G
*Flash-OFDM real mobility

Wikimedia Foundation. 2010.

Look at other dictionaries:

  • Mobile phone companies of India — The Mobile phone industry in India is covered in this article. Mobile phones are usually called mobile phones or cell phones in India. Contents 1 History 2 Mobile phone service operators 2.1 Handset Maker Companies of India …   Wikipedia

  • Mobile operating system — A mobile operating system, also known as a mobile OS, mobile software platform or a handheld operating system, is the operating system that controls a mobile device or information appliance similar in principle to an operating system such as… …   Wikipedia

  • Mobile IPTV — is a technology that enables users to transmit and receive multimedia traffic including television signal, video, audio, text and graphic services through IP based the wired and wireless networks with support for Quality of Service/QoE, security …   Wikipedia

  • Next Generation Mobile Networks — The logo of the NGMN Alliance The Next Generation Mobile Networks (NGMN) Alliance is a mobile telecommunications association of mobile operators, vendors, manufacturers and research institutes. It was founded by major mobile operators in 2006 as… …   Wikipedia

  • National broadband plans from around the world — Broadband is a term normally considered to be synonymous with a high speed connection to the internet. The term itself is technology neutral; broadband can be delived by a range of technologies including DSL, LTE or next generation access. This… …   Wikipedia

  • National Broadband Plan (United States) — Connecting America: The National Broadband Plan, unveiled March 16, 2010,[1] is a FCC (Federal Communications Commission) plan which deals with improving broadband Internet access throughout the United States. One goal was providing… …   Wikipedia

  • T-Mobile USA — T Mobile USA, Inc. T Mobile USA logo, 2006–present Type Private (subsidiary of T Mobile International AG) Indu …   Wikipedia

  • Microsoft Broadband Networking — was a series of computer networking hardware products marketed by Microsoft from 2002 through 2004. In July 2002 Microsoft product managers stated that home networking was too hard to use, and the company was developing products using the… …   Wikipedia

  • Windows Mobile — 6.5.3 Today Screen Company / developer Microsoft …   Wikipedia

  • Internet Explorer Mobile — The latest version of Internet Explorer Mobile in Windows Phone displaying Wikipedia zoomed completely out. Developer(s) Microsoft Operating system …   Wikipedia

Share the article and excerpts

Direct link
Do a right-click on the link above
and select “Copy Link”

We are using cookies for the best presentation of our site. Continuing to use this site, you agree with this.