iBurst (or HC-SDMA, High Capacity Spatial Division Multiple Access) is a wireless broadband technology developed by ArrayComm. It optimizes the use of its bandwidth with the help of smart antennas. Kyocera is the leading manufacturer of iBurst devices. iBurst (or HC-SDMA, High Capacity Spatial Division Multiple Access) is a wireless broadband technology developed by ArrayComm. ... Kyocera Corporation (京セラ, Kyō-Sera, also known as Kyoto Ceramics) TYO: 6971, (NYSE: KYO) is a Japanese company based in Kyoto, Japan. ...

iBurst is a mobile broadband wireless access system that was first developed by ArrayComm, and subsequently adopted as the High Capacity – Spatial Division Multiple Access (HC-SDMA) radio interface standard (ATIS-0700004-2005) by the Alliance of Telecommunications Industry Solutions (ATIS). The standard was prepared by ATIS’ Wireless Technology and Systems Committee’s (WTSC) Wireless Wideband Internet Access subcommittee and has been accepted as an American National Standard. The Atis were just one of the the original inhabitants of the of the Philippines before the arrival of the Malay in the 10th century and the Spanish in the 15th century. ...

The HC-SDMA interface provides wide-area broadband wireless data-connectivity for fixed, portable and mobile computing devices and appliances. The protocol is designed to be implemented with smart antenna array techniques to substantially improve the radio frequency (RF) coverage, capacity and performance for the system. In January 2006, the IEEE 802.20 Mobile Broadband Wireless Access Working Group adopted a technology proposal that includes the use of the HC-SDMA standard for the 625kHz Multi-Carrier Time Division Duplex (TDD) mode of the future IEEE 802.20 standard. A giant phased-array radar in Alaska In telecommunication, a phased array is a group of antennas in which the relative phases of the respective signals feeding the antennas are varied in such a way that the effective radiation pattern of the array is reinforced in a desired direction and... Rough plot of Earths atmospheric transmittance (or opacity) to various wavelengths of electromagnetic radiation, including radio waves. ... A kilohertz (kHz) is a unit of frequency equal to 1,000 hertz (1,000 cycles per second). ... TDD can stand for several things: telecommunications device for the deaf time division duplex test driven development The airport code for Trinidad, Bolivia This page concerning a three letter acronym is a disambiguation page — a navigational aid which lists other pages that might otherwise share the same title. ...

HC-SDMA is also being incorporated by ISO TC204 WG16 into its standards for use of wireless broadband systems in the continuous communications standards architecture, known as CALM, which ISO is developing for intelligent transport systems (ITS). ITS may include applications for public safety, congestion management during traffic incidents, automatic toll booths, and more. An official liaison has been established between WTSC and ISO TC204 WG16 for this purpose ISO has many meanings: Iso is the stem of the Latin transliteration of the Greek word ίσος (ísos, meaning equal). The iso- prefix in English derives from this and means equality or similarity. ... Although it is a common word, calm is most widely associated with author Paul Wilson. ... This is an article about the modern meaning of the term public safety. ...

Technology

The HC-SDMA interface operates on a similar premise as GSM or CDMA2000 for cellular phones, with hand-offs between HC-SDMA cells reportedly providing the user with a seamless wideband wireless experience even when moving at the speed of a car or train. Not to be confused with Get Some Mates The Global System for Mobile Communications (GSM) is the most popular standard for mobile phones in the world. ... CDMA2000 is a family of third-generation (3G) mobile telecommunications standards that use CDMA, a multiple access scheme for digital radio, to send voice, data, and signalling data (such as a dialed telephone number) between mobile phones and cell sites. ... Cellular redirects here. ... Wideband is a relative term used to describe a wide range of frequencies in a spectrum. ...

The protocol:

• specifies base station and client device RF characteristics, including output power levels, transmit frequencies and timing error, pulse shaping, in-band and out-of band spurious emissions, receiver sensitivity and selectivity;
• defines associated frame structures for the various burst types including standard uplink and downlink traffic, paging and broadcast burst types;
• specifies the modulation, forward error correction, interleaving and scrambling for various burst types;
• describes the various logical channels (broadcast, paging, random access, configuration and traffic channels) and their roles in establishing communication over the radio link; and
• specifies procedures for error recovery and retry.

The protocol also supports Layer 3 (L3) mechanisms for creating and controlling logical connections (sessions) between client device and base including registration, stream start, power control, handover, link adaptation, and stream closure, as well as L3 mechanisms for client device authentication and secure transmission on the data links. Currently deployed iBurst systems allow connectivity up to 1MBPS for each subscriber equipment. Apparently there will be future firmware upgrade possibilities to increase these speeds up to 4 Mbps, consistent with HC-SDMA protocol. Three access options are already commercially available using: The network layer is level three of the seven level OSI model. ...

• iBurst Desktop modem with USB and Ethernet ports (with external power supply)
• iBurst Portable USB modem (using USB power supply)
• iBurst Laptop modem (PCMCIA Card)

Currently iBurst is commercially available in four countries: South Africa, Australia, Kenya and Azerbaijan. A company from Canada is also looking to rollout the service. Note: USB may also mean upper sideband in radio. ... Note: USB may also mean upper sideband in radio. ... Portable Computer Cards (PC cards) are interchangeable peripherals designed to be inserted into laptop computers in order to enable extra hardware functions. ...

External links

• Official Kyocera website
• Arraycomm website
• ATIS press release for the HC-SDMA radio interface standard
• Third generation of adaptive antenna systems
• iBurst in action across Australia