WiMedia Alliance .

• WiMedia Alliance

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Bluetooth Ultra-wideband

1 The high speed (AMP) feature of Bluetooth v3.0 was originally

intended for UWB, but the WiMedia Alliance, the body responsible for the flavor of UWB intended for Bluetooth, announced in March 2009 that it was disbanding, and ultimately UWB was

omitted from the Core v3.0 specification.

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Bluetooth Ultra-wideband

1 After the successful completion of the technology transfer, marketing

and related administrative items, the WiMedia Alliance will cease

operations.

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Wireless - Categories of wireless implementations, devices and standards

1 *Wireless sensor networks: ZigBee, EnOcean; Personal area networks,

Bluetooth, TransferJet, Ultra-wideband (UWB from WiMedia

Alliance).

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Wireless USB

1 Wireless USB was based on the (now defunct) WiMedia Alliance's ultra-

wideband (UWB) common radio platform, which is capable of sending 480 Mbit/s at distances up to and 110 Mbit/s at up to . It was designed to operate in the 3.1 to 10.6 Gigahertz|GHz frequency range, although local regulatory policies may

restrict the legal operating range for any given country.

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Wireless USB - Development

1 After the technology transfer the WiMedia Alliance ceased operations.[http://www.bluetooth.com/Bluetooth/Technology/Technology_Transfer/ ] In October 2009, the Bluetooth Special

Interest Group has dropped development of UWB as part of the

alternative MAC/PHY, Bluetooth 3.0/High Speed solution

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Extremely high frequency - Telecommunications

1 As reported in incisor.tv monthly magazine, the WiMedia Alliance is

looking at using the 60GHz range in their road

map.[http://www.incisor.tv/download.php?file=124july2008.pdf Incisor.tv]

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IEEE 802.15.4a - History

1 Direct Sequence UWB, which was promoted by the ZigBee Alliance, found its home with

TG4a, while Multi-Band OFDM UWB was adopted by the WiMedia Alliance which published ECMA-368 (ECMA is another

telecommunications standardization body that is similar to the

IEEE).[http://www.podnova.com/channel/122071/episode/14/ Part 5: Ultra Wideband Update: IEEE 802.15.4a and Ecma-368

Podcast]

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Orthogonal frequency-division multiplexing - Wireless

1 * The wireless personal area network (PAN) ultra-wideband (UWB) IEEE

802.15.3a implementation suggested by WiMedia Alliance.

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Orthogonal frequency-division multiplexing - Ultra-wideband

1 Ultra-wideband (UWB) wireless personal area network technology may also utilise OFDM, such as in Multiband OFDM (MB-

OFDM). This UWB specification is advocated by the WiMedia Alliance

(formerly by both the Multiband OFDM Alliance [MBOA] and the WiMedia

Alliance, but the two have now merged), and is one of the competing UWB radio

interfaces.

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WiMedia Alliance

1 The 'WiMedia Alliance' was a non-profit industry trade group that

promoted the adoption, regulation, standardization and multi-vendor interoperability of ultra-wideband

(UWB) technologies. It existed from about 2002 through 2009.

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WiMedia Alliance - History

1 The WiMedia Alliance developed reference

technical specifications including:

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WiMedia Alliance - History

1 WiMedia Alliance and MultiBand OFDM Alliance Special Interest Group

(MBOA-SIG, promoted by Intel) merged into a single organization in

2005. The merged group operated as the WiMedia Alliance.

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WiMedia Alliance - History

1 On March 16, 2009, the WiMedia Alliance announced technology transfer

agreements for WiMedia ultra-wideband (UWB) specifications. WiMedia

transferred all specifications, including work on future high speed and power

optimized implementations, to the Bluetooth Special Interest Group (SIG), Wireless USB Promoter Group and the

USB Implementers Forum.

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WiMedia Alliance - History

1 After the technology transfer, marketing and related administrative items, the WiMedia Alliance ceased

operations in 2010.[http://www.bluetooth.com/Bluetooth/Technology/Technology_Transfe

r/ Bluetooth.com]

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WiMedia Alliance - IEEE

1 The most commendable achievement of IEEE 802.15.3a was its consolidation of 23 Ultra wideband|UWB PHY specifications into two

proposals using: Multi-Band Orthogonal Frequency Division Multiplexing (MB-OFDM) UWB, supported by the WiMedia Alliance,

then adopted by the USB-IF for Wireless USB and by the Bluetooth SIG for high speed

Bluetooth, while the Direct Sequence - UWB (DS-UWB) approach, supported by the UWB

Forum, was abandoned.

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UWB Forum - History

1 That standardisation attempt failed due to contrasting approaches

between the WiMedia Alliance and UWB Forum. On January 19, 2006 IEEE 802.15.3a task group (TG3a) members voted to withdraw the

December 2002 project authorization request (PAR) that initiated the development of high data rate

wireless standards.https://store.theartofservice.com/the-wimedia-alliance-toolkit.html

UWB Forum - History

1 The IEEE 802.15.3a did consolidate 23 PHY (chip)|physical layer

specifications into two proposals: multi-band orthogonal frequency division multiplexing (MB-OFDM),

supported by the WiMedia Alliance, and direct sequence - UWB (DS-

UWB), supported by the UWB Forum.

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List of UWB channels

1 This List of Ultra-wideband (UWB) Channels describes the physical bands and TFC codes

defined in the WiMedia Alliance's PHY specification,[http://www.wimedia.org

/en/specs.asp?id=specs WiMedia Alliance downloadable MAC and PHY specifications] as well as their link to

the logical channels used in the higher layers such as the Wireless

USB driver.https://store.theartofservice.com/the-wimedia-alliance-toolkit.html

List of UWB channels - Spectrum Definition

1 Many countries have allocated spectrum for UWB use, with various restrictions and power output limits.

The standardized output level for UWB communications is The WiMedia Alliance has defined

fourteen 500-MHz bands to divide up the 3.1-10.6GHz spectrum allocated for Ultra-Wideband communications

in the U.S. in 2002.https://store.theartofservice.com/the-wimedia-alliance-toolkit.html

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