Phones

Motorola Opus One rechristened as I1; Passes FCC

Remember the good old Opus One which first appeared on the scene as the first Android device running on iDEN. It passed FCC recently as ‘I1’ giving hope for a release soon on either on Sprint or Boost Mobile bars.

Motorola I1

To remind you the specs, Motorola I1 would boast of a Zeus XScale processor, 512MB Flash / 256MB of RAM, 3.1-inch HVGA capacitive touchscreen, 3-megapixel camera with autofocus and flash, accelerometer, proximity sensor, Wi-Fi and Bluetooth, a microSD card slot and Android location-based services, integrated into the iDEN GPS engine.

via Android Community

Those of you do not know about iDEN technology, we have a small introduction for you.

iDEN –

iDEN (Integrated Digital Enhanced Network) is a wireless technology from Motorola developed in 1994. It was designed for a variety of vertical market mobile business applications and has capabilities of a digital cellular telephone, two-way radio, alphanumeric pager, and data/fax modem in a single network. iDEN operates in the 800 MHz, 900MHz, and 1.5 GHz bands and is based on Time Division Multiple Access (TDMA) and GSM architecture.

Four-in-one iDEN technology allows business users to take advantage of advanced wireless technologies with one pocket-sized digital handset that combines two-way digital radio, digital wireless phone, alphanumeric messaging, and data/fax capabilities, leveraging Internet access technology.

Conventional trunking systems define a control or traffic channel by specifying a set of inbound and outbound frequencies to the user. The outbound frequency is the transmitter frequency of the base radio repeater, and the inbound frequency is the mobile radio transmitter frequency.

In iDEN system, a single inbound/outbound frequency pair is shared among six users by creation and use of six 15-millisecond time slots. Each user transmits and receives during (and only during) one of the time slot intervals, so that the transmission from any given mobile radio is a pulsed RF signal with a 1/6 or 1/3 duty cycle.

The base radio is able to transmit and receive during any of the six or three time slots. Each mobile radio user is assigned a unique channel designation, which is defined by both a carrier number and a time slot definition. The carrier number specifies the inbound/ outbound frequency pair.

iDEN uses M16-QAM modulation, a Motorola proprietary digital format utilizing M16-QAM modulation on four sub-carriers. This format involves both amplitude and phase modulation.

When first powered up, an iDEN mobile radio scans selected iDEN frequencies and locks on to the designated control channel. The control channel carries information continuously broadcast by the fixed end system regarding system identification and timing parameters for the mobile radio to use when it operates on the system. The control channel also defines the maximum transmit power that radios on the system may use.

In its operational mode, the mobile radio aligns its frequency and transmits timing to the outbound signal received from the fixed end system.

Each mobile radio in an iDEN system is identified by an International Mobile Station Identifier (IMSI), which is assigned to it when it is first placed in service and performs an initial registration with the fixed end system. When making its registration request, the mobile radio supplies its international mobile equipment identifier (IMEI) to the fixed end system. After determining the validity of the IMEI, the fixed end station assigns an IMSI to the subscriber radio.

iDEN technology gives you the freedom to go anywhere and still keeping track of important things in your business and your personal life as well.

via BSNL

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