IDEN

iDEN is a mobile communications technology, developed by Motorola, which provides its users the benefits of a trunked radio and a cellular telephone. Nextel is the largest US retailer of iDEN services. iDEN places more users in a given spectral space, compared to analog cellular systems, by using time division multiple access (TDMA). Six communication channels share a 25 kHz space; some competing technologies place only one channel in 12.5 kHz.

Data (such as paging and text messaging) and voice communications are supported by iDEN.

Nextel, in order to provide high data rates for Packet Data, is providing a mid next generation technology called WiDEN. WiDEN is an expansion on the current iDEN system, where instead of using a normal 25kHz channel for packet data, it will encompass 4 carriers (100kHz) into one channel. This will allow download speeds of 96kbps, which is comparable to the average CDMA 1x speeds from Sprint and Verizon.

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