TDtv combines IPWireless commercial UMTS TD-CDMA

TD-CDMA

TD-CDMA, an acronym for Time-division - CDMA, is a channel access method based on using spread spectrum across multiple time slots. It is shown that a mixture of TDMA and CDMA provides better quality of service for multimedia communications in terms of data throughput and voice/video...

 solution and 3GPP

3GPP

The 3rd Generation Partnership Project is a collaboration between groups of telecommunications associations, known as the Organizational Partners...

 Release 6 Multimedia Broadcast Multicast Service

Multimedia Broadcast Multicast Service

Multimedia Broadcast Multicast Services is a point-to-multipoint interface specification for existing and upcoming 3GPP cellular networks, which is designed to provide efficient delivery of broadcast and multicast services, both within a cell as well as within the core network...

 (MBMS) to deliver Mobile TV

Mobile TV

Mobile television usually means television watched on a small handheld device. It may be a pay TV service broadcast on mobile phone networks or received free-to-air via terrestrial television stations from either regular broadcast or a special mobile TV transmission format...

. TDtv operates in the universal unpaired 3G spectrum bands that are available worldwide at 1900 MHz and 2100 MHz. It allows UMTS operators to fully utilize their existing spectrum and base stations to offer mobile TV and multimedia packages without impacting other voice and data 3G services.