A new trade association centered around UMTS TDD was announced at the 3GSM World Congress yesterday. The group, chartered by UMTS TDD spectrum licensees and infrastructure providers from around the world, says it will raise awareness of UMTS TDD, support technology development and information sharing among its members, and become a clearinghouse for information related to the technology.
UMTS TDD (Time Division Duplexing), also known as TD-CDMA, uses unpaired spectrum to provide broadband, wireless, wide-area data-only services; it is a sister specification to UMTS FDD (Frequency Division Duplexing), better known as WCDMA.
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