翻訳と辞書 |
high speed circuit switched data : FOLDOC | High Speed Circuit Switched Data (HSCSD) A planned feature of {GSM Phase 2} defining a standard for circuit switched data transmission over a GSM link at up to 57.6 (78.8?) kbps. This is achieved by concatenating up to four consecutive GSM {timeslots}, each of which is capable of 14.4 kbit/s. It uses multiplexing and compression or filtering. The following services toward the fixed network are supported: V.34 up to 28.8 kbps and {V.110} with rate adaptation up to 38.4 kbps. HSCSD is aimed at {mobile workstation} users. As it is circuit switched, it is suited to streaming applications such as video conferencing and multimedia. {Bursty} applications like electronic mail, are more suited to packet-switched data (as in GPRS). {Ericsson (http://ericsson.com/wireless/products/mobsys/gsm/subpages/wise/subpages/hscsd.shtml)}. {(http://gsmworld.com/)}. (1999-12-04)
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