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Ç¥ÁعøÈ£ TTAE.3G-22.053(R4-4.0.1) ±¸Ç¥ÁعøÈ£
Á¦°³Á¤ÀÏ 2002-10-28 ÃÑÆäÀÌÁö 13
ÇѱÛÇ¥Áظí IMT-2000 3GPP-TFO; ¼­ºñ½º ¼³¸í; 1´Ü°è;4.0.1
¿µ¹®Ç¥Áظí IMT-2000 3GPP-Tandem Free Operation (TFO); Service description; Stage 1;4.0.1
Çѱ۳»¿ë¿ä¾à º» Ç¥ÁØÀº TFOÀÇ 1´Ü°è ±â¼úÀ» ÇÏ°í ÀÖ´Ù
À½¼º Ç°ÁúÀÇ °³¼±À» ½ÇÇöÇϸç, MSC °£ÀÇ ¿ä±¸ Àü¼Û ´ë¿ªÆøÀ» °¨¼Ò½ÃÅ°±â À§ÇØ »ç¿ëµÉ ¼öµµ ÀÖ´Ù
º» ¹®¼­´Â ¹«¼±¿¡¼­ ¹«¼±À¸·ÎÀÇ À½¼º ÅëÈ­ ½Ã¿¡ À½¼º ÄÚµ¦ÀÌ ¹Ýº¹ÀûÀ¸·Î ¿¬°áµÇ´Â °ÍÀ» ¹æÁöÇÒ ¼ö ÀÖµµ·Ï ÇØÁÖ´Â TFO ±â´É¿¡ ´ëÇÑ 1´Ü°è ¼­ºñ½º ¼³¸íÀ» ÇÏ°í ÀÖ´Ù. ¶ÇÇÑ TFO¿Í ºÎ°¡¼­ºñ½º¿ÍÀÇ »óÈ£ÀÛ¿ë¿¡ ´ëÇؼ­µµ Á¤ÀÇÇÏ°í ÀÖ´Ù. (This document specifies the stage 1 description for the Tandem Free Operation (TFO) feature which provides the capability to avoid tandeming speech codecs in mobile to mobile speech calls. Also it defines the interactions between supplementary services and TFO.)
¿µ¹®³»¿ë¿ä¾à The present document specifies the stage 1 description for the Tandem Free Operation (TFO) feature which provides the capability to avoid tandeming speech codecs in mobile to mobile speech calls. The primary aim is to realise improvements in speech quality. The TFO mode of operation could also be used to reduce inter-Mobile services Switching Center (MSC) transmission bandwidth requirements.
In analogy with ITU-T Recommendations I.130 [1], Stage 1 is an overall service description, from the service subscriber's and user's standpoints, that views the network as a single entity which provides services to the user.
±¹Á¦Ç¥ÁØ 3GPP TS 22.053
°ü·ÃÆÄÀÏ TTAE.3G-22.053(R4-4.0.1).pdf TTAE.3G-22.053(R4-4.0.1).pdf            

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IMT-2000 3GPP-¸Á È®Àΰú ½Ã°£´ë ¼­ºñ½º ¼³¸í; 1´Ü°è;4.1.0
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IMT-2000 3GPP-À̵¿¼öÇàȯ°æ(MExE) ¼­ºñ½º ¼³¸í; 1´Ü°è;4.1.0