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Ç¥ÁعøÈ£ | TTAE.3G-23.153 | ±¸Ç¥ÁعøÈ£ | |
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Á¦°³Á¤ÀÏ | 2000-07-13 | ÃÑÆäÀÌÁö | 30 |
ÇѱÛÇ¥Áظí | IMT2000 3GPP - Out of Band Transcoder Á¦¾î ; 2´Ü°è | ||
¿µ¹®Ç¥Áظí | Out of Band Transcoder Control – Stage 2 | ||
Çѱ۳»¿ë¿ä¾à | À̵¿ÀüÈ ³×Æ®¿÷Àº ¼ºñ½º Á¦°øÀ» À§ÇØ ÄÚµ¦¿¡ Å©°Ô ÀÇÁ¸ÇÏ°í ÀÖ´Ù. ÄÚµ¦Àº ¹«¼± ¹× À¯¼±±¸°£ÀÇ ÀÚ¿øÀ» È¿À²ÀûÀ¸·Î »ç¿ëÇϱâ À§ÇØ À½¼º, µ¥ÀÌÅÍ, ¸ÖƼ¹Ìµð¾î¸¦ ¾ÐÃàÇϴµ¥ »ç¿ëµÈ´Ù. À½¼ºÀ» ÄÚµù¹æ½ÄÀ» º¯È¯½ÃÅ°¸é À½¼º Ç°ÁúÀ» ÀúÇϽÃÅ°¹Ç·Î, À̵¿ÀüÈ ½Ã½ºÅÛÀº »ç¿ëÇÏÁö ¾ÊÀ¸·Á°í ÇÏ°í ÀÖ´Ù. Çö µðÁöÅÐ À̵¿ÀüÈ ½Ã½ºÅÛÀº Á¡Â÷ ¸¹Àº Á¾·ùÀÇ ÄÚµ¦À» »ç¿ëÇÏ°í ÀÖÀ¸¸ç ÀÌ·Î ÀÎÇØ ³×Æ®¿÷³»¿¡¼ ÄÚµ¦º¯È¯±â¸¦ ÇÒ´çÇÏ°í UE³»¿¡ ÀûÀýÇÑ ÄÚµ¦À» ÇÒ´çÇϱâ À§Çؼ, ½Åȣó¸® ´Ü°è°¡ Á¤ÀǵǾú´Ù. ¶ÇÇÑ ÄÚµ¦ÀÎÁõ ±â´ÉÀº ÄÚµ¦ºÒÀÏÄ¡·Î ÀÎÇÑ ¹®Á¦¸¦ ÇØ°áÇϱâ À§Çؼ | ||
¿µ¹®³»¿ë¿ä¾à | Cellular networks depend heavily on codecs to provide their services. Codecs are necessary to compress speech, data, or multimedia in order to utilize efficiently the expensive bandwidth resources both in the radio interface and in the transmission networks.
Transcoding of speech significantly degrades quality and, therefore, cellular systems try to avoid it for mobile-to-mobile calls when both UEs and the network support a common codec. Digital cellular systems support an increasing number of codec type |
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±¹Á¦Ç¥ÁØ | 3GPP TS 23.153 | ||
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