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Ç¥ÁعøÈ£ TTAE.ET-TR 102 021-3 v1.1.1 ±¸Ç¥ÁعøÈ£
Á¦°³Á¤ÀÏ 2012-12-21 ÃÑÆäÀÌÁö 24
ÇѱÛÇ¥Áظí TETRA »ç¿ëÀÚ ¿ä±¸»çÇ×; TETRA ¸±¸®½º 2; ÆÄÆ® 3: ÄÚµ¦
¿µ¹®Ç¥Áظí TETRA User Requirement Specification; TETRA Release 2.1; Part 3: Codec
Çѱ۳»¿ë¿ä¾à º» Ç¥ÁØÀº Å×Æ®¶ó(TETRA) ¸±¸®½º 2ÀÇ °í¼Ó µ¥ÀÌÅÍ¿¡ ´ëÇÑ »ç¿ëÀÚ ¿ä±¸ »çÇ× Áß
ÄÚÅØÀÇ °³¼±¿¡ ´ëÇÏ¿© Á¤ÀÇÇÏ¸ç ±× ÁÖ¿ä ³»¿ëÀº ´ÙÀ½°ú °°´Ù:
? Á¾´Ü°£ Áö¿¬ ¼º´ÉÀÇ °³¼±
• ±âÁ¸ÀÇ Å×Æ®¶ó ÄÚµ¦¿¡¼­ÀÇ À½¼º Ç°Áú °³¼±
• µ¿µî ÀÌ»óÀÇ ¹è°æ ÀâÀ½¿¡ ´ëÇÑ ³»¼º
• ÀÌÁß º¸ÄÚµù ¾øÀÌ GSM/UMTS°úÀÇ È£È¯
• ±âÁ¸ÀÇ Å×Æ®¶ó ÄÚµ¦°úÀÇ È£È¯
¿µ¹®³»¿ë¿ä¾à This standard provides the user requirements for enhancement of Codec. The main
requirements in such an enhancement are as follows:
• improved end-to-end delay performance;
• voice quality improvement over the existing TETRA codec;
• equal or better immunity to background noise;
• interworking with GSM/UMTS(no double vocoding);
• interoperability with the existing TETRA codec;
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°ü·ÃÆÄÀÏ TTAE.ET-TR 102 021-3 v1.1.1.zip_[1].zip TTAE.ET-TR 102 021-3 v1.1.1.zip_[1].zip            

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