Ȩ > Ç¥ÁØÈ °³¿ä > TTAÀÇ Ç¥ÁØÇöȲ
Ç¥ÁعøÈ£ | [ÆóÁö] TTAK.KO-06.0157/R1 | ±¸Ç¥ÁعøÈ£ | |||||||||
---|---|---|---|---|---|---|---|---|---|---|---|
Á¦°³Á¤ÀÏ | 2010-12-23 | ÃÑÆäÀÌÁö | 0 | ||||||||
ÇѱÛÇ¥Áظí | ÇÇÄÚij½ºÆ® ±Ô°Ý: Àú¼Ó ÇÇÄÚij½ºÆ® 1.0 | ||||||||||
¿µ¹®Ç¥Áظí | PicoCast Specification: Low Data Rate Picocast 1.0 | ||||||||||
Çѱ۳»¿ë¿ä¾à | ÇÇÄÚ³Ý(Piconet) ³»¿¡¼ÀÇ µð¿¥ºñ(DMB:digital multimedia broadcasting, µðÁöÅÐ ¸ÖƼ
¹Ìµð¾î ¹æ¼Û) ¼öÁØÀÇ ¹æ¼Û, ¼ÒÈ£(SOHO: small office home office, ¼Ò±Ô¸ð ¶Ç´Â °¡³»(Ê« Ò®) »ç¹«½Ç) ȯ°æ¿¡¼ÀÇ ¹«¼± Åë½Å, °¡Á¤ ÀÚµ¿È µî¿¡ ÇÊ¿äÇÑ Á¦¾î µîÀÇ À¶ÇÕµÈ ¼ºñ½º ¸¦ »ç¿ëÀÚ¿¡°Ô Á¦°øÇϱâ À§ÇÑ ÇÁ·ÎÅäÄÝÀ» Á¦½ÃÇÑ´Ù. ´ÜÀÏ Ç÷§ÆûÀ¸·Î Á¦¾î¿¡¼ ¿µ»ó ½ÅÈ£±îÁöÀÇ ³ÐÀº ÀÀ¿ë(application) ¹üÀ§¸¦ Áö¿øÇϱâ À§Çؼ ±Ô°ÝÈµÈ ÇÁ·¹ÀÓÀ» »ç¿ëÇÏ´Â µ¿ÀÏÇÑ ÇÁ·ÎÅäÄÝÀ» Àû¿ëÇÏ°í, »ç¿ëÀÚ°¡ ¹ÐÁýÇÑ È¯°æ ¿¡¼µµ »ç¿ëÀÚ °£ÀÇ °£¼·À» ¹èÁ¦ÇÒ ¼ö ÀÖµµ·Ï ÇÑ´Ù. ¶ÇÇÑ ½Ç½Ã°£ ¸ÖƼ¹Ìµð¾î ½ÅÈ£ Àü¼Û ¿¡ ÇÊ¿äÇÑ À¯¼± ¼öÁØÀÇ ¼ºñ½º Ç°Áú(QoS: quality of service)¿Í 20 msec À̳»ÀÇ ÂªÀº Áö ¿¬ (low latency), ±×¸®°í ¼¾¼ µî°ú °°Àº ÀÀ¿ë¿¡¼ ¿ä±¸ ÇÏ´Â ÀúÀü·Â(low power) Á¶°Ç µîÀ» ¸ðµÎ ¼ö¿ëÇÒ ¼ö ÀÖ´Â ±¸Á¶¸¦ Á¦½ÃÇÑ´Ù. À¶ÇÕ ÇÁ·ÎÅäÄÝÀ» À§ÇÑ ÇÁ·¹ÀÓ, ¹ÌµéÇÁ·¹ÀÓ, ±×¸®°í ½´ÆÛÇÁ·¹ÀÓÀ» Á¤ÀÇÇÑ´Ù. ¹ÌµéÇÁ·¹ÀÓ ÀÇ ±æÀÌ´Â °ÅÀÇ ¸ðµç ÀÀ¿ë(application)¿¡¼ Çã¿ëÇÏ´Â Áö¿¬(latency) ½Ã°£ÀÎ 16 msec·Î Á¤ÇÑ´Ù. ÇÁ·¹ÀÓÀº ÀÀ¿ëº°·Î ±æÀ̸¦ ´Ù¸£°Ô ÇÏ¿©, ÇÁ·¹ÀÓ ´ÜÀ§·Î´Â ¼·Î ´Ù¸¥ ÀÀ¿ë (application)À» Áö¿øÇÏÁö¸¸ Àü¼ÛµÇ´Â ¹ÌµéÇÁ·¹ÀÓÀÇ ÇüÅÂ¿Í Å©±â´Â ¸ðµç »ç¿ëÀÚ°¡ µ¿ÀÏÇÏ´Ù. 2.4GHz ´ëÀÇ ¾ÆÀÌ¿¡½º¾Ú(ISM: industry, science, medicine) ´ë¿ª¿¡¼ÀÇ ÁÖÆļö È£ÇÎ (Hopping) ¹æ½Ä°ú ÁÖÆļö ÇÒ´ç¿¡ ´ëÇØ Á¤ÀÇÇÑ´Ù. ¶ÇÇÑ ÁÖº¯ÀÇ ÇÇÄÚ³Ý(Piconet)µé°úÀÇ ±¸ºÐ°ú ÀÌµé °£ÀÇ °£¼·À» ¹èÁ¦ÇÏ°í º¸¾È¼ºÀ» ³ôÀÌ ±â À§ÇØ, ½ºÄµ ÄÚµå, º¸¾È ÄÚµå, ±×·ì Äڵ带 Á¤ÀÇÇÑ´Ù. |
||||||||||
¿µ¹®³»¿ë¿ä¾à | This standard specifies a protocol to provide users with the integrated services of
such as the broadcasting of DMB (digital multimedia broadcasting) quality, wireless communications tasks needed in the SOHO (small office home office) environment, and the controls required for home automation. To support the wide range of applications from control to video signals, this standard uses identical protocols using fixed frame formats, and provides a means to avoid interference between multiple users in the user-crowded environments. Further, the standard specifies a structure that can support the QoS of wire quality, low latency less than 20 ms, and low power consumption necessary for such as sensor applications. For the integration of protocols, the standard defines frame, middle-frame, and super-frame. The length of the middle-frame is fixed to 16 ms which is a tolerable latency in most applications. The length of the frames is variable such that the frames fit into the fixed-length middle-frame even though the applications vary. The format and length of the middle-frames are identical for all users. The standard defines the schemes for frequency hopping and allocation in the 2.4 GHz ISM (industry, science, medicine) band. In addition, the standard defines the scan code, security code, and group code to provide distinction and to avoid interference between nearby pico-nets. |
||||||||||
±¹Á¦Ç¥ÁØ | |||||||||||
°ü·ÃÆÄÀÏ | TTAS.KO-06.0157_R1.pdf | ||||||||||
Ç¥ÁØÀÌ·Â |
|