{"id":5858,"date":"2025-06-10T00:00:00","date_gmt":"2025-06-10T00:00:00","guid":{"rendered":"https:\/\/lp.szlogic.cn\/glossary\/what-is-cpri-common-public-radio-interface\/"},"modified":"2026-06-22T09:29:01","modified_gmt":"2026-06-22T09:29:01","slug":"what-is-cpri-common-public-radio-interface","status":"publish","type":"post","link":"https:\/\/resourceslp.szlogic.cn\/vi\/glossary\/what-is-cpri-common-public-radio-interface","title":{"rendered":"CPRI (Giao di\u1ec7n v\u00f4 tuy\u1ebfn c\u00f4ng c\u1ed9ng chung) l\u00e0 g\u00ec?"},"content":{"rendered":"<p class=\"wp-block-paragraph\"><strong>Hi\u1ec3u v\u1ec1 Ti\u00eau chu\u1ea9n v\u00e0 C\u00e1c Gi\u1ea3i ph\u00e1p M\u00f4-\u0111un Quang c\u1ee7a LINK-PP<\/strong><\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-large\"><img fetchpriority=\"high\" decoding=\"async\" width=\"1312\" height=\"736\" src=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/3a1a1c5b7dec4d4487756c8079a670c1.webp\" alt=\"What Is CPRI (Common Public Radio Interface)?\" class=\"wp-image-5857\" srcset=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/3a1a1c5b7dec4d4487756c8079a670c1.webp 1312w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/3a1a1c5b7dec4d4487756c8079a670c1-300x168.webp 300w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/3a1a1c5b7dec4d4487756c8079a670c1-1024x574.webp 1024w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/3a1a1c5b7dec4d4487756c8079a670c1-768x431.webp 768w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/3a1a1c5b7dec4d4487756c8079a670c1-18x10.webp 18w\" sizes=\"(max-width: 1312px) 100vw, 1312px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Khi c\u00e1c m\u1ea1ng di \u0111\u1ed9ng ph\u00e1t tri\u1ec3n t\u1eeb 4G l\u00ean 5G, c\u01a1 s\u1edf h\u1ea1 t\u1ea7ng h\u1ed7 tr\u1ee3 ch\u00fang ph\u1ea3i tr\u1edf n\u00ean nhanh h\u01a1n, d\u1ec5 m\u1edf r\u1ed9ng h\u01a1n v\u00e0 hi\u1ec7u qu\u1ea3 h\u01a1n. M\u1ed9t trong nh\u1eefng c\u00f4ng ngh\u1ec7 then ch\u1ed1t th\u00fac \u0111\u1ea9y s\u1ef1 chuy\u1ec3n \u0111\u1ed5i n\u00e0y l\u00e0 <strong>Giao di\u1ec7n Radio C\u00f4ng c\u1ed9ng Chung (CPRI)<\/strong> \u2014 m\u1ed9t giao di\u1ec7n ti\u00eau chu\u1ea9n h\u00f3a k\u1ebft n\u1ed1i \u0111\u01a1n v\u1ecb x\u1eed l\u00fd b\u0103ng t\u1ea7n g\u1ed1c (baseband processing unit) v\u00e0 ph\u1ea7n c\u1ee9ng radio xa (remote radio hardware) trong c\u00e1c m\u1ea1ng kh\u00f4ng d\u00e2y.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Trong b\u00e0i \u0111\u0103ng blog n\u00e0y, ch\u00fang ta s\u1ebd t\u00ecm hi\u1ec3u CPRI l\u00e0 g\u00ec, c\u00e1ch so s\u00e1nh n\u00f3 v\u1edbi <strong>eCPRI<\/strong>, c\u00e1c thu\u1eadt ng\u1eef k\u1ef9 thu\u1eadt then ch\u1ed1t li\u00ean quan, v\u00e0 c\u00e1ch <strong>LINK-PP\u2019s<br> <\/strong><a target=\"_blank\" rel=\"\" href=\"https:\/\/www.l-p.com\/store-25432-optics-transceivers-sfp-modules.htm\"><strong>b\u1ed9 thu ph\u00e1t quang<\/strong><\/a> h\u1ed7 tr\u1ee3 v\u1eadn h\u00e0nh c\u00e1c m\u1ea1ng di \u0111\u1ed9ng th\u1ebf h\u1ec7 ti\u1ebfp theo.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" >CPRI L\u00e0 G\u00ec?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>CPRI (Giao di\u1ec7n v\u00f4 tuy\u1ebfn c\u00f4ng c\u1ed9ng chung)<\/strong> l\u00e0 m\u1ed9t giao th\u1ee9c truy\u1ec1n th\u00f4ng s\u1ed1 n\u1ed1i ti\u1ebfp t\u1ed1c \u0111\u1ed9 cao, \u0111\u1ecbnh ngh\u0129a giao di\u1ec7n gi\u1eefa:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p><strong>BBU (\u0110\u01a1n v\u1ecb b\u0103ng t\u1ea7n g\u1ed1c)<\/strong> \u2013 X\u1eed l\u00fd s\u1ed1 t\u00edn hi\u1ec7u b\u0103ng t\u1ea7n g\u1ed1c<\/p><\/li><li><p><strong>RRU \/ RRH (\u0110\u01a1n v\u1ecb radio xa \/ \u0110\u1ea7u thu ph\u00e1t radio xa)<\/strong> \u2013 Qu\u1ea3n l\u00fd vi\u1ec7c truy\u1ec1n v\u00e0 nh\u1eadn t\u00edn hi\u1ec7u radio t\u1ea1i tr\u1ea1m t\u1ebf b\u00e0o<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">M\u1ee5c \u0111\u00edch ch\u00ednh c\u1ee7a CPRI l\u00e0 cho ph\u00e9p <strong>t\u00e1ch bi\u1ec7t gi\u1eefa ph\u1ea7n c\u1ee9ng radio v\u00e0 x\u1eed l\u00fd b\u0103ng t\u1ea7n g\u1ed1c<\/strong>. \u0110i\u1ec1u n\u00e0y gi\u00fap tri\u1ec3n khai linh ho\u1ea1t h\u01a1n, v\u00ed d\u1ee5 nh\u01b0 \u0111\u1eb7t c\u00e1c BBU t\u1ea1i c\u00e1c v\u1ecb tr\u00ed t\u1eadp trung (C-RAN), trong khi \u0111\u1eb7t c\u00e1c RRU g\u1ea7n \u0103ng-ten tr\u00ean c\u1ed9t ho\u1eb7c m\u00e1i nh\u00e0.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00e1c k\u1ebft n\u1ed1i fronthaul CPRI th\u01b0\u1eddng \u0111\u01b0\u1ee3c tri\u1ec3n khai tr\u00ean c\u00e1p quang \u0111\u01a1n mode b\u1eb1ng c\u00e1ch s\u1eed d\u1ee5ng <a target=\"_blank\" rel=\"\" href=\"https:\/\/www.l-p.com\/store-26152-10-25-40g-100g-transceiver-modules.htm\">b\u1ed9 thu ph\u00e1t quang<\/a> (v\u00ed d\u1ee5 nh\u01b0 SFP ho\u1eb7c SFP+), cho ph\u00e9p truy\u1ec1n th\u00f4ng th\u00f4ng l\u01b0\u1ee3ng cao v\u00e0 \u0111\u1ed9 tr\u1ec5 th\u1ea5p. M\u1eb7c d\u00f9 m\u1ed9t s\u1ed1 m\u00f4-\u0111un quang n\u00e2ng cao c\u00f3 th\u1ec3 h\u1ed7 tr\u1ee3 kho\u1ea3ng c\u00e1ch l\u00ean t\u1edbi 40 km ho\u1eb7c h\u01a1n, nh\u01b0ng c\u00e1c tri\u1ec3n khai ti\u00eau chu\u1ea9n th\u01b0\u1eddng ho\u1ea1t \u0111\u1ed9ng trong ph\u1ea1m vi 10\u201320 km, t\u00f9y thu\u1ed9c v\u00e0o lo\u1ea1i b\u1ed9 thu ph\u00e1t, suy hao s\u1ee3i quang v\u00e0 c\u00e1c r\u00e0ng bu\u1ed9c v\u1ec1 t\u00ednh to\u00e0n v\u1eb9n t\u00edn hi\u1ec7u.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" >Nguy\u00ean L\u00fd Ho\u1ea1t \u0110\u1ed9ng c\u1ee7a CPRI<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" >Ki\u1ebfn tr\u00fac v\u00e0 C\u00e1c Th\u00e0nh Ph\u1ea7n<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Ki\u1ebfn tr\u00fac CPRI (Common Public Radio Interface) \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf nh\u1eb1m thi\u1ebft l\u1eadp k\u1ebft n\u1ed1i t\u1ed1c \u0111\u1ed9 cao gi\u1eefa c\u00e1c \u0111\u01a1n v\u1ecb b\u0103ng t\u1ea7n g\u1ed1c (BBU) v\u00e0 c\u00e1c \u0111\u01a1n v\u1ecb radio xa (RRU). Ki\u1ebfn tr\u00fac n\u00e0y tu\u00e2n theo c\u1ea5u tr\u00fac ph\u00e2n l\u1edbp nh\u1eb1m \u0111\u1ea3m b\u1ea3o truy\u1ec1n th\u00f4ng hi\u1ec7u qu\u1ea3 v\u00e0 \u0111\u1ed3ng b\u1ed9. M\u1ed7i l\u1edbp \u0111\u00f3ng m\u1ed9t vai tr\u00f2 c\u1ee5 th\u1ec3 trong vi\u1ec7c duy tr\u00ec t\u00ednh to\u00e0n v\u1eb9n c\u1ee7a li\u00ean k\u1ebft truy\u1ec1n th\u00f4ng.<\/p>\n\n\n\n<figure class=\"wp-block-table\">\n<table class=\"has-fixed-layout\">\n<colgroup><col style=\"min-width: 25px;\"\/><col style=\"min-width: 25px;\"\/><\/colgroup><tbody><tr><th colspan=\"1\" rowspan=\"1\"><p>Th\u00e0nh ph\u1ea7n\/L\u1edbp<\/p><\/th><th colspan=\"1\" rowspan=\"1\"><p>M\u00f4 t\u1ea3<\/p><\/th><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p>\u0110\u1eb7c t\u1ea3 CPRI<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>\u0110\u1ecbnh ngh\u0129a giao di\u1ec7n gi\u1eefa c\u00e1c \u0111\u01a1n v\u1ecb b\u0103ng t\u1ea7n g\u1ed1c (BBU) v\u00e0 c\u00e1c \u0111\u01a1n v\u1ecb radio xa (RRU).<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p>L\u1edbp 1<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>H\u1ed7 tr\u1ee3 c\u00e1c giao di\u1ec7n \u0111i\u1ec7n v\u00e0 quang, gi\u1ea3i quy\u1ebft v\u1ea5n \u0111\u1ec1 gh\u00e9p k\u00eanh ph\u00e2n chia theo th\u1eddi gian (TDM).<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p>T\u1ea7ng 2<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Cung c\u1ea5p t\u00ednh linh ho\u1ea1t v\u00e0 kh\u1ea3 n\u0103ng m\u1edf r\u1ed9ng cho li\u00ean k\u1ebft truy\u1ec1n th\u00f4ng.<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p>M\u00f4-\u0111un \u0110\u1ed3ng b\u1ed9<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Qu\u1ea3n l\u00fd \u0111\u1ed3ng b\u1ed9 h\u00f3a \u0111\u1ec3 c\u0103n ch\u1ec9nh khung v\u00e0 th\u1eddi gian.<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p>Ki\u1ebfn tr\u00fac m\u1ea1ng<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>H\u1ed7 tr\u1ee3 c\u00e1c c\u1ea5u h\u00ecnh \u0111i\u1ec3m-\u0111i\u1ec3m, sao, v\u00f2ng v\u00e0 chu\u1ed7i n\u1ed1i ti\u1ebfp (daisy chain).<\/p><\/td><\/tr><\/tbody>\n<\/table>\n<\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00e1c \u0111\u01a1n v\u1ecb b\u0103ng t\u1ea7n g\u1ed1c x\u1eed l\u00fd v\u00e0 qu\u1ea3n l\u00fd t\u00edn hi\u1ec7u b\u0103ng t\u1ea7n g\u1ed1c, trong khi c\u00e1c \u0111\u01a1n v\u1ecb radio xa x\u1eed l\u00fd t\u00edn hi\u1ec7u t\u1ea7n s\u1ed1 v\u00f4 tuy\u1ebfn. C\u00e1c th\u00e0nh ph\u1ea7n n\u00e0y k\u1ebft n\u1ed1i v\u1edbi nhau th\u00f4ng qua li\u00ean k\u1ebft CPRI, \u0111\u1ea3m b\u1ea3o trao \u0111\u1ed5i d\u1eef li\u1ec7u li\u1ec1n m\u1ea1ch. M\u1ed9t m\u00f4-\u0111un \u0111\u1ed3ng b\u1ed9 \u0111\u1ea3m b\u1ea3o \u0111\u1ed9 ch\u00ednh x\u00e1c v\u1ec1 th\u1eddi gian\u2014y\u1ebfu t\u1ed1 then ch\u1ed1t \u0111\u1ec3 duy tr\u00ec vi\u1ec7c truy\u1ec1n d\u1eef li\u1ec7u t\u1ed1c \u0111\u1ed9 cao. Ki\u1ebfn tr\u00fac n\u00e0y h\u1ed7 tr\u1ee3 nhi\u1ec1u d\u1ea1ng t\u00f4-p\u00f4 kh\u00e1c nhau, gi\u00fap b\u1ea1n \u0111i\u1ec1u ch\u1ec9nh h\u1ec7 th\u1ed1ng ph\u00f9 h\u1ee3p v\u1edbi c\u00e1c y\u00eau c\u1ea7u m\u1ea1ng kh\u00e1c nhau.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" >Ph\u01b0\u01a1ng Ph\u00e1p Truy\u1ec1n<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">CPRI s\u1eed d\u1ee5ng ph\u01b0\u01a1ng ph\u00e1p truy\u1ec1n chuy\u00ean d\u1ee5ng \u0111\u1ec3 v\u1eadn chuy\u1ec3n d\u1eef li\u1ec7u gi\u1eefa BBU v\u00e0 RRU. Ph\u01b0\u01a1ng ph\u00e1p n\u00e0y d\u1ef1a tr\u00ean lu\u1ed3ng m\u1eabu mi\u1ec1n th\u1eddi gian li\u00ean t\u1ee5c, \u0111\u1ea3m b\u1ea3o \u0111\u1ed9 tr\u1ec5 t\u1ed1i thi\u1ec3u. Tuy nhi\u00ean, n\u00f3 c\u0169ng \u0111\u00f2i h\u1ecfi b\u0103ng th\u00f4ng \u0111\u00e1ng k\u1ec3. V\u00ed d\u1ee5:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>Trong c\u1ea5u h\u00ecnh LTE MIMO 2\u00d72 \u0111i\u1ec3n h\u00ecnh v\u1edbi b\u0103ng th\u00f4ng 20 MHz, t\u1ed1c \u0111\u1ed9 \u0111\u01b0\u1eddng truy\u1ec1n CPRI t\u01b0\u01a1ng \u1ee9ng c\u00f3 th\u1ec3 \u0111\u1ea1t kho\u1ea3ng 2,4576 Gbit\/s. T\u1ed1c \u0111\u1ed9 cao n\u00e0y ph\u1ea3n \u00e1nh vi\u1ec7c truy\u1ec1n li\u00ean t\u1ee5c c\u00e1c m\u1eabu IQ mi\u1ec1n th\u1eddi gian, bao g\u1ed3m c\u1ea3 t\u00edn hi\u1ec7u \u0111i\u1ec1u khi\u1ec3n v\u00e0 t\u00edn hi\u1ec7u tham chi\u1ebfu\u2014not ch\u1ec9 d\u1eef li\u1ec7u ng\u01b0\u1eddi d\u00f9ng. M\u1eb7c d\u00f9 th\u00f4ng l\u01b0\u1ee3ng d\u1eef li\u1ec7u ng\u01b0\u1eddi d\u00f9ng hi\u1ec7u d\u1ee5ng c\u00f3 th\u1ec3 v\u00e0o kho\u1ea3ng 150 Mbit\/s trong m\u1ed9t s\u1ed1 tri\u1ec3n khai \u00f4 nh\u1ecf, \u0111i\u1ec1u n\u00e0y kh\u00f4ng h\u00e0m \u00fd thi\u1ebft k\u1ebf giao th\u1ee9c k\u00e9m hi\u1ec7u qu\u1ea3\u2014m\u00e0 ph\u1ea3n \u00e1nh c\u00e1c y\u00eau c\u1ea7u truy\u1ec1n t\u00edn hi\u1ec7u RF nghi\u00eam ng\u1eb7t v\u1ec1 th\u1eddi gian th\u1ef1c v\u00e0 \u0111\u1ed9 trung th\u1ef1c cao qua CPRI.<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Vi\u1ec7c CPRI ph\u1ee5 thu\u1ed9c v\u00e0o c\u00e1c li\u00ean k\u1ebft chuy\u00ean d\u1ee5ng cho t\u1eebng lu\u1ed3ng d\u1eef li\u1ec7u khi\u1ebfn vi\u1ec7c m\u1edf r\u1ed9ng quy m\u00f4 tr\u1edf n\u00ean t\u1ed1n k\u00e9m, \u0111\u1eb7c bi\u1ec7t khi c\u00f4ng ngh\u1ec7 di \u0111\u1ed9ng ti\u1ebfn b\u1ed9. CPRI n\u00e2ng cao (eCPRI) gi\u1ea3i quy\u1ebft v\u1ea5n \u0111\u1ec1 n\u00e0y b\u1eb1ng c\u00e1ch \u00e1p d\u1ee5ng c\u00e1ch ti\u1ebfp c\u1eadn d\u1ef1a tr\u00ean g\u00f3i tin. Ph\u01b0\u01a1ng ph\u00e1p n\u00e0y ch\u1ec9 g\u1eedi d\u1eef li\u1ec7u c\u1ea7n thi\u1ebft, t\u1ed1i \u01b0u h\u00f3a vi\u1ec7c s\u1eed d\u1ee5ng b\u0103ng th\u00f4ng v\u00e0 gi\u1ea3m chi ph\u00ed. Trong khi CPRI truy\u1ec1n th\u1ed1ng xu\u1ea5t s\u1eafc trong vi\u1ec7c cung c\u1ea5p k\u1ebft n\u1ed1i t\u1ed1c \u0111\u1ed9 cao v\u00e0 \u0111\u00e1ng tin c\u1eady, hi\u1ec7u qu\u1ea3 c\u1ee7a n\u00f3 suy gi\u1ea3m khi nhu c\u1ea7u d\u1eef li\u1ec7u t\u0103ng l\u00ean.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" >Vai tr\u00f2 trong C\u00e1c M\u1ea1ng Fronthaul<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Trong c\u00e1c m\u1ea1ng fronthaul, CPRI \u0111\u00f3ng vai tr\u00f2 x\u01b0\u01a1ng s\u1ed1ng cho vi\u1ec7c truy\u1ec1n th\u00f4ng gi\u1eefa \u0111\u01a1n v\u1ecb radio (RU) v\u00e0 \u0111\u01a1n v\u1ecb ph\u00e2n t\u00e1n (DU). N\u00f3 t\u1ea1o \u0111i\u1ec1u ki\u1ec7n trao \u0111\u1ed5i d\u1eef li\u1ec7u ng\u01b0\u1eddi d\u00f9ng, t\u00edn hi\u1ec7u \u0111i\u1ec1u khi\u1ec3n v\u00e0 th\u00f4ng tin \u0111\u1ed3ng b\u1ed9.<\/p>\n\n\n\n<figure class=\"wp-block-table\">\n<table class=\"has-fixed-layout\">\n<colgroup><col style=\"min-width: 25px;\"\/><col style=\"min-width: 25px;\"\/><\/colgroup><tbody><tr><th colspan=\"1\" rowspan=\"1\"><p>Ph\u00e1t hi\u1ec7n<\/p><\/th><th colspan=\"1\" rowspan=\"1\"><p>M\u00f4 t\u1ea3<\/p><\/th><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p>Vai tr\u00f2 c\u1ee7a CPRI<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>CPRI \u0111\u00f3ng vai tr\u00f2 l\u00e0 li\u00ean k\u1ebft t\u00edn hi\u1ec7u ch\u1ee7 y\u1ebfu gi\u1eefa RU v\u00e0 DU, t\u1ea1o \u0111i\u1ec1u ki\u1ec7n trao \u0111\u1ed5i nhi\u1ec1u lo\u1ea1i d\u1eef li\u1ec7u.<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p>V\u1ea5n \u0111\u1ec1 T\u01b0\u01a1ng th\u00edch<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>C\u00e1c th\u00e0nh ph\u1ea7n \u0111\u1eb7c th\u00f9 theo nh\u00e0 cung c\u1ea5p trong CPRI d\u1eabn \u0111\u1ebfn c\u00e1c th\u00e1ch th\u1ee9c v\u1ec1 kh\u1ea3 n\u0103ng t\u01b0\u01a1ng t\u00e1c gi\u1eefa c\u00e1c h\u1ec7 th\u1ed1ng kh\u00e1c nhau.<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p>Y\u00eau c\u1ea7u B\u0103ng th\u00f4ng<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Nhu c\u1ea7u b\u0103ng th\u00f4ng cao c\u1ee7a CPRI tr\u1edf n\u00ean nan gi\u1ea3i khi t\u1ed1c \u0111\u1ed9 5G t\u0103ng l\u00ean, \u0111\u00f2i h\u1ecfi chuy\u1ec3n sang c\u00e1c giao di\u1ec7n linh ho\u1ea1t h\u01a1n.<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p>Truy\u1ec1n t\u1ea3i Fronthaul<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>\u0110\u1ed9 d\u00e0i khung truy\u1ec1n t\u1ea3i t\u00ednh theo bit t\u0103ng l\u00ean c\u00f9ng v\u1edbi b\u0103ng th\u00f4ng, \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn \u0111\u1ed3ng b\u1ed9 h\u00f3a v\u00e0 c\u00e1c th\u1ecfa thu\u1eadn m\u1ee9c d\u1ecbch v\u1ee5 (SLA).<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p>Truy\u1ec1n t\u1ea3i Li\u00ean t\u1ee5c<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Vi\u1ec7c truy\u1ec1n t\u1ea3i li\u00ean t\u1ee5c c\u00e1c m\u1eabu mi\u1ec1n th\u1eddi gian h\u1ea1n ch\u1ebf l\u1ee3i \u00edch t\u1eeb gh\u00e9p k\u00eanh th\u1ed1ng k\u00ea, l\u00e0m \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn hi\u1ec7u su\u1ea5t m\u1ea1ng.<\/p><\/td><\/tr><\/tbody>\n<\/table>\n<\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">M\u1eb7c d\u00f9 CPRI \u0111\u00e3 \u0111\u00f3ng vai tr\u00f2 then ch\u1ed1t trong vi\u1ec7c cho ph\u00e9p truy\u1ec1n t\u1ea3i d\u1eef li\u1ec7u t\u1ed1c \u0111\u1ed9 cao, nh\u01b0ng nh\u1eefng h\u1ea1n ch\u1ebf c\u1ee7a n\u00f3 tr\u1edf n\u00ean r\u00f5 r\u00e0ng trong c\u00e1c m\u1ea1ng 5G. C\u00e1c y\u00eau c\u1ea7u b\u0103ng th\u00f4ng cao v\u00e0 thi\u1ebft k\u1ebf \u0111\u1eb7c th\u00f9 theo nh\u00e0 cung c\u1ea5p g\u00e2y ra nh\u1eefng th\u00e1ch th\u1ee9c v\u1ec1 kh\u1ea3 n\u0103ng t\u01b0\u01a1ng t\u00e1c v\u00e0 kh\u1ea3 n\u0103ng m\u1edf r\u1ed9ng. Do \u0111\u00f3, nhi\u1ec1u m\u1ea1ng \u0111ang chuy\u1ec3n sang s\u1eed d\u1ee5ng CPRI n\u00e2ng cao ho\u1eb7c c\u00e1c giao di\u1ec7n linh ho\u1ea1t kh\u00e1c \u0111\u1ec3 \u0111\u00e1p \u1ee9ng nhu c\u1ea7u c\u1ee7a vi\u1ec5n th\u00f4ng hi\u1ec7n \u0111\u1ea1i.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" >\u01afu \u0111i\u1ec3m c\u1ee7a CPRI<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">CPRI \u0111\u00e3 ch\u1ee9ng minh hi\u1ec7u qu\u1ea3 c\u1ee7a m\u00ecnh tr\u00ean nhi\u1ec1u th\u1ebf h\u1ec7 m\u1ea1ng kh\u00f4ng d\u00e2y. C\u00e1c \u01b0u \u0111i\u1ec3m ch\u00ednh bao g\u1ed3m:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p><strong>Ki\u1ebfn tr\u00fac linh ho\u1ea1t v\u00e0 c\u00f3 kh\u1ea3 n\u0103ng m\u1edf r\u1ed9ng<\/strong>: CPRI h\u1ed7 tr\u1ee3 nhi\u1ec1u c\u1ea5u h\u00ecnh tr\u1ea1m g\u1ed1c kh\u00e1c nhau, t\u1eeb \u00f4 t\u1ebf b\u00e0o macro \u0111\u1ebfn c\u00e1c \u00f4 t\u1ebf b\u00e0o nh\u1ecf ph\u00e2n t\u00e1n.<\/p><\/li><li><p>CPRI cung c\u1ea5p m\u1ed9t giao th\u1ee9c ti\u00eau chu\u1ea9n nh\u1eb1m t\u1ea1o \u0111i\u1ec1u ki\u1ec7n thu\u1eadn l\u1ee3i cho vi\u1ec7c t\u00edch h\u1ee3p gi\u1eefa <strong>\u0111\u01a1n v\u1ecb b\u0103ng t\u1ea7n c\u01a1 s\u1edf (BBU)<\/strong> and <strong>\u0111\u01a1n v\u1ecb v\u00f4 tuy\u1ebfn xa (RRU)<\/strong>. Tuy nhi\u00ean, do c\u00e1c tri\u1ec3n khai \u0111\u1eb7c th\u00f9 theo nh\u00e0 cung c\u1ea5p v\u00e0 s\u1ef1 kh\u00e1c bi\u1ec7t v\u1ec1 phi\u00ean b\u1ea3n, kh\u1ea3 n\u0103ng t\u01b0\u01a1ng t\u00e1c th\u1ef1c t\u1ebf c\u00f3 th\u1ec3 b\u1ecb gi\u1edbi h\u1ea1n. Trong c\u00e1c tri\u1ec3n khai \u0111a nh\u00e0 cung c\u1ea5p, s\u1ef1 kh\u00e1c bi\u1ec7t v\u1ec1 t\u1ed1c \u0111\u1ed9 \u0111\u01b0\u1eddng truy\u1ec1n, t\u00edn hi\u1ec7u \u0111i\u1ec1u khi\u1ec3n v\u00e0 h\u1ed7 tr\u1ee3 c\u00e1c t\u00f9y ch\u1ecdn CPRI c\u00f3 th\u1ec3 \u0111\u00f2i h\u1ecfi vi\u1ec7c x\u00e1c th\u1ef1c t\u00ednh t\u01b0\u01a1ng th\u00edch c\u1ea9n th\u1eadn ho\u1eb7c c\u00e1c gi\u1ea3i ph\u00e1p k\u1ef9 thu\u1eadt t\u00f9y ch\u1ec9nh.<\/p><\/li><li><p><strong>H\u1ec7 sinh th\u00e1i s\u1ea3n ph\u1ea9m phong ph\u00fa<\/strong>: Ti\u00eau chu\u1ea9n n\u00e0y cho ph\u00e9p l\u1ef1a ch\u1ecdn r\u1ed9ng r\u00e3i c\u00e1c th\u00e0nh ph\u1ea7n tr\u1ea1m g\u1ed1c v\u00e0 b\u1ed9 thu ph\u00e1t t\u01b0\u01a1ng th\u00edch.<\/p><\/li><li><p><strong>M\u1edf v\u00e0 mi\u1ec5n ph\u00ed truy c\u1eadp<\/strong>: C\u00e1c \u0111\u1eb7c t\u1ea3 CPRI \u0111\u01b0\u1ee3c c\u00f4ng b\u1ed1 c\u00f4ng khai v\u00e0 m\u1edf \u0111\u1ec3 m\u1ecdi ng\u01b0\u1eddi \u0111\u00f3ng g\u00f3p, th\u00fac \u0111\u1ea9y \u0111\u1ed5i m\u1edbi tr\u00ean to\u00e0n ng\u00e0nh.<\/p><\/li><li><p><strong>H\u1ed7 tr\u1ee3 nhi\u1ec1u ti\u00eau chu\u1ea9n kh\u00f4ng d\u00e2y<\/strong>: Bao g\u1ed3m <strong>GSM<\/strong>, <strong>WCDMA<\/strong>, <strong>LTE<\/strong>, v\u00e0 th\u1eadm ch\u00ed c\u1ea3 c\u00e1c ti\u00eau chu\u1ea9n <strong>5G<\/strong>.<\/p><\/li><li><p><strong>Ph\u00e1t tri\u1ec3n d\u1ef1a tr\u00ean c\u1ed9ng \u0111\u1ed3ng<\/strong>: B\u1ea5t k\u1ef3 ai c\u0169ng c\u00f3 th\u1ec3 \u0111\u1ec1 xu\u1ea5t c\u1eadp nh\u1eadt, \u0111\u1ea3m b\u1ea3o ti\u00eau chu\u1ea9n ti\u1ebfn h\u00f3a c\u00f9ng v\u1edbi nhu c\u1ea7u th\u1ecb tr\u01b0\u1eddng.<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00f9ng nhau, nh\u1eefng t\u00ednh n\u0103ng n\u00e0y khi\u1ebfn CPRI tr\u1edf th\u00e0nh m\u1ed9t ti\u00eau chu\u1ea9n giao di\u1ec7n \u0111\u00e3 \u0111\u01b0\u1ee3c ki\u1ec3m ch\u1ee9ng v\u00e0 \u0111\u00e1ng tin c\u1eady trong c\u01a1 s\u1edf h\u1ea1 t\u1ea7ng vi\u1ec5n th\u00f4ng to\u00e0n c\u1ea7u.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" >eCPRI l\u00e0 g\u00ec?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Khi c\u00e1c m\u1ea1ng di \u0111\u1ed9ng chuy\u1ec3n sang c\u00e1c ki\u1ebfn tr\u00fac \u0111i\u1ec7n to\u00e1n \u0111\u00e1m m\u00e2y v\u00e0 \u1ea3o h\u00f3a nh\u01b0 <strong>C-RAN<\/strong> and <strong>vRAN<\/strong>, m\u1ed9t giao di\u1ec7n ti\u00ean ti\u1ebfn h\u01a1n l\u00e0 c\u1ea7n thi\u1ebft. \u0110\u00f3 ch\u00ednh l\u00e0 <strong>eCPRI (CPRI n\u00e2ng cao)<\/strong> .<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">eCPRI gi\u1edbi thi\u1ec7u m\u1ed9t ki\u1ebfn tr\u00fac fronthaul linh ho\u1ea1t h\u01a1n, d\u1ef1a tr\u00ean Ethernet, gi\u00fap c\u1ea3i thi\u1ec7n \u0111\u00e1ng k\u1ec3 hi\u1ec7u su\u1ea5t s\u1eed d\u1ee5ng b\u0103ng th\u00f4ng v\u00e0 h\u1ed7 tr\u1ee3 c\u00e1c t\u00ednh n\u0103ng 5G ti\u00ean ti\u1ebfn nh\u01b0 ph\u00e2n chia m\u1ea1ng (network slicing) v\u00e0 m\u1ea1ng truy c\u1eadp v\u00f4 tuy\u1ebfn g\u1ed1c \u0111i\u1ec7n to\u00e1n \u0111\u00e1m m\u00e2y (cloud-native radio access networks \u2013 C-RAN\/vRAN). Tuy nhi\u00ean, s\u1ef1 linh ho\u1ea1t n\u00e0y \u0111i k\u00e8m v\u1edbi nh\u1eefng \u0111\u00e1nh \u0111\u1ed5i k\u1ef9 thu\u1eadt: eCPRI ph\u1ee5 thu\u1ed9c r\u1ea5t nhi\u1ec1u v\u00e0o \u0111\u1ed3ng b\u1ed9 h\u00f3a th\u1eddi gian ch\u00ednh x\u00e1c (th\u01b0\u1eddng th\u00f4ng qua IEEE 1588v2 PTP), \u0111\u1ed3ng th\u1eddi ph\u1ea3i duy tr\u00ec \u0111\u1ed9 tr\u1ec5 th\u1ea5p v\u00e0 \u0111\u1ed9 bi\u1ebfn thi\u00ean \u0111\u1ed9 tr\u1ec5 (jitter) th\u1ea5p tr\u00ean c\u00e1c m\u1ea1ng truy\u1ec1n t\u1ea3i chung. \u0110\u1ea3m b\u1ea3o hi\u1ec7u n\u0103ng x\u00e1c \u0111\u1ecbnh (deterministic performance) tr\u00ean c\u01a1 s\u1edf h\u1ea1 t\u1ea7ng d\u1ef1a tr\u00ean g\u00f3i tin v\u1eabn l\u00e0 m\u1ed9t th\u00e1ch th\u1ee9c trong tri\u1ec3n khai.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" >\ud83d\udd01 So s\u00e1nh: CPRI so v\u1edbi eCPRI<\/h3>\n\n\n\n<figure class=\"wp-block-table\">\n<table class=\"has-fixed-layout\">\n<colgroup><col style=\"min-width: 25px;\"\/><col style=\"min-width: 25px;\"\/><col style=\"min-width: 25px;\"\/><\/colgroup><tbody><tr><th colspan=\"1\" rowspan=\"1\"><p>\u0110\u1eb7c t\u00ednh<\/p><\/th><th colspan=\"1\" rowspan=\"1\"><p>CPRI<\/p><\/th><th colspan=\"1\" rowspan=\"1\"><p>eCPRI<\/p><\/th><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p><strong>M\u00f4i tr\u01b0\u1eddng truy\u1ec1n d\u1eabn<\/strong><\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>S\u1ee3i quang n\u1ed1i ti\u1ebfp<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Ethernet\/IP (Ethernet 10G\/25G)<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p><strong>Hi\u1ec7u su\u1ea5t s\u1eed d\u1ee5ng b\u0103ng th\u00f4ng<\/strong><\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Th\u1ea5p h\u01a1n (truy\u1ec1n to\u00e0n b\u1ed9 d\u1eef li\u1ec7u)<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Cao h\u01a1n (ch\u1ec9 truy\u1ec1n d\u1eef li\u1ec7u c\u1ea7n thi\u1ebft)<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p><strong>Ph\u00e2n chia m\u1ea1ng (Network Slicing)<\/strong><\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>\u274c Kh\u00f4ng h\u1ed7 tr\u1ee3<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>\u2705 H\u1ed7 tr\u1ee3 \u0111\u1ea7y \u0111\u1ee7<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p><strong>S\u1eb5n s\u00e0ng cho RAN \u0111i\u1ec7n to\u00e1n \u0111\u00e1m m\u00e2y \/ \u1ea3o h\u00f3a (Cloud\/Virtual RAN)<\/strong><\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>\u274c H\u1ea1n ch\u1ebf<br><\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>\u2705 T\u1ed1i \u01b0u cho C-RAN\/vRAN<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p><strong>Tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng \u0111i\u1ec3n h\u00ecnh<\/strong><\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>4G LTE, 5G s\u01a1 k\u1ef3<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>5G n\u00e2ng cao &amp; RAN t\u00e1ch r\u1eddi (disaggregated RAN)<\/p><\/td><\/tr><\/tbody>\n<\/table>\n<\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">eCPRI \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1eb7c bi\u1ec7t cho c\u00e1c tri\u1ec3n khai 5G hi\u1ec7n \u0111\u1ea1i y\u00eau c\u1ea7u ph\u00e2n b\u1ed5 t\u00e0i nguy\u00ean \u0111\u1ed9ng, <strong>ph\u00e2n chia m\u1ea1ng (network slicing)<\/strong>, v\u00e0 t\u00edch h\u1ee3p s\u00e2u h\u01a1n v\u1edbi c\u00e1c m\u1ea1ng \u1ea3o h\u00f3a.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" >Gi\u1ea3i th\u00edch c\u00e1c thu\u1eadt ng\u1eef ch\u00ednh<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p><strong>BBU (\u0110\u01a1n v\u1ecb b\u0103ng t\u1ea7n g\u1ed1c)<\/strong>: \u0110\u01a1n v\u1ecb t\u1eadp trung x\u1eed l\u00fd x\u1eed l\u00fd t\u00edn hi\u1ec7u, \u0111i\u1ec1u ch\u1ebf\/gi\u1ea3i \u0111i\u1ec1u ch\u1ebf v\u00e0 chuy\u1ec3n \u0111\u1ed5i d\u1eef li\u1ec7u.<\/p><\/li><li><p><strong>RRU (\u0110\u01a1n v\u1ecb v\u00f4 tuy\u1ebfn xa \u2013 Remote Radio Unit)<\/strong>: \u0110\u1ea7u v\u00f4 tuy\u1ebfn (radio head) \u0111\u01b0\u1ee3c tri\u1ec3n khai t\u1ea1i hi\u1ec7n tr\u01b0\u1eddng, k\u1ebft n\u1ed1i v\u1edbi BBU qua \u0111\u01b0\u1eddng fronthaul; x\u1eed l\u00fd t\u00edn hi\u1ec7u \u0103ng-ten.<\/p><\/li><li><p><strong>REC (\u0110i\u1ec1u khi\u1ec3n thi\u1ebft b\u1ecb v\u00f4 tuy\u1ebfn \u2013 Radio Equipment Control)<\/strong>: M\u1ed9t thu\u1eadt ng\u1eef kh\u00e1c c\u1ee7a BBU.<\/p><\/li><li><p><strong>RE (Thi\u1ebft b\u1ecb v\u00f4 tuy\u1ebfn \u2013 Radio Equipment)<\/strong>: M\u1ed9t thu\u1eadt ng\u1eef kh\u00e1c c\u1ee7a RRU.<\/p><\/li><li><p><strong>Fronthaul<\/strong>: \u0110\u01b0\u1eddng truy\u1ec1n gi\u1eefa BBU v\u00e0 RRU s\u1eed d\u1ee5ng s\u1ee3i quang v\u00e0 b\u1ed9 thu ph\u00e1t quang.<\/p><\/li><li><p><strong>CPRI 7.0<\/strong>: Phi\u00ean b\u1ea3n m\u1edbi nh\u1ea5t c\u1ee7a ti\u00eau chu\u1ea9n CPRI, cung c\u1ea5p kh\u1ea3 n\u0103ng \u0111\u1ed3ng b\u1ed9 h\u00f3a c\u1ea3i ti\u1ebfn v\u00e0 t\u1ed1c \u0111\u1ed9 d\u1eef li\u1ec7u cao h\u01a1n nh\u1eb1m h\u1ed7 tr\u1ee3 5G.<\/p><\/li><li><p><strong>Ph\u00e2n chia m\u1ea1ng (Network Slicing)<\/strong>: Ph\u01b0\u01a1ng ph\u00e1p chia t\u00e0i nguy\u00ean m\u1ea1ng th\u00e0nh nhi\u1ec1u m\u1ea1ng \u1ea3o, cho ph\u00e9p cung c\u1ea5p d\u1ecbch v\u1ee5 t\u00f9y ch\u1ec9nh theo ng\u01b0\u1eddi d\u00f9ng ho\u1eb7c \u1ee9ng d\u1ee5ng.<\/p><\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\" >M\u00f4-\u0111un quang LINK-PP cho CPRI v\u00e0 eCPRI<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u1ec3 \u0111\u00e1p \u1ee9ng nhu c\u1ea7u v\u1ec1 b\u0103ng th\u00f4ng v\u00e0 \u0111\u1ed9 tr\u1ec5 trong fronthaul di \u0111\u1ed9ng, <strong>LINK-PP<\/strong> cung c\u1ea5p lo\u1ea1t b\u1ed9 thu ph\u00e1t quang \u0111a d\u1ea1ng h\u1ed7 tr\u1ee3 c\u1ea3 hai <strong>CPRI<\/strong> and <strong>eCPRI<\/strong> giao th\u1ee9c. C\u00e1c m\u00f4-\u0111un n\u00e0y \u0111\u1ea3m b\u1ea3o hi\u1ec7u n\u0103ng, \u0111\u1ed9 \u1ed5n \u0111\u1ecbnh v\u00e0 \u0111\u1ed9 b\u1ec1n c\u1ea7n thi\u1ebft cho m\u00f4i tr\u01b0\u1eddng vi\u1ec5n th\u00f4ng c\u00f3 y\u00eau c\u1ea7u cao.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" >\ud83d\udd0d S\u1ea3n ph\u1ea9m n\u1ed5i b\u1eadt: LS-CW3110-40I<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\"><a target=\"_new\" rel=\"noopener\" class=\"\" href=\"https:\/\/www.l-p.com\/products\/482907.htm\">\ud83c\udf10 Xem trang s\u1ea3n ph\u1ea9m \u00bb<br>\u00bb<\/a><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt:<br><\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p><strong>25Gbps<\/strong>: 10 Gbps<br><\/p><\/li><li><p><strong>Kho\u1ea3ng c\u00e1ch truy\u1ec1n d\u1eabn<\/strong>: L\u00ean \u0111\u1ebfn 40 km tr\u00ean s\u1ee3i quang \u0111\u01a1n mode (SMF)<br><\/p><\/li><li><p><strong>H\u1ed7 tr\u1ee3 giao th\u1ee9c<\/strong>: Ti\u00eau chu\u1ea9n SFP+ MSA,<br>, <strong>CPRI, eCPRI,<br>,<\/strong> SFF-8431, SFF-8472, RoHS, ITU-T G.652<br><\/p><\/li><li><p><strong>D\u1ea3i nhi\u1ec7t \u0111\u1ed9 ho\u1ea1t \u0111\u1ed9ng<br><\/strong>: T\u1eeb -40\u00b0C \u0111\u1ebfn +85\u00b0C (c\u1ea5p c\u00f4ng nghi\u1ec7p)<br><\/p><\/li><li><p><strong>H\u1ec7 s\u1ed1 d\u1ea1ng<\/strong>: SFP+<br><\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Ph\u00f9 h\u1ee3p l\u00fd t\u01b0\u1edfng cho:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>Li\u00ean k\u1ebft fronthaul gi\u1eefa BBU\u2013RRU<br><\/p><\/li><li><p>Ki\u1ebfn tr\u00fac m\u1ea1ng v\u00f4 tuy\u1ebfn t\u1eadp trung (C-RAN)<br><\/p><\/li><li><p>Tri\u1ec3n khai s\u1ee3i quang \u0111\u00f4 th\u1ecb kho\u1ea3ng c\u00e1ch xa<br><\/p><\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\" >FAQ<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" >M\u1ee5c \u0111\u00edch ch\u00ednh c\u1ee7a CPRI l\u00e0 g\u00ec?<br><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">CPRI k\u1ebft n\u1ed1i c\u00e1c b\u1ed9 x\u1eed l\u00fd c\u01a1 s\u1edf b\u0103ng t\u1ea7n (BBU) v\u1edbi c\u00e1c b\u1ed9 x\u1eed l\u00fd v\u00f4 tuy\u1ebfn t\u1eeb xa (RRU). N\u00f3 \u0111\u1ea3m b\u1ea3o truy\u1ec1n th\u00f4ng t\u1ed1c \u0111\u1ed9 cao, \u0111\u1ed9 tr\u1ec5 th\u1ea5p trong c\u00e1c m\u1ea1ng kh\u00f4ng d\u00e2y, \u0111\u1eb7c bi\u1ec7t cho c\u00f4ng ngh\u1ec7 4G v\u00e0 5G.<br>.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" >CPRI kh\u00e1c eCPRI nh\u01b0 th\u1ebf n\u00e0o?<br><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">CPRI s\u1eed d\u1ee5ng c\u00e1c li\u00ean k\u1ebft chuy\u00ean d\u1ee5ng \u0111\u1ec3 truy\u1ec1n d\u1eef li\u1ec7u, trong khi eCPRI \u00e1p d\u1ee5ng ph\u01b0\u01a1ng th\u1ee9c d\u1ef1a tr\u00ean g\u00f3i tin. eCPRI t\u1ed1i \u01b0u h\u00f3a b\u0103ng th\u00f4ng v\u00e0 h\u1ed7 tr\u1ee3 ki\u1ebfn tr\u00fac \u1ea3o h\u00f3a, do \u0111\u00f3 r\u1ea5t ph\u00f9 h\u1ee3p cho m\u1ea1ng 5G.<br>.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" >CPRI c\u00f3 th\u1ec3 \u0111\u00e1p \u1ee9ng c\u00e1c y\u00eau c\u1ea7u 5G trong t\u01b0\u01a1ng lai kh\u00f4ng?<br><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00f3, nh\u01b0ng c\u00f3 h\u1ea1n ch\u1ebf. CPRI n\u00e2ng cao (eCPRI) mang l\u1ea1i kh\u1ea3 n\u0103ng m\u1edf r\u1ed9ng v\u00e0 hi\u1ec7u qu\u1ea3 t\u1ed1t h\u01a1n, gi\u1ea3i quy\u1ebft c\u00e1c y\u00eau c\u1ea7u v\u1ec1 t\u1ed1c \u0111\u1ed9 cao v\u00e0 \u0111\u1ed9 tr\u1ec5 th\u1ea5p c\u1ee7a m\u1ea1ng 5G.<br>.<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\"><p><strong>M\u1eb9o:<br><\/strong> H\u00e3y c\u00e2n nh\u1eafc n\u00e2ng c\u1ea5p l\u00ean eCPRI \u0111\u1ec3 c\u00f3 gi\u1ea3i ph\u00e1p tri\u1ec3n khai 5G ti\u1ebft ki\u1ec7m chi ph\u00ed v\u00e0 b\u1ec1n v\u1eefng trong t\u01b0\u01a1ng lai.<br>.<\/p><\/blockquote>\n\n\n\n<h2 class=\"wp-block-heading\" >Xem Th\u00eam<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\"><a target=\"_blank\" href=\"https:\/\/resourceslp.szlogic.cn\/vi\/knowledge-center\/fiber-patch-cords-networking-uses\/\">Tham gia c\u00f9ng ch\u00fang t\u00f4i trong C\u1ed9ng \u0111\u1ed3ng LINK-PP \u0111\u1ea7y s\u00f4i \u0111\u1ed9ng ngay h\u00f4m nay<\/a><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><a target=\"_blank\" href=\"https:\/\/resourceslp.szlogic.cn\/vi\/glossary\/what-is-pcba\/\">T\u00ecm hi\u1ec3u v\u1ec1 PCBA: Th\u00e0nh ph\u1ea7n l\u00f5i c\u1ee7a thi\u1ebft b\u1ecb \u0111i\u1ec7n t\u1eed hi\u1ec7n \u0111\u1ea1i<br><\/a><\/p>","protected":false},"excerpt":{"rendered":"<p>CPRI (Giao di\u1ec7n v\u00f4 tuy\u1ebfn c\u00f4ng c\u1ed9ng chung) k\u1ebft n\u1ed1i c\u00e1c \u0111\u01a1n v\u1ecb c\u01a1 s\u1edf b\u0103ng t\u1ea7n v\u1edbi c\u00e1c \u0111\u01a1n v\u1ecb v\u00f4 tuy\u1ebfn t\u1eeb xa, cho ph\u00e9p truy\u1ec1n th\u00f4ng t\u1ed1c \u0111\u1ed9 cao, \u0111\u1ed9 tr\u1ec5 th\u1ea5p trong m\u1ea1ng kh\u00f4ng d\u00e2y.<\/p>","protected":false},"author":1,"featured_media":5857,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[27],"tags":[26],"class_list":["post-5858","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-glossary","tag-optics-transceivers"],"blocksy_meta":[],"acf":[],"_links":{"self":[{"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/posts\/5858","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/comments?post=5858"}],"version-history":[{"count":5,"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/posts\/5858\/revisions"}],"predecessor-version":[{"id":11469,"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/posts\/5858\/revisions\/11469"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/media\/5857"}],"wp:attachment":[{"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/media?parent=5858"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/categories?post=5858"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/tags?post=5858"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}