{"id":47947,"date":"2026-07-28T17:23:08","date_gmt":"2026-07-28T10:23:08","guid":{"rendered":"https:\/\/vinastech.vn\/?p=47947"},"modified":"2026-07-28T17:23:08","modified_gmt":"2026-07-28T10:23:08","slug":"thiet-ke-das-cho-sieu-san-van-dong-tu-phu-song-den-bai-toan-dung-luong-120-000-nguoi-dung","status":"publish","type":"post","link":"https:\/\/vinastech.vn\/thiet-ke-das-cho-sieu-san-van-dong-tu-phu-song-den-bai-toan-dung-luong-120-000-nguoi-dung\/","title":{"rendered":"Thi\u1ebft k\u1ebf DAS cho si\u00eau s\u00e2n v\u1eadn \u0111\u1ed9ng: T\u1eeb ph\u1ee7 s\u00f3ng \u0111\u1ebfn b\u00e0i to\u00e1n dung l\u01b0\u1ee3ng 120.000 ng\u01b0\u1eddi d\u00f9ng"},"content":{"rendered":"<p><strong>V\u00ec sao s\u00e2n v\u1eadn \u0111\u1ed9ng l\u00e0 b\u00e0i to\u00e1n kh\u00f3 nh\u1ea5t c\u1ee7a h\u1ec7 th\u1ed1ng DAS?<\/strong><\/p>\n<p>Trong l\u0129nh v\u1ef1c thi\u1ebft k\u1ebf m\u1ea1ng v\u00f4 tuy\u1ebfn trong nh\u00e0 (Indoor Wireless System), s\u00e2n v\u1eadn \u0111\u1ed9ng c\u00f3 s\u1ee9c ch\u1ee9a t\u1eeb 70.000 \u0111\u1ebfn 120.000 kh\u00e1n gi\u1ea3 \u0111\u01b0\u1ee3c xem l\u00e0 m\u1ed9t trong nh\u1eefng m\u00f4i tr\u01b0\u1eddng tri\u1ec3n khai Distributed Antenna System (DAS) ph\u1ee9c t\u1ea1p nh\u1ea5t. \u0110\u00e2y kh\u00f4ng c\u00f2n l\u00e0 b\u00e0i to\u00e1n m\u1edf r\u1ed9ng v\u00f9ng ph\u1ee7 s\u00f3ng m\u00e0 l\u00e0 b\u00e0i to\u00e1n t\u1ed1i \u01b0u dung l\u01b0\u1ee3ng, ki\u1ec3m so\u00e1t nhi\u1ec5u v\u00e0 duy tr\u00ec ch\u1ea5t l\u01b0\u1ee3ng d\u1ecbch v\u1ee5 trong \u0111i\u1ec1u ki\u1ec7n m\u1eadt \u0111\u1ed9 thu\u00ea bao c\u1ef1c cao.<\/p>\n<p>M\u1ed9t sai l\u1ea7m ph\u1ed5 bi\u1ebfn l\u00e0 \u0111\u00e1nh gi\u00e1 h\u1ec7 th\u1ed1ng d\u1ef1a tr\u00ean c\u01b0\u1eddng \u0111\u1ed9 t\u00edn hi\u1ec7u (RSRP). Th\u1ef1c t\u1ebf, trong c\u00e1c s\u1ef1 ki\u1ec7n l\u1edbn, ng\u01b0\u1eddi d\u00f9ng v\u1eabn c\u00f3 th\u1ec3 nh\u00ecn th\u1ea5y t\u00edn hi\u1ec7u \u0111\u1ea7y v\u1ea1ch nh\u01b0ng t\u1ed1c \u0111\u1ed9 truy c\u1eadp Internet gi\u1ea3m m\u1ea1nh, cu\u1ed9c g\u1ecdi VoLTE b\u1ecb gi\u00e1n \u0111o\u1ea1n ho\u1eb7c video livestream kh\u00f4ng th\u1ec3 truy\u1ec1n t\u1ea3i \u1ed5n \u0111\u1ecbnh. Nguy\u00ean nh\u00e2n ch\u1ee7 y\u1ebfu kh\u00f4ng ph\u1ea3i do thi\u1ebfu v\u00f9ng ph\u1ee7 m\u00e0 do t\u00e0i nguy\u00ean v\u00f4 tuy\u1ebfn, b\u0103ng th\u00f4ng v\u00e0 dung l\u01b0\u1ee3ng c\u1ee7a cell \u0111\u00e3 \u0111\u1ea1t gi\u1edbi h\u1ea1n.<\/p>\n<p>V\u00ec v\u1eady, vi\u1ec7c thi\u1ebft k\u1ebf DAS cho s\u00e2n v\u1eadn \u0111\u1ed9ng ph\u1ea3i l\u1ea5y <strong>Capacity-Driven Design<\/strong> l\u00e0m nguy\u00ean t\u1eafc c\u1ed1t l\u00f5i thay v\u00ec ch\u1ec9 t\u1eadp trung v\u00e0o v\u00f9ng ph\u1ee7 (Coverage-Driven Design).<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-medium wp-image-47948\" src=\"https:\/\/vinastech.vn\/wp-content\/uploads\/2026\/07\/CHI-TIET-B6-600x400.png\" alt=\"\" width=\"600\" height=\"400\" srcset=\"https:\/\/vinastech.vn\/wp-content\/uploads\/2026\/07\/CHI-TIET-B6-600x400.png 600w, https:\/\/vinastech.vn\/wp-content\/uploads\/2026\/07\/CHI-TIET-B6-1200x800.png 1200w, https:\/\/vinastech.vn\/wp-content\/uploads\/2026\/07\/CHI-TIET-B6-768x512.png 768w, https:\/\/vinastech.vn\/wp-content\/uploads\/2026\/07\/CHI-TIET-B6.png 1536w\" sizes=\"auto, (max-width: 600px) 100vw, 600px\" \/><\/p>\n<p><strong>Capacity Planning \u2013 B\u1eaft \u0111\u1ea7u t\u1eeb h\u00e0nh vi ng\u01b0\u1eddi d\u00f9ng<\/strong><\/p>\n<p>Qu\u00e1 tr\u00ecnh thi\u1ebft k\u1ebf c\u1ea7n b\u1eaft \u0111\u1ea7u b\u1eb1ng vi\u1ec7c d\u1ef1 b\u00e1o s\u1ed1 l\u01b0\u1ee3ng ng\u01b0\u1eddi d\u00f9ng \u0111\u1ed3ng th\u1eddi (Concurrent Users) thay v\u00ec t\u1ed5ng s\u1ee9c ch\u1ee9a c\u1ee7a s\u00e2n.<\/p>\n<p>C\u00e1c y\u1ebfu t\u1ed1 c\u1ea7n ph\u00e2n t\u00edch bao g\u1ed3m:<\/p>\n<ul>\n<li>S\u1ed1 l\u01b0\u1ee3ng kh\u00e1n gi\u1ea3 th\u1ef1c t\u1ebf theo t\u1eebng lo\u1ea1i s\u1ef1 ki\u1ec7n.<\/li>\n<li>T\u1ef7 l\u1ec7 thu\u00ea bao c\u1ee7a t\u1eebng nh\u00e0 m\u1ea1ng.<\/li>\n<li>T\u1ef7 l\u1ec7 thi\u1ebft b\u1ecb h\u1ed7 tr\u1ee3 5G.<\/li>\n<li>T\u1ef7 l\u1ec7 ng\u01b0\u1eddi d\u00f9ng ho\u1ea1t \u0111\u1ed9ng \u0111\u1ed3ng th\u1eddi.<\/li>\n<li>H\u00e0nh vi s\u1eed d\u1ee5ng d\u1eef li\u1ec7u theo t\u1eebng th\u1eddi \u0111i\u1ec3m.<\/li>\n<\/ul>\n<p>V\u00ed d\u1ee5, trong m\u1ed9t tr\u1eadn chung k\u1ebft b\u00f3ng \u0111\u00e1, l\u01b0u l\u01b0\u1ee3ng d\u1eef li\u1ec7u th\u01b0\u1eddng t\u0103ng \u0111\u1ed9t bi\u1ebfn khi:<\/p>\n<ul>\n<li>Kh\u00e1n gi\u1ea3 v\u00e0o s\u00e2n.<\/li>\n<li>Tr\u01b0\u1edbc gi\u1edd thi \u0111\u1ea5u.<\/li>\n<li>Sau m\u1ed7i b\u00e0n th\u1eafng.<\/li>\n<li>Gi\u1eefa hi\u1ec7p.<\/li>\n<li>Sau khi tr\u1eadn \u0111\u1ea5u k\u1ebft th\u00fac.<\/li>\n<\/ul>\n<p>\u1ede c\u00e1c bu\u1ed5i h\u00f2a nh\u1ea1c ho\u1eb7c concert qu\u1ed1c t\u1ebf, nhu c\u1ea7u livestream, t\u1ea3i video 4K, chia s\u1ebb m\u1ea1ng x\u00e3 h\u1ed9i v\u00e0 g\u1ecdi video c\u00f3 th\u1ec3 t\u1ea1o ra l\u01b0u l\u01b0\u1ee3ng l\u1edbn h\u01a1n nhi\u1ec1u so v\u1edbi m\u1ed9t tr\u1eadn \u0111\u1ea5u th\u1ec3 thao.<\/p>\n<p>Do \u0111\u00f3, m\u00f4 h\u00ecnh d\u1ef1 b\u00e1o l\u01b0u l\u01b0\u1ee3ng ph\u1ea3i d\u1ef1a tr\u00ean k\u1ecbch b\u1ea3n s\u1eed d\u1ee5ng th\u1ef1c t\u1ebf thay v\u00ec c\u00e1c gi\u00e1 tr\u1ecb trung b\u00ecnh.<\/p>\n<p><strong>Ph\u00e2n t\u00edch l\u01b0u l\u01b0\u1ee3ng d\u1eef li\u1ec7u<\/strong><\/p>\n<p>Sau khi x\u00e1c \u0111\u1ecbnh s\u1ed1 l\u01b0\u1ee3ng ng\u01b0\u1eddi d\u00f9ng \u0111\u1ed3ng th\u1eddi, b\u01b0\u1edbc ti\u1ebfp theo l\u00e0 x\u00e2y d\u1ef1ng m\u00f4 h\u00ecnh l\u01b0u l\u01b0\u1ee3ng (Traffic Model).<\/p>\n<p>C\u00e1c d\u1ecbch v\u1ee5 c\u1ea7n \u0111\u01b0\u1ee3c t\u00ednh to\u00e1n ri\u00eang bi\u1ec7t g\u1ed3m:<\/p>\n<ul>\n<li>Download d\u1eef li\u1ec7u.<\/li>\n<li>Upload d\u1eef li\u1ec7u.<\/li>\n<li>Livestream video.<\/li>\n<li>Video Call.<\/li>\n<li>M\u1ea1ng x\u00e3 h\u1ed9i.<\/li>\n<li>OTT Messaging.<\/li>\n<li>VoLTE.<\/li>\n<li>VoNR.<\/li>\n<li>Truy\u1ec1n d\u1eef li\u1ec7u IoT.<\/li>\n<li>H\u1ec7 th\u1ed1ng POS v\u00e0 b\u00e1n v\u00e9 \u0111i\u1ec7n t\u1eed.<\/li>\n<\/ul>\n<p>T\u1eeb \u0111\u00f3 x\u00e1c \u0111\u1ecbnh:<\/p>\n<ul>\n<li>Peak Throughput.<\/li>\n<li>Busy Hour Traffic.<\/li>\n<li>Average User Throughput.<\/li>\n<li>Cell Throughput Requirement.<\/li>\n<li>Backhaul Requirement.<\/li>\n<\/ul>\n<p>C\u00e1c ch\u1ec9 s\u1ed1 n\u00e0y l\u00e0 c\u01a1 s\u1edf \u0111\u1ec3 l\u1ef1a ch\u1ecdn s\u1ed1 l\u01b0\u1ee3ng radio, b\u0103ng t\u1ea7n, c\u1ea5u h\u00ecnh MIMO v\u00e0 dung l\u01b0\u1ee3ng truy\u1ec1n d\u1eabn.<\/p>\n<p><strong>Ph\u00e2n chia sector theo dung l\u01b0\u1ee3ng<\/strong><\/p>\n<p>M\u1ed9t sai l\u1ea7m th\u01b0\u1eddng g\u1eb7p l\u00e0 b\u1ed1 tr\u00ed m\u1ed7i kh\u00e1n \u0111\u00e0i b\u1eb1ng m\u1ed9t sector l\u1edbn.<\/p>\n<p>Trong th\u1ef1c t\u1ebf, c\u00e1c kh\u00e1n \u0111\u00e0i c\u1ea7n \u0111\u01b0\u1ee3c chia th\u00e0nh nhi\u1ec1u sector nh\u1ecf nh\u1eb1m:<\/p>\n<ul>\n<li>Gi\u1ea3m s\u1ed1 l\u01b0\u1ee3ng thu\u00ea bao tr\u00ean m\u1ed7i cell.<\/li>\n<li>T\u0103ng kh\u1ea3 n\u0103ng t\u00e1i s\u1eed d\u1ee5ng t\u1ea7n s\u1ed1.<\/li>\n<li>N\u00e2ng cao hi\u1ec7u su\u1ea5t ph\u1ed5 t\u1ea7n.<\/li>\n<li>Gi\u1ea3m m\u1ee9c nhi\u1ec5u gi\u1eefa c\u00e1c v\u00f9ng ph\u1ee7.<\/li>\n<\/ul>\n<p>Vi\u1ec7c ph\u00e2n chia sector ph\u1ea3i c\u0103n c\u1ee9 v\u00e0o:<\/p>\n<ul>\n<li>G\u00f3c ph\u1ee7 anten.<\/li>\n<li>H\u01b0\u1edbng ng\u1ed3i c\u1ee7a kh\u00e1n gi\u1ea3.<\/li>\n<li>G\u00f3c nghi\u00eang kh\u00e1n \u0111\u00e0i.<\/li>\n<li>Kho\u1ea3ng c\u00e1ch gi\u1eefa c\u00e1c h\u00e0ng gh\u1ebf.<\/li>\n<li>M\u1eadt \u0111\u1ed9 ng\u01b0\u1eddi s\u1eed d\u1ee5ng.<\/li>\n<\/ul>\n<p>M\u1ed7i sector c\u1ea7n \u0111\u01b0\u1ee3c t\u1ed1i \u01b0u \u0111\u1ed9c l\u1eadp \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o t\u1ea3i \u0111\u01b0\u1ee3c ph\u00e2n b\u1ed1 \u0111\u1ed3ng \u0111\u1ec1u trong su\u1ed1t th\u1eddi gian di\u1ec5n ra s\u1ef1 ki\u1ec7n.<\/p>\n<p><strong>Thi\u1ebft k\u1ebf v\u00f9ng ph\u1ee7 theo t\u1eebng khu ch\u1ee9c n\u0103ng<\/strong><\/p>\n<p>Kh\u00f4ng ph\u1ea3i m\u1ecdi khu v\u1ef1c trong s\u00e2n v\u1eadn \u0111\u1ed9ng \u0111\u1ec1u c\u00f3 c\u00f9ng y\u00eau c\u1ea7u v\u1ec1 dung l\u01b0\u1ee3ng.<\/p>\n<p>H\u1ec7 th\u1ed1ng DAS c\u1ea7n \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf ri\u00eang cho t\u1eebng khu v\u1ef1c:<\/p>\n<p><strong>Kh\u00e1n \u0111\u00e0i ph\u1ed5 th\u00f4ng<\/strong><\/p>\n<p>\u0110\u00e2y l\u00e0 khu v\u1ef1c c\u00f3 m\u1eadt \u0111\u1ed9 thu\u00ea bao l\u1edbn nh\u1ea5t v\u00e0 th\u01b0\u1eddng chi\u1ebfm ph\u1ea7n l\u1edbn t\u1ed5ng l\u01b0u l\u01b0\u1ee3ng. C\u1ea7n tri\u1ec3n khai nhi\u1ec1u sector v\u1edbi anten c\u00f4ng su\u1ea5t th\u1ea5p \u0111\u1ec3 ki\u1ec3m so\u00e1t v\u00f9ng ph\u1ee7 v\u00e0 gi\u1ea3m giao thoa.<\/p>\n<p><strong>Khu VIP<\/strong><\/p>\n<p>Y\u00eau c\u1ea7u t\u1ed1c \u0111\u1ed9 d\u1eef li\u1ec7u cao, \u0111\u1ed9 tr\u1ec5 th\u1ea5p v\u00e0 ch\u1ea5t l\u01b0\u1ee3ng d\u1ecbch v\u1ee5 \u1ed5n \u0111\u1ecbnh. Th\u01b0\u1eddng \u0111\u01b0\u1ee3c \u01b0u ti\u00ean t\u00e0i nguy\u00ean v\u00f4 tuy\u1ebfn v\u00e0 c\u00f3 c\u1ea5u h\u00ecnh QoS ri\u00eang.<\/p>\n<p><strong>Khu b\u00e1o ch\u00ed<\/strong><\/p>\n<p>\u0110\u00f2i h\u1ecfi \u0111\u01b0\u1eddng truy\u1ec1n upload l\u1edbn \u0111\u1ec3 ph\u1ee5c v\u1ee5 truy\u1ec1n h\u00ecnh tr\u1ef1c ti\u1ebfp, truy\u1ec1n \u1ea3nh \u0111\u1ed9 ph\u00e2n gi\u1ea3i cao v\u00e0 s\u1ea3n xu\u1ea5t n\u1ed9i dung th\u1eddi gian th\u1ef1c.<\/p>\n<p><strong>Khu v\u1eadn h\u00e0nh<\/strong><\/p>\n<p>Bao g\u1ed3m trung t\u00e2m \u0111i\u1ec1u khi\u1ec3n, an ninh, ph\u00f2ng k\u1ef9 thu\u1eadt v\u00e0 c\u00e1c h\u1ec7 th\u1ed1ng qu\u1ea3n l\u00fd. K\u1ebft n\u1ed1i ph\u1ea3i c\u00f3 \u0111\u1ed9 tin c\u1eady cao v\u00e0 \u0111\u01b0\u1ee3c \u01b0u ti\u00ean trong m\u1ecdi t\u00ecnh hu\u1ed1ng.<\/p>\n<p><strong>M\u1eb7t s\u00e2n<\/strong><\/p>\n<p>Ph\u1ee5c v\u1ee5 t\u1ed5 tr\u1ecdng t\u00e0i, l\u1ef1c l\u01b0\u1ee3ng an ninh, nh\u00e2n vi\u00ean k\u1ef9 thu\u1eadt, truy\u1ec1n h\u00ecnh, thi\u1ebft b\u1ecb s\u1ea3n xu\u1ea5t ch\u01b0\u01a1ng tr\u00ecnh v\u00e0 c\u00e1c \u1ee9ng d\u1ee5ng \u0111i\u1ec1u h\u00e0nh s\u1ef1 ki\u1ec7n.<\/p>\n<p><strong>Low-Power Antenna v\u00e0 Under-Seat Antenna<\/strong><\/p>\n<p>\u0110\u1ed1i v\u1edbi s\u00e2n v\u1eadn \u0111\u1ed9ng c\u00f3 m\u1eadt \u0111\u1ed9 ng\u01b0\u1eddi d\u00f9ng c\u1ef1c cao, vi\u1ec7c s\u1eed d\u1ee5ng anten c\u00f4ng su\u1ea5t l\u1edbn th\u01b0\u1eddng kh\u00f4ng mang l\u1ea1i hi\u1ec7u qu\u1ea3 do v\u00f9ng ph\u1ee7 ch\u1ed3ng l\u1ea5n v\u00e0 nhi\u1ec5u gi\u1eefa c\u00e1c sector.<\/p>\n<p>Gi\u1ea3i ph\u00e1p ph\u1ed5 bi\u1ebfn hi\u1ec7n nay l\u00e0 tri\u1ec3n khai:<\/p>\n<ul>\n<li>Low-Power Antenna.<\/li>\n<li>Under-Seat Antenna.<\/li>\n<li>Under-Bleacher Antenna.<\/li>\n<li>Handrail Antenna.<\/li>\n<\/ul>\n<p>C\u00e1c anten n\u00e0y \u0111\u01b0\u1ee3c b\u1ed1 tr\u00ed d\u01b0\u1edbi gh\u1ebf ho\u1eb7c d\u01b0\u1edbi kh\u00e1n \u0111\u00e0i nh\u1eb1m:<\/p>\n<ul>\n<li>R\u00fat ng\u1eafn kho\u1ea3ng c\u00e1ch \u0111\u1ebfn thi\u1ebft b\u1ecb ng\u01b0\u1eddi d\u00f9ng.<\/li>\n<li>Gi\u1ea3m c\u00f4ng su\u1ea5t ph\u00e1t.<\/li>\n<li>T\u0103ng hi\u1ec7u qu\u1ea3 s\u1eed d\u1ee5ng ph\u1ed5 t\u1ea7n.<\/li>\n<li>H\u1ea1n ch\u1ebf giao thoa gi\u1eefa c\u00e1c sector.<\/li>\n<li>C\u1ea3i thi\u1ec7n SINR v\u00e0 t\u1ed1c \u0111\u1ed9 d\u1eef li\u1ec7u.<\/li>\n<\/ul>\n<p>\u0110\u00e2y l\u00e0 m\u00f4 h\u00ecnh \u0111\u01b0\u1ee3c \u00e1p d\u1ee5ng r\u1ed9ng r\u00e3i t\u1ea1i nhi\u1ec1u s\u00e2n v\u1eadn \u0111\u1ed9ng v\u00e0 nh\u00e0 thi \u0111\u1ea5u hi\u1ec7n \u0111\u1ea1i tr\u00ean th\u1ebf gi\u1edbi.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-medium wp-image-47949\" src=\"https:\/\/vinastech.vn\/wp-content\/uploads\/2026\/07\/CHUYEN-SAU-B6-600x400.png\" alt=\"\" width=\"600\" height=\"400\" srcset=\"https:\/\/vinastech.vn\/wp-content\/uploads\/2026\/07\/CHUYEN-SAU-B6-600x400.png 600w, https:\/\/vinastech.vn\/wp-content\/uploads\/2026\/07\/CHUYEN-SAU-B6-1200x800.png 1200w, https:\/\/vinastech.vn\/wp-content\/uploads\/2026\/07\/CHUYEN-SAU-B6-768x512.png 768w, https:\/\/vinastech.vn\/wp-content\/uploads\/2026\/07\/CHUYEN-SAU-B6.png 1536w\" sizes=\"auto, (max-width: 600px) 100vw, 600px\" \/><\/p>\n<p><strong>Ki\u1ec3m so\u00e1t giao thoa v\u00e0 t\u1ed1i \u01b0u handover<\/strong><\/p>\n<p>Trong m\u00f4i tr\u01b0\u1eddng c\u00f3 h\u00e0ng ch\u1ee5c \u0111\u1ebfn h\u00e0ng tr\u0103m sector, vi\u1ec7c ki\u1ec3m so\u00e1t giao thoa l\u00e0 y\u1ebfu t\u1ed1 quy\u1ebft \u0111\u1ecbnh hi\u1ec7u qu\u1ea3 c\u1ee7a h\u1ec7 th\u1ed1ng.<\/p>\n<p>C\u00e1c gi\u1ea3i ph\u00e1p k\u1ef9 thu\u1eadt bao g\u1ed3m:<\/p>\n<ul>\n<li>\u0110i\u1ec1u ch\u1ec9nh g\u00f3c nghi\u00eang anten (Electrical v\u00e0 Mechanical Tilt).<\/li>\n<li>Ki\u1ec3m so\u00e1t c\u00f4ng su\u1ea5t ph\u00e1t.<\/li>\n<li>T\u1ed1i \u01b0u PCI Planning.<\/li>\n<li>T\u1ed1i \u01b0u Neighbor List.<\/li>\n<li>Ph\u00e2n b\u1ed5 t\u1ea7n s\u1ed1 h\u1ee3p l\u00fd.<\/li>\n<li>T\u1ed1i \u01b0u Beam Pattern.<\/li>\n<\/ul>\n<p>\u0110\u1ed3ng th\u1eddi, h\u1ec7 th\u1ed1ng ph\u1ea3i \u0111\u1ea3m b\u1ea3o handover di\u1ec5n ra m\u01b0\u1ee3t m\u00e0 khi ng\u01b0\u1eddi d\u00f9ng di chuy\u1ec3n gi\u1eefa c\u00e1c c\u1ed5ng v\u00e0o, h\u00e0nh lang, khu d\u1ecbch v\u1ee5 v\u00e0 kh\u00e1n \u0111\u00e0i m\u00e0 kh\u00f4ng l\u00e0m gi\u00e1n \u0111o\u1ea1n cu\u1ed9c g\u1ecdi ho\u1eb7c phi\u00ean truy\u1ec1n d\u1eef li\u1ec7u.<\/p>\n<p><strong>Thi\u1ebft k\u1ebf truy\u1ec1n d\u1eabn v\u00e0 h\u1ea1 t\u1ea7ng ngu\u1ed3n<\/strong><\/p>\n<p>Hi\u1ec7u qu\u1ea3 c\u1ee7a DAS kh\u00f4ng ch\u1ec9 ph\u1ee5 thu\u1ed9c v\u00e0o ph\u1ea7n v\u00f4 tuy\u1ebfn m\u00e0 c\u00f2n ph\u1ee5 thu\u1ed9c v\u00e0o h\u1ea1 t\u1ea7ng truy\u1ec1n d\u1eabn.<\/p>\n<p>Ki\u1ebfn tr\u00fac th\u01b0\u1eddng bao g\u1ed3m:<\/p>\n<ul>\n<li>BBU\/DU t\u1eadp trung.<\/li>\n<li>Remote Radio Unit (RRU).<\/li>\n<li>DAS Head-End.<\/li>\n<li>Optical Distribution Network.<\/li>\n<li>C\u00e1p quang Ring Topology.<\/li>\n<li>Aggregation Switch.<\/li>\n<li>Core Network k\u1ebft n\u1ed1i \u0111a nh\u00e0 m\u1ea1ng.<\/li>\n<\/ul>\n<p>H\u1ec7 th\u1ed1ng truy\u1ec1n d\u1eabn ph\u1ea3i \u0111\u00e1p \u1ee9ng l\u01b0u l\u01b0\u1ee3ng l\u1edbn v\u1edbi \u0111\u1ed9 tr\u1ec5 th\u1ea5p v\u00e0 c\u00f3 kh\u1ea3 n\u0103ng d\u1ef1 ph\u00f2ng khi x\u1ea3y ra s\u1ef1 c\u1ed1.<\/p>\n<p>B\u00ean c\u1ea1nh \u0111\u00f3, c\u00e1c t\u1ee7 thi\u1ebft b\u1ecb c\u1ea7n \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf v\u1edbi:<\/p>\n<ul>\n<li>Ngu\u1ed3n AC\/DC d\u1ef1 ph\u00f2ng.<\/li>\n<li>UPS v\u00e0 h\u1ec7 th\u1ed1ng \u1eafc quy.<\/li>\n<li>M\u00e1y ph\u00e1t \u0111i\u1ec7n d\u1ef1 ph\u00f2ng.<\/li>\n<li>H\u1ec7 th\u1ed1ng l\u00e0m m\u00e1t.<\/li>\n<li>Gi\u00e1m s\u00e1t nhi\u1ec7t \u0111\u1ed9 v\u00e0 \u0111\u1ed9 \u1ea9m.<\/li>\n<li>Ch\u1ed1ng s\u00e9t v\u00e0 ti\u1ebfp \u0111\u1ecba \u0111\u1ea1t ti\u00eau chu\u1ea9n.<\/li>\n<\/ul>\n<p><strong>Thi\u1ebft k\u1ebf cho nhi\u1ec1u lo\u1ea1i s\u1ef1 ki\u1ec7n<\/strong><\/p>\n<p>M\u1ed9t s\u00e2n v\u1eadn \u0111\u1ed9ng hi\u1ec7n \u0111\u1ea1i kh\u00f4ng ch\u1ec9 ph\u1ee5c v\u1ee5 c\u00e1c tr\u1eadn \u0111\u1ea5u th\u1ec3 thao m\u00e0 c\u00f2n l\u00e0 \u0111\u1ecba \u0111i\u1ec3m t\u1ed5 ch\u1ee9c concert, l\u1ec5 h\u1ed9i, s\u1ef1 ki\u1ec7n qu\u1ed1c t\u1ebf v\u00e0 c\u00e1c ch\u01b0\u01a1ng tr\u00ecnh gi\u1ea3i tr\u00ed quy m\u00f4 l\u1edbn.<\/p>\n<p>Do \u0111\u00f3, h\u1ec7 th\u1ed1ng DAS c\u1ea7n \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf v\u1edbi kh\u1ea3 n\u0103ng m\u1edf r\u1ed9ng v\u00e0 th\u00edch \u1ee9ng theo t\u1eebng k\u1ecbch b\u1ea3n v\u1eadn h\u00e0nh, cho ph\u00e9p \u0111i\u1ec1u ch\u1ec9nh c\u1ea5u h\u00ecnh v\u00f9ng ph\u1ee7, dung l\u01b0\u1ee3ng v\u00e0 t\u00e0i nguy\u00ean v\u00f4 tuy\u1ebfn ph\u00f9 h\u1ee3p v\u1edbi \u0111\u1eb7c \u0111i\u1ec3m c\u1ee7a t\u1eebng lo\u1ea1i s\u1ef1 ki\u1ec7n.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>V\u00ec sao s\u00e2n v\u1eadn \u0111\u1ed9ng l\u00e0 b\u00e0i to\u00e1n kh\u00f3 nh\u1ea5t c\u1ee7a h\u1ec7 th\u1ed1ng DAS? Trong l\u0129nh v\u1ef1c thi\u1ebft k\u1ebf m\u1ea1ng v\u00f4 tuy\u1ebfn trong nh\u00e0 (Indoor Wireless System), s\u00e2n v\u1eadn \u0111\u1ed9ng c\u00f3 s\u1ee9c ch\u1ee9a t\u1eeb 70.000 \u0111\u1ebfn 120.000 kh\u00e1n gi\u1ea3 \u0111\u01b0\u1ee3c xem l\u00e0 m\u1ed9t trong nh\u1eefng m\u00f4i tr\u01b0\u1eddng tri\u1ec3n khai Distributed Antenna System (DAS) ph\u1ee9c t\u1ea1p&#8230;<\/p>\n","protected":false},"author":2,"featured_media":47948,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[3703,3705],"tags":[],"class_list":["post-47947","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-dien-nhe","category-kich-song"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v21.5 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Thi\u1ebft k\u1ebf DAS cho si\u00eau s\u00e2n v\u1eadn \u0111\u1ed9ng<\/title>\n<meta name=\"description\" content=\"Thi\u1ebft k\u1ebf DAS cho s\u00e2n v\u1eadn \u0111\u1ed9ng 70.000\u2013120.000 ch\u1ed7 ng\u1ed3i l\u00e0 b\u00e0i to\u00e1n t\u1ed1i \u01b0u t\u1ed5ng th\u1ec3 gi\u1eefa v\u00f9ng ph\u1ee7, dung l\u01b0\u1ee3ng, ki\u1ec3m so\u00e1t nhi\u1ec5u v\u00e0 \u0111\u1ed9 tin c\u1eady c\u1ee7a h\u1ec7 th\u1ed1ng. M\u1ed9t gi\u1ea3i ph\u00e1p hi\u1ec7u qu\u1ea3 ph\u1ea3i b\u1eaft \u0111\u1ea7u t\u1eeb vi\u1ec7c d\u1ef1 b\u00e1o h\u00e0nh vi ng\u01b0\u1eddi d\u00f9ng, t\u00ednh to\u00e1n l\u01b0u l\u01b0\u1ee3ng d\u1eef li\u1ec7u, ph\u00e2n chia sector theo dung l\u01b0\u1ee3ng, tri\u1ec3n khai anten c\u00f4ng su\u1ea5t th\u1ea5p t\u1ea1i c\u00e1c khu v\u1ef1c m\u1eadt \u0111\u1ed9 cao, t\u1ed1i \u01b0u handover v\u00e0 x\u00e2y d\u1ef1ng h\u1ea1 t\u1ea7ng truy\u1ec1n d\u1eabn c\u00f3 kh\u1ea3 n\u0103ng d\u1ef1 ph\u00f2ng. Ch\u1ec9 khi \u0111\u1ed3ng th\u1eddi gi\u1ea3i quy\u1ebft \u0111\u01b0\u1ee3c c\u00e1c y\u1ebfu t\u1ed1 n\u00e0y, h\u1ec7 th\u1ed1ng m\u1edbi c\u00f3 th\u1ec3 \u0111\u00e1p \u1ee9ng tr\u1ea3i nghi\u1ec7m k\u1ebft n\u1ed1i \u1ed5n \u0111\u1ecbnh cho h\u00e0ng ch\u1ee5c ngh\u00ecn ng\u01b0\u1eddi d\u00f9ng trong nh\u1eefng th\u1eddi \u0111i\u1ec3m l\u01b0u l\u01b0\u1ee3ng \u0111\u1ea1t \u0111\u1ec9nh.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/vinastech.vn\/thiet-ke-das-cho-sieu-san-van-dong-tu-phu-song-den-bai-toan-dung-luong-120-000-nguoi-dung\/\" \/>\n<meta property=\"og:locale\" content=\"vi_VN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Thi\u1ebft k\u1ebf DAS cho si\u00eau s\u00e2n v\u1eadn \u0111\u1ed9ng\" \/>\n<meta property=\"og:description\" content=\"Thi\u1ebft k\u1ebf DAS cho s\u00e2n v\u1eadn \u0111\u1ed9ng 70.000\u2013120.000 ch\u1ed7 ng\u1ed3i l\u00e0 b\u00e0i to\u00e1n t\u1ed1i \u01b0u t\u1ed5ng th\u1ec3 gi\u1eefa v\u00f9ng ph\u1ee7, dung l\u01b0\u1ee3ng, ki\u1ec3m so\u00e1t nhi\u1ec5u v\u00e0 \u0111\u1ed9 tin c\u1eady c\u1ee7a h\u1ec7 th\u1ed1ng. M\u1ed9t gi\u1ea3i ph\u00e1p hi\u1ec7u qu\u1ea3 ph\u1ea3i b\u1eaft \u0111\u1ea7u t\u1eeb vi\u1ec7c d\u1ef1 b\u00e1o h\u00e0nh vi ng\u01b0\u1eddi d\u00f9ng, t\u00ednh to\u00e1n l\u01b0u l\u01b0\u1ee3ng d\u1eef li\u1ec7u, ph\u00e2n chia sector theo dung l\u01b0\u1ee3ng, tri\u1ec3n khai anten c\u00f4ng su\u1ea5t th\u1ea5p t\u1ea1i c\u00e1c khu v\u1ef1c m\u1eadt \u0111\u1ed9 cao, t\u1ed1i \u01b0u handover v\u00e0 x\u00e2y d\u1ef1ng h\u1ea1 t\u1ea7ng truy\u1ec1n d\u1eabn c\u00f3 kh\u1ea3 n\u0103ng d\u1ef1 ph\u00f2ng. 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