{"id":47955,"date":"2026-07-29T14:47:13","date_gmt":"2026-07-29T07:47:13","guid":{"rendered":"https:\/\/vinastech.vn\/?p=47955"},"modified":"2026-07-29T14:47:13","modified_gmt":"2026-07-29T07:47:13","slug":"sector-hoa-san-van-dong-lam-the-nao-phuc-vu-hang-chuc-nghin-thue-bao-cung-luc","status":"publish","type":"post","link":"https:\/\/vinastech.vn\/sector-hoa-san-van-dong-lam-the-nao-phuc-vu-hang-chuc-nghin-thue-bao-cung-luc\/","title":{"rendered":"Sector h\u00f3a s\u00e2n v\u1eadn \u0111\u1ed9ng: L\u00e0m th\u1ebf n\u00e0o ph\u1ee5c v\u1ee5 h\u00e0ng ch\u1ee5c ngh\u00ecn thu\u00ea bao c\u00f9ng l\u00fac?"},"content":{"rendered":"<p><strong>Gi\u1edbi thi\u1ec7u<\/strong><\/p>\n<p>M\u1ed9t s\u00e2n v\u1eadn \u0111\u1ed9ng hi\u1ec7n \u0111\u1ea1i v\u1edbi s\u1ee9c ch\u1ee9a t\u1eeb <strong>70.000 \u0111\u1ebfn h\u01a1n 120.000 kh\u00e1n gi\u1ea3<\/strong> l\u00e0 m\u1ed9t trong nh\u1eefng m\u00f4i tr\u01b0\u1eddng vi\u1ec5n th\u00f4ng c\u00f3 m\u1eadt \u0111\u1ed9 ng\u01b0\u1eddi d\u00f9ng cao nh\u1ea5t hi\u1ec7n nay. Trong c\u00e1c s\u1ef1 ki\u1ec7n th\u1ec3 thao, concert hay l\u1ec5 h\u1ed9i, h\u00e0ng ch\u1ee5c ngh\u00ecn thi\u1ebft b\u1ecb di \u0111\u1ed9ng c\u00f9ng l\u00fac livestream, t\u1ea3i video, chia s\u1ebb h\u00ecnh \u1ea3nh v\u00e0 s\u1eed d\u1ee5ng c\u00e1c d\u1ecbch v\u1ee5 OTT khi\u1ebfn l\u01b0u l\u01b0\u1ee3ng d\u1eef li\u1ec7u t\u0103ng \u0111\u1ed9t bi\u1ebfn ch\u1ec9 trong v\u00e0i ph\u00fat.<\/p>\n<p>Th\u1ef1c t\u1ebf cho th\u1ea5y, <strong>vi\u1ec7c b\u1ed5 sung th\u00eam anten kh\u00f4ng \u0111\u1ed3ng ngh\u0129a v\u1edbi vi\u1ec7c n\u00e2ng cao ch\u1ea5t l\u01b0\u1ee3ng m\u1ea1ng<\/strong>. N\u1ebfu thi\u1ebft k\u1ebf RF kh\u00f4ng h\u1ee3p l\u00fd, s\u1ed1 l\u01b0\u1ee3ng cell l\u1edbn h\u01a1n s\u1ebd l\u00e0m t\u0103ng nhi\u1ec5u \u0111\u1ed3ng k\u00eanh (Co-channel Interference), gi\u1ea3m SINR, t\u0103ng t\u1ef7 l\u1ec7 handover th\u1ea5t b\u1ea1i v\u00e0 khi\u1ebfn hi\u1ec7u su\u1ea5t ph\u1ed5 t\u1ea7n suy gi\u1ea3m nghi\u00eam tr\u1ecdng.<\/p>\n<p>V\u00ec v\u1eady, trong c\u00e1c d\u1ef1 \u00e1n DAS Neutral Host ho\u1eb7c Dedicated DAS d\u00e0nh cho s\u00e2n v\u1eadn \u0111\u1ed9ng, <strong>sector h\u00f3a (Sectorization)<\/strong> l\u00e0 y\u1ebfu t\u1ed1 quy\u1ebft \u0111\u1ecbnh kh\u1ea3 n\u0103ng khai th\u00e1c dung l\u01b0\u1ee3ng c\u1ee7a to\u00e0n b\u1ed9 h\u1ec7 th\u1ed1ng.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-medium wp-image-47956\" src=\"https:\/\/vinastech.vn\/wp-content\/uploads\/2026\/07\/TONG-QUAN-BAI-7-600x400.png\" alt=\"\" width=\"600\" height=\"400\" srcset=\"https:\/\/vinastech.vn\/wp-content\/uploads\/2026\/07\/TONG-QUAN-BAI-7-600x400.png 600w, https:\/\/vinastech.vn\/wp-content\/uploads\/2026\/07\/TONG-QUAN-BAI-7-1200x800.png 1200w, https:\/\/vinastech.vn\/wp-content\/uploads\/2026\/07\/TONG-QUAN-BAI-7-768x512.png 768w, https:\/\/vinastech.vn\/wp-content\/uploads\/2026\/07\/TONG-QUAN-BAI-7.png 1536w\" sizes=\"auto, (max-width: 600px) 100vw, 600px\" \/><\/p>\n<p><strong>Sector h\u00f3a l\u00e0 g\u00ec?<\/strong><\/p>\n<p>Sector h\u00f3a l\u00e0 qu\u00e1 tr\u00ecnh chia v\u00f9ng ph\u1ee7 s\u00f3ng th\u00e0nh nhi\u1ec1u cell nh\u1ecf h\u01a1n nh\u1eb1m:<\/p>\n<ul>\n<li>Gi\u1ea3m s\u1ed1 l\u01b0\u1ee3ng UE ph\u1ee5c v\u1ee5 tr\u00ean m\u1ed7i cell.<\/li>\n<li>T\u0103ng kh\u1ea3 n\u0103ng t\u00e1i s\u1eed d\u1ee5ng ph\u1ed5 t\u1ea7n.<\/li>\n<li>Ki\u1ec3m so\u00e1t m\u1ee9c nhi\u1ec5u.<\/li>\n<li>T\u0103ng t\u1ed5ng dung l\u01b0\u1ee3ng h\u1ec7 th\u1ed1ng.<\/li>\n<li>C\u1ea3i thi\u1ec7n t\u1ed1c \u0111\u1ed9 t\u1ea3i xu\u1ed1ng v\u00e0 t\u1ea3i l\u00ean.<\/li>\n<\/ul>\n<p>Kh\u00e1c v\u1edbi c\u00e1c t\u00f2a nh\u00e0 v\u0103n ph\u00f2ng, s\u00e2n v\u1eadn \u0111\u1ed9ng c\u00f3 \u0111\u1eb7c \u0111i\u1ec3m:<\/p>\n<ul>\n<li>M\u1eadt \u0111\u1ed9 thu\u00ea bao c\u1ef1c l\u1edbn.<\/li>\n<li>Ng\u01b0\u1eddi d\u00f9ng t\u1eadp trung theo t\u1eebng block gh\u1ebf.<\/li>\n<li>L\u01b0u l\u01b0\u1ee3ng thay \u0111\u1ed5i theo t\u1eebng th\u1eddi \u0111i\u1ec3m c\u1ee7a tr\u1eadn \u0111\u1ea5u.<\/li>\n<li>Ph\u1ea7n l\u1edbn thu\u00ea bao s\u1eed d\u1ee5ng c\u00f9ng h\u01b0\u1edbng nh\u00ecn v\u1ec1 s\u00e2n thi \u0111\u1ea5u.<\/li>\n<\/ul>\n<p>Do \u0111\u00f3, t\u01b0 duy thi\u1ebft k\u1ebf sector ho\u00e0n to\u00e0n kh\u00e1c v\u1edbi c\u00e1c c\u00f4ng tr\u00ecnh th\u00f4ng th\u01b0\u1eddng.<\/p>\n<p><strong>Kh\u00f4ng chia sector theo s\u1ed1 gh\u1ebf m\u00e0 theo m\u00f4 h\u00ecnh l\u01b0u l\u01b0\u1ee3ng<\/strong><\/p>\n<p>\u0110\u00e2y l\u00e0 sai l\u1ea7m ph\u1ed5 bi\u1ebfn c\u1ee7a nhi\u1ec1u \u0111\u01a1n v\u1ecb m\u1edbi tri\u1ec3n khai.<\/p>\n<p>V\u00ed d\u1ee5:<\/p>\n<p>S\u00e2n v\u1eadn \u0111\u1ed9ng 80.000 ch\u1ed7 ng\u1ed3i kh\u00f4ng c\u00f3 ngh\u0129a l\u00e0 c\u1ee9 5.000 gh\u1ebf ph\u1ea3i t\u1ea1o m\u1ed9t sector.<\/p>\n<p>Thay v\u00e0o \u0111\u00f3 c\u1ea7n d\u1ef1a tr\u00ean:<\/p>\n<ul>\n<li>Carrier Bandwidth c\u1ee7a t\u1eebng nh\u00e0 m\u1ea1ng.<\/li>\n<li>S\u1ed1 l\u01b0\u1ee3ng Carrier Aggregation.<\/li>\n<li>B\u0103ng t\u1ea7n \u0111\u01b0\u1ee3c c\u1ea5p.<\/li>\n<li>MIMO Configuration.<\/li>\n<li>Spectral Efficiency.<\/li>\n<li>Traffic Model.<\/li>\n<li>Throughput m\u1ee5c ti\u00eau.<\/li>\n<li>Busy Hour Traffic.<\/li>\n<li>Peak Concurrent Users.<\/li>\n<\/ul>\n<p>V\u00ed d\u1ee5:<\/p>\n<p>N\u1ebfu m\u1ed9t sector LTE c\u00f3 kh\u1ea3 n\u0103ng ph\u1ee5c v\u1ee5:<\/p>\n<ul>\n<li>350\u2013450 Mbps Downlink<\/li>\n<li>Hi\u1ec7u su\u1ea5t ph\u1ed5 kho\u1ea3ng 4\u20135 bps\/Hz<\/li>\n<\/ul>\n<p>Trong khi y\u00eau c\u1ea7u:<\/p>\n<ul>\n<li>2.500 thu\u00ea bao ho\u1ea1t \u0111\u1ed9ng \u0111\u1ed3ng th\u1eddi<\/li>\n<li>m\u1ed7i thu\u00ea bao t\u1ed1i thi\u1ec3u 2 Mbps<\/li>\n<\/ul>\n<p>th\u00ec r\u00f5 r\u00e0ng m\u1ed9t sector kh\u00f4ng \u0111\u1ee7.<\/p>\n<p>L\u00fac n\u00e0y c\u1ea7n chia th\u00eam cell thay v\u00ec t\u0103ng c\u00f4ng su\u1ea5t.<\/p>\n<p><strong>Chia kh\u00e1n \u0111\u00e0i theo Block gh\u1ebf v\u00e0 cao \u0111\u1ed9<\/strong><\/p>\n<p>M\u1ed9t s\u00e2n v\u1eadn \u0111\u1ed9ng th\u01b0\u1eddng g\u1ed3m:<\/p>\n<ul>\n<li>Lower Bowl<\/li>\n<li>Middle Bowl<\/li>\n<li>Upper Bowl<\/li>\n<li>VIP Stand<\/li>\n<li>Press Area<\/li>\n<li>Hospitality Area<\/li>\n<li>Tunnel<\/li>\n<li>Mixed Zone<\/li>\n<li>Backstage<\/li>\n<\/ul>\n<p>M\u1ed7i khu v\u1ef1c c\u00f3:<\/p>\n<ul>\n<li>m\u1eadt \u0111\u1ed9 ng\u01b0\u1eddi kh\u00e1c nhau<\/li>\n<li>h\u00e0nh vi s\u1eed d\u1ee5ng kh\u00e1c nhau<\/li>\n<li>m\u1ee9c t\u1ea3i kh\u00e1c nhau<\/li>\n<\/ul>\n<p>Do \u0111\u00f3 vi\u1ec7c sector h\u00f3a ph\u1ea3i d\u1ef1a tr\u00ean:<\/p>\n<ul>\n<li>Block gh\u1ebf<\/li>\n<li>H\u01b0\u1edbng anten<\/li>\n<li>Cao \u0111\u1ed9<\/li>\n<li>G\u00f3c nghi\u00eang anten<\/li>\n<\/ul>\n<p>thay v\u00ec chia \u0111\u1ec1u theo h\u00ecnh h\u1ecdc.<\/p>\n<p>V\u00ed d\u1ee5:<\/p>\n<p>Kh\u00e1n \u0111\u00e0i A:<\/p>\n<ul>\n<li>Lower Bowl: 3 sector<\/li>\n<li>Upper Bowl: 5 sector<\/li>\n<\/ul>\n<p>Trong khi khu VIP ch\u1ec9 c\u1ea7n 1 sector do m\u1eadt \u0111\u1ed9 th\u1ea5p h\u01a1n.<\/p>\n<p><strong>Thi\u1ebft k\u1ebf sector theo l\u01b0u l\u01b0\u1ee3ng thay v\u00ec v\u1ecb tr\u00ed<\/strong><\/p>\n<p>M\u1ed9t nguy\u00ean t\u1eafc quan tr\u1ecdng trong RF Planning l\u00e0:<\/p>\n<p><strong>Traffic defines cells.<\/strong><\/p>\n<p>Kh\u00f4ng ph\u1ea3i:<\/p>\n<p><strong>Geometry defines cells.<\/strong><\/p>\n<p>V\u00ed d\u1ee5:<\/p>\n<p>Hai block gh\u1ebf c\u00f3 c\u00f9ng di\u1ec7n t\u00edch.<\/p>\n<p>Nh\u01b0ng:<\/p>\n<p>Block A:<\/p>\n<ul>\n<li>livestream nhi\u1ec1u<\/li>\n<li>upload video<\/li>\n<li>d\u00f9ng 5G nhi\u1ec1u<\/li>\n<\/ul>\n<p>Block B:<\/p>\n<ul>\n<li>ch\u1ee7 y\u1ebfu xem tr\u1eadn \u0111\u1ea5u<\/li>\n<\/ul>\n<p>Th\u00ec Block A c\u1ea7n:<\/p>\n<ul>\n<li>nhi\u1ec1u sector h\u01a1n<\/li>\n<li>nhi\u1ec1u carrier h\u01a1n<\/li>\n<li>c\u1ea5u h\u00ecnh MIMO cao h\u01a1n<\/li>\n<\/ul>\n<p><strong>S\u1eed d\u1ee5ng anten \u0111\u1ecbnh h\u01b0\u1edbng c\u00f3 b\u00fap s\u00f3ng h\u1eb9p<\/strong><\/p>\n<p>Trong s\u00e2n v\u1eadn \u0111\u1ed9ng, anten omnidirectional h\u1ea7u nh\u01b0 kh\u00f4ng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u1edf khu v\u1ef1c kh\u00e1n \u0111\u00e0i.<\/p>\n<p>Thay v\u00e0o \u0111\u00f3 l\u00e0:<\/p>\n<ul>\n<li>Directional Panel<\/li>\n<li>Stadium Antenna<\/li>\n<li>Narrow Beam Antenna<\/li>\n<li>High Front-to-Back Ratio Antenna<\/li>\n<\/ul>\n<p>L\u1ee3i \u00edch:<\/p>\n<ul>\n<li>gi\u1edbi h\u1ea1n v\u00f9ng ph\u1ee7<\/li>\n<li>gi\u1ea3m ch\u1ed3ng ph\u1ee7<\/li>\n<li>gi\u1ea3m nhi\u1ec5u<\/li>\n<li>t\u0103ng SINR<\/li>\n<li>t\u0103ng kh\u1ea3 n\u0103ng t\u00e1i s\u1eed d\u1ee5ng t\u1ea7n s\u1ed1<\/li>\n<\/ul>\n<p>Th\u00f4ng th\u01b0\u1eddng:<\/p>\n<p>Beamwidth ngang:<\/p>\n<p>20\u00b0<\/p>\n<p>30\u00b0<\/p>\n<p>40\u00b0<\/p>\n<p>65\u00b0<\/p>\n<p>t\u00f9y t\u1eebng block gh\u1ebf.<\/p>\n<p>Vertical Beam:<\/p>\n<p>5\u00b0<\/p>\n<p>8\u00b0<\/p>\n<p>10\u00b0<\/p>\n<p>15\u00b0<\/p>\n<p>\u0111\u01b0\u1ee3c l\u1ef1a ch\u1ecdn theo \u0111\u1ed9 cao l\u1eafp \u0111\u1eb7t.<\/p>\n<p><strong>\u0110i\u1ec1u ch\u1ec9nh c\u00f4ng su\u1ea5t \u0111\u1ec3 tr\u00e1nh ph\u1ee7 ch\u1ed3ng qu\u00e1 m\u1ee9c<\/strong><\/p>\n<p>M\u1ed9t l\u1ed7i ph\u1ed5 bi\u1ebfn l\u00e0:<\/p>\n<p>&#8220;T\u0103ng c\u00f4ng su\u1ea5t \u0111\u1ec3 t\u0103ng v\u00f9ng ph\u1ee7.&#8221;<\/p>\n<p>Trong m\u00f4i tr\u01b0\u1eddng s\u00e2n v\u1eadn \u0111\u1ed9ng \u0111i\u1ec1u n\u00e0y th\u01b0\u1eddng ph\u1ea3n t\u00e1c d\u1ee5ng.<\/p>\n<p>N\u1ebfu hai sector \u0111\u1ec1u ph\u00e1t c\u00f4ng su\u1ea5t l\u1edbn:<\/p>\n<ul>\n<li>UE nh\u1eadn \u0111\u1ed3ng th\u1eddi hai t\u00edn hi\u1ec7u m\u1ea1nh<\/li>\n<li>SINR gi\u1ea3m<\/li>\n<li>CQI gi\u1ea3m<\/li>\n<li>Throughput gi\u1ea3m<\/li>\n<li>BLER t\u0103ng<\/li>\n<li>Retransmission t\u0103ng<\/li>\n<\/ul>\n<p>Thay v\u00e0o \u0111\u00f3:<\/p>\n<p>M\u1ed7i sector n\u00ean:<\/p>\n<ul>\n<li>ch\u1ec9 ph\u1ee7 \u0111\u00fang block \u0111\u01b0\u1ee3c giao<\/li>\n<li>h\u1ea1n ch\u1ebf overshooting<\/li>\n<li>gi\u1ea3m leakage sang sector b\u00ean c\u1ea1nh<\/li>\n<\/ul>\n<p><strong>Ki\u1ec3m so\u00e1t PCI \u0111\u1ec3 gi\u1ea3m xung \u0111\u1ed9t<\/strong><\/p>\n<p>Khi s\u1ed1 l\u01b0\u1ee3ng cell r\u1ea5t l\u1edbn:<\/p>\n<p>PCI Planning tr\u1edf th\u00e0nh b\u00e0i to\u00e1n b\u1eaft bu\u1ed9c.<\/p>\n<p>N\u1ebfu c\u1ea5u h\u00ecnh kh\u00f4ng h\u1ee3p l\u00fd s\u1ebd x\u1ea3y ra:<\/p>\n<p><strong>PCI Collision<\/strong><\/p>\n<p>Hai cell g\u1ea7n nhau d\u00f9ng c\u00f9ng PCI.<\/p>\n<p>UE kh\u00f4ng ph\u00e2n bi\u1ec7t \u0111\u01b0\u1ee3c.<\/p>\n<p><strong>PCI Confusion<\/strong><\/p>\n<p>Cell ph\u1ee5c v\u1ee5 v\u00e0 cell l\u00e2n c\u1eadn c\u00f3 PCI gi\u1ed1ng nhau.<\/p>\n<p>D\u1eabn t\u1edbi:<\/p>\n<ul>\n<li>handover l\u1ed7i<\/li>\n<li>RLF t\u0103ng<\/li>\n<li>UE ch\u1ecdn sai cell<\/li>\n<\/ul>\n<p>Gi\u1ea3i ph\u00e1p:<\/p>\n<ul>\n<li>x\u00e2y d\u1ef1ng PCI Reuse Pattern<\/li>\n<li>t\u1ed1i \u01b0u kho\u1ea3ng c\u00e1ch t\u00e1i s\u1eed d\u1ee5ng<\/li>\n<li>ki\u1ec3m tra b\u1eb1ng c\u00f4ng c\u1ee5 RF Planning<\/li>\n<\/ul>\n<p><strong>T\u1ed1i \u01b0u Neighbor Relation<\/strong><\/p>\n<p>Danh s\u00e1ch Neighbor qu\u00e1 \u00edt:<\/p>\n<p>\u2192 UE kh\u00f4ng t\u00ecm th\u1ea5y cell k\u1ebf ti\u1ebfp.<\/p>\n<p>Danh s\u00e1ch qu\u00e1 nhi\u1ec1u:<\/p>\n<p>\u2192 t\u0103ng signaling.<\/p>\n<p>\u2192 UE ph\u1ea3i \u0111o qu\u00e1 nhi\u1ec1u cell.<\/p>\n<p>Trong s\u00e2n v\u1eadn \u0111\u1ed9ng n\u00ean:<\/p>\n<ul>\n<li>ch\u1ec9 khai b\u00e1o neighbor th\u1ef1c s\u1ef1 c\u1ea7n thi\u1ebft<\/li>\n<li>t\u1ed1i \u01b0u theo h\u01b0\u1edbng di chuy\u1ec3n c\u1ee7a ng\u01b0\u1eddi xem<\/li>\n<li>c\u1eadp nh\u1eadt sau c\u00e1c s\u1ef1 ki\u1ec7n th\u1ef1c t\u1ebf<\/li>\n<\/ul>\n<p><strong>Thi\u1ebft k\u1ebf Handover ph\u00f9 h\u1ee3p<\/strong><\/p>\n<p>Kh\u00e1c v\u1edbi \u0111\u00f4 th\u1ecb, trong s\u00e2n v\u1eadn \u0111\u1ed9ng:<\/p>\n<p>Ng\u01b0\u1eddi d\u00f9ng g\u1ea7n nh\u01b0 \u0111\u1ee9ng y\u00ean trong su\u1ed1t tr\u1eadn \u0111\u1ea5u.<\/p>\n<p>Do \u0111\u00f3:<\/p>\n<p>Kh\u00f4ng c\u1ea7n qu\u00e1 nhi\u1ec1u handover.<\/p>\n<p>Ng\u01b0\u1ee3c l\u1ea1i.<\/p>\n<p>Sau khi tr\u1eadn \u0111\u1ea5u k\u1ebft th\u00fac.<\/p>\n<p>70.000 ng\u01b0\u1eddi di chuy\u1ec3n \u0111\u1ed3ng th\u1eddi.<\/p>\n<p>L\u00fac n\u00e0y:<\/p>\n<ul>\n<li>handover t\u0103ng \u0111\u1ed9t bi\u1ebfn<\/li>\n<li>signaling t\u0103ng m\u1ea1nh<\/li>\n<li>RRC Connection t\u0103ng<\/li>\n<\/ul>\n<p>Thi\u1ebft k\u1ebf RF c\u1ea7n d\u1ef1 \u0111o\u00e1n ch\u00ednh x\u00e1c giai \u0111o\u1ea1n n\u00e0y.<\/p>\n<p><strong>Ki\u1ec3m so\u00e1t nhi\u1ec5u gi\u1eefa DAS Indoor v\u00e0 Macro Outdoor<\/strong><\/p>\n<p>\u0110\u00e2y l\u00e0 b\u00e0i to\u00e1n r\u1ea5t th\u01b0\u1eddng g\u1eb7p.<\/p>\n<p>Macro ngo\u00e0i s\u00e2n:<\/p>\n<ul>\n<li>c\u00f4ng su\u1ea5t l\u1edbn<\/li>\n<li>anten cao<\/li>\n<\/ul>\n<p>Indoor DAS:<\/p>\n<ul>\n<li>c\u00f4ng su\u1ea5t th\u1ea5p<\/li>\n<li>anten g\u1ea7n UE<\/li>\n<\/ul>\n<p>N\u1ebfu kh\u00f4ng ki\u1ec3m so\u00e1t:<\/p>\n<p>UE c\u00f3 th\u1ec3:<\/p>\n<ul>\n<li>b\u00e1m Macro thay v\u00ec Indoor<\/li>\n<li>handover li\u00ean t\u1ee5c<\/li>\n<li>ping-pong<\/li>\n<li>throughput gi\u1ea3m<\/li>\n<\/ul>\n<p>Gi\u1ea3i ph\u00e1p:<\/p>\n<ul>\n<li>\u0111i\u1ec1u ch\u1ec9nh c\u00f4ng su\u1ea5t ph\u00e1t<\/li>\n<li>t\u1ed1i \u01b0u Tilt Macro<\/li>\n<li>c\u1ea5u h\u00ecnh Cell Reselection<\/li>\n<li>t\u1ed1i \u01b0u Threshold HO<\/li>\n<li>ki\u1ec3m so\u00e1t v\u00f9ng giao thoa<\/li>\n<\/ul>\n<p><strong>C\u00e2n b\u1eb1ng Uplink v\u00e0 Downlink<\/strong><\/p>\n<p>Nhi\u1ec1u h\u1ec7 th\u1ed1ng ch\u1ec9 t\u1eadp trung t\u1ed1i \u01b0u Downlink.<\/p>\n<p>Trong khi:<\/p>\n<p>Livestream.<\/p>\n<p>Video Call.<\/p>\n<p>Upload m\u1ea1ng x\u00e3 h\u1ed9i.<\/p>\n<p>Cloud Backup.<\/p>\n<p>\u0111\u1ec1u ti\u00eau th\u1ee5 uplink r\u1ea5t l\u1edbn.<\/p>\n<p>N\u1ebfu ch\u1ec9 t\u0103ng Downlink:<\/p>\n<p>UE v\u1eabn b\u1ecb ngh\u1ebdn do:<\/p>\n<ul>\n<li>UL Interference<\/li>\n<li>Noise Rise<\/li>\n<li>UE Max Power<\/li>\n<\/ul>\n<p>Do \u0111\u00f3:<\/p>\n<p>UL Budget ph\u1ea3i \u0111\u01b0\u1ee3c t\u00ednh ri\u00eang.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-medium wp-image-47957\" src=\"https:\/\/vinastech.vn\/wp-content\/uploads\/2026\/07\/CHUYEN-SAU-BAI-7-600x400.png\" alt=\"\" width=\"600\" height=\"400\" srcset=\"https:\/\/vinastech.vn\/wp-content\/uploads\/2026\/07\/CHUYEN-SAU-BAI-7-600x400.png 600w, https:\/\/vinastech.vn\/wp-content\/uploads\/2026\/07\/CHUYEN-SAU-BAI-7-1199x800.png 1199w, https:\/\/vinastech.vn\/wp-content\/uploads\/2026\/07\/CHUYEN-SAU-BAI-7-768x512.png 768w, https:\/\/vinastech.vn\/wp-content\/uploads\/2026\/07\/CHUYEN-SAU-BAI-7.png 1535w\" sizes=\"auto, (max-width: 600px) 100vw, 600px\" \/><\/p>\n<p><strong>Thi\u1ebft k\u1ebf MIMO v\u00e0 ph\u00e2n c\u1ef1c anten<\/strong><\/p>\n<p>C\u00e1c h\u1ec7 th\u1ed1ng hi\u1ec7n \u0111\u1ea1i th\u01b0\u1eddng s\u1eed d\u1ee5ng:<\/p>\n<ul>\n<li>2\u00d72 MIMO<\/li>\n<li>4\u00d74 MIMO<\/li>\n<li>Massive MIMO (t\u1ea1i macro)<\/li>\n<\/ul>\n<p>Trong DAS:<\/p>\n<p>Vi\u1ec7c b\u1ed1 tr\u00ed anten ph\u1ea3i \u0111\u1ea3m b\u1ea3o:<\/p>\n<ul>\n<li>kho\u1ea3ng c\u00e1ch h\u1ee3p l\u00fd<\/li>\n<li>ph\u00e2n c\u1ef1c \u00b145\u00b0<\/li>\n<li>h\u1ea1n ch\u1ebf t\u01b0\u01a1ng quan t\u00edn hi\u1ec7u<\/li>\n<li>t\u1ed1i \u01b0u Rank Indicator<\/li>\n<\/ul>\n<p>N\u1ebfu l\u1eafp \u0111\u1eb7t sai:<\/p>\n<p>Hi\u1ec7u qu\u1ea3 MIMO g\u1ea7n nh\u01b0 m\u1ea5t ho\u00e0n to\u00e0n.<\/p>\n<p><strong>X\u1eed l\u00fd v\u00f9ng ranh gi\u1edbi gi\u1eefa c\u00e1c sector<\/strong><\/p>\n<p>Ranh gi\u1edbi sector lu\u00f4n l\u00e0 khu v\u1ef1c nh\u1ea1y c\u1ea3m.<\/p>\n<p>N\u1ebfu:<\/p>\n<p>Cell A m\u1ea1nh h\u01a1n.<\/p>\n<p>Cell B c\u0169ng m\u1ea1nh.<\/p>\n<p>UE s\u1ebd:<\/p>\n<ul>\n<li>ping-pong<\/li>\n<li>RLF<\/li>\n<li>gi\u1ea3m SINR<\/li>\n<\/ul>\n<p>Gi\u1ea3i ph\u00e1p:<\/p>\n<ul>\n<li>t\u1ed1i \u01b0u Azimuth<\/li>\n<li>gi\u1ea3m Beam Overlap<\/li>\n<li>\u0111i\u1ec1u ch\u1ec9nh Tilt<\/li>\n<li>tinh ch\u1ec9nh c\u00f4ng su\u1ea5t<\/li>\n<li>t\u1ed1i \u01b0u HO Margin<\/li>\n<li>ki\u1ec3m tra b\u1eb1ng Drive Test v\u00e0 Walk Test<\/li>\n<\/ul>\n<p><strong>T\u1ed1i \u01b0u sau khi c\u00f3 d\u1eef li\u1ec7u th\u1ef1c t\u1ebf<\/strong><\/p>\n<p>Kh\u00f4ng c\u00f3 m\u00f4 h\u00ecnh m\u00f4 ph\u1ecfng n\u00e0o ph\u1ea3n \u00e1nh ho\u00e0n to\u00e0n h\u00e0nh vi c\u1ee7a 80.000\u2013120.000 ng\u01b0\u1eddi trong c\u00f9ng m\u1ed9t th\u1eddi \u0111i\u1ec3m.<\/p>\n<p>Sau m\u1ed7i s\u1ef1 ki\u1ec7n c\u1ea7n thu th\u1eadp v\u00e0 ph\u00e2n t\u00edch:<\/p>\n<ul>\n<li>PRB Utilization<\/li>\n<li>DL\/UL Throughput<\/li>\n<li>CQI Distribution<\/li>\n<li>SINR<\/li>\n<li>RSRP<\/li>\n<li>RSRQ<\/li>\n<li>BLER<\/li>\n<li>Handover Success Rate<\/li>\n<li>Call Drop Rate<\/li>\n<li>Accessibility<\/li>\n<li>Retainability<\/li>\n<li>Traffic Heatmap<\/li>\n<\/ul>\n<p>D\u1ef1a tr\u00ean d\u1eef li\u1ec7u n\u00e0y, \u0111\u1ed9i ng\u0169 RF s\u1ebd:<\/p>\n<ul>\n<li>\u0111i\u1ec1u ch\u1ec9nh c\u00f4ng su\u1ea5t<\/li>\n<li>thay \u0111\u1ed5i PCI<\/li>\n<li>c\u1eadp nh\u1eadt Neighbor Relation<\/li>\n<li>tinh ch\u1ec9nh handover<\/li>\n<li>c\u00e2n b\u1eb1ng t\u1ea3i gi\u1eefa c\u00e1c sector<\/li>\n<li>t\u1ed1i \u01b0u c\u1ea5u h\u00ecnh MIMO v\u00e0 carrier<\/li>\n<\/ul>\n<p>\u0110\u00e2y l\u00e0 quy tr\u00ecnh t\u1ed1i \u01b0u l\u1eb7p (continuous optimization) nh\u1eb1m \u0111\u01b0a h\u1ec7 th\u1ed1ng \u0111\u1ea1t hi\u1ec7u su\u1ea5t cao nh\u1ea5t trong c\u00e1c s\u1ef1 ki\u1ec7n ti\u1ebfp theo.<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Gi\u1edbi thi\u1ec7u M\u1ed9t s\u00e2n v\u1eadn \u0111\u1ed9ng hi\u1ec7n \u0111\u1ea1i v\u1edbi s\u1ee9c ch\u1ee9a t\u1eeb 70.000 \u0111\u1ebfn h\u01a1n 120.000 kh\u00e1n gi\u1ea3 l\u00e0 m\u1ed9t trong nh\u1eefng m\u00f4i tr\u01b0\u1eddng vi\u1ec5n th\u00f4ng c\u00f3 m\u1eadt \u0111\u1ed9 ng\u01b0\u1eddi d\u00f9ng cao nh\u1ea5t hi\u1ec7n nay. Trong c\u00e1c s\u1ef1 ki\u1ec7n th\u1ec3 thao, concert hay l\u1ec5 h\u1ed9i, h\u00e0ng ch\u1ee5c ngh\u00ecn thi\u1ebft b\u1ecb di \u0111\u1ed9ng c\u00f9ng l\u00fac livestream,&#8230;<\/p>\n","protected":false},"author":2,"featured_media":47956,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[3703,3705],"tags":[],"class_list":["post-47955","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>Sector h\u00f3a s\u00e2n v\u1eadn \u0111\u1ed9ng: L\u00e0m th\u1ebf n\u00e0o ph\u1ee5c v\u1ee5 h\u00e0ng ch\u1ee5c ngh\u00ecn thu\u00ea bao c\u00f9ng l\u00fac? Sector h\u00f3a s\u00e2n v\u1eadn \u0111\u1ed9ng: L\u00e0m th\u1ebf n\u00e0o ph\u1ee5c v\u1ee5 h\u00e0ng ch\u1ee5c ngh\u00ecn thu\u00ea bao c\u00f9ng l\u00fac?<\/title>\n<meta name=\"description\" content=\"\u0110\u1ed1i v\u1edbi s\u00e2n v\u1eadn \u0111\u1ed9ng quy m\u00f4 70.000\u2013120.000 ch\u1ed7 ng\u1ed3i, s\u1ed1 l\u01b0\u1ee3ng sector kh\u00f4ng n\u00ean \u0111\u01b0\u1ee3c x\u00e1c \u0111\u1ecbnh b\u1eb1ng m\u1ed9t t\u1ef7 l\u1ec7 c\u1ed1 \u0111\u1ecbnh theo s\u1ed1 gh\u1ebf. Nh\u00e0 th\u1ea7u c\u1ea7n d\u1ef1a tr\u00ean ph\u1ed5 t\u1ea7n c\u1ee7a t\u1eebng nh\u00e0 m\u1ea1ng, carrier bandwidth, c\u1ea5u h\u00ecnh MIMO, traffic model, m\u1ee9c t\u1ea3i m\u1ee5c ti\u00eau v\u00e0 y\u00eau c\u1ea7u t\u1ed1c \u0111\u1ed9 t\u1ed1i thi\u1ec3u \u0111\u1ec3 x\u00e1c \u0111\u1ecbnh ki\u1ebfn tr\u00fac RF t\u1ed1i \u01b0u.M\u1ed9t thi\u1ebft k\u1ebf th\u00e0nh c\u00f4ng kh\u00f4ng ph\u1ea3i l\u00e0 thi\u1ebft k\u1ebf c\u00f3 nhi\u1ec1u anten nh\u1ea5t, m\u00e0 l\u00e0 thi\u1ebft k\u1ebf chia \u0111\u00fang cell, ph\u00e2n b\u1ed5 \u0111\u00fang dung l\u01b0\u1ee3ng v\u00e0 ki\u1ec3m so\u00e1t nhi\u1ec5u hi\u1ec7u qu\u1ea3. Khi sector h\u00f3a \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n khoa h\u1ecdc, h\u1ec7 th\u1ed1ng c\u00f3 th\u1ec3 duy tr\u00ec ch\u1ea5t l\u01b0\u1ee3ng d\u1ecbch v\u1ee5 \u1ed5n \u0111\u1ecbnh ngay c\u1ea3 khi h\u00e0ng ch\u1ee5c ngh\u00ecn thu\u00ea bao \u0111\u1ed3ng th\u1eddi truy c\u1eadp m\u1ea1ng trong nh\u1eefng th\u1eddi \u0111i\u1ec3m cao \u0111i\u1ec3m nh\u1ea5t.\u00a0 \u00a0\" \/>\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\/sector-hoa-san-van-dong-lam-the-nao-phuc-vu-hang-chuc-nghin-thue-bao-cung-luc\/\" \/>\n<meta property=\"og:locale\" content=\"vi_VN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Sector h\u00f3a s\u00e2n v\u1eadn \u0111\u1ed9ng: L\u00e0m th\u1ebf n\u00e0o ph\u1ee5c v\u1ee5 h\u00e0ng ch\u1ee5c ngh\u00ecn thu\u00ea bao c\u00f9ng l\u00fac? Sector h\u00f3a s\u00e2n v\u1eadn \u0111\u1ed9ng: L\u00e0m th\u1ebf n\u00e0o ph\u1ee5c v\u1ee5 h\u00e0ng ch\u1ee5c ngh\u00ecn thu\u00ea bao c\u00f9ng l\u00fac?\" \/>\n<meta property=\"og:description\" content=\"\u0110\u1ed1i v\u1edbi s\u00e2n v\u1eadn \u0111\u1ed9ng quy m\u00f4 70.000\u2013120.000 ch\u1ed7 ng\u1ed3i, s\u1ed1 l\u01b0\u1ee3ng sector kh\u00f4ng n\u00ean \u0111\u01b0\u1ee3c x\u00e1c \u0111\u1ecbnh b\u1eb1ng m\u1ed9t t\u1ef7 l\u1ec7 c\u1ed1 \u0111\u1ecbnh theo s\u1ed1 gh\u1ebf. Nh\u00e0 th\u1ea7u c\u1ea7n d\u1ef1a tr\u00ean ph\u1ed5 t\u1ea7n c\u1ee7a t\u1eebng nh\u00e0 m\u1ea1ng, carrier bandwidth, c\u1ea5u h\u00ecnh MIMO, traffic model, m\u1ee9c t\u1ea3i m\u1ee5c ti\u00eau v\u00e0 y\u00eau c\u1ea7u t\u1ed1c \u0111\u1ed9 t\u1ed1i thi\u1ec3u \u0111\u1ec3 x\u00e1c \u0111\u1ecbnh ki\u1ebfn tr\u00fac RF t\u1ed1i \u01b0u.M\u1ed9t thi\u1ebft k\u1ebf th\u00e0nh c\u00f4ng kh\u00f4ng ph\u1ea3i l\u00e0 thi\u1ebft k\u1ebf c\u00f3 nhi\u1ec1u anten nh\u1ea5t, m\u00e0 l\u00e0 thi\u1ebft k\u1ebf chia \u0111\u00fang cell, ph\u00e2n b\u1ed5 \u0111\u00fang dung l\u01b0\u1ee3ng v\u00e0 ki\u1ec3m so\u00e1t nhi\u1ec5u hi\u1ec7u qu\u1ea3. 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