{"id":47919,"date":"2026-07-28T15:34:11","date_gmt":"2026-07-28T08:34:11","guid":{"rendered":"https:\/\/vinastech.vn\/?p=47919"},"modified":"2026-07-28T15:34:11","modified_gmt":"2026-07-28T08:34:11","slug":"khao-sat-song-di-dong-chuyen-nghiep-buoc-dau-quyet-dinh-thanh-cong-cua-he-thong-kich-song","status":"publish","type":"post","link":"https:\/\/vinastech.vn\/khao-sat-song-di-dong-chuyen-nghiep-buoc-dau-quyet-dinh-thanh-cong-cua-he-thong-kich-song\/","title":{"rendered":"Kh\u1ea3o s\u00e1t s\u00f3ng di \u0111\u1ed9ng chuy\u00ean nghi\u1ec7p: B\u01b0\u1edbc \u0111\u1ea7u quy\u1ebft \u0111\u1ecbnh th\u00e0nh c\u00f4ng c\u1ee7a h\u1ec7 th\u1ed1ng k\u00edch s\u00f3ng"},"content":{"rendered":"

Trong k\u1ef7 nguy\u00ean chuy\u1ec3n \u0111\u1ed5i s\u1ed1 v\u00e0 k\u1ebft n\u1ed1i kh\u00f4ng d\u00e2y to\u00e0n di\u1ec7n, s\u00f3ng \u0111i\u1ec7n tho\u1ea1i di \u0111\u1ed9ng (2G, 3G, 4G, 5G) \u0111\u00e3 tr\u1edf th\u00e0nh h\u1ea1 t\u1ea7ng thi\u1ebft y\u1ebfu t\u01b0\u01a1ng t\u1ef1 nh\u01b0 \u0111i\u1ec7n v\u00e0 n\u01b0\u1edbc. Tuy nhi\u00ean, hi\u1ec7n t\u01b0\u1ee3ng “v\u00f9ng l\u00f5m s\u00f3ng”<\/strong> (dead zones) v\u1eabn ph\u1ed5 bi\u1ebfn t\u1ea1i c\u00e1c t\u00f2a nh\u00e0 cao t\u1ea7ng, t\u1ea7ng h\u1ea7m, khu v\u1ef1c v\u00f9ng s\u00e2u v\u00f9ng xa ho\u1eb7c c\u00e1c c\u00f4ng tr\u00ecnh c\u00f3 k\u1ebft c\u1ea5u b\u00ea t\u00f4ng c\u1ed1t th\u00e9p ki\u00ean c\u1ed1.<\/p>\n

\"\"<\/p>\n

\u0110\u1ec3 gi\u1ea3i quy\u1ebft tri\u1ec7t \u0111\u1ec3 v\u1ea5n \u0111\u1ec1 n\u00e0y, h\u1ec7 th\u1ed1ng k\u00edch s\u00f3ng di \u0111\u1ed9ng (Mobile Signal Booster \/ Repeater)<\/strong> ra \u0111\u1eddi nh\u01b0 m\u1ed9t v\u1ecb c\u1ee9u tinh. D\u00f9 v\u1eady, m\u1ed9t thi\u1ebft b\u1ecb k\u00edch s\u00f3ng d\u00f9 \u0111\u1eaft ti\u1ec1n \u0111\u1ebfn \u0111\u00e2u c\u0169ng tr\u1edf n\u00ean v\u00f4 gi\u00e1 tr\u1ecb, th\u1eadm ch\u00ed ph\u1ea3n t\u00e1c d\u1ee5ng, n\u1ebfu thi\u1ebfu \u0111i m\u1ed9t b\u01b0\u1edbc: Kh\u1ea3o s\u00e1t s\u00f3ng di \u0111\u1ed9ng chuy\u00ean nghi\u1ec7p<\/strong>.<\/p>\n

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  1. H\u1ec7 th\u1ed1ng k\u00edch s\u00f3ng di \u0111\u1ed9ng ho\u1ea1t \u0111\u1ed9ng nh\u01b0 th\u1ebf n\u00e0o?<\/strong><\/li>\n<\/ol>\n

    \"\"<\/p>\n

    Tr\u01b0\u1edbc khi \u0111i s\u00e2u v\u00e0o vai tr\u00f2 c\u1ee7a kh\u00e2u kh\u1ea3o s\u00e1t, c\u1ea7n hi\u1ec3u r\u00f5 b\u1ea3n ch\u1ea5t c\u1ee7a h\u1ec7 th\u1ed1ng k\u00edch s\u00f3ng. M\u1ed9t h\u1ec7 th\u1ed1ng ti\u00eau chu\u1ea9n bao g\u1ed3m ba th\u00e0nh ph\u1ea7n ch\u00ednh:<\/p>\n

      \n
    • Anten thu (Donor Antenna):<\/strong> Th\u01b0\u1eddng \u0111\u1eb7t \u1edf ngo\u00e0i tr\u1eddi (n\u01a1i c\u00f3 t\u00edn hi\u1ec7u t\u1ed1t nh\u1ea5t) \u0111\u1ec3 b\u1eaft s\u00f3ng tr\u1ef1c ti\u1ebfp t\u1eeb c\u00e1c tr\u1ea1m ph\u00e1t g\u1ed1c (BTS) c\u1ee7a nh\u00e0 m\u1ea1ng.<\/li>\n
    • B\u1ed9 khu\u1ebfch \u0111\u1ea1i t\u00edn hi\u1ec7u (Booster \/ Repeater):<\/strong> Nh\u1eadn t\u00edn hi\u1ec7u t\u1eeb anten thu, x\u1eed l\u00fd, l\u1ecdc nhi\u1ec5u v\u00e0 khu\u1ebfch \u0111\u1ea1i c\u01b0\u1eddng \u0111\u1ed9 t\u00edn hi\u1ec7u l\u00ean m\u1ee9c \u0111\u1ee7 m\u1ea1nh.<\/li>\n
    • Anten ph\u00e1t (Server Antenna):<\/strong> \u0110\u1eb7t b\u00ean trong t\u00f2a nh\u00e0\/Khu v\u1ef1c c\u1ea7n ph\u1ee7 s\u00f3ng \u0111\u1ec3 ph\u00e1t l\u1ea1i t\u00edn hi\u1ec7u \u0111\u00e3 khu\u1ebfch \u0111\u1ea1i \u0111\u1ebfn c\u00e1c thi\u1ebft b\u1ecb di \u0111\u1ed9ng c\u1ee7a ng\u01b0\u1eddi d\u00f9ng.<\/li>\n<\/ul>\n

      H\u1ec7 th\u1ed1ng n\u00e0y ho\u1ea1t \u0111\u1ed9ng theo nguy\u00ean l\u00fd hai chi\u1ec1u (Full-duplex): Thu v\u00e0 ph\u00e1t cho c\u1ea3 chi\u1ec1u \u0111\u01b0\u1eddng xu\u1ed1ng (Downlink – t\u1eeb tr\u1ea1m BTS v\u1ec1 m\u00e1y \u0111i\u1ec7n tho\u1ea1i) v\u00e0 \u0111\u01b0\u1eddng l\u00ean (Uplink – t\u1eeb \u0111i\u1ec7n tho\u1ea1i v\u1ec1 tr\u1ea1m BTS).<\/p>\n

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      1. V\u00ec sao kh\u1ea3o s\u00e1t s\u00f3ng chuy\u00ean nghi\u1ec7p l\u00e0 “ch\u00eca kh\u00f3a v\u00e0ng”?<\/strong><\/li>\n<\/ol>\n

        \"\"<\/p>\n

        Nhi\u1ec1u nh\u00e0 \u0111\u1ea7u t\u01b0 th\u01b0\u1eddng m\u1eafc sai l\u1ea7m khi mua \u0111\u1ea1i m\u1ed9t thi\u1ebft b\u1ecb k\u00edch s\u00f3ng tr\u00f4i n\u1ed5i tr\u00ean th\u1ecb tr\u01b0\u1eddng v\u00e0 t\u1ef1 l\u1eafp \u0111\u1eb7t. K\u1ebft qu\u1ea3 th\u01b0\u1eddng l\u00e0: s\u00f3ng v\u1eabn y\u1ebfu, thi\u1ebft b\u1ecb k\u00eau t\u00edt t\u00edt b\u00e1o l\u1ed7i (t\u1ef1 k\u00edch \u0111\u1ed9ng – oscillation), ho\u1eb7c l\u00e0m nhi\u1ec5u s\u00f3ng tr\u1ea1m BTS c\u1ee7a nh\u00e0 m\u1ea1ng khi\u1ebfn c\u01a1 quan qu\u1ea3n l\u00fd vi\u1ec5n th\u00f4ng x\u1eed ph\u1ea1t.<\/p>\n

        M\u1ed9t quy tr\u00ecnh kh\u1ea3o s\u00e1t s\u00f3ng chuy\u00ean nghi\u1ec7p (Site Survey)<\/strong> gi\u1ea3i quy\u1ebft c\u00e1c b\u00e0i to\u00e1n c\u1ed1t l\u00f5i sau:<\/p>\n

        \u0110o \u0111\u1ea1c ch\u00ednh x\u00e1c b\u1ee9c tranh ph\u1ed5 t\u1ea7n t\u1ea1i hi\u1ec7n tr\u01b0\u1eddng<\/strong><\/p>\n

        T\u00edn hi\u1ec7u di \u0111\u1ed9ng thay \u0111\u1ed5i theo t\u1eebng m\u00e9t vu\u00f4ng, t\u1eebng t\u1ea7ng nh\u00e0 v\u00e0 t\u1eebng th\u1eddi \u0111i\u1ec3m trong ng\u00e0y. K\u1ef9 s\u01b0 kh\u1ea3o s\u00e1t s\u1eed d\u1ee5ng c\u00e1c thi\u1ebft b\u1ecb chuy\u00ean d\u1ee5ng (nh\u01b0 m\u00e1y \u0111o c\u01b0\u1eddng \u0111\u1ed9 t\u00edn hi\u1ec7u RF, ph\u1ea7n m\u1ec1m drive test, spectrum analyzer) \u0111\u1ec3 x\u00e1c \u0111\u1ecbnh:<\/p>\n

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        • C\u01b0\u1eddng \u0111\u1ed9 t\u00edn hi\u1ec7u th\u1ef1c t\u1ebf (RSRP, RSRQ, SINR \u0111\u1ed1i v\u1edbi 4G\/5G).<\/li>\n
        • C\u00e1c b\u0103ng t\u1ea7n \u0111ang ho\u1ea1t \u0111\u1ed9ng c\u1ee7a t\u1eebng nh\u00e0 m\u1ea1ng (Viettel, MobiFone, VinaPhone, Vietnamobile…).<\/li>\n
        • H\u01b0\u1edbng c\u1ee7a c\u00e1c tr\u1ea1m BTS l\u00e2n c\u1eadn \u0111\u1ec3 ch\u1ecdn v\u1ecb tr\u00ed \u0111\u1eb7t anten thu t\u1ed1i \u01b0u nh\u1ea5t.<\/li>\n<\/ul>\n

          Khoanh v\u00f9ng v\u00e0 ph\u00e2n t\u00edch “v\u00f9ng l\u00f5m”<\/strong><\/p>\n

          Kh\u00f4ng ph\u1ea3i m\u1ecdi khu v\u1ef1c y\u1ebfu s\u00f3ng \u0111\u1ec1u c\u1ea7n gi\u1ea3i ph\u00e1p gi\u1ed1ng nhau. Kh\u1ea3o s\u00e1t gi\u00fap x\u00e1c \u0111\u1ecbnh:<\/p>\n

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          • V\u00f9ng n\u00e0o c\u1ea7n ph\u1ee7 s\u00f3ng g\u1ea5p (ph\u00f2ng h\u1ecdp, t\u1ea7ng h\u1ea7m B2, l\u00f5i thang m\u00e1y).<\/li>\n
          • V\u00f9ng n\u00e0o t\u00edn hi\u1ec7u \u0111\u00e3 \u1ed5n \u0111\u1ecbnh (tr\u00e1nh l\u1eafp \u0111\u1eb7t th\u1eeba th\u00e3i g\u00e2y l\u00e3ng ph\u00ed v\u00e0 nhi\u1ec5u ch\u00e9o).<\/li>\n<\/ul>\n

            \u0110\u00e1nh gi\u00e1 nguy c\u01a1 nhi\u1ec5u v\u00e0 ph\u1ea3n h\u1ed3i (Oscillation)<\/strong><\/p>\n

            \u0110\u00e2y l\u00e0 k\u1ef9 thu\u1eadt quan tr\u1ecdng nh\u1ea5t c\u1ee7a chuy\u00ean gia. N\u1ebfu anten thu v\u00e0 anten ph\u00e1t \u0111\u1eb7t qu\u00e1 g\u1ea7n nhau ho\u1eb7c kh\u00f4ng \u0111\u01b0\u1ee3c c\u00f4 l\u1eadp b\u1edfi v\u1eadt c\u1ea3n, t\u00edn hi\u1ec7u s\u1ebd t\u1ea1o th\u00e0nh v\u00f2ng l\u1eb7p v\u00f4 t\u1eadn (feedback), g\u00e2y ra hi\u1ec7n t\u01b0\u1ee3ng ngh\u1ebdn m\u1ea1ng to\u00e0n c\u1ee5c cho tr\u1ea1m BTS c\u1ee7a nh\u00e0 m\u1ea1ng. Kh\u1ea3o s\u00e1t chuy\u00ean nghi\u1ec7p gi\u00fap t\u00ednh to\u00e1n ch\u00ednh x\u00e1c kho\u1ea3ng c\u00e1ch ly v\u00e0 g\u00f3c l\u1eafp \u0111\u1eb7t \u0111\u1ec3 tri\u1ec7t ti\u00eau nguy c\u01a1 n\u00e0y.<\/p>\n

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            1. H\u1eadu qu\u1ea3 kh\u00f4n l\u01b0\u1eddng c\u1ee7a vi\u1ec7c b\u1ecf qua b\u01b0\u1edbc kh\u1ea3o s\u00e1t<\/strong><\/li>\n<\/ol>\n

              \"\"<\/p>\n

              Vi\u1ec7c xem nh\u1eb9 kh\u00e2u kh\u1ea3o s\u00e1t ban \u0111\u1ea7u d\u1eabn \u0111\u1ebfn h\u1ec7 l\u1ee5y d\u00e2y chuy\u1ec1n cho to\u00e0n b\u1ed9 d\u1ef1 \u00e1n:<\/p>\n

              “L\u00e0m sai t\u1eeb b\u01b0\u1edbc kh\u1ea3o s\u00e1t, m\u1ecdi gi\u1ea3i ph\u00e1p k\u1ef9 thu\u1eadt ph\u00eda sau \u0111\u1ec1u tr\u1edf th\u00e0nh v\u00f4 ngh\u0129a.”<\/strong><\/p>\n

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              • L\u00e3ng ph\u00ed t\u00e0i ch\u00ednh:<\/strong> Mua thi\u1ebft b\u1ecb qu\u00e1 c\u00f4ng su\u1ea5t cho khu v\u1ef1c nh\u1ecf, ho\u1eb7c mua thi\u1ebft b\u1ecb thi\u1ebfu b\u0103ng t\u1ea7n khi\u1ebfn nh\u00e0 m\u1ea1ng n\u00e0y c\u00f3 s\u00f3ng m\u00e0 nh\u00e0 m\u1ea1ng kh\u00e1c v\u1eabn “m\u1ea5t t\u00edch”.<\/li>\n
              • H\u01b0 h\u1ecfng thi\u1ebft b\u1ecb:<\/strong> B\u1ed9 khu\u1ebfch \u0111\u1ea1i ho\u1ea1t \u0111\u1ed9ng qu\u00e1 t\u1ea3i do nhi\u1ec5u t\u1ef1 k\u00edch \u0111\u1ed9ng s\u1ebd nhanh ch\u00f3ng b\u1ecb ch\u00e1y c\u00f4ng su\u1ea5t.<\/li>\n
              • Vi ph\u1ea1m ph\u00e1p lu\u1eadt vi\u1ec5n th\u00f4ng:<\/strong> T\u1ea1i Vi\u1ec7t Nam, vi\u1ec7c l\u1eafp \u0111\u1eb7t thi\u1ebft b\u1ecb k\u00edch s\u00f3ng g\u00e2y nhi\u1ec5u s\u00f3ng di \u0111\u1ed9ng c\u00f4ng c\u1ed9ng l\u00e0 h\u00e0nh vi vi ph\u1ea1m Lu\u1eadt Vi\u1ec5n th\u00f4ng. C\u1ee5c Vi\u1ec5n th\u00f4ng ho\u1eb7c c\u00e1c nh\u00e0 m\u1ea1ng c\u00f3 th\u1ec3 ti\u1ebfn h\u00e0nh qu\u00e9t s\u00f3ng, t\u00ecm ra ngu\u1ed3n nhi\u1ec5u v\u00e0 x\u1eed ph\u1ea1t h\u00e0nh ch\u00ednh, th\u1eadm ch\u00ed t\u1ecbch thu thi\u1ebft b\u1ecb.<\/li>\n<\/ul>\n
                  \n
                1. Quy tr\u00ecnh kh\u1ea3o s\u00e1t s\u00f3ng chuy\u00ean nghi\u1ec7p chu\u1ea9n qu\u1ed1c t\u1ebf<\/strong><\/li>\n<\/ol>\n

                  \"\"<\/p>\n

                  \u0110\u1ec3 \u0111\u1ea3m b\u1ea3o th\u00e0nh c\u00f4ng cho h\u1ec7 th\u1ed1ng k\u00edch s\u00f3ng, m\u1ed9t cu\u1ed9c kh\u1ea3o s\u00e1t chuy\u00ean s\u00e2u c\u1ea7n tu\u00e2n th\u1ee7 c\u00e1c b\u01b0\u1edbc:<\/p>\n

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                  1. Thu th\u1eadp y\u00eau c\u1ea7u \u0111\u1ea7u b\u00e0i:<\/strong> Di\u1ec7n t\u00edch c\u1ea7n ph\u1ee7 s\u00f3ng, s\u1ed1 l\u01b0\u1ee3ng ng\u01b0\u1eddi d\u00f9ng \u0111\u1ed3ng th\u1eddi, c\u00e1c nh\u00e0 m\u1ea1ng c\u1ea7n h\u1ed7 tr\u1ee3 (2G\/3G\/4G\/5G).<\/li>\n
                  2. Kh\u1ea3o s\u00e1t ngo\u1ea1i vi (Outdoor Survey):<\/strong> \u0110o \u0111\u1ea1c c\u01b0\u1eddng \u0111\u1ed9 s\u00f3ng t\u1ea1i c\u00e1c v\u1ecb tr\u00ed m\u00e1i nh\u00e0, ban c\u00f4ng, c\u1ed9t anten d\u1ef1 ki\u1ebfn \u0111\u1ec3 t\u00ecm ra h\u01b0\u1edbng c\u00f3 s\u00f3ng t\u1ed1t nh\u1ea5t, s\u1ea1ch nhi\u1ec5u nh\u1ea5t.<\/li>\n
                  3. Kh\u1ea3o s\u00e1t n\u1ed9i vi (Indoor Survey):<\/strong> Di chuy\u1ec3n qua t\u1eebng ph\u00f2ng, t\u1eebng h\u00e0nh lang, t\u1ea7ng h\u1ea7m \u0111\u1ec3 l\u1eadp b\u1ea3n \u0111\u1ed3 nhi\u1ec7t (Heatmap) th\u1ec3 hi\u1ec7n m\u1ee9c \u0111\u1ed9 ph\u1ee7 s\u00f3ng hi\u1ec7n t\u1ea1i.<\/li>\n
                  4. L\u00ean ph\u01b0\u01a1ng \u00e1n thi\u1ebft k\u1ebf (Design & Planning):<\/strong>\n
                      \n
                    • L\u1ef1a ch\u1ecdn lo\u1ea1i Booster ph\u00f9 h\u1ee3p (c\u00f4ng su\u1ea5t, s\u1ed1 band t\u1ea7n).<\/li>\n
                    • T\u00ednh to\u00e1n s\u1ed1 l\u01b0\u1ee3ng, ch\u1ee7ng lo\u1ea1i anten ph\u00e2n ph\u1ed1i (Omni ceiling antenna, Directional panel antenna).<\/li>\n
                    • Thi\u1ebft k\u1ebf s\u01a1 \u0111\u1ed3 tuy\u1ebfn c\u00e1p \u0111\u1ed3ng tr\u1ee5c, b\u1ed9 chia t\u00edn hi\u1ec7u (Splitter\/Coupler) sao cho suy hao t\u00edn hi\u1ec7u l\u00e0 th\u1ea5p nh\u1ea5t.<\/li>\n<\/ul>\n<\/li>\n
                    • B\u00e1o c\u00e1o kh\u1ea3o s\u00e1t chi ti\u1ebft (Survey Report):<\/strong> Cung c\u1ea5p cho ch\u1ee7 \u0111\u1ea7u t\u01b0 s\u01a1 \u0111\u1ed3 b\u1ea3n v\u1ebd k\u1ef9 thu\u1eadt, danh m\u1ee5c v\u1eadt t\u01b0 v\u00e0 d\u1ef1 to\u00e1n chi ph\u00ed ch\u00ednh x\u00e1c.<\/li>\n<\/ol>\n

                       <\/p>\n","protected":false},"excerpt":{"rendered":"

                      Kh\u1ea3o s\u00e1t s\u00f3ng di \u0111\u1ed9ng chuy\u00ean nghi\u1ec7p l\u00e0 b\u01b0\u1edbc n\u1ec1n t\u1ea3ng quy\u1ebft \u0111\u1ecbnh th\u00e0nh c\u00f4ng c\u1ee7a h\u1ec7 th\u1ed1ng k\u00edch s\u00f3ng, gi\u00fap t\u1ed1i \u01b0u hi\u1ec7u su\u1ea5t v\u00e0 tr\u00e1nh g\u00e2y nhi\u1ec5u m\u1ea1ng. B\u00e0i vi\u1ebft n\u00e0y ph\u00e2n t\u00edch t\u1ea7m quan tr\u1ecdng c\u1ee7a vi\u1ec7c kh\u1ea3o s\u00e1t hi\u1ec7n tr\u1ea1ng v\u00f4 tuy\u1ebfn tr\u01b0\u1edbc khi l\u1eafp \u0111\u1eb7t thi\u1ebft b\u1ecb l\u1eb7p s\u00f3ng.<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[3703,3705],"tags":[],"class_list":["post-47919","post","type-post","status-publish","format-standard","hentry","category-dien-nhe","category-kich-song"],"yoast_head":"\nKh\u1ea3o s\u00e1t s\u00f3ng di \u0111\u1ed9ng chuy\u00ean nghi\u1ec7p: B\u01b0\u1edbc \u0111\u1ea7u quy\u1ebft \u0111\u1ecbnh th\u00e0nh c\u00f4ng c\u1ee7a h\u1ec7 th\u1ed1ng k\u00edch s\u00f3ng Kh\u1ea3o s\u00e1t h\u1ec7 th\u1ed1ng k\u00edch s\u00f3ng<\/title>\n<meta name=\"description\" content=\"Trong k\u1ef7 nguy\u00ean chuy\u1ec3n \u0111\u1ed5i s\u1ed1 v\u00e0 k\u1ebft n\u1ed1i kh\u00f4ng d\u00e2y to\u00e0n di\u1ec7n, s\u00f3ng \u0111i\u1ec7n tho\u1ea1i di \u0111\u1ed9ng (2G, 3G, 4G, 5G) \u0111\u00e3 tr\u1edf th\u00e0nh h\u1ea1 t\u1ea7ng thi\u1ebft y\u1ebfu t\u01b0\u01a1ng t\u1ef1 nh\u01b0 \u0111i\u1ec7n v\u00e0 n\u01b0\u1edbc. 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