Bo co thc tp tt nghip

Bo co thc tp tt nghip

Bo co thc tp tt nghip

Mc lcMc lc1Li m u2Gii thiu v cng ty TASA.31 gii thiu chung32 Cc lnh vc hot ng43 M hnh t chc ca cng ty TASA53 i tc ca cng ty TASA6Ni dung thc tp trong t thc tp ti cng ty TASA7Danh mc cc t vit tc8Chng 1 :S LC V T BTS 3900 CA HUAWEI91Cu trc h thng t BTS 39009Hnh1.1 :cu trc t BTS 3900101.1chc nng cc thnh phn trong t BTS101.1.1BBU (baseband unit)10Hnh 1.2 module BBU 390011Hnh 1.3 board UEIU11Hnh 1.4 board GTMU12Hnh 1.5: board UELP13Hnh 1.6: bng UBFA13Hnh 1.7: board UPEA14Hnh 1.8: booard UPEB141.1.2DRFU (double radio filter unit)14Hnh 1.9: bng DRFU14Hnh 1.10: cu trc chc nng ca DRFU15Hnh 1.11: board GAMT16Hnh 1.12 : Board FAN unit17Chng 2 : QUY TRNH LP T BTS 3900182.lp t phn oudoor182.1.1 lp t antena18Hnh 2.1: hnh nh cho anten trm single18Hnh 2.2: vng chng st ca antena18Hnh 2.3:thang cp ng cch192.1.2 lp t jumper outdoor19Hnh 2.4:19Hnh 2.5 qun u connecter bng caosu non20Hnh 2.6: qun caosunon v buc lc cc si jumper21Hnh 2.7 : ni thang cp tip xc vo nh i phi c bt kn222.1.3 chnh hng v chnh tilt ca anten.22Hnh 2.8: dng c chnh tiu v chnh hng ca anten.22Hnh 2.8: tip t vo tr anten loi tr ng23Hnh 2.9: tip t tr dy co23Hnh 2.10:242.2 lp t indoor242.2.1 lp t cu cp24Hnh 2.11 thang cp trong nh242.2.2 lp t t BTS 390025Hnh 2.12 :cch lp t t BTS ng cch25Hnh 2.13: phn b dy cp trn t ng cch26Hnh 2.14 lp t cu hnh cho t BTS26Hnh 2.14 cu hnh 2/2/227Hnh 2.15 cu hnh 4/4/428Cc loi cu hnh topo ca BTS 390028* topo dng sao28* topo dng chui29* Topo dng cy30* topo dng vng302.2.4 cch u ni trong card BBU31Hnh 2.16: cch u ni trong card BBU31Hnh 2.1732Hnh 2.18: quy lut mu cho truyn n322.2.5 Cch u ni trong card UPEU.34Hnh 2.19 : cch u ni card UPEU352.3 cch u cnh bo.352.4 lp t t ngun .35Hnh 2.20 minh ha cc bc u ni ngun cho BTS36Hnh 2.21 : cc loi cp ni cho ngun37LI CM N38

Li m uNh chng ta bit ngy nay x hi ngy cng pht trin v hin i ha, nhu cu trao i thng tin t xa em li rt nhiu tin ch v thi gian cng nh tnh nng ng sng to ca con ngi nhm m bo hon thnh cng vic mt cch tt nht v nhanh nht. phc v cho nhu cu trao i thng tin nh vy con ngi xy dng v pht trin h thng thng tin lin lc nh: mng cp quang, cp ng, cc h thng in thoi c nh, h thng truyn thng v tuyn vv.Trong h thng truyn thng v tuyn BTS ng vai tr ht sc quan trng, trm thu pht BTS l mt phn ca thit b to iu kin giao tip khng dy gia ngi dng (UE) vi mng li thng tin di ng.BTS bao gm tt c cc thit b giao tip truyn dn v v tuyn cn thit nh: h thng anten, b khuch i tn v cc thit b s cn thitvv.Trong t thc tp ln ny c tip cn v c lm vic cng vi anh em trong cng ty TASA, c s gip v hng dn ca cc n anh i trc v hc hi c mt t kinh nghim thc tin ..bi bo co ny l nhng g em rt ra sau qu trnh thc tp. hon thnh bi bo co ny em d tham kho ti liuv t 3900 cahng HUAWEI cng vi s gip ca anh em trong b phn k thut ca cng ty TASA.

Gii thiu v cng ty TASA. 1 gii thiu chung Cng ty TNHH TA SA (gi tt l TASA) c thnh lp theo Giy Chng Nhn ng K Kinh Doanh s 0310579482 do S K Hoch v u T Thnh ph H Ch Minh cp ngy 13 thng 01 nm 2011. TASA da trn ton b nn tng cng ty TNHH H.T.V hn 10 nm trong lnh vc vin thng di ng ti Vit Nam. Vi nhim v thay th H.T.V ti th trng Vit Nam v m rng th trng sang cc nc ln cn trong nm 2012 cng nh trong tng lai. Cng ty TASA cung cp y cc dch v v vin thng, c bit l kho st, thit k, xy dng, k thut, lp t, kch hot, bo tr, ti u v cung cp ngun nhn lc cho cc d n vin thng khng dy cng ngh cao. Ngoi ra, cng ty cn c chc nng mua bn my mc, thit b, vt t v dch v t vn trong lnh vc vin thng, pht thanh truyn hnh, in t v tin hc. Sn xut, lp t, bo dng ct anten, sn phm c kh ngnh vin thng, thi cng xy dng cc cng trnh dn dng cng nghip, o kim cc thit b vin thng. Vi i ng nhn vin c trnh chuyn mn cao, tn tm, nhiu kinh nghim kt hp i ng qun l chuyn nghip tng tham gia nhiu d n trong v ngoi nc. ng thi c trang b y cc thit b hin i, cng ty v ang tham gia vo nhiu d n vin thng nh kho st, thit k, lp t, kch hot, vn hnh, bo dng thit b RBS v Truyn Dn. Xy dng thp t ng, thp dy co, lm b g anten phc v lp t cc trm RBS v Microwave cho cc nh cung cp thit b mng vin thng hng u nh Ericsson, Huawei, ZTE, Nortel.

2 Cc lnh vc hot ng Kho st, tm v tr t trm v trm thu pht sng di ng. Kho st, thit k, lm h s trm BTS, Truyn dn : Viba (SDH, PDH) Lp t, kim tra th v kch hot trm BTS, Viba (SDH, PDH) Thu thp v phn tich d liu , ti u ho trm BTS Vn hnh, ng cu, bo tr bo dng thit b BTS, Truyn dn. Lp t cc loi tng i v thit b vin thng: MSC, BSC, OSS Lp t, kim tra v vn hnh h thng thit bi truyn dn quang. Sn xut, lp t, bo dng ct anten, sn phm c kh ngnh vin thng. Lp t, sa cha, bo dng, o kim cc thit b trm thu pht sng di ng, tng i. Thi cng xy dng c s h tng cc trm BTS Sn xut, ch to, lp t, sa cha, bo hnh, bo tr, bo dng, h tr vn hnh cc thit b chuyn ngnh vin thng, bu chnh vin thng, in t, tin hc. Mua bn vt t hng ha, thit b bu chnh - vin thng, in t, tin hc. Cho thu ti sn hot ng, cho thu cc sn phm, thit b bu chnh, vin thng, in t, tin hc. Cung ng v lp t h tng c bn ngnh vin thng Cung ng v qun l ngun lao ng.

3 M hnh t chc ca cng ty TASA

3 i tc ca cng ty TASA+ Ericsson+ Gmobile+ Huawei+Mobifone+Nokia siemens + Viettel+ Vinaphone+ Vietnammobile + ZTE

Ni dung thc tp trong t thc tp ti cng ty TASA

-Trong t thc tp va qua em c anh em k s ca TASA hng dn v ch o lm vic nng cell v lp t them cell mi c th ti cc a im sau:

Bu in VHX Tn Tin , X Tn Tin , Huyn B p, Bnh Phc (ID : BPD003) Kinh : 106,72353, V :11,9251. Trm Vin Thng Ph Ngha, Thn Khc Khoan, Phc Long , Bnh Phc(ID : BPGM14) Kinh : 107,00217. V : 119,1611. Bu cc Sao Bng , c Liu , B ng , Bnh Phc (ID: BPDA15) . Kinh : 107134361 . V : 11709222. Trm Vin Thng Bom Bo , B ng , Bnh Phc (ID : BPDA00) Kinh :107,186841 . V : 11,910265

Danh mc cc t vit tc DCDU-01 (direct current distribution unit) : b cp dng mt chiu DRFU (double radio unit) :b lc sng iFAN(fan UNIT) :qutGATM (GSM transmission & mngemen unit for BBU): b phn qun l v chuyn giao GSM cho BBUPMU (power and enviroment monitoring unit): b phn gim st mi trng v ngunPSU (AC/DC) : b cp ngun ACPSU (DC/DC):b cp ngun DCUBFA(universal BBU fan unit type A(2U)): qut chung cho BBUUE1U(universal enviroment interface unit): b giao din mi trng chungUELP(universal E1/T1 linghtning protection unit): b chng st chungUPEU(universal power and enviroment interface unit): b giao din mi trng v ngun chungBBU (baseband unit): khi bng gc TMA (tower mouted unit): b khuch i nh ct

Chng 1 :S LC V T BTS 3900 CA HUAWEI

1 Cu trc h thng t BTS 3900 BTS 3900 ny bao gm BBU 3900, cc DRFU, t macro, BBU 3900 v DRFUs c c trong t macro

Hnh1.1 :cu trc t BTS 3900

Cc thnh phn BTS 3900 l BBU, DRFU, DCDU-01,GATM, QLDA.PSU v b phn FAN1.1 chc nng cc thnh phn trong t BTS 1.1.1 BBU (baseband unit)-l n v iu khin bang gc cho phptng tc gia cc trm BTS,BSC gm UEIU, GTMU, UELP, UBFA, UPEU. Hnh 1.2 module BBU 3900-UEIU (universal environment interface unit) truyn tn hiu gim st, tn hiu bo ng t cc thit b bn ngoi choboard iu khin chnh.

Hnh 1.3 board UEIUUEIU thc hin cc chc nng sau:+cung cp 2 cng tn hiu RS 485+cung cp 8 cng lin lc bo ng-GTMU (the GSM transmission, timing, and management unit for BBU) iu khin v qun l ton b BTS . N cung cp giao din lin quan n clock tham chiu, ngun cung cp, OM ,v bo ng bn ngoi.

Hnh 1.4 board GTMU GTMU thc hin cc chc nng sau:+ iu khin, duy tr , va iu hnh cc trm BTS+ Cung cp qun l li, qun l cu hnh, qun l hiu sut, v qun l bo mt+ Phn phi v qun l tn hiu clock BTS+ Cung cp u vo clock th nghim+ Cung cp cng ethernet bo tr ni ht+ Cung cp 4 lung E1 u vo+ Cung cp cng CPRI giao tip vi cc m-un RFA-UELP (th describes the universal E1/T1 linghtning protection unit). y l board ty chn c ci t trong cc SLPU hoc BBU. UELP cung cp bo v chng st cho 4 tn hiu E1/T1.

Hnh 1.5: board UELP-UBFA (this describes the universal BBU fan unit type A) chc nng:+ iu khin tc qut cho boaed kim sot chnh+ Pht hin nhit ti l vo khng kh Hnh 1.6: bng UBFA -UPEU (this describes universal power and environment interface unit)+ N chuyn i -48V hoc 24V DC n 12V DC+ Cung cp 2 tn hiu RS485 v 8 bo ng+ Cung cp cc kt ni ngc li bo v cho kt ni cp in UPEU c phn lm 2 loi : UPEA, UPEB Hnh 1.7: board UPEA

Hnh 1.8: booard UPEB 1.1.2 DRFU (double radio filter unit)L mt b lc v tuyn i x l 2 sng mang. DRFU thc hin iu ch v gii iu ch gia cc tn hiu bascband v tn hiu RF, x l d liu, kt hp v chia tn hiu.

Hnh 1.9: bng DRFU T macro dng c cc BBU 3900 v DRFU. Ngoi ra t macro cn cung cp cc chc nng nh phn phi in, tn nhit v tng bo v 002E-DRFU thc hin chc nng sau:+ N iu ch tn hiu baseband n GSM tn hiu RF bng cch s dng chuyn i tn s trc tip cc knh truyn. Sau khi khuch i hoc kch hp cc tn hiu RF,DRFU gi tn hiu n anten truyn.+ N nhn tn hiu RF t anten ba chuyn i cc tn hiu RF thnh tn hiu IF . Sau khi khch i ,chuyn i A/D qua b lc v thc hin automatic gain control (AGC), DRFU s gi cc tn hiu n cc BBU x l+ N thc hin kim sot ngun v pht hin sng ng.+ Pht hin dng ngc li.+ H tr tng hp tn s v kim tra vng lp.+ To ra chng xung clock CPRI, thu hi clock CPRI ca xung ng b b mt,v pht hin bo ng. Hnh 1.10: cu trc chc nng ca DRFU Chc nng ca n v giao din tc cao nh sau+thch ng cc tn hiu t cc BBU cho cc n v x l tn hiu+thch ng cc tn hiu t b phn x l tn hiu cho BBU cc n v x l tn hiu bao gm 2 knh uplink RX, 2 knh downlink TX Cc chc nng ca cc knh uplink RX nh sau+ Down chuyn i tn hiu RF thnh tn hiu IF+ Khuch i cc tn hiu IF v thc hin gii m IQ+ Thc hin chuyn i A/D+ Ly tn hiu s + Thc hin lc+ Thc hin digital automatic gain control (DAGC)+ ng gi d liu Cc chc nng ca cc knh downlink TX nh sau:+ M gi cc tn hiu clock, tn hiu iu khin, v tn hiu d liu t BBU v gi cho cc n v lin quan+ nh hnh v lc cc tn hiu ng xung+ Thc hin chuyn i cc tn hiu RF n bng pht. Cc b khuch i in khuch i tn hiu RF cng sut thp t b phn x l tn hiu. Cc chc nng ca ghp song cng i nh sau:+ Ghp cc tn hiu RX v TX tn hiu+ Kt hp cc tn hiu RX v TX tn hiu chng chia s knh cho anten cng loi.+ Lc cc tn hiu nhn c v cc tn hiu pht GATM(the GSM antena and TMA contraol module ) c chc nng sau:+ Kim sot cc anten RET+ Cung cp in cho TMA+ Bo co tn hiu iu khin bo ng RET+ Giams st hin hanh t cc feeder.

Hnh 1.11: board GAMT DCDU-01 (the direction current distribution unit)+Nhn -48 V DC u vo+ Cung cp cc u ra -48V DC cho cc board v cc module khc trong t+ Cung cp xung bo v qu p.

Cc cng tc ngun DCDU

FAN thng gi ,tn nhit cho t+ Xc nh nhit iu chnh qut

Hnh 1.12 : Board FAN unit -PSU b bin i DC/ DC hoc AC/DC >> to ngun -48 v cung cp cho cc thnh phn.

Chng 2 : QUY TRNH LP T BTS 3900

2. lp t phn oudoor2.1.1 lp t antena Chng ta s dng antena single (bng tng 900 MHZ hoc 1800 MHZ v til in l khng in)Do dng b cm chnh til c cho anten nm pha trn antena c th anten sau khi lp t nhu hnh sau

Hnh 2.1: hnh nh cho anten trm singleLu : tt c cc trm anten phi nm trong vng chng st ca tr anten (chng st trong vng 45 ) nh hnh sau.. Hnh 2.2: vng chng st ca antena

Feeder trc khi a vo phng my phi c vng khng b nc vo phng my nh hnh 2.3 Hnh 2.3:thang cp ng cch 2.1.2 lp t jumper outdoorKhi l t jumper outdoor phi qun bng dnh cn thn sau khi qun xong phi tht cht lt nha v jumber phi c vng gim nc theo feeder xung nh hnh 2.4 Hnh 2.4:

Jumper kt ni vo anten phi chc chn v qun cao su non cn thn v phi buc lt nha bn ngoi v ct d 3mm nh hnh 2.5

Hnh 2.5 qun u connecter bng caosu non

Hnh 2.6: qun caosunon v buc lc cc si jumper

Hnh 2.7 : ni thang cp tip xc vo nh i phi c bt kn 2.1.3 chnh hng v chnh tilt ca anten.

Hnh 2.8: dng c chnh tiu v chnh hng ca anten. Lp t feeder+ feeder phi c lp t cn thn trnh va chm , mo m v kp cp phi ng u khong cch gia 2 hng kp cp l 1m -1,2 m (theo tiu chun 4 tt do VNP ban hnh) Dy tip t cho feeder +feeder phi c lp t 3 im tip t feeder (1 trn nh ct ,2 ti v tr cu cp ngang v tr ,3 ti v tr trc khi i vo l feeder)Nu khong cch t tr anten vo n ca s feeder