CAU TRUC BTS

8/7/2019 CAU TRUC BTS

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KHOI SUMA

Transmission

& Clock

O&M

RI

BSII

SWITCH

2 Mbit/s2 Mbit/s2 Mbit/s

XBCB BCB

MMI

Abis 1

XCLOCK

External interface Internal interface

CLKI

BSII 0,1

KIEN TRUC SUMA


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CHC NANG CUA SUMA

Quan ly link truyen dan Abis (len en 2 giao dien Abis). Tao xung ong ho cho tat ca cac modul BTS

Thc hien chng nang van hanh va bao dng cho

BTS

Quan ly ghep cac d lieu TCH, RSL, OML, QMUX

ieu khien chc nang AC/DC khi chung c tch hp

ben trong BTS

ieu khien nguon (dung lng, ien ap, nhiet o)


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KHOI TRE

KIEN TRUC C S CUA TRE

TRED

TREA

TREPPSI

RFI

CLKI

BSII

BC B PSWITCHLEDSDEBUG

RCD CUI I2CA


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CHC NANG CAC KHOI TRONG TRE:

A. TRED

He thong TRED chieu trach nhiem ve phan so cua TRE:

+ X ly ieu khien va bao hieu, no chu trach nhiem quan lycac chc nang O&M cua TRE.

+ Ghep kenh, nhay tan, mat ma va giai mat ma.

+ Ma hoa.

+ Giai ieu che (DEM).

B. TREAieu che+ ieu khien va bien oi cao tan phan phat+ ong bo phan phat

+ Bien oi trung tan phan thu.+ ong bo phan thu+ Giai ieu che trung tan+ TRE PA board bao gom bo khuech ai cong suat, no amnhiem khuech ai cong suat tn hieu cao tan bi.

C. TREP: Cung cap nguon cho TRE (DC/DC)


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KHOI ANC

CO ININ OD

Duplexer

Fi l t rFi l t r

li t r

Duplexer

Fi l t rFi l t r

li t r

lit r lit r li t rli t r

T T

T

T

T 2

T

T 3

T

T 4

Triri


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CHC NANG KHOI ANC

Modul nay bao gom 2 cau truc giong nhau, moi cau truc baogom:

Antenna: no co chc nang la phat song ra moi trngvo tuyen va thu song t may di ong phat en.

Filter: Loc bo tn hieu khong can thiet. Mot khoi duplexer: dung e ket hp hai hng phat vathu mot antenna.

Mot khoi LNA: khoi nay co chc nang khuech ai tnhieu ma antenna thu c len mc u ln e cho TRE cothe x l c.

Hai khoi Spliter: khoi nay co chc nang tach tn hieu thucua 2 TRE.

WBC:(Wide band combiner) bo nay co chc nang ket hphai ng phat lai vi nhau e i tren cung mot ngen bo duplexer. Thc te ta ch dung bo nay khi ta dunghn 2 TRX tren cung mot sector, neu khong dung ket hp

th ta phai g cau ra va ket noi trc tiep vi duplexer makhong thong qua bo WBC. Khi qua bo WBC tn hieu se b


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8

CAU HNH TRAM BTS

1. Khi ng hn mm v kt ni vot BTS

Start -> Programs -> BTS-T rminalr l as B9 -> BTS-T rminal r l as B9

Us r/Gro nam : UPGRA

Password: : SUM Click Logon.


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Ti ca s chnh n nt kt ni. Hay n F2. hoc ta c thkt ni bng cch chn:Menu File- Connect/Disconnect


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2.Ti phn mm cho BTS:

Chn file :+ Master file dng: bm*saq**.MSF+ CPF file dng: 00o*aq**.DDL+ CODA file : mc nh.

3. Chn tn s sng mang cho cc TRE


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4. t a ch QmVo Commissioning -> Edit Qm Addr ss, t hinca s sa :


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5. n nh sector:


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Trong trng hp cc card TRE ti trm s dng card TWIN th sxut hin thm bng TWIN TRE Module Configuration, khi Clickchn Dual TRE. Nu trm va s dng card TRE n v card

TWIN thi chn Dual TRE i vi card TWIN v Single TRE i vicard TRE n


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6. Khi to cc sector:Mc ch: khi ng tt c cc khi trong

BTS.Trong qu trnh khi to, xut hin bn tin

ca s sau:


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7. Kim tra cp v tuyn RF:Mc ch: kim tra cp RF c kt ni ng gia TRE viANC, m bo tn s pht ng cho mi sector.

Thc hin:


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8. Thit lp v kim tra cc cnh bo

ngoi:Mc ch: kim tra v n nh cc cnh bo ngoi tuchn.* n nh li cc cnh bo ngoi:+ Thc hin:


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- Ca s Remote Inventory (Application Part).


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Kim tra trng thi ca qut:Thc hin:

Ca s Fan test xut hin.


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10. Thit l thi gian tt cho mtvi khi ca BTSThc hin: ging mc 7.Chn: UT_AC C_BCB ***Click: U load.Click: A lication PartNh thi gian cn thit l vo tr-ng : Pow r own Tim r.


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11. o t s sng ng VSWR:Mc ch: o kim tra t s sng ng VSWR trn -ng truynn ngten.

Thc hin:

Ca s VSWR Measurement/ Threshole Definition xut hin.


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12. o cng sut:Mc ch: o cng sut pht ca tng TRE trong BTS.Thc hin: Kt ni my o cng s t (my Bird) vo tng ANC.ChnCa s Output power Test xut hin.TRE Number: chn TRE t-ng ng ang -c ni vi my o.Click On o trn tt c cc khe thi gian (TS).Click Start.

Xem gi tr cng sut o -c trn my o, ghi li gi tr o.Click Stop kt thc o vi TRE o.


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13. Kim tra u loop BTSMc ch: kim tra lung Abis v kim tra dy u ra DDF tt

hay khng.Thc hin:Ca s Station Unit Test xut hin

+ Chn internal Loop v click nt Start kim tra loop bn trong.Qu trnh x l v kt qu th hin trong trn ca s sau:


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+ Chn external Loop v click nt Start kim tra u loop phm DDF. Qu trnh xy ra nh- sau:

Ch cho n khi xut hin thng bo sau


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14. Kt thc Commissioning:Mc ch: hon thnh qu trnh commissioning, l-u li kt qu kim

tra trong qu trnh commissioning, tt cc khi trong BTS.Thc hin:Ca s End Commissioning xut hin


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Ca s BTS terminal for Window xut hin.

Sau khi BTS t ng reset, mn hnh xut hin bng thng bov qu trnh commissioning:


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L-u li file ny bng cch : Menu File- Save hay Save As


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TCH HP TRM BTS VO H THNG

1. kim tra cc tham s tr yn dn:Mc ch: thit lp a ch Qmux, n nh khe thi gian cho Qmux, OMU,knh l-u l-ng TCH nhm to s t-ng thch khi vn hnh trm BTS t h thngqun l OMC-R.Thc hin:

Ca s SUM board configuration xut hin.Trn tr-ng Abis Mapping: n nh khe thi gian v nibble cho Qmux (TS1,nibble0), knh bo hiu OMU (TS2), knh l-u l-ng TCH. Chn tc bo hiucho knh OMU.Click Transmit xc nhn qu trnh n nh.Click Close ng ca s.


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Ci t a ch Qm :Thc hin:

Ca s SUM initial Settings sut hin.Qmux address (decimal): nhp a ch Qmux theo thit k.Environment: chn cu hnh BTS.Click Transmit xc nhn thng tin nhp.Click Close ng ca s.


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2. Cc b-c tin trnh tch h trm

BTSSau khi thc hin tt c cc tin trnh Commissioning ta tin hnhtch hp ni n BSC. Bao gm cc b-c sau:a. Kim tra v u ni lung PCM 2M t DDF ca BTS n DDF catruyn dn (quang/viba)

L-u : dng LED kim tra TX v RX ca mi lung trn tngphin, u TX (trn DDF ca BTS) vo RX (trn DDF ca truyn dn) vRX (trn DDF ca BTS) vo TX (trn DDF ca truyn dn).b. Kim tra OML LED trn card SUMA: phi ON (sng vng, khng chp)c. Gi in v OMC-R ti d liu cho trmd. Sau khi ti xong, trm s pht sng. Tin hnh gi th cuc gi ti trm chc chn cc TRE u hot ng ttn RSL, OP: sng vngn BCCH: sng vng (nu TRE mang tn s BCCH)n TX: s sng vng khi thc hin cuc gi trn TRE

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CAU TRUC BTS