Thit b node B RBS 3000 cua Ericsson 1. Tng quan v RBS 3000 ca Ericsson 1.1. RBS 3000 trong mng UMTS

Cu trc UTRAN

Radio Base Station (RBS) hay cn gi l Node B Radio Network Controller (RNC) B iu khin mng v tuyn Radio Access Network Operation Support (RANOS) H tr hot ng mng truy cp v tuyn O&M Infrastructure (OMINF) C s h tng khai thc v bo dng Radio Access Network Aggregator (RANAG) B gp mng truy cp v tuyn Network Subsystem Gateway (RNSGW) Cng vo h thng con mng v tuyn

Cc giao din Mub v Iub c th dng chung mi trng truyn dn. RBS EM (Element Manager) khng c xem la mt nt ring bit trong UTRAN m c tch hp lun vo RBS. Tng t RBS EM, RNC EM cng c tch hp trong RNC 1.2. Chc nng chnh ca RBS 3000 Chc nng ca RBS c chia thnh cc nhm chc nng sau: Platform Functions Chc nng nn Radio Transport Functions Chc nng truyn ti v tuyn Synchronization Functions Chc nng ng b Bearer Functions Chc nng b Traffic Control Functions Chc nng iu khin lu lng Configuration Management Functions Chc nng qun l cu hnh Fault Management Functions Chc nng qun l li Performance Management Functions Chc nng qun l qu trnh thc hin User Interface Functions Chc nng giao din ngi s dng Infrastructure Functions Chc nng c s h tng

Cu trc chc nng ca mt RBS 1.3. Kin trc v cu trc node B 1.3.1. Kin trc node B Thng thng chc nng ca RBS c chia lm hai nhm chnh bao gm nhm chc nng ngi s dng (User plane functions) v nhm chc nng iu khin (Control plane functions)

Nhm chc nng ngi s dng:o o o o

Transport Truyn ti Baseband Bng tn c s Radio V tuyn Antenna Near Parts -

Nhm chc nng iu khin o Traffic control iu khin lu lng o O&M Khai thc v bo dng

Tng quan kin trc RBS 1.3.2. Cu trc node B Cu trc node B bao gm 3 lp quan trng:

Platform view Lp nn Traffic control view Lp iu khin lu lng Lp iu khin lu lng bao gm 4 tng: - Traffic Service Layer Lp dch v lu lng: gii quyt cc th tc NBAP (Node B Application Part) hay cn gi l phn ng dng Node B. N nhn yu cu dch v t RNC v ti u ha lp ngun logic thi hnh cc chc nng - Logical Resource Layer - Lp ngun logic: cung cp cc ngun logic nh cc knh (channels), sng mang ca (cell-carrier), ng dn ATM (ATM links) n lp dch v lu lng - Equipment Layer Lp thit b: a ra bng mch c bit m ti cc chc nng quan trng c phn b - Hardware Layer Lp phn cng: che giu cc thit k chi tit v cc bng mch nh DSPs, FPGAs, ASICs v cc mch in phn cng khc

Management view Lp qun l

1.4. Cc giao din ngoi ca RBS 3000

1.4.1. Iub

Iub la giao din gia RNC v RBS dng cho vic bo hiu lu lng. N bao gm bo hiu iu khin NBAP (NBAP control signaling) v bo hiu d liu ngi s dng (user data signaling) thng qua cc giao thc khung (Frame Protocols).

Iub c chia thnh cc tng giao thc sau:

Tng vt l (L1) Tng ATM v thch ng ATM (ATM adaptation) (L2) Tng mng (L3)

1.4.2. Uu

Uu la giao din v tuyn gia RBS (Radio Base Station) va UE (User Equipment). Giao din ny c chia thnh 3 tng giao thc:

Physical layer (L1) Lp vt l Data link layer (L2) Lp lin kt d liu Network layer (L3) Lp mng

Thng thng tng 1 ca giao din Uu kt thc ti RBS, cc tng khc cao hn th kt thc ti RNC hoc mng li (Core Network) 1.4.3. Mub Mub la giao din qun l c cung cp bi RBS. N c dng trong vic qun l phn t v qun l mng. Khc vi giao din Iub, Mub khng c chun ha. S tng tc gia tng i vi h thng c thc hin bi Thin Client (TC). TC y nh 1 my tnh c ci t sn cc phn mm nh trnh duyt web (web browser) hay mt JVM (Java Virtual Machine). Mub da trn c s IP, do vy RBS cng s c mt a ch IP. Vic qun l t xa s s dng IP thng qua mng ATM (Asynchronous Transfer Mode) v vic qun l ti trm s s dng mng Ethernet. Cc tng giao tip cp thp nh FTP (File Transfer Protocol) server, HTTP (Hyper Text Transfer Protocol) server, SNMP (Simple Network Management Protocol) agent, ORB v Telnet server s c cung cp bi tm nn Cello (Cello Platform)

Giao din qun l 1.4.4. GUI GUI (Graphical User Interface) c cung cp n tng i nhm kch hot s khai thc v bo dng ca RBS theo cch ca ngi s dng. Giao din c cung cp bi Element Manger. Cc ng dng GUI chy trn nn web (HTML, Java) v chy trong mt chun trnh duyt web 1.4.5. VMI VMI (Visual and Mechenical Interface) l giao din m khch gh thm trm gp phi. N bao gm:

Visual indicators B xc nh nhn thy c, v d nh n LEDs Cc cng tc v nt bm c th vn hnh bng tay, v d nh nt reset bng mch Incoming external power External alarms/outputs B ni (connectors), cp (cables) v cc inh c (screws)

2. Cc node B cua Ericsson: RBS 3206 & RBS 3418 2.1. Gii thiu v RBS 3000 ca Ericsson Dng RBS 3000 ca Ericsson l nhng RBS vi chun WCDMA (Wideband Code Division Multiple Access) phm vi rng c th hot ng v tuyn vi nhiu ng dng trong cc mi

trng thnh th, ngoi , v nng thn. RBS 3000 gip tit kim gi thnh lp t bng cch gim s lng trm. Thit k gip cho vic lp t tr nn linh ng v vic bo dng c n gin ha Tt c cc trm RBS 3000 c th c tch hp chung vi cc mng ang tn ti, v d nh cc trm RBS 2000 ca mng GSM. Ngoi ra RBS 3000 cn h tr cho HSPA (High Speed Packet Access) cho cc mng di ng bng thng rng: tng tc truyn ti d liu, gim tr v tng dung lng mng. Do vy RBS 3000 c xem l gii php tng lai cho cng ngh thng tin di ng tc cao HSPA

2.2. RBS 32062.2.1. Gii thiu T indoor marco RBS 3206 c thit k p ng cc vn nh tc d liu cao, s lng thu bao ln, khu vc ph sng rng. RBS 3206 c xem l gii php l tng cho truyn hnh di ng v di ng bng thng rng. T RBS 3206 c th c dng cho c cu hnh n band v dual band, h tr cc di tn s ph bin: 2100, 1900, 1700/2100, 900 v 850 MHz. RBS 3206 c th c ci t cu hnh 6x2 (6 sector & 2 cell carrier) hoc 3x4 (3 sector & 4 cell carrier) v 60W cho mi cell carrier i vi mt t n T RBS 3206 c chung dng vi cc t indoor marco GSM nh RBS 2206, RBS 2202 va 2 t chng RBS 2216. RBS 3206 c linh ng cao v d dng nng cp. Bn cnh RBS 3206 cn h tr HSPA 2.2.2. Cu trc phn cng ca trm RBS 3206 RBS 3206M Trm RBS 3206M l phin bn c trang b mt phn ca trm RBS 3206F v h tr ch 3 khi v tuyn (RU). Tram 3206M c th c nng cp ln thnh trm RBS 3206F

Cu trc phn cng trm RBS 3206M RBS 3206E v RBS 3206F Trm RBS 3206E h tr 6 khi v tuyn (RU) v c dng cho cc bng tn 850/1900/17-2100 MHz. Trm RBS 3206F cng h tr 6 khi v tuyn (RU) nhng li hot ng bng tn 2100/900 MHz. Trm RBS 3206E cao hn trm RBS 3206F 10 cm do phin bn E s c nhiu ch trng hn phin bn F v tin li cho vic lp thm cc thit b khc, chng hn nh thm c 3 khi v tuyn (RU)

Cu trc phn cng trm RBS 3206E v 3206F 2.2.3. T trm RBS 3206 2.2.3.1. Radio Unit (RU) Khi v tuyn Khi v tuyn bao gm cc chc nng cho vic tch tn hiu (signal clipping), chuyn i tn hiu s qua tn hiu analogue (digital-to-analogue), iu ch (modulation), khuch i tn s v tuyn cho ng pht cng nh chuyn i tn hiu analogue qua tn hiu s v lc cho ng dn thu S khe RU sn c cho trm RBS 3206 ph thuc vo loi t RBS 3206M: 3 khe RBS 3206F: 6 khe RBS 3206E: 9 khe

2.2.3.2. Filter Unit (FU) B lc Mt b lc (FU) bao gm mt b khuch i tp m thp LNA (Low Noise Amplifier), v m nhn vic phn chia sng mang tn s v tuyn. LNA bao gm 1 nhnh ng ten pht ng xung v 2 nhnh ng ten thu ng ln S lng ca FU ty thuc vo loi t trm RBS 3206M: 1-3 RBS 3206F/E: 1-6

2.2.3.3. Digital Subrack v Cassette Digital subrack ca RBS 3206F v 3206E bao gm 2 ngn cha baseband ring bit. Trong khi d digital cassette ca RBS 3206M ch c duy nht 1 ngn cha baseband. Mi ngn cha baseband h tr ln ti 6 sector-carriers. Bn di l cc loi bng mch bao gm: Control Base Unit (CBU) Khi iu khin c s CBU c xem la n v trung tm iu khin ca trm RBS. N gii quyt cc chc nng iu khin v cung cp cc yu cu kt ni cho hu ht cc mng truyn ti ph bin. Ngoi ra, CBU cn cha b phn phi ngun v b lc S lng CBU ty thuc vo loi t trm

RBS 3206M: 1 RBS 3206F/E: 1-2

Transmitter Boards (TXB) Mch pht TXB c h tr hon ton HSPDA. TXB bao gm phn pht di c s, m nhim vic phn chia (cell splitting), ghp knh (channel combining), m ha (encoding), iu ch (modulation) v m rng cng nh gii quyt cc knh truyn dn. Ty thuc vo phin bn ca trm RBS 3206 m s lng TXB khc nhau RBS 3206M: 1-2 RBS 3206F/E: 1-4

Random Access and Receiver Boards (RAXB) Mch thu v truy cp ngu nhin RAXB bao gm phn thu di c s v RAXB gii quyt vic ni trong chuyn giao mm, gii m, tm kim cng nh truy cp ngu nhin cc knh truyn dn. Tt c bng

mch hon ton tng thch vi EUL (Enhanced Up-Link), vi cc phin bn h tr 10ms hoc 2/10ms khong thi gian truyn ti TTI (Transmit Time Interval) S lng RAXB ph thuc vo phin bn ca RBS 3206 RBS 3206M: 1-6 RBS 3206F/E: 1-12

Radio Unit Interface (RUIF) Giao din khi v tuyn RUIF cha cc kt ni im-ti-im thng qua cc cp ti cc khi v tuyn (RUs). RUIF mang theo tn hiu cho c ng pht v ng thu cng nh cc tn hiu iu khin s (digital control signals) v cc tn hiu thi gian (timing signals) S lng RUIF: RBS 3206M: 1 RBS 3206F/E: 1-2

Exchange Terminal Boards (ETBs) Bng chuyn mch u cui ETBs cung cp thm cc cng kt ni mng truyn ti. Vic s dng ETB co th ty v CBU cung cp sn 4 cng E1/T1. ETB c th dng trang b thm cho t trm cc cng kt ni khc nh: E1/J1/T1, E3/J3/T3, STM (Synchronous Transfer Mode) -1 v Ethernet S lng ETB: - RBS 3206M: 0-4- RBS 3206F/E: 0-8

2.2.3.4. Power Supply Unit (PSU) n v cp ngun PSU chuyn i hiu in th AC hoc DC u vo thnh - 48V DC. PSU giao tip vi CBU thng qua EC bus v l mt n v c yu cu khi RBS c trang b vi mt DCCU (DC Connection Unit) hoc ACCU (AC Connection Unit) S lng PSU: 0-4 2.2.3.5. Power Connection Units n v kt ni ngun Trm RBS 3206 c th c trang b cc n v kt ni ngun khc nhau ty thuc vo vic chn ngun cung cp

DC Connection Unit (DCCU) n v u ni ngun 1 chiu DCCU c s dng u ni 24V DC v 48V DC v c dng phn phi n ti DC PSUs S lng DCCU: RBS 3206M: 1 (duy nht - 48V DC) RBS 3206F/E: 0-1

AC Connection Unit (ACCU) n v u ni ngun xoay chiu ACCU c s dng u ni ngun AC u vo v phn phi n ti AC PSUs S lng ACCU: RBS 3206M: 0 RBS 3206F/E: 0-1

DC filter (DCF) B lc DC DCF c s dng kt ni ngun vo 48V DC. DCF l bt buc khi ngun d phng bn ngoi c s dng S lng: -

RBS 3206M: 1 RBS 3206F/E: 0-1

2.2.3.6. Power Distribution Units n v phn phi ngun PDU c s dng cho vic phn phi ngun DC trong S lng PDU: 1 2.2.3.7. Optional Units Cc khi ty chn Cc thit b c m t bn di c t bn ngoi trm RBS v c th t cch nhau ring bit. Cc thit b ny c thit k nhm nng cao hiu sut trm nhng cng khng cn thit cho cc chc nng c bn ca trm RBS

Power and Battery Backup Ngun v pin d phng Gii php pin v ngun d phng nn dng cho trm RBS 3206 khi c lp t chung vi trm RBS GSM l t ngun PBC 6500. Mt t ngun c th phc v ti 2 trm RBS

GSM v mt tram RBS 3206, n c th cung cp dung lng pin ln ti 500Ah (-48V DC). Lu rng trm RBS 3206E/F c th c lp t vi ngun +24V DC hoc -48V DC v ngun xoay chiu AC, do vy mt h thng pin v ngun d phng thng c ti s dng khi trin khai cc trm RBS 3206F/E

Antenna System Controller (ASC) B iu khin h thng ng ten ASC l mt cp khuch i TMA song cng dng cho di tn s 2100 MHz. ASC c s dng cho ng dn thu nhm gim thiu nhiu b thu. N cng c th dng chung feeder nhn v pht tn hiu. Mt sector ch cn 1 ASC. ASC cng c phn giao din h tr cho RET (Remote Electrical Tilt)

Tower Mounted Amplifier (TMA) B khuch i TMA C nhiu loi TMA vi chun li (12dB). ddTMAs di n dng cho cc di tn s 900, 1900, 17/2100 va 850 MHz. TMAs di kp dng cho di tn 850/1900 MHz. Thng thng 1 sector th cn 1 TMA di n hoc 2 TMA di kp

Wideband Tower Mounted Amplifier (WTMA) B khuch i TMA di rng WTMA l mt b ddTMA (dual duplex TMA) vi li cao dng cho di tn 2100 MHz

Remote Electrical Tilt (RET) Chc nng RET c dng ti u ha hiu sut mng v tuyn bng cch kch hot iu khin t xa gc nghing ca bp bc x ng ten. Tng i c th iu khin gc nghing bng OSS-RC (Operation and Support System Radio and Core)

2.2.4. ng dng ca trm RBS 3206 2.2.4.1. Gii php kt hp GSM

GSM Co-sitting Solution RBS 3206 c thit k c cng din tch lp t vi cc trm indoor marco GSM ca Ericsson nh RBS 2206, RBS 2202, RBS 200 v RBS 2216. Do RBS 3206 gip tit kim chi ph u t v lp t bng cch lp t chung vi cc trm GSM sn c 2.2.4.2. Metropolitan Indoor Site

Metropolitan Indoor Site i vi khu vc thnh th khng c kh nng kt hp vi cc trm GSM th RBS 3206 cng c xem l mt gii php. Nh vo hiu sut v tuyn cc cao m RBS 3206 gip lm gim ti thiu s lng trm cn thit. Thm vo vic trin khai li d dng v din tch lp t nh ca trm RBS 3206 2.2.4.3. Rural Coverage Site

Rural Coverage Site C 2 cch ph bin ci thin vic kinh doanh dch v WCDMA khu vc nng thn, ni mt dn s thp: S dng trm c ph sng mt khu vc ln c th gip gia tng s lng thu bao ca mi trm gc S dng trm c ph sng khu vc nh (ph mt lng hoc mt thung lng) gip gim gi thnh ca trm

RBS 3206 c th h tr mt ph cc rng, chng hn 6 sector mi v 60W mi sector. Chnh v vy trm RBS 3206 c xem l gii php th nht c cp trn trong vic trin khai WCDMA khu vc nng thn 2.2.4.4. In-building Coverage Solution

In-building Coverage Solution Trm RBS 3206 c th c dng ph sng trong cc ta nh. Cng vi DAS (Distributed Antenna System) c ci sn bn trong ta nh, trm RBS 3206 c th h tr mt s lng ln thu bao vi lu lng d liu tc cao

2.2.5. Cu hnh trm RBS 3206 Frequency Bands Gii tn s Trm RBS 3206 c th dng cho cu hnh di kp cng nh di n, v h tr cc di tn s sau:

Radio Configurations Cu hnh v tuyn Bng bn di m t s lng khe RU (Radio Unit) v cu hnh ti a cho cc phin bn khc nhau ca trm RBS

o Single Band Configurations Cu hnh di n

o Dual Band Configurations Cu hnh di kp

o MIMO 22 Configuration Cu hnh MIMO 2x2 MIMO 2x2 s dng 2 ng ten pht ti trm gc v 2 ng ten thu ti im n nhm nng cao tc truyn d liu trn ng xung.

Baseband Capacity Lu lng baseband Tt c cc phin bn ca trm 3206 u h tr hon ton HSPA.o

Downlink Capacity Lu lng ng xung Lu lng baseband ng xung cc i l 1536 CE v c th c phn theo bt k s kt ni sau (ti a 2 bng mch cho RBS 3206M v ti a 4 bng mch cho RBS 3206E/F): HS-TX15 HS-TX45 HS-TX60

o

Uplink Capacity Lu lng ng ln Lu lng baseband ng ln cc i l 1536 CE v c th c phn theo bt k s kt ni sau (ti a 6 bng mch cho RBS 3206M v ti a 12 bng mch cho RBS 3206E/F):

32 CE RAXB (10ms TTI) 64 CE RAXB (10ms TTI) 128 CE RAXB (10ms TTI) 128 CE RAXB (RAX 2e, 10ms v 2ms TTI)

Transmission Configurations Cu hnh truyn dn CBU la thit b chun c h tr 4 port truyn dn mng E1/T1/J1. Trm RBS 3206E v trm RBS 3206F c th c trang b thm 8 ETB (Exchange Terminal Board) cho cc port truyn dn ph. Trm RBS 3206M c trang b thm 4 ETB cng cho cc port truyn dn ph C nhiu loi ETB khc nhau c chn ty thuc vo cc yu cu ca port truyn dn. Bng bn di m t cc loi ETB v kiu port truyn dn m n h tr

2.2.6. Technical Specifications Cc c tnh k thut

Radio Specifications c tnh v tuyn

Power Options Ty chn ngun

Cabinet Dimensions Kch thc t trm

Weight Cn nng

Color Mu sc

2.3. RBS 34182.3.1. Gii thiu T Main-Remote RBS 3418 bao gm 1 b MU (Main Unit) indoor v 6 b RRU (Remote Radio Unit) outdoor. RRU kt ni vi MU thng qua cp quang gip tng cng s linh ng khi v bn trm. S gn nh cng gip gim gi thnh vn chuyn v lp t T Main-Remote RBS 3418 gip lm gim tht thot feeder v lm cho h thng t cng hiu sut cao khi ngun thp nh h thng RRU t gn ng ten. V phn cng b tch bit thnh tng khi nh vi trng lng nh v d mang ti trm nn t Main-Remote RBS 3418 rt thch hp cho cc trm t ni c khng gian b gii hn. T RBS 3418 cn c xem l l tng cho vic ph sng cc khu vc nh ng cao tc nh b RRU c mc linh ng cao c th tri rng trn mt din tch ln

T RBS 3418 c th c cu hnh ln ti 6 sector vi 1 carrier/sector hoc 3 sector vi 2 carrier/sector. N cn co dng cho c cu hnh di n ln di kp v h tr hu ht cc di tn ph bin nh: 2100, 1900, 1700/2100, 1700/1800, 900 v 850 MHz. T RBS 3418 cn h tr nhiu mc cng sut pht, ln ti 60W mi cell carrier MU c lp t trong 1 gi 19-inch hoc c gn trn tng trong mt t nh hoc mt phng thit b nh. MU cng c th lp t c trong 1 t SSC-01 outdoor. B RRU outdoor th c lp t trn mt cy cc, tng hoc thp. T RBS 3418 c th d dang tch hp vi h thng mng GSM sn c 2.3.2. Cu trc phn cng ca trm RBS 3418 T Main-Remote RBS 3418 c cng kin trc nh cc t khc trong h RBS 3000. T RBS 3418 c chia lm 2 phn: MU v RRU. RRU c kt ni vi MU thng qua cp quang

2.3.3. T RBS 3418 2.3.3.1. Main Unit (MU) Khi chnh MU c thit k cho mi trng indoor v thng c gn trn mt gi 19-inch hoc mt bc tng nh. MU cng c th c gn trong t GSM RBS 2106 v kt hp vi nhau to thnh t RBS 3018. MU bao gm cc phn cng sau:

Fan Unit (FU) Qut Qut gip lm mt ngn t. Tc ca qut c iu khin trong v cnh bo c pht ra nu tc ca qut xung di mc cho php S lng: 1

Power Distribution Unit (PDU) hoc Power Supply Unit (PSU) n v ngun MU c trang b PDU, DC-PSU hoc AC-PSU PDU c s dng phn phi ngun vo 48V DC n CBU (Control Base Unit) v FU (Fan Unit) DC-PSU chuyn i ngun vo 24V DC thnh 48V DC v phn phi n CBU, FU AC-PSU chuyn i ngun vo AC thnh 48V DC v phn phi ti CBU, FU

Control Base Unit (CBU) Khi iu khin c s CBU c xem la trung khu ca t RBS. N x l cc chc nng iu khin chnh trong tu RBS v iu khin cc board thng qua cc board processor. CBU cn cha mt b chuyn mch lu lng cao v giao tip vi cc khi khc trong MU cng nh giao tip vi b lc ngun

S lng: 1 Transmitter Boards (TXBs) Mch pht TXB c h tr hon ton HSPDA. TXB bao gm phn pht baseband, m nhim vic phn chia (cell splitting), ghp knh (channel combining), m ha (encoding), iu ch (modulation) v m rng cng nh gii quyt cc knh truyn dn. S lng: 1-2 Random Access and Receiver Boards (RAXB) Mch thu v truy cp ngu nhin RAXB bao gm phn thu baseband v RAXB gii quyt vic ni trong chuyn giao mm, gii m, tm kim cng nh truy cp ngu nhin cc knh truyn dn. Cc RAXB hon ton tng thch vi EUL (Enhanced Up-Link), vi cc phin bn h tr 10ms hoc 2/10ms khong thi gian truyn ti TTI (Transmit Time Interval) Nu t RBS 3418 c trang b 2 hoc nhiu hn 2 RAXB th cc RAXB s chia s chung ti nhm t li ch cao. Nu 1 RAXB h, th ti s di chuyn n RAXB khc. iu ny m bo cc RBS tip tc gii quyt lu lng nhng bi gim i dung lng S lng: 1-4 Optical Radio Unit Interface (OBIF) Giao tip v tuyn quang OBIF cung cp cc giao tip quang ni m cp quang t RRU c kt ni n MU. C 2 loi OBIF: OBIF2 v OBIF4. OBIF4 c chn nu cnh bo ngoi c yu cu S lng: 1 Exchange Terminal Boards (ETBs) Bng chuyn mch u cui ETBs cung cp thm cc cng kt ni mng truyn ti. Vic s dng ETB co th ty v CBU cung cp sn 4 cng E1/T1. ETB c th dng trang b thm cho t trm cc cng kt ni khc nh: E1/J1/T1, E3/J3/T3, STM (Synchronous Transfer Mode) -1 v Ethernet S lng: 0-1 2.3.3.2. Remote Radio Unit (RRU) B iu khin v tuyn t xa RRU c thit k lp t gn ng ten, v c th c gn c trn tng hoc trn cc. C ti 6 RRU c kt ni n cng 1 MU

Cc loi RRU khc nhau dng cho cc nhu cu khc nhau, vi ngun ra ln ti 60W, cho ph rng v i hi dung lng cao. Cc RRU khc nhau c th c dung chung 1 cu hnh. Cu hnh di kp cng c h tr bng cch kt ni cc RRU cho cc di tn s khc nhau n cng chung MU RRU cha phn ln hardware x l v tuyn. Cc phn chnh ca RRU bao gm: Filter B lc TRX B thu pht Power Amplifier B khuch i ngun Optical Interface Giao tip quang

Tt c cc kt ni c t y ca RRU. RRU phi c lp t thng do yu t nhit TMA (Tower Mounted Amplifier) hoc ASCs (Antenna System Controllers) khng cn thit khi RRU c gn gn ng ten. Tuy nhin mt vi loi RRU khng h tr ASC, TMA, RET (Remote Electrical Tilt) v RIU (RET Interface Unit). S tng thch ca cc loi RRU khc nhau c gii thiu trong bng bn di

2.3.3.3. Optical Interface Link ng ni giao tip quang Cc RRU c kt ni n MU thng qua cc cp quang. di gia MU v 1 RRU c th ln ti 15km Cc khi c th c lin kt vi nhau theo mt vi cch khc nhau ty thuc vo thit k trm. T RBS 3418 h tr:

u ni hnh sao (start connection) n cc RRU, ti mi RRU c u ni n MU u ni tng (cascade connection) m ti ch mt si quang c u ni gia MU v mt trong cc RRU. Cc RRU khc c kt ni vi nhau. Gii php ny lm gim di ca si quang cn dng v c th c s dng trong nhiu ng dng khi cc RRU c t xa MU. i vi u ni tng th RRUW-01 c dng

2.3.3.4. Optional Units Cc n v ty chn Power and Battery Backup System (PBC-04) H thng pin v ngun d phng PBC-04 l b cung cp ngun indoor, c th cp ngun d phng cho 1 MU indoor v 3 RRU outdoor. PBC-04 c th c gn trn trn hoc trn tng Dung lng ti a ca PBC-04 la 200Ah Site Support Cabinet (SSC-01) T h tr trm SSC-01 l mt gii php indoor gip cung cp mt t cha c 2 MU cng nh cc thit b truyn dn, pin, b chnh lu. Dung lng pin ti a cho SSC-01 la 200Ah Power and Battery Backup System (PBC-02) H thng pin v ngun d phng PBC-02 l ngun d phng outdoor gip cp ngun cho cc RRU. PBC-02 c th c gn trn cc hoc trn tng v c dung lng pin ln ti 65Ah. Thm vo , PBC-02 c th d dng c m rng vi cc pin ph gip tng c thi gian d phng 2.3.4. ng dng ca trm RBS 3206 2.3.4.1. Metropolitan Indoor Site

RBS 3418 hon ton thch hp cho cc a im ni thnh, t nhu cu dung lng thp n dung lng cao v cng sut tiu th thp. Cc khi lp t nh gn c th vn chuyn d dng bng thang my hoc thang b Cc RRU c gn gn cc ng ten va MU c lp t trong mt gi 19-inch hoc b gn tng trong phng thit b

2.3.4.2. Suburban Shelter Site

T RBS 3418 c xem l mt gii php hon ho v vic ph sng cng nh dung lng trong khu vc ngoi . T Main-Remote RBS 3418 cung cp mt ph rng gip gim gi thnh ph sng Cc trm v tuyn trong khu vc iu khin vi vic gii hn v h tng ngun c th c hng li t t Main-Remote RBS 3418 v n tiu th t in nng v hiu sut li cao MU c th c lp t trong mt gi rng 19-inch hoc c gn trong mt khung nh bn di thp, mi RRU c lp t gn cc ng ten trn nh thp. T RBS 3418 cn c th lp t c chung vi t GSM RBS 2106 m khng tn thm din tch lp t 2.3.4.3. Highway Coverage Site

Hiu sut ph sng cao, dung lng ln, in nng tiu th thp gip cho t RBS 3418 tr thnh mt s la chn l tng cho vic lp t trm ph sng o khu vc ng cao tc. Cc RRU c th c tri dc cc ng cao tc m ti chng c th c gn d dng trn cc tr dc ng. MU c gn trong t outdoor SSC-01 t trn mt t 2.3.4.4. In-building Coverage Solution

In-building Coverage Solution Vic RRU c s dng nh mt b iu vn v c kt ni n DAS khin cho t RBS cng tr nn thch hp cho vic ph sng trong nh nh cc trung tm mua sm, nh ga xe la v cc sn th thao 2.3.5. Cu hnh trm RBS 3418 Radio Configurations Cu hnh v tuyn T RBS 3418 h tr ln n 6 cell carrier v 1 loi RRU ty . T c cu hnh cho cc di tn nh 2100, 1900, 1700/2100, 1700/1800, 900 v 850 Mhz Cc cu hnh ph bin c trnh by trong bng cu hnh bn di gm cu hnh di n v cu hnh di kp Single band Configuration Cu hnh di n 3x1: 3 sector v 1 carrier mi sector

Double band Configuration Cu hnh di kp

Baseband Capacity Lu lng baseband Tt c cc phin bn ca t RBS 3418 u h tr hon ton HSPA. o Downlink Capacity Lu lng ng xung Lu lng baseband ng xung cc i l 768 CE v c xp theo th t kt hp sau (ti a 2 boards): HS-TX15 HS-TX45 HS-TX60

o Uplink Capacity Lu lng ng ln Lu lng baseband ng ln cc i l 512 CE v c xp theo th t kt hp sau: -

32 CE RAXB (10ms TTI) 64 CE RAXB (10ms TTI) 128 CE RAXB (10ms TTI) 128 CE RAXB (2ms v 10ms TTI)

Transmission Configurations Cu hnh truyn dn CBU la thit b chun c h tr 4 port truyn dn mng E1/T1/J1. MU c th c trang b thm cc port ph bi ETB (Exchange Terminal Board) C nhiu loi ETB khc nhau c chn ty thuc vo cc yu cu ca port truyn dn. Bng bn di m t cc loi ETB v kiu port truyn dn c h tr v s lng ti a ca tng loi port ma t RBS 3418 c th trang b thm:

2.3.6. Technical Specifications Cc c tnh k thut Radio Specifications c tnh v tuyn

Power Options Ty chn ngun

Cabinet Dimensions Kch thc t trm

Weight Cn nng