NSN UMTS Equipment Overview
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Transcript of NSN UMTS Equipment Overview
1 © 2006 Nokia T-Mobile Oct 2006 TRM 10-17-2006
Company Confidential
UMTS Solution Overview
2 © 2006 Nokia T-Mobile Oct 2006 TRM 10-17-2006
Company Confidential
RNC in WCDMA Radio Access Network
Internet
PSTNSABC
Nokia WCDMA BTS
GGSN SGSNMGWMSC/HLR
RNC1 RNC2 RNC #n
RNC RNC RNC
R99 / HSDPA / HSUPA
3 © 2006 Nokia T-Mobile Oct 2006 TRM 10-17-2006
Company Confidential
HSUPAFlexi Node B
4 © 2006 Nokia T-Mobile Oct 2006 TRM 10-17-2006
Company Confidential
Nokia Flexi WCDMA Base StationSmall in Size, Big in Functionality
• Macro WCDMA/HSDA/I-HSPA BTS in micro size
• One person can carry and install• Up to 12 cells/carriers, 6 sectors• 100W Dual-PA Radio Module with 2 sectors• Output power nominal 45W, guaranteed 40W per carrier• Remote HSPA upgrade • Remote capacity allocation with SW license
• Optimized Antenna Line• Power feed and control for Integrated Mast Head Amplifier and Antenna Tilt
• Outdoor, -33 … +55 °C, (-27.4 … 131°F), IP55 • Weight < 21 kg(46.3 lb) per module• Volume 33 liters
5 © 2006 Nokia T-Mobile Oct 2006 TRM 10-17-2006
Company Confidential
Mechanics
Casing (to enable core pull out)Core(can be pulled out for replacement)
Fan at back (can be replaced at site)
Optional Front Cable cover
Casing (to enable core pull out)Core(can be pulled out for replacement)
Fan at back (can be replaced at site)
Optional Front Cable cover
6 © 2006 Nokia T-Mobile Oct 2006 TRM 10-17-2006
Company Confidential
Nokia Flexi WCDMA BTS RF- Module• One (FRIB) or two (FRIA) sector support with RX Diversity • 100W PA output power with Dual 50W Power Amplifiers
•Over 25 % efficiency• 4 TX carriers, 8 RX carriers• 2 Antenna Filters with integrated
• MHA power feeding• 3GPP Antenna Tilt support• VSWR measurement• lightning protection
• Redundant integrated fans •Optional integrated AC sub-module (with FRIB only)
7 © 2006 Nokia T-Mobile Oct 2006 TRM 10-17-2006
Company Confidential
RF Module interfaces4 x 7/16 antenna
feeder connectors
Duplex LCconnector for optical
system interface
Multi-beamconnector for
power interfaceNote: FRIA in the picture.
8 © 2006 Nokia T-Mobile Oct 2006 TRM 10-17-2006
Company Confidential
Nokia Flexi WCDMA System Module
• integrated BB and BTS Control• integrated Transport alternatives
• ATM/IP over PDH/SDH/Flexbus/Ethernet
• DC power input and distribution to RF Modules• optical OBSAI RP3-01 interface to RF Modules• BTS site external alarms and controls• 100&1000 BaseT Ethernet connectors• ext Synchronization out and input• redundant integrated fans
9 © 2006 Nokia T-Mobile Oct 2006 TRM 10-17-2006
Company Confidential
System Module interfaces
5 x duplexLC
connectorsfor system
andbasebandextensioninterfaces
MDR14connector
for externalsynchroniz
ationinterface
MDR26connectorfor BTSchainingand LMUinterface
4 x RJ-45connectors
for sitesupport,externaltransportand LMP
MDR36connector for
externalalarms &controlsinterface
4 x multi-beam power supplyconnectors for power delivery
to other modules
8 x RJ-48 or 16 x SMB or 2 x TNC or2 x duplex LC connectors for(variable) transport interfaces
10 © 2006 Nokia T-Mobile Oct 2006 TRM 10-17-2006
Company Confidential
Flexi System Module + Transport sub-module
11 © 2006 Nokia T-Mobile Oct 2006 TRM 10-17-2006
Company Confidential
FlexiTransport Overview
FTPB (RAS05.1)
FTEB (RAS05.1)
FTJA (RAS06)
FTOA (RAS05.1ED
FTIA (RAS05.1) FTFA (RAS05.1)
12 © 2006 Nokia T-Mobile Oct 2006 TRM 10-17-2006
Company Confidential
Module name Interfaces Availability Remarks
FTPB 8xE1/T1/JT1 RAS05.1 120/110/100Ω, RJ48c
FTEB 8xE1 coaxial RAS05.1 75Ω, SMB
FTOA 2xSTM1/OC3 RAS05.1 ED 1xSFP, LC equipped
FTFA 2xFlexbus RAS05.1 TNC
FTIA4xE1/T1/JT1
2xFast Ethernet, 1xGERAS05.1
Ethernet supported in RAS06
Optional Gigabit Ethernet interface (SFP)
RJ48C, RJ45, SFP (LC)
FTJA4xE1 coaxial
2xFast Ethernet, 1xGERAS06
Optional Gigabit Ethernet interface (SFP)
SMB, RJ45, SFP (LC)
Transport Sub-modules, overview
13 © 2006 Nokia T-Mobile Oct 2006 TRM 10-17-2006
Company Confidential
Flexi Power Module FPMAExample configuration with• 3 Flexi Power AC sub-modules FPAA• 1 Flexi Power Battery FPBA
14 © 2006 Nokia T-Mobile Oct 2006 TRM 10-17-2006
Company Confidential
Supported HW configurations Configuration Minimum Guaranteed Output
Power (per carrier)Minimum # of Radio Modules
1 carrier omni 8/20/40W FRxB(RAS05.1)2 carrier omni 20W FRxB(RAS05.1CD)2 carrier omni 40W FRxA(RAS06)1+1 20/40W FRxA(RAS05.1)2+2 20W FRxA(RAS05.1CD)2+2 40 W 2xFRxA(RAS06)1+1+1 20/40 W FRIA + FRIB or
FRIA + FRIA (RAS05.1)
2+2+2 40 W 3 x FRxA (RAS06)Up to 4+4+4 20 W 3 x FRxA (after RAS06, to be
agreed.)
1+1+1 Feederless 20/40 W 3x FRIB (RAS05.1)2+2+2 20W FRxA + FRxB (RAS05.1CD)2+2+2 Feederless 20W 3xFRxB (RAS05.1CD)
Up to 6 x 1 20W/40 W 3 x FRxA (after RAS06, to be agreed.)
Up to 6 x 2 20 W 3 x FRxA (after RAS06, to be agreed.)
15 © 2006 Nokia T-Mobile Oct 2006 TRM 10-17-2006
Company Confidential
HSUPARNC
16 © 2006 Nokia T-Mobile Oct 2006 TRM 10-17-2006
Company Confidential
• Max capacities of 450 and 1000 Mbit/s in just two cabinets
• Fully HSPA compatible – SW upgrade only• Dynamic allocation of CS & PS
capacity and transmission interfaces• Easy upgradeability and scalability• Fault tolerant, distributed platform• Flexible transmission solution with
evolution to IP
High Capacity, High Density RNC
17 © 2006 Nokia T-Mobile Oct 2006 TRM 10-17-2006
Company Confidential
All Capacity Variants inOne or Two Cabinets
• Maximum capacities in just two cabinets instead of three or more – high density RNC
• Transmission units integrated to the same cabinets
• Efficient use of expensive site space, enabling site OPEX savings
• Allows co-siting with other RNCs or BSCs
• Several simple capacity steps for flexible upgradeability
300
450
150
Max
450
Mbi
t/s
18 © 2006 Nokia T-Mobile Oct 2006 TRM 10-17-2006
Company Confidential
RNC Freely Configurable Capacity
• RNC 150…450 Mbit/s capacity in three steps • Maximum capacities in just two cabinets• Dimensions: 1800 x 600 x 600 mm • Weight (fully loaded): 230 kg• Power Consumption: 3.9 kW (RNC 450)• Nominal Voltage: -48 V DC• Transmission interfaces: PDH, SDH/Sonet
and Giga Ethernet (RAS06 CD)
*) With Nokia traffic mix. Please evaluate traffic mixfor performance comparisons
RAS05.1
3841152
6800
196 Mbps RN2.0
RAS05Release Performance *)
RNC SWIub Capacity
Erlang
Connectivity- BTS site- Carriers
RAN04
3841152
6800
196 Mbps RN2.1
5121152
8000
450 Mbps RN2.2
300
450
150
Max
450
Mbi
t/s
19 © 2006 Nokia T-Mobile Oct 2006 TRM 10-17-2006
Company Confidential
GigaRNC –Evolution to Data Traffic Growth
• Gigabit RNC in the future platform
• Maximum capacities still in just two cabinets
Max
450
Mbi
t/s 300
450
150
GigaRNC
Max
100
0 M
bit/
s
1000
RAS05.1Release:RNC SW
Iub Capacity
Erlang
Connectivity - BTS site- Carriers
5121152
8000
450 Mbps RN2.2
7682688
20000
1500 Mbps RN3.0
RAS07
20 © 2006 Nokia T-Mobile Oct 2006 TRM 10-17-2006
Company Confidential
• All RNC HW is compatible with HSDPA and HSUPA without new HW
• Introducing HSDPA and HSUPA requires only SW upgrade (RAS 5.1)
• The entire RNC capacity can be used for HSDPA and HSUPA traffic dynamically
HSPA Compatible RNC - SW Upgrade Only
Maximum efficiency with only
two-cabinet RNC!
300
450
150
Max
450
Mbi
t/s
21 © 2006 Nokia T-Mobile Oct 2006 TRM 10-17-2006
Company Confidential
Wide Portfolio of Handovers with Advanced Functionalities
• Benefit from installed 2G network capacity upon 3G service launch with maximum interworking
• Load balancing between 2G and 3G layers reducing overall CAPEX needs
• Optimised use of all available 2G and 3G spectrum• Ensured service continuity and mobility with e.g.
• Inter-system handovers• Load and service based handovers• IMSI based handover WCDMA
GSMGSM
GSM
WW
WCDMA
WCDMA
IDLE mode control
IMSI based handover
Directed RRC connection
setup for load reason
Coverage handover
Load and service
handover
22 © 2006 Nokia T-Mobile Oct 2006 TRM 10-17-2006
Company Confidential
HSUPAHSDPA
23 © 2006 Nokia T-Mobile Oct 2006 TRM 10-17-2006
Company Confidential
Introduction to HSDPA (1/5)HSDPA is introduced in 3GPP Rel5 specifications.
• HSDPA offers a lower cost per bit, provides theoretical peak data rates up to 14.4 Mbps.
• Link adaptation feature, modulation and coding scheme is selected by the BTS-based on feedback information.
• Reduced (re)transmission delays.• Improved QoS control (BTS-based packet scheduling).• HSDPA is mainly intended for non-real time traffic, but can
also be used for traffic with tighter delay requirements.
24 © 2006 Nokia T-Mobile Oct 2006 TRM 10-17-2006
Company Confidential
Introduction to HSDPA (2/5)
25 © 2006 Nokia T-Mobile Oct 2006 TRM 10-17-2006
Company Confidential
Introduction to HSDPA (3/5)
• Additional unit with MAC functionality (HSDPA MAC or MAC-hs) is installed at the BTS.
• Retransmission controlled by the BTS reduces retransmission delay.
• The Iub interface (BTS-RNC) requires a flow control mechanism to ensure that BTS buffers are used properly and there is no buffer overflow.
• The RNC still retains the RLC functionalities as it provides retransmission in cases when HS-DSCH BTS retransmission fails.
Pack
ets
Pack
ets
RLC ACK/NACK
L1 ACK/NACK
R’99 DCH / DSCH R’5 HS-DSCH
26 © 2006 Nokia T-Mobile Oct 2006 TRM 10-17-2006
Company Confidential
HARQ &CodingFlow Control
Introduction to HSDPA (4/5)TerminalsWBTSRNC
• Buffer & Scheduler: buffering of data, terminal scheduling, coding & modulation selection – QPSK is still used and a new modulation type 16 QAM is introduced.
• H-ARQ, retransmission handling and coding.• Uplink feedback decoding.
• Flow control towards the SRNC.
PacketsBuffer & Scheduler
ACK/NACK &FeedbackDecoding
27 © 2006 Nokia T-Mobile Oct 2006 TRM 10-17-2006
Company Confidential
HSUPAHSUPA
28 © 2006 Nokia T-Mobile Oct 2006 TRM 10-17-2006
Company Confidential
HSUPA Peak Data Rates
• Max Layer 1 and Layer 2 (RLC) throughput shown below
1 x SF4 0.73 Mbps 0.67 Mbps
# of codes 10 ms 10 ms
2 x SF4 1.46 Mbps 1.38 Mbps
1
UE category
2
3
4
5
2 x SF4 1.46 Mbps 1.38 Mbps
2 x SF2 2.0 Mbps 1.88 Mbps
2 x SF2 2.0 Mbps 1.88 Mbps
6 2 x SF2 + 2 x SF4 2.0 Mbps 1.88 Mbps
-
2 ms
-
1.46 Mbps
2.9 Mbps
-
5.76 Mbps
-
2 ms
-
1.28 Mbps
2.72 Mbps
-
5.44 Mbps
Max L1 data rate Max RLC data rate
RLCL1RLC input rate
L1 output rate
29 © 2006 Nokia T-Mobile Oct 2006 TRM 10-17-2006
Company Confidential
HSUPA UE Categories
• HSUPA uses BPSK modulation with multicode transmission• Max 2 Mbps with 10 ms TTI• Up to 5.76 Mbps with 2 ms TTI
HSUPA category Codes Data rate
with 10 msData rate with 2 ms
1 1 x SF4 0.73 Mbps -
2 2 x SF4 1.46 Mbps 1.46 Mbps
3 2 x SF4 1.46 Mbps -
4 2 x SF2 2 Mbps 2.9 Mbps
5 2 x SF2 2 Mbps -
6 2xSF2 + 2xSF4 2 Mbps 5.76 Mbps
30 © 2006 Nokia T-Mobile Oct 2006 TRM 10-17-2006
Company Confidential
Differences between HSDPA and HSUPA
HSDPAHSDPA HSUPAHSUPA
ModulationModulation QPSK and 16-QAMQPSK and 16-QAM BPSK and Dual-BPSKBPSK and Dual-BPSK
Soft handoverSoft handover NoNo YesYes
Fast power control
Fast power control NoNo YesYes
SchedulingScheduling Point tomultipointPoint to
multipointMultipoint
to pointMultipoint
to point
Non-scheduled transmission
Non-scheduled transmission NoNo Yes, for minimum/
guaranteed bit rateYes, for minimum/guaranteed bit rate
Required for near-far avoidance
Efficient UE power amplifier
Scheduling cannot be as fast as in HSDPA
Similar to R99 DCH but with HARQ
HSUPA is rather Enhanced DCH than “reversed HSDPA”
31 © 2006 Nokia T-Mobile Oct 2006 TRM 10-17-2006
Company Confidential
HSUPA vs UL DCH
Feature
Variable spreading factor
Fast power control
Adaptive modulation
BTS based scheduling
DCH
Yes
Yes
No
No
HSUPA
Yes
Yes
No
Yes
Fast L1 HARQ No Yes
HSDPA
No
No
Yes
Yes
Yes
Multicode transmission No Yes Yes
HSUPA (E-DCH) is an uplink DCH with Node B based HARQ and scheduling and true multicode support
Soft handover Yes Yes No(associated DCH only)
32 © 2006 Nokia T-Mobile Oct 2006 TRM 10-17-2006
Company Confidential
DCH vs E-DCH Retransmissions
Terminal
BTS
RNC
DCH E-DCH
Packet Retransmission
RLC ACK/NACK
Retransmission
L1 ACK/NACK
Packet (1st TX)
Combining of packet and retransmission
33 © 2006 Nokia T-Mobile Oct 2006 TRM 10-17-2006
Company Confidential
HSUPA Fast Retransmissions
• Fast ACK/NAK from BTS• N-process Stop-And-Wait (SAW) HARQ• In soft handover: each BTS sends ACK, retransmission if UE has not received any
ACKs
TerminalNode BRNC Correctly received packet
HARQ control and soft combining
ACK/NAK
ACK/NAK
E-DCH data
E-DCH data
Packet Reordering