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Document includes :Chapter 1 General Introduction Chapter 2 Product Description Chapter 3 Product Highlights Chapter 4 Product Configuration
Citation preview
ZXUR 9000 Product Introduction
GSM&UMTS Dual Mode
Chapter 1 General Introduction
Chapter 2 Product Description
Chapter 3 Product Highlights
Chapter 4 Product Configuration
© ZTE Corporation. All rights reserved.
ZXUR 9000 Location in Mobile Network
SGSN GGSN
BTS/NodeB
BSC/RNC
NodeB
BTS
BSC/RNC
BTS/NodeB
MSC-S/VLR GMSC-S
Other-PLMN
PSTN
MGW GMGW
Gb/IuPs
A/IuCs
A/IuCs Mc
Nb
Nc
Iur/Iur-g
Gb/IuPs
ZXUR 9000
Abis/Iub
Abis/Iub
Abis
Iub
CS Data PS Data
CS/PS Mixed Data
Signaling
3
© ZTE Corporation. All rights reserved.
Functionality of ZXUR 9000 in General
ZXUR 9000
ZXUR 9000
Node B
Node B
Node B
Abis/Iub
Iur-g
GERAN/UTRAN
BSC/RNC Basic Function
System information broadcast and
MS access control
Mobility management such as
handover, relocation, etc.
Radio resource management such as
power control, cell resource
allocation, etc.
CS and PS RAB services
Radio channel encryption for
transmitted data and signaling
4
© ZTE Corporation. All rights reserved.
Design Based on ZTE Common Hardware Platform
CSCF
AGCF
BGCF
MGCF
MME
PDN-GW
Serving-GW
PSS/PES
IM-MGW
MSCs/MSCe
MGW
BSC
RNC
USPP
SGSN
GGSN
AGW
PDSN/HA
All IP Platform Design
BSC/RNC/CN Co- Platform
GSM/UMTS/CDMA Co-Platform
Common platform enhance board integration, system stability and save spares
GSM and UMTS networks share interfaces and transmission, saving cost
Unified OMC simplifies O&M, saves manpower and unifies GU capacity planning
Resource pool, flexible GU resource allocation
Unified RRM realizes intelligent access, handover and GU load balance
Converged OMC Platform
Co
nvergen
ce
5
© ZTE Corporation. All rights reserved.
ZXUR 9000 Rack Components
The rack:
600mm width*800mm depth, in line with
ETS 300 119 or IEC60297 standard
2200mm height, support 3 sub-rack
configuration
Sub-racks are configured by sequence:
main sub-rack first, than sub-rack 1 and 2
Extension sub-rack
2
Power distribution sub-rack:
3U height, in top of the rack
Provide power distribution for the whole
system, power indication and outer
environment monitoring function
Dual power input, support automatic
switch between 2 power input
Wind guide sub-rack:
Provide wind duct for forward/backward wind to isolate the system wind duct and improve cooling efficiency
The wind duct is below service sub-rack.
The wind duct for main sub-rack is 2U height, and for extension sub-rack is 4U. Wind duct for each sub-rack is placed below the sub-rack.
Main
sub-rack
Extension sub-rack 1
6
© ZTE Corporation. All rights reserved.
ZXUR 9000 Service Sub-rack Introduction
7
19 inch standard shelf
Front and rear plug-in shelf for each sub-racks, each
have 14 slots
Processing boards and O&M boards in front shelves ,
designed with ATCA standard board
Interface boards and switching boards in rear shelves
ZXUR 9000 shelf (Front, Rear, Side view)
ZXUR 9000 includes two types of sub-racks:
Main sub-rack, service handling plus O&M and
clock function, compulsory for configuration.
Extension sub-rack, service handling, configured
based on capacity requirement, configured from 0-2.
Components of each sub-rack (from top to
bottom) :
FAN unit (3 FANs, 2 for front shelf heat dissipation,
1 for rear shelf heat dissipation)
Plug-in boards (front board 8U, rear board 9U)
Power unit (each sub-rack configure 2)
ZXUR 9000 Rack
Distributed design, resource pool for service handling ensure high reliability, strong processing capability with high efficiency.
7
Chapter 1 General Introduction
Chapter 2 Product Description
Chapter 3 Product Highlights
Chapter 4 Product Configuration
© ZTE Corporation. All rights reserved.
ZXUR 9000 System Architecture
ZXUR 9000 is designed with all IP switching architecture.
Logical units including: access unit, switching unit, processing unit, O&M unit etc.
Power, FAN
Processing Unit
O&M
Environment Monitoring Unit
Access U
nit
Switch
ing
Un
it
ZXUR 9000
BTS/Node B
BSC/RNC
CN
STM - 1
E 1 FE GE
485
Abis/Iub
Iur-g/Iur
A/Gb/Iu
9
© ZTE Corporation. All rights reserved.
ZXUR 9000 Board Classification
Switching Board
Processing Board
Interface Board
Switching board deals with the switching in control plane (BASE) and media plane (FABRIC). Besides the intra-shelf switching, it also provides switching channels for all inter-shelf communication.
Processing board handles the protocol processing in control plane and user plane, and is responsible for the overall processing and control in terms of O&M.
Interface board offers access of STM-1, E1/T1, CSTM-1 via interfaces including A, Abis, Gb, Iu, Iub and Iur to meet various requirements of networking.
10
© ZTE Corporation. All rights reserved.
Switching and Processing Board
Boards Full Name Function Description Conf. Principle
EGBS Enhanced GE Base Switch board
Handles switching in BASE, namely control plane; provides switching channels for all intra-shelf and inter-shelf communication in control plane.
The number of EGBS is always 2 for each shelf. GSM and UMTS can share these 2 EGBSs.
EGFS Enhanced GE Fabric Switch board
Handles switching in FABRIC, namely media plane; provides switching channels for all intra-shelf and inter-shelf communication in media plane. Provides clock function.
The number of EGFS is always 2 for each shelf. GSM and UMTS can share these 2 EGFSs.
11
Physical Boards Full Name Logical
Boards Function Description Conf. Principle
USP Universal Service Process board
RUP Processing in user plane; handles the voice and data processing within system. Capacity decides the
number of USP. GSM and UMTS should configure respectively. DMP is for UMTS only.
CMP Control plane processing, for common signaling processing among cells
DMP Control plane processing, dedicated for user signaling processing irrelative with cells
UMP Universal Management Process board
OMP Overall management 2 OMPs, 2 OMMs. GSM and UMTS share the boards. OMM Local O&M
ETCB Enhanced Trans Coder Board
Support transcoding and rate adaptation. Apply to GSM only
Switching Board
Processing Board
© ZTE Corporation. All rights reserved.
Interface Board Boards Full Name Function Description GSM or UMTS
EAPB Enhanced ATM Process
Board
Offer interface for ATM over
STM-1 Apply to UMTS only
EDTA Enhanced Digital Trunk board
ATM version Offer interface for ATM over E1 Apply to UMTS only
ESDTA Enhanced SDH Digital Trunk
board ATM version
Offer interface for ATM over
channelized STM-1 Apply to UMTS only
EDTI Enhanced Digital Trunk board
IP version Offer interface for IP over E1 Apply to GSM and UMTS
ESDTI Enhanced SDH Digital Trunk
board IP version
Offer interface for IP over
channelized STM-1 Apply to GSM and UMTS
EGPB Enhanced GE Process Board Offer GE/FE interfaces Apply to GSM and UMTS
ESDTG Enhanced SDH Digital Trunk
board GSM version Offer access of TDM CSTM-1 Apply to GSM only.
EDTT Enhanced Digital Trunk board
TDM version Offer access of TDM E1/T1 Apply to GSM only
ESDTT Enhanced SDH Digital Trunk
board IP version Offer access of TDM CSTM-1 Apply to GSM only
Abundant interfaces for different networking requirements
12
© ZTE Corporation. All rights reserved.
Signaling Processing Flow-GSM/UMTS
Signaling Processing Flow
13
© ZTE Corporation. All rights reserved.
Service Processing Flow-GSM(IP A)/UMTS
CS Service Processing Flow
PS Service Processing Flow
CS Service Processing Flow
14
© ZTE Corporation. All rights reserved.
Service Processing Flow-GSM(TDM A)
CS Service Processing Flow
PS Service Processing Flow
15
© ZTE Corporation. All rights reserved.
Huge Capacity & Flexible Combination
1. Software configuration only to realize working mode adjustment, cost free migration from GSM to UMTS. 2. G/U capacity is a combination of GSM and UMTS capacity, just for example.
Conf. Working
Mode TRX Site Cell Erl BHCA(K)
PS Thr. (Gbps)
MCS9 PDTCH(K
)
Single Shelf
G 3,200 1,200 1,200 19,200 5,600 NA 11.2
U NA 900 1,800 36,000 7,000 6.4 NA
G/U 1,920/NA 720/450 720/900 11,500/18,00
0 2,800/3,500 NA/3.2 6.7/NA
Two Shelves
G 8,320 2,800 3,120 49,900 14,000 NA 29.1
U NA 2,250 4,500 90,000 17,400 16 NA
G/U 3,200/NA 1,600/1,350 1,200/2,700 19,200/ 54,000
5,600/ 10,500
NA/9.6 11.2/NA
Three Shelves
G 12,250 2,800 5,600 73,500 16,800 NA 42.8
U NA 2,800 5,600 234,000 13,050 41.6 NA
G/U 5,760/NA 2,160/2,250 2,160/4,500 34,500/ 90,000
8,400/ 17,400
NA/16 20.1/NA
16
Chapter 1 General Introduction
Chapter 2 Product Description
Chapter 3 Product Highlights
Chapter 4 Product Configuration
© ZTE Corporation. All rights reserved.
Huge Capacity in One Rack
Traffic 234,000Erl
BHCA 29,000k
Throughput 41.6Gbps
Node B 2800
Cell 5600
UMTS Single Mode Capacity
IP-based switch platform, data transmission with high efficiency.
High integrity design, realize huge capacity, facilitate expansion and evolving data processing capability.
ZXUR 9000
Traffic 73,500Erl
BHCA 16,800k
MCS9 PDTCH 42,800
TRX 12,250
GSM Single Mode Capacity
Traffic 34,500Erl+90,000Erl
BHCA 8,400k+17,400k
Throughput 1.01 Gbps+16Gbps
Cell 2,160+4,500
GU Dual-Mode Capacity (Typical Value GSM+UMTS)
18
© ZTE Corporation. All rights reserved.
Rich Interface Types for Various Networking Requirements
19
2G&3G share switch unit
2G&3G share O&M unit
2G&3G share IP interface unit
ATM interface unit for 3G
TDM interface unit for 2G
© ZTE Corporation. All rights reserved.
High Reliability Design—All Boards Have Backup
Logical Unit Physical Board
Logical Board Backup Method
O&M Unit UMP OMM 1+1
OMP 1+1
Access Unit
EAPB EAPB 1+1
ESDTA ESDTA 1+1
EDTA EDTA Load sharing
EGPB EGPB 1+1, load sharing
EDTI EDTI 1+1
ESDTI ESDTI 1+1
EDTT EDTT 1+1
ESDTT ESDTT 1+1
ESDTG ESDTG 1+1
Switch Unit EGBS EGBS Load sharing
EGFS EGFS Load sharing
Processing Unit
USP RUP/DMP Load sharing
CMP 1+1
ETCB ETCB Load sharing
20
© ZTE Corporation. All rights reserved.
Based on Unified Platform, Flexible Dual Mode Resource Sharing and System Processing
Co-rack, co-shelf, co-power supply, FAN and
other fundamental facility
Co-boards (interface board, switching board
and O&M board)
Share hardware of processing board, only software configuration to adjust working mode
IP transmission resource sharing to improve
efficiency
Co-network operation and management
Unified RRM (cell load sharing between 2G and
3G)
21
Chapter 1 General Introduction
Chapter 2 Product Description
Chapter 3 Product Highlights
Chapter 4 Product Configuration
© ZTE Corporation. All rights reserved.
ZXUR 9000 Configuration Principle and Highlight
3-layer shelf, main shelf is preferred for the lower layer.
Every shelf is composed of front and rear plug-in shelf, with 14 board slots for each.
UMP is fixed in No. 5-8 slot in front plug-in shelf; EGBS and EGFS fixed in No. 19-22 slots in
rear plug-in shelf; interface board is configured in rear plug-in shelf, while USP and ETCB in
front plug-in shelf, and no slot limitation for these boards.
The configuration of processing boards depends on traffic model and have several
limitations for each board need to be considered and calculated.
23
Almost non-limitation on slot design, easy to expand. Flexible and easy configuration for
conversion between GSM and UMTS modes.
Any idle slot is available, high shelf utilization.
Highlight
Configuration Principle
© ZTE Corporation. All rights reserved.
Processing Board Capability
Index CMP RUP ETCB PDCH - 5000 -
CS Erl - 7000 4800
Cell 1024 560 -
BHCA (K) 2800 - -
TRX 2048 - -
Index CMP DMP RUP MAX PS Throughput(Mbps) - - 1600
MAX CS Erl (non encrypted) - - 9000
BHCA (K) 4350 2900 -
Cell 1200 - -
Online Subs. (D+F+P) 120000 65000 34000
Online Subs. (D+F) 120000 65000 8000
GSM Mode:
UMTS Mode:
Remark: D-DCH, F-FACH, P-PCH For UMTS, The PS index of RUP is based on subscribed MBR 4M, HS896/128 with 2K signaling (UL+DL)
24
© ZTE Corporation. All rights reserved.
Processing board Calculation in GSM mode
In GSM detail calculation, USP consists of RUP and CMP, and ETCB is needed as A interface
adopts TDM transmission type, the formulas are shown as following:
N_USP= N_CMP+ N_RUP
N_CMP= ROUNDUP (MAX (N_BHCA/ 2800K, N_TRX/ 2048, N_Cell/ 1024)/ (1-RelayP), 0)*2
IP A:
N_RUP= MAX (2, ROUNDUP (MAX (N_Cell/ 560, N_MCS9/ 5000)+N_Erl/ 7000)/ (1-RelayP), 0))
TDM A:
N_RUP=MAX (2, ROUNDUP (MAX (N_Cell/ 560, N_MCS9/ 5000)/ (1-RelayP), 0))
N_ETCB= MAX (2, ROUNDUP ((N_Erl/4800, 0)/ (1-RelayP), 0))
Ater :
N_RUP=MAX (2, ROUNDUP (MAX (N_Cell/ 560, N_MCS9/ 5000)/ (1-RelayP), 0))
In which:
• N_BHCA: Number of BHCA
• N_TRX: Number of TRX
• N_Cell: Number of Cell
• N_MCS9: Number of PDCH
• N_Erl: Number of Erl
• RelayP: Processing redundancy ,default as 10%
25
© ZTE Corporation. All rights reserved.
Processing board Calculation in UMTS mode
In UMTS detail calculation, USP consists of RUP, CMP and DMP, the formulas are shown
as following:
N_USP= N_CMP+ N_DMP+ N_RUP
N_CMP= ROUNDUP (MAX (N_BHCA/ 4350K, N_Cell/ 2000, N_PDF/ 120000)/ (1-RelayP), 0)* 2
N_DMP= MAX (2, ROUNDUP (MAX (N_BHCA/ 2900K, N_PDF/ 65000)/ (1-RelayP), 0))
N_RUP= MAX (2, ROUNDUP (MAX ((N_PS/ 1600 +N_Erl/ 9000), N_PDF/ 34000)/ (1-RelayP), 0))
In which:
• N_RUP: Number of RUP
• N_PS: Throughput of PS
• N_BHCA: Number of BHCA
• N_Erl: Number of Erl
• N_Cell: Number of Cell
• N_PDF: Number of active subscribers in PCH, DCH or FCH cell
• RelayP: Processing redundancy ,default as 10%
26
© ZTE Corporation. All rights reserved.
Interface Board Dimensioning
The limitation factor for interface board is listed in the following table:
27
Interface
Board
Port
Number
NodeB
Number Throughput Capacity Time Slot CID
EDTA 32 E1 42 NodeB Max 60Mbps (UL or DL) - 1260K/h CID setup and delete
EAPB 4 STM-1 420 NodeB Max 300Mbps (UL or DL) - 1260K/h CID setup and delete
ESDTA 4 CSTM-1 168 NodeB Max 300Mbps (UL or DL) - 1260K/h CID setup and delete
EDTT 32 E1 - -
Abis: 992 TS
- A: 992 TS
Ater: 792 TS
ESDTT 4 CSTM-1 - - A: 7812 TS -
ESDTG 4 CSTM-1 - -
Abis: 3906 TS
- A: 7812 TS
Ater:3168 TS
EDTI 32 E1 512 NodeB
(PPP)
55 Mbps(DL) and 110 Mbps (UL+DL)
-
© ZTE Corporation. All rights reserved.
Interface board Capacity Interface
Board Port Number
NodeB
Number
Throughput
Capacity Time Slot
ESDTI 4 CSTM-1 512 NodeB
(PPP)
Abis:(160Byte) DL:440M
DL+UL:800M
Gb:(200Byte) DL:250M
DL+UL:500M
Iub:(340Byte) DL:440M
DL+UL:880M
IuCS:(95Byte) DL:440M
DL+UL:470M
IuPS:(660Byte) DL:440M
DL+UL:880M
EGPB 4 GE 400 NodeB
(1588V2)
Abis:(160Byte) DL:1110M
DL+UL:1110M
A:(95Byte) DL:660M
DL+UL:660M
Gb:(200Byte) DL:1390M
DL+UL:1390M
Iub:(340Byte) DL:2360M
DL+UL:2360M
IuCS:(95Byte) DL:680M
DL+UL:680M
IuPS:(660Byte) DL:4590M
DL+UL:2880M
© ZTE Corporation. All rights reserved.
ZXUR 9000 Summary
29
Huge capacity, high integrity, easy to expand, effectively saving footprint; adapt to various environment and fast growth of traffic load, protecting operators’ investment.
All-IP structure meets the requirement of network evolution. Compared with TDM/ATM platform, IP switch management features convenient maintenance, simple configuration, flexible expansion, higher delivery efficiency and more flexible delivery mechanism.
The entire system adopts redundancy design by platform and high reliability. No single point fault, online software download supported, loading and being activated in remote.
Simple configuration, convenient maintenance. Few board types, including processing, interface and switching boards, making configuration simpler and expansion easier, also reducing spare parts types, cutting down maintenance cost.
Abundant interfaces, flexible networking, TDM/ATM/IP protocol stack and diverse physical interfaces like E1, STM-1, channelized STM-1, FE and GE supported, flexibly responding to transmission changes.
ZXUR 9000
Complete transmission and processing resources sharing between GSM and UMTS, unified RRM realizing users flexible access to Gu network, balancing loads, maximally utilizing network resources. Smooth evolution from 2G to 3G by software upgrading.
© ZTE Corporation. All rights reserved.
SW Configuration for Mode & Capacity Modification
Capacity modification by software configuration
Mode modification by software configuration
Flexible and easy mode modification or capacity modification.
GSM GSM
UMTS
GSM
GSM
U G
U G
U G
U G
U G U G
U G
30
© ZTE Corporation. All rights reserved.
IP Transmission Resource Sharing
31
Phase I: Static Allocation, Configurable
Phase II: Dynamic Allocation
BTS/Node B BSC/RNC
BSC
RNC Manual Configuration
Period 1
Period 2
Period 3
Abis Iub
Abis Iub
Abis Iub
BTS/Node B BSC/RNC
BSC
RNC Dynamic Adaptation
Period 1
Period 2
Period 3
Abis Iub
Abis Iub
Abis Iub
© ZTE Corporation. All rights reserved.
Efficiency Improvement – Co-O&M Platform Existing O&M
GSM EMS
Area 1
BSC
RNC EMS
RNC
Area 2
BSC/RNC UEMS
Unified O&M
Area 1
BSC/RNC
Unified O&M in BSC/RNC
Centralized FM: combined/optimized alarms
Centralized PM:KPI optimization
Integrated CM:Simplified configuration, inter NE
configuration
Unified Platform, integrated O&M
32
© ZTE Corporation. All rights reserved.
Distributed Co-RRM, G/U convergence
Synthesis strategy including: G/U radio resource access control, transmission resource access control, cell attribute access control.
Access Control
Congestion Control
Procedure including: G/U optimized handover target cell selection and handover procedure.
Handover Control
Load Control
Co-RRM Key Algorithm
Strategy including: first resort on intra system load balance then inter system load balance; specific service first resort on inter system balance.
Load Balance
Unified loading standard between different modes
Co-RRM Entities exchange content(Static Information, Dynamic Information, Cell synthesis load)
CoRRM Entities exchange method (Requiring or reporting)
Co-RRM Algorithm highlights
Optimized inter system handover procedure
Optimized load balancing strategy
Unified transmission and radio resources management
Optimized resource alarm, congestion control and load control
Strategy including: G/U triggered inter system handover, service release, re-configuration of transmission resource
Co-RRM enhance the co-operation between GSM and UMTS networks, optimize resource
utilization and service provision, improves service quality.
Synthesis Estimation strategy optimize inter system load balancing.
33
© ZTE Corporation. All rights reserved.
Performance Improvement – Co-RRM
Inter-RAT handover based on GSM load
Load information sharing
between GSM & WCDMA:
Load value
RT load
NRT load
Cell capacity
GSM Coverage
UMTS Coverage
Inter-RAT handover based on WCDMA load
BSC/RNC
BSC
RNC
34
© ZTE Corporation. All rights reserved.
Performance Improvement –Inter-RAT Handover
BSC RNC
UMTS/GSM CN
Legacy Inter-RAT IWK
From core-route mode to intra shelf/inter shelf information exchange
Low delay and unlimited information sharing, unbelievable inter-RAT cooperation
efficiency and performance!
ZXUR 9000 inter-RAT IWK
GSM
UMTS
G/U
Internal Processing
35
© ZTE Corporation. All rights reserved.
Processing Board Capability
For UMTS, the PS index of RUP is based on subscribed MBR 4M, HS896/128 with 2K signaling (UL+DL). And for the different average rate of PS active user, the capacity of RUP is changed. The relation between VACT and TRUP is following the table below:
In which:
VACT : The average rate of PS active user
TRUP: The throughput capacity of RUP
The CS index of RUP is based on VAF is 0.5. With different VAF, the non encrypted CS capacity of RUP is 9000*0.5/VAF, and the range of VAF is 0.5-1.
36
VACT
(Kbps) 16 32 48 64 96 128 192 256 512 1024 2048 4096
TRUP
(Mbps
)
110 190 270 330 450 530 570 620 740 900 1040 1600
© ZTE Corporation. All rights reserved.
ZXUR 9000 GSM&UMTS Dual-Mode Configuration Method1: Calculate GSM and UMTS capacity separately, common boards such as UMP, EGBS, EGFS are shared, for
interface boards, processing boards configured separately.
Method 2: GSM and UMTS both have typical configuration packages for processing boards of different capacity demands.
Example:
GSM IP A(2400TRX,13KErl)+ UMTS (2000 cell, CS 14KErl, PS 5Gbps)
Choose and combine the suitable packages:GSM step 5 + UMTS step 3.
Y-1 Single shelf Y-2 Two shelves Y-3 3 shelves
G U
IPA TDM TC外置
#1 #2 #3 #4 #5 #6 #7 #8 #9 #10 #11 #12 #13 #14 #15 #1 #2 #3 #4 #5 #6 #7 #1 #2 #3 #4 #5 #6 #7 #8 #9 #10 #11
#1 Y-1 Y-1 Y-1 Y-2 Y-2 Y-2 Y-2 Y-2 Y-3 Y-3 Y-3 Y-3 Y-3 Y-1 Y-2 Y-2 Y-2 Y-2 Y-2 Y-3 Y-1 Y-1 Y-2 Y-2 Y-2 Y-2 Y-2 Y-2 Y-3 Y-3 Y-3
#2 Y-2 Y-2 Y-2 Y-2 Y-2 Y-2 Y-3 Y-3 Y-3 Y-3 Y-3 Y-2 Y-2 Y-2 Y-2 Y-2 Y-3 Y-3 Y-2 Y-2 Y-2 Y-2 Y-2 Y-2 Y-2 Y-3 Y-3 Y-3 Y-3
#3 Y-2 Y-2 Y-2 Y-2 Y-2 Y-2 Y-3 Y-3 Y-3 Y-3 Y-2 Y-2 Y-2 Y-3 Y-3 Y-3 Y-3 Y-2 Y-2 Y-2 Y-2 Y-2 Y-3 Y-3 Y-3 Y-3 Y-3
#4 Y-2 Y-2 Y-2 Y-2 Y-3 Y-3 Y-3 Y-3 Y-2 Y-2 Y-3 Y-3 Y-3 Y-3 Y-3 Y-2 Y-2 Y-3 Y-3 Y-3 Y-3 Y-3 Y-3
#5 Y-3 Y-3 Y-3 Y-3 Y-3 Y-3 Y-3 Y-3 Y-3 Y-3 Y-3 Y-3 Y-3 Y-3 Y-3 Y-3 Y-3 Y-3
#6 Y-3 Y-3 Y-3 Y-3 Y-3 Y-3 Y-3 Y-3 Y-3 Y-3
#7
#8
#9
#10
#11
#12
#13
37
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Thanks!