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8/10/2019 Introduction of UMTS RAN15.0_V1.3
http://slidepdf.com/reader/full/introduction-of-umts-ran150v13 1/125
www.huawei.com
Security Level:
HUAWEI TECHNOLOGIES CO., LTD.
Introduction of UMTS
RAN15.0
Author: xiqinghua 00160410
Email: [email protected]
Version: V1.3(20130128)
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HUAWEI TECHNOLOGIES CO., LTD. Huawei Confidential 3
Capacity Network Synergy
Hardware & Platform
•New RNC Platform
•New NodeB Hardware-WRFU
•New Micro NodeB -BTS3803E•RNC in Pool
•Turbo IC
•TDM
•DPCH PO•CPICH
HSPA+ Evolution
•DB-HSDPA
•Flexible DC/DB-HSDPA•4C-HSDPA
•UMTS-LTE Inter-RAT Cooperation
•HetNet Macro & Micro Co-carrier Uplink
Interference Control
•U900-U2100 Multiband Direct Retry
Based on UE Location
•MOCN Enhancement
Summary of RAN15.0
OAMExperience
•Platinum user prioritizing
•Differentiated Service Based on
Resource Reservation
•Fast customized QoE optimization
•Capacity Visualization Platform
•EBC (Event Based Counter)
•Turbo IC
•HSUPA Time Division Scheduling
•Load Based Dynamic Adjustment of
PCPICH Power
•DPCH Maximum Power Restriction
•DPCH Pilot Power Adjustment
•Layered Paging in Idle Mode
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HUAWEI TECHNOLOGIES CO., LTD. Huawei Confidential 4
HSPA
Network KPI
•Accessibility Improvement
•Retainability Improvement
•Mobility Improvement
Experience
•SMS Paging Enhancement
•Cell HSPA Capability Indicator
Enhancement
Summary of RAN15.0 (system capability)
Note:System Capability Info only for Huawei internal training
OAM
•Sector level Counter for Multi-RRU
Co-cell•HSUPA Scheduler base on UE
location•Uplink Enhanced CELL_FACH
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HUAWEI TECHNOLOGIES CO., LTD. Huawei Confidential 5
ID特 称
Feature Name Owner
WRFD-150201 宏微同频上行干扰控制 Macro & Micro Co-carrier Uplink Interference Control qichunmei 00159872,
WRFD-150204 白金用户优先 Platinum User Prioritizing wangxiaomei 54131/huawei,
WRFD-150205 Idle态分级寻呼 Layered Paging in Idle Mode mijunwen 00151496/huawei,
WRFD-150206 Turbo IC Turbo IC qihuali 00168890/huawei,
WRFD-150207 4C-HSDPA 4C-HSDPA liuqi 51062/huawei,WRFD-150208 灵活DC/DB-HSDPA Flexible DC/DB-HSDPA liuqi 51062/huawei,
WRFD-150209 DB-HSDPA DB-HSDPA wangxiaoxia 00151683/huawei,
WRFD-150211 RNC in Pool负荷分担 RNC in Pool Load Sharing gaolonglong 00151769/huawei,
WRFD-150212 RNC in Pool节点备份 RNC in Pool Node Redundancy gaolonglong 00151769/huawei,
WRFD-150240 RNC in Pool多逻辑RNC RNC in Pool Multiple Logical RNCs gaolonglong 00151769/huawei,
WRFD-150213 MOCN Iub传输资源独立分配
MOCN Independent Iub Transmission Resource
Allocation xubing 00141968/huawei,
WRFD-150214 MOCN CE资源独立分配 MOCN Independent CE Resource Allocation xubing 00141968/huawei,
WRFD-150222 HSUPA时分调度 HSUPA Time Division Scheduling wanghaidan 00136487/huawei,
WRFD-150215 LTE到UMTS的SRVCC伴随PS切换 SRVCC from LTE to UMTS with PS Handover liyi 00133305/huawei,
WRFD-150216 基于负载的UMTS到LTE的PS重定向 Load Based PS Redirection from UMTS to LTE juzhiqiang 51663/huawei,
WRFD-150217 基于负载的UMTS到LTE的PS切换 Load Based PS Handover from UMTS to LTE juzhiqiang 51663/huawei,
WRFD-150219 基于覆盖的UMTS到LTE的PS重定向 Coverage Based PS Redirection from UMTS to LTE juzhiqiang 51663/huawei,
WRFD-150220 基于覆盖的UMTS到LTE的PS切换 Coverage Based PS Handover from UMTS to LTE juzhiqiang 51663/huawei,
WRFD-150231 基于RIM的UMTS辅助小区选择 RIM Based UMTS Target Cell Selection for LTE xukai 00136474,
WRFD-150230 DPCH Pilot功率调整 DPCH Pilot Power Adjustment lijian 00138284/huawei,
WRFD-150232 基于用户位置的多频段直接重试 Multiband Direct Retry Based on UE Location wuxianbin 00126768/huawei,
WRFD-150233 基于资源预留的差异化服务 Differentiated Service Based on Resource
Reservation liujianjun 58884/huawei,
WRFD-150236 基于负载的导频功率动态调整 Load Based Dynamic Adjustment of PCPICH guanlijun 00184006/huawei,
WRFD-150235 DPCH最大功率限制 DPCH Maximum Power Restriction weibo 00168749/huawei,
Feature Owner List
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HUAWEI TECHNOLOGIES CO., LTD. Huawei Confidential 6
Content
1 Summary of RAN15.0
2 RAN15.0 Features in Details
d l f k
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HUAWEI TECHNOLOGIES CO., LTD. Huawei Confidential 7
OAMExperience
Hardware & Platform
New RNC Platform
New NodeB Hardware-WRFU
New Micro NodeB -BTS3803E
RNC in Pool
CapacityHardware& Platform Network SynergyHSPA+
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HUAWEI TECHNOLOGIES CO., LTD. Huawei Confidential 8
New RNC Platform: BSC6910
Before
•24 Gbps
• 3720K BHCA
• Service awareness
• 40 Gbps• 5300K BHCA
• Interface board
pooling
•Control plane
load sharing
•120 Gbps
• 64M BHCA
• EGPU, 1 for allprocessing board
• CP/UP dynamic
sharing
• Tbps level capacity
with
software upgrade
• Cloud Architecture,
sharing resourcesanywhere
G&U
GSM
UMTS
BSC 6900
Single platform for GU
BSC6900
Board pooling
optimization
2012Q2
BSC6910
New platform for MBB
2013Q2 (R15.0)
Cloud and Convergence
Future
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HUAWEI TECHNOLOGIES CO., LTD. Huawei Confidential
BSC6910: Unified Hardware and Maximize Resource Utilization
Page 9
Unified Hardware
Benefits:
• Unified hardware, greatly simplify HW
management
• Unified CP/UP processing enable dynamic
resource reconfiguration
Benefits:
• Automatic CP/UP reconfiguration based on historical
statistics
• Maximum resource utilization, adaptation to the
network evolution
One for All
DPUb
DPUe
SPUa
SPUb
DPUd
DPUg
XPUa
XPUb
EGPUa
UMTS GSM
Automatic CP / UP reconfiguration
UP Capacity
MBB Traffic model
CP CapacitySmartphone
Traffic model
CP Resource
UP Resource
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HUAWEI TECHNOLOGIES CO., LTD. Huawei Confidential 10
WRFUa (100W) Radio Unitmodule
WRFUa (100W)
Frequency Band RX: 1920~1980; TX:
2110~2170
Multi Mode Support UMTS Mode
Tx/Rx 1T2R
Working Bandwidth 25M
Output Power
@RF module
Antenna Port
(W)
4C/80 W
1 Carrier: per carrier 80W
2 Carrier: per carrier 50W
3 Carrier: per carrier 30W
4 Carrier: per carrier 20W
Weight (Kg) 11Kg
Input Power -48VDC (-38.4 ~ -57VDC)
New NodeB Hardware - WRFUa (100W)
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HUAWEI TECHNOLOGIES CO., LTD. Huawei Confidential 11
Micro NodeB- BTS3803E
• Frequency : 2100 MHz, others developed as required
• BWM: 20MHz, 1/11/101/1001
• TX power : 2 x 2 W,2*2MIMO
• Throughput : 84Mbps (DL) /23Mbps (UL)
• CE: 128(DL) /128 (UL)
• Size: ~5.2 L
• Weight: ~6.5kg
• Power: POE (Power over Ethernet)
• WiFi: 2*100mw, 802.11n, 2.4Ghz (Optional)
• Wired backhaul : xPON/xDSL,GE/FE interface
• Wireless backhaul : eRelay, MW, WiFi
BTS3803E
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HUAWEI TECHNOLOGIES CO., LTD. Huawei Confidential 13
Background
Two features is introduced at RAN15.0
RNC in Pool Load Sharing
RNC in Pool Node Redundancy
RNC in POOL Topology
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HUAWEI TECHNOLOGIES CO., LTD. Huawei Confidential 14
Load Sharing Introduction
logical RNC 3GPP protocol defined logical entity, identified
by RNC ID.
Physical RNC
Physical RNC is physical equipment ,such as
BSC600 or BSC6910.
Master RNC
RNC network element hosting NodeB of a
logical RNC, Processing OM function for logical
RNC within POOL.
Overflow RNC
RNC network element processes overflowing
traffic from Master RNC for a logical RNC
CN
Iur-p
P_RNC2
Overflow
NodeB
CP
UP
RNC in Pool
IUB
IU
L_RNC1
P_RNC1
Master
Just CP
sharing is
supported
in RAN15.0.
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HUAWEI TECHNOLOGIES CO., LTD. Huawei Confidential 15
NB3
BSC 6900
Iur
BSC 6900
Iur
NB2NB1
BSC 6900
Current
Load Sharing Application Scenario
RNC in Pool Load Sharing
• Smooth capacity expansionNew RNC CP capacity can be shared
with multiple existed BSC6900
NodeB Re-homing from existed
BSC6900 to new BSC6910 is No
needed
NB3
Iur Iur
NB1
6900
Iur-p
Iur-p
Iur-p
BSC 6910
RNC ID 1 RNC ID 2 RNC ID 3
NB2
6900 6900
RAN15.0
SGSNMSC Core
Network
RNC ID 1 RNC ID 2 RNC ID 3
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HUAWEI TECHNOLOGIES CO., LTD. Huawei Confidential 16
Load Sharing Typical Configuration
Load Sharing Specification
Support 3*BSC6900(Master RNC) + 1*BSC6910(Backup RNC).
Support 1*BSC6910 + 1*BSC6910
Only Iur-p interface over IP is supported
RAN15.0 only supports CP sharing , and UP sharing will be supported in future
version.
the NodeB of the logical RNC can only be hosted in the master RNC.
Iur-p
L_RNC1
L_RNC2P_RNC1 P_RNC2
Overflow
RNC
Master
RNC
Master
RNCOverflow
RNC
Iur-p
P_RNC1
Logic RNCI
P_RNC4
Iur-p
P_RNC2
Logic RNC2
Iur-p
P_RNC3
Logic RNC3Master Overflow
Overflow
Overflow
Master
Master
69106900
6900
6900
6910 6910
Configuration Case A Configuration Case B
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Load Sharing Benefit
Benefit
Provide a simpler path to capacity expansion (avoiding Iu/Iur/Iub
integration and NodeB re-homing)
Maximize the efficiency of the capacity purchased in BSC6910
hardware by allowing a single platform to augment multiple
existing RNCs
Two BSC6910 shares with each other to increase the hardware
utilization rate to the traffic break out scenario.
Impact User call establishment delay is increased about 150ms
(Maximum 400ms).
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HUAWEI TECHNOLOGIES CO., LTD. Huawei Confidential 19
Load Sharing Dependence
License
RNC level license at Master RNC is needed.
Feature Dependence
None
Hardware
For BSC6900, the IP interface board GOUc or FG2c is neededfor Iur-p
For BSC6910, the IP interface board GOUc or FG2c or EXOua
is needed for Iur-p
Other
Transmission requirement for Iur-p interface: Time
delay<=10ms Jitter<=5ms Packet loss ratio<=0.01%
CME online is needed which support parameter configuration
synchronization.
CN
Iur-p
BSC6910
Overflow
NodeBCP
UP
Iu
b
Iu
RNCID1
BSC6900
Master
Act ive user num bers
are contro l led by
License
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HUAWEI TECHNOLOGIES CO., LTD. Huawei Confidential 20
Node Redundancy Introduction
Backup RNC: Provide RNC service when Master
RNC outage for a logical RNC
All NodeBs of one logical RNC hosted to
one Master RNC, and secondary hosted
to one Backup RNC
Normally, Master RNC provide service
and Backup RNC in standby status.
when Master RNC breakdown and can’t
be recovered within a short term,
Backup RNC can take over Master RNC
to resume service.
CN
Iur-p
RNC1 RNC2
NodeB
Primary Homed
Secondary Homed
RNC in Pool
IUB
IU
P_RNC1
MasterP_RNC2
Backup
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HUAWEI TECHNOLOGIES CO., LTD. Huawei Confidential 21
Node Redundancy Application Scenario
NB3
BSC 6900
Iur
BSC 6900
Iur
NB2NB1
BSC 6900
Current
NB3
Iur Iur
NB1
6900
Iur-p
Iur-p
Iur-p
BSC 6910
RNC ID 1 RNC ID 2 RNC ID 3
NB2
6900 6900
RAN15.0
SGSNMSC Core
Network
Iub
Iu
Active
Standby
RNC in Pool Node Redundancy
•Improved RAN system availabilityOne BSC6910 work as redundancy for
multi BSC6900 or BSC6910
Eliminates risk of single RNC outage
RNC ID 1 RNC ID 2 RNC ID 3
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HUAWEI TECHNOLOGIES CO., LTD. Huawei Confidential 22
Node Redundancy Typical Configuration Node Redundancy Specification
Support N*BSC6900(Master RNC) + 1*BSC6910(Backup RNC). here,N<=3
Support 1*BSC6910 + 1*BSC6910
About 3 minutes needed for Node Redundancy activation procedure (Online user drops)
Redundancy Trigger
RAN15.0 only supports switch manually, automatic switch will be supported in future version.
Execute MML Command : REL UHOSTRNC at Master RNC Or Execute MML Command : FOC
UHOSTRNC at Backup RNC will trigger NodeB Redundancy procedure.
Iur-p
L_RNC1
L_RNC2P_RNC1 P_RNC2
Backup
RNC
Master
RNC
Master
RNCBackup
RNC
Iur-p
P_RNC1
Logic RNCI
P_RNC4
Iur-p
P_RNC2
Logic RNC2
Iur-p
P_RNC3
Logic RNC3Master Backup
Backup
Backup
Master
Master
69106900
6900
6900
6910 6910
Node Redundancy Scenario for BSC6900 Node Redundancy Scenario for BSC6910
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HUAWEI TECHNOLOGIES CO., LTD. Huawei Confidential 23
Node Redundancy Benefit
Benefit
Improved RAN system availability. Eliminates risk of single RNC
outage.
Also, the feature could be used at RNC software upgrade
procedure. It will decrease service interrupt duration.
Network Impact
Backup RNC need add backup Iub/Iur/Iu interface configuration
Core Network need add backup Iu interface route
Neighbor RNC need add backup Iur interface route
NodeB need add dual-homing Iub interface configuration
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HUAWEI TECHNOLOGIES CO., LTD. Huawei Confidential 24
Node Redundancy Dependence
License
Node Redundancy software license ( RNC level ) is
needed,the unit is NodeB number.
Feature Dependence
None
Hardware
For BSC6900, the IP interface board GOUc or FG2c
is needed for Iur-p
For BSC6910, the IP interface board GOUc or FG2c
or EXOua is needed for Iur-p
3900 series NodeB is required
Other
CME online is needed which support parameter
configuration synchronization. Only Iur-p interface over IP is supported
For the dual-homing NodeB the two transmission type
should be same for the two Iub interface.
CN
Iur-p
NodeB
Iu
BSC6900
Master
BSC6910
Backup
RNCID1
Iub
Number of Redundant
NodeBs are controlled
by License
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DB-HSDPA Introduction
Description
DB-HSDPA allow that UE is able to setup HS-PDSCH connection on two
carriers of different bands and transmits data on two carriers simultaneously
At uplink, UE only transmit data at one carrier, i.e. Primer Carrier
pplication Scenario
Urban area or city hotspot where multi carrier available or dual-band
available, such as U900+U2100 co-sites area
Carrier on Band A
Carrier on Band B
Primary Carrier
Secondary Carrier
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HUAWEI TECHNOLOGIES CO., LTD. Huawei Confidential 28
DB-HSDPA Introduction (cont.)
Compared with DC-HSDPA
The technology of DB-HSDPA is the same as DC-HSDPA except the
frequencies of the two cells. So, the function such as channel
configuration, mobility is same with DC-HSPDA.
The frequencies of DB-HSDPA cell group comes from different bands but
the frequencies of DC-HSDPA cell group should be the same band and
the neighbor frequencies.
Band combination supported
Band I+ Band VIII (2100+900)
Band II+ Band IV (1900+AWS)
Band I+ Band V (2100+850)
Band II+ Band V (1900+850)
Page28
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HUAWEI TECHNOLOGIES CO., LTD. Huawei Confidential 29
DB-HSDPA Benefit
Peak throughput
DB-HSDPA 42Mbps
DB-HSDPA+MIMO 84Mbit/s
User experience
Maximum 80% UE average rate gain for burst
traffic compared with SC-HSDPA user.
Network Impact
Compared to the SC-HSDPA user, DB-HSDPA
should feedback CQIs of two frequencies
instead of one CQI of one frequency in uplink.
Therefore, the upload would be increased
slightly in case of high penetration of DB-HSDPA users. e.g. UL load is increased about
10% in case of 50 DB-HSDPA users in a cell.
Page29
D B-H SD PA Perform a nce G a in (2.1G H z+900M H z, Bu rst Tra ffic) ,PA 3
0
2
4
6
8
10
12
0 5 10 15 20
User N um b er/sector
A
v e
r a
g
e
B u
r s
t
R
a
t e
( M
b
p
s )
D B-H SD PA +64Q A M
2.1G H z-H SD PA +64Q A M
900M H z-H SD PA +64Q A M
80%
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HUAWEI TECHNOLOGIES CO., LTD. Huawei Confidential 30
DB-HSDPA Dependence
Feature Dependence
WRFD-010610 HSDPA Introduction Package
WRFD-010685 Downlink Enhanced L2
WRFD-010629 DL 16QAM Modulation
Hardware
BTS3900/DBS3900,WBBPb,WBBPd or WBBPf board is needed
BTS3812E/BTS3812AE/BTS3812A is not supported
DBS3800, EBBC or EBBCd board is needed
UE
HSDPA Category is 21 or higher , and DB-HSDPA capability is
needed
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Flexible DC/DB Introduction
Description
Multi carriers are combination as one carrier group, any carrier could be allocated dynamically to
establish DC-HSPA or DB-HSDPA service
Up to 4 carriers supported at one carrier pool, which belong to one NodeB
DC-HSDPA is used for any two carriers; DB-HSDPA is used for any two carrier in different band
One Carrier could belong multi DC-HSDPA or DB-HSDPA or DC-HSDPA+MIMO or DB-HSDPA+MIMO or
4C-HSDPA+MIMOcell group simultaneously
Application Scenario
Urban area or city hotspot where multi carrier available or dual-band available
F2(Band A)
F3(Band A)
F3(Band B)
DB
DB
DC
NodeB
Flexible HSDPA Dual-Band
F1(Band A)
F2(Band A)
F3(Band A)
DC
DC
NodeB
Flexible HSDPA Dual-Cell
DC
F1(Band A)
DC
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HUAWEI TECHNOLOGIES CO., LTD. Huawei Confidential 33
Flexible DC/DB Introduction (cont.)
Difference with traditional DC-HSDPA/DB-HSDPA, flexible DC/DB allows that
carrier cells are dynamically allocate to user.
Flexible DC/DB enable easy configuration for DC-HSDPA/DB-HSDPA
It not need configure each cell pair for DC-HSDPA/DB-HSDPA.
All cells used by DC-HSDPA/DB-HSDPA are pushed to carrier pool(multi-cell group).
RNC will dynamically select carrier and HSPA+ technology for each multi carriercapability user.
With Flexible DC/DB,RNC will select secondary carrier for DC/DB-HSDPA
users from multi candidate carriers.
Scheduler
MAC-ehs HSDPA scheduler supports joint schedule DC-HSDPA/DB-HSDPA users
on multi carriers. Scheduler also supports mixed SC-HSDPA/DC-HSDPA/DB-HSDPA user scenario.
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Flexible DC/DB Benefit
Benefit
Due to higher network radio resource utilization, UE average burst
rate will improve about 5%~20% than fixed DC/DB by simulation.
The gain will variation according to live network carriers load
status.
Network impact
Refer to DC-HSDPA and DB-HSDPA
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Flexible DC/DB Dependence
Feature Dependence
WRFD-150209 DB-HSDPA (if one cell in the group operates at a different frequency band
from other cells, all cells in the group must support DB-HSDPA)
WRFD-010696 DC-HSDPA (is needed for all cells operated at the same frequency band)
Hardware
BTS3900/DBS3900 1) WBBPb,WBBPd or WBBPf board is needed
BTS3812E/BTS3812AE/BTS3812A
1)For intra-band 3Carriers, EBBI,EDLP+EULP(d) board is needed
2)Inter-band 3Carriers and 4Carriers is not supported
DBS3800
1)For inter-band or intra-band 3Carriers, EBBC or EBBCd board is needed
2)4Carriers is not supported
UE
HSDPA Category is 21 or higher.
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HSPA+ Evolution
DB-HSDPA
Flexible DC/DB-HSDPA
4C-HSDPA (3C-HSDPA included)
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21M
(64QAM)
42M(DC)
84M
(4C/DC+MIMO)
168M
(4C+MIMO)
2012 2013 2014
HSPA+ 21M
HSPA+ 84M
HSPA+ 42M
HSPA+ 168M
2015 2016~
Smooth Evolution Proposal for
Commercial Network
21 28 4284
168
336
0
50
100
150
200
250
300
350
400
R6 R7 R8 R9 R10 R11
64QAM2X2MIMO
DC+64QAM
Or 64QAM+MIMO
DC+64QAM+
MIMO
4C+64QAM+
MIMO
4C+64QAM+4x
4MIMO
3Gpp Evolution
HSPA+ Evolution Roadmap
Mbps
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4C-HSDPA Introduction
Description
4C-HSDPA Feature (and 4C-HSDPA+MIMO) allow Maximum 4 carriers transmit downlink data to one
UE simultaneously
4C-HSDPA Feature includes 4C-HSDPA and 3C-HSDPA
4C-HSDPA+MIMO Feature include 4C-HSDPA+MIMO and 3C-HSDPA+MIMO
At one Band, only 3C-HSDPA or 3C-HSDPA+MIMO is supported according to 3Gpp R10
Application Scenario
Urban area or city hotspot where multi carrier available
NodeB
F 1
F 2
UE
BAND A
DL:DPCH/F-DPCH
UL:DCCH
HS-DSCH
F 3
F 4Secondary Carrier 3rd
HS-DSCH
HS-DSCH
HS-DSCH
Secondary Carrier 2nd
Secondary Carrier 1st
Primary Carrier
BAND B
UL:HS-DPCCH( CQI,HARQ ACK/NAKC for all carrier)
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4C-HSDPA Introduction (cont.)
Support band combination
Two carriers in Band I (2.1GHz)+ one carrier in Band VIII (900MHz)
Three carriers in Band I (2.1GHz)+ one carrier in Band VIII (900MHz)
One carrier in Band II(1900MHz)+ two carriers Band IV (AWS)
Two carrier in Band II(1900MHz)+ one carriers Band IV (AWS)
Two carrier in Band II(1900MHz)+ two carriers Band IV (AWS)
One carrier in Band I(2.1GHz)+ two carriers in Band V (850MHz)
Two carrier in Band I(2.1GHz)+ one carriers in Band V (850MHz)
Two carrier in Band I(2.1GHz)+ two carriers in Band V (850MHz)
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4C-HSDPA Benefit
Peak throughput 3C-HSDPA 63Mbps
4C-HSDPA 84Mbps
3C-HSDPA+MIMO 126Mbps
4C-HSDPA+MIMO 168Mbps
0
20
40
60
80
100
120
140
160
180
1c 2c 3c 4c
w/t MIMO
w/o MIMO
0%
20%
40%
60%
80%
100%
120%
2 UE per sector4 UE per sector8 UE per sector 16 UE per
sector
U s e r T h t
G a i n
4C-HSDPA vs DC-HSDPA
User Experience
In case of dense urban, small file download such asMP3 download, 4C-HSDPA user throughput will
improve 30%~80% compared with DC-HSDPA
Network Impact:
Cell uplink load (RTWP) will increased slightly in
case of high penetration of DB-HSDPA users due to 4C-
HSDPA uplink HS-DPCCH channel need more
power consumption
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4C-HSDPA Dependence
Features Dependence
WRFD-010683 Downlink 64 QAM
WRFD-150209 DB-HSDPA ( is not needed while intra-band 3Carriers scenario)
WRFD-010696 DC-HSDPA (is needed for all cells operated at the same frequency band) ??
WRFD-150208 Flexible DC/DB-HSDPA
Hardware
BTS3900/DBS3900
1) For 3Carriers, WBBPb,WBBPd or WBBPf board is needed
2) For 4Carriers, WBBPd or WBBPf board is needed
BTS3812E/BTS3812AE/BTS3812A
1) For intra-band 3Carriers, EBBI,EDLP+EULP(d) board is needed
2) Inter-band 3Carriers and 4Carriers is not supported
DBS3800 1) For inter-band or intra-band 3Carriers, EBBC or EBBCd board is needed
2) 4Carriers is not supported
UE
HSDPA Category 29, 30, 31, or 32
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Capacity
Turbo IC
HSUPA Time Division Scheduling
Load Based Dynamic Adjustment of PCPICH Power
DPCH Maximum Power Restriction DPCH Pilot Power Adjustment
Uplink Enhanced CELL_FACH
Layered Paging in Idle Mode
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Background
UMTS Cell uplink capacity is limited by
the multi-access interference (MAI)
from UEs in and interference outside
the system.
Interference cancellation (IC) reduces
or eliminates interference between UEsto effectively improve UE receive
performance, which is an effective
method to improve uplink capacity.
The higher UE data rateresults in higher interference to
other UEs.
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Turbo IC Dependence
Feature Dependence
WRFD-01061403 HSUPA 2ms TTI
WRFD-010691 HSUPA UL Interference Cancellation
Hardware
Only BTS3900/DBS3900 is supported, and WBBPf board is
needed
UE
HSUPA Category 6 or higher
License
Software license (cell level ) is needed
CapacityHardware& Platform Network SynergyHSPA+
Experience OAM
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Capacity
Turbo IC
HSUPA Time Division Scheduling
Load Based Dynamic Adjustment of PCPICH Power
DPCH Maximum Power Restriction DPCH Pilot Power Adjustment
Layered Paging in Idle Mode
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Background
WCDMA is a self-interferingsystem. The higher uplink
data rate , the greater uplink
interference
At RAN15.0, HSUPA Time
Division Scheduling is
introduced which avoid and
decrease system interfering
User1
User2
User3
User4
User5
General scheduling mode: code division
Time Division Scheduling mode:
User transmitting data in different time, cell
interference be reduced
HSUPA User Scheduling
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HSUPA Time Division Scheduling Introduction
Description
Timing alignment When HSUPA UEs set up the first radio link (RL), set the Default DPCH Offset Value for
time alignment to ensure no data transmission time overlap between different processes
TD User selection
Only 2ms HSUPA user will be scheduled with time division mode
SRB over HSUPA is required soft handover or softer handover user will not selected due to timing alignment issue
DPCH,4
DPCH,3
DPCH,2
Time2ms
P-CCPCH
E-DPDCH 1
E-DPDCH 2
E-DPDCH 3
E-DPDCH 4
DPCH,4
CD Scheduling Timi ng
DPCH,4
Time2ms
P-CCPCH
E-DPDCH 1
E-DPDCH 2
E-DPDCH 3
E-DPDCH 4
TD Scheduling Timi ng
UE1 Active Process
UE2 Active Process
UE3 Active Process
UE4 Active Process
Deactive Process
Figure 2: Time alignment of HSUPA user
HSUPA Ti Di i i S h d li
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HSUPA Time Division Scheduling
Introduction (cont.)
TD user HARQ allocation
Only one user is ensured to transmit high-speed data at one 2ms TTI and Up to 8
users supported simultaneously
If a UE gives up time division, the released process is allocated to the UE with the
lowest rate.
If a new UE requires scheduling, the UE with the highest rate satisfaction will release
partial HARQ to the new UE.
If there is no change on the time division UEs, periodically adjust the processes
between UEs to ensure fairness and differentiation between UEs.
Application Scenario
Dense urban or hotspot area which have high percentage of HSUPA 2 ms users and
data transmission requirement
Single Antenna Scenario is recommended, such as indoor system
High mobility is NOT recommended, such as highway and high-speed train
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Benefit
Benefit:
Uplink cell throughput increase about 10%~90% without
IC in case of single Rx Antenna and 2~8 Time Division
users by simulation
Uplink cell throughput increased about 5%~15% with
IC in case of 2 Rx Antenna and 2~8 Time Division users
by simulation
live network gain depended on penetration of 2ms
HSUPA UE and enough traffic volume.
Impact
Because that Time Division User should keep DL
DPCCH timing alignment , then PA PAR will increasedwhich impact cell downlink throughput
HSUPA Ti Di i i S h d li
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HSUPA Time Division Scheduling
Dependence
Feature Dependence
WRFD-01061403 HSUPA 2ms TTI
WRFD-010636 SRB Over HSUPA
Hardware
Only BTS3900/DBS3900 is supported (DBS3902E excluded), and
WBBPf board is needed
multiple RRUs share one cell scenario is NOT supported
UE
HSUPA Category 6 or higher
License
Software license (cell level) is needed
CapacityHardware& Platform Network SynergyHSPA+
Experience OAM
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Capacity
Turbo IC
HSUPA Time Division Scheduling
Load Based Dynamic Adjustment of PCPICH Power
DPCH Maximum Power Restriction DPCH Pilot Power Adjustment
Layered Paging in Idle Mode
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Introduction
Description
If cell Non-HSPA consumption ratio is higher than configured active
threshold, degrade PCPCIH power step by step
On-line user max DL power not impacted during the adjustment procedure.
i.e. keep the default value
If cell Non-HSPA consumption ratio is less than configured restore
threshold, upgrade PCPCIH power step by step
The PCPICH adjustment range , period and step is configured.
Application Scenario
Hotspot cells at Multi-Carrier network. The carrier which supplycontinuous coverage is not suggested to active this feature, the carrier
which supply traffic is suggested to active it.
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Benefit
Benefit
Decrease CCH power consumption and shrink cell coverage range, then
decrease cell Non-HSPA power consumption
Assumed default PCPICH power ratio is 10% and PCPICH degrade threshold
is 3dB. The cell Non-HSPA power consumption will decrease 10%~15% at
busy hour of hotspot cells which has amount of HSPA users
Impact
Cell edge handover attempts and call drop maybe increased due to shrink
coverage
For multi-carriers network, the blind handover between different carriers due to
shrink coverage
Dependence Cell level license at RNC is needed
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Background
Description:
As smart-phones penetrate quickly, more and more UEs will keep on line but
transmit nothing which wastes cell DL DPCH power for HSDPA users
This phenomena is shown as the figure. It means that most of cell power is
used by DL DPCH channel, and cell downlink throughput impacted due to
power limitation.
D L
T x P o w e r
User Num
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Introduction Description
Only HSDPA user is selected
If cell Non-HSPA power higher than configured active threshold If No SRB transmission at DL DPCH of HSPA user , decrease DL DPCH max power value
If SRB transmission detected at DL DPCH of HSPA user ,restore DL DPCH max power value
The adjustment period is one TTI (i.e. 40ms)
No adjustment action at the TTI edge (i.e. last 10ms of TTI) to avoid DL RL failure
If cell Non-HSPA power less than configured restore threshold
Restore DL DPCH max power value
Application Scenario this feature is recommended when both Non-HSPA power consumption ratio and PS
user ratio are high.
Lab Test Result with 40 ftp download users distributed at cell edge
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Benefit
Benefit
The average cell Non-HSPA power consumption is expected to decrease
by 5%~15% at busy hours of hotspot cell. The gain is variable accordingto cell HSDPA user number and location distribution of live network.
Impact
Cell HSDPA call drop ratio maybe increased due to cell edge user call
drop possibility increased
Dependence Cell level license at NodeB is needed
If WRFD-010652 SRB over HSDPA activated, this feature will not be used
if UE support SRB over HSDPA; this feature will still be used for UE which
not support SRB over HSDPA.
Lab Test Result with 40 ftp download users distributed at cell edge
CapacityHardware& Platform HSPA+ Experience OAMNetwork Synergy
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Capacity
Turbo IC
HSUPA Time Division Scheduling
Load Based Dynamic Adjustment of PCPICH Power
DPCH Maximum Power Restriction
DPCH Pilot Power Adjustment
Layered Paging in Idle Mode
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Introduction
Description
Decrease DPCCH Pilot PO and Pilot bit number when cell Non-HSDPA
power ratio is high than configured threshold
Application Scenario
this feature is recommended when both Non-HSPA power consumption
ratio and PS user ratio are high.
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Benefit Benefit
When this feature is activated and most UEs setup services over HSDPA,the average power consumed by every UE’s DL DPCH is expected to
decrease by 5%~20%
Impact
Cell drop ratio maybe increased due to Pilot info impact UE SIR
estimation.
Dependence
None
CapacityHardware& Platform Network SynergyHSPA+
Experience OAM
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Capacity
Turbo IC
HSUPA Time Division Scheduling
Load Based Dynamic Adjustment of PCPICH Power
DPCH Maximum Power Restriction
DPCH Pilot Power Adjustment
Layered Paging in Idle Mode
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Background
The penetration of Smartphone is increasing continuously ,
more PS paging is happened at live network. It means that
PCH load is increasing rapidly, and high PCH load will cause
high discard!
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0.00%
1.00%
2.00%
3.00%
4.00%
5.00%
6.00%
7.00%
8.00%
9.00%
0 .0 0 % 1 0 .0 0 % 2 0 .0 0 % 3 0 .0 0 % 4 0 .0 0 % 5 0 .0 0 % 6 0 .0 0 % 7 0 .0 0 % 8 0 .0 0 %
Discard ratio
PCH utilizationLive network PS paging stat.
PCH utilization vs Paging Discard Ratio
Layered Paging in Idle Mode Introduction
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Layered Paging in Idle Mode Introduction
Description
Layer1: Paging is sent to the latest cell and all the intra and inter neighboring cells;
Layer2: if no response from UE before the timer (DRX cycle+360ms) expires, the
paging will be sent again in whole LA or RA area.
Application Scenario
It is recommended if PCH congestion happened.
it is NOT recommended at high mobility scenario due to high Layer 1 paging failure
will happened. Such as highway, metro.
Page65
Step1: cell
levelpaging
If fail , then:
Step2: LA/RA level paging
Without “Layered
Paging”
With “Layered Paging”
No paging
response
Layered Paging in Idle Mode
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Introduction(cont.)
Description
CS and PS switch independently
Control switches are designed separately for real time service
(Conversational and Streaming) and non real time service (Interactive,
Background and SMS);
Flexible cell configuration A black list of cells can be used to avoid this feature to be applied for these
cells (usually with high mobility).
UE ID info management
A UE list is maintained in RNC to record the UE ID(IMSI,TMSI)and the
latest cell ID where the UE turns into idle mode.
If there’s no interaction between UE and RNC before the timer
(UsrLocInfoAgingTmr, 30 minutes by default) expires since it turns into idle
mode, the UE will be removed from the UE list.
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Layered Paging in Idle Mode Benefit
Benefit :
Reduce the amount of Paging messages for idle mode UEs, which will reduce the
PCH load.
Assumption
Total cell number in the LA/RA: 500
Average neighboring cell number: 64
Success ratio of layer 1 paging: 80% Success ratio of layer 2 paging : 100% (only one time Layer2 paging)
Reduced paging amount ratio
1 – (64 * 80% + (64 + 500) * 20%) / 500 = 67.2%
Network Impact
Call access delay is increased if layer 1 paging failure. The delay is ~1s if the DRX
cycle is 640ms.
License
RNC level license is required
Page67
CapacityHardware& Platform Network SynergyHSPA+
Experience OAM
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Network Synergy
UMTS-LTE Inter-RAT Cooperation
HetNet Co-Carrier Coordination Phase 1
U900-U2100 Multiband Direct Retry Based on UE Location
MOCN Enhancement
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LTE to UMTS SRVCC with PS Handover
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UL dual-mode UE
with both voice &
data
LTE
UMTS
VoIP & Data
UMTS
Voice & Data
Benefit: With PS handover, the
interruption of PS service
decreased and bring the end
user a better experience.
Dependence
UE should support SRVCC
SRVCC:Single Radio Voice Call Continuity
CapacityHardware& Platform Network SynergyHSPA+
Experience OAM
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Network Synergy
UMTS-LTE Inter-RAT Cooperation
HetNet Macro & Micro Co-carrier Uplink Interference Control
U900-U2100 Multiband Direct Retry Based on UE Location
MOCN Enhancement
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• Co-Channel Challenges on Uplink• The gap on pilot power between Macro and Micro leads to imbalance on DL/UL at Microcell edge area. (Ie.
Macro Tx Pwr= 20 W, Micro Txpwr = 5W, the GAP on DL is ~6 dB)
At Non-SHO area:
Victim: Microcell
Impact: Substantial RTWP rise, UL blocking as the worse
case
Cause: UEs at Macro cell edge transmitting high power,
perceived by Microcell as huge noise
At SHO area:
Victim: Macro cell
Impact: Poor UL radio link quality perceived by Macro
cell, causing degraded HSPA T-Put
Cause: UE TxPwr is reduced as a result of Power control
dominated by the Microcell
UL boundary
DL boundary
- Because of pilot power difference, Micro’s DL
coverage is much less that of Macro’s
- However, UL coverage is basically the same
between Micro and Macro
Background
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Introduction
Description
HetNet Macro & Micro Co-carrier Uplink Interference Control included 3 sub-
features
Micro Cell Dynamic Rx Sensitivity Control
Macro & Micro Joint Inter-frequency Redirection
Macro & Micro Joint Inter-frequency Handover.
Application Scenarios
Urban traffic hot-spot where Macro and Micro cell use the same frequency
Typical network topology
As following figure
Macro
Macro
Problematic area
MicroMicroF1
F2
Problematic area
Macro
Macro
F2 can be configured
as F1's neighboring
cell for blind
handovers.
Introduction(cont.)
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without desensitization
UL boundary DL boundary
Gap between the UL andDL boundaries:
Problematic areas
Step2: take RRC Re-direction and IFHO, make the users at the problematic
area move to other Macro frequenciesStep3:if there are still users in the problematic area after previous
step, perform full value Desensitization
Step1:Perform partially desensitization ( ie. half desensitisation value) first, to avoid the possible UL blocking by the serve UL interference. This step
can be disabled by parameter
If inter-frequency
handover fails
Cancel the totaldesensitization, and fall
back to the partial
desensitization after theUEs in the problematic
areas left.
When UE in the
problematic areas andtry to access or execute
handover, or modify
service, go to step 2
After the partial
desensitization: UL
boundary
DL boundary
Gap between the UL and DL boundaries:problematic areas
Partial desensitizationintensity
Before the partial
desensitization: ULboundary
Max. gap between the UL and DL boundaries
3-Step Approach to Mitigate Co-channel Impact
( )
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• How to identify users at ON-SHO area?- when there is 1A’ event reporting
• Self defined 1A’ event: RNC sends Meas. Control with a new ID# for this self defined 1A’ event and waits for UE to report
• Only Macro with Co-channel Micro neighbor will send 1A’ Meas. Control
• 1A’ event can be considered as earlier trigger for entering SHO area (but no SHO as the consequence) , therefore 1A’ threshold is
typically higher than that of 1A• After 1A’ event triggered, there will be periodic 1A’ event reporting until a timer expiry
• How to identify users at SHO area?
• Based on the RL(s) in the active set: when there are Macro & Micro RLs in the active set and the best cell is Macro cell
• From Macro to Micro, 1A’ event is used as the sign of entering the problematic area, 1D event as exiting; From Micro to
Macro, 1D as the entering, stop 1A’ report as the exiting
Non-SHO area SHO area
How to identify users in problematic area?
Introduction(cont.)
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RRC Redirection and Inter-frequency Handover
To reduce the UE numbers in
problematic area
RRC Redirection Macro & Micro Joint Inter-frequencyHandover
Is the UE in a
problematic area?
RRCRedirection Noaction
Yes NoIs the UE in a
problematic area?
BlindIFHO
No action
Yes No
The target cell for the inter-frequency blind
handover and redirection must meet allfollowing conditions:
1. The target cell is a macro cell.
2. The target cell is in neither the LDR state nor
the OLC state.
3. The target cell is an inter-frequency neighboring
cell for blind handover.
4. The target cell supports HSDPA or HSUPA.
5. The UE supports the frequency of the target
cell.
6. The target cell has no intra-frequency
neighboring micro cells (Indicated by MicroCellFlag)
For online H users without
CS RAB over DCH For Idle User accessrequest for PS service
Featrue1: Macro & Micro Joint Inter-frequency
Redirection
Featrue2: Macro & Micro Joint Inter-frequency
Handover
Introduction(cont.)
Introduction(cont.)
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Triggering Desensitization Implementation
Update the reference background noise and maximum
target RTWP for HSUPA scheduling on the NodeBbased on the new desensitization value:
Maximum target RTWP = Reference background noise +TargetRoT
State 1: No UE in the
problematic areas: Partial
desensitization value
State 2: UEs are in the
problematic areas. Full
desensitization value
Event-triggered:
Inter-Freq HO failure or any UE is detected in theproblematic area
Periodic detection:The full desensitization timer expires and no UE is
detected in problematic area
Desensitization value configuration
The NodeB configures desensitization value on
RRUs according to the private information element
DesensPower .
Microcell Dynamic Rx Sensitivity Control
Partial desensitizationvalue
Full desensitization
value
MaxGAP Total2PartDesense
Diff
MaxGAP
MaxGAP = Difference in the pilot power -Difference in the
receiving capability + Difference in the background
noise
( )
Benefit & Impact
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Benefit & Impact
Impact to be observed after Microcells implementation
The soft handover amount increases as a result of cells boundaries increase due to Microcell deployment
The Hard handover amount increase due to Feature enabled
When microcell is located as the weak coverage area of Macrocell, call drop rate, access successful rate
and other KPI will be improved due to coverage enhancement by Microcell
When Microcell is located at the hot spot for traffic offload, the overall KPI of the network basically keeps
unchanged or improves slightly due to traffic offload by Micarocell
Case #1: Microcell is implemented in RAN15 with Co-carrier, with 3 features of Co-carrier coordination enabled
F1(Macro) + F1(Micro) + F2 (Macro), 3 features work jointly - RAN15.0
Vs.
F1(Macro) + F2 (Macro)
Co-carrier Networking Case Analysis
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3G lowband cell
3G highband cellMulti-bands network:
Background
Low band cell (U900/U850) has better coverage performance (stronger
penetration capabilities and lower path loss).
High band cell (U2100/U1800) can provide more capacity and improve the
user experience. Location Based Multi-band Direct Retry Feature is introduced at RAN15.0
to support U900/U850 & U2100/U1800 Synergy
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Main ideas:
Low band cell serves mainly the users at cell edge.
High band cell serves mainly the users at cell centre.
Introduction
Note: This feature is only applied to HSDPA users.
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Note: The RSCP measurement report period is 250ms.
Introduction (cont.)
Description
Pathloss and target cell load
status should be checked
when new RAB assignment
request received.
Pathloss is calculated form
cell RSCP measurement
RSCP measurement should
be triggered only the feature
switch ON
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Dependence
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Dependence
Feature Dependence
WRFD-020400 DRD Introduction Package
WRFD-020110 Multi Frequency Band Networking Management
WRFD-010610 HSDPA Introduction Package
Hardware: None
UE
The UEs must support both high- and low-frequency bands, such as
U2100 and U900.
License
Cell level license at RNC is needed
Network Synergy
CapacityHardware& Platform Network SynergyHSPA+
Experience OAM
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Network Synergy
UMTS-LTE Inter-RAT Cooperation
HetNet Co-Carrier Coordination Phase 1
U900-U2100 Multiband Direct Retry Based on UE Location
MOCN Enhancement
Background
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Background MOCN (multiple operator Core
network) is defined at 3Gpp which allow
multi operator sharing radio equipment
and resource
MOCN should save operator’s
investigation and improve resource
utilization
Two new feature about MOCN
enhancement is introduced at RAN15.0
MOCN Independent Iub Transmission
Resource Allocation MOCN Independent CE Resource
Allocation
MSC
SGSN
RNC
NodeB
Cell
GGSN, HLR& apps
MOCN
Shared NEs
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Benefit
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Benefit
Benefit
This feature prevents one operator from occupying excess Iub
user-plane transmission resources in MOCN scenarios and
ensures that operators retain independent Iub user-plane
transmission resources. Impact
Each operator’s MAX available Iub bandwidth will reduced, and
total resource utilization efficiency maybe reduced
If one operator’s predefined Iub bandwidth less than the traffic
required, the KPI (RRC/RAB success rate ,HSPA throughput )will
be degraded.
Dependence
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Dependence
Feature Dependency
WRFD-021311 MOCN Introduction Package is needed.
This feature cannot be used with WRFD-02130501 Dedicated Iub
Transmission Control or WRFD-140208 Iub Transmission
Resource Pool in RNC simultaneously. Hardware
This feature does not support BSC6910 IP transmission.
UE
None
License
NodeB level license is needed
MOCN Independent CE Resource Allocation
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MOCN Independent CE Resource Allocation Description
M2000 allocate UL/DL CE license group for each operator;
Configure UL/DL CE license private group and common group for NodeB in M2000
Private group CE only can be used by the operator;
Common group CE can be shared between operators, it can be set to zero.
RNC indicate the user’s serving operator to NodeB
NodeB consume different group CE according the user’s serving operator.
private group CE will be first consumed;
common group can be used when the private group is used up;
first come first serve in common group.
RNC execute the action to release from congestion for each operator independently.
If one operator’s CE can be used is insufficiency, RNC will choose the operator’s users to do
BE rate reduction or TTI adjustment from 2ms to 10ms.Operator
B Operator
COperator
D
Operator
A
Common
Group
BBU Resource Allocation:
Private Group + Shared Group
Benefit
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Benefit
Benefit
This feature prevents one operator from occupying excess CE
resources in MOCN scenarios. This ensures that each operator
retains independent CE resources.
Guarantee each Operator’s CE proportion by Private Group,
Optimize CE resource utilization efficiency by Shared Group
Impact
If one operator’s predefined CE license less than the traffic
required, the KPI (RRC/RAB success rate ,HSPA throughput )will
be worse.
Dependence
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Dependence
Feature
WRFD-021311 MOCN Introduction Package is needed.
This feature cannot be used with WRFD-021304 RAN Sharing
Introduction Package simultaneously.
Hardware
DBS3900/BTS3900 with WBBPb,WBBPd or WBBPf board
UE
None
License
Software license (cell level) is needed
Experience
CapacityHardware& Platform Network SynergyHSPA+
Experience OAM
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Experience
Platinum user prioritizing
Differentiated Service Based on Resource Reservation
Fast customized QoE optimization
Background
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Background
During Sport Game (e.g ATP match) or important festival (e.g Hajj), the traffic
will increase sharply and serious network’s congestion will happen, and all user
experience will deteriorate severely.
Platinum user prioritizing feature will improve valuable customer’s (such as VIP
group) experience in such congestion scenarios.
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Introduction
Platinum User identification
③Platinum User access
prioritizing both at RRC and RAB
phase
④Platinum User quality
Prioritizing at service holding
phase both for CS and PS service
Application Scenario: Hot Event
Scenario. Such as Sport Game or
festival
Introduction (cont )
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Introduction (cont.)
Platinum User Configuration Platinum user IMSI list (at most 1000 users per RNC) should be configured by operator with administrator right , without
CN configuration changed.
Platinum User Identification
RNC will save and maintain Platinum Users’ IMSI-TMSI mapping list
If Initial UE identity IE in RRC connection request is TMSI or IMSI, RNC will distinguish Platinum User by TMSI-IMSI
table.
Whatever CS or PS service is initiated, TMSI will be used preferentially according 25.331.
RNC will get new TMSI from NAS message and refresh IMSI-TMSI mapping list.
Platinum user Access Prioritizing
Platinum user will preempt other user’s resource both at RRC and RAB establishment phase
In flow control , RRC Connection Request of platinum user is with same priority as conversational service .
Platinum User Voice Quality
Platinum user with AMR service will get more downlink power at weak coverage
Platinum User preferential Scheduling
Platinum user with PS service will get highest scheduling weight. it is independent of the Gold/Sliver/Copper user
configuration.
Gold/Sliver/Copper differentiation is only applied at scheduling phase, but Platinum user prioritizing is applied both ataccess and scheduling phase
Benefit & Impact
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Benefit & Impact
Benefit
Platinum user will get higher access success rate than other users
at cell congestion scenario.
Platinum user CS voice quality is improved especially at weak
coverage condition.
Higher PS throughput will be supplied for Platinum user.
Impact
Cell Call drop rate in busy hours will increase due to Platinum
user’s resource preemption.
Dependence
RNC level License is required
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Experience
CapacityHardware& Platform Network SynergyHSPA+
Experience OAM
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Experience
Platinum user prioritizing
Differentiated Service Based on Resource Reservation
Fast customized QoE optimization
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Introduction (cont.)
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Introduction (cont.)
Description Cell HSDPA Power Quota is means that the percentage of cell total
Tx Power
Cell HSDPA Power Quota of each group only take effect in case of
cell power congestion
For example The HSDPA Power Quota is Group Gold 100%, Group Silver 70%, Group
Copper 10%
When cell power is NOT congested, the Group Copper users could use
more power as required. I.e. Quota will not limit the power allocation.
Only Cell power congestion happened, the Group Copper user could use
10% Quota maximally. i.e. Quota is effect.
Benefit
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Benefit
Benefit Limit low valuable HSDPA user power consumption and supply more
power resource to high valuable HSDPA users at cell power
congestion scenario.
Impact
The GBR throughput of users at low valuable group is maybe not beguaranteed due to multi users sharing the limited Quota at cell power
congestion scenario. Even, call drop risk is increased for users at low
valuable group.
Dependence
RNC level license is needed This feature could not activated simultaneously with WRFD-030005
ICR downlink resource allocation or WRFD-140223 MOCN cell
resource allocation.
Experience
CapacityHardware& Platform Network SynergyHSPA+
Experience OAM
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Experience
Platinum user prioritizing
Differentiated Service Based on Resource Reservation
Fast customized QoE optimization
Background
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Background
As the investigation of 3rd party, Different application distribution at different
area. So single QoS strategy can’t fit multiplex custom requirement. At RAN15.0, customized QoS management platform is introduced to support
colorful and finer QoS management capability for different operator.
Top Applications list - North America, Mobile Access Top Applications list - Asia-Pacific, Mobile Access
Introduction
SmartCare Professional Serviceis required
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NodeB RNC
M2000
NIU
1
Optimization Request
2
3
SGSN/GGSN
1
2
3
NIU board equipped(Hardware)
APP charact. Database
(software)
SmartCare Professional
Service
Fast optimization solution
w/o RAN release upgrade
Target Applicationexperience improved
quickly
Dependence
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OAM
CapacityHardware& Platform Network SynergyHSPA+
Experience OAM
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OAM
Capacity Visualization Platform
EBC (Event Based Counter)
Capacity Visualization Platform
SmartView Professional
Service is required
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Cell3:Hot spot
Cell2:
Dual-band
load
unbalance
Cell1:
Neighbor Cells outage
Cell Capacity Map
Capacity
Overview
BottleneckIdentification
In-depth
Analysis
PRS
License
Utility
Iu
Utility
Board
CPU Load
RNC1
RNC Capacity Alarm Map
Visualization by GISVisualization by table
NodeB
RNC
RNC
LicenseUtility
IuUtility
IurUtility
BoardCPU Load
RNC1
RNC2
…
Comprehensive and clear capacity
dashboard by multiple dimensions
DependencePRS server
SmartView Prof. Service
EBC (Event Based Counter)
One Feature of M2000
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Service DimensionUser A
Event
Counter 1
EventCounter 2
…….
…….
Event
Counter 3
EventCounter 4
…….
Event
Counter 6
EventCounter 7
Benefit
Customized counter definition tomeet different customer’s need
Flexible counter amount, not
dependant on software upgrade
Simplifies service evaluation and
trouble shooting in the radio
network
User B
User C
SAU Board RNC
Feature Dimension
Cause Dimension
M2000
Dependence
SAU Board
System Capability Improvement
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y p y p
Network KPI
Experience
HSPA
OAM
Accessibility Enhancement
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Description
Traditional programs:Message of
RRC Connection Setup is sent over the
FACH with fixed power during the RRC
setup Stage
New programs: Message of RRC
Connection Setup is sent over theFACH with Dynamic power according
to the coverage
This algorithm could be active by cell
Benefit
Improve RRC connect setup successrate in case of downlink weak coverageNote: only one fixed power addition step
is supported for Power Up procedure.
i.e. all RRC Connect Setup message at “Power Up” status will
user same FACH power.
Improve RRC connect success ratio
Accessibility Enhancement (cont.)Improve CS/PS RAB establishment success ratio
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Description
Current Algorithm: CE is hardware resource in NodeB, RNC do the CE admission and
preemption, NodeB only do the CE dynamic scheduling between admitted UE. UE is rejected in RNC by CE resource, preemption is triggered in RNC;
UE is admitted in RNC, and reject in NodeB by CE resource (because of CE fragment, etc), preemption
can not be triggered.
Enhancement at RAN15.0:CE Preemption triggered in NodeB, increase the all the feature of
preemption
Benefit Decrease CS/PS RAB Failure due to CE congestion by Enhancement of RAB Preemption
Algorithm
Impact
Low priority service call drop due preempt will increased
UE request Admitted in RNC
Rejected by CE
•Preemption failure
•UE is rejected
UE request Admitted in RNC
Rejected by CE
Preemption triggered in NodeBUE admit success
Original Enhancement
p /
Retainability Enhancement
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y
Description
Current Algorithm: RNC detected TRB reset of
Single PS user in state of Cell_DCH,Radio link
will be deleted and user drop in R14 and earlier
versions.
Enhancement at RAN15.0:Deactivate Radio link
instead of delete,user detect downlink Radio
link failure will trigger cell update procedure. If the
Cell update procedure establish successfully, the
user traffic is resume.
Benefit
Reduce the call drop trigged by TRB Reset,improve PS call drop rate(PS R99 and PS
HSDPA)
Decrease PS Call Drop
Retainability Enhancement(cont.)
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y ( )
Description
Current algorithm: RNC release RL
when RNC detect SRB Reset after
Inter-RAT handover command
message sent. One call drop iscounted
Enhancement at RAN15.0: RNC
cancel the relocation procedure and
trigger call re-establishment by cell
update.
Benefit
Decrease call drop during Inter-RAT
handover procedureCS IRATHO procedure
Decrease CS/PS Call Drop
Mobility Enhancement(CS+PS with Iur Relocation) Description
C
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Description
Current
If CS Relocation switch and PS
DSCR switch is ON, Execute CS+PScombined service handover over Iur,
no relocation executed
RAN15.0
If CS Relocation switch and PS
DSCR switch is ON, Execute CS+PS
combined service handover firstly,then release PS, execute CS
relocation lastly.
Benefit
Decrease CS call drop because that CS
Relocation due to HHO will trigger higher
call drop compared with CS staticrelocation (UE Not involved)
Dependence
None
Only CS+PS SHO over
Iur executed
Current
Step1: CS+PS SHO over
Iur executed
Step2:Release PS , then
execute CS relocation (UE
Not involved)
RAN15.0
IurSRNC DRNC DRNC
Release PS , then execute
CS Relocation due to Hard
Handover
Iur
Iur
SRNC DRNC DRNC
Iur
Step1: CS+PS SHO over Iur
executed
Step2:Release PS , then
execute CS relocation (UE
Not involved)
No Iur
System Capability Improvement
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y p y p
Network KPI
Experience
HSPA
OAM
SMS Paging Enhancement
8/10/2019 Introduction of UMTS RAN15.0_V1.3
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HUAWEI TECHNOLOGIES CO., LTD. Huawei Confidential 118
Description
Current Algorithm:
SMS Paging priority is equal to PS Paging priority. So
when PCH is congested, SMS Paging may be
discarded, leading to SMS Experience get worse
Enhancement at RAN15.0:
Upgrade SMS Paging priority higher than PS Paging
priority as following: Conversational Call > SMS
(Low_Priority_Signalling) > Interactive /Background
/High_Priority_Signalling.
when PCH channel congestion happened ,discard
lowest priority to prioritize higher priority service
Benefit
To improve the success ratio of SMS paging
Page 118
CS
CS
PS
PS
PS
CS
CS
SMS
PS
PS
SMS
Paging Queue Paging Queue
DiscardSMS Paging
SMS Discard PSPaging
Cell HSPA Capability Indicator Enhancement
8/10/2019 Introduction of UMTS RAN15.0_V1.3
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HUAWEI TECHNOLOGIES CO., LTD. Huawei Confidential 119
Description Most of UE, Android especially will display network status as
In idle status. Display “H” logo if SIB5 “HSDPA cell Indicator” is true; else, display “3G” logo.
In Connection status. Display “H” logo if HS-PDSCH is allocated; else, display “3G” logo .
Normally, System will broadcast cell HSPA capability according to cell configuration.
So, some UE will display “H” logo at HSPA cell even at idle status. In this case, the
user maybe have misunderstanding that the phone is online always, the battery
consumption and traffic consumption is increased.
At RAN15.0, one Cell HSPA Capability Display Switch is added to control if broadcast
cell HSPA capability at SIB5
Benefit
Eliminating user misunderstandings
System Capability Improvement
8/10/2019 Introduction of UMTS RAN15.0_V1.3
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HUAWEI TECHNOLOGIES CO., LTD. Huawei Confidential 120
Network KPI
Experience
HSPA
OAM
8/10/2019 Introduction of UMTS RAN15.0_V1.3
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Uplink Enhanced CELL_FACH
8/10/2019 Introduction of UMTS RAN15.0_V1.3
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HUAWEI TECHNOLOGIES CO., LTD. Huawei Confidential 122
DPCCH
F-DPCH
E-DPDCH/E-DPCCH
HS-SCCH
HS-PDSCH (1…N)
……
E-HICH/E-AGCH/E-RGCH
HS-DPCCH
Physical channels for E-FACH/E-RACH users
Description
Current Algorithm HS-DPCCH is Not supported.
NodeB executes blind retransmission
(fixed retransmission times) since there
is no ACK/NACK.
Enhancement at RAN15.0
HS-DPCCH feedback for E-RACH/E-
FACH user supported
NodeB executes the retransmission
based on the ACK/NACK feedback from
UE.
Benefit
Improve eFACH/eRach user downlink
throughput
System Capability Improvement
8/10/2019 Introduction of UMTS RAN15.0_V1.3
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HUAWEI TECHNOLOGIES CO., LTD. Huawei Confidential 123
Network KPI
Experience
HSPA
OAM
Sector level Counter for Multi-RRU Co-cell
8/10/2019 Introduction of UMTS RAN15.0_V1.3
http://slidepdf.com/reader/full/introduction-of-umts-ran150v13 124/125
HUAWEI TECHNOLOGIES CO., LTD. Huawei Confidential 124
Description New Counter Measurement Object is design to evaluate sector
accessibility and retainability
New Counter is useful in case of Multi-RRU co-cell scenario, such as
IDS, highway coverage。
Benefits Improve KPI issue troubleshooting efficiency
No Item Description
1 VS.RL.NormRel.Locell.Sector Cell-Sector level RL normal release number
2 VS.RL.AbnormRel.Locell.Sector Cell-Sector level RL abnormal release number3 VS.PositiveNum.AICH.Locell.Sector Cell-Sector level AI positive response number
4 VS.NegativeNum.AICH.Locell.Sector Cell-Sector level AI positive response number
5 VS.TBNum.Succ.RACH.Locell.SectorCell-Sector level RACH Channel received TB successfully
number
6 VS.TBNum.Total.RACH.Locell.Sector Cell-Sector level RACH Channel received TB total number
8/10/2019 Introduction of UMTS RAN15.0_V1.3
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