Security Level:
UL Spectrum sharing based on DCHSDPA Solution
www.huawei.com
HUAWEI TECHNOLOGIES CO., LTD.
Contents
◆
1. UL Spectrum sharing based on DC-HSDPA Solution Introduction
◆
2. Spectrum Design
◆
3. Hardware Reconstruction Requirements
◆
4. Site Selection
◆
5. Feature Dependency
◆
6. Feature Deployment
◆
7. Use Guidelines
HUAWEI TECHNOLOGIES CO., LTD.
Huawei Confidential
2
1 Solution Introduction-UL Spectrum sharing based
on DC-HSDPA
Challenge: traditional
refarming not satisfy traffic
evolution perfectly
spectrum
3U
UMTS Traffic Loss
UL Spectrum sharing based on DC-HSDPA
U10+L10@15MHz
UMTS Downlink 100% share to LTE
LTE
15MHz
2U
UMTS1
1U
UMTS2’
LTE
DC-HSDPA
UE
U 10MHz
Scenario 1，
U capacity > 1 carrier
UMTS DC main carrier
L10MHz
UMTS
Time
Scenario 2，
U capacity ≤ 1carrier
UMTS
LTE
+40%~50% vs U5MHz +90% vs L5MHz
UMTS DC second carrier，only for DCHSDPA service
Pre-condition
Traditional
refarming
UMTS traffic loss
Refarming
on-demand
HUAWEI TECHNOLOGIES CO., LTD.
1
Total Bandwidth ≥ 15MHz 2 U required traffic 3 More LTE
（if U1=4.2MHz，then total
>1 Carrier
spectrum required
BW≥14.6MHz）
for better LTE
experience
Huawei Confidential
3
2 Spectrum Design
19.8M Sharing 5M UL Spectrum sharing based on DC-HSDPA
2135.1M
NOW：2U or 1U+1L in UL 0 Bufferzone area
2130.1M
10663
2140.1M
1.03M
1.63M
10688
2U
2132.6M
2135.1M
2136.73M
2137.6M
2139.07M
324
10663
4.6M
1U+1L
0 1 2 3 4 5 6 7 8 9
2132.6M
1 1 1 1 1 1 1 1 1 1 2 2 2 2 2 2 2 2 2 2 3 3 3 3 3 3 3 3 3 3 4 4 4 4 4 4 4 4 4 4 5 5 5 5 5 5 5 5 5 5 6 6 6 6 6 6 6 6 6 6 7 7 7 7 7
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4
2134.9M
2130.1M
2149.9
2142.4M
2U+1L UL Spectrum sharing based on DC-HSDPA
10M
2.5M
2.3M
4.6M
BASELINE
349
10688
10663
4.6M
2132.6M
2130.1M
0 1 2 3 4 5 6 7 8 9
2137.4M
2134.9
1 1 1 1 1 1 1 1 1 1 2 2 2 2 2 2 2 2 2 2 3 3 3 3 3 3 3 3 3 3 4 4 4 4 4 4 4 4 4 4
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9
2.5M
324
10688
10663
5M
4.6M
AFTER
2149.9
2144.9M
0 1 2 3 4 5 6 7 8 9
2132.6M
1 1 1 1 1 1 1 1 1 1 2 2 2 2 2 2 2 2 2 2 3 3 3 3 3 3 3 3 3 3 4 4 4 4 4 4 4 4 4 4 5 5 5 5 5 5 5 5 5 5 6 6 6 6 6 6 6 6 6 6 7 7 7 7 7
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4
2130.1M
2142.4M
2137.4M
2134.9M
HUAWEI TECHNOLOGIES CO., LTD.
15M
LTE Downlink available RBs：0-74
LTE uplink available RBs：0-74
Huawei Confidential
4
2149.9
3 Hardware Reconstruction Requirements
Category
Site name
UMTS site
(original UL 0
Bufferzone
UMTS site)
GUL-U-96D
GUL-U-98B
Version
UMPT
UBBP
RRU/RFU
Optical
module
15.1
Satisfied
UBBPe4(UO)>UBBPe4(U*L)
Satisfied
一线核查
UMTS：ACT 1 UMTS CELL，
LTE：ADD 3 LTE CELL
YES
15.1
Satisfied
UBBPd3(0-0-3)>UBBPe4
Satisfied
一线核查
UMTS：ADD 3 UMTS CELL，
LTE：ADD 3 LTE CELL
YES
15.1
Satisfied
UBBPe4(UO)>UBBPe4(U*L)
No change-have
changed
一线核查
UMTS：ACT 1 UMTS CELL and
decrease 3 UMTS cell power to
430
LTE：add 3 LTE CELL
YES
15.0，Need to
be upgraded
Satisfied
UBBPei(LO)>UBBPei(U*L)
WBBP->UBBP
（0-0-3）
Satisfied
一线核查
UMTS：ACT 3 UMTS CELL
LTE：Disable UL 0 bufferzone，
LTE refarming 15M->10M，
DlEarfcn 324->349
YES
15.1
Satisfied
Satisfied
Satisfied
一线核查
UMTS：ADD 3 UMTS CELL
LTE：Disable UL 0 bufferzone，
LTE refarming 15M->10M，
DlEarfcn 324->349
YES
15.1
Satisfied
Satisfied
Satisfied
一线核查
UMTS：ACT 3 UMTS CELL
LTE：Disable UL 0 bufferzone，
LTE refarming 15M->10M，
DlEarfcn 324->349
YES
LTE：Disable UL 0 bufferzone，
LTE refarming 15mM->10M,
DlEarfcn 324->349
NO
GUL-U-117
LTE site
(original UL 0
Bufferzone
LTE site)
GUL-U-068
GUL-U-897
GUL-U-895
GUL-U-177
15.0
3 RRU not support UL SDR
Cell adjustment
UL0
DC
1. One baseband boards are added, three baseband boards are reconstructed.
2. Disable the UL0Bufferzone feature for seven sites.
3. UMTS10688 cells are activated at four sites, and UMTS10688 cells are added to the two sites. LTE cells are added to
three sites, and LTE cells are replanned for four sites.
4.UMTS 10688 need change to10687.
HUAWEI TECHNOLOGIES CO., LTD.
Huawei Confidential
5
4. Site Selection
Site
UMTS
ONLY
LTE
Site name
UMTS Frequency
LTE
Frequency
LTE
bandwidth
RNC
board
GUL-U-96D
10663&10688
NA
NA
ORH02 GTMUb UMPTb1 UBBPe4
GUL-U-98B
10663&10688
NA
NA
ORH02 GTMUc UMPTb1 UBBPd3
GUL-U-117
10663&10688&10713&
10737
NA
NA
ORH02 GTMUb UMPTe1 UBBPe4
GUL-U-068
10663&10688
324
15M
ORH02 GTMUb UMPTb1 UBBPd3
GUL-U-897
10663&10688
324
15M
ORH02 GTMUb UMPTe1 UBBPe4
GUL-U-895
10663&10688
324
15M
ORH02 GTMUb UMPTb1
UBBP Change To
UBBPe4、
UBBPe1
RRU383
9
RRU383
9
RRU550
2
MRFU
V6
MRFU
V6
RRU550
2
no need
no need
no need
no need
no need
no need
We need to do in this area:
1. Close the UL 0 bufferzone solution firstly;
2. In UMTS Bufferzone area sites, add 10M LTE in Green area;
3. In LTE Bufferzone area sites, Change the bandwidth of 15M LTE to 10M in Red area and act UMTS cell 10688;
4. Open DC-HSDPA switch of UMTS cells;
5. After the Baseline test, we change 10M LTE to 15M and open UL Spectrum sharing based on DC-HSDPA in Beta area;
6. Beta test.
HUAWEI TECHNOLOGIES CO., LTD.
Huawei Confidential
6
5 Feature Dependency –Specifications and
Hardware Constraints
Hardware
Requirement
Main control boards
• UMPT
Baseband boards
• UBBP
RF modules
(RRUs/RFUs/AAUs)
•RFUs/RRUs
All RFUs or RRUs supporting LTE or UMTS, excluding the LRFU, MRFU V1, MRFU V2, MRFU
V2a, RRU3203, RRU3801C, RRU3801E, RRU3804, RRU3805, RRU3806, RRU3808, RRU3908
V1, RRU3908 V2, and WRFU
•AAUs
AAU3910, AAU3911, AAU3920, AAU3940, AAU3961, and AAU5940
Antenna specifications
Base station types
• LTE:1T1R、2T2R、2T4R、4T4R
• UMTS:1T1R、1T2R
3900 series base stations and 5900 series base stations
Note：
•UMTS: The downlink services of cells must be set up on a UBBP or BBU3910A. Uplink access resources
cannot be set up on a WBBPa.
HUAWEI TECHNOLOGIES CO., LTD.
Huawei Confidential
7
Feature Dependency -License
RAT
LTE
License Control Item
Model
Sales Unit
UMTS and LTE Spectrum Sharing (LTE FDD) (per Cell)
LT1SULSSBODH
Per Cell
RF Spectrum Sharing License (FDD)(per Band per RU)
LT1SRFSPCS00
Per Band Per RU
Spectrum Sharing License for 5000 Series RF Module (FDD)(per Band per RU)
LT1S5000RFSS
Per Band Per RU
UMTS and LTE Spectrum Sharing Based on DC-HSDPA (UMTS)
LQW9DCDPASL01 Per Cell
UMTS RF spectrum sharing license (UMTS)
Spectrum sharing license for 5000 series RF modules (UMTS)
HUAWEI TECHNOLOGIES CO., LTD.
Huawei Confidential
LQW9RFSSH01
Per Band Per RU
LQW9RF5SSH01
Per Band Per RU
8
Feature Dependency – Mutually Exclusive Functionson the LTE Side
Function Name
Function Switch
Short TTI
Massive MIMO Introduction
GSM and LTE Buffer Zone Optimization
CellShortTtiAlgo.SttiAlgoSwitch
N/A
AvoidGeranInterfSwitch option of the
CellAlgoSwitch.AvoidInterfSwitch parameter
GLZeroBufferZoneSwitch option of the
CellAlgoSwitch.DynSpectrumShareSwitch parameter
GLDynSpectrumShareSwitch option of the
CellAlgoSwitch.DynSpectrumShareSwitch parameter
GL_SPECTRUM_CONCURRENCY option of the
SpectrumCloud.SpectrumCloudSwitch parameter
AvoidUtranInterfSwitch option of the
CellAlgoSwitch.AvoidInterfSwitch parameter
LTE_NR_UPLINK_SPECTRUM_SHR option of the
SpectrumCloud.SpectrumCloudSwitch parameter
AvoidCDMAInterfSwitch option of the
CellAlgoSwitch.AvoidInterfSwitch parameter
Cell.CustomizedBandWidthCfgInd
N/A
GSM and LTE Zero Bufferzone
GSM and LTE FDD Dynamic Spectrum Sharing
GSM and LTE Spectrum Concurrency
UL Refarming Zero Bufferzone
LTE FDD and NR Uplink Spectrum Sharing
CDMA and LTE Zero Bufferzone
Compact Bandwidth
Flexible Bandwidth based on Overlap Carriers
Reference (eRAN Feature Parameter Description
Document)
Short TTI (FDD)
Massive MIMO (FDD)
GSM and LTE Buffer Zone Optimization
GSM and LTE Zero Bufferzone
GSM and LTE FDD Dynamic Spectrum Sharing
GSM and LTE Spectrum Concurrency
UL Refarming Zero Bufferzone
LTE and NR Spectrum Sharing
CDMA and LTE Zero Bufferzone
Compact Bandwidth (FDD)
Flexible Bandwidth based on Overlap Carriers (FDD)
EpdcchFunctionSwitch option of the
Physical Channel Resource Management
CellPdcchAlgo.EpdcchAlgoSwitch parameter
RF Channel Intelligent Shutdowna
CellRfShutdown.RfShutdownSwitch
Energy Conservation and Emission Reduction
SFN cella
Cell.MultiRruCellMode
SFN
UsUeGuaranteeSwitch option of the
Service guarantee for UEs running unlimited servicesa
N/A
CellUSParaCfg.UsAlgoSwitch parameter
On-Demand TX Power Allocation Under EMEa
PDSCHCfg.EmfPowerLimitSwitch
On-Demand TX Power Allocation Under EME
Static shared beam
N/A
Massive MIMO (FDD)
Dynamic dedicated beam
N/A
Massive MIMO (FDD)
a: After this function is enabled, if the PDSCHCfg.CellPowerLimit parameter is set to an above-zero value to limit the maximum transmit power of a single RF channel for an
LTE cell, the maximum transmit power limitation function is mutually exclusive with RF Channel Intelligent Shutdown, SFN cell, service guarantee for UEs running unlimited
services, and On-Demand TX Power Allocation Under EME.
ePDCCH
HUAWEI TECHNOLOGIES CO., LTD.
Huawei Confidential
9
Feature Dependency – Mutually Exclusive Functions
on the UMTS Side
Function Name
Function Switch
Reference
Independent Demodulation of Signals from Multiple
Small Cell RRUs in One Cell
N/A
Independent Demodulation of Signals from Multiple Small Cell
RRUs in One Cell
Extended Cell Coverage up to 200km
N/A
Extended Range
Transmit Diversity
UCELL.TxDiversityInd or ULOCELL.TTW
TX Diversity and RX Diversity
Independent Demodulation of Signals from Multiple
RRUs in One Cell
N/A
Multiple RRUs in One Cell
Cell Digital Combination and Split
N/A
Multiple RRUs in One Cell
0.5/0.5 configuration mode
ULOCELL.LOCELLTYPE
Multiple RRUs in One Cell
UMTS 4T Beam Optimization
ULOCELL.BFMODE
UMTS 4T Beam Optimization
UMTS Massive Beam 8T8R
ULOCELL.BFMODE
Massive Beam
Intelligent 2T VAM
ULOCELL.INTEL2TVAM
Intelligent 2T VAM
HSUPA FDE
ULOCELL.FDEMODE
Frequency Domain Equalization
Dual Carriers over Narrowband
ULOCELL.DLASYMFILTER
Dual Carriers over Narrowband
Hitless Cell Rehoming
NODEBALGPARA.DLAUTORESHUFFLESW
Hitless Cell Rehoming
ULOCELL.UL0BUFFERZONE
UMTS and LTE Zero Bufferzone
ULOCELL.ULSPECTRUMSHARINGPHASE2
UMTS and LTE Spectrum Sharing
ULOCELLMACHSPARA.SECCELLACTDEASW
Traffic-Based Activation and Deactivation of the Supplementary
Carrier In Multi-carrier
UMTS and LTE Zero Bufferzone
UMTS and LTE Spectrum Sharing Phase
2a
Traffic-Based Activation and Deactivation of the
Supplementary Carrier In Multi-carriera
a: Traffic-Based Activation and Deactivation of the Supplementary Carrier In Multi-carrier cannot be enabled in the primary cell.
HUAWEI TECHNOLOGIES CO., LTD.
Huawei Confidential
10
6 Feature Deployment – Deployment Requirements
•UMTS secondary cells and LTE cells must be deployed in 1:1 co-site and co-coverage
mode.
•It is recommended that the Power Spectral Density (PSD) of the UMTS secondary cells be
equal to that of the LTE cells.
•This function can be enabled on either of the following:
◾Specific areas of the network
A buffer zone must be planned to prevent co-channel interference between UMTS and LTE.
The method for planning the buffer zone is the same as that for planning the buffer zone
in UMTS and LTE refarming scenarios. During buffer zone planning, operators must
consider the spectrum resources of both radio access technologies (RATs). For more
information, contact Huawei engineers.
◾Entire network
No buffer zone is required.
HUAWEI TECHNOLOGIES CO., LTD.
Huawei Confidential
11
7 Use Guidelines – Activation
• LTE Side
• Deactivate LTE cells, and perform the following operations to configure related parameters before reactivating these cells.
//Binding a cell that requires this function to a baseband processing board supporting this function
ADD EUCELLSECTOREQM: LocalCellId=0, SectorEqmId=1, BaseBandEqmId=12;
//(Optional) Reconfiguring the LTE center E-UTRA absolute radio frequency channel number (EARFCN) and bandwidths if necessary
MOD CELL: LocalCellId=0, DlEarfcn=3600, DlBandWidth=CELL_BW_N50, UlBandWidth=CELL_BW_N50;
//Configuring the RBs reserved for LTE (range of available RBs). The following uses the RB configuration in a 10 MHz LTE bandwidth scenario as an
example.
ADD ULSPECTRUMSHRCONFIG: ULSpectrumSharingConfigId=0, PrbRsvType=LTE_DL_AVAILABLE_PRB, LtePrbStartIndex=0, LtePrbEndIndex=49;
ADD ULSPECTRUMSHRCONFIG: ULSpectrumSharingConfigId=0, PrbRsvType=LTE_UL_AVAILABLE_PRB, LtePrbStartIndex=0, LtePrbEndIndex=49;
ADD ULSPECTRUMSHRCONFIG: ULSpectrumSharingConfigId=0, PrbRsvType=LTE_DL_HIGH_PRIORITY_PRB, LtePrbStartIndex=0,
LtePrbEndIndex=24;
//Enabling UMTS and LTE Spectrum Sharing Based on DC-HSDPA
ADD SPECTRUMCLOUD: LocalCellId=0, SpectrumCloudSwitch=DC_HSDPA_BASED_UL_SPECTRUM_SHR, DlCchSendStrategy=ADAPTIVE,
ULSpectrumSharingConfigId=0;
//Configuring the PRACH frequency offset policy
MOD RACHCFG: LocalCellId=0, PrachFreqOffsetStrategy=FULLY_AUTOMATIC;
//Configuring the SRS ACK/NACK simultaneous transmission policy
MOD SRSCFG: LocalCellId=0, AnSrsSimuTrans=BOOLEAN_TRUE;
//Setting the non-standard bandwidth algorithm switch, PUCCH resource adjustment switch, and maximum transmit power switch for cells using a nonstandard bandwidth in the downlink
MOD CELLALGOSWITCH: LocalCellId=0, PucchAlgoSwitch=PucchSwitch-1, NonStandardBwAlgoSw=PCFICH_POWER_OPT_SWITCH1&PDCCH_POWER_OPT_SWITCH-1, DlPcAlgoSwitch=DlNonStandardBwMaxPwrSwitch-1;
//Setting RptCqiFltInitSwitch, AdaptiveStepVarySwitch, and PreciseMcsAdaptSwitch
MOD CELLALGOSWITCH: LocalCellId=0, CqiAdjAlgoSwitch=RptCqiFltInitSwitch-1&AdaptiveStepVarySwitch-1&PreciseMcsAdaptSwitch-1;
• UMTS Side
//Activating UMTS and LTE Spectrum Sharing Based on DC-HSDPA (UMTS) and configuring the co-site co-coverage LTE cell
MOD ULOCELL: ULOCELLID=14601, LOCELLTYPE=NORMAL_CELL, DCHSDPASHAREDWITHLTE=DYNAMICBANDWIDTH, COCOVERLTECI=1,
COCOVERLTESECTORID=65536;
//(Optional. This operation is required when the secondary cell is configured as a neighboring cell on an adjacent RNC) Configuring the DC-HSDPA
sharing with LTE flag
MOD UEXT3GCELL: NRncId=9, CellId=14601, DCHSDPAShareWithLTEFlag=TRUE;
HUAWEI TECHNOLOGIES CO., LTD.
Huawei Confidential
12
Use Guidelines –Deactivation
•
LTE Side
•
Deactivate LTE cells, and perform the following operations to configure related parameters before reactivating these cells.
//Turning off the non-standard bandwidth algorithm switch and PUCCH resource adjustment switch
MOD CELLALGOSWITCH: LocalCellId=0, PucchAlgoSwitch=PucchSwitch-0, NonStandardBwAlgoSw=PCFICH_POWER_OPT_SWITCH-
0&PDCCH_POWER_OPT_SWITCH-0;
//Disabling UMTS and LTE Spectrum Sharing Based on DC-HSDPA
MOD SPECTRUMCLOUD: LocalCellId=0, SpectrumCloudSwitch=OFF;
//(Optional) Modifying the LTE cell downlink EARFCN, uplink bandwidth, and downlink bandwidth as required
MOD CELL: LocalCellId=0, DlEarfcn=3600, DlBandWidth=CELL_BW_N25, UlBandWidth=CELL_BW_N25;
•
UMTS Side
//Deactivating UMTS and LTE Spectrum Sharing Based on DC-HSDPA (UMTS)
MOD ULOCELL: ULOCELLID=14601, LOCELLTYPE=NORMAL_CELL, DCHSDPASHAREDWITHLTE=NOTSUPPORT;
//(Optional) Deactivating the secondary cell (This operation is required when the function deactivation on the LTE side involves the modification of
the downlink EARFCN and the uplink and downlink bandwidths, to avoid interference to LTE.)
DEA UCELL: CELLID=14601;
HUAWEI TECHNOLOGIES CO., LTD.
Huawei Confidential
13
Use Guidelines – Activation observation
⚫
Activation observation of LTE side
Counters for measuring the downlink capacity of LTE cells：
Counter
Downlink capacity of LTE cells
⚫
Calculation Formula
L.ChMeas.PRB.DL.Avail x ((L.Traffic.DL.SCH.QPSK.TB.bits +
L.Traffic.DL.SCH.16QAM.TB.bits + L.Traffic.DL.SCH.64QAM.TB.bits +
L.Traffic.DL.SCH.256QAM.TB.bits)/L.ChMeas.PRB.DL.Used.Avg/Traffic
statistical period/1000000)
Activation observation of UMTS
If both of the following conditions are met, the function has been activated:
➢
The value of the VS.HSDPA.DC.SEC.UE.Mean.Cell counter on the RNC is greater than zero.
➢
The value of the VS.ULFreShared.CombFilter.Bandwidth.Mean counter on the NodeB is greater than zero.
After this function is enabled, observe the values of the following counters to determine the capacity decrease of the UMTS secondary cell:
➢
Number of TTIs in which scheduling is disallowed due to spectrum sharing for cell: VS.HSDPA.NotAllowSchedule.FreqShare•Average single
HSDPA UE throughput: VS.HSDPA.DataOutput.Traffic/(VS.HSDPA.DataTtiNum.User x 2)
➢
Average single DC-HSDPA UE throughput: VS.DataOutput.DCHSDPA.Traffic/(Sum of VS.DCHSDPA.DataTtiNum.User values of the primary and
secondary carriers on the sector x 2)
➢
Average throughput of an HSDPA cell: VS.HSDPA.DataOutput.Traffic/[(VS.DataTtiRatio.Mean – VS.HSDPA.InactiveDataTtiRatio.Mean) x
Statistical period x 60]
HUAWEI TECHNOLOGIES CO., LTD.
Huawei Confidential
14
Thank you
www.huawei.com
Copyright©2011 Huawei Technologies Co., Ltd. All Rights Reserved.
The information in this document may contain predictive statements including, without limitation, statements
regarding the future financial and operating results, future product portfolio, new technology, etc. There are a
number of factors that could cause actual results and developments to differ materially from those expressed or
implied in the predictive statements. Therefore, such information is provided for reference purpose only and
constitutes neither an offer nor an acceptance. Huawei may change the information at any time without notice.