duw capacity
DESCRIPTION
DUW CapacityTRANSCRIPT
Duw Dimensioning
Mapping basebands
PlugInUnit
Slot
TxDeviceGroup
RaxDeviceGroup
DuiDeviceGroup
RXM
TXM
DBMs are NOT visible in MOM, may however be visible in MP SW for resource handling
Proposed mapping:
• One RaxDeviceGroup per RXM on DUW.
• One TxDeviceGroup for all TXMs
• Future possibility to distribute TXMs over two TxDeviceGroups
RaxDeviceGroup
RXM
RaxDeviceGroup
RXM
TXM
TXM
TXM
TXM
Ric
LogicalBoard
LogicalBoard
LogicalBoard
LogicalBoard
LogicalBoard
Managed Objects
/ fROs
Subsystem appl. HW
/SW
hW capability
Duw capacity
DUW 30 DUW 20 DUW 10
Channel Elements768 DL
512 UL
384 DL
384 UL
128 DL
128 UL
DL Peak/cc (Mbps)
DL Peak Throughput (Mbps)
42
252
42
126
42
42UL Peak/cc (Mbps)
UL Peak Throughput (Mbps)
12
48
12
36
12
12
Number HSPA users with CPC
Peak Users/cc
1152
256
576
256
192
192
Each DUW can control up to 6 ccEach RU 4 carriers (60w)
Resource_ID
› A resource_ID (TXM) on a DUW can be used for the following purposes
– Up to 6 cell carriers HSDPA with a maximum of 30 HS codes and up to 128 users (max 96 users per cell)
– R99 DCH with a capacity of 128CE– 6 cell carriers EUL with up to 96 users (max 48 users per cell carrier)
› We can treat one TXM on a DUW as HSPDA processing resource.
Resources per duw
DUW 10 01 = Low capacity = 128CE = 1 RXM + 3 TXM (at most 1 for DCH)
DUW 20 01 = Medium capacity = 384CE = 3 RXM + 5 TXM (3)
DUW 30 01 = High capacity = 768CE = 4 RXM + 8 TXM (6)
R99 HS EUL
DUW 10 3 1 1 1DUW 20 5 3 3 1DUW 30 8 6 4 1
Maximum Resource_ID that can be configured forDUW
Type
Total Resource_ID available in
DUW
Duw10
HS
EUL
R99
DUW10 (3 Resources Id)
1 HS Resource (128 CE)1 Eul Resource (128CE)1 R99 Resources (128 CE)
DUW TypeTotal Resources_ID available in DUW
Maximum Resource_ID configurable
R99 HS EUL
DUW 10 3 1 1 1
duw20
HS
EUL
R99/HS
R99
DUW20 (5 Resources Id)
1 HS Resource (128 CE)1 Eul Resource (128CE)3 R99 Resources (384 CE)
DUW TypeTotal Resources_ID available in DUW
Maximum Resource_ID configurable
R99 HS EUL
DUW 20 5 3 3 1
R99/HS
duw30
HS
EUL
R99/HS
DUW30 (8 Resources Id)
1 HS Resource (128 CE)1 Eul Resource (128CE)6 R99 Resources (768 CE)
R99/HSR99/HS
R99
R99R99
DUW TypeTotal Resources_ID available in DUW
Maximum Resource_ID configurable
R99 HS EUL
DUW 30 8 6 4 1
A-dch ce reservation
• A-DCH are dedicated channels, used for UL/DL signaling (SRB) when using HSDPA service.
• A-DCH channels consume CEs both for UL/DL, but in DL these CEs are reserved from the DL R99 CE pool.
• It is important to calculate the amount of R99 CE as this A-DCH reservation effectively reduces the CE capacity for R99.
A-DCHs for UL&DL
With W11B feature “SRB on HSDPA”, no A-DCH CEs reservation is necessary!!
A-dch ce reservation• The cost for 1 A-DCH in RBS6000 is 0.5CE.
• The amount of A-DCH resources is reserved by default in a Baseband pool the minimum of Criteria 1 and Criteria 2 below:
• Criteria 1
A-DCH CE reserved = 1.3 * sum of the lowest of the values of either the RBS License Key “Number of HSDPA users per Cell” or RbsLocalCell::maxNumHsdpaUsers, determined cell-by-cell * 0.5
For eg,
1st cell: RBS License Key “Number of HSDPA users per Cell” = 64 and MO parameter RBSLocalCell:: maxNumHsdpaUsers = 32
2nd cell: RBS License Key “Number of HSDPA users per Cell” = 64 and MO parameter RBSLocalCell:: maxNumHsdpaUsers = 64
Therefore, A-DCH CE reserved = (32 + 64) x 1.3 x 0.5 = 63 CE
• Criteria 2
A-DCH CE reserved = 1.3 * number of HS Resource_ID * 128 * 0.5
Therefore, A-DCH CE reserved = (32 + 64) x 1.3 x 0.5 = 63 CE
Example 1
HS
EUL
HS
R99
R99
DUW20 (5 Resources Id)
Example 1:DUW203 cc (32 HS users)2 HS resources1 EUL resource2 R99 resources
5 resources
numHScodesresources=2
numEulresources=1
2 R99 x 128 = 256 CE 63 CE required for A-DCH256-63 =193 CE for R99
Example 2
HS
EUL
HS
R99
R99
DUW20 (5 Resources Id)
Example 2:DUW206 cc (32 HS users)2 HS resources1 EUL resource2 R99 resources
5 resources
numHScodesresources=2
numEulresources=1
2 R99 x 128 = 256 CE A-DCH: min(2*128*1.3*0.5,32*6*1.3*0.5)= min(165,125)=125 for A-DCH 256-125 =131 CE for R99
Dual carrier
Example 4:For Dual Carrier:The two cells involved in the MC connection must be configured in the same HSDPA resource_ID. For a 3 sector site, ideally we should define 3 HS Resources.
DUW20
DUW30
2 HS Resources1 EUL Resource2 R99 Resources
3 HS Resources1 EUL Resource4 R99 Resources
1R99 x 128 = 128 CE 125 CE required for A-DCH256-125 =131 CE for R99
Not possible to define 3 HS resources with 32 HS users, just 3CEs
4R99 x 128 = 512 CE 125 CE required for A-DCH256-125 =387 CE for R99
Foa 3rd carrier
DUW20 (5 Resources Id) + DUW10 (3 Rerouces Id)
2 OSP Carriers and 1 VDF CarrierDual DUWDUW20 + DUW106 cc (32 HS users) 1st DUW (HS only on 2nd carrier)3 cc (32 HS users) 2nd DUW (HS)1 HS resource1 EUL resource3 R99 resources 1 HS resources 0 EUL resource
1 R99 resource
3R99 x 128 = 384 CE 63 CE required for A-DCH384-125 =321 CE for R99
1 R99 x 128 = 128 CE 63 CE required for A-DCH128-63 =65 CE for R99
CEs on different DUWs do not workas a pool!!
Dual duw legacy – mad0226
DUW20 (5 Resources Id) + DUW20 (5 Rerouces Id)
2 OSP CarriersDual DUWDUW20 + DUW203 cc (64 HS users) 1st DUW (HS)3 cc (non HS) 2nd DUW2 HS resource1 EUL resource2 R99 resources 0 HS resource 0 EUL resource
3 R99 resource
2R99 x 128 = 256 CE 125 CE required for A-DCH256-84=131 CE for R99
3R99 x 128 = 384 CE 0 CE required for A-DCH384 CE for R99
Even though there are two idle resource (not used for EUL), the Maximum number of R99 resource is 3.
Total DL = 131+384=515
Dual duw legacy – mad0226
Dual duw legacy – mad0226
Final comments
• In order to make a proper DUW dimensioning, it has to be taken into account:
• Number of HS Users per cell
• Number of HSDPA Resources
• Number of EUL Resources
• Number of Carriers per sector
• Number of sectors
• Number of necessary UL&DL CEs
• maxDlPowerCapability: The maximum downlink power capability for the cell. The attribute is calculated by the RBS and reported to the RNC.(maxDlPowerCapability = Nominal power (carrier) - ∑ dlattenuation )
• maximumtransmissionpower: This parameter allows the operator to limit the maximum used power in the cell. In normal cases this is not necessary.
appendix I power parameters
maximumtransmissionpower
* 1 carrier node
Maxdlpowercapability
dlattenuation
maxTotalOutputPower= 20W
appendix I power parameters
maxTotalOutputPower= 40W
Maxdlpowercapability for F1 cells
dlattenuation
dlattenuation
20W
Maxdlpowercapability for F2 cells
20W
Maxdlpowercapability
dlattenuation
maxTotalOutputPower= 20W 1 carrier node
2 carriers node
appendix II ce fract dual duw
Parameter ul/dlLicFractbbpool2 (DUW same capacity)Fraction (%) of licensed CE assigned to 2nd BaseBandpool
CE UL UL CE DL DLBbPool1 DUW10 128 0.5 128 0.5 ulLicFractBbPool2 50%BbPool2 DUW10 128 0.5 128 0.5 DlLicFractBbPool2 50%
256 256
CE UL UL CE DL DLBbPool1 DUW20 384 0.5 384 0.5 ulLicFractBbPool2 50%BbPool2 DUW20 384 0.5 384 0.5 DlLicFractBbPool2 50%
768 768
CE UL UL CE DL DLBbPool1 DUW30 512 0.5 768 0.5 ulLicFractBbPool2 50%BbPool2 DUW30 512 0.5 768 0.5 DlLicFractBbPool2 50%
1024 1536
*This parameter must be adjusted/optimized depending on the CE consumption per BBPool.
appendix II ce fract dual duw
Parameter ul/dlLicFractbbpool2 (DUW different capacity)
CE UL UL CE DL DLBbPool1 DUW20 384 0.75 384 0.75 ulLicFractBbPool2 25%BbPool2 DUW10 128 0.25 128 0.25 DlLicFractBbPool2 25%
512 512
CE UL UL CE DL DLBbPool1 DUW10 128 0.25 128 0.25 ulLicFractBbPool2 75%BbPool2 DUW20 384 0.75 384 0.75 DlLicFractBbPool2 75%
512 512
CE UL UL CE DL DLBbPool1 DUW10 128 0.2 128 0.142857 ulLicFractBbPool2 80%BbPool2 DUW30 512 0.8 768 0.857143 DlLicFractBbPool2 86%
640 896
CE UL UL CE DL DLBbPool1 DUW20 384 0.428571 384 0.333333 ulLicFractBbPool2 57%BbPool2 DUW30 512 0.571429 768 0.666667 DlLicFractBbPool2 67%
896 1152