Mapping basebands S l o PlugIn t Unit LogicalBo ard DuiDeviceGr oup
RaxDeviceGr oup R i c
LogicalBo ard
LogicalBo ard
R X M
DBMs are NOT visible in MOM, may however be visible in MP SW for resource handling
LogicalBo ard
RaxDeviceGr oup
R X M
Managed / Objects fRO Subsystem appl. s / HW S
LogicalBo ard
TxDeviceGr oup
RaxDeviceGr oup
R X M
T X M
T X M
T X M
T X M
T X M
Proposed One RaxDeviceGroup per RXM on •mapping: One TxDeviceGroup for all • DUW. TXMs • Future possibility to distribute TXMs over two TxDeviceGroups
hW capability
Duw capacity
Each DUW can control up to 6 cc Each 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 = Low capacity = 128CE = 1 RXM + 3 TXM (at most 1 for DCH) = Medium capacity = 384CE = 3 RXM + 5 TXM (3) = High capacity = 768CE = 4 RXM + 8 TXM (6)
DUW Type
Total Resource_ID available in DUW
DUW 10 DUW 20 DUW 30
3 5 8
Maximum Resource_ID that can be configured f or R99
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
Example 1
HS EUL
Example 1: DUW20 3 cc (32 HS users) 2 HS resources 1 EUL resource 2 R99 resources 5 resources
HS R99
numHScodesresources=2 numEulresources=1
R99
DUW20 (5 Resources Id)
2 R99 x 128 = 256 CE 63 CE required for A-DCH 256-63 =193 CE for R99
Example 2
HS EUL
Example 2: DUW20 6 cc (32 HS users) 2 HS resources 1 EUL resource 2 R99 resources 5 resources
HS R99
numHScodesresources=2 numEulresources=1
R99
DUW20 (5 Resources Id)
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. DUW2 0
2R99 x 128 = 256 CE 125 CE required for A-DCH 256-84=131 CE for R99 3R99 x 128 = 384 CE 0 CE required for A-DCH 384 CE for R99
Total DL = 131+384=515
DUW20 (5 Resources Id) + DUW20 (5 Rerouces Id)
Even though there are two idle resource (not used for EUL), the Maximum number of R99 resource is 3.
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
appendix I power parameters •
•
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. * 1 carrier node
maximumtransmissionpowe r
maxTotalOutputPower= 20W
Maxdlpowercapabilit y
dlattenuatio n
appendix I power parameters maxTotalOutputPower= 20W
Maxdlpowercapabilit y
1 carrier node
dlattenuatio n
2 carriers node
maxTotalOutputPower= 40W 20 W
20 W
Maxdlpowercapabilit y for F1 cells
dlattenuatio n
Maxdlpowercapabilit y for F2 cells
dlattenuatio n
appendix II ce fract dual duw Parameter ul/dlLicFractbbpool2 (DUW same capacity) Fraction (%) of licensed CE assigned to 2nd BaseBandpool
C E UL
UL
C E DL
DL
BbPool1
DUW10
128
0.5
128
0.5
ulLicFractBbPool2
50%
BbPool2
DUW10
128
0.5
128
0.5
DlLicFractBbPool 2
50%
256
C E UL
256
UL
C E DL
DL
BbPool1
DUW20
384
0.5
384
0.5
ulLicFractBbPool2
50%
BbPool2
DUW20
384
0.5
384
0.5
DlLicFractBbPool 2
50%
768
C E UL
768
UL
C E DL
DL
BbPool1
DUW30
512
0.5
768
0.5
ulLicFractBbPool2
50%
BbPool2
DUW30
512
0.5
768
0.5
DlLicFractBbPool 2
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
