UMTS 900 Guidelines
UMTS 900 Guidelines
UMTS 900 Guidelines
29-11-2011
Content
U900 Initial Strategy
U900 Design Options
U900 Guidelines 3 stages
Neighbouring strategy
U900 Optimization for Coverage, Performance, Capacity.
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Design Options
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Clean 2G BA lists.
Clean 3G inter-frequency neighbours.
Plan 3G UMTS900 <> UMTS900 neighbours.
Plan 3G UMTS900 <> UMTS2100 neighbours.
Plan 2G IRAT neighbours.
Audit and Plan idle mode parameters to meet design.
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Neighbouring Strategy
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FEMTO / F3
Femto Cells
Edge of the cell
F1_HSPA/R99
CellA_GSM
F2_HSPA/R99
F2_HSPA/R99
F1_HSPA/R99
F1_HSPA_R99
CellB_GSM
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CellD_GSM
4. Inter frequency reselection base on coverage take place at the edge of each
carrier.
5. Inter RAT reselection:
GSM F1
GSMFemto
F2 GSM
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F1_HSPA/R99
CellA_GSM
F2_HSPA/R99
F2_HSPA/R99
F1_HSPA/R99
F1_HSPA_R99
CellB_GSM
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CellD_GSM
4. Inter frequency handover base on coverage take place at the edge of each carrier.
5. All UMTS carries can handover to GSM, but GSM to UMTS handover is not
allowed to avoid ping pong inter RAT handover
F1GSM
F2 GSM
Note:
Currently E/// is set to GSM prefer, inter frequency disable.
NSN and Huawei can measure simultaneously inter frequency and GSM.
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F3_HSPA/R99
F3_HSPA/R99
FEMTO/ F3
F1_HSPA/R99
CellA_GSM
F2_HSPA/R99
F2_HSPA/R99
F1_HSPA/R99
F1_HSPA_R99
CellB_GSM
Technical Options
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CellD_GSM
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GSMF1
GSMFemto
F2 GSM
F3 GSM
Technical Options
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F3_HSPA/R99
F3_HSPA/R99
F1_HSPA/R99
CellA_GSM
F2_HSPA/R99
F2_HSPA/R99
F1_HSPA/R99
F1_HSPA_R99
CellB_GSM
Technical Options
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CellD_GSM
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4. Inter frequency handover base on the coverage only take place at the edge of
each carrier.
5. All UMTS carries can handover to GSM, but GSM to UMTS handover is not
allowed to avoid ping pong inter RAT handover
F1GSM
F2 GSM
F3 GSM
Note:
Currently E/// is set to GSM prefer, inter frequency disable.
NSN and Huawei can measure simultaneously inter frequency and GSM.
Technical Options
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FEMTO
Inter-RAT Neighbor
F2_HSPA/R99
F1_HSPA/R99
F2_HSPA/R99
F1_HSPA/R99
F1_HSPA_R99
U900
CellA_GSM
Femto Cells
F2_HSPA/R99
U900
CellB_GSM
CellD_GSM
Note: According 3GPP specs devices are capable of monitoring only three 3G frequencies plus GSM.
.
Radio Design Team
Technical Options
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GSM F1
GSMU900
GSM Femto
F2 GSM
Technical Options
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F2_HSPA/R99
F2_HSPA/R99
F1_HSPA/R99
F1_HSPA_R99
U900
CellA_GSM
U900
CellB_GSM
Technical Options
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CellD_GSM
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2.
3.
Inter-Freq:
According 3GPP specs devices are capable of monitoring only three 3G frequencies plus GSM.
F1U900
F2 F1
4.
5.
All UMTS carries can handover to GSM, but GSM to UMTS handover is not allowed to avoid
ping pong inter RAT handover
F1GSM
F2 GSM
Note:
NSN and Huawei can measure simultaneously inter frequency and GSM.
Technical Options
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FEMTO / F3
F3_HSPA/R99
F3_HSPA/R99
Inter-RAT Neighbor
F2_HSPA/R99
F1_HSPA/R99
F2_HSPA/R99
F1_HSPA/R99
F1_HSPA_R99
U900
CellA_GSM
Femto Cells
F2_HSPA/R99
U900
CellB_GSM
Technical Options
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CellD_GSM
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GSM F1
GSMU900
GSM Femto
F2 GSM
F3GSM
Technical Options
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F3_HSPA/R99
F3_HSPA/R99
Inter-Freq HO
F2_HSPA/R99
F2_HSPA/R99
F2_HSPA/R99
F1_HSPA/R99
F1_HSPA_R99
U900
CellA_GSM
U900
CellB_GSM
Technical Options
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CellD_GSM
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2.
Inter-Freq:
According 3GPP specs devices are capable of monitoring only three 3G frequencies plus GSM.
F1F3 on the co-sectors cells
F2 F1,F3
F3F1 on non co-sector cells
F3F2
3.
4.
All UMTS carries can handover to GSM, but GSM to UMTS handover is not allowed to avoid
ping pong inter RAT handover
F1GSM
F2 GSM
F3 GSM
Note:
NSN and Huawei can measure simultaneously inter frequency and GSM.
Technical Options
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U900 - Optimization
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2. Increased Coverage:
Areas of high mobility where traffic would be served better if on the U900 layer. (e.g.
coverage holes on Motorways, main roads).
3. Capacity:
Sites where U2100 layers are more highly loaded than U900.
Traffic is distributed evenly over all cells on the site.
4. Performance:
Low traffic sites.
Traffic is pushed to U900 to benefit from better HS performance due to better CQI, RSCP etc
for a given location over U2100.
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dchIflsMarginCode = 0
dchIflsMarginPower = 0
hsIflsMarginUsers = 0
Settings U900:
Settings U900:
dchIflsMarginCode = 50
dchIflsMarginPower = 50
hsIflsMarginUsers = 50
dchIflsMarginCode = 0
dchIflsMarginPower = 0
hsIflsMarginUsers = 0
Increased Coverage
Settings U2100:
Performance (HS)
Settings U2100:
dchIflsMarginCode = 50
dchIflsMarginPower = 50
hsIflsMarginUsers = 50
dchIflsMarginCode = 0
dchIflsMarginPower = 0
hsIflsMarginUsers = 50
Settings U900:
Settings U900:
dchIflsMarginCode = 0
dchIflsMarginPower = 0
hsIflsMarginUsers = 0
dchIflsMarginCode = 50
dchIflsMarginPower = 50
hsIflsMarginUsers = 0
C3- Company Confidential
Technical Options
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All co-sectored cells have two way coverage relations between all other cells in the sector.
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All co-sectored cells have two way coverage relations between all other cells in the sector.
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All co-sectored cells have two way coverage relations between all other cells in the sector.
C3- Company Confidential
Technical Options
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All co-sectored cells have two way coverage relations between all other cells in the sector.
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All co-sectored cells have two way coverage relations between all other cells in the sector.
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Thank you
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