Security Level:
BFKT & TUC Network Inter-Working Strategy 7th Mar, 2016 www.huawei.com
HUAWEI TECHNOLOGIES CO., LTD.
Huawei Confidential
Network Frequency Spectrum Allocation 0.1M
0.1M
G900 =2.4M
G900
L900 = 3750
L900 5M
G900 =2.4M
U850 F3 = 4358
U850 F2 = 4383
U850 F1 = 4408
U850
U850
U850
G900
BW = 10MHz
GSM1800
G1.8
BW = 4.8 x 3 MHz
L1.8 = 1275
L1800 10M
GSM1800
U2.1 = 10638
L2.1 = 251
U2100
L2100 10M
G1.8
BW = 15MHz
BW = 5M
BW = 10M
System
PLMN
DL ARFCN
UL ARFCN
Bandwidth
UL Frequency
DL Frequency
UMTS 2100
520-04
10638
9688
5 MHz
1935 - 1940
2125 - 2130
LTE 2100
520-04
251
18251
10 MHz
1940 - 1950
2130 - 2140
LTE 1800*
520-04
1275
19275
10 MHz
1712.5 - 1727.5
1807.5 - 1817.5
LTE 900
520-04
3750
21750
5 MHz
907.5 – 912.5
952.5 – 957.5
UMTS 850 F1
520-00
4408
4183
4.8 MHz
834.2 - 839
879.2 - 884
UMTS 850 F2
520-00
4383
4158
4.8 MHz
829.2 - 834
874.2 - 879
UMTS 850 F3
520-00
4358
4133
4.8 MHz
824.2 - 829
869.2 - 874
GSM 1800
520-99
512 – 523 / 574-585
GSM 900
520-99
83-86, 114-124 (BCCH) 76-82,87/113 (TCH)
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1710.1 - 1712.5 1805.1 - 1807.5 1722.5 - 1724.9 1817.5 - 1819.9 905.1 – 907.5 950.1 – 952.5 5 MHz 912.5 – 914.9 957.5 – 959.9 * L1800: current use 1300, will re-farm to 1275. 4.8 MHz
Idle mode Inter-working L1800 (Priority 6) Idle-MLB
L2100 (Priority 6)
TUC PLMN04
L900 (Priority 5)
1. 2.
LTE High Band: Idle MLB; LTE: Intra RAT Reselection;
3.
LTE U850 F1/F2: IRAT Reselection; L1800/L2100 U2100: IRAT Reselection;
4. L2U: F1/F2 U2L: All LTE
U850 F1F2 + U2100; F2 F1 + F3; F3F1 + F2 U2100 F1 + F2.
G2L Reselection
U2100 (Priority 4) F1/F2
5.
U2100 U850 F1/F2: Intra RAT Reselection;
6.
G900 U850 F1: One Way Reselection; G1800 U850 F1/U2100: One Way Reselection;
7.
U850 (Priority 3)
BFKT PLMN00
8.
Prefer 3G F1/F2
TMV PLMN99 TUC PLMN99 HUAWEI TECHNOLOGIES CO., LTD.
G900 L900: One Way Reselection.
G1800 (Priority 0) G900 (Priority 0) Huawei Confidential
Red: LTE; Orange: UL IRAT; Blue: UMTS; Green: GU IRAT; Pink: GL IRAT; Gray: GSM
Voice Service Inter-working Strategy L1800 (Priority 6)
1.
FR
2. 3.
L2100 (Priority 6)
FR
CSFB
TUC PLMN04
CSFB
4.
VoLTE
L900 (Priority 5)
5. SRVCC to F1
FR
VoLTE HO: L1.8/L2.1 HO to L900; VoLTE L1.8 L2.1/L900; SRVCC: LTE to U850;
L1.8/L2.1 CSFB: to U2100, and FR to L1.8/L2.1; L900 CSFB: to U850 and G900, U850 enable measurement based fast return to L900 after RAN17.1;
1. CSFB
6.
U2100 U850 F1/F2: Voice HO;
7.
U2100 G1800/G900: One Way IRAT Voice HO; G1800 G900: bidirectional Voice HO.
U2100 (Priority 4) FR
3G Voice to F1/F2
U850 (Priority 3)
BFKT PLMN00
8. U2G HO
TMV PLMN99
G1800 (Priority 0) 2. CSFB
TUC PLMN99 HUAWEI TECHNOLOGIES CO., LTD.
G900 (Priority 0) Huawei Confidential
*CSFB from L2100/L1800 to U850 in case of Pico Red: LTE; Orange: UL IRAT; Blue: UMTS; Green: GU IRAT; Pink: GL IRAT; Gray: GSM
Data Inter-working Strategy L1800 (Priority 6)
L2U PS HO U2L Redirection
TUC PLMN04
L2100 (Priority 6)
L900 (Priority 5)
1. 2. 3.
L1.8/L2.1 L900: PSHO; L1.8 L2.1: PS HO; L900 L1.8/L2.1 PS HO by priority;
4.
LTE IRAT PS HO U850, then U2L Redirection to LTE; LTE L1.8/L2.1 IRAT PS HO U2100 (Only Co-sector Neighbor), then U2L Redirection back;
5. L2U PS HO U2L Redirection
U2100 (Priority 4)
6.
U2100 U850: PS HO;
7.
G900/G1800 U850/U2100: G2U Reselection;
8.
G1800 G900: PS Reselection.
CLB / PSHO F1/F2
U850 (Priority 3)
BFKT PLMN00 G2U Reselection
TMV PLMN99
G1800 (Priority 0)
G2U Reselection
PS Reselection
TUC PLMN99 HUAWEI TECHNOLOGIES CO., LTD.
G900 (Priority 0) Huawei Confidential
Red: LTE; Orange: UL IRAT; Blue: UMTS; Green: GU IRAT; Pink: GL IRAT; Gray: GSM
Neighbor Relation L1800 (Priority 6) CA/MLB
L1800 (Priority 6)
CA/MLB/PSHO CA/PSHO
PSHO
L2100 (Priority 6) L2U PS HO/CSFB U2L Redirection
L2100 (Priority 6) CA/PSHO PSHO
L900 (Priority 5)
L900 (Priority 5) L2U F1/F2 PS HO U2L Redirection
L2U PSHO/CSFB U2L Redirection
U2100 (Priority 4)
U2100 (Priority 4) CLB / HO F1/F2
Fake Neighbor
3G HO F1
U850 (Priority 3)
U850 (Priority 3) U2G Coverage HO G2U Reselection
G1800 (Priority 0)
G1800 (Priority 0)
CS HO/PS Reselection
G900 (Priority 0) HUAWEI TECHNOLOGIES CO., LTD.
G900 (Priority 0) Huawei Confidential
Red: LTE; Orange: UL IRAT; Blue: UMTS; Green: GU IRAT; Pink: GL IRAT; Gray: GSM
Inter-Frequency Relation L1800 (Priority 6) L2100 (Priority 6)
L900 (Priority 5)
LTE to U850 F1/F2 U850 F1/F2/F3 to LTE
U2100 (Priority 4)
LL: Define the frequency; UU: Add Neighbor instead of inter frequency; UG: Add Neighbor instead of inter frequency; L900G900: Define the frequency; GU: Add Frequency.
U850 (Priority 3) G2U F1/F2
Red: LTE; Orange: UL IRAT; Blue: UMTS; Green: GU IRAT; Pink: GL IRAT; Gray: GSM
G1800 (Priority 0) G900 (Priority 0) HUAWEI TECHNOLOGIES CO., LTD.
Huawei Confidential
Neighbor / Frequency Relation
L1800
All
All
All
CoSector
All
CoSite
N/A
N/A
N/A
L2100
Co-Sector
All
All
CoSector
All
CoSite
N/A
N/A
N/A
L900
All
All
All
N/A*
All
CoSite
N/A
Freq
N/A
U2100
Co-Sector F
Co-Sector F
N/A**
All
All
CoSite
N/A
Co-Site
All
U850 F1
Co-Sector F
Co-Sector F
Co-Sector F
CoSite
All
CoSector
CoSector (SIB11 OFF)
N/A
N/A
U850 F2
Co-Sector F
Co-Sector F
Co-Sector F
N/A
CoSector
All
CoSector
N/A
N/A
U850 F3
Co-Sector F
Co-Sector F
Co-Sector F
N/A
CoSector
CoSector
All
N/A
N/A
G900
N/A
N/A
Fake NB
G2U Freq
G2U Freq
G2U Freq
N/A
All
All
• •
*L900 U2100 Co-sector Frequency configured in the Smart RNO tool; ** U2100 L900 Frequency configured in the Smart RNO tool.
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Carrier Aggregation Strategy
Scell Priority
CA setting •
Pcell = L1800 and L2100
•
Scell priority, L1800=L2100>L900
•
Use adaptive Scell selection based on L2100
frequency priority •
CA activation due to traffic
•
CA deactivation due to traffic and CQI
level.
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L1800
Huawei Confidential
L900
Risks and Concerns
Inter-working strategy during roll out:
The inter-working strategy may need to be modified according roll out status;
Due to RNC Capacity, the U2100/U900 Rehoming is required after new RNC integration;
1.
Without U900:
If not implement MTRF, use different TAC for L900 from L1800 and L2100.
After implement MTRF, use same TAC for 900, 1800 and 2100 but longer call setup time will be observed if CSFB from L900 to U850.
2.
With U900 on air together with L900:
Use same TAC for L900 1800 and 2100
Use same LAC for U2100 and U900 for smooth CSFB
With same PLMN, LAC U2100 and G900 cannot be the same due to limited configuration in CS core.
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True Current UE Capability Analysis
LTE Band vs UMTS 1). L2100 & L1800 UE: less than 0.1% UE not support U2100; 2). L900 UE: 0.6% UE not support U900 (in which 94% support U850). LTE Inter Frequency 1). L2100 and L1800 UE nearly the same, 3% difference; 2). L2100 and L1800 UE: about 24% not support L900; 3). L900 UE: less than 1% not support L1800 or L2100. UMTS Inter Frequency 1). U2100 UE: 33% not support U900, 12% not support U850; 2). U850 UE: 32% not support U900, 2.6% not support U2100; 3). U900 UE: 10% not support U850, 2.6% not support U2100.
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Thank You www. huawei.com
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Huawei Confidential
