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LTE KPIs and Formulae
LTE KPIs and Formulae
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VoLTE Interfaces , Protocols & IMS Stack Explained
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LTE KPIs and Formulae
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VoLTE KPI Performance
VoLTE KPI Performance
Vikas Shokeen
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Karel Berkovec
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Karel Berkovec
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UMTS/LTE/EPC Call Flows for CSFB
UMTS/LTE/EPC Call Flows for CSFB
Justin MA (馬嘉昌)
Nokia kpi and_core_optimization
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debasish goswami
Simplified Call Flow Signaling: Handovers
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3G4G
11 gsm bss network kpi (paging success rate) optimization manual
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tharinduwije
2G / 3G / 4G / IMS / 5G Overview with Focus on Core Network
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Hamidreza Bolhasani
Radio network overview
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Md Mustafizur Rahman
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volte ims network architecture
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Vikas Shokeen
VoLTE Service Monitoring - VoLTE Voice Call
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Jose Gonzalez
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Mobile Networks Overview (2G / 3G / 4G-LTE)
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Nokia kpi and_core_optimization
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11 gsm bss network kpi (paging success rate) optimization manual
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2G / 3G / 4G / IMS / 5G Overview with Focus on Core Network
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Radio network overview
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CS-Core Mobile Network (General)
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volte ims network architecture
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VoLTE Service Monitoring - VoLTE Voice Call
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GPEH, PCHR, CHR, MR, SIG, CTUM, CELL TRACE, UETR Parsers - Innovile
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Power de motocicletas
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ZTE VoLTE Solutions
1.
VoLTE bringing you closer
2.
CONTENTS Why do We
Need LTE Voice Solution Challenge from OTT CSFB VoLTE VoLTE Advantages
3.
© ZTE Corporation.
All rights reserved. Why do We Need LTE Voice Solution? Voice is still the main source of income NO CS network in LTE VoLT E 3 VoLT E SRVCC 2 VoLT E CSFB 1 OTT challenge
4.
4 Secret▲ © ZTE All
rights reserved Verizon: 700M for wide coverage, transition from SvLTE to VoLTE, LTE-only terminal subsidy from 2014 KDDI: LTE 1.5G/2.1G/800M, CSFB, VoLTE (on 800M by KDDI sub-brand au) Sprint: LTE 800/1900, VoLTE beared on 800M, CSFB also deployed China Mobile: CSFB to 900M GSM, VoLTE deployed with SRVCC The Voice Strategies by Top Operators IMS VoLTE CSFB VoLTE +SRVCC CS SvLTE Voice beared on CS Voice beared on IMS
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© ZTE Corporation.
All rights reserved. Challenge from OTT
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© ZTE Corporation.
All rights reserved. OTT is popular now VoIP Video-callings Messaging services 20%+ calls through Skype in USA 40%+ subscribers use Facetime for video calls 4.38 Hundred Million, 71.4% Market Share
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© ZTE Corporation.
All rights reserved. The impact on operator Voice & message 64% Data 36% Voice: 0.3% Message: 20.2% Data: 98.6%
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© ZTE Corporation.
All rights reserved. OTT put great pressure to operators…
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CSFB First step in
LTE era, you just need
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10 Secret▲ © ZTE All
rights reserved CSFB Application Scenario Low LTE terminal penetration rate LTE terminals don’t support VoLTE/SRVCC Low quality requirement Lack of LTE seamless coverage Seamless 2G/3G network CS network doesn’t have capacity bottleneck User CSFB No IMS deployment Operator
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11 Secret▲ © ZTE All
rights reserved What is CSFB? Circuit Switched Fallback (CSFB) MSCs MGW GERAN/UTR AN SAE-GW MME LTE Voice Packet Data Register SGs Voice Packet Data Register CSFB Type Description R8 Re-direction The eNodeB brings 2/3G frequency point in the command RRC ConnectionRelease, and then the UE can set up the CS voice directly in the dedicated frequency point. R9 Re-direction The eNodeB brings 2/3G frequency point and target cell’s SI message in the command RRC ConnectionRelease, and then the UE can set up the CS voice directly in the dedicated frequency point. PS HO LTE switches the UE to the 2/3G for the data bearing, and then the UE initiates the voice in the 2/3G CS domain. CCO without NACC (GSM only) The eNodeB brings GSM frequency point in the command Cell Change Order, and then the UE can set up the CS voice directly in the dedicated frequency point. CCO with NACC (GSM only) The difference is that the NACC (RIM) procedure is added. The eNodeB triggers the NACC procedure to obtain the GERAN system information and store it locally before it determines to initiate the CCO procedure.
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12 Secret▲ © ZTE All
rights reserved Little Impact on the Legacy Network Element Upgrade Requirement MSC Software update. The MSC must support SGs interface. MME (SGSN) Software update. The MME must support the information interaction between SGs and S3 interface. eNodeB Software update. CSFB function should be supported. UE Software update. CSFB function should be supported, such as EPS/IMSI attach, SMS processing, CS paging. Coverage with 2/3G LTE coverage must overlap with 2/3G.
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Here and now you
just need Voice Over LTE VoLTE
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© ZTE Corporation.
All rights reserved. Voice technology development SVLTE CSFB eSRVCC VoLTE 2G/3G LTE 2/3G CS EPC PSTN/PL MN INTERNETT Terminal Voice Data LTE EPC INTERNET Terminal Voice Data IMS 2G/3G LTE 2/3G CS EPC PSTN/PL MN INTERNET Terminal S Gs Voice Data 2G/3G LTE 2/3G CS EPC PSTN/PL MN INTERNET Terminal S v Voice Data IMS No LTE seamless coverage, LTE overlap with 2/3G LTE seamless coverage
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© ZTE Corporation.
All rights reserved. VoLTE solution VoLTE LTE EPC INTERNET Terminal Voice Data IMS LTE seamless coverage Software upgrade on the legacy 2/3G networks Introduce IMS system Very clear HD Voice calling Shortest latency,0.5s+ Hopeful handsets 145+ models released Deployment Experience Ecosystem
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16 Secret▲ © ZTE All
rights reserved SRVCC application scenario SRVCC capable terminals High quality requirement users Simultaneous Voice and data services requirements Lack of LTE seamless coverage Better coverage by 2G/3G network EPC supports the function User SRVCC VoLTE based on IMS already deployed Operator
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17 Secret▲ © ZTE All
rights reserved VoLTE Application Scenario VoLTE capable terminals High quality requirement users Simultaneous Voice and data services requirements LTE continuous coverage IMS deployment Backhaul has low latency User VoLTE CS network has capacity bottleneck Operator
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18 Secret▲ © ZTE All
rights reserved • Converged HLR、EPC HSS IMS HSS LTE Handset LTE Handset SRVCC/eSRVCC HLR/EPCHSS/ IMSHSS LTE CG BSC Iu-PS A CS Mc IMSSv I/S-CSCF SCC AS MMTEL AS • Support SRVCC/eSRVCC trigger • Support relevant features including robust header compression (RoHC), semi-persistent scheduling (SPS),TTI bundling and eSRVCC. • Support Sv interface •Support SRVCC/eSRVCC • Support SRVCC/eSRVCC • Introduce ATCF/ATGW to Anchor in signaling /Media plane • Support Sv interface •Support SRVCC/eSRVCC eMSC MSC serverMGW S/P-GW PCRF P-CSCF/SBC/ATCF/ATGW Functional requirements for VoLTE/eSRVCC MME • Discover P- CSCF/A-SBC •Guarantee QoS by interworking with via the Rx interface eNodeB PS
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© ZTE Corporation.
All rights reserved. VoLTE advantages
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© ZTE Corporation.
All rights reserved. VoLTE advantages Great Capacity, High Efficiency LTE WCDMA GSM 6~7 times than GSM 2 times than WCDMA Save 70% invest!
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© ZTE Corporation.
All rights reserved. VoLTE advantages Highest Experience 2/3G OTT CsFB VoLTE HD-Voice Coding 8K, 300~3400 Hz 8K, 300~3400H z 8K, 300~3400H z 16K, 50~7000Hz MOS 2.3 2.3 2.3 4 Video Coding QCIF, 176*144/ 15fps VGA, 640*480/3 0fps QCIF, 176*144/1 5fps HD, 720p/30fps Call setup time 3-5s >5s,always e failure 5-8s 0.5-2s
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© ZTE Corporation.
All rights reserved. VoLTE advantages All-IP architecture PS BSC DataVoice CS NodeB IMS EPS eNodeB Voice+ RCS Data 2/3G 4G
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© ZTE Corporation.
All rights reserved. VoLTE advantages Lower Resource usage Skype occupies 13 times more throughput than VoLTE Battery life is 56%~89% longer when using VoLTE than Skype
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© ZTE Corporation.
All rights reserved. Who can provide the most satisfactory user experience? 1 2 3 4 5 QoS measures in place Handover mechanism to the circuit-switched network Interoperability between different OTT services and devices Guaranteed emergency support measure Strong security measures.
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© ZTE Corporation.
All rights reserved. ZTE Voice Solution End to end solution Powerful customization Deployment experience • Providing all LTE network elements • No IOT testing is needed with voice solutions • Short time to market and cost saving • Customized devices • Customized features • Customized equipments • CMCC, CMHK, Softbank, CSL etc. • Helping operators to enhance the deployment efficiency.
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© ZTE Corporation.
All rights reserved. ZTE VoLTE ,bringing you closer