Kamakshi Sridhar, PhD Distinguished Member of Technical Staff Director Wireless CTO organization
|
|
- Felix Basil Pierce
- 8 years ago
- Views:
Transcription
1 Introduction to Evolved Packet Core (EPC): EPC Elements, protocols and procedures Kamakshi Sridhar, PhD Distinguished Member of Technical Staff Director Wireless CTO organization August 2012
2 Agenda 1. Introduction to Evolved Packet Core (EPC) and Evolved Packet System (EPS) 2. LTE and all-ip: What is new? 3. EPC components Serving Gateway (), PDN Gateway (PGW) Mobility Management Entity (), Policy and Charging Control Function (PCRF) 4. LTE core functions and service procedures Core network functions Network attachment, service requests, paging, IP addressing, handover
3 1 Introduction to Evolved Packet Core and Evolved Packet System 3 Technical Sales Forum May 2008
4 LTE: All-IP, simplified network architecture LTE+EPC IP channel Evolved Packet Core (All-IP) Transport (backhaul and backbone) What is EPC? New, all-ip mobile core network introduced with LTE End-to-end IP (All-IP) Clear delineation of control plane and data plane Simplified architecture: flat-ip architecture with a single core EPC was previously called SAE (System Architecture Evolution) enodeb is also called E-UTRAN Evolved Packet System = EPC + E-UTRAN The EPC is a multi-access core network based on the Internet Protocol (IP) that enables operators to deploy and operate one common packet core network for 3GPP radio access (LTE, 3G, and 2G), non-3gpp radio access (HRPD, WLAN, and WiMAX), and fixed access (Ethernet, DSL, cable, and fiber). The EPC is defined around the three important paradigms of mobility, policy management, and security. Source: IEEE Communications Magazine V47 N2 February 2009 REF: 4 Introduction to EPC July 2010 v6
5 Mobile core in 2G/3G 5 Introduction to EPC July 2010 v6
6 2 LTE and EPC what is new? 7 Technical Sales Forum May 2008
7 EPC: new all-ip core, new network elements (functions) 2G/3G GSM GPRS EDGE UMTS HSPA Voice Channels IP channel BTS Node B BSC / RNC MSC SGSN Softswitch GMSC Circuit Switched Core (Voice) Packet Switched Core MGW GGSN PSTN Other mobile networks Internet VPN EPC elements Serving Gateway () Packet Data Network (PDN) Gateway (PGW) Mobility Management Element () Policy and Charging Rules Function (PCRF) LTE/EPC IP channel PCRF Evolved Packet Core PDN GW 8 Introduction to EPC July 2010 v6
8 EPC elements LTE/EPC IP channel PCRF Evolved Packet Core PDN GW EPC elements Serving Gateway Serving a large number of enodebs, focus on scalability and security Packet Data Network (PDN) Gateway IP management ( IP anchor ), connection to external data networks; focus on highly scalable data connectivity and QoS enforcement Mobility Management Element () Control-plane element, responsible for high volume mobility management and connection management (thousands of enodebs) Policy and Charging Rules Function (PCRF) Network-wide control of flows: detection, gating, QoS and flow-based charging, authorizes network-wide use of QoS resources (manages millions on service data flows) 9 Introduction to EPC July 2010 v6
9 USER PLANE (UP) LTE + EPC elements and interfaces CONTROL PLANE (CP) S6a HSS S1- S11 S10 PCRF Gx Rx External networks Operator Services Applications IMS X2 enodeb S1-U S1-U S5/S8 PGW SGi Internet ACPs UE enodeb EPC IP connectivity layer (Evolved Packet System) = E-UTRAN + EPC Service Connectivity Layer 10 Introduction to EPC July 2010 v6
10 Flat IP = less hierarchy means lower latency GSM UMTS CDMA control plane RNC BSC SGSN PDSN GGSN HA Node B BTS data plane direct tunnel RNC BSC SGSN PDSN GGSN HA LTE control plane S/P GW data plane PGW 11 Introduction to EPC July 2010 v6
11 Key implications on user plane (UP) and control plane (CP) User plane has many common attributes with fixed broadband Broadband capacity QoS for multi-service delivery Per-user and per-application policies Highly available network elements Control plane gets new mobile-specific attributes Mobility across networks (and operator domains) Distributed mobility management Massive increase in scalability Dynamic policy management BSC SGSN/GGSN RNC SGSN/GGSN GSM/GPRS/EDGE WCDMA/HSPA RNC PDSN CDMA/EV-DO Service Delivery Platforms LTE IP channel PCRF Evolved Packet Core PDN GW 12 Introduction to EPC July 2010 v6
12 Quick Reference: Overview of EPC components and functionality enodeb: all radio access functions Radio admission control Scheduling of UL and DL data Scheduling and transmission of paging and system broadcast IP header compression (PDCP) Outer-ARQ (RLC) enb Inter Cell RRM RB Control Connection Mobility Cont. Radio Admission Control enb Measurement Configuration & Provision Dynamic Resource Allocation (Scheduler) RRC PDCP RLC MAC PHY S1 S-GW NAS Security Idle State Mobility Handling EPS Bearer Control Mobility Anchoring P-GW PCRF Policy Decisions UE IP address allocation Packet Filtering Policy, Charging & Rules Function Network control of Service Data Flow (SDF) detection, gating, QoS & flow based charging Dynamic policy decision on service data flow treatment in the PCEF (xgw) Authorizes QoS resources PDN Gateway IP anchor point for bearers UE IP address allocation Per-user based packet filtering Connectivity to packet data network internet E-UTRAN EPC Mobility Management Entity Authentication Tracking area list management Idle mode UE reachability S-GW/PDN-GW selection Inter core network node signaling for mobility between 2G/3G and LTE Bearer management functions Serving Gateway Local mobility anchor for inter-enb handovers Mobility anchoring for inter-3gpp handovers Idle mode DL packet buffering Lawful interception Packet routing and forwarding 13 Introduction to EPC July 2010 v6
13 All-IP mobile transformation 2G/3G Backhaul (TDM/ATM) CS Core PS Core Node B BTS BS RNC SGSN PDSN GGSN HA LTE Radio intelligence moving to enodeb Backhaul transition to IP/Ethernet RNC bearer mobility evolves to the RNC control distributed into the /enb MSC voice and packet data switching evolve into the Packet data control evolves into the CS and PS evolve into a unified all-ip domain Best effort to e2e QoS Internet browsing to Web 2.0+ enodeb Backhaul (IP/Ethernet) Service and mobile aware all-ip network Evolved Packet Core PCRF PDN GW 14 Introduction to EPC July 2010 v6
14 LTE: more than an evolution for the packet core Voice Broadband services Multisession data QoS Existing paradigm (3G) Circuit switched (CS) Best effort, Limited expensive broadband - Rudimentary in 3G (none in 2G/2.5G) - On request - Driven by UE -Control-plane intensive setup - theory: up to 8 CoS, practice: 2 4 (voice/control, best effort data) LTE No (CS) core in LTE - e2e IP: VoIP (IMS), OneVoice - Through EPC: OTT, SR-VCC -Alternatives: CS fallback, VOLGA Real-time, interactive, low latency, true broadband QoS Based on service data flows (IP flows) - user-initiated sessions - network-initiated sessions -Driven by policy management, not UE -Faster setup through EPC --9 QoS classes - End-to-end, associated with bearers Policy Management - PCRF introduced in 3GPP R7 - Not widely adopted (static policy mgt used) Network-wide, dynamic policy charging and control (PCC) Mobility Management - Historically very much aligned (part of) with RAN - no RNCs - radio mgt. by enodeb - Mobility and session management important functions of the core 15 Introduction to EPC July 2010 v6
15 Example of UMTS QoS mapping to IP (transport perspective) Mapping UMTS traffic types to IP QoS (DiffServ Code Points) Conversational Streaming Interactive Background End-to-end QoS in UMTS 16 Introduction to EPC July 2010 v6
16 Flat-IP also implies need for a sound QoS mechanism Dedicated radio resource allocation per user TDM CS IP PS 2G/R99 3G Access CS resources By nature, 2G and Rel99 3G legacy network architecture provides dedicated CS resources ensuring: PS resources Low latency (optimized for voice service) A guaranteed bit rate for the whole duration of the CS call (even in case of congestion) Shared radio resource allocation for all users TDM IMS EPC IP LTE (and HSPA) Shared resources Without QoS control in flat-ip mobile networks, the end-user would experience (e.g. for voice/video service): High latency when cell/network is congested High voice packet loss when cell/network is congested Degraded perception for the end-user QoS control becomes mandatory to offer real-time services (Voice, Video or Gaming) over flat-ip mobile networks 17 Introduction to EPC July 2010 v6
17 LTE QoS terms Service Data Flow = IP flow SDFs are mapped to bearers by IP routing elements (gateways) QoS Class Identifier (QCI) A scalar that is used as a reference to node specific parameters that control packet forwarding treatment (e.g., scheduling weights, admission thresholds, queue management thresholds, link layer protocol configuration, etc.), and that have been pre-configured by the operator owning the access node Allocation and Retention Priority (ARP) The primary purpose or ARP is to decide if a bearer establishment/modification request can be accepted or rejected in case or resource limitation Guaranteed Bit Rate (GBR) Maximum Bit Rate (MBR) Aggregate Maximum Bit Rate (AMBR) (for non-gbr bearers) QCI + ARP + GBR + MBR + AMBR bearers 18 Introduction to EPC July 2010 v6
18 LTE QCI (QoS Class Identifier), as defined by 3GPP TS From: 4 classes in UMTS and CDMA to: 9 classes in LTE One of LTE standards goals: backward compatibility with UMTS QoS QCI Resource Type Priority Packet Delay Budget Packet Error Loss Rate Example Services ms 10-2 Conversational voice 2 Guaranteed ms 10-3 Conversational video (live streaming) 3 Bit Rate 3 50 ms 10-3 Real-time gaming (GBR) ms 10-6 Non-conversational video (buffered streaming) ms 10-6 IMS signalling ms 10-6 TCP-based (e.g., www, , chat, ftp, p2p file sharing, progressive video, etc.) Video (buffered streaming) ms 10-3 Voice, video (live streaming), interactive Non-GBR gaming ms ms 10-6 Premium bearer for video (buffered streaming), TCP-based (e.g., www, , chat, ftp, p2p file sharing, progressive video, etc) for premium subscribers Default bearer for video, TCP-based services, etc. for non-privileged subscribers 19 Introduction to EPC July 2010 v6
19 EPC bearer management Data plane needs to support fine-granularity of QoS and charging enforcement functions beyond transport / bearer level Uplink (UL) and Downlink (DL) packet filters are defined for each bearer and QoS enforcements (policing, shaping, scheduling, etc.) are applied PGW acts as the Policy and Charging Enforcement Function (PCEF) point to maintain QoS / SLA for each of the bearers (and SDFs) E-UTRAN EPC Internet UE enodeb PGW peer End-to-end service EPS bearer External bearer Radio bearer S1 bearer S5/S8 bearer LTE-Uu S1 S5/S8 SGi 20 Introduction to EPC July 2010 v6
20 3 EPC elements 21 Technical Sales Forum May 2008
21 enodeb (E-UTRAN) (not a part of the EPC), but let s look at Interactions with other functional elements USER PLANE (UP) CONTROL PLANE (CP) Pool of s Pool of s Mobility Management Bearer handling Security settings User plane tunnels for UL and DL data delivery Radio Resource Management Mobility management Bearer handling User plane data delivery Securing and optimizing radio interface delivery Inter enodeb handovers Forwarding of DL data during handovers User Equipment UE Other enodebs 22 Introduction to EPC July 2010 v6
22 Mobility Management Entity controls how UE interacts with the network via non-access stratum (NAS) signalling Authenticates UEs and controls access to network connections Controls attributes of established access (e.g., assignment of network resources) Maintains EPS Mobility Management (EMM) states for all UE s to support paging, roaming and handover Manages ECM (EPS Connection Management) states IP channel PCRF Evolved Packet Core PDN GW is control plane element that manages network access and mobility 23 Introduction to EPC July 2010 v6
23 : Interactions with other functional elements USER PLANE (UP) CONTROL PLANE (CP) Other s Handovers between s Idle state mobility between s HSS Authentication and Security Location management User profiles s Control of user plane tunnels Inter enodeb handovers State transitions Bearer management Paging User Equipment UE Other enodebs 24 Introduction to EPC July 2010 v6
24 Serving Gateway and Packet Data Network (PDN) Gateway is local mobility anchor Terminates (S1-U) interface towards E-UTRAN Local anchor point for inter-enb handover and inter-3gpp mobility Support ECM-idle mode DL packet buffering and network-initiated service request IP routing and forwarding functions PGW is IP anchor for bearers Terminates (SGi) interface towards the PDN Provides UE IP address management (allocation) Provide Policy and Charging Enforcement Function (PCEF) Per-SDF based packet filtering Interface to Online and Offline Charging Systems IP channel PCRF Evolved Packet Core PDN GW 25 Introduction to EPC July 2010 v6
25 : Interactions with other functional elements USER PLANE (UP) CONTROL PLANE (CP) s PCRF Control of GTP tunnels and IP service flows Mobility control PCRF PMIP S5/S8 IP service flow <-> GTP tunnel mapping information PGW PGW PGWs GTP S5/S8 Control of GTP tunnels GTP tunnels for UL and DL data delivery PMIP IP service flows User Plane tunnels for DL and UL data delivery Indirect forwarding of DL data during handovers (in S1-U) when direct (X2) inter-enodeb connection is not available enodebs Other s 26 Introduction to EPC July 2010 v6
26 PGW: Interactions with other functional elements USER PLANE (UP) CONTROL PLANE (CP) PCRFs PCRF Policy and Charging Control requests PCC rules External networks IP flows of user data PGW Control of User Plane tunnels UP tunnels for UL and DL data delivery Online Charging Systems s Offline Charging Systems 27 Introduction to EPC July 2010 v6
27 End-to-end protocol stack (User Plane) IP channel PCRF PDN GW applications Evolved Packet Core services user traffic = end-to-end IP IP RELAY RELAY IP PDCP PDCP GTP-U GTP-U GTP-U GTP-U RLC RLC UDP/IP UDP/IP UDP/IP UDP/IP MAC MAC L2 L2 L2 L2 L1 LTE-Uu L1 L1 S1-U L1 L1 S5/S8 L1 SGi UE enodeb PGW * S5/S8 reference point between S-GW and PDN-GW can also be GTP based Key role of S-GWs and PDN-GWs = to manage the user plane (bearer traffic) 28 Introduction to EPC July 2010 v6
28 PCRF: Interactions with other functional elements USER PLANE (UP) CONTROL PLANE (CP) AF External networks Policy and Charging Control requests PCRF Policy and Charging Control requests PCC rules QoS rules when S5/S8 is PMIP s QoS rules when S5/S8 is PMIP QoS rules for mapping IP service flows and GTP tunnel in S1 when S5/S8 is PMIP PGW PGW PGWs 29 Introduction to EPC July 2010 v6
29 Policy Charging and Control (PCC) Architecture SPR Sp PCRF Rx AF Gxx Gx Gy OCS SDF-based credit control BBERF PCEF PGW Gz OFCS BBERF = Bearer Binding and Event Reporting Function OCS = Online Charging System OFCS = Offline Charging System PCEF = Policy and Charging Enforcement Function SPR = Subscription Profile repository 30 Introduction to EPC July 2010 v6
30 Service level policy control Service Data Flow (SDF) Packet filters QoS parameter: QCI, Guaranteed bit rate (UL/DL), Maximum bit rate (UL/DL), Aggregate maximum bit rate UE PDN-GW SDF-1 Default bearer SDF-2 Dedicated bearer (GBR) SDF-3 IP-Connectivity Access Network Session The PGW needs to support fine-granularity of QoS and charging enforcement functions beyond transport / bearer level Multiple Service Data Flow (SDF) can be aggregated onto a single EPS bearer Uplink and downlink packet filters are defined for each bearer, and QoS enforcements are applied 31 Introduction to EPC July 2010 v6
31 4 Core procedures 32 Technical Sales Forum May 2008
32 EPC: Core functions and service procedures Core Functions Core Procedures Charging Network attachment Subscriber management Service requests (paging, buffering) Mobility management (new!) Handovers and (X2 routing) Bearer management Roaming (home/visiting PDN breakout) Policy management (new!) Interconnection Interworking with 3GPP ANs Interworking with non 3GPP ANs (EVDO/EHRPD treated as a special case) 33 Introduction to EPC July 2010 v6
33 Roaming breakout through home PDN HPLMN VPLMN HSS S6a PDN Gateway Gx H-PCRF SGi Rx Home Operator s IP Services UTRAN SGSN GERAN S3 S8a X2 S1- S11 S4 S12 E-UTRAN S1-U Serving Gateway 35 Introduction to EPC July 2010 v6
34 Roaming local breakout (through visiting PDN) HSS H-PCRF Rx Home Operator s IP Services HPLMN VPLMN S6a UTRAN S9 SGSN GERAN S3 V-PCRF Gx X2 S1- S11 S4 S12 eutran E-UTRAN S1-U Serving Gateway S5 PDN Gateway SGi IP Network 36 Introduction to EPC July 2010 v6
35 Network attachment and IP address assignment PCRF S7c S7 Always-on IP connection is established and anchored at PDN-GW X2 S1- S11 SGi IP Network E-UTRAN S1-U Serving Gateway S5 PDN Gateway IPv4 direct IP address assignment IPv6 shorter IP IPv4 via DHCP (after) IPv6 IPv6 /64 stateless 37 Introduction to EPC July 2010 v6
36 UE and service requests PCRF 1. UE sends NAS Service Request message towards S7c S7 2. Update Bearer Request is sent to the S-GW to establish/modify S1-bearer 3. Dedicated bearer established after interaction with PCRF X2 S1- S11 E-UTRAN S1-U Serving Gateway S5 PDN Gateway SGi IP Network 38 Introduction to EPC July 2010 v6
37 Handover and X2 routing PCRF enb X2-AP enb X2-AP enb GTP-U enb GTP-U SCTP SCTP UDP UDP S7c S7 IP L2 IP L2 IP L2 IP L2 L1 X2-C L1 L1 L1 X2-U X2 S1- S11 X2 protocol stacks E-UTRAN S1-U Serving Gateway S5 PDN Gateway SGi IP Network X2 = active mode mobility - User Plane (UP) ensures lossless mobility - Control Plane (CP) provides enb relocation capability 39 Introduction to EPC July 2010 v6
38 4a SMS and legacy voice 40 Technical Sales Forum May 2008
39 SMS service for initial data-only devices GERAN UTRAN MSC CS Network SMS-C SGSN New interface SGs from MSC to E-UTRAN PDN PGW Data Paging/SMS Data and SMS only Handset uses LTE network where possible to achieve highest throughput Handset served by an MSC in legacy network for voice and SMS SMS delivered over SGs without requiring inter-rat handover 41 Introduction to EPC July 2010 v6
40 Voice support using CS Fallback (CSFB) GERAN UTRAN MSC New interface SGs from MSC to CS Network GERAN UTRAN MSC CS Network SGSN SGSN E-UTRAN E-UTRAN PDN PDN PGW Data Paging/SMS PGW Circuit Voice Data Simultaneous Voice + Data Handset falls back to legacy circuit coverage for voice Incoming calls to MSC trigger paging over SGs and delivered via Data sessions handover to SGSN if possible Tradeoff: Re-uses legacy circuit infrastructure But at the cost of Inter-RAT handover per voice call, and reduced capacity (3G) or suspended (2G) data sessions 42 Introduction to EPC July 2010 v6
41 Voice via IMS GERAN UTRAN E-UTRAN MSC SGSN PGW CS Network 2 3 IMS TAS PDN SCC AS 1 Simultaneous Voice and Data on LTE Handset has concurrent access to: 1. Data services including internet access 2. IMS Services including VoIP end-end calling 3. IMS interworking towards legacy PSTN/PLMN networks Uses IMS nodes Telephony Application Server (TAS) and Service Centralization and Continuity Application Server (SCC AS) GERAN UTRAN E-UTRAN MSC SGSN PGW 2 CS Network IMS TAS PDN 3 1 SCC AS IMS Services outside of LTE coverage For service transparency, IMS Centralized Services (ICS) provides IMS services even when the handset is out of LTE coverage Handset has concurrent access to: 1. Data Services including internet access 2. IMS Services including circuit-mode transport of voice path 3. Calls to-from the PSTN/PLMN legacy network as well as calls to VoIP end users in IMS Circuit Voice Circuit signaling Packet Voice IMS Signaling Packet Data 43 Introduction to EPC July 2010 v6
42 Alcatel-Lucent EPC Solution 8650 SDM HSS X2 UTRAN GERAN 9326 enb 7500 SGSN S S1- S6a S11 S4 S DSC (PCRF) S12 Gxc 9271 ernc Gn Gp Gx CDMA/EVDO H 8615 IeCCF OFCS 8610 Rf Ro ICC OCS S2a Data Plane Control Plane AFs UE 9326 enb eutran S1-U 7750 SR Serving Gateway S5/S SR PDN Gateway SGi IP Network End-to-end IP management (incl. services) 5620 SAM 44 Introduction to EPC July 2010 v6
43 User Plane Scalability First mobile gateway to deliver over 100 Gbps Full UP and CP Management Full GUI management of bearers (UP and CP) Deployment Flexibility As, PGW/GGSN or combo Deployment Universality e2e wireless IP management: RAN, core and backhaul Performance/QoS Per-UE, per-app, per-flow hierarchical QoS Integration in OSS/BSS Part of full NM portfolio Full OSS/BSS integration Reliability % field proven 48,000+ units shipped 7750 Service Router-based Architecture Optimized split of router and gateway functions 7750 Service Router Mobile Gateway 5620 SAM Service Aware Manager Alcatel-Lucent Ultimate Wireless Packet Core Reliability Geo-redundancy Scalability/Architecture Suited for Tier X to Tier1 operator environments Control Plane Scalability Millions of subscribers Thousands of enodebs Deployment Flexibility As SGSN, or SGSN/ combo Mobile Core Business Engine Policy Convergence Monetization and Personalization Deployment Agility Flexi rules engine with wizards Up and running in minutes Add new rules easily Performance Superior paging capabilities High-signallng loads Reliability Geo-redundancy, pooling No single point of failure 9471 Wireless Mobility Manager 5780 Dynamic Services Controller Integration with NM Part of full NM portfolio Same NM/GUI paradigm Reliability Geo-redundancy No single point of failure Platform/Architecture ATCAv2 platform for all CP functions Platform/Architecture ATCAv2 platform for all CP functions
44
SAE and Evolved Packet Core
SAE and Evolved Packet Core Farooq Bari Seattle Communications (COM-19) Society Chapter Nov. 13, 2008 1 SAE/EPS Background Around 2005, 3GPP RAN groups initiated the LTE work and in parallel the SAE work
More information3GPP Long Term Evolution: Architecture, Protocols and Interfaces
3GPP Long Term Evolution: Architecture, Protocols and Interfaces Aderemi A. Atayero, Matthew K. Luka, Martha K. Orya, Juliet O. Iruemi Department of Electrical & Information Engineering Covenant University,
More informationDiameter in the Evolved Packet Core
Diameter in the Evolved Packet Core A Whitepaper November 2009 Page 2 DIAMETER in the Evolved Packet Core Mobile broadband is becoming a reality, as the Internet generation grows accustomed to having broadband
More informationMigration to LTE: Infrastructure Impact. Maria E. Palamara Director CDMA-LTE Strategy Alcatel-Lucent January, 2009
Migration to LTE: Infrastructure Impact Maria E. Palamara Director CDMA-LTE Strategy Alcatel-Lucent January, 2009 LTE to ehpd/hpd Interworking ehpd Internet Intranet IMS AT: Access Terminal enc: Enhanced
More informationThe LTE Network Architecture
S T R A T E G I C W H I T E P A P E R The LTE Network Architecture A comprehensive tutorial Long Term Evolution (LTE) is the latest buzzword on everyone s lips, but are you as conversant with the LTE architecture
More informationIntroduction to Evolved Packet Core
S T R A T E G I C W H I T E P A P E R Introduction to Evolved Packet Core This white paper provides a brief introduction to Evolved Packet Core a new mobile core for LTE. Herein, key concepts and functional
More informationLong-Term Evolution. Mobile Telecommunications Networks WMNet Lab
Long-Term Evolution Mobile Telecommunications Networks WMNet Lab Background Long-Term Evolution Define a new packet-only wideband radio with flat architecture as part of 3GPP radio technology family 2004:
More informationArchitecture Overview NCHU CSE LTE - 1
Architecture Overview NCHU CSE LTE - 1 System Architecture Evolution (SAE) Packet core networks are also evolving to the flat System Architecture Evolution (SAE) architecture. This new architecture optimizes
More informationLTE Overview October 6, 2011
LTE Overview October 6, 2011 Robert Barringer Enterprise Architect AT&T Proprietary (Internal Use Only) Not for use or disclosure outside the AT&T companies except under written agreement LTE Long Term
More informationVoice over IP over LTE (VoLTE) Impacts on LTE access. EFORT http://www.efort.com
1 Introduction Voice over IP over LTE (VoLTE) Impacts on LTE access EFORT http://www.efort.com IMS (IP Multimedia Subsystems) has been around for some time, and many infrastructure vendors have invested
More informationIP Multimedia System: general aspects and migration perspectives
IMS TPC EPC IP Multimedia System: general aspects and migration perspectives Dr. Leo Lehmann Federal Office of Communication, Switzerland ITU Workshop on Developments regarding telecommunication network
More informationSingle Radio Voice Call Continuity. (SRVCC) with LTE. White Paper. Overview. By: Shwetha Vittal, Lead Engineer CONTENTS
White Paper Single Radio Voice Call Continuity (SRVCC) with LTE By: Shwetha Vittal, Lead Engineer Overview Long Term Evolution (LTE) is heralded as the next big thing for mobile networks. It brings in
More informationMobile IPv6 deployment opportunities in next generation 3GPP networks. I. Guardini E. Demaria M. La Monaca
Mobile IPv6 deployment opportunities in next generation 3GPP networks I. Guardini E. Demaria M. La Monaca Overview of SAE/LTE Terminology SAE (System Architecture Evolution): core network/system aspects
More informationOverview of the Evolved packet core network
UNIVERSITY OF ALBERTA Overview of the Evolved packet core network Project report submitted to the Faculty of graduate studies and research University of Alberta In partial fulfillment of the requirements
More informationTechnical white paper. Enabling mobile broadband growth Evolved Packet Core
Technical white paper Enabling mobile broadband growth Evolved Packet Core Contents 3 Enabling mobile broadband growth 4 Enabling migration from current networks to LTE 4 Terminology 5 The demand for cost-effective
More informationDelivery of Voice and Text Messages over LTE
Delivery of Voice and Text Messages over LTE 1. The Market for Voice and SMS! 2. Third Party Voice over IP! 3. The IP Multimedia Subsystem! 4. Circuit Switched Fallback! 5. VoLGA LTE was designed as a
More informationEvolution of the 3GPP Network Architecture, (the Evolved Packet Core)
Evolution of the 3GPP Network Architecture, (the Evolved Packet Core) Dr. Sungho Choi Vice Chairman of 3GPP TSG SA 1 Peak Data Rate (bps) DL/UL Air Interface Technology Evolution OFDMA 300M/75M Rel. 8
More informationTelecommunication Services Engineering (TSE) Lab. Chapter III 4G Long Term Evolution (LTE) and Evolved Packet Core (EPC)
Chapter III 4G Long Term Evolution (LTE) and Evolved Packet Core (EPC) http://users.encs.concordia.ca/~glitho/ Outline 1. LTE 2. EPC architectures (Basic and advanced) 3. Mobility management in EPC 4.
More informationLTE CDMA Interworking
LTE CDMA Interworking ehrpd - Use of a Common Core and a Stepping Stone to LTE Mike Dolan Consulting Member of Technical Staff Alcatel-Lucent Overview ehrpd (evolved High Rate Packet Data*) ehrpd involves
More informationPriority, Pre-Emption, and Quality of Service
Priority, Pre-Emption, and Quality of Service http://www.pscr.gov Public Safety Communications Research Program Department of Commerce Boulder Labs Presentation by: Tracy McElvaney Electronics Engineer
More informationWHITE PAPER. Authoritative Guide to Advanced LTE Testing
WHITE PAPER Authoritative Guide to Advanced LTE Testing 26601 Agoura Road, Calabasas, CA 91302 Tel: 818.871.1800 Fax: 818.871.1805 www.ixiacom.com 915-3102-01 Rev. A, August 2013 2 Table of Contents Introduction...
More informationIP-based Mobility Management for a Distributed Radio Access Network Architecture. helmut.becker@siemens.com
IP-based Mobility Management for a Distributed Radio Access Network Architecture helmut.becker@siemens.com Outline - Definition IP-based Mobility Management for a Distributed RAN Architecture Page 2 Siemens
More informationPractical Security Testing for LTE Networks BlackHat Abu Dhabi December 2012 Martyn Ruks & Nils
Practical Security Testing for LTE Networks BlackHat Abu Dhabi December 2012 Martyn Ruks & Nils 06/11/2012 1 Today s Talk Intro to LTE Networks Technical Details Attacks and Testing Defences Conclusions
More informationVoice over LTE Telephony on the National Public Safety Broadband Network
Voice over LTE Telephony on the National Public Safety Broadband Network Brian Kassa Head of Technology June 5 th, 2013 1 Nokia Siemens Networks Agenda VoLTE Overview What is VoLTE VoLTE for FirstNet 2
More informationSecurity Testing 4G (LTE) Networks 44con 6th September 2012 Martyn Ruks & Nils
Security Testing 4G (LTE) Networks 44con 6th September 2012 Martyn Ruks & Nils 11/09/2012 1 Today s Talk Intro to 4G (LTE) Networks Technical Details Attacks and Testing Defences Conclusions 11/09/2012
More informationApplying Software Defined Networks and Virtualization Concepts for Next Generation Mobile Broadband Networks
BROADBAND UKRAINE: 12th June 2013, Kiev, Ukraine FOKUS Center for Next Generation Network Infrastructures (NGNI) Applying Software Defined Networks and Virtualization Concepts for Next Generation Mobile
More information3GPP System Architecture Evolution. ATIS LTE Conference January 26, 2009. 3GPP TSG SA Chairman Stephen Hayes
3GPP System Architecture Evolution ATIS LTE Conference January 26, 2009 3GPP TSG SA Chairman Stephen Hayes 1 3GPP Directions FASTER Faster Data rates Decreased Latency High Cell Edge Throughput Spectrum
More informationTelesystem Innovations. LTE in a Nutshell: Protocol Architecture WHITE PAPER
Telesystem Innovations LTE in a Nutshell: Protocol Architecture WHITE PAPER PROTOCOL OVERVIEW This whitepaper presents an overview of the protocol stack for LTE with the intent to describe where important
More informationAlcatel-Lucent Evolved Packet Core Solution:
T E C H N O L O G Y W H I T E P A P E R Alcatel-Lucent Evolved Packet Core Solution: Delivering technical innovation for the new LTE mobile core This white paper provides an overview of Alcatel-Lucent
More informationALCATEL-LUCENT 7750 SERVICE ROUTER NEXT-GENERATION MOBILE GATEWAY FOR LTE/4G AND 2G/3G AND ANCHOR FOR CELLULAR-WI-FI CONVERGENCE
ALCATEL-LUCENT 7750 SERVICE ROUTER NEXT-GENERATION MOBILE GATEWAY FOR LTE/4G AND 2G/3G AND ANCHOR FOR CELLULAR-WI-FI CONVERGENCE The is a next generation mobile packet core data plane platform that supports
More informationTrends in Mobile Network Architectures 3GPP LTE Mobile WiMAX Next Generation Mobile Networks Dr.-Ing. Michael Schopp, Siemens Networks
Trends in Mobile Network Architectures 3GPP LTE Mobile WiMAX Next Generation Mobile Networks Dr.-Ing. Michael Schopp, Siemens Networks Outline 1 Next Generation Mobile Networks 2 New Radio Access Network
More informationProtocol Signaling Procedures in LTE
White Paper Protocol Signaling Procedures in LTE By: V. Srinivasa Rao, Senior Architect & Rambabu Gajula, Lead Engineer Overview The exploding growth of the internet and associated services has fueled
More informationNokia Siemens Networks Flexi Network Server
Nokia Siemens Networks Flexi Network Server Ushering network control into the LTE era 1. Moving towards LTE Rapidly increasing data volumes in mobile networks, pressure to reduce the cost per transmitted
More informationComparison of LTE and WiMAX on the Basis of Qualities
Comparison of LTE and WiMAX on the Basis of Qualities Poonam M.Bhagat, Prasad S.Halgaonkar, Vijay M.Wadhai Department of Computer Engg, MITCOE- Pune University, India Department of Computer Engg, MITCOE-
More informationNokia Siemens Networks Flexi Network Gateway. Brochure
Nokia Siemens Networks Flexi Network Gateway Prepare for Mobile Broadband Growth Brochure. 2/14 Brochure Table of Content 1. Towards the flat all-ip Network... 3 2. Preparing the Gateway for Mobile Broadband
More informationUMTS/GPRS system overview from an IP addressing perspective. David Kessens Jonne Soininen
UMTS/GPRS system overview from an IP addressing perspective David Kessens Jonne Soininen Introduction 1) Introduction to 3GPP networks (GPRS, UMTS) Technical overview and concepts for 3GPP networks Mobility
More informationLTE Performance and Analysis using Atoll Simulation
IOSR Journal of Electrical and Electronics Engineering (IOSR-JEEE) e-issn: 2278-1676,p-ISSN: 2320-3331, Volume 9, Issue 6 Ver. III (Nov Dec. 2014), PP 68-72 LTE Performance and Analysis using Atoll Simulation
More informationStudy of Long Term Evolution Network, its Architecture along with its Interfaces
International Journal of Current Engineering and Technology E-ISSN 2277 4106, P-ISSN 2347 5161 2015 INPRESSCO, All Rights Reserved Available at http://inpressco.com/category/ijcet Research Article Study
More informationChapter 2 Network Architecture and Protocols
Chapter 2 Network Architecture and Protocols The Third Generation Partnership Project (3GPP) Long-Term Evolution/System Architecture Evolution (LTE/SAE) seeks to take mobile technology to the next level
More informationThe future of mobile networking. David Kessens <david.kessens@nsn.com>
The future of mobile networking David Kessens Introduction Current technologies Some real world measurements LTE New wireless technologies Conclusion 2 The future of mobile networking
More informationNTT DOCOMO Technical Journal. Core Network Infrastructure and Congestion Control Technology for M2M Communications
M2M 3GPP Standardization Further Development of LTE/LTE-Advanced LTE Release 10/11 Standardization Trends Core Network Infrastructure and Congestion Control Technology for M2M Communications The number
More informationHow to deal with a thousand nodes: M2M communication over cellular networks. A. Maeder NEC Laboratories Europe andreas.maeder@neclab.
How to deal with a thousand nodes: M2M communication over cellular networks A. Maeder NEC Laboratories Europe andreas.maeder@neclab.eu Outline Introduction to M2M communications The M2M use case landscape
More informationLeader in Converged IP Testing. Wireless Network Testing
Leader in Converged IP Testing Wireless Network Testing 915-2623-01 Rev A January, 2010 2 Contents The Progression of Wireless Technologies...4 Wireless Testing Requirements...7 LTE Testing...8 Evolved
More informationSERVICE CONTINUITY. Ensuring voice service
SERVICE CONTINUITY FOR TODAY S Voice over LTE SUBSCRIBERS Ensuring voice service with Single Radio Voice Call Continuity (SR-VCC) TECHNOLOGY White Paper Subscribers expectations for mobile data services
More informationLTE Mobility Enhancements
Qualcomm Incorporated February 2010 Table of Contents [1] Introduction... 1 [2] LTE Release 8 Handover Procedures... 2 2.1 Backward Handover... 2 2.2 RLF Handover... 3 2.3 NAS Recovery... 5 [3] LTE Forward
More informationOptimization Handoff in Mobility Management for the Integrated Macrocell - Femtocell LTE Network
Optimization Handoff in Mobility Management for the Integrated Macrocell - Femtocell LTE Network Ms.Hetal Surti PG Student, Electronics & Communication PIT, Vadodara E-mail Id:surtihetal99@gmail.com Mr.Ketan
More informationVad betyder 4G-utvecklingen för Stadsnäten?
Vad betyder 4G-utvecklingen för Stadsnäten? Niclas Välme Senior Solution Manager - Mobile Networks Ericsson AB niclas.valme@ericsson.com Ericsson AB 2009 1 LTE Marknadskampanj Att erbjuda 80 megabit/s
More informationSingle Radio Voice Call Continuity (SRVCC) Testing Using Spirent CS8 Interactive Tester
Application Note Single Radio Voice Call Continuity (SRVCC) Testing Using Spirent CS8 Interactive Tester September 2013 Rev. A 09/13 Single Radio Voice Call Continuity (SRVCC) Testing Using Spirent CS8
More informationUTRA-UTRAN Long Term Evolution (LTE) and 3GPP System Architecture Evolution (SAE)
UTRA-UTRAN Long Term Evolution (LTE) and 3GPP System Architecture Evolution (SAE) Long Term Evolution of the 3GPP radio technology 3GPP work on the Evolution of the 3G Mobile System started with the RAN
More informationTop 10 Considerations for a Successful 4G LTE Evolved Packet Core Deployment
White Paper Top 10 Considerations for a Successful 4G LTE Evolved Packet Core Deployment As 1800 MHz has emerged as the main band for Long-Term Evolution (LTE) network deployments (LTE1800), LTE is going
More informationVoice and SMS in LTE White Paper
Voice and SMS in LTE White Paper This white paper summarizes the technology options for supporting voice and short message service (SMS) in LTE, including circuit switched fallback (CSFB), SMS over SGs,
More informationMobile Devices Security: Evolving Threat Profile of Mobile Networks
Mobile Devices Security: Evolving Threat Profile of Mobile Networks SESSION ID: MBS-T07 Anand R. Prasad, Dr.,ir., Selim Aissi, PhD Objectives Introduction Mobile Network Security Cybersecurity Implications
More informationNationwide Interoperability Framework
Nationwide Interoperability Framework Emergency Response Interoperability Center (ERIC) Public Safety Homeland Security Bureau Federal Communications Commission PSCR, Boulder, CO Dec 2, 2010 7/9/101 1
More informationNext Generation of Railways and Metros wireless communication systems IRSE ASPECT 2012 Alain BERTOUT Alcatel-Lucent
Next Generation of Railways and Metros wireless communication systems IRSE ASPECT 2012 Alain BERTOUT Alcatel-Lucent Slide 1 Wireless communication: What s at stake for Rail? Some of the key challenges
More informationAlcatel-Lucent LTE Solution. Edgar Velarde Technical Support Manager May 2011
Alcatel-Lucent LTE Solution Edgar Velarde Technical Support Manager May 2011 Agenda 1. Drivers for LTE deployment 2. LTE overview 3. LTE architecture & components Drivers for LTE deployment Market Trend:
More informationEvolutionary Trends towards Beyond 3G Mobile Networks
Evolutionary Trends towards Beyond 3G Mobile Networks Cornel Pampu, Cornelia Kappler, Morten Schläger / SN MN PG NT MN 4 November 17th, 2006 The new company Nokia Siemens Networks is expected to start
More informationUse of MPLS in Mobile Backhaul Networks
Use of MPLS in Mobile Backhaul Networks Introduction Backhaul plays a vital role in mobile networks by acting as the link between Radio Access Network (RAN) equipment (Eg: radio basestation) and the mobile
More informationNetwork Access Security in Mobile 4G LTE. Huang Zheng Xiong Jiaxi An Sihua 2013.07
Network Access Security in Mobile 4G LTE Huang Zheng Xiong Jiaxi An Sihua 2013.07 Outline Mobile Evolution About LTE Overview of LTE System LTE Network Access Security Conclusion Mobile Evolution Improvements
More informationehrpd Mike Keeley Market Segment Director
ehrpd Mike Keeley Market Segment Director Agenda ehrpd What, Why, and When? ehrpd s Impact on the Core Network ehrpd s Impact on the Mobile Device Verifying ehrpd works 2 Acronyms AAA AN BSC EAP- AKA ehrpd
More informationTABLE OF FIGURES... 5 EXECUTIVE SUMMARY... 7 1 BACKGROUND... 9 1.1 MOBILE APPLICATION LANDSCAPE... 9 1.2 MOBILE NETWORK ARCHITECTURE...
1 TABLE OF CONTENTS TABLE OF FIGURES... 5 EXECUTIVE SUMMARY... 7 1 BACKGROUND... 9 1.1 MOBILE APPLICATION LANDSCAPE... 9 1.2 MOBILE NETWORK ARCHITECTURE... 10 1.3 INTRODUCTION OF UMTS AND LTE NETWORK ARCHITECTURE...
More informationLong Term Evolution - LTE. A short overview
Long Term Evolution - LTE A short overview LTE Architecture 2 Conformance Test Suite Specification 3 GPP and ETSI product 3GPP TS 32.523-3 Evolved Universal Terrestrial Radio Access (E-UTRA) User Equipment
More informationEnterprise Connectivity over Mobile Broadband
NSN White paper October 2013 Enterprise Connectivity over Mobile Broadband Enabling Carrier Ethernet over LTE Networks CONTENTS Executive Summary 2 Market Trends 3 Target Customers 6 Proposed Solution
More informationMobile Wireless Overview
Mobile Wireless Overview A fast-paced technological transition is occurring today in the world of internetworking. This transition is marked by the convergence of the telecommunications infrastructure
More informationMobility and cellular networks
Mobility and cellular s Wireless WANs Cellular radio and PCS s Wireless data s Satellite links and s Mobility, etc.- 2 Cellular s First generation: initially debuted in Japan in 1979, analog transmission
More informationVoice Quality with VoLTE
Matthias Schulist Akos Kezdy Qualcomm Technologies, Inc. Voice Quality with VoLTE 20. ITG Tagung Mobilkommunikation 2015 Qualcomm Engineering Services Support of Network Operators Strong R&D Base End-to-end
More informationLTE Control Plane on Intel Architecture
White Paper Soo Jin Tan Platform Solution Architect Siew See Ang Performance Benchmark Engineer Intel Corporation LTE Control Plane on Intel Architecture Using EEMBC CoreMark* to optimize control plane
More information1 Introduction 1 1.1 Services and Applications for HSPA 3 1.2 Organization of the Book 6 References 7
Figures and Tables About the Authors Preface Foreword Acknowledgements xi xix xxi xxiii xxv 1 Introduction 1 1.1 Services and Applications for HSPA 3 1.2 Organization of the Book 6 References 7 2 Overview
More informationLTE Attach and Default Bearer Setup Messaging
LTE Attach and Default Bearer Setup Messaging 2012 Inc. All Rights Reserved LTE Attach Message Sequence Chart enodeb MME SGW HSS Initial UE Message Update Location Update Location Answer Create Session
More informationEvolution from 3G to LTE
Soluções Wireless - Tecnologias e Tendências Evolution from 3G to LTE December, 09 th, 2008 Adriano Oliveira Radio Access Solution Manager Nokia Siemens Networks 0 Nokia Siemens Networks Presentation /
More informationDemo 1. Network Path and Quality Validation in the Evolved Packet Core
Competence Center NGNI Demo 1 Network Path and Quality Validation in the Evolved Packet Core 1 Fraunhofer Institute FOKUS and TU Berlin AV AV provides education and applied research together with Fraunhofer
More informationStatus of 3G deployments and interoperability with 4G. Mike Hobby CDMA Data Marketing
Status of 3G deployments and interoperability with 4G Mike Hobby CDMA Data Marketing Value of Existing networks LTE is the technology currently getting significant attention in the press 59 LTE Operator
More informationMobility Management for All-IP Core Network
Mobility Management for All-IP Core Network Mobility Management All-IP Core Network Standardization Special Articles on SAE Standardization Technology Mobility Management for All-IP Core Network PMIPv6
More informationMobile network evolution A tutorial presentation
Mobile network evolution A tutorial presentation Andy Sutton Principal Design Consultant - Transport Networks Avren Events, Time and Sync in Telecoms, Dublin, Ireland Tuesday 2 nd November 2010 hello About
More informationVoice over LTE: Challenges and Opportunities
Voice over LTE: Challenges and Opportunities An Industry Whitepaper Contents Executive Summary... 1 Introduction to Voice over LTE... 2 The Benefits of VoLTE... 2 Requirements of a VoLTE-Capable PCRF...
More informationContents. Preface. Acknowledgement. About the Author. Part I UMTS Networks
Contents Preface Acknowledgement About the Author Acronyms xv xxi xxiii xxv Part I UMTS Networks 1 Introduction 3 1.1 Mobile Telecommunication Networks and Computer Networks 4 1.2 Network Design Principles
More informationSecurity in the Evolved Packet System
Vinjett Keeping wireless communication secure 4 Security in the Evolved Packet System Security is a fundamental building block of wireless telecommunications systems. It is also a process new threats are
More informationPerformance Evaluation of VoIP Services using Different CODECs over a UMTS Network
Performance Evaluation of VoIP Services using Different CODECs over a UMTS Network Jianguo Cao School of Electrical and Computer Engineering RMIT University Melbourne, VIC 3000 Australia Email: j.cao@student.rmit.edu.au
More informationAccelerating 4G Network Performance
WHITE PAPER Accelerating 4G Network Performance OFFLOADING VIRTUALIZED EPC TRAFFIC ON AN OVS-ENABLED NETRONOME INTELLIGENT SERVER ADAPTER NETRONOME AGILIO INTELLIGENT SERVER ADAPTERS PROVIDE A 5X INCREASE
More informationEVERYTHING YOU EVER WANTED TO KNOW ABOUT LTE
EVERYTHING YOU EVER WANTED TO KNOW ABOUT LTE (BUT WERE AFRAID TO ASK) SEMINAR PART 2/2 Jonathan Buschmann Ericsson Italy Rome, April 27, 2011 Objectives of the seminar Answer these questions How have mobile
More informationPDF vytvořeno zkušební verzí pdffactory www.fineprint.cz UMTS
UMTS Generations of mobile systems Generation 1 (1980-1995) 2 (1992-2000) 2,5 (1999-2010) 3 (2004-20?) Names NMT (Nordic Mobile Telephone); 450 MHz, 900 MHz AMPS (Advance Mobile Telephone System); USA
More informationCS Fallback Function for Combined LTE and 3G Circuit Switched Services
EPC Voice over Circuit Switched Services Special Articles on SAE Standardization Technology CS Fallback Function for Combined and Circuit Switched Services The PP, an international standardization body
More informationReorient or relocate the receiving antenna. Increase the separation between the equipment and receiver.
THE SPECIFICATIONS AND INFORMATION REGARDING THE PRODUCTS IN THIS MANUAL ARE SUBJECT TO CHANGE WITHOUT NOTICE. ALL STATEMENTS, INFORMATION, AND RECOMMENDATIONS IN THIS MANUAL ARE BELIEVED TO BE ACCURATE
More informationIntegrating Lawful Intercept into the Next Generation 4G LTE Network
Integrating Lawful Intercept into the Next Generation 4G LTE Network All telecommunication providers that currently or plan to provide 4G LTE service to their customers must consider significant changes
More informationETSI TS 123 401 V10.5.0 (2011-10)
TS 123 401 V10.5.0 (2011-10) Technical Specification LTE; General Packet Radio Service (GPRS) enhancements for Evolved Universal Terrestrial Radio Access Network (E-UTRAN) access (3GPP TS 23.401 version
More informationVirtualization techniques for redesigning mobile backhaul networks: challenges and issues. Fabrice Guillemin Orange Labs, IMT/IMT/OLN/CNC/NCA
Virtualization techniques for redesigning mobile backhaul networks: challenges and issues Fabrice Guillemin Orange Labs, IMT/IMT/OLN/CNC/NCA MobiArch 2015 September 7, 2015 Outline 1 2 3 Introduction Convergent
More informationLTE X2 Handover Messaging
LTE X2 Handover Messaging 2013 Inc. All Rights Reserved LTE X2 Handover Sequence Diagram UE Target enodeb Source enodeb MME SGW Handover Confirm X2AP Handover Request X2AP Handover Request Acknowledge
More informationPerformance Analysis and Deployment of VoLTE Mechanisms over 3GPP LTE-based Networks
International Journal of Computer Science and Telecommunications [Volume 4, Issue 10, October 2013] 1 ISSN 2047-3338 Performance Analysis and Deployment of VoLTE Mechanisms over 3GPP LTE-based Networks
More informationNetwork-Based Mobility Management in the Evolved 3GPP Core Network
LTE 3GPP RELEASE 8 Network-Based Mobility Management in the Evolved 3GPP Core Network Irfan Ali, Motorola Inc. Alessio Casati, Alcatel-Lucent Kuntal Chowdhury, Starent Networks Katsutoshi Nishida, NTT
More informationUpcoming Enhancements to LTE: R9 R10 R11!
Upcoming Enhancements to LTE: R9 R10 R11! Jayant Kulkarni Award Solutions jayant@awardsolutions.com Award Solutions Dallas-based wireless training and consulting company Privately held company founded
More informationHSPA+ and LTE Test Challenges for Multiformat UE Developers
HSPA+ and LTE Test Challenges for Multiformat UE Developers Presented by: Jodi Zellmer, Agilent Technologies Agenda Introduction FDD Technology Evolution Technology Overview Market Overview The Future
More information192620010 Mobile & Wireless Networking. Lecture 5: Cellular Systems (UMTS / LTE) (1/2) [Schiller, Section 4.4]
192620010 Mobile & Wireless Networking Lecture 5: Cellular Systems (UMTS / LTE) (1/2) [Schiller, Section 4.4] Geert Heijenk Outline of Lecture 5 Cellular Systems (UMTS / LTE) (1/2) q Evolution of cellular
More informationContents. Continuity of services and mobility
July 2013 Contents Summary... 3 Introduction... 3 1 Framework technologies: LTE/EPC and IMS... 4 1.1 LTE/EPC... 4 1.2 ANDSF - Access network discovery and selection function... 5 3.1.1 MME - Mobility Management
More informationSDN / Openflow Impacts on EPC Evolution
8th KuVS Fachgespräch NGSDP "Competitive Service Delivery Infrastructures April 17th, 2013, Vodafone-Schulungszentrum, Königswinter, Germany TU Berlin Chair for Next Generation Networks (AV) FOKUS Center
More informationVoice over IP Implementation
Voice over IP Implementation Ruchi Prasad Director, Global CDMA Product Marketing November, 2004 VoIP Objectives Packetizing Traditional Voice Native VoIP On The Device Cost Savings Application Integration
More informationEnd to End Delay Performance Evaluation for VoIP in the LTE Network
ENSC 427 COMMUNICATION NETWORKS SPRING 2013 Final Project Presentation End to End Delay Performance Evaluation for VoIP in the LTE Network Dai, Hongxin Ishita, Farah Lo, Hao Hua danield @ sfu.ca fishita
More information3GPP Long-Term Evolution / System Architecture Evolution Overview
3GPP Long-Term Evolution / System Architecture Evolution Overview September 2006 Ulrich Barth Outline 2 3G-LTE Introduction Motivation Workplan Requirements LTE air-interface LTE Architecture SAE Architecture
More informationBusiness Intelligence and Policies to Drive Profitable Mobile Broadband Services
Business Intelligence and Policies to Drive Profitable Mobile Broadband Services Niloufar Tayebi Product Marketing Director, GENBAND Femtocells World Summit, June 2011, London, UK Outline Business Intelligence
More informationNetwork Policy Control and the Migration to LTE
Contents Executive Summary... 1 Market Drivers... 2 The Fall of Erlang and the Rise of IP... 3 LTE and Network Policy Control... 5 Key 3GPP Release 11 PCC Elements... 7 3GPP PCC Theory of Operation...
More informationWhitepaper. 10 Metrics to Monitor in the LTE Network. www.sevone.com blog.sevone.com info@sevone.com
10 Metrics to Monitor in the LTE Network The deployment of LTE increases dependency on the underlying network, which must be closely monitored in order to avert serviceimpacting events. In addition, the
More informationVoIP in the Wireless World
VoIP in the Wireless World Aarti Iyengar Product Specialist, Nortel aarti@nortel.com July 2005, Sanog 6-1 Agenda Issues Standards and Market Evolution IP Multimedia Services Architecture Applications and
More information