ehrpd Mike Keeley Market Segment Director

Transcription

1 ehrpd Mike Keeley Market Segment Director

2 Agenda ehrpd What, Why, and When? ehrpd s Impact on the Core Network ehrpd s Impact on the Mobile Device Verifying ehrpd works 2

3 Acronyms AAA AN BSC EAP- AKA ehrpd EMFPA enb EPC FA FCP HA HSGW ICPC LUP Authentication, Authorization, and Accounting server Access Node Base Station Controller Base Transceiver Station Base Transceiver Station or base station Extensible Authentication Protocol Method for 3rd Generation Authentication and Key Agreement evolved High Rate Packet Data Enhanced Multi-Flow Packet Application (sometimes abbreviated as EMPA) evolved NodeB Evolved Packet Core System Architecture Evolution (equivalent to SAE) Foreign Agent Flow Control Protocol Home Agent HRPD Serving Gateway IP Control Protocol (IPv4 Network Control Protocol) Location Update Protocol 3

4 Acronyms MFPA MME PCF PDF PDSN PGW PGW PMIP QoS RAN RLP RSVP SAE SGW SGW VSNCP VSNP Multi-Flow Packet Application (sometimes abbreviated as MMPA) Mobility Management Entity Packet Control Function Packet Data Function Packet Data Serving Node Packet Data Network Gateway Packet Data Network Gateway (interface to other IP networks such as IMS-based Evolver Packet Core [EPC]) Proxy Mobile IP Quality of Service Radio Access Network Radio Link Protocol Resource reservation Protocol System Architecture Evolution (equivalent to EPC) Serving Gateway Serving Gateway Vendor-Specific Network Control Protocol Vendor-Specific Network Protocol 4

5 ehrpd What, Why, and When?

6 What is ehrpd (10,000 Level)? An upgrade of existing HRPD (EV-DO) networks to allow EV-DO service providers to introduce SAE/EPC architecture elements to their existing packet core network Includes both air interface and packet core network changes ehrpd provides for a high quality of experience for multi-mode UEs 6

7 Why ehrpd (Carriers Perspective)? CDMA/EV-DO carriers transitioning towards LTE don t want to do massive forklift upgrades Carriers will have to deploy 1X, EV-DO, and LTE all at the same time It s a phased migration Carriers can upgrade one small piece at a time without interruptions 7

8 Why ehrpd (Consumers Perspective)? Subscribers are used to seamless mobility Provides an evolutionary path from EV-DO networks to LTE networks Allows seamless services, including handovers, between ehrpd and LTE networks One IP address no matter where the user roams, and no matter what network it s on. 8

9 When Will ehrpd Be Here? LTE Deployment Timetable 2008: Standards converging on completion 2010: ehrpd deployment 2010: Initial deployments of data only devices 2015: Full-scale global deployment : Advanced trials & test of pre-commercial devices 2011: First handset-like devices 9

10 ehrpd s Impact on the Core Network

11 3GPP2 technology networks HA Home Agent IP service anchor PDSN/FA 1X EV-DO BSC/PDF AN/PCF Packet Data Serving Node For EV-DO, the PDSN is configured to be the Foreign Agent (FA) 1X - Base-Station Controller/ Packet Data Function EV-DO - Access Node/Packet Control Function 11

12 LTE networks Packet Data Network Gateway IP policy enforcement on packet flows to and from mobile devices PGW Serving Gateway InterRAT anchor Mobility anchor SGW MME Mobility Management Entity Paging & Authentication Signaling Control Tracking enb enb 12

13 ehrpd The glue between the two PGW HSGW RNC Packet Data Network Gateway IP policy enforcement on packet flows to and from mobile devices HRPD Serving Gateway Converges mobility functions between LTE and CDMA/EV-DO ehrpd Radio Network Controller 13

14 RAN Block Diagram HA PGW PGW PDSN/FA HSGW SGW 1X EV-DO ernc MME BSC/PDF AN/PCF e e enb enb 14

15 Co-location HA/PGW HA PGW PGW AAA/HSS PDSN/FA/ HSGW/ SGW PDSN HSGW SGW BSC/PDF AN/PCF ernc MME e e enb enb 15

16 Interfaces AAA/HSS HA/PGW S2a S2a PDSN/FA/ HSGW/ SGW S11 S11 S103 S103 S101 S101 A10/ A10/ A11 A11 ernc MME BSC/PDF AN/PCF S1-MME S1-MME S1-MME S1-MME e e NB NB 16

17 Interfaces S2a S11 S103 S1-MME S101 A10/A1 1 PDSN/FA PGW MME SGW PDSN/FA SGW MME enb MME PCF PDSN/FA PCF 17

18 Implementation On the Network: New Service Options SO59 HRPD connection to a Packet Data Network SO67 (possible future implementation) QoS Bearer Service Option IPv6 Always on; IPv4 on demand Vendor-Specific Network Protocol (VSNP) uses VSNCP (Vendor-Specific Network Control Protocol) 18

19 ehrpd s Impact on the Mobile Device

20 Implementation On Devices and the RAN On Devices and the RAN Enhanced Multi-Flow Packet Application (EMFPA) Implemented as changes in RLP, LUP and FCP VSNCP Vendor Specific Network Control Protocol In lieu of IPCP, which EV-DO uses to connect to the PDSN, here we use VSNCP to connect to the PDN Gateway 20

21 Implementation On Devices and the RAN On Devices and the RAN VSNP Vendor Specific Network Protocol carries RSVP (Resource reservation Protocol) payload for QoS enforcement PMIP Proxy Mobile IP Replaces MIP stack on the device IP-based QoS bearer instead of PPP-based bearer 21

22 Implementation - Authorization New Authorization routine consistent with 3GPP standards: EAP-AKA : Extensible Authentication Protocol Method for 3rd Generation Authentication and Key Agreement EAP-AKA : The apostrophe indicates that this is Improved EAP-AKA Binds network name information to the key 22

23 Verifying that ehrpd works

24 ehrpd-specific Testing Conformance Tests Session Negotiation Tests With ehrpd, HRPD With (and between) different application subtypes (MFPA, EMPFA, etc.) Session Configuration Tests for Dormant Handoff between ehrpd and HRPD With ProtocolID renegotiated at Connection Request & on access with ehrpd HRPD personality switch CDMA2000 1X and ehrpd Mobility System Reselection, active & dormant Dormant ehrpd to Idle E-UTRAN (and vice versa) Handoffs With & without A13 session information transfers 24

25 ehrpd-specific Testing Conformance Tests (continued) PPP Based Main-Service Connection Establishment Session establishment and authentication IP Address Assignment and PDN Attach and Detach Procedures Includes Vendor Specific Network Control Protocol (VSNCP) Interoperability Tests SMS origination and termination during active ehrpd session SMS origination and termination during dormant ehrpd session Voice call origination and termination during active ehrpd session Voice call origination and termination during dormant ehrpd session 25

26 ehrpd-specific Adversarial Testing Adversarial Testing (examples) HSGW unavailable IP address pool depletion PDSN/FA errors no response 26

27 Questions?