IEEE CQR 2009 International Workshop

Transcription

1 May 11 th, 2009 IEEE CQR 2009 International Workshop Co-Existence of 3G and LTE Network Devesh Agarwal, RVP Presales This document is for informational purposes only, and Tekelec reserves the right to change any aspect of the products, features or functionality described in this document without notice. Please contact Tekelec for additional information and updates. Tekelec. For What's Next.

2 Agenda Current 2G/3G Wireless Networks LTE Proposed Architecture Converged Network Role of Database at the Core Summary 2 Tekelec. For What's Next. Tekelec Confidential

3 HLR Router Core HLR Selection DB Subscriber Routing Database HLR Router SS7 SMSC SMSC SMSC MSC 3 Tekelec. For What's Next. Tekelec Confidential

4 Flat LTE Architecture 4 Tekelec. For What's Next. Tekelec Confidential

5 LTE and EPC Architecture Simplified S6a () : : Home Home Subscriber Subscriber Server Server MME: MME: Mobility Mobility Management Management Entity Entity GW: GW: Gateway Gateway enodeb: enodeb: Enhanced Enhanced Node Node B B SGW: SGW: Serving Serving Gateway Gateway PDN: PDN: Packet Packet Data Data Network Network PCRF: PCRF: Policy Policy and and Charging Charging Rules Rules Function Function S1-MME MME PCRF Gx Rx Control Plane enodeb S11 User/Data Plane X2 X2 enodeb S1-U Serving Gateway S5 PDN Gateway SGi PDN/Internet enodeb 5 Tekelec. For What's Next. Tekelec Confidential

6 HLR/ Selection Router (cont) HLR/ Selection logic at the core No more MSC/MSS/MME routing table impact Evolution to support migration of subscribers from 3G/2G to LTE HLR 1 HLR 2 HLR 30 HLR 1 HLR 2 HLR MIN/MDN to HLR/ mapping table in the Core MIN HLR HLR MSISDN / MDN HLR HLR G 2G New LTE Network 6 Tekelec. For What's Next. Tekelec Confidential

7 HLR/ Selection Database Phase_1 Phase_2 HLR1 HLR2 1 2 HLR1 HLR2 n HLR Router HLR Router SLF DRP Signaling Core Signaling Core Wireless 2G, 3G, IMS Wireless 2G, 3G LTE IMS 7 Tekelec. For What's Next. Tekelec Confidential

8 Network Elements and Protocol Access Current Network has HLR/MSC/SMSC/xGSN using MAP LTE has MME//PCRF using SLF, HLR/ Selectors, 2/3G-LTE migration Subscriber Routing DB (SRDB) DIAMTER MAP MAP Add Customer Specific Database MME SGSN MSC LTE GPRS 2G/3G GSM 8 Tekelec. For What's Next. Tekelec Confidential

9 Core DB Evolution continues Phase_3 Phase_4 HLR HLR HLR HLR G Flex SLF Customer DB 3G/LTE Migration G Flex SLF Customer DB 3G/LTE Migration ENUM NP Signaling Signaling Core Core Wireless 2G, 3G LTE IMS LTE IMS Wireless 2G, 3G VOIP 9 Tekelec. For What's Next. Tekelec Confidential

10 Relay Point - DRP DRP acts as a Proxy Agent and forwards Query and Response messages to the respective destination based on the Destination HOST, Realm and Application Id. It also performs HOST name to IP address resolution using external DNS queries The DRP plays a critical role in the IMS network by offering several advantages: Reduces the number of SCTP associations required in the network. This will help simplify the overall complexity in the network All the network elements shall just route to DRP for any messages destined to. DRP offers load-sharing, faster failure detection and recovery and efficient routing of messages Merging the SLF and DRP functions in a single node reduced latency of queries. It also reduces the number of messages required to perform a query DRP can be used to perform selection as well as Mediation at a later phase 10 Tekelec. For What's Next. Tekelec Confidential

11 DRP ( Proxy) Subscriber Routing Database S-CSCF PCRF DIAMETER I-CSCF CCF, CDF, OCS MFRC AS MME 11 Tekelec. For What's Next. Tekelec Confidential

12 Converged Database for Multiple Applications Interfaces with multiple data sources for subscriber and network data NP, ENUM, SMS, Vmail, Prepaid... Network access through multiple protocols Reduced OPEX/CAPEX due to shared DB, provisioning and network access Improved capacity and performance Simplified provisioning and operations NP Ref Data 3G ENUM Registry Common Subscriber Routing Database SS7 Access Network Routing Data HLR Router Customer Provisioning System SLF IP Access IN / AIN / INAP / SRISIP, ENUM, LDAP, DIAMETER, / ATI / ISUP SOAP/XML DRP Router LTE+IMS 3G/LTE Migration IP Access https, LDAP, SOAP/XML LNP/ ENUM Customer Service Subscriber Routing Database 12 Tekelec. For What's Next. Tekelec Confidential

13 Summary: Role of Core Routing DB Core Realtime DB LNP HLR Router Service Portability App Subscriber Routing Database D - Proxy SLF ENUM LDAP MGR SS7 LDAP MSC DIAMETER DNS App1 App2 PCRF CCF, CDF, OCS I-CSCF S-CSCF MFRC AS MME 13 Tekelec. For What's Next. Tekelec Confidential

14 Thank you!! Devesh Agarwal RVP, Presales, Americas Phone: Tekelec. For What's Next. Tekelec Confidential