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4G: The End of the Intelligent Network

4G: The End of the Intelligent Network. Dana blair (dblair@cisco.Com) 678-352-2789. Pre-4G Intelligent Network. Current mobile wireless infrastructure is the last outpost of the Intelligent Network Service delivery centered around SS7/IS-41/GSM MAP intelligent nodes within the network

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4G: The End of the Intelligent Network

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  1. 4G: The End of the Intelligent Network Dana blair (dblair@cisco.Com) 678-352-2789

  2. Pre-4G Intelligent Network • Current mobile wireless infrastructure is the last outpost of the Intelligent Network • Service delivery centered around SS7/IS-41/GSM MAP intelligent nodes within the network • 1G is POTS over the air • 2G/2.5G/3G is ISDN over the air

  3. Pre-4G Intelligent Network • Every digital wireless phone is an ISDN phone with handoff and paging • Voice service deployment with 3G is equivalent to service deployment with ISDN • ISDN was unsuccessful in deployment of new voice services and integrated voice/data. • However, 3G has cracked open the door with SIP and IPv6 endorsement

  4. PSTN MSC Server 3G R’99 RNC Node B ISDN w/ handoff ATM ATM 3G R’00 VoIP Node B RNC SGSN GGSN IP Tunnel ATM IP Tunnel Call State Control Function SIP Call stateful Proxy 4G VoIP Node B Internet IP SIP Media Gateway 2G to 4G Voice Delivery Base StationController Mobile Switching Center(MSCA) 2G BTS ISDN w/ handoff Circuit

  5. 3G View of SIP • ISDN call model with SIP protocol instead of Q.931 • Replace SS7/IS-41/GSM MAP application development with SIP • Voice call control performed by Intelligent Network nodes (CSCF, …) • Similar to ISDN voice and integrated voice/data service deployment model

  6. 3G View of IPv6 • Need larger address space for billions of mobile devices • Permanently assign an IPv6 address to every mobile device • Global tromboning through Intelligent Network nodes • Mobility managed through IP tunneling

  7. 2.5G GPRS Node B RNC SGSN GGSN IP Tunnel ATM IP Tunnel 3G UMTS Node B RNC SGSN GGSN Internet IP Tunnel ATM IP Tunnel 4G Node B IP 2G to 4G Data Base StationController Mobile Switching Center(MSCA) V.110 NAS 2G BTS ISDN w/ handoff PSTN Circuit 3G data delivery is the same as 2.5G

  8. 3G compared 2G/2.5G • Multimode radio still needed • Similar throughput, delay, reliability, QoS advantage • Same ISDN call model • Voice and Data continue to use seperately signalled channels • Very similar service delivery model.

  9. 4G: What About Bandwidth ? • How much energy can be squeezed into a cubic meter of air without damaging plants and animals ? • Transmission rates are limited by the output power of the mobile device and human factors

  10. 4G: What About Bandwidth ? • Battery technology improves • Human factors do not change. • Why does a microwave oven shut off immediately when the door is open ? • Solution - decrease the distance from handset to receiver with greater base station density

  11. A View of 4G • GSM/TDMA/EDGE/CDMA 2G/2.5G radios • IP over 3G R’99 ATM infrastructure • SIP and IPv6 in the handset • Optimal internet routing and handoff protocols • Greater base station density improves bandwidth

  12. A View of 4G • Seamless use of many radio protocols both licensed and unlicensed spectrum (802.11, bluetooth, cellular, …) • Integration of voice and data over the same transmission channel • Integrated voice and data SIP-enabled applications

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