Mobile Network
IPv4 and ipv6
Differences
IPv6
Optional Extras: Fixed length (40 Bits, as opposed to 32), but able to extend
Header change to aid QoS
Checksum: Removed checksum to reduce processing time at each hop.
Motivation:
Requirement of large number of addresses
Stateless Auto-configuration
Anycast address route to “best” of several servers – (No broadcast) provides flexibility where we don’t care about which route the data goes through
Route Optimization: necessary to improve the internet performance by
Reduce latency
Bandwidth utilization
Reduce vulnerability to network partition
Eliminate any potential home agent bottleneck
Transition methods
Because not all routers can be upgraded simultaneously
Duel Stack: translate between format, utilize a duel stack router
Tunneling: IPv6 carried as payload in IPv4 datagram among IPv4 routers.
HSCSD characteristics What are the main characteristics of the high speed circuit-switched data system? Elaborate those characteristics with those still needed for next generation mobile internet
Allows GSM to use more than 1 timeslot per TDMA frame, up to 8 slots
Supports either UL/DL symmetric or asymmetric transmission which can be re-negotiated
No need to change the air interface or access network
Circuit Switched –
Compared to HSCSD characterestics, new generation mobile network requires all IP-based packet switched core network eliminating the need of circuit switched. Also new generation mobile network requires a much higher data rates of several order of magnitudes than HSCSD data rate. finally, the heterogeneity involved in next generation wireless networks requires modification of protocol stack either to be adaptive or cross layer design rather than traditional TCP/IP protocol."
Future telecommunication systems requirements
Supports new and existing applications
Horizontal communication between different technology
Connect through a common, flexible, seamless core network
(Extra) CDPD
Peer
Differences
IPv6
Optional Extras: Fixed length (40 Bits, as opposed to 32), but able to extend
Header change to aid QoS
Checksum: Removed checksum to reduce processing time at each hop.
Motivation:
Requirement of large number of addresses
Stateless Auto-configuration
Anycast address route to “best” of several servers – (No broadcast) provides flexibility where we don’t care about which route the data goes through
Route Optimization: necessary to improve the internet performance by
Reduce latency
Bandwidth utilization
Reduce vulnerability to network partition
Eliminate any potential home agent bottleneck
Transition methods
Because not all routers can be upgraded simultaneously
Duel Stack: translate between format, utilize a duel stack router
Tunneling: IPv6 carried as payload in IPv4 datagram among IPv4 routers.
HSCSD characteristics What are the main characteristics of the high speed circuit-switched data system? Elaborate those characteristics with those still needed for next generation mobile internet
Allows GSM to use more than 1 timeslot per TDMA frame, up to 8 slots
Supports either UL/DL symmetric or asymmetric transmission which can be re-negotiated
No need to change the air interface or access network
Circuit Switched –
Compared to HSCSD characterestics, new generation mobile network requires all IP-based packet switched core network eliminating the need of circuit switched. Also new generation mobile network requires a much higher data rates of several order of magnitudes than HSCSD data rate. finally, the heterogeneity involved in next generation wireless networks requires modification of protocol stack either to be adaptive or cross layer design rather than traditional TCP/IP protocol."
Future telecommunication systems requirements
Supports new and existing applications
Horizontal communication between different technology
Connect through a common, flexible, seamless core network
(Extra) CDPD
Peer