Possible Solutions for Fast Handoff – feasibility of L2 Trigger for ...
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Possible Solutions for Fast Handoff – feasibility of L2 Trigger for ...
Possible Solutions for Fast Handoff – feasibility of L2 Trigger for FMIP and L2 mobility support
Communications Research Laboratory Mitsubishi Electric Corporation
FMIP(v6) {
Demands L2triggers z z z z z
LinkUP Link Down Mobile Trigger Source Network Trigger Target Network Trigger
Communications Research Laboratory & Mitsubisi Electric
2
However…How? {
Needs an anticipation mechanism of mobile host movement basically based on signal strength measurement z
z
11k defines only measurement interface and MIB structure so far How AP candidates information are integrated especially in case of overlay network? Communications Research Laboratory & Mitsubisi Electric
3
..and How? {
ARs tell their MAC address Each other
Communications Research Laboratory & Mitsubisi Electric
4
Maybe.. {
{
ARs Need protocols to exchange Radio link status information with each other and respective AP links Those could be L2 triggers the 802.21 should provide… z
{
Seems difficult to define generic interface across various radio systems (even within the 802 family)
L2 triggering is not easy! Communications Research Laboratory & Mitsubisi Electric
5
Another Approach – Mobile Ethernet CRMS/CSS
Segment Gateway Switch Segment
Measurement Report
3G Cellular AP
Common Signaling Interface Switching Request
Interface Switching Response WLAN AP
Communications Research Laboratory & Mitsubisi Electric
6
Mobile Ethernet {
{
Could be more straightforward approach Can be applicable as a base system for L2 triggering mechanism
Communications Research Laboratory & Mitsubisi Electric
