Abstract:
A way to deliver traffic to a mobile node that is undergoing a hand off between two Access Routers (AR) is described. The method of the present invention operates to perform some or all of the following: decrease, e.g., minimize, delays between the time the old link breaks and the first packet is sent from the new link; reduce and/or eliminate packet bursts from old to new AR when an old (existing) link breaks; ensure that packets are neither lost nor duplicated during hand off; maintain QoS control of delivery order to the MN; make good or best use of multiple links during make-before-break hand-off; and support both uplink and downlink traffic.
Abstract:
Methods and apparatus for storing, manipulating, retrieving, and forwarding state, e.g., context and other information, used to support communications sessions with one or more end nodes, e.g., mobile devices, are described. Various features are directed to a mobile node controlling the transfer of state from a first access node to a second access node during a handoff operation thereby eliminating any need for state transfer messages to be transmitted between the second access node and the first access node during handoff. Other features of the invention are directed to the use of a core network node to store state information. State information stored in the core node can be accessed and used by access nodes in cases where a mobile node does not send a state transfer message during a handoff, e.g., because communication with the first access node is lost or because such messages are not supported.
Abstract:
Methods and apparatus for storing, manipulating, retrieving, and forwarding state, e.g., context and other information, used to support communications sessions with one or more end nodes, e.g., mobile devices, are described. Various features are directed to a mobile node controlling the transfer of state from a first access node to a second access node during a handoff operation thereby eliminating any need for state transfer messages to be transmitted between the second access node and the first access node during handoff. Other features of the invention are directed to the use of a core network node to store state information. State information stored in the core node can be accessed and used by access nodes in cases where a mobile node does not send a state transfer message during a handoff, e.g., because communication with the first access node is lost or because such messages are not supported.
Abstract:
A way to deliver traffic to a mobile node that is undergoing a hand off between two Access Routers (AR) is described. The method of the present invention operates to perform some or all of the following. Decrease, e.g., minimize, delays between the time the old link breaks and the first packet is sent from the new link. Reduce and/or eliminate packet bursts from old to new AR when an old (existing) link breaks. Ensure that packets are neither lost nor duplicated during hand off. Maintain QoS control of delivery order to the MN. Make good or best use of multiple links during Make before break hand-off. Support both uplink and downlink traffic.