METHODS AND APPARATUS FOR QUICKLY EXPLOITING A NEW LINK DURING HAND-OFF IN A WIRELESS NETWORK
First Claim
1. A method of operating a mobile node comprising:
- receiving a frame communicated over one of a first downlink with a first access router and a second downlink with a second access router prior to said frame having been successfully communicated over another one of said first and second downlinks, said first and second downlinks being unsynchronized downlinks with respect to frame transmissions; and
communicating acknowledgment information, to both said first access router and said second access routers, indicating the successful reception of said frame.
1 Assignment
0 Petitions
Accused Products
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.
-
Citations
14 Claims
-
1. A method of operating a mobile node comprising:
-
receiving a frame communicated over one of a first downlink with a first access router and a second downlink with a second access router prior to said frame having been successfully communicated over another one of said first and second downlinks, said first and second downlinks being unsynchronized downlinks with respect to frame transmissions; and communicating acknowledgment information, to both said first access router and said second access routers, indicating the successful reception of said frame. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
-
-
9. A mobile node comprising:
-
means for receiving a frame communicated over one of a first downlink with a first access router and a second downlink with a second access router prior to the frame having been successfully communicated over another one of said first and second downlinks, said first and second downlinks being unsynchronized downlinks with respect to frame transmissions; and means for communicating acknowledgment information, to both said first access router and said second access routers, indicating the successful reception of said frame. - View Dependent Claims (10, 11, 12, 13, 14)
-
Specification