| US 7,464,166 B2 | ||
| Contention-based forwarding with integrated multi-user detection capability | ||
| Peter Larsson, Solna (Sweden); and Niklas Johansson, Järfälla (Sweden) | ||
| Assigned to Telefonaktiebolaget LM Ericsson (publ), Stockholm (Sweden) | ||
| Filed on Dec. 08, 2003, as Appl. No. 10/729,835. | ||
| Claims priority of provisional application 60/461840, filed on Apr. 11, 2003. | ||
| Prior Publication US 2004/0205105 A1, Oct. 14, 2004 | ||
| Int. Cl. G06F 15/16 (2006.01) | ||
| U.S. Cl. 709—228 [370/252; 370/254; 370/230] | 36 Claims |
| 1. A method for contention-based forwarding of information in a multi-hop network having multiple nodes, said method comprising
the steps of:
at least one of a plurality of transmitting nodes transmitting its data packet signal to multiple relay candidate nodes;
receiving, in at least one receiving relay candidate node, a superposition of signals transmitted from multiple transmitting
nodes;
employing multi-user detection (MUD) to decode multiple data packets from the received superposition of signals;
prioritizing among correctly decoded packets to select at least one data packet suitable for forwarding;
replying with a packet acknowledgement for each selected packet;
prioritizing among relay candidate nodes from which acknowledgements are received to select at least one suitable relay node;
transmitting a forwarding order to said at least one selected relay node instructing the selected relay node or nodes to take
on responsibility for forwarding the information to a next node in the multi-hop network.
|