Multi-hop peer-to-peer telecommunications method in a wireless network, radio terminal telecommunications method, and medium recording a program for causing a processor to implement the radio terminal telecommunications method
The present invention is a method for performing multi-hop peer-to-peer telecommunications on a wireless network, the topology of which changes moment by moment and which includes a plurality of radio terminals. The present invention makes possible correct routing control even on a network with seve...
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Format | Patent |
Language | English |
Published |
15.08.2006
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Online Access | Get full text |
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Abstract | The present invention is a method for performing multi-hop peer-to-peer telecommunications on a wireless network, the topology of which changes moment by moment and which includes a plurality of radio terminals. The present invention makes possible correct routing control even on a network with severe topology changes.The present invention comprises the following steps:each radio terminal exchanges the link state with radio terminals capable of direct communication (this link state includes only information on radio terminals within a predetermined number of hops), and constructs a routing table;a packet is prepared including the routing stack for storing intermediate routing information whenever the packet passes through the terminals;the sender terminal designates a destination terminal and broadcasts the abovementioned packet;the radio terminals on the route, which receive the packet, write the intermediate routing information to the routing stack while transferring the packet to all radio terminals based on the routing table;the destination terminal which receives said packet returns said packet to said sender terminal through the route followed by said packet based on information in said routing stack; andsaid sender terminal which receives said packet unicasts a message to said destination terminal through the radio terminals on said route based on information in said routing stack included in said packet. |
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AbstractList | The present invention is a method for performing multi-hop peer-to-peer telecommunications on a wireless network, the topology of which changes moment by moment and which includes a plurality of radio terminals. The present invention makes possible correct routing control even on a network with severe topology changes.The present invention comprises the following steps:each radio terminal exchanges the link state with radio terminals capable of direct communication (this link state includes only information on radio terminals within a predetermined number of hops), and constructs a routing table;a packet is prepared including the routing stack for storing intermediate routing information whenever the packet passes through the terminals;the sender terminal designates a destination terminal and broadcasts the abovementioned packet;the radio terminals on the route, which receive the packet, write the intermediate routing information to the routing stack while transferring the packet to all radio terminals based on the routing table;the destination terminal which receives said packet returns said packet to said sender terminal through the route followed by said packet based on information in said routing stack; andsaid sender terminal which receives said packet unicasts a message to said destination terminal through the radio terminals on said route based on information in said routing stack included in said packet. |
Author | Umeda, Hidekazu |
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References | Ogier et al. (2003/0179742) 20030900 Garcia-Luna-Aceves et al. (2003/0037167) 20030200 Larsson et al. (6704293) 20040300 Gerla et al., "Fisheye State Routing Protocol (FSR) for Ad Hoc Networks", http://www.ietf.org/internet-drafts/draft-ietf-manet-fsr-00.txt, 2001. Toh (5987011) 19991100 Navas (2003/0026268) 20030200 Johansson et al. (2002/0044549) 20020400 Li (6385174) 20020500 Perkins et al., "Ad hoc On-Demand Distance Vector (AODV) Routing", http://www.ietf.org/internet-drafts/draft-ietf-manet-aodv-08.txt, 2001. Poor (6028857) 20000200 Johnson et al, "The Dynamic Source Routing Protocol for Mobile Ad Hoc Networks (DSR)", http://www.ietf.org/internet-drafts/draft-ietf-manet-dsr-07.txt, 2002. Lipasti et al. (2002/0039357) 20020400 Stine (2003/0033394) 20030200 |
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Snippet | The present invention is a method for performing multi-hop peer-to-peer telecommunications on a wireless network, the topology of which changes moment by... |
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Title | Multi-hop peer-to-peer telecommunications method in a wireless network, radio terminal telecommunications method, and medium recording a program for causing a processor to implement the radio terminal telecommunications method |
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