Label switched packet transfer
First Claim
1. A cellular network comprising:
- (a) a service area divided into a multitude of cells through which one or more mobile terminals can move through;
(b) base stations capable of communicating with said mobile terminals, deployed in each of said multitude of cells for forwarding packets between said base stations and said mobile terminals;
(c) a cellular label switched network, including a plurality of nodes, said plurality of nodes topologically connected, said plurality of nodes including at least one label switching node;
(d) a connection between each of said base stations and at least one label switching node for forwarding packets between said base stations and said label switching nodes;
(e) means for determining a label switched path for directing packets between a pair of locations, said locations selected from the group consisting of;
(i) nodes; and
(ii) base stations;
(f) means for attaching a label to said packets, said label including;
(i) said label switched path; and
(ii) control information;
(g) means for removing said label from said labeled packet;
(h) a means for each of said nodes to interpret said label;
(i) a means for each of said nodes to forward said label switched packet along said label switched path.
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Accused Products
Abstract
A method and apparatus to support a hierarchical architecture which integrates wireless mobile terminals into networks such as the Internet. This architecture provides for efficient packet transfers over mobile wireless networks by efficiently allocating wireless resources. Label Switched packet forwarding facilitates traffic engineering and internetworking by attaching short fixed length labels to communications packets at an entry node to a wireless network to provide an efficient path to an exit node of the same wireless network. Forwarding mechanisms and limited broadcasting of reachability information are used in managing and routing the communications packets through the wireless mobile network. The present invention also supports multiple radio links between a mobile and a multiplicity of base stations. Multi-link techniques are used to affect an efficient packet transfer and admission policy.
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Citations
53 Claims
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1. A cellular network comprising:
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(a) a service area divided into a multitude of cells through which one or more mobile terminals can move through;
(b) base stations capable of communicating with said mobile terminals, deployed in each of said multitude of cells for forwarding packets between said base stations and said mobile terminals;
(c) a cellular label switched network, including a plurality of nodes, said plurality of nodes topologically connected, said plurality of nodes including at least one label switching node;
(d) a connection between each of said base stations and at least one label switching node for forwarding packets between said base stations and said label switching nodes;
(e) means for determining a label switched path for directing packets between a pair of locations, said locations selected from the group consisting of;
(i) nodes; and
(ii) base stations;
(f) means for attaching a label to said packets, said label including;
(i) said label switched path; and
(ii) control information;
(g) means for removing said label from said labeled packet;
(h) a means for each of said nodes to interpret said label;
(i) a means for each of said nodes to forward said label switched packet along said label switched path. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53)
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Specification