Wireless label switched packet transfer network
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,(i) wherein said base stations use wireless technology to communicate with said mobile terminals, said wireless technology uses a protocol layer architecture including at least one of the following;
(1) a wireless physical layer;
(2) a wireless medium access control protocol layer;
(3) a radio link control layer, said radio link control segments mobile packets into radio link frames identified by radio link identifiers and users means for error mitigation to enhance or radio link quality; and
(4) a network layer;
(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) a means for determining a label switched path for directing packets between a pair of locations, said pair of locations consisting of;
(i) nodes; and
(ii) base stations;
(f) a means for attaching a label to said packets, said label including;
(i) said label switched path; and
(ii) control information;
(g) a means for removing Bald label from said labeled packet;
(h) a means for each of said nodes to interpret said label; and
(i) a moans 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
50 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, (i) wherein said base stations use wireless technology to communicate with said mobile terminals, said wireless technology uses a protocol layer architecture including at least one of the following; (1) a wireless physical layer; (2) a wireless medium access control protocol layer; (3) a radio link control layer, said radio link control segments mobile packets into radio link frames identified by radio link identifiers and users means for error mitigation to enhance or radio link quality; and (4) a network layer; (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) a means for determining a label switched path for directing packets between a pair of locations, said pair of locations consisting of; (i) nodes; and (ii) base stations; (f) a means for attaching a label to said packets, said label including; (i) said label switched path; and (ii) control information; (g) a means for removing Bald label from said labeled packet; (h) a means for each of said nodes to interpret said label; and (i) a moans 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)
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46. 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 pair of locations 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; and (j) a plurality of routing areas, each of said muting areas consisting of a set of cells whose base stations are connected to the same label switched node. - View Dependent Claims (47, 48, 49)
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50. 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 pair of locations consisting of; (i) nodes; and (ii) base stations; (f) a means for attaching a label to said packets, said label including; (i) said label switched path; and (ii) control information; (g) a 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; and (j) a mobile terminal hand-off mechanism including the steps of; (i) finding a new data path from said mobile to a new base station; (ii) using said new data path to establish a new label switched path to said new base station; (iii) enabling said mobile to receive and transmit to both the old base station and said new base station when said mobile is in a diversity area; (iv) shifting the data path at a crossover node to said new label switched path; and (v) extending traffic flow to new base station when said mobile has completely moved under said new base station'"'"'s coverage.
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Specification