Formation of wireless local area networks based on movement direction of nodes
First Claim
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1. A method for determining, in a mobile node, whether to join a wireless network, comprising:
- receiving a first broadcast message via a wireless ad hoc network from at least one other mobile node, wherein the first broadcast message includes a network identifier and a moving direction for the at least one other mobile node;
wherein the moving direction is embedded in the network identifier of the first broadcast message;
determining the moving direction of the mobile node, and comparing the moving direction of the mobile node to the moving direction of the at least one other mobile node;
connecting to the at least one other mobile node via the wireless ad hoc network in response to a determination that the moving direction of the mobile node is substantially the same as the moving direction of the at least one other mobile node; and
determining that the mobile node is unable to connect to a wireless cellular network via the at least one other mobile node;
in response to said determining that the mobile node is unable to connect to a wireless cellular network, sending a request message to the at least one other mobile node that is a tunnel end mobile node, the request message requesting network types to which the at least one other mobile node is connected; and
employing the at least one other mobile node to exchange data with the wireless cellular network in response to a determination that the at least one other mobile node is connected to the wireless cellular network.
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Abstract
Mobile nodes without connectivity to a wireless network form mobile ad hoc networks with mobile nodes with connectivity to the wireless network. The moving directions for the mobile nodes are determined. If the mobile nodes are traveling in substantially the same direction the ad hoc network is formed. The mobile nodes then exchange capabilities. If a mobile node without connectivity to a particular network determines that another mobile node in the ad hoc network is connected to the network, the mobile node without connectivity can tunnel data to the network through the other mobile node.
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Citations
14 Claims
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1. A method for determining, in a mobile node, whether to join a wireless network, comprising:
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receiving a first broadcast message via a wireless ad hoc network from at least one other mobile node, wherein the first broadcast message includes a network identifier and a moving direction for the at least one other mobile node;
wherein the moving direction is embedded in the network identifier of the first broadcast message;determining the moving direction of the mobile node, and comparing the moving direction of the mobile node to the moving direction of the at least one other mobile node; connecting to the at least one other mobile node via the wireless ad hoc network in response to a determination that the moving direction of the mobile node is substantially the same as the moving direction of the at least one other mobile node; and determining that the mobile node is unable to connect to a wireless cellular network via the at least one other mobile node; in response to said determining that the mobile node is unable to connect to a wireless cellular network, sending a request message to the at least one other mobile node that is a tunnel end mobile node, the request message requesting network types to which the at least one other mobile node is connected; and employing the at least one other mobile node to exchange data with the wireless cellular network in response to a determination that the at least one other mobile node is connected to the wireless cellular network. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A mobile device, comprising:
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a wireless ad hoc network interface configured to receive a first broadcast message including a network identifier from at least one other mobile device, wherein the network identifier includes a moving direction for the at least one other mobile device and wherein the moving direction is embedded in the network identifier of the first broadcast message; a processor configured to; receive data describing the moving direction of the mobile device from a direction finding apparatus; compare the moving direction of the mobile device to the moving direction of the at least one other mobile device, join the wireless ad hoc network in response to a determination that the moving direction the mobile device is substantially the same as the moving direction of the at least one other mobile device, determine that the mobile device is unable to connect to the wireless cellular network, in response to the determining that the mobile node is unable to connect to a wireless cellular network, send a request message to the at least one other mobile device that is a tunnel end mobile device, the request message requesting network types to which the least one other mobile device is connected, and employ the at least one other mobile device to exchange data with the wireless cellular network in response to a determination that the at least one other mobile device is connected to the wireless cellular network. - View Dependent Claims (9, 10, 11, 12, 13, 14)
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Specification