Method for reducing hand-off latency in mobile networks
First Claim
1. A method for hand-off of mobile devices between a plurality of access points comprising the steps of:
- receiving, at a first mobile device, connection information for establishing a wireless connection between the mobile device and one of the plurality of access points;
storing the received connection information;
transmitting the stored connection information from the first mobile device to one or more other mobile devices to assist the one or more other mobile devices in making a connection to the access point.
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Abstract
A method for use in a mobile device to expedite hand-off of mobile devices between access points first detects movement of the mobile device among the coverage ranges of the access points. A mobile device that moves from one access point to another periodically transmits information on the data link level connection of its new access point on the channel used to access its prior access point. A first mobile device that is coupled to access points in a particular area maintains network level access information for access points with which it has communicated. When a new mobile device enters the area, the first device detects the new device and transmits the list to the new mobile device, enabling the new device to connect to an access point without transmitting a router solicitation message or receiving a router advertisement message.
47 Citations
16 Claims
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1. A method for hand-off of mobile devices between a plurality of access points comprising the steps of:
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receiving, at a first mobile device, connection information for establishing a wireless connection between the mobile device and one of the plurality of access points;
storing the received connection information;
transmitting the stored connection information from the first mobile device to one or more other mobile devices to assist the one or more other mobile devices in making a connection to the access point. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A method for hand-off of mobile devices between a plurality of access points comprising the steps of:
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receiving, at a first mobile device connected to a current access point, connection information for establishing a wireless connection between the mobile device and one or more of the plurality of access points;
storing the received connection information;
transmitting stored connection information to establish a wireless connection between the mobile device and one of the current access point and a prior access point from the first mobile device to one or more other mobile devices to assist the one or more other mobile devices in making a connection to the current or prior access points. - View Dependent Claims (11, 12, 13, 14, 15)
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16. A method for hand-off of mobile devices between a plurality of access points comprising the steps of:
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receiving, at a first mobile device, network level connection information for establishing a level 3 connection between the mobile device and a current one of the plurality of access points;
storing the received network level connection information;
detecting when one or more mobile devices establish a data link level connection to the access point; and
transmitting the network level connection information from the first mobile device to one or more other mobile devices to assist the one or more other mobile devices in making a network level connection to the access point.
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Specification