System and method for establishing and/or maintaining a data session across packet data networks
First Claim
1. A method for selecting a communication system to be used by a mobile unit to conduct a data session, the method comprising:
- a) determining a set of valid communication systems available to the mobile unit, the set of valid communication systems including at least two disparate types of communication systems;
b) selecting a communication system from the set of valid communication systems.
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Accused Products
Abstract
A communication system selection algorithm (SSA) implemented by a mobile station chooses between available systems to select a system to serve the mobile station. During initialization, the SSA causes the mobile station to scan the environment and compare available communication systems to determine the best system to provide service. After an initial system is chosen, the SSA causes the mobile station to continuously, or at discrete time intervals, scan the environment for available systems, thus allowing for a seamless switch to an available system whenever a handoff is desired. The SSA chooses the best available system based on conditions such as bit rate and cost of each available system and applying preference rules defined by a service provider and/or user of the mobile station.
189 Citations
30 Claims
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1. A method for selecting a communication system to be used by a mobile unit to conduct a data session, the method comprising:
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a) determining a set of valid communication systems available to the mobile unit, the set of valid communication systems including at least two disparate types of communication systems;
b) selecting a communication system from the set of valid communication systems. - 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)
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Specification