Method, apparatus and computer program providing for rapid network selection in a multimode device
First Claim
Patent Images
1. A method to perform system selection with a mobile station, comprising:
- invoking an overlay function;
determining if a set of overlay parameters specify that a higher priority system is to be acquired; and
if so, initiating a scan to attempt to acquire the higher priority system using higher priority system-related overlay parameters, else attempting to acquire a lower priority system.
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Abstract
A mobile station includes at least one radio frequency transceiver, a data processor and a memory coupled to the data processor. The memory stores information that includes an overlay function and overlay parameters for use by the data processor to perform system selection by invoking the overlay function to determine if the overlay parameters specify that a home system is to be acquired and, if so, to initiate a scan using the transceiver to attempt to acquire the home system using home system-related overlay parameters, else attempting to acquire a non-home system.
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Citations
74 Claims
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1. A method to perform system selection with a mobile station, comprising:
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invoking an overlay function;
determining if a set of overlay parameters specify that a higher priority system is to be acquired; and
if so, initiating a scan to attempt to acquire the higher priority system using higher priority system-related overlay parameters, else attempting to acquire a lower priority system. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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- 16. A mobile station comprising at least one radio frequency transceiver, a data processor and a memory coupled to the data processor, the memory storing information comprising an overlay function and overlay parameters for use by the data processor to perform system selection by invoking the overlay function to determine whether the overlay parameters specify that a higher priority system is to be acquired and, if so, to initiate a scan using the transceiver to attempt to acquire the higher priority system using higher priority system-related overlay parameters, else attempting to acquire a lower priority system.
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32. A computer program stored on a computer readable medium the execution of which by a processor of a mobile station performs system selection by operations that comprise:
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invoking an overlay function;
determining if a set of overlay parameters specify that a higher priority system is to be acquired; and
if so, initiating a scan to attempt to acquire the higher priority system using higher priority system-related overlay parameters, else attempting to acquire a lower priority system. - View Dependent Claims (33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49)
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- 50. A multimode mobile station comprising at least one radio frequency transceiver means, data processor means and memory means coupled to the data processor means, the memory means storing information comprising an overlay function and overlay parameters for use by the data processor means to perform system selection by invoking the overlay function to determine if the overlay parameters specify that a higher priority system is to be acquired and, if so, to initiate a scan using the transceiver means to attempt to acquire the higher priority system using higher priority system-related overlay parameters, else attempting to acquire a lower priority system, where if the attempt to acquire the higher priority system is not successful, the data processor means executes the overlay function to attempt to acquire the lower priority system, and where after acquiring the lower priority system, execution of the overlay function further comprises making a determination if the overlay parameters specify that the mobile station is to perform a background scan for the higher priority system and, if so, using the transceiver means to periodically scan for the higher priority system in an attempt to acquire the higher priority system.
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58. A method to perform system selection with a mobile station, comprising:
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invoking an overlay function;
determining if a set of overlay parameters specify that a higher priority system is to be acquired; and
if so, initiating a scan to attempt to acquire the higher priority system using higher priority system-related overlay parameters, else attempting to acquire a lower priority system, further comprising changing a content of the overlay parameters with information transmitted to the mobile station. - View Dependent Claims (59, 60)
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61. A method for performing system selection with a mobile station, comprising:
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a step for invoking an overlay function;
a step for determining if a set of overlay parameters specify that a higher priority system is to be acquired; and
if so, a step for initiating a scan to attempt to acquire the higher priority system using higher priority system-related overlay parameters, else executing a step for attempting to acquire a lower priority system. - View Dependent Claims (62, 63, 64)
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- 65. A data structure for storage in a memory medium readable by a data processor of a multimode mobile station for use by a system selection overlay function, said data structure comprising information for specifying whether the overlay function, after being invoked, is to first scan for a higher priority system or is to first scan for a lower priority system, the information further comprising system acquisition-related parameters.
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72. A computer program stored on a computer readable medium the execution of which by a processor of a multimode mobile station performs system selection by operations that comprise:
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invoking a current configuration of a configurable overlay function;
determining from the current configuration a set of overlay parameters that specify how a system is to be acquired; and
initiating a scan to attempt to acquire the system using the set of overlay parameters of the current configuration.
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- 73. A multimode mobile station comprising at least one radio frequency transceiver means, data processor means and memory means coupled to the data processor means, the memory means storing information comprising an overlay function that is dynamically configured with a current configuration, and overlay parameters for use by the data processor means to perform system selection by invoking the current configuration of the overlay function to initiate a scan using the transceiver means to attempt system acquisition using the overlay parameters and the current configuration.
Specification