System and method for accelerating network selection by a wireless user equipment (UE) device
AssigneeResearch In Motion Limited
InventorsAdrian Buckley, Andrew Allen, Gregory Scott Henderson
Life of this patent
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Abstract
A system and method for accelerating network selection by a wireless user equipment (UE) device without having to perform a full band scan (FBS). In one exemplary embodiment, the wireless UE device is operable to scan in a network environment for discovering at least one network. Depending upon geographic region information decoded from the discovered network's identity information, a logic structure in the wireless UE device is operable to determine a subset of appropriate frequency data for selective scanning by said wireless UE device. Using the subset of appropriate frequency data, a selective scanning is performed for locating a network by the wireless UE device.
Claims17
A method for accelerating network selection by a wireless user equipment (UE) device, comprising:
- upon one of power-up and losing coverage of a network with which said wireless UE device was previously registered, scanning by said wireless UE device in at least one band of a plurality of bands identified according to respective radio access technologies as provisioned in a first local database structure;
- upon discovering at least one network via said scanning, decoding said at least one network's identity information, wherein said identity information comprises identification codes corresponding to at least one of a radio access network, a core network and a service network;
- and
- downloading a second database structure from the network based on said decoded identity information to determine a subset of appropriate frequency data for selective scanning by said wireless UE device, thereby avoiding a full band scan for locating a network.
A system for accelerating network selection by a wireless user equipment (UE) device, comprising:
- a component associated with said wireless UE device and configured, upon one of power-up and losing coverage of a network with which said wireless UE device was previously registered, to discover at least one network via scanning in at least one band of a plurality of bands identified according to respective radio access technologies as provisioned in a first local database structure;
- a component configured to decode said at least one network's identity information, wherein said identity information comprises identification codes corresponding to at least one of a radio access network, a core network and a service network;
- and
- a component configured to download a second database structure from the network based on said decoded identity information to determine a subset of appropriate frequency data for facilitating selective scanning by said wireless UE device, thereby avoiding a full band scan for locating a network.
A wireless device, comprising:
- a communications subsystem operable for scanning and for communicating over a plurality of bands;
- a logic structure operable, upon one of power-up and losing coverage of a network with which said wireless UE device was previously registered, to effectuate discovery of at least one network via scanning in at least one band of a plurality of bands identified according to respective radio access technologies as provisioned in a first local database structure;
- a logic structure for decoding said at least one network's identity information, wherein said identity information comprises identification codes corresponding to at least one of a radio access network, a core network and a service network;
- and
- a logic structure for downloading a second database structure from the network based on said decoded identity information to determine a subset of appropriate frequency data depending on decoded identity information, said subset of appropriate frequency data for facilitating selective scanning by said wireless device, thereby avoiding a full band scan for locating a network;
- wherein said logic structures comprise at least one of hardware, firmware, and software that is stored in a memory of the wireless device.
Dependencies are inferred from the claim text.