Apparatus and method for performing network scanning using black-list network information
First Claim
Patent Images
1. A method for execution in a mobile device, the method comprising:
- scanning for wireless networks, using a first Radio Access Technology (RAT), within at least one of a plurality of frequency blocks of a frequency band associated with the first RAT;
upon finding a network within a given frequency block of the frequency band, obtaining network identification information for the network;
if the network identification information is included in black-list network information of the mobile device, determining that the first RAT is barred for a current location of the mobile device;
aborting the scanning for wireless networks on the first RAT and skipping scanning for wireless networks on any other RAT associated with the first RAT; and
scanning for wireless networks, using a second RAT other than the first RAT and any other RAT associated with the first RAT, on frequency blocks other than the given frequency block prior to scanning on the given frequency block.
4 Assignments
0 Petitions
Accused Products
Abstract
An apparatus and method is provided for making use of black-list network information to make scanning more efficient in multi-mode mobile devices. When performing a scan for a network, if a network that is blacklisted is found, scanning is discontinued for any network that has the same radio access technology as the network that was found. Thus, excessive scanning that can be costly for the mobile device in terms of battery life and responsiveness to provide service, is avoided.
34 Citations
21 Claims
-
1. A method for execution in a mobile device, the method comprising:
-
scanning for wireless networks, using a first Radio Access Technology (RAT), within at least one of a plurality of frequency blocks of a frequency band associated with the first RAT; upon finding a network within a given frequency block of the frequency band, obtaining network identification information for the network; if the network identification information is included in black-list network information of the mobile device, determining that the first RAT is barred for a current location of the mobile device; aborting the scanning for wireless networks on the first RAT and skipping scanning for wireless networks on any other RAT associated with the first RAT; and scanning for wireless networks, using a second RAT other than the first RAT and any other RAT associated with the first RAT, on frequency blocks other than the given frequency block prior to scanning on the given frequency block. - View Dependent Claims (2, 3, 4, 5, 6, 7)
-
-
8. A non-transitory computer readable medium having stored thereon computer executable instructions that when executed by a processor of a mobile device implement a method comprising:
-
scanning for wireless networks, using a first Radio Access Technology (RAT), within at least one of a plurality of frequency blocks of a frequency band associated with the first RAT; upon finding a network within a given frequency block of the frequency band, obtaining network identification information for the network; if the network identification information is included in black-list network information of the mobile device, determining that the first RAT is barred for a current location of the mobile device; aborting the scanning for wireless networks on the first RAT and skipping scanning for wireless networks on any other RAT associated with the first RAT; and scanning for wireless networks, using a second RAT other than the first RAT and any other RAT associated with the first RAT, on frequency blocks other than the given frequency block prior to scanning on the given frequency block. - View Dependent Claims (9, 10, 11, 12, 13, 14)
-
-
15. A mobile device comprising:
-
a wireless access radio configured for communicating with wireless networks; a processor; and a network scan function configured for; scanning for wireless networks, using a first Radio Access Technology (RAT), within at least one of a plurality of frequency blocks of a frequency band associated with the first RAT; upon finding a network within a given frequency block of the frequency band, obtaining network identification information for the network; if the network identification information is included in black-list network information of the mobile device, determining that the first RAT is barred for a current location of the mobile device; aborting the scanning for wireless networks on the first RAT and skipping scanning for wireless networks on any other RAT associated with the first RAT; and scanning for wireless networks, using a second RAT other than the first RAT and any other RAT associated with the first RAT, on frequency blocks other than the given frequency block prior to scanning on the given frequency block. - View Dependent Claims (16, 17, 18, 19, 20, 21)
-
Specification