Communications service searching in multi-band wireless communications devices and methods
First Claim
1. A method in a wireless communications device capable of operating in more than one mode, the method comprising:
- searching for service in all modes during at least one common search period;
reducing power consumption in the wireless communications device by searching for service in less than all modes during search periods other than the at least one common search period.
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Accused Products
Abstract
A method in a multi-mode wireless communications device including initializing a counter (410), for example, upon changing location areas or attaching to a roaming network, scanning for service in all modes (440) of the multi-mode wireless communications device during at least one common search period, and after scanning for service in all modes of the multi-mode wireless communications device during the at least one common search period, scanning for service in each mode during subsequent search periods (450), wherein the multi-mode wireless communications device scans for service in not more than one mode during each of the subsequent search periods.
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Citations
20 Claims
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1. A method in a wireless communications device capable of operating in more than one mode, the method comprising:
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searching for service in all modes during at least one common search period;
reducing power consumption in the wireless communications device by searching for service in less than all modes during search periods other than the at least one common search period. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A method in a wireless communications device capable of operating in first and second modes, the method comprising:
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attaching to a network;
scanning for service in both the first and second modes during at least one common search period after attaching to the network;
after scanning for service in both the first and second modes during the at least one common search period, scanning for service in the first and second modes during subsequent search periods, wherein the wireless communications device scans for service in not more than one of the first and second modes during each of the subsequent search periods. - View Dependent Claims (8, 9, 10)
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11. A method in a multi-mode wireless communications device, the method comprising:
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scanning frequencies of a first mode;
scanning frequencies of a second mode;
alternately scanning the frequencies of the first and second modes during corresponding scanning periods, wherein the wireless communications device scans frequencies in not more than one mode during each of the corresponding scanning periods. - View Dependent Claims (12, 13, 14, 15)
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16. A method in a multi-mode wireless communications device, the method comprising:
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registering in a roaming network;
scanning for service in all modes of the multi-mode wireless communications device during at least one common search period after registering in the roaming network;
after scanning for service in all modes of the multi-mode wireless communications device during the at least one common search period, scanning for service in each mode during subsequent search periods, wherein the multi-mode wireless communications device scans for service in not more than one mode during each of the subsequent search periods. - View Dependent Claims (17, 18, 19, 20)
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Specification