| Patent application number | Description | Published |
|---|
| 20090289601 | METHOD AND APPARATUS FOR SYSTEM ACQUISITION WHILE MAINTAINING A DEFINED BATTERY LIFE SPAN - A method and an apparatus for system acquisition at a wireless device while maintaining a predetermined battery life span, include determining a level of remaining battery power upon entering an out of service state. A duty cycle, comprising a search time and sleep time, of acquisition attempts is determined such that the level of remaining battery power lasts for the defined battery life span. The duty cycle is determined by adjusting at least one of the search time and the sleep time, depending on how long the remaining battery power is required to last. | 11-26-2009 |
| 20090291683 | METHOD AND APPARATUS FOR CHANNEL SCANNING THAT IMPROVES ACQUISITION PROBABILITY AND POWER CONSUMPTION - A method and apparatus for channel acquisition using a mobile station include obtaining geographic information of at least one wireless communication systems using one or more systems, respectively. The one or more channels are prioritized on a preferred roaming list based on the geographic information, and it is determined whether any of the prioritized one or more channels on the preferred roaming list are also on a most recently used (MRU) list. The mobile station attempts to acquire at least one of the prioritized one or more channels that is also on the MRU list. | 11-26-2009 |
| 20100178919 | OPTIMUM TECHNOLOGY SELECTION - Systems and methodologies are described that facilitate optimum technology selection within multi-modal configurations. A multi-mode mobile device can select and/or utilize a particular technology, system and/or configuration to provide optimal quality of service (QOS) in terms of various characteristics. For instance, an optimum technology can be selected and employed for a service request based upon performance, cost, power consumption, interference levels, and the like. The multi-modal mobile device can obtain characteristics of a plurality of technologies during idle states. The characteristics can be analyzed in order to generate a QOS table that provides relative rankings of the plurality of technologies in terms of service request type and the obtained characteristics. The QOS table can be utilized to select an optimum technology upon initiation of a service request. | 07-15-2010 |
| 20100234021 | Scanning Channels While a Device is Out of Service - A channel scanning order is dynamically created, modified, selectively ignored, or combinations thereof based on historical data, motion information, context information, alert message systems, network reselection, or combinations thereof. If a less preferred network has served a mobile device longer than a threshold amount of time, acquisition of the less preferred network is attempted before attempting acquisition of a more preferred network. | 09-16-2010 |
| 20100246420 | Enhanced Channel Detection - An apparatus for detecting the presence of a frequency channel is provided. The apparatus comprises an energy detection unit configured to measure receive energy over a first bandwidth and a second energy detection unit configured to measure receive energy over a second bandwidth. The apparatus further comprises a processor configured to compare the measured receive energy over the first bandwidth to a first energy threshold, to compare the measured receive energy over the second bandwidth to a second energy threshold, and to detect the presence of the frequency channel when the measured receive energies over the first and second bandwidths are above the first and second energy thresholds, respectively. | 09-30-2010 |
