Qualcomm Incorporated

Manasi D Gandhi

Reza Shahidi

Arvind Swaminathan

James A Hutchison, Iv

Gregory Lie

Parag Mohan Kanade

Shivank Nayak

Lijun Lin

Robert Shuicheong Chan

Wei Qi

Kishore Srirambhatla

Alok Sharma

Gregory R Lie

James A Iv Hutchison

Robert K Chan

Methods and apparatuses are provided that facilitate avoiding one or more wireless communication systems based at least in part on determining a level of unreliability of a reverse link channel related to a system. This can be based at least in part on determining whether the system can be accessed over the reverse link channel. If not, the wireless communication system can be avoided to conserve power utilized to perform such access attempts. Where the unreliability is temporary, however, some access attempts can be performed for systems of higher priority than a current system during the period of avoidance of one or more higher priority systems.

Method and apparatus for selecting wireless communication systems

Apparatus and methods are described herein for detecting pilot signals. An access terminal determines whether each pilot signal in its active set can be tracked. If not, the access terminal adjusts the search window center associated with any untracked pilot to a position that allows tracking. In some aspects, a known search window center of a tracked member of a same pilot group may be used.

Apparatus and method of searching multi-carrier active set pilots

Disclosed are systems, methods and computer program products for better system reselection (BSR) in a multi-system wireless communication environment. In one aspect, the BSR procedure provisions a mobile device to determine if a currently-registered wireless communication system is the most-preferred system among systems of a similar technology and among systems of different technologies identified in the device's combined preferred roaming list (PRL). The mobile device then activates an intra-system BSR timer if the currently-registered system is not the most-preferred system among systems of similar technology and an inter-system BSR timer if the currently-registered system is not the most-preferred system among systems of different technologies. Upon expiration of the intra-system BSR timer, the mobile device searches for a more-preferred system among systems of similar technology. Upon expiration of the inter-system BSR timer, the mobile device searches for a more-preferred system among systems of different technologies.

Better system reselection in multi-system wireless communication environment

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San Diego, CA, United States of America

Manasi D Gandhi