The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 26, 2012
Filed:
May. 04, 2011
Rashid Ahmed Akbar Attar, San Diego, CA (US);
Durga Prasad Malladi, San Diego, CA (US);
Francesco Grilli, La Jolla, CA (US);
Kirti Gupta, La Jolla, CA (US);
Lorenzo Casaccia, Rome, IT;
Nathan Edward Tenny, Poway, CA (US);
Oronzo Flore, Ostuni, IT;
Rashid Ahmed Akbar Attar, San Diego, CA (US);
Durga Prasad Malladi, San Diego, CA (US);
Francesco Grilli, La Jolla, CA (US);
Kirti Gupta, La Jolla, CA (US);
Lorenzo Casaccia, Rome, IT;
Nathan Edward Tenny, Poway, CA (US);
Oronzo Flore, Ostuni, IT;
QUALCOMM Incorporated, San Diego, CA (US);
Abstract
An inter-system handover system for a wireless communication system supports hand-down and hand-up of user equipment (UE) to different radio access technologies, including synchronous and asynchronous systems. Latency and handover connection failures are reduced by an access node (nodeB) broadcasting information about neighboring systems (targets) when the UE reception (RX) capability is both inside or outside the reception range of the target. A single RX chain is sufficient, although transitioning between a wireless wide area network (WWAN) to a wireless local area network may (WLAN) may advantageously benefit from simultaneous operation on two Rx chains. Optimized list of neighboring RAT systems (targets) are broadcast from the network, including measurement parameters and reporting instructions. Thereby, UE-driven reporting minimizes latencies. UE reports other-system searches to network only if needed for a handover. In addition, handover requests can be bundled with other-system measurement information, if necessary, for additional efficiencies.