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. 02, 2015
Filed:
Nov. 09, 2012
Mohamed Khalil, Murphy, TX (US);
Haseeb Akhtar, Garland, TX (US);
Mohamed Khalil, Murphy, TX (US);
Haseeb Akhtar, Garland, TX (US);
Microsoft Technology Licensing, LLC, Redmond, WA (US);
Abstract
Various embodiments are described to assist in reducing handoff delays and the blackout period(s) associated with inter AN (access network) hard handoffs. The hard handoff procedure of method disclosed herein establishes or initiates a connection (A10-type connection) between a target AN and a packet data serving node (PDSN), unlike known hard handoff approaches that wait until traffic channel assignment to establish or initiate such connection. The PDSN may optionally bicast data packets to both the source and target ANs since each is communicatively coupled to the PDSN during a given time period. In the event bicasting is unavailable or unused, a communication tunnel between the source and target ANs may be created and used to transmit data packets between them.