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:
Jan. 24, 2012
Filed:
Apr. 28, 2006
Abhishek Abhishek, Woodinville, WA (US);
Yue Chen, Bellevue, WA (US);
Hui Shen, Issaquah, WA (US);
Jiandong Ruan, Sammamish, WA (US);
Taroon Mandhana, Redmond, WA (US);
Yi LU, Bellevue, WA (US);
Abhishek Abhishek, Woodinville, WA (US);
Yue Chen, Bellevue, WA (US);
Hui Shen, Issaquah, WA (US);
Jiandong Ruan, Sammamish, WA (US);
Taroon Mandhana, Redmond, WA (US);
Yi Lu, Bellevue, WA (US);
Microsoft Corporation, Redmond, WA (US);
Abstract
Systems and methods for handling a transition of a roaming mobile user device (i.e., a roaming client) from one access point (AP) to a target AP, referred to herein as soft inter-AP handoff. This technique involves a second mobile user device that is already connected with the target AP, called a roaming coordinator, assisting in handoff coordination between the APs. This coordination includes assisting the roaming client in establishing a client-to-client connection to relay data traffic during the handoff, while the roaming client establishes a connection with the target AP using traditional techniques. Soft inter-AP handoff allows a faster hand-off between APs than traditional techniques, and may reduce jitter in communications with the roaming device during the transition.