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:
May. 22, 2012
Filed:
Oct. 02, 2007
Ranveer Chandra, Kirkland, WA (US);
Christos Gkantsidis, Cambridge, GB;
Ratul Mahajan, Seattle, WA (US);
Antony Ian Taylor Rowstron, Cambridge, GB;
Alastair Wolman, Seattle, WA (US);
Yongqiang Xiong, Beijing, CN;
Ranveer Chandra, Kirkland, WA (US);
Christos Gkantsidis, Cambridge, GB;
Ratul Mahajan, Seattle, WA (US);
Antony Ian Taylor Rowstron, Cambridge, GB;
Alastair Wolman, Seattle, WA (US);
Yongqiang Xiong, Beijing, CN;
Microsoft Corporation, Redmond, WA (US);
Abstract
A dual mode communication device utilizes a control channel to exploit diversity, history, and context in advance of establishing a broadband data exchange session on a broadband but shorter range wireless data channel, maximizing productive use of such a session. Appropriate diversity for the negotiated session further enhance data transfer, including path diversity, radio technology diversity (e.g., WiMax, Wi-Fi, ultra wideband, Bluetooth), antenna diversity (e.g., MIMO), modulation diversity (e.g., rate selection for 802.11, or symbol length selection to combat multi-path fading), and frequency diversity (e.g., 2.4 GHz versus 5 GHz). Historical information about channel characteristics optimize the selection of channel parameters with respect to the diversity choices. In addition, context information such as location and speed can be used to categorize the historical information that is collected to further optimize channel parameters.