US 8,898,245 B2Granted

Extending memory capacity of a mobile device using proximate devices and unicasting

AssigneeInternational Business Machines Corporation

InventorsSandro Piccinini, Luigi Pichetti, Marco Secchi, Stefano Sidoti

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Abstract

An improved download capability for mobile devices, without requiring increasing of the local memory of such devices, by providing a set of multimedia devices with the capability to create a cooperative download grid where multiple instrumented devices can be aggregated together according to predefined profiles. This capability is useful in at least two different scenarios. The first is when a SIP enabled device must download a large file having a capacity that is larger than the available memory of the SIP device. The second is when a SIP enabled device must download a file but cannot be connected for a long enough time to accomplish the download. If the SIP device is in proximity to other compatible devices such as Voice over Internet Protocol (VoIP) or Session Initiation Protocol (SIP), these devices are operable to be dynamically aggregated to provide a download grid with multiprotocol support that allows optimized downloading.

Claims4

Dependent claims

A method for downloading a file to a device, comprising steps of:

receiving, at the device, a first portion of the file, with the file having a greater size than available memory within the device;
sending, by the device, the first portion of the file to a SIP (Session Initiated Protocol) device in physical proximity to the device while the downloading of the file to the device is still pending, wherein the first portion of the file is sent via a session initiated protocol (SIP) session established between the device and the SIP device;
receiving, by the device, the first portion of the file from the SIP device, wherein the first portion of the file is received via a session initiated protocol (SIP) session established between the device and the SIP device;
receiving, at the device, a second portion of the file;
and
sending, by the device, the second portion of the file to a non-SIP device in physical proximity to the device via a non-SIP session while the downloading of the file to the device is still pending.

3 more elements

Dependencies are inferred from the claim text.

Facts

Application: 13/437,249Filed 2 Apr 2012 · continuation
Priority: 9 Dec 2010
Published: US 2012/0150986 A126 Jul 2012
Granted: 25 Nov 2014
Term ends: Not estimatedThe source records don’t support an estimate.

Classification8 codes

H04L 67/06
Protocols: specially adapted for file transfer, e.g. file transfer protocol [FTP]
H04L 65/1104
Session protocols: session initiation protocol [SIP]
H04L 67/10
Protocols: in which an application is distributed across nodes in the network
H04L 67/52
Network services: specially adapted for the location of the user terminal