Apparatus and method for efficient generation of delta files for over-the-air upgrades in a wireless network

An incremental file and file technology, applied in the field of wireless communication, can solve problems such as unfavorable incremental files and executable file changes, and achieve the effect of reducing the number of write operations

Inactive Publication Date: 2007-07-18
SAMSUNG ELECTRONICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Thus, relatively small changes in the software result in large changes in the output executable
These properties are very unfavorable for the generation of incremental files for FOTA applications

Method used

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  • Apparatus and method for efficient generation of delta files for over-the-air upgrades in a wireless network
  • Apparatus and method for efficient generation of delta files for over-the-air upgrades in a wireless network
  • Apparatus and method for efficient generation of delta files for over-the-air upgrades in a wireless network

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Embodiment Construction

[0037] 1 through 4, discussed below, and the various embodiments used to describe the principles of the invention in this patent document are by way of illustration only and should not be construed in any way to limit the scope of the invention. Those skilled in the art will understand that the principles of the invention may be implemented in any suitably arranged wireless network.

[0038] Figure 1 illustrates an exemplary wireless network 100 in which a space efficient delta generation algorithm may be used to upgrade mobile stations in accordance with the principles of the present invention. The present invention is implemented in an upgrade server (not shown) coupled to wireless network 100 via the Internet or similar wide area IP network. Alternatively, the upgrade server may be coupled to wireless network 100 via the Public Switched Telephone Network (PSTN).

[0039] Wireless network 100 includes a plurality of cell sites 121-123, each comprising one of base stations B...

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Abstract

A method of generating a composite delta file based on the differences between an original file and an upgraded file. The method comprises the steps of: 1) segmenting the original binary file into segments of size N; 2) segmenting the upgraded binary file into segments of size N; 3) detecting a first set of differences between a first segment from the original binary file and a first segment from the upgraded binary file; and 4) generating a first delta file from the detected first set of differences. The method further comprises the steps of: 4) detecting a second set of differences between a second segment from the original binary file and a second segment from the upgraded binary file; and 5) generating a second delta file from the detected second set of differences. The first and second delta files are combined to form the composite delta file.

Description

technical field [0001] The present invention relates generally to wireless communications, and more particularly to techniques for efficiently generating delta files for over-the-air upgrades of wireless mobile stations. Background technique [0002] Wireless service providers and wireless device manufacturers are constantly looking for new ways to deliver wireless devices and services that are as convenient, user friendly and affordable as possible. An important aspect of these efforts involves over-the-air (OTA) upgrades of wireless mobile stations, such as cellular telephones, wireless personal digital assistants (PDAs), wireless portable computers, two-way pagers, and the like, as well as fixed wireless terminals. Over-The-Air (OTA) upgrades (sometimes referred to as firmware over-the-air upgrades) are a relatively new method that enables mobile station users to download and install updated software, including patches, bug fixes, etc. ) and updated versions of software,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B7/26
Inventor 萨德欣德拉·P·赫勒瓦尼·巴德哈蒂
Owner SAMSUNG ELECTRONICS CO LTD
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