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Method, device and system for synchronizing of data providing for the handling of an interrupted synchronization process

  • US 9,792,343 B2
  • Filed: 11/08/2002
  • Issued: 10/17/2017
  • Est. Priority Date: 09/03/2002
  • Status: Active Grant
First Claim
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1. A method comprising:

  • sending from a first device to a second device an alert for resuming signal containing information related to a request for the resumption of a previous incomplete synchronization session;

    receiving from the second device, at the first device, a status for the alert for resuming signal indicative of information related to a synchronization type to be carried out, wherein if said request is accepted, said synchronization type is a same synchronization type carried out during said previous incomplete synchronization session, wherein the alert and the status for the alert comprise numbered messages, such that the first device and the second device both have a consistent view of a message number for each numbered message;

    establishing a communication connection for synchronization of data between the first device and the second device each comprising a set of data to be synchronized;

    transmitting by the first device to the second device a first update identifier and a second update identifier, said first update identifier denoting a preceding complete synchronization event performed between said first device and said second device, a value of said first update identifier being stored at least in said first device, said second update identifier denoting a preceding incomplete synchronization event started between said first device and said second device, a value of said second update identifier stored at least in said first device;

    retrieving or forming an indication of data that has been successfully synchronized during said preceding incomplete synchronization event;

    using said indication, synchronizing data that has not been successfully synchronized during said preceding incomplete synchronization event; and

    at least in said first device, updating said value of said first update identifier with said value of said second update identifier, wherein the first update identifier and the second update identifier comprise numbered messages, such that the first device and the second device both have a consistent view of a message number for each numbered message.

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