User equipment and data connection recovery method thereof

  • US 10,284,419 B2
  • Filed: 06/06/2017
  • Issued: 05/07/2019
  • Est. Priority Date: 06/06/2017
  • Status: Active Grant
First Claim
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1. A data connection recovery method for use in an user equipment, the user equipment being connected with a base station, comprising:

  • (a) transmitting, by the user equipment, at least one UDP query packets to a robust server via the base station, wherein the robust server is a server which provides network services steadily;

    (b) determining, by the user equipment, that there is no response from the robust server during a default period after step (a);

    (c) determining, by the user equipment, that a data connection with a backhaul network is abnormal between the base station and the backhaul network based on the result of step (b);

    (d) transmitting, by the user equipment, a trigger packet to the backhaul network via the base station under non-access stratum protocol based on the result of step (c);

    (e) recovering, by the user equipment, the data connection with the backhaul network after step (d).

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