Method and device for processing inter-system reselection or switch
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United States of America Patent
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Dec 5, 2017
Grant Date -
Sep 29, 2016
app pub date -
Jan 9, 2014
filing date -
Jun 3, 2013
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Abstract
The present invention discloses a processing method and device for reselecting or switching UE from a TD-SCDMA system to a TD-LTE system. The method includes: receiving, by a PGW, a modify bearer request message sent by an SGW; obtaining, by the PGW, an S5/S8 interface resource in current bearer context information, updating the bearer context information according to the modify bearer request message, and obtaining an S5/S8 interface resource in the updated bearer context information; when the PGW determines that the S5/S8 interface resource changes according to the S5/S8 interface resource in the updated bearer context information and the interface resource in the current bearer context information, sending back, by the PGW, a modify bearer response message carrying the S5/S8 interface resource in the updated bearer context information to the SGW, for enabling the SGW to update the bearer context information according to the modify bearer response message. In the present invention, the scenarios supported by the existing protocol are perfected, and support is provided for reselecting or switching the UE from the TD-SCDMA system to the TD-LTE system and processing under scenarios in which the S5/S8 interface and the Gn/Gp interface are in different networks.
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