User equipment tracing method and system, access device, and access controller
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United States of America Patent
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Sep 26, 2017
Grant Date -
Jul 9, 2015
app pub date -
Mar 18, 2015
filing date -
Sep 19, 2012
priority date (Note) -
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status (Latency Note)
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Abstract
Embodiments of the present invention provide a user equipment tracing method and system, an access device, and an access controller. The method includes: sending, by an access device, a query request message to an access controller, where the query request message includes a user equipment identifier, so that the access controller queries a tracing task list according to the user equipment identifier, determines that the tracing task list includes the user equipment identifier, and sends a query response message to the access device, where the query response message includes a tracing identifier and/or the user equipment identifier; and receiving, by the access device, the query response message sent by the access controller, and if it is determined that the query response message includes the tracing identifier, performing a signaling tracing operation on the user equipment.
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