Patent ID: 8767660
Filing Date: 2014-07-01
Classification: H04L,H04W

Abstract:
1. A method for releasing resources, comprising: an Evolved Packet Core (EPC) receiving a detach request from a User Equipment (UE), wherein the detach request carries a Detach Type of the UE; the EPC informing an evolved Node Base (eNB) corresponding to the UE of the Detach Type, wherein the EPC sends a UE CONTEXT RELEASE COMMAND message to the eNB, and wherein the UE CONTEXT RELEASE COMMAND message carries the Detach Type by the following manners: in the situation that the Detach Type is switch off, the UE CONTEXT RELEASE COMMAND message carries (i) an Information Element Cause (IE Cause): switch off detach or (ii) an IE Cause: detach, and carries a sub-IE Detach Type: switch off; in the situation that the Detach Type is normal, the UE CONTEXT RELEASE COMMAND message carries (i) an IE Cause: normal detach, or (ii) an IE Cause: detach, and sub-IE Detach Type: normal; and the eNB cancelling to send a Radio Resource Control (RRC) Connection Release message to the UE in the situation that the Detach Type is switch off; and the eNB sending the RRC Connection Release message to the UE in the situation that the Detach Type is normal.