Invention Grant
- Patent Title: Switching of uplink user plane termination point of a serving gateway for a bearer in dual connectivity operation
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Application No.: US15127063Application Date: 2015-03-10
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Publication No.: US11019546B2Publication Date: 2021-05-25
- Inventor: Philippe Godin
- Applicant: Alcatel Lucent
- Applicant Address: FR Boulogne-Billancourt
- Assignee: Alcatel Lucent
- Current Assignee: Alcatel Lucent
- Current Assignee Address: FR Boulogne-Billancourt
- Agency: Harness, Dickey & Pierce, P.L.C.
- Priority: EP14305390 20140319
- International Application: PCT/EP2015/054948 WO 20150310
- International Announcement: WO2015/140006 WO 20150924
- Main IPC: H04W36/28
- IPC: H04W36/28 ; H04W76/15 ; H04W36/00 ; H04W36/22

Abstract:
Methods and apparatuses are provided to facilitate switching of an uplink serving gateway termination point of a bearer that is offloaded from a master eNodeB (MeNB) to a secondary eNodeB (SeNB) in a dual connectivity operation. A signal is transmitted to the SeNB, via the MeNB, that includes addressing information of a new uplink serving gateway (S-GW) user plane termination point for the offloaded bearer. The addressing information is transmitted via the MeNB to the SeNB in a modification request message, such as an evolved radio access bearer (E-RAB) modification request message, and may include Internet Protocol (IP) addressing information and a Tunnel Endpoint Identifier (TEID).
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Information query