Invention Grant
- Patent Title: Handover handling
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Application No.: US14643642Application Date: 2015-03-10
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Publication No.: US09894567B2Publication Date: 2018-02-13
- Inventor: Jagdeep Singh Ahluwalia
- Applicant: NEC Corporation
- Applicant Address: JP Tokyo
- Assignee: NEC Corporation
- Current Assignee: NEC Corporation
- Current Assignee Address: JP Tokyo
- Agency: Wilmer Cutler Pickering Hale & Dorr
- Priority: GB0708455.1 20070501
- Main IPC: H04W36/00
- IPC: H04W36/00 ; H04W36/02 ; H04L1/16 ; H04L12/939

Abstract:
A system is proposed to provide handover in a mobile telecommunications environment, particularly applicable to 3GPP networks, which does not increase signalling overhead but minimizes user data loss during handover. In the modified system, PDCP SDUs with Sequence numbers are buffered and retransmitted as necessary. At the time of handover, SDUs not received by the user device are forwarded to the target base station for forward transmission to the UE. The handover procedure is designed to minimize packet loss while keeping to a minimum the duplication of packet transmission over the air interface.
Public/Granted literature
- US20150189555A1 HANDOVER HANDLING Public/Granted day:2015-07-02
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