Title:
RADIO COMMUNICATION SYSTEM, AND ENB AND CONTROL METHOD THEREOF
Document Type and Number:
Japanese Patent JP2017175655
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To contribute to reduction in useless signaling when user equipment (UE) moves between cells in a C/U-plane split scenario.SOLUTION: A source master eNB (S-MeNB) transmits a first message on a handover request to a target MeNB (T-MeNB). The first message includes an address of a secondary eNB (SeNB) and a UE identifier provided by the SeNB. The first message further includes at least one of a security key of the SeNB, an identifier of an E-RAB of the SeNB, a QoS parameter of the E-RAB, and S1 GTP tunnel endpoint information. The S-MeNB receives a first response from the T-MeNB after transmission of the first message, and transmits a second message on RRC connection reconfiguration to user equipment (UE) for handover.SELECTED DRAWING: Figure 7
Inventors:
AMINAKA HIROAKI
FUTAKI TAKASHI
FUTAKI TAKASHI
Application Number:
JP2017109053A
Publication Date:
September 28, 2017
Filing Date:
June 01, 2017
Export Citation:
Assignee:
NEC CORP
International Classes:
H04W36/28; H04W16/32; H04W36/04; H04W72/04; H04W92/20
Domestic Patent References:
| JP6160629B2 | 2017-07-12 |
Other References:
SAMSUNG: "Handover enhancement", 3GPP TSG-RAN WG3#87 R3-150134, JPN6018016796, 31 January 2015 (2015-01-31), FR, pages Paragraph 2.1
Attorney, Agent or Firm:
Ken Ieiri