MOBILE COMMUNICATION SYSTEM

• US 20170150404A1
• Filed: 02/07/2017
• Published: 05/25/2017
• Est. Priority Date: 11/04/2011
• Status: Active Grant

• Current Assignee: Mitsubishi Electric Corporation
• Original Assignee: Mitsubishi Electric Corporation
• Inventors: MAEDA, Miho, MOCHIZUKI, Mitsuru, UGA, Shinsuke, IWANE, Yasushi, FUKUI, Noriyuki
• Granted Patent: US 10,609,602 B2
• Time in Patent Office: Days
• CPC Class Codes: H04B 7/2606 Arrangements for base station coverage control, e.g. by using relays in tunnels
• CPC Class Codes: H04W 16/26 Cell enhancers or enhancement, e.g. for tunnels, building shadow
• CPC Class Codes: H04W 36/0011 for data sessions of end-to-end connection
• CPC Class Codes: H04W 36/0016 Hand-off preparation specially adapted for end-to-end data sessions
• CPC Class Codes: H04W 36/00835 Determination of neighbour cell lists
• CPC Class Codes: H04W 36/06 Reselecting a communication resource in the serving access point
• CPC Class Codes: H04W 36/08 Reselecting an access point
• CPC Class Codes: H04W 36/32 by location or mobility data, e.g. speed data
• CPC Class Codes: H04W 76/10 Connection setup
• CPC Class Codes: H04W 84/005 Moving wireless networks
• CPC Class Codes: H04W 84/047 using dedicated repeater stations
• CPC Class Codes: H04W 88/04 adapted for relaying to or from another terminal or user

Abstract

A mobile communication system includes a movable user equipment device, a plurality of base station devices configured to perform radio communication with the user equipment device, and a relay device movably configured to relay radio communications between the user equipment device and the base station devices. In a handover process of switching a base station device to be connected with the relay device from a base station device being a moving source to a base station device being a moving destination along with moving of the relay device, the base station device being a moving source selects the base station device being a moving destination from base station devices other than a base station device that does not have a function supporting the relay device, and performs the handover process such that the relay device is connected to the selected base station device.

Claims

1. (canceled)

2. A mobile communication system comprising a movable user equipment device, a plurality of base station devices configured to perform radio communication with said user equipment device, and a relay device movably configured to relay radio communications between said user equipment device and said base station devices,

wherein in a handover process of switching a base station device to be connected with said relay device from a base station device being a moving source to a base station device being a moving destination along with moving of said relay device, said base station device being a moving source selects said base station device being a moving destination from base station devices other than a base station device that does not have a function supporting said relay device, and performs said handover process such that said relay device is connected to the selected base station device.

3. The mobile communication system according to claim 2, comprising a plurality of said relay devices,

wherein between said plurality of relay devices, different subframes are used for subframes of a communication frame for use in an access link from said user equipment device to said relay device and for subframes of a communication frame for use in a backhaul link from said relay device to said base station device.