Patent
Conditional Handover Execution
Park Kyungmin,Dinan Esmael +1 more
- 27 Sep 2018
50
TL;DR: In this article, a wireless device receives from a first base station, a radio resource control message indicating a command of a conditional handover towards a target cell of a second base station.
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Abstract: A wireless device receives from a first base station, a radio resource control message indicating a command of a conditional handover towards a target cell of a second base station. The radio resource control message comprises: a cell identifier of the target cell; and at least one handover execution condition. The wireless device determines that at least one criteria of the at least one handover execution condition is met by the target cell of the second base station. The wireless device transmits to the first base station and in response to the determining that the at least one criteria is met, a first signal indicating a handover execution notification associated with the command of the conditional handover. The wireless device transmits to the second base station, a random access preamble via the target cell of the second base station.
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Citations
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Patent
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Masato Fujishiro,Fangwei Tong,Henry Chang +2 more
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TL;DR: In this paper, a handover command for instructing handover is transmitted from a source master base station to the user terminal, when the handover of a user terminal from the source master to a target base station is performed after communication in the dual connectivity scheme is started.
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Patent
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Kugo Morita,Hiroyuki Adachi +1 more
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TL;DR: In this paper, a base station according to a first aspect controls a cell, consisting of a transmitter configured to transmit a radio signal, a controller configured to perform discontinuous transmission in which the transmitter is discontinuously activated, and a receiver configured to receive a request for communication from a user terminal in the cell.
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Patent
Method and apparatus for handover in wireless communication system
Won-Ik Kim,Seokki Kim,Taegyun Noh,Yu Ro Lee,Kwang Jae Lim,Sung Cheol Chang,Soojung Jung,Seungkwon Cho +7 more
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TL;DR: In this article, a terminal executes a random access procedure with a target base station depending on a pre-random access channel (pre-RACH) command in a handover preparation step.
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