Method of handling radio link failure in wireless communication system based on multi-enb connectivity and apparatus thereof
AssigneeSamsung Electronics Co., Ltd.
InventorsAnshuman Nigam, Jung Min Moon, Jung Soo Jung, Sun Heui Ryoo, Sung Jin Lee
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Abstract
Methods and apparatuses are provided for a terminal in a wireless communication system supporting dual connectivity of a first base station and a second base station is provided. A radio link failure (RLF) associated with at least one cell of the second base station is detected. A failure message is transmitted to the first base station upon detecting the RLF.
Claims20
A method by a terminal in a wireless communication system supporting dual connectivity of a first base station and a second base station, the method comprising:
- receiving, from the first base station, a configuration message for adding the second base station;
- identifying expiration of a timer which starts upon detecting a predetermined number of consecutive out-of-syncs for a primary secondary cell (pSCell) of the second base station;
- detecting a radio link failure (RLF) for the second base station based on the expiration of the timer;
- and
- transmitting, to the first base station, a failure message including a failure type based on detecting the RLF for the second base station.
A method by a first base station in a wireless communication system supporting dual connectivity of the first base station and a second base station, the method comprising:
- transmitting, to a terminal, a configuration message for adding the second base station;
- and
- receiving, from the terminal, a failure message including a failure type based on a radio link failure (RLF) for the second base station,
- wherein the RLF for the second base station is detected by the terminal based on an expiration of a timer which starts upon detecting a predetermined number of consecutive out-of-syncs for a primary secondary cell (pSCell) of the second base station.
A terminal in a wireless communication system supporting dual connectivity of a first base station and a second base station, the terminal comprising:
- a transceiver;
- and
- a controller configured to:
- receive, from the first base station, a configuration message for adding the second base station;
- identify expiration of a timer which starts upon detecting a predetermined number of consecutive out-of-syncs for a primary secondary cell (pSCell) of the second base station,
- detect a radio link failure (RLF) for the second base station based on the expiration of the timer, and
- transmit, to the first base station, a failure message including a failure type based on detecting the RLF for the second base station.
A first base station in a wireless communication system supporting a dual connectivity of the first base station and a second base station, the first base station comprising:
- a transceiver;
- and
- a controller configured to:
- transmit, to a terminal, a configuration message for adding the second base station, and
- receive, from the terminal, a failure message including a failure type based on a radio link failure (RLF) for the second base station,
- wherein the RLF for the second base station is detected by the terminal based on an expiration of a timer which starts upon detecting a predetermined number of consecutive out-of-syncs for a primary secondary cell (pSCell) of the second base station.
Dependencies are inferred from the claim text.