Method and apparatus for inter-RAT cell selection mechanism in NB-IOT
AssigneeLG Electronics Inc.
InventorsHyunjung Choe, Sunghoon Jung, Hongsuk Kim
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Abstract
A method and apparatus for inter-RAT cell selection mechanism in NB-IOT in a wireless communication system is provided. A wireless device receives a configuration related to periodic uplink transmission. A wireless device performs the periodic uplink transmission on a suitable cell. A wireless device selects other suitable cell, based on a periodicity of the periodic uplink transmission. A wireless device performs the periodic uplink transmission on the selected suitable cell.
Claims10
A method performed by a wireless device in a wireless communication system, the method comprising:
- receiving a configuration related to periodic uplink transmission;
- performing a cell selection procedure;
- camping on a NarrowBand Internet of Things (NB-IoT) cell based on the cell selection procedure;
- configuring a periodic search timer based on a periodicity of the periodic uplink transmission;
- performing the periodic uplink transmission on the NB-IoT cell;
- entering to an any cell selection state upon expiry of the periodic search timer;
- performing a cell reselection procedure, while in the any cell selection state;
- camping on another cell based on the cell reselection procedure;
- and
- continuing the periodic uplink transmission on the another cell,
- wherein (1) the periodic search timer has an interval time of N times of the periodic uplink transmission and (2) N is a natural number,
- wherein the periodic search timer starts a duration for prohibiting cell selection before one transmission of the periodic uplink transmission is performed.
A wireless device in a wireless communication system comprising:
- a transceiver;
- a memory;
- and
- at least one processor operatively coupled to the transceiver and the memory, and configured to:
- control the transceiver to receive a configuration related to periodic uplink transmission;
- perform a cell selection procedure;
- camp on a NarrowBand Internet of Things (NB-IoT) cell based on the cell selection procedure;
- configure a periodic search timer based on a periodicity of the periodic uplink transmission;
- control the transceiver to perform the periodic uplink transmission on the NB-IoT cell;
- enter to an any cell selection state upon expiry of the periodic search timer;
- perform a cell reselection procedure, while in the any cell selection state;
- camp on another cell based on the cell reselection procedure;
- and
- control the transceiver to continue the periodic uplink transmission on the another cell,
- wherein (1) the periodic search timer has an interval time of N times of the periodic uplink transmission and (2) N is a natural number,
- wherein the periodic search timer starts a duration for prohibiting cell selection before one transmission of the periodic uplink transmission is performed.
A non-transitory computer-readable medium having stored thereon a plurality of instructions, which, when executed by a processor of a wireless device, cause the wireless device to:
- receive a configuration related to periodic uplink transmission;
- perform a cell selection procedure;
- camp on a NarrowBand Internet of Things (NB-IoT) cell based on the cell selection procedure;
- configure a periodic search timer based on a periodicity of the periodic uplink transmission;
- perform the periodic uplink transmission on the NB-IoT cell;
- entering to an any cell selection state upon expiry of the periodic search timer;
- performing a cell reselection procedure, while in the any cell selection state;
- transmission;
- and
- camping on another cell based on the cell reselection procedure;
- and
- continuing the periodic uplink transmission on the another cell,
- wherein (1) the periodic search timer has an interval time of N times of the periodic uplink transmission and (2) N is a natural number,
- wherein the periodic search timer starts a duration for prohibiting cell selection before one transmission of the periodic uplink transmission is performed.
Dependencies are inferred from the claim text.