Method for reporting a radio link problem and a device therefor
First Claim
1. A method for a user equipment (UE) operating in a wireless communication system comprising a master base station (BS) and a secondary BS, the method comprising:
- receiving, from the master BS, configuration information regarding a plurality of cells associated with the secondary BS, wherein the plurality of cells include a first cell supporting contention-based random access and at least one second cell;
configuring the plurality of cells based on the received configuration information;
detecting a radio link problem on at least one of the plurality of cells;
checking whether the radio link problem occurs on the first cell or on the at least one second cell; and
reporting the radio link problem to the master BS only if the radio link problem occurs on the first cell.
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Abstract
The present invention relates to a wireless communication system. More specifically, the present invention relates to a method and a device for reporting an radio link problem in the wireless communication system, the method comprising: receiving an indicator indicating which cell is a first cell of the second BS from either the first BS or the second BS; detecting a radio link problem on a cell belonging to the second BS; and reporting the radio link problem of the second BS to the first BS if the cell, on which the radio link problem is detected, is indicated as the first cell by the indicator.
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Citations
18 Claims
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1. A method for a user equipment (UE) operating in a wireless communication system comprising a master base station (BS) and a secondary BS, the method comprising:
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receiving, from the master BS, configuration information regarding a plurality of cells associated with the secondary BS, wherein the plurality of cells include a first cell supporting contention-based random access and at least one second cell; configuring the plurality of cells based on the received configuration information; detecting a radio link problem on at least one of the plurality of cells; checking whether the radio link problem occurs on the first cell or on the at least one second cell; and reporting the radio link problem to the master BS only if the radio link problem occurs on the first cell. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A user equipment (UE) operating in a wireless communication system comprising a master base station (BS) and a secondary BS, the UE comprising:
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an RF (radio frequency) module; and a processor configured to control the RF module, wherein the processor is configured to receive, from the master BS, configuration information regarding a plurality of cells associated with the secondary BS, wherein the plurality of cells include a first cell supporting contention-based random access and at least one second cell, to configure the plurality of cells based on the received configuration information, to detect a radio link problem on at least one of the plurality of cells, to check whether the radio link problem occurs on the first cell or on the at least one second cell, and to report the radio link problem to the master BS only if the radio link problem occurs on the first cell. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18)
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Specification