Method for reporting a radio link problem and a device therefor
First Claim
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1. A method performed by a user equipment (UE) supporting dual connectivity in a wireless communication system, the method comprising:
- determining whether a first cell or at least one second cell has a radio link problem associated with a secondary base station (BS), wherein the secondary BS is associated with a plurality of serving cells comprising the first cell and the at least one second cell, and wherein the first cell supports a contention based random access; and
informing a master BS about the radio link problem based on a determination that the first cell has the radio link problem,wherein the UE includes two medium access control (MAC) entities;
a first MAC entity for the master BS and a second MAC entity for the secondary BS.
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Abstract
A method is provided for operating by a user equipment (UE) connected with a master base station (BS) and a secondary BS in a wireless communication system. The UE configures a first cell supporting a contention based random access and a second cell other than the first cell. The first cell and the second cell are associated with the secondary BS. The UE determines whether a radio link problem is occurred on the first cell or the second cell. The UE indicates the radio link problem to an upper layer only if the radio link problem occurs on the first cell.
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Citations
20 Claims
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1. A method performed by a user equipment (UE) supporting dual connectivity in a wireless communication system, the method comprising:
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determining whether a first cell or at least one second cell has a radio link problem associated with a secondary base station (BS), wherein the secondary BS is associated with a plurality of serving cells comprising the first cell and the at least one second cell, and wherein the first cell supports a contention based random access; and informing a master BS about the radio link problem based on a determination that the first cell has the radio link problem, wherein the UE includes two medium access control (MAC) entities;
a first MAC entity for the master BS and a second MAC entity for the secondary BS. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A user equipment (UE) configured to support dual connectivity in a wireless communication system, the UE comprising:
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a transceiver; and a processor configured to control the transceiver, wherein the processor is further configured to; determine whether a first cell or at least one second cell has a radio link problem associated with a secondary base station (BS), wherein the secondary BS is associated with a plurality of serving cells comprising the first cell and the at least one second cell, and wherein the first cell supports a contention based random access; and inform a master BS about the radio link problem based on a determination that the radio link problem has occurred on the first cell associated with the secondary BS, wherein the UE includes two medium access control (MAC) entities;
a first MAC entity for the master BS and a second MAC entity for the secondary BS. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification