Method and apparatus for performing and reporting measurements by user equipment configured with multiple carriers in mobile communication systems
摘要
說(shuō)明書(shū)
When receiving the report control message from the UE 3601, the ENB 3603 is capable of detecting that a condition as to whether the UE supports LTE operations in unlicensed bands and an LTE duplex mode supported in unlicensed bands. In order to additionally configure (establish) an unlicensed band to the UE, the ENB 3601 is capable of transmitting, to the UE 3601 operating in a licensed band, a control message instructing the UE to measure the strength/quality of signals of the unlicensed band in operation 3621. This process is performed by the ENB 3603 to request the UE 3601 to measure an unlicensed band used by a cell (e.g., SCell 3607) currently under the control of the ENB 3603, to receive the strength/quality of signals for the cell from the UE 3601, and to determine whether the ENB 3603 adds the cell to the UE 3601.
The measurement instructing control message can be transmitted by using an RRCConnectionReconfiguration message of the RRC layer. The measurement instructing control message can include information regarding conditions for: a frequency to be measured; and a time that the measurement result of the frequency is reported. For example, the measurement instructing control message can include EARFCN specifying a radio frequency channel to be measured and further include information indicating an operation mode of a corresponding radio frequency channel if the radio frequency channel is an unlicensed band. That is, in the embodiment, it is assumed that EARFCN is not related to a particular operation mode. After receiving the EARFCN and the operation mode of a corresponding radio frequency channel, the UE detects a frequency band corresponding to the radio frequency channel from the EARFCN and an operation mode to be used for measurement.
