Method and apparatus for performing and reporting measurements by user equipment configured with multiple carriers in mobile communication systems
摘要
說明書
UE is capable of establishing an RRC connection in an LTE serving cell of a licensed band in operation 3103. After that, the UE is capable of determining whether it receives, from the ENB, a control message enquiring an unlicensed band capability report in operation 3105. When the UE has received, from the ENB, a control message enquiring an unlicensed band capability report in operation 3105, it is capable of reporting, to the ENB, a condition as to whether it supports an unlicensed band LTE operation and an unlicensed band LTE duplex mode (TDD or FDD) in operation 3107. For example, the capability report enquiring control message can include a UECapabilityEnquiry message of the RRC layer. The report message can include a UECapabilityInformation message of the RRC layer.
The UE is capable of receiving, from the ENB, a control message instructing the UE to measure an unlicensed band according to the capability supported by the UE in operation 3109. The measurement instructing control message can be transmitted by using an RRCConnectionReconfiguration message. When receiving the measurement instructing control message, the UE transmits the reception acknowledgement to the ENB and performs unlicensed band measurement according to the control message in operation 3111. After that, the UE is capable of determining whether the measurement result satisfies a condition according to the information set in the measurement instruction control message in 3113. When the measurement result satisfies a condition according to the information set in the measurement instruction control message in operation 3113, the UE is capable of reporting the measurement result to the ENB via the licensed band serving cell in operation 3115.
