Method and apparatus for transmitting and receiving data using plurality of carriers in mobile communication system
First Claim
1. A communication method of a user equipment (UE) in a dual connectivity (DC)-based mobile communication system in which a master cell group (MCG) and at least one secondary cell group (SCG) are configured, the method comprising:
- receiving measurement gap configuration information relating to a measurement gap used to periodically measure at least one serving cell;
determining a first sub-frame included in the measurement gap using a system frame number (SFN) of the MCG and the received measurement gap configuration information; and
performing a measurement on the at least one serving cell during at least one measurement gap sub-frame determined based on the determined first sub-frame,wherein the measurement gap starts at an ending point of a sub-frame that ends last among sub-frames that occur immediately before a measurement gap sub-frame of serving cells belonging to the MCG.
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Abstract
The present disclosure relates to a pre-5th-Generation (5G) or 5G communication system to be provided for supporting higher data rates Beyond 4th-Generation (4G) communication system such as Long Term Evolution (LTE). A communication method of a User Equipment (UE) in a Dual Connectivity (DC)-based mobile communication system in which a Master Cell Group (MCG) and at least one Secondary Cell Group (SCG) are configured is provided. The method includes receiving measurement gap configuration information relating to a measurement gap used to periodically measure at least one serving cell, determining a first sub-frame included in the measurement gap using a System Frame Number (SFN) of the MCG and the received measurement gap configuration information, and performing a measurement on the at least one serving cell during at least one measurement gap sub-frame determined based on the determined first sub-frame.
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Citations
20 Claims
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1. A communication method of a user equipment (UE) in a dual connectivity (DC)-based mobile communication system in which a master cell group (MCG) and at least one secondary cell group (SCG) are configured, the method comprising:
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receiving measurement gap configuration information relating to a measurement gap used to periodically measure at least one serving cell; determining a first sub-frame included in the measurement gap using a system frame number (SFN) of the MCG and the received measurement gap configuration information; and performing a measurement on the at least one serving cell during at least one measurement gap sub-frame determined based on the determined first sub-frame, wherein the measurement gap starts at an ending point of a sub-frame that ends last among sub-frames that occur immediately before a measurement gap sub-frame of serving cells belonging to the MCG. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A user equipment (UE) in a dual connectivity (DC)-based mobile communication system in which a master cell group (MCG) and at least one secondary cell group (SCG) are configured, the UE comprising:
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a transceiver for transmitting and receiving data to and from at least one serving cell; and a controller for analyzing measurement gap configuration information used in periodic measurement on the at least one serving cell, determining a first sub-frame included in a measurement gap, which is used to periodically measure the at least one serving cell, using a system frame number (SFN) of the MCG and the measurement gap configuration information, and controlling measurement on the at least one serving cell to be performed during at least one measurement gap sub-frame determined based on the determined first sub-frame, wherein the measurement gap starts at an ending point of a sub-frame that ends last among su frames that occur immediately before a measurement gap sub-frame of serving cells belonging to the MCG. - View Dependent Claims (8, 9, 10, 11)
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12. A communication method of an eNB in a dual connectivity (DC)-based mobile communication system in which a master cell group (MCG) and at least one secondary cell group (SCG) are configured, the method comprising:
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determining a measurement gap used for periodic measurement of a user equipment (UE) on at least one serving cell; transmitting measurement gap configuration information used to determine a first sub-frame included in the measurement gap to the UE, the first sub-frame is determined based on a system frame number (SFN) of the MCG and the measurement gap configuration information; and one of transmitting and receiving data to and from the UE, wherein data transmission and reception to and from the UE is not performed during the measurement gap, and wherein the measurement gap starts at an ending point of a sub-frame that ends last among sub-frames that occur immediately before a measurement gap sub-frame of serving cells belonging to the MCG. - View Dependent Claims (13, 14, 15, 16)
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17. An eNB in a dual connectivity (DC)-based mobile communication system in which a master cell group (MCG) and at least one secondary cell group (SCG) are configured, the eNB comprising:
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a transceiver for transmitting and receiving data to and from a user equipment (UE); and a controller for analyzing a measurement gap used for periodic measurement of the UE on at least one serving cell and measurement gap configuration information used to determine a first sub-frame included in the measurement gap to be transmitted to the UE, wherein the first sub-frame is determined based on a system frame number (SFN) of the MCG and the measurement gap configuration information, wherein data transmission and reception to and from the UE is not performed during the measurement gap, wherein, hybrid automatic repeat request (HARQ) feedback, channel-quality indicator (CQI), channel state information (CSI), and sounding reference signal (SRS) are not transmitted in sub-frames included in the measurement gap, and wherein the measurement gap starts at an ending point of a sub-frame that ends last among sub-frames that occur immediately before a measurement gap sub-frame of serving cells belonging to the MCG. - View Dependent Claims (18, 19, 20)
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Specification