METHOD AND APPARATUS FOR INITIAL ACCESS IN WIRELESS COMMUNICATION SYSTEM
First Claim
1. An apparatus of performing an initial access by a terminal in wireless communication system, the apparatus comprising;
- a controller configured to transmit capability indication information indicating whether the terminal supports a dual connectivity mode and a high frequency capability to a primary cell of a master eNodeB, receive measurement configuration information including a frequency, synchronization signal configuration information and measurement gap configuration information from the master eNodeB, determine a cell of a secondary eNodeB based on the synchronization signal configuration information, transmit a measurement report message including a cell identifier for the determined cell of the secondary eNodeB and a beam index corresponding to highest signal strength via the master eNodeB, receive information related to a secondary cell group (SCG) configuration from the secondary eNodeB, and perform the initial access based on the information related to the SCG.
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Abstract
The present disclosure relates to a pre-5th-Generation (5G) or 5G communication system for supporting higher data rates Beyond 4th-Generation (4G) communication system such as Long Term Evolution (LTE). Next generation of wireless cellular operation is expected to be deployed in higher frequency above 6 GHz (eg. 10 GHz˜100 GHz, also called mmWave and/or cmWave) due to availability of large amount of spectrum bandwidths. The physical layer of wireless cellular system in both DL and UL operating in mmWave/cmWave would be based on new air-interface different from that of LTE-A air-interface because the radio characteristics is different for mmWave/cmWave bands. The initial deployment of mmWave/cmWave system is expected to operate as non-standalone system to provide additional radio resources to the UE which would be connected to the LTE-A cell for coverage purpose. The present disclosure covers initial access aspects of a UE on such future wireless system.
210 Citations
22 Claims
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1. An apparatus of performing an initial access by a terminal in wireless communication system, the apparatus comprising;
a controller configured to transmit capability indication information indicating whether the terminal supports a dual connectivity mode and a high frequency capability to a primary cell of a master eNodeB, receive measurement configuration information including a frequency, synchronization signal configuration information and measurement gap configuration information from the master eNodeB, determine a cell of a secondary eNodeB based on the synchronization signal configuration information, transmit a measurement report message including a cell identifier for the determined cell of the secondary eNodeB and a beam index corresponding to highest signal strength via the master eNodeB, receive information related to a secondary cell group (SCG) configuration from the secondary eNodeB, and perform the initial access based on the information related to the SCG. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. (canceled)
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11. An apparatus of performing an initial access on a cell of a secondary eNodeB in wireless communication system, the apparatus comprising;
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a controller configured to receive capability indication information indicating whether a terminal supports a dual connectivity mode and a high frequency capability from the terminal, transmit measurement configuration information including a frequency, synchronization signal configuration information and a measurement gap configuration to the terminal, receive measurement report message related to a cell of the secondary eNodeB if the cell of the secondary eNodeB is determined based on the synchronization signal configuration information, wherein the measurement report message includes a cell identifier and a beam index corresponding to highest signal strength, and wherein the secondary eNodeB transmits information related to a secondary cell group (SCG) configuration to the terminal via a master eNodeB to enable the terminal to perform the initial access on the cell based on the information related to the SCG. - View Dependent Claims (12, 13)
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14. (canceled)
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15. A method of performing an initial access by a terminal in wireless communication system, the method comprising;
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transmitting capability indication information indicating whether the terminal supports a dual connectivity mode and a high frequency capability to a primary cell of a master eNodeB; receiving measurement configuration information including a frequency, synchronization signal configuration information and measurement gap configuration information from the master eNodeB; determining a cell of a secondary eNodeB based on the synchronization signal configuration information; transmitting a measurement report message including a cell identifier for the determined cell of the secondary eNodeB and a beam index corresponding to highest signal strength via the master eNodeB; and receiving information related to a secondary cell group (SCG) configuration from the secondary eNodeB, and perform the initial access based on the information related to the SCG. - View Dependent Claims (16, 17, 18)
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19. A method of performing an initial access on a cell of a secondary eNodeB in wireless communication system, the method comprising;
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receiving capability indication information indicating whether a terminal supports a dual connectivity mode and a high frequency capability from the terminal; transmitting measurement configuration information including a frequency, synchronization signal configuration information and a measurement gap configuration to the terminal; and receiving measurement report message related to a cell of the secondary eNodeB if the cell of the secondary eNodeB is determined based on the synchronization signal configuration information, wherein the secondary eNodeB transmits information related to a secondary cell group (SCG) configuration to the terminal via a master eNodeB to enable the terminal to perform the initial access on the cell based on the information related to the SCG. - View Dependent Claims (20, 21, 22)
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Specification