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 method for communicating by a user equipment with a macro cell base station and a small cell base station in a communication system is provided. The method comprises applying a first base station security key to a first communication link with the macro cell base station; generating a second base station security key to be used for a second communication link with the small cell base station based on the first base station security key; applying the second base station security key to the second communication link with the small cell base station; and communicating through at least one of the first communication link and the second communication link.
Abstract:
A method for connectionless messaging, a machine-readable storage medium, and a communication terminal are provided. A method for connectionless messaging between a first communication terminal and a second communication terminal includes: discovering a second communication terminal located in proximity to the first communication terminal; receiving first user input data; generating a message including the first user input data; and transmitting the generated message to the second communication terminal without a connection between the first communication terminal and the second communication terminal.
Abstract:
A method and an apparatus for controlling uplink power in a wireless communication system are provided. The method for controlling uplink power of a User Equipment (UE) forming a transmission link with a plurality of BSs (BSs), a power headroom report trigger event by at least one of the plurality of BSs is detected. Power headroom information of the UE is reported to at least one of the plurality of BSs.
Abstract:
A method and an apparatus for controlling a waiting time related to determination of a radio link failure in a wireless communication system are provided. The method includes receiving a message from a network, if a first timer for determination of the radio link failure is running and the message includes timer information related to the waiting time, starting a second timer related to the waiting time based on the timer information, and if the second timer expires before expiration of the first timer, determining a channel situation of a serving cell as a situation of the radio link failure.
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 method for communicating by a user equipment with a macro cell base station and a small cell base station in a communication system is provided. The method comprises applying a first base station security key to a first communication link with the macro cell base station; generating a second base station security key to be used for a second communication link with the small cell base station based on the first base station security key; applying the second base station security key to the second communication link with the small cell base station; and communicating through at least one of the first communication link and the second communication link.
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 method of setting a handover parameter includes receiving, from a serving evolved NodeB (eNB), cell type information indicating eNB types of the serving eNB and eNBs adjacent to the serving eNB, and mobility information of the UE, detecting types of the serving eNB and a target eNB based on the cell type information, and setting a Time-To-Trigger (TTT) applied, the mobility information of the UE, and a received signal strength for the serving eNB.
Abstract:
A method and an apparatus for controlling a waiting time related to determination of a radio link failure in a wireless communication system are provided. The method includes receiving a message from a network, if a first timer for determination of the radio link failure is running and the message includes timer information related to the waiting time, starting a second timer related to the waiting time based on the timer information, and if the second timer expires before expiration of the first timer, determining a channel situation of a serving cell as a situation of the radio link failure.
Abstract:
An apparatus and a method for transmitting and receiving a signal based on a mobility coverage class are provided. The method includes the operations of receiving, from a base station, information for estimating mobility and information for determining whether to return to a first mode, determining whether the terminal has mobility based on the information for estimating mobility, entering a second mode in which a predetermined coverage class is switched to the mobility coverage class when it is determined that the terminal has mobility, transmitting, to the base station, a second mode indicator indicating entry into the second mode, selecting one of coverage classes of the base station as the mobility coverage class, and transmitting and receiving a signal using a resource allocated to the selected mobility coverage class.
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). An apparatus of a Base Station (BS) in a wireless communication system is provided. The apparatus includes a wireless communication unit that is configured to receive an interference signal which cannot be controlled during a first period, and all interference signals during a second period with respect to a plurality of channels and a controller configured to determine a size of an interference signal which can be controlled, using a difference between a measurement of all the interference signals during the second period and a measurement of the interference signal which cannot be controlled, and select one of the plurality of channels according to the determined size of the interference signal which can be controlled.
Abstract:
A method and an apparatus for controlling uplink power in a wireless communication system are provided. The method for controlling uplink power of a User Equipment (UE) forming a transmission link with a plurality of BSs (BSs), a power headroom report trigger event by at least one of the plurality of BSs is detected. Power headroom information of the UE is reported to at least one of the plurality of BSs.