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). The present disclosure is to provide a multicast service in a wireless communication system and comprises the steps of: receiving a multicast group participation message transmitted from a terminal via a communication session from a terminal to a first network entity; generating a multicast tunnel generation request message on the basis of the multicast group participation message, and transmitting the same to the first network entity; and generating a multicast service request message on the basis of the multicast group participation message, and transmitting the same to a second network entity. The present research is research that has been conducted with the support of the “Cross-Departmental Giga KOREA Project” funded by the government (the Ministry of Science and ICT) in 2017 (No.

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). The present disclosure is to provide a multicast service in a wireless communication system and comprises the steps of: receiving a multicast group participation message transmitted from a terminal via a communication session from a terminal to a first network entity; generating a multicast tunnel generation request message on the basis of the multicast group participation message, and transmitting the same to the first network entity; and generating a multicast service request message on the basis of the multicast group participation message, and transmitting the same to a second network entity. The present research is research that has been conducted with the support of the “Cross-Departmental Giga KOREA Project” funded by the government (the Ministry of Science and ICT) in 2017 (No.

Abstract: The present disclosure relates to a network information analysis in a wireless communication system, and an analysis method comprises the steps of: receiving information on channel quality measured by a terminal; and outputting information on whether a carrier aggregation (CA) coverage mismatch occurs at a location where the channel quality has been measured, which is determined on the basis of the information on the channel quality. Further, the present disclosure comprises other embodiments as well as the above-descried embodiment.

Abstract: The present disclosure relates to a network information analysis in a wireless communication system, and an analysis method comprises the steps of: receiving information on channel quality measured by a terminal; and outputting information on whether a carrier aggregation (CA) coverage mismatch occurs at a location where the channel quality has been measured, which is determined on the basis of the information on the channel quality. Further, the present disclosure comprises other embodiments as well as the above-descried embodiment.

Abstract: Upon generation of a high-priority call, a mobile station selects a predetermined Random Access (RA) code indicating generation of a high-priority call, generates a preamble using the selected RA code, and transmits the preamble to a base station.

Abstract: A method and system for providing a phone directory service to a user terminal in a mobile communication network are provided. The method includes displaying, when a search keyword for the phone directory service is input by a user, a business list including businesses corresponding to the search keyword on a screen of the user terminal, connecting a call connection with a business selected by the user among the businesses displayed on the screen, displaying at least one product image provided by the selected business on the screen during the call connection, displaying, if a desired product is selected by the user, order details for the selected product during the call connection, processing payment of the selected product during the call connection, and displaying details for the payment on the screen.

Abstract: An apparatus and method for operating a centralized Base Station (BS) in a mobile communication system are provided. An operation method of a remote radio unit in a separate type BS of a mobile communication system includes receiving channel state information transmitted by a terminal and transmitting the channel state information to a digital unit, performing scheduling using the channel state information, deciding data to be transmitted based on its own scheduling result and a scheduling result received from the digital unit, and providing the data to be transmitted to a modulator/demodulator (modem).

Abstract: A method and system for providing a phone directory service to a user terminal in a mobile communication network are provided. The method includes displaying, when a search keyword for the phone directory service is input by a user, a business list including businesses corresponding to the search keyword on a screen of the user terminal, connecting a call connection with a business selected by the user among the businesses displayed on the screen, displaying at least one product image provided by the selected business on the screen during the call connection, displaying, if a desired product is selected by the user, order details for the selected product during the call connection, processing payment of the selected product during the call connection, and displaying details for the payment on the screen.

Abstract: A communication system and a method for transmitting or receiving packets are provided. The method includes transmitting the packet from a transmitting Radio Link Control (RLC) entity to a receiving node via a transmitting Medium Access Control (MAC) entity, transmitting an Hybrid Automatic ReQuest (HARQ) failure signal from the transmitting MAC entity to the transmitting RLC entity if the transmitting MAC entity receives a HARQ Negative ACKnowledgment (NACK) signal from the receiving node, and re-transmitting the packet from the transmitting RLC entity to the receiving node via the transmitting MAC entity if the transmitting RLC entity receives the HARQ failure signal.

Abstract: A method and system for providing a phone directory service to a user terminal in a mobile communication network are provided. The method includes receiving a search request including a search keyword for the phone directory service and a subscriber identifier for the user terminal from the user terminal, acquiring subscriber information of a subscriber possessing the user terminal from the mobile communication network in which the user terminal is registered using the subscriber identifier, acquiring a business list of businesses corresponding to the search keyword from a business DataBase (DB) for managing businesses which have subscribed to the phone directory service, arranging the business list based on a communication pattern of a group of similar subscribers which have been determined to have subscriber information similar to that of the subscriber possessing the user terminal according to a predetermined criteria, and providing the arranged business list to the user terminal.

Abstract: An apparatus and a method for allowing a femto base station to efficiently perform beaconing in a wireless communication system are provided. The method includes obtaining a System Information Block (SIB) message of a neighbor macro base station transmitted to a terminal by the neighbor macro base station. Information of the femto base station is added to the obtained SIB message of the macro base station and the SIB message is updated. The updated SIB message is transmitted to the terminal.

Abstract: An apparatus and method for transmitting and receiving Machine to Machine (M2M) data between a Base Station (BS) and a terminal in a wireless communication system are provided. The terminal receives a downlink Media Access Control (MAC) packet from a Base Station (BS), and obtains the M2M data by interpreting MAC layer control information included in the downlink MAC packet.

Abstract: An apparatus and method for operating a centralized Base Station (BS) in a mobile communication system are provided. An operation method of a remote radio unit in a separate type BS of a mobile communication system includes receiving channel state information transmitted by a terminal and transmitting the channel state information to a digital unit, performing scheduling using the channel state information, deciding data to be transmitted based on its own scheduling result and a scheduling result received from the digital unit, and providing the data to be transmitted to a modulator/demodulator (modem).

Abstract: A method for synchronizing location information between devices in a Machine to Machine (M2M) communication system includes, when receiving a location information synchronization request for a plurality of devices, determining whether location information of a corresponding device among the plurality of devices is present; when the location information of the corresponding device is not present, requesting location information to the corresponding device and receiving the location information of the corresponding device; and transmitting the received location information of the corresponding device to the other devices excluding the corresponding device among the plurality of devices.

Abstract: A method and system for providing a phone directory service to a user terminal in a mobile communication network are provided. The method includes receiving a search request including a search keyword for the phone directory service and a subscriber identifier for the user terminal from the user terminal, acquiring subscriber information of a subscriber possessing the user terminal from the mobile communication network in which the user terminal is registered using the subscriber identifier, acquiring a business list of businesses corresponding to the search keyword from a business DataBase (DB) for managing businesses which have subscribed to the phone directory service, arranging the business list based on a communication pattern of a group of similar subscribers which have been determined to have subscriber information similar to that of the subscriber possessing the user terminal according to a predetermined criteria, and providing the arranged business list to the user terminal.

Abstract: An apparatus and a method for operating a terminal in a broadband wireless communication system including a macrocell and a femtocell are provided. The method includes receiving femtocell information relating to a femtocell to which the terminal is registered, determining whether the terminal enters a region where the femtocell belongs, using the femtocell information, when entering the region where the femtocell belongs, transmitting a message to wake up the femtocell, and searching for the femtocell.

Abstract: An apparatus and a method for allowing a femto base station to efficiently perform beaconing in a wireless communication system are provided. The method includes obtaining a System Information Block (SIB) message of a neighbor macro base station transmitted to a terminal by the neighbor macro base station. Information of the femto base station is added to the obtained SIB message of the macro base station and the SIB message is updated. The updated SIB message is transmitted to the terminal.

Abstract: An apparatus and method for random access based on call priority in a mobile communication system are provided, in which upon generation of a high-priority call, a mobile station selects a predetermined Random Access (RA) code indicating generation of a high-priority call, generates a preamble using the selected RA code, and transmits the preamble to a base station.

Abstract: A communication system and a method for transmitting or receiving packets are provided. The method includes transmitting the packet from a transmitting Radio Link Control (RLC) entity to a receiving node via a transmitting Medium Access Control (MAC) entity, transmitting an Hybrid Automatic ReQuest (HARQ) failure signal from the transmitting MAC entity to the transmitting RLC entity if the transmitting MAC entity receives a HARQ Negative ACKnowledgment (NACK) signal from the receiving node, and re-transmitting the packet from the transmitting RLC entity to the receiving node via the transmitting MAC entity if the transmitting RLC entity receives the HARQ failure signal.