Abstract:
The present invention relates to an operating method of a mobile communications system operating multiple beams. A base station operating method includes: allocating a beam identifier for each of the multiple beams; transmitting the beam identifier corresponding to each of the multiple beams using each of the multiple beams; and notifying, by the terminal, the base station of the beam identifier of the selected beam. According to the operating method of the mobile communications system, a base station can rapidly detect which a terminal enters a specific beam area and rapidly process the movement of the terminal between beam areas with a minimum overhead without performing a complex procedure such as re-conducting a random access or a handover process even when the terminal moves between the beam areas.
Abstract:
A terminal continues to compare the signal intensity of a serving base station and the signal intensity of a target base station and execute the handover to the target base station at the optimal point of the handover instead of executing the handover right upon receiving a handover command from the serving base station. When the point of handover is determined, the terminal transmits a message notifying the execution of the handover to the serving base station, and then executes the handover to the target base station. [Reference numerals] (AA,CC) No; (BB,DD) Yes; (S10) Receive a handover command; (S20) Measure a signal intensity of a target base station; (S30) Determine a handover execution point based on the signal intensity; (S40) Handover execution point?; (S50) Transfer handover alarm messages to a serving base station; (S60) Reply a response message ?; (S70) Execute the handover
Abstract:
PURPOSE: A D2D(Device to Device) communication starting and terminating method and a device thereof are provided to offer a detailed procedure between the devices by activating and setting a D2D bearer according to an RRC(Radio Resource Control) connection reconfiguration message of a base station. CONSTITUTION: When a D2D link is able to be set, a first and a second device(110,120) transmit a D2D connection inspection response message to a base station(210). The first and the second device sets a D2D bearer based on an RRC connection reconfiguration request message of the base station and transmits the RRC connection reconfiguration response message to the base station. The first and the second device activate a D2D bearer based on a D2D bearer activation request message of the base station and transmit the D2D bearer response message to the base station. [Reference numerals] (110) First device; (120) Second device; (210) First base station; (AA,S311) Response to D2D connection inspection; (BB) Send a message of D2D communication availability; (S301) Determine the availability of D2D communication; (S303) Request to check the availability of D2D communication; (S305) Request D2D connection inspection; (S307) Check the availability of D2D link setting and check the intention for D2D communication; (S315) Request generation of a D2D bearer; (S317) Request D2D bearer configuration and session management; (S319) Request RRC connection reconfiguration; (S321) Set a D2D bearer; (S323,S325) Response to RRC connection reconfiguration
Abstract:
PURPOSE: A terminal including a protocol layer for D2D(Device to Device) communication, a base station, and a D2D bearer setting method using the same are provided to transmit and receive traffic between the D2D terminals by setting a direct bearer between the terminals. CONSTITUTION: A first terminal(100) includes a DBM(D2D Bearer Management) layer(170) managing and setting a bearer for a D2D communication service. The DMB is connected to a base station through a first interface. The first interface transmits the state information of the first terminal to the base station. The first interface receives a control signal for D2D resource assignment from the base station. The first terminal is connected to the second terminal through a second interface exchanging D2D bearer control information. [Reference numerals] (100) First terminal; (200) Second terminal; (300) Base station; (400) Mobile management device; (500) Gateway; (600) D2D server; (AA,CC) First interface; (BB) Second interface
Abstract:
본 발명은 서로 다른 종류의 무선 통신 망간 핸드 오버에 관한 것으로, 특히 무선 자원 정보를 이용한 이종 망간 핸드 오버 방법 및 이종 망간 핸드 오버 수행을 위한 무선 자원 관리 장치에 관한 것으로, 다수의 무선 통신망들 각각에 대한 무선 자원 정보를 동적으로 획득하는 단계; 상기 획득된 무선 자원 정보에 기초하여 상기 무선 통신망들 중 하나에 접속된 사용자 단말의 핸드 오버 수행 여부를 결정하는 단계; 및 상기 핸드 오버 수행 여부 결정 결과에 따라 상기 사용자 단말로, 상기 접속한 무선 통신망과 다른 무선 통신망으로의 핸드 오버 수행을 지시하는 단계;를 포함하는 것을 특징으로 하는 이종 망간 핸드 오버 방법에 의해 서로 다른 형태의 망간 다중 액세스 기술에 대해서 동적 무선 자원 정보에 의한 핸드 오버가 가능하도록 함으로써, 무선 통신망 간에 네트워크 자원의 적절한 로드 분배를 수행할 수 있다는 효과가 있다. 핸드오버, 무선 자원 관리, MRRM
Abstract:
PURPOSE: A service providing method and system using a relay node of a 3GPP LTE-advanced system are provided to activate the relay node through a base station by adding to an L3 protocol to the relay node. CONSTITUTION: L1 protocol and L2 protocol of a relay node(240) manages information transmission/reception between a base station(220) and a terminal(210) in a specific node. The L1 and L2 protocols relay the information transmission/reception between the base station and the terminal. An L3 protocol connects a control signal of a user transmitted from the terminal to the other server without using the base station.
Abstract:
PURPOSE: A handover server in multi-interface environment in multi-interface environment and a method thereof are provided to process handover by reflecting triggering information including static data and dynamic data. CONSTITUTION: A storage part(110) stores triggering information. The triggering information includes static data allocated by a mobile telecom system and dynamic information changed according to circumferences. When handover events occur, a hand over processor(120) process the handover by selecting one wireless connection system among a plurality of wireless access systems.
Abstract:
본 발명은, 복수개의 단일 시스템이 복합적으로 운영되는 통합 시스템에 대해, 시스템 내에 존재하는 사용자수에 기초하여, 멀티 유저 다이버시티 계수를 결정하는 단계와, 결정된 멀티 유저 다이버시티 계수를 이용하여, 비용함수를 결정하는 단계와, 결정된 비용함수에 기초하여 자원을 할당하는 단계를 포함하는 통합 시스템의 자원 할당 방법에 관한 것이다. 이에 의하여, 여러 개의 시스템이 복합적으로 운영되는 통합 시스템 내에서 각 시스템들과 사용자들 간의 상황과 요구 조건들을 최대한 반영하고 효율적인 자원관리가 가능해진다. 비용 함수, 통합 시스템, 멀티 유저 다이버 시티 계수, 표준 네트워크 상태 지수