Abstract:
A method for controlling uplink IP packet filtering in a mobile terminal in a 3GPP Evolved Packet System (EPS) is provided, including an information receiving operation of receiving IP address information allocated to user equipment, and filtering information required for delivering an uplink IP packet received from the user equipment; and a filtering operation for determining which packet data network and a bearer the IP packet is delivered to, based on the IP address information and the filtering information. In a 3GPP evolved packet system supporting a default bearer function, a packet data network to which an uplink IP packet is delivered and a bearer identifier can be efficiently determined when the user equipment simultaneously accesses one or more packet data networks and is allocated several IP addresses, resulting in effective uplink packet filtering.
Abstract:
이기종 액세스 시스템에서의 핸드오버 제어 장치는, 다수의 액세스 시스템 중 제1 액세스 시스템에서 제2 액세스 시스템으로 단말의 핸드오버를 결정한 경우, 상기 제2 액세스 시스템의 핸드오버 정책에 기초하여 상기 제1 액세스 시스템에서 상기 단말이 제공받은 적어도 하나의 서비스의 핸드오버 가능성을 검사하고, 핸드오버가 가능한 서비스에 각각 적용할 정책 규칙을 결정한다. 그리고 나서, 상기 단말로 상기 핸드오버를 승인하고, 상기 제2 액세스 시스템으로 핸드오버가 가능한 서비스에 각각 적용할 정책 규칙을 전달한다. 이기종, 액세스 시스템, 3GPP, 핸드오버, 정책 규칙, 자원
Abstract:
A multi-mode communication system and a method thereof are provided to minimize power consumption generated according as a multi-mode terminal accesses a multi wireless access apparatus by installing a multi-mode controller for managing the multi-mode and by collectively managing various activation states in accordance with access modes of the multi-mode terminal. A multi-mode communication system comprises a multi-mode terminal(100), wireless access systems(210,220,230), MCEs(Mobile Control Entity, 310,320,330), and a multi mode controller(400). The multi-mode terminal(100) performs the first, second and third communication according to three different communication protocols, and changes communication modes according to a paging request from the mobile controller(400). The wireless access systems(210,220,230) are controlled by the connected MCEs(310,320,330), respectively, have specific communication frequencies, and perform wireless communication with the multi-mode terminal(100) according to a communication mode selection of the multi-mode terminal(100). The MCEs(310,320,330), connected with the wireless access systems(210,220,230), manage mobility, user authentication, and access control of the connected multi-mode terminal(100). The multi-mode controller(400), connected to the MCEs(310,320,330), receives state information of the multi-mode terminal(100) from the MCEs(310,320,330), generates a paging message according to a broadcasting message or a paging request from other network and a paging request from the MCEs(310,320,330), and transmits the paging message to the multi-mode terminal(100) on the basis of a table in which state information of the multi-mode terminal is stored.
Abstract:
PURPOSE: A method for recognizing a data transmission request of a terminal/base station RRC(Radio Resource Control) using a network transmission unit is provided to effectively use a radio resource by using a message mutual transmission between a terminal/base station RLC(Radio Link Control) or PDCP and RRC which can recognize a data transmission request to an uplink or a downlink. CONSTITUTION: In order for a terminal/base station RRC(110) to be transited from a standby state irrecognizable a data transmission request to an active state recognizable the data transmission request, a PDCP standby state set-up message to set the terminal/base station PCDP(120) to a state of recognizing a data transmission request from a down and up link, to the terminal/base station PDCP(Packet Data Convergence Protocol)(120). Upon receiving the PDCP standby state set-up message, the terminal/base station PDCP(120) is turned to a standby state, and transmits a PDCP standby set-up completion message to the terminal/base station RRC(110). The PDCP(120) remains in the standby state, and when it receives a data transmission request from an uplink or donwlink, the PDCP(120) transmits a PDCP transmission request recognition message to the terminal/base station RRC(110). Accordingly, the terminal/base station RRC(110) can recognize the data transmission request from the uplink or downlink. Thereafter, upon receiving the PDCP transmission request recognition message, the terminal/base station RRC(110) is transmitted from the state in which it can not recognize the data transmission request to an active state in which it can recognize the data transmission request, and transmits a PDCP re-starting set-up message to the PDCP(120) to re-start the PDCP(120) which is in the standby state.
Abstract:
PURPOSE: A method for a hard handoff to a synchronous CDMA system from an asynchronous CDMA system is provided to execute a handoff at an appointed time after receiving all necessary information to set up a traffic channel with a synchronous CDMA(second generation IS95) base station in the state that the connection with an asynchronous CDMA(third generation 3GPP DS) base station has not released. CONSTITUTION: Based on a received signal strength indicator and base station discriminating information reported from a mobile terminal, a third generation 3GPP DS base station judges that a handoff to a second generation IS95 base station is required. If the 3rd generation 3GPP DA base station informs a mobile switching center that the handoff to the 2nd generation IS95 base station is required(Handoff Required), the mobile switching center sends a handoff request message to inform the 2nd generation IS95 base station that the handoff is required(Handoff Request). The 2nd generation IS95 base station transfers information, necessary for the mobile terminal to execute the hard handoff to the 2nd generation IS95 base station, to the generation 3GPP DA base station(Handoff Request ACK, Handoff Command). The generation 3GPP DA base station transfers information delivered from the 2nd generation IS95 base station to the mobile terminal through a preset signaling channel(Inter-System Handoff Command). If the mobile station receives the inter-system handoff command message normally and informs the 3rd generation 3GPP DA base station of the fact(L2:Data Ack), the 3rd generation 3GPP DA base station sends a handoff execution message to the mobile switching center(Handoff Commenced).