Abstract:
본 발명은 무선 통신 시스템에서 MBMS 서비스를 제공하기 위한 장치 및 방법에 관한 것이다. 본 발명의 일 실시 예에 따른 송신 장치는, 무선 통신 시스템에서 MBMS를 제공하기 위한 장치로, MBMS 서비스 데이터마다 각 MBMS 트래픽에 대응하는 헤더를 생성하고 이들을 논리적인 MBMS 트래픽 채널에 매핑하여 맥(MAC) 패킷을 생성하기 위한 MBMS 구성부와, 상기 MBMS 트래픽에 대한 제어 정보를 수신하여 헤더를 생성하고 이들을 이용하여 MAC 패킷을 생성하여 논리적인 MBMS 제어 채널(MCCH)에 매핑하기 위한 MCCH 구성부와, 상기 MTCH 및 MCCH의 전송 시점 및 우선순위를 결정하여 스케줄링하는 스케줄러와, 상기 MTCH와 MCCH 중 적어도 하나를 물리하향 공유 채널로 매핑하고, 상기 물리하향 공유 채널로 제공되는 트래픽의 제어 정보와 식별 정보를 물리하향 제어 채널로 제공하는 송신부를 포함한다. MBMS, RNTI, MTCH, MCCH, PDSCH, PDCCH
Abstract:
PURPOSE: A method for transmitting data for detached machine type communication(MTC) devices and a mobile communication system using the method are provided to improve the efficiency of a downlink data transmitting process with respect to the detached MTC devices. CONSTITUTION: When an MTC device(110) is detached from a network, the MTC device stores context information which is finally allocated and used before the MTC device is detached from the network. If the detached MTC device is detected, a first gateway(410) stores context information with respect to the detached MTC device. The first gateway receives and buffers downlink data from an MTC server(500) to the detached MTC device and triggers paging to the detached MTC device. The detached MTC device wakes up at a specific timing and confirms a paging message corresponding to the context information.
Abstract:
이동통신 시스템에서 사용자 장치가 디폴트 베어러 설정에 실패한 채 패킷망에 접속하여 실질적으로 IP 서비스를 제공받지 못하는 문제를 해결하기 위한 디폴트 베어러 설정의 예외 처리 방법 및 이를 위한 장치가 제공된다. 디폴트 베어러 설정의 예외 처리 방법은 이동성 관리 장치가 사용자 장치로부터 망 가입 요청을 수신하는 단계와, 상기 망 가입 요청에 대한 응답으로 디폴트 베어러의 활성화 요청을 포함하는 망 가입 승인을 전송하는 단계 및 미리 설정된 시간 내로 상기 디폴트 베어러의 활성화 요청에 대한 완료 응답이 상기 사용자 장치로부터 수신되지 않으면 망 가입 절차를 취소하는 단계를 포함한다. 3세대 이동통신, 디폴트 베어러, 타이머
Abstract:
A method of controlling an uplink IP packet filtering in a mobile terminal is provided to perform an uplink packet filtering efficiently by determining a packet data network and a bearer identifier efficiently. When IP address information allocated to a terminal and an IP packet received at the terminal are transmitted to an uplink, filtering information is received(S510). Based on the IP address information and the filtering information, a packet data network and a bearer that transmit the received IP packet in the terminal are determined(S520). As the session activation, the session inactivation and session modification procedure for a session control protocol of a terminal proceed, the filtering information is received from a network.
Abstract:
A method for controlling an MBMS(Multimedia Broadcast And Multicast Service) bearer in a mobile communication terminal is provided to divide the control process of activation or deactivation of an MBMS service by a user's request and the control process of MBMS bearer setting or releasing according to the notification of an MBMS service session start or end from a network separately, thereby effectively controlling the MBMS bearer for the MBMS service. A RRC(Radio Resource Control)(304) establishes an MBMS(Multimedia Broadcast And Multicast Service) bearer for an MBMS service when an MBMS service session start is notified from the outside(S318~S323). If the MBMS bearer is established, the RRC notifies a RABM(Radio Access Bearer Management)(302) of the MBMS service session start(S324). If the RABM transits from a session deactivation status to a session activation status, MBMS service data is transferred through the established MBMS bearer to the outside(S325).
Abstract:
A method for controlling transmission of a downlink packet in a mobile communication system is provided to meet the demands that 3GE(3rd-Generation Evolution) mobile communication system should establish a default bearer as well as signaling connection between a terminal and a network when paging is performed to the terminal. An access gateway receives a downlink packet to be transferred to a terminal(301), and checks over a state of the terminal(302). If the terminal is in an idle state, the access gateway performs a paging procedure with the terminal and establishes a default bearer among the terminal, a base station and the access gateway(303). If the terminal is in a connected state, the access gateway checks whether there is a downlink packet filter corresponding to the downlink packet(304). If there is no downlink packet filter, the access gateway transfers the downlink packet through the default bearer(305). If there is a downlink packet filter, the access gateway checks whether there is a dedicated bearer corresponding to the downlink packet filter(306). If there is no dedicated bearer, the access gateway establishes a corresponding dedicated bearer and transfers the downlink packet(307,308).
Abstract:
망 연동 시스템에서 서비스 품질을 협상하는 게이트웨이와 단말 장치가 개시된다. 먼저, 단말 장치는 무선랜 액세스 포인트와 서비스 품질을 협상하여 무선랜 액세스 베어러를 설정한다. 그리고, 단말 장치는 게이트웨이와 패킷을 교환하기 위한 서비스 품질을 무선랜 액세스 베어러를 통해 협상한다. 게이트웨이는 외부 베어러의 서비스 품질에 따라 서비스 품질을 수락하고, 이후 단말 장치와 게이트웨이는 I-WLAN 베어러를 설정한다. 다음으로, 단말 장치는 종단 장치와 패킷을 교환하기 위한 서비스 품질을 I-WLAN 베어러를 통해 게이트웨이와 협상한다. 게이트웨이는 외부 베어러의 가용 자원 및 I-WLAN 베어러의 가용 자원에 따라 서비스 품질을 수락하고, 이후 단말 장치와 게이트웨이는 IP 베어러를 설정한다. QoS, 3GPP, WLAN, WAG, PDG
Abstract:
An MBMS(Multimedia Broadcast Multicast Service) providing system and method are provided to solve a problem that information including a service identifier, a multicast IP address and UDP port information for an MBMS is transferred to a UE(User Equipment) through meta data, but a service identifier, a multicast IP address and UDP port information for an SA(Service Announcement) service cannot be transferred through the meta data because they should be previously provided to the UE before reception of the meta data. When a UE operates(S100), a UTRAN(Universal mobile telecommunications system Terrestrial Radio Access Network)(200) periodically broadcasts an RRC(Radio Resource Control) SIB(Service Information Block)(S102). The UTRAN(200) establishes an MTCH(Multicast Traffic Channel)(S104) and periodically transmits an RRC MBMS PTM(Point-To-Multicast) bearer information message to the UE(100) within a cell(S106). The terminal receives a request for activating an MBMS function from a user(S108), and when the MBMS function is activated, the UE(100) establishes an SA MTCH channel(S110). The terminal sets an MBMS IP bearer according to a multicast IP address and UDP port information for an SA received through an SIB message of a BCCH(Broadcast Control Channel)(S112) and starts a FLUTE receiving process(S114). When setting of the MBMS bearer is completed, the UE(100) receives meta data(S116,S118). The UE(100) decodes and stores the meta data(S120), and informs the user which service of the MBMS is being provided(S122). The UE(100) receives a request for selecting a service of the MBMS or releasing the selection(S124), and activates or deactivates the MBMS(S126).
Abstract:
A method for correlating QoS(Quality of Service) parameters in a 3GPP-WLAN(Wireless LAN) interworking system is provided to execute one-to-one mapping with respect to 3GPP QoS parameters and WLAN QoS parameters so that efficient QoS control can be made when a 3GPP terminal having a WLAN communication function accesses a packet-based service. IP network managers(201,205), respectively installed in a WLAN UE(User Equipment)(200) and a PDG(Packet Data Gateway)(204), allocate end-to-end IP addresses for end-to-end traffic transmission. A translation/mapping function(202) in the WLAN UE(200) maps data QoS information, generated in an application layer, to QoS information generated of a 3GPP-WLAN interworking system. A translation/mapping function(206) of the PDG(204) maps QoS information of an external network to QoS information of the 3GPP-WLAN interworking system. I-WLAN BS managers(203,207) respectively request QoS information from the translation/mapping functions(202,206) and QoS parameter information from the WLAN system. The I-WLAN BS managers(203,207) map traffic QoS information to QoS parameter information of the 3GPP-WLAN interworking system and manage the present communication resource states and the tunneling between the WLAN UE(200) and the PDG(204).