| Patent application number | Description | Published |
|---|
| 20090080354 | Multimedia Broadcast Multicast Service Providing System and Method Thereof - The present invention relates to a multi-media broadcast and multicast service (MBMS) providing system and a method thereof. The MBMS providing system provides an MBMS to a terminal having an MBMS function. The MBMS providing system includes a service center and a radio access network. The service center provides MBMS data and metadata having service announcement information abut the MBMS to the terminal. The radio access network periodically transmits establishment information for receiving the metadata to the terminal, and provides the metadata and the MBMS data received from the service center to the terminal through nodes for transmitting data. The establishment information includes first establishment information having a service identifier and IP/UDP parameters for receiving the metadata, and second establishment information for establishing a radio channel. | 03-26-2009 |
| 20090279515 | Apparatus and a method for service continuity between umts network and wlan - The present invention relates to a method for guaranteeing service continuity between a 3GPP network and a non-3GPP network. According to the exemplary embodiment of the present invention, when a mobile station receiving a service from the 3GPP network moves to the non-3GPP network or it moves back to the 3GPP network from the non-3GPP network, an inter-working gateway inter-works with a SGSN or a GGSN through the 3GPP network to provide a seamless service to a mobile subscriber. | 11-12-2009 |
| 20090286527 | Apparatus and a method for service continuity between umts network and wlan network - Service continuity is provided between a 3GPP network and a non-3GPP network. When a mobile station having accepted service in the 3GPP network moves to the non-3GPP network or returns from the non-3GPP network to the 3GPP network, an interworking gateway is interworked with a GGSN through a universal tunnel using a packet data network, and accordingly a mobile subscriber may accept seamless service. | 11-19-2009 |
| 20100150082 | TERMINAL DEVICE OF CARRIER AGGREGATION BASED MOBILE COMMUNICATION SYSTEM AND BUFFER STATUS REPORTING METHOD THEREOF - Provided is a buffer status reporting method of a terminal device in a mobile communication system. The buffer status reporting method includes obtaining a radio resource allocation for a plurality of component carriers from a base station, configuring a plurality of medium access control-protocol data units (MAC-PDUs) including buffer status information corresponding to the plurality of component carriers, the plurality of MAC-PDUs including generated sequence numbers (SNs), and transmitting the plurality of MAC-PDUs to the base station through the plurality of component carriers. | 06-17-2010 |
| 20100309859 | SESSION CONTROL METHOD FOR USE IN RADIO COMMUNICATION SYSTEM - A session control method for use in a radio communication system is provided. In the session control method, a session management (SM) protocol message for the setting or the cancellation of a session is transmitted with the aid of a radio resource control (RRC) protocol message of a lower layer for the setting or the cancellation of a radio bearer. Therefore, it is possible to reduce the number of signalling messages to a radio interface and thus to minimize signalling delays. In addition, it is possible to realize a many-to-one correspondence between services and bearers and realize efficient packet services in an evolved radio communication system by separately defining service identifiers and bearer identifiers and selectively setting or cancelling a bearer according to the correspondence between services and bearers. | 12-09-2010 |
| 20110138033 | METHOD FOR PROCESSING EXCEPTIONAL CASE OF ESTABLISHING DEFAULT BEARER IN MOBILE COMMUNICATION SYSTEM AND DEVICE THEREFOR - There are provided a method for processing an exceptional case of establishing a default bearer and a device therefor in order to solve a problem in that a user equipment cannot actually receive an IP service by accessing a packet network while failing in establishing the default bearer in a mobile communication system. A method for processing an exceptional case of establishing a default bearer in a mobility management entity includes: receiving a network attachment request from a user equipment; transmitting a network attachment acceptance including an activation request of the default bearer to the user equipment in response to the network attachment request; and cancelling a network attachment procedure when a completion response to the activation request of the default bearer is not received from the user equipment within a predetermined time. | 06-09-2011 |
| 20110154146 | APPARATUS FOR PROCESSING RETRANSMISSION FAILURE IN RADIO LINK CONTROL (RLC) LAYER - Provided are a data transmission apparatus and a data reception apparatus when a retransmission of a data unit repeatedly fails in a Radio Link Control (RLC) layer. When a retransmission with respect to a particular data unit, for example, a Protocol Data Unit (PDU) continuously fails, each of a transmission entity and a reception entity may detect the retransmission failure and locally process a corresponding packet. Accordingly, the transmission entity and the reception entity may continuously transmit and receive data. | 06-23-2011 |
| 20120155404 | DATA TRANSMISSION METHOD FOR DETACHED MACHINE TYPE COMMUNICATION DEVICE AND MOBILE COMMUNICATION SYSTEM PROVIDING MACHINE TYPE COMMUNICATION SERVICE - Provided are a data transmission method for a detached machine type communication (MTC) device and a mobile communication system providing an MTC service. The method includes sensing an MTC device performing a detachment procedure from a network, when the MTC device being detached is sensed, storing, at a first gateway (GW), context information about the MTC device being detached from the network, storing, at the detached MTC device, context information that has been lastly allocated and used before the detachment, receiving, at the first GW, downlink data transmitted from an MTC server to the detached MTC device, and buffering the received data, transmitting a paging message to the detached MTC device, and performing, at the MTC device receiving the paging message, an attachment process to the network, and receiving the DL data buffered in the first GW. | 06-21-2012 |
| 20120155438 | METHOD OF REORDERING AND REASSEMBLING PACKET DATA IN RADIO LINK CONTROL LAYER - A method includes recognizing, by an RLC entity of a reception side, a transmission time interval (TTI) start time, initializing a count of the number of PDUs processed in a TTI, determining whether the reordering timer has expired, performing a procedure of reassembling RLC service data units (SDUs) and transmitting the reassembled RLC SDUs to an upper layer and updating the reordering timer when the reordering timer has expired, performing the procedure and updating the reordering timer when an RLC PDU received from a lower layer is an RLC PDU which should be received by retransmission of a transmission side before reordering timer expiration, and processing RLC SDUs received from the upper layer, wherein the procedure limits the number of RLC PDUs to be processed within a TTI using the count of the number of PDUs to be processed within the TTI. | 06-21-2012 |
| 20120163313 | CALL PROCESSING METHOD FOR USE IN MACHINE-TYPE COMMUNICATION TERMINAL - Disclosed is a call processing method for use in a machine-type communication terminal. The call processing method includes transmitting, by a terminal, a radio resource control (RRC) connection request message to a base station, receiving, by the terminal, an RRC connection setup message from the base station, receiving, by the terminal, an uplink (UL) resource allocation grant message from the base station in a state in which a service request message and a buffer status report message are not transmitted to the base station, and transmitting, by the terminal, a message for call processing corresponding to the UL resource allocation grant message. It is possible to rapidly and efficiently perform a call processing procedure and lengthen the life span of the terminal by reducing power consumption of the terminal that uses battery as an energy source. | 06-28-2012 |
