Abstract: Disclosed is a method for pairing terminals using a dummy terminal, the method including selecting at least one terminal from several, pairing a channel being used by the at least one terminal with data of a dummy terminal, receiving a measurement report message from the at least one terminal, adjusting power of the at least one terminal based upon the measurement report message, and pairing the at least one terminal with another terminal so as to use a channel being used by the at least one terminal together with the another terminal if the at least one terminal is suitable for pairing.

Abstract: The present invention provides a method for receiving information on a network configuration. The present invention is to allow a terminal to acquire accurate information on a neighbor cell. Furthermore, the present invention is to remove duplicated information from the information message on a neighbor cell, for instance, Neighboring Cell Information, thereby allowing an effective configuration thereof and preventing from using network resources wastefully.

Abstract: The present invention relates to cinchona-based bifunctional organocatalysts and methods for preparing chiral hemiesters using the same. More specifically, the present invention relates to methods for preparing chiral hemiesters from prochiral or meso cyclic acid anhydrides via desymmetrization, using bifunctional cinchona alkaloid catalysts comprising sulfonamide functional groups.

Abstract: A method and an apparatus of performing a cell reselection procedure in a wireless communication system are provided. The method includes starting a first reselection timer if a signal property value of a first neighbor cell with a higher priority than a serving cell is increased to above a threshold, starting a first delay timer if a second reselection timer that is a reselection timer of a second neighbor cell with a higher priority than the first neighbor cell is running at the expiry of the first reselection timer, reselecting the second neighbor cell as a suitable cell if the second reselection timer expires before the expiry of the first delay timer, and reselecting the first neighbor cell as the suitable cell if the first delay timer expires before the expiry of the second reselection timer.

Abstract: A method and apparatus for an enhanced general packet radio service (EGPRS) system is provided. A plurality of temporary block flows (TBFs) are established or reconfigured. If fast ACK/NACK reporting (FANR) activation for one TBF is inconsistent with FANR activation for another TBF, the allocated TBFs are aborted.

Abstract: A method and apparatus for detailed accounting of packet data are disclosed. According to one embodiment of the present invention, on receiving a duplicated HTTP request from a packet duplication apparatus, a billing apparatus extracts an access address to generate a first hash value. Then, on receiving a converted HTTP response from the packet duplication apparatus, the billing apparatus extracts a second hash value from the duplicated HTTP response to compare with the first hash value. If the first hash value and the second hash value are the same, the billing apparatus sets the HTTP REQUEST and the converted HTTP response as a transaction to generate billing data. Thus, the billing apparatus can generate accurate billing data.

Abstract: A method and apparatus for detailed accounting of packet data are disclosed. According to one embodiment of the present invention, on receiving a duplicated HTTP request from a packet duplication apparatus, a billing apparatus extracts an access address to generate a first hash value. Then, on receiving a converted HTTP response from the packet duplication apparatus, the billing apparatus extracts a second hash value from the duplicated HTTP response to compare with the first hash value. If the first hash value and the second hash value are the same, the billing apparatus sets the HTTP REQUEST and the converted HTTP response as a transaction to generate billing data. Thus, the billing apparatus can generate accurate billing data.

Abstract: Inventive embodiments relate to a method and an apparatus for tunneling service of an explicit multicast in a mobile IP network to forward multicast packets to plural mobile nodes with effect. When the apparatus providing the tunneling service for an explicit multicast in a mobile IP network receives a multicast packet from a correspondent node with a network, it extracts mobile nodes existing in a path for tunneling from among the plurality of mobile nodes. Also, after it creates an explicit multicast tunnel header having a destination address as a Co-Located Care-of Address (CL COA) of the mobile nodes existing in the path for tunneling, it tunnels a multicast packet that was encapsulated using the explicit multicast tunnel header to the mobile nodes.

Abstract: The present invention relates to method and apparatus for receivability test and reachability test of explicit multicast packet. In one embodiment, the xcast receivability test comprises i) at a sender end, sending a receivability probe packet to a receiver end, ii) at the receiver end, receiving the receivability probe packet, iii) generating an ICMP error message-Destination Unreachable, iv) sending the ICMP error message-Destination Unreachable to sender end, v) at the sender end, receiving the ICMP error message-Destination Unreachable and vi) analyzing the ICMP error message-Destination Unreachable.

Abstract: The present invention relates to a system and apparatus for tunneling service of explicit multicast, to efficiently transmit an explicit multicast of a packet to plural destinations. A tunnel ingress node is receives an explicit multicast packet from a sender terminal, which the explicit multicast packet has to be transmitted to plural addressee terminals. And, after the tunnel ingress node recognizes tunnel egress nodes using plural addresses terminal's address in the explicit multicast packet, it creates a tunnel header comprising transmission destinations based on the list of the recognized tunnel egress nodes. And then, the tunnel ingress node creates a tunnel packet encapsulated with the explicit multicast packet and the tunnel header, transmits the tunnel packet to the tunnel egress nodes. The tunnel egress nodes extract the tunnel header from the tunnel packet, and transmit the explicit multicasting packet to plural addressee terminals using the destination address of the tunnel header.

Abstract: The present invention relates to a method and an apparatus for explicit multicast service in Ethernet for executing an explicit multicast service designed for point-to-point link in Ethernet effectively. According to the present invention, there is provided a method and an apparatus for providing explicit multicast service by a router connected to the Ethernet and apparatus thereof. The method and the apparatus perform as follows: receives the explicit multicast data packet to be transmitted to the Ethernet, detects a path of the explicit multicast data packet by use of the explicit multicast data packet, determines a next node on the path of the explicit multicast data packet, sets an Ethernet address of the next node as an Ethernet address of destination of the explicit multicast data packet, and transmits the explicit multicast data packet to the next node.

Abstract: The present invention relates to method and apparatus for receivability test and reachability test of explicit multicast packet. In one embodiment, the xcast receivability test comprises i) at a sender end, sending a receivability probe packet to a receiver end, ii) at the receiver end, receiving the receivability probe packet, iii) generating an ICMP error message-Destination Unreachable, iv) sending the ICMP error message-Destination Unreachable to sender end, v) at the sender end, receiving the ICMP error message-Destination Unreachable and vi) analyzing the ICMP error message-Destination Unreachable.

Abstract: A method and apparatus for detailed accounting of packet data are disclosed. According to one embodiment of the present invention, on receiving a duplicated HTTP request from a packet duplication apparatus, a billing apparatus extracts an access address to generate a first hash value. Then, on receiving a converted HTTP response from the packet duplication apparatus, the billing apparatus extracts a second hash value from the duplicated HTTP response to compare with the first hash value. If the first hash value and the second hash value are the same, the billing apparatus sets the HTTP REQUEST and the converted HTTP response as a transaction to generate billing data. Thus, the billing apparatus can generate accurate billing data.

Abstract: There is provided a method of supporting small group multicast in mobile IP in which an implicit multicast packet received by a home agent is shifted to an explicit multicast packet including the IP address of a mobile node registered as a multicast receiving party to be transmitted to a care-of address, explicit multicast routing is performed based on the current care-of address of the mobile node described in the explicit multicast packet in case where the home agent receives this explicit multicast packet, and the mobile node uses the IP address of the home agent as the originating party's address when it sends the explicit multicast packet via a multicast router of a visited network.

Abstract: Inventive embodiments relate to a method and an apparatus for tunneling service of an explicit multicast in a mobile IP network to forward multicast packets to plural mobile nodes with effect. When the apparatus providing the tunneling service for an explicit multicast in a mobile IP network receives a multicast packet from a correspondent node with a network, it extracts mobile nodes existing in a path for tunneling from among the plurality of mobile nodes. Also, after it creates an explicit multicast tunnel header having a destination address as a Co-Located Care-of Address (CL COA) of the mobile nodes existing in the path for tunneling, it tunnels a multicast packet that was encapsulated using the explicit multicast tunnel header to the mobile nodes.

Abstract: The present invention relates to a system and apparatus for tunneling service of explicit multicast, to efficiently transmit an explicit multicast of a packet to plural destinations. A tunnel ingress node is receives an explicit multicast packet from a sender terminal, which the explicit multicast packet has to be transmitted to plural addressee terminals. And, after the tunnel ingress node recognizes tunnel egress nodes using plural addresses terminal's address in the explicit multicast packet, it creates a tunnel header comprising transmission destinations based on the list of the recognized tunnel egress nodes. And then, the tunnel ingress node creates a tunnel packet encapsulated with the explicit multicast packet and the tunnel header, transmits the tunnel packet to the tunnel egress nodes. The tunnel egress nodes extract the tunnel header from the tunnel packet, and transmit the explicit multicasting packet to plural addressee terminals using the destination address of the tunnel header.

Abstract: The present invention relates to a method and an apparatus for explicit multicast service in Ethernet for executing an explicit multicast service designed for point-to-point link in Ethernet effectively. According to the present invention, there is provided a method and an apparatus for providing explicit multicast service by a router connected to the Ethernet and apparatus thereof. The method and the apparatus perform as follows: receives the explicit multicast data packet to be transmitted to the Ethernet, detects a path of the explicit multicast data packet by use of the explicit multicast data packet, determines a next node on the path of the explicit multicast data packet, sets an Ethernet address of the next node as an Ethernet address of destination of the explicit multicast data packet, and transmits the explicit multicast data packet to the next node.

Abstract: There is provided a method of supporting small group multicast in mobile IP in which an implicit multicast packet received by a home agent is shifted to an explicit multicast packet including the IP address of a mobile node registered as a multicast receiving party to be transmitted to a care-of address, explicit multicast routing is performed based on the current care-of address of the mobile node described in the explicit multicast packet in case where the home agent receives this explicit multicast packet, and the mobile node uses the IP address of the home agent as the originating party's address when it sends the explicit multicast packet via a multicast router of a visited network.