Samsung Electronics Co., Ltd.

Korea Advanced Institute of Science and Technology

Samsung Sds Co., Ltd.

Ajou University Industry-academic Cooperation Foundation

Chan-Ho Min

Jong-Hyung Kwun

Young-Hyun Jeon

Yung-Soo Kim

Dong-wook Kim

Kyeong-In Jeong

Jung-Soo Jung

Chae-Gwon Lim

Tak-Ki Yu

Hyun-Jeong Kang

Yeong-Moon Son

Myeon-Kyun Cho

Jung-Hoon Cheon

Dong-Ho Cho

Ok-Seon Lee

Ho-Won Lee

Sik Choi

Ju-Mi Lee

Woong-Sup Lee

Se-Young Yun

Hun-Joo Lee

Chul-Kee Hong

Joon-Young Cho

Ju-Ho Lee

Jae-Hyun Kim

Jung-Je Son

Soeng-hun Kim

Soeng-Hun Kim

Sang-Boh Yun

Geun-Hwi Lim

Won-Il Roh

Chae Gwon Lim

Dong-Wook Kim

Jung Soo Jung

Ju-Yeop Kim

Hyu-Dae Kim

Hyun-Soo Yoon

Hyun-Jin Lee

Han-Jin Lee

Jung-hoon Cheon

Sin-Hun Kang

Seung-Woo Jeon

Sawhney Mrinalini

Rak-Kyeong Seong

A method of path routing in a multilayered structure including layers and one or more links formed between adjacent layers includes identifying path connection elements included in each layer of a multilayered structure with layers that can have at least one links between adjacent layers, generating, for each layer of the multilayered structure, an embedded frame including the path connection elements identified in each layer of the multilayered structure, generating a topological frame including an outer boundary enclosing one or more punctures formed by the links among the plurality of path connection elements included in the embedded frame and one or more local path points arranged on a boundary of each of the one or more punctures, and generating a circular frame including a single circular closed curve by merging the boundary of each of the one or more punctures and the outer boundary of the topological frame.

Method of circular frame generation for path routing in multilayer structure, and computing device

An apparatus and method for providing handover support information in a mobile communication system are provided. A method for an Base Station (BS) to provide information necessary for measurement report trigger performance to a Mobile Station (MS) after the MS determines neighboring BSs in a mobile communication system includes, in a case where the MS is an active mode MS, providing a Time To Trigger (TTT) independently by a specific neighboring BS to the active mode MS and, in a case where the MS is an idle mode MS, providing a reselection time period (Treselection) independently by the specific neighboring BS to the idle mode MS.

Apparatus and method for providing handover support information in mobile communication system

An apparatus and method in a heterogeneous wireless communication system reconnect a Mobile Station (MS) to a previously connected cell upon occurrence of a Radio Link Failure (RLF) in a current cell when a portion of a coverage of the second cell is included in a coverage of the first cell. A Mobile Station (MS) stores system information of a first Base Station (BS) of a first cell when performing handover from the first cell to a second cell. When changed system information of the first BS is received from a second BS of the second cell, the MS updates the stored system information using the changed system information. When detecting that a connection with the second cell is lost prior to a handover from the second cell, the MS performs reconnection to the first BS using the stored system information.

Apparatus and method for supporting mobility in a heterogeneous wireless communication system

An apparatus and method of operating a compact base station for supporting coverage area expansion of a compact cell in a heterogeneous network system are provided. The method includes determining whether an overload takes place in a coverage area where a compact base station and a plurality of terminals communicate using a first Frequency Assignment (FA) in a compact cell, determining whether resources are redistributable using a second FA in a coverage area expanded according to coverage area expansion of the compact cell, and when the resources are redistributable using the second FA in the coverage area expanded according to the coverage area expansion of the compact cell, changing the FA of at least one of the plurality of terminals communicating with the compact base station using the first FA in the compact cell, from the first FA to the second FA.

Apparatus and method for supporting coverage expansion of compact cell in heterogeneous network system

A system and method for providing an emergency service in a communication system is provided. A method for providing an emergency service by an idle mode Mobile Station (MS) in a communication system includes receiving, from a Base Station (BS), a broadcast message including information on a time duration in which an emergency service message will be transmitted after waking up at a start timing point of a paging listening interval, transitioning into an idle state when a start timing point of the time duration in which the emergency service message will be transmitted is later than a timing point at which the paging listening interval is terminated, and waking up at the start timing point of the time duration in which the emergency service message will be transmitted after transitioning into the idle state.

System and method for providing an emergency service in a communication system

Group handover method and apparatus in a broadband wireless communication system which supports a mobile relay station are provided. A method of a serving base station for group handover of the mobile relay station includes when receiving a measurement report message from a relay station, determining whether the relay station is a mobile relay station of a simple type which forwards a signal; collecting handover related information of the mobile relay station and mobile terminals belonging to the mobile relay station, from pre-stored information; requesting handover of the mobile relay station and the mobile terminals by transmitting the collected handover related information to a target base station; and receiving a message indicating whether the handover of the mobile relay station and the mobile terminals is approved, from the target base station.

Group handover method and apparatus in broadband wireless communication system that supports mobile relay station

Disclosed is a method and system for transmitting and receiving data in a communication system. The system includes a base station, and a relay station connecting the base station with at least one mobile station. The base station transmits data for a plurality of mobile stations to the relay station, and transmits the data to at least one mobile station belonging to the base station from among the plurality of mobile stations. The relay station receives the data from the base station, and transmits the data to at least one mobile station belonging to the relay station from among the plurality of mobile stations in the same interval as an interval where the base station transmits the data to the mobile station.

Method and system for transmitting/receiving data in communication system

A multi-hop relay wireless communication system is provided. A base station (BS) includes a communication unit for receiving information on a received signal level and information on an interference node from mobile stations (MSs), and a scheduler for classifying a type of each MS by using the received signal level information and the interference node information and for performing differentiated scheduling according to the MS type.

Apparatus and method for scheduling in a multi-hop relay wireless communication system

An apparatus and a method for handover in a broadband wireless communication system supporting a Mobile Relay Station (MRS) are provided. The method includes transmitting a Connection ID (CID) of Mobile Stations (MSs), the CIDs pre-allocated by a target BS, to the MSs; sending a resource allocation message comprising uplink resource allocation information for bandwidth request of the MSs, to the MSs; receiving a bandwidth request message which comprises security authentication information of each MS, from the MSs using an uplink resource allocated through the uplink resource allocation information; and aggregating bandwidth request messages of the MSs and sending a ranging request message comprising the security authentication information and bandwidth request information of the MSs to the target BS. Thus, the handover delay time, which is inevitable for the bandwidth request in the conventional connection set-up procedure, can be reduced, and the handover with the reliability guaranteed can be achieved by allowing the security related processing in the network re-entry procedure.

Apparatus and method for handover in broadband wireless communication system for supporting mobile relay station

A method and an apparatus ensure efficient handover in a wireless communication system even when a User Equipment (UE) moves at a high speed. A serving eNB receives interference power information of an uplink (UL) signal and interference increase/decrease information of the UL signal from at least one adjacent eNB. an adjacent eNB, for which the received interference power information indicates that interference power of the UL signal is equal to or greater than a threshold value, is selected as a target eNB for a User Equipment (UE) among the at least one adjacent eNB. Whether handover of the UE is delayed is determined based on the interference increase/decrease information received from the target eNB. And if the handover of the UE is delayed, a handover parameter is transmitted to the UE to perform handover to the target eNB.

Method and apparatus for handover in wireless communication system

A method and apparatus for supporting an idle mode of a Mobile Station (MS) in a superframe-based wireless communication system are provided. In a method for operating an MS to support an idle mode in a superframe-based wireless communication system, a paging listening interval is determined based on a Broadcast CHannel (BCH) information Transmit (TX) interval. BCH information including paging information is received during the paging listening interval. The inclusion/non-inclusion of a paging advertisement (MOB_PAG-ADV) message is detected based on the BCH information.

Method and apparatus for supporting idle mode of mobile station in wireless communication system

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Seoul, South Korea

Chan-Ho Min