Yonsei University

Samsung Electronics Co., Ltd.

Lg Electronics Inc.

Jaiyong Lee

Mi-Sun Do

Jung Min So

Eunhyun Kwon

Sunggook Lim

Hyunsook Kim

Yongsuk Park

Jongho Bang

Yujeong Oh

Jonghun Kim

Seokhwan Kong

Disclosed in the present specification is a method by which network nodes calculate an optimum path for virtualized service functions (SFs). The method can comprise the steps of: generating a service function chain (SFC), in which SFs are put in order, on the basis of subscriber information-based user policy information, session policy information, and SF state information; searching for an optimum SF set on the basis of the SFC so as to calculate an optimum service function path (SFP); and updating the SFP when any one of the subscriber information-based user policy information, session policy information, and SF state information is changed.

Method by which network nodes calculate optimum path for virtualized service functions

A relay station, including a delay information storage unit to store remaining delay information generated in a path from a target relay node to a destination node; an order determination unit to determine an order of processing service packets with a plurality of quality of service (QoS) levels using the remaining delay information, the service packets being received from a neighbor node; and a processing unit to process the service packets in the determined order.

Relay station operated according to QOS level of service packet and method of operating relay station

A method for setting a path by a base station in a mobile communication system and a system thereof are provided. The base station measures quality of a link directly connected to the mobile terminal using the received signal, if a signal is directly received from a mobile terminal. If the signal is received via at least one relaying node, the base station calculates quality of an entire path determined taking quality of each link into account, depending on the signal received via the at least one relaying node. The base station compares the calculated quality of the entire path with the quality of the directly connected link, and determines an optimal path according to the comparison result. The base station sends a relaying request message to a relaying node corresponding to the optimal path. Upon receipt of a relaying response message from the relaying node, the base station configures new broadcast information and broadcasts the newly configured broadcast information.

Relaying method of a mobile communication system and system thereof

Relay station operated according to QoS level of service packet and method of operating relay station

A method and system for relaying data in a mobile communication system are provided, in which a Relay Station (RS) configures a routing table using Link Quality Information (LQI) exchanged among Relay Stations (RSs) in a cell, determines a relay path referring to the routing table, measures the quality of a signal received from an Mobile Station (MS), determines whether to relay data received from the MS by comparing the measured signal quality with at least one of information regarding a data rate of the MS and a reference threshold, transmits a relay request message to a Base Station (BS), if the RS determines to relay the data received from the MS, updates the relay path, upon receipt of a relay response message accepting the relay request and broadcasting information from the BS, and relays the data received from the MS to the BS in the updated relay path.

Method and system for relaying data in a mobile communication system

Growing community of inventors

Seoul, South Korea

Jaiyong Lee