Abstract: According to one or more embodiments of the present invention, a frame processing method of a distributed antenna system may include confirming whether a quality of service (QoS) tag exists in header information of a received frame; performing frame scheduling of the frame based on the QoS tag; and dropping or transmitting the frame according to a transmission priority according to a result of the frame scheduling.

Abstract: Disclosed is a distributed antenna system (DAS). The DAS includes a DAS controller, which is an OpenFlow controller, and one or more DAS units in order to dynamically control a traffic transmission policy of the DAS units using an OpenFlow protocol, wherein the DAS controller generates and changes a traffic transmission policy by reflecting a traffic transmission policy change request by operator manipulation or a software-defined network supporting application and a need for changing of the traffic transmission policy according to a status of the DAS unit and a status of a port, and the DAS unit transmits received traffic to a destination according to the policy.

Abstract: A TSN-based distributed antenna system including a headend unit, one or more TSN switches, and one or more remote units and a fronthaul transport network constituted by the headend unit, the TSN switch, and the remote unit is provided. The packet-based fronthaul network constituted by the headend unit, the TSN switch, and the remote unit transmits traffic in a time-deterministic manner while minimizing packet loss through Ethernet to which TSN standards are applied.

Abstract: Disclosed is a distributed antenna system (DAS). The DAS includes a DAS controller, which is an OpenFlow controller, and one or more DAS units in order to dynamically control a traffic transmission policy of the DAS units using an OpenFlow protocol, wherein the DAS controller generates and changes a traffic transmission policy by reflecting a traffic transmission policy change request by operator manipulation or a software-defined network supporting application and a need for changing of the traffic transmission policy according to a status of the DAS unit and a status of a port, and the DAS unit transmits received traffic to a destination according to the policy.

Abstract: According to one or more embodiments of the present invention, a frame processing method of a distributed antenna system may include confirming whether a quality of service (QoS) tag exists in header information of a received frame; performing frame scheduling of the frame based on the QoS tag; and dropping or transmitting the frame according to a transmission priority according to a result of the frame scheduling.

Abstract: An auto white balance method is disclosed. The auto white balance method includes receiving image data to divide the image data into a plurality of partition cells, calculating an estimation value of a skin tone included in the image data, and selecting outliers for detection of a white point of the image data, based on at least some of the plurality of partition cells and the estimation value.

Abstract: A TSN-based distributed antenna system including a headend unit, one or more TSN switches, and one or more remote units and a fronthaul transport network constituted by the headend unit, the TSN switch, and the remote unit is provided. The packet-based fronthaul network constituted by the headend unit, the TSN switch, and the remote unit transmits traffic in a time-deterministic manner while minimizing packet loss through Ethernet to which TSN standards are applied.

Abstract: An auto white balance method is disclosed. The auto white balance method includes receiving image data to divide the image data into a plurality of partition cells, calculating an estimation value of a skin tone included in the image data, and selecting outliers for detection of a white point of the image data, based on at least some of the plurality of partition cells and the estimation value.

Abstract: According to an aspect of the present disclosure, a method of processing a data stream in a node unit included in a distributed antenna system includes: receiving frame layout information; changing a frame layout of a predetermined transmission frame based on the received frame layout information; and framing a plurality of data streams based on the changed frame layout.

Abstract: A TSN-based distributed antenna system including a headend unit, one or more TSN switches, and one or more remote units and a fronthaul transport network constituted by the headend unit, the TSN switch, and the remote unit is provided. The packet-based fronthaul network constituted by the headend unit, the TSN switch, and the remote unit transmits traffic in a time-deterministic manner while minimizing packet loss through Ethernet to which TSN standards are applied.

Abstract: There is provided a method of processing uplink Ethernet packets of an aggregation node included in a distributed antenna system, the method includes: receiving a plurality of uplink Ethernet packets; summing the plurality of received uplink Ethernet packets; and transmitting the summed uplink Ethernet packets in an uplink direction.

Abstract: Disclosed is a distributed antenna system (DAS). The DAS includes a DAS controller, which is an OpenFlow controller, and one or more DAS units in order to dynamically control a traffic transmission policy of the DAS units using an OpenFlow protocol, wherein the DAS controller generates and changes a traffic transmission policy by reflecting a traffic transmission policy change request by operator manipulation or a software-defined network supporting application and a need for changing of the traffic transmission policy according to a status of the DAS unit and a status of a port, and the DAS unit transmits received traffic to a destination according to the policy.

Abstract: An auto white balance method is disclosed. The auto white balance method includes receiving image data to divide the image data into a plurality of partition cells, calculating an estimation value of a skin tone included in the image data, and selecting outliers for detection of a white point of the image data, based on at least some of the plurality of partition cells and the estimation value.

Abstract: According to one or more embodiments of the present invention, a frame processing method of a distributed antenna system may include confirming whether a quality of service (QoS) tag exists in header information of a received frame; performing frame scheduling of the frame based on the QoS tag; and dropping or transmitting the frame according to a transmission priority according to a result of the frame scheduling.

Abstract: Provided is a bidirectional service flow management method in a wideband wireless connection communication system, and more particularly, a method of performing a bidirectional flow establishment. The method of providing a flow service in an IEEE 802.16/WiBro includes: generating a revised dynamic service addition (DSA) related message in which an area for designating bidirectional flow management information is allocated from a standard DSA related message; and performing a bidirectional flow initialization process between a subscriber station (SS) and a base station (BS) via single control message negotiation based on the revised DSA related message.

Abstract: Provided is a resource management method in a communication system, and more particularly, a resource management method based on priority in a wireless communication system. The resource management method in a wireless management network includes: setting a priority factor value with regard to a link flow for which link establishment is requested; and if a capacity required by the flow for which link establishment is requested exceeds a remaining capacity of a base station, increasing the remaining capacity of the base station by sequentially reducing a minimum reserved rate (MRR) value of flows that receive a service at a lower priority than the flow for which link establishment is requested to a maximum sustained rate (MSR) value, until the remaining capacity required by the flow for which link establishment is requested is generated.

Abstract: Provided is a traffic class of an IEEE 802.16/WiBro system. The unsolicited grant service (UGS) scheduling method with regard to a subscriber station (SS) and a base station (BS) that are disposed in a network wherein an IEEE 802.16/WiBro system is realized, the method includes: when the SS requires 1 through M (where M is a positive integer) UGS flows, and the BS serves 1 through N (where N is a positive integer) frames, the BS storing grant periods and guaranteed sizes that are granted to the M UGS flows in each N frame; and the BS comparing service capacity of a frame and a sum of guaranteed sizes of each flow belonging to the N frames, and determining if an overload occurs.

Abstract: Disclosed is a system for providing handover of a mobile node in a wireless network supporting Mobile IP (Internet Protocol). The mobile node sends, when handover is needed, a request for neighbor access router information to a first access router currently communicating with the mobile node, and selects, if the neighbor access router information is received, a second access router serving as a target access router using the received neighbor access router information. The first access router exchanges access router information with a neighbor access router, provides neighbor access router information to the mobile node upon receiving the neighbor access router information request from the mobile node, and redirects data to be delivered to the mobile node to the second access router to which the mobile node will be handed over. The second access router forwards data to be delivered to the mobile node, received from the first access router, to the corresponding mobile node.

Abstract: Provided is a real-time polling service (rtPS) class of an IEEE 802.16/WiBro system. An rtPS scheduling method of the IEEE 802.16/WiBro system includes subscriber station (SS) located in a network where the IEEE 802.16/WiBro system is realized inserting a timestamp indicating time information when uplink data is transmitted from an application layer of the SS into the uplink data; and after the SS receives polling from a base station (BS), comparing the timestamp inserted into the uplink data and a current time, and, if a difference between the timestamp and the current time is greater than a predetermined period of time, firstly dropping the uplink data.

Abstract: Provided is a bidirectional service flow management method in a wideband wireless connection communication system, and more particularly, a method of performing a bidirectional flow establishment. The method of providing a flow service in an IEEE 802.16/WiBro includes: generating a revised dynamic service addition (DSA) related message in which an area for designating bidirectional flow management information is allocated from a standard DSA related message; and performing a bidirectional flow initialization process between a subscriber station (SS) and a base station (BS) via single control message negotiation based on the revised DSA related message.