Electronics and Telecommunications Research Institute

Dae Sub Oh

Do-Seob Ahn

Ho Jin Lee

Hee Wook Kim

Sooyoung Kim

Bon Jun Ku

Chang Hee Joo

Ji Hyeon Yun

Tae Gun An

Hae Sung Jo

Satya Chan

A frequency resource allocation apparatus comprising a processor is configured to select resources for transmitting a signal to a user based on a learning model, allocate the selected resources to the user, transmit the signal to the user using the selected resources, receive information about whether the transmission of the signal is successful or not from the user via a feedback channel after a delayed time, and update an internal parameter of the learning model with respect to the resources used for transmitting the signal.

Apparatus and method for frequency allocation using reinforced learning for low earth orbit satellite network

An operation method in a communication system may comprise: obtaining information on a per-beam required traffic amount; determining whether the per-beam required traffic amount can be serviced while satisfying a first condition according to a first model generated through pre-training in a first machine learning structure; in response to determining that the per-beam required traffic amount can be serviced while satisfying the first condition, calculating per-beam bandwidth allocation information based on the per-beam required traffic amount; calculating per-beam power allocation information based on the per-beam bandwidth allocation information; identifying whether an SNR condition included in the first condition is satisfied based on the per-beam power allocation information; and in response to identifying that the SNR condition is satisfied, outputting the per-beam bandwidth allocation information and the per-beam power allocation information.

Method and apparatus for resource allocation in wireless communication system

An interference effect mitigating method may be a method of mitigating interference effects of a mobile earth station to a terrestrial radio station. The interference effect mitigating method may include collecting position information including a position, of a communication device of a first wireless communication network, which changes over time, determining an antenna discrimination angle based on the collected position information, and determining a transmission power and a transmission scheme of the communication device of the first wireless communication network based on the determined antenna discrimination angle, to mitigate interference effects of the communication device of the first wireless communication network to a communication device of a second wireless communication network.

Method and apparatus for mitigating interference effects using antenna discrimination angle

In a system where satellite communication using multi-beams is performed for each group including a plurality of beams, a required data transmission rate of each beam is detected for each group, more traffic resources are allocated to a beam having a higher required data transmission rate than other beams based on the detection result, and data traffic transmitted to each beam in the group is adaptively controlled.

Method and apparatus for allocating traffic resources in multi-beam satellite communication system

Provided are a non geostationary satellite orbit (NGSO) communication apparatus that extends an operation time using an ancillary territory component (ATC) and reduces a number of satellites, and an ATC and an operating method thereof. The NGSO communication apparatus extends an operation time using an ATC and reduces a number of satellites from a first ATC that communicates with a mobile earth station (MES), and a second ATC that communicates with the first ATC to relay data between the MES and the satellite when the first ATC is unable to communication with the satellite revolving along an orbit.

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Daejeon, South Korea

Dae Sub Oh