Samsung Electronics Co., Ltd.

Lg Electronics Inc.

Shangrao Jinko Solar Technology Development Co., Ltd

Giwon Lee

Ilhyoung Jung

Kisu Kim

Moonyoung Jeong

Jaehyun Hwang

Kyuho Han

Joonseo Lee

Jinho Lee

Jinhyoung Kim

Hyunjoo Lee

Jeongbeom Nam

Hakyung Jung

Jongkyoung Hong

Sooyoung Jang

Jongdae Kim

Youngsung Kho

Sangkyu Baek

Jonghwan Kim

Jin Woo Park

Daehee Jang

Chiwoo Lim

Youngsung Yang

Kyoungsoo Lee

Juwan Kang

Jinah Kim

Manhyo Ha

Goohwan Shim

Kangeun Lee

Young-Sung Kho

Youngsuk Sun

Namkoo Kang

Junghwan Lim

Goo Hwan Shim

A tandem solar cell includes a perovskite solar cell including a perovskite absorption layer, a silicon solar cell placed under the perovskite solar cell, a junction layer placed between the perovskite solar cell and the silicon solar cell, an upper electrode placed on the perovskite solar cell, and a lower electrode placed under the silicon solar cell.

Tandem solar cell

The present disclosure relates to a pre-5th-Generation (5G) or 5G communication system to be provided for supporting higher data rates Beyond 4th-Generation (4G) communication system such as Long Term Evolution (LTE). The present disclosure is to provide a multicast service in a wireless communication system and comprises the steps of: receiving a multicast group participation message transmitted from a terminal via a communication session from a terminal to a first network entity; generating a multicast tunnel generation request message on the basis of the multicast group participation message, and transmitting the same to the first network entity; and generating a multicast service request message on the basis of the multicast group participation message, and transmitting the same to a second network entity. The present research is research that has been conducted with the support of the 'Cross-Departmental Giga KOREA Project' funded by the government (the Ministry of Science and ICT) in 2017 (No. GK17N0100, millimeter wave 5G mobile communication system development).

Method and apparatus for multicast in communication system

The present disclosure relates to a 5generation (5G) or pre-5G communication system for supporting a higher data transmission rate beyond a 4generation (4G) communication system such as long-term evolution (LTE). The present disclosure relates to beam management in a wireless communication system, and an operation method of a base station may comprise the steps of: transmitting first type reference signals; receiving feedback information on the first type reference signals; transmitting information on resources for second type reference signals, which are allocated on the basis of the feedback information, to at least one terminal; and transmitting the second type reference signals through the resources, wherein the second type reference signals are transmitted using fixed transmission beams by the base station. The present research has been conducted with the support of the 'cross-departmental giga KOREA project' of the government (the ministry of science and ICT) in 2017 (No. GK17N0100, Development for mmWave-based 5G mobile communication system).

Device and method for beam management in wireless communication system

Provided are a method and apparatus for managing a session in a wireless communication system. The method includes identifying a session management module with a failure from among a plurality of session management modules that each manage at least one session; determining a substitute module that replaces the session management module with the failure; obtaining, from a control plane entity, information about at least one session managed by the session management module with the failure; and controlling the substitute module to manage the at least one session, based on the obtained information about the at least one session.

Method, apparatus and system for managing session in wireless communication system

A method of a first terminal is provided. The method includes communicating with a first gateway by using a first internet protocol (IP) address allocated to the first terminal, according to a first IP session, in response to a distance between the first terminal and a second gateway being equal to or less than a predetermined threshold, establishing a second IP session with the second gateway while the first IP session is set in the first terminal, receiving, from a second terminal, a first IP session-release message about the first IP session via the second gateway by using a second IP address according to the second IP session, when data from the first terminal is received by the second terminal according to the first IP session, and in response to the first IP session-release message being received from the second gateway, releasing the first IP session with the first gateway.

Method and device for performing communication

The present disclosure relates to a communication method and system for converging a 5th-Generation (5G) communication system for supporting higher data rates beyond a 4th-Generation (4G) system with a technology for Internet of Things (IoT). The present disclosure may be applied to intelligent services based on the 5G communication technology and the IoT-related technology, such as smart home, smart building, smart city, smart car, connected car, health care, digital education, smart retail, security and safety services. A method of a proxy device in a communication system of the present disclosure includes identifying a packet loss rate on a wireless connection between a terminal and a server, determining whether the packet loss rate is greater than a predetermined threshold value, and proxying, if the packet loss rate is greater than the threshold value, the connection between the terminal and the server.

TCP proxy device-assisted communication method and apparatus in wireless communication

The present disclosure relates to a communication method and a system for converging a 5th-generation (5G) communication system for supporting higher data rates beyond a 4th-generation (4G) system with a technology for internet of things (IoT). The disclosure may be applied to intelligent services based on the 5G communication technology and the IoT-related technology, such as smart home, smart building, smart city, smart car, connected car, health care, digital education, smart retail, security and safety services. A method of a communication apparatus includes determining an acknowledgement (ACK) transmission frequency for each flow, based on a state of a transmission control protocol (TCP) transmitter, identifying whether uplink resources are insufficient, selecting a flow for adjustment of the ACK transmission frequency when the uplink resources are insufficient, and adjusting the ACK transmission frequency of the selected flow.

Method and apparatus for transmitting TCP ACK in communication system

A solar cell includes a substrate having a textured surface, the textured surface including a plurality of jagged portions; an emitter region forming a p-n junction with the substrate; a plurality of first electrodes connected to the emitter region; and a second electrode connected to the substrate, wherein each of the plurality of jagged portions has a diameter and a height that are equal to or less than 1 &#x3bc;m, and each of the plurality of first electrodes has a width of about 20 &#x3bc;m to about 80 &#x3bc;m.

Solar cell

A solar cell is discussed, which includes a tunneling layer on one surface of a semiconductor substrate; a first conductive type region on the tunneling layer; a second conductive type region on the tunneling layer; a first electrode and a second electrode, the first electrode connected to the first conductive type region and the second electrode connected to the second conductive type region. The tunneling layer includes a first portion and a second portion. The first portion is disposed to correspond to at least a part of the first and second conductive type regions and has a first thickness. At least a part of the second portion is disposed to correspond to a boundary portion between the first conductive type region and the second conductive type region. The second portion has a second thickness greater than the first thickness.

A method for manufacturing a solar cell includes forming a conductive type region on one surface of a semiconductor substrate, and forming an electrode on the conductive type region, wherein the forming of the electrode includes forming a metal layer on an entire area of the conductive type region, forming a printed electrode layer having a pattern on the electrode layer, and forming an electrode layer between the conductive type region and the printed electrode layer, wherein the forming of the electrode layer includes patterning the metal layer by using the printed electrode layer as a mask.

Solar cell and method for manufacturing the same

A solar cell is discussed. A solar cell includes a semiconductor substrate, a conductive type region on one surface of the semiconductor substrate, and an electrode connected to the conductive type region. The electrode includes an electrode layer on the conductive type region and a printed electrode layer on the electrode layer.

A solar cell module having an interconnector and a method of fabricating the same are disclosed. The solar cell module includes a plurality of solar cells and an interconnector including a first area electrically connected to one of two adjacent solar cells of the plurality of solar cells, a second area electrically connected to the other of the two adjacent solar cells, and a third area connecting the first area to the second area. At least one of the first area and the second area of the interconnector has at least one uneven surface, and the third area of the interconnector has a substantially planarized surface.

Growing community of inventors

Seoul, South Korea

Giwon Lee