公开(公告)号：US20150223187A1

公开(公告)日：2015-08-06

申请号：US14540194

申请日：2014-11-13

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE ,  AJOU UNIVERSITY INDUSTRY-ACADEMIC COOPERATION FOUNDATION

Inventor： Kyung Yul CHEON ,  Chang Joo KIM ,  Young Bae KO ,  Jae Beom KIM

IPC: H04W64/00 ,  H04W48/16 ,  H04W24/08

CPC classification number: H04W16/14 ,  H04W24/10

Abstract: The present invention provides a method and system for performing distributed channel sensing in which channel information is collected by performing channel sensing according to a channel sensing priority which is determined according to a relative position of a cell to which a wireless connection device belongs from among a plurality of cells which logically partition the zone of the wireless network, and thus the overhead of the channel sensing which is generated in a cognitive wireless multi-hop network environment is reduced, and the transmission failure which occurs when the wireless connection device detects frequencies is reduced.

Abstract translation: 本发明提供了一种用于执行分布式信道感测的方法和系统，其中通过根据根据无线连接设备所属的小区的相对位置确定的信道感知优先级来执行信道感测来收集信道信息。 在认知无线多跳网络环境中逻辑地划分无线网络的区域的多个小区，并且由此产生的信道感知的开销减少，并且当无线连接设备检测到频率时发生的传输失败是 减少

公开(公告)号：US20250142572A1

公开(公告)日：2025-05-01

申请号：US18930074

申请日：2024-10-29

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Kyung Yul CHEON ,  Hye Yeon KWON ,  Kyung Won KIM ,  Seung Keun PARK ,  Eun Sook JIN

IPC: H04W72/20 ,  H04B17/318 ,  H04L5/00 ,  H04W56/00 ,  H04W72/1273

Abstract: The present disclosure relates to a method for determining whether a resource is occupied in a mobile communication system and a device therefor. A method for determining a resource occupancy in a mobile communication network according to an embodiment of the present disclosure may include calculating an occupancy threshold value based on received power for a transmission-limited resource; and based on a reference signal correlation power value for a specific resource block and the occupancy threshold value, determining whether the specific resource block is occupied.

公开(公告)号：US20150207593A1

公开(公告)日：2015-07-23

申请号：US14589328

申请日：2015-01-05

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Kyung Yul CHEON ,  Eun Sook JIN ,  Chang Joo KIM

IPC: H04L1/16 ,  H04L27/26 ,  H04L1/18 ,  H04W74/08

CPC classification number: H04L27/2627 ,  H04L1/1812 ,  H04L1/1845 ,  H04L27/2647 ,  H04W74/0825

Abstract: A method and apparatus of an effective and reliable retransmission based on soft combining when using orthogonal frequency division multiplexing (OFDM) modulation technique in a contention based access system. The method includes receiving a data signal from a transmission node, performing soft combining the valid section part of the data signal which have been previously received and the data signal currently received, determining a collision section of the data signal which is currently received, and saving a valid section part except the collision section of the data signal which is currently received in a buffer. In the contention based access system that uses OFDM modulation technique, in case that data signal reception failure occurs due to a transmission collision, the valid part of the received data signal may be detected and effectively applied to the soft combining, and consequently, the reception probability of data signal can be increased.

Abstract translation: 一种在基于竞争的接入系统中使用正交频分复用（OFDM）调制技术时，基于软组合的有效且可靠的重传的方法和装置。 该方法包括从发送节点接收数据信号，对先前接收到的数据信号的有效部分部分和当前接收的数据信号进行软组合，确定当前接收到的数据信号的冲突部分并保存 除了当前在缓冲器中接收的数据信号的冲突部分之外的有效部分部分。 在使用OFDM调制技术的基于争用的接入系统中，在由于传输冲突而发生数据信号接收失败的情况下，接收到的数据信号的有效部分可以被检测并有效地应用于软合并，因此接收 可以增加数据信号的概率。

公开(公告)号：US20150017926A1

公开(公告)日：2015-01-15

申请号：US14489135

申请日：2014-09-17

Applicant: Electronics and Telecommunications Research Institute

Inventor： Hyeyeon KWON ,  Kyung Yul CHEON ,  Mi Jeong YANG ,  Aesoon PARK

IPC: H04W24/04 ,  H04W52/00

CPC classification number: H04W24/04 ,  G01R31/3689 ,  H04W52/00

Abstract: Provided is a machine type communication system including a machine type communication device operating with a battery. The machine type communication system may monitor a residual power of the battery supplying power to the machine type communication device, and may output the monitored residual power to a device of a manager that manages the machine type communication device. Also, a point in time when the residual power of the battery is to be monitored may be determined based on the residual power.

Abstract translation: 提供一种包括与电池一起操作的机器型通信装置的机器型通信系统。 机器型通信系统可以监视向机器型通信设备供电的剩余电力，并且可以将监视的​​剩余电力输出到管理机器类型通信设备的管理器的设备。 此外，可以基于剩余功率来确定要监视电池的剩余功率的时间点。