公开(公告)号：US09814093B2

公开(公告)日：2017-11-07

申请号：US14597482

申请日：2015-01-15

Applicant: Electronics and Telecommunications Research Institute

Inventor： Jung Sun Um ,  Hoi Yoon Jung ,  Byung Jang Jeong ,  Sung Jin Yoo ,  Jae Ick Choi

IPC: H04L5/14 ,  H04W84/12 ,  H04B7/26 ,  H04W16/14 ,  H04L5/00 ,  H04W56/00

CPC classification number: H04W84/12 ,  H04B7/2656 ,  H04L5/0048 ,  H04L5/14 ,  H04W16/14 ,  H04W56/001

Abstract: Provided are a data frame structure of a wireless communication system, which follows a sharing protocol which may be operated to coexist with a system that operates in an unlicensed spectrum, such as a WiFi system, and the like in the wireless communication system using a licensed spectrum such as an LTE system and an operation method of the system, and a terminal and a device of a base station for the operation.

公开(公告)号：US09553710B2

公开(公告)日：2017-01-24

申请号：US14524448

申请日：2014-10-27

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Sung Hyun Hwang ,  Sung Jin Yoo ,  Jung Sun Um ,  Byung Jang Jeong ,  Jae Ick Choi

IPC: H04W72/08 ,  H04L5/00

CPC classification number: H04L5/0062 ,  H04L5/001

Abstract: Provided herein is a method and apparatus for heterogeneous carrier aggregation, the method including calculating interferences regarding a plurality of interference paths between an adjacent cell and serving cell; determining weighted values for the plurality of interference paths in the serving cell; calculating an accumulated value (accumulated margin or accumulated interference) regarding the plurality of interference paths based on the weighted values in the serving cell; determining a component carrier to be used in the carrier aggregation based on the accumulated value calculated in the serving cell; and performing the carrier aggregation based on the component carrier determined.

Abstract translation: 本文提供了一种用于异构载波聚合的方法和装置，所述方法包括：计算关于相邻小区和服务小区之间的多个干扰路径的干扰; 确定所述服务小区中的所述多个干扰路径的加权值; 基于所述服务小区中的加权值来计算关于所述多个干扰路径的累积值（累积容限或累积干扰）; 基于在所述服务小区中计算出的累计值，确定要在所述载波聚合中使用的分量载波; 以及基于所确定的分量载波来执行载波聚合。

公开(公告)号：US09473180B2

公开(公告)日：2016-10-18

申请号：US14946255

申请日：2015-11-19

Applicant: Electronics and Telecommunications Research Institute

Inventor： Kyu Min Kang ,  Seung Keun Park ,  Jae Cheol Park ,  Jung Sun Um

IPC: H04B1/04 ,  H04B1/16 ,  H04L27/12 ,  H03K7/06

CPC classification number: H04B1/04 ,  H03B21/01 ,  H03K7/06 ,  H04L27/12

Abstract: Disclosed is an apparatus for converting a frequency. The apparatus includes: an oscillator configured to generate a first oscillation signal having a first oscillation frequency which is obtained by subtracting an input frequency from a carrier frequency of any one carrier signal among a first to a n-th carrier signals (n is a natural number), and generate a second oscillation signal having a second oscillation frequency which is obtained by adding the input frequency to a carrier frequency of any one carrier signal among a (n+1)-th to a 2n-th carrier signals; and a mixer configured to mix and output the first oscillation signal or the second oscillation signal with an input signal having the input frequency.

Abstract translation: 公开了一种用于转换频率的装置。 该装置包括：振荡器，被配置为产生具有第一振荡频率的第一振荡信号，所述第一振荡频率通过从第一至第n载波信号中的任何一个载波信号的载波频率中减去输入频率而获得（n是自然的 并且生成具有第二振荡频率的第二振荡信号，所述第二振荡频率通过将输入频率与第（n + 1）至第2n载波信号中的任何一个载波信号的载波频率相加而获得; 以及混频器，被配置为利用具有输入频率的输入信号混合并输出第一振荡信号或第二振荡信号。

公开(公告)号：US09288090B2

公开(公告)日：2016-03-15

申请号：US14599640

申请日：2015-01-19

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Hoi Yoon Jung ,  Jung Sun Um ,  Byung Jang Jeong ,  Jae Ick Choi

IPC: H04L27/00

CPC classification number: H04L27/0006

Abstract: The present disclosure relate to a spectrum sensing method and a spectrum sensing device. The spectrum sensing method includes: (a) sampling a received signal: (b) calculating a first operation value relating to a strength of the received signal based on the sampled signal; (c) searching for a first frequency band having the largest correlation with an input signal based on the sampled signal; (d) calculating a first residual component signal by removing a signal component in the first frequency band from the received signal; (e) calculating a second operation value relating to a strength of the first residual component signal; and (f) determining whether the frequency band occupied in the received signal is present based on a relative value of the first operation value and the second operation value.

Abstract translation: 本公开涉及一种频谱感测方法和频谱感测装置。 频谱感测方法包括：（a）对接收信号进行采样;（b）基于采样信号计算与接收信号的强度有关的第一操作值; （c）基于采样信号搜索与输入信号具有最大相关性的第一频带; （d）通过从接收信号中去除第一频带中的信号分量来计算第一残差分量信号; （e）计算与第一残差分量信号的强度相关的第二运算值; 以及（f）基于第一操作值和第二操作值的相对值来确定接收信号中占用的频带是否存在。