公开(公告)号：US09521629B2

公开(公告)日：2016-12-13

申请号：US14557143

申请日：2014-12-01

Applicant: Electronics and Telecommunications Research Institute

Inventor： Taesoo Kwon ,  Ji Hyung Kim ,  Moon-Sik Lee

IPC: H04Q7/00 ,  H04W52/24 ,  H04W4/00 ,  H04W52/16 ,  H04W52/46

CPC classification number: H04W52/242 ,  H04W4/70 ,  H04W52/16 ,  H04W52/46

Abstract: A transmit power control method of a terminal in direct communication between terminals is disclosed. The terminal measures a path loss gain of a base station, and compares the measured path loss gain with a predetermined threshold value. The terminal sets a power value for direct communication in the case in which the measured path loss gain is less than or equal to the predetermined threshold value, and performs the direct communication at the set power value.

Abstract translation: 公开了终端之间直接通信的终端的发射功率控制方法。 终端测量基站的路径损耗增益，并将测量的路径损耗增益与预定阈值进行比较。 在测量路径损耗增益小于或等于预定阈值的情况下，终端设置用于直接通信的功率值，并以设定功率值进行直接通信。

公开(公告)号：US10004089B2

公开(公告)日：2018-06-19

申请号：US15192328

申请日：2016-06-24

Applicant: Electronics and Telecommunications Research Institute

Inventor： Changhee Lee ,  Taesoo Kwon ,  Jae Heung Kim ,  Jung-Im Kim ,  Ok-Sun Park ,  JaeSheung Shin ,  Sung-Min Oh ,  Hyun-yong Hwang

IPC: H04W4/00 ,  H04W74/08 ,  H04W74/00

CPC classification number: H04W74/0841 ,  H04W74/006

Abstract: A base station infers a random access failure rate depending on a random access collision of terminals performing random access and controls a random access opportunity of a terminal that fails the random access by using the random access failure rate of each terminal. Also, information for the controlled random access opportunity is transmitted to the terminal that fails the random access.