Electronics and Telecommunications Research Institute

Taesoo Kwon

Jae Heung Kim

Ji Hyung Kim

Changhee Lee

Jung-Im Kim

Moon-Sik Lee

Ok-Sun Park

Hyun-Yong Hwang

JaeSheung Shin

Sung-Min Oh

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.

Method and apparatus for controlling random access opportunity in mobile communication system

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.

Transmit power control method of terminal in direct communication between terminals, and terminal supporting the same

Growing community of inventors

Hwaseong-si Gyeonggi-do, South Korea

Taesoo Kwon