公开(公告)号：US10237895B2

公开(公告)日：2019-03-19

申请号：US14866170

申请日：2015-09-25

Applicant: Samsung Electronics Co., Ltd.

Inventor： Soeng-Hun Kim Kim ,  Gert Jan Van Lieshout ,  Sung-Ho Choi

IPC: H04W74/08 ,  H04W74/00 ,  H04W88/02

Abstract: A method and apparatus for initiating communications on a shared channel in a mobile communication system are provided. A user equipment transmits an uplink signal for requesting communications on the shared channel to a Node B, and waits for a delay duration without monitoring a downlink after transmitting the uplink signal. When the delay duration has elapsed, the user equipment monitors the downlink during a valid period and determines whether a downlink signal responding to the uplink signal is received in a transmission time interval within the valid period. When the downlink signal is received in the valid period, the user equipment transmits and receives data on the shared channel.