Patent ID: 9750054
Date: 2017-08-29
CPC Classifications: H04L,H04W

Claim:
1. A method for performing a random access by a user equipment, the method comprising: determining a time period for receiving a random access response; receiving the random access response from a base station within the time period; extracting information associated with a subframe number of a subframe in which a random access preamble was transmitted by the user equipment; and identifying the random access response responsive to the random access preamble based on the information, wherein the time period starts at a time point after an end time of transmitting the random access preamble, the time period being calculated based on a subframe number corresponding to the end time, and wherein a start subframe number of the time period corresponding to the time point is obtained by adding an offset to the subframe number corresponding to the end time, and the offset equals three.