Patent ID: 9036535
Filing Date: 2015-05-19
Classification: H04B,H04W

Abstract:
1. A mobile communication method, comprising: a step of transmitting, by a radio base station, broadcast information including a returnable period of a random access response for a mobile station and a returnable period of a random access response for a relay node; a step of transmitting, by the radio base station, a random access response to the mobile station within the returnable period of the random access response for the mobile station when a random access preamble is received from the mobile station; a step of transmitting, by a relay node, a signal to the mobile station in a subframe other than an MBSFN (Multimedia Broadcast and Multicast Service (MBMS) over a Single Frequency Network) subframe; and a step of transmitting, by the radio base station, a random access response to the relay node in the MBSFN subframe of the returnable period of the random access response for the relay node when a random access preamble is received from the relay node.