Patent ID: 9094909
Filing Date: 2015-07-28
Classification: H04W

Abstract:
1. A radio communication system including: a base station device that receives a random access preamble and transmits a random access response in response to the random access preamble, a mobile station device that transmits the random access preamble to the base station device, monitors both a Cell-Radio Network Temporary Identity (C-RNTI) and a Random Access-Radio Network Temporary Identity (RA-RNTI), and receives, upon detection of the C-RNTI and the RA-RNTI in a same sub-frame, both the random access response and the downlink data, wherein the RA-RNTI is carried by a first downlink control channel and identifies the random access response, and wherein the C-RNTI is carried by a second downlink control channel and notifies a resource assignment of downlink data.