Patent ID: 9544918
Date: 2017-01-10
CPC Classifications: H04W

Claim:
1. A communication method in a communication system comprising a first radio communication device and a second radio communication device, the method comprising: the first radio communication device broadcasting a default transmission profile to the second radio communication device; if a response to a preamble signature sent from the second radio communication device to the first radio communication device is an acknowledgement, the second radio communication device performing data transmission to the first radio communication device using a first resource determined based on the default transmission profile; if a response to the preamble signature is a negative acknowledgement which has been received together with a dedicated resource allocation information, the second radio communication device performing a second data transmission to the first radio communication device using a second resource which is dedicatedly allocated to the second radio communication device by the dedicated resource allocation information, wherein the second data transmission is different from a preamble signature retransmission.