Mobile communication method, wireless base station and mobile station

A mobile communication method applied to a mobile station, the method comprising:

• receiving a signaling from a wireless base station;
• obtaining cyclic shift information of demodulation reference signal and resource group offset information of the mobile station according to the received signaling;
• determining physical channel resource which the mobile station uses for receiving response information from the wireless base station according to the resource group offset information and the cyclic shift information,
• wherein the obtaining resource group offset information of the mobile station according to the received signal comprises:
• obtaining an order of Downlink Control Information (DCI) of the mobile station in scheduling grant signal according to the received signaling, and determining the resource group offset information according to the order of the DCI in the scheduling grant signal.

A wireless base station, comprising:

• a resource group offset information determination unit, configured to determine resource group offset information used for a mobile station;
• resource group offset unit, configured to offset an initial physical channel resource group allocated to the mobile station according to the resource group offset information;
• an cyclic shift information determination unit, configured to determine an cyclic shift information of an demodulation reference signal used for the mobile station according to unused physical channel resources in the offset physical channel resource group;
• and
• a transmitting unit, configured to transmit the resource group offset information and the cyclic shift information to the mobile station,
• wherein the resource group offset information determination unit determines an order of Downlink Control Information (DCI) of the mobile station in scheduling grant signaling, and determines the resource group offset information according to the order of the DCI in the scheduling grant signaling.