Pilot transmission by relay stations in a multihop relay communication system

A method for wireless communication, comprising:

• receiving from a first station information indicative of a first pilot format;
• receiving data and a first pilot from the first station, wherein the first pilot is received in accordance with the first pilot format;
• and
• resending the data and sending a second pilot to a second station.

An apparatus for wireless communication, comprising:

• means for receiving from a first station information indicative of a first pilot format;
• means for receiving data and a first pilot from the first station, wherein the first pilot is received in accordance with the first pilot format;
• and
• means for resending the data and sending a second pilot to a second station.

A computer program product, the computer program product comprising a non-transitory computer-readable medium storing instructions executable by a processor to:

• receive from a first station information indicative of a first pilot format;
• receive data and a first pilot from the first station, wherein the first pilot is received in accordance with the first pilot format;
• and
• resend the data and send a second pilot to a second station.

An apparatus for wireless communication, comprising:

• a processor;
• memory in electronic communication with the processor;
• and
• instructions stored in the memory, the instructions being executable by the processor to:
• receive information indicative of a pilot format;
• receive data and pilot from a relay station, the data being sent from a base station to the relay station and resent by the relay station to the apparatus, the pilot being sent directly from the relay station to the apparatus, wherein the pilot is received from the relay station in accordance with the pilot format;
• and
• perform detection for the data received from the relay station based on the pilot.

A method for wireless communication, comprising:

• receiving information indicative of a pilot format;
• receiving data and pilot from a relay station, the data being sent from a base station to the relay station and resent by the relay station to a subscriber station, the pilot being sent directly from the relay station to the subscriber station, wherein the pilot is received from the relay station in accordance with the pilot format;
• and
• performing detection for the data received from the relay station based on the pilot.