Method and apparatus for transmitting frame in wireless communication system including relay station
AssigneeLG Electronics Inc.
InventorsJin Young Chun, Han Gyu Cho, Jin Sam Kwak, Dong Guk Lim, Bin Chul Ihm, Young Soo Yuk
Life of this patent
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Abstract
Provided are a method and an apparatus for transmitting a frame in a wireless communication system including a relay station. A base station sets a frame including a downlink (DL) access zone for transmitting a signal to the relay station and a DL relay zone for transmitting the signal to the relay station or a terminal, and transmits the frame. The DL access zone comprises a multiple-input multiple-output (MIMO) midamble for the terminal and the DL relay zone comprises an R-amble as an additional MIMO midamble.
Claims10
A method of communicating by a base station in a wireless communication system including a relay station, the method comprising:
- configuring, by the base station, a downlink (DL) access zone for communicating with a mobile station and a DL relay zone for communicating with the relay station or the mobile station;
- transmitting, by the base station, a multiple-input multiple-output (MIMO) midamble for the mobile station in the DL access zone;
- and
- when an R-amble indicator is included in a specific field in a DL message, transmitting, by the base station, an R-amble for the relay station in the DL relay zone, the R-amble being an additional MIMO midamble for the relay station, the R-amble indicator indicating whether or not the R-amble should be transmitted in the DL relay zone;
- wherein, if the R-amble indicator is set with a specific value, the R-amble is to be transmitted;
- wherein the R-amble indicator is transmitted to the mobile station through a secondary-superframe header (S-SFH) SP2.
An apparatus configured to transmit data in a wireless communication system, the apparatus comprising:
- a radio frequency (RF) unit receiving configured to transmit or receive a radio signal;
- and
- a processor coupled to the RF unit,
- wherein the processor is c configured to:
- configure a downlink (DL) access zone for communicating only with a mobile station and a DL relay zone for communicating with the relay station or the mobile station;
- transmit a multiple-input multiple-output (MIMO) midamble for the mobile station in the DL access zone;
- and
- when an R-amble indicator is included in a specific field in a DL message, transmit an R-amble for the relay station in the DL relay zone, the R-amble being an additional MIMO midamble for the relay station, the R-amble indicator indicating whether or not the R-amble should be transmitted in the DL relay zone;
- wherein, if the R-amble indicator is set with a specific value, the R-amble is to be transmitted;
- wherein the R-amble indicator is transmitted to the mobile station through a secondary-superframe header (S-SFH) SP2.
Dependencies are inferred from the claim text.