Method for transceiving a signal in wireless communication system
A method of transmitting a signal using a prescribed frame structure in a wireless communication system is disclosed. A mobile station is able to transmit or receive a signal using a frame structure with a CP length corresponding to ¼ of a useful symbol. Moreover, the mobile station is able to transmit or receive a signal using a frame structure with a CP length corresponding to ¼ of a useful symbol, which is designed to mutually coexist without causing collision or interference with another frame structure with a different CP length. In this case, a channel bandwidth of the prescribed frame structure is 8.75 MHz.
1. A method for transceiving a signal using a frame structure in a wireless communication system, the method comprising:
transceiving the signal through a frame according to the frame structure,
wherein the frame comprises 6 subframes, and the 6 subframes comprise at least one first type subframe, each of the at least on first type subframe having 6 orthogonal frequency division multiple access (OFDMA) symbols and at least one second type subframe, each of the at least one second type subframe having 7 OFDMA symbols,
wherein a cyclic prefix (CP) length of each OFDMA symbol in the frame is set to ¼ of a useful symbol length, and
wherein a channel bandwidth of the frame is set to 8.75 MHz,
wherein a first subframe of the frame is a first type subframe among the at least one first type subframe, and a second subframe of the frame is a second type subframe among the at least one second type subframe, and
wherein the first subframe is located at a beginning of the frame, and the first subframe is immediately followed by the second subframe.
2. The method of claim 1 , wherein the frame is a time division duplex (TDD) frame or an frequency division duplex (FDD) frame.
3. The method of claim 2 , wherein the TDD frame includes a downlink interval and an uplink interval subsequent to the downlink interval; and
a first type subframe among the at least one first type subframe is located at the beginning of the uplink interval.
4. The method of claim 3 , wherein:
a transmit transition gap (TTG) is located between the downlink interval and the uplink interval in the TDD frame, and
an receive transition gap (RTG) is located next to a last subframe of the uplink interval in the TDD frame.
5. The method of claim 1 , wherein the TDD frame includes 4 first type subframes and 2 second type subframes.
6. The method of claim 2 , wherein a ratio of a number of downlink subframes to a number of uplink subframes in the TDD frame is set to 5:1, 4:2, 3:3, or 2:4.
7. The method of claim 2 , wherein a fourth subframe or a sixth subframe of the FDD frame is the second type subframe.
8. The method of claim 2 , wherein the FDD frame includes 3 first type subframes and 3 second type subframes.
9. The method of claim 2 , wherein an idle time is located next to a last subframe in the FDD frame.
10. An apparatus for transceiving a signal using a frame structure in a wireless communication system, the apparatus comprising:
transceiving module for transceiving the signal through a frame according to the frame structure,
wherein the frame comprises 6 subframes, and the 6 subframes comprise at least one first type subframe, each of the at least one first type subframe having 6 orthogonal frequency division multiple access (OFDMA) symbols and at least one second type subframe, each of the at least one second type subframe having 7 OFDMA symbols,
wherein a cyclic prefix (CP) length of each OFDMA symbol in the frame is set to ¼ of a useful symbol length and
wherein a channel bandwidth of the frame is set to 8.75 MHz,
wherein a first subframe of the frame is a first type subframe among the at least one first type subframe, and a second subframe of the frame is a second type subframe among the at least one second type subframe, and
wherein the first subframe is located at a beginning of the frame, and the first subframe is immediately followed by the second subframe.
11. The method of claim 2 , wherein a third subframe or a fifth subframe of the FDD frame is the first type subframe.