Method and apparatus for scheduling in a wireless communication system
Provided is a method and apparatus for scheduling in a wireless communication system. In the method, if frame configuration information is transmitted, the frame configuration information sets each sub-frame within a frame to either a default sub-frame or a variable sub-frame and transmits scheduling information which schedules the configured variable sub-frame; and if a signal based on the scheduling information from the configured variable sub-frame is transceived, the default sub-frame becomes a sub-frame for which the transmission direction is fixed, and the configured sub-frame is used as an uplink sub-frame or a downlink sub-frame according to the scheduling information.
1. A method of configuring subframes in a wireless communication system, the method performed by a user equipment (UE) and comprising:
receiving frame configuration information from a base station;
configuring each of subframes in a frame to any one of a downlink subframe, a special subframe and an uplink subframe based on the frame configuration information, wherein the special subframe includes a downlink pilot time slot (DwPTS), a guard period (GP) and an uplink pilot time slot (UpPTS); and
communicating with the base station using the configured subframes,
wherein a subframe configured to the downlink subframe or the special subframe cannot be used as an uplink subframe, and
wherein a subframe configured to the uplink subframe can be used as a downlink subframe.
2. The method of claim 1 , wherein the frame configuration information is received through a radio resource control (RRC) message.
3. The method of claim 1 , wherein the frame configuration information indicates any one of uplink-downlink configurations included in the below table
Uplink-downlink
Subframe number
configuration
0
1
2
3
4
5
6
7
8
9
0
D
S
U
U
U
D
S
U
U
U
1
D
S
U
U
D
D
S
U
U
D
2
D
S
U
D
D
D
S
U
D
D
3
D
S
U
U
U
D
D
D
D
D
4
D
S
U
U
D
D
D
D
D
D
5
D
S
U
D
D
D
D
D
D
D
6
D
S
U
U
U
D
S
U
U
D.
4. The method of claim 1 , wherein the subframe configured to the downlink subframe is used for transmitting a synchronous signal or a broadcast signal.
5. The method of claim 4 , wherein if the frame consists of 10 subframes and is indexed from 0 to 9 in sequence, subframes configured to a special subframe in the frame comprise a subframe # 1 .
6. The method of claim 1 , wherein if the frame consists of 10 subframes and is indexed from 0 to 9 in sequence, subframes configured to a downlink subframe in the frame comprise a subframe # 0 and a subframe # 5 .
7. A user equipment (UE) comprising:
a radio frequency (RF) unit configured to transmit and receive a radio signal; and
a processor coupled to the RF unit,
wherein the processor is configured to:
receive frame configuration information from a base station,
configure each of subframes in a frame to any one of a downlink subframe, a special subframe and an uplink subframe based on the frame configuration information, wherein the special subframe includes a downlink pilot time slot (DwPTS), a guard period (GP) and an uplink pilot time slot (UpPTS), and
communicate with the base station using the configured subframes,
wherein a subframe configured to the downlink subframe or the special subframe cannot be used as an uplink subframe, and
wherein a subframe configured to the uplink subframe can be used as a downlink subframe.
8. The UE of claim 7 , wherein the frame configuration information is received through a radio resource control (RRC) message.
9. The UE of claim 7 , wherein the frame configuration information indicates any one of uplink-downlink configurations included in the below table:
Uplink-downlink
Subframe number
configuration
0
1
2
3
4
5
6
7
8
9
0
D
S
U
U
U
D
S
U
U
U
1
D
S
U
U
D
D
S
U
U
D
2
D
S
U
D
D
D
S
U
D
D
3
D
S
U
U
U
D
D
D
D
D
4
D
S
U
U
D
D
D
D
D
D
5
D
S
U
D
D
D
D
D
D
D
6
D
S
U
U
U
D
S
U
U
D.
10. The UE of claim 7 , wherein the subframe configured to the downlink subframe is used for transmitting a synchronous signal or a broadcast signal.
11. The UE of claim 7 , wherein if the frame consists of 10 subframes and is indexed from 0 to 9 in sequence, subframes configured to a downlink subframe in the frame comprise a subframe # 0 and a subframe # 5 .
12. The UE of claim 11 , wherein if the frame consists of 10 subframes and is indexed from 0 to 9 in sequence, subframes configured to a special subframe in the frame comprise a subframe # 1 .