Method and apparatus for effectively providing TDD configuration information to user equipment and determining uplink transmission timing in mobile communication system supporting TDD
A method for configuring a time division duplex (TDD) of a user equipment in a communication system, according to one embodiment of the present invention, comprises the steps of: receiving from a base station a first TDD configuration; receiving from the base station a message including information related to a dynamic TDD configuration; receiving a second TDD configuration according to the received information related to the dynamic TDD configuration; receiving from the base station an uplink grant; and determining whether to apply the first TDD configuration or the second TDD configuration based on a method by which the unlink grant is received. According to one embodiment of the present invention, the advantages of configuring a shorter cycle of the TDD to the user equipment supporting the TDD in a wireless communication system, and rapidly configuring the TDD to the user equipment variably according to a communication situation are provided.
1. A method of a terminal in a communication system, the method comprising:
receiving a first time division duplex (TDD) uplink/downlink (UL/DL) configuration from a base station;
receiving configuration information related to a second TDD UL/DL configuration from the base station;
receiving downlink control information indicating the second TDD configuration from the base station based on the received configuration information;
transmitting, if uplink scheduling information is received in a random access response message, a message corresponding to the uplink scheduling information to the base station based on the first TDD UL/DL configuration; and
transmitting, if uplink scheduling information is received on a physical downlink control channel (PDCCH), a message corresponding to the uplink scheduling information to the base station based on the second TDD UL/DL configuration.
2. The method of claim 1 , wherein the receiving a first TDD UL/DL configuration comprises:
receiving a system information block message including the first TDD UL/DL configuration from the base station.
3. The method of claim 1 , wherein the receiving configuration information comprises:
receiving a radio resource control message including the configuration information from the base station.
4. The method of claim 1 , wherein the transmitting a message comprises:
transmitting, if uplink scheduling information is received in a random access response message on subframe n, the message corresponding to the uplink scheduling information to the base station based on the first TDD UL/DL configuration on a subframe n+k,
wherein in the k is an integer greater than or equal to 6.
5. A terminal of a communication system, the terminal comprising:
a transceiver for transmitting and receiving a signal; and
a controller configured to:
receive a first time division duplex (TDD) uplink/downlink (UL/DL) configuration from a base station,
receive configuration information related to a second TDD UL/DL configuration from the base station,
receive downlink control information indicating the second TDD UL/DL configuration from the base station based on the received configuration information,
transmit, if uplink scheduling information is received in a random access response message, a message corresponding to the uplink scheduling information to the base station based on the first TDD UL/DL configuration, and
transmit, if uplink scheduling information is received on a physical downlink control channel (PDCCH), a message corresponding to the uplink scheduling information to the base station based on the second TDD UL/DL.
6. The terminal of claim 5 , wherein the controller is further configured to receive a system information block message including the first TDD UL/DL configuration from the base station.
7. The terminal of claim 5 , wherein the controller is further configured to receive a radio resource control message including the configuration information from the base station.
8. The terminal of claim 5 , wherein the controller is further configured to transmit, if uplink scheduling information is received in a random access response message on subframe n, the message corresponding to the uplink scheduling information to the base station based on the first TDD UL/DL configuration on a subframe n+k,
wherein in the k is an integer greater than or equal to 6.
9. A method of a base station in a communication system, the method comprising:
transmitting a first time division duplex (TDD) uplink/downlink (UL/DL) configuration to a terminal;
transmitting configuration information related to a second TDD UL/DL configuration to the terminal;
transmitting downlink control information indicating the second TDD configuration to the terminal based on the transmitted configuration information;
receiving, if uplink scheduling information is transmitted in a random response message, a message corresponding to the uplink scheduling information from the terminal based on the first TDD UL/DL configuration; and
receiving, if uplink scheduling information is transmitted on a physical downlink control channel (PDCCH), a message corresponding to the uplink scheduling information from the terminal based on the second TDD UL/DL configuration.
10. The method of claim 9 , wherein the transmitting a first TDD UL/DL configuration comprises:
transmitting a system information block message including the first TDD UL/DL configuration to the terminal.
11. The method of claim 9 , wherein the transmitting configuration information comprises:
transmitting a radio resource control message including the configuration information to the terminal.
12. The method of claim 9 , receiving a message comprises:
receiving, if uplink scheduling information is transmitted in a random access response message on subframe n, the message corresponding to the uplink scheduling information from the terminal based on the first TDD UL/DL configuration on a subframe n+k,
wherein in the k is an integer greater than or equal to 6.
13. A base station of a communication system, the base station comprising:
a transceiver for transmitting and receiving a signal; and
a controller configured to:
transmit a first time division duplex (TDD) uplink/downlink (UL/DL) configuration to a terminal,
transmit configuration information related to a second TDD UL/DL configuration to the terminal,
transmit downlink control information indicating a second TDD UL/DL configuration to the terminal based on the transmitted configuration information,
receive, if uplink scheduling information is transmitted in a random response message, a message corresponding to the uplink scheduling information from the terminal based on the first TDD UL/DL configuration, and
receive, if uplink scheduling information is transmitted on a physical downlink control channel (PDCCH), a message corresponding to the uplink scheduling information from the terminal based on the second TDD UL/DL configuration.
14. The base station of claim 13 , wherein the controller is further configured to transmit a system information block message including the first TDD UL/DL configuration to the terminal.
15. The base station of claim 13 , wherein the controller is further configured to transmit a radio resource control message including the configuration information to the terminal.
16. The base station of claim 13 , wherein the controller is further configured to receive, if the uplink scheduling information is transmitted in a random access response message on subframe n, the message corresponding to the uplink scheduling information from the terminal based on the first TDD UL/DL configuration on a subframe n+k,
wherein in the k is an integer greater than or equal to 6.