Method and apparatus for frame structure configuration and information transmission for short TTI
Provided are a method for configuring a short-TTI frame structure in a 3GPP LTE/LTE-advanced system, a method for transmitting, to a terminal, information on the configured short-TTI frame structure, and a method for receiving short-TTI frame structure configuration information by a terminal. The method may include: receiving, by the terminal, configuration information of a short-TTI configured to have a predetermined number of symbols; and receiving data through a frame structure including the short-TTI configured to have the predetermined number of symbols on the basis of the configuration information of the short-TTI.
1. A method of a user equipment (UE) for receiving short transmission time interval (TTI) frame structure configuration information, the method comprising:
receiving a radio resource control (RRC) signal including first configuration information of a short TTI and second configuration information of resource blocks (RBs) related to the short TTI; and
receiving data within a frame structure that includes short TTIs, based on the first configuration information of the short TTI,
wherein the short TTIs are configured based on at least one of a first pattern and a second pattern,
wherein the at least one of the first pattern and the second pattern is selected based on a number of symbols used for a physical downlink control channel (PDCCH), and
wherein the first pattern includes four sets of two symbols and two sets of three symbols among a total 14 symbols.
2. The method of claim 1 , further comprising:
transmitting data within the frame structure including the short TTIs.
3. A method of a base station for transmitting short transmission time interval (TTI) frame structure configuration information, the method comprising:
configuring a short TTI;
transmitting a radio resource control (RRC) signal including first configuration information of the configured short TTI to a user equipment (UE) and second configuration information of resource blocks (RBs) related to the short TTI; and
transmitting data within a frame structure including shirt TTIs,
wherein the short TTIs are configured based on at least one of a first pattern and a second pattern,
wherein the at least one of the first pattern and the second pattern is selected based on a number of symbols used for a physical downlink control channel (PDCCH), and
wherein the first pattern includes four sets of two symbols and two sets of three symbols among a total 14 symbols.
4. The method of claim 3 , further comprising:
receiving data within the frame structure that includes the short TTIs.
5. A user equipment (UE) for receiving short transmission time interval (TTI) frame structure configuration information, the UE comprising:
a receiver configured to receive a radio resource control (RRC) signal including first configuration information of a short TTI and second configuration information of resource blocks (RBs) related to the short TTI; and
a controller configured to control the receiver to receive data within a frame structure including short TTIs, based on the first configuration information of the short TTI,
wherein the short TTIs are configured based on at least one of a first pattern and a second pattern,
wherein the at least one of the first pattern and the second pattern is selected based on a number of symbols used for a physical downlink control channel (PDCCH), and
wherein the first pattern includes four sets of two symbols and two sets of three symbols among a total 14 symbols.
6. The UE of claim 5 , further comprising:
a transmitter configured to transmit data within the frame structure that includes the short TTIs.