Method and apparatus for transmitting and receiving downlink data
A method of receiving, by a user equipment (UE) that is configured to operate in transmission mode 10, downlink data in a wireless communication system. The method includes: receiving, in a transmission time interval (TTI), downlink control information (DCI) that includes resource element (RE) mapping information. The method also includes receiving, in a plurality of TTIs subsequent to the TTI in which the DCI was received, repeated transmissions of the downlink data to which the RE mapping information has been applied.
1. A method for receiving data by a user equipment (UE) in a wireless communication system, the method comprising:
receiving, in a first short transmission time interval (sTTI), downlink control information (DCI) including information regarding a Physical Downlink Shared Channel (PDSCH) resource element (RE) mapping and Quasi Co-location Indicator; and
receiving, based on the DCI, repeated data transmissions in a plurality of sTTIs including the first sTTI,
wherein the PDSCH RE mapping and Quasi Co-location Indicator is identically applied to all the repeated data transmissions in the plurality of sTTIs.
2. The method of claim 1 , wherein the UE is configured to operate in transmission mode 10.
3. The method of claim 1 , wherein the plurality of sTTIs are consecutive.
4. The method of claim 1 , wherein a number of the repeated data transmissions is greater than 1.
5. The method of claim 1 , wherein the repeated data transmissions are received only in one subframe, based on a transmission mode.
6. The method of claim 1 , wherein the DCI is decoded based on cell-radio network temporary identifier (C-RNTI) for data scheduling.
7. A User Equipment (UE) configured to receive data in a wireless communication system, the UE comprising:
at least one transceiver;
at least one processor; and
at least one computer memory operably connectable to the at least one processor and storing instructions that, when executed, cause the at least one processor to perform operations comprising:
receiving, in a first short transmission time interval (sTTI), downlink control information (DCI) including information regarding a Physical Downlink Shared Channel (PDSCH) resource element (RE) mapping and Quasi Co-location Indicator; and
receiving, based on the DCI, repeated data transmissions in a plurality of sTTIs including the first sTTI,
wherein the PDSCH RE mapping and Quasi Co-location Indicator is identically applied to all the repeated data transmissions in the plurality of sTTIs.
8. The UE of claim 7 , wherein the UE is configured to operate in transmission mode 10.
9. The UE of claim 7 , wherein the plurality of sTTIs are consecutive.
10. The UE of claim 7 , wherein a number of the repeated data transmissions is greater than 1.
11. The UE of claim 7 , wherein the repeated data transmissions are received only in one subframe, based on transmission mode.
12. The UE of claim 7 , wherein the DCI is decoded based on cell-radio network temporary identifier (C-RNTI) for data scheduling.
13. An apparatus configured to perform operations for a user equipment (UE), the apparatus comprising:
at least one processor; and
at least one computer memory operably connectable to the at least one processor and storing instructions that, when executed, cause the at least one processor to perform operations comprising:
receiving, in a first short transmission time interval (sTTI), downlink control information (DCI) including information regarding a Physical Downlink Shared Channel (PDSCH) resource element (RE) mapping and Quasi Co-location Indicator; and
receiving, based on the DCI, repeated data transmissions in one or more a plurality of sTTIs including the first sTTI,
wherein the PDSCH RE mapping and Quasi Co-location Indicator is identically applied to all the repeated data transmissions in the plurality of sTTIs.
14. A computer readable storage medium storing at least one computer program comprising instructions that, when executed by at least one processor, cause the at least one processor to perform operations for a user equipment (UE), the operations comprising:
receiving, in a first short transmission time interval (sTTI), downlink control information (DCI) including information regarding a Physical Downlink Shared Channel (PDSCH) resource element (RE) mapping and Quasi Co-location Indicator; and
receiving, based on the DCI, repeated data transmissions in a plurality of sTTIs including the first sTTI,
wherein the PDSCH RE mapping and Quasi Co-location Indicator is identically applied to all the repeated data transmissions in the plurality of sTTIs.