Shared data channel design
Systems, methods and instrumentalities are disclosed for decoding data. For example, it may be determined, in a current slot, whether data received in a previous slot is decoded successfully. The data received in the previous slot may be included in a Physical Downlink Shared Channel (PDSCH). If the data received in the previous slot is not decoded successfully, preemptive multiplexing information may be detected in a first search space. The data received in the previous slot may be decoded, for example, using detected preemptive multiplexing information. The preemptive multiplexing information may be of a current slot. The preemptive multiplexing information may be comprised in a first DCI. A second search space of the current slot may be searched. For example, the second search space may be searched for a second DCI. The first DCI and the second DCI may be different.
1. A wireless transmit/receive unit (WTRU), the WTRU comprising a processor and a transmit/receive unit, configured to:
receive information indicating a grant to allocate a region of a slot for an uplink data transmission;
receive downlink control information (DCI) using a radio network temporary identifier (RNTI), the received DCI including information indicating one or more transmission regions of the slot overlapping with the region of the slot allocated by the grant; and
transmit, in accordance with the information in the received DCI, only a portion of a scheduled uplink data transmission scheduled in the region of the slot allocated by the grant.
2. The WTRU of claim 1 , wherein the one or more transmission regions of the slot indicated by the information in the received DCI are transmission regions of the slot to be pre-empted.
3. The WTRU of claim 1 , wherein the processor is further configured to cancel or puncture the scheduled uplink data transmission, in the region of the slot allocated by the grant and corresponding to the indicated one or more of the transmission regions.
4. The WTRU of claim 1 , wherein the processor and the transmit/receive unit are further configured to transmit the portion of the scheduled uplink data transmission from a beginning of the region of the slot allocated by the grant to a beginning of the region of the slot allocated by the grant that overlaps with a temporally first transmission region of the indicated one or more transmission regions.
5. The WTRU of claim 1 , wherein the processor and the transmit/receive unit are further configured to transmit the portion of the scheduled uplink data transmission from the region of the slot allocated by the grant that overlaps with an end of a temporally last transmission region of the indicated one or more transmission regions to the end of the region of the slot allocated by the grant.
6. The WTRU of claim 1 , wherein the processor is further configured to:
generate the scheduled uplink data transmission; and
cancel or puncture the scheduled uplink data transmission, in accordance with the information in the received DCI, in the one or more of the transmission regions overlapping with the region of the slot allocated by the grant, to generate the portion of the scheduled uplink data transmission for transmission.
7. The WTRU of claim 1 , wherein the processor is further configured to determine, based on a type of RNTI, that the DCI includes information indicating the one or more transmission regions which is for a current slot.
8. A method implemented in a wireless transmit/receive unit (WTRU), the method comprising:
receiving information indicating a grant to allocate a region of a slot for an uplink data transmission;
receiving downlink control information (DCI) using a radio network temporary identifier (RNTI), the received DCI including information indicating one or more transmission regions of the slot overlapping with the region of the slot allocated by the grant; and
transmitting, in accordance with the information in the received DCI, only a portion of a scheduled uplink data transmission scheduled in the region of the slot allocated by the grant.
9. The method of claim 8 , wherein the one or more transmission regions of the slot indicated by the information in the received DCI are transmission regions of the slot to be pre-empted.
10. The method of claim 8 , further comprising canceling or puncturing the scheduled uplink data transmission, in the region of the slot allocated by the grant and corresponding to the indicated one or more of the transmission regions.
11. The method of claim 8 , further comprising transmitting the portion of the scheduled uplink data transmission from a beginning of the region of the slot allocated by the grant to a beginning of the region of the slot allocated by the grant that overlaps with a temporally first transmission region of the indicated one or more transmission regions.
12. The method of claim 8 , further comprising transmitting the portion of the scheduled uplink data transmission in the scheduled time period from the region of the slot allocated by the grant that overlaps with an end of a temporally last transmission region of the indicated one or more transmission regions to the end of the region of the slot allocated by the grant.
13. The method of claim 8 , further comprising:
generating the scheduled uplink data transmission; and
canceling or puncturing the scheduled uplink data transmission, in accordance with the information in the received DCI, in the one or more of the transmission regions overlapping with the region of the slot allocated by the grant, to generate the portion of the scheduled uplink data transmission for transmission.
14. The method of claim 8 , further comprising determining, based on a type of RNTI, that the DCI includes information indicating the one or more transmission regions which is for a current slot.
15. The WTRU of claim 1 , wherein the processor is further configured to monitor a common search space using the RNTI to detect the DCI.
16. The WTRU of claim 1 , wherein the information indicating one or more transmission regions of the slot overlapping with the region of the slot allocated by the grant are signaled in the DCI using a physical downlink control channel.
17. The WTRU of claim 1 , wherein the received DCI includes information indicating frequency and time resources allocated for the one or more transmission regions of the slot overlapping with the region of the slot allocated by the grant.
18. The method of claim 8 , further comprising monitoring a common search space using the RNTI to detect the DCI.
19. The method of claim 8 , wherein the information indicating one or more transmission regions of the slot overlapping with the region of the slot allocated by the grant are signaled in the DCI using a physical downlink control channel.
20. The method of claim 8 , wherein the received DCI includes information indicating frequency and time resources allocated for the one or more transmission regions of the slot overlapping with the region of the slot allocated by the grant.