Method and apparatus for selecting multiple transport formats and transmitting multiple transport blocks simultaneously with multiple H-ARQ processes
A method and apparatus for selecting multiple transport formats and transmitting multiple transport blocks (TBs) in a transmission time interval simultaneously with multiple hybrid automatic repeat request (H-ARQ) processes in a wireless communication system are disclosed. Available physical resources and H-ARQ processes associated with the available physical resources are identified and channel quality of each of the available physical resources is determined. Quality of service (QoS) requirements of higher layer data to be transmitted are determined. The higher layer data is mapped to at least two H-ARQ processes. Physical transmission and H-ARQ configurations to support QoS requirements of the higher layer data mapped to each H-ARQ process are determined. TBs are generated from the mapped higher layer data in accordance with the physical transmission and H-ARQ configurations of each H-ARQ process, respectively. The TBs are transmitted via the H-ARQ processes simultaneously.
1. A wireless transmit/receive unit (WTRU) comprising:
a receiver configured to receive a control message that includes an allocation of available physical resources and transmission parameters for the WTRU to transmit uplink data using transport blocks during a period of multiple time intervals, the available physical resources and transmission parameters including: antenna information, a frequency domain resource allocation, periodicity information, duration information, modulation and coding scheme (MCS) information, a number of hybrid automatic repeat request (HARQ) processes, transmit power information, and transport block size information; and
a transmitter configured to transmit uplink data in the transport blocks using the available physical resources and transmission parameters.
2. The WTRU of claim 1 , wherein the transmitter is further configured to transmit feedback relating to different spatial beams.
3. The WTRU of claim 1 wherein the control message that includes the allocation of available physical resources and transmission parameters further includes a hopping pattern.
4. The WTRU of claim 1 , wherein the control message that includes the allocation of available physical resources and transmission parameters is received at the start of a time period.
5. The WTRU of claim 1 , wherein the receiver is further configured to receive HARQ feedback for each of the transport blocks.
6. The WTRU of claim 5 , wherein the transmitter is further configured to retransmit, using the available physical resources and transmission parameters, any of the transmit blocks for which the HARQ feedback indicated a negative acknowledgment.
7. A method performed by a wireless transmit/receive unit (WTRU), the method comprising:
receiving a control message that includes an allocation of available physical resources and transmission parameters for the WTRU to transmit uplink data using transport blocks during a period of multiple time intervals, the available physical resources and transmission parameters including: antenna information, a frequency domain resource allocation, periodicity information, duration information, modulation and coding scheme (MCS) information, a number of hybrid automatic repeat request (HARQ) processes, transmit power information, and transport block size information; and
transmitting uplink data in the transport blocks using the available physical resources and transmission parameters.
8. The method of claim 7 , further comprising:
transmitting feedback relating to different spatial beams.
9. The method of claim 7 , wherein the control message that includes the allocation of available physical resources and transmission parameters further includes a hopping pattern.
10. The method of claim 7 , wherein the control message that includes the allocation of available physical resources and transmission parameters is received at the start of a time period.
11. The method of claim 7 , further comprising receiving HARQ feedback for each of the transport blocks.
12. The method of claim 11 , further comprising retransmitting, using the available physical resources and transmission parameters, any of the transmit blocks for which the HARQ feedback indicates a negative acknowledgment.