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 method for transmitting a higher layer data flow using multiple transport blocks (TBs) in a transmission time interval (TTI) the method comprising:
receiving two uplink physical resource allocations, wherein each uplink physical resource allocation includes a modulation and coding scheme (MCS) and a set of sub-carriers associated with a different frequency, wherein each uplink physical resource allocation is associated with a different hybrid automatic repeat request (H-ARQ) process, wherein each uplink physical resource allocation is based on channel quality measurements and supports quality of service (QoS) requirements of the higher layer data flow;
multiplexing the higher layer data flow into at least two TBs, wherein each TB is associated with one of the different H-ARQ processes; and
transmitting each of the TBs via the one of the different H-ARQ processes associated with each TB in the TTI.
2. The method of claim 1 further comprising:
mapping the higher layer data flows to more than one multiplexing and link adaptation processor, wherein each multiplexing and link adaptation processor is associated with one of the different H-ARQ processes in a common TTI for QoS normalization.
3. The method of claim 1 wherein the QoS requirements across different H-ARQ processes are common.
4. The method of claim 1 further comprising transmitting the TBs via the different H-ARQ processes simultaneously in the TTI.
5. The method of claim 1 wherein the transmitting is performed using multiple antennas and the two uplink physical resource allocations include identifiers based on independent spatial data streams.
6. A wireless transmit/receive unit (WTRU) for transmitting a higher layer data flow using multiple transport blocks (TBs) in a transmission time interval (TTI), the WTRU comprising:
circuitry configured to receive two uplink physical resource allocations, wherein each uplink physical resource allocation includes a modulation and coding scheme (MCS) and a set of sub-carriers associated with a different frequency, wherein each uplink physical resource allocation is associated with a different hybrid automatic repeat request (H-ARQ) process, wherein each uplink physical resource allocation is based on channel quality measurements and supports quality of service QoS requirements of the higher layer data flow; and
wherein the circuitry is further configured to multiplex the higher layer data flows into at least two TBs, wherein each TB is associated with one of the different H-ARQ processes and transmit each of the TBs via the one of the different H-ARQ processes associated with each TB in the TTI.
7. The WTRU of claim 6 further comprising circuitry configured to map the higher layer data flows to more than one multiplexing and link adaptation processor, wherein each multiplexing and link adaptation processor is associated with one of the different H-ARQ processes in a common TTI for QoS normalization.
8. The WTRU of claim 6 wherein the QoS requirements across the H-ARQ processes are common.
9. The WTRU of claim 6 further comprising circuitry configured to transmit the TBs via the different H-ARQ processes simultaneously in the TTI.
10. The WTRU of claim 6 further comprising circuitry configured to transmit two uplink physical resource allocations using multiple antennas, wherein the two uplink physical resource allocations include identifiers based on independent spatial data streams.
11. An evolved Node-B (eNB) comprising:
circuitry configured to transmit two uplink physical resource allocations, wherein each uplink physical resource allocation includes a modulation and coding scheme (MCS) and a set of sub-carriers associated with a different frequency, wherein each uplink physical resource allocation is associated with a different hybrid automatic repeat request (H-ARQ) process at a wireless transmit/receive unit (WTRU), wherein each uplink physical resource allocation is based on channel quality measurements and supports quality of service (QoS) requirements of a higher layer data flow in the WTRU; and
circuitry is further configured to receive and process at least two transport blocks (TBs) in a transmission time interval (TTI) from the WTRU based on the two uplink physical resource allocations.
12. The eNB of claim 11 wherein the QoS requirements across the H-ARQ processes are common.
13. The eNB of claim 11 wherein and the two uplink physical resource allocations include identifiers based on independent spatial data streams.