Method and apparatus for transmitting enhanced uplink data using a H-ARQ process
A wireless transmit/receive unit (WTRU) is configured to configure a set of hybrid automatic repeat request (H-ARQ) processes. The WTRU is configured to receive information which limits a particular MAC-d flow to accessing a limited set of H-ARQ processes. The WTRU is configured to determine whether a first H-ARQ process from the set of H-ARQ processes is available for transmitting EU data in a transmit time interval (TTI). The WTRU is configured to determine whether the particular MAC-d flow has access to the first H-ARQ process, based on the information received. The WTRU is configured to transmit data from the particular MAC-d flow in the TTI using the first H-ARQ process, on a condition that the first H-ARQ process is available for transmitting EU data in the TTI and that the particular MAC-d flow has access to the first H-ARQ process.
1. A wireless transmit/receive unit (WTRU) comprising:
a controller, operatively coupled to a transmitter and a receiver, configured to use a plurality of hybrid automatic repeat request (H-ARQ) processes;
the receiver configured to receive configuration information that identifies at least one medium access control for dedicated channel (MAC-d) flow and identifies H-ARQ processes, from the plurality of H-ARQ processes that the controller is configured to use, that data from the at least one MAC-d flow is allowed to be transmitted over;
the controller configured to identify a H-ARQ process, from the plurality of H-ARQ processes that the controller is configured to use, for transmission in a transmit time interval (TTI), wherein the identification is based on a predetermined schedule;
the controller configured to select data from at least one MAC-d flow based on the configuration information received; and
the transmitter configured to transmit the selected data in the TTI using the identified H-ARQ process.
2. The WTRU of claim 1 wherein the configuration information is received from a radio network controller (RNC).
3. The WTRU of claim 1 wherein the configuration information is received via radio resource control (RRC) signaling.
4. The WTRU of claim 1 wherein each MAC-d flow is associated with a priority.
5. The WTRU of claim 1 wherein the selected data includes data from a MAC-d flow associated with a highest priority.
6. The WTRU of claim 1 wherein the receiver is configured to receive information from a radio network controller (RNC) that indicates a number of H-ARQ processes for the WTRU to use.
7. A method for transmitting enhanced uplink (EU) data, implemented by a wireless transmit/receive unit (WTRU), the method comprising:
using a plurality of hybrid automatic repeat request (H-ARQ) processes;
receiving configuration information that identifies at least one medium access control for dedicated channel (MAC-d) flow and identifies H-ARQ processes, from the plurality of H-ARQ processes, that data from the at least one MAC-d flow is allowed to be transmitted over;
identifying a H-ARQ process, from the plurality of H-ARQ processes, for transmitting EU data in a transmit time interval (TTI), wherein the identification is based on a predetermined schedule;
selecting data from at least one MAC-d flow based on the configuration information received; and
transmitting the selected data in the TTI using the identified H-ARQ process.
8. The method of claim 7 wherein the configuration information is received from a radio network controller (RNC).
9. The method of claim 7 wherein the configuration information is received via radio resource control (RRC) signaling.
10. The method of claim 7 wherein each MAC-d flow is associated with a priority.
11. The method of claim 7 wherein the selected data includes data from a MAC-d flow associated with a highest priority.
12. The method of claim 7 , further comprising receiving information from a radio network controller (RNC) that indicates a number of H-ARQ processes for the WTRU to use.