MAC multiplexing and TFC selection procedure for enhanced uplink
A wireless transmit/receive unit (WTRU) is configured to receive at least one serving grant and at least one non-scheduled grant. The at least one serving grant is a grant for scheduled data transmission. The at least one non-scheduled grant is a grant for non-scheduled data transmission. The WTRU is configured to determine supported enhanced dedicated channel transport format combinations (E-TFCs) within a E-TFC set (E-TFCS) based on a remaining transmit power for enhanced uplink (EU) transmission. The WTRU is configured to limit medium access control for dedicated channel (MAC-d) flow data multiplexed into a medium access control for enhanced uplink (MAC-e) protocol data unit (PDU) to a largest E-TFC size that is smaller than a size of MAC-d flow data allowed by the received serving and non-scheduled grants and available for transmission.
1. A wireless transmit/receive unit (WTRU) comprising:
at least one circuit configured to receive at least one serving grant and at least one non-scheduled grant, wherein the at least one serving grant is a grant for scheduled data transmission and the at least one non-scheduled grant is a grant for non-scheduled data transmission;
the at least one circuit configured to determine supported enhanced dedicated channel transport format combinations (E-TFCs) within a E-TFC set (E-TFCS) based on a remaining transmit power for enhanced uplink (EU) transmission; and
the at least one circuit configured to limit medium access control for dedicated channel (MAC-d) flow data multiplexed into a medium access control for enhanced uplink (MAC-e) protocol data unit (PDU) to a largest E-TFC size that is smaller than a size of MAC-d flow data allowed by the received serving and non-scheduled grants and available for transmission.
2. The WTRU of claim 1 further comprising:
the at least one circuit configured to select a smallest possible E-TFC that is required to support the amount of data allowed to be multiplexed by the at least one of the serving and non-scheduled grants.
3. The WTRU claim 1 , wherein the amount of MAC-d flow data to be multiplexed into the MAC-e PDU is based on the largest E-TFC that is smaller than the size of MAC-d flow data allowed by the received serving and non-scheduled grants on a condition that there is no E-TFC equal to the size of MAC-d flow data allowed by the received serving and non-scheduled grants and available for transmission.
4. The WTRU of claim 3 , wherein a size of any scheduling information scheduled to be transmitted in the MAC-e PDU is included in determining the next smallest E-TFC.
5. A method for multiplexing data implemented by a wireless transmit/receive unit (WTRU), the method comprising:
receiving at least one serving grant and at least one non-scheduled grant, wherein the at least one serving grant is a grant for scheduled data transmission and the at least one non-scheduled grant is a grant for non-scheduled data transmission;
determining supported enhanced dedicated channel transport format combinations (E-TFCs) within a E-TFC set (E-TFCS) based on a remaining transmit power for enhanced uplink (EU) transmission; and
limiting medium access control for dedicated channel (MAC-d) flow data multiplexed into a medium access control for enhanced uplink (MAC-e) protocol data unit (PDU) to a largest E-TFC size that is smaller than a size of MAC-d flow data allowed by the received serving and non-scheduled grants and available for transmission.
6. The method of claim 5 further comprising:
selecting a smallest possible E-TFC that is required to support the amount of data allowed to be multiplexed by the at least one of the serving and non-scheduled grants.
7. The method of claim 5 wherein the amount of MAC-d flow data to be multiplexed into the MAC-e PDU is based on the largest E-TFC that is smaller than the size of MAC-d flow data allowed by the received serving and non-scheduled grants on a condition that there is no E-TFC equal to the size of MAC-d flow data allowed by the received serving and non-scheduled grants and available for transmission.
8. The method of claim 7 wherein a size of any scheduling information scheduled to be transmitted in the MAC-e PDU is included in determining the next smallest E-TFC.