Method and apparatus for versatile MAC multiplexing in evolved HSPA
AssigneeInterDigital Technology Corporation
InventorsPaul Marinier, Diana Pani, Stephen E. Terry, Sudheer A. Grandhi
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Abstract
Methods and apparatus for versatile medium access control (MAC) multiplexing in evolved HSPA are disclosed. More particularly, methods for downlink optimization of the enhanced high speed MAC (MAC-ehs) entity and uplink optimization of the MAC-i/is entity are disclosed. Apparatuses for using the optimized downlink and uplink MAC entities are also disclosed.
Claims10
A method for processing a segmentation indication (SI) field in a header of a medium access control (MAC) protocol data unit (PDU) at a wireless transmit/receive unit (WTRU), the method comprising:
- receiving, at a receiver of the WTRU, a value of the SI field in the header of the MAC PDU, the SI field corresponding to a reordering PDU that includes at least one segment of a MAC enhanced high speed (MAC-ehs) SDU;
- and
- performing reassembly of one or more MAC PDUs at a reassembly unit by delivering the one or more MAC PDUs to a demultiplexing unit based on the value of the SI field, wherein, on a condition that the SI field has the value of “01” or “11” which indicates that a first reordering SDU of the reordering PDU is a last MAC-ehs SDU segment, the one or more MAC PDUs are delivered based on whether a received MAC-ehs SDU segment and a stored MAC-ehs SDU segment are consecutive, and wherein, on a condition that the SI field has the value of “10” or “11” which indicates that a last reordering SDU of the reordering PDU is a first MAC-ehs SDU segment, the one or more MAC PDUs correspond to each reordering SDU in the reordering PDU except the last reordering SDU.
A wireless transmit/receive unit (WTRU) for processing a segmentation indication (SI) field in a header of a medium access control (MAC) protocol data unit (PDU), the WTRU comprising:
- a receiver;
- and
- a processor in communication with the receiver, the processor configured to:
- receive, via the receiver, a value of the SI field in the header of the MAC PDU, the SI field corresponding to a reordering PDU that includes at least one segment of a MAC enhanced high speed (MAC-ehs) SDU;
- and
- perform reassembly of one or more MAC PDUs by delivering the one or more MAC PDUs to a demultiplexing unit based on the value of the SI field, wherein, on a condition that the SI field has the value of “01” or “11” which indicates that a first reordering SDU of the reordering PDU is a last MAC-ehs SDU segment, the one or more MAC PDUs are delivered based on whether a received MAC-ehs SDU segment and a stored MAC-ehs SDU segment are consecutive, and wherein, on a condition that the SI field has the value of “10” or “11” which indicates that a last reordering SDU of the reordering PDU is a first MAC-ehs SDU segment, the one or more MAC PDUs correspond to each reordering SDU in the reordering PDU except the last reordering SDU.
Dependencies are inferred from the claim text.