Abstract
A kind of method and device used for medium access control (MAC) service data unit (SDU) segment the method and the device by connection received from a logical channel of the MAC SDU to the enhanced MAC-e/es sub-layer creating enhanced MAC-es PDU. The enhanced transport format combination (E-TFC) selection entity is connected to the MAC SDU is controlled to enhanced MAC-es PDU. When receiving a MACSDU is too large and is not suitable for the selected enhanced MAC-es PDU valid load entity segments the MAC SDU according to the MAC SDU segment fills the selected enhanced MAC-es PDU can be used for the remaining effective load. After that enhanced MAC-es PDU to the transmission sequence number (TSN) and the enhanced MAC-es PDU to create a single enhanced MAC and other enhanced MAC-es PDU-e PDU wherein the enhanced MAC-e PDU in the next transmission time interval TTI on the E-DCH. HARQ entity to the enhanced MAC-e PDU and if necessary of a further error occurs in transmission of the enhanced MAC-e PDU is retransmitted.
A method and apparatus for segmenting medium access control (MAC) service data units (SDUs) creates enhanced MAC-es PDUs in the enhanced MAC-e/es sub-layer by concatenating MAC SDUs received from the logical channels. An enhanced transport format combination (E-TFC) selection entity controls the concatenation of MAC SDUs into enhanced MAC-es PDUs. When a MAC SDU is received that is too large to fit into a selected enhanced MAC-es PDU payload a segmentation entity segments the MAC SDU such that the MAC SDU segment fills the remaining payload available in the selected enhanced MAC-es PDU. The enhanced MAC-es PDU is then assigned a transmission sequence number (TSN) and multiplexed with other enhanced MAC-es PDUs to create a single enhanced MAC-e PDU that is transmitted on the E-DCH in the next transmission time interval (TTI). A HARQ entity stores and if necessary retransmits the enhanced MAC-e PDU when a transmission error occurs.
A method and apparatus for segmenting medium access control (MAC) service data units (SDUs) creates enhanced MAC-es PDUs in the enhanced MAC-e/es sub-layer by concatenating MAC SDUs received from the logical channels. An enhanced transport format combination (E-TFC) selection entity controls the concatenation of MAC SDUs into enhanced MAC-es PDUs. When a MAC SDU is received that is too large to fit into a selected enhanced MAC-es PDU payload a segmentation entity segments the MAC SDU such that the MAC SDU segment fills the remaining payload available in the selected enhanced MAC-es PDU. The enhanced MAC-es PDU is then assigned a transmission sequence number (TSN) and multiplexed with other enhanced MAC-es PDUs to create a single enhanced MAC-e PDU that is transmitted on the E-DCH in the next transmission time interval (TTI). A HARQ entity stores and if necessary retransmits the enhanced MAC-e PDU when a transmission error occurs.
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