| 主权项 |
1. A method for transmitting a Hybrid Automatic Repeat Request (HARQ) failure indication, applied to a process of transmitting data flows of a primary carrier and a secondary carrier on independent transmission bearers of a Iub interface/Iur interface respectively, comprising:
receiving an Enhanced Dedicated Transport Channel (E-DCH) payload from the primary carrier and failing to decode it by a Node B; determining by the Node B whether a condition for transmitting an HARQ failure indication is met, if it is met, setting by the Node B an HARQ failure indication data frame on the primary carrier; and binding by the Node B the HARQ failure indication data frame with a transmission bearer corresponding to the primary carrier and transmitting by the Node B the HARQ failure indication data frame to a Service Radio Network Controller (SRNC) on the transmission bearer corresponding to the primary carrier; wherein the setting an HARQ failure indication data frame on the primary carrier comprises: setting a Connection Frame Number CFN domain and a subframe number domain as a CFN and a subframe number when detecting an HARQ failure indication; if the data frame is of type 1, setting a number domain of Medium Access Control-enhanced sublayer Protocol Data Units (MAC-es PDUs) as 0, setting no IEs of DDI and N in the data frame head, for the alignment of 8 bits, using the last 4 padding bits of the IEs of the MAC-es PDU, and setting no MAC-es PDU in the payload part of the data frame related to the HARQ failure; if the data frame is of type 2, setting a number domain of Medium Access Control-improved sublayer Protocol Data Units (MAC-is PDUs) as 0, setting no IEs of an MAC-is protocol data descriptor in the data frame head, setting no MAC-is PDU in the payload part of the data frame related to the HARQ failure; and setting an HARQ retransmission number domain as the number of HARQ retransmissions having happened when an HARQ failure indication is detected. |
