A method of realizing data segmentation cascade and recombination and a transmitter

摘要

The present invention discloses a method and sender for data segmentation and concatenation. The method includes: first deciding whether the type of Service Data Unit (SDU) information to be encapsulated in a Protocol Data Unit (PDU) is identical consistent with the type of SDU information already encapsulated in the PDU, if consistent, encapsulating the SDU information to be encapsulated in the PDU for transmission; if not consistent, encapsulating the SDU information to be encapsulated in a second PDU for transmission. A method for data reassembly and a transmitter are disclosed as well. By the method and sender for data segmentation and concatenationprovided by the present invention, it is possible to avoid unnecessary duplicated reassembly, preventing the receiver from reassembling the data that may lead to errors and improving the reliability of information transmission.