Communication device, terminal, base station and program for adaptively change the link layer frame length

摘要

PROBLEM TO BE SOLVED: To provide a packet communication apparatus or the like capable of minimizing a packet loss rate independently of a radio wave propagation environment in a mobile network.;SOLUTION: The communication apparatus includes: a table information storage section 104 for storing table information specifying a link layer fame length in cross reference with a mobile speed and the number of multi-paths; a frame length searching section 103 for searching the link layer frame length corresponding to the detected mobile speed and the number of multi-paths and adaptively revising the link layer frame length. The table information specifies the link layer frame length for minimizing a packet error rate by each combination of the mobile speed and the number of multi-paths. Further, the table information specifies the link layer frame length shorter as the mobile speed is higher and the link layer frame length longer as the number of multi-paths is larger.;COPYRIGHT: (C)2007,JPO&INPIT