The invention relates to communication field and discloses a configuring method, a receiving method and a unit of
multicast broadcast service mapping message, which realizes the
macro diversity of MBS, enhances the receiving performance of MBS in the communication
system. In the invention, the message unit of MBS transmits the
physical layer parameter necessary for configuration of MBS mapping message MBS_MAP to all of the MBS operating units in one MBS field; the operating unit of MBS transmits the configured MBS_MAP to the receiving unit of MBS after configuring MBS_MAP based on the received
physical layer parameter; the receiving unit of MBS receives MBS service based on MBS_MAP. The invention realizes the
macro diversity of MBS in the radio network and enhances the receiving performance of MBS. When applied in
WiMAX network, the
management unit of MBS is a MBS agent, the operating unit of MBS is a
base station, the receiving unit of MBS is a terminal.