| 摘要 |
PURPOSE:To avoid a state of increase of traffic uselessly by implementing reception processing when it is discriminated that optionally received information is information communicated in its own group. CONSTITUTION:When radio terminal equipments 1b, 1e receive a packet, the packet is discriminated to be valid through the collation of a zone identifier, and other packet is sent to a personal computer 2b and a bridge 4a via digital interfaces 3b, 3e respectively. Even when radio terminal equipments 1c, 1d, 1f receive the packet, the packet is discriminated to be invalid through the collation of a zone identifier and the radio terminal equipments 1c, 1e do not send other packet to the personal computer 2b and the bridge 4a. Moreover, the bridge 4a uses a bridge function to discriminate a DA of the precedence packet is that for an information terminal equipment in its own zone and no packet is sent to a wired LAN (local area network) 5. |
