| 摘要 |
<p>A telecommunication bridge system uses synchronized arbitration in a portion of a frame (56) of a Radio Frequency (RF) subsystem (14) and is transparent to Ethernet layer protocols and Ethernet-type packets in order to increase bandwidth utilization and effectively extend Ethernet networks (21) to metropolitan-area-wide application. The telecommunication bridge system has an enhanced Ethernet network interface subsystem (114) coupled to a conventional Ethernet medium (21) and a control subsystem (114) including an RF modem (46, 48), in turn coupled to a frame synchronized RF medium (50) in a metropolitan-sized network. On one side the control subsystem emulates all Ethernet layer protocols and on the other side conducts a prioritized arbitration scheme during only a portion of a time division multiplexed frame (64), the remainder of the frame (62) for carrying a payload of unmodified packets to other bridges. Included in the controller subsystem (14) is a two-way Manchester/NRZ code converter (26), its own intelligence and packet buffering using a microprocessor (34) and random access memory (38).</p> |
