LMDS can be implemented to provide similar access bandwidths and two-way capability without digging up streets and yards. For details of how an LMDS network operates, go to the LMDS System Overview page. The functional block diagram of the baseband signal processing carried out in Digital Base-station and Network Terminator is shown in Figure 2. Baseband Transmitter Block Diagram Click on the blue blocks in the diagram for more information. The data is piped to the baseband signal processing chain, which carries out the necessary signal processing to make it robust against noise from the air channel.
Reciprocal processing is carried out on the receiver side to recover data from the received signal.
Altera offers a comprehensive core portfolio that includes all the key functions required in a baseband signal processing chain, as well as telecom cores for network interfaces. With Altera's programmable APEX II architecture, dedicated hardware functionality can be implemented to achieve the desired speeds. Also, with multi-million gate APEX II devices, hardware functionality can be replicated to support multiple channels. Comprehensive Core Solution Altera provides comprehensive solutions for baseband signal processing as well as for network interfaces. Mercury devices can recover 8 or 18 clock channels at OC-12 speeds.