Redline Communications Inc. AN100UA 用户手册

™

 

 

 

Doc. #70-00058-01-01 

Proprietary Redline Communications © 2007 

July 13, 2007 

Page 20 of 117

 

Each burst of data transmitted over the wireless interface is padded with redundant 
information, making it more resistant to potential over-the-air errors. The coding rate is 
the ratio of user data to the total data transmitted including the redundant error correction 
data. The base station supports coding rates of 1/2, 2/3, and 3/4. 

The modulation technique specifies how the data is coded within the OFDM carriers. The 
base station supports BPSK, QPSK, 16 Quadarature Amplitude Modulation (QAM), and 
64 QAM modulation. 

Outer Reed-Solomon and inward Convolution Coding (RS-CC) error correction is 
enabled for all traffic rates, with the exception of BPSK 1/2 where only inward 
Convolution Coding is used. These low-level processes can correct bursts of errors in 
received messages and reduce the number of retransmissions. 

When operating two or more collocated base stations, transmitter operations MUST be 
synchronization to minimize inter-sector interference. Each base station has a 
synchronization port located on the front panel to receive synchronization pulses. 

The base station supports point to point (PTP) and point to multipoint (PMP) deployment 
scenarios.