DSP2E Voice Server for Wireless Backhaul Applications

The DSP2E module is a high-speed, multifunction digital signal processing module that can perform not only conventional voice compression, but also AAL5-to-AAL2 conversions. These capabilities make it ideal in wireless backhaul applications between base stations and Mobile Switching Centers (MSCs). The module is particularly suited to environments where Lucent’s proprietary HDLC-based Packet Pipe is used in combination with analog voice traffic.

The DSP2E module has eight DSP resources supporting voice, GSM, FEC, and Packet Pipe AAL5-to-AAL2 Wireless Trunking applications. Table 2-2 shows how the DSP2E channels may be configured. The frame size supported is a range of 15 to 256 bytes. The capacity of the DSP2E makes it most appropriate

for applications either at base stations or in small hub sites between base stations and the central office.