Channelization Summary
{"Image DocumentName": "Channelization Summary", "Image ImageDescription": "Advanced Concepts of CDMA. Channelization Summary. Function. Forward Link. {Base to Mobile} Reverse Link. {Mobile to Base} 9.6 kbps Convolutional Encoder. 1/2 Rate. {9600 in out} 1/3 Rate. {9600 in out} 14.4 kbps Convolutional Encoder. 3/4 Rate. {14400 in out} 1/2 Rate. {14400 in out} Walsh Coding. Channelization. 64-ary. Modulation. Now that we have looked at both the forward and reverse links in detail, it is useful to summarize the key differences between them. The forward link uses a one half rate convolutional encoder, Walsh codes for channelization, long code voice privacy scrambling, and short code time offsets for base station identification. The reverse link uses a one third rate convolutional encoder, 64-ary Walsh code modulation for data spreading, long codes for channelization, and short code modulation for transmission format simplification. Next, a review of the key strengths and weakness of the forward and reverse links will help to highlight the design trade-offs made in the EIA/TIA-95-B cellular system. Notes: ________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________. Long Code. Spreading. Voice Privacy. Channelization. Short Code Spreading. Base Station. Identification. Aid Base Station Searching. Copyright \u00a9 Hewlett-Packard Company 1999.", "Image XResolution": "37", "Image YResolution": "37", "Image ResolutionUnit": "Pixels/Centimeter", "Image Software": "SlidePlayer", "Image YCbCrPositioning": "Centered"}