One possible explanation is that the R-FCH suffers from smaller interference because of a larger spreading gain (note that spreading gain is defined as a ratio of chip rate
over bit rate).
ADI will demonstrate 3G products, including the SoftFone-LCR chipset supporting the Low Chip Rate
(LCR) TD-SCDMA air interface, and SoftFone-W for W-CDMA handsets.
5G and 3G baseband processing including equalization, chip rate
, symbol rate, and advanced 3G functions like smart antenna and multi user detection," said Roman Robles, manager, Digital Technologies Operation, RF and DSP Infrastructure Systems Division.
The SoftFone-LCR chipset provides all the necessary functions to design a handset based on the emerging 3G Low Chip Rate
(LCR) TD-SCDMA air interface.
NYSE: ADI), a global leader in high-performance semiconductors for signal processing applications, today announced that it will supply 3G cellular chipsets to Holley Communications, of Hangzhou, China, a leading wireless communications company and a wholly-owned subsidiary of Holley Group Co Ltd, for Holley's next-generation handsets based on the emerging TD-SCDMA Low Chip Rate
(LCR) air interface.