Stan, 2 or 3 years isn't going to suit Ericsson! Meanwhile here are some patents, hijacked from CDMA forum., Ericsson have:
USPTO web page patents.cnidr.org on "Ericsson and cdma" = U.S. patents assigned to Ericsson in the CDMA field. Just for info. There is obviously a bit of activity by Ericsson.
5,584,057 Use of diversity transmission to relax adjacent channel requirements in mobile telephone systems 5,574,982 Method and apparatus for regulating a power level of a transmitted radio signal 5,572,552 Method and system for demodulation of downlink CDMA signals 5,566,168 TDMA/FDMA/CDMA hybrid radio access methods 5,550,809 Multiple access coding using bent sequences for mobile radio communications 5,544,156 Direct sequence CDMA coherent uplink detector 5,539,730 TDMA/FDMA/CDMA hybrid radio access methods 5,533,014 Non-continuous transmission for seamless handover in DS-CDMA systems 5,506,861 System and method for joint demodulation of CDMA signals 5,404,376 Navigation assistance for call handling in mobile telephone systems 5,377,183 Calling channel in CDMA communications system 5,357,454 Fast walsh transform processor 5,353,352 Multiple access coding for radio communications 5,351,016 Adaptively self-correcting modulation system and method 5,341,397 CDMA frequency allocation 5,305,349 Quantized coherent rake receiver 5,295,153 CDMA frequency allocation 5,295,152 TDMA for mobile access in a CDMA system 5,239,557 Discountinuous CDMA reception 5,237,586 Rake receiver with selective ray combining 5,218,619 CDMA subtractive demodulation 5,187,675 Maximum search circuit 5,151,919 CDMA subtractive demodulation
Okay, I know much of it sounds like Greek, but it should be interesting.
Maurice |