i need following function blocks in a mobile device for custom
application like body mounted electronics or vehicle mounted
electronics.
1. CDMA type Tx Rx for multipoint to point communication: CDMA codes
will be alloted or preconfigured. CDMA communication channel wil be
preselected and all devices use same channels for Tx and Rx.
2. Bluetooth type master slave type short range comm link.
3. interface to audio (two way mike and speaker)
4. interface to video camera (motion video streaming in one way
simplex)
5.USB
6.Any other digital data /control channel like serial COM or rs485 etc

MN device processor reads from multichannels and alters the data like
adding or removing headers etc and sends data over CDMA type interface
to BS devices. and in return listens to Rx channel and finds its CDMA
co related data and separates into channel data and sends to channels
ike speakers or USB or data/control channel.

BS device processor has many CDMA type reciever blocks for each of MN
device. The presence of MN device is found using output from
corelation filter of CDMA reciever by BS device. BS devcie multiplexes
the recieved CDMA data from all MN devices into ethernet frames or
suitabel over the wire format which is read by application server
using independent NIC at server.

I need to figure out that MSM or other chipsets will suit my
application? Can i develop using Symbian and J2ME? or WinCE? which
hardware and software suits etc?

Can i have WLAN chips without the MAC protocol? since CDMA data rates
are less. On WLAN cards data rates are highdue to OFDM CCK etc they
also use spread spectra to beat noise generation in free band. But the
master slave type programming for MN devices and BS gets stopped by
CSMA/CA MAC even i know that one time one MN will reply to BS's query
etc.

Please help in this.

dhananjay



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