[ List Subjects ][ Main Page ]
[ View Followups ][ Post Followup ]

Date: 03/06/01 at 5:30 AM
Posted by: Borja Perez
E-mail: perez.b@ikusi.es

Hello!

I´m trying to understand how an IS-95 base station works, and I´ve found it hard to get to know where the different logical channels (each one spread with its Walsh code) are added to the same carrier. I wonder if it´s done before QPSK modulation, or else, they are modulated separately before being amplified alltogether. Maybe each logical channel must have its own circuitry up to the antenna connectors (what a waste!).

Thanks in advance for any help.

Borja Pérez

Follow Ups:

  Re: Question about CDMA (IS-95) Mark van der Hoek   Posted at: 05/07/01 (0)

Post a Follow-up:

Name:
E-Mail:
Subject:

Message to Post: