
134 Smart Phone and Next-Generation Mobile Computing
Table 3.3 IS-95 Key Parameters.
IS-95 Parameter Description
Multiple access method CDMA with FDM
Frequency range of down links 869–894 MHz
Frequency range of up links 824–849 MHz
Number of channels of the frequency range 20
Channel spacing 1.25 MHz
Number of logical channels in forward link 64 (of which 55 can be traffic logical channels)
Number of logical channels in reverse link 94 (of which up to 62 can be traffic channels)
Number of users per channel 798
Voice traffic bit rate 9600 bps
Encoded traffic bit rate in forward link 19.2 Kbps
Encoded data bit rate in reverse link 28.8 Kbps
Chip sequence size