Sagem My X-5, Техническая документация инструкция

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Technical Site Documentation - GSM 900 / 1800 myX-3 & myX-5
Ref. SCT U38 SSC DTS 009 – Index B - December 12 , 2002 Page 2-5
CHAPTER 2 - DESCRIPTION - OPERATION
2.1 REMINDERS ABOUT THE GENERAL CHARACTERISTICS OF GSM, (900 et 1800) AND PCS
(GSM 1900) NETWORKS
Table 1 below gives the characteristics of the radio interface for the GSM 900, GSM 1800 and GSM 1900
systems :
GSM 900 GSM 1800 PCS 1900
Frequency Band (MHz)
890 - 915
925 - 960 1710 - 1785
1805 - 1880 1850 - 1910
1930 - 1990
Number of time intervals per TDMA
frame
8
Width 2 x W simplex (MHz) 2 x 25 2 x 75 2 x 60
Duplex spacing (MHz) 45 95 80
Modulation speed (kbit/s) 271
Speech throughput (kbit/s) 13 (5,6)
Maximum data throughput (kbit/s)
12
Multiple access Frequency and temporal multiplexing / frequency duplexing
Cell radius (km) 0,3 to 30 0,1 to 4 0,1 to 4
SAGEM terminal power (W) 2 1 1
Table 1 : Radio Interface
Table 2 shows powers as a function of the network :
GSM 900 GSM 1800 PCS 1900
Class
number
Maximum
nominal
power (W)
Allowable
interval (W)
Maximum
nominal
power (W)
Allowable
interval (W)
Maximum
nominal
power (W)
Allowable
interval (W)
1 - - 1 [0,63 ; 1,6] 1
2 8 [5,0 ; 12,7] 0,25 [0,16 ; 0,4] 0,25
3 5 [3,2 ; 7,9] 4 [2,5 ; 6,3] 2
4 2 [1,3 ; 3,2]
5 0,8 [0,5 ; 1,3]
Table 2: Terminals power class