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LG Electronics Inc.
The VX9700 phone has been designed to operate on the latest digital mobile communication technology, Code
Division Multiple Access (CDMA). This CDMA digital technology has greatly enhanced voice clarity and can
provide a variety of advanced features. Currently, CDMA mobile communication technology has been
commercially used in Cellular and Personal Communication Service (PCS). The difference between them is the
operating frequency spectrum. Cellular uses 800MHz and PCS uses 1.9GHz. The VX9700 support GPS Mode, we
usually call it tri-band phone. Also, VX9700 works on Advanced Mobile Phone Service (S-GPS). We call it dual-
mode phone. If one of the Cellular, PCS base stations is located nearby, Call fail rate of triple-mode phone is less
than dual-mode phone or single-mode phone.
The CDMA technology adopts DSSS (Direct Sequence Spread Spectrum). This feature of DSSS enables the phone
to keep communication from being crossed and to use one frequency channel by multiple users in the same specific
area, resulting that it increases the capacity 10 times more compared with that in the analog mode currently used.
Soft/Softer Handoff, Hard Handoff, and Dynamic RF power Control technologies are combined into this phone to
reduce the call being interrupted in a middle of talking over the phone.
Cellular and PCS CDMA network consists of MSO (Mobile Switching Office), BSC (Base Station Controller), BTS
(Base station Transmission System), and MS (Mobile Station). The following table lists some major CDMA
Standards.
CDMA Standard
Designator
Description
Basic air interface
TIA/EIA/IS-95-A/B/C
ANSI J-STD-008
Protocol between MS and BTS for Cellular & AMPS
Protocol between MS and BTS for PCS
Network
TIA/EIA/IS-634
TIA/EIA/IS/651
TIA/EIA/IS-41-C
TIA/EIA/IS-124
MAS-BS
PCSC-RS
Intersystem operations
Nom-signaling data comm.
Service
TIA/EIA/IS-96-B
TIA/EIA/IS-99
TIA/EIA/IS-637
TIA/EIA/IS-657
Speech CODEC
Assign data and fax
Short message service
Packet data
Performance
TIA/EIA/IS-97
TIA/EIA/IS-98
ANSI J-STD-018
ANSI J-STD-019
TIA/EIA/IS-125
Cellular base station
Cellular mobile station
PCS personal station
PCS base station
Speech CODEC
* TSB –74: Protocol between an IS-95A system and ANSI J-STD-008
Z3X-BOX.COM
Содержание VX9700
Страница 26: ... 25 132 LG Electronics Inc VX9700 28 Powering Down Restart Z 3 X B O X C O M ...
Страница 47: ... 46 132 LG Electronics Inc VX9700 Waveform Waveform 4 1 1 e 4 1 1 f F106 pin2 DP1 pin3 Z 3 X B O X C O M ...
Страница 59: ... 58 132 LG Electronics Inc VX9700 Waveform Waveform F106 pin2 DP2 pin2 Z 3 X B O X C O M ...
Страница 93: ... 92 132 LG Electronics Inc VX9700 Test point Test point DSP_CLK C601 DSP_CLK Z 3 X B O X C O M ...
Страница 105: ... 104 132 LG Electronics Inc VX9700 Test point Test point C519 U408 U502 U501 R552 C515 C514 R551 Z 3 X B O X C O M ...
Страница 111: ... 110 132 LG Electronics Inc VX9700 Test point Test point C202 C203 U50 1 C20 05 U3004 L802 L801 Z 3 X B O X C O M ...
Страница 139: ... 2 132 LG Electronics Inc VX9700 2 132 LG Electronics Inc VX9700 Appendix 2 Block and Circuit Diagram Z 3 X B O X C O M ...
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Страница 157: ...SPCY0126601_1 0 RCV MOT VX9700_F_SUB R 8 2 4 C O N 8 1 0 U 8 0 1 U 8 0 2 U 8 0 3 U 8 0 4 U 8 0 5 Z 3 X B O X C O M ...
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Страница 165: ...SW1 CON2 Z 3 X B O X C O M ...
Страница 166: ...CON1 Z 3 X B O X C O M ...
Страница 167: ... 15 132 LG Electronics Inc VX9700 Appendix 3 Part List VX9700 Part List Z 3 X B O X C O M ...
Страница 168: ... 16 132 LG Electronics Inc VX9700 Appendix 4 Components Layout Z 3 X B O X C O M ...
Страница 170: ... 18 132 LG Electronics Inc VX9700 ANT301 BT ANTENNA ACS2450HCCVX97 No BT Communication Z 3 X B O X C O M ...
Страница 173: ... 21 132 LG Electronics Inc VX9700 CAMERA KEY FPCB SW104 CAMERA KEY LS51D 23T Z 3 X B O X C O M ...
Страница 174: ...Z 3 X B O X C O M ...