LG Electronics Inc.
LN510
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Total interference from all the adjacent cell sites is the ratio of interference from all the cell sites versus total
interference from other mobile stations in the same cell site (about 65%). In the case of directional cell site, one cell
normally uses a 120 sector antenna in order to divide the sector into three. In this case, each antenna is used only for
1/3 of mobile stations in the cell site and accordingly, interference is reduced by 1/3 on the average and the capacity
that can be supported by the entire system is increased by three times.
2.7 Soft Capacity
The subscriber capacity of the CDMA system is flexible depending on the relation between the number of users and
service classes. For example, the system operator can increase the number of channels available for use during the
busy hour despite the drop in call quality. This type of function requires 40% of normal call channels in the standby
mode during the handoff, in an effort to avoid call disconnection resulting from the lack of channels.
In addition, in the CDMA system, services and service charges are classified further into different classes so that
more transmit power can be allocated to high class service users for easier call set-up; they can also be given higher
priority of using hand-off function than the general users.
LG511C
Содержание LG511C
Страница 1: ...Internal Use Only Service Manual LG511C Date September 2011 Issue 1 0 ...
Страница 28: ...LG Electronics Inc LN510 27 168 Figure 1 1 Block Diagram of LG511C LG511C ...
Страница 30: ...LG Electronics Inc LN510 29 168 LG511C ...
Страница 50: ...LG Electronics Inc LN510 49 168 Waveform Waveform 4 1 1 c 4 1 1 d U1001 pin2 U1003 pin1 ...
Страница 59: ...LG Electronics Inc LN510 58 168 Fig 4 1 2 c Fig 4 1 2 d U1001 pin2 U1003 pin2 Waveform Waveform ...
Страница 96: ...LG Electronics Inc LN510 95 168 1 ...
Страница 98: ...LG Electronics Inc LN510 97 168 1 2 3 4 5 LG511C ...
Страница 108: ...LG Electronics Inc LN510 107 168 Test points Test points 1 TP1 4 TP4 2 TP2 3 TP3 5 TP5 LG511C ...
Страница 118: ...LG Electronics Inc LN510 117 168 Test point Test point TP 2 TP 2 TP 3 TP 4 TP 5 TP 6 TP 7 X 1601 U 1601 F 1601 TP 1 ...
Страница 134: ...LG Electronics Inc LN510 133 168 Appendix Appendix ...
Страница 136: ...LG Electronics Inc LN510 135 168 Appendix 2 Circuit diagram Appendix 2 Circuit diagram ...
Страница 144: ...LG Electronics Inc LN510 143 168 Appendix 3 BGA Pin Map Appendix 3 BGA Pin Map ...
Страница 145: ...LG Electronics Inc LN510 144 168 Not Used 3 1 U1601 BCM2070_BT 3 1 U1601 BCM2070_BT ...
Страница 146: ...LG Electronics Inc LN510 145 168 3 2 U2001 QSC6075T 3 2 U2001 QSC6075T ...
Страница 147: ...LG Electronics Inc LN510 146 168 3 3 U3001 H8BCS0SI0BAR 46M_MEMORY 3 3 U3001 H8BCS0SI0BAR 46M_MEMORY ...
Страница 148: ...LG Electronics Inc LN510 147 168 All Pin Used 3 4 U4004 TSC2007IYZGR_TOUCH IC 3 4 U4004 TSC2007IYZGR_TOUCH IC ...
Страница 149: ...LG Electronics Inc LN510 148 168 3 5 U4002 LM49151_AUDIO AMP 3 5 U4002 LM49151_AUDIO AMP ...
Страница 150: ...LG Electronics Inc LN510 149 168 Not Used 3 6 U5001 BU1851GUW _ Qwerty IC 3 6 U5001 BU1851GUW _ Qwerty IC ...
Страница 151: ...LG Electronics Inc LN510 150 168 Appendix 4 Component Layout Appendix 4 Component Layout ...
Страница 152: ...LG Electronics Inc LN510 151 168 4 1 Main PCB Component Layout 4 1 Main PCB Component Layout ...
Страница 154: ...LG Electronics Inc LN510 1 168 4 2 KEY PCB Component Layout 4 2 KEY PCB Component Layout 4 Hmsdqm k Trd Nmkx ...
Страница 155: ...LG Electronics Inc LN510 1 168 4 2 KEY PCB Component Layout 4 2 KEY PCB Component Layout 4 Hmsdqm k Trd Nmkx ...
Страница 157: ...LG Electronics Inc LN510 15 168 4 3 F PCB Component Layout 4 3 F PCB Component Layout 4 CON104 Hmsdqm k Trd Nmkx ...
Страница 161: ...LG Electronics Inc LN510 1 Appendix 6 Part List Appendix 6 Part List LG511C ...