Zte ZXG10-OB06, Техническое руководство

Страница: 23 / 124

Chapter 1 - System Architecture
Confidential and Proprietary Information of ZTE CORPORATION 11
T r a n s c e i v e r P r o c e s s U n i t ( T P U )
TPU implements the following functions:
• All functions of baseband data processing of all duplex channels on
TDMA frame.
• Conversion between LAPDm and LAPD protocols.
• Provide GPRS data service.
• Support CS1, CS2, CS3 and CS4 encoding modes.
R a d i o C a r r i e r U n i t ( R C U )
RCU functions are as follows:
• Modulates baseband signals to carrier signals and up-converts
frequency.
• Down-coverts the frequency of received carrier signals.
• Controls the power statically and dynamically in the downlink direction
as required by GSM specifications.
P o w e r A m p l i f i e r U n i t ( P A U )
• PAU amplifies the power of the radio carrier to provide the BS
equipment with sufficient transmission power.
• In GSM900 or EGSM900 bands, ZXG10-OB06 features a transceiver
unit with an output power of 80 W. This unit consists of two modules:
• Super Transceiver Module for GSM/EGSM 900 (STRG): It fulfills the
functions of the TPU and RCU.
• Super Power Amplifier for GSM/EGSM 900 (SPAG): Accomplishes
the functions of the PAU.
Antenna Equipment Module (AEM)
AEM accomplishes functions of duplex and distribution of air signals.
ZXG10-OB06 provides two units:
• Combiner Distribution Unit (CDU)
• Combiner Extension Unit (CEU)
AEM can provide the ZXG10-OB06 (V1.0) with different configurations
through combinations.
C o m b i n e r D i s t r i b u t i o n U n i t ( C D U )
CDU consists of four parts:
• Broadband combiner
• RX/TX duplexer