Zte ZXG10 OB06, Техническое руководство

Страница: 86 / 117

ZXG10 OB06 ZTE Integrated Outdoor GSM Base Station Technical Manual
72 Confidential and Proprietary Information of ZTE CORPORATION
When the coverage distance is greater than 35 km, that is, when the air
time delay is greater than 63, the time of arrival of a signal at the BTS will
span two time slots, as shown in Figure 63, so a dedicated control channel
and a service channel can be two physical channels, namely, two
consecutive time slots.
F
I G U R E
6 3 T
I M E
D
E L A Y
R
E L A T I O N S H I P
0 0 1 1
General air delay-63
0 6 7 1 2
2 3 4 5 6 7
3 4 5 0 7 6 5
OB06
transmitting
63-bit transmitting in advance
MS
transmitting
When the BTS uses two timeslots to process the data of one subscriber,
the second timeslot is called the extended channel, a shown in Figure 64.
F
I G U R E
6 4 O B 0 6 S
I G N A L
P
R O C E S S I N G
2 3 4 5 6 7 2
0 0 1 1
Frame
Extended
channels