ZTE Corporation ZXG-BTS2 Manuale Utente
ZXG10-BTS (V2.9) Technical Manual
76
Confidential and Proprietary Information of ZTE CORPORATION
The BTS power control is optional, which is indicated by the
parameters in the MS POWER CONTROL or CHAN ACTIV message. By
changing the frame header of the power level L1 that is sent to the MS,
changing the frame header of the power level L1 that is sent to the MS,
the TRX tries to control the power control parameter within certain
range according to the message requirement (the CHP module
implements this operation).
When the BTS is executing the MS power control, the BSC can change
the MS power parameters during the connection (caused by a level
range according to the message requirement (the CHP module
implements this operation).
When the BTS is executing the MS power control, the BSC can change
the MS power parameters during the connection (caused by a level
change of the MS power for example).
The MS POWER CONTROL and CHAN ACTIV messages must contain an
The MS POWER CONTROL and CHAN ACTIV messages must contain an
MS-allowed maximum power value.
The procedure of BS power control executed by the BSC is shown in
The procedure of BS power control executed by the BSC is shown in
Figure 54.
F
I G U R E
5 4
B S P
O W E R
C
O N T R O L
MS
LAPDm
FURRM
HPIMa
LAPD
BSC
OAMM
(BS POWER
CONTROL)
DL_DATA_IND (BS POWER
CONTROL)
MPH_RRCmdToC
HP(CHP SET BS
POWER)
This optional procedure can have the BSC set the TRX transmission
power level or the parameter that the TRX uses to control the TRX
power level or the parameter that the TRX uses to control the TRX
transmission power.
The initial parameters are set in the CHAN ACTIV message by the BSC.
The initial parameters are set in the CHAN ACTIV message by the BSC.
If these parameters are to be changed, the BSC will send the BS
POWER CONTROL message to the TRX.
The BTS power control is optional, which is indicated by the
parameters in the BS POWER CONTROL or CHAN ACTIV message. By
changing the transmission power, the TRX tries to control the power
POWER CONTROL message to the TRX.
The BTS power control is optional, which is indicated by the
parameters in the BS POWER CONTROL or CHAN ACTIV message. By
changing the transmission power, the TRX tries to control the power
control parameter within a certain range according to the message
requirement (the CHP module implements this operation).
The maximum power of the TRX is determined by the network design
specifications, but the BSC can specify a smaller maximum power
requirement (the CHP module implements this operation).
The maximum power of the TRX is determined by the network design
specifications, but the BSC can specify a smaller maximum power
value in the BS POWER CONTROL and CHAN ACTIV messages.
3. Physical environment request/acknowledgement
The procedure of physical environment request/acknowledgement is
shown in Figure 55.
shown in Figure 55.