ZTE Corporation ZXG-BTS2 Manuale Utente

 
 

Chapter 4 - System Functions 

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9.  BS power control procedure: With this procedure, the BSS controls the 

transmitting power of the activated channel in the TRX. 

10. Connection failure procedure: With this procedure, the BTS gives the 

BSC an indication that an activated dedicated channel has been 
disconnected. 

11. 

Physical environment content request/acknowledgement procedure: 

With this procedure, the BSC obtains the physical parameters of a 
specified channel, which usually occurs before a channel change is 

decided. This procedure is optional. 

12. SACCH fill-in information change procedure: With this procedure, the 

BSC instructs the BTS to change the fill-in information (system 
message) on a specific SACCH. 

Channel Establishment 

1. Channel activation 

The procedure of activating a channel successfully is shown in Figure 

42. 

 

MS 

LAPD

FURRM 

HPIMa

LAPD 

BSC 

OAMM 

(CHAN ACTIV)  

MPH_RRCmdToC

HP (CHP CHAN 

ACTIV) 

(CHAN ACTIV ACK)

DL_DATA_REQ (CHAN ACTIV ACK) 

MPH_CHPIndToRR 

(CHP CHAN ACTIV 

RESPONSE (ACK) 

DL_DATA_IND (CHAN ACTIV) 

Dm_PH_CONN_IND 

(if chan activated) 

MS 

 

 

A channel activation failure is shown in Figure 43.