Ericsson Radio Systems AB PKRC1311004-1 Manual De Usuario

Call Control

The reactivation for the multislot configuration procedure is in
accordance with /GSM 08.58:4.1/.

Encryption Information

Optional

Handover Reference

Rejected

Timing Advance

Rejected

SACCH Information

Optional

If the parameter SACCH Information is present, the contents will be
used for this channel group instead of the information received in the
SACCH FILLING INFORMATION MODIFY procedure described in
Broadcast.

Description

The RBS receives a Channel_Activation message from BSC, in order to
reactivate an already activated channel between MS and RBS. The RBS
reactivates the channel with new parameters. /GSM 08.58:4.6/

During the reactivation, information flows are not interrupted.

If the reactivating of the channel is successful, the RBS answers with
Channel_Activation_Acknowledgement. Otherwise, if the channel for
some reason cannot activate, the answer is a
Channel_Activation_Negative_Acknowledgement.

P003011A

RBS

BSC

CHAN ACTIV ACK

CHAN ACTIV

CHAN ACTIV NCK

Figure 94

Channel reactivation

20.16

Power Information

Purpose

To change output power on the air interface between RBS and MS.

Precondition and Initiation

Transparent transmission in acknowledged mode requires that
multiframe mode has been established.

The function is initiated when a DATA REQUEST message containing
information element Power Information is received by the RBS.

210 (421)

EN/LZT 720 0008

R1A

2001-06-26