9.1.50b System information type 10ter $(ASCI)$

3GPP44.018GSM/EDGE Radio Resource Control (RRC) protocolMobile radio interface Layer 3 specificationRelease 17TS

The understanding of messages of this message type is only required for mobile stations supporting VGCS listening and VBS listening. A mobile station not understanding the message shall treat it as unknown message.

Messages of this message type are optionally sent by the network in unacknowledged mode on the SACCH related to the voice group call channel. SYSTEM INFORMATION TYPE 10ter messages contain system information relating to neighbouring cells in which the voice group call is present. When sent on the SACCH of a VGCS downlink, SYSTEM INFORMATION TYPE 10ter messages address all mobile stations receiving that downlink within the cell. There may be different SYSTEM INFORMATION TYPE 10ter messages sent on the same SACCH.

They are not standard layer 3 messages. They shall be transferred using the short header format for SACCH messages sent in unacknowledged mode as specified in 3GPP TS 24.007.

Each SYSTEM INFORMATION TYPE 10ter message specifies, for one cell, the frequencies used in the cell and the location of the NCH channel. Newer information about a cell received in SYSTEM INFORMATION TYPE 10ter messages shall replace older information.

Message type: SYSTEM INFORMATION TYPE 10ter

Significance: dual

Direction: network to mobile station

<SYSTEM INFORMATION TYPE 10ter> ::= < RR short PD : bit > — See 3GPP TS 24.007 < message type : bit(5) > — See 10.4 < short layer 2 header : bit(2) > — See 3GPP TS 44.006 < Cell Channel Description : bit (128) > < SI10ter Rest Octets : bit(32) >; — See 10.5.2.71

<Cell Channel Description>

This field is syntactically and semantically equivalent to octets 2-17 of the Cell Channel Description information element. This information element shall be used to decode the Mobile Allocation IE. See sub-clause 10.5.2.1b.