9.1.38 System information type 5bis

3GPP44.018GSM/EDGE Radio Resource Control (RRC) protocolMobile radio interface Layer 3 specificationRelease 16TS

This message is sent optionally on the SACCH by the network to mobile stations within the cell giving information on the extension of the BCCH allocation in the neighbour cells. See table 9.1.38.1.

A GSM 900 mobile station which only supports the primary GSM band P-GSM 900 (cf. 3GPP TS 45.005) may ignore this message, see sub-clause 3.2.2.1.

When received (and not ignored) this information must be used as the list of neighbouring cells to be reported on. Any change in the neighbour cell description must overwrite any old data held by the mobile station. The mobile station must, with the exception stated above, analyse all correctly received system information type 5bis messages. This message has a L2 Pseudo Length of 18.

Message type: SYSTEM INFORMATION TYPE 5bis

Significance: dual

Direction: network to mobile station

Table 9.1.38.1: SYSTEM INFORMATION TYPE 5bis message content

IEI

Information element

Type / Reference

Presence

Format

length

L2 pseudo length

L2 pseudo length
10.5.2.19

M

V

1

RR management Protocol Discriminator

Protocol Discriminator
10.2

M

V

1/2

Skip Indicator

Skip Indicator
10.3.1

M

V

1/2

System Information Type 5 bis Message Type

Message Type
10.4

M

V

1

Extension of the BCCH Frequency List Description

Neighbour Cell Description
10.5.2.22

M

V

16