9.1.31 System information type 1

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

This message is sent on the BCCH by the network to all mobile stations within the cell giving information of control of the RACH and of the cell allocation. See table 9.1.31.1. Special requirements for the transmission of this message apply, see 3GPP TS 45.002. This message has a L2 Pseudo Length of 21.

Message type: SYSTEM INFORMATION TYPE 1

Significance: dual

Direction: network to mobile station

Table 9.1.31.1: SYSTEM INFORMATION TYPE 1 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 1 Message Type

Message Type
10.4

M

V

1

Cell Channel Description

Cell Channel Description
10.5.2.1b

M

V

16

RACH Control Parameter

RACH Control Parameters
10.5.2.29

M

V

3

SI 1 Rest Octets

SI 1 Rest Octets
10.5.2.32

M

V

1