9.1.38 System information type 5bis
3GPP44.018GSM/EDGE Radio Resource Control (RRC) protocolMobile radio interface Layer 3 specificationRelease 17TS
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 |
M |
V |
1 |
|
|
RR management Protocol Discriminator |
Protocol Discriminator |
M |
V |
1/2 |
|
|
Skip Indicator |
Skip Indicator |
M |
V |
1/2 |
|
|
System Information Type 5 bis Message Type |
Message Type |
M |
V |
1 |
|
|
Extension of the BCCH Frequency List Description |
Neighbour Cell Description |
M |
V |
16 |