9.4 GPRS Mobility Management Messages

04.083GPPMobile radio interface Layer 3 specificationRelease 1998TS

9.4.1 Attach request

This message is sent by the MS to the network in order to perform a GPRS or combined GPRS attach. See table 9.4.1/3GPP TS 04.08.

Message type: ATTACH REQUEST

Significance: dual

Direction: MS to network

Table 9.4.1/3GPP TS 04.08: ATTACH REQUEST message content

IEI

Information Element

Type/Reference

Presence

Format

Length

Protocol discriminator

Protocol discriminator

10.2

M

V

1/2

Skip indicator

Skip indicator

10.3.1

M

V

½

Attach request message identity

Message type

10.4

M

V

1

MS network capability

MS network capability

10.5.5.12

M

LV

2-3

Attach type

Attach type

10.5.5.2

M

V

½

GPRS ciphering key sequence number

Ciphering key sequence number

10.5.1.2

M

V

½

DRX parameter

DRX parameter

10.5.5.6

M

V

2

P-TMSI or IMSI

Mobile identity

10.5.1.4

M

LV

6 – 9

Old routing area identification

Routing area identification

10.5.5.15

M

V

6

MS Radio Access capability

MS Radio Access capability

10.5.5.12a

M

LV

6 – 13

19

Old P-TMSI signature

P-TMSI signature

10.5.5.8

O

TV

4

17

Requested READY timer
value

GPRS Timer

10.5.7.3

O

TV

2

9-

TMSI status

TMSI status

10.5.5.4

O

TV

1

9.4.1.1 Old P-TMSI signature

This IE is included if a valid P-TMSI and P-TMSI signature are stored in the MS.

9.4.1.2 Requested READY timer value

This IE may be included if the MS wants to indicate a preferred value for the READY timer.

9.4.1.3 TMSI status

This IE shall be included if the MS performs a combined GPRS attach and no valid TMSI is available.

9.4.2 Attach accept

This message is sent by the network to the MS to indicate that the corresponding attach request has been accepted. See table 9.4.2/3GPP TS 04.08.

Message type: ATTACH ACCEPT

Significance: dual

Direction: network to MS

Table 9.4.2/3GPP TS 04.08: ATTACH ACCEPT message content

IEI

Information Element

Type/Reference

Presence

Format

Length

Protocol discriminator

Protocol discriminator

10.2

M

V

1/2

Skip indicator

Skip indicator

10.3.1

M

V

1/2

Attach accept message identity

Message type

10.4

M

V

1

Attach result

Attach result

10.5.5.1

M

V

1/2

Force to standby

Force to standby

10.5.5.7

M

V

1/2

Periodic RA update timer

GPRS Timer

10.5.7.3

M

V

1

Radio priority for SMS

Radio priority

10.5.7.2

M

V

1/2

Spare half octet

Spare half octet

10.5.1.8

M

V

1/2

Routing area identification

Routing area identification

10.5.5.15

M

V

6

19

P-TMSI signature

P-TMSI signature

10.5.5.8

O

TV

4

17

Negotiated READY timer
value

GPRS Timer

10.5.7.3

O

TV

2

18

Allocated P-TMSI

Mobile identity

10.5.1.4

O

TLV

7

23

MS identity

Mobile identity

10.5.1.4

O

TLV

7-10

25

GMM cause

GMM cause

10.5.5.14

O

TV

2

9.4.2.1 P-TMSI signature

This IE may be included to assign an identity to the MS’s GMM context.

9.4.2.2 Negotiated READY timer

This IE may be included to indicate a value for the READY timer.

9.4.2.3 Allocated P-TMSI

This IE may be included to assign a P-TMSI to an MS in case of a GPRS or combined GPRS attach.

9.4.2.4 MS identity

This IE may be included to assign or unassign a TMSI to an MS in case of a combined GPRS attach.

9.4.2.5 GMM cause

This IE shall be included when IMSI attach for non-GPRS services was not successful during a combined GPRS attach procedure.

9.4.3 Attach complete

This message is sent by the MS to the network if a P-TMSI and/or a TMSI was included within the attach accept message. See table 9.4.3/3GPP TS 04.08.

Message type: ATTACH COMPLETE

Significance: dual

Direction: MS to network

Table 9.4.3/3GPP TS 04.08: ATTACH COMPLETE message content

IEI

Information Element

Type/Reference

Presence

Format

Length

Protocol discriminator

Protocol discriminator

10.2

M

V

1/2

Skip indicator

Skip indicator

10.3.1

M

V

1/2

Attach complete message identity

Message type

10.4

M

V

1

9.4.4 Attach reject

This message is sent by the network to the MS to indicate that the corresponding attach request has been rejected. See table 9.4.4/3GPP TS 04.08.

Message type: ATTACH REJECT

Significance: dual

Direction: network to MS

Table 9.4.4/3GPP TS 04.08: ATTACH REJECT message content

IEI

Information Element

Type/Reference

Presence

Format

Length

Protocol discriminator

Protocol discriminator

10.2

M

V

1/2

Skip indicator

Skip indicator

10.3.1

M

V

1/2

Attach reject message identity

Message type

10.4

M

V

1

GMM cause

GMM cause

10.5.5.14

M

V

1

9.4.5 Detach request

9.4.5.1 Detach request (mobile terminated detach)

This message is sent by the network to request the release of a GMM context. See table 9.4.5.1/3GPP TS 04.08.

Message type: DETACH REQUEST

Significance: dual

Direction: network to MS

Table 9.4.5.1/3GPP TS 04.08: DETACH REQUEST message content

IEI

Information Element

Type/Reference

Presence

Format

Length

Protocol discriminator

Protocol discriminator

10.2

M

V

1/2

Skip indicator

Skip indicator

10.3.1

M

V

1/2

Detach request message identity

Message type

10.4

M

V

1

Detach type

Detach type

10.5.5.5

M

V

1/2

Force to standby

Force to standby

10.5.5.7

M

V

1/2

25

GMM cause

GMM cause

10.5.5.14

O

TV

2

9.4.5.1.1 GMM cause

This IE shall be included in case the detach reason has to be indicated to the MS, e.g. due to a failed IMEI check.

9.4.5.2 Detach request (mobile originating detach)

This message is sent by the MS to request the release of a GMM context. See table 9.4.5.2/3GPP TS 04.08.

Message type: DETACH REQUEST

Significance: dual

Direction: MS to network

Table 9.4.5.2/3GPP TS 04.08: DETACH REQUEST message content

IEI

Information Element

Type/Reference

Presence

Format

Length

Protocol discriminator

Protocol discriminator

10.2

M

V

1/2

Skip indicator

Skip indicator

10.3.1

M

V

1/2

Detach request message identity

Message type

10.4

M

V

1

Detach type

Detach type

10.5.5.5

M

V

1/2

Spare half octet

Spare half octet

10.5.1.8

M

V

1/2

9.4.6 Detach accept

9.4.6.1 Detach accept (mobile terminated detach)

This message is sent by the MS to indicate that the detach procedure has been completed. See table 9.4.6.1/3GPP TS 04.08.

Message type: DETACH ACCEPT

Significance: dual

Direction: MS to network

Table 9.4.6.1/3GPP TS 04.08: Detach ACCEPT message content

IEI

Information Element

Type/Reference

Presence

Format

Length

Protocol discriminator

Protocol discriminator

10.2

M

V

1/2

Skip indicator

Skip indicator

10.3.1

M

V

1/2

Detach accept message identity

Message type

10.4

M

V

1

9.4.6.2 Detach accept (mobile originating detach)

This message is sent by the network to indicate that the detach procedure has been completed. See table 9.4.6.2/3GPP TS 04.08.

Message type: DETACH ACCEPT

Significance: dual

Direction: network to MS

Table 9.4.6.2/3GPP TS 04.08: Detach ACCEPT message content

IEI

Information Element

Type/Reference

Presence

Format

Length

Protocol discriminator

Protocol discriminator

10.2

M

V

1/2

Skip indicator

Skip indicator

10.3.1

M

V

1/2

Detach accept message identity

Message type

10.4

M

V

1

Force to standby

Force to standby

10.5.5.7

M

V

1/2

Spare half octet

Spare half octet

10.5.1.8

M

V

1/2

9.4.7 P-TMSI reallocation command

This message is sent by the network to the MS to reallocate a P-TMSI. See table 9.4.7/3GPP TS 04.08.

Message type: P-TMSI REALLOCATION COMMAND

Significance: dual

Direction: network to MS

Table 9.4.7/3GPP TS 04.08: P-TMSI REALLOCATION COMMAND message content

IEI

Information Element

Type/Reference

Presence

Format

Length

Protocol discriminator

Protocol discriminator

10.2

M

V

1/2

Skip indicator

Skip indicator

10.3.1

M

V

1/2

P-TMSI reallocation command message identity

Message type

10.4

M

V

1

Allocated P-TMSI

Mobile identity

10.5.1.4

M

LV

6

Routing area identification

Routing area identification

10.5.5.15

M

V

6

Force to standby

Force to standby

10.5.5.7

M

V

1/2

Spare half octet

Spare half octet

10.5.1.8

M

V

1/2

19

P-TMSI signature

P-TMSI signature

10.5.5.8

O

TV

4

9.4.7.1 P-TMSI signature

This IE may be included to assign an identity to the MS’s GMM context.

9.4.8 P-TMSI reallocation complete

This message is sent by the MS to the network to indicate that reallocation of a P-TMSI has taken place. See table 9.4.8/3GPP TS 04.08.

Message type: P-TMSI REALLOCATION COMPLETE

Significance: dual

Direction: MS to network

Table 9.4.8/3GPP TS 04.08: P-TMSI REALLOCATION COMPLETE message content

IEI

Information Element

Type/Reference

Presence

Format

Length

Protocol discriminator

Protocol discriminator

10.2

M

V

1/2

Skip indicator

Skip indicator

10.3.1

M

V

1/2

P-TMSI reallocation complete message identity

Message type

10.4

M

V

1

9.4.9 Authentication and ciphering request

This message is sent by the network to the MS to initiate authentication of the MS identity. Additionally, the ciphering mode is set, indicating whether ciphering will be performed or not. See table 9.4.9/3GPP TS 04.08.

Message type: AUTHENTICATION AND CIPHERING REQUEST

Significance: dual

Direction: network to MS

Table 9.4.9/3GPP TS 04.08: AUTHENTICATION AND CIPHERING REQUEST message content

IEI

Information Element

Type/Reference

Presence

Format

Length

Protocol discriminator

Protocol discriminator

10.2

M

V

1/2

Skip indicator

Skip indicator

10.3.1

M

V

1/2

Authentication and ciphering request message identity

Message type

10.4

M

V

1

Ciphering algorithm

Ciphering algorithm

10.5.5.3

M

V

1/2

IMEISV request

IMEISV request

10.5.5.10

M

V

1/2

Force to standby

Force to standby

10.5.5.7

M

V

1/2

A&C reference number

A&C reference number

10.5.5.19

M

V

1/2

21

Authentication parameter RAND

Authentication parameter RAND

10.5.3.1

O

TV

17

8

GPRS ciphering key sequence number

Ciphering key sequence number

10.5.1.2

C

TV

1

9.4.9.1 Authentication Parameter RAND

This IE shall only be included if authentication shall be performed.

9.4.9.2 GPRS ciphering key sequence number

This IE is included if and only if the Authentication parameter RAND is contained in the message.

9.4.10 Authentication and ciphering response

This message is sent by the MS to the network in response to an Authentication and ciphering request message. See table 9.4.10/3GPP TS 04.08.

Message type: AUTHENTICATION AND CIPHERING RESPONSE

Significance: dual

Direction: MS to network

Table 9.4.10/3GPP TS 04.08: AUTHENTICATION AND CIPHERING RESPONSE message content

IEI

Information Element

Type/Reference

Presence

Format

Length

Protocol discriminator

Protocol discriminator

10.2

M

V

1/2

Skip indicator

Skip indicator

10.3.1

M

V

1/2

Authentication and ciphering response message identity

GPRS message type

10.4

M

V

1

A&C reference number

A&C reference number

10.5.5.19

M

V

1/2

Spare half octet

Spare half octet

10.5.1.8

M

V

1/2

22

Authentication parameter SRES

Authentication parameter SRES

10.5.3.2

O

TV

5

23

IMEISV

Mobile identity

10.5.1.4

O

TLV

11

9.4.10.1 Authentication Parameter SRES

This IE is included if authentication was requested within the corresponding authentication and ciphering request message.

9.4.10.2 IMEISV

This IE is included if requested within the corresponding authentication and ciphering request message.

9.4.11 Authentication and ciphering reject

This message is sent by the network to the MS to indicate that authentication has failed (and that the receiving MS shall abort all activities). See table 9.4.11/3GPP TS 04.08.

Message type: AUTHENTICATION AND CIPHERING REJECT

Significance: dual

Direction: network to MS

Table 9.4.11/3GPP TS 04.08: AUTHENTICATION AND CIPHERING REJECT message content

IEI

Information Element

Type/Reference

Presence

Format

Length

Protocol discriminator

Protocol discriminator

10.2

M

V

1/2

Skip indicator

Skip indicator

10.3.1

M

V

1/2

Authentication and ciphering reject message identity

Message type

10.4

M

V

1

9.4.12 Identity request

This message is sent by the network to the MS to request submission of the MS identity according to the specified identity type. See table 9.4.12/3GPP TS 04.08.

Message type: IDENTITY REQUEST

Significance: dual

Direction: network to MS

Table 9.4.12/3GPP TS 04.08: IDENTITY REQUEST message content

IEI

Information Element

Type/Reference

Presence

Format

Length

Protocol discriminator

Protocol discriminator

10.2

M

V

1/2

Skip indicator

Skip indicator

10.3.1

M

V

1/2

Identity request message identity

Message type

10.4

M

V

1

Identity type

Identity type 2

10.5.5.9

M

V

1/2

Force to standby

Force to standby

10.5.5.7

M

V

1/2

9.4.13 Identity response

This message is sent by the MS to the network in response to an identity request message providing the requested identity. See table 9.4.13/3GPP TS 04.08.

Message type: IDENTITY RESPONSE

Significance: dual

Direction: MS to network

Table 9.4.13/3GPP TS 04.08: IDENTITY RESPONSE message content

IEI

Information Element

Type/Reference

Presence

Format

Length

Protocol discriminator

Protocol discriminator

10.2

M

V

1/2

Skip indicator

Skip indicator

10.3.1

M

V

1/2

Identity response message identity

Message type

10.4

M

V

1

Mobile identity

Mobile identity

10.5.1.4

M

LV

4 – 10

9.4.14 Routing area update request

This message is sent by the MS to the network either to request an update of its location file or to request an IMSI attach for non-GPRS services. See table 9.4.14/3GPP TS 04.08.

Message type: ROUTING AREA UPDATE REQUEST

Significance: dual

Direction: MS to network

Table 9.4.14/3GPP TS 04.08: ROUTING AREA UPDATE REQUEST message content

IEI

Information Element

Type/Reference

Presence

Format

Length

Protocol discriminator

Protocol discriminator

10.2

M

V

1/2

Skip indicator

Skip indicator

10.3.1

M

V

1/2

Routing area update request message identity

Message type

10.4

M

V

1

Update type

Update type

10.5.5.18

M

V

1/2

GPRS ciphering key sequence number

Ciphering key sequence number

10.5.1.2

M

V

1/2

Old routing area identification

Routing area identification

10.5.5.15

M

V

6

MS Radio Access capability

MS Radio Access capability

10.5.5.12a

M

LV

6 – 13

19

Old P-TMSI signature

P-TMSI signature

10.5.5.8

O

TV

4

17

Requested READY timer value

GPRS Timer

10.5.7.3

O

TV

2

27

DRX parameter

DRX parameter

10.5.5.6

O

TV

3

9-

TMSI status

TMSI status

10.5.5.4

O

TV

1

31

MS network capability

MS network capability

10.5.5.12

O

TLV

3-4

9.4.14.1 Old P-TMSI signature

This IE is included by the MS if it was received from the network in an ATTACH ACCEPT or ROUTING AREA UPDATE ACCEPT message.

9.4.14.2 Requested READY timer value

This IE may be included if the MS wants to indicate a preferred value for the READY timer.

9.4.14.3 DRX parameter

This IE may be included if the MS wants to indicate new DRX parameters.

9.4.14.4 TMSI status

This IE shall be included if the MS performs a combined routing area update and no valid TMSI is available.

9.4.14.5 MS network capability

This IE shall be included by the MS to indicate it’s capabilities to the network, if the MS supports in addition to GEA/1 at least one of the GPRS Encryption Algorithm GEA/2 to GEA/7.

9.4.15 Routing area update accept

This message is sent by the network to the MS to provide the MS with GPRS mobility management related data in response to a routing area update request message . See table 9.4.15/3GPP TS 04.08.

Message type: routing area update accept

Significance: dual

Direction: network to MS

Table 9.4.15/3GPP TS 04.08: ROUTING AREA UPDATE ACCEPT message content

IEI

Information Element

Type/Reference

Presence

Format

Length

Protocol discriminator

Protocol discriminator

10.2

M

V

1/2

Skip indicator

Skip indicator

10.3.1

M

V

1/2

Routing area update accept message identity

Message type

10.4

M

V

1

Force to standby

Force to standby

10.5.5.7

M

V

1/2

Update result

Update result

10.5.5.17

M

V

1/2

Periodic RA update timer

GPRS Timer

10.5.7.3

M

V

1

Routing area identification

Routing area identification

10.5.5.15

M

V

6

19

P-TMSI signature

P-TMSI signature

10.5.5.8

O

TV

4

18

Allocated P-TMSI

Mobile identity

10.5.1.4

O

TLV

7

23

MS identity

Mobile identity

10.5.1.4

O

TLV

7-10

26

List of Receive N‑PDU Numbers

Receive N‑PDU Number list

10.5.5.11

O

TLV

4 – 19

17

Negotiated READY timer value

GPRS Timer

10.5.7.3

O

TV

2

25

GMM cause

GMM cause

10.5.5.14

O

TV

2

9.4.15.1 P-TMSI signature

This IE may be included to assign an identity to the MS’s GMM context.

9.4.15.2 Allocated P-TMSI

This IE may be included to assign a P-TMSI to an MS in case of a GPRS or combined routing area updating procedure.

9.4.15.3 MS identity

This IE may be included to assign or unassign a TMSI to a MS in case of a combined routing area updating procedure.

9.4.15.4 List of Receive N‑PDU Numbers

This IE shall be included in case of an inter SGSN routing area updating, if there are PDP contexts that have been activated in acknowledged transfer mode.

9.4.15.5 Negotiated READY timer value

This IE may be included to indicate a value for the READY timer.

9.4.15.6 GMM cause

This IE shall be included if IMSI attach was not successful for non-GPRS services during a combined GPRS routing area updating procedure.

9.4.16 Routing area update complete

This message shall be sent by the MS to the network in response to a routing area update accept message if a P-TMSI and/or a TMSI has been assigned and/or if there are established LLC connections. See table 9.4.16/3GPP TS 04.08.

Message type: routing area update complete

Significance: dual

Direction: MS to network

Table 9.4.16/3GPP TS 04.08: ROUTING AREA UPDATE COMPLETE message content

IEI

Information Element

Type/Reference

Presence

Format

Length

Protocol discriminator

Protocol discriminator

10.2

M

V

1/2

Skip indicator

Skip indicator

10.3.1

M

V

1/2

Routing area update complete message identity

Message type

10.4

M

V

1

26

List of Receive N‑PDU Numbers

Receive N‑PDU Number list

10.5.5.11

O

TLV

4 – 19

9.4.16.1 List of Receive N‑PDU Numbers

This IE shall be included if the routing area update accept message contained this IE.

9.4.17 Routing area update reject

This message is sent by the network to the MS in order to reject the routing area update procedure. See table 9.4.17/3GPP TS 04.08.

Message type: routing area update reject

Significance: dual

Direction: network to MS

Table 9.4.17/3GPP TS 04.08: ROUTING AREA UPDATE REJECT message content

IEI

Information Element

Type/Reference

Presence

Format

Length

Protocol discriminator

Protocol discriminator

10.2

M

V

1/2

Skip indicator

Skip indicator

10.3.1

M

V

1/2

Routing area update reject

message identity

Message type

10.4

M

V

1

GMM cause

GMM cause

10.5.5.14

M

V

1

Force to standby

Force to standby

10.5.5.7

M

V

1/2

Spare half octet

Spare half octet

10.5.1.8

M

V

1/2

9.4.18 GMM Status

This message is sent by the MS or by the network at any time to report certain error conditions listed in clause 8. See table 9.4.18/3GPP TS 04.08.

Message type: GMM STATUS

Significance: local

Direction: both

Table 9.4.18/3GPP TS 04.08: GMM STATUS message content

IEI

Information Element

Type/Reference

Presence

Format

Length

Protocol discriminator

Protocol discriminator

10.2

M

V

1/2

Skip indicator

Skip indicator

10.3.1

M

V

1/2

GMM Status message identity

Message type

10.4

M

V

1

GMM cause

GMM cause

10.5.5.14

M

V

1

9.4.19 GMM Information

This message is sent by the network at any time to sent certain information to the MS.
See table 9.4.19/3GPP TS 04.08.

Message type: GMM INFORMATION

Significance: local

Direction: network to MS

Table 9.4.19/3GPP TS 04.08: GMM INFORMATION message content

IEI

Information Element

Type/Reference

Presence

Format

Length

Protocol discriminator

Protocol discriminator

10.2

M

V

1/2

Skip indicator

Skip indicator

10.3.1

M

V

1/2

GMM information message identity

Message type

10.4

M

V

1

43

Full name for network

Network name

10.5.3.5a

O

TLV

3 – ?

45

Short name for network

Network name

10.5.3.5a

O

TLV

3 – ?

46

Network time zone

Time zone

10.5.3.8

O

TV

2

47

Universal time and time zone

Time zone and time

10.5.3.9

O

TV

8

48

LSA Identity

LSA Identifier

10.5.3.11

O

TLV

2-5

9.4.19.1 Full name for network

This IE may be sent by the network. If this IE is sent, the contents of this IE indicate the "full length name of the network" that the network wishes the mobile station to associate with the MCC and MNC contained in the routing area identification of the current cell.

9.4.19.2 Short name for network

This IE may be sent by the network. If this IE is sent, the contents of this IE indicate the "abbreviated name of the network" that the network wishes the mobile station to associate with the MCC and MNC contained in the routing area identification of the cell the MS is currently in.

9.4.19.3 Network time zone

This IE may be sent by the network. The mobile station should assume that this time zone applies to the routing area of the cell the MS is currently in.

9.4.19.4 Universal time and time zone

This IE may be sent by the network. The mobile station should assume that this time zone applies to the routing area the MS is currently in. The mobile station shall not assume that the time information is accurate.

9.4.19.5 LSA Identity

This IE may be sent by the network. The contents of this IE indicate the LSA identity of the serving cell.