6 BSSMAP messages transferred on the E‑interface

09.083GPPApplication of the Base Station System Application Part (BSSAP) on the E interfaceRelease 1999TS

The following BSSMAP messages, defined in 3GPP TS 08.08 subclause 3.2.1, are transferred on the E‑interface:

ASSIGNMENT REQUEST (MSC‑A ‑> MSC‑I)

Excluded information element: CIRCUIT IDENTITY CODE

ASSIGNMENT COMPLETE (MSC‑I ‑> MSC‑A)

Excluded information element: CIRCUIT POOL, CIRCUIT IDENTITY CODE

ASSIGNMENT FAILURE (MSC‑I ‑> MSC‑A)

Excluded information elements: CIRCUIT POOL, CIRCUIT POOL LIST

* HANDOVER REQUEST (MSC‑A ‑> MSC‑T and MSC‑I ‑> MSC‑A)

Excluded information element: CIRCUIT IDENTITY CODE

* HANDOVER REQUEST ACKNOWLEDGE (MSC‑T ‑> MSC‑A and MSC‑A ‑> MSC‑I)

Excluded information element: CIRCUIT POOL, CIRCUIT IDENTITY CODE

* HANDOVER COMPLETE (MSC‑T ‑> MSC‑A)

* HANDOVER FAILURE (MSC‑T ‑> MSC‑A, MSC‑A ‑> MSC‑I and MSC‑I ‑> MSC‑A)

Excluded information elements: CIRCUIT POOL, CIRCUIT POOL LIST

HANDOVER PERFORMED (MSC‑I ‑> MSC‑A)

* HANDOVER DETECT (MSC‑T ‑> MSC‑A)

CLEAR REQUEST (MSC‑I ‑> MSC‑A and MSC-T -> MSC-A)

SAPI "n" REJECT (MSC‑I ‑> MSC‑A)

CONFUSION (MSC‑T ‑> MSC‑A, MSC‑A ‑> MSC‑T,

MSC‑I ‑> MSC‑A and MSC‑A ‑> MSC‑I)

# MSC INVOKE TRACE (MSC‑A ‑> MSC‑I and MSC-A -> MSC-T)

# BSS INVOKE TRACE (MSC‑I ‑> MSC‑A and MSC‑A ‑> MSC‑T)

CIPHER MODE COMMAND (MSC‑A ‑> MSC‑I)

CIPHER MODE COMPLETE (MSC‑I ‑> MSC‑A)

CIPHER MODE REJECT (MSC‑I ‑> MSC‑A)

** QUEUING INDICATION (MSC‑T ‑> MSC‑A, MSC‑I ‑> MSC‑A,

and MSC‑A ‑> MSC‑I)

CLASSMARK UPDATE (MSC‑I ‑> MSC‑A and MSC‑A ‑> MSC‑T)

CLASSMARK REQUEST (MSC‑A ‑> MSC‑I)

CONNECTION ORIENTED INFORMATION (MSC-I -> MSC-A, MSC-A->MSC-I)

LSA INFORMATION (MSC-A -> MSC-I)

PERFORM LOCATION REQUEST (MSC-I->MSC-A, MSC-A -> MSC-I)

PERFORM LOCATION ABORT (MSC-I->MSC-A, MSC-A -> MSC-I)

PERFORM LOCATION RESPONSE (MSC-I -> MSC-A, MSC-A->MSC-I)

COMMON ID (MSC-A -> MSC-I)

All other BSSMAP messages shall be considered as non‑existent on the E‑interface.

NOTE: Segmentation procedures for LCS CONNECTION ORIENTED INFORMATION message in 3GPP TS 08.08 apply to the corresponding message on the E-interface.

Some of the messages above are qualified by *, ** or #. This signifies whether the message, when sent on the E‑interface, is considered as:

– handover related message (*);

– handover related when sent as a response to HANDOVER REQUEST (**); or

– trace related message (#).