09.313GPPBase Station System Application Part LCS Extension (BSSAP-LE)Location Services (LCS)Release 1999TS
BSSAP-LE is an extension to BSSAP that contains messages and parameters specific to the support of LCS. The following subsets of BSSAP-LE are defined: DTAP-LE, BSSMAP-LE.
4.1 DTAP-LE Messages
DTAP-LE messages are transfered between an SMLC and a Type A LMU and comprise the following individual messages:
The content, encoding and certain procedures asssociated with DTAP-LE messages are defined in 3GPP TS 04.71.
4.2 BSSMAP-LE Messages
BSSMAP-LE messages are transferred between a BSC, MSC and SMLC and comprise the following individual messages:
BSSMAP-LE Positioning Messages
Perform Location Request
Perform Location Response
Perform Location Abort
BSSMAP-LE LMU Control Messages
LMU Connection Request
LMU Connection Accept
LMU Connection Reject
LMU Connection Release
BSSMAP-LE Information Messages
Connection Oriented Information
BSSMAP-LE General Messages
The content and encoding of BSSMAP-LE messages are defined in this specification.