name: SLP
full_form: SUPL Location Platform
context: Since SUPL by definition is carried over the user plane, it is not applicable to operations terminating at the NG-RAN. SUPL operations must take place in combination with control-plane procedures over NRPPa. This situation could arise in the case of UE-assisted OTDOA, for example, in which the SLP needs to provide the UE (in a SUPL session) with assistance data supplied by the NG-RAN. This clause uses a UE-assisted OTDOA positioning operation as an example. Although the positioning server in this operation is the SLP, the existence of an interface to the LMF means that the SLP can communicate with the LMF via the SPC. In particular, this means that assistance data that was delivered to the LMF via NRPPa can be transferred over to the SLP for delivery to the UE via LPP over SUPL. There are several ways to realise this general behaviour. In the simplest case, the LMF could be supplied with the necessary assistance data in advance, so that it can be supplied to the SLP without any actual
description: The SUPL Location Platform (SLP) is a network function responsible for providing location-based services and assistance data to user equipment (UE) in a 5G network. It interacts with other network functions, such as the Location Management Function (LMF), to deliver location information and assistance data over the SUPL protocol.
explanation: The context describes SLP's role in delivering location-based services and assistance data to UE, interacting with LMF, and using SUPL protocol. This indicates that SLP is a Network Function responsible for managing location information and providing it to UE.
section_title: A.4Procedures combining C-plane and U-plane operations
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