name: LPP
full_form: LTE Positioning Protocol
context: An LPP session is used between a Location Server and the target device in order to obtain location related measurements or a location estimate or to transfer assistance data. A single LPP session is used to support a single location request (e.g., for a single MT-LR, MO-LR or NI-LR). Multiple LPP sessions can be used between the same endpoints to support multiple different location requests (as required by TS 23.271 [3]). Each LPP session comprises one or more LPP transactions, with each LPP transaction performing a single operation (capability exchange, assistance data transfer, or location information transfer). In E-UTRAN and NG-RAN, the LPP transactions are realized as LPP procedures. The instigator of an LPP session will always instigate the first LPP transaction, but subsequent transactions may be instigated by either end. LPP transactions within a session may occur serially or in parallel. LPP transactions are indicated at the LPP protocol level with a transaction ID in order to
description: The LTE Positioning Protocol (LPP) is a communication protocol used between a Location Server and a target device to obtain location-related measurements, estimates, or transfer assistance data. It enables the exchange of information necessary for determining the location of a device within a cellular network.
explanation: LPP is classified as a Protocol because it defines the rules and procedures for exchanging location-related information between network entities, specifically between a Location Server and a target device. The context highlights its role in facilitating communication for location services, which aligns with the characteristics of a protocol.
section_title: 4.1.2	LPP Sessions and Transactions
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