name: PER
full_form: Packet Error Rate
context: The PDU Set Error Rate (PSER) defines an upper bound for the rate of PDU Sets that have been processed by the sender of a link layer protocol (e.g. RLC in RAN of a 3GPP access) but that are not successfully delivered by the corresponding receiver to the upper layer (e.g. PDCP in RAN of a 3GPP access). Thus, the PSER defines an upper bound for a rate of non-congestion related PDU Set losses. The purpose of the PSER is to allow for appropriate link layer protocol configurations (e.g. RLC and HARQ in RAN of a 3GPP access). NOTE 1: In this Release, a PDU Set is considered as successfully delivered only when all PDUs of a PDU Set are delivered successfully. NOTE 2: How RAN enforces PSER is up to RAN implementation. A QoS Flow is associated with at most one PDU Set Error Rate value per direction. PSER is an optional parameter. If the PSER is available, the PSER supersedes the PER.
description: The Packet Error Rate (PER) is a measure of the rate at which packets are not successfully delivered by the receiver to the upper layer due to non-congestion related losses. It serves as an optional parameter that can supersede PER in certain configurations, particularly in relation to PDU Set Error Rate (PSER), and is used for link layer protocol configurations such as RLC and HARQ in 3GPP accesses.
explanation: PER is classified as a Parameter because it represents a specific value or setting within the network that influences how packets are handled, especially in relation to error rates and successful delivery. This aligns with its mention in the context of PDU Set Error Rate (PSER) and link layer protocol configurations.
section_title: 5.7.7.3 PDU Set Error Rate
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