3GPP Scout / Reference / 5GSM causes / 5GSM causes #44 and #45

TS 24.5015GSM cause

5GSM causes #44 and #45: Semantic or syntactical errors in packet filter(s)

TS 24.501 V20.1.0Clause 9.11.4.22 valuesChecked 2026-10-15

Covers

TS 24.501 words these values in parallel, so they share this page. Each has its own section with the spec text and a plain explanation.

5GSM cause #44: Semantic errors in packet filter(s)

Clause 9.11.4.2Value 44 (bits 0010 1100)

In plain words

The network or the UE sends this cause when the requested service is rejected because packet filters in the requested QoS rule have semantic errors.

Our summary of the spec text quoted below.

Name in the cause table

Semantic errors in packet filter(s)

Source: 3GPP TS 24.501 V20.1.0, clause 9.11.4.2, table 9.11.4.2.1. © 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TSDSI, TTA, TTC). Official text: 24501-k10.zip in the 3GPP archive.

When it is used

This 5GSM cause is used by the network or the UE to indicate that the requested service was rejected due to one or more semantic errors in packet filter(s) of the QoS rule included in the request.

Source: 3GPP TS 24.501 V20.1.0, clause B.1. © 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TSDSI, TTA, TTC). Official text: 24501-k10.zip in the 3GPP archive.

5GSM cause #45: Syntactical error in packet filter(s)

Clause 9.11.4.2Value 45 (bits 0010 1101)

In plain words

The network or the UE sends this cause when the requested service is rejected because packet filters in the requested QoS rule have syntactical errors.

Our summary of the spec text quoted below.

Name in the cause table

Syntactical error in packet filter(s)

Source: 3GPP TS 24.501 V20.1.0, clause 9.11.4.2, table 9.11.4.2.1. © 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TSDSI, TTA, TTC). Official text: 24501-k10.zip in the 3GPP archive.

When it is used

This 5GSM cause is used by the network or the UE to indicate that the requested service was rejected due to one or more syntactical errors in packet filter(s) of the QoS rule included in the request.

Source: 3GPP TS 24.501 V20.1.0, clause B.1. © 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TSDSI, TTA, TTC). Official text: 24501-k10.zip in the 3GPP archive.

Same causes in EPS (TS 24.301)

TS 24.301 defines the corresponding causes for EPS. Their pages quote the EPS wording.

How this page was made

3GPP Scout built this page from TS 24.501 V20.1.0 as indexed on 2026-10-15. The quotes are copied from the spec, and code checks each one against the stored text and the 3GPP archive file before publishing. The plain-words lines were written by an AI model (GPT-6 Sol) and checked against the quotes by a second AI model from another company (Claude Opus 5.5). The official 3GPP text governs.