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5G网络中QoS强制规则
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发表于 2021-12-03 10:48:32  只看楼主 

        5G网络中QoS强制规则如下表描述,其QoS 强制规则 (QER)定义了应如何根据比特率限制和出于 QoS 目的的数据包标记来处理数据包。 引用相同 QER 的所有数据包检测规则共享相同的 QoS 资源,例如 MFBR。


Attribute

Description

Comment

N4 Session ID

Identifies the N4 session associated to this   QER


Rule ID

Unique identifier to identify this information.


QoS Enforcement Rule correlation ID   (NOTE 1)

An identity allowing the UP function to   correlate multiple Sessions for the same UE and APN.

Is used to correlate QoS Enforcement Rules for   APN-AMBR enforcement.

Gate status UL/DL

Instructs the UP function to let the flow pass   or to block the flow.

Values are: open, close, close after   measurement report (for termination action "discard").

Maximum bitrate

The uplink/downlink maximum bitrate to be   enforced for the packets.

This field may e.g. contain any one of:

-      APN-AMBR (for a QER that is referenced   by all relevant Packet Detection Rules of all PDN Connections to an APN)   (NOTE 1).

-      Session-AMBR (for a QER that is   referenced by all relevant Packet Detection Rules of the PDU Session)

-      QoS Flow MBR (for a QER that is   referenced by all Packet Detection Rules of a QoS Flow)

-      SDF MBR (for a QER that is referenced by   the uplink/downlink Packet Detection Rule of a SDF)

-      Bearer MBR (for a QER that is referenced   by all relevant Packet Detection Rules of a bearer) (NOTE 1).

Guaranteed bitrate

The uplink/downlink guaranteed bitrate   authorized for the packets.

This field contains:

-      QoS Flow GBR (for a QER that is   referenced by all Packet Detection Rules of a QoS Flow)

-      Bearer GBR (for a QER that is referenced   by all relevant Packet Detection Rules of a bearer) (NOTE 1).

Averaging window

The time duration over which the Maximum and   Guaranteed bitrate shall be calculated.

This is for counting the packets received   during the time duration.

Down-link flow level marking

Flow level packet marking in the downlink.

For UPF, this is for controlling the setting of   the RQI in the encapsulation header as described in clause 5.7.5.3.

QoS Flow ID

QoS Flow ID to be inserted by the UPF.

The UPF inserts the QFI value in the tunnel   header of outgoing packets.

Paging Policy Indicator

Indicates the PPI value the UPF is required to   insert in outgoing packets (see clause 5.4.3.2).

PPI applies only for DL traffic. The UPF   inserts the PPI in the outer header of outgoing PDU.

Packet rate (NOTE 1)

Number of packets per time interval to be   enforced.

This field contains any one of:

-      downlink packet rate for Serving PLMN   Rate Control (the QER is referenced by all PDRs of the UE belonging to PDN   connections using CIoT EPS Optimisations as described in   TS 23.401 [26]).

-      uplink/downlink packet rate for APN Rate   Control (the QER is referenced by all PDRs of the UE belonging to PDN   connections to the same APN using CIoT EPS Optimisations as described in   TS 23.401 [26]).

NOTE 1:   This   parameter is only used for interworking with EPC.

资料来源:TS23.501 5.8.2.11

整理:kangguoying20211203


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