學習5G知識，勢必要去閱讀相關的技術標準，而純英文的標準協議對于初學者來說是個門檻，
個人在學習5G標準3GPP TS 29244-g30程序中，也發現google的機器翻譯實在晦澀難懂，所以個人在借助百度翻譯（中國人更懂中文）的同時，人工對每句話進行了校對，
在自己學習的同時，也將翻譯內容分享給給廣大網友，由于個人能力有限，翻譯不到位的地方還請各位網友們指正，
5.20.4 Handling of GBR traffic of a MA PDU session MA PDU會話的GBR流量處理
5.20.4.1 General
Traffic splitting of a GBR traffic is not supported (see clause 5.32.4 of 3GPP TS 23.501 [28]). Besides, switching GBR traffic from one access to another access requires the SMF to send N1/N2 messages to the UE and AN.
不支持GBR流量的流量拆分，此外，將GBR流量從一個接入切換到另一個接入需要SMF向UE和AN發送N1/N2訊息，
DL PDRs corresponding to GBR traffic shall be provisioned with a MAR associated with either a 3GPP Access Forwarding Information IE or a non-3GPP Access Forwarding Information IE, i.e. for the on-going access.
應為GBR流量對應的DL PDR提供與3GPP接入轉發資訊IE或非3GPP接入轉發資訊IE相關的MAR，即用于進行中的接入，
Editor's Note: It is FFS whether DL PDRs corresponding to GBR traffic may be provisioned with a FAR without a MAR.
編者注：由FFS確定是否可以為不帶MAR的FAR提供與GBR流量相對應的DL PDR，
5.20.4.2 Access Availability Reporting 訪問可用性報告
For a MA PDU session using the ATSSS Low Layer (ATSSS-LL) or MPTCP steering functionality, the SMF may request the UPF to report when it cannot send downlink GBR traffic over its on-going access, e.g. based on access availability and unavailability report from the UE, by provisioning an SRR with an Access Availability Control Information IE requesting the UPF to report when an access (3GPP or non-3GPP access) becomes available or unavailable.
對于使用ATSSS Low Layer或MPTCP控制功能的MA PDU會話，SMF可以請求UPF報告何時無法通過其on-going訪問發送下行鏈路GBR流量，例如基于來自UE的訪問可用性和不可用性報告，通過向SRR提供Access Availability Control Information IE，請求UPF報告訪問何時變為可用或不可用，
If so instructed, when detecting a change in an access availability, the UPF shall send an Access Availability Report to the SMF, indicating the access type and whether the access has become available or unavailable.
如有指示，當檢測到訪問可用性的變化時，UPF應向SMF發送Access Availability Report，指出訪問型別以及訪問是否變為可用或不可用，
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