JPWO2020242564A5 - - Google Patents

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JPWO2020242564A5
JPWO2020242564A5 JP2021568132A JP2021568132A JPWO2020242564A5 JP WO2020242564 A5 JPWO2020242564 A5 JP WO2020242564A5 JP 2021568132 A JP2021568132 A JP 2021568132A JP 2021568132 A JP2021568132 A JP 2021568132A JP WO2020242564 A5 JPWO2020242564 A5 JP WO2020242564A5
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signaling gateway
signaling
call
mme
selection
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JP2022533349A (en
JP7510957B2 (en
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Priority claimed from US16/422,908 external-priority patent/US11012931B2/en
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緊急コールのための強化されたシグナリングゲートウェイステータス検出および選択のための方法であって、前記方法は、
少なくとも１つのプロセッサを含むモビリティ管理エンティティ（ＭＭＥ）において、
エコー要求タイムアウトとコールセットアップシグナリングタイムアウトとの組合せを使用して、シグナリングゲートウェイが危険な状態にあることを検出するステップと、
前記ＭＭＥによって維持されるシグナリングゲートウェイステータスデータベースにおいて、前記シグナリングゲートウェイを危険なものとしてマークするステップと、
危険なものとしてマークされたシグナリングゲートウェイを除外する態様で、緊急コールのためのシグナリングゲートウェイ選択を行なうステップと、
前記シグナリングゲートウェイ選択によって選択されたシグナリングゲートウェイに前記緊急コールをルーティングするステップとを含む、方法。 A method for enhanced signaling gateway status detection and selection for emergency calls, said method comprising:
In a Mobility Management Entity (MME) comprising at least one processor,
detecting that the signaling gateway is in danger using a combination of an echo request timeout and a call setup signaling timeout;
marking the signaling gateway as unsafe in a signaling gateway status database maintained by the MME;
performing signaling gateway selection for emergency calls in a manner that excludes signaling gateways marked as unsafe;
and routing said emergency call to a signaling gateway selected by said signaling gateway selection. 前記シグナリングゲートウェイが危険な状態にあることを検出するステップは、前記ＭＭＥから前記シグナリングゲートウェイへの１つのエコー要求タイムアウトと、前記ＭＭＥから前記シグナリングゲートウェイへの２つのセッション生成要求タイムアウトとに応答して、前記シグナリングゲートウェイが危険な状態にあることを検出するステップを含む、請求項１に記載の方法。 Detecting that the signaling gateway is at risk is in response to one echo request timeout from the MME to the signaling gateway and two create session request timeouts from the MME to the signaling gateway. , detecting that the signaling gateway is in a state of danger. 前記エコー要求タイムアウトは、前記２つのセッション生成要求タイムアウトに先立って生じる、請求項２に記載の方法。 3. The method of claim 2, wherein the echo request timeout occurs prior to the two session creation request timeouts. 前記エコー要求タイムアウトは、前記２つのセッション生成要求タイムアウトのうちの一方の後に生じる、請求項２に記載の方法。 3. The method of claim 2, wherein the echo request timeout occurs after one of the two session creation request timeouts. 前記エコー要求タイムアウトが生じるエコー要求メッセージの送信は、前記２つのセッション生成要求タイムアウトのうちの第２のセッション生成要求タイムアウトの検出によってトリガされる、請求項２に記載の方法。 3. The method of claim 2, wherein sending an echo request message resulting in the echo request timeout is triggered by detection of a second of the two session creation request timeouts. 前記２つのセッション生成要求タイムアウトは、同じコールのためのものである、請求項２～５のいずれか１項に記載の方法。 A method according to any one of claims 2 to 5, wherein said two create session request timeouts are for the same call. 前記２つのセッション生成要求タイムアウトは、異なるコールのためのものである、請求項２～５のいずれか１項に記載の方法。 A method according to any one of claims 2 to 5, wherein said two create session request timeouts are for different calls. 前記シグナリングゲートウェイ選択を行なうステップは、進化型ノードＢ（ｅＮｏｄｅ Ｂ）からの初期アタッチメッセージに応答して前記シグナリングゲートウェイ選択を行なうステップを含む、請求項１～７のいずれか１項に記載の方法。 The method of any one of claims 1 to 7 , wherein performing the signaling gateway selection comprises performing the signaling gateway selection in response to an initial attach message from an evolved Node B (eNode B). . 前記シグナリングゲートウェイ選択を行なうステップは、コールのセットアップ中に前記コールに割り当てられたシグナリングゲートウェイが危険であると判断された前記コールのために、新たなシグナリングゲートウェイを選択するステップを含む、請求項１～８のいずれか１項に記載の方法。 2. The step of performing the signaling gateway selection comprises selecting a new signaling gateway for the call for which the signaling gateway assigned to the call was determined to be unsafe during call setup. 9. The method according to any one of 1 to 8 . 前記シグナリングゲートウェイ選択を行なうステップは、コールに現在割り当てられ、危険なものとしてマークされたシグナリングゲートウェイ上にデフォルトベアラが存在する前記コールのために、新たなシグナリングゲートウェイを選択するステップを含む、請求項１～９のいずれか１項に記載の方法。 3. The step of performing signaling gateway selection comprises selecting a new signaling gateway for the call for which there is a default bearer on a signaling gateway currently assigned to the call and marked as unsafe. 10. The method according to any one of 1 to 9 . 緊急コールのための強化されたシグナリングゲートウェイステータス検出および選択のためのシステムであって、前記システムは、
少なくとも１つのプロセッサを含むモビリティ管理エンティティ（ＭＭＥ）と、
前記ＭＭＥに位置し、前記ＭＭＥによってアクセス可能なシグナリングゲートウェイについてのステータス情報を含む、シグナリングゲートウェイステータスデータベースと、
シグナリングゲートウェイステータス検出器兼緊急コールルータとを含み、前記シグナリングゲートウェイステータス検出器兼緊急コールルータは、請求項１～１０のいずれか１項に記載の方法を実行するように構成される、システム。 A system for enhanced signaling gateway status detection and selection for emergency calls, said system comprising:
a Mobility Management Entity (MME) including at least one processor;
a signaling gateway status database located in said MME and containing status information about signaling gateways accessible by said MME;
A system comprising a Signaling Gateway Status Detector and Emergency Call Router, said Signaling Gateway Status Detector and Emergency Call Router being adapted to perform the method of any one of claims 1-10 . コンピュータの前記プロセッサによって実行されると請求項１～１０のいずれか１項に記載の前記ステップを行なうように前記コンピュータを制御する、プログラム。 A program which, when executed by the processor of a computer, controls the computer to perform the steps of any one of claims 1-10 .
JP2021568132A 2019-05-24 2020-03-24 Method, system, and computer-readable medium for enhanced signaling gateway (SGW) status detection and selection for emergency calls - Patents.com Active JP7510957B2 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US16/422,908 2019-05-24
US16/422,908 US11012931B2 (en) 2019-05-24 2019-05-24 Methods, systems, and computer readable media for enhanced signaling gateway (SGW) status detection and selection for emergency calls
PCT/US2020/024519 WO2020242564A1 (en) 2019-05-24 2020-03-24 Methods, systems, and computer readable media for enhanced signaling gateway (sgw) status detection and selection for emergency calls

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JP2022533349A JP2022533349A (en) 2022-07-22
JPWO2020242564A5 true JPWO2020242564A5 (en) 2023-04-03
JP7510957B2 JP7510957B2 (en) 2024-07-04

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EP (1) EP3977812B1 (en)
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