JPWO2022050987A5 - - Google Patents

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JPWO2022050987A5
JPWO2022050987A5 JP2023514046A JP2023514046A JPWO2022050987A5 JP WO2022050987 A5 JPWO2022050987 A5 JP WO2022050987A5 JP 2023514046 A JP2023514046 A JP 2023514046A JP 2023514046 A JP2023514046 A JP 2023514046A JP WO2022050987 A5 JPWO2022050987 A5 JP WO2022050987A5
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サービス通信プロキシ（ＳＣＰ）に特有の優先順位付けされたプロデューサネットワーク機能（ＮＦ）発見およびルーティングのための方法であって、前記方法は、
前記ＳＣＰで、ＳＣＰに特有のプロデューサＮＦサービスインスタンス待ち時間情報を含むプロデューサＮＦ待ち時間データベースを維持するステップと、
前記ＳＣＰで発見要求メッセージを受信するか、または、3gpp-Sbi-Discoveryヘッダを有するサービス要求メッセージを受信し、受信された前記サービス要求メッセージに応答して前記ＳＣＰで発見要求メッセージを生成するステップと、
前記発見要求メッセージにおいて識別されたサービスを提供することができるプロデューサＮＦインスタンスの少なくとも１つのサービスインスタンスのために、前記ＳＣＰに特有のプロデューサＮＦサービスインスタンス待ち時間情報を含むように、前記ＳＣＰが前記発見要求メッセージを修正するステップと、
前記ＳＣＰが前記発見要求メッセージをＮＦリポジトリ機能（ＮＲＦ）へ転送するステップと、
前記ＮＲＦで、前記発見要求メッセージにおいて識別された前記サービスを提供することができるプロデューサＮＦインスタンスおよびそれらのそれぞれのプロデューサＮＦサービスインスタンスのＮＦプロファイルおよび関連付けられたサービスプロファイルのリストを作成するステップと、
前記ＮＲＦが、前記ＳＣＰに特有のプロデューサＮＦサービスインスタンス待ち時間情報に基づいて、前記リストにおけるプロデューサＮＦインスタンスおよびプロデューサＮＦサービスインスタンスのＮＦプロファイルおよびサービスプロファイルの優先順位を設定または調節するステップと、
前記ＮＲＦが、プロデューサＮＦインスタンスおよびそれらのそれぞれのプロデューサＮＦサービスインスタンスのＮＦプロファイルおよび関連付けられたサービスプロファイルの前記リストを含む発見応答メッセージを、前記ＳＣＰへ転送するステップとを備える、方法。 A method for service communication proxy (SCP) specific prioritized producer network function (NF) discovery and routing, the method comprising:
maintaining at the SCP a producer NF latency database containing SCP-specific producer NF service instance latency information;
receiving a discovery request message at the SCP or a service request message having a 3gpp-Sbi-Discovery header and generating a discovery request message at the SCP in response to the received service request message; ,
said SCP includes producer NF service instance latency information specific to said SCP for at least one service instance of a producer NF instance capable of providing the service identified in said discovery request message; modifying the request message;
the SCP forwarding the discovery request message to an NF repository function (NRF);
creating, in the NRF, a list of NF profiles and associated service profiles of producer NF instances and their respective producer NF service instances capable of providing the service identified in the discovery request message;
the NRF setting or adjusting priorities of NF profiles and service profiles of producer NF instances and producer NF service instances in the list based on producer NF service instance latency information specific to the SCP;
the NRF forwarding a discovery response message containing the list of NF profiles and associated service profiles of producer NF instances and their respective producer NF service instances to the SCP. 前記プロデューサＮＦ待ち時間データベースを維持するステップは、各プロデューサＮＦインスタンスの各プロデューサＮＦサービスインスタンスについて、前記ＳＣＰと前記プロデューサＮＦインスタンスの前記サービスインスタンスとの間のメッセージングのための往復時間を示す少なくとも１つの往復時間を計算するステップを含む、請求項１に記載の方法。 The step of maintaining the Producer NF latency database includes, for each Producer NF service instance of each Producer NF instance, at least one indicative of the round trip time for messaging between the SCP and the service instance of the Producer NF instance. 2. The method of claim 1, comprising the step of calculating round trip time. 少なくとも１つの往復時間を計算するステップは、
前記ＳＣＰと前記プロデューサＮＦインスタンスの前記プロデューサＮＦサービスインスタンスとの間のトランスポート層メッセージングを使用して、伝送往復時間を計算するステップと、
前記ＳＣＰと前記プロデューサＮＦインスタンスの前記プロデューサＮＦサービスインスタンスとの間のサービスメッセージングのためのサービスメッセージング往復時間を計算するステップと、
前記伝送往復時間および前記サービスメッセージング往復時間の最大値を真の往復時間として判定するステップとを含む、請求項２に記載の方法。 The step of calculating at least one round trip time includes:
calculating a transmission round trip time using transport layer messaging between the SCP and the Producer NF service instance of the Producer NF instance;
calculating a service messaging round trip time for service messaging between the SCP and the Producer NF service instance of the Producer NF instance;
and determining a maximum value of the transmission round trip time and the service messaging round trip time as a true round trip time. 前記プロデューサＮＦ待ち時間データベースを維持するステップは、前記真の往復時間を前記プロデューサＮＦ待ち時間データベースに格納するステップを含む、請求項３に記載の方法。 4. The method of claim 3, wherein maintaining the producer NF latency database includes storing the true round trip time in the producer NF latency database. 前記プロデューサＮＦ待ち時間データベースを維持するステップは、各プロデューサＮＦインスタンスの各プロデューサＮＦサービスインスタンスについて、前記プロデューサＮＦインスタンスの前記プロデューサＮＦサービスインスタンスと前記ＳＣＰとの間の待ち時間がしきい値を上回るかどうかについての指標を格納するステップを備える、請求項１～４のいずれか１項に記載の方法。 Maintaining the producer NF latency database includes determining, for each producer NF service instance of each producer NF instance, whether the latency between the producer NF service instance of the producer NF instance and the SCP exceeds a threshold. 5. A method according to any one of claims 1 to 4 , comprising the step of storing an indicator as to whether. 前記ＳＣＰに特有のプロデューサＮＦサービスインスタンス待ち時間情報を含むように前記発見要求メッセージを修正するステップは、前記指標を前記発見要求メッセージに追加するステップを含む、請求項５に記載の方法。 6. The method of claim 5, wherein modifying the discovery request message to include SCP-specific producer NF service instance latency information comprises adding the indicator to the discovery request message. 前記ＮＲＦが前記ＮＦプロファイルおよびサービスプロファイルの前記優先順位を設定または調節するステップは、前記発見要求メッセージに前記指標が存在するプロデューサＮＦインスタンスおよびプロデューサＮＦサービスインスタンスに対応するＮＦプロファイルおよびサービスプロファイルの前記優先順位を増加または減少させるステップを含む、請求項６に記載の方法。 The step of the NRF setting or adjusting the priorities of the NF profile and service profile includes adjusting the priority of the NF profile and service profile corresponding to the producer NF instance and producer NF service instance for which the indicator is present in the discovery request message. 7. The method of claim 6, including the step of increasing or decreasing the ranking. 前記発見要求メッセージを修正するステップは、前記プロデューサＮＦサービスインスタンス待ち時間情報を前記発見要求メッセージのカスタムヘッダに挿入するステップを含む、請求項１～７のいずれか１項に記載の方法。 A method according to any preceding claim, wherein modifying the discovery request message comprises inserting the producer NF service instance latency information into a custom header of the discovery request message. 発見要求メッセージを受信するか、または、サービス要求メッセージを受信するステップは、発見要求メッセージを受信するステップを備え、前記方法はさらに、前記ＳＣＰで、前記発見応答メッセージの受信に応答して、前記発見応答メッセージをコンシューマＮＦへ転送するステップを備える、請求項１～８のいずれか１項に記載の方法。 The step of receiving a discovery request message or receiving a service request message comprises receiving a discovery request message, and the method further includes, at the SCP, in response to receiving the discovery response message, A method according to any one of claims 1 to 8 , comprising the step of forwarding a discovery response message to a consumer NF. 発見要求メッセージまたはサービス要求メッセージを受信するステップは、サービス要求メッセージを受信するステップを備え、前記方法はさらに、前記ＳＣＰで、前記サービス要求メッセージを、前記発見応答メッセージにおいて前記ＮＲＦによって返された前記リストにおけるサービスプロファイルを有する前記プロデューサＮＦサービスインスタンスのうちの１つへ転送するステップを備える、請求項１～８のいずれか１項に記載の方法。 The step of receiving a discovery request message or a service request message comprises receiving a service request message, and the method further includes, at the SCP, transmitting the service request message to the service request message returned by the NRF in the discovery response message. A method according to any preceding claim, comprising forwarding to one of the producer NF service instances having a service profile in a list. サービス通信プロキシ（ＳＣＰ）に特有の優先順位付けされたプロデューサネットワーク機能（ＮＦ）発見およびルーティング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ＳＣＰと、
少なくとも１つのプロセッサを含むＮＦリポジトリ機能（ＮＲＦ）と、
ＳＣＰに特有のプロデューサＮＦサービスインスタンス待ち時間情報を含むプロデューサＮＦ待ち時間データベースを維持し、発見要求メッセージを受信するか、または、3gpp-Sbi-Discoveryヘッダを有するサービス要求メッセージを受信し、受信された前記発見またはサービス要求メッセージに応答して前記ＳＣＰで発見要求メッセージを生成し、前記発見要求メッセージにおいて識別されたサービスを提供することができるプロデューサＮＦインスタンスの少なくとも１つのプロデューサＮＦサービスインスタンスのために、前記ＳＣＰに特有のプロデューサＮＦサービスインスタンス待ち時間情報を含むように前記発見要求メッセージを修正し、前記発見要求メッセージを前記ＮＲＦへ転送するために、前記ＳＣＰの前記少なくとも１つのプロセッサによって実現される、ＳＣＰ発見／サービス要求ハンドラ兼データベースマネージャと、
前記発見要求メッセージにおいて識別された前記サービスを提供することができるプロデューサＮＦインスタンスおよびそれらのそれぞれのプロデューサＮＦサービスインスタンスのＮＦプロファイルおよび関連付けられたサービスプロファイルのリストを作成し、前記ＮＲＦが、前記ＳＣＰに特有のプロデューサＮＦサービスインスタンス待ち時間情報に基づいて、前記リストにおけるプロデューサＮＦインスタンスおよびそれらのそれぞれのプロデューサＮＦサービスインスタンスのＮＦプロファイルおよび関連付けられたサービスプロファイルの優先順位を設定または調節し、前記ＮＲＦが、プロデューサＮＦインスタンスおよびそれらのそれぞれのプロデューサＮＦサービスインスタンスのＮＦプロファイルおよび関連付けられたサービスプロファイルの前記リストを含む発見応答メッセージを、前記ＳＣＰへ転送するために、前記ＮＲＦの前記少なくとも１つのプロセッサによって実現される、ＮＲＦ発見要求ハンドラとを備える、システム。 A system for service communication proxy (SCP) specific prioritized producer network function (NF) discovery and routing, the system comprising:
an SCP including at least one processor;
an NF repository function (NRF) including at least one processor;
maintains a producer NF latency database containing producer NF service instance latency information specific to the SCP and receives a discovery request message or receives a service request message with a 3gpp-Sbi-Discovery header; for at least one producer NF service instance of a producer NF instance capable of generating a discovery request message at the SCP in response to the discovery or service request message and providing the service identified in the discovery request message; implemented by the at least one processor of the SCP to modify the discovery request message to include producer NF service instance latency information specific to the SCP and forward the discovery request message to the NRF; SCP discovery/service request handler and database manager;
creating a list of NF profiles and associated service profiles of producer NF instances and their respective producer NF service instances capable of providing the service identified in the discovery request message; setting or adjusting priorities of the NF profiles and associated service profiles of producer NF instances and their respective producer NF service instances in the list based on specific producer NF service instance latency information; implemented by the at least one processor of the NRF to forward a discovery response message containing the list of NF profiles and associated service profiles of producer NF instances and their respective producer NF service instances to the SCP; and an NRF discovery request handler. 前記ＳＣＰ発見／サービス要求ハンドラ兼データベースマネージャは、前記プロデューサＮＦ待ち時間データベースを維持する際、各プロデューサＮＦインスタンスの各プロデューサＮＦサービスインスタンスについて、前記ＳＣＰと前記プロデューサＮＦインスタンスの前記プロデューサＮＦサービスインスタンスとの間のメッセージングのための往復時間を示す少なくとも１つの往復時間を計算するように構成される、請求項１１に記載のシステム。 The SCP discovery/service request handler and database manager, when maintaining the producer NF latency database, determines, for each producer NF service instance of each producer NF instance, the relationship between the SCP and the producer NF service instance of the producer NF instance. 12. The system of claim 11, configured to calculate at least one round trip time indicating a round trip time for messaging between. 前記ＳＣＰ発見／サービス要求ハンドラ兼データベースマネージャは、少なくとも１つの往復時間を計算する際、
前記ＳＣＰと前記プロデューサＮＦインスタンスの前記プロデューサＮＦサービスインスタンスとの間のトランスポート層メッセージングを使用して、伝送往復時間を計算し、
前記ＳＣＰと前記プロデューサＮＦインスタンスの前記プロデューサＮＦサービスインスタンスとの間のサービスメッセージングのためのサービスメッセージング往復時間を計算し、
前記伝送往復時間および前記サービスメッセージング往復時間の最大値を真の往復時間として判定するように構成される、請求項１２に記載のシステム。 The SCP discovery/service request handler and database manager calculates at least one round trip time;
calculating a transmission round trip time using transport layer messaging between the SCP and the Producer NF service instance of the Producer NF instance;
calculating a service messaging round trip time for service messaging between the SCP and the Producer NF service instance of the Producer NF instance;
13. The system of claim 12, configured to determine a maximum value of the transmission round trip time and the service messaging round trip time as a true round trip time. 前記ＳＣＰ発見／サービス要求ハンドラ兼データベースマネージャは、前記プロデューサＮＦ待ち時間データベースを維持する際、前記真の往復時間を前記プロデューサＮＦ待ち時間データベースに格納するように構成される、請求項１３に記載のシステム。 14. The SCP discovery/service request handler and database manager is configured to store the true round trip time in the producer NF latency database when maintaining the producer NF latency database. system. 前記ＳＣＰ発見／サービス要求ハンドラ兼データベースマネージャは、前記プロデューサＮＦ待ち時間データベースを維持する際、各プロデューサＮＦインスタンスの各プロデューサＮＦサービスインスタンスについて、前記プロデューサＮＦインスタンスの前記プロデューサＮＦサービスインスタンスと前記ＳＣＰとの間の待ち時間がしきい値を上回るかどうかについての指標を格納するように構成される、請求項１１～１４のいずれか１項に記載のシステム。 The SCP discovery/service request handler and database manager, when maintaining the producer NF latency database, determines, for each producer NF service instance of each producer NF instance, the relationship between the producer NF service instance of the producer NF instance and the SCP. 15. A system according to any one of claims 11 to 14, configured to store an indication as to whether a waiting time between is above a threshold. 前記ＳＣＰ発見／サービス要求ハンドラ兼データベースマネージャは、前記ＳＣＰに特有のプロデューサＮＦサービスインスタンス待ち時間情報を含むように前記発見要求メッセージを修正する際、前記指標を前記発見要求メッセージに追加するように構成され、前記ＮＲＦ発見要求ハンドラは、前記発見要求メッセージに前記指標が存在する前記ＮＦプロファイルおよび関連付けられたサービスプロファイルの前記優先順位を設定または調節する際、前記ＮＦプロファイルおよび関連付けられたサービスプロファイルの前記優先順位を増加または減少させるように構成される、請求項１５に記載のシステム。 The SCP discovery/service request handler and database manager is configured to add the indicator to the discovery request message when modifying the discovery request message to include producer NF service instance latency information specific to the SCP. and the NRF discovery request handler, when setting or adjusting the priority of the NF profile and associated service profile for which the indicator is present in the discovery request message, the NRF discovery request handler 16. The system of claim 15, configured to increase or decrease the priority of a service profile. 前記ＳＣＰ発見／サービス要求ハンドラ兼データベースマネージャは、前記発見要求メッセージを修正する際、前記ＳＣＰに特有のプロデューサＮＦサービスインスタンス待ち時間情報を前記発見要求メッセージのカスタムヘッダに挿入するように構成される、請求項１１～１６のいずれか１項に記載のシステム。 The SCP discovery/service request handler and database manager is configured to insert producer NF service instance latency information specific to the SCP into a custom header of the discovery request message when modifying the discovery request message; System according to any one of claims 11 to 16. 発見要求メッセージを受信するか、または、サービス要求メッセージを受信することは、発見要求メッセージを受信することを備え、前記ＳＣＰ発見／サービス要求ハンドラ兼データベースマネージャは、
前記発見応答メッセージの受信に応答して、前記発見応答メッセージをコンシューマＮＦへ転送し、
前記コンシューマＮＦから、前記リストにおけるプロデューサＮＦサービスプロファイルを有する前記プロデューサＮＦサービスインスタンスのうちの１つにアドレス指定されたサービス要求メッセージを受信し、
前記サービス要求メッセージを前記プロデューサＮＦサービスインスタンスへ転送するように構成される、請求項１１～１７のいずれか１項に記載のシステム。 Receiving a discovery request message or receiving a service request message comprises receiving a discovery request message, the SCP discovery/service request handler and database manager comprising:
In response to receiving the discovery response message, forwarding the discovery response message to a consumer NF;
receiving a service request message from the consumer NF addressed to one of the producer NF service instances having a producer NF service profile in the list;
The system according to any one of claims 11 to 17, configured to forward the service request message to the producer NF service instance. 発見要求メッセージまたはサービス要求メッセージを受信することは、サービス要求メッセージを受信することを備え、前記ＳＣＰ発見／サービス要求ハンドラ兼データベースマネージャは、前記サービス要求メッセージを、前記発見応答メッセージにおいて前記ＮＲＦによって返された前記リストにおけるサービスプロファイルを有する前記プロデューサＮＦインスタンスの前記プロデューサＮＦサービスインスタンスのうちの１つへ転送するように構成される、請求項１１～１７のいずれか１項に記載のシステム。 Receiving a discovery request message or a service request message comprises receiving a service request message, and the SCP discovery/service request handler and database manager returns the service request message by the NRF in the discovery response message. 18. The system according to any one of claims 11 to 17, configured to forward to one of the Producer NF service instances of the Producer NF instances having service profiles in the list assigned to the Producer NF instance. 請求項１～１０のいずれかに記載の方法をコンピュータのプロセッサに実行させるためのコンピュータ実行可能なプログラム。A computer-executable program for causing a processor of a computer to execute the method according to any one of claims 1 to 10.
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