JP2017108439A - 無線ネットワークモビリティ手続きの管理技術 - Google Patents
無線ネットワークモビリティ手続きの管理技術 Download PDFInfo
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- JP2017108439A JP2017108439A JP2017019975A JP2017019975A JP2017108439A JP 2017108439 A JP2017108439 A JP 2017108439A JP 2017019975 A JP2017019975 A JP 2017019975A JP 2017019975 A JP2017019975 A JP 2017019975A JP 2017108439 A JP2017108439 A JP 2017108439A
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Abstract
【解決手段】進化型パケットコアノード(EPCノード)は、ユーザ端末(UE)に対するモビリティ手続きの通知を受信し、UEのローカルゲートウェイによる(L−GWによる)パケットデータネットワーク接続(PDN接続)を解放するか否かを決定し、L−GWによるPDN接続が解放されるべきという決定に応答して、デタッチ要求メッセージまたはセッション削除要求メッセージのいずれかを送信することにより、前記L−GWによるPDN接続を解放する処理を開始する。
【選択図】図6
Description
本願は、2013年3月29日出願の米国仮特許出願第61/806,821号に対する優先権を主張し、その全体は、参照として本明細書に組み込まれる。
Claims (33)
- ユーザ端末(UE)に対するモビリティ手続きの通知を受信し、前記UEのローカルゲートウェイによる(L−GWによる)パケットデータネットワーク接続(PDN接続)を解放するか否かを決定し、前記L−GWによるPDN接続が解放されるべきという決定に応答して、デタッチ要求メッセージまたはセッション削除要求メッセージのいずれかを送信することにより、前記L−GWによるPDN接続を解放する処理を開始するプロセッサ回路を備える、進化型パケットコアノード(EPCノード)。
- 前記L−GWによるPDN接続は、ローカルネットワークにおいて選択されたインターネットプロトコルトラフィックのオフロード(SIPTO@LN)によるPDN接続を含む、請求項1に記載のEPCノード。
- 前記プロセッサ回路は、前記L−GWによるPDN接続が前記UEの唯一のPDN接続を含むという決定に応答して、デタッチ要求メッセージを送信することにより、前記L−GWによるPDN接続を解放するために、モビリティ管理エンティティ(MME)開始デタッチ処理を開始する、請求項1に記載のEPCノード。
- 前記プロセッサ回路は、前記L−GWによるPDN接続が前記UEの唯一のPDN接続を含むのではないという決定に応答して、セッション削除要求メッセージを送信することにより、前記L−GWによるPDN接続を解放するためのモビリティ管理エンティティ(MME)要求PDN切断処理を開始する、請求項1に記載のEPCノード。
- 前記プロセッサ回路は、再アクティブ化要求原因を有する前記セッション削除要求メッセージを送信する、請求項4に記載のEPCノード。
- 前記プロセッサ回路は、前記モビリティ手続きの後で、前記デタッチ要求メッセージまたは前記セッション削除要求メッセージのいずれかを送信する、請求項1に記載のEPCノード。
- 前記モビリティ手続きは、トラッキングエリア更新(TAU)を含む、請求項1に記載のEPCノード。
- 前記モビリティ手続きは、ハンドオーバを含む、請求項1に記載のEPCノード。
- 無線周波数(RF)送受信機と、1つまたは複数のRFアンテナと、を備える、請求項1から8のいずれか1項に記載のEPCノード。
- その少なくとも一部がハードウェアにあるロジックを備え、前記ロジックは、ユーザ端末(UE)に対するモビリティ手続き中に、モビリティ手続き制御メッセージを受信し、前記モビリティ手続き制御メッセージに基づいて、ローカルネットワークにおいて選択されたインターネットプロトコルトラフィックのオフロード(SIPTO@LN)によるUEのパケットデータネットワーク接続(PDN接続)を解放することを決定し、モビリティ手続きの後で、前記SIPTO@LN PDN接続の非アクティブ化を実行する、モビリティ管理エンティティ(MME)。
- 前記ロジックは、前記SIPTO@LN PDN接続が前記UEの唯一のPDN接続を含むのではないという決定に応答して、MME要求PDN切断手続きを開始することによって、前記SIPTO@LN PDN接続の前記非アクティブ化を実行する、請求項10に記載のMME。
- 前記ロジックは、再アクティブ化要求原因を有する前記MME要求PDN切断手続きを開始する、請求項11に記載のMME。
- 前記ロジックは、前記SIPTO@LN PDN接続が前記UEの唯一のPDN接続を含むという決定に応答してMME開始デタッチ手続きを開始することによって、前記SIPTO@LN PDN接続の前記非アクティブ化を実行する、請求項10に記載のMME。
- 前記モビリティ手続きは、トラッキングエリア更新手続き(TAU手続き)を含み、前記モビリティ手続き制御メッセージは、コンテキスト応答メッセージを含む、請求項10に記載のMME。
- 前記モビリティ手続きは、ハンドオーバ手続きを含み、前記モビリティ手続き制御メッセージは、優先再配置要求メッセージを含む、請求項10に記載のMME。
- 前記ロジックは、前記モビリティ手続き制御メッセージを前記UEの前のサービングMMEから受信する、請求項10に記載のMME。
- 前記ロジックは、S10インタフェース接続によって前記モビリティ手続き制御メッセージを受信する、請求項10に記載のMME。
- モビリティ管理エンティティ(MME)上で実行されたことに応答して、前記MMEに、
ユーザ端末(UE)に対するトラッキングエリア更新手続き(TAU手続き)の通知を受信し、
前記TAU手続き中に、前記UEのローカルネットワークにおいて選択されたインターネットプロトコルトラフィックのオフロード(SIPTO@LN)によるパケットデータネットワーク接続(PDN接続)を特定し、かつ、前記UEのローカルホームネットワーク識別子(LHN−ID)を特定するコンテキスト応答メッセージを受信し、
前記LHN−IDに基づいて、前記SIPTO@LN PDN接続の解放を指示するか否かを決定させる、プログラム。 - 前記MME上で実行されたことに応答して、前記MMEに、前記UEのローカルホームネットワークが前記TAU手続きに従って変化しないという前記LHN−IDに基づく決定に応答して、前記SIPTO@LN PDN接続の前記解放を指示しないことを決定させる、請求項18に記載のプログラム。
- 前記MME上で実行されたことに応答して、前記MMEに、前記UEのローカルホームネットワークが前記TAU手続きに従って変化するという前記LHN−IDに基づく決定に応答して、前記SIPTO@LN PDN接続の前記解放を指示することを決定させる、請求項18に記載のプログラム。
- 前記MME上で実行されたことに応答して、前記MMEに、前記SIPTO@LN PDN接続が前記UEの唯一のPDN接続であることを決定させる、請求項20に記載のプログラム。
- 前記MME上で実行されたことに応答して、前記MMEに、前記SIPTO@LN PDN接続が前記UEの唯一のPDN接続ではないという決定に基づいて、PDN切断手続きを開始することによって前記SIPTO@LN PDN接続の前記解放を指示させる、請求項21に記載のプログラム。
- 前記MME上で実行されたことに応答して、前記MMEに、再アクティブ化要求原因を有する前記PDN切断手続きを開始させる、請求項22に記載のプログラム。
- 前記MME上で実行されたことに応答して、前記MMEに、前記SIPTO@LN PDN接続が前記UEの唯一のPDN接続であるという決定に基づいてデタッチ手続きを開始することによって、前記SIPTO@LN PDN接続の前記解放を指示させる、請求項21に記載のプログラム。
- 前記MMEは、前記TAU手続きの後で、前記UEの新たなMMEを備え、前記MMEは、前記UEの古いMMEからコンテキスト応答メッセージを受信する、請求項18に記載のプログラム。
- ユーザ端末(UE)のハンドオーバに対するターゲットモビリティ管理エンティティ(MME)において、再配置転送要求を受信する段階と、
プロセッサ回路によって、前記再配置転送要求に基づいて、前記UEのローカルゲートウェイによる(L−GWによる)パケットデータネットワーク接続(PDN接続)が切断されるべきであると決定する段階と、
前記L−GWによるPDN接続が前記UEの単独のPDN接続を含むか否かの決定に基づいて、前記L−GWによるPDN接続を切断するための処理を選択する段階と、
を備える、方法。 - 前記L−GWによるPDN接続は、ローカルネットワークにおいて選択されたインターネットプロトコルトラフィックのオフロード(SIPTO@LN)によるPDN接続を含む、請求項26に記載の方法。
- 前記選択された処理を開始することによって、前記UEの前記ハンドオーバの後で、前記L−GWによるPDN接続を切断する段階を備える、請求項26に記載の方法。
- 前記L−GWによるPDN接続が前記UEの単独のPDN接続を含むという決定に応答して、MME開始デタッチ処理を選択する段階を備える、請求項26に記載の方法。
- 前記L−GWによるPDN接続が前記UEの前記単独のPDN接続を含まないという決定に応答して、MME要求によるPDN切断処理を選択する段階を備える、請求項26に記載の方法。
- 再アクティブ化要求原因を有する前記MME要求によるPDN切断処理を開始する段階を備える、請求項30に記載の方法。
- 前記UEの前記ハンドオーバに対するソースMMEから前記再配置転送要求を受信する段階を備える、請求項26に記載の方法。
- 前記再配置転送要求と、前記UEのローカルホームネットワーク(LHN)が前記UEの前記ハンドオーバ中に変化しないという決定とに基づいて、前記UEの前記L−GWによるPDN接続が切断されるべきであると決定する段階を備える、請求項26に記載の方法。
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Also Published As
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WO2014160885A1 (en) | 2014-10-02 |
JP2016515774A (ja) | 2016-05-30 |
KR101793107B1 (ko) | 2017-11-02 |
CN105075304B (zh) | 2019-06-07 |
CN105075304A (zh) | 2015-11-18 |
EP2979472A4 (en) | 2017-01-11 |
US9826390B2 (en) | 2017-11-21 |
CN110225508B (zh) | 2022-03-25 |
EP2979472A1 (en) | 2016-02-03 |
KR101842850B1 (ko) | 2018-03-27 |
EP2979472B1 (en) | 2020-08-19 |
KR20170026655A (ko) | 2017-03-08 |
CN110225508A (zh) | 2019-09-10 |
KR20180037276A (ko) | 2018-04-11 |
JP6443466B2 (ja) | 2018-12-26 |
KR20150113101A (ko) | 2015-10-07 |
KR102030944B1 (ko) | 2019-10-10 |
US20150146532A1 (en) | 2015-05-28 |
US20190313237A1 (en) | 2019-10-10 |
JP6263817B2 (ja) | 2018-01-24 |
US20180020341A1 (en) | 2018-01-18 |
HK1217147A1 (zh) | 2016-12-23 |
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