JP5778853B2 - 共通のpdpコンテキストを共有するためのシステムおよび方法 - Google Patents
共通のpdpコンテキストを共有するためのシステムおよび方法 Download PDFInfo
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Description
1222において、グループセキュリティに関する最適化を伴う認証/セキュリティ/ME IDの検索を実行できる。例えば、1つまたは複数のセキュリティ手順、識別手順、および/または認証手順を、共有グループコンテキストの使用を考慮するように修正することができる。具体的な変更については、以降でさらに詳細に論じる。新たなMME1206は、接続するデバイスのメンバーが共有コンテキストグループのメンバーであることを、例えば接続要求に基づいて認識することができる。例えば、WTRU1202に関するUE/WTRUコンテキストがネットワーク内に存在しない場合、接続要求がインテグリティ保護されていなかった場合、および/またはインテグリティチェックが失敗した場合には、インテグリティ保護およびNAS暗号化をアクティブ化するための認証およびNASセキュリティセットアップを実行することができる。例えば、WTRU1202に関する一時的なID(例えば、GUTI)が、古いMME/SGSN1208に、および/または新たなMME1206に知られていない場合には、新たなMME1206は、永続的なサブスクリプションID(例えば、IMSI)を送信するようWTRU1202に要求することができる。MME1206は、グループサブスクリプションID(例えば、グループIMSI)を送信するようWTRU1202に要求することができる。MMEは、EIRを用いてME IDをチェックすることができる。EIRは、例えば、盗まれたWTRUをブラックリストに載せるために使用することができる。
DCIMTCD(k)=MCC||MNC||IDG||ConvertDigit{Trunc{HA{IMSIG||IIDMTCD(k)},12-LenDigits{MNC||IDG}}}} 式(1)
RES(k)=hash(Ki(k)||nonce(k)) 式(2)
Temp=hash(Ki(NG)||nonce(NG));
For k=1 to NG-1
Temp=hash(Temp||RES(k));
End;
RES(NG)=Temp;
Ks(NG)=CK(NG)||IK(NG) 式(3)
Claims (14)
- 複数のデバイスの間でパケットデータプロトコル(PDP)コンテキストを共有する方法であって、
前記方法は、
無線送受信ユニット(WTRU)が前記PDPコンテキストを確立する第1の要求を送信することと、
前記WTRUが前記PDPコンテキストを修正する第2の要求を送信することであって、前記PDPコンテキストを確立する前記第1の要求または前記PDPコンテキストを修正する前記第2の要求は、前記WTRUが共有コンテキストグループのメンバーであるという表示を備えるアタッチ要求である、ことと、
前記WTRUが前記PDPコンテキストを確立または修正する前記要求が受け入れられたことを示す応答を受信することと、
前記WTRUが前記共有コンテキストグループ内の少なくとも1つの他のデバイスのためにゲートウェイとして機能することであって、前記少なくとも1つの他のデバイスは、前記PDPコンテキストを前記WTRUと共有する、ことと
を備える方法。 - 前記WTRUが共有コンテキストグループのメンバーであるという前記表示は、グループIMSI(international mobile subscriber identity)またはグループ識別(ID)である、請求項1の方法。
- 前記WTRUが1つまたは複数のコアネットワークノードとの間で認証を行うことをさらに備え、前記WTRUは、前記1つまたは複数のコアネットワークノードとの間で認証を行うときに、前記共有コンテキストグループのメンバーである少なくとも1つの他のデバイスを認証する、請求項1の方法。
- 前記WTRUは、前記共有コンテキストグループのメンバーである複数の他のデバイスの認証応答に基づいて認証応答を判定する、請求項3の方法。
- 前記PDPコンテキストを修正する前記第2の要求は、共通のPDPコンテキストを共有している前記共有コンテキストグループのメンバーである複数のデバイスに複数のIP(internet protocol)アドレスが割り当てられるよう求める要求を含む、請求項1の方法。
- 前記WTRUが共有コンテキストグループのメンバーであるという前記表示は、EPS(evolved packet service)アタッチタイプ情報要素内に含まれる、請求項1の方法。
- 前記共有コンテキストグループ内の前記少なくとも1つの他のデバイスは、非3GPP(non-third generation partnership project)デバイスである、請求項1の方法。
- パケットデータプロトコル(PDP)コンテキストを確立する第1の要求を送信し、
前記PDPコンテキストを修正する第2の要求を送信し、前記PDPコンテキストを確立する前記第1の要求または前記PDPコンテキストを修正する前記第2の要求は、WTRUが共有コンテキストグループのメンバーであるという表示を含むアタッチ要求であり、
前記PDPコンテキストを確立または修正する前記要求が受け入れられたことを示す応答を受信し、
前記共有コンテキストグループ内の少なくとも1つの他のデバイスのためにゲートウェイとして機能し、前記少なくとも1つの他のデバイスは、前記WTRUとの間で前記PDPコンテキストを共有する、
ように構成されたプロセッサを備えた無線送受信ユニット(WTRU)。 - 前記PDPコンテキストを修正する前記第2の要求は、共通のPDPコンテキストを共有している前記共有コンテキストグループのメンバーである複数のデバイスに複数のIP(internet protocol)アドレスが割り当てられるよう求める要求を含む、請求項8のWTRU。
- 前記表示は、グループIMSI(international mobile subscriber identity)またはグループ識別子(ID)を備える、請求項8のWTRU。
- 前記プロセッサは、少なくとも1つのコアネットワークノードとの間で認証を実行するようにさらに構成されており、かつ前記共有コンテキストグループ内のデバイスのための認証のシーケンスが存在する、請求項10のWTRU。
- 前記プロセッサは、前記共有コンテキストグループ内のデバイスのための認証の前記シーケンスを動的に判定するようにさらに構成される、請求項11のWTRU。
- 前記PDPコンテキストを修正する前記第2の要求が受け入れられたことを示す前記応答は、割り当てられているIPアドレスの数、および開始IPアドレスを示す、請求項8のWTRU。
- 前記PDPコンテキストを修正する前記第2の要求が受け入れられたことを示す前記応答は、前記少なくとも1つの他のデバイスに割り当てられるインターネットプロトコルアドレスを明示的に示す、請求項8のWTRU。
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PCT/US2012/031550 WO2012135680A1 (en) | 2011-04-01 | 2012-03-30 | System and method for sharing a common pdp context |
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JP2015137904A Active JP6055039B2 (ja) | 2011-04-01 | 2015-07-09 | 共通のpdpコンテキストを共有するためのシステムおよび方法 |
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US (1) | US9820335B2 (ja) |
EP (2) | EP2695474B1 (ja) |
JP (2) | JP5778853B2 (ja) |
KR (2) | KR101929533B1 (ja) |
CN (1) | CN103460786B (ja) |
TW (1) | TWI587670B (ja) |
WO (1) | WO2012135680A1 (ja) |
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JP2015173512A (ja) | 2015-10-01 |
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JP2014517553A (ja) | 2014-07-17 |
EP2695474B1 (en) | 2015-02-18 |
JP6055039B2 (ja) | 2016-12-27 |
US20130155948A1 (en) | 2013-06-20 |
TWI587670B (zh) | 2017-06-11 |
WO2012135680A1 (en) | 2012-10-04 |
US9820335B2 (en) | 2017-11-14 |
CN103460786A (zh) | 2013-12-18 |
EP2884812A1 (en) | 2015-06-17 |
KR101929533B1 (ko) | 2018-12-17 |
CN103460786B (zh) | 2016-11-09 |
KR20130141689A (ko) | 2013-12-26 |
EP2884812B1 (en) | 2016-12-28 |
KR101599595B1 (ko) | 2016-03-03 |
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