JP4903265B2 - 無線通信システムにおけるハンドオーバー方法及びその制御方法 - Google Patents
無線通信システムにおけるハンドオーバー方法及びその制御方法 Download PDFInfo
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- 238000000034 method Methods 0.000 title claims description 85
- 238000004891 communication Methods 0.000 title description 20
- 230000004044 response Effects 0.000 claims description 11
- 238000010295 mobile communication Methods 0.000 claims description 6
- 230000005540 biological transmission Effects 0.000 description 61
- 230000008569 process Effects 0.000 description 32
- 238000012790 confirmation Methods 0.000 description 24
- 238000005259 measurement Methods 0.000 description 19
- 238000010586 diagram Methods 0.000 description 15
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- 230000011664 signaling Effects 0.000 description 6
- 230000007704 transition Effects 0.000 description 6
- 230000001360 synchronised effect Effects 0.000 description 4
- 238000012546 transfer Methods 0.000 description 4
- 230000004913 activation Effects 0.000 description 3
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- 239000003795 chemical substances by application Substances 0.000 description 2
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/0005—Control or signalling for completing the hand-off
- H04W36/0011—Control or signalling for completing the hand-off for data sessions of end-to-end connection
- H04W36/0033—Control or signalling for completing the hand-off for data sessions of end-to-end connection with transfer of context information
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/0005—Control or signalling for completing the hand-off
- H04W36/0055—Transmission or use of information for re-establishing the radio link
- H04W36/0072—Transmission or use of information for re-establishing the radio link of resource information of target access point
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/08—Reselecting an access point
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
- H04W88/08—Access point devices
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
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- Signal Processing (AREA)
- Mobile Radio Communication Systems (AREA)
Description
(項目1)
無線通信システムで端末と連結された第1基地局が前記端末のハンドオーバーを制御する方法であって、
第2基地局へのハンドオーバー決定後に、前記端末と前記第1基地局間の連結設定状態に関連した情報及びデータ送受信状態に関連した情報のうち少なくとも一つを含む状態情報を、前記第2基地局に伝送する段階と、
ハンドオーバー終了後に前記端末が行なわねばならない動作に関連した動作情報を前記端末に伝送する段階と、
を含む、ハンドオーバー制御方法。
(項目2)
前記第2基地局から前記動作情報を受信する段階をさらに含む、項目1に記載のハンドオーバー制御方法。
(項目3)
前記連結設定状態情報は、前記端末の上りリンク同期化状態に関連した情報を含む、項目1または2に記載のハンドオーバー制御方法。
(項目4)
前記データ送受信状態情報は、前記端末のデータ送信及び受信状態に関連した活性化レベル(activity level)情報を含む、項目1または2に記載のハンドオーバー制御方
法。
(項目5)
前記端末が前記第1基地局と上りリンク非同期状態である場合、前記動作情報は、前記端末がハンドオーバー終了後に前記第2基地局と上りリンク同期を獲得する手順を行なわないということを指示する情報を含む、項目3に記載のハンドオーバー制御方法。
(項目6)
前記端末が前記第1基地局と上りリンク同期状態である場合、前記動作情報は、前記端末がハンドオーバー終了後に前記第2基地局と上りリンク同期を獲得する手順を行なわないということを指示する情報を含む、項目3に記載のハンドオーバー制御方法。
(項目7)
無線通信システムで端末が第1セルから第2セルへのハンドオーバーを行なう方法であって、
前記端末がハンドオーバー完了後に前記第2セルで行なわねばならない動作に関連した情報を含む動作情報を、前記第1セルを管理する基地局または前記第2セルを管理する基地局から受信する段階と、
ハンドオーバー完了後に前記第2セルで前記動作情報による動作を行なう段階と、
を含む、ハンドオーバー方法。
(項目8)
前記動作情報は、前記端末がハンドオーバー完了後に前記第2セルで上りリンク同期を獲得するための手順を行なわねばならないか否かを指示する情報を含む、項目7に記載のハンドオーバー方法。
(項目9)
前記動作情報が、前記端末がハンドオーバー完了後に前記第2セルで上りリンク同期を獲得するための手順を行なわないということを指示する情報を含む場合、前記端末は、ハンドオーバー完了後に前記第2シールで上りリンク同期を獲得するための手順を行なわないことを特徴とする、項目8に記載のハンドオーバー方法。
(項目10)
前記動作情報が、前記端末がハンドオーバー完了後に前記第2セルで上りリンク同期を獲得するための手順を行なうということを指示する情報を含む場合、前記端末は、ハンドオーバー完了後に前記第2セルで上りリンク同期を獲得するための手順を行なうことを特徴とする、項目8に記載のハンドオーバー方法。
Claims (16)
- 移動通信システム内のソース基地局においてハンドオーバー手順を実行する方法であって、
前記方法は、
ターゲット基地局へのハンドオーバーを決定した後に、第1メッセージを前記ターゲット基地局に伝送することであって、前記第1メッセージは、ハンドオーバーの前にユーザ機器(UE)がデータを伝送または受信しなかった時間に関する情報を含む、ことと、
前記ターゲット基地局から前記第1メッセージに対する応答として第2メッセージを受信することであって、前記第2メッセージは、UE識別子および資源設定情報を含む、ことと、
前記第2メッセージを受信した後に、ハンドオーバー命令メッセージを前記UEに伝送することと
を含む、方法。 - 前記UE識別子は、C−RNTI(Cell Radio Network Temporary Identifier)を含む、請求項1に記載の方法。
- 前記第1メッセージは、前記UEと前記ソース基地局との間の連結設定状態に関連する情報をさらに含む、請求項1に記載の方法。
- 前記連結設定状態に関連する情報は、前記UEの上りリンク同期化状態に関連する情報を含む、請求項3に記載の方法。
- 移動通信システム内の基地局であって、前記基地局は、ハンドオーバー手順を実行するように構成され、
前記基地局は、
無線資源制御(RRC)階層と、
無線リンク制御(RLC)階層と、
媒体接続制御(MAC)階層と、
物理(PHY)階層と
を備え、
前記基地局は、
ターゲット基地局へのハンドオーバーを決定した後に、第1メッセージを前記ターゲット基地局に伝送することであって、前記第1メッセージは、ハンドオーバーの前にユーザ機器(UE)がデータを伝送または受信しなかった時間に関する情報を含む、ことと、
前記ターゲット基地局から前記第1メッセージに対する応答として第2メッセージを受信することであって、前記第2メッセージは、UE識別子および資源設定情報を含む、ことと、
前記第2メッセージを受信した後に、ハンドオーバー命令メッセージを前記UEに伝送することと
を実行するように構成される、基地局。 - 前記UE識別子は、C−RNTI(Cell Radio Network Temporary Identifier)を含む、請求項5に記載の基地局。
- 前記第1メッセージは、前記UEと前記基地局との間の連結設定状態に関連する情報をさらに含む、請求項5に記載の基地局。
- 前記連結設定状態に関連する情報は、前記UEの上りリンク同期化状態に関連する情報を含む、請求項7に記載の基地局。
- 移動通信システム内のターゲット基地局においてハンドオーバー手順を実行する方法であって、
前記方法は、
前記ターゲット基地局へのハンドオーバーが決定された後に、ソース基地局から第1メッセージを受信することであって、前記第1メッセージは、ハンドオーバーの前にユーザ機器(UE)がデータを伝送または受信しなかった時間に関する情報を含む、ことと、
前記第1メッセージに対する応答として第2メッセージを前記ソース基地局に伝送することであって、前記第2メッセージは、UE識別子および資源設定情報を含む、ことと、
前記資源設定情報に従って前記UEからランダムアクセスプリアンブルを受信することと
を含む、方法。 - 前記UE識別子は、C−RNTI(Cell Radio Network Temporary Identifier)を含む、請求項9に記載の方法。
- 前記第1メッセージは、前記UEと前記基地局との間の連結設定状態に関連する情報をさらに含む、請求項9に記載の方法。
- 前記連結設定状態に関連する情報は、前記UEの上りリンク同期化状態に関連する情報を含む、請求項11に記載の方法。
- 移動通信システム内の基地局であって、前記基地局は、ハンドオーバー手順を実行するように構成され、
前記基地局は、
無線資源制御(RRC)階層と、
無線リンク制御(RLC)階層と、
媒体接続制御(MAC)階層と、
物理(PHY)階層と
を備え、
前記基地局は、
前記基地局へのハンドオーバーが決定された後に、ソース基地局から第1メッセージを受信することであって、前記第1メッセージは、ハンドオーバーの前にユーザ機器(UE)がデータを伝送または受信しなかった時間に関する情報を含む、ことと、
前記第1メッセージに対する応答として第2メッセージを前記ソース基地局に伝送することであって、前記第2メッセージは、UE識別子および資源設定情報を含む、ことと、
前記資源設定情報に従って前記UEからランダムアクセスプリアンブルを受信することと
を実行するように構成される、基地局。 - 前記UE識別子は、C−RNTI(Cell Radio Network Temporary Identifier)を含む、請求項13に記載の基地局。
- 前記第1メッセージは、前記UEと前記基地局との間の連結設定状態に関連する情報をさらに含む、請求項13に記載の基地局。
- 前記連結設定状態に関連する情報は、前記UEの上りリンク同期化状態に関連する情報を含む、請求項15に記載の基地局。
Applications Claiming Priority (15)
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US91504207P | 2007-04-30 | 2007-04-30 | |
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US91541707P | 2007-05-01 | 2007-05-01 | |
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US91566607P | 2007-05-02 | 2007-05-02 | |
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US94478507P | 2007-06-18 | 2007-06-18 | |
US60/944,785 | 2007-06-18 | ||
KR10-2007-0081356 | 2007-08-13 | ||
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JP2010502091A JP2010502091A (ja) | 2010-01-21 |
JP4903265B2 true JP4903265B2 (ja) | 2012-03-28 |
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US (1) | US8811336B2 (ja) |
EP (1) | EP2060138B1 (ja) |
JP (1) | JP4903265B2 (ja) |
KR (1) | KR101265643B1 (ja) |
AU (1) | AU2007288600B2 (ja) |
BR (1) | BRPI0716434A2 (ja) |
MX (1) | MX2009001895A (ja) |
TW (1) | TWI452866B (ja) |
WO (1) | WO2008023927A2 (ja) |
ZA (1) | ZA200901373B (ja) |
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KR101265643B1 (ko) | 2013-05-22 |
TW200830903A (en) | 2008-07-16 |
US8811336B2 (en) | 2014-08-19 |
WO2008023927A3 (en) | 2009-06-04 |
BRPI0716434A2 (pt) | 2014-03-04 |
EP2060138A4 (en) | 2013-03-20 |
EP2060138B1 (en) | 2016-09-28 |
WO2008023927A2 (en) | 2008-02-28 |
ZA200901373B (en) | 2010-02-24 |
TWI452866B (zh) | 2014-09-11 |
EP2060138A2 (en) | 2009-05-20 |
MX2009001895A (es) | 2009-03-25 |
AU2007288600A1 (en) | 2008-02-28 |
KR20080018104A (ko) | 2008-02-27 |
US20100278143A1 (en) | 2010-11-04 |
JP2010502091A (ja) | 2010-01-21 |
AU2007288600B2 (en) | 2010-09-16 |
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