JP4620093B2 - ハンドオーバ制御方法、無線基地局及び移動局 - Google Patents
ハンドオーバ制御方法、無線基地局及び移動局 Download PDFInfo
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- JP4620093B2 JP4620093B2 JP2007212506A JP2007212506A JP4620093B2 JP 4620093 B2 JP4620093 B2 JP 4620093B2 JP 2007212506 A JP2007212506 A JP 2007212506A JP 2007212506 A JP2007212506 A JP 2007212506A JP 4620093 B2 JP4620093 B2 JP 4620093B2
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- 238000000034 method Methods 0.000 title claims description 11
- 230000004044 response Effects 0.000 claims description 34
- 238000000605 extraction Methods 0.000 claims description 9
- 230000005540 biological transmission Effects 0.000 claims description 7
- 230000008054 signal transmission Effects 0.000 description 23
- 238000005259 measurement Methods 0.000 description 22
- 238000010295 mobile communication Methods 0.000 description 20
- 238000010586 diagram Methods 0.000 description 4
- 239000000284 extract Substances 0.000 description 4
- 230000007274 generation of a signal involved in cell-cell signaling Effects 0.000 description 4
- 230000004913 activation Effects 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 230000011664 signaling Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/08—Reselecting an access point
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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
- H04W36/0055—Transmission or use of information for re-establishing the radio link
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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
- H04W36/0055—Transmission or use of information for re-establishing the radio link
- H04W36/0064—Transmission or use of information for re-establishing the radio link of control information between different access points
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/24—Reselection being triggered by specific parameters
- H04W36/30—Reselection being triggered by specific parameters by measured or perceived connection quality data
- H04W36/302—Reselection being triggered by specific parameters by measured or perceived connection quality data due to low signal strength
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- 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
- H04W88/02—Terminal devices
Description
3GPP 36.300 V8.0.0 Technical specification group radio access network; Evolved universal terrestrial radio access (E-UTRA) and Evolved universal terrestrial radio access network (E-UTRAN); Overall description; Stage 2, 10.1.2.1.1
図1乃至図7を参照して、本発明の第1の実施形態に係る移動通信システムの構成について説明する。本実施形態では、移動通信システムとして、LTE方式の移動通信システムを例として説明するが、本発明は、LTE方式の移動通信システム以外の移動通信システムにも適用可能である。
図6を参照して、本発明の第1の実施形態に係る移動通信システムの動作について説明する。
本実施形態に係る移動通信システムによれば、無線基地局間ハンドオーバ時に、接続元無線基地局200Aで使用している無線関連情報と接続先無線基地局200Bが設定する無線関連情報との差分情報のみを移動局100に通知することで、冗長な情報を移動局100へ送信せず、伝送効率を改善することができる。
102…信号送受信部
104、204…信号処理生成部
106、206…無線関連情報保持部
200…無線基地局
202…対移動局信号送受信部
208…対無線基地局信号送受信部
210…無線関連情報差分抽出部
Claims (3)
- 移動局が接続する無線基地局を、接続元無線基地局から接続先無線基地局に切り換えるハンドオーバ制御方法であって、
前記接続元無線基地局が、該接続元無線基地局において保持されている無線関連情報を含むハンドオーバ要求信号を生成し、前記接続先無線基地局に対して送信する工程と、
前記接続先無線基地局が、受信した前記ハンドオーバ要求信号に含まれる前記無線関連情報と、該接続先無線基地局が設定する無線関連情報との差分情報を抽出する工程と、
前記接続先無線基地局が、抽出した前記無線関連情報の差分情報を通知するハンドオーバ要求応答信号を生成し、前記接続元無線基地局に対して送信する工程と、
前記接続元無線基地局が、受信した前記ハンドオーバ要求応答信号に基づいて、前記無線関連情報の差分情報を通知するハンドオーバ指示信号を生成し、前記移動局に対して送信する工程と、
前記移動局が、受信した前記ハンドオーバ指示信号により通知されている前記無線関連情報の差分情報によって、該移動局において保持されている無線関連情報を更新する工程とを有することを特徴とするハンドオーバ制御方法。 - 移動局が接続する無線基地局を、接続元無線基地局から切り換えられる無線基地局であって、
前記接続元無線基地局から受信したハンドオーバ要求信号に含まれる該接続元無線基地局において保持されている無線関連情報と、前記無線基地局が設定する無線関連情報との差分情報を抽出するように構成されている無線関連情報差分抽出部と、
前記無線関連情報差分抽出部によって抽出された前記無線関連情報の差分情報を通知するハンドオーバ要求応答信号を生成し、前記接続元無線基地局に対して送信するように構成されているハンドオーバ要求応答信号生成送信部とを具備することを特徴とする無線基地局。 - 接続する無線基地局を、接続元無線基地局から接続先無線基地局に切り換える移動局であって、
前記接続する無線基地局との接続に係る無線関連情報を保持するように構成されている無線関連情報保持部と、
前記接続元無線基地局から受信したハンドオーバ指示信号により通知されている無線関連情報の差分情報によって、前記無線関連情報保持部において保持されている前記無線関連情報を更新するように構成されている無線関連情報更新部とを具備し、
前記無線関連情報の差分情報は、前記接続元無線基地局において保持されている無線関連情報と、前記接続先無線基地局が設定する無線関連情報との差分であることを特徴とする移動局。
Priority Applications (9)
Application Number | Priority Date | Filing Date | Title |
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JP2007212506A JP4620093B2 (ja) | 2007-08-16 | 2007-08-16 | ハンドオーバ制御方法、無線基地局及び移動局 |
ES08827453.5T ES2581653T3 (es) | 2007-08-16 | 2008-08-15 | Método de control de traspaso, estación base inalámbrica y estación móvil |
CN200880103260.4A CN101779494B (zh) | 2007-08-16 | 2008-08-15 | 切换控制方法、无线基站和移动台 |
RU2010107792/07A RU2491766C2 (ru) | 2007-08-16 | 2008-08-15 | Способ управления хэндовером, базовая станция радиосвязи и мобильная станция |
PCT/JP2008/064622 WO2009022735A1 (ja) | 2007-08-16 | 2008-08-15 | ハンドオーバ制御方法、無線基地局及び移動局 |
BRPI0816156A BRPI0816156B1 (pt) | 2007-08-16 | 2008-08-15 | método de controle de handover, estação rádio base e estação móvel |
EP08827453.5A EP2187672B1 (en) | 2007-08-16 | 2008-08-15 | Handover control method, wireless base station, and mobile station |
KR1020107003066A KR101204739B1 (ko) | 2007-08-16 | 2008-08-15 | 핸드오버 제어방법, 무선기지국 및 이동국 |
US12/673,660 US8223696B2 (en) | 2007-08-16 | 2008-08-15 | Handover controlling method, radio base station, and mobile station |
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JP2007212506A JP4620093B2 (ja) | 2007-08-16 | 2007-08-16 | ハンドオーバ制御方法、無線基地局及び移動局 |
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JP2010239681A Division JP2011019286A (ja) | 2010-10-26 | 2010-10-26 | ハンドオーバ制御方法、無線基地局及び移動局 |
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JP2009049614A JP2009049614A (ja) | 2009-03-05 |
JP2009049614A5 JP2009049614A5 (ja) | 2010-05-06 |
JP4620093B2 true JP4620093B2 (ja) | 2011-01-26 |
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US (1) | US8223696B2 (ja) |
EP (1) | EP2187672B1 (ja) |
JP (1) | JP4620093B2 (ja) |
KR (1) | KR101204739B1 (ja) |
CN (1) | CN101779494B (ja) |
BR (1) | BRPI0816156B1 (ja) |
ES (1) | ES2581653T3 (ja) |
RU (1) | RU2491766C2 (ja) |
WO (1) | WO2009022735A1 (ja) |
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EP2426995A4 (en) * | 2009-04-27 | 2015-05-20 | Nec Corp | TRANSFER CONTROL METHOD, MOBILE COMMUNICATION SYSTEM, AND MOBILE COMMUNICATION TERMINAL |
JPWO2010150493A1 (ja) * | 2009-06-22 | 2012-12-06 | パナソニック株式会社 | 無線通信端末、無線通信基地局、及び無線通信システム |
KR101208558B1 (ko) | 2010-02-09 | 2012-12-05 | 엘지전자 주식회사 | 광대역 무선 통신 시스템에서 핸드오버 수행 중 타겟 기지국의 제어 정보를 업데이트하기 위한 방법 및 장치 |
US8885606B2 (en) | 2010-02-09 | 2014-11-11 | Lg Electronics Inc. | Apparatus and method for updating control information of a target base station during handover operation in a broadband wireless communication system |
WO2011122045A1 (ja) * | 2010-03-31 | 2011-10-06 | パナソニック株式会社 | 無線通信基地局、無線通信装置及び無線通信システム |
JP4933641B2 (ja) * | 2010-06-21 | 2012-05-16 | 株式会社エヌ・ティ・ティ・ドコモ | 移動通信方法 |
WO2014063747A1 (en) * | 2012-10-26 | 2014-05-01 | Nokia Solutions And Networks Oy | Configuration of handovers in communication systems |
CN104885516B (zh) | 2012-12-28 | 2018-12-07 | 日本电气株式会社 | 无线电通信系统、无线电站、无线电终端、通信控制方法和计算机可读介质 |
US10939329B2 (en) | 2017-03-23 | 2021-03-02 | Motorola Mobility Llc | Discarding data corresponding to a conditional handover |
WO2020202582A1 (ja) * | 2019-04-05 | 2020-10-08 | 株式会社Nttドコモ | ユーザ装置及び無線基地局 |
Citations (1)
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Patent Citations (1)
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JPH11103489A (ja) * | 1997-09-26 | 1999-04-13 | Toshiba Corp | 移動通信システムとその管理制御装置 |
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KR20100052476A (ko) | 2010-05-19 |
RU2010107792A (ru) | 2011-09-27 |
RU2491766C2 (ru) | 2013-08-27 |
CN101779494A (zh) | 2010-07-14 |
ES2581653T3 (es) | 2016-09-06 |
BRPI0816156B1 (pt) | 2019-01-08 |
EP2187672A1 (en) | 2010-05-19 |
JP2009049614A (ja) | 2009-03-05 |
EP2187672A4 (en) | 2014-01-22 |
WO2009022735A1 (ja) | 2009-02-19 |
US8223696B2 (en) | 2012-07-17 |
CN101779494B (zh) | 2015-03-25 |
BRPI0816156A2 (pt) | 2015-02-18 |
EP2187672B1 (en) | 2016-05-04 |
KR101204739B1 (ko) | 2012-11-27 |
US20110019642A1 (en) | 2011-01-27 |
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Free format text: JAPANESE INTERMEDIATE CODE: R250 |