JP5001428B2 - ハンドオーバの実行時期を調整する方法 - Google Patents

ハンドオーバの実行時期を調整する方法 Download PDF

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Publication number
JP5001428B2
JP5001428B2 JP2010513157A JP2010513157A JP5001428B2 JP 5001428 B2 JP5001428 B2 JP 5001428B2 JP 2010513157 A JP2010513157 A JP 2010513157A JP 2010513157 A JP2010513157 A JP 2010513157A JP 5001428 B2 JP5001428 B2 JP 5001428B2
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target
mobile device
propagation delay
serving
time
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JP2010513157A
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Japanese (ja)
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JP2010531573A5 (enExample
JP2010531573A (ja
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ムハマド カズミ，
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テレフオンアクチーボラゲット エル エム エリクソン（パブル）
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W56/00—Synchronisation arrangements
    • H04W56/0055—Synchronisation arrangements determining timing error of reception due to propagation delay
    • H04W56/0065—Synchronisation arrangements determining timing error of reception due to propagation delay using measurement of signal travel time
    • H04W56/007—Open loop measurement
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W56/00—Synchronisation arrangements
    • H04W56/0005—Synchronisation arrangements synchronizing of arrival of multiple uplinks
    • 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
    • H04W74/00—Wireless channel access
    • H04W74/08—Non-scheduled access, e.g. ALOHA
    • H04W74/0833—Random access procedures, e.g. with 4-step access

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)
JP2010513157A 2007-06-25 2008-01-03 ハンドオーバの実行時期を調整する方法 Expired - Fee Related JP5001428B2 (ja)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US94605507P 2007-06-25 2007-06-25
US60/946,055 2007-06-25
PCT/SE2008/050007 WO2009002248A1 (en) 2007-06-25 2008-01-03 Time-alignment at handover

Publications (3)

Publication Number Publication Date
JP2010531573A JP2010531573A (ja) 2010-09-24
JP2010531573A5 JP2010531573A5 (enExample) 2011-01-27
JP5001428B2 true JP5001428B2 (ja) 2012-08-15

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JP2010513157A Expired - Fee Related JP5001428B2 (ja) 2007-06-25 2008-01-03 ハンドオーバの実行時期を調整する方法

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US (1) US8774126B2 (enExample)
EP (1) EP2160860A4 (enExample)
JP (1) JP5001428B2 (enExample)
WO (1) WO2009002248A1 (enExample)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2091276B1 (en) * 2008-02-15 2011-07-06 Mitsubishi Electric R&D Centre Europe B.V. Method and a device for determining if a handover has to be excuted for a terminal
EP2248380B1 (en) 2008-09-02 2018-10-31 Commonwealth Scientific and Industrial Research Organisation Fixed multiple access wireless communication
US8693442B2 (en) 2008-09-22 2014-04-08 Blackberry Limited Multi-site MIMO cooperation in cellular network
US8380240B2 (en) * 2008-11-03 2013-02-19 Texas Instruments Incorporated Enabling coordinated multi-point reception
IL218046B (en) 2012-02-12 2018-11-29 Elta Systems Ltd An architecture for a multi-directional relay and the devices and methods of operation useful by the way
TWI481218B (zh) * 2011-11-10 2015-04-11 Ind Tech Res Inst 分散式天線系統之控制方法、裝置及系統
US20150071089A1 (en) * 2013-09-06 2015-03-12 Qualcomm Incorporated Devices and methods for decreasing awake state durations in access terminals operating in a slotted idle mode
WO2015127987A1 (en) * 2014-02-28 2015-09-03 Nokia Solutions And Networks Oy Techniques for rach (random access channel)-less synchronized handover for wireless networks
US9332466B2 (en) * 2014-03-20 2016-05-03 Qualcomm Incorporated Uplink timing advance adjustment
EP3533263A4 (en) * 2016-10-28 2020-07-01 Telefonaktiebolaget LM Ericsson (PUBL) USER DEVICE COMPENSATED TIME FORWARD
US20210314835A1 (en) * 2018-09-28 2021-10-07 Lg Electronics Inc. A cell reselection by adjusting cell reselection parameter
US11197254B2 (en) * 2018-11-01 2021-12-07 Huawei Technologies Co., Ltd. Method and apparatus for time synchronized handover
US11240773B2 (en) * 2018-12-07 2022-02-01 Google Llc Managing doppler and framing impacts in networks
EP4128908B1 (en) * 2020-04-16 2025-07-30 Sony Group Corporation Communications devices, infrastructure equipment and methods

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002538699A (ja) * 1999-02-26 2002-11-12 クゥアルコム・インコーポレイテッド 非同期ｃｄｍａ基地局と同期ｃｄｍａ基地局とのハンドオフのための方法およびシステム
US7054285B2 (en) * 2000-02-22 2006-05-30 Telefonaktiebolaget Lm Ericsson (Publ) Method and apparatus for associated signaling in a wireless communications network
DE10039967B4 (de) * 2000-08-16 2004-11-18 Siemens Ag Anpassung des Timing Advance beim synchronen Handover
US7280831B2 (en) * 2001-11-05 2007-10-09 Nokia Corporation Method for identification of base stations and for checking measurement values of an observed time difference between transmissions from base stations
US20040202119A1 (en) * 2003-04-10 2004-10-14 Edge Stephen William Base station synchronization in a wireless network
KR20050036521A (ko) * 2003-10-16 2005-04-20 삼성전자주식회사 주파수도약 직교주파수분할다중화 기반의이동통신시스템에서의 핸드오버 방법
KR100827105B1 (ko) * 2004-02-13 2008-05-02 삼성전자주식회사 광대역 무선 통신 시스템에서 고속 레인징을 통한 빠른핸드오버 수행 방법 및 장치
TW200729990A (en) 2005-12-22 2007-08-01 Interdigital Tech Corp Method and system for adjusting uplink transmission timing immediately for long term evolution handover
US7962139B2 (en) * 2006-06-20 2011-06-14 Texas Instruments Incorporated Reduction of handover latencies in a wireless communication system
US20080084849A1 (en) * 2006-10-06 2008-04-10 Interdigital Technology Corporation Autonomous timing advance adjustment during handover
US20080182579A1 (en) * 2007-01-26 2008-07-31 Industrial Technology Research Institute Methods and Systems for Handover Process in Wireless Communication Networks
US20080225796A1 (en) * 2007-03-17 2008-09-18 Qualcomm Incorporated Handover in wireless communications
US8218500B2 (en) * 2007-04-30 2012-07-10 Texas Instruments Incorporated Pre-synchronization method for hard handovers in wireless networks
US9380503B2 (en) * 2007-04-30 2016-06-28 Google Technology Holdings LLC Method and apparatus for handover in a wireless communication system
US9307464B2 (en) * 2007-06-21 2016-04-05 Sony Corporation Cellular communication system, apparatus and method for handover

Also Published As

Publication number Publication date
WO2009002248A1 (en) 2008-12-31
EP2160860A1 (en) 2010-03-10
US20110007707A1 (en) 2011-01-13
US8774126B2 (en) 2014-07-08
EP2160860A4 (en) 2014-01-08
JP2010531573A (ja) 2010-09-24

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