TWI341670B - Rf channel switching in broadcast ofdm systems - Google Patents

Rf channel switching in broadcast ofdm systems

Info

Publication number
TWI341670B
TWI341670B TW095135860A TW95135860A TWI341670B TW I341670 B TWI341670 B TW I341670B TW 095135860 A TW095135860 A TW 095135860A TW 95135860 A TW95135860 A TW 95135860A TW I341670 B TWI341670 B TW I341670B
Authority
TW
Taiwan
Prior art keywords
channel switching
ofdm systems
broadcast ofdm
broadcast
systems
Prior art date
Application number
TW095135860A
Other languages
English (en)
Other versions
TW200721722A (en
Inventor
Linbo Li
Ashok Mantravadi
Fuyun Ling
Raghuraman Krishnamoorthi
Original Assignee
Qualcomm Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Qualcomm Inc filed Critical Qualcomm Inc
Publication of TW200721722A publication Critical patent/TW200721722A/zh
Application granted granted Critical
Publication of TWI341670B publication Critical patent/TWI341670B/zh

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W48/00Access restriction; Network selection; Access point selection
    • H04W48/16Discovering, processing access restriction or access information
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B7/00Radio transmission systems, i.e. using radiation field
    • H04B7/24Radio transmission systems, i.e. using radiation field for communication between two or more posts
    • H04B7/26Radio transmission systems, i.e. using radiation field for communication between two or more posts at least one of which is mobile
    • H04B7/2625Radio transmission systems, i.e. using radiation field for communication between two or more posts at least one of which is mobile using common wave
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04JMULTIPLEX COMMUNICATION
    • H04J11/00Orthogonal multiplex systems, e.g. using WALSH codes

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Computer Security & Cryptography (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Time-Division Multiplex Systems (AREA)
TW095135860A 2005-09-27 2006-09-27 Rf channel switching in broadcast ofdm systems TWI341670B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US72150405P 2005-09-27 2005-09-27
US11/359,148 US7706288B2 (en) 2005-09-27 2006-02-21 RF channel switching in broadcast OFDM systems

Publications (2)

Publication Number Publication Date
TW200721722A TW200721722A (en) 2007-06-01
TWI341670B true TWI341670B (en) 2011-05-01

Family

ID=37726755

Family Applications (1)

Application Number Title Priority Date Filing Date
TW095135860A TWI341670B (en) 2005-09-27 2006-09-27 Rf channel switching in broadcast ofdm systems

Country Status (7)

Country Link
US (2) US7706288B2 (zh)
EP (1) EP1929809A2 (zh)
JP (2) JP5209484B2 (zh)
KR (1) KR101027587B1 (zh)
CN (1) CN101502159B (zh)
TW (1) TWI341670B (zh)
WO (1) WO2007038723A2 (zh)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7706288B2 (en) * 2005-09-27 2010-04-27 Qualcomm Incorporated RF channel switching in broadcast OFDM systems
US20080020751A1 (en) * 2005-09-27 2008-01-24 Qualcomm Incorporated Channel monitoring methods in a wireless broadcast system
US9554319B2 (en) * 2005-09-27 2017-01-24 Qualcomm Incorporated Channel handoff methods in wireless broadcast systems
US9118529B2 (en) * 2006-06-20 2015-08-25 Qualcomm Incorporated Discovery of neighbor cells
US8451807B2 (en) * 2006-12-20 2013-05-28 Honeywell International Inc. Configuration aware packet routing in an ad-hoc network
US8102756B2 (en) * 2007-07-25 2012-01-24 Qualcomm Incorporated Method and apparatus for initial acquisition of signaling parameters for a wireless communications network
US7907637B2 (en) * 2008-04-04 2011-03-15 Newport Media, Inc. Fast acquisition in mobile multimedia multicast systems
US8509325B2 (en) * 2008-07-01 2013-08-13 Qualcomm Incorporated Adaptive thresholding for OFDM channel estimation
US8874056B2 (en) * 2008-08-26 2014-10-28 Cisco Technology, Inc. Identifying channels in a communication network
US8249509B2 (en) 2008-11-24 2012-08-21 Cisco Technology, Inc. Dynamic channel estimation based on channel conditions
US20110037590A1 (en) * 2009-08-12 2011-02-17 Qualcomm Incorporated System and apparatus for delivering emergency alert messages as a service content in a broadcast network
CN102055489B (zh) * 2009-10-28 2014-07-16 博通集成电路(上海)有限公司 用于广播接收机中的搜台装置及方法
US8582455B2 (en) * 2010-05-04 2013-11-12 Qualcomm Incorporated Systems and methods for monitoring parameters of a wireless device
KR101885258B1 (ko) * 2010-05-14 2018-08-06 삼성전자주식회사 비디오 신호의 부호화 방법과 그 장치, 및 비디오 복호화 방법과 그 장치
US20140185610A1 (en) * 2013-01-03 2014-07-03 Qualcomm Incorporated Selectively patching erasures in circiut-switched calls whose frame erasure rate rises above a threshold by establishing and synchronizing a voip stream
KR101953406B1 (ko) 2014-12-05 2019-03-04 (주)엘지하우시스 창호의 단열보강구조
CN116743192A (zh) * 2022-03-02 2023-09-12 华为技术有限公司 通信方法及电子设备

Family Cites Families (81)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE59209341D1 (de) 1991-02-01 1998-07-02 Blaupunkt Werke Gmbh Verfahren zur Überbrückung von Audiosignalunterbrechungen
JPH04280510A (ja) 1991-03-08 1992-10-06 Pioneer Electron Corp Rds受信機の制御方法
EP0503202B1 (en) 1991-03-08 1997-03-05 Pioneer Electronic Corporation Method of controlling RDS receiver
JPH08317448A (ja) * 1995-05-16 1996-11-29 Nec Commun Syst Ltd 移動通信システムにおけるチャネル切替通知方式
AU715525B2 (en) * 1996-01-29 2000-02-03 Vigilant Networks Llc Packet network monitoring device
US6236365B1 (en) * 1996-09-09 2001-05-22 Tracbeam, Llc Location of a mobile station using a plurality of commercial wireless infrastructures
TW377533B (en) 1996-11-06 1999-12-21 Koninkl Philips Electronics Nv Radio receiver for receiving a main radio broadcast signal and a monolithic integrated circuit for use in such radio receiver
US5995834A (en) * 1996-12-24 1999-11-30 At&T Wireless Services, Inc. Method for controlling channel re-selection from a selected control channel to an alternative control channel
US6307849B1 (en) * 1997-09-08 2001-10-23 Qualcomm Incorporated Method and system for changing forward traffic channel power allocation during soft handoff
US6119005A (en) * 1998-05-27 2000-09-12 Lucent Technologies Inc. System for automated determination of handoff neighbor list for cellular communication systems
US6347080B2 (en) * 1998-09-09 2002-02-12 Qualcomm, Inc. Energy based communication rate detection system and method
JP2000138566A (ja) 1998-10-30 2000-05-16 Matsushita Electric Ind Co Ltd 放送受信装置
SE514049C2 (sv) * 1999-03-24 2000-12-18 Teracom Ab Metod för testmottagning av alternativa mottagningsfrekvenser
US6067290A (en) * 1999-07-30 2000-05-23 Gigabit Wireless, Inc. Spatial multiplexing in a cellular network
JP2001045393A (ja) 1999-07-30 2001-02-16 Hitachi Ltd 受信装置、受信方法並びにチューナー内蔵テレビ装置
US6542743B1 (en) 1999-08-31 2003-04-01 Qualcomm, Incorporated Method and apparatus for reducing pilot search times utilizing mobile station location information
EP1102506A1 (en) * 1999-10-22 2001-05-23 Hyundai Electronics Industries Co., Ltd. Method for performing handoff between asynchronous base station and synchronous base station
US6438117B1 (en) * 2000-01-07 2002-08-20 Qualcomm Incorporated Base station synchronization for handover in a hybrid GSM/CDMA network
WO2001067626A1 (en) 2000-03-09 2001-09-13 Motorola Inc. Method and device for acquiring channels in a wireless spread spectrum communication system
US6564062B1 (en) * 2000-06-09 2003-05-13 Denso Corporation Pilot search to determine processor loading
JP3382922B2 (ja) * 2000-07-06 2003-03-04 埼玉日本電気株式会社 移動通信システム、移動機、交換機及び移動通信方法
EP1182904A1 (en) * 2000-08-21 2002-02-27 Lucent Technologies Inc. Protection switching for duplex ATM-PON systems
US6839865B2 (en) * 2000-12-29 2005-01-04 Road Runner System and method for multicast stream failover
US6853646B2 (en) * 2001-05-02 2005-02-08 Ipr Licensing, Inc. Fast switching of forward link in wireless system
US6836514B2 (en) * 2001-07-10 2004-12-28 Motorola, Inc. Method for the detection and recovery of errors in the frame overhead of digital video decoding systems
US6665309B2 (en) * 2001-09-20 2003-12-16 Nokia Corporation Apparatus, and associated method, for generating assignment information used pursuant to channel allocation in a radio communication system
AU2002357313A1 (en) * 2001-12-21 2003-07-15 Thomson Licensing S.A. Multiple rf signal switching apparatus
ATE383045T1 (de) * 2002-02-11 2008-01-15 Siemens Ag Verfahren und entsprechende vorrichtungen zur verwaltung von funkressourcen in einem funk- kommunikationssystem
US7050803B2 (en) * 2002-04-05 2006-05-23 Telefonaktiebolaget Lm Ericsson (Publ) Method and system for optimizing cell-neighbor lists
US6993334B2 (en) * 2002-04-30 2006-01-31 Qualcomm Inc. Idle handoff with neighbor list channel replacement
US7193986B2 (en) * 2002-05-30 2007-03-20 Nortel Networks Limited Wireless network medium access control protocol
US7313398B1 (en) * 2002-08-06 2007-12-25 Sprint Spectrum L.P. System and method for handoff in a CDMA network
US8320922B2 (en) * 2002-08-07 2012-11-27 Qualcomm Incorporated Registration in a broadcast communications system
US7606205B2 (en) * 2002-10-28 2009-10-20 Nokia Corporation System and method for providing selection diversity for multicasting content
US20040081117A1 (en) * 2002-10-29 2004-04-29 Malek Charles John Method for a synchronized hand off from a cellular network to a wireless network and apparatus thereof
JP4146708B2 (ja) 2002-10-31 2008-09-10 京セラ株式会社 通信システム、無線通信端末、データ配信装置及び通信方法
JP4172580B2 (ja) * 2003-01-21 2008-10-29 ソニー・エリクソン・モバイルコミュニケーションズ株式会社 携帯型受信装置
US7783312B2 (en) * 2003-01-23 2010-08-24 Qualcomm Incorporated Data throughput improvement in IS2000 networks via effective F-SCH reduced active set pilot switching
KR100689566B1 (ko) * 2003-03-08 2007-03-02 삼성전자주식회사 광대역 무선 접속 통신 시스템에서 초기 레인징을 이용한핸드오프 시스템 및 방법
NZ524929A (en) * 2003-03-25 2005-11-25 Ind Res Ltd Method and apparatus for improving the performance of pilot symbol assisted receivers in the presence of narrowband interference
US20040192222A1 (en) * 2003-03-26 2004-09-30 Nokia Corporation System and method for semi-simultaneously coupling an antenna to transceivers
US7136680B2 (en) * 2003-03-31 2006-11-14 Motorola, Inc. Motion detecting wireless receiver and signal monitoring method therefor
US7556034B2 (en) * 2003-04-03 2009-07-07 Antonio Augusto De Miranda Grieco Self-cleaning kitchen-range and assembly couplable to a surface
JP2004320406A (ja) 2003-04-16 2004-11-11 Matsushita Electric Ind Co Ltd 地上デジタル自動選局方法
US7315967B2 (en) * 2003-07-31 2008-01-01 Terayon Communication Systems, Inc. Method and apparatus for automatic rate adaptation in a DOCSIS upstream
KR20050015119A (ko) * 2003-08-04 2005-02-21 삼성전자주식회사 광대역 무선 접속 통신 시스템에서 레인징 신호 변조 장치및 방법
US20050043045A1 (en) * 2003-08-18 2005-02-24 Lucent Technologies, Inc. Uplink timing in a wireless communications system
KR100547804B1 (ko) * 2003-08-18 2006-01-31 삼성전자주식회사 시스템간 핸드오버를 위한 이동국의 셀 탐색 방법 및 시스템
US20050044561A1 (en) * 2003-08-20 2005-02-24 Gotuit Audio, Inc. Methods and apparatus for identifying program segments by detecting duplicate signal patterns
JP4558729B2 (ja) * 2003-09-04 2010-10-06 サムスン エレクトロニクス カンパニー リミテッド 広帯域無線接続通信システムにおける移動加入者端末のドロップの発生によるサービング基地局の選択システム及び方法
GB2407003B (en) 2003-10-10 2006-08-09 Toshiba Res Europ Ltd Wireless access systems
TWI228921B (en) * 2003-10-14 2005-03-01 Realtek Semiconductor Corp Apparatus for channel scanning and method thereof
JP4186893B2 (ja) * 2003-10-16 2008-11-26 セイコーエプソン株式会社 パケット通信装置、パケット通信方法、データ受信装置およびデータ受信方法
KR20050040988A (ko) * 2003-10-29 2005-05-04 삼성전자주식회사 주파수도약 직교 주파수 분할 다중화 기반 셀룰러시스템을 위한 통신방법
KR20050045223A (ko) * 2003-11-10 2005-05-17 삼성전자주식회사 광 대역 무선 접속 통신 시스템의 셀 플래닝 방법 및 그광 대역 무선 접속 통신 시스템의 인접 기지국 파워 스캔방법
US7257421B2 (en) * 2003-11-13 2007-08-14 Motorola, Inc. Method and apparatus for controlling a cell reselection mode
EP1687929B1 (en) * 2003-11-17 2010-11-10 Quellan, Inc. Method and system for antenna interference cancellation
US8433005B2 (en) * 2004-01-28 2013-04-30 Qualcomm Incorporated Frame synchronization and initial symbol timing acquisition system and method
US8018945B2 (en) * 2004-04-29 2011-09-13 Interdigital Technology Corporation Method and apparatus for forwarding non-consecutive data blocks in enhanced uplink transmissions
KR100895184B1 (ko) * 2004-08-04 2009-04-24 삼성전자주식회사 광대역 무선 접속 시스템에서 다중 운영 프로파일 기지국간 핸드오프 방법 및 시스템
KR100744316B1 (ko) * 2004-09-21 2007-07-30 삼성전자주식회사 이동 통신 시스템에서 디지털 멀티미디어 방송서비스 수신장치 및 방법
US7974621B2 (en) * 2004-11-18 2011-07-05 Sprint Spectrum L.P. Method and apparatus for transitioning between radio link protocols in a packet-based real-time media communication system
KR100652697B1 (ko) 2004-11-19 2006-12-01 엘지전자 주식회사 Dmb기능을 구비한 휴대단말기에서 방송 중 핸드오버수행방법
KR100640472B1 (ko) * 2004-11-29 2006-10-30 삼성전자주식회사 프레임 시작 추정 장치 및 방법
JP2006165667A (ja) 2004-12-02 2006-06-22 Denso Corp 車載用無線受信装置およびプログラム
US7573851B2 (en) * 2004-12-07 2009-08-11 Adaptix, Inc. Method and system for switching antenna and channel assignments in broadband wireless networks
EP1833186A4 (en) * 2004-12-28 2010-07-07 Fujitsu Ltd WIRELESS COMMUNICATION SYSTEM
JP2006197492A (ja) 2005-01-17 2006-07-27 Victor Co Of Japan Ltd デジタル放送受信装置
US20060209837A1 (en) * 2005-03-16 2006-09-21 Lee Jai Y Method and apparatus for dynamically managing a retransmission persistence
US20060250939A1 (en) * 2005-03-28 2006-11-09 Wang Michael M Optimal timing and frequency acquisition for OFDM systems
US20060268756A1 (en) * 2005-05-03 2006-11-30 Hong Kong Applied Science And Technology Research Institute Co., Ltd. Systems and methods for efficient hand-off in wireless networks
US7573820B2 (en) * 2005-06-29 2009-08-11 Intel Corporation Techniques to control data transmission for a wireless system
WO2007014361A2 (en) 2005-07-27 2007-02-01 Qualcomm Incorporated System and method for a forward link only protocol suite
US9184898B2 (en) * 2005-08-01 2015-11-10 Google Technology Holdings LLC Channel quality indicator for time, frequency and spatial channel in terrestrial radio access network
US7508842B2 (en) * 2005-08-18 2009-03-24 Motorola, Inc. Method and apparatus for pilot signal transmission
US20070047489A1 (en) * 2005-08-26 2007-03-01 Bachl Rainer W Handoffs in wireless communications network incorporating voice over IP using shared supplemental spreading codes
US9554319B2 (en) * 2005-09-27 2017-01-24 Qualcomm Incorporated Channel handoff methods in wireless broadcast systems
US20080020751A1 (en) * 2005-09-27 2008-01-24 Qualcomm Incorporated Channel monitoring methods in a wireless broadcast system
US7706288B2 (en) * 2005-09-27 2010-04-27 Qualcomm Incorporated RF channel switching in broadcast OFDM systems
US7852801B2 (en) * 2005-09-28 2010-12-14 Qualcomm Incorporated Reducing collision probability for VoIP packets
JP5082390B2 (ja) 2006-11-03 2012-11-28 日本電気株式会社 移動通信システムにおける移動局の移動管理方法および装置

Also Published As

Publication number Publication date
WO2007038723A2 (en) 2007-04-05
JP2012016024A (ja) 2012-01-19
CN101502159B (zh) 2013-03-27
CN101502159A (zh) 2009-08-05
US7706288B2 (en) 2010-04-27
US20070070963A1 (en) 2007-03-29
TW200721722A (en) 2007-06-01
JP5209484B2 (ja) 2013-06-12
KR20080066730A (ko) 2008-07-16
KR101027587B1 (ko) 2011-04-06
EP1929809A2 (en) 2008-06-11
US8705370B2 (en) 2014-04-22
WO2007038723A3 (en) 2008-12-11
JP2009514269A (ja) 2009-04-02
US20100165851A1 (en) 2010-07-01

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