BR9704560A - Processo de e aparelho para aquisição de canal piloto - Google Patents
Processo de e aparelho para aquisição de canal pilotoInfo
- Publication number
- BR9704560A BR9704560A BR9704560A BR9704560A BR9704560A BR 9704560 A BR9704560 A BR 9704560A BR 9704560 A BR9704560 A BR 9704560A BR 9704560 A BR9704560 A BR 9704560A BR 9704560 A BR9704560 A BR 9704560A
- Authority
- BR
- Brazil
- Prior art keywords
- pilot channel
- channel acquisition
- apparatus process
- acquisition
- pilot
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/76—Pilot transmitters or receivers for control of transmission or for equalising
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/69—Spread spectrum techniques
- H04B1/707—Spread spectrum techniques using direct sequence modulation
- H04B1/7073—Synchronisation aspects
- H04B1/7075—Synchronisation aspects with code phase acquisition
- H04B1/70751—Synchronisation aspects with code phase acquisition using partial detection
- H04B1/70752—Partial correlation
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/69—Spread spectrum techniques
- H04B1/707—Spread spectrum techniques using direct sequence modulation
- H04B1/7073—Synchronisation aspects
- H04B1/7075—Synchronisation aspects with code phase acquisition
- H04B1/70755—Setting of lock conditions, e.g. threshold
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/69—Spread spectrum techniques
- H04B1/707—Spread spectrum techniques using direct sequence modulation
- H04B1/7073—Synchronisation aspects
- H04B1/7075—Synchronisation aspects with code phase acquisition
- H04B1/70756—Jumping within the code, i.e. masking or slewing
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/69—Spread spectrum techniques
- H04B1/707—Spread spectrum techniques using direct sequence modulation
- H04B1/7073—Synchronisation aspects
- H04B1/7075—Synchronisation aspects with code phase acquisition
- H04B1/7077—Multi-step acquisition, e.g. multi-dwell, coarse-fine or validation
- H04B1/70775—Multi-dwell schemes, i.e. multiple accumulation times
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/69—Spread spectrum techniques
- H04B1/707—Spread spectrum techniques using direct sequence modulation
- H04B1/7097—Interference-related aspects
- H04B1/711—Interference-related aspects the interference being multi-path interference
- H04B1/7115—Constructive combining of multi-path signals, i.e. RAKE receivers
- H04B1/7117—Selection, re-selection, allocation or re-allocation of paths to fingers, e.g. timing offset control of allocated fingers
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/24—Radio transmission systems, i.e. using radiation field for communication between two or more posts
- H04B7/26—Radio transmission systems, i.e. using radiation field for communication between two or more posts at least one of which is mobile
-
- 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
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B2201/00—Indexing scheme relating to details of transmission systems not covered by a single group of H04B3/00 - H04B13/00
- H04B2201/69—Orthogonal indexing scheme relating to spread spectrum techniques in general
- H04B2201/707—Orthogonal indexing scheme relating to spread spectrum techniques in general relating to direct sequence modulation
- H04B2201/70701—Orthogonal indexing scheme relating to spread spectrum techniques in general relating to direct sequence modulation featuring pilot assisted reception
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/34—Reselection control
- H04W36/36—Reselection control by user or terminal equipment
- H04W36/362—Conditional handover
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/50—Allocation or scheduling criteria for wireless resources
- H04W72/54—Allocation or scheduling criteria for wireless resources based on quality criteria
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Mobile Radio Communication Systems (AREA)
- Radio Relay Systems (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US08/706,150 US5889768A (en) | 1996-08-30 | 1996-08-30 | Method of and apparatus for pilot channel acquisition |
Publications (1)
Publication Number | Publication Date |
---|---|
BR9704560A true BR9704560A (pt) | 1998-11-03 |
Family
ID=24836411
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BR9704560A BR9704560A (pt) | 1996-08-30 | 1997-08-29 | Processo de e aparelho para aquisição de canal piloto |
Country Status (8)
Country | Link |
---|---|
US (1) | US5889768A (pt) |
JP (1) | JP4036927B2 (pt) |
KR (1) | KR100269754B1 (pt) |
CN (1) | CN1183011A (pt) |
BR (1) | BR9704560A (pt) |
CA (1) | CA2212757A1 (pt) |
GB (1) | GB2316836B (pt) |
MX (1) | MX9706516A (pt) |
Families Citing this family (70)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FI964707A (fi) * | 1996-11-26 | 1998-05-27 | Nokia Telecommunications Oy | Menetelmä kuormituksen kontrolloimiseksi ja radiojärjestelmä |
KR100223370B1 (ko) * | 1996-12-19 | 1999-10-15 | 윤종용 | 이동 통신시스템에서 채널 절환 방법 |
USRE39177E1 (en) * | 1997-01-29 | 2006-07-11 | Qualcomm, Inc. | Method and apparatus for performing soft hand-off in a wireless communication system |
US6151502A (en) * | 1997-01-29 | 2000-11-21 | Qualcomm Incorporated | Method and apparatus for performing soft hand-off in a wireless communication system |
US6724738B1 (en) * | 1997-02-27 | 2004-04-20 | Motorola Inc. | Method and apparatus for acquiring a pilot signal in a CDMA receiver |
GB2364487B (en) * | 1997-02-27 | 2002-03-13 | Motorola Inc | Method and apparatus for acquiring a pilot signal in a CDMA receiver |
US6539050B1 (en) * | 1997-06-26 | 2003-03-25 | Hughes Electronics Corporation | Method for transmitting wideband signals via a communication system adapted for narrow-band signal transmission |
US6510147B1 (en) | 1997-07-15 | 2003-01-21 | Hughes Electronics Corporation | Method and apparatus for orthogonally overlaying variable chip rate spread spectrum signals |
US6396822B1 (en) * | 1997-07-15 | 2002-05-28 | Hughes Electronics Corporation | Method and apparatus for encoding data for transmission in a communication system |
KR100265584B1 (ko) * | 1997-07-22 | 2000-09-15 | 정태기 | 이동통신에서의 유휴 핸드오프 제어방법 |
US6515977B2 (en) * | 1997-11-05 | 2003-02-04 | Lucent Technologies Inc. | De-assigning signals from the fingers of a rake receiver |
US6072807A (en) * | 1997-12-09 | 2000-06-06 | Lucent Technologies, Inc. | Searching for signals to assign to the fingers of a rake receiver |
JP3793632B2 (ja) * | 1997-12-18 | 2006-07-05 | 松下電器産業株式会社 | セルサーチ方法及び移動局装置 |
US6269075B1 (en) * | 1998-01-26 | 2001-07-31 | Nokia Mobile Phones Limited | Finger assignment in a CDMA rake receiver |
US6101173A (en) * | 1998-03-16 | 2000-08-08 | Qualcomm Incorporated | Adaptive reacquisition time in a slotted paging environment |
US6252861B1 (en) * | 1998-03-26 | 2001-06-26 | Lucent Technologies, Inc. | Methods and apparatus for interfrequency handoff in a wireless communication system |
US6119005A (en) * | 1998-05-27 | 2000-09-12 | Lucent Technologies Inc. | System for automated determination of handoff neighbor list for cellular communication systems |
JP3097664B2 (ja) | 1998-06-09 | 2000-10-10 | 日本電気株式会社 | Cdma通信のベ−スバンド処理回路 |
KR100264787B1 (ko) | 1998-06-15 | 2000-09-01 | 김영환 | 이동통신 시스템의 핸드오프 제어방법 |
US6285664B1 (en) * | 1998-09-08 | 2001-09-04 | Lucent Technologies, Inc. | Method and apparatus for estimating pilot coverages |
US6119010A (en) * | 1998-10-13 | 2000-09-12 | Motorola, Inc. | Method and apparatus for adjusting channel powers in a wireless communication system based on a predicted mobile location |
JP3298542B2 (ja) * | 1999-03-12 | 2002-07-02 | 日本電気株式会社 | 相関器 |
US7012906B1 (en) * | 1999-03-15 | 2006-03-14 | Lg Information & Communications, Ltd. | Pilot signals for synchronization and/or channel estimation |
US6721299B1 (en) * | 1999-03-15 | 2004-04-13 | Lg Information & Communications, Ltd. | Pilot signals for synchronization and/or channel estimation |
KR100294711B1 (ko) * | 1999-03-15 | 2001-07-12 | 서평원 | 최적의 파일럿 심볼을 이용한 프레임 동기 방법 |
US6791960B1 (en) | 1999-03-15 | 2004-09-14 | Lg Information And Communications, Ltd. | Pilot signals for synchronization and/or channel estimation |
US7496132B2 (en) * | 1999-03-15 | 2009-02-24 | Kg Electronics Inc. | Pilot signals for synchronization and/or channel estimation |
US7643540B2 (en) * | 1999-03-15 | 2010-01-05 | Lg Electronics Inc. | Pilot signals for synchronization and/or channel estimation |
US6351486B1 (en) * | 1999-05-25 | 2002-02-26 | Conexant Systems, Inc. | Accelerated selection of a base station in a wireless communication system |
US7035238B1 (en) * | 1999-06-04 | 2006-04-25 | Lucent Technologies Inc. | Code assignment in a CDMA wireless system |
US6480472B1 (en) * | 1999-07-21 | 2002-11-12 | Qualcomm Incorporated | Mobile station supervision of the forward dedicated control channel when in the discontinuous transmission mode |
JP3438669B2 (ja) | 1999-09-14 | 2003-08-18 | 日本電気株式会社 | 移動通信端末装置及びその制御方法並びにその制御プログラムを記録した記録媒体 |
WO2001043474A1 (fr) * | 1999-12-13 | 2001-06-14 | Matsushita Electric Industrial Co., Ltd. | Terminal de communication et procede de communication sans fil |
US20020137513A1 (en) * | 1999-12-13 | 2002-09-26 | Koichi Aihara | Communication terminal apparatus and radio communication method |
DE60045872D1 (de) * | 1999-12-17 | 2011-06-01 | St Ericsson Sa | Verfahren und gerät zur steuerung von mehrwegsignalen |
US7260620B1 (en) | 2000-01-05 | 2007-08-21 | Cisco Technology, Inc. | System for selecting the operating frequency of a communication device in a wireless network |
US6732163B1 (en) | 2000-01-05 | 2004-05-04 | Cisco Technology, Inc. | System for selecting the operating frequency of a communication device in a wireless network |
US6594493B1 (en) * | 2000-02-09 | 2003-07-15 | Lucent Technologies Inc. | Paging arrangement for wireless communications |
US7224719B1 (en) * | 2000-03-31 | 2007-05-29 | Qualcomm, Incorporated | Fast acquisition of a pilot signal in a wireless communication device |
AU2000250578A1 (en) * | 2000-06-05 | 2001-12-17 | Linkair Communications. Inc. | A method on cell site selection in a cellular system with interference free window |
US20020060998A1 (en) * | 2000-11-22 | 2002-05-23 | Hunzinger Jason F. | CDMA search processing load reduction |
US20020077125A1 (en) * | 2000-12-20 | 2002-06-20 | Hunzinger Jason F. | Efficient CDMA earliest phase offset search for geo-location |
US7027485B2 (en) * | 2001-02-21 | 2006-04-11 | Koninklijke Philips Electronics N.V. | Signal discriminator for a spread spectrum system |
US7068707B2 (en) * | 2001-03-08 | 2006-06-27 | Qualcomm, Inc. | Method and apparatus for tracking signals in a wireless communication system |
JP3637884B2 (ja) * | 2001-06-01 | 2005-04-13 | ソニー株式会社 | 逆拡散装置、伝播路推定装置、受信装置ならびに干渉抑圧装置、逆拡散、伝播路推定、受信および干渉抑圧方法、該プログラムおよび該プログラムを記録した記録媒体 |
US7065129B2 (en) | 2001-06-29 | 2006-06-20 | Qualcomm, Inc. | Acquisition of a gated pilot by avoiding partial correlation peaks |
US7061971B2 (en) * | 2002-07-11 | 2006-06-13 | Qualcomm Incorporated | Method and apparatus for diversity searching and demodulator assignment in a wireless communication system |
US6873826B2 (en) * | 2002-08-06 | 2005-03-29 | Motorola, Inc. | Method and mobile station for reporting multi-path signals based on minimum separation |
KR100541341B1 (ko) * | 2002-09-11 | 2006-01-10 | 주식회사 엠에스피테크놀로지 | 이동정보단말기의 위치 추적 정보 획득 방법 |
US6795486B2 (en) | 2002-09-23 | 2004-09-21 | Thomson Licensing S.A. | Variable-length correlator for spread-spectrum communications |
JP2005020458A (ja) * | 2003-06-26 | 2005-01-20 | Nec Corp | 通信装置及び通信システム及び通信装置のセクタ選択方法 |
US7907946B2 (en) * | 2003-10-15 | 2011-03-15 | Motorola, Inc. | Circuit and method for acquiring a more-preferred system identification (SID) element |
US20050085230A1 (en) * | 2003-10-16 | 2005-04-21 | Motorola, Inc. | Circuit and method for producing a pilot strength measurement message |
US7433331B2 (en) * | 2003-10-20 | 2008-10-07 | Motorola, Inc. | Circuit and method for adapting to reverse link limited channels |
US7403557B2 (en) * | 2004-07-27 | 2008-07-22 | Nokia Corporation | Apparatus and method for hybrid traffic and pilot signal quality determination of finger lock status of rake receiver correlators |
US7693521B1 (en) * | 2004-08-04 | 2010-04-06 | Sprint Spectrum L.P. | Method and system for mobile station handoff |
BRPI0520024B1 (pt) * | 2005-02-07 | 2018-11-21 | Telefonaktiebolaget Lm Ericsson (Publ) | métodos e aparelhos para suportar seleção de célula de rádio para um terminal de rádio circundado por várias células de rádio e para suportar handover para um terminal de rádio circundado por várias células de rádio |
US7302265B1 (en) | 2005-03-16 | 2007-11-27 | Sprint Spectrum L.P. | Method of selecting carrier frequency for call origination |
US8339930B2 (en) * | 2005-05-16 | 2012-12-25 | Qualcomm Incorporated | Pilot transmission and channel estimation with pilot weighting |
KR20070036379A (ko) * | 2005-09-29 | 2007-04-03 | 삼성전자주식회사 | 이동 통신 시스템에서 이동 단말의 셋트 관리 방법과 이를이용한 파일럿 채널 탐색기 |
KR100811170B1 (ko) * | 2006-06-28 | 2008-03-07 | 엔에이치엔(주) | 바이럴 트래킹 및 과금 방법과 상기 방법을 수행하는바이럴 시스템 |
US7596461B2 (en) * | 2007-07-06 | 2009-09-29 | Cisco Technology, Inc. | Measurement of air quality in wireless networks |
US7983222B2 (en) * | 2007-09-07 | 2011-07-19 | Microsoft Corporation | Wireless channel selection techniques and devices |
US8305971B2 (en) * | 2009-01-13 | 2012-11-06 | Cisco Technology, Inc. | Utilizing persistent interference information for radio channel selection |
EP2237469B1 (en) * | 2009-04-03 | 2018-10-31 | Telefonaktiebolaget LM Ericsson (publ) | Method and device for measuring a received signal power in a mobile communication system |
US20110075630A1 (en) * | 2009-09-25 | 2011-03-31 | Eilon Riess | Enabling inter frequency assignment scanning while remaining at one frequency |
US9363738B2 (en) | 2011-12-30 | 2016-06-07 | Qualcomm Incorporated | Apparatus and method for dynamic pilot acquisition in a wireless communication system |
CN103841613B (zh) * | 2012-11-23 | 2017-10-27 | 京信通信***(中国)有限公司 | 一种小区切换方法及装置 |
GB2528499B (en) | 2014-07-24 | 2021-03-31 | Advanced Risc Mach Ltd | Correlation determination early termination |
KR101672136B1 (ko) * | 2015-07-03 | 2016-11-03 | 세종대학교산학협력단 | 상관 길이를 이용한 초기 동기 획득 방법 및 그 장치 |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5101501A (en) * | 1989-11-07 | 1992-03-31 | Qualcomm Incorporated | Method and system for providing a soft handoff in communications in a cdma cellular telephone system |
US5109390A (en) * | 1989-11-07 | 1992-04-28 | Qualcomm Incorporated | Diversity receiver in a cdma cellular telephone system |
US5267261A (en) * | 1992-03-05 | 1993-11-30 | Qualcomm Incorporated | Mobile station assisted soft handoff in a CDMA cellular communications system |
US5392287A (en) * | 1992-03-05 | 1995-02-21 | Qualcomm Incorporated | Apparatus and method for reducing power consumption in a mobile communications receiver |
EP0624994B1 (en) * | 1993-05-12 | 2000-04-05 | Ntt Mobile Communications Network Inc. | Hand-off method and mobile station for spread spectrum communications system |
US5490165A (en) * | 1993-10-28 | 1996-02-06 | Qualcomm Incorporated | Demodulation element assignment in a system capable of receiving multiple signals |
JP3040481B2 (ja) * | 1994-07-29 | 2000-05-15 | クゥアルコム・インコーポレイテッド | Cdma通信システムのサーチ獲得を行う改良された方法および装置 |
US5577022A (en) * | 1994-11-22 | 1996-11-19 | Qualcomm Incorporated | Pilot signal searching technique for a cellular communications system |
US5691974A (en) * | 1995-01-04 | 1997-11-25 | Qualcomm Incorporated | Method and apparatus for using full spectrum transmitted power in a spread spectrum communication system for tracking individual recipient phase, time and energy |
-
1996
- 1996-08-30 US US08/706,150 patent/US5889768A/en not_active Expired - Lifetime
-
1997
- 1997-08-12 CA CA002212757A patent/CA2212757A1/en not_active Abandoned
- 1997-08-18 GB GB9717381A patent/GB2316836B/en not_active Expired - Fee Related
- 1997-08-20 JP JP23783697A patent/JP4036927B2/ja not_active Expired - Lifetime
- 1997-08-27 MX MX9706516A patent/MX9706516A/es unknown
- 1997-08-29 KR KR1019970042560A patent/KR100269754B1/ko not_active IP Right Cessation
- 1997-08-29 BR BR9704560A patent/BR9704560A/pt active Search and Examination
- 1997-08-29 CN CN97117999A patent/CN1183011A/zh active Pending
Also Published As
Publication number | Publication date |
---|---|
JP4036927B2 (ja) | 2008-01-23 |
GB2316836B (en) | 1998-10-28 |
CN1183011A (zh) | 1998-05-27 |
GB2316836A (en) | 1998-03-04 |
US5889768A (en) | 1999-03-30 |
MX9706516A (es) | 1998-02-28 |
GB9717381D0 (en) | 1997-10-22 |
CA2212757A1 (en) | 1998-02-28 |
KR100269754B1 (ko) | 2000-10-16 |
JPH1098448A (ja) | 1998-04-14 |
KR19980019157A (ko) | 1998-06-05 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
FB34 | Technical and formal requirements: requirement - article 34 of industrial property law | ||
B11T | Dismissal of application maintained [chapter 11.20 patent gazette] |