TW576059B - Acquisition of a gated pilot - Google Patents
Acquisition of a gated pilot Download PDFInfo
- Publication number
- TW576059B TW576059B TW91118009A TW91118009A TW576059B TW 576059 B TW576059 B TW 576059B TW 91118009 A TW91118009 A TW 91118009A TW 91118009 A TW91118009 A TW 91118009A TW 576059 B TW576059 B TW 576059B
- Authority
- TW
- Taiwan
- Prior art keywords
- signal
- bit sequence
- gated
- patent application
- searching
- Prior art date
Links
- 238000000034 method Methods 0.000 claims abstract description 67
- 238000004891 communication Methods 0.000 claims description 43
- 230000006870 function Effects 0.000 claims description 25
- 238000001514 detection method Methods 0.000 claims description 10
- 230000005540 biological transmission Effects 0.000 claims description 9
- 230000002596 correlated effect Effects 0.000 claims description 7
- 230000001276 controlling effect Effects 0.000 claims description 5
- 238000009795 derivation Methods 0.000 claims 4
- PCTMTFRHKVHKIS-BMFZQQSSSA-N (1s,3r,4e,6e,8e,10e,12e,14e,16e,18s,19r,20r,21s,25r,27r,30r,31r,33s,35r,37s,38r)-3-[(2r,3s,4s,5s,6r)-4-amino-3,5-dihydroxy-6-methyloxan-2-yl]oxy-19,25,27,30,31,33,35,37-octahydroxy-18,20,21-trimethyl-23-oxo-22,39-dioxabicyclo[33.3.1]nonatriaconta-4,6,8,10 Chemical compound C1C=C2C[C@@H](OS(O)(=O)=O)CC[C@]2(C)[C@@H]2[C@@H]1[C@@H]1CC[C@H]([C@H](C)CCCC(C)C)[C@@]1(C)CC2.O[C@H]1[C@@H](N)[C@H](O)[C@@H](C)O[C@H]1O[C@H]1/C=C/C=C/C=C/C=C/C=C/C=C/C=C/[C@H](C)[C@@H](O)[C@@H](C)[C@H](C)OC(=O)C[C@H](O)C[C@H](O)CC[C@@H](O)[C@H](O)C[C@H](O)C[C@](O)(C[C@H](O)[C@H]2C(O)=O)O[C@H]2C1 PCTMTFRHKVHKIS-BMFZQQSSSA-N 0.000 claims 1
- 238000005314 correlation function Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 9
- 230000008569 process Effects 0.000 description 8
- 238000012545 processing Methods 0.000 description 6
- 238000004364 calculation method Methods 0.000 description 5
- 230000008859 change Effects 0.000 description 5
- 230000001934 delay Effects 0.000 description 5
- 230000010363 phase shift Effects 0.000 description 5
- 238000001228 spectrum Methods 0.000 description 5
- 230000000875 corresponding effect Effects 0.000 description 3
- 238000013461 design Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000001360 synchronised effect Effects 0.000 description 3
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 238000003491 array Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000036039 immunity Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000009897 systematic effect Effects 0.000 description 1
- 230000029305 taxis Effects 0.000 description 1
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
- H04B1/69—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
-
- 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
- H04B1/7085—Synchronisation aspects using a code tracking loop, e.g. a delay-locked loop
-
- 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
-
- 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
- H04B1/70735—Code identification
-
- 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
- H04B1/709—Correlator structure
-
- 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
- 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
- H04B2201/70702—Intercell-related aspects
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Mobile Radio Communication Systems (AREA)
- Synchronisation In Digital Transmission Systems (AREA)
- Circuits Of Receivers In General (AREA)
- Burglar Alarm Systems (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US09/927,869 US6795489B2 (en) | 2001-08-09 | 2001-08-09 | Acquisition of a gated pilot |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| TW576059B true TW576059B (en) | 2004-02-11 |
Family
ID=25455382
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| TW91118009A TW576059B (en) | 2001-08-09 | 2002-08-09 | Acquisition of a gated pilot |
Country Status (9)
| Country | Link |
|---|---|
| US (2) | US6795489B2 (enExample) |
| EP (1) | EP1425862B1 (enExample) |
| JP (2) | JP4184267B2 (enExample) |
| KR (1) | KR101017547B1 (enExample) |
| CN (1) | CN1539209A (enExample) |
| AT (1) | ATE386371T1 (enExample) |
| DE (1) | DE60225025T2 (enExample) |
| TW (1) | TW576059B (enExample) |
| WO (1) | WO2003015307A2 (enExample) |
Families Citing this family (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6813478B2 (en) * | 2001-02-12 | 2004-11-02 | Qualcomm Inc | Method and apparatus for searching a gated pilot |
| US6795489B2 (en) * | 2001-08-09 | 2004-09-21 | Qualcomm Inc. | Acquisition of a gated pilot |
| US7406102B2 (en) | 2002-07-03 | 2008-07-29 | Freescale Semiconductor, Inc. | Multi-mode method and apparatus for performing digital modulation and demodulation |
| US7760765B2 (en) * | 2003-05-31 | 2010-07-20 | Qualcomm, Incorporated | System and method for the reacquisition of a gated pilot |
| US7092353B2 (en) * | 2003-10-17 | 2006-08-15 | Qualcomm Incorporated | Carrier search methods and apparatus |
| KR100560386B1 (ko) * | 2003-12-17 | 2006-03-13 | 한국전자통신연구원 | 무선 통신 시스템의 상향 링크에서 코히어런트 검출을위한 직교주파수 분할 다중 접속 방식의 송수신 장치 및그 방법 |
| US8027372B2 (en) * | 2004-06-18 | 2011-09-27 | Qualcomm Incorporated | Signal acquisition in a wireless communication system |
| US8738056B2 (en) * | 2006-05-22 | 2014-05-27 | Qualcomm Incorporation | Signal acquisition in a wireless communication system |
| US8929353B2 (en) | 2007-05-09 | 2015-01-06 | Qualcomm Incorporated | Preamble structure and acquisition for a wireless communication system |
| CN101467413B (zh) * | 2006-06-13 | 2013-08-21 | 高通股份有限公司 | 用于在无线通信系统中发送和接收导频的方法和装置 |
| JP2009166550A (ja) | 2008-01-11 | 2009-07-30 | Mitsubishi Electric Corp | 車載機器遠隔制御システムおよび車載機器遠隔制御方法 |
| US8165099B2 (en) * | 2008-12-18 | 2012-04-24 | Telefonaktiebolaget Lm Ericsson | Continuous packet connectivity (CPC) scheduler |
| US8625572B2 (en) * | 2008-12-19 | 2014-01-07 | Nokia Corporation | Synchronization indication in networks |
| US10097259B2 (en) | 2014-12-31 | 2018-10-09 | Hughes Network Systems, Llc | Satellite receiver doppler compensation using resampled satellite signals |
Family Cites Families (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5471497A (en) | 1993-11-01 | 1995-11-28 | Zehavi; Ephraim | Method and apparatus for variable rate signal transmission in a spread spectrum communication system using coset coding |
| ATE277458T1 (de) | 1994-07-29 | 2004-10-15 | Qualcomm Inc | Verfahren und gerät zum ausführen der kodeerfassung in einem cdma übertragungssystem |
| JP3376224B2 (ja) | 1996-10-23 | 2003-02-10 | 株式会社エヌ・ティ・ティ・ドコモ | Ｄｓ−ｃｄｍａ基地局間非同期セルラ方式における初期同期方法および受信機 |
| US6157631A (en) | 1998-01-07 | 2000-12-05 | Motorola, Inc. | Method and system for generating and using synchronized and unsynchronized spread spectrum signals in a cellular communications system |
| JP2911117B1 (ja) | 1998-02-09 | 1999-06-23 | 株式会社ワイ・アール・ピー移動通信基盤技術研究所 | Ｒａｋｅ受信機 |
| US6229842B1 (en) | 1998-07-16 | 2001-05-08 | Telefonaktiebolaget Lm Ericsson (Publ) | Adaptive path selection threshold setting for DS-CDMA receivers |
| JP2000078110A (ja) | 1998-08-31 | 2000-03-14 | Mitsubishi Electric Corp | Ｒａｋｅ受信機，無線受信装置およびｒａｋｅ受信機のパス検出方法 |
| FR2786966A1 (fr) | 1998-12-08 | 2000-06-09 | Koninkl Philips Electronics Nv | Recepteur, systeme de telecommunications cdma et procede de synchronisation d'un recepteur avec une station d'emission d'un tel systeme |
| JP3320667B2 (ja) * | 1998-12-21 | 2002-09-03 | 株式会社東芝 | スペクトラム拡散無線通信装置 |
| JP2000307474A (ja) | 1999-04-20 | 2000-11-02 | Advantest Corp | Ｃｄｍａ通信方式の変調精度測定装置および測定方法 |
| KR100369791B1 (ko) | 1999-04-29 | 2003-01-29 | 삼성전자 주식회사 | 비동기 방식의 부호분할다중접속 통신시스템의 동기장치및 방법 |
| BR0011085A (pt) | 1999-05-31 | 2002-03-19 | Samsung Electronics Co Ltd | Aparelho e método para transmissão por portal em sistema de comunicação cdma |
| US6363060B1 (en) | 1999-06-30 | 2002-03-26 | Qualcomm Incorporated | Method and apparatus for fast WCDMA acquisition |
| US6487415B1 (en) | 1999-07-19 | 2002-11-26 | Lucent Technologies Inc. | Method for initiating call blocking based upon pilot fraction |
| US6542743B1 (en) | 1999-08-31 | 2003-04-01 | Qualcomm, Incorporated | Method and apparatus for reducing pilot search times utilizing mobile station location information |
| ATE446623T1 (de) | 1999-11-03 | 2009-11-15 | Qualcomm Inc | Synchronisierte pilotreferenzübertragung für ein drahtloses kommunikationssystem |
| US7065129B2 (en) * | 2001-06-29 | 2006-06-20 | Qualcomm, Inc. | Acquisition of a gated pilot by avoiding partial correlation peaks |
| US6795489B2 (en) * | 2001-08-09 | 2004-09-21 | Qualcomm Inc. | Acquisition of a gated pilot |
-
2001
- 2001-08-09 US US09/927,869 patent/US6795489B2/en not_active Expired - Fee Related
-
2002
- 2002-08-08 EP EP02768494A patent/EP1425862B1/en not_active Expired - Lifetime
- 2002-08-08 AT AT02768494T patent/ATE386371T1/de not_active IP Right Cessation
- 2002-08-08 WO PCT/US2002/025470 patent/WO2003015307A2/en not_active Ceased
- 2002-08-08 CN CNA028155300A patent/CN1539209A/zh active Pending
- 2002-08-08 KR KR1020047002012A patent/KR101017547B1/ko not_active Expired - Fee Related
- 2002-08-08 DE DE60225025T patent/DE60225025T2/de not_active Expired - Lifetime
- 2002-08-08 JP JP2003520106A patent/JP4184267B2/ja not_active Expired - Fee Related
- 2002-08-09 TW TW91118009A patent/TW576059B/zh active
-
2004
- 2004-06-21 US US10/873,431 patent/US7602840B2/en not_active Expired - Fee Related
-
2008
- 2008-06-19 JP JP2008160465A patent/JP4335959B2/ja not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| KR101017547B1 (ko) | 2011-02-28 |
| US20040228308A1 (en) | 2004-11-18 |
| ATE386371T1 (de) | 2008-03-15 |
| JP4335959B2 (ja) | 2009-09-30 |
| WO2003015307A3 (en) | 2003-08-07 |
| JP4184267B2 (ja) | 2008-11-19 |
| EP1425862B1 (en) | 2008-02-13 |
| KR20040017859A (ko) | 2004-02-27 |
| WO2003015307A2 (en) | 2003-02-20 |
| JP2004538711A (ja) | 2004-12-24 |
| US6795489B2 (en) | 2004-09-21 |
| DE60225025T2 (de) | 2008-09-04 |
| US20030031144A1 (en) | 2003-02-13 |
| JP2009010950A (ja) | 2009-01-15 |
| US7602840B2 (en) | 2009-10-13 |
| DE60225025D1 (de) | 2008-03-27 |
| EP1425862A2 (en) | 2004-06-09 |
| CN1539209A (zh) | 2004-10-20 |
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