CA2150932A1 - Demodulation element assignment in a system capable of receiving multiple signals - Google Patents

Demodulation element assignment in a system capable of receiving multiple signals

Info

Publication number
CA2150932A1
CA2150932A1 CA002150932A CA2150932A CA2150932A1 CA 2150932 A1 CA2150932 A1 CA 2150932A1 CA 002150932 A CA002150932 A CA 002150932A CA 2150932 A CA2150932 A CA 2150932A CA 2150932 A1 CA2150932 A1 CA 2150932A1
Authority
CA
Canada
Prior art keywords
system capable
multiple signals
receiving multiple
demodulation element
demodulation
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
CA002150932A
Other languages
French (fr)
Other versions
CA2150932C (en
Inventor
Robert D. Ii Blakeney
Lindsay A. Weaver, Jr.
Noam A. Ziv
Paul T. Williamson
Roberto Padovani
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Qualcomm Inc
Original Assignee
Individual
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=22510656&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=CA2150932(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Individual filed Critical Individual
Publication of CA2150932A1 publication Critical patent/CA2150932A1/en
Application granted granted Critical
Publication of CA2150932C publication Critical patent/CA2150932C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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
    • H04B1/69—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
    • 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
    • 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
    • H04B1/7087—Carrier synchronisation aspects

Abstract

In a receiver having a plurality of demodulation elements (204A, 204B, 204C), a method of assigning the plurality of demodulation element to a set of available signals. A first method emphasizes diversity of transmitting devices so that power control is optimal. A second method emphasizes the maximum signal strength available to produce aggregate maximum signal strength. Both methods control the number of reassignments so that excessive data is not lost during the reassignment process. The apparatus comprises the plurality of demodulation elements (204A, 204B, 204C), at least one searcher element (202), and a controller (200).
CA002150932A 1993-10-28 1994-10-28 Demodulation element assignment in a system capable of receiving multiple signals Expired - Lifetime CA2150932C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US08/144,902 1993-10-28
US08/144,902 US5490165A (en) 1993-10-28 1993-10-28 Demodulation element assignment in a system capable of receiving multiple signals
PCT/US1994/012452 WO1995012262A1 (en) 1993-10-28 1994-10-28 Demodulation element assignment in a system capable of receiving multiple signals

Publications (2)

Publication Number Publication Date
CA2150932A1 true CA2150932A1 (en) 1995-05-04
CA2150932C CA2150932C (en) 2002-09-24

Family

ID=22510656

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002150932A Expired - Lifetime CA2150932C (en) 1993-10-28 1994-10-28 Demodulation element assignment in a system capable of receiving multiple signals

Country Status (20)

Country Link
US (1) US5490165A (en)
EP (1) EP0676107B1 (en)
JP (1) JP2938573B2 (en)
KR (1) KR100347655B1 (en)
AT (1) ATE257298T1 (en)
AU (1) AU685869B2 (en)
BR (1) BR9405888A (en)
CA (1) CA2150932C (en)
DE (1) DE69433459T2 (en)
DK (1) DK0676107T3 (en)
ES (1) ES2215166T3 (en)
FI (1) FI110295B (en)
HK (1) HK1015210A1 (en)
IL (1) IL111432A (en)
MY (1) MY114370A (en)
PT (1) PT676107E (en)
RU (1) RU2138918C1 (en)
TW (1) TW252244B (en)
WO (1) WO1995012262A1 (en)
ZA (1) ZA947841B (en)

Families Citing this family (231)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE460449B (en) * 1988-02-29 1989-10-09 Ericsson Telefon Ab L M CELL DIVIDED DIGITAL MOBILE RADIO SYSTEM AND PROCEDURE TO TRANSFER INFORMATION IN A DIGITAL CELL DIVIDED MOBILE RADIO SYSTEM
SE8802229D0 (en) 1988-06-14 1988-06-14 Ericsson Telefon Ab L M MOBILE RADIO STATION PROCEDURE
US5602834A (en) 1990-12-07 1997-02-11 Qualcomm Incorporated Linear coverage area antenna system for a CDMA communication system
ZA948134B (en) * 1993-10-28 1995-06-13 Quaqlcomm Inc Method and apparatus for performing handoff between sectors of a common base station
US6157668A (en) * 1993-10-28 2000-12-05 Qualcomm Inc. Method and apparatus for reducing the average transmit power of a base station
US5697053A (en) 1994-07-28 1997-12-09 Lucent Technologies Inc. Method of power control and cell site selection
US5710768A (en) * 1994-09-30 1998-01-20 Qualcomm Incorporated Method of searching for a bursty signal
US5784293A (en) * 1994-11-03 1998-07-21 Motorola, Inc. Apparatus and method for determining transmitted modulation symbols
KR970011690B1 (en) * 1994-11-22 1997-07-14 삼성전자 주식회사 Data receiver & transmitter of spread spectrum using pilot channel
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
JP3444001B2 (en) * 1995-02-10 2003-09-08 ソニー株式会社 Sign detection circuit
US5933787A (en) * 1995-03-13 1999-08-03 Qualcomm Incorporated Method and apparatus for performing handoff between sectors of a common base station
US5627835A (en) * 1995-04-04 1997-05-06 Oki Telecom Artificial window size interrupt reduction system for CDMA receiver
JPH08293851A (en) * 1995-04-21 1996-11-05 Sony Corp Mobile station reception device
US5764687A (en) * 1995-06-20 1998-06-09 Qualcomm Incorporated Mobile demodulator architecture for a spread spectrum multiple access communication system
US5841768A (en) * 1996-06-27 1998-11-24 Interdigital Technology Corporation Method of controlling initial power ramp-up in CDMA systems by using short codes
ZA965340B (en) 1995-06-30 1997-01-27 Interdigital Tech Corp Code division multiple access (cdma) communication system
US5577025A (en) * 1995-06-30 1996-11-19 Qualcomm Incorporated Signal acquisition in a multi-user communication system using multiple walsh channels
JPH0955715A (en) * 1995-08-11 1997-02-25 Toshiba Corp Spread spectrum radio communication device
US5862173A (en) * 1995-12-11 1999-01-19 Ericsson Inc. Re-orthogonalization of wideband CDMA signals
US5809020A (en) * 1996-03-18 1998-09-15 Motorola, Inc. Method for adaptively adjusting weighting coefficients in a cDMA radio receiver
US6233272B1 (en) 1996-03-19 2001-05-15 Yrp Mobile Telecommunications Key Technology Research Laboratories Co., Ltd. Spread spectrum communication receiver
JPH09261128A (en) * 1996-03-22 1997-10-03 Matsushita Electric Ind Co Ltd Spread spectrum communication equipment
JP3575649B2 (en) * 1996-04-02 2004-10-13 ソニー株式会社 Pilot signal detection method, pilot signal detection device and receiving device
US5930288A (en) * 1996-05-06 1999-07-27 Motorola, Inc. Time-shared lock indicator circuit and method for power control and traffic channel decoding in a radio receiver
US5754583A (en) * 1996-05-06 1998-05-19 Motorola, Inc. Communication device and method for determining finger lock status in a radio receiver
US6678311B2 (en) * 1996-05-28 2004-01-13 Qualcomm Incorporated High data CDMA wireless communication system using variable sized channel codes
US5930230A (en) * 1996-05-28 1999-07-27 Qualcomm Incorporated High data rate CDMA wireless communication system
US5737326A (en) * 1996-07-12 1998-04-07 Lucent Technologies Inc. Multi-code code division multiple access receiver
US5953382A (en) * 1996-07-17 1999-09-14 Asano; Nobuo CDMA system mobile communication receiver
US5790589A (en) * 1996-08-14 1998-08-04 Qualcomm Incorporated System and method for rapidly reacquiring a pilot channel
JP3447897B2 (en) * 1996-08-20 2003-09-16 松下電器産業株式会社 CDMA wireless communication device
US5881056A (en) * 1996-08-20 1999-03-09 Lucent Technologies Inc. Method and apparatus of a multi-code code division multiple access receiver having shared accumulator circuits
US6026115A (en) * 1996-08-23 2000-02-15 Ntt Mobile Communications Network, Inc. Rake receiver
US5889768A (en) * 1996-08-30 1999-03-30 Motorola, Inc. Method of and apparatus for pilot channel acquisition
US6160799A (en) * 1996-09-06 2000-12-12 Motorola, Inc. Method of and apparatus for pilot set maintenance
US5950131A (en) * 1996-10-29 1999-09-07 Motorola, Inc. Method and apparatus for fast pilot channel acquisition using a matched filter in a CDMA radiotelephone
JP3286189B2 (en) * 1996-11-14 2002-05-27 松下電器産業株式会社 Receiver using algorithm diversity
US5881058A (en) * 1996-11-25 1999-03-09 Motorola, Inc. Method for performing a signal search in a wireless communication system
US5854785A (en) * 1996-12-19 1998-12-29 Motorola, Inc. System method and wireless communication device for soft handoff
US5987012A (en) * 1996-12-19 1999-11-16 Motorola, Inc. Method of handing off and a wireless communication device
US5920549A (en) * 1996-12-19 1999-07-06 Motorola, Inc. Method of handing off and a wireless communication device
JPH10190528A (en) * 1996-12-25 1998-07-21 Matsushita Electric Ind Co Ltd Spread spectrum receiver
JPH10190626A (en) * 1996-12-27 1998-07-21 Matsushita Electric Ind Co Ltd Cdma reception device
JPH10200506A (en) * 1997-01-06 1998-07-31 Sony Corp Receiver, receiving method and terminal in radio system
JPH10200505A (en) * 1997-01-06 1998-07-31 Sony Corp Receiver, reception method and terminal equipment for radio system
US5940761A (en) 1997-01-15 1999-08-17 Qaulcomm Incorporated Method and apparatus for performing mobile assisted hard handoff between communication systems
US5991284A (en) 1997-02-13 1999-11-23 Qualcomm Inc. Subchannel control loop
US5999816A (en) 1997-02-18 1999-12-07 Qualcomm Incorporated Method and apparatus for performing mobile assisted hard handoff between communication systems
US6724738B1 (en) 1997-02-27 2004-04-20 Motorola Inc. Method and apparatus for acquiring a pilot signal in a CDMA receiver
US6144649A (en) * 1997-02-27 2000-11-07 Motorola, Inc. Method and apparatus for acquiring a pilot signal in a CDMA receiver
US6282232B1 (en) * 1997-04-09 2001-08-28 Spacenet, Inc. Methods and apparatus for burst-mode CDMA DSSS communications receiving systems
JP2853705B2 (en) * 1997-05-07 1999-02-03 日本電気株式会社 Spread spectrum communication receiver
JPH1141141A (en) * 1997-05-21 1999-02-12 Mitsubishi Electric Corp Spread spectrum signal receiving method and device therefor
EP0884856A3 (en) * 1997-06-09 2002-04-10 Yozan Inc. Spread spectrum communication system
US6539069B1 (en) * 1997-06-10 2003-03-25 Qualcomm, Inc. Dynamic filtering of pilot energy samples in a wireless communication system
US6122334A (en) * 1997-06-10 2000-09-19 Hughes; Robbin D. Pilot signal detection filter for a wireless communication device
US6275484B1 (en) * 1997-06-23 2001-08-14 Lucent Technologies Inc. Methods and apparatus for increasing the uplink gain for a CDMA base station
US6185199B1 (en) * 1997-07-23 2001-02-06 Qualcomm Inc. Method and apparatus for data transmission using time gated frequency division duplexing
US6345078B1 (en) 1997-07-31 2002-02-05 Lucent Technologies Inc. Finger assignment system for a multiple finger receiver and method thereof
US6145108A (en) * 1997-09-04 2000-11-07 Conexant Systems, Inc. Retransmission packet capture system within a wireless multiservice communications environment
US6285655B1 (en) 1997-09-08 2001-09-04 Qualcomm Inc. Method and apparatus for providing orthogonal spot beams, sectors, and picocells
US6078611A (en) * 1997-09-16 2000-06-20 Motorola, Inc. Rake receiver and finger management method for spread spectrum communication
US5987016A (en) * 1997-11-04 1999-11-16 Motorola, Inc. Method and apparatus for tracking a communication signal in a wireless communication system
US6269075B1 (en) * 1998-01-26 2001-07-31 Nokia Mobile Phones Limited Finger assignment in a CDMA rake receiver
US6603751B1 (en) * 1998-02-13 2003-08-05 Qualcomm Incorporated Method and system for performing a handoff in a wireless communication system, such as a hard handoff
JP2937994B1 (en) * 1998-03-04 1999-08-23 日本電気移動通信株式会社 Cellular system, mobile portable device, base station device, and optimal path detection method and device
US6396819B1 (en) 1998-03-21 2002-05-28 Richard D. Fleeter Low-cost satellite communication system
US6731622B1 (en) 1998-05-01 2004-05-04 Telefonaktiebolaget Lm Ericsson (Publ) Multipath propagation delay determining means using periodically inserted pilot symbols
DE19824218C1 (en) * 1998-05-29 2000-03-23 Ericsson Telefon Ab L M Multipath propagation delay determining device using periodically inserted pilot symbols
US6370397B1 (en) 1998-05-01 2002-04-09 Telefonaktiebolaget Lm Ericsson (Publ) Search window delay tracking in code division multiple access communication systems
US6553064B1 (en) 1998-05-07 2003-04-22 Qualcomm Incorporated Method and apparatus for performing mobile station assisted hard handoff using error correction codes
US20030194033A1 (en) 1998-05-21 2003-10-16 Tiedemann Edward G. Method and apparatus for coordinating transmission of short messages with hard handoff searches in a wireless communications system
US6212368B1 (en) 1998-05-27 2001-04-03 Ericsson Inc. Measurement techniques for diversity and inter-frequency mobile assisted handoff (MAHO)
JP3097664B2 (en) 1998-06-09 2000-10-10 日本電気株式会社 Baseband processing circuit for CDMA communication
US6249539B1 (en) 1998-06-15 2001-06-19 Qualcomm Incorporated System and method for narrowing the range of frequency uncertainty of a doppler shifted signal
CN1307756A (en) * 1998-06-23 2001-08-08 艾利森电话股份有限公司 Method and apparatus for storing and accessing different chip sequences
US6216004B1 (en) 1998-06-23 2001-04-10 Qualcomm Incorporated Cellular communication system with common channel soft handoff and associated method
US6381225B1 (en) 1998-08-27 2002-04-30 Qualcomm Incorporated System and method for resolving frequency and timing uncertainty in access transmissions in a spread spectrum communication system
US6947473B1 (en) 1998-08-28 2005-09-20 Siemens Ag Receiver and method of recovering data from radio signals
US6201827B1 (en) 1998-09-09 2001-03-13 Qualcomm Incorporated System and method for probability based lock detection
US7483699B2 (en) * 1998-09-22 2009-01-27 Qualcomm Incorporated Overhead message update with decentralized control
US6944149B1 (en) * 1998-09-24 2005-09-13 Samsung Electronics Co., Ltd. Apparatus and method or searching for PN sequence phase in multi-carrier CDMA mobile communication system
JP3031354B1 (en) 1998-09-30 2000-04-10 日本電気株式会社 CDMA receiver, multipath finger assignment method thereof, and recording medium recording control program therefor
US6560273B1 (en) 1998-10-07 2003-05-06 Ericsson Inc. Delay searcher and delay trackers interaction for new delays assignment to rake fingers
US6370183B1 (en) * 1998-10-26 2002-04-09 Nortel Networks Limited Predictive rake receiver for CDMA mobile radio systems
US6625197B1 (en) 1998-10-27 2003-09-23 Qualcomm Incorporated Method and apparatus for multipath demodulation in a code division multiple access communication system
US6373882B1 (en) 1998-11-06 2002-04-16 Telefonaktiebolaget Lm Ericsson (Publ) Motion estimator for a CDMA mobile station
JP4029237B2 (en) * 1998-11-26 2008-01-09 ソニー株式会社 Reception method and wireless communication terminal device
US6847658B1 (en) 1998-12-10 2005-01-25 Qualcomm, Incorporated Demultiplexer for channel interleaving
US6229841B1 (en) * 1998-12-11 2001-05-08 Qualcomm Incorporated Method and apparatus for energy estimation in a wireless receiver capable of receiving multiple instances of a common signal
US6130923A (en) * 1998-12-11 2000-10-10 Qualcomm Incorporated Lock detection for multipath wireless receiver
US6792273B1 (en) 1998-12-18 2004-09-14 Telefonaktiebolaget Lm Ericsson (Publ) Method and apparatus for resource reservation in a mobile radio communication system
US6278725B1 (en) * 1998-12-18 2001-08-21 Philips Electronics North America Corporation Automatic frequency control loop multipath combiner for a rake receiver
KR100288753B1 (en) * 1998-12-31 2001-05-02 윤종용 Multicarrier cdma receiver apparatus
US6587446B2 (en) 1999-02-11 2003-07-01 Qualcomm Incorporated Handoff in a wireless communication system
US6356528B1 (en) 1999-04-15 2002-03-12 Qualcomm Incorporated Interleaver and deinterleaver for use in a diversity transmission communication system
US6925067B2 (en) * 1999-04-23 2005-08-02 Qualcomm, Incorporated Configuration of overhead channels in a mixed bandwidth system
US6314130B1 (en) * 1999-04-28 2001-11-06 Dspc Technologies, Ltd. System and method for joint time tracking of multiple paths
US6452959B1 (en) * 1999-05-28 2002-09-17 Dot Wireless, Inc. Method of and apparatus for generating data sequences for use in communications
US6718170B1 (en) * 1999-07-01 2004-04-06 Qualcomm Incorporated Dynamic allocation of microprocessor resources in a wireless communication device
US6785554B1 (en) * 1999-09-15 2004-08-31 Qualcomm Incorporated Modified finger assignment algorithm for high data rate calls
US6711420B1 (en) * 1999-09-15 2004-03-23 Qualcomm, Incorporated Modified finger assignment algorithm for high data rate calls
US6606485B1 (en) 1999-10-06 2003-08-12 Qualcomm, Incorporated Candidate system search and soft handoff between frequencies in a multi-carrier mobile communication system
US6757553B1 (en) 1999-10-14 2004-06-29 Qualcomm Incorporated Base station beam sweeping method and apparatus using multiple rotating antennas
US6760366B1 (en) * 1999-11-29 2004-07-06 Qualcomm Incorporated Method and apparatus for pilot search using a matched filter
US6975670B1 (en) * 2000-10-02 2005-12-13 Koninklijke Philips Electronics N.V. Managing assigned fingers in wireless telecommunication using a finger lock mechanism
US6725016B1 (en) 2000-10-02 2004-04-20 Koninklijke Philips Electronics N.V. Method and apparatus for managing multipath signals for a receiver with multiple demodulators
KR100830741B1 (en) * 1999-12-17 2008-05-20 엔엑스피 비 브이 Method and apparatus for managing multipath signals
CN100414847C (en) * 1999-12-17 2008-08-27 Nxp股份有限公司 Method and appts for managing assigned fingers
US6754503B1 (en) 2000-10-02 2004-06-22 Koninklijke Philips Electronics Method for adaptively selecting a soft symbol for a subsequent operation a communication device
US6526090B1 (en) * 1999-12-28 2003-02-25 Texas Instruments Incorporated Demodulation element assignment for a receiver capable of simultaneously demodulating multiple spread spectrum signals
IT1314344B1 (en) * 1999-12-30 2002-12-09 Telit Mobile Terminals Spa RECEIVER METHOD AND WCDMA-UTRA / FDD TRANSMISSION SYSTEM
AU2915201A (en) * 1999-12-30 2001-07-16 Morphics Technology, Inc. A fast initial acquisition and search device for a spread spectrum communicationsystem
US20020149379A1 (en) * 2000-01-12 2002-10-17 Winfried Rauer Electronic measuring device for detecting a process variable, in particular a radar or ultrasonic filling level measuring device, and a method for operating a measuring device of this type
DE10006701C2 (en) * 2000-02-16 2002-04-11 Harman Becker Automotive Sys receiver
JP3418981B2 (en) * 2000-02-16 2003-06-23 日本電気株式会社 Spread spectrum communication synchronization acquisition circuit
US7433391B2 (en) * 2000-02-28 2008-10-07 Aeroastro, Inc. Spread-spectrum receiver with fast M-sequence transform
US7227884B2 (en) 2000-02-28 2007-06-05 Aeroastro, Inc. Spread-spectrum receiver with progressive fourier transform
US6873648B1 (en) 2000-03-02 2005-03-29 Telefonaktiebolaget L M Ericsson (Publ) Method and apparatus for fast detection of locations of path rays in a receiver having multiple time references
DE60121311T2 (en) * 2000-03-30 2007-08-30 Aeroflex Cambridge Ltd. Cambridge Technology Cerntre Melbourn, Melbourn RAKE RECEIVER AND METHOD FOR OPERATING A RAKE RECEIVER
US7224719B1 (en) * 2000-03-31 2007-05-29 Qualcomm, Incorporated Fast acquisition of a pilot signal in a wireless communication device
US6535739B1 (en) * 2000-04-07 2003-03-18 Qualcomm Incorporated Method of handoff within a telecommunications system containing digital base stations with different spectral capabilities
US6628702B1 (en) * 2000-06-14 2003-09-30 Qualcomm, Incorporated Method and apparatus for demodulating signals processed in a transmit diversity mode
US7082174B1 (en) 2000-07-24 2006-07-25 Qualcomm, Incorporated Method and apparatus for processing a modulated signal using an equalizer and a rake receiver
JP3501783B2 (en) * 2000-08-23 2004-03-02 日本電気株式会社 CDMA receiving apparatus and CDMA receiving method
US6959033B1 (en) * 2000-08-25 2005-10-25 Texas Instruments Incorporated System and method for assigning combiner channels in spread spectrum communications
GB2366970A (en) * 2000-09-14 2002-03-20 Ubinetics Ltd Rake receiver
GB0022633D0 (en) * 2000-09-15 2000-11-01 Koninkl Philips Electronics Nv Secondary station and method of operating the station
US6771691B1 (en) * 2000-09-15 2004-08-03 Texas Instruments Incorporated System and method for extracting soft symbols in direct sequence spread spectrum communications
GB0022634D0 (en) * 2000-09-15 2000-11-01 Koninkl Philips Electronics Nv Secondary station and method of operating the station
US6600777B1 (en) * 2000-09-29 2003-07-29 Qualcomm, Incorporated Assignment and deassignment of CDMA second finger
US6754252B1 (en) 2000-10-02 2004-06-22 Koninklijke Philips Electronics N.V. Method and apparatus for call drop prevention in a wireless communication system
US7613229B1 (en) * 2000-10-02 2009-11-03 St Wireless Sa Method and apparatus for combined finger management and finger lock for a multipath signals in a wireless communication system
US7443826B1 (en) * 2000-10-04 2008-10-28 Telefonaktiebolaget L M Ericsson (Publ) Method and apparatus for automatic frequency control in a CDMA receiver
US6697629B1 (en) * 2000-10-11 2004-02-24 Qualcomm, Incorporated Method and apparatus for measuring timing of signals received from multiple base stations in a CDMA communication system
US6985516B1 (en) 2000-11-27 2006-01-10 Qualcomm Incorporated Method and apparatus for processing a received signal in a communications system
US6954644B2 (en) 2000-12-04 2005-10-11 Telefonaktiebolaget Lm Ericsson (Publ) Using geographical coordinates to determine mobile station time position for synchronization during diversity handover
US6907245B2 (en) 2000-12-04 2005-06-14 Telefonaktiebolaget Lm Ericsson (Publ) Dynamic offset threshold for diversity handover in telecommunications system
US6980803B2 (en) * 2000-12-04 2005-12-27 Telefonaktiebolaget Lm Ericsson (Publ) Using statistically ascertained position for starting synchronization searcher during diversity handover
US7277471B2 (en) * 2001-01-11 2007-10-02 Qualcomm Incorporated Time-tracking for clustered demodulation elements in a spread spectrum system
JP2002290281A (en) 2001-01-16 2002-10-04 Kawasaki Steel Corp Rake receiver
US7085310B2 (en) 2001-01-29 2006-08-01 Qualcomm, Incorporated Method and apparatus for managing finger resources in a communication system
KR100508083B1 (en) * 2001-03-21 2005-08-17 삼성전자주식회사 Symbol combining device for multi-path diversity
US7489779B2 (en) * 2001-03-22 2009-02-10 Qstholdings, Llc Hardware implementation of the secure hash standard
US7400668B2 (en) * 2001-03-22 2008-07-15 Qst Holdings, Llc Method and system for implementing a system acquisition function for use with a communication device
US7653710B2 (en) 2002-06-25 2010-01-26 Qst Holdings, Llc. Hardware task manager
US6836839B2 (en) 2001-03-22 2004-12-28 Quicksilver Technology, Inc. Adaptive integrated circuitry with heterogeneous and reconfigurable matrices of diverse and adaptive computational units having fixed, application specific computational elements
US7249242B2 (en) * 2002-10-28 2007-07-24 Nvidia Corporation Input pipeline registers for a node in an adaptive computing engine
US7752419B1 (en) 2001-03-22 2010-07-06 Qst Holdings, Llc Method and system for managing hardware resources to implement system functions using an adaptive computing architecture
US7962716B2 (en) 2001-03-22 2011-06-14 Qst Holdings, Inc. Adaptive integrated circuitry with heterogeneous and reconfigurable matrices of diverse and adaptive computational units having fixed, application specific computational elements
DE10116170A1 (en) * 2001-03-31 2002-10-10 Alcatel Sa Method for operating a radio-based communication system
US6700922B2 (en) * 2001-04-09 2004-03-02 Raghu Challa System and method for acquiring a received signal in a spread spectrum device
JP3412622B2 (en) * 2001-04-18 2003-06-03 日本電気株式会社 CDMA receiver and path protection processing method
US6577678B2 (en) 2001-05-08 2003-06-10 Quicksilver Technology Method and system for reconfigurable channel coding
JP3345406B1 (en) * 2001-05-25 2002-11-18 松下電器産業株式会社 Wireless receiving apparatus and wireless receiving method
US6618434B2 (en) * 2001-05-31 2003-09-09 Quicksilver Technology, Inc. Adaptive, multimode rake receiver for dynamic search and multipath reception
US8611311B2 (en) 2001-06-06 2013-12-17 Qualcomm Incorporated Method and apparatus for canceling pilot interference in a wireless communication system
US6819931B2 (en) * 2001-07-12 2004-11-16 Qualcomm Incorporated Method and apparatus for assigning tracking elements to received signals
US7039096B2 (en) * 2001-11-16 2006-05-02 Samsung Electronics Co., Ltd. Method and system for resource sharing between demodulating paths of a rake receiver
US7130317B2 (en) * 2001-11-19 2006-10-31 Annadurai Andy P Method and circuit for de-skewing data in a communication system
US7046635B2 (en) * 2001-11-28 2006-05-16 Quicksilver Technology, Inc. System for authorizing functionality in adaptable hardware devices
US6986021B2 (en) 2001-11-30 2006-01-10 Quick Silver Technology, Inc. Apparatus, method, system and executable module for configuration and operation of adaptive integrated circuitry having fixed, application specific computational elements
US8412915B2 (en) * 2001-11-30 2013-04-02 Altera Corporation Apparatus, system and method for configuration of adaptive integrated circuitry having heterogeneous computational elements
US7602740B2 (en) * 2001-12-10 2009-10-13 Qst Holdings, Inc. System for adapting device standards after manufacture
US7088825B2 (en) * 2001-12-12 2006-08-08 Quicksilver Technology, Inc. Low I/O bandwidth method and system for implementing detection and identification of scrambling codes
US7215701B2 (en) * 2001-12-12 2007-05-08 Sharad Sambhwani Low I/O bandwidth method and system for implementing detection and identification of scrambling codes
US7403981B2 (en) * 2002-01-04 2008-07-22 Quicksilver Technology, Inc. Apparatus and method for adaptive multimedia reception and transmission in communication environments
GB2385498A (en) * 2002-02-13 2003-08-20 Pa Consulting Services Adjustable baseband processing of telecommunications signals
US6785322B1 (en) * 2002-04-12 2004-08-31 Interdigital Technology Corporation Node-B/base station rake finger pooling
TW201002122A (en) 2002-04-12 2010-01-01 Interdigital Tech Corp Access burst detector correlator pool
US7660984B1 (en) 2003-05-13 2010-02-09 Quicksilver Technology Method and system for achieving individualized protected space in an operating system
US7328414B1 (en) * 2003-05-13 2008-02-05 Qst Holdings, Llc Method and system for creating and programming an adaptive computing engine
US7061971B2 (en) * 2002-07-11 2006-06-13 Qualcomm Incorporated Method and apparatus for diversity searching and demodulator assignment in a wireless communication system
US7340017B1 (en) * 2002-07-30 2008-03-04 National Semiconductor Corporation System and method for finger management in a rake receiver
US6873826B2 (en) * 2002-08-06 2005-03-29 Motorola, Inc. Method and mobile station for reporting multi-path signals based on minimum separation
US8108656B2 (en) 2002-08-29 2012-01-31 Qst Holdings, Llc Task definition for specifying resource requirements
KR100929081B1 (en) * 2002-09-10 2009-11-30 삼성전자주식회사 Apparatus and method for tracking pseudonoise sequence phase of pilot signal in mobile terminal
US8504054B2 (en) 2002-09-10 2013-08-06 Qualcomm Incorporated System and method for multilevel scheduling
US7630321B2 (en) 2002-09-10 2009-12-08 Qualcomm Incorporated System and method for rate assignment
US6985727B2 (en) * 2002-09-12 2006-01-10 Qualcomm Incorporated Method and apparatus for optimizing search rate and finger assignment rate
US7937591B1 (en) 2002-10-25 2011-05-03 Qst Holdings, Llc Method and system for providing a device which can be adapted on an ongoing basis
US8276135B2 (en) 2002-11-07 2012-09-25 Qst Holdings Llc Profiling of software and circuit designs utilizing data operation analyses
US7225301B2 (en) * 2002-11-22 2007-05-29 Quicksilver Technologies External memory controller node
US7099623B2 (en) * 2002-12-20 2006-08-29 Qualcomm Incorporated Managing searcher and tracker resources in a wireless communication device
US6996763B2 (en) * 2003-01-10 2006-02-07 Qualcomm Incorporated Operation of a forward link acknowledgement channel for the reverse link data
US8165148B2 (en) 2003-01-13 2012-04-24 Qualcomm Incorporated System and method for rate assignment
US7768974B2 (en) * 2003-02-03 2010-08-03 Alcatel-Lucent Method and arrangement for generating pilot beacons in wireless communication systems
US7155236B2 (en) 2003-02-18 2006-12-26 Qualcomm Incorporated Scheduled and autonomous transmission and acknowledgement
US8391249B2 (en) * 2003-02-18 2013-03-05 Qualcomm Incorporated Code division multiplexing commands on a code division multiplexed channel
US20040160922A1 (en) 2003-02-18 2004-08-19 Sanjiv Nanda Method and apparatus for controlling data rate of a reverse link in a communication system
US7660282B2 (en) * 2003-02-18 2010-02-09 Qualcomm Incorporated Congestion control in a wireless data network
US7215930B2 (en) * 2003-03-06 2007-05-08 Qualcomm, Incorporated Method and apparatus for providing uplink signal-to-noise ratio (SNR) estimation in a wireless communication
US8705588B2 (en) 2003-03-06 2014-04-22 Qualcomm Incorporated Systems and methods for using code space in spread-spectrum communications
US8477592B2 (en) 2003-05-14 2013-07-02 Qualcomm Incorporated Interference and noise estimation in an OFDM system
US7646802B2 (en) * 2003-06-02 2010-01-12 Qualcomm Incorporated Communication receiver with hybrid equalizer
US7609297B2 (en) * 2003-06-25 2009-10-27 Qst Holdings, Inc. Configurable hardware based digital imaging apparatus
US7359692B2 (en) * 2003-06-30 2008-04-15 Zarbana Digital Fund, Llc Method of and device for antennae diversity switching
MXPA06000556A (en) 2003-07-14 2006-07-10 Thomson Licensing Apparatus and method for processing analog and digital signals from multiple signal sources.
US8489949B2 (en) * 2003-08-05 2013-07-16 Qualcomm Incorporated Combining grant, acknowledgement, and rate control commands
US7200837B2 (en) * 2003-08-21 2007-04-03 Qst Holdings, Llc System, method and software for static and dynamic programming and configuration of an adaptive computing architecture
US7181220B2 (en) * 2003-09-24 2007-02-20 Intel Corporation Seamless roaming apparatus, systems, and methods
US7466682B1 (en) * 2004-02-27 2008-12-16 Sprint Spectrum L.P. Forward and reverse link capacity determination
US9025638B2 (en) * 2004-06-16 2015-05-05 Telefonaktiebolaget L M Ericsson (Publ) Method and apparatus to compensate for receiver frequency error in noise estimation processing
US8442441B2 (en) * 2004-12-23 2013-05-14 Qualcomm Incorporated Traffic interference cancellation
US8406695B2 (en) 2004-12-23 2013-03-26 Qualcomm Incorporated Joint interference cancellation of pilot, overhead and traffic channels
US8422955B2 (en) * 2004-12-23 2013-04-16 Qualcomm Incorporated Channel estimation for interference cancellation
US7764727B2 (en) * 2005-01-12 2010-07-27 Atheros Communications, Inc. Selecting MCS in a MIMO system
US7660342B2 (en) * 2005-05-04 2010-02-09 Stmicroelectronics (Rousset) Sas Digital receiver device based on an input comparator
US7630427B2 (en) * 2005-09-29 2009-12-08 Qualcomm Incorporated Systems, methods, and apparatus for establishing finger lock state
US8472877B2 (en) * 2005-10-24 2013-06-25 Qualcomm Incorporated Iterative interference cancellation system and method
US7693241B2 (en) 2005-10-31 2010-04-06 Qualcomm Incorporated Rake receiver finger assignment based on signal path concentration
US8385388B2 (en) * 2005-12-06 2013-02-26 Qualcomm Incorporated Method and system for signal reconstruction from spatially and temporally correlated received samples
WO2007136415A2 (en) * 2005-12-30 2007-11-29 Comtech Mobile Datacom Corporation Mobile satellite communications
JP4771835B2 (en) * 2006-03-06 2011-09-14 株式会社リコー Toner and image forming method
JP2007324754A (en) * 2006-05-30 2007-12-13 Ntt Docomo Inc Signal receiving section detector
US8275080B2 (en) * 2006-11-17 2012-09-25 Comtech Mobile Datacom Corporation Self-supporting simplex packets
KR100942154B1 (en) * 2006-11-17 2010-02-12 삼성전자주식회사 Apparatus and method for executing handover in broadband wireless communication systme
US8369356B2 (en) * 2007-03-21 2013-02-05 Qualcomm Incorporated Dynamic management of receiver resources
US8326365B2 (en) 2007-05-29 2012-12-04 Qualcomm Incorporated Sectorized base stations as multiple antenna systems
US8284749B2 (en) * 2008-03-10 2012-10-09 Comtech Mobile Datacom Corporation Time slot synchronized, flexible bandwidth communication system
US8068838B1 (en) * 2008-08-19 2011-11-29 Clear Wireless Llc Mobile communication device initiated hand-off based on air interface metrics
US8964692B2 (en) * 2008-11-10 2015-02-24 Qualcomm Incorporated Spectrum sensing of bluetooth using a sequence of energy detection measurements
US8548107B1 (en) 2009-01-26 2013-10-01 Comtech Mobile Datacom Corporation Advanced multi-user detector
US9106364B1 (en) 2009-01-26 2015-08-11 Comtech Mobile Datacom Corporation Signal processing of a high capacity waveform
US8675711B1 (en) 2009-09-25 2014-03-18 Comtech Mobile Datacom Corporation System and methods for dynamic spread spectrum usage
JP5990466B2 (en) 2010-01-21 2016-09-14 スビラル・インコーポレーテッド Method and apparatus for a general purpose multi-core system for implementing stream-based operations
US20140185591A1 (en) 2012-04-06 2014-07-03 Qualcomm Incorporated Power control with dynamic timing update
US9408245B2 (en) * 2013-10-30 2016-08-02 Qualcomm, Incorporated Systems and methods for acquiring service using multiple channels
US9766331B2 (en) 2014-12-16 2017-09-19 Honeywell International Inc. Sectorized antennas for improved airborne reception of surveillance signals
US11082176B2 (en) 2016-11-04 2021-08-03 Futurewei Technologies, Inc. System and method for transmitting a sub-space selection

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2650715B1 (en) * 1989-08-03 1991-11-08 Europ Agence Spatiale CODED DISTRIBUTION MULTIPLE ACCESS COMMUNICATION SYSTEM WITH USER VOICE-ACTIVATED CARRIER AND CODE SYNCHRONIZATION
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
US5056109A (en) * 1989-11-07 1991-10-08 Qualcomm, Inc. Method and apparatus for controlling transmission power in a cdma cellular mobile telephone system
US5303393A (en) * 1990-11-06 1994-04-12 Radio Satellite Corporation Integrated radio satellite response system and method
IL100213A (en) * 1990-12-07 1995-03-30 Qualcomm Inc CDMA microcellular telephone system and distributed antenna system therefor
US5303219A (en) * 1991-09-09 1994-04-12 International Business Machines Corporation Reclamation of dust contaminated sectors in optical disk apparatus
US5515378A (en) * 1991-12-12 1996-05-07 Arraycomm, Inc. Spatial division multiple access wireless communication systems
US5267261A (en) * 1992-03-05 1993-11-30 Qualcomm Incorporated Mobile station assisted soft handoff in a CDMA cellular communications system
US5437055A (en) * 1993-06-03 1995-07-25 Qualcomm Incorporated Antenna system for multipath diversity in an indoor microcellular communication system

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