IN2014MN01707A - - Google Patents

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Publication number
IN2014MN01707A
IN2014MN01707A IN1707MUN2014A IN2014MN01707A IN 2014MN01707 A IN2014MN01707 A IN 2014MN01707A IN 1707MUN2014 A IN1707MUN2014 A IN 1707MUN2014A IN 2014MN01707 A IN2014MN01707 A IN 2014MN01707A
Authority
IN
India
Prior art keywords
filter
tracking speed
filter coefficients
mbsfn
speeding
Prior art date
Application number
Inventor
Jun Won Choi
Huilin Xu
Raghu Narayan Challa
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 IN2014MN01707A publication Critical patent/IN2014MN01707A/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/0014—Carrier regulation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H04L27/2601—Multicarrier modulation systems
    • H04L27/2647—Arrangements specific to the receiver only
    • H04L27/2655—Synchronisation arrangements
    • H04L27/2657—Carrier synchronisation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H04L27/2601—Multicarrier modulation systems
    • H04L27/2647—Arrangements specific to the receiver only
    • H04L27/2655—Synchronisation arrangements
    • H04L27/2668—Details of algorithms
    • H04L27/2681—Details of algorithms characterised by constraints
    • H04L27/2685—Speed of convergence
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/0014—Carrier regulation
    • H04L2027/0024—Carrier regulation at the receiver end
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/0014—Carrier regulation
    • H04L2027/0044—Control loops for carrier regulation
    • H04L2027/0053—Closed loops
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/0014—Carrier regulation
    • H04L2027/0044—Control loops for carrier regulation
    • H04L2027/0063—Elements of loops
    • H04L2027/0069—Loop filters

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Bidirectional Digital Transmission (AREA)

Abstract

A method for speeding up a filter tracking speed includes scaling filter coefficients based at least in part on an uplink/downlink configuration in a time division duplex (TDD) or a multimedia broadcast single frequency network (MBSFN) system. The method also includes applying scaled filter coefficients during at least one downlink subframe to control a filter tracking speed.
IN1707MUN2014 2012-03-16 2013-03-13 IN2014MN01707A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US201261611770P 2012-03-16 2012-03-16
US13/797,907 US9414372B2 (en) 2012-03-16 2013-03-12 Digital filter control for filter tracking speedup
PCT/US2013/031028 WO2013138515A1 (en) 2012-03-16 2013-03-13 Scaling of digital filter coefficients for speeding up filter tracking in a tdd or mbsfn system

Publications (1)

Publication Number Publication Date
IN2014MN01707A true IN2014MN01707A (en) 2015-05-29

Family

ID=49157535

Family Applications (1)

Application Number Title Priority Date Filing Date
IN1707MUN2014 IN2014MN01707A (en) 2012-03-16 2013-03-13

Country Status (8)

Country Link
US (1) US9414372B2 (en)
EP (1) EP2826216A1 (en)
JP (1) JP2015516721A (en)
KR (1) KR20140146102A (en)
CN (1) CN104137500A (en)
IN (1) IN2014MN01707A (en)
TW (1) TW201342969A (en)
WO (1) WO2013138515A1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016156950A1 (en) * 2015-03-27 2016-10-06 Andrew Wireless Systems Gmbh Digital repeater system
US10021736B2 (en) 2015-04-27 2018-07-10 Qualcomm Incorporated Skip RX during SBS transmission
US9736442B1 (en) * 2016-08-29 2017-08-15 Christie Digital Systems Usa, Inc. Device, system and method for content-adaptive resolution-enhancement

Family Cites Families (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5058047A (en) * 1989-05-30 1991-10-15 Advanced Micro Devices, Inc. System and method for providing digital filter coefficients
US5243624A (en) * 1991-07-26 1993-09-07 General Instrument Corporation Method and apparatus for updating coefficients in a complex adaptive equalizer
US5838599A (en) * 1996-09-13 1998-11-17 Measurex Corporation Method and apparatus for nonlinear exponential filtering of signals
US6240133B1 (en) * 1998-02-05 2001-05-29 Texas Instruments Incorporated High stability fast tracking adaptive equalizer for use with time varying communication channels
US20020086707A1 (en) * 2000-11-15 2002-07-04 Struhsaker Paul F. Wireless communication system using block filtering and fast equalization-demodulation and method of operation
US7068736B2 (en) * 2001-07-11 2006-06-27 Agere Systems Inc. Methods and devices for shortening the convergence time of blind, adaptive equalizers
US7027504B2 (en) * 2001-09-18 2006-04-11 Broadcom Corporation Fast computation of decision feedback equalizer coefficients
EP1347611A1 (en) * 2002-03-20 2003-09-24 Siemens Information and Communication Networks S.p.A. Data aided frequency synchronisation
US7480498B2 (en) * 2004-09-27 2009-01-20 Cisco Technology, Inc. Receiver gain control using a pilot signal
US7912729B2 (en) * 2007-02-23 2011-03-22 Qnx Software Systems Co. High-frequency bandwidth extension in the time domain
JP5290207B2 (en) * 2007-03-02 2013-09-18 クゥアルコム・インコーポレイテッド Superimposed composite channel filter
US7907977B2 (en) * 2007-10-02 2011-03-15 Agere Systems Inc. Echo canceller with correlation using pre-whitened data values received by downlink codec
EP2321940A4 (en) * 2008-08-04 2012-07-18 Nxp Bv An adaptive scheme to determine the sub-carrier spacing for multi-carrier systems
US8635645B2 (en) 2008-09-30 2014-01-21 Qualcomm Incorporated Apparatus and methods of providing and receiving venue level transmissions and services
US20110158342A1 (en) * 2009-06-30 2011-06-30 Qualcomm Incorporated Time tracking for a communication system utilizing a cyclic prefix
US8509721B2 (en) * 2009-11-09 2013-08-13 Research In Motion Limited Hysteresis nonlinear state machine with overlapping thresholds for automatic frequency control
CN102264091B (en) 2010-05-24 2014-05-07 联芯科技有限公司 Method for executing L3 smoothing at terminal, and mobile terminal thereof
US9099077B2 (en) * 2010-06-04 2015-08-04 Apple Inc. Active noise cancellation decisions using a degraded reference
US8520781B2 (en) * 2010-07-29 2013-08-27 Blackberry Limited System and method for channel estimation
US8879982B2 (en) * 2010-10-26 2014-11-04 Emc Satcom Technologies, Llc Automatic uplink power control in interference cancellation based spectral reuse
CN102123127B (en) * 2010-12-31 2013-03-13 意法·爱立信半导体（北京）有限公司 Coefficient calculation method and coefficient calculation device of time-domain channel estimation filter
US8705556B2 (en) * 2011-08-15 2014-04-22 Blackberry Limited Notifying a UL/DL configuration in LTE TDD systems
US8761294B2 (en) * 2012-02-17 2014-06-24 Alcatel Lucent Methods and systems for reducing crosstalk

Also Published As

Publication number Publication date
US9414372B2 (en) 2016-08-09
TW201342969A (en) 2013-10-16
KR20140146102A (en) 2014-12-24
EP2826216A1 (en) 2015-01-21
CN104137500A (en) 2014-11-05
US20130242820A1 (en) 2013-09-19
WO2013138515A1 (en) 2013-09-19
JP2015516721A (en) 2015-06-11

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