IN2014CN03554A - - Google Patents

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Publication number
IN2014CN03554A
IN2014CN03554A IN3554CHN2014A IN2014CN03554A IN 2014CN03554 A IN2014CN03554 A IN 2014CN03554A IN 3554CHN2014 A IN3554CHN2014 A IN 3554CHN2014A IN 2014CN03554 A IN2014CN03554 A IN 2014CN03554A
Authority
IN
India
Prior art keywords
uers
timing error
crs
timing
phase ramping
Prior art date
Application number
Inventor
Yi Huang
Tao Luo
Taesang Yoo
Xiliang Luo
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 IN2014CN03554A publication Critical patent/IN2014CN03554A/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • 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
    • H04L27/2662—Symbol 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
    • 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
    • H04L27/2669—Details of algorithms characterised by the domain of operation
    • H04L27/2672—Frequency domain
    • 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
    • H04L27/2673—Details of algorithms characterised by synchronisation parameters
    • H04L27/2675—Pilot or known symbols
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0032—Distributed allocation, i.e. involving a plurality of allocating devices, each making partial allocation
    • H04L5/0035—Resource allocation in a cooperative multipoint environment
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0058—Allocation criteria
    • H04L5/0073—Allocation arrangements that take into account other cell interferences

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Time-Division Multiplex Systems (AREA)

Abstract

Estimation of timing errors is disclosed that uses user equipment reference signals (UERSs). A UE models each channel in a user equipment reference signal (UERS) as a channel on an adjacent UERS tone multiplied by a phase ramping term. This phase ramping term is determined using an estimator on the modeled channels. The UE then determines the equivalent timing error by mapping the phase ramping terms into the estimated timing errors in the time domain. In coordinated multipoint (CoMP) systems the UERS based timing error may be used to identify an aligned common reference signal (CRS) associated with the network entity transmitting the data. With this determination the UE may estimate a CRS based timing error and either substitute the CRS based timing error for the UERS based timing error or calculate a further average timing error based on both the CRS based and UERS based timing errors.
IN3554CHN2014 2011-12-14 2012-11-16 IN2014CN03554A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US201161570661P 2011-12-14 2011-12-14
US13/678,332 US9014114B2 (en) 2011-12-14 2012-11-15 User equipment reference signal-based timing estimation
PCT/US2012/065577 WO2013089970A1 (en) 2011-12-14 2012-11-16 Timing estimation based on user equipment reference signals

Publications (1)

Publication Number Publication Date
IN2014CN03554A true IN2014CN03554A (en) 2015-09-25

Family

ID=48610082

Family Applications (1)

Application Number Title Priority Date Filing Date
IN3554CHN2014 IN2014CN03554A (en) 2011-12-14 2012-11-16

Country Status (7)

Country Link
US (1) US9014114B2 (en)
EP (1) EP2792115B1 (en)
JP (1) JP5882498B2 (en)
KR (1) KR101532597B1 (en)
CN (1) CN103959731B (en)
IN (1) IN2014CN03554A (en)
WO (1) WO2013089970A1 (en)

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EP3046301A1 (en) 2011-11-04 2016-07-20 Intel Corporation Timing synchronization for downlink (dl) transmissions in coordinated multipoint (comp) systems
US9407302B2 (en) * 2012-12-03 2016-08-02 Intel Corporation Communication device, mobile terminal, method for requesting information and method for providing information
WO2014112933A1 (en) * 2013-01-18 2014-07-24 Telefonaktiebolaget L M Ericsson (Publ) Method and apparatus for pilot configuration in a mobile communications network
EP2963989A1 (en) * 2014-07-04 2016-01-06 Sequans Communications S.A. LTE transmission in unlicensed bands
CN104684071B (en) * 2015-03-05 2018-03-06 西安电子科技大学 The up Timing Synchronization trackings of LTE
US10158464B2 (en) * 2015-09-25 2018-12-18 Intel IP Corporation Mobile terminal devices, mobile processing circuits, and methods of processing signals
EP3273605B1 (en) * 2016-07-22 2022-03-09 Intel Corporation Interference mitigation
US10707922B2 (en) * 2017-07-06 2020-07-07 Microsoft Technology Licensing, Llc Spatial hopping using antenna sets across multiple base stations
EP3703435B1 (en) * 2017-10-27 2024-06-26 LG Electronics Inc. Method for transmitting positioning information by terminal in wireless communication system supporting sidelink, a device therefor, a method for transmitting a positioning signal by the network
WO2022205423A1 (en) * 2021-04-02 2022-10-06 Zte Corporation Systems and methods for indicating positioning information in wireless communication systems

Family Cites Families (18)

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Publication number Priority date Publication date Assignee Title
WO2005074305A1 (en) 2004-01-29 2005-08-11 Neocific, Inc. Methods and apparatus for multi-carrier, multi-cell wireless communication networks
CN101478338B (en) * 2008-01-04 2013-01-02 电信科学技术研究院 Multiplex transmission method for public reference signal and special reference signal
KR101488028B1 (en) * 2008-07-17 2015-01-30 엘지전자 주식회사 Method for transmitting reference signal in multiple antenna system
EP2200245B1 (en) 2008-12-19 2012-08-15 Telefonaktiebolaget L M Ericsson (publ) A receiver and a method for mobile communications
WO2010140298A1 (en) 2009-06-02 2010-12-09 パナソニック株式会社 Wireless communication apparatus and wireless communication method
US8965395B2 (en) * 2009-06-05 2015-02-24 Qualcomm Incorporated Positioning of user equipment in a wireless communication network
US8248997B2 (en) 2009-08-17 2012-08-21 Nokia Corporation Apparatus and method for positioning a wireless user equipment
KR101573001B1 (en) * 2009-08-24 2015-11-30 삼성전자주식회사 Receiver and method for using reference singnal thereof
EP2472735A4 (en) * 2009-08-26 2017-02-01 LG Electronics Inc. Method and apparatus for transmitting/receiving a signal in a wireless communication system that supports multi-user mimo transmission
US8576692B2 (en) * 2009-09-10 2013-11-05 Qualcomm Incorporated Transmission of UE-specific reference signal for wireless communication
US10193678B2 (en) * 2009-10-08 2019-01-29 Qualcomm Incorporated Muting schemes for channel state information reference signal and signaling thereof
US20110244877A1 (en) * 2009-10-08 2011-10-06 Qualcomm Incorporated Method and apparatus for using channel state information reference signal in wireless communication system
US10111111B2 (en) * 2009-11-19 2018-10-23 Qualcomm Incorporated Per-cell timing and/or frequency acquisition and their use on channel estimation in wireless networks
US8824384B2 (en) * 2009-12-14 2014-09-02 Samsung Electronics Co., Ltd. Systems and methods for transmitting channel quality information in wireless communication systems
US9136997B2 (en) 2010-05-04 2015-09-15 Qualcomm Incorporated Methods and apparatuses for using channel state information reference signals
US9143955B2 (en) 2010-05-07 2015-09-22 Qualcomm Incorporated Detecting and reporting physical-layer cell identifier collisions in wireless networks
US9544108B2 (en) 2011-02-11 2017-01-10 Qualcomm Incorporated Method and apparatus for enabling channel and interference estimations in macro/RRH system
US8665811B2 (en) * 2011-08-15 2014-03-04 Motorola Mobility Llc Reference signal for a control channel in wireless communication network

Also Published As

Publication number Publication date
WO2013089970A1 (en) 2013-06-20
US9014114B2 (en) 2015-04-21
JP2015507401A (en) 2015-03-05
JP5882498B2 (en) 2016-03-09
CN103959731B (en) 2017-05-10
EP2792115A1 (en) 2014-10-22
EP2792115B1 (en) 2016-04-13
US20130156013A1 (en) 2013-06-20
CN103959731A (en) 2014-07-30
KR20140098104A (en) 2014-08-07
KR101532597B1 (en) 2015-07-01

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