IN2014CN03124A - - Google Patents

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Publication number
IN2014CN03124A
IN2014CN03124A IN3124CHN2014A IN2014CN03124A IN 2014CN03124 A IN2014CN03124 A IN 2014CN03124A IN 3124CHN2014 A IN3124CHN2014 A IN 3124CHN2014A IN 2014CN03124 A IN2014CN03124 A IN 2014CN03124A
Authority
IN
India
Prior art keywords
pss
sss
analyzing
metrics
snr
Prior art date
Application number
Inventor
Shivratna Giri Srinivasan
Brian Clarke Banister
Supratik Bhattacharjee
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 IN2014CN03124A publication Critical patent/IN2014CN03124A/en

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J11/00—Orthogonal multiplex systems, e.g. using WALSH codes
    • H04J11/0069—Cell search, i.e. determining cell identity [cell-ID]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J11/00—Orthogonal multiplex systems, e.g. using WALSH codes
    • H04J11/0069—Cell search, i.e. determining cell identity [cell-ID]
    • H04J11/0073—Acquisition of primary synchronisation channel, e.g. detection of cell-ID within cell-ID group
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J11/00—Orthogonal multiplex systems, e.g. using WALSH codes
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J11/00—Orthogonal multiplex systems, e.g. using WALSH codes
    • H04J11/0069—Cell search, i.e. determining cell identity [cell-ID]
    • H04J11/0076—Acquisition of secondary synchronisation channel, e.g. detection of cell-ID group
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J11/00—Orthogonal multiplex systems, e.g. using WALSH codes
    • H04J2011/0096—Network 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
    • H04L27/2657—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
    • H04L27/2666—Acquisition of further OFDM parameters, e.g. bandwidth, subcarrier spacing, or guard interval length
    • 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

Abstract

In a wireless network a base station (BS) may send a primary synchronization signal (PSS) and a secondary synchronization signal (SSS). The synchronization signals may be used by user equipments (UEs) for cell detection and acquisition. A typical searching operation may involve first locating the PSS sequences transmitted by neighboring BSs followed by SSS detection. Described further herein are algorithms that result in the detection of the PSS and the SSS from a BS. A method for detecting a BS generally includes sampling a received signal from receiver antennas to obtain a sampled sequence analyzing the sampled sequence to detect a PSS in a current half frame (HF) calculating signal to noise ratio (SNR) metrics based on the detected PSS combining the calculated SNR metrics with SNR metrics from previous HFs analyzing the combined SNR metrics to obtain timing information and analyzing the sampled sequence using the timing information to detect a SSS.
IN3124CHN2014 2011-11-10 2012-11-09 IN2014CN03124A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US201161558377P 2011-11-10 2011-11-10
US13/671,680 US8954055B2 (en) 2011-11-10 2012-11-08 Initial acquisition and neighbor search algorithms for wireless networks
PCT/US2012/064264 WO2013070991A1 (en) 2011-11-10 2012-11-09 Initial acquisition and neighbor search algorithms for wireless networks

Publications (1)

Publication Number Publication Date
IN2014CN03124A true IN2014CN03124A (en) 2015-07-03

Family

ID=48281096

Family Applications (1)

Application Number Title Priority Date Filing Date
IN3124CHN2014 IN2014CN03124A (en) 2011-11-10 2012-11-09

Country Status (7)

Country Link
US (1) US8954055B2 (en)
EP (1) EP2777234B1 (en)
JP (1) JP5859671B2 (en)
KR (1) KR101615836B1 (en)
CN (1) CN103931152B (en)
IN (1) IN2014CN03124A (en)
WO (1) WO2013070991A1 (en)

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EP2944040A4 (en) * 2013-01-18 2016-09-21 Nokia Technologies Oy Controlled synchronization group selection
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US11855818B1 (en) 2014-04-30 2023-12-26 Marvell Asia Pte Ltd Adaptive orthogonal frequency division multiplexing (OFDM) numerology in a wireless communication network
US9924493B1 (en) * 2015-04-07 2018-03-20 Mbit Wireless, Inc. Method and apparatus for multiple parallel broadcast channel decoder
US10461877B2 (en) 2015-05-08 2019-10-29 Intel IP Corporation Device and method of configurable synchronization signal and channel design
KR101592959B1 (en) * 2015-05-26 2016-02-12 (주)링크텍 Apparatus and Method for level control of RF power of Multi band
KR102434593B1 (en) * 2015-07-07 2022-08-22 삼성전자주식회사 System and method for synchronization and interference rejection in super regenerative receiver
US9729307B1 (en) * 2015-08-10 2017-08-08 Mbit Wireless, Inc. Method and apparatus for detection of boundary between transmission and reception in TDD communication systems
US20170064656A1 (en) * 2015-08-26 2017-03-02 Qualcomm Incorporated Single receive long term evolution mobility enhancements
US20170127367A1 (en) * 2015-10-28 2017-05-04 Telefonaktiebolaget L M Ericsson (Publ) Beam-Scan Time Indicator
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CN107086896B (en) * 2016-02-15 2020-04-07 瑞昱半导体股份有限公司 Method for cell search and method for detecting receiving time of primary synchronization signal
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KR102606801B1 (en) * 2017-12-26 2023-11-27 삼성전자주식회사 Method and apparatus for initial access in wirelss communication system
US10587356B2 (en) * 2018-03-01 2020-03-10 Qualcomm Incorporated Spectrum partitioning using hilbert transform for improved frequency scan
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Also Published As

Publication number Publication date
CN103931152B (en) 2017-07-21
EP2777234A1 (en) 2014-09-17
JP5859671B2 (en) 2016-02-10
US8954055B2 (en) 2015-02-10
US20130122822A1 (en) 2013-05-16
KR101615836B1 (en) 2016-04-26
WO2013070991A1 (en) 2013-05-16
EP2777234B1 (en) 2020-03-25
KR20140098766A (en) 2014-08-08
JP2014533471A (en) 2014-12-11
CN103931152A (en) 2014-07-16

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