TW201132026A - Method and apparatus for performing searches with multiple receive diversity (RxD) search modes - Google Patents

Method and apparatus for performing searches with multiple receive diversity (RxD) search modes Download PDF

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Publication number
TW201132026A
TW201132026A TW099117233A TW99117233A TW201132026A TW 201132026 A TW201132026 A TW 201132026A TW 099117233 A TW099117233 A TW 099117233A TW 99117233 A TW99117233 A TW 99117233A TW 201132026 A TW201132026 A TW 201132026A
Authority
TW
Taiwan
Prior art keywords
search
correlation
rxd
search mode
receive
Prior art date
Application number
TW099117233A
Other languages
English (en)
Chinese (zh)
Inventor
An-Swol C Hu
Jittra Jootar
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 TW201132026A publication Critical patent/TW201132026A/zh

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/08—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/08—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station
    • H04B7/0837—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station using pre-detection combining
    • H04B7/0842—Weighted combining
    • H04B7/086—Weighted combining using weights depending on external parameters, e.g. direction of arrival [DOA], predetermined weights or beamforming
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/0413—MIMO systems
    • H04B7/0426—Power distribution
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/08—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station
    • H04B7/0868—Hybrid systems, i.e. switching and combining
    • H04B7/0871—Hybrid systems, i.e. switching and combining using different reception schemes, at least one of them being a diversity reception scheme
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/08—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station
    • H04B7/0882—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station using post-detection diversity
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/08—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station
    • H04B7/0882—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station using post-detection diversity
    • H04B7/0885—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station using post-detection diversity with combination
    • 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
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/16—Discovering, processing access restriction or access information
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Databases & Information Systems (AREA)
  • Power Engineering (AREA)
  • Computer Security & Cryptography (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Radio Transmission System (AREA)
TW099117233A 2009-05-29 2010-05-28 Method and apparatus for performing searches with multiple receive diversity (RxD) search modes TW201132026A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US18254409P 2009-05-29 2009-05-29
US12/789,263 US20100304744A1 (en) 2009-05-29 2010-05-27 Method and apparatus for performing searches with multiple receive diversity (rxd) search modes

Publications (1)

Publication Number Publication Date
TW201132026A true TW201132026A (en) 2011-09-16

Family

ID=43220798

Family Applications (1)

Application Number Title Priority Date Filing Date
TW099117233A TW201132026A (en) 2009-05-29 2010-05-28 Method and apparatus for performing searches with multiple receive diversity (RxD) search modes

Country Status (7)

Country Link
US (1) US20100304744A1 (enExample)
EP (1) EP2436124B1 (enExample)
JP (3) JP5442856B2 (enExample)
KR (2) KR101367338B1 (enExample)
CN (1) CN102449928B (enExample)
TW (1) TW201132026A (enExample)
WO (1) WO2010138829A2 (enExample)

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US9066257B2 (en) * 2012-04-12 2015-06-23 Intel Mobile Communications GmbH Correlation based cell search and measurement for LTE and LTE-A
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Also Published As

Publication number Publication date
WO2010138829A3 (en) 2011-03-10
JP5442856B2 (ja) 2014-03-12
KR20130124406A (ko) 2013-11-13
JP2013243686A (ja) 2013-12-05
KR101367338B1 (ko) 2014-02-28
JP2015201866A (ja) 2015-11-12
KR101450295B1 (ko) 2014-10-22
US20100304744A1 (en) 2010-12-02
CN102449928A (zh) 2012-05-09
JP6147806B2 (ja) 2017-06-14
JP5868901B2 (ja) 2016-02-24
CN102449928B (zh) 2016-01-06
JP2012528544A (ja) 2012-11-12
EP2436124B1 (en) 2018-03-07
EP2436124A2 (en) 2012-04-04
WO2010138829A2 (en) 2010-12-02
KR20120089423A (ko) 2012-08-10

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