ATE422122T1 - Gesteuerte antennendiversität - Google Patents

Gesteuerte antennendiversität

Info

Publication number
ATE422122T1
ATE422122T1 AT00943946T AT00943946T ATE422122T1 AT E422122 T1 ATE422122 T1 AT E422122T1 AT 00943946 T AT00943946 T AT 00943946T AT 00943946 T AT00943946 T AT 00943946T AT E422122 T1 ATE422122 T1 AT E422122T1
Authority
AT
Austria
Prior art keywords
diversity
antenna diversity
controlled antenna
base band
processing circuit
Prior art date
Application number
AT00943946T
Other languages
English (en)
Inventor
Torsten Carlsson
Kjell Gustafsson
Torgny Palenius
Original Assignee
Ericsson Telefon Ab L M
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 Ericsson Telefon Ab L M filed Critical Ericsson Telefon Ab L M
Application granted granted Critical
Publication of ATE422122T1 publication Critical patent/ATE422122T1/de

Links

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
    • H04B7/0868—Hybrid systems, i.e. switching and combining
    • H04B7/0874—Hybrid systems, i.e. switching and combining using subgroups of receive antennas
    • H04B7/0877—Hybrid systems, i.e. switching and combining using subgroups of receive antennas switching off a diversity branch, e.g. to save power
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/02—Arrangements for detecting or preventing errors in the information received by diversity reception
    • H04L1/06—Arrangements for detecting or preventing errors in the information received by diversity reception using space 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
    • H04B7/0802—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 antenna selection
    • H04B7/0805—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 antenna selection with single receiver and antenna switching
    • H04B7/0808—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 antenna selection with single receiver and antenna switching comparing all antennas before reception
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H04L1/0023—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the signalling
    • H04L1/0025—Transmission of mode-switching indication
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H04L1/0036—Systems modifying transmission characteristics according to link quality, e.g. power backoff arrangements specific to the receiver

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Variable-Direction Aerials And Aerial Arrays (AREA)
  • Radio Transmission System (AREA)
  • Details Of Aerials (AREA)
  • Medicines Containing Material From Animals Or Micro-Organisms (AREA)
  • Preparation Of Compounds By Using Micro-Organisms (AREA)
AT00943946T 1999-07-07 2000-06-29 Gesteuerte antennendiversität ATE422122T1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US09/348,494 US7024168B1 (en) 1999-07-07 1999-07-07 Controlled antenna diversity

Publications (1)

Publication Number Publication Date
ATE422122T1 true ATE422122T1 (de) 2009-02-15

Family

ID=23368279

Family Applications (1)

Application Number Title Priority Date Filing Date
AT00943946T ATE422122T1 (de) 1999-07-07 2000-06-29 Gesteuerte antennendiversität

Country Status (11)

Country Link
US (1) US7024168B1 (de)
EP (1) EP1197025B1 (de)
JP (1) JP2003504957A (de)
CN (1) CN1171412C (de)
AT (1) ATE422122T1 (de)
AU (1) AU5822100A (de)
DE (1) DE60041492D1 (de)
HK (1) HK1049559B (de)
IL (2) IL147482A0 (de)
PL (1) PL352279A1 (de)
WO (1) WO2001005088A1 (de)

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US7916803B2 (en) 2003-04-10 2011-03-29 Qualcomm Incorporated Modified preamble structure for IEEE 802.11a extensions to allow for coexistence and interoperability between 802.11a devices and higher data rate, MIMO or otherwise extended devices
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BR112013032800B1 (pt) * 2011-06-22 2021-02-23 Vam Drilling France elemento para uma coluna de perfuração, dispositivo tubular com comunicação de radiofrequência para cabeça de poço e método para a comunicação
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CN103378887B (zh) * 2012-04-20 2017-08-25 南京中兴新软件有限责任公司 射频信号的发送、接收装置及方法
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Also Published As

Publication number Publication date
CN1373951A (zh) 2002-10-09
CN1171412C (zh) 2004-10-13
PL352279A1 (en) 2003-08-11
IL147482A (en) 2007-03-08
HK1049559B (zh) 2005-05-27
EP1197025A1 (de) 2002-04-17
IL147482A0 (en) 2002-08-14
WO2001005088A1 (en) 2001-01-18
AU5822100A (en) 2001-01-30
DE60041492D1 (de) 2009-03-19
US7024168B1 (en) 2006-04-04
JP2003504957A (ja) 2003-02-04
HK1049559A1 (en) 2003-05-16
EP1197025B1 (de) 2009-01-28

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