NO20063099L - Multiantennesystem for samtidig stotte av MISO- og MIMO mottak - Google Patents

Multiantennesystem for samtidig stotte av MISO- og MIMO mottak

Info

Publication number
NO20063099L
NO20063099L NO20063099A NO20063099A NO20063099L NO 20063099 L NO20063099 L NO 20063099L NO 20063099 A NO20063099 A NO 20063099A NO 20063099 A NO20063099 A NO 20063099A NO 20063099 L NO20063099 L NO 20063099L
Authority
NO
Norway
Prior art keywords
pilot signal
miso
mimo
sent
scaled
Prior art date
Application number
NO20063099A
Other languages
English (en)
Inventor
Dhananjay Ashok Gore
Tamer Kadous
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 NO20063099L publication Critical patent/NO20063099L/no

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/76—Pilot transmitters or receivers for control of transmission or for equalising
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/0202—Channel estimation
    • H04L25/0224—Channel estimation using sounding signals
    • H04L25/0226—Channel estimation using sounding signals sounding signals per se
    • 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
    • H04B7/0452—Multi-user MIMO systems
    • 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
    • H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
    • H04B7/0613—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission
    • H04B7/0684—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission using different training sequences per antenna
    • 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
    • H04L27/2602—Signal structure
    • H04L27/261—Details of reference signals
    • H04L27/2613—Structure of the reference signals
    • 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
    • H04L27/2602—Signal structure
    • H04L27/261—Details of reference signals
    • H04L27/2613—Structure of the reference signals
    • H04L27/26132—Structure of the reference signals using repetition
    • 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
    • H04L27/2602—Signal structure
    • H04L27/261—Details of reference signals
    • H04L27/2613—Structure of the reference signals
    • H04L27/26134—Pilot insertion in the transmitter chain, e.g. pilot overlapping with data, insertion in time or frequency domain

Landscapes

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

Abstract

Effektive pilotsignaltransmisjonsskjemaer for multiantennekommunikasjonssystemer er beskrevet. Generelt vil MISO mottakere foretrekke at et pilotsignal sendes i en romlig retning, og MIMO mottakere vil typisk kreve at et pilotsignal sendes i forskjellige romlige retninger. I et pilotsignaltransmisjonsskjema, genereres en første mengde av T skalerte pilotsignalsymboler ved bruk av en første treningsvektor og sendes (f.eks. kontinuerlig) fra T senderantenner, der T større > 1. Dersom MIMO mottaker(e) skal støttes av systemet, vil minst T-1 ytterligere mengder av T skalerte pilotsignalsymboler bli generert ved bruk av minst T-1 ytterligere treningsvektorer og sendt fra de T senderantenner. Treningsvektorene benyttes for forskjellige (f. eks. ortogonale) romlige retninger. Hver MISO mottaker kan estimere sin MISO kanal basert på den første mengde av skalerte pilotsignalsymboler. Hver MIMO mottaker kan estimere sin MIMO kanal basert på den første og de ytterligere mengder av skalerte pilotsignalsymboler.
NO20063099A 2003-12-05 2006-07-04 Multiantennesystem for samtidig stotte av MISO- og MIMO mottak NO20063099L (no)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US52720103P 2003-12-05 2003-12-05
US10/890,718 US7145940B2 (en) 2003-12-05 2004-07-13 Pilot transmission schemes for a multi-antenna system
PCT/US2004/040429 WO2005057870A1 (en) 2003-12-05 2004-12-03 Multi-antenna system to simultaneous support of miso and mimo receivers

Publications (1)

Publication Number Publication Date
NO20063099L true NO20063099L (no) 2006-08-23

Family

ID=34681525

Family Applications (1)

Application Number Title Priority Date Filing Date
NO20063099A NO20063099L (no) 2003-12-05 2006-07-04 Multiantennesystem for samtidig stotte av MISO- og MIMO mottak

Country Status (15)

Country Link
US (1) US7145940B2 (no)
EP (5) EP2202926B1 (no)
JP (6) JP2007513584A (no)
KR (1) KR100820998B1 (no)
AR (1) AR046751A1 (no)
AU (1) AU2004297958C1 (no)
BR (1) BRPI0417242A (no)
CA (2) CA2657472C (no)
IL (1) IL176047A0 (no)
MX (1) MXPA06006385A (no)
NO (1) NO20063099L (no)
NZ (1) NZ547572A (no)
RU (1) RU2333610C2 (no)
TW (2) TWI467951B (no)
WO (1) WO2005057870A1 (no)

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