BR112018075353A2 - Method and apparatus for use with a radio distributed antenna system - Google Patents

Method and apparatus for use with a radio distributed antenna system

Info

Publication number
BR112018075353A2
BR112018075353A2 BR112018075353A BR112018075353A BR112018075353A2 BR 112018075353 A2 BR112018075353 A2 BR 112018075353A2 BR 112018075353 A BR112018075353 A BR 112018075353A BR 112018075353 A BR112018075353 A BR 112018075353A BR 112018075353 A2 BR112018075353 A2 BR 112018075353A2
Authority
BR
Brazil
Prior art keywords
modulated signal
antenna system
distributed antenna
signal
communication device
Prior art date
Application number
BR112018075353A
Other languages
Portuguese (pt)
Inventor
J Barnickel Donald
Barzegar Farhad
Gerszberg Irwin
Shala Henry Paul
Bennett Robert
M Willis Thomas Iii
Original Assignee
At & T Ip I Lp
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
Priority claimed from US15/179,396 external-priority patent/US9705571B2/en
Application filed by At & T Ip I Lp filed Critical At & T Ip I Lp
Publication of BR112018075353A2 publication Critical patent/BR112018075353A2/en

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B7/00Radio transmission systems, i.e. using radiation field
    • H04B7/14Relay systems
    • H04B7/15Active relay systems
    • H04B7/155Ground-based stations
    • H04B7/15507Relay station based processing for cell extension or control of coverage area
    • HELECTRICITY
    • H03ELECTRONIC CIRCUITRY
    • H03DDEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
    • H03D3/00Demodulation of angle-, frequency- or phase- modulated oscillations
    • H03D3/02Demodulation of angle-, frequency- or phase- modulated oscillations by detecting phase difference between two signals obtained from input signal
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B1/00Details 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
    • H04B1/02Transmitters
    • H04B1/04Circuits
    • H04B1/0475Circuits with means for limiting noise, interference or distortion
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B3/00Line transmission systems
    • H04B3/54Systems for transmission via power distribution lines
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B7/00Radio transmission systems, i.e. using radiation field
    • H04B7/24Radio transmission systems, i.e. using radiation field for communication between two or more posts
    • H04B7/26Radio transmission systems, i.e. using radiation field for communication between two or more posts at least one of which is mobile
    • H04B7/2603Arrangements for wireless physical layer control
    • H04B7/2606Arrangements for base station coverage control, e.g. by using relays in tunnels
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B7/00Radio transmission systems, i.e. using radiation field
    • H04B7/24Radio transmission systems, i.e. using radiation field for communication between two or more posts
    • H04B7/26Radio transmission systems, i.e. using radiation field for communication between two or more posts at least one of which is mobile
    • H04B7/2603Arrangements for wireless physical layer control
    • H04B7/2609Arrangements for range control, e.g. by using remote antennas
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00Baseband systems
    • H04L25/02Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/0202Channel estimation
    • H04L25/0224Channel estimation using sounding signals
    • H04L25/0226Channel estimation using sounding signals sounding signals per se
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00Modulated-carrier systems
    • H04L27/26Systems using multi-frequency codes
    • H04L27/2601Multicarrier modulation systems
    • H04L27/2602Signal structure
    • H04L27/261Details of reference signals
    • H04L27/2613Structure of the reference signals
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00Modulated-carrier systems
    • H04L27/32Carrier systems characterised by combinations of two or more of the types covered by groups H04L27/02, H04L27/10, H04L27/18 or H04L27/26
    • H04L27/34Amplitude- and phase-modulated carrier systems, e.g. quadrature-amplitude modulated carrier systems
    • H04L27/36Modulator circuits; Transmitter circuits
    • H04L27/366Arrangements for compensating undesirable properties of the transmission path between the modulator and the demodulator
    • H04L27/367Arrangements for compensating undesirable properties of the transmission path between the modulator and the demodulator using predistortion
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • H04L5/0001Arrangements for dividing the transmission path
    • H04L5/0014Three-dimensional division
    • H04L5/0023Time-frequency-space
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • H04L5/003Arrangements for allocating sub-channels of the transmission path
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • H04L5/003Arrangements for allocating sub-channels of the transmission path
    • H04L5/0048Allocation of pilot signals, i.e. of signals known to the receiver
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00Modulated-carrier systems
    • H04L27/26Systems using multi-frequency codes
    • H04L27/2601Multicarrier modulation systems
    • H04L27/2647Arrangements specific to the receiver only
    • H04L27/2655Synchronisation arrangements
    • H04L27/2668Details of algorithms
    • H04L27/2673Details of algorithms characterised by synchronisation parameters
    • H04L27/2675Pilot or known symbols
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W88/00Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/08Access point devices
    • H04W88/085Access point devices with remote components

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Power Engineering (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Near-Field Transmission Systems (AREA)
  • Transmitters (AREA)

Abstract

aspectos da presente revelação podem incluir, por exemplo, receber, por um elemento de rede de um sistema de antena distribuída, um sinal de referência e um primeiro sinal modulado em uma primeira frequência de portadora, em que o primeiro sinal modulado inclui os primeiros dados de comunicações fornecidos por uma estação de base e direcionados a um dispositivo de comunicação móvel. o elemento converte o primeiro sinal modulado na primeira frequência de portadora para o primeiro sinal modulado em um primeiro segmento espectral com base em um processamento de sinal analógico do primeiro sinal modulado e com a utilização do sinal de referência para reduzir a distorção durante a conversão. o elemento de rede transmite sem fio o primeiro sinal modulado no primeiro segmento espectral para o dispositivo de comunicação móvel. outras modalidades são reveladas.Aspects of the present disclosure may include, for example, receiving, by a network element of a distributed antenna system, a reference signal and a first modulated signal at a first carrier frequency, wherein the first modulated signal includes the first data. communications provided by a base station and directed to a mobile communication device. The element converts the first modulated signal at the first carrier frequency to the first modulated signal into a first spectral segment based on analog signal processing of the first modulated signal and using the reference signal to reduce distortion during conversion. the network element wirelessly transmits the first modulated signal in the first spectral segment to the mobile communication device. other modalities are revealed.

BR112018075353A 2016-06-10 2017-06-07 Method and apparatus for use with a radio distributed antenna system BR112018075353A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US15/179,396 US9705571B2 (en) 2015-09-16 2016-06-10 Method and apparatus for use with a radio distributed antenna system
PCT/US2017/036271 WO2017214225A1 (en) 2016-06-10 2017-06-07 Method and apparatus for use with a radio distributed antenna system

Publications (1)

Publication Number Publication Date
BR112018075353A2 true BR112018075353A2 (en) 2019-03-19

Family

ID=59078210

Family Applications (1)

Application Number Title Priority Date Filing Date
BR112018075353A BR112018075353A2 (en) 2016-06-10 2017-06-07 Method and apparatus for use with a radio distributed antenna system

Country Status (9)

Country Link
EP (1) EP3469735A1 (en)
JP (1) JP2019526951A (en)
KR (1) KR20190016555A (en)
CN (1) CN109314565A (en)
AU (1) AU2017277414A1 (en)
BR (1) BR112018075353A2 (en)
CA (1) CA3025396A1 (en)
MX (1) MX2018015292A (en)
WO (1) WO2017214225A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020171895A1 (en) 2019-02-20 2020-08-27 Commscope Technologies Llc Distributed antenna systems over general use network infrastructures

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5890055A (en) * 1995-07-28 1999-03-30 Lucent Technologies Inc. Method and system for connecting cells and microcells in a wireless communications network
TW525344B (en) * 2000-12-22 2003-03-21 Paradigm Wireless Comm Llc Feed-forward amplifier loop control utilizing IF signal processing
JP3910167B2 (en) * 2003-09-25 2007-04-25 松下電器産業株式会社 Amplifier circuit
JP2008505513A (en) * 2004-06-03 2008-02-21 ワイデファイ インコーポレイテッド Frequency conversion repeater with low cost, high performance local oscillator structure
EP1953940A4 (en) * 2006-01-10 2014-03-12 Panasonic Corp Multicarrier modulation scheme as well as transmission apparatus and reception apparatus using the scheme
JP2008283288A (en) * 2007-05-08 2008-11-20 Toshiba Corp Radio transmission device and method
CN101534147B (en) * 2009-04-29 2013-01-09 重庆四联微电子有限公司 Frequency conversion relay device and multi-terminal equipment access system based on frequency conversion relay
US9525524B2 (en) * 2013-05-31 2016-12-20 At&T Intellectual Property I, L.P. Remote distributed antenna system
US9680670B2 (en) * 2014-11-20 2017-06-13 At&T Intellectual Property I, L.P. Transmission device with channel equalization and control and methods for use therewith

Also Published As

Publication number Publication date
CA3025396A1 (en) 2017-12-14
KR20190016555A (en) 2019-02-18
MX2018015292A (en) 2019-04-09
EP3469735A1 (en) 2019-04-17
CN109314565A (en) 2019-02-05
AU2017277414A1 (en) 2019-01-17
WO2017214225A1 (en) 2017-12-14
JP2019526951A (en) 2019-09-19

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Legal Events

Date Code Title Description
B11A Dismissal acc. art.33 of ipl - examination not requested within 36 months of filing
B11Y Definitive dismissal - extension of time limit for request of examination expired [chapter 11.1.1 patent gazette]
B350 Update of information on the portal [chapter 15.35 patent gazette]