BR112019002236A2 - métodos e aparelho para construção de livros código scma - Google Patents

métodos e aparelho para construção de livros código scma

Info

Publication number
BR112019002236A2
BR112019002236A2 BR112019002236A BR112019002236A BR112019002236A2 BR 112019002236 A2 BR112019002236 A2 BR 112019002236A2 BR 112019002236 A BR112019002236 A BR 112019002236A BR 112019002236 A BR112019002236 A BR 112019002236A BR 112019002236 A2 BR112019002236 A2 BR 112019002236A2
Authority
BR
Brazil
Prior art keywords
codebook
scma
constellation
methods
constellation points
Prior art date
Application number
BR112019002236A
Other languages
English (en)
Inventor
Sun Haitong
Bhushan Naga
Ji Tingfang
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 BR112019002236A2 publication Critical patent/BR112019002236A2/pt

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
    • H04B1/69—Spread spectrum techniques
    • H04B1/707—Spread spectrum techniques using direct sequence modulation
    • H04B1/7073—Synchronisation aspects
    • H04B1/7075—Synchronisation aspects with code phase acquisition
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J13/00—Code division multiplex systems
    • H04J13/0007—Code type
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J13/00—Code division multiplex systems
    • H04J13/10—Code generation
    • 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
    • H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
    • H04L1/0041—Arrangements at the transmitter end
    • H04L1/0042—Encoding specially adapted to other signal generation operation, e.g. in order to reduce transmit distortions, jitter, or to improve signal shape
    • 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
    • H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
    • H04L1/0056—Systems characterized by the type of code used
    • H04L1/0057—Block codes
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0466—Wireless resource allocation based on the type of the allocated resource the resource being a scrambling code
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B2201/00—Indexing scheme relating to details of transmission systems not covered by a single group of H04B3/00 - H04B13/00
    • H04B2201/69—Orthogonal indexing scheme relating to spread spectrum techniques in general
    • H04B2201/698—Orthogonal indexing scheme relating to spread spectrum techniques in general relating to Uplink
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B2201/00—Indexing scheme relating to details of transmission systems not covered by a single group of H04B3/00 - H04B13/00
    • H04B2201/69—Orthogonal indexing scheme relating to spread spectrum techniques in general
    • H04B2201/707—Orthogonal indexing scheme relating to spread spectrum techniques in general relating to direct sequence modulation
    • H04B2201/7073—Direct sequence modulation synchronisation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J13/00—Code division multiplex systems
    • H04J2013/0096—Network synchronisation

Landscapes

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

Abstract

são descritos métodos e aparelho utilizados nas comunicações sem fio. os métodos e aparelho estabelecem um livro código para uso na comunicações codificadas de acesso múltiplo de código esparso (scma), em particular. o livro código scma é configurado para determinar o livro código para pelo menos uma camada (isso é, usuário) para incluir uma constelação de pontos, possuindo um primeiro agrupamento de pontos de constelação localizado a uma primeira distância radial de uma origem em um plano complexo, e um segundo agrupamento de pontos de constelação localizado a uma segunda distância radial a partir da origem. essa disposição de livro código fornece ganhos aumentados nos receptores pela otimização do formato de constelação para aperfeiçoar a distância entre os pontos de constelação (isso é, desempenho de livro código scma), e, em particular, um desempenho mais robusto quando se depara com a falta de alinhamento de amplitude e fase no acesso múltiplo de uplink (ul).
BR112019002236A 2016-08-11 2017-08-10 métodos e aparelho para construção de livros código scma BR112019002236A2 (pt)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US201662373838P 2016-08-11 2016-08-11
US15/588,431 US10263660B2 (en) 2016-08-11 2017-05-05 Methods and apparatus for construction of SCMA codebooks
PCT/US2017/046367 WO2018031819A1 (en) 2016-08-11 2017-08-10 Methods and apparatus for construction of scma codebooks

Publications (1)

Publication Number Publication Date
BR112019002236A2 true BR112019002236A2 (pt) 2019-05-14

Family

ID=61159506

Family Applications (1)

Application Number Title Priority Date Filing Date
BR112019002236A BR112019002236A2 (pt) 2016-08-11 2017-08-10 métodos e aparelho para construção de livros código scma

Country Status (6)

Country Link
US (1) US10263660B2 (pt)
EP (1) EP3497897B1 (pt)
CN (1) CN109565478B (pt)
AU (1) AU2017311567B2 (pt)
BR (1) BR112019002236A2 (pt)
WO (1) WO2018031819A1 (pt)

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US10868569B2 (en) * 2017-05-08 2020-12-15 Qualcomm Incorporated PBCH signal design and efficient continuous monitoring and polar decoding
US10560910B2 (en) 2017-06-12 2020-02-11 Qualcomm Incoporated Synchronization signal for a broadcast channel
WO2018236078A1 (ko) * 2017-06-19 2018-12-27 엘지전자 주식회사 무선통신시스템에서 직교 또는 비직교 부호 다중 접속 기법을 사용하여 통신을 수행하는 방법 및 장치
US11044125B2 (en) * 2017-10-10 2021-06-22 Telefonaktiebolaget Lm Ericsson (Publ) Nodes and methods therein for improving multi-user transmissions in a wireless communications network
US10887822B2 (en) * 2018-09-19 2021-01-05 Cisco Technology, Inc. Dynamic multi-size radio clustering using RF constellation
CN110166385B (zh) * 2019-05-24 2022-02-01 武汉虹信科技发展有限责任公司 一种码本生成方法及装置
WO2020242898A1 (en) 2019-05-26 2020-12-03 Genghiscomm Holdings, LLC Non-orthogonal multiple access
CN110365377B (zh) * 2019-07-15 2021-11-23 电子科技大学 多天线空分多址和scma非正交多址结合的下行传输方法
US11070245B1 (en) * 2020-08-21 2021-07-20 Huawei Technologies Co., Ltd. System and method for single-carrier multiple access transmission
CN112543163B (zh) * 2020-10-29 2023-04-14 沈阳理工大学 基于星座衍生的scma母码本设计方法
US11997185B2 (en) * 2021-06-23 2024-05-28 Qualcomm Incorporated Demodulator configuration based on user equipment signaling
CN116155675A (zh) * 2021-11-19 2023-05-23 华为技术有限公司 数据发送的方法和装置
CN114338330B (zh) * 2022-03-03 2022-06-24 南昌大学 基于可见光通信下的scma码本设计方法及装置
CN114337933B (zh) * 2022-03-16 2022-06-24 南昌大学 基于scma的高速可见光通信系统及自适应编解码方法
CN115173910B (zh) * 2022-09-05 2023-03-10 南昌大学 基于叠加星座的vlc-scma的码本设计方法及装置
CN115865197B (zh) * 2023-02-20 2023-06-06 南昌大学 散粒噪声下可见光通信scma实数码本优化方法及系统

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US9240853B2 (en) * 2012-11-16 2016-01-19 Huawei Technologies Co., Ltd. Systems and methods for sparse code multiple access
US9813178B2 (en) * 2012-11-26 2017-11-07 Qualcomm Incorporated Systems and methods for small cell uplink interference cancellation using cooperation between small cells
US9509379B2 (en) 2013-06-17 2016-11-29 Huawei Technologies Co., Ltd. System and method for designing and using multidimensional constellations
US9356748B2 (en) * 2013-08-07 2016-05-31 Huawei Technologies Co., Ltd. System and method for scalable digital communications with adaptive system parameters
US10700803B2 (en) 2014-08-15 2020-06-30 Huawei Technologies Co., Ltd. System and method for generating codebooks with small projections per complex dimension and utilization thereof
US20160254937A1 (en) 2015-02-27 2016-09-01 Huawei Technologies Co., Ltd Low complexity scma/lds detection systems and methods
CN104869094B (zh) * 2015-04-29 2018-04-20 清华大学 联合正交多址与非正交多址的上行多址接入方法
EP3311622B1 (en) * 2015-06-17 2022-06-29 Hughes Network Systems, LLC Unique word (uw) based multiple access signal acquisition technique
CN105099535B (zh) * 2015-07-02 2018-04-13 北京理工大学 基于ds‑cdma体制的多通道信号幅相特性权值矩阵测量方法
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Also Published As

Publication number Publication date
AU2017311567A1 (en) 2019-01-31
CN109565478B (zh) 2021-11-26
CN109565478A (zh) 2019-04-02
WO2018031819A1 (en) 2018-02-15
AU2017311567B2 (en) 2021-09-23
EP3497897A1 (en) 2019-06-19
US10263660B2 (en) 2019-04-16
EP3497897B1 (en) 2022-06-08
US20180048349A1 (en) 2018-02-15

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