BR112012003636A2 - método e aparelho para controlar transmissão de dados para downlink em um sistema de comunicação de retransmissão com múltiplos saltos - Google Patents

método e aparelho para controlar transmissão de dados para downlink em um sistema de comunicação de retransmissão com múltiplos saltos

Info

Publication number
BR112012003636A2
BR112012003636A2 BR112012003636A BR112012003636A BR112012003636A2 BR 112012003636 A2 BR112012003636 A2 BR 112012003636A2 BR 112012003636 A BR112012003636 A BR 112012003636A BR 112012003636 A BR112012003636 A BR 112012003636A BR 112012003636 A2 BR112012003636 A2 BR 112012003636A2
Authority
BR
Brazil
Prior art keywords
relay
base station
downlink data
station
user
Prior art date
Application number
BR112012003636A
Other languages
English (en)
Inventor
Jimin Liu
Qun Zhao
Wu Zheng
Original Assignee
Alcetel Lucent
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 Alcetel Lucent filed Critical Alcetel Lucent
Publication of BR112012003636A2 publication Critical patent/BR112012003636A2/pt

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Classifications

    • 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
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • 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
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
    • H04L1/1867—Arrangements specially adapted for the transmitter end
    • H04L1/1874—Buffer management
    • 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
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
    • H04L1/1809—Selective-repeat protocols
    • 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
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
    • H04L1/1829—Arrangements specially adapted for the receiver end
    • H04L1/1835—Buffer management
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
    • H04L65/40—Support for services or applications
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/0005—Control or signalling for completing the hand-off
    • H04W36/0055—Transmission or use of information for re-establishing the radio link
    • H04W36/0064—Transmission or use of information for re-establishing the radio link of control information between different access points
    • 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
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/1607—Details of the supervisory signal
    • H04L1/1614—Details of the supervisory signal using bitmaps
    • 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
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/1607—Details of the supervisory signal
    • H04L1/1621—Group acknowledgement, i.e. the acknowledgement message defining a range of identifiers, e.g. of sequence numbers
    • 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
    • H04L2001/0092—Error control systems characterised by the topology of the transmission link
    • H04L2001/0097—Relays
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W28/00—Network traffic management; Network resource management
    • H04W28/02—Traffic management, e.g. flow control or congestion control
    • H04W28/06—Optimizing the usage of the radio link, e.g. header compression, information sizing, discarding information
    • H04W28/065—Optimizing the usage of the radio link, e.g. header compression, information sizing, discarding information using assembly or disassembly of packets
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/0005—Control or signalling for completing the hand-off
    • H04W36/0055—Transmission or use of information for re-establishing the radio link
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W84/00—Network topologies
    • H04W84/02—Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
    • H04W84/04—Large scale networks; Deep hierarchical networks
    • H04W84/042—Public Land Mobile systems, e.g. cellular systems
    • H04W84/047—Public Land Mobile systems, e.g. cellular systems using dedicated repeater stations

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Detection And Prevention Of Errors In Transmission (AREA)

Abstract

patente de invenção: "método e aparelho para controlar transmissão de dados para downlink em um sistema de comunicação de retransmissão com múltiplos saltos". a fim de abordar o problema de retransmissão de camada de rlc existente na técnica anterior de que os dados de um usuário para downlink de um equipamento de usuário com acesso através de uma estação de retransmissão possam se perder devido a um handover, a presente invenção refere-se a solução com um método e um aparelho para controlar a transmissão de dados para downlink em um sistema de comunicação de retransmissão de múltiplos saltos de modo que quando um dispositivo de rede do próximo salto de uma estação base for uma estação de retransmissão, uma unidade de rlc da estação base transmite uma mensagem de indicação para uma unidade de pdcp da estação base, para acionar a unidade de pdcp da estação base para descartar uma sdu de pdcp correspondente a pelos menos uma pdu de pdcp, ao receber de um equipamento de usuário uma mensagem de identificação de envio vinda da estação retransmissora de acesso para identificar o envio de pelo menos uma pdu de pdcp para o equipamento do usuário. a retransmissão de acesso gera a mensagem de identificação de envio do equipamento do usuário mediante a recepção pelo equipamento do usuário de mensagens de identificação positiva para todas as pdus do rlc correspondentes à pdu de pdcp mínima. preferivelmente, informação relativa ao estado sobre se foi identificada uma sdu do rlc, a qual está armazenada entre a estação retransmissão de acesso e a estação base, pode ser sincronizada implicitamente.
BR112012003636A 2009-08-17 2009-08-17 método e aparelho para controlar transmissão de dados para downlink em um sistema de comunicação de retransmissão com múltiplos saltos BR112012003636A2 (pt)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2009/073308 WO2011020233A1 (zh) 2009-08-17 2009-08-17 多跳中继通信系统中对下行数据传输控制的方法和装置

Publications (1)

Publication Number Publication Date
BR112012003636A2 true BR112012003636A2 (pt) 2016-03-22

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BR112012003636A BR112012003636A2 (pt) 2009-08-17 2009-08-17 método e aparelho para controlar transmissão de dados para downlink em um sistema de comunicação de retransmissão com múltiplos saltos

Country Status (7)

Country Link
US (1) US20120140704A1 (pt)
EP (1) EP2469750A4 (pt)
JP (1) JP2013502755A (pt)
KR (1) KR20120048019A (pt)
CN (1) CN102449944B (pt)
BR (1) BR112012003636A2 (pt)
WO (1) WO2011020233A1 (pt)

Families Citing this family (37)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20130230059A1 (en) * 2011-09-02 2013-09-05 Qualcomm Incorporated Fragmentation for long packets in a low-speed wireless network
CN103260163A (zh) * 2012-02-17 2013-08-21 中兴通讯股份有限公司 一种无线电系统及其频谱资源重配方法
CN107819546B (zh) 2012-11-13 2023-07-11 华为技术有限公司 传输数据的方法、基站和用户设备
CN103975613B (zh) * 2012-11-29 2019-04-12 华为技术有限公司 一种数据传输的控制方法、装置及系统
CN107911201B (zh) * 2012-12-21 2021-10-15 华为技术有限公司 数据传输方法、装置及通信系统
US9648514B2 (en) * 2013-08-09 2017-05-09 Blackberry Limited Method and system for protocol layer enhancements in data offload over small cells
CN104518851A (zh) * 2013-09-27 2015-04-15 中兴通讯股份有限公司 一种数据处理方法及装置
CN104853382B (zh) * 2014-02-18 2020-08-25 中兴通讯股份有限公司 一种信息交互方法、系统以及基站
US20160013976A1 (en) * 2014-07-14 2016-01-14 Futurewei Technologies, Inc. Wireless Through Link Traffic Reduction
US9929847B2 (en) * 2014-12-23 2018-03-27 Qualcomm Incorporated Shortened block acknowledgement with fragmentation acknowledgement signaling
US10021596B2 (en) * 2016-03-30 2018-07-10 Industrial Technology Research Institute Communication system, communication device, base station and method thereof for D2D communications
CN107333298B (zh) * 2016-04-29 2020-03-24 电信科学技术研究院 一种数据传输方法及相关设备
US10785679B2 (en) * 2016-05-13 2020-09-22 Telecom Italia S.P.A. Method and system for loss mitigation during device to device communication mode switching
US20180097918A1 (en) * 2016-09-30 2018-04-05 Mediatek Inc. Segmentation and Concatenation for New Radio Systems
CN108024295B (zh) * 2016-11-03 2022-04-19 中兴通讯股份有限公司 中继转移方法及装置、终端、基站
SG11201903724QA (en) 2016-11-04 2019-05-30 Beijing Xiaomi Mobile Software Co Ltd Method and device for generating protocol data unit (pdu) packet
WO2018087154A1 (en) * 2016-11-08 2018-05-17 Telefonaktiebolaget Lm Ericsson (Publ) Optimization of logical channel processing for multiple transport blocks
US10021586B1 (en) * 2016-12-23 2018-07-10 Intel IP Corporation Pushing back packet not acknowledged by base station
CN108632326B (zh) * 2017-03-24 2020-10-30 电信科学技术研究院 一种协议数据单元传输数据的方法及装置
US11219091B2 (en) * 2017-05-05 2022-01-04 Huawei Technologies Co., Ltd. Data receiving status reporting method and apparatus
WO2018232559A1 (zh) * 2017-06-19 2018-12-27 北京小米移动软件有限公司 数据处理方法及装置、用户设备和计算机可读存储介质
WO2019035670A1 (en) 2017-08-16 2019-02-21 Samsung Electronics Co., Ltd. METHOD AND APPARATUS FOR TRANSMITTING AND RECEIVING DOUBLE PACKETS IN A NEXT GENERATION MOBILE COMMUNICATION SYSTEM
CN109842440B (zh) * 2017-11-27 2021-08-27 华为技术有限公司 一种通信方法、通信节点和系统
CN115103402A (zh) * 2018-05-10 2022-09-23 华为技术有限公司 数据处理的方法及设备
JP2021532619A (ja) * 2018-06-21 2021-11-25 オッポ広東移動通信有限公司Guangdong Oppo Mobile Telecommunications Corp., Ltd. シグナリング伝送方法、装置及びネットワークデバイス
CN110636549B (zh) * 2018-06-21 2022-04-12 华为技术有限公司 数据传输方法、网络设备以及终端设备
EP3811542A2 (en) * 2018-06-21 2021-04-28 Telefonaktiebolaget Lm Ericsson (Publ) Preventing/mitigating packet loss in iab systems
EP3811541A1 (en) * 2018-06-21 2021-04-28 Telefonaktiebolaget Lm Ericsson (Publ) Preventing/mitigating packet loss in integrated access backhaul (iab) networks
GB2574876A (en) * 2018-06-21 2019-12-25 Tcl Communication Ltd Transmission techniques in a cellular network
JP7189219B2 (ja) * 2018-08-08 2022-12-13 京セラ株式会社 中継装置
CN111490859A (zh) * 2019-01-29 2020-08-04 普天信息技术有限公司 一种arq模式的切换方法及装置
JP7072716B2 (ja) * 2019-03-01 2022-05-20 三菱電機株式会社 無線通信システム、送受信方法、プログラム、無線通信基地局装置、制御回路および制御方法
CN112584428B (zh) * 2019-09-27 2023-01-13 大唐移动通信设备有限公司 一种数据传输方法、装置及设备
CN112702752A (zh) * 2020-12-22 2021-04-23 展讯通信（上海）有限公司 通信方法、装置及设备
WO2022170612A1 (en) * 2021-02-11 2022-08-18 Qualcomm Incorporated Multiple feedback in relay-based communication
CN116962306A (zh) * 2022-04-19 2023-10-27 华为技术有限公司 数据传输的方法和通信装置
WO2024092657A1 (en) * 2022-11-03 2024-05-10 Nec Corporation Method, device and computer storage medium of communication

Family Cites Families (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1204724C (zh) * 2002-02-08 2005-06-01 华硕电脑股份有限公司 用于无线通信系统的数据传输的确认方法
CN101116277A (zh) * 2005-02-07 2008-01-30 三星电子株式会社 用于请求/传送移动通信系统的状态报告的方法和设备
CN103199971B (zh) * 2005-12-22 2017-03-15 美商内数位科技公司 由wtru实施的数据安全以及自动重复请求的方法和wtru
EP1863210B1 (en) * 2006-05-29 2012-07-18 Samsung Electronics Co., Ltd. Retransmission apparatus and method in wireless relay communication system
WO2007141617A1 (en) * 2006-06-02 2007-12-13 Nortel Networks Limited Ranging regions for wireless communication relay stations
CN101047431B (zh) * 2006-06-22 2011-02-02 华为技术有限公司 在含有中继站的通信系统中实现混合自动重传的方法
KR100982688B1 (ko) * 2006-09-13 2010-09-16 삼성전자주식회사 홉 단위 재전송을 적용하는 다중 홉 릴레이 시스템에서 패킷 버퍼링 장치 및 방법
CN101150498B (zh) * 2006-09-18 2012-06-20 华为技术有限公司 多跳无线中继通信系统及其下行数据传输方法
EP2070214B1 (en) * 2006-09-19 2014-12-31 ZTE (USA) Inc. Frame structure for multi-hop relay in wireless communication systems
US7957349B2 (en) * 2006-09-20 2011-06-07 Samsung Electronics Co., Ltd Handover method and apparatus in a mobile communication system
KR100938090B1 (ko) * 2006-10-19 2010-01-21 삼성전자주식회사 이동통신 시스템에서 핸드오버 수행 방법 및 장치
US7983302B2 (en) * 2006-11-07 2011-07-19 Nokia Corporation Control signaling techniques for wireless networks
KR100976733B1 (ko) * 2006-11-17 2010-08-18 삼성전자주식회사 멀티 홉 릴레이 시스템에서 효율적인 자동 재전송 요구 장치 및 방법
WO2008096304A2 (en) * 2007-02-09 2008-08-14 Nxp B.V. Transmission method, transmitter and data processing system comprising a transmitter
CN101383685A (zh) * 2007-09-07 2009-03-11 华为技术有限公司 下行混合自动重传的方法、系统及装置
KR100907978B1 (ko) * 2007-09-11 2009-07-15 엘지전자 주식회사 이동통신 시스템에서 ｐｄｃｐ 계층의 상태보고 전송 방법 및 수신장치
EP2051454A1 (en) * 2007-10-17 2009-04-22 Nokia Siemens Networks Oy Method and device for data communication and communication system comprising such device
CN101471756B (zh) * 2007-12-27 2011-05-25 上海无线通信研究中心 集中式调度的多跳中继下行系统中的harq方法
ATE500663T1 (de) * 2008-02-04 2011-03-15 Lg Electronics Inc Drahtloses kommunikationsverfahren zur übertragung einer folge von dateneinheiten zwischen einer drahtlosen vorrichtung und einem netzwerk
US8018890B2 (en) * 2008-06-25 2011-09-13 Intel Corporation Techniques using a hop-by-hop approach for automatic repeat request (ARQ) in wireless relay networks
US9203564B2 (en) * 2008-10-20 2015-12-01 Qualcomm Incorporated Data transmission via a relay station in a wireless communication system
US8402334B2 (en) * 2008-12-17 2013-03-19 Research In Motion Limited System and method for hybrid automatic repeat request (HARQ) functionality in a relay node
JP5402946B2 (ja) * 2009-01-29 2014-01-29 富士通株式会社 無線通信システム、無線通信方法および中継装置
PL2406893T3 (pl) * 2009-03-13 2020-02-28 Blackberry Limited Projekt kanału sterowania łącza przekaźnika
RU2496263C2 (ru) * 2009-03-17 2013-10-20 Хуавэй Текнолоджиз Ко., Лтд. Способ, устройство и система для отправки пакета данных
US8687591B2 (en) * 2009-04-27 2014-04-01 Qualcomm Incorporated Relay node user plane support
JP5355788B2 (ja) * 2009-06-17 2013-11-27 インターデイジタル パテント ホールディングス インコーポレイテッド 中継ノードとのハンドオーバを実施するための方法および装置

Also Published As

Publication number Publication date
CN102449944B (zh) 2015-11-25
US20120140704A1 (en) 2012-06-07
JP2013502755A (ja) 2013-01-24
EP2469750A4 (en) 2014-07-02
EP2469750A1 (en) 2012-06-27
KR20120048019A (ko) 2012-05-14
WO2011020233A1 (zh) 2011-02-24
CN102449944A (zh) 2012-05-09

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