WO2009049537A1 - Procédé et dispositif de transmission de données sous h-fdd - Google Patents

Procédé et dispositif de transmission de données sous h-fdd Download PDF

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Publication number
WO2009049537A1
WO2009049537A1 PCT/CN2008/072630 CN2008072630W WO2009049537A1 WO 2009049537 A1 WO2009049537 A1 WO 2009049537A1 CN 2008072630 W CN2008072630 W CN 2008072630W WO 2009049537 A1 WO2009049537 A1 WO 2009049537A1
Authority
WO
WIPO (PCT)
Prior art keywords
frame
subframes
subframe
group
downlink
Prior art date
Application number
PCT/CN2008/072630
Other languages
English (en)
Chinese (zh)
Inventor
Hua Cao
Jianjun Yang
Original Assignee
Huawei Technologies Co., Ltd.
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 Huawei Technologies Co., Ltd. filed Critical Huawei Technologies Co., Ltd.
Publication of WO2009049537A1 publication Critical patent/WO2009049537A1/fr

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/14—Two-way operation using the same type of signal, i.e. duplex
    • H04L5/16—Half-duplex systems; Simplex/duplex switching; Transmission of break signals non-automatically inverting the direction of transmission
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/12—Wireless traffic scheduling

Definitions

  • Each SS is assigned to one of the groups, group 1 or group 2, which can be notified by the BS to which group the SS belongs to when accessing the network, or the SS uses a predetermined algorithm according to its own identification. Calculate which group you belong to and so on.
  • the downlink frame is divided into two channels, and the downlink frame is divided into two subframes, and each subframe has its own mapping.
  • the length of the sub-frames included in each group superimposed after the change position is greater than or equal to one downlink frame to remove the preamble length.
  • the length of the sub-frames included in each group superimposed after the change position is greater than or equal to the length of one downlink frame to remove the preamble and the common mapping.
  • the SSs in the group 1, the group 2, the group 3, and the group 4 can traverse all the locations of the data regions in the downlink frame unsteadily according to the positions of the subframes corresponding to the group to which the group belongs, thereby improving the receiving asynchronous neighbor BS.
  • the success rate of the leader is the case where the number of downlink frames is equal to the number of packets.
  • the case of unequal is introduced, and the object of the embodiment of the present invention can also be achieved.
  • the purpose of this embodiment can be achieved by the subframes included in the subframes having different positions in each downlink frame in the period.
  • the length of the framing included in the packet superimposed after the change position is greater than or equal to the length of each downlink frame except the preamble and the mapping; in the framing mode 2, the packet included in the packet is guaranteed.
  • the length of the frame superimposed after the change position is greater than or equal to the length of each downlink frame to remove the preamble; in the framing mode three, the length of the framing included in the packet after the change position is greater than or equal to each downlink frame, and the preamble and the common map are removed. Length; can greatly improve the reception of asynchronous neighbors The success rate of the BS preamble.
  • Step 204 Send the continuous downlink frame.
  • the SS can receive data at different positions of the downlink frame in these periods, thereby improving the success rate of receiving the asynchronous neighbor BS preamble.
  • FIG. 12 is a structural block diagram of an apparatus embodiment of the present invention. As shown in the figure, the framing unit 121, the combining unit 122, the assigning unit 123, and the sending unit 124 are included, where:
  • the sending unit 124 sends the plurality of consecutive downlink frames that include the plurality of packet subframes, and instructs the user station to receive data on a corresponding subframe of each frame corresponding to the group.

Landscapes

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

Abstract

Le mode de réalisation de la présente invention porte sur un procédé et un dispositif de transmission de données sous duplexage par répartition en fréquence à l'alternat (H-FDD) pour favoriser la probabilité de succès de la station d'abonné recevant le signal provenant de la station de base voisine asynchrone sous H-FDD. Dans le procédé de transmission de données de la présente invention, chaque trame des multiples trames de liaison descendante contiguës est divisée en plus d'une sous-trame, toutes les sous-trames des trames de liaison descendante sont divisées en X groupes pour amener les positions des sous-trames dans chaque groupe à être différentes dans chaque trame, chaque station d'abonné est allouée à un groupe desdits multiples groupes afin d'indiquer à la station d'abonné dudit groupe de recevoir des données aux positions correspondantes dans chaque trame, et lesdites multiples trames de liaison descendante contiguës sont envoyées.
PCT/CN2008/072630 2007-10-12 2008-10-09 Procédé et dispositif de transmission de données sous h-fdd WO2009049537A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN200710123934.4 2007-10-12
CN2007101239344A CN101409613B (zh) 2007-10-12 2007-10-12 半频分双工下的数据传送方法及装置

Publications (1)

Publication Number Publication Date
WO2009049537A1 true WO2009049537A1 (fr) 2009-04-23

Family

ID=40567019

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2008/072630 WO2009049537A1 (fr) 2007-10-12 2008-10-09 Procédé et dispositif de transmission de données sous h-fdd

Country Status (2)

Country Link
CN (1) CN101409613B (fr)
WO (1) WO2009049537A1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102450067B (zh) * 2009-03-02 2014-04-02 华为技术有限公司 实现无线传输调度的方法及装置
JP5452716B2 (ja) * 2009-06-17 2014-03-26 エルジー エレクトロニクス インコーポレイティド Ｈ―ｆｄｄ動作をサポートするフレーム構造を用いて通信を行う方法
CN102404852B (zh) * 2010-09-16 2016-03-30 中兴通讯股份有限公司 多用户分组标识、获取方法、接入点及站点
CN108738087B (zh) * 2017-04-24 2022-01-25 中兴通讯股份有限公司 一种切换方法、基站及终端

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007048478A1 (fr) * 2005-10-26 2007-05-03 Mitsubishi Electric Information Technology Centre Europe B.V. Procede et appareil de communication de sous-trame de liaison ascendante et descendante dans un systeme de communications semi-duplex
CN1960209A (zh) * 2005-10-31 2007-05-09 上海原动力通信科技有限公司 频分双工模式下的通信方法及设备
CN1960352A (zh) * 2005-10-31 2007-05-09 华为技术有限公司 基于ofdma－fdd的无线中转通信系统及方法
CN101047466A (zh) * 2006-03-31 2007-10-03 中兴通讯股份有限公司 Wimax系统中下行区间使用码和上行区间使用码的确定方法

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007048478A1 (fr) * 2005-10-26 2007-05-03 Mitsubishi Electric Information Technology Centre Europe B.V. Procede et appareil de communication de sous-trame de liaison ascendante et descendante dans un systeme de communications semi-duplex
CN1960209A (zh) * 2005-10-31 2007-05-09 上海原动力通信科技有限公司 频分双工模式下的通信方法及设备
CN1960352A (zh) * 2005-10-31 2007-05-09 华为技术有限公司 基于ofdma－fdd的无线中转通信系统及方法
CN101047466A (zh) * 2006-03-31 2007-10-03 中兴通讯股份有限公司 Wimax系统中下行区间使用码和上行区间使用码的确定方法

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
"Definitions for H-FDD mode in OFDMA", IEEE 802.16 BROADBAND WIRELESS ACCESS WORKING GROUP, 1 November 2004 (2004-11-01) *

Also Published As

Publication number Publication date
CN101409613B (zh) 2010-12-08
CN101409613A (zh) 2009-04-15

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