WO2009012618A1 - Procédé de transmission de données entre une station de base et une station mobile et station de base pour la mise en œuvre du procédé - Google Patents

Procédé de transmission de données entre une station de base et une station mobile et station de base pour la mise en œuvre du procédé Download PDF

Info

Publication number
WO2009012618A1
WO2009012618A1 PCT/CN2007/002257 CN2007002257W WO2009012618A1 WO 2009012618 A1 WO2009012618 A1 WO 2009012618A1 CN 2007002257 W CN2007002257 W CN 2007002257W WO 2009012618 A1 WO2009012618 A1 WO 2009012618A1
Authority
WO
WIPO (PCT)
Prior art keywords
subframe
mobile station
base station
allocation information
data
Prior art date
Application number
PCT/CN2007/002257
Other languages
English (en)
Chinese (zh)
Inventor
Dong Li
Original Assignee
Alcatel Shanghai Bell Co., Ltd.
Alcatel 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 Alcatel Shanghai Bell Co., Ltd., Alcatel Lucent filed Critical Alcatel Shanghai Bell Co., Ltd.
Priority to PCT/CN2007/002257 priority Critical patent/WO2009012618A1/fr
Publication of WO2009012618A1 publication Critical patent/WO2009012618A1/fr

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/08—Access restriction or access information delivery, e.g. discovery data delivery
    • 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
    • H04L5/0001—Arrangements for dividing the transmission path
    • H04L5/0003—Two-dimensional division
    • H04L5/0005—Time-frequency
    • H04L5/0007—Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT
    • 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
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0044—Arrangements for allocating sub-channels of the transmission path allocation of payload
    • 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
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0058—Allocation criteria
    • H04L5/006—Quality of the received signal, e.g. BER, SNR, water filling
    • 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
    • H04L5/0091—Signaling for the administration of the divided path
    • H04L5/0092—Indication of how the channel is divided
    • 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
    • H04L25/0228—Channel estimation using sounding signals with direct estimation from sounding signals
    • 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
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/08—Access point devices
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W92/00—Interfaces specially adapted for wireless communication networks
    • H04W92/04—Interfaces between hierarchically different network devices
    • H04W92/10—Interfaces between hierarchically different network devices between terminal device and access point, i.e. wireless air interface

Definitions

  • the present invention relates to the field of mobile communications, and more particularly to a method for transmitting data between a base station and a mobile station and a base station implementing the method, which can fully utilize the advantages of the multi-carrier transmission technology and the single-carrier transmission technology, thereby reducing The complexity of the system implementation and provides greater flexibility.
  • Background technique
  • Orthogonal Frequency Division Multiplexing OFDM
  • Orthogonal Frequency Division Multiple Access OFDM
  • OFDM Orthogonal Frequency Division Multiple Access
  • OF frequency division multiple access
  • the extended function of the DFT transform (discrete Fourier transform) at the transmitter allows the output signal to be regarded as a signal formed after the pure single carrier signal is interpolated, thus reducing the output signal relative to the 0FDM signal. Range of fluctuations.
  • a typical physical transmission frame structure using single carrier transmission techniques is shown in FIG.
  • the SC-FDMA transmission technique has disadvantages such as a slight performance deterioration with a slight increase in complexity.
  • the present invention has been made to overcome the above-mentioned deficiencies of the prior art, and an object of the present invention is to provide a method for transmitting data between a base station and a mobile station and a base station implementing the same, which can fully utilize multi-carrier transmission technology and single carrier transmission.
  • the respective advantages of the technology thereby reducing the complexity of the system implementation and providing greater flexibility.
  • a method for transmitting data between a base station and a mobile station comprising: the base station generating partition allocation information according to channel estimation of a training sequence from the mobile station, and indicating to the mobile station Determining, by using the partition allocation information, whether to allocate data for the mobile station to a multi-carrier area of the subframe or a single-carrier area allocated to the subframe, and forming a subframe; and transmitting between the base station and the mobile station The resulting sub-frame.
  • the channel estimation of the training sequence comprises: performing, by the base station, a signal to interference and noise ratio estimation according to a training sequence sent by the mobile station in an initial stage of access, and comparing the estimated signal to interference and noise ratio with a predetermined threshold. It is determined whether the data for the mobile station is allocated to the multi-carrier area of the subframe or to the single-carrier area of the subframe.
  • the channel estimation of the training sequence further comprises: if the estimated signal to interference and noise ratio is greater than a predetermined threshold, indicating that the mobile station is close to the base station, and allocating data for the mobile station close to the base station to the subframe. Carrier region; if the estimated signal to interference and noise ratio is less than or equal to a predetermined threshold, indicating that the mobile station is away from the base station or at the cell edge, and allocates data for the mobile station remote from the base station to the single carrier region of the subframe.
  • said step of transmitting said formed subframe between said base station and said mobile station comprises transmitting said formed subframe in an uplink direction from said mobile station to said base station.
  • the base station determines, according to the partition allocation information, whether to extract its own data from a multi-carrier area or a single-carrier area of the subframe.
  • said step of transmitting said formed subframe between said base station and said mobile station comprises transmitting said formed subframe in a downlink direction from said base station to said mobile station.
  • the mobile station determines, according to the partition allocation information, whether to extract its own data from a multi-carrier area or a single-carrier area of the subframe.
  • the partition allocation information is indicated to the mobile station by using a data allocation signaling message in the downlink subframe.
  • the size of the multi-carrier area and the single-carrier area in the subframe dynamically changes from subframe to subframe.
  • a base station for receiving data from a mobile station, comprising: partition allocation information generating means for generating partition allocation information based on channel estimation of a training sequence from the mobile station; partition allocation information indicating means, moving The station indicates the partition allocation information, so that the mobile station uses the partition allocation information to determine whether to allocate data for the mobile station to the multi-carrier area of the subframe or to the single-carrier area of the subframe, and form a subframe; and the subframe
  • the data receiving apparatus determines, after receiving the formed subframe from the mobile station, whether to extract its own data from the multi-carrier area or the single-carrier area of the subframe according to the partition allocation information.
  • a base station for transmitting data to a mobile station, comprising: partition allocation information generating means for generating partition allocation information based on channel estimation of a training sequence from the mobile station; a subframe data forming means, Determining, by using the partition allocation information, whether to allocate data for the mobile station to the multi-carrier area of the subframe or to the single-carrier area of the subframe, and forming a subframe; and partition allocation information indicating means for indicating the partition allocation to the mobile station After the mobile station receives the formed subframe, it is determined according to the partition allocation information whether the self data is extracted from the multi-carrier area or the single-carrier area of the subframe.
  • FIG. 1 is a schematic diagram of a format of a typical physical transmission frame using a multi-carrier transmission technology in the prior art
  • FIG. 2 is a schematic diagram of a format of a typical physical transmission frame using a single-carrier transmission technology in the prior art
  • FIG. 3 is a schematic diagram of a physical transmission frame according to the present invention. Schematic diagram of a mixed subframe structure for multi-carrier transmission and single-carrier transmission;
  • FIG. 4 is a format diagram of an example of a hybrid subframe structure for uplink transmission in accordance with the present invention.
  • Figure 5 is a flowchart of a method of transmitting data between a base station and a mobile station in accordance with the present invention
  • Figure 6 is a block diagram showing the structure of a base station receiving data from a mobile station according to an embodiment of the present invention
  • FIG. 7 is a structural block diagram of a base station that transmits data to a mobile station according to another embodiment of the present invention.
  • the present invention proposes a method for transmitting data between a base station and a mobile station and a base station implementing the method, including a novel hybrid subframe structure for using multi-carrier transmission technology and The flexibility of single carrier transmission technology is combined.
  • FIG. 3 is a diagram showing the format of a hybrid subframe structure for multi-carrier transmission and single-carrier transmission in accordance with the present invention.
  • a multi-carrier area can be allocated in the downlink direction (from the base station to the mobile station) or in the uplink direction (from the mobile station to the base station).
  • SCZ single carrier area
  • multi-carrier transmission techniques such as OFDM can be applied to achieve ⁇ frequency efficiency and capacity
  • SCZ single carrier transmission techniques, such as SC-FDMA, can be applied to provide lower power fluctuations and thus provide High signal to noise ratio and cellular coverage area are obtained.
  • a preamble and a MAP (Data Allocation Signaling) message may be located at a downlink subframe.
  • the preamble and MAP messages as shown in Figure 3 may not be in the uplink subframe.
  • the partition allocation information for MCZ and SCZ can be sent in the start symbol (e.g., in the downlink or uplink MAP message).
  • the starting symbols will be transmitted using the default transmission technique, for example, using multi-carrier transmission techniques. It should be noted that the sizes of MCZ and SCZ can be dynamically changed from subframe to frame.
  • One of the applications of the hybrid subframe structure according to the present invention is that: the data of the mobile station close to the base station is allocated to the MCZ to utilize the high spectral efficiency of the multi-carrier transmission technique, the inherent robustness to narrow-band interference and multipath fading. Equally, the data of the mobile station remote from the base station or at the cell edge is allocated to scz to achieve a relatively high received signal level and the like.
  • FIG. 4 is a format diagram of an example of a hybrid subframe structure for uplink transmission in accordance with the present invention.
  • N M sub-loads are defined in the uplink subframe Wave symbols (e.g. OFDM symbols) and the single-carrier multi-carrier region region having the N s single-carrier symbols (e.g. SC- FDMA symbols).
  • the partition allocation information related to the definition of MCZ and SCZ will be transmitted to the mobile station in the MAP message of the downlink subframe.
  • Figure 5 is a flow diagram of a method of transmitting data between a base station and a mobile station in accordance with the present invention.
  • the base station in step 501, the base station generates partition allocation information based on channel estimation of the training sequence from the mobile station, and indicates the partition allocation information to the mobile station.
  • partition allocation is usually done by the base station.
  • the mobile station transmits a training sequence (used to measure the distance and delay between the base station and the mobile station, and for power and signal-to-noise ratio measurement, etc.) during the initial phase of access.
  • the base station performs an estimate of the signal to interference and noise ratio (SINR) based on the received training sequence.
  • SINR signal to interference and noise ratio
  • the measured signal to interference and noise ratio is greater than a predetermined threshold, it indicates that the mobile station is close to the base station, and thus the path loss is small, and the transmitted signal can tolerate a higher peak-to-average ratio. Therefore, multi-carrier transmission is used at this time. ⁇ ⁇ , the data for the mobile station close to the base station is allocated to the multi-carrier area of the sub-frame. On the other hand, if the measured signal to interference and noise ratio is less than or equal to the predetermined threshold, the single carrier transmission mode is used, that is, data for the mobile station remote from the base station is allocated to the single carrier region of the subframe. At this time, since the user signal-to-noise ratio is limited, the single-carrier transmission can effectively increase the power of the actual transmitted signal, so that the received signal-to-noise ratio is improved.
  • step 503 the partition allocation information is used to determine whether to allocate data for the mobile station to the multi-carrier area of the subframe or to the single-carrier area of the subframe, and form a subframe.
  • step 505 the formed subframe is transmitted between the base station and the mobile station. It should be noted that the formed subframe can be transmitted either in the uplink direction or in the downlink direction. The subframe is formed on the mobile station side when uplink is transmitted, and is formed on the base station side when downlink transmission.
  • Figure 6 is a block diagram showing the structure of a base station receiving data (uplink transmission) from a mobile station in accordance with one embodiment of the present invention.
  • a base station includes: a partition allocation information generating means 601, a partition allocation information indicating means 603, and a subframe data receiving means 605.
  • the partition allocation information generating means 601 generates partition allocation information based on channel estimation of the training sequence from the mobile station.
  • the partition allocation information indicating means 603 indicates the partition allocation information to the mobile station, so that the mobile station uses the partition allocation information to determine whether to allocate data for the mobile station to the multi-carrier area of the subframe or to the single-carrier area of the subframe, And form a sub-frame.
  • 7 is a structural block diagram of a base station that transmits data (downlink transmission) to a mobile station according to another embodiment of the present invention.
  • a base station includes: a partition allocation information generating apparatus
  • the partition allocation information generating means 701 generates partition allocation information based on channel estimation of the training sequence from the mobile station.
  • the subframe data forming means 703 determines whether the data for the mobile station is allocated to the multi-carrier area of the subframe or the single-carrier area allocated to the subframe by using the partition allocation information, and forms a subframe.
  • the partition allocation information indication means 705 indicates the partition allocation information to the mobile station, so that after the mobile station receives the formed subframe, it determines whether it is from the multi-carrier area or the single-carrier area of the subframe according to the partition allocation information. Extract your own data.
  • multi-carrier transmission techniques have high spectral efficiency, inherent robustness to narrowband interference and multipath fading; while single carrier transmission techniques have relatively low power fluctuations and frequency domain equalization capabilities. Therefore, according to the present invention, multi-carrier transmission technology and single-carrier transmission technology can be fully utilized by allocating user data under different conditions (for example, away from a base station or close to a base station) to a multi-carrier area or a single-carrier area according to partition allocation information. Their respective advantages.
  • the CP (Cyclic Prefix) structure and the DFT-based generation of the single carrier region signal are similar to the multi-carrier region, which means that the complexity is reduced to a lower degree in implementation, and the two regions can share the same set. Structural parameters.
  • the hybrid subframe structure according to the present invention can be degraded to a conventional single carrier transmission based subframe structure or a multicarrier transmission based subframe structure, and therefore, can well conform to the usual frame structure based on multicarrier transmission and The frame structure based on single carrier transmission is simultaneously compatible.

Landscapes

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

Abstract

L'invention concerne un procédé de transmission de données entre une station de base (BS) et une station mobile (MS), comprenant les étapes selon lesquelles : la station de base génère des informations de distribution sur zone à partir d'une estimation de canal d'une séquence d'apprentissage envoyée par la station mobile, fournit les informations de distribution sur zone à la station mobile, détermine si elle doit distribuer les données pour la station mobile sur une zone multi-porteuse d'une sous-trame ou sur une zone mono-porteuse de la sous-trame à partir des informations de distribution sur zone, et génère la sous-trame puis la transmet de la station de base à la station mobile.
PCT/CN2007/002257 2007-07-25 2007-07-25 Procédé de transmission de données entre une station de base et une station mobile et station de base pour la mise en œuvre du procédé WO2009012618A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/CN2007/002257 WO2009012618A1 (fr) 2007-07-25 2007-07-25 Procédé de transmission de données entre une station de base et une station mobile et station de base pour la mise en œuvre du procédé

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2007/002257 WO2009012618A1 (fr) 2007-07-25 2007-07-25 Procédé de transmission de données entre une station de base et une station mobile et station de base pour la mise en œuvre du procédé

Publications (1)

Publication Number Publication Date
WO2009012618A1 true WO2009012618A1 (fr) 2009-01-29

Family

ID=40280976

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2007/002257 WO2009012618A1 (fr) 2007-07-25 2007-07-25 Procédé de transmission de données entre une station de base et une station mobile et station de base pour la mise en œuvre du procédé

Country Status (1)

Country Link
WO (1) WO2009012618A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9484123B2 (en) 2011-09-16 2016-11-01 Prc-Desoto International, Inc. Conductive sealant compositions
US20220046434A1 (en) * 2020-08-07 2022-02-10 Arris Enterprises Llc Access point device, method, apparatrus and medium

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1466297A (zh) * 2002-06-13 2004-01-07 华为技术有限公司 一种自适应调制与编码方法
CN1484398A (zh) * 2002-08-07 2004-03-24 京瓷株式会社 无线通信系统
US20050032478A1 (en) * 2003-08-08 2005-02-10 Stephens Adrian P. Trained data transmission for communication systems
CN1582553A (zh) * 2001-07-06 2005-02-16 格鲁斯番维拉塔公司 被配置为使用混合波形结构来进行通信的无线通信系统

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1582553A (zh) * 2001-07-06 2005-02-16 格鲁斯番维拉塔公司 被配置为使用混合波形结构来进行通信的无线通信系统
CN1466297A (zh) * 2002-06-13 2004-01-07 华为技术有限公司 一种自适应调制与编码方法
CN1484398A (zh) * 2002-08-07 2004-03-24 京瓷株式会社 无线通信系统
US20050032478A1 (en) * 2003-08-08 2005-02-10 Stephens Adrian P. Trained data transmission for communication systems

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9484123B2 (en) 2011-09-16 2016-11-01 Prc-Desoto International, Inc. Conductive sealant compositions
US20220046434A1 (en) * 2020-08-07 2022-02-10 Arris Enterprises Llc Access point device, method, apparatrus and medium
US11785481B2 (en) * 2020-08-07 2023-10-10 Arris Enterprises Llc Access point device, method, apparatrus and medium

Similar Documents

Publication Publication Date Title
WO2018177196A1 (fr) Procédé de transmission de données, ainsi que dispositif et système associés
US10791563B2 (en) Method and apparatus for reporting channel state information in wireless communication system
JP5503756B2 (ja) ダウンリンクｐｄｓｃｈ電力設定のための方法及び装置
JP6931106B2 (ja) 屋外伝搬チャネルをサポートするためのｗｌａｎ設計
WO2018143405A1 (fr) Dispositif de station de base, dispositif terminal, procédé de communication et circuit intégré
CN110249599A (zh) 基站装置、终端装置、通信方法以及集成电路
US8169959B2 (en) System aided PAPR reduction scheme based on TR algorithm
CN116170264A (zh) 基于滤波的信号发送、接收方法及相应的发射机与接收机
US20080089312A1 (en) Method and apparatus for flexible pilot pattern
WO2019156082A1 (fr) Dispositif de communication et procédé de communication
WO2009003330A1 (fr) Procédé servant à résoudre la non-contrôlabilité de la densité d'un spectre de puissance d'un terminal dans un système ofdma
JPWO2018123468A1 (ja) 基地局装置、端末装置、通信方法、および、集積回路
JP2016500964A (ja) ユーザ機器の無線フレーム設定方法及びユーザ機器、並びに基地局の無線フレーム設定方法及び基地局
US20140169326A1 (en) Synchronization
TW200939722A (en) Multiplexing PUCCH information
US20110164572A1 (en) Method of Transmitting Control Signal in Multi-Cell Cooperative Wireless Communication System
US20070104280A1 (en) Wireless data transmission method, and corresponding signal, system, transmitter and receiver
WO2018192471A1 (fr) Procédé et dispositif de transmission de signal de référence de liaison montante
CN107154907A (zh) 基于滤波的信号发送、接收方法及相应的发射机与接收机
JP2008211411A (ja) 無線通信システムおよび端末
CN115462042A (zh) 利用伪随机带内音调预留的峰均功率比降低
WO2017075789A1 (fr) Dispositif, procédé et système permettant de transmettre un signal de référence
JP2008048424A (ja) 無線伝送システム、ソース装置、無線伝送方法及びコンピュータプログラム
TWI702872B (zh) 多長zt dft-s-ofdm傳輸
JP2010199902A (ja) 無線基地局および送信電力制御方法

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 07785172

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 07785172

Country of ref document: EP

Kind code of ref document: A1