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WO2007124635A1 - Procédé de mise en oeuvre d'une synchronisation de trames dans un système de communication sans fil - Google Patents

Procédé de mise en oeuvre d'une synchronisation de trames dans un système de communication sans fil Download PDF

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Publication number
WO2007124635A1
WO2007124635A1 PCT/CN2006/003761 CN2006003761W WO2007124635A1 WO 2007124635 A1 WO2007124635 A1 WO 2007124635A1 CN 2006003761 W CN2006003761 W CN 2006003761W WO 2007124635 A1 WO2007124635 A1 WO 2007124635A1
Authority
WO
WIPO (PCT)
Prior art keywords
channel signal
synchronization
frame
broadcast channel
timing
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/CN2006/003761
Other languages
English (en)
Chinese (zh)
Inventor
Shuqiang Xia
Yong Li
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ZTE Corp
Original Assignee
ZTE Corp
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 ZTE Corp filed Critical ZTE Corp
Publication of WO2007124635A1 publication Critical patent/WO2007124635A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/24—Radio transmission systems, i.e. using radiation field for communication between two or more posts
    • H04B7/26—Radio transmission systems, i.e. using radiation field for communication between two or more posts at least one of which is mobile
    • H04B7/2662—Arrangements for Wireless System Synchronisation
    • H04B7/2671—Arrangements for Wireless Time-Division Multiple Access [TDMA] System Synchronisation
    • H04B7/2678—Time synchronisation
    • H04B7/2681—Synchronisation of a mobile station with one base station
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W56/00—Synchronisation arrangements
    • H04W56/003—Arrangements to increase tolerance to errors in transmission or reception timing

Definitions

  • FIG. 1 is a schematic diagram of a BCH and SCH signal transmission timing according to the present invention
  • FIG. 2 is a schematic diagram of another BCH and SCH signal transmission timing according to the present invention
  • FIG. 3 is a flowchart of a frame synchronization implemented by a receiving end according to an embodiment of the present invention.
  • the SCH signal is represented by a rectangular frame including vertical lines in the figure, the numerals 1, 3 respectively indicate the first and second SCH symbols in one frame, and the reference numeral 5 indicates the first SCH signal in the next frame. Further, in this embodiment, the SCH signal is uniformly transmitted, and the SCH signal transmission interval is 5 ms; the BCH signal is represented by a rectangular frame including horizontal lines in the drawing. Reference numerals 2, 4 denote the first and second BCH symbols in one frame, respectively, and reference numeral 6 denotes the first BCH signal in the next frame.
  • the method for implementing frame synchronization provided by the present invention needs to meet the following conditions when transmitting frame information at the transmitting end:
  • the SCH and BCH signals are transmitted in a time division multiplexed manner, and each BCH is placed next to a SCH and is advanced or lagging adjacent to the SCH-determined time interval.
  • the number of BCH transmissions in one frame is two, one leading, one hysteresis is preferable, as shown in Figs.
  • the timing of the BCH phase ⁇ "SCH does not require a certain advance, one" after the band, alternately appears.
  • FIG. 3 is a flow chart showing a method for implementing frame synchronization by a mobile station at the receiving end.
  • Step 301 The mobile station uses the SCH signal in the received signal to capture the SCH signal timing.
  • the SCH signal is usually known to the mobile station, where the SCH signal is transmitted multiple times within one frame, so the timing of the SCH signal is relatively easy to capture. It should be noted that the method for capturing the SCH signal timing is not limited herein, and the methods in the prior art, such as the received signal and the local reference SCH signal match or other methods T are applied.
  • the coding and decoding mentioned in the present invention belong to the prior art, and the coding method adopted by the receiver corresponds to the coding method used by the transmitter, for example, the transmitter adopts Turbo coding, and the receiver adopts Turbo decoding, of course.
  • decoding Turbo so that you can choose the appropriate encoding and decoding method according to cost and performance.
  • judging whether the decoding result is correct such as detecting whether the decoding result can pass the CRC detection: if it can pass, it means that the decoding is correct; otherwise, it indicates the decoding error.

Landscapes

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

Abstract

Selon l'invention, un procédé de mise en oeuvre d'une synchronisation de trames dans un système de communication sans fil est utilisé en mode émission dans lequel les signaux SCH sont transmis de manière uniforme dans une trame. Au niveau du terminal d'émission, les signaux des canaux de synchronisation et les signaux des canaux de radiodiffusion sont transmis dans le mode multiplexage temporel; et chaque signal des canaux de radiodiffusion est adjacent à un signal des canaux de synchronisation et avance ou retarde d'un intervalle de temps défini par rapport au signal adjacent des canaux de synchronisation. Le procédé de l'invention intègre les données comprises dans les signaux SCH et dans les signaux BCH.
PCT/CN2006/003761 2006-05-01 2006-12-30 Procédé de mise en oeuvre d'une synchronisation de trames dans un système de communication sans fil Ceased WO2007124635A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN2006100606534A CN101068127B (zh) 2006-05-01 2006-05-01 一种无线通讯系统中实现帧同步的方法
CN200610060653.4 2006-05-01

Publications (1)

Publication Number Publication Date
WO2007124635A1 true WO2007124635A1 (fr) 2007-11-08

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2006/003761 Ceased WO2007124635A1 (fr) 2006-05-01 2006-12-30 Procédé de mise en oeuvre d'une synchronisation de trames dans un système de communication sans fil

Country Status (2)

Country Link
CN (1) CN101068127B (fr)
WO (1) WO2007124635A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013036021A3 (fr) * 2011-09-09 2013-05-02 Samsung Electronics Co., Ltd. Appareil et procédé de synchronisation et d'obtention d'informations système dans un système de communication sans fil

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110166093B (zh) * 2018-02-13 2021-06-29 华为技术有限公司 一种传输方法和通信设备

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1348655A (zh) * 1999-04-23 2002-05-08 高通股份有限公司 在多载波通信系统中发送同步信道消息的方法和装置
CN1354607A (zh) * 2000-11-20 2002-06-19 西门子公司 检测至少一个广播信道的方法和所属的无线通信系统
US20020181634A1 (en) * 2001-04-14 2002-12-05 Samsung Electronics Co., Ltd. Apparatus and method for acquiring frame synchronization in a mobile communication system
CN1501613A (zh) * 1999-02-26 2004-06-02 �����ɷ� Cdma无线通信系统中缩减同步时间的方法和系统

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100401190B1 (ko) * 1998-09-17 2003-12-31 삼성전자주식회사 부호분할다중접속통신시스템의동기채널을이용한프레임동기장치및방법

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1501613A (zh) * 1999-02-26 2004-06-02 �����ɷ� Cdma无线通信系统中缩减同步时间的方法和系统
CN1348655A (zh) * 1999-04-23 2002-05-08 高通股份有限公司 在多载波通信系统中发送同步信道消息的方法和装置
CN1354607A (zh) * 2000-11-20 2002-06-19 西门子公司 检测至少一个广播信道的方法和所属的无线通信系统
US20020181634A1 (en) * 2001-04-14 2002-12-05 Samsung Electronics Co., Ltd. Apparatus and method for acquiring frame synchronization in a mobile communication system

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013036021A3 (fr) * 2011-09-09 2013-05-02 Samsung Electronics Co., Ltd. Appareil et procédé de synchronisation et d'obtention d'informations système dans un système de communication sans fil
US9894624B2 (en) 2011-09-09 2018-02-13 Samsung Electronics Co., Ltd. Apparatus and method for synchronizing and obtaining system information in wireless communication system
US10244494B2 (en) 2011-09-09 2019-03-26 Samsung Electronics Co., Ltd. Apparatus and method for synchronizing and obtaining system information in wireless communication system
US10945224B2 (en) 2011-09-09 2021-03-09 Samsung Electronics Co., Ltd. Apparatus and method for synchronizing and obtaining system information in wireless communication system
US11683766B2 (en) 2011-09-09 2023-06-20 Samsung Electronics Co., Ltd. Apparatus and method for synchronizing and obtaining system information in wireless communication system

Also Published As

Publication number Publication date
CN101068127B (zh) 2010-09-08
CN101068127A (zh) 2007-11-07

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