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WO2008133453A1 - Procédé destiné à une collaboration spectrale dans un réseau local sans fil dynamique à sauts de fréquence - Google Patents

Procédé destiné à une collaboration spectrale dans un réseau local sans fil dynamique à sauts de fréquence Download PDF

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Publication number
WO2008133453A1
WO2008133453A1 PCT/KR2008/002369 KR2008002369W WO2008133453A1 WO 2008133453 A1 WO2008133453 A1 WO 2008133453A1 KR 2008002369 W KR2008002369 W KR 2008002369W WO 2008133453 A1 WO2008133453 A1 WO 2008133453A1
Authority
WO
WIPO (PCT)
Prior art keywords
wran
spectrum
chb
high priority
wrans
Prior art date
Application number
PCT/KR2008/002369
Other languages
English (en)
Inventor
Jinxia Cheng
Original Assignee
Samsung Electronics Co., Ltd.
Beijing Samsung Telecom R & D Center
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 Samsung Electronics Co., Ltd., Beijing Samsung Telecom R & D Center filed Critical Samsung Electronics Co., Ltd.
Publication of WO2008133453A1 publication Critical patent/WO2008133453A1/fr

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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
    • H04B1/713—Spread spectrum techniques using frequency hopping
    • H04B1/7143—Arrangements for generation of hop patterns
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W16/00—Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
    • H04W16/02—Resource partitioning among network components, e.g. reuse partitioning
    • H04W16/10—Dynamic resource partitioning

Definitions

  • the present invention relates to a wireless communication system based on cognitive radio, especially to a method of spectrum collaboration in a dynamic frequency-hopping wireless regional area network.
  • a frequency-hopping operation scheme based on dynamic frequency hopping is proposed in the above protocol for a WRAN system.
  • periodical frequency hopping between different idle channels is effectively adopted to drastically reduce the quiet period for in-band spectrum sensing.
  • FIG. 1 illustrates a process that WRANl 104 and WRAN2 105 implement agile frequency hops between CHA 101 channel, CHB 102 channel and CHC 103 channel.
  • WRANl 104 operates in an available band.
  • WRANl 104 hops to an idle channel CHB 102 to implement communication.
  • WRANl 104 hops to an idle channel CHC 103.
  • it sequentially hops from CHC 103 to CHA 101 and then to CHB 102 respectively within the three operation periods. Therefore, not only WRANl 104 and WRAN2 105 can be guaranteed to operate in idle channels, but also the CPEs can implement normal spectrum sensing during channels' quiet periods.
  • FIG. 2 illustrates a process that WRAN201 operates during three periods such as an initial spectrum sensing stage 202 and two operation stages 203 and 204.
  • CPEs for WRAN implement initial spectrum sensing 202 to detect an idle frequency band CHA in which this system can normally operate and an enabling time 205.
  • WRAN hops to CHA to transmit data as well as to perform spectrum sensing 203 on CH([0,A-n],[A+n,N]) to obtain an enabling time 206 for CHB.
  • WRAN hops to CHB and at the same time to implement spectrum sensing 204 on CH([0,B-n],[B+n,N]).
  • N is a total number of channels to be sensed, and n indicates a guard band.
  • the object of this invention is to provide a method for spectrum collaboration to solve the spectrum collision between multiple overlapped WRAN systems so as to guarantee that WRAN systems could operate more efficiently within free frequency bands.
  • a method for spectrum collaboration in a dynamic frequency- hopping wireless regional area network comprising steps of:
  • Figure 1 illustrates a dynamic frequency hopping process in multiple WRANs
  • Figure 2 illustrates a dynamic frequency hopping operation in a WRAN
  • Figure 3 illustrates spectrum collision between two overlapping WRANs
  • Figure 4 shows a structure of overlapping WRAN systems according to present invention
  • Figure 5 shows a flow of sub-channel division in the spectrum collaboration method according to present invention
  • Figure 6 shows a flow operated by a system according to present invention
  • Figure 7 shows a control signaling between two overlapping WRAN base stations according to present invention.
  • WRAN-A401 implements spectrum sensing and obtains CHB as its target frequency band for frequency hopping during a next period.
  • WRAN-B402 also implements spectrum sensing and obtains CHB as its target frequency band for frequency hopping during a next period.
  • spectrum collision occurs between WRAN- A401 and WRAN-B402.
  • the idea of the present invention is to implement band sharing of the idle channel CHB by two wireless regional area networks via signaling interaction between the control centers of the overlapping WRANs.
  • WRAN-A401 occupies CHB-parl 403
  • WRAN-B402 occupies CHB-part2 404.
  • Figure 5 illustrates the division and sharing of frequency resources between WRAN- A501 and WRAN-B502.
  • channel CHB is divided into N sub-channels 0,1,...,N-I, with sub-channels [k+n,N-l] allocated to WRAN-A501, and sub-channels [0,k-n] to WRAN-B502.
  • 2n sub-channels are preserved as guard band 503. Therefore, the effective bandwidth allocated to WRAN-A 501 is:
  • guard band parameter n is related to the overlapping area S between adjacent WRAN systems and the transmission power P for WRAN base station.
  • the bandwidth allocation parameter a is determined by the base station of the WRAN system with highest priority according to the bandwidth request information from the WRAN base station with lower priority. Details on specification of priority and the interactive control signaling will be given in present invention.
  • Figure 6 illustrates a flow operated by a system according to present invention.
  • 601 CPE in WRAN performs spectrum sensing and sends the spectrum sensing results to corresponding base station, and then 602 CPE waits.
  • 603 WRAN checks whether idle channel collides. If idle channel collides and 604 WRAN has detected any other idle channel, 605 WRAN determines whether the enabling time of any other idle channel exceeds the maximum time delay. 606 WRAN prepares to hop to the selected channel if the enabling time of any other idle channel does not exceed the maximum time delay. In the meantime, the idle channel does not collide in the step 603, 610 WRAN prepares to hop to the selected channel.
  • 607 WRAN determines whether to collide with the idle channel cooperation.
  • 608 WRAN prepares to hop to the some frequency bands of the idle channel such that WRAN can share the bandwidth of the idle channel. However, it does not occur to collide with the idle channel cooperation, in 609 WRAN prepares to hop to the selected channel.
  • FIG. 7 illustrates a control signaling between WRAN systems according to the present invention.
  • the WRAN system according to present invention operates as follows: 1. CPEs in WRAN-A and WRAN-B perfbrm spectrum sensing and send the spectrum sensing results to corresponding base stations, where the idle frequency bands are determined for next frequency hopping period.
  • base station 701 in WRAN-A and base station 702 in WRAN-B respectively broadcast message of Announcement_use_CHB703 to the WRANs around. Meanwhile they monitor the broadcast information from the WRANs.
  • WRAN-A detects the idle channel CHB before base station 702 in WRAN-B broadcasts the announcement signal. Therefore, WRAN-A system bears higher priority.
  • base station 701 in WRAN-A does not receive message of Announcement_use_CHB703 information from the WRANs around during the waiting period, it dynamically hops to CHB in the next period to transmit and receive data. If base station 701 in WRAN-A receives the message of Announcement_use_CHB704 and Announcement use CHC information from WRAN-B base station 702 to the WRANs around during the waiting period, it still dynamically hops to CHB in the next period to transmit and receive data.
  • base station 701 in WRAN-A only receives Announcement_use_CHB704 information from WRAN-B base station 702 to the WRANs around during the waiting period but the time stamp of the announcement information is later than that of WRAN-A, WRAN-A system is therefore specified to bear higher priority.
  • WRAN-B base station 702 sends a Req_co-use_CHB705 message as well as a Req_Bandwidth_WRAN-B 706 message to WRAN-A base station 701.
  • WRAN-A base station 702 determines whether to share CHB or not according to the Req_Bandwidth_WRAN-B 706 and its own service QoS requirements.
  • WRAN-A base station 701 sends a Rep_co-use-CHB707 response message to determine whether to share the bandwidth of CHB.
  • WRAN-A base station 701 schedules and allocates relevant idle frequency bands to WRAN-A and WRAN-B, and sends a bandwidth allocation control message "Bandwidth allocation CHB708" to WRAN-B base station 702.

Landscapes

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

Abstract

L'invention concerne un procédé destiné à une collaboration spectrale dans un réseau local sans fil dynamique à sauts de fréquence. Ce procédé comprend les étapes suivantes: les équipements de bâtiments clients de tous les réseaux locaux sans fil (WRAN) effectuent une détection spectrale et renvoient des informations pertinentes concernant les voies au repos aux stations de base de commande correspondantes; un WRAN de haute priorité détermine une attribution de ressources spectrales pour le système WRAN dans un état de collision spectrale. Simultanément, il est possible de supprimer efficacement les problèmes importants provoquant un retard temporel considérable qui sont causés par le manque de ressources de voies au repos libres destinées à des WRAN adjacents. Ainsi, l'invention permet d'aider efficacement l'opérateur à consolider efficacement les ressources spectrales afin d'améliorer à la fois la qualité et la fiabilité de communication à l'intérieur de la couverture du WRAN tout entier.
PCT/KR2008/002369 2007-04-26 2008-04-25 Procédé destiné à une collaboration spectrale dans un réseau local sans fil dynamique à sauts de fréquence WO2008133453A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN200710098048.0 2007-04-26
CNA2007100980480A CN101296139A (zh) 2007-04-26 2007-04-26 动态跳频无线区域网络中的频谱合作方法

Publications (1)

Publication Number Publication Date
WO2008133453A1 true WO2008133453A1 (fr) 2008-11-06

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Application Number Title Priority Date Filing Date
PCT/KR2008/002369 WO2008133453A1 (fr) 2007-04-26 2008-04-25 Procédé destiné à une collaboration spectrale dans un réseau local sans fil dynamique à sauts de fréquence

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CN (1) CN101296139A (fr)
WO (1) WO2008133453A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102378286A (zh) * 2010-08-05 2012-03-14 华为技术有限公司 集中式网络的频谱切换方法、用户终端、基站和系统
CN104660302A (zh) * 2015-02-11 2015-05-27 北京科技大学 基于bitmap的协商自适应跳频方法
US9848339B2 (en) 2011-11-07 2017-12-19 Qualcomm Incorporated Voice service solutions for flexible bandwidth systems
US10111125B2 (en) 2011-11-07 2018-10-23 Qualcomm Incorporated Bandwidth information determination for flexible bandwidth carriers

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100216478A1 (en) * 2009-02-20 2010-08-26 Milind M Buddhikot Method and apparatus for operating a communications arrangement comprising femto cells
CN102624465B (zh) * 2011-01-30 2016-01-20 中兴通讯股份有限公司 一种认知无线电的感知辅助的方法及系统
CN110719640B (zh) 2013-07-30 2023-09-01 索尼公司 频谱管理装置
CN105451352B (zh) * 2015-11-30 2018-12-11 电子科技大学 一种支持节点优先级的认知无线网络跳频通信方法
CN113346976B (zh) * 2020-03-02 2024-04-12 华为技术有限公司 一种频谱资源配置的方法、网络设备和系统

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007088940A (ja) * 2005-09-22 2007-04-05 Toshiba Corp コグニティブ通信システムおよびコグニティブ通信方法

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007088940A (ja) * 2005-09-22 2007-04-05 Toshiba Corp コグニティブ通信システムおよびコグニティブ通信方法

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
BERLEMANN ET AL.: "Spectrum Load Smoothing for Optimized Spectrum Utilization - Rationale and Algorithm", WIRELESS COMMUNICATIONS AND NETWORKING CONFERENCE, 2005. IEEE, 13 March 2005 (2005-03-13) - 17 March 2005 (2005-03-17), pages 735 - 740, XP010791262 *
ZHENG ET AL.: "Device-centric Spectrum Management", FIRST IEEE INTERNATIONAL SYMPOSIUM ON NEW FRONTIERS IN DYNAMIC SPECTRUM ACCESS NETWORK, 2005. DYSPAN 2005, 8 November 2005 (2005-11-08) - 11 November 2005 (2005-11-11), pages 56 - 65, XP010855099 *

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102378286A (zh) * 2010-08-05 2012-03-14 华为技术有限公司 集中式网络的频谱切换方法、用户终端、基站和系统
US9848339B2 (en) 2011-11-07 2017-12-19 Qualcomm Incorporated Voice service solutions for flexible bandwidth systems
US10111125B2 (en) 2011-11-07 2018-10-23 Qualcomm Incorporated Bandwidth information determination for flexible bandwidth carriers
US10667162B2 (en) 2011-11-07 2020-05-26 Qualcomm Incorporated Bandwidth information determination for flexible bandwidth carriers
CN104660302A (zh) * 2015-02-11 2015-05-27 北京科技大学 基于bitmap的协商自适应跳频方法

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