JP4667100B2 - 無線通信装置および無線通信システム - Google Patents
無線通信装置および無線通信システム Download PDFInfo
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- JP4667100B2 JP4667100B2 JP2005102873A JP2005102873A JP4667100B2 JP 4667100 B2 JP4667100 B2 JP 4667100B2 JP 2005102873 A JP2005102873 A JP 2005102873A JP 2005102873 A JP2005102873 A JP 2005102873A JP 4667100 B2 JP4667100 B2 JP 4667100B2
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- wireless communication
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Classifications
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- 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
- H04W48/12—Access restriction or access information delivery, e.g. discovery data delivery using downlink control channel
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
- G06F21/60—Protecting data
- G06F21/606—Protecting data by securing the transmission between two devices or processes
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2221/00—Indexing scheme relating to security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
- G06F2221/21—Indexing scheme relating to G06F21/00 and subgroups addressing additional information or applications relating to security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
- G06F2221/2101—Auditing as a secondary aspect
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2221/00—Indexing scheme relating to security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
- G06F2221/21—Indexing scheme relating to G06F21/00 and subgroups addressing additional information or applications relating to security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
- G06F2221/2151—Time stamp
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/02—Power saving arrangements
- H04W52/0209—Power saving arrangements in terminal devices
- H04W52/0212—Power saving arrangements in terminal devices managed by the network, e.g. network or access point is master and terminal is slave
- H04W52/0216—Power saving arrangements in terminal devices managed by the network, e.g. network or access point is master and terminal is slave using a pre-established activity schedule, e.g. traffic indication frame
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/02—Power saving arrangements
- H04W52/0209—Power saving arrangements in terminal devices
- H04W52/0212—Power saving arrangements in terminal devices managed by the network, e.g. network or access point is master and terminal is slave
- H04W52/0219—Power saving arrangements in terminal devices managed by the network, e.g. network or access point is master and terminal is slave where the power saving management affects multiple terminals
-
- 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]
- H04W84/10—Small scale networks; Flat hierarchical networks
- H04W84/12—WLAN [Wireless Local Area Networks]
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W84/00—Network topologies
- H04W84/18—Self-organising networks, e.g. ad-hoc networks or sensor networks
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
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- Engineering & Computer Science (AREA)
- Computer Security & Cryptography (AREA)
- Theoretical Computer Science (AREA)
- General Health & Medical Sciences (AREA)
- Health & Medical Sciences (AREA)
- Bioethics (AREA)
- Signal Processing (AREA)
- Computer Hardware Design (AREA)
- Software Systems (AREA)
- Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Computer Networks & Wireless Communication (AREA)
- Mobile Radio Communication Systems (AREA)
- Small-Scale Networks (AREA)
Description
ANSI/IEEE std 802.11, Wireless LAN medium access control (MAC) and physical layer (PHY) specifications, 1999.
(a)共通通知情報を送受信する送受信部と、
(b)通信範囲内にある通信ノードの数または無線使用状況に応じて、前記共通通知情報の送信間隔を変更する送信間隔調整部と、
を備える無線通信装置を提供する。
21 送受信部
22 無線状況モニタ部
23 ノード数検出部
24 ビーコン間隔調整部
25 ビーコン間隔変更通知部
Claims (9)
- 無線アドホックネットワークを構成する無線通信装置であって、
共通通知情報を送受信する送受信部と、
通信範囲内にある通信ノードの数または無線使用状況に応じて、前記共通通知情報の送信間隔を変更する送信間隔調整部と、
配下に所属する端末の動作態様を管理する配下端末管理部と、
前記共通通知情報の送信間隔の変更を通知する間隔変更通知部と
を備え、
前記送信間隔調整部は、前記配下に所属する端末が所定の動作態様にある場合に、前記間隔変更通知部に前記配下端末への間隔変更通知を送信させて、前記共通通知情報の送信間隔を変更することを特徴とする無線通信装置。 - 前記送信間隔調整部は、前記共通通知情報の送信間隔を、初期設定間隔に前記通信範囲内に存在するノードの数を乗算した値に変更することを特徴とする請求項1に記載の無線通信装置。
- 配下に所属する端末の動作態様を管理する配下端末管理部をさらに有し、
前記送信間隔調整部は、前記配下に所属する端末が所定の動作態様にある場合に、前記共通通知情報の送信間隔を変更しないことを特徴とする請求項1に記載の無線通信装置。 - 無線アドホックネットワークにおいて、当該アドホックネットワークを構成する無線通信装置の各々が、通信範囲内に存在する通信ノードの数または無線使用状態に応じて各々が送信する共通通知情報の送信間隔を変更する無線通信システムであって、
前記各無線通信装置は、
配下に所属する端末の動作態様を管理する配下端末管理部と、
前記共通通知情報の送信間隔の変更を通知する間隔変更通知部と
を有し、前記配下に所属する端末が所定の動作態様にある場合に、前記間隔変更通知部から前記配下端末へ間隔変更通知を送信したうえで、前記共通通知情報の送信間隔を変更することを特徴とする無線通信システム。 - 前記ネットワークにおいて、初期インターバルで前記共通通知情報を送信している第1の無線通信装置が、第2の無線通信装置から接続要求を受け取り、当該第2の無線通信装置と通信を開始することにより、前記共通通知情報の送信間隔を変更することを特徴とする請求項4に記載の無線通信システム。
- 前記第1の無線通信装置は、前記第2の無線通信装置と通信を開始することにより、前記共通通知情報の送信間隔を、前記初期インターバルの2倍に変更することを特徴とする請求項5に記載の無線通信システム。
- 前記第2の無線通信装置は、前記第1の無線通信装置から送られてくる前記共通通知情報を観測することによって、当該第2の無線通信装置が送信する共通通知情報の間隔を変更することを特徴とする請求項5に記載の無線通信システム。
- 前記第2の無線通信装置は、前記第1の無線通信装置との通信の開始により、当該第2の無線通信装置が送信する共通通知情報の間隔を、前記初期インターバルの2倍に変更することを特徴とする請求項5に記載の無線通信システム。
- 前記第2の無線通信装置は、当該第2の無線通信装置の通信範囲内に、前記第1の通信装置の存在に加えて新たに第3の無線通信装置の存在を認識したときに、前記第2の無線通信装置は、当該第2の無線通信装置が送信する共通通知情報の間隔を、前記初期インターバルの3倍の間隔に変更することを特徴とする請求項7または8に記載の無線通信システム。
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2005102873A JP4667100B2 (ja) | 2005-03-31 | 2005-03-31 | 無線通信装置および無線通信システム |
EP20060251727 EP1708439B1 (en) | 2005-03-31 | 2006-03-29 | Wireless communication apparatus and wireless communication system for changing transmission interval of a common broadcast signal |
US11/392,726 US7583651B2 (en) | 2005-03-31 | 2006-03-30 | Wireless communication apparatus and wireless communication system for adjusting the transmission interval in an AD-HOC wireless network |
CNB2006100670456A CN100459548C (zh) | 2005-03-31 | 2006-03-31 | 无线通信装置及无线通信系统 |
CN2008102131562A CN101364920B (zh) | 2005-03-31 | 2006-03-31 | 无线通信装置及无线通信系统 |
Applications Claiming Priority (1)
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JP2005102873A JP4667100B2 (ja) | 2005-03-31 | 2005-03-31 | 無線通信装置および無線通信システム |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2006287463A JP2006287463A (ja) | 2006-10-19 |
JP4667100B2 true JP4667100B2 (ja) | 2011-04-06 |
Family
ID=36571007
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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JP2005102873A Expired - Fee Related JP4667100B2 (ja) | 2005-03-31 | 2005-03-31 | 無線通信装置および無線通信システム |
Country Status (4)
Country | Link |
---|---|
US (1) | US7583651B2 (ja) |
EP (1) | EP1708439B1 (ja) |
JP (1) | JP4667100B2 (ja) |
CN (2) | CN101364920B (ja) |
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2006
- 2006-03-29 EP EP20060251727 patent/EP1708439B1/en not_active Expired - Fee Related
- 2006-03-30 US US11/392,726 patent/US7583651B2/en not_active Expired - Fee Related
- 2006-03-31 CN CN2008102131562A patent/CN101364920B/zh not_active Expired - Fee Related
- 2006-03-31 CN CNB2006100670456A patent/CN100459548C/zh not_active Expired - Fee Related
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JP2003298596A (ja) * | 2001-11-30 | 2003-10-17 | Samsung Electronics Co Ltd | ビーコン間隔の調節が可能な無線通信機器及びその方法 |
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EP1708439B1 (en) | 2013-05-15 |
CN101364920A (zh) | 2009-02-11 |
EP1708439A1 (en) | 2006-10-04 |
US7583651B2 (en) | 2009-09-01 |
CN101364920B (zh) | 2012-03-14 |
JP2006287463A (ja) | 2006-10-19 |
CN100459548C (zh) | 2009-02-04 |
US20060221927A1 (en) | 2006-10-05 |
CN1842041A (zh) | 2006-10-04 |
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