JP2008099086A - 無線lanシステムおよび無線通信方法 - Google Patents
無線lanシステムおよび無線通信方法 Download PDFInfo
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/02—Details
- H04L12/16—Arrangements for providing special services to substations
- H04L12/18—Arrangements for providing special services to substations for broadcast or conference, e.g. multicast
- H04L12/1886—Arrangements for providing special services to substations for broadcast or conference, e.g. multicast with traffic restrictions for efficiency improvement, e.g. involving subnets or subdomains
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- 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
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- 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
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W8/00—Network data management
- H04W8/26—Network addressing or numbering for mobility support
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/06—Selective distribution of broadcast services, e.g. multimedia broadcast multicast service [MBMS]; Services to user groups; One-way selective calling services
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- 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]
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- 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 Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Databases & Information Systems (AREA)
- Mobile Radio Communication Systems (AREA)
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Abstract
【解決手段】無線LANの基地局(104)に収容された複数の無線端末(105A/105B)が、無線LANにおける一対多型通信のデータを使用するプログラムを実行したとき、一対多型通信のデータを受信するための自端末のアドレスを基地局へ通知する(S601)。基地局は、無線端末から通知されたアドレスを該無線端末の一対一型通信のアドレスに関連付けて記録する(S602)。また、基地局は、無線LANへ送出すべき一対多型通信のデータを受信したとき(S603)、そのデータの宛先を該宛先に対応する一対一型通信のアドレスに変換して(S605)当該無線端末へ送信する(S609)。
【選択図】図6
Description
LAN MAN Standards Committee of the IEEE Computer Society、"Part 11 : Wireless LAN Medium Access Control (MAC) and Physical Layer (PHY) Specifications"、ANSI/IEEE Std 802.11, 1999 Edition、p.128−133
101 有線LAN
102 無線LAN
103 LAN端末
104 無線LAN基地局
105A、105B 無線LAN端末
201:LANインタフェース、202:ブリッジ部、203:BMC-UCコンバータ、204:無線LANインタフェース、205:端末管理テーブル、206:制御部
301:制御部、302:BMCアドレス通知部、303:無線LANインタフェース、304:アドレスリスト
Claims (10)
- 無線LANの基地局および該基地局に収容された複数の無線端末を備え、
前記複数の無線端末は、無線LANにおける一対多型通信のデータを使用するプログラムを実行したとき、一対多型通信のデータを受信するための自端末のアドレスを前記基地局へ通知する手段を有し、
前記基地局は、無線端末から通知された前記アドレスを該無線端末の一対一型通信のアドレスに関連付けて記録する手段と、無線LANへ送出すべき一対多型通信のデータの宛先を該宛先に対応する一対一型通信のアドレスに変換する手段と、一対一型通信のアドレスに変換されたデータを当該無線端末へ送信する手段とを有することを特徴とする無線LANシステム。 - 前記基地局は、一対多型通信のデータの宛先を一対一型通信のアドレスに変換したときに該変換の旨を示す識別子を前記データに付加する手段を有し、
前記複数の無線端末は、一対多型通信に関し前記基地局へ通知したアドレスと自端末の一対一型通信のアドレスとを記憶する手段と、前記基地局から受信したデータに前記識別子が付加されているか否かを判定する手段と、前記識別子が付加されたデータの宛先アドレスを前記基地局へ通知した一対多型通信のアドレスに変換して該データを転送する手段とを有することを特徴とする請求項1記載の無線LANシステム。 - 前記基地局は、2種類の同期信号を相互に異なる周期で無線LANへ送出する手段を有し、一対多型通信のデータの送信タイミングが前記2種類の同期信号の一方の送信タイミングに関連付けられていることを特徴とする請求項1又は2記載の無線LANシステム。
- 無線LANの基地局に収容された無線端末であって、
無線LANにおける一対多型通信のデータを使用するプログラムを実行したとき、一対多型通信のデータを受信するための自端末のアドレスを前記基地局へ通知する手段を有することを特徴とする無線端末。 - 一対多型通信に関し前記基地局へ通知したアドレスと自端末の一対一型通信のアドレスとを記憶する手段と、一対多型通信のデータの宛先を一対一型通信のアドレスに変換したことを示す識別子が前記基地局から受信したデータに付加されているか否かを判定する手段と、前記識別子が付加されたデータの宛先を前記基地局へ通知した一対多型通信のアドレスに変換して該データを転送する手段とを有することを特徴とする請求項4記載の無線端末。
- 複数の無線端末を収容する無線LAN基地局であって、
一対多型通信の宛先に適用すべきアドレスに関し無線端末から通知されたアドレスを該無線端末の一対一型通信のアドレスに関連付けて記録する手段と、無線LANへ送出すべき一対多型通信のデータの宛先を該宛先に対応する一対一型通信のアドレスに変換する手段と、一対一型通信のアドレスに変換されたデータを当該無線端末へ送信する手段とを有することを特徴とする無線LAN基地局。 - 一対多型通信のデータの宛先を一対一型通信のアドレスに変換したときに該変換の旨を示す識別子を前記データに付加する手段を有することを特徴とする請求項6記載の無線LAN基地局。
- 2種類の同期信号を相互に異なる周期で無線LANへ送出する手段を有し、一対多型通信のデータの送信タイミングが前記2種類の同期信号の一方の送信タイミングに関連付けられていることを特徴とする請求項6又は7記載の無線LAN基地局。
- 無線LANの基地局に収容された複数の無線端末が、無線LANにおける一対多型通信のデータを使用するプログラムを実行したとき、一対多型通信のデータを受信するための自端末のアドレスを前記基地局へ通知し、
前記基地局が、無線端末から通知された前記アドレスを該無線端末の一対一型通信のアドレスに関連付けて記録し、無線LANへ送出すべき一対多型通信のデータの宛先を該宛先に対応する一対一型通信のアドレスに変換し、一対一型通信のアドレスに変換されたデータを当該無線端末へ送信することを特徴とする無線通信方法。 - 前記基地局が、一対多型通信のデータの宛先を一対一型通信のアドレスに変換したときに該変換の旨を示す識別子を前記データに付加し、
前記複数の無線端末が、一対多型通信に関し前記基地局へ通知したアドレスと自端末の一対一型通信のアドレスとを記憶し、前記基地局から受信したデータに前記識別子が付加されているか否かを判定し、前記識別子が付加されたデータの宛先を前記基地局へ通知した一対多型通信のアドレスに変換して該データを転送することを特徴とする請求項9記載の無線通信方法。
Priority Applications (9)
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JP2006279923A JP4955362B2 (ja) | 2006-10-13 | 2006-10-13 | 無線lanシステムおよび無線通信方法 |
CA2605825A CA2605825C (en) | 2006-10-13 | 2007-10-05 | Wireless lan system and wireless communication method |
AU2007221896A AU2007221896A1 (en) | 2006-10-13 | 2007-10-09 | Wireless LAN system and wireless communication method |
TW96137789A TWI388160B (zh) | 2006-10-13 | 2007-10-09 | 無線區域網路系統及無線通信方法 |
US11/869,049 US8184568B2 (en) | 2006-10-13 | 2007-10-09 | Wireless LAN system and wireless communication method |
NZ562463A NZ562463A (en) | 2006-10-13 | 2007-10-11 | Wireless lan system and wireless communication method |
SG200716815-6A SG142240A1 (en) | 2006-10-13 | 2007-10-11 | Wireless lan system and wireless communication method |
EP20070118348 EP1912378B1 (en) | 2006-10-13 | 2007-10-12 | Wireless LAN system and wireless communication method |
CN2007101624727A CN101262389B (zh) | 2006-10-13 | 2007-10-15 | 无线局域网系统和无线通信方法 |
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JP2006279923A JP4955362B2 (ja) | 2006-10-13 | 2006-10-13 | 無線lanシステムおよび無線通信方法 |
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US (1) | US8184568B2 (ja) |
EP (1) | EP1912378B1 (ja) |
JP (1) | JP4955362B2 (ja) |
CN (1) | CN101262389B (ja) |
AU (1) | AU2007221896A1 (ja) |
CA (1) | CA2605825C (ja) |
NZ (1) | NZ562463A (ja) |
SG (1) | SG142240A1 (ja) |
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- 2007-10-09 TW TW96137789A patent/TWI388160B/zh active
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Also Published As
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SG142240A1 (en) | 2008-05-28 |
AU2007221896A1 (en) | 2008-05-01 |
US8184568B2 (en) | 2012-05-22 |
TWI388160B (zh) | 2013-03-01 |
JP4955362B2 (ja) | 2012-06-20 |
EP1912378A1 (en) | 2008-04-16 |
NZ562463A (en) | 2009-05-31 |
US20080089263A1 (en) | 2008-04-17 |
CN101262389B (zh) | 2013-07-24 |
EP1912378B1 (en) | 2012-08-15 |
CA2605825A1 (en) | 2008-04-13 |
TW200822630A (en) | 2008-05-16 |
CA2605825C (en) | 2014-08-12 |
CN101262389A (zh) | 2008-09-10 |
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