JP2011041319A - ワイアレス・ローカル・アクセス・ネットワーク・システム検出及び選択 - Google Patents
ワイアレス・ローカル・アクセス・ネットワーク・システム検出及び選択 Download PDFInfo
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- H—ELECTRICITY
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- 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]
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- 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
- H04W48/14—Access restriction or access information delivery, e.g. discovery data delivery using user query or user detection
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Abstract
【課題】ワイアレス・ローカル・アクセス・ネットワーク・システム検出及び選択。
【解決手段】ワイアレス・ローカル・エリア・ネットワーク(WLAN)サービスの検出及び選択のための方法及び装置。セルラ・ネットワークは、オーバーヘッド・シグナリング・メッセージにおけるような、WLANに関する通知を提供できる。この通知は、拡張サービス・セット識別名(ESSID)により(複数の)アクセス・ポイントを認識できる。遠隔局は、その後、自動的に又は手動でWLANサービスをスキャンできる。
【選択図】図8
Description
用語“具体例の”は、ここでは広く用いられ、“例、事例、若しくは実例として働くこと”を意味する。“具体例の“としてここで説明されたいずれかの実施形態が、その他の実施形態に対して好ましい若しくは優位であるとして解釈される必要性はない。
以下の議論は、移動局(Mobile Station)(MS)におけるWLAN情報を提供すること(provisioning)及びシグナリング・メッセージを介してセルラ・ネットワークからのWLAN通知に基づいて不必要なWLANスキャニングを最小にするためにMSにおいて実行される方法を詳述する。cdma2000プロトコルをサポートするネットワークは、以下の議論の中で一例として提供される。本明細書の文脈では、提供することは、WLANとの通信の設定のために必要なMSへの構成情報及びWLANパラメータの通信を呼ぶ。
第1の実施形態では、基地局コントローラ(Base Station Controller)(BSC)及び基地トランシーバ・システム(Base Transceiver System)(BTS)は、セル・セクタ内のWLAN通信範囲の知識を用いて構成される。セルラ・サービス・プロバイダがWLANサービスも提供する場合に、WLAN情報は、セルラ・システムに利用可能である。セル・セクタ内にWLAN通信範囲がある時に、BTSは、共通チャネルを介してオーバーヘッド・メッセージとしてWLAN提供情報(例えば、802.11a/b周波数、ESSID,優先ローミング・リスト、等)を定期的に同報通信する。MSは、WLAN提供情報を受信し、WLANをスキャンするために情報を使用する。WLAN提供情報は、既存のオーバーヘッド・メッセージの内部に含まれている可能性がある。あるいは、WLAN提供情報は、WLAN提供のために具体的に規定されたシグナリング・メッセージの中で提供されることができる。
移動局(Mobile Station)(MS)が通信のために1台のチューナを有する場合である。そのような装置では、1台のチューナがセルラ・システムとWLANシステムの両方と通信するために使用される。MSは、WLAN通信範囲を検出し、WLANとセルラ・システムとの間のシステム選択を実行する。ここでは、MSは、所定の時刻において1つのシステム(WLANまたはセルラ)だけに同調させることができる。
下記の例では、移動局(Mobile Station)(MS)は、セルラ周波数とWLAN周波数とを同時に同調できる2台のチューナを有する。MS300は、図6に図示され、メモリ中に記憶されるESSIDリスト302、第1のチューナ、チューナA304、及び第2のチューナ、チューナB306を有する。チューナAは、WLANとの通信のために構成される。チューナB306は、ワイアレス・セルラ・ネットワークとの通信のために構成される。図示されたように、MS300がアクセスするAP320の範囲内にある場合に、チューナA304は、AP320により送信されたWLANビーコンをスキャンする。WLANビーコンは、定期的に送信され、AP320によりサポートされたWLANを認識する。チューナB306は、基地局トランシーバ・システム(BTS)322により送信されたセルラ・ネットワークからのページング標識をスキャンする。このようにして、MS300は、WLAN通信範囲をスキャンする一方で、セルラ・ページもスキャンする。そのようにして、MS300は、WLAN通信範囲を検出し、そして各々のアクセス媒体に対して1台のチューナを使用してWLANとセルラ・システムとの間のシステム選択を実行する。
Claims (17)
- ワイアレス通信システムにおいて:
ワイアレス・ローカル・エリア・ネットワーク(WLAN)の利用可能性を認識すること;及び
共通通信チャネルを介してWLAN通知を同報通信すること、
を具備する、ワイアレス・ローカル・エリア・ネットワークを認識するための方法。 - WLAN通知を同報通信することは、WLAN通知を定期的に同報通信することを具備する、請求項1の方法。
- WLAN通知は、オーバーヘッド・シグナリング・メッセージである、請求項1の方法。
- WLANの利用可能性を認識することは、拡張サービス・セット識別名(ESSID)によりWLANを認識することを具備する、請求項1の方法。
- 遠隔局から登録メッセージを受信すること、ここで、登録メッセージは、遠隔局に対するWLANの能力を知らせる;及び
登録メッセージに応答してWLAN通知の同報通信を開始すること、
をさらに具備する、請求項1の方法。 - 登録メッセージ中のWLAN能力識別名を認識すること、
を具備する、請求項5の方法。 - ワイアレス・ローカル・エリア・ネットワーク(WLAN)通知を受信すること;及び
WLAN通知に応答してWLANをスキャニングすること、
を具備する、遠隔局のための方法。 - WLAN通知を受信することは:
WLANに対応する少なくとも1つの拡張サービス・セット識別名(ESSID)を含むWLAN通知を受信すること;
移動局に記憶されたESSIDリストと少なくとも1つのESSIDとを比較すること;及び
WLAN通知中の少なくとも1つのESSIDに符合するESSIDに応答して、WLANをスキャニングすること、
を具備する、請求項7の方法。 - WLAN通知を受信することに応答してWLANスキャンを自動的に使用可能にすること、
をさらに具備する、請求項7の方法。 - WLAN通知を受信することは:
WLANをサポートしているアクセス・ポイント(AP)に関する所在地情報を含むWLAN通知を受信すること;
遠隔局の現在の位置と所在地情報を比較すること;及び
遠隔局の現在の位置がAPのすぐ近くであるならば、WLANをスキャニングすること、
を具備する、請求項7の方法。 - 所在地情報は、APの緯度と経度を含む、請求項10の方法。
- APに関する所在地情報を移動局上に表示すること、
をさらに具備する、請求項10の方法。 - 所在地情報を表示することに応答してWLANスキャンを開始すること、
をさらに具備する、請求項12の方法。 - ワイアレス通信システムにおいて:
ワイアレス・ローカル・エリア・ネットワーク(WLAN)の利用可能性を認識するための手段;及び
共通通信チャネルを介してWLAN通知を同報通信するための手段、
を具備する、ワイアレス・ローカル・エリア・ネットワークを認識するための装置。 - ワイアレス・ローカル・エリア・ネットワーク(WLAN)通知を受信するための手段;及び
WLAN通知に応答してWLANをスキャニングするための手段、
を具備する、遠隔局のための装置。 - ワイアレス通信システムにおいて:
ワイアレス・ローカル・エリア・ネットワーク(WLAN)を認識するためのコンピュータ読み取り可能な命令を記憶するように適応されたメモリ記憶装置;及び
下記に適応する、メモリ記憶装置に接続された処理ユニット:
WLANの利用可能性を認識する;及び
共通通信チャネルを介してWLAN通知を同報通信する、
を具備する、装置。 - ワイアレス・ローカル・エリア・ネットワークを認識するためのコンピュータ読み取り可能な命令を記憶するように適応されたメモリ記憶装置;及び
下記に適応する、メモリ記憶装置に接続された処理ユニット:
ワイアレス・ローカル・エリア・ネットワーク(WLAN)通知を受信する;及び
WLAN通知に応答してWLANをスキャンする、
を具備する、遠隔局のための装置。
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JP2011041319A true JP2011041319A (ja) | 2011-02-24 |
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JP2010237337A Expired - Lifetime JP5399359B2 (ja) | 2003-02-24 | 2010-10-22 | ワイアレス・ローカル・アクセス・ネットワーク・システム検出及び選択 |
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US (3) | US7146130B2 (ja) |
EP (3) | EP1597869B1 (ja) |
JP (3) | JP4653070B2 (ja) |
KR (1) | KR101044501B1 (ja) |
CN (2) | CN100380882C (ja) |
BR (1) | BRPI0407770A (ja) |
CA (1) | CA2516923A1 (ja) |
HK (1) | HK1089578A1 (ja) |
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US10251109B2 (en) | 2013-01-18 | 2019-04-02 | Kyocera Corporation | Communication control method |
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MXPA05009042A (es) | 2005-11-23 |
CA2516923A1 (en) | 2004-09-10 |
KR20050104388A (ko) | 2005-11-02 |
EP2690819A2 (en) | 2014-01-29 |
WO2004077753A2 (en) | 2004-09-10 |
JP2006518975A (ja) | 2006-08-17 |
US20070093201A1 (en) | 2007-04-26 |
EP1597869B1 (en) | 2014-07-23 |
WO2004077753A3 (en) | 2004-12-16 |
EP2690819A3 (en) | 2016-09-07 |
CN1754345A (zh) | 2006-03-29 |
HK1089578A1 (en) | 2006-12-01 |
KR101044501B1 (ko) | 2011-06-27 |
EP2341735A3 (en) | 2016-06-22 |
EP2341735A2 (en) | 2011-07-06 |
CN101282264B (zh) | 2011-04-06 |
JP4653070B2 (ja) | 2011-03-16 |
US7778593B2 (en) | 2010-08-17 |
EP2341735B1 (en) | 2020-05-27 |
US20040176024A1 (en) | 2004-09-09 |
JP2013243774A (ja) | 2013-12-05 |
EP1597869A2 (en) | 2005-11-23 |
TW200507523A (en) | 2005-02-16 |
US7146130B2 (en) | 2006-12-05 |
JP5399359B2 (ja) | 2014-01-29 |
US8064927B2 (en) | 2011-11-22 |
EP2690819B1 (en) | 2020-04-01 |
US20100291863A1 (en) | 2010-11-18 |
CN101282264A (zh) | 2008-10-08 |
BRPI0407770A (pt) | 2006-03-01 |
CN100380882C (zh) | 2008-04-09 |
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