JP2013509816A - System and method for optimizing a WiMAX femto self-organizing network that provides automatic adjacency - Google Patents
System and method for optimizing a WiMAX femto self-organizing network that provides automatic adjacency Download PDFInfo
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Abstract
本発明の特定の実施形態は、ＷＦＡＰの周辺の最新のマクロＢＳ情報及びＷＦＡＰネイバー情報を得るように自動隣接関係（ＡＮＲ）操作を提供するＷｉＭＡＸ自己組織型ネットワーク（ＳＯＮ）の最適化のためのシステム及び方法を提供する。一実施形態では、ＷＦＡＰが隣接基地局情報の変化を検出する。その後、ＷＦＡＰは、更新された隣接基地局情報を認証のためにＳＯＮサーバに送信する。ＳＯＮサーバから認証を受けた後、ＷＦＡＰは、更新された隣接基地局情報を用いて、自らの隣接関係テーブルを更新する。
【選択図】 図１
Certain embodiments of the present invention are for WiMAX self-organizing network (SON) optimization that provides automatic adjacency (ANR) operations to obtain the latest macro BS information and WFAP neighbor information around the WFAP. Systems and methods are provided. In one embodiment, the WFAP detects changes in neighboring base station information. Thereafter, the WFAP transmits the updated neighboring base station information to the SON server for authentication. After receiving authentication from the SON server, the WFAP updates its adjacency table using the updated adjacent base station information.
[Selection] Figure 1
Description
[0001]優先権は、２００９年１０月２８日に出願された米国仮特許出願第６１／２５５７１０号に対して米国特許法第１１９条の下で主張され、この仮出願の開示内容はその全体が参照によって本明細書に組み込まれている。 [0001] Priority is claimed under 35 USC 119 against US Provisional Patent Application No. 61/255710 filed Oct. 28, 2009, the disclosure of which is in its entirety Is incorporated herein by reference.
[0002]本発明の技術分野は、無線通信であり、特に、自己組織型ネットワーク（ＳＯＮ：ｓｅｌｆ−ｏｒｇａｎｉｚｅｄ ｎｅｔｗｏｒｋ）の自動隣接関係（ＡＮＲ：ａｕｔｏｍａｔｉｃ ｎｅｉｇｈｂｏｒ ｒｅｌａｔｉｏｎ)である。 [0002] The technical field of the present invention is wireless communication, and in particular, automatic neighbor relationship (ANR) of a self-organized network (SON).
[0003]セルラー通信システムは、通常、複数の基地局が対応する地理的区域にわたって無線通信サービスを提供するために効果的に配置されるように構成される。基地局によって提供されるその区域は、通常、セルと呼ばれる。様々な理由から、基地局は、付近の基地局に関する情報を有することが望ましい。これらの理由の一つは、移動局がセル間を移動する時にハンドオフを容易にするためである。そのような基地局のリストは、通常、隣接関係テーブル（ＮＲＴ：ｎｅｉｇｈｂｏｒ ｒｅｌａｔｉｏｎ ｔａｂｌｅ）と呼ばれる。 [0003] Cellular communication systems are typically configured such that multiple base stations are effectively arranged to provide wireless communication services over a corresponding geographic area. That area provided by the base station is usually called a cell. For various reasons, it is desirable for a base station to have information about nearby base stations. One of these reasons is to facilitate handoff when the mobile station moves between cells. Such a list of base stations is usually referred to as a neighbor relation table (NRT).
[0004]一般に、セルラーシステムでは、システムオペレータが、複数の基地局の相対的位置に基づいてネイバーリスト（隣接リスト）を手動で設定し、管理する。この手動操作は、ほとんど変化しないネットワークトポロジに対して効果的かもしれない。しかしながら、フェムトセルネットワークでは、ＷｉＭＡＸフェムトセルアクセスポイント（ＷＦＡＰ）がシステムオペレータによってだけではなくユーザによっても頻繁に設置又は撤去される可能性があり、システムオペレータがネイバーリストを効率良く管理することは困難である。従って、システムオペレータの隣接セル管理の負担を軽減するために、自動隣接関係（ＡＮＲ）方式が望まれている。 [0004] Generally, in a cellular system, a system operator manually sets and manages a neighbor list (adjacency list) based on the relative positions of multiple base stations. This manual operation may be effective for network topologies that rarely change. However, in femtocell networks, WiMAX femtocell access points (WFAP) can be frequently installed or removed not only by the system operator but also by the user, making it difficult for the system operator to efficiently manage the neighbor list. It is. Therefore, an automatic adjacency relationship (ANR) scheme is desired to reduce the burden of adjacent cell management on the system operator.
[0005]現在のＡＮＲ設計の一つの問題は、信頼できない隣接情報又は古い隣接情報である。ＷＦＡＰスキャニングは、ＷＦＡＰの初期化に限られる可能性がある。ＷＦＡＰは、付近の基地局をスキャニングすることによって、又はそのＷＦＡＰの位置に基づいてシステムオペレータからネイバーリストを取得することによって、隣接基地局情報を得るかもしれない。しかしながら、ＷＦＡＰの初期化に基づいて作成されたネイバーリストは、多くの理由から信頼できない可能性がある。例えば、隣接基地局がＷＦＡＰのネットワークサービスプロバイダ（ＮＳＰ）といかなるビジネス関係も有していないかもしれないし（ＷＦＡＰのＮＳＰ ＩＤが隣接基地局と同じでない可能性があることにも留意されたい）、隣接基地局が動作可能な状態ではないかもしれないし（例えば、電源オン又はオフ）、あるいは隣接基地局が移動局からアクセスできないものかもしれない。 [0005] One problem with current ANR designs is unreliable neighbor information or old neighbor information. WFAP scanning may be limited to WFAP initialization. The WFAP may obtain neighbor base station information by scanning nearby base stations or by obtaining a neighbor list from the system operator based on the location of the WFAP. However, a neighbor list created based on WFAP initialization may be unreliable for a number of reasons. For example, the neighboring base station may not have any business relationship with the WFAP network service provider (NSP) (note that the WFAP NSP ID may not be the same as the neighboring base station); The neighboring base station may not be operational (eg, powered on or off), or the neighboring base station may not be accessible from the mobile station.
[0006]従って、ハンドオーバー操作の目的で、所与のＷＦＡＰ隣接基地局の識別子（ＩＤ）をむやみに選択すべきではない。むしろ、より信頼できる情報又は新しい情報が、移動局による隣接基地局選択のためのＡＮＲスキャニング操作を支援するためにＷＦＡＰに提供されるべきである。 [0006] Thus, for the purpose of handover operations, the identifier (ID) of a given WFAP neighbor base station should not be selected unnecessarily. Rather, more reliable information or new information should be provided to the WFAP to assist the ANR scanning operation for neighbor base station selection by the mobile station.
[0007]ＷＦＡＰの初期化中に、自己設定（ｓｅｌｆ−ｃｏｎｆｉｇｕｒａｔｉｏｎ）のプロセスが使用される。自己設定のために、ＷＦＡＰは、ＷＦＡＰスキャニングに基づいて、又はそのＷＦＡＰの位置に基づいて、隣接基地局情報を取得してもよい。ＷＦＡＰの初期化の後は、自己最適化（ｓｅｌｆ−ｏｐｔｉｍｉｚａｔｉｏｎ）のプロセスが使用される。自己最適化のために、ＷＦＡＰ又は自己組織型ネットワーク（ＳＯＮ）サーバは、隣接基地局情報が変化したことを検出してもよい。 [0007] During WFAP initialization, a self-configuration process is used. For self-configuration, the WFAP may obtain neighboring base station information based on WFAP scanning or based on the location of the WFAP. After initialization of WFAP, a self-optimization process is used. For self-optimization, a WFAP or self-organizing network (SON) server may detect that neighboring base station information has changed.
[0008]本発明の特定の実施形態は、ＷＦＡＰの周辺の最新のマクロ基地局情報及びＷＦＡＰ隣接基地局情報を得るために自動隣接関係操作を提供するＷｉＭＡＸ自己組織型ネットワークの最適化のためのシステム及び方法を提供する。 [0008] Certain embodiments of the present invention are for optimization of a WiMAX self-organizing network that provides automatic adjacency operations to obtain the latest macro base station information and WFAP neighbor base station information around the WFAP. Systems and methods are provided.
[0009]本発明の特定の実施形態によれば、ＷＦＡＰが隣接基地局情報の変化を検出する。その後、そのＷＦＡＰは、更新された隣接基地局情報を、認証のためにＳＯＮサーバに送信する。そのＳＯＮサーバから認証を受けた後、そのＷＦＡＰは、更新された隣接基地局情報を用いて、自らの隣接関係テーブルを更新する。 [0009] According to certain embodiments of the invention, WFAP detects changes in neighboring base station information. Thereafter, the WFAP transmits the updated neighboring base station information to the SON server for authentication. After receiving authentication from the SON server, the WFAP updates its adjacency table using the updated adjacent base station information.
[0010]本発明の特定の実施形態によれば、ＳＯＮサーバが隣接基地局情報の変化を検出する。その後、そのＳＯＮサーバは、更新された隣接基地局情報をＷＦＡＰに送信する。 [0010] According to certain embodiments of the invention, the SON server detects changes in neighboring base station information. Thereafter, the SON server transmits the updated neighboring base station information to the WFAP.
[0011]図面において、同様の参照番号は類似の構成要素を表す。 [0011] In the drawings, like reference numbers indicate similar components.
[0014]以下では、図１を参照する。隣接する基地局の情報が変化したことをＷＦＡＰが検出する場合、それは、移動局（ＭＳ）がＭＯＢ＿ＳＣＮ−ＲＥＱ／ＲＥＰやＭＯＢ＿ＭＳＨＯ−ＲＥＱなどの関連メッセージを報告したことに起因するか、あるいは制御されていない又は予測されていないハンドオーバーイベントに起因する可能性がある。 [0014] Reference is now made to FIG. If the WFAP detects that the information of neighboring base stations has changed, it is due to the mobile station (MS) reporting related messages such as MOB_SCN-REQ / REP and MOB_MSHO-REQ, or controlled. May be due to an unforeseen or unforeseen handover event.
[0015]隣接する基地局の情報の変化のＷＦＡＰ検出は、以下のステップ又は信号を用いて実現してもよい。第一に、ＷＦＡＰが、隣接する基地局の情報の変化を検出する。第二に、このＷＦＡＰは、Ｃｏｎｆｉｇｕｒａｔｉｏｎ Ｕｐｄａｔｅ Ｒｅｑ（設定更新要求）をＳＯＮサーバに送信する。このＣｏｎｆｉｇｕｒａｔｉｏｎ Ｕｐｄａｔｅ Ｒｅｑは、その隣接基地局の更新された情報を含んでいる。第三に、このＳＯＮサーバは、この隣接基地局情報の更新された情報を認証及び／又は検査する。このＳＯＮサーバは、さらに、一つ以上の他のＷＦＡＰのＮＲＴの更新を生じさせてもよい。第四に、このＳＯＮサーバは、Ｃｏｎｆｉｇｕｒａｔｉｏｎ Ｕｐｄａｔｅ Ｒｓｐ（設定更新応答）をＷＦＡＰに送信する。第五に、このＷＦＡＰは、自らのＮＲＴを更新する。第六に、このＷＦＡＰは、Ｃｏｎｆｉｇｕｒａｔｉｏｎ Ｕｐｄａｔｅ Ａｃｋ（設定更新確認）をＳＯＮサーバに送信する。 [0015] WFAP detection of information changes of neighboring base stations may be realized using the following steps or signals. First, the WFAP detects changes in information of neighboring base stations. Second, the WFAP sends a configuration update request (setting update request) to the SON server. This Configuration Update Req includes updated information of the neighboring base station. Third, the SON server authenticates and / or checks the updated information of the neighboring base station information. The SON server may also cause one or more other WFAP NRT updates to occur. Fourthly, this SON server transmits Configuration Update Rsp (setting update response) to WFAP. Fifth, this WFAP updates its NRT. Sixth, this WFAP sends a Configuration Update Ack (setting update confirmation) to the SON server.
[0016]以下では、図２を参照する。隣接する基地局の情報が変化したことをＳＯＮサーバが検出する場合、それは、何らかの警告情報に起因する可能性がある。例えば、隣接するＢＳ（基地局）又はＷＦＡＰが動作していない（例えば、バックホールオフライン）かもしれないし、新しいＢＳ又はＷＦＡＰの設置や既存の基地局（ＢＳ）又はＷＦＡＰの撤去など、何らかの設定情報かもしれないし、あるいはＮＲＴ検査（例えば、セルＡがセルＢの隣接セルならば、通常、セルＢもセルＡの隣接セルである）かもしれない。 [0016] In the following, reference is made to FIG. If the SON server detects that the information of neighboring base stations has changed, it may be due to some warning information. For example, the neighboring BS (base station) or WFAP may not be operating (eg, backhaul offline), or any configuration information such as installation of a new BS or WFAP or removal of an existing base station (BS) or WFAP Or it may be an NRT check (eg, if cell A is a cell adjacent to cell B, cell B is usually a cell adjacent to cell A).
[0017]隣接基地局情報の変化のＳＯＮサーバによる検出は、以下のステップ又は信号を用いて実現してもよい。第一に、ＳＯＮサーバが、隣接基地局の情報の変化を検出する。第二に、このＳＯＮサーバは、Ｃｏｎｆｉｇｕｒａｔｉｏｎ Ｕｐｄａｔｅ Ｒｅｑ（設定更新要求）を一つ以上のＷＦＡＰに送信する。このＣｏｎｆｉｇｕｒａｔｉｏｎ Ｕｐｄａｔｅ Ｒｅｑは、その隣接基地局の更新された情報を含んでいる。第三に、この一つ以上のＷＦＡＰは、自らのＮＲＴを更新する。第四に、この一つ以上のＷＦＡＰは、Ｃｏｎｆｉｇｕｒａｔｉｏｎ Ｕｐｄａｔｅ Ａｃｋ（設定更新確認）をＳＯＮサーバに送信する。 [0017] Detection by the SON server of changes in neighboring base station information may be achieved using the following steps or signals. First, the SON server detects a change in information of an adjacent base station. Second, the SON server sends a Configuration Update Req (setting update request) to one or more WFAPs. This Configuration Update Req includes updated information of the neighboring base station. Third, the one or more WFAPs update their NRT. Fourth, the one or more WFAPs send a Configuration Update Ack (configuration update confirmation) to the SON server.
[0018]本発明の実施形態を図示して説明したが、本明細書における発明概念から逸脱することなく更に多くの変形が可能であることは当業者にとって明らかであろう。従って、本発明は、特許請求の範囲の趣旨以外に限定されるものではない。 [0018] While embodiments of the invention have been illustrated and described, it will be apparent to those skilled in the art that many more modifications are possible without departing from the inventive concepts herein. Accordingly, the invention is not limited except as by the spirit of the appended claims.
Claims (15)
隣接関係テーブルを保持するＷｉＭＡＸフェムトセルアクセスポイント（ＷＦＡＰ）によって、隣接基地局情報の変化を検出するステップと、
更新された隣接基地局情報を一つ以上のＳＯＮサーバに送信するステップと、
前記ＳＯＮサーバのうちの少なくとも一つからの認証に応答して、前記更新された隣接基地局情報の変化に基づいて前記隣接関係テーブルを更新するステップと
を含む方法。 A method for optimizing a WiMAX femto self-organizing network (SON) comprising:
Detecting a change in neighboring base station information by a WiMAX femtocell access point (WFAP) holding an adjacency table;
Transmitting updated neighbor base station information to one or more SON servers;
Updating the adjacency table based on changes in the updated neighbor base station information in response to authentication from at least one of the SON servers.
少なくとも一つのＳＯＮサーバによって、隣接基地局情報の変化を検出するステップと、
更新された隣接基地局情報を少なくとも一つのＷｉＭＡＸフェムトセルアクセスポイント（ＷＦＡＰ）に送信するステップと、
前記ＷＡＦＰの隣接基地局に関する変化情報を少なくとも一つのＳＯＮサーバから受信した後、該ＷＦＡＰによって更新を行うステップと
を含む方法。 A method for optimizing a WiMAX femto self-organizing network (SON) comprising:
Detecting a change in neighboring base station information by at least one SON server;
Transmitting updated neighbor base station information to at least one WiMAX femtocell access point (WFAP);
Receiving the change information related to the neighboring base station of the WAFP from at least one SON server and then updating by the WFAP.
隣接関係テーブルを含む少なくとも一つのＷｉＭＡＸフェムトセルアクセスポイント（ＷＦＡＰ）を備え、
前記少なくとも一つのＷＦＡＰが、隣接基地局情報の変化の検出に応答して前記隣接関係テーブルを更新するように構成されている、システム。 A system for optimizing a WiMAX femto self-organizing network (SON),
Comprising at least one WiMAX femtocell access point (WFAP) including an adjacency table;
The system, wherein the at least one WFAP is configured to update the adjacency table in response to detecting a change in adjacent base station information.
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| US61/255,710 | 2009-10-28 | ||
| PCT/US2010/054181 WO2011053611A1 (en) | 2009-10-28 | 2010-10-27 | System and method for optimization of a wimax femto self-organized network for providing automatic neighbor relation |
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| JP2012009990A (en) * | 2010-06-23 | 2012-01-12 | Mitsubishi Electric Corp | Radio communication system |
| JP2017534231A (en) * | 2015-10-12 | 2017-11-16 | シャオミ・インコーポレイテッド | Network connection method, apparatus, program, and recording medium |
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| US10305959B2 (en) | 2014-12-11 | 2019-05-28 | At&T Intellectual Property I, L.P. | Self-organizing network communication |
| CN106304023B (en) * | 2015-06-01 | 2019-09-06 | 中国移动通信集团公司 | Business access control and neighboring BS relationship querying method, device and system |
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| US20040106408A1 (en) * | 2001-05-02 | 2004-06-03 | James Beasley | Wireless base station neighbor discovery in a communication system, such as a system employing a short-range frequency hopping scheme |
| WO2009124083A1 (en) * | 2008-03-31 | 2009-10-08 | Qualcomm Incorporated | Method and system for facilitating execution of automatic neighbor relation functions |
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| US7620027B2 (en) * | 2003-03-14 | 2009-11-17 | Canon Kabushiki Kaisha | Communication system, information processing device, connection device, and connection device designation method for designating connection device for communication device to connect to |
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| US8532658B2 (en) * | 2006-12-19 | 2013-09-10 | Airvana Network Solutions, Inc. | Neighbor list provision in a communication network |
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- 2010-10-27 JP JP2012536975A patent/JP2013509816A/en active Pending
- 2010-10-27 DE DE112010004199T patent/DE112010004199T5/en not_active Withdrawn
- 2010-10-27 GB GB1207153.6A patent/GB2487026A/en not_active Withdrawn
- 2010-10-27 SE SE1250510A patent/SE1250510A1/en not_active Application Discontinuation
- 2010-10-27 RU RU2012121891/07A patent/RU2012121891A/en not_active Application Discontinuation
- 2010-10-27 WO PCT/US2010/054181 patent/WO2011053611A1/en active Application Filing
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| US20040106408A1 (en) * | 2001-05-02 | 2004-06-03 | James Beasley | Wireless base station neighbor discovery in a communication system, such as a system employing a short-range frequency hopping scheme |
| WO2009124083A1 (en) * | 2008-03-31 | 2009-10-08 | Qualcomm Incorporated | Method and system for facilitating execution of automatic neighbor relation functions |
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| JPN6014010683; Ｒｏｎｎｙ Ｙｏｎｇｈｏ Ｋｉｍ: 'ＷｉＭＡＸ Ｆｅｍｔｏｃｅｌｌ： Ｒｅｑｕｉｒｅｍｅｎｔｓ， Ｃｈａｌｌｅｎｇｅｓ， ａｎｄ Ｓｏｌｕｔｉｏｎｓ' Ｃｏｍｍｕｎｉｃａｔｉｏｎｓ Ｍａｇａｚｉｎｅ， ＩＥＥＥ （Ｖｏｌｕｍｅ：４７ ， Ｉｓｓｕｅ： ９ ） , 200909, ｐｐ．８４-９１ * |
| JPN6014010684; Ｌｅｉ Ｊｉｎ: 'ＳＯＮ ｉｎ ＩＥＥＥ ８０２．１６ｍ ｓｙｓｔｅｍ' ＩＥＥＥ Ｃ８０２．１６ｍ-０８／１２７５ｒ１ , 20081031 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012009990A (en) * | 2010-06-23 | 2012-01-12 | Mitsubishi Electric Corp | Radio communication system |
| JP2017534231A (en) * | 2015-10-12 | 2017-11-16 | シャオミ・インコーポレイテッド | Network connection method, apparatus, program, and recording medium |
Also Published As
| Publication number | Publication date |
|---|---|
| SE1250510A1 (en) | 2012-05-18 |
| RU2012121891A (en) | 2013-12-10 |
| GB201207153D0 (en) | 2012-06-06 |
| WO2011053611A1 (en) | 2011-05-05 |
| DE112010004199T5 (en) | 2012-11-22 |
| GB2487026A (en) | 2012-07-04 |
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