JP2008066827A - Connection destination selecting method of relay station applied with ieee802.16, relay station, and program - Google Patents

Connection destination selecting method of relay station applied with ieee802.16, relay station, and program Download PDF

Info

Publication number
JP2008066827A
JP2008066827A JP2006239903A JP2006239903A JP2008066827A JP 2008066827 A JP2008066827 A JP 2008066827A JP 2006239903 A JP2006239903 A JP 2006239903A JP 2006239903 A JP2006239903 A JP 2006239903A JP 2008066827 A JP2008066827 A JP 2008066827A
Authority
JP
Japan
Prior art keywords
relay
station
relay station
base station
line information
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
JP2006239903A
Other languages
Japanese (ja)
Other versions
JP4476985B2 (en
Inventor
Kenji Saito
研次 齊藤
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
KDDI Research Inc
Original Assignee
KDDI R&D Laboratories Inc
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 KDDI R&D Laboratories Inc filed Critical KDDI R&D Laboratories Inc
Priority to JP2006239903A priority Critical patent/JP4476985B2/en
Publication of JP2008066827A publication Critical patent/JP2008066827A/en
Application granted granted Critical
Publication of JP4476985B2 publication Critical patent/JP4476985B2/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Landscapes

  • Small-Scale Networks (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Radio Relay Systems (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To provide a connection destination selecting method of a relay station which selects a relay route by its judgement while taking the modulation speed of a relay line into consideration, to provide the relay station, and to provide a program as to a high-speed wireless access system applied with IEEE802.16. <P>SOLUTION: A first relay station after making a network entry to a base station (or a master relay station) broadcasts information on a relay line between the base station (or master relay station) and the first relay station. Then a second relay station receives relay line information from the base station and/or a plurality of first relay stations. Then the second relay station makes a network entry to the base station or first relay station having relay line information such that the modulation speed becomes maximum. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

本発明は、ＩＥＥＥ８０２．１６を適用した中継局の接続先選択方法、中継局及びプログラムに関する。   The present invention relates to a relay station connection destination selection method, relay station, and program to which IEEE 802.16 is applied.

ＩＥＥＥ８０２．１６は、ＢＷＡ(Broadband Wireless Access)サービスを提供可能な高速無線アクセスシステムの標準規格である。現在、ＩＥＥＥ８０２．１６標準化会合では、データを中継することによってカバレッジ範囲を拡大するＭＭＲ(Mobile Multihop Relay)技術に関し、メディアアクセス制御(Medium Access Control)及び物理層を規定するための検討が開始されている。このＭＭＲ技術によれば、基地局ＢＳ(Base Station)は、その基地局ＢＳ圏内の固定局ＳＳ(Subscriber Station)又は移動局ＭＳ(Mobile Subscriber Station)と通信をすると共に、基地局ＢＳ圏内の中継局ＲＳ(Relay Station)を介して、基地局ＢＳ圏外の固定局ＳＳ又は移動局ＭＳとも通信をすることができる。   IEEE 802.16 is a standard for a high-speed wireless access system that can provide a BWA (Broadband Wireless Access) service. Currently, at the IEEE 802.16 standardization meeting, studies to define the media access control and the physical layer have been started regarding MMR (Mobile Multihop Relay) technology that expands the coverage range by relaying data. Yes. According to this MMR technique, a base station BS (Base Station) communicates with a fixed station SS (Subscriber Station) or a mobile station MS (Mobile Subscriber Station) within the base station BS and relays within the base station BS. It is also possible to communicate with a fixed station SS or a mobile station MS outside the base station BS area via a station RS (Relay Station).

ＩＥＥＥ８０２．１６の高速無線アクセスシステムは、基本的に、固定局ＳＳ向けＢＷＡサービスの提供を目的とした標準規格である（例えば非特許文献１参照、ＩＥＥＥ８０２．１６−２００４）。ここでは、ＰＭＰ(Point-to-Multipoint)及びＭｅｓｈの２つのネットワークトポロジが規定されている。ＰＭＰは、一般的なセルラシステムと同様、基本的に「ＢＳ：ＳＳ＝１：多」でネットワークを構成する。一方、Ｍｅｓｈは、固定局ＳＳ同士をマルチホップでネットワークを構成する。   The IEEE 802.16 high-speed wireless access system is basically a standard for the purpose of providing a BWA service for a fixed station SS (for example, refer to Non-Patent Document 1, IEEE 802.16-2004). Here, two network topologies, PMP (Point-to-Multipoint) and Mesh, are defined. The PMP basically configures a network with “BS: SS = 1: Many” as in a general cellular system. On the other hand, Mesh configures a network of fixed stations SS by multi-hop.

非特許文献１によれば、カバレッジ範囲の拡大を目的とする中継機能については全く考慮されていない。電力増幅の中継を行う場合、中継局ＲＳは、中継局ＲＳ−固定局ＳＳ間の通信状態によって決定された、所望Burst Profile（変調方式やコードレートの情報）を単に増幅して転送する。従って、基地局ＢＳ−中継局ＲＳ間の通信状態が考慮されず、結果的に基地局ＢＳ−中継局ＲＳ−固定局ＳＳ間の整合が取れない。   According to Non-Patent Document 1, no consideration is given to a relay function for the purpose of extending the coverage range. When relaying power amplification, the relay station RS simply amplifies and transfers a desired Burst Profile (modulation scheme and code rate information) determined by the communication state between the relay station RS and the fixed station SS. Therefore, the communication state between the base station BS and the relay station RS is not considered, and as a result, the match between the base station BS, the relay station RS, and the fixed station SS cannot be achieved.

また、ＩＥＥＥ８０２．１６−２００４標準規格のＭｅｓｈトポロジを用いてカバレッジ範囲拡大を図ることはできる。しかし、Ｍｅｓｈはオプション扱いであって、フレーム構成についてＰＭＰと互換性が無い。また、ＰＭＰと比較して、フレームのオーバヘッドが多く、スループットに影響する。複信方式は、ＴＤＤ(Time Division Duplex)しかサポートしていない。   Further, the coverage range can be expanded by using the Mesh topology of the IEEE 802.16-2004 standard. However, Mesh is treated as an option, and the frame configuration is not compatible with PMP. In addition, compared with PMP, there is more frame overhead, which affects throughput. The duplex method supports only TDD (Time Division Duplex).

更に、ＩＥＥＥ８０２．１６−２００４を、移動局ＭＳ向けＢＷＡサービス提供を目的として修正した高速無線システムの標準規格もある（例えば非特許文献２参照、ＩＥＥＥ８０２．１６ｅ−２００５）。変調方式としては、シングルキャリア、ＯＦＤＭ(Orthogonal Frequency Division Multiplexing)、ＯＦＤＭＡ(Orthogonal Frequency Division Multiple Access)方式が採用されている。ネットワークトポロジとしては、ＰＭＰのみが規定されている。   Furthermore, there is a standard for a high-speed wireless system in which IEEE 802.16-2004 is modified for the purpose of providing a BWA service for a mobile station MS (for example, see Non-Patent Document 2, IEEE 802.16e-2005). As a modulation method, a single carrier, OFDM (Orthogonal Frequency Division Multiplexing), or OFDMA (Orthogonal Frequency Division Multiple Access) method is adopted. Only PMP is defined as the network topology.

図１は、従来技術におけるシステム構成図である。   FIG. 1 is a system configuration diagram in the prior art.

移動局ＭＳは、移動しながら、接続すべき基地局ＢＳを切り替える（ハンドオーバ）ことができる。図１によれば、対象となる移動局ＭＳ３は、３つの基地局ＢＳのカバレッジ範囲が重畳する位置に存在する。このとき、移動局ＭＳ３は、所望ＱｏＳ(Quality of Service)を満足する基地局ＢＳにハンドオーバすべきである。所望ＱｏＳとしては、例えば所望トラヒックレートがある。   The mobile station MS can switch (handover) the base station BS to be connected while moving. According to FIG. 1, the target mobile station MS3 exists at a position where the coverage ranges of the three base stations BS overlap. At this time, the mobile station MS3 should be handed over to a base station BS that satisfies a desired QoS (Quality of Service). As the desired QoS, for example, there is a desired traffic rate.

基地局ＢＳを選択する判定要素として、基地局ＢＳの利用可能無線リソースＡＲＲ(Available radio resource)を用いることができる。利用可能無線リソースＡＲＲは、フレーム当たりの平均利用可能サブチャネル及びシンボルのリソースの割合をいう。全ての基地局ＢＳのＡＲＲは、ネットワーク制御管理装置ＮＣＭＳ(Network Control Management System)４によって管理される。ＮＣＭＳ３は、移動局ＭＳがハンドオーバする際に、所望ＱｏＳを満足するような利用可能無線リソースＡＲＲを有する基地局ＢＳに接続するように制御する。   As a determination element for selecting the base station BS, an available radio resource ARR (Available radio resource) of the base station BS can be used. Available radio resource ARR refers to the ratio of average available subchannel and symbol resources per frame. The ARRs of all base stations BS are managed by a network control management system NCMS (Network Control Management System) 4. The NCMS 3 controls to connect to a base station BS having an available radio resource ARR that satisfies the desired QoS when the mobile station MS performs handover.

IEEE Std 802.16-2004、IEEEStandard for Local and metropolitan area networks, Part 16 : Air Interface forFixed Broadband Wireless Access SystemsIEEE Std 802.16-2004, IEEE Standard for Local and metropolitan area networks, Part 16: Air Interface for Fixed Broadband Wireless Access Systems IEEE Std 802.16e-2005、IEEEStandard for Local and metropolitan area networks, Part 16 : Air Interface forFixed and Mobile Broadband Wireless Access Systems, Amendment 2:Physical andMedium Access Control Layers for Combined Fixed and Mobile Operation inLicensed Bands and Corrigendum 1IEEE Std 802.16e-2005, IEEE Standard for Local and metropolitan area networks, Part 16: Air Interface forFixed and Mobile Broadband Wireless Access Systems, Amendment 2: Physical and Medium Access Control Layers for Combined Fixed and Mobile Operation in Licensed Bands and Corrigendum 1

しかしながら、ネットワーク制御管理装置ＮＣＭＳは、基地局ＢＳの利用可能無線リソースＡＲＲを管理するものであって、ＩＥＥＥ８０２．１６を適用したシステムにおける中継局ＲＳの経路選択については明らかではない。基地局ＢＳの利用可能無線リソースＡＲＲに余裕があっても、中継回線（基地局又は親中継局−中継局間）の容量が小さければ、移動局の所望ＱｏＳが満足されない場合も生じる。   However, the network control management device NCMS manages the available radio resource ARR of the base station BS, and it is not clear about the route selection of the relay station RS in a system to which IEEE 802.16 is applied. Even if there is a surplus in the available radio resource ARR of the base station BS, the desired QoS of the mobile station may not be satisfied if the capacity of the relay line (between the base station or the parent relay station and the relay station) is small.

そこで、本発明は、ＩＥＥＥ８０２．１６を適用した高速無線アクセスシステムについて、中継回線の変調速度を考慮して、中継局が自ら判断して中継経路を選択する中継局の接続先選択方法、中継局及びプログラムを提供することを目的とする。   Accordingly, the present invention relates to a relay station connection destination selection method for a high-speed wireless access system to which IEEE802.16 is applied, in which the relay station makes a judgment by itself and selects a relay path in consideration of the modulation speed of the relay line, and a relay station And to provide a program.

本発明によれば、ＩＥＥＥ８０２．１６を適用した基地局と移動局とが、１つ以上の中継局を介して通信するシステムにおける中継局の接続先選択方法であって、
第１の中継局は、基地局又は親中継局に対してネットワークエントリをした後で、基地局又は親中継局−第１の中継局間の第１の中継回線情報をブロードキャストする第１のステップと、
第２の中継局は、基地局及び／又は複数の第１の中継局から第１の中継回線情報を受信する第２のステップと、
第２の中継局は、変調速度が最大となる第１の中継回線情報を有する基地局又は第１の中継局に対してネットワークエントリをする第３のステップと
を有することを特徴とする。 According to the present invention, a relay station connection destination selection method in a system in which a base station and a mobile station to which IEEE 802.16 is applied communicates via one or more relay stations,
The first relay station first makes a network entry to the base station or the parent relay station, and then broadcasts the first relay line information between the base station or the parent relay station and the first relay station. When,
A second step of receiving second relay line information from the base station and / or the plurality of first relay stations;
The second relay station has a third step of making a network entry with respect to the base station or the first relay station having the first relay line information with the maximum modulation rate.

本発明の中継局の接続先選択方法における他の実施形態によれば、第１の中継回線情報は、Burst Profileを表すDIUC(Downlink Interval Usage Code)値を含むDCD(Downlink Channel Descriptor)と、UIUC(Uplink Interval Usage Code)値を含むUCD(Uplink Channel Descriptor)とであることも好ましい。   According to another embodiment of the relay station connection destination selection method of the present invention, the first relay channel information includes a DCD (Downlink Channel Descriptor) including a DIUC (Downlink Interval Usage Code) value representing a Burst Profile, and a UIUC. A UCD (Uplink Channel Descriptor) including an (Uplink Interval Usage Code) value is also preferable.

本発明の中継局の接続先選択方法における他の実施形態によれば、
第２の中継局は、第１の中継回線情報と、第１の中継局−第２の中継局間の第２の中継回線情報とを比較し、
両中継回線が同時に利用可能である場合、
想定Burst Profile＝
ｍｉｎ（第１の中継回線の変調速度，第２の中継回線の変調速度）
両中継回線が同時に利用可能でない場合、
想定Burst Profile＝（第１の中継回線の変調速度×第２の中継回線の変調速度）／
（第１の中継回線の変調速度＋第２の中継回線の変調速度）
として、想定Burst Profileが最大となるように基地局又は第１の中継局を選択することも好ましい。 According to another embodiment of the relay station connection destination selection method of the present invention,
The second relay station compares the first relay line information with the second relay line information between the first relay station and the second relay station, and
If both trunk lines are available at the same time,
Assumed Burst Profile =
min (modulation speed of the first trunk line, modulation speed of the second trunk line)
If both trunk lines are not available at the same time,
Assumed Burst Profile = (Modulation speed of first trunk line × Modulation speed of second trunk line) /
(Modulation speed of the first trunk line + modulation speed of the second trunk line)
It is also preferable to select the base station or the first relay station so that the assumed Burst Profile is maximized.

本発明によれば、ＩＥＥＥ８０２．１６を適用した基地局と移動局との間で通信を中継する中継局であって、
基地局又は親中継局に対してネットワークエントリをするネットワークエントリ処理手段と、
基地局又は親中継局−第１の中継局間の中継回線情報をブロードキャストする中継回線情報送信手段と、
基地局及び／又は複数の第１の中継局から中継回線情報を受信する中継回線情報受信手段と、
変調速度が最大となる中継回線情報を有する基地局又は第１の中継局を決定する接続先選択手段と
を有し、接続先選択手段によって選択された基地局又は親中継局に対して、ネットワークエントリ処理手段がネットワークエントリをすべく制御することを特徴とする。 According to the present invention, a relay station that relays communication between a base station and a mobile station to which IEEE 802.16 is applied,
Network entry processing means for making a network entry for a base station or a parent relay station;
A relay line information transmitting means for broadcasting the relay line information between the base station or the parent relay station and the first relay station;
Relay line information receiving means for receiving relay line information from a base station and / or a plurality of first relay stations;
A connection destination selection means for determining a base station or a first relay station having the relay line information with the maximum modulation rate, and a network for the base station or the parent relay station selected by the connection destination selection means. The entry processing means controls the network entry to be performed.

本発明の中継局における他の実施形態によれば、中継回線情報は、Burst Profileを表すDIUC値を含むDCDと、UIUC値を含むUCDとであることも好ましい。   According to another embodiment of the relay station of the present invention, the trunk line information is preferably a DCD including a DIUC value representing a Burst Profile and a UCD including a UIUC value.

本発明の中継局における他の実施形態によれば、
接続先選択手段は、第１の中継回線情報と、第１の中継局−第２の中継局間の第２の中継回線情報とを比較し、
両中継回線が同時に利用可能である場合、
想定Burst Profile＝
ｍｉｎ（第１の中継回線の変調速度，第２の中継回線の変調速度）
両中継回線が同時に利用可能でない場合、
想定Burst Profile＝（第１の中継回線の変調速度×第２の中継回線の変調速度）／
（第１の中継回線の変調速度＋第２の中継回線の変調速度）
として、想定Burst Profileが最大となるように基地局又は第１の中継局を選択することも好ましい。 According to another embodiment of the relay station of the present invention,
The connection destination selection means compares the first relay line information with the second relay line information between the first relay station and the second relay station,
If both trunk lines are available at the same time,
Assumed Burst Profile =
min (modulation speed of the first trunk line, modulation speed of the second trunk line)
If both trunk lines are not available at the same time,
Assumed Burst Profile = (Modulation speed of first trunk line × Modulation speed of second trunk line) /
(Modulation speed of the first trunk line + modulation speed of the second trunk line)
It is also preferable to select the base station or the first relay station so that the assumed Burst Profile is maximized.

本発明によれば、ＩＥＥＥ８０２．１６を適用した基地局と移動局との間で通信を中継する中継局に搭載されたコンピュータを機能させるプログラムであって、
基地局又は親中継局に対してネットワークエントリをするネットワークエントリ処理手段と、
基地局又は親中継局−第１の中継局間の中継回線情報をブロードキャストする中継回線情報送信手段と、
基地局及び／又は複数の第１の中継局から中継回線情報を受信する中継回線情報受信手段と、
変調速度が最大となる中継回線情報を有する基地局又は第１の中継局を決定する接続先選択手段と
を有し、接続先選択手段によって選択された基地局又は親中継局に対して、ネットワークエントリ処理手段がネットワークエントリをすべく制御するようにコンピュータを機能させることを特徴とする。 According to the present invention, there is provided a program for causing a computer installed in a relay station that relays communication between a base station and a mobile station to which IEEE 802.16 is applied to
Network entry processing means for making a network entry for a base station or a parent relay station;
A relay line information transmitting means for broadcasting the relay line information between the base station or the parent relay station and the first relay station;
Relay line information receiving means for receiving relay line information from a base station and / or a plurality of first relay stations;
A connection destination selection means for determining a base station or a first relay station having the relay line information with the maximum modulation rate, and a network for the base station or the parent relay station selected by the connection destination selection means. The computer is made to function so that the entry processing means controls the network entry.

本発明の中継局用プログラムにおける他の実施形態によれば、中継回線情報は、Burst Profileを表すDIUC値を含むDCDと、UIUC値を含むUCDとであることも好ましい。   According to another embodiment of the relay station program of the present invention, the relay line information is preferably a DCD including a DIUC value representing a Burst Profile and a UCD including a UIUC value.

本発明の中継局用プログラムにおける他の実施形態によれば、
接続先選択手段は、第１の中継回線情報と、第１の中継局−第２の中継局間の第２の中継回線情報とを比較し、
両中継回線が同時に利用可能である場合、
想定Burst Profile＝
ｍｉｎ（第１の中継回線の変調速度，第２の中継回線の変調速度）
両中継回線が同時に利用可能でない場合、
想定Burst Profile＝（第１の中継回線の変調速度×第２の中継回線の変調速度）／
（第１の中継回線の変調速度＋第２の中継回線の変調速度）
として、想定Burst Profileが最大となるように基地局又は第１の中継局を選択するようにコンピュータを機能させることも好ましい。 According to another embodiment of the relay station program of the present invention,
The connection destination selection means compares the first relay line information with the second relay line information between the first relay station and the second relay station,
If both trunk lines are available at the same time,
Assumed Burst Profile =
min (modulation speed of the first trunk line, modulation speed of the second trunk line)
If both trunk lines are not available at the same time,
Assumed Burst Profile = (Modulation speed of first trunk line × Modulation speed of second trunk line) /
(Modulation speed of the first trunk line + modulation speed of the second trunk line)
It is also preferable to make the computer function so as to select the base station or the first relay station so that the assumed Burst Profile is maximized.

本発明の中継局の接続先選択方法、中継局及びプログラムによれば、ＩＥＥＥ８０２．１６を適用した高速無線アクセスシステムについて、中継回線の変調速度を考慮して、中継局が自ら判断して中継経路を選択することができる。   According to the relay station connection destination selection method, relay station, and program of the present invention, a relay path is determined by the relay station itself in consideration of the modulation speed of the relay line in a high-speed wireless access system to which IEEE 802.16 is applied. Can be selected.

以下では、図面を用いて、本発明を実施するための最良の形態について詳細に説明する。   Hereinafter, the best mode for carrying out the present invention will be described in detail with reference to the drawings.

図２は、本発明におけるシステム構成図である。   FIG. 2 is a system configuration diagram according to the present invention.

図２によれば、図１と比較して、１つの基地局ＢＳの配下に、２つの中継局ＲＳ１及びＲＳ２が存在している。基地局ＢＳには、ネットワーク制御管理装置ＮＣＭＳが接続されている。中継局ＲＳ２に接続された移動局ＭＳ２−１及びＭＳ２−２は、基地局ＢＳと通信するために、以下の２つの経路を有する。
（経路１）中継局ＲＳ２＜−＞基地局ＢＳ
（経路２）中継局ＲＳ２＜−＞中継局ＲＳ１＜−＞基地局ＢＳ According to FIG. 2, compared with FIG. 1, there are two relay stations RS1 and RS2 under one base station BS. A network control management device NCMS is connected to the base station BS. The mobile stations MS2-1 and MS2-2 connected to the relay station RS2 have the following two paths in order to communicate with the base station BS.
(Route 1) Relay station RS2 <-> Base station BS
(Route 2) Relay station RS2 <-> Relay station RS1 <-> Base station BS

このとき、中継局ＲＳ２−基地局ＢＳ間の変調速度が、中継ＲＳ２−中継ＲＳ１−基地局ＢＳ間の変調速度よりも大きい場合もあるし、その逆の場合もある。本発明によれば、中継局ＲＳ２は、変調速度の大きい経路を介して基地局ＢＳに接続するように制御する。尚、図２について、当該中継局から見て、基地局が親中継局であってもよいし、移動局が子中継局であってもよい。即ち、本発明は、複数の中継局を介した複数ホップにも対応する。   At this time, the modulation rate between the relay station RS2 and the base station BS may be larger than the modulation rate between the relay RS2 and the relay RS1 and the base station BS, and vice versa. According to the present invention, the relay station RS2 controls to connect to the base station BS via a path with a high modulation speed. In FIG. 2, when viewed from the relay station, the base station may be a parent relay station, and the mobile station may be a child relay station. In other words, the present invention also supports multiple hops via multiple relay stations.

局間の中継回線情報は、変調速度[bits/symbol]によって表すことができる。図２によれば、局間の変調速度は、以下のように表されている。
ＲA[bits/symbol]：基地局ＢＳ−中継局ＲＳ１間の変調速度
ＲB[bits/symbol]：基地局ＢＳ−中継局ＲＳ２間の変調速度
ＲC[bits/symbol]：中継局ＲＳ１−中継局ＲＳ２間の変調速度 The trunk line information between stations can be represented by a modulation rate [bits / symbol]. According to FIG. 2, the modulation rate between stations is expressed as follows.
R A [bits / symbol]: modulation speed between base station BS and relay station RS1 R B [bits / symbol]: modulation speed between base station BS and relay station RS2 R C [bits / symbol]: relay station RS1- Modulation speed between relay stations RS2

図３は、本発明におけるシーケンス図である。尚、実線の矢印のメッセージは、非特許文献２に既に規定されたメッセージを表す。点線の矢印のメッセージは、中継局ＲＳを介して本発明を実現するために、非特許文献２に既に規定されたものに加えて新たに追加したメッセージを表す。   FIG. 3 is a sequence diagram in the present invention. Note that a solid arrow message represents a message already defined in Non-Patent Document 2. A dotted arrow message represents a message newly added in addition to the one already defined in Non-Patent Document 2 in order to realize the present invention via the relay station RS.

（Ｓ３０１）最初に、基地局ＢＳは、下り回線情報及び上り回線情報を定期的にブロードキャストする。下り回線情報は、DL-MAP及びDCD等を含み、上り回線情報は、UL-MAP及びUCD等を含む。 (S301) First, the base station BS periodically broadcasts downlink information and uplink information. The downlink information includes DL-MAP and DCD, and the uplink information includes UL-MAP and UCD.

以下は、DCDメッセージフォーマットを表す。
DCD_Message_Format() {
Management Message Type=1 (8 bits)
Reserved (8 bits)
Configuration Change Count (8 bits)
TLV Encoded information for the overall channel (variable)
Begin PHY Specific Section {
for (i=0; i<=n; i++) {
Downlink_Burst_Profile (PHY specific)
}
}
} The following represents the DCD message format.
DCD_Message_Format () {
Management Message Type = 1 (8 bits)
Reserved (8 bits)
Configuration Change Count (8 bits)
TLV Encoded information for the overall channel (variable)
Begin PHY Specific Section {
for (i = 0; i <= n; i ++) {
Downlink_Burst_Profile (PHY specific)
}
}
}

表１は、DCDのTLV Encoded information for the overall channelに含まれる情報を表す。

Figure 2008066827
Table 1 shows information included in TLV encoded information for the overall channel of DCD.
Figure 2008066827

# of hopsは、中継回線（基地局又は親中継局−中継局間）のホップ数を表す。DIUCs of relay linksは、基地局ＢＳから見てホップ順に表された、当該中継回線のDIUCを表す。図２によれば、基地局ＢＳによってブロードキャストされるDCDは、表１の情報を含まないものであってもよいし、# of hops＝0となる表１の情報を含むものであってもよい。中継局ＲＳは、受信したDCDに表１の情報が含まれていなければ、基地局ＢＳからのDCDと判断することができる。また、受信したDCDに表１の情報が含まれているが、# of hops＝0と記述されていれば、基地局ＢＳからのDCDと判断することができる。   # of hops represents the number of hops of the relay line (between the base station or the parent relay station and the relay station). DIUCs of relay links represents the DIUC of the relay line expressed in hop order when viewed from the base station BS. According to FIG. 2, the DCD broadcast by the base station BS may not include the information in Table 1 or may include the information in Table 1 where # of hops = 0. . If the received DCD does not include the information in Table 1, the relay station RS can determine that the DCD is from the base station BS. Further, although the information shown in Table 1 is included in the received DCD, it can be determined that the DCD is from the base station BS if # of hops = 0 is described.

以下は、UCDメッセージフォーマットを表す。
UCD_Message_Format() {
Management Message Type=0 (8 bits)
Configuration Change Count (8 bits)
Ranging Backoff Start (8 bits)
Ranging Backoff End (8 bits)
Request Backoff Start (8 bits)
Request Backoff End (8 bits)
TLV Encoded information for the overall channel (variable)
Begin PHY Specific Section {
for (i=0; i<=n; i++) {
Uplink_Burst_Profile (variable)
}
}
} The following represents the UCD message format.
UCD_Message_Format () {
Management Message Type = 0 (8 bits)
Configuration Change Count (8 bits)
Ranging Backoff Start (8 bits)
Ranging Backoff End (8 bits)
Request Backoff Start (8 bits)
Request Backoff End (8 bits)
TLV Encoded information for the overall channel (variable)
Begin PHY Specific Section {
for (i = 0; i <= n; i ++) {
Uplink_Burst_Profile (variable)
}
}
}

表２は、UCDのTLV Encoded information for the overall channelに含まれる情報を表す。

Figure 2008066827
Table 2 shows information included in the UCD TLV encoded information for the overall channel.
Figure 2008066827

UIUCs of relay linksは、基地局ＢＳから見てホップ順に表された、当該中継回線のUIUCを表す。図２によれば、基地局ＢＳによってブロードキャストされるUCDは、表２の情報を含まないものであってもよいし、# of hops＝0となる表２の情報を含むものであってもよい。中継局ＲＳは、受信したUCDに表２の情報が含まれていなければ、基地局ＢＳからのUCDと判断することができる。また、受信したUCDに表２の情報が含まれているが、# of hops＝0と記述されていれば、基地局ＢＳからのUCDと判断することができる。   UIUCs of relay links represents the UIUC of the relay line expressed in hop order when viewed from the base station BS. According to FIG. 2, the UCD broadcast by the base station BS may not include the information in Table 2, or may include the information in Table 2 where # of hops = 0. . If the information of Table 2 is not included in the received UCD, the relay station RS can determine the UCD from the base station BS. Further, although the information of Table 2 is included in the received UCD, if # of hops = 0 is described, it can be determined that the UCD is from the base station BS.

（Ｓ３０２）基地局ＢＳからの回線情報を受信した中継局ＲＳ１は、基地局ＢＳへRNG-REQ(Ranging Request)を送信し、それに対して基地局ＢＳからRNG-RSP(Ranging Response)を受信する。また、中継局ＲＳ１は、基地局ＢＳへSBC-REQ(SS Basic Capability Request)を送信し、それに対して基地局ＢＳからSBC-RSP(SS Basic Capability Response)を受信する。 (S302) The relay station RS1 that has received the line information from the base station BS transmits an RNG-REQ (Ranging Request) to the base station BS, and receives an RNG-RSP (Ranging Response) from the base station BS. . Also, the relay station RS1 transmits an SBC-REQ (SS Basic Capability Request) to the base station BS, and receives an SBC-RSP (SS Basic Capability Response) from the base station BS.

（Ｓ３０３）次に、中継局ＲＳ１は、REG-REQ(Registration Request)を基地局ＢＳへ送信する。REG-REQは、以下の情報を有する。
REG-REQ_Message_Format() {
Management Message Type=6 (8 bits)
TLV Encoded Information (TLV specific)
} (S303) Next, the relay station RS1 transmits a REG-REQ (Registration Request) to the base station BS. The REG-REQ has the following information.
REG-REQ_Message_Format () {
Management Message Type = 6 (8 bits)
TLV Encoded Information (TLV specific)
}

REG-REQのTLV Encoded Informationには、以下の情報が含まれる。
・中継局ＲＳのＭＡＣアドレス
・当該中継局ＲＳが接続する基地局ＩＤ／親中継局ＩＤ
・Downlink Burst Profile（DIUC値：Burst Profile（変調方式やコードレートの情報）を表す値）
・Uplink Burst Profile（UIUC値：Burst Profile（変調方式やコードレートの情報）を表す値） The following information is included in TLV Encoded Information of REG-REQ.
-MAC address of relay station RS-Base station ID / parent relay station ID to which the relay station RS is connected
Downlink Burst Profile (DIUC value: Burst Profile (value indicating modulation method and code rate))
Uplink Burst Profile (UIUC value: Burst Profile (value indicating modulation method and code rate))

（Ｓ３０４）REG-REQを受信した基地局ＢＳは、TLV Encoded Informationの情報を含めたROUTE-NOTIFYを、ネットワーク制御管理装置ＮＣＭＳへ送信する。ネットワーク制御管理装置ＮＣＭＳは、DIUC及びUIUCから、基地局ＢＳ−中継局ＲＳ１間のネットワーク状態情報を登録する。 (S304) The base station BS that has received the REG-REQ transmits ROUTE-NOTIFY including information of TLV Encoded Information to the network control management device NCMS. The network control management device NCMS registers the network state information between the base station BS and the relay station RS1 from DIUC and UIUC.

（Ｓ３０５）これに対し、ネットワーク制御管理装置ＮＣＭＳは、基地局ＢＳへROUTE-ACKを返信する。ROUTE-ACKには、以下の情報が含まれる。
・ホップ数
・ホップ毎のDIUC値
・ホップ毎のUIUC値
・中継局ＲＳに割り当てたセルＩＤ (S305) In response to this, the network control management device NCMS returns a ROUTE-ACK to the base station BS. The ROUTE-ACK includes the following information.
-Number of hops-DIUC value for each hop-UIUC value for each hop-Cell ID assigned to relay station RS

（Ｓ３０６）ROUTE-ACKを受信した基地局ＢＳは、REG-RSPを中継局ＲＳ１へ返信する。REG-RSPは、以下の情報を有する。
REG-RSP_Message_Format() {
Management Message Type=6 (8 bits)
Response
TLV Encoded Information (TLV specific)
}
TLV Encoded Informationは、ROUTE-ACKによって受信した情報を含む。ここで、中継局ＲＳ１には、ROUTE-ACKに含まれるセルＩＤが割り当てられ、これにより、移動局ＭＳは、基地局ＢＳと中継局ＲＳ１とを各セルＩＤにより識別することが可能となる。 (S306) The base station BS that has received the ROUTE-ACK returns a REG-RSP to the relay station RS1. The REG-RSP has the following information.
REG-RSP_Message_Format () {
Management Message Type = 6 (8 bits)
Response
TLV Encoded Information (TLV specific)
}
TLV Encoded Information includes information received by ROUTE-ACK. Here, the cell ID included in the ROUTE-ACK is assigned to the relay station RS1, so that the mobile station MS can identify the base station BS and the relay station RS1 by each cell ID.

（Ｓ３１１）次に、基地局ＢＳは、中継局ＲＳ１配下の移動局ＭＳ（又は子中継局）に対して、定期的に、下り回線情報(DL-MAP、DCD)及び上り回線情報(UL-MAP、UCD)を送信する。また、中継局ＲＳ１は、基地局ＢＳから受信した回線情報を、ブロードキャストし、中継局ＲＳ２へ送信する。この回線情報には、ネットワークエントリにて得た基地局ＢＳ−中継局ＲＳ１間の回線情報を含む。具体的には、DCDに、Downlink Burst Profileに対応したDIUCを含め、UCDに、Uplink Burst Profileに対応したUIUCを含める。 (S311) Next, the base station BS periodically transmits downlink information (DL-MAP, DCD) and uplink information (UL-) to the mobile station MS (or child relay station) under the relay station RS1. MAP, UCD). Further, the relay station RS1 broadcasts the line information received from the base station BS and transmits it to the relay station RS2. This line information includes line information between the base station BS and the relay station RS1 obtained by the network entry. Specifically, DIUC corresponding to Downlink Burst Profile is included in DCD, and UIUC corresponding to Uplink Burst Profile is included in UCD.

DCDの# of hopsは、中継回線（基地局又は親中継局−中継局間）のホップ数を表す。DIUCs of relay linksは、基地局ＢＳから見てホップ順に表された、当該中継回線のDIUCを表す。図２によれば、中継局ＲＳ１がブロードキャストするDCDは、# of hops＝１及びDIUC#1（4bits）を含む。   DC of # of hops represents the number of hops of the relay line (between the base station or the parent relay station and the relay station). DIUCs of relay links represents the DIUC of the relay line expressed in hop order when viewed from the base station BS. According to FIG. 2, the DCD broadcast by the relay station RS1 includes # of hops = 1 and DIUC # 1 (4 bits).

UCDの# of hopsは、中継回線（基地局又は親中継局−中継局間）のホップ数を表す。UIUCs of relay linksは、基地局ＢＳから見てホップ順に表された、当該中継回線のUIUCを表す。図２によれば、中継局ＲＳ１がブロードキャストするUCDは、# of hops＝１及びUIUC#1（4bits）を含む。UIUC#1は、基地局ＢＳ−中継局ＲＳ間の中継回線Burst Profile：ＲA[bits/symbol]を表す。 # Of hops in UCD represents the number of hops of the relay line (between the base station or the parent relay station and the relay station). UIUCs of relay links represents the UIUC of the relay line expressed in hop order when viewed from the base station BS. According to FIG. 2, the UCD broadcasted by the relay station RS1 includes # of hops = 1 and UIUC # 1 (4 bits). UIUC # 1 represents a relay line Burst Profile: R A [bits / symbol] between the base station BS and the relay station RS.

（Ｓ３１２）中継局ＲＳ２は、Ｓ３０１及びＳ３１１によって、経路１（基地局ＢＳ−中継局ＲＳ２）と、経路２（基地局ＢＳ−中継局ＲＳ１−中継局ＲＳ２）との双方の上下回線情報を取得することができる。中継局ＲＳ２は、経路１の中継回線と経路２の中継回線とにおける想定Burst Profileを算出し、変調速度が最大となる接続先を選択する。 (S312) Relay station RS2 acquires the uplink / downlink information of both path 1 (base station BS-relay station RS2) and path 2 (base station BS-relay station RS1-relay station RS2) through S301 and S311. can do. The relay station RS2 calculates an assumed Burst Profile for the relay line of the route 1 and the relay line of the route 2, and selects a connection destination that maximizes the modulation rate.

（経路１）想定Burst Profile＝ＲB[bits/symbol]
（経路２）経路２の中継回線Ａ（基地局ＢＳ−中継局ＲＳ１）及び中継回線Ｃ（中継局ＲＳ１−中継局ＲＳ２）が、同時に利用可能である場合、変調速度の低い中継回線がボトルネックになる。例えば、中継回線Ａの周波数と中継回線Ｂの周波数とが異なる場合、両中継回線は同時に利用可能となる。この場合、想定Burst Profileは、以下のようになる。
想定Burst Profile＝ｍｉｎ（ＲA，ＲC）
ＲA[bits/symbol]：基地局ＢＳ−中継局ＲＳ１間の変調速度
ＲB[bits/symbol]：基地局ＢＳ−中継局ＲＳ２間の変調速度
ＲC[bits/symbol]：中継局ＲＳ１−中継局ＲＳ２間の変調速度
ｍｉｎ：小さい方の値をとる (Route 1) Assumed Burst Profile = R B [bits / symbol]
(Route 2) When the relay line A (base station BS-relay station RS1) and the relay line C (relay station RS1-relay station RS2) on the path 2 can be used at the same time, a relay line with a low modulation speed is a bottleneck. become. For example, when the frequency of the trunk line A and the frequency of the trunk line B are different, both the trunk lines can be used simultaneously. In this case, the assumed Burst Profile is as follows.
Assumed Burst Profile = min (R A , R C )
R A [bits / symbol]: modulation speed between base station BS and relay station RS1 R B [bits / symbol]: modulation speed between base station BS and relay station RS2 R C [bits / symbol]: relay station RS1- Modulation speed between relay stations RS2 min: take the smaller value

また、経路２の中継回線Ａ及び中継回線Ｃが、同時に利用可能でない場合がある。例えば、中継回線Ａの周波数と中継回線Ｂの周波数とが同じであって、時分割で利用される場合である。この場合、例えば中継回線Ａと中継回線Ｃが同じ変調方式であっても通信可能な時間は時分割で半分となるためスループットも半分となる。この場合、想定Burst Profileは、以下のようになる。

Figure 2008066827
In addition, the relay line A and the relay line C of the route 2 may not be available at the same time. For example, the frequency of the trunk line A and the frequency of the trunk line B are the same and are used in a time division manner. In this case, for example, even if the relay line A and the relay line C have the same modulation method, the communicable time is halved by time division, so the throughput is also halved. In this case, the assumed Burst Profile is as follows.
Figure 2008066827

Ｓ３１３は、中継局ＲＳ２が、経路１を選択した場合であり、Ｓ３１４は、中継局ＲＳ２が、経路２を選択した場合である。   S313 is a case where the relay station RS2 has selected the route 1, and S314 is a case where the relay station RS2 has selected the route 2.

（Ｓ３１３）基地局ＢＳが、下り回線情報（DL-MAP、DCD）及び上り回線情報（UL-MAP、UCD）をブロードキャストする。これら回線情報を受信した中継局ＲＳ２は、基地局ＢＳへRNG-REQを送信し、それに対して基地局ＢＳからRNG-RSPを受信する。また、中継局ＲＳ２は、基地局ＢＳへSBC-REQを送信し、それに対して基地局ＢＳからSBC-RSPを受信する。次に、中継局ＲＳ２は、REG-REQを基地局ＢＳへ送信する。REG-REQを受信した基地局ＢＳは、TLV Encoded Informationの情報を含めたROUTE-NOTIFYを、ネットワーク制御管理装置ＮＣＭＳへ送信する。ネットワーク制御管理装置ＮＣＭＳは、DIUC及びUIUCから、基地局ＢＳ−中継局ＲＳ２間のネットワーク状態情報を登録する。これに対し、ネットワーク制御管理装置ＮＣＭＳは、基地局ＢＳへROUTE-ACKを返信する。ROUTE-ACKを受信した基地局ＢＳは、REG-RSPを中継局ＲＳ２へ返信する。 (S313) The base station BS broadcasts downlink information (DL-MAP, DCD) and uplink information (UL-MAP, UCD). The relay station RS2 that has received the line information transmits an RNG-REQ to the base station BS, and receives an RNG-RSP from the base station BS. Further, the relay station RS2 transmits SBC-REQ to the base station BS, and receives SBC-RSP from the base station BS. Next, the relay station RS2 transmits REG-REQ to the base station BS. The base station BS that has received the REG-REQ transmits ROUTE-NOTIFY including information of TLV Encoded Information to the network control management device NCMS. The network control management device NCMS registers network state information between the base station BS and the relay station RS2 from DIUC and UIUC. On the other hand, the network control management device NCMS returns ROUTE-ACK to the base station BS. The base station BS that has received the ROUTE-ACK returns a REG-RSP to the relay station RS2.

（Ｓ３１４）基地局ＢＳが、中継局ＲＳ１配下の移動局又は子中継局に対して、下り回線情報（DL-MAP、DCD）及び上り回線情報（UL-MAP、UCD）をブロードキャストする。中継局ＲＳ１は、更に、配下の移動局ＭＳ又は中継局ＲＳへこれら回線情報をブロードキャストする。これら回線情報を受信した中継局ＲＳ２は、中継局ＲＳ１へRNG-REQを送信し、それに対して中継局ＲＳ１からRNG-RSPを受信する。また、中継局ＲＳ２は、中継局ＲＳ１へSBC-REQを送信し、中継局ＲＳ１は、基地局ＢＳへSBC-NOTIFYを送信する。それに対して、基地局ＢＳは、中継局ＲＳ１へSBC-ACKを返信し、中継局ＲＳ１は、中継局ＲＳ２へSBC-RSPを返信する。次に、中継局ＲＳ２は、REG-REQを中継局ＲＳ１へ送信し、中継局ＲＳ１は、基地局ＢＳへREG-NOTIFYを送信する。REG-NOTIFYを受信した基地局ＢＳは、TLV
Encoded Informationの情報を含めたROUTE-NOTIFYを、ネットワーク制御管理装置ＮＣＭＳへ送信する。ネットワーク制御管理装置ＮＣＭＳは、DIUC及びUIUCから、基地局ＢＳ−中継局ＲＳ１−中継局ＲＳ２間のネットワーク状態情報を登録する。これに対し、ネットワーク制御管理装置ＮＣＭＳは、基地局ＢＳへROUTE-ACKを返信する。ROUTE-ACKを受信した基地局ＢＳは、REG-ACKを中継局ＲＳ１へ返信し、中継局ＲＳ１は、REG-RSPを中継局ＲＳ２へ返信する。 (S314) The base station BS broadcasts downlink information (DL-MAP, DCD) and uplink information (UL-MAP, UCD) to the mobile station or child relay station under the relay station RS1. The relay station RS1 further broadcasts these line information to the subordinate mobile station MS or the relay station RS. Receiving these line information, relay station RS2 transmits RNG-REQ to relay station RS1, and receives RNG-RSP from relay station RS1. Also, the relay station RS2 transmits SBC-REQ to the relay station RS1, and the relay station RS1 transmits SBC-NOTIFY to the base station BS. On the other hand, the base station BS returns SBC-ACK to the relay station RS1, and the relay station RS1 returns SBC-RSP to the relay station RS2. Next, the relay station RS2 transmits REG-REQ to the relay station RS1, and the relay station RS1 transmits REG-NOTIFY to the base station BS. The base station BS that has received REG-NOTIFY
ROUTE-NOTIFY including information of Encoded Information is transmitted to the network control management device NCMS. The network control management device NCMS registers network state information between the base station BS, the relay station RS1, and the relay station RS2 from DIUC and UIUC. On the other hand, the network control management device NCMS returns ROUTE-ACK to the base station BS. The base station BS that has received ROUTE-ACK returns REG-ACK to the relay station RS1, and the relay station RS1 returns REG-RSP to the relay station RS2.

図４は、本発明における中継局の機能構成図である。   FIG. 4 is a functional configuration diagram of the relay station in the present invention.

図４によれば、中継局２は、無線通信インタフェース部２０と、ネットワークエントリ処理部２１と、中継回線情報送信部２２と、中継回線情報受信部２３と、接続先選択部２４と、経路情報蓄積部２５とを有する。これら機能部は、中継局に搭載されたコンピュータを機能させるプログラムを実行することによっても実現できる。   According to FIG. 4, the relay station 2 includes a radio communication interface unit 20, a network entry processing unit 21, a relay line information transmission unit 22, a relay line information reception unit 23, a connection destination selection unit 24, route information And an accumulation unit 25. These functional units can also be realized by executing a program that causes a computer installed in the relay station to function.

ネットワークエントリ処理部２１は、基地局ＢＳ（又は親中継局）に対して、ネットワークエントリをする。前述したＳ３０２、Ｓ３０３及びＳ３０６について、RNG-REQ/RSP、SBC-REQ/RSP及びREG-REQ/RSPを送受信する。ネットワークエントリ処理部２１は、接続先選択部２４によって選択された基地局ＢＳ（又は親中継局）に対して、ネットワークエントリをするように制御する。   The network entry processing unit 21 makes a network entry for the base station BS (or the parent relay station). RNG-REQ / RSP, SBC-REQ / RSP, and REG-REQ / RSP are transmitted / received in S302, S303, and S306 described above. The network entry processing unit 21 controls the base station BS (or parent relay station) selected by the connection destination selection unit 24 to make a network entry.

中継回線情報送信部２２は、基地局（又は親中継局）−第１の中継局間の中継回線情報をブロードキャストする。前述したＳ３１１について、中継局ＲＳ１の処理をする。   The trunk line information transmission unit 22 broadcasts the trunk line information between the base station (or parent relay station) and the first relay station. For S311 described above, the relay station RS1 performs processing.

中継回線情報受信部２３は、基地局及び／又は複数の第１の中継局から中継回線情報を受信する。前述したＳ３０１及びＳ３１１について、中継局ＲＳ２の処理をする。受信した回線情報は、経路情報蓄積部２５へ通知する。   The trunk line information receiving unit 23 receives trunk line information from the base station and / or a plurality of first relay stations. The relay station RS2 performs the processing of S301 and S311 described above. The received line information is notified to the route information storage unit 25.

接続先選択部２４は、変調速度が最大となる中継回線情報を有する基地局又は第１の中継局を決定する。前述したＳ３１２について、中継局ＲＳ２の処理をする。   The connection destination selection unit 24 determines the base station or the first relay station having the relay line information that maximizes the modulation rate. In S312 described above, the relay station RS2 performs processing.

前述した本発明における種々の実施形態によれば、当業者は、本発明の技術思想及び見地の範囲における種々の変更、修正及び省略を容易に行うことができる。前述の説明はあくまで例であって、何ら制約しようとするものではない。本発明は、特許請求の範囲及びその均等物として限定するものにのみ制約される。   According to the various embodiments of the present invention described above, those skilled in the art can easily make various changes, modifications and omissions within the scope of the technical idea and the viewpoint of the present invention. The above description is merely an example, and is not intended to be restrictive. The invention is limited only as defined in the following claims and the equivalents thereto.

従来技術におけるシステム構成図である。It is a system block diagram in a prior art. 本発明におけるシステム構成図である。It is a system configuration diagram in the present invention. 本発明におけるシーケンス図である。It is a sequence diagram in the present invention. 本発明における中継局の機能構成図である。It is a function block diagram of the relay station in this invention.

符号の説明Explanation of symbols

１ 基地局
２ 中継局
２０ 無線通信インタフェース部
２１ ネットワークエントリ処理部
２２ 中継回線情報送信部
２３ 中継回線情報受信部
２４ 接続先選択部
２５ 経路情報蓄積部
３ 移動局 DESCRIPTION OF SYMBOLS 1 Base station 2 Relay station 20 Wireless communication interface part 21 Network entry process part 22 Relay line information transmission part 23 Relay line information reception part 24 Connection destination selection part 25 Path | route information storage part 3 Mobile station

Claims (9)

ＩＥＥＥ８０２．１６を適用した基地局と移動局とが、１つ以上の中継局を介して通信するシステムにおける中継局の接続先選択方法であって、
第１の中継局は、基地局又は親中継局に対してネットワークエントリをした後で、基地局又は親中継局−第１の中継局間の第１の中継回線情報をブロードキャストする第１のステップと、
第２の中継局は、基地局及び／又は複数の第１の中継局から第１の中継回線情報を受信する第２のステップと、
第２の中継局は、変調速度が最大となる第１の中継回線情報を有する基地局又は第１の中継局に対してネットワークエントリをする第３のステップと
を有することを特徴とする中継局の接続先選択方法。 A relay station connection destination selection method in a system in which a base station and a mobile station to which IEEE 802.16 is applied communicates via one or more relay stations,
The first relay station first makes a network entry to the base station or the parent relay station, and then broadcasts the first relay line information between the base station or the parent relay station and the first relay station. When,
A second step of receiving second relay line information from the base station and / or the plurality of first relay stations;
The second relay station has a third step of making a network entry with respect to the base station having the first relay line information with the maximum modulation rate or the first relay station. Connection destination selection method. 第１の中継回線情報は、Burst Profileを表すDIUC(Downlink Interval Usage Code)値を含むDCD(Downlink Channel Descriptor)と、UIUC(Uplink Interval Usage Code)値を含むUCD(Uplink Channel Descriptor)とであることを特徴とする請求項１に記載の中継局の接続先選択方法。   The first trunk line information is a DCD (Downlink Channel Descriptor) including a DIUC (Downlink Interval Usage Code) value representing a Burst Profile and a UCD (Uplink Channel Descriptor) including a UIUC (Uplink Interval Usage Code) value. The relay station connection destination selection method according to claim 1. 第２の中継局は、第１の中継回線情報と、第１の中継局−第２の中継局間の第２の中継回線情報とを比較し、
両中継回線が同時に利用可能である場合、
想定Burst Profile＝
ｍｉｎ（第１の中継回線の変調速度，第２の中継回線の変調速度）
両中継回線が同時に利用可能でない場合、
想定Burst Profile＝（第１の中継回線の変調速度×第２の中継回線の変調速度）／
（第１の中継回線の変調速度＋第２の中継回線の変調速度）
として、想定Burst Profileが最大となるように基地局又は第１の中継局を選択することを特徴とする請求項２に記載の中継局の接続先選択方法。 The second relay station compares the first relay line information with the second relay line information between the first relay station and the second relay station, and
If both trunk lines are available at the same time,
Assumed Burst Profile =
min (modulation speed of the first trunk line, modulation speed of the second trunk line)
If both trunk lines are not available at the same time,
Assumed Burst Profile = (Modulation speed of first trunk line × Modulation speed of second trunk line) /
(Modulation speed of the first trunk line + modulation speed of the second trunk line)
3. The relay station connection destination selection method according to claim 2, wherein the base station or the first relay station is selected so that the assumed Burst Profile is maximized. ＩＥＥＥ８０２．１６を適用した基地局と移動局との間で通信を中継する中継局であって、
基地局又は親中継局に対してネットワークエントリをするネットワークエントリ処理手段と、
基地局又は親中継局−第１の中継局間の中継回線情報をブロードキャストする中継回線情報送信手段と、
基地局及び／又は複数の第１の中継局から中継回線情報を受信する中継回線情報受信手段と、
変調速度が最大となる中継回線情報を有する基地局又は第１の中継局を決定する接続先選択手段と
を有し、前記接続先選択手段によって選択された基地局又は親中継局に対して、前記ネットワークエントリ処理手段がネットワークエントリをするように制御することを特徴とする中継局。 A relay station that relays communication between a base station and a mobile station to which IEEE 802.16 is applied,
Network entry processing means for making a network entry for a base station or a parent relay station;
A relay line information transmitting means for broadcasting the relay line information between the base station or the parent relay station and the first relay station;
Relay line information receiving means for receiving relay line information from a base station and / or a plurality of first relay stations;
A connection destination selection means for determining the base station or the first relay station having the relay line information with the maximum modulation rate, and for the base station or the parent relay station selected by the connection destination selection means, A relay station that controls the network entry processing means to perform network entry. 前記中継回線情報は、Burst Profileを表すDIUC値を含むDCDと、UIUC値を含むUCDとであることを特徴とする請求項４に記載の中継局。   The relay station according to claim 4, wherein the relay line information includes a DCD including a DIUC value representing a Burst Profile and a UCD including a UIUC value. 前記接続先選択手段は、第１の中継回線情報と、第１の中継局−第２の中継局間の第２の中継回線情報とを比較し、
両中継回線が同時に利用可能である場合、
想定Burst Profile＝
ｍｉｎ（第１の中継回線の変調速度，第２の中継回線の変調速度）
両中継回線が同時に利用可能でない場合、
想定Burst Profile＝（第１の中継回線の変調速度×第２の中継回線の変調速度）／
（第１の中継回線の変調速度＋第２の中継回線の変調速度）
として、想定Burst Profileが最大となるように基地局又は第１の中継局を選択することを特徴とする請求項５に記載の中継局。 The connection destination selection means compares the first trunk line information with the second trunk line information between the first relay station and the second relay station,
If both trunk lines are available at the same time,
Assumed Burst Profile =
min (modulation speed of the first trunk line, modulation speed of the second trunk line)
If both trunk lines are not available at the same time,
Assumed Burst Profile = (Modulation speed of first trunk line × Modulation speed of second trunk line) /
(Modulation speed of the first trunk line + modulation speed of the second trunk line)
The relay station according to claim 5, wherein the base station or the first relay station is selected so that the assumed Burst Profile is maximized. ＩＥＥＥ８０２．１６を適用した基地局と移動局との間で通信を中継する中継局に搭載されたコンピュータを機能させるプログラムであって、
基地局又は親中継局に対してネットワークエントリをするネットワークエントリ処理手段と、
基地局又は親中継局−第１の中継局間の中継回線情報をブロードキャストする中継回線情報送信手段と、
基地局及び／又は複数の第１の中継局から中継回線情報を受信する中継回線情報受信手段と、
変調速度が最大となる中継回線情報を有する基地局又は第１の中継局を決定する接続先選択手段と
を有し、前記接続先選択手段によって選択された基地局又は親中継局に対して、前記ネットワークエントリ処理手段がネットワークエントリをすべく制御するようにコンピュータを機能させることを特徴とする中継局用プログラム。 A program for causing a computer installed in a relay station that relays communication between a base station and a mobile station to which IEEE 802.16 is applied to function.
Network entry processing means for making a network entry for a base station or a parent relay station;
A relay line information transmitting means for broadcasting the relay line information between the base station or the parent relay station and the first relay station;
Relay line information receiving means for receiving relay line information from a base station and / or a plurality of first relay stations;
A connection destination selection means for determining the base station or the first relay station having the relay line information with the maximum modulation rate, and for the base station or the parent relay station selected by the connection destination selection means, A relay station program for causing a computer to function so that the network entry processing means controls a network entry. 前記中継回線情報は、Burst Profileを表すDIUC値を含むDCDと、UIUC値を含むUCDとであることを特徴とする請求項７に記載の中継局用プログラム。   8. The relay station program according to claim 7, wherein the relay line information is a DCD including a DIUC value representing a Burst Profile and a UCD including a UIUC value. 前記接続先選択手段は、第１の中継回線情報と、第１の中継局−第２の中継局間の第２の中継回線情報とを比較し、
両中継回線が同時に利用可能である場合、
想定Burst Profile＝
ｍｉｎ（第１の中継回線の変調速度，第２の中継回線の変調速度）
両中継回線が同時に利用可能でない場合、
想定Burst Profile＝（第１の中継回線の変調速度×第２の中継回線の変調速度）／
（第１の中継回線の変調速度＋第２の中継回線の変調速度）
として、想定Burst Profileが最大となるように基地局又は第１の中継局を選択するようにコンピュータを機能させることを特徴とする請求項８に記載の中継局用プログラム。 The connection destination selection means compares the first trunk line information with the second trunk line information between the first relay station and the second relay station,
If both trunk lines are available at the same time,
Assumed Burst Profile =
min (modulation speed of the first trunk line, modulation speed of the second trunk line)
If both trunk lines are not available at the same time,
Assumed Burst Profile = (Modulation speed of first trunk line × Modulation speed of second trunk line) /
(Modulation speed of the first trunk line + modulation speed of the second trunk line)
9. The relay station program according to claim 8, wherein the computer functions to select the base station or the first relay station so that the assumed Burst Profile is maximized.
JP2006239903A 2006-09-05 2006-09-05 Relay station connection destination selection method, relay station and program to which IEEE 802.16 is applied Active JP4476985B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2006239903A JP4476985B2 (en) 2006-09-05 2006-09-05 Relay station connection destination selection method, relay station and program to which IEEE 802.16 is applied

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2006239903A JP4476985B2 (en) 2006-09-05 2006-09-05 Relay station connection destination selection method, relay station and program to which IEEE 802.16 is applied

Publications (2)

Publication Number Publication Date
JP2008066827A true JP2008066827A (en) 2008-03-21
JP4476985B2 JP4476985B2 (en) 2010-06-09

Family

ID=39289186

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2006239903A Active JP4476985B2 (en) 2006-09-05 2006-09-05 Relay station connection destination selection method, relay station and program to which IEEE 802.16 is applied

Country Status (1)

Country Link
JP (1) JP4476985B2 (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010021513A2 (en) * 2008-08-22 2010-02-25 엘지전자 주식회사 Method for managing identification information of heterogeneous cells
JP2010050520A (en) * 2008-08-19 2010-03-04 Buffalo Inc Wireless lan relay device, wireless lan relay method, and computer program
JP2011135594A (en) * 2011-01-28 2011-07-07 Buffalo Inc Wireless lan relay apparatus, wireless lan relay method, and computer program
WO2011121714A1 (en) * 2010-03-30 2011-10-06 富士通株式会社 Mobile communication system, wireless relay device, mobile communication device, and wireless communication method
WO2012020783A1 (en) * 2010-08-13 2012-02-16 日本電気株式会社 Wireless communication network and method for selecting path
JP2012530425A (en) * 2009-06-19 2012-11-29 ゼットティーイー コーポレーション Relay node access method and apparatus

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8503349B2 (en) 2008-08-19 2013-08-06 Buffalo Inc. Wireless LAN relay apparatus
JP2010050520A (en) * 2008-08-19 2010-03-04 Buffalo Inc Wireless lan relay device, wireless lan relay method, and computer program
JP4679616B2 (en) * 2008-08-19 2011-04-27 株式会社バッファロー Wireless LAN relay device, wireless LAN relay method, and computer program
WO2010021513A3 (en) * 2008-08-22 2010-06-17 엘지전자 주식회사 Method for managing identification information of heterogeneous cells
WO2010021513A2 (en) * 2008-08-22 2010-02-25 엘지전자 주식회사 Method for managing identification information of heterogeneous cells
JP2011530948A (en) * 2008-08-22 2011-12-22 エルジー エレクトロニクス インコーポレイティド Management method of heterogeneous cell identification information
JP2012530425A (en) * 2009-06-19 2012-11-29 ゼットティーイー コーポレーション Relay node access method and apparatus
US8750196B2 (en) 2009-06-19 2014-06-10 Zte Corporation Method and device for relay node access
WO2011121714A1 (en) * 2010-03-30 2011-10-06 富士通株式会社 Mobile communication system, wireless relay device, mobile communication device, and wireless communication method
JP5598535B2 (en) * 2010-03-30 2014-10-01 富士通株式会社 Mobile communication system, radio relay apparatus, mobile communication apparatus, and radio communication method
US9118381B2 (en) 2010-03-30 2015-08-25 Fujitsu Limited Mobile communication system, radio relay apparatus, mobile communication apparatus, and radio communication method
WO2012020783A1 (en) * 2010-08-13 2012-02-16 日本電気株式会社 Wireless communication network and method for selecting path
JP5585653B2 (en) * 2010-08-13 2014-09-10 日本電気株式会社 Wireless communication network and route selection method
JP2011135594A (en) * 2011-01-28 2011-07-07 Buffalo Inc Wireless lan relay apparatus, wireless lan relay method, and computer program

Also Published As

Publication number Publication date
JP4476985B2 (en) 2010-06-09

Similar Documents

Publication Publication Date Title
US7933236B2 (en) Methods and systems for a wireless routing architecture and protocol
JP4876104B2 (en) Apparatus and method for processing transmission information of broadcast message configured by relay station in broadband wireless access communication system using multi-hop relay system
US8233398B2 (en) Apparatus and method for transmitting frame information in multi-hop relay broadband wireless access communication system
US7742452B2 (en) System and method for dynamic preamble assignment
US8345587B2 (en) Relay station, base station and method for extending a coverage area of a base station in a radio network
US8000283B2 (en) Method and apparatus for relay station neighbor discovery
US20070109962A1 (en) Method and apparatus for implementing relay
JP5191202B2 (en) Wireless communication system, method, and data structure
JP2009544175A (en) Method for accessing a channel in an orthogonal frequency division multiple access (OFDMA) mobile multi-hop relay wireless network
JP2008177969A (en) Ofdma radio system and relay station
JP4540646B2 (en) Relay station selection method, network control management apparatus, and program to which IEEE 802.16 is applied
KR100871338B1 (en) Apparatus and method for capability negotiation in a multi-hop relay broadband wireless access communication system
WO2009057947A2 (en) System and method for providing multicast and broadcast service in communication system
JP4476985B2 (en) Relay station connection destination selection method, relay station and program to which IEEE 802.16 is applied
JP2007158662A (en) Radio relay system and method
JP4990357B2 (en) Information providing apparatus and method for intermediate link area in broadband wireless access communication system using multi-hop relay system
JP2009130790A (en) Radio communication system, radio relay method, base station device and relay station device
KR100972957B1 (en) Apparatus and method for frame information transmitting in multi-hop relay broadband wireless access communication system
CN102577276B (en) Relay transmission method and apparatus thereof
KR100965899B1 (en) Method, wireless communication system, tangible machine-readable medium, and communication apparatus for transmitting and relaying channel descriptor based on a multi-hop relay standard
KR101498056B1 (en) Method of supporting a Multicast and Broadcast service in wireless access system supporting relay
JP2008228300A (en) Terminal information releasing and processing apparatus and its method in broadband wireless access communication system using multi-hop relay scheme
JP4863950B2 (en) Wireless communication system, wireless relay method, base station apparatus, relay station apparatus, and wireless relay program

Legal Events

Date Code Title Description
A977 Report on retrieval

Free format text: JAPANESE INTERMEDIATE CODE: A971007

Effective date: 20091215

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20100105

A521 Written amendment

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20100203

TRDD Decision of grant or rejection written
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20100309

A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20100310

R150 Certificate of patent or registration of utility model

Free format text: JAPANESE INTERMEDIATE CODE: R150

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20130319

Year of fee payment: 3