JP2000354002A - Dama controller - Google Patents
Dama controllerInfo
- Publication number
- JP2000354002A JP2000354002A JP16269099A JP16269099A JP2000354002A JP 2000354002 A JP2000354002 A JP 2000354002A JP 16269099 A JP16269099 A JP 16269099A JP 16269099 A JP16269099 A JP 16269099A JP 2000354002 A JP2000354002 A JP 2000354002A
- Authority
- JP
- Japan
- Prior art keywords
- frequency
- information
- modulation product
- cross
- assigned
- 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.)
- Pending
Links
Landscapes
- Radio Relay Systems (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、衛星通信システム
において、網内周波数の割当てを行うＤＡＭＡ制御装置
に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a DAMA control device for allocating intra-network frequencies in a satellite communication system.
【０００２】[0002]
【従来の技術】図５は、従来のＤＡＭＡ制御装置の構成
を示すブロック図で、同図において、１は周波数割当て
受信部、２は周波数割当て送信部、３は周波数テーブ
ル、４は上記周波数割当て受信部１からの割当て要求を
受け、周波数テーブル３の空き回線から、例えばランダ
ムに割当て周波数を決定する制御処理部である。2. Description of the Related Art FIG. 5 is a block diagram showing a configuration of a conventional DAMA control device. In FIG. 5, reference numeral 1 denotes a frequency allocation receiving unit, 2 denotes a frequency allocation transmitting unit, 3 denotes a frequency table, and 4 denotes the above frequency allocation. A control processing unit that receives an allocation request from the receiving unit 1 and randomly determines an allocated frequency, for example, from an empty line in the frequency table 3.
【０００３】次に動作について説明する。制御処理部４
は、周波数割当て受信部１からの発呼要求により、割当
て可能帯域内の全周波数を登録した周波数テーブル３の
中から、周波数の［使用中／空き］データをもとに、例
えばランダムに割当てする周波数を決定し、その周波数
情報を周波数割当て送信部２に送出するとともに、上記
周波数を「使用中」として登録する。また、制御処理部
４は、周波数割当て受信部１から終話信号を受け取る
と、当該周波数の［使用中／空き］状態を「空き」に戻
し、周波数割当て送信部２を介して、終話処理を行う。Next, the operation will be described. Control processing unit 4
In response to a call request from the frequency allocation receiving unit 1, for example, random allocation is performed on the basis of frequency [busy / empty] data from the frequency table 3 in which all frequencies within the allocatable band are registered. The frequency is determined, the frequency information is transmitted to the frequency allocation transmitting unit 2, and the frequency is registered as "in use". When the control processing unit 4 receives the call termination signal from the frequency allocation receiving unit 1, the control unit 4 returns the “in use / free” state of the frequency to “free”, and performs the call termination processing via the frequency allocation transmission unit 2. I do.
【０００４】[0004]
【発明が解決しようとする課題】しかしながら、従来の
ＤＡＭＡ制御装置は以上の様に構成されているので、混
変調積を最小にするような周波数割当てができず、その
ため通信品質（Ｃ／Ｎ）を最良化することができないと
いった問題があった。However, since the conventional DAMA controller is configured as described above, it is not possible to allocate a frequency so as to minimize the cross-modulation product, and therefore, the communication quality (C / N) There was a problem that it could not be optimized.
【０００５】本発明は、上記のような問題を解決する為
になされたもので、混変調積を最小にする周波数割当て
ができるＤＡＭＡ制御装置を得ることを目的とする。SUMMARY OF THE INVENTION The present invention has been made to solve the above-described problems, and has as its object to provide a DAMA control device capable of assigning a frequency that minimizes cross-modulation products.
【０００６】[0006]
【課題を解決するための手段】請求項１に記載のＤＡＭ
Ａ制御装置は、割当て可能帯域内の周波数情報を備えた
周波数テーブルに周波数の占有帯域幅情報と電力情報と
を付加するとともに、割当てする周波数を決定して割当
てる上記制御処理部に、上記周波数テーブルの情報に基
づいて、割当て周波数の混変調積を演算する手段と、上
記演算結果に基づいて混変調積が最小となるように新た
に割当てる周波数を設定する割当て周波数設定手段とを
設け、割当て周波数内での周波数の最適配置を行うよう
にしたものである。A DAM according to claim 1, wherein:
A control device adds the occupied bandwidth information of the frequency and the power information to the frequency table including the frequency information in the allocatable band, and determines the frequency to be allocated and allocates the frequency to the control processing unit. Means for calculating the cross-modulation product of the assigned frequency based on the information of the above, and assigned frequency setting means for setting a newly assigned frequency based on the calculation result so that the cross-modulation product is minimized. The optimum arrangement of the frequency within the sub-range is performed.
【０００７】[0007]
【発明の実施の形態】以下、本発明の実施の形態につい
て、図面に基づき説明する。図１は、本実施の形態に係
わるＤＡＭＡ制御装置の構成を示すブロック図で、同図
において、１は周波数割当て受信部、２３は周波数割当
て送信部、３は割当て可能帯域内の周波数情報と占有帯
域幅情報と電力情報とを備えた送信キャリア情報周波数
テーブル、２４は上記送信キャリア情報周波数テーブル
２３の情報に基づいて、割当て周波数の混変調積を演算
する混変調積演算手段（ＩＭ演算手段）２５と、このＩ
Ｍ演算手段２５の演算結果に基づいて混変調積が最小と
なるように、割当て周波数帯域内において新たに割当て
する周波数を設定する割当て周波数設定手段２６とを備
え、割当て周波数内での周波数の最適配置を行う制御処
理部ある。Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a block diagram showing a configuration of a DAMA control apparatus according to the present embodiment. In FIG. 1, reference numeral 1 denotes a frequency allocation receiving unit, 23 denotes a frequency allocation transmitting unit, and 3 denotes frequency information and occupation in an allocatable band. A transmission carrier information frequency table having bandwidth information and power information, 24 is a cross modulation product calculation means (IM calculation means) for calculating a cross modulation product of an assigned frequency based on the information of the transmission carrier information frequency table 23. 25 and this I
And an assignment frequency setting means 26 for setting a frequency to be newly assigned within the assigned frequency band so that the cross-modulation product is minimized based on the calculation result of the M calculation means 25. There is a control processing unit that performs arrangement.
【０００８】本実施の形態のＤＡＭＡ制御装置は、従来
の周波数テーブルに代えて、図２に示すような、割当て
可能帯域内の周波数情報と当該周波数の占有帯域幅情報
と電力情報とを備えた送信キャリア情報周波数テーブル
２３を用いて、割当て可能な周波数の混変調積の演算を
行い、混変調積を最小にするような周波数割当てを行う
ものである。すなわち、周波数割当て受信部１からの発
呼要求を受けた制御処理部２４は、ＩＭ演算手段２５に
より、送信キャリア情報周波数テーブル２３の情報に基
づいて、混変調積の演算を行い、割当て周波数設定手段
２６において、混変調積が最小になるような周波数配置
を見出して割当てする周波数を決定し、その周波数情報
を周波数割当て送信部２に送出する。The DAMA control apparatus according to the present embodiment has, as shown in FIG. 2, frequency information in an allocatable band, occupied bandwidth information of the frequency, and power information, instead of the conventional frequency table. The transmission carrier information frequency table 23 is used to calculate a cross-modulation product of assignable frequencies, and to perform frequency allocation so as to minimize the cross-modulation product. That is, the control processing unit 24 that has received the call request from the frequency allocation receiving unit 1 performs the calculation of the cross-modulation product based on the information of the transmission carrier information frequency table 23 by the IM calculating unit 25, and sets the allocated frequency. The means 26 finds a frequency arrangement that minimizes the cross-modulation product, determines the frequency to be allocated, and sends the frequency information to the frequency allocation transmitting unit 2.
【０００９】図３は、上記割当て周波数を決定するため
のフローチャートの一例である。発呼情報が入力される
（ステップＳ１）と、制御処理部２４は、送信キャリア
情報テーブル２３から割当て可能な周波数（空き周波
数）を選択する発呼情報管理を行う（ステップＳ２）。
次に、上記周波数の中から混変調積の演算を行うための
空き周波数を選択し、上記選択された空き周波数の占有
帯域幅情報と電力情報と送信キャリア情報テーブル２３
から呼び出すＩＭ計算使用値管理を行う（ステップＳ
３）った後、ＩＭ演算手段２５により、上記各周波数に
ついて混変調積の演算を行い、割当て周波数設定手段２
６により、混変調積が最小となる周波数を決定し（ステ
ップＳ４〜Ｓ７）、その周波数情報を周波数割当て送信
部２に送出するとともに、上記周波数を「使用中」とし
て登録する。その後、周波数割当て受信部１から終話信
号が入力したかどうかを判別し（ステップＳ８）、終話
信号を受け取った場合には、当該周波数の［使用中／空
き］状態を「空き」に戻す終話情報管理を行う（ステッ
プＳ９）。FIG. 3 is an example of a flowchart for determining the assigned frequency. When the call information is input (step S1), the control processing unit 24 performs call information management for selecting an assignable frequency (empty frequency) from the transmission carrier information table 23 (step S2).
Next, an empty frequency for performing the calculation of the cross modulation product is selected from the above frequencies, and the occupied bandwidth information, the power information, and the transmission carrier information table 23 of the selected empty frequency are selected.
Manage IM calculation usage value called from (step S
3) After that, the cross-modulation product is calculated for each of the above frequencies by the IM calculation means 25, and the assigned frequency setting means 2
6, the frequency at which the cross-modulation product is minimized is determined (steps S4 to S7), the frequency information is transmitted to the frequency allocation transmitting unit 2, and the frequency is registered as "in use". Thereafter, it is determined whether or not a call termination signal has been input from the frequency allocation receiving unit 1 (step S8). End call information management is performed (step S9).
【００１０】このように、本実施の形態では、割当て可
能帯域内の周波数情報と当該周波数の占有帯域幅情報と
電力情報とを備えた送信キャリア情報周波数テーブル２
３を設けるとともに、混変調積の演算を行うＩＭ演算手
段２５を設けて、割当て可能な周波数の混変調積の演算
を行い、混変調積を最小にするような周波数割当てを行
うようにしたので、割当て周波数内での周波数の最適配
置を行うことができ、通信品質（Ｃ／Ｎ）を向上させる
ことができる。As described above, in the present embodiment, the transmission carrier information frequency table 2 including the frequency information in the allocatable band, the occupied bandwidth information of the frequency, and the power information.
3 and the IM calculation means 25 for calculating the cross-modulation product is provided to calculate the cross-modulation product of the assignable frequency, and to perform the frequency allocation so as to minimize the cross-modulation product. Optimum allocation of frequencies within the allocated frequency can be performed, and communication quality (C / N) can be improved.
【００１１】なお、上記実施の形態では、送信キャリア
情報テーブル２３からの割当て可能な周波数の中から、
混変調積の演算を行うための空き周波数を選択して混変
調積の演算を行ったが、上記割当て可能な周波数全てに
対して混変調積の演算を行って混変調積が最小となる周
波数を決定してもよい。あるいは、空き周波数の数に応
じて、混変調積の演算を行うための空き周波数の数を変
更するようにしても良い。また、上記例では、送信キャ
リア情報周波数テーブル２３を制御処理部２４の外部に
設けた構成としたが、図４に示すように、送信キャリア
情報周波数テーブル２３を制御処理部２４内に格納する
構成としても良い。In the above-described embodiment, the frequencies that can be assigned from the transmission carrier information table 23 are
A cross-modulation product was calculated by selecting an empty frequency for performing the cross-modulation product calculation, but the frequency at which the cross-modulation product was minimized by performing the cross-modulation product calculation on all of the assignable frequencies described above. May be determined. Alternatively, the number of vacant frequencies for calculating the cross-modulation product may be changed according to the number of vacant frequencies. In the above example, the transmission carrier information frequency table 23 is provided outside the control processing unit 24. However, as shown in FIG. 4, the transmission carrier information frequency table 23 is stored in the control processing unit 24. It is good.
【００１２】[0012]
【発明の効果】以上説明したように、請求項１に記載の
発明によれば、割当て可能帯域内の周波数情報を備えた
周波数テーブルに当該周波数の占有帯域幅情報と電力情
報とを付加するとともに、割当てする周波数を決定して
割当てる上記制御処理部に、上記周波数テーブルの情報
に基づいて、割当て周波数の混変調積を演算する手段
と、上記演算結果に基づいて混変調積が最小となるよう
に新たに割当てする周波数を設定する割当て周波数設定
手段とを設けたので、割当て周波数内での周波数の最適
配置を行うことができ、通信品質（Ｃ／Ｎ比）の改善を
図ることができる。As described above, according to the first aspect of the present invention, the occupied bandwidth information and the power information of the frequency are added to the frequency table including the frequency information in the allocatable band. Means for determining the frequency to be allocated and allocating to the control processing unit, based on the information of the frequency table, for calculating the cross-modulation product of the allocated frequency, and for minimizing the cross-modulation product based on the calculation result. And an assigned frequency setting means for setting a newly assigned frequency, it is possible to optimally arrange the frequencies within the assigned frequency, and to improve the communication quality (C / N ratio).
【図１】 本発明の実施形態に係わるＤＡＭＡ制御装置
の構成を示すブロック図である。FIG. 1 is a block diagram illustrating a configuration of a DAMA control device according to an embodiment of the present invention.
【図２】 送信キャリア情報テーブルの一例を示す図で
ある。FIG. 2 is a diagram illustrating an example of a transmission carrier information table.
【図３】 割当て周波数の設定方法の一例を示すフロー
チャートである。FIG. 3 is a flowchart illustrating an example of a method of setting an assigned frequency.
【図４】 本実施形態に係わるＤＡＭＡ制御装置の他の
構成を示すブロック図である。FIG. 4 is a block diagram showing another configuration of the DAMA control device according to the present embodiment.
【図５】 従来のＤＡＭＡ制御装置の他の構成を示すブ
ロック図である。FIG. 5 is a block diagram showing another configuration of a conventional DAMA control device.
１ 周波数割当て受信部、２ 周波数割当て送信部、２
３ 送信キャリア情報周波数テーブル、２４ 制御処理
部、２５ ＩＭ演算手段、２６ 割当て周波数設定手
段。1 frequency allocation receiving section, 2 frequency allocation transmitting section, 2
3 Transmission carrier information frequency table, 24 control processing unit, 25 IM calculation means, 26 assigned frequency setting means.
Claims (1)
周波数テーブルと、上記周波数テーブルの中から割当て
すべき周波数を決定して割当てる制御処理部とを備えた
ＤＡＭＡ制御装置において、上記周波数テーブルに上記
周波数の占有帯域幅情報と電力情報とを付加するととも
に、上記制御処理部に、上記周波数テーブルの情報に基
づいて、割当て周波数の混変調積を演算する手段と、上
記演算結果に基づいて混変調積が最小となるように新た
に割当てる周波数を設定する割当て周波数設定手段とを
設けたことを特徴とするＤＡＭＡ制御装置。1. A DAMA control device comprising: a frequency table having frequency information in an allocatable band; and a control processing unit for determining and assigning a frequency to be assigned from the frequency table. Means for adding the occupied bandwidth information of the frequency and the power information, calculating the cross-modulation product of the assigned frequency to the control processing unit based on the information of the frequency table, A DAMA control device, further comprising: assigned frequency setting means for setting a newly assigned frequency so that a modulation product is minimized.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16269099A JP2000354002A (en) | 1999-06-09 | 1999-06-09 | Dama controller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16269099A JP2000354002A (en) | 1999-06-09 | 1999-06-09 | Dama controller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2000354002A true JP2000354002A (en) | 2000-12-19 |
Family
ID=15759459
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16269099A Pending JP2000354002A (en) | 1999-06-09 | 1999-06-09 | Dama controller |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2000354002A (en) |
-
1999
- 1999-06-09 JP JP16269099A patent/JP2000354002A/en active Pending
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