ARIB STD-T81

特定小電力無線局
周波数ホッピング方式を用いる
2.4GHz帯移動体識別用無線設備
2.4GHz-BAND RFID EQUIPMENT USING FREQUENCY HOPPING SYSTEMFOR SPECIFIED LOW POWER RADIO STATION

標

準規格

ARIB STANDARD

ARIB STD-T81

平成14年 3月28日
平成15年 7月29日
平成17年11月30日
平成18年 3月14日

社団法人

電波

1.3版

策定
１．１改定
１．２改定
１．３改定

産業会

Association of Radio Industries and Businesses

ARIB STD-T81

まえがき

社団法人電波産業会は、無線機器製造者、電気通信事業者、放送事業者及び利用者等の参加を得て、各種の電波利用システムに関する無線設備に標準的な仕様等の基本的な要件を「標準規格」として策定している。
標準規格は、周波数の有効利用及び他の利用者との混信の回避を図る目的から定められる国の技術基準と、併せて無線設備の適正品質、互換性の確保等、無線機器製造者及び利用者の利便を図る目的から策定される民間の任意基準をとりまとめて策定される民間の規格である。
本標準規格は、「特定小電力無線局周波数ホッピング方式を用いる 2.4GHz 帯移動体識別用無線設備」について策定されたもので、策定段階における公正性及び透明性を確保するため、内外無差別に広く無線機器製造者、利用者等利害関係者の参加を得た当会の規格会議の総意により策定されたものである。
本標準規格で規定する無線設備は、2,400〜2,483.5MHz を使用するもので、この周波数帯は、ARIB STD-T66 で規定される第二世代小電力データ通信システム、RCR STD-1 及び RCR STD-29
で規定される 2.4GHz 帯移動体識別用無線設備並びにアマチュア無線局と重複しており、電波の干渉による障害が発生する可能性がある。同一周波数帯での干渉を回避するために、干渉回避方法や解決方法を記述した「特定小電力無線局周波数ホッピング方式を用いる 2.4GHz 帯移動体識別用無線設備の運用の手引き」を作成し、参考資料として添付した。
本標準規格が、無線機器製造者、試験機関、利用者等に積極的に活用されることを希望する。

ARIB STD-T81

目

次まえがき
第 1 章 一般事項··································································································

1·············································································································

1

1.1

概要

1.2

適用範囲

·······································································································11.3

準拠文書·······································································································1

第 2 章 標準システム····························································································

2························································································

22.1

標準システムの構成

2.2

標準システムの運用形態··················································································

2第 3 章 無線設備の技術的条件················································································

3·······································································································

33.1

一般条件

(1) 通信の内容

3.2······························································································

3(2) 周波数及び指定周波数帯 ···············································································

3(3) 使用環境条件···························································································

3··········································································································4送信装置·································································································

4(1) 空中線電力······························································································

4質問器

3.2.1

(2) 空中線電力の許容偏差(3) 周波数の許容偏差···············································································

4·····················································································

4(4) 伝送方式及び変調方式(5) 周波数滞留時間···············································································

5························································································

5(6) 占有周波数帯幅の許容値············································································(7) スプリアス発射又は不要発射の強度の許容値
3.2.2

受信装置

5·················································

5·································································································

6(1) 副次的に発する電波等の限度······································································

6·····················································································

6応答器··········································································································63.4 制御装置·······································································································

7(2) 応答器からの受信
3.3(1) 混信防止機能···························································································(2) 送信時間制限装置·····················································································i77

ARIB STD-T81(3) キャリアセンス
3.53.6

空中線························································································7··········································································································

7(1) 空中線の構造···························································································

7(2) 空中線の利得···························································································

7その他··········································································································7(1) 筐体·······································································································7(2) 一の筐体に収めなければならない装置(3) 技術基準適合証明に係る表示··························································

7······································································

7(4) データ処理装置とのインタフェース
第 4 章 測定法·····························································

7·····································································································

8···········································

9

参考１ 特定無線設備の技術基準適合証明に係る試験項目
参考２ 特定小電力無線局周波数ホッピング方式を用いる

2.4GHz 帯移動体識別用無線設備の運用の手引き ··········· 10

改定履歴表ii