ローカル5gの 非同期運用について - 総務省
クアルコムジャパン合同会社
�業班 資料11-2 P.2再掲同期・非同期の定義 同期 無線フレーム開始タイミング 及び 上下リンク通信パターンが一致 非同期 DD同期TDDTime無線フレーム（10 msec）TDD1DDDDDDD S UUDDDDDDD S UUTDD2DDDDDDD S UUDDDDDDD S UU �誤差は 基地局間で /-1.5us 以内）かつ 上下リンク通信パターンが一致D: 下りスロット、U: 上りスロット、S: トTimeTDD1 D D D D D D D S U U D D D D D D D S U UTDD2DDDDDDD S UUDDDDDDD S UU �、またはTimeTDD1 D D D D D D D S U U D D D D D D D S U UTDD2 D D S U U S D U D S D U D S D U D S D U 上下リンク通信パターンが不一致2
作業班 資料11-2 を保護できる手法を提案 具体的な運用方法 ��そろえる 選択 た例5ms5msスロット番号012345678910 11 12 13 14 15 16 17 18 ��ターン1約 3.5Gbps約 0.54Gbps3ms3msパターン2約 2.5Gbps約 ��イヤ(上り4レイヤ) を想定3
できる手法を提案 ��同期システムはUとなる(逆はない) �用に対しては生じない 利用)D D D S U U D D D D D D D S U U D D D D非同期事業者2(パターン2を利用)D D D S U U D S U U D D D S U U D S U ��ものと想定4
6GHz全国5G端末間干渉屋外可能Local-5G (200MHz)全国5GLocal-5G(非同期)(100MHz)28.2GHz 28.3GHz5.0GHz4.9GHzLocal-5G (800MHz)全国5G29.1GHz29.5GHz5
�国5G4.7GHz帯4.5GHzLocal-5G スAシナリオ① or �）ローカル5G (4.6-4.8GHz) ��であれば、共用可能全国5G (4.5–4.6GHz)①Bローカル5G (4.8-4.9GHz) �悪条件3GPP ��と判断できる②Cローカル5G (4.6-4.8GHz) �可能ローカル5G (4.8-4.9GHz) �能ローカル5G (4.8-4.9GHz) �ローカル5G (4.6-4.8GHz)①D②Eローカル5G ��6
5G全国5G全国5G27.0GHz(100MHz)シナリオ① or ��ーカル5G G (同一周波数) �ローカル5G (隣接等周波数) GHz 28.3GHzケースA全国5GLocal-5G ��るなど、さらなる検討が必要7
まとめ ��を保護できる、Semi-synchronous TDDを提案した 4.7GHz帯では、Semi-synchronous �る ��講じることで解消できる ��は許容範囲内となる 28GHz帯では、Semi-synchronous � ��講じることで解消できる 要8
Annex: 28GHz帯のTDDパターン 5GMF 0 11 12 13 14 15 16 17 18 ��100MHz約 1.6Gbps約 0.3Gbps0.5ms以下0.5ms以下400MHz約 6.4Gbps約 、及び、下り4レイヤ(上り2レイヤ) を想定9
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