JP6854756B2 - ワイヤレス通信におけるハイブリッド自動再送/要求(harq)フィードバックの通信 - Google Patents
ワイヤレス通信におけるハイブリッド自動再送/要求(harq)フィードバックの通信 Download PDFInfo
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Description
本特許出願は、それらの全体が参照により本明細書に明確に組み込まれる、2014年11月3日に出願した「PROACTIVE MANAGEMENT OF A HIGH RELIABILITY LOW LATENCY MISSION CRITICAL COMMUNICATION」という名称の仮出願第62/074,551号、2014年11月3日に出願した「HYBRID AUTOMATIC REPEAT/REQUEST (HARQ) FOR HIGH RELIABILITY LOW LATENCY (HRLL) WIRELESS COMMUNICATIONS」という名称の仮出願第62/074,603号、2014年11月3日に出願した「HYBRID AUTOMATIC REPEAT/REQUEST (HARQ) FOR HIGH RELIABILITY LOW LATENCY (HRLL) WIRELESS COMMUNICATIONS」という名称の仮出願第62/074,618号、2014年11月3日に出願した「HYBRID AUTOMATIC REPEAT/REQUEST (HARQ) FOR HIGH RELIABILITY LOW LATENCY (HRLL) WIRELESS COMMUNICATIONS」という名称の仮出願第62/074,627号、および、2015年7月24日に出願した「COMMUNICATING HYBRID AUTOMATIC REPEAT/REQUEST (HARQ) FEEDBACK IN WIRELESS COMMUNICATIONS」という名称の米国特許出願第14/808,855号の優先権を主張するものである。
105 アクセスポイント
110 カバレージエリア
115 ユーザ機器、UE
125 通信リンク
130 コアネットワーク
132 バックホールリンク
134 バックホールリンク
200 アクセスネットワーク
202 セルラー領域、セル
204 マクロeNB、eNB
206、550、902 UE
208 低電力クラスeNB
210 セルラー領域
302 R、セル固有RS、CRS
304 R、UE固有RS、UE-RS
410a、410b、420a、420b リソース要素ブロック
430 物理ランダムアクセスチャネル、PRACH
510、904、952 eNB
600、700、800 構成
516 送信(TX)プロセッサ
518、554 送信機/受信機
518TX、554TX 送信機
518RX、554RX 受信機
520、552、1420 アンテナ
558、574 チャネル推定器
556 受信(RX)プロセッサ
559、575 コントローラ/プロセッサ
560、576 メモリ
562 データシンク
567 データソース
568 TXプロセッサ
570 RXプロセッサ
602 CC、制御チャネルCC、ダウンリンクCC、ダウンリンク制御CC
604 CC、制御チャネルCC、UL CC
606 CC、CC1
608、610、706、708、710、806、808、810 CC
612 マルチキャリア(MC)ユーザダウンリンク許可、第1のMCユーザダウンリンク許可、第1のMCユーザDL許可、第1のMCユーザ許可、第2のMCユーザダウンリンク許可
614、716、814 第1のHARQ送信
616 MCユーザスーパーACK/NACK、第2のMCユーザスーパーACK/NACK、第1のMCユーザスーパーACK/NACK、第1のスーパーACK/NACK、スーパーACK/NACK
618、718、818 第2のHARQ送信
702 CC、制御チャネルCC、FDD DL CC
704 CC、制御チャネルCC、FDD UL CC
712、812 MCスケジューリング要求
714 UL許可修正、第2のUL許可修正、第1のアップリンク許可修正
802 CC、制御チャネルCC、FDD DL CC
804 CC、制御チャネルCC、FDD UL CC
816 UL許可修正、第2のUL許可修正、アップリンク許可修正
900 システム
906、908 通信構成要素
910 リソース許可受信構成要素
912 HARQフィードバック報告構成要素
914 干渉決定構成要素
916 干渉予測構成要素
918 制御チャネル監視構成要素
920 リソース許可生成構成要素
922 HARQフィードバック受信構成要素
924 レート制御ループ構成要素
926 干渉管理構成要素
930 スケジューリング構成要素
950 UE、HRLL/HRML UE
1400 装置
1404 プロセッサ
1406 コンピュータ可読媒体
1410 トランシーバ
1414 処理システム
1424 バス
Claims (13)
- ハイブリッド自動再送/要求(HARQ)フィードバックを送信するための方法であって、
第1のスケジューリング許可に基づいて、複数のリンクのセットを介して、HARQ通信を、基地局から受信するステップと、
前記受信したHARQ通信に関係する1つまたは複数の干渉パラメータを決定するステップであって、前記1つまたは複数の干渉パラメータは、前記複数のリンクのセットのうちの各リンクについての干渉パターンを特定するインデックスであり、前記基地局において前記インデックスに対応するレート制御ループを更新するために使用され、前記干渉パターンは、前記複数のリンクの前記セットのうちの各リンクに対する、1つのHARQ通信に関係する1つまたは複数の干渉物の干渉であり、前記1つまたは複数の干渉物からのパイロット信号または制御チャネルに基づいて検出される、ステップと、
複数の前のHARQ通信に関係する以前の干渉パターンと、前記受信したHARQ通信に関係する干渉パターンとの間の、時間的な干渉相関、および、前記複数の前のHARQ通信にそれぞれ関係する前記以前の干渉パターンの間のスペクトル干渉相関のうちの少なくとも1つに基づいて、次のHARQ通信のための1つまたは複数の予測干渉パラメータを決定するステップであって、複数の前のHARQ通信のうちのある一つのHARQ通信時と別のHARQ通信時で、干渉源が異なる、ステップと、
前記1つまたは複数の干渉パラメータ、および前記1つまたは複数の予測干渉パラメータを含む、前記HARQ通信のためのHARQフィードバックを送信するステップと
を含む方法。 - 前記1つまたは複数の干渉パラメータを決定するステップが、1つまたは複数の干渉パターンを、1つまたは複数のパイロット信号、あるいは1つまたは複数のヌルトーン、あるいはそれらの任意の組合せを検出することに少なくとも部分的に基づいて、検出するステップを含む、請求項1に記載の方法。
- 前記方法が、送信時間間隔における干渉物存在の確率を示すために、前記複数の前のHARQ通信に関係する前記以前の干渉パターンに基づいて、マルコフ連鎖を生成するステップをさらに含み、少なくとも前記複数の前のHARQ通信に関係する以前の干渉パターンと前記HARQ通信に関係する干渉パターンとの間の時間的な干渉相関に基づいて前記1つまたは複数の予測干渉パラメータを決定することが、前記マルコフ連鎖に少なくとも部分的に基づく、請求項1に記載の方法。
- 前記複数のリンクのセットにおける各リンクのための、1つまたは複数の補助肯定応答(ACK)/否定応答(NACK)ビットを含む、前記HARQフィードバックを生成するステップをさらに含む、請求項1に記載の方法。
- 前記HARQフィードバックを生成するステップが、前記複数のリンクのセットにおける各リンクを介した信号の信号対雑音比、前記複数のリンクのセットにおける各リンクを介した復号信号の対数尤度比に基づいて推定されたパケット誤り率、あるいはそれらの任意の組合せに少なくとも部分的に基づいて、前記複数のリンクのセットにおける各リンクのための前記1つまたは複数の補助ACK/NACKビットを決定するステップを含む、請求項4に記載の方法。
- 前記HARQフィードバックを送信するステップの後、前記HARQ通信の第2のインスタンスのための第2のスケジューリング許可を受信するステップをさらに含む、請求項1に記載の方法。
- 前記1つまたは複数の干渉パラメータ、および/あるいは前記1つまたは複数の予測干渉パラメータに基づいて、前記HARQ通信の別のインスタンスのためのスケジューリング要求を送信するステップをさらに含む、請求項1に記載の方法。
- ハイブリッド自動再送/要求(HARQ)フィードバックを送信するための装置であって、
第1のスケジューリング許可に基づいて、複数のリンクのセットを介して、HARQ通信を、基地局から受信するための手段と、
前記受信したHARQ通信に関係する1つまたは複数の干渉パラメータを決定するための手段であって、前記1つまたは複数の干渉パラメータは、前記複数のリンクのセットのうちの各リンクについての干渉パターンを特定するインデックスであり、前記基地局において前記インデックスに対応するレート制御ループを更新するために使用され、前記干渉パターンは、前記複数のリンクの前記セットのうちの各リンクに対する、1つのHARQ通信に関係する1つまたは複数の干渉物の干渉であり、前記1つまたは複数の干渉物からのパイロット信号または制御チャネルに基づいて検出される、手段と、
複数の前のHARQ通信に関係する以前の干渉パターンと、前記受信したHARQ通信に関係する干渉パターンとの間の、時間的な干渉相関、および、前記複数の前のHARQ通信にそれぞれ関係する前記以前の干渉パターンの間のスペクトル干渉相関のうちの少なくとも1つに基づいて、次のHARQ通信のための1つまたは複数の予測干渉パラメータを決定するための手段であって、複数の前のHARQ通信のうちのある一つのHARQ通信時と別のHARQ通信時で、干渉源が異なる、手段と、
前記1つまたは複数の干渉パラメータ、および前記1つまたは複数の予測干渉パラメータを含む、前記HARQ通信のためのHARQフィードバックを送信するための手段と
を備える装置。 - 前記1つまたは複数の干渉パラメータを決定するための前記手段が、1つまたは複数の干渉パターンを、1つまたは複数のパイロット信号、あるいは1つまたは複数のヌルトーン、あるいはそれらの任意の組合せを検出することに少なくとも部分的に基づいて、検出する、請求項8に記載の装置。
- 前記装置が、送信時間間隔における干渉物存在の確率を示すために、前記複数の前のHARQ通信に関係する前記以前の干渉パターンに基づいて、マルコフ連鎖を生成するための手段をさらに備え、少なくとも前記複数の前のHARQ通信に関係する以前の干渉パターンと前記HARQ通信に関係する干渉パターンとの間の時間的な干渉相関に基づいて前記1つまたは複数の予測干渉パラメータを決定することが、前記マルコフ連鎖に少なくとも部分的に基づく、請求項8に記載の装置。
- 前記HARQフィードバックを送信するための手段が、前記複数のリンクのセットにおける各リンクのための、1つまたは複数の補助肯定応答(ACK)/否定応答(NACK)ビットを含む、前記HARQフィードバックをさらに生成する、請求項8に記載の装置。
- 前記HARQフィードバックを送信するための手段が、前記複数のリンクのセットにおける各リンクを介した信号の信号対雑音比、あるいは、前記複数のリンクのセットにおける各リンクを介した復号信号の対数尤度比に基づいて推定されたパケット誤り率に少なくとも部分的に基づいて、前記複数のリンクのセットにおける各リンクのための前記1つまたは複数の補助ACK/NACKビットを決定することに少なくとも部分的によって、前記HARQフィードバックをさらに生成する、請求項11に記載の装置。
- ハイブリッド自動再送/要求(HARQ)フィードバックを送信するためのコンピュータ実行可能コードを備える、コンピュータ可読記憶媒体であって、前記コードが、
第1のスケジューリング許可に基づいて、複数のリンクのセットを介して、HARQ通信を、基地局から受信するためのコードと、
前記受信したHARQ通信に関係する1つまたは複数の干渉パラメータを決定するためのコードであって、前記1つまたは複数の干渉パラメータは、前記複数のリンクのセットのうちの各リンクについての干渉パターンを特定するインデックスであり、前記基地局において前記インデックスに対応するレート制御ループを更新するために使用され、前記干渉パターンは、前記複数のリンクの前記セットのうちの各リンクに対する、1つのHARQ通信に関係する1つまたは複数の干渉物の干渉であり、前記1つまたは複数の干渉物からのパイロット信号または制御チャネルに基づいて検出される、コードと、
複数の前のHARQ通信に関係する以前の干渉パターンと、前記受信したHARQ通信に関係する干渉パターンとの間の、時間的な干渉相関、および、前記複数の前のHARQ通信にそれぞれ関係する前記以前の干渉パターンの間のスペクトル干渉相関のうちの少なくとも1つに基づいて、次のHARQ通信のための1つまたは複数の予測干渉パラメータを決定するためのコードであって、複数の前のHARQ通信のうちのある一つのHARQ通信時と別のHARQ通信時で、干渉源が異なる、コードと、
前記1つまたは複数の干渉パラメータ、および前記1つまたは複数の予測干渉パラメータを含む、前記HARQ通信のためのHARQフィードバックを送信するためのコードと
を備える、コンピュータ可読記憶媒体。
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