JP7250794B2 - 無線通信システムにおいてpucch上でアップリンク制御情報を送受信するための方法およびそのための装置 - Google Patents
無線通信システムにおいてpucch上でアップリンク制御情報を送受信するための方法およびそのための装置 Download PDFInfo
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Description
であり、
である。ダウンリンク(downlink)およびアップリンク(uplink)転送は、
の区間を有する無線フレーム(radio frame)で構成される。ここで、無線フレームは、各々、
の区間を有する10個のサブフレーム(subframe)で構成される。
の増加する順に番号が付けられて、無線フレーム内で
の増加する順に番号が付けられる。1つのスロットは、
(個)の連続するOFDMシンボルで構成され、
は、用いられるヌメロロジおよびスロット設定(slot configuration)によって決定される。サブフレームにおいて、スロット
の開始は、同一サブフレームにおけるOFDMシンボル
の開始と時間的に整列(アラインメント)される。
(個)のサブキャリアで構成され、一つのサブフレームが14・2μ(個)のOFDMシンボルで構成されることを例示的に記述するが、これに限定されるものではない。
(個の)サブキャリアで構成される一つまたは複数のリソースグリッドおよび
(個)のOFDMシンボルによって説明される。ここで、
である。上記
は、最大転送帯域幅を示し、これは、ヌメロロジだけでなく、アップリンクとダウンリンクの間でも異なることができる。
およびアンテナポートpに対するリソースグリッドの各要素は、リソース要素(resource element)と呼ばれ、インデックス対
により一意に(固有的に)識別される。ここで
は、周波数領域上のインデックスであり、
は、サブフレーム内におけるシンボルの位置を指す。スロットにおいてリソース要素を指すときは、インデックス対
が使用される。ここで、
である。
およびアンテナポートpに対するリソース要素
は、複素値(complex value)
に該当する。混同(confusion)される危険性がない場合、または、特定のアンテナポートもしくはヌメロロジが特定されていない場合には、インデックスpおよび
は、ドロップ(drop)されることができ、その結果、複素値は、
または
になることができる。
(個の)連続したサブキャリアとして定義される。周波数領域上で、物理リソースブロックは、0から
までの番号が付けられる。このとき、周波数領域上の物理リソースブロック番号(physical resource block number)
とリソース要素
との間の関係は、数式(1)のように与えられる。
までの番号が付けられる。
N_t = N_sym×N_RB×N_SC×Q_m
N_c2 = N_t - N_c1
次に、multiple UCI on long PUCCHをサポートするためのリソースを決定する方法について注意深く見る。
Claims (15)
- 無線通信システムにおいて端末(User Equipment;UE)が物理アップリンク制御チャネル(Physical Uplink Control CHannel;PUCCH)上でアップリンク制御情報(Uplink Control Information;UCI)を送信する方法であって、
前記UCIを送信するための前記PUCCHに関連する制御情報を基地局から受信するステップと、
前記制御情報に基づいて、前記PUCCH上で前記UCIを送信するための全体のレートマッチング出力長に関連する第1値を決定するステップであって、
前記UCIは、第1パート(part)および第2パートを有するチャネル状態情報(Channel State Information;CSI)を有するステップと、
前記PUCCH上で前記CSIの前記第1パートを送信するための第1レートマッチング出力長を決定するステップであって、
前記第1レートマッチング出力長は、(i)前記第1値および(ii)第2値のうちの小さい方の値として決定され、
前記第2値は、第1パラメータを第2パラメータおよび第3パラメータのそれぞれによって割ることに基づいて決定され、
前記第1パラメータは、前記CSIの前記第1パートのサイズに関連し、前記第2パラメータは、前記PUCCHに関する設定された最大符号化率を表し、前記第3パラメータは、前記PUCCHに関する変調次数を表すステップと、
前記UCIの前記CSIの前記第1パートに関する前記第1レートマッチング出力長を用いて、前記UCIを前記PUCCH上で、前記基地局に送信するステップと、を有する、方法。 - 前記制御情報は、(i)前記UCIを送信するための前記PUCCHのシンボル数に関する情報と、(ii)前記PUCCHのリソースブロック(Resource Block、RB)の数に関する情報と、を有する、請求項1に記載の方法。
- 前記UCIは、(i)前記CSIと、(ii)スケジュール要求(Scheduling Request;SR)情報およびハイブリッド自動再送要求確認応答(Hybrid Automatic Repeat request ACKnowledgment;HARQ-ACK)情報の少なくとも一つと、を有する、請求項1に記載の方法。
- 前記CSIの前記第2パートに関する第2レートマッチング出力長を決定するステップをさらに有し、
前記UCIを前記PUCCH上で送信するステップは、前記UCIの前記CSIの前記第2パートに関する前記第2レートマッチング出力長を用いてさらに行われる、請求項1に記載の方法。 - 前記CSIの前記第2パートに関する前記第2レートマッチング出力長は、前記第1値から前記CSIの前記第1パートに関する前記第1レートマッチング出力長を引くことによって取得された値として決定される、請求項7に記載の方法。
- 前記UCIを前記PUCCH上で送信するステップは、
前記PUCCHに関する前記設定された最大符号化率に基づいて、前記UCIを符号化するステップと、
前記符号化されたUCIにレートマッチングを行うステップと、
前記PUCCHに関する前記変調次数に基づいて、前記レートマッチングされた符号化されたUCIに変調を行うステップと、を有する、請求項1に記載の方法。 - 前記UCIを符号化するステップは、
前記UCIの前記CSIの前記第1パートを符号化するステップを有し、
前記符号化されたUCIにレートマッチングを行うステップは、
前記CSIの前記符号化された第1パートにレートマッチングを行って前記CSIの前記第1パートに関する前記第1レートマッチング出力長を生成するステップを有する、請求項9に記載の方法。 - 前記PUCCHに関する前記設定された最大符号化率を表す前記第2パラメータを受信するステップをさらに有する、請求項1に記載の方法。
- 前記CSIは、前記第1パートおよび前記第2パートにおいてCSI優先順位の値に基づいて配置される、請求項1に記載の方法。
- 無線通信システムにおいて物理アップリンク制御チャネル(Physical Uplink Control CHannel;PUCCH)上でアップリンク制御情報(Uplink Control Information;UCI)を送信するよう構成された端末(User Equipment;UE)であって、
無線信号を送受信するよう構成された送受信器と、
前記送受信器と機能的に接続されている少なくとも一つのプロセッサと、
前記少なくとも一つのプロセッサと動作可能に接続可能であり、前記少なくとも一つのプロセッサによって実行されることに基づいて動作を行う指示を記憶する少なくとも一つのコンピュータメモリと、を有し、
前記動作は、
前記UCIを送信するための前記PUCCHに関連する制御情報を基地局から受信することと、
前記制御情報に基づいて、前記PUCCH上で前記UCIを送信するための全体のレートマッチング出力長に関連する第1値を決定することであって、
前記UCIは、第1パート(part)および第2パート(part)を有するチャネル状態情報(Channel State Information;CSI)を有することと、
前記PUCCH上で前記CSIの前記第1パートを送信するための第1レートマッチング出力長を決定することであって、
前記第1レートマッチング出力長は、(i)前記第1値および(ii)第2値のうちの小さい方の値として決定され、
前記第2値は、第1パラメータを第2パラメータおよび第3パラメータのそれぞれによって割ることに基づいて決定され、
前記第1パラメータは、前記CSIの前記第1パートのサイズに関連し、前記第2パラメータは、前記PUCCHに関する設定された最大符号化率を表し、前記第3パラメータは、前記PUCCHに関する変調次数を表すことと、
前記UCIの前記CSIの前記第1パートに関する前記第1レートマッチング出力長を用いて、前記UCIを前記PUCCH上で、前記基地局に送信することと、を有する、端末。
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