JP2023036643A - チャンネル状態情報をマルチプレクシングする方法及び装置 - Google Patents
チャンネル状態情報をマルチプレクシングする方法及び装置 Download PDFInfo
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Abstract
【解決手段】チャンネル状態情報(CSI)をマルチプレクシングするユーザ装置(UE)は、CSI報告のための設定情報を受信する送受信機及び設定情報をデコーディングして設定情報によってCSIを計算するプロセッサを含む。送受信機は、アップリンク(UL)チャンネル上で計算されたCSIを送信する。CSIは、N個のセグメントを含み、一つのスロットで送信され、N>1である。N個のうちの第1セグメントはランクインジケーター(RI)及び少なくとも一つの他のCSIパラメーターを含む。基地局(BS)は、CSI報告のための設定情報を生成するプロセッサを含む。BSは、設定情報をUEに送信し、UEから設定情報によって計算されたCSI報告を受信する送受信機をさらに含む。
【選択図】図9A
Description
・2D:2次元(two-dimensional)
・MIMO:多重入力多重出力(multiple-input multiple-output)
・SU-MIMO:単一ユーザ MIMO(single-user MIMO)
・MU-MIMO:多重ユーザ MIMO(multi-user (MIMO)
・3GPP(登録商標):3世代パートナシッププロジェクト(3rd generation partnership project)
・LTE:long-term evolution
・UE:ユーザ装置(user equipment)
・eNB:evolved Node B又は“eNB”
・BS:基地局(base station)
・DL:ダウンリンク(downlink)
・UL:アップリンク(uplink)
・CRS:セル特定基準信号(cell-specific reference signal(s))
・DMRS:復調基準信号(demodulation reference signal(s))
・SRS:サウンディング基準信号(sounding reference signal(s))
・UE-RS:UE-特定基準信号(UE-specific reference signal(s))
・CSI-RS:チャンネル状態情報基準信号(channel state information reference signals)
・SCID:スクランブルアイデンティティー(scrambling identity)
・MCS:変調及びコーディング方式(modulation and coding scheme)
・RE:リソース要素(resource element)
・CQI:チャンネル品質情報(channel quality information)
・PMI:プリコーディングマトリックスインジケーター(precoding matrix indicator)
・RI:ランクインジケーター(rank indicator)
・MU-CQI:マルチユーザCQI(multi-user CQI)
・CSI:チャンネル状態情報(channel state information)
・CSI-IM:CSI干渉測定(CSI interference measurement)
・CoMP:多地点協力(coordinated multi-point)
・DCI:ダウンリンク制御情報(downlink control information)
・UCI:アップリンク制御情報(uplink control information)
・PDSCH:物理的ダウンリンク共有チャンネル(physical downlink shared channel)
・PDCCH:物理的ダウンリンク制御チャンネル(physical downlink control channel)
・PUSCH:物理的アップリンク共有チャンネル(physical uplink shared channel)
・PUCCH:物理的アップリンク制御チャンネル(physical uplink control channel)
・PRB:物理的リソースブロック(physical resource block)
・RRC:無線リソース制御(radio resource control)
・AoA:到着角度(angle of arrival)
・AoD:出発角度(angle of departure)
特に、報告されたN0,2値は次のオプションのうちの少なくとも一つによってRI値を誘導することに用いられる。(N0,1、N0,2)報告に対するAlt Eを仮定する一つのオプションで、N0,2=2Lであれば、RI=1であり、そうではなければ、
101,102,103 基地局(BS)
111,112,113,114,115,116 ユーザ装置(UE)
120,125 カバレッジ領域
130 IPネットワーク
Claims (1)
- 無線通信システムの端末によって行われる方法において、
基地局から、チャンネル状態情報(CSI:channel state information)報告設定を受信する段階であって、前記CSI報告設定は、広帯域(wideband)報告又は部分帯域(subband)報告されるように設定される少なくとも一つのCSIパラメーターを指示する第1情報と、CSIが報告される部分帯域らのセットを指示する第2情報とを含み、前記少なくとも一つのCSIパラメーターは、前記広帯域報告されるように設定された場合、前記部分帯域らのセット全体についてのCSIパラメーターであり、前記部分帯域報告されるように設定された場合、前記部分帯域らのセットのそれぞれの部分帯域についてのCSIパラメーターである、前記受信する段階と、
前記第1情報及び前記第2情報に基づいて前記部分帯域らのセットに対する第1CSIパート(part)及び第2CSIパートを決定する段階と、
前記基地局に、前記第1CSIパート及び前記第2CSIパートを含む前記CSIを伝送する段階と、を含み、
前記第1CSIパートは、RI(rank indicator)及び第1CQI(channel quality information)を含み、前記第1CQIは、第1コードワード(codeword)に関連し、
前記第2CSIパートのペイロード(payload)サイズは、前記第1CSIパートの前記RIに基づき、
前記第1CSIパート及び前記第2CSIパートは、別途に(separately)エンコーディングされるものである、方法。
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JP2019531950A JP7191827B2 (ja) | 2016-12-16 | 2017-12-14 | チャンネル状態情報をマルチプレクシングする方法及び装置 |
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KR (2) | KR102472227B1 (ja) |
CN (2) | CN115426091B (ja) |
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