JP6935426B2 - 新しい無線ダウンリンク制御チャネル - Google Patents
新しい無線ダウンリンク制御チャネル Download PDFInfo
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- H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
- H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
- H04B7/0613—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission
- H04B7/0615—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal
- H04B7/0617—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal for beam forming
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Description
本願は、米国仮特許出願第62/334,935号(2016年5月11日出願)、米国仮特許出願第62/401,055号(2016年9月28日出願)、米国仮特許出願第62/399,921号(2016年9月26日出願)、および米国仮特許出願第62/416,902号(2016年11月3日出願)に対する優先権の利益を主張し、上記出願の開示は、それらの全体が参照により本明細書に引用される。
「7.5 ユーザプレーン待ち時間[・・・]URLLCに関して、ユーザプレーン待ち時間の標的は、ULに関して0.5ミリ秒、DLに関して0.5ミリ秒となるはずである。さらに、可能である場合、待ち時間はまた、次世代アクセスアーキテクチャ内で使用されることができる無線トランスポート技術として、次世代アクセス技術の使用をサポートするために十分に低くなるはずである。[・・・]注記1:信頼性KPIはまた、関連付けられる信頼性要件を伴う待ち時間値を提供する。上記の値は、平均値と見なされるはずであり、関連付けられる高信頼性要件を有していない。[・・・]eMBBに関して、ユーザプレーン待ち時間の標的は、ULに関しては4ミリ秒、DLに関しては4ミリ秒となるはずである。[・・・]注記2:eMBB値に関して、評価は、効率的な方法でデータパケットの転送に関連付けられる全ての典型的遅延(例えば、リソースが事前配分されないときの適用可能なプロシージャの遅延、平均HARQ再伝送遅延、ネットワークアーキテクチャの影響)を考慮する必要がある。」
ネットワークは、「スライス」され得、各スライスは、特定のユースケースまたはユースケースのセットの通信サービス要件をサポートする論理ネットワーク機能の集合から成る。例えば、3GPPオペレータのネットワークは、重要MTCスライス、大量MTC、およびMBBスライスに分割され得、それによって、例えば、サブスクリプションまたはUEタイプに基づいて、オペレータもしくやユーザの必要性を満たす方法で、選択されたスライスにUEをダイレクトすることが可能である。ネットワークスライシングは主に、コアネットワークのパーティションを標的にする。しかしながら、無線アクセスネットワーク(RAN)は、複数のスライス、またはさらに異なるネットワークスライスのためのリソースの区分化をサポートする具体的機能性を必要とし得る。例えば、3GPP TR 22.891,Feasibility Study on New Services and Markets Technology Enablers (SMARTER),Stage 1,Release 14,V−1.1.0を参照されたい。
動的および的スロットサイズを伴う例示的PSFICHが、図24に示される一方で、それらのPSFICHは、表10で要約される。
Yp,kは、
アンテナ情報要素の例
−− ASN1START
AntennaInfoCommon ::= SEQUENCE {
antennaPortsCount ENUMERATED {an1,an2,an4,spare1}
}
AntennaInfoDedicated ::= SEQUENCE {
transmissionModeList TransmissionModeList OPTIONAL
TransmissionModeList ::= SEQUENCE (size 1・・・maxNumberOfTransmissionMode) of TransmissionMode
TransmissionMode ::= INTEGER (1・・・axNumberOfTransmissionMode) where tm1 corrsponds to transmission mode1,tm2 for transmission mode2,・・・.etc.
codebookSubsetRestriction CHOICE {
n2TxAntenna−tm3 BIT STRING (SIZE (2)),
n4TxAntenna−tm3 BIT STRING (SIZE (4)),
n2TxAntenna−tm4 BIT STRING (SIZE (6)),
n4TxAntenna−tm4 BIT STRING (SIZE (64)),
n2TxAntenna−tm5 BIT STRING (SIZE (4)),
n4TxAntenna−tm5 BIT STRING (SIZE (16)),
n2TxAntenna−tm6 BIT STRING (SIZE (4)),
n4TxAntenna−tm6 BIT STRING (SIZE (16))
} OPTIONAL, −− Cond TM
ue−TransmitAntennaSelection CHOICE{
release NULL,
setup ENUMERATED {closedLoop,openLoop}
}
}
AntennaInfoDedicated−v920 ::= SEQUENCE {
codebookSubsetRestriction−v920 CHOICE {
n2TxAntenna−tm8−r9 BIT STRING (SIZE (6)),
n4TxAntenna−tm8−r9 BIT STRING (SIZE (32))
} OPTIONAL −− Cond TM8
}
AntennaInfoDedicated−r10 ::= SEQUENCE {
transmissionMode−r10 ENUMERATED {
tm1,tm2,tm3,tm4,tm5,tm6,tm7,tm8−v920,
tm9−v1020,tm10−v1130,spare6,spare5,spare4,
spare3,spare2,spare1},
codebookSubsetRestriction−r10 BIT STRING OPTIONAL, −− Cond TMX
ue−TransmitAntennaSelection CHOICE{
release NULL,
setup ENUMERATED {closedLoop,openLoop}
}
}
AntennaInfoDedicated−v10i0::= SEQUENCE {
maxLayersMIMO−r10 ENUMERATED {twoLayers,fourLayers,eightLayers} OPTIONAL −− Need OR
}
AntennaInfoDedicated−v1250 ::= SEQUENCE {
alternativeCodebookEnabledFor4TX−r12 BOOLEAN
}
−− ASN1STOP
NRノードは、MAC CEを使用して、伝送モードをアクティブ化または非アクティブ化し得る。NRノードは、UE無線リンク条件およびチャネル状態情報についてのフィードバックを含む、UEフィードバック(例えば、MACレベルフィードバック)、全体的なネットワーク負荷条件の変動、ならびにネットワークオペレータポリシに基づいて、リアルタイム伝送モードアクティブ化または非アクティブ化決定を実施し得る。NR DCIフォーマット0で定義されるものに類似する情報が、以下で定義されるように、新しいMAC制御要素の中で搬送され得る。
Claims (14)
- プロセッサと、メモリと、通信回路とを備えている装置であって、前記装置は、その通信回路を介してネットワークに接続され、前記装置は、前記装置の前記メモリの中に記憶されたコンピュータ実行可能命令をさらに備え、前記命令は、前記装置の前記プロセッサによって実行されると、
物理スロットフォーマットインジケータチャネルおよび物理制御フォーマットインジケータチャネルを復号し、スロット構造情報および第1のリンクにおける制御領域のサイズを取得することであって、前記スロット構造情報は、スロットの長さ、前記第1のリンクにおける伝送領域に用いられるシンボル数、および第2のリンクにおける伝送領域に用いられるシンボル数、のうち少なくとも一つを含むことと、
前記スロット構造情報および前記第1のリンクにおける制御領域の前記サイズに従って、第1の層検索空間を決定することと、
前記第1の層検索空間内の複数の物理制御チャネル候補を盲目的に復号することと、
前記装置に関連付けられた識別子との第1の合致のために、前記第1の層検索空間内の前記物理制御チャネル候補の各々をチェックすることと、
前記第1の層検索空間の合致する物理制御チャネル候補から第2の層検索空間を決定することと
を含む動作を前記装置に実施させる、装置。 - 前記動作は、
前記第2の層検索空間内で複数の物理制御チャネル候補を盲目的に復号することと、
前記装置に関連付けられた前記識別子との第2の合致のために、前記第2の層検索空間内の前記物理制御チャネル候補の各々をチェックすることと、
前記第2の層検索空間の合致する物理制御チャネル候補から物理制御情報の組を決定することと
をさらに含む、請求項1に記載の装置。 - 前記第1の層検索空間の前記合致する物理制御チャネル候補は、開ループ伝送モードのインジケータを備え、前記物理制御情報の組は、プリコーディングマトリクス情報を備えている、請求項2に記載の装置。
- 前記第1の層検索空間の前記合致する物理制御チャネル候補は、空間多重化伝送モードのインジケータを備え、前記物理制御情報の組は、いくつかの層と、アンテナポートインデックスとを備えている、請求項2に記載の装置。
- 前記第1の層検索空間の前記合致する物理制御チャネル候補は、ビーム形成伝送モードのインジケータを備え、前記物理制御情報の組は、アンテナポートインデックスを備えている、請求項2に記載の装置。
- 前記第2の層検索空間の前記物理制御チャネル候補は、キャリアインジケータ、リソース配分、変調およびコーディングのための方式、新しいデータインジケータ、冗長性インジケータ、ハイブリッド自動反復要求プロセス番号、割り当てインデックス、ならびに伝送電力制御パラメータのうちの1つ以上のものを含む情報を備えている、請求項1に記載の装置。
- 前記第1の層検索空間の前記物理制御チャネル候補は、伝送モードのインジケータを備えている、請求項1に記載の装置。
- 伝送モードは、伝送ダイバーシティ、開ループ伝送、空間多重化、およびビーム形成から成るリストから選択される、請求項6に記載の装置。
- 前記第1の層検索空間は、装置のグループに共通し、前記装置に関連付けられた前記識別子は、グループ識別子である、請求項1に記載の装置。
- 前記装置は、ユーザ機器であり、前記装置の前記識別子は、ユーザ機器IDである、請求項1に記載の装置。
- 前記第1および第2の層検索空間内の前記物理制御チャネル候補の各々を
チェックすることは、周期的冗長コードを算出することを含む、請求項1に記載の装置。 - 前記第2のリンクは、ダウンリンク又はアップリンクである、請求項1に記載の装置。
- 前記第1のリンクは、ダウンリンクであり、前記第2のリンクは、アップリンクである、請求項12に記載の装置。
- プロセッサと、メモリと、通信回路とを備えている装置であって、前記装置は、その通信回路を介してネットワークに接続され、前記装置は、前記装置の前記メモリの中に記憶されたコンピュータ実行可能命令をさらに備え、前記命令は、前記装置の前記プロセッサによって実行されると、
物理スロットフォーマットインジケータチャネルを伝送することであって、前記物理スロットフォーマットインジケータチャネルは、現在のスロットに関連付けられたスロット構造情報を提供する、ことと、
物理制御フォーマットインジケータチャネルを伝送することであって、前記物理制御フォーマットインジケータチャネルは、第1のリンクにおける制御領域のサイズを提供する、ことと
を含む動作を前記装置に実施させ、
前記スロット構造情報は、前記スロットの長さ、前記第1のリンクにおける伝送領域のためのシンボル数、および第2のリンクにおける伝送領域のためのシンボル数のうちの少なくとも1つを備え、
前記スロット構造情報および前記第1のリンクにおける制御領域のサイズは、一又は複数の物理制御チャネルを含む第1および第2の層検索空間を特定するために用いられる、装置。
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EP3455985A1 (en) | 2019-03-20 |
KR20220141916A (ko) | 2022-10-20 |
WO2017197125A1 (en) | 2017-11-16 |
US20230292331A1 (en) | 2023-09-14 |
CN109588057A (zh) | 2019-04-05 |
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CN109588057B (zh) | 2021-09-07 |
US10524244B2 (en) | 2019-12-31 |
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