JP6091025B2 - 参照信号の生成および参照信号リソースの割り当ての判断 - Google Patents
参照信号の生成および参照信号リソースの割り当ての判断 Download PDFInfo
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- JP6091025B2 JP6091025B2 JP2015166214A JP2015166214A JP6091025B2 JP 6091025 B2 JP6091025 B2 JP 6091025B2 JP 2015166214 A JP2015166214 A JP 2015166214A JP 2015166214 A JP2015166214 A JP 2015166214A JP 6091025 B2 JP6091025 B2 JP 6091025B2
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- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W84/00—Network topologies
- H04W84/02—Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
- H04W84/10—Small scale networks; Flat hierarchical networks
- H04W84/12—WLAN [Wireless Local Area Networks]
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
- H04W88/02—Terminal devices
- H04W88/06—Terminal devices adapted for operation in multiple networks or having at least two operational modes, e.g. multi-mode terminals
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
- H04W88/08—Access point devices
- H04W88/10—Access point devices adapted for operation in multiple networks, e.g. multi-mode access points
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
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Description
本明細書によれば、以下の各項目に記載の構成もまた開示される。
[項目1]
eNode B(「eNB」)であって、
プロセッサと、
前記プロセッサに連結されたメモリと、
前記プロセッサにより操作されると、ユーザ機器デバイス(UEデバイス)に、前記UEデバイスに固有の参照信号パラメータ値(RSパラメータ値)を送信する制御モジュールとを備え、
前記RSパラメータ値は、前記eNBにより、スクランブル識別子の値とともに利用されると、前記UEデバイスに送信されるユーザ機器固有参照信号(「UE−RS」)を生成して、前記RSパラメータ値および前記スクランブル識別子の値は、前記UEデバイスにより利用されると、前記UE−RSを特定して、前記UEデバイスによる、多入力多出力通信の復調を促す、eNB。
[項目2]
前記制御モジュールは、無線リソース制御(「RRC」)信号伝達を利用して、前記UEデバイスに前記RSパラメータ値を送信する、項目1に記載のeNB。
[項目3]
前記制御モジュールは、ダウンリンク制御情報(「DCI」)を利用して、前記UEデバイスに前記RSパラメータ値を送信する、項目1に記載のeNB。
[項目4]
前記DCIは、DCI 2Cの拡張フォーマットまたはフォーマットDCI 2Dであり、前記RSパラメータ値を示すために3ビットを超えるビットを含む、項目3に記載のeNB。
[項目5]
前記DCIは、UE−RSポート11または13を示すことができ、かつ、0または1のスクランブル符号識別子(「SCID」)の値も示すことができる、項目4に記載のeNB。
[項目6]
前記RSパラメータ値は、マルチビットのチャネル状態情報−参照信号(「CSI−RS」)として含まれる、項目1に記載のeNB。
[項目7]
前記eNBにより、前記UE−RSの生成に利用される初期値cinitは、
[項目8]
前記メモリは、前記制御モジュールを実装するための命令を格納するダイナミックランダムアクセスメモリ(DRAM)を含む、項目1から7のいずれか一項に記載のeNB。
[項目9]
ユーザ機器(「UE」)であって、
プロセッサと、
前記プロセッサに連結されたメモリと、
前記プロセッサにより操作され、前記メモリに優先規則を格納し、前記UEに割り当てられているUE固有参照信号(「UE−RS」)リソースと前記優先規則とに基づいて、別のUEデバイスに割り当てられているUE−RSリソースを判断する制御モジュールとを備える、UE。
[項目10]
判断された前記UE−RSリソースは、前記別のUEデバイスに割り当てられているUE−RSアンテナポートである、項目9に記載のUE。
[項目11]
判断された前記UE−RSリソースは、前記別のUEデバイスに割り当てられているスクランブル符号識別子である、項目10に記載のUE。
[項目12]
前記優先規則は、UE−RSリソース識別子タプルの順序付けされたリストを含む、項目10に記載のUE。
[項目13]
前記UE−RSリソース識別子タプルは、スクランブル符号識別子および/またはUE−RSアンテナポートを含む、項目12に記載のUE。
[項目14]
無線通信インタフェースをさらに備える、項目9に記載のUE。
[項目15]
ディスプレイと、
前記ディスプレイに連結され、前記ディスプレイにグラフィックを描画するグラフィックプロセッサとをさらに備える、項目9から14のいずれか一項に記載のUE。
[項目16]
eNode B(「eNB」)によって、パラメータを利用して、ユーザ機器デバイス(UEデバイス)に固有の参照信号(「UE−RS」)を生成する段階と、
前記eNBによって、無線通信インタフェース経由で、無線リソース制御(「RRC」)信号伝達および/またはダウンリンク制御情報(「DCI」)を利用して、前記UEデバイスに前記パラメータを送信する段階とを備え、
前記UE−RSは、前記UEデバイスにより、前記UEデバイスによる多入力多出力通信の復調を促すために利用される、コンピュータ実装された方法。
[項目17]
前記生成する段階は、
前記パラメータとスクランブル符号識別子とを利用して前記UE−RSを生成する段階を有する、項目16に記載の方法。
[項目18]
前記パラメータはDCIを利用して送信され、
前記DCIは、DCIフォーマット2Cの拡張またはDCIフォーマット2Dであり、3ビットを超えるビットを含む、項目16に記載の方法。
[項目19]
前記パラメータは、0、1、2または3のスクランブル符号識別子(「SCID」)を示すことができる、項目18に記載の方法。
[項目20]
前記パラメータは、UE−RSポート11または13を示すことができ、かつ、0または1のスクランブル符号識別子(「SCID」)も示すことができる、項目18に記載の方法。
[項目21]
前記UEデバイスに前記パラメータを送信する段階は、
前記パラメータを、マルチビットのチャネル状態情報−参照信号(「CSI−RS」)として送信する段階を有する、項目16に記載の方法。
[項目22]
擬似乱数シーケンス発生器を、
本式において、nsは、無線フレームのスロット番号であり、
[項目23]
ユーザ機器デバイス(UEデバイス)であって、
前記UEデバイスに割り当てられているUE固有参照信号(「UE−RS」)リソースと優先規則とに基づいて、同じセルの別のUEデバイスに割り当てられているUE−RSリソースを判断する手段を備える、UEデバイス。
[項目24]
判断された前記UE−RSリソースは、前記セルの前記別のデバイスに割り当てられているUE−RSアンテナポートであり、または、前記セルの前記別のUEデバイスに割り当てられているスクランブル符号識別子(「SCID」)である、項目23に記載のUEデバイス。
[項目25]
前記優先規則は、スクランブル符号識別子およびUE−RSアンテナポートのうち少なくとも1つを含むUE−RSリソース識別子タプルの順序付けされたリストを含む、項目23に記載のUEデバイス。
Claims (22)
- 発展型NodeB(eNB)に、
ユーザ機器(UE)に、UE固有の基準信号(UE−RS)が基づく擬似乱数シーケンスを決定するために、スクランブル識別子の値とともに使用されるUE固有の基準信号パラメータ(RSパラメータ)の指示を送信する手順と、
前記UEに、前記UEに送信された複数のダウンリンク信号の復調を容易にする前記UE−RSを送信する手順と、
を実行させるプログラム。 - 前記複数のダウンリンク信号は、複数の多入力多出力通信(複数のMIMO通信)である、請求項1に記載のプログラム。
- 前記複数のMIMO通信は、複数のマルチユーザMIMO通信である、請求項2に記載のプログラム。
- 無線リソース制御(RRC)シグナリングを用いて前記RSパラメータを送信する手順を、さらに前記eNBに実行させる、請求項1から3のいずれか一項に記載のプログラム。
- ダウンリンク制御情報(DCI)を使用して前記RSパラメータの前記指示を送信する手順をさらに前記eNBに実行させる、請求項1から4のいずれか一項に記載のプログラム。
- 前記UE−RSは、第1UE−RSシーケンスであり、1つのセルにおける前記第1UE−RSシーケンス及び第2UE−RSシーケンスを送信する手順をさらに前記eNBに実行させる、請求項1から5のいずれか一項に記載のプログラム。
- 前記複数のダウンリンク信号は、複数の物理ダウンリンク共有チャネル(PDSCH)送信である、請求項1から6のいずれか一項に記載のプログラム。
- ユーザ機器(UE)であって、
記録された複数の命令を有する1又は複数の非一時的コンピュータ可読媒体と、
前記1又は複数の非一時的コンピュータ可読媒体に連結された1又は複数のプロセッサと、
を備え、前記1又は複数のプロセッサは、前記複数の命令を実行して前記UEに、
発展型NodeB(eNB)から1又は複数の信号を受信させ、
前記1又は複数の信号に基づいて、前記UEに固有の基準信号パラメータ(RSパラメータ)及びスクランブル識別子の値を決定させ、
前記RSパラメータ及び前記スクランブル識別子の値に基づいてUE固有の基準信号(UE−RS)を受信させ、
前記UE−RSの受信に基づいてダウンリンク送信を復調させる、UE。 - 前記1又は複数のプロセッサは、前記複数の命令を実行してさらに前記UEに、
前記RSパラメータ及び前記スクランブル識別子の値に基づいて擬似乱数シーケンスを決定させ、
前記擬似乱数シーケンスに基づいて前記UE−RSを受信させる、請求項8に記載のUE。 - 前記1又は複数のプロセッサは、前記複数の命令を実行してさらに前記UEに、
前記RSパラメータ及び前記スクランブル識別子の値に基づいて、初期値Cinitを決定させ、
前記初期値Cinitに基づいて、前記擬似乱数シーケンスを決定させる、
請求項9に記載のUE。 - 前記1又は複数の信号は、複数の無線リソース制御信号(RRC信号)を含む、請求項8から10のいずれか一項に記載のUE。
- 前記1又は複数のコンピュータ可読媒体は、ダイナミックランダムアクセスメモリを含む、請求項8から11のいずれか一項に記載のUE。
- 前記ダウンリンク送信は、1より大きいランクを有する、請求項8から12のいずれか一項に記載のUE。
- 前記ダウンリンク送信は、リモート無線ヘッドから受信される、請求項8から13のいずれか一項に記載のUE。
- 前記ダウンリンク送信は、前記eNBから受信される、請求項8から14のいずれか一項に記載のUE。
- 前記ダウンリンク送信は、物理ダウンリンク共有チャネル(PDSCH)である、請求項8から15のいずれか一項に記載のUE。
- 前記1又は複数の信号は、ダウンリンク制御情報送信(DCI送信)を含む、請求項8から16のいずれか一項に記載のUE。
- 前記DCI送信は、フォーマット2C又は2D送信である、請求項17に記載のUE。
- eNBを動作する方法であって、
ユーザ機器(UE)に、UE固有の基準信号(UE−RS)が基づく擬似乱数シーケンスを決定するために、スクランブル識別子の値とともに使用されるUE固有の基準信号パラメータ(RSパラメータ)の指示を送信する段階と、
前記UEに、前記UEに送信された複数のダウンリンク信号の復調を容易にする前記UE−RSを送信する段階と、
を備える方法。 - 前記複数のダウンリンク信号は、複数の多入力多出力通信(複数のMIMO通信)である、請求項19に記載の方法。
- 前記RSパラメータの前記指示を送信する段階は、無線リソース制御(RRC)シグナリングを用いて前記RSパラメータを送信する段階を含む、請求項19又は20に記載の方法。
- 前記RSパラメータの前記指示を送信する段階は、ダウンリンク制御情報(DCI)における前記RSパラメータを送信する段階を含む、請求項19から21のいずれか一項に記載の方法。
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