JP5784152B2 - 拡張された制御チャネルのシステムおよび方法 - Google Patents
拡張された制御チャネルのシステムおよび方法 Download PDFInfo
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
- H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/0001—Arrangements for dividing the transmission path
- H04L5/0003—Two-dimensional division
- H04L5/0005—Time-frequency
- H04L5/0007—Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT
- H04L5/001—Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT the frequencies being arranged in component carriers
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/0091—Signaling for the administration of the divided path
- H04L5/0092—Indication of how the channel is divided
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/0091—Signaling for the administration of the divided path
- H04L5/0094—Indication of how sub-channels of the path are allocated
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/20—Control channels or signalling for resource management
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L25/00—Baseband systems
- H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
- H04L25/0202—Channel estimation
- H04L25/0224—Channel estimation using sounding signals
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
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Description
関連出願の相互参照
本願は、その内容がこれによって参照によって本明細書に組み込まれる、2011年2月11日に出願した米国特許仮出願第61/441,846号、2011年8月12日に出願した米国特許仮出願第61/523,043号、2011年9月30日に出願した米国特許仮出願第61/541,188号、2011年11月4日に出願した米国特許仮出願第61/556,088号、および2012年1月27日に出願した米国特許仮出願第61/591,531号の利益を主張するものである。
p=7+(r+NID) mod 4 式(1)
と定義することができる。式(1)の利用は、4つの可能なアンテナポートの間でのサイクルをもたらすことができる。一例では、NIDは、セルアイデンティティまたは別のパラメータに対応することができる。たとえば、NIDは、専用の形で提供できる送信ポイントアイデンティティに対応することができる。一例では、PRB対が、4つの異なるCCE/E−CCEに対応するシンボルを含み、各E−CCEが、PRB対のREの1/4を占める場合に、4つまでの異なるアンテナポートを使用して、4つのCCE/E−CCEのそれぞれに対応するシンボルを復号することができる。
p=7+NID mod 2 式(2)
p=8−NID mod 2 式(3)
式(2)および(3)は、例示のために含まれ、送信のタイムスロットに基づいて適当なアンテナポートを判定するのに使用できる実際の関数は、変化する可能性がある。
s=ns mod 2 式(8)
値
Nshift=Ncell,id mod P 式(10)
と定義することができる。
Msubgroups=(Msymb/m) 式(12)
ここで、mは、E−REGあたりのREの個数とすることができる。あるサブグループのシンボルz(p)(i)を、
z(p)(i)=〈y(p)(m・i),y(p)(m・i+1),…,y(p)(m・i+m−1)〉 式(13)
と表すことができ、ここで、pは、アンテナポートインデックスとすることができ、iは、サブグループインデックスとすることができ、y(p)(n)は、グループの第nのシンボルとすることができる。一例では、REへの特定のE−REGのマッピングを、サブグループ定義に基づいて実行することができる。
w(p)(i)=z(p)(Π(i)) 式(14)
ここで、Π(i)は、インターリーブされたシーケンスを表すことができ、したがって、単一のCCEからE−PDCCH領域内の隣接しないREGへのサブグループのマッピングが可能になる。
w’(p)(i)=w(p)((i+NID) mod Msubgroups) 式(15)
ここで、NIDは、物理セルアイデンティティまたは別のパラメータ(たとえば、送信ポイントアイデンティティ)などのアイデンティティに対応することができる。マッピング方法のうちの1つまたは複数を、おそらくは同一のサブフレーム内でさえ、使用することができる。WTRUは、どの方法が使用されるのかを、1つまたは複数の判断基準または方法に基づいて判定することができる。たとえば、WTRUは、より上位の層のシグナリング(たとえば、RRCまたはMAC)に基づいて、マッピング方法を判定することができる。WTRUは、たとえばサポートするPDCCHからの、動的表示に基づいてマッピング方法を判定することができる。WTRUは、動作のE−PDCCHモードに基づいてマッピング方法を暗黙のうちに判定することができる。動作のE−PDCCHモードを、より上位の層によってまたは動的に(たとえば、サポートするPDCCHから)提供することができる。WTRUは、E−PDCCHが受信されるサブフレームタイミングまたはサブフレームのタイプに基づいてマッピング方法を判定することができる。たとえば、連続するサブグループマッピングを、MBSFNサブフレーム内で使用することができる。WTRUは、たとえば複数のE−PDCCH領域がサブフレーム内で定義される場合に、E−PDCCH領域の位置および/またはアイデンティティに基づいてマッピング方法を判定することができる。
y(p)(i)=d(i), p=p0(i)について 式(17)
y(p)(i)=0, p≠p0(i)について 式(18)
と定義することができ、ここで、p0(i)とシンボルインデックスiとの間の関係(たとえば、関数d(i))は、アンテナポートのセットの判定に使用される方法に依存するものとすることができる。特定の層マッピング方法について異なる式を定義することができ、たとえば、
y(p)(i)=d(n*i+k) p=pk(i)について 式(20)
y(p)(i)=0, p≠pk(i)について 式(21)
と定義することができ、ここで、nは、リソース要素あたりの層の個数であり、kは、0とn−1との間の値をとることができる。たとえば、n個のアンテナポート/層のセットとデータシンボルインデックスiとの間に定義される関係があるものとすることができる。n個のアンテナポート/層のセットとデータシンボルインデックスiとの間の関係は、1つまたは複数のRE(たとえば、E−PDCCH送信を含むRE)を送信するのに利用されるアンテナポートのセットの判定に使用される方法に依存するものとすることができる。
c(n)=(x1(n+Nc)+x2(n+Nc)) mod 2 式(24)
x1(n+31)=(x1(n+3)+x1(n)) mod 2 式(25)
x2(n+31)=(x2(n+3)+x2(n+2)+n2(n+1)+x2(n)) mod 2 式(26)
ただし、Nc=1600であり、第1のm系列を、x1(0)=1,x1(n)=0,n=1,2,…,30を用いて初期化することができる。
Claims (25)
- E−PDCCH(enhanced physical downlink control channel)のE−CCE(enhanced control channel element)のアイデンティティに少なくとも部分的に基づいて前記E−PDCCHを送信するために使用されるアンテナポートを判定するステップと、
前記アンテナポートを介して前記E−PDCCHを復号するステップと、
を含むことを特徴とする方法。 - 前記E−PDCCH送信は、局所化された送信であることを特徴とする請求項1に記載の方法。
- 前記E−PDCCH送信は、分散された送信であることを特徴とする請求項1に記載の方法。
- 前記E−CCEは、複数のRE(resource element)を含み、前記アンテナポートは、前記E−CCEのREのアイデンティティに少なくとも部分的に基づいて判定されることを特徴とする請求項1に記載の方法。
- 前記REの前記アイデンティティは、前記E−PDCCH内の前記REの時間における位置であることを特徴とする請求項4に記載の方法。
- 前記REの時間における前記位置は、前記E−PDCCHのタイムスロットであることを特徴とする請求項5に記載の方法。
- 前記REは、前記アンテナポートを介して送信されるシンボルにマッピングされることを特徴とする請求項4に記載の方法。
- 前記REと前記アンテナポートとの間の関係は、事前に構成されることを特徴とする請求項4に記載の方法。
- 前記E−CCEは、複数のE−REG(enhanced resource element group)を含み、前記アンテナポートは、前記E−CCEのE−REGのアイデンティティに少なくとも部分的に基づいて判定されることを特徴とする請求項1に記載の方法。
- 前記E−REGは、前記E−CCEにマッピングされ、前記E−CCEへの前記E−REGの前記マッピングは、事前に構成されることを特徴とする請求項9に記載の方法。
- 前記E−PDCCH送信の動作のモードは、より上位の層のシグナリングに基づいて判定されることを特徴とする請求項1に記載の方法。
- E−PDCCH(enhanced physical downlink control channel)のE−CCE(enhanced control channel element)のアイデンティティに少なくとも部分的に基づいて前記E−PDCCHを送信するために使用されるアンテナポートを判定し、
前記アンテナポートを介して前記E−PDCCHを復号する
ように適合されたプロセッサ
を備えることを特徴とするWTRU(無線送信/受信ユニット)。 - 前記E−PDCCH送信は、局所化された送信であることを特徴とする請求項12に記載のWTRU。
- 前記E−PDCCH送信は、分散された送信であることを特徴とする請求項12に記載のWTRU。
- 前記E−CCEは、複数のRE(resource element)を含み、前記プロセッサは、前記E−CCEのREのアイデンティティに少なくとも部分的に基づいて前記アンテナポートを判定するように適合されたことを特徴とする請求項12に記載のWTRU。
- 前記REの前記アイデンティティは、前記E−PDCCH内の前記REの時間における位置であることを特徴とする請求項15に記載のWTRU。
- 前記REの時間における前記位置は、前記E−PDCCHのタイムスロットであることを特徴とする請求項16に記載のWTRU。
- 前記REは、前記アンテナポートを介して送信されるシンボルにマッピングされることを特徴とする請求項15に記載のWTRU。
- 前記REと前記アンテナポートとの間の関係は、事前に構成されることを特徴とする請求項15に記載のWTRU。
- 前記E−CCEは、複数のE−REG(enhanced resource element group)を含み、前記プロセッサは、前記E−CCEのE−REGのアイデンティティに少なくとも部分的に基づいて前記アンテナポートを判定するように適合されたことを特徴とする請求項12に記載のWTRU。
- 前記E−REGは、前記E−CCEにマッピングされ、前記E−CCEへの前記E−REGの前記マッピングは、事前に構成されることを特徴とする請求項20に記載のWTRU。
- 前記E−PDCCH送信の動作のモードは、より上位の層のシグナリングに基づいて判定されることを特徴とする請求項12に記載のWTRU。
- E−PDCCH(enhanced physical downlink control channel)を送信するのに使用されるアンテナポートを判定するステップであって、前記E−PDCCHのE−CCE(enhanced control channel element)のアイデンティティに従って判定するステップを含む、ステップと、
前記アンテナポートを介して前記E−PDCCHを復号するステップと
を含むことを特徴とする方法。 - 前記E−PDCCH送信は、局所化された送信であることを特徴とする請求項23に記載の方法。
- 前記E−PDCCH送信は、分散された送信であることを特徴とする請求項23に記載の方法。
Applications Claiming Priority (11)
Application Number | Priority Date | Filing Date | Title |
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US201161441846P | 2011-02-11 | 2011-02-11 | |
US61/441,846 | 2011-02-11 | ||
US201161523043P | 2011-08-12 | 2011-08-12 | |
US61/523,043 | 2011-08-12 | ||
US201161541188P | 2011-09-30 | 2011-09-30 | |
US61/541,188 | 2011-09-30 | ||
US201161556088P | 2011-11-04 | 2011-11-04 | |
US61/556,088 | 2011-11-04 | ||
US201261591531P | 2012-01-27 | 2012-01-27 | |
US61/591,531 | 2012-01-27 | ||
PCT/US2012/024657 WO2012109542A1 (en) | 2011-02-11 | 2012-02-10 | Systems and methods for an enhanced control channel |
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EP (3) | EP3113567B1 (ja) |
JP (2) | JP5784152B2 (ja) |
KR (2) | KR101846044B1 (ja) |
CN (4) | CN111726150B (ja) |
BR (1) | BR112013020504B1 (ja) |
DK (1) | DK2919545T3 (ja) |
ES (1) | ES2609076T3 (ja) |
HK (1) | HK1214063A1 (ja) |
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