JP2012165436A - 隣接セル測定のための基準信号構造の情報 - Google Patents
隣接セル測定のための基準信号構造の情報 Download PDFInfo
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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
- H04L5/005—Allocation of pilot signals, i.e. of signals known to the receiver of common pilots, i.e. pilots destined for multiple users or terminals
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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
- H04L25/0204—Channel estimation of multiple channels
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/26—Systems using multi-frequency codes
- H04L27/2601—Multicarrier modulation systems
- H04L27/2602—Signal structure
- H04L27/261—Details of reference signals
- H04L27/2613—Structure of the reference 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
- H04L5/0001—Arrangements for dividing the transmission path
- H04L5/0014—Three-dimensional division
- H04L5/0023—Time-frequency-space
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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
- H04W24/00—Supervisory, monitoring or testing arrangements
- H04W24/02—Arrangements for optimising operational condition
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W48/00—Access restriction; Network selection; Access point selection
- H04W48/08—Access restriction or access information delivery, e.g. discovery data delivery
- H04W48/12—Access restriction or access information delivery, e.g. discovery data delivery using downlink control channel
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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
- H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/30—Resource management for broadcast services
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W48/00—Access restriction; Network selection; Access point selection
- H04W48/20—Selecting an access point
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- 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
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Abstract
【解決手段】無線ネットワークの全セルの領域に制限されるMBSFN領域の状況、または、アップリンクおよびダウンリンクの方向の伝送におけるサブフレームの割り当てが異なる異なる領域が存在するTDDモードが適用される状況において、サブフレーム特有の所定のシンボルにより搬送される第1の物理構造を有する第1の基準信号を第1のセル内でブロードキャストし(S1)、隣接セルのサブフレーム特有の構造を表す第2の基準信号構造の表示である情報をブロードキャストする(S2)。
【選択図】図6
Description
・第1の物理構造を有する第1の基準信号をブロードキャストする(S1)。記載されている状況は、第1のセルはMBSFN領域に含まれず、第1の基準信号構造は通常のサブフレームの構造である一例である。
DL ダウンリンク
UL アップリンク
UE ユーザ装置(LTEシステムにおける移動端末の名称)
MBSFN マルチブロードキャスト(複数セルにおける同一情報の同期ブロードキャスト)に対して使用される3GPP特有の用語。幾つかの文献において、単一周波数ネットワーク(SFN)とも称される。
Claims (12)
- サブフレーム特有の所定のシンボルにより搬送される第1の物理構造を有する第1の基準信号を第1のセル内でブロードキャストする方法であって、さらに、
端末が隣接セル測定を実行するために使用される第2の基準信号を搬送するための第2のサブフレーム特有のシンボルの物理構造を示す情報をブロードキャストすることを特徴とする方法。 - 前記第2の物理構造の前記情報は、前記隣接セル測定に何れのサブフレームを使用するかを示す情報を含むことを特徴とする請求項1に記載の方法。
- 前記第2の物理構造の前記情報は、隣接セル測定に各サブフレームの何れのシンボルを使用するかを示す情報を含むことを特徴とする請求項1または2に記載の方法。
- 前記基準信号を搬送している前記シンボルは、サブキャリアの1以上の組および各サブフレーム内のシンボルのシーケンス内の所定の1以上の位置に割り当てられることを特徴とする請求項3に記載の方法。
- 前記隣接セル測定に使用される前記サブフレームは、全ての隣接セルによりダウンリンク伝送に使用されるサブフレームであることを特徴とする請求項2に記載の方法。
- 各サブフレーム内の基準信号を搬送するための前記全ての隣接セルにより使用されるシンボルのみが基準信号測定を目的として通知されることを特徴とする請求項3に記載の方法。
- 前記第2の物理構造は、サブフレーム分類により示されることを特徴とする請求項1に記載の方法。
- 前記第1および第2の基準信号は、それらがブロードキャストされるセルに特有であることを特徴とする請求項1に記載の方法。
- 前記サブフレーム特有のシンボルはOFDMシンボルであることを特徴とする請求項1乃至8の何れか一項に記載の方法。
- 請求項1に記載の方法を実行するのに適した無線基地局。
- サブフレーム特有の所定のシンボルにより搬送される第1の物理構造を有する基準信号を送信している第1のセルにキャンプしている端末に適した方法であって、
基準信号を搬送するための第2の物理構造のブロードキャスト表示を検出するステップ(91)と、
前記第2の物理構造として搬送される隣接セルの基準信号を測定するステップ(92)と、
を含むことを特徴とする方法。 - 請求項11に記載の方法を実行するのに適した移動端末。
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US (6) | US8351319B2 (ja) |
EP (2) | EP3823318A1 (ja) |
JP (2) | JP4972705B2 (ja) |
CN (2) | CN101682881B (ja) |
CA (3) | CA2683476C (ja) |
ES (1) | ES2845903T3 (ja) |
HU (1) | HUE054175T2 (ja) |
MX (1) | MX2009010915A (ja) |
MY (1) | MY153213A (ja) |
NZ (1) | NZ580305A (ja) |
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