JP2013168984A - 物理ハイブリッド自動再送要求指示チャネル割当方法 - Google Patents
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- H—ELECTRICITY
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- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
- H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
- H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
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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
- H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
- H04L5/0055—Physical resource allocation for ACK/NACK
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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
- H04J—MULTIPLEX COMMUNICATION
- H04J11/00—Orthogonal multiplex systems, e.g. using WALSH codes
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/02—Arrangements for detecting or preventing errors in the information received by diversity reception
- H04L1/04—Arrangements for detecting or preventing errors in the information received by diversity reception using frequency diversity
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
- H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
- H04L1/1607—Details of the supervisory signal
- H04L1/1692—Physical properties of the supervisory signal, e.g. acknowledgement by energy bursts
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
- H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
- H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
- H04L1/1812—Hybrid protocols; Hybrid automatic repeat request [HARQ]
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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
- H04L5/0016—Time-frequency-code
- H04L5/0021—Time-frequency-code in which codes are applied as a frequency-domain sequences, e.g. MC-CDMA
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- H—ELECTRICITY
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- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
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- 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
- H04L5/003—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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- 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
- H04L5/0058—Allocation criteria
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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
- 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
- H04B7/068—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 using space frequency diversity
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Abstract
【解決手段】この物理指示チャネル割当方法は、拡散率にしたがって必要なCDMグループの個数間の比を考慮してCDMグループを割り当て、該割り当てられたCDMグループに物理ハイブリッドARQ指示チャネル(PHICH)を割り当てる過程を含む。ここで、PHICHは、CDM方式で多重化された受信確認(ACK/NACK)信号を含む。したがって、PHICH伝送のためにリソースを效率的に割り当て、かつ、拡散率によらずに伝送構造を維持させることができる。
【選択図】図9
Description
Claims (11)
- 符号分割多重化(CDM)方式により多重化された信号を副搬送波に拡散させる方法であって、
巡回プリフィクスタイプ及び拡散率によってCDMグループを割り当て、
受信確認信号(ACK)を含むPHICHを、前記割り当てられたCDMグループに割り当てる
ことを特徴とする、方法。 - 前記CDMグループを割り当てる段階では、
拡張巡回プリフィクスの場合におけるCDMグループ数が、正常巡回プリフィクスの場合におけるCDMグループ数の2倍となるようにCDMグループを割り当てることを特徴とする、請求項1に記載の方法。 - 前記CDMグループを割り当てる段階では、
拡散率とCDMグループの個数との積が一定の値になるようにCDMグループを割り当てることを特徴とする、請求項1に記載の方法。 - 前記CDMグループを割り当てる段階では、
第1拡散率及び第2拡散率が存在し、前記第1拡散率値がNの時に必要なCDMグループの個数をGNとし、前記第2拡散率値がMの時のCDMグループの個数をGMとする場合、GM=GN*(N/M)を満たすようにCDMグループの個数を決定することを特徴とする、請求項1に記載の方法。 - 前記CDMグループを割り当てる段階では、
第1拡散率及び第2拡散率が存在し、前記第1拡散率値がNの時に必要なCDMグループの個数をGNとし、前記第2拡散率値がMの時のCDMグループの個数をGMとする場合、GM=GN*ceil(N/M)を満たすようにCDMグループの個数を決定することを特徴とする、請求項1に記載の方法。 - 前記PHICHグループを割り当てる段階では、
前記受信確認信号のインデックスにグループインデックスを優先的に割り当てることを特徴とする、請求項1に記載の方法。 - 前記PHICHグループを割り当てる段階は、
ACKまたはNACK信号をIチャネルまたはQチャネルのいずれか一方にのみマッピングすることを含む、請求項1に記載の方法。 - 前記PHICHグループを割り当てる段階は、
NgをACKまたはNACK信号伝送のためのCDMグループ個数とし、iPHICHをACKまたはNACK信号のインデックスとする時、各ACK/NACK信号のCDMグループインデックスは、gPHICH=iPHICH mod Ngにより決定し、各グループ内におけるマルチプレクシングのためのCDMコードインデックスは、cPHICH,g =(floor(iPHICH/Ng))により決定することを含む、請求項7に記載の方法。 - 前記PHICHグループを割り当てる段階は、
ACKまたはNACK信号をIチャネル及びQチャネルにマッピングすることを含む、請求項1に記載の方法。 - 前記PHICHグループを割り当てる段階は、
NgをACK/NACK信号伝送のためのCDMグループ個数とし、iPHICHをACK/NACK信号のインデックスとし、SFを拡散率とすれば、各ACK/NACK信号のCDMグループインデックスはgPHICH = iPHICH mod Ngにより決定し、各グループ内におけるマルチプレクシングのためのCDMコードインデックスは、cPHICH,g = (floor(iPHICH/Ng)) mod SFにより決定することを含む、請求項9に記載の方法。 - 前記CDMグループは、物理ハイブリッド自動再送要求指示チャネル(physical hybrid automatic repeat request indicator channel)グループである、請求項1〜10のいずれか1項に記載の方法。
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KR1020080124085A KR100925440B1 (ko) | 2008-01-28 | 2008-12-08 | 물리 하이브리드 arq 지시 채널 할당 방법 |
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JP2013081501A Active JP5540131B2 (ja) | 2008-01-28 | 2013-04-09 | 物理ハイブリッド自動再送要求指示チャネル割当方法 |
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KR (1) | KR100925440B1 (ja) |
CN (3) | CN101790864B (ja) |
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