JP5456138B2 - 端末装置及びランダムアクセス・プリアンブル送信方法 - Google Patents
端末装置及びランダムアクセス・プリアンブル送信方法 Download PDFInfo
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W74/00—Wireless channel access
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J13/00—Code division multiplex systems
- H04J13/16—Code allocation
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/69—Spread spectrum techniques
- H04B1/707—Spread spectrum techniques using direct sequence modulation
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/69—Spread spectrum techniques
- H04B1/707—Spread spectrum techniques using direct sequence modulation
- H04B1/7073—Synchronisation aspects
- H04B1/7083—Cell search, e.g. using a three-step approach
-
- 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
- H04J—MULTIPLEX COMMUNICATION
- H04J13/00—Code division multiplex systems
- H04J13/0007—Code type
- H04J13/0055—ZCZ [zero correlation zone]
- H04J13/0059—CAZAC [constant-amplitude and zero auto-correlation]
- H04J13/0062—Zadoff-Chu
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J13/00—Code division multiplex systems
- H04J13/16—Code allocation
- H04J13/22—Allocation of codes with a zero correlation zone
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L23/00—Apparatus or local circuits for systems other than those covered by groups H04L15/00 - H04L21/00
- H04L23/02—Apparatus or local circuits for systems other than those covered by groups H04L15/00 - H04L21/00 adapted for orthogonal signalling
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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
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
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- H—ELECTRICITY
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- H04W72/00—Local resource management
- H04W72/04—Wireless resource allocation
- H04W72/044—Wireless resource allocation based on the type of the allocated resource
- H04W72/0453—Resources in frequency domain, e.g. a carrier in FDMA
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- H—ELECTRICITY
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- H—ELECTRICITY
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- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W74/00—Wireless channel access
- H04W74/08—Non-scheduled access, e.g. ALOHA
- H04W74/0833—Random access procedures, e.g. with 4-step access
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W74/00—Wireless channel access
- H04W74/08—Non-scheduled access, e.g. ALOHA
- H04W74/0866—Non-scheduled access, e.g. ALOHA using a dedicated channel for access
- H04W74/0875—Non-scheduled access, e.g. ALOHA using a dedicated channel for access with assigned priorities based access
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B2201/00—Indexing scheme relating to details of transmission systems not covered by a single group of H04B3/00 - H04B13/00
- H04B2201/69—Orthogonal indexing scheme relating to spread spectrum techniques in general
- H04B2201/707—Orthogonal indexing scheme relating to spread spectrum techniques in general relating to direct sequence modulation
- H04B2201/70702—Intercell-related aspects
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B2201/00—Indexing scheme relating to details of transmission systems not covered by a single group of H04B3/00 - H04B13/00
- H04B2201/69—Orthogonal indexing scheme relating to spread spectrum techniques in general
- H04B2201/707—Orthogonal indexing scheme relating to spread spectrum techniques in general relating to direct sequence modulation
- H04B2201/70707—Efficiency-related aspects
- H04B2201/70713—Reducing computational requirements
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
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- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/04—Wireless resource allocation
- H04W72/044—Wireless resource allocation based on the type of the allocated resource
- H04W72/0446—Resources in time domain, e.g. slots or frames
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- Computer Networks & Wireless Communication (AREA)
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- Mobile Radio Communication Systems (AREA)
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- Data Exchanges In Wide-Area Networks (AREA)
Description
まず、Zadoff-Chu系列について式を用いて示す。系列長NのZadoff-Chu系列は、Nが偶数の場合、式(3)によって表され、Nが奇数の場合、式(4)によって表される。
実施の形態1では、プリアンブル系列の生成及び検出を時間領域において行う場合について説明したが、本発明の実施の形態2では、プリアンブル系列の生成及び検出を周波数領域において行う場合について説明する。
本発明の実施の形態3では、プリアンブル系列を時間領域において生成し、プリアンブル系列の検出を周波数領域において行う場合について説明する。
52 系列割当部
53 通知部
100−1〜100−M BS
101 報知チャネル処理部
102 報知チャネル生成部
103、106、164 符号化部
104、107、165 変調部
105 DLデータ送信処理部
108、166 多重部
109、167 送信RF部
110、151 アンテナ
111、152 受信RF部
112、153 分離部
113 プリアンブル系列テーブル記憶部
114 プリアンブル系列検出部
115 ULデータ受信処理部
116、155、158 復調部
117、156、159 復号化部
154 DLデータ受信処理部
157 報知チャネル受信処理部
160 報知チャネル処理部
161 プリアンブル系列テーブル記憶部
162 RAバースト生成部
163 ULデータ送信処理部
171,201 ZC系列生成部
172,183−1,183−2 IDFT部
173 CP付加部
181 DFT部
182−1〜182−n 複素乗算部
191−1〜191−4 乗算部
192−1〜192−4 加算部
202 N−point DFT部
Claims (8)
- 請求項1記載の端末装置であって、
前記セル内にて使用可能な系列は、さらに、r=a´の系列(a´≠a及びa´≠1)とr=N―a´の系列とを含むことを特徴とする端末装置。 - 前記Nは素数であることを特徴とする請求項1記載の端末装置。
- 前記選択部は、前記セル内にて使用可能な系列の中から一つの系列をランダムに選択する請求項1記載の端末装置。
- 請求項5記載のランダムアクセス・プリアンブル送信方法であって、
前記セル内にて使用可能な系列は、さらに、r=a´の系列(a´≠a及びa´≠1)とr=N―a´の系列とを含むことを特徴とするランダムアクセス・プリアンブル送信方法。 - 前記Nは素数であることを特徴とする請求項5記載のランダムアクセス・プリアンブル送信方法。
- 前記選択は、前記セル内にて使用可能な系列の中から一つの系列をランダムに選択する請求項5記載のランダムアクセス・プリアンブル送信方法。
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JP2011039429A Active JP5153900B2 (ja) | 2006-09-29 | 2011-02-25 | 基地局装置及び通信方法 |
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JP2016098744A Active JP6190490B2 (ja) | 2006-09-29 | 2016-05-17 | 端末装置、ランダムアクセス・プリアンブル送信方法及び集積回路 |
JP2017150659A Active JP6347877B2 (ja) | 2006-09-29 | 2017-08-03 | 基地局装置、通信方法及び集積回路 |
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JP2017150659A Active JP6347877B2 (ja) | 2006-09-29 | 2017-08-03 | 基地局装置、通信方法及び集積回路 |
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JP2019006952A Active JP6616026B2 (ja) | 2006-09-29 | 2019-01-18 | 基地局装置、通信方法及び集積回路 |
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JP2021018268A Active JP7013600B2 (ja) | 2006-09-29 | 2021-02-08 | 基地局装置、通信方法及び集積回路 |
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US (13) | US8363608B2 (ja) |
EP (1) | EP2068475B1 (ja) |
JP (12) | JP4734419B2 (ja) |
KR (2) | KR101452002B1 (ja) |
CN (4) | CN102932088B (ja) |
BR (1) | BRPI0717659B1 (ja) |
MX (2) | MX2009003264A (ja) |
RU (4) | RU2437221C2 (ja) |
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