JP2019537879A - 無線通信システムにおいて端末と基地局の間の信号送受信方法及びそれを支援する装置 - Google Patents
無線通信システムにおいて端末と基地局の間の信号送受信方法及びそれを支援する装置 Download PDFInfo
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- H04W56/00—Synchronisation arrangements
- H04W56/001—Synchronization between nodes
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J11/00—Orthogonal multiplex systems, e.g. using WALSH codes
- H04J11/0069—Cell search, i.e. determining cell identity [cell-ID]
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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
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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
- H04B7/0615—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 of weighted versions of same signal
- H04B7/0617—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 of weighted versions of same signal for beam forming
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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
- 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
- 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
- H04L27/26136—Pilot sequence conveying additional information
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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
- H04L27/2647—Arrangements specific to the receiver only
- H04L27/2655—Synchronisation arrangements
- H04L27/2666—Acquisition of further OFDM parameters, e.g. bandwidth, subcarrier spacing, or guard interval length
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W16/00—Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
- H04W16/24—Cell structures
- H04W16/28—Cell structures using beam steering
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W48/00—Access restriction; Network selection; Access point selection
- H04W48/16—Discovering, processing access restriction or access information
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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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- 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
- H04W72/046—Wireless resource allocation based on the type of the allocated resource the resource being in the space domain, e.g. beams
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Abstract
【選択図】図13
Description
である。
のようにナンバリングされ、1つのフレーム内において昇順に
のようにナンバリングされる。この時、1つのスロット内に連続するOFDMのシンボルの数(
)は、循環前置によって以下の表のように決定される。1つのサブフレーム内の開始スロット(
)は、同じサブフレーム内の開始OFDMのシンボル(
)と時間の次元で整列されている(aligned)。以下の表3は一般循環前置(normal cyclic prefix)のためのスロットごと/フレームごと/サブフレームごとのOFDMのシンボルの数を示し、表4は拡張された循環前置(extended cyclic prefix)のためのスロットごと/フレームごと/サブフレームごとのOFDMのシンボルの数を示す。
SSSa(i)=S(f(a,i))、a=1,…,L、i=1,…,N
f(a,i)=mod(a+i−2、L)+1
f(a,i)=mod(L’^(a+i−2)、L’)
Claims (12)
- 無線通信システムにおいて端末が基地局と信号を送受信する方法において、
前記基地局から同期信号/物理放送チャネル(Synchronization Signal/Physical Broadcast Channel;SS/PBCH)ブロックを受信し、
前記SS/PBCHブロックに含まれた物理放送チャネル(Physical Broadcast Channel;PBCH)のための復調参照信号(Demodulation Reference Signal;DM−RS)のシーケンス、又は前記シーケンスと前記PBCHに含まれた情報の組み合わせに基づいて、前記受信されたSS/PBCHブロックのインデックスを決定し、
前記決定されたSS/PBCHブロックのインデックスに基づいて前記基地局と同期化を行うことを含む、端末の信号送受信方法。 - 前記SS/PBCHブロックは、
1次同期信号(Primary Synchronization Signal;PSS)及び2次同期信号(Secondary Synchronization Signal;SSS)をさらに含む、請求項1に記載の端末の信号送受信方法。 - 前記端末は、前記PSS及びSSSに基づいて時間同期及びセル識別子(cell identifier;cell ID)を得ることをさらに含む、請求項2に記載の端末の信号送受信方法。
- 前記DM−RSのシーケンスとしてゴールドシーケンス(Gold Sequence)が用いられる、請求項3に記載の端末の信号送受信方法。
- 前記ゴールドシーケンスは、前記cell ID及び前記同期信号ブロックのインデックスに基づいて決定される初期値を用いる、請求項4に記載の端末の信号送受信方法。
- 前記PBCHの送信時間区間(transmission Time Interval;TTI)は80msである、請求項1に記載の端末の信号送受信方法。
- 無線通信システムにおいて基地局が端末と信号を送受信する方法において、
1つ以上の同期信号/物理放送チャネル(Synchronization Signal/Physical Broadcast Channel;SS/PBCH)ブロックを送信し、
各SS/PBCHブロックに含まれた物理放送チャネル(Physical Broadcast Channel;PBCH)のための復調参照信号(Demodulation Reference Signal;DM−RS)のシーケンス、又は前記シーケンスと前記PBCHに含まれた情報の組み合わせは、各SS/PBCHブロックのインデックスを指示し、
前記1つ以上のSS/PBCHブロックに基づいて前記基地局と同期化を行う端末と信号を送受信することを含む、基地局の信号送受信方法。 - 前記1つ以上のSS/PBCHブロックは互いに独立したビームで送信される、請求項7に記載の基地局の信号送受信方法。
- 前記SS/PBCHブロックは、
1次同期信号(Primary Synchronization Signal;PSS)及び2次同期信号(Secondary Synchronization Signal;SSS)をさらに含む、請求項7に記載の基地局の信号送受信方法。 - 各SS/PBCHブロックに含まれたPBCHのためのDM−RSのシーケンスは、
セル識別子(cell identifier;cell ID)及び各SS/PBCHブロックインデックスに基づくゴールドシーケンス(Gold Sequence)に対応する、請求項9に記載の基地局の信号送受信方法。 - 無線通信システムにおいて基地局と信号を送受信する端末において、
送信部と、
受信部と、
前記送信部及び受信部に連結されて動作するプロセッサを含み、
前記プロセッサは、
前記基地局から同期信号/物理放送チャネル(Synchronization Signal/Physical Broadcast Channel;SS/PBCH)ブロックを受信し、
前記SS/PBCHブロックに含まれた物理放送チャネル(Physical Broadcast Channel;PBCH)のための復調参照信号(Demodulation Reference Signal;DM−RS)のシーケンス、又は前記シーケンスと前記PBCHに含まれた情報の組み合わせに基づいて、前記受信されたSS/PBCHブロックのインデックスを決定し、
前記決定されたSS/PBCHブロックのインデックスに基づいて前記基地局と同期化を行うように構成される、端末。 - 無線通信システムにおいて端末と信号を送受信する基地局において、
送信部と、
受信部と、
前記送信部及び受信部に連結されて動作するプロセッサを含み、
前記プロセッサは、
1つ以上の同期信号/物理放送チャネル(Synchronization Signal/Physical Broadcast Channel;SS/PBCH)ブロックを送信し、
各SS/PBCHブロックに含まれた物理放送チャネル(Physical Broadcast Channel;PBCH)のための復調参照信号(Demodulation Reference Signal;DM−RS)のシーケンス、又は前記シーケンスと前記PBCHに含まれた情報の組み合わせは各SS/PBCHブロックのインデックスを指示し、
前記1つ以上のSS/PBCHブロックに基づいて前記基地局と同期化を行う端末と信号を送受信するように構成される、基地局。
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| US201762455544P | 2017-02-06 | 2017-02-06 | |
| US62/455,544 | 2017-02-06 | ||
| US201762472505P | 2017-03-16 | 2017-03-16 | |
| US62/472,505 | 2017-03-16 | ||
| PCT/KR2018/001576 WO2018143771A1 (ko) | 2017-02-06 | 2018-02-06 | 무선 통신 시스템에서 단말과 기지국간 신호 송수신 방법 및 이를 지원하는 장치 |
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| WO2018143771A1 (ko) | 2018-08-09 |
| EP3402100A1 (en) | 2018-11-14 |
| CN109478943B (zh) | 2020-08-18 |
| US20190200306A1 (en) | 2019-06-27 |
| US11483783B2 (en) | 2022-10-25 |
| CN112039813B (zh) | 2023-05-30 |
| US10757666B2 (en) | 2020-08-25 |
| KR101988325B1 (ko) | 2019-06-12 |
| US20230021436A1 (en) | 2023-01-26 |
| US20200344704A1 (en) | 2020-10-29 |
| US10440672B2 (en) | 2019-10-08 |
| CN112039813A (zh) | 2020-12-04 |
| JP6804641B2 (ja) | 2020-12-23 |
| KR20180101339A (ko) | 2018-09-12 |
| EP3402100A4 (en) | 2019-12-04 |
| CN109478943A (zh) | 2019-03-15 |
| EP3402100B1 (en) | 2021-03-31 |
| US11902921B2 (en) | 2024-02-13 |
| US20200008164A1 (en) | 2020-01-02 |
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