JP6864072B2 - 無線通信システムにおけるd2d通信のための同期化信号送受信方法及びそのための装置 - Google Patents
無線通信システムにおけるd2d通信のための同期化信号送受信方法及びそのための装置 Download PDFInfo
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- JP6864072B2 JP6864072B2 JP2019236844A JP2019236844A JP6864072B2 JP 6864072 B2 JP6864072 B2 JP 6864072B2 JP 2019236844 A JP2019236844 A JP 2019236844A JP 2019236844 A JP2019236844 A JP 2019236844A JP 6864072 B2 JP6864072 B2 JP 6864072B2
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W56/00—Synchronisation arrangements
- H04W56/001—Synchronization between nodes
- H04W56/0015—Synchronization between nodes one node acting as a reference for the others
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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
- H04L27/26035—Maintenance of orthogonality, e.g. for signals exchanged between cells or users, or by using covering codes or sequences
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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
- H04L27/2647—Arrangements specific to the receiver only
- H04L27/2655—Synchronisation arrangements
- H04L27/2689—Link with other circuits, i.e. special connections between synchronisation arrangements and other circuits for achieving synchronisation
- H04L27/2692—Link with other circuits, i.e. special connections between synchronisation arrangements and other circuits for achieving synchronisation with preamble design, i.e. with negotiation of the synchronisation sequence with transmitter or sequence linked to the algorithm used at the receiver
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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
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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
- 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
- H04L5/0051—Allocation of pilot signals, i.e. of signals known to the receiver of dedicated pilots, i.e. pilots destined for a single user or terminal
-
- 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 signalling, i.e. of overhead other than pilot signals
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/70—Services for machine-to-machine communication [M2M] or machine type communication [MTC]
-
- 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
- H04W48/10—Access restriction or access information delivery, e.g. discovery data delivery using broadcasted information
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W56/00—Synchronisation arrangements
- H04W56/001—Synchronization between nodes
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W76/00—Connection management
- H04W76/10—Connection setup
- H04W76/14—Direct-mode setup
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- Computer Networks & Wireless Communication (AREA)
- Computer Security & Cryptography (AREA)
- Mobile Radio Communication Systems (AREA)
Description
本発明による一実施例によれば、サブ周期(Sub period)でPD2DSCHを送信する場合として、反復(repetition)的に同じ信号を再送信し、受信端末がチェース結合(chase combining)を介して信号のエネルギーを累積させるようにすることができる。
本発明によってサブ周期(sub period)でPD2DSCHを送信する他の実施例として、ターボコーディング(turbo coding)或いは畳み込みコーディング(convolution coding)を行い、互いに異なるRV(Redundancy Version)値を使用して、増分リダンダンシ(incremental redundancy、IR)方式を通じて受信端末の受信率を高めることができる。
本発明の一実施例によれば、PD2DSCHで送信されるコンテンツ(contents)のうち1つとして繰り返しカウント(repetition count)が追加されてもよい。例えば、上位層シグナリング(higher layer signaling)などを通じて決定されるか、又は事前に定義された(例えば、前述した方法により)、メイン周期を知っている端末は、PD2DSCHをデコードして、繰り返しカウントフィールド(repetition count filed)値によって、どの時点で次のPD2DSCHを検出するかを知ることができる。
以下では、本発明によってD2D通信(Device to Device communication)をする端末が端末間同期化(synchronization)を行うとき、同期信号のCRCマスク(mask)設定方法について説明する。
以下では、D2D通信のための同期チャネルと関連するDM−RSに対して上述した情報を含む方法をより具体的に説明する。
Claims (12)
- 無線通信システムにおいてUE(user equipment)がD2D(Device-to-Device)通信のための信号を送信する方法であって、
前記UEが、前記D2D通信のための同期情報を伝える物理チャネルのための複数のビットを取得するステップであって、前記複数のビットは、前記D2D通信のための同期識別子に基づいて取得される、ステップと、
前記UEが他のUEに、前記複数のビットに基づく前記物理チャネル、及び、前記物理チャネルに関連するDM−RS(demodulation reference signal)を送信するステップと、を含み、
OCC(Orthogonal Cover Code)は、前記UEによって前記DM−RSに適用され、前記OCCは、前記D2D通信のための前記同期識別子に基づいて決定され、
前記DM−RSのための巡回シフトは、第1の値を8で除算した剰余に基づいて決定され、前期第1の値は、2で割られた前記同期識別子の床関数である、方法。 - 前記DM−RSのための前記OCCは、前記D2D通信のための前記同期識別子の一つの下位ビットに基づいて決定される、請求項1に記載の方法。
- 前記OCCは、前記D2D通信のための前記同期識別子の前記一つの下位ビットのモジュロ2演算によって決定される、請求項2に記載の方法。
- 前記物理チャネルのための前記複数のビットは、前記同期識別子に基づいてスクランブルされる、請求項1に記載の方法。
- 前記物理チャネルは、前記D2D通信のための物理放送チャネルである、請求項1に記載の方法。
- 前記UEが、前記物理チャネルの送信の前に、前記直交符号及び前記巡回シフトに基づいた前記物理チャネルに関連したDM−RSを取得するステップをさらに含む、請求項1に記載の方法。
- 無線通信システムにおいてD2D(Device-to-Device)通信のための信号を送信するUE(user equipment)であって、
RF(radio frequency)ユニットと、
プロセッサと、を含み、
前記プロセッサは、
前記D2D通信のための同期情報を伝える物理チャネルのための複数のビットを取得し、前記複数のビットは、前記D2D通信のための同期識別子に基づいて取得され、
前記複数のビットに基づく前記物理チャネル、及び、前記物理チャネルに関連するDM−RS(demodulation reference signal)を他のUEに送信するように構成され、
OCC(Orthogonal Cover Code)は、前記UEによって前記DM−RSに適用され、前記OCCは、前記D2D通信のための前記同期識別子に基づいて決定され、
前記DM−RSのための巡回シフトは、第1の値を8で除算した剰余に基づいて決定され、前期第1の値は、2で割られた前記同期識別子の床関数である、UE。 - 前記DM−RSのための前記OCCは、前記D2D通信のための前記同期識別子の一つの下位ビットに基づいて決定される、請求項7に記載のUE。
- 前記OCCは、前記D2D通信のための前記同期識別子の前記一つの下位ビットのモジュロ2演算によって決定される、請求項7に記載のUE。
- 前記物理チャネルのための前記複数のビットは、前記同期識別子に基づいてスクランブルされる、請求項7に記載のUE。
- 前記物理チャネルは、前記D2D通信のための物理放送チャネルである、請求項7に記載のUE。
- 前記プロセッサは、前記UEが、前記プロセッサが前記物理チャネルを送信する前に、前記直交符号及び前記巡回シフトに基づいた前記物理チャネルに関連したDM−RSを取得するようにさらに構成される、請求項7に記載のUE。
Applications Claiming Priority (12)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US201461939714P | 2014-02-13 | 2014-02-13 | |
| US61/939,714 | 2014-02-13 | ||
| US201461977598P | 2014-04-09 | 2014-04-09 | |
| US61/977,598 | 2014-04-09 | ||
| US201461990089P | 2014-05-07 | 2014-05-07 | |
| US61/990,089 | 2014-05-07 | ||
| US201462063381P | 2014-10-13 | 2014-10-13 | |
| US62/063,381 | 2014-10-13 | ||
| US201462079553P | 2014-11-14 | 2014-11-14 | |
| US62/079,553 | 2014-11-14 | ||
| US201462081557P | 2014-11-18 | 2014-11-18 | |
| US62/081,557 | 2014-11-18 |
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| JP2019236844A Active JP6864072B2 (ja) | 2014-02-13 | 2019-12-26 | 無線通信システムにおけるd2d通信のための同期化信号送受信方法及びそのための装置 |
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| CN106105070A (zh) | 2016-11-09 |
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| KR20160122147A (ko) | 2016-10-21 |
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| US11570735B2 (en) | 2023-01-31 |
| KR20210066026A (ko) | 2021-06-04 |
| EP3107230B1 (en) | 2020-06-24 |
| SG11201606699XA (en) | 2016-09-29 |
| US20230164717A1 (en) | 2023-05-25 |
| US10420050B2 (en) | 2019-09-17 |
| US12010640B2 (en) | 2024-06-11 |
| EP3107230A1 (en) | 2016-12-21 |
| KR102355626B1 (ko) | 2022-01-26 |
| EP3107230A4 (en) | 2017-09-27 |
| US20240298280A1 (en) | 2024-09-05 |
| US20210266853A1 (en) | 2021-08-26 |
| RU2643351C1 (ru) | 2018-02-01 |
| KR102300047B1 (ko) | 2021-09-08 |
| JP6640727B2 (ja) | 2020-02-05 |
| WO2015122715A1 (ko) | 2015-08-20 |
| CN106105070B (zh) | 2018-09-21 |
| KR102399712B1 (ko) | 2022-05-19 |
| JP2017513271A (ja) | 2017-05-25 |
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