JP7141447B2 - 中継器及びその動作方法 - Google Patents
中継器及びその動作方法 Download PDFInfo
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- JP7141447B2 JP7141447B2 JP2020512842A JP2020512842A JP7141447B2 JP 7141447 B2 JP7141447 B2 JP 7141447B2 JP 2020512842 A JP2020512842 A JP 2020512842A JP 2020512842 A JP2020512842 A JP 2020512842A JP 7141447 B2 JP7141447 B2 JP 7141447B2
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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
- 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
- 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
- H04J11/00—Orthogonal multiplex systems, e.g. using WALSH codes
- H04J11/0069—Cell search, i.e. determining cell identity [cell-ID]
- H04J11/0073—Acquisition of primary synchronisation channel, e.g. detection of cell-ID within cell-ID group
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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]
- H04J11/0076—Acquisition of secondary synchronisation channel, e.g. detection of cell-ID group
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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
- H04L27/2668—Details of algorithms
- H04L27/2673—Details of algorithms characterised by synchronisation parameters
- H04L27/2675—Pilot or known symbols
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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
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W56/00—Synchronisation arrangements
- H04W56/001—Synchronization between nodes
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W56/00—Synchronisation arrangements
- H04W56/001—Synchronization between nodes
- H04W56/0025—Synchronization between nodes synchronizing potentially movable access points
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/04—Wireless resource allocation
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J11/00—Orthogonal multiplex systems, e.g. using WALSH codes
- H04J2011/0096—Network synchronisation
-
- 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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Description
Claims (9)
- それぞれが相異なる周波数区間に属する複数の同期信号ブロックを含む通信信号を受信する段階と、
周波数区間別の信号のパワーに基づいて、前記複数の同期信号ブロックを検出する周波数区間の優先順位を定める段階と、
定められた優先順位によって、前記周波数区間別内の任意の位置に存在する同期信号ブロックを検出する段階と、
前記同期信号ブロックが、第1の周波数区間において検出されるときに、前記検出された同期信号ブロックを使用して同期を検出し、かつ前記第1の周波数区間の次の優先順位を有する第2の周波数区間において前記同期信号ブロックを検出しない段階と、を含むことを特徴とする中継器の同期検出方法。 - 前記複数の同期信号ブロックそれぞれは、
PSS(Primary Synchronization Signal)、SSS(Secondary Synchronization Signal)、及びPBCH(Physical Broadcast Channel)を含むことを特徴とする請求項1に記載の中継器の同期検出方法。 - 前記中継器の同期検出方法は、
検出された前記同期を用いて、前記中継器内でアップリンク通信とダウンリンク通信とをスイッチングするためのスイッチング信号を生成する段階をさらに含むことを特徴とする請求項1に記載の中継器の同期検出方法。 - 前記同期信号ブロックを検出する周波数区間の優先順位を定める段階は、
前記通信信号を周波数ドメインに変換し、周波数ドメインに変換された通信信号の周波数区間別の信号のパワーを検出する段階を含むことを特徴とする請求項1に記載の中継器の同期検出方法。 - 前記同期信号ブロックを検出する周波数区間の優先順位を定める段階は、
前記周波数区間別の信号のパワーに基づいて、信号のパワーの大きい周波数区間を高い優先順位として定めることを特徴とする請求項1に記載の中継器の同期検出方法。 - それぞれが相異なる周波数区間に属する複数の同期信号ブロックを含む通信信号を受信し、受信した通信信号を周波数ドメインに変換するドメイン変換回路と、
周波数ドメインに変換された前記通信信号の周波数区間別の信号のパワーを測定するパワーディテクタと、
測定された周波数区間別の信号のパワーに基づいて、前記複数の同期信号ブロックを検出する周波数区間の優先順位を定め、定められた優先順位によって前記周波数区間別内の任意の位置に存在する同期信号ブロックを検出する同期検出器と、を備え、
前記同期信号ブロックが、第1の周波数区間において検出されるときに、前記同期検出器は、前記検出された同期信号ブロックを使用して同期を検出し、かつ前記第1の周波数区間の次の優先順位を有する第2の周波数区間において前記同期信号ブロックを検出しないことを特徴とする中継器。 - 前記中継器は、
それぞれがアップリンク通信とダウンリンク通信とをスイッチングするための複数のアップリンク/ダウンリンク・スイッチをさらに備えることを特徴とする請求項6に記載の中継器。 - 前記中継器は、
検出された前記同期信号ブロックを用いて、前記複数のアップリンク/ダウンリンク・スイッチをスイッチングするためのスイッチング信号を生成するスイッチング信号生成器をさらに備えることを特徴とする請求項7に記載の中継器。 - 前記同期信号ブロックは、
PSS(Primary Synchronization Signal)、SSS(Secondary Synchronization Signal)、及びPBCH(Physical Broadcast Channel)を含むことを特徴とする請求項8に記載の中継器。
Applications Claiming Priority (5)
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KR10-2018-0078008 | 2018-07-05 | ||
KR20180078008 | 2018-07-05 | ||
KR1020190080625A KR102499126B1 (ko) | 2018-07-05 | 2019-07-04 | 중계기 및 이의 동작 방법 |
KR10-2019-0080625 | 2019-07-04 | ||
PCT/KR2019/008305 WO2020009540A1 (ko) | 2018-07-05 | 2019-07-05 | 중계기 및 이의 동작 방법 |
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US20220053433A1 (en) * | 2020-08-14 | 2022-02-17 | Qualcomm Incorporated | Information for wireless communication repeater device |
US20220077922A1 (en) * | 2020-09-09 | 2022-03-10 | Qualcomm Incorporated | Synchronization signal block forwarding |
KR102387559B1 (ko) * | 2020-11-03 | 2022-04-18 | 주식회사 티제이이노베이션 | 대역폭 가변 td-lte ics 중계 장치 및 방법 |
US11804892B2 (en) | 2021-10-07 | 2023-10-31 | Tj Innovation Co., Ltd. | Distributed antenna system with hybrid signal sources |
CN114124119B (zh) * | 2021-11-26 | 2022-12-27 | 京信网络系统股份有限公司 | 多频系统增益自适应方法、装置、电子设备和存储介质 |
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- 2019-07-05 EP EP19829911.7A patent/EP3651388A4/en active Pending
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US11240087B2 (en) | 2022-02-01 |
KR102499126B1 (ko) | 2023-02-14 |
KR20200005473A (ko) | 2020-01-15 |
JP2020532915A (ja) | 2020-11-12 |
EP3651388A4 (en) | 2021-05-05 |
US20200177432A1 (en) | 2020-06-04 |
EP3651388A1 (en) | 2020-05-13 |
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