JP6406589B2 - 無線通信システムにおける転送信号電力制御及び発見信号資源多重化方法及び装置 - Google Patents
無線通信システムにおける転送信号電力制御及び発見信号資源多重化方法及び装置 Download PDFInfo
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- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/04—TPC
- H04W52/06—TPC algorithms
- H04W52/14—Separate analysis of uplink or downlink
- H04W52/143—Downlink power control
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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
- 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
- H04B7/0619—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 using feedback from receiving side
- H04B7/0621—Feedback content
- H04B7/0626—Channel coefficients, e.g. channel state information [CSI]
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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
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- H04L1/1861—Physical mapping arrangements
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- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/22—Arrangements affording multiple use of the transmission path using time-division multiplexing
- H04L5/26—Arrangements affording multiple use of the transmission path using time-division multiplexing combined with the use of different frequencies
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- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/04—TPC
- H04W52/18—TPC being performed according to specific parameters
- H04W52/24—TPC being performed according to specific parameters using SIR [Signal to Interference Ratio] or other wireless path parameters
- H04W52/242—TPC being performed according to specific parameters using SIR [Signal to Interference Ratio] or other wireless path parameters taking into account path loss
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/04—TPC
- H04W52/18—TPC being performed according to specific parameters
- H04W52/24—TPC being performed according to specific parameters using SIR [Signal to Interference Ratio] or other wireless path parameters
- H04W52/243—TPC being performed according to specific parameters using SIR [Signal to Interference Ratio] or other wireless path parameters taking into account interferences
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- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
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- H04W52/30—TPC using constraints in the total amount of available transmission power
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- H—ELECTRICITY
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- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/04—TPC
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- H04W52/325—Power control of control or pilot channels
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- H04W—WIRELESS COMMUNICATION NETWORKS
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- H04W52/28—TPC being performed according to specific parameters using user profile, e.g. mobile speed, priority or network state, e.g. standby, idle or non transmission
- H04W52/281—TPC being performed according to specific parameters using user profile, e.g. mobile speed, priority or network state, e.g. standby, idle or non transmission taking into account user or data type priority
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- H04W—WIRELESS COMMUNICATION NETWORKS
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- H04W52/04—TPC
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- H04W52/386—TPC being performed in particular situations centralized, e.g. when the radio network controller or equivalent takes part in the power control
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Description
前述したように、基地局に近接して位置したD2D端末は、バンド内の放出電力によるセルラー端末のPUCCH干渉緩和を解決するために、電力制御を通じて低い転送電力で自身の発見信号を送信することができる。しかしながら、前記のような電力制御方法は基地局との位置によって前記のような特定D2D端末に毎発見信号転送毎に転送電力制御を通じて低い転送電力で自身の発見信号を転送するようにすることによって、前記端末の発見信号伝達領域減少によるD2D通信性能低下が発生できる。
前述したように、基地局に近接して位置したD2D端末は、バンド内の放出電力によるセルラー端末のPUCCH干渉緩和を解決するために、電力制御を通じて低い転送電力で自身の発見信号を送信することができる。しかしながら、前記のような電力制御方法は基地局との位置によって前記のような特定D2D端末に毎発見信号転送毎に転送電力制御を通じて低い転送電力で自身の発見信号を転送するようにすることで、前記端末の発見信号伝達領域減少によるD2D通信性能の低下が発生することがある。
前述したように、基地局に近接して位置したD2D端末は、バンド内の放出電力によるセルラー端末のPUCCH干渉緩和を解決するために、端末は電力制御を通じて低い転送電力で自身の発見信号を送信することができる。しかしながら、前記のような電力制御方法は基地局との位置によって前記のような特定D2D端末に毎発見信号転送毎に転送電力制御を通じて低い転送電力で自身の発見信号を転送するようにすることで、前記端末の発見信号伝達領域減少によるD2D通信性能の低下が発生することがある。
前述したように、基地局に近接して位置したD2D端末はバンド内の放出電力によるセルラー端末のPUCCH干渉緩和を解決するために、電力制御を通じて最大転送可能電力より低い転送電力で自身の発見信号を送信することができる。しかしながら、前記のような電力制御方法は基地局との位置によって前記のような特定D2D端末に毎発見信号転送毎に転送電力制御を通じて低い転送電力で自身の発見信号を転送するようにすることで、前記端末のD2D通信性能の低下が発生することがある。
102 セル
103、104、105 端末
106 Dリンク
205 発見区間
1601 送受信部
1602 制御部
1603 基地局関連情報管理部
1701 送受信部
1702 制御部
1703 資源選択部
1704 電力制御部
Claims (8)
- 移動通信システムの端末における信号送受信方法において、
基地局から上位レイヤシグナリングを通じてアップリンク最大転送電力に対する情報を受信するステップと、
前記基地局から端末対端末(device to device;D2D)通信と関連した電力制御情報を含むD2D通信と関連したダウンリンク制御情報を受信するステップと、
前記電力制御情報が第1の値である場合、前記アップリンク最大転送電力に対する情報に基づいて前記D2D通信と関連した転送電力を決定し、前記電力制御情報が第2の値である場合、前記アップリンク最大転送電力に対する情報及び経路損失に基づいて前記D2D通信と関連した転送電力を決定するステップと、
前記決定された転送電力に基づいて前記D2D通信と関連した少なくとも1つの信号を転送するステップと、を含む信号送受信方法。 - 前記基地局から前記D2D通信と関連した少なくとも1つの情報を受信するステップをさらに含むことを特徴とする、請求項1に記載の信号送受信方法。
- 移動通信システムの基地局における信号送受信方法において、
上位レイヤシグナリングを通じてアップリンク最大転送電力に対する情報を端末に転送するステップと、
前記端末に対する端末対端末(device to device;D2D)通信と関連した電力制御情報を含むD2D通信と関連したダウンリンク制御情報を決定するステップと、
前記D2D通信と関連した電力制御情報を含む前記ダウンリンク制御情報を端末に転送するステップと、を含み、
前記電力制御情報が第1の値である場合、前記アップリンク最大転送電力に対する情報に基づいて前記端末のD2D通信と関連した転送電力が決定され、前記電力制御情報が第2の値である場合、前記アップリンク最大転送電力に対する情報及び経路損失に基づいて前記D2D通信と関連した転送電力が決定され、
前記決定された転送電力に基づいて前記D2D通信と関連した少なくとも1つの信号が転送されることを特徴とする、信号送受信方法。 - 前記端末に前記D2D通信と関連した少なくとも1つの情報を転送するステップをさらに含むことを特徴とする、請求項3に記載の信号送受信方法。
- 移動通信システムの端末において、
信号を送受信する送受信部と、
前記送受信部を制御し、上位レイヤシグナリングを通じてアップリンク最大転送電力に対する情報を端末に転送し、基地局から端末対端末(device to device;D2D)通信と関連した電力制御情報を含むD2D通信と関連したダウンリンク制御情報を受信し、前記電力制御情報が第1の値である場合、前記アップリンク最大転送電力に対する情報に基づいて前記D2D通信と関連した転送電力を決定し、 前記電力制御情報が第2の値である場合、前記アップリンク最大転送電力に対する情報及び経路損失に基づいて前記D2D通信と関連した転送電力を決定し、前記決定された転送電力に基づいて前記D2D通信と関連した少なくとも1つの信号を転送する制御部と、を含む端末。 - 前記制御部は、前記基地局から前記D2D通信と関連した少なくとも1つの情報を受信することを特徴とする、請求項5に記載の端末。
- 移動通信システムの基地局において、
信号を送受信する送受信部と、
前記送受信部を制御し、上位レイヤシグナリングを通じてアップリンク最大転送電力に対する情報を端末に転送し、前記端末に対する端末対端末(device to device;D2D)通信と関連した電力制御情報を含むD2D通信と関連したダウンリンク制御情報を決定し、前記D2D通信と関連した電力制御情報を含む前記ダウンリンク制御情報を端末に転送する制御部と、を含み、
前記電力制御情報が第1の値である場合、前記アップリンク最大転送電力に対する情報に基づいて前記端末のD2D通信と関連した転送電力が決定され、前記電力制御情報が第2の値である場合、前記アップリンク最大転送電力に対する情報及び経路損失に基づいて前記D2D通信と関連した転送電力が決定され、
前記決定された転送電力に基づいて前記D2D通信と関連した少なくとも1つの信号が転送されることを特徴とする、基地局。 - 前記制御部は、前記端末に前記D2D通信と関連した少なくとも1つの情報を転送することを特徴とする、請求項7に記載の基地局。
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KR1020130120103A KR102236020B1 (ko) | 2013-10-08 | 2013-10-08 | 무선 통신 시스템의 전송 신호 전력 제어 및 발견 신호 자원 다중화 방법 및 장치 |
KR10-2013-0120103 | 2013-10-08 | ||
PCT/KR2014/009367 WO2015053514A1 (ko) | 2013-10-08 | 2014-10-06 | 무선 통신 시스템의 전송 신호 전력 제어 및 발견 신호 자원 다중화 방법 및 장치 |
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JP2016539538A (ja) | 2016-12-15 |
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AU2014332694A1 (en) | 2016-05-05 |
EP3057367A1 (en) | 2016-08-17 |
EP3637921B1 (en) | 2021-08-04 |
CN111093278B (zh) | 2023-09-19 |
EP3637921A1 (en) | 2020-04-15 |
WO2015053514A1 (ko) | 2015-04-16 |
EP3057367A4 (en) | 2017-05-24 |
CN105637963A (zh) | 2016-06-01 |
KR102236020B1 (ko) | 2021-04-05 |
US10506521B2 (en) | 2019-12-10 |
US11425661B2 (en) | 2022-08-23 |
US20200092821A1 (en) | 2020-03-19 |
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