JP2016510556A - 無線通信システムにおいて端末間直接通信のためのディスカバリ信号の送信電力制御方法及びそのための装置 - Google Patents
無線通信システムにおいて端末間直接通信のためのディスカバリ信号の送信電力制御方法及びそのための装置 Download PDFInfo
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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
- H04W52/38—TPC being performed in particular situations
- H04W52/383—TPC being performed in particular situations power control in peer-to-peer links
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- 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]
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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
- H04W52/242—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
- H04W8/00—Network data management
- H04W8/005—Discovery of network devices, e.g. terminals
-
- 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
- H04W52/30—TPC using constraints in the total amount of available transmission power
- H04W52/36—TPC using constraints in the total amount of available transmission power with a discrete range or set of values, e.g. step size, ramping or offsets
- H04W52/367—Power values between minimum and maximum limits, e.g. dynamic range
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
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Abstract
Description
Claims (12)
- 無線通信システムにおいて端末が端末間直接通信のためのディスカバリ(Discovery)信号を送信する方法であって、
一つ以上の下りリンク信号を受信するステップと、
前記一つ以上の下りリンク信号の基準受信電力によって、前記ディスカバリ信号を送信するための送信電力を決定するステップと、
前記決定された送信電力によって、前記ディスカバリ信号を送信するステップと、
を有し、
前記送信電力は、前記基準受信電力が増加するにつれて減少する、ディスカバリ信号送信方法。 - 前記送信電力は、第1値の受信電力未満では、前記基準受信電力が増加するにつれて減少し、前記第1値の受信電力以上では、前記基準受信電力が増加するにつれて増加する、請求項1に記載のディスカバリ信号送信方法。
- 前記基準受信電力が前記第1値よりも小さい第2値の受信電力未満である場合、前記送信電力が一定の値を維持する、請求項2に記載のディスカバリ信号送信方法。
- 前記決定された送信電力が端末の最小送信電力未満である場合、前記送信電力は前記最小送信電力と再決定される、請求項1に記載のディスカバリ信号送信方法。
- 前記送信電力を決定するステップは、
前記一つ以上の下りリンク信号の受信電力の平均値、最小値及び最大値のいずれか一つの値を前記基準受信電力と決定するステップを有する、請求項1に記載のディスカバリ信号送信方法。 - 前記第1値の受信電力以上で前記送信電力は、あらかじめ設定された送信電力以下に制限される、請求項2に記載のディスカバリ信号送信方法。
- 無線通信システムにおいて端末間直接通信を行う端末装置であって、
基地局又は前記端末間直接通信における相手の端末装置と信号を送受信する無線通信モジュールと、
前記信号を処理するプロセッサと、
を備え、
前記プロセッサは、
一つ以上の下りリンク信号の基準受信電力によって、前記ディスカバリ信号を送信するための送信電力を決定し、前記決定された送信電力によって、前記ディスカバリ信号を送信するように前記無線通信モジュールを制御し、
前記プロセッサは、
前記基準受信電力が増加するにつれて前記送信電力を減少させる、端末装置。 - 前記プロセッサは、第1値の受信電力未満では、前記基準受信電力が増加するにつれて前記送信電力を減少させ、前記第1値の受信電力以上では、前記基準受信電力が増加するにつれて前記送信電力を増加させる、請求項7に記載の端末装置。
- 前記プロセッサは、前記基準受信電力が前記第1値よりも小さい第2値の受信電力未満である場合、前記送信電力を一定の値に維持させる、請求項8に記載の端末装置。
- 前記プロセッサは、前記決定された送信電力が端末の最小送信電力未満である場合、前記送信電力を前記最小送信電力と再決定する、請求項7に記載の端末装置。
- 前記プロセッサは、前記一つ以上の下りリンク信号の受信電力の平均値、最小値及び最大値のいずれか一つの値を前記基準受信電力と決定する、請求項7に記載の端末装置。
- 前記プロセッサは、前記送信電力を、前記第1値の受信電力以上で、あらかじめ設定された送信電力以下に制限する、請求項8に記載の端末装置。
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US201361756447P | 2013-01-24 | 2013-01-24 | |
US61/756,447 | 2013-01-24 | ||
PCT/KR2014/000616 WO2014116020A1 (ko) | 2013-01-24 | 2014-01-22 | 무선 통신 시스템에서 단말 간 직접 통신을 위한 디스커버리 신호의 송신 전력 제어 방법 및 이를 위한 장치 |
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JP2016174312A Division JP6268246B2 (ja) | 2013-01-24 | 2016-09-07 | 無線通信システムにおいて端末間直接通信のためのディスカバリ信号の送信電力制御方法及びそのための装置 |
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EP (1) | EP2950595B1 (ja) |
JP (2) | JP6006436B2 (ja) |
CN (1) | CN104956740B (ja) |
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JP2001044932A (ja) * | 1999-06-23 | 2001-02-16 | Sony Internatl Europ Gmbh | ネットワーク装置及び送信電力制御方法 |
JP2013509659A (ja) * | 2009-10-30 | 2013-03-14 | クゥアルコム・インコーポレイテッド | マルチ・ユーザ・ダイバーシティを用いたピア・トゥ・ピア・ネットワーク発見のための方法およびシステム |
JP2013522965A (ja) * | 2010-03-09 | 2013-06-13 | インターデイジタル パテント ホールディングス インコーポレイテッド | 機器対機器通信をサポートするための方法および装置 |
WO2013002206A1 (ja) * | 2011-06-27 | 2013-01-03 | 株式会社エヌ・ティ・ティ・ドコモ | 無線通信方法、無線通信システム及び移動局 |
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EP2950595A4 (en) | 2016-09-14 |
EP2950595A1 (en) | 2015-12-02 |
EP2950595B1 (en) | 2019-07-31 |
CN104956740A (zh) | 2015-09-30 |
WO2014116020A1 (ko) | 2014-07-31 |
JP6006436B2 (ja) | 2016-10-12 |
CN104956740B (zh) | 2019-03-29 |
US9807710B2 (en) | 2017-10-31 |
JP2017005753A (ja) | 2017-01-05 |
US20150327189A1 (en) | 2015-11-12 |
JP6268246B2 (ja) | 2018-01-24 |
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