JP2007520164A - 無線通信システムにおける干渉推定 - Google Patents
無線通信システムにおける干渉推定 Download PDFInfo
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- JP2007520164A JP2007520164A JP2006551399A JP2006551399A JP2007520164A JP 2007520164 A JP2007520164 A JP 2007520164A JP 2006551399 A JP2006551399 A JP 2006551399A JP 2006551399 A JP2006551399 A JP 2006551399A JP 2007520164 A JP2007520164 A JP 2007520164A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L25/00—Baseband systems
- H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
- H04L25/0202—Channel estimation
- H04L25/0204—Channel estimation of multiple channels
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/69—Spread spectrum techniques
- H04B1/713—Spread spectrum techniques using frequency hopping
- H04B1/7143—Arrangements for generation of hop patterns
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/69—Spread spectrum techniques
- H04B1/713—Spread spectrum techniques using frequency hopping
- H04B1/715—Interference-related aspects
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J11/00—Orthogonal multiplex systems, e.g. using WALSH codes
- H04J11/0023—Interference mitigation or co-ordination
-
- 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
- H04L5/0003—Two-dimensional division
- H04L5/0005—Time-frequency
- H04L5/0007—Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT
- H04L5/0012—Hopping in multicarrier systems
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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
-
- 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
- H04W52/44—TPC being performed in particular situations in connection with interruption of transmission
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/69—Spread spectrum techniques
- H04B1/713—Spread spectrum techniques using frequency hopping
- H04B1/715—Interference-related aspects
- H04B2001/7154—Interference-related aspects with means for preventing interference
-
- 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
- H04L5/02—Channels characterised by the type of signal
- H04L5/023—Multiplexing of multicarrier modulation signals
-
- 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
-
- 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
- H04W52/42—TPC being performed in particular situations in systems with time, space, frequency or polarisation diversity
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- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Power Engineering (AREA)
- Mobile Radio Communication Systems (AREA)
- Transmitters (AREA)
Abstract
【選択図】 図3
Description
Claims (18)
- 無線通信システムにおける干渉推定方法であって、
干渉推定値における所望レベルの精度を決定することと、
前記所望レベルの精度を達成するためにサブバンドセット毎に必要なブランク数を決定することとを含む方法。 - 周波数ホッピング(FH)系列に、サブバンドセット毎に必要な数のブランクを挿入することを更に含む請求項1に記載の方法。
- 前記サブバンド毎に必要な数のブランクは、ランダムな手法で前記FH系列に挿入される請求項3に記載の方法。
- 前記FH系列に従って送信することを更に含む請求項3に記載の方法。
- 前記FH系列に従って送信することは、前記ブランクのための送信電力を低減することにより実施される請求項5に記載の方法。
- 前記無線通信システムは、直交周波数分割多重化(OFDM)を利用する請求項6に記載の方法。
- 無線通信システムにおいて干渉を推定することが可能な装置であって、
サブバンドセット毎に必要な数のブランクを含む高速ホッピング(FH)系列を生成するよう動作するコントローラーと、
前記FH系列に従って、複数の送信スパン上で送られる送信のための送信電力を落とすか、又は低減するように動作するユニットとを備えた装置。 - 前記無線通信システムは、直交周波数分割多元接続(OFDMA)システムである請求項8に記載の装置。
- 無線通信システムにおいて干渉を推定することが可能な装置であって、
干渉推定値における所望レベルの精度を決定する手段と、
前記所望レベルの精度を達成するためにサブバンドセット毎に必要なブランク数を決定する手段とを備えた装置。 - 周波数ホッピング(FH)系列にサブバンドセット毎に必要な数のブランクを挿入する手段を更に備えた請求項10の装置。
- 前記FH系列に従って送信する手段を更に備えた請求項11に記載の装置。
- 前記無線通信システムは、直交周波数分割多重化(OFDM)を利用する請求項12に記載の装置。
- 無線通信システム内の送信エンティティによって引き起こされる干渉を推定する方法を具体化するコンピュータ読取可能媒体であて、前記方法は、
干渉推定値における所望レベルの精度を決定することと、
前記所望レベルの精度を達成するために、サブバンドセット毎に必要なブランク数を決定することとを含むコンピュータ読取可能媒体。 - 前記方法は、周波数ホッピング(FH)系列に、サブバンドセット毎に必要な数のブランクを挿入することを更に含む請求項14に記載のコンピュータ読取可能媒体。
- 前記方法は、前記FH系列に従って送信することを更に含む請求項15に記載のコンピュータ読取可能媒体。
- 前記無線通信システムは、直交周波数分割多重化(OFDM)を利用する請求項16に記載のコンピュータ読取可能媒体。
- 無線通信システムにおいて干渉を推定する方法を実行するようにプログラムされたプロセッサであって、前記方法は、
干渉推定値における所望レベルの精度を決定することと、
前記所望レベルの精度を達成するためにサブバンドセット毎に必要なブランク数を決定することとを含むプロセッサ。
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US54031104P | 2004-01-28 | 2004-01-28 | |
US11/022,489 US20050163194A1 (en) | 2004-01-28 | 2004-12-22 | Interference estimation in a wireless communication system |
PCT/US2005/002308 WO2005074155A1 (en) | 2004-01-28 | 2005-01-24 | Interference estimation in a wireless communication system |
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JP2010185047A Division JP2011041286A (ja) | 2004-01-28 | 2010-08-20 | 無線通信システムにおける干渉推定 |
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EP (1) | EP1709747A1 (ja) |
JP (2) | JP2007520164A (ja) |
KR (1) | KR100893811B1 (ja) |
AR (1) | AR047474A1 (ja) |
CA (1) | CA2554413A1 (ja) |
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JP2011160056A (ja) * | 2010-01-29 | 2011-08-18 | Softbank Mobile Corp | 無線通信システム |
JP2012034372A (ja) * | 2011-08-08 | 2012-02-16 | Kyocera Corp | 移動通信システム、基地局装置、移動局装置、および干渉低減方法 |
JP2013102479A (ja) * | 2012-12-26 | 2013-05-23 | Kyocera Corp | 移動通信システム、基地局装置、移動局装置、および通信制御方法 |
Also Published As
Publication number | Publication date |
---|---|
WO2005074155A1 (en) | 2005-08-11 |
EP1709747A1 (en) | 2006-10-11 |
TW200541250A (en) | 2005-12-16 |
CA2554413A1 (en) | 2005-08-11 |
AR047474A1 (es) | 2006-01-18 |
JP2011041286A (ja) | 2011-02-24 |
US20050163194A1 (en) | 2005-07-28 |
KR100893811B1 (ko) | 2009-04-20 |
KR20060116234A (ko) | 2006-11-14 |
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