JP4598038B2 - 移動通信システムのセル間干渉を低減する方法 - Google Patents
移動通信システムのセル間干渉を低減する方法 Download PDFInfo
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- JP4598038B2 JP4598038B2 JP2007223592A JP2007223592A JP4598038B2 JP 4598038 B2 JP4598038 B2 JP 4598038B2 JP 2007223592 A JP2007223592 A JP 2007223592A JP 2007223592 A JP2007223592 A JP 2007223592A JP 4598038 B2 JP4598038 B2 JP 4598038B2
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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
- H04W52/06—TPC algorithms
- H04W52/14—Separate analysis of uplink or downlink
- H04W52/146—Uplink power control
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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
- H04L25/03—Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
- H04L25/03006—Arrangements for removing intersymbol interference
- H04L25/03178—Arrangements involving sequence estimation techniques
- H04L25/03248—Arrangements for operating in conjunction with other apparatus
- H04L25/0328—Arrangements for operating in conjunction with other apparatus with interference cancellation circuitry
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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
- H04L5/14—Two-way operation using the same type of signal, i.e. duplex
-
- 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
- H04W52/244—Interferences in heterogeneous networks, e.g. among macro and femto or pico cells or other sector / system interference [OSI]
-
- 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
- H04W52/245—TPC being performed according to specific parameters using SIR [Signal to Interference Ratio] or other wireless path parameters taking into account received signal strength
-
- 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
- H04W52/246—TPC being performed according to specific parameters using SIR [Signal to Interference Ratio] or other wireless path parameters where the output power of a terminal is based on a path parameter calculated in said terminal
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- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Mobile Radio Communication Systems (AREA)
- Power Engineering (AREA)
Description
421、422 移動通信端末機
910 RFモジュール
920 パイロット信号受信部
930 帯域特性測定部
940 帯域選択部
950 データ送信部
960 制御部
Claims (17)
- 複数の周波数帯域を介してデータを送信する移動通信端末機でアップリンクチャンネル資源を管理する方法において、
隣接セルの移動通信基地局から受信された第1ダウンリンクチャンネル信号の受信電力を前記周波数帯域別に測定する段階と、
前記移動通信端末機のホームセルの移動通信基地局から受信された第2ダウンリンクチャンネル信号の受信電力を前記周波数帯域別に測定する段階と、
前記第1ダウンリンクチャンネル信号の受信電力と前記第2ダウンリンクチャンネル信号の受信電力との比に応じて前記複数の周波数帯域を整列する段階と、
前記整列された順序に応じて前記複数の周波数帯域それぞれのデータ送信のためのアップリンクチャンネル信号の送信電力を決定する段階と、
を含むことを特徴とするアップリンクチャンネル資源の管理方法。 - 前記アップリンクチャンネル信号と前記第1ダウンリンクチャンネル信号は、同一の周波数帯域を介して前記データを送信することを特徴とする請求項1に記載のアップリンクチャンネル資源の管理方法。
- 前記ダウンリンクチャンネル信号は、共通パイロットチャンネル信号であることを特徴とする請求項1に記載のアップリンクチャンネル資源の管理方法。
- 前記ダウンリンクチャンネル信号および前記アップリンクチャンネル信号は、直交波周波数分割多重化方式で前記データを送信することを特徴とする請求項1に記載のアップリンクチャンネル資源の管理方法。
- 前記ダウンリンクチャンネル信号および前記アップリンクチャンネル信号は、時分割複信方式で前記データを送受信することを特徴とする請求項1に記載のアップリンクチャンネル資源の管理方法。
- 移動通信システムにおいて、複数の周波数帯域を介してデータを送信する方法において、
無線チャンネルを介し、移動通信端末機によって隣接セルの移動通信基地局から第1パイロット信号を受信する段階と、
前記第1パイロット信号から前記無線チャンネルの受信電力を測定する段階と、
無線チャンネルを介し、移動通信端末機によって隣接セルの移動通信基地局から第2パイロット信号を受信する段階と、
前記第2パイロット信号から前記無線チャンネルの受信電力を測定する段階と、
前記第1パイロット信号の受信電力と前記第2パイロット信号の受信電力との比に応じて前記複数の周波数帯域を整列する段階と、
前記整列された順序に応じて前記複数の周波数帯域それぞれの送信電力を決定する段階と、
前記移動通信端末機が前記周波数帯域別の送信電力に応じてホームセルの移動通信基地局にデータを送信する段階と、
を含むことを特徴とするデータ送信方法。 - 前記移動通信システムは、直交波周波数分割多重方式の無線システムであることを特徴とする請求項6に記載のデータ送信方法。
- 前記データを送信する段階は、前記周波数帯域をホッピングしながらダイバーシチモードで送信することを特徴とする請求項6に記載のデータ送信方法。
- 前記隣接セルは複数であり、
前記第1および第2パイロット信号を受信する段階は、前記複数の隣接セルそれぞれの基地局から前記第1および第2パイロット信号を受信し、
前記送信電力を決定する段階は、複数の前記第1および第2パイロット信号に対してそれぞれ測定された前記受信電力に基づいて前記送信電力を決定することを特徴とする請求項6に記載のデータ送信方法。 - 請求項1〜9のいずれか一項に記載の方法を実行させるためのプログラムを記録したコンピュータ読み取り可能な記録媒体。
- 移動通信端末機において、
無線チャンネルを介して隣接セルの移動通信基地局から第1パイロット信号を受信するとともに、ホームセルの移動通信基地局から第2パイロット信号を受信するパイロット信号受信部と、
前記第1および第2パイロット信号から、それぞれの前記無線チャンネルの周波数帯域別の受信電力を測定する帯域特性測定部と、
前記第1パイロット信号の受信電力と前記第2パイロット信号の受信電力との比に応じて前記複数の周波数帯域を整列し、整列した順序に応じて前記複数の周波数帯域それぞれの送信電力を決定する送信電力決定部と、
前記周波数帯域別の送信電力に応じてホームセルの移動通信基地局にデータを送信するデータ送信部と、
を含むことを特徴とする移動通信端末機。 - 前記第1および第2パイロット信号は、共通パイロットチャンネル信号であることを特徴とする請求項11に記載の移動通信端末機。
- 複数の周波数帯域を含む無線チャンネルを介してパイロット信号を送信する移動通信基地局と、
隣接セルの前記移動通信基地局から受信した第1パイロット信号および、ホームセルの前記移動通信基地局から受信した第2パイロット信号から、それぞれ前記無線チャンネルの受信電力を測定し、前記第1パイロット信号の受信電力と前記第2パイロット信号の受信電力との比に応じて前記複数の周波数帯域を整列し、整列した順序に応じて前記複数の周波数帯域それぞれの送信電力を決定する移動通信端末機と、
を含むことを特徴とする移動通信システム。 - 前記移動通信システムは、直交波周波数分割多重化方式の無線システムであることを特徴とする請求項13に記載の移動通信システム。
- 前記移動通信システムは、時分割複信方式によって前記移動通信端末機と前記移動通信基地局の間に信号を送受信することを特徴とする請求項13に記載の移動通信システム。
- 前記第1および第2パイロット信号は、共通パイロットチャンネル信号であることを特徴とする請求項13に記載の移動通信システム。
- 前記移動通信端末機は、複数の前記移動通信基地局からそれぞれ受信した複数の前記パイロット信号から前記無線チャンネルの受信電力を測定することを特徴とする請求項13に記載の移動通信システム。
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KR20060082991A KR100753369B1 (ko) | 2006-08-30 | 2006-08-30 | 이동통신 시스템의 셀간 간섭을 저감하는 방법 |
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KR100753369B1 (ko) | 2007-08-30 |
US20120163228A1 (en) | 2012-06-28 |
US20080057996A1 (en) | 2008-03-06 |
US9167534B2 (en) | 2015-10-20 |
TW200818953A (en) | 2008-04-16 |
EP1895678B1 (en) | 2018-07-11 |
CN101137237A (zh) | 2008-03-05 |
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MX2007010612A (es) | 2009-02-04 |
EP1895678A2 (en) | 2008-03-05 |
US8145252B2 (en) | 2012-03-27 |
CN101137237B (zh) | 2011-05-11 |
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