JP2007074755A - カバレージセルにわたる干渉を削減するための方法およびシステム - Google Patents
カバレージセルにわたる干渉を削減するための方法およびシステム Download PDFInfo
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- JP2007074755A JP2007074755A JP2006327426A JP2006327426A JP2007074755A JP 2007074755 A JP2007074755 A JP 2007074755A JP 2006327426 A JP2006327426 A JP 2006327426A JP 2006327426 A JP2006327426 A JP 2006327426A JP 2007074755 A JP2007074755 A JP 2007074755A
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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
- H04B1/707—Spread spectrum techniques using direct sequence modulation
- H04B1/7097—Interference-related aspects
- H04B1/7103—Interference-related aspects the interference being multiple access interference
- H04B1/7107—Subtractive interference cancellation
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W24/00—Supervisory, monitoring or testing arrangements
- H04W24/02—Arrangements for optimising operational condition
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/50—Allocation or scheduling criteria for wireless resources
- H04W72/54—Allocation or scheduling criteria for wireless resources based on quality criteria
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B2201/00—Indexing scheme relating to details of transmission systems not covered by a single group of H04B3/00 - H04B13/00
- H04B2201/69—Orthogonal indexing scheme relating to spread spectrum techniques in general
- H04B2201/707—Orthogonal indexing scheme relating to spread spectrum techniques in general relating to direct sequence modulation
- H04B2201/70702—Intercell-related aspects
Abstract
【解決手段】無線デバイスは、そのサービス提供セルおよび隣接するセルのチャネル信号強度を監視する(902)。サービス提供セルは、そのセル内の無線デバイスから測定値を集め(904、906)、無線デバイスのうちの1つが隣接するセルに重大な干渉を発生させている可能性がある場合に、隣接するセルに通知する(910)。隣接するセルはこの情報を集め(912)、これらの干渉無線デバイスのサブセットでマルチユーザ検出および除去アルゴリズムを実行する。
【選択図】図9A
Description
UE−UTRAN無線インタフェース:3GPP TS 25−300シリーズ(リリース1999)
UTRAN lu、lur、lubインタフェース:3GPP TS 25−400シリーズ(リリース1999)
Claims (6)
- 無線通信システムにおいて干渉を削減するための方法であって、
第1のセルによってサービスが提供されている第1の無線デバイスが信号の測定を実行するステップと、
第1の無線デバイスが測定値を第1のセルに伝送するステップと、
第1のセルが測定値を受け取ると、第1の無線デバイスが第2のセルで干渉を発生させている可能性があるかどうかを判定するステップと、
第1の無線デバイスが第2のセルで干渉を発生していると判定された場合には、第1のセルが干渉情報を第2のセルに伝送するステップと、
第2のセルが、第1のセルからの干渉情報を受け取ると、干渉情報に基づいて第1の無線デバイスを復調および除去するステップと
を備えることを特徴とする方法。 - 無線デバイス間での干渉を削減するためのシステムであって、
第1の無線デバイスと、
第1のセルと、
第2のセルとを備え、
第1のセルによってサービスが提供されている第1の無線デバイスが信号の測定を実行し、測定値を第1のセルに伝送し、
第1のセルが測定値を受け取ると、第1の無線デバイスが第2のセルで干渉を発生させている可能性があるかどうかを判定し、第1の無線デバイスが第2のセルで干渉を発生していると判定された場合には、干渉情報を第2のセルに伝送し、
第2のセルが、第1のセルからの干渉情報を受け取ると、干渉情報に基づいて第1の無線デバイスを復調および除去する
ことを特徴とするシステム。 - 無線通信システムにおいて干渉を削減するための方法であって、
サービス提供セルの信号強度を無線デバイスが監視するステップと、
無線デバイスからの情報をサービス提供セルが集めるステップと、
その情報に基づいて、1つまたは複数の無線デバイスが、1つまたは複数の干渉無線デバイスにサービスを提供するサービス提供セルに隣接する1つまたは複数のセル内で、干渉を発生させていることが判定されるステップと、
隣接セルがそのようにする場合は、干渉を除去するために干渉に関する情報を隣接セルに伝送するステップと
を備えることを特徴とする方法。 - 無線デバイス間での干渉を削減するためのシステムであって、
無線デバイスと、
サービス提供セルと、
サービス提供セルに隣接するセルとを備え、
サービス提供セルの信号強度が無線デバイスによって監視され、無線デバイスからの情報がサービス提供セルで集められ、
その情報に基づいて、1つまたは複数の無線デバイスが、1つまたは複数の干渉無線デバイスにサービスを提供するサービス提供セルに隣接する1つまたは複数のセル内で、干渉を発生させていることが判定され、
隣接セルがそのようにする場合は、干渉を除去するために干渉に関する情報が隣接セルに伝送される
ことを特徴とするシステム。 - 無線通信システムにおいて干渉を削減するための方法であって、
無線デバイスが、そのサービス提供セルおよび隣接するセルのチャネル信号強度を監視するステップと、
サービス提供セルが、そのセル内の無線デバイスから測定値を集めするステップと、
無線デバイスのうちの1つが隣接するセルに重大な干渉を発生させている可能性がある場合に、サービス提供セルが、隣接するセルに通知するステップと、
隣接するセルがこの情報を集め、これらの干渉無線デバイスのサブセットでマルチユーザ検出および除去アルゴリズムを実行するステップと
を備えることを特徴とする方法。 - 無線デバイス間での干渉を削減するためのシステムであって、
無線デバイスと、
サービス提供セルと、
隣接するセルとを備え、
無線デバイスが、そのサービス提供セルおよび隣接するセルのチャネル信号強度を監視し、
サービス提供セルが、そのセル内の無線デバイスから測定値を集め、無線デバイスのうちの1つが隣接するセルに重大な干渉を発生させている可能性がある場合に、隣接するセルに通知し、
隣接するセルがこの情報を集め、これらの干渉無線デバイスのサブセットでマルチユーザ検出および除去アルゴリズムを実行する
ることを特徴とするシステム。
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US09/884,637 | 2001-06-19 | ||
US09/884,637 US6771934B2 (en) | 2001-06-19 | 2001-06-19 | Methods and systems for reducing interference across coverage cells |
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JP2006327426A Expired - Fee Related JP4785720B2 (ja) | 2001-06-19 | 2006-12-04 | カバレージセルにわたる干渉を削減するための方法およびシステム |
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EP (1) | EP1400025B1 (ja) |
JP (2) | JP2004531975A (ja) |
CA (1) | CA2448521C (ja) |
DE (1) | DE60231978D1 (ja) |
WO (1) | WO2002103920A2 (ja) |
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DE60231978D1 (de) | 2009-05-28 |
US6771934B2 (en) | 2004-08-03 |
WO2002103920A2 (en) | 2002-12-27 |
JP2004531975A (ja) | 2004-10-14 |
CA2448521A1 (en) | 2002-12-27 |
EP1400025A2 (en) | 2004-03-24 |
JP4785720B2 (ja) | 2011-10-05 |
EP1400025B1 (en) | 2009-04-15 |
WO2002103920A3 (en) | 2003-04-10 |
EP1400025A4 (en) | 2006-01-11 |
CA2448521C (en) | 2010-01-12 |
US20030003906A1 (en) | 2003-01-02 |
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