Title:
異種ネットワークにおけるセル間干渉調整方法および異種ネットワーク
Document Type and Number:
Japanese Patent JP5654128
Kind Code:
B2
Abstract:
Provided are a method for coordinating inter-cell interference in a heterogeneous network (HetNet) and the heterogeneous network. The method includes: forming M normal base stations and low-power nodes within coverage of the respective normal base stations in the heterogeneous network into a coordinated group; combining mute/non-mute states of bandwidths of the M normal base stations to obtain a plurality of states of the coordinated group; a user of each of the normal base stations feeding at least one first CQI back to the normal base station; a user of each of the low-power nodes feeding one or more second CQIs back to the low-power node; using the first CQI and the second CQIs as a basis to make capacity estimation of the coordinated group; and setting the mute/non-mute states of the bandwidths of the M normal base stations in accordance with a state of the coordinated group corresponding to an optimal system capacity so as to perform data transmission. In the method for coordinating interference provided by the present invention, M transmission points each including one or more normal base stations and low-power nodes covered by the respective normal base stations can be formed into a coordinated group, thereby extending processing for the normal base stations up to all the transmission points in the coordinated group.
Inventors:
永田 聡
ワン ジン
ジャン ユー
シェ シャオミン
チン ラン
須田 博人
ワン ジン
ジャン ユー
シェ シャオミン
チン ラン
須田 博人
Application Number:
JP2013523944A
Publication Date:
January 14, 2015
Filing Date:
July 09, 2012
Export Citation:
Assignee:
株式会社ＮＴＴドコモ
International Classes:
H04W72/04; H04W16/32; H04W24/10; H04W28/16
Domestic Patent References:
| JPH10145842A | 1998-05-29 |
Foreign References:
| WO2010032848A1 | 2010-03-25 |
Other References:
JPN6012050766; ＮＴＴ ＤＯＣＯＭＯ: 'Ｓｉｇｎａｌｉｎｇ ｔｏ Ｓｕｐｐｏｒｔ ＰＤＳＣＨ Ｍｕｔｉｎｇ［ｏｎｌｉｎｅ］' ３ＧＰＰ ＴＳＧ-ＲＡＮ ＷＧ１＃６２ｂｉｓ Ｒ１-１０５４３４ , 20101015
JPN6012050768; ＮＴＴ ＤＯＣＯＭＯ: 'ＣＱＩ Ｅｘｔｅｎｓｉｏｎ ｆｏｒ Ｃｏｏｒｄｉｎａｔｅｄ Ｓｃｈｅｄｕｌｉｎｇ／Ｂｅａｍｆｏｒｍｉｎｇ［ｏｎｌｉｎｅ］' ３ＧＰＰ ＴＳＧ ＲＡＮ ＷＧ１ Ｍｅｅｔｉｎｇ ＃５９ｂｉｓ Ｒ１-１００７２２ , 20100122
JPN6012050770; ＮＴＴ ＤＯＣＯＭＯ: 'ＤＬ ＣｏＭＰ Ｓｃｈｅｍｅ ｉｎ Ｒｅｌ-１１［ｏｎｌｉｎｅ］' ３ＧＰＰ ＴＳＧ ＲＡＮ ＷＧ１ Ｍｅｅｔｉｎｇ ＃６６ｂｉｓ Ｒ１-１１３２９１ , 20111014
JPN6012050772; ＮＴＴ ＤＯＣＯＭＯ: 'ＣＳＩ Ｆｅｅｄｂａｃｋ Ｓｃｈｅｍｅ ｆｏｒ ＪＴ ＣｏＭＰ［ｏｎｌｉｎｅ］' ３ＧＰＰ ＴＳＧ ＲＡＮ ＷＧ１ Ｍｅｅｔｉｎｇ ＃６６ｂｉｓ Ｒ１-１１３２９２ , 20111014
CSNC201110005312; ＮＴＴ ＤＯＣＯＭＯ: 'Ｓｉｇｎａｌｉｎｇ ｔｏ Ｓｕｐｐｏｒｔ ＰＤＳＣＨ Ｍｕｔｉｎｇ［ｏｎｌｉｎｅ］' ３ＧＰＰ ＴＳＧ-ＲＡＮ ＷＧ１＃６２ｂｉｓ Ｒ１-１０５４３４ , 20101015
JPN6012050768; ＮＴＴ ＤＯＣＯＭＯ: 'ＣＱＩ Ｅｘｔｅｎｓｉｏｎ ｆｏｒ Ｃｏｏｒｄｉｎａｔｅｄ Ｓｃｈｅｄｕｌｉｎｇ／Ｂｅａｍｆｏｒｍｉｎｇ［ｏｎｌｉｎｅ］' ３ＧＰＰ ＴＳＧ ＲＡＮ ＷＧ１ Ｍｅｅｔｉｎｇ ＃５９ｂｉｓ Ｒ１-１００７２２ , 20100122
JPN6012050770; ＮＴＴ ＤＯＣＯＭＯ: 'ＤＬ ＣｏＭＰ Ｓｃｈｅｍｅ ｉｎ Ｒｅｌ-１１［ｏｎｌｉｎｅ］' ３ＧＰＰ ＴＳＧ ＲＡＮ ＷＧ１ Ｍｅｅｔｉｎｇ ＃６６ｂｉｓ Ｒ１-１１３２９１ , 20111014
JPN6012050772; ＮＴＴ ＤＯＣＯＭＯ: 'ＣＳＩ Ｆｅｅｄｂａｃｋ Ｓｃｈｅｍｅ ｆｏｒ ＪＴ ＣｏＭＰ［ｏｎｌｉｎｅ］' ３ＧＰＰ ＴＳＧ ＲＡＮ ＷＧ１ Ｍｅｅｔｉｎｇ ＃６６ｂｉｓ Ｒ１-１１３２９２ , 20111014
CSNC201110005312; ＮＴＴ ＤＯＣＯＭＯ: 'Ｓｉｇｎａｌｉｎｇ ｔｏ Ｓｕｐｐｏｒｔ ＰＤＳＣＨ Ｍｕｔｉｎｇ［ｏｎｌｉｎｅ］' ３ＧＰＰ ＴＳＧ-ＲＡＮ ＷＧ１＃６２ｂｉｓ Ｒ１-１０５４３４ , 20101015
Attorney, Agent or Firm:
Hiroyoshi Aoki
Masayuki Amada
Yoshitaka Moriya
Yoko Furuse
Masayuki Amada
Yoshitaka Moriya
Yoko Furuse