SCHEDULING FOR MULTI-USER MIMO IN WIRELESS COMMUNICATION NETWORK

Title:

SCHEDULING FOR MULTI-USER MIMO IN WIRELESS COMMUNICATION NETWORK

Document Type and Number:

Japanese Patent JP2014090453

Kind Code:

A

Abstract:

To provide techniques for scheduling UEs for data transmission in a wireless network.

A scheduler receives CDI and CSI from a plurality of UEs. The CDI from each UE comprises at least one eigenvector, and the CSI from each UE includes at least one singular value corresponding to the at least one eigenvector. The scheduler schedules at least one UE among the plurality of UEs for data transmission on the basis of the CDI and CSI from the plurality of UEs. The scheduler selects the at least one UE on the basis of a metric related to signal-to-leakage ratio, or spectral efficiency, etc. The scheduler evaluates the performance of different sets of UEs to determine whether to schedule one UE for single-user MIMO or multiple UEs for multi-user MIMO.

Inventors:

STEFAN GEIRHOFER
AMIR FARAJIDANA
JI TINGFANG
GOROKHOV ALEXEI YURIEVITCH
ANASTASIOS STAMOULIS

Application Number:

JP2013251520A

Publication Date:

May 15, 2014

Filing Date:

December 04, 2013

Export Citation:

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Assignee:

QUALCOMM INC

International Classes:

H04W72/12; H04J99/00; H04W16/28; H04W28/18

Domestic Patent References:

JP2009141957A	2009-06-25
JP2005057778A	2005-03-03
JP2003258770A	2003-09-12
JP2005323217A	2005-11-17

Foreign References:

WO2007109630A1	2007-09-27
WO2008152612A2	2008-12-18

Other References:

JPN6014037962; Ｔａｅｓａｎｇ　Ｙｏｏ，ｅｔ　ａｌ: 'Ｍｕｌｔｉ-Ａｎｔｅｎｎａ　Ｄｏｗｎｌｉｎｋ　Ｃｈａｎｎｅｌｓ　ｗｉｔｈ　Ｌｉｍｉｔｅｄ　Ｆｅｅｄｂａｃｋ　ａｎｄ　Ｕｓｅｒ　Ｓｅｌｅｃｔｉｏｎ' Ｓｅｌｅｃｔｅｄ　Ａｒｅａｓ　ｉｎ　Ｃｏｍｍｕｎｉｃａｔｉｏｎｓ，　ＩＥＥＥ　Ｊｏｕｒｎａｌ　ｏｎＶＯＬ．２５，ＮＯ．７, 200709, ｐａｇｅｓ　１４７８-１４９１
JPN6014037963; Ｉｌｌｓｏｏ　Ｓｏｈｎ，ｅｔ　ａｌ: 'Ｄｙｎａｍｉｃ　Ｃｈａｎｎｅｌ　Ｆｅｅｄｂａｃｋ　Ｃｏｎｔｒｏｌ　ｆｏｒ　Ｌｉｍｉｔｅｄ-Ｆｅｅｄｂａｃｋ　Ｍｕｌｔｉ-Ｕｓｅｒ　ＭＩＭＯ　Ｓｙｓｔｅｍｓ' Ｃｏｍｍｕｎｉｃａｔｉｏｎｓ，　２００９．　ＩＣＣ　'０９．　ＩＥＥＥ　Ｉｎｔｅｒｎａｔｉｏｎａｌ　Ｃｏｎｆｅｒｅｎｃｅ　ｏｎ , 200906
JPN6014037964; Ｑｕａｌｃｏｍｍ　Ｅｕｒｏｐｅ: 'Ｍｕｌｔｉｐｌｅ　Ｄｅｓｃｒｉｐｔｉｏｎ　Ｃｏｄｉｎｇ　ｆｏｒ　Ｓｐａｔｉａｌ　Ｆｅｅｄｂａｃｋ　Ｐａｙｌｏａｄ　Ｒｅｄｕｃｔｉｏｎ' ３ＧＰＰ　ＴＳＧ-ＲＡＮ　ＷＧ１　＃５６　Ｒ１-０９０８６６ , 200902

Attorney, Agent or Firm:

Kurata Masatoshi
Yoshihiro Fukuhara
Nobuhisa Nogawa
Takashi Mine
Naoki Kono
Katsu Sunagawa
Morisezo Iseki
Takao Ako
Tadashi Inoue
Tatsushi Sato
Takashi Okada
Mihoko Horiuchi

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