Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
MULTI-USER SCHEDULING METHOD AND DEVICE THEREOF, AND MULTI-USER BEAM FORMING METHOD AND DEVICE THEREOF
Document Type and Number:
Japanese Patent JP2011024217
Kind Code:
A
Abstract:

To provide a multi-user scheduling method and multi-user beam forming method capable of balancing performance with complexity.

The multi-user scheduling method includes: selecting at least one user to be scheduled as a group leader user; retrieving a group member user corresponding to the group leader user for each group leader user from a given number of users to be scheduled other than the group leader user based on a system capacity; and using the group leader user and the corresponding group member user to constitute a candidate user group and selecting a candidate user group having a largest system capacity as a scheduling user group. Each user in the scheduling user group selected by the multi-user scheduling method can be used to form a zero-forcing based beam.


Inventors:
RAN YO
ZHANG ZHAN
KAYAMA HIDETOSHI
Application Number:
JP2010000162965
Publication Date:
February 03, 2011
Filing Date:
July 20, 2010
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
NTT DOCOMO INC
International Classes:
H04J99/00; H04B7/04; H04W16/28; H04W72/12
Foreign References:
WO2009026768A12009-03-05
US20080268834A12008-10-30
US20070066238A12007-03-22
WO2009026768A12009-03-05
US20080268834A12008-10-30
Other References:
JPN6014015792; Ari Hottinen et al.: 'Optimal user pairing in downlink MU-MIMO with transmit precoding' Modeling and Optimization in Mobile, Ad Hoc, and Wireless Networks and Workshops, 2008. WiOPT 2008. , 20080403, pp.97-99
JPN6014015797; 関 洋亮 他: '基地局連携マルチユーザMIMOにおける平均受信SNRを利用したユーザ選択方法の一評価' 電子情報通信学会技術研究報告 Vol.109, No.164, 20090727, pp.133-138
JPN6014015792; Ari Hottinen et al.: 'Optimal user pairing in downlink MU-MIMO with transmit precoding' Modeling and Optimization in Mobile, Ad Hoc, and Wireless Networks and Workshops, 2008. WiOPT 2008. , 20080403, pp.97-99
JPN6014015797; 関 洋亮 他: '基地局連携マルチユーザMIMOにおける平均受信SNRを利用したユーザ選択方法の一評価' 電子情報通信学会技術研究報告 Vol.109, No.164, 20090727, pp.133-138
Attorney, Agent or Firm:
三好 秀和
伊藤 正和
高橋 俊一
伊藤 市太郎