Title:
直交カバーリング・コードに基づいて多地点協調データを送信する方法
Document Type and Number:
Japanese Patent JP5818912
Kind Code:
B2
Abstract:
The present invention relates to methods of transmitting coordinate multiple point data based on orthogonal covering codes. In an embodiment of the present invention, there is provided a method of transmitting downlink data in a base station of a multiple input multiple output system. The method includes: A. determining a plurality of antenna groups from antennas of a plurality of coordinate multiple point cells; B. modulating inter-cell coordinate multiple point downlink data symbols for each antenna groups using different orthogonal covering codes. The orthogonal covering codes have a length not greater than twice the number of the antenna groups. With the methods of the present invention, a base station and a user equipment can distinguish signals from different coordinate multiple point cells, different antenna groups, or different coordinate multiple point clusters, reducing interference between signals from the different coordinate multiple point cells, the different antenna groups, or the different coordinate multiple point clusters.
Inventors:
Tsang, Shaobo
Cao, Yang
Cao, Yang
Application Number:
JP2013547932A
Publication Date:
November 18, 2015
Filing Date:
January 03, 2012
Export Citation:
Assignee:
Alcatel-Lucent
International Classes:
H04W28/16; H04J1/00; H04J11/00; H04J99/00; H04W16/28
Domestic Patent References:
| JP2008543141A |
Foreign References:
| WO2004064295A2 | ||||
| WO2010084901A1 | ||||
| WO2004077730A2 |
Attorney, Agent or Firm:
Okabe
Koji Yoshizawa
Katsumi Miyama
Takashi Kawasaki
Koji Yoshizawa
Katsumi Miyama
Takashi Kawasaki
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