Title:
CSI-RS joint transmission for channel state feedback and transmission point selection
Document Type and Number:
Japanese Patent JP6359675
Kind Code:
B2
Abstract:
Certain example embodiments of the present disclosure provide techniques for joint transmission of channel state information reference signals (CSI-RS) from multiple transmission points (TPs) for channel state feedback and/or TP selection. An example method generally includes coordinating with one or more other TPs to jointly transmit a channel state information reference signal (CSI-RS) to a user equipment (UE); signaling a reporting restriction to the UE; receiving precoding matrix indicator (PMI) feedback from the UE based on the jointly transmitted CSI-RS and subject to the reporting restriction; and selecting one or more of the TPs to serve based on the PMI feedback.
Inventors:
Xiao, Lei
Bannister, Brian Clark
Fara Jidana, Amir
Gorokob, Alexei Yurievic
Bannister, Brian Clark
Fara Jidana, Amir
Gorokob, Alexei Yurievic
Application Number:
JP2016549023A
Publication Date:
July 18, 2018
Filing Date:
January 28, 2015
Export Citation:
Assignee:
QUALCOMM INCORPORATED
International Classes:
H04W28/16; H04W16/28; H04W24/10; H04W72/04
Foreign References:
| WO2014018756A1 | ||||
| WO2013110219A1 | ||||
| US20130194943 |
Attorney, Agent or Firm:
Kurata Masatoshi
Yoshihiro Fukuhara
Morisezo Iseki
Takashi Okada
Yoshihiro Fukuhara
Morisezo Iseki
Takashi Okada