Invention Grant
- Patent Title: Base-station apparatus, terminal apparatus, communication system, and communication method
- Patent Title (中): 基站装置，终端装置，通信系统和通信方法
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Application No.: US13976594Application Date: 2011-12-22
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Publication No.: US09172448B2Publication Date: 2015-10-27
- Inventor: Kazuyuki Shimezawa , Toshizo Nogami , Kimihiko Imamura
- Applicant: Kazuyuki Shimezawa , Toshizo Nogami , Kimihiko Imamura
- Applicant Address: JP Osaka
- Assignee: Sharp Kabushiki Kaisha
- Current Assignee: Sharp Kabushiki Kaisha
- Current Assignee Address: JP Osaka
- Agency: Keating & Bennett, LLP
- Priority: JP2010-289663 20101227
- International Application: PCT/JP2011/079785 WO 20111222
- International Announcement: WO2012/090851 WO 20120705
- Main IPC: H04B7/04
- IPC: H04B7/04 ; H04B7/06 ; H04B7/02 ; H04L5/00
Abstract:
A base-station apparatus configures a terminal apparatus with information related to mapping between a first channel-state information reference signal and a second channel-state information reference signal and codebook subset restriction information that restricts selection of a codebook subset as feedback information by the terminal apparatus, the codebook subset indicating precoding a weight to perform a first communication and a second communication. Using the information related to the mapping and the codebook subset restriction information, the terminal apparatus selects a codebook to perform the first communication and a codebook to perform the second communication. The terminal apparatus configures the base-station apparatus with information indicating the codebook to perform the first communication and information indicating the codebook to perform the second communication.
Public/Granted literature
- US20130272250A1 BASE-STATION APPARATUS, TERMINAL APPARATUS, COMMUNICATION SYSTEM, AND COMMUNICATION METHOD Public/Granted day:2013-10-17
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