Patent
Method and apparatus for providing channel state information-reference signal (csi-rs) configuration information in a wireless communication system supporting multiple antennas
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TLDR
In this paper, a method and apparatus for transmitting and receiving a CSI-Reference Signal (CSI-RS) in a wireless communication system supporting multiple antennas is described, which includes transmitting, at a base station, information of one or more CSI-RS configurations to a mobile station.Abstract:
A method and apparatus for transmitting and receiving a Channel State Information-Reference Signal (CSI-RS) in a wireless communication system supporting multiple antennas are disclosed. The method includes transmitting, at a base station, information of one or more CSI-RS configurations to a mobile station, wherein the one or more CSI-RS configurations include one CSI-RS configuration for which the mobile station assumes non-zero transmission power for CSI-RS, transmitting, at the base station, information indicating a CSI-RS configuration for which the mobile station assumes zero transmission power for the CSI-RS among the one or more CSI-RS configurations to the mobile station, mapping, at the base station, CSI-RSs to resource elements of a downlink subframe based on the one or more CSI-RS configurations, and transmitting, at the base station, the downlink subframe mapped with the CSI-RSs to the mobile station.read more
Citations
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Patent
Communicating channel state information (csi) of multiple transmission points
TL;DR: In this paper, the authors consider methods and systems for determining and communicating channel state information (CSI) for one or more transmission points (or CSI reference signal resources) and further contemplate determining transmission states may include applying at least one CSI process for CSI reporting.
Patent
Method and device for reporting channel state information in wireless communication system
TL;DR: In this article, a method of reporting channel state information (CSI) on a terminal in which a plurality of CSI processes are configured in a wireless communication system according to an embodiment of the present invention includes: measuring a channel based on a CSI reference signal (RS) resource related to one of the CSI processes; measuring interference based on CSI-interference measurement (IM) resources related to the CSI process; determining CSI based on the measured channel and the measured interference; and reporting the CSI through an uplink channel.
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Method for reporting channel state information in wireless communication system and device therefor
Hanbyul Seo,Daewon Lee +1 more
TL;DR: In this paper, the authors present a method for reporting channel state information (CSI) in a wireless communication system, and the method performed by a terminal comprises the steps of: receiving, from a base station, a radio resource control (RRC) signaling including control information relating to a configuration of a 12-port CSI-reference signal (RS); receiving from the base station the 12-Port CSI-RS through a 12port CSI reference signal resource on the basis of the received control information; and reporting CSI to the Base Station on the based of the Received CSI-
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System and method for wireless communications measurements and csi feedback
TL;DR: In this paper, the UE generates and sends to the network a CSI report in accordance with the CSI report configuration and using the RS based measurement and the interference measurement (IM) resource configurations.
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References
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Patent
Reference signal for a coordinated multi-point network implementation
TL;DR: In this article, a system and method of receiving a channel state information reference signal (CSI-RS) is presented, where a first CSI-RS transmitted from a base station is received at a first periodicity using a first set of antenna ports.
Patent
Control channel interference management and extended PDCCH for heterogeneous network
Mo-Han Fong,Youn Hyoung Heo,Hua Xu,Jack Anthony Smith,Andrew Mark Earnshaw,Robert Novak,Zhijun Cai,Sean Mcbeath +7 more
TL;DR: In this paper, a method for managing control channel interference is proposed, which includes a first access node performing at least one of blanking and transmitting at lower than nominal transmit power on at least a portion of a control channel.
Patent
Method for processing csi-rs in wireless communication system
TL;DR: In this article, a method for processing a Channel State Information Reference Signal (CSI-RS) in a wireless communication system based on a multiple access scheme is provided. But, the CSI-RS transmission method defines a plurality of CSI-RSA patterns, assigns the CSI RSA patterns to individual cells, uses the CSI RSs alternately per Physical Resource Block (PRB) so as to utilize the transmission powers of all antenna ports for transmitting CSI-Rss, transmits Coordinated Multi Point (CoMP) CSI-SRSs and non-CoMP CSI-
Patent
Method and apparatus for requesting and reporting channel quality information in mobile communication system
TL;DR: In this article, the authors propose a method and device for requesting and reporting channel quality information in a mobile communication system, where a base station locates a dedicated feedback channel for channel QI report to an uplink radio resource, transmits the allocation information to subscriber stations, and generates a CQI report message to request QI from the subscriber stations.
Patent
Method and user equipment for measuring interference, and method and base station for receiving interference information
TL;DR: In this article, a method and apparatus for providing information indicating radio resources for multi-cell interference measurement at a BS so that a UE can more accurately measure interference are disclosed, but the method is limited to a single UE.