Method and apparatus for transmitting downlink reference signal, and method and apparatus for transmitting control information in multi-cell collaborative communication system

A technology of reference signal and channel state information, applied in the field of measuring channel state information, to prevent the deterioration of data rate and solve the problem of transmission overhead

Active Publication Date: 2017-05-10
ELECTRONICS & TELECOMM RES INST
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0009] Furthermore, existing terminals only recognize the CSI-RS antenna port array as a one-dimensional

Method used

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  • Method and apparatus for transmitting downlink reference signal, and method and apparatus for transmitting control information in multi-cell collaborative communication system
  • Method and apparatus for transmitting downlink reference signal, and method and apparatus for transmitting control information in multi-cell collaborative communication system
  • Method and apparatus for transmitting downlink reference signal, and method and apparatus for transmitting control information in multi-cell collaborative communication system

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Embodiment Construction

[0095] In the following detailed description, simply by way of illustration, only certain exemplary embodiments of the invention have been shown and described. As those skilled in the art would realize, the described embodiments may be modified in various different ways, all without departing from the spirit or scope of the present invention. Accordingly, the figures and descriptions should be regarded as illustrative in nature and not restrictive. Throughout this specification, the same reference numerals designate the same elements.

[0096] Throughout this specification, a terminal may refer to a mobile terminal, mobile station, advanced mobile station, high reliability mobile station, subscriber station, portable subscriber station, access terminal, or user equipment, and it may include a terminal, mobile terminal, mobile station, advanced All or part of the functionality of a mobile station, high reliability mobile station, subscriber station, portable subscriber station...

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Abstract

The invention relates to a method and apparatus for transmitting a downlink reference signal, and a method and apparatus for transmitting control information in a multi-cell collaborative communication system. Provided is a method for a base station to set channel state information (CSI)-reference signal (RS). The base station sets a CSI-RS antenna port for a terminal. For the terminal, the base station selects one of at least one port number mapping rule for mapping a port number to the CSI-RS antenna port. Further, the base station notifies the terminal of the selected port number mapping rule.

Description

technical field [0001] The present invention relates to methods and apparatus for transmitting downlink reference signals. [0002] Furthermore, the present invention relates to a method and apparatus for measuring channel state information. [0003] Additionally, the present invention relates to a method and apparatus for communicating control information in a coordinated multipoint communication system. Background technique [0004] A multiple-input multiple-output (MIMO) scheme of a wireless communication system is a transmission / reception method using multiple transmission antennas and multiple reception antennas. In a MIMO system, multiple radio channel paths are generated between transmit and receive antennas, and the transmit / receive side separates them or combines them to increase data transmission capacity or improve transmission quality. The MIMO scheme includes a spatial multiplexing method and a spatial diversity scheme. Downlink MIMO schemes introduced to Lon...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L5/00H04W72/04H04W72/08H04B7/06
CPCH04B7/0626H04L5/0008H04L5/0023H04L5/0046H04L5/0094H04W72/542H04W72/23H04B7/02H04B7/024H04B7/0469H04B7/06H04L5/0007H04L5/005H04L47/83H04L47/824H04W74/006
Inventor 文盛铉金哲淳辛优滥朴基尹高永舟祚南俊永
Owner ELECTRONICS & TELECOMM RES INST
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