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    • 4. 发明申请
    • METHOD AND ARRANGEMENTS FOR COMMUNICATION OF CHANNEL QUALITY INFORMATION IN A TELECOMMUNICATIONS SYSTEM
    • 电信系统中通道质量信息通信的方法和安排
    • WO2009008787A1
    • 2009-01-15
    • PCT/SE2007/050509
    • 2007-07-06
    • TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)MOLNAR, Karl, J.ASTELY, DavidSUNDIN, Tomas
    • MOLNAR, Karl, J.ASTELY, DavidSUNDIN, Tomas
    • H04B7/06H04L1/00H04Q7/22
    • H04B7/066H04B7/061H04B7/0632H04B7/0691H04L1/003H04L1/0068H04L1/0631
    • The present invention relates to a mobile terminal device (401), a base station (400) and a method that make it possible to use a channel quality indicator, CQI, reporting format for CQI reporting from the mobile terminal device to the base station, which CQI reporting format depends on a selected transmit antenna configuration. The mobile terminal device (400) is arranged to receive a signal (404) from a number of transmit antennas, which signal includes a number of subcarriers (412), and to determine the CQI, reporting format for a collection of the subcarriers based on the selected transmit antenna configuration. The mobile terminal device is further arranged to determine a number of CQI values (409) relating to said subcarriers in accordance with the determined CQI reporting format and to transmit the CQI values to the base station in a feedback signal (408). The CQI reporting format is adapted to the selected transmit antenna configuration such that the granularity of CQI reporting depends on the selected transmit antenna configuration.
    • 本发明涉及移动终端装置(401),基站(400)以及能够使用信道质量指示符,CQI,从移动终端装置向基站进行CQI报告的报告格式的方法, 哪个CQI报告格式取决于所选择的发射天线配置。 移动终端装置(400)被配置为从多个发送天线接收信号(404),该信号包括多个子载波(412),并且基于以下方式确定用于子载波的集合的报告格式: 选定的发射天线配置。 移动终端装置还被配置为根据所确定的CQI报告格式确定与所述子载波有关的CQI值(409)的数量,并且在反馈信号(408)中将CQI值发送到基站。 CQI报告格式适用于所选择的发射天线配置,使得CQI报告的粒度取决于所选择的发射天线配置。