Method, device and user equipment for adjusting channel quality indication in real time
A technology of channel quality indication and real-time adjustment, applied in digital transmission systems, electrical components, error prevention, etc., can solve problems such as long time consumption and unsatisfactory downlink wireless communication network performance, and achieve the effect of improving performance
Active Publication Date: 2017-06-06
ALCATEL LUCENT SHANGHAI BELL CO LTD +1
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[0003] In the existing LTE-A Rel-10 / Rel-11 signaling, the configuration parameter used for CQI adjustment on the user equipment side is only Pc, which is defined as the ratio of PDSCH EPRE to CSI-RS EPRE, however , because it needs to be configured through RRC signaling, it takes a long time to get a reasonable value, which is not ideal for improving the performance of frequency division duplex downlink wireless communication networks
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[0049] In the following detailed description of the preferred embodiments, reference will be made to the accompanying drawings which form a part hereof. The accompanying drawings show, by way of example, specific embodiments in which the invention can be practiced. The illustrated embodiments are not intended to be exhaustive of all embodiments in accordance with the invention. It is to be understood that other embodiments may be utilized and structural or logical modifications may be made without departing from the scope of the present invention. Therefore, the following detailed description is not intended to be limiting, and the scope of the invention is defined by the appended claims.
[0050] figure 1 A schematic diagram showing a method for real-time adjustment of a channel quality indication in a user equipment in a frequency division duplex downlink wireless communication network. As shown in the figure, the method includes at least the following steps:
[0051] Fi...
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The invention relates to a method for adjusting channel quality indication in real time in user equipment in a downlink wireless communication network with frequency division duplex. The method includes the following steps that non-zero power channel state information reference signal configuration information, interference measurement resource configuration information and codebook configuration information are received from the downlink wireless communication network with frequency division duplex; according to the non-zero power channel state information reference signal configuration information, a channel is measured, so that first channel information is obtained, and a precoding matrix index is selected according to the first channel information and the codebook configuration information; according to the first channel information and the precoding matrix index, first residual interference is determined. According to the method, the first residual interference is introduced so that the channel quality indication in the user equipment can be adjusted in real time, more accurate channel quality indication can be reported to a base station, and the performance of the downlink wireless communication network with frequency division duplex can be improved.
Description
technical field [0001] The present invention relates to wireless communication technology, and in particular, to a method and apparatus for real-time adjustment of channel quality indication in user equipment in a frequency division duplex downlink wireless communication network, and a user equipment including such a device. Background technique [0002] In a frequency division duplex downlink wireless communication network, the user equipment can feed back the measured channel state information (CSI: Channel State Information) to the base station, so that the base station can set such a information is taken into account. Among these pieces of information, the feedback value of Channel Quality Indication (CQI: ChannelQuality Indication) is one of the most important CSI feedback parameters, and the feedback value will greatly affect the performance of the frequency division duplex downlink wireless communication network. performance. [0003] In the existing signaling of LT...
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IPC IPC(8): H04L1/00
Inventor 熊芝兰张闽刘皓杨红卫
Owner ALCATEL LUCENT SHANGHAI BELL CO LTD