Channel quality reporting apparatus and method

A channel quality report and channel quality technology, which is applied in the field of channel quality report devices, can solve problems such as differences, inability to resist channel changes, and inability to directly reflect BLER quality and throughput, etc., to achieve the best channel quality effect

Inactive Publication Date: 2012-11-28
MEDIATEK INC
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Problems solved by technology

However, this quality metric does not directly reflect BLER quality and throughput
Furthermore, this quality indicator measurement depends on the pilot part of one physical channel, not on the data part of another physical channel, so it can lead to differences due to different channel variations
That is, a fixed mapping of quality indicators directly mapped to CQI cannot resist channel variations and thus cannot generate proper CQI reports

Method used

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  • Channel quality reporting apparatus and method
  • Channel quality reporting apparatus and method
  • Channel quality reporting apparatus and method

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Embodiment Construction

[0018] Certain terms are used throughout the specification and claims to refer to particular components. Those skilled in the art should understand that hardware manufacturers may use different terms to refer to the same component. The specification and claims do not use the difference in name as a way to distinguish components, but use the difference in function of components as a criterion for distinguishing. "Includes" mentioned throughout the specification and claims is an open-ended term, so it should be interpreted as "including but not limited to". In addition, the term "coupled" herein includes any direct and indirect means of electrical connection. Therefore, if it is described that the first device is coupled to the second device, it means that the first device may be directly electrically connected to the second device, or indirectly electrically connected to the second device through other devices or connection means.

[0019] Please refer to figure 1 , in a com...

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Abstract

The present invention provides a channel quality reporting method used for a communication system including a channel quality indicator, including: detecting a first measurement reflecting a first communication quality of the communication system; providing a series of thresholds and mapping functions, each mapping functions in association with a bin defined by two adjacent thresholds, so the first measurement is mapped to the channel quality indicator by the mapping function in association with the bin which matches the first measurement; updating a second measurement used for reflecting a second communication quality of the communication system; and updating at least one of the thresholds according to the second measurement. The present invention also provides a channel quality reporting apparatus. The channel quality reporting method and apparatus provided by the present invention not only track the actual channel characteristics, but also obtain better channel quality.

Description

technical field [0001] The present invention relates to a channel quality reporting device and method of a communication system, in particular to a channel quality reporting device and method that dynamically adapt to a mapping relationship, the mapping relationship is the relationship between channel measurement values ​​and channel quality indicators. Background technique [0002] Communication systems, especially wireless communication systems, have become an important part of modern society. Generally speaking, in a wireless communication system, the radio waves established by the base station cover a cell, so a terminal (such as user equipment (User Equipment, UE for short)) can pass through the wireless communication channel between the base station and the terminal. The signal transmission communicates with the base station. Through different combinations of communication parameters, such as combinations of different modulation schemes and / or coding schemes, the comm...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W24/10
CPCH04W36/0083H04W72/085H04W24/10
Inventor 钟佩勋
Owner MEDIATEK INC
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