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Method and device for determining cqi

A technology of counters and resources, applied in the field of CQI determination, can solve the problems of low system spectral efficiency, low data transmission rate, high data transmission reliability, etc., and achieve the effect of high spectrum utilization and optimal throughput

Active Publication Date: 2022-04-22
UNISOC CHONGQING TECH CO LTD
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  • Claims
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Problems solved by technology

However, in the connection mode of the Machine-type Communication (MTC) system, the downlink adopts a repeated transmission mechanism. For complex network environments, the current CQI reporting algorithm strategy cannot meet the needs of MTC terminals with enhanced coverage. Requirements for data transmission reliability, lower data transmission rates, and lower system spectral efficiency

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  • Method and device for determining cqi
  • Method and device for determining cqi

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Embodiment Construction

[0026] Embodiments of the present application are described below with reference to the drawings in the embodiments of the present application.

[0027] see figure 1 , figure 1 It is a schematic diagram of a wireless communication system proposed in the embodiment of this application. Such as figure 1 As shown, the wireless communication system may include network equipment and terminal equipment. Network devices can communicate with terminal devices through wireless communication. When the network device sends data to the terminal device, the network device can select an appropriate scheduling algorithm and downlink data block size according to the Channel Quality Indication (CQI) information reported by the terminal device, so as to ensure that the terminal The best downlink performance can be obtained in any environment. figure 1 The shapes and quantities of the network devices and terminal devices shown in are for example only, and do not limit the embodiments of the ...

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Abstract

The embodiment of the present application discloses a method and device for determining CQI. The method includes: dividing the first time window into N groups of first resources, each group of first resources includes M repetition times, and dividing the M The number of repetitions is divided into L groups of repetitions, each group of repetitions corresponds to a first counter, and based on the analysis times of the N groups of first resources, the values ​​of L first counters and second counters are counted ; Determine a channel quality indicator (CQI) adjustment value based on the values ​​of the L first counters and the value of the second counter. Based on the receiving situation of the first resource, the present application completes the self-adaptive adjustment of the CQI, and realizes that the terminal equipment can obtain optimal throughput and higher spectrum utilization rate in different wireless environments.

Description

technical field [0001] The present application relates to the field of communication technologies, and in particular to a method and device for determining a CQI. Background technique [0002] Currently, the terminal device determines the reported Channel Quality Indication (Channel Quality Indication, CQI) feedback grade value, the CQI grade value determines the difference between the downlink modulation method and the transport block (Transport Block, TB) size, the larger the CQI grade value, the higher the modulation and coding method adopted by the network equipment, and the higher the efficiency, The corresponding TB is also larger, thus providing a higher downlink peak throughput. However, in the connection mode of the Machine-type Communication (MTC) system, the downlink adopts a repeated transmission mechanism. For complex network environments, the current CQI reporting algorithm strategy cannot meet the needs of MTC terminals with enhanced coverage. Requirements f...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L1/00H04L5/00
CPCH04L1/0026H04L5/0057
Inventor 刘发宽黄利军罗兰何翠
Owner UNISOC CHONGQING TECH CO LTD
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