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LTE downlink scheduling method based on throughput capacity optimization

A technology of downlink and scheduling method, which is applied in the direction of multiple use of transmission path, transmission path sub-channel allocation, signaling allocation, etc. It can solve the problems of data transmission volume reduction, no in-depth consideration of mutual influence factors, etc., and achieve improvement Packet loss rate, the effect of improving throughput

Active Publication Date: 2018-11-02
CHANGSHA UNIVERSITY
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Problems solved by technology

[0004] In view of the above defects or improvement needs of the prior art, the present invention provides a throughput-optimized LTE downlink scheduling method. Factors that affect each other during the actual data transmission process may lead to technical problems that reduce the actual data transmission volume of users during the physical resource block allocation process

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  • LTE downlink scheduling method based on throughput capacity optimization
  • LTE downlink scheduling method based on throughput capacity optimization
  • LTE downlink scheduling method based on throughput capacity optimization

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[0042] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention. In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not constitute a conflict with each other.

[0043] Such as figure 1 As shown, the LTE downlink scheduling method based on throughput optimization of the present invention comprises the following steps:

[0044] (1) Obtain the number of physical resource blocks that can be called in a single transmission time interval (1 millisecond) according to the bandwidth value of the downlink, and determine the number of users to be assigned to the ...

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Abstract

The invention discloses an LTE downlink scheduling method based on throughput capacity optimization. The method is characterized by comprising the following steps of acquiring the quantity of callablephysical resource blocks within a single transmission time interval according to a bandwidth value of a downlink, determining the quantity of users to be subjected to physical resource block distribution and a resource distribution algorithm, determining measures of all users to be subjected to physical resource block distribution on all the callable physical resource blocks according to the determined resource distribution algorithm, and distributing all the callable physical resource blocks to the users according to the measures of all the users to be subjected to physical resource block distribution on all the callable physical resource blocks. According to the method provided by the invention, the technical problem that the existing LTE downlink scheduling method does not deeply consider mutual influence factors of the distributed physical resource blocks during an actual data transmission process, and thus the actual data transmission quantity of the user is reduced during the physical resource block distribution process can be solved.

Description

technical field [0001] The invention belongs to the technical field of wireless communication, and more specifically, relates to an LTE downlink scheduling method based on throughput optimization. Background technique [0002] As a mainstream wireless communication network, a long term evolution (Long term evolution, LTE for short) network has been widely used at present. Downlink scheduling is a very important link in the existing LTE network. Currently, downlink scheduling methods commonly used mainly include Proportional fair (PF) algorithm, Max channel quality indicator (Max- CQI) algorithm, Modified Largest Weighted Delay First (M-LWDF for short) algorithm, and Exponential proportional fair (Exponentialproportional fair, EXP / PF for short) algorithm. [0003] However, the above-mentioned downlink scheduling methods all have flaws that cannot be ignored: they do not take into account the factors that affect each other in the actual data transmission process of the alloca...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W72/12H04L5/00
CPCH04L5/0057H04L5/006H04W72/1273H04W72/542H04W72/52
Inventor 李方敏曾源远张韬彭小兵栾悉道杨志邦马小林
Owner CHANGSHA UNIVERSITY
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