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LTE fair scheduling method based on post-evaluation mechanism

A scheduling method and post-evaluation technology, applied in the field of LTE fair scheduling based on the post-evaluation mechanism, can solve problems such as lack of smoothness, no consideration of balance, and no consideration of mutual influence, etc., to achieve the effect of ensuring customer perception and improving service quality

Active Publication Date: 2019-07-16
HUAXIN CONSULTATING CO LTD
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  • Abstract
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Problems solved by technology

[0003] However, the current scheduling methods, such as RR (Round Robin, round-robin scheduling), PF (Proportion Fair, proportional fairness) and SJF (Short Job First, shortest job first), etc., all simply emphasize system throughput or fairness, and do not Consider how to strike a balance between the two
In addition, almost all existing scheduling methods optimize the scheduling at a certain time in isolation, without considering the mutual influence between the scheduling of the same user, which will cause the user's jumpy perception and lack of smoothness

Method used

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  • LTE fair scheduling method based on post-evaluation mechanism
  • LTE fair scheduling method based on post-evaluation mechanism
  • LTE fair scheduling method based on post-evaluation mechanism

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Embodiment Construction

[0039] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0040] Such as figure 1 The illustrated embodiment is an LTE fair scheduling method based on a post-evaluation mechanism, including the following steps: throughput accounting, priority initialization, scenario evaluation, starvation tracking and scheduling implementation.

[0041] Step 1: Throughput accounting;

[0042] Step 1-1: Set each user u i The bit error rate of use the formula Calculate u for each user i of Among them, u i ∈{u 1 , u 2 ,...,u N}, representation and bit error rate related intermediate variables;

[0043] Step 1-2: Set each user u i The signal-to-noise ratio is use the formula Calculate u for each user i User throughput per unit bandwidth

[0044] Step 1-3: Set each user u i The bandwidth used is use the formula Calculate u for each user i Throughput

[0045] Step 2: Priority initializati...

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Abstract

The invention discloses an LTE fair scheduling method based on a post-assessment mechanism, which comprises the following steps: throughput calculation, priority initialization, scene evaluation, starvation tracking and scheduling implementation. The present invention can automatically track the speed change of each user in the cell at different times by setting the post-evaluation threshold, and count the scheduling times of each user in real time, and mark the users in the "starved" state in real time, By preemptively dispatching hungry users, the service quality of business development is improved as much as possible to ensure customer perception.

Description

technical field [0001] The invention relates to a dispatching method of an LTE system, in particular to a post-evaluation mechanism-based LTE fair dispatching method. Background technique [0002] LTE adopts various key technologies such as OFDM, SC-FDMA and MIMO to improve and enhance the air interface technology of 3G, providing users with higher transmission rate, lower delay and better QoS (Quality of Service, quality of service) ), and the most important point to improve throughput is how to better use the scheduling algorithm. For different users, RB (Resource Block, resource block) allocation is performed according to various factors such as their current channel indication, service quality, and scheduling status, so as to ensure that the resources allocated each time are not wasted as much as possible, and improve user perception. Constrained by the limited spectrum resources, the resource scheduling algorithm of LTE is very important, which determines the sequence ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W72/12H04L5/00
CPCH04L5/0071H04W72/542H04W72/566H04W72/535
Inventor 肖清华
Owner HUAXIN CONSULTATING CO LTD
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