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Scheduling method for adjustable low-complexity wireless resource scheduler

A wireless resource scheduling, low-complexity technology, applied in wireless communication, electrical components, etc., can solve problems such as ignoring fairness, not considering channel quality, and low efficiency of communication systems, achieving low complexity, simple mathematical models, and reduced Effect of System Latency

Active Publication Date: 2016-04-20
NANJING PANDA ELECTRONICS +1
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Problems solved by technology

The MaximumC / I algorithm preferentially selects the connection with the highest carrier-to-interference ratio for service in each frame. The system throughput obtained by this algorithm is the upper bound of all scheduling algorithms, but ignoring fairness will make UEs with poor channel quality unable to Get service, causing "hunger" of users with low channel quality
The RR algorithm is contrary to the MaximumC / I algorithm. It does not aim at maximizing the system throughput, so it does not consider the channel quality of the UE, and tries to schedule users in the system as much as possible. Although fairness can be guaranteed, it will cause communication system efficiency. lower

Method used

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  • Scheduling method for adjustable low-complexity wireless resource scheduler
  • Scheduling method for adjustable low-complexity wireless resource scheduler
  • Scheduling method for adjustable low-complexity wireless resource scheduler

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Embodiment Construction

[0021] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0022] Step 1. The user's CQI in TD-LTE has 15 levels, and the Qos level, that is, QCI (QoSClassIdentifier) ​​has 9 levels. In step 1, the protocol stack only needs to input the user's CQI and QCI class numbers M and N into the scheduler . For user sent data rate , which is the average rate at which the user has obtained scheduling opportunities and transmits data. The scheduler will calculate the user's "served level" based on this value, and the scheduler will divide the served level into 255 levels. For non-GBR (non-guaranteed rate) services, AMBR (cumulative maximum bit rate) is defined in LTE, which is the upper limit of the sum of non-GBR service rates of users. The scheduler divides the interval (0,1) into 255 intervals, namely (0,1 / 255),(1 / 255,2 / 255),...,(244 / 255,1). scheduler based on The interval in which / AMBR falls, yields t...

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Abstract

The invention discloses a scheduling method for an adjustable low-complexity wireless resource scheduler. According to a PF scheduling algorithm, a wireless resource scheduler applied to a TD-LTE enterprise-level base station (Femtocell) is designed, efficiency and equity are taken into account comprehensively, and the scheduler has the characteristics that the calculation complexity is low, the model is simple, and operators are flexibly and adjustable, so that operators can flexibly adjust the wireless resource scheduler through an OAM configuration page based on equity and efficiency, the calculation complexity is low, and the system time delay can be effectively lowered.

Description

technical field [0001] The invention relates to an adjustable scheduling method of a low-complexity wireless resource scheduler, which belongs to the technical field of mobile communication. Background technique [0002] Mobile communication systems are resource-constrained systems, but the number of mobile users continues to grow rapidly. Therefore, how to reasonably allocate limited wireless resources among multiple users to meet the increasing user needs has always been a challenge for mobile communication system manufacturers and operators. A key issue of concern to businessmen. [0003] LTE introduces a shared channel mechanism, which needs to solve the problem of multiple UEs and multiple services competing for shared resources. In the LTE system, resource scheduling is mainly implemented by the eNodeB's scheduler at the MAC layer, which can be divided into uplink and downlink schedulers, which are responsible for reasonably allocating uplink and downlink shared chann...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W72/12
CPCH04W72/54H04W72/543H04W72/569
Inventor 梅妍谢孟昊施渊籍
Owner NANJING PANDA ELECTRONICS
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