A method and device for uplink resource scheduling for 3G/4G satellite mobile communication network

Abstract

The present invention discloses a 3G / 4G satellite mobile communication network-oriented uplink resource scheduling method and device. The steps of the method are: S1: buffer amount prediction; user equipment UE caches service data after Tn time in each scheduling cycle and report the predicted value of the buffered amount to the evolved base station eNB through the BSR in units of logical channel groups LCG; S2: Calculate the priority of the user equipment; the uplink resource scheduler of the evolved base station eNB receives the user equipment i After receiving the scheduling request, calculate the priority of the user equipment i; S3: allocate uplink resources; the eNB uplink resource scheduler allocates uplink resources to multiple user equipments in sequence according to the priorities of multiple devices. The device is used to carry out the method described above. The invention can improve the resource utilization rate and throughput of the system, and better satisfy service quality such as time delay and throughput of different services.

Description

technical field [0001] The present invention mainly relates to the field of mobile communication, in particular to an uplink resource scheduling method and device for 3G / 4G satellite mobile communication network. Background technique [0002] The LTE satellite mobile communication system introduces the 3rd Generation Partnership Project 3GPP (The 3rd Generation Partnership Project) long-term evolution LTE (Long Term Evolution) standard into satellite communication, and constructs a ground-like LTE network system in space. The system combines the characteristics of high data rate of LTE and wide coverage of satellite communication, and has unique advantages in realizing high-speed global coverage of mobile communication. [0003] 3GPP started the LTE project in 2005. Compared with the third-generation mobile communication system, LTE has the characteristics of high speed, low round-trip delay, high efficiency and variable bandwidth. In uplink scheduling transmission, LTE ad...

AI Technical Summary

Problems solved by technology

However, within this 250ms, the buffer state of the UE may change greatly

The BSR information obtained by the eNB side is seriously outdated, and the scheduling result based on it does not match the amount of data that the UE currently needs to send, thus reducing the resource utilization and throughput of the system

[0012] 2. The existing packet scheduling algorithm of LTE usually makes a compromise between user fairness and system throughput, without considering the different services included in each user and the different service quality requirements between services, so that it cannot meet different service qualities Quality of service requirements such as delay and throughput of services of grade and service flow

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