Carrier resource dynamic adjustment method and carrier resource dynamic adjustment device based on carrier aggregation

Abstract

The invention provides a carrier resource dynamic adjustment method and a carrier resource dynamic adjustment device based on carrier aggregation. The method comprises the following steps: determining distribution and utilization information of all physical resource blocks PRB in a carrier; and adjusting the number of the PRBs in the carrier distributed to primary cell user equipment UE taking a current cell as a primary cell according to preset rules corresponding to the distribution and utilization information so as to enable at least one piece of secondary cell UE taking the current cell as a secondary cell to use the PRBs in the carrier not distributed to the primary cell UE after adjustment, wherein the preset rules include rules set according to a preset heavy load decision threshold LC_Threshold, the secondary cell UE is UE supporting carrier aggregation, and LC_Threshold belongs to [0, 1]. By using the method, the problem of resource distribution under carrier aggregation is solved, the number of times of carrier resource dynamic adjustment is reduced, packet loss of retransmission data is avoided, the frequency resources of UE taking the carrier as a primary cell are first guaranteed, and the performance of UE is ensured to the greatest extent while effective utilization of frequency resources is achieved.

Description

technical field [0001] The present invention relates to communication technology, in particular to a method and device for dynamically adjusting carrier resources based on carrier aggregation. Background technique [0002] The maximum transmission bandwidth supported by the Long Term Evolution (LTE for short) system is 20MHz. In order to provide mobile users with a higher data rate, the Long Term Evolution Advanced (LTE-A for short) system proposes a carrier aggregation technology (CarrierAggregation, CA for short). ), the purpose of which is to provide greater bandwidth for user equipment (User Equipment, referred to as UE) with corresponding capabilities, and increase the peak rate of the user equipment. The carrier aggregation technology aggregates two or more component carriers (Component Carriers, CC for short) to support a transmission bandwidth greater than 20 MHz and a maximum of 100 MHz. The LTE-A system using carrier aggregation technology is a multi-carrier syste...

AI Technical Summary

Problems solved by technology

The existing resource scheduling methods for these two types of UEs are: polling algorithm, maximum signal-to-noise ratio algorithm, proportional fairness algorithm, etc. It is impossible to arrange the priorities of these two types of different UEs, and it is impossible to arrange the resources of these two types of different UEs. The allocation is differentiated, and it cannot meet the requirements of the quality of service required by each UE

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