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A data caching method and system

A data cache and data request technology, applied in the information field, can solve problems such as unreasonable data cache, achieve the effect of improving user experience and reducing delay

Active Publication Date: 2022-06-03
BEIJING UNIV OF POSTS & TELECOMM +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the embodiments of the present invention is to provide a data caching method and system to solve the problem of unreasonable data caching

Method used

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Embodiment Construction

[0044] Below in conjunction with the accompanying drawings in the embodiments of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely

[0046] Step S11, obtain the request information corresponding to the data request stored by the ECS.

[0054]

[0065] CCS delivery mode: when all ECSs and MCDs do not cache the requested content f, that is, the user cannot pass the above

[0069]

[0070]

[0072]

[0074] When the MUE

[0078] Get content from CSS

[0084]

[0086] Since the ECSs in the cooperation domain are connected by optical fiber links, it is assumed that the cache node ECSs in the time-slot cooperation domain are

[0088] The calculation of the data transmission rate in the embodiment of the present application: due to the difference between the CCS and the ECS and the ECS in the cooperative domain

[0089]

[0098] 1. Problem description and conversion. In the MECC framework, the joint optimization prob...

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Abstract

The data cache method and system provided by the embodiments of the present invention can obtain the request information corresponding to the data request stored by the edge cache server ECS; according to the total number of MUEs in the area served by ECS or MCD and the preset time in the area served by ECS or MCD Calculate the popularity of the data request based on the number of MUEs that send data requests in the segment; input the popularity into the pre-trained deep reinforcement learning model DRL model to obtain the allocation strategy corresponding to the target data; if the allocation strategy is yes, then according to the allocation The policy caches the target data for the ECS or MCD, so that the ECS or MCD feeds back the target data to the specified MUE after receiving the data request sent by the specified MUE. Therefore, it can be seen that the allocation strategy for ensuring data requests meets the actual situation of data requests in the area served by the MCD, and the MCD feeds back the corresponding request data after receiving the data requests, thereby reducing the corresponding delay and improving user experience.

Description

A data cache method and system technical field [0001] The present invention relates to the field of information technology, and in particular, to a data caching method and system. Background technique At present, with the rapid development of communication network technology, the number of mobile users increases sharply, resulting in the The demand continues to increase, and the data processing volume of the backhaul link of the core network continues to increase, resulting in the pressure on the core network. but elevated. In order to alleviate the pressure of the core network, the data of the core network is generally cached through the content cache. It is first cached in the edge cache server (ECS) or mobile cache device (MCD), so that when the ECS or MCD receives the When the data is requested, the cached data can be directly fed back to relieve the pressure on the core network. Currently in the process of integrating the core network When data is pre-cache...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L67/1001H04L67/566H04L67/568G06N3/08
CPCG06N3/08H04L67/1001H04L67/566H04L67/568
Inventor 徐思雅邵苏杰郭少勇刘鑫王昭赫迟靖烨赵凌霄刘岩
Owner BEIJING UNIV OF POSTS & TELECOMM