Content cache management method based on base station cooperation

A content caching and management method technology, which is applied in the field of content caching management based on base station cooperation, can solve the problems of limited network performance and less consideration of content caching methods in cellular heterogeneous networks, so as to improve the content hit rate and reduce the average access time The effect of delay and effective management

Pending Publication Date: 2019-07-16
CHONGQING UNIV OF POSTS & TELECOMM
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Problems solved by technology

[0004] Although the existing methods can solve some of the existing problems to a certain extent, however, the existing research rarely consider

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  • Content cache management method based on base station cooperation
  • Content cache management method based on base station cooperation
  • Content cache management method based on base station cooperation

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Embodiment Construction

[0029] Embodiments of the present invention are described below through specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification.

[0030] This specific embodiment aims at the problem that in the prior art, in the cache update rule, the base station always replaces the content with the lowest access frequency or the smallest occupied space, resulting in low cache space utilization and cache hit rate, and provides a base station-based Cooperative cache management method, when the cache of the associated base station is full, for the requested content that has not been cached, the associated base station calculates the content cache value based on the content occupied space and access frequency to update the cache, which can improve the hit rate of heterogeneous network cache content and reduce the system Average access delay.

[0031] figure 1 It is a schematic d...

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Abstract

The invention relates to a content cache management method based on base station cooperation, and belongs to the technical field of wireless communication. The method comprises the following steps: requesting a user to initiate a content request message to an associated base station; after receiving the content request message, inquiring a base station cache list, and if the request content is cached in the cache list of the associated base station, the associated base station sending the request content to a request user and updates the base station cache list; if the request content is not cached in the cache list of the associated base station, the associated base station updating an uncached content request information table and obtaining the request content through a core network content server/cooperative base station; and if the associated base station caches the request content, updating the associated base station cache list/uncached content request information table. According to the method, effective management of the base station cache can be realized, the hit rate of the cache content of the heterogeneous network can be improved, and the average access delay of the system is reduced.

Description

technical field [0001] The invention belongs to the technical field of wireless communication, and relates to a content cache management method based on base station cooperation. Background technique [0002] The rapid development of Internet technology and mobile devices such as smartphones has met the diverse needs of users to access multimedia content anytime and anywhere, and has also led to an explosive increase in data traffic. In order to provide users with required content (such as news, video, music) more efficiently and reduce the backhaul pressure from the core network to the base station, wireless caching technology can be used to place some of the content required by users on a near-client device with caching capabilities. , such as a cellular base station (Base Station, BS), etc., to reduce the time delay and energy consumption of users requesting content. [0003] In recent years, there have been researches on the caching technology of cellular networks. For ...

Claims

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Application Information

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IPC IPC(8): H04W28/02
CPCH04W28/0278H04W28/0236
Inventor 柴蓉杜春玲陈前斌
Owner CHONGQING UNIV OF POSTS & TELECOMM
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