Content caching method and base station

Abstract

The invention provides a content caching method and a base station. The content caching method comprises the following steps that: the base station receives a content request of mobile user equipment, and inquires a cached content information table of the base station; when the content request is not hit in the cached content of the base station, a first utility value and a second utility value are calculated; the first utility value is a utility value of the network flow, which is reduced by caching a missing content; the second utility value is a utility value of the network flow, which is increased by replacing the cached content; and, if the first utility value is greater than the second utility value, the missing content is cached. According to the content caching method and the base station disclosed by the invention, caching distributed cooperation of the base station is realized through analytical calculation of user request content characteristics and base station characteristics; the load of a mobile communication network is effectively reduced; and the network access speed and the network utilization rate are increased.

Description

technical field [0001] The present invention relates to the field of information technology, in particular to a method and a base station for buffering content. Background technique [0002] With the rapid deployment of LTE wireless networks and the great abundance of smart terminals and mobile applications, the data traffic of mobile networks has increased rapidly, which has brought a great impact on existing networks. For this reason, deploying caches on the base station side has become an important means to deal with the above challenges. In the current wireless network base station, after the user initiates a content request and receives a response from the service server, the base station determines whether to cache the content. According to a certain strategy, such as access frequency, access time, content popularity and other factors, if the base station finds that the content is cacheable and the content is of great value after being cached, the base station will ca...

AI Technical Summary

Problems solved by technology

However, compared with the fixed network, the number of mobile users served by a single base station is small and has more frequent mobility, and the signaling overhead of centralized technology is relatively large.

Under the condition of limited buffer capacity deployed by a single base station, the mobile access network distributed cache cooperation technology, that is, multiple interconnected caches in the same network domain can cooperate to store high-profile content in a distributed manner, and cooperate to serve content requests. An effective solution, but the distributed cache cooperation for the mobile access network has not yet formed an effective technical solution

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