Communication method, device and system

Abstract

The embodiments of the present application provide a communication method, device, and system, which can more reasonably and flexibly transmit different data of services. The method includes: the session management network element determines the first access network type of the first service, and sends the first access network type. The access network device receives the access network type of the first service and first information, the first information includes the first downlink address of the first service or the first identification parameter of the first service, and the type of the access network device and the first In the case of the same type of access network, if the first information is the first first downlink address, the access network device sends a message carrying the first downlink address to the first user plane network element for use in the first user plane network The first message for establishing the transmission path of the first data of the first service between the element and the access network device; if the first information is the first identification parameter, the access network device identifies the downlink data as the first identification parameter according to the first identification parameter When the first data of the service is received, the downlink data is sent.

Description

technical field [0001] The present application relates to the technical field of communication, and in particular to a communication method, device and system. Background technique [0002] H.264 / H.265 supports scalable video coding (scaled video coding, SVC) / high efficiency video coding (high efficiency video coding, HEVC) video stream layered transmission, where the basic layer data is the video needs to be Reliably received content, enhancement layer data can further refine the content of base layer data (eg higher resolution). In short, the data of the basic layer belongs to "sending charcoal in the snow", and the data of the enhancement layer belongs to "icing on the cake". [0003] In the prior art, the same type of base station is usually used to transmit the basic layer data and enhancement layer data in the video stream. On the one hand, because the base station needs to carry many services, the load of the base station is too large, and it cannot provide all ser...

AI Technical Summary

Problems solved by technology

[0003] In the prior art, the same type of base station is usually used to transmit the basic layer data and enhancement layer data in the video stream. On the one hand, because the base station needs to carry many services, the load of the base station is too large, and it cannot provide all services for each service. required transmission resources, resulting in poor service data transmission quality, thereby reducing user experience; on the other hand, the resources provided by the base station need to meet the transmission resources required for different types of data of the same service There are many transmission resources allocated by the service. However, when the base station transmits a certain type of data of the service at a certain moment, it may not need to use all the resources allocated for the service, resulting in waste of resources; Different types of data for business, less flexibility

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