Multicast resource distribution and transmission method for scalable video in system with multiple base stations

Abstract

The invention discloses a multicast resource distribution and transmission method for a scalable video in a system with multiple base stations. The multicast resource distribution and transmission method is characterized by comprising the following steps that: (1), mobile equipment in one cellular cell receives data transmitted from different base stations; (2), a video flow is divided into a base layer and an enhancement layer; (3), a base station control centre selects one proper transmission base station for each video layer and determines which modulation coding manners are used; and (4), the multiple base stations transmit the video layers according to the appointed modulation coding manners and calculate the total number of the video layers received by the mobile equipment in the system and the utility value of the system. According to the invention, spectrum resources are effectively utilized; the utility value of the whole system is increased; the overall throughput of a network environment is effectively increased; and thus, the better video service quality is provided for users.

Description

technical field [0001] The invention relates to the field of wireless communication, in particular to a multicast resource allocation and transmission method of scalable video in a multi-base station system. Background technique [0002] With the development of telecommunication technology, 3G and 4G technologies have been used for video on demand, online video, online game IPTV, etc. The next-generation wireless communication technology 5G is oriented to 2020. The overall wireless mobile network needs to have 1000 times the mobile traffic provision capability. The throughput per unit area needs to be 1000 times or even higher than the current 4G (above 100Gbps / km2). Among them, video services account for 79% of the total market traffic. Therefore, in order to improve the overall performance of the cellular network, improve the utilization rate of the increasingly scarce spectrum resources, and meet the requirements of equipment for transmission rates, related technologies ...

AI Technical Summary

Problems solved by technology

[0009] However, all the above studies on multi-base station cooperative systems are only for transmission under multi-base station and multi-cell, that is, only one base station exists in the same area, and multiple base stations cooperate in multiple cells, and different base stations use the same frequency band resource , and there will be data transmission interference between multiple base stations, and for the terminal, each user can only be covered by one base station

However, in an actual network system, a cell can often be covered by multiple different base stations, and different terminal equipment can receive service data transmitted by different base stations. much research

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