Ground base station, multicast satellite resource allocation method and communication system

Abstract

The invention discloses a ground base station, a multicast satellite resource allocation method and a communication system, and the method comprises the steps: carrying out the subgroup division of user terminals according to a channel quality index CQI value for the user terminals of the same multicast satellite; according to the CQI value of each subgroup user terminal, allocating a modulation and coding mechanism (MCS) service of a corresponding level to each subgroup; calculating the resource allocation weight of the MCS services of each level according to the distributed minimum data rateof the MCS services of each level; and according to the resource allocation weight of the MCS service allocated to each subgroup, respectively calculating the number of resource blocks RB allocated to each subgroup. The wireless resource management is simple, the higher QoS can be ensured, and the resource distribution fairness can be met.

Description

technical field [0001] The invention relates to the technical field of wireless communication, in particular to a resource allocation method and a communication system for ground base stations and multicast satellites. Background technique [0002] With the development of wireless communication technology, more and more users hope to enjoy the same communication service whether at home, in remote mountainous areas, at sea or in the air. Especially in the coming 5G era, the demand for data transmission is expected to reach 1,000 times the current level, and 2 / 3 of the traffic is multimedia services. Multimedia content distribution services often have a large number of users, so the frequency bandwidth and resources occupied are relatively large, and the key technical indicators of future 5G require that users can successfully access the network no matter where they are, but only relying on the current spectrum available for ground mobile and Can not meet the needs of such a ...

AI Technical Summary

Problems solved by technology

Although the random allocation method achieves long-term fairness (this fairness is more suitable for file transmission), since not all users can be served in every time slot, this method cannot achieve short-term fairness, and short-term fairness More important in streaming application services

[0013] To sum up, the existing D2D technology applied to the satellite networking system has a very complex wireless resource management problem; while the existing MCS allocation method applied to the satellite networking system cannot guarantee a high QoS, or cannot achieve The problem of short-run fairness

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