Traffic Offload Guideline and Required Year of the 50% Traffic Offloading
DOI:
https://doi.org/10.13052/jicts2245-800X.212Keywords:
Traffic offloading to microcell, Offload guideline, Radio base station cost minimization, 3GPP TS LIPA SIPTOAbstract
Smart Phone and tablet terminals are widely accepted into mobile society and support wireless cloud service effectively. Terminals generally adopt flat rate tariff and the traffic is increasing rapidly. To solve this problem, new technology developments and new spectrum resource allocations and assignments are intensively executed. However in quite near future, traffic will overcome this action.This paper proposes the traffic offloading to microcells and give numerical guideline of offloading ratio that minimize the total radio base station cost under the existing spectrum resource allotment. First, offload guideline is derived based on the Japanese congested area case study in Shibuya ward, and this guideline is translated and generalized to global circumstances. Using the guideline, the required offloading year is calculated for the high population cities or wards in the world. From the results of the analyses, it is shown that the traffic offloading to microcell is necessary in near future. This result is valuable and inevitable to minimize increasing spectrum allotment to the existing mobile service. To monitor the offload ratio, it is better to analyze social bigdata and the carrier’s bigdata. In the final part, example of Draft Question for ITU-R is proposed.
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