Uplink rate enhancement algorithm for 5G network in intelligent mine
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摘要: 智慧矿山中远程控制、高清视频、无人矿车和无人机等5G应用场景对无线网络上行速率提出了新的要求,但目前5G网络上行速率不足导致智慧矿山业务受限,而现有5G网络上行速率增强算法提高上行速率的幅度有限。针对上述问题,提出了一种智慧矿山5G网络上行速率增强算法,通过采用上行辅助技术在C-Band高频段上叠加Sub-3 GHz低频段来实现频谱资源聚合,通过频域资源分配和时域资源调度提高网络上行速率。在中近点区域,基站进行上行数据调度时,用户设备在C-Band频段上行时隙使用3.5 GHz频段发送上行数据,在C-Band频段下行时隙使用1.8/2.1 GHz频段发送上行数据;在远点区域,3.5 GHz频段上行受限,用户设备只使用1.8/2.1 GHz频段发送上行数据。测试结果表明,该算法分别提升矿山近点区域、中点区域和远点区域上行速率17%,41%,213%,网络平均上行速率得到明显提升。Abstract: The 5G application scenarios such as remote control, high-definition video, unmanned mine car and unmanned aerial vehicle in intelligent mine put forward new requirements for the uplink rate of wireless network. However, the current 5G network uplink rate is insufficient, which leads to the limitation of intelligent mine business. And the existing 5G network uplink rate enhancement algorithm has limited range to improve the uplink rate. In order to solve the above problems, this paper proposes an uplink rate enhancement algorithm for 5G network in intelligent mine. By using supplementary upload technology, the spectrum resource aggregation is realized by overlaying Sub-3 GHz low band on the high band of C-Band, and the uplink rate of the network is improved by frequency domain resource allocation and time domain resource scheduling. In the middle-near point area, when the base station performs uplink data scheduling, the user equipment uses the 3.5 GHz frequency band to send uplink data in the uplink time slot of the C-Band frequency band, and uses the 1.8/2.1 GHz frequency band to send uplink data in the downlink time slot of the C-Band frequency band. In the far point area, the 3.5 GHz frequency band uplink is limited, and the user equipment only uses the 1.8/2.1 GHz frequency band to send uplink data. The test results show that the algorithm improves the mine near-point area, middle-point area and far-point area uplink rate by 17%, 41% and 213% respectively, and the average network uplink rate is significantly improved.
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Key words:
- intelligent mine /
- 5G /
- uplink rate /
- spectrum overlay /
- frequency domain allocation /
- time domain scheduling
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