论文标题
网络致密化对非公共URLLC工厂网络性能的影响
Impact of Network Densification on the Performance of a Non-Public URLLC Factory Network
论文作者
论文摘要
传统上，通过在现有的移动通信网络中添加新扇区或网站来致密化，传统上是提高系统覆盖范围和容量的有效方法。即使对于超可靠的低延迟通信（URLLC）服务也是如此，但是不同部署选项的总体情况和可行性将取决于相关的URLLC服务的特征。具有轻松的潜伏期要求的URLLC服务，允许进行多次传输尝试，可以忍受不错的间隙间干扰，同时仍然能够保证所有用户的所需服务质量服务，这使得通过使用omnirectirectional或Directional天线添加新的GNODEB来提高URLLC服务能力。但是，当URLLC服务需要极低的延迟（不允许进行重新召回）时，系统性能就会对间的细胞间干扰非常敏感，这意味着在实践中，GNODEBS应配备横梁成形的天线以达到高水平的URLLC服务能力。最后，主动分布式天线系统可能是在整个所需服务区域确保良好覆盖范围的有效方法。
Densification of the network deployment, for example by adding new sectors or sites within an existing mobile communication network, has traditionally been an efficient way to improve the system coverage and capacity. That will be the case even for the ultra-reliable low-latency communication (URLLC) services, but the overall situation and the feasibility of the different deployment options will depend on the characteristics of the URLLC service in question. URLLC services with relaxed latency requirements, allowing multiple transmission attempts, can tolerate a decent level of inter-cell interference while still being able to guarantee the desired quality-of-service for all users, which makes it possible to improve the URLLC service capacity by adding new gNodeBs with omnidirectional or directional antennas. However, when the URLLC services require extremely low latency that do not allow for retransmissions, the system performance becomes quite sensitive to the inter-cell interference, which means that in practice the gNodeBs should be equipped with beamformed antennas to reach high levels of URLLC service capacity. Finally, an active distributed antenna system could be an efficient way to secure good coverage throughout the desired service area.
