Cross-Layer Transmission Optimization Technique Supporting URLLC

Ultra-reliable and low-latency communication (URLLC) is one of the most important communication scenarios in the next generation cellular networks. However, there are many challenges in the optimization of resource allocation in URLLC. In order to control the delay and packet loss caused by queuing and transmission, a cross-layer Transmission optimization Technique was proposed. Through simulation, it is verified that the technique optimizes the transmission power allocation and packet loss mechanism related to queuing status and channel status information, and can minimize the required BS maximum transmission power. The cross-layer transmission optimization technique can effectively support the application of URLLC.