| 摘要 |
A system (120) and method (135, 145) for reducing signaling overhead related to scheduling of uplink and downlink radio resources to wireless devices such as sensors or Machine-to-Machine, M2M, devices (122) that are primarily stationary in a cellular network (124). Time-frequency channel conditions have a much lower variance for these stationary devices as compared to other mobile devices in the network. Hence, the (semi)stationary channel can be estimated over time with the help of statistical methods and machine learning techniques, and stationary devices can be instructed to stop reporting uplink and/or downlink channel-related information to the network until further notice. When performance degradation is noticed by the base station (126), the scheduler (239) may instruct the device to resume its channel condition reporting. This solution also reduces the energy consumed within the stationary devices due to significant reductions in the number of channel measurements, their processing, and reporting. |
