主权项 |
1. A method (700) performed at a radio network node (410) corresponding to a cell of interest (420) in a wireless network (400), the radio network node comprising a processor configured to execute instructions store in memory, the method (700) comprising:
estimating (710), by the processor, a grant utilization probability pgrant(t1) based at least on a grant utilization probability estimate {circumflex over (p)}grant(t0) and an interference-and-noise sum estimate {circumflex over (P)}other(t0)+{circumflex over (P)}N(t0) applicable at a time t0 to obtain a grant utilization probability estimate {circumflex over (p)}grant(t1) applicable at a time t1, wherein t1−t0=T>0; estimating (720), by the processor, an interference-and-noise sum Pother(t1)+PN(t1) based at least on the grant utilization probability estimate {circumflex over (p)}grant(t1) and the interference-and-noise sum estimate {circumflex over (P)}other(t0)+{circumflex over (P)}N(t0) to obtain an interference-and-noise sum estimate {circumflex over (P)}other(t1)+{circumflex over (P)}N(t1) applicable at the time t1; and estimating (730), by the processor, an other cell interference Pother(t1) based at least on the interference-and-noise sum estimate {circumflex over (P)}other(t1)+{circumflex over (P)}N(t1) and a thermal noise estimate {circumflex over (P)}N(t1) to obtain an other cell interference estimate {circumflex over (P)}other(t1) applicable at the time t1, wherein the grant utilization probability pgrant(t) expresses a relationships between radio resource grants scheduled to one or more cell terminals and radio resource grants used by the same cell terminals applicable at a time t, each cell terminal being a wireless terminal in the cell of interest, and the grant utilization probability estimate {circumflex over (p)}grant(t) being an estimate thereof, wherein the interference-and-noise sum Pother(t)+PN(t) expresses a sum of undesired signals, other than an own cell load Pown(t), applicable at the time t, and the interference-and-noise sum estimate {circumflex over (P)}other(t)+{circumflex over (P)}N(t) being an estimate thereof, wherein the own cell load Pown(t) expresses a sum of signals due to wireless activities in the cell of interest applicable at the time t, wherein the other cell interference Pother(t) expresses a sum of interferences present in the cell of interest due to wireless activities applicable at the time t in one or more cells other than in the cell of interest, and the other cell interference estimate {circumflex over (P)}other(t) being an estimate thereof, and wherein a thermal noise PN(t) expresses a sum of undesired signals present in the cell of interest at the time t other than the own cell load Pown(t) and other than the other cell interference Pother(t), and the thermal noise estimate {circumflex over (P)}N(t) being an estimate thereof. |