| 摘要 |
A method for data transmission, contemplates calculating a cell-load ratio by: <maths id="MATH-US-00001" num="00001"> <math overflow="scroll"> <mrow> <mrow> <msub> <mi>r</mi> <mrow> <mi>cl</mi> <mo>,</mo> <mi>n</mi> </mrow> </msub> <mo>=</mo> <mrow> <mrow> <mrow> <mo>(</mo> <mrow> <mn>1</mn> <mo>-</mo> <mi>alpha</mi> </mrow> <mo>)</mo> </mrow> <mo>.</mo> <msub> <mi>r</mi> <mrow> <mi>cl</mi> <mo>,</mo> <mrow> <mi>n</mi> <mo>-</mo> <mn>1</mn> </mrow> </mrow> </msub> </mrow> <mo>+</mo> <mfrac> <msub> <mi>d</mi> <mi>n</mi> </msub> <msub> <mi>S</mi> <mi>n</mi> </msub> </mfrac> </mrow> </mrow> <mo>,</mo> </mrow> </math> </maths> where rcl,n-1 is a cell-load ratio calculated in a previous stage, rcl,n is an instant cell-load ratio, alpha is a forgetting factor, dn is an instantaneous cell load, and Sn is a frame capacity; and broadcasting the calculated cell-load ratio by carrying the cell-load ratio in a designated message. Methods of a cell selection and a handover for a subscriber which are initiated by a subscriber are in dependence upon both of the cell-load ratio and the signal strength provided by the base stations.
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