Neighbour Cell Quality Measurement in a Telecommunications System
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Accused Products
Abstract
The present invention relates to methods and arrangements for neighbour cell quality measurements using silent resource element (RE) grids, and as well to a silent RE grid.
74 Citations
66 Claims
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1-34. -34. (canceled)
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35. A first method, executed in a first network node of a wireless communication system, for measuring neighbor cell quality for mobility purposes, the method comprising:
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deriving a cell-specific silent grid of a neighbor cell whose quality is to be measured, the cell-specific silent grid comprising resource elements having no data allocation; measuring signal interference over said grid during a measurement period; and estimating a quality of the neighbor cell based on the measured signal interference. - View Dependent Claims (36, 37, 38, 39, 40, 41, 42, 43, 44)
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45. A first arrangement in a first network node, configured to:
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derive a cell-specific silent grid of a neighbor cell to measure a quality of the neighbor cell, the cell-specific silent grid comprising data resource elements with no data allocation; measure an inter-cell interference during said silent grid over a measurement period; and estimate the quality of the neighbor cell based on the measured signal interference. - View Dependent Claims (46, 47, 48, 49, 50, 51, 52, 53, 54)
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55. A second method executed in a second network node of a wireless communication system, for configuring a cell-specific silent grid for use in neighbor cell quality measurements by a first network node of the wireless communication system, wherein the method comprises at least one of the following steps:
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configuring at least one of the resource elements in said cell-specific silent grid to have no data allocation, thereby achieving a cell-specific silent grid; configuring at least some of the resource elements in said cell-specific silent grid which can be used for data transmission to have no data allocation; randomizing the cell-specific silent grid in consecutive, in frequency and time, resource blocks;
orchanging the cell-specific silent grid randomly, in frequency and time. - View Dependent Claims (56, 57, 58, 59, 60)
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61. A second arrangement in a second network node of a wireless communication system, said arrangement comprising at least one processor configured to:
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configure a cell-specific silent grid, for use in neighbor cell quality measurements by a first network node of a wireless communication system; configure at least one of the resource elements in said cell-specific silent grid to have no data allocation, thereby achieving a cell-specific silent grid; configure at least some of the resource elements in said cell-specific silent grid which can be used for data transmission, to have no data allocation, thereby achieving a cell-specific silent grid, randomize said cell-specific silent grid in consecutive, in frequency and time, resource blocks, change said cell-specific silent grid randomly, in frequency and time. - View Dependent Claims (62, 63, 64, 65, 66)
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Specification