Patent ID: 8630643
Filing Date: 2014-01-14
Classification: H04W

Abstract:
1. A method of determining a power value at a user device for subsequent use in cell selection or cell re-selection, the method comprising: determining a first power value at a carrier frequency in respect of a first measurement time interval by determining at least one of a first and second metric for each of at least one channel hypotheses, each channel hypothesis having a hypothetical occupied portion and a hypothetical guard band portion, a first metric based on a power measurement and at least one additional power measurement of the hypothetical occupied portion and a second metric based on a difference between the power measurement and the at least one additional power measurement of the hypothetical occupied portion and a power measurement and at least one additional power measurement of the hypothetical guard band portion; determining whether or not the first power value meets at least one criterion; when the first power value does not meet the at least one criterion, determining at least one additional power value at the carrier frequency in respect of a second measurement time interval; selecting at least one power value from a set of power values that have been determined, the set including the at least one additional power value, wherein selecting the at least one power value includes at least determining a maximum power value from the set of power values that have been determined; determining the power value for the calculation of an RSSI metric for use in cell selection or cell re-selection based on the selected at least one power value.