Leif R. Wilhelmsson

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Carrier aggregation (CA) is introduced in 3GPP LTE Rel-10 [1] to meet the demand for further increased bitrates. While LTE Rel-10 supports simultaneous reception of two carriers either in contiguous intra-band or in inter-band CA configuration , the upcoming LTE Rel-11 will add support for non-contiguous (NC) carriers within bands. Supporting NC CA in(More)
— A combination of receiver windowing and inter-carrier interference (ICI) canceling is proposed for improving the Doppler performance of Orthogonal Frequency Division Multiplex (OFDM) systems. The windowing reduces the ICI, and also reduces the required number of canceled bins. The effect of windowing is analytically derived, and bounds are given on the(More)
— A combination of receiver windowing and inter-carrier interference (ICI) canceling is proposed for improving the Doppler frequency performance of a DVB-H receiver. The windowing reduces the ICI, and enables ICI cancellation of low complexity to give substantial improvements. Bounds for the possible improvements of ICI cancellation are presented and(More)
The different muscle layers at the human uterotubal junction (UTJ) were mechanically separated, and 1-mm wide muscle strips were isolated and mounted in organ chambers for isometric recording of contractile activity. It was found that the adrenergic neurotransmitter noradrenalin elicited an inhibition of the spontaneous phasic activity in the inner(More)