Localised and distributed scheduling control method and apparatus

摘要

The present invention provides for a method of controlling selection of a localised scheduling scheme or a distributed scheduling scheme within an OFDMA downlink and including the step of estimating a fading characteristic and initiating switching between the scheduling schemes responsive to the result of the said estimation, wherein the fading characteristic can comprise one of fading rate or fading type, and wherein the invention can provide for such estimating functionality within a mobile radio communications device.

主权项

1. A mobile radio communications device which establishes network connection with an OFDMA downlink channel comprising:
a processor configured to:
estimate a signal-fading characteristic;send a request to the network without sending a result of the estimation to cause initiation of switching between a localized scheduling scheme and a distributed scheduling scheme, the request being responsive to the result of the estimation; andreceive parameters from the network comprising:(i) a threshold for maximum difference of signal-noise ratio measurement of pilot symbols within a resource block;(ii) a threshold for maximum number of resource blocks in which the maximum difference of signal-noise radio measurements is greater than threshold value (i);(iii) a threshold for fading variation per sub-frame of a pilot symbol; and(iv) a threshold for a net number of pilot symbols on which fading variation per sub-frame exceeds threshold value (iii).