| CPC H04W 52/0229 (2013.01) [H04W 52/0216 (2013.01); H04W 52/028 (2013.01)] | 19 Claims |
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1. A communications device configured to receive signals from an infrastructure equipment of a wireless communications network, the communications device being configured to switch at a first periodic rate between a primary active operating mode and a primary reduced power operating mode in accordance with a primary discontinuous reception, DRX, operation, the communications device comprising:
a receiver configured to receive signals via a wireless access interface provided by the wireless communications network, and
a controller configured, in combination with the receiver, to:
monitor for signals transmitted by the infrastructure equipment to the communications device during the primary active operating mode,
reduce an operating power of the receiver during the primary reduced power operating mode by reducing a duration of the DRX ON periods in a plurality of phases of successively shorter durations of the DRX ON periods in the primary reduced power operating mode, and
to start, during an instance of the primary active operating mode upon detection of a first downlink transmission from the infrastructure equipment to the communications device, an inactivity timer specifying an inactivity period during which the communications device does not switch into the primary reduced power operating mode,
wherein the communications device is configured, during the inactivity period, to operate in a power consumption optimized mode.
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