FLEXIBLE DISCONTINUOUS TRANSMISSION (DTX) AND DISCONTINUOUS RECEPTION (DRX) IN WIRELESS COMMUNICATION SYSTEM Russian patent published in 2011 - IPC H04W28/10 H04W52/02 

FIELD: information technology.

SUBSTANCE: data traffic sensitive battery-saving approach for user equipment (UE) such as a data packet capable cellphone incorporates flexible discontinuous transmission and reception (DTX-DRX) when in Long Term Evolution (LTE) active mode as dictated by an evolved radio access network (RAN) such as an evolved base node (eNode B). UE device requests are made on an unsynchronised random access channel (RACH). Lengthening duration of DRX and reducing requirements for synchronisation uplink transmissions results in power savings of up to 75%, as well as creating opportunities for reducing interference and for allocating additional time slots for data. Such power saving is compatible with other downlink scheduling proposals, with control channel-less Voice-over-IP (VoIP), and need not target those UE devices in bad radio communication conditions. Legacy UE devices which can interact with the eNode B by being capable of radio resource control (RRC) signalling continue to be compatible.

EFFECT: battery saving.

42 cl, 14 dwg