Method and apparatus for enhancing discontinuous reception in wireless systems

摘要

A method of discontinuous reception (DRX) in a wireless transmit receive unit (WTRU) includes the WTRU receiving DRX setting information over a radio resource control (RRC) signal, and the WTRU receiving DRX activation information over medium access control (MAC) signal.

主权项

1. A method implemented by a wireless transmit receive unit (WTRU) for performing discontinuous reception (DRX) while in an RRC_CONNECTED state, the method comprising:
the WTRU receiving DRX setting information from an evolved Node-B (eNB) via a radio resource control (RRC) message, the DRX setting information indicating a length of a minimum active period, wherein the minimum active period corresponds to a minimum amount of time during which the WTRU is active at a beginning of a given DRX cycle; the WTRU monitoring for reception of Layer 1 control signaling from the eNB during the minimum active period of a first DRX cycle, wherein the Layer 1 control signaling indicates whether data is to be transmitted to the WTRU; the WTRU receiving a data indication message during the minimum active period of the first DRX cycle, the data indication message indicating that downlink data is to be transmitted to the WTRU; the WTRU remaining in an awake state beyond the minimum active period of the first DRX cycle based on receiving the data indication message; while awake, the WTRU receiving a DRX activation medium access control (MAC) message; and the WTRU resuming DRX operation in response to receiving the DRX activation MAC message.