US Patent Application 18234005. WIRELESS TRANSMIT RECEIVE UNIT (WTRU) REACHABILITY simplified abstract

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WIRELESS TRANSMIT RECEIVE UNIT (WTRU) REACHABILITY

Organization Name

InterDigital Patent Holdings, Inc.

Inventor(s)

J. Patrick Tooher of Montreal (CA)

Paul Marinier of Brossard (CA)

Ghyslain Pelletier of Montreal (CA)

Faris Alfarhan of Montreal (CA)

Aata El Hamss of Laval (CA)

WIRELESS TRANSMIT RECEIVE UNIT (WTRU) REACHABILITY - A simplified explanation of the abstract

This abstract first appeared for US patent application 18234005 titled 'WIRELESS TRANSMIT RECEIVE UNIT (WTRU) REACHABILITY

Simplified Explanation

The patent application describes a wireless transmit/receive unit (WTRU) that uses a discontinuous reception cycle to save power while still receiving/transmitting data.

  • The WTRU has an awake state and a sleep state.
  • In the awake state, the WTRU monitors a specific channel for a certain amount of time.
  • During the remaining time, the WTRU enters a sleep state to reduce power consumption.
  • The WTRU expects to receive one or more transmissions during the awake state before entering the sleep state.
  • The duration of the awake state and subsequent sleep states is determined based on whether the WTRU receives a transmission and the purpose of the transmission.
  • The WTRU can adjust the sleep state timer based on previous sleep state and awake state timer values.


Original Abstract Submitted

A wireless transmit/receive unit (WTRU) may receive/transmit data by employing a discontinuous reception cycle, which may include an awake state and a sleep state. For example, while in an awake state, a WTRU may monitor a PDCCH for a subset of time instances. During the remaining time instances, the WTRU may enter a sleep state, in which the WTRU may switch its receiving circuitry off (e.g., to reduce power consumption). A WTRU may receive (e.g., may expect to receive) one or more transmissions, during an awake state, before entering a sleep state. The durations of an awake state and/or the durations of subsequent sleep states may be determined based on whether the WTRU receives a transmission during the awake state and/or what the transmission was for. The WTRU may modify the value of a sleep state timer based on previous sleep state and/or awake state timer values.

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