Sidelink discontinuous reception procedures
AssigneeKoninklijke Philips N.V.
InventorsThomas Fehrenbach, Baris Göktepe, Sarun Selvanesan, Thomas Wirth, Thomas Schierl, Cornelius Hellge
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Abstract
A user device, UE, for a wireless communication system is described. The wireless communication system includes a plurality of user devices, UEs. The UE receives a transmission from one or more further UEs over a sidelink, SL. The UE operates in a Discontinuous Reception, DRX, mode. The UE is to enter an inactive mode or sleep mode if a certain criterion is met.
Claims59
A device comprising:
- a processor circuit and a memory circuit, wherein the memory is arranged to store instructions for the processor circuit,
- wherein the processor circuit is arranged to receive at least one transmission from at least one second device over a sidelink,
- wherein the processor circuit is arranged to operate in a Discontinuous Reception mode,
- wherein the device is arranged to enter an inactive mode or sleep mode if a criterion is met.
A device comprising:
- a processor circuit and a memory circuit, wherein the memory is arranged to store instructions for the processor circuit,
- wherein the processor circuit is arranged is to transmit at least one transmissions to at least one second device over a sidelink
- wherein the at least one second device is operating in a Discontinuous Reception mode,
- wherein the processor circuit is arranged is to indicate to the at least one second device at least one end of transmissions so as to enable the at least one second device to enter an inactive mode or sleep mode.
A device comprising:
- a processor circuit and a memory circuit, wherein the memory is arranged to store instructions for the processor circuit,
- wherein the processor circuit is arranged is to transmit a plurality of transmissions to at least one second device over a sidelink,
- wherein the at least one second device is operating in a Discontinuous Reception mode, each of the plurality of transmissions comprising at least an initial transmission,
- wherein the processor circuit is arranged is to transmit the plurality of transmissions to the at least one second device such that more than at least one of the plurality of transmissions occur within an ON duration of the Discontinuous Reception cycle of the at least one second device.
A device comprising:
- a processor circuit and a memory circuit, wherein the memory is arranged to store instructions for the processor circuit,
- wherein the processor circuit is arranged is to receive a transmission from at least one second device over a sidelink,
- wherein the processor circuit is arranged is to operate in a Discontinuous Reception mode,
- wherein the device is arranged is to be active during a time,
- wherein the time depends on at least one criteria.
A user device comprising:
- a processor circuit and a memory circuit, wherein the memory is arranged to store instructions for the processor circuit,
- wherein the processor circuit is arranged to communicate with at least one second device over a sidelink,
- wherein the processor circuit is arranged to configure the at least one second device to operate in a Discontinuous Reception mode,
- wherein the processor circuit is arranged to determine a Discontinuous Reception configuration for the at least one second device based on at least one criteria.
A user device comprising:
- a processor circuit and a memory circuit, wherein the memory is arranged to store instructions for the processor circuit,
- wherein the processor circuit is arranged to receive a transmission from at least one second device over a sidelink,
- wherein the processor circuit is arranged to operate in a Discontinuous Reception mode,
- wherein the processor circuit is arranged to be active during an active time during a Discontinuous Reception cycle,
- wherein the processor circuit is arranged to decode or skip decoding a transmission in response to at least one criteria.
A device comprising:
- a processor circuit and a memory circuit, wherein the memory is arranged to store instructions for the processor circuit,
- wherein the processor circuit is arranged to communicate with at least one second device over a sidelink
- wherein the at least one second device operating in a Discontinuous Reception mode,
- wherein the processor circuit WE is arranged to transmit at least one Hybrid Automatic Repeat Request enabled transmissions to the at least one second device during an ON duration of a Discontinuous Reception cycle of the at least one second device, and
- wherein the processor circuit is arranged to hold back the Hybrid Automatic Repeat Request enabled transmission until the next ON duration of the at least one second device and to transmit the Hybrid Automatic Repeat Request enabled transmission during the next ON duration of the at least one second device.
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A method for operating a device comprising:
- receiving a transmission from at least one second device over a sidelink;
- operating in a Discontinuous Reception mode;
- and
- entering an inactive mode or sleep mode if a criterion is met.
A method for operating a user device comprising:
- transmitting at least one transmissions to at least one second device over a sidelink wherein the at least one second device is operating in a Discontinuous Reception mode;
- and
- indicating to the at least one second device an end of the at least one transmissions so as to enable the at least one second device to enter an inactive mode or sleep mode.
A method for operating a device comprising:
- transmitting a plurality of transmissions to at least one second device over a sidelink
- wherein the at least one second device is operating in a Discontinuous Reception, mode,
- wherein each of the plurality of transmissions comprise at least an initial transmission;
- and
- wherein the plurality of transmissions are transmitted to the at least one second device such that more than at least one of the initial transmissions fall within an ON duration of the Discontinuous Reception cycle of the at least one second device.
A method for operating a device comprising:
- receiving a transmission from at least one second device over a sidelink;
- operating in a Discontinuous Reception mode;
- and
- staying active during a active time,
- wherein the active time depends on at least one criteria.
A method for operating a device comprising:
- communicating with at least one second device over a sidelink;
- and
- configuring at least one second device to operate in a Discontinuous Reception mode;
- and
- determining a Discontinuous Reception configuration for at least on second device based on at least one criteria.
A method for operating a device comprising:
- communicating with at least one second device over a sidelink;
- operating in a Discontinuous Reception mode, wherein the device is active during an active time;
- and
- decoding or skipping decoding a transmission in response to at least one criteria.
A method for operating a device comprising:
- communicating with at least one second device over a sidelink;
- operating in a Discontinuous Reception mode;
- transmitting at least one Hybrid Automatic Repeat Request enabled transmissions to the at least one second device during an ON duration of a Discontinuous Reception cycle of the at least one second device;
- and
- holding back the Hybrid Automatic Repeat Request enabled transmission until the next ON duration of the at least one second device and transmitting the Hybrid Automatic Repeat Request enabled transmission during the next ON duration of the at least one second device in response to not receiving a Hybrid Automatic Repeat Request feedback.
Dependencies are inferred from the claim text.