Abstract
Described herein are various wake-up procedures for user equipments (UEs). A UE may include a low power wake-up radio (LP-WUR) separate from a front end module (FEM). The LP-WUR may remain awake continuously (or at high-frequency intervals) and monitor for a wakeup signal, allowing the FEM to remain powered down in the absence of downlink data. When the LP-WUR detects a wakeup signal configured for the LP-WUR, the LP-WUR may be configured to wake up the FEM to receive incoming downlink data. Various network components may be configured to ensure UEs with LP-WURs receive corresponding wake-up signals.
Technology | Declaration Information | Specification Information | Explicitly Disclosed | Patent Type | |||||
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5G | 27/12/2017 | ISLD-201712-044 | INTEL CORP |
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5G | 12/06/2023 | ISLD-202304-039 | APPLE INC |
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Specification Information
Specification Information
Technologies
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WO2017052596A1 | 5G | 12/06/2023 | ISLD-202304-039 | APPLE INC |
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WO2017052596A1 | 5G | 27/12/2017 | ISLD-201712-044 | INTEL CORP |
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DE112015006954T5 | 5G | 12/06/2023 | ISLD-202304-039 | APPLE INC |
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DE112015006954T5 | 5G | 27/12/2017 | ISLD-201712-044 | INTEL CORP |
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US10492142B2 | 5G | 12/06/2023 | ISLD-202304-039 | APPLE INC |
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US10492142B2 | 5G | 27/12/2017 | ISLD-201712-044 | INTEL CORP |
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Technologies
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Claim
1. A user equipment (UE) comprising:
a first receiver comprising a low power wake-up receiver (LP-WUR) to monitor a downlink channel for a LP-WUR wake-up signal from an eNodeB, the LP-WUR wake-up signal to comprise a narrow-band signal; and a second receiver comprising a front end module (FEM), separate from the LP-WUR, to monitor a physical downlink control channel (PDCCH), the FEM comprising:
transmission circuitry to transmit signal data to the eNodeB indicating the UE includes the LP-WUR;
circuitry to execute a power saving mode (PSM) for the FEM to cease monitoring the PDCCH in response to a period of inactivity; and
circuitry to exit the PSM for the FEM to monitor the PDCCH in response to the LP-WUR receiving the LP-WUR wake-up signal from the eNodeB.
2. The UE of claim 1, wherein the LP-WUR is to monitor a fixed physical resource block (PRB) location on the downlink channel allocated for the LP-WUR wake-up signal.
3. The UE of claim 2, wherein the LP-WUR wake-up signal is modulated according to an on-off keying (OOK) tone.
4. The UE of claim 2, wherein the fixed PRB location is included in a primary frequency band.
5. The UE of claim 2, wherein the fixed PRB location is included in a secondary frequency band.
6. The UE of claim 1, wherein the LP-WUR wake up signal further includes a system architecture evolution (SAE)-Temporary Mobile Subscriber Identity (S-TMSI) identifying the UE.
7. The UE of claim 1, wherein the LP-WUR is to monitor the downlink channel for the LP-WUR wake-up signal periodically according to a first time interval, and the FEM further comprises circuitry to execute a discontinuous reception (DRX) mode for monitoring the PDCCH according to a second time interval, the second time interval less than the first time interval.
8. The UE of claim 1, further comprising:
one or more antennas communicatively coupled to the LP-WUR for monitoring the downlink channel for the LP-WUR wake-up signal from the eNodeB, and communicatively coupled to the FEM to transmit the signal to the eNodeB indicating the UE includes the LP-WUR.
9. The UE of claim 8, wherein the UE comprises a machine-type communications (MTC) device.
10. The UE of claim 8, wherein the one or more antennas comprise a first antenna for monitoring the downlink channel for the LP-WUR wake-up signal from the eNodeB, and an antenna to transmit the signal to the eNodeB indicating the UE includes the LP-WUR module.
11. A non-transitory computer-readable storage medium comprising contents, which when executed by a computing system, cause the computing system to perform operations to:
generate signal data to be transmitted to an eNodeB indicating a user equipment (UE) includes low power wake-up radio (LP-WUR); execute a power saving mode (PSM) for a front end module (FEM) of the UE to cease monitoring a physical downlink control channel (PDCCH) in response to a period of inactivity; and exit the PSM for the FEM in response to the LP-WUR receiving an LP-WUR wake-up signal from an eNodeB via a downlink channel.
12. The non-transitory computer-readable storage medium of claim 11, further comprising contents, which when executed by the computing system, cause the computing system to perform operations to:
execute a discontinuous reception (DRX) mode for monitoring the PDCCH according to a first time interval; wherein the LP-WUR is to monitor the downlink channel for the LP-WUR wake-up signal periodically according to a second time interval, the second time interval greater than the first time interval.
13. The non-transitory medium of claim 11, wherein the UE comprises a machine-type communications (MTC) device.
14. The non-transitory medium of claim 11, wherein the UE comprises a cellular Internet of Things (CIoT) UE.
15. An apparatus for eNodeB comprising:
receiver circuitry configured to:
receive signal data from a mobility management entity (MME) of an evolved packet core (EPC) network identifying downlink data for a user equipment (UE); and
receive signal data from the MME indicating the UE includes a low power wake-up receiver (LP-WUR) and indicating the LP-WUR of the UE is to exit a power saving mode (PSM); and
transmission circuitry configured to:
transmit a wake-up signal to the LP-WUR of the UE for the UE to exit the PSM.
16. The apparatus of claim 15, wherein the signal data indicating the LP-WUR of the UE is to exit the PSM transmitted to the UE is to be modulated according to an on-off keying (OOK) tone.
17. The apparatus of claim 15, wherein the signal data indicating the LP-WUR module of the UE is to exit the PSM comprises an LP-WUR wake-up signal to be included in a pre-determined physical resource block (PRB) location allocated for the LP-WUR wake-up signal, the pre-determined PRB location to comprise at least one of:
a location within a long term evolution (LTE) frequency band; or a location outside the LTE frequency band.
18. The apparatus of claim 17, wherein the fixed PRB location is included in a primary frequency band.
19. The apparatus of claim 17, wherein the fixed PRB location is included in a secondary frequency band.
20. The apparatus of claim 15, wherein the signal data indicating the LP-WUR module of the UE is to exit the PSM comprises an LP-WUR wake-up signal to be included in a narrow frequency band of a downlink channel.
21. The apparatus of claim 15, wherein the signal data received from the MME of the EPC network indicating the LP-WUR of the UE is to exit the PSM comprises a system architecture evolution (SAE)-Temporary Mobile Subscriber Identity (S-TMSI) identifying the UE.
22. The apparatus of claim 15, wherein the wake-up signal further includes data for assisting the UE in fast network entry.
23. The apparatus of claim 22, wherein the data comprises a preamble for non-contention based random access.
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The information in blue was extracted from the third parties (Standard Setting Organisation, Espacenet)
The information in grey was provided by the patent holder
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Explicitly disclosed patent:openly and comprehensibly describes all details of the invention in the patent document.
Implicitly disclosed patent:does not explicitly state certain aspects of the invention, but still allows for these to be inferred from the information provided.
Basis patent:The core patent in a family, outlining the fundamental invention from which related patents or applications originate.
Family member:related patents or applications that share a common priority or original filing.