US 10,219,228 B2Granted

Power headroom reporting with channel selection

AssigneeIntel IP Corporation

InventorsNarayan Vishwanathan, Yujian Zhang, Hong He, Seunghee Han, Youn Hyoung Heo

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Abstract

Systems, apparatus, user equipment (UE), evolved node B (eNB), and methods are described for generating an extended power headroom report (ePHR) based on an uncertainty associated with a physical downlink control channel communication granting an uplink grant for a physical uplink shared channel communication when the system is configured for simultaneous physical uplink shared channel and physical uplink control channel communications. Some embodiments are structured to generate the ePHR using a type 2 report regardless of the uncertainty associated with the ePHR, while other embodiments generate the ePHR using a reference format. In some embodiments, a UE communicates a timing field with a UE capability communication indicating whether the UE meets timing requirements to avoid uncertainty in ePHR communications.

Claims18

Dependent claims

An apparatus of a user equipment (UE), the apparatus comprising:

a memory configured to store a power headroom report;
and
control circuitry configured to:
encode simultaneous physical uplink shared channel (PUSCH) and physical uplink control channel (PUCCH) communications;
detect a first physical downlink control channel (PDCCH) transmission comprising a first uplink grant associated with a first PUSCH transmission, wherein the first PUSCH transmission is associated with the power headroom report;
detect whether the UE is able to determine if a first PUCCH transmission is simultaneously scheduled with the first PUSCH transmission;
generate the power headroom report as a first power headroom report based on an expected transmission if the UE is able to determine that the first PUCCH transmission is simultaneously scheduled with the first PDCCH;
generate the power headroom report as a second power headroom report that reserves power overhead for the first PUCCH transmission and is different from the first power headroom report if the UE is not able to determine if the first PUCCH transmission is simultaneously scheduled with the first PUSCH transmission, wherein the second power headroom report is generated using:
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and
encode the first PUSCH transmission with the power headroom report for communication to an evolved node B (eNB).

114 more elements

A non-transitory computer readable medium comprising instructions that, when executed by one or more processors, configure a user equipment (UE) to:

encode physical uplink shared channel (PUSCH) communications on a first carrier frequency simultaneous with physical uplink control channel (PUCCH) communications on a second carrier frequency, the PUCCH communications comprising a first PUCCH transmission;
detect a first physical downlink control channel (PDCCH) transmission comprising a first uplink grant associated with a first PUSCH transmission, wherein the first PUSCH transmission is associated with a power headroom report;
detect whether the HE is able to determine if the first PUCCH transmission is simultaneously scheduled with the first PUSCH transmission;
generate the power headroom report based on as a first power headroom report based on expected transmissions if the UE is able to determine if the first PUCCH transmission is simultaneously scheduled with the first PUSCH transmission;
generate the power headroom report as a second power headroom report that reserves power overhead for the first PUCCH transmission and is different from the first power headroom report if the UE is not able to determine if the first PUCCH transmission is simultaneously scheduled with the first PUSCH transmission, wherein the second power headroom report is generated using:
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;
and
encode the first PUSCH transmission with the power headroom reporta.

111 more elements

Dependencies are inferred from the claim text.

Facts

Application: 15/540,923Filed 18 Dec 2015 · us provisional application
Priority: 29 Jan 2015
Published: US 2018/0007641 A14 Jan 2018
Granted: 26 Feb 2019
Term ends: Not estimatedThe source records don’t support an estimate.

Classification3 codes

H04W 52/365
With a discrete range or set of values, e.g. step size, ramping or offsets: power headroom reporting
H04W 72/23
Control channels or signalling for resource management: in the downlink direction of a wireless link, i.e. towards a terminal
H04W
Wireless communication networks