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Power Headroom

Power Headroom-related patent applications - as published by the U.S. Patent and Trademark Office (USPTO).


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Method and apparatus for controlling uplink power in wireless communication system
Samsung Electronics Co., Ltd.
June 08, 2017 - N°20170164298

A method and an apparatus for controlling uplink power in a wireless communication system are provided. The method for controlling uplink power of a user equipment (ue) forming a transmission link with a plurality of bss (bss), a power headroom report trigger event by at least one of the plurality of bss is detected. Power headroom information of the ue ...
User terminal, radio base station and radio communication method
Ntt Docomo, Inc.
May 18, 2017 - N°20170142667

The present invention is designed to reduce the decrease of uplink throughput in the event a user terminal connects with a plurality of radio base stations. A user terminal (20) according to an example of the present invention provides a user terminal to connect with a plurality of radio base stations including at least a first radio base station and a ...
Multi-carrier power headroom in a wireless network
Ofinno Technologies, Llc
March 30, 2017 - N°20170094612

A wireless device receives message(s) comprising parameters indicating whether simultaneous pucch and pusch transmission is configured for a primary cell and for a pucch scell. The wireless device transmits a power headroom (ph) report. If the pucch scell is activated, the ph report comprises a first type 2 ph field for the primary cell and a second type 2 ph field ...
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Terminal device, base station device, communication system, control method, and integrated circuit
Sharp Kabushiki Kaisha
March 16, 2017 - N°20170078984

In a terminal device that uses a plurality of cells, the plurality of cells are grouped into a cell group for a first base station device and a cell group for a second base station device, and processing for activation/deactivation of the plurality of cells is performed on a cell in the cell group that receive a control element ...
Power-limit reporting in a communication system using carrier aggregation
Sun Patent Trust
March 02, 2017 - N°20170064649

The invention relates to methods for informing an enodeb on the transmit power status of a user equipment in a mobile communication system using component carrier (cc) aggregation. Furthermore, the invention is also related to the implementation of these methods by hardware and their implementation in software. The invention proposes procedures that allow the enodeb to recognize the power usage ...
Power headroom control element, method of communicating power information from a user equipment, method for ...
Telefonaktiebolaget Lm Ericsson (publ)
February 16, 2017 - N°20170048806

The present invention relates to a power headroom control element for communicating power information from a user equipment (ue) to a base station (bs), a corresponding method, a method for processing received power information at a radio access network (ran) as well as to a user equipment for communicating power information and a base station configured to process received power ...
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Method and apparatus for transmitting information about available power of terminal in mobile communication system
Samsung Electronics Co., Ltd.
February 02, 2017 - N°20170034789

A method and apparatus are provided for transmitting power headroom information by a terminal in a mobile communication system. The method includes receiving, by the terminal, information on an allocated uplink transmission resource; determining whether a path loss has changed more than a threshold, after transmitting last power headroom information, when the terminal has the allocated transmission resource; if the ...
Uplink scheduling apparatus and method based on uplink report in wireless communication system
Samsung Electronics Co., Ltd.
January 19, 2017 - N°20170019867

A method and an apparatus for scheduling uplink transmissions according to a maximum transmission power and power headrooms (phs) reported by a user equipment (ue) are provided. A method for reporting the phs for carriers used by a terminal in a mobile communication system supporting carrier aggregation includes generating a message including the phs along with indicators indicating whether a ...
Method and apparatus for triggering a power headroom report
Nokia Technologies Oy
January 19, 2017 - N°20170019866

Various methods are provided for triggering a power headroom report. One example method may include storing a first pathloss value and a second pathloss value for a first entity and a first pathloss value and a second pathloss value for a second entity, for each of the first entity and second entity, determining whether first pathloss value or second pathloss ...
Method and terminal for transmitting power headroom report in dual connection between terminal and base ...
Lg Electronics Inc.
January 19, 2017 - N°20170019864

One disclosure of the present specification provides a method for receiving downlink data in a wireless communication system supporting 256 qam. The method for receiving downlink data in a wireless communication system supporting 256 qam comprises the steps of: receiving configuration information about power back-off; receiving downlink data transmitted on the basis of the configuration information about power back-off; and demodulating the ...
Power headroom reporting with dual connectivity
Intel Ip Corporation
January 12, 2017 - N°20170013571

Embodiments described herein relate generally to a communication between a user equipment (“ue”) and a plurality of evolved node bs (“enbs”). A ue may be adapted to operate in a dual connected mode on respective wireless cells provided by first and second enbs. The ue may be adapted to estimate respective power ...
Power headroom reporting for low cost machine type communication
Qualcomm Incorporated
January 12, 2017 - N°20170013570

Enhanced power headroom reporting (ephr) for mtc devices. The ephr techniques may include configuration and triggering of reporting when a corresponding change to a coverage enhancement (ce) level is likely to result. For example, ephr may be based on parameters more directly related to ph change instead of pl changes. Mtc devices may be configured with multiple thresholds for ephr ...
Uplink power control method, user equipment, and base station
Huawei Technologies Co., Ltd.
January 12, 2017 - N°20170013566

The present invention provides an uplink power control method, user equipment, and a base station. The user equipment includes: a receiver, configured to receive first radio resource control protocol rrc configuration information sent by a first base station, where the first rrc configuration information includes a parameter used to calculate a power headroom ph that is of the ue and ...
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Apparatus and method for transmitting a power headroom report in a wireless communication system supporting ...
Lg Electronics Inc.
January 05, 2017 - N°20170006559

An apparatus and method for transmitting a power headroom report in a communication system supporting multi-carriers are disclosed, by which a user equipment is enabled to transmit the power headroom report. According to the present invention, a user equipment calculates a power headroom for each of at least one activated serving cell using a maximum transmission power of the user ...
Power headroom reporting method and device for wireless communication system
Samsung Electronics Co., Ltd.
December 22, 2016 - N°20160374032

Methods and apparatus are provided for reporting a power headroom (ph) of a user equipment (ue) in a wireless communication system having a plurality of aggregated uplink carriers. A method includes receiving a configuration message to configure at least one uplink carrier; triggering a power headroom report (phr) for a first uplink carrier if a predetermined event occurs; detecting an ...
Method for configured maximum output power reporting and user equipment
Fujitsu Limited
December 08, 2016 - N°20160360491

A base station configured for carrier aggregation, includes: a receiver; and processing circuitry coupled to the receiver and configured to: allocate to a user equipment uplink resources for at least one activated serving cell configured with an uplink carrier, the uplink resources for new transmission and the allocated uplink resources may accommodate a power headroom report, and obtain, responsive to ...
Method and device for reporting power headroom report
Zte Corporation
November 17, 2016 - N°20160337989

The embodiments of the present document provide a method and device for reporting a power headroom report, which relates to the field of mobile communications, and solves the problem of lacking a triggering and sending mechanism for a phr of the dual-connectivity terminal in the related art. The method includes: a terminal triggering to report a phr when detecting that ...
Power headroom reporting for mtc devices in enhanced coverage mode
Panasonic Intellectual Property Corporation Of America
November 10, 2016 - N°20160330698

The present disclosure relates various embodiments for improving power headroom reporting for ues being in an enhanced coverage mode. The ue may be configured to always transmit a virtual power headroom report to the enb, when operating in the enhanced coverage mode. Or, the ue may be configured to always transmit a virtual power headroom report to the enb, when ...
Physical uplink control channel management for pucch secondary cell in carrier aggregation
Qualcomm Incorporated
November 10, 2016 - N°20160330697

Methods, systems, and devices for wireless communication are described. A user equipment (ue) may be configured for carrier aggregation (ca) configuration with a primary cell (pcell) and a physical uplink control channel (pucch) enabled secondary cell (scell). The ue may receive a message to activate a deactivated pucch-enabled scell and may perform a pucch power initialization procedure, which may include ...
Method and apparatus for controlling power headroom report and hybrid automatic retransmission in mobile communication ...
Samsung Electronics Co., Ltd.
November 10, 2016 - N°20160329993

According to one embodiment of the present invention, suggested art a method for reporting a power headroom report (hereinafter, phr) of a terminal and an apparatus of the terminal, the method comprising the steps of: determining whether the terminal is operated in dynamic time division multiple access (hereinafter, tdd, time division duplexer) mode; determining whether the terminal receives service from ...
Uplink power headroom reporting for carrier aggregation
Interdigital Patent Holdings, Inc.
October 20, 2016 - N°20160309426

A method for reporting power headroom is disclosed. Power headroom may be reported across all carriers (wideband), for a specific carrier, or for a carrier group. The formula used to calculate the power headroom depends on whether the carrier (or a carrier in the carrier group) has a valid uplink grant. If the carrier or carrier group does not have ...
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