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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 for triggering power headroom reporting in a dual connectivity system and a device therefor
Lg Electronics Inc.
August 03, 2017 - N°20170223642

A method for a user equipment (ue) operating in a wireless communication system. The ue configures a radio bearer comprising a first medium access control (mac) entity and a second mac entity. The ue triggers a power headroom reporting (phr) in the first mac entity if a prohibitphr-timer of the first mac entity expires or has expired when the first ...
Methods, apparatus and systems for handling additional power backoff
Interdigital Patent Holdings, Inc.
August 03, 2017 - N°20170223641

Methods, apparatus and systems are described for a wireless transmit/receive unit (wtru) to manage its transmission power. A power headroom report (phr) may be triggered based on changes to backoff or the impacts of backoff. Additional backoff may be used to calculate a maximum output power of the wtru and may be indicated by a domination indicator to network ...
Method, device and system for power for reporting headroom report in dual connectivity
Zte Corporation
July 27, 2017 - N°20170215156

The disclosure discloses a reporting method, device and system for a power headroom report (phr) in dual connectivity. A first evolved node b (enb) and a second enb establish split data radio bearers (drbs) with a user equipment (ue), and transmit an indication for indicating change in uplink transmission to the ue; the ue determines the change in the uplink ...
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Power headroom report in a wireless device with carrier aggregation
Ofinno Technologies, Llc
July 13, 2017 - N°20170201955

A wireless device transmits a power headroom report media access control control element (phr mac ce). The phr mac ce comprises a presence field comprising a plurality of presence bits. The presence field is of a fixed size of one octet when up to seven of the one or more secondary cells are each configured with a cell index having ...
Method for signaling control information, and apparatus therefor
Lg Electronics Inc.
July 06, 2017 - N°20170196005

A method is provided for transmitting a power headroom report at a user equipment (ue) in a wireless communication system. The ue configures a first cell group having a primary cell (pcell) and a second cell group having one or more secondary cells (scells). The ue transmits the power headroom report. If the first cell group and the second cell ...
Method and apparatus for controlling uplink power in a wireless access system
Lg Electronics Inc.
June 29, 2017 - N°20170188315

A method and a user equipment (ue) for receiving a power headroom report in a wireless access system that supports a carrier aggregation are discussed. The method according to an embodiment includes transmitting by an enb to a ue an uplink transmission grant allocating uplink resources on a predetermined subframe in an anchor uplink component carrier (ul cc); and receiving ...
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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 ...
Power headroom calculation apparatus and a power headroom calculation method
Sun Patent Trust
March 23, 2017 - N°20170086200

Provided is an integrated circuit that calculates a power headroom (phr) and that can preclude the recognition mismatch in which the reference formats of different ul grants are recognized between a wireless communication terminal apparatus and a wireless communication base station apparatus. For the phr calculation of a pusch in a cc in which no ul grant is present, a ...
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 ...
Method for determining transmission power for direct communication between terminals in wireless communication system, and ...
Lg Electronics Inc.
February 09, 2017 - N°20170041882

Disclosed is a method for transmitting and receiving a signal by a device to device (d2d) terminal in a wireless communication system, according to an embodiment of the present invention, the method comprising the steps of: calculating a power headroom; and reporting the power headroom to a base station, wherein, if a terminal performs an uplink transmission to the ...
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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 ...
System and method for user equipment initiated management of carrier aggregation
Apple Inc.
January 12, 2017 - N°20170012758

Methods that are performed by a user equipment (ue) and corresponding methods of base stations that allow a ue to determine whether the ue is in a carrier aggregation enabled or disabled state. One exemplary embodiment of a method performed by a ue determines a first artificial value for a first parameter and a second artificial value for a power ...
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 ...
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