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Methods and apparatuses fopower allocation across multiple carriers using shared and dedicated radio frequency spectrum

A technology of radio frequency band and total transmit power, applied in the field of power distribution and devices across multiple carriers using shared and dedicated radio frequency spectrum, which can solve the problem of inability to support full power transmission of carriers

Active Publication Date: 2019-04-02
QUALCOMM INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In some cases, the total uplink transmit power available at the UE may not be able to support transmission on each carrier at the full power of the carrier

Method used

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  • Methods and apparatuses fopower allocation across multiple carriers using shared and dedicated radio frequency spectrum
  • Methods and apparatuses fopower allocation across multiple carriers using shared and dedicated radio frequency spectrum
  • Methods and apparatuses fopower allocation across multiple carriers using shared and dedicated radio frequency spectrum

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Embodiment Construction

[0040] As indicated above, in some cases the UE may transmit using multiple concurrent carriers, where one or more carriers transmit using a dedicated radio frequency spectrum and one or more carriers transmit using a shared radio frequency spectrum. Additionally, the UE may be scheduled to transmit higher priority control information on one or more carriers and may be in a power limited situation where the total available transmit power at the UE may not be able to support the full power of the carrier on each carrier transmitted on the carrier. Allocation of the total available uplink transmit power across different carriers can thus be performed, where one or more of the carriers receive reduced power than would otherwise be allocated to that carrier in a non-power-constrained scenario. Furthermore, where one or more carriers are to be used to transmit higher priority control information, it may be desirable to allocate additional power to these carriers in order to increas...

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Abstract

Methods, systems, and devices for wireless communication are described that provide for power allocation across different carriers using shared and dedicated radio frequency spectrum for a power-limited UE. In cases where power-limited UE is to transmit control information, power allocation across different carriers may be determined based on one or more of a number of parameters, such as a type of control channel for transmission of control information, an outcome of an LBT procedure for a carrier using shared radio frequency spectrum, a timing of the LBT procedure, one or more other concurrent transmissions, or any combination thereof.

Description

[0001] cross reference [0002] This patent application claims US Patent Application No. 15 / 609,815, entitled "POWERALLOCATION ACROSS MULTIPLE CARRIERS USING SHARED AND DEDICATED RADIOFREQUENCY SPECTRUM," filed May 31, 2017 by Yerramalli et al.; Priority to U.S. Provisional Patent Application No. 62 / 372,696, filed August 9, entitled "POWER ALLOCATION ACROSS MULTIPLE CARRIERS USING SHARED ANDDEDICATED RADIO FREQUENCY SPECTRUM"; both assigned to the assignee of the present application. Background technique [0003] The following relates generally to wireless communications, and more particularly, to power allocation across multiple carriers using shared and dedicated radio frequency spectrum. [0004] Wireless communication systems are widely deployed to provide various types of communication content such as voice, video, packet data, messaging, broadcast, and the like. These systems can support communication with multiple users by sharing the available system resources (eg, ti...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W52/34H04W52/38
CPCH04W52/325H04W52/346H04W52/367H04W52/38H04W72/21H04W72/56H04W16/14H04W72/0473H04W74/0816
Inventor S·耶拉马利陈万士P·加尔张晓霞
Owner QUALCOMM INC