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Power control method and power control device

A technology of power control and power, applied in the field of communication, can solve the problems of unlicensed carrier power and effective control, etc.

Inactive Publication Date: 2017-08-01
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0045] The present invention provides a power control method and device to at least solve the problem in the related art that the power of unlicensed carriers cannot be effectively controlled

Method used

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  • Power control method and power control device
  • Power control method and power control device
  • Power control method and power control device

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Embodiment Construction

[0078] Hereinafter, the present invention will be described in detail with reference to the drawings and examples. It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other.

[0079] It should be noted that the terms "first" and "second" in the description and claims of the present invention and the above drawings are used to distinguish similar objects, but not necessarily used to describe a specific sequence or sequence.

[0080] In addition, the following issues need to be clarified:

[0081] (1) The transmitter on the unlicensed carrier must meet the control of occupying 80% of the system bandwidth or nominal bandwidth when transmitting. However, sometimes the transmitting end cannot map all the REs in a unit RB when transmitting. For example, when the comb structure is used to evenly disperse in the range of bandwidth resources with a span greater than or equal to 8...

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Abstract

The invention provides a power control method and a power control device. The method comprises steps: information is determined to be transmitted on an unlicensed carrier; power control is carried out on the unlicensed carrier in at least one of the following manners: power control is carried out according to a power spectral density (PSD) based on a resource element (RE); the PSD based on the RB is adjusted, and power control is carried out according to the adjusted PSD; power control is carried out according to the PSD of actual data and the PSD of an occupying signal, wherein the actual data are data actually transmitted by a transmitting terminal and the occupying signal is a signal used for occupying a channel; power control is carried out according to a power offset; power control is carried out by means of adaptive adjustment or semi-static adjustment CCA detection of a threshold; and power control is carried out by means of controlling the range of values of at least one parameter related to power control. Thus, the problem that the power of the unlicensed carrier can not be controlled effectively in a related technology can be solved.

Description

technical field [0001] The present invention relates to the communication field, in particular, to a power control method and device. Background technique [0002] Since 3GPP R10, in order to meet the requirements of IMT-Advanced (International Mobile Telecommunications-Advanced, Advanced International Mobile Communication), LTE-A (Long Term Evolution-Advanced, LTE Evolution) has adopted CA (Carriers Aggregation, Carrier Aggregation) technology Further support wider communication bandwidth than LTE (Long Term Evolu-tion, long-term evolution). The main principle of carrier aggregation is to support a maximum bandwidth of 100MHz by aggregating multiple carriers that are backward compatible with LTE. After the introduction of carrier In an aggregated system, the aggregated carrier is called CC (Component Carrier, component carrier), also called a Cell (cell). At the same time, PCC / PCell (Pr-imary Component Carrier / Cell, primary component carrier / Cell) and SCC / SCell (Secondary...

Claims

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Application Information

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IPC IPC(8): H04W52/02H04W52/14H04W52/18
CPCH04W52/0209H04W52/14H04W52/18Y02D30/70
Inventor 毕峰苟伟赵亚军彭佛才杨玲李新彩
Owner ZTE CORP
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