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Power control method and device

A power control and transmission power technology, applied in the field of power control methods and power control devices, can solve the problems of inconsistency of signal power and received power, inability to quickly use path loss and interference, and inconsistency of signal-to-noise ratio

Active Publication Date: 2016-12-21
BEIJING ZHIGU RUI TUO TECH
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the actual path loss is affected by various factors such as environmental changes and atmospheric conditions, and it actually changes continuously over time, resulting in the fact that the signal power actually received by the receiving end does not match the expected received power, or in other words, does not match the expected received power. Signal-to-noise ratio does not match
In the above closed-loop power control scheme, the power control command is determined before the uplink signal is sent, and the path loss and interference that continuously change with time cannot be quickly used, etc.

Method used

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Embodiment Construction

[0091] The specific implementation manners of the present invention will be described in further detail below in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0092] Those skilled in the art can understand that terms such as "first" and "second" in this application are only used to distinguish different devices, modules or parameters, etc., neither represent any specific technical meaning, nor represent the inevitable relationship between them. logical order.

[0093] The schemes of the embodiments of the present application can be used in various networks / systems, including but not limited to: Code Division Multiple Access (CDMA) network, Time Division Multiple Access (TDMA) network, Frequency Division Multiple Access (FDMA) network, Orthogonal FDMA (OFDMA) network, single-carrier FDMA (SC-FDMA) network, etc. The terms "system" ...

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Abstract

The invention discloses a power control method and device. The method comprises that when uplink signals, in the first time-domain transmission length, are transmitted in a channel, at least first information, transmitted in the channel, is received, and the first time-domain transmission length does not exceed the time-domain transmission length of a protocol data unit (PDU); and the uplink emission efficiency in the period of the first time-domain transmission length is adjusted according to the at least first information at least. Via the method and device, emission-end equipment can adjust the emission power of the uplink signals dynamically according to the received first information transmitted in the same channel in the process that the uplink signals are transmitted, the adjusting granularity of emission power is improved, and power control is more accurate.

Description

technical field [0001] The present application relates to the technical field of mobile communication, and in particular to a power control method and a power control device. Background technique [0002] In a mobile communication system, the transmission process of a signal in a wireless channel will be affected by various factors that may cause signal fading, such as path loss. One of the main technical means to overcome channel fading is power control: on the basis of evaluating the received signal strength and / or signal-to-noise ratio of the receiving end, the transmitting power of the transmitting end is changed in time to compensate for the path loss and fading, thereby maintaining communication quality. Power control technology includes open-loop power control technology solutions, closed-loop power control technology solutions, and open-loop and closed-loop combined power control technology solutions. In the open-loop power control technical solution, the transmitt...

Claims

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Application Information

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IPC IPC(8): H04W52/14
CPCH04W52/146H04W52/246H04W52/248H04W52/283H04W52/241H04W64/00
Inventor 黄伟才
Owner BEIJING ZHIGU RUI TUO TECH
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