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Power control method and power control device

A technology of power control and transmission power, which is applied in the field of power control methods and power control devices, and can solve problems such as inability to quickly use path loss and interference, inconsistent signal-to-noise ratio, inconsistent signal power and received power, etc.

Active Publication Date: 2019-11-01
BEIJING ZHIGU RUI TUO TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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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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  • Power control method and power control device

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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

Various embodiments of the present application disclose a power control method and a power control device. The method includes: during the transmission of an uplink signal with a first time-domain transmission length on a channel, receiving at least one first time domain transmission transmitted on the channel. Information, wherein the first time-domain transmission length does not exceed the time-domain transmission length of a protocol data unit PDU; at least according to the at least one piece of first information, the uplink transmission power during the first time-domain transmission length is adjusted. Through the method and device of the embodiment of the present application, the transmitter device can dynamically adjust the transmission power of the uplink signal according to at least one piece of first information transmitted on the same channel received during the process of sending the uplink signal, thereby increasing the transmission power. Adjust granularity for more precise power control.

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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Patent Type & Authority Patents(China)
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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