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Power control method in multi-carrier frequency time division multiplex code division multiple access system

A technology of code division multiple access and time division multiplexing, which is applied in the transmission system, communication between multiple stations, power management, etc., can solve the problem of fast bandwidth fading of high-speed mobile users, and achieve good tracking of fast fading Effect

Active Publication Date: 2015-06-03
ZTE CORP
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] In order to solve the problem that the bandwidth of high-speed mobile users is affected by fast fading, the present invention provides a power control method in a multi-carrier frequency time division multiplexing code division multiple access system

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  • Power control method in multi-carrier frequency time division multiplex code division multiple access system
  • Power control method in multi-carrier frequency time division multiplex code division multiple access system
  • Power control method in multi-carrier frequency time division multiplex code division multiple access system

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Embodiment Construction

[0017] The preferred embodiments of the present invention will be described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described here are only used to illustrate and explain the present invention, and are not intended to limit the present invention.

[0018] The power control method in the multi-carrier frequency time division multiplexing code division multiple access system configures at least two carrier frequencies so that the signal transmission directions in at least one time slot are different, which includes the following steps: The time slot conversion points are staggered, and the measurement result of one carrier frequency in at least two carrier frequencies is sent to the opposite end on the other carrier frequency.

[0019] figure 1 It is a flow chart of the power control method in the multi-carrier frequency time division multiplexing code division multiple access system according to the present inv...

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Abstract

The invention provides a power control method in multi-carrier time division multiplexing code frequency division multiple access system, which can configure at least two carriers to at least one time slot signal with different transferring directions. The invention comprises the following steps: time slot transferring points of at least two carrier frequencies are configured in a staggering manner, one testing result of at least two carrier frequencies is sent to the opposite terminal from the other carrier frequency. Therefore, when the cell is configured with the multi-carriers, the quick close power control can be achieved on the time slot, so that the close power control time delay can be shortened, the fast fading can be tracked and the signal quality can be improved.

Description

technical field [0001] The present invention relates to a method for fast power control in a multi-carrier frequency time division multiplexing code division multiple access (TD-SCDMA) system in the third generation mobile communication, more specifically, relates to a multi-carrier frequency cell and a method for fast power control of a multi-carrier frequency mobile phone system. Background technique [0002] TD-SCDMA is an interference-limited system. On the same frequency, the system has many user equipments (UEs) to send and receive signals. In order to reduce interference when sending and receiving signals, the transmit power must be controlled. In addition, in order to combat the signal fading in the wireless transmission environment, power control must be carried out, especially in the environment where the signal fading changes rapidly faced by fast-moving users, power control is even more necessary. The main power control method of TD-SCDMA is closed-loop power c...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W52/08H04B7/26H04B1/707
Inventor 李立文
Owner ZTE CORP
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