Bidirectional dynamic amplification method and apparatus for TDD system

A technology of a time division duplex system and an amplifying device, which is applied in the field of wireless communication and can solve problems such as cable loss

Inactive Publication Date: 2009-07-01
BEIJING RFMC TECH CORP
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  • Description
  • Claims
  • Application Information

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Problems solved by technology

Due to the loss of the radio frequency signal in the space propagation path or the loss of the ...

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  • Bidirectional dynamic amplification method and apparatus for TDD system
  • Bidirectional dynamic amplification method and apparatus for TDD system
  • Bidirectional dynamic amplification method and apparatus for TDD system

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Embodiment Construction

[0034] Such as figure 1 As shown, in one embodiment of the present invention, the bidirectional dynamic amplifying device for a time division duplex system includes a downlink branch, an uplink branch, a first radio frequency switch, a second radio frequency switch and a working state control device.

[0035] The downlink branch is used to amplify radio frequency signals from the central office to the user end, and includes the first radio frequency amplifier 11 and the first radio frequency unit 12 of the downlink branch. The uplink branch is used to amplify radio frequency signals from the user terminal to the central office, and includes a second radio frequency amplifier 21 and a second radio frequency unit 22 of the uplink branch. The first radio frequency switch 1 is set on the side close to the central office for switching the uplink branch and the downlink branch, and the second radio frequency switch 2 is set on the side close to the user end for the uplink branch Sw...

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Abstract

The invention provides a two-way dynamic amplification method used for a time division duplex system and a two-way dynamic amplification device thereof. The two-way dynamic amplification method comprises the following steps: a working state control device detects the radio-frequency signals of the user-side direction and the local-side direction, compares the radio-frequency signals with the preset start-up detection threshold and/or the preset shut-down detection threshold, and outputs the logic control signal to control a two-way dynamic amplification device, so as to enable the two-way dynamic amplification device in one of the working states. The working states of the two-way dynamic amplification device include an idle state, a downlink branch amplification state and an uplink branch amplification state. In the idle state, both the uplink branch and the downlink branch don't provide the radio-frequency signal amplification function. In the downlink branch amplification state, only the downlink branch provides the radio-frequency signal amplification function. In the uplink branch amplification state, only the uplink branch provides the radio-frequency signal amplification function. The two-way dynamic amplification method can dynamically acquire the transmission/reception synchronization and achieve the effect of two-way dynamic amplification.

Description

technical field [0001] The invention relates to the field of wireless communication, in particular to a bidirectional dynamic amplification method and device for a time division duplex system. Background technique [0002] In the wireless communication system, the communication between the equipment of the wireless communication system is realized through wireless space or wired cable transmission in the radio frequency band. Due to the loss of the radio frequency signal in the space propagation path or the loss of the cable, the communication distance of the interconnected wireless devices is limited within a certain range. In order to increase the communication distance and increase the coverage area at the same time, a radio frequency signal bidirectional amplification device can be used between interconnected devices. [0003] The duplex mode of the wireless communication system can be mainly divided into two types: Frequency Division Duplex (FDD, Frequency Division Dup...

Claims

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Application Information

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IPC IPC(8): H04B7/26H04J3/02H03F3/62
Inventor 赵振江闫岩程皓王文申马槐楠
Owner BEIJING RFMC TECH CORP
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