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Self-excitation detection method and system for wireless signal relay amplification device

A wireless signal and amplification device technology, applied in the field of self-excitation detection of wireless signal relay amplification device

Active Publication Date: 2020-10-09
SPREADTRUM COMM (SHANGHAI) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to overcome the defect in the prior art of judging whether to enter the self-excited state only based on the comparison result of the received signal power and the signal power detected by the baseband side, and to provide a wireless signal relay amplifier Self-excited detection method and system

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  • Self-excitation detection method and system for wireless signal relay amplification device
  • Self-excitation detection method and system for wireless signal relay amplification device
  • Self-excitation detection method and system for wireless signal relay amplification device

Examples

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Embodiment 1

[0067] This embodiment provides a self-excited detection method for a wireless signal relay amplification device, wherein the wireless signal relay amplification device can be, for example, a repeater, a micro-chamber, etc., and specifically includes a receiving side, a baseband side, and a transmitting side, Further, the self-excited detection method of this embodiment can be applied to the baseband side.

[0068] Specifically, refer to figure 1 , the main path of the wireless signal relay amplification device in the present embodiment is made of two cascaded radio frequency transceiver modules, wherein, the two radio frequency transceiver modules are all configured with two groups comprising PA (Power Amplifier, power amplifier) ​​and The loop of the LNA (Low Noise Amplifier, low noise amplifier), the baseband side includes a baseband chip and a PMU (Power Management Unit, power management unit). In this embodiment, the radio frequency transceiver module used for receiving ...

Embodiment 2

[0101] This embodiment provides a self-excited detection system of a wireless signal relay amplifying device, wherein the wireless signal relay amplifying device can be, for example, a repeater, a micro-chamber, etc., and specifically includes a receiving side, a baseband side, and a transmitting side, Furthermore, the self-check detection system of this embodiment can be applied to the baseband side.

[0102] Specifically, refer to figure 1 , the main path of the wireless signal relay amplification device in this embodiment is composed of two cascaded radio frequency transceiver modules, wherein the two radio frequency transceiver modules are equipped with two groups of loops including PA and LNA, and the baseband side includes Baseband chip and PMU. In this embodiment, the radio frequency transceiver module used for receiving wireless signals is marked as a receiving side, and the radio frequency transceiver module used for transmitting wireless signals is marked as a trans...

Embodiment 3

[0135] This embodiment provides an electronic device, which can be expressed in the form of a computing device (for example, it can be a server device), including a memory, a processor, and a computer program stored on the memory and operable on the processor, wherein the processor The self-excited detection method of the wireless signal relay amplifier provided in Embodiment 1 can be realized when the computer program is executed.

[0136] Figure 5 A schematic diagram of the hardware structure of this embodiment is shown, as Figure 5 As shown, the electronic device 9 specifically includes:

[0137] At least one processor 91, at least one memory 92, and a bus 93 for connecting different system components, including the processor 91 and the memory 92, wherein:

[0138] The bus 93 includes a data bus, an address bus, and a control bus.

[0139] The memory 92 includes a volatile memory, such as a random access memory (RAM) 921 and / or a cache memory 922 , and may further incl...

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Abstract

The invention discloses a self-excitation detection method and system of a wireless signal relay amplification device. The wireless signal relay amplification device comprises a receiving side, a baseband side and a transmitting side. When the receiving side receives a wireless signal, the self-excitation detection method comprises the following steps: closing the transmitting side; judging whether the input power of the wireless signal detected by the receiving side is the same as the input power of the wireless signal transmitted from the receiving side to the transmitting side and detectedby the baseband side or not; if not, judging whether self-excitation occurs or not according to the wireless signal detected at the baseband side. According to the invention, whether the wireless signal relay amplification device generates self-excitation is judged based on the process; the misjudgment that the wireless signal relay amplification device enters the self-excited state due to the continuous change of the receiving power and the isolation degree can be reduced, so the wireless signal relay amplification device can be in a normal forwarding state when the external environment changes, the quality of the wireless signal relay amplification device can be improved, and the user experience can be improved.

Description

technical field [0001] The invention relates to the technical field of wireless communication, in particular to a self-excited detection method and system of a wireless signal relay amplifier. Background technique [0002] Wireless signal relay amplifiers such as wireless repeaters have the function of amplifying the received wireless signal before transmitting it. During its actual working process, part of the transmitted signal will be fed back to its receiving side and amplified again, thus forming With positive feedback, the RSSI (Received Signal Strength Indication) control word calibrated by the AGC (Automatic Gain Control) on the receiving side increases continuously until saturation, the gain is greater than the isolation, and self-excitation occurs. [0003] In the actual working process of wireless signal relay amplifiers such as wireless repeaters, the received power and isolation will continue to change due to external complex environmental changes, and self-exci...

Claims

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Application Information

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IPC IPC(8): H04B17/40H04B7/155H04B7/185H04W24/02
CPCH04B17/40H04B7/15535H04B7/18543H04W24/02Y02D30/70H04B17/318
Inventor 张永升
Owner SPREADTRUM COMM (SHANGHAI) CO LTD
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