A device and method for adaptively canceling receiving in-band interference in a wireless transceiver system
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A wireless transceiver system and technology for receiving interference, applied in the field of communication, can solve problems such as high maintenance costs of wireless networks, in-band interference, and wireless network performance that cannot be maximized
Active Publication Date: 2020-08-04
沃勤科技有限公司
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[0002] With the continuous upgrading of wireless communication networks and the rapid development of the Internet of Things, the number of wireless communication networks in various frequency bands and formats has increased sharply, the electromagnetic environment of wireless networks has become increasingly complex, and the in-band interference problems encountered by wireless network equipment have also become increasingly complex. These have brought serious challenges to the normal use and maintenance of wireless networks
[0003] The existing method is to solve the problem of in-band interference by improving the sensitivity of the receiving equipment and reasonable network planning and reducing the performance of the network
The problem caused by the existing method is that the performance of the wireless network cannot be brought into full play, the maintenance cost of the wireless network is high, and the service quality of the network is not good. It is imminent and imperative to receive in-band interference cancellation devices for adaptive wireless transceiver systems
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Embodiment 1
[0078] figure 1 A device and a canceling method for receiving in-band interference in a wireless transceiver system with adaptive cancellation are shown, and the device includes:
[0079] RF transceiver channel and multi-channel coupling switch filter unit A, received signal cancellation unit B, received signal generation unit C, received signal frequency discrimination circuit D, downlink signal synchronization and frequency discrimination unit E, received interference signal cancellation unit F, data processing unit G;
[0080] The radio frequency transceiver channel and the multi-channel coupling switch filter unit A consists of a strip line or coaxial cable A3, a first coupler A2, a second coupler A4, a third coupler A5, a power feeding circuit A6, a first radio frequency Switch A7, second RF switch A9, third RF switch A10, fourth RF switch A12, fifth RF switch A13, sixth RF switch A15, first trap A8, second trap A11 and third trap Wave A14 composition;
[0081] The cou...
Embodiment 2
[0138] An embodiment of the present application provides a method for adaptively canceling received in-band interference in a wireless transceiver system, wherein the method obtains carrier configuration, frequency, and power information of a received signal according to frequency discrimination of the received signal, and obtains information according to a signal synchronization unit. The synchronization signal of the base station, and then the received signal generation unit generates a signal that is the same as the received signal of the wireless transceiver receiving channel. The following processes and methods include the received signal frequency discrimination process, the signal synchronization process, and the received signal generation process, such as Figure 7-9 shown;
[0139] First, perform frequency discrimination on the received signal coupled from the main channel of the RF transceiver to obtain the carrier configuration, frequency and power information of the...
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Abstract
The invention discloses a device for receiving in-band interference in a wireless transceiving system with an adaptive counteracting function and a counteracting method. The function of the device isas follows: a transmission signal of a signal coupled from a radio frequency transceiving channel is filtered by a wave trap, and then divided by an amplification and power division device, one signalreaches a counteracting circuit after being delayed, the other signal which is the same as an in-band receiving signal and generated by a receiving signal generation unit is counteracted with an original receiving signal at the counteracting circuit, a data processing unit adjusts an amplitude and phase modulation device according to the size of the signal detected by the receiving signal detection circuit until the received signal is less than a preset value, the amplitude and phase of the interference signal are counteracted by a data processing unit according to the size of the detected in-band receiving interference signal, and adjusted inference signal is fed into a main receiving channel to counteract an in-band interference signal in the main channel, and thus the problem of in-band interference of the main channel is solved. According to the device and method provided by the invention, the received in-band interference signal can be adaptively counteracted according to the variation of the receiving interference signal, and the deficiency that in traditional ways, only the in-band interference of a certain fixed frequency point can be solved via the wave trap is overcome.
Description
technical field [0001] The present application relates to the field of communication technologies, and in particular, to a device and a method for adaptively canceling received in-band interference in a wireless transceiver system. Background technique [0002] With the continuous upgrading of wireless communication networks and the rapid development of the Internet of Things, the number of wireless communication networks of various frequency bands and standards has increased sharply, the electromagnetic environment of wireless networks has become increasingly complex, and the in-band interference problems encountered by wireless network devices have also increased. Increasingly, these have brought serious challenges to the normal use and maintenance of wireless networks. [0003] The existing method is to solve the problem of in-band interference by improving the sensitivity of the receiving equipment, rational network planning and reducing the performance of the network. ...
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