Method for switching communication node between full-duplex mode and half-duplex mode

Abstract

The invention discloses a method for switching communication nodes between a full-duplex mode and a half-duplex mode. The method comprises the following steps: firstly, measuring the distance between the communication nodes; secondly, respectively determining transmitting power in a full-duplex mode and a half-duplex mode according to the dynamic range limitation of an analog-to-digital converter (ADC) of a receiving end; thirdly, calculating the upper bound of the traversal capacity in a full-duplex mode and the upper bound of the traversal capacity in a half-duplex mode respectively by using the obtained transmitting power; and finally, comparing the upper bound of the traversal capacity in the two modes, if the upper bound of the traversal capacity in the half-duplex mode is greater than the upper bound of the traversal capacity in the full-duplex mode, switching to the half-duplex mode, and if the upper bound of the traversal capacity in the full-duplex mode is greater than the upper bound of the traversal capacity in the half-duplex mode, switching to the full-duplex mode. Compared with a traditional method which only adopts a full-duplex mode or a half-duplex mode, the method provided by the invention has the advantages that by switching between the two modes, the advantages of each mode can be fully utilized, and the channel capacity of the system can be improved at limited cost.

Description

Technical field [0001] The present invention belongs to the technical field of communication, and in particular, a method of switching between a communication node in a full duplex mode and a half duplex mode. Background technique [0002] Currently, the actual wireless communication system is widely used in Half-Duplex, HDs, including two ways of Frequency Diffision Duplexing, FDD, and TDD, and TDD. Where the Duplex mode of the FDD uses the same time slot but different frequencies to transmit data, the TDD is used to transmit data in the same frequency but different time slots. These two two-way processes effectively avoid signal interference between the upper and downlinks, but sacrificing frequency resources and time resources, which reduces spectral efficiency. [0003] Full Duplex (FD) technology allows a device to transmit and receive signals simultaneously on the same frequency band resources, compared to the FDD and TDD, ideally, can double the spectral efficiency. Howeve...

AI Technical Summary

Problems solved by technology

Although ideally full-duplex can double the spectral efficiency, self-interference cannot be completely eliminated. Residual self-interference will reduce the gain brought by full-duplex to a certain extent, which will lead to Full-duplex mode may be better, but half-duplex mode may be better in other cases

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