A Space Multiplexing Method for Directional Antennas in Millimeter Wave Systems

Abstract

The invention discloses a direction antenna spatial multiplexing method for a millimeter wave system. Firstly, an information collection mechanism and evaluation criteria are defined, and then the following steps are carried out. The steps comprise 1, feeding back beam reference pairs of a transmitting and receiving end to a PCP / AP in a beam forming process, thereby forming a beam reference pair information table BFT; 2, transforming the beam reference pair information table BFT into a link beam difference value table LDT; 3, performing a spatial multiplexing dispatching algorithm, and generating an optimum link dispatching method; and 4, sending a generation scheme to each STA by the PCP / AP through BTI, and performing the generation scheme in a next SP period by the STA. According to the method, the detection time of signal interference between links is reduced, the simple, easy-judging and effective evaluation criteria are designed, the feasible, fast and effectively dispatching scheme is provided, the spatial multiplexing gain can be effectively improved, and the throughput of the whole millimeter wave system can be improved.

Description

technical field [0001] The invention relates to a space multiplexing method for transmitting and receiving beam index pairs in the millimeter wave beam forming process, and belongs to the technical field of wireless communication. Background technique [0002] Millimeter wave (mmWave) communication technology has always been a hot topic of common concern in academia, industry, and standard circles. In recent years, the US Federal Communications Commission (FCC) has considered authorizing LMDS frequency bands (27.5GHz-28.35GHz, 29.1GHZ-29.25GHz, 31GHZ-31.3GHz), 32GHz frequency bands, 39GHz frequency bands, 37GHz-41GHz frequency bands and 60GHz frequency bands for future use E-Band (70GHz-80GHz) can provide continuous bandwidth (1-2GHz), meeting the requirements of 10Gbit / s peak rate and 100Mbit / s-1Gbit / s cell edge rate in 5G technology. One of the dynamic technologies of "industry attractiveness". Major standard organizations have continuously introduced drafts and standard...

AI Technical Summary

Problems solved by technology

However, this method also has some shortcomings: (1) The receiving end of other devices needs to receive signals omnidirectionally. When a directional antenna is used, it will cause inaccurate judgment of interference signals

(2) The device needs to use all devices as a source device to detect and scan each sector to record the sector listening table before the signal transmission period, which takes extra time

This patent application only focuses on the hardware aspect, which effectively reduces the cost of efficiency, and does not involve the gain of spatial multiplexing in resource allocation.

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