Wireless Communication Power Limiting Zone for Millimeter Wave Spectrum
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Solution Overview
Problem
The challenge in wireless communication systems is to efficiently utilize millimeter wave frequency bands while minimizing interference to primary users, as secondary users sharing the same spectrum resources often cause harmful interferences due to the high path loss and narrow beam characteristics of millimeter waves.
Innovation Solution
An electronic apparatus and method that determine a power limited zone for primary users, defined by a directional beam, and limit the emitting power of secondary users within this zone to prevent interference, using a spectrum management device to manage the power allocation and ensure communication quality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If secondary users share spectrum resources with primary users in millimeter wave frequency bands, then spectrum utilization rate is improved, but harmful interference to primary users occurs due to high path loss and narrow beam characteristics
Solution Approach 1:
The patent segments the three-dimensional space around a primary user into a power limited zone (defined by directional beams) and other zones. This spatial segmentation allows the system to selectively manage secondary user transmissions only in critical interference areas while permitting broader spectrum sharing elsewhere, thus improving overall spectrum utilization while protecting primary users from harmful interference.
2Productivity
If directional beams are used in millimeter wave communication, then transmission efficiency is improved, but the range of secondary users that may cause interference increases
Solution Approach 1:
The patent transitions from two-dimensional spectrum resource management to three-dimensional spatial-spectrum joint management by defining power limited zones using directional beams in 3D space. This dimensional extension allows the system to leverage the directional nature of millimeter wave transmissions to precisely identify and protect only the specific spatial regions where interference occurs, rather than restricting secondary users across entire frequency bands or large geographic areas.
Data Source
AI summary
Provided are an electronic device and method for wireless communication, and a computer-readable storage medium. The electronic device comprises a processing circuit configured to: determine the first power limiting region of the first primary user of a main system, wherein the first power limiting region is a three-dimensional space defined by the directional beams of the first primary user to the third primary user of the main system; and determine one or more secondary users in the first power limiting regions.