Beamforming Method for Multi-Carrier Wireless Devices
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Solution Overview
Problem
When multiple carrier aggregations are applied in a communication system supporting the mmWave band, electronic devices face a long time in obtaining a suitable beam for each carrier or frequency band, hindering efficient communication.
Innovation Solution
The electronic device performs first beam tracking on a primary component carrier using a first antenna array to determine a direction for beamforming, and then uses this information for second beam tracking on a secondary component carrier with a second antenna array, allowing for efficient beamforming across multiple frequency bands.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If beam tracking is performed for each carrier or frequency band separately, then communication reliability is improved, but the time required to obtain suitable beams increases
Solution Approach 1:
The patent performs beam tracking on the first component carrier (mmWave band) to establish beam direction information in advance. This preliminary beam tracking result is then reused for the second component carrier (sub-6GHz band), avoiding redundant beam tracking operations and reducing the time required while maintaining communication reliability through carrier aggregation
Solution Approach 2:
The beam tracking mechanism is designed to serve multiple component carriers simultaneously. The beam direction information obtained from one carrier is universally applied to another carrier through spatial relationship mapping, allowing a single beam tracking operation to benefit multiple frequency bands and reducing overall system complexity
2Quantity of substance
If carrier aggregation with multiple frequency bands is implemented, then transmission bandwidth is increased, but device complexity increases
Solution Approach 1:
The patent combines mmWave band (first component carrier) and sub-6GHz band (second component carrier) into a unified carrier aggregation framework. By merging the beam tracking processes and reusing spatial information across bands, the system achieves increased transmission bandwidth while managing device complexity through shared resources and coordinated operation
Solution Approach 2:
The patent introduces spatial relationship information as an intermediary between different component carriers. This intermediary element (beam direction mapping) enables seamless coordination between mmWave and sub-6GHz carriers, allowing the system to manage multiple frequency bands efficiently without proportionally increasing device complexity
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This method enables the electronic device to efficiently perform beamforming for a plurality of frequency bands, reducing the time required to establish suitable beams and enhancing communication efficiency.
Implementation Method 1
at least one communication processor transmitting and/or receiving a signal through the at least one wireless communication circuit, using beamforming
Data Source
AI summary
Disclosed is an electronic device including housing, a first antenna array positioned on the housing and/or inside the housing, a second antenna array spaced from the first antenna array and positioned on the housing and/or inside the housing, at least one wireless communication circuit electrically connected to the first antenna array and the second antenna array, and at least one communication processor transmitting and/or receiving a signal through the at least one wireless communication circuit, using beamforming. In addition, various embodiments as understood from the specification are also possible.