Dynamic RF Unit Allocation for Wireless Data Streams
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Solution Overview
Problem
In wireless communication systems operating in noncontiguous frequency bands, existing technologies restrict the number of data streams that can be transmitted over a primary frequency band, limiting data rate enhancement due to the need for separate RF units for each band, resulting in underutilization of RF units and reduced MIMO benefits.
Innovation Solution
A method and system that determine the spatial capability of a second wireless device and adjust the number of data streams transmitted over a primary frequency band based on this capability, allowing multiple data streams to be transmitted by re-designating RF units, thereby overcoming the limitations of prior art.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If a wireless device operates over multiple noncontiguous frequency bands simultaneously, then the equivalent operation bandwidth is widened and data rate is improved, but the number of data streams in each individual band is reduced due to RF unit allocation constraints
Solution Approach 1:
The patent implements dynamic RF unit allocation where RF units are not statically assigned to specific frequency bands but are dynamically reassigned based on real-time communication needs. The controller determines spatial capabilities of wireless devices and dynamically configures the number of RF units dedicated to each band, allowing the system to adapt between wideband operation and high-order MIMO operation as conditions require.
Solution Approach 2:
RF units are designed to be multi-functional, capable of operating across different frequency bands rather than being dedicated to a single band. This universality allows the same RF unit to serve multiple purposes: it can be allocated to different bands at different times, enabling the system to achieve both wide equivalent bandwidth and high data stream counts by flexibly reusing RF units across bands based on spatial capability assessments.
2Adaptability or versatility
If RF units are dedicated to each noncontiguous frequency band, then simultaneous transmission over multiple bands is enabled, but spatial capability and MIMO performance are limited
Solution Approach 1:
The system dynamically adjusts RF unit allocation based on assessed spatial capabilities of communicating devices. When a device with high spatial capability is detected, more RF units are allocated to that band to maximize MIMO performance. When spatial capability is limited, fewer RF units are allocated, allowing other RF units to be used for wideband operation across multiple bands.
Solution Approach 2:
The patent changes the parameter of RF unit allocation from a fixed value to a variable that depends on spatial capability assessment. The controller evaluates the spatial capabilities of wireless devices and adjusts the number of RF units dedicated to each frequency band accordingly, optimizing the balance between multi-band transmission capability and spatial/MIMO performance based on real-time conditions.
3Area of stationary object
If multiple RF units are used for wideband operation, then equivalent bandwidth is increased, but the number of usable RF units for high-order MIMO in each band is reduced
Solution Approach 1:
The system implements dynamic RF unit allocation that adjusts the number of RF units dedicated to each frequency band based on the spatial capabilities of communicating devices. When high data rate enhancement through MIMO is needed, more RF units are allocated to that band. When wideband operation is prioritized, RF units are distributed across multiple bands. This dynamic allocation allows the system to optimize between equivalent bandwidth and MIMO productivity based on real-time communication requirements.
Solution Approach 2:
The patent changes the allocation parameter from static to dynamic, where the number of RF units per band is adjusted based on spatial capability assessment. This parameter change enables the system to achieve high MIMO productivity when needed by concentrating RF units in a single band, or achieve high equivalent bandwidth by distributing RF units across multiple bands, thus resolving the contradiction between bandwidth and MIMO productivity.
Data Source
AI summary
The present invention provides a method of configuring transmission data streams and a wireless communication system. A first wireless device of the wireless communication system determines a number of data streams for a second wireless device, under a condition that the first wireless device operates in a noncontiguous operation mode. Radio frequency (RF) units of the wireless devices are fully exploited, and the data rate between the first wireless device and the second wireless device is enhanced.