Coordinated Beam Refinement for Massive IoT Networks
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Solution Overview
Problem
Current wireless communication networks face significant control signaling overhead in performing per-UE beam refinement and beam failure recovery, especially in massive IoT networks with thousands of nodes, due to the need for individual beam selection and adjustment, which can impact data transmission efficiency.
Innovation Solution
Implementing coordinated beam refinement and beam failure recovery on a group basis, where base stations group nodes with correlated channel structures to share beam characteristics and adjustments, reducing the need for individual node signaling and optimizing beam settings for improved signal quality across the group.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If per-UE beam refinement and beam failure recovery are performed individually for each node, then beam optimization and signal quality are improved, but control signaling overhead increases significantly
Solution Approach 1:
The patent groups multiple UEs with correlated channel characteristics into a common beam refinement group. Instead of performing individual beam refinement for each UE, the base station performs a single coordinated beam refinement for the entire group, merging multiple individual operations into one collective operation that reduces control signaling overhead while maintaining signal quality.
Solution Approach 2:
The patent creates a universal beam configuration that serves multiple UEs simultaneously. A single beam refinement result is applied universally to all UEs in the group, allowing one beam configuration to fulfill the beam optimization need for multiple users, thereby reducing the quantity of control signaling required.
2Reliability
If individual beam selection and adjustment is performed for each node, then beam optimization is achieved, but data transmission efficiency decreases due to high signaling overhead
Solution Approach 1:
The patent merges individual beam adjustment operations into a single coordinated beam refinement process for grouped UEs. This consolidation reduces the time and resources spent on repetitive signaling, thereby improving data transmission efficiency while still achieving beam optimization for each UE through the shared refinement result.
3Reliability
If beam refinement is performed for thousands of nodes in massive IoT networks, then comprehensive beam optimization is achieved, but control signaling overhead becomes unmanageable
Solution Approach 1:
The patent segments the large population of thousands of IoT nodes into multiple smaller groups based on channel correlation. Each group undergoes coordinated beam refinement independently, which reduces the complexity of control signaling compared to handling all nodes individually, while still achieving comprehensive beam optimization coverage across the entire network.
Solution Approach 2:
The patent combines multiple individual beam refinement operations into fewer coordinated group-level operations. By merging the beam refinement process at the group level rather than the individual UE level, the system makes the control signaling overhead manageable even in massive IoT networks with thousands of nodes.
4Reliability
If per-UE beam adjustment is implemented, then individual node signal quality is improved, but system complexity increases
Solution Approach 1:
The patent merges individual beam adjustment operations into coordinated group-level beam refinement. This approach maintains individual node signal quality by ensuring each UE in the group receives optimized beam parameters, while reducing system complexity by eliminating the need for separate independent adjustment mechanisms for each UE.
Data Source
AI summary
Wireless communications systems and methods related to coordinated beam refinement and coordinated beam failure recovery (BFR) in a wireless communication network are provided. A first wireless communication device communicates, with a second wireless communication device of a group of wireless communication devices, a communication signal using a first beam characteristic. The first wireless communication device receives, from the second wireless communication device, at least one of beam feedback information or a beam change request. The first wireless communication device transmits, to the group of wireless communication devices in response to the at least one of the beam feedback information or the beam change request, a beam configuration indicating a second beam characteristic to be used by the group of wireless communication devices for communicating with the first wireless communication device, the second beam characteristic being different from the first beam characteristic.