Joint Uplink Resource Pools for Collision-Resilient UE Sharing
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Solution Overview
Problem
Uplink communications in wireless networks face limitations due to limited transmit power, processing capabilities, battery restrictions, and spatial degrees of freedom in user equipment (UEs), leading to interference, shading, handover issues, and varying radio channels, which existing techniques struggle to effectively manage, particularly in scenarios with simultaneous transmissions.
Innovation Solution
Implementing a joint-resource pool (JRP) for uplink communications, where UEs share physical resources with other UEs, using a listen-before-talk scheme and adaptive resource allocation based on configuration data, including rules for medium access, collision resolution, and data retransmissions, to enhance reliability and quality of service.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If multiple UEs transmit simultaneously in uplink, then communication productivity increases, but interference between transmissions increases
Solution Approach 1:
The patent segments the uplink resources into two distinct pools: a first resource pool for scheduled transmissions and a second resource pool for unscheduled transmissions. This segmentation allows multiple UEs to transmit simultaneously without interfering with each other, as each UE is assigned to a specific pool based on its transmission characteristics. The segmentation resolves the contradiction by enabling parallel transmissions while preventing interference through spatial separation of transmission opportunities.
Solution Approach 2:
The patent implements dynamic resource allocation where UEs can be assigned to different resource pools based on real-time conditions. The base station dynamically determines which pool a UE should use based on factors like transmission urgency, channel conditions, and current network load. This dynamic approach allows the system to adapt to changing conditions and maintain high productivity while managing interference through flexible resource distribution.
2Reliability
If scheduled transmissions are used, then transmission reliability improves, but adaptability to network conditions deteriorates
Solution Approach 1:
The patent divides the uplink transmission system into two segments: scheduled transmissions (first resource pool) for reliable but less flexible communication, and unscheduled transmissions (second resource pool) for adaptive and flexible communication. This segmentation allows the system to maintain reliability for critical transmissions while providing adaptability for others, resolving the contradiction between these two requirements.
Solution Approach 2:
The second resource pool serves multiple functions: it accommodates unscheduled transmissions, handles retransmissions, and provides adaptive resource allocation based on real-time network conditions. This multi-functional design enhances the system's adaptability while maintaining the reliability benefits of scheduled transmissions through the first resource pool.
3Reliability
If retransmissions are implemented, then data transmission reliability improves, but collision probability increases
Solution Approach 1:
The patent segments retransmission opportunities into the first resource pool (for scheduled retransmissions) and the second resource pool (for unscheduled retransmissions). This segmentation ensures that retransmissions are handled systematically without causing collisions, as each retransmission is assigned to an appropriate pool based on its timing and urgency characteristics. The segmentation resolves the contradiction by providing structured retransmission mechanisms that maintain reliability while preventing collisions.
Data Source
AI summary
Examples refer to communication networks between user equipments, UEs, with other devices, such as a base station, BS. Examples refer to communication methods, e.g., for uplink, UL. A joint-resource pool (JRP) is defined.