Transmission Occasion Grouping for Lower-Collision Wireless Access
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Solution Overview
Problem
Existing wireless communication systems face collisions in contention-based access signal transmissions due to shared random-access channel resources, leading to delays and disrupted communications.
Innovation Solution
Configuring multiple transmission occasions (TOs) for user equipment, where each TO is shared by multiple UEs, allowing for contention-based access signal transmissions with resource allocation from a set of shared resources and monitoring for response messages.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If multiple UEs share the same random-access channel resources for contention-based access, then resource utilization is improved, but collision probability increases
Solution Approach 1:
The patent segments the random access procedure by dividing transmission occasions into groups and further dividing resources within each group. UEs are configured with specific groups and subsets of resources, creating a hierarchical structure that segments the overall access mechanism. This segmentation reduces collisions by ensuring that UEs in the same group use distinct resource subsets while maintaining efficient resource utilization through shared group-level configuration.
2Adaptability or versatility
If multiple transmission occasions are configured for UEs, then access flexibility is improved, but system complexity increases
Solution Approach 1:
The patent implements a universal configuration framework where a single set of group and subset configurations serves multiple transmission occasions and multiple UEs. The network configures groups and resource subsets that can be reused across different UEs and occasions, providing access flexibility without requiring separate dedicated configurations for each UE or occasion. This multi-functional approach reduces system complexity while maintaining adaptability.
Data Source
AI summary
Methods, systems, and devices for wireless communications are described. A user equipment (UE) may receive a configuration for a group of transmission occasions comprising more than one transmission occasion, each transmission occasion in the group of transmission occasions comprising a set of resources shared by a plurality of UEs for contention-based data or access signal transmissions. The UE may perform at least one data or access signal transmission in at least one transmission occasion in the group of transmission occasions and using a resource from the set of resources of the at least one transmission occasion. The UE may monitor for at least one response message based at least in part on the at least one data or access signal transmission.