Independent Link Allocation for Multi-TRP Uplink-Downlink Control
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Solution Overview
Problem
Current wireless communication systems face challenges in effectively managing and allocating resources across multiple independent links, which are essential for efficient communication in multi-user, multi-beam scenarios, particularly in 5G and mmWave systems.
Innovation Solution
The solution involves determining the interaction between multiple wireless communication links and dynamically allocating resources based on this interaction, allowing for independent communication and resource management across each link, using techniques such as channel sensing, power control, and beam information sharing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If resources are allocated independently for each wireless communication link, then resource allocation flexibility and communication efficiency are improved, but system complexity and coordination difficulty increase
Solution Approach 1:
The patent segments the resource allocation process by introducing separate allocation entities for each wireless communication link. Each link can have its own resource allocation independently managed, allowing flexible resource distribution across multiple links while maintaining overall system coordination through the network entity. This segmentation enables improved communication efficiency without overwhelming system complexity.
Solution Approach 2:
The patent introduces a new dimension of resource allocation by adding link-specific allocation layers above the traditional single-resource-pool approach. This multi-dimensional allocation structure allows resources to be allocated both globally across the network and specifically per-link, providing flexibility while maintaining manageable complexity through hierarchical organization.
2Reliability
If multiple independent links are established for communication, then channel utilization and communication reliability are improved, but resource management complexity and allocation overhead increase
Solution Approach 1:
The patent segments resource management into link-specific allocation entities, where each independent communication link has its own dedicated resource allocation mechanism. This segmentation allows multiple links to operate independently with high reliability while the overall system manages complexity through modular, decentralized resource control rather than centralized management.
3Productivity
If dynamic resource allocation is implemented across multiple links, then channel utilization and network performance are improved, but computational overhead and allocation processing time increase
Solution Approach 1:
The patent implements preliminary resource allocation configurations for each link, where resource allocation parameters are pre-determined and stored for quick retrieval and application. This preliminary action reduces the computational overhead during dynamic allocation by avoiding complex real-time calculations, thus improving network performance while minimizing allocation processing time.
Data Source
AI summary
Various aspects of the disclosure relate to controlling allocations for independent links. For example, a device may dynamically control the uplink/downlink allocations for different links. In some aspects, the independent links may involve a first device (e.g., a user equipment) communicating via different independent links with different devices (e.g., transmit receive points (TRPs) or sets of TRPs). At least one device may signal the uplink/downlink allocation for the different links. If the isolation between links is high, the links may use different time division duplexed (TDD) or frequency division duplexed (FDD) subframe structures. If the isolation is low or for certain types of information (e.g., control information), the direction of transmission for one link may be constrained to be the same as the direction of transmission for another link (e.g., the links may use the same TDD/FDD frame structures). Also, sounding on different links may be time division multiplexed.