Independent Link Channel Sensing for Multi-TRP Transmission Decisions
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Solution Overview
Problem
Current wireless communication systems face challenges in effectively managing multiple independent links, leading to inefficiencies in channel sensing, control information transmission, and power control across different links, which affects communication quality and reliability.
Innovation Solution
The system employs a method for obtaining and analyzing sensing information across multiple wireless communication links to determine transmission decisions independently for each link, using channel sensing groups, dynamic link allocation, and coordinated power control to optimize communication performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If joint transmission or dynamic point selection is used to enable communication with different TRPs on different links, then communication reliability is improved, but system complexity increases due to the need for coordinated channel sensing and resource management across multiple links
Solution Approach 1:
The patent segments the channel sensing process by introducing separate sensing mechanisms for different link types (intra-cell and inter-cell links). Each link type has its own sensing parameters and decision criteria, allowing independent optimization without requiring complex coordinated sensing across all links, thus reducing system complexity while maintaining reliability
Solution Approach 2:
The patent implements dynamic link allocation where the network can flexibly assign and reassign links between different TRPs based on real-time channel conditions and traffic requirements. This dynamic approach allows the system to adapt to changing conditions without rigid pre-configuration, improving reliability while managing complexity through adaptive rather than static management
2Productivity
If independent link management is implemented for each wireless communication link, then channel utilization is improved, but coordination overhead increases due to separate sensing and control for each link
Solution Approach 1:
The patent merges the channel sensing operations for multiple links by introducing a unified sensing mechanism that can simultaneously monitor channel conditions across different link types. This consolidation reduces redundant sensing operations and coordination overhead while still enabling independent link management decisions, thus improving channel utilization without proportional increases in overhead
3Measurement precision
If separate channel sensing is performed for each link type, then sensing accuracy is improved, but processing time increases due to multiple sensing operations
Solution Approach 1:
The patent performs preliminary channel sensing operations by continuously monitoring channel conditions and pre-calculating sensing results for different link types before actual transmission decisions are required. This advance preparation ensures accurate sensing results are readily available when needed, improving sensing accuracy while reducing the processing time required at the moment of transmission decision
Data Source
AI summary
Various aspects of the disclosure relate to channel sensing for independent 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). For example, the first device may communicate with a second device (e.g., a first TRP) via a first link and communicate with a third device (e.g., a second TRP) via a second link. In some scenarios, first channel sensing information may be obtained for the first link and second channel sensing information may be obtained for the second link. In some aspects, a decision of whether to transmit via one or more of the links may be based on the channel sensing on one or more of the links. In some cases, the links may be grouped together as a channel sensing group.