Time Division Multiplexing for Dual-RAT Communication
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Solution Overview
Problem
Current wireless communication systems, particularly those employing LTE and NR technologies, face challenges in efficiently managing resource allocation for dual-RAT communication, leading to potential conflicts and inefficiencies in uplink and downlink resource utilization.
Innovation Solution
The implementation of a method that involves receiving scheduling information for a particular radio access technology (RAT) based on a reference TDD configuration, ensuring non-overlapping resources in the time domain for both the first and second RATs, allowing for semi-static or dynamic resource allocation to improve communication efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If dynamic resource allocation is implemented for dual-RAT communication, then communication flexibility and adaptability to traffic conditions improve, but resource conflicts and collisions between different RATs increase
Solution Approach 1:
The patent segments time-domain resources into distinct sets for different RATs (first set of resources for first RAT, second set of resources for second RAT). These segmented resource sets are configured to not overlap in the time domain, thereby preventing resource conflicts while maintaining flexibility within each RAT's allocated resources.
Solution Approach 2:
The patent implements dynamic resource allocation where the network can configure and adjust resource sets for different RATs based on traffic conditions. The scheduling information dynamically assigns specific resources from the appropriate resource set, allowing the system to adapt to varying traffic demands while maintaining the non-overlapping structure that prevents conflicts.
2Reliability
If guaranteed resources are allocated for each RAT based on reference TDD configuration, then resource conflicts between RATs are reduced, but resource utilization efficiency decreases
Solution Approach 1:
The patent combines guaranteed resources with dynamic allocation. While resource sets are configured to not overlap (providing guaranteed resources for conflict prevention), the specific resources assigned within those sets are dynamically determined based on scheduling information and traffic conditions, thereby improving resource utilization efficiency while maintaining reliability.
Solution Approach 2:
The patent changes the parameter of resource allocation from static guaranteed allocation to a hybrid approach where the resource set structure is guaranteed (non-overlapping) but the specific resource assignments are dynamically adjusted based on traffic conditions, achieving both conflict reduction and improved efficiency.
3Productivity
If semi-static or dynamic resource allocation is implemented, then communication efficiency improves, but system complexity increases
Solution Approach 1:
The patent segments resources into distinct sets for different RATs with clear boundaries in the time domain. This segmentation simplifies resource management by providing clear rules for resource assignment (use resources from the appropriate non-overlapping set), reducing the complexity compared to managing overlapping resources while maintaining communication efficiency.
Solution Approach 2:
The patent creates a universal resource allocation framework that can handle multiple RATs (first RAT and second RAT) using the same non-overlapping resource set structure. This multi-functional approach simplifies system complexity by applying a consistent resource management strategy across different RATs rather than requiring separate complex management mechanisms for each RAT.
Data Source
AI summary
Certain aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive scheduling information for a transmission associated with a particular radio access technology (RAT) of a 4G RAT or a 5G RAT, wherein the scheduling information identifies a particular resource of one of a first set of resources for the 4G RAT or a second set of resources for the 5G RAT, wherein one or more resources of the first set of resources are guaranteed for the 4G RAT based at least in part on a reference 4G time division duplexing (TDD) configuration, and wherein the one or more resources of the first set of resources and the second set of resources do not overlap in a time domain; and transmit or receive the transmission using the particular resource. Numerous other aspects are provided.