Hybrid Indication Scheme for Wireless Resource Reassignment
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Solution Overview
Problem
Current wireless communication systems, such as LTE, do not effectively support the coexistence of high bandwidth communications and low latency, high reliability communications, particularly in scenarios requiring bursty and unpredictable transmissions like mission-critical traffic.
Innovation Solution
A hybrid indication scheme is implemented where a base station identifies resources originally allocated for mobile broadband communications and reassigned them for low latency communications, using a combination of current and post indications to efficiently transmit resource information to user equipment, reducing overhead and latency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of time
If resources are reassigned from mobile broadband to low latency communications, then low latency communication performance is improved, but mobile broadband throughput deteriorates
Solution Approach 1:
The system dynamically reassesses and reassigns resources between mobile broadband and low latency communications based on real-time traffic conditions. The base station monitors traffic patterns and adjusts resource allocation adaptively, allowing resources to be reassigned when low latency traffic is detected and returned when not needed, thus resolving the contradiction between maintaining low latency performance and preserving mobile broadband throughput
Solution Approach 2:
The system changes the operational parameters of resource blocks by altering their assignment state between different communication types. Resource blocks can be dynamically switched between mobile broadband and low latency communication modes based on traffic demand, enabling the system to optimize for latency when needed while maintaining throughput under normal conditions
2Measurement precision
If resource reassignment indication is transmitted frequently, then resource reallocation accuracy is improved, but control overhead increases
Solution Approach 1:
The system extracts only the essential information needed for resource reassignment indication, transmitting only the necessary resource block identifiers and assignment states rather than complete resource allocation details. This selective information transmission maintains accuracy while minimizing control overhead
Solution Approach 2:
The system transmits resource reassignment indications selectively rather than continuously, performing partial updates only when resource assignments change. This approach avoids unnecessary transmission overhead while ensuring that accurate resource information is conveyed when needed for proper resource allocation
Data Source
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AI summary
Methods, systems, and devices for wireless communication are described. Some wireless communications systems support mobile broadband (MBB) communications and low latency communications. To accommodate low latency communications, a base station may identify resources allocated for MBB communications, and the base station may reassign (or puncture) these resources for low latency communications. The base station may transmit an indication of the reassigned (or punctured) resources to one or more user equipments (UEs). The base station may transmit an indication of the reassigned resources over a designated indication channel during a time period that is being reassigned for low latency communications (e.g., using a current indication). The base station may also transmit another or complementary indication of the reassigned resources in a subsequent time period (e.g., using a post indication), which may include supplemental or additional information.