Rate Matching for Bundled Control Resource Sets in 5G Networks
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Solution Overview
Problem
5G New Radio (NR) networks provide significantly more bandwidth than current technologies, but some wireless devices are unable to utilize the full bandwidth due to hardware or resource limitations, leading to unused control resources that could be reused for payload data transmission.
Innovation Solution
The method involves reusing or reallocating unused downlink (DL) control resources for DL payload data transmission, which can be extended to uplink (UL) data transmission in both FDD and TDD configurations, allowing for efficient utilization of available resources across various telecommunication systems and network architectures.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If control resources are allocated for downlink control channels, then control channel reliability is improved, but resource utilization efficiency deteriorates due to unused control resources when devices cannot utilize full bandwidth
Solution Approach 1:
The patent applies multi-functionality by enabling control resources (CORESETs) to serve dual purposes: primarily for control channel transmissions and secondarily for data channel transmissions. When control resources are not fully utilized for control purposes, the same resources are reused for data transmission, allowing the system to adapt resource usage based on actual demand and improve overall resource utilization efficiency.
2Productivity
If full bandwidth is allocated for wireless communication, then network capacity is improved, but device compatibility deteriorates because not all devices can support or utilize the full bandwidth
Solution Approach 1:
The patent segments the bandwidth into multiple component carriers or frequency ranges, allowing different user equipment to utilize different portions of the total bandwidth based on their capabilities. This segmentation enables the network to maintain high overall capacity while ensuring compatibility with devices that cannot support the full bandwidth, as each device can be assigned appropriate frequency resources matching its capabilities.
3Productivity
If control resources are reused for payload data transmission, then resource utilization efficiency is improved, but control channel performance may deteriorate due to potential interference
Solution Approach 1:
The patent implements dynamic resource allocation where the same control resources (CORESETs) can be dynamically assigned for either control channel transmissions or data channel transmissions based on real-time network conditions and demand. This dynamic approach allows the system to optimize resource utilization by switching resource usage purposes, ensuring that control channel performance is maintained when needed while enabling data transmission when control resources are underutilized.
Data Source
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AI summary
A method and apparatus for determining rate matching behavior for a plurality of control resource sets (CORESETs) is provided. A base station (BS) bundles a plurality of CORESETs into a global resource set. The BS configures the global resource set for a User Equipment (UE). The BS determines resources assigned to a downlink data channel overlap at least a portion of the global resource set and determines whether data on the downlink data channel is to be rate matched around the global resource set or is to use resources in the global resource set. The BS transmits the data on the downlink data channel based on the determination of the rate matching.