Frequency-Domain Scheduling for FDRSB Interference Mitigation
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing wireless communication systems face challenges in effectively mitigating frequency-dependent residual side band (FDRSB) interference, which affects the performance of user equipment (UE) in various telecommunication standards, including LTE and NR.
Innovation Solution
The proposed solution involves transmitting and receiving information between a UE and a network node to indicate FDRSB cancellation capability, allowing for frequency domain (FD) allocation assignments to mitigate FDRSB interference based on this capability, utilizing frequency-dependent residual side band cancellation techniques.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If frequency domain allocation is performed without considering FDRSB cancellation capability, then scheduling simplicity is maintained, but FDRSB interference mitigation performance deteriorates
Solution Approach 1:
The network node obtains FDRSB cancellation capability information from the UE in advance before performing frequency domain allocation. This preliminary acquisition of capability information allows the scheduler to make informed decisions about frequency resource allocation, ensuring that UEs are assigned frequencies that their cancellation capabilities can effectively handle, thereby improving FDRSB interference mitigation performance without adding complex real-time processing requirements.
Solution Approach 2:
The invention introduces a new parameter dimension (FDRSB cancellation capability) into the frequency domain allocation process. By categorizing UEs based on their FDRSB cancellation capabilities and adjusting frequency allocation strategies according to these capability levels, the system optimizes interference mitigation performance while maintaining scheduling manageability through structured parameter-based decision making.
2Reliability
If FDRSB cancellation capability information is transmitted and processed, then communication quality improves, but signaling overhead increases
Solution Approach 1:
The FDRSB cancellation capability information is integrated into existing uplink communication procedures, allowing the same signaling mechanism to serve multiple purposes: both conveying capability information for frequency allocation optimization and maintaining standard communication protocols. This multi-functional approach minimizes additional signaling overhead while improving communication quality.
3Productivity
If frequency domain allocation is optimized based on FDRSB cancellation capability, then spectral efficiency improves, but processing complexity increases
Solution Approach 1:
The invention segments UEs into different groups based on their FDRSB cancellation capabilities (e.g., capable vs. incapable). This segmentation allows the network node to apply different frequency allocation strategies to different UE groups, optimizing spectral efficiency for capable UEs while using simpler allocation methods for incapable UEs, thereby balancing processing complexity with performance improvement.
Data Source
AI summary
Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may transmit, to a network node, information that indicates a frequency dependent residual side band (FDRSB) cancellation capability. The UE may receive, from the network node, information that indicates a frequency domain (FD) allocation assigned to the UE to mitigate FDRSB interference at the UE based at least in part on the information that indicates the FDRSB cancellation capability. Numerous other aspects are described.