Uplink Interference Processing via Data Reconstruction
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Solution Overview
Problem
Existing uplink interference processing methods face challenges in improving transmission performance when there are bandwidth and delay constraints in the interaction channel between base stations, leading to inefficiencies in interference cancellation and increased interaction times.
Innovation Solution
The method involves a network device receiving scheduling and configuration information about a second UE, reconstructing and clearing uplink air interface data to reduce interference, and parsing the data based on this information to enhance transmission performance, while also managing HARQ processes and acknowledging errors to optimize bandwidth and delay usage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the base station receives uplink air interface data from both UEs and performs interference cancellation by reconstructing and clearing the interfering UE's data, then the uplink transmission performance of the interfered-with UE is improved, but the interaction time between base stations increases and bandwidth consumption increases
Solution Approach 1:
The base station performs preliminary actions by receiving and storing scheduling information and configuration information about the second UE before the interference cancellation process. This preliminary preparation allows the base station to quickly reconstruct and clear the interfering UE's data without requiring extensive real-time interaction, thus reducing the overall interaction time while maintaining reliable uplink transmission performance.
2Measurement precision
If the base station performs interference cancellation by reconstructing uplink air interface data of the interfering UE, then the parsing accuracy of the interfered-with UE's data is improved, but the bandwidth requirement for interaction between base stations increases
Solution Approach 1:
The base station extracts only the necessary scheduling information and configuration information about the second UE from the uplink air interface data, rather than processing and transmitting the complete data. This extraction approach allows the base station to reconstruct the interfering UE's data accurately for interference cancellation while significantly reducing the bandwidth requirement for interaction between base stations.
3Reliability
If the base station interacts with the neighboring base station three times to complete interference cancellation, then the interference suppression is effective, but the system complexity and interaction overhead increase
Solution Approach 1:
The base station merges multiple interaction steps into a more efficient process by utilizing the received scheduling information and configuration information to directly reconstruct and clear the interfering UE's data. This merging approach maintains effective interference suppression while reducing the number of interactions between base stations from three to a more streamlined process, thereby lowering system complexity.
Data Source
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AI summary
Embodiments of the present invention provide an uplink interference processing method, device and system. The method includes: receiving, by a first network device, information about second UE that is transmitted by a second network device; reconstructing uplink air interface data of the second UE according to the information about the second UE when uplink air interface data of the first UE is parsed incorrectly after first uplink air interface data is received, and obtaining the reconstructed uplink air interface data of the second UE; clearing the reconstructed uplink air interface data of the second UE from the first uplink air interface data to obtain second uplink air interface data; and parsing the second uplink air interface data according to information about the first UE, and obtaining a parsing result of the uplink air interface data of the first UE. In comparison with the prior art, times of interaction between network devices are reduced, and bandwidth and delay requirements are lowered. When there is a constraint of bandwidth and a delay of an interaction channel between network devices, uplink transmission performance of UE can be improved.