eLWA UE Rate Configuration via Capability Reporting
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Solution Overview
Problem
The existing rate configuration methods for LTE and WLAN networks in enhanced LTE-WLAN Aggregation (eLWA) systems face challenges due to dramatic differences in data transmission rates, leading to inefficiencies and potential data loss or underutilization of capabilities in eLWA user equipment (UE) when trying to simultaneously communicate over both LTE and WLAN connections.
Innovation Solution
The eLWA UE generates and reports indication information about its supported rate capabilities to the LTE base station, allowing the LTE base station to configure a higher rate for data transmission that is greater than the rate configured by the WLAN access point, enabling simultaneous communication at optimal rates.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the LTE eNB transmits data to the eLWA UE at a rate lower than the WLAN AP communication rate, then the LTE connection can be maintained, but the full capabilities of the eLWA UE cannot be realized and data transmission efficiency is reduced
Solution Approach 1:
The patent implements dynamic rate configuration where the LTE eNB adjusts transmission rates based on real-time feedback from the eLWA UE about its processing capabilities. The system transitions from static rate limiting to dynamic adaptation, allowing the LTE connection to operate at optimal rates that match the UE's actual ability to process data from both LTE and WLAN interfaces simultaneously.
Solution Approach 2:
The patent changes the rate parameter configuration by introducing new rate indication information that explicitly communicates the UE's maximum processing rate to the LTE eNB. This allows the system to configure appropriate rates for LTE data transmission that account for the UE's dual-interface processing constraints, rather than using fixed or conservative rate assumptions.
2Speed
If the LTE eNB transmits data at a higher rate than the UE can process, then data transmission speed increases, but data loss occurs when the UE is incapable of simultaneous communication over both connections
Solution Approach 1:
The patent establishes a feedback mechanism where the eLWA UE reports its rate capability and processing status to the LTE eNB. The UE provides explicit rate indication information about its maximum ability to process data from both LTE and WLAN interfaces, allowing the LTE eNB to adjust transmission rates dynamically to prevent buffer overflow and data loss while maximizing utilization of the UE's processing capacity.
3Productivity
If the WLAN AP configures a high rate for the eLWA UE, then WLAN data transmission is optimized, but the combined LTE-WLAN aggregation system cannot achieve efficient load balancing
Solution Approach 1:
The patent applies preliminary action by having the eLWA UE proactively report its rate capability to the LTE eNB before actual data transmission begins. This advance information allows the LTE eNB to pre-configure appropriate transmission rates and plan load distribution between LTE and WLAN interfaces, enabling efficient load balancing without requiring complex real-time negotiations during data flow.
Data Source
AI summary
The present disclosure relates to rate configuration methods and devices. In some embodiments, the method includes: generating indication information that indicates a rate capability supported by an enhanced LTE-WLAN aggregation user equipment (eLWA UE); and reporting the indication information to an LTE base station. The indication information indicates a first rate of the eLWA UE, and the first rate is greater than a second rate configured by a WLAN access point for the eLWA UE.