UE Capability Signaling for TDD Configuration and Concurrent Transmission
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Solution Overview
Problem
Current wireless communication systems face challenges in efficiently managing multiple time division duplex (TDD) configurations across different bands, particularly in supporting concurrent transmission and reception, which affects network deployment and resource utilization.
Innovation Solution
The implementation of systems and methods that enable user equipment (UE) to signal its capability for different TDD configurations, concurrent transmission and reception, and uplink timing adjustments across various bands, allowing for flexible resource allocation and network optimization.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If wireless communication devices communicate using multiple channels or cells to improve communication capacity and speed, then communication performance is improved, but device complexity and resource management difficulty increase
Solution Approach 1:
The patent segments the communication system into multiple independent cells or carriers, each with its own TDD configuration. This allows the device to handle multiple channels simultaneously by dividing the overall communication task into manageable segments, improving communication capacity while maintaining manageable complexity through modular organization
Solution Approach 2:
The patent implements dynamic TDD configuration where uplink-downlink assignments can change over time across different cells. This dynamic adaptation allows the system to optimize communication capacity in real-time based on traffic conditions, resolving the contradiction between improved productivity and managed device complexity
2Adaptability or versatility
If different TDD configurations are used on different bands to improve resource utilization, then network flexibility is improved, but difficulty in managing concurrent transmission and reception increases
Solution Approach 1:
The patent applies local quality by allowing each band or cell to have its own specific TDD configuration tailored to local requirements. Different bands can have different uplink-downlink patterns optimized for their specific traffic needs, improving network flexibility while the systematic approach to managing these local variations reduces overall complexity
Solution Approach 2:
The patent changes the TDD configuration parameters independently for different bands and cells. By allowing flexible adjustment of uplink-downlink assignment parameters across multiple channels, the system achieves improved adaptability while systematic parameter management reduces the complexity of handling concurrent transmissions
3Productivity
If concurrent transmission and reception on different bands is supported to improve communication speed, then data throughput is improved, but interference management and signal quality deteriorate
Solution Approach 1:
The patent introduces an intermediary filtering mechanism that separates transmitted and received signals when operating in concurrent transmission and reception modes. This intermediary approach allows the device to achieve improved data throughput through full-duplex operation while the filtering intermediary reduces self-interference and maintains signal quality
4Ease of manufacture
If manufacturers produce UEs with varying RF capabilities to reduce manufacturing costs, then ease of manufacture is improved, but compatibility and service reliability may worsen
Solution Approach 1:
The patent uses parameter changes by allowing the system to adapt to different UE capability parameters. Manufacturers can produce UEs with varying RF capabilities (different parameters), and the network dynamically adjusts configuration parameters to match each device's capabilities, maintaining both manufacturing flexibility and service reliability
Solution Approach 2:
The patent implements feedback mechanisms where UEs report their capability parameters to the network, and the network responds with appropriate configuration. This feedback loop ensures that devices with varying manufacturing capabilities can all operate reliably by receiving customized configurations matched to their specific hardware parameters
Data Source
AI summary
A user equipment (UE) configured for signaling UE capability is described. The UE includes a processor and instructions stored in memory that is in electronic communication with the processor. The UE sends an indicator regarding whether the UE can support different time division duplex (TDD) configurations on different bands for a band combination. The UE also sends an indicator regarding whether the UE can support concurrent transmission and reception on different bands for the band combination. The UE additionally sends an indicator regarding whether the UE can support different uplink timing adjustments for the band combination.