User Equipment Frequency Generator Settings Sharing
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Solution Overview
Problem
In wireless communication networks, especially in 5G technologies, there is a challenge in managing frequency settings of user equipment (UE) frequency generators, as base stations often operate with outdated frequency settings, leading to interference and degraded performance due to the lack of real-time updates from UEs.
Innovation Solution
The UE modifies its initial frequency setting to generate a new frequency setting, which includes advanced features like fast frequency hopping or band jammer modes, and shares this updated setting with the base station through messages, such as UE assistance information messages or MAC control elements, allowing the base station to perform operations like DC cancellation or scheduling based on the latest frequency settings.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the base station operates with initial frequency settings, then the system complexity is reduced, but the transmit performance metrics (EVM, ACLR, SNR) deteriorate due to outdated frequency settings
Solution Approach 1:
The patent implements a feedback mechanism where the UE measures transmit performance metrics (EVM, ACLR, SNR) using the initial frequency settings and reports these measurements back to the base station. The base station then uses this feedback to determine whether to apply a frequency setting adjustment, creating a closed-loop system that improves performance while maintaining simplicity.
Solution Approach 2:
The patent applies frequency setting adjustments that were pre-determined based on UE capability information and network configuration. These adjustments are calculated in advance and stored, allowing the base station to quickly apply them without real-time computation, thus maintaining low complexity while improving performance metrics.
2Reliability
If the UE shares updated frequency settings with the base station, then the transmit performance metrics improve, but the signaling overhead increases
Solution Approach 1:
The patent extracts only the essential frequency setting adjustment information from the UE and transmits it to the base station using compact signaling formats. Instead of sharing complete frequency setting data, only the necessary adjustment parameters are communicated, reducing signaling overhead while maintaining performance improvement.
Solution Approach 2:
The patent changes the representation of frequency setting information from detailed absolute values to relative adjustments or offsets. This parameter transformation reduces the amount of signaling data required while preserving the essential information needed for performance optimization.
3Reliability
If the base station applies frequency setting adjustments, then the transmit performance metrics improve, but the device complexity increases
Solution Approach 1:
The base station pre-calculates and stores frequency setting adjustments based on UE capability information and network configuration before they are needed. When performance improvement is required, these pre-computed adjustments are simply applied without requiring complex real-time calculations, thus maintaining low processing complexity.
Solution Approach 2:
The base station uses copied or replicated frequency setting adjustment values that are derived from standardized formulas or pre-stored templates rather than computing unique adjustments for each scenario. This copying approach simplifies the processing complexity while maintaining the performance benefits.
Data Source
AI summary
Sharing of frequency generator settings in a network are disclosed. In a particular implementation, a method of wireless communication includes determining, by a user equipment (UE), a first frequency setting for a frequency generator of a UE. The first frequency setting is associated with a first frequency. The method includes modifying the first frequency setting to generate a second frequency setting for the frequency generator. The second frequency setting is associated with a second frequency that is different from the first frequency. The method also includes generating a message that indicates the second frequency setting. The method further includes transmitting the message from the UE to a base station.