UE Assistance Information for Dynamic MIMO Layer Adjustment
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Solution Overview
Problem
Existing wireless communication systems face challenges in efficiently providing assistance information for adjusting communication parameters such as uplink and downlink MIMO layers, scheduling offset, component carriers, and aggregated bandwidth, which are crucial for optimizing communication quality and power consumption.
Innovation Solution
A method and apparatus for a user equipment (UE) to transmit assistance information to a base station based on satisfying predetermined trigger thresholds, requesting adjustments to communication parameters such as reducing MIMO layers, increasing scheduling offset, or reducing component carriers and aggregated bandwidth, to improve communication efficiency and reduce power consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the UE operates with higher MIMO layers to improve communication capacity, then the data throughput is improved, but the power consumption increases
Solution Approach 1:
The patent implements dynamic MIMO layer adjustment where the UE can request changes in the number of MIMO layers based on real-time communication conditions. The base station can reconfigure the MIMO layers from higher to lower layers dynamically, allowing the system to adapt between high throughput mode and low power consumption mode according to channel conditions and UE capability
Solution Approach 2:
The patent changes the operational parameter of MIMO layers from a fixed configuration to a variable parameter that can be adjusted based on trigger conditions. When certain conditions are met (such as channel quality degradation or UE power constraints), the system transitions to a different MIMO layer configuration, effectively changing the communication parameter to balance throughput and power consumption
2Use of energy by moving object
If the UE requests reduction of MIMO layers to reduce power consumption, then the power consumption is reduced, but the communication efficiency decreases
Solution Approach 1:
The patent implements a feedback mechanism where the UE provides assistance information to the base station about its power consumption status or channel conditions. The base station uses this feedback to make informed decisions about whether to reduce MIMO layers, ensuring that the reduction is justified by actual needs rather than occurring arbitrarily, thus maintaining communication efficiency when possible
3Reliability
If the UE provides assistance information frequently to optimize communication parameters, then the communication quality is improved, but the signaling overhead increases
Solution Approach 1:
The patent implements periodic or event-driven assistance information reporting rather than continuous reporting. The UE provides assistance information periodically or only when specific trigger conditions are met (such as changes in channel quality, power status, or communication requirements), reducing the frequency of signaling while still maintaining optimal communication quality through timely updates
Data Source
AI summary
Methods, systems, and devices for wireless communications are described. In some systems, a user equipment (UE) may transmit assistance information to a base station to request an update or a modification to one or more communication parameters configured at the UE. Such communication parameters may include a quantity of uplink multiple-input multiple-output (MIMO) layers, a quantity of downlink MIMO layers, a minimum scheduling offset, a maximum quantity of component carriers, or a maximum aggregated bandwidth for a secondary cell group (SCG). In some implementations, the UE may transmit the assistance information requesting the update or modification to one or more of such communication parameters based on detecting that the UE satisfies one or more triggering conditions or thresholds.