Dynamic Beam Switching Delay Capability in Wireless UEs
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Solution Overview
Problem
Wireless communication systems face challenges in accommodating varying user needs due to fixed beam switching delay capabilities, leading to higher latency and power consumption issues as devices cannot dynamically adjust delays based on changing complexity, power, or memory requirements.
Innovation Solution
User equipment (UE) dynamically updates beam switching delay capabilities based on complexity, power, or memory needs, and communicates these changes to the network entity through uplink messages, allowing for flexible selection of beam switching delay times associated with different events, such as receiving channel state information signals with repetition.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If fixed beam switching delay capability is used, then device complexity is reduced, but adaptability to varying user needs deteriorates
Solution Approach 1:
The patent implements dynamic beam switching delay capability where the UE can change its beam switching delay value based on current operational conditions. The UE monitors its own complexity, power, and memory requirements and adjusts the beam switching delay accordingly, transitioning from a fixed parameter to a dynamic one that adapts to varying user needs without requiring complex network-side configuration.
Solution Approach 2:
The patent changes the beam switching delay parameter from a fixed value to a variable parameter that the UE can modify based on its operational state. The UE reports multiple capability values corresponding to different beam switching delay times, allowing the system to adjust this critical parameter dynamically to match actual user requirements while maintaining manageable device complexity.
2Loss of time
If beam switching delay is reduced, then latency is decreased, but power consumption increases
Solution Approach 1:
The patent enables dynamic adjustment of the beam switching delay parameter based on the UE's operational state. When the UE has sufficient power and computational resources, it can use shorter delay values to reduce latency. When power or memory resources are constrained, the UE can extend the delay to conserve energy, thus optimizing the trade-off between latency and power consumption based on actual device conditions.
Solution Approach 2:
The UE continuously monitors its own operational status including power availability, memory requirements, and processing capacity, and uses this feedback to adjust the beam switching delay accordingly. This self-adjusting mechanism allows the system to respond to changing energy and performance requirements in real-time, dynamically balancing latency and power consumption based on actual UE state.
3Adaptability or versatility
If multiple beam switching delay capabilities are supported, then adaptability improves, but device complexity increases
Solution Approach 1:
The patent segments the beam switching delay capabilities into discrete capability values that the UE can report to the network. Instead of requiring continuous or unlimited delay options, the UE reports a finite set of predefined capability values (e.g., first, second, and third beam switching delay times), making the complexity manageable while maintaining flexibility in adapting to different user needs.
Solution Approach 2:
The UE autonomously determines which beam switching delay capability to use based on its own operational conditions without requiring complex network-side control. The UE self-assesses its complexity, power, and memory requirements and selects the appropriate delay value accordingly, reducing the burden on the network to manage multiple capabilities while maintaining high adaptability.
Data Source
AI summary
Methods, systems, and devices for wireless communication are described. A user equipment (UE) may update a capability to a network entity periodically when the complexity, power, or memory needs of the UE change. The UE may additionally update the capability upon being triggered by a network entity, during a time scheduled by the network entity, upon the expiration of a timer, etc. The capabilities may be or include explicit values for beam switching delay, or an index selecting delay values from a table previously configured to the UE, for example. Additionally, The UE and network entity may support communications according to capability values associated with a time delay between a transmitted reference signal with repetition and the UE being ready for a downlink transmission using a beam selected based on the reference signal. This capability may indicate to the network entity to avoid scheduling downlink messages during the delay.