UE Layer Control via RF Constraint Signaling
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current wireless communication systems lack an effective mechanism for user equipment (UE) to communicate RF resource constraints to the network, leading to inefficient scheduling and potential failures in transmitting or receiving the correct number of layers, especially in dual-subscriber identification module (SIM) dual-active (DSDA) scenarios where RF resources are shared across multiple subscriptions.
Innovation Solution
The UE detects RF resource constraints and transmits a preferred number of layers to the network using media access control (MAC) control elements or uplink control information (UCI), allowing the network to dynamically adjust layer scheduling based on the UE's capabilities and resource availability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the network schedules the UE based on maximum RF capability, then the potential data throughput is maximized, but transmission failures occur when RF resources are constrained
Solution Approach 1:
The patent implements dynamic layer indication where the UE can signal different preferred layer configurations based on current RF resource availability. The network scheduler can adjust the number of layers in real-time based on UE feedback, transitioning between maximum performance mode and constrained resource mode as conditions change.
Solution Approach 2:
The patent changes the parameter being signaled from fixed maximum capability to dynamic preferred configuration. By introducing new indication mechanisms that convey both capability and preference information, the system adapts the layer configuration parameter based on actual RF resource constraints while maintaining backward compatibility.
2Productivity
If the UE transmits detailed RF constraint information to the network, then scheduling efficiency improves, but signaling overhead increases
Solution Approach 1:
The patent makes existing uplink control channels multi-functional by enabling them to carry both traditional control information and new layer preference indications. This allows the same signaling resources to serve multiple purposes, reducing overall overhead while providing detailed constraint information to the network.
Solution Approach 2:
The patent discards the need for separate dedicated signaling channels for constraint information by recovering and reusing existing uplink control resources. This approach eliminates redundant signaling infrastructure while maintaining the ability to convey detailed RF constraint information efficiently.
Data Source
AI summary
This disclosure provides systems, methods and apparatus, including computer programs encoded on computer storage media, for a base station and a user equipment (UE) to communicate using a number of layers that is preferred by the UE. The UE and the network may communicate using radio frequency (RF) resources according to a number of layers corresponding to a capability of the UE. The UE may detect a constraint on the RF resources. The UE may transmit information of a preferred number of layers that is preferred by the UE to the network in response to the detecting. The base station may schedule the UE to communicate based on the preferred number of layers that is preferred by the UE.