UE Overlapping Downlink Reception Beam Switching
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Solution Overview
Problem
In wireless communications, overlapping downlink data channels with different scheduling configurations can lead to receiving errors due to resource allocation overlaps, especially when the time gap between allocations is insufficient for beam switching, resulting in inefficient communication and potential data loss.
Innovation Solution
A method and apparatus for a user equipment (UE) to transmit a capability message to a base station, receive control signalings scheduling multiple downlink messages, and selectively receive data based on resource allocations, priority, modulation and coding schemes, and transport block sizes, allowing for efficient reception of overlapping downlink data channels by switching to a common communication beam or utilizing a larger resource allocation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the UE receives multiple downlink data channels in the same time slot with different SPS configurations, then the spectral efficiency is improved, but receiving errors occur due to resource allocation overlaps and insufficient beam switching time gaps
Solution Approach 1:
The patent changes the beam parameter by switching to a common communication beam for receiving overlapping downlink data channels. When resource allocations overlap or beam switching time is insufficient, the UE switches both channels to use the same beam, eliminating beam switching requirements and enabling simultaneous reception without receiving errors
Solution Approach 2:
The patent resolves resource allocation conflicts by switching to a common beam dimension, allowing the UE to receive multiple downlink data channels that would otherwise conflict in time-frequency resources. This dimensional change in beam usage enables the UE to handle overlapping allocations that cannot be received through traditional time-division or frequency-division methods
2Productivity
If the UE switches between different communication beams for different downlink data channels, then the resource utilization is improved, but the beam switching gap requirement increases causing reception failures
Solution Approach 1:
The patent merges the beam usage for multiple downlink data channels by switching to a common communication beam. Instead of using different beams for different channels (which would require switching), the UE uses the same beam for both channels, eliminating the need for beam switching gaps and enabling continuous reception
Data Source
AI summary
Methods, systems, and devices for wireless communications are described. A wireless communications device, such as a user equipment (UE) may transmit a capability message indicating a capability of the UE to receive one or more downlink messages during a time slot, and may receive one or more control signalings which schedule a first and a second downlink message during the time slot, indicate a first resource allocation scheduled by a first scheduling configuration, and indicate a second resource allocation scheduled by a second scheduling configuration. The UE may monitor for one or both of the first downlink message or the second downlink message during the time slot based on the one or more control signalings and the capability message. The capability message may indicate a capability of the UE to receive a single downlink message or receive more than one downlink message during the time slot.