UE Capability Signaling for Concurrent Channel Transmissions
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Solution Overview
Problem
Wireless communication systems often overschedule uplink transmissions for user equipment (UE), exceeding its capability, leading to inefficiencies and potential radio frequency implementation challenges.
Innovation Solution
The UE determines its capability for concurrent channel transmissions and reports this to the base station, which schedules transmissions accordingly, allowing the UE to group and prioritize channels to manage concurrent transmissions within its maximum supported capacity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the base station schedules more uplink transmissions for the UE, then the productivity and resource utilization are improved, but the device complexity and radio frequency implementation difficulty increase beyond the UE capability
Solution Approach 1:
The UE segments the scheduled uplink transmissions into multiple groups, where each group contains one or more channels. The UE then transmits up to a maximum number of groups simultaneously, dividing the overscheduled transmissions into manageable segments that fit within the UE's concurrent transmission capability.
Solution Approach 2:
The UE performs preliminary grouping of scheduled channels before transmission, organizing them into groups based on priority and capability constraints. This preliminary organization allows the UE to efficiently select which groups to transmit when the number of scheduled channels exceeds the maximum concurrent transmission capability.
2Productivity
If the base station schedules more uplink transmissions for the UE, then the resource utilization is improved, but the reliability of transmission quality deteriorates due to overscheduling
Solution Approach 1:
The UE applies different priority levels to different groups of channels, ensuring that high-priority channels (such as those carrying critical control information) are transmitted first. This local quality differentiation ensures that even when transmissions are overscheduled, the most important data maintains reliable transmission quality.
Solution Approach 2:
The UE performs preliminary prioritization and grouping of channels before transmission, organizing them into groups based on priority and capability constraints. This preliminary organization allows the UE to efficiently select which groups to transmit when the number of scheduled channels exceeds the maximum concurrent transmission capability, ensuring high-priority transmissions are maintained.
3Productivity
If the UE transmits more concurrent channels, then the productivity increases, but the ease of operation and radio frequency implementation become more difficult
Solution Approach 1:
The UE segments the scheduled uplink transmissions into multiple groups, where each group contains one or more channels. The UE then transmits up to a maximum number of groups simultaneously, dividing the overscheduled transmissions into manageable segments that fit within the UE's concurrent transmission capability, thereby simplifying radio frequency implementation.
Solution Approach 2:
The UE dynamically adjusts the number of concurrent transmissions based on its current capability and the scheduled channels. When the number of scheduled channels exceeds the maximum capability, the UE adapts by selecting and grouping channels to transmit within the supported limit, making the system flexible and easier to operate.
Data Source
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AI summary
Methods, systems, and devices for wireless communications are described. A user equipment (UE) may identify a capability of the UE to support concurrent transmissions on a maximum number of channels, and may report the capability to a base station. The UE may identify that the UE 115 is scheduled to concurrently transmit on a scheduled number of channels. In some cases, the scheduled number of channels may exceed the maximum number of channels supported for concurrent transmissions by the UE. In some cases, the UE may then transmit one or more concurrent transmissions to the base station, the one or more concurrent transmissions being less than or equal to the maximum number of channels supported for concurrent transmission by the UE.