Overlapping PUSCH Transmission Rules for Configured Grant Uplink
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Solution Overview
Problem
Existing wireless communication systems do not allow user equipments (UEs) to transmit multiple physical uplink shared channel (PUSCH) messages that overlap in time, requiring the UE to drop one of the overlapping messages according to conventional techniques.
Innovation Solution
UEs are configured with transmission configurations that define rules for simultaneously transmitting multiple overlapping PUSCH messages, including at least one configured grant PUSCH (CG-PUSCH) message, based on parameters such as PUSCH groups, logical channel priority, and types of PUSCH messages.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional techniques are used to handle overlapping PUSCH messages, then the system avoids transmission conflicts, but the communication capacity and resource utilization deteriorate due to dropping one of the messages
Solution Approach 1:
The patent segments PUSCH messages into different groups (first PUSCH group and second PUSCH group) based on their characteristics such as message type (configured grant vs. dynamic grant) or priority levels. This segmentation allows the UE to selectively transmit messages from different groups even when they overlap in time, thereby increasing communication capacity while maintaining transmission reliability through structured conflict management.
2Productivity
If multiple overlapping PUSCH messages are transmitted simultaneously, then the communication capacity improves, but the device complexity increases due to additional transmission configurations and rules
Solution Approach 1:
The patent applies local quality by assigning different transmission rules and configurations to different PUSCH groups. Each group can have its own prioritization scheme, overlap handling rules, and transmission parameters. This allows the system to manage complexity locally within each group while enabling overall increased capacity through the ability to transmit multiple grouped messages simultaneously.
3Productivity
If transmission rules based on PUSCH groups and priorities are implemented, then the resource utilization improves, but the ease of operation deteriorates due to more complex scheduling decisions
Solution Approach 1:
The patent implements preliminary action by pre-configuring PUSCH groups and their associated transmission rules before actual message transmission occurs. The base station provides signaling that defines the grouping criteria and transmission configurations in advance. This allows the UE to automatically apply the predetermined rules when overlapping messages occur, improving resource utilization while reducing the operational complexity during real-time transmission decisions.
Data Source
AI summary
Methods, systems, and devices for wireless communications are described. A user equipment (UE) may be configured to receive, from a base station, signaling that schedules a first uplink shared channel message and a second uplink shared channel message (e.g., physical uplink shared channel (PUSCH) messages) from the UE to the base station within a first component carrier. The first and second uplink shared channel messages may at least partially overlap, where at least one of the first or second uplink shared channel messages includes a configured grant uplink shared channel message (CG-PUSCH). The UE may transmit the first and second uplink shared channel messages to the base station in accordance with a transmission configuration for transmitting temporally overlapping uplink shared channel messages.