High-Priority Data Transmission Handling in Wireless Systems
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Solution Overview
Problem
In wireless communication systems, high-priority data transmission is delayed due to scheduling conflicts and interference in full-duplex mode, where base stations are already engaged in scheduled uplink or downlink transmissions, leading to performance degradation.
Innovation Solution
User equipment (UE) transmits high-priority data using unscheduled uplink beams or indications during scheduled downlink or uplink transmissions, and base stations receive this data by reconfiguring transmission configurations or canceling scheduled transmissions to enable full-duplex operation, ensuring timely delivery within acceptable latency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the base station uses scheduled uplink or downlink transmissions, then the system maintains reliable communication protocols, but high-priority data transmission is delayed due to scheduling conflicts
Solution Approach 1:
The base station pre-allocates dedicated uplink beams for unscheduled uplink transmissions and configures them before high-priority data arrives. When high-priority data needs transmission, the UE can immediately use these pre-configured beams without waiting for scheduling decisions, thus reducing latency while maintaining system reliability through prior preparation
Solution Approach 2:
The system dynamically switches between scheduled and unscheduled transmission modes based on data priority. For high-priority data, the system activates unscheduled uplink beams that operate independently from the scheduled transmission framework, allowing flexible adaptation to urgent transmission needs without disrupting ongoing scheduled communications
2Productivity
If the base station operates in full-duplex mode with concurrent uplink and downlink transmissions, then spectrum efficiency is improved, but interference occurs between simultaneous transmissions
Solution Approach 1:
The system segments uplink transmissions into scheduled and unscheduled categories with dedicated beam resources. Unscheduled uplink beams are spatially separated from scheduled transmission beams, allowing concurrent operations without interference. This segmentation enables full-duplex operation by creating independent transmission paths that coexist without harmful interactions
Solution Approach 2:
Dedicated unscheduled uplink beams act as intermediaries that carry high-priority data independently from the scheduled transmission framework. These intermediary beams provide a separate communication channel that mediates between the need for urgent data transmission and the ongoing scheduled transmissions, enabling concurrent operations without interference
3Ease of operation
If the UE waits for scheduled transmission completion before transmitting high-priority data, then system protocol compliance is maintained, but transmission latency increases
Solution Approach 1:
The system performs preliminary configuration of unscheduled uplink beams and resources before high-priority data transmission needs arise. This advance preparation includes allocating beam resources and configuring transmission parameters, so when urgent data arrives, the UE can immediately transmit using pre-configured resources without waiting for scheduling decisions or protocol handshakes
Solution Approach 2:
The UE is empowered to autonomously transmit high-priority data using unscheduled uplink beams without requiring base station scheduling decisions or protocol approvals. This self-service capability allows the UE to bypass the scheduled transmission framework for urgent data, maintaining protocol compliance for regular traffic while enabling immediate transmission for high-priority data
Data Source
AI summary
A user equipment (UE) may obtain high-priority data (e.g., low latency data) to be transmitted to a base station. In some scenarios, the base station may be transmitting downlink transmissions to the UE or to a different UE, or may be receiving uplink transmissions from the UE or from the different UE. The described aspects enable the UE to timely transmit the high-priority data in these scenarios. In one example, the described aspects enable the UE to transmit, to the base station, while the base station performs one or more scheduled downlink transmissions to the UE or to the different UE, at least one of the high-priority data via a first uplink beam from a set of uplink beams for unscheduled uplink transmissions or an unscheduled data indication indicating that the high-priority data is to be transmitted without an uplink grant.