Sensing Logical Channel Scheduling for Low-Latency SSR Uplink
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Solution Overview
Problem
Existing wireless communication systems, particularly in the context of 5G, face challenges in efficiently managing scheduling requests that include both data transmission and sensing requirements, especially in highly mobile environments requiring low-latency critical sensing.
Innovation Solution
The implementation of a method and system for user equipment (UE) to transmit a scheduling request (SR) for a sensing logical channel (SLC) and receive uplink resources for a sensing status report (SSR), allowing for joint data and sensing requests to prioritize either data transmission or sensing sessions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If joint data and sensing requests are implemented in scheduling requests, then UEs can efficiently manage both data transmission and sensing requirements, but the complexity of the scheduling request mechanism increases
Solution Approach 1:
The patent combines data scheduling requests and sensing scheduling requests into a single unified SR mechanism. The UE can transmit both types of requests simultaneously through the same SR resource, and the network can allocate both data UL resources and sensing UL resources in response to a single SR. This merging approach improves efficiency by reducing the number of separate request mechanisms while managing complexity through standardized handling procedures.
2Loss of time
If uplink resources are allocated for sensing status report transmission, then sensing sessions can be conducted with low latency, but the available resources for data transmission are reduced
Solution Approach 1:
The patent implements dynamic resource allocation where the network can flexibly adjust the amount of uplink resources allocated to sensing versus data transmission based on current network conditions and UE requirements. The SR mechanism allows UEs to indicate their sensing needs, and the network responds by allocating appropriate sensing UL resources while maintaining data UL resources. This dynamic approach enables low-latency sensing when needed while preserving data transmission capacity during normal operations.
3Measurement precision
If frequent sensing sessions are enabled, then positioning accuracy and environmental awareness are improved, but the signaling overhead and network load increase
Solution Approach 1:
The patent creates a universal SR mechanism that handles both data transmission requests and sensing requests through the same signaling channel. The sensing UL resources can be used for multiple purposes including positioning, environmental sensing, and channel measurement. This multi-functionality allows frequent sensing sessions to be conducted using the same infrastructure as data communication, thereby improving positioning accuracy while minimizing additional signaling overhead.
Data Source
AI summary
Disclosed are techniques for wireless communication. In an aspect, a user equipment (UE) may transmit, to a base station, a scheduling request (SR) including a request for a sensing logical channel (SLC) for a sensing session. The UE may receive, from the base station, an allocation of uplink resources for transmission of a sensing status report (SSR). The UE may transmit, to the base station, the SSR for the sensing session on the uplink resources based on the allocation.