Positioning Control Channel for Low-Latency Measurement Reports
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Solution Overview
Problem
There is a need to reduce latency between the trigger for positioning measurement and the receipt of the measurement report in wireless communication devices connected to a communications network via a radio link.
Innovation Solution
Implementing a control channel that includes an allocation configuration of resources for transmitting positioning related data, allowing the wireless communication device to monitor for positioning reference signals without the need for a dedicated scheduling request, thereby reducing latency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of time
If the UE sends an uplink scheduling request (SR) to the access node, then the UE can transmit the positioning measurement report, but the latency between triggering the positioning measurement and obtaining the measurement report increases
Solution Approach 1:
The network pre-configures uplink resources for positioning measurement reports before the UE needs to transmit them. The control channel provides allocation configuration of resources in advance, allowing the UE to immediately transmit measurement reports without waiting for scheduling requests and grants, thereby reducing latency while maintaining organized resource management
Solution Approach 2:
The patent extracts the scheduling request and grant exchange from the positioning measurement report transmission process. By providing dedicated pre-configured uplink resources through the control channel, the signaling steps of SR and UL grant are removed, directly reducing latency and simplifying the procedure
2Loss of time
If the UE monitors for positioning reference signals and transmits measurement reports using traditional scheduling, then resource allocation is managed, but the latency between positioning trigger and report receipt cannot be reduced
Solution Approach 1:
Uplink resources for positioning measurement reports are pre-allocated and configured in advance through the control channel. This preliminary configuration eliminates the need for real-time scheduling requests and grants, allowing immediate transmission of measurement reports upon completion, thereby reducing positioning latency and improving measurement efficiency
3Ease of operation
If dedicated scheduling requests are used for positioning measurement reports, then resource allocation is controlled, but the overall positioning process latency increases
Solution Approach 1:
The patent removes the scheduling request and grant exchange from the positioning measurement report transmission process. By providing dedicated pre-configured uplink resources through the control channel, the resource allocation control function is extracted from the real-time signaling exchange, eliminating latency while maintaining controlled resource allocation
Solution Approach 2:
Resource allocation for positioning measurement reports is performed in advance through control channel configuration rather than through real-time scheduling requests. This preliminary action maintains resource allocation control while eliminating the time-consuming SR-grant exchange, thereby reducing positioning latency
Data Source
AI summary
According to an aspect, a method is provided of operating a wireless communication device (UE) to provide positioning related data for determining a position estimate of the UE, the UE being connected to a communications network via a radio link, the method comprising: monitoring for a control channel associated with a positioning occasion in which the UE monitors for at least one positioning reference signal, wherein the control channel comprises an allocation configuration of resources for transmitting the positioning related data. According to further aspects, a method of operating a wireless communication device, a wireless communication device and an access node are provided.