Configuring Timing Gaps for Probing Pulse Signal Location Tracking
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current wireless communication systems face challenges in accurately tracking the location of user equipment (UE) within a wireless communications system, particularly in providing granular location information, as existing techniques do not effectively combine arrival latency and angle measurements from multiple devices to determine precise UE location.
Innovation Solution
The implementation of a method that configures a timing gap for a probing pulse signal, allowing devices to suspend communications and measure reflections of the signal, enabling multiple devices to estimate UE location based on arrival latency or angle, and updating communication configurations accordingly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If devices continue wireless communications during location probing, then communication continuity is maintained, but location measurement accuracy deteriorates due to interference
Solution Approach 1:
The wireless communication timeline is segmented into distinct phases: normal communication periods and timing gap periods dedicated to location probing. During timing gaps, devices suspend communications to eliminate interference with probing pulse signals, enabling accurate location measurements. This segmentation resolves the contradiction by isolating measurement activities from communication activities in time.
Solution Approach 2:
Location probing is performed periodically through configured timing gaps rather than continuously. The base station configures timing gaps with specific periodicity, allowing devices to alternate between communication mode and location measurement mode. This periodic approach maintains both communication productivity and measurement accuracy by providing dedicated intervals for each function.
2Measurement precision
If timing gaps are configured for location probing, then location tracking accuracy is improved, but communication efficiency deteriorates due to suspended transmissions
Solution Approach 1:
Instead of suspending all communications during timing gaps, the system uses partial action by allowing essential signaling to continue while suspending data transmissions. The timing gaps are configured to be just long enough to complete location measurements without excessive duration, minimizing communication loss while achieving sufficient location tracking accuracy.
Solution Approach 2:
The base station dynamically adjusts timing gap parameters including duration, periodicity, and offset based on UE mobility patterns and location accuracy requirements. When UE is stationary or moving slowly, timing gaps can be reduced or eliminated. When rapid movement is detected, timing gap frequency and duration are increased to maintain accurate location tracking, thus optimizing the balance between measurement precision and communication efficiency.
3Measurement precision
If multiple devices transmit probing pulse signals simultaneously, then location estimation accuracy is improved through combined measurements, but signal interference increases
Solution Approach 1:
The system resolves signal interference by adding a spatial dimension to the probing process. Multiple devices transmit probing pulses simultaneously but from different spatial locations and using different spatial resources (beam directions). The base station receives and processes these spatially-diverse signals, combining location estimates from multiple geometric perspectives to achieve accurate UE location determination without harmful interference between probing signals.
Solution Approach 2:
The base station acts as an intermediary that coordinates simultaneous probing transmissions from multiple devices. It assigns specific spatial resources and timing to each device's probing signal, manages the reception of reflected signals from different directions, and synthesizes the location estimates. This intermediary coordination enables multiple devices to contribute to location accuracy without their signals interfering with each other.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This approach enhances location tracking accuracy by combining location estimates from multiple devices, improving UE location determination and enabling quicker cell and beam selection, thus enhancing communication efficiency and reducing power consumption.
Implementation Method 1
The base station may transmit a probing pulse signal to the UE, which may reflect off the UE and be measured by the base station and one or more other devices
Data Source
AI summary
Methods, systems, and devices for wireless communications are described. A device may transmit, to a set of receiving devices, a configuration for probing a location of an object. The configuration may include a timing gap associated with at least one transmission window and a reception window for a probing pulse signal, and the configuration may indicate for the set of devices to suspend wireless communications during the timing gap to receive a reflection of the probing pulse signal. The device may transmit the probing pulse signal to the object during the transmission window. The device may receive the reflection of the probing pulse signal from the object during the reception window. In some cases, the device may update a communication configuration for the object, or another device associated with the object, based on the reflection of the probing pulse signal.