Positioning Reference Signal Frequency Hopping With RF Adjustment Gaps
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Solution Overview
Problem
The limited radio frequency bandwidth of terminal devices in IoT scenarios hinders high-accuracy positioning, as they cannot transmit or receive positioning reference signals simultaneously, necessitating frequency-hopping transmissions, but lack adequate time intervals for radio frequency adjustments between hops.
Innovation Solution
A method and apparatus for resource configuration that determines frequency-hopping transmission resources for positioning reference signals, ensuring time intervals between hops by using resource configuration information, including transmission periods, offsets, and indication fields to manage frequency-hopping across or within resources.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If frequency-hopping transmission is used for positioning reference signal, then positioning accuracy is improved, but radio frequency adjustment time is insufficient between hops
Solution Approach 1:
The patent applies preliminary action by pre-configuring time offset parameters and resource allocation information before frequency-hopping transmission begins. The network device determines and signals time offset values that ensure sufficient radio frequency adjustment time is allocated between frequency hops, preventing timing conflicts while maintaining positioning accuracy.
Solution Approach 2:
The patent changes parameters by dynamically adjusting time offset values and resource allocation parameters based on terminal device capabilities and channel conditions. The network device configures different time offset parameters for different frequency hop configurations, optimizing the balance between positioning accuracy and radio frequency adjustment time.
2Ease of manufacture
If channel bandwidth of terminal device is reduced, then terminal cost is decreased, but positioning accuracy deteriorates
Solution Approach 1:
The patent applies segmentation by dividing the positioning reference signal transmission into multiple frequency hops across different time resources. This allows terminal devices with limited channel bandwidth to transmit and receive positioning reference signals on different frequency resources sequentially, achieving high positioning accuracy without requiring wide simultaneous bandwidth.
Solution Approach 2:
The patent uses periodic action through time-division multiplexing of frequency-hopped positioning reference signal transmissions. The network device configures periodic transmission opportunities with sufficient time offsets between hops, allowing terminal devices to perform radio frequency adjustments while maintaining accurate positioning measurements over the periodic transmission sequence.
3Measurement precision
If frequency-hopping transmission is implemented, then positioning needs are met, but data transmission may be affected
Solution Approach 1:
The patent resolves the conflict by moving positioning reference signal transmissions to the time dimension through frequency-hopping time-division multiplexing. By configuring time offsets and resource allocations in the time domain, the patent separates positioning transmissions from continuous data transmission in frequency resources, allowing both to coexist without mutual interference.
Data Source
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AI summary
The present application discloses a method, an apparatus, a chip, and a module device for resource configuration for a positioning reference signal. The method comprises: receiving, from a network device, resource configuration information of a positioning reference signal, the resource configuration information configuring resources for frequency-hopping transmission of the positioning reference signal; and determining resources for the frequency-hopping transmission of the positioning reference signal based on the resource configuration information. Based on the method described in the present application, resource configuration for frequency-hopping transmission of the positioning reference signal may be implemented.