SRS Frequency Hopping Timing for Overlapping Uplink Scheduling
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Solution Overview
Problem
Existing wireless communication systems face challenges in optimizing processing time for frequency hopping in New Radio (NR) networks, particularly in managing beam management and positioning services, which can lead to inefficiencies and increased latency.
Innovation Solution
Implementing frequency hopping techniques for positioning reference signals (PRS) in New Radio (NR) networks, including configuration parameters and signaling protocols to enhance beam management and reduce processing latency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If frequency hopping is implemented for positioning reference signals in NR networks, then positioning accuracy and beam management are improved, but processing time and system complexity increase
Solution Approach 1:
The patent applies preliminary action by pre-configuring frequency hopping parameters and patterns for positioning reference signals before actual positioning operations. The network pre-establishes the frequency hopping sequence, offset values, and duration parameters, allowing the UE to quickly execute positioning measurements without real-time calculation delays, thus improving positioning accuracy while minimizing processing time overhead.
Solution Approach 2:
The patent segments the frequency hopping process into distinct configurable parameters including hopping duration, frequency offset, and reference signal resource assignments. This segmentation allows independent optimization of each parameter to balance positioning precision requirements against processing time constraints, enabling flexible adaptation to different network conditions and service requirements.
2Productivity
If frequency hopping parameters are optimized for positioning services, then network performance is enhanced, but device complexity and configuration overhead increase
Solution Approach 1:
The patent implements universality by designing frequency hopping configuration parameters that serve multiple functions simultaneously. The same frequency hopping parameters are used for both positioning reference signals and beam management operations, allowing a single configuration set to enhance overall network performance across multiple services rather than requiring separate dedicated configurations for each function.
Solution Approach 2:
The patent employs parameter changes by introducing configurable frequency hopping parameters such as hopping duration, frequency offset values, and resource allocation patterns that can be dynamically adjusted based on network conditions. These parameter variations enable optimization of network performance for positioning services without requiring fundamental changes to the system architecture, thereby managing device complexity through flexible parameter tuning rather than structural complexity.
Data Source
AI summary
A method can include transmitting, by a wireless device, a user equipment (UE) capability message indicating a switching time for a sounding reference signal (SRS) frequency hopping. The method can also include receiving one or more configuration parameters indicating an SRS resource for the SRS frequency hopping. The method can further include receiving, via a physical downlink control channel (PDCCH) monitoring occasion, a downlink control information (DCI) scheduling an uplink transmission. The method can additionally include transmitting the uplink transmission and dropping an SRS transmission, on one or more SRS symbols of the one or more SRS resources, based on a time interval being at least a preparation time for the uplink transmission plus a switching time. The time interval can be from a last symbol of the PDCCH monitoring occasion. The one or more SRS symbols can overlap with the uplink transmission.


