SRS Bandwidth Position Adjustment for BWP Overlap
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Solution Overview
Problem
Current communication systems face challenges in efficiently transmitting and receiving sounding reference signals (SRS) in new radio access technology (NR) systems, particularly with wider bandwidths, which affects the performance of massive machine-type communications and ultra-reliable low-latency communications.
Innovation Solution
The method involves a user equipment (UE) and base station (BS) exchanging information about different bandwidth parts (BWP) for SRS transmission, allowing the UE to adjust the SRS bandwidth position based on overlap with a lower priority BWP, either by using a previous or next SRS bandwidth position, or by calculating a new position using a predetermined offset value, to prevent collisions and optimize SRS transmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If SRS transmission is performed in wider bandwidths in NR systems, then communication capacity is improved, but resource collision between different BWP configurations occurs
Solution Approach 1:
The patent changes the SRS bandwidth position parameter dynamically based on BWP configuration and overlap detection. When a lower priority BWP overlaps with a higher priority BWP, the SRS bandwidth position is adjusted to a different position, preventing resource collision while maintaining wide bandwidth utilization for high communication capacity
Solution Approach 2:
The patent introduces dynamic adjustment of SRS transmission parameters based on real-time BWP configuration status. The UE detects BWP overlap conditions and dynamically selects appropriate SRS bandwidth positions, making the system adaptable to different bandwidth configurations without fixed resource allocation
2Adaptability or versatility
If multiple BWP configurations are used for different services, then service versatility is improved, but resource collision between BWPs occurs
Solution Approach 1:
The patent applies preliminary anti-action by detecting BWP overlap conditions before SRS transmission occurs. The UE identifies potential resource collisions between different BWP configurations in advance and adjusts the SRS bandwidth position proactively, preventing harmful resource collisions before they occur
Solution Approach 2:
The patent applies local quality by making SRS transmission parameters service-specific and BWP-specific. Different services using different BWPs can have customized SRS bandwidth positions, allowing each service to optimize its resource allocation while avoiding collisions with other services
Data Source
AI summary
A method for transmitting an SRS by a terminal may comprise the steps of: receiving, from a base station, information on a first bandwidth part (BWP) and a second BWP set for SRS transmission of the terminal; and when a frequency starting position for SRS transmission in the second BWP having a lower priority than the first BWP overlaps the first BWP, transmitting the SRS to the base station at an SRS bandwidth position different from an SRS bandwidth position associated with the frequency starting position for the SRS transmission. The UE is capable of communicating with at least one of another UE, a UE related to an autonomous driving vehicle, a base station or a network.