SRS Frequency Hopping for Wider Coverage and Lower Interference
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Solution Overview
Problem
The coverage range and multiplexing capacity of Sounding Reference Signals (SRS) are limited, and they cause interference to adjacent cells in existing communication systems.
Innovation Solution
Implementing an SRS transmission method that includes transmitting SRS based on configuration information via signaling or agreed-upon rules, utilizing partial frequency hopping and frequency domain position adjustments to enhance coverage and reduce interference.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If SRS transmission uses fixed frequency resources, then resource allocation is simple, but coverage range is limited and interference occurs with adjacent cells
Solution Approach 1:
The patent implements dynamic frequency hopping for SRS transmission, where the frequency domain position of SRS resources changes over time according to hopping patterns. This allows the system to expand coverage range by utilizing multiple frequency resources while managing allocation complexity through pre-configured hopping rules
Solution Approach 2:
The patent divides the frequency spectrum into multiple subbands and allocates SRS resources across different subbands at different time instances. This segmentation approach expands the effective coverage area by distributing SRS transmissions across frequency segments, reducing interference with adjacent cells
2Productivity
If more UEs are multiplexed simultaneously, then system capacity increases, but SRS resources become insufficient and interference increases
Solution Approach 1:
The patent introduces time dimension through frequency hopping, transforming single-frequency SRS resources into multi-frequency resources over time. This dimensional expansion increases the effective resource pool, allowing more UEs to be multiplexed while maintaining adequate resource separation to reduce interference
Solution Approach 2:
The patent employs pre-configured frequency hopping patterns and resource allocation rules that are established in advance through higher-layer signaling. This preliminary configuration enables efficient multiplexing of multiple UEs by pre-planning resource usage, thereby reducing interference while maximizing system capacity
Data Source
AI summary
A Sounding Reference Signal (SRS) transmission method, device and system, a storage medium, and an electronic device are provided. The method includes: receiving configuration information sent by a first communication node via signaling, and transmitting an SRS to the first communication node based on the configuration information; or, transmitting an SRS to a first communication node according to a rule agreed upon with the first communication node.