SRS Transmission Adjustment for URLLC–eMBB Uplink Interference
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Solution Overview
Problem
Uplink transmission interference occurs in mobile communications systems when a base station allocates time-frequency resources to URLLC terminal devices, affecting the efficiency of eMBB terminal devices.
Innovation Solution
A communication method where a terminal device adjusts the sending of uplink channels based on indication information from a network device to avoid overlap with conflicting time-frequency resources, ensuring accurate transmission and improving efficiency by discarding, skipping, or reassembling channels as necessary.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the base station allocates time-frequency resources to URLLC terminal device, then the URLLC data transmission is enabled, but uplink transmission interference is caused to eMBB terminal device
Solution Approach 1:
The patent extracts and removes the conflicting uplink channel transmission from the overlapping time-frequency resource. When the network device detects resource overlap between URLLC and eMBB allocations, it instructs the terminal to discard or skip the eMBB uplink channel transmission in the overlapping region, thereby eliminating the interference source while preserving URLLC transmission
Solution Approach 2:
Instead of allowing both transmissions and managing interference through complex coordination, the patent inverts the approach by selectively suppressing the eMBB transmission in favor of URLLC. The terminal device is instructed to adjust or discard uplink channel sending in overlapping resources, giving priority to URLLC and converting the interference problem into a resource allocation hierarchy
2Productivity
If the terminal device sends uplink channels on the second time-frequency resource, then the uplink control information is transmitted, but interference is caused to the first time-frequency resource
Solution Approach 1:
The patent introduces dynamic adjustment of uplink channel transmission based on real-time resource overlap detection. The terminal device receives indication information from the network device and dynamically decides whether to send, skip, or discard uplink channels based on the detected overlap between first and second time-frequency resources, making the transmission behavior adaptive rather than static
Solution Approach 2:
The patent changes the transmission parameter of uplink channels from fixed to variable based on resource allocation conditions. By modifying the sending behavior (transmit, skip, or discard) according to the overlap status of time-frequency resources, the system adjusts transmission parameters to eliminate interference while maintaining necessary control information flow
Data Source
AI summary
This application provides a communication method, and apparatus. The communication method includes: a terminal device receives indication information from a network device, wherein the indication information indicates a first time-frequency resource, the terminal device adjusts sending of a sounding reference signal (SRS) in a second time-frequency resource based on the indication information.