Uplink Control Channel Segmentation for SRS Multiplexing
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
In wireless communication systems, existing technologies face challenges in efficiently transmitting uplink control channels and sounding reference symbols (SRS) due to resource overlap and limited bandwidth, which affects channel estimation and data transmission reliability.
Innovation Solution
A method and apparatus for a user equipment (UE) to segment the uplink control channel into sub-blocks and multiplex them with a localized SRS in the frequency domain, allowing simultaneous transmission and channel estimation, even when resources overlap, by using frequency division multiplexing and precoding techniques.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the uplink control channel and localized SRS are transmitted on overlapping resources, then resource utilization is improved, but transmission reliability deteriorates due to interference
Solution Approach 1:
The uplink control channel is segmented into multiple sub-blocks in the frequency domain. Each sub-block is then multiplexed with localized SRS in different frequency regions within the overlapping resources, allowing simultaneous transmission while reducing interference through frequency separation
Solution Approach 2:
The patent transitions from time-domain or single-frequency transmission to frequency-domain segmentation and multiplexing. By dividing the frequency band into multiple regions and assigning different sub-blocks and SRS to different frequency positions, the system achieves coexistence in the frequency dimension
2Productivity
If the uplink control channel is segmented into sub-blocks for multiplexing with localized SRS, then simultaneous transmission is enabled, but device complexity increases
Solution Approach 1:
The uplink control channel is divided into multiple sub-blocks along the frequency axis. Each sub-block can be independently processed and multiplexed with localized SRS, enabling efficient resource utilization while maintaining manageable processing complexity through modular structure
Solution Approach 2:
The segmented sub-blocks can be flexibly configured and multiplexed with localized SRS in various patterns depending on resource availability and channel conditions, providing a universal solution that adapts to different transmission scenarios
Data Source
AI summary
A method for transmitting, by a terminal, an uplink control channel and a localized SRS comprises the steps of: receiving, from a base station, first control information for triggering transmission of the uplink control channel and second control information for triggering transmission of the localized SRS; and if a transmission resource of the triggered uplink control channel overlaps with a transmission resource of the triggered localized SRS and the length of a frequency band of the localized SRS is shorter than or equal to the length of a coherent bandwidth, dividing the uplink control channel into a plurality of uplink control channel sub-blocks on a frequency domain and transmitting the divided uplink control channel sub-blocks, wherein the divided uplink control channel sub-blocks may be frequency division multiplexed with the triggered localized SRS and transmitted on one symbol.