eRedCap Terminal Subband Allocation for 5G Control Channels
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current 5G mobile communication systems face challenges in efficiently supporting enhanced reduced capability user equipment (eRedCap) terminals, which require simplified data transmission and reception processes while maintaining system performance and reducing terminal complexity.
Innovation Solution
The method involves a terminal and base station configuration that processes and transmits control signals using a subset of subbands, allowing for efficient uplink and downlink data transmission and reception by the eRedCap terminal, specifically by receiving and transmitting physical downlink control channels and shared channels based on allocated subbands.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If eRedCap terminals use simplified data transmission processes, then terminal complexity is reduced, but system performance may deteriorate
Solution Approach 1:
The patent applies segmentation by dividing the bandwidth part into multiple subbands and selectively activating only the subband containing the PDSCH. This allows eRedCap terminals to process a reduced portion of the total bandwidth, lowering complexity while maintaining reliable data transmission through targeted resource allocation.
Solution Approach 2:
The patent implements local quality by configuring terminal-specific parameters including subband size, subband offset, and resource allocation patterns tailored to eRedCap capabilities. This localized optimization ensures that the simplified transmission process maintains adequate system performance for reduced capability terminals.
2Device complexity
If eRedCap terminals process only a subset of subbands, then processing complexity is reduced, but data transmission efficiency may worsen
Solution Approach 1:
The patent applies preliminary action by pre-configuring subband parameters, resource allocation patterns, and transmission timing information before actual data transmission. This allows eRedCap terminals to efficiently process only necessary subbands without sacrificing transmission efficiency, as all required information is prepared in advance.
Solution Approach 2:
The patent implements dynamics by enabling flexible adjustment of subband configurations, resource allocation patterns, and activation states based on traffic conditions and terminal capabilities. This dynamic resource management maintains data transmission efficiency while adapting processing complexity to eRedCap terminal capabilities.
Data Source
AI summary
The disclosure relates to a 5G or 6G communication system for supporting a higher data transmission rate. A method performed by a terminal in a wireless communication system is provided. The method includes obtaining information on a subset of subbands for a specific type of terminal, the subbands composing a bandwidth part, receiving, from a base station, a physical downlink control channel (PDCCH), and receiving, from the base station, a physical downlink shared channel (PDSCH) scheduled by the PDCCH, based on the subset of the subbands.