PUSCH Processing Period Management for Carrier Aggregation
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current multicarrier communication systems face challenges in efficiently managing carrier aggregation and dual connectivity, particularly in handling high data traffic demands and spectrum limitations, which affect network capacity and user experience.
Innovation Solution
The implementation of advanced OFDM technologies with carrier aggregation and dual connectivity mechanisms, including dynamic modulation and coding schemes, adaptive energy detection for unlicensed spectrum use, and efficient resource allocation strategies to optimize network performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If carrier aggregation and dual connectivity mechanisms are implemented to increase network capacity, then data traffic handling capability is improved, but system complexity increases
Solution Approach 1:
The patent segments the uplink shared channel processing into distinct time periods (first time period for first carrier, second time period for second carrier) to handle multiple carriers independently, thereby managing system complexity while maintaining high network capacity through carrier aggregation and dual connectivity
2Productivity
If multiple carriers are aggregated to support high data rates, then throughput is improved, but resource allocation complexity increases
Solution Approach 1:
The patent implements dynamic resource allocation by assigning different time periods to different carriers based on traffic demands and channel conditions, allowing the system to adaptively optimize resource distribution across aggregated carriers while supporting high data rates
3Productivity
If unlicensed spectrum is utilized to expand available bandwidth, then network capacity is improved, but interference management difficulty increases
Solution Approach 1:
The patent introduces timing advance commands as an intermediary mechanism to coordinate uplink transmissions from multiple carriers, enabling the system to manage interference in unlicensed spectrum by synchronizing transmissions and preventing collisions between different carrier signals
Data Source
AI summary
A base station receives, from a wireless device, a wireless device capability message comprising at least one parameter indicating a first physical uplink shared channel (PUSCH) processing capability of the wireless device. The base station determines, based on the first PUSCH processing capability of the wireless device, a PUSCH preparation time indicating a period between a reception time of a downlink control information (DCI) comprising a resource assignment and a PUSCH transmission time of the resource assignment. The base station transmits, to the wireless device, a first DCI indicating a first resource assignment for a first PUSCH transmission, wherein the first resource assignment occurs no earlier than the PUSCH preparation time from when the first DCI is received by the wireless device. And, the base station receives the first PUSCH transmission via the first resource assignment.