Uplink Resource Blocks and TPC Power for Timed PUSCH Signals
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Solution Overview
Problem
Existing wireless communication systems face challenges in efficiently managing carrier aggregation and dual connectivity, particularly in handling increased data traffic and spectrum demands, especially in scenarios involving licensed and unlicensed spectrums, leading to inefficiencies in resource allocation and interference management.
Innovation Solution
Implementing carrier aggregation and dual connectivity mechanisms with advanced timing advance group configurations, listen-before-talk procedures, and adaptive energy detection thresholds to optimize resource utilization and interference management in licensed and unlicensed spectrums, enabling efficient multi-carrier communication.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If carrier aggregation and dual connectivity are implemented to handle increased data traffic, then network capacity and data rates are improved, but system complexity and interference management difficulty increase
Solution Approach 1:
The patent segments the spectrum into licensed and unlicensed carriers, and further divides unlicensed carriers into different sets based on their characteristics. This segmentation allows independent management and scheduling of different carrier types, reducing the complexity of handling the entire spectrum as a unified resource while maximizing data traffic capacity.
Solution Approach 2:
The patent implements dynamic scheduling mechanisms where the base station can flexibly allocate resources between licensed and unlicensed carriers based on real-time traffic conditions. The timing advance groups are dynamically configured to accommodate different propagation delays, enabling adaptive resource management that maintains high data rates while managing system complexity.
2Quantity of substance
If unlicensed spectrum is utilized to meet spectrum demands, then available bandwidth increases, but interference and collision probability increase
Solution Approach 1:
The patent implements listen-before-talk procedures where the wireless device performs clear channel assessment before transmitting on unlicensed carriers. This preliminary action detects existing transmissions and prevents collisions, enabling the device to access unlicensed spectrum safely and reduce interference while utilizing the available bandwidth.
Solution Approach 2:
The patent employs feedback mechanisms where the base station receives status information about unlicensed carrier usage and adjusts scheduling decisions accordingly. This feedback loop enables dynamic adaptation to interference conditions, allowing the system to maximize bandwidth utilization while maintaining acceptable interference levels through continuous monitoring and adjustment.
3Productivity
If timing advance groups are configured for multiple carrier aggregations, then resource allocation efficiency is improved, but configuration complexity and processing overhead increase
Solution Approach 1:
The patent designs timing advance groups that can serve multiple carrier aggregations and support both licensed and unlicensed carriers. This multi-functionality allows a single configuration framework to manage diverse carrier types, improving resource allocation efficiency across different network scenarios while avoiding the need for separate configuration mechanisms for each carrier type.
Solution Approach 2:
The patent dynamically adjusts timing advance parameters based on the specific carrier aggregation configuration and propagation conditions. By changing timing advance values adaptively rather than using fixed configurations, the system achieves efficient resource allocation for multiple carrier aggregations while reducing configuration complexity through parameter optimization rather than complex reconfiguration.
4Measurement precision
If adaptive energy detection thresholds are used for listen-before-talk, then channel access accuracy is improved, but processing time and energy consumption increase
Solution Approach 1:
The patent dynamically adjusts energy detection thresholds based on transmission power levels, carrier type, and interference conditions. This adaptive parameter adjustment enables accurate channel access detection across different operating scenarios while optimizing processing time by selecting appropriate threshold values rather than always performing maximum precision measurements.
Data Source
AI summary
A base station transmits, to a wireless device, downlink control information (DCI) indicating a transmit power control (TPC) command and first resource blocks (RBs). The base station receives, via subcarriers of the first RBs, an uplink signal and one or more transport blocks. The uplink signal and the one or more transport blocks employ a transmission power based on the TPC command. The uplink signal is received until a physical uplink shared channel (PUSCH) starting symbol. The one or more transport blocks starts at the PUSCH starting symbol.