Uplink Transmission Service Selection Based on Physical Resource Characteristics
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Solution Overview
Problem
In 5G wireless communication systems, there is a lack of defined methods for terminals with multiple simultaneously active services to select which service to transmit data on uplink resources allocated by the base station, given the varying requirements of different services.
Innovation Solution
A method for a terminal to select a service or logical channel for uplink transmission based on physical layer properties of the allocated uplink resources, using logical channel prioritization (LCP) and additional indicators in the uplink grant, such as conservative MCS and transmission power boost, to determine the intended service for data transmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a terminal transmits data for multiple simultaneously active services on uplink resources allocated by the base station, then the data transmission capacity is improved, but it becomes difficult to meet the different quality of service requirements of each service
Solution Approach 1:
The patent segments the uplink data transmission by introducing service-specific logical channels (LCGs) and associating each active service with a dedicated logical channel group. This segmentation allows the terminal to separately manage and transmit data for different services through distinct logical channels, ensuring that each service's quality of service requirements can be independently satisfied while maintaining overall transmission efficiency
2Ease of operation
If the terminal selects services for transmission based on predefined priority rules, then the selection process is simplified, but it cannot adapt to the varying physical layer properties of allocated uplink resources
Solution Approach 1:
The patent introduces a dynamic service selection mechanism where the terminal determines which services to transmit based on the actual physical layer properties of the allocated uplink resources. The selection criteria adapt according to resource characteristics such as resource block allocation, modulation and coding scheme, and timing information, allowing the system to flexibly respond to varying channel conditions and resource availability while maintaining operational simplicity through automated decision-making
Data Source
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AI summary
The disclosure relates to a pre-fifth-generation (5G) or 5G communication system to be provided for supporting higher data rates beyond fourth-generation (4G) communication system such as long term evolution (LTE). A method of a terminal of a wireless communication system is provided. The method includes receiving information on mapping between at least one logical channel and profile information of at least one uplink grant from a base station, receiving the at least one uplink (UL) grant from the base station, and transmitting data based on the profile information of the at least one uplink grant and the mapping information.