LTE Resource Setting Control for Contention-Based Transmission
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current mechanisms for data transmission between user equipment and base transceiver stations in LTE networks face delays and reliability issues due to insufficient resources, particularly in contention-based transmission schemes, which increase latency and complexity while reducing available resources and supporting limited error detection and correction.
Innovation Solution
A method and apparatus that combine dedicated resources with contention-based resources using a mapping process based on predetermined rules and parameters, allowing for efficient allocation and identification of resources, reducing latency, and enabling error detection and correction mechanisms.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If contention-based resources are used for data transmission, then resource efficiency is improved, but transmission reliability deteriorates due to limited error detection and correction support
Solution Approach 1:
The patent combines dedicated resources and contention-based resources into a unified resource pool. The mapping mechanism allows the eNB to indicate contention-based resources to UEs through dedicated downlink control information, effectively merging the resource allocation approaches. This enables UEs to access contention-based resources with the reliability guarantees previously associated only with dedicated resources, thus improving transmission reliability while maintaining resource efficiency.
2Adaptability or versatility
If contention-based transmission is implemented, then resource allocation flexibility is improved, but system complexity increases due to mapping mechanisms and receiver processing requirements
Solution Approach 1:
The patent establishes predetermined mapping rules between dedicated resources and contention-based resources before transmission occurs. The eNB pre-configures the resource pool and mapping relationships, and communicates these to UEs through downlink control information. This preliminary setup allows receivers to efficiently determine which contention-based resources are allocated to which UEs without complex real-time analysis, reducing receiver complexity while maintaining allocation flexibility.
3Reliability
If dedicated resources are allocated to each user equipment, then transmission reliability is improved, but resource efficiency deteriorates due to insufficient resources when dedicated allocation is not available
Solution Approach 1:
The patent creates a universal resource pool that serves multiple functions: it can allocate resources to UEs in a dedicated manner when needed for reliability, and in a contention-based manner when resource efficiency is prioritized. The same pool of contention-based resources can be dynamically allocated to different UEs based on instantaneous needs, making the resource allocation system multi-functional and adaptable to different transmission requirements.
Data Source
AI summary
There is proposed a mechanism by means of which resources for a data transmission between a user equipment and a base transceiver station are set. For this purpose, a resource dedicated to the user equipment (like an SR resource) is combined with at least one contention based resource allocated to a contention based transmission by the user equipment (like a CB-PUSCH resource). The at least one contention based resource to be combined is selected by executing a mapping according to a predetermined rule and based on an information indicating a specific resource element dedicated to the user equipment to at least one set of available contention based resources, and by determining an information identifying at least one resource element of the at least one contention based resource.