Uplink Data Transmission Using Dynamic Resource Allocation
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Solution Overview
Problem
The increasing number of user equipment (UEs) requiring service from a base station (BS) in a limited resource region necessitates an efficient method for transmitting and receiving uplink/downlink data and control information, while also reducing latency and supporting new radio access technologies.
Innovation Solution
A method where a user equipment (UE) receives resource configuration information for a non-dedicated radio resource, attempts transmission using this resource, and requests a dedicated resource for retransmission if initial transmission is unsuccessful within a certain number of attempts or time period, with the base station (BS) providing resource configuration and receiving retransmissions using a dedicated resource.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If non-dedicated radio resources are used for uplink transmission, then resource utilization efficiency is improved, but transmission reliability deteriorates due to potential conflicts with other UEs
Solution Approach 1:
The patent implements dynamic resource allocation where the UE transitions from using non-dedicated shared resources to dedicated resources based on transmission success. The system dynamically adjusts the resource allocation state: initially using shared resources for efficiency, then switching to dedicated resources upon detecting transmission failures, thereby adapting resource usage to actual transmission needs and resolving the contradiction between efficiency and reliability.
2Reliability
If dedicated radio resources are allocated for retransmission, then transmission reliability is improved, but resource utilization efficiency deteriorates due to resource reservation
Solution Approach 1:
The patent applies preliminary action by pre-allocating dedicated resources for retransmission before actual retransmission occurs. When transmission failure is detected, the UE requests pre-configured dedicated resources, avoiding the need for complex real-time resource negotiation and ensuring immediate reliable retransmission. This preliminary preparation maintains reliability while minimizing long-term resource reservation, as dedicated resources are only activated when needed.
3Reliability
If multiple retransmission attempts are made using non-dedicated resources, then transmission reliability is improved, but latency increases due to repeated conflicts and failures
Solution Approach 1:
The patent introduces an intermediary mechanism where the base station plays a mediating role in resource allocation. When the UE detects transmission failure, it requests dedicated resources from the base station, which then allocates interference-free resources. This intermediary intervention resolves resource conflicts that would otherwise cause repeated transmission failures and latency, by coordinating resource allocation between the UE and the network.
Data Source
AI summary
In the present invention, a user equipment (UE) receives resource configuration information including information on a first radio resource not dedicated to the UE. The UE performs transmission of uplink data using the first radio resource. The UE transmits a request for radio resource dedicated to the UE for retransmission of the uplink data if the transmission of the uplink data using the first radio resource is not successful for a certain number of transmissions of the uplink data or for a certain period of time.