On-Demand UCI Resource Allocation for PUCCH Reliability
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Solution Overview
Problem
Existing resource allocation methods for uplink control information (UCI) in wireless communication networks result in inefficient utilization of PUCCH resources due to unnecessary reservations when UEs do not actively transmit, leading to resource wastage and scarcity when multiple UEs require different types of UCI transmissions.
Innovation Solution
A method where user equipment (UE) requests UCI resources from a network node by transmitting a request message indicating the need for resources, which is then allocated by the network node, allowing efficient utilization of PUCCH resources based on UE capability and current UCI requirements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If PUCCH resources are pre-configured for all possible UCI transmission scenarios, then UCI transmission reliability is improved, but resource utilization efficiency deteriorates due to resource wastage when UEs are not actively transmitting
Solution Approach 1:
The patent implements dynamic resource allocation where PUCCH resources are not statically pre-configured for all scenarios but are instead allocated on-demand based on actual UCI transmission needs. The network node receives requests from UEs and dynamically assigns appropriate PUCCH resources, transforming the static resource configuration into a dynamic adaptation mechanism that matches resource provision with actual demand, thereby eliminating resource wastage while maintaining transmission reliability.
Solution Approach 2:
The patent enables UEs to autonomously determine when UCI transmission is needed and to send requests for PUCCH resources only when necessary. This self-service mechanism allows UEs to manage their own resource requirements without continuous network intervention, triggering resource allocation only when actual transmission needs arise, thus preventing resource wastage during idle periods while ensuring resources are available when needed.
2Reliability
If PUCCH resources are pre-allocated for multiple UEs, then UCI transmission is ensured, but resource scarcity occurs when multiple UEs require different types of UCI transmissions simultaneously
Solution Approach 1:
The patent implements dynamic resource allocation where PUCCH resources are not statically pre-configured for all scenarios but are instead allocated on-demand based on actual UCI transmission needs. The network node receives requests from UEs and dynamically assigns appropriate PUCCH resources, transforming the static resource configuration into a dynamic adaptation mechanism that matches resource provision with actual demand, thereby eliminating resource wastage while maintaining transmission reliability.
Solution Approach 2:
The patent changes the allocation parameters from fixed pre-configuration to flexible on-demand assignment. The network node adjusts resource allocation based on varying parameters such as UCI type, UE capability, and current network load conditions. This parameter-based dynamic allocation allows the system to adapt resource distribution to match actual transmission requirements, preventing both resource wastage and scarcity scenarios.
3Reliability
If large PUCCH resources are allocated for critical UCI transmissions, then transmission reliability is improved, but overall resource utilization deteriorates
Solution Approach 1:
The patent applies local quality by allocating PUCCH resources with characteristics specifically matched to the requirements of each UCI transmission type. Critical UCI transmissions receive larger, more robust resource allocations with higher reliability parameters, while less critical transmissions use smaller, more efficient resources. This localized optimization ensures that resource quality and quantity are precisely tailored to each transmission's actual needs, preventing both over-provisioning and under-provisioning.
Solution Approach 2:
The patent changes the allocation parameters from fixed pre-configuration to flexible on-demand assignment. The network node adjusts resource allocation based on varying parameters such as UCI type, UE capability, and current network load conditions. This parameter-based dynamic allocation allows the system to adapt resource distribution to match actual transmission requirements, preventing both resource wastage and scarcity scenarios.
Data Source
AI summary
Embodiments of the present disclosure provide a method, a user equipment, UE, a network node, and a computer program product for resource allocation for transmission of uplink control information, UCI, in a wireless communication network. The method is performed in a UE in the wireless communication network. The method includes transmitting a request message to the network node having information indicating that the UE has UCI to transmit which requires one or more UCI resources. The method also includes receiving an indication of one or more allocated UCI resources from the network node in response to the transmission of the request message. The method further includes transmitting the UCI using the one or more allocated UCI resources. Corresponding base station, UE, and computer program products are also disclosed.