UE Capability Cost Signaling for Dynamic Radio Resource Budgeting
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Solution Overview
Problem
Current radio resource control (RRC) signaling systems cannot dynamically adjust user equipment (UE) capabilities during an RRC connected state, leading to inefficiencies as UE cannot support multiple resource-demanding features simultaneously due to fixed capability signaling, which requires detachment and re-attachment to the network.
Innovation Solution
A method where the UE determines and signals a processing cost burden for each radio capability and a maximum processing budget to the base station, allowing dynamic configuration of radio resources without exceeding the budget, effectively assigning 'price tags' to resource-demanding features and enabling flexible UE configuration adjustments.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the UE signals support for multiple resource-demanding features (F6 and F7) in UE capability information, then the UE can support these features consecutively, but the UE cannot support both features simultaneously due to resource constraints
Solution Approach 1:
The patent introduces cost parameters for each radio capability and a total cost parameter representing the UE's processing budget. By changing the signaling from binary capability indication to parameterized cost indication, the system enables dynamic configuration where the network can select capability combinations that fit within the UE's processing budget, allowing flexible support for multiple features without overcommitting resources
2Adaptability or versatility
If the UE detaches and re-attaches to the network to change UE capabilities, then the UE can update its capability configuration, but the process requires network detachment and re-establishment of RRC connection
Solution Approach 1:
The patent transforms the static UE capability signaling into a dynamic system where capabilities can be updated during the RRC connected state. The cost parameters for radio capabilities and the total processing budget are signaled periodically or on-demand, enabling real-time capability updates without requiring detachment and re-attachment, thus maintaining continuous connectivity while adapting to changing UE capabilities
3Ease of operation
If the UE signals unconditional support for capabilities, then the network can configure any feature combination, but the UE may not have sufficient resources to support all configured features simultaneously
Solution Approach 1:
The patent implements a feedback mechanism where the UE signals not only which capabilities it supports but also the cost associated with each capability and its total processing budget. This feedback enables the network to make informed configuration decisions that respect the UE's resource constraints, ensuring that configured features can be supported simultaneously without overloading the UE's processing capacity
4Adaptability or versatility
If multiple profiles are defined for UE capabilities, then the system can support different feature combinations, but the number of profiles and signaling options must be high to allow flexibility
Solution Approach 1:
The patent segments the UE capability information into individual cost parameters for each radio capability rather than grouping them into predefined profiles. This segmentation allows the network to freely combine capabilities based on the signaled cost parameters and total budget, achieving high flexibility without the complexity of managing multiple profiles and their associated signaling overhead
Data Source
AI summary
The invention provides a method performed by a user equipment, UE, device for signalling a radio resource capability of the UE device to a base station, the method comprising determining a processing cost burden for each of one or more radio capabilities of the user equipment device, the processing cost burden being a numerical value representative of at least one of a computational power demand, a memory demand, a data throughput demand, and a radio bandwidth demand for implementing the radio capability; determining a maximum processing budget of the UE device; and transmitting one or more messages to the base station informing the base station as to the processing cost burdens of the radio capabilities and the maximum processing budget.