Dual-Stack RAN Access Control for Reduced UE Transmission Gaps
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Solution Overview
Problem
Dual stack access in wireless communications systems can result in limited UE capabilities and communication interruptions due to resource usage inefficiencies and transmission gaps.
Innovation Solution
A configuration message is used to enable or disable dual stack access by a user equipment (UE) based on activation information, allowing the UE to access multiple networks using different protocol stacks, thereby optimizing resource usage and reducing interruptions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If dual stack access is enabled for UE to communicate with multiple networks using different protocol stacks, then network coverage and service continuity are improved, but device complexity and resource consumption increase
Solution Approach 1:
The patent segments the protocol stack into multiple independent protocol stacks (first protocol stack for first network, second protocol stack for second network). Each protocol stack can be independently activated or deactivated based on network requirements, allowing the UE to manage complexity by only maintaining active protocol stacks rather than perpetually loading all possible stacks.
Solution Approach 2:
The patent implements dynamic activation and deactivation of protocol stacks based on network conditions and service requirements. The UE can switch between single-stack and dual-stack modes, and between different protocol stack combinations, allowing the system to adapt to changing conditions while maintaining service continuity.
2Adaptability or versatility
If dual stack access is enabled for UE to access multiple networks simultaneously, then network versatility and communication options are improved, but resource usage efficiency deteriorates
Solution Approach 1:
The patent enables dynamic switching between single-stack and dual-stack access modes based on network conditions, service requirements, and resource availability. The UE can activate dual-stack mode only when needed for specific services or network conditions, rather than maintaining it continuously, thus improving resource efficiency while preserving versatility.
Solution Approach 2:
The patent allows different protocol stacks to be activated for different networks and different services. Instead of uniformly enabling dual-stack for all communications, the system selectively activates specific protocol stacks based on local requirements (specific network, specific service), optimizing resource usage while maintaining versatility where needed.
3Adaptability or versatility
If UE maintains multiple protocol stacks for dual stack access, then network adaptability is improved, but transmission gaps and communication interruptions increase
Solution Approach 1:
The patent performs preliminary actions by pre-configuring multiple protocol stacks in the UE, so that when dual-stack access is needed, the stacks are already prepared and can be activated quickly without requiring time-consuming setup or configuration during transmission, thereby reducing transmission gaps.
Solution Approach 2:
The patent implements dynamic activation of protocol stacks, allowing the UE to switch between single-stack and dual-stack modes rapidly based on network conditions. This dynamic capability reduces the time needed to adapt to changing network requirements compared to static configurations.
Data Source
AI summary
Methods, systems, and devices for wireless communications are described. The described techniques may enable a network to indicate control information related to enabling or disabling a user equipment (UE) to access one or more radio access networks (RAN) simultaneously using dual stack (DS) access. For example, a UE may receive a configuration message indicating access information related to accessing a first network using a first protocol stack and accessing a second network using a second protocol stack. The control information may enable or disable the UE to access both of the first network and second network. The UE may accordingly access one or both of the first network and the second network using one or both of the first protocol stack and the second protocol stack, respectively, according to the control information.