Multi-SIM Wireless Device Bandwidth Negotiation
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Solution Overview
Problem
Current wireless communication systems face challenges in efficiently managing radio resources and optimizing transmission mechanisms in multicarrier communication systems, particularly in radio access networks, where existing technologies struggle to dynamically adapt to varying radio conditions and user equipment capabilities.
Innovation Solution
The implementation of advanced radio access network architectures and protocols, including next-generation Node B (gNB) and evolved Node B (ng-eNB) nodes, which utilize advanced modulation schemes, dynamic bandwidth allocation, and multi-beam operations to optimize user plane and control plane protocol stacks, enabling efficient radio resource management and scheduling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If advanced modulation schemes and dynamic bandwidth allocation are implemented, then data transmission quality and network performance are improved, but device complexity and protocol stack complexity increase
Solution Approach 1:
The protocol stack is segmented into distinct layers (PHY, MAC, RLC, PDCP, RRC) with clearly defined functions at each layer. This segmentation allows complex communication tasks to be divided into manageable sub-tasks, improving reliability while controlling complexity through modular design.
Solution Approach 2:
The system implements dynamic bandwidth allocation and adaptive modulation schemes that adjust transmission parameters based on real-time radio conditions. This dynamic adaptation improves data transmission quality by optimizing resource allocation, while the structured protocol framework manages the resulting complexity.
2Productivity
If multi-beam operations and carrier aggregation are implemented, then network coverage and capacity are improved, but signal interference and resource management complexity increase
Solution Approach 1:
Multiple carriers and beams are segmented into distinct component carriers (CCs) and beam pairs, each managed independently through separate protocol instances. This segmentation enables efficient resource allocation across multiple frequencies and spatial directions, improving network capacity while isolating interference sources.
Solution Approach 2:
The protocol stack introduces intermediary layers (MAC and RLC) that mediate between multiple physical channels and higher-layer applications. These intermediaries manage resource allocation, handle scheduling, and coordinate transmissions across aggregated carriers, reducing resource management complexity and mitigating interference through structured control.
3Adaptability or versatility
If dual connectivity and multi-RAT operations are implemented, then user experience and service continuity are improved, but control signaling overhead and network coordination complexity increase
Solution Approach 1:
The protocol architecture implements universal functional elements that operate across multiple radio access technologies (E-UTRA and NR). Common protocols like PDCP and RLC provide multi-functional support for both LTE and 5G NR connections, enabling seamless dual connectivity while reducing redundant signaling through shared control mechanisms.
Solution Approach 2:
The system performs preliminary configuration and setup of dual connectivity parameters during initial network attachment and handover procedures. By pre-configuring bearer relationships, security contexts, and resource allocation patterns before actual data transmission begins, the system reduces control signaling overhead during active multi-RAT operations while maintaining service continuity.
Data Source
AI summary
A multi-subscribed identity module (multi-SIM) wireless device may receive, from a first base station of a first public land mobile network (PLMN), a first radio resource control (RRC) message comprising configuration parameters of a first cell of the first base station. The configuration parameters indicates a first bandwidth of the first cell. The multi-SIM wireless device may transmit, to a second base station of a second PLMN while communicating with the first PLMN, a second message indicating a second bandwidth for communicating with the second PLMN. The multi-SIM wireless device may communicate with the first PLMN based on the configuration parameters of the first cell.