Service-Based System Information Acquisition in Wireless Networks
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Solution Overview
Problem
Current wireless communication systems face challenges in efficiently acquiring and managing system information (SI) across multiple access technologies and network configurations, leading to potential interference and reduced performance.
Innovation Solution
The proposed solution involves a method and apparatus for enhanced SI delivery in wireless communication systems, where user equipment (UE) receives access SI, requests specific service SI data, and receives scheduling information for SI blocks, enabling flexible and efficient SI acquisition.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If system information is broadcast to all user equipment in wireless communication networks, then all UEs can access necessary network information, but network interference increases and energy consumption rises
Solution Approach 1:
The patent segments system information into multiple types (access SI and service SI) and delivers them through different mechanisms. Access SI is broadcast for initial access, while service SI is provided on-demand to specific UEs that have established connections. This segmentation reduces unnecessary broadcasts and associated interference while ensuring all UEs receive necessary information.
Solution Approach 2:
The patent implements a self-service mechanism where connected UEs autonomously request service SI from the network based on their specific needs. Instead of the network broadcasting all possible service information to all UEs, individual UEs self-initiate requests for the particular service SI data they require, reducing overall network traffic and interference.
2Reliability
If system information is provided through traditional broadcast methods, then network coverage is maintained, but information delivery efficiency and timeliness deteriorate
Solution Approach 1:
The patent applies preliminary action by first broadcasting access SI that contains essential information for initial network access and service SI availability indicators. This preliminary provision of critical information enables UEs to quickly determine what additional service SI they need to request, accelerating the overall information delivery process while maintaining reliable network coverage.
Solution Approach 2:
The patent introduces dynamics by transitioning from static broadcast-only SI delivery to a dynamic hybrid approach. The network dynamically switches between broadcast delivery (for access SI and coverage maintenance) and unicast on-demand delivery (for service SI), adapting the delivery method to the specific information type and UE connection state, thereby improving overall delivery efficiency.
3Loss of information
If all system information blocks are transmitted to every user equipment, then complete information availability is achieved, but network resource consumption and latency increase
Solution Approach 1:
The patent applies local quality by tailoring the information delivery to individual UE needs and connection states. Connected UEs receive specific service SI blocks relevant to their active services through targeted unicast transmissions, while idle UEs receive only access SI through broadcast. This localized, differentiated information delivery ensures each UE receives complete information necessary for its specific context without unnecessary overhead.
Solution Approach 2:
The patent extracts and separates service-specific information from the general broadcast channel. Service SI blocks that are not universally needed are extracted from the broadcast stream and delivered separately through unicast channels only to UEs that have established connections and explicitly requested them. This extraction eliminates redundant information transmission and reduces acquisition time for UEs that don't need specific service SI.
Data Source
AI summary
This disclosure provides systems, methods, and devices for wireless communication that enhanced system information delivery schemes. In a first aspect, a method of wireless communication includes receiving, by a user equipment (UE), access system information (SI) from a network device; transmitting, by the UE, a service SI request based on the received access SI, the service SI request indicating a request for particular service SI data; and receiving, by the UE, the particular service SI data, the particular service SI data including one or more SI blocks (SIBs), scheduling information for the one or more SIBs, or both. Other aspects and features are also claimed and described.