System Information GID Mapping to Reduce Network Interference
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing wireless communication systems face inefficiencies in broadcasting group identities (GIDs) for non-public networks (NPNs), leading to increased network interference and capacity issues due to repetitive broadcasting of GIDs across multiple networks sharing the same group identity, which complicates network selection and authentication for user equipment (UEs).
Innovation Solution
Introduce an association parameter, such as a bitmap or list of indexes, to efficiently associate group identities (GIDs) with networks in system information, allowing GIDs to be broadcast less frequently and reducing overhead by using separate SIBs for GID information, thereby optimizing signaling and network selection processes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If GIDs are broadcast repeatedly across multiple networks sharing the same group identity, then network coverage and accessibility are improved, but network interference increases and capacity is reduced
Solution Approach 1:
The patent merges the broadcasting of GID information across multiple networks by introducing an association parameter that links a single GID to multiple network identities (PLMN IDs, NPN IDs). This allows the GID to be broadcast once per network instead of repeatedly across all networks, reducing overall broadcast traffic and network interference while maintaining accessibility.
Solution Approach 2:
The association parameter serves multiple functions: it associates GIDs with networks, enables UEs to identify accessible networks, and reduces broadcast overhead. This multi-functional approach allows the system to maintain comprehensive network coverage while minimizing the harmful effect of repeated GID broadcasting.
2Ease of operation
If GIDs are broadcast repeatedly across multiple networks, then UE can discover and access networks more easily, but signaling overhead and capacity consumption increase
Solution Approach 1:
The patent combines GID information with network identity information through the association parameter. Instead of broadcasting separate GID messages across multiple networks, the GID is associated with each network's identity in a unified broadcast message, reducing the total quantity of signaling while maintaining ease of network discovery for UEs.
Solution Approach 2:
The association parameter is pre-configured in the network to map GIDs to multiple network identities. This preliminary setup allows UEs to efficiently discover networks by checking the association parameter once, rather than requiring repeated GID broadcasts across all networks, thereby reducing signaling overhead while preserving ease of access.
3Productivity
If separate SIBs are used for GID information, then broadcast efficiency is improved and overhead is reduced, but system information complexity increases
Solution Approach 1:
The patent segments system information by introducing separate SIBs for GID-related information. This segmentation allows GID broadcasting to be independent from other system information, improving broadcast efficiency by allowing selective updates and targeted transmissions. The increased structure is organized into manageable segments that enhance overall system information management.
Solution Approach 2:
The association parameter acts as an intermediary between GID information and network identity information. This intermediary structure mediates the relationship between the simplified GID broadcast and the complex network identity mappings, allowing efficient broadcasting while managing the underlying complexity through a standardized association mechanism.
Data Source
AI summary
Embodiments herein relate to, for example, a method performed by a radio network node for handling communication in a wireless communications network. The radio network node transmits system information including an association parameter associating a GID with one or more networks in the SI.