Broadcast System Information for Network Signaling Values
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Solution Overview
Problem
Current LTE technologies face challenges in managing network signaling values, particularly in frequency bands like E-UTRA band 13 and 26, which can lead to interference with public safety bands when UEs roam, as existing solutions either fail to provide sufficient protection or render UEs incompatible with operating standards.
Innovation Solution
The implementation of a broadcast system information mechanism that provides multiple network signaling values for a frequency band, allowing UEs to select the latest supported value, which can include additional emission requirements and A-MPR specifications, enabling gradual migration to new standards without breaking 3GPP release independency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If a single network signaling value is used for a frequency band, then device compatibility is maintained, but interference protection with public safety bands is insufficient
Solution Approach 1:
The patent segments the network signaling value into multiple distinct values (first NS value and second NS value) corresponding to different emission requirements. This allows the system to provide differentiated signaling for different public safety protection levels while maintaining compatibility with various UE types through selective application of appropriate NS values.
Solution Approach 2:
The patent introduces dynamic selection of network signaling values based on UE capabilities and roaming status. The system can dynamically choose which NS value to apply (first or second) depending on the specific UE type and public safety requirements, enabling adaptive interference protection without compromising device compatibility.
2Object-affected harmful factors
If additional emission requirements are imposed on UEs, then interference with public safety bands is reduced, but existing UEs may become incompatible with operating standards
Solution Approach 1:
The patent applies different emission requirements (first NS value vs. second NS value) based on local conditions - specifically whether the UE is roaming and its capability type. This localized application of stricter emission controls ensures public safety protection where needed while maintaining standard compatibility for non-roaming or legacy UEs.
Solution Approach 2:
The patent changes the network signaling parameter (NS value) based on UE capabilities and roaming status. By modifying which NS value is signaled to the UE, the system can enforce additional emission requirements for specific UE types without making existing UEs incompatible, as each UE receives the appropriate NS value for its capabilities.
3Adaptability or versatility
If multiple network signaling values are provided for a frequency band, then UEs can adapt to different emission requirements, but system complexity increases
Solution Approach 1:
The patent uses a universal frequency band indicator that serves multiple functions - it identifies the frequency band while also enabling the provision of multiple NS values. This multi-functional approach allows the system to support multiple emission requirements without adding significant complexity, as the existing band indicator mechanism is extended to carry additional NS value information.
Data Source
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AI summary
A method and apparatus can be configured to transmit broadcast system information to a user equipment. The broadcast system information can comprise a frequency band indicator that is used for a plurality of instances. Each instance of the plurality of instances can correspond to a separate network-signaling value.