User Equipment Spectrum Emission Requirement Management
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Solution Overview
Problem
Conventional wireless communications systems face limitations in managing spectrum emission requirements, particularly when new operators need to deploy LTE in different countries with overlapping band designations, and when user equipment must comply with additional spectrum emission requirements not originally defined for existing bands.
Innovation Solution
A method for user equipment in a wireless communications network to receive and compare spectrum emission requirement values, including additional values, with its capability values, allowing it to determine its behavior and operate accordingly, thereby enabling the introduction of new spectrum emission requirements by network operators.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If a more stringent spectrum emission requirement value is applied, then emission performance is improved, but coverage and throughput are limited
Solution Approach 1:
The patent implements dynamic selection of spectrum emission requirement values by the user equipment. Instead of being forced to use a single stringent NS value, the UE can dynamically select from multiple NS values (NS1, NS2, NS3) based on its capability and the specific deployment scenario, allowing optimization between emission performance and coverage/throughput for each connection.
Solution Approach 2:
The patent changes the parameter of spectrum emission requirement from a fixed single value to a set of multiple values (NS1, NS2, NS3 with different stringency levels). This allows the system to adjust the emission requirement parameter according to different deployment needs while maintaining backward compatibility with existing UEs.
2Adaptability or versatility
If additional spectrum emission requirement values are defined for existing band designations, then adaptability to new deployment scenarios is improved, but device complexity increases
Solution Approach 1:
The patent segments the spectrum emission requirement into multiple discrete NS values (NS1, NS2, NS3) that can be independently selected. Each NS value represents a different emission requirement level, allowing the UE to segment its operation modes and select the appropriate one for each deployment scenario without redesigning the entire system.
Solution Approach 2:
The patent makes the spectrum emission requirement dynamic by allowing the UE to select from multiple NS values based on its capability and the network's requirements. This dynamic selection mechanism adds adaptability while keeping the UE implementation relatively simple through standardized selection criteria.
3Reliability
If all user equipments must support all NS values defined for a band designation, then reliability of spectrum emission compliance is improved, but ease of operation deteriorates
Solution Approach 1:
The patent applies local quality by allowing different NS values to be applied to different UEs or different connections based on specific deployment requirements. Instead of forcing all UEs to support all NS values universally, each UE can be configured with the appropriate NS value for its specific operating context, making operation easier while maintaining compliance reliability.
Solution Approach 2:
The patent enables dynamic NS value selection where the UE can adapt its emission requirement based on the specific deployment scenario and its own capability. This dynamic approach maintains reliable compliance by ensuring the appropriate NS value is used while simplifying operation by allowing the UE to automatically select from predefined options rather than requiring manual configuration for each scenario.
Data Source
AI summary
A user equipment (2) has an ability to operate according to one or more spectrum emission requirement capability values (14) in a wireless communications network having at least a first serving cell (4). A message (6) is received at the user equipment (2) from the first serving cell (4) comprising a first indicator representing a first band designation (8), a second indicator representing a spectrum emission requirement value (10), and at least one additional indicator representing at least one additional spectrum emission requirement value (12), both the first and additional indicators relating to the first band designation. The user equipment (2) performs a comparison of the first and additional spectrum emission requirement values (10, 12) with the one or more spectrum emission requirement capability values (14) and determines a behaviour of the user equipment (2) in relation to the first serving cell (4) in dependence on the comparison.