Serving Cell Measurement for Active BWP SSB Alignment
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Solution Overview
Problem
Existing wireless communication systems face challenges in efficiently managing serving cell measurement objects associated with active bandwidth parts (BWPs), particularly in determining synchronization signal block (SSB) frequencies, which affects the performance of user equipment (UE) in wireless networks.
Innovation Solution
The implementation of a configuration mechanism that indicates measurement objects, including SSB frequencies, based on an active BWP, allowing UEs and network entities to determine serving cell measurement objects, thereby aligning SSB frequencies with the active BWP for improved communication performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If measurement objects are configured with fixed SSB frequencies independent of active BWP, then configuration simplicity is maintained, but measurement accuracy deteriorates due to misalignment with active BWP
Solution Approach 1:
The patent applies dynamics by making the serving cell measurement object dynamically associated with the active bandwidth part (BWP). When the UE switches between different BWPs, the measurement object automatically switches to correspond to the SSB frequency of the currently active BWP, rather than being fixed to a single frequency. This dynamic association ensures measurement accuracy is maintained across different BWP configurations without requiring complex manual reconfiguration.
Solution Approach 2:
The patent implements self-service through the UE's autonomous determination of the serving cell measurement object based on the active BWP. The UE automatically identifies which measurement object corresponds to the current active BWP's SSB frequency and uses that for measurements, without requiring network intervention or manual configuration for each BWP switch. This self-service mechanism simplifies the overall system while maintaining measurement precision.
2Adaptability or versatility
If multiple measurement objects are configured for different BWPs, then measurement adaptability improves, but device complexity increases due to multiple configuration parameters
Solution Approach 1:
The patent applies universality by designing the measurement object configuration to serve multiple BWPs through a single unified structure. Each measurement object is configured with an SSB frequency that can be associated with different BWPs, allowing the same measurement object to be universally applicable across multiple bandwidth parts. This eliminates the need for separate dedicated measurement objects for each BWP, reducing configuration complexity while maintaining full adaptability.
Solution Approach 2:
The patent implements preliminary action by pre-configuring multiple measurement objects with different SSB frequencies corresponding to different BWPs before the UE operates. The network provides the UE with a set of measurement objects in advance, each associated with a specific BWP's SSB frequency. When the UE switches to a particular BWP, it simply selects the pre-configured measurement object that matches the active BWP, avoiding the need for real-time configuration changes and reducing operational complexity.
Data Source
AI summary
Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive, from a network entity, a configuration that indicates one or more measurement objects, wherein a measurement object of the one or more measurement objects indicates a synchronization signal block (SSB) frequency of a configured bandwidth part (BWP). The UE may determine, from the one or more measurement objects, a serving cell measurement object based at least in part on an active BWP of the UE, wherein the serving cell measurement object is associated with an SSB frequency in the active BWP. Numerous other aspects are described.