Aligning Paging Occasions with SSBs for UE Power Savings
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current wireless communication systems face inefficiencies in aligning paging occasions (POs) and synchronization signal blocks (SSBs) in 5G and LTE networks, leading to increased power consumption and battery drain in user equipment (UEs) due to misalignment of POs and SSBs, which results in UEs needing multiple wake-ups for both paging and synchronization signal receptions.
Innovation Solution
The method involves assigning identifiers to UEs based on synchronization signal block periodicity and the number of paging frames per discontinuous reception (DRX) cycle, ensuring that POs are aligned with SSB communications, allowing UEs to receive both types of signals during the same awake time, thereby reducing power consumption and extending battery life.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If POs and SSBs are not aligned, then UEs can receive paging and synchronization signals separately, but power consumption increases due to multiple wake-ups
Solution Approach 1:
The patent merges the reception timing of paging occasions and synchronization signal blocks by aligning their occurrences in time. The network configures POs and SSBs to occur in the same or overlapping time resources, allowing the UE to receive both signals during a single wake-up period rather than requiring separate wake-ups, thereby reducing power consumption while ensuring reliable reception of both signal types
Solution Approach 2:
The network performs preliminary configuration of PO and SSB timing parameters before UE operation begins. By pre-aligning the periodicity and offset values of POs and SSBs in the network configuration, the UE can be guaranteed to encounter both signals during its scheduled wake-up times without needing to perform complex real-time calculations or additional wake-ups
2Duration of action of stationary object
If POs are aligned with SSBs, then UE battery life is extended, but network configuration complexity increases
Solution Approach 1:
The patent employs parameter changes by adjusting the periodicity and offset parameters of POs to match SSB timing characteristics. The network configures specific parameter values for PO periodicity, PO offset, and SSB periodicity that create temporal alignment between the two signal types, thereby extending battery life through reduced wake-ups while managing configuration complexity through standardized parameter relationships
3Reliability
If multiple wake-ups are required for paging and synchronization, then signal reception is ensured, but network performance deteriorates
Solution Approach 1:
The patent merges the reception timing of paging occasions and synchronization signal blocks by aligning their occurrences in time. The network configures POs and SSBs to occur in the same or overlapping time resources, allowing the UE to receive both signals during a single wake-up period rather than requiring separate wake-ups, thereby reducing power consumption while ensuring reliable reception of both signal types
Solution Approach 2:
The patent ensures continuous useful action by maintaining aligned PO and SSB timing patterns over multiple cycles. This continuous alignment ensures that every UE wake-up opportunity is productive for both paging reception and synchronization signal acquisition, eliminating wasted wake-ups and improving overall network performance through more efficient resource utilization
Data Source
AI summary
Various aspects of the present disclosure generally relate to wireless communication. In some aspects, an AMF may receive, from a user equipment (UE), a communication associated with a request for an identifier. The AMF may transmit, to the UE, the identifier, wherein the identifier is based at least in part on a synchronization signal block (SSB) periodicity and a number of paging frames per discontinuous reception (DRX) cycle. Numerous other aspects are described.