Paging Frame Occasion Segmentation for Poor Coverage Reliability
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Solution Overview
Problem
In mobile communication systems, UEs in areas with poor signal coverage often fail to receive paging messages successfully due to overlapping paging messages from multiple UEs, leading to incorrect parsing and failed paging operations.
Innovation Solution
The implementation of a method where user equipment (UE) and base stations use specific radio frame parameters to determine optimal paging frames and occasions, ensuring that UEs in poor coverage areas receive paging messages only once by adjusting the start paging frame and occasion based on a first radio frame parameter, thereby avoiding overlapping messages.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the base station repeatedly sends paging messages to UEs in poor coverage areas, then the paging reliability is improved, but the probability of message overlap and parsing failure increases
Solution Approach 1:
The patent segments the paging message reception process into multiple independent paging occasions (POs) within a paging frame (PF). Each PO is a separate time slot where the base station sends paging messages to different UEs. By dividing the paging process into multiple POs, the system can repeatedly page UEs in poor coverage areas without causing message overlap, as each PO is temporally separated from others.
Solution Approach 2:
The patent dynamically adjusts the paging configuration based on UE coverage conditions. The base station determines whether a UE is in a poor coverage area and accordingly selects appropriate PF and PO configurations. The system dynamically adapts the paging strategy by choosing different PFs and POs based on real-time coverage assessment, allowing repeated paging when needed while avoiding fixed overlapping schedules.
2Adaptability or versatility
If multiple UEs in poor coverage areas receive repeated paging messages, then the paging coverage is improved, but the subframe collision and parsing failure rate increases
Solution Approach 1:
The patent segments the paging occasions into multiple distinct time slots (POs) within each paging frame. Each PO is assigned to specific UEs, and by the time the next PO occurs, previous paging transmissions have completed. This temporal segmentation ensures that even when multiple UEs require repeated paging, their messages do not overlap in the same subframe, maintaining parsing accuracy.
Solution Approach 2:
The patent changes the timing parameters (PF and PO configurations) based on UE identification and coverage conditions. The base station determines which PF and PO to use by calculating system frame numbers and paging occasions, adjusting these parameters dynamically. This parameter adjustment ensures that paging messages are transmitted at optimized times that avoid collision while maintaining coverage for multiple UEs in poor coverage areas.
Data Source
AI summary
Embodiments of the present disclosure provide a paging method, apparatus, and system, so as to implement paging of a UE in an area with relatively poor signal coverage. The UE includes: a receiving unit, configured to receive a broadcast message from a base station; and a determining unit, configured to determine whether the UE is first UE where the determining unit is further configured to: in a case in which it is determined that the UE is the first UE, determine a start PF and a start PO according to the first radio frame parameter; the determining unit is further configured to determine a first subframe set according to the start PF and the start PO; and the receiving unit is further configured to receive, according to the start PF, the start PO, and the first subframe set, a paging message sent by the base station.