Paging Indication Segmentation for 5G Beam Sweeping Efficiency
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Solution Overview
Problem
Existing technical solutions are not adaptable for 5G high frequency systems with beam sweeping, which affects the efficiency of paging indication in communication systems.
Innovation Solution
Configuring and transmitting specific paging occasions to User Equipment (UE) to enable efficient determination of paging indications and messages, utilizing approaches like Frequency Division Multiplexing (FDM) and Time Division Multiplexing (TDM) for optimal positioning and channel configuration, and using bitmap or Downlink Control Information (DCI) for efficient resource management.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If existing paging indication methods are used in LTE systems, then paging messages can be transmitted through PDSCH monitored by PDCCH, but the solution is not adaptable for 5G high frequency systems with beam sweeping
Solution Approach 1:
The paging indication is segmented into two separate components: a first paging occasion that carries only the paging indication (via PDCCH), and a second paging occasion that carries the actual paging message (via PDSCH). This segmentation allows the indication and message to be transmitted independently, enabling adaptation to 5G beam sweeping scenarios where the indication can be sent via a specific beam while the message can be received through appropriate channel configuration.
Solution Approach 2:
The first paging occasion acts as an intermediary that prepares the UE for receiving the paging message. By sending the paging indication first through PDCCH in a dedicated beam, the system creates a preparatory step that enables reliable message reception in subsequent paging occasions, bridging the gap between beam-specific indication and general message delivery in 5G systems.
2Loss of energy
If paging indication and paging message are transmitted together, then complete information is provided, but energy and bandwidth resources are not saved
Solution Approach 1:
The paging indication is extracted from the paging message and transmitted separately in the first paging occasion. This extraction allows UEs to quickly determine whether a paging message exists without receiving the entire message content, thereby saving energy by avoiding unnecessary message reception when no paging is intended. The complete information is preserved because the indication points to the message location for those who need it.
Solution Approach 2:
The system performs partial action by sending only the essential indication first, rather than the complete paging message. This partial transmission is sufficient for most UEs that do not have pending paging, allowing them to save energy. For UEs that do have paging, the indication triggers them to receive the full message in the second paging occasion, ensuring no information loss for those who need it.
3Loss of time
If UE monitors PDCCH continuously for paging scheduling, then paging messages are detected timely, but bandwidth resources are consumed
Solution Approach 1:
The paging indication is transmitted periodically in first paging occasions, allowing UEs to monitor only at these specific intervals rather than continuously. This periodic transmission pattern reduces bandwidth consumption while maintaining timely detection capability, as UEs know exactly when to expect paging indications and can enter low-power states between these periodic occasions.
Solution Approach 2:
The paging indication is sent in advance in the first paging occasion before the actual paging message is transmitted in the second paging occasion. This preliminary action allows UEs to prepare for message reception only when necessary, reducing continuous monitoring requirements and associated bandwidth consumption while ensuring timely detection of paging events.
Data Source
AI summary
A method for a base station includes: configuring at least one first paging occasion for representing a paging indication; configuring a second paging occasion for representing a paging message; and transmitting the first paging occasion and the second paging occasion to a terminal user equipment (UE), so that the UE determines a corresponding paging indication according to the first paging occasion and determines a corresponding paging message according to the second paging occasion.