Pre-paging for Deep Coverage Wireless Communication
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing wireless communications systems face challenges in reaching user equipment (UE) located in limited coverage zones, where conventional paging methods fail due to weak signal reception.
Innovation Solution
The method involves configuring a UE to monitor a first set of resources for legacy paging messages and a second set of resources for pre-paging messages, allowing the network to transmit a pre-paging message over a dedicated channel if the UE is in a deep coverage zone.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional paging methods are used to reach UE in limited coverage zones, then the system maintains simple paging procedures, but the paging message cannot be successfully received due to weak signal strength
Solution Approach 1:
The network performs preliminary actions by sending a pre-paging message to the UE before the actual paging message. This pre-paging message alerts the UE to prepare for receiving the subsequent paging message, enabling the UE to activate its receiver and tune to the appropriate frequency earlier, thus improving the reliability of paging message reception in deep coverage zones where signal strength is weak.
Solution Approach 2:
The pre-paging message acts as an intermediary between the network and the UE. It serves as a preparatory signal that bridges the gap caused by weak signal conditions, allowing the UE to transition from idle state to a state where it can reliably receive the actual paging message. This intermediary message helps overcome the harmful effect of signal attenuation by giving the UE advance notice to prepare its reception capabilities.
2Area of stationary object
If the network transmits pre-paging messages to alert UEs in deep coverage zones, then coverage area is improved, but device complexity increases due to additional monitoring requirements
Solution Approach 1:
The paging procedure is segmented into two distinct parts: a pre-paging message and an actual paging message. The pre-paging message contains simplified information (such as a flag or indicator) that the UE monitors first. This segmentation allows the UE to perform a lightweight initial check before committing resources to full paging message reception, thereby extending coverage to deep zones while managing device complexity through staged processing.
Solution Approach 2:
The UE performs partial monitoring action by first checking for the presence of a pre-paging message before fully processing a paging message. This partial action (monitoring for pre-paging indicators) requires fewer resources than full paging message decoding. Only when the pre-paging message indicates a paging is forthcoming does the UE proceed with the more resource-intensive full paging message reception, thus achieving extended coverage while controlling complexity through selective full processing.
3Reliability
If the UE monitors both first set of resources for paging messages and second set of resources for pre-paging messages, then deep coverage zone connectivity is improved, but power consumption increases
Solution Approach 1:
The UE employs periodic action by monitoring the second set of resources (pre-paging messages) at specific intervals or at predetermined times rather than continuously. The pre-paging messages are transmitted periodically by the network, and the UE is configured to wake up and check for these messages at corresponding periodic intervals. This periodic monitoring approach enables deep coverage zone connectivity while significantly reducing power consumption compared to continuous monitoring of both resource sets.
Solution Approach 2:
The system implements self-service by having the pre-paging message carry information that enables the UE to autonomously determine whether full paging message reception is necessary. The pre-paging message may include indicators or conditions that allow the UE to make local decisions about resource allocation and power consumption. This self-service mechanism reduces the need for continuous high-power monitoring by enabling the UE to stay in low-power states longer and only activate full reception capabilities when actually needed.
Data Source
AI summary
Certain aspects of the present disclosure provide techniques for wireless communications at a network entity. The network entity is configured to transmit a legacy paging message to a user equipment via a first set of resources, and a pre-paging message to a user equipment via a second set of resources. The second set of resources is used if one or more conditions are met. The network entity can also perform one or more actions after transmitting the pre-paging message.