5G Terminal Paging Method Reducing Power Consumption
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Solution Overview
Problem
In 5G New Radio systems, terminal devices experience high power consumption due to receiving paging messages intended for other devices, leading to inefficient energy usage during the paging process.
Innovation Solution
A paging method where terminal devices calculate their own paging frame and occasion, allowing them to monitor the Physical Downlink Control Channel (PDCCH) only in a specific target Control Resource Set (CORSET) corresponding to their identifier, reducing the likelihood of receiving incorrect paging messages and thus minimizing power consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the core network sends paging messages in all base stations in the TA list of the terminal device, then the terminal device can be paged reliably, but the terminal device receives paging messages intended for other devices, increasing power consumption
Solution Approach 1:
The patent segments the paging message into two parts: a first message sent to a first base station and a second message sent to a second base station. The terminal device receives the first message and determines whether to request the second message based on its identity. This segmentation allows the terminal to filter out irrelevant paging messages early, reducing power consumption while maintaining reliable paging delivery across the tracking area list.
Solution Approach 2:
The patent introduces an intermediary mechanism where the terminal device acts as a filter between the network's paging messages and its own processing. The terminal receives the first paging message, determines whether it is the target of the page, and only then requests or processes the second message. This intermediary step prevents the terminal from unnecessarily processing paging messages intended for other devices, reducing energy consumption while ensuring reliable paging delivery.
2Reliability
If the terminal device monitors PDCCH in all control resource sets, then it can receive all paging messages, but it receives incorrect paging messages for other devices, wasting energy
Solution Approach 1:
The patent applies local quality by making the PDCCH monitoring behavior specific to each control resource set and each terminal device's identity. Instead of uniformly monitoring all PDCCH opportunities across all control resource sets, the terminal device determines which specific PDCCH to monitor based on its identity and the paging message content. This localized approach ensures reliable reception of relevant paging messages while avoiding energy waste on irrelevant ones.
Data Source
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AI summary
Disclosed by the embodiments of the present application are a paging method, a terminal device and a network device, the method comprising: a terminal device determines a target control resource set (CORSET) corresponding thereto among a plurality of CORSETs; the terminal device receives a physical downlink control channel (PDCCH) used for scheduling a paging message in a common search space within the target CORSET, and according to the PDCCH, acquires the paging message.