Wireless Paging Detection Using PEI Subgroups to Reduce False Wake-Ups
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Solution Overview
Problem
Terminal devices face confusion in determining the appropriate subgroup sequence number for paging detection due to the lack of clear specification in existing protocols, leading to unnecessary power consumption and false wake-ups.
Innovation Solution
The method involves determining subgroup sequence numbers based on the terminal device's ID, indications from the base station, or core network device, and using a PEI to indicate whether to perform paging detection by specific subgroups, allowing for more precise power management and reducing false wake-ups.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a terminal device uses multiple methods to determine subgroup sequence numbers, then the terminal device can determine multiple subgroup sequence numbers, but the terminal device becomes confused about which subgroup sequence number to use for subsequent processing
Solution Approach 1:
The patent segments the subgroup determination process by introducing different types of subgroup sequence numbers (first type determined by terminal, second type indicated by network) and different PEI formats (first format with single indication, second format with multiple indications). This segmentation allows the system to support multiple determination methods while maintaining clarity about which method to use in each scenario.
Solution Approach 2:
The patent makes the PEI format dynamic - the network can indicate whether to use the first PEI format (single subgroup indication) or the second PEI format (multiple subgroup indications) based on the terminal's capabilities and the specific scenario. This dynamic adaptation resolves the contradiction by allowing the system to switch between different operational modes.
2Reliability
If the terminal device performs paging detection in multiple subgroups, then the terminal device may detect paging messages, but the terminal device experiences unnecessary power consumption and false wake-ups
Solution Approach 1:
The patent extracts only the necessary paging detection operations by introducing the PEI mechanism that indicates which specific subgroups should perform paging detection. Instead of requiring terminals to monitor all subgroups, the network extracts and indicates only the relevant subgroup indications, thereby reducing unnecessary power consumption while maintaining reliable paging detection for the actual target subgroups.
3Adaptability or versatility
If the protocol does not clearly specify subgroup sequence number determination, then the system has flexibility in implementation, but the terminal device cannot determine the correct subgroup for paging detection
Solution Approach 1:
The patent introduces feedback mechanisms where the network provides explicit indications to the terminal about which subgroup sequence numbers to use. The PEI carries network-indicated subgroup sequence numbers that feedback to the terminal, ensuring the terminal has precise information about which subgroups to monitor. This feedback loop maintains implementation flexibility while ensuring accurate subgroup identification.
Data Source
AI summary
Provided are a wireless communication method and apparatus. One example method includes: receiving, by a first terminal device, a first paging early indication (PEI), wherein the first terminal device belongs to a first subgroup and a second subgroup, and the first PEI comprises an indication indicating whether to perform paging detection by the first subgroup and whether to perform paging detection based on the second subgroup; and determining, by the first terminal device based on the indication, whether to perform paging detection based on at least one of the first subgroup or the second subgroup, wherein the first subgroup corresponds to a radio access network (RAN)-initiated paging message, and the second subgroup corresponds to a core network (CN)-initiated paging message.