Paging Indication for 5G Terminals in Idle State
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Solution Overview
Problem
Current communication systems lack an effective method to page terminals in both RRC_IDLE and RRC_INACTIVE states efficiently, leading to increased signaling overheads and power consumption.
Innovation Solution
A communication method where a network device sends first indication information before a paging message, allowing terminals to determine whether they need to receive the message, thereby reducing unnecessary detection and improving resource allocation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the network device sends paging messages to all terminals in RRC_IDLE and RRC_INACTIVE states, then all terminals can receive the message, but signaling overheads and power consumption increase
Solution Approach 1:
The patent segments the paging process into two distinct phases: first sending indication information to notify terminals about the upcoming paging message, then sending the actual paging message. This segmentation allows terminals to make informed decisions about whether to continue monitoring, thereby reducing unnecessary power consumption while ensuring reliable delivery to intended recipients
Solution Approach 2:
The network device performs a preliminary action by sending indication information before the actual paging message. This preliminary notification allows terminals to determine in advance whether they need to receive the paging message, enabling them to stop monitoring if not needed, thus reducing power consumption while maintaining reliable delivery for relevant terminals
2Reliability
If the network device sends paging messages to all terminals in RRC_IDLE and RRC_INACTIVE states, then all terminals can receive the message, but signaling overheads increase
Solution Approach 1:
The paging process is segmented into indication information transmission and actual paging message transmission. This segmentation reduces signaling overhead by separating the notification function from the data transmission function, allowing terminals to filter out unnecessary messages and reducing the overall signaling load on the network
Solution Approach 2:
The patent extracts the notification function from the paging message itself, creating a separate indication information message. This extraction allows the network to notify terminals about upcoming paging messages without including the full paging content, thereby reducing signaling overhead while ensuring reliable delivery when needed
3Speed
If terminals continuously monitor for paging messages, then they can receive messages promptly, but power consumption increases
Solution Approach 1:
The network device sends indication information as a preliminary action before the actual paging message. This allows terminals to wake up, check the indication, determine whether they are the intended recipient, and only then continue monitoring for the full paging message. This approach maintains fast reception for relevant terminals while reducing power consumption by allowing early termination for irrelevant terminals
Solution Approach 2:
The patent implements a periodic monitoring scheme where terminals wake up at specific intervals to check for indication information, then decide whether to continue monitoring for the full paging message. This periodic approach balances the need for fast message reception with power saving by not requiring continuous monitoring
Data Source
AI summary
A communication method and apparatus are provided. The method may be applied to a terminal and a network device. In the method, the network device first sends first indication information before sending a paging message, where the first indication information is used to indicate whether at least two terminals in an RRC_IDLE state or an RRC_INACTIVE state need to receive the paging message. In this way, after each of the at least two terminals receives the first indication information, the terminal may determine, based on the first indication information, whether the terminal needs to receive the paging message. If determining that the terminal needs to receive the paging message, the terminal may detect and receive the paging message on a corresponding time-frequency resource after the network device sends the paging message.