Paging Occasion Set for 5G Terminal Device Delay
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
In 5G systems, the transmission delay of paging messages is relatively long due to increased path loss in high-frequency bands, which can result in some terminal devices not receiving paging messages, especially when multiple beams are used to cover different areas in a cell.
Innovation Solution
A paging method that allows terminal devices to receive a paging message on multiple occasions within a single discontinuous reception (DRX) period by determining an occasion set for paging based on a terminal device identifier, which includes at least two occasions for paging, thereby reducing the overall transmission delay.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple beams are used to cover different areas in a cell, then all terminal devices can receive the paging message, but the transmission delay increases
Solution Approach 1:
The patent segments the paging transmission process by dividing the cell coverage into multiple beam directions, where each beam transmits the paging message to different geographical areas. This allows terminal devices in different locations to receive the paging message through their respective beams, improving coverage reliability without requiring sequential transmission across all areas.
Solution Approach 2:
The patent introduces spatial dimensionality by utilizing multiple beam directions simultaneously to transmit paging messages. Instead of transmitting sequentially in different time slots, the system transmits across multiple spatial dimensions (beam directions) at the same time, thereby maintaining comprehensive coverage while reducing transmission delay.
2Loss of time
If a single beam is used for paging transmission, then the transmission delay is reduced, but some terminal devices cannot receive the paging message
Solution Approach 1:
The patent segments the cell coverage area into multiple directional zones, each served by a specific beam. This segmentation allows the system to simultaneously transmit paging messages through multiple beams covering different zones, ensuring that terminal devices regardless of their location can receive the message without increasing transmission delay.
Solution Approach 2:
The patent merges multiple beam transmissions into a unified paging message delivery system. By combining the capabilities of multiple beams to transmit the same paging message simultaneously across different spatial directions, the system achieves both reduced transmission delay and improved reception coverage.
3Reliability
If terminal devices occupy multiple DRX periods to receive paging messages, then all areas are covered, but the energy consumption increases
Solution Approach 1:
The patent segments the paging reception process by allowing terminal devices to identify and monitor only the specific beam direction relevant to their location. This segmentation enables devices to wake up and receive paging messages only during the occasion corresponding to their serving beam, rather than monitoring multiple DRX periods, thereby reducing energy consumption while maintaining comprehensive coverage.
Solution Approach 2:
The patent applies local quality by tailoring the paging reception strategy to each terminal device's specific location and serving beam. Each device is configured to monitor paging occasions corresponding to its local beam direction, rather than uniformly monitoring all possible beams. This localized approach reduces energy consumption while ensuring reliable reception for each device.
Data Source
Figure 1~2
Figure 3
Figure 4
AI summary
Embodiments of this application provide a paging method and apparatus. The method includes: determining, by a terminal device within a discontinuous reception period, an occasion set for paging of the terminal device based on a terminal device identifier, where the occasion set for paging includes at least two occasions for paging; and receiving, in a time range corresponding to the occasions for paging included in the occasion set for paging, a paging message. One discontinuous reception period is partitioned into a plurality of occasion sets for paging, and one occasion set for paging includes at least two occasions for paging. Therefore, after determining, within a discontinuous reception period, a corresponding occasion set for paging, the terminal device may receive a paging message on an occasion for paging included in the occasion set for paging. In this way, the terminal device may receive, in one discontinuous reception period, a paging message for a plurality of times, thereby increasing a speed of transmitting the paging message.