Beam-Based Paging Indication for 5G mmW Network Devices
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Solution Overview
Problem
In wireless communication systems, particularly at very high or extremely high frequencies like those in 5G mmW bands, significant propagation losses occur, and network devices face challenges in efficiently paging terminal devices due to the need for frequent scanning of beam groups, which consumes time, power, and air resources.
Innovation Solution
The method involves a network device sending paging indication information to terminal devices grouped by beams, allowing each terminal device to determine if it is paged based on the identification information. In response, the paged terminal device sends a paging response message, which can include beam strength information, enabling the network device to determine the target beam for communication.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the network device scans beam groups in different directions to page terminal devices, then all terminal devices can be paged, but power consumption and resource usage increase significantly
Solution Approach 1:
The patent divides terminal devices into different sets based on their beam correspondence relationships. Instead of scanning all beam groups, the network device only needs to scan beam groups corresponding to the set of terminal devices being paged. This segmentation approach maintains paging completeness while significantly reducing power consumption and resource usage.
Solution Approach 2:
The patent enables the network device to perform partial scanning by only scanning beam groups that correspond to the specific set of terminal devices needing to be paged, rather than scanning all possible beam groups. This partial action approach achieves sufficient paging coverage for the target devices while avoiding unnecessary scanning of other beam groups.
2Reliability
If the network device scans beam groups in different directions to page terminal devices, then all terminal devices can be paged, but time consumption increases
Solution Approach 1:
The patent segments terminal devices into sets based on beam correspondence, allowing the network device to scan only the relevant beam groups for devices that need to be paged. This reduces the time required for paging operations while ensuring all target devices are successfully paged.
Solution Approach 2:
The network device performs partial scanning of only the necessary beam groups corresponding to the set of terminal devices being paged, rather than scanning all beam groups. This partial action reduces time consumption while maintaining adequate paging coverage for the target devices.
3Reliability
If the network device scans beam groups in different directions to page terminal devices, then all terminal devices can be paged, but air resources are consumed excessively
Solution Approach 1:
The patent segments the paging operation into targeted beam group scanning based on terminal device sets. The network device only scans beam groups corresponding to the set of terminal devices needing paging, thereby reducing air resource consumption while maintaining paging completeness for the target devices.
Solution Approach 2:
The network device performs partial scanning of only the necessary beam groups rather than scanning all possible beam groups. This partial action reduces air resource consumption while ensuring sufficient paging coverage for the target terminal devices.
Data Source
AI summary
The present disclosure provides a method and a device for paging. A network device sends paging indication information including identification information to a plurality of terminal devices corresponding to a same beam. A first terminal device of the plurality of terminal devices determines whether it is paged by the network device according to the identification information. In response to the first terminal device being paged by the network device, the first terminal device sends a paging response message to the network device.