Paging Indication Information Grouping for 5G Resource Reduction
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Solution Overview
Problem
In 5G mobile communication systems, the existing paging methods are inefficient as they require broadcasting paging messages in multiple directions due to unknown UE locations, leading to waste of transmission resources.
Innovation Solution
A paging method that acquires and broadcasts specific paging indication information based on UE identifiers and current paging details, using time-domain and frequency-domain resources to efficiently target paged UEs, reducing the need for multi-beam transmissions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the base station broadcasts paging messages in multiple directions using beamforming, then the paging coverage is improved and UEs can receive paging messages, but transmission resources are wasted due to sending messages to all directions regardless of UE location
Solution Approach 1:
The base station divides UEs into different groups based on their beam directions and sends paging indication information to each group separately. This segmentation allows the base station to target specific UE groups rather than broadcasting to all directions, reducing unnecessary transmission resource occupation while maintaining reliable paging coverage for all UEs.
Solution Approach 2:
The base station performs preliminary classification of UEs into different groups based on their beam directions before sending paging messages. By pre-organizing UEs into groups and sending paging indication information to each group in advance, the system avoids the need to broadcast paging messages in all directions simultaneously, thereby reducing transmission resource waste while ensuring complete paging coverage.
2Reliability
If the base station sends paging messages to all directions, then all UEs can potentially receive the message, but the transmission efficiency decreases due to redundant transmissions
Solution Approach 1:
The base station segments UEs into different groups based on their beam directions and sends paging indication information to each group separately. This ensures that all UEs receive the paging message through their respective group transmissions, maintaining reliable paging message delivery while eliminating redundant transmissions to directions without UEs.
Solution Approach 2:
The system changes the transmission parameter from broadcasting to all directions simultaneously to targeted transmission to specific UE groups based on their beam directions. This parameter change optimizes transmission efficiency by adapting the broadcasting scope to match the actual UE distribution, while still ensuring all UEs receive the paging message.
3Device complexity
If the base station uses traditional paging methods without UE location information, then simplicity is maintained, but resource waste increases due to multi-beam transmissions
Solution Approach 1:
The base station implements a simple yet effective segmentation approach by dividing UEs into groups based on beam directions and sending paging indication information to each group. This maintains the simplicity of the paging method while significantly reducing transmission resource occupation compared to traditional multi-beam transmissions to all directions.
Solution Approach 2:
The base station performs preliminary grouping of UEs based on beam directions before paging transmission. This preliminary action maintains operational simplicity by using basic classification logic while effectively reducing resource waste, avoiding the need for complex location determination mechanisms.
Data Source
AI summary
The present disclosure provides a paging method and apparatus, pertaining to the technical field of communications. The method includes: acquiring first paging indication information and at least one piece of second paging indication information based on current paging details of each User Equipment (UE) and a UE identifier of the each UE, a bit of the first paging indication information being configured to indicate whether a paged UE is present in a UE group, and a bit of the second paging indication information being configured to indicate whether a UE in a UE group is paged; broadcasting the first paging indication information on a first paging time-domain resource, the first paging time-domain resource being a time-domain resource for an information synchronization; and broadcasting the at least one piece of second paging indication information on a second paging time-domain resource. According to the present disclosure, occupation of transmission resources is reduced by broadcasting paging indication information.