Group Message Transmission in Wireless Paging
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Solution Overview
Problem
In wireless communication systems, group messaging often results in unnecessary operations and power consumption as all user equipment belonging to the same paging occasion read group messages simultaneously, including unintended devices, which affects the Cell Broadcast Service.
Innovation Solution
A method and apparatus for transmitting and receiving group messages in a wireless communication system that involves receiving assistance information from a network node indicating whether a paging message is transmitted for each user equipment group, allowing only intended UEs to receive the group message, thereby avoiding unnecessary operations and power consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If all user equipments in a paging occasion read group messages simultaneously, then group message transmission is achieved, but unnecessary operations and power consumption occur
Solution Approach 1:
The patent segments user equipments into different groups based on their paging occasions. Instead of having all UEs read group messages simultaneously, the system divides UEs into multiple groups that read at different time instances, thereby reducing unnecessary operations and power consumption for unintended devices.
2Productivity
If all user equipments in a paging occasion read group messages simultaneously, then group message transmission is achieved, but unintended user equipments are involved
Solution Approach 1:
The patent segments user equipments into different groups based on their paging occasions. Each group is assigned specific group messages to read at their designated paging occasion, ensuring that only intended UEs receive specific group messages and avoiding information loss from unintended reception.
Solution Approach 2:
The network acts as an intermediary by providing assistance information that indicates which group messages are intended for which paging occasions. This intermediary mechanism ensures that UEs can identify and read only the group messages relevant to them, preventing unintended message reception.
3Device complexity
If group messaging is transmitted without assistance information, then transmission simplicity is maintained, but unintended user equipments cannot be identified
Solution Approach 1:
The patent introduces assistance information as an intermediary element that provides target UE identification without significantly increasing system complexity. This assistance information is transmitted by the network and received by UEs, enabling precise identification of intended recipients while maintaining relatively simple transmission procedures.
Data Source
AI summary
A method for transmitting and receiving a group messaging in a wireless communication system and an apparatus for the same is disclosed. Particularly, the method for receiving a group message performed by a user equipment (UE) in a wireless communication system include receiving assistance information indicating whether a paging message is transmitted for each UE group from a network node, receiving the paging message from the network node on a paging occasion of the UE, when the transmission of the paging message for a group to which the UE is belonged in indicated by the assistance information, and receiving the group message, when a group message transmission for the group to which the UE is belonged is activated by the paging message.