Group Messaging Cancellation in Wireless Systems
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Solution Overview
Problem
In wireless communication systems supporting Machine Type Communication (MTC), there is no effective method to cancel a group message once it has been transmitted, leading to unnecessary signaling and reduced resource efficiency due to service request messages from multiple user equipment.
Innovation Solution
A method and apparatus for canceling a group message in a wireless communication system, involving a network node that receives a group messaging cancellation request message with a group messaging identifier and cancellation indication, stops the transmission of the corresponding group message, and transmits the identifier to user equipment, considering a time window for cancellation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a group message is transmitted to multiple user equipments, then the message delivery function is achieved, but unnecessary signaling occurs when cancellation is required and resource efficiency decreases
Solution Approach 1:
The patent extracts the cancellation indication information from the existing group message transmission protocol and creates a separate cancellation mechanism. The network node sends a specific cancellation indication message containing a group message identifier to trigger cancellation, separating the cancellation function from the original message delivery flow and preventing unnecessary service request signaling.
Solution Approach 2:
The patent implements preliminary action by establishing a cancellation mechanism before unnecessary signaling occurs. The network node proactively sends cancellation indication information to user equipments before they would otherwise transmit service request messages, preventing the wasteful signaling sequence from occurring in the first place.
2Ease of operation
If user equipments transmit service request messages to cancel a group message, then the cancellation function is achieved, but resource efficiency is reduced due to multiple simultaneous transmissions
Solution Approach 1:
The patent merges the cancellation function into a centralized network-controlled mechanism rather than allowing distributed user equipment-initiated cancellations. The network node consolidates the cancellation authority and sends a single cancellation indication message to all relevant user equipments, replacing multiple simultaneous service request messages with one coordinated cancellation signal.
Solution Approach 2:
The network node acts as an intermediary that mediates the cancellation process between the message source and user equipments. Instead of user equipments directly transmitting service requests to cancel messages, the network node receives cancellation requests and translates them into standardized cancellation indication messages distributed to appropriate user equipments, reducing overall signaling volume.
3Device complexity
If no cancellation method is provided for transmitted group messages, then the transmission protocol remains simple, but resource efficiency decreases due to unavoidable service request signaling
Solution Approach 1:
The patent segments the message lifecycle into distinct phases: transmission phase and cancellation phase. The cancellation phase is further segmented into network-received cancellation requests and network-sent cancellation indications. This segmentation allows the protocol to maintain simplicity in the common transmission case while providing efficient cancellation capability when needed, without requiring complex integrated handling of both functions.
Data Source
AI summary
A method for cancelling a group messaging in a wireless communication system and an apparatus for the same is disclosed. Particularly, a method for cancelling a group messaging performed by a network node in a wireless communication system may include receiving a group messaging cancellation request message that includes a group messaging identifier of a group messaging requested to be cancelled and cancellation indication information and stopping a transmission of a group messaging that corresponds to the group messaging identifier, and transmitting the group messaging identifier to a user equipment.