Subgroup Call Initiation via Temporary Identifiers
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
In radio communication systems, existing methods for handling group calls are inefficient, particularly in determining who missed a group call and making subgroup calls to only missing members, as they often require polling all members or involving a dispatcher, which can be impractical especially when members are spread across different Base Transceiver Stations (BTSs).
Innovation Solution
The introduction of temporary identifiers (tempIDs) managed between Base Transceiver Stations (BTSs) and mobile devices allows for efficient determination of missing group members and facilitates subgroup calls by representing required mobile devices for a group call, enabling sequential acknowledgments and dynamic subgroup call initiation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If an acknowledged group call is made to determine missing members, then the originator can identify who missed the call, but the process becomes inefficient when polling every member across multiple BTSs with large group sizes
Solution Approach 1:
The patent segments the group call process into two distinct phases: an initial group call to all members, followed by a separate subgroup call to only the identified missing members. This segmentation allows the system to first gather presence information efficiently, then selectively contact only those who need to be contacted again, avoiding the inefficiency of polling all members twice.
Solution Approach 2:
The patent introduces a temporary identifier (tempID) as an intermediary mechanism between BTSs and mobile devices. The tempID allows the BTS to efficiently track which members are present and which are missing without requiring complex polling procedures. This intermediary data structure enables rapid identification of missing members across multiple BTSs.
2Reliability
If individual calls are made to all missing members after an acknowledged group call, then all missing members can be contacted, but the process becomes inefficient and impractical when there are many missing members
Solution Approach 1:
The patent segments the contact process into a first group call to all members, followed by a second subgroup call to only the identified missing members. This segmentation ensures that all missing members are contacted (reliability) while avoiding the inefficiency of making individual calls to each member separately through the subgroup call mechanism.
Solution Approach 2:
The system uses the acknowledgment responses from the initial group call to automatically identify missing members and trigger the subgroup call without requiring manual intervention or complex dispatching. The system serves itself by using the call acknowledgment data to automatically determine and contact only the missing members.
3Adaptability or versatility
If a dispatcher is involved to make dynamic group calls, then flexible subgroup calls can be made, but a third party must be involved and pre-configuration is required
Solution Approach 1:
The patent enables the mobile communication system to make subgroup calls autonomously without requiring a dispatcher or third party. The system uses the temporary identifiers and acknowledgment data already present in the BTS to automatically identify missing members and initiate subgroup calls, eliminating the need for external dispatching configuration.
Solution Approach 2:
The patent uses the temporary identifier (tempID) as an intermediary that already exists in the BTS between the group call control and the mobile devices. This pre-existing intermediary allows the system to flexibly identify and contact missing members without requiring additional pre-configuration or third-party involvement, as the tempID infrastructure is already in place.
Data Source
AI summary
A Base Transceiver Stations (BTS) method includes managing mobile devices in range using temporary identifiers temporarily assigned to each of the mobile devices; receiving a group call grant with a list of required mobile devices for a group call; defining a representation for the required mobile devices based on the required mobile devices' respective temporary identifiers; and broadcasting the group call grant with the representation, wherein the mobile devices utilize the representation to determine if they are required mobile devices for the group call. A mobile device and a group call server are also disclosed.