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METHOD FOR MANAGING GROUP COMMUNICATION PRIORITIES BASED ON PROXIMITY TO THE TRANSMITTING RADIO DETERMINED BY DUAL WATCH MOBILE RADIO

IP.com Disclosure Number: IPCOM000240602D
Original Publication Date: 2015-Feb-11
Included in the Prior Art Database: 2015-Feb-11
Document File: 4 page(s) / 58K

Publishing Venue

Motorola

Related People

Kucharski, Wojciech: INVENTOR [+7]

Abstract

The invention is to manage group communication priorities based on proximity to sourcing mobile radio determined by measuring signal received from direct mode of operation. Dual-watch mobile radio after receiving information that new communication is started in the system, switches its second receiver to transmit frequency of mobile radio that started group communication and checks if the user, who transmits, is around by verifying whether its signal is received in direct mode. If direct mode signal qualifies mobile radio may participate in group communication in direct mode or via Base Transceiver Station(BTS).

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METHOD FOR MANAGING GROUP COMMUNICATION PRIORITIES BASED ON PROXIMITY TO THE TRANSMITTING RADIO DETERMINED BY DUAL WATCH MOBILE RADIO

 

 

By Author’s: Jan Cwiok, Pawel Jurzak, Grzegorz Kaplita, Wojciech Kucharski, Piotr Kuzio, Grzegorz Szyszka, Leszek Wojcik

Motorola Solutions, Inc.

 

ABSTRACT

The invention is to manage group communication priorities based on proximity to sourcing mobile radio determined by measuring signal received from direct mode of operation. Dual-watch mobile radio after receiving information that new communication is started in the system, switches its second receiver to transmit frequency of mobile radio that started group communication and checks if the user, who transmits, is around by verifying whether its signal is received in direct mode. If direct mode signal qualifies mobile radio may participate in group communication in direct mode or via Base Transceiver Station(BTS).

 

PROBLEM

Public safety first responder may need to communicate with allies who are nearby so they can quickly support them regardless if they are from the same or different communication group. One method of controlling operation of mobile radios is to rely on a dispatcher,  however in emergency situations, e.g. in case of an accident it takes time for the dispatcher to identify the closest officers to the one who needs help and patch groups so all users that could help can communicate each other. Such method causes some delay as additional exchange of information is usually required.

Dispatcher may not be aware who is around the officer who needs help because of no location available (indoor location, etc) or basically users who are around the officer, who needs help, do belong to different public safety institutions.

 

SOLUTION

Presented idea provides the solution for communication with the mobile radio users who are nearby the user in emergency situation. The communication can be established, even when the mobile radio users are from the different communication groups.

To solve the problem of communication between group of users and a nearby user who may be in emergency situation but communicates on different communication group, we propose to send the information from the system about the channel on which the communication has been initiated. Dual-watch mobile radio, which receives that information, may tune its second receiver to transmit frequency of mobile radio that started communication and check the signal of received communication. If the signal qualifies it means that mobile radio, which transmits, is within easy reach and communication can be established by joining the communication in direct mode or via BTS. This way only mobile radios in close proximity will participate in communication in addition to group predefined mobile radios and the nearby users can help the one that may be in danger.

OPERATION

Figure 1 is a conceptual diagram of an exemplary communication system and Figure 2 is corresponding message sequence chart. Figure 3 is a...