WO2011071662A2 - Procédé et dispositif pour passer un appel de groupe - Google Patents

Procédé et dispositif pour passer un appel de groupe Download PDF

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Publication number
WO2011071662A2
WO2011071662A2 PCT/US2010/056839 US2010056839W WO2011071662A2 WO 2011071662 A2 WO2011071662 A2 WO 2011071662A2 US 2010056839 W US2010056839 W US 2010056839W WO 2011071662 A2 WO2011071662 A2 WO 2011071662A2
Authority
WO
WIPO (PCT)
Prior art keywords
channel
communication device
call
voice activity
timer
Prior art date
Application number
PCT/US2010/056839
Other languages
English (en)
Other versions
WO2011071662A3 (fr
Inventor
Joshua J. Trifiletti
David E. Klein
Original Assignee
Motorola Solutions, Inc.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Motorola Solutions, Inc. filed Critical Motorola Solutions, Inc.
Priority to AU2010328597A priority Critical patent/AU2010328597B2/en
Publication of WO2011071662A2 publication Critical patent/WO2011071662A2/fr
Publication of WO2011071662A3 publication Critical patent/WO2011071662A3/fr
Priority to IL220112A priority patent/IL220112A0/en

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/40—Connection management for selective distribution or broadcast
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/30—Connection release
    • H04W76/38—Connection release triggered by timers

Definitions

  • the present disclosure relates generally to managing a group call in a communication device and more particularly to a method for group call initiation in a communication device.
  • Communication devices such as push-to-talk radio devices
  • two-way radio devices commonly known as walkie-talkies
  • walkie-talkies are extensively used by defense departments, disaster management agencies, traffic police, hospitals, and the like, for public safety and relief.
  • certain statically configured or dynamically determined groups of personnel e.g., talkgroups
  • Two-way radio devices can facilitate such group communications.
  • FIG. 1 is a network diagram illustrating a communication system used for facilitating group call initiation in accordance with some embodiments.
  • FIG. 2 is a block diagram of a communication device in accordance with some embodiments.
  • FIG. 3 illustrates a flow diagram of a method for group call initiation in accordance with some embodiments.
  • FIG. 4 further illustrates the flow diagram of the method for group call initiation in accordance with some embodiments.
  • a method for group call initiation in a communication device upon a user's command, accesses a call list having a plurality identifiers and receives a user's selection of a talkgroup identifier from the call list. The communication device switches to a first channel associated with the selected talkgroup identifier to allow a call on the first channel. When the call ends, the communication device sets a first timer and monitors the first channel for voice activity. If voice activity is detected on the first channel, the communication device continues the call with the talkgroup and resets the first timer when the call ends.
  • the communication device When the first timer expires and no voice activity is detected on the first channel, the communication device sets a second timer and scans a home channel for voice activity. If no voice activity is detected on the home channel, the communication device continues to automatically switch between monitoring the first channel and scanning the home channel, using the second timer, until the second timer expires or voice activity is detected on the home channel, wherein the communication device automatically switches to the home channel.
  • FIG. 1 is a network diagram illustrating a communication system 100 used to facilitate initiation of group calls in accordance with embodiments of the present disclosure.
  • the communication system includes a communication device 102, a communication device 104 having a user that is a member of a primary talkgroup, a communication device 106 having a user that is a member of a talkgroup A, and a communication device 104 having a user that is a member of a talkgroup B.
  • the communication device 102 communicates with the members 104 to 108 of the respective talkgroups via an infrastructure device 110 in the system 100.
  • Infrastructure device may 100 may be, for instance, equipment commonly referred to as a base station, a base radio, a base transceiver station, a repeater, an access point, a router, and the like depending on the type of
  • System 100 may also includes a number of other infrastructure devices (not shown) for facilitating communications between the communication devices, such as, bridges, switches, zone controllers, base station controllers, or any other type of infrastructure equipment.
  • infrastructure devices such as, bridges, switches, zone controllers, base station controllers, or any other type of infrastructure equipment.
  • Communication system 100 can be any type of communication system, and in this described embodiment is a trunked radio system.
  • the communication devices 102 to 108 can be any standard communication device such as radios, mobile stations, subscriber units, mobile phones, Personal Digital Assistants (PDAs), laptops, two- way radios, cell phones, and the like.
  • the communication device 102 is a subscriber unit, more particularly, a push-to-talk radio, in the trunked radio system.
  • the talkgroups are various trunk groups, each group having a plurality of communication devices, similar to the communication devices 102 to 104.
  • the primary talkgroup is the default talkgroup with which the communication device 102 connects on a home channel, wherein a "channel" is the wireless medium used to carry information at a given channel frequency from a sending communication device to a receiving communication device.
  • the talkgroup A and the talkgroup B are secondary talkgroups with which the communication device 106 communicates occasionally.
  • the communication device 102 connects with the talkgroups A, B 106 and 108 on their respective frequency channels.
  • FIG. 2 is a block diagram of a communication device, such as a
  • the communication device 102 includes a network interface 204 coupled to a memory 206 and a processor 210, a keypad 208, a display 202, colored LEDs 212, and a speaker 214.
  • the network interface 204 can be used for communicating with the members of the talkgroups and the base station 110.
  • the implementation of the network interface 204 depends on the particular type of network, i.e., wired and/or wireless, to which the communication device 102 is connected. For example, where the network supports wired
  • the network interface 202 may comprise a serial port interface (e.g., compliant to the RS-232 standard), a parallel port interface, an Ethernet interface, a USB interface, and/or a Fire Wire interface, and the like.
  • the network interface 202 comprises elements including processing, modulating, and transceiver elements that are operable in accordance with any one or more standard or proprietary wireless interfaces, wherein some of the functionality of the processing, modulating, and transceiver elements may be performed in processor 210 through programmed logic such as software applications.
  • the memory 206 includes a call list comprising a plurality of identifiers (IDs) used to enter a call with one or more other communication devices, such as communication devices 106 to 108.
  • the call list includes talkgroup (TG) IDs as well as IDs for individual subscriber units (SUs).
  • TG talkgroup
  • SU subscriber units
  • memory 206 includes talkgroup IDs for talkgroup A and talkgroup B, and the primary talkgroup (not shown) as well as subscriber unit IDs for individual subscriber units A and B (not shown) in the system.
  • Memory 206 may further comprise software for programming the processing device with the logic needed to perform its functionality.
  • the processor 210 can be programmed with logic or in one or more application specific integrated circuits (or some combination) for implementing methods (such as method 300 described below by reference to FIGs. 3 and 4) for accelerating group call initiation in accordance with the teachings herein.
  • the keypad 208 has a plurality of touch buttons, a touch screen, or the like, bearing alphanumeric characters and navigation arrows enabling a user to enter information and navigate through various options available on a user interface on the display 210.
  • the colored LEDs 212 on the communication device 102 exhibit various color combinations or light sequences to provide a visual indication of current operating status of the communication device 102 to a user. For instance, a green colored LED may indicate that the communication device 102 is connected onto the home channel, while a yellow colored LED may indicate that the communication device 102 is connected onto a first channel, corresponding to the talkgroup A.
  • the speaker 214 provides an audio indication of the current operating status of the communication device 102 to the user by generating different sound patterns. For instance, the speaker 214 may generate a single beep when connected onto the home channel, and generate a double beep when connected onto the first channel.
  • FIGs. 3 and 4 show a flow diagram 300 for a method of accelerating group call initiation in a communication device, e.g., 102.
  • the flow diagram 300 is explained in accordance with FIGs. 1 and 2.
  • the communication device accesses (302) the call list stored in the memory 206 of the communication device 102, which is displayed to the user on the display 202.
  • the call list comprises a plurality of identifiers used to enter a call with other communication devices. These identifiers can include subscriber IDs for individual subscriber units and talkgroup IDs for talkgroups, such as talkgroups A, B, and the primary talkgroup.
  • the identifiers can be represented by a certain arrangement of symbols such as alphanumeric symbols, a binary number having a certain number of bits, etc.
  • the talkgroup A can have its talkgroup ID as "TG-A".
  • the call list includes identifiers for recently called contacts and recently received calls.
  • the user selects a talkgroup ID from the call list, which is received (304) at the communication device 102.
  • the talkgroup ID represents a group of individuals having subscriber units that are connected in the trunked radio system and share a common channel. For instance, the user can select identifier "TG-A" from the call list to connect to the talkgroup A.
  • the communication device 102 On selecting the talkgroup ID, the communication device 102 automatically switches (306) to a first channel associated with the selected talkgroup.
  • the communication device 102 is connected to the primary talkgroup on a home channel by default.
  • the communication device 104 automatically switches from the home channel to the first channel associated with the talkgroup A. The user is hence placed in a call with the talkgroup A.
  • one or more indicators in the communication device 102 notify the user that the communication device 102 is now connected to the first channel. For instance, the colored LEDs 212 may turn on yellow colored LEDs to indicate that the communication device 102 is connected onto the first channel.
  • the speaker 214 may generate a specific sound pattern to indicate that the communication device 102 is connected onto the first channel.
  • Such visual and audio indicators can be controlled via an algorithm running on the processor 210.
  • the communication device 102 After placing the call, the communication device 102 checks (310) whether the call with the talkgroup A has ended. If the call has not ended, the communication device remains on the first channel and continues (312) with the call on the first channel. If the communication device 102 detects that the call has ended, it sets (314) a first timer with a pre-determined time period. The first timer can be included in the processor 210.
  • the communication device 102 monitors (316) the first channel for voice activity. For instance, although the call has already been detected to have ended, the communication device 102 monitors the first channel for any voice activity to ensure that the call has not been dropped erroneously or that a new call has not started within the time period of the first timer. Accordingly, while monitoring the first channel, the communication device 102 checks (318) whether any voice activity is detected on the first channel. If the voice activity is detected, the communication device 102 continues (312) the call with the talkgroup A on the first channel. On the other hand, if the communication 102 fails to detect any voice activity on the first channel, it periodically checks (320) whether the first timer has expired. If the first timer has not expired, the communication device 102 continues to monitor (316) the first channel for any voice activity.
  • the communication device 102 checks (332) whether a second timer is running.
  • the second timer also has a pre-determined time period, and is also included in the processor 210. In an embodiment, the time period for the second timer is greater than the time period for the first timer.
  • the communication device 102 determines that the second timer is not running, it sets (322) the second timer with the pre-specified time period. Thereafter, the communication device scans (324) the home channel for any voice activity.
  • the one or more indicators notify the user that the communication device 102 is scanning the home channel. For instance, the colored LEDs 212 begin blinking green colored LEDs to indicate scanning operation. Alternatively or in addition, the speaker 214 may generate a specific sound pattern indicative of the scanning operation.
  • communication device 102 checks (326) if any voice activity is detected on the home channel. In case any voice activity is detected on the home channel, the communication devices automatically switches (330) to the home channel. The indicators (visual or audio) change their status accordingly to notify the user that the communication device 102 is now connected onto the home channel.
  • the communication device 102 if it fails to detect any voice activity on the home channel, it checks (328) whether the second timer has expired. If the second timer has not expired, the communication devices sets (314) the first timer again and re-iterates the whole process henceforth beginning with monitoring (316) the first channel for voice activity. However, if the second timer has expired, the communication device 102 switches (330) to the home channel.
  • the communication device 102 is able to constantly monitor the currently connected channel and the home channel simultaneously. Moreover, the communication device 102 automatically switches from one channel to another; therefore, the user is rendered free from the hassles of switching the channels back and forth manually. Furthermore, by virtue of visual and audio indicators, the user remains well aware of current operating status of the communication device 102.
  • a device or structure that is "configured" in a certain way is configured in at least that way, but may also be configured in ways that are not listed.
  • processors or “processing devices”
  • microprocessors digital signal processors, customized processors and field programmable gate arrays (FPGAs) and unique stored program instructions (including both software and firmware) that control the one or more processors to implement, in conjunction with certain non-processor circuits, some, most, or all of the functions of the method and/or apparatus described herein.
  • FPGAs field programmable gate arrays
  • unique stored program instructions including both software and firmware
  • some or all functions could be implemented by a state machine that has no stored program instructions, or in one or more application specific integrated circuits (ASICs), in which each function or some combinations of certain of the functions are implemented as custom logic.
  • ASICs application specific integrated circuits
  • an embodiment can be implemented as a computer-readable storage medium having computer readable code stored thereon for programming a computer (e.g., comprising a processor) to perform a method as described and claimed herein.
  • Examples of such computer-readable storage mediums include, but are not limited to, a hard disk, a CD-ROM, an optical storage device, a magnetic storage device, a ROM (Read Only Memory), a PROM (Programmable Read Only Memory), an EPROM (Erasable Programmable Read Only Memory), an EEPROM (Electrically Erasable Programmable Read Only Memory) and a Flash memory.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Telephone Function (AREA)

Abstract

Sur un ordre d'un utilisateur, un dispositif de communication accède (302) à une liste d'appels comportant une pluralité d'identifiants et reçoit (304) un identifiant de groupe d'appel choisi par l'utilisateur dans ladite liste d'appels. Le dispositif de communication passe (306) à un premier canal associé à l'identifiant de groupe d'appel choisi afin qu'un appel puisse être effectué sur ce premier canal. Lorsque l'appel se termine, le dispositif de communication règle (314) une première minuterie et surveille (316) le premier canal à la recherche d'une activité vocale, et, si une activité vocale est détectée, le dispositif de communication poursuit l'appel sur ce premier canal. Lorsque la première minuterie arrive à son terme sans qu'aucune activité vocale n'ait été détectée, le dispositif de communication règle une seconde minuterie et balaye un canal de rattachement à la recherche d'une activité vocale ; et si aucune activité vocale n'est détectée, le dispositif de communication continue à surveiller le premier canal jusqu'à ce que la seconde minuterie arrive à son terme ou jusqu'à ce qu'une activité vocale soit détectée sur le canal de rattachement, puis il passe automatiquement au canal de rattachement.
PCT/US2010/056839 2009-12-10 2010-11-16 Procédé et dispositif pour passer un appel de groupe WO2011071662A2 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
AU2010328597A AU2010328597B2 (en) 2009-12-10 2010-11-16 Method and device for group call initiation
IL220112A IL220112A0 (en) 2009-12-10 2012-06-03 Method and device for group call initiation

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US12/635,420 US8396501B2 (en) 2009-12-10 2009-12-10 Method and device for group call initiation
US12/635,420 2009-12-10

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WO2011071662A2 true WO2011071662A2 (fr) 2011-06-16
WO2011071662A3 WO2011071662A3 (fr) 2011-08-18

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US (1) US8396501B2 (fr)
AU (1) AU2010328597B2 (fr)
IL (1) IL220112A0 (fr)
WO (1) WO2011071662A2 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8600421B2 (en) * 2011-12-28 2013-12-03 Motorola Solutions, Inc. Method and apparatus for priority monitoring of communication groups over multiple disparate wireless networks
GB2543010B (en) * 2014-08-26 2020-05-27 Motorola Solutions Inc Method and apparatus to efficiently support group call confirmation

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1182895A1 (fr) * 2000-08-15 2002-02-27 Lucent Technologies Inc. Méthode et appareils pour effectuer un appel en mode partage dans un système de communication numérique
KR20060020347A (ko) * 2004-08-31 2006-03-06 삼성전자주식회사 푸시투토크 방식을 채용한 이동통신 시스템 및 그 그룹할당 방법
KR20060090010A (ko) * 2005-02-04 2006-08-10 삼성전자주식회사 Ｐｔｔ 시스템에서 사용자 정보 자동 갱신 방법 및 그시스템

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5214790A (en) 1991-03-11 1993-05-25 Motorola, Inc. Enhanced talkgroup scan algorithm
US6895254B2 (en) * 2002-04-15 2005-05-17 Motorola, Inc. Method and apparatus for providing a dispatch call

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1182895A1 (fr) * 2000-08-15 2002-02-27 Lucent Technologies Inc. Méthode et appareils pour effectuer un appel en mode partage dans un système de communication numérique
KR20060020347A (ko) * 2004-08-31 2006-03-06 삼성전자주식회사 푸시투토크 방식을 채용한 이동통신 시스템 및 그 그룹할당 방법
KR20060090010A (ko) * 2005-02-04 2006-08-10 삼성전자주식회사 Ｐｔｔ 시스템에서 사용자 정보 자동 갱신 방법 및 그시스템

Also Published As

Publication number Publication date
IL220112A0 (en) 2012-07-31
AU2010328597B2 (en) 2013-09-26
US8396501B2 (en) 2013-03-12
WO2011071662A3 (fr) 2011-08-18
US20110143803A1 (en) 2011-06-16
AU2010328597A1 (en) 2012-07-05

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