A COMMUNICATION DEVICE FOR PROVIDING AN EFFICIENT DORMANT MODE FOR A GROUP COMMUNICATION NETWORK

    公开(公告)号:CA2446928A1

    公开(公告)日:2002-11-21

    申请号:CA2446928

    申请日:2002-05-14

    Applicant: QUALCOMM INC

    Abstract: A method and apparatus for providing an efficient dormant mode for push-to- talk communication devices (102, 104, 106) in a group communication network (100) provides for determining whether the communication device has been inactive for a predetermined first time period and, if so, causing the communication device to enter a control-hold mode, wherein the communication device maintains its dedicated traffic channel. The method further includes the steps of determining whether the communication device has been in the control-hold mode for a predetermined second time period and, if so, causing the communication device to enter a dormant mode, wherein the communication device releases its dedicated traffic channel. The method and apparatus further provides for causing the communication device to cache its service configuration state before entering the dormant mode.

    METHOD AND APPARATUS FOR DELIVERING INFORMATION TO AN IDLE MOBILE STATION IN A GROUP COMMUNICATION NETWORK

    公开(公告)号:CA2446163A1

    公开(公告)日:2002-11-21

    申请号:CA2446163

    申请日:2002-05-14

    Applicant: QUALCOMM INC

    Abstract: A method and apparatus provides for delivering information to an idle mobile station in a group communication network (100) includes delivering the information to the mobile station in special form, e.g., short data burst (SDB) form, if the information is smaller than a predetermined size limit. I n one embodiment, the method and apparatus provides for encapsulating the information inside a frame, forwarding the frame to a server (110) for delivery to the mobile station (102, 104, 106), and causing the server (110) to extract the information from the frame and deliver the information to the mobile station on a forward common channel. In one embodiment, the method an d apparatus provides for receiving information for delivery to the mobile station (102, 104, 106), the information being tagged for delivery on a forward common channel, and delivering the information to the mobile station (102, 104, 106) on the forward common channel. In one aspect, the method delivers the information when the mobile station (102, 104, 106) is in idle state with no traffic channel.

    sistema e método para fornecer serviços de comunicação em grupo

    公开(公告)号:BRPI0108898B1

    公开(公告)日:2016-07-05

    申请号:BR0108898

    申请日:2001-03-02

    Applicant: QUALCOMM INC

    Abstract: "sistema e método para fornecer serviços de comunicação em grupo". um sistema e método para o fornecimento de serviços de comunicação em grupo. cada um dentre a pluralidade de dispositivos de comunicação converte sinais de informação em pacotes de dados adequados para a transmissão através de uma rede de dados, tal como a internet. os pacotes de dados são transmitidos através da rede de dados para um gerenciador de comunicações. o gerenciador de comunicações age como um comutador configurável, permitindo a comunicaçao de qualquer dispositivo de comunicação seja direcionada para a pluralidade dos dispositivos de comunicação. o gerenciador de comunicações permite adicionalmente que os usuários de outros sistemas e dispositivos de comunicação participem das comunicações em grupo uns com os outros.

    ASSURED PACKET DATA SERVICES ASSOCIATED WITH COMMUNICATION NETWORKS

    公开(公告)号:CA2674708C

    公开(公告)日:2013-08-13

    申请号:CA2674708

    申请日:2007-03-06

    Applicant: QUALCOMM INC

    Abstract: A service for Public Safety (PS) and Law Enforcement (LE) users on commercial wireless networks which assure them access to packet data services. The service request is application based. The applications that are for official use, by the PS/LE users, could have a reserved priority level associated with them. The reserved priority level could be higher than a normal commercial user. The network could use the priority to distinguish users, and dynamically allocate and optimize network resources. The network could use priority level information to perform access, admission, and congestion control. The PS/LE user could use the official applications while on duty and un-official ones while off duty, thus, additionally freeing up network resources. The PS/LE users could then use advanced commercial packet data services, without the need for a private network, while at the same time making it feasible for commercial networks.

    GROUP COMMUNICATIONS OVER EVOLVED MULTIMEDIA BROADCAST/MULTICAST SERVICES

    公开(公告)号:CA2837097A1

    公开(公告)日:2012-12-06

    申请号:CA2837097

    申请日:2012-05-31

    Applicant: QUALCOMM INC

    Abstract: The application relates to group communications over multimedia broadcast-multicast services MBMS. E-MBMS services can be used to distribute multicast data to groups and could be useful in group com¬ munication systems. However, in conventional E-MBMS services, the time to establish a new flow is on the order of 10 seconds. This laten¬ cy is unacceptable for high performance group communication sys¬ tems, such as a push to talk system that requires less than 1 second from the call initiation from the originator to the granting of the floor to at least one group member. This problem is solved in that a multi¬ cast flow is pre-reserved for the media flow in such a way that it can be quickly established. Furthermore, another multicast flow, which is "always-on", is used as a sort of application layer paging flow in order to indicate activity on the media flow. The user equipment monitors the paging flow (Multicast flow#l) regarding activity of a group com¬ munication (Call Announcement) and upon receipt of a call announce message, switches to the corresponding media flow (Multicast flow #2).

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