Method and system for group call service
AssigneeQUALCOMM Incorporated
InventorsDavid Diep, Francesco Grilli
Life of this patent
Estimating the term…
Abstract
A method and system for group call services in a CDMA radio access network over a GSM-MAP or ANSI-41 core network are presented. The method and system provide for call setup, call notification, and call termination in the air interface of the CDMA radio access network. The necessary modification to the traffic and signaling channels for the CDMA radio network as well as new call flow messages are provided.
Claims53
A method for providing group call service in a communication network comprising a core network and a CDMA radio access network, the method comprising:
- sending an indication about status of a reverse link channel to a number of members of a group;
- receiving a request for the reverse link channel from a plurality of the number of members of the group;
- and
- granting the reverse link channel to one of the plurality of the number of members of the group.
A method for providing group call service between a talker and a number of listeners in a group in a communication network comprising a core network and a CDMA radio access network, the method comprising:
- transmitting traffic information from the talker to a base station;
- receiving the transmitted traffic information by the base station;
- and
- broadcasting the traffic information received by the base station to the number of listeners in the group.
A method for providing group call service in a communication network comprising a core network and a CDMA radio access network, the method comprising:
- receiving an indication from a member of a group requesting to talk to a number of members of the group;
- setting up a call for the member, thereby granting the member talker status;
- and
- notifying the number of members in the group that the member is granted talker status.
A method for providing group call service between a talker and a number of listeners in a group in a communication network comprising a core network and a CDMA radio access network, the method comprising:
- sending traffic information from the talker to a base station on a reverse fundamental channel;
- sending signaling information between the talker and the base station on a dedicated control channel;
- and
- sending power control information from the base station to the talker on a forward fundamental channel.
A method for providing group call service between a talker and a number of listeners in a group in a communication network comprising a core network and a CDMA radio access network, the method comprising:
- sending broadcast traffic information from a base station to the number of listeners in the group on a forward broadcast channel;
- and
- sending signaling information between the base station and the number of listeners in the group on a signaling channel.
An apparatus for providing group call service in a communication network comprising core network and a CDMA radio access network, the apparatus comprising:
- means for sending an indication about status of a reverse link channel to a number of members of a group;
- means for receiving a request for the reverse link channel from a plurality of the number of members of the group;
- and
- means for granting the reverse link channel to one of the plurality of the number of members of the group.
An apparatus for providing group call service between a talker and a number of listeners in a group in a communication network comprising a core network and a CDMA radio access network, the apparatus comprising:
- means for receiving traffic information from the talker;
- and
- means for broadcasting the traffic information received by the base station to the number of listeners in the group.
An apparatus for providing group call service in a communication network comprising a core network and a CDMA radio access network, the apparatus comprising:
- means for receiving an indication from a member of a group requesting to talk to a number of members of the group;
- means for setting up a call for the member, thereby granting the member talker status;
- and
- means for notifying the number of members in the group that the member is granted talker status.
A computer-readable medium embodying a method for providing group call service in a communication network comprising a core network and a CDMA radio access network, the method comprising:
- sending an indication about status of a reverse link channel to a number of members of a group;
- receiving a request for the reverse link channel from a plurality of the number of members of the group;
- and
- granting the reverse link channel to one of the plurality of the number of members of the group.
A computer-readable medium embodying a method for providing group call service in a communication network comprising a core network and a CDMA radio access network, the method comprising:
- receiving an indication from a member of a group requesting to talk to a number of members of a group;
- setting up a call for the member, thereby granting the member talker status;
- and
- notifying the number of members in the group that the member is granted talker status.
A computer-readable medium embodying a method for sending information to a number of members of a group in a communication network comprising a core network and a CDMA radio access network, the method comprising:
- broadcasting the information to the number of members of the group for a predetermined time period;
- and
- repeating the broadcasting if at least one of the members of the group has responded to the information before the predetermined period of time expires.
An apparatus for providing group call service in a communication network comprising core network and a CDMA radio access network, the apparatus comprising:
- a transmitter adapted to send an indication about status of a reverse link channel to a number of members of a group;
- a receiver adapted to receive a request for the reverse link channel from a plurality of the number of members of the group;
- and
- a processor adapted to grant the reverse link channel to one of the plurality of the number of members of the group.
An apparatus for providing group call service in a communication network comprising a core network and a CDMA radio access network, the apparatus comprising:
- a receiver adapted to receive an indication from a member of a group requesting to talk to a number of members of the group;
- a processor adapted to set up a call for the member, thereby granting the member talker status;
- and
- a transmitter adapted to notify the number of members in the group that the member is granted talker status.
Dependencies are inferred from the claim text.