Apparatus and Method for Providing Poc Service in Wireless Communication System Supporting Bcast Service

• US 20070249333A1
• Filed: 08/12/2005
• Published: 10/25/2007
• Est. Priority Date: 08/17/2004
• Status: Abandoned Application

• Current Assignee: Joon-Goo Park, Sung-Ho Choi, Sung-Jin Park, Sung-Oh Hwang
• Original Assignee: Joon-Goo Park, Sung-Ho Choi, Sung-Jin Park, Sung-Oh Hwang
• Inventors: Choi, Sung-Ho, Park, Sung-Jin, Hwang, Sung-Oh, Park, Joon-Goo
• Application Number:
  US11/660,839
• Publication Number:
  US 20070249333A1
• Time in Patent Office: Days
• US Class Current: 455/422.100
• CPC Class Codes: H04L 65/1016 IP multimedia subsystem [IMS]
• CPC Class Codes: H04L 65/4061 Push-to services, e.g. push-to-talk or push-to-video
• CPC Class Codes: H04W 4/10 Push-to-Talk [PTT] or Push-On-Call services
• CPC Class Codes: H04W 76/45 for Push-to-Talk [PTT] or Push-to-Talk over cellular [PoC] services

Abstract

an Disclosed are a method and an apparatus for providing a PoC service in a radio communication system supporting a BCAST service. For the PoC service in the radio communication system supporting the BCAST service, a first terminal joining the PoC service through the BCAST service transmits user data for the PoC service over an uplink dedicated bearer, and the user data reach a PoC server, which controls the PoC service, over the uplink dedicated bearer. The PoC server transmits the user data to a BCAST server controlling the BCAST service and, from the BCAST service server, the user data reach plural second terminals joining the PoC service over a downlink shared bearer. In this way, radio resources can be efficiently used when the PoC service is performed in a random area, and an a BCAST service operator d a PoC service operator is provided.

Claims

1. A method for providing a PoC service in a radio communication system supporting a BCAST service, the method comprising the steps of:

transmitting, by a first terminal joining the PoC service through the BCAST service, user data for the PoC service over an uplink dedicated bearer;

passing the user data through the uplink dedicated bearer to reach a PoC server controlling the PoC service;

transmitting, by the PoC server, the user data to a BCAST server controlling the BCAST service; and

passing, from the BCAST server, the user data through a downlink shared bearer to reach a plurality of second terminals joining the PoC service.

2. The method as claimed in claim 1, further comprising the step of, if the first terminal and the plurality of second terminals register with the PoC service and join the BCAST service, exchanging information on the first terminal and the plurality of second terminals between the PoC server and the BCAST, and setting up a bearer for the user data transmitted from the PoC server to the BCAST server.

3. A method for operating a BCAST server controlling a BCAST service in a radio communication system supporting a PoC service through the BCAST service, the method comprising the steps of:

transferring information on a terminal requesting the BCAST service for the PoC service to the PoC server controlling the PoC service, and exchanging related information with the PoC server;

setting up an uplink dedicated bearer for the PoC service from the PoC server to the BCAST server;

setting up a downlink shared bearer for the BCAST service between a PS domain server serving the terminal and the BCAST server; and

receiving user data of the terminal for the PoC service from the PoC server over the uplink dedicated bearer, and transmitting the user data from the PS domain server over the downlink shared bearer.

4. A method for operating a PoC server controlling a PoC service in a radio communication system supporting the PoC service through a BCAST service, the method comprising the steps of:

receiving information on a terminal requesting the PoC service through the BCAST service from a BCAST server controlling the BCAST service, and exchanging related information with the BCAST server;

setting up an uplink dedicated bearer for the PoC service from a PS domain server serving the terminal to the BCAST server through the PoC server; and

receiving user data of the terminal for the PoC service from the PS domain server over the uplink dedicated bearer, and transmitting the user data to the BCAST server over the uplink dedicated bearer.

5. A method for operating a PS domain server, which serves a terminal using a PoC service through a BCAST service, in a radio communication system supporting the PoC service through the BCAST service, the method comprising the steps of:

setting up an uplink dedicated bearer from the terminal to the PS domain server over an RAN serving the terminal which requests the PoC service through the BCAST service;

setting up a downlink shared bearer for the BCAST service from the BCAST server controlling the BCAST service to the PS domain server;

transmitting a start message to the RAN and setting up a downlink shared bearer for the BCAST service from the PS domain server to the terminal over the RAN;

receiving user data from the terminal over the uplink dedicated bearer by way of the RAN, and transmitting the user data to the PoC server controlling the PoC service; and

receiving BCAST service data for the BCAST service from the BCAST server, and transmitting the BCAST service data to the terminal over the downlink shared bearer by way of the RAN.

6. A method for operating an RAN, which serves a terminal using a PoC service through a BCAST service, in a radio communication system supporting the PoC service through the BCAST service, the method comprising the steps of:

receiving a request for radio connection from the terminal, and setting up the radio connection;

receiving a start message of the BCAST service for the PoC service from a PS domain server serving the terminal, and setting up a downlink shared bearer from the PS domain server to the RAN;

transmitting channel information of the downlink shared bearer for the PoC service to the terminal, and setting up an uplink dedicated bearer for the PoC service from the terminal to the RAN;

receiving user data from the terminal over the uplink dedicated bearer, and transferring the user data to a PoC server controlling the PoC service through the PS domain server; and

receiving BCAST service data for the BCAST service from the PS domain server, and transmitting the BCAST service data to the terminal over the downlink shared bearer

7. A method for operating a terminal, which uses a PoC service through a BCAST service, in a radio communication system supporting the PoC service through the BCAST service, the method comprising the steps of:

setting up radio connection to an RAN serving the terminal for the PoC service through the BCAST service;

performing PS domain registration with a PS domain server serving the terminal through the radio connection;

performing the PoC service joining for the PoC server controlling the PoC service through the PS domain server;

performing the BCAST service joining for the BCAST server controlling the BCAST service through the PS domain server;

transmitting channel information of a downlink shared bearer for the BCAST service from the RAN, and setting up an uplink dedicated bearer for the PoC service from the terminal to the RAN;

setting up an uplink transmission bearer for the PoC service to transmit user data over the uplink transmission bearer; and

receiving BCAST service data for the BCAST service from the RAN over the downlink shared bearer.

8. An apparatus for providing a PoC service in a radio communication system supporting a BCAST service, the apparatus comprising:

a plurality of terminals joining the PoC service through the BCAST service, transmitting user data for the PoC service over an uplink dedicated bearer and receiving BCAST service data for the PoC service over a downlink shared bearer;

an RAN receiving the user data from any one of the plurality of terminals over the uplink dedicated bearer and transmitting the BCAST service data to the plurality of terminals over the downlink shared bearer;

a PS domain server connected to the RAN for authenticating permissions of using a PS domain for the BCAST and PoC services to the plurality of terminals,

and allocating and setting up the uplink dedicated bearer and the downlink shared bearer for the plurality of terminals;

a BCAST server for controlling the PoC service and transferring the BCAST service data to the PS domain server; and

a PoC sever for controlling the PoC service, receiving the user data from the PS domain server and transferring the received user data to the BCAST server.