摘要:
A method, user equipment and system provide simultaneous Push-To-Talk (PTT) over Cellular (PoC) multimedia services. After a PoC client participates in multiple sessions according to a simultaneous PoC multimedia service or Enhanced Simultaneous Session Support (ESS) set by a user for a PoC multimedia call service, a PoC server can simultaneously transmit the media streams to the PoC client without filtering when media streams of the same media type are transmitted in different sessions. The client can set simultaneous multi-reception modes on a session-by-session basis according to a user's intention, and on a media type-by-media type basis in each session.
摘要:
A method and system for providing desired media when a Push-To-Talk (PTT) over Cellular (PoC) User Equipment (UE) retrieves media information stored in a PoC box and requests a desired media transmission in a PoC system. In the PoC system, the PoC UE sends, to the PoC box, a request for media information stored in the PoC box to receive media stored in the PoC box. When receiving the media information request, the PoC box sends the stored media information to the PoC UE. The PoC UE selects desired media using the received media information and requests a PoC box media transmission. The PoC box sends the requested media to the PoC UE.
摘要:
A method, a terminal, and a system for establishing a Push to Talk Over Cellular (PoC) group session in a PoC network based on session initiation information, such as information regarding presence of clients to be invited or session start-up time. According to the method, Universal Resource Indicator (URI) information regarding invitation and Information Reservation Service (IRS) parameters are set up in a PoC eXtensible markup language Document Management Server (XDMS), and a PoC server is requested to provide an IRS so that a session is established.
摘要:
Provided is a method and system for requesting and granting a media transmission right of a PoC user. The method includes a PoC client transmitting an MBCP Request message to a PoC server, the PoC server receiving the MBCP Request message, determining whether a current state corresponds to a media transmission denial condition, and if it is determined that the current state corresponds to a media transmission denial condition, transmitting an MBCP Deny message containing at least one of time information of a media transmission timer and time information of a retry-after timer to the PoC client, and the PoC client receiving the MBCP Deny message, activating the media transmission timer and the retry-after timer using the respective time information, and re-transmitting the MBCP Request message to the PoC server if one of the media transmission timer and the retry-after timer, the retry-after timer having a longer time value, expires.
摘要:
A method and system for providing desired media when a Push-To-Talk (PTT) over Cellular (PoC) User Equipment (UE) retrieves media information stored in a PoC box and requests a desired media transmission in a PoC system. In the PoC system, the PoC UE sends, to the PoC box, a request for media information stored in the PoC box to receive media stored in the PoC box. When receiving the media information request, the PoC box sends the stored media information to the PoC UE. The PoC UE selects desired media using the received media information and requests a PoC box media transmission. The PoC box sends the requested media to the PoC UE.
摘要:
A method is disclosed which sets a PoC Box service and transmits information on a service identifier by using a standard SIP, a SDP, an XCAP, and a PAP, in order to remain compatible with conventional PoC technology when performing call processing of session connection using a PoC Box. Further, the method stores only pre-designated media in a PoC Box according to a type of media transmitted in consideration of features of a PoC multimedia session.
摘要:
As described above, when a particular PoC client participating in a PoC session requests media transmission to a PoC server during transmission of media from another PoC client, the PoC server transitions the PoC client with the floor to a suspended state by sending an MB Suspend message and grants the floor to the requesting PoC client. After media transmission of the interrupting PoC client, the PoC server returns the floor to the interrupted PoC client. Therefore, the privileged PoC client in a current PoC infrastructure interrupts the ongoing conversation and sends media, after which the floor is returned to the interrupted PoC client without issuing an explicit media request from the interrupted PoC client. Even in the pre-emptive case scenario where the pre-emptive PoC client interrupts the ongoing conversation, the conversation can be continued in a natural way.
摘要:
Disclosed is a method and system for initiating a Push-To-Talk over Cellular (PoC) session between PoC clients supporting various types of media. A PoC client performing Open Mobile Alliance-type multimedia communication service supports a plurality of media types and makes it possible to independently and more conveniently initiate a session irrespective of answer modes set according to media types when the answer modes according to the media types are not equal to each other.
摘要:
Provided are a system for establishing and managing a Push To Talk (PTT) over Cellular (PoC) session between PoC clients supporting various media types, a method thereof, and a User Equipment (UE) therefor. When a PoC client performing an Open Mobile Alliance (OMA) PoC multimedia call service supports a plurality of media types, and media types supported by PoC clients are not common, a PoC session can be established to support only media types set to be transmitted in a first response message after the session is established. In addition, a method of efficiently managing a session by updating the session when a newly supported media type is provided or when a recipient of an existing media type is changed is suggested.
摘要:
Provided is a method and system for requesting and granting a media transmission right of a PoC user. The method includes a PoC client transmitting an MBCP Request message to a PoC server, the PoC server receiving the MBCP Request message, determining whether a current state corresponds to a media transmission denial condition, and if it is determined that the current state corresponds to a media transmission denial condition, transmitting an MBCP Deny message containing at least one of time information of a media transmission timer and time information of a retry-after timer to the PoC client, and the PoC client receiving the MBCP Deny message, activating the media transmission timer and the retry-after timer using the respective time information, and re-transmitting the MBCP Request message to the PoC server if one of the media transmission timer and the retry-after timer, the retry-after timer having a longer time value, expires.