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Media link establishment method for transmitting large message mode CPM messages to group

A technology of large message mode and media transmission link, applied in message/mailbox/announcement, transmission system, digital transmission system, etc., and can solve problems such as lack of

Active Publication Date: 2010-12-22
ZTE CORP
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Problems solved by technology

[0011] In view of this, the present invention provides a method for creating a media transmission link for transmitting a large message mode CPM message to a group, so as to solve the problem in the prior art when transmitting a large message mode CPM message to a group. Problems with the method of creating MSRP multi-hop transport links between

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  • Media link establishment method for transmitting large message mode CPM messages to group
  • Media link establishment method for transmitting large message mode CPM messages to group
  • Media link establishment method for transmitting large message mode CPM messages to group

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Embodiment Construction

[0030] Due to the large space occupied by CPM messages in the large message mode, SIP messages cannot be directly used for carrying them. Different from the transmission method of CPM messages in page-mode mode, the transmission paths of CPM messages in large message mode are divided into signaling paths and media paths. Commands are transmitted along the signaling path, and media are transmitted along the media path. Therefore, in the embodiment of the present invention, when transmitting the large message mode CPM message, first use the session invitation message (SIP INVITE) of the large message mode CPM message to create a session between the sender's CPM client and the receiver's CPM client, Complete the media negotiation, create a transmission link between the sender's CPM client and the receiver's CPM client, and use the message session relay protocol (Message Session Relay Protocol, referred to as MSRP) to send messages to the above-mentioned receiver through the create...

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Abstract

The invention provides a media link establishment method for transmitting large message mode CPM message MSRP to a group. The method is used for establishing an MSRP multi-hop media transmission link required by the large message mode CPM messages which is transmitted to the group by the transmitting party CPM client. The method comprises the following steps: the transmitting party CPM client, a source end participation function entity, a control function entity, a destination end participation function entity and a receiving party CPM client complete the SDP media parameter negotiation through the session invitation message and successful response message, and establish a first media transmission link between the transmitting party CPM client and the source end participation function entity, a second media transmission link between the source end participation function entity and the control function entity, a third media transmission link between the control function entity and the destination end participation function entity, and a fourth media transmission link between the destination end participation function entity and the receiving party CPM client based on the negotiation result. The invention can be used for transmitting the large message mode CPM messages to the target group.

Description

technical field [0001] The present invention relates to the technical field of mobile communication, in particular to a method for sending Converged IP Messaging (CPM for short), in particular to a method for creating a media link by sending a Large Message Mode CPM Message (Large Message Mode CPM Message). Background technique [0002] The CPM was proposed by the Open Mobile Architecture (OMA) in 2005, and its purpose is to realize the intercommunication of various message services, provide a unified message service, and provide a consistent and convenient message service experience. CPM integrates various existing message services, including instant message (Instant Message, referred to as IM), push-to-talk (Push-To-Talk over Cellular, referred to as POC), mobile e-mail (Mobile E-Email, referred to as MEM), Short Messaging Service (Short Messaging Service, SMS for short), Multimedia Messaging Service (Multimedia Messaging Service, MMS for short), etc. [0003] The main bu...

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Application Information

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IPC IPC(8): H04W4/12H04W76/02
CPCH04L51/38H04L12/5895H04L65/1069H04L67/14H04L51/56H04L51/58H04W4/14
Inventor 卢艳玕瓒珐·阿里陈军姚立哲谢曼郭寰
Owner ZTE CORP
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