Patent application number | Description | Published |
20090080449 | METHOD AND DEVICE FOR CONTROLLING MEDIA RESOURCES, METHOD AND SYSTEM FOR ESTABLISHING CALLS - The present invention discloses a media resource control method, including indicating source attributes of locally transmitted and/or received media to a first media gateway. An operation on source attributes of media can be performed concurrently with or separately from that on destination attributes of media. The invention further provides a device and a call establishment method and system, which use the above media resource control method. Since source attributes of media provided at a termination are described, the remote end can be notified conveniently when destination attributes of media provided at the termination are inconsistent with the source attributes; and since a gateway can obtain descriptions of source attributes of media from indications of a media gateway controller, the invention meets a condition in which the media gateway can determine legality of a received media packet in accordance with source attributes of the media packet to thereby avoid processing of a trash message and prevent an attack. | 03-26-2009 |
20090097477 | METHOD AND SYSTEM FOR REALIZING MEDIA STREAM INTERACTION AND MEDIA GATEWAY CONTROLLER AND MEDIA GATEWAY - A method and system for realizing media stream interaction are provided. The method includes the following steps: the MGC obtains the public network address corresponding to the media gateway MG in the private network, and the public network address is used as the remote address of the opposite side of the MG; then, the MGC sends the public network address to the opposite side; and the opposite side realizes media stream interaction with the MG in the private network by the public network address. Using this method, the media stream passing through across different IP domains in the media gateway can be realized. Also, a media gateway controller and a media gateway are provided. | 04-16-2009 |
20090135842 | METHOD AND SYSTEM FOR CONNECTING A MEDIA STREAM, AND METHOD AND SYSTEM FOR DETECTING A CONNECTIVITY - This invention discloses a method for connecting a media stream, which includes: transmitting, by a media gateway in a private network, a connecting message to an external network device through a network address translation device; the connecting message is used for generating a new address mapping, which is used for a subsequent media stream to pass through the network address translation device, in the network address translation device when there is no address mapping available in the network address translation device; and the connecting message is used for keeping alive an address mapping when the address mapping is already available in the network address translation device. The invention further discloses a system for connecting a media stream, two methods for detecting connectivity, and a system for detecting connectivity. | 05-28-2009 |
20090185563 | METHOD, SYSTEM AND APPARATUS FOR MEDIA GATEWAY TO TRANSMIT AND RECEIVE MULTICAST DATA - The present invention provides a method, system and apparatus for an MG to transmit and receive multicast data. A method for an MG to receive multicast data in embodiments of the present invention include the following: the MG receives a multicast-related indication from the MGC, reports the relevant information to the router in the network at the multicast source side according to the indication, and requests to join the multicast group. The MG receives the multicast data transmitted by the multicast source. A method for an MG to transmit multicast data in embodiments of the present invention include the following: the MG receives the multicast-related indication from the MGC; and the MG transmits the corresponding multicast data to the users in the network at the receiver side in the form of multicast according to the indication. | 07-23-2009 |
20090207841 | METHOD, APPARATUS AND SYSTEM FOR CONTROLLING MULTICAST BEARER RESOURCES - A method, apparatus, and system for controlling multicast bearer resources are disclosed, which employ a resource and admission control subsystem (RACS) to control the multicast bearer resources. The method includes: a network entity in a RACS receives a request for controlling multicast bearer resources from a bearer-layer network entity and controls the multicast bearer resources. The network entity in the RACS includes: a receiving unit adapted to receive a request for controlling multicast bearer resources from a bearer-layer network entity and a control unit adapted to control the multicast bearer resources. | 08-20-2009 |
20090274146 | METHOD, SYSTEM AND DEVICE FOR IMPLEMENTING NETWORK ADDRESS TRANSLATION TRAVERSAL - A method for implementing NAT traversal is disclosed herein. The first MGW and the ICE mechanism supporting device obtain the local candidate information and the candidate information of the peer end; the first MGW and the ICE mechanism supporting device perform connectivity check according to the candidate information; and the first MGW and the ICE mechanism supporting device transmit media streams according to the result of the connectivity check. A system and a device for implementing NAT traversal are also disclosed. The method, the system and the device under the present disclosure improve stability of transmitting media streams in a network inclusive of an MGC and an MGW (for example, an NGN). | 11-05-2009 |
20090274163 | METHOD, SYSTEM, AND APPARATUS FOR CONTROLLING MULTICAST BEARER RESOURCES - A method, a system, and an apparatus for controlling multicast bearer resources are disclosed. The method includes: a network entity in the RACS receives a request of controlling a multicast bearer resource and controls the multicast bearer resource according to the request. The method, the system and the apparatus disclosed herein can control the multicast bearer resource in the NGN. | 11-05-2009 |
20100027542 | METHOD, DEVICE AND SYSTEM FOR MULTICAST SERVICE AUTHORIZATION CONTROL - A method, a device and a system for multicast service authorization control are provided, so as to support that a multicast authorization control point dynamically updates a user's multicast service authority information and implements multicast authorization control on the user according to the dynamically updated multicast service authority information. The method includes: acquiring a user's multicast service authority information by a multicast authorization control point in the process of interacting with a bearer control layer; and implementing multicast authorization control on the user by the multicast authorization control point according to the acquired multicast service authority information. The multicast authorization control point includes an acquisition unit adapted to acquire a user's multicast service authority information in the process of interacting with a bearer control layer; and an authorization control unit adapted to implement multicast authorization control on the user according to the multicast service authority information acquired by the acquisition unit. | 02-04-2010 |
20110019682 | METHOD, MEDIA GATEWAY AND MEDIA GATEWAY CONTROLLER FOR MAINTAINING NAT ADDRESS MAPPING TABLE - A method for maintaining a Network Address Translation (NAT) address mapping table, a Media Gateway (MG) and a Media Gateway Controller (MGC) are disclosed herein. The method for maintaining the NAT address mapping table includes: the MG creates a NAT address mapping table context as instructed by a MGC, where the NAT address mapping table context stores at least one NAT address mapping entry; and the MG operates the NAT address mapping table context to maintain the NAT address mapping entry stored in the NAT address mapping table context. Through the embodiments of the present invention, the NAT address mapping table can be maintained on the MG by operating the created NAT address mapping table context. | 01-27-2011 |
20110019683 | METHOD, APPARATUS AND SYSTEM FOR MANAGING ROUTES - The present invention discloses a method, an apparatus, and a system for managing routes, enables the MG to implement routing functions in the network communications field, and facilitates the operations on the routing table in the MG. A route context stores route records, and the MG searches for a route by searching for the corresponding route context only, thus facilitating the route management. The embodiments of the present invention are primarily applied to the MG and the MGC, especially to the MG that implements the routing functions. | 01-27-2011 |
20110211586 | METHOD, MEDIA GATEWAY AND SYSTEM FOR MANAGING A FILTER RULE - A method, a Media Gateway (MG), and a system for managing a filter rule are disclosed. The method includes: The MG receives a processing message from a Media Gateway Controller (MGC); and the MG maintains the packet filter rule context according to the processing message, where the packet filter rule context includes at least one filter rule for filtering a packet received or sent by the MG. The processing message may be a message for creating, modifying or deleting the packet filter rule context. With the present disclosure, the MGC can manage the packet filter rule on the MG effectively. | 09-01-2011 |
20110267965 | METHOD, DEVICE, AND SYSTEM FOR CONNECTIVITY CHECK - The present invention relates to the field of communication technologies and discloses a method, device, and system for connectivity check. The method includes the following: a Media Gateway (MGW) receives an Additional Connectivity Check message sent by a Media Gateway Controller (MGC); and the MGW performs an additional connectivity check according to the Additional Connectivity Check message. With the connectivity check method, device, and system of the present invention, the efficiency of the connectivity check may be improved. | 11-03-2011 |
20120078637 | METHOD AND APPARATUS FOR PERFORMING AND CONTROLLING SPEECH RECOGNITION AND ENROLLMENT - A method and an apparatus for performing and controlling speech recognition and enrolment are provided. The method for performing speech recognition and enrolment includes: receiving a Speech Enrolment Start Request and a Speech Recognition Request sent from a media gateway controller (MGC); performing speech recognition and enrolment according to the Speech Enrolment Start Request and the Speech Recognition Request, and obtaining a recognition and enrolment result; and feeding back the recognition and enrolment result to the MGC. | 03-29-2012 |
20120084087 | METHOD, DEVICE, AND SYSTEM FOR SPEAKER RECOGNITION - A method, device, and system for speaker recognition are provided. The method includes: receiving a Speaker Verification instruction sent from a Media Gateway Controller (MGC) ( | 04-05-2012 |