Patent application number | Description | Published |
20090147754 | USER EQUIPMENT, CALL CONTINUITY APPLICATION SERVER, AND NETWORK HANDOVER METHOD - A network handover method applicable to network handover in ringing/ring back tone (RBT) or call hold is provided. According to this method, in ringing/RBT, one party performs a session negotiation with an Other End Point (OEP) via a call continuity application server, and then sends an off-hook signal to the OEP via the call continuity application server after the negotiation succeeds. Further, a call continuity application server and a user equipment (UE) are provided. According to the present disclosure, in ringing/RBT or call hold, even if the network coverage is not good, the UE may also be handed over to another network through call continuity, so as to effectively prevent the UE from dropping a call in ringing/RBT or call hold and thus improve the conversation quality of the user. | 06-11-2009 |
20090190501 | METHOD, EQUIPMENT AND SYSTEM FOR DEREGISTERING A WIRELESS IP ACCESS NETWORK CONTACT ADDRESS - A method and equipment for deregistering a wireless IP access network contact address are provided. When a call corresponding to a common subscriber ID of a TE is received after the TE leaves an IP access network abnormally, the method and the equipment can avoid problems caused by still delivering the subsequent call from the IP access network according to an IP access network contact address associated with the common subscriber ID. The method includes notifying an IMS network to deregister a contact address of a TE in a first wireless IP access network through a current available access network of the TE if the contact address of the TE in the first wireless IP access network is not deregistered to the IMS network when the TE leaves the first wireless IP access network. | 07-30-2009 |
20090196286 | Domain Transfer Method, Server and Controller - The present embodiments disclose a domain transfer method, a server and a controller. The domain transfer method includes: receiving a call request from a terminal, where the request carries a session transfer identifier allocated by a server in advance for identifying the session and domain transfer of the session; and transferring the session to another domain according to the session transfer identifier. With the present invention, domain transfer is based on a dynamically allocated Session Transfer Identifier (STID) so as to guarantee the correctness and effectiveness of domain transfer and promote the diversification of network services. Network resources are saved and the efficiency of domain transfer is higher. | 08-06-2009 |
20090201922 | METHOD FOR CHANGING SESSION MEDIA, METHOD FOR ESTABLISHING A CALL, AND EQUIPMENT THEREOF - A method for changing ICS session media includes: receiving a media type change request including a new media type sent from a terminal equipment or a MSC, releasing a CS call leg based on an original media type between an ICCF and the terminal equipment, establishing a CS call leg based on the new media type between the ICCF and the terminal equipment, and updating a media type of a second call leg between the ICCF and a second party into the new media type; or, receiving a media type change request including a new media type sent from a second party, updating a media type of a second call leg between an ICCF and the second party into the new media type, releasing a CS call leg based on an original media type between the ICCF and a terminal equipment, and establishing a CS call leg based on the new media type between the ICCF and the terminal equipment. | 08-13-2009 |
20090290576 | CALL CONTROL METHOD, CIRCUIT-SWITCHED DOMAIN ADAPTER AND TERMINAL DEVICE - A call control method which includes: establishing a circuit-switched call leg with a terminal device; establishing a packet-switched call leg with a second party; and establishing a call connection between the terminal device and the second party through binding the circuit-switched call leg and the packet-switched call leg. A circuit-switched domain adapter and a terminal device are also provided to realize a call control to the circuit-switched terminal device by a packet-switched control platform. | 11-26-2009 |
20100023624 | METHOD, USER EQUIPMENT AND APPLICATION SERVER FOR ADDING MEDIA STREAM OF MULTIMEDIA SESSION - A method, user equipment and application server for adding media stream of multimedia session. A UE | 01-28-2010 |
20100146142 | METHOD, APPLICATION SERVER AND USER EQUIPMENT FOR TRANSFERRING MEDIA STREAMS OF MULTIMEDIA SESSION - A method, Application Server (AS) and User Equipment (UE) for transferring media streams of a multimedia session are provided. A first UE sends a request for transferring media streams of a multimedia session to an AS, where the request carries the ID of a third UE and the media type of media streams requested to be transferred; and the third UE establishes media streams of the media type with a second UE under the control of the AS. | 06-10-2010 |
20100202447 | Call Transfer Method, System and Device - A call transfer method includes releasing a call signaling connection between a call transfer server and the called UE after knowing that a called user equipment performs call transfer. A service request is sent for redirecting to a third party UE to a telephony application server. | 08-12-2010 |
20100215037 | MULTIMEDIA SESSION CALL CONTROL METHOD AND APPLICATION SERVER - A multimedia session call control method and an Application Server (AS) are provided. The multimedia session call control method includes these steps: a multi-UE party performs a multimedia session with a peer under control of an AS; a master UE of the multi-UE party establishes a session with a third party under control of the AS; and the AS binds a call leg between a slave UE of the multi-UE party and the AS to the session established with the third party. | 08-26-2010 |
20100216445 | Call Transfer Method, System and Device - A call transfer method, system, and device are provided. The method includes obtaining information that the mobile switching center (MSC) of a called user equipment (UE) executes a call transfer service, and instructing the MSC of the called UE to send a call request to a third party UE according to the call originating process of the called UE. | 08-26-2010 |
20100238841 | Method and Device for Holding Calls - In a method for holding calls, a first UE performs a first call with a second UE through a first CS access call leg. A signaling endpoint of the first CS access call leg is an ICCF and the first CS access call leg supports a first media type. An ICCC request is sent to hold the first call. The first UE sends an ICCC request to initiate a second call with a third UE. The second call is performed with the third UE through a second CS access call leg. The second CS access call leg supports a second media type. | 09-23-2010 |
20100240344 | Method, System and Apparatus for Setting Up Multimedia Call - A method includes receiving a multimedia request message; setting up a multimedia call path to a CS UE according to the multimedia request message; negotiating a media coding mode with the CS UE and negotiating the media coding mode with a peer UE according to the multimedia call path; and setting up a multimedia call between the CS UE and the peer UE after determining the coding mode of the CS UE and the peer UE. In the embodiments of the present invention, the MSC negotiates the coding mode of the CS UE and the peer UE (such as an IMS UE), and sets up a multimedia call between the CS UE and the peer UE, thus overcoming the inability of setting up a multimedia call between the CS UE and the peer UE in the prior art. | 09-23-2010 |
20110002329 | METHOD, EQUIPMENT AND MOBILE COMMUNICATION SYSTEM FOR REALIZING EXPLICIT CALL TRANSFER - A method, equipment, and a mobile communication system for realizing explicit call transfer are provided. The method for realizing explicit call transfer includes the following steps. A service centralization & continuity application server (SCC AS) receives a call request sent by a second user equipment (UE), and sends the call request to a third UE, in which an instruction for replacing a call between a first UE and the third UE is carried in the call request. A message returned by the third UE according to the call request is received, and the third UE is controlled to establish a connection with the second UE and to break a connection with the first UE. The third UE is an IP multimedia subsystem centralized service user equipment (ICS UE). | 01-06-2011 |
20110026518 | METHOD, DEVICE, AND SYSTEM FOR TRANSFERRING SERVICE CONTROL SIGNALLING PATH - A method, device, and system for transferring a Service Control Signalling Path are provided. The method for transferring a Service Control Signalling Path includes: establishing a connection with an opposite end by a User Equipment (UE), where the UE uses a Circuit Switched (CS) bearer in a CS network and a Service Control Signalling Path in a first Packet Switched (PS) network; sending a transfer request via a second PS network, to instruct a network side to transfer the Service Control Signalling Path according to the transfer request. Thus, the UE can replace a current Gm reference point with a Gm reference point of a new and available PS network when the PS network where the current Gm reference point is located is unavailable, so as to ensure smooth data transmission. | 02-03-2011 |
20110044211 | METHOD AND DEVICE FOR HOLDING CALLS BETWEEN NETWORKS - A method and a device for holding calls between networks are disclosed herein. The method includes: receiving a call hold request sent by a UE in a CS network, where the call hold request carries an indication that the UE in the CS network will continue sending media streams; and instructing a peer device to keep receiving the media streams from the UE in the CS network and stop sending the media streams. In the technical solution under the present invention, the UE in the CS network partially releases the radio resources after initiating the call hold operation, and therefore, the UE in the CS network can play local media files to the peer device after the call is held, thus saving network resources and improving the user experience. | 02-24-2011 |
20120026919 | METHOD, EQUIPMENT AND MOBILE COMMUNICATION SYSTEM FOR REALIZING EXPLICIT CALL TRANSFER - A method, equipment, and a mobile communication system for realizing explicit call transfer are provided. The method for realizing explicit call transfer includes the following steps. A service centralization & continuity application server (SCC AS) receives a call request sent by a second user equipment (UE), and sends the call request to a third UE, in which an instruction for replacing a call between a first UE and the third UE is carried in the call request. A message returned by the third UE according to the call request is received, and the third UE is controlled to establish a connection with the second UE and to break a connection with the first UE. The third UE is an IP multimedia subsystem centralized service user equipment (ICS UE). | 02-02-2012 |
20120063366 | METHOD AND APPARATUS FOR CALL CONTROL IN A COMMUNICATIONS NETWORK - A call control method that includes: establishing a circuit-switched call leg with a terminal device; establishing a packet-switched call leg with a second party; and establishing a call connection between the terminal device and the second party by binding the circuit-switched call leg and the packet-switched call leg. A circuit-switched domain adapter and a terminal device are also provided to realize a call control to the circuit-switched terminal device by a packet-switched control platform. | 03-15-2012 |
20120063420 | METHOD AND SYSTEM FOR CONTROLLING A CALL HANDOVER BETWEEN TELECOMMUNICATION NETWORKS - A method for controlling a call handover between telecommunication networks includes determining whether a User Equipment (UE), in communication with a first network, is engaged in a call attempt when the UE is to be transferred from the first network to a second network, if the UE is engaged in a call attempt, maintaining the UE communicating with the first network, and if the UE is not engaged in a call attempt, initiating the handover from the first network to the second network. | 03-15-2012 |
20120281595 | METHOD AND DEVICE FOR HOLDING CALLS BETWEEN NETWORKS - A method and a device for holding calls between networks are disclosed herein. The method includes: receiving a call hold request sent by a UE in a CS network, where the call hold request carries an indication that the UE in the CS network will continue sending media streams; and instructing a peer device to keep receiving the media streams from the UE in the CS network and stop sending the media streams. In the technical solution under the present invention, the UE in the CS network partially releases the radio resources after initiating the call hold operation, and therefore, the UE in the CS network can play local media files to the peer device after the call is held, thus saving network resources and improving the user experience. | 11-08-2012 |