CN101568068A - Broadcasting/multicasting method and broadcasting/multicasting equipment - Google Patents
Broadcasting/multicasting method and broadcasting/multicasting equipment Download PDFInfo
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
- H04L65/10—Architectures or entities
- H04L65/1016—IP multimedia subsystem [IMS]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
- H04L65/60—Network streaming of media packets
- H04L65/61—Network streaming of media packets for supporting one-way streaming services, e.g. Internet radio
- H04L65/611—Network streaming of media packets for supporting one-way streaming services, e.g. Internet radio for multicast or broadcast
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
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Abstract
The embodiment of the invention discloses a broadcasting/multicasting method by which a broadcasting/multicasting media stream provided by a user home network is sent to a user through network carrying provided by an accessing network of the user. The invention also discloses user equipment and an application server. By adopting the invention, the corresponding network carrying is established between the accessing network and the home network so as to conduct the broadcasting/multicasting service for the user equipment in the accessing network by the application network in the home network.
Description
Technical Field
The present invention relates to the field of communications, and in particular, to a broadcast/multicast method, a user equipment, and an application server.
Background
Multimedia Broadcast/Multicast Service (MBMS) can efficiently play various rich and exciting Multimedia contents through the existing Universal Mobile Telecommunications System (UMTS) network, and can enable a Mobile user to receive services such as news, weather and traffic announcements, stock price information, music files, television programs, streaming media, and the like through user equipment.
Broadcast/multicast services are communications that transmit packets from the same source to multiple destination addresses, i.e., point-to-multipoint communications. Whereas broadcast is mainly used to deliver broadcast services to all user equipments in the network, multicast is mainly used to deliver multicast services to user equipments in the network that have joined a certain multicast group.
In the third generation partnership project (3)rdIn the MBMS architecture of Generation Partnership Project, 3GPP), a Broadcast/Multicast Service center (BM-SC) has functions of user management (such as user identity management), content association, Service management, user notification, and the like, and is also an entity that determines a Broadcast/Multicast network bearer in a network and performs network bearer resource allocation.
When the user equipment roams to a visited network, an application server providing broadcast/multicast service and the user equipment are under control of different networks and operators, that is, the application server is under control of a user home network and a corresponding operator, and the user equipment is under control of the visited network and a corresponding operator, whereas in an application based on an Internet Protocol Multimedia Subsystem (IMS), the application server in the home network cannot develop broadcast/multicast service for the user equipment in the visited network.
Disclosure of Invention
The technical problem to be solved by the embodiments of the present invention is to provide a broadcast/multicast method, a user equipment, and an application server, so as to implement that an application server in a home network performs a broadcast/multicast service for a user equipment in a visited network.
In order to solve the foregoing technical problem, an embodiment of the present invention provides a broadcast/multicast method, including:
and sending the broadcast/multicast media stream provided by the user home network to the user through the network bearer provided by the visited network where the user is located.
Correspondingly, an embodiment of the present invention further provides a user equipment, including:
the generating unit generates a message carrying network bearing information which is provided by an access network where a user is located and used for bearing the broadcast/multicast media stream;
a transmitting unit that transmits the message.
Correspondingly, an embodiment of the present invention further provides an application server, including:
the acquisition unit is used for acquiring the broadcast/multicast media stream provided by the user home network;
and the sending unit is used for sending the broadcast/multicast media stream to the user through a network bearer provided by the access network where the user is located.
The embodiment of the invention sends the broadcast/multicast media stream provided by the user home network to the user through the network load provided by the access network of the user, thereby realizing that the application server in the home network carries out broadcast/multicast service for the user equipment in the access network by establishing corresponding network load in the access network and the home network.
Drawings
Fig. 1 is a schematic diagram of a first embodiment of a broadcast/multicast method of the present invention;
fig. 2 is a schematic diagram of a second embodiment of the broadcast/multicast method of the present invention;
fig. 3 is a schematic diagram of a third embodiment of the broadcast/multicast method of the present invention;
fig. 4 is a schematic diagram of a first embodiment of the broadcast/multicast system of the present invention;
fig. 5 is a schematic diagram of a second embodiment of the broadcast/multicast system of the present invention;
fig. 6 is a schematic diagram of a third embodiment of the broadcast/multicast system of the present invention;
FIG. 7 is a schematic diagram of an embodiment of the broadcast/multicast system of the present invention including an address translator;
fig. 8 is a schematic diagram of an embodiment of the broadcast/multicast system of the present invention including a content forwarding entity;
fig. 9 is a schematic diagram of an embodiment of the broadcast/multicast system of the present invention including multiple forwarding devices;
fig. 10 is a schematic diagram of an embodiment of a broadcast/multicast system of the present invention using an OMA BCAST service architecture.
Detailed Description
The embodiment of the invention provides a broadcast/multicast method, user equipment, an application server and a broadcast/multicast system, which can realize that the application server in the home network carries out broadcast/multicast service for the user equipment in the visited network by establishing corresponding network bearing in the visited network and the home network.
The following describes embodiments of the present invention in detail with reference to the accompanying drawings.
Fig. 1 is a first embodiment of the broadcast/multicast method according to the present invention, and referring to the drawing, the method is based on the process that a user roaming in a visited network registers to the IMS of a user home network providing broadcast/multicast media stream through a Proxy-Call Session Control Function (P-CSCF) in the visited network, and mainly includes:
101, the user sends a registration request message (a type of registration message) to a P-CSCF in the visited network, the registration request message carries broadcast/multicast service information, and the broadcast/multicast service information carries network bearer information provided by the visited network for bearing broadcast/multicast media streams (e.g. network identifier of broadcast/multicast bearer network where the user is located, broadcast/multicast bearer network management entity information, etc., where the broadcast/multicast bearer network management entity may be BM-SC), and may also carry domain name of user home network, access network information of visited network where the user is located, support capability information of the user terminal for broadcast/multicast service, etc., the network bearing information may be an IP address allocated by the visited network for the user, and the like;
102, after receiving the registration request message sent by the user, the P-CSCF sends the registration request message to the IMS of the home network, that is, the P-CSCF sends the registration request message to a Serving-call session Control Function (S-CSCF) in the home network, where the registration request message carries the broadcast/multicast service information mentioned in the 101;
103, continuing the registration process of the user, the S-CSCF sends Cx-Put message supported by the HSS to a Home Subscriber Server (HSS) for user identity authentication;
104, HSS returns response message to the Cx-Put message, such as Cx-Put Resp message or Cx-Pull Resp message, to S-CSCF;
105, the S-CSCF returns a response message, such as a 200OK response message, to the P-CSCF for the registration request message sent by the P-CSCF;
the P-CSCF returns a response message, such as a 200OK response message, to the user for the registration request message sent by the user 106.
Then, the S-CSCF may send the broadcast/multicast service information to the application server, where the broadcast/multicast service information may carry the network bearer information and the support capability information of the user terminal on the broadcast/multicast service, and the application server may initiate a network bearer between the visited network and the home network according to the network bearer information and the support capability information of the user terminal on the broadcast/multicast service, and may reserve a network bearer resource corresponding to the network bearer to send a broadcast/multicast media stream to the user, where the initiation process of the network bearer specifically includes:
and judging whether the current session meets the condition of the network bearer or not according to the network bearer information carried in the broadcast multicast service information and the support capability information of the user terminal to the broadcast/multicast service, and if so, reserving network bearer resources corresponding to the network bearer for the session.
Fig. 2 is a schematic diagram of a second embodiment of the broadcast/multicast method according to the present invention, and referring to the diagram, the method is based on a process of initiating a session by roaming a user in a visited network, and the case of using an MBMS network is illustrated in fig. 2 but is not limited thereto, and mainly includes:
an MBMS network in an access network sends, to a user, network bearer information provided by the access network for bearing a broadcast/multicast media stream, where the network bearer information may be an IP address allocated by the access network for the user, and the like;
202, after receiving the network bearer information, the user sends a session message, such as an INVITE message, to a participating application Server in the user's home network, where the INVITE message carries broadcast/multicast service information, and the broadcast/multicast service information carries network bearer information (such as a network identifier of a broadcast/multicast bearer network where the user is located, broadcast/multicast bearer network management entity information, and the like) provided by the visited network and used for bearing a broadcast/multicast media stream, and may also carry a domain name of the user's home network, access network information of a visited network where the user is located, and support capability information of the user terminal for the broadcast/multicast service, and the participating application Server is an application Server related to the user, such as a mobile phone talkback Server (Push talk over Cellular Server, PoC Server) participating function (PoC Server performingperting function) section;
it should be noted that the visited network where the user roams may be a Broadcast/multicast network provided by a mobile operator, where the Broadcast/multicast network may be an MBMS network, a Broadcast/multicast service (Broadcast/multicast service BCMCS) network or a Digital television Broadcast (DVB) network, or may be other networks, such as a Broadcast television network, and therefore the network bearer information may be network bearer information corresponding to the above Broadcast/multicast networks;
203, after receiving the INVITE message, the participating application Server sends the INVITE message to a control application Server in the user home network, where the control application Server is an application Server related to session control, such as a PoC Server Controlling function (PoC Server Performing Controlling function) part;
it should be noted that the control application server may also be an independent network element separately existing outside the home network;
204, after receiving the INVITE message, the control application server parses out broadcast/multicast service information carried in the INVITE message, where the broadcast/multicast service information may carry the network bearer information and the support capability information of the user terminal for the broadcast/multicast service, and then may determine whether the current session meets the condition of the network bearer according to the network bearer information and the support capability information of the user terminal for the broadcast/multicast service, and in addition, the control application server may also suggest or determine availability of network bearer resources corresponding to the network bearer information;
it should be noted that this step 204 can also be performed between the following steps 206 and 207;
205, continuing the above session flow, controlling the application server to send an INVITE message to the called party, specifically, in order to save message amount, the broadcast/multicast service information may not be carried in the INVITE message;
206, controlling the application server to receive a response message returned by the called party, such as a 200OK response message;
207, when it is determined in the step 204 that the current session meets the network bearer condition, controlling the application server to reserve a network bearer resource corresponding to the network bearer information for the current session, specifically, controlling the application server to initiate reservation of the network bearer resource to a participating application server and an MBMS network in an visited network according to the network bearer information, or controlling the application server to trigger a broadcast/multicast bearer network management entity in the home network (e.g., BM-SC in the MBMS network in the home network) to initiate reservation of the network bearer resource, for example, the BM-SC sends a network bearer resource reservation request to a network element corresponding to the network bearer in the visited network by using a Roaming Agreement (RA) between operators;
208, continuing the session flow, and controlling the application server to send a 200OK response message to the participating application server;
the participating application server returns a 200OK response message to the user in the visited network 209.
Fig. 3 is a schematic diagram of a third embodiment of the broadcast/multicast method of the present invention, and with reference to the figure, the method is mainly implemented by means of settings, and mainly includes:
301, an MBMS network in an access network sends, to a user, network bearer information provided by the access network for bearing a broadcast/multicast media stream, where the network bearer information may be an IP address allocated by the access network for the user, and the like;
302, after receiving the network bearer information, a user sends a service setting request message (one kind of service setting message) to a participating application server in a user home network, such as a Session Initiation Protocol (SIP) Publish (Publish) message, where the service setting request message carries broadcast/multicast service information, and the broadcast/multicast service information carries network bearer information received by the user;
303, after receiving the SIP Publish message carrying the network bearer information, the participating application server returns a 200OK response message to the user, and the participating application server analyzes and stores the network bearer information for session establishment and use related to the user, where the network bearer information may be updated or set with an effective condition (when the effective condition is not satisfied, the network bearer information is invalid);
304, the user sends a session message, such as an INVITE message, to the participating application server, where the INVITE message may carry information of the support capability of the user terminal to the broadcast/multicast service, and may also carry confirmation information that the user decides whether to initiate the broadcast/multicast service and use the network bearer of the broadcast/multicast service, etc.;
305, after receiving the INVITE message, the participating application server parses the information carried in the message, such as one or a combination of multiple of the support capability information and the confirmation information, and determines whether the current session meets the network bearing condition according to the parsed information and the previously stored network bearing information;
306, continuing the above session flow, the participating application server sending INVITE message to the controlling application server;
307, controlling the application server to continue processing the INVITE message, and sending the INVITE message to the called party;
308, controlling the application server to receive a 200OK response message returned by the called party;
309, controlling the application server to send 200OK response message to the participating application server;
310, when it is determined in the step 305 that the current session meets the condition of network bearer, the participating application server reserves a network bearer resource corresponding to the network bearer for the current session, specifically, the participating application server may initiate reservation of the network bearer resource to an MBMS network in a visited network, or the participating application server triggers a broadcast/multicast bearer network management entity (e.g., BM-SC in the MBMS network in the home network) in the home network to initiate reservation of the network bearer resource, for example, the BM-SC sends a network bearer resource reservation request to a network element corresponding to the network bearer in the visited network by using an RA between operators;
the participating application server returns a 200OK response message to the user in the visited network 311.
Based on the broadcast/multicast method in the embodiment of the present invention as shown in fig. 1, fig. 2, or fig. 3, after the network bearer resource is reserved, the following process can be performed, where the process is a process of sending broadcast/multicast service information using an IP address:
when the visited network and the home network use the broadcast/multicast IP addresses which are planned in a unified manner, and the network bearing information is the IP address of the visited network where the user roams currently, at this time, an application server (such as a participation server providing a broadcast/multicast media stream) directly sends the broadcast/multicast media stream to the IP address (namely, the user) through a network bearing resource (IP network bearing resource) corresponding to the IP address, and because the visited network and the home network use the broadcast/multicast IP addresses which are planned in a unified manner, the broadcast/multicast media stream can be sent to the IP address according to an IP routing manner; the visited Network and the home Network use uniformly planned broadcast/multicast IP addresses, for example, a Virtual Private Network (VPN) corresponding to the visited Network and a VPN corresponding to the home Network are planned by uniform IP addresses, and a Network element in the visited Network and a Network element in the home Network can directly communicate information in an IP routing manner;
when the visited network and the home network do not use the uniformly planned broadcast/multicast IP address, and the network bearer information is a first IP address of the visited network where the user is currently roaming, the application server originating the network bearer, e.g. a participating server providing the broadcast/multicast media stream, sends the broadcast/multicast media stream to the first IP address, but is now limited to IP routing within the home network, then, a network element (e.g. an MBMS network element in a visited network) receiving the broadcast/multicast media stream with the first IP address translates the first IP address into a second IP address used by the user in the network bearer, and sending the broadcast/multicast media stream to the second IP address (i.e. the user in the visited network) through the network bearer resource corresponding to the second IP address;
as an implementation manner, the broadcast/multicast method according to the embodiment of the present invention may further include a process that sends broadcast/multicast service information using a set forwarding device:
when a content forwarding entity is arranged between the visited network and the home network (the content forwarding entity or part of the content forwarding entity belongs to the visited network/home network, or all the content forwarding entity belongs to the visited network/home network), the application server sends the broadcast/multicast media stream to the content forwarding entity, the content forwarding entity sends the received broadcast/multicast media stream to a broadcast/multicast bearer network management entity (such as BM-SC) in the visited network, and the broadcast/multicast bearer network management entity sends the broadcast/multicast service information to the user;
for another example, network elements such as BM-SC are already set in both the existing visited network and home network, the embodiment of the present invention makes BM-SC complete the function of relaying broadcast/multicast media stream as a forwarding device by extending the interface of BM-SC, specifically, an application server initiating network bearer sends broadcast/multicast media stream to BM-SC in home network, and BM-SC in home network sends the broadcast/multicast media stream to BM-SC in visited network through the extended interface between BM-SC in visited network, and then BM-SC in visited network can send the broadcast/multicast media stream to the user in the visited network where roaming is located, when BM-SC in home network needs to verify user identity in roaming situation, this can be done by information interaction of the BM-SC in the visited network with the BM-SC in the home network.
As an implementation manner, the Broadcast/multicast method according to the embodiment of the present invention may further include a procedure that implements sending a Broadcast/multicast media stream in a Broadcast (BCAST) service architecture of an Open Mobile Alliance (OMA):
the function of the second layer in the OMA BCAST service architecture, such as user identity management, service network, adaptation of network bearer of broadcast/multicast media stream, and network bearer of roaming user using broadcast/multicast media stream, etc., an application Server (such as PoC Server) providing broadcast/multicast service in the home network may send broadcast/multicast media stream to the second layer in the OMA BCAST service architecture through an interface, and at the same time, may also perform user identity authentication and reservation of network bearer resources with the second layer in the OMA BCAST service architecture through an interface, and the second layer in the OMA BCAST service architecture may send the received broadcast/multicast media stream to the user.
Accordingly, the following describes a broadcast/multicast system according to an embodiment of the present invention, and also describes a user equipment and an application server according to an embodiment of the present invention.
Fig. 4 is a schematic diagram of a first embodiment of the broadcast/multicast system of the present invention, and referring to the diagram, the system mainly includes a Client41 in the visited network where the current user roams, a P-CSCF42, and an S-CSCF43, an Application Server (AS) 44, and an HSS45 in the home network of the user, wherein the functions of each unit/device are AS follows:
the Client41 sends a registration request message (one type of registration message) to the P-CSCF42, where the registration request message carries broadcast/multicast service information, and the broadcast/multicast service information carries network bearer information (such as a network identifier of a broadcast/multicast bearer network where the Client41 is located, broadcast/multicast bearer network management entity information, and the like) provided by the visited network and used for bearing a broadcast/multicast media stream, and may also carry a domain name of a home network of the Client41, access network information of a visited network where the Client41 is located, and support capability information of the Client41 for the broadcast/multicast service, where the network bearer information may be an IP address allocated by the visited network for the Client 41;
after receiving the registration request message sent by the Client41, the P-CSCF42 sends a registration request message to the S-CSCF43 of the home network, where the registration request message carries the broadcast/multicast service information sent by the Client 41;
the S-CSCF43 sends Cx-Put information supported by the HSS to the HSS45 to perform Client41 identity authentication in order to complete the registration process of the Client 41;
HSS45, for returning response message to the Cx-Put message, such as Cx-Put Resp message or Cx-Pull Resp message, to S-CSCF 43;
the S-CSCF43, which returns a response message, such as a 200OK response message, to the P-CSCF42 with respect to the registration request message sent by the P-CSCF 42;
and the P-CSCF42 returns a response message to the Client41 for the registration request message sent by the Client 41.
The S-CSCF43, configured to send the received broadcast/multicast service information to the AS44, where the broadcast/multicast service information may carry the network bearer information and information about support capability of the user terminal for the broadcast/multicast service;
a receiving unit in the AS44, receiving the broadcast/multicast service information;
the initiating unit in the AS44 initiates a network bearer between the visited network and the home network according to the network bearer information in the broadcast/multicast service information and the support capability information of the user terminal for the broadcast/multicast service, for example:
the judging unit in the initiating unit judges whether the current session meets the condition of the network bearing according to the network bearing information and the information of the supporting capability of the user terminal to the broadcast/multicast service;
a resource reservation initiating unit in the initiating unit initiates reservation of network bearing resources corresponding to the network bearing when the judging unit judges that the session meets the condition of the network bearing;
an acquiring unit in the AS44, acquiring a broadcast/multicast media stream provided by a home network;
and the sending unit in the AS44 sends the broadcast/multicast media stream to the Client41 through the network bearer initiated by the initiating unit.
Fig. 5 is a schematic diagram of a second embodiment of the broadcast/multicast system of the present invention, referring to the figure, the system mainly includes a Client51 in a visited network where a current user roams, an MBMS network 52, a participating application server 53 in a user home network, and a controlling application server 54, wherein the Client51 includes a generating unit 511 and a transmitting unit 512, the controlling application server 54 includes a receiving unit 541, an initiating unit 542, an acquiring unit 543, and a transmitting unit 544, and functions of each unit/device are as follows:
the MBMS52, configured to send network bearer information provided by the visited network for carrying the broadcast/multicast media stream to the Client51, where the network bearer information may be an IP address or the like allocated by the visited network to the Client 51;
a generating unit 511, configured to generate an INVITE message after receiving network bearer information sent by the MBMS network 52, where the INVITE message carries broadcast/multicast service information, and the broadcast/multicast service information carries network bearer information (e.g., a network identifier of a broadcast/multicast bearer network where the Client51 is located, broadcast/multicast bearer network management entity information, etc.) provided by the visited network and used for bearing a broadcast/multicast media stream, and may also carry a domain name of a home network of the Client51, access network information of a visited network where the Client51 is located, and support capability information of the Client51 for the broadcast/multicast service;
a sending unit 512, configured to send the session message INVITE message to the participating application server 53 in the user home network;
the participating application server 53, after receiving the INVITE message, sends the INVITE message to the control application server 54 in the user home network;
a receiving unit 541 that receives the INVITE message;
a determining unit in the initiating unit 542, after analyzing the broadcast/multicast service information carried in the INVITE message (the broadcast/multicast service information may carry the network bearer information and the support capability information of the user terminal for the broadcast/multicast service), determining whether the current session meets the condition of the network bearer according to the network bearer information in the broadcast/multicast service information and the support capability information of the user terminal for the broadcast/multicast service; in addition, the judging unit can also suggest or judge the availability of the network bearing resource corresponding to the network bearing information;
a resource reservation initiating unit in the initiating unit 543, configured to, when the determining unit determines that the current session meets the network loading condition, reserve a network loading resource corresponding to the network loading information for the current session, and specifically, may initiate reservation of the network loading resource to the participating application server 53 and the MBMS network 52, or trigger a broadcast/multicast loading network management entity in an home network (e.g., BM-SC in an MBMS network in the home network) to initiate reservation of the network loading resource;
an obtaining unit 543, obtaining a broadcast/multicast media stream provided by a home network, where the AS54 may obtain the locally provided broadcast/multicast media stream, or obtain the broadcast/multicast media stream from an external storage server;
the sending unit 544 sends the broadcast/multicast media stream obtained by the obtaining unit 543 to the Client51 through the network bearer initiated by the initiating unit 542.
In addition, the control application server 54 may also continue the above-mentioned session flow, for example, sending INVITE message to the called party and receiving response message thereof, and sending 200OK response message to the participating application server 53;
it should be noted that the participating application Server 53 is a participating function part of an application Server related to a user, such as PoCServer, and the controlling application Server 54 is a controlling function part of an application Server related to session control, such as PoC Server; control application server 54 may also be a separate network element that exists separately from the home network.
Fig. 6 is a schematic diagram of a third embodiment of the broadcast/multicast system of the present invention, referring to the figure, the system mainly includes a Client61 in a visited network where a current user roams, an MBMS network 62, a participating application server 63 in a user home network, and a controlling application server 64, where the Client61 includes a generating unit 611 and a transmitting unit 612, the participating application server 63 includes a receiving unit 631, an initiating unit 632, an acquiring unit 633, and a transmitting unit 634, and each unit/device function is as follows:
the MBMS network 62 sends, to the Client61, network bearer information provided by the visited network for carrying the broadcast/multicast media stream, where the network bearer information may be an IP address or the like allocated by the visited network for the user;
a generating unit 611, configured to generate a service setting request message (a type of service setting message), such as an SIP Publish message, after receiving the network bearer information sent by the MBMS network 62, where the service setting request message carries broadcast/multicast service information, and the broadcast/multicast service information carries network bearer information received by a user;
a sending unit 612, configured to send a service setting request message to a participating application server 63 in the user home network;
a receiving unit 631 in the participating application server 63, which receives the SIP Publish message carrying the network bearer information;
in addition, the participating application server 63 may also continue the above-mentioned service setting process, for example, returning a 200OK response message to the user;
the participating application server 63 may further include a saving unit, configured to save the parsed network bearer information for session establishment and usage related to the user, where the network bearer information may be updated or set with a valid condition (when the valid condition is not satisfied, the network bearer information is invalid);
a determining unit in the initiating unit 632 is configured to determine whether the current session meets the network loading condition according to the network loading information stored in the storing unit and the parsed information after the Client61 sends the session establishment request message INVITE to the participating application server 63, and parses the information of the supporting capability of the Client61 for the broadcast/multicast service, the confirmation information of the Client61 for determining whether to initiate the broadcast/multicast service and use the network loading of the broadcast/multicast service, and the like, which are carried in the session establishment request message INVITE;
in addition, the participating application server 53 may also continue the above-described session flow, for example, send an INVITE message to the control application server 54 and receive a response message thereof, and return a 200OK response message to the user in the visited network;
a resource reservation initiating unit in the initiating unit 632, configured to, when the determining unit determines that the current session meets a network bearer condition, reserve a network bearer resource corresponding to the network bearer for the current session, and specifically, may initiate reservation of the network bearer resource to the MBMS network 52 in the visited network, or trigger a broadcast/multicast bearer network management entity (e.g., BM-SC in the MBMS network in the home network) in the home network to initiate reservation of the network bearer resource;
an obtaining unit 633, configured to obtain a broadcast/multicast media stream provided by a home network, where the participating application server 63 may obtain the locally provided broadcast/multicast media stream, or obtain the broadcast/multicast media stream from an external storage server;
the sending unit 634, through the network bearer initiated by the initiating unit 632, sends the broadcast/multicast media stream obtained by the obtaining unit 633 to the Client 61.
The broadcast/multicast system according to the embodiment of the present invention shown in fig. 4, fig. 5 or fig. 6 may further have the following structure:
the functions of the sending unit in the application server (e.g. AS44, controlling application server 54 or participating application server 63) are:
when the visited network and the home network use a uniformly planned broadcast/multicast IP address, and the network bearer information is a first IP address of a visited network where a user equipment (e.g., Client41, Client51, or Client61) currently roams, the sending unit includes:
an IP address acquisition unit that acquires the first IP address;
a media stream sending unit, which directly sends the broadcast/multicast media stream to the first IP address (i.e. user equipment) according to the network bearer resource corresponding to the first IP address;
when the visited network and the home network do not use the uniformly planned broadcast/multicast IP address, when the network bearing information is the first IP address of the visited network where the user equipment is currently roaming, besides the above-mentioned IP address obtaining unit and media stream transmitting unit, the broadcast/multicast system may further comprise an address translator at a network element receiving said broadcast/multicast media stream at said first IP address, such as a network element of an MBMS network in a visited network, as shown in figure 7, the address translator translating the first IP address to a second IP address used by the user equipment in the network bearer, the network element receiving the broadcast/multicast service information by using the first IP address may send the broadcast/multicast media stream to the second IP address (i.e., the user equipment in the visited network) through the network bearer resource corresponding to the second IP address.
As an implementation manner, the broadcast/multicast system according to an embodiment of the present invention may further have the following structure, where the broadcast/multicast media stream is transmitted by using a configured forwarding device:
the broadcast/multicast system includes at least one forwarding device, in addition to the user equipment and the application server that sends the broadcast/multicast media stream to the user equipment through the network bearer provided by the access network where the user equipment is located, the forwarding device receives the broadcast/multicast media stream sent by the application server (such as a participating application server) and sends the broadcast/multicast media stream to the user equipment, and according to the setting and number of the forwarding device, the following specific conditions can be considered:
as shown in fig. 8, the broadcast/multicast system includes a content forwarding entity (i.e. the forwarding device, the content forwarding entity belongs to a visited network/home network, or belongs to a visited network/home network entirely), receives a broadcast/multicast media stream sent by an application server (e.g. a participating application server) initiating a broadcast/multicast bearer in the home network, and sends the received broadcast/multicast media stream to a broadcast/multicast bearer network management entity (e.g. BM-SC) in the visited network, and the broadcast/multicast bearer network management entity sends the broadcast/multicast media stream to a user; or,
as shown in fig. 9, the broadcast/multicast system includes a first forwarding device (e.g., BM-SC) disposed in a visited network and a second forwarding device (e.g., BM-SC) disposed in a home network, and completes a function of forwarding a broadcast/multicast media stream, an application server sends the broadcast/multicast media stream to a receiving unit of the second forwarding device in the home network, a sending unit of the second forwarding device sends the broadcast/multicast media stream to the receiving unit of the first forwarding device through an interface with the first forwarding device, and then the sending unit of the first forwarding device can send the broadcast/multicast media stream to a user equipment roaming in the visited network;
in addition, under the roaming condition, the first forwarding equipment and the second forwarding equipment can both comprise verification units, and when the identity of the user equipment needs to be verified, the user equipment can complete information interaction through the verification unit in the first forwarding equipment and the verification unit in the first forwarding equipment;
as an implementation manner, the broadcast/multicast system according to the embodiment of the present invention may further have the following structure, where the embodiment is implemented by using an OMA BCAST service architecture to send a broadcast/multicast media stream:
as shown in fig. 10, in addition to the application Server PoC Server which sends the broadcast/multicast media stream to the user equipment through the network bearer provided by the visited network where the user equipment is located, the broadcast/multicast system in the embodiment of the present invention is formed by using the functions of the second layer in the OMA BCAST service architecture, in specific implementation, the second layer in the OMA BCAST service architecture is connected with the user equipment and the PoC Server, respectively, the PoC Server may send the broadcast/multicast media stream to the second layer in the OMA BCAST service architecture through an interface, meanwhile, the user identity authentication and the reservation of network bearing resources can be carried out through the interface and the second layer in the OMABCAST business architecture, and the second layer in the OMABCAST business architecture can send the received broadcast/multicast media stream to the user equipment.
In addition, it can be understood by those skilled in the art that all or part of the processes in the methods of the embodiments described above can be implemented by hardware related to instructions of a program, where the program can be stored in a computer-readable storage medium, and when executed, the program can include the processes of the embodiments of the methods described above. The storage medium may be a magnetic disk, an optical disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), or the like.
While the foregoing is directed to embodiments of the present invention, it will be appreciated by those skilled in the art that various changes may be made in the embodiments without departing from the principles of the invention, and that such changes and modifications are intended to be included within the scope of the invention.
Claims (15)
1. A broadcast/multicast method, comprising:
and sending the broadcast/multicast media stream provided by the user home network to the user through the network bearer provided by the visited network where the user is located.
2. The broadcast/multicast method of claim 1, wherein the method further comprises:
receiving broadcast/multicast service information carrying the network bearing information;
and initiating the network bearer according to the broadcast/multicast service information.
3. The broadcast/multicast method according to claim 2, wherein the initiating the network bearer according to the broadcast/multicast service information specifically comprises:
judging whether the current conversation satisfies the condition of the network load according to the broadcast/multicast service information,
and if so, reserving network bearing resources corresponding to the network bearing for the session.
4. The broadcast/multicast method according to claim 3, wherein when the visited network and the home network use a uniformly planned broadcast/multicast IP address, and the network bearer information is an IP address of the visited network where the user is located, the sending of the broadcast/multicast media stream provided by the user home network to the user specifically includes: sending the broadcast/multicast media stream to the IP address, or,
when the visited network and the home network do not use the broadcast/multicast IP address that is planned in a unified manner, and the network bearer information is the first IP address of the visited network where the user is currently located, the sending of the broadcast/multicast media stream provided by the user home network to the user specifically includes: and sending the broadcast/multicast media stream to the first IP address according to the network bearing resource corresponding to the first IP address, converting the first IP address into a second IP address used by the user in the network bearing, and sending the broadcast/multicast media stream to the second IP address according to the network bearing resource corresponding to the second IP address.
5. The broadcast/multicast method according to any of claims 2 to 4, wherein the broadcast/multicast service information is carried in a user registration message, a session message or a service setup message.
6. The broadcast/multicast method according to claim 1, wherein the sending of the broadcast/multicast media stream provided by the user home network to the user through the network bearer provided by the visited network where the user is located is specifically:
and transmitting the broadcast/multicast media stream to the user through a content forwarding entity arranged between the visiting network and the home network.
7. The broadcast/multicast method according to claim 1, wherein the sending of the broadcast/multicast media stream provided by the user home network to the user through the network bearer provided by the visited network where the user is located is specifically:
and forwarding the broadcast/multicast media stream to the user through a first broadcast/multicast bearer network management entity arranged in the home network and a second broadcast/multicast bearer network management entity arranged in the visited network.
8. The broadcast/multicast method of claim 7, wherein the method further comprises:
and performing the identity authentication of the user between the first broadcast/multicast bearer network management entity and the second broadcast/multicast bearer network management entity.
9. A user device, comprising:
the generating unit generates a message carrying network bearing information which is provided by an access network where a user is located and used for bearing the broadcast/multicast media stream;
a transmitting unit that transmits the message.
10. The user equipment of claim 9, wherein the message is the user registration message, a session message, or a service setup message.
11. An application server, comprising:
the acquisition unit is used for acquiring the broadcast/multicast media stream provided by the user home network;
and the sending unit is used for sending the broadcast/multicast media stream to the user through a network bearer provided by the access network where the user is located.
12. The application server of claim 11, wherein the application server further comprises:
a receiving unit, configured to receive broadcast/multicast service information provided by the access network and carrying the network bearer information;
and the initiating unit initiates the network bearer according to the broadcast/multicast service information.
13. The application server of claim 12, wherein the initiating unit comprises:
a judging unit, which judges whether the current session meets the condition of the network load according to the broadcast/multicast service information;
and the resource reservation initiating unit initiates reservation of network bearing resources corresponding to the network bearing when the judging unit judges that the session meets the condition of the network bearing.
14. The application server according to claim 13, wherein the network bearer information is an IP address of a visited network where the user is located, and the sending unit includes:
an IP address obtaining unit which obtains the IP address;
and the media stream sending unit sends the broadcast/multicast media stream to the IP address according to the network bearing resource corresponding to the IP address.
15. An application server according to any of claims 11 to 14, wherein the application server is a walkie-talkie server.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810027607.3A CN101568068A (en) | 2008-04-22 | 2008-04-22 | Broadcasting/multicasting method and broadcasting/multicasting equipment |
| PCT/CN2009/071353 WO2009129728A1 (en) | 2008-04-22 | 2009-04-20 | Broadcast/multicast method, apparatus and system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810027607.3A CN101568068A (en) | 2008-04-22 | 2008-04-22 | Broadcasting/multicasting method and broadcasting/multicasting equipment |
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| CN101568068A true CN101568068A (en) | 2009-10-28 |
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| CN200810027607.3A Pending CN101568068A (en) | 2008-04-22 | 2008-04-22 | Broadcasting/multicasting method and broadcasting/multicasting equipment |
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| WO (1) | WO2009129728A1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107172010A (en) * | 2017-04-18 | 2017-09-15 | 国家新闻出版广电总局广播科学研究院 | Fusion net multimedia system based on eMBMS |
| CN109391909A (en) * | 2017-08-14 | 2019-02-26 | 华为技术有限公司 | A kind of method of multicasting and device |
| US11259149B2 (en) | 2017-08-14 | 2022-02-22 | Huawei Technologies Co., Ltd. | Multicast method and apparatus |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100563372C (en) * | 2005-08-31 | 2009-11-25 | 华为技术有限公司 | A kind of method and communication system that multicast service is provided to the roamer |
| CN101163332B (en) * | 2006-10-13 | 2010-11-10 | 中兴通讯股份有限公司 | Method for mobile communication system roaming user to access to multicast service |
-
2008
- 2008-04-22 CN CN200810027607.3A patent/CN101568068A/en active Pending
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2009
- 2009-04-20 WO PCT/CN2009/071353 patent/WO2009129728A1/en active Application Filing
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107172010A (en) * | 2017-04-18 | 2017-09-15 | 国家新闻出版广电总局广播科学研究院 | Fusion net multimedia system based on eMBMS |
| CN109391909A (en) * | 2017-08-14 | 2019-02-26 | 华为技术有限公司 | A kind of method of multicasting and device |
| CN109391909B (en) * | 2017-08-14 | 2021-05-14 | 华为技术有限公司 | Multicast method and device |
| US11259149B2 (en) | 2017-08-14 | 2022-02-22 | Huawei Technologies Co., Ltd. | Multicast method and apparatus |
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| Publication number | Publication date |
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| WO2009129728A1 (en) | 2009-10-29 |
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