CN101141688A - Channel multicast address generating method and transmitting method - Google Patents
Channel multicast address generating method and transmitting method Download PDFInfo
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Abstract
The present invention provides a generating method and a transmitting method for channel multicast addresses, wherein, the generating method for the channel multicast addresses comprises the following steps: step one, when a request message about service, a multimedia multicast broadcasting service gateway assigns the channel multicast addresses for the service according to a scheduled policy; step two, the multimedia multicast broadcasting service gateway sends the channel multicast addresses to a relevant base station, to establish a multicast route between the multimedia multicast broadcasting service gateway and the relevant base station, wherein, the multimedia multicast broadcasting service gateway comprises a signaling surface and a user surface. The user can quickly access the service data and switch the service class by adopting the present invention, the waste of the network resource is little, the maintenance is simple, the addition of a new service is convenient, and the transmission of multi-address can be finished by one message.
Description
Technical field
The present invention relates to the communications field, more specifically, relate to a kind of channel multicast address generating method and transmission method, be used at mobile communications network (Long term Evolution/SystemArchitecture Evolution, LTE/SAE) under the framework, (Multimedia Broadcast/Multicast Service in the time of MBMS), produces the multicast path that channel multicast address and transmission channels multicast address are set up group broadcasting broadcast business data to insert the multimedia multicast broadcasting service.
Background technology
In order to effectively utilize mobile network resource, existing mobile communication system has proposed to use the thought of multicast/broadcast transport service, i.e. MBMS.MBMS provides the point-to-multipoint service of a data source to a plurality of users send data in the mobile network, realize that Internet resources are shared, raising utilization rate of network resource, the interface resource of especially eating dishes without rice or wine.
IP-based mechanism and the method for setting up multicast and broadcasting service and transmission system that world standardization has been organized ietf definition.If basic ideas are meant the user and want to receive the multicast IP data message, need before the message distribution, add multicast group, multicast group is tree, is made up of a series of routers, and the top is multicast source, also is data source, and the bottom is each user.Multicast source is dealt into next stage with data, and all add the data gateway or the router of multicast group, and router continues data to be forwarded to the gateway or the router of next stage again, up to the user class of lowermost end.
The method that the user adds multicast group is to use multicast address to finish by the JOIN process.The basic ideas of JOIN process are: each multicast service (in a certain period a certain zone) all has a unique multicast address, this multicast address is distributed by multicast source, the user is that parameter is passed through IGMP (Internet igmpinternet with this address, IPv4) or MLD (multicast listener is found agreement, IPv6) two kinds of signaling applications add multicast group, and IGMP request sent to the router that the user links to each other, multicast router in the IP network sends to the router that links to each other with multicast source according to configuration information or routing iinformation with this user's JOIN request hop-by-hop, and the interface that will link to each other with the previous dive router joins in the multicast distribution tree, just the descending multicast distribution node of the multicast router of previous dive as oneself, afterwards, data source when distribution, have only the node of the multicast router of having set up corresponding multicast distribution tree just can receive and with the transmitting multicast data received to descending multicast router node.
The notion that a convergent point is arranged in the multicasting technology, the meaning are that data message all will be by this node in communication process.Thereby can finish controlled function such as statistics to data, charging at this node.Certain network element becomes convergent point if desired, can finish by configuration relevant parameter and routing algorithm.
The JOIN request is initiated by the user in the path of multicast pattern, dynamically sets up.And generally realize by static configuration in the path of broadcast mode, does not need the user to add multicast group before each distribution of services.But there is the problem of new business expansion in static configuration, and therefore for broadcasting service, the mode that can adopt multicast to set up carrying provides carrying for broadcasting service.
No matter be multicast pattern, or broadcast mode, before professional the transmission, all have a session to begin request message and be delivered to each node network element the multicast path, distribute relevant resource to notify each network element from service source.Session begins request message and comprises multicast address information, the contents such as time that session label information, business begin to send; Network element receives session and begins request message, can return a session and begin response message, and message is received in expression.
Session begins the message that message belongs to the signaling aspect, and the foundation of signaling paths static configuration is often finished.The business datum content belongs to the message of user level, and the foundation of data path can be the mode of building IP tunnel by signaling, also can be to finish by the IETF multicast protocol.
Session begins to have in the request message 2 addresses, and one is the multicast address of professional usefulness, is distributed by multicast source (being service source), and the sign Session ID that each MBMS business has a professional multicast address and service conversation is corresponding one by one; Another is a particular source, and the original idea of this address is the IP address that expression is sent to the particular source of multicast group, thereby has determined that multicast source is which service source (under a lot of situation of service source).By multicast source self source address and multicast address sent to its descending multicast node gateway (as MBMS GW), initiate multicast request to multicast source by the node gateway again, just can set up descending node gateway to the multicast channel between the multicast source node.
Session begins to have in the request message service area identification parameter, represents this session in which geographic area to play.The network element (being the ENodeB among Fig. 1) that service area identifies pairing concrete wireless coverage is configured planning by Virtual network operator.
In order to set up the MBMS service path faster, reduce the waste of resource simultaneously, standardization body has developed the network architecture based on the MBMS of the evolution of next generation network framework (EMBMS), and some basic implementations.The network architecture as shown in Figure 1.
BM-SC (Broadcast/Multicast Service Center) 102, i.e. multicast broadcast service center, as the distribution of the control of multicast broadcast service session, subscriber authorisation, safe key, and the data source point of EMBMS business.BM-SC is connected with content service provider/multicast broadcast source (Content Provider/Multicast Broadcast Source), finishes gathering of data.
MBMS GW:MBMS gateway (Gateway, GW) 104, be divided into two parts in logic, one is the signaling plane processing section, handle signalings such as conversation message by the Gmb interface shown in the figure from BM-SC, also can with the signaling of MCE connection processing data sync aspect; Another is user's face processing section of data, receives from the data of BM-SC and is transmitted to the descending router of multicast group.
MCE (Multi-Cell/Multicast Coordination Entity) 106, as wireless side chain of command functional entity, be responsible for the chain of command signaling process, the data sync function of MBSFN (MBMS SingleFrequency Network) and Radio Resource coordination etc.
ENodeB (Evolved NodeB) 108, the wireless access network of evolution is follow-on wireless access network, and higher up-downgoing speed can be provided, lower transmission delay and reliable more wireless transmission.
Basic ideas based on EMBMS business realizing mechanism are: the conversation message by the signaling aspect provides the needed information of user level of setting up (as multicast address etc.), and the foundation of the passage of user level need realize by the IP multicast protocol.Yet, fail at present to solve and set up the needed multicast address of user level passage and how can also lessly fast pass to access network base stations ENodeB lavishly.
Summary of the invention
In order to solve the problems of the prior art, the present invention proposes a kind of channel multicast address generating method and transmission method, by the present invention, in the time of can under the next generation network framework, inserting multimedia multicast broadcasting service MBMS, will set up the needed multicast address of user level passage and pass to access network base stations ENodeB.
The invention provides a kind of channel multicast address generating method, when being used under the mobile communications network framework, inserting the multimedia multicast broadcasting service, produce the channel multicast address and set up the multicast broadcast service transmission path, may further comprise the steps: step 1, when receiving about service request message, the multimedia multicast broadcasting service gateway is traffic assignments channel multicast address according to predetermined policy; And step 2, the multimedia multicast broadcasting service gateway sends to relevant base station with the channel multicast address, thereby set up multicast path between multimedia multicast broadcasting service gateway and relevant base station, wherein, the multimedia multicast broadcasting service gateway comprises signaling plane and user's face.
Wherein, comprise at least about service request message: the request message that address request, multimedia multicast broadcasting service message, session begin request message or send from the signaling user oriented face of multimedia multicast broadcasting service gateway.
Predetermined policy is the foundation that is used to distribute the channel multicast address by the signaling plane appointment, comprises at least: identical service area uses same channel multicast address; Identical type of service is used same channel multicast address; And all types of service are all used same multicast address.
When the signaling plane of multimedia multicast broadcasting service gateway is in different network entities with user plane functions, handle below in step 1, carrying out: distribute the channel multicast address by user's face.Handle below in step 2, carrying out: the channel multicast address is sent to relevant base station by signaling plane.
Particularly, comprise in step 1: when receiving about service request message, the multimedia multicast broadcasting service gateway has judged whether to traffic assignments the channel multicast address; If do not distribute the channel multicast address, then the multimedia multicast broadcasting service gateway is distributed the channel multicast address, and the channel multicast address is added to about in the service request message; If or distributed the channel multicast address, then the multimedia multicast broadcasting service gateway need not to distribute the channel multicast address, directly the channel multicast address is filled up to about in the service request message.
The present invention also provides a kind of channel multicast address transmission method, when being used under the mobile communications network framework, inserting the multimedia multicast broadcasting service, the channel multicast address that is produced is begun the multicast broadcast service related network elements that message is delivered to wireless network side by session, may further comprise the steps: step 1, when receiving session when beginning request message, the multimedia multicast broadcasting service gateway begins to add in the request message channel multicast address in session; And step 2, the multimedia multicast broadcasting service gateway is according to predetermined policy, and the session that will comprise the channel multicast address begins the multicast broadcast service related network elements that request message is forwarded to wireless network side.
In the present invention, the multimedia multicast broadcasting service gateway comprises signaling plane and user's face.
In step 1, carry out following processing:, determine to begin whether to have distributed in the request message channel multicast address in session when user's face receives session when beginning request message; If also do not distribute the channel multicast address, then user's face distributes the channel multicast address, and begins to fill in the request message upper channel multicast address in session; And if distributed the channel multicast address, then user's face directly begins to fill in the request message channel multicast address in session.
Alternatively, carry out following processing in step 1: when signaling plane receives session when beginning request message, signaling plane begins request message with session and is transmitted to user's face, and user's face determines to begin whether to have distributed in the request message channel multicast address in session; If also do not distribute the channel multicast address, then user's face distributes the channel multicast address, and begins to fill in the request message upper channel multicast address in session; And if distributed the channel multicast address, then user's face directly begins to fill in the request message channel multicast address in session.
Wherein, session begins request message and comprises at least: professional multicast address, session identification and service area sign, and the session that comprises the channel multicast address begins request message and comprises at least: channel multicast address, professional multicast address, session identification and service area sign.
Predetermined policy is the foundation that is used to distribute the channel multicast address by the signaling plane appointment, comprises at least: identical service area uses same channel multicast address; Identical type of service is used same channel multicast address; And all types of service are all used same multicast address.
Carry out following processing in step 2: the session that the multimedia multicast broadcasting service gateway will comprise the channel multicast address begins request message and is forwarded to wireless side chain of command functional entity.Then, wireless side chain of command functional entity returns session to the multimedia multicast broadcasting service gateway and begins response message.
Further, also carry out following processing in step 2: the session that wireless side chain of command functional entity will comprise the channel multicast address begins request message and sends to relevant base station.Then, relevant base station is returned session to wireless side chain of command functional entity and is begun response message.
It is further comprising the steps of according to channel multicast of the present invention address transmission method: when mind-set multimedia multicast broadcast gateway in the multimedia multicast broadcasting service sends group broadcasting broadcast business data, the multimedia multicast broadcast gateway is used channel multicast address encapsulation group broadcasting broadcast business data, and the group broadcasting broadcast business data after will encapsulating sends to relevant base station; And during the group broadcasting broadcast business data after relevant base station receives encapsulation, remove the group broadcasting broadcast business data after the encapsulation, and obtain professional multicast address, search corresponding session id, thereby group broadcasting broadcast business data is sent to terminal.
Wherein, relevant base station has identical service area sign and links to each other with wireless side chain of command functional entity, is responsible for carrying out data sync by wireless side chain of command functional entity.
Thereby, adopt the present invention can make quick access service data of user and service switchover classification, and network resources waste is seldom, in addition, the present invention safeguards simply, is convenient to the interpolation of new business, can finish the transmission of a plurality of addresses by a message.
Other features and advantages of the present invention will be set forth in the following description, and, partly from specification, become apparent, perhaps understand by implementing the present invention.Purpose of the present invention and other advantages can realize and obtain by specifically noted structure in the specification of being write, claims and accompanying drawing.
Description of drawings
Accompanying drawing is used to provide further understanding of the present invention, and constitutes the part of specification, is used from explanation the present invention with embodiments of the invention one, is not construed as limiting the invention.In the accompanying drawings:
Fig. 1 is the schematic diagram of the EMBMS network architecture;
Fig. 2 is the flow chart according to channel multicast address generating method of the present invention;
Fig. 3 is the flow chart according to channel multicast of the present invention address transmission method;
Fig. 4 be according to the first embodiment of the present invention based on the schematic diagram that obtains the channel multicast address approach under the EMBMS network architecture;
Fig. 5 be according to a second embodiment of the present invention based on the schematic diagram that obtains the channel multicast address approach under the EMBMS network architecture; And
Fig. 6 be a third embodiment in accordance with the invention based on the schematic diagram that obtains the channel multicast address approach under the EMBMS network architecture.
Embodiment
Below in conjunction with accompanying drawing the preferred embodiments of the present invention are described, should be appreciated that preferred embodiment described herein only is used for description and interpretation the present invention, and be not used in qualification the present invention.
In the present invention, the bang path that session begins message has been set up in advance and has been finished, and message itself can be carried two multicast address.MBMS GW is that session begins the gateway that message must approach, MCE can transparent transmission message arrive relevant ENodeB, also can control to arrive which ENodeB, and ENodeB to be session begin the last network element that arrives of message.
Fig. 2 is the flow chart according to channel multicast address generating method of the present invention.As shown in Figure 2, this method may further comprise the steps:
Step S202, when receiving about service request message, the multimedia multicast broadcasting service gateway is traffic assignments channel multicast address according to predetermined policy; And
Step S204, the multimedia multicast broadcasting service gateway sends to relevant base station with the channel multicast address, thereby set up multicast path between multimedia multicast broadcasting service gateway and relevant base station, wherein, the multimedia multicast broadcasting service gateway comprises signaling plane and user's face.
Wherein, comprise at least about service request message: the request message that address request, multimedia multicast broadcasting service message, session begin request message or send from the signaling user oriented face of multimedia multicast broadcasting service gateway.
Predetermined policy is the foundation that is used to distribute the channel multicast address by the signaling plane appointment, comprises at least: identical service area uses same channel multicast address; Identical type of service is used same channel multicast address; And all types of service are all used same multicast address.
When the signaling plane of multimedia multicast broadcasting service gateway is in different network entities with user plane functions, handle below in step S202, carrying out: distribute the channel multicast address by user's face.Handle below in step S204, carrying out: the channel multicast address is sent to relevant base station by signaling plane.
Particularly, comprise in step S202: when receiving about service request message, the multimedia multicast broadcasting service gateway has judged whether to traffic assignments the channel multicast address; If do not distribute the channel multicast address, then the multimedia multicast broadcasting service gateway is distributed the channel multicast address, and the channel multicast address is added to about in the service request message; If or distributed the channel multicast address, then the multimedia multicast broadcasting service gateway need not to distribute the channel multicast address, directly the channel multicast address is filled up to about in the service request message.
Fig. 3 is the flow chart according to channel multicast of the present invention address transmission method.As shown in Figure 3, this method may further comprise the steps:
Step S302, when receiving session when beginning request message, the multimedia multicast broadcasting service gateway begins to add in the request message channel multicast address in session; And
Step S304, the multimedia multicast broadcasting service gateway is according to predetermined policy, and the session that will comprise the channel multicast address begins the multicast broadcast service related network elements that request message is forwarded to wireless network side.
In the present invention, the multimedia multicast broadcasting service gateway comprises signaling plane and user's face.
In step S302, carry out following processing:, determine to begin whether to have distributed in the request message channel multicast address in session when user's face receives session when beginning request message; If also do not distribute the channel multicast address, then user's face distributes the channel multicast address, and begins to fill in the request message upper channel multicast address in session; And if distributed the channel multicast address, then user's face directly begins to fill in the request message channel multicast address in session.
Alternatively, in step S302, carry out following processing: when signaling plane receives session when beginning request message, signaling plane begins request message with session and is transmitted to user's face, and user's face determines to begin whether to have distributed in the request message channel multicast address in session; If also do not distribute the channel multicast address, then user's face distributes the channel multicast address, and begins to fill in the request message upper channel multicast address in session; And if distributed the channel multicast address, then user's face directly begins to fill in the request message channel multicast address in session.
Wherein, session begins request message and comprises at least: professional multicast address, session identification and service area sign, and the session that comprises the channel multicast address begins request message and comprises at least: channel multicast address, professional multicast address, session identification and service area sign.
Predetermined policy is the foundation that is used to distribute the channel multicast address by the signaling plane appointment, comprises at least: identical service area uses same channel multicast address; Identical type of service is used same channel multicast address; And all types of service are all used same multicast address.
Carry out following processing in step S304: the session that the multimedia multicast broadcasting service gateway will comprise the channel multicast address begins request message and is forwarded to wireless side chain of command functional entity.Then, wireless side chain of command functional entity returns session to the multimedia multicast broadcasting service gateway and begins response message.
Further, also carry out following processing in step S304: the session that wireless side chain of command functional entity will comprise the channel multicast address begins request message and sends to relevant base station.Then, relevant base station is returned session to wireless side chain of command functional entity and is begun response message.
It is further comprising the steps of according to channel multicast of the present invention address transmission method: when mind-set multimedia multicast broadcast gateway in the multimedia multicast broadcasting service sends group broadcasting broadcast business data, the multimedia multicast broadcast gateway is used channel multicast address encapsulation group broadcasting broadcast business data, and the group broadcasting broadcast business data after will encapsulating sends to relevant base station; And during the group broadcasting broadcast business data after relevant base station receives encapsulation, remove the group broadcasting broadcast business data after the encapsulation, and obtain professional multicast address, search corresponding session id, thereby group broadcasting broadcast business data is sent to terminal.
Wherein, relevant base station has identical service area sign and links to each other with wireless side chain of command functional entity, is responsible for carrying out data sync by wireless side chain of command functional entity.
Fig. 4 be according to the first embodiment of the present invention based on the schematic diagram that obtains the channel multicast address approach under the EMBMS network architecture.In the embodiment shown in fig. 4, under the EMBMS system architecture, MBMS GW is divided into chain of command functional entity (MBMS CP) and user plane functions entity (MBMS UP) two parts are formed, MBMS CP receives session when beginning request message, be forwarded to MBMS UP, distribute or the dedicated tunnel multicast address by MBMS UP, and pass to MBMS CP, begin message by MBMS CP by session the channel multicast address is passed to wireless side chain of command functional entity MCE and ENODEB, MCE can transparent transmission message arrive relevant ENodeB, also can control and arrive which ENodeB, ENodeB is that session begins the last network element that arrives of message.Initiate the foundation of muticast data transmission passage according to this channel multicast address by ENODEB.Idiographic flow may further comprise the steps:
Step S402, MBMS CP receive session and begin request message, have carried professional multicast address in the request message at least, session label information, and information such as service area sign;
Step S404, MBMS CP begin request with session and are forwarded to corresponding M BMSUP;
Step S406, if also do not distribute the multicast channel address, MBMS UP distributes the channel multicast address, MBMS UP extends this as newly assigned channel multicast address in the channel multicast address parameter that session begins in the response message, if distributed the channel multicast address, then do not need to redistribute, as long as fill in;
Step S408, MBMS UP begin response with session and are sent to MBMS CP.Carry the channel multicast address parameter in the message;
Step S410, MBMS CP transmit session to MCE and begin message.Comprised passage and professional two class multicast address in the message, and session identification;
Step S412, MCE return session to MBMS CP and begin response message;
Step S414, MCE send session to relevant ENodeB and begin request message, have comprised passage and professional two class multicast address in the message, and session identification;
Step S416, ENodeB preserves address and the identification information in the session, and the record corresponding relation, returns session to MCE and begins response message; And
Step S418 if ENodeB does not also have the user's face multicast path between foundation and MBMS GW, then initiates the request of setting up according to the channel multicast address in the message.
Then, when BM-SC sends the MBMS business datum, data at first arrive MBMSUP, MBMS UP uses channel multicast address encapsulation of data message, makes data be sent to ENodeB, when ENodeB receives multicast message, remove to encapsulate channel multicast, obtain professional multicast address, search corresponding Session ID, thereby data are continued to send to terminal.
Fig. 5 be according to a second embodiment of the present invention based on the schematic diagram that obtains the channel multicast address approach under the EMBMS network architecture.In the embodiment shown in fig. 5, under the EMBMS system architecture, MBMS GW is divided into chain of command functional entity (MBMS CP) and user plane functions entity (MBMS UP) two parts are formed, MBMS CP receives session when beginning request message, the request message of transmission business or aspect, address is to MBMS UP, distribute or the dedicated tunnel multicast address by MBMS UP, and pass to MBMS CP in the response message aspect business or address, begin message by MBMS CP by session the channel multicast address is passed to wireless side chain of command functional entity MCE and ENODEB, MCE can transparent transmission message arrive relevant ENodeB, also can control and arrive which ENodeB, ENodeB is that session begins the last network element that arrives of message.Initiate the foundation of muticast data transmission passage according to this channel multicast address by ENODEB.Idiographic flow may further comprise the steps:
Step S502, MBMS CP receive session and begin request message, have carried professional multicast address in the request message at least, session label information, and information such as service area sign;
Step S504, MBMS CP send the request message of business or aspect, address to corresponding M BMS UP;
Step S506, if also do not distribute the multicast channel address, MBMS UP distributes the channel multicast address, MBMS UP extends this as newly assigned channel multicast address in the channel multicast address parameter of the response message aspect business or the address, if distributed the channel multicast address, then do not need to redistribute, as long as fill in;
Step S508, MBMS UP send the response message of business or aspect, address to MBMS CP.Carry the channel multicast address parameter in the message;
Step S510, MBMS CP transmit session to MCE and begin message.Comprised passage and professional two class multicast address in the message, and session identification;
Step S512, MCE return session to MBMS CP and begin response message;
Step S514, MCE send session to relevant ENodeB and begin request message, have comprised passage and professional two class multicast address in the message, and session identification;
Step S516, ENodeB preserves address and the identification information in the session, and the record corresponding relation, returns session to MCE and begins response message; And
Step S518 if ENodeB does not also have the user's face multicast path between foundation and MBMS GW, then initiates the request of setting up according to the channel multicast address in the message.
Then, when BM-SC sends the MBMS business datum, data at first arrive MBMSUP, MBMS UP uses channel multicast address encapsulation of data message, makes data be sent to ENodeB, when ENodeB receives multicast message, remove to encapsulate channel multicast, obtain professional multicast address, search corresponding Session ID, thereby data are continued to send to terminal.
Fig. 6 be a third embodiment in accordance with the invention based on the schematic diagram that obtains the channel multicast address approach under the EMBMS network architecture.In the embodiment shown in fig. 6, under the EMBMS system architecture, MBMS GW is divided into chain of command functional entity (MBMS CP) and user plane functions entity (MBMS UP) two parts are formed, MBMS UP receives session when beginning request message, distribute or the dedicated tunnel multicast address, and session is begun request message be forwarded to MBMS CP, carry simultaneously that MBMS UP distributes or the channel multicast address of appointment.Begin message by MBMS CP by session the channel multicast address is passed to wireless side chain of command functional entity MCE and ENODEB, MCE can transparent transmission message arrive relevant ENodeB, also can control and arrive which ENodeB, ENodeB is that session begins the last network element that arrives of message.Initiate the foundation of muticast data transmission passage according to this channel multicast address by ENODEB.Idiographic flow may further comprise the steps:
Step S602, MBMS UP receive session and begin request message, have carried professional multicast address in the request message at least, session label information, and information such as service area sign;
Step S604, if also do not distribute the multicast channel address, MBMS UP distributes the channel multicast address, MBMS UP extends this as newly assigned channel multicast address with the channel multicast address parameter that session begins request message, if distributed the channel multicast address, then do not need to redistribute, as long as fill in;
Step S606, MBMS UP send session to corresponding M BMS CP and begin request message, carry the channel multicast address parameter of MBMS UP distribution or appointment in the message;
Step S608, MBMS CP send session to MBMS UP and begin response;
Step S610, MBMS CP transmit session to MCE and begin message.Comprised passage and professional two class multicast address in the message, and session identification;
Step S612, MCE return session to MBMS CP and begin response message;
Step S614, MCE send session to relevant ENodeB and begin request message, have comprised passage and professional two class multicast address in the message, and session identification;
Step S616, ENodeB preserves address and the identification information in the session, and the record corresponding relation, returns session to MCE and begins response message; And
Step S618 if ENodeB does not also have the user's face multicast path between foundation and MBMS GW, then initiates the request of setting up according to the channel multicast address in the message.
Then, when BM-SC sends the MBMS business datum, data at first arrive MBMSUP, MBMS UP uses channel multicast address encapsulation of data message, makes data be sent to ENodeB, when ENodeB receives multicast message, remove to encapsulate channel multicast, obtain professional multicast address, search corresponding Session ID, thereby data are continued to send to terminal.
In sum, adopt method of the present invention, can make quick access service data of user and service switchover classification, and network resources waste seldom, and in addition, the present invention safeguards simply, be convenient to the interpolation of new business, can finish the transmission of a plurality of addresses by a message.
Be the preferred embodiments of the present invention only below, be not limited to the present invention, for a person skilled in the art, the present invention can have various changes and variation.Within the spirit and principles in the present invention all, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (20)
1. a channel multicast address generating method when being used for inserting the multimedia multicast broadcasting service under the mobile communications network framework, producing the channel multicast address and sets up the multicast broadcast service transmission path, it is characterized in that, said method comprising the steps of:
Step 1, when receiving about service request message, the multimedia multicast broadcasting service gateway is described traffic assignments channel multicast address according to predetermined policy; And
Step 2, described multimedia multicast broadcasting service gateway sends to relevant base station with described channel multicast address, thereby sets up multicast path between multimedia multicast broadcasting service gateway and described relevant base station.
2. method according to claim 1 is characterized in that, described multimedia multicast broadcasting service gateway comprises signaling plane and user's face.
3. method according to claim 1, it is characterized in that, describedly comprise at least: the request message that address request, multimedia multicast broadcasting service message, session begin request message or send to described user's face from the described signaling plane of described multimedia multicast broadcasting service gateway about service request message.
4. method according to claim 1 is characterized in that, described predetermined policy is the foundation that is used to distribute described channel multicast address by described signaling plane appointment, comprises at least:
Identical service area uses same channel multicast address;
Identical type of service is used same channel multicast address; And
All types of service are all used same multicast address.
5. according to each described method in the claim 1 to 4, it is characterized in that, when the signaling plane and the user plane functions of described multimedia multicast broadcasting service gateway are in different network entities, handle below in described step 1, carrying out:
Distribute described channel multicast address by described user's face.
6. method according to claim 5 is characterized in that, handles below carrying out in described step 2:
By described signaling plane described channel multicast address is sent to described relevant base station.
7. method according to claim 1 is characterized in that, comprises in described step 1:
Described during about service request message when receiving, described multimedia multicast broadcasting service gateway has judged whether to described traffic assignments described channel multicast address;
If do not distribute described channel multicast address, then described multimedia multicast broadcasting service gateway is distributed described channel multicast address, and described channel multicast address is added to described about in the service request message; Or
If distributed described channel multicast address, then described multimedia multicast broadcasting service gateway need not to distribute the channel multicast address, directly described channel multicast address is filled up to described about in the service request message.
8. channel multicast address transmission method, when being used under the mobile communications network framework, inserting the multimedia multicast broadcasting service, the channel multicast address that is produced is begun the multicast broadcast service related network elements that message is delivered to wireless network side by session, it is characterized in that, may further comprise the steps:
Step 1, when receiving described session when beginning request message, the multimedia multicast broadcasting service gateway begins to add in the request message described channel multicast address in described session; And
Step 2, described multimedia multicast broadcasting service gateway are according to predetermined policy, and the session that will comprise described channel multicast address begins the multicast broadcast service related network elements that request message is forwarded to described wireless network side.
9. method according to claim 8 is characterized in that, described multimedia multicast broadcasting service gateway comprises signaling plane and user's face.
10. method according to claim 9 is characterized in that, handles below carrying out in described step 1:
When described user's face receives described session when beginning request message, determine to begin whether to have distributed in the request message described channel multicast address in described session;
If also do not distribute described channel multicast address, then described user's face distributes described channel multicast address, and begins to fill in the request message the above channel multicast address in described session; And
If distributed described channel multicast address, then described user's face directly begins to fill in the request message described channel multicast address in described session.
11. method according to claim 9 is characterized in that, handles below carrying out in described step 1:
When described signaling plane receives described session when beginning request message, described signaling plane begins request message with described session and is transmitted to described user's face, and described user's face determines to begin whether to have distributed in the request message described channel multicast address in described session;
If also do not distribute described channel multicast address, then described user's face distributes described channel multicast address, and begins to fill in the request message the above channel multicast address in described session; And
If distributed described channel multicast address, then described user's face directly begins to fill in the request message described channel multicast address in described session.
12. method according to claim 7 is characterized in that, described session begins request message and comprises at least: professional multicast address, session identification and service area sign, and
The described session that comprises described channel multicast address begins request message and comprises at least: channel multicast address, professional multicast address, session identification and service area sign.
13. method according to claim 7 is characterized in that, described predetermined policy is the foundation that is used to distribute described channel multicast address by described signaling plane appointment, comprises at least:
Identical service area uses same channel multicast address;
Identical type of service is used same channel multicast address; And
All types of service are all used same multicast address.
14. method according to claim 7 is characterized in that, handles below carrying out in described step 2:
The session that described multimedia multicast broadcasting service gateway will comprise described channel multicast address begins request message and is forwarded to wireless side chain of command functional entity.
15. method according to claim 14 is characterized in that, also comprises:
Described wireless side chain of command functional entity returns session to described multimedia multicast broadcasting service gateway and begins response message.
16. method according to claim 14 is characterized in that, handles below also carrying out in described step 2:
The session that described wireless side chain of command functional entity will comprise described channel multicast address begins request message and sends to described relevant base station.
17. method according to claim 16 is characterized in that, also comprises:
Described relevant base station is returned session to described wireless side chain of command functional entity and is begun response message.
18. according to each described method in the aforementioned claim, it is characterized in that, also comprise:
When the described multimedia multicast broadcast gateway of mind-set in the multimedia multicast broadcasting service sends group broadcasting broadcast business data, described multimedia multicast broadcast gateway uses described channel multicast address to encapsulate described group broadcasting broadcast business data, and the group broadcasting broadcast business data after will encapsulating sends to described relevant base station; And
During group broadcasting broadcast business data after described relevant base station receives described encapsulation, remove to encapsulate the group broadcasting broadcast business data after the described encapsulation, and obtain described professional multicast address, search corresponding session id, thereby described group broadcasting broadcast business data is sent to terminal.
19. method according to claim 16 is characterized in that, described relevant base station has identical service area sign and links to each other with described wireless side chain of command functional entity.
20. method according to claim 16 is characterized in that, data sync is responsible for carrying out by described wireless side chain of command functional entity in described relevant base station.
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| CNA2007101525897A CN101141688A (en) | 2007-10-12 | 2007-10-12 | Channel multicast address generating method and transmitting method |
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| Application Number | Priority Date | Filing Date | Title |
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| CNA2007101525897A CN101141688A (en) | 2007-10-12 | 2007-10-12 | Channel multicast address generating method and transmitting method |
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| CN101141688A true CN101141688A (en) | 2008-03-12 |
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| CNA2007101525897A Pending CN101141688A (en) | 2007-10-12 | 2007-10-12 | Channel multicast address generating method and transmitting method |
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