CN101132392B - Single-carrier frequency broadcast system and method for implementing its business transmission - Google Patents
Single-carrier frequency broadcast system and method for implementing its business transmission Download PDFInfo
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Abstract
The invention discloses an independent carrier frequency broadcast system, wherein an independent carrier-frequency broadcast network and a mobile communication network are connected by gateway, when a stream media service is transmitted, the BM-SC in the independent carrier-frequency broadcast network utilizes the mobile communication network to distribute the stream media service to BNB node in the independent carrier-frequency broadcast network by the gateway, the BNB node processes the stream media service and sends it to the UE. In the independent carrier-frequency broadcast system, the independent carrier-frequency broadcast network is connected with the existed mobile communication network through the gateway, therefore, the independent carrier-frequency broadcast network can utilize the network resource of the existed mobile communication network to transmit the stream media service data. As a result, the cost of establishing network can be reduced on the basis of insuring the utilization rate of the frequency spectrum. The invention also discloses a method for transmitting service of the independent carrier-frequency broadcast system, therefore the independent carrier-frequency broadcast stream media service can be achieved on the basis of insuring the utilization rate of the frequency spectrum.
Description
Technical field
The present invention relates to the multicast/broadcast technology, refer to a kind of single-carrier frequency broadcast system especially and realize the professional method that transmits.
Background technology
Multicast and broadcasting are a kind of technology that transmits data from a data source to a plurality of targets.In traditional mobile communications network, sub-district multicast service or broadcasting service (CBS, Cell Broadcast Service) allow low bit rate data to share broadcast channel to all users' transmissions by the sub-district, and this kind business belongs to information series business.
Now, people no longer are satisfied with phone and messaging service to the demand of mobile communication, and along with the fast development of internet (Internet), a large amount of mobile multi-media services emerge.The some of them mobile multi-media service requires a plurality of users can receive identical data, for example video request program, television broadcasting, video conference, online education, interactive game etc. simultaneously.These mobile multi-media services are compared with general data service, have characteristics such as data volume is big, longer duration, delay sensitive.Internet protocol (IP) multicast and broadcast technology only are applicable to wired IP communication network, are not suitable for mobile communications network, because mobile communications network has particular network structure, functional entity and wave point, these are all different with the wire communication IP network.
In order to effectively utilize the mobile communications network resource, 3G (Third Generation) Moblie global standards tissue (3GPP) has proposed the multi-medium broadcast/group broadcast service (MBMS) of mobile communications network, thereby in mobile communications network, provide a data source to send the point-to-multipoint service of data to a plurality of users, the realization Internet resources are shared, improve utilization rate of network resource, the interface resource of especially eating dishes without rice or wine.The MBMS that 3GPP proposes can not only realize the classes of messages multicast and the broadcasting of plain text low rate, and can also realize the multicast and the broadcasting of high-speed multimedia business, and this has complied with the trend of following mobile data development undoubtedly.
In order in existing mobile communications network, to support the MBMS business, in 3-G (Generation Three mobile communication system), increased the mobile network functional entity--broadcast/multicast service center (BM-SC), described BM-SC is content provider's a inlet, be used for authorizing and initiating the MBMS business, and plan transmits the MBMS content to schedule at mobile network.In addition, UE in existing wireless communications network, universal mobile telecommunications system (UMTS) land radio access web (UTRAN), global system for mobile communications strengthen wireless access network (GERAN), Serving GPRS Support Node (SGSN, Serving GPRS Support Node), increased the function relevant on the critical point GPRS Support Node functional entitys such as (GGSN, Gateway GPRS SupportNode) with MBMS.Support the wireless network architecture schematic diagram of broadcasting/packet service to stipulate, repeat no more here referring to related protocol.
In the mobile communications network of supporting the MBMS business, MBMS comprises multicast pattern and broadcast mode, and wherein multicast pattern needs user's corresponding multicast group of contracting, and carries out activation of service, and produces corresponding charge information.Because it is different that multicast pattern and broadcast mode exist on business demand, cause also difference of operation flow separately, idiographic flow can be stipulated referring to related protocol, repeat no more here.
But, in the mobile communications network of supporting the MBMS business, professional and other the professional common pilot of MBMS, caused the availability of frequency spectrum of MBMS lower, particularly to the streaming media service of similar television services class, the data of assessment are at present: in Wideband Code Division Multiple Access (WCDMA) (WCDMA) system of current 5MHz bandwidth, TV programme for 128Kbps, support the mobile communications network of MBMS business only can transmit 4 the tunnel, make operator can only provide seldom TV programme a frequency range, this is very uneconomic to operator.
For the streaming media service of similar television services class is provided better, at present, usually adopt independent descending frequency node (BNB, B Node B) comes the MBMS transmission business, it is simple that the BNB node has a protocol architecture, the characteristics that cost is low, and adopt OFDM (OFDM) technology of the Long Term Evolution (LTE) of current Access Network to improve the availability of frequency spectrum, the BNB node is to obtain after the evolution base station among the LTE (E-NodeB) is simplified, basic broadcast/group broadcast function with E-NodeB realizes the function of some or all of S1 interface; The BNB node adopts the OFDM technology.
Fig. 1 is and has the single-carrier frequency broadcast schematic network structure that mobile communications network separates now that as shown in Figure 1, the networking plan of existing single-carrier frequency broadcast network is with the independent networking of BNB node, does not get in touch with existing mobile communications network.Single-carrier frequency broadcast network shown in Figure 1 mainly comprises BM-SC, distribution function (DF) entity and some BNB nodes, wherein, DF is used for the streaming media service from BM-SC is distributed to each BNB node, each BNB node carries out the Base-Band Processing of MAC/RLC and physical layer to streaming media service, and the transmission signal that forms physical layer also sends to user terminal UE.
The networking plan and the existing mobile communications network of existing single-carrier frequency broadcast network are separated, and have reduced the complexity of single-carrier frequency broadcast network to a certain extent.But there is following shortcoming:
1) networking plan and the existing mobile communications network owing to the single-carrier frequency broadcast network is separated, existing single-carrier frequency broadcast network can not utilize the Internet resources of existing mobile communications network, transmit broadcasting service but need rebulid communication network, thereby increased the networking cost;
2) because the single-carrier frequency broadcast network does not have ascending resource, and the class of business of broadcast is limited, be difficult to realization at existing single-carrier frequency broadcast network, can not realize the business of multicast class such as the business of interactive class.
3) charging mechanism is single, can only adopt flat rate system, can not adopt flexibly and charge by flow.
Summary of the invention
In view of this, main purpose of the present invention is to provide a kind of single-carrier frequency broadcast system, can reduce the networking cost on the basis that guarantees the availability of frequency spectrum.
Another object of the present invention is to provide a kind of single-carrier frequency broadcast system's realization the professional method that transmits, can on the basis that guarantees the availability of frequency spectrum, adopt the broadcasting of single-carrier frequency realization streaming media service.
For achieving the above object, technical scheme of the present invention specifically is achieved in that
A kind of single-carrier frequency broadcast system comprises mobile communications network, and this single-carrier frequency broadcast system also comprises:
Broadcast/multicast service center BM-SC is connected with the core net of mobile communications network, is used for authorizing and initiating broadcasting/packet service at mobile network, and transmits streaming media service via mobile communications network;
Independent descending frequency Node B NB node receives the streaming media service from gateway, and sends to user terminal UE after handling;
Gateway is used to connect BNB node and mobile communications network, and to the streaming media service from BM-SC of BNB node distribution via the mobile communications network transmission; Described gateway comprises:
The distribution module of streaming media service according to network configuration, sends to corresponding BNB node with described streaming media service;
RAB RAB configuration module, according to the quality QoS from described BM-SC, the RAB between gateway and the BNB node is set up in configuration;
The broadcasting service administration module manages the broadcasting flow process of streaming media service according to described BM-SC;
Described gateway also comprises: the multicast service administration module manages the multicast flow process of streaming media service according to described BM-SC.
Described gateway also comprises: coordination/synchronization module, and finish the internodal transmission of each BNB that is connected with described gateway and coordinate with synchronously.
Described mobile communications network is a Wideband Code Division Multiple Access (WCDMA) WCDMA system;
Described BNB node is special base station B-NodeB as broadcasting/packet service, is connected by the Iur interface between the radio network controller (RNC) among described gateway and the WCDMA;
Described BM-SC is connected with critical point GPRS Support Node GGSN among the WCDMA.
Described B-NodeB is different independent communities with gateway, is connected by self defined interface between described B-NodeB and the gateway;
Perhaps described B-NodeB and gateway are arranged in the same entity, and the interface between described B-NodeB and the gateway is an internal interface.
Described mobile communications network is a Wideband Code Division Multiple Access (WCDMA) WCDMA system;
Described gateway comprises the S1 interface function of the Mobility Management Entity/user entity MME/UPE among the evolvement network LTE, and the Iu interface function of the RNC among the WCDMA;
Described BNB node is evolution base station E-NodeB, is connected by the S1 interface between described gateway and the E-NodeB; Be connected by the Iu interface between the Serving GPRS Support Node SGSN among described gateway and the WCDMA;
Described BM-SC is connected with critical point GPRS Support Node GGSN among the WCDMA.
Interface between described gateway and the mobile communications network is the Iur interface of RNC, or the Iu interface of SGSN, or the Gp/Gn interface of GGSN;
Interface between described gateway and the BNB node is the S1 interface of E-NodeB among the LTE, or self defined interface.
A kind of single-carrier frequency broadcast structure is realized the professional method that transmits, and this method is applied to connect in the single-carrier frequency broadcast system of single-carrier frequency broadcast network and mobile communications network by gateway, and this method comprises:
When streaming media service transmitted, according to the quality QoS from described broadcast/multicast service center BM-SC, the RAB between gateway and the independent descending frequency Node B NB node was set up in configuration;
Broadcast/multicast service center BM-SC in the described single-carrier frequency broadcast network utilizes mobile communications network that streaming media service is sent to gateway;
Gateway sends to corresponding BNB node with described streaming media service;
Through the BNB node distribution flow media business of gateway in the single-carrier frequency broadcast network, the BNB node sends to user terminal UE after the streaming media service that receives is handled.
Described basis is from the QoS of survice of BM-SC, and the RAB that configuration is set up between gateway and the BNB node comprises:
Described BM-SC sends to mobile communications network and carries the professional QoS and the MBMS service conversation initiation command of relevant RAB parameter, after described mobile communications network is received MBMS service conversation initiation command, return the affirmation message that service conversation begins, and begin message to the MBMS service conversation that described gateway forwards receives;
Described gateway returns the affirmation message that service conversation begins to mobile communications network, and h.323-configured gateway connects to the RAB of BNB node, and indication BNB node is a streaming media service Resources allocation to be sent.
This method also comprises:
Behind described streaming media service end of transmission, described BM-SC sends MBMS service conversation the finish command to mobile communications network;
After described mobile communications network is received MBMS service conversation the finish command, return the affirmation message that service conversation finishes to described BM-SC, discharge self with BM-SC between be connected, and send MBMS service conversation the finish command to described gateway;
After described gateway is received MBMS service conversation the finish command, return the affirmation message that the MBMS service conversation finishes, and discharge self and be connected with RAB between the described BNB node.
Described streaming media service is a broadcasting service.
This method also comprises: the ascending resource that described UE utilizes described mobile communications network to provide, and carry out signatory process, user's adition process or user and withdraw from process.
Described streaming media service is a multicast service.
As seen from the above technical solution, in the single-carrier frequency broadcast structure of the present invention, connect single-carrier frequency broadcast network and mobile communications network by gateway, when the professional transmission of MBMS, BM-SC in the single-carrier frequency broadcast network utilizes mobile communications network, through the BNB node distribution MBMS business of gateway in the single-carrier frequency broadcast network.Because between the single-carrier frequency broadcast network and existing mobile communications network in the single-carrier frequency broadcast structure of the present invention, connect by gateway, make the single-carrier frequency broadcast network can utilize the Internet resources of existing mobile communications network to come transferring MBMS service data, thereby reduced the networking cost of single-carrier frequency broadcast structure.
Further, because in the single-carrier frequency broadcast structure of the present invention, the single-carrier frequency broadcast network is connected with existing mobile communications network, make the ascending resource that the user can provide by mobile communications network, use the more class of business of horn of plenty, such as the business of interactive class, the business of multicast class etc., similarly, utilize the charging mechanism of existing mobile communications network such as employing to charge by flow etc., make abundanter the charging mechanism of MBMS business.
Description of drawings
Fig. 1 is and has the single-carrier frequency broadcast schematic network structure that mobile communications network separates now;
Fig. 2 is a single-carrier frequency broadcast structure structural representation of the present invention;
Fig. 3 is the structural representation of single-carrier frequency broadcast structure embodiment one of the present invention;
Fig. 4 is the structural representation of single-carrier frequency broadcast structure embodiment two of the present invention.
Embodiment
Core concept of the present invention is: in the single-carrier frequency broadcast structure, connect single-carrier frequency broadcast network and mobile communications network by gateway, when streaming media service transmits, BM-SC in the single-carrier frequency broadcast network utilizes mobile communications network, through the BNB node distribution flow media business of gateway in the single-carrier frequency broadcast network, the BNB node sends to UE after the streaming media service that receives is handled.
For making purpose of the present invention, technical scheme and advantage clearer, below with reference to the accompanying drawing preferred embodiment that develops simultaneously, the present invention is described in more detail.
Fig. 2 is a single-carrier frequency broadcast network architecture schematic diagram of the present invention, and as shown in Figure 2, single-carrier frequency broadcast network of the present invention mainly comprises: BM-SC, gateway, mobile communications network and some BNB nodes.
Wherein, gateway is used to connect BNB node and mobile communications network, and distributes the streaming media service that BM-SC issues by mobile communications network.Be connected by the S interface between gateway and the BNB node, the S interface is a general designation here, the S1 interface that this S interface can be E-NodeB among the LTE etc.; Be connected by the I interface between gateway and the mobile communications network, the I interface is a general designation here, is Wideband Code Division Multiple Access (WCDMA) (WCDMA) system such as mobile communications network, and then the I interface is for the Iur interface that connects radio network controller (RNC) etc.Gateway comprises following functional module:
1. the distribution module of streaming media service:, streaming media service is sent to corresponding BNB node according to network configuration in advance;
2. coordination/synchronization module is finished the internodal transmission of each BNB that is connected with self and is coordinated to make the business datum of each BNB node and gateway self synchronous with synchronously; This coordination/synchronization module can omit.
3. RAB (RAB) configuration module according to the QoS (QoS) from BM-SC, disposes the RAB that sets up between gateway and the BNB node;
4. the broadcasting service module manages the broadcasting flow process of streaming media service according to BM-SC, as business begin, data transmission, service ending etc., here, the broadcasting service flow process can be stipulated referring to related protocol, repeats no more here.
The annexation that BM-SC adopts the existing protocol regulation is connected with GGSN in the core net of mobile communications network, and specific implementation can be referring to related protocol, no longer detailed description.Mobile communications network shown in Fig. 1 is existing network such as WCDMA system, evolvement network etc.
Among Fig. 2, when MBMS business datums such as the control messages of MBMS business or streaming media service sent, the MBMS business datum via mobile communications network, sent to gateway by BM-SC, is distributed to the BNB node by gateway again, at last by sending to UE after the BNB node processing.The process of transmitting of MBMS business roughly comprises following process:
1) service conversation begins.
BM-SC sends the MBMS service conversation to mobile communications network and begins (MBMS SESSIONSTART) order, carry in this MBMS service conversation initiation command: service identification (ID), type of service, bearer types, data are prepared the time of transmission, professional QoS, and relevant RAB parameter;
Mobile communications network returns the affirmation message that service conversation begins, and begins message to the MBMS service conversation that gateway forwards receives after receiving MBMS service conversation initiation command from BM-SC;
Gateway returns the affirmation message that service conversation begins to mobile communications network, and h.323-configured gateway connects to the RAB of BNB node, and indication BNB node is a MBMS traffic assignments resource to be sent.
2) business datum transmits.
BM-SC is transmitted to gateway with the MBMS business via mobile communications network, and gateway is transmitted to corresponding BNB node according to network configuration with the MBMS business; The BNB node is handled data, and sends to user terminal UE, and the function of BNB node repeats no more here with existing in full accord.
3) business finishes after the meeting.
Behind the professional end of transmission of MBMS, BM-SC sends the MBMS service conversation to mobile communications network and finishes (MBMS SESSION STOP) order, after mobile communications network is received MBMS service conversation the finish command, return the affirmation message that service conversation finishes to BM-SC, discharge self with BM-SC between be connected, and send MBMS service conversation the finish command to gateway;
After gateway is received MBMS service conversation the finish command, return the affirmation message that the MBMS service conversation finishes, discharge self and be connected with RAB between the BNB node.
From the networking structure schematic diagram of single-carrier frequency broadcast structure of the present invention shown in Figure 2 as seen, because in the single-carrier frequency broadcast structure of the present invention, be connected by gateway between single-carrier frequency broadcast network and the existing mobile communications network, make the single-carrier frequency broadcast network can utilize the Internet resources of existing mobile communications network to come transferring MBMS service data, thereby reduced the networking cost.
Further, gateway also has the multicast service administration module, according to BM-SC the multicast flow process of business datum is managed, as business begin, data transmission, service ending etc., here, the multicast service flow process can be stipulated referring to related protocol, repeats no more here.Different with the broadcasting service workflow management is that before session began, UE need carry out signatory process and user's adition process by mobile communications network, and after conversation end, UE need carry out the user by mobile communications network and withdraw from process.Need to prove that signatory process, user's adition process and user withdraw from the implementation procedure of process can be referring to related protocol, what emphasize here is, because single-carrier frequency broadcast network of the present invention is connected with existing mobile communications network by gateway, make the ascending resource that the user can provide by mobile communications network, use the more class of business of horn of plenty, such as the business of interactive class, the business of multicast class etc., similarly, utilize the charging mechanism of existing mobile communications network, make abundantlyer, charge by flow as employing etc. the charging mechanism of MBMS business.
Fig. 3 is the structural representation of single-carrier frequency broadcast structure embodiment one of the present invention, suppose that mobile communications network is the WCDMA network, as shown in Figure 3, the BNB node is called as B-NodeB, be connected by the Iur interface between the former RNC between the RNC among gateway and the UTRAN, be that the I interface is the Iur interface, gateway has the Iur interface function.
B-NodeB is connected with RNC by the Iur interface through gateway, connects the WCDMA core net by RNC by the Iu interface; BM-SC inserts the WCDMA core net by GGSN; B-NodeB and gateway can be two independent entities, and the S interface between B-NodeB and gateway can be self defined interface at this moment, as long as satisfy the MBMS business need; B-NodeB and gateway also can be arranged in the same entity, and the S interface between B-NodeB and gateway is an internal interface at this moment.
From network structure shown in Figure 3 as seen, the BNB node in the single-carrier frequency broadcast network is connected with the Access Network of mobile communications network by gateway, and core net and the BM-SC by mobile communications network connects again.
In single-carrier frequency broadcast structure shown in Figure 3, the process of transmitting of MBMS business comprises following process:
A. service conversation begins.
BM-SC is by the original MBMS operation flow among the WCDMA, GGSN in WCDMA and SGSN are sent to RNC with MBMS service conversation initiation command, carry in this MBMS service conversation initiation command: service identification (ID), type of service, bearer types, data are prepared the time of transmission, professional QoS, and relevant RAB parameter;
After RNC receives MBMS service conversation initiation command, return the affirmation message that service conversation begins through SGSN and GGSN to BM-SC, and begin message to the MBMS service conversation that gateway forwards receives;
Gateway returns the affirmation message that service conversation begins to WCDMA, and h.323-configured gateway connects to the RAB of B-NodeB, and indication B-NodeB is a MBMS traffic assignments resource to be sent.
B. business datum transmits.
BM-SC is transmitted to gateway with the MBMS business via WCDMA, and gateway is transmitted to corresponding B-NodeB according to network configuration with the MBMS business; B-NodeB handles data, and sends to UE.
C. business finishes after the meeting.
Behind the professional end of transmission of MBMS, BM-SC is by the original MBMS operation flow among the WCDMA, through WCDMA MBMS service conversation the finish command is sent to RNC, after RNC receives MBMS service conversation the finish command, return the affirmation message that service conversation finishes through WCDMA to BM-SC, RNC discharge self with BM-SC between be connected, and send MBMS service conversation the finish command to gateway;
After gateway is received MBMS service conversation the finish command, return the affirmation message that the MBMS service conversation finishes, discharge self and be connected with RAB between the B-NodeB.
Further, for the MBMS business of multicast, UE finishes signatory process, user's adition process and user by WCDMA and withdraws from process.
Fig. 4 is the structural representation of single-carrier frequency broadcast structure embodiment two of the present invention, suppose that mobile communications network is the WCDMA network, as shown in Figure 4, the BNB node is called as E-NodeB, Iu interface by former RNC between gateway and the SGSN is connected, be that the I interface is the Iu interface, by the S1 interface of the E-NodeB among the LTE, promptly the S interface is the S1 interface between gateway and the E-NodeB.
Concrete two functions of gateway shown in Fig. 4: the S1 interface function of the Mobility Management Entity/user entity among the LTE (MME/UPE), and the Iu interface function of the RNC among the WCDMA.Different with network configuration shown in Figure 3 is, the BNB node in the single-carrier frequency broadcast network is by gateway, directly and the SGSN in the mobile communications network core net be connected, and connect by GGSN in the core net and BM-SC.
In single-carrier frequency broadcast structure shown in Figure 4, the process of transmitting of MBMS business comprises following process:
A. service conversation begins.
BM-SC is by the original MBMS operation flow among the WCDMA, GGSN in WCDMA is sent to SGSN with MBMS service conversation initiation command, carry in this MBMS service conversation initiation command: service identification (ID), type of service, bearer types, data are prepared the time of transmission, professional QoS, and relevant RAB parameter;
After SGSN receives MBMS service conversation initiation command, return the affirmation message that service conversation begins to BM-SC, and begin message to the MBMS service conversation that gateway forwards receives by GGSN;
Gateway returns the affirmation message that service conversation begins to SGSN, and h.323-configured gateway connects to the RAB of E-NodeB, and indication E-NodeB is a MBMS traffic assignments resource to be sent.
B. business datum transmits.
BM-SC is transmitted to gateway with the MBMS business via GGSN and SGSN, and gateway is transmitted to corresponding E-NodeB according to network configuration with the MBMS business; E-NodeB handles data, and sends to UE.
C. business finishes after the meeting.
Behind the professional end of transmission of MBMS, BM-SC is by the original MBMS operation flow among the WCDMA, send MBMS service conversation the finish command through GGSN to SGSN, SGSN returns the affirmation message that the MBMS service conversation finishes, discharge being connected between BM-SC and the GGSN, and to gateway forwards MBMS service conversation the finish command;
After gateway receives MBMS service conversation the finish command, return the affirmation message that the MBMS service conversation finishes, the RAB that discharges between gateway and the E-NodeB connects.
Further, for the MBMS business of multicast, UE finishes signatory process, user's adition process and user by WCDMA and withdraws from process.
The above is preferred embodiment of the present invention only, is not to be used to limit protection scope of the present invention, all any modifications of being made within the spirit and principles in the present invention, is equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (13)
1. a single-carrier frequency broadcast system comprises mobile communications network, it is characterized in that, this single-carrier frequency broadcast system also comprises:
Broadcast/multicast service center BM-SC is connected with the core net of mobile communications network, is used for authorizing and initiating broadcasting/packet service at mobile network, and transmits streaming media service via mobile communications network;
Independent descending frequency Node B NB node receives the streaming media service from gateway, and sends to user terminal UE after handling;
Gateway is used to connect described BNB node and mobile communications network, and to the streaming media service from described BM-SC of described BNB node distribution via the mobile communications network transmission; Described gateway comprises:
The distribution module of streaming media service according to network configuration, sends to corresponding BNB node with described streaming media service;
RAB RAB configuration module, according to the quality QoS from described BM-SC, the RAB between gateway and the BNB node is set up in configuration;
The broadcasting service administration module manages the broadcasting flow process of streaming media service according to described BM-SC.
2. single-carrier frequency broadcast according to claim 1 system, it is characterized in that described gateway also comprises: the multicast service administration module manages the multicast flow process of streaming media service according to described BM-SC.
3. single-carrier frequency broadcast according to claim 1 and 2 system is characterized in that described gateway also comprises: coordination/synchronization module, finish that the internodal transmission of each BNB that is connected with described gateway is coordinated and synchronously.
4. single-carrier frequency broadcast according to claim 1 system is characterized in that described mobile communications network is a Wideband Code Division Multiple Access (WCDMA) WCDMA system;
Described BNB node is special base station B-NodeB as broadcasting/packet service, is connected by the Iur interface between the radio network controller (RNC) among described gateway and the WCDMA;
Described BM-SC is connected with critical point GPRS Support Node GGSN among the WCDMA.
5. single-carrier frequency broadcast according to claim 4 system is characterized in that described B-NodeB is different independent communities with gateway, is connected by self defined interface between described B-NodeB and the gateway;
Perhaps described B-NodeB and gateway are arranged in the same entity, and the interface between described B-NodeB and the gateway is an internal interface.
6. single-carrier frequency broadcast according to claim 1 system is characterized in that described mobile communications network is a Wideband Code Division Multiple Access (WCDMA) WCDMA system;
Described gateway comprises S 1 interface function of the Mobility Management Entity/user entity MME/UPE among the evolvement network LTE, and the Iu interface function of the RNC among the WCDMA;
Described BNB node is evolution base station E-NodeB, is connected by the S1 interface between described gateway and the E-NodeB; Be connected by the Iu interface between the Serving GPRS Support Node SGSN among described gateway and the WCDMA;
Described BM-SC is connected with critical point GPRS Support Node GGSN among the WCDMA.
7. single-carrier frequency broadcast according to claim 1 system is characterized in that the interface between described gateway and the mobile communications network is the Iur interface of RNC, or the Iu interface of SGSN, or the Gp/Gn interface of GGSN;
Interface between described gateway and the BNB node is the S1 interface of E-NodeB among the LTE, or self defined interface.
8. a single-carrier frequency broadcast system realizes the professional method that transmits, and this method is applied to connect in the single-carrier frequency broadcast system of single-carrier frequency broadcast network and mobile communications network by gateway, it is characterized in that this method comprises:
When streaming media service transmitted, according to the quality QoS from broadcast/multicast service center BM-SC, the RAB between gateway and the independent descending frequency Node B NB node was set up in configuration;
BM-SC in the described single-carrier frequency broadcast network utilizes mobile communications network that streaming media service is sent to gateway;
Gateway sends to corresponding BNB node with described streaming media service;
Through the BNB node distribution flow media business of gateway in the single-carrier frequency broadcast network, the BNB node sends to user terminal UE after the streaming media service that receives is handled.
9. method according to claim 8 is characterized in that, described basis is from the QoS of survice of BM-SC, and the RAB that configuration is set up between gateway and the BNB node comprises:
Described BM-SC sends to mobile communications network and carries the professional QoS and the MBMS service conversation initiation command of relevant RAB parameter, after described mobile communications network is received MBMS service conversation initiation command, return the affirmation message that service conversation begins, and begin message to the MBMS service conversation that described gateway forwards receives;
Described gateway returns the affirmation message that service conversation begins to mobile communications network, and h.323-configured gateway connects to the RAB of BNB node, and indication BNB node is a streaming media service Resources allocation to be sent.
10. method according to claim 9 is characterized in that, this method also comprises:
Behind described streaming media service end of transmission, described BM-SC sends MBMS service conversation the finish command to mobile communications network;
After described mobile communications network is received MBMS service conversation the finish command, return the affirmation message that service conversation finishes to described BM-SC, discharge self with BM-SC between be connected, and send MBMS service conversation the finish command to described gateway;
After described gateway is received MBMS service conversation the finish command, return the affirmation message that the MBMS service conversation finishes, and discharge self and be connected with RAB between the described BNB node.
11. each described method is characterized in that according to Claim 8～10, described streaming media service is a broadcasting service.
12. each described method is characterized in that according to Claim 8～10, this method also comprises: the ascending resource that described UE utilizes described mobile communications network to provide, and carry out signatory process, user's adition process or user and withdraw from process.
13. method according to claim 12 is characterized in that, described streaming media service is a multicast service.
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| CN1663312A (en) * | 2002-06-20 | 2005-08-31 | 艾利森电话股份有限公司 | Multimedia broadcast/multicast service (MBMS) support in UTRAN |
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| CN1663312A (en) * | 2002-06-20 | 2005-08-31 | 艾利森电话股份有限公司 | Multimedia broadcast/multicast service (MBMS) support in UTRAN |
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