WO2010088815A1

WO2010088815A1 - Method, device and system for broadcasting downloading-type service

Info

Publication number: WO2010088815A1
Application number: PCT/CN2009/073019
Authority: WO
Inventors: 孙超
Original assignee: 华为技术有限公司
Priority date: 2009-02-05
Filing date: 2009-07-31
Publication date: 2010-08-12
Also published as: CN101800937B; CN101800937A

Abstract

A method and device for broadcasting downloading-type service, a terminal, a broadcasting application server and system are disclosed in the present invention, which belongs to the field of communication technology. The method includes the steps of: receiving a request message for creating the downloading-type service sent from a broadcasting application server, distributing bandwidth to the downloading-type service according to the existing bearing channel and service-related information carried on the request message, obtaining a data file of the downloading-type service and broadcasting and sending it by using the bearing channel. The device includes: a receiving module, a judging module, a bandwidth distributing module, an obtaining module and a broadcasting module. The terminal includes: a file description table receiving module, a judging module and a data file receiving module. The broadcasting application sever includes a sending module and a receiving module. The system includes: the broadcasting application server and the device for broadcasting the downloading-type service. The present invention makes use of broadcasting bearing network resource efficiently.

Description

METHOD, APPARATUS AND SYSTEM FOR BROADCASTING DOWNLOAD CLASSIFICATION This application claims to be filed on February 5, 2009 in Chinese Patent Application No. 200910008498.5, entitled "Method, Apparatus and System for Broadcast Downloading Service" Priority is hereby incorporated by reference in its entirety. Technical field

The present invention relates to the field of communications technologies, and in particular, to a method, device, and system for a broadcast download service. Background technique

In the architecture model of the MBMS (Multimedia Broadcast/Multicast Service) user service, the data file of the Download service is transmitted by the sender to multiple receivers in a multicast manner ( Receiver).

The process of transmitting the download type service in the prior art is as follows:

The data files of the download-type service to be broadcast, such as file 1, file 2, and file 3, are queued according to the time schedule information of the download-type service; start an MBMS bearer session, and the GGSN of the wireless network (Gateway GPRS Supporting Node The GPRS support node gateway negotiates to establish a fixed-band bearer channel; converts the data file of the download-type service into a FLUTE (File delivery over Unidirectional Transport) data packet, and places the transformed FLUTE data packet on the established bearer channel. Broadcast to the receiving end; after the time scheduling of the downloading service ends, the GGSN of the wireless network is negotiated to remove the established bearer channel;

In the process of implementing the present invention, the inventors have found that the above prior art has at least the following problems:

A bearer channel can only transmit one download-type service. Before starting to transmit another download-type service, you must close the session initiated for the previous download-type service and the established bearer channel, restart a new MBMS bearer session, and restart the wireless network. The GGSN negotiates to establish a new bearer channel. For download-type services of the continuous update type such as stocks, weather reports, etc., the receiving end not only receives all the data files listed in one file list, but also receives subsequent updated data files of these files. When the continuous update type of the download service is broadcast, in order to ensure the continuous update of the service, the bearer channel needs to be exclusively occupied during the lifetime of the service. Even if the service does not need to carry all the bandwidth provided by the channel, the entire bearer channel is still occupied. . Therefore, the broadcast bearer network resources are not effectively utilized, and valuable resources are wasted. Summary of the invention

In order to make full use of the broadcast bearer network resources, the embodiments of the present invention provide a method, a device, a method for receiving a broadcast download service, a terminal, a broadcast application server, and a system. The technical solution is as follows:

A method for broadcasting a download-type service, the method comprising: receiving a request message for creating a download-type service sent by a broadcast application server, where the request message carries service-related information of the download-type service; determining whether a bearer exists a channel, if yes, using the existing bearer channel; assigning a corresponding bandwidth to the downloading service according to the service related information and the used bearer channel; and acquiring the downloading service from the broadcast application server Data file; broadcasts the data file by using the used bearer channel.

A method for receiving a downloading service, the method comprising: receiving, by a broadcast receiving terminal, a file description table, where the file description table carries service related information, where the service related information includes a service identifier; determining the file description table Whether the service identifier carried in the service identifier of the download-type service that is requested by the service identifier is received, and if yes, the data file corresponding to the download-type service to which the service identifier belongs is received.

An apparatus for broadcasting a download type service, the apparatus comprising: a receiving module, configured to receive a request message for creating a download type service sent by a broadcast application server, where the request message carries service related information of the download type service a judging module, configured to determine whether there is a bearer channel, if yes, using the existing bearer channel; and a bandwidth allocation module, configured to allocate, according to the service related information and the used bearer channel, the download service The obtaining module is configured to obtain a data file of the downloading service from the broadcast application server, and a broadcast module, configured to broadcast the data file by using the used bearer channel.

A terminal, the terminal includes: a file description table receiving module, configured to receive a file description table sent by a broadcast, where the file description table carries service related information, where the service related information includes a service identifier; And determining, by the file description table, that the service identifier carried in the file description table is a service identifier of a download service requested by the terminal; and a data file receiving module, configured to be used as the determining module When the service identifier is determined to be the service identifier of the download-type service requested by the terminal, the data file corresponding to the download-type service to which the service identifier belongs is received.

A broadcast application server, the server includes: a sending module, configured to send, to a device that broadcasts a download-type service, a request message for creating a download-type service, where the request message carries service-related information of the download-type service; And a module, configured to receive a response message returned by the device of the broadcast download type service.

A system for broadcasting a download-type service, the system comprising: a broadcast application server, configured to send a request message for creating a download-type service, where the request message carries service-related information of the download-type service, and receives a response message ; And a device for receiving a download service, configured to receive the request message sent by the broadcast application server, to determine whether a bearer channel exists, and if yes, use the existing bearer channel, according to the service related information and used a bearer channel, which allocates a corresponding bandwidth to the downloading service, and returns a response message to the broadcast application server, and is further configured to acquire a data file of the downloading service from the broadcast application server, and use the used bearer Channel, broadcast to send the data file.

The embodiment of the present invention implements the multiplexing of the broadcast bearer channel by using the existing bearer channel to broadcast the data file. When broadcasting the download type service of the continuous update type, it is not necessary to monopolize the fixed bearer channel as in the prior art. In the case where the download type service needs, the excess bandwidth can be allocated to other services, thereby making full use of the valuable broadcast bearer network resources. DRAWINGS

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the description of the prior art will be briefly described below. Obviously, the drawings in the following description are only It is a certain embodiment of the present invention, and other drawings can be obtained from those skilled in the art without any inventive labor.

1 is a flowchart of a method for broadcasting a download service according to an embodiment of the present invention;

2 is a flowchart of another method for broadcasting a download type service according to an embodiment of the present invention;

3 is a schematic diagram of multiplexing multiple download-type services according to priorities according to an embodiment of the present invention;

4 is a schematic diagram of multiplexing downloading services provided by two broadcast application servers according to an embodiment of the present invention;

FIG. 5 is a schematic structural diagram of a broadcast application server according to an embodiment of the present invention;

6 is a schematic structural diagram of an apparatus for a broadcast download service according to an embodiment of the present invention;

7 is a schematic diagram of a broadcast receiving terminal according to an embodiment of the present invention;

FIG. 8 is a schematic diagram of a system for a broadcast download service according to an embodiment of the present invention. detailed description

The technical solutions in the embodiments of the present invention are clearly and completely described in the following with reference to the accompanying drawings in the embodiments of the present invention. It is obvious that the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative efforts are within the scope of the present invention. Referring to FIG. 1, an embodiment of the present invention provides a method for broadcasting a download service, which specifically includes:

And receiving a request message for creating a download service, where the request message carries service related information of the download service, specifically, the service identifier and the service type, or further includes a priority. Information, etc.

102: Determine whether there is a bearer channel, if yes, use the existing bearer channel;

Further, in the embodiment of the present invention, when it is determined that there is no bearer channel, a bearer channel may be created, and the created bearer channel is used, and the bearer channel involved in the embodiment of the present invention includes but is not limited to: a wireless broadcast channel;

103: Allocate a corresponding bandwidth for the requested download service according to the service related information carried by the request message and the used bearer channel;

104: Obtain a data file of the requested download type service from a broadcast application server;

105: Broadcast the acquired data file to the wireless network by using the used bearer channel.

Further, the data file and the file description table may be broadcast and sent, where the file description table carries the service identifier in the service-related information, where the service identifier is used by the broadcast receiving terminal to receive the data of the download-type service to which the service identifier belongs. file.

In this embodiment, the multiplexing of the downloading service is implemented by using the existing bearer channel to broadcast the data file. When the downloading service of the continuous update type is broadcast, it is not necessary to monopolize the fixed bearer channel as in the prior art, and the download is satisfied. If the class service needs it, the excess bandwidth can be allocated to other services, which greatly saves valuable broadcast bearer network resources. Referring to FIG. 2, an embodiment of the present invention provides a method for broadcasting a download service, which specifically includes:

201: The broadcast application server sends a request message for creating a download-type service event to the broadcast download server, where each download-type service includes one or more data files that can be carried on the bearer channel;

The request message includes the following key parameters:

A service identifier (such as GlobalServicelD) that uniquely identifies the download service;

Download the bandwidth requirements of the business;

The type of the download service, including at least the best effort forwarding type and the specified bandwidth type;

The best-effort forwarding type refers to the situation in which the broadcast download server is occupied according to the bandwidth of the bearer channel, and the download-type service is added to the bearer channel in the best-effort manner, and then forwarded to the wireless network. For the download-type service of the best-effort type, the request message may not include the bandwidth requirement of the download service. The default is that the broadcast download server forwards the bandwidth according to the unoccupied bandwidth in the bearer channel. For example, mobile newspapers, music charts and other services. The specified bandwidth type refers to the bandwidth requirement of the download service according to the request message, and the bearer bandwidth is allocated in the bearer channel, and the download service can be added to the bearer channel in time and forwarded to the wireless network. For example, stocks, weather forecasts, etc.

Further, the request message may further include one or more of the following other parameters:

The time schedule information of the download service, for example, the start time, the valid time, and the end time of the download and download service; and the bearer related information of the download service;

The priority of the download-type service is compared with that of other download-type services. The priority of the download-type service of the best-effort type is lower than the priority of the download-type service of the specified bandwidth type.

202: After receiving the request message, the broadcast download server determines whether the bearer channel exists in the wireless network, if yes, performs 204, otherwise, performs 203;

203: The broadcast download server starts an MBMS bearer session, and negotiates with the GGSN device of the wireless network to establish a bearer channel of a preset bandwidth. After the GGSN device successfully establishes the bearer channel in the wireless network, responds to the session success message to the broadcast download server. ;

204: The broadcast download server determines whether the type of the download type service included in the request message is a specified bandwidth type, or a best-effort type, if the specified bandwidth type, execute 205, otherwise, for the best-effort type, execute 207;

205: The broadcast download server determines whether the available bandwidth in the bearer channel of the wireless network meets the bandwidth requirement of the download service included in the request message. If not, execute 206. If yes, the preset bandwidth is greater than or If the bandwidth of the download-type service request of the specified bandwidth type is greater than or equal to the bandwidth of the download-type service request of the specified bandwidth type, the 207 is executed;

If the bearer channel of the wireless network is a newly established bearer channel, the available bandwidth is equal to the preset bandwidth. If the bearer channel in the wireless network is an existing bearer channel, the available bandwidth is in the existing bearer channel. Unoccupied bandwidth.

206: At this time, the preset bandwidth is smaller than the bandwidth of the download service request of the specified bandwidth type, or the bandwidth of the existing bearer channel is less than the bandwidth of the download service request of the specified bandwidth type, and the broadcast download server broadcasts The application server returns a response message that fails or needs to wait, indicating that the current request fails, or notifying the broadcast application server to wait, and then re-requesting after a period of time;

207: The broadcast download server allocates bandwidth for the download-type service corresponding to the service identifier included in the request message, responds to the broadcast application server with the success information of the download-type service transaction, and obtains the data file of the download-type service from the broadcast application service.

Wherein, if the requested download type service is a specified bandwidth type, the broadcast download server includes according to the request message. The downloading service class allocates bandwidth according to the bandwidth requirement; if the requested downloading service is the best-effort type, and the available bandwidth in the bearer channel satisfies the bandwidth requirement of the downloading service included in the request message, the broadcast download server includes the request message according to the request message. The download-type service allocates bandwidth to the bandwidth requirement. If the available bandwidth in the bearer channel does not meet the bandwidth requirement of the download-type service included in the request message, the broadcast download server allocates bandwidth according to the available bandwidth in the bearer channel.

208: The broadcast download server converts the acquired data file of the download type service into a FLUTE data message, and broadcasts the converted FLUTE data message by using the bearer channel;

Further, the broadcast download server uses an FDT (File Description Table) to describe the attributes of each data file being carried in the bearer channel, and multiplexes the FDT description table into the bearer channel for broadcast transmission at intervals. Specifically, in this embodiment, the attributes of the data file are described in the FDT in the following manner: In the attribute of each data file described by the FDT, the service identifier of the download type service to which the data file belongs is added.

209: The broadcast receiving terminal receives the FDT from the bearer channel, and searches for the data file corresponding to the service identifier in the received FDT according to the service identifier of the download type service that the broadcast receiving terminal requests to download;

210: The broadcast receiving terminal receives all the data files corresponding to the service identifier in the data stream of the bearer channel, and then forms all the data files received into a complete download service;

211: When the broadcast receiving terminal detects the object end flag, stops receiving the data file from the bearer channel, or stops receiving the data file from the bearer channel according to the instruction to stop receiving the data file.

After the broadcast download server completes a complete download service broadcast, an object end flag is sent to instruct the broadcast receiving terminal to stop receiving the data file.

Further, in this embodiment, when the broadcast download server receives the request message of the plurality of download-type services, and the request message includes the priority information, each of the plurality of download-type services may be separately allocated for the download-type service. The bandwidth, and the obtained data files of each download type service are sequentially multiplexed into the bearer channel in order of priority from high to low, and broadcasted to the wireless network.

For example, referring to Figure 3, there are three download-type services, namely, download-type service 1, download-type service 2, and download-type service 3. The service identifiers are 1, 2, and 2, respectively, and the priorities are 2, 1, and 3, respectively. The bandwidths sent are 3, 2, and 1, respectively. If the bandwidth of the bearer channel is 6, the download service type 3, the download type service 1 and the download type service 2 are sequentially sent in the order of priority, and the data packets of the first download type service 3 are sequentially sent according to the bandwidth, and 3 The data packet of the class 1 service, the data packet of the 2 download class service 2, and the like, and the three download class services are multiplexed and broadcasted.

In this embodiment, the FDT is used to describe attributes that carry each data file in the bearer channel. The FDT-InstanceType of the FDT is used to describe the attributes of all data files carried in the bearer channel. The FileType of the FDT-InstanceType is used to describe the attributes of a data file. In this embodiment, each FileType includes a service identifier. GlobalServicelD is used to identify the download service to which the data file belongs. A FileType can include multiple GlobalService1Ds, indicating that the data file described by the FileType belongs to multiple download-type services at the same time. The XML description of FDT in this embodiment is as follows:

<?xml version:" 1.0" encoding= "UTF-8 " ?>

<xs: schema

Xmlns:xs= ^M http://www.w3.org/2001/XMLSchema ^M

Xmlns:mbms= ^M urn:3GPP:metadata:2005:MBMS:FLUTE:FDT ^M

targetNamespace="urn:IETF:metadata:2005:FLUTE:FDT ^M

elementFormDefault="qualified">

<xs:complexType name="FileType">

<xs:complexContent>

<xs:extension base="mbms:FileType">

<xs:sequence>

<xs:element name="GlobalServiceID ^fl type= ^f† xs:anyURI ^fl minOccurs="0" maxOccurs= ^f† unbounded ^f V>

</xs:sequence>

</xs:extension>

</xs:complexContent>

</xs:complexType>

<xs:complexType name='TDT-InstanceType">

<xs:complexContent>

<xs:extension base=" mbms:FDT-InstanceType">

<xs:sequence>

<xs:element name= ^f† GlobalServiceID ^f† type= ^f† xs:anyURI"

minOccurs=,,0" maxOccurs="unbounded"/>

</xs:sequence>

</xs:extension>

</xs:complexContent> </xs:complexType>

</xs:redefine>

</xs:schema>

The <xs:element name="GlobalServiceID"/> is an element that is extended in the FDT. The name of the element is GlobalServicelD, which is the service identifier, which is used to identify the download service to which the data file belongs.

In order to be able to clearly explain the FDT, a specific embodiment will be described next. For example, the data files carried on the bearer channel are servicel.txt, service2.txt, and P joke.txt. Servicel.txt belongs to the download service 1, service2.txt belongs to the download service 2, joke.txt belongs to the download service 1 and the download service 2 . Download class business 1 and download class Business 2 business identity GlobalServicelD is 1 and P 2 respectively. In FDT, the GlobalServicelD value of servicel .txt is 1, the GlobalServicelD value of service2.txt is 2, and the GlobalServicelD value of joke.txt is 1 and 2. So the specific XML description of this embodiment is as follows:

<?xml version:" 1.0" encoding= "UTF-8 " ?>

<FDT-Instance

Xmlns="urn:IETF:metadata:2005:FLUTE:FDT"

Xmlns:xsi="http:〃 www. w3.org/2001/XMLSchema-instance"

Xsi:schemaLocation="urn:IETF:metadata:2005:FLUTE:FDT 3gpp-flute-fdt-choice3.xsd" FEC-OTI-FEC-Encoding-ID=" 1 "

Complete="true"

Content-Encoding="gzip"

FEC-OTI-Encoding-Symbol-Length="512"

Expires="345126650">

<File

Content-Type=" String"

Content-Length=" 1245 "

Transfer-Length: "876"

TOI="2"

FEC-OTI-Encoding-Symbol-Length=" 16"

FEC-OTI-Scheme-Specific-Info="AAEBBA=="

Content-Location="http://www. example. com/servicel .txt/c">

</File>

<File

Content-Type=" String"

Content-Length=" 161934"

Transfer-Length=" 157821 "

TOI="3"

FEC-OTI-Encoding-Symbol-Length=" 512"

Content-Location=''http://www. example.com/service2/service2.txt' ¹ >

<MBMS-Session-Identity>93</MBMS-Session-Identity>

</File>

<File

Content-Type=" String"

Content-Length=" 161934"

Transfer-Length=" 157821 "

T0I="3"

FEC-OTI-Encoding-Symbol-Length=" 512"

Content-Location=''http://www. example.com/common/joke.txt' ¹ >

<MBMS-Session-Identity>93</MBMS-Session-Identity>

</File>

<MBMS-Session-Identity-Expiry

Value="3311288760">93</MBMS-Session-Identity-Expiry>

</FDT-Instance>

Among them, Content-Location="http:〃 www. example. com/servicel.txt/c"> and <GlobalServiceID>l </GlobalServiceID> indicates: The file sevicel.txt belongs to the download business 1; Content-Location=" Http:〃 www.example.com/service2/service2.txt">and <GlobalServiceID>2</GlobalServiceID> Ming: The file service2.txt belongs to the download service 2; Content-Location=''http://www. Example.com/common/joke.txt">> <GlobalServiceID>l</ 01.1^1860^610> and <0101^1860^610>2</ GlobalServiceID> indicate that the file joke.txt belongs to both the download type service 1 and the download type service 2.

In this embodiment, when a plurality of broadcast application servers respectively initiate a request for downloading a service to the broadcast download server, the plurality of data files may be multiplexed into the data stream by using the established bearer. Referring to Figure 4, there are two broadcast application servers to initiate requests. The multiplexing process is as follows:

401: The broadcast application server 1 sends a request for creating a download service to a device of a broadcast download service;

402: After receiving, the device that broadcasts the download service sends an MBMS Session Start Request message to the GGSN.

403: After receiving the GGSN, establishing a bearer channel of the wireless network, and replying to the MBMS Session Start Response message to the device for broadcasting the download service;

404: The device for broadcasting the download service determines whether the available bandwidth of the established bearer channel meets the requirement, and if yes, responds to the broadcast application server 1;

405: The broadcast application server 1 submits the data file to the device of the broadcast download type service;

406: The device for broadcasting the download service inserts the data file into the FLUTE stream according to the bandwidth of the bearer channel, and broadcasts the broadcast to the wireless network;

407: The broadcast application server 2 sends a request for creating a download type service to the device of the broadcast download type service;

408: After receiving the broadcast download service, the device directly responds to the broadcast application server 2 because the bearer channel has been established;

409: The broadcast application server 2 submits the data file to the device of the broadcast download type service;

410: The device for broadcasting the download service multiplexes the data file into the FLUTE stream according to the bandwidth of the bearer channel, and broadcasts the data to the wireless network.

In this embodiment, the multiplexing of the downloading service is implemented by using the existing bearer channel to broadcast the data file. When the downloading service of the continuous update type is broadcast, it is not necessary to monopolize the fixed bearer channel as in the prior art, and the download is satisfied. In the case of a class service, the excess bandwidth can be allocated to other services, thereby making full use of valuable broadcast bearer network resources. By setting a service identifier for the download type service and adding a broadcast transmission to the file description table, the broadcast receiving terminal can receive the corresponding data file according to the service identifier. When there are multiple download-type service requests, they are multiplexed to the used bearer channel for broadcast transmission according to the priority from high to low, which can further effectively utilize the broadcast bearer network resources. The embodiment of the invention further provides a method for receiving a downloading service, which specifically includes: The broadcast receiving terminal receives a file description table, where the file description table carries service related information, where the service related information includes a service identifier;

Determining whether the service identifier carried in the file description table is the service identifier of the download-type service requested by the service description, and if yes, receiving the data file corresponding to the download-type service to which the service identifier belongs.

The file description table is sent by the broadcast download server and is used to describe the attributes of each data file being carried in the bearer channel. Generally, the broadcast download server multiplexes the file description table to the bearer at intervals. The broadcast is sent out in the channel. In this embodiment, the attribute of each data file in the file description table received by the broadcast receiving terminal includes the service identifier of the download type service to which the data file belongs.

Further, the above method further includes:

When the broadcast receiving terminal detects the object end flag, it stops receiving the data file from the bearer channel, or stops receiving the data file from the bearer channel according to the instruction to stop receiving the data file.

In the method for receiving the download-type service, the broadcast receiving terminal can receive the data file of the download-type service requested by the broadcast receiving terminal by determining the service identifier in the file description table, thereby implementing receiving the data file as needed. Referring to FIG. 5, an embodiment of the present invention provides a broadcast application server, which specifically includes:

The sending module 501 is configured to send, by the device that broadcasts the downloading service, a request message for creating a downloading service, where the request message carries the service related information of the downloading service;

The receiving module 502 is configured to receive a response message returned by the device that broadcasts the download type service.

The sending module 501 specifically includes:

a sending unit, configured to send a request message for creating a downloading service to a device for downloading a service, where the request message carries a service identifier and a service type of the downloading service, or a service identifier and a service carrying the downloading service Type and priority information.

The service identifier is used to identify the download service, and the broadcast receiving terminal can receive the corresponding data file according to the service identifier. The service type includes a best effort forwarding type and a specified bandwidth type, and the device of the broadcast download type service can allocate the corresponding bandwidth according to the service type. When the priority information is used to broadcast multiple download services, the data files of each download service are sequentially multiplexed into the bearer channel according to the priority from high to low, and broadcasted to the wireless network. The priority of the download type service of the best-effort type is lower than the priority of the download type service of the specified bandwidth type.

Further, the request message may include one or more of the following other parameters in addition to the service identifier and the service type:

Time schedule information of the download service, such as the start time, valid time, and end time of the download and download service; Download the bearer related information of the class service;

The priority of the download class business relative to other download class services.

In this embodiment, by sending a request message carrying the service-related information of the download-type service, the device that broadcasts the download-type service can use the existing bearer channel to broadcast the data file according to the service-related information, thereby realizing the multiplexing of the download-type service. When the broadcast type of the download type service is continuously updated, it is not necessary to monopolize the fixed bearer channel as in the prior art. When the download type service is satisfied, the excess bandwidth can be allocated to other services, thereby fully utilizing Valuable broadcasts carry network resources. When multiple download-type services are broadcast, the bandwidth is allocated according to the priority information to perform multiplex broadcast, and the broadcast bearer network resources can be further effectively utilized. Referring to FIG. 6, an embodiment of the present invention provides an apparatus for broadcasting a download service, which specifically includes:

The receiving module 601 is configured to receive a request message for creating a downloading service sent by the broadcast application server, where the request message carries service related information of the downloading service;

The determining module 602 is configured to determine whether there is a bearer channel, if yes, use the existing bearer channel; the bandwidth allocation module 603 is configured to allocate a corresponding bandwidth for the download service according to the service related information and the used bearer channel, The bearer channel includes but is not limited to: a wireless broadcast channel;

The obtaining module 604 is configured to obtain a data file of the download type service from the broadcast application server;

The broadcast module 605 is configured to broadcast a data file by using the used bearer channel.

In this embodiment, the service related information includes a service identifier and a service type, and further, may further include priority information. In addition, when the judging module 602 judges that there is no bearer channel, it can create a bearer channel and use the created bearer channel.

The bandwidth allocation module 603 specifically includes:

a determining unit, configured to determine whether the service type in the service related information is a best effort forwarding type or a specified bandwidth type; the first allocation unit is configured to allocate a bandwidth to the downloading service when the determining unit determines that the service type is the best effort forwarding type;

The second allocation unit is configured to determine, when the determining unit determines that the service type is the specified bandwidth type, whether the available bandwidth of the used bearer channel satisfies the bandwidth required by the downloading service, and if yes, allocate bandwidth to the downloading service. Further, if it is determined that the available bandwidth of the used bearer channel does not satisfy the bandwidth required by the download type service, a failure response message or a response message to be waited for may be returned to the broadcast application server.

In addition, in this embodiment, the broadcast module 605 may specifically include:

a broadcast unit, configured to broadcast a data file and a file description table by using a used bearer channel, the file description table The service identifier in the service-related information is carried in, and is used by the broadcast receiving terminal to receive the data file of the download-type service to which the service identifier belongs.

Further, the device for the broadcast downloading service further includes:

a multiplexing module, configured to: when the receiving module 601 receives the request message of the plurality of downloading services, and the priority information is included in the requesting message, allocate bandwidth to each of the plurality of downloading services, The data files of each downloaded service are obtained, and are sequentially multiplexed into the used bearer channel for broadcast transmission according to the order of priority from high to low.

In this embodiment, the receiving module receives the request message for creating the downloading service sent by the broadcast application server, and the bandwidth allocation module allocates corresponding bandwidth for the downloading service according to the service related information included in the request message and the used bearer channel, and the broadcast module will The data files obtained by the acquisition module are multiplexed into the existing bearer channel and broadcasted to the wireless network to implement multiplexing of the download-type service. When the broadcast-type service of the download type is broadcasted continuously, it is not necessary to monopolize the fixed service as in the prior art. The bearer channel can allocate excess bandwidth to other services to meet the needs of the downloading service, thereby fully utilizing valuable broadcast bearer network resources. When there are multiple download-type service requests, they are multiplexed to the used bearer channel for broadcast transmission according to the priority from high to low, which can further effectively utilize the broadcast bearer network resources. Referring to FIG. 7, an embodiment of the present invention provides a broadcast receiving terminal, which specifically includes:

a file description table receiving module 701, configured to receive a file description table sent by the broadcast, where the file description table carries service related information, where the service related information includes a service identifier;

The determining module 702 is configured to determine whether the service identifier carried in the file description table received by the file description table receiving module 701 is a service identifier of the downloading service requested by the terminal;

The data file receiving module 703 is configured to: when the determining module 702 determines that the service identifier is a service identifier of the downloading service requested by the terminal, and receive a data file corresponding to the downloading service to which the service identifier belongs.

Further, the broadcast receiving terminal is further configured to: stop receiving the data file from the bearer channel when detecting the object end flag, or stop receiving the data file from the bearer channel according to the instruction to stop receiving the data file.

In this embodiment, the file description module receives the file description table sent by the broadcast by the file description table, and the data file receiving module receives the data file corresponding to the download type service to which the service identifier belongs in the file description table according to the result of the judgment module, so that The broadcast receiving terminal can receive the corresponding data file according to the service identifier, and realizes receiving the data file according to the need. Referring to FIG. 8, an embodiment of the present invention provides a system for broadcasting a download service, which specifically includes:

The broadcast application server 801 is configured to send a request message for creating a download type service, where the request message carries the service related information of the created download type service, and receives the response message;

The device 802 of the broadcast download service is configured to receive the request message sent by the broadcast application server 801, and determine whether there is a bearer channel. If yes, use the existing bearer channel, according to the service related information included in the request message and the used bearer channel. And allocating a corresponding bandwidth for the created downloading service, and returning a response message to the broadcast application server 801, and also for obtaining the data file of the downloading service from the broadcast application server 801, and transmitting the acquired data by using the used bearer channel. The file, the bearer channel includes but is not limited to: a wireless broadcast channel.

In this embodiment, the service related information includes a service identifier and a service type, and further, may further include priority information. In addition, when the device 802 that broadcasts the download service determines that there is no bearer channel, it can create a bearer channel and use the created bearer channel.

Further, if the device 802 that broadcasts the download-type service determines that the available bandwidth of the used bearer channel does not satisfy the bandwidth required by the download-type service, it may return a failed response message or a response message that needs to be waited for to the broadcast application server.

In addition, in this embodiment, the device 802 of the broadcast downloading service can use the used bearer channel to broadcast a data file and a file description table, where the file description table carries the service identifier in the service related information, and is used for broadcast receiving. The terminal receives the data file of the downloading service to which the service identifier belongs.

In this embodiment, the broadcast application server sends a request message for creating a download type service, and the broadcast download server allocates bandwidth for the requested download type service, and multiplexes the obtained data file into the existing bearer channel, broadcasts and sends out, and implements the download class. When the broadcast service of the type is continuously updated, it is not necessary to monopolize the fixed bearer channel as in the prior art, and the excess bandwidth can be allocated to other services if the download service needs are satisfied. Use, thus making full use of valuable broadcast bearer network resources. Through the description of the above embodiments, those skilled in the art can clearly understand that the present invention can be implemented by means of software plus a necessary general hardware platform, and of course, can also be through hardware, but in many cases, the former is a better implementation. . Based on such understanding, the technical solution of the embodiments of the present invention may be embodied in the form of a software product in essence or in the form of a software product, which is stored in a storage medium and includes a plurality of instructions for making The mobile device (which may be a cell phone, personal computer, media player, etc.) performs the methods described in various embodiments of the present invention. The storage medium referred to herein is, for example, a ROM/RAM, a magnetic disk, an optical disk, or the like. The above is only the preferred embodiment of the present invention, and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., which are within the spirit and scope of the present invention, should be included in the protection of the present invention. Within the scope.

Claims

Claim

A method for broadcasting a download type service, the method comprising:

And receiving, by the broadcast application server, a request message for creating a download type service, where the request message carries service related information of the download type service;

Determining whether there is a bearer channel, and if so, using the existing bearer channel;

And allocating a corresponding bandwidth to the downloading service according to the service related information and the used bearer channel; acquiring the data file of the downloading service from the broadcast application server;

The data file is broadcast transmitted using the used bearer channel.

The method for broadcasting a download-type service according to claim 1, wherein the corresponding bandwidth is allocated to the download-type service according to the service-related information and the used bearer channel, which specifically includes:

Determining whether the service type in the service related information is a best effort forwarding type or a specified bandwidth type;

If it is a best-effort type, allocate bandwidth to the download-type service;

If the bandwidth type is specified, it is determined whether the available bandwidth of the used bearer channel satisfies the bandwidth required by the downloading service, and if yes, allocates bandwidth to the downloading service.

The method for broadcasting a broadcast-type service according to claim 1, wherein the transmitting the data file by using the used bearer channel comprises:

And transmitting, by using the used bearer channel, the data file and the file description table, where the file description table carries the service identifier in the service related information, where the broadcast receiving terminal receives the download to which the service identifier belongs. Data files for class services.

The method for broadcasting a broadcast service according to claim 3, wherein the service identifier is carried in an element added in a data file attribute field in the file description table.

The method for broadcasting a download-type service according to claim 1, wherein the method further comprises: when receiving a request message of a plurality of download-type services, and the request message includes priority information, respectively Each of the plurality of download-type services allocates bandwidth, and the acquired data files of each download-type service are sequentially multiplexed to the used bearer channel in descending order of priority. Broadcast in the middle.

A method for receiving a download-type service, the method comprising:

The broadcast receiving terminal receives a file description table, where the file description table carries service related information, and the service related information includes a service identifier;

Determining whether the service identifier carried in the file description table is a service identifier of the download-type service requested by the service description, and if yes, receiving a data file corresponding to the download-type service to which the service identifier belongs.

The method for receiving a download-type service according to claim 6, wherein the service identifier is carried in a new element in a data file attribute field in the file description table.

8. A device for broadcasting a download type service, the device comprising:

a receiving module, configured to receive a request message for creating a downloading service sent by a broadcast application server, where the request message carries service related information of the downloading service;

a determining module, configured to determine whether there is a bearer channel, if yes, using the existing bearer channel; and a bandwidth allocation module, configured to allocate, according to the service related information and the used bearer channel, the downloading service Bandwidth

An obtaining module, configured to acquire, by the broadcast application server, a data file of the download-type service;

a broadcast module, configured to broadcast the data file by using the used bearer channel.

The device of the broadcast downloading service according to claim 8, wherein the bandwidth allocation module specifically includes:

a determining unit, configured to determine whether the service type in the service related information is a best effort forwarding type or a specified bandwidth type; the first allocation unit is configured to: when the determining unit determines that the service type is a best effort forwarding type, Describe the bandwidth allocated by the download service;

a second allocation unit, configured to: when the determining unit determines that the service type is a specified bandwidth type, determine whether the available bandwidth of the used bearer channel satisfies the bandwidth required by the downloading service, and if yes, give The download type service allocates bandwidth.

The device of the broadcast downloading service according to claim 8, wherein the broadcast module specifically includes: a broadcast unit, configured to broadcast, by using the used bearer channel, the data file and the file description table, where the file description table carries a service identifier in the service related information, where the broadcast receiving terminal receives the The data file of the download service to which the service ID belongs.

The device of the broadcast downloading service according to claim 8, wherein the device further comprises: a multiplexing module, configured to: when the receiving module receives a request message of multiple downloading services, and request When the message includes the priority information, the bandwidth is allocated for each of the plurality of downloading services, and the data files of each of the downloaded services are obtained in descending order of priority. Broadcasting is sequentially multiplexed into the used bearer channel.

A terminal, wherein the terminal comprises:

a file description table receiving module, configured to receive a file description table sent by the broadcast, where the file description table carries service related information, where the service related information includes a service identifier;

a determining module, configured to determine whether the service identifier carried in the file description table received by the file description table receiving module is a service identifier of a downloading service requested by the terminal;

And a data file receiving module, configured to: when the determining module determines that the service identifier is a service identifier of a downloading service requested by the terminal, receiving a data file corresponding to the downloading service to which the service identifier belongs.

The terminal according to claim 12, wherein the service identifier is carried in a new element in a data file attribute field in the file description table.

A broadcast application server, wherein the server comprises:

a sending module, configured to send, by the device that broadcasts the downloading service, a request message for creating a downloading service, where the request message carries the service related information of the downloading service;

And a receiving module, configured to receive a response message returned by the device of the broadcast download type service.

The broadcast application server according to claim 14, wherein the sending module specifically includes: a sending unit, configured to send, to the device that broadcasts the downloading service, a request message for creating a downloading service, where the request message is The service identifier and the service type of the service that carries the downloading service, or the service identifier, the service type, and the priority information of the downloading service.

16. A system for broadcasting download-type services, the system comprising:

a broadcast application server, configured to send a request message for creating a download type service, where the request message carries service related information of the download type service, and receives a response message;

And a device for receiving a download service, configured to receive the request message sent by the broadcast application server, to determine whether a bearer channel exists, and if yes, use the existing bearer channel, according to the service related information and used a bearer channel, which allocates a corresponding bandwidth to the downloading service, and returns a response message to the broadcast application server, and is further configured to acquire a data file of the downloading service from the broadcast application server, and use the used bearer Channel, broadcast to send the data file.