CN105282108A - Intelligent guiding access method in multimedia transmission system - Google Patents

Abstract

The invention provides an intelligent guiding access method in a multimedia transmission system. The method comprises the following steps that step1, a new guiding access bootstrapping signaling is defined and data packaging and transmission which take an IP as a center are supported; step2, based on the newly defined guiding access signaling, a user finds a service information entry and selects a needed service. In a technical scheme of the invention, aiming at a correlation access information loss problem in a data packaging and transmission system taking the IP as a center (IP-centric), through defining a new input format signaling, the guiding access method is provided so that the user can effectively access and find the needed service.

Description

Intelligently guiding cut-in method in a kind of multi-media transmission system

Technical field

The present invention relates to a kind of method in the access of multimedia delivery network intelligently guiding, more particularly, relate to multimedia pattern of the input definition in the fusion of a kind of future network, the definition of guiding signaling and process, information on services access, service content inquiry and selection access etc.

Background technology

In multimedia delivery network system, there is various different physical layer transmission technology, such as broadcast transmission ATSC3.0, NGB-W, DVB-T2/NGH, two-way communication technology such as broadband, mobile communication etc.Equally, upper strata also has various different transport layer protocol to emerge in large numbers, such as MMT (MPEGMediaTransport, ISO/IEC23008-1), FLUTE, RTP etc.When these different upper layer transport protocol being applied in these different physical layer transmission technology, how to guide access (bootstrapping), allow user/terminal can find access entrance smoothly, finding optional service and accessing smoothly is an important topic.

In existing digital television broadcasting, the Various types of data comprising audio frequency and video is all undertaken encapsulating by the form of transport stream (TransportStream, TS) and transmit.In the process that encapsulation is multiplexing, add relevant information data.By first accessing these information datas, thus can learn which is served when user accesses, what visit information is, thus effective access.

Along with the development of technological evolvement and application, centered by IP, the data encapsulation of (IP-centric) and transmission obtain and apply more and more widely, are the necessary component of the multi-media transmission systems such as generation digital television broadcasting.Fig. 1 is an application case.A complete multi-media transmission system, upper strata has various different service content encapsulation, packs to be transmitted by IP.Do not have the multiplexing packing of TS, relevant information data has also lacked, and how to guide user, how effectively to access, and finds the service needed for user to be the problem that we need to solve.

Summary of the invention

For defect of the prior art, the present invention, in the data encapsulation of (IP-centric) centered by IP and transmission system, when relevant information data also lacks, provides intelligently guiding cut-in method in a kind of multi-media transmission system.

For achieving the above object, the invention provides intelligently guiding cut-in method in a kind of multi-media transmission system, described method comprises:

Step one: define new guiding access bootstrapping signaling, support the data encapsulation centered by IP and transmission;

Step 2: based on the guiding access signaling of new definition, user finds corresponding service entrance, selects required service.

Compared with prior art, the present invention has following beneficial effect:

Have employed technical scheme of the present invention, can in the data encapsulation of (IP-centric) centered by IP and transmission system, the problem of relevant access information disappearance, by defining new pattern of the input signaling, provide a kind of guiding cut-in method, user effectively can be accessed, find the service needed for user.

Accompanying drawing explanation

By reading the detailed description done non-limiting example with reference to the following drawings, other features, objects and advantages of the present invention will become more obvious:

Fig. 1 is medium transmission system schematic diagram;

Fig. 2 is that multimedia system guides access signaling schematic diagram;

Fig. 3 is system model schematic diagram;

Fig. 4 is embody rule example 1 schematic diagram of the present invention;

Fig. 5 is embody rule example 2 schematic diagram of the present invention;

Fig. 6 is embody rule example 3 schematic diagram of the present invention;

Fig. 7 is the schematic diagram of another instantiation of the present invention.

Embodiment

Below in conjunction with specific embodiment, the present invention is described in detail.Following examples will contribute to those skilled in the art and understand the present invention further, but not limit the present invention in any form.It should be pointed out that to those skilled in the art, without departing from the inventive concept of the premise, some distortion and improvement can also be made.These all belong to protection scope of the present invention.

In order to support data encapsulation centered by IP and transmission, need to define new guiding access (bootstrapping) signaling, as shown in Figure 2.Based on this signaling, user can find corresponding service entrance, selects required service.

In actual applications, we need to support various different access way, different application examples.For this reason, guide access to be necessary, corresponding signaling content also can be various, and object is exactly to allow user find service entrance.We are with regard to some conventional access modules below, provide corresponding cut-in method.

A kind of access module is: after user's Received signal strength, find electric program menu (in different systems, different names may be had, such as electronicserviceguideline, serviceannouncement) entrance, service (or being program) needed for being selected by electric program menu and its visit information, then start access services.

For this pattern, we define signaling below.By the signaling of this new definition, user directly can find the entrance of electric program menu.

1. guide access signaling

The particular content of this signaling and form can be various, but object is one, finds the entrance of electric program menu exactly.

The position of this signaling also can be various, is such as placed in the input data format of new definition.Different selections can be had about input data format.The position guiding access signaling also can be various.If such as in Fig. 2, a new definition L2 layer (data link layer), this signaling can put into the content payload of L2 layer as the content of a type (type:signaling).If or by pattern of the input process, IP data directly being encapsulated and is bundled in physical layer, so can defining a kind of new content payload type (type:signaling) for transmitting new signaling in base band frame format: guide access signaling.Meanwhile, this signaling is placed on certain specific position, and in such as public physical layer pipe (commonPLP), user, once access is all be indicated to this frequency, this PLP resolves signaling; Also can be placed on multiple even each PLP, so user is at will from which pipeline, and in which frequency, access can obtain this signaling.Even such as in certain area, this signaling is at certain corresponding pipeline, or in bag, on session, so this information also can be provided by signaling.

Here is an example.

Table 1:

Header type	header extension	Payload
			0x01	0x01:bootstrapping	Bootstrapping_info

Here by headertype, being such as defined as after 0x01 explanation is signaling data.

By headerextension, dissimilar signaling data can be defined.Such as 0x01 can be defined as guiding access signaling.

Concrete signaling content form also can be various, for different transmission systems.But object is the same, by this signaling, user/terminal can find electronic service menu (or being information on services) entrance.

Because electronic service menu can have different transmission meanss, these methods can be used alone, and also can be combined:

-pass through broadcasting transmitting

√ is transmitted by certain IPsession, so can be found by IP address/port mouth

√ puts into inside certain MMTpackage and transmits, and can be found by the packet_id of MMT

If √ physical layer uses physical layer pipe PLP, so electronic service menu at which PLP transmits, and can be found by its corresponding PLP_id

The corresponding RF frequency of √, geographical location information (such as network_id, cell_id), also can provide.

-pass through point-to-point transmission

√ electronic service menu address, such as URL

Fig. 3 is a system model schematic diagram.The entrance of the electronic service menu guiding access signaling to provide.For different situations, this signaling information can have different positions, and electronic service menu also can be local in difference, so the relation between them is flexibly.For different situations, different access information is corresponding to be provided, thus make user/terminal access wherefrom can successful access to access information, find electronic service menu.

The particular content of signaling and form can be changeable, provide some examples below.

Table 2:Bootstrapping_info

It is guide access information table that Table_id indicates this.

Version_number defines the version number guiding access information table.

Table_length specifies the length of this table.

IP_version_flag indicates used IP version here, and 0 represents IPv4, and 1 indicates IPv6.

Entry_point_source_IP_address indicates entrance source IP address.

Entry_point_destination_IP_address denotes the IP destination address of entrance.

Entry_point_destination_port denotes the port numbers of entrance.

Bootrappping_entry_point_type specifies the type guiding access entrance.0 represents that entrance is in broadcast channel; 1 represents in entrance duplex channel, obtains as by request URL; 2 represent that broadcast and duplex channel can obtain.

Mmtp_package_id denotes the mmtp packet id of carrying service entrance.

PLP_id entrance place PLPID

Frequency entrance place RF frequency

Network_id entrance place network ID

Cell_id entrance place community ID

Entry_point_address_length specifies the length of entry address.

Entry_point_address denotes entry address.

Not all parameter all must occur, can provide according to embody rule correspondence.

Table 2 is bootstrapping_info of a kind of version, if guide entrance to have a lot of, also can be defined as follows version:

Table 3:

Wherein Num_of_broadcast_entry_point is the quantity of broadcast access entrance.

Num_of_interactive_entry_point is the quantity of duplex channel access entrance.

Other meaning of parameters occurred are identical with table 2, no longer repeat.

2. guide access step

Based on the guiding access signaling of new definition, user can find information on services entrance flexibly by different modes.Be given in the different cut-in methods under different scene below.

2.1 examples 1

As shown in Figure 4.

After user's accessing broadcast signal, analytic signal access L2 signaling (here for L2 signaling, not getting rid of signaling in other position)

User, by guiding access table in L2 signaling, finds information on services access information mmtp_packet_id.

Customer analysis MMTP wraps, and is found the bag of carrying top signaling by packet header type information.Corresponding MPT_message is found again by message_id.

The packet_id of carrying services menu information is found by inquiry, extremely corresponding MMT_general_location_info in MPT_message, thus the positional information and the visit information that obtain information on services.

According to this position and visit information, thus find the MMT bag of carrying services menu information

By access services menu information, select required service, and obtain the visit information of selected service.

The selected service of access.

2.2 examples 2

As shown in Figure 5.

As example 1, first user accesses the guiding access table in L2 signaling, and current access information, except there being mmtp_packet_id, also has corresponding IP address.Such user does not just need the visit information being found information on services by access top signaling, but directly finds the IPsession of carrying information on services, and corresponding MMTP wraps.

2.3 examples 3

As shown in Figure 6, information on services not in current broadcast channel, but will be obtained by two-way channel.In this case, the address of entrance is guided to provide in guiding signaling.

Above-mentioned is a kind of situation, first finds service menu message entrance, thus starts access.

Another pattern, some operator wishes to retain original consumption mode, and start, enters certain channel, watch the program of this channel.

As shown in Figure 7.Here virtual channel (virtualchannel) is the channel that we watch.So here, guiding access signaling can provide following information:

-number of virtual channel

√PLP_ID

√ frequency

√ geographical position, as network_id, cell_id

So no matter when user's access, can know there is which channel, respective visit information.This signaling can be transmitted in each physical pipeline, also can be placed on common physical pipeline.Guiding access information in each physical pipeline only can transmit the information on this pipeline, also can transmit the access information on other pipeline.

If more detailed, can also provide:

-number of virtual channel

√ Event_id (or service_id)

√Packet_id

√IP_address

√PLP_ID

√ frequency

√ geographical position, as network_id, cell_id

The present invention can in the data encapsulation of (IP-centric) centered by IP and transmission system, the problem of relevant access information disappearance, by defining new pattern of the input signaling, provides a kind of guiding cut-in method, user effectively can be accessed, find the service needed for user.

Above specific embodiments of the invention are described.It is to be appreciated that the present invention is not limited to above-mentioned particular implementation, those skilled in the art can make various distortion or amendment within the scope of the claims, and this does not affect flesh and blood of the present invention.

Claims (3)

1. an intelligently guiding cut-in method in multi-media transmission system, is characterized in that, described method comprises:

Step one: define new guiding access bootstrapping signaling, support the data encapsulation centered by IP and transmission;

Step 2: based on the guiding access signaling of new definition, user finds corresponding service entrance, selects required service.

2. intelligently guiding cut-in method in multi-media transmission system according to claim 1, is characterized in that, described guiding access signaling, is defined as follows:

It is guide access information table that Table_id indicates this;

Version_number defines the version number guiding access information table;

Table_length specifies the length of this table;

IP_version_flag indicates used IP version here, and 0 represents IPv4, and 1 indicates IPv6;

Entry_point_source_IP_address indicates entrance source IP address;

Entry_point_destination_IP_address denotes the IP destination address of entrance;

Entry_point_destination_port denotes the port numbers of entrance;

Bootrappping_entry_point_type specifies the type guiding access entrance: 0 represents that entrance is in broadcast channel; 1 represents in entrance duplex channel, obtains as by request URL; 2 represent that broadcast and duplex channel can obtain;

Mmtp_package_id denotes the mmtp packet id of carrying service entrance;

PLP_id entrance place PLPID;

Frequency entrance place RF frequency;

Network_id entrance place network ID;

Cell_id entrance place community ID;

Entry_point_address_length specifies the length of entry address;

Entry_point_address denotes entry address;

The not all parameter of parameter in above-mentioned table 2 all must occur, can provide according to embody rule correspondence.

3. intelligently guiding cut-in method in multi-media transmission system according to claim 1, is characterized in that, if guide entrance to have a lot of, described guiding access signaling is defined as follows:

Wherein Num_of_broadcast_entry_point is the quantity of broadcast access entrance;

Num_of_interactive_entry_point is the quantity of duplex channel access entrance.