CN102905218B - A kind of broadcast service data transmission method - Google Patents
A kind of broadcast service data transmission method Download PDFInfo
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- CN102905218B CN102905218B CN201110225679.0A CN201110225679A CN102905218B CN 102905218 B CN102905218 B CN 102905218B CN 201110225679 A CN201110225679 A CN 201110225679A CN 102905218 B CN102905218 B CN 102905218B
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Abstract
The invention discloses a kind of broadcast service data transmission method, this method includes：BM SC send MBMS data and give MBMS GW, and the packet is containing the station location marker where data；The base station that MBMS GW are sent the data in IP Multicast groups；Filtered according to the data of diverse geographic location of the station location marker to receiving by UE or filtered according to the data of diverse geographic location of the station location marker to receiving by base station or the data of diverse geographic location are filtered according to station location marker by MBMS GW or directly the data of diverse geographic location filtered by BM SC, so that UE can receive the data required for itself.Using broadcast service data transmission method of the present invention, a business can be realized in the different content of identical MBSFN regional broadcasts.
Description
Technical field
The present invention relates to wireless communication technology field, more particularly to a kind of broadcast service data transmission method.
Background technology
Fig. 1 is the system architecture diagram of System Architecture Evolution (SAE), wherein, user equipment (UE) 101 is for receiving data
Terminal device；Evolved universal terrestrial radio access network (E-UTRAN) 102 is Radio Access Network, is carried including for UE
Macro base station (eNodeB/NodeB) for accessing radio network interface；Mobile management entity (MME) 103 is responsible for UE movement
Context, session context and security information；Gateway (SGW) 104 mainly provides the function of user plane, the Hes of MME 103
SGW 104 is likely to be at same physical entity；Grouped data network gateway (PGW) 105 is responsible for the functions such as charging, Lawful Interception,
Same physical entity can also be in SGW 104；"Policy and Charging Rules Function entity (PCRF) 106 provides service quality
(QoS) strategy and charging criterion.Universal grouping wireless business supporting node (SGSN) 108 is UMTS (UMTS)
In for data transmission provide route apparatus for network node；Home subscriber server (HSS) 109 is UE local ownership subsystem
System, being responsible for protection includes the packet of the current location of user equipment, the address of service node, user security information, user equipment
The user profile such as data context.
In order to effectively utilize air interface resource, some mobile communication businesses are supplied to use in a manner of broadcasting with multicast
Family, this business are referred to as multimedia broadcast-multicast service (MBMS, MultimediaBroadcast and Multicast
Service).Each MBMS provides business in the coverage of oneself, each cell in coverage, has special
Control channel transmits MBMS signalings, and for this control channel MCCH, each MBMS has a service identification TMGI.
MCE in E-UTRAN is MBMS controlled entities.According to the difference of MCE positions, MBMS has two kinds of deployment way, sees
Shown in Fig. 2.In the figure on the left side, MCE is one can control multiple base stations independently of the entity outside base station, a MCE.The right
Figure in, MCE is located on base station, and MCE controls a base station.BM-SC is that multimedia broadcast-multicast service provides center,
MBMS data is sent to MBMS-GW from BM-SC, and MBMS-GW is a logical node, however not excluded that and it is other network nodes,
MBMS-GW includes control plane and datum plane, and it is responsible for sending control signaling to MME between BM-SC and eNB, and
Broadcasting MBMS data bag gives the eNB that transmit data.It is M1 interfaces between MBMS-GW user planes and base station.Control signaling from
BM-SC is sent to MBMS-GW, is then sent to MCE by MME, and MCE retransmits control signaling to base station.Between MME and MCE
Interface be M3 interfaces, the interface between MCE and base station is M2 interfaces.
After the start of base station, MCE first will establish M2 interfaces, for the control signaling of transmission session.MBMS sessions
(Session) at the beginning of wanting, BM-SC sends session start request message and message is passed through MME to MBMS-GW, MBMS GW
It is sent on MCE.MCE can first initiate UE number statistical processes, that is, send statistics request message and pass through aerial to base station, base station
Message is sent to UE by interface.If UE is in connection mode, and the MBMS to that will send is interested, and UE sends statistics and rung
Answer message.Then UE response message is collected in base station, it is known that the UE of how many connection mode is interested in MBMS, base station
UE numbers are reported to MCE.MCE collects the report of the base station in whole MBSFN regions, and according to UE data, MCE may decide that
The MBMS data transmission in activation/deactivation MBSFN regions.If activation transmission, MCE sends business and starts request message to base
Stand, then send Scheduling Information message to base station.Scheduling Information message contain air interface MBMS Control Channel configuration and
The configuration of the control information to be transmitted, i.e. MCCH and content.Base station in the air interface send MCCH, above bearer service mark.
Base station will be added in MBMS-GW multicast group, to establish the user plane of data transfer.
MBMS can be transmitted under single-carrier cell, and so, the carrier wave that different cells uses is different, on cell side
The user of edge can only listen to the MBMS of current area.But if adjacent cell is same with same carrier-wave transmission
MBMS, and transmit this MBMS in a synchronous manner, then edge can of the user in neighbor cell receives this
The superposition of two signal energies.Therefore, in the prior art, a continuous region is defined, it is each in this region
ENB transmits same MBMS signals using same carrier synchronization, to improve the MBMS quality of reception of user.This is continuous
Region be referred to as single frequency network (SFN, Single Frequency Network) region.SFN regions include one group of geography position
Continuous cell is put, these cells carry out synchronous transfer some specific MBMS using same Radio Resource.
In 3GPP Release 11, to introduce can be according to the position of oneself with the related positional information of business, UE
Information, decide whether to receive the decode business, this position is smaller than MBSFN scope.To same business, at one
MBSFN regions, there may be multiple different data contents broadcasting.
Positional information can be geographical position description, and geographical position describes the shape of geographic area.This shape is retouched
State meaningful to UE, UE needs to know the geographical position of oneself.GPS can be mounted with by UE oneself, if UE does not have
GPS is installed, eNB can transmit the geographical position of cell, or positional information can be described with one group of cell, and UE is with
Obtained cell ID corresponds to out the geographical position of oneself.In this case, positional information may be only accurate to cell.
If a business is in the different content of identical MBSFN regional broadcasts, the data transmission method defined at present
Inapplicable.
The content of the invention
In view of this, the invention provides a kind of broadcast service data transmission method, a business can be realized identical
The different content of MBSFN regional broadcasts.
A kind of broadcast service data transmission method, this method include：
Broadcast multicast services center BM-SC sends multimedia broadcast multicast service MBMS data and gives multimedia multicast broadcast service
Be engaged in gateway MBMS-GW, and packet contains station location marker；
MBMS-GW sends the data to the base station for being added to internet protocol multicast IP Multicast groups；
The data that base station broadcast receives, the data of broadcast are the data in multiple or all geographical position.
The present embodiment method is to be sent data to MBMS-GW, then by MBMS-GW by sending MBMS data by BM-SC
To the base station in IP Multicast groups, after base station is broadcasted the data received, by UE to the base station broadcast that receives
The data to come over are filtered, so that UE can select the data required for itself.
A kind of broadcast service data transmission method, this method include：
Broadcast multicast services center BM-SC sends multimedia broadcast multicast service MBMS data and gives multimedia multicast broadcast service
Be engaged in gateway MBMS-GW, and packet contains station location marker；
MBMS-GW sends the data to the base station for being added to internet protocol multicast IP Multicast groups；
Base station is selected from the data received is broadcasted with data corresponding to oneself geographical position.
The present embodiment method is to be sent data to MBMS-GW, then by MBMS-GW by sending MBMS data by BM-SC
To the base station in IP Multicast groups, base station is selected from the data received to be entered with data corresponding to oneself geographical position
Row broadcast, namely base station are first filtered to data.
A kind of method for supporting broadcast service data to transmit, this method include：
Broadcast multicast services center BM-SC sends multimedia broadcast multicast service MBMS data and gives multimedia multicast broadcast service
Be engaged in gateway MBMS-GW, and packet contains station location marker；
MBMS-GW is according to the station location marker that packet indicates to being added to internet protocol multicast IPmulticast groups
Corresponding base station selected transmission data；
The data that base station broadcast receives.
The present embodiment method is by sending MBMS data to MBMS-GW by BM-SC, by MBMS-GW according to station location marker
The data of diverse geographic location are filtered.
A kind of broadcast service data transmission method, this method include：
The multimedia multicast that broadcast multicast services center BM-SC sends diverse geographic location by different user planes is wide
Broadcast business MBMS data and give multimedia broadcast multicast service gateway MBMS-GW, packet contains station location marker；
MBMS-GW is according to the station location marker that packet indicates to being added to internet protocol multicast IPMulticast groups
Corresponding base station sends the data；
The data that base station broadcast receives.
The present embodiment method is by directly being filtered by BM-SC to the data of diverse geographic location, by different
User plane sends data to MBMS-GW, then the data of diverse geographic location are carried out being transmitted to corresponding base by MBMS-GW
Stand.
A kind of broadcast service data transmission method, this method include：
Broadcast multicast services center BM-SC sends session start request message and gives multimedia broadcast multicast service gateway
MBMS-GW, the session start request message include station location marker；
The session start request message is sent to mobile management entity MME by MBMS-GW；
MME sends the session start request message to multiple cell/multicast coordination entity MCE；
The session start request message is sent to the base station of multimedia broadcasting single frequency network MBSFN scopes by MCE.
The present embodiment method is to be filtered by the UE data to come to the base station broadcast received or docked by base station
What the data received were filtered, so that UE can select the data required for itself.
A kind of broadcast service data transmission method, this method include：
Broadcast multicast services center BM-SC sends session start request message and gives multimedia broadcast multicast service gateway
MBMS-GW, the session start request message include station location marker；
The session start request message is sent to mobile management entity MME by MBMS-GW；
MME sends the session start request message to multiple cell/multicast coordination entity MCE；
The session start request message is sent to corresponding to the station location marker included in session start request message by MCE
Base station.
The present embodiment method by MBMS-GW or BM-SC to data by being filtered.
As can be seen from the above technical solutions, broadcast service data transmission method provided by the invention, is by by BM-SC
Send session start request message and include station location marker to MBMS-GW, the session start request message；IP is added by base station again
Multicast user's groups, the user plane established between MBMS-GW；Finally by UE according to station location marker to receiving not
Data with geographical position are filtered or entered by base station according to the data of diverse geographic location of the station location marker to receiving
Row filtering or the data of diverse geographic location are filtered according to station location marker by MBMS-GW or direct by BM-SC
The data of diverse geographic location are filtered, so that UE can receive the data required for itself.Using the present invention
Described broadcast service data transmission method, a business can be realized in the different content of different MBSFN regional broadcasts.
Brief description of the drawings
Fig. 1 is existing SAE system architecture diagrams；
Fig. 2 is existing MBMS structural representations；
Fig. 3 is the schematic diagram of broadcast service data transmission method embodiment one of the present invention；
Fig. 4 is the workflow diagram of broadcast service data transmission method embodiment one of the present invention；
Fig. 5 is the schematic diagram of broadcast service data transmission method embodiment two of the present invention；
Fig. 6 is the workflow diagram of broadcast service data transmission method embodiment two of the present invention；
Fig. 7 is the schematic diagram of broadcast service data transmission method embodiment three of the present invention；
Fig. 8 is the workflow diagram of broadcast service data transmission method embodiment three of the present invention；
Fig. 9 is the schematic diagram of broadcast service data transmission method example IV of the present invention；
Figure 10 is the workflow diagram of broadcast service data transmission method example IV of the present invention.
Embodiment
In order to solve problem of the prior art, the specific implementation of scheme of the present invention includes：
BM-SC sends session start request message and includes station location marker to MBMS-GW, the session start request message；
The session start request message is sent to MME by MBMS-GW；MME sends the session start request message to MCE；MCE is sent out
The session start request message is sent to all base stations in MBSFN regions；Base station adds IP Multicast user's groups, establishes
User plane between MBMS-GW；BM-SC sends packet to MBMS-GW, and packet is forwarded to being added to by MBMS-GW
The base station of the IP Multicast groups of this business, UE is sent the data to by base station, UE wants to connect according to station location marker selection
The data of the station location marker of receipts, or,
BM-SC sends session start request message and includes station location marker to MBMS-GW, the session start request message；
The session start request message is sent to MME by MBMS-GW；MME sends the session start request message to MCE；MCE will
The session start request message is sent to the base station corresponding to the station location marker included in session start request message；Base station adds
Enter IP Multicast user's groups, the user plane established between MBMS-GW；BM-SC sends packet to MBMS-GW, by
MBMS-GW forwards base station of the packet to the IP Multicast groups for being added to this business, by it is base station selected go out with the base station
The data packet broadcast of position correspondence to UE, or,
BM-SC sends session start request message and includes station location marker to MBMS-GW, the session start request message；
The session start request message is sent to MME by MBMS-GW；MME sends the session start request message to MCE；MCE will
The session start request message is sent to the base station corresponding to the station location marker included in session start request message, and described
The data receiver tunnel number (DL TEID) that MCE is base station distribution is included in session start request message；MCE are distributed for base station
DL TEID and station location marker between corresponding relation be sent to MME；MME is by pair between the DL TEID and station location marker
It should be related to and be sent to MBMS-GW；Base station adds IP Multicast user's groups, the user plane established between MBMS-GW；
BM-SC sends packet to MBMS-GW, by the station location marker in MBMS-GW parsings packet header, and according to the DL TEID of distribution and position
Data are forwarded a packet to the base station corresponding to DL TEID by the corresponding relation put between mark, and UE is sent the data to by base station, or
Person,
For the data of diverse geographic location, BM-SC sends session start request message to MBMS-GW, the session respectively
Start request message and include station location marker, MBMS-GW is that different geographic position datas is assigned with different data receiver tunnels
Number, i.e., different user planes is established between BM-SC；The session start request message is sent to MME by MBMS-GW；
MME sends the session start request message to MCE；The session start request message is sent to session start request by MCE
The base station corresponding to station location marker included in message, and be base station distribution comprising MCE in the session start request message
Data receiver tunnel number (DL TEID)；MCE is the correspondence between the DL TEID and the station location marker of the base station distributed for base station
Relation is sent to MME；Corresponding relation between the DL TEID and station location marker is sent to MBMS-GW by MME；Base station adds
IP Multicast user's groups, the user plane established between MBMS-GW；BM-SC sends packet to MBMS-GW, by
MBMS-GW is according to need not parse packet header control information, but according to different reception data tunnels number, and according to the DL of base station
Data are forwarded a packet to the base station corresponding to DL TEID by the corresponding relation between TEID and station location marker, are sent out data by base station
Give UE.
In order that the object, technical solutions and advantages of the present invention are clearer, below in conjunction with the accompanying drawings with specific embodiment pair
The present invention is described in detail.
Embodiment one
The present embodiment one is by the user data in all/multiple geographical position of base station broadcast, and then selects oneself by UE
Data interested.Because the data that UE is received are not related with UE current location, therefore, UE can be certainly in the present embodiment
Selected to receive user data by ground.The method schematic diagram shown in Fig. 3 is for details, reference can be made to, as shown in figure 3, this method includes：
Step 301：BM-SC sends MBMS data and contains station location marker to MBMS-GW, packet；
Step 302：MBMS-GW sends the data to the base station for being added to this IP Multicast group；
Step 303：The base station broadcast data, the data of broadcast can include the number in multiple or all geographical position
According to.
So far, i.e., the broadcast service data transmission described in the present embodiment can be realized, specific workflow can be found in figure
4.As shown in figure 4, the present embodiment method comprises the following steps：
Step 401：BM-SC sends session start request message to MBMS-GW.
In this step, session start request message indicates MBMS and will started, and provides MBMS sessions
Attribute information, service identification TMGI, IPmulticast address of the message package containing MBMS, Qos information, MBMS scope letter
Breath, session identification, session persistence, MBMS control node information, the minimum time for waiting first packet to send.
It should be noted that the session start request message also includes station location marker.For station location marker, this position
Mark is included in MBMS data bag, has shorter information to illustrate specific positional information, such as can be LI-1 etc.；Position
Put mark and corresponded to specific positional information, this corresponding relation can be pre-configured on each MBMS transmission node, example
Such as disposed in MBMS-GW, MCE, on base station, or, this corresponding relation is disposed on BM-SC in message, is passed through by BM-SC
Session start request message is carried on each MBMS transmission node.If it is corresponding to carry this by session start request message
Relation, that message also need to include specific positional information, specific positional information, can be tool as described by background knowledge
The description in the geographical position of body, or the description for one group of cell, or other descriptions, for example, one group of Routing Area mark
Know (RAI), or one group of Service Area Identification (SAI), station location marker and more specific location information are one-to-one.
It should be noted that in this step, the session start request message can include multiple station location markers and multiple
The specifying information of position, it is defined by the realization for not influenceing the embodiment of the present invention.
Step 402：MBMS-GW sends session start response message to BM-SC.
The tunnel number (DL TEID) that the message package receives containing downlink data, for confirming that MBMS-GW have received session start
Request message.
Step 403：MBMS-GW forwards session start request message to MME.
Step 404：MME sends session start request response to MBMS-GW, to have acknowledged receipt of session start request
Message.
Step 405：MME sends session start request message to MCE.
In this step, the content synchronization rapid 401 and 403 that session start request message includes, is repeated no more here.
Step 406：MCE sends session start response message to MME, to confirm that MCE have received session start request message.
Step 407：MCE sends session start request message to all base stations in MBSFN regions.
The content that session start request message includes in this step also with step 401 and 403, repeats no more.
It should be noted that in this step, MCE has been sent to message all base stations in MBSFN regions.
Step 408：Base station sends session start response message to MCE to have acknowledged receipt of session start request message.
Step 409：MCE initiates user's statistic processes.
User's statistic processes is in connection mode the and desired UE for receiving MBMS data for statistics.The statistical method co-occurrence
There is technology, repeat no more here.
It should be noted that the operation of this step is carried out after 407 steps or before 407 steps.
Step 410：MCE sends MBMS schedule informations and configures message to base station.
The information to be transmitted on information configuration MCCH, configuration information of the message package containing MBSFN sub-frame, PMCH match somebody with somebody
The MBMS marks that confidence is ceased and PMCH is carried above.
Further, the message also includes station location marker corresponding to this business.
Step 411：Base station sends MBMS schedule information configuration response message to MCE.
Step 412：Base station sends MBMS and starts request message to UE, is configured by the MBMS carried on MCCH channels
Information notifies UE.
Carried above the configuration information and PMCH that MBMS configuration information includes the configuration information of MBSFN sub-frame, PMCH
MBMS mark.Service configuration information also includes the mark of positional information.
Step 413：Base station adds IP Multicast user's groups, to establish the user plane between MBMS-GW.
Step 414：BM-SC sends packet to MBMS-GW, and then MBMS-GW forwards packet to being added to this industry
All base stations of the IP Multicast groups of business, UE, the data of UE selection correspondence position marks are sent the data to by base station.
In this step, all packets received of base station broadcast, packet include packet header and carry having for MBMS data
Load two parts are imitated, packet header contains some control information, and base station is according to these control information come the data transfer that synchronizes.
Except the control information of existing definition, the control information further comprises station location marker, indicate which ground is payload be for
Manage position.Station location marker and the corresponding relation of specific positional information can be pre-configured in each MBMS nodes, Huo Zhecong
BM-SC is transferred to each MBMS nodes.
UE is interested in the business tine in some geographical position, and by the MBMS configuration information of base station broadcast, UE is obtained
Arrive and identified corresponding to geographical position.Or the mark is obtained by other methods, such as obtained by registration process.UE is parsed
The control information in packet header, the station location marker included by packet header, UE judge whether this bag contains UE geographical position interested
Corresponding business tine.For example UE is interested in Cell-1 content, UE parsing header control informations are arranged to LI-1 data
Bag, with regard to oneself data interested can be obtained.
Another method is base station the data configuration of diverse geographic location on different wireless channels, or same
On individual channel, transmit different at the time of, UE obtains UE geography interested by the MBMS configuration information of base station broadcast
Channel configuration corresponding to the data of position, receive data on corresponding channel herein.
So far, that is, the whole workflow of the broadcast service data transmission described in the present embodiment has been obtained.
The method of embodiment one is to allow UE to select oneself data interested, this method require base station broadcast it is all/
The user data in multiple geographical position, in general, user is only to the feedback corresponding to current location, therefore embodiment one
Method waste the resource of air interface.
Embodiment two
The present embodiment method is that user data corresponding to the geographical position of the base station is only broadcasted as base station, be for details, reference can be made to
Method schematic diagram shown in Fig. 5.As shown in figure 5, this method includes：
Step 501：The data that BM-SC sends MBMS contain station location marker to MBMS-GW, packet；
Step 502：MBMS-GW sends the data to the base station for being added to this multicast group..
Step 503：Select in the data that base station is fallen from reception and broadcasted with data corresponding to oneself geographical position.
In this step, base station broadcast business datum, the data of broadcast are only included with corresponding to this base station geographic position
Data, i.e. base station need to select from data with data broadcasting corresponding to oneself geographical position.
So far, i.e., the broadcast service data transmission described in the present embodiment can be realized, specific workflow can be found in figure
6.As shown in fig. 6, the present embodiment method comprises the following steps：
Step 601：BM-SC sends session start request message to MBMS-GW.
With as step 401, in this step, session start request message, which indicates MBMS, to be started, and
The attribute information of MBMS sessions, IPmulticast address of the message package containing MBMS, Qos information, MBMS scope letter are provided
Breath, session identification, session persistence, MBMS control node information, the minimum time for waiting first packet to send.
It should be noted that the session start request message also includes station location marker.For station location marker, this position
Mark is included in MBMS data bag, has shorter information to illustrate specific positional information, such as can be LI-1 etc.；Position
Put mark and corresponded to specific positional information, this corresponding relation can be pre-configured on each MBMS transmission node, example
Such as disposed in MBMS-GW, MCE, on base station, or, this corresponding relation is disposed on BM-SC in message, is passed through by BM-SC
Session start request message is carried on each MBMS transmission node.If it is corresponding to carry this by session start request message
Relation, that message also needs to include specific positional information, specific positional information, can be tool as described by background knowledge
The description in the geographical position of body, or the description for one group of cell, or other descriptions are for example, one group of Tracking Area Identifier
(RAI), or one group of Service Area Identification (SAI), station location marker and more specific location information are one-to-one.
It should be noted that in this step, the session start request message can include multiple station location markers and multiple
The specifying information of position, it is defined by the realization for not influenceing the embodiment of the present invention.
Step 602：MBMS-GW sends session start response message and receives tunnel mark containing downlink data to BM-SC, message package
Know, the message authentication have received session start request message.
Step 603：" session start request message is to MME for MBMS-GW transmissions.
Similarly, in this step, session start request message also includes MBMS IP multicast addresses, Qos letters
Breath, MBMS range information, session identification, session persistence, the minimum time for waiting first packet to send.
Further, specifying information of the session start request message also comprising station location marker and position.
Step 604：MME sends session start response message to MBMS-GW, is disappeared with having acknowledged receipt of session start request
Breath.
Step 605：MME sends session start request message to MCE.
The session start request message also includes MBMS IP multicast addresses, Qos information, MBMS scope letter
Breath, session identification, session persistence, the minimum time for waiting first packet to send, and station location marker, the tool of position
Body information.
Step 606：MCE sends session start response message to MME, please to have acknowledged receipt of the session start of MME transmissions
Seek message.
Step 607：The specific positional information that MCE starts to include in request message by message session, if do not wrapped
Containing specific positional information, station location marker that MCE starts to include in request message by message session, by being pre-configured in
The corresponding relation of station location marker and specific positional information on MCE, find corresponding to session start request sent behind base station disappear
Cease to corresponding base station.
The session start request message also includes MBMS IP multicast addresses, Qos information, MBMS scope letter
Breath, session identification, session persistence, the minimum time for waiting first packet to send, and station location marker, the tool of position
Body information.
Step 608：Base station sends session start response message to MCE to have acknowledged receipt of session start request message.
Step 609：MCE initiates user's statistic processes.
In this step, user's statistic processes is in connection mode the and desired UE for receiving MBMS data for statistics.Its
Specific statistical method has been prior art, is repeated no more.
It should be noted that the operation of this step is carried out after step 607 or before step 607.
Step 610：MCE sends MBMS schedule informations and configures message to base station.
The information to be transmitted on information configuration MCCH, the configuration of the message package configuration information containing MBSFN sub-frame, PMCH
The MBMS marks that information and PMCH are carried above.Further, the message also includes station location marker corresponding to this business.
Step 611：Base station sends MBMS schedule information configuration response message to MCE.
Step 612：Base station sends session start information to UE, is led to by the MBMS configuration information for updating MCCH carryings
Know UE.
Carried above the configuration information and PMCH that MBMS configuration information includes the configuration information of MBSFN sub-frame, PMCH
MBMS mark.Configuration information also includes station location marker.
Step 613：Base station adds IP Multicast user's groups, to establish the user plane between MBMS-GW, and
User data is sent on the time of user plane instruction.
Step 614：BM-SC sends packet to MBMS-GW, and then MBMS-GW forwards packet to being added to this industry
The base station of the IP Multicast groups of business, the data required for corresponding UE are sent to UE as base station.
So far, that is, the whole workflow of broadcast service data transmission method described in the present embodiment is completed.From above-mentioned stream
Journey can be seen that in the present embodiment, if MBMS sends different contents in different zones, but they share an IP
Multicast addresses, the base station of different zones have all been added to this IP Multicast group, therefore, when MBMS-GW sends number
According to bag when going out, it sends business data packet to all base stations for being added to IPMulticast groups, does not differentiate between these business
It is which position be directed to.Wherein packet includes packet header and payload two parts, packet header contain control information, effectively carries
Lotus contains business datum, and control information contains station location marker, indicates payload for which position.Mark position
Know and the corresponding relation of specific positional information can be pre-configured in each MBMS nodes, or be transferred to from BM-SC each
MBMS nodes.When base station receives packet, the station location marker in control information by checking packet, according to station location marker
With the corresponding relation of specific positional information, judge whether specific position contains the base station corresponding to the packet, if
It is to retain this packet, if not, abandoning the packet.Then packet is sent to UE by air interface.
Embodiment three
The present embodiment methods described is the base station that the data of diverse location information are sent to correspondence position by MBMS-GW,
It for details, reference can be made to the method schematic diagram shown in Fig. 7.As shown in fig. 7, this method includes：
Step 701：The data that BM-SC sends MBMS contain station location marker to MBMS-GW, packet；
Step 702：MBMS-GW is according to the station location marker that packet indicates to pair for being added to this IPmulticast group
The base station answered sends the data.
Wherein, the base station of diverse geographic location has used different data receiver tunnels number, and MBMS-GW refers to according to packet
Data are issued corresponding base station by the station location marker shown；
Step 703：Base station broadcast is with data corresponding to this base station geographic position.
The business datum that base station broadcast receives, the data received are with data corresponding to this base station geographic position.
So far, i.e., the broadcast service data transmission described in the present embodiment can be realized, specific workflow can be found in figure
8.As shown in figure 8, the present embodiment method comprises the following steps：
Step 801：BM-SC sends session start request message to MBMS-GW.
With as step 401, in this step, session start request message, which indicates MBMS, to be started, and
The attribute information of MBMS sessions, IPmulticast address of the message package containing MBMS, Qos information, MBMS scope letter are provided
Breath, session identification, session persistence, MBMS control node information, the minimum time for waiting first packet to send.
It should be noted that specifying information of the session start request message also comprising station location marker and position.For position
Put for mark, can be LI-1 etc.；Can be Cell-1 to Cell-100 etc. for the specifying information of position.
It should be noted that in this step, the session start request message can include multiple station location markers and multiple
The specifying information of position, it is defined by the realization for not influenceing the embodiment of the present invention.
Step 802：MBMS-GW sends session start response message to BM-SC, is disappeared with having acknowledged receipt of session start request
Breath, the tunnel number that message package receives containing downlink data.
Step 803：MBMS-GW sends session start request message to MME.
Similarly, in this step, session start request message also includes MBMS IP multicast addresses, Qos letters
Breath, MBMS range information, session identification, session persistence, the minimum time for waiting first packet to send.
It should be noted that the session start request message also includes station location marker.For station location marker, this position
Mark is included in MBMS data bag, has shorter information to illustrate specific positional information, such as can be LI-1 etc.；Position
Put mark and corresponded to specific positional information, this corresponding relation can be pre-configured on each MBMS transmission node, example
Such as disposed in MBMS-GW, MCE, on base station, or, this corresponding relation is disposed on BM-SC in message, is passed through by BM-SC
Session start request message is carried on each MBMS transmission node.If it is corresponding to carry this by session start request message
Relation, that message also need to include specific positional information, specific positional information, can be tool as described by background knowledge
The description in the geographical position of body, or the description for one group of cell, or other descriptions, for example, one group of Routing Area mark
Know (RAI), or one group of Service Area Identification (SAI), station location marker and more specific location information are one-to-one.
Step 804：MME sends session start response message to MBMS-GW, is disappeared with having acknowledged receipt of session start request
Breath.
Step 805：MME forwards session start request message to MCE.
Step 806：MCE sends session start response message to MME, to have acknowledged receipt of session start request message.
Step 807：The specific positional information that MCE starts to include in request message by message session, find corresponding
Base station；If not including specific positional information, the station location marker that MCE starts to include in request message by message session,
By the station location marker and the corresponding relation of specific positional information being pre-configured on MCE, sent after finding corresponding base station
Session start request message gives corresponding base station.
The session start request message also includes MBMS IP multicast addresses, Qos information, MBMS scope letter
Breath, session identification, session persistence, the minimum time for waiting first packet to send, and station location marker, the tool of position
Body information.
Further, in this step, MCE is that different data receiver tunnels number is distributed in base station according to station location marker.Position
To put mark identical base station and be allocated identical DL TEID, the different base station of station location marker is allocated different DL TEID, and
And MCE is included in the DL TEID distributed in session start request message and is sent to base station.
Step 808：Base station sends session start response message to MCE, to have acknowledged receipt of session start request message.
Step 809：MCE initiates user's statistic processes.
User's statistics is in connection mode the and desired UE for receiving MBMS data for statistics.It uses existing statistics side
Method, repeat no more.
It should be noted that the operation of this step is carried out after step 807 or before step 807.
Step 810：MCE sends MBMS schedule informations and configures message to base station.
MBMS schedule informations configure the message arrangement information to be transmitted on MCCH, match somebody with somebody confidence comprising MBSFN sub-frame
The MBMS marks that breath, PMCH configuration information and PMCH are carried above.Further, the message also includes position corresponding to this business
Put mark.
Step 811：Base station sends MBMS schedule information configuration response message to MCE.
Step 812：Base station sends MBMS session starts information to UE, matches somebody with somebody confidence by the MBMS for updating MCCH carryings
Breath notice UE.
Carried above the configuration information and PMCH that MBMS configuration information includes the configuration information of MBSFN sub-frame, PMCH
MBMS mark.Configuration information also includes station location marker.
Step 813：Base station adds IP Multicast user's groups, to establish between MBMS-GW.
The step time of origin of user plane 813 is with 814 without absolute precedence relationship.
Step 814：Corresponding relation between the downlink tunnel number and station location marker distributed for base station is sent to MME by MCE,
The downlink tunnel number is the tunnel number that base station receives MBMS data.
Step 815：MME is sent to the corresponding relation between the downlink tunnel number and station location marker distributed for base station
MBMS-GW。
Step 816：BM-SC sends packet to MBMS-GW, and then MBMS-GW forwards packet to being added to this industry
The base station of the IP Multicast groups of business, the data required for corresponding UE are sent to UE as base station.
Packet includes packet header and payload two parts, and packet header includes control information, and packet header payload contains
MBMS data, control information contain station location marker, indicate payload for which position.Added in base station
When MBMS-GW IP Multicast groups, the base station of diverse location indicates different data receiver tunnels number, MBMS-
GW receives the tunnel number of data by the station location marker inside control information, and the station location marker of the above and base station, packet
It is forwarded to corresponding base station.
So far, that is, the whole workflow of broadcast service data transmission method described in the present embodiment is completed.
Example IV
The present embodiment is to be put down by BM-SC with establishing multiple users by different session establishment processes between MBMS-GW
Face, to transmit different data contents, it for details, reference can be made to the method schematic diagram shown in Fig. 9.As shown in figure 9, this method includes：
Step 901：BM-SC sent by different user plane the data of the MBMS of diverse geographic location to
MBMS-GW, packet contain station location marker.
In this step, the data of BM-SC transmissions MBMS are to MBMS-GW, and the data of diverse geographic location pass through
Different user planes is sent；
Step 902：MBMS-GW is according to the station location marker that packet indicates to pair for being added to this IPMulticast group
The base station answered sends the data.
In this step, MBMS-GW sends the data to the base station for being added to this IP Multicast group.Wherein, it is different
The base station in geographical position has used different data receiver tunnels number, and the station location marker that MBMS-GW indicates according to packet is number
According to issuing corresponding base station；
Step 903：Base station broadcast is received with data corresponding to this base station geographic position.
The business datum that base station broadcast receives, the data received are with data corresponding to this base station geographic position.
So far, i.e., the broadcast service data transmission described in the present embodiment can be realized, specific workflow can be found in figure
10.As shown in Figure 10, the present embodiment method comprises the following steps：
Step 1001：BM-SC sends session start request message to MBMS-GW.
With as step 401, in this step, session start request message, which indicates MBMS, to be started, and
The attribute information of MBMS sessions, IPmulticast address of the message package containing MBMS, Qos information, MBMS scope letter are provided
Breath, session identification, session persistence, MBMS control node information, the minimum time for waiting first packet to send.
It should be noted that the session start request message also includes station location marker.For station location marker, this position
Mark is included in MBMS data bag, has shorter information to illustrate specific positional information, such as can be LI-1 etc.；Position
Put mark and corresponded to specific positional information, this corresponding relation can be pre-configured on each MBMS transmission node, example
Such as disposed in MBMS-GW, MCE, on base station, or, this corresponding relation is disposed on BM-SC in message, is passed through by BM-SC
Session start request message is carried on each MBMS transmission node.If it is corresponding to carry this by session start request message
Relation, that message also need to include specific positional information, specific positional information, can be tool as described by background knowledge
The description in the geographical position of body, or the description for one group of cell, or other descriptions, for example, one group of Routing Area mark
Know (RAI), or one group of Service Area Identification (SAI), station location marker and more specific location information are one-to-one.The message is only wrapped
Identified containing a geographical position, or, the message only identifies particular geographic location corresponding with its comprising a geographical position
Information.
Step 1002：MBMS-GW sends session start response message to BM-SC, to have acknowledged receipt of session start request
Message, and the message contains the DLTEID that MBMS-GW is this traffic assignments, because to different geographical position, BM-SC hairs
Multiple session establishment processes are played, to each conversation procedure, MBMS-GW distributes a DL TEID, i.e. MBMS-GW is differently
Manage the different DL TEID of the data distribution of position.
Step 1003：MBMS-GW sends session start request message to MME.
Similarly, in this step, session start request message also includes MBMS IP multicast addresses, Qos letters
Breath, MBMS range information, session identification, session persistence, the minimum time for waiting first packet to send.
Further, specifying information of the session start request message also comprising station location marker and position.
Step 1004：MME sends session start response message to MBMS-GW, has acknowledged receipt of session start request message.
Step 1005：MME sends session start request message to MCE.
The session start request message also includes MBMS IP multicast addresses, Qos information, MBMS scope letter
Breath, session identification, session persistence, the minimum time for waiting first packet to send, and station location marker, the tool of position
Body information.
Step 1006：MCE sends session start response message to MME, to have acknowledged receipt of session start request message.
Step 1007：The specific positional information that MCE starts to include in request message by message session, find corresponding
Base station；If not including specific positional information, the station location marker that MCE starts to include in request message by message session,
By the station location marker and the corresponding relation of specific positional information being pre-configured on MCE, sent after finding corresponding base station
Session start request message gives corresponding base station.
The session start request message also includes MBMS IP multicast addresses, Qos information, MBMS scope letter
Breath, session identification, session persistence, the minimum time for waiting first packet to send, and station location marker, the tool of position
Body information.
Further, in this step, MCE is that identical DLTEID, station location marker are distributed in station location marker identical base station
Different DL TEID are distributed in different base stations, and the DL TEID distributed are included in session start request message and sent
To base station, the DL TEID are used for receiving MBMS data.
Step 1008：Base station sends session start response message to MCE, to have acknowledged receipt of session start request message.
Step 1009：MCE initiates user's statistic processes.
User's statistic processes is in connection mode the and desired UE for receiving MBMS data for statistics.It uses existing system
Meter method, is repeated no more.
It should be noted that the operation of this step is carried out after step 1007 or before step 1007.
Step 1010：MCE sends MBMS schedule informations and configures message to base station.
MBMS schedule informations configure the information that message arrangement will be transmitted in MCCH, the message package matching somebody with somebody containing MBSFN sub-frame
The MBMS marks that confidence breath, PMCH configuration information and PMCH are carried above.Further, the message is also corresponding comprising this business
Station location marker.
Step 1011：Base station sends MBMS schedule information configuration response message to MCE.
Step 1012：Base station sends session start solicited message to UE, is configured by the MBMS for updating MCCH carryings
Information notifies UE.
Carried above the configuration information and PMCH that MBMS configuration information includes the configuration information of MBSFN sub-frame, PMCH
MBMS mark.Configuration information also includes station location marker.
Step 1013：Base station adds IP Multicast user's groups, to establish the user plane between MBMS-GW.
Step 1014：Corresponding relation between the DL TEID and station location marker distributed for base station is sent to MME by MCE.
Step 1015：Corresponding relation between the DL TEID and station location marker of distribution is sent to MBMS-GW by MME.
Step 1016：BM-SC sends packet to MBMS-GW, and the data of diverse location pass through different user planes
MBMS-GW is transferred to, MBMS-GW forwards base station of the packet to the IP Multicast groups for being added to this business, by base station
Data required for corresponding UE are sent to UE.
Because MBMS-GW is aware of the corresponding relation between DL TEID and station location marker, it is also known that being between BM-SC
The data of diverse location establish different user plane (i.e. MBMS-GW is assigned with different DL-TEID), and MBMS-GW just knows
The different user plane in road, therefore can be directly from difference with the corresponding relation between the TEID of base station down data receiver
The packet that user plane receives is transmitted to the base station of response, and then the MBMS data received is sent to UE by base station.
So far, that is, the whole workflow of broadcast service data transmission method described in the present embodiment is completed.
In a word, broadcast service data transmission method of the present invention, it is by sending MBMS data by BM-SC
To MBMS-GW, the packet is containing the station location marker where data；MBMS-GW is sent the data in IP Multicast groups
Base station；Filtered by UE according to the data of diverse geographic location of the station location marker to receiving or by base station according to its position
The data for putting diverse geographic location of the mark to receiving are filtered or the different receptions by MBMS-GW according to base station
Data tunnel station location marker is filtered to the data of diverse geographic location or by BM-SC directly to diverse geographic location
Data filtered so that UE can receive the data required for itself.Using broadcasting service of the present invention
Data transmission method, a business can be realized in the different content of identical MBSFN regional broadcasts.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
God any modification, equivalent substitution and improvements done etc., should be included within the scope of protection of the invention with principle.
Claims (4)
1. a kind of broadcast service data transmission method, it is characterised in that this method includes：
The base station for being added to internet protocol multicast IP multicast groups receives multimedia broadcast multicast service gateway MBMS-GW
The MBMS data bag that the station location marker selection indicated according to multimedia broadcast multicast service MBMS data bag is sent；Wherein, it is different
The MBMS data bag in geographical position uses different data receiver tunnels number, and the MBMS data bag is that the MBMS-GW is received
From broadcast multicast services center BM-SC, the MBMS data bag that the MBMS-GW is received includes the position where MBMS data bag
Put mark；
The data that base station broadcast receives.
2. according to the method for claim 1, it is characterised in that the station location marker is the description in specific geographical position,
It is either one group of cell ID or is one group of Tracking Area Identifier, or is one group of Service Area Identification.
3. method according to claim 1 or 2, it is characterised in that this method also includes：
The base station of multimedia broadcasting single frequency network MBSFN scopes receives session start from multiple cell/multicast coordination entity MCE please
Seek message；The session start request message is that broadcast multicast services center is sent to multimedia broadcast multicast service gateway
MBMS-GW, then mobile management entity MME is sent to by MBMS-GW, finally it is sent to MCE's by MME；The session start is asked
Message package contains station location marker.
4. according to the method for claim 3, it is characterised in that this method also includes：
The different multimedia broadcast-multicast service MBMS datas that the base station of diverse location receives MCE distribution receive tunnel number, and
And the corresponding relation between data receiver tunnel number and station location marker is sent to MME by MCE.
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| CN109450863B (en) * | 2015-07-28 | 2021-06-22 | 上海华为技术有限公司 | Data transmission method of edge MBMS service and related equipment |
| CN106488409B (en) * | 2015-08-29 | 2020-01-21 | 华为技术有限公司 | Method, device and system for unicast transmission of broadcast multicast data |
| CN109842535B (en) * | 2017-11-28 | 2021-12-28 | 华为技术有限公司 | Method and equipment for accessing local network |
| CN109168132A (en) * | 2018-07-03 | 2019-01-08 | 千寻位置网络有限公司 | Information identification and method of reseptance and device based on position control |
| TWI672960B (en) * | 2018-08-02 | 2019-09-21 | 財團法人資訊工業策進會 | Communication system, method and coordination entity for multimedia broadcast/multicast service |
| CN112929070B (en) * | 2019-12-06 | 2023-04-18 | 中移(上海)信息通信科技有限公司 | Data broadcasting system and method |
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