CN104093130A - Broadcast multicast service flow control method and related equipment thereof - Google Patents
Broadcast multicast service flow control method and related equipment thereof Download PDFInfo
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Abstract
The invention discloses a broadcast multicast service flow control method and related equipment thereof. The broadcast multicast service flow control method includes the steps that packet loss information of broadcast multicast service data flow is counted by a base station; when the counted packet loss information exceeds a preset threshold, the base station sends a flow control request to BMSC, and accordingly the BMSC can conduct flow control over the broadcast multicast service data flow conveniently. Compared with the prior art, the packet loss rate of broadcast multicast service data packets is lowered, and the service experience of users is improved.
Description
The application is that the divisional application that is 200910179903.X, the denomination of invention case that is " multicast broadcast service flow control methods and relevant device " as application number proposes.
Technical field
The present invention relates to communication technical field, be specifically related to multicast broadcast service flow control methods and relevant device.
Background technology
3G (Third Generation) Moblie has been introduced multimedia multicast broadcasting service (MultiMedia Broadcast Multicast Service, MBMS), realizes the mass-sending to weather forecast, news film, sports tournament collection of choice specimens content.
Prior art MBMS business provides process to be: when a new MBMS session at first, BMSC can send session by MBMS GW start message to MME, comprising information such as session identification, MBMS service identifications.MME forwards session and starts message to MCE, and MCE is the newly-increased reserved Radio Resource of MBMS business, and tells to all eNB under this MBSFN region.ENB tells UE to have new MBMS business to transmit by the radio resource control information (RRC) of RAN side, to this business, interested UE can feed back to eNB, and eNB determines whether add the ip multicast group of this MBMS business to carry out the transmission of this business according to user's feedback information.
In the research and practice process to prior art, the present inventor finds, MCE is for dynamic dispatching cycle (Dynamic Scheduling Period, DSP) configuration does not rely on the business datum of the concrete transmission of BMSC, this just likely causes within a dispatching cycle, need the packet of the business of scheduling to exceed the quantity of this dispatching cycle of the actual packet that can dispatch, especially in the time there is the transfer of data of burst MBMS business in certain period, can finally cause eNB to abandon the packet that cannot dispatch, thereby affect user's experience.
Summary of the invention
The embodiment of the present invention provides multicast broadcast service flow control methods and relevant device, can realize multicast and broadcast is carried out to flow control, reduces packet loss, promotes user's business experience.
A kind of multicast broadcast service flow control methods that the embodiment of the present invention provides, comprising:
Multicast broadcast service server B MSC receives the traffic resource assignment information that many cell multicasts coordination entity MCE sends;
According to described traffic resource assignment information, the data flow of multicast broadcast service is carried out to traffic shaping to realize flow control.
A kind of multicast broadcast service flow control methods that the embodiment of the present invention provides, comprising:
BMSC, according to MBMS quality QoS information, generates the defeated speed threshold value of data flow of multicast broadcast service;
According to described threshold value, the data flow of described multicast broadcast service is carried out to traffic shaping, to realize flow control.
A kind of multicast broadcast service flow control methods that the embodiment of the present invention provides, comprising:
BMSC obtains the business-binding speed ABBR of multiplexing multiple multicast broadcast service;
According to described ABBR, the data flow of multiplexing multiple multicast broadcast service transmission is carried out to traffic shaping, to realize flow control.
A kind of multicast broadcast service flow control methods that the embodiment of the present invention provides, comprising:
The packet loss information of base station statistics group broadcasting broadcast business data stream;
In the time that the packet loss information of described statistics exceeds preset thresholding, base station is to BMSC transmitted traffic control request, so that BMSC carries out flow control to group broadcasting broadcast business data stream.
A kind of multicast broadcast service flow control methods that the embodiment of the present invention provides, comprising:
The session that MCE receives BMSC starts request message;
MCE judges whether to support newly-increased MBMS business according to remaining MBMS Radio Resource,
If cannot support, MCE refusal is newly-increased MBMS traffic assignments Radio Resource, or substitutes the Radio Resource of existing MBMS business by newly-increased MBMS business.
A kind of multicast broadcast service flow control methods that the embodiment of the present invention provides, comprising:
MCE receives the QoS information that BMSC sends;
According to synchronizing sequence length SYNC sequence length and/or QoS information, the length of configuration cycle dynamics DSP, and the DSP length after adjusting is notified to the base station under broadcast multi-broadcasting single frequency network MBSFN region.
A kind of multicast broadcast service server that the embodiment of the present invention provides, comprising:
Information receiving unit, the traffic resource assignment information sending for receiving many cell multicasts coordination entity MCE;
Flow controlling unit, for carrying out traffic shaping to realize flow control according to described traffic resource assignment information to group broadcasting broadcast business data stream.
A kind of multicast broadcast service server that the embodiment of the present invention provides, comprising:
Threshold value setting unit, according to MBMS quality QoS information, generates the defeated speed threshold value of data flow of multicast broadcast service;
Flow controlling unit, for carrying out traffic shaping according to described threshold value to the data stream transmitting of described multicast broadcast service.
A kind of multicast broadcast service server that the embodiment of the present invention provides, comprising:
Speed selected cell, for obtaining the business-binding speed ABBR of multiplexing multiple multicast broadcast service;
Flow controlling unit, carries out traffic shaping for the data flow of the transmission to described data transmission channel according to described ABBR.
A kind of base station that the embodiment of the present invention provides, comprising:
Statistic unit, for adding up the packet loss information of group broadcasting broadcast business data stream;
Flow control request unit, in the time that the packet loss information of described statistics exceeds preset thresholding, to BMSC transmitted traffic control request, so that BMSC carries out flow control to group broadcasting broadcast business data stream.
Many cell multicasts of one coordination entity that the embodiment of the present invention provides, comprising:
Receiving element, starts request message for the session that receives BMSC;
Resource assignment control, for judging whether to support newly-increased MBMS business according to remaining MBMS Radio Resource, if cannot support, refusal is newly-increased MBMS traffic assignments Radio Resource, or substitutes the Radio Resource of existing MBMS business by newly-increased MBMS business.
Many cell multicasts of one coordination entity that the embodiment of the present invention provides, comprising:
Receiving element, receives the QoS information that BMSC sends;
Cycle adjusting unit, for according to synchronizing sequence length SYNC sequence length and/or QoS information, configures the length of cycle dynamics DSP, and the DSP length after adjusting is notified to the base station under broadcast multi-broadcasting single frequency network MBSFN region.The embodiment of the present invention provides multicast broadcast service flow control methods, in process, obtain related data by providing at multicast broadcast service, and according to the data of obtaining, multicast broadcast service stream is controlled, with respect to prior art, reduce the packet loss of group broadcasting broadcast business data bag, promoted user's business experience.
Brief description of the drawings
In order to be illustrated more clearly in the technical scheme in the embodiment of the present invention, below the accompanying drawing of required use during embodiment is described is briefly described, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the network architecture schematic diagram of prior art multicast broadcast service;
Fig. 2 is the flow chart of the embodiment of the present invention one multicast broadcast service flow control methods;
Fig. 3 is the flow chart of the embodiment of the present invention two multicast broadcast service flow control methods;
Fig. 4 is the flow chart of the embodiment of the present invention three multicast broadcast service flow control methods;
Fig. 5 is the signaling process figure of application examples one of the present invention;
Fig. 6 is the flow chart of the embodiment of the present invention four multicast broadcast service flow control methods;
Fig. 7 is the signaling process figure of application examples two of the present invention;
Fig. 8 is the flow chart of the embodiment of the present invention five multicast broadcast service flow control methods;
Fig. 9 is the signaling process figure of application examples three of the present invention;
The flow chart of Figure 10 embodiment of the present invention six multicast broadcast service flow control methods;
Figure 11 is the signaling process figure of application examples four of the present invention;
Figure 12 is the structural representation of the embodiment of the present invention seven multicast broadcast service servers;
Figure 13 is the structural representation of the embodiment of the present invention eight multicast broadcast service servers;
Figure 14 is the structural representation of the embodiment of the present invention nine multicast broadcast service servers;
Figure 15 is the structural representation of the embodiment of the present invention ten base stations;
Figure 16 is the structural representation of embodiment of the present invention cell multicast more than 11 coordination entity;
Figure 17 is the structural representation of embodiment of the present invention cell multicast more than 12 coordination entity.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiment.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtaining under creative work prerequisite, belong to the scope of protection of the invention.
Support general continental rise wireless access network (the Evolved Universal Terrestrial Radio Access Network of evolution, as shown in Figure 1, main entity and interface function are as follows for the network architecture schematic diagram of multicast broadcast service E-UTRAN):
Multicast broadcast service server (Broadcast Multicast Service Center, BMSC): obtain broadcast/multi broadcast business data for receiving from content supplier, be issued to each base station (eNB) by MBMS gateway (Gateway, GW).Premiere feature is to use the eNB transmission/broadcasting MBMS bag of synchronous (synchronization, SYNC) agreement to transport service.Use Internet protocol (Internet Protocol, IP) multicast protocol MBMS transmission user face data.
Many cell multicasts coordination entity (Multi-cell/multicast Coordination Entity, MCE) be a logic entity, do not get rid of the part that this entity is other network elements, this entity is given the eNB Resources allocation of all participations in broadcast multi-broadcasting single frequency network (Multicast/Broadcast single frequency network, MBSFN) transmission.Not only distribute running time-frequency resource, also comprise the details of determining radio configuration, such as modulation and encoding scheme.MCE only relates to MBMS session control signaling.There is not the mutual signaling of MCE and subscriber equipment (User Equipment, UE).
Multimedia broadcast-multicast service (the Evolved MultiMedia Broadcast Multicast Service of evolution, E-MBMS) broadcast multi-broadcasting single frequency network (Multicast/Broadcast single frequency network has been proposed, MBSFN) concept, adopt same frequency to send identical data in all communities simultaneously, this mode can greatly improve community entirety signal to noise ratio and distribute, greatly save valuable frequency resource, improve the availability of frequency spectrum, and can solve coverage hole problem with the way of penetrating that takes place frequently by multiple spot, obtain good coverage rate.
Embodiment mono-
A kind of multicast broadcast service flow control methods, flow chart as shown in Figure 2, comprising:
A1, multicast broadcast service server (BMSC) receives the traffic resource assignment information that many cell multicasts coordination entity MCE sends;
A2, carries out traffic shaping to realize flow control according to described traffic resource assignment information to group broadcasting broadcast business data stream.
Be appreciated that, the traffic resource assignment information that described BMSC receives the transmission of many cell multicasts coordination entity can comprise before: MCE carries out the distribution of multicast broadcast service Radio Resource according to service quality (Quality of Service, the QoS) information of obtaining from BMSC or the resource using information obtaining from base station.The described resource using information obtaining from base station comprises: on base station for the resource using information of clean culture or location service.
In the embodiment of the present invention, carrying out that the granularity of traffic shaping can be based on a certain business, can be also the multiple business (at least two business) based on carrying out service integration, and concrete described traffic resource assignment information can comprise:
The bit rate of a certain multicast broadcast service transmission; Or, the gross bit rate that carries out multiplexing multiple multicast broadcast service transmission; Or, the transmitted data amount of a certain multicast broadcast service in the dispatching cycle; Or, in the dispatching cycle, carry out the multiplexing total transmitted data amount of multiple multicast broadcast service.
In the embodiment of the present invention, traffic shaping generally refers to a certain MBMS business or carries out multiplexing multiple MBMS business and exceed the packet that can dispatch in the dispatching cycle and carry out buffer memory, and with dispatching follow-up dispatching cycle.Adopt the mode of delay dispatching, make the transmission of data flow can resource-based service condition and capacity of equipment allocate.
The embodiment of the present invention can also take situation or qos parameter carries out traffic shaping based on interface-free resources, referring to following embodiment bis-and three;
Embodiment bis-, takies the traffic shaping of situation based on interface-free resources;
A kind of multicast broadcast service flow control methods, flow chart as shown in Figure 3, comprising:
B1, BMSC, according to MBMS quality QoS information, generate the defeated speed threshold value of data flow of multicast broadcast service;
Be appreciated that, in the embodiment of the present invention, priority difference based on business, MBMS business can define different QoS information, QoS information can comprise many kinds of parameters, as time delay, shake, business guaranteed rate (Guaranteed Bit Rate, GBR) and maximum traffic transmission rate (Maximal Bit Rate, MBR) etc.
B2, according to described threshold value, the data flow of described multicast broadcast service is carried out to traffic shaping.
Obtain business guaranteed rate (Guaranteed Bit Rate, GBR) and maximum traffic transmission rate (Maximal Bit Rate, MBR) in QoS information;
And according to the defeated speed threshold value of data flow of GMR and MBR generation multicast broadcast service; Described threshold value is greater than business guaranteed rate, is less than maximum traffic transmission rate; The range of choice of described threshold value is generally selected between business guaranteed rate and maximum traffic transmission rate; When the traffic transmission rate of described multicast broadcast service exceedes described threshold value, transmission rate is adjusted to described threshold value the unnecessary packet of buffer memory.
Embodiment tri-, traffic shaping based on qos parameter;
A kind of multicast broadcast service flow control methods, flow process as shown in Figure 4, comprising:
C1, BMSC obtains the business-binding speed ABBR of multiplexing multiple multicast broadcast service;
Specifically obtain the process of the business-binding speed ABBR of multiplexing multiple multicast broadcast service and can take various ways, two kinds of feasible modes are provided below, be appreciated that following mode, only for the present invention gives an example, is not construed as limiting the invention.
Mode one, obtain the ABBR in the QoS information of described multiplexing multiple multicast broadcast service;
Mode two, calculate described ABBR according to GBR and MBR in the QoS information of each business in described multiplexing multiple multicast broadcast service.
C2, carries out traffic shaping according to described ABBR to the data flow of described multiplexing multiple multicast broadcast service.
In the embodiment of the present invention, for guarantee service quality (QoS), can, according to the OoS parameter of different multicast broadcast service, choose the transmission rate of corresponding business-binding; The mode of traffic shaping is referring to above-described embodiment one or two.
Above-described embodiment one to three technical scheme, BMSC is by the resource allocation information that reports according to MCE or according to the qos parameter of the interface-free resources condition information obtaining or business, group broadcasting broadcast business data stream is carried out to traffic shaping, control the transmission of data flow, reduce the packet loss of group broadcasting broadcast business data bag, promoted user's business experience.
Below in conjunction with concrete application scenarios, provide the method for a pair of embodiment of the present invention one to three of application examples to be described, signaling process figure shown in 5, comprising as shown in the figure:
In steps d 1-d3, BMSC arrives MCE by the QoS parameter (QoS) that carries traffic aided, ensures the information such as bit rate (GBR) and/or Maximum Bit Rate (MBR) comprising this business.MCE is this traffic assignments Radio Resource according to the service quality information of obtaining, as calculates the data volume that this business passes within a dispatching cycle.Implementation is, gets a value between GBR and the MBR transmission rate as this business according to interface-free resources situation, is made as x, and the length of dispatching cycle is y, and the Radio Resource of distribution is z.Computing formula is: z=x*y.
In steps d 4, MCE is the wireless resource configuration on eating dishes without rice or wine by conversation request message or this business of other M2 (between MCE and eNB) signaled eNB, comprising transmission channel, the order of business transmission etc. of transport service.
Steps d 5, eNB add ip multicast group, are mainly the transmission channels in order to set up the MBMS user's face between core net and Access Network.
The relevant information that steps d 6, eNB provide according to MCE is the scheduling that this business is carried out Radio Resource, and returns to session and start response message or other M2 signaling message to MCE.Step 5 and six does not have inevitable time relationship.
The resource obligate information that steps d 7-d9, MCE start to carry this business in response message in session is to BMSC, this obligate information can be the resource information (as the bit rate of the data volume/transmission of transmission) of distributing to this business in the dispatching cycle, also can be the resource information (as the bit rate of the data volume/transmission of transmission channel) of distributing to the transmission channel (MCH) at this business place in the dispatching cycle, or carry out the resource of multiple multicast broadcast service bindings of service integration.The transmitted data amount of business wherein or transmission channel or business-binding generally refers to the quantity of the packet of a dynamic dispatching periodic transfer, and in the time using this parameter, MCE also needs to tell the length in BMSC dynamic dispatching cycle.If the resource representation of business-binding for reserved resource information, MCE also needs to tell the business map information on the transmission channel of this business-binding of BMSC, on transmission channel, has which MBMS business.In addition, should use-case in, steps d 7 can directly just send, without the response message of by the time receiving steps d 6 after steps d 3.
The resource allocation information that steps d 10, BMSC provide according to MCE carries out the traffic shaping of MBMS business transmission, this traffic shaping can be broadcast multicast/broadcast service based on certain according to the instruction of steps d 9, can be also the multiple multicast broadcast service based on carrying out service integration.The mode of traffic shaping is that the resource obligate information that BMSC provides according to MCE is buffered in the packet that cannot dispatch a dispatching cycle, in follow-up dispatching cycle, the packet of buffer memory is dispatched.
The resource service condition that should use-case MCE can also report by each eNB is carried out resource reservation, implementation is, eNB can inform the resource service condition on this eNB of MCE by the conversational response message of steps d 6 or other M2 signaling message, wherein comprises the upper resource situation for clean culture or other purposes (as location service LCS, Relay) etc. of eNB.Steps d 7-d9, MCE determine how to carry out the resource distribution of wireless side by this information, and notice is to BMSC.Steps d 10, BMSC carry out traffic shaping according to above-mentioned information.
Embodiment tetra-,
A kind of multicast broadcast service flow control methods, flow chart as shown in Figure 6, comprising:
E1, the packet loss information of base station statistics group broadcasting broadcast business data stream;
E2, in the time that the packet loss information of described statistics exceeds preset thresholding, base station is to BMSC transmitted traffic control request, so that BMSC carries out flow control to group broadcasting broadcast business data stream.
In the embodiment of the present invention, described packet loss information can adopt multimode to represent current packet loss situation, as the quantity of the packet of loss, or the time interval or the packet loss of statistics etc. based on continual data package dropout.
The objects of statistics of concrete packet loss information can have multiple: for example: the data flow packet loss information of adding up certain multicast broadcast service; Described BMSC carries out flow control to group broadcasting broadcast business data stream: the data flow to described multicast broadcast service is controlled.Or, the total packet loss information of data flow of multiple multicast broadcast service of statistic multiplexing; Described BMSC carries out flow control to group broadcasting broadcast business data stream: the data flow to described multiplexing multiple multicast broadcast service is controlled.
The embodiment of the present invention four, by the packet loss information of the stream of service data statistics in process is provided at multicast broadcast service, and according to packet loss information, group broadcasting broadcast business data stream is controlled, with respect to prior art, reduce the packet loss of group broadcasting broadcast business data bag, promoted user's business experience.
Below in conjunction with concrete application scenarios, provide the method for application examples two embodiment of the present invention four to be described, signaling process figure is as shown in the figure shown in 7, in this example, the threshold value that MCE is each eNB configuration feedback report by session management messages (as session starts request), or the O & M threshold value of configuration report feedback on each eNB in advance, the quantity of the packet that this threshold value can be based on loss, or based on the time interval of continual data package dropout, idiographic flow comprises:
Step f1, in the time that the situation of data-bag lost exceedes the threshold value of setting, eNB can be to MCE transmitted traffic control request, this request can be based on certain business (Session ID or Service ID), also can be based on certain transmission channel, if based on transmission channel, eNB need to inform the MBMS business information that this transmission channel of MCE comprises, as which business is mapped on this transmission channel.
Step f2-f4, MCE directly converting flow control request message to MBMS gateway (Gateway, GW); The flow control request that also can report according to eNB determines whether need to carry out flow control, and if so, converting flow control request is to MBMS GW.MBMS GW converting flow control request message is to BMSC.The flow control request information of carrying that BMSC sends according to eNB (as packet loss etc.) carry out flow control, as the transmission rate of reduction business or business-binding.
In addition, eNB also can directly pass through MBMS GW to BMSC transmitted traffic control request, does not need to forward by MCE and MME.
Embodiment five, a kind of multicast broadcast service flow control methods, flow chart as shown in Figure 8, comprising:
G1, the session that MCE receives BMSC starts request message;
G2, MCE judges whether to support newly-increased MBMS business according to remaining MBMS Radio Resource, if do not support, continues step G3; If support, continue step G4;
G3, MCE refusal is newly-increased MBMS traffic assignments Radio Resource, or substitutes the Radio Resource of existing MBMS business by newly-increased MBMS business.Concrete can take multiple implementation with the Radio Resource that newly-increased MBMS business substitutes existing MBMS business: the information such as the priority of the newly-increased MBMS business of carrying in can starting to ask according to described session in the present embodiment, the Radio Resource that the MBMS business lower than described priority is taken is redistributed to described newly-increased MBMS business.Certainly, in the time carrying out business replacement, also can select at random existing business to replace, it is more reasonable just to replace according to priority, the demand of being close to the users, and concrete replacement side's mode is not construed as limiting the invention.
In the present embodiment, the Radio Resource that the MBMS business lower than described priority is taken is redistributed to described newly-increased MBMS business can take following mode:
MCE is by M2 signaling message notice eNB, and the multicast group of the MBMS business that eNB is exited be replaced adds the multicast group of described newly-increased MBMS business; And notify BMSC by response message.
G4, MCE forwards session to the base station under broadcast multi-broadcasting single frequency network MBSFN region and starts request message.
In embodiments of the present invention,, if MCE refusal is newly-increased MBMS traffic assignments Radio Resource, MCE does not forward session to the base station under broadcast multi-broadcasting single frequency network MBSFN region and starts request message.
The embodiment of the present invention five, the interface by MCE as access control, based on the distribution condition of Radio Resource, determine whether to refuse new service resources application, reduce the load of system, and then reduced the packet loss of group broadcasting broadcast business data bag, promoted user's business experience.
Below in conjunction with concrete application scenarios, provide application examples three to be described the method for the embodiment of the present invention five, signaling process figure shown in 9, comprising as shown in the figure:
In step h1-h3, BMSC arrives MCE by the QoS parameter (QoS) that carries traffic aided, comprising information such as this business guaranteed rate (GBR) and/or maximum rates (MBR).
Step h4, all eNB that are responsible under MBSFN region due to MCE divide the Radio Resource that is used in MBMS transmission, thereby MCE knows this MBSFN region also remains how many available MBMS Radio Resources; And according to the service quality receiving from BMSC (QoS) information, MCE can estimate the newly-increased required Radio Resource of MBMS business.
If the remaining MBMS Radio Resource of step h5-h7 cannot be supported newly-increased MBMS business, MCE can not forward session to the eNB under this MBSFN region and start request message, but directly refusal is newly-increased MBMS traffic assignments Radio Resource, and return to session rejection response to BMSC; Or MCE can be according to information such as the service priority carrying in MBMS business, determine whether to substitute the Radio Resource of the MBMS business that priority ratio is lower, as needs are replaced, MCE is by M2 signaling message notice eNB, the multicast group of the MBMS business that eNB is exited be replaced, and notify BMSC by response message.
Embodiment six,
A kind of multicast broadcast service flow control methods, flow chart as shown in figure 10, comprising:
K1, MCE receives the QoS information that BMSC sends;
K2, according to synchronizing sequence length (SYNC sequence length) and/or QoS information, the length of configuration cycle dynamics DSP, and the DSP length after adjusting is notified to the base station under broadcast multi-broadcasting single frequency network MBSFN region.
In the present embodiment, synchronizing sequence (synchronization sequence, SYNC sequence) for being identified at the transmission of the multiple packets in a period of time, all packets under same SYNC sequence use identical timestamp (Timestamp) as instruction.May adopt different SYNC sequence values for different MBMS business according to the data transfer rate of transmission, the value of SYNC sequence can be configured by network management center (O & M), also can be configured by BMSC.
The present embodiment is dynamically adjusted DSP according to synchronizing sequence length (SYNC sequence length) and/or QoS information, in the time that original service dynamic can not meet dispatching requirement and cause packet loss dispatching cycle, increase DSP, effectively reduce the packet loss of transfer of data, improve the quality of transfer of data, promoted user's business experience.
Below in conjunction with concrete application scenarios, provide application examples four to be described the method for the embodiment of the present invention six, signaling process figure shown in 11, comprising as shown in the figure:
In step S1-S3, BMSC arrives MCE by the QoS parameter (QoS) that carries SYNC sequence length and traffic aided, and wherein SYNC sequence length is directly configured on MCE by network management system (O & M); QoS comprises that this business ensures the information such as bit rate (GBR) and/or Maximum Bit Rate (MBR).MCE is according to the length of SYNC sequence length and QoS information configuration cycle dynamics (DSP), can be at a DSP end of transmission for the business that makes same SYNC sequence, the configuration of DSP is generally the integral multiple of SYNC sequence length; MCE also will consider the summation of the business datum amount of the concrete transmission of corresponding transmission channel (MCH) in configuration DSP, ensures can make all business data packet in this transmission channel to be dispatched in a DSP.
In step S4, MCE informs the wireless resource configuration of this business of eNB on eating dishes without rice or wine by conversation request message or other M2 signaling message, comprising the configuration information of DSP, transmission channel, the order of business transmission etc. of transport service.ENB dispatches the business in this transmission channel according to the relevant information receiving.Subsequent step is identical with prior art.
The basic logical structure schematic diagram of the equipment of realizing said method in the embodiment of the present invention is provided below.For convenience of explanation, only show the part relevant to the embodiment of the present invention, below functional module/unit of comprising of equipment can be module/unit that hardware module/unit, software module/unit or software and hardware combine.
Embodiment seven, a kind of multicast broadcast service server, structural representation as shown in figure 12, comprising:
Information receiving unit 1210, the traffic resource assignment information sending for receiving many cell multicasts coordination entity MCE;
Flow controlling unit 1220, carries out traffic shaping to realize flow control for the traffic resource assignment information receiving according to described information receiving unit 1210 to multicast broadcast service stream.
In the present embodiment, described flow controlling unit 1220 carries out that the granularity of traffic shaping can be based on a certain business, also can be the multiple business (at least two business) based on carrying out service integration, concrete described information receiving unit 1210 traffic resource assignment information can comprise: the bit rate of a certain multicast broadcast service transmission; Or, the gross bit rate that carries out multiplexing multiple multicast broadcast service transmission; Or, the transmitted data amount of a certain multicast broadcast service in the dispatching cycle; Or, in the dispatching cycle, carry out the multiplexing total transmitted data amount of multiple multicast broadcast service.
In the embodiment of the present invention, traffic shaping generally refers to a certain MBMS business or carries out multiplexing multiple MBMS business and exceed the packet that can dispatch in the dispatching cycle and carry out buffer memory, and with dispatching follow-up dispatching cycle.Adopt the mode of delay dispatching, make the transmission of data flow can resource-based service condition and capacity of equipment allocate.
The embodiment of the present invention seven multicast broadcast service servers can be, but not limited to move the method described in embodiment mono-.
Be appreciated that carrying out traffic shaping can also carry out according to other data, reference example eight and nine and ten.
Embodiment eight, a kind of multicast broadcast service server, structural representation as shown in figure 13, comprising:
Threshold value setting unit 1310, according to MBMS quality QoS information, generates the defeated speed threshold value of data flow of multicast broadcast service;
In the embodiment of the present invention, priority difference based on business, MBMS business can define different QoS information, QoS information can comprise many kinds of parameters, as time delay, shake, business guaranteed rate (Guaranteed Bit Rate, and maximum traffic transmission rate (Maximal Bit Rate, MBR) etc. GBR).
Flow controlling unit 1320, for carrying out traffic shaping according to described threshold value to the data stream transmitting of described multicast broadcast service.
Flow controlling unit 1320 described in the present embodiment carries out the process of traffic shaping can take following mode: obtain business guaranteed rate (the Guaranteed Bit Rate in QoS information, and maximum traffic transmission rate (Maximal Bit Rate, MBR) GBR); And according to the defeated speed threshold value of data flow of GMR and MBR generation multicast broadcast service; Described threshold value is greater than business guaranteed rate, is less than maximum traffic transmission rate; The range of choice of described threshold value is generally selected between business guaranteed rate and maximum traffic transmission rate; When the traffic transmission rate of described multicast broadcast service exceedes described threshold value, transmission rate is adjusted to described threshold value the unnecessary packet of buffer memory.
The multicast broadcast service server that the present embodiment provides can be, but not limited to move the method described in embodiment bis-.
Embodiment nine, a kind of multicast broadcast service server, structural representation as shown in figure 14, comprising:
Speed selected cell 1410, for obtaining the business-binding speed ABBR of multiplexing multiple multicast broadcast service;
In the present embodiment, speed selected cell 1410 specifically obtains the process of the business-binding speed ABBR of multiplexing multiple multicast broadcast service can take various ways, two kinds of feasible modes are provided below, are appreciated that following mode, only for the present invention gives an example, is not construed as limiting the invention.
Mode one, obtain the ABBR in the QoS information of described multiplexing multiple multicast broadcast service;
Mode two, calculate described ABBR according to GBR and MBR in the QoS information of each business in described multiplexing multiple multicast broadcast service.
Flow controlling unit 1420, carries out traffic shaping for the data flow of the transmission to described data transmission channel according to described ABBR.The process of traffic shaping is referring to the description of embodiment seven.
The multicast broadcast service server that the present embodiment provides can be, but not limited to move the method described in embodiment tri-.
In order to realize the flow control of multicast broadcast service, the embodiment of the present invention ten provides a kind of base station, and structural representation as shown in figure 15, comprising:
Statistic unit 1510, for adding up the packet loss information of group broadcasting broadcast business data stream;
Flow control request unit 1520, in the time that the packet loss information of described statistics exceeds preset thresholding, to BMSC transmitted traffic control request, so that BMSC carries out flow control to group broadcasting broadcast business data stream.
In the embodiment of the present invention, described packet loss information can adopt multimode to represent current packet loss situation, as the quantity of the packet of loss, or the time interval or the packet loss of statistics etc. based on continual data package dropout.
The objects of statistics of the concrete packet loss information of described statistic unit 1510 can have multiple: for example: the data flow packet loss information of adding up certain multicast broadcast service; Described BMSC receives after described flow control request, group broadcasting broadcast business data stream carried out to flow control be: the data flow to described multicast broadcast service is controlled.Or, the total packet loss information of data flow of multiple multicast broadcast service of statistic multiplexing; Described BMSC carries out flow control to group broadcasting broadcast business data stream: the data flow to described multiplexing multiple multicast broadcast service is controlled.
Carry out can also realizing in many cell multicasts coordination entity of flow control, the embodiment of the present invention 15 and 16 provides a kind of many cell multicasts coordination entity.
The method described in embodiment tetra-can be moved in the base station that the present embodiment provides.
Embodiment 11, a kind of many cell multicasts coordination entity, structural representation as shown in figure 16, comprising:
Receiving element 1610, starts request message for the session that receives BMSC;
Resource assignment control 1620, for judging whether to support newly-increased MBMS business according to remaining MBMS Radio Resource, if cannot support, refusal is newly-increased MBMS traffic assignments Radio Resource, or substitutes the Radio Resource of existing MBMS business by newly-increased MBMS business.
In the present embodiment, resource assignment control 1620 can start according to described session the information such as priority of the newly-increased MBMS business of carrying in request, and the Radio Resource that the MBMS business lower than described priority is taken is redistributed to described newly-increased MBMS business.Certainly, in the time carrying out business replacement, also can select at random existing business to replace, it is more reasonable just to replace according to priority, the demand of being close to the users, and concrete replacement side's mode is not construed as limiting the invention.
The Radio Resource that MBMS business lower than described priority is taken is redistributed to described newly-increased MBMS business can take following mode:
MCE is by M2 signaling message notice eNB, and the multicast group of the MBMS business that eNB is exited be replaced adds the multicast group of described newly-increased MBMS business; And notify BMSC by response message.
Many cell multicasts coordination entity that the present embodiment provides can be, but not limited to move the method described in embodiment five.
Embodiment 12, a kind of many cell multicasts coordination entity, structural representation as shown in figure 17, comprising:
Receiving element 1710, receives the QoS information that BMSC sends;
Cycle adjusting unit 1720, for according to synchronizing sequence length SYNC sequence length and/or QoS information, configures the length of cycle dynamics DSP, and the DSP length after adjusting is notified to the base station under broadcast multi-broadcasting single frequency network MBSFN region.
In the present embodiment, synchronizing sequence (synchronization sequence, SYNC sequence) for being identified at the transmission of the multiple packets in a period of time, all packets under same SYNC sequence use identical timestamp (Timestamp) as instruction.May adopt different SYNC sequence values for different MBMS business according to the data transfer rate of transmission, the value of SYNC sequence can be configured by network management center (O & M), also can be configured by BMSC.
Many cell multicasts coordination entity that the present embodiment provides can be, but not limited to move the method described in embodiment six.
One of ordinary skill in the art will appreciate that above-described embodiment the whole bag of tricks or device in all or part of step be can carry out the hardware that instruction is relevant by program to complete, this program can be stored in a computer-readable recording medium, and storage medium can comprise: ROM, RAM, disk or CD etc.
The method that the above-mentioned various device of the embodiment of the present invention can move, with reference to the description of said method embodiment, repeats no more herein.
The multicast broadcast service flow control methods and the relevant device that above the embodiment of the present invention are provided are described in detail, wherein:
The multicast broadcast service flow control methods providing in the embodiment of the present invention, in process, obtain related data by providing at multicast broadcast service, and according to the data of obtaining, group broadcasting broadcast business data stream is controlled, with respect to prior art, reduce the packet loss of group broadcasting broadcast business data bag, promoted user's business experience.
Applied specific case herein principle of the present invention and execution mode are set forth, the explanation of above embodiment is just for helping to understand method of the present invention and core concept thereof; , for one of ordinary skill in the art, according to thought of the present invention, all will change in specific embodiments and applications, in sum, this description should not be construed as limitation of the present invention meanwhile.
Claims (7)
1. a multicast broadcast service flow control methods, is characterized in that, comprising:
The packet loss information of base station statistics group broadcasting broadcast business data stream;
In the time that the packet loss information of described statistics exceeds preset thresholding, base station is to BMSC transmitted traffic control request, so that BMSC carries out flow control to group broadcasting broadcast business data stream.
2. the method for claim 1, is characterized in that, the packet loss information of described base station statistics group broadcasting broadcast business data stream comprises: the data flow packet loss information of adding up certain multicast broadcast service; Described BMSC carries out flow control to group broadcasting broadcast business data stream: the data flow to described multicast broadcast service is controlled.
3. the method for claim 1, is characterized in that, the packet loss information of described base station statistics group broadcasting broadcast business data stream comprises: the total packet loss information of data flow of multiple multicast broadcast service of statistic multiplexing; Described BMSC carries out flow control to group broadcasting broadcast business data stream: the data flow to described multiplexing multiple multicast broadcast service is controlled.
4. the method as described in claim 1-3, is characterized in that:
Described preset thresholding is configured by session management messages by multicast coordination entity; Or,
Described preset thresholding is pre-configured by network management system.
5. a base station, is characterized in that, comprising:
Statistic unit, for adding up the packet loss information of group broadcasting broadcast business data stream;
Flow control request unit, in the time that the packet loss information of described statistics exceeds preset thresholding, to BMSC transmitted traffic control request, so that BMSC carries out flow control to group broadcasting broadcast business data stream.
6. base station as claimed in claim 5, is characterized in that:
Described statistic unit, for adding up the packet loss information of group broadcasting broadcast business data stream, specifically comprises:
Add up the data flow packet loss information of certain multicast broadcast service; Or,
The total packet loss information of data flow of multiple multicast broadcast service of statistic multiplexing.
7. the base station as described in claim 5 or 6 is characterized in that:
Described preset thresholding is configured by session management messages by multicast coordination entity; Or,
Described preset thresholding is pre-configured by network management system.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107786947A (en) * | 2016-08-31 | 2018-03-09 | 成都鼎桥通信技术有限公司 | MBMS data transmission method, donor base station, via node and system |
| CN111556540A (en) * | 2020-05-13 | 2020-08-18 | 腾讯科技（深圳）有限公司 | SMF entity execution method, SMF entity, PCF entity execution method and PCF entity |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1156125C (en) * | 2002-09-29 | 2004-06-30 | 清华大学 | Flow control method based on feedback of client terminal |
| CN1773952A (en) * | 2004-11-10 | 2006-05-17 | 华为技术有限公司 | Bandwidth gurantee method for communication equipment or high-priority messaging during network at fault |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107786947A (en) * | 2016-08-31 | 2018-03-09 | 成都鼎桥通信技术有限公司 | MBMS data transmission method, donor base station, via node and system |
| CN111556540A (en) * | 2020-05-13 | 2020-08-18 | 腾讯科技（深圳）有限公司 | SMF entity execution method, SMF entity, PCF entity execution method and PCF entity |
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