CN102036177A - Multicast and broadcast service flow control method and related equipment - Google Patents
Multicast and broadcast service flow control method and related equipment Download PDFInfo
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- CN102036177A CN102036177A CN200910179903XA CN200910179903A CN102036177A CN 102036177 A CN102036177 A CN 102036177A CN 200910179903X A CN200910179903X A CN 200910179903XA CN 200910179903 A CN200910179903 A CN 200910179903A CN 102036177 A CN102036177 A CN 102036177A
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Abstract
The invention discloses a multicast and broadcast service flow control method and related equipment. In the multicast and broadcast service flow control method provided by the embodiment of the invention, related data is acquired in the process of providing multicast and broadcast services, and the multicast and broadcast service flow is controlled according to the acquired data. Compared with the prior art, the packet loss of multicast and broadcast service packets is reduced and the service experience of users is improved.
Description
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 the multimedia multicast broadcasting service, and (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 begin message to MME, comprising information such as session identification, MBMS service identifications.MME transmits session and begins message to MCE, and MCE reserves Radio Resource for newly-increased MBMS is professional, and tells to all eNB under this MBSFN zone.ENB tells UE to have new MBMS business to transmit by the radio resource control information (RRC) of RAN side, interested UE can feed back to eNB to this business, and eNB determines the ip multicast group that whether adds this MBMS business to carry out the transmission of this business according to user's feedback information.
In 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 might cause in a dispatching cycle, need the packet of the business of scheduling exceeded should dispatching cycle the actual quantity of data packets that can dispatch, especially when the transfer of data of burst MBMS business appears in certain period, can finally cause eNB to abandon the packet that to dispatch, thereby influence user's experience.
Summary of the invention
The embodiment of the invention provides multicast broadcast service flow control methods and relevant device, can realize multicast and broadcast is carried out flow control, reduces packet loss, promotes user's business experience.
A kind of multicast broadcast service flow control methods that the embodiment of the invention provides comprises:
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 traffic shaping to realize flow control.
A kind of multicast broadcast service flow control methods that the embodiment of the invention provides comprises:
BMSC generates the defeated speed threshold value of data flow of multicast broadcast service according to MBMS quality QoS information;
According to described threshold value the data flow of described multicast broadcast service is carried out traffic shaping, to realize flow control.
A kind of multicast broadcast service flow control methods that the embodiment of the invention provides comprises:
BMSC obtains the business-binding speed ABBR of multiplexing a plurality of multicast broadcast service;
According to described ABBR to multiplexing a plurality of multicast broadcast service data flow transmitted carry out traffic shaping, to realize flow control.
A kind of multicast broadcast service flow control methods that the embodiment of the invention provides comprises:
The packet loss information of base station statistics group broadcasting broadcast business data stream;
When the packet loss information of described statistics exceeded the thresholding that presets, then the base station was 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 invention provides comprises:
The session that MCE receives BMSC begins request message;
MCE judges whether to support the MBMS business that increases newly according to remaining MBMS Radio Resource,
If cannot support, then the MCE refusal is newly-increased MBMS traffic assignments Radio Resource, perhaps with the professional Radio Resource that substitutes existing MBMS business of newly-increased MBMS.
A kind of multicast broadcast service flow control methods that the embodiment of the invention provides comprises:
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 adjusted DSP length is notified to base station under the broadcast multi-broadcasting single frequency network MBSFN zone.
A kind of multicast broadcast service server that the embodiment of the invention provides comprises:
Information receiving unit is used to receive the traffic resource assignment information that many cell multicasts coordination entity MCE sends;
Flow controlling unit is used for according to described traffic resource assignment information group broadcasting broadcast business data stream being carried out traffic shaping to realize flow control.
A kind of multicast broadcast service server that the embodiment of the invention provides comprises:
Threshold value is provided with the unit, according to MBMS quality QoS information, generates the defeated speed threshold value of data flow of multicast broadcast service;
Flow controlling unit is used for according to described threshold value the data flow transmission of described multicast broadcast service being carried out traffic shaping.
A kind of multicast broadcast service server that the embodiment of the invention provides comprises:
The rate selection unit is used to obtain the business-binding speed ABBR of multiplexing a plurality of multicast broadcast service;
Flow controlling unit is used for according to described ABBR the data flow transmitted of described data transmission channel being carried out traffic shaping.
A kind of base station that the embodiment of the invention provides comprises:
Statistic unit, the packet loss information that is used to add up group broadcasting broadcast business data stream;
The flow control request unit is used for when the packet loss information of described statistics exceeds the thresholding that presets, to BMSC transmitted traffic control request, so that BMSC carries out flow control to group broadcasting broadcast business data stream.
A kind of many cell multicasts coordination entity that the embodiment of the invention provides comprises:
Receiving element, the session that is used to receive BMSC begins request message;
The resource allocation control unit, be used for judging whether to support the MBMS business that increases newly according to remaining MBMS Radio Resource, if cannot support, then refusal is newly-increased MBMS traffic assignments Radio Resource, perhaps with the professional Radio Resource that substitutes existing MBMS business of newly-increased MBMS.
A kind of many cell multicasts coordination entity that the embodiment of the invention provides comprises:
Receiving element receives the QoS information that BMSC sends;
Cycle adjusting unit is used for according to synchronizing sequence length SYNC sequence length and/or QoS information, the length of configuration cycle dynamics DSP, and adjusted DSP length is notified to base station under the broadcast multi-broadcasting single frequency network MBSFN zone.The embodiment of the invention provides the multicast broadcast service flow control methods, obtain related data in the process by providing at multicast broadcast service, and multicast broadcast service stream is controlled according to the data of obtaining, with respect to prior art, reduce the packet loss of group broadcasting broadcast business data bag, promoted user's business experience.
Description of drawings
In order to be illustrated more clearly in the technical scheme in the embodiment of the invention, the accompanying drawing of required use is done to introduce simply in will describing embodiment below, apparently, accompanying drawing in describing below only is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
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 invention one multicast broadcast service flow control methods;
Fig. 3 is the flow chart of the embodiment of the invention two multicast broadcast service flow control methods;
Fig. 4 is the flow chart of the embodiment of the 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 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 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 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 invention seven multicast broadcast service servers;
Figure 13 is the structural representation of the embodiment of the invention eight multicast broadcast service servers;
Figure 14 is the structural representation of the embodiment of the invention nine multicast broadcast service servers;
Figure 15 is the structural representation of the embodiment of the invention ten base stations;
Figure 16 is the structural representation of embodiment of the invention cell multicast more than 11 coordination entity;
Figure 17 is the structural representation of embodiment of the invention cell multicast more than 12 coordination entity.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the invention, the technical scheme in the embodiment of the invention is clearly and completely described, obviously, described embodiment only is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills belong to the scope of protection of the invention not making the every other embodiment that is obtained under the creative work prerequisite.
Support evolution general continental rise wireless access network (Evolved Universal Terrestrial Radio Access Network, the network architecture schematic diagram of multicast broadcast service E-UTRAN) as shown in Figure 1, main entity and interface function are as follows:
(Broadcast Multicast Service Center, BMSC): be used for reception and get the broadcast/multi broadcast business data from content supplier, (Gateway GW) is issued to each base station (eNB) to the multicast broadcast service server by the MBMS gateway.Premiere feature is to use synchronously that (synchronization, SYNC) agreement is given the eNB transmission/broadcasting MBMS bag of 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 in broadcast multi-broadcasting single frequency network (Multicast/Broadcast single frequency network, MB SFN) transmission to the eNB Resources allocation of all participations.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 the MBMS session control signaling.There are not MCE and subscriber equipment (User Equipment, UE) mutual signaling.
The multimedia broadcast-multicast service of evolution (Evolved MultiMedia Broadcast Multicast Service, E-MBMS) broadcast multi-broadcasting single frequency network (Multicast/Broadcast single frequency network has been proposed, MBSFN) notion, promptly adopt same frequency to send identical data simultaneously in all sub-districts, this mode can greatly improve the whole signal to noise ratio in sub-district and distribute, the frequency resource of saves valuable greatly, improve the availability of frequency spectrum, and can solve the coverage hole problem with the way of penetrating that takes place frequently by multiple spot, obtain coverage rate preferably.
Embodiment one
A kind of multicast broadcast service flow control methods, flow chart comprises as shown in Figure 2:
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, described BMSC can comprise before receiving the traffic resource assignment information that many cell multicasts coordination entity sends: (Quality of Service, QoS) information or the resource use information obtained from the base station are carried out the multicast broadcast service wireless resource allocation to MCE according to the service quality of obtaining from BMSC.The described resource use information of obtaining from the base station comprises: the base station is used for the resource of clean culture or location service and uses information.
Carry out in the embodiment of the invention that the granularity of traffic shaping can be based on a certain business, also can be based on a plurality of business (at least two business) of carrying out service integration, concrete described traffic resource assignment information can comprise:
The bit rate of a certain multicast broadcast service transmission; Perhaps, carry out the gross bit rate of multiplexing a plurality of multicast broadcast service transmission; Perhaps, the transmitted data amount of a certain multicast broadcast service in dispatching cycle; Perhaps, carry out the multiplexing total transmitted data amount of a plurality of multicast broadcast service in a dispatching cycle.
In the embodiment of the invention, traffic shaping generally is meant professional or carry out multiplexing a plurality of MBMS business and exceed the packet that can dispatch in the dispatching cycle and carry out buffer memory to a certain MBMS, and with dispatching follow-up dispatching cycle.The mode that promptly adopt to postpone scheduling, make the transmission of data flow can resource-based operating position and capacity of equipment allocate.
The embodiment of the invention can also take situation or qos parameter carries out traffic shaping based on interface-free resources, referring to following embodiment two and three;
Embodiment two, take the traffic shaping of situation based on interface-free resources;
A kind of multicast broadcast service flow control methods, flow chart comprises as shown in Figure 3:
B1, BMSC generate the defeated speed threshold value of data flow of multicast broadcast service according to MBMS quality QoS information;
Be appreciated that, in the embodiment of the invention, priority difference based on business, the MBMS business can define different QoS information, QoS information can comprise multiple parameter, as time delay, shake, professional guarantee speed (Guaranteed Bit Rate, GBR) and the maximum traffic transmission rate (Maximal Bit Rate, MBR) or the like.
B2, the data flow of described multicast broadcast service is carried out traffic shaping according to described threshold value.
The business in the QoS information obtained guarantee speed (Guaranteed Bit Rate, GBR) and the maximum traffic transmission rate (Maximai Bit Rate, MBR);
And generate the defeated speed threshold value of data flow of multicast broadcast service according to GMR and MBR; Described threshold value guarantees speed greater than business, less than the maximum traffic transmission rate; The range of choice of described threshold value generally guarantees to select between speed and the maximum traffic transmission rate in business; When the traffic transmission rate of described multicast broadcast service surpasses described threshold value, then transmission rate is adjusted to described threshold value and the unnecessary packet of buffer memory.
Embodiment three, based on the traffic shaping of qos parameter;
A kind of multicast broadcast service flow control methods, flow process comprises as shown in Figure 4:
C1, BMSC obtain the business-binding speed ABBR of multiplexing a plurality of multicast broadcast service;
Specifically obtain the process of the business-binding speed ABBR of multiplexing a plurality of multicast broadcast service and can take multiple mode, 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 a plurality of multicast broadcast service;
Mode two, calculate described ABBR according to GBR and MBR in each professional QoS information in described multiplexing a plurality of multicast broadcast service.
C2 carries out traffic shaping according to described ABBR to the data flow of described multiplexing a plurality of multicast broadcast service.
In the embodiment of the invention,, can choose the transmission rate of corresponding service binding according to the OoS parameter of different multicast broadcast service for guarantee service quality (QoS); The mode of traffic shaping is referring to the foregoing description one or two.
The foregoing description one to three technical scheme, the resource allocation information that BMSC reports by foundation MCE or group broadcasting broadcast business data stream is carried out traffic shaping according to interface-free resources condition information that obtains or professional qos parameter, the transmission of control data stream, 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 invention one to three of application examples to be described, signaling process figure shown in 5, comprising as shown in the figure:
Among the steps d 1-d3, BMSC guarantees bit rate (GBR) and/or Maximum Bit Rate information such as (MBR) by carrying professional relevant QoS parameter (QoS) to MCE 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 passed in a dispatching cycle.Implementation is, gets a value between GBR and the MBR as this professional transmission rate according to the interface-free resources situation, is made as x, and the length of dispatching cycle is y, and assigned radio resource is z.Computing formula is: z=x*y.
In the steps d 4, MCE should the wireless resource configuration of business on eating dishes without rice or wine by conversation request message or other M2 (between MCE and the eNB) signaled eNB, comprising the transmission channel of transport service, the sequential scheduling of professional transmission.
Steps d 5, eNB add the ip multicast group, mainly are in order to set up the transmission channel of the MBMS user's face between core net and the Access Network.
Steps d 6, eNB carry out the scheduling of Radio Resource according to the relevant information that MCE provides for this business, and return session and begin response message or other M2 signaling message to MCE.Step 5 and six does not have inevitable time relationship.
Steps d 7-d9, MCE begin to carry in the response message this professional resource obligate information to BMSC in session, this obligate information can be to distribute to this professional resource information (as the bit rate of data quantity transmitted/transmission) in the dispatching cycle, also can be the resource information of the transmission channel (MCH) of distributing to this business place in the dispatching cycle (as the bit rate of the data volume/transmission of transmission channel), the resource of perhaps carrying out a plurality of 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 data packets of a dynamic dispatching periodic transfer, and when using this parameter, MCE also needs to tell the length in BMSC dynamic dispatching cycle.If reserved resource information is with the resource representation of business-binding, MCE also needs to tell the professional map information on the transmission channel of this business-binding of BMSC, and which MBMS business is promptly arranged on the transmission channel.In addition, should use-case in, steps d 7 can directly just send after steps d 3, need not to receive by the time the response message of steps d 6.
The resource allocation information that steps d 10, BMSC provide according to MCE carries out the traffic shaping of the professional transmission of MBMS, this traffic shaping can be based on certain according to the indication of steps d 9 and broadcast multicast/broadcast service, also can be based on a plurality of multicast broadcast service of 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 can't dispatch a dispatching cycle, in follow-up dispatching cycle cached data packet is dispatched.
Should can also carry out resource reservation by the resource operating position that each eNB reports by use-case MCE, implementation is, eNB can be by steps d 6 conversational response message or other M2 signaling message inform and resource operating position on this eNB of MCE wherein comprise the resource situation that is used for clean culture or other purposes (as location service LCS, Relay) etc. on the eNB.How steps d 7-d9, MCE carry out the resource allocation of wireless side by this information decision, and are notified to BMSC.Steps d 10, BMSC carry out traffic shaping according to above-mentioned information.
Embodiment four,
A kind of multicast broadcast service flow control methods, flow chart comprises as shown in Figure 6:
E1, the packet loss information of base station statistics group broadcasting broadcast business data stream;
E2, when the packet loss information of described statistics exceeded the thresholding that presets, then the base station was 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 invention, described packet loss information can adopt multimode to represent current packet loss situation, as: the quantity of data packets of losing, perhaps based on the time interval of continuous packet loss or the packet loss of statistics etc.
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.Perhaps, the total packet loss information of the data flow of a plurality of 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 a plurality of multicast broadcast service is controlled.
The embodiment of the invention four, by the packet loss information of the stream of service data statistics in the process is provided at multicast broadcast service, and group broadcasting broadcast business data stream is controlled according to packet loss information, 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 invention four to be described, signaling process figure is as shown in the figure shown in 7, in this example, MCE is by the threshold value of session management messages (beginning request as session) for each eNB configuration feedback report, perhaps O﹠amp; M is the threshold value of configuration report feedback on each eNB in advance, and this threshold value can be based on the quantity of data packets of losing, and perhaps based on the time interval of continuous packet loss, idiographic flow comprises:
Step f1, when the situation of data-bag lost surpasses the threshold value that is provided with, 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 inform the MBMS business information that this transmission channel of MCE is comprised, and as which business is mapped on this transmission channel.
Step f2-f4, MCE directly converting flow control request message to the MBMS gateway (Gateway, GW); Can determine also whether needs carry out flow control according to the flow control request that eNB reports, if then the converting flow control request is to MBMS GW.MBMS GW converting flow control request message is to BMSC.The information that BMSC carries according to the flow control request that eNB sends (as packet loss etc.) carry out flow control, as reduce the transmission rate of business or business-binding.
In addition, eNB also can directly pass through MBMS GW to BMSC transmitted traffic control request, does not need to transmit by MCE and MME.
Embodiment five, a kind of multicast broadcast service flow control methods, flow chart comprises as shown in Figure 8:
G1, the session that MCE receives BMSC begins request message;
G2, MCE judges whether to support the MBMS business that increases newly if do not support, then to continue step G3 according to remaining MBMS Radio Resource; If support, then continue step G4;
G3, the MCE refusal is newly-increased MBMS traffic assignments Radio Resource, perhaps with the professional Radio Resource that substitutes existing MBMS business of newly-increased MBMS.Concrete can take multiple implementation with the professional Radio Resource that substitutes existing MBMS business of newly-increased MBMS: the information such as priority of the newly-increased MBMS business of carrying in can beginning to ask according to described session in the present embodiment will be lower than the Radio Resource that the MBMS business of described priority takies and redistribute to described newly-increased MBMS business.Certainly, when carrying out business replacement, also can select existing business to replace at random, 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, will be lower than Radio Resource that the MBMS business of described priority takies and redistribute to described newly-increased MBMS business and can take following mode:
MCE is by M2 signaling message notice eNB, and the multicast group of the MBMS business that makes eNB withdraw to be replaced adds the multicast group of described newly-increased MBMS business; And by response message notice BMSC.
G4, MCE transmit the base station under broadcast multi-broadcasting single frequency network MBSFN zone session and begin request message.
In embodiments of the present invention,, if MCE refusal is newly-increased MBMS traffic assignments Radio Resource, then MCE not the forwarding of the base station to broadcast multi-broadcasting single frequency network MBSFN zone under session begin request message.
The embodiment of the invention five is by the interface of MCE as access control, based on the wireless resource allocation situation, whether decision refuses 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 the method for three pairs of embodiment of the invention five of application examples to be described, signaling process figure shown in 9, comprising as shown in the figure:
Among the step h1-h3, BMSC guarantees speed (GBR) and/or maximum rate information such as (MBR) by carrying professional relevant QoS parameter (QoS) to MCE comprising this business.
Step h4, all eNB that are responsible under the MBSFN zone owing to MCE divide the Radio Resource that is used in the MBMS transmission, thereby MCE knows this MBSFN zone also remains how many available MBMS Radio Resources; And according to the service quality that receives from BMSC (QoS) information, MCE can estimate the professional required Radio Resource of newly-increased MBMS.
If the remaining MBMS Radio Resource of step h5-h7 can't be supported the MBMS business that increases newly, MCE can not transmit session to the eNB under this MBSFN zone and begin request message, but directly refusal is newly-increased MBMS traffic assignments Radio Resource, and returns the session rejection response to BMSC; Perhaps MCE can be according to the information such as service priority of carrying in the MBMS business, whether decision substitutes the Radio Resource of the lower MBMS business of priority ratio, replace as needs, MCE is by M2 signaling message notice eNB, the multicast group of the MBMS business that makes eNB withdraw to be replaced, and by response message notice BMSC.
Embodiment six,
A kind of multicast broadcast service flow control methods, flow chart comprises as shown in figure 10:
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 adjusted DSP length is notified to base station under the broadcast multi-broadcasting single frequency network MBSFN zone.
In the present embodiment, synchronizing sequence (synchronization sequence, SYNC sequence) be used to be identified at the transmission of a plurality of packets in a period of time, all packets under same SYNC sequence use identical timestamp (Timestamp) as indication.May adopt different SYNC sequence values for different MBMS business according to the data transfer rate that transmits, the value of SYNC sequence can be by (the O﹠amp of network management center; M) be configured, also can be configured by BMSC.
Present embodiment is dynamically adjusted DSP according to synchronizing sequence length (SYNC sequence length) and/or QoS information, when original service dynamic can not satisfy dispatching requirement and cause packet loss dispatching cycle, then increase DSP, effectively reduced 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 the method for four pairs of embodiment of the invention six of application examples to be described, signaling process figure shown in 11, comprising as shown in the figure:
Among the step S1-S3, BMSC arrives MCE by carrying SYNC sequence length with professional relevant QoS parameter (QoS), and wherein SYNC sequence length also can be directly by network management system (O﹠amp; M) be configured on the MCE; QoS comprises that this business guarantees bit rate (GBR) and/or Maximum Bit Rate information such as (MBR).MCE is according to the length of SYNC sequence length and QoS information configuration cycle dynamics (DSP), in order to make that the business of same SYNC sequence can be at a DSP end of transmission, 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, guarantee can make in a DSP that all business data packet in this transmission channel obtain scheduling.
Among the step S4, MCE informs that by conversation request message or other M2 signaling message eNB should the wireless resource configuration of business on eating dishes without rice or wine, comprising the configuration information of DSP, the transmission channel of transport service, the sequential scheduling of professional transmission.ENB dispatches the business in this transmission channel according to the relevant information that receives.Subsequent step is identical with prior art.
The basic logical structure schematic diagram of realizing the equipment of said method in the embodiment of the invention is provided below.For convenience of explanation, only show the part relevant with the embodiment of the invention, functional module/unit that following equipment comprises 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 comprises as shown in figure 12:
Flow controlling unit 1220, the traffic resource assignment information that is used for receiving according to described information receiving unit 1210 is carried out traffic shaping to realize flow control 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 based on a plurality of business (at least two business) of 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; Perhaps, carry out the gross bit rate of multiplexing a plurality of multicast broadcast service transmission; Perhaps, the transmitted data amount of a certain multicast broadcast service in dispatching cycle; Perhaps, carry out the multiplexing total transmitted data amount of a plurality of multicast broadcast service in a dispatching cycle.
In the embodiment of the invention, traffic shaping generally is meant professional or carry out multiplexing a plurality of MBMS business and exceed the packet that can dispatch in the dispatching cycle and carry out buffer memory to a certain MBMS, and with dispatching follow-up dispatching cycle.The mode that promptly adopt to postpone scheduling, make the transmission of data flow can resource-based operating position and capacity of equipment allocate.
The embodiment of the invention seven multicast broadcast service servers can but be not limited to move embodiment one described method.
Be appreciated that carrying out traffic shaping can also carry out reference example eight and nine and ten according to other data.
Embodiment eight, a kind of multicast broadcast service server, structural representation comprises as shown in figure 13:
Threshold value is provided with 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 invention, priority difference based on business, the MBMS business can define different QoS information, QoS information can comprise multiple parameter, as time delay, shake, professional speed (the Guaranteed Bit Rate that guarantees, GBR) and the maximum traffic transmission rate (Maximal Bit Rate, MBR) or the like.
Flow controlling unit 1320 is used for according to described threshold value the data flow transmission of described multicast broadcast service being carried out traffic shaping.
Flow controlling unit described in the present embodiment 1320 carries out the process of traffic shaping can take following mode: the business of obtaining in the QoS information guarantees speed (Guaranteed Bit Rate, GBR) and the maximum traffic transmission rate (Maximal Bit Rate, MBR); And generate the defeated speed threshold value of data flow of multicast broadcast service according to GMR and MBR; Described threshold value guarantees speed greater than business, less than the maximum traffic transmission rate; The range of choice of described threshold value generally guarantees to select between speed and the maximum traffic transmission rate in business; When the traffic transmission rate of described multicast broadcast service surpasses described threshold value, then transmission rate is adjusted to described threshold value and the unnecessary packet of buffer memory.
The multicast broadcast service server that present embodiment provides can but be not limited to move embodiment two described methods.
Embodiment nine, a kind of multicast broadcast service server, structural representation comprises as shown in figure 14:
In the present embodiment, rate selection unit 1410 specifically obtains the process of the business-binding speed ABBR of multiplexing a plurality of multicast broadcast service can take multiple mode, 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 a plurality of multicast broadcast service;
Mode two, calculate described ABBR according to GBR and MBR in each professional QoS information in described multiplexing a plurality of multicast broadcast service.
Flow controlling unit 1420 is used for according to described ABBR the data flow transmitted of described data transmission channel being carried out traffic shaping.The process of traffic shaping is referring to the description of embodiment seven.
The multicast broadcast service server that present embodiment provides can but be not limited to move embodiment three described methods.
In order to realize the flow control of multicast broadcast service, the embodiment of the invention ten provides a kind of base station, and structural representation comprises as shown in figure 15:
Statistic unit 1510, the packet loss information that is used to add up group broadcasting broadcast business data stream;
Flow control request unit 1520 is used for when the packet loss information of described statistics exceeds the thresholding that presets, 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 invention, described packet loss information can adopt multimode to represent current packet loss situation, as: the quantity of data packets of losing, perhaps based on the time interval of continuous packet loss or the packet loss of statistics etc.
The objects of statistics of the packet loss information that described statistic unit 1510 is concrete can have multiple: for example: the data flow packet loss information of adding up certain multicast broadcast service; After described BMSC receives described flow control request, group broadcasting broadcast business data stream is carried out flow control be: the data flow to described multicast broadcast service is controlled.Perhaps, the total packet loss information of the data flow of a plurality of 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 a plurality of multicast broadcast service is controlled.
Carry out can also realizing on many cell multicasts coordination entity of flow control, the embodiment of the invention 15 and 16 provides a kind of many cell multicasts coordination entity.
Embodiment four described methods can be moved in the base station that present embodiment provides.
Embodiment 11, a kind of many cell multicasts coordination entity, structural representation comprises as shown in figure 16:
Receiving element 1610, the session that is used to receive BMSC begins request message;
Resource allocation control unit 1620, be used for judging whether to support the MBMS business that increases newly according to remaining MBMS Radio Resource, if cannot support, then refusal is newly-increased MBMS traffic assignments Radio Resource, perhaps with the professional Radio Resource that substitutes existing MBMS business of newly-increased MBMS.
The information such as priority of the newly-increased MBMS business that resource allocation control unit 1620 carries in can beginning to ask according to described session in the present embodiment will be lower than the Radio Resource that the MBMS business of described priority takies and redistribute to described newly-increased MBMS business.Certainly, when carrying out business replacement, also can select existing business to replace at random, 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.
To be lower than Radio Resource that the MBMS business of described priority takies redistributes to described newly-increased MBMS business and can take following mode:
MCE is by M2 signaling message notice eNB, and the multicast group of the MBMS business that makes eNB withdraw to be replaced adds the multicast group of described newly-increased MBMS business; And by response message notice BMSC.
Many cell multicasts coordination entity that present embodiment provides can but be not limited to move embodiment five described methods.
Embodiment 12, a kind of many cell multicasts coordination entity, structural representation comprises as shown in figure 17:
Receiving element 1710 receives the QoS information that BMSC sends;
In the present embodiment, synchronizing sequence (synchronization sequence, SYNC sequence) be used to be identified at the transmission of a plurality of packets in a period of time, all packets under same SYNC sequence use identical timestamp (Timestamp) as indication.May adopt different SYNC sequence values for different MBMS business according to the data transfer rate that transmits, the value of SYNC sequence can be by (the O﹠amp of network management center; M) be configured, also can be configured by BMSC.
Many cell multicasts coordination entity that present embodiment provides can but be not limited to move embodiment six described methods.
One of ordinary skill in the art will appreciate that the whole bag of tricks of the foregoing description or all or part of step in the device are to instruct relevant hardware to finish by program, this program can be stored in the 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 invention can move repeats no more with reference to the description of said method embodiment herein.
More than multicast broadcast service flow control methods and relevant device that the embodiment of the invention provided are described in detail, wherein:
The multicast broadcast service flow control methods that provides in the embodiment of the invention, obtain related data in the process by providing at multicast broadcast service, and group broadcasting broadcast business data stream is controlled according to the data of obtaining, with respect to prior art, reduce the packet loss of group broadcasting broadcast business data bag, promoted user's business experience.
Used specific case herein principle of the present invention and execution mode are set forth, the explanation of above embodiment just is used for helping to understand method of the present invention and core concept thereof; Simultaneously, for one of ordinary skill in the art, according to thought of the present invention, the part that all can change in specific embodiments and applications, in sum, this description should not be construed as limitation of the present invention.
Claims (23)
1. a multicast broadcast service flow control methods is characterized in that, 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 traffic shaping to realize flow control.
2. the method for claim 1 is characterized in that, the traffic resource assignment information that BMSC receives the transmission of many cell multicasts coordination entity comprises before:
MCE carries out the multicast broadcast service wireless resource allocation according to service quality QoS information of obtaining from BMSC or the resource use information of obtaining from the base station.
3. method as claimed in claim 2 is characterized in that, the described resource use information of obtaining from the base station comprises: the base station is used for the resource of clean culture or location service and uses information.
4. the method for claim 1 is characterized in that, described traffic resource assignment information comprises:
The bit rate of a certain multicast broadcast service transmission;
Perhaps, carry out the gross bit rate of multiplexing a plurality of multicast broadcast service transmission;
Perhaps, the transmitted data amount of a certain multicast broadcast service in dispatching cycle;
Perhaps, carry out the multiplexing total transmitted data amount of a plurality of multicast broadcast service in a dispatching cycle.
5. the method for claim 1 is characterized in that, described traffic shaping is:
All MBMS business exceed the packet that can dispatch in the dispatching cycle and carry out buffer memory in the professional or a certain transmission channel to a certain MBMS, and with dispatching follow-up dispatching cycle.
6. a multicast broadcast service flow control methods is characterized in that, comprising:
BMSC generates the defeated speed threshold value of data flow of multicast broadcast service according to MBMS quality QoS information;
According to described threshold value the data flow of described multicast broadcast service is carried out traffic shaping, to realize flow control.
7. method as claimed in claim 6 is characterized in that, described BMSC is according to MBMS quality QoS information, and the process that generates the defeated speed threshold value of data flow of multicast broadcast service comprises:
The business of obtaining in the QoS information guarantees speed GBR and maximum traffic transmission rate MBR;
And generate the defeated speed threshold value of data flow of multicast broadcast service according to GMR and MBR; Described threshold value guarantees speed greater than business, less than the maximum traffic transmission rate;
Describedly according to described threshold value the data flow of described multicast broadcast service is carried out traffic shaping and comprises:
When the traffic transmission rate of described multicast broadcast service surpasses described threshold value, then transmission rate is adjusted to described threshold value and the unnecessary packet of buffer memory.
8. a multicast broadcast service flow control methods is characterized in that, comprising:
BMSC obtains the business-binding speed ABBR of multiplexing a plurality of multicast broadcast service;
According to described ABBR to multiplexing a plurality of multicast broadcast service data flow transmitted carry out traffic shaping, to realize flow control.
9. method as claimed in claim 8 is characterized in that, the described process of obtaining the business-binding speed ABBR of multiplexing a plurality of multicast broadcast service comprises:
Obtain the ABBR in the QoS information of described multiplexing a plurality of multicast broadcast service;
Perhaps, calculate described ABBR according to GBR and MBR in each professional QoS information in described multiplexing a plurality of multicast broadcast service.
10. 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;
When the packet loss information of described statistics exceeded the thresholding that presets, then the base station was to BMSC transmitted traffic control request, so that BMSC carries out flow control to group broadcasting broadcast business data stream.
11. method as claimed in claim 9 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.
12. method as claimed in claim 9 is characterized in that, the packet loss information of described base station statistics group broadcasting broadcast business data stream comprises: the packet loss information that the data flow of a plurality of multicast broadcast service of statistic multiplexing is total; Described BMSC carries out flow control to group broadcasting broadcast business data stream: the data flow to described multiplexing a plurality of multicast broadcast service is controlled.
13. a multicast broadcast service flow control methods is characterized in that, comprising:
The session that MCE receives BMSC begins request message;
MCE judges whether to support the MBMS business that increases newly according to remaining MBMS Radio Resource,
If cannot support, then the MCE refusal is newly-increased MBMS traffic assignments Radio Resource, perhaps with the professional Radio Resource that substitutes existing MBMS business of newly-increased MBMS.
14. method as claimed in claim 13 is characterized in that, the professional Radio Resource that substitutes existing MBMS business of the described newly-increased MBMS of described usefulness comprises:
The information such as priority of the newly-increased MBMS business of carrying in beginning to ask according to described session will be lower than the Radio Resource that the MBMS business of described priority takies and redistribute to described newly-increased MBMS business.
15. method as claimed in claim 13 is characterized in that, will be lower than Radio Resource that the MBMS business of described priority takies and redistribute to described newly-increased MBMS business and comprise:
MCE is by M2 signaling message informing base station, and the multicast group of the MBMS business that makes the base station withdraw to be replaced adds the multicast group of described newly-increased MBMS business; And by response message notice BMSC.
16. method as claimed in claim 13 is characterized in that, if MCE refusal is newly-increased MBMS traffic assignments Radio Resource, then MCE not the forwarding of the base station to broadcast multi-broadcasting single frequency network MBSFN zone under session begin request message.
17. a multicast broadcast service flow control methods is characterized in that, 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 adjusted DSP length is notified to base station under the broadcast multi-broadcasting single frequency network MBSFN zone.
18. a multicast broadcast service server is characterized in that, comprising:
Information receiving unit is used to receive the traffic resource assignment information that many cell multicasts coordination entity MCE sends;
Flow controlling unit is used for according to described traffic resource assignment information group broadcasting broadcast business data stream being carried out traffic shaping to realize flow control.
19. a multicast broadcast service server is characterized in that, comprising:
Threshold value is provided with the unit, according to MBMS quality QoS information, generates the defeated speed threshold value of data flow of multicast broadcast service;
Flow controlling unit is used for according to described threshold value the data flow transmission of described multicast broadcast service being carried out traffic shaping.
20. a multicast broadcast service server is characterized in that, comprising:
The rate selection unit is used to obtain the business-binding speed ABBR of multiplexing a plurality of multicast broadcast service;
Flow controlling unit is used for according to described ABBR the data flow transmitted of described data transmission channel being carried out traffic shaping.
21. a base station is characterized in that, comprising:
Statistic unit, the packet loss information that is used to add up group broadcasting broadcast business data stream;
The flow control request unit is used for when the packet loss information of described statistics exceeds the thresholding that presets, to BMSC transmitted traffic control request, so that BMSC carries out flow control to group broadcasting broadcast business data stream.
22. the cell multicast coordination entity is characterized in that more than one kind, comprising:
Receiving element, the session that is used to receive BMSC begins request message;
The resource allocation control unit, be used for judging whether to support the MBMS business that increases newly according to remaining MBMS Radio Resource, if cannot support, then refusal is newly-increased MBMS traffic assignments Radio Resource, perhaps with the professional Radio Resource that substitutes existing MBMS business of newly-increased MBMS.
23. the cell multicast coordination entity is characterized in that more than one kind, comprising:
Receiving element receives the QoS information that BMSC sends;
Cycle adjusting unit is used for according to synchronizing sequence length SYNC sequence length and/or QoS information, the length of configuration cycle dynamics DSP, and adjusted DSP length is notified to base station under the broadcast multi-broadcasting single frequency network MBSFN zone.
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| CN200910179903XA CN102036177A (en) | 2009-09-29 | 2009-09-29 | Multicast and broadcast service flow control method and related equipment |
| CN201410333781.6A CN104093130B (en) | 2009-09-29 | 2009-09-29 | Multicast broadcast service flow control methods and relevant device |
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| CN200910179903XA CN102036177A (en) | 2009-09-29 | 2009-09-29 | Multicast and broadcast service flow control method and related equipment |
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| CN201410333781.6A Division CN104093130B (en) | 2009-09-29 | 2009-09-29 | Multicast broadcast service flow control methods and relevant device |
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