CN101931882B - Marking and receiving method and device of multimedia broadcast multicast service - Google Patents
Marking and receiving method and device of multimedia broadcast multicast service Download PDFInfo
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Abstract
The invention discloses a marking method of a multimedia broadcast multicast service, comprising the following steps of distributing only logical channel mark LCID (Local Character Set Identifier) information to each multimedia broadcast multicast service (MBMS) service carried in a multicast channel (MCH), and using MCH mark information as common mark information of each MBMS service in the MCH. The invention also discloses a receiving method of the multimedia broadcast multicast service, comprising the following steps of: receiving information of corresponding relationships of the MBMS service as well as the LCID information and the MCH mark information; according to the corresponding LCID information and the corresponding MCH mark information of the MBMS service requested by a user, monitoring a MCCH (Multipoint Control Channel) or dynamic dispatching information of the MCH to obtain subframe positions located by the LCID information and the MCH mark information of the MBMS service requested by the user, and monitoring relative subframes to obtain the MBMS service. The invention also discloses a device for realizing the method. The invention can mark richer MBMS services.
Description
Technical field
The present invention relates to multimedia broadcast multi-broadcasting business (MBMS business, Multimedia BroadcastMulticast Service) sign and reception technique, relate in particular to sign and method of reseptance and the device of multimedia broadcast multi-broadcasting business in a kind of Long Term Evolution (LTE, Long TermEvolution) system.
Background technology
Along with the fast development of Internet and popularizing of large-screen multi-functional mobile phone, a large amount of Mobile data multimedia services and various high bandwidth multimedia service have been there is, for example, video conference, television broadcasting, video request program, advertisement, online education, interactive game etc., this has met the business demand that mobile subscriber constantly rises on the one hand, simultaneously also for mobile operator brings new business growth point.These Mobile data multimedia services require a plurality of users can receive identical data simultaneously, compare with general data service, have the features such as data volume is large, duration length, delay sensitive.
In order to effectively utilize mobile network resource, third generation partner program (3GPP, 3rd GenerationPartnership Project) MBMS business has been proposed, this business is a kind of technology of data that transmits from a data source to a plurality of targets, realize sharing of network (comprising core net and Access Network) resource, improved the utilance of Internet resources (especially air interface resource).The MBMS business of 3GPP definition not only can realize classes of messages multicast and the broadcast of plain text low rate, but also can realize broadcast and the multicast of high-speed multimedia business, multiple abundant video, audio frequency and multimedia service are provided, this has complied with the trend of following Mobile data development undoubtedly, for the development of 3G provides better business prospect.
In LTE system, MBMS business can adopt multicast pattern mode, be called multicast broadcast single frequency network (MBSFN, Multicast/Broadcast over Single Frequency Network) sending mode, the MBMS business that adopts multicast pattern to send, also referred to as MBSFN business, can be after a plurality of communities adopt identical modulation coded format, adopt identical physical resource generation identical content, the feature of the many cell transmission of MBMS business: in the inter-sync of MBSFN region, transmit; Support the transmission of many cell MBMSs business to merge; Multicast service channel (MTCH, Multicast Traffic Channel) and multicast control channel (MCCH, Multicast Control Channel) under point-to-multipoint (p-T-m) pattern, be mapped on Multicast Channel (MCH, Multicast Chnanel) transmission channel; MBSFN retaining zone, MBSFN region, by the semi-static configuration of Operation and Maintenance.The subscriber equipment of a plurality of like this communities (UE, User equipment) can receive the MBMS business datum that a plurality of contents are identical and carry out single frequency network (SFN, Single FrequencyNetwork) and merge, thereby improves the gain that receives signal.A plurality of communities that adopt identical physical resource and MBSFN sending mode to send same MBMS business have formed a MBSFN region.A MBSFN region comprises a plurality of communities, possesses the data channel MTCH of a plurality of MBSFN business in identical MBSFN region, and the control channel MCCH of MBSFN business can be multiplexed into a MCH.The MCCH in identical MBSFN region and a plurality of MTCH, many logic channels can be mapped on same transmission channel MCH.
Fig. 1 is the structural representation of MCH in LTE system, as shown in Figure 1, in LTE system, MCH is transmission channel, feature is to carry out point-to-multipoint transmission, corresponding physical resource is that system is the multicast resource that MBMS transmission business (MTCH) is distributed, and a MCH is carried on some multicast resources, and these multicast resources comprise several MBSFN frames and MBSFN subframe.In figure, with the radio frames of oblique line, be non-MBSFN frame, blank radio frames is MBSFN frame; In MBSFN frame, the wireless sub-frame of grey is the subframe of bearer service not, fixing need not, and be non-MBSFN subframe with the wireless sub-frame of oblique line, blank wireless sub-frame is MBSFN subframe.The configuration of these multicast resources comprises radio frames allocation model and wireless sub-frame allocation model, the multicast resource in each MBSFN region can be take subframe and according to certain pattern, is divided into a plurality of groups as unit, each group can form a MCH, or a plurality of groups form a MCH.The pattern using when each MCH forms so is just called the MSAP (MBSFN SubframeAllocation Pattern) of this MCH, and a set of MSAP describes the physical resource of a MCH channel.Can there be one or more MCH in each MBSFN region, and the collocation method of each MCH multicast resource is to configure a set of MSAP for each MCH.
In a MSAP occasion, can send a plurality of MTCH and dynamic scheduling information, can also comprise MCCH, dynamic scheduling information can carry and be used in MAC control section (MAC control element), or be carried on independent logic channel multicast scheduling channel (MSCH, Multicast schedulingchannel), a MSAP occasion time span is exactly a dispatching cycle, also referred to as a dynamic dispatching cycle.Article one, MCH has distributed the one or more MBSFN subframes in one or more MBSFN frames by MSAP, and the subframe that wherein adopts multicast pattern to send is called MBSFN subframe, and the frame that contains MBSFN subframe is called MBSFN frame.
On each the MSAP occasion configuring at a MCH, carried dynamic scheduling information, carry MTCH to the map information of auxiliary MSAP subframe, this map information is determined by means of the MBSFN subframe numeral index relation within a dispatching cycle, UE reads dynamic scheduling information can know which MBSFN subframe each MTCH is dispensed in, UE can read its interested MTCH in corresponding MBSFN subframe, and ignore, do not need the MBSFN subframe that reads, thereby improve the MBMS business receiving efficiency of UE, save the power consumption of UE.
In existing LTE technology, a plurality of logic channels are by the multiplexing MCH channel of following mode: a corresponding Transmission Time Interval (TTI) of subframe, in a TTI, can send a transmission data block (TB, Transport Block), the corresponding medium access control layer protocol data cell (MAC PDU) of each transmission data block.Fig. 2 is the structural representation of MBMS business MAC PDU, as shown in Figure 2, in a MAC PDU, can comprise a plurality of service data units (MAC SDU), these MAC SDU can be from different logic channels, and possible logic channel comprises MTCH, MCCH, MSCH etc.These data from Different Logic channel send after being serially connected in MAC PDU together on physical channel.In order to distinguish the MAC SDU from Different Logic channel, in MAC PDU, carried identification information, as the data block of the sign of logic channel for receiving terminal difference Different Logic channel.
Dynamic multiplexing to MBMS business, within a dispatching cycle, a MTCH continuous transmission of data of a MBMS business in other words, that is to say, the continuous MBSFN sub-frame resources that takies MCH channel of data of a business, until this business needs the business datum sending to be all sent within this dispatching cycle.The data of different business can send in same MBSFN subframe.That is to say in same MAC PDU, there is the transmission that is serially connected of business datum from different business.Above-mentioned business sending order can be by MCCH channel or other signaling to receiving terminal.Fig. 3 is the structural representation of MBMS business MAC PDU, and as shown in Figure 3, E (Extension) field, in order to identify in MAC prefix whether comprise Length Indication field, if E=1 shows that MAC head is expanded, comprises Length Indication field in MAC prefix; Otherwise, show that MAC head is not expanded, in MAC prefix, do not comprise Length Indication field.For with clean culture DSCH Downlink Shared Channel (DL-SCH, DownLink-Shared Channel) the MAC head on is consistent, MAC data segment, length indication field can be 15bits or 7bits, concrete value can be determined by F (Flag) flag bit in MAC prefix, F=1, MAC data segment, length indication field is 15Bits; F=0, MAC data segment, length indication field is 7bits.The effect of MAC data segment, length field is to realize the demarcation of different MAC SDU in MAC PDU to process.For MAC control element, MAC head adopts the field length indication (7bits or 15bits) identical with MAC SDU.R (Reserved) is for retaining position.
In LTE system, transmission channel generates transmission block and sends to physical channel, physical channel carries out physical channel processing to transmission data block, in LTE system, coding and modulation scheme (MCS have been defined, Modulation and Coding Scheme) concept, MCS has comprised the parameters such as coding and the mode of modulating, speed.
In LTE system, there are one or more MCH in a MBSFN region at present.In a MCH, can be by the service integration with same services quality (QoS) together.The general corresponding different MTCH (being equivalent to different channel) of different MBMS business, in order to distinguish MTCH, can adopt the Logic Channel Identifier (LCID) in MAC PDU to indicate.LCID length is 5bits, removes some values of taking, can actually for the LCID of MTCH only have more than 10, and the MTCH value therefore obtaining is like this limited, cannot identify more channel.For the situation that has a plurality of MCH, there is same problem.
Summary of the invention
In view of this, main purpose of the present invention is to provide a kind of sign and method of reseptance and device of multimedia broadcast multi-broadcasting business, can identify each MBMS business in MBSFN region, makes UE accurately receive corresponding MBMS business.
For achieving the above object, technical scheme of the present invention is achieved in that
An identification method for multimedia broadcast multi-broadcasting business, comprising:
Logic channel or the unique Logic Channel Identifier LCID information of clean culture logical channel assignment for each MBMS.
Preferably, the logic channel of described MBMS comprises multicast service channel MTCH, multicast service channel MCCH, MAC control section or the multicast scheduling channel MSCH at MBMS business place.
Preferably, described method also comprises:
Described LCID information and the MBMS business identifying thereof are carried in Multicast Channel MCH together.
Preferably in, described method also comprises:
The common identification information of each MBMS business using described MCH identification information in described MCH.
Preferably, together with the MBMS business that described LCID information and MCH identification information identify with it, be carried in Service Data Unit SDU.
Preferably in, described method also comprises:
In multicast control channel MCCH or dynamic scheduling information, carry the positional information of MBMS business and the LCID information of correspondence thereof and the multicast subframe at MCH identification information place.
Preferably, described LCID information comprises unicast service Logic Channel Identifier and MBMS service logical channels sign, is respectively used to identify multiplexing unicast service and MBMS business.
Preferably, described MCH identification information comprises the Physical Multicast Channel PMCH identification information that carries described MCH.
A method of reseptance for multimedia broadcast multi-broadcasting business, comprising:
Receive the information of the corresponding relation of MBMS business and LCID information and MCH identification information; And
According to the corresponding LCID information of MBMS business and the MCH identification information of user's request, monitor MCCH or the dynamic scheduling information of described MCH, obtain the LCID information of MBMS business and the subframe position at MCH identification information place of user's request, monitor described subframe, according to LCID information and the MCH identification information of the MBMS business of user's request, obtain described MBMS business.
An identity device for multimedia broadcast multi-broadcasting business, comprising:
Allocation units, are used to logic channel or the unique Logic Channel Identifier LCID information of clean culture logical channel assignment of each MBMS.
Preferably, the logic channel of described MBMS comprises multicast service channel MTCH, multicast service channel MCCH, MAC control section or the multicast scheduling channel MSCH at MBMS business place.
Preferably, described device also comprises:
The first load bearing unit, for being carried on together Multicast Channel MCH by described LCID information and the MBMS business that identifies thereof.
Preferably, described device also comprises:
Identify unit, for using described MCH identification information as the common identification information of each MBMS business of described MCH.
Preferably, together with the MBMS business that described the first load bearing unit identifies described LCID information and MCH identification information with it, be carried in Service Data Unit SDU.
Preferably, described device also comprises:
The second load bearing unit, for by the positional information of MBMS business and the LCID information of correspondence and the multicast subframe at MCH identification information place, is carried in MCCH or dynamic scheduling information.
Preferably, described LCID information comprises unicast service Logic Channel Identifier and MBMS service logical channels sign, is respectively used to identify multiplexing unicast service and MBMS business.
Preferably, described MCH identification information comprises the Physical Multicast Channel PMCH identification information that carries described MCH.
A receiving system for multimedia broadcast multi-broadcasting business, comprising:
Receiving element, for receiving the information of the corresponding relation of MBMS business and LCID information and MCH identification information;
The first monitoring unit, for the corresponding LCID information of MBMS business and the MCH identification information of asking according to user, monitor MCCH or the dynamic scheduling information of described MCH, obtain the LCID information of MBMS business and the subframe position at MCH identification information place of user's request; And
The second monitoring unit, for the described subframe at the MBMS business place of monitoring users request, obtains described MBMS business according to LCID information and the MCH identification information of the MBMS business of user's request.
In the present invention, while having carried a plurality of MBMS business in MCH, be the unique LCID of each MBMS business setting, simultaneously, using the identification information of this MCH also common identification information of all MBMS business in this MCH, like this, while comprising a plurality of MCH in MBSFN region, although the LCID in each MCH is identical, but because the MCH under it is different, therefore, can go out each MBMS business in each MCH by unique identification, the MBMS business channels number of the support in LTE system is increased greatly.
Accompanying drawing explanation
Fig. 1 is the structural representation of MCH in LTE system;
Fig. 2 is the structural representation of MBMS business MAC PDU;
Fig. 3 is that MCCH of the present invention be take subcarrier or the cluster of subcarriers subframe structure schematic diagram when unit carries;
Fig. 4 is the flow chart of the identification method of multimedia broadcast multi-broadcasting business of the present invention;
Fig. 5 is the flow chart of the method for reseptance of multimedia broadcast multi-broadcasting business of the present invention;
Fig. 6 is the composition structural representation of the identity device of multimedia broadcast multi-broadcasting business of the present invention;
Fig. 7 is the composition structural representation of the receiving system of multimedia broadcast multi-broadcasting business of the present invention.
Embodiment
Basic thought of the present invention is: while having carried a plurality of MBMS business in MCH, for the unique LCID of each MBMS business setting, meanwhile, using the identification information of this MCH also common identification information of all MBMS business in this MCH, like this, when MBSFN region comprises a plurality of MCH, although the LCID in each MCH is identical, because the MCH under it is different, therefore, can go out each MBMS business in each MCH by unique identification, the MBMS business channels number of the support in LTE system is increased greatly.
For making the object, technical solutions and advantages of the present invention clearer, by the following examples and with reference to accompanying drawing, the present invention is described in more detail.
Fig. 4 is the flow chart of the identification method of multimedia broadcast multi-broadcasting business of the present invention, and as shown in Figure 4, the identification method of multimedia broadcast multi-broadcasting business of the present invention comprises the following steps:
Step S401: when initiation MBMS business is set up, one or more MCH are put into by one or more MBMS business programs (channel) in base station.Be about to, in the SDU in the TB of MBMS service bearer in MCH, for each SDU, carry a MBMS business (MTCH).
Step S402: base station is each MBMS business program (channel) assignment logic channel logo LCID, and preserve MBMS business tine sign and { MCH ID, the corresponding relation of LCID}.In the present invention, using the identification information of the MCH at MBMS business program place also as one of identification information of MBMS business, unique identification MBMS business together with distributing to the LCID of this MBMS business.In LTE system, MBMS business with MCH ID, the corresponding relation of LCID} can be by base station or terminal dynamic setting, this corresponding relation need to be notified relevant base station or terminal, so that the correct sending and receiving MBMS of base station and terminal business.
Step S403: the MBMS business SDU that base station will send adds { MCH ID, LCID} label, composition MAC PDU, form transmission block TB, in multicast subframe, transmit, and preserve each in MCCH or dynamic scheduling information { MCH ID, the multicast subframe positional information that LCID} is corresponding.
Fig. 5 is the flow chart of the method for reseptance of multimedia broadcast multi-broadcasting business of the present invention, and as shown in Figure 5, the method for reseptance of multimedia broadcast multi-broadcasting business of the present invention comprises the following steps:
Step S501: when user starts to receive MBMS business, or user is while changing channel in the process that receives MBMS business, and the content identification of the MBMS business that UE receives active user's wish sends to MAC layer or the physical layer of UE.
Receive after user's MBMS service request, the content identification of the MBMS business that UE asks according to user, as LCID and the MCH ID of this MBMS business are determined in the content identification of the MBMS business such as program code in the programm name of MBMS business program, channel and electronic program list.As previously mentioned, MBMS business is with { UE is easy to match this MBMS business corresponding { MCH ID, LCID} according to the content identification information of MBMS business for MCH ID, the information from base station side notice UE of LCID} corresponding relation, or configured in advance is in UE.Determine MBMS business MCH ID, LCID}, be for determine carrying this MBMS business subframe position, thereby monitor this MBMS business, receive this MBMS business output display to user.
Step S502:UE MAC layer or physical layer find { MCH ID corresponding to this MBMS business according to the content identification of program, LCID}, and in MCCH or dynamic scheduling information, find and { MCH ID, the multicast subframe positional information at the transmission block place that LCID} is corresponding, the described transmission block of decoding, obtain MAC PDU, form SDU and issue terminal upper level applications.
Below, by specific embodiment, further illustrate the essence of technical solution of the present invention.
Embodiment mono-
If while only having a MCH in MBSFN region, the MBMS business (MTCH) in this MCH is only corresponding with Logic Channel Identifier (LCID), there is no the identification information of MCH ID.Concrete implementation step is as follows:
When 1, initiation MBMS business is set up, base station is carried on one or more MBMS business programs (channel) in a MCH.
2, base station is each MBMS business program (channel) assignment logic channel logo LCID, and preserves the corresponding relation of MBMS business tine sign and LCID.Consider available LCID limited amount in MAC PDU corresponding to LTE clean culture, need to redefine LCID.Specifically as shown in table 1:
| Index | LCID values |
| 00000 | MCCH |
| 00001 | MSCH or MBMS business scheduling info |
| 00010-11110 | MTCH |
| 11111 | Padding |
Table 1
Wherein, 00000 sign MCCH, for multicast control channel, MCCH logic channel message is used to indicate the configuration information of related physical Multicast Channel (PMCH), multicast transmission channel (MCH) and multicast service channel (MTCH), the control channel of MCH, for the carrying of control information.In MBMS business, the dynamic scheduling information of MTCH can carry by MAC control element or MSCH, 00001 sign MSCH or MBMS business scheduling info (MAC control element) is used to indicate the dynamic scheduling information of MTCH, this dynamic scheduling information is the corresponding relation of bearing MBMS service and LCID, the subframe position information of bearing MBMS service.11111 are used to indicate Padding, and Padding is for filling indication.Remaining 00010-11110, is used to indicate MTCH, i.e. MBMS business (channel).
3, the MBMS business SDU that base station will send adds LCID label, forms MAC PDU, forms transmission block TB, transmits, and in MCCH or dynamic scheduling information, preserve the multicast subframe positional information that each LCID is corresponding in multicast subframe.
4, when user starts to receive described BroadCast MultiCast Service, or user is while changing channel in receiving the process of described BroadCast MultiCast Service, and the content identification of the BroadCast MultiCast Service that UE receives active user's wish sends to MAC layer or the physical layer of described UE.
5, MAC layer or physical layer find corresponding LCID according to the content identification of program, and in MCCH or dynamic scheduling information, find the multicast subframe positional information at the transmission block place corresponding with LCID, the described transmission block of decoding, obtain MAC PDU, form SDU and issue UE upper level applications (playing the application program of MBMS business), resolve MBMS business datum and show MBMS business to this user.
Embodiment bis-
If while having a plurality of MCH in MBSFN region, MBMS business (MTCH) with MCH ID, LCID} is corresponding one by one, implementation step is as follows:
When 1, initiation MBMS business is set up, base station is that each broadcast multi-broadcast business program distributes Multicast Channel MCH, and preserves the corresponding relation between described broadcast multi-broadcast business program and MCH.
2, base station is each MBMS business program (channel) assignment logic channel logo LCID in different MCH, and preserves MBMS business tine sign and { MCH ID, the corresponding relation of LCID}.The definition of LCID is as shown in table 1.In different MCH, the definition of LCID is identical, but because MBMS business setting has MCH ID, therefore, { MCH ID, a LCID} energy MBMS business of unique identification (MTCH), so just can utilize existing MAC LCID to design to identify a plurality of MBMS business (MTCH).
3, the MBMS business SDU that base station will send adds { MCH ID, LCID} label, composition MAC PDU, form transmission block-TB, in multicast subframe, transmit, and preserve each in MCCH or dynamic scheduling information { MCH ID, the multicast subframe positional information that LCID} is corresponding.
4, when user starts to receive described BroadCast MultiCast Service, or user is while changing channel in receiving the process of described BroadCast MultiCast Service, and the content identification of the BroadCast MultiCast Service that UE receives active user's wish sends to MAC layer or the physical layer of UE.
5, MAC layer or physical layer find corresponding { MCH ID according to the content identification of program, LCID}, and in MCCH or dynamic scheduling information, find and { MCH ID, the multicast subframe positional information at the transmission block place that LCID} is corresponding, the described transmission block of decoding, obtain MAC PDU, form SDU and issue terminal upper level applications (playing the application program of MBMS business), resolve MBMS business datum and show MBMS business to this user.
Embodiment tri-
If while having a plurality of MCH in MBSFN region, the corresponding PMCH of general MCH, therefore also can replace MCH ID with PMCH index, MBMS business (MTCH) with PMCHindex, LCID} is corresponding one by one, implementation step is as follows:
When 1, initiation MBMS business is set up, base station is that each broadcast multi-broadcast business program distributes Multicast Channel MCH, and preserves the corresponding relation between described broadcast multi-broadcast business program and PMCH.
2, base station is each MBMS business program (channel) assignment logic channel logo LCID in different MCH, and preserves MBMS business tine sign and { PMCH index, the corresponding relation of LCID}.The definition of LCID is as shown in table 1.In different MCH, the definition of LCID is identical, but { PMCHindex, the MBMS business (MTCH) that LCID} is corresponding is different to difference, so just can utilize existing MAC LCID to design to identify a plurality of MBMS business (MTCH).
3, the MBMS business SDU that base station will send adds { PMCH index, LCID} label, composition MAC PDU, form transmission block-TB, in multicast subframe, transmit, and preserve each in MCCH or dynamic scheduling information { PMCH index, the multicast subframe positional information that LCID} is corresponding.
4, when user starts to receive described BroadCast MultiCast Service, or user is while changing channel in receiving the process of described BroadCast MultiCast Service, and the content identification of the BroadCast MultiCast Service that UE is receiving active user sends to MAC layer or the physical layer of UE.
5, MAC layer or physical layer find corresponding { PMCH index according to the content identification of program, LCID}, and in MCCH or dynamic scheduling information, find and { PMCH index, the multicast subframe positional information at the transmission block place that LCID} is corresponding, the described transmission block of decoding, obtain MAC PDU, form SDU and issue terminal upper level applications (playing the application program of MBMS business), resolve MBMS business datum and show MBMS business to this user.
Embodiment tetra-
Consideration in MAC PDU, have simultaneously multicast service multiplexing with unicast service together with, now the LCID value of MACPDU need to redefine, so that distinguish multicast and unicast service.Implementation step is as follows:
When 1, initiation MBMS business is set up, base station is that each broadcast multi-broadcast business program distributes Multicast Channel MCH, and preserves the corresponding relation between described broadcast multi-broadcast business program and MCH.
2, base station is each MBMS business program (channel) assignment logic channel logo LCID in different MCH, and preserves MBMS business tine sign and { MCH ID, the corresponding relation of LCID}.The definition of LCID is as shown in table 2.In table 2, considered the relevant MAC PDU design (as different MAC control element) of unicast service, when clean culture and multicast service during multiplexing transmission, can be distinguished according to the value of LCID on identical MAC PDU.
| Index | LCID values |
| 00000 | CCCH |
| 00001-01010 | MTCH or Identity of the logical channel |
| 01011 | MCCH |
| 01100-11010 | Reserved |
| 11011 | MSCH or MBMS business scheduling info |
| 11100 | UE Contention Resolution Identity |
| 11101 | Timing Advance Command |
| 11110 | DRX Command |
| 11111 | Padding |
Table 2
In table 2, sign " 00001-01010 " and sign " 01100-11010 " are respectively as the LCID of multicast service and clean culture, for the clean culture in each MCH and multicast service, for it selects corresponding LCID, owing to being also provided with the MCH ID of its place MCH in clean culture and multicast service, therefore, each clean culture and multicast service in MBSFN region, all there is unique identification information corresponding with it, facilitate UE to receive these clean cultures and multicast service.
3, the MBMS business SDU that base station will send adds { MCH ID, LCID} label, composition MAC PDU, form transmission block TB, in multicast subframe, transmit, and preserve each in MCCH or dynamic scheduling information { MCH ID, the multicast subframe positional information that LCID} is corresponding.
4, when user starts to receive described BroadCast MultiCast Service, or user is while changing channel in receiving the process of described BroadCast MultiCast Service, and the content identification of the BroadCast MultiCast Service that UE receives active user's wish sends to MAC layer or the physical layer of described terminal.
5, MAC layer or physical layer find corresponding { MCH ID according to the content identification of program, LCID}, and in MCCH or dynamic scheduling information, find and { MCH ID, the multicast subframe positional information at the transmission block place that LCID} is corresponding, the described transmission block of decoding, obtain MAC PDU, form SDU and issue terminal upper level applications (playing the application program of MBMS business), resolve MBMS business datum and show MBMS business to this user.
It should be noted that, in aforesaid embodiment, MBMS business and { MCH ID, the corresponding relation of LCID} or LCID, by base station, notify in UE, before this corresponding relation change, this corresponding relation is stored in UE always, UE is according to MBMS business and { MCH ID, the corresponding relation reception MBMS business of LCID} or LCID.When MBMS business with MCH ID, when the corresponding relation of LCID} or LCID is constant, by MBMS business with { MCH ID, the corresponding relation of LCID} or LCID is disposed in UE.
Fig. 6 is the composition structural representation of the identity device of multimedia broadcast multi-broadcasting business of the present invention, as shown in Figure 6, the identity device of multimedia broadcast multi-broadcasting business of the present invention comprises allocation units 60 and identify unit 61, wherein, allocation units 60 are used to the unique Logic Channel Identifier LCID information of each multimedia broadcast multi-broadcasting business MBMS traffic assignments being carried in Multicast Channel MCH; Identify unit 61 is for using described MCH identification information as the common identification information of each MBMS business of described MCH.
As shown in Figure 6, the identity device of multimedia broadcast multi-broadcasting business of the present invention also comprises the first load bearing unit 62, together with the MBMS business that described LCID information and MCH identification information are identified with it, is carried on Service Data Unit SDU.
As shown in Figure 6, the identity device of multimedia broadcast multi-broadcasting business of the present invention also comprises the second load bearing unit 63, for by the positional information of MBMS business and the LCID information of correspondence and the multicast subframe at MCH identification information place, be carried in MCCH or dynamic scheduling information.
Those skilled in the art are to be understood that, identify unit 61, the first load bearing unit 62 and the second load bearing unit 63 in Fig. 6 be the non-essential features that realizes the identity device of multimedia broadcast multi-broadcasting business of the present invention all, is only the technical characterictic of optimizing respectively the identity device of multimedia broadcast multi-broadcasting business of the present invention.
The practical function that it will be appreciated by those skilled in the art that the each processing unit in the identity device of the multimedia broadcast multi-broadcasting business shown in Fig. 6 can be understood with reference to the associated description in Fig. 4 and embodiment mono-to embodiment tetra-.In the identity device of the multimedia broadcast multi-broadcasting business shown in Fig. 6, the function of each unit can realize by the program running on processor, also can realize by concrete logical circuit.
Fig. 7 is the composition structural representation of the receiving system of multimedia broadcast multi-broadcasting business of the present invention, as shown in Figure 7, the receiving system of multimedia broadcast multi-broadcasting business of the present invention comprises receiving element 70, the first monitoring unit 71 and the second monitoring unit 72, wherein, receiving element 70 is for receiving the information of the corresponding relation of MBMS business and LCID information and MCH identification information; MBMS business corresponding LCID information and the MCH identification information of the first monitoring unit 71 for asking according to user, monitor MCCH or the dynamic scheduling information of described MCH, obtain the LCID information of MBMS business and the subframe position at MCH identification information place of user's request; The second monitoring unit 72, for the described subframe at the MBMS business place of monitoring users request, obtains described MBMS business according to LCID information and the MCH identification information of the MBMS business of user's request.
The practical function that it will be appreciated by those skilled in the art that the each processing unit in the receiving system of the multimedia broadcast multi-broadcasting business shown in Fig. 7 can be understood with reference to the associated description in Fig. 5 and embodiment mono-to embodiment tetra-.In the receiving system of the multimedia broadcast multi-broadcasting business shown in Fig. 7, the function of each unit can realize by the program running on processor, also can realize by concrete logical circuit.
The above, be only preferred embodiment of the present invention, is not intended to limit protection scope of the present invention.
Claims (10)
1. an identification method for multimedia broadcast multi-broadcasting business, is characterized in that, comprising:
Logic channel or the unique Logic Channel Identifier LCID information of clean culture logical channel assignment for each multimedia broadcast multi-broadcasting business MBMS;
Using the common identification information of the identification information of Multicast Channel MCH each MBMS business in described MCH;
Preserve the corresponding relation of MBMS business tine sign, described MCH identification information and described LCID information;
Together with the MBMS business that described LCID information and MCH identification information are identified with it, be carried in Service Data Unit SDU;
In multicast control channel MCCH or dynamic scheduling information, carry the multicast subframe positional information at MBMS business and described MCH identification information and described LCID information place.
2. method according to claim 1, is characterized in that, the logic channel of described MBMS comprises multicast service channel MTCH, multicast control channel MCCH, MAC control section or the multicast scheduling channel MSCH at MBMS business place.
3. method according to claim 1, is characterized in that, described LCID information comprises unicast service Logic Channel Identifier and MBMS service logical channels sign, is respectively used to identify multiplexing unicast service and MBMS business.
4. method according to claim 1, is characterized in that, described MCH identification information comprises the Physical Multicast Channel PMCH identification information that carries described MCH.
5. a method of reseptance for multimedia broadcast multi-broadcasting business, is characterized in that, comprising: the information that receives the corresponding relation of MBMS business tine sign and LCID information and MCH identification information; And
According to the MBMS business tine sign of user's request, search corresponding LCID information and MCH identification information, monitor multicast control channel MCCH or the dynamic scheduling information of described MCH, find the LCID information of MBMS business tine sign of user request and the subframe position at MCH identification information place, monitor described subframe, according to LCID information and the MCH identification information of the MBMS business tine sign of user's request, obtain described MBMS business.
6. an identity device for multimedia broadcast multi-broadcasting business, is characterized in that, comprising:
Allocation units, are used to logic channel or the unique Logic Channel Identifier LCID information of clean culture logical channel assignment of each MBMS;
Identify unit, for using Multicast Channel MCH identification information as the common identification information of each MBMS business of described MCH; And preserve the corresponding relation of MBMS business tine sign and LCID information and MCH identification information;
The first load bearing unit, is carried in Service Data Unit SDU together with the MBMS business that described LCID information and MCH identification information are identified with it;
The second load bearing unit, for by the positional information of MBMS business and the LCID information of correspondence and the multicast subframe at MCH identification information place, is carried in MCCH or dynamic scheduling information.
7. device according to claim 6, is characterized in that, the logic channel of described MBMS comprises multicast service channel MTCH, multicast control channel MCCH, MAC control section or the multicast scheduling channel MSCH at MBMS business place.
8. device according to claim 6, is characterized in that, described LCID information comprises unicast service Logic Channel Identifier and MBMS service logical channels sign, is respectively used to identify multiplexing unicast service and MBMS business.
9. device according to claim 6, is characterized in that, described MCH identification information comprises the Physical Multicast Channel PMCH identification information that carries described MCH.
10. a receiving system for multimedia broadcast multi-broadcasting business, is characterized in that, comprising:
Receiving element, for receiving the information of the corresponding relation of MBMS business tine sign and LCID information and MCH identification information;
The first monitoring unit, for the MBMS business tine sign according to user's request, search corresponding LCID information and MCH identification information, monitor multicast control channel MCCH or the dynamic scheduling information of described MCH, find the LCID information of MBMS business tine sign of user request and the subframe position at MCH identification information place; And
The second monitoring unit, for the described subframe at the MBMS business place of monitoring users request, obtains described MBMS business according to LCID information and the MCH identification information of the MBMS business tine sign of user's request.
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| CN105264921A (en) * | 2013-09-26 | 2016-01-20 | 华为技术有限公司 | Resource allocation method, device, and system |
| US10389490B2 (en) | 2013-10-10 | 2019-08-20 | Futurewei Technologies, Inc. | System and method for media access control transport blocks |
| EP3001703A1 (en) * | 2014-09-29 | 2016-03-30 | Alcatel Lucent | Coverage enhancement for multicast in a cellular network |
| WO2016183800A1 (en) * | 2015-05-19 | 2016-11-24 | 华为技术有限公司 | Data transmission method and apparatus |
| CN107046697B (en) * | 2017-05-04 | 2019-12-13 | 电信科学技术研究院 | method and equipment for transmitting MAC control unit |
| CN113382388B (en) * | 2018-11-02 | 2023-08-04 | 华为技术有限公司 | Transmission method and communication device |
| CN113950042A (en) * | 2020-07-17 | 2022-01-18 | 维沃移动通信有限公司 | Identification method, sending method and related equipment |
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