CN101931882A - 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 Broadcast Multicast Service) sign and reception technique, relate in particular to sign and the method for reseptance and the device of multimedia broadcast multi-broadcasting business in a kind of Long Term Evolution (LTE, Long Term Evolution) 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 appearred, for example, video conference, television broadcasting, video request program, advertisement, online education, interactive game etc., this has satisfied the business demand that the mobile subscriber constantly rises on the one hand, also brings new business growth point for mobile operator simultaneously.These mobile data multimedia services require a plurality of users can receive identical data simultaneously, compare with general data service, have characteristics such as data volume is big, longer duration, delay sensitive.
In order to effectively utilize mobile network resource, third generation partner program (3GPP, 3rd Generation Partnership Project) the MBMS business has been proposed, this business is a kind of technology that transmits data 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 the classes of messages multicast and the broadcasting of plain text low rate, but also can realize the broadcasting and the multicast of high-speed multimedia business, multiple rich 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 professional prospect.
In the LTE system, the 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 the multicast pattern to send is also referred to as the MBSFN business, can be after identical modulation be adopted in a plurality of sub-districts coded format, adopt identical physical resource generation identical content, the feature of the professional many cell transmission of MBMS: in the inter-sync transmission of MBSFN zone; Support the professional transmission of many cell MBMSs to merge; Multicast service channel (MTCH, Multicast Traffic Channel) and multicast control channel (MCCH, Multicast Control Channel) is mapped under multiple spot (p-T-m) pattern on Multicast Channel (MCH, the Multicast Chnanel) transmission channel putting; The MBSFN retaining zone, the MBSFN zone is by the semi-static configuration of Operation and Maintenance.The subscriber equipment of a plurality of like this sub-districts (UE, User equipment) can receive the identical MBMS business datum of a plurality of contents and carry out single frequency network (SFN, Single Frequency Network) and merge, thus the gain that improves received signal.A plurality of sub-districts of adopting identical physical resource and MBSFN sending mode to send the same MBMS business have constituted a MBSFN zone.A MBSFN zone comprises a plurality of sub-districts, possesses the data channel MTCH of a plurality of MBSFN business in identical MBSFN zone, and the control channel MCCH of MBSFN business can be multiplexed into a MCH.The MCCH in identical MBSFN zone and a plurality of MTCH, promptly many logic channels can be mapped on the same transmission channel MCH.
Fig. 1 is the structural representation of MCH in the LTE system, as shown in Figure 1, in the LTE system, MCH is a transmission channel, characteristics are the transmission of putting multiple spot, the 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.Among the figure, the radio frames of band oblique line is non-MBSFN frame, and blank radio frames is the MBSFN frame; In the MBSFN frame, the wireless sub-frame of grey is the subframe of bearer service not, fixing need not, and the wireless sub-frame of band oblique line is non-MBSFN subframe, blank wireless sub-frame is the 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 zone can be that unit is divided into a plurality of groups according to certain pattern with the subframe, each group can constitute a MCH, and perhaps a plurality of groups constitute a MCH.Employed pattern just was called the MSAP (MBSFN Subframe Allocation Pattern) of this MCH when each MCH constituted so, and a cover MSAP describes the physical resource of a MCH channel.Can there be one or more MCH in each MBSFN zone, and the collocation method of each MCH multicast resource is all to dispose a cover 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), perhaps be carried on independent logic channel multicast scheduling channel (MSCH, Multicast scheduling channel), a MSAP occasion time span is exactly a dispatching cycle, is also referred to as a dynamic dispatching cycle.Article one, MCH has distributed one or more MBSFN subframes in one or more MBSFN frames by MSAP, and the subframe that wherein adopts the multicast pattern to send is called the MBSFN subframe, and the frame that contains the MBSFN subframe is called the MBSFN frame.
On each MSAP occasion that MCH disposed, carried dynamic scheduling information, carry the map information of MTCH to auxiliary MSAP subframe, this map information is determined by means of the relation of the MBSFN subframe numeral index in a dispatching cycle, UE reads dynamic scheduling information can know which MBSFN subframe each MTCH is dispensed on, UE can read its interested MTCH on corresponding M BSFN subframe, do not need the MBSFN subframe that reads and ignore, thereby the professional receiving efficiency of the MBMS that improves UE, the power consumption of saving UE.
In existing LTE technology, a plurality of logic channels are by the multiplexing MCH channel of following mode: the 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 the professional MAC PDU of MBMS, 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.After being serially connected in MAC PDU, these data from the Different Logic channel on physical channel, send together.In order to distinguish MAC SDU from the Different Logic channel, carried identification information among the MAC PDU, be used for the data block of receiving terminal difference Different Logic channel as the sign of logic channel.
Dynamic multiplexing to the MBMS business, in a dispatching cycle, the MTCH continuous transmission of data of a MBMS business in other words, that is to say, the MBSFN sub-frame resources that takies the MCH channel that the data of a business are continuous, the whole transmission of business datum that needs to send in this dispatching cycle up to this business finishes.The data of different business can send in same MBSFN subframe.That is to say that the transmission that is serially connected of business datum from different business can be arranged among the same MAC PDU.Above-mentioned professional sending order can be given receiving terminal by MCCH channel or other signaling.Fig. 3 is the structural representation of the professional MAC PDU of MBMS, and as shown in Figure 3, E (Extension) field if E=1 shows that then the MAC head is expanded, promptly comprises the Length Indication field in the MAC prefix in order to whether to comprise the Length Indication field in the sign MAC prefix; Otherwise, show that the MAC head is not expanded, promptly do not comprise the Length Indication field in the MAC prefix.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 the MAC prefix, F=1, then MAC data segment, length indication field is 15Bits; F=0, then 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 among MAC PDU processing.For MAC control element, the MAC head adopts the field length indication (7bits or 15bits) identical with MAC SDU.R (Reserved) is for keeping the position.
In the LTE system, transmission channel generates transmission block and sends to physical channel, physical channel carries out physical channel to transmission data block to be handled, in the LTE system, coding and modulation scheme (MCS have been defined, Modulation and Coding Scheme) notion, MCS has comprised coding and parameters such as the mode of modulating, speed.
In the LTE system, there are one or more MCH in a MBSFN zone at present.In a MCH, can be together with service integration with same services quality (QoS).The professional general corresponding different MTCH (being equivalent to different channel) of different MBMS in order to distinguish MTCH, can adopt the Logic Channel Identifier (LCID) among the MAC PDU to indicate.LCID length is 5bits, removes some values of taking, can have only more than 10 for the LCID that MTCH uses is actual, and therefore the MTCH value that obtains like this is limited, can't identify more channel.For the situation that a plurality of MCH are arranged, 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 the MBSFN zone, makes UE accurately receive corresponding M BMS business.
For achieving the above object, technical scheme of the present invention is achieved in that
A kind of identification method of multimedia broadcast multi-broadcasting business comprises:
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 the professional place of MBMS.
Preferably, described method also comprises:
Described LCID information and the MBMS business that is identified thereof are carried among the Multicast Channel MCH together.
Preferably in, described method also comprises:
With described MCH identification information as the professional common identification information of each MBMS among the described MCH.
Preferably, described LCID information and MCH identification information are carried among the Service Data Unit SDU with the MBMS business that it identified.
Preferably in, described method also comprises:
In multicast control channel MCCH or dynamic scheduling information, carry the positional information of the multicast subframe at professional and corresponding LCID information of MBMS and MCH identification information place.
Preferably, comprise unicast service Logic Channel Identifier and MBMS service logical channels sign in the described LCID information, be respectively applied for sign multiplexing unicast service and MBMS business.
Preferably, described MCH identification information comprises the Physical Multicast Channel PMCH identification information that carries described MCH.
A kind of method of reseptance of multimedia broadcast multi-broadcasting business comprises:
Receive the information of the corresponding relation of MBMS business and LCID information and MCH identification information; And
According to professional pairing LCID information of the MBMS of user's request and MCH identification information, monitor MCCH or the dynamic scheduling information of described MCH, obtain the LCID information of MBMS business of user request and the subframe position at MCH identification information place, monitor described subframe, obtain described MBMS business according to the LCID information and the MCH identification information of the MBMS business of user request.
A kind of identity device of multimedia broadcast multi-broadcasting business comprises:
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 the professional place of MBMS.
Preferably, described device also comprises:
First load bearing unit is used for described LCID information and the MBMS business that identified thereof are carried on Multicast Channel MCH together.
Preferably, described device also comprises:
Identify unit is used for described MCH identification information as the professional common identification information of each MBMS of described MCH.
Preferably, described first load bearing unit is carried on described LCID information and MCH identification information among the Service Data Unit SDU with the MBMS business that it identified.
Preferably, described device also comprises:
Second load bearing unit is used for the positional information of the multicast subframe at LCID information that MBMS is professional and corresponding and MCH identification information place, is carried in MCCH or the dynamic scheduling information.
Preferably, comprise unicast service Logic Channel Identifier and MBMS service logical channels sign in the described LCID information, be respectively applied for sign multiplexing unicast service and MBMS business.
Preferably, described MCH identification information comprises the Physical Multicast Channel PMCH identification information that carries described MCH.
A kind of receiving system of multimedia broadcast multi-broadcasting business comprises:
Receiving element is used to receive the information of the professional corresponding relation with LCID information and MCH identification information of MBMS;
First monitoring unit, be used for according to professional pairing LCID information of the MBMS of user's request and MCH identification information, monitor MCCH or the dynamic scheduling information of described MCH, obtain the LCID information of MBMS business of user request and the subframe position at MCH identification information place; And
Second monitoring unit is used for the described subframe at the professional place of MBMS of monitoring users request, obtains described MBMS business according to the LCID information and the MCH identification information of the MBMS business of user's request.
Among the present invention, in MCH, carry a plurality of MBMS when professional, be the unique LCID of each MBMS business setting, simultaneously, with the identification information of this MCH also as the common identification information of all MBMS business among this MCH, like this, when in the MBSFN zone, comprising a plurality of MCH, though the LCID among each MCH is identical, but because the MCH difference under it, therefore, the energy unique identification goes out each MBMS business among each MCH, and the MBMS business channels number of the support in the LTE system is increased greatly.
Description of drawings
Fig. 1 is the structural representation of MCH in the LTE system;
Fig. 2 is the structural representation of the professional MAC PDU of MBMS;
Subframe structure schematic diagram when Fig. 3 is the unit carrying for MCCH of the present invention with subcarrier or cluster of subcarriers;
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: carried a plurality of MBMS when professional in MCH, be the unique LCID of each MBMS business setting, simultaneously, with the identification information of this MCH also as the common identification information of all MBMS business among this MCH, like this, when in the MBSFN zone, comprising a plurality of MCH, though the LCID among each MCH is identical, because the MCH difference under it, therefore, the energy unique identification goes out each MBMS business among each MCH, and the MBMS business channels number of the support in the LTE system is increased greatly.
For making the purpose, 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 may further comprise the steps:
Step S401: when initiation MBMS business was set up, one or more MCH were put into one or more MBMS business programs (channel) in the base station.Be about to for each SDU, carry a MBMS business (MTCH) among the SDU among the TB of MBMS service bearer in MCH.
Step S402: the base station is each MBMS business program (channel) assignment logic channel logo LCID, and preserves MBMS business tine sign and { MCH ID, the corresponding relation of LCID}.Among the present invention, with the identification information of the MCH at MBMS business program place also as one of identification information of MBMS business, with the LCID unique identification MBMS business of distributing to this MBMS business.In the LTE system, MBMS professional with MCH ID, the corresponding relation of LCID} can dynamically be set by base station or terminal, this corresponding relation need be notified relevant base station or terminal, sends and receive the MBMS business so that base station and terminal are correct.
Step S403: the professional SDU of the MBMS that the base station will send adds { MCH ID, LCID} label, composition MAC PDU, form transmission block TB, in multicast subframe, transmit, and in MCCH or dynamic scheduling information, preserve each { MCH ID, the multicast subframe positional information of LCID} correspondence.
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 may further comprise the steps:
Step S501: when the user begins to receive the MBMS business, when perhaps the user changed channel in the process that receives the MBMS business, the content identification of the MBMS business that UE receives active user's desire sent to MAC layer or the physical layer of UE.
After receiving user's MBMS service request, UE determines the LCID and the MCH ID of this MBMS business according to the content identification of the MBMS business that the user asked as the content identification of the MBMS business such as program code in programm name, channel and the electronic program list of MBMS business program.As previously mentioned, MBMS is professional with { perhaps, configured in advance is in UE for MCH ID, the information from base station side notice UE of LCID} corresponding relation, and UE is easy to match this MBMS professional corresponding { MCH ID, LCID} according to the content identification information of MBMS business.Determine the MBMS business { MCH ID, LCID} be in order to determine the subframe position of this MBMS business of carrying, thereby monitor this MBMS business, receives the professional and output of this MBMS and be shown to the user.
Step S502:UE MAC layer or physical layer find professional corresponding { the MCH ID of this MBMS 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 of LCID} correspondence, the described transmission block of decoding, obtain MAC PDU, form SDU and issue the terminal upper level applications.
Below, further illustrate the essence of technical solution of the present invention by specific embodiment.
Embodiment one
If when having only a MCH in the MBSFN zone, the MBMS business (MTCH) among this MCH is only corresponding with Logic Channel Identifier (LCID), does not have the identification information of MCH ID.Concrete implementation step is as follows:
When 1, initiation MBMS business was set up, the base station was carried on one or more MBMS business programs (channel) among the MCH.
2, the 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.Available LCID limited amount among the MAC PDU of consideration LTE clean culture correspondence need redefine LCID.Specifically as shown in table 1:
Table 1
Wherein, 00000 sign MCCH is multicast control channel, and 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), be the control channel of MCH, be used for the carrying of control information.In the MBMS business, the dynamic scheduling information of MTCH can be by MAC control element or MSCH carrying, the dynamic scheduling information that the 00001 sign MSCH or professional scheduling info of MBMS (MAC control element) is used to indicate MTCH, this dynamic scheduling information promptly carries the corresponding relation of MBMS business and LCID, the subframe position information of carrying MBMS business.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 that will send professional SDU in base station adds the LCID label, forms MAC PDU, forms transmission block TB, transmits in multicast subframe, and preserve the multicast subframe positional information of each LCID correspondence in MCCH or dynamic scheduling information.
4, begin to receive described BroadCast MultiCast Service as the user, when perhaps the user changed channel in the process that receives described BroadCast MultiCast Service, the content identification of the BroadCast MultiCast Service that UE receives active user's desire sent 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 the MBMS business datum and show the MBMS business to this user.
Embodiment two
When if a plurality of MCH is arranged in the MBSFN zone, MBMS business (MTCH) with MCH ID, LCID} are corresponding one by one, and implementation step is as follows:
When 1, initiation MBMS business was set up, the base station was that each broadcast multi-broadcast business program distributes Multicast Channel MCH, and preserves the corresponding relation between described broadcast multi-broadcast business program and the MCH.
2, the base station is each MBMS business program (channel) assignment logic channel logo LCID among the 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 the MBMS business setting has MCH ID, therefore, { MCH ID, a LCID} energy MBMS business of unique identification (MTCH) so just can be utilized existing MAC LCID to design and identify a plurality of MBMS business (MTCH).
3, the MBMS that will send professional SDU in base station adds that { MCH ID, LCID} label are formed MAC PDU, form transmission block-TB, in multicast subframe, transmit, and in MCCH or dynamic scheduling information, preserve each { MCH ID, the multicast subframe positional information of LCID} correspondence.
4, begin to receive described BroadCast MultiCast Service as the user, when perhaps the user changed channel in the process that receives described BroadCast MultiCast Service, the content identification of the BroadCast MultiCast Service that UE receives active user's desire sent 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 of LCID} correspondence, 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 the MBMS business datum and show the MBMS business to this user.
Embodiment three
When if a plurality of MCH is arranged in the MBSFN zone, therefore the corresponding PMCH of a general MCH also can replace MCH ID with PMCH index, MBMS business (MTCH) with PMCHindex, LCID} are corresponding one by one, and implementation step is as follows:
When 1, initiation MBMS business was set up, the base station was that each broadcast multi-broadcast business program distributes Multicast Channel MCH, and preserves the corresponding relation between described broadcast multi-broadcast business program and the PMCH.
2, the base station is each MBMS business program (channel) assignment logic channel logo LCID among the 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) of LCID} correspondence is different to difference, so just can utilize existing MAC LCID to design and identify a plurality of MBMS business (MTCH).
3, the MBMS that will send professional SDU in base station adds that { PMCH index, LCID} label are formed MAC PDU, form transmission block-TB, in multicast subframe, transmit, and in MCCH or dynamic scheduling information, preserve each { PMCH index, the multicast subframe positional information of LCID} correspondence.
4, begin to receive described BroadCast MultiCast Service as the user, when perhaps the user changed channel in the process that receives described BroadCast MultiCast Service, the content identification of the BroadCast MultiCast Service that UE is receiving the active user sent 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 of LCID} correspondence, 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 the MBMS business datum and show the MBMS business to this user.
Embodiment four
Consideration has simultaneously in MAC PDU that multicast service and unicast service are multiplexing is in the same place, and this moment, the LCID value of MAC PDU need redefine, so that differentiation multicast and unicast service.Implementation step is as follows:
When 1, initiation MBMS business was set up, the base station was that each broadcast multi-broadcast business program distributes Multicast Channel MCH, and preserves the corresponding relation between described broadcast multi-broadcast business program and the MCH.
2, the base station is each MBMS business program (channel) assignment logic channel logo LCID among the 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.
Table 2
In the table 2, sign " 00001-01010 " and sign " 01100-11010 " are respectively as the LCID of multicast service and clean culture, for clean culture among each MCH and multicast service, selecting corresponding LCID for use for it gets final product, since also be provided with the MCH ID of its place MCH in clean culture and the multicast service, therefore, each clean culture and multicast service in the MBSFN zone, all there is unique identification information corresponding, makes things convenient for UE to receive these clean cultures and multicast service with it.
3, the MBMS that will send professional SDU in base station adds that { MCH ID, LCID} label are formed MAC PDU, form transmission block TB, in multicast subframe, transmit, and in MCCH or dynamic scheduling information, preserve each { MCH ID, the multicast subframe positional information of LCID} correspondence.
4, begin to receive described BroadCast MultiCast Service as the user, when perhaps the user changed channel in the process that receives described BroadCast MultiCast Service, the content identification of the BroadCast MultiCast Service that UE receives active user's desire sent to the 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 of LCID} correspondence, 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 the MBMS business datum and show the MBMS business to this user.
Need to prove, among the aforesaid embodiment, professional and { the MCH ID of MBMS, the corresponding relation of LCID} or LCID, notify among the UE by the base station, before this corresponding relation change, this corresponding relation is stored among the UE always, UE is professional with { MCH ID, the corresponding relation of LCID} or LCID receives the MBMS business according to MBMS.When MBMS professional with MCH ID, when the corresponding relation of LCID} or LCID is constant, that MBMS is professional with { MCH ID, the corresponding relation of LCID} or LCID is disposed among the UE and gets final product.
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 that is carried among the Multicast Channel MCH; Identify unit 61 is used for described MCH identification information as the professional common identification information of each MBMS of described MCH.
As shown in Figure 6, the identity device of multimedia broadcast multi-broadcasting business of the present invention also comprises first load bearing unit 62, is used for described LCID information and MCH identification information are carried on Service Data Unit SDU with the MBMS business that it identified.
As shown in Figure 6, the identity device of multimedia broadcast multi-broadcasting business of the present invention also comprises second load bearing unit 63, be used for the positional information of the multicast subframe at LCID information that MBMS is professional and corresponding and MCH identification information place, be carried in MCCH or the dynamic scheduling information.
Those skilled in the art are to be understood that, the essential features of the identity device of the identify unit 61 among Fig. 6, first load bearing unit 62 and all non-realization of second load bearing unit 63 multimedia broadcast multi-broadcasting business of the present invention only is a technical characterictic of optimizing the identity device of multimedia broadcast multi-broadcasting business of the present invention respectively.
The realization function that it will be appreciated by those skilled in the art that the each processing unit in the identity device of multimedia broadcast multi-broadcasting business shown in Figure 6 can be understood with reference to the associated description among Fig. 4 and the embodiment one to embodiment four.The function of each unit can realize by the program that runs on the processor in the identity device of multimedia broadcast multi-broadcasting business shown in Figure 6, 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, first monitoring unit 71 and second monitoring unit 72, wherein, receiving element 70 is used to receive the information of the professional corresponding relation with LCID information and MCH identification information of MBMS; First monitoring unit 71 is used for according to professional pairing LCID information of the MBMS of user's request and MCH identification information, monitor MCCH or the dynamic scheduling information of described MCH, obtain the LCID information of MBMS business of user request and the subframe position at MCH identification information place; Second monitoring unit 72 is used for the described subframe at the professional place of MBMS of monitoring users request, obtains described MBMS business according to the LCID information and the MCH identification information of the MBMS business of user's request.
The realization function that it will be appreciated by those skilled in the art that the each processing unit in the receiving system of multimedia broadcast multi-broadcasting business shown in Figure 7 can be understood with reference to the associated description among Fig. 5 and the embodiment one to embodiment four.The function of each unit can realize by the program that runs on the processor in the receiving system of multimedia broadcast multi-broadcasting business shown in Figure 7, also can realize by concrete logical circuit.
The above is preferred embodiment of the present invention only, is not to be used to limit protection scope of the present invention.
Claims (18)
1. the identification method of a 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 MBMS.
2. method according to claim 1 is characterized in that, 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 the professional place of MBMS.
3. method according to claim 3 is characterized in that, described method also comprises:
Described LCID information and the MBMS business that is identified thereof are carried among the Multicast Channel MCH together.
4. according to each described method in the claim 1 to 3, it is characterized in that described method also comprises:
With described MCH identification information as the professional common identification information of each MBMS among the described MCH.
5. method according to claim 4 is characterized in that, described LCID information and MCH identification information are carried among the Service Data Unit SDU with the MBMS business that it identified.
6. method according to claim 4 is characterized in that, described method also comprises:
In multicast control channel MCCH or dynamic scheduling information, carry the positional information of the multicast subframe at professional and corresponding LCID information of MBMS and MCH identification information place.
7. method according to claim 4 is characterized in that, comprises unicast service Logic Channel Identifier and MBMS service logical channels sign in the described LCID information, is respectively applied for sign multiplexing unicast service and MBMS business.
8. 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.
9. the method for reseptance of a multimedia broadcast multi-broadcasting business is characterized in that, comprising:
Receive the information of the corresponding relation of MBMS business and LCID information and MCH identification information; And
According to professional pairing LCID information of the MBMS of user's request and MCH identification information, monitor MCCH or the dynamic scheduling information of described MCH, obtain the LCID information of MBMS business of user request and the subframe position at MCH identification information place, monitor described subframe, obtain described MBMS business according to the LCID information and the MCH identification information of the MBMS business of user request.
10. the identity device of a 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.
11. device according to claim 10 is characterized in that, 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 the professional place of MBMS.
12. device according to claim 11 is characterized in that, described device also comprises:
First load bearing unit is used for described LCID information and the MBMS business that identified thereof are carried on Multicast Channel MCH together.
13. device according to claim 12 is characterized in that, described device also comprises:
Identify unit is used for described MCH identification information as the professional common identification information of each MBMS of described MCH.
14., it is characterized in that described first load bearing unit is carried on described LCID information and MCH identification information among the Service Data Unit SDU with the MBMS business that it identified according to claim 12 or 13 described devices.
15. device according to claim 14 is characterized in that, described device also comprises:
Second load bearing unit is used for the positional information of the multicast subframe at LCID information that MBMS is professional and corresponding and MCH identification information place, is carried in MCCH or the dynamic scheduling information.
16. device according to claim 14 is characterized in that, comprises unicast service Logic Channel Identifier and MBMS service logical channels sign in the described LCID information, is respectively applied for sign multiplexing unicast service and MBMS business.
17. device according to claim 10 is characterized in that, described MCH identification information comprises the Physical Multicast Channel PMCH identification information that carries described MCH.
18. the receiving system of a multimedia broadcast multi-broadcasting business is characterized in that, comprising:
Receiving element is used to receive the information of the professional corresponding relation with LCID information and MCH identification information of MBMS;
First monitoring unit, be used for according to professional pairing LCID information of the MBMS of user's request and MCH identification information, monitor MCCH or the dynamic scheduling information of described MCH, obtain the LCID information of MBMS business of user request and the subframe position at MCH identification information place; And
Second monitoring unit is used for the described subframe at the professional place of MBMS of monitoring users request, obtains described MBMS business according to the LCID information and the MCH identification information of the MBMS business of user's request.
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| CN113382388A (en) * | 2018-11-02 | 2021-09-10 | 华为技术有限公司 | Transmission method and communication device |
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| CN101931882B (en) | 2014-09-10 |
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