CN101262630A - Receiving/transmission method and device for multimedia broadcast and multicast service - Google Patents
Receiving/transmission method and device for multimedia broadcast and multicast service Download PDFInfo
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Abstract
The invention relates to the wireless communication field and discloses a MBMS transceiving method and a device thereof to integrate a terminal which does not support the MBMS characteristics into the MBMS. In the invention, a network side receives a message indicating the MBMS selected by the terminal from the terminal and identifying carrying methods used by the MBMS selected by the terminal, and if PTM is used by the MBMS, the terminal is reconfigured to be in CELL_FACH status and the data of the MBMS is distributed by FACH. A DCH carrier is established by the network side for the terminal and the data of the MBMS is distributed by DCH if PTP is the carrying method used by the MBMS selected by the terminal.
Description
Technical field
The present invention relates to wireless communication field, particularly the broadcast multi-broadcasting technology.
Background technology
Through nearly fast development decades, the crowd that mobile communication is benefited is more and more wider, but the business that it provided is still based on phone and message.Fast development along with internet (Internet), a large amount of mobile multi-media services emerge, the some of them mobile multi-media service requires a plurality of terminals can receive identical data simultaneously, for example video request program, television broadcasting, video conference, online education, interactive game etc., on cable network, can adopt internetworking agreement (Internet Protocol is called for short " IP ") multicast and broadcast technology to realize at present.But because particular network structure, functional entity and wave point etc. that mobile communications network had are all different with the wire communication IP network, and these mobile multi-media services are compared with general data service, have characteristics such as data volume is big, longer duration, delay sensitive, existing ip multicast and broadcast technology can not be directly applied for mobile network.
In order to effectively utilize the mobile network resource, realize the application of mobile multi-media service, third generation partner program (3rd Generation Partnership Project, abbreviation " 3GPP ") multimedia broadcast multi-broadcasting business (Multimedia Broadcast/Multicast Service is called for short " MBMS ") has been proposed.Its objective is provides the point-to-multipoint service of a data source to a plurality of user terminal to transmit data in mobile communications network, realize that Internet resources are shared, improves utilization rate of network resource, the interface resource of especially eating dishes without rice or wine.The MBMS business that 3GPP proposes can not only realize the classes of messages multicast and the broadcasting of plain text low rate, and can also realize the multicast and the broadcasting of high-speed multimedia business, and this has complied with the trend of mobile data development undoubtedly.
The MBMS network reference model as shown in Figure 1, wherein, BroadCast MultiCast Service center (BroadcastMulticast Service Center, be called for short " BM-SC ") be mobile network functional entity in order to support that MBMS is professional and newly-increased, it is the inlet of content supplier, be used for authorizing and initiating the MBMS bearer service, and plan transmits the MBMS content to schedule at mobile network.Interface between BM-SC and gateway GPRS supporting node (GGSN) (GPRS Gateway Support Node is called for short " GGSN ") is Gmb and Gi interface, and the Gmb interface provides the chain of command function, and the Gi interface provides the user plane bearer function.
The MBMS business has two kinds in the mode of network side and terminal room transmission information: point-to-multipoint (Pointto Multipoint is called for short " PTM ") mode and point-to-point (Point to Point is called for short " PTP ") mode.
Method of reseptance to the MBMS business that adopts these two kinds of bearing modes carries out simple declaration below.Terminal under IDLE (free time) state is intercepted MBMS point-to-multipoint control channel (MBMSpoint-to-multipoint Control Channel, abbreviation " MCCH ") the MBMS business information on, when definite this MBMS business is carried in the PTP mode, terminal is that reason is initiated Radio Resource control (Radio ResourceControl with " MBMS PTPREQUEST " (the professional PTP request of MBMS) initiatively, be called for short " RRC ") connect, MBMS PTP carrying is set up in request.When definite MBMS business was carried in the PTM mode, terminal remained on the IDLE state and directly receives the MBMS business.
Terminal receives in the process of MBMS business by the PTM mode, need monitor MCCH and MBMS informing indication channel (MBMS notification Indicator Channel is called for short " MICH ") simultaneously in time to know the situation of change of this MBMS service bearer mode.
The present inventor states in realization in the process of scheme and finds, to receive the MBMS business according to such scheme, terminal just must be supported MICH, can receive MCCH and MBMS point multipoint message traffic channel (MBMS Point-to-Multipoint Traffic Channel in this sub-district simultaneously, be called for short " MTCH "), and support the soft merging of many district common channels.These MBMS traffic performances have proposed higher requirement to the terminal hardware ability, yet, for terminal than older version, do not support above-mentioned MBMS traffic performance as the terminal great majority of R99 version, and MBMS must bring the expensive of MBMS terminal to the high request of terminal, in the following quite a long time, support the terminal of above-mentioned MBMS traffic performance can not popularize.And the terminal of having popularized of not supporting above-mentioned characteristic can't receive the MBMS business by existing scheme, can't really realize the MBMS business.
Summary of the invention
The technical problem underlying that embodiment of the present invention will solve provides a kind of multimedia broadcast multi-broadcasting business receiving/transmission method and device, makes not support the terminal of MBMS traffic performance can insert the MBMS business.
For solving the problems of the technologies described above, embodiments of the present invention provide a kind of multimedia broadcast multi-broadcasting business sending method, comprise following steps:
Network side receives the message of the selected multimedia broadcast multi-broadcasting business MBMS of this terminal of indication from terminal, if the professional bearing mode that uses PTM of the selected MBMS of this terminal, then this terminal is reconfigured to cell forward access channel CELL_FACH state, and issues the data of this MBMS business by forward access channel FACH.
Embodiments of the present invention also provide a kind of multimedia broadcast multi-broadcasting business method of reseptance, comprise following steps:
Terminal sends the message of the selected MBMS business of this terminal of indication to network side;
If terminal is received network side it is reconfigured to the indication of CELL_FACH state, then receive the data of selected MBMS business from FACH.
Embodiments of the present invention also provide a kind of multimedia broadcast multi-broadcasting business dispensing device, comprise:
Receiving element is used for receiving the message of indicating the selected MBMS business of this terminal from terminal;
First judging unit is used to judge the professional bearing mode that uses of the selected MBMS of this terminal;
Transmitting element is used for this terminal being reconfigured to the CELL_FACH state, and issuing the data of this MBMS business by FACH when first judging unit is judged the bearing mode of the professional PTM of use of the selected MBMS of terminal.
Embodiments of the present invention also provide a kind of user terminal, comprise:
Transmitting element is used for sending the message of indicating the selected MBMS business of this user terminal to network side;
Receiving element is used to receive network side this user terminal is reconfigured to the indication of CELL_FACH state, and after receiving this indication, receives the data of this MBMS business from FACH.
Embodiment of the present invention compared with prior art, the main distinction and effect thereof are:
Network side receives the message of the selected MBMS business of this terminal of indication from terminal, by the professional bearing mode that uses of the selected MBMS of network side difference terminal, if this MBMS is the professional PTM that uses, then this terminal is reconfigured to CELL_FACH (cell forward access channel) state, and issue the data of this MBMS business by forward access channel (Forward Access Channel, be called for short " FACH "); Can be directly be reconfigured to the CELL_FACH state in end side, receive the data of this MBMS business at this FACH according to the indication of network side.Even thereby terminal is not supported the MBMS traffic performance, can't read the information that MCCH obtains network side MBMS business, also can adopt corresponding mode to receive the MBMS business.For example do not support the terminal of MBMS traffic performance can receive the MBMS business of the bearing mode that uses PTM by FACH.
Description of drawings
Fig. 1 is a MBMS network reference model of the prior art;
Fig. 2 is according to the professional sending and receiving methods flow chart of the MBMS of first embodiment of the invention;
Fig. 3 sends and receives the flow chart of the MBMS business of corresponding bearing mode according to first embodiment of the invention at different channels;
Fig. 4 is the flow chart that leaves the MBMS business according to terminal in the professional sending and receiving methods of the MBMS of third embodiment of the invention;
Fig. 5 is the process chart that does not begin according to MBMS business in the professional sending and receiving methods of the MBMS of four embodiment of the invention;
Fig. 6 is according to the professional dispensing device structure chart of the MBMS of fifth embodiment of the invention;
Fig. 7 is the user terminal structure figure according to sixth embodiment of the invention.
Embodiment
For making the purpose, technical solutions and advantages of the present invention clearer, embodiments of the present invention are described in further detail below in conjunction with accompanying drawing.
First embodiment of the invention relates to a kind of method of sending and receiving of MBMS business, as shown in Figure 2.
In step 210, when terminal uses MBMS professional at needs, initiate RRC connection request (RRC CONNECTION REQUEST) to network side RNC, in this request, carry the cause value " Previous UE MBMS Reception " that this terminal of expression does not have the MBMS professional ability.
Wherein, this cause value (CAUSE) " Previous UE MBMS Reception " is that present embodiment is newly-increased on the basis of existing protocol.The cause value (Cause for an RRC connection establishment request) that request is set up in existing RRC connection in the existing protocol is as shown in table 1, present embodiment is newly-increased " Previous UE MBMS Reception " on the basis of the cause value shown in the table 1, shown in bolded section in the table 1.
| Information Element/Group name information element/group name | The Need necessity | The Multi reusable | Type and reference type and parameter | Semantics description semantic description |
| Establishment cause sets up reason | MP | Enumerated exemplifies (Originating ConversationalCall, Originating StreamingCall, Originating InteractiveCall, Originating BackgroundCall, Originating Subscribedtraffic Call, TerminatingConversational Call, Terminating StreamingCall, Terminating InteractiveCall, Terminating BackgroundCall, Emergency Call, Inter-RAT cellre-selection, Inter-RAT cell changeorder, Registration, Detach, Originating High PrioritySignalling, Originating Low PrioritySignalling, Call re-establishment, Terminating High PrioritySignalling, Terminating Low PrioritySignalling, Terminating-causeunknown, MBMSreception, MBMS ptp RB request, Previous UE MBMSReception (terminal does not have the ability of MBMS business)) | Eleven spare values are needed. needs 11 vacant values |
Table 1
In step 220, after RNC receives this RRC connection request, determine that according to the cause value in this request this terminal is not support the terminal of MBMS traffic performance, and the current access MBMS business that needs of this terminal.This RNC notice respective base station is set up respective channel.
In step 230, RNC sends RRC to this terminal and connects foundation (RRC CONNECTIONSETUP) message.
In step 240, terminal is returned RRC connection foundation to this RNC and is finished (RRCCONNECTION SETUP COMPLETE) message.
In step 250, this terminal sends professional correction of MBMS to RNC and asks (MBMSMODIFICATION REQUEST), comprises the selected MBMS business of this terminal in this request.
In step 260, RNC revises the request from the MBMS that receives is professional, obtains the MBMS business that this terminal is selected.Specifically, this MBMS is professional to revise request for having signaling, corresponding purposes is arranged in the prior art, in the present embodiment by in the RRC connection request that terminal sends, carrying the cause value that this terminal of expression does not have the MBMS professional ability, the professional correction of MBMS after the notice RNC asks to be used for the selected MBMS business of indicating terminal, thereby make RNC after the professional correction request of the MBMS that receives this terminal, can correctly handle, from the MBMS business of this terminal selection of this acquisition request.
In step 270, the professional bearing mode that uses of MBMS that RNC selects according to terminal is initiated corresponding radio bearer for this terminal and is set up process, and network side and terminal send and receive the data of this MBMS business by the radio bearer of correspondence.
Specifically as shown in Figure 3, in step 310, RNC judges the professional bearing mode that uses of the selected MBMS of this terminal, if the professional bearing mode that uses PTP of the selected MBMS of this terminal then enters step 320, for this terminal is set up dedicated channel (Dedicate Channel, be called for short " DCH ") carrying, the indication base station issues the data of this MBMS business by this DCH, also indicates this terminal to set up the DCH carrying in end side simultaneously, notifies this terminal to receive this MBMS business datum by this DCH; If the professional bearing mode that uses PTM of the selected MBMS of this terminal, then enter step 340, RNC is reconfigured to the CELL_FACH state with this terminal, issue the indication of state transformation to terminal, informing base station issues the data of this MBMS business by FACH, and notifies this terminal to receive the MBMS business datum at this FACH.
In end side, if receiving RNC, this terminal sets up the indication of DCH carrying, then show the bearing mode of the professional PTP of use of this MBMS, enter step 330, this terminal is set up corresponding DCH carrying according to this indication, and receives the data of MBMS business by this DCH.
If this terminal is received the indication that enters the CELL_FACH state, the bearing mode that then shows the professional PTM of use of this MBMS, enter step 350, this terminal is reconfigured to the CELL_FACH state according to the indication of RNC with this terminal, receives the data of this MBMS business from FACH.
In addition, when the bearing mode of the professional use of the selected MBMS of this terminal PTM, RNC also needs to redistribute UTRAN Radio Network Temporary Identifier (UTRAN Radio NetworkTemporary Identity for this terminal, be called for short " URNTI "), the URNTI that redistributes is to should MBMS professional Secondary Common Control Physical Channel (the Secondary Common Control PhysicalChannel that uses, be called for short " SCCPCH "), the regulation of existing protocol is: the result that the URNTI that redistributes obtains available SCCPCH sum delivery, the index sign that equals to carry the corresponding SCCPCH of this MBMS business.By redistributing URNTI, guarantee that terminal can correctly select SCCPCH, receive and the relevant signaling of this MBMS business from this SCCPCH.
Below in step 340 and 350, base station and terminal sent and received this MBMS business datum by FACH concrete mode describes: in the present embodiment, this FACH carries this MBMS business separately, the base station comprises MBMS identification field and destination channel type field (Target Channel Type Field is called for short " TCTF ") in the transmission block (TB) of the FACH of this MBMS business of carrying.This TCTF is used to indicate the channel type of this transmission block correspondence, and this MBMS identification field is used to indicate the MBMS business of this transmission block correspondence.Carry separately at this FACH under the situation of this MBMS business, terminal can belong to the professional corresponding transmission block of MBMS that this terminal is selected according to this TCTF selective reception when receiving this FACH.After receiving corresponding transmission block, this transmission block of terminal parses, remove TCTF and MBMS service identification that this transmission block comprises, the data of removing behind TCTF and the MBMS service identification are sent to Radio Link control (Radio Link Controller, abbreviation " RLC ") entity carries out Service Data Unit (Service Data Unit, be called for short " SDU ") reorganization, wherein, the RLC entity is that network side is the professional entity of setting up of this MBMS.
In the present embodiment, terminal need not be by monitoring the bearing mode that MCCH obtains network side MBMS business, receive MBMS when professional at needs, can directly send service request to RNC, by RNC according to the different mode of current business with terminal configuration to different channel reception MBMS business.Even this terminal is not supported the MBMS traffic performance on hardware, can't read MCCH, also can successfully receive the MBMS business.Because terminal do not need HardwareUpgring, only need support the professional cause value of revising request flow process and newly-increased RRC connection request of MBMS just can insert the MBMS business, cost is lower, is very favorable for the popularization of MBMS business.
In the present embodiment, the SCCPCH of carrying MBMS business also needs to support public control channel (Common Control Channel, abbreviation " CCCH "), Dedicated Control Channel (DedicatedControl Channel, be called for short " DCCH ") etc. logic channel, to support the cell update of CELL_FACH state terminal, flow processs such as paging.The channel information of this SCCPCH need be broadcasted by system information block SIB6 simultaneously, make the terminal of this MBMS business of reception to carry out cell update, paging receiving message etc., make present embodiment more complete, more feasible by this CCCH and DCCH.
In addition, when the bearing mode of the MBMS business of selecting when this terminal changes, RNC will be configured again for this terminal, this terminal is reconfigured to corresponding channel receive the MBMS business.The mode of reshuffling is similar to process shown in Figure 3.That is to say that if the selected MBMS business of terminal changes the bearing mode that uses PTM into, then network side is reconfigured to the CELL_FACH state with this terminal, and issues the data of this MBMS business by FACH; If the selected MBMS business of terminal changes the bearing mode that uses PTP into, then network side is set up the DCH carrying for this terminal, and issues the data of this MBMS business by this DCH.Terminal receives the data of MBMS business at the channel of correspondence according to the indication of network side.
Second embodiment of the invention relates to a kind of method of sending and receiving of MBMS business equally, and is roughly the same with first execution mode, and its difference is that in the first embodiment, a FACH only carries a MBMS business; And in the present embodiment, a plurality of MBMS business can multiplexing same FACH.A plurality of MBMS business are distinguished different MBMS business by the MBMS identification field in the transmission block of this FACH.Network side is the sub-district RNTI (CRNTI) of terminal distribution, and this CRNTI is corresponding with the sign of the selected MBMS business of terminal.Terminal is when receiving FACH, can determine whether this transmission block carries the MBMS business according to the TCTF in the FACH transmission block, whether the MBMS service identification by judging this transmission block is corresponding with CRNTI, determines the whether selected MBMS business of corresponding this terminal of this transmission block.Thereby the correct transmission block that receives the selected MBMS business of this terminal of carrying.Concrete method can be that network side is that the MBMS sign of Gao Siwei and the selected MBMS business of this terminal of CRNTI of this terminal distribution is identical, and terminal can know receive which transmission block according to its CRNTI.
Third embodiment of the invention relates to a kind of method of sending and receiving of MBMS business, and present embodiment has increased the associative operation that terminal is left the MBMS business on the basis of first execution mode.
As shown in Figure 4, when terminal is left the MBMS business at needs, send the professional request message of revising of MBMS to RNC equally, inform the MBMS business that this terminal of RNC is left.The corresponding radio bearer dispose procedure of initiation was connected dispose procedure with RRC after RNC received this message.
Four embodiment of the invention relates to a kind of method of sending and receiving of MBMS business, and present embodiment has increased terminal and initiate to have added MBMS when professional, the situation that this MBMS business does not begin on the basis of first execution mode.
As shown in Figure 5, RNC determines the MBMS business that this terminal is selected according to the professional correction of the MBMS request message of terminal, if the selected MBMS business of this terminal does not also begin, perhaps this MBMS business is unavailable for a certain reason, then initiate RRC and connect dispose procedure, thereby avoid terminal unnecessarily to take connection resource.
Can increase this MBMS business of expression and not begin or disabled cause value " MBMS Service not Available " in the RRC connection release message, as shown in table 2, RRC connects the reason that discharges with the notice terminal.Bolded section is the newly-increased cause value of present embodiment in the table 2.Terminal can suitably point out for the user according to cause value wherein after receiving the RRC connection release message, and make the user to carry out other operations, as reselect other MBMS business according to self needs, or the initiation request again etc. that is in due course.Make the realization hommization more of MBMS business.
| Information Element/Group name information element/group name | The Need necessity | The Multi reusable | Type and reference type and parameter | Semantics description semantic description |
| Release cause release cause | MP | Enumerated exemplifies ((normal event, unspecified, pre-emptive release, congestion, re-establishment reject, user inactivity), directedsignalling connectionre-establishment, MBMS Service notAvailable (the MBMS business does not begin or be unavailable)) | Eleven spare values areneeded. needs 1 vacant value |
Table 2
Fifth embodiment of the invention relates to the professional dispensing device of a kind of MBMS, as shown in Figure 6, comprises: receiving element is used for receiving the message of indicating the selected MBMS business of this terminal from terminal; First judging unit is used to judge the professional bearing mode that uses of the selected MBMS of this terminal; Transmitting element is used for this terminal being reconfigured to the CELL_FACH state, and issuing the data of this MBMS business by FACH when this first judging unit is judged the bearing mode of the professional PTM of use of the selected MBMS of this terminal.This transmitting element also is used for, and when this first judging unit is judged the bearing mode of the professional PTP of use of the selected MBMS of this terminal, for this terminal is set up the DCH carrying, and issues the data of this MBMS business by this DCH.By above each unit, even the terminal that needs to receive the MBMS business is not supported the MBMS traffic performance on hardware, can't monitor the bearing mode that MCCH obtains this MBMS business, also can on the channel of correspondence, receive the MBMS business.
This transmitting element issues the data of this MBMS business by the transmission block of FACH, comprises the sign of TCTF and MBMS business in this transmission block.Indicate the channel type and the pairing MBMS business of this transmission block by the sign of TCTF and MBMS business, make terminal determine the whether corresponding MBMS business of self selecting of this transmission block, can correctly receive corresponding transmission block.
The professional dispensing device of this MBMS also comprises allocation units, is used for when the bearing mode of the professional PTM of use of the selected MBMS of terminal, and for this terminal is redistributed URNTI, this URNTI that redistributes is corresponding to the SCCPCH of this MBMS business of carrying.Specifically, this URNTI is generally equal to the index sign of the SCCPCH of this MBMS business of carrying to the result that available SCCPCH sum delivery obtains.This SCCPCH supports CCCH and DCCH, and the professional dispensing device of this MBMS can also comprise: carry out the cell update of terminal and the unit of paging by this CCCH and DCCH.
In the present embodiment, the message of the selected MBMS business of this terminal of indication of this receiving element reception is that professional correction of MBMS asked.This receiving element also is used for receiving the RRC connection request from terminal, the professional dispensing device of this MBMS also comprises second judging unit, be used for judging whether the RRC connection request that this receiving element is received comprises the cause value " PreviousUE MBMS Reception " that this terminal of expression does not have the MBMS professional ability, if then indicate this receiving element to receive the professional correction request of MBMS of this terminal, and from this request, obtain the selected MBMS business of this terminal.Wherein, cause value " Previous UE MBMS Reception " is that present embodiment is newly-increased on the basis of existing protocol, shown in bolded section in the table 1.Because professional correction of this MBMS asks to be existing signaling, corresponding purposes is arranged in the prior art, in the present embodiment by in the RRC connection request that terminal sends, carrying the cause value that this terminal of expression does not have the MBMS professional ability, the professional correction request of the MBMS that sends after the notice RNC terminal is used to indicate the selected MBMS business of this terminal, thereby make RNC after the professional correction request of the MBMS that receives this terminal, can not obscure mutually with prior art, can correctly handle, from this request, obtain the MBMS business that this terminal is selected.
The professional dispensing device of this MBMS also comprises, and the change unit is used for when the bearing mode of MBMS business changes, the notice transmitting element.If the selected MBMS business of this terminal changes the bearing mode that uses PTM into, then change unit notice transmitting element this terminal is reconfigured to the CELL_FACH state, and issue the data of this MBMS business by FACH; If the selected MBMS business of this terminal changes the bearing mode that uses PTP into, then change unit notice transmitting element and set up the DCH carrying, and issue the data of this MBMS business by this DCH for this terminal.
In addition, this first judging unit also is used for after this receiving element is received the professional correction request of MBMS, judge whether MBMS business that this terminal is selected begins or unavailable,, then indicate transmitting element to send the RRC connection release message to this terminal if do not begin or unavailable.Thereby avoid terminal unnecessarily to take connection resource.Can comprise this MBMS business of expression and not begin or disabled cause value " MBMS Service not Available " in the RRC connection release message, RRC connects the reason that discharges with the notice terminal, makes that the implementation procedure of MBMS business is more humane.This cause value " MBMS Service notAvailable " is the cause value that present embodiment increases newly on the basis of existing protocol, shown in bolded section in the table 2.
Because present embodiment does not need the terminal hardware upgrading, only need terminal to support the professional cause value of asking flow process and newly-increased RRC request to connect of revising of MBMS just can make terminal correctly insert the MBMS business, cost is lower, is very favorable for the popularization of MBMS business.
Sixth embodiment of the invention relates to a kind of user terminal, as shown in Figure 7, comprises: transmitting element is used for sending the message of indicating the selected MBMS business of this user terminal to network side; Receiving element is used to receive network side this user terminal is reconfigured to the indication of CELL_FACH state, and after receiving this indication, receives the data of this MBMS business from FACH.This receiving element also is used to receive the indication that network side is set up the DCH carrying, sets up the DCH carrying according to this indication, and receives the data of this MBMS business by this DCH.
Specifically, this receiving element further comprises: transmission block receives subelement, is used for TCTF and MBMS service identification that the transmission block according to FACH comprises, receives the professional corresponding transmission block of the selected MBMS of this user terminal; Resolve subelement, be used to resolve transmission block and receive the transmission block that subelement is received; Identification field is removed subelement, is used to remove TCTF and the MBMS service identification that this transmission block comprises; The recon unit is used for sending to the RLC entity and carrying out the Service Data Unit reorganization removing data behind TCTF and the MBMS service identification; Wherein, the RLC entity is that network side is the professional entity of setting up of this MBMS.
In the present embodiment, terminal need not be by monitoring the bearing mode that MCCH obtains network side MBMS business, when needs receive the MBMS business, can be directly send service request to network side, by network side according to the different mode of current business with terminal configuration to different channel reception MBMS business.Even this terminal is not supported the MBMS traffic performance on hardware, can't read MCCH, also can successfully receive the MBMS business.
This user terminal also comprises: the channel selected cell, the URNTI that is used for redistributing according to network side selects SCCPCH.This SCCPCH supports CCCH and DCCH, and this user terminal also comprises: the unit that carries out cell update and paging receiving message by this CCCH and DCCH.
In the present embodiment, indicating the message of the selected MBMS business of this user terminal is that professional correction of MBMS asked; Transmitting element sent the RRC connection request to network side before sending the professional correction request of this MBMS, carry the cause value " Previous UE MBMS Reception " that this terminal of expression does not have the MBMS professional ability in this request.Specifically, because professional correction of this MBMS asks to be existing signaling, corresponding purposes is arranged in the prior art, in the present embodiment by in the RRC connection request that transmitting element sends, carrying corresponding cause value, the professional correction request of the MBMS that terminal sends after the notice RNC is used to indicate the selected MBMS business of this terminal, thereby make RNC after the professional correction request of the MBMS that receives this terminal, can correctly handle, from this request, obtain the MBMS business that this terminal is selected, and can not obscure mutually with prior art.
In addition, above-mentioned transmitting element can also be used for, and when user terminal need withdraw from the MBMS business, sends professional request, the MBMS business of indicating this user terminal to withdraw from revised of MBMS to network side.
Because the user terminal in the present embodiment does not need HardwareUpgring, only need support the professional cause value of revising request flow process and newly-increased RRC connection request of MBMS just can make user terminal correctly receive the MBMS business, cost is lower, is very favorable for the popularization of MBMS business.
In sum, in embodiments of the present invention, network side receives the message of the selected MBMS business of this terminal of indication from terminal, by the professional bearing mode that uses of the selected MBMS of network side difference terminal, if this MBMS is the professional PTM that uses, then this terminal is reconfigured to CELL_FACH (cell forward access channel) state, and issues the data of this MBMS business by forward access channel (Forward Access Channel is called for short " FACH "); Can be directly be reconfigured to the CELL_FACH state in end side, receive the data of this MBMS business at this FACH according to the indication of network side.Even thereby terminal is not supported the MBMS traffic performance, can't read the information that MCCH obtains network side MBMS business, also can adopt corresponding mode to receive the MBMS business.Do not support in terminal under the situation of MBMS broadcast channel, can realize the bearing mode of PTM by FACH equally.
If the professional bearing mode that uses PTP of the selected MBMS of this terminal, then network side is set up the DCH carrying for this terminal, and issues the data of this MBMS business by this DCH; Can directly set up the DCH carrying in end side, and receive the MBMS business datum according to the indication of network side.Thereby making does not support the terminal of MBMS traffic performance can adopt the PTP mode to receive the MBMS business.
When the bearing mode of the professional use of the selected MBMS of terminal PTM, network side is redistributed URNTI for this terminal, and the URNTI that redistributes is corresponding to the professional employed SCCPCH of MBMS, and this SCCPCH supports CCCH and DCCH.By redistributing URNTI, guarantee that terminal can correctly select SCCPCH, the CCCH and the DCCH that support by this SCCPCH carry out the reception of cell update and beep-page message.
Network side issues the data of this MBMS business by the transmission block of FACH, comprises the sign of TCTF and this MBMS business in this transmission block.Terminal can determine whether this transmission block belongs to the MBMS business according to this TCTF, determine the whether selected MBMS business of corresponding this terminal of this transmission block according to this MBMS service identification, thereby correctly receive the professional corresponding transmission block of selected MBMS and therefrom obtain the MBMS business datum.
The message of indicating the selected MBMS business of this terminal can be that professional correction of existing MBMS asked, terminal is by carrying the cause value that this terminal of expression does not have the MBMS professional ability in the RRC connection request, come this terminal of informing network side for not supporting the terminal of MBMS traffic performance, what the professional correction request of this MBMS was indicated is the MBMS business of selecting.Network side is distinguished the professional purposes of revising request of this MBMS according to the cause value of RRC connection request, obtains the selected MBMS business of this terminal from this message, makes network side can get access to the selected business of the terminal of not supporting the MBMS traffic performance.
If set up the RRC connection for this terminal after, determine that the selected MBMS business of this terminal does not begin as yet, then send the RRC connection release message, thereby avoid terminal unnecessarily to take connection resource to this terminal.
If the selected MBMS of terminal is professional and the professional shared FACH of other MBMS, then network side is this terminal distribution CRNTI, and this sign is corresponding with the MBMS business that this terminal is selected.Make terminal can correctly receive the MBMS business of its expectation according to CRNTI.
Though pass through with reference to some of the preferred embodiment of the invention, the present invention is illustrated and describes, but those of ordinary skill in the art should be understood that and can do various changes to it in the form and details, and without departing from the spirit and scope of the present invention.
Claims (30)
1. a multimedia broadcast multi-broadcasting business sending method is characterized in that, comprises following steps:
Network side receives the message of the selected multimedia broadcast multi-broadcasting business MBMS of this terminal of indication from terminal, if the professional bearing mode that uses point-to-multipoint of the selected MBMS of this terminal, then this terminal is reconfigured to cell forward access channel CELL_FACH state, and issues the data of this MBMS business by forward access channel FACH.
2. multimedia broadcast multi-broadcasting business sending method according to claim 1 is characterized in that, also comprises following steps:
If the point-to-point bearing mode of the professional use of the selected MBMS of described terminal, then described network side is set up dedicated channel DCH carrying for this terminal, and issues the data of this MBMS business by this DCH.
3. multimedia broadcast multi-broadcasting business sending method according to claim 1 is characterized in that, if the professional bearing mode that uses point-to-multipoint of the selected MBMS of described terminal then also comprises following steps:
Described network side is redistributed universal mobile telecommunications system grounding wireless access network UTRAN Radio Network Temporary Identifier URNTI for this terminal, and this URNTI that redistributes is corresponding to the Secondary Common Control Physical Channel SCCPCH of the described MBMS business of carrying.
4. multimedia broadcast multi-broadcasting business sending method according to claim 1, it is characterized in that, described network side issues the data of described MBMS business by the transmission block of described FACH, comprises the sign of destination channel type field TCTF and described MBMS business in this transmission block.
5. multimedia broadcast multi-broadcasting business sending method according to claim 1 is characterized in that, the message of indicating the selected MBMS business of described terminal is that professional correction of MBMS asked.
6. multimedia broadcast multi-broadcasting business sending method according to claim 5 is characterized in that, described network side receives before the professional correction request of described MBMS from described terminal, also comprises following steps:
Described network side receives radio resource control layer RRC connection request from described terminal, if comprise the cause value that this terminal of expression does not have the MBMS professional ability in this request, enters the described step that receives the professional correction request of described MBMS from terminal.
7. multimedia broadcast multi-broadcasting business sending method according to claim 6 is characterized in that, described network side also comprises following steps after receiving described RRC connection request:
Setting up RRC for described terminal connects;
Described network side also comprises following steps after receiving the professional correction request of described MBMS:
Described network side is according to the professional definite selected MBMS business of described terminal of request of revising of described MBMS;
If this MBMS business does not begin or be unavailable, then send the RRC connection release message to described terminal.
8. multimedia broadcast multi-broadcasting business sending method according to claim 7 is characterized in that, described network side carries the described MBMS business of expression in described RRC connection release message does not begin or disabled cause value.
9. multimedia broadcast multi-broadcasting business sending method according to claim 4, it is characterized in that, use a FACH to issue data if the selected MBMS of described terminal is professional with other MBMS are professional, then the MBMS service identification that comprises of the transmission block by described FACH is distinguished described MBMS business;
Described network side is described terminal distribution Cell Radio Network Temporary Identifier/Identity, Cell-RNTI CRNTI, and this sign is corresponding with the MBMS business that this terminal is selected.
10. multimedia broadcast multi-broadcasting business sending method according to claim 2 is characterized in that, if the professional bearing mode that uses of the selected MBMS of described terminal changes, then also comprises following steps:
If the selected MBMS business of described terminal changes the bearing mode that uses point-to-multipoint into, then described network side is reconfigured to the CELL_FACH state with this terminal, and issues the data of this MBMS business by FACH;
Use point-to-point bearing mode if the selected MBMS business of described terminal changes into, then described network side is set up the DCH carrying for this terminal, and issues the data of this MBMS business by this DCH.
11. according to each described multimedia broadcast multi-broadcasting business sending method in the claim 1 to 10, it is characterized in that, the SCCPCH that carries described MBMS business supports public control channel CCCH and Dedicated Control Channel DCCH, and described network side carries out the cell update and the paging of described terminal by described CCCH and DCCH.
12. multimedia broadcast multi-broadcasting business sending method according to claim 11 is characterized in that, described network side is broadcasted the channel information of described SCCPCH by system information block SIB6.
13. a multimedia broadcast multi-broadcasting business method of reseptance is characterized in that, comprises following steps:
Terminal sends the message of the selected MBMS business of this terminal of indication to network side;
If described terminal is received network side it is reconfigured to the indication of CELL_FACH state, then receive the data of selected MBMS business from FACH.
14. multimedia broadcast multi-broadcasting business method of reseptance according to claim 13, it is characterized in that, if described terminal is received network side and set up the indication of DCH carrying, then set up the DCH carrying, and receive the data of described MBMS business by this DCH according to this indication.
15. multimedia broadcast multi-broadcasting business method of reseptance according to claim 13 is characterized in that, also comprises following steps:
The URNTI that described terminal is redistributed for this terminal according to described network side selects the SCCPCH of the described MBMS business of carrying;
The SCCPCH that carries described MBMS business supports CCCH and DCCH, and described terminal is carried out cell update and paging receiving message by described CCCH and DCCH.
16. multimedia broadcast multi-broadcasting business method of reseptance according to claim 13 is characterized in that, described terminal comprises following substep from the step that described FACH receives the data of described MBMS business:
TCTF that comprises in the transmission block of described terminal according to described FACH and MBMS service identification receive the transmission block that belongs to described MBMS business;
Described terminal parses belongs to the transmission block of described MBMS business, removes TCTF and MBMS service identification that this transmission block comprises;
Described terminal will be removed data behind TCTF and the MBMS service identification and be sent to the Radio Link control RLC entity of setting up for this MBMS is professional and carry out the Service Data Unit reorganization.
17. multimedia broadcast multi-broadcasting business method of reseptance according to claim 13 is characterized in that, the message of indicating the selected MBMS business of described terminal is that professional correction of MBMS asked;
Described terminal also comprised following steps before described network side sends the professional correction request of described MBMS:
Described terminal sends the RRC connection request to network side, carries the cause value that this terminal of expression does not have the MBMS professional ability in this request.
18. according to each described multimedia broadcast multi-broadcasting business method of reseptance in the claim 13 to 17, it is characterized in that, described terminal sends professional request, the MBMS business of indicating this terminal to withdraw from revised of described MBMS withdrawing from described MBMS when professional to described network side.
19. according to each described multimedia broadcast multi-broadcasting business method of reseptance in the claim 13 to 17, it is characterized in that, if the selected MBMS of described terminal is professional and the professional shared FACH of other MBMS, then described terminal receives the data of selected MBMS business in the following manner from described FACH:
Described terminal receives the data of the MBMS business of this CRNTI correspondence according to the CRNTI that described network side distributes from described FACH.
20. a multimedia broadcast multi-broadcasting business dispensing device is characterized in that, comprises:
Receiving element is used for receiving the message of indicating the selected MBMS business of this terminal from terminal;
First judging unit is used to judge the professional bearing mode that uses of the selected MBMS of this terminal;
Transmitting element is used for this terminal being reconfigured to the CELL_FACH state, and issuing the data of this MBMS business by FACH when described first judging unit is judged the bearing mode of the professional use of the selected MBMS of described terminal point-to-multipoint.
21. multimedia broadcast multi-broadcasting business dispensing device according to claim 20 is characterized in that, described transmitting element also is used for:
When described first judging unit is judged the point-to-point bearing mode of the professional use of the selected MBMS of described terminal,, and issue the data of this MBMS business by this DCH for this terminal is set up the DCH carrying.
22. multimedia broadcast multi-broadcasting business dispensing device according to claim 20 is characterized in that, also comprises:
Allocation units are used for when described first judging unit is judged the bearing mode of the professional use of the selected MBMS of described terminal point-to-multipoint, and for this terminal is redistributed URNTI, this URNTI that redistributes is corresponding to the SCCPCH of the described MBMS business of carrying;
Described SCCPCH supports CCCH and DCCH;
The professional dispensing device of described MBMS also comprises: carry out the cell update of described terminal and the unit of paging by described CCCH and DCCH.
23. multimedia broadcast multi-broadcasting business dispensing device according to claim 20 is characterized in that, described transmitting element sends the data of described MBMS business in the following manner at described FACH:
By the transmission block of described FACH, issue the data of described MBMS business, in this transmission block, comprise the sign of TCTF and described MBMS business.
24. multimedia broadcast multi-broadcasting business dispensing device according to claim 20 is characterized in that, the message of the selected MBMS business of the described terminal of indication that described receiving element receives is that professional correction of MBMS asked;
Described receiving element also is used for receiving the RRC connection request from described terminal;
The professional dispensing device of described MBMS also comprises second judging unit, be used for judging whether the RRC connection request that described receiving element is received comprises the cause value that the described terminal of expression does not have the MBMS professional ability, if judge to comprise, then indicate this receiving element to receive professional correction of described MBMS and ask from described terminal.
25. according to each described multimedia broadcast multi-broadcasting business dispensing device in the claim 20 to 24, it is characterized in that, also comprise: the change unit is used for notifying described transmitting element when the bearing mode of described MBMS business changes;
If the selected MBMS business of described terminal changes the bearing mode that uses point-to-multipoint into, then described change unit notifies described transmitting element that this terminal is reconfigured to the CELL_FACH state, and issues the data of this MBMS business by FACH;
Use point-to-point bearing mode, then described change unit to notify described transmitting element to set up the DCH carrying if the selected MBMS business of described terminal changes into, and issue the data of this MBMS business by this DCH for this terminal.
26. a user terminal is characterized in that, comprises:
Transmitting element is used for sending the message of indicating the selected MBMS business of this user terminal to network side;
Receiving element is used to receive described network side this user terminal is reconfigured to the indication of CELL_FACH state, and after receiving this indication, receives the data of this MBMS business from FACH.
27. user terminal according to claim 26 is characterized in that, described receiving element also is used to receive the indication that network side is set up the DCH carrying, sets up the DCH carrying according to this indication, and receives the data of described MBMS business by this DCH.
28. user terminal according to claim 26 is characterized in that, described user terminal also comprises:
The channel selected cell, the URNTI that is used for redistributing according to described network side selects the SCCPCH of the described MBMS business of carrying;
The SCCPCH that carries described MBMS business supports CCCH and DCCH, and described user terminal also comprises: the unit that carries out cell update and paging receiving message by described CCCH and DCCH.
29. user terminal according to claim 26 is characterized in that, described receiving element also comprises:
Transmission block receives subelement, is used for TCTF and MBMS service identification that the transmission block according to described FACH comprises, receives the transmission block that belongs to described MBMS business;
Resolve subelement, be used to resolve the described transmission block that receives;
Identification field is removed subelement, is used to remove TCTF and the MBMS service identification that described transmission block comprises;
The recon unit is used for sending to the professional RLC entity of setting up of this MBMS and carrying out the Service Data Unit reorganization removing data behind TCTF and the MBMS service identification.
30., it is characterized in that the message of the selected MBMS business of the described user terminal of indication that described transmitting element sends is that professional correction of MBMS asked according to each described user terminal in the claim 26 to 29;
Described transmitting element also is used for: before sending the professional correction request of described MBMS, send the RRC connection request to described network side, carry the cause value that this terminal of expression does not have the MBMS professional ability in this request.
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| CN2007100851051A CN101262630B (en) | 2007-03-09 | 2007-03-09 | Receiving/transmission method and device for multimedia broadcast and multicast service |
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| CN2007100851051A CN101262630B (en) | 2007-03-09 | 2007-03-09 | Receiving/transmission method and device for multimedia broadcast and multicast service |
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