CN101296407B - MBMS transmission method and device for multi-carrier wave mobile communication system - Google Patents
MBMS transmission method and device for multi-carrier wave mobile communication system Download PDFInfo
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- CN101296407B CN101296407B CN2007100986186A CN200710098618A CN101296407B CN 101296407 B CN101296407 B CN 101296407B CN 2007100986186 A CN2007100986186 A CN 2007100986186A CN 200710098618 A CN200710098618 A CN 200710098618A CN 101296407 B CN101296407 B CN 101296407B
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Abstract
The present invention relates to a method for transmitting MBMS in a multi-carrier wave system and a device. A transmitting side MAC-m maps MTCH loaded with the same MBMS to an FACH channel and establishes a Iub transmitting bearer; by modifying two ends of the Iub transmitting bearer, a first mapping module at an entrance end of Iub is an MBMS data packet to be transmitted and splitting identification is set in the extension field of FACH FP frame structure according to preset rules, mapping relationship exists between the splitting identification and SCCPCH; a second mapping module at the exit end of the Iub maps the received MBMS data packet on a plurality of SCCPCHs which are configured on a plurality of carrier wave resources according to the splitting identification to realize that after the multi-carrier wave system and an MBMS service data packet are split, the multi-carrier wave system is parallelly transmitted on a plurality of the carrier wave resources. The physical layer of UE receiving side receives the MBMS data packet on a plurality of SCCPCH carrier wave resources, and sends the MBMS data packet to a higher layer by an FACH to form the same MBMS service data. The splitting identification can be SCCPCH-ID or a numerical symbol TSN or a preset sequence. The multi-carrier wave resources are fully utilized to improve the MBMS transmission speed, thus reducing the receiving time of terminals and saving power.
Description
Technical field
The present invention relates to the mobile communication system data transmission technology, relate to the method and apparatus of multicarrier system transmitting multimedia broadcast multicast services (MBMS, Multimedia Broadcast Multicast Service) data or rather.
Background technology
In 3GPP Release6, introduced multimedia broadcast multicast services (MBMS).MBMS is meant a kind of point-to-multipoint service, sends data by a data source to a plurality of users, is used to realize sharing of sharing of core net and access network resource, particularly air interface resource.MBMS by the 3GPP definition can not only realize the classes of messages multicast and the broadcasting of plain text low rate, and can realize the multimedia service multicast and the broadcasting of two-forty.
Agreement is that system realizes that the MBMS function has increased new channel, comprise: MBMS informing indication channel (MICH, MBMS notification Indicator Channel), the MBMS point is to multiple spot control channel (MCCH, MBMS point-to-multipointControl Channel), MBMS point-to-multipoint service channel (MTCH, MBMS point-to-multipoint Traffic Channel) and the MBMS point to multiple spot scheduling channel (MSCH, MBMS point-to-multipoint Scheduling Channel).Wherein MBMS informing indication channel MICH is the physical channel of a similar Paging Control Channel (PICH, Page Indicator Channel), and MCCH, MTCH, MSCH are three logic channels.
The MBMS point is to multiple spot control channel MCCH, under Radio Resource control (RRC, Radio ResourceControl) connection mode or idle pulley, is used between network and user terminal UE descending transmission and puts multiple spot (p-t-m) chain of command information.Usually, MCCH is mapped in auxiliary publish control physical channel (SCCPCH, Secondary Common Control Physical Channel) a specific forward access channel (FACH, Forward Access Channel) and be shown in Broadcast Control Channel (BCCH, Broadcast Control Channel).
MBMS point-to-multipoint service channel MTCH, under RRC connection or idle pulley, the point that is used for downlink transmission user face between network and a plurality of user terminal UEs is to multiple spot (p-t-m) MBMS business information.MTCH always is mapped in the specific FACH of SCCPCH and indicates on MCCH.
The MBMS point is to multiple spot scheduling channel MSCH, RRC connect or idle pulley under, be used for the professional transmitting scheduling information of MBMS that between network and a plurality of user terminal UEs downlink transfer is put multiple spot (p-t-m).MSCH always is mapped in the specific FACH of SCCPCH and is indicated in MCCH.
Mapping relations between the side of UE shown in Fig. 1 forward access channel FACH (Traffic Channel) and logic channel MSCH, MCCH, MTCH.The a plurality of Service Access points of MAC SAPs presentation medium access control among the figure (MAC, Medium Access Control) (SAPs, Service Access Point).
The universal mobile telecommunications system of network side shown in Fig. 2 (UMTS, Universal MobileTelecommunication System) land radio access web (UTRAN, mapping relations between UMTS Terrestrial RadioAccess Network) logic channel MSCH, MCCH, MTCH and Traffic Channel FACH, each logic channel access point MSCH-SAP, MCCH-SAP, MTCH-SAP can shared CTCH Common Traffic Channel FACH, the MBMS transmission data message is accomplished to the mapping of physical channel SCCPCH again.The a plurality of Service Access points of MAC SAPs presentation medium access control among the figure.
Be to support the transfer of data of MBMS user plane and control plane, in media access control MAC-c/sh, increased the scheduling that a multicast functionality module MAC-m (new module is called MAC-c/sh/m) is used to handle MBMS related service channel.In addition, MBMS will consider following three kinds of logic channel: MCCH when adopting point to multiple spot (p-t-m) mode transfer, MSCH and MTCH, and these logic channels all are mapped to FACH.Use Dedicated Traffic Channel (DTCH, Dedicated Traffic Channel) and Dedicated Control Channel (DCCH, Dedicated Control Channel) when adopting the p-t-p transmission.
Fig. 3 provides the UTRAN MAC layer structure of supporting MBMS, comprises MAC-c entity, MAC-sh entity and MAC-m entity, and completion logic channel MTCH is to the mapping of CTCH Common Traffic Channel FACH.The structure of UTRAN side newly-increased MAC-m in MAC-c/sh becomes the MAC-c/sh/m structure, and MAC-m sends the MBMS data by CTCH Common Traffic Channel FACH.A corresponding M AC-c/sh/m entity is all arranged among each sub-district UTRAN.
The UE side equally also will increase the structure (the MAC-c/sh/m structure of UE side) of MAC-m newly in MAC-c/sh, this MAC-m receives the MBMS data by Traffic Channel FACH, and is mapped on three logic channel: MCCH, MSCH, the MACH.There is a MAC-m entity among each UE, perhaps when selectivity merges, in the sub-district UE that each selectivity merges, a MAC-m entity is set.
All require on a carrier wave, to transmit the MBMS transmission course of the single-carrier system of protocol description such as Fig. 4, shown in Figure 5 when 3GPP system transmissions MBMS is professional at present.
Increase MAC-m newly in the UTRAN side shown in Fig. 4, MAC-c/sh/m is positioned in the control radio network controller (control RNC, CRNC, Controlling Radio Network Controller), MAC-m sends the MBMS data by CTCH Common Traffic Channel FACH, and its single carrier transmission process comprises:
Step 42, TCTF MUX: handle the insertion in TCTF territory in the mac header and indicate employed logic channel, as the mapping between logic channel MTCH, MCCH, MSCH and the Traffic Channel FACH, TCTF indicates in the territory type of employed logic channel;
Step 44, transformat combination (TFC, Transport Format Combination) is selected: finish the selection of transformat for CTCH Common Traffic Channel FACH.
The characteristics of UTRAN side single carrier transmission process are: the professional correspondence of MBMS is sending on the FACH He on a SCCPCH.A common cover multimedia broadcast multi-broadcasting business program carries, is mapped to a FACH by a MTCH and sent by a physical channel SCCPCH, and this business is transmitted on a carrier resource.
Increase MAC-m newly to MAC-c/sh in the UE side shown in Fig. 5, formation MAC-c/sh/m is present among each UE or among the sub-district UE of each selectivity merging, MAC-m receives the MBMS data by CTCH Common Traffic Channel FACH, and its single carrier transmission process comprises:
Step 51: the destination channel type field is separated multiplexed (TCTF DEMUX, Target ChannelType Format Demultiplex): the mac header of the MBMS business datum message that physical channel SCCPCH is received carries out the detection and the deletion in TCTF territory, and finish mapping between Traffic Channel and the logic channel, as the mapping between FACH and MTCH, MCCH, MSCH, TCTF indicates in the territory type of employed logic channel;
Step 52: read MBMS-ID:, thereby can on MTCH, obtain certain specific MBMS business datum according to the MBMS-ID sign.
The characteristics of UE side single carrier transmission process are: the professional correspondence of a kind of MBMS is receiving on the SCCPCH He on a FACH.A common cover multimedia broadcast multi-broadcasting business program is received by a SCCPCH, is transferred on the FACH, is mapped on the MTCH.
In sum, existing 3GPP system does not introduce multi-carrier mode, and agreement has only been described the MBMS transmission course of single-carrier system, and same MBMS business can only be transmitted on a carrier wave, influence the transmission rate and the time of reception that has increased terminal UE of MBMS business, promptly increased the power consumption of terminal.And for multi-carrier mobile communication system, as multi-carrier TD-SCDMA system, the characteristics that should make full use of multi-carrier resource are fully come transferring MBMS service data, but the MBMS transmission plan of existing single-carrier system can not be used for multicarrier system.
Summary of the invention
In view of this, main purpose of the present invention is to provide the method and apparatus of a kind of multi-carrier mobile communication system transmitting multimedia broadcast multicast services MBMS, same MBMS business datum can be diverted on a plurality of carrier resources and transmit, be used to improve the transmission rate of MBMS business, and reduce the time of reception of terminal, play the effect of power saving.
For achieving the above object, technical scheme of the present invention is achieved in that the method for a kind of multi-carrier mobile communication system transmitting multimedia broadcast multicast services MBMS, comprising:
The auxiliary publish control physical channel SCCPCH of each transferring MBMS service data is configured on the carrier resource, and a plurality of such SCCPCH are configured on a plurality of carrier resources;
The MBMS business datum is diverted on the more than one SCCPCH when wrapping in through the Iub transmission bearer, and the MBMS business data packet after the shunting walks abreast and transmits on the carrier resource of an above SCCPCH.
For achieving the above object, technical scheme of the present invention is achieved in that a kind of method of multi-carrier mobile communication system MBMS transmission again, comprising:
The auxiliary publish control physical channel SCCPCH of each transferring MBMS service data is configured on the carrier resource, and a plurality of such SCCPCH are configured on a plurality of carrier resources;
Transmitter side is mapped to a MBMS point-to-multipoint service channel MTCH on the forward access channel FACH, and set up an Iub transmission bearer, by these Iub transmission bearer two ends the MBMS business data packet on the FACH is diverted on the more than one SCCPCH, the MBMS business data packet after the shunting walks abreast and transmits on the carrier resource of an above SCCPCH;
Receiver side receives the MBMS business data packet on the carrier resource of an above SCCPCH, be delivered to high level by a FACH, consists of a MBMS business datum.
For achieving the above object, technical scheme of the present invention is achieved in that the device of a kind of multi-carrier mobile communication system transmitting multimedia broadcast multicast services MBMS again, comprising:
Comprise first mapping block and second mapping block that lay respectively at Iub transmission bearer two ends;
First mapping block of going into Iub end transmission bearer is provided with the branch flow label to the MBMS business data packet on FACH of transmitter side, this minute flow label and auxiliary publish control physical channel SCCPCH to be shunted have mapping relations;
Go out second mapping block of Iub end transmission bearer, according to the branch flow label of MBMS business data packet and the mapping relations between auxiliary publish control physical channel SCCPCH, the MBMS business data packet is diverted to corresponding SCCPCH goes up transmission, different SCCPCH is configured on a plurality of carrier resources.
Flow step comprised in described minute:
1), a MBMS point-to-multipoint service channel MTCH who carries the MBMS business datum is mapped to a forward access channel FACH, and sets up an Iub transmission bearer;
2), go into Iub end the MBMS business data packet on the FACH be provided with the branch flow label, this minute flow label and SCCPCH to be shunted have mapping relations;
3), go out Iub end according to the branch flow label of MBMS business data packet and the mapping relations between SCCPCH, MBMS business data packet correspondence is diverted on the carrier resource of an above SCCPCH and transmits.
Described step 2) in, flow label was arranged on the extended field of FACH Frame Protocol FP structure in described minute, transmission block TB that comprises among each FACH FP and the SCCPCH transmittability of mapping coupling.
Flow label can be SCCPCH identifier SCCPCH-ID in described minute, had described mapping relations between SCCPCH-ID and the SCCPCH; Also can be the transmission sequence number TSN of digital form, have described mapping relations between TSN and the SCCPCH; Can also virtually be a kind of order of making an appointment to have the mapping relations of making an appointment between order that this is made an appointment and the SCCPCH.
Shunting in the described step 3) further comprises:
31), set up NodeB FACH and receive that formation is used to receive the MBMS business data packet and corresponding SCCPCH sets up each SCCPCH formation to be sent;
32), take out the MBMS business data packet successively from NodeB FACH receives formation, the mapping relations by between described minute flow label and SCCPCH are diverted to each SCCPCH formation to be sent with packet;
33), the packet in each SCCPCH formation to be sent transmits on the SCCPCH of corresponding carrier resource.
When minute flow label adopts SCCPCH-ID or TSN, this minute flow label and and SCCPCH between mapping relations also by radio network controller (RNC) by radio bearer RB information signaling terminal UE.
The present invention provided a kind of in multicarrier system the method and apparatus of MBMS transmission, the MTCH that transmitter side MAC-m will carry same MBMS business datum is mapped to a FACH channel, and sets up an Iub transmission bearer; In physical layer made amendment in Iub transmission bearer two ends, the MAC-m side is gone into first mapping block of Iub end, presses pre-defined rule for FACH FP Frame waiting for transmission and does to divide flow label, and this shunting mark is represented the SCCPCH that corresponding FACH FP Frame is shunted; Second mapping block that the NodeB side goes out the Iub end divides flow label to be mapped to a plurality of SCCPCH channels by FACH FP Frame the MBMS business datum that receives, a plurality of SCCPCH channel configurations are to a plurality of carrier resources, can be that each SCCPCH channel all is mapped to different carrier waves, also can be a plurality of SCCPCH channel configurations at a carrier wave, the embodiment of the invention does not limit this.Thereby realized transmitting on a plurality of carrier resources walking abreast after the same MBMS business datum shunting in the multicarrier system.
The physical layer of receiver side UE receives the MBMS business datum from a plurality of SCCPCH carrier resources, is delivered to MAC layer MAC-m by a FACH, recovers the MBMS business datum by RLC according to predetermined rule again.
The embodiment of method and apparatus of the present invention is for multicarrier system, as the TD-SCDMA system, transmit on a plurality of carrier resources walking abreast after the same MBMS business datum shunting, can improve the transmission rate of MBMS business, and the time of reception of minimizing terminal plays the effect of power saving.
Description of drawings
Fig. 1 is the mapping relations schematic diagram of UE side logic channel and transmission channel;
Fig. 2 is the mapping relations schematic diagram of UTRAN side logic channel and transmission channel;
Fig. 3 is a UTRAN MAC layer structural representation;
Fig. 4 is a UTRAN side MAC-c/sh/m single carrier transmission process schematic diagram;
Fig. 5 is a UE side MAC-c/sh/m single carrier transmission process schematic diagram;
Fig. 6 divides flow diagram for physical layer of the present invention;
Fig. 7 is the mapping relations schematic diagram that physical layer shunting NodeB FACH receives formation and a plurality of SCCPCH formation to be sent among Fig. 6;
The FACH FP data frame structure schematic diagram that Fig. 8 provides for existing protocol;
Fig. 9 is through the amended FACH FP of the present invention program data frame structure schematic diagram one;
Figure 10 is through the amended FACH FP of the present invention program data frame structure schematic diagram two.
Embodiment
In order to realize a MTCH finally need being mapped to a plurality of SCCPCH through after the physical layer process with walking abreast in the transmitted over resources of a plurality of carrier waves after the MBMS business datum shunting, these SCCPCH are configured on a plurality of carrier resources.
Main thought of the present invention is: a MTCH of carrying MBMS business datum is mapped to a FACH, and set up an Iub transmission bearer, in MAC-m one side of going into Iub end transmission bearer, make to divide flow label by first mapping block to the packet that is about on the FACH be diverted on the corresponding SCCPCH, by SCCPCH channel logo SCCPCH-ID or numeral number TSN are set in FACH FP Frame, perhaps virtual order for being scheduled to, NodeB one side that is going out the Iub transmission bearer, by second mapping block according to channel logo SCCPCH-ID or numeral number or according to virtual predefined procedure mapping, be diverted to SCCPCH, guarantee NodeB receive have SCCPCH channel logo SCCPCH-ID or numeral number TSN or Frame according to predefined procedure after, know that the data in this Frame will transmit on the SCCPCH of which carrier wave, thereby realized a MBMS business datum is diverted to the purpose of parallel transmission on a plurality of carrier waves.When shunting is labeled as SCCPCH-ID or TSN, need the extended field in the FACH FP frame structure is carried out the increase of actual property by the solution of the present invention.
Because the present invention is to the not influence of other logic channels, for clear the present invention described simply, embodiment only provides the mapping process of a MTCH.
Referring to Fig. 6, provide the media access control MAC model among the figure.MAC-m after the enhancing is mapped to a FACH with a MTCH, and sets up an Iub transmission bearer.The embodiment of the invention is in full accord in the processing method of MAC layer and single carrier.MAC-m after the enhancing comprises following function:
The function that increases MBMS-ID is finished in MBMS-ID unit 61.For the logic channel of p-t-m type, the MBMS-ID territory in the mac header is used for distinguishing the MBMS business.This function is identical with the function of step 41 among Fig. 4.
The insertion in TCTF territory is finished in TCTF MUX unit 62.(as MCCH, MSCH and MTCH) handled in the mapping of inserting in MAC message mac header between TCTF territory and logic channel and the Traffic Channel.TCTF indicates in the territory type of employed logic channel.This function is identical with the function of step 42 among Fig. 4.
Scheduling/buffering/priority unit 63, according to high level set MBMS data flow and the priority of non-MBMS data flow and the management that the time delay demand realizes the common transmission resource between these data flow, this function is identical with the function of step 43 among Fig. 4.
TFC selected cell 64 is finished the selection of transformat for each CTCH Common Traffic Channel FACH.After MTCH data are handled through increased functionality MAC-m, will be passed to NodeB through the Iub oral instructions with the form of FACH Frame (FACH DATAFRAME).
65 is first mapping block into Iub transmission bearer MAC-m one side, and the major function of finishing is that the packet that is about on the FACH be diverted on the corresponding SCCPCH is done to divide flow label, and this shunting mark is represented the mapping relations between this packet and SCCPCH.
66 is second mapping block that Iub transmission bearer NodeB one side, the FACH Frame is mapped to the shunting of each SCCPCH according to minute flow label, guarantee that NodeB is after receiving the Frame that has the branch flow label, know that the data in this Frame will transmit on the SCCPCH of which carrier wave, thereby realized a MBMS business datum is diverted to the purpose of parallel transmission on a plurality of carrier waves.
Dividing flow label can be SCCPCH channel logo SCCPCH-ID or numeral number-transmission sequence number TSN (Transmission Sequence Number) or according to predetermined order, is a kind of virtual branch flow label.A MTCH data distribution is to the configuration information of a plurality of SCCPCH, relevant MTCH radio bearer information, be by radio network controller (RNC, Radio Network Controler) notifies terminal UE by radio bearer (RB, Radio Bearer) information signaling flow.When adopting SCCPCH-ID or TSN, should comprise the mapping relations between SCCPCH-ID or TSN and SCCPCH in the configuration information, but when adopt be the order of being scheduled to the time, then need not this order of configuration in configuration information, get final product (can regard a kind of special case when adopting the TSN scheme as) by making an appointment.
When according to predetermined order, embodiment of its shunting process is: physical layer MAC is in full accord to the processing method that a MTCH is mapped to the processing procedure of a FACH and single carrier, FACH channel of a MTCH mapping, and be based upon on the Iub transmission bearer.First mapping block does not make an amendment to the Iub transmission bearer, promptly needn't be on the extended field of FACH FP frame structure the actual branch flow label that is provided with, just the FACH Frame on the FACH is carried out transparent transmission in proper order by the legacy data bag.Second mapping block of NodeB side order from the Iub transmission channel receives packet, and according to the packet sequence of receiving, according to predetermined corresponding relation packet is mapped to each SCCPCH one by one, soon packet is distributed to each SCCPCH by predefined procedure.After the foundation of Iub transmission bearer, first packet delivery that second mapping block is received is distributed to SCCPCH2, the 3rd packet subsequently for SCCPCH1, second packet subsequently and is distributed to SCCPCH3, the 4th packet subsequently and is distributed to SCCPCH1... again and carries out (system configuration under the situation of three SCCPCH) successively.A plurality of SCCPCH are configured to a plurality of carrier waves, thereby have realized multi-carrier transmission MBMS business datum.
Above-mentioned embodiment biggest advantage is to realize the most simply, need not MAC layer entity and Iub transmission bearer are made amendment; Its shortcoming is: when the data-bag lost situation appears in the Iub of certain sub-district transmission bearer, this sub-district data distribution order subsequently will be different with other sub-districts so, at this moment can cause the transfer of data step-out.But when the reliability of Iub transmission bearer is very high, just can remedy this shortcoming, the reliability of Iub transmission bearer is very high usually.
When a minute flow label is SCCPCH channel logo SCCPCH-ID, embodiment of its shunting process is: physical layer MAC is in full accord to the processing method that a MTCH is mapped to the processing procedure of a FACH and single carrier, FACH channel of a MTCH mapping, and be based upon on the Iub transmission bearer, data will be passed to NodeB through the Iub oral instructions with the form of FACH DATA FRAME after handling through MAC-m.SCCPCH channel for the identification data mapping, going into Iub by MAC-m one side holds first mapping block that the Iub transmission bearer is made modification, promptly the extended field (SpareExtension) in FACH FP structure go up to increase SCCPCH channel logo SCCPCH-ID, has mapping relations between this SCCPCH-ID and the SCCPCH to be shunted.This extended field is an option, does not dispose this field when the non-multicarrier business datum of transmission.
Provide forward access channel (FACH) Frame Protocol (FP, the Frame Protocol) structure of agreement regulation among Fig. 8: comprise head (Header) portion and payload (Payload) portion.Head has transformat indication (TFI, Transport Format Indicate), the payload portion order fill in each transmission block (TB, TransmissionBlock), to a last TB, and provide idle extended field (Spare Extension) from first TB.
Provide the FACH FP structure that the present invention revises among Figure 10, it is a kind of enhancing design to the FACH data frame format, increase SCCPCH-ID at extended field, under this alter mode, second mapping block will transmit on the SCCPCH of appointment according to its SCCPCH-ID shunting the MBMS business datum of each FACH Frame carrying, the MAC layer is set different SCCPCH signs, and the data map after NodeB will shunt is to the SCCPCH of different carrier.
At receiving terminal, the physical layer of UE is come out the signal extraction on the different SCCPCH carrier waves respectively, is delivered to its MAC layer simultaneously, according to MBMS-ID packet is sent to corresponding MTCH.
When radio network controller (RNC, Radio Network Controller) disposes SCCPCH in COMMONTRANSPORT CHANNEL SETUP REQUEST, all distributed unique Common Physical Channel ID at every SCCPCH.
Among Figure 10, a content has been expanded in 2 expressions of new information unit sign (NEW IE Flags) mark, corresponding following SCCPCH-ID, and all the other can be used for other expansion content.This SCCPCH-ID (0-255) needs 8 bits to represent.
When a minute flow label is numeral number-transmission sequence number TSN, embodiment of its shunting process is: physical layer MAC is in full accord to the processing method that a MTCH is mapped to the processing procedure of a FACH and single carrier, FACH channel of a MTCH mapping, and be based upon on the Iub transmission bearer.After data are handled through MAC-m, form that will be by FACH DATA FRAME through the Iub transmission bearer to NodeB.SCCPCH channel for the identification data mapping, going into Iub by MAC-m one side holds first mapping block that the Iub transmission bearer is modified, promptly the extended field (SpareExtension) in FACH FP structure is gone up increases TSN, referring to Fig. 9, has mapping relations between this TSN and the SCCPCH.NodeB is according to receiving that the TSN of packet is mapped to each SCCPCH with packet, and a plurality of SCCPCH are configured on a plurality of different carriers.
In conjunction with referring to Fig. 7, provide NodeB FACH among the figure and receive formation and the SCCPCH1 of data queue to be sent, SCCPCH2 and SCCPCH3.First mapping block increases Digital Transmission sequence number 1,2,3... to each FACH FP frame; Second mapping block is that unit receives packet with the frame, be buffered in NodeBFACH and receive in the formation, according between FACH FP frame transmission sequence number and the SCCPCH channel number according to certain mapping relations, be assigned in the corresponding SCCPCH data queue to be sent.As shown in FIG. FACH FP frame transmission sequence number 1, packet that 4... comprised are dealt into SCCPCH1 data queue to be sent, FACH FP frame transmission sequence number 2, packet that 5... comprised are dealt into SCCPCH2 data queue to be sent, FACH FP frame transmission sequence number 3, packet that 6... comprised are dealt into SCCPCH3 data queue to be sent, the rest may be inferred, transmit thereby packet is diverted on the physical carrier of a plurality of carrier waves, independently the encode mapping, modulation of each carrier wave sends.At this moment, the figure place of the flag transmission sequence number of of the expansion among Fig. 9 section increase can be 4 bits.A content has been expanded in 1 expression of new information unit sign (NEW IE Flags) mark, corresponding following TSN, and all the other can be used for other expansion content.
At receiving terminal, the physical layer of UE is come out the signal extraction on the different SCCPCH carrier waves respectively, be delivered to its MAC layer by a FACH, be sent to a MTCH according to MBMS-ID, packet is reset and is delivered to the upper strata by Radio Link control (RLC, Radio Link Control) according to transmission sequence number again.
When the branch flow label that increases among the FACH FP is SCCPCH-ID, can use shunting scheme shown in Figure 7 too, second mapping block is that unit receives packet with the frame, being buffered in NodeB FACH receives in the formation, according between SCCPCH-ID in the FACH frame and the SCCPCH channel number according to certain mapping relations, the data allocations that corresponding FACH frame is comprised is in corresponding SCCPCH data queue to be sent.In like manner, virtual during at minute flow label for the order of making an appointment, just with packet in the NodeB FACH reception formation by the order assignment of making an appointment in each SCCPCH data queue to be sent.
More than in three kinds of branch flow label embodiments of Jie Shaoing, end side UE is received signal on the good SCCPCH channel of configured in advance directly, its physical layer is extracted packet respectively, and with data packet delivery to the MAC-m entity, the MAC-m entity unpacks Medium Access Control (MAC) Protocol Data Unit PDU, distinguish different MBMS business according to MBMS-ID, and remove behind the MAC head Medium Access Control (MAC) Service Data Unit (SDU, Service Data Unit) sends to the RLC entity corresponding with this business, rlc layer is according to the sequence number (SN on each RLC PDU head, Sequence Number), RLC SDU is sorted, and packet is submitted to the upper strata in order.The processing of this process on the MAC layer is identical with the single carrier mode, terminal with the data on many SCCPCH by a FACH channel transfer to the MAC-m entity and be mapped to a MTCH.
Described the process of transmission of whole multicarrier MBMS service distributing and terminal reception above, provided an example below, illustrated that Iub transmission bearer two ends carry out the specific operation process of data distribution.
The TB piece amount that comprises in each FACH FP frame structure needs to be complementary with the transmittability of every SCCPCH of physical layer, system with traffic channel configuration information notice terminal, comprises the physical resource, MAC, RLC configuration parameter of many SCCPCH etc. by MCCH in the configuration information.For example, RRM algorithm by RNC is a MBMS traffic assignments physical resource, determine its parallel transmission on several carrier waves, and information such as the code channel on definite good each carrier wave, time slot, tell the MAC-m entity of network side UTRAN afterwards by primitive, the MAC-m entity can calculate on each carrier wave can transmit how many TB data volumes in the Transmission Time Interval (TTI, Transmission Timing Interval) according to the transmittability on each carrier wave.After the transmission beginning, the MAC layer obtains data from rlc layer, according to result calculated before, is that carrier resource on a plurality of SCCPCH distributes transmission block TB by the order of making an appointment or by TSN or by SCCPCH-ID.
The embodiment of the invention can realize a MBMS business datum is diverted on a plurality of SCCPCH carrier resources simply to be transmitted, and has improved professional instantaneous transmission speed, helps the power saving of terminal, also very little to the modification of agreement.
The above is preferred embodiment of the present invention only, is not to be used to limit protection scope of the present invention.
Claims (22)
1. the method for a multi-carrier mobile communication system transmitting multimedia broadcast multicast services MBMS is characterized in that comprising:
The auxiliary publish control physical channel SCCPCH of each transferring MBMS service data is configured on the carrier resource, and a plurality of such SCCPCH are configured on a plurality of carrier resources;
The MBMS business datum is diverted on the more than one SCCPCH when wrapping in through the Iub transmission bearer, and the MBMS business data packet after the shunting walks abreast and transmits on the carrier resource of an above SCCPCH.
2. the method for a kind of multi-carrier mobile communication system MBMS transmission according to claim 1 is characterized in that described shunting comprises:
The MBMS point-to-multipoint service channel MTCH of A, a carrying MBMS business datum is mapped to a forward access channel FACH, and sets up an Iub transmission bearer;
B, go into Iub end the MBMS business data packet on the FACH be provided with the branch flow label, this minute flow label and SCCPCH to be shunted have mapping relations;
C, go out Iub end, MBMS business data packet correspondence is diverted on the carrier resource of an above SCCPCH and transmits according to the branch flow label of MBMS business data packet and the mapping relations between SCCPCH.
3. the method for a kind of multi-carrier mobile communication system MBMS transmission according to claim 2, it is characterized in that: among the described step B, flow label was arranged on the extended field of FACH Frame Protocol FP structure in described minute, the transmission block TB amount that comprises among each FACH FP and the SCCPCH transmittability coupling of mapping.
4. the method for a kind of multi-carrier mobile communication system MBMS transmission according to claim 3 is characterized in that: flow label was SCCPCH identifier SCCPCH-ID in described minute, had described mapping relations between SCCPCH-ID and the SCCPCH.
5. the method for a kind of multi-carrier mobile communication system MBMS transmission according to claim 3 is characterized in that: described minute flow label is the transmission sequence number TSN of digital form, has described mapping relations between TSN and the SCCPCH.
6. according to the method for claim 4 or 5 described a kind of multi-carrier mobile communication system MBMS transmissions, it is characterized in that: described minute flow label and and SCCPCH between mapping relations also by radio network controller (RNC) by radio bearer RB information signaling terminal UE.
7. the method for a kind of multi-carrier mobile communication system MBMS transmission according to claim 3, it is characterized in that: described minute flow label be virtual to be a kind of order of making an appointment to have the mapping relations of making an appointment between order that this is made an appointment and the SCCPCH.
8. according to the method for claim 2,4,5 or 7 described a kind of multi-carrier mobile communication system MBMS transmissions, it is characterized in that the shunting described in the described step C comprises:
C1, set up NodeB FACH and receive that formation is used to receive the MBMS business data packet and corresponding SCCPCH sets up each SCCPCH formation to be sent;
C2, take out the MBMS business data packet successively from NodeB FACH receives formation, the mapping relations by between described minute flow label and SCCPCH are diverted to each SCCPCH formation to be sent with packet;
The SCCPCH that MBMS business datum in C3, each SCCPCH formation to be sent wraps in corresponding carrier resource goes up transmission.
9. the method for a multi-carrier mobile communication system transmitting multimedia broadcast multicast services MBMS is characterized in that comprising:
The auxiliary publish control physical channel SCCPCH of each transferring MBMS service data is configured on the carrier resource, and a plurality of such SCCPCH are configured on a plurality of carrier resources;
Transmitter side is mapped to a MBMS point-to-multipoint service channel MTCH on the forward access channel FACH, and set up an Iub transmission bearer, by these Iub transmission bearer two ends the MBMS business data packet on the FACH is diverted on the more than one SCCPCH, the MBMS business data packet after the shunting walks abreast and transmits on the carrier resource of an above SCCPCH;
Receiver side receives the MBMS business data packet on the carrier resource of an above SCCPCH, be delivered to high level by a FACH, consists of a MBMS business datum.
10. the method for a kind of multi-carrier mobile communication system MBMS transmission according to claim 9 is characterized in that the shunting at described transmitter side Iub transmission bearer two ends, comprising:
B1, go into Iub end the MBMS business data packet on the FACH be provided with the branch flow label, this minute flow label and SCCPCH to be shunted have mapping relations;
C1, go out Iub end, the MBMS business data packet is diverted to corresponding SCCPCH goes up transmission according to the branch flow label of MBMS business data packet and the mapping relations between SCCPCH.
11. the method for a kind of multi-carrier mobile communication system MBMS transmission according to claim 10, it is characterized in that: among the described step B1, flow label was arranged on the extended field of FACH Frame Protocol FP structure in described minute, the transmission block TB amount that comprises among each FACH FP and the SCCPCH transmittability coupling of mapping.
12. the method for a kind of multi-carrier mobile communication system MBMS transmission according to claim 11 is characterized in that: flow label was SCCPCH identifier SCCPCH-ID in described minute, had described mapping relations between SCCPCH-ID and the SCCPCH.
13. the method for a kind of multi-carrier mobile communication system MBMS transmission according to claim 11 is characterized in that: described minute flow label is the transmission sequence number TSN of digital form, has described mapping relations between TSN and the SCCPCH.
14. the method according to claim 12 or 13 described a kind of multi-carrier mobile communication system MBMS transmissions is characterized in that: described minute flow label and and SCCPCH between mapping relations also by radio network controller (RNC) by radio bearer RB information signaling terminal UE.
15. the method for a kind of multi-carrier mobile communication system MBMS transmission according to claim 11, it is characterized in that: described minute flow label be virtual to be a kind of order of making an appointment to have the mapping relations of making an appointment between order that this is made an appointment and the SCCPCH.
16. the method according to claim 10,12,13 or 15 described a kind of multi-carrier mobile communication system MBMS transmissions is characterized in that described step C1, described shunting comprises:
C11, set up NodeB FACH and receive that formation is used to receive the MBMS business data packet and corresponding SCCPCH sets up each SCCPCH formation to be sent;
C12, take out the MBMS business data packet successively from NodeB FACH receives formation, the mapping relations by between described minute flow label and SCCPCH are diverted to each SCCPCH formation to be sent with packet;
Packet in C13, each SCCPCH formation to be sent transmits on the SCCPCH of corresponding carrier resource.
17. the device of a multi-carrier mobile communication system transmitting multimedia broadcast multicast services MBMS is characterized in that:
Comprise first mapping block and second mapping block that lay respectively at Iub transmission bearer two ends;
First mapping block of going into Iub end transmission bearer is provided with the branch flow label to the MBMS business data packet on FACH of transmitter side, this minute flow label and auxiliary publish control physical channel SCCPCH to be shunted have mapping relations;
Go out second mapping block of Iub end transmission bearer, according to the branch flow label of MBMS business data packet and the mapping relations between auxiliary publish control physical channel SCCPCH, the MBMS business data packet is diverted to corresponding SCCPCH goes up transmission, different SCCPCH is configured on a plurality of carrier resources.
18. the device of a kind of multi-carrier mobile communication system MBMS transmission according to claim 17, it is characterized in that: described first mapping block, described minute flow label is arranged on the extended field of FACH Frame Protocol FP structure the transmission block TB amount that comprises among each FACH FP and the SCCPCH transmittability coupling of mapping.
19. the device of a kind of multi-carrier mobile communication system MBMS transmission according to claim 18 is characterized in that: flow label was SCCPCH identifier SCCPCH-ID in described minute, had described mapping relations between SCCPCH-ID and the SCCPCH.
20. the device of a kind of multi-carrier mobile communication system MBMS transmission according to claim 18 is characterized in that: described minute flow label is the transmission sequence number TSN of digital form, has described mapping relations between TSN and the SCCPCH.
21. the device of a kind of multi-carrier mobile communication system MBMS transmission according to claim 18, it is characterized in that: described minute flow label be virtual to be a kind of order of making an appointment to have the mapping relations of making an appointment between order that this is made an appointment and the SCCPCH.
22., it is characterized in that described second mapping block comprises according to the device of the described a kind of multi-carrier mobile communication system MBMS transmission of arbitrary claim in the claim 17 to 21:
A NodeB FACH receives formation and each the SCCPCH to be sent formation corresponding with SCCPCH; The MBMS business data packet that receives is put into NodeB FACH in regular turn and is received formation; Receive the MBMS business data packet of taking out successively the formation from NodeBFACH, by the mapping relations between described minute flow label and SCCPCH, be diverted to each SCCPCH formation to be sent, the packet in each SCCPCH formation to be sent is transmitted on the SCCPCH of corresponding carrier resource.
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| CN101771429B (en) * | 2008-12-30 | 2013-06-12 | 中兴通讯股份有限公司 | Signal channel processing method based on multi-carrier wave system |
| CN101895820B (en) * | 2009-05-21 | 2014-04-30 | 中兴通讯股份有限公司 | Method and system for realizing multimedia broadcasting and multicasting service transmission channel bearing |
| CN102056221B (en) * | 2009-11-03 | 2014-04-16 | 电信科学技术研究院 | Positioning processing method and equipment |
| CN102209349B (en) * | 2010-03-29 | 2013-11-06 | 电信科学技术研究院 | Transmission method of transmission sequence number (TSN) and apparatus thereof |
| CN102469524B (en) * | 2010-11-18 | 2015-05-13 | 华为技术有限公司 | Method, terminal, equipment and system for realizing carrier load balance |
| ES2841061T3 (en) * | 2012-05-30 | 2021-07-07 | Huawei Tech Co Ltd | Method and device for programming a multi-stream transmission |
| CN114731331B (en) * | 2019-11-19 | 2024-05-03 | 上海诺基亚贝尔股份有限公司 | Efficient multipoint transmission in time-sensitive networks |
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