CN101895821B - Bearing method and device of multimedia broadcast multicast service logical channels - Google Patents
Bearing method and device of multimedia broadcast multicast service logical channels Download PDFInfo
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- CN101895821B CN101895821B CN200910085505.1A CN200910085505A CN101895821B CN 101895821 B CN101895821 B CN 101895821B CN 200910085505 A CN200910085505 A CN 200910085505A CN 101895821 B CN101895821 B CN 101895821B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/0001—Arrangements for dividing the transmission path
- H04L5/0003—Two-dimensional division
- H04L5/0005—Time-frequency
- H04L5/0007—Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/30—Resource management for broadcast services
Abstract
The invention discloses a bearing method of multimedia broadcast multicast service (MBMS) logical channels, comprising the following step: an MBMS control channel (MCCH) is borne in a subframe with an orthogonal frequency division multiplexing (OFDM) symbol or a physical resource block (PRB) or a subcarrier or a subcarrier cluster as a unit. The invention further discloses a bearing device for the MBMS logical channels, which comprises a first bearing unit for bearing the MCCH in the subframe with the OFDM symbol or the PRB or the subcarrier or the subcarrier cluster as the unit. In the invention, the logical channels such as the MCCH and the like are borne into the subframe of a radio frame based on a time domain, a frequency domain and a PRB mode, thus achieving more flexible resource allocation and maximum resource utilization rate during the process of bearing the logical channels, and enhancing the spectral efficiency of a system.
Description
Technical field
The present invention relates to multimedia broadcast multi-broadcasting business (MBMS, Multimedia Broadcast MulticastService) bearing technology of logic channel, particularly relate to bearing method and the device of multimedia broadcast multicast service logical channels in a kind of Long Term Evolution (LTE, Long TermEvolution) system.
Background technology
In order to effectively utilize mobile network resource, third generation partner program (3GPP, 3rd GenerationPartnership Project) propose MBMS, this business is a kind of technology transmitting data from a data source to multiple target, achieve sharing of Internet resources, improve the utilance of Internet resources.The MBMS of 3GPP definition can not only realize classes of messages multicast and the broadcast of plain text low rate, but also broadcast and the multicast of high-speed multimedia service can be realized, multiple abundant video, audio frequency and multimedia service are provided, this has complied with the trend of following Mobile data development undoubtedly, and the development for 3G provides better business prospect.
In LTE system, MBMS can adopt mixed carrier mode to send, mixed carrier mode refers to that unicast service (Unicast) and multicast service (MBMS) send on same carrier wave in the mode that the time-division carries, and the time-division least unit of carrying is subframe.Specify in current LTE, use dual unit method to configure radio frames and the subframe of bearing MBMS service, specifically describe as follows:
The first order realizes the radio frames configuration of carrying MBMS, meets equation SFN modradioFrameAllocationPeriod=radioFrameAllocationOffset below.Wherein, SFN is the abbreviation of SystemFrame Number System Frame Number, i.e. the radio frames numbering of system, from 0 to 1023.RadioFrameAllocationPeriod represents MBSFN wireless frame period, it can be got in 1,2,4,8,16,32} any one.RadioFrameAllocationOffset represents the skew of MBSFN radio frames, and its value is integer and is less than the numerical value of selected MBSFN wireless frame period, is more than or equal to 0.Mod represents that SFN is to radioFrameAllocationPeriod delivery or complementation.The above-mentioned carrying MBMS radio frames that is configured to is called MBSFN radio frames.
The second level realizes which the subframe bearing MBMS service concrete in carrying MBMS radio frames, use the method for bitmap, owing to specifying Frequency Division Duplexing (FDD) (FDD in LTE, Frequency Division Duplex) subframe #0 under pattern, #4, #5, #9 can not bearing MBMS services, time division duplex (TDD, Time DivisionDuplex) subframe #0 under pattern, #1, #5, #6 can not bearing MBMS services, so use the bitmap of 6 bits to describe remaining 6 which bearing MBMS services of subframe.The sub-frame configuration of the bearing MBMS service in each MBSFN radio frames is identical.Because dual unit configuration signal sends to user terminal on BCCH, so the sub-frame configuration in the MBSFN radio frames of each Broadcast Control Channel (BCCH, Broadcast Control Channel) in the amendment cycle can not change.In above-mentioned MBSFN radio frames, the subframe of bearing MBMS service is called MBSFN sub-frame, also claims multicast subframe.
Front 1 or 2 orthogonal frequency carrying (OFDM of MBSFN sub-frame, Orthogonal FrequencyDivision Multiplexing) symbol is for transmitting the control information of clean culture (Unicast) business, also referred to as Physical Downlink Control Channel (PDCCH, Physical Downlink Control Channel), in this subframe, remaining resource is used for sending MBMS or other business.
The configuration of MBSFN radio frames and MBSFN sub-frame can be realized by the method for above-mentioned existing dual unit, the MBSFN sub-frame configured is exactly the physical resource constituting actual transmissions MBMS, i.e. Physical Multicast Channel (PMCH, Physical Multicast Channel).PMCH carries multicast transmission channel (MCH, Multicast Channel) channel.A series of MBSFN sub-frame that MCH is configured by the collocation method by dual unit are formed.In LTE system, not getting rid of MCH can be divided into multiple MCH by certain rule at present.Such as using the part MBSFN sub-frame in the MBSFN sub-frame configured by dual unit as MCH1, using remaining MBSFN sub-frame as MCH2.
At present, specify in LTE R9 that MBMS Control Channel (MCCH, MBMS Control Channel) is mapped in MCH, but do not provide concrete carrying, mapping method.
Summary of the invention
In view of this, main purpose of the present invention is the bearing method and the device that provide a kind of multimedia broadcast multicast service logical channels, and MBMS logic channel is carried in LTE system frame better.
For achieving the above object, technical scheme of the present invention is achieved in that
A bearing method for multimedia broadcast multicast service logical channels, comprising:
Multimedia broadcast multi-broadcasting business MBMS Control Channel MCCH carries OFDM symbol by orthogonal frequency or carries in subframe by Physical Resource Block PRB or by subcarrier or in units of cluster of subcarriers.
Preferably, when MCCH carries in units of OFDM symbol, MCCH is carried in subframe and carries in the OFDM symbol of control information of unicast service, or MCCH is carried in one or more continuous print OFDM symbol of the OFDM symbol of next-door neighbour's carrying control information of unicast service in subframe.
Preferably, described method also comprises:
MBMS scheduling channel MSCH, MBMS transmission channel MTCH and MBMS notify to carry in the remaining resource of subframe of carrying MCCH in units of one or more in indication information at least one in OFDM symbol, PRB, subcarrier and cluster of subcarriers.
Preferably, when MCCH carries in units of subcarrier or cluster of subcarriers, the subcarrier of carrying or cluster of subcarriers are continuous or discrete on frequency domain.
Preferably, the subcarrier or the cluster of subcarriers that carry MCCH account for one or more continuous print OFDM symbol in time domain.
Preferably, described method also comprises:
MSCH, MTCH and MBMS notify to carry in the remaining resource of subframe of carrying MCCH in units of one or more in indication information at least one in PRB, subcarrier and cluster of subcarriers.
Preferably, when MCCH carries in units of PRB, MCCH to be carried in subframe in PRB corresponding to the first six or seven OFDM symbol, or, MCCH is carried in PRB paired in subframe, and described paired PRB is continuous print two PRB in the identical time domain of subframe frequency domain.
Preferably, the PRB carrying MCCH is continuous or discrete on frequency domain.
Preferably, described method also comprises:
One or more in MSCH, MTCH and MBMS notice indication information carries in units of PRB in the remaining resource of subframe of carrying MCCH.
Preferably, described subframe comprises multicast subframe or unicast sub-frame.
A bearing method for multimedia broadcast multicast service logical channels, comprising:
MSCH, MTCH and MBMS notify to carry in subframe in units of one or more in indication information at least one in OFDM symbol, PRB, subcarrier and cluster of subcarriers.Wherein, described subframe comprises multicast subframe or unicast sub-frame.
A bogey for multimedia broadcast multicast service logical channels, comprising:
First load bearing unit, for carrying MCCH by OFDM symbol or by PRB or by subcarrier or in units of cluster of subcarriers in subframe.
Preferably, when MCCH carries by described first load bearing unit in units of OFDM symbol, MCCH is carried in subframe and carries in the OFDM symbol of control information of unicast service, or MCCH is carried in one or more continuous print OFDM symbol of the OFDM symbol of next-door neighbour's carrying control information of unicast service in subframe.
Preferably, described device also comprises:
Second load bearing unit, carries in units of one or more in indication information at least one in OFDM symbol, PRB, subcarrier and cluster of subcarriers for MSCH, MTCH and MBMS being notified in the remaining resource of subframe of carrying MCCH.
Preferably, when MCCH carries by described first load bearing unit in units of subcarrier or cluster of subcarriers, the subcarrier of carrying or cluster of subcarriers are continuous or discrete on frequency domain.
Preferably, the subcarrier or the cluster of subcarriers that carry MCCH account for one or more continuous print OFDM symbol in time domain.
Preferably, described device also comprises:
Second load bearing unit, carries in units of one or more in indication information at least one in PRB, subcarrier and cluster of subcarriers for MSCH, MTCH and MBMS being notified in the remaining resource of subframe of carrying MCCH.
Preferably, when MCCH carries by described first load bearing unit in units of PRB, MCCH to be carried in subframe in PRB corresponding to the first six or seven OFDM symbol, or, MCCH is carried in PRB paired in subframe, and described paired PRB is continuous print two PRB in the identical time domain of subframe frequency domain.
Preferably, the PRB carrying MCCH is continuous or discrete on frequency domain.
Preferably, described device also comprises:
Second load bearing unit, for carrying one or more in MSCH, MTCH and MBMS notice indication information in units of PRB in the remaining resource of subframe of carrying MCCH.
In the present invention, by the logic channels such as MCCH being carried in the subframe in radio frames by the form of time domain, frequency domain and PRB, make Resourse Distribute more flexible, can maximize the utilance of resource in logic channel carrying, thus improve the spectrum efficiency of system.
Accompanying drawing explanation
Fig. 1 is the subframe structure schematic diagram of MCCH of the present invention when carrying in units of PRB;
Fig. 2 is the subframe structure schematic diagram of MCCH of the present invention when carrying in units of OFDM symbol;
Fig. 3 is the subframe structure schematic diagram of MCCH of the present invention when carrying in units of subcarrier or cluster of subcarriers;
Fig. 4 is the composition structural representation of the bogey embodiment one of multimedia broadcast multicast service logical channels of the present invention;
Fig. 5 is the composition structural representation of the bogey embodiment two of multimedia broadcast multicast service logical channels of the present invention;
Fig. 6 is the composition structural representation of the bogey embodiment three of multimedia broadcast multicast service logical channels of the present invention.
Embodiment
Basic thought of the present invention is: by the data of the logic channels such as MCCH being carried to by the form of time domain, frequency domain and PRB in the subframe in radio frames, (this subframe can be the MBSFN sub-frame forming MCH, also can be the subframe that unicast service is corresponding), make Resourse Distribute more flexible, can maximize the utilance of resource in logic channel carrying, thus improve the spectrum efficiency of system.
For making the object, technical solutions and advantages of the present invention clearly understand, by the following examples also with reference to accompanying drawing, the present invention is described in more detail.
In the present invention, because in current LTE, MCCH is defined as logic channel, be first mapped to transmission channel according to the regulation logic channel of LTE, transmission channel is mapped to physical channel again.So in the present invention in case of no particular description, MCCH represents the data on the physical channel that MCCH is corresponding, " MCCH " expression " data of MCCH ".Such as, MCCH is carried in subframe in the mode of PRB.Be interpreted as that the data of MCCH are carried in subframe in the mode of PRB.Define corresponding physical channel (supposing to be decided to be PMCCH) if LTE is MCCH, namely can think that PMCCH is carried in subframe in the mode of PRB.
Embodiment one
This example is introduced MCCH physically based deformation Resource Block (PRB, Physical ResourceBlock) in subframe and is carried out the situation carried.Fig. 1 is the subframe structure schematic diagram of MCCH of the present invention when carrying in units of PRB, as shown in Figure 1, PRB is made up of the resource of time-frequency bidimensional, be 12 subcarriers at frequency domain direction, time domain direction is that 6 OFDM symbol are (for standard cyclic prefix (CP, Cyclic Prefix) subframe, PRB size is 14 subcarriers, and time orientation is 7 OFDM symbol).Owing to specifying in LTE system, the control information of front 1 or 2 the OFDM symbol carrying unicast service of the MBSFN sub-frame of each expansion CP, also referred to as PDCCH.So for comprising the PRB of front 1 or 2 OFDM symbol, actual is to remove the resource belonged in front 1 or 2 OFDM symbol when using.PRB in a subframe is determined by system bandwidth, subcarrier spacing (in LTE system, the subcarrier spacing of unicast service is 15KHz).Such as, during the system of 20M bandwidth, the protection interval that removing is reserved, available subcarrier is 1200, and so a subframe just has 200 PRB, and these PRB number according to certain rule.Wherein continuous print two PRB on frequency same time in a subframe are called a pair PRB.When carrying out scheduling to PRB and using, with a pair PRB for thread.
In this example, MCCH carries in units of PRB.Be specially system how many according to the data volume in MCCH, or determine the quantity of PRB according to the maximum amount of data of the data volume in MCCH; Distribute the PRB of concrete carrying MCCH according to the PRB quantity determined, now can carry in units of paired PRB, also can carry in units of single PRB, and above-mentioned configuration is formed corresponding signaling send to user terminal; Send on the data-mapping in MCCH to the PRB distributed.Wherein, when MCCH carries in units of single PRB, be preferably carried in PRB corresponding to front 6 OFDM symbol (subframe of standard C P is front 7 OFDM symbol).No matter be carry MCCH in units of paired PRB, or carry MCCH in units of single PRB, PRB preferably continuous print on frequency domain of carrying MCCH can certainly be discrete.
The data volume of MCCH is generally fixing, or maximum amount of data is determined, fixedly can be used for carrying the quantity of PRB of MCCH when so implementing, and fixes some PRB and be used for carrying MCCH.The benefit done like this is, when the PRB of carrying MCCH fixes, can be stored in user terminal as configuration information, network side does not need the interim PRB distributing carrying MCCH, which PRB of informing user terminal is not needed to carry MCCH yet, user terminal can know which PRB in subframe carries MCCH, the PRB directly arranged in this subframe receives MCCH, decreases the signaling consumption between network side and user terminal.
Receiving terminal is when receiving MCCH, first must know and which subframe carries MCCH, next is informed in this subframe which PRB concrete carries MCCH, after receiving the PRB of carrying MCCH, control information according to MCCH is resolved the data received, final acquisition MCCH data.Due to user terminal to MCCH receive and be demodulated into prior art, repeat no more it here and realize details.
In this example, in the subframe of carrying MCCH or in other subframes, one or more in MBMS scheduling channel (MSCH), MBMS transmission channel (MTCH, MBMS Traffic Channel) and MBMS notice indication information (MBMS Notification Indication) also carries in units of PRB.
Embodiment two
This example introduces the situation that MCCH carries out based on OFDM symbol carrying in subframe.Fig. 2 is the subframe structure schematic diagram of MCCH of the present invention when carrying in units of OFDM symbol, and as shown in Figure 2, an OFDM symbol is made up of all subcarriers of system, is minimum not subdivisible granularity in time domain direction.For LTE system, under standard C P and expansion CP, OFDM symbol can resource be equal, namely sub-carrier number is the same.During standard C P, a subframe comprises 14 OFDM symbol, and during expansion CP, a subframe comprises 12 OFDM symbol.Owing to specifying in LTE, the control information of front 1 or 2 the OFDM symbol carrying unicast service of each multicast service subframe.The data volume that in a subframe, OFDM symbol can carry is determined by the bandwidth of system, subcarrier spacing; in LTE system, when bandwidth is 20M, the protection interval that removing is reserved; available subcarrier is 1200, and so in subframe, an OFDM symbol is just made up of 1200 subcarriers.
In this example, carry in units of OFDM symbol by MCCH.System is how many according to the data volume in MCCH, or the quantity of the maximum amount of data determination OFDM symbol according to the data volume in MCCH, determine the quantity of the OFDM symbol carrying MCCH, now in units of OFDM symbol, carry MCCH, and above-mentioned bearing mode is formed corresponding signaling to user terminal; Data-mapping in MCCH is sent on the OFDM symbol distributed.
MCCH can be carried in the unicast service control domain of subframe, namely in PDCCH.MCCH is carried on before unicast sub-frame in 1 to 3 OFDM symbol, or in front 1 to 2 OFDM symbol of multicast subframe.Namely the control information in MCCH and the control information of unicast service are carried on PDCCH jointly.
Also in one that is close to after MCCH can being carried on subframe unicast service control domain or continuous multiple OFDM symbol, in the OFDM symbol be namely close to after PDCCH.
The data volume of MCCH is generally fixing, or maximum amount of data is determined, this example fixedly can be used for carrying the quantity of OFDM symbol of MCCH, and fixes some OFDM symbol and be used for carrying MCCH.When the OFDM symbol carrying MCCH is fixing in subframe, the information of the OFDM symbol of this carrying MCCH can be configured in user terminal, network side does not need the OFDM symbol temporarily determining to carry MCCH, which OFDM symbol of informing user terminal need not carry MCCH yet.By configuration information, user terminal can know that the OFDM symbol in which subframe carries MCCH, the corresponding OFDM symbol directly in this subframe receives MCCH.Thus the signaling consumption decreased between network side and user terminal.
Receiving terminal, according to the OFDM symbol in the subframe of known carrying MCCH, receives the OFDM symbol of carrying MCCH, and the control information according to MCCH is resolved the data received, final acquisition MCCH data.
In the present embodiment in the subframe of carrying MCCH or in other subframes, one or more in MSCH, MTCH and MBMS notice indication information can be carried in units of OFDM symbol.Also one or more in MSCH, MTCH and MBMS notice indication information can be carried in units of PRB.Also one or more in MSCH, MTCH and MBMS notice indication information can be carried in units of subcarrier or cluster of subcarriers.Subcarrier and single sub-carrier, time domain takies 12 or 14 OFDM symbol.Due to 1 or 2 OFDM symbol carrying before 1 to 3 OFDM symbol before unicast sub-frame and multicast subframe is the control information (PDCCH) of unicast service, therefore, when carrying MSCH, MTCH and MBMS notice indication information in units of subcarrier, subcarrier is not 12 or 14 OFDM symbol, be in single sub-carrier except carrying PDCCH or and MCCH OFDM symbol except OFDM symbol.Cluster of subcarriers refers to two or more continuous print subcarrier, consider the consideration of system compatibility and channel demodulation complexity, continuous number of subcarriers in cluster of subcarriers in the present invention preferably 12 integral multiple, if 12,24 continuous print subcarriers are a cluster of subcarriers etc.
Embodiment three
This example introduces situation when MCCH carries based on subcarrier or cluster of subcarriers, Fig. 3 is the subframe structure schematic diagram of MCCH of the present invention when carrying in units of subcarrier or cluster of subcarriers, as shown in Figure 3, the subcarrier in a subframe is the single sub-carrier taking 12 OFDM symbol.Such as, in LTE system regulation subcarrier be spaced apart 15KHz, be the resource of 20M for bandwidth, the boundary belt that removing is reserved, available subcarrier is 1200.Generally subcarrier is one group with the multiple of 12 to carry out using, and so just meets the size of a PRB in frequency direction.In the present invention, continuous subcarrier multiple in subframe is called a cluster of subcarriers, if 12 continuous subcarriers are a cluster of subcarriers, or 24 continuous subcarriers are a cluster of subcarriers.
MCCH is carried in units of subcarrier or cluster of subcarriers.System is how many according to the data volume in MCCH, or according to the maximum amount of data determination subcarrier of the data volume in MCCH or the quantity of cluster of subcarriers; Quantity according to the subcarrier determined or cluster of subcarriers is determined specifically to carry the subcarrier of MCCH or the quantity of cluster of subcarriers, and above-mentioned configuration mode is informed user terminal; Data-mapping in MCCH is sent on the OFDM symbol distributed.When carrying the subcarrier of MCCH or cluster of subcarriers is fixing in subframe, fixing subcarrier or the cluster of subcarriers information of carrying MCCH are configurable in user terminal, and network side need not this information of informing user terminal separately again.
For the communication system of multicarrier, can directly MCCH be carried on a carrier wave, and by other service bearers indicated by MCCH on other carrier waves.
Consider the compatibility of communication system, when carrying MCCH in units of subcarrier or cluster of subcarriers, subcarrier or cluster of subcarriers can be made up of continuous print subcarrier in a frequency direction, also can be made up of discrete subcarrier, the unit at time orientation of subcarrier or cluster of subcarriers also can be one or more OFDM symbol of continuous print in subcarrier or cluster of subcarriers.Such as, for multicast service subframe, the unit at time orientation of subcarrier or cluster of subcarriers can be the 3rd, 4 OFDM symbol in time domain.
Receiving terminal is when receiving MCCH, first must know and which subframe carries MCCH, next is informed in this subframe and which subcarrier concrete or cluster of subcarriers carries MCCH, then subcarrier or the cluster of subcarriers of carrying MCCH is received, and according to the control information of MCCH, the data received are resolved, final acquisition MCCH data.
In the present embodiment in the subframe of carrying MCCH or in other subframes, one or more in MSCH, MTCH and MBMS notice indication information can be carried in units of subcarrier or cluster of subcarriers, also one or more in MSCH, MTCH and MBMS notice indication information can be carried in units of PRB.
Fig. 4 is the composition structural representation of the bogey embodiment one of multimedia broadcast multicast service logical channels of the present invention, as shown in Figure 4, the bogey of this exemplary multi-media broadcast multicast service logical channels comprises the first load bearing unit 40 and the second load bearing unit 41, wherein, the first load bearing unit 40 for carrying MCCH in units of OFDM symbol in subframe.MCCH is carried in subframe and carries in the OFDM symbol of control information of unicast service by the first load bearing unit 40, or MCCH is carried in one or more continuous print OFDM symbol of the OFDM symbol of next-door neighbour's carrying control information of unicast service in subframe.Second load bearing unit 41 carries in units of one or more in indication information at least one in OFDM symbol, PRB, subcarrier and cluster of subcarriers for MSCH, MTCH and MBMS being notified in the remaining resource of subframe of carrying MCCH.One or more in MSCH, MTCH and MBMS notice indication information also can be carried in other subframes by aforesaid bearing mode.
It will be appreciated by those skilled in the art that the practical function of each processing unit in the bogey of the multimedia broadcast multicast service logical channels shown in Fig. 4 can refer to the associated description in embodiment two and understands.In the bogey of the multimedia broadcast multicast service logical channels shown in Fig. 4, the function of each unit realizes by the program run on processor, also realizes by concrete logical circuit.
Fig. 5 is the composition structural representation of the bogey embodiment one of multimedia broadcast multicast service logical channels of the present invention, as shown in Figure 5, the bogey of this exemplary multi-media broadcast multicast service logical channels comprises the first load bearing unit 50 and the second load bearing unit 51, wherein, the first load bearing unit 50 for carrying MCCH in units of subcarrier or cluster of subcarriers in subframe.When MCCH carries by the first load bearing unit 50 in units of subcarrier or cluster of subcarriers, the subcarrier of carrying or cluster of subcarriers are continuous or discrete on frequency domain.Subcarrier or the cluster of subcarriers of MCCH carrying account for one or more continuous print OFDM symbol in time domain.Second load bearing unit 51 carries in units of one or more in indication information at least one in PRB, subcarrier and cluster of subcarriers for MSCH, MTCH and MBMS being notified in the remaining resource of subframe of carrying MCCH.One or more in MSCH, MTCH and MBMS notice indication information also can be carried in other subframes by aforesaid bearing mode.
It will be appreciated by those skilled in the art that the practical function of each processing unit in the bogey of the multimedia broadcast multicast service logical channels shown in Fig. 5 can refer to the associated description in embodiment three and understands.In the bogey of the multimedia broadcast multicast service logical channels shown in Fig. 5, the function of each unit realizes by the program run on processor, also realizes by concrete logical circuit.
Fig. 6 is the composition structural representation of the bogey embodiment three of multimedia broadcast multicast service logical channels of the present invention, as shown in Figure 6, the bogey of this exemplary multi-media broadcast multicast service logical channels comprises the first load bearing unit 60 and the second load bearing unit 61, wherein, first load bearing unit 60 for carrying MCCH in units of PRB in subframe, to be carried in subframe in PRB corresponding to the first six or seven OFDM symbol by MCCH, or, MCCH is carried in PRB paired in subframe, described paired PRB is continuous print two PRB in the identical time domain of subframe frequency domain.The PRB of carrying MCCH is continuous or discrete on frequency domain.By MSCH, MTCH and MBMS, second load bearing unit 61 is for notifying that indication information carries in units of PRB in the remaining resource of subframe of carrying MCCH.One or more in MSCH, MTCH and MBMS notice indication information also can be carried in other subframes by aforesaid bearing mode.
It will be appreciated by those skilled in the art that the practical function of each processing unit in the bogey of the multimedia broadcast multicast service logical channels shown in Fig. 6 can refer to the associated description in embodiment one and understands.In the bogey of the multimedia broadcast multicast service logical channels shown in Fig. 6, the function of each unit realizes by the program run on processor, also realizes by concrete logical circuit.
The bogey of multimedia broadcast multicast service logical channels of the present invention also only can comprise load bearing unit, carries in units of one or more in indication information at least one in OFDM symbol, PRB, subcarrier and cluster of subcarriers for MSCH, MTCH and MBMS being notified in subframe.The concrete implementation of load bearing unit is see associated description in previous embodiment one to three.
The above, be only preferred embodiment of the present invention, be not intended to limit protection scope of the present invention.
Claims (11)
1. a bearing method for multimedia broadcast multicast service logical channels, is characterized in that, comprising:
Multimedia broadcast multi-broadcasting business MBMS Control Channel MCCH carries OFDM symbol by orthogonal frequency or carries in subframe in units of Physical Resource Block PRB;
Wherein, carrying the described OFDM symbol of MCCH or the quantity of PRB and position allows fixing; The described OFDM symbol that is fixed or PRB information store in the user terminal;
When MCCH carries in units of OFDM symbol, MCCH is carried in subframe and carries in the OFDM symbol of control information of unicast service, or MCCH is carried in one or more continuous print OFDM symbol of the OFDM symbol of next-door neighbour's carrying control information of unicast service in subframe;
When MCCH carries in units of PRB, MCCH to be carried in subframe in PRB corresponding to the first six or seven OFDM symbol, or MCCH is carried in PRB paired in subframe, and described paired PRB is continuous print two PRB in the identical time domain of subframe frequency domain.
2. method according to claim 1, is characterized in that, described method also comprises:
MBMS scheduling channel MSCH, MBMS transmission channel MTCH and MBMS notify to carry in the remaining resource of subframe of carrying MCCH in units of one or more in indication information at least one in OFDM symbol, PRB, subcarrier and cluster of subcarriers.
3. method according to claim 1, is characterized in that, the PRB of carrying MCCH is continuous or discrete on frequency domain.
4. method according to claim 1, is characterized in that, described subframe comprises multicast subframe or unicast sub-frame.
5. a bearing method for multimedia broadcast multicast service logical channels, is characterized in that, comprising:
MSCH, MTCH and MBMS notify to carry in subframe in units of one or more in indication information at least one in OFDM symbol, PRB, subcarrier and cluster of subcarriers;
Wherein, carry MSCH, MTCH and MBMS and notify that the described OFDM symbol of indication information or the quantity of PRB or subcarrier or cluster of subcarriers and position allow to fix; The described OFDM symbol that is fixed or PRB or subcarrier or cluster of subcarriers information store in the user terminal.
6. method according to claim 5, is characterized in that, described subframe comprises multicast subframe or unicast sub-frame.
7. a bogey for multimedia broadcast multicast service logical channels, is characterized in that, comprising:
First load bearing unit, for carrying MCCH by OFDM symbol or in units of PRB in subframe; Wherein,
Carrying the described OFDM symbol of MCCH or the quantity of PRB and position allows fixing; The described OFDM symbol that is fixed or PRB information store in the user terminal;
Wherein, when MCCH carries by described first load bearing unit in units of OFDM symbol, MCCH is carried in subframe and carries in the OFDM symbol of control information of unicast service, or MCCH is carried in one or more continuous print OFDM symbol of the OFDM symbol of next-door neighbour's carrying control information of unicast service in subframe;
When MCCH carries by described first load bearing unit in units of PRB, MCCH to be carried in subframe in PRB corresponding to the first six or seven OFDM symbol, or MCCH is carried in PRB paired in subframe, described paired PRB is continuous print two PRB in the identical time domain of subframe frequency domain.
8. device according to claim 7, is characterized in that, described device also comprises:
Second load bearing unit, carries in units of one or more in indication information at least one in OFDM symbol, PRB, subcarrier and cluster of subcarriers for MSCH, MTCH and MBMS being notified in the remaining resource of subframe of carrying MCCH.
9. device according to claim 7, is characterized in that, the PRB of carrying MCCH is continuous or discrete on frequency domain.
10. a bogey for multimedia broadcast multicast service logical channels, is characterized in that, comprising:
Load bearing unit, carries in units of one or more in indication information at least one in OFDM symbol, PRB, subcarrier and cluster of subcarriers for MSCH, MTCH and MBMS being notified in subframe;
Wherein, carry MSCH, MTCH and MBMS and notify that the described OFDM symbol of indication information or the quantity of PRB or subcarrier or cluster of subcarriers and position allow to fix; The described OFDM symbol that is fixed or PRB or subcarrier or cluster of subcarriers information store in the user terminal.
11. devices according to claim 10, is characterized in that, described subframe comprises multicast subframe or unicast sub-frame.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910085505.1A CN101895821B (en) | 2009-05-22 | 2009-05-22 | Bearing method and device of multimedia broadcast multicast service logical channels |
| PCT/CN2010/072169 WO2010133122A1 (en) | 2009-05-22 | 2010-04-23 | Bearing method and device for logical channel of multimedia broadcast multicast service |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN200910085505.1A CN101895821B (en) | 2009-05-22 | 2009-05-22 | Bearing method and device of multimedia broadcast multicast service logical channels |
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| Publication Number | Publication Date |
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| CN101895821A CN101895821A (en) | 2010-11-24 |
| CN101895821B true CN101895821B (en) | 2015-01-28 |
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| WO (1) | WO2010133122A1 (en) |
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| CN102916918B (en) * | 2011-08-01 | 2016-03-30 | 华为技术有限公司 | Notify the method for MCCH message alteration, base station and terminal |
| CN103563468B (en) * | 2011-08-12 | 2017-07-21 | 太阳专利信托公司 | Transmission device, reception device, transmission method, and reception method |
| JP5832914B2 (en) * | 2012-01-27 | 2015-12-16 | シャープ株式会社 | COMMUNICATION SYSTEM, MOBILE STATION DEVICE, BASE STATION DEVICE, COMMUNICATION METHOD, AND INTEGRATED CIRCUIT |
| CN104144510B (en) * | 2013-05-10 | 2018-08-24 | 上海诺基亚贝尔股份有限公司 | Method and apparatus for downlink transmission |
| CN108023702A (en) * | 2016-11-04 | 2018-05-11 | 维沃移动通信有限公司 | Data transmission method and device in a kind of cordless communication network |
| RU2723083C1 (en) * | 2016-11-04 | 2020-06-08 | Гуандун Оппо Мобайл Телекоммьюникейшнс Корп., Лтд. | Method of transmitting data, end device and network device |
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| EP2119058A4 (en) * | 2007-01-10 | 2012-12-12 | Nec Corp | Transmission of mbms in an ofdm communication system |
| JP2010524294A (en) * | 2007-03-28 | 2010-07-15 | テレフオンアクチーボラゲット エル エム エリクソン（パブル） | Measurement of cell-specific reference symbols in the presence of an MBMS single frequency network |
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| WO2010133122A1 (en) | 2010-11-25 |
| CN101895821A (en) | 2010-11-24 |
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