CN101262634A - Transmission method for multimedia broadcast and multicast service in TD-SCDMA system - Google Patents
Transmission method for multimedia broadcast and multicast service in TD-SCDMA system Download PDFInfo
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- CN101262634A CN101262634A CNA2007100876434A CN200710087643A CN101262634A CN 101262634 A CN101262634 A CN 101262634A CN A2007100876434 A CNA2007100876434 A CN A2007100876434A CN 200710087643 A CN200710087643 A CN 200710087643A CN 101262634 A CN101262634 A CN 101262634A
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- multimedia broadcast
- multicast service
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Abstract
The invention discloses a transmitting method of MBMS in a TD-SCDMA system, which comprises the steps of step S102 that service numbers are respectively distributed for each MBMS and area numbers corresponding to the service numbers are respectively distributed for cells in the overlay area of each MBMS; step S104 that physical resources are configured for each MBMS according to the physical resource conditions of the cells; step S106 that a wireless network controller on the overlay area distributes the same MBMS for the cells with the same area number; and step S108 that the cell distributed with MBMS processes and transmits the MBMS according to the physical resources configured in step S104. By adopting the technical proposal of the invention, MBMS service interference between the cells can be avoided and simultaneously the continuous high-quality MBMS can be provided.
Description
Technical field
The present invention relates to (the MultimediaBroadcast/Multicast Service of multimedia broadcast-multicast service in the wireless communication system, MBMS) lift-off technology, relate in particular to a kind of TD SDMA and insert (Time Division Synchronous Code DivisionMultiple Access, the TD-SCDMA) launching technique of MBMS in the system.
Background technology
MBMS is a kind of high speed one way traffic with broadcasting or the transmission of multicast form, and it can transmit high-speed multimedia data to a plurality of users simultaneously effectively in a cell range.MBMS utilizes the resource transmission multimedia broadcast signal of mobile communications network, can only increase the corresponding business function like this in existing mobile communications network, thereby avoid overlapping construction.
MBMS requires any position of user in a sub-district can both receive service signal ideally, in the TD-SCDMA wireless communication system, because the data rate of MBMS is than higher, it is more than the code channel number of P-CCPCH (Primary Common Control Physical Channel) to be used to transmit the code channel number that the S-CCPCH (Secondary Common Control Physical Channel) of MBMS takies, if time slot power is identical, then the solid size road transmitting power of the S-CCPCH of MBMS business can be littler than the solid size road transmitting power of P-CCPCH, so, be broadcast channel equally, the coverage of the S-CCPCH channel of carrying MBMS business can be little more a lot of than the coverage of P-CCPCH.
In the TD-SCDMA system, if adopt identical networking to carry out the emission of PtM (the putting multileaving) mode of MBMS, each sub-district is launched different MBMS data respectively according to traditional mobile communication system, can produce very serious co-channel interference between the sub-district, cause subscriber equipment can't correctly receive the MBMS signal.In this case, the transmitting power of increase sub-district also can't improve the quality of reception of MBMS signal.
On the other hand, in the TD-SCDMA system, if the different MBMS data of each sub-district emission, the business that will produce the minizone is switched, because the cell coverage area of mobile communication system is little more a lot of than the overlay area of general radiovision, therefore when subscriber equipment was moved, it is very frequent that the switching between the business becomes, can cause the increase of redundant signals like this, perhaps can produce the professional discontinuous and interruption that receives.
As mentioned above, at present, it is serious that the MBMS launching technique in the TD-SCDMA system exists between the sub-district co-channel interference, and the not high problem of the professional quality of reception of MBMS.
Therefore, based on foregoing, in the TD-SCDMA system, provide a kind of and can avoid minizone MBMS traffic interference, it is desirable that the launching technique of high-quality multimedia broadcast-multicast service can be provided again continuously.
Summary of the invention
Consider the problems referred to above and make the present invention that for this reason, the present invention aims to provide the launching technique that a kind of TD SDMA inserts multimedia broadcast-multicast service in (TD-SCDMA) system.
According to embodiments of the invention, provide the launching technique of multimedia broadcast-multicast service in a kind of TD-SCDMA system.
This method comprises: step S102, be respectively each multimedia broadcast-multicast service distribution service numbering, and the cell allocation that is respectively in the overlay area of each multimedia broadcast-multicast service is numbered corresponding zone number with professional; Step S104, the physical resource situation according to the sub-district is each multimedia broadcast-multicast service configures physical resource respectively; Step S106, the radio network controller in the overlay area are the identical multimedia broadcast-multicast service of cell allocation with same area numbering; And step S108, distributed the sub-district of multimedia broadcast-multicast service to handle according to the physical resource that in step S104, disposes and the emission multimedia broadcast-multicast service.
Before step S102, also comprise following processing: the overlay area of determining each multimedia broadcast-multicast service according to the demand of each multimedia broadcast-multicast service.
Wherein, after having determined the overlay area, further add up the relevant information of radio network controller, Node B and one or more sub-districts in the overlay area.Here, relevant information can be radio network controller, Node B and one or more sub-district number information separately.
In addition, before the transmitting multimedia broadcast multicast service, radio network controller and sub-district in the business numbering that will in step S102, distribute and the zone number notice overlay area.
In addition, in step S104, the physical resource of configuration comprise following one of at least: gap information, frequency point information, Code Channel information, scrambling code information, training sequence code information.Wherein, training sequence code information and scrambling code information are corresponding one by one.
And, synchronous in the radio network controller of above-mentioned overlay area corresponding to maintenance between one or more radio network controllers of the same area numbering.
In addition, step S106 specifically comprises following processing: core net is distributed to corresponding radio network controller with armed multimedia broadcast-multicast service; Corresponding radio network controller is distributed to node corresponding B with the business tine of multimedia broadcast-multicast service; And node corresponding B sends to corresponding one or more sub-district with the business tine of multimedia broadcast-multicast service.
Wherein, above-mentioned corresponding one or more sub-districts have identical zone number, and corresponding radio network controller and node corresponding B are all corresponding to this identical zone number, and identical zone number is corresponding to the business numbering of the multimedia broadcast-multicast service that distributes.
By technique scheme of the present invention, the present invention has realized following beneficial effect: avoided the MBMS traffic interference of minizone, continuous high-quality multi-media broadcasting service is provided simultaneously.
Description of drawings
Accompanying drawing described herein is used to provide further understanding of the present invention, constitutes the application's a part, and illustrative examples of the present invention and explanation thereof are used to explain the present invention, do not constitute improper qualification of the present invention.In the accompanying drawings:
Fig. 1 is the flow chart according to the launching technique of multimedia broadcast-multicast service in the TD-SCDMA system of the embodiment of the invention; And
Fig. 2 is the process chart according to the concrete application example of the method for the embodiment of the invention.
Embodiment
The launching technique of multimedia broadcast-multicast service in a kind of TD-SCDMA system is provided in an embodiment of the present invention.
To be example with the MBMS business of the PtM in the TD-SCDMA communication system (putting multileaving) pattern below, specifically describe method according to the embodiment of the invention with reference to accompanying drawing.
The relative configurations of TD-SCDMA system at first will be described.In the TD-SCDMA system, a Control Network (CN) is controlled a plurality of radio network controllers (RNC), and a RNC controls a plurality of Node B (Node B), and a Node B can comprise a plurality of sub-districts.In the present embodiment, according to the business covering demand of reality, need be the professional related cell allocation zone number of MBMS in the system, and relevant CN, RNC, Node B be corresponding with this zone number; NodeB carries out the distribution of concrete resources such as time slot, frequency, Code Channel, scrambler and midamble (training sequence) sign indicating number according to the demand of actual physical resource.
As shown in Figure 1, method according to this embodiment may further comprise the steps: step S102, be respectively each multimedia broadcast-multicast service (MBMS) distribution service numbering, and be respectively the corresponding zone number of cell allocation in the overlay area of each MBMS and above-mentioned professional numbering (that is, professional number and zone number between have corresponding relation); Step S104, the physical resource situation according to the sub-district is each MBMS configures physical resource respectively; Step S106, the radio network controller in the overlay area (RNC) is for having the identical MBMS of cell allocation of same area numbering; And step S108, distributed the sub-district of MBMS to handle according to the physical resource that in step S104, disposes and emission MBMS.
Wherein, before step S102, also comprise following processing: the overlay area of determining each MBMS according to the demand of each MBMS.
Wherein, after having determined the overlay area, further add up the relevant information of radio network controller (RNC), Node B (Node B) and one or more sub-districts in the overlay area.Here, relevant information can be RNC, Node B and one or more sub-district number information separately.
In addition, before emission MBMS, RNC and sub-district in the business numbering that need will in step S102, distribute and the zone number notice overlay area.
In addition, in step S104, the physical resource of configuration comprise following one of at least: gap information, frequency point information, Code Channel information, scrambling code information, training sequence code information.Wherein, training sequence code information and scrambling code information are corresponding one by one.
And, in this embodiment, suppose in the radio network controller of overlay area corresponding to keeping synchronously between one or more radio network controllers of the same area numbering.
In addition, step S106 specifically comprises following processing: core net (CN) is distributed to corresponding RNC with armed MBMS; Corresponding RNC distributes to node corresponding B with the business tine of MBMS; And node corresponding B sends to corresponding one or more sub-district with the business tine of MBMS.
Wherein, corresponding one or more sub-districts have identical zone number, and above-mentioned corresponding RNC and node corresponding B be all corresponding to this identical zone number, and identical zone number is corresponding to the business numbering of the MBMS that is distributed.
Promptly, said process can be understood as, when existing MBMS to be launched professional, CN is the MBMS business of distributing the corresponding service numbering corresponding to the RNC of same area numbering, RNC then distributes concrete MBMS business tine for the Node B corresponding to the same area numbering, final Node B sends this MBMS business tine into corresponding district, the processing unit of sub-district is mapped the physical resource and the armed MBMS business of configuration, guarantees to have the professional final identical base band data modulation signal that forms of MBMS of identical services numbering.
Fig. 2 is a flow chart of launching distolateral processing example according to the method for the embodiment of the invention at multimedia broadcast multi-broadcasting business MBMS.As shown in Figure 2, under the PtM pattern in the TD-SCDMA system, specifically comprise following processing according to the method for the embodiment of the invention:
In step 201, at the relative configurations in the TD-SCDMA system, establish a MBMS service coverage area and comprise n RNC, be respectively RNC
1..., RNC
n, each RNC comprises m respectively
1..., m
nIndividual sub-district Cell
M1.., Cell
Mn, afterwards, be professional numbering S of this MBMS traffic assignments
i, and be Cell
M1..., Cell
MnDistribute a service area numbering C
i, with these two numberings at S
iSend before the individual MBMS sending down service and notify C
iThe RNC in zone
1..., RNC
n, and Cell
M1.., Cell
Mn(corresponding to above-mentioned step S102);
In step 202, dispose C according to the plot planning of each TD-SCDMA network
iThe S in zone
iThe sub-district physical resource that individual MBMS business takies, these physical resources comprise identical gap information Ts
I1..., Ts
Ik, the frequency point information f that this MBMS business takies is launched in each sub-district
M1..., f
Ml, the scrambling code information Sr that takies
M1..., Sr
Mn, and the sequence information mid that takies
M1..., mid
Mn, f wherein
M1..., f
MnBetween can be different, Sr
M1..., Sr
MnEach other can be different, and mid
M1..., mid
MnWith Sr
M1..., Sr
MnDifference is corresponding (corresponding to above-mentioned step S104) one by one;
In step 203, suppose C
iRNC in the zone
1..., RNC
nBetween keep synchronously armed MBMS business datum being passed through RNC
1..., RNC
nBe assigned to each sub-district Cell
M1..., Cell
Mn(corresponding to above-mentioned step S106), each sub-district is according to the physical resource information that obtains in the step 202, i.e. Ts
I1..., Ts
Ik, f
M1..., f
Mn, Sr
M1..., Sr
MnAnd mid
M1..., mid
Mn, carry out MBMS transmit physical layer process and the emission (corresponding to above-mentioned step S108).
In sum, the present invention provides a kind of launching technique of MBMS business of PtM pattern in the TD-SCDMA mobile communication system.By means of the present invention, can form the MBMS service coverage area that comprises one or more sub-districts, can effectively utilize the application that TD-SCDMA mobile communication system resource provides PtM pattern MBMS like this.
The above is the preferred embodiments of the present invention only, is not limited to the present invention, and for a person skilled in the art, the present invention can have various changes and variation.Within the spirit and principles in the present invention all, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. the multimedia broadcast-multicast service launching technique in the TD-SCDMA system is characterized in that, comprising:
Step S102 is respectively each multimedia broadcast-multicast service distribution service numbering, and is respectively cell allocation and the described professional corresponding zone number of numbering in the overlay area of each multimedia broadcast-multicast service;
Step S104, the physical resource situation according to described sub-district is described each multimedia broadcast-multicast service configures physical resource respectively;
Step S106, the radio network controller in the described overlay area are the identical multimedia broadcast-multicast service of cell allocation with same area numbering; And
Step S108, the sub-district of having distributed described multimedia broadcast-multicast service is handled according to the described physical resource that disposes in described step S104 and is launched described multimedia broadcast-multicast service.
2. launching technique according to claim 1 is characterized in that, before described step S102, also comprises following processing:
Determine the overlay area of described each multimedia broadcast-multicast service according to the demand of described each multimedia broadcast-multicast service.
3. launching technique according to claim 2 is characterized in that, after having determined described overlay area, further adds up the relevant information of radio network controller, Node B and described one or more sub-districts in the described overlay area.
4. launching technique according to claim 3 is characterized in that, described relevant information is described radio network controller, described Node B and described one or more sub-district number information separately.
5. launching technique according to claim 1, it is characterized in that, before the described multimedia broadcast-multicast service of emission, the described professional numbering that will distribute in described step S102 and described zone number are notified radio network controller and the sub-district in the described overlay area.
6. launching technique according to claim 1 is characterized in that, in described step S104, the described physical resource of configuration comprise following one of at least: gap information, frequency point information, Code Channel information, scrambling code information, training sequence code information.
7. launching technique according to claim 6 is characterized in that, described training sequence code information is corresponding one by one with described scrambling code information.
8. launching technique according to claim 1 is characterized in that, and is synchronous corresponding to maintenance between one or more radio network controllers of the same area numbering in the radio network controller of described overlay area.
9. launching technique according to claim 1 is characterized in that, described step S106 specifically comprises following processing:
Core net is distributed to corresponding radio network controller with armed described multimedia broadcast-multicast service;
Corresponding radio network controller is distributed to node corresponding B with the business tine of described multimedia broadcast-multicast service; And
Corresponding Node B sends to corresponding one or more sub-district with the business tine of described multimedia broadcast-multicast service.
10. launching technique according to claim 9, it is characterized in that, corresponding one or more sub-district has identical zone number, and corresponding radio network controller and corresponding Node B be all corresponding to described identical zone number, and described identical zone number is corresponding to the business numbering of the described multimedia broadcast-multicast service that distributes.
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| CN200710087643A CN101262634B (en) | 2007-03-05 | 2007-03-05 | Transmission method for multimedia broadcast and multicast service in TD-SCDMA system |
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| CN200710087643A CN101262634B (en) | 2007-03-05 | 2007-03-05 | Transmission method for multimedia broadcast and multicast service in TD-SCDMA system |
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| CN101262634B CN101262634B (en) | 2012-09-05 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012003633A1 (en) * | 2010-07-07 | 2012-01-12 | 中兴通讯股份有限公司 | Method, system and radio side network element for implementing multi-user shared service |
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| KR100860581B1 (en) * | 2002-05-18 | 2008-09-26 | 엘지전자 주식회사 | Method for transmitting multicast data |
| CN100583693C (en) * | 2005-12-30 | 2010-01-20 | 华为技术有限公司 | Method and system for realizing empty port synchronous emitting data |
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| WO2012003633A1 (en) * | 2010-07-07 | 2012-01-12 | 中兴通讯股份有限公司 | Method, system and radio side network element for implementing multi-user shared service |
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Effective date of registration: 20170817 Address after: 251800 Shandong County of Yangxin province flow Li Po Wu Zhen Tu Cun, No. 107 Patentee after: Sun Jianying Address before: 518057 Nanshan District science and Technology Industrial Park, Guangdong high tech Industrial Park, ZTE building Patentee before: ZTE Corporation |
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