CN101222666B - Method, system and mobile station for supporting resource block combination between single-frequency network fields - Google Patents
Method, system and mobile station for supporting resource block combination between single-frequency network fields Download PDFInfo
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- CN101222666B CN101222666B CN2007100364722A CN200710036472A CN101222666B CN 101222666 B CN101222666 B CN 101222666B CN 2007100364722 A CN2007100364722 A CN 2007100364722A CN 200710036472 A CN200710036472 A CN 200710036472A CN 101222666 B CN101222666 B CN 101222666B
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Abstract
The invention proposes a method that a mobile station is used to combine the resource blocks among single frequency network (SFN) domains in a mobile communication system. In the mobile communication system and specific to the same multimedia broadcast multicast service (MBMS), different resource blocks are distributed among different SFN domains. The method comprises that the mobile station receives the data on different resource blocks among SFN domains specific to the same MBMS, and combination and indication message from the base station; the mobile station separates the data on the different resource blocks received; the mobile station combines the data on the different resource blocks separated according to the combination and indication message received from the base station so as to obtain the MBMS.
Description
Technical field
The present invention relates to moving communicating field, more specifically, relate to a kind of method, system and travelling carriage of supporting that in mobile communication system the Resource Block between Single Frequency Network (SFN) territory merges, can improve (the MBMS of evolution at EMBMS, MBMS represents multimedia broadcast-multicast service) professional receive diversity gain, and can not increase the cost of receiving terminal.
Background technology
3GPP (third generation partner program) has started Long Term Evolution research project (LTE) in 2005, wish with higher data throughout and better network performance, for operator and the ever-increasing demand of user provide support.
Multimedia broadcast/group broadcast service (MBMS) is the business that 3GPP Rel.6 introduces, be meant that a data source sends the point-to-multipoint service of data to a plurality of users, thereby realize network (comprising core net and Access Network) resource-sharing, with the service of the least possible resource realization to media user as much as possible, as to have same requirements.At wireless access network, MBMS is professional can to realize the classes of messages multicast and the broadcasting of plain text low rate by using the carrying of Common transport channel and public wireless, also can realize the multicast and the broadcasting of the multimedia service of higher rate, for example, and mobile TV.
Current, about every research well afoot of EMBMS (MBMS of evolution).
The SFN operation of the current EMBMS of being used for requires an EMBMS business to transmit on identical time/frequency resource block.Yet business model but is: different EMBMS business can have different business domains, thereby radio resource can be reused geographically.Owing to radio resource is very limited and for the reason of resource reuse, at different zone (can be called as the SFN territory), can give the frequency resource that the EMBMS traffic assignments is different, but in current agreement, not support the merging of different frequency resources.
Because do not support that in the prior art Resource Block merges between frequency, mis-behave of the prior art is tangible.In addition owing to be in borderline sub-district, SFN territory, its part neighbor cell not in the SFN territory, therefore for border cell UE carry out that Radio Link that RF merges is less than that those are in that SFN territory center UE carries out that RF merges link.Like this, the receptivity of the travelling carriage of border cell can't reach the receptivity of SFN territory central area UE.
Fig. 1 shows resource allocation and the schematic diagram that merges situation in the prior art.For same EMBMS business, can in different SFN territories (SFN territory A and SFN territory B), distribute different frequency resources.Sub-district with same frequency resources has constituted a SFN territory, in same SFN territory, can carry out RF (radio frequency) and merge, that is, the merging of identical time/frequency resource block is shown in Fig. 1 (a).RF shown in Fig. 1 (a) merges the support that obtains current existing standard.For the Resource Block that has different time or frequency resource between the different SFN territories, UE in the sub-district (travelling carriage) only can receive the EMBMS business datum in the sub-district in the SFN territory separately, and the problem that consider to merge, shown in Fig. 1 (b), and this problem that will solve required for the present invention just.
Summary of the invention
In order to overcome the problems referred to above of the prior art, the present invention has been proposed.The objective of the invention is to propose a kind of method, system and travelling carriage of supporting that in mobile communication system the Resource Block between Single Frequency Network (SFN) territory merges, can improve receive diversity gain, and can not increase the cost of receiving terminal at the EMBMS business.
In order to realize purpose of the present invention, according to the present invention, a kind of method that by travelling carriage the Resource Block between Single Frequency Network SFN territory is merged in mobile communication system has been proposed, in described mobile communication system, at same multimedia broadcasting and multicast MBMS business, distributed different Resource Block between different SFN territories, described method comprises: travelling carriage receives at the data on the different resource piece between the SFN territory of same MBMS business and merges indication information from the base station; Travelling carriage separates the data on the received different resource piece; And according to the merging indication information that receives from the base station, travelling carriage merges the data on the different resource piece after separating, to obtain described MBMS business.
Preferably, describedly merge into weighting and merge.
Preferably, the high specific merging is merged in described weighting.
Preferably, described merging is that result according to channel estimating carries out.
Preferably, described merging indication information is used for indicating to the travelling carriage in current SFN territory the Resource Block situation in other SFN territories that can merge.
Preferably, described different resource piece has different sub-bands of frequencies in time synchronously, and described data on the different resource piece are merged is that the data on the different resource piece are carried out merging between frequency.
Preferably, described different resource piece has identical sub-bands of frequencies and takies different time slots, and described data on the different resource piece are merged is that the data on the different resource piece are carried out merging between time slot.
Preferably, described MBMS business is the MBMS business of evolution.
In addition, according to the present invention, a kind of method of supporting that in mobile communication system the Resource Block between Single Frequency Network SFN territory merges has also been proposed, described method comprises: transmitting terminal provides MBMS business datum, and be described MBMS business datum distributes resource blocks, wherein, at same multimedia broadcasting and multicast MBMS business, between different SFN territories, distributed different Resource Block; The Resource Block that the transmitting terminal utilization is distributed sends described MBMS business datum and merges indication information to receiving terminal; And when receiving at the data on the different resource piece between the SFN territory of same MBMS business, receiving terminal separates the data on the received different resource piece, and according to the merging indication information that receives from transmitting terminal, data on the different resource piece after separating are merged, to obtain described MBMS business.
In addition, according to the present invention, a kind of travelling carriage that in mobile communication system the Resource Block between Single Frequency Network SFN territory is merged has also been proposed, in described mobile communication system, at same multimedia broadcasting and multicast MBMS business, distributed different Resource Block between different SFN territories, described travelling carriage comprises: receiving system receives at data on the different resource piece between the SFN territory of same MBMS business and merging indication information from the base station; Separator separates the data on the received different resource piece; And the merging device, according to the merging indication information that receives from the base station, the data on the different resource piece after being separated by separator are merged, to obtain described MBMS business.
In addition, according to the present invention, also proposed a kind of system that supports that in mobile communication system the Resource Block between Single Frequency Network SFN territory merges, described system comprises transmitting terminal and receiving terminal.Described transmitting terminal comprises: professional generator is used to provide the MBMS business datum; Resource allocation device is described MBMS business datum distributes resource blocks, wherein at same multimedia broadcasting and multicast MBMS business, has distributed different Resource Block between different SFN territories; Professional dispensing device utilizes the Resource Block that is distributed, and sends described MBMS business datum to receiving terminal; And the merging control device, send the merging indication information to receiving terminal.Described receiving terminal comprises: merge processing unit, when receiving at the data on the different resource piece between the SFN territory of same MBMS business, separate the data on the received different resource piece, and according to the merging indication information that receives from transmitting terminal, data on the different resource piece after separating are merged, to obtain described MBMS business.
Description of drawings
Below in conjunction with the detailed description of preferred embodiment of accompanying drawing to being adopted, above-mentioned purpose of the present invention, advantage and feature will become apparent by reference, wherein:
Fig. 1 shows resource allocation and the schematic diagram that merges scene in the prior art;
Fig. 2 shows the schematic diagram of the scene that merges between frequency according to different resource piece of the present invention;
Fig. 3 shows the scene at Fig. 2, and travelling carriage carries out the flow chart that merges between frequency to the different resource piece between the SFN territory;
Fig. 4 shows the base station sends schematic diagram from merging indication information as shown in Figure 3 to travelling carriage;
Fig. 5 shows the scene at Fig. 2, the different resource piece between the SFN territory is carried out the block diagram of the travelling carriage that merges between frequency;
Fig. 6 shows the block diagram of the system that merges between the frequency of supporting the Resource Block between the SFN territory;
Fig. 7 shows the schematic diagram of the scene that merges between time slot according to different resource piece of the present invention; And
Fig. 8 shows the performance curve chart relatively of the method according to this invention and conventional method.
Embodiment
The preferred embodiments of the present invention are described below with reference to the accompanying drawings.
Fig. 2 shows the schematic diagram of the scene that merges between frequency according to different resource piece of the present invention.
In scene shown in Figure 2, at same EMBMS business, (SFN territory A and SFN territory B) distributed different frequency resources in different SFN territories.For example, in the A of SFN territory, distribute frequency resource f1 and in the B of SFN territory, distributed frequency resource f2.According to the present invention, at receiving terminal,, can carry out merging between frequency at the resource f1 of different frequency separately in different SFN territories and the same EMBMS business of the last carrying of f2, merge the merging that is meant between subband (that is OFDM subband) frequency between this frequency.
In scene shown in Figure 2, different frequency (f1 and the f2) Resource Block that carries same EMBMS business is strict synchronism in time.Just, these different Resource Block have different sub-bands of frequencies in time synchronously.Thus, can carry out merging between the different sub-band frequency according to the present invention.
Fig. 3 shows the scene at Fig. 2, and travelling carriage carries out the flow chart that merges between frequency to the different resource piece between the SFN territory.As mentioned above, in scene shown in Figure 2,, between different SFN territories, distributed different frequency resource (f1 and f2) at same MBMS business.
As shown in Figure 3, travelling carriage receives from the base station at the EMBMS business datum on the different frequency Resource Block between the SFN territory of same MBMS business, that is, by the business datum of the SFN territory A of sub-bands of frequencies f1 carrying with by the business datum of the SFN territory B of sub-bands of frequencies f2 carrying.And travelling carriage also receives from the base station and merges indication information.Then, separate by the business datum of the SFN territory A of sub-bands of frequencies f1 carrying with by the business datum of the SFN territory B of sub-bands of frequencies f2 carrying by FFT methods such as (fast fourier transform).At last, travelling carriage merges the data on the different frequency Resource Block after separating, to obtain described MBMS business according to merging indication information (will be described in greater detail after a while).Usually, this merging can be adopted the mode that weighting merges.Preferably, the method for using high specific to merge is carried out above-mentioned merging.
Fig. 4 shows the base station sends schematic diagram from merging indication information as shown in Figure 3 to travelling carriage.
As shown in Figure 4, the merging indication information that merges institute's foundation among Fig. 3 sends to travelling carriage by the base station.In the scene of Fig. 2, this merging indication information is used for the sub-bands of frequencies situation to other SFN territories that the current mobile station indication can merge.For example, if travelling carriage is positioned at SFN territory A (having sub-bands of frequencies f1), then this travelling carriage will receive the sub-bands of frequencies at same EMBMS business (f2) situation of another SFN territory B.
After separating by the business datum of the SFN territory A of sub-bands of frequencies f1 carrying and the business datum by the SFN territory B of sub-bands of frequencies f2 carrying, travelling carriage determines that according to this mergings indication information which sub-bands of frequencies needs merges and the weighting of difference merging branch.
Fig. 5 shows the scene at Fig. 2, the different resource piece between the SFN territory is carried out the block diagram of the travelling carriage that merges between frequency.
As shown in Figure 5, this travelling carriage can comprise: receiving system 501, receive at the EMBMS business datum on the different frequency Resource Block between the SFN territory of same MBMS business from the base station, promptly, by the business datum of the SFN territory A of sub-bands of frequencies f1 carrying with by the business datum of the SFN territory B of sub-bands of frequencies f2 carrying, and be used for receiving and merge indication information from the base station; Separator 502 separates by the business datum of the SFN territory A of sub-bands of frequencies f1 carrying with by the business datum of the SFN territory B of sub-bands of frequencies f2 carrying; And merge device 503, according to the merging indication information that receives, the data on the different frequency Resource Block after separating are merged, to obtain described MBMS business.In addition, this travelling carriage can also comprise channel estimating apparatus 504, and being used for provides channel estimation results to merging device 503, and described channel estimation results is used for determining the weighting of merging.
Fig. 6 shows the block diagram of the system that merges between the frequency of supporting the different resource piece between the SFN territory.
As shown in Figure 6, this system comprises transmitting terminal and receiving terminal (separated up and down by the line of the single-point among Fig. 6, top is transmitting terminal, and the bottom is a receiving terminal).
This transmitting terminal comprises: professional generator 601 is used to provide the MBMS business datum; Resource allocation device 602 is described MBMS business datum distributes resource blocks, wherein at same multimedia broadcasting and multicast MBMS business, has distributed different sub-bands of frequencies between different SFN territories; Professional dispensing device 603 utilizes the different resource piece that is distributed, and sends described MBMS business datum to receiving terminal; And merge control device 604, send aforesaid merging indication information to receiving terminal.
This receiving terminal comprises merging processing unit 605.When receiving at the data on the different frequency Resource Block between the SFN territory of same MBMS business, separate the data on the received different frequency Resource Block, and according to the merging indication information that receives from transmitting terminal, data on the different frequency Resource Block after separating are merged, to obtain described MBMS business.
It is pointed out that travelling carriage shown in Figure 5 can be one of specific implementation of receiving terminal shown in Figure 6.In addition, included professional generator 601, resource allocation device 602, professional dispensing device 603 and the merging control device 604 of transmitting terminal can be distributed in each different network elements of mobile communication system network side, for example, and base station and IAD etc.
Below with reference to shown in Figure 2 at same multimedia broadcasting and multicast MBMS business, between different SFN territories, distributed different sub-bands of frequencies scene description the present invention.But significantly, the present invention is not limited thereto.The present invention also can be applicable at same multimedia broadcasting and multicast MBMS business, the scene of having distributed the Resource Block of different time slots between different SFN territories, as shown in Figure 7.
Fig. 7 shows the schematic diagram of the scene that merges between time slot according to Resource Block of the present invention.In scene shown in Figure 7,, between different SFN territories (SFN territory A and SFN territory B), distributed same frequency and distributed different time slots at same EMBMS business.According to the present invention,,, can carry out merging between time slot at the same EMBMS business that Resource Block carried of the different time-gap t1 and the t2 in different SFN territories at receiving terminal.Merge similarly between its principle and frequency, do not repeat them here.
Fig. 8 shows the performance curve chart relatively of the method according to this invention and conventional method.Particularly, Fig. 8 shows the scene of the prior art shown in Fig. 1 (a) and the system link level performance chart between the scene shown in Figure 2, and this curve chart obtains by the system emulation instrument.
Performance according to Fig. 8 relatively can draw, and compares with the prior art scene shown in Fig. 1 (a), and the present invention can obtain the raising of the diversity gain of 0.7 ~ 0.8dB.
In addition, it is pointed out that the method for the present invention that adopts, because the signal from different SFN territory can solve simultaneously, need not receive earlier and wait another road signal again, therefore by one road signal, do not need extra reception buffer at the travelling carriage place, thereby can not increase the cost of receiving terminal.
Although below show the present invention in conjunction with the preferred embodiments of the present invention, one skilled in the art will appreciate that under the situation that does not break away from the spirit and scope of the present invention, can carry out various modifications, replacement and change to the present invention.Therefore, the present invention should not limited by the foregoing description, and should be limited by claims and equivalent thereof.
Claims (18)
1. method that in mobile communication system, the Resource Block between Single Frequency Network SFN territory is merged by travelling carriage, in described mobile communication system, at same multimedia broadcasting and multicast MBMS business, between different SFN territories, distributed different Resource Block, described method comprises:
Travelling carriage receives at the data on the different resource piece between the SFN territory of same MBMS business and merges indication information from the base station;
Travelling carriage separates the data on the received different resource piece; And
According to the merging indication information that receives from the base station, travelling carriage merges the data on the different resource piece after separating, to obtain described MBMS business.
2. method according to claim 1 is characterized in that the described weighting merging of merging into.
3. method according to claim 2 is characterized in that described weighting merges into high specific and merge.
4. method according to claim 1 is characterized in that described merging is that result according to channel estimating carries out.
5. method according to claim 1 is characterized in that described merging indication information is used for indicating to the travelling carriage in current SFN territory the Resource Block situation in other SFN territories that can merge.
6. method according to claim 1 it is characterized in that described different resource piece has different sub-bands of frequencies in time synchronously, and described data on the different resource piece are merged is that the data on the different resource piece are carried out merging between frequency.
7. method according to claim 1, it is characterized in that described different resource piece has identical sub-bands of frequencies and takies different time slots, and described data on the different resource piece are merged is that the data on the different resource piece are carried out merging between time slot.
8. method according to claim 1 is characterized in that described MBMS business is the MBMS business of evolution.
9. method of supporting that in mobile communication system the Resource Block between Single Frequency Network SFN territory merges, described method comprises:
Transmitting terminal provides MBMS business datum, and is described MBMS business datum distributes resource blocks, wherein, at same multimedia broadcasting and multicast MBMS business, has distributed different Resource Block between different SFN territories;
The Resource Block that the transmitting terminal utilization is distributed sends described MBMS business datum and merges indication information to receiving terminal; And
When receiving at the data on the different resource piece between the SFN territory of same MBMS business, receiving terminal separates the data on the received different resource piece, and according to the merging indication information that receives from transmitting terminal, data on the different resource piece after separating are merged, to obtain described MBMS business.
10. travelling carriage that in mobile communication system, the Resource Block between Single Frequency Network SFN territory is merged, in described mobile communication system, at same multimedia broadcasting and multicast MBMS business, between different SFN territories, distributed different Resource Block, described travelling carriage comprises:
Receiving system receives at data on the different resource piece between the SFN territory of same MBMS business and merging indication information from the base station;
Separator separates the data on the received different resource piece; And
Merge device,, the data on the different resource piece after being separated by separator are merged, to obtain described MBMS business according to the merging indication information that receives from the base station.
11. travelling carriage according to claim 10 is characterized in that the described weighting merging of merging into.
12. travelling carriage according to claim 11 is characterized in that described weighting merges into high specific and merge.
13. travelling carriage according to claim 10 is characterized in that also comprising: channel estimating apparatus is used for providing channel estimation results to merging device.
14. travelling carriage according to claim 10 is characterized in that described merging indication information is used for indicating to the travelling carriage in current SFN territory the Resource Block situation in other SFN territories that can merge.
15. travelling carriage according to claim 10 it is characterized in that described different resource piece has different sub-bands of frequencies in time synchronously, and described merging device carries out merging between frequency to the data on the different resource piece.
16. travelling carriage according to claim 10 it is characterized in that described different resource piece has identical sub-bands of frequencies and takies different time slots, and described merging device carries out merging between time slot to the data on the different resource piece.
17. travelling carriage according to claim 10 is characterized in that described MBMS business is the MBMS business of evolution.
18. a system that supports that in mobile communication system the Resource Block between Single Frequency Network SFN territory merges, described system comprises transmitting terminal and receiving terminal,
Described transmitting terminal comprises:
Professional generator is used to provide the MBMS business datum;
Resource allocation device is described MBMS business datum distributes resource blocks, wherein at same multimedia broadcasting and multicast MBMS business, has distributed different Resource Block between different SFN territories;
Professional dispensing device utilizes the Resource Block that is distributed, and sends described MBMS business datum to receiving terminal; And
Merge control device, send the merging indication information to receiving terminal,
Described receiving terminal comprises:
Merge processing unit, when receiving at the data on the different resource piece between the SFN territory of same MBMS business, separate the data on the received different resource piece, and according to the merging indication information that receives from transmitting terminal, data on the different resource piece after separating are merged, to obtain described MBMS business.
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| CN103260133B (en) * | 2008-08-11 | 2016-12-07 | 华为技术有限公司 | Mark transmission, acquisition methods and evolution base station, terminal and communication system |
| CN103379649B (en) * | 2012-04-12 | 2016-12-07 | 中兴通讯股份有限公司 | Data merge method and device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1666454A (en) * | 2002-05-06 | 2005-09-07 | 高通股份有限公司 | Multimedia Broadcast Multicast Service (MBMS) in Wireless Communication System |
| CN1893632A (en) * | 2005-04-19 | 2007-01-10 | 三星电子株式会社 | Apparatus and method for offering broadcast service in a dmb system having single frequency network and system |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1666454A (en) * | 2002-05-06 | 2005-09-07 | 高通股份有限公司 | Multimedia Broadcast Multicast Service (MBMS) in Wireless Communication System |
| CN1893632A (en) * | 2005-04-19 | 2007-01-10 | 三星电子株式会社 | Apparatus and method for offering broadcast service in a dmb system having single frequency network and system |
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