CN101094216B - Method and system for coordinating resources of multimedia broadcast / multicast services between adjacent sectors - Google Patents
Method and system for coordinating resources of multimedia broadcast / multicast services between adjacent sectors Download PDFInfo
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- CN101094216B CN101094216B CN2006100933926A CN200610093392A CN101094216B CN 101094216 B CN101094216 B CN 101094216B CN 2006100933926 A CN2006100933926 A CN 2006100933926A CN 200610093392 A CN200610093392 A CN 200610093392A CN 101094216 B CN101094216 B CN 101094216B
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Abstract
The method comprises: a) the base station covering first cell sends MBMS service resource request message to the first coordinated cooperation entity; b) the first coordinated cooperation entity sends the resource coordinated result obtained based resources status of the first cell and its adjacent second cell to the base station covering the first cell via a confirmation message; c) according to the confirmation message, the base station covering the first cell adjusts the MBMS service resource of the first cell.
Description
Technical field
The present invention relates to the multi-transceiver technology field, particularly a kind of method and system thereof of coordinating neighbor cell multimedia broadcast/group broadcast service resource.
Background technology
Since the nineties in 20th century, multi-transceiver technology becomes the hot spot technology of broadband wireless communications, and its basic thought is that a bandwidth carrier is divided into a plurality of subcarriers, and transmits data simultaneously on a plurality of subcarriers.In the middle of the system applies of majority, the width of subcarrier is less than the coherence bandwidth of channel, like this on frequency-selective channel, decline on each subcarrier is a flat fading, thereby reduced intersymbol interference, and do not needed complicated channel equalization, be fit to the transmission of high-speed data.
OFDM (Orthogonal Frequency Division Multiplexing, OFDM) technology is more representational a kind of technology in the middle of the multi-transceiver technology, it is divided into many orthogonal sub-channels with given channel in frequency domain, and allow subcarrier spectrum to overlap, as long as satisfy between subcarrier mutually orthogonally, then can isolate data-signal from the subcarrier of aliasing.A basic OFDM modulation and demodulation process as shown in Figure 1, with reference to Fig. 1, in the middle of ofdm system, user data has at first passed through chnnel coding and interleaving treatment, and adopt certain modulator approach, form symbol as two-phase PSK (BPSK), quarternary phase-shift keying (QPSK) (QPSK), quadrature amplitude modulation (qam) etc., through being modulated on the radio frequency after the OFDM operation.In the middle of the OFDM operation, when sending data, at first symbol is carried out the serial conversion, form the sub data flow of a plurality of low speed, then each data flow is mapped to a subcarrier respectively by inverse discrete fourier transform (IDFT) or inverse fast fourier transform (IFFT),, add Cyclic Prefix (CP) simultaneously at interval, and walk abreast/serial conversion as protection; The process that receives data is opposite with the transmission data, at first remove Cyclic Prefix and carry out the serial conversion, by discrete Fourier transform (DFT) or fast Fourier transform (FFT) each subcarrier is mapped to data flow respectively then, walks abreast again/serial conversion.The OFDM technology significantly reduces even has eliminated intersymbol interference, and has guaranteed the orthogonality of each interchannel, thereby has significantly reduced interchannel interference.
In addition, in order effectively to utilize the mobile communications network resource, 3G (Third Generation) Moblie global standards tissue (3GPP) has proposed multi-medium broadcast/group broadcast service (MBMS) business of mobile communications network, thereby in mobile communications network, provide a data source to send the point-to-multipoint service of data to a plurality of users, the realization Internet resources are shared, improve utilization rate of network resource, the interface resource of especially eating dishes without rice or wine.The MBMS that 3GPP proposes can not only realize the classes of messages multicast and the broadcasting of plain text low rate, and can also realize the multicast and the broadcasting of high-speed multimedia business, in using Wideband Code Division Multiple Access (WCDMA) (WCDMA) in the version of R6, how to have described in detail by the MBMS point to multiple spot control channel (MBMSpoint-to-multipoint Control Channel, MCCH), the MBMS point is to multiple spot scheduling channel (MBMS point-to-multipoint Scheduling Channel, MSCH) and the MBMS point to multicast communication channel (MBMS point-to-multipoint Traffic Channel, MTCH) cooperatively interact and finish the transmission of MBMS data service, concrete grammar is seen 3GPP TS 25.346 related protocol standards.
What current 3G system adopted is the standard of code division multiple access (CDMA), and adjacent sub-district is to have different MBMS business, need not to eat dishes without rice or wine to merge.And when in Long Term Evolution (LTE) network of 3G network, 3G or other mobile communications network, using the OFDM technology, because the characteristics of OFDM technology itself, a plurality of MBMS business are transmitted in neighbor cell, when cell edge eats dishes without rice or wine to merge, can have the problem of interference.In order to address this problem, need in neighbor cell, use the identical business of identical resource transmission, LTE MBMS has proposed to increase functional entity coordination entity (Co-ordinating Function) in network, how cooperate with Co-ordinating Function the network equipment such as base station but (base station), thereby adjusting neighbor cell MBMS service resources makes neighbor cell use the identical identical business of resource transmission, to solve the problem of disturbing when cell edge eats dishes without rice or wine to merge, also do not provide concrete scheme.
Summary of the invention
In view of this, the present invention proposes a kind of method of coordinating neighbor cell multimedia broadcast/group broadcast service resource, make the identical identical business of resource transmission of use in neighbor cell, the interference problem that exists when eating dishes without rice or wine to merge at the neighbor cell edge to solve.Another object of the present invention is, proposes a kind of system that can be used for coordinating neighbor cell multimedia broadcast/group broadcast service resource.
To achieve these goals, the invention provides a kind of method of coordinating neighbor cell MBMS service resources, this method comprises:
A. the base station that covers first sub-district sends MBMS service resources request message by affiliated first gateway to a Co-ordinating Function of the first gateway correspondence;
B. the Co-ordinating Function resource coordination result that will obtain according to the resource situation of first sub-district and adjacent second sub-district returns to the base station that covers first sub-district by response message;
C. the MBMS service resources of first sub-district is adjusted in the base station that covers first sub-district according to response message.
In technique scheme, described second sub-district belongs to first gateway.
Described MBMS service resources request message is the request message of the new MBMS service resources in application first sub-district.Described resource coordination result is: when existing the MBMS identical with described new MBMS business professional in second sub-district, be the identical resource of this new MBMS traffic assignments; When not existing the MBMS identical professional in second sub-district, be existing MBMS business resource all inequality in this new MBMS distribution and first sub-district and second sub-district with described new MBMS business; Perhaps, described resource coordination result is: be the professional identical resource of existing other MBMS in this new MBMS traffic assignments and second sub-district, and make this new MBMS business at the power of cell edge less than the power that can produce interference; Perhaps, described resource coordination result is: discharge the resource of existing MBMS business in first sub-district, and be existing MBMS business resource all inequality in this new MBMS traffic assignments and release first sub-district, back and second sub-district.
Described MBMS service resources request message is the request message of the new MBMS service resources in application first sub-district.Further comprise in the steps A: the base station that covers second sub-district sends the request message of the new MBMS service resources in application second sub-district to a Co-ordinating Function by described first gateway.Described resource coordination result is: be first sub-district with second sub-district in the identical identical resource of new MBMS traffic assignments, and/or be first sub-district with second sub-district in the different different resources of new MBMS traffic assignments.Further comprise among the step B: a Co-ordinating Function returns to the base station that covers second sub-district with described resource coordination result by response message, and the MBMS service resources of second sub-district is adjusted in the base station of described covering second sub-district according to response message.
Described MBMS service resources request message is for discharging the request message of the first cell MBMS service resources; Described resource coordination result is for discharging described MBMS service resources.Perhaps, described MBMS service resources request message is for supspending the first cell MBMS service request message; Described resource coordination result is for reservation or discharge described MBMS service resources.
Step B further comprises: a Co-ordinating Function sends the Indication message of adjusting the MBMS service resources to the base station that covers second sub-district; The MBMS service resources of second sub-district is adjusted in the base station that covers second sub-district according to described Indication message.
In technique scheme, described second sub-district belongs to second gateway, and second gateway is corresponding to the 2nd Co-ordinating Function.
Described MBMS service resources request message is the request message of the new MBMS service resources in application first sub-district.Described resource coordination result is: discharge the resource of existing MBMS business in first sub-district, and be existing MBMS business resource all inequality in this new MBMS traffic assignments and first sub-district, release back; It perhaps is existing MBMS business resource all inequality in this new MBMS traffic assignments and first sub-district.Step B comprises that further a Co-ordinating Function sends synchronization message to the 2nd Co-ordinatingFunction, and this synchronization message is carried above-mentioned resource coordination result.
Step B further comprises: the 2nd Co-ordinating Function sends Indication message to the base station that covers second sub-district, and this Indication message indication will be adjusted into the professional identical resource with described new MBMS with the professional shared resource of the professional identical MBMS of described new MBMS in second sub-district; The MBMS service resources of second sub-district is adjusted in the base station that covers second sub-district according to this Indication message.
Described MBMS service resources request message is the request message of the new MBMS service resources in application first sub-district.Described resource coordination result is: discharge the resource of existing MBMS business in first sub-district, and be existing MBMS business resource all inequality in this new MBMS traffic assignments and first sub-district, release back; It perhaps is existing MBMS business resource all inequality in this new MBMS traffic assignments and first sub-district.Step B comprises: a Co-ordinating Function sends synchronization message to the 2nd Co-ordinatingFunction, and this synchronization message is carried above-mentioned resource coordination result; The 2nd Co-ordinating Function with among the described resource coordination result for the resource of described new MBMS traffic assignments changes in second sub-district professional shared resource with the professional identical MBMS of described new MBMS, and return the response message that carries change back resource coordination result to a Co-ordinating Function; The one Co-ordinating Function will change back resource coordination result and return to the base station that covers first sub-district by response message.
Described MBMS service resources request message is the request message of the new MBMS service resources in application first sub-district.Described resource coordination result is: discharge the resource of existing MBMS business in first sub-district, and be existing MBMS business resource all inequality in this new MBMS traffic assignments and first sub-district, release back; It perhaps is existing MBMS business resource all inequality in this new MBMS traffic assignments and first sub-district.Step B comprises: a Co-ordinating Function sends synchronization message to the 2nd Co-ordinatingFunction, and this synchronization message is carried above-mentioned resource coordination result; The 2nd Co-ordinating Function finds that described is that the resource of new MBMS traffic assignments is identical with existing other MBMS business in second sub-district, change described resource coordination result, the indication base station is adjusted at the transmitting power of this sub-district, make this new MBMS business at the power of cell edge less than the power that can produce interference, and return the response message that carries change back resource coordination result to a Co-ordinating Function; The one Co-ordinating Function will change back resource coordination result and return to the base station that covers first sub-district by response message.
Described MBMS service resources request message is for discharging the request message of the first cell MBMS service resources; Described resource coordination result is for discharging described MBMS service resources.Perhaps, described MBMS service resources request message is for supspending the first cell MBMS service request message; Described resource coordination result is for reservation or discharge described MBMS service resources.And step B comprises that further a Co-ordinating Function sends synchronization message to the 2nd Co-ordinating Function, and this synchronization message is carried above-mentioned resource coordination result.
Step B further comprises: the 2nd Co-ordinating Function sends the Indication message of adjusting the MBMS service resources to the base station that covers second sub-district; The MBMS service resources of second sub-district is adjusted in the base station that covers second sub-district according to described Indication message.
Described synchronization message comprises MBMS service identification and cell ID at least.
Described MBMS business further comprises the program band.
The bandwidth of described first sub-district and second sub-district is inconsistent, and the MBMS business of described first sub-district and second sub-district takies identical bandwidth resources.
A described Co-ordinating Function is positioned at first gateway, perhaps is separate equipment.
A described Co-ordinating Function is positioned at first gateway, perhaps is separate equipment; And/or described the 2nd Co-ordinating Function is positioned at first gateway, perhaps is separate equipment.
Described MBMS service resources comprises the resource of frequency range, superframe and the sub-frame resources of MBMS transmission business.
The present invention also provides a kind of system that can be used for coordinating neighbor cell MBMS service resources, this system comprises first base station that covers first sub-district, first gateway under first sub-district, the one Co-ordihating Function of the first gateway correspondence, cover second base station of second sub-district adjacent, second gateway under second sub-district and the 2nd Co-ordinatingFunction of the second gateway correspondence with first sub-district.Wherein, first base station sends MBMS service resources request message by first gateway to a Co-ordinating Function, the resource coordination result that the one Co-ordinating Function will obtain according to the resource situation of first sub-district and second sub-district returns to first base station by response message, and first base station is according to the MBMS service resources of adjusting first sub-district from the response message of a Co-ordinating Function.
Described first gateway and second gateway are same gateway, and a Co-ordinating Function and the 2nd Co-ordinating Function are same Co-ordinating Function.
Described first base station and second base station are same base station, and described first gateway and second gateway are same gateway, and a Co-ordinating Function and the 2nd Co-ordinating Function are same Co-ordinating Function.
A described Co-ordinating Function is further used for described resource coordination result is returned to second base station by response message; Described second base station is used for adjusting according to response message the MBMS service resources of second sub-district.
Described first gateway is different gateways with second gateway, and a Co-ordinating Function is different Co-ordinating Function with the 2nd Co-ordinating Function.
The one Co-ordinating Function is further used for sending the synchronization message of carrying the resource coordination result to the 2nd Co-ordinating Function.
Described the 2nd Co-ordinating Function is used for sending the Indication message of adjusting the second cell MBMS service resources to second base station; Second base station is used for adjusting according to described Indication message the MBMS service resources of second sub-district.
Described the 2nd Co-ordinating Function is used for returning adjusted resource coordination result to a Co-ordinating Function.
A described Co-ordinating Function is positioned at first gateway, perhaps is separate equipment; And/or described the 2nd Co-ordinating Function is positioned at second gateway, perhaps is separate equipment.
This system is arranged in the Long Term Evolution LTE network of 3G (Third Generation) Moblie 3G network or 3G.
From such scheme as can be seen, since the present invention utilize the information of carrying out between the base station that covers neighbor cell and the affiliated Co-ordinating Function alternately, thereby adjusted neighbor cell MBMS service resources, make the identical identical MBMS business of resource transmission of use in neighbor cell, thereby a plurality of MBMS business of in neighbor cell, transmitting have been solved, the interference problem that when cell edge eats dishes without rice or wine to merge, exists.And the present invention has provided multiple information interaction mode, implements very flexible.
Description of drawings
Fig. 1 is the system block diagram of ofdm system in the prior art;
Fig. 2 is the schematic flow sheet of first embodiment of the invention;
Fig. 3 is the schematic flow sheet of second embodiment of the invention;
Fig. 4 is the schematic flow sheet of third embodiment of the invention;
Fig. 5 is the schematic flow sheet of fourth embodiment of the invention;
Fig. 6 is the schematic flow sheet of fifth embodiment of the invention;
Fig. 7 is the schematic flow sheet of sixth embodiment of the invention;
Fig. 8 is the schematic flow sheet of seventh embodiment of the invention.
Embodiment
For making the purpose, technical solutions and advantages of the present invention clearer, the present invention is described in more detail by the following examples.
Illustrate that at first can be used in the embodiment of the invention coordinate the system of neighbor cell MBMS service resources, sub-district 1 is adjacent with sub-district 2 in this system, this system comprises first base station of coverage cell 1, first gateway under the sub-district 1, the one Co-ordinating Function of the first gateway correspondence, second base station of coverage cell 2, second gateway under the sub-district 2 and the 2nd Co-ordinating Function of the second gateway correspondence.
Wherein, first base station sends MBMS service resources request message by first gateway to a Co-ordinating Function, the resource coordination result that the one Co-ordinating Function will obtain according to the resource situation of sub-district 1 and sub-district 2 returns to first base station by response message, and first base station is according to the MBMS service resources of adjusting sub-district 1 from the response message of a Co-ordinating Function.The resource situation of sub-district 1 described in the embodiment of the invention and sub-district 2 can comprise the resource that the MBMS in sub-district 1 and the sub-district 2 is professional and take.
First gateway and second gateway can be same gateway, and then a Co-ordinating Function and the 2nd Co-ordinating Function are same Co-ordinating Function.If first base station and second base station are same base station, then first gateway and second gateway are same gateway, and a Co-ordinating Function and the 2nd Co-ordinating Function are same Co-ordinatingFunction.At this moment, a Co-ordinating Function can be further used for described resource coordination result is returned to second base station by response message, and second base station is used for adjusting according to response message the MBMS service resources of sub-district 2.
In addition, first gateway can be different gateways with second gateway, and then a Co-ordinatingFunction is different Co-ordinating Function with the 2nd Co-ordinating Function, and first base station is different base stations with second base station.At this moment, a Co-ordinating Function can be further used for sending the synchronization message of carrying the resource coordination result to the 2nd Co-ordinating Function.Further, the 2nd Co-ordinating Function can also be used for sending the Indication message of adjusting sub-district 2MBMS service resources to second base station, and second base station then is used for adjusting according to described Indication message the MBMS service resources of sub-district 2.In addition, the 2nd Co-ordinating Function also can be used for returning adjusted resource coordination result to a Co-ordinating Function, and then a Co-ordinating Function returns to first base station with adjusted resource coordination result by response message.
It should be noted that said system can be arranged in 3G network, perhaps in the LTE network of 3G, can also be arranged in other mobile communications network.The following examples are to be applied as example explanation enforcement of the present invention in the LTE of 3G network.
In embodiments of the present invention, the unique corresponding Co-ordinating Function of each gateway (GateWay, gateway), described Co-ordinating Function can be positioned on the corresponding gateway, also can be a self-existent equipment.In embodiments of the present invention, interacting message between base station and the Co-ordinatingFunction all is to realize by the gateway under the base station, be that the base station sends to Co-ordinating Function by gateway with message, and Co-ordinating Function sends to the base station by gateway with message, succinct in order to describe, generally do not particularly point out said process in the following embodiments, and be described as directly that the base station sends to Co-ordinating Function with message or Co-ordinatingFunction sends to the base station with message.
In embodiments of the present invention, MBMS service resources request message can be the request message of application sub-district 1 new MBMS service resources, at this moment can following coordination MBMS service resources:
1) when existing the MBMS identical professional in the sub-district 2, is the identical resource of this new MBMS traffic assignments with described new MBMS business; When not existing the MBMS identical professional in the sub-district 2, be existing MBMS business resource all inequality in this new MBMS distribution and sub-district 1 and the sub-district 2 with described new MBMS business;
2) be this new MBMS traffic assignments with sub-district 2 in the professional identical resource of existing other MBMS, and the indication base station is adjusted at the transmitting power of sub-district 1, make this new MBMS business at the power of cell edge less than the power that can produce interference;
3) discharge the resource of existing MBMS business in the sub-district 1, and be existing MBMS business resource all inequality in this new MBMS traffic assignments and release sub-district 1, back and the sub-district 2;
4) if the base station of the base station of coverage cell 1 and coverage cell 2 is when same base station and while also being the request message of sub-district 2 new MBMS service resources, be the identical identical resource of new MBMS traffic assignments in sub-district 1 and the sub-district 2, and/or be sub-district 1 with sub-district 2 in the different different resources of new MBMS traffic assignments.
MBMS service resources request message also can be for discharging the request message of sub-district 1MBMS service resources, and then the resource coordination result is for discharging described MBMS service resources.
MBMS service resources request message also can be for supspending sub-district 1MBMS service request message, and then the resource coordination result is reservation or discharges described MBMS service resources.
If sub-district 1 and sub-district 2 belong to same gateway, then Co-ordinating Function base station and Co-ordinating Function realize The above results alternately.If sub-district 1 belongs to different gateways with sub-district 2, then further between the Co-ordinating of different gateway correspondences Function, realize The above results by synchronization message.
First embodiment: mainly describe adjacent two sub-districts and apply for new MBMS service resources, and when existing same MBMS business also has different MBMS professional in the new MBMS business of two sub-districts, coordinate the example of adjacent two cell MBMS service resources according to the present invention.
Sub-district 1 is adjacent with sub-district 2, belongs to same gateway, supposes that in the present embodiment two sub-districts are covered by same base station.Will add in the sub-district 11,2,3,4}4 MBMS business, need in the sub-district 2 to add 1,2,5,6}4 MBMS business.With reference to Fig. 2, the flow process of first embodiment may further comprise the steps:
Step 101, because sub-district 1 and sub-district 2 belong to same base station, this base station sends the request message of the resource of application sub-district 1 and sub-district 2 new MBMS business by gateway to Co-ordinating Function, comprises the sign of the new MBMS business of the sign of new MBMS business of sub-district 1 and sub-district 2 in this MBMS service resources request message at least.
Step 102, Co-ordinating Function obtains the resource coordination result according to sub-district 1 and sub-district 2 new MBMS business, that is: identical MBMS business { 1 in two sub-districts, 2} takies identical resource, different MBMS business { 3,4,5 in two sub-districts, 6} should not take identical resource, and will coordinate the result sends to coverage cell 1 and sub-district 2 by response message base station.Resource herein can comprise the resource of frequency range, superframe and the sub-frame resources of MBMS transmission business.
Step 103, the base station is according to the response message Resources allocation from Co-ordinating Function.
In addition, if sub-district 1 is covered by different base stations with sub-district 2, and different base stations sends the request message of the resource of application sub-district 1 and sub-district 2 new MBMS business to Co-ordinating Function, then its flow process is similar to present embodiment, and different is that transmission and the base station that receives message are respectively the base stations corresponding to two sub-districts.
Second embodiment: mainly describe a sub-district and supspend certain MBMS when professional, coordinate the example of adjacent two cell MBMS service resources according to the present invention.
Sub-district 1 is adjacent with sub-district 2, and belongs to same gateway.In sub-district 1 and the sub-district 2 all the MBMS transmission business 1,2,3,4}, { 1} in order to save interface-free resources, need temporarily stop transmission owing to temporarily do not have user terminal (UE) to receive to the MBMS business in the sub-district 2.With reference to Fig. 3, the flow process of second embodiment may further comprise the steps:
Step 201, the base station of coverage cell 2 sends the business of supspending by gateway to Co-ordinating Function, and { request message of 1} comprises the sign of suspensory MBMS business at least in this MBMS service resources request message.
Step 202 after Co-ordinating Function receives the service resources request message, is replied the resource coordination result for keeping or discharge the response message of this resource by gateway to the base station of coverage cell 2.
Step 203, the base station of coverage cell 2 keep these resources and give MBMS business { 1}, or the MBMS transmission business { resource of 1} in the release sub-district 2 according to response message in sub-district 2.
Further, in step 202, Co-ordinating Function also bristles with anger simultaneously and shows that message gives the base station of coverage cell 1, indicate it to adjust the resource that the MBMS business takies in the sub-district 1, for example { resource that 1} takies is adjusted into different resources, and it can not disturbed by other business at cell edge with business in the sub-district 1.The base station of coverage cell 1 is according to the MBMS resource in this Indication message adjustment sub-district 1.
The 3rd embodiment: mainly describe when the new MBMS of adding is professional in the sub-district, coordinate the example of adjacent two cell MBMS service resources according to the present invention.
Sub-district 1 is adjacent with sub-district 2, and belongs to same gateway.All { 1,2,3,4} has { the 7} adding of new MBMS business this moment in the sub-district 1 in the MBMS transmission business in sub-district 1 and the sub-district 2.With reference to Fig. 4, the flow process of the 3rd embodiment may further comprise the steps:
Step 301, the base station of coverage cell 1 sends the request message of applying for new MBMS service resources by gateway to Co-ordinating Function, comprises the sign of new MBMS business in this MBMS service resources request message at least.
Step 302, Co-ordinating Function is according to whether there being the identical MBMS business with described sub-district 1 new MBMS in the sub-district 2, obtain the resource coordination result, if that is: in the sub-district 2 identical business is arranged, then sub-district 1 for new business distribute with sub-district 2 in should the identical resource of business, if no, then distribute and be different from sub-district 1 and used the identical resource of resource with sub-district 2.In the present embodiment, sub-district 2 have 1,2,3, four MBMS business of 4}, { 7} then be the MBMS business { resource that the 7} distribution is new of sub-district 1 the business of sub-district 2 request.Co-ordinating Function returns the response message that carries this resource coordination result to the base station of coverage cell 1.
Step 303, the base station of coverage cell 1 can be distributed according to response message and be different from the resource that other 4 MBMS business take and give MBMS business { 7}.Resource herein can comprise the resource of frequency range, superframe and the sub-frame resources of MBMS transmission business.
The 4th embodiment: mainly describe in the sub-district and to add the higher MBMS of priority when professional, coordinate the example of adjacent two cell MBMS service resources according to the present invention.
Sub-district 1 is adjacent with sub-district 2, and belongs to same gateway, in sub-district 1 and the sub-district 2 all the MBMS transmission business 1,2,3,4}, this moment, sub-district 1 needed professional or single ripple (unicast) business of the higher MBMS of priority of transmission suddenly.With reference to Fig. 5, the flow process of the 4th embodiment may further comprise the steps:
Step 401, the base station of coverage cell 1 is by the request message of gateway to the resource of the new MBMS business of Co-ordinating Function transmission application, and this MBMS service resources request message comprises the sign of new business at least.
Step 402, whether enough high MBMS business of transmission priority obtain the resource coordination result to Co-ordinating Function according to the resource of current residual, and return to the base station of coverage cell 1 by response message.If i.e.: the current high MBMS business of the enough transmission priorities of residual resource, then the resource that the base station assigns of indication coverage cell 1 is new in response message is given the high MBMS business of priority; If the current resource of the not enough transmission of the resource of current residual, Co-ordinating Function is according to default priority algorithm, determine to discharge earlier original certain MBMS business, give the higher MBMS business of priority this part resource allocation, and the base station of indication coverage cell 1 discharges determined MBMS business and is new MBMS Resources allocation in response message.
Step 403, MBMS business { 7} is given according to the response message Resources allocation in the base station of coverage cell 1.Resource herein can comprise the resource of frequency range, superframe and the sub-frame resources of MBMS transmission business
The 5th embodiment: when a main sub-district of describing in adjacent two sub-districts that belong to different gateways increases the MBMS business, coordinate the example of adjacent two cell MBMS service resources according to the present invention.
Sub-district 1 is adjacent with sub-district 2, and belongs to different gateways, might as well establish sub-district 1 and belong to first gateway, and first gateway is corresponding to a Co-ordinating Function, and sub-district 2 belongs to second gateway, and second gateway is corresponding to the 2nd Co-ordinating Function.Sub-district 1 transmission 1,2,3, and 4}4 MBMS business, { 1,2,3,4,5}5 is professional, and this moment, sub-district 1 increased a new MBMS business { 5} in sub-district 2 transmission.With reference to Fig. 6, the flow process of the 5th embodiment may further comprise the steps:
Step 501, the base station of coverage cell 1 is by the request message of first gateway to the resource of the new MBMS business of Co-ordinating Function transmission application, and this service resources request message comprises the sign of new business at least.
Step 502, the one Co-ordinating Function sends response message by first gateway to the base station of coverage cell 1, { 5} distributes and is different from the new resource of using resource to be designated as business in this response message, and to the 2nd Co-ordinating Function transmission synchronization message, this synchronization message is carried the resource coordination result, comprises that at least { 5} need take the MBMS resource for the sign of the sign of sub-district 1, new MBMS business and new MBMS business.
Step 503, the base station of coverage cell 1 is the professional { resource that the 5} distribution is new according to response message.
Step 504, on the other hand, the 2nd Co-ordinating Function is according to the MBMS business { resource that 5} takies that has in the synchronization message, send Indication message by second gateway to the base station of coverage cell 2, it is professional in the indicating cell 2 that { resource of 5} is dispatched, for example it is adjusted into sub-district 1 in professional { resource that 5} is identical is with the merging process of eating dishes without rice or wine that guarantees that the MBMS business can other business of interfered cell edge.
Step 505, the base station of coverage cell 2 are carried out the scheduling of resource according to this Indication message.
The 6th embodiment: when a main sub-district of describing in adjacent two sub-districts that belong to different gateways increases the MBMS business, coordinate another example of adjacent two cell MBMS service resources according to the present invention.
Sub-district 1 is adjacent with sub-district 2, and belongs to different gateways, might as well establish sub-district 1 and belong to first gateway, and first gateway is corresponding to a Co-ordinating Function, and sub-district 2 belongs to second gateway, and second gateway is corresponding to the 2nd Co-ordinating Function.Sub-district 1 transmission 1,2,3, and 4}4 MBMS business, { 1,2,3,4,5}5 is professional, and this moment, sub-district 1 increased a new MBMS business { 5} in sub-district 2 transmission.With reference to Fig. 7, the flow process of the 6th embodiment may further comprise the steps:
Step 601, the base station of coverage cell 1 is by the request message of first gateway to the resource of the new MBMS business of Co-ordinating Function transmission application, and this service resources request message comprises the sign of new business at least.
Step 602, the one Co-ordinating Function is after the resource request message of the base station that receives coverage cell 1, send synchronization message to the 2nd Co-ordinating Function, this synchronization message is carried the resource coordination result, comprises that at least { 5} need take the MBMS resource for the sign of the sign of sub-district 1, new MBMS business and new MBMS business.
Step 603, the 2nd Co-ordinating Function has had this MBMS business { transmission of 5} according to sub-district 2, { professional in the MBMS resource that 5} takies and the sub-district 2 { resource that 5} takies is identical, and amended resource coordination result is returned to a Co-ordinating Function by response message then to revise sub-district 1 business.If { 5}, then the 2nd Co-ordinating Function returns the response message of not changing or does not return response message not have the MBMS transmission business in the sub-district 2.
Step 604 after a Co-ordinating Function receives the response message of the 2nd Co-ordinating Function, sends to amended resource coordination result or former coordination result by response message the base station of coverage cell 1.
Step 605, MBMS business { 5} is given according to the response message Resources allocation in the base station of coverage cell 1.Resource herein can comprise the resource of frequency range, superframe and the sub-frame resources of MBMS transmission business.
The 7th embodiment: when a main sub-district of describing in adjacent two sub-districts that belong to different gateways stops to transmit certain MBMS business, coordinate the example of adjacent two cell MBMS service resources according to the present invention.
Sub-district 1 is adjacent with sub-district 2, and belongs to different gateways, might as well establish sub-district 1 and belong to first gateway, and first gateway is corresponding to a Co-ordinating Function, and sub-district 2 belongs to second gateway, and second gateway is corresponding to the 2nd Co-ordinating Function.Sub-district 1 transmission 1,2,3, and 4}4 MBMS business, { 1,2,3,4}4 is professional, and this moment, sub-district 1 stopped MBMS transmission business { 3} in sub-district 2 transmission.With reference to Fig. 8, the 7th embodiment may further comprise the steps:
Step 701, the base station of coverage cell 1 send to discharge the MBMS business by first gateway to a Co-ordinating Function, and { request message of the resource of 3} comprises the sign of the MBMS business that will discharge at least in this service resources request message.
Step 702, the one Co-ordinating Function is after the resource release message of the base station that receives coverage cell 1, send synchronization message to the 2nd Co-ordinating Function, this synchronization message is carried the resource coordination result, comprises that at least { 3} need discharge the MBMS resource for sign, MBMS service identification and the business of sub-district 1.
Step 703, the 2nd Co-ordinating Function can { other MBMS business be given in the shared resource allocation of 3}, and it is constant also can to keep original resource, does not become example to keep original resource here with this MBMS business.The 2nd Co-ordinating Function sends response message to a Co-ordinating Function.
Step 704, a Co-ordinating Function returns response message according to the response message from the 2nd Co-ordinatingFunction to the base station of coverage cell 1.
Step 705, the base station discharges resource according to response message.Resource herein can comprise the resource of frequency range, superframe and the sub-frame resources of MBMS transmission business.
The 8th embodiment: a main sub-district of describing in adjacent two sub-districts that belong to different gateways increases new MBMS business, and when the professional use of new MBMS neighbor cell has the MBMS service resources, coordinate the example of adjacent two cell MBMS service resources according to the present invention.
Sub-district 1 is adjacent with sub-district 2, belongs to same gateway, MBMS transmission business in the sub-district 11,2,3,4}, MBMS transmission business in the sub-district 21,2,3,4}.Owing in sub-district 1, temporarily there is not UE to receive MBMS business { 1}, can discharge so professional 1 in the sub-district shared resource, and the other MBMS business { 7} of UE request transmission there is this moment, { 7} can utilize the technology of soft-frequency reuse to the MBMS business so, the base station reports the power information of this MBMS business of transmission to Co-ordinating Function, Co-ordinating Function will obtain the power of this MBMS business according to predetermined algorithm, guarantee that neighbor cell MBMS transmission service power can not make that { { 1} does not produce mutually and disturbs for 7} and business in cell edge MBMS business owing to excessive.Also just says that the resource coordination result of present embodiment is: be the identical resource of existing other MBMS business in this new MBMS traffic assignments and second sub-district, and make this new MBMS business at the power of cell edge less than the power that can produce interference.Co-ordinating Function returns to the base station with this resource coordination result by response message, and the MBMS business { resource of 7} is adjusted according to this response message in the base station.
The 9th embodiment: mainly describe when also including the program band in the MBMS business, coordinate the example of adjacent two cell MBMS service resources according to the present invention.
If specific MBMS business further comprises the program band, then Co-ordinating Function also can be used for coordinating this specific MBMS business and transmits in the sub-district, as mobile TV (Mobile TV) business.When Mobile TV is utilizing many sub-districts (multi-cell) transmission means to transmit in the sub-district, the resource of each multiplexing each sub-district of program band, the resource that takies of the same program band that this moment, Co-ordinating Function will guarantee to transmit on the neighbor cell edge is synchronous so.Obviously, here the coordination to the MBMS service resources need comprise the wherein coordination of the shared resource of program band, and to identical among the coordination of the shared resource of program band and the front embodiment to the coordination of MBMS service resources, its specific implementation process is similar to above-mentioned other embodiment, repeats no more here.
The tenth embodiment: mainly describe adjacent two bandwidth of cell but MBMS business when taking the same band resource, coordinate the example of adjacent two cell MBMS service resources according to the present invention.
If the bandwidth of two adjacent sub-districts is inconsistent, need take under the prerequisite of identical bandwidth resources in the MBMS business so, guarantee that by Co-ordinating Function identical MBMS business is to take identical resource in two sub-districts, the specific implementation flow process is identical with the embodiment of front, repeats no more here.
The above only is preferred embodiment of the present invention, and is in order to restriction the present invention, within the spirit and principles in the present invention not all, any modification of being done, is equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (30)
1. method of coordinating neighbor cell multi-medium broadcast/group broadcast MBMS service resources is characterized in that this method comprises:
A. the base station that covers first sub-district sends MBMS service resources request message by affiliated first gateway to the first coordination entity of the first gateway correspondence;
B. the first coordination entity resource coordination result that will obtain according to the resource situation of first sub-district and adjacent second sub-district returns to the base station that covers first sub-district by response message;
C. the MBMS service resources of first sub-district is adjusted in the base station that covers first sub-district according to response message.
2. method according to claim 1 is characterized in that, described second sub-district belongs to first gateway.
3. method according to claim 2 is characterized in that, described MBMS service resources request message is the request message of the new MBMS service resources in application first sub-district;
Described resource coordination result is: when existing the MBMS identical with described new MBMS business professional in second sub-district, be the identical resource of this new MBMS traffic assignments; When not existing the MBMS identical professional in second sub-district, be existing MBMS business resource all inequality in this new MBMS distribution and first sub-district and second sub-district with described new MBMS business; Perhaps
Described resource coordination result is: be the professional identical resource of existing other MBMS in this new MBMS traffic assignments and second sub-district, and make this new MBMS business at the power of cell edge less than the power that can produce interference; Perhaps
Described resource coordination result is: discharge the resource of existing MBMS business in first sub-district, and be existing MBMS business resource all inequality in this new MBMS traffic assignments and release first sub-district, back and second sub-district.
4. method according to claim 2 is characterized in that, described MBMS service resources request message is the request message of the new MBMS service resources in application first sub-district;
Further comprise in the steps A: the base station that covers second sub-district sends the request message of the new MBMS service resources in application second sub-district to the first coordination entity by described first gateway;
Described resource coordination result is: be first sub-district with second sub-district in the identical identical resource of new MBMS traffic assignments, and/or be first sub-district with second sub-district in the different different resources of new MBMS traffic assignments;
Further comprise among the step B: the first coordination entity returns to the base station that covers second sub-district with described resource coordination result by response message, and the MBMS service resources of second sub-district is adjusted in the base station of described covering second sub-district according to response message.
5. method according to claim 2 is characterized in that, described MBMS service resources request message is for discharging the request message of the first cell MBMS service resources; Described resource coordination result is for discharging described MBMS service resources; Perhaps
Described MBMS service resources request message is for supspending the first cell MBMS service request message; Described resource coordination result is for reservation or discharge described MBMS service resources.
6. method according to claim 5 is characterized in that step B further comprises:
The first coordination entity sends the Indication message of adjusting the MBMS service resources to the base station that covers second sub-district; The MBMS service resources of second sub-district is adjusted in the base station that covers second sub-district according to described Indication message.
7. method according to claim 1 is characterized in that, described second sub-district belongs to second gateway, and second gateway is corresponding to the second coordination entity.
8. method according to claim 7 is characterized in that, described MBMS service resources request message is the request message of the new MBMS service resources in application first sub-district;
Described resource coordination result is: discharge the resource of existing MBMS business in first sub-district, and be existing MBMS business resource all inequality in this new MBMS traffic assignments and first sub-district, release back; It perhaps is existing MBMS business resource all inequality in this new MBMS traffic assignments and first sub-district;
Step B comprises that further the first coordination entity sends synchronization message to the second coordination entity, and this synchronization message is carried above-mentioned resource coordination result.
9. method according to claim 8 is characterized in that,
Step B further comprises: the second coordination entity sends Indication message to the base station that covers second sub-district, and this Indication message indication will be adjusted into the professional identical resource with described new MBMS with the professional shared resource of the professional identical MBMS of described new MBMS in second sub-district; The MBMS service resources of second sub-district is adjusted in the base station that covers second sub-district according to this Indication message.
10. method according to claim 7 is characterized in that, described MBMS service resources request message is the request message of the new MBMS service resources in application first sub-district;
Described resource coordination result is: discharge the resource of existing MBMS business in first sub-district, and be existing MBMS business resource all inequality in this new MBMS traffic assignments and first sub-district, release back; It perhaps is existing MBMS business resource all inequality in this new MBMS traffic assignments and first sub-district;
Step B comprises: the first coordination entity sends synchronization message to the second coordination entity, and this synchronization message is carried above-mentioned resource coordination result; The second coordination entity with among the described resource coordination result for the resource of described new MBMS traffic assignments changes in second sub-district professional shared resource with the professional identical MBMS of described new MBMS, and to the first coordination entity return carry change after resource coordination result's response message; The first coordination entity will be changed back resource coordination result and return to the base station that covers first sub-district by response message.
11. method according to claim 7 is characterized in that, described MBMS service resources request message is the request message of the new MBMS service resources in application first sub-district;
Described resource coordination result is: discharge the resource of existing MBMS business in first sub-district, and be existing MBMS business resource all inequality in this new MBMS traffic assignments and first sub-district, release back; It perhaps is existing MBMS business resource all inequality in this new MBMS traffic assignments and first sub-district;
Step B comprises: the first coordination entity sends synchronization message to the second coordination entity, and this synchronization message is carried above-mentioned resource coordination result; The second coordination entity finds that described is that the resource of new MBMS traffic assignments is identical with existing other MBMS business in second sub-district, change described resource coordination result, the indication base station is adjusted at the transmitting power of this sub-district, make this new MBMS business at the power of cell edge less than the power that can produce interference, and return the response message that carries change back resource coordination result to the first coordination entity; The first coordination entity will be changed back resource coordination result and return to the base station that covers first sub-district by response message.
12. method according to claim 7 is characterized in that, described MBMS service resources request message is for discharging the request message of the first cell MBMS service resources; Described resource coordination result is for discharging described MBMS service resources; Perhaps
Described MBMS service resources request message is for supspending the first cell MBMS service request message; Described resource coordination result is for reservation or discharge described MBMS service resources;
Step B comprises that further the first coordination entity sends synchronization message to the second coordination entity, and this synchronization message is carried above-mentioned resource coordination result.
13. method according to claim 12 is characterized in that, step B further comprises:
The second coordination entity sends the Indication message of adjusting the MBMS service resources to the base station that covers second sub-district; The MBMS service resources of second sub-district is adjusted in the base station that covers second sub-district according to described Indication message.
14. each described method is characterized in that according to Claim 8～13, described synchronization message comprises MBMS service identification and cell ID at least.
15., it is characterized in that described MBMS business further comprises the program band according to each described method in the claim 1～13.
16., it is characterized in that the bandwidth of described first sub-district and second sub-district is inconsistent according to each described method in the claim 1～13, the MBMS business of then described first sub-district and second sub-district takies identical bandwidth resources.
17., it is characterized in that the described first coordination entity is positioned at first gateway, perhaps is separate equipment according to each described method in the claim 1～6.
18., it is characterized in that the described first coordination entity is positioned at first gateway, perhaps is separate equipment according to each described method in the claim 7～13; And/or
The described second coordination entity is positioned at first gateway, perhaps is separate equipment.
19., it is characterized in that described MBMS service resources comprises the resource of frequency range, superframe and the sub-frame resources of MBMS transmission business according to each described method in the claim 1～13.
20. system that can be used for coordinating neighbor cell multimedia broadcast/group broadcast service resource, it is characterized in that, this system comprises first base station that covers first sub-district, first gateway under first sub-district, the first coordination entity of the first gateway correspondence covers second base station of second sub-district adjacent with first sub-district, second of second gateway that second sub-district is affiliated and the second gateway correspondence entity of coordinating, wherein
First base station sends MBMS service resources request message by first gateway to the first coordination entity, the resource coordination result that the first coordination entity will obtain according to the resource situation of first sub-district and second sub-district returns to first base station by response message, and first base station is according to the MBMS service resources of adjusting first sub-district from the response message of the first coordination entity.
21. system according to claim 20 is characterized in that, described first gateway and second gateway are same gateway, and the first coordination entity and the second coordination entity are same coordination entity.
22. system according to claim 20, it is characterized in that, described first base station and second base station are same base station, and described first gateway and second gateway are same gateway, and the first coordination entity and the second coordination entity are same coordination entity.
23. system according to claim 21 is characterized in that,
The described first coordination entity is further used for described resource coordination result is returned to second base station by response message;
Described second base station is used for adjusting according to response message the MBMS service resources of second sub-district.
24. system according to claim 22 is characterized in that,
The described first coordination entity is further used for described resource coordination result is returned to second base station by response message;
Described second base station is used for adjusting according to response message the MBMS service resources of second sub-district.
25. system according to claim 20 is characterized in that, described first gateway is different gateways with second gateway, and the first coordination entity is different coordination entities with the second coordination entity.
26. system according to claim 20 is characterized in that, the first coordination entity is further used for sending the synchronization message of carrying the resource coordination result to the second coordination entity.
27. system according to claim 25 is characterized in that,
The described second coordination entity is used for sending the Indication message of adjusting the second cell MBMS service resources to second base station;
Second base station is used for adjusting according to described Indication message the MBMS service resources of second sub-district.
28. system according to claim 25 is characterized in that,
The described second coordination entity is used for returning adjusted resource coordination result to the first coordination entity.
29., it is characterized in that the described first coordination entity is positioned at first gateway, perhaps is separate equipment according to each described system in the claim 20～28; And/or
The described second coordination entity is positioned at second gateway, perhaps is separate equipment.
30., it is characterized in that this system is arranged in the Long Term Evolution LTE network of 3G (Third Generation) Moblie 3G network or 3G according to each described system in the claim 20～27.
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| CN2006100933926A CN101094216B (en) | 2006-06-20 | 2006-06-20 | Method and system for coordinating resources of multimedia broadcast / multicast services between adjacent sectors |
| PCT/CN2007/070138 WO2008000180A1 (en) | 2006-06-20 | 2007-06-20 | Method and system for harmonizing multimedia broadcast/multicast service resource in neighbor cells |
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| CN101568152B (en) * | 2008-04-24 | 2012-02-08 | 中兴通讯股份有限公司 | Control channel design method |
| CN101291293B (en) * | 2008-06-05 | 2011-08-24 | 华为技术有限公司 | Media resource adaptation method, media gateway controller and server |
| EP2421295B1 (en) | 2009-04-17 | 2015-06-03 | Huawei Technologies Co., Ltd. | Downlink inter-cell interference coordination method and base station |
| CN108633004B (en) | 2017-03-17 | 2019-08-23 | 工业和信息化部电信研究院 | URLLC business occupies eMBB service resources and indicates channel indicating means |
| CN112640492B (en) * | 2018-10-30 | 2022-05-10 | 华为技术有限公司 | Method and device for transmitting multicast service |
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| US8144735B2 (en) * | 2004-02-10 | 2012-03-27 | Qualcomm Incorporated | Transmission of signaling information for broadcast and multicast services |
| CN1980115A (en) * | 2005-12-02 | 2007-06-13 | 北京三星通信技术研究有限公司 | Method for supporting multi-cast broadcasting business |
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