CN101064904B - Method for transmitting broadcasting multicasting service and system thereof - Google Patents
Method for transmitting broadcasting multicasting service and system thereof Download PDFInfo
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- CN101064904B CN101064904B CN2006100781196A CN200610078119A CN101064904B CN 101064904 B CN101064904 B CN 101064904B CN 2006100781196 A CN2006100781196 A CN 2006100781196A CN 200610078119 A CN200610078119 A CN 200610078119A CN 101064904 B CN101064904 B CN 101064904B
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Abstract
The invention discloses a transmission method for broadcast multicast service that includes it determines the occupied frequency source of broadcast multicast section transmitting the service data of broadcast multicast service based on several sections transmission mode in the honeycomb section with frequency reusing; chooses the corresponding frequency source which has the same frequency of determined frequency source in the broadcast section adjacent with multicast sections; said single-cast section based on the chosen frequency source and the broadcast multi-cast section based on the determined frequency source transmit the broadcast multicast service synchronously. The invention also discloses transmission system of broadcast multicast service. The invention can improves the receiving property in the transition zone between the single-cast sections and the broadcast multi-cast sections.
Description
Technical field
The present invention relates to channeling technology and broadcast group broadcast technology in the mobile communications network, especially relate to a kind of transmission method and system thereof of broadcasting multicast service.
Background technology
In order effectively to utilize limited frequency spectrum resources, present mobile communication technology proposes the recycling in the enterprising line frequency resource of the diverse geographic location of cellular network.As shown in Figure 1; For carry out the multiplexing view of channeling in the mobile communications network between the different cellular cells based on multiplexing factor 1; It for the multiplexing factor 1 cellular mobile communication networks; All adopt identical frequency resource between each sub-district, and the user who is in cell edge can receive the interference from user in other adjacent cell, the signal interference ratio that therefore is in its acquisition of user of cell edge can be more weaker.
In order to solve based on the multiplexing factor is 1 when carrying out channeling; The problem that the Cell Edge User signal interference ratio is relatively poor; The way that can adopt is the multiplexing factor numerical value when increasing the channeling processing; As shown in Figure 2, for carry out the multiplexing view of channeling in the mobile communications network between the different cellular cells based on the multiplexing factor 3, for the cellular cell of rule; Carry out the channeling processing based on the multiplexing factor 3 between the adjacent sub-district of different honeycombs and can guarantee that the frequency of using between any two neighbor cells is all different, can only use 1/3 original frequency resource but its drawback is each sub-district.
Big more in order to solve the multiplexing factor, the problem that the cell frequency utilance is low more, industry have been introduced the notion of interference coordination.The interference coordination technique that wherein is applied between different districts is generally managed to downlink resource; Usually between the sub-district, increase constraints (as to the structure of conventional channel and the processing such as scheduling of non-conventional channel) with coordination mode; These constraintss that increased normally limit the available time domain and/or the frequency domain resource of explorer, or the through-put power on certain time-domain and frequency-domain resource is limited.
At present; Soft-frequency reuse (SFR, Soft Frequency Reuse) is exactly the application allusion quotation example of interference coordination technique, and is as shown in Figure 3; For carry out the multiplexing view of channeling in the mobile communications network between the different cellular cells based on the SFR mode; As shown in Figure 3 for disturbing more serious cell edge area to adopt the multiplexing factor respectively greater than 1 frequency multiplexing mode, simultaneously because less, be 1 frequency multiplexing mode so adopt the multiplexing factor in each sub-district internal interference.Here being that example is explained to adopt the multiplexing factor 3 specifically, is that 3 pairs of whole usable frequencies are divided according to the multiplexing factor at first, makes each sub-district obtain self dominant frequency separately (dominant frequency specifically sees also the texture part among Fig. 3) of area use on the edge of; For each sub-district, the frequency except that dominant frequency is as secondary (secondary frequency specifically sees also the dash area among Fig. 3) frequently of each sub-district.Visible from figure, as corresponding secondary frequency, other in like manner in sub-district 2 for the dominant frequency in the sub-district 1; In each sub-district, need the available horsepower on the pair frequency be limited usually, even the available horsepower on the secondary frequency is lower than the available horsepower on the dominant frequency.
At present, the multimedia broadcast-multicast service (MBMS, MultimediaBroadcast Multicast Service) that is proposed by the 3GPP standard is supported two kinds of cell transmission modes:
A kind of is many cell transmission (Multi-cell transmission) modes, refers to the professional mode of a plurality of sub-districts same frequency sending simultaneously MBMS;
Another kind is single cell transmission (Single-cell transmission) mode, and it is professional and do not consider that other sub-districts send the mode of situation to refer to that single subdistrict sends MBMS.
When adopting many cell transmission mode MBMS transmission professional, each broadcast multi-broadcasting sub-district of participating in transmission takies special-purpose frequency resource and is used for the MBMS transmission business, and the frequency resource that is taken by the MBMS business can not be used further to other traffic transmission.Each broadcast multi-broadcasting sub-district directly takies the part dominant frequency and the secondary MBMS transmission business that frequently is used for of self under the SFR multiplex mode; The frequency resource that is taken by the MBMS business can not be used further to the unicast service of respective cell; That is to say that each broadcast multi-broadcasting sub-district can not be again be made of this part frequency resource secondaryly uses frequently, and the respective cell of doing dominant frequency to this part frequency originally simultaneously can not be done dominant frequency to this part frequency resource again and use.Specifically as shown in Figure 4; For carrying out channeling based on the SFR mode between the different cellular cells in the mobile communications network; And between the different cellular cells based on many cell transmission mode MBMS transmission the frequency seizure condition sketch map when professional; As shown in the figure, when a part of frequency resource in the whole frequency is used for the MBMS transmission business, the frequency range part that is occupied by the MBMS business in the neighbor cell can not have been served for the user of cell edge again; The neighbor cell that promptly has will lose the dominant frequency part of self, will lose the dominant frequency part of self like sub-district 2,4 and 6.
When the area group of forming based on each professional broadcast multi-broadcasting sub-district of many cell transmission mode MBMS transmission is adjacent with the clean culture sub-district; When if the unicast data of high power transmission correspondence on the professional frequency of MBMS is sent in the broadcast multi-broadcasting sub-district in the clean culture sub-district, will certainly receive the interference of unicast data traffic when the user in the transition location receives the MBMS business of sending the broadcast multi-broadcasting sub-district between broadcast multi-broadcasting sub-district and clean culture sub-district so.As shown in Figure 5, be the view of broadcast multi-broadcasting sub-district when adjacent with the clean culture sub-district, wherein the sub-district 1,2; 5,6,7 are respectively the broadcast multi-broadcasting sub-district; Sub-district 3,4 is respectively the clean culture sub-district, and the professional receptivity of user C reception MBMS that is positioned at zone of transition so will certainly be poorer than user A and B.
High power transmission corresponding unicast data in area receives the MBMS business to user in the zone of transition adjacent with the broadcast multi-broadcasting sub-district and causes interference on the edge of for fear of the clean culture sub-district; The prior art scheme proposes dominant frequency transmitting power with the clean culture sub-district and makes into to take place frequently with pair and penetrate power identical (the right as shown in Figure 5 blank parts frequency range is former to be the dominant frequency of corresponding clean culture sub-district; Its transmitting power changed into pair take place frequently that to penetrate power identical); It is clean culture sub-district 3; 4 transmitting powers that adopt on the dominant frequency in area on the edge of are identical with the secondary transmitting power that adopts on frequently in the central area, cause interference thereby avoid that user in the zone of transition adjacent with the broadcast multi-broadcasting sub-district is received the MBMS business.
Adopt above-mentioned processing mode; Cause interference although can avoid clean culture sub-district high power transmission unicast data that user in the zone of transition adjacent with the broadcast multi-broadcasting sub-district is received the MBMS business; If but the bandwidth ratio broad that the MBMS business takies; Might cause some clean culture sub-district in the frequency range that the MBMS business takies, not have dominant frequency to take; Thereby can make that the throughput in these clean culture cell edge areas is lower than other clean culture sub-districts, as in Fig. 5, clean culture sub-district 4 impacts user C reception MBMS business for reducing; It is identical with the transmitting power of secondary frequency to need transmitting power with self whole dominant frequency to change to, and the throughput of its edge zone will certainly be less than the throughput of 3 edge zones, clean culture sub-district for clean culture sub-district 4 like this.For addressing this problem, can adopt interframe frequency hopping mode to alleviate, even the professional frequency of MBMS transmission takies the dominant frequency of different clean cultures sub-district, thereby it is identical or close to make that the MBMS business takies the probability of different clean cultures sub-district dominant frequency.
To sum up visible; When carrying out channeling based on the SFR mode between the different cellular cells; Change to through the dominant frequency transmitting power with clean culture cell edge area and to take place frequently with the pair of central area that to penetrate power identical, can reduce user in the zone of transition adjacent with the broadcast multi-broadcasting sub-district is received the MBMS business cause interference, the user does not receive the professional received power of MBMS in the zone of transition but this processing mode can not improve; As shown in Figure 5; Because it is professional that user A and B can receive the MBMS that sends adjacent a plurality of sub-districts simultaneously, therefore has higher received power, and user C can only receive the MBMS business of sending sub-district 1; The MBMS that does not but receive other neighbor cells transmissions is professional, so its power that receives the MBMS business is lower than the power of user A and B reception MBMS business.
Summary of the invention
The present invention proposes a kind of transmission method and system thereof of broadcasting multicast service, receives the lower problem of broadcasting multicast service power with user in clean culture sub-district and the broadcast multi-broadcasting minizone zone of transition in the solution prior art.
For addressing the above problem, the technical scheme that the present invention proposes is following:
A kind of transmission method of broadcasting multicast service comprises step:
In the cellular cell that adopts channeling, confirm the shared frequency resource of broadcast multi-broadcasting cell transmission broadcast and multicast service data based on many cell transmission mode;
In the frequency range identical that the clean culture sub-district adjacent with the broadcast multi-broadcasting sub-district takies, select corresponding frequency resource with determined frequency resource;
Said clean culture sub-district based on the frequency resource of selecting and broadcast multi-broadcasting sub-district based on definite frequency resource synchronous transmission broadcast and multicast service data.
Preferably, confirm the shared frequency resource of said broadcast multi-broadcasting cell transmission broadcast and multicast service data by high level; And
The frequency resource information of confirming is notified to said broadcast multi-broadcasting sub-district.
Preferably, the process of said selection respective frequencies resource specifically comprises:
High level obtains the frequency allocation information of clean culture sub-district under the channeling state; And
Select corresponding frequency resource in the frequency range identical that takies in the clean culture sub-district according to the frequency allocation information of clean culture sub-district with determined frequency resource;
High-rise frequency resource information with selection is notified to the clean culture sub-district.
Preferably, the process of said selection respective frequencies resource specifically also comprises:
The frequency resource that dynamic adjustment has been selected in the high-rise frequency range identical with determined frequency resource that takies in the clean culture sub-district; And
Adjusted frequency resource information is notified to the clean culture sub-district.
Preferably, the process of said selection respective frequencies resource specifically comprises:
High level notifies the shared frequency resource information of confirming of broadcast multi-broadcasting cell transmission broadcast and multicast service data to the clean culture sub-district;
Corresponding frequency resource is selected according to from the frequency allocation information under the channeling state in said clean culture sub-district in the frequency range identical with determined frequency resource that takies at self.
Preferably, the process of said selection respective frequencies resource specifically also comprises:
The frequency resource that dynamic adjustment has been selected in the frequency range identical with determined frequency resource that the clean culture sub-district takies at self.
Preferably, said channeling is the channeling based on interference coordination.
Preferably, be chosen as the frequency resource of clean culture cell edge region user service; And/or be chosen as the frequency resource of clean culture center of housing estate zone user service.
Preferably, said clean culture cell transmission broadcast and multicast service data is limited by the through-put power control under the interference coordination channeling state.
Preferably, said channeling is the soft-frequency reuse based on interference coordination.
Preferably, selection is as the frequency resource of clean culture sub-district dominant frequency; And/or select as the secondary frequency resource frequently in clean culture sub-district.
Preferably, said clean culture cell transmission broadcast and multicast service data is limited by the through-put power control under the soft-frequency reuse state.
A kind of transmission system of broadcasting multicast service comprises:
Frequency is confirmed the unit, is used for confirming the shared frequency resource of broadcast multi-broadcasting cell transmission broadcast and multicast service data based on many cell transmission mode at the cellular cell that adopts channeling;
The frequency selected cell, what be used for taking in the clean culture sub-district adjacent with the broadcast multi-broadcasting sub-district confirms the corresponding frequency resource of frequency range selection that the determined frequency resource in unit is identical with frequency;
The business data transmission unit, the frequency resource synchronous transmission broadcast and multicast service data that the unit is confirmed is confirmed based on frequency in the frequency resource and the broadcast multi-broadcasting sub-district that are used for selecting based on the frequency selected cell clean culture sub-district.
Preferably, said frequency selected cell specifically comprises:
Subelement is obtained in frequency allocation, is used to obtain clean culture sub-district the frequency allocation information under channeling state adjacent with the broadcast multi-broadcasting sub-district;
Frequency chooser unit is used for obtaining according to frequency allocation the frequency allocation information of the clean culture sub-district that subelement obtains, and what take in the clean culture sub-district confirms to select in the identical frequency range of the determined frequency resource in unit corresponding frequency resource with frequency.
Preferably, said frequency selected cell specifically also comprises selects frequency adjustment subelement, and what be used for taking in the clean culture sub-district confirms the identical frequency range of the determined frequency resource in the unit selected frequency resource in chooser unit of dynamically adjusting frequency with frequency.
Preferably, said frequency selected cell is chosen as the frequency resource of clean culture cell edge region user service; And/or be chosen as the frequency resource of clean culture center of housing estate zone user service.
Preferably, said system also comprises the first through-put power control unit, is used for based on the through-put power under the interference coordination channeling state process of business data transmission unit transmission broadcast and multicast service data in the clean culture sub-district being carried out power control.
Preferably, said frequency selected cell is selected the frequency resource as clean culture sub-district dominant frequency; And/or select as the secondary frequency resource frequently in clean culture sub-district.
Preferably, said system also comprises the second through-put power control unit, is used for based on the through-put power under the soft-frequency reuse state process of business data transmission unit transmission broadcast and multicast service data in the clean culture sub-district being carried out power control.
A kind of transmission method of broadcasting multicast service comprises step:
In the cellular cell that adopts channeling, confirm the shared frequency resource of broadcast multi-broadcasting cell transmission broadcast and multicast service data based on many cell transmission mode;
In the transmission broadcast and multicast service data, the transmission of any business datum is not carried out in the clean culture sub-district adjacent with the broadcast multi-broadcasting sub-district in the frequency range identical with determined frequency resource that takies on the frequency resource of confirming in said broadcast multi-broadcasting sub-district.
Preferably, confirm the shared frequency resource of said broadcast multi-broadcasting cell transmission broadcast and multicast service data by high level; And
The frequency resource information of confirming is notified respectively to said broadcast multi-broadcasting sub-district and adjacent clean culture sub-district.
A kind of transmission system of broadcasting multicast service comprises:
Frequency is confirmed the unit, is used for confirming the shared frequency resource of broadcast multi-broadcasting cell transmission broadcast and multicast service data based on many cell transmission mode at the cellular cell that adopts channeling;
The broadcast and multicast service data transmission unit is used for confirming the determined frequency resource transmission in unit broadcast and multicast service data in the broadcast multi-broadcasting sub-district based on frequency;
The transfer of data screen unit; Be used for the broadcast and multicast service data transmission unit in broadcast multi-broadcasting sub-district transmission broadcast and multicast service data; In the clean culture sub-district adjacent with the broadcast multi-broadcasting sub-district, shielding is confirming to carry out in the identical frequency range of the determined frequency resource in unit the transmission of any business datum with frequency.
The beneficial effect that the present invention can reach is following:
Technical scheme of the present invention is considered in the cellular cell communication environment of channeling; When the unicast service amount of clean culture sub-district is fewer; Possibly exist and be broadcasted the frequency resource that multicast cell transmission broadcasting multicast service takies and to adopt less than probability; Propose through in the clean culture sub-district adjacent with the broadcast multi-broadcasting sub-district; Use is broadcasted the frequency range that frequency resource that multicast cell transmission broadcast and multicast service data takies covers and comes and broadcast multi-broadcasting cell synchronizing transmission broadcast and multicast service data; So just can improve the user who is in the zone of transition between broadcast multi-broadcasting sub-district and the adjacent clean culture sub-district and receive the received power of broadcasting multicast service, and then improve the receptivity that user in the zone of transition receives broadcasting multicast service.
Technical scheme of the present invention considers that also the user receives the lower problem of broadcast and multicast service data power in the zone of transition between broadcast multi-broadcasting sub-district and adjacent clean culture sub-district simultaneously; Possibly be owing to excessive the causing of interference that unicast data causes user in the zone of transition sent in the clean culture sub-district; And propose in broadcast multi-broadcasting cell transmission broadcast and multicast service data; Any business datum (comprising unicast data and broadcast and multicast service data) hour can not transmitted in the unicast service amount in the clean culture sub-district in being broadcasted the frequency range that frequency resource that multi-cast business data takies covers; Thereby reduce user in the zone of transition is received the interference that broadcast and multicast service data causes; The user receives the received power of broadcast and multicast service data in the covert raising zone of transition, therefore improves the receptivity that the interior user of zone of transition receives broadcast and multicast service data.
Description of drawings
Fig. 1 is for carrying out the multiplexing view of channeling based on multiplexing factor 1 between the different cellular cells in the mobile communications network;
Fig. 2 is for carrying out the multiplexing view of channeling based on the multiplexing factor 3 between the different cellular cells in the mobile communications network;
Fig. 3 is for carrying out the multiplexing view of channeling based on the SFR mode between the different cellular cells in the mobile communications network;
Fig. 4 is for carrying out channeling based on the SFR mode between the different cellular cells in the mobile communications network, and between the different cellular cell based on many cell transmission mode MBMS transmission the frequency seizure condition sketch map when professional;
Fig. 5 is the view of broadcast multi-broadcasting sub-district when adjacent with the clean culture sub-district;
Fig. 6 is the main realization principle flow chart of broadcast multicast service transmission method of the present invention;
Fig. 7 is for accomplish the processing procedure sketch map of broadcasting multicast service transmission in the methods of the invention based on first kind of frequency resource selection mode;
Fig. 8 is for accomplish the processing procedure sketch map of broadcasting multicast service transmission in the methods of the invention based on second kind of frequency resource selection mode;
Fig. 9 is for be used for the frequency resource distribution sketch map of transferring MBMS service data with the dominant frequency resource that is taken by the MBMS business datum in the clean culture sub-district in the methods of the invention;
Figure 10 is for be used for the frequency resource distribution sketch map of transferring MBMS service data with the secondary resource frequently that is taken by the MBMS business datum in the clean culture sub-district in the methods of the invention;
Figure 11 is for be used for the frequency resource distribution sketch map of transferring MBMS service data with the dominant frequency that is taken by the MBMS business datum in the clean culture sub-district, secondary resource frequently in the methods of the invention;
Figure 12 is the modulation and demodulation system processing procedure sketch map of basic ofdm system;
Figure 13 uses the dominant frequency that is taken by the MBMS business datum for clean culture sub-district in the embodiment of the invention and comes the frequency resource distribution sketch map of transferring MBMS service data;
Figure 14 is for carrying out the concrete input data mode sketch map before IFFT handles in ofdm system according to the above embodiment of the present invention;
Figure 15 is the main composition structured flowchart of first kind of broadcasting multicast service transmission system of the present invention's proposition;
Figure 16 is the concrete composition structured flowchart of system of the present invention medium frequency selected cell;
Figure 17 is the main realization principle flow chart of the transmission method of the another kind of broadcasting multicast service of the present invention's proposition;
Figure 18 is not for carrying out the frequency resource distribution sketch map of any transfer of data on the frequency resource that in the clean culture sub-district, is taken by the MBMS business datum in the methods of the invention;
Figure 19 is the main composition structured flowchart of second kind of broadcasting multicast service transmission system of the present invention's proposition.
Embodiment
Technical scheme of the present invention is between the different cellular cells during based on channeling; Be in and adopt that the user in the zone of transition receives the professional lower problem of received power of MBMS between professional broadcast multi-broadcasting sub-district of many cell transmission mode MBMS transmission and the adjacent clean culture sub-district; Consider simultaneously when the unicast service amount is fewer in the clean culture sub-district; Possibly exist and be broadcasted the frequency resource that multicast cell transmission MBMS business takies and to adopt less than probability; Proposition can frequency resource that multicast cell transmission MBMS business takies with being broadcasted in the clean culture sub-district, that maybe not can be used by the clean culture business be used for and broadcast multi-broadcasting cell synchronizing transferring MBMS service data; Thereby promptly avoided the waste of frequency resource; Can improve again that the user receives the professional received power of MBMS in the zone of transition between broadcast multi-broadcasting sub-district and the adjacent clean culture sub-district, and then improve that the user receives the professional receptivity of MBMS in the zone of transition.
To combine each accompanying drawing to carry out detailed elaboration below to the main realization principle of technical scheme of the present invention, embodiment and to the beneficial effect that should be able to reach.
As shown in Figure 6, be the main realization principle flow chart of broadcast multicast service transmission method of the present invention, it realizes that mainly principle is following:
Step S10 in the cellular cell of channeling, confirms the shared frequency resource of broadcast multi-broadcasting cell transmission broadcast and multicast service data based on many cell transmission mode (Multi-celltransmission); Wherein can confirm the shared frequency resource of broadcast multi-broadcasting cell transmission broadcast and multicast service data, and notify broadcast multi-broadcasting sub-district to correspondence with the frequency resource information of deciding by the high level (like access gateway AG W) of network side based on Multi-cell transmission mode.
Step S20 selects corresponding frequency resource in the frequency range identical with above-mentioned definite frequency resource that takies in the clean culture sub-district adjacent with the broadcast multi-broadcasting sub-district;
Step S30, the clean culture sub-district adjacent with the broadcast multi-broadcasting sub-district based on the above-mentioned frequency resource of selecting and broadcast multi-broadcasting sub-district based on above-mentioned definite frequency resource synchronous transmission broadcast and multicast service data.
Like this based on the main realization thought of the inventive method; Under existing interference coordination technique; The clean culture sub-district adjacent with the broadcast multi-broadcasting sub-district is used to regulate all or part of frequency range that user in the zone of transition receives the broadcasting multicast service performance what it was broadcasted that multi-cast business data occupies; To continue to send broadcast and multicast service data, receive the receptivity of broadcasting multicast service with user in the raising zone of transition; Certainly these resources of frequency range that are broadcasted that multi-cast business data occupies just can not be that unicast user in the clean culture sub-district served simultaneously again in the clean culture sub-district.
Wherein in the methods of the invention, can carry out channeling based on interference coordination technique between the different cellular cells, carry out channeling processing etc. as preferably adopting the SFR mode.
Wherein in above-mentioned steps S20, select the process of corresponding frequency resource in the identical frequency range of the frequency resource that takies in the clean culture sub-district adjacent and can accomplish through two kinds of methods with confirming with the broadcast multi-broadcasting sub-district:
First kind: the high-rise frequency allocation information of clean culture sub-district under the channeling state of at first obtaining;
And select corresponding frequency resource in the frequency range identical that takies in the clean culture sub-district according to the frequency allocation information of clean culture sub-district with determined frequency resource;
High level notifies selected frequency resource information to the clean culture sub-district; The dynamic frequency resource selected of adjustment in the frequency range identical that follow-up high level can also take in the clean culture sub-district according to the concrete change information of clean culture sub-district with determined frequency resource, and adjusted frequency resource information notified to the clean culture sub-district once more.
Second kind: high level notifies the shared frequency resource information of deciding of broadcast multi-broadcasting cell transmission broadcast and multicast service data to the clean culture sub-district adjacent with the broadcast multi-broadcasting sub-district;
Corresponding frequency resource is selected according to from the frequency allocation information under the channeling state in the clean culture sub-district in the frequency range identical with determined frequency resource that takies at self; The frequency resource that dynamic adjustment has been selected in the frequency range identical with determined frequency resource that follow-up clean culture sub-district can also take at self according to the concrete change information of self at any time.
Be treated to the concrete selection course that example is explained frequency resource to adopt the SFR mode to carry out channeling between the cellular cell below.As shown in Figure 7, for accomplish the processing procedure sketch map of broadcasting multicast service transmission in the methods of the invention based on first kind of frequency resource selection mode, its concrete processing procedure is following:
1, sends instructions under high-rise (like AGW) and inform that the broadcast multi-broadcasting sub-district sends broadcast and multicast service data on which time resource and frequency resource;
2, high-rise (like AGW) issues instruction query clean culture sub-district the major-minor under SFR multiplexing state adjacent with the broadcast multi-broadcasting sub-district section assignment information and the current intensity of traffic information in clean culture sub-district again and again;
3, the current unicast service amount of clean culture sub-district statistics self; And draw corresponding business busy extent information according to statistics, the clean culture sub-district with self based on the major-minor under the multiplexing state of SFR again and again the section assignment information give high-rise (AGW) with self current intensity of traffic feedback information;
4, high-rise (AGW) is according to the major-minor frequent section assignment information and the current intensity of traffic information of clean culture sub-district feedback; Select corresponding frequency resource in the frequency range identical that takies in the clean culture sub-district with broadcast and multicast service data acquisition frequency resource, and selection and informing to the identical time resource of the time resource of broadcast multi-broadcasting sub-district; Send instructions down then and inform that the clean culture sub-district sends broadcast and multicast service data on frequency resource of selecting and time resource;
5, the synchronized transmission broadcast and multicast service data is come according to frequency resource and the time resource that high-rise (AGW) informs respectively in broadcast multi-broadcasting sub-district and clean culture sub-district.
If cause intensity of traffic information to change owing to the unicast service amount in the clean culture sub-district changes in addition; It is high-rise when the intensity of traffic information of in time learning the clean culture sub-district changes; Dynamically adjust selected frequency resource in the frequency range of also wanting to take in the clean culture sub-district accordingly identical with broadcast and multicast service data acquisition frequency resource; And with the frequency resource information of adjusted selection in time notice give the clean culture sub-district, when increasing, maybe the frequency resource of selecting be reduced like the unicast service amount in the clean culture sub-district; When the unicast service amount in the clean culture sub-district reduces for another example, maybe be with the frequency resource increase of selecting etc.
As shown in Figure 8, for accomplish the processing procedure sketch map of broadcasting multicast service transmission in the methods of the invention based on second kind of frequency resource selection mode, its concrete processing procedure is following:
10, send instructions under high-rise (like AGW) and inform that the broadcast multi-broadcasting sub-district sends broadcast and multicast service data on which time resource and frequency resource;
20, simultaneously high-rise (like AGW) also sends instructions down and informs that the clean culture Cell Broadcast CB multicast sub-district adjacent with the broadcast multi-broadcasting sub-district will send broadcast and multicast service data on which time resource and frequency resource;
Clean culture sub-district basis is from the frequent section of the major-minor under the multiplexing state of SFR assignment information; With self current unicast service amount is added up the intensity of traffic information that correspondence draws, select corresponding frequency resource in the frequency range identical that takies at self with broadcast and multicast service data acquisition frequency resource;
30, broadcast and multicast service data is sent according to frequency resource and the time resource that high-rise (AGW) informs in the broadcast multi-broadcasting sub-district, and the time resource that inform according to frequency resource of self selecting and high level (AGW) the clean culture sub-district that is adjacent simultaneously sends broadcast and multicast service data.
Accordingly; If the current intensity of traffic information of clean culture sub-district discovery self changes, dynamically adjust the frequency resource of selecting in the frequency range identical that the intensity of traffic information after also needing in time to change according to self takies at self with broadcast and multicast service data acquisition frequency resource.
Wherein more excellent in above-mentioned steps S20; If adopt frequency multiplexing mode based on interference coordination to carry out channeling when handling between the cellular cell; Be chosen as the frequency resource of clean culture cell edge region user service in the identical frequency range of the frequency resource that takies with broadcast and multicast service data that can take in the clean culture sub-district adjacent with the broadcast multi-broadcasting sub-district; Also can be chosen as the frequency resource of clean culture center of housing estate zone user service, can also be chosen as the frequency resource of clean culture cell edge region user service simultaneously and be the frequency resource of clean culture center of housing estate zone user's service.
Be example to carry out channeling based on the SFR mode between the cellular cell below, specify the various situation of selecting frequency resource in the identical frequency range of the frequency resource that occupies with broadcast and multicast service data that takies in the clean culture sub-district.Select frequency resource in the identical frequency range of the frequency resource that takies with broadcast and multicast service data that more excellent ground can take in the clean culture sub-district adjacent with the broadcast multi-broadcasting sub-district, so that the clean culture sub-district is come and broadcast multi-broadcasting cell synchronizing transmission broadcast and multicast service data based on the dominant frequency resource of selecting as clean culture sub-district dominant frequency.As shown in Figure 9, in the methods of the invention the dominant frequency resource that is taken by the MBMS business datum in the clean culture sub-district being used for the frequency resource distribution sketch map of transferring MBMS service data, suppose the Cell3 among Fig. 9; 4 are respectively clean culture sub-district, Cell1,2; 5; 6,7 are respectively the broadcast multi-broadcasting sub-district based on many cell transmission mode transferring MBMS service data, and wherein the transmission of MBMS business datum has occupied the secondary resource frequently of part of Cell1; And the part that has occupied Cell3 secondary resource and part dominant frequency resource frequently, also occupied the secondary resource frequently of part and whole dominant frequency resources of Cell4; Suppose user A, B and C lay respectively in the broadcast multi-broadcasting sub-district, and user D is arranged in clean culture sub-district Cell4, and be typical, the zone of transition of user C between broadcast multi-broadcasting sub-district and adjacent clean culture sub-district.In the prior art when the clean culture sub-district when sending unicast data with the consistent dominant frequency of frequency resource that broadcast multi-broadcasting cell transmission MBMS business datum takies; The user C that is positioned at zone of transition will receive adjacent clean culture sub-district 3 when receiving the MBMS business datum; The interference of 4 unicast traffic; User in zone of transition receives the interference of unicast service when receiving the MBMS business datum; And improve the received power that user in the zone of transition receives the MBMS business datum simultaneously; Can be based on the present invention program in clean culture sub-district 3; Send same MBMS business datum based on the primary band that is taken by the MBMS business data transmission and broadcast multi-broadcasting cell synchronizing in 4, promptly clean culture sub-district 3 and 4 uses black and white lattice in self acquisition frequency resource to represent that frequency partly comes transferring MBMS service data respectively, also can use frequency that the black and white lattice the represent a part of frequency in partly to come transferring MBMS service data respectively.
Select as the secondary frequency resource frequently in clean culture sub-district in the identical frequency range of the frequency resource that takies with broadcast and multicast service data that can certainly take, so that the clean culture sub-district is come and broadcast multi-broadcasting cell synchronizing transmission broadcast and multicast service data based on the secondary resource of selecting frequently in the clean culture sub-district adjacent with the broadcast multi-broadcasting sub-district.Specifically shown in figure 10, in the methods of the invention the secondary resource frequently that is taken by the MBMS business datum in the clean culture sub-district being used for the frequency resource distribution sketch map of transferring MBMS service data.
Can also select respectively as clean culture sub-district dominant frequency and secondary frequency resource frequently; So that the clean culture sub-district is come and broadcast multi-broadcasting cell synchronizing transmission broadcast and multicast service data based on the major-minor frequency resource of selecting; Specifically shown in figure 11, in the methods of the invention the dominant frequency that is taken by the MBMS business datum in the clean culture sub-district, secondary resource frequently being used for the frequency resource distribution sketch map of transferring MBMS service data.
Wherein when clean culture sub-district and broadcast multi-broadcasting cell synchronizing transmission broadcast and multicast service data; Clean culture cell transmission broadcast and multicast service data also will be limited by the through-put power control under the interference coordination channeling state, as is limited by the through-put power control under the multiplexing state of SFR.
Enumerate the practical implementation process that a specific embodiment specifies the inventive method below:
Present embodiment is an example with above-mentioned communication environment shown in Figure 9; Cell1,2,5,6 and 7 is respectively the broadcast multi-broadcasting sub-district; Cell3 and 4 is respectively the clean culture sub-district, and supposing between these 7 sub-districts to carry out based on the multiplexing factor based on communications bandwidth 10MHz is 3 SFR multiplexing process, makes the transmission bandwidth of 10MHz be divided into 12 subbands; Each subband comprises 30 number of sub-carrier, and a TTI is 0.5 millisecond.12 * 30 number of sub-carrier are divided into 3 groups, and each cell selecting one group of subcarrier wherein is as boss's carrier wave of this sub-district, and promptly as the dominant frequency of this sub-district, other two groups of subcarriers that do not select are as the auxiliary son carrier waves of this sub-district, i.e. frequently secondary as this sub-district.
The embodiment here is meant at OFDM (OFDM; Orthogonal Frequency DivisionMultiplex) transmission of realization MBMS business datum on the GSM; Shown in figure 12; Be the modulation and demodulation system processing procedure sketch map of basic ofdm system, in ofdm system, user data at first passes through chnnel coding and interleaving treatment; Adopt the data after certain modulation system (as adopting modulation systems such as BPSK, QPSK and QAM) is handled code interleaving to modulate then to form user data symbol; Through OFDM operation after be modulated to radio frequency on, here no longer too much give unnecessary details again by wherein reverse rectification processing procedure and this process contrary for user data symbol.
Wherein above-mentioned in the middle of the OFDM operation; At first to user data symbol be carried out serial/parallel conversion; To form the sub data flow of a plurality of low rates, wherein each sub data flow takies a number of sub-carrier, and the processing that each sub data flow is mapped on the corresponding subcarrier can be passed through reverse DFT (IDFT; InverseDiscrete Fourier Transformation) perhaps reverse FFT (IFFT, Inverse FastFourier Transformation) processing realizes.Then through adding Cyclic Prefix (CP; Cyclic Prefix) time-domain signal that is treated to after IDFT or IFFT handle increases Cyclic Prefix (CP); With at interval as protection; Can significantly reduce even eliminate intersymbol interference like this, and guarantee the orthogonality of each interchannel, thereby significantly reduce the interference of interchannel.
The embodiment here supposes that the dominant frequency that broadcast multi-broadcasting sub-district 1 takies is 0～3.3MHz; The dominant frequency that clean culture sub-district 3 takies is 3.4MHz～6.7MHz; The dominant frequency that clean culture sub-district 4 takies is 6.8MHz～10MHz, and the resource of frequency range that high-rise notification broadcast multicast sub-district takies between 4MHz～10MHz is come transferring MBMS service data (1,2; ... 5,6).And the frequency range of the high-rise transmission MBMS business datum of distributing for clean culture sub-district 3 and 4 of hypothesis is transmitted whole dominant frequency of the frequency range covering that the MBMS business datum takies for it; The MBMS business datum will be sent with the broadcast multi-broadcasting cell synchronizing in clean culture sub-district 3 on the frequency range of 4MHz～6.7MHz so; And clean culture sub-district 4 will be on the frequency range of 6.8MHz～10MHz sends the MBMS business datum with the broadcast multi-broadcasting cell synchronizing, and its concrete frequency resource distribution is shown in figure 13.
Specifically shown in figure 14; For in ofdm system, carry out the concrete input data mode sketch map before IFFT handles according to the above embodiment of the present invention, the transmission bandwidth that wherein in broadcast multi-broadcasting sub-district 1 (MBMS Cell1), takies 4MHz～10MHz is imported MBMS business datum (1,2; ... 5,6); And the transmission bandwidth that in clean culture sub-district 3 (Unicast Cell3), takies 4MHz～6.7MHz is imported MBMS business datum (5,6); The transmission bandwidth that in clean culture sub-district 4 (Unicast Cell4), takies 6.8MHz～10MHz is imported MBMS business datum (1,2,3,4).
This shows; Pass through in the clean culture sub-district adjacent in the said method that the present invention proposes with the broadcast multi-broadcasting sub-district; Use is broadcasted the frequency range that frequency resource that multicast cell transmission broadcast and multicast service data takies covers and comes and broadcast multi-broadcasting cell synchronizing transmission broadcast and multicast service data; So just can improve the user who is in the zone of transition between broadcast multi-broadcasting sub-district and the clean culture sub-district and receive the received power of broadcasting multicast service, and then improve the receptivity that user in the zone of transition receives broadcasting multicast service.
Broadcast multicast service transmission method corresponding to the above-mentioned proposition of the present invention; The present invention has also proposed a kind of transmission system of broadcasting multicast service here; Please with reference to Figure 15; This figure is the main composition structured flowchart of first kind of broadcasting multicast service transmission system proposing of the present invention, and it comprises that mainly frequency confirms unit 10, frequency selected cell 20 and business data transmission unit 30, and wherein the concrete effect of each component units is following:
Frequency is confirmed unit 10, is used for confirming the shared frequency resource of broadcast multi-broadcasting cell transmission broadcast and multicast service data based on many cell transmission mode at the cellular cell that adopts channeling;
Frequency selected cell 20, what be used for taking in the clean culture sub-district adjacent with the broadcast multi-broadcasting sub-district confirms the corresponding frequency resource of frequency range selection that unit 10 determined frequency resources are identical with said frequencies;
Business data transmission unit 30, frequency resource that is used for selecting based on said frequencies selected cell 20 the clean culture sub-district and broadcast multi-broadcasting sub-district confirm that based on said frequencies the frequency resources that unit 10 is confirmed come the synchronous transmission broadcast and multicast service data.
Shown in figure 16; Concrete composition structured flowchart for system of the present invention medium frequency selected cell; It comprises that specifically frequency allocation obtains subelement 210, frequency chooser unit 220 and select frequency adjustment subelement 230, and wherein the concrete effect of each component units is following:
Select frequency adjustment subelement 230, be used for the frequency resource that follow-up that take in the clean culture sub-district and frequency are confirmed dynamically to adjust frequency the unit identical frequency range of 10 determined frequency resources chooser unit 220 selected.
Wherein in system of the present invention; If the frequency multiplexing mode between the different cellular cells is during based on the frequency multiplexing mode of interference coordination; What its frequency selected cell 20 can take in the clean culture sub-district adjacent with the broadcast multi-broadcasting sub-district confirms to be chosen as in the identical frequency range of unit 10 determined frequency resources the frequency resource that clean culture cell edge region user serves with frequency; Also can be chosen as the frequency resource of clean culture center of housing estate zone user service, can also be chosen as the frequency resource of clean culture cell edge region user service simultaneously and be the frequency resource of clean culture center of housing estate zone user's service.Like this in system of the present invention; Can also and then comprise one first through-put power control unit on the main composition architecture basics of above-mentioned Figure 15, be used for the process of business data transmission unit 30 transmission broadcast and multicast service data in the clean culture sub-district being carried out power control based on the through-put power under the interference coordination channeling state.
When adopting the SFR mode to carry out the channeling processing between the for example different cellular cells; Frequency selected cell 20 can be selected the frequency resource as clean culture sub-district dominant frequency; Also can select as the secondary frequency resource frequently in clean culture sub-district, can also select as the frequency resource of clean culture sub-district dominant frequency with as the secondary frequency resource frequently in clean culture sub-district.Like this in system of the present invention; Can also and then comprise one second through-put power control unit on the main composition architecture basics of above-mentioned Figure 15, be used for the process of business data transmission unit 30 transmission broadcast and multicast service data in the clean culture sub-district being carried out power control based on the through-put power under the multiplexing state of SFR.
Wherein the concrete technology of other in the transmission system of broadcasting multicast service of the present invention realizes that details please be corresponding to the description of the correlation technique details in the said method of the present invention, no longer gives too much to give unnecessary details here.
Technical scheme of the present invention considers that also the user receives the lower problem of broadcast and multicast service data power in the zone of transition between broadcast multi-broadcasting sub-district and adjacent clean culture sub-district; Might be owing to excessive the causing of interference that unicast data causes user in the zone of transition sent in the clean culture sub-district; Any business datum (comprising unicast data and broadcast and multicast service data) hour can not transmitted in the unicast service amount in the clean culture sub-district in being broadcasted the frequency range that frequency resource that multicast cell transmission broadcast and multicast service data takies covers in fact; Thereby reduce user in the zone of transition is received the interference that broadcast and multicast service data causes; Covert improve the received power that user in the zone of transition receives broadcast and multicast service data, improve the receptivity that user in the zone of transition receives broadcast and multicast service data with this.
Based on above-mentioned thought, the present invention has also proposed the transmission method of another kind of broadcasting multicast service here, and please with reference to Figure 17, this figure is the main realization principle flow chart of the transmission method of the another kind of broadcasting multicast service that proposes of the present invention, and its main implementation procedure is following:
Step S100 in the cellular cell that adopts channeling (like the channeling based on interference coordination, typical in SFR), confirms the shared frequency resource of broadcast multi-broadcasting cell transmission broadcast and multicast service data based on many cell transmission mode;
Wherein can confirm the shared frequency resource of broadcast multi-broadcasting cell transmission broadcast and multicast service data, and the frequency resource information of deciding is notified respectively to broadcast multi-broadcasting sub-district and adjacent clean culture sub-district by high-rise (like AGW);
Step S200; Broadcast and multicast service data is transmitted in the broadcast multi-broadcasting sub-district on above-mentioned definite frequency resource; The transmission (comprising unicast data and broadcast and multicast service data) of any business datum is not carried out in meanwhile adjacent with broadcast multi-broadcasting sub-district clean culture sub-district in the frequency range identical with above-mentioned definite frequency resource that takies; Thereby reduce user in the zone of transition is received the interference that broadcast and multicast service data causes, and then improve the receptivity that the interior user of zone of transition receives broadcast and multicast service data.
The transmission method of second of above-mentioned proposition kind of broadcasting multicast service according to the present invention; Please with reference to Figure 18; This figure is the frequency resource distribution sketch map that does not carry out any transfer of data on the frequency resource that in the clean culture sub-district, is taken by the MBMS business datum in the methods of the invention; This shows in clean culture sub-district 3 and 4; The transmission of any business datum be will not carry out in the identical frequency range of the frequency resource that occupies with broadcast multi-broadcasting cell transmission MBMS business datum that takies at it, the transmission of not carrying out unicast data and the transmission of not carrying out the MBMS business datum etc. comprised.
Another kind of broadcast multicast service transmission method corresponding to the above-mentioned proposition of the present invention; The proposition that the present invention is corresponding here the transmission system of second kind of broadcasting multicast service; Please with reference to Figure 19; This figure is the main composition structured flowchart of second kind of broadcasting multicast service transmission system proposing of the present invention, and it comprises that mainly frequency confirms unit 100, broadcast and multicast service data transmission unit 200 and transfer of data screen unit 300, and wherein the concrete effect of each component units is following:
Frequency is confirmed unit 100, is used in the cellular cell that adopts channeling (like the channeling based on interference coordination, typical in SFR), confirming the shared frequency resource of broadcast multi-broadcasting cell transmission broadcast and multicast service data based on many cell transmission mode;
Broadcast and multicast service data transmission unit 200 is used in the broadcast multi-broadcasting sub-district confirming that based on said frequencies unit 100 determined frequency resources transmit broadcast and multicast service data;
Transfer of data screen unit 300; Be used for broadcast and multicast service data transmission unit 200 in broadcast multi-broadcasting sub-district transmission broadcast and multicast service data; In the clean culture sub-district adjacent with the broadcast multi-broadcasting sub-district; Shielding is confirming to carry out in the identical frequency range of unit 100 determined frequency resources the transmission (comprising unicast data and broadcast and multicast service data) of any business datum with said frequencies; Reducing that user in the zone of transition is received the interference that broadcast and multicast service data is caused, and then improve the receptivity that user in the zone of transition receives broadcast and multicast service data.
Obviously, those skilled in the art can carry out various changes and modification to the present invention and not break away from the spirit and scope of the present invention.Like this, belong within the scope of claim of the present invention and equivalent technologies thereof if of the present invention these are revised with modification, then the present invention also is intended to comprise these changes and modification interior.
Claims (22)
1. the transmission method of a broadcasting multicast service is characterized in that, comprises step:
In the cellular cell that adopts channeling, confirm the shared frequency resource of broadcast multi-broadcasting cell transmission broadcast and multicast service data based on many cell transmission mode;
In the frequency range identical that the clean culture sub-district adjacent with the broadcast multi-broadcasting sub-district takies, select corresponding frequency resource with determined frequency resource;
Said clean culture sub-district based on the frequency resource of selecting and broadcast multi-broadcasting sub-district based on definite frequency resource synchronous transmission broadcast and multicast service data.
2. the method for claim 1 is characterized in that, confirms the shared frequency resource of said broadcast multi-broadcasting cell transmission broadcast and multicast service data by high level; And
The frequency resource information of confirming is notified to said broadcast multi-broadcasting sub-district.
3. method as claimed in claim 2 is characterized in that, the process of said selection respective frequencies resource specifically comprises:
High level obtains the frequency allocation information of clean culture sub-district under the channeling state; And
Select corresponding frequency resource in the frequency range identical that takies in the clean culture sub-district according to the frequency allocation information of clean culture sub-district with determined frequency resource;
High-rise frequency resource information with selection is notified to the clean culture sub-district.
4. method as claimed in claim 3 is characterized in that, the process of said selection respective frequencies resource specifically also comprises:
The frequency resource that dynamic adjustment has been selected in the high-rise frequency range identical with determined frequency resource that takies in the clean culture sub-district; And
Adjusted frequency resource information is notified to the clean culture sub-district.
5. method as claimed in claim 2 is characterized in that, the process of said selection respective frequencies resource specifically comprises:
High level notifies the shared frequency resource information of confirming of broadcast multi-broadcasting cell transmission broadcast and multicast service data to the clean culture sub-district;
Corresponding frequency resource is selected according to from the frequency allocation information under the channeling state in said clean culture sub-district in the frequency range identical with determined frequency resource that takies at self.
6. method as claimed in claim 5 is characterized in that, the process of said selection respective frequencies resource specifically also comprises:
The frequency resource that dynamic adjustment has been selected in the frequency range identical with determined frequency resource that the clean culture sub-district takies at self.
7. like the described method of 1～6 arbitrary claim, it is characterized in that said channeling is the channeling based on interference coordination.
8. method as claimed in claim 7 is characterized in that, is chosen as the frequency resource of clean culture cell edge region user service; And/or
Be chosen as the frequency resource of clean culture center of housing estate zone user's service.
9. method as claimed in claim 7 is characterized in that, said clean culture cell transmission broadcast and multicast service data is limited by the through-put power control under the interference coordination channeling state.
10. like the described method of 1～6 arbitrary claim, it is characterized in that said channeling is the soft-frequency reuse based on interference coordination.
11. method as claimed in claim 10 is characterized in that, selects the frequency resource as clean culture sub-district dominant frequency; And/or
Selection is as the secondary frequency resource frequently in clean culture sub-district.
12. method as claimed in claim 10 is characterized in that, said clean culture cell transmission broadcast and multicast service data is limited by the through-put power control under the soft-frequency reuse state.
13. the transmission system of a broadcasting multicast service is characterized in that, comprising:
Frequency is confirmed the unit, is used for confirming the shared frequency resource of broadcast multi-broadcasting cell transmission broadcast and multicast service data based on many cell transmission mode at the cellular cell that adopts channeling;
The frequency selected cell, what be used for taking in the clean culture sub-district adjacent with the broadcast multi-broadcasting sub-district confirms the corresponding frequency resource of frequency range selection that the determined frequency resource in unit is identical with frequency;
The business data transmission unit, the frequency resource synchronous transmission broadcast and multicast service data that the unit is confirmed is confirmed based on frequency in the frequency resource and the broadcast multi-broadcasting sub-district that are used for selecting based on the frequency selected cell clean culture sub-district.
14. system as claimed in claim 13 is characterized in that, said frequency selected cell specifically comprises:
Subelement is obtained in frequency allocation, is used to obtain clean culture sub-district the frequency allocation information under channeling state adjacent with the broadcast multi-broadcasting sub-district;
Frequency chooser unit is used for obtaining according to frequency allocation the frequency allocation information of the clean culture sub-district that subelement obtains, and what take in the clean culture sub-district confirms to select in the identical frequency range of the determined frequency resource in unit corresponding frequency resource with frequency.
15. system as claimed in claim 14; It is characterized in that; Said frequency selected cell specifically also comprises selects frequency adjustment subelement, and what be used for taking in the clean culture sub-district confirms the identical frequency range of the determined frequency resource in the unit selected frequency resource in chooser unit of dynamically adjusting frequency with frequency.
16., it is characterized in that said frequency selected cell is chosen as the frequency resource of clean culture cell edge region user service like claim 13,14 or 15 described systems; And/or
Be chosen as the frequency resource of clean culture center of housing estate zone user's service.
17. system as claimed in claim 16; It is characterized in that; Also comprise the first through-put power control unit, be used for the process of business data transmission unit transmission broadcast and multicast service data in the clean culture sub-district being carried out power control based on the through-put power under the interference coordination channeling state.
18., it is characterized in that said frequency selected cell is selected the frequency resource as clean culture sub-district dominant frequency like claim 13,14 or 15 described systems; And/or
Selection is as the secondary frequency resource frequently in clean culture sub-district.
19. system as claimed in claim 18; It is characterized in that; Also comprise the second through-put power control unit, be used for the process of business data transmission unit transmission broadcast and multicast service data in the clean culture sub-district being carried out power control based on the through-put power under the soft-frequency reuse state.
20. the transmission method of a broadcasting multicast service is characterized in that, comprises step:
In the cellular cell that adopts channeling, confirm the shared frequency resource of broadcast multi-broadcasting cell transmission broadcast and multicast service data based on many cell transmission mode;
In the transmission broadcast and multicast service data, the transmission of any business datum is not carried out in the clean culture sub-district adjacent with the broadcast multi-broadcasting sub-district in the frequency range identical with determined frequency resource that takies on the frequency resource of confirming in said broadcast multi-broadcasting sub-district.
21. method as claimed in claim 20 is characterized in that, confirms the shared frequency resource of said broadcast multi-broadcasting cell transmission broadcast and multicast service data by high level; And
The frequency resource information of confirming is notified respectively to said broadcast multi-broadcasting sub-district and adjacent clean culture sub-district.
22. the transmission system of a broadcasting multicast service is characterized in that, comprising:
Frequency is confirmed the unit, is used for confirming the shared frequency resource of broadcast multi-broadcasting cell transmission broadcast and multicast service data based on many cell transmission mode at the cellular cell that adopts channeling;
The broadcast and multicast service data transmission unit is used for confirming the determined frequency resource transmission in unit broadcast and multicast service data in the broadcast multi-broadcasting sub-district based on frequency;
The transfer of data screen unit; Be used for the broadcast and multicast service data transmission unit in broadcast multi-broadcasting sub-district transmission broadcast and multicast service data; In the clean culture sub-district adjacent with the broadcast multi-broadcasting sub-district, shielding is confirming to carry out in the identical frequency range of the determined frequency resource in unit the transmission of any business datum with frequency.
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| CN2006100781196A CN101064904B (en) | 2006-04-26 | 2006-04-26 | Method for transmitting broadcasting multicasting service and system thereof |
| PCT/CN2007/001382 WO2007131419A1 (en) | 2006-04-26 | 2007-04-25 | A method and system for transmitting broadcast multicast service |
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| CN101466071B (en) * | 2007-12-17 | 2010-11-10 | 华为技术有限公司 | Method and apparatus for distributing time frequency resource |
| CN101552950B (en) * | 2008-04-01 | 2011-04-20 | 大唐移动通信设备有限公司 | Method and device for transmitting multimedia broadcast service control data |
| WO2009122783A1 (en) * | 2008-04-01 | 2009-10-08 | 日本電気株式会社 | Wireless communication system, base station, wireless communication method, and program |
| CN101640841B (en) * | 2008-07-31 | 2013-07-03 | 中兴通讯股份有限公司 | Method and device for allocating multimedia broadcast-multicast service resources |
| CN102239717A (en) * | 2008-10-28 | 2011-11-09 | 新加坡科技研究局 | A method of optimising bandwidth allocation in a wireless communication network |
| CN101902690B (en) * | 2009-05-27 | 2016-10-05 | 上海贝尔股份有限公司 | The method integrated for unicast service and broadcasting multicast service and equipment thereof |
| CN101888638B (en) * | 2010-05-14 | 2012-11-14 | 北京邮电大学 | Heterogeneous network information broadcasting method and system based on connatural grid grouping |
| US11477687B2 (en) * | 2019-08-29 | 2022-10-18 | Qualcomm Incorproated | Delivery of broadcast services using different broadcast/multicast radio bearer modes |
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| CN1750703A (en) * | 2004-09-13 | 2006-03-22 | 大唐移动通信设备有限公司 | Method for distributing radio resource in multiple carrier time-division duplex mobile communication system |
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| EP2429099A3 (en) * | 2003-05-28 | 2014-04-30 | Nvidia Corporation | Method, base station and mobile station for tdd operation in a communication system |
| KR20050107968A (en) * | 2004-05-10 | 2005-11-16 | 삼성전자주식회사 | Method for measurement and reception of preferred layer on mbms service in mobile communication system |
| KR100965659B1 (en) * | 2004-09-14 | 2010-06-25 | 삼성전자주식회사 | Method for indicating cell selection when session stop in mbms system and system thereof |
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| CN1750703A (en) * | 2004-09-13 | 2006-03-22 | 大唐移动通信设备有限公司 | Method for distributing radio resource in multiple carrier time-division duplex mobile communication system |
| CN101047938A (en) * | 2006-03-28 | 2007-10-03 | 华为技术有限公司 | Radio cellular network and its middle-freuqency setion distribution method |
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