CN102480685A - Method and device of transmitting MBMS (Multimedia Broadcast Multicast Service) by using TVWS (Television White Space) - Google Patents
Method and device of transmitting MBMS (Multimedia Broadcast Multicast Service) by using TVWS (Television White Space) Download PDFInfo
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- CN102480685A CN102480685A CN201010555586XA CN201010555586A CN102480685A CN 102480685 A CN102480685 A CN 102480685A CN 201010555586X A CN201010555586X A CN 201010555586XA CN 201010555586 A CN201010555586 A CN 201010555586A CN 102480685 A CN102480685 A CN 102480685A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/02—Details
- H04L12/16—Arrangements for providing special services to substations
- H04L12/18—Arrangements for providing special services to substations for broadcast or conference, e.g. multicast
- H04L12/189—Arrangements for providing special services to substations for broadcast or conference, e.g. multicast in combination with wireless systems
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/30—Resource management for broadcast services
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W16/00—Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
- H04W16/14—Spectrum sharing arrangements between different networks
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Abstract
The invention discloses a method and device of transmitting a MBMS (Multimedia Broadcast Multicast Service) by using a TVWS (Television White Space); the method comprises the following steps of: calculating path loss gain of the MBMS which is transmitted on the idle TVWS relative to an authorized frequency spectrum by the combination of base stations with the same idle TVWS; and calculating path loss gain capable of meeting the transmitting requirement of the MBMS, and selecting the corresponding base station combination to transmit the MBMS on the idle TVWS. The method can be used for solving the problems that the MBMS transmission is difficult to start due to a harsher start threshold, and unicast business can be developed as resources occupied by the MBMS business can be released.
Description
Technical field
The present invention relates to wireless communication field, be meant the method and apparatus of a kind of use TV blank frequency spectrum (TVWS) transmission multicast service (MBMS) especially.
Background technology
Multicast service (MBMS, the Multimedia Broadcast Multicast Service) transmission of Long Term Evolution (LTE, Long Term Evolution) R9 version also is in the very simple stage.Network side is before the MBMS transmission, and whether return each enhanced base station of inquiry (eNB, enhanced Node Base station) earlier has resource to support the MBMS transmission, if each eNB has resource, then starts this MBMS transmission, up to this MBMS service ending.
Not enough below above-mentioned MBMS transmission mechanism exists:
1) start relatively harshness of thresholding, if 100 eNB of network challenge, if the inadequate resource of 1 eNB is still arranged, then this MBMS can't transmit;
2) eNB can't select to add or withdraw from, in case promptly certain eNB adds MBMS transmission according to MBMS business, unicast service and resource flexibly; Then can only when the MBMS service ending, withdraw from; In transmission course, even this eNB inadequate resource can not withdraw from the MBMS transmission yet.
Because it is relatively harsher to start thresholding, cause the unlatching difficulty of MBMS transmission, professional impression descends to MBMS to make the user; In addition because eNB can't add, withdraw from MBMS transmission flexibly, like this unicast service user more for a long time because the MBMS business takies resource and can't discharge, make the unicast service of eNB to carry out, be used for that impression descends to unicast services.
Summary of the invention
In view of this; Main purpose of the present invention is to provide a kind of method and apparatus of the TVWS of use MBMS transmission; Relatively harsher to solve owing to starting thresholding; The problem that causes the unlatching difficulty of MBMS transmission, and can't discharge the problem that the unicast service that causes can't be carried out because the MBMS business takies resource.
A kind of method of using the TVWS MBMS transmission, this method comprises: calculating has in the base station of identical idle TVWS, and various group of base stations are combined in said idle TVWS and go up with respect to authorizing the path loss gain of sending MBMS on the frequency spectrum; Calculating can be satisfied the path loss gain that MBMS sends demand, and selects corresponding group of base stations to be combined in said idle TVWS and upward send MBMS.
Calculate said path loss gain; Specifically comprise: the maximum path loss that the base station that calculates is sent MBMS to the inherent said mandate frequency spectrum of self coverage; Deduct the base station that calculates and on said TVWS, send the maximum path loss of MBMS, obtain said path loss gain.
Calculate before the said path loss gain, this method also comprises: confirm the said propagation model that on said idle TVWS, uses between any two in the base station of identical idle TVWS that has.
The maximum path loss of MBMS is sent in said base station on said TVWS, comprising: the maximum path loss that sends MBMS is gone up to the inherent said TVWS of self coverage in the base station that calculates; And/or on said TVWS, send the maximum path loss of MBMS between the base station that calculates according to said propagation model.
Calculating can be satisfied the path loss gain that MBMS sends demand, specifically comprises: calculation base station is being authorized the merging gain of sending MBMS on the frequency spectrum; When said path loss gain gained more than or equal to said merging, said path loss gain was satisfied MBMS and is sent demand.
When said base station with identical idle TVWS had N, N was greater than 1, and this method also comprises: every kind of base station combination calculation obtains one group of said path loss gain; One group of said path loss gain comprises N path loss gain of a corresponding N base station.
When said N path loss gain during, confirm that said one group of path loss gain satisfies MBMS and send demand, and select corresponding group of base stations to be combined in said idle TVWS and go up and send MBMS respectively more than or equal to the said merging gain of N of correspondence.
After selecting group of base stations to be combined in the last MBMS of transmission of said idle TVWS, this method also comprises: generate the reprovision strategy of TVWS and MBMS, send to said base station with identical idle TVWS.
A kind of device that uses the TVWS MBMS transmission, this device comprises:
First computing unit, calculating has in the base station of identical idle TVWS, and various group of base stations are combined in said idle TVWS and go up with respect to authorizing the path loss gain of sending MBMS on the frequency spectrum;
Second computing unit is used to calculate the path loss gain that can satisfy the MBMS transmission demand;
The reprovision unit is used to select the corresponding group of base stations of path loss gain of the said MBMS of satisfying transmission demand to be combined in upward MBMS transmission of said idle TVWS.
The combination of said base station comprises one or more base stations.
Said first computing unit also is used for the base station that calculates is sent to the inherent said mandate frequency spectrum of self coverage the maximum path loss of MBMS, deducts MBMS is sent in the base station that calculates on said TVWS maximum path loss, obtains said path loss and gains.
Said first computing unit also is used for the propagation model of confirming that said base station with identical idle TVWS is used between any two on said idle TVWS; The maximum path loss of MBMS is sent in the base station that said first computing unit calculates on said TVWS, comprising: the maximum path loss that sends MBMS is gone up to the inherent said TVWS of self coverage in the base station that calculates; And/or on said TVWS, send the maximum path loss of MBMS between the base station that calculates according to said propagation model.
Said second computing unit also is used for calculation base station and is authorizing the merging gain of sending MBMS on the frequency spectrum; When said path loss gain during, confirm that said path loss gain satisfies MBMS and send demand more than or equal to said merging gain.
Said reprovision unit also is used for after having selected group of base stations to be combined on the said idle TVWS to send MBMS, generating the reprovision strategy of TVWS and MBMS, sends to said base station with identical idle TVWS.
The present invention uses the scheme of TVWS MBMS transmission; Through to the base station on the idle TVWS with respect to the path loss gain calculating of authorizing MBMS transmission on the frequency spectrum; When confirming that the path loss gain can be satisfied the MBMS transmission demand; And select corresponding base station MBMS transmission on this free time TVWS, solved owing to start relatively harshness of thresholding; Simultaneously; Other base stations in this zone are closed in the function of authorizing MBMS transmission on the frequency spectrum; Make these base stations can be through opening other business of frequency spectrum exhibition of authorizing, unicast service etc. have for example solved because the MBMS business takies resource and can't discharge the problem that the unicast service that causes can't be carried out.
Description of drawings
Fig. 1 uses the method flow sketch map of TVWS MBMS transmission for the present invention;
Fig. 2 uses the apparatus structure sketch map of TVWS MBMS transmission for the present invention.
Embodiment
Below in conjunction with accompanying drawing and specific embodiment technical scheme of the present invention is further set forth in detail.
The present invention uses the method for TVWS MBMS transmission as shown in Figure 1, comprising:
Wherein, described base station combination comprises one or more base stations.
According to the application scenarios of reality, need confirm to have the propagation model that on this free time TVWS, uses between any two in a plurality of base stations of identical idle TVWS.For the single base station of no identical idle TVWS, need not to confirm said propagation model.
The present invention calculates the path loss gain, specifically comprises:
1, calculation base station sends the maximum path loss of MBMS on this free time TVWS;
2, calculation base station is to the inherent maximum path loss that sends MBMS on the frequency spectrum of authorizing of self coverage;
The latter is deducted the former, just obtained this base station and gained with respect to the path loss of authorizing MBMS transmission on the frequency spectrum on this free time TVWS.
Wherein, the maximum path loss of MBMS is sent in the base station on this free time TVWS, comprise following situation:
The maximum path loss that sends MBMS should be gone up by free time TVWS to self coverage inherence in the base station; And/or on this free time TVWS, send the maximum path loss of MBMS between the base station that calculates according to propagation model.
It is pointed out that when the base station with identical idle TVWS has N (N is greater than 1) individual: can obtain one group of path loss gain through calculating for every kind of base station combination; One group of path loss gain comprises N path loss gain of a corresponding N base station.
Can be called a path loss gain collection with organizing path loss gain composition more.
Calculating can be satisfied the path loss gain that MBMS sends demand, specifically comprises:
1, calculation base station is being authorized the merging gain of sending MBMS on the frequency spectrum;
2, when the path loss gain gains more than or equal to merging; The path loss gain is satisfied MBMS and is sent demand; Further, for the gain of one group of path loss, when N path loss gain wherein gains more than or equal to N merging of correspondence respectively; Definite this group path loss gain is satisfied MBMS and is sent demand, and selects corresponding group of base stations to be combined in this free time TVWS and upward send MBMS.
It is pointed out that a path loss gain centered possibly exist many groups to satisfy the path loss gain of MBMS transmission demand; Possibly not exist yet.
After selecting to send the base station of MBMS, can also select to close a part of base station transmits MBMS.
Further; The present invention can also be according to the above-mentioned base station of choosing of MBMS transmission on this free time TVWS; And be closed in the base station of authorizing MBMS transmission on the frequency spectrum, generate the reprovision strategy of MBMS and TVWS, and notice is given all base stations with identical idle TVWS.
The reprovision strategy of MBMS and TVWS can comprise:
Close the base station in the time of authorizing MBMS transmission on the frequency spectrum; With
Open the time of base station MBMS transmission on idle TVWS; With
Close the time of base station MBMS transmission on idle TVWS; With
Again open the base station in the time of authorizing MBMS transmission on the frequency spectrum.
Through concrete embodiment the method that the present invention is above-mentioned is described below.
Embodiment one
Suppose in the MBSFN zone that eNB1, eNB2, eNB3 form network and each with supporting TVWS to transmit per family, and eNB1, eNB2, eNB3 there is identical idle TVWS (TVWS1).
Step 201 is confirmed the propagation model that eNB1, eNB2, eNB3 use between any two on TVWS1.Confirm the prior art that is embodied as of propagation model, repeat no more here.
Suppose that the propagation model that eNB1, eNB2, eNB3 use between any two is Hata on TVWS1.
Step 202 under the Hata model, is calculated various group of base stations respectively and is combined on the TVWS 1 with respect to authorizing the path loss gain (for the ease of subsequent descriptions, abbreviating the path loss gain as) of sending MBMS on the frequency spectrum.
Among this embodiment, the base station combination has 7 kinds: and eNB1, eNB2, eNB3, (eNB1, eNB2), (eNB2, eNB3), (eNB1, eNB3), (eNB1, eNB2, eNB3) }.
1, under the Hata model, calculation base station is gone up the maximum path loss that sends MBMS to the inherent TVWS1 of base station range, and wherein, source base station and purpose base station can be two different base stations, also can be same base stations.
Suppose under the Hata model, through calculating:
It is P12 that eNB1 goes up the maximum path loss that sends MBMS to the inherent TVWS1 of eNB2 coverage;
It is P21 that eNB2 goes up the maximum path loss that sends MBMS to the inherent TVWS1 of eNB1 coverage;
It is P13 that eNB1 goes up the maximum path loss that sends MBMS to the inherent TVWS1 of eNB3 coverage;
It is P31 that eNB3 goes up the maximum path loss that sends MBMS to the inherent TVWS1 of eNB1 coverage;
It is P23 that eNB2 goes up the maximum path loss that sends MBMS to the inherent TVWS1 of eNB3 coverage;
It is P32 that eNB3 goes up the maximum path loss that sends MBMS to the inherent TVWS1 of eNB2 coverage;
ENB1, eNB2, eNB3 goes up the maximum path loss that sends MBMS to the inherent TVWS1 of coverage separately and is respectively P1, P2, P3.(base station calculates the inherent TVWS1 of self scope when going up the maximum path loss that sends MBMS, does not have necessary relation with above-mentioned Hata model).
It is pointed out that only to have a base station, eNB1 for example, the maximum path loss that on TVWS1, sends MBMS is P1.
2, calculate each base station and authorizing the maximum path loss that sends MBMS on the frequency spectrum.
Inherent to authorize the maximum path loss that sends MBMS on the frequency spectrum be S1 to eNB1 to self scope;
Inherent to authorize the maximum path loss that sends MBMS on the frequency spectrum be S2 to eNB2 to self scope;
Inherent to authorize the maximum path loss that sends MBMS on the frequency spectrum be S3 to eNB3 to self scope;
3, add up to the path loss gain of getting it right and answering according to group of base stations.
In this embodiment, the base station combination has following 7 kinds of situation: and eNB1, eNB2, eNB3, (eNB1, eNB2), (eNB2, eNB3), (eNB1, eNB3), (eNB1, eNB2, eNB3) }.
Then every kind of corresponding path loss of base station combination gains as shown in table 1:
Table 1
As shown in table 1, among this embodiment, corresponding one group of path loss gain (comprising 3 path loss gains) is made up in every kind of base station; Above-mentioned 7 groups of path loss gain combination are become a path loss gain collection.
It is pointed out that only there is a base station that for example during eNB1, then corresponding path loss gain is S1-P1.
Step 203, confirm that the path loss gain centered can satisfy one group of path loss gain that MBMS sends demand, is specially:
1, calculate eNB1, eNB2, each comfortable merging gain (M) of authorizing transmission MBMS on the frequency spectrum of eNB3 comprises:
With eNB1 is example, chooses in the coverage of eNB1, apart from an eNB2 and an eNB3 user farthest, at first, calculates eNB1, and when eNB2, eNB3 sent MBMS simultaneously on authorizing frequency spectrum, this user received the power W1 of MBMS; Secondly, calculate eNB1 when on the mandate frequency spectrum, sending MBMS, this user receives the power w1 of MBMS;
M1=W1-w1 then.
Authorizing the merging gain (M2=W2-w2 that sends MBMS on the frequency spectrum for eNB2, eNB3; M3=W3-w3) the same eNB1 of calculating repeats no more.
ENB1, eNB2, the merging gain (M) of sending MBMS on each comfortable mandate frequency spectrum of eNB3 is as shown in table 2:
| eNB1 | eNB2 | eNB3 |
| M1 | M2 | M3 |
Table 2
It is pointed out that when only having eNB1, merge gain and be w1 (user is interior apart from an eNB1 user farthest for the coverage of eNB1).
2,, confirms should group path loss to gain and to satisfy MBMS transmission demand when the corresponding one group of path loss gain of certain base station combination in the table 1 during respectively more than or equal to the merging gain of correspondence.
With combination eNB1 in base station in the table 1, eNB3 is an example, and as (S1-P1)+(S1-P31) during more than or equal to M1 and (S2-P12)+(S2-P32) more than or equal to M2 and (S3-P13)+(S3-P3) more than or equal to M3, explain should group path loss gain satisfies MBMS transmission demand.
It is pointed out that the path losses gain that possibly exist many groups to satisfy the demands simultaneously, when selecting wherein one group, multiple mode can be arranged: for example select one group of minimum path loss gain of value of path loss gain; Also can select one group of maximum path loss gain of value of path loss gain; Also can select one group of minimum path loss gain of base station number in the corresponding base station combination etc.The present invention does not do qualification to this.
Difficult to understand according to need, after having confirmed to satisfy one group of path loss gain of MBMS transmission demand, use the corresponding incompatible transmission of the group of base stations MBMS of this group path loss gain.
Suppose to choose group of base stations and be combined into eNB1, then eNB1 sends MBMS on TVWS1; Simultaneously, can close eNB2, eNB3 in the function of authorizing transmission MBMS on the frequency spectrum.
Further, become the reprovision strategy of MBMS and TVWS, and notify to the base station by the reprovision module of network side based on the group of base stations symphysis of selecting of MBMS transmission on TVWS.
In this embodiment, the reprovision module of network side notifies the reprovision strategy of MBMS and TVWS to eNB1, eNB2 and eNB3, and particular content is following:
Close eNB2, eNB3 in the time of authorizing MBMS transmission on the frequency spectrum; With
Open the time of eNB1 MBMS transmission on TVWS1; With
Close the time of eNB1 MBMS transmission on TVWS; With
Again open eNB1, eNB2, eNB3 in the time of authorizing MBMS transmission on the frequency spectrum.
Above-mentioned each time point confirms that according to the free time section of idle TVWS (this embodiment is TVWS1) for example the free time section of TVWS1 is t1 to t2, then
The time of closing eNB2, eNB3 MBMS transmission on the mandate frequency spectrum can be t1; With
The time of opening eNB1 MBMS transmission on TVWS1 can be t1; With
The time of closing eNB1 MBMS transmission on TVWS can be t2; With
The time of opening eNB1, eNB2, eNB3 MBMS transmission on the mandate frequency spectrum again can be t2.
Then, eNB1, eNB2 and eNB3 notify the reprovision strategy of above-mentioned MBMS and TVWS the user who serves to separately.
Method embodiment two
Suppose in the MBSFN zone that eNB1, eNB2, eNB3 form network and each with supporting TVWS to transmit per family, and eNB1, eNB2, eNB3 there is identical idle TVWS (TVWS1).
Step 301 is confirmed the propagation model that eNB1, eNB2, eNB3 use between any two on TVWS1.Suppose that the mode between eNB1, the eNB2 on TVWS1 is Hata; Mode between eNB1, the eNB3 on TVWS1 is Okumura; Mode between eNB2, the eNB3 on TVWS1 is the PCS expansion of Hata.
Step 302 is calculated various group of base stations and is combined in TVWS1 upward with respect to authorizing the path loss gain of sending MBMS on the frequency spectrum.
Suppose under the Hata model that 1, through calculating: it is P12 that eNB1 goes up the maximum path loss that sends MBMS to the inherent TVWS1 of eNB2 coverage; It is P21 that eNB2 goes up the maximum path loss that sends MBMS to the inherent TVWS1 of eNB1 coverage;
Suppose that under the Okumura model through calculating: it is P13 that eNB1 goes up the path loss that sends MBMS to the inherent TVWS1 of eNB3 coverage; It is P31 that eNB3 goes up the path loss that sends MBMS to the inherent TVWS1 of eNB1 coverage;
Suppose that under the PCS of Hata extended model through calculating: it is P23 that eNB2 goes up the path loss that sends MBMS to the inherent TVWS1 of eNB3 coverage; It is P32 that eNB3 goes up the path loss that sends MBMS to the inherent TVWS1 of eNB2 coverage;
Suppose to calculate eNB1, eNB2, eNB3 goes up the maximum path loss that sends MBMS to the inherent TVWS1 of coverage separately and is respectively P1, P2, P3.(base station calculates the inherent TVWS1 of self scope when going up the maximum path loss that sends MBMS, does not have necessary relation with above-mentioned model).
2, calculate each base station and authorizing the path loss that sends MBMS on the frequency spectrum.
Inherent to authorize the maximum path loss that sends MBMS on the frequency spectrum be S1 to eNB1 to self scope;
Inherent to authorize the maximum path loss that sends MBMS on the frequency spectrum be S2 to eNB2 to self scope;
Inherent to authorize the maximum path loss that sends MBMS on the frequency spectrum be S3 to eNB3 to self scope;
3, add up to the path loss gain of getting it right and answering according to group of base stations.Specifically realize repeating no more with step 202 here.
Step 303 confirms that the path loss gain centered can satisfy one group of path loss gain that MBMS sends demand.
Specifically realize repeating no more with step 203 here.
Suppose to choose eNB1 and eNB3 and send MBMS, then can also close the function of eNB2 MBMS transmission.
Further, the reprovision module of network side notifies the reprovision strategy of MBMS and TVWS to eNB1, eNB2 and eNB3, and particular content is following:
Close eNB2 in the time of authorizing MBMS transmission on the frequency spectrum; With
Open the time of eNB1 and eNB3 MBMS transmission on TVWS1; With
Close the time of eNB1 and eNB3 MBMS transmission on TVWS; With
Again open eNB1, eNB2, eNB3 in the time of authorizing MBMS transmission on the frequency spectrum.
Then, eNB1, eNB2 and eNB3 notify the reprovision strategy of above-mentioned MBMS and TVWS the user who serves to separately.
Embodiment three
Suppose eNB1, eNB2, eNB3, eNB4, eNB5, network reaches each with supporting the TVWS transmission per family in the MBSFN zone that eNB6 forms.ENB1, eNB2 have identical idle TVWS1; ENB3, eNB4 have identical idle TVWS2; ENB5 uses idle TVWS3; ENB6 uses idle TVWS4.
Step 401 is confirmed eNB1, and the propagation model between the eNB2 on TVWS1 is Hata;
At eNB1, in the eNB2 coverage, utilize the Hata Model Calculation, calculate respectively eNB1, eNB2, (eNB1, eNB2) } the corresponding path loss gain of these three kinds of base station combinations;
Suppose that one group of corresponding group of base stations of path loss gain that can satisfy the MBMS transmission demand is combined into eNB1; Then on TVWS1, a newly-built MBSFN, by eNB1, eNB2 forms, and in this zone, on TVWS1, sends MBMS by eNB1.
The reprovision module of network side notifies the reprovision strategy of MBMS and TVWS to eNB1 and eNB2, and particular content is following:
Close eNB2 in the time of authorizing MBMS transmission on the frequency spectrum; With
Open the time of eNB1 MBMS transmission on TVWS1; With
Close the time of eNB1 MBMS transmission on TVWS; With
Again open eNB1, eNB2 in the time of authorizing MBMS transmission on the frequency spectrum.
Then, eNB1, eNB2 notify the reprovision strategy of above-mentioned MBMS and TVWS the user who serves to separately.
Step 402 is confirmed eNB3, and the propagation model between the eNB4 on TVWS2 is Hata;
At eNB3, in the eNB4 coverage, utilize the Hata Model Calculation, calculate respectively eNB3, eNB4, (eNB3, eNB4) } the corresponding path loss gain of these three kinds of base station combinations;
Suppose to satisfy one group of corresponding group of base stations of path loss gain of MBMS transmission demand be combined into (eNB3, eNB4); Then on TVWS2, a newly-built MBSFN, by eNB3, eNB4 forms, and by eNB3, eNB4 sends MBMS on TVWS2 in this zone.
The reprovision module of network side notifies the reprovision strategy of MBMS and TVWS to eNB3 and eNB4, and particular content is following:
Close eNB3 and eNB4 in the time of authorizing MBMS transmission on the frequency spectrum; With
Open the time of eNB3 and eNB4 MBMS transmission on TVWS1; With
Close the time of eNB3 and eNB4 MBMS transmission on TVWS; With
Again open eNB3 and eNB4 in the time of authorizing MBMS transmission on the frequency spectrum.
Then, eNB3 and eNB4 notify the reprovision strategy of above-mentioned MBMS and TVWS the user who serves to separately.
Step 403, for eNB5, the propagation model on TVWS3 is Hata; Calculate the corresponding path loss gain of eNB5, but can not satisfy the MBMS transmission demand, it is constant that then eNB5 keeps original MBMS transmission.
Step 404, for eNB6, the propagation model on TVWS4 is Hata; Calculate the corresponding path loss gain P6 of eNB6, and can satisfy the MBMS transmission demand, then eNB6 MBMS transmission on TVWS4.
The reprovision module of network side notifies the reprovision strategy of MBMS and TVWS to eNB6, and particular content is following:
Close eNB6 in the time of authorizing MBMS transmission on the frequency spectrum; With
Open the time of eNB6 MBMS transmission on TVWS1; With
Close the time of eNB6 MBMS transmission on TVWS; With
Again open eNB6 in the time of authorizing MBMS transmission on the frequency spectrum.
Then, eNB6 notifies the reprovision strategy of above-mentioned MBMS and TVWS the user who serves to separately.
In order to realize said method, the invention provides a kind of device of the TVWS of use MBMS transmission, as shown in Figure 2, comprising:
First computing unit, calculating has in the base station of identical idle TVWS, and various group of base stations are combined in said idle TVWS and go up with respect to authorizing the path loss gain of sending MBMS on the frequency spectrum;
Second computing unit is used to calculate the path loss gain that can satisfy the MBMS transmission demand;
The reprovision unit is used to select the corresponding group of base stations of path loss gain of the said MBMS of satisfying transmission demand to be combined in upward MBMS transmission of said idle TVWS.
The combination of said base station comprises one or more base stations.
Said first computing unit also is used for the base station that calculates is sent to the inherent said mandate frequency spectrum of self coverage the maximum path loss of MBMS, deducts MBMS is sent in the base station that calculates on said TVWS maximum path loss, obtains said path loss and gains.
Said first computing unit also is used for the propagation model of confirming that said base station with identical idle TVWS is used between any two on said idle TVWS;
The maximum path loss of MBMS is sent in the base station that said first computing unit calculates on said TVWS, comprising: the maximum path loss that sends MBMS is gone up to the inherent said TVWS of self coverage in the base station that calculates; And/or on said TVWS, send the maximum path loss of MBMS between the base station that calculates according to said propagation model.
Said second computing unit also is used for calculation base station and is authorizing the merging gain of sending MBMS on the frequency spectrum; When said path loss gain during, confirm that said path loss gain satisfies MBMS and send demand more than or equal to said merging gain.
Said reprovision unit also is used for after having selected group of base stations to be combined on the said idle TVWS to send MBMS, generating the reprovision strategy of TVWS and MBMS, sends to said base station with identical idle TVWS.
The above is merely preferred embodiment of the present invention, is not to be used to limit protection scope of the present invention.
Claims (15)
1. a method of using the TVWS MBMS transmission is characterized in that, this method comprises:
Calculating has in the base station of identical idle TVWS, and various group of base stations are combined in said idle TVWS and go up with respect to authorizing the path loss gain of sending MBMS on the frequency spectrum;
Calculating can be satisfied the path loss gain that MBMS sends demand, and selects corresponding group of base stations to be combined in said idle TVWS and upward send MBMS.
2. according to the method for the said use of claim 1 TVWS MBMS transmission, it is characterized in that the combination of said base station comprises one or more base stations.
3. according to the method for the said use of claim 2 TVWS MBMS transmission, it is characterized in that, calculate said path loss gain, specifically comprise:
The base station that calculates is sent the maximum path loss of MBMS to the inherent said mandate frequency spectrum of self coverage, deduct MBMS is sent in the base station that calculates on said TVWS maximum path loss, obtain said path loss and gain.
4. according to the said method of using the TVWS MBMS transmission of claim 3; It is characterized in that; Calculate before the said path loss gain, this method also comprises: confirm the said propagation model that on said idle TVWS, uses between any two in the base station of identical idle TVWS that has.
5. according to the method for the said use of claim 4 TVWS MBMS transmission, it is characterized in that the maximum path loss of MBMS is sent in said base station on said TVWS, comprising:
The maximum path loss that sends MBMS is gone up to the inherent said TVWS of self coverage in the base station that calculates; And/or on said TVWS, send the maximum path loss of MBMS between the base station that calculates according to said propagation model.
6. according to the method for the said use of claim 5 TVWS MBMS transmission, it is characterized in that calculating can be satisfied the path loss gain that MBMS sends demand, specifically comprises:
Calculation base station is being authorized the merging gain of sending MBMS on the frequency spectrum;
When said path loss gain gained more than or equal to said merging, said path loss gain was satisfied MBMS and is sent demand.
7. according to the method for the said use of claim 6 TVWS MBMS transmission, it is characterized in that when said base station with identical idle TVWS had N, N was greater than 1, this method also comprises:
Every kind of base station combination calculation obtains one group of said path loss gain; One group of said path loss gain comprises N path loss gain of a corresponding N base station.
8. according to the said method of using the TVWS MBMS transmission of claim 7; It is characterized in that; When said N path loss gain gains more than or equal to the individual said merging of the N of correspondence respectively; Confirm that said one group of path loss gain satisfies MBMS and send demand, and select corresponding group of base stations to be combined in said idle TVWS and go up and send MBMS.
9. according to the said method of using the TVWS MBMS transmission of claim 7; It is characterized in that; After selecting group of base stations to be combined in the last MBMS of transmission of said idle TVWS, this method also comprises: generate the reprovision strategy of TVWS and MBMS, send to said base station with identical idle TVWS.
10. a device that uses the TVWS MBMS transmission is characterized in that, this device comprises:
First computing unit, calculating has in the base station of identical idle TVWS, and various group of base stations are combined in said idle TVWS and go up with respect to authorizing the path loss gain of sending MBMS on the frequency spectrum;
Second computing unit is used to calculate the path loss gain that can satisfy the MBMS transmission demand;
The reprovision unit is used to select the corresponding group of base stations of path loss gain of the said MBMS of satisfying transmission demand to be combined in upward MBMS transmission of said idle TVWS.
11. the device according to the said use of claim 10 TVWS MBMS transmission is characterized in that the combination of said base station comprises one or more base stations.
12. the device according to the said use of claim 11 TVWS MBMS transmission is characterized in that,
Said first computing unit also is used for the base station that calculates is sent to the inherent said mandate frequency spectrum of self coverage the maximum path loss of MBMS, deducts MBMS is sent in the base station that calculates on said TVWS maximum path loss, obtains said path loss and gains.
13. the device according to the said use of claim 12 TVWS MBMS transmission is characterized in that,
Said first computing unit also is used for the propagation model of confirming that said base station with identical idle TVWS is used between any two on said idle TVWS;
The maximum path loss of MBMS is sent in the base station that said first computing unit calculates on said TVWS, comprising: the maximum path loss that sends MBMS is gone up to the inherent said TVWS of self coverage in the base station that calculates; And/or on said TVWS, send the maximum path loss of MBMS between the base station that calculates according to said propagation model.
14. the device according to the said use of claim 13 TVWS MBMS transmission is characterized in that,
Said second computing unit also is used for calculation base station and is authorizing the merging gain of sending MBMS on the frequency spectrum; When said path loss gain during, confirm that said path loss gain satisfies MBMS and send demand more than or equal to said merging gain.
15. the device according to the said use of claim 14 TVWS MBMS transmission is characterized in that,
Said reprovision unit also is used for after having selected group of base stations to be combined on the said idle TVWS to send MBMS, generating the reprovision strategy of TVWS and MBMS, sends to said base station with identical idle TVWS.
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| CN201010555586.XA CN102480685B (en) | 2010-11-22 | 2010-11-22 | A kind of method and apparatus using TVWS MBMS transmission |
| PCT/CN2011/081195 WO2012068938A1 (en) | 2010-11-22 | 2011-10-24 | Method and device for mbms transmission using tvws |
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| CN201010555586.XA CN102480685B (en) | 2010-11-22 | 2010-11-22 | A kind of method and apparatus using TVWS MBMS transmission |
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Citations (3)
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| CN1326299A (en) * | 2000-03-01 | 2001-12-12 | 索尼公司 | TV signal distributor device, receiver device, transmitting system and method |
| CN101667960A (en) * | 2008-09-04 | 2010-03-10 | 中兴通讯股份有限公司 | Wireless access network system, terminal, data transmission method, and method for dispatching terminal |
| WO2010057086A2 (en) * | 2008-11-14 | 2010-05-20 | Microsoft Corporation | Channel reuse with cognitive low interference signals |
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| CN101132545B (en) * | 2006-08-24 | 2011-08-03 | 电信科学技术研究院 | Method and system for implementing multimedia broadcast multicast in mobile communication system |
| EP2068462A4 (en) * | 2006-09-26 | 2012-01-11 | Sharp Kk | Position managing device, mobile station device, base station device, frequency layer control method, program, and recording medium |
| CN101175297B (en) * | 2006-10-31 | 2010-12-08 | 大唐移动通信设备有限公司 | Resource allocation method and system for multimedia broadcasting service in 3G long-term evolution system |
| CN101466071B (en) * | 2007-12-17 | 2010-11-10 | 华为技术有限公司 | Method and apparatus for distributing time frequency resource |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1326299A (en) * | 2000-03-01 | 2001-12-12 | 索尼公司 | TV signal distributor device, receiver device, transmitting system and method |
| CN101667960A (en) * | 2008-09-04 | 2010-03-10 | 中兴通讯股份有限公司 | Wireless access network system, terminal, data transmission method, and method for dispatching terminal |
| WO2010057086A2 (en) * | 2008-11-14 | 2010-05-20 | Microsoft Corporation | Channel reuse with cognitive low interference signals |
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| VODAFONE GROUP: "《3GPP TSG-RAN WG4 Meeting #38 R4-060171》", 17 February 2006 * |
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| CN102480685B (en) | 2015-09-16 |
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