CN102769826A - Method and equipment for allowing UE (user equipment) to receive and receiving MBMS (multimedia broadcast multicast service) at UE - Google Patents
Method and equipment for allowing UE (user equipment) to receive and receiving MBMS (multimedia broadcast multicast service) at UE Download PDFInfo
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Abstract
The invention discloses a method and equipment for allowing UE (user equipment) to receive and receiving an MBMS (multimedia broadcast multicast service) at the UE. The UE has a carrier aggregation (CA) capability. The method for allowing the UE to receive the MBMS comprises the steps of: receiving an MBMS receiving request from the UE, wherein the MBMS receiving request at least comprises a service identification of the MBMS expected by the UE; responding to the MBMS receiving request of the UE and determining a cell suitable for receiving the expected MBMS by the UE; and configuring the determined cell to be an auxiliary cell of the UE so as to receive the expected MBMS in the auxiliary cell. According to the implementation manner disclosed by the invention, the UE with the CA capability is provided with the auxiliary cell, so that the aim of receiving the MBMS is achieved. Therefore, under the condition of being without influencing the previous service, one or more MBMS can be provided for the UE on one or more different component carriers which are different from the previous service, and furthermore, the meeting degree of the UE to the MBMS requirements is improved.
Description
Technical field
The present invention relates generally to multimedia broadcast-multicast service (MBMS) technology; Relate more particularly to a kind of professional method and apparatus of user equipment (UE) reception MBMS that is used to allow; And a kind of method and apparatus that is used for receiving at the UE place MBMS business, wherein said UE has carrier aggregation (CA) ability.
Background technology
Third generation partner program (3GPP) has defined the MBMS technology, is used for sending content of multimedia to big receiver set simultaneously.And 3GPP also announced the MBMS canonical collection, and it has covered this business is linked into content delivery applications and agreement from radio all aspects.In addition, in the follow-up evolution of 3GPP Long Term Evolution, introduced CA technology in (LTE-A), i.e. carrier aggregation technology, as a key property in the LTE-A standard, the CA technology is the most critical technology that is used to realize the 100000000 bandwidth operation of LTE-A system.According to the CA technology, can serve raising system operation bandwidth for UE jointly through several discrete frequency bands of polymerization.
In the enhancement mode MBMS of Rel11 (eMBMS),, need to consider that the MBMS under the CA receives problem from the purpose of business continuance.And, agreed unanimously that in the RAN2#73 meeting UE of the ability of CA and MBMS should can go up reception MBMS in the main plot of UE (PCell) at least.
Be known that UE all can receive the MBMS business in Multicast Broadcast Single Frequency Network (MBSFN).But, be a geographic concepts to the definition of the service area (SA) of MBMS, it has defined provides MBMS professional geographic area.And for the MBSFN zone definitions, it made up service area and frequency layer (or perhaps the component carrier under the CA) both.Thereby; In identical service area (identical geographic area), can be furnished with a plurality of component carriers, provide the non-MBSFN zone professional, the professional MBSFN zone of MBMS to be respectively and be contained in wherein each sub-district MBMS is provided professional and non-MBMS business through these component carriers with any MBMS is not provided.Usually, the different RRC in a service area connect subscriber equipment according to its separately channel condition and have different main plot (PCell).
Yet, have such situation, there is not the professional supply of MBMS on the PCell of some UE at all, in other words, it is arranged in does not provide any MBMS professional non-MBSFN zone.In this case, the MBMS business provides on other component carriers, and at this moment, it is professional that these UE just can not receive any MBMS.Yet, in the prior art still needleless to the solution of this problem.
For this reason, there is the active demand of the improvement technical scheme that receives to the MBMS business that is used for UE in the art.
Summary of the invention
In view of this, the invention discloses the professional technical scheme that receives of MBMS of a kind of UE of being used for, so that possibility is provided for solving or alleviating above-mentioned subproblem at least at least.
According to a first aspect of the invention, a kind of method that is used to allow user equipment (UE) receiving multimedia broadcast multicast service (MBMS) is provided, wherein this UE has the carrier aggregation ability.This method can comprise: receive from professional reception of the MBMS of this UE and ask, this MBMS business receives request and comprises the professional service identification of the desired MBMS of this UE at least; Ask in response to professional reception of the MBMS of this UE, receive the professional sub-district of its desired MBMS for this UE confirms to be suitable for it; And be the auxilliary sub-district of this UE with the cell configuration of confirming, so that this UE receives its desired MBMS business in said auxilliary sub-district.
According to an embodiment of the invention; The professional reception of this MBMS asks to comprise the precedence information of this UE of indication to the professional interest level of its desired MBMS; And wherein when confirming to be suitable for it for UE and receive the professional sub-district of its desired MBMS, be that UE confirms the sub-district further based on the professional precedence information of this MBMS.
According to another embodiment of the present invention, wherein, when confirming for UE to be suitable for its sub-district that receives its desired MBMS business, further wherein one or more confirm said sub-district for said UE based on the following: the carrier aggregation ability of this UE; The loading condition of candidate cell; And with the professional corresponding MBSFN area information of the MBMS of this UE expectation.
According to an execution mode more of the present invention, the professional reception of this MBMS asks to send to the base station through independent radio resources control RRC message.Alternatively, comprise the purpose designator in this RRC message, ask to be used to indicating this RRC message whether to be used for professional reception of said MBMS.
According to a second aspect of the invention, provide a kind of being used for to receive the professional method of MBMS at the UE place, wherein this UE has the carrier aggregation ability.This method can comprise: send professional reception of MBMS to the base station and ask, this MBMS business receives request and comprises the professional service identification of the desired MBMS of this UE at least; Receive the professional auxilliary community configured information that receives request to this MBMS; And based on auxilliary community configured information, obtain and be configured the MBMS related service information that receives the professional auxilliary sub-district of MBMS for this UE, so that it is professional in said auxilliary sub-district, to receive the MBMS of UE expectation.
According to a third aspect of the invention we, provide a kind of and be used to allow UE to receive the professional equipment of MBMS, wherein this UE has the carrier aggregation ability.This equipment can comprise: service request receiving system, configuration are used to receive from professional reception of the MBMS of said UE asks, and this MBMS business receives request and comprises the professional service identification of the desired MBMS of this UE at least; Device is confirmed in the sub-district, and configuration is used for asking in response to professional reception of the MBMS of said UE, receives the professional sub-district of its desired MBMS for said UE confirms to be suitable for it; And auxilliary cell configuration device, configuration is used for the auxilliary sub-district of the said cell configuration of confirming for this UE, and is professional so that said UE receives its desired MBMS in said auxilliary sub-district.
According to a forth aspect of the invention, provide a kind of being used for to receive the professional equipment of MBMS at the UE place, wherein said UE has the carrier aggregation ability.This equipment can comprise: service request dispensing device, configuration are used for sending the MBMS business to the base station and receive request, and professional reception of this MBMS asks to comprise at least the professional service identification of the desired MBMS of this UE; Configuration information receiving system, configuration are used to receive the professional auxilliary community configured information that receives request to this MBMS; And the business information deriving means, configuration is used for obtaining the MBMS related service information that is configured for the professional auxilliary sub-district of this UE reception MBMS based on said auxilliary community configured information, so that it is professional in said auxilliary sub-district, to receive the MBMS of UE expectation.
According to a fifth aspect of the invention, a kind of base station is provided, it comprises according to the described equipment of the aforementioned third aspect.
According to a sixth aspect of the invention, a kind of subscriber equipment is provided, it comprises according to the described equipment of aforementioned fourth aspect.
According to the embodiment of the present invention, a kind of professional technical scheme that receives of MBMS that is used to have the UE of CA ability is provided.According to the present invention, can assist the sub-district to be used to receive the professional purpose of MBMS for UE configuration with CA ability.Like this; Can allow in that former business has no under the situation of influence to it; While, for UE provides one or more MBMS professional, this further improved the satisfaction degree to the MBMS business demand of UE on one or more different component carriers different with former business.
Description of drawings
Through to combining the shown execution mode of accompanying drawing to be elaborated, above-mentioned and other characteristics of the present invention will be more obvious, and identical label is represented same or analogous parts in the accompanying drawing of the present invention.In the accompanying drawings:
Fig. 1 schematically show wherein can embodiment of the present invention exemplary environments;
Fig. 2 schematically shows the flow chart that is used to allow the professional method of UE reception MBMS according to an embodiment of the invention;
Fig. 3 A shows the flow chart that is used for assisting for the UE configuration according to the business reception requirement of UE the concrete realization of sub-district according to an embodiment of the invention;
Fig. 3 B shows the flow chart that is used for assisting for the UE configuration according to the business reception requirement of UE the concrete realization of sub-district according to another embodiment of the present invention;
Fig. 4 shows the flow chart that is used for receiving at the UE place the professional method of MBMS according to an embodiment of the invention;
Fig. 5 shows the block diagram that is used to allow the professional equipment of UE reception MBMS according to an embodiment of the invention; And
Fig. 6 shows the block diagram that is used for receiving at the UE place the professional equipment of MBMS according to an embodiment of the invention.
Embodiment
Before execution mode of the present invention is specifically described, at first carry out some necessary explanations.Flow chart shown in the drawings and block diagram are with in the cards architectural framework, function and the operation of diagram according to system, method and the program product of various embodiments of the invention.In this, each square frame in flow chart or the block diagram can be represented the part of module, block or a code, and the part of said module, block or code comprises one or more executable instructions that are used to realize the logic function stipulated.Should be noted that also the order that the function that is marked in the square frame also can be marked to be different from the accompanying drawing takes place in some realization as replacement.For example, in fact the square frame that two adjoining lands are represented can be carried out basically concurrently, and they also can be carried out by opposite order sometimes, and this decides according to related function.Also be noted that; Each square frame in block diagram and/or the flow chart and the combination of the square frame in block diagram and/or the flow chart; Can utilize the hardware based dedicated system of put rules into practice function or operation to realize, perhaps can use the combination of specialized hardware and instruction to realize.
Next, can be implemented on exemplary environments wherein with at first describing the present invention, so that those skilled in the art are clearer to applied environment of the present invention with reference to figure 1.
As shown in Figure 1, in service area (geographic area) 1, include the MBSFN zone 3 that the MBSFN of MBMS professional 1 zone 1 is provided, the professional non-MBSFN of any MBMS regional 2 is not provided and MBMS professional 2 is provided.Should be understood that service area 1 can comprise the MBSFN zone and/or the non-MBSFN zone of any amount, and is not limited in shown situation.Shown in the environment, sub-district 1 has constituted MBSFN zone 1 with sub-district 2, in this MBSFN zone 1, to the UE of the base station that is connected to sub-district 1 or sub-district 2 MBMS professional 1 is provided through component carrier 1.Sub-district 3 has constituted non-MBSFN zone 2, in this non-MBSFN zone 2, provides non-MBMS professional through component carrier 2 to the UE of the base station that is connected to sub-district 3, and does not provide any MBMS professional.Sub-district 4 has constituted MBSFN zone 3 with sub-district 5, in this MBSFN zone 3, to the UE of the base station that is connected to sub-district 4 or sub-district 5 MBMS professional 2 is provided through component carrier 3.Should be appreciated that in MBSFN zone or non-MBSFN zone, can comprise the sub-district of any amount, the UE of any amount can be served in each sub-district.In addition, need to prove, for the sake of clarity, also not shown in the drawings base station.
As shown in Figure 1, wherein UE 1 is connected to the base station of sub-district 3, and UE 2 is connected to the base station of sub-district 2, and two UE all have CA ability and MBMS receiving ability.This means that sub-district 3 is PCell of UE1, and sub-district 2 is PCell of UE2.Suppose that UE1 is receiving unicast service, but its expectation receives its interested MBMS business, for example MBMS professional 1 and/or MBMS professional 2; And UE2 is receiving MBMS business 1 now, but UE2 is also to MBMS professional 2 interested and expectation reception MBMS professional 2.
A kind of scheme of expecting easily that satisfies the MBMS business demand of UE1 and UE2 is that each UE that RRC is connected is directly switch to the sub-district that corresponding MBMS business is provided, and promptly directly UE1 and UE2 is switched to and can expectation MBMS be provided professional sub-district for it.Yet the inventor finds that this scheme has some problems.
At first, this switching receives purpose for MBMS is professional and carries out, rather than because actual mobility or channel quality change.Therefore, the mobility of this UE no thanks to or channel quality change and the switching of execution, will certainly influence the signal quality of original unicast service.
Secondly, switching is by network control, and handover candidate cells must satisfy certain signal quality demand (this is measured by UE and reports according to certain criteria).Yet be known that; Handover measurement is based on the Reference Signal Received Power RSRP that UE detects; And the angle that transmits from MBSFN, because the SFN portfolio premium judges that to the professional channel quality that receives of MBMS will be different from the channel quality that unicast service is received judges.Therefore, be merely the switching that receives the MBMS business and carry out and guarantee that it is feasible as the Target cell that UE switches that the sub-district of MBMS business is provided.This meaning, this switching meeting exerts an influence to original unicast service.In addition, directly switching can cause UE to interrupt the professional reception of MBMS to providing in the former sub-district, says nothing of and satisfies UE simultaneously to being in professional this problem of demand of a plurality of MBMS in the different MBS FN zone.
Just for the above reasons, switch this scheme and be not suitable for solving foregoing problems.The inventor has proposed a kind of professional technical scheme that receives to the MBMS of the UE with carrier aggregation ability that is used in this patent application for this reason.
As previously mentioned, in LTE-A, introduced the CA technology, according to this technology, can be through several discrete frequency bands of polymerization jointly for the UE with CA ability provides service, so that raising system operation bandwidth.In the prior art, carrier aggregation is that the base station independently determines based on the current working condition of UE, and the sub-district will be assisted to be used for the current business that is receiving for the UE configuration in the base station.Thereby improve the reception bandwidth of UE.
Find after the further investigation of the applicant's process,, it is contemplated that through distributing suitable auxilliary sub-district so that its desired MBMS of reception is professional in auxilliary sub-district for UE in view of the UE with CA ability can receive business the while in a plurality of sub-districts.Just be based on these basic ideas; The inventor has proposed a kind of professional method and apparatus of UE reception MBMS that is used to allow to have the carrier aggregation ability in this application; And a kind of method and apparatus that is used for receiving at the UE place MBMS business, this will carry out detailed description referring to figs. 2 to Fig. 6 hereinafter.
At first with reference to figure 2, this Fig. 2 shows the flow chart that receives the professional method of MBMS according to the UE that is used to allow to have the carrier aggregation ability of an embodiment of the invention.
As shown in Figure 2, at first at step S201, receive from professional reception of the MBMS of UE and ask, this MBMS business receives request and comprises the professional service identification of the desired MBMS of this UE at least.
The professional reception of this MBMS asks the professional interest of MBMS independently to be initiated according to it by UE.Can make UE can obtain to be arranged in the MBMS business information of one or more sub-districts in identical services zone (geographic area) through variety of way with its affiliated subdistrict.For example, can in MBMS control channel MCCH message, increase new cell, the base station in each sub-district utilizes this cell to come the UE in service district to send MBMS business information and the respective cell id information that it provided.Like this each UE just can through read this new cell in the MCCH message obtain with this service area in the MBMS business of other sub-districts situation is provided.According to disclosing here, those skilled in the art can realize that fully UE provides obtaining of situation to the MBMS business of neighbor cell, therefore, repeats no more here.In addition; About obtaining the professional exemplary concrete realization of MBMS that other sub-districts provide; The one Chinese patent application of can the REFERENCE TO RELATED people submitting to China national Department of Intellectual Property on April 4th, 2011; Its application number is 201110085886.0, and denomination of invention is " method and apparatus that sends and receive the MBMS service related information ", by reference its integral body is incorporated into this here.
Like this, UE can select the MBMS of its expectation professional from various MBMS business according to the interest of oneself, and will send professional reception of MBMS to UE and ask.For making the base station can understand the MBMS demand of UE, the professional reception of the MBMS that UE sends should comprise at least in the request that this UE expectation receives the professional service identification of MBMS of (interested).
This MBMS is professional to be received request and can send to the base station based on RRC message independently.For this reason, for example can define new RRC message asks to be used to sending professional reception of MBMS.For purposes of illustration, provided the professional instance that receives request message of MBMS of redetermination below.Yet need to prove that this is exemplary, those skilled in the art also can design different form of message according to the instruction here.
The professional instance that receives request message of MBMS
Need to prove; In the instance of the professional reception request of shown MBMS; In the MBMS service lists, the professional expression, can also comprise the precedence information of this UE of reflection in the request professional reception of MBMS, but this precedence information is an optional information to the professional interest level of MBMS.For the UE in the service district, it maybe be interested in a plurality of MBMS business simultaneously, and all candidate cells possibly be able to not satisfy all business demands of UE.To this situation, if UE can provide indication its precedence information to the professional interest level of each MBMS, this will be useful.Yet those skilled in the art will be understood that also the base station also can be come for the UE selection needs satisfied business demand randomly or according to other pre-defined rules, and precedence information that need not be such.And the user only under the professional interested situation of a MBMS, also need not such precedence information.
The MBMS that provides in the above is professional to be received in the instance of asking, and represent precedence information through the mode of showing clearly, yet the present invention is not limited thereto, also can adopt implicit mode to represent precedence information.Being used to indicate this UE can be the priority value indication (showing mode clearly) that particularly points out each professional priority to the precedence information of the professional interest level of MBMS, also can come impliedly to indicate each professional priority value indication (implicit mode) through the order of each business in service lists.When carrying out the Target cell decision-making like this in the base station, can farthest consider the interest of UE, and it is professional only to allow UE can accept the higher MBMS of priority.
In addition, also can comprise in the request and the professional corresponding MBSFN area information of said MBMS professional reception of MBMS so that UE is when carrying out the Target cell decision-making, can be as far as possible for UE select comprise the sub-district in the MBSFN zone that the interest of business and UE meets most.Yet, need to prove that base station itself also can obtain the MBSFN area information, promptly the base station can accept request according to the MBMS business of UE report, obtains the corresponding MBMS area information with the professional UE of its interested MBMS.Therefore, consider in this sense, UE in fact also can send it understand the MBSFN area information.
In addition, UE also can send professional reception of MBMS through other modes and ask, rather than MBMS is professional to receive purpose and newly-built RRC message through aiming at.For example, consider the MBMS business continuance when UE switches, UE need send to the base station with the professional accepting state of the MBMS of UE, this for example can through one independently the professional receiving state report RRC of MBMS message send to the base station.In this MBMS receiving state report RRC message, need the information of carrying comprise MBMS service identification, optional precedence information, optional MBSFN area information etc., the information that itself and the professional reception of MBMS need be carried in asking is roughly the same.For this reason, the professional transmission that receives request of MBMS can be considered the message by means of the professional receiving state report RRC of this MBMS.Detail about the technical scheme of the professional receiving state report of this MBMS; Can the REFERENCE TO RELATED people be the one Chinese patent application of " method and apparatus of initiating the professional receiving state report of MBMS ", by reference its integral body is incorporated into this here in the denomination of invention of submitting to China national Department of Intellectual Property on the same day.
For can be by means of the professional receiving state report message of this MBMS; Can consider in this report increases a purpose designator, so that indicate this message to be used for the purpose of the professional receiving state report of MBMS or be used for the professional purpose that receives request (sub-district switching) of MBMS.For purposes of illustration, provided the professional receiving state report message of MBMS of an exemplary modification hereinafter.
The instance of the professional receiving state report of the MBMS that revises
Wherein show modification to the professional receiving state report of MBMS that is used to switch purpose with black font.Through such modification, just can the professional receiving state report of this MBMS be used for the professional purpose that receives request of MBMS.Be 1 (promptly for example in the value of message purpose designator " handoverIndicator "; For true) time; Indicating this message is the professional receiving state report of MBMS that is used to switch purpose; And the value of working as " handoverIndicator " is when being 0 (that is, being vacation), indicates this message to be that the MBMS of UE is professional and receives request.
Like this, through above-mentioned exemplary approach, just can professional reception of the MBMS of the MBMS business information that comprises the UE expectation at least be asked to send to the base station.
Then, can ask in response to professional reception of the MBMS of this UE, receive the professional sub-district of its desired MBMS for this UE confirms to be suitable for it at step S202.
As previously mentioned, can comprise one or more MBSFN zones that are used to provide one or more MBMS business, comprise some sub-districts again in each MBSFN zone at same service area.Thereby, can ask based on professional reception of the MBMS of UE, in these sub-districts,, UE receives the professional sub-district of its desired MBMS for confirming to be suitable for it.
With in tradition, dispose from bandwidth strengthens purpose auxilliary sub-district different be; When confirming to be suitable for the sub-district of this UE; Base station eNB need not considered the Reference Signal Received Power RSRP report of UE about other carrier cells; This is because for the MBSFN transmission, and it is enough good for the professional reception of MBMS to suppose at the signal quality that has the SFN portfolio premium in the individual zone.
In the sub-district of confirming to be suitable for UE, whether eNB at first checks can provide the desired MBMS of UE professional sub-district, be to belong to the component carrier sub-district of being controlled by this base station with definite these sub-districts, if can not, then can abandon this sub-district.
The base station can also be preferably UE in the professional priority that receives indication in the request of MBMS according to UE and select to satisfy the professional sub-district of the higher MBMS of priority when confirming appropriate cell for UE.In addition, the base station is the ability that number of cells that UE distributes can not exceed the CA of UE.Therefore, the CA ability of UE also can be considered in the base station when confirming candidate cell.Exceed at the number of candidate target cells under the situation of CA ability of UE, for example, the precedence information that can provide according to UE, the preferential higher sub-district of MBMS service priority that provides selected.
In addition, also can consider the loading condition of candidate cell.For example, the minimum sub-district of load can be preferentially selected, optimizing resource allocation can be realized like this existing a plurality of sub-districts can provide under the professional situation of the MBMS of UE expectation.
In addition, it is also conceivable that and each professional corresponding MBSFN zone.Seeing that the CA ability of UE is limited,, then pay the utmost attention to the sub-district of selecting in this MBSFN zone in a MBSFN zone if therefore a plurality of MBMS business of user expectation provide.
Start from the consideration of the CA ability of UE, professional to each MBMS that UE requires, only be required to be this UE and select a sub-district professional to be used for this MBMS.Even in same MBSFN zone, have the business of a plurality of UE of satisfying expectations, also only be required to be this UE and select one of them sub-district, and needn't be that this UE selects different districts to different MBMS business.But if a plurality of MBMS business providing on different carrier that the UE expectation receives, this will cause need be for UE selects a plurality of sub-districts, and this can not surpass the CA ability of UE certainly.
Thereby; When selecting to be suitable for the sub-district of its desired MBMS business of UE reception, the professional precedence information of the interested MBMS of UE, professional MBSFN area information, the CA ability of UE and the loading condition of candidate cell of each interested MBMS are preferably synthetically considered in the base station.In addition, consider the MBSFN portfolio premium, the signal quality measured RSRP of original channel can be ignored in the base station when the cell selecting that receives to MBMS.
Then, can be the auxilliary sub-district of this UE with the cell configuration of confirming, so that said UE receives its desired MBMS business in said auxilliary sub-district at step S203.
After having confirmed that finally being suitable for this UE receives the professional sub-district of its desired MBMS, can be the auxilliary sub-district of this UE with the cell configuration of confirming.As carry out auxilliary cell configuration in the prior art for bandwidth strengthens purpose, the base station can generate RRC and reshuffle signaling and this signaling is sent to the base station.Reshuffle at this RRC and to comprise auxilliary community configured information in the signaling, to dispose the frequency resource information which assists sub-district and these auxilliary sub-districts for it to UE indication base station.This is known to those skilled in the art, repeats no more here.
Next, will be the instance of the concrete realization of the auxilliary sub-district of UE configuration with reference to the MBMS business need that figure 3A and Fig. 3 B describe according to the embodiment of the present invention according to UE.
At first with reference to figure 3A, this Fig. 3 A shows the flow chart that is used for assisting for the UE configuration according to the business reception requirement of UE the concrete realization of sub-district according to an embodiment of the invention.
Shown in Fig. 3 A, at first at step S301, the professional reception of MBMS that receives UE asked.Then,, obtain each MBSFN zone with the desired MBMS business of UE in response to the MBMS service request of UE at step S302, and to each MBSFN zone executable operations.Particularly, at step S303, search all the available candidate sub-districts in this MBSFN zone.At step S304, if whether the number of cells of confirming candidate cell set greater than 1, then proceeds to step S305 greater than 1 then, searches the minimum sub-district of load in the candidate collection, and this method gets into step S306 then.In addition, if be not more than 1, then directly enter to step S306 at definite number of cells of step S304.At step S306, determine whether to search to all MBSFN zones, if not, then be back to step S302, continue next MBSFN zone executable operations; If then this method continues to step S307.
At step S307, generate candidate cell collection to this UE, this candidate cell collection is included in the candidate cell in the possible MBSFN zone of institute that abovementioned steps searches.Then, at step S308, whether the number of cells of confirming candidate cell set greater than the CA ability of UE, if greater than, then at step S309, satisfying the candidate cell of the CA ability of UE according to service priority Information Selection number, this method gets into step S310 then; If be not more than, then this method directly enters to step S310.At step S310, generate final auxilliary cell configuration decision-making cell set.Then,, generate the RRC signaling that is used for auxilliary cell configuration, and send it to UE at step S311, professional so that UE can receive its desired MBMS in the auxilliary sub-district that is its configuration.
Then will introduce another alternate embodiments with reference to figure 3B, this Fig. 3 B also illustrates the flow chart that is used for assisting for the UE configuration according to the business reception requirement of UE the concrete realization of sub-district according to another embodiment of the present invention.Different with Fig. 3 A is; This method is sent the professional reception request of MBMS by means of MBMS business receiving state report rather than the newly-built professional request RRC message that receives of MBMS; For this reason, the method shown in Fig. 3 B comprises step S301a and S301b, rather than step S301.Shown in Fig. 3 B; At first receive the professional receiving state report of MBMS, confirm that at step S301b whether the purpose designator that comprises in this report indicates this report is to be used for professional reception of MBMS to ask then, if not at step S301a; Then directly finish this method, if then get into step S302.Step S302 with and subsequent operating procedure S303 to S311 with identical shown in Fig. 3 A, repeat no more here.
Need to prove that Fig. 3 A and Fig. 3 B indicate the instance of concrete realization of the present invention, according to disclosing here; Those skilled in the art will dream up different with it realizations; For example when carrying out configuration decisions, consider more or factor still less etc., yet these all within the scope of the invention.
Through top description, can find out according to above-mentioned execution mode of the present invention, provide a kind of through allowing it to receive the professional technical scheme of MBMS for the auxilliary sub-district of UE configuration with CA ability.Like this, can allow at UE on the one or more different component carriers different, one or more MBMS business to be provided simultaneously in that former business has no under the situation of influence to it for UE with former business.Therefore, this has further improved the satisfaction degree to the MBMS business demand of UE.
In addition, Fig. 4 also shows the flow chart that is used for receiving at the UE place the professional method of MBMS according to an embodiment of the invention.
As shown in Figure 4, at first at step S401, to send professional reception of MBMS to the base station and ask, this MBMS business receives request and comprises the professional service identification of the desired MBMS of this UE at least.
Described when receiving MBMS business reception request like preceding combination Fig. 2 to the base station, UE will independently initiate the professional reception of this MBMS and ask the professional interest of MBMS according to it.At first, can make UE can obtain to be arranged in the MBMS business information of one or more sub-districts in identical services zone (geographic area) through variety of way with its affiliated subdistrict.For example, can in MBMS control channel MCCH message, increase new cell, the base station utilizes this cell to come the UE in service district to send MBMS business information and the respective cell id information that it provided.Each UE just can provide situation through reading the MBMS business that this new cell in the MCCH message obtains other sub-districts in this service area like this.Like this; UE just can select the MBMS of its expectation professional from the various MBMS business that it can be known according to the interest of oneself; And send professional reception of MBMS to UE and ask, the professional professional service identification of MBMS that should comprise this UE expectation reception (interested) in the request at least that receives of this MBMS.In addition, UE maybe be interested in a plurality of MBMS business simultaneously, and all candidate cells possibly be able to not satisfy all business demands of UE.Therefore, to this situation, the professional reception of the MBMS of UE preferably includes the precedence information of UE to the professional interest level of each MBMS in the request
As previously mentioned, this MBMS is professional receives request and can send to the base station based on RRC message independently.Therefore, can define new RRC message asks to be used to sending professional reception of MBMS.The professional instance that receives request message of the MBMS of redetermination illustrates hereinbefore, repeats no more here.
In addition, UE also can send professional reception of MBMS through other modes and ask, rather than MBMS is professional to receive purpose and newly-built RRC message through aiming at.For example, the professional transmission that receives request of MBMS can be considered the message by means of the professional receiving state report RRC of the MBMS that describes in the preceding text.In this case, can consider in this report increases a purpose designator, so that indicate this message to be used for the purpose of professional receiving state report or be used for the professional purpose that receives request.
Then, can receive the professional auxilliary community configured information that receives request at step S402 to this MBMS.After UE equipment sent the professional reception request of this MBMS, the base station will be the auxilliary sub-district of its configuration, and reshuffled in the signaling at for example RRC, will assist community configured information and send to UE, so that allow the auxilliary sub-district of UE utilization to receive the MBMS business.
Because conventional auxilliary cell configuration is normally determined by the base station; Therefore RRC reshuffle signaling time of advent for UE with being uncertain; And the professional purpose RRC that receives of MBMS reshuffles signaling and is in response to that the MBMS of UE is professional to be received request and issue; This is foreseeable as far as UE, so UE can tell this RRC and reshuffles signaling and whether be used for that MBMS is professional to be received.Certainly, for the purpose of clear and definite, the base station can comprise therein when generation RRC reshuffles signaling that also this auxilliary community configured information is used for the professional reception of MBMS or the designator of common auxilliary cell configuration.
Then,, obtain and be configured the MBMS related service information that receives the professional auxilliary sub-district of MBMS for this UE, so that it is professional in said auxilliary sub-district, to receive the MBMS of UE expectation based on said auxilliary community configured information at step S403.
The MBMS that UE will receive in other sub-districts is professional, then need read in the MBMS related service information in the chain of command of respective secondary sub-district, comprises relevant configuration information and the MCCH message of MBMS in all system information blocks.As previously mentioned, in auxilliary community configured information, include auxilliary sub-district and auxilliary cell frequency information, based on these information, UE just can be connected to these auxilliary sub-districts, and gets access to the system information that send the base station of assisting the sub-district.From system information, can obtain the professional required MBMS related service information that this sub-district provides that receives.These information can be obtained in system information block SIB2 and SIB13, comprising MBSFN sub-frame allocation situation, MCCH configuration information etc. are arranged, wherein utilize the MCCH configuration information can obtain MCCH message.Need to prove, can be only will receive the MBMS of its expectation really when professional, just obtain the MBMS service related information of auxilliary sub-district, and need not to obtain at once when assisting community configured information receiving at UE.
Like this, UE just can receive MBMS in the auxilliary sub-district that is its configuration professional, and can not have any impact to original business.In addition, UE not only can receive the MBMS business of its expectation simultaneously in main plot and auxilliary sub-district, and it is professional also can in a plurality of auxilliary sub-districts, to receive a plurality of MBMS simultaneously.Thereby this higher degree ground has satisfied UE to the professional demand of MBMS.
In addition, the present invention also provides a kind of and has been used to allow UE to receive the equipment of MBMS business and the equipment that is used for receiving at the UE place MBMS business, and this will describe with reference to figure 5 and Fig. 6 hereinafter.
With reference to figure 5, Fig. 5 shows the block diagram that is used to allow the professional equipment of UE reception MBMS according to an embodiment of the invention.As shown in Figure 5, said equipment 500 comprises: device 502 and auxilliary cell configuration device 503 are confirmed in service request receiving system 501, sub-district.This service request receiving system 501 can be arranged to reception and ask from professional reception of the MBMS of UE, and wherein the professional reception request of this MBMS comprises the professional service identification of the desired MBMS of this UE at least.This sub-district confirms that device 502 can be arranged to the professional reception request in response to the MBMS of UE, receives the professional sub-district of its desired MBMS for UE confirms to be suitable for it.Should can be arranged to the auxilliary sub-district of the said cell configuration of confirming by auxilliary cell configuration device 503 for this UE, professional so that this UE receives its desired MBMS in said auxilliary sub-district.
In one embodiment according to the present invention, the professional reception of this MBMS asks also to comprise the precedence information of this UE of indication to the professional interest level of its desired MBMS.Like this, the sub-district is confirmed that device 502 can dispose and is used for when confirming to be suitable for it for UE and receive the professional sub-district of its desired MBMS, further confirming the sub-district based on the professional precedence information of this MBMS for this UE.Alternatively; Said sub-district confirms that device 502 can dispose and is used for when confirming to be suitable for it for said UE and receive the professional sub-district of its desired MBMS that further wherein one or more confirm said sub-district for said UE based on the following: the carrier aggregation ability of said UE; The loading condition of candidate cell; And with the professional corresponding MBSFN area information of the MBMS of said UE expectation.
In according to another embodiment of the present invention, the professional reception of this MBMS asks to send to the base station through independent radio resources control RRC message.Alternatively, comprise the purpose designator in this RRC message, ask to be used to indicating this RRC message whether to be used for professional reception of said MBMS.
Next will describe the equipment that is used for receiving at the UE place MBMS business with reference to figure 6, this Fig. 6 shows the block diagram that is used for receiving at the UE place the professional equipment of MBMS according to an embodiment of the invention.As shown in Figure 6, this equipment 600 comprises service request dispensing device 601, configuration information receiving system 602 and business information deriving means 603.Wherein, service request dispensing device 601 can be arranged to the base station and send the professional reception request of MBMS, and this MBMS business receives the service identification that request comprises the MBMS business that this UE is desired at least; Configuration information receiving system 602 can be arranged to and receive the professional auxilliary community configured information that receives request to this MBMS; And business information deriving means 603 can be arranged to obtain based on said auxilliary community configured information and be configured the MBMS related service information that receives the professional auxilliary sub-district of MBMS for this UE, so that it is professional in said auxilliary sub-district, to receive the MBMS of UE expectation.
In one embodiment according to the present invention, the professional reception of this MBMS asks may further include the precedence information of this UE of indication to the professional interest level of its desired MBMS.
In according to another embodiment of the present invention, the professional reception of this MBMS asks to be sent to the base station through an independent radio resources control RRC message.Alternatively, comprise the purpose designator in this RRC message, ask to be used to indicating this RRC message whether to be used for professional reception of MBMS.
In an execution mode more according to the present invention, said business information deriving means 403 only can be arranged at UE will receive the MBMS of UE expectation when professional really, just obtains the MBMS service related information of said auxilliary sub-district.
Need to prove, be corresponding with reference to the operation of the operation of figure 5 and the described equipment 500 of Fig. 6 and each parts of 600 and each step of method described in the preceding text basically, so about the concrete operations of these parts.Can be with reference to combining the specific descriptions of Fig. 2 to Fig. 4 in the preceding text to method of the present invention.
In addition, the invention provides a kind of base station, it comprises aforementioned according to the equipment that is used to allow UE reception MBMS business of the present invention, and for example equipment 500.
The present invention also provides a kind of subscriber equipment, and it comprises aforementioned according to the equipment that is used for receiving at the UE place MBMS business of the present invention, and for example equipment 600.
Need to prove; Invention has been described to combine the execution mode of the current consideration of the inventor hereinbefore; Yet the present invention is not limited thereto, and art technology technical staff can carry out various modifications to it according to instruction of the present invention; For example receive its desired MBMS when professional confirming to be suitable for it for UE, and can consider more or factor still less.
In addition, need to prove that execution mode of the present invention can be realized with the combination of software, hardware or software and hardware.Hardware components can utilize special logic to realize; Software section can be stored in the memory, and by suitable instruction execution system, for example microprocessor or special designs hardware are carried out.Those having ordinary skill in the art will appreciate that can use a computer executable instruction and/or be included in the processor control routine of above-mentioned method and system realizes, for example provides such code on such as the mounting medium of disk, CD or DVD-ROM, such as the programmable memory of read-only memory (firmware) or the data medium such as optics or electronic signal carrier.The system of present embodiment and assembly thereof can by such as very lagre scale integrated circuit (VLSIC) or gate array, such as the semiconductor of logic chip, transistor etc., or realize such as the hardware circuit of the programmable hardware device of field programmable gate array, programmable logic device etc.; Also can use the software of carrying out by various types of processors to realize, also can by the combination of above-mentioned hardware circuit and software for example firmware realize.
Though described the present invention, should be appreciated that to the invention is not restricted to disclosed execution mode with reference to the execution mode of considering at present.On the contrary, the present invention is intended to contain included various modifications and equivalent arrangements in spirit and the scope of accompanying claims.The scope of following claim meets broad interpretation, so that comprise all such modifications and equivalent structure and function.
Claims (22)
1. method that is used to allow user equipment (UE) receiving multimedia broadcast multicast service (MBMS), wherein said UE has the carrier aggregation ability, and said method comprises:
Reception is asked from professional reception of the MBMS of said UE, and the professional reception request of this MBMS comprises the professional service identification of the desired MBMS of this UE at least;
Ask in response to professional reception of the MBMS of said UE, receive the professional sub-district of its desired MBMS for said UE confirms to be suitable for it; And
With the said cell configuration of confirming is the auxilliary sub-district of this UE, professional so that said UE receives its desired MBMS in said auxilliary sub-district.
2. method according to claim 1; Wherein, The professional reception of said MBMS asks to comprise the precedence information of this UE of indication to the professional interest level of its desired MBMS; And wherein when confirming to be suitable for it for said UE and receive the professional sub-district of its desired MBMS, be that said UE confirms the sub-district further based on the professional precedence information of this MBMS.
3. method according to claim 1 and 2, wherein, when confirming for said UE to be suitable for its sub-district that receives its desired MBMS business, further wherein one or more confirm said sub-district for said UE based on the following:
The carrier aggregation ability of said UE;
The loading condition of candidate cell; And
With professional corresponding Multicast Broadcast Single Frequency Network (MBSFN) area information of the MBMS of said UE expectation.
4. method according to claim 1, wherein, the professional reception of said MBMS asks to send to the base station through independent radio resources control RRC message.
5. method according to claim 4 wherein, comprises the purpose designator in the said RRC message, asks to be used to indicating this RRC message whether to be used for professional reception of said MBMS.
6. method that is used for receiving multimedia broadcast multicast service (MBMS) at the user equipment (UE) place, wherein said UE has the carrier aggregation ability, and said method comprises:
Send professional reception of MBMS to the base station and ask, this MBMS business receives request and comprises the professional service identification of the desired MBMS of this UE at least;
Receive the professional auxilliary community configured information that receives request to this MBMS; And
Based on said auxilliary community configured information, obtain and be configured the MBMS related service information that receives the professional auxilliary sub-district of MBMS for this UE, so that it is professional in said auxilliary sub-district, to receive the MBMS of UE expectation.
7. method according to claim 6, wherein, the professional reception of said MBMS asks to comprise the precedence information of this UE of indication to the professional interest level of its desired MBMS.
8. method according to claim 6, wherein, the professional reception of said MBMS asks to be sent to the base station through an independent radio resources control RRC message.
9. method according to claim 8 wherein, comprises the purpose designator in the said RRC message, asks to be used to indicating this RRC message whether to be used for professional reception of MBMS.
10. method according to claim 6 wherein, only when UE will receive the MBMS business of its expectation really, is just obtained the MBMS service related information of said auxilliary sub-district.
11. an equipment that is used to allow user equipment (UE) receiving multimedia broadcast multicast service (MBMS), wherein said UE has the carrier aggregation ability, and said equipment comprises:
Service request receiving system, configuration are used to receive from professional reception of the MBMS of said UE asks, and this MBMS business receives request and comprises the professional service identification of the desired MBMS of this UE at least;
Device is confirmed in the sub-district, and configuration is used for asking in response to professional reception of the MBMS of said UE, receives the professional sub-district of its desired MBMS for said UE confirms to be suitable for it; And
Auxilliary cell configuration device, configuration are used for the auxilliary sub-district of the said cell configuration of confirming for this UE, and be professional so that said UE receives its desired MBMS in said auxilliary sub-district.
12. equipment according to claim 11; Wherein, The professional reception of said MBMS asks to comprise the precedence information of this UE of indication to the professional interest level of its desired MBMS; And wherein said sub-district confirms that device configuration is used for when confirming to be suitable for it for said UE and receive the professional sub-district of its desired MBMS, is that said UE confirms the sub-district based on the professional precedence information of this MBMS further.
13. according to claim 11 or 12 described equipment; Wherein, Said sub-district confirms that the device configuration is used for when confirming for said UE to be suitable for its sub-district that receives its desired MBMS business, and further wherein one or more confirm said sub-district for said UE based on the following:
The carrier aggregation ability of said UE;
The loading condition of candidate cell; And
With professional corresponding Multicast Broadcast Single Frequency Network (MBSFN) area information of the MBMS of said UE expectation.
14. equipment according to claim 11, the professional reception of wherein said MBMS asks to send to the base station through independent radio resources control RRC message.
15. equipment according to claim 14 comprises the purpose designator in the wherein said RRC message, asks to be used to indicating this RRC message whether to be used for professional reception of said MBMS.
16. an equipment that is used for the receiving multimedia broadcast multicast service (MBMS) at the user equipment (UE) place, wherein said UE has the carrier aggregation ability, and said equipment comprises:
Service request dispensing device, configuration are used for sending the MBMS business to the base station and receive request, and professional reception of this MBMS asks to comprise at least the professional service identification of the desired MBMS of this UE;
Configuration information receiving system, configuration are used to receive the professional auxilliary community configured information that receives request to this MBMS; And
Business information deriving means, configuration are used for obtaining the MBMS related service information that is configured for the professional auxilliary sub-district of this UE reception MBMS based on said auxilliary community configured information, so that it is professional in said auxilliary sub-district, to receive the MBMS of UE expectation.
17. equipment according to claim 16, the professional reception of wherein said MBMS asks to comprise the precedence information of this UE of indication to the professional interest level of its desired MBMS.
18. equipment according to claim 16, the professional reception of wherein said MBMS asks to be sent to the base station through an independent radio resources control RRC message.
19. equipment according to claim 18 comprises the purpose designator in the wherein said RRC message, asks to be used to indicating this RRC message whether to be used for professional reception of MBMS.
20. equipment according to claim 16, wherein, the configuration of said business information deriving means only is used for will receiving the MBMS of UE expectation really when professional at UE, just obtains the MBMS service related information of said auxilliary sub-district.
21. a base station, it comprises according to power and requires each described equipment in 11 to 15.
22. a subscriber equipment, it comprises according to each described equipment in the claim 16 to 20.
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| CN201110114738.7A CN102769826B (en) | 2011-05-02 | 2011-05-02 | Method and equipment for allowing UE (user equipment) to receive and receiving MBMS (multimedia broadcast multicast service) at UE |
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| CN201110114738.7A CN102769826B (en) | 2011-05-02 | 2011-05-02 | Method and equipment for allowing UE (user equipment) to receive and receiving MBMS (multimedia broadcast multicast service) at UE |
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| CN102769826B (en) | 2015-07-15 |
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