CN102340744B - Method and system for transmitting multimedia broadcast multicast service (MBMS) access probability factor - Google Patents
Method and system for transmitting multimedia broadcast multicast service (MBMS) access probability factor Download PDFInfo
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Abstract
The invention discloses a method and a system for transmitting a multimedia broadcast multicast service (MBMS) access probability factor. The method comprises that: a network side bears access probability factor (PF) information at a position corresponding to PF information position information for identifying the bearing position of the PF information for transmission, wherein the PF information is not born in a multicast control channel (MCCH). By the method provided by the invention, the PF information is not born in the MCCH for transmission, so the influence of updating incapability of the MCCH in an MCCH modification period on the fast variability of the PF information in long term evolution (LTE) is avoided, and the accurate implementation of a mechanism for counting the receiving conditions of a certain MBMS on a user side by the network side is ensured.
Description
Technical field
The present invention relates to the statistical technique in multimedia broadcast multi-broadcasting business (MBMS, Multimedia Broadcast MulticastService) technology, espespecially a kind of method and system sending MBMS access probability factor.
Background technology
Along with the fast development of the Internet and the universal of large-screen multi-functional mobile phone, a large amount of Mobile data multimedia service and various high bandwidth multimedia service are there is, such as: video conference, television broadcasting, video request program, video ads, online education, interactive game etc.These Mobile data multimedia services and various high bandwidth multimedia service, not only meet the business demand that mobile subscriber constantly rises, simultaneously also for mobile operator brings new business growth point.These Mobile data multimedia services and the multiple user of various high bandwidth multimedia service requirements can receive identical data simultaneously, compared with general data service, have the features such as data volume is large, duration length, delay sensitive.
In order to effectively utilize mobile network resource, third generation partner program (3GPP, 3rd GenerationPartnership Project) propose multimedia broadcast multi-broadcasting business (MBMS, Multimedia BroadcastMulticast Service), MBMS is a kind of technology transmitting data from a data source to multiple target, achieve sharing of network (comprising core net and Access Network) resource, improve the utilance of Internet resources (especially air interface resource).The MBMS of 3GPP definition can not only realize multicast and the broadcast of the classes of messages of plain text low rate, broadcast and the multicast of high-speed multimedia service can also be realized, multiple abundant video, audio frequency and multimedia service are provided, this has complied with the trend of following Mobile data development undoubtedly, for the development of the third generation (3G, 3rd Generation) digital communication provides better business prospect.
In MBMS technology, there is one for network side statistics for the mechanism of a certain MBMS in the reception condition of subscriber equipment (UE, User Equipment) side.In the MBMS statistic processes of current mechanism, statistical information (as by the MBMS information of adding up) and access probability factor (Accessprobability factor, hereinafter referred to as PF) information is two main statistical informations, they are carried in same information unit and send to UE simultaneously, wherein, the setting of PF information mainly in order to prevent a large amount of UE from participating in uplink feedback simultaneously, thus causes the anxiety of ascending resource.Such as, the MBMS information and PF information that need statistics are carried on information unit as in MBMS access information (MBMS ACCESSINFORMATION) simultaneously, and this information unit sends to UE by multicast control channel (MCCH, MulticastControl Channel).
In prior art, the mechanism of MCCH allows partial information to occur to upgrade within the MCCH amendment cycle, such as, allowing the MBMS ACCESS INFORMATION in MCCH to upgrade, is that the PF information in MBMS ACCESS INFORMATION there occurs change in reality.Like this, current mechanism is the fast more new demand that can meet PF information, thus statistical information can be placed on PF information together with after be unified in MCCH and send.
Above-mentioned prior art refers to the regulation of the R6/R7 standard agreement version of 3GPP.
But, at Long Term Evolution (LTE, Long Term Evolution) in, the current regulation about MCCH unlike the prior art, LTE regulation MCCH can not upgrade within a MCCH amendment cycle, that is, in LTE, the PF information be carried in MCCH can not change within a MCCH amendment cycle.Further, in LTE, above-mentioned statistical information is also not necessarily carried on MCCH and sends.
And in two statistical informations main in statistic processes, the period of change of PF information is far smaller than MCCH and revises the cycle, relatively slower by the MBMS information change added up, change hardly in a measurement period; PF information change, than very fast, needs to send repeatedly PF information in a measurement period, feed back quantity to realize the UE adjusted in statistic processes.Therefore, in LTE, because MCCH can not upgrade within a MCCH amendment cycle, so, PF information can not send with being carried in MCCH by the MBMS information of adding up simultaneously, otherwise will cause and cannot correctly implement for the mechanism of a certain MBMS in the reception condition of UE side for network side statistics, make UE correctly can not obtain statistical information.
Summary of the invention
In view of this, main purpose of the present invention is to provide a kind of method and system sending MBMS access probability factor, for giving security for the correct enforcement of a certain MBMS in the mechanism of the reception condition of UE side for network side statistics, thus can ensure that UE correctly obtains statistical information.
For achieving the above object, technical scheme of the present invention is achieved in that
Send a method for multimedia broadcast multi-broadcasting business MBMS access probability factor, the method also comprises:
The position corresponding to PF information Location Information access probability factor PF information being carried on the carrying position for identifying PF information sends, and described PF information is not carried in MCCH.
Described PF information Location Information is carried in MCCH or system information block 13 SIB13 and sends.
Described PF information Location Information is: send the radio frames of PF information and/or the information of subframe.
The radio frames of described PF information comprises PF wireless frame period and the skew of PF radio frames of PF information, and when meeting following formula, the radio frames that SFN is wherein corresponding is numbered the radio frames of described PF information:
SFN mod PF wireless frame period=PF radio frames skew;
Wherein, mod represents modulo operation.
The information of the subframe of described PF information is: indicate in the radio frames of PF information for carrying the subframe indication information of PF information.
Described subframe indication information is subframe numbers; Or, after part subframe being renumberd, indicate its relative position.
Described PF radio frames skew is more than or equal to the radio frames skew of the MCCH of its correspondence.
In MCCH, send described PF information revise at the MCCH of its correspondence the number of times sent in cycle or repetition period;
Described PF wireless frame period is the result that this MCCH revises the business of cycle or repetition period and described number of times.
The method also comprises: use the modulation identical with described MCCH and coded system to carry out modulating-coding process to the PF information carried;
Or, in SIB13, increase modulation and the coded system grade of the use of instruction PF information.
The sending method of described PF information is: in the position of described PF information Location Information instruction, adopts multimedia access control control unit MAC CE form, is sent after using the Logic Channel Identifier of agreement mark by multicast transmission channel MCH; Or,
Adopt MAC business datum unit SDU form, sent by multicast transmission channel MCH after using the Logic Channel Identifier of agreement mark.
The transmission of described PF information is later than the transmission of the MCCH of its correspondence, and the value in the time interval is greater than described UE and parses time required for information in MCCH.
The position of described PF information Location Information instruction is multimedia broadcast multi-broadcasting business single frequency network MBSFN sub-frame, or non-MBSFN sub-frame.
The method also comprises: network side by statistical information corresponding for described PF information by the MBMS information of adding up, be carried in multicast control channel MCCH and send.
Send a method for multimedia broadcast multi-broadcasting business MBMS access probability factor, comprising:
Network side determine to send in MCCH in statistical information by add up MBMS information time, meanwhile, in MCCH, send the PF information Location Information of the carrying position for identifying PF information;
Position indicated by described PF information Location Information is not in MCCH.
Send a method for multimedia broadcast multi-broadcasting business MBMS access probability factor, comprising:
Network side determine to send in MCCH in statistical information by add up MBMS information time, meanwhile, in MCCH, send the PF information Location Information of the carrying position for identifying PF information;
Position indicated by described PF information Location Information is not in MCCH;
Described PF information Location Information be adopted as send described by the MCCH of MBMS information that adds up and first time PF information there is the interval between position, and the cycle of the PF information at interval between PF information represents.
Described interval be greater than receive comprise described by the processing delay of the UE of the MCCH of MBMS information added up.
Described PF information Location Information is carried in MCCH or system information block 13SIB13 and sends.
Send a system for multimedia broadcast multi-broadcasting business MBMS access probability factor, comprise network side and user side, wherein,
Network side, for access probability factor PF information is carried on the carrying position for identifying PF information PF information Location Information corresponding to position send to user side, described PF information is not carried in MCCH;
User side, for receiving the information from network side.
Described PF information Location Information is: send the radio frames of PF information and/or the information of subframe;
Described PF information Location Information is carried in MCCH or system information block 13 SIB13 and sends.
Described network side, also for carrying out modulating-coding process by the modulation identical with described MCCH and coded system to the PF information carried;
Or, in SIB13, increase modulation and the coded system grade of the use of instruction PF information.
Described PF information, in the position that described PF information Location Information indicates, is adopted multimedia access control control unit MAC CE form, is sent after using the Logic Channel Identifier of agreement mark by multicast transmission channel MCH; Or,
Adopt MAC business datum unit SDU form, sent by multicast transmission channel MCH after using the Logic Channel Identifier of agreement mark.
Described network side is: evolution base station, or relay station, or cell cooperative entity MCE, or broadcast multicast service center BMSC, or MBMS gateway;
Described user side is user terminal UE, or relay station.
Described network side, also for by statistical information corresponding for described PF information by the MBMS information of adding up, be carried in multicast control channel MCCH and send.
As can be seen from the technical scheme that the invention described above provides, the position corresponding to PF information Location Information that PF information is carried on the carrying position for identifying PF information by network side sends, and described PF information is not carried in MCCH.Pass through the inventive method, send because PF information is not carried in MCCH, therefore, avoid in LTE, because MCCH can not occur to upgrade the impact on the fast sex change of PF information within a MCCH amendment cycle, for providing guarantee for a certain MBMS in the correct enforcement of the mechanism of the reception condition of user side for network side statistics.Like this, when user's side joint receive in the statistical information being carried on and sending in MCCH by the MBMS information of adding up, user side is according to the PF information Location Information of the carrying position for identifying PF information received, the PF information sent is obtained from relevant position, because PF information is not carried in MCCH, ensure that user side correctly obtains statistical information.
Accompanying drawing explanation
Fig. 1 is the flow chart that the present invention sends the method for MBMS access probability factor;
Fig. 2 is the schematic diagram of the position of MBMS statistical information in the embodiment of the present invention.
Embodiment
Fig. 1 is the flow chart that the present invention sends the method for MBMS access probability factor, as shown in Figure 1, comprising:
Step 100: being carried in MCCH by the MBMS information of adding up in statistical information sends by network side.It should be noted that, in prior art, according to the regulation of the R6/R7 standard agreement version of 3GPP, the statistical information comprising MBMS information is carried in MCCH and sends; But in LTE, statistical information is not necessarily carried on MCCH and sends.Therefore, the present invention does not limit the send mode of MBMS information, and its send mode is also not intended to limit the scope of the invention.
Step 101: the position corresponding to PF information Location Information PF information being carried on the carrying position for identifying PF information sends, and described PF information is not carried in MCCH.
In MBMS statistic processes, network side sends being carried in MCCH by the MBMS information of adding up; Simultaneously, the PF information Location Information being used for the carrying position identifying PF information is carried in MCCH or system information block 13 (SIB13) and sends by network side, that is, the position that in the present invention, network side is sent by the PF information that MCCH or SIB13 indicates this to add up, and the position of the transmission PF information be instructed to is not in MCCH.
Network side can be: evolution base station (eNB), relay station (relay), cell cooperative entity (MCE, Multi-cell/multicast Coordination Entity), broadcast multicast service center (BMSC, Broadcast-Multicast-Service Centre), MBMS gateway (MBMS GW, MBMSGateWay) etc.
Pass through the inventive method, send because PF information is not carried in MCCH, therefore, avoid in LTE, the impact of the fast sex change because MCCH can not occur to upgrade within a MCCH amendment cycle on PF information, for providing guarantee for a certain MBMS in the correct enforcement of the mechanism of the reception condition of user side for network side statistics.Like this, when user's side joint receive in the statistical information being carried on and sending in MCCH by the MBMS information of adding up, user side is according to the PF information Location Information of the carrying position for identifying PF information received, the PF information sent is obtained from relevant position, because PF information is not carried in MCCH, thus ensure that user side correctly obtains statistical information.User side can be user terminal (UE), or relay station (relay).
Fig. 2 is the schematic diagram of the position of MBMS statistical information in the embodiment of the present invention, it (is exactly the amendment cycle of MCCH that longer column represents that MCCH revises the opportunity in cycle, the information updating in MCCH can be allowed herein, the MCCH repetition period is had repeatedly between the MCCH amendment cycle, namely repeatedly MCCH information can be sent between the MCCH amendment cycle, and MCCH information does not allow to upgrade), be configured with by the MBMS information of adding up in the MCCH of first longer column, and carry PF information Location Information simultaneously.Wherein, a series of PF information Location Information (comprising radio frames and sub-frame information) will be given in PF information Location Information, column shorter as shown in Figure 2, represent the position sending PF information, and at least send once in the process of once adding up feedback, in Fig. 2, give transmission schematic diagram repeatedly.PF information can change each time.
Particularly, the PF information Location Information that in the inventive method, network side sends in MCCH or SIB13 is: send the radio frames of PF information and/or the information of subframe.The radio frames of such transmission PF information and/or subframe are do not carry PF information at ordinary times, only have when network side send by add up MBMS information time, the PF information sent subsequently is just understood and be sent in these radio frames and/or subframe.In other words, after statistics feedback terminates, these no longer carry PF information for the radio frames and/or subframe carrying PF information, and UE does not also receive PF information in these radio frames and/or subframe.
When adopting MCCH to send the PF information Location Information of its correspondence, whether in MCCH carrying by the MBMS information of the adding up beginning as a MBMS statistic processes, if network side determine to carry in MCCH by add up MBMS information time, the positional information that the PF information that network side carries its correspondence in this MCCH simultaneously sends.When statistic processes terminates, MCCH no longer sends by the MBMS information of adding up and PF information Location Information, further, when network side needs to terminate this statistic processes, can by by the zero setting of PF information, and to represent that this MBMS statistic processes terminates.
The method that the present invention sends PF information is: in selected subframe, adopt multimedia access control (MAC, Medium Access Control) control unit (CE, Control Element) form sends to UE by multicast transmission channel (MCH) after using the Logic Channel Identifier of agreement mark; Or, adopt MAC business datum unit (SDU, Service Data Unit) form, after using the Logic Channel Identifier of agreement mark, send to UE by multicast transmission channel (MCH).
The wireless frame information of PF information is, for describing the radio frames which radio frames is carrying PF information.In the inventive method, the radio frames carrying PF information can be represented, in units of radio frames by the PF radio frames skew of the PF wireless frame period of PF information and PF information.Such as: the PF wireless frame period of PF information is 16 radio frames (being expressed as rf16), and in LTE, each radio frames is 10ms length, wherein comprises 10 subframes, each subframe 1ms duration; So 16 radio frames represent 160ms; PF radio frames skew value is the integer of 0 ~ 10; The radio frames carrying PF information is determined by formula (1):
SFN mod PF wireless frame period=PF radio frames skew (1)
Wherein, mod represents modulo operation.From formula (1), when SFN value meets formula (1), radio frames numbering (SFN) that this SFN is corresponding is the radio frames of carrying PF information.Wherein, the skew of PF radio frames is more than or equal to the radio frames skew of MCCH corresponding to described PF information.
Corresponding when determining according to the mode of formula (1) radio frames carrying PF information, in LTE, the wireless frame period and the radio frames that need to increase PF information in SIB13 or MCCH offset two parameters.Further, the expense of signaling can be reduced by the mode implied, such as, the wireless frame period of PF information only can be introduced in SIB13, and the skew of the PF radio frames of PF information is set to radio frames skew (mcch-Offset) equaling (implying) MCCH of its correspondence, transmission parameter can be lacked like this, thus decrease the expense of signaling.
When using MCCH to carry radio frames and the/sub-frame information of PF information, corresponding information unit can be increased in MCCH, for carrying wireless frame period and the radio frames offset parameter of above-mentioned PF information, and be carried on the sub-frame information for carrying PF information in radio frames.The above-mentioned corresponding mode that implies is equally applicable to the radio frames of PF information and/or sub-frame information carries in MCCH, wherein a kind of mode in secret is: in MCCH, send PF information revise at this MCCH the number of times sent in cycle or repetition period, then, number of pass times converses the wireless frame period of PF information, the radio frames skew implying PF information equals the skew (mcch-Offset) of this MCCH, so just determines the radio frames position of PF information; In MCCH, to indicate in this radio frames which subframe for carrying PF information more further.
Wherein, the wireless frame period of PF information can be directly provide its sizes values; Also can be provided by indirectly mode, such as, determine that PF information revises at a MCCH number of times sent in cycle or MCCH repetition period, as in the MCCH amendment cycle, PF information sends 8 times, so, revise by MCCH the cycle just can to determine PF information cycle divided by 8, now, in SIB13, configure the transmission times of PF information, and replace the wireless frame period of PF.
Further, do not use owing to also having 10 subframes in radio frames, even if only use the MBSFN sub-frame in radio frames to carry PF information, time so maximum, still have 6 MBSFN sub-frame not use in a radio frames, specifically which subframe carries PF information, also needs further instruction, so correspondingly, also need the subframe indication information increasing PF information place in SIB13.Concrete implementation method for be instruction subframe numbers: which subframe numbers can directly indicate is; Or after part subframe being renumberd, indicate its relative position, when such as using MBSFN sub-frame to carry PF information, the subframe that by 6 may be MBSFN sub-frame, again from 1 to 6 numberings, then indicates wherein new subframe numbering.In addition, also can arrange fixing to use a certain subframe, so just not need to reinform the sub-frame information of UE about PF information.
Further, the carrying of PF information needs to carry out modulating, encoding, to ensure its reliability transmitted, the inventive method also comprises: use the modulation identical with MCCH information and coded system (MCS, Modulation and Coding Scheme) to carry out modulating-coding process to the PF information carried.Or, in SIB13, increase the MCS class parameter that instruction PF information uses.
Because PF information is relevant with MBMS, if adopt MBSFN sub-frame to send PF information, be to affect the transmission of non-MBMS and reception, therefore, the present invention sends the position prioritizing selection MBSFN sub-frame of PF information.Certainly, also non-MBSFN sub-frame can be used in the present invention.
More reasonable in order to ensure the statistics feedback procedure of UE, in practical application, the position of PF information of the present invention can be:
When using MCCH carrying by the radio frames of the MBMS information of adding up and PF information and/or sub-frame information, the at least delayed carrying of subframe position PF information occurred is by more than the subframe 4ms of MBMS information added up, that is, the transmission of PF information is later than the transmission of the MCCH of its correspondence, and the value in the time interval is greater than UE and parses time required for information in MCCH.Like this, UE receives MCCH, therefrom resolve by the radio frames of the MBMS information of adding up and PF information and/or sub-frame information (can complete in 4ms in the practical application of UE resolving), now, network side just starts to send PF information, like this, UE can receive PF information, ensure that the reasonability of the statistics feedback procedure of UE side.Otherwise, if network side the sub-frame configuration of PF information be next-door neighbour MCCH (being configured with radio frames and/or the sub-frame information of statistical information and PF information in this MCCH) subframe after (within 4ms), so when UE is resolving radio frames and/or the sub-frame information of statistical information in MCCH and PF information, network side just have sent first time PF information, now because UE does not also parse radio frames and/or the sub-frame information of statistical information and PF information, also just and do not know that network side have sent the position of PF information, so UE can opportunity of missing reception PF information.
In addition, due to being occurred by the radio frames of the MBMS information of adding up and PF information and/or sub-frame information of carrying in MCCH simultaneously, if when network side does not need to carry out statistics feedback at ordinary times, can not occur in MCCH by the MBMS information of adding up, correspondingly, there is not radio frames and/or the sub-frame information of PF information in MCCH yet.Certainly, also the radio frames of the PF information carried in MCCH and/or sub-frame information often can be joined item as MCCH, namely configure radio frames and/or the sub-frame information of PF information in MCCH always, when network side needs to initiate MBMS statistics feedback, network side can increase by the MBMS information of adding up again in MCCH, like this, UE finds by after the MBMS information of adding up in MCCH, namely know that network side has initiated MBMS statistics feedback, thus trigger radio frames and/or sub-frame information that UE reads PF information.
For the inventive method, also provide a kind of system sending multimedia broadcast multi-broadcasting business MBMS access probability factor, comprise network side and user side, wherein,
Network side, for access probability factor PF information is carried on the carrying position for identifying PF information PF information Location Information corresponding to position send to user side, described PF information is not carried in MCCH; Also for by statistical information corresponding for described PF information by the MBMS information of adding up, be carried in multicast control channel MCCH and send.
User side, for receiving the information from network side.
Wherein, PF information Location Information is: send the radio frames of PF information and/or the information of subframe;
Described PF information Location Information is carried in MCCH or system information block 13 SIB13 and sends.
Described network side, also for carrying out modulating-coding process by the modulation identical with described MCCH and coded system to the PF information carried;
Or, in SIB13, increase modulation and the coded system grade of the use of instruction PF information.
Described PF information, in the position that described PF information Location Information indicates, is adopted multimedia access control control unit MAC CE form to send, is sent after using the Logic Channel Identifier of agreement mark by multicast transmission channel MCH; Or, adopt MAC business datum unit SDU form, sent by multicast transmission channel MCH after using the Logic Channel Identifier of agreement mark.
Described network side is: evolution base station, or relay station, or cell cooperative entity MCE, or broadcast multicast service center BMSC, or MBMS gateway.Described user side is user terminal UE, or relay station.
Below in conjunction with embodiment, the inventive method is described in detail.
First embodiment: in the present invention, for in LTE, the information carried in MCCH can not revise the reason of modifying in the cycle at MCCH, special proposition, in MCCH carrying slow become by the MBMS information of adding up, or for needing the MBMS of carrying out adding up feedback to do some marks in MCCH, such as, for each MBMS in MCCH all introduces an indicating bit, be used to refer to this MBMS the need of carrying out statistics feedback.Then the fast PF information become is not carried in MCCH itself, but the radio frames and/or sub-frame information that describe PF information accurate location are carried in SIB13 send to UE.Introduce the concrete configuration of PF information below.
For in LTE, suppose in SIB13, to increase by three parameters, for describing radio frames and/or the sub-frame information of PF information.These three parameters comprise the wireless frame period of PF information, the radio frames skew of PF information, the subframe indication information of PF information.Particularly, these three parameters meet formula (1), the i.e. radio frames skew of the wireless frame period=PF information of SFN mod PF information, wherein, system wireless frame number (SFN, SystemFrame Number) radio frames corresponding to value, be the radio frames that PF information is predetermined.The wireless frame period span of PF information is the set of the multiple compositions in 16,32,64,128,256 and 512, and the span of the radio frames offset parameter of PF information is the integer of 0 ~ 10.
Further, owing to comprising 10 subframes in a radio frames, wherein 6 subframes can be had at most to be configured to MBSFN sub-frame according to the regulation of LTE protocol, so, PF information specifically sends in that subframe in radio frames, uses the subframe indication information of PF information to describe.So just uniquely can determine the subframe for sending PF information.The subframe indication information of PF information is specifically as follows:
If only use MBSFN sub-frame carrying PF information, so use 3 bits, Frequency Division Duplexing (FDD) (FDD, Frequency Division Duplex) under numerical value 1,2,3,4,5,6 that wherein three bits are corresponding corresponding subframe #1, #2, #3, #6, #7, #8 respectively, the numerical value 1,2,3,4,5 that under time division duplex (TDD, Time Division Duplex), three bits are corresponding is respectively to a subframe #3, #4, #7, #8, #9.If non-MBSFN sub-frame can be used, so use 4bit instruction subframe numbers wherein.It should be noted that, if sub-frame information is about decided to be some subframes, so just eliminates configuration in SIB13 and send this parameter of subframe indication information of PF information.
Wherein, the wireless frame period information of above-mentioned PF information can provide by other means, the number of repetition of PF information is such as used to replace the wireless frame period of PF information, the number of repetition of PF information is the occurrence number of PF information, be described in the number of times that in MCCH repetition period or MCCH amendment cycle, PF information occurs, now, use MCCH repetition period or amendment cycle divided by the number of repetition of this PF information, just can obtain the wireless frame period of PF information.Then continue to use formula (1) to determine the radio frames position of PF information.
Wherein, if the radio frames offset parameter value of above-mentioned PF information is undertaken implying by radio frames skew (mcch-Offset) parameter of MCCH corresponding to this PF information, namely the radio frames offset parameter value of PF information equals the value of radio frames skew (mcch-Offset) parameter of MCCH corresponding to this PF information, now, the radio frames skew of PF information does not need to occur in SIB13 yet, thus saves signaling consumption.
After above-mentioned in secret and agreement, the present invention provides the mode that two kinds are preferably determined PF information.That is: the first is: the occurrence number increasing PF information in SIB13, this parameter value set is by 2,4,8,16,32, the set of the multiple compositions in 64, the occurrence number of PF information, for describing the number of times that in a MCCH repetition period or amendment cycle, PF information occurs, utilizes MCCH repetition period or amendment cycle divided by described number of times, obtains the wireless frame period of PF information.The radio frames skew of agreement PF information equals the radio frames skew of corresponding MCCH.Formula (1) so just can be used to determine the wireless frame information of PF information.The sub-frame information at PF information place is also by arranging to realize, in such as LTE, about be decided to be some (such as subframe #2) descending sub frame of radio frames under FDD, under tdd mode, be about decided to be some in radio frames (such as subframe #1) descending sub frame;
The second way is: the position being determined PF information by the subframe indication information of the occurrence number and PF information that increase PF information in SIB13.The implication of these two parameters and occupation mode described above-mentioned, repeated no more here.
When using MCCH carrying by the radio frames of the MBMS information of adding up and PF information and/or sub-frame information, the at least delayed carrying of subframe position PF information occurred is by more than the subframe 4ms of MBMS information added up, that is, the transmission of PF information is later than the transmission of the MCCH of its correspondence, and the value in the time interval is greater than UE and parses time required for information in MCCH.
Outside, due to being occurred by the radio frames of the MBMS information of adding up and PF information and/or sub-frame information of carrying in MCCH simultaneously, if when network side does not need to carry out statistics feedback at ordinary times, can not occur in MCCH by the MBMS information of adding up, correspondingly, there is not radio frames and/or the sub-frame information of PF information in MCCH yet.Certainly, also the radio frames of the PF information carried in MCCH and/or sub-frame information often can be joined item as MCCH, namely configure radio frames and/or the sub-frame information of PF information in MCCH always, when network side needs to initiate MBMS statistics feedback, network side can increase by the MBMS information of adding up again in MCCH, like this, UE finds by after the MBMS information of adding up in MCCH, namely know that network side has initiated MBMS statistics feedback, thus trigger radio frames and/or sub-frame information that UE reads PF information.
In addition, in SIB13, configuration carries radio frames and/or the sub-frame information of PF information, can be specifically radio frames and/or the sub-frame information that network side just configures PF information in advance in SIB13, but UE, before the instruction not receiving the MBMS statistics feedback that network side sends, can not retrieve and receive the information in the prior radio frames for PF information configuration and/or subframe.Like this, after network side sends the instruction starting MBMS statistics feedback, network side does not need to upgrade SIB13, thus simplifies the flow process of network side.The instruction starting MBMS statistics feedback can by finding to occur by the MBMS information of adding up in MCCH.
Second embodiment: identical with the parameter configuration in the first embodiment, just the parameter in the first embodiment is placed in MCCH and carries, namely in MCCH, the wireless frame period of PF information or the occurrence number of PF information is configured, the radio frames skew of PF information, the sub-frame information of PF information.Wherein, identical with SIB13 in the first embodiment of the configuration of parameter and occupation mode, and some imply modes and parameter configuration in points for attention, the configuration of the radio frames offset parameter of such as PF information, and the subframe of PF information and MCCH configuration consideration etc.Because the UE of non-MBMS ability can not receive MCCH, therefore, use MCCH to carry radio frames and/or the sub-frame information of transmission PF information, avoid the impact of the UE for non-MBMS ability better.
In addition, in MCCH, configuration carries radio frames and/or the sub-frame information of PF information, can also following benefits be obtained, namely only have when network side MCCH be configured with by add up MBMS information time, in MCCH, just configure radio frames and/or the sub-frame information of PF information simultaneously.If network side do not configure in MCCH by add up MBMS information time, in MCCH, also do not configure radio frames and/or the sub-frame information of PF information simultaneously.Like this, the signaling decreasing network side is efficient, decreases the expense that network side signaling is meaningless.Certainly, do not get rid of in the present invention yet network side do not configure in MCCH by add up MBMS information time, in MCCH, but configure the radio frames of PF information and/or the execution mode of sub-frame information.
3rd embodiment: use two parameter configuration PF information Location Information, one of them be send by the MCCH of MBMS information that adds up and first time PF information there is the interval between position, how many, interval radio frames or subframe duration can be adopted to describe; Another is the cycle of the PF information at interval between PF information, and how many, interval radio frames or subframe duration can be adopted to describe.Specifically can reference diagram 2.Wherein,
The configuration at interval needs to consider that UE receives the processing delay comprised by after the MCCH of MBMS information that adds up, general UE process needs 2 ~ 3ms, i.e. the duration of 2 ~ 3 subframes, and such interval needs to be greater than this processing delay;
The cycle span of PF information is the set of the multiple compositions in rf16, rf32, rf64, rf128, rf256 and rf512, rfn represents n radio frames duration (wherein, n=16,32,64,128,256,512), in LTE, radio frames is 10ms, represents 16 radio frames.
In 3rd embodiment, two parameters can be configured carrying by MCCH or SIB13 and send to UE.The requirement of configuration is with reference to the requirement in the first embodiment and the second embodiment.
The above, be only preferred embodiment of the present invention, be not intended to limit protection scope of the present invention, and all any amendments done within the spirit and principles in the present invention, equivalent replacement and improvement etc., all should be included within protection scope of the present invention.
Claims (19)
1. send a method for multimedia broadcast multi-broadcasting business MBMS access probability factor, it is characterized in that, the method also comprises:
The position corresponding to PF information Location Information access probability factor PF information being carried on the carrying position for identifying PF information sends, and described PF information is not carried in MCCH;
Wherein, described PF information Location Information is carried in MCCH or system information block 13 SIB13 and sends; Described PF information Location Information is: send the radio frames of PF information and/or the information of subframe; The radio frames of described PF information comprises PF wireless frame period and the skew of PF radio frames of PF information;
The transmission of described PF information is later than the transmission of the MCCH of its correspondence, and the value in the time interval is greater than UE and parses time required for information in MCCH.
2. method according to claim 1, is characterized in that, when meeting following formula, the radio frames that SFN is wherein corresponding is numbered the radio frames of described PF information:
SFN mod PF wireless frame period=PF radio frames skew;
Wherein, mod represents modulo operation.
3. method according to claim 1, is characterized in that, the information of the subframe of described PF information is: indicate in the radio frames of PF information for carrying the subframe indication information of PF information.
4. method according to claim 3, is characterized in that, described subframe indication information is subframe numbers; Or, after part subframe being renumberd, indicate its relative position.
5. method according to claim 1 and 2, is characterized in that, described PF radio frames skew is more than or equal to the radio frames skew of the MCCH of its correspondence.
6. method according to claim 1 and 2, is characterized in that, sends described PF information and revise at the MCCH of its correspondence the number of times sent in cycle or repetition period in MCCH;
Described PF wireless frame period is the result that this MCCH revises the business of cycle or repetition period and described number of times.
7. method according to claim 1, is characterized in that, the method also comprises: use the modulation identical with described MCCH and coded system to carry out modulating-coding process to the PF information carried;
Or, in SIB13, increase modulation and the coded system grade of the use of instruction PF information.
8. method according to claim 1, it is characterized in that, the sending method of described PF information is: in the position of described PF information Location Information instruction, adopt multimedia access control control unit MAC CE form, sent by multicast transmission channel MCH after using the Logic Channel Identifier of agreement mark; Or,
Adopt MAC business datum unit SDU form, sent by multicast transmission channel MCH after using the Logic Channel Identifier of agreement mark.
9. according to Claims 1 to 4,7, method described in 8 any one, it is characterized in that, the position of described PF information Location Information instruction is multimedia broadcast multi-broadcasting business single frequency network MBSFN sub-frame, or non-MBSFN sub-frame.
10. method according to claim 1, is characterized in that, the method also comprises: network side by statistical information corresponding for described PF information by the MBMS information of adding up, be carried in multicast control channel MCCH and send.
11. 1 kinds of methods sending multimedia broadcast multi-broadcasting business MBMS access probability factor, is characterized in that, comprising:
Network side determine to send in MCCH in statistical information by add up MBMS information time, meanwhile, in MCCH, send the PF information Location Information of the carrying position for identifying PF information;
Position indicated by described PF information Location Information is not in MCCH.
12. 1 kinds of methods sending multimedia broadcast multi-broadcasting business MBMS access probability factor, is characterized in that, comprising:
Network side determine to send in MCCH in statistical information by add up MBMS information time, meanwhile, in MCCH, send the PF information Location Information of the carrying position for identifying PF information;
Position indicated by described PF information Location Information is not in MCCH;
Described PF information Location Information be adopted as send described by the MCCH of MBMS information that adds up and first time PF information there is the interval between position, and the cycle of the PF information at interval between PF information represents.
13. methods according to claim 12, is characterized in that, described interval be greater than receive comprise described by the processing delay of the UE of the MCCH of MBMS information added up.
14. methods according to claim 12 or 13, it is characterized in that, described PF information Location Information is carried in MCCH or system information block 13SIB13 and sends.
15. 1 kinds of systems sending multimedia broadcast multi-broadcasting business MBMS access probability factor, is characterized in that, comprise network side and user side, wherein,
Network side, for access probability factor PF information is carried on the carrying position for identifying PF information PF information Location Information corresponding to position send to user side, described PF information is not carried in MCCH;
User side, for receiving the information from network side;
Wherein, described PF information Location Information is: send the radio frames of PF information and/or the information of subframe;
Described PF information Location Information is carried in MCCH or system information block 13SIB13 and sends;
The transmission of described PF information is later than the transmission of the MCCH of its correspondence, and the value in the time interval is greater than UE and parses time required for information in MCCH.
16. systems according to claim 15, is characterized in that, described network side, also for carrying out modulating-coding process by the modulation identical with described MCCH and coded system to the PF information carried;
Or, in SIB13, increase modulation and the coded system grade of the use of instruction PF information.
17. systems according to claim 16, it is characterized in that, described PF information, in the position that described PF information Location Information indicates, is adopted multimedia access control control unit MAC CE form, is sent after using the Logic Channel Identifier of agreement mark by multicast transmission channel MCH; Or,
Adopt MAC business datum unit SDU form, sent by multicast transmission channel MCH after using the Logic Channel Identifier of agreement mark.
18. systems according to claim 15 or 16, it is characterized in that, described network side is: evolution base station, or relay station, or cell cooperative entity MCE, or broadcast multicast service center BMSC, or MBMS gateway;
Described user side is user terminal UE, or relay station.
19. systems according to claim 15, is characterized in that, described network side, also for by statistical information corresponding for described PF information by the MBMS information of adding up, be carried in multicast control channel MCCH and send.
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| CN101064864A (en) * | 2006-04-28 | 2007-10-31 | 大唐移动通信设备有限公司 | Method for counting and access controlling in MBMS service |
| CN101523933A (en) * | 2006-08-22 | 2009-09-02 | 摩托罗拉公司 | Method and apparatus for providing and obtaining broadcast/multicast service feedback |
| EP2182689A2 (en) * | 2008-10-31 | 2010-05-05 | Samsung Electronics Co., Ltd. | Device and method for transmitting downlink control information in a wireless communication system |
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| CN101064864A (en) * | 2006-04-28 | 2007-10-31 | 大唐移动通信设备有限公司 | Method for counting and access controlling in MBMS service |
| CN101523933A (en) * | 2006-08-22 | 2009-09-02 | 摩托罗拉公司 | Method and apparatus for providing and obtaining broadcast/multicast service feedback |
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