CN101640842B - Transmission method of multimedia broadcast and multicast transaction resource allocation signaling - Google Patents
Transmission method of multimedia broadcast and multicast transaction resource allocation signaling Download PDFInfo
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Abstract
The invention provides a transmission method of multimedia broadcast and multicast transaction resource allocation signaling, comprising that: when a base station allocates resources for multimedia broadcast and multicast transaction base on various resource allocation methods, each resource allocation method forms corresponding signaling, and the signaling corresponding to different resource allocation methods is put in a system information block, namely SIB, to be sent to a terminal. The signaling sending method of the invention realizes signaling transmission during switching among various different resource allocation methods for multimedia broadcast and multicast transaction, the transmission mode is simple, the influence on existing systems are slight, and no extra signaling cost is added.
Description
Technical field
The present invention relates to LTE (Long Term Evolution; Long Term Evolution) system; Be particularly related to a kind of base station or improve base station (Node B and eNode B) and how to be transferred to the method at terminal to multimedia broadcasting in the mixed carrier system and multicast service (Multimedia Broadcast Multicast Service abbreviates MBMS as) resource allocation signaling.
Background technology
Along with the fast development of Internet and popularizing of large-screen multi-functional mobile phone; A large amount of mobile data multimedia services and various high bandwidth multimedia service have appearred; For example; Video conference, television broadcasting, video request program, advertisement, online education, interactive game etc., this has satisfied the business demand that the mobile subscriber constantly rises on the one hand, also brings new business growth point for mobile operator simultaneously.These mobile data multimedia services require a plurality of users can receive identical data simultaneously, compare with general data service, have characteristics such as data volume is big, longer duration, delay sensitive.
In order to effectively utilize mobile network resource; Third generation partner program (3rd Generation Partnership Project; Abbreviate 3GPP as) to have proposed MBMS professional; This business is a kind ofly to transmit the technology of data from a data source to a plurality of targets, has realized sharing of network (comprising core net and Access Network) resource, has improved the utilance of Internet resources (especially air interface resource).The MBMS of 3GPP definition not only can realize the classes of messages multicast and the broadcasting of plain text low rate; But also can realize broadcasting and the multicast that high-speed multimedia is professional; Multiple rich video, audio frequency and multimedia service are provided; This has complied with following mobile data Development Trend undoubtedly, for the development of 3G provides better professional prospect.
The transmission of MBMS business on eating dishes without rice or wine is divided into special carrier and shared carrier wave dual mode.The main distinction of two kinds of transmission meanss is: special carrier mode, carrier wave are only carried the MBMS business; Mixed carrier mode, carrier wave are not only carried the MBMS business, also carry non-MBMS business (non-MBMS is professional, and is professional like clean culture unicast).Like this, carrying in the MBMS business procedure, will have the situation of two types the same carrier wave of service integration with the mixed carrier mode.How to let two types of business not disturb and in the transport service process, bring into play the effect of maximum mutually, always be the emphasis topic that industry is discussed.
Use mixed carrier to carry in MBMS business and the non-MBMS business procedure; Two types of business multiplexing with frequency division multiplex (Frequency-Division Multiplexing; Abbreviate FDM as), time division multiplexing (Time-Division Multiplexing abbreviates TDM as) and FDM/TDM hybrid multiplex mode be main.At present, industry is that main multiplex mode is studied with TDM.This paper in the following description, the multiplex mode of also professional as mixed carrier MBMS and non-MBMS business with TDM.
MBMS business and non-MBMS business are in carrying out the TDM multiplex process; Need take into account the influence of many-sided factor; Comprise: to influence, subscriber equipment (User Equipment abbreviates UE as) power saving, excessively configuration (over allocation), scheduling granularity, overhead and the dispatching flexibility etc. of unicast service time delay.At present, the multicast subframe configuration adopts the method for Two-level (dual unit) to realize.The Two-level method is used the two-stage parameter to define and is indicated the particular location that carries the MBMS service subframe.As shown in Figure 1, specific as follows:
Radio frames level configuration (macro-level, macro level): indicate the radio frames residing particular location in system that comprises multicast subframe;
Sub-frame level configuration (microscopic level, micro level): indicate in comprising the radio frames of multicast subframe the position at concrete multicast subframe place;
At present, there are 2 kinds of use dual units of being admitted by industry to realize the method for multicast subframe configuration, but its pros and cons are respectively arranged.Distinct methods all adopts the modification cycle of 320ms as the multicast subframe configuration according to the requirement of scheduling granularity, and wherein 2 kinds of schemes are described below, and is specific as follows:
Option A:
Use the two-stage parameter to define and indicate the position of carrying the professional concrete subframe of MBMS, specific as follows:
1, radio frames rank (macro-level, macro level) operation parameter N and M realize:
Parameter N is with 2
NIndividual radio frames is the distribution of dispersing in the cycle, and first radio frames in each cycle is as the radio frames that comprises multicast subframe (being the MBMS service subframe), and N uses the field of a 3bit to represent;
Parameter M adopts parameter M to realize the skew indication of different MBMS zone in the configuration of radio frames level, avoids disturbing because of the MCH (Multicast Channel, multicast channel) that different MBMS region overlappings produce, and M uses the field of a 3bit to represent;
2, sub-frame configuration (microscopic level; Micro lever) use the field of a 3bit to realize; The size that this field is concrete is represented the continuous number of sub-frames from subframe #1 (removing outside #0, #4 and the #5 subframe), and several continuous subframes are multicast subframe on this radio frames, i.e. the MBMS service subframe.
Option b:
Use the two-stage parameter to define and indicate the position of carrying the professional concrete subframe of MBMS, specific as follows:
1, radio frames rank (macro-level, macro level) operation parameter Q, the value of Q adopts the mode of 32bit to realize; 32bit uses according to the mode of bitmap, in order to realize the indication of 320ms 32 radio frames in the modification cycle;
2, sub-frame configuration (microscopic level; Micro level) adopt the field of a 3bit to realize; The size that this 3bit field is concrete is represented the continuous number of sub-frames from subframe #1 (removing outside #0, #4 and the #5 subframe), and several continuous subframes are multicast subframe on this radio frames, i.e. the MBMS service subframe.
Above-mentioned 2 kinds of methods are all finding corresponding balance point aspect overhead and the flexible configuration degree.On the whole, overhead is big more, and corresponding flexibility ratio is just high more; Otherwise overhead is more little, and flexibility ratio is just low more.Option A is minimum aspect overhead; But the respective flexible degree is also minimum, even situation about can't distribute in some MBMS overlapping region resource occurred, has caused professional can't the carrying or the serious waste of resource; In addition; Option A because the restriction of collocation method causes overhead increase at double, makes the method in the MBMS overlapping region even can't use in the MBMS overlapping region; Option b makes dispatching flexibility reach maximum owing to used the bitmap mode of 32bit, but the overhead of it is obvious that 32bit is maximum in all schemes, and the system information load that brings to system also is maximum.
Can only adopt a kind of MBMS service resource allocation method in the system at present; For example adopt a kind of in such scheme A or the option b; Might as well suppose to adopt option A, behind the operational version A of base station, form signaling; On system information block SIB2, send signaling bear, the terminal receives on SIB2 conciliates phase separation pass option A signaling.
Summary of the invention
The technical problem that the present invention will solve provides a kind of signal transmission method during based on multiple different MBMS service resource allocation method coexistence, and it is simple to reach sending mode, minimum to the existed system influence, the purpose of not extra increase expense.
In order to solve the problems of the technologies described above; The invention provides a kind of multimedia broadcasting and multicast transaction resource allocation signaling transmission method; Comprise: when the base station is said multimedia broadcasting and multicast service Resources allocation based on multiple resource allocation method; Every kind of resource allocation method forms corresponding signaling, and it is to send to the terminal among the SIB that its corresponding signaling of different resources collocation method is placed on system information block;
Wherein, with the multiplex mode of time division multiplexing as mixed carrier MBMS business and non-MBMS business; If said system information block is not system information block SIB1, then also need this system information block mapping is redispatched to the terminal after system information SI goes up.
Further, said method also can have following characteristics, if said system information block is not system information block SIB1, then also needs this system information block mapping is redispatched to the terminal after system information SI goes up.
Further, said method also can have following characteristics, and said system information block is existing system information block or newly-increased system information block.
Further, said method also can have following characteristics, its corresponding signaling of different resources collocation method is placed on respectively in the different system information piece sends to the terminal.
Further, said method also can have following characteristics, the corresponding relation of said base station and terminal agreement system information block and/or system information and signaling, and signaling is resolved according to the corresponding relation of system information block and/or system information and signaling in said terminal.
Further, said method also can have following characteristics, and it is said multimedia broadcasting and multicast service Resources allocation that two kinds of resource allocation methods are used in said base station, forms two kinds of signalings, is placed in two different system information pieces and sends.
Further, said method also can have following characteristics, its corresponding signaling of different resources collocation method is placed in the identical system information block sends to the terminal.
Further, said method also can have following characteristics, and an indication information is also sent in said base station, indicates the form of the signaling in the said system information block, and the signaling in the said system information block is resolved according to said indication information in said terminal.
Further, said method also can have following characteristics, and blind Detecting said signaling length in said terminal according to the form of said this signaling of signaling length judgement, is resolved said signaling.
Further, said method also can have following characteristics, and one of them is system information block SIB1 or SIB2 for said system information block.
Signaling when the method for the invention, realization are switched based on multiple different MBMS service resource allocation method is sent, and its sending mode is simple, and is minimum to the existed system influence, not extra increase signaling consumption.
Description of drawings
Fig. 1 is a dual unit multicasting subframe collocation method sketch map;
Fig. 2 is the overlapping covering sketch map of the different MBMS service area of the present invention;
Fig. 3 is a resource allocation signaling sending method flow chart of the present invention.
Embodiment
In order to further specify the present invention, be elaborated below in conjunction with accompanying drawing and embodiment.
Form different signalings for multiple different schemes, because the length of signaling is different, form is different, and every bit implication is different, so the terminal should be distinguished, treats respectively.Propose a kind of terminal that makes below and can distinguish the method for the signaling of different schemes.
Among the present invention, the signaling that the different resource allocative decision is formed is configured on the different SIB (System Information Block, system information block), and signaling format and implication are known through resolving the signaling on it according to different SIB in the terminal; Perhaps different signalings is configured on the identical SIB, the terminal is distinguished signaling format through blind Detecting signaling length from signaling length, and perhaps the form of signaling is known at the terminal through the indication information of base station.
Hereinafter described base station is meant the base station or improves base station (Node B and eNode B).
After base station operational version A carries out resource allocation, form signaling and be placed on upward transmission of SIB1, after base station operational version B carries out resource allocation; Forming signaling is placed on the SIBX (X＞=2); SIBX is mapped to SI-N (N＞=2, System Information message, system information) and sends.
SIB1 is existing SIB in the LTE system, and SIBX can be existing SIB except that SIB1, also can be the SIB that increases newly.So system side does not need additional overhead to tell the terminal, the instruction that the resource allocation what scheme the base station adopts carry out at present forms, and the form and the implication of signaling just can be known according to the difference of SIB in the terminal, thereby accomplish the parsing to signaling.Perhaps just can know the form and the implication of signaling, signaling is resolved according to the difference of SI.Wherein, the corresponding relation of SIB and/or SI and signaling is arranged mutually by base station and terminal in advance, and signaling is resolved according to the corresponding relation of SIB and/or SI and signaling in the terminal.
Because SIB1 is more special, it need not be mapped on a certain SI among the LTE, can directly send so SIB1 goes up the placement signaling.
| The position | Mapping | |
| The option A signaling | SIB1 | |
| The option b signaling | SIBX | SI-N |
Wherein, SIB1 also can be other existing SIB or newly-increased SIB, as long as be different from SIBX, at this moment, need be mapped to and send to the terminal after SI goes up.
Increase by two new SIB, be designated as SIB9 and SIB10 respectively.After base station operational version A carries out resource allocation, form signaling and be placed on the SIB9, after base station operational version B carried out resource allocation, the signaling of formation was placed on the SIB10.SIB9 can be mapped to respectively on the different SI with SIB10, goes up transmission such as SI-2 and SI-3, and perhaps two are mapped on the identical SI simultaneously, goes up such as SI-3 and sends.
Increase the signaling that 2 SIB carry different schemes respectively separately, SIB9 and SIB10 have only an existence simultaneously like this, and other system information is had no influence.The signaling of option A is placed on the SIB9, is mapped to SI and goes up transmission, goes up transmission such as being mapped to SI-3, and the signaling of option b is placed on the SIB10, is mapped to SI and upward sends, and upward sends such as being mapped to SI-3.The transmission cycle of SIB9 that is added and SIB10 is consistent with SIB1 and SIB3 respectively, also can SIB9 and transmission cycle of SIB10 consistent, and consistent with SIB3.Any SIB of SIB3 representative except that SIB1.Wherein, the corresponding relation of SIB and/or SI and signaling is arranged mutually by base station and terminal in advance, and signaling is resolved according to the corresponding relation of SIB and/or SI and signaling in the terminal.
| The position | Mapping | |
| The option A signaling | ?SIB9 | SI is (like SI-2, SI-3) |
| The option b signaling | ?SIB10 | SI is (like SI-2, SI-3) |
Use identical existing SIB to send signaling.After base station operational version A carries out resource allocation, form signaling and be placed on upward transmission of a certain SIB, after base station operational version B carried out resource allocation, the formation signaling was placed on same SIB and upward sends, and this SIB can be existing arbitrary SIB.
Such as, after base station operational version A carries out resource allocation, form signaling and be placed on upward transmission of SIB1; After base station operational version B carries out resource allocation; Form signaling and also be placed on upward transmission of SIB1, perhaps the signaling of option A is placed on the SIB3, and SIB3 is mapped to SI-3 and goes up transmission; The signaling of option b is placed on the SIB3, is mapped to SI-3 and goes up transmission.
Use that existing SIB comes carrier signaling among the LTE, can reduce the number of SIB, but the termination environment divide use at present be which kind of scheme the time; Just must pass through additive method; For example blind Detecting signaling length from the length realization distinguishing signaling form of signaling, thereby is resolved signaling; Also can increase expense, the base station is sent indication information and is given the terminal, directly notifies the form of terminal signaling, and signaling is resolved according to this indication information in the terminal, and this indication information can be placed among the SIB1.
Method 4
Increase a new SIB, be designated as SIB9.After base station operational version A carries out resource allocation, form signaling and be placed on the SIB9, be mapped on the SI, go up like SI-3 and send, after base station operational version B carries out resource allocation, form signaling and be placed on the SIB9, be mapped on the SI, go up like SI-3 and send.
Increase a new SIB9 and come carrier signaling; Can reduce influence like this to other system information; But the termination environment divide use at present be which kind of allocative decision the time, just must be through additive method, for example blind Detecting signaling length; Realize the distinguishing signaling form from the length of signaling, thereby resolve signaling; Also can increase expense, send indication information and give the terminal, the form of notice terminal signaling in this indication information, signaling is resolved according to this indication information in the terminal, and this indication information can be placed among the SIB1.
| The position | Mapping | |
| The option A signaling | SIB9 | SI-3 |
| The option b signaling | SIB9 | SI-3 |
If do not support the SIB variable-length among the LTE, then have following principle:,, then can not discharge the resource of empty part if individual SIB is arranged partly for empty if all the elements of a SIB then can discharge the resource of this SIB for empty.
Use in the method for newly-increased SIB9 and SIB10, if base station operational version A is placed on signaling among the SIB9, so for the resource SIB10 of option b signaling preparation because of whole be sky, can directly discharge the shared resource of SIB10.
In above-mentioned each method; Option A is the resource allocation method of the option A mentioned in the background technology; Option b is the resource allocation method of the option b mentioned in the background technology, and the present invention is not limited to this, and the signaling of other its formation of resource allocation method also is applicable to signal transmission method of the present invention.In addition, being not limited to two kinds of resource allocation methods, also can be multiple resource allocation method, and the signaling that multiple resource allocation method forms is configured in multiple different SIB and goes up transmission, perhaps is configured in same SIB and goes up transmission.
Describe through an application example below.
Hypothesis has 8 different MBMS service areas for convenience, and only in the overlapping covering of a certain regional A, there is not overlapping covering in other places each other.As shown in Figure 2 be one by 8 the different overlapping covering of MBMS service area a-quadrants.The a-quadrant is a geographic area, has a base station in it at least, also has a lot of base stations.
Embodiment 1:
For the base station in the a-quadrant, owing to lay oneself open to the heavier overlapping region covered of degree, after contrast, base station operational version B carries out the resource distribution of oneself, so formed the signaling of certain format according to option b.
Method for using 1: as shown in Figure 3, the base station is placed on the signaling of option b on the SIB3, is mapped to and sends to the terminal on the SI-3; The resource of the last placement schemes A originally of SIB1 signaling possibly be released, and does not perhaps discharge, if do not discharge; Can on this resource, place a special indication signaling; For example complete 0, after the terminal parses, just know that this is an illegal command.Indicate according to system information at the terminal, confirms the resource location of SI-3, and read SIB3 and go up data, and the resolving resource configuration signal.
Method for using 2: the base station is placed on these signalings on the SIB10, is mapped to and sends to the terminal on the SI-3, and the resource of SIB9 can all be discharged.Indicate according to system information at the terminal, confirms the resource location of SI-3, and read SIB10 and go up data, and the resolving resource configuration signal.
Method for using 3: the base station is placed on signaling on the SIB3, is mapped to SI-3 and go up sends, and the terminal is informed through indication information by system, and this moment, the form of signaling was an option b, and the terminal resolves signaling according to the signaling format of option b.Perhaps the terminal is through blind checking method, judge the form of signaling from the length of signaling after, resolve signaling.
Method for using 4: the base station is placed on signaling on the SIB9, is mapped to SI-3 and go up sends, and the terminal is informed through indication information by system, and this moment, the form of signaling was an option b, and the terminal resolves signaling according to the signaling format of option b.Perhaps the terminal is through blind checking method, judge the form of signaling from the length of signaling after, resolve signaling.
Claims (9)
1. multimedia broadcasting and multicast transaction resource allocation signaling transmission method; It is characterized in that; Comprise: when the base station is said multimedia broadcasting and multicast service Resources allocation based on multiple resource allocation method; Every kind of resource allocation method forms corresponding signaling, and it is to send to the terminal among the SIB that its corresponding signaling of different resources collocation method is placed on system information block;
Wherein, with the multiplex mode of time division multiplexing as mixed carrier MBMS business and non-MBMS business; If said system information block is not system information block SIB1, then also need this system information block mapping is redispatched to the terminal after system information SI goes up.
2. the method for claim 1 is characterized in that, said system information block is existing system information block or newly-increased system information block.
3. according to claim 1 or claim 2 method is characterized in that, its corresponding signaling of different resources collocation method is placed on respectively in the different system information piece sends to the terminal.
4. method as claimed in claim 3 is characterized in that, the corresponding relation of said base station and terminal agreement system information block and/or system information and signaling, and signaling is resolved according to the corresponding relation of system information block and/or system information and signaling in said terminal.
5. method as claimed in claim 3 is characterized in that, it is said multimedia broadcasting and multicast service Resources allocation that two kinds of resource allocation methods are used in said base station, forms two kinds of signalings, is placed in two different system information pieces and sends.
6. according to claim 1 or claim 2 method is characterized in that, its corresponding signaling of different resources collocation method is placed in the identical system information block sends to the terminal.
7. method as claimed in claim 6 is characterized in that an indication information is also sent in said base station, indicates the form of the signaling in the said system information block, and the signaling in the said system information block is resolved according to said indication information in said terminal.
8. method as claimed in claim 6 is characterized in that, blind Detecting said signaling length in said terminal according to the form of said this signaling of signaling length judgement, is resolved said signaling.
9. according to claim 1 or claim 2 method is characterized in that one of them is system information block SIB1 or SIB2 for said system information block.
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| CN103096282B (en) * | 2011-11-07 | 2015-08-19 | 华为技术有限公司 | The method and apparatus of transmission network signaling |
| CN103582130B (en) * | 2012-07-19 | 2016-08-03 | 成都鼎桥通信技术有限公司 | Service quality and the collocation method of resource, base station and subscriber equipment |
| CN103326834A (en) * | 2013-05-21 | 2013-09-25 | 北京邮电大学 | HARQ retransmission method and device and HARQ retransmission receiving method and device |
| US10798642B2 (en) * | 2017-01-06 | 2020-10-06 | Mediatek Inc. | On-demand system information delivery procedure |
| CN107040977B (en) * | 2017-05-05 | 2019-11-12 | 宇龙计算机通信科技(深圳)有限公司 | A kind of system information transmission method and relevant device |
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| WO2003094561A1 (en) * | 2002-05-06 | 2003-11-13 | Siemens Aktiengesellschaft | Method and radio communication system for transmitting user information as a service to several user stations |
| CN1728881A (en) * | 2004-07-29 | 2006-02-01 | 北京三星通信技术研究有限公司 | The method that control data sends |
| CN101115281A (en) * | 2006-04-30 | 2008-01-30 | 华为技术有限公司 | System control message transmitting, receiving method and apparatus |
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| WO2003094561A1 (en) * | 2002-05-06 | 2003-11-13 | Siemens Aktiengesellschaft | Method and radio communication system for transmitting user information as a service to several user stations |
| CN1728881A (en) * | 2004-07-29 | 2006-02-01 | 北京三星通信技术研究有限公司 | The method that control data sends |
| CN101115281A (en) * | 2006-04-30 | 2008-01-30 | 华为技术有限公司 | System control message transmitting, receiving method and apparatus |
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