CN101645783B - Method for transmitting multimedia broadcast and multicast service resource allocation information - Google Patents

Abstract

The invention provides a method for transmitting multimedia broadcast and multicast service resource allocation information, which comprises that: a network side and user equipment agree a signaling structure indicating the MBMS resource allocation information, and the signaling structure comprises indication of a period of a wireless frame used for bearing MBMS in a modified period of an MBMS area, indication of the number of wireless frames allocated for the MBMS area in the modified period, indication of the number of subframes for bearing the MBMS allocated for each wireless frame in the MBMS area, and also comprises information for indicating the deviation of the wireless frames for bearing the MBMS allocated in the MBMS area in the modified period at least when a plurality of MBMS areas cover the same area repeatedly; and the network side sends the configured signaling structure in an agreement mode, and the user equipment analyzes the signaling structure in the agreement mode after receiving the signaling structure. The method improves the flexibility of resource allocation, and avoids excessive allocation furthest.

Description

The method of a kind of transmitting multimedia broadcast and multicast service resource allocation information

Technical field

The present invention relates to field of wireless communication, particularly the method for transmitting multimedia broadcast and multicast service resource allocation information in the mixed carrier system.

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 emerge, various high bandwidth multimedia services constantly occur, as video conference, television broadcasting, video request program, advertisement, online education, interactive game etc., satisfy the business demand that the mobile subscriber constantly rises on the one hand, also bring new business growth point simultaneously for mobile operator.These mobile multi-media services require a plurality of users can receive identical data simultaneously, compare with general data, 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, abbreviation 3GPP) multimedia broadcasting and multicast service (Multimedia Broadcast Multicast Service have been proposed, be called for short MBMS), this business is a kind of technology that transmits data from a data source to a plurality of targets, thereby realize 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 the classes of messages multicast and the broadcasting of plain text low rate, and can also realize the broadcasting and the multicast of high-speed multimedia business, multiple rich video, audio frequency and multimedia service are provided, this has complied with the trend of following mobile data development 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 mixed carrier 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 (unicast business).In mixed carrier carrying MBMS business procedure, will there be the situation of two types the same carrier wave of service integration like this.How to allow two classes 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 in mixed carrier carrying MBMS business and the non-MBMS business procedure, two class business multiplexing with FDM (Frequency-Division Multiplexing, frequency division multiplex), TDM (Time-Division Multiplexing, time division multiplexing) and FDM/TDM hybrid multiplex mode are main.At present, industry is that main multiplex mode is studied with TDM.This patent is also with the multiplex mode of TDM as mixed carrier MBMS business and non-MBMS business.

MBMS business and non-MBMS business are in carrying out the TDM multiplex process, need take into account many-sided factor, comprise: to influence, UE (User Equipment, subscriber equipment) power saving, excessively configuration (over allocation), many-sided influences such as scheduling granularity, overhead and dispatching flexibility of unicast service time delay.A kind of comparatively reasonable configuration method is to use the mode of Two-level (dual unit) to be configured at present, as shown in Figure 1:

The method of Two-level is to use 2 grades of parameters to define to indicate the position of the concrete subframe of carrying MBMS business, and is specific as follows:

On the radio frames rank (macro-level), operation parameter N is with 2^NIndividual radio frames is the distribution of dispersing in the cycle, and the value of N uses the mode of 3bit to realize; In addition, for fear of the interference problem that many MBMS region overlapping is brought, other uses 3bit to realize side-play amount (Offset) on the radio frames level allocation in different MBMS zone;

Sub-frame configuration (microscopic level) also uses the mode of 3bit to realize, the concrete size of 3bit is represented the continuous number of sub-frames from subframe #1 (removing outside the #0).

Use this kind method on overhead and flexible configuration degree, to find good balance; And mix the employing discrete way at the branch of radio frames, adopt centralized system on the sub-frame allocation, like this can be to the time delay influence of unicast service with receive between the UE power saving of MBMS business and form the advantage that remedies mutually; The modification cycle is configured to the requirement that 320ms has satisfied the scheduling granularity.But the problem of resource allocation dumb (un-allocation) when the maximum drawback of using this kind method at present covers with different MBMS region overlappings as over-allocation (over-allocation).Because the restriction of placement algorithm can occur but configuring the situation of 160 subframes when system needs to dispose 129 multicast subframes in the 320ms modification cycle, has excessively disposed 31 subframes, this has just caused a large amount of waste of radio resources.For the very valuable wireless communication system of Radio Resource, this is not allowed to.Resource allocation is dumb when different MBMS region overlappings cover, if the MBMS zone of repeating to cover is more, then this method just can't realize distribution.

Summary of the invention

The technical problem to be solved in the present invention provides the method for a kind of transmitting multimedia broadcast and multicast service resource allocation information, has solved the problem that can't finish distribution under dumb and some situation of resource allocation when repeating to cover.

In order to address the above problem, the invention provides the method for a kind of transmitting multimedia broadcast and multicast service resource allocation information, comprising: the signaling structure of network side and subscriber equipment agreement indication multimedia broadcasting and multicast service MBMS resource allocation information;

Above-mentioned signaling structure comprises that indication MBMS zone was used to carry in cycle, indication modification cycle of radio frames of MBMS and is the radio frames quantity of above-mentioned MBMS region allocation, the indication sub-frame number that is used to carry MBMS for each radio frames distribution in above-mentioned MBMS zone in modification cycle in a modification cycle, when repeating to cover areal in a plurality of MBMS zone at least, above-mentioned signaling structure comprises also that indication MBMS zone distributes in a modification cycle is used to carry the offset information of the radio frames of MBMS;

Mode by agreement when above-mentioned network side sends the signaling structure of configuration sends, and after above-mentioned subscriber equipment is received above-mentioned signaling structure, resolves by the mode of agreement.

Further, indicate the sub-frame number that is used to carry MBMS of distributing for each radio frames in this MBMS zone in the modification cycle with 3 bits;

If the modification cycle is a M radio frames, the following used bit number average of several information of indication is no more than log₂M: indication MBMS zone is used to carry in cycle, one modification cycle of indication of the radio frames of MBMS for the radio frames quantity of this MBMS region allocation in a modification cycle and indicates this MBMS zone to be used to carry the offset information of the radio frames of MBMS in a modification cycle.

Further, if the above-mentioned modification cycle is 32 radio frames, the cycle that in a modification cycle, is used to carry the radio frames of MBMS with 3 bits indications MBMS zone, with being the radio frames quantity of this MBMS region allocation in 4 bits indications modification cycle, indicate this MBMS zone in a modification cycle, to be used to carry the offset information of the radio frames of MBMS with 3 bits.

Further, above-mentionedusefulness 3 bits indication MBMS zone is used to carry the radio frames of MBMS in a modification cycle cycle is meant, remember that 3 pairing decimal system numerical value of binary code are N, when N≤5, the radio frames quantity of per two adjacent radio frames interbody spacers is 2^N-1, the radio frames quantity of distributing in the corresponding modification cycle when N equals 6 or 7 is greater than 16 situation, and this moment, the radio frames quantity of per two adjacent radio frames interbody spacers was 0;

Above-mentionedusefulness 4 bits are indicated in the modification cycle and are meant for the radio frames quantity of this MBMS region allocation, when N≤5, add 1 with 4 pairing decimal system numerical value of binary code and be expressed as the radio frames quantity that this MBMS zone is distributed in a modification cycle, when N equals 6 or 7, add 17 with 4 pairing decimal system numerical value of binary code and be expressed as the radio frames quantity that this MBMS zone is distributed in a modification cycle;

The offset information that above-mentionedusefulness 3 bits indicate this MBMS zone to be used to carry the radio frames of MBMS in a modification cycle is meant, is used to carry the side-play amount of the initial radio frames of MBMS in a modification cycle with 3 these MBMS zones of the pairing decimal number value representation of binary code;

The sub-frame number of carrying MBMS for each radio frames in this MBMS zone being used to of distributing in above-mentionedusefulness 3 bits indication modification cycle is meant, with the sub-frame number that be used to carry MBMS of 3 pairing decimal number value representations of binary code for each radio frames distribution.

Further, above-mentioned signaling structure comprises that also the subframe of indication MBMS zone over-allocation discharges information.Further, indicate the subframe of above-mentioned MBMS zone over-allocation to discharge information with 3 bits.

Further, above-mentionedusefulness 3 bits indicate the subframe release information of this MBMS zone over-allocation to be meant, when occurring over-allocation with 3 these MBMS zones of the pairing decimal number value representation of binary code in resource allocation process, need the sub-frame number that discharges.

Further, under FDD or tdd mode, what discharge is the subframe that is used to carry MBMS in last radio frames or first radio frames, and the subframe that last in this last radio frames or first radio frames is used to carry MBMS begins to discharge forward, up to reaching the sub-frame number that needs release, or the subframe that in this last radio frames or first radio frames first is used to carry MBMS begins to discharge backward, needs the sub-frame number that discharges up to reaching.

Further, if the above-mentioned modification cycle is a M radio frames, with being no more than log₂It is interior regional in the past towards the radio frames quantity of back distribution for MBMS that the pairing decimal system numerical value of the binary code of M position adds modification cycle of 1 expression, perhaps is illustrated in and calculates the radio frames quantity of not distributing to described MBMS zone in the modification cycle from behind forward.

Further, when having only a MBMS zone to cover areal, if this signaling structure do not comprise indication MBMS zone and be used to carry the offset information of the radio frames of MBMS in a modification cycle, network side and subscriber equipment are arranged the original position that this MBMS zone is used to carry the radio frames of MBMS.

In sum, the invention provides the method for a kind of transmitting multimedia broadcast and multicast service resource allocation information, improved the flexibility of resource allocation, and farthest avoided the situation of over-allocation, moreover the subframe that the present invention indicates the information of MBMS configuration can also comprise over-allocation discharges information, therefore, also the subframe of over-allocation can be discharged even over-allocation occurs, avoided the waste of resource.

Description of drawings

Fig. 1 is the schematic diagram that uses dual unit configuration multicast subframe in the prior art;

Fig. 2 is that this method signaling structure is formed schematic diagram;

Fig. 3 a is a LTE FDD frame structure schematic diagram;

Fig. 3 b is a LTE tdd frame structural representation;

Fig. 4 is that 3 different SFN region overlappings cover schematic diagram;

Fig. 5 is the application example that the overlapping coverage condition among Fig. 4 is carried out resource allocation;

Fig. 6 is the application example that under the fdd mode the overlapping coverage condition among Fig. 4 is carried out resource allocation;

Fig. 7 is the application example that under the tdd mode the overlapping coverage condition among Fig. 4 is carried out resource allocation.

Embodiment

The invention provides the method for a kind of transmitting multimedia broadcast and multicast service resource allocation information, comprise: the signaling structure of network side and UE agreement indication MBMS resource allocation information, this signaling structure comprises that indication MBMS zone is used to carry the cycle (periodicity) of the radio frames of MBMS in a modification cycle, indicating in the modification cycle is the radio frames quantity of this MBMS region allocation, indicate the sub-frame number that is used to carry MBMS of distributing for each radio frames in this MBMS zone in the modification cycle, when repeating to cover areal in a plurality of MBMS zone at least, this signaling structure comprises that also indication MBMS zone is used to carry the offset information (offset) of the radio frames of MBMS in a modification cycle, this signaling structure can also comprise the subframe of indicating over-allocation and discharge information, mode by agreement when network side sends the signaling structure that disposes sends, after UE receives signaling structure, resolve by the mode of agreement.The order of each several part information in signaling structure do not limit.The information of indication MBMS resource distribution can send in the sub-district by system broadcast message.

The signaling structure that the present invention indicates the MBMS resource allocation information is as shown in Figure 2:

Wherein indicate the MBMS zone in a modification cycle, to be used to carry the cycle of the radio frames of MBMS, indicate in a modification cycle, in the radio frames for this MBMS region allocation, the radio frames quantity of per two adjacent radio frames interbody spacers;

Wherein indicate in the modification cycle to be the radio frames quantity of this MBMS region allocation, indicate in the modification cycle, be the radio frames quantity that is used to carry MBMS of this MBMS region allocation;

Wherein indicate the MBMS zone in a modification cycle, to be used to carry the offset information of the radio frames of MBMS, indicate the MBMS zone is used to carry the initial radio frames of MBMS in a modification cycle side-play amount, the i.e. original position of the radio frames of Fen Peiing, when having only a MBMS zone to cover areal, can not comprise this part information, this moment, network side and UE can arrange the original position that this MBMS zone is used to carry the radio frames of MBMS, for example can but to be not limited to first interior radio frames of the modification cycle of arranging be initial radio frames.

Wherein indicate the sub-frame number that is used to carry MBMS of distributing for each radio frames in this MBMS zone in the modification cycle, be indicated as being the sub-frame number that is used to carry MBMS that each radio frames in this MBMS zone is distributed;

Wherein indicate the subframe of over-allocation to discharge information, indicate the sub-frame number that need discharge when over-allocation appears in this MBMS zone.

The used bit number of each several part needs to determine according to the length in the modification cycle that is provided with that if the modification cycle is a M radio frames, the following used bit number average of several information of indication is no more than log₂M: the radio frames that indication distributes is used to carry in cycle, one modification cycle of indication of the radio frames of MBMS for the radio frames quantity of this MBMS region allocation in a modification cycle and indicates this MBMS zone to be used to carry the offset information of the radio frames of MBMS in a modification cycle.Consider the factor of MBMS service dispatching granularity, the modification cycle is generally 320ms in LTE (Long Term Evolution), corresponding 32 radio frames, the present invention for convenience of description, be that 32 radio frames are that example is described all, but modification cycle still available the inventive method when other length is determined the used bit number of each several part with the modification cycle.

Can indicate the MBMS zone in a modification cycle, to be used to carry the cycle of the radio frames of MBMS with 3bit.One parameter N is set, and 3 pairing decimal system numerical value of binary code are the value of N; N has 8 kinds of values, and can appoint the cycles of getting wherein 6 kinds of expression radio frames is 2^NThe situation of (0≤N≤5) for convenience of description, can establish the radio frames quantity of distributing in the corresponding modification cycle and be less than or equal to 16 situation when N≤5, and this moment is with 2^NIndividual radio frames is the distribution of dispersing in the cycle, and promptly in the radio frames of Fen Peiing, the radio frames quantity of per two adjacent radio frames interbody spacers is 2^N-1, and the radio frames quantity of distributing in the corresponding modification cycle when N equals 6 or 7 is greater than 16 situation, therefore the radio frames quantity of per two adjacent radio frames interbody spacers is 0, i.e. interval not.3bit signaling format and represent implication as shown in table 1:

The value of table 1:N and the implication of representative thereof:

Can indicate in the modification cycle with 4bit is the radio frames quantity of a MBMS region allocation, and a parameter Q is set, and 4 pairing decimal system numerical value of binary code are the value of Q; Because the value of Q is 16 to the maximum, promptly can only be illustrated in the situation of distributing 16 radio frames in the modification cycle at most, therefore, need represent the situation that 32 kinds of radio frames are distributed with parameter N with parameter Q, the radio frames quantity that promptly is divided into distribution be less than or equal to 16 and radio frames quantity be described greater than 16 two kinds of situations, the radio frames quantity that is depicted as distribution as table 2.1 is less than or equal to 16 situation, and the radio frames quantity that is depicted as distribution as table 2.2 is greater than 16 situation.Indicating in the modification cycle is the radio frames quantity of a MBMS region allocation, can be with being no more than log₂It is interior regional in the past towards the radio frames quantity of back distribution for MBMS that the pairing decimal system numerical value of the binary code of M position adds modification cycle of 1 expression, perhaps is illustrated in to calculate forward from behind in the modification cycle and do not distribute to the regional radio frames quantity of described MBMS.

Table 2.1: when N≤5, the value of Q and the implication of representative thereof

The 4bit signaling format	Implication
		0000	Q=0: represent that the radio frames quantity of distributing in the modification cycle is 1
0001	Q=1: represent that the radio frames quantity of distributing in the modification cycle is 2
		0010	Q=2: represent that the radio frames quantity of distributing in the modification cycle is 3
0011	Q=3: represent that the radio frames quantity of distributing in the modification cycle is 4
		0100	Q=4: represent that the radio frames quantity of distributing in the modification cycle is 5
0101	Q=5: represent that the radio frames quantity of distributing in the modification cycle is 6
		0110	Q=6: represent that the radio frames quantity of distributing in the modification cycle is 7
0111	Q=7: represent that the radio frames quantity of distributing in the modification cycle is 8
		1000	Q=8: represent that the radio frames quantity of distributing in the modification cycle is 9
1001	Q=9: represent that the radio frames quantity of distributing in the modification cycle is 10
		1010	Q=10: represent that the radio frames quantity of distributing in the modification cycle is 11
1011	Q=11: represent that the radio frames quantity of distributing in the modification cycle is 12
		1100	Q=12: represent that the radio frames quantity of distributing in the modification cycle is 13
1101	Q=13: represent that the radio frames quantity of distributing in the modification cycle is 14
		1110	Q=14: represent that the radio frames quantity of distributing in the modification cycle is 15
1111	Q=15: represent that the radio frames quantity of distributing in the modification cycle is 16

From table 2.1 as can be seen, when N≤5,4 pairing decimal system numerical value of binary code (being the value of Q) add 1, and to be in the modification cycle be the radio frames quantity of a MBMS region allocation.Distributing to the radio frames number of MBMS can also calculate forward from behind, for example when N=001, if when radio frames quantity is Q=1011 from after calculate forward, then this MBMS zone radio frames quantity of expression distribution is 4, can distribute to the decimal number that the professionalradio frames quantity 16 of MBMS deducts the Q correspondence with maximum in the cycle of N=001 correspondence.

Table 2.2: when N=6 or 7, the value of Q and the implication of representative thereof

The 4bit signaling format	Implication
		0000	Q=0: represent that the radio frames quantity of distributing in the modification cycle is 17
0001	Q=1: represent that the radio frames quantity of distributing in the modification cycle is 18
		0010	Q=2: represent that the radio frames quantity of distributing in the modification cycle is 19
0011	Q=3: represent that the radio frames quantity of distributing in the modification cycle is 20
		0100	Q=4: represent that the radio frames quantity of distributing in the modification cycle is 21
0101	Q=5: represent that the radio frames quantity of distributing in the modification cycle is 22
		0110	Q=6: represent that the radio frames quantity of distributing in the modification cycle is 23
0111	Q=7: represent that the radio frames quantity of distributing in the modification cycle is 24
		1000	Q=8: represent that the radio frames quantity of distributing in the modification cycle is 25
1001	Q=9: represent that the radio frames quantity of distributing in the modification cycle is 26
		1010	Q=10: represent that the radio frames quantity of distributing in the modification cycle is 27
1011	Q=11: represent that the radio frames quantity of distributing in the modification cycle is 28
		1100	Q=12: represent that the radio frames quantity of distributing in the modification cycle is 29
1101	Q=13: represent that the radio frames quantity of distributing in the modification cycle is 30
		1110	Q=14: represent that the radio frames quantity of distributing in the modification cycle is 31
1111	Q=15: represent that the radio frames quantity of distributing in the modification cycle is 32

From table 2.2 as can be seen, when N=6 or 7,4 pairing decimal system numerical value of binary code (being the value of Q) add 17, and to be in the modification cycle be the radio frames quantity of a MBMS region allocation.Distributing to the radio frames number of MBMS can also calculate forward from behind, for example when N=110, if when radio frames quantity is Q=1011 from after calculate forward, then this MBMS zone radio frames quantity of expression distribution is 21, can distribute to the decimal number that the professional radio frames quantity 32 of MBMS deducts the Q correspondence with maximum in the cycle of N=001 correspondence.

Can indicate a MBMS zone in the modification cycle to be used to carry the offset information of the radio frames of MBMS with 3bit, a parameter M is set, 3 pairing decimal system numerical value of binary code be the value of M; 3 pairing decimal system numerical value of binary code (being the value of M) are the MBMS zone is used to carry the initial radio frames of MBMS in a modification cycle side-play amount, the initial radio frame number in MBMS zone needs to determine according to the numbering of radio frames, if radio frames is from 0 open numbering, the value of M is the initial radio frame number in MBMS zone, if radio frames is from 1 open numbering, the value of M adds the 1 initial radio frame number that is the MBMS zone, and shown in the table 3 is the situation of radio frames from 0 open numbering.

Show the signaling format of 3:3bit and represent implication

The 3bit signaling format	Offset information is described
		000	Side-play amount is 0 radio frames, and promptly initial radio frames is 0#
001	Side-play amount is 1 radio frames, and promptly initial radio frames is 1#
		010	Side-play amount is 2 radio frames, and promptly initial radio frames is 2#
011	Side-play amount is 3 radio frames, and promptly initial radio frames is 3#
		100	Side-play amount is 4 radio frames, and promptly initial radio frames is 4#
101	Side-play amount is 5 radio frames, and promptly initial radio frames is 5#
		110	Side-play amount is 6 radio frames, and promptly initial radio frames is 6#
111	Side-play amount is 7 radio frames, and promptly initial radio frames is 7#

Can indicate in the modification cycle sub-frame number that is used to carry MBMS of each radio frames distribution that is a MBMS zone with 3bit, 3 pairing decimal system numerical value of binary code are the sub-frame number that is used to carry MBMS that each radio frames is distributed, sub-frame allocation quantity under the table 4.1 expression fdd mode, divide timing generally to adopt the continuous dispensing mode, initial subframe can but be not limited to be first can be used in the carrying MBMS subframe, be depicted as FDD frame structure schematic diagram as Fig. 3 a, wherein, 0# (subframe 0), 4# (subframe 4) and 5# (subframe 5) do not carry MBMS, so, 1# (subframe 1) is initial subframe, distribute 2 subframes as 010 expression, because of initial subframe is 1# (subframe 1), therefore the subframe of distributing is 1# (subframe 1) and 2# (subframe 2), 100 expressions distribute 4 subframes, distribute 4 subframes, i.e. 1# (subframe 1) backward successively from 1# (subframe 1) beginning, 2# (subframe 2), 3# (subframe 3) and 6# (subframe 6).

The sub-frame allocation quantity of 3bit signaling format and representative under the table 4.1:FDD pattern

The 3bit signaling format	Sub-frame allocation quantity
		000	Reserve
001	Distribute 1 subframe that is used to carry MBMS
		010	Distribute 2 subframes that are used to carry MBMS
011	Distribute 3 subframes that are used to carry MBMS
		100	Distribute 4 subframes that are used to carry MBMS
101	Distribute 5 subframes that are used to carry MBMS
		110	Distribute 6 subframes that are used to carry MBMS
111	Distribute 7 subframes that are used to carry MBMS

The information of the sub-frame allocation quantity under the table 4.2 expression tdd mode, divide timing generally to adopt the continuous dispensing mode, initial subframe can but be not limited to be first can be used in the carrying MBMS subframe, be depicted as the tdd frame structural representation as Fig. 3 b, wherein, 0# (subframe 0), 1# (subframe 1), 2# (subframe 2), 5# (subframe 5) and 6# (subframe 6) do not carry MBMS, so, 3# (subframe 3) is initial subframe, the sub-frame number of the decimal system numerical value of binary code correspondence for distributing, distribute 2 subframes as 010 expression, because of initial subframe is 3# (subframe 3), therefore the subframe of distributing is 3# (subframe 3) and 4# (subframe 4), and 100 expressions distribute 4 subframes, distribute 4 subframes, i.e. 3# (subframe 3) backward successively from 3# (subframe 3) beginning, 4# (subframe 4), 7# (subframe 7) and 8# (subframe 8).

The sub-frame allocation quantity of 3bit signaling format and representative under the table 4.2:TDD pattern

The 3bit signaling format	Sub-frame allocation quantity
		000	Reserve
001	Distribute 1 subframe that is used to carry MBMS
		010	Distribute 2 subframes that are used to carry MBMS
011	Distribute 3 subframes that are used to carryMBMS
		100	Distribute 4 subframes that are used to carry MBMS
101	Distribute 5 subframes that are used to carry MBMS
		110	Reserve
111	Reserve

Can also indicate the subframe of over-allocation to discharge information with 3bit, promptly describe in this MBMS zone the sub-frame number that need discharge when in resource allocation process, over-allocation occurring.3 pairing decimal system numerical value of binary code is needs the sub-frame number that discharges in the MBMS zone, what at first need to arrange to discharge is the subframe that is used to carry MBMS in which radio frames, can but what be not limited to discharge is to be used to carry the subframe that is used to carry MBMS in the subframe of MBMS or last radio frames in first radio frames, it also can be the subframe that certain radio frames in the middle of being positioned at is used to carry MBMS, during release, can be that the subframe that in last radio frames or first radio frames last is used to carry MBMS begins to discharge forward, up to reaching the sub-frame number that needs release, also can be that the subframe that in last radio frames or first radio frames first is used to carry MBMS begins to discharge backward, need the sub-frame number that discharges up to reaching.

What suppose table 5.1 and 5.2 agreements is to discharge the subframe that is used to carry MBMS in last radio frames, the decimal number of binary code correspondence is represented the sub-frame number of the over-allocation that needs discharge, there is not over-allocation as 000 expression, then do not need to discharge, 001 expression discharges last and is used to carry the subframe of MBMS;

3bit signaling format and implication (agreement discharges the subframe that is used to carry MBMS in last radio frames) under the table 5.1:FDD pattern

The 3bit signaling format	The sub-frame information that discharges
		000	There is not over-allocation
001	Discharge last 1 subframe that is used to carry MBMS of last radio frames
		010	Discharge last 2 subframes that are used to carry MBMS of last radio frames
011	Discharge last 3 subframes that are used to carry MBMS of last radio frames
		100	Discharge last 4 subframes that are used to carry MBMS of last radio frames
101	Discharge last 5 subframes that are used to carry MBMS of last radio frames
		110	Discharge last 6 subframes that are used to carry MBMS of last radio frames
111	Reserve

3bit signaling format and implication (agreement discharges the subframe that is used to carry MBMS in last radio frames) under the table 5.2:TDD pattern

The 3bit signaling format	The sub-frame information that discharges
		000	There is not over-allocation
001	Discharge last 1 subframe that is used to carry MBMS of last radio frames
		010	Discharge last 2 subframes that are used to carry MBMS of last radio frames
011	Discharge last 3 subframes that are used to carry MBMS of last radio frames
		100	Discharge last 4 subframes that are used to carry MBMS of last radio frames
101	Reserve
		110	Reserve
111	Reserve

Below further specify the present invention by application example, following SFN (single frequency network) zone is the MBMS zone:

Application example 1:

As shown in Figure 4, be a situation about typically covering by a plurality of SFN region overlappings, the area that is labeled as regional A among the figure is repeated to cover by 3 different SFN zones simultaneously.Need to give each SFN region allocation resource now.The MBMS that supposes SFN1, SFN2 and SFN3 zone needs sub-frame number respectively in each modification cycle be 36,18,16.

Can provide as shown in Figure 5 allocation plan according to the present invention, wherein, each lattice is represented a radio frames, and the radio frames that indicates numeral represents to distribute to the radio frames in this SFN zone, the sub-frame number that is used to carry MBMS of distributing in this radio frames of the numeral of mark.

It is as follows that such scheme is expressed formal description with signaling, and satisfy FDD and tdd mode simultaneously:

Because SFN1, the regional required radio frames number average of SFN2 and SFN3 is less than 16, so parameter N≤5, the value that is N is { 000,001,010,011,100, in the 101} scope, the radio frames quantity of the distribution that the value of corresponding Q is represented is shown in table 2.1, the configuration sequence of supposing each several part information in the signaling structure is used to carry the cycle of the radio frames of MBMS in a modification cycle for indication, indicating in the modification cycle is the radio frames quantity of this MBMS region allocation, indication MBMS zone is used to carry the offset information of the radio frames of MBMS in a modification cycle, indicate the sub-frame number that is used to carry MBMS of distributing for each radio frames in this MBMS zone in the modification cycle, then the signaling structure of SFN1 correspondence is 0011011111011 in the application example 1, the signaling structure of SFN2 correspondence is 0100101010011, and the signaling structure of SFN3 correspondence is 0100011100100.

Application example 2:

Still be example with Fig. 4, regional A is still simultaneously repeated to cover by 3 different SFN zones, and the MBMS that supposes SFN1, SFN2 and SFN3 zone needs sub-frame number respectively in each modification cycle be 133,15,4.

Can provide as shown in Figure 6 and Figure 7 allocation plan according to the present invention respectively for FDD and TDD, wherein, each lattice is represented a radio frames, the radio frames that indicates numeral represents to distribute to the radio frames in this SFN zone, the sub-frame number that is used to carry MBMS of distributing in this radio frames of the numeral of mark.

Under fdd mode, it is as follows that such scheme is expressed formal description with signaling:

For the SFN1 zone, the radio frames quantity of distribution is 19, greater than 16, therefore, the value of parameter N is 6 or 7, is 110 or 111, the radio frames quantity of the represented distribution of value of corresponding Q is shown in table 2.2, so the value of Q is 2, and corresponding binary code is 0010.

And for SFN2 and SFN3, required radio frames quantity is respectively 3 and 2, all less than 16, so the value of parameter N is in that { 000,001,010,011,100, in the 101} scope, the radio frames quantity of the distribution that the value of corresponding Q is represented is shown in table 2.1.

Under tdd mode, it is as follows that such scheme is expressed formal description with signaling:

For the SFN1 zone, the radio frames quantity of distribution is 27, greater than 16, therefore, the value of parameter N is 6 or 7, is 110 or 111, the radio frames quantity of the represented distribution of value of corresponding Q is shown in table 2.2, so the value of Q is 10, and corresponding binary code is 1010.135 subframes have been disposed altogether for the SFN1 zone like this, so having taken place, over-allocation needs to add the signaling that the over-allocation subframe discharges, here 2 over-allocation subframes have appearred in SFN1, so over-allocation subframe release signaling is 010, expression discharges last two subframes of last radio frames.

And for SFN2 and SFN3, required radio frames quantity is respectively 3 and 1, all less than 16, so the value of parameter N is in that { 000,001,010,011,100, in the 101} scope, the radio frames quantity of the distribution that the value of corresponding Q is represented is shown in table 2.1.Because over-allocation does not appear in SFN2 and SFN3, therefore can not dispose the information that expression over-allocation subframe discharges, receive the information of expression MBMS resource distribution as UE after, can obtain the accurate information of signaling structure this moment by other modes, for example can in the message that UE sends, increase the indicating bit that a subframe that is used to indicate whether to exist over-allocation discharges information at network side, UE identifies the subframe release the information whether signaling structure that disposes this moment exists over-allocation by this indicating bit after receiving this message, UE can also be known by the method for blind Detecting, promptly at first resolve once, if occur wrong then by the subframe release information analysis that does not have over-allocation by the situation of the subframe release information that has over-allocation.

Can know by above-mentioned two application examples: prior art can't be carried out resource distribution maybe must be by the problem of over-allocation ability part solution, the present invention then can finish above-mentioned configuration under the situation that over-allocation do not occur, improve the flexibility of resource allocation, and farthest avoided the situation of over-allocation.In the application example 2, SFN1 zone operation parameter N and parameter Q define the radio frames quantity of distribution jointly, on the basis of improving the resource allocation flexibility ratio, have farthest reduced overhead.Further, the subframe that the present invention indicates the information of MBMS configuration can also comprise over-allocation discharges information, like this, also the subframe of over-allocation can be discharged even over-allocation occurs, has avoided the waste of resource.

Claims (10)

1. the method for transmitting multimedia broadcast and multicast service resource allocation information is characterized in that, comprising: the signaling structure of network side and subscriber equipment agreement indication multimedia broadcasting and multicast service MBMS resource allocation information;

Described signaling structure comprises that indication MBMS zone was used to carry in cycle, indication modification cycle of radio frames of MBMS and is the radio frames quantity of described MBMS region allocation, the indication sub-frame number that is used to carry MBMS for each radio frames distribution in described MBMS zone in modification cycle in a modification cycle, when repeating to cover areal in a plurality of MBMS zone at least, described signaling structure comprises also that indication MBMS zone distributes in a modification cycle is used to carry the offset information of the radio frames of MBMS;

Mode by agreement when described network side sends the signaling structure of configuration sends, and after described subscriber equipment is received described signaling structure, resolves by the mode of agreement.

2. the method for claim 1 is characterized in that:

Indicate the sub-frame number that is used to carry MBMS of distributing for each radio frames in described MBMS zone in the modification cycle with 3 bits;

If the modification cycle is a M radio frames, the following used bit number average of several information of indication is no more than log₂M: indication MBMS zone is used to carry in cycle, one modification cycle of indication of the radio frames of MBMS for the radio frames quantity of described MBMS region allocation in a modification cycle and indicates described MBMS zone to be used to carry the offset information of the radio frames of MBMS in a modification cycle.

3. method as claimed in claim 2 is characterized in that:

If the described modification cycle is 32 radio frames, the cycle that in a modification cycle, is used to carry the radio frames of MBMS with 3 bits indications MBMS zone, with being the radio frames quantity of described MBMS region allocation in 4 bits indications modification cycle, indicate described MBMS zone in a modification cycle, to be used to carry the offset information of the radio frames of MBMS with 3 bits.

4. method as claimed in claim 3 is characterized in that:

Described usefulness 3 bits indication MBMS zone is used to carry the radio frames of MBMS in a modification cycle cycle is meant, remembers that 3 pairing decimal system numerical value of binary code are N, and when N≤5, the radio frames quantity of per two adjacent radio frames interbody spacers is 2^N-1, the radio frames quantity of distributing in the corresponding modification cycle when N equals 6 or 7 is greater than 16 situation, and this moment, the radio frames quantity of per two adjacent radio frames interbody spacers was 0;

Described usefulness 4 bits are indicated in the modification cycle and are meant for the radio frames quantity of described MBMS region allocation, when N≤5, add 1 with 4 pairing decimal system numerical value of binary code and be expressed as the radio frames quantity that described MBMS zone is distributed in a modification cycle, when N equals 6 or 7, add 17 with 4 pairing decimal system numerical value of binary code and be expressed as the radio frames quantity that described MBMS zone is distributed in a modification cycle;

The offset information that described usefulness 3 bits indicate described MBMS zone to be used to carry the radio frames of MBMS in a modification cycle is meant, is used to carry the side-play amount of the initial radio frames of MBMS in a modification cycle with 3 the described MBMS of the pairing decimal number value representation of binary code zones;

The sub-frame number of carrying MBMS for each radio frames in described MBMS zone being used to of distributing in described usefulness 3 bits indication modification cycle is meant, with the sub-frame number that be used to carry MBMS of 3 pairing decimal number value representations of binary code for each radio frames distribution.

5. method as claimed in claim 2 is characterized in that:

Described signaling structure comprises that also the subframe of indication MBMS zone over-allocation discharges information.

6. method as claimed in claim 5 is characterized in that, also comprises:

Indicate the subframe of described MBMS zone over-allocation to discharge information with 3 bits.

7. method as claimed in claim 6 is characterized in that:

Described usefulness 3 bits indicate the subframe release information of described MBMS zone over-allocation to be meant, when occurring over-allocation with 3 the described MBMS of the pairing decimal number value representation of binary code zones in resource allocation process, need the sub-frame number that discharges.

8. method as claimed in claim 7 is characterized in that:

Under FDD or tdd mode, what discharge is the subframe that is used to carry MBMS in last radio frames or first radio frames, and the subframe that last in described last radio frames or first radio frames is used to carry MBMS begins to discharge forward, up to reaching the sub-frame number that needs release, or the subframe that in described last radio frames or first radio frames first is used to carry MBMS begins to discharge backward, needs the sub-frame number that discharges up to reaching.

9. method as claimed in claim 2 is characterized in that, also comprises:

If the described modification cycle is a M radio frames, with being no more than log₂It is interior regional in the past towards the radio frames quantity of back distribution for MBMS that the pairing decimal system numerical value of the binary code of M position adds modification cycle of 1 expression, perhaps is illustrated in and calculates the radio frames quantity of not distributing to described MBMS zone in the modification cycle from behind forward.

10. the method for claim 1 is characterized in that:

When having only a MBMS zone to cover areal, if described signaling structure do not comprise indication MBMS zone and be used to carry the offset information of the radio frames of MBMS in a modification cycle, network side and subscriber equipment are arranged the original position that described MBMS zone is used to carry the radio frames of MBMS.

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