CN101959135A - Resource indication method and enhanced base station - Google Patents
Resource indication method and enhanced base station Download PDFInfo
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- CN101959135A CN101959135A CN2009101597428A CN200910159742A CN101959135A CN 101959135 A CN101959135 A CN 101959135A CN 2009101597428 A CN2009101597428 A CN 2009101597428A CN 200910159742 A CN200910159742 A CN 200910159742A CN 101959135 A CN101959135 A CN 101959135A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
Abstract
The invention provides a resource indication method and an enhanced base station. The resource indication method is used for a multi-cell transmission mode of a multimedia broadcasting multicast system MBMS, and comprises the following steps of: acquiring the first number of subframes actually needed by MBMS service; determining an MSAP command, wherein the MSAP command is used for indicating a second number of initial subframes, and the second number is a minimum which is more than or equal to the first number in the number of the subframes which can be indicated by the MSAP indication method; when the first number is less than the second number, selecting a third number of over-allocation subframes from the initial subframes and generating a correction command which indicates the positions of the over-allocation subframes, wherein the third number is the difference of the second number and the first number; and transmitting the MSAP command and a correction command to a receiving end, indicating the receiving end, and scheduling subframes which are finally used for transmitting MBMS data in the period as subframes in the initial subframes except the over-allocation subframes. The resource indication method and the enhanced base station have the advantages of reducing energy consumption of a terminal and improving the resource utilization rate simultaneously.
Description
Technical field
The present invention relates to MBMS (Multimedia Broadcast/Multicast System, multimedia broadcast multicast system), particularly a kind of resource indicating method and enhanced base station.
Background technology
At LTE (Long Time Evolution, Long Term Evolution) MBMS is called as enhancement mode MBMS (EMBMS) in the system, in EMBMS, two kinds of transmission meanss have been defined: many sub-districts (Multi-cell) transmission means and single sub-district (Single-cell) transmission means.
Many sub-districts are transmitted the information of supporting many sub-districts and are merged, and can adopt synchronous driving, are referred to as MBSFN (Multicast/Broadcast Single Frequency Network, Multicast Broadcast Single Frequency Network) by this mode.In the broadcast system, the mode of SFN is widely adopted, and it is by a plurality of different transmitters, sends identical signal on identical frequency resource and identical time.By this radiation pattern, make that the information between many sub-districts can merge, thereby increase the availability of frequency spectrum of broadcasting.The channel architecture of MBSFN as shown in Figure 1, logic channel, transmission channel and physical channel that it shows MBSFN are described as follows in conjunction with Fig. 1.
Suppose a MBMS business (such as, the program of BTV-1 platform) corresponding logic channel, one or more logic channel MTCH can be mapped on the same transmission channel MCH, that is to say, can give the traffic assignments a bundle resource (Bundle Bit Rate) of a plurality of MBMS, these several business are shared this a bundle resource.The benefit of doing so mainly is in order to obtain spatial multiplexing gain.
The resource that MCH is shared is to represent by MSAP (MCH Subframe AllocationPattern, transmission channel sub-frame allocation pattern).
Be exemplified below in conjunction with Fig. 1, if MSAP={#1RF (#2 and #8 sub frame), #12RF (#2, #3 and #7 sub frame), #22RF (#3 and #9 sub frame) }, it is illustrated in (SP) lining dispatching cycle, and the 1st radio frames RF comprises the resource of MCH in the 12nd radio frames and the 22nd radio frames.Specific to subframe, the 2nd of the 1st radio frames and the 8th subframe are used for transmitting the MBMS data; On the 12nd radio frames the 2nd, the 3rd and the 7th subframe are used for transmitting the MBMS data.
According to the definition of 3GPP, each dispatching cycle, need MSAP of system broadcasts.Comprise 32 Radio Frame a dispatching cycle (320ms), each Radio Frame comprises 10 subframe, wherein, #0, #4, #5 and #9 subframe can not be used to pass the data of MBMS.That is to say, comprised 32*6=192bit the subframe (subframe) that may be used to transmit the MBMS data in each dispatching cycle.
Do accurate indication, the simplest way is exactly the form with bitmap, just indicate if be used to transmit the subframe of MBMS data with 1, otherwise, just indicate with 0.Like this, needed signaling consumption is 192/320ms=600bps.
Clearly, above-mentioned signaling consumption is bigger, in order to reduce the signaling consumption that is used to indicate, in the Release 8 of 3GPP, the indicating means of MSAP has been done as giving a definition:
MBSFN-SubframeConfiguration::＝SEQUENCE(SIZE
(1..maxMBSFN-Allocations))OF?SEQUENCE{
radioframeAllocationPeriod ENUMERATED{n1，n2，n4，n8，n16，n32}，
radioframeAllocationOffset INTEGER(0..7)，
subframeAllocation CHOICE{
oneFrame BIT?STRING(SIZE(6))，
fourFrames BIT?STRING(SIZE(24))
}
Wherein, MBSFN-SubframeConfiguration just represents that all distribute to the subframe of MBSFN, just MSAP.
This information is included among the SIB2 (System Information Type2, type 2 system informations) of system information, is transmitted by broadcast channel BCCH.
The sub for example below setting that MB SFN-SubframeConfiguration is described.
radioframeAllocationPeriod＝n4
radioframeAllocationOffset＝0，
subframeAllocation＝CHIOCE{oneFrame{101100}}
Above-mentioned setting shows, in a dispatching cycle, there are 4 Radio Frame that are spacedly distributed to comprise the subframe that is used to transmit the MBMS data, simultaneously, first Radio Frame in dispatching cycle comprises the subframe that is used to transmit the MBMS data, 3 subframes that are used to transmit the MBMS data are arranged, and concrete subframe is determined according to bitmap in each MBSFN RF.
Setting according to above-mentioned MBSFN-SubframeConfiguration, corresponding MSAP schematic diagram is as shown in Figure 2: wherein the monocline line grid of filling represents to comprise the radio frames of the subframe that is used to transmit the MBMS data, the grid that the rhombus lattice are filled represents to be used in the radio frames transmit the subframe of MBMS data, and the subframe that the grid that rectangular grid is filled is represented has been defined his usefulness, can't be used to transmit the MBMS data.
The setting of MBSFN-SubframeConfiguration is described with other example below.
radioframeAllocationPeriod＝n32
radioframeAllocationOffset＝0
subframeAllocation＝CHIOCE{fourFrames{1110011...}}
Above-mentioned setting shows in a dispatching cycle, have 32 Radio Frame to comprise the MBSFN subframe.And first Radio Frame in dispatching cycle comprises the subframe that is used to transmit the MBMS data, in per 4 radio frames 17 subframes that are used to transmit the MBMS data is arranged.
Fig. 3 represents that these 17 are used for transmitting the position of the subframe of MBMS data 4 radio frames.
In conjunction with top example as can be seen, the MSAP indicating means that defines among the 3GPP greatly reduces signaling consumption.
Yet the inventor finds that there is following shortcoming at least in prior art in the process that realizes the embodiment of the invention:
The MSAP indicating means that defines among the 3GPP can cause wasting of resources problem, illustrates as follows.
Suppose according to service feature, need distribute 137 subframes to transmit the MBMS data to MCH.Yet, because the restriction of SIB2 can only be indicated 136 or 144 subframes.According to the coboundary principle, can only select to indicate 144 subframes, but select after the indication 144, clearly indicated 7 subframes more, 7 subframes of many indications can't be used for transmitting useful data, have obviously caused the wasting of resources.
Summary of the invention
The purpose of this invention is to provide a kind of resource indicating method and enhanced base station, realize the accurate indication of resource, improve the utilance of resource.
To achieve these goals, the embodiment of the invention provides a kind of resource indicating method, is used for many cell transmission pattern of the MBMS of multimedia broadcast multicast system, wherein, comprising:
Service feature according to the MBMS business obtains first number, and described first number is the number of the subframe of the professional actual needs of described MBMS in the dispatching cycle;
Determine MSAP instruction according to described first number; Described MSAP instruction is used to indicate the initial subframe that is used for the MBMS transmission data of second number, and described second number is more than or equal to the minimum value of described first number in the number of subframes that can indicate of MSAP indicating means;
At described first number during less than described second number, from described initial subframe, select the over-allocation subframe of the 3rd number, and generating the revision directive of the described over-allocation subframe position of indication according to selection result, described the 3rd number is the difference of described second number and described first number;
Send described MSAP instruction and revision directive and arrive receiving terminal, indicate described receiving terminal, the subframe that finally is used for transmitting the MBMS data in dispatching cycle is the subframe of described initial subframe except that described over-allocation subframe.
Above-mentioned resource indicating method, wherein, described revision directive sends to described receiving terminal by broadcast channel or MBMS point to multiple spot control channel MCCH.
Above-mentioned resource indicating method, wherein, the described over-allocation subframe of from described initial subframe, selecting the 3rd number, and specifically comprise according to the revision directive that selection result generates the described over-allocation subframe position of indication:
From described initial subframe, select the over-allocation subframe of the 3rd number arbitrarily;
Determine the position of the over-allocation subframe of selection;
Generate first revision directive, described first revision directive comprises the sequence number of the radio frames at each described over-allocation subframe place, and the sequence number of each described over-allocation subframe in radio frames.
Above-mentioned resource indicating method, wherein, the described over-allocation subframe of from described initial subframe, selecting the 3rd number, and specifically comprise according to the revision directive that selection result generates the described over-allocation subframe position of indication:
From described initial subframe, select the over-allocation subframe of the 3rd number, in the described initial subframe, described over-allocation subframe continuous distribution;
Generation comprises the 4th revision directive of described the 3rd number, first sequence number and second sequence number;
Described first sequence number is the sequence number of the radio frames at first over-allocation subframe place;
Described second sequence number is the sequence number of described first over-allocation subframe in radio frames.
Above-mentioned resource indicating method, wherein, the described over-allocation subframe of from described initial subframe, selecting the 3rd number, and specifically comprise according to the revision directive that selection result generates the described over-allocation subframe position of indication:
From described initial subframe, select the subframe of the 3rd number as the over-allocation subframe, in last the 4th a number radio frames of described over-allocation subframe distribution in the radio frames of described MSAP instruction indication, in each described the 4th number radio frames, last the 5th a number subframe that belongs to described initial subframe is the over-allocation subframe; The amassing of described the 4th number and the 5th number is the 3rd number;
Generation comprises the 5th revision directive of described the 4th number and the 5th number.
Above-mentioned resource indicating method, wherein, the described over-allocation subframe of from described initial subframe, selecting the 3rd number, and specifically comprise according to the revision directive that selection result generates the described over-allocation subframe position of indication:
From described initial subframe, according to from back to front or vertical order select the subframe of the 3rd number as the over-allocation subframe successively;
Generation comprises the 6th revision directive of described the 3rd number.
To achieve these goals, the embodiment of the invention also provides a kind of enhanced base station, is used for many cell transmission pattern of the MBMS of multimedia broadcast multicast system, comprising:
The first number determination module is used for obtaining first number according to the service feature of MBMS business, and described first number is the number of the subframe of the professional actual needs of described MBMS in the dispatching cycle;
The first instruction generation module is used for determining MSAP instruction according to described first number; Described MSAP instruction is used to indicate the initial subframe that is used for the MBMS transmission data of second number, and described second number is greater than the minimum value of described first number in the number of subframes that can indicate of MSAP indicating means;
The second instruction generation module, be used at described first number during less than described second number, from described initial subframe, select the over-allocation subframe of the 3rd number, and generating the revision directive of the described over-allocation subframe position of indication according to selection result, described the 3rd number is the difference of described second number and described first number;
Sending module is used to send described MSAP instruction and revision directive and arrives receiving terminal, indicates described receiving terminal, and the subframe that finally is used for transmitting the MBMS data in dispatching cycle is the subframe of described initial subframe except that the subframe of described over-allocation;
Service Processing Module is used for utilizing the subframe of described initial subframe except that the subframe of described over-allocation to handle described MBMS business.
Above-mentioned enhanced base station, wherein, described revision directive sends to described receiving terminal by broadcast channel or MBMS point to multiple spot control channel MCCH.
Above-mentioned enhanced base station, wherein, the described second instruction generation module specifically comprises:
Be used for selecting arbitrarily the unit of the over-allocation subframe of the 3rd number from described initial subframe;
The unit that is used for the position of definite over-allocation subframe of selecting;
Be used to generate the unit of first revision directive, described first revision directive comprises the sequence number of the radio frames at each described over-allocation subframe place, and the sequence number of each described over-allocation subframe in radio frames.
Above-mentioned enhanced base station, wherein, the described second instruction generation module specifically comprises:
Be used for selecting the unit of the over-allocation subframe of the 3rd number from described initial subframe, in the described initial subframe, described over-allocation subframe continuous distribution;
Be used to generate the unit of the 4th revision directive that comprises described the 3rd number, first sequence number and second sequence number;
Described first sequence number is the sequence number of the radio frames at first over-allocation subframe place;
Described second sequence number is the sequence number of described first over-allocation subframe in radio frames.
Above-mentioned enhanced base station, wherein, the described second instruction generation module specifically comprises:
Be used for selecting the unit of the subframe of the 3rd number as the over-allocation subframe from described initial subframe, in last the 4th a number radio frames of described over-allocation subframe distribution in the radio frames of described MSAP instruction indication, in each described the 4th number radio frames, last the 5th a number subframe that belongs to described initial subframe is the over-allocation subframe; The amassing of described the 4th number and the 5th number is the 3rd number;
Be used to generate the unit of the 5th revision directive that comprises described the 4th number and the 5th number.
Above-mentioned enhanced base station, wherein, the described second instruction generation module specifically comprises:
Be used for from described initial subframe, according to from back to front or vertical order select the unit of the subframe of the 3rd number successively as the over-allocation subframe;
Be used to generate the unit of the 6th revision directive that comprises described the 3rd number.
The embodiment of the invention has following beneficial effect:
In the specific embodiment of the invention, by issuing revision directive on the basis of existing technology, this revision directive is used to indicate the positional information of over-allocation subframe, receiving terminal receives after the revision directive, can determine MSAP indication be used for transmit the MBMS data initial subframe cross the indication subframe, therefore, terminal can not go to receive data again on the over-allocation subframe, and this must reduce the energy consumption of terminal; Simultaneously, because terminal can not receive data from the over-allocation subframe,, can improve the utilance of resource so this over-allocation subframe can be used for the transmission of unicast service data.
Description of drawings
Fig. 1 is the schematic diagram of logic channel, transmission channel and the physical channel of MBSFN;
Fig. 2 is the schematic diagram of the indicated subframe of a kind of MSAP;
Fig. 3 is 17 and is used for transmitting the schematic diagram of the subframe of MBMS data in the position of 4 radio frames;
Fig. 4 is the schematic diagram of the resource indicating method of the embodiment of the invention;
Fig. 5 is the schematic diagram of the base station of the embodiment of the invention.
Embodiment
The resource indicating method of the embodiment of the invention and enhanced base station are used for many cell transmission mode of MBMS, it is by the down distributing resource indication field, be not used in the subframe that transmits the MBMS data among the indication Radio Frame,, improve the utilance of resource to realize accurate indication.
According to the definition among the 3GPP R8, it is as follows that all indications are used to transmit the number of subframe of MBMS data.
As above shown in the table, when the subframeAllocation territory is 1 radio frames.According to definition, per 1 SP dispatching cycle (320ms) can comprise 1,2,4,8 radio frames RF that are used to transmit the MBMS data, can comprise 1-6 subframe that is used to transmit the MBMS data among each Radio Frame again.Therefore, the number that all can be supported is used to transmit the subframe of MBMS data only need simply multiply each other and get final product.
And when being 4 radio frames in the subframeAllocation territory.According to definition, per 1 SP dispatching cycle (320ms) can comprise 16,32 radio frames RF that are used to transmit the MBMS data, can comprise 1-24 subframe that is used to transmit the MBMS data among per 4 Radio Frame again.Therefore, the number that all can be supported is used to transmit the subframe of MBMS data only need simply multiply each other and get final product.
Can find that according to above-mentioned description the number that indicated being used to of MSAP indicating means that defines among the 3GPP transmits the subframe of MBMS data is discontinuous, and is as follows:
1、2、3、4、5、6、8、10、12、16、20、24、32、40、...、192。
Because its discontinuity, in case the number of subframe that being used to of professional actual needs transmitted the MBMS data is not in above-mentioned set the time, according to the coboundary principle, can only from set, select greater than this actual number, but with the immediate number of this actual number, and send the pairing subframe indication of this number of determining to subscriber equipment, cause the over-allocation problem.
As can be seen, the difference between the adjacent element is less than or equal to 8 from above-mentioned set, that is to say, according to the MSAP indicating means that defines among the 3GPP, the number of the subframe of over-allocation is less than or equal to 7.
The resource indicating method of the embodiment of the invention comprises as shown in Figure 4:
Finally, the base station utilizes the described subframe that finally is used to transmit the MBMS data to handle described MBMS business waiting for transmission.
The enhanced base station of the embodiment of the invention comprises as shown in Figure 5:
The first number acquisition module is used for obtaining first number according to the service feature of MBMS business waiting for transmission, and described first number is the number of the subframe of the professional actual needs of described MBMS in the dispatching cycle;
MSAP instructs generation module, be used for determining MSAP instruction according to the MSAP indicating means of described first number and 3GPP definition, described MSAP instruction be used to indicate in the dispatching cycle preliminary determine be used to transmit the number (second number) of initial subframe of MBMS data and the position of described initial subframe; Described second number is more than or equal to the minimum value of described first number in the number of subframes that can indicate of described MSAP indicating means;
Correcting module, be used for when described first number is not equal to described second number, from described initial subframe, select the over-allocation subframe of the 3rd number, and generating the revision directive of the described over-allocation subframe position information of indication according to selection result, described the 3rd number is the difference of second number and first number;
Sending module sends described MSAP instruction and revision directive and arrives user terminal, and indicating user terminal finally is used for transmitting the MBMS data in described dispatching cycle subframe is the subframe of described initial subframe except that described over-allocation subframe;
Service Processing Module utilizes the described subframe that finally is used to transmit the MBMS data to handle described MBMS business waiting for transmission.
Specifically how to realize being specifically described with regard to correcting module below.
＜implementation one 〉
In implementation one, correcting module is specified the over-allocation subframe of the 3rd number arbitrarily, and it specifically comprises:
First selected cell, any over-allocation subframe of selecting the 3rd number from described initial subframe;
Position determination unit, the position of definite over-allocation subframe of selecting;
The first instruction generation unit is used to generate first revision directive; Described first revision directive comprises the sequence number of the radio frames at each over-allocation subframe place, and the sequence number in radio frames of each over-allocation subframe self.
Consider and have only 7 subframes at most, the position of subframe comprises the information of following two aspects:
The sequence number of the radio frames at subframe place shows the position of the radio frames at its place;
The sequence number of subframe self shows its position in radio frames;
According to existing regulation, comprise 32 radio frames a dispatching cycle, and each radio frames comprises 10 subframes, thus for a subframe if accurately indication need:
The sequence number (sequence number of first radio frames is 0) of the radio frames at 5Bits indication subframe place;
The sequence number of 4Bits indication subframe in radio frames;
So a subframe needs 9bits to come assigned address;
So in the mode one, may need 63bits to indicate the position of the over-allocation subframe of any appointment the 3rd number at most.
Illustrate as follows:
The number of supposing the subframe of current business actual needs is 45, supposes that definite MSAP is as follows:
radioframeAllocationPeriod＝n4
radioframeAllocationOffset＝0，
subframeAllocation＝CHIOCE{oneFrame{111111}}
Owing to have 3 over-allocation subframes, suppose that the over-allocation subframe of selection is:
The 2nd subframe in the 1st radio frames;
The 3rd subframe in the 5th radio frames;
The 4th subframe in the 29th radio frames;
Can be following form then according to mode one, the first revision directive:
000000010001000011111000100
And receiving terminal can select 5 bit to determine the sequence number of the radio frames at first over-allocation subframe place earlier, selects 4 bit to determine the sequence number of first over-allocation subframe in radio frames then, and the rest may be inferred, can determine all over-allocation subframes.
Certainly, how arranging as for above-mentioned information, only need both sides to consult and get final product, also can be following order:
000000010011100001000110100。
And receiving terminal is determined the sequence number of the radio frames at first, second and the 3rd over-allocation subframe place according to preceding 15 bit, determine first, second and the sequence number of the 3rd over-allocation subframe in radio frames according to back 12 bit then, can determine the over-allocation subframe according to above-mentioned two information.
＜implementation two 〉
In the implementation one, may need 63bits to indicate the positional information of over-allocation subframe at most,, now propose second kind of implementation of correcting module in order to reduce the length of revision directive.
In implementation two, correcting module specifically comprises:
Second selected cell, the subframe of selecting the 3rd number from described initial subframe be as the over-allocation subframe, the sequence number of all described over-allocation subframes in radio frames identical (show in the radio frames over-allocation subframe can only be arranged);
The second instruction generation unit is used to generate second revision directive, and described second revision directive comprises a sequence number in radio frames, and the sequence number of the radio frames at each described over-allocation subframe place.
So in the implementation two, may need the bit of following number to indicate the position of over-allocation subframe at most:
The sequence number of over-allocation subframe in radio frames, owing to comprise 10 subframes in a radio frames, and all over-allocation subframes have identical sequence number, so this part only needs 4bits;
The sequence number of the radio frames at over-allocation subframe place, owing to comprise 32 radio frames in a dispatching cycle, the sequence number of the radio frames at each over-allocation subframe place needs 5bits.
Therefore, the bit that may need at most is 4+5*7=39.
For first kind of mode may need 63bits at most, reduced the length of revision directive.
Illustrate as follows:
The number of supposing the subframe of current business actual needs is 45, supposes that definite MSAP is as follows:
radioframeAllocationPeriod＝n4
radioframeAllocationOffset＝0，
subframeAllocation＝CHIOCE{oneFrame{111111}}
Owing to have 3 over-allocation subframes, suppose that the over-allocation subframe of selection is:
The 2nd subframe in the 1st radio frames;
The 2nd subframe in the 5th radio frames;
The 2nd subframe in the 29th radio frames.
Can be following form then according to mode two, the second revision directives:
0010000000010011100
Receiving terminal selects 4 bit to determine that the sequence number of over-allocation subframe in radio frames is 2 earlier, get 5 bit then and determine that the sequence number of the radio frames at first over-allocation subframe place is 1, get 5 bit again and determine that the sequence number of the radio frames at second over-allocation subframe place is 5,5 last bit determine that the sequence number of the radio frames at the 3rd over-allocation subframe place is 29, has so far determined all over-allocation subframes.
Certainly, also can be following putting in order:
0000000100111000010。
＜implementation three 〉
In the implementation two, may need 39bits to indicate the positional information of over-allocation subframe at most,, now propose the third implementation of correcting module in order further to reduce the length of revision directive.
In implementation three, correcting module specifically comprises:
The 3rd selected cell, the subframe of selecting the 3rd number from described initial subframe be as the over-allocation subframe, last in the initial subframe of the radio frames that described over-allocation subframe is its place;
The 3rd instruction generation unit is used to generate the 3rd revision directive, and described the 3rd revision directive comprises the sequence number of the radio frames at each described over-allocation subframe place.
Illustrate as followsly, suppose:
Among the MSAP, subframeAllocation=CHIOCE{oneFrame{111111}}, then each over-allocation subframe all is the 9th subframe of radio frames;
Among the MSAP, subframeAllocation=CHIOCE{oneFrame{111100}}, then each over-allocation subframe all is the 7th subframe of radio frames;
Among the MSAP, subframeAllocation=CHIOCE{oneFrame{111101}}, then each over-allocation subframe all is the 9th subframe of radio frames.
All understand at communicating pair under the situation of implication of revision directive, owing to all be to specify last can be used to transmit the subframe of MBMS data as the over-allocation subframe, so the sequence number of this over-allocation subframe need not to notify the opposite end, therefore, with respect to implementation two, reduce 4bits, may need 35bits to indicate the positional information of over-allocation subframe at most.
Certainly, also can be select radio frames be used for transmit first of subframe of MBMS data as the over-allocation subframe.
Illustrate as follows:
The number of supposing the subframe of current business actual needs is 45, supposes that definite MSAP is as follows:
radioframeAllocationPeriod＝n4
radioframeAllocationOffset＝0，
subframeAllocation＝CHIOCE{oneFrame{111111}}
Owing to there are 3 over-allocation subframes, because being used for transmission, the 2nd, 3,4,7,8,9 in the radio frames transmit the MBMS data, so according to implementation three, the over-allocation subframe of selection is:
The 9th subframe of the 1st radio frames;
The 9th subframe of the 5th radio frames;
The 9th subframe of the 29th radio frames;
Then as follows according to mode three, the three revision directives:
000000010011100
Receiving terminal is got 5 bit and is determined that the sequence number of the radio frames at first over-allocation subframe place is 1, get 5 bit again and determine that the sequence number of the radio frames at second over-allocation subframe place is 5,5 last bit determine that the sequence number of the radio frames at the 3rd over-allocation subframe place is 29, after determining radio frames, determine that last subframe in these radio frames is the over-allocation subframe.
＜implementation four 〉
In order further to reduce the length of revision directive, in implementation four, correcting module specifically comprises:
The 4th selected cell, the over-allocation subframe of selection the 3rd number from described initial subframe, in described initial subframe, described over-allocation subframe continuous distribution;
The 4th instruction generation unit is used to generate the 4th revision directive, comprises described the 3rd number in described the 4th revision directive, and sequence number and self sequence number of the radio frames at first or last described over-allocation subframe place.
Consider according to MASP promptly know preliminary determine be used to transmit the number of initial subframe of MBMS data and the position of described initial subframe, and over-allocation subframe continuous distribution, if know sequence number and self sequence number of the radio frames at first subframe or last subframe place, receiving terminal can be determined the particular location of all over-allocation subframes by simple calculations.
In implementation four, may need 3 (described the 3rd number)+5 (indicating the sequence number of the radio frames at first or last described over-allocation subframe place)+4 sequence number of (first or last described over-allocation subframe self)=12bits to indicate described over-allocation subframe position at most.
Illustrate as follows with the sequence number of the radio frames that comprises first subframe place in the over-allocation subframe and the sequence number of first subframe in the over-allocation subframe self:
The number of supposing the subframe of current business actual needs is 45, supposes that definite MSAP is as follows:
radioframeAllocationPeriod＝n4
radioframeAllocationOffset＝0，
subframeAllocation＝CHIOCE{oneFrame{111111}}
Owing to have 3 over-allocation subframes,, suppose that the over-allocation subframe of selection is according to implementation four:
The 9th subframe in the 1st radio frames;
The 2nd subframe in the 5th radio frames;
The 3rd subframe in the 5th radio frames;
Then as follows according to mode four, the four revision directives:
011000001001
It is 3 that receiving terminal is got the number that 3 bit determine the over-allocation subframe, and then determine that according to ensuing 00000 first over-allocation subframe is positioned at first radio frames, and the sequence number in radio frames is 9 (1001), determined after first over-allocation subframe, because the number of over-allocation subframe is known, and over-allocation subframe continuous distribution, then can determine all over-allocation subframes.
＜implementation five 〉
In order further to reduce the length of revision directive, in implementation five, correcting module specifically comprises:
The 5th selected cell, from described initial subframe, select the subframe of the 3rd number as the over-allocation subframe, the radio frames that is distributed with the over-allocation subframe is the radio frames (in last the 4th a number radio frames of over-allocation subframe distribution in the radio frames of described MSAP instruction indication) of the 4th last number of the radio frames that is used for the MBMS transmission data of MSAP indication, the subframe of the 5th number that the subframe that is used for the MBMS transmission data of described first radio frames is last is over-allocation subframe (in each described the 4th number radio frames, last the 5th a number subframe that belongs to described initial subframe is the over-allocation subframe); The amassing of described the 4th number and the 5th number is the 3rd number;
The five fingers make generation unit, are used to generate the 5th revision directive, comprise described the 4th number and the 5th number in described the 5th revision directive.
In implementation five, may need 3 (indicating the 4th number)+3 (indicating the 5th number)=6bits to indicate described over-allocation subframe position at most.
The number of supposing the subframe of current business actual needs is 45, supposes that definite MSAP is as follows:
radioframeAllocationPeriod＝n4
radioframeAllocationOffset＝0，
subframeAllocation＝CHIOCE{oneFrame{111111}}
Because have 3 over-allocation subframes, according to implementation five, the over-allocation subframe of selection is::
The 9th subframe in the 21st radio frames;
The 9th subframe in the 25th radio frames;
The 9th subframe in the 29th radio frames;
Then as follows according to mode five, the five revision directives:
011001
Receiving terminal is got 011 and is determined to be distributed with the over-allocation subframe in last 3 radio frames of the radio frames that is used for the MBMS transmission data of MSAP indication, receiving terminal is got 001 and is determined that each is distributed with in the radio frames of over-allocation subframe, last of subframe that is used for the MBMS transmission data is for the over-allocation subframe, so far, can determine all over-allocation subframes.
The number of supposing the subframe of current business actual needs is 42, supposes that definite MSAP is as follows:
radioframeAllocationPeriod＝n4
radioframeAllocationOffset＝0，
subframeAllocation＝CHIOCE{oneFrame{111111}}
Because have 6 over-allocation subframes, according to implementation five, the over-allocation subframe of selection is::
The the 8th, 9 subframe in the 21st radio frames;
The the 8th, 9 subframe in the 25th radio frames;
The the 8th, 9 subframe in the 29th radio frames;
Then as follows according to mode five, the five revision directives:
011010
Receiving terminal is got 011 and is determined to be distributed with the over-allocation subframe in last 3 radio frames of the radio frames that is used for the MBMS transmission data of MSAP indication, receiving terminal is got 010 and is determined that each is distributed with in the radio frames of over-allocation subframe, be used for the MBMS transmission data subframe last 2 for the over-allocation subframe, so far, can determine all over-allocation subframes.
＜implementation six 〉
In order further to reduce the length of revision directive, in implementation six, correcting module specifically comprises:
The 6th selects module, from described initial subframe, according to from back to front or vertical order select the subframe of the 3rd number as the over-allocation subframe successively;
The 6th instruction generation unit is used to generate the 6th revision directive, comprises described the 3rd number in described the 6th revision directive.
Consider according to MASP promptly know preliminary determine be used to transmit the number of initial subframe of MBMS data and the position of described initial subframe, and the over-allocation subframe is a subframe last or that begin most, and receiving terminal can be determined the particular location of all over-allocation subframes by simple calculations.
In implementation six, fixedly need 3bits to indicate described over-allocation subframe position.
To comprise that the over-allocation subframe is that the subframe of the 3rd number that begins most in the initial subframe is described as follows for exemplifying example:
The number of supposing the subframe of current business actual needs is 45, supposes that definite MSAP is as follows:
radioframeAllocationPeriod＝n4
radioframeAllocationOffset＝0，
subframeAllocation＝CHIOCE{oneFrame{111111}}
Owing to have 3 over-allocation subframes, be appointed as:
The 2nd subframe in the 1st radio frames;
The 3rd subframe in the 1st radio frames;
The 4th subframe in the 1st radio frames.
Then as follows according to mode six, the six revision directives:
011
After receiving terminal is got 3 bit and determined the number of over-allocation subframe, determine that preceding 3 subframes in the initial subframe are the over-allocation subframe, just the 2nd, 3,4 subframe in the 1st radio frames.
The above-mentioned specific implementation that six kinds of correcting modules are provided, but should be appreciated that to also have other can indicate the mode of the position at over-allocation subframe place, do not describe one by one at this.
Simultaneously, in above-mentioned implementation one, implementation two and the mode four, revision directive all relates to the sequence number of over-allocation subframe in radio frames, in above-mentioned implementation one, implementation two and mode four, be to come indicating positions with the sequence number of over-allocation subframe in radio frames, owing in a radio frames 10 subframes are arranged, therefore need 4bits to indicate.
But consider in the radio frames, have only 6 subframes can be used for the transmission of MBMS data at most, therefore, in above-mentioned implementation one, implementation two and the mode four, also can come indicating positions in the sequence number of the subframe of the transmission that can be used for the MBMS data of radio frames with the over-allocation subframe, owing to have only 6 subframes can be used for the transmission of MBMS data at most in the radio frames, therefore, only need 3bits to indicate.
Simultaneously, six kinds of above-mentioned modes all are the explanations of carrying out with subframeAllocation=CHIOCE{oneFrame{......}}, but should be appreciated that, it is equally applicable to the situation of subframeAllocation=CHIOCE{fourFrame{......}}, other subframeAllocation that may occur after also being applicable to certainly.
In the specific embodiment of the invention, by issuing revision directive on the basis of existing technology, this revision directive is used to indicate the positional information of over-allocation subframe, receiving terminal receives after the revision directive, can determine MSAP indication be used for transmit the MBMS data initial subframe cross the indication subframe, it has the beneficial effect of following two aspects:
At first, terminal can not go to receive data again on the over-allocation subframe, and this must reduce the energy consumption of terminal;
Secondly, because terminal can not receive data from the over-allocation subframe,, can improve the utilance of resource so this over-allocation subframe can be used for the transmission of unicast service data.
Suppose 3 over-allocation subframes, bandwidth is 10MHz, and spectrum efficiency is 5bps/Hz, and the resource gain that these 3 over-allocation subframes can be brought is as follows: 10MHz*5bps/Hz*3/320=0.47Mbps.
Above-mentioned revision directive can be carried by the SIB on the BCCH, and prerequisite is that the SIB that carries revision directive also has enough undefined bytes certainly, can be used for the transmission of revision directive, and certainly, this revision directive can be transmitted by MCCH.
Then according to the example in the mode one, the following form of first revision directive:
0000000100100010111000011。Only that this 001,010 and 011 expression is the 1st, the 2nd and the 3rd of the subframe that can be used for the MBMS transfer of data of radio frames, first subframe of considering radio frames can not be used for the MBMS transfer of data, so for whole radio frames, just the 2nd, the 3rd and the 4th subframe.
The above only is a preferred implementation of the present invention; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (12)
1. resource indicating method is used for many cell transmission pattern of the MBMS of multimedia broadcast multicast system, it is characterized in that, comprising:
Service feature according to the MBMS business obtains first number, and described first number is the number of the subframe of the professional actual needs of described MBMS in the dispatching cycle;
Determine transmission channel sub-frame allocation pattern MSAP instruction according to described first number; Described MSAP instruction is used to indicate the initial subframe that is used for the MBMS transmission data of second number, and described second number is more than or equal to the minimum value of described first number in the number of subframes that can indicate of MSAP indicating means;
At described first number during less than described second number, from described initial subframe, select the over-allocation subframe of the 3rd number, and generating the revision directive of the described over-allocation subframe position of indication according to selection result, described the 3rd number is the difference of described second number and described first number;
Send described MSAP instruction and revision directive and arrive receiving terminal, indicate described receiving terminal, the subframe that finally is used for transmitting the MBMS data in dispatching cycle is the subframe of described initial subframe except that described over-allocation subframe.
2. according to the described resource indicating method of claim 1, it is characterized in that described revision directive sends to described receiving terminal by broadcast channel or MBMS point to multiple spot control channel MCCH.
3. according to the described resource indicating method of claim 2, it is characterized in that, the described over-allocation subframe of from described initial subframe, selecting the 3rd number, and specifically comprise according to the revision directive that selection result generates the described over-allocation subframe position of indication:
From described initial subframe, select the over-allocation subframe of the 3rd number arbitrarily;
Determine the position of the over-allocation subframe of selection;
Generate first revision directive, described first revision directive comprises the sequence number of the radio frames at each described over-allocation subframe place, and the sequence number of each described over-allocation subframe in radio frames.
4. according to the described resource indicating method of claim 2, it is characterized in that, the described over-allocation subframe of from described initial subframe, selecting the 3rd number, and specifically comprise according to the revision directive that selection result generates the described over-allocation subframe position of indication:
From described initial subframe, select the over-allocation subframe of the 3rd number, in the described initial subframe, described over-allocation subframe continuous distribution;
Generation comprises the 4th revision directive of described the 3rd number, first sequence number and second sequence number;
Described first sequence number is the sequence number of the radio frames at first over-allocation subframe place;
Described second sequence number is the sequence number of described first over-allocation subframe in radio frames.
5. according to the described resource indicating method of claim 2, it is characterized in that, the described over-allocation subframe of from described initial subframe, selecting the 3rd number, and specifically comprise according to the revision directive that selection result generates the described over-allocation subframe position of indication:
From described initial subframe, select the subframe of the 3rd number as the over-allocation subframe, in last the 4th a number radio frames of described over-allocation subframe distribution in the radio frames of described MSAP instruction indication, in each described the 4th number radio frames, last the 5th a number subframe that belongs to described initial subframe is the over-allocation subframe; The amassing of described the 4th number and the 5th number is the 3rd number;
Generation comprises the 5th revision directive of described the 4th number and the 5th number.
6. according to the described resource indicating method of claim 2, it is characterized in that, the described over-allocation subframe of from described initial subframe, selecting the 3rd number, and specifically comprise according to the revision directive that selection result generates the described over-allocation subframe position of indication:
From described initial subframe, according to from back to front or vertical order select the subframe of the 3rd number as the over-allocation subframe successively;
Generation comprises the 6th revision directive of described the 3rd number.
7. enhanced base station is used for many cell transmission pattern of the MBMS of multimedia broadcast multicast system, it is characterized in that, comprising:
The first number determination module is used for obtaining first number according to the service feature of MBMS business, and described first number is the number of the subframe of the professional actual needs of described MBMS in the dispatching cycle;
The first instruction generation module is used for determining transmission channel sub-frame allocation pattern MSAP instruction according to described first number; Described MSAP instruction is used to indicate the initial subframe that is used for the MBMS transmission data of second number, and described second number is greater than the minimum value of described first number in the number of subframes that can indicate of MSAP indicating means;
The second instruction generation module, be used at described first number during less than described second number, from described initial subframe, select the over-allocation subframe of the 3rd number, and generating the revision directive of the described over-allocation subframe position of indication according to selection result, described the 3rd number is the difference of described second number and described first number;
Sending module is used to send described MSAP instruction and revision directive and arrives receiving terminal, indicates described receiving terminal, and the subframe that finally is used for transmitting the MBMS data in dispatching cycle is the subframe of described initial subframe except that the subframe of described over-allocation;
Service Processing Module is used for utilizing the subframe of described initial subframe except that the subframe of described over-allocation to handle described MBMS business.
8. enhanced base station according to claim 7 is characterized in that, described revision directive sends to described receiving terminal by broadcast channel or MBMS point to multiple spot control channel MCCH.
9. described according to Claim 8 enhanced base station is characterized in that, the described second instruction generation module specifically comprises:
Be used for selecting arbitrarily the unit of the over-allocation subframe of the 3rd number from described initial subframe;
The unit that is used for the position of definite over-allocation subframe of selecting;
Be used to generate the unit of first revision directive, described first revision directive comprises the sequence number of the radio frames at each described over-allocation subframe place, and the sequence number of each described over-allocation subframe in radio frames.
10. described according to Claim 8 enhanced base station is characterized in that, the described second instruction generation module specifically comprises:
Be used for selecting the unit of the over-allocation subframe of the 3rd number from described initial subframe, in the described initial subframe, described over-allocation subframe continuous distribution;
Be used to generate the unit of the 4th revision directive that comprises described the 3rd number, first sequence number and second sequence number;
Described first sequence number is the sequence number of the radio frames at first over-allocation subframe place;
Described second sequence number is the sequence number of described first over-allocation subframe in radio frames.
11. described according to Claim 8 enhanced base station is characterized in that, the described second instruction generation module specifically comprises:
Be used for selecting the unit of the subframe of the 3rd number as the over-allocation subframe from described initial subframe, in last the 4th a number radio frames of described over-allocation subframe distribution in the radio frames of described MSAP instruction indication, in each described the 4th number radio frames, last the 5th a number subframe that belongs to described initial subframe is the over-allocation subframe; The amassing of described the 4th number and the 5th number is the 3rd number;
Be used to generate the unit of the 5th revision directive that comprises described the 4th number and the 5th number.
12. described according to Claim 8 enhanced base station is characterized in that, the described second instruction generation module specifically comprises:
Be used for from described initial subframe, according to from back to front or vertical order select the unit of the subframe of the 3rd number successively as the over-allocation subframe;
Be used to generate the unit of the 6th revision directive that comprises described the 3rd number.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| KR20130026668A (en) | 2011-09-06 | 2013-03-14 | 삼성전자주식회사 | Central control apparatus and method for operating based on the energy efficiency of base stations in mobile communication system |
| EP3247145B1 (en) | 2015-02-05 | 2019-05-08 | Huawei Technologies Co., Ltd. | Method and device for indicating need of blind detection in subframes |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101426282A (en) * | 2007-10-29 | 2009-05-06 | 中国移动通信集团公司 | Method and apparatus for downlink bearing data |
| CN101483810A (en) * | 2008-01-07 | 2009-07-15 | 上海贝尔阿尔卡特股份有限公司 | Multimedia service data sending and receiving method, base station apparatus and user equipment |
-
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-
2010
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101426282A (en) * | 2007-10-29 | 2009-05-06 | 中国移动通信集团公司 | Method and apparatus for downlink bearing data |
| CN101483810A (en) * | 2008-01-07 | 2009-07-15 | 上海贝尔阿尔卡特股份有限公司 | Multimedia service data sending and receiving method, base station apparatus and user equipment |
Non-Patent Citations (2)
| Title |
|---|
| ALCATEL-LUCENT SHANGHAI BELL等: "Service multiplexing and signalling for eMBMS", 《3GPP TSG-RAN WG3 #64》 * |
| HUAWEI: "MSAP and MBSFN Subframe Allocation Signaling", 《3GPP TSG-RAN-WG2 MEETING #61》 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018090302A1 (en) * | 2016-11-17 | 2018-05-24 | Telefonaktiebolaget Lm Ericsson (Publ) | Methods and apparatuses for subframe scheduling |
| US10397948B2 (en) | 2016-11-17 | 2019-08-27 | Telefonaktiebolaget Lm Ericsson (Publ) | Methods and apparatuses for subframe scheduling |
| CN110506446A (en) * | 2016-11-17 | 2019-11-26 | 瑞典爱立信有限公司 | Method and apparatus for subframe scheduling |
| CN110506446B (en) * | 2016-11-17 | 2023-02-21 | 瑞典爱立信有限公司 | Method and apparatus for subframe scheduling |
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| JP5490641B2 (en) | 2014-05-14 |
| CN101959135B (en) | 2014-08-06 |
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