CN106162561A - A kind of broadband method of adjustment and device - Google Patents
A kind of broadband method of adjustment and device Download PDFInfo
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Abstract
The invention discloses a kind of bandwidth adjusting method and device, in order to the problem solving present in prior art to provide, for eMBMS, the bandwidth mated most.The method includes: in each scheduling process of enhanced multimedia broadcast multicast service eMBMS community, obtain the channel condition information of each non-eMBMS terminal in eMBMS community, and according to the channel condition information of each non-eMBMS terminal obtained, determine modulation and the coding strategy MCS intermediate value of eMBMS in corresponding scheduling process；According to the MCS intermediate value determined in I scheduling process, determine the MCS final value of eMBMS in described eMBMS community；Wherein, I is the scheduling times threshold value pre-set；It it is the bandwidth matched with the MCS final value determined by the Bandwidth adjustment of eMBMS in described eMBMS community.
Description
Technical field
The present invention relates to wireless communication technology field, particularly relate to a kind of broadband method of adjustment and device.
Background technology
Enhanced multimedia broadcast multicast service (evolved Multimedia Broadcast Multicast
Service, eMBMS) technology is based on third generation partner program (3rd Generation Partnership
Project, 3GPP) enhancement mode broadcast multi-broadcasting technology that R9 agreement specifies is that mobile field regards the most efficiently
Frequently one of bearing technology.With previous generation multimedia broadcast multi-broadcasting business (Multimedia Broadcast
Multicast Service, MBMS) video bearer technology compares, and eMBMS technology can support bigger band
Wide, it means that to be provided that more channel and video content, the simultaneously apparent smoothness of video pictures, user
Experience more preferably.
EMBMS is also referred to as Long Term Evolution (Long Term Evolution, LTE) broadcast, is a kind of first
The mobile data transfer technology entered, can make operator significantly reduce the most same time to multiple
User provides the cost of the such as high-bandwidth content such as video, audio frequency.
As the solution of a kind of technique for video broadcasting, according to the regulation of 3GPP agreement, eMBMS lacks
Few up feedback signaling, therefore during actual deployment, needs to preset eMBMS in each community
Bandwidth, in existing scheme, be determined by sub-frame number and modulation with coding strategy (Modulation and
Coding Scheme, MCS) etc. factor, determine the bandwidth of eMBMS in each community.
But, owing to eMBMS lacks up feedback signaling, network side cannot be understood residing for each user
Wireless environment situation, so the system bandwidth design mated most cannot be given, and in order to ensure
In eMBMS business procedure, the packet of broadcast can correctly send to the receiving terminal of user side, network side one
As realized by the MCS that equipment is relatively low, thus cause the bandwidth of eMBMS relatively low, cause certain
Frequency spectrum resource is wasted.
Summary of the invention
The embodiment of the present invention provides a kind of bandwidth adjusting method and device, in order to solve present in prior art
The problem that cannot provide, for eMBMS, the bandwidth mated most.
The embodiment of the present invention is by the following technical solutions:
A kind of bandwidth adjusting method, including:
In each scheduling process of enhanced multimedia broadcast multicast service eMBMS community, obtain
The channel condition information of each non-eMBMS terminal in eMBMS community, and each non-according to obtain
The channel condition information of eMBMS terminal, determines the modulation of eMBMS and coding plan in corresponding scheduling process
Slightly MCS intermediate value；
According to the MCS intermediate value determined in I scheduling process, determine eMBMS in described eMBMS community
MCS final value；Wherein, I is the scheduling times threshold value pre-set；
It is to match with the MCS final value determined by the Bandwidth adjustment of eMBMS in described eMBMS community
Bandwidth.
Wherein, according to the channel condition information of each non-eMBMS terminal obtained, determine that correspondence was dispatched
The MCS intermediate value of eMBMS in journey, specifically includes:
According to the channel condition information of each non-eMBMS terminal obtained, and the network pre-set is adjusted
Degree mechanism, determines the MCS value of each non-eMBMS terminal in corresponding scheduling process；
According to the MCS value of each non-eMBMS terminal determined, determine in corresponding scheduling process non-
The MCS value of eMBMS；
The MCS value comparing the non-eMBMS determined and the MCS initial value of the eMBMS pre-set,
Higher value in the MCS value of the non-eMBMS determined and the MCS initial value of described eMBMS is determined
For the MCS intermediate value of eMBMS in corresponding scheduling process.
Wherein, according to the MCS intermediate value determined in I scheduling process, determine described eMBMS community
The MCS final value of middle eMBMS, specifically includes:
When I is more than 1, the meansigma methods of the MCS intermediate value determined in I scheduling process is defined as described
The MCS final value of eMBMS in eMBMS community.
Wherein, by the Bandwidth adjustment of eMBMS in described eMBMS community it is and the MCS final value determined
After the bandwidth matched, described method also includes following cyclic process:
In subprocess 1, each scheduling process after I time nearest scheduling process, it is judged that nearest I
Each scheduling process that is after secondary scheduling process and that comprise this scheduling process determines
Whether the MCS intermediate value of eMBMS is more than the standard deviation pre-set with the standard deviation of described MCS final value
Deviation value, till judging that described standard deviation is more than described standard deviation deviation value；
Subprocess 2, when judge described standard deviation more than described standard deviation deviation value time, according to adjusting next time
Spend the MCS intermediate value determined in I the scheduling process that journey starts, redefine described eMBMS little
The MCS final value of eMBMS in district, and by the Bandwidth adjustment of eMBMS in described eMBMS community be
The bandwidth matched with the MCS final value redefined, and return the described subprocess 1 of execution.
Wherein, when judging described standard deviation more than described standard deviation deviation value, described method also includes:
The MCS initial value of the eMBMS pre-set is updated to the MCS final value determined.
A kind of Bandwidth adjustment device, including:
MCS intermediate value determines module, in enhanced multimedia broadcast multicast service eMBMS community
Every time in scheduling process, obtain the channel condition information of each non-eMBMS terminal in eMBMS community,
And according to the channel condition information of each non-eMBMS terminal obtained, determine in corresponding scheduling process
The modulation of eMBMS and coding strategy MCS intermediate value；
MCS final value determines module, for determining I scheduling process in module according to described MCS intermediate value
The middle MCS intermediate value determined, determines the MCS final value of eMBMS in described eMBMS community；Wherein,
I is the scheduling times threshold value pre-set；
Bandwidth adjustment module, being used for the Bandwidth adjustment of eMBMS in described eMBMS community is with described
MCS final value determines the bandwidth that the MCS final value that module determines matches.
Wherein, described MCS intermediate value determines that module specifically includes:
The MCS value of non-eMBMS terminal determines unit, for according to each non-eMBMS obtained eventually
The channel condition information of end, and the network scheduling mechanism pre-set, determine in corresponding scheduling process each
The MCS value of non-eMBMS terminal；
The MCS value of non-eMBMS determines unit, for the MCS value according to described non-eMBMS terminal
Determine the MCS value of each non-eMBMS terminal that unit determines, determine in corresponding scheduling process non-
The MCS value of eMBMS；
MCS intermediate value determines unit, and the MCS value for relatively described non-eMBMS determines that unit determines
The MCS value of non-eMBMS and the MCS initial value of eMBMS that pre-sets, non-by determine
Higher value in the MCS value of eMBMS and the MCS initial value of described eMBMS is defined as corresponding scheduling
During the MCS intermediate value of eMBMS.
Wherein, described MCS final value determines module, specifically for:
When I is more than 1, the meansigma methods of the MCS intermediate value determined in I scheduling process is defined as described
The MCS final value of eMBMS in eMBMS community.
Wherein, described device also includes:
Readjust module, be used for circulating the following subprocess 1 of execution and subprocess 2:
In subprocess 1, each scheduling process after I time nearest scheduling process, it is judged that nearest I
Each scheduling process that is after secondary scheduling process and that comprise this scheduling process determines
Whether the MCS intermediate value of eMBMS is more than the standard deviation pre-set with the standard deviation of described MCS final value
Deviation value, till judging that described standard deviation is more than described standard deviation deviation value；
Subprocess 2, when judge described standard deviation more than described standard deviation deviation value time, according to adjusting next time
Spend the MCS intermediate value determined in I the scheduling process that journey starts, redefine described eMBMS little
The MCS final value of eMBMS in district, and by the Bandwidth adjustment of eMBMS in described eMBMS community be
The bandwidth matched with the MCS final value redefined, and return the described subprocess 1 of execution.
Wherein, readjust module described in be additionally operable to:
When judging described standard deviation more than described standard deviation deviation value, by the eMBMS's that pre-sets
MCS initial value is updated to the MCS final value determined.
Having the beneficial effect that of the embodiment of the present invention:
In the embodiment of the present invention, by each scheduling process of eMBMS community, obtain eMBMS
The channel condition information of each non-eMBMS terminal in community, and according to each non-eMBMS obtained eventually
The channel condition information of end, determines the MCS intermediate value of eMBMS in corresponding scheduling process, further according to I
The MCS intermediate value determined in secondary scheduling process, determines the MCS final value of eMBMS, and then will
In eMBMS community, the Bandwidth adjustment of eMBMS is the bandwidth matched with the MCS final value determined, makes
The eMBMS availability of frequency spectrum is greatly promoted, and the most also improves the performance of eMBMS.
Other features and advantages of the present invention will illustrate in the following description, and, partly from explanation
Book becomes apparent, or understands by implementing the present invention.The purpose of the present invention and other advantages can
Realize by structure specifically noted in the description write, claims and accompanying drawing and obtain
?.
Accompanying drawing explanation
Accompanying drawing described herein is used for providing a further understanding of the present invention, constitutes of the present invention
Point, the schematic description and description of the present invention is used for explaining the present invention, is not intended that to the present invention not
Work as restriction.In the accompanying drawings:
The flowchart of a kind of bandwidth adjusting method that Fig. 1 provides for the embodiment of the present invention；
The flowchart of a kind of bandwidth adjusting method that Fig. 2 provides for the embodiment of the present invention；
Fig. 3 adjusts the Organization Chart of system for a kind of eMBMS bandwidth self-adaption that the embodiment of the present invention provides；
The flowchart of a kind of bandwidth adjusting method that Fig. 4 provides for the embodiment of the present invention；
The structural representation of a kind of Bandwidth adjustment device that Fig. 5 provides for the embodiment of the present invention.
Detailed description of the invention
In order to solve present in prior art to provide the problem of the bandwidth mated most for eMBMS, this
Inventive embodiments provides a kind of Bandwidth adjustment scheme.In this technical scheme, by eMBMS community
Every time in scheduling process, obtain the channel condition information of each non-eMBMS terminal in eMBMS community,
And according to the channel condition information of each non-eMBMS terminal obtained, determine in corresponding scheduling process
The MCS intermediate value of eMBMS, further according to the MCS intermediate value determined in I scheduling process, determines
Go out the MCS final value of eMBMS, so by the Bandwidth adjustment of eMBMS in eMBMS community be with really
The bandwidth that fixed MCS final value matches, makes the eMBMS availability of frequency spectrum be greatly promoted, the most also promotes
The performance of eMBMS.
Below in conjunction with Figure of description, embodiments of the invention are illustrated, it will be appreciated that described herein
Embodiment be merely to illustrate and explain the present invention, be not limited to the present invention.And in the feelings do not conflicted
Under condition, embodiment and the feature of embodiment in the present invention can be combined with each other.
Embodiments provide a kind of bandwidth adjusting method, as it is shown in figure 1, be the realization stream of the method
Cheng Tu, specifically includes following step:
Step 11, in each scheduling process of eMBMS community, obtains in eMBMS community each non-
The channel condition information of eMBMS terminal, and according to the channel status of each non-eMBMS terminal obtained
Information, determines the MCS intermediate value of eMBMS in corresponding scheduling process.
Wherein, eMBMS community refers to the community of eMBMS, rather than eMBMS terminal refers to place
In eMBMS community, but not yet use the terminal of eMBMS.
Concrete, step 11 can realize as follows:
First, according to the channel condition information of each non-eMBMS terminal obtained, and pre-set
Network scheduling mechanism, determines the MCS value of each non-eMBMS terminal in corresponding scheduling process；
Secondly, according to the MCS value of each non-eMBMS terminal determined, determine in corresponding scheduling process
The MCS value of non-eMBMS；
Finally, at the beginning of the MCS value comparing the non-eMBMS determined and the MCS of eMBMS pre-set
Initial value, by the MCS value of the non-eMBMS determined and the MCS initial value of eMBMS that pre-sets
Higher value be defined as the MCS intermediate value of eMBMS in corresponding scheduling process.
Step 12, according to the MCS intermediate value determined in I scheduling process, determines this eMBMS community
The MCS final value of middle eMBMS, wherein, I is the scheduling times threshold value pre-set.
According to the MCS intermediate value determined in I scheduling process, say, that step 11 performs I time and adjusts
Spend journey, after obtaining I MCS intermediate value, then perform step 12.
In the embodiment of the present invention, when I is 1, i.e. just determine this eMBMS by single scheduling process
The MCS final value of eMBMS in community.But owing to the wireless environment in this eMBMS community may
There is change, the MCS final value therefore determined by single scheduling process may compared with practical situation
There is larger difference, accuracy is the highest.
When I is more than 1, the MCS intermediate value that I scheduling process is determined can be added up, estimation
Go out MCS final value, such as the meansigma methods of the MCS intermediate value determined in I scheduling process is defined as
The MCS final value of eMBMS in eMBMS community, the MCS final value that this method is determined can comparison operators
Closing practical situation, accuracy is of a relatively high.
Step 13, by the Bandwidth adjustment of eMBMS in this eMBMS community be and the MCS final value determined
The bandwidth matched.
In the embodiment of the present invention, by each scheduling process of eMBMS community, obtain eMBMS
The channel condition information of each non-eMBMS terminal in community, and according to each non-eMBMS obtained eventually
The channel condition information of end, determines the MCS intermediate value of eMBMS in corresponding scheduling process, further according to I
The MCS intermediate value determined in secondary scheduling process, determines the MCS final value of eMBMS, and then will
In eMBMS community, the Bandwidth adjustment of eMBMS is the bandwidth matched with the MCS final value determined, makes
The eMBMS availability of frequency spectrum is greatly promoted, and the most also improves the performance of eMBMS.
Further, in order to enable the MCS final value of the eMBMS determined preferably to adapt to net
Network changes, after the MCS intermediate value determined according to I scheduling process estimates MCS final value,
The MCS final value that inventive embodiments can also continue to estimating carries out accommodation, with avoid follow-up by
Changing in wireless environment causes the MCS final value estimated bigger with practical situation deviation.
As in figure 2 it is shown, the flowchart of the another kind of bandwidth adjusting method provided for the embodiment of the present invention,
Specifically include following step:
Step 21, in each scheduling process of eMBMS community, obtains in eMBMS community each non-
The channel condition information of eMBMS terminal, and according to the channel status of each non-eMBMS terminal obtained
Information, determines the MCS intermediate value of eMBMS in corresponding scheduling process.
Step 22, according to the MCS intermediate value determined in I scheduling process, determines this eMBMS community
The MCS final value of middle eMBMS, wherein, I is the scheduling times threshold value pre-set.
Step 23, by the Bandwidth adjustment of eMBMS in this eMBMS community be and the MCS final value determined
The bandwidth matched.
Step 21-23 is similar to above-mentioned steps 11-13, does not repeats them here.
Step 24, in each scheduling process after I time nearest scheduling process, it is judged that nearest I time
The eMBMS determined in each scheduling process that is after scheduling process and that comprise this scheduling process
The standard deviation of MCS intermediate value and the MCS final value determined whether more than the standard deviation deviation pre-set
Value, till judging that this standard deviation is more than standard deviation deviation value.
Step 25, when judging this standard deviation more than standard deviation deviation value, opens according to scheduling process next time
The MCS intermediate value determined in I the scheduling process begun, redefines eMBMS in eMBMS community
MCS final value, and by the Bandwidth adjustment of eMBMS in eMBMS community be and the MCS that redefines
The bandwidth that final value matches, and return execution step 24.
Wherein step 24 and step 25 are cyclic processes, above-mentioned when judge in step 24 to determine
During the standard deviation deviation value that standard deviation no more than pre-sets, it is returned to continue executing with step 24, and when judging
When going out the above-mentioned standard deviation determined more than the standard deviation deviation value pre-set, just perform step 25, work as step
Rapid 25 are finished returns again to perform step 24 afterwards.
In order to be better understood from the embodiment of the present invention, implement the tool to the embodiment of the present invention below in conjunction with concrete
Body implementation process illustrates.
As it is shown on figure 3, a kind of eMBMS bandwidth self-adaption for embodiment of the present invention offer adjusts system
Organization Chart, specifically includes:
Measurement module, feedback module and adjusting module, wherein:
(1) measurement module, for network side according to the uplink feedback of the common user in eMBMS community,
The channel quality of the local environment current to each user measures.
Wherein, common user i.e. refers to use the user of non-eMBMS terminal.
(2) feedback module, for the channel quality according to common user, determines eMBMS according to setting scheme
The bandwidth parameter of user, such as MCS etc., and feedback adjustment module.
Wherein, eMBMS user i.e. refers to use the user of eMBMS terminal.
(3) adjusting module, for the bandwidth parameter according to feedback module, distributing policy, adjusts eMBMS
Bandwidth.
Basic thought based on the eMBMS bandwidth self-adaption adjustment system that above-mentioned Fig. 3 is provided, the present invention
Embodiment implements flow process to bandwidth adjusting method and is introduced, as shown in Figure 4, specifically include as
Lower step:
Step 41, the MCS initial value of the eMBMS arranging eMBMS community is MCS0。
Step 42, in this scheduling process, obtains each non-eMBMS terminal in eMBMS community
Channel condition information, it is assumed that for f (Q).
Step 43, according to the channel condition information f (Q) of each non-eMBMS terminal obtained, and in advance
Network scheduling mechanism f (D) arranged, determines the MCS of each non-eMBMS terminal in this scheduling process
Value, the most following formula (1):
fn(MCS)=fn(Q)fn(D) (1)
Wherein, n quantity of non-eMBMS terminal in being eMBMS community.
Step 44, in the MCS value determined, chooses M MCS of minimum from this scheduling process
Value, and determine the MCS value of non-eMBMS in this scheduling process according to formula (2):
MCSNon-=max{f1(MCS) ..., fM(MCS)} (2)
Wherein, MCSNon-MCS value for eMBMS non-in this scheduling process；
f1(MCS) is to fM(MCS) it is M MCS value minimum in this scheduling process.
Step 45, determines the MCS intermediate value of eMBMS in this scheduling process according to equation below (3):
MCSeMBMS=max{MCS0, MCSNon-} (3)
Wherein, MCSeMBMSFor the MCS intermediate value of eMBMS in this scheduling process.
Step 46, writes storage array by the MCS intermediate value of the eMBMS of this scheduling process
{MCSEMBMS, i, wherein i is current scheduling number of times.
Step 47, it is judged that whether i is less than I, and wherein I is the scheduling times threshold value pre-set.
When judging i ＜ I, return and continue executing with step 42, i.e. carry out scheduling process next time, i=i+1；
When judging i ≮ I, perform step 48.
Step 48, it is judged that whether i is equal to I, when judging i=I, performs step 49, and when judging
During i ≠ I, perform step 410.
Step 49, after the long-time statistical of I scheduling process, determines eMBMS according to equation below (4)
MCS final value, and after the MCS final value determining eMBMS, return and continue executing with step 42,
I.e. carry out scheduling process next time, i=i+1.
Wherein, MCSeThe MCS final value of the eMBMS for determining.
It should be noted that at MCSeBefore determining, eMBMS continues to use the MCS value set last time, if first
Secondary startup, then use MCS0。
Step 410, it is judged that after I time nearest scheduling process and comprise this scheduling process
The MCS intermediate value of the eMBMS every time determined in scheduling process and the MCS determinedeStandard deviation the most not
More than the standard deviation deviation value that pre-sets, the most whether meet formula (5):
Wherein, scheduling that is after M is I time nearest scheduling process and that comprise this scheduling process
Number of times, S is the standard deviation deviation value pre-set.
When judging to meet formula (5), say, that the MCS determinedeDiffer with current wireless environment
Not quite, so the MCS determinedeKeep constant, return and continue executing with step 42, i=i+1.
When judging to be unsatisfactory for formula (5), say, that the MCS determinedeDeposit with current wireless environment
In bigger difference, so needing to redefine MCSe.Therefore, return and continue executing with step 42, and will scheduling
Number of times resets, and i=1, simultaneously by MCS0It is updated to MCSe, redefining out MCSeBefore, MCS is eventually
Value also needs to be continuing with MCSe, and pass through MCS latereCompare with the MCS value of non-eMBMS
Relatively determine the MCS intermediate value of eMBMS.
In the embodiment of the present invention, by each scheduling process of eMBMS community, obtain eMBMS
The channel condition information of each non-eMBMS terminal in community, and according to each non-eMBMS obtained eventually
The channel condition information of end, determines the MCS intermediate value of eMBMS in corresponding scheduling process, further according to I
The MCS intermediate value determined in secondary scheduling process, determines the MCS final value of eMBMS, and then will
In eMBMS community, the Bandwidth adjustment of eMBMS is the bandwidth matched with the MCS final value determined, makes
The eMBMS availability of frequency spectrum is greatly promoted, and the most also improves the performance of eMBMS.
Further, in order to enable the MCS final value of the eMBMS determined preferably to adapt to net
Network changes, after the MCS intermediate value determined according to I scheduling process estimates MCS final value,
The MCS final value that inventive embodiments can also continue to estimating carries out accommodation, with avoid follow-up by
Changing in wireless environment causes the MCS final value estimated bigger with practical situation deviation.
Based on same inventive concept, the embodiment of the present invention also each provides a kind of Bandwidth adjustment device, by
The principle solving problem in said apparatus is similar to bandwidth adjusting method, and therefore the enforcement of said apparatus can be joined
The enforcement of square method, repeats no more in place of repetition.
As it is shown in figure 5, the structural representation of the Bandwidth adjustment device provided for the embodiment of the present invention, including:
MCS intermediate value determines module 51, for little at enhanced multimedia broadcast multicast service eMBMS
In each scheduling process in district, obtain the channel status letter of each non-eMBMS terminal in eMBMS community
Breath, and according to the channel condition information of each non-eMBMS terminal obtained, determine in corresponding scheduling process
The modulation of eMBMS and coding strategy MCS intermediate value；
MCS final value determines module 52, adjusts for I time for determining in module 51 according to described MCS intermediate value
The MCS intermediate value determined during degree, determines the MCS final value of eMBMS in described eMBMS community；
Wherein, I is the scheduling times threshold value pre-set；
Bandwidth adjustment module 53, for by the Bandwidth adjustment of eMBMS in described eMBMS community for institute
State the bandwidth that MCS final value determines that the MCS final value that module 52 determines matches.
Wherein, described MCS intermediate value determines that module 51 specifically includes:
The MCS value of non-eMBMS terminal determines unit 511, for according to each non-eMBMS obtained
The channel condition information of terminal, and the network scheduling mechanism pre-set, determine in corresponding scheduling process every
The MCS value of individual non-eMBMS terminal；
The MCS value of non-eMBMS determines unit 512, for the MCS according to described non-eMBMS terminal
Value determines the MCS value of each non-eMBMS terminal that unit 511 determines, determines in corresponding scheduling process
The MCS value of non-eMBMS；
MCS intermediate value determines unit 513, and the MCS value for relatively described non-eMBMS determines unit
The MCS value of the 512 non-eMBMS determined and the MCS initial value of the eMBMS pre-set, incite somebody to action really
It is right that higher value in the MCS value of fixed non-eMBMS and the MCS initial value of described eMBMS is defined as
Answer the MCS intermediate value of eMBMS in scheduling process.
Wherein, described MCS final value determines module 52, specifically for:
When I is more than 1, the meansigma methods of the MCS intermediate value determined in I scheduling process is defined as described
The MCS final value of eMBMS in eMBMS community.
Wherein, described device also includes:
Readjust module 54, be used for circulating the following subprocess 1 of execution and subprocess 2:
In subprocess 1, each scheduling process after I time nearest scheduling process, it is judged that nearest I
Each scheduling process that is after secondary scheduling process and that comprise this scheduling process determines
Whether the MCS intermediate value of eMBMS is more than the standard deviation pre-set with the standard deviation of described MCS final value
Deviation value, till judging that described standard deviation is more than described standard deviation deviation value；
Subprocess 2, when judge described standard deviation more than described standard deviation deviation value time, according to adjusting next time
Spend the MCS intermediate value determined in I the scheduling process that journey starts, redefine described eMBMS little
The MCS final value of eMBMS in district, and by the Bandwidth adjustment of eMBMS in described eMBMS community be
The bandwidth matched with the MCS final value redefined, and return the described subprocess 1 of execution.
Wherein, readjust module 54 described in be additionally operable to:
When judging described standard deviation more than described standard deviation deviation value, by the eMBMS's that pre-sets
MCS initial value is updated to the MCS final value determined.
For convenience of description, above each several part is divided by function and is respectively described for each module (or unit).
Certainly, when implementing the present invention can the function of each module (or unit) at same or multiple softwares or
Hardware realizes.
When being embodied as, above-mentioned Bandwidth adjustment device can be arranged in network side (such as base station).
Those skilled in the art are it should be appreciated that embodiments of the invention can be provided as method, system or meter
Calculation machine program product.Therefore, the present invention can use complete hardware embodiment, complete software implementation or knot
The form of the embodiment in terms of conjunction software and hardware.And, the present invention can use and wherein wrap one or more
Computer-usable storage medium containing computer usable program code (include but not limited to disk memory,
CD-ROM, optical memory etc.) form of the upper computer program implemented.
The present invention is with reference to method, equipment (system) and computer program product according to embodiments of the present invention
The flow chart of product and/or block diagram describe.It should be understood that can by computer program instructions flowchart and
/ or block diagram in each flow process and/or flow process in square frame and flow chart and/or block diagram and/
Or the combination of square frame.These computer program instructions can be provided to general purpose computer, special-purpose computer, embedding
The processor of formula datatron or other programmable data processing device is to produce a machine so that by calculating
The instruction that the processor of machine or other programmable data processing device performs produces for realizing at flow chart one
The device of the function specified in individual flow process or multiple flow process and/or one square frame of block diagram or multiple square frame.
These computer program instructions may be alternatively stored in and computer or the process of other programmable datas can be guided to set
In the standby computer-readable memory worked in a specific way so that be stored in this computer-readable memory
Instruction produce and include the manufacture of command device, this command device realizes in one flow process or multiple of flow chart
The function specified in flow process and/or one square frame of block diagram or multiple square frame.
These computer program instructions also can be loaded in computer or other programmable data processing device, makes
Sequence of operations step must be performed to produce computer implemented place on computer or other programmable devices
Reason, thus the instruction performed on computer or other programmable devices provides for realizing flow chart one
The step of the function specified in flow process or multiple flow process and/or one square frame of block diagram or multiple square frame.
Although preferred embodiments of the present invention have been described, but those skilled in the art once know base
This creativeness concept, then can make other change and amendment to these embodiments.So, appended right is wanted
Ask and be intended to be construed to include preferred embodiment and fall into all changes and the amendment of the scope of the invention.
Obviously, those skilled in the art can carry out various change and modification without deviating from this to the present invention
Bright spirit and scope.So, if the present invention these amendment and modification belong to the claims in the present invention and
Within the scope of its equivalent technologies, then the present invention is also intended to comprise these change and modification.
Claims (10)
1. a bandwidth adjusting method, it is characterised in that including:
In each scheduling process of enhanced multimedia broadcast multicast service eMBMS community, obtain
The channel condition information of each non-eMBMS terminal in eMBMS community, and each non-according to obtain
The channel condition information of eMBMS terminal, determines the modulation of eMBMS and coding plan in corresponding scheduling process
Slightly MCS intermediate value；
According to the MCS intermediate value determined in I scheduling process, determine eMBMS in described eMBMS community
MCS final value；Wherein, I is the scheduling times threshold value pre-set；
It is to match with the MCS final value determined by the Bandwidth adjustment of eMBMS in described eMBMS community
Bandwidth.
2. the method for claim 1, it is characterised in that according to each non-eMBMS obtained
The channel condition information of terminal, determines the MCS intermediate value of eMBMS in corresponding scheduling process, specifically wraps
Include:
According to the channel condition information of each non-eMBMS terminal obtained, and the network pre-set is adjusted
Degree mechanism, determines the MCS value of each non-eMBMS terminal in corresponding scheduling process；
According to the MCS value of each non-eMBMS terminal determined, determine in corresponding scheduling process non-
The MCS value of eMBMS；
The MCS value comparing the non-eMBMS determined and the MCS initial value of the eMBMS pre-set,
Higher value in the MCS value of the non-eMBMS determined and the MCS initial value of described eMBMS is determined
For the MCS intermediate value of eMBMS in corresponding scheduling process.
3. the method for claim 1, it is characterised in that according to determine in I scheduling process
MCS intermediate value, determines the MCS final value of eMBMS in described eMBMS community, specifically includes:
When I is more than 1, the meansigma methods of the MCS intermediate value determined in I scheduling process is defined as described
The MCS final value of eMBMS in eMBMS community.
4. the method for claim 1, it is characterised in that by eMBMS in described eMBMS community
Bandwidth adjustment be the bandwidth matched with the MCS final value that determines after, described method also includes following as follows
Ring process:
In subprocess 1, each scheduling process after I time nearest scheduling process, it is judged that nearest I
Each scheduling process that is after secondary scheduling process and that comprise this scheduling process determines
Whether the MCS intermediate value of eMBMS is more than the standard deviation pre-set with the standard deviation of described MCS final value
Deviation value, till judging that described standard deviation is more than described standard deviation deviation value；
Subprocess 2, when judge described standard deviation more than described standard deviation deviation value time, according to adjusting next time
Spend the MCS intermediate value determined in I the scheduling process that journey starts, redefine described eMBMS little
The MCS final value of eMBMS in district, and by the Bandwidth adjustment of eMBMS in described eMBMS community be
The bandwidth matched with the MCS final value redefined, and return the described subprocess 1 of execution.
5. method as claimed in claim 4, it is characterised in that when judging that described standard deviation is more than institute
When stating standard deviation deviation value, described method also includes:
The MCS initial value of the eMBMS pre-set is updated to the MCS final value determined.
6. a Bandwidth adjustment device, it is characterised in that including:
MCS intermediate value determines module, in enhanced multimedia broadcast multicast service eMBMS community
Every time in scheduling process, obtain the channel condition information of each non-eMBMS terminal in eMBMS community,
And according to the channel condition information of each non-eMBMS terminal obtained, determine in corresponding scheduling process
The modulation of eMBMS and coding strategy MCS intermediate value；
MCS final value determines module, for determining I scheduling process in module according to described MCS intermediate value
The middle MCS intermediate value determined, determines the MCS final value of eMBMS in described eMBMS community；Wherein,
I is the scheduling times threshold value pre-set；
Bandwidth adjustment module, being used for the Bandwidth adjustment of eMBMS in described eMBMS community is with described
MCS final value determines the bandwidth that the MCS final value that module determines matches.
7. device as claimed in claim 6, it is characterised in that described MCS intermediate value determines that module has
Body includes:
The MCS value of non-eMBMS terminal determines unit, for according to each non-eMBMS obtained eventually
The channel condition information of end, and the network scheduling mechanism pre-set, determine in corresponding scheduling process each
The MCS value of non-eMBMS terminal；
The MCS value of non-eMBMS determines unit, for the MCS value according to described non-eMBMS terminal
Determine the MCS value of each non-eMBMS terminal that unit determines, determine in corresponding scheduling process non-
The MCS value of eMBMS；
MCS intermediate value determines unit, and the MCS value for relatively described non-eMBMS determines that unit determines
The MCS value of non-eMBMS and the MCS initial value of eMBMS that pre-sets, non-by determine
Higher value in the MCS value of eMBMS and the MCS initial value of described eMBMS is defined as corresponding scheduling
During the MCS intermediate value of eMBMS.
8. device as claimed in claim 6, it is characterised in that described MCS final value determines module, tool
Body is used for:
When I is more than 1, the meansigma methods of the MCS intermediate value determined in I scheduling process is defined as described
The MCS final value of eMBMS in eMBMS community.
9. device as claimed in claim 6, it is characterised in that described device also includes:
Readjust module, be used for circulating the following subprocess 1 of execution and subprocess 2:
In subprocess 1, each scheduling process after I time nearest scheduling process, it is judged that nearest I
Each scheduling process that is after secondary scheduling process and that comprise this scheduling process determines
Whether the MCS intermediate value of eMBMS is more than the standard deviation pre-set with the standard deviation of described MCS final value
Deviation value, till judging that described standard deviation is more than described standard deviation deviation value；
Subprocess 2, when judge described standard deviation more than described standard deviation deviation value time, according to adjusting next time
Spend the MCS intermediate value determined in I the scheduling process that journey starts, redefine described eMBMS little
The MCS final value of eMBMS in district, and by the Bandwidth adjustment of eMBMS in described eMBMS community be
The bandwidth matched with the MCS final value redefined, and return the described subprocess 1 of execution.
10. device as claimed in claim 9, it is characterised in that described in readjust module and be additionally operable to:
When judging described standard deviation more than described standard deviation deviation value, by the eMBMS's that pre-sets
MCS initial value is updated to the MCS final value determined.
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