CN106162561B - A kind of broadband method of adjustment and device - Google Patents

A kind of broadband method of adjustment and device Download PDF

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Publication number
CN106162561B
CN106162561B CN201510144838.2A CN201510144838A CN106162561B CN 106162561 B CN106162561 B CN 106162561B CN 201510144838 A CN201510144838 A CN 201510144838A CN 106162561 B CN106162561 B CN 106162561B
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embms
mcs
value
scheduling process
cell
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CN201510144838.2A
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Chinese (zh)
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CN106162561A (en
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李智伟
杜建凤
赵伟
李长空
张翼
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中国移动通信集团北京有限公司
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Abstract

The invention discloses a kind of bandwidth adjusting method and device, existing in the prior art most matched bandwidth can not be provided for eMBMS to solve the problems, such as.This method comprises: in each scheduling process of enhanced multimedia broadcast multicast service eMBMS cell, obtain the channel state information of each non-eMBMS terminal in eMBMS cell, and according to the channel state information of the non-eMBMS terminal of each of acquisition, the modulation and coding strategy MCS median of eMBMS in corresponding scheduling process are determined;According to the MCS median determined in I scheduling process, the MCS final value of eMBMS in the eMBMS cell is determined;Wherein, I is pre-set scheduling times threshold value;It is the bandwidth to match with determining MCS final value by the Bandwidth adjustment of eMBMS in the eMBMS cell.

Description

A kind of broadband method of adjustment and device

Technical field

The present invention relates to wireless communication technology field more particularly to a kind of broadband method of adjustment and devices.

Background technique

Enhanced multimedia broadcast multicast service (evolved Multimedia Broadcast Multicast Service, eMBMS) technology is based on third generation partner program (3rd Generation Partnership Project, 3GPP) enhanced broadcast multi-broadcasting technology as defined in R9 agreement, be the most efficient video bearer technology of mobile field it One.It is regarded with previous generation multimedia broadcast multi-broadcasting business (Multimedia Broadcast Multicast Service, MBMS) Frequency bearing technology is compared, and eMBMS technology can support bigger bandwidth, it means that more channels and video content can be provided, The apparent smoothness of video pictures, user experience are more preferable simultaneously.

EMBMS is also referred to as long term evolution (Long Term Evolution, LTE) broadcast, is a kind of advanced mobile number According to transmission technology, operator can be made to significantly reduce the same time on an LTE network and to multiple users provide such as video, audio The cost of equal high-bandwidth contents.

As a kind of solution of technique for video broadcasting, according to the regulation of 3GPP agreement, eMBMS lacks the feedback of uplink Signaling, therefore during actual deployment, needs to preset the bandwidth of eMBMS in each cell, is to pass through in existing scheme Determine sub-frame number and the factors such as modulation and coding strategy (Modulation and Coding Scheme, MCS), it is every to determine The bandwidth of eMBMS in a cell.

But since eMBMS lacks the feedback signaling of uplink, network side can not understand wireless environment locating for each user Situation, so most matched system bandwidth design scheme can not be provided, and in order to guarantee in eMBMS business procedure, the number of broadcast The receiving end of user side can be correctly sent to according to packet, network side is generally realized by the lower MCS of equipment, so as to cause The bandwidth of eMBMS is lower, and certain frequency spectrum resource is caused to waste.

Summary of the invention

The embodiment of the present invention provides a kind of bandwidth adjusting method and device, existing in the prior art can not be solving EMBMS provides the problem of most matched bandwidth.

The embodiment of the present invention uses following technical scheme:

A kind of bandwidth adjusting method, comprising:

In each scheduling process of enhanced multimedia broadcast multicast service eMBMS cell, obtain every in eMBMS cell The channel state information of a non-eMBMS terminal, and according to the channel state information of the non-eMBMS terminal of each of acquisition, determination pair Answer the modulation of eMBMS and coding strategy MCS median in scheduling process;

According to the MCS median determined in I scheduling process, the MCS final value of eMBMS in the eMBMS cell is determined;Its In, I is pre-set scheduling times threshold value;

It is the bandwidth to match with determining MCS final value by the Bandwidth adjustment of eMBMS in the eMBMS cell.

Wherein, according to the channel state information of the non-eMBMS terminal of each of acquisition, eMBMS in corresponding scheduling process is determined MCS median, specifically include:

According to the channel state information of the non-eMBMS terminal of each of acquisition and pre-set network scheduling mechanism, really Surely the MCS value of each non-eMBMS terminal in scheduling process is corresponded to;

According to the MCS value of each of determining non-eMBMS terminal, the MCS value of non-eMBMS in corresponding scheduling process is determined;

Compare the MCS value of determining non-eMBMS and the MCS initial value of pre-set eMBMS, by determining non-eMBMS MCS value and the eMBMS MCS initial value in the larger value be determined as the MCS median of eMBMS in corresponding scheduling process.

Wherein, according to the MCS median determined in I scheduling process, determine that the MCS of eMBMS in the eMBMS cell is whole Value, specifically includes:

When I is greater than 1, the average value of the MCS median determined in I scheduling process is determined as the eMBMS cell The MCS final value of middle eMBMS.

Wherein, by the Bandwidth adjustment of eMBMS in the eMBMS cell be the bandwidth that matches with determining MCS final value it Afterwards, the method also includes following cyclic processes:

Subprocess 1, in each scheduling process after I times nearest scheduling process, judge I times nearest scheduling process Later and the MCS median for including the eMBMS determined in each scheduling process including this scheduling process and the MCS Whether the standard deviation of final value is greater than pre-set standard deviation deviation value, until judging that the standard deviation is greater than the standard deviation Until deviation value;

Subprocess 2, when judge the standard deviation be greater than the standard deviation deviation value when, opened according to scheduling process next time The MCS median determined in the I scheduling process of beginning, redefines the MCS final value of eMBMS in the eMBMS cell, and by institute The Bandwidth adjustment for stating eMBMS in eMBMS cell is the bandwidth to match with the MCS final value redefined, and is returned described in execution Subprocess 1.

Wherein, when judging that the standard deviation is greater than the standard deviation deviation value, the method also includes:

The MCS initial value of pre-set eMBMS is updated to determining MCS final value.

A kind of Bandwidth adjustment device, comprising:

MCS median determining module, for dispatching every time in enhanced multimedia broadcast multicast service eMBMS cell Cheng Zhong obtains the channel state information of each non-eMBMS terminal in eMBMS cell, and according to the non-eMBMS terminal of each of acquisition Channel state information, determine the modulation and coding strategy MCS median of eMBMS in corresponding scheduling process;

MCS final value determining module, for according to the MCS determined in I scheduling process in the MCS median determining module Median determines the MCS final value of eMBMS in the eMBMS cell;Wherein, I is pre-set scheduling times threshold value;

Bandwidth adjustment module, for being to be determined with the MCS final value by the Bandwidth adjustment of eMBMS in the eMBMS cell The bandwidth that the MCS final value that module determines matches.

Wherein, the MCS median determining module specifically includes:

The MCS value determination unit of non-eMBMS terminal, for being believed according to the channel status of the non-eMBMS terminal of each of acquisition Breath and pre-set network scheduling mechanism determine the MCS value of each non-eMBMS terminal in corresponding scheduling process;

The MCS value determination unit of non-eMBMS, it is every for being determined according to the MCS value determination unit of the non-eMBMS terminal The MCS value of a non-eMBMS terminal determines the MCS value of non-eMBMS in corresponding scheduling process;

MCS median determination unit, the non-eMBMS's that the MCS value determination unit for the non-eMBMS determines The MCS initial value of MCS value and pre-set eMBMS, the MCS of the MCS value of determining non-eMBMS and the eMBMS is initial The larger value in value is determined as the MCS median of eMBMS in corresponding scheduling process.

Wherein, the MCS final value determining module, is specifically used for:

When I is greater than 1, the average value of the MCS median determined in I scheduling process is determined as the eMBMS cell The MCS final value of middle eMBMS.

Wherein, described device further include:

Module is readjusted, executes following subprocess 1 and subprocess 2 for recycling:

Subprocess 1, in each scheduling process after I times nearest scheduling process, judge I times nearest scheduling process Later and the MCS median for including the eMBMS determined in each scheduling process including this scheduling process and the MCS Whether the standard deviation of final value is greater than pre-set standard deviation deviation value, until judging that the standard deviation is greater than the standard deviation Until deviation value;

Subprocess 2, when judge the standard deviation be greater than the standard deviation deviation value when, opened according to scheduling process next time The MCS median determined in the I scheduling process of beginning, redefines the MCS final value of eMBMS in the eMBMS cell, and by institute The Bandwidth adjustment for stating eMBMS in eMBMS cell is the bandwidth to match with the MCS final value redefined, and is returned described in execution Subprocess 1.

Wherein, the readjustment module is also used to:

When judging that the standard deviation is greater than the standard deviation deviation value, by the MCS initial value of pre-set eMBMS It is updated to determining MCS final value.

The embodiment of the present invention has the beneficial effect that:

It is each non-in eMBMS cell by obtaining in each scheduling process of eMBMS cell in the embodiment of the present invention The channel state information of eMBMS terminal, and according to the channel state information of the non-eMBMS terminal of each of acquisition, determine corresponding adjust The MCS median of eMBMS determines eMBMS's further according to the MCS median determined in I scheduling process during degree MCS final value, and then be the bandwidth to match with determining MCS final value by the Bandwidth adjustment of eMBMS in eMBMS cell, make eMBMS The availability of frequency spectrum greatly promotes, while also improving the performance of eMBMS.

Other features and advantages of the present invention will be illustrated in the following description, also, partly becomes from specification It obtains it is clear that understand through the implementation of the invention.The objectives and other advantages of the invention can be by written explanation Specifically noted structure is achieved and obtained in book, claims and attached drawing.

Detailed description of the invention

The drawings described herein are used to provide a further understanding of the present invention, constitutes a part of the invention, this hair Bright illustrative embodiments and their description are used to explain the present invention, and are not constituted improper limitations of the present invention.In the accompanying drawings:

Fig. 1 is a kind of implementation flow chart of bandwidth adjusting method provided in an embodiment of the present invention;

Fig. 2 is a kind of implementation flow chart of bandwidth adjusting method provided in an embodiment of the present invention;

Fig. 3 is the architecture diagram that a kind of eMBMS bandwidth self-adaption provided in an embodiment of the present invention adjusts system;

Fig. 4 is a kind of implementation flow chart of bandwidth adjusting method provided in an embodiment of the present invention;

Fig. 5 is a kind of structural schematic diagram of Bandwidth adjustment device provided in an embodiment of the present invention.

Specific embodiment

In order to solve the problems, such as it is existing in the prior art most matched bandwidth can not be provided for eMBMS, the present invention is implemented Example provides a kind of Bandwidth adjustment scheme.In the technical solution, by obtaining in each scheduling process of eMBMS cell The channel state information of each non-eMBMS terminal in eMBMS cell, and according to the channel shape of the non-eMBMS terminal of each of acquisition State information determines the MCS median of eMBMS in corresponding scheduling process, among the MCS determined in I scheduling process Value determines the MCS final value of eMBMS, and then is and determining MCS final value phase by the Bandwidth adjustment of eMBMS in eMBMS cell The bandwidth matched greatly promotes the eMBMS availability of frequency spectrum, while also improving the performance of eMBMS.

The embodiment of the present invention is illustrated below in conjunction with Figure of description, it should be understood that implementation described herein Example is merely to illustrate and explain the present invention, and is not intended to restrict the invention.And in the absence of conflict, the reality in the present invention The feature for applying example and embodiment can be combined with each other.

The embodiment of the invention provides a kind of bandwidth adjusting methods, as shown in Figure 1, being the implementation flow chart of this method, tool Body includes the following steps:

Step 11, in each scheduling process of eMBMS cell, the letter of each non-eMBMS terminal in eMBMS cell is obtained Channel state information, and according to the channel state information of the non-eMBMS terminal of each of acquisition, determine eMBMS in corresponding scheduling process MCS median.

Wherein, eMBMS cell refers to the cell for supporting eMBMS, rather than eMBMS terminal refers in eMBMS cell, but Not yet use the terminal of eMBMS.

Specifically, step 11 can be realized as follows:

Firstly, according to the channel state information and pre-set network scheduling machine of the non-eMBMS terminal of each of acquisition System determines the MCS value of each non-eMBMS terminal in corresponding scheduling process;

Secondly, determining the MCS of non-eMBMS in corresponding scheduling process according to the MCS value of each of determining non-eMBMS terminal Value;

It, will be determining non-finally, the MCS value of more determining non-eMBMS and the MCS initial value of pre-set eMBMS The larger value in the MCS initial value of the MCS value of eMBMS and pre-set eMBMS is determined as eMBMS in corresponding scheduling process MCS median.

Step 12, according to the MCS median determined in I scheduling process, determine that the MCS of eMBMS in the eMBMS cell is whole Value, wherein I is pre-set scheduling times threshold value.

According to the MCS median determined in I scheduling process, that is to say, that step 11 executes I scheduling process, obtains I A MCS median and then execution step 12.

In the embodiment of the present invention, when I is 1, i.e., eMBMS in the eMBMS cell is just determined by single scheduling process MCS final value.But since the wireless environment in the eMBMS cell may have variation, pass through single scheduling process The MCS final value determined may have larger difference compared with actual conditions, and accuracy is not high.

When I is greater than 1, the MCS median that can be determined to I scheduling process is counted, and estimates MCS final value, For example the average value of the MCS median determined in I scheduling process is determined as to the MCS final value of eMBMS in eMBMS cell, this The MCS final value that kind method is determined can be more conform with actual conditions, and accuracy is relatively high.

It step 13, is the bandwidth to match with determining MCS final value by the Bandwidth adjustment of eMBMS in the eMBMS cell.

It is each non-in eMBMS cell by obtaining in each scheduling process of eMBMS cell in the embodiment of the present invention The channel state information of eMBMS terminal, and according to the channel state information of the non-eMBMS terminal of each of acquisition, determine corresponding adjust The MCS median of eMBMS determines eMBMS's further according to the MCS median determined in I scheduling process during degree MCS final value, and then be the bandwidth to match with determining MCS final value by the Bandwidth adjustment of eMBMS in eMBMS cell, make eMBMS The availability of frequency spectrum greatly promotes, while also improving the performance of eMBMS.

Further, in order to enable the MCS final value of the eMBMS determined preferably to adapt to network change, in root After the MCS median determined according to I scheduling process estimates MCS final value, the embodiment of the present invention be can also continue to estimation MCS final value out is adaptively adjusted, to avoid it is subsequent due to wireless environment change the MCS final value that causes to estimate with Actual conditions deviation is larger.

As shown in Fig. 2, being specifically included for the implementation flow chart of another bandwidth adjusting method provided in an embodiment of the present invention Following step:

Step 21, in each scheduling process of eMBMS cell, the letter of each non-eMBMS terminal in eMBMS cell is obtained Channel state information, and according to the channel state information of the non-eMBMS terminal of each of acquisition, determine eMBMS in corresponding scheduling process MCS median.

Step 22, according to the MCS median determined in I scheduling process, determine that the MCS of eMBMS in the eMBMS cell is whole Value, wherein I is pre-set scheduling times threshold value.

It step 23, is the bandwidth to match with determining MCS final value by the Bandwidth adjustment of eMBMS in the eMBMS cell.

Step 21-23 is similar to above-mentioned steps 11-13, and details are not described herein.

Step 24, in each scheduling process after I times nearest scheduling process, judge I times nearest scheduling process Later and include the MCS median of the eMBMS determined in each scheduling process including this scheduling process and determine Whether the standard deviation of MCS final value is greater than pre-set standard deviation deviation value, until it is inclined to judge that the standard deviation is greater than standard deviation Until value.

Step 25, when judging that the standard deviation is greater than standard deviation deviation value, started according to scheduling process next time I times The MCS median determined in scheduling process, redefines the MCS final value of eMBMS in eMBMS cell, and will be in eMBMS cell The Bandwidth adjustment of eMBMS is the bandwidth to match with the MCS final value redefined, and returns to step 24.

Wherein step 24 and step 25 are a cyclic processes, when the above-mentioned standard difference for judging to determine in step 24 is little When pre-set standard deviation deviation value, it is returned to and continues to execute step 24, and when the above-mentioned standard for judging to determine is poor When greater than pre-set standard deviation deviation value, step 25 is just executed, execution step is returned again to after step 25 is finished 24。

Embodiment in order to better understand the present invention, below in conjunction with the specific specific implementation implemented to the embodiment of the present invention Process is illustrated.

As shown in figure 3, for a kind of architecture diagram of eMBMS bandwidth self-adaption adjustment system provided in an embodiment of the present invention, tool Body includes:

Measurement module, feedback module and adjustment module, in which:

(1) measurement module, for network side according to the uplink feedback of the common user in eMBMS cell, to each user The channel quality of current local environment measures.

Wherein, common user refers to the user using non-eMBMS terminal.

(2) feedback module determines the band of eMBMS user according to setting scheme for the channel quality according to common user Wide parameter, such as MCS, and feedback adjustment module.

Wherein, eMBMS user refers to the user using eMBMS terminal.

(3) module is adjusted, for the bandwidth parameter according to feedback module, distributing policy adjusts the bandwidth of eMBMS.

Based on the basic thought of the adjustment system of eMBMS bandwidth self-adaption provided by above-mentioned Fig. 3, the embodiment of the present invention is to band The specific implementation flow of wide method of adjustment is introduced, such as shown in figure 4, specifically comprising the following steps:

Step 41, the MCS initial value that the eMBMS of eMBMS cell is arranged is MCS0

Step 42, in this scheduling process, the channel state information of each non-eMBMS terminal in eMBMS cell is obtained, It is assumed to be f (Q).

Step 43, according to the channel state information f (Q) and pre-set network of the non-eMBMS terminal of each of acquisition Scheduling mechanism f (D) determines the MCS value of each non-eMBMS terminal in this scheduling process, i.e., following formula (1):

fn(MCS)=fn(Q)fn(D) (1)

Wherein, n is the quantity of non-eMBMS terminal in eMBMS cell.

Step 44, from the MCS value determined in this scheduling process, the smallest M MCS value is chosen, and according to formula (2) MCS value of non-eMBMS in this scheduling process is determined:

MCSIt is non-=max { f1(MCS) ... ..., fM(MCS)} (2)

Wherein, MCSIt is non-For the MCS value of non-eMBMS in this scheduling process;

f1(MCS) is to fMIt (MCS) is the smallest M MCS value in this scheduling process.

Step 45, the MCS median of eMBMS in this scheduling process is determined according to following formula (3):

MCSeMBMS=max { MCS0, MCSIt is non-} (3)

Wherein, MCSeMBMSFor the MCS median of eMBMS in this scheduling process.

Step 46, storage array { MCS is written into the MCS median of the eMBMS of this scheduling processEMBMS, i, wherein i is Current scheduling number.

Step 47, judge whether i is less than I, wherein I is pre-set scheduling times threshold value.

When judging i < I, return continues to execute step 42, that is, carries out scheduling process next time, i=i+1;

When judging i ≮ I, step 48 is executed.

Step 48, judge whether i is equal to I, when judging i=I, execute step 49, and when judging i ≠ I, it executes Step 410.

Step 49, after the long-time statistical of I scheduling process, the MCS final value of eMBMS is determined according to following formula (4), And after determining the MCS final value of eMBMS, return continues to execute step 42, that is, carries out scheduling process next time, i=i+1.

Wherein, MCSeFor the MCS final value of determining eMBMS.

It should be noted that in MCSeThe MCS value that eMBMS continues to use last time setting before determination uses if starting for the first time MCS0

Step 410, judge after I times nearest scheduling process and include each scheduling including this scheduling process The MCS median of determining eMBMS and the MCS determined in the processeStandard deviation whether to be not more than pre-set standard deviation inclined From value, i.e., whether meet formula (5):

Wherein, M is after I times nearest scheduling process and includes scheduling times including this scheduling process, and S is Pre-set standard deviation deviation value.

When judging to meet formula (5), that is to say, that determining MCSeIt is not much different with current wireless environment, so Determining MCSeIt remains unchanged, return continues to execute step 42, i=i+1.

When judging to be unsatisfactory for formula (5), that is to say, that determining MCSeThere are larger differences with current wireless environment Not, so needing to redefine MCSe.Therefore, it returns and continues to execute step 42, and scheduling times are reset, i=1, simultaneously will MCS0It is updated to MCSe, redefining out MCSeBefore, MCS final value also needs to continue to use MCSe, and pass through later MCSeIt is compared to determine the MCS median of eMBMS with the MCS value of non-eMBMS.

It is each non-in eMBMS cell by obtaining in each scheduling process of eMBMS cell in the embodiment of the present invention The channel state information of eMBMS terminal, and according to the channel state information of the non-eMBMS terminal of each of acquisition, determine corresponding adjust The MCS median of eMBMS determines eMBMS's further according to the MCS median determined in I scheduling process during degree MCS final value, and then be the bandwidth to match with determining MCS final value by the Bandwidth adjustment of eMBMS in eMBMS cell, make eMBMS The availability of frequency spectrum greatly promotes, while also improving the performance of eMBMS.

Further, in order to enable the MCS final value of the eMBMS determined preferably to adapt to network change, in root After the MCS median determined according to I scheduling process estimates MCS final value, the embodiment of the present invention be can also continue to estimation MCS final value out is adaptively adjusted, to avoid it is subsequent due to wireless environment change the MCS final value that causes to estimate with Actual conditions deviation is larger.

Based on the same inventive concept, a kind of Bandwidth adjustment device is also each provided in the embodiment of the present invention, due to above-mentioned The principle that device solves the problems, such as is similar to bandwidth adjusting method, therefore the implementation of above-mentioned apparatus may refer to the implementation of method, weight Multiple place repeats no more.

As shown in figure 5, being the structural schematic diagram of Bandwidth adjustment device provided in an embodiment of the present invention, comprising:

MCS median determining module 51, for each scheduling in enhanced multimedia broadcast multicast service eMBMS cell In the process, the channel state information of each non-eMBMS terminal in eMBMS cell is obtained, and whole according to the non-eMBMS of each of acquisition The channel state information at end determines the modulation and coding strategy MCS median of eMBMS in corresponding scheduling process;

MCS final value determining module 52, for according to determination in I scheduling process in the MCS median determining module 51 MCS median, determine the MCS final value of eMBMS in the eMBMS cell;Wherein, I is pre-set scheduling times threshold value;

Bandwidth adjustment module 53, for being true with the MCS final value by the Bandwidth adjustment of eMBMS in the eMBMS cell The bandwidth that the MCS final value that cover half block 52 determines matches.

Wherein, the MCS median determining module 51 specifically includes:

The MCS value determination unit 511 of non-eMBMS terminal, for the channel status according to the non-eMBMS terminal of each of acquisition Information and pre-set network scheduling mechanism determine the MCS value of each non-eMBMS terminal in corresponding scheduling process;

The MCS value determination unit 512 of non-eMBMS, for true according to the MCS value determination unit 511 of the non-eMBMS terminal The MCS value of each of fixed non-eMBMS terminal determines the MCS value of non-eMBMS in corresponding scheduling process;

MCS median determination unit 513, the MCS value determination unit 512 for the non-eMBMS determine non- The MCS initial value of the MCS value of eMBMS and pre-set eMBMS, by the MCS value of determining non-eMBMS and the eMBMS The larger value in MCS initial value is determined as the MCS median of eMBMS in corresponding scheduling process.

Wherein, the MCS final value determining module 52, is specifically used for:

When I is greater than 1, the average value of the MCS median determined in I scheduling process is determined as the eMBMS cell The MCS final value of middle eMBMS.

Wherein, described device further include:

Module 54 is readjusted, executes following subprocess 1 and subprocess 2 for recycling:

Subprocess 1, in each scheduling process after I times nearest scheduling process, judge I times nearest scheduling process Later and the MCS median for including the eMBMS determined in each scheduling process including this scheduling process and the MCS Whether the standard deviation of final value is greater than pre-set standard deviation deviation value, until judging that the standard deviation is greater than the standard deviation Until deviation value;

Subprocess 2, when judge the standard deviation be greater than the standard deviation deviation value when, opened according to scheduling process next time The MCS median determined in the I scheduling process of beginning, redefines the MCS final value of eMBMS in the eMBMS cell, and by institute The Bandwidth adjustment for stating eMBMS in eMBMS cell is the bandwidth to match with the MCS final value redefined, and is returned described in execution Subprocess 1.

Wherein, the readjustment module 54 is also used to:

When judging that the standard deviation is greater than the standard deviation deviation value, by the MCS initial value of pre-set eMBMS It is updated to determining MCS final value.

For convenience of description, above each section is divided by function describes respectively for each module (or unit).Certainly, exist Implement to realize the function of each module (or unit) in same or multiple softwares or hardware when the present invention.

When it is implemented, above-mentioned Bandwidth adjustment device can be set in network side (such as base station).

It should be understood by those skilled in the art that, the embodiment of the present invention can provide as method, system or computer program Product.Therefore, complete hardware embodiment, complete software embodiment or reality combining software and hardware aspects can be used in the present invention Apply the form of example.Moreover, it wherein includes the computer of computer usable program code that the present invention, which can be used in one or more, The computer program implemented in usable storage medium (including but not limited to magnetic disk storage, CD-ROM, optical memory etc.) produces The form of product.

The present invention be referring to according to the method for the embodiment of the present invention, the process of equipment (system) and computer program product Figure and/or block diagram describe.It should be understood that every one stream in flowchart and/or the block diagram can be realized by computer program instructions The combination of process and/or box in journey and/or box and flowchart and/or the block diagram.It can provide these computer programs Instruct the processor of general purpose computer, special purpose computer, Embedded Processor or other programmable data processing devices to produce A raw machine, so that being generated by the instruction that computer or the processor of other programmable data processing devices execute for real The device for the function of being specified in present one or more flows of the flowchart and/or one or more blocks of the block diagram.

These computer program instructions, which may also be stored in, is able to guide computer or other programmable data processing devices with spy Determine in the computer-readable memory that mode works, so that it includes referring to that instruction stored in the computer readable memory, which generates, Enable the manufacture of device, the command device realize in one box of one or more flows of the flowchart and/or block diagram or The function of being specified in multiple boxes.

These computer program instructions also can be loaded onto a computer or other programmable data processing device, so that counting Series of operation steps are executed on calculation machine or other programmable devices to generate computer implemented processing, thus in computer or The instruction executed on other programmable devices is provided for realizing in one or more flows of the flowchart and/or block diagram one The step of function of being specified in a box or multiple boxes.

Although preferred embodiments of the present invention have been described, it is created once a person skilled in the art knows basic Property concept, then additional changes and modifications may be made to these embodiments.So it includes excellent that the following claims are intended to be interpreted as It selects embodiment and falls into all change and modification of the scope of the invention.

Obviously, various changes and modifications can be made to the invention without departing from essence of the invention by those skilled in the art Mind and range.In this way, if these modifications and changes of the present invention belongs to the range of the claims in the present invention and its equivalent technologies Within, then the present invention is also intended to include these modifications and variations.

Claims (8)

1. a kind of bandwidth adjusting method characterized by comprising
In each scheduling process of enhanced multimedia broadcast multicast service eMBMS cell, obtain each non-in eMBMS cell The channel state information of eMBMS terminal;
According to the channel state information of the non-eMBMS terminal of each of acquisition and pre-set network scheduling mechanism, determining pair Answer the MCS value of each non-eMBMS terminal in scheduling process;
According to the MCS value of each of determining non-eMBMS terminal, the MCS value of non-eMBMS in corresponding scheduling process is determined;
Compare the MCS value of determining non-eMBMS and the MCS initial value of pre-set eMBMS, by the MCS of determining non-eMBMS The larger value in the MCS initial value of value and the eMBMS is determined as the MCS median of eMBMS in corresponding scheduling process;
According to the MCS median determined in I scheduling process, the MCS final value of eMBMS in the eMBMS cell is determined;Wherein, I For pre-set scheduling times threshold value;
It is the bandwidth to match with determining MCS final value by the Bandwidth adjustment of eMBMS in the eMBMS cell.
2. the method as described in claim 1, which is characterized in that according to the MCS median determined in I scheduling process, determine The MCS final value of eMBMS in the eMBMS cell, specifically includes:
When I is greater than 1, the average value of the MCS median determined in I scheduling process is determined as in the eMBMS cell The MCS final value of eMBMS.
3. the method as described in claim 1, which is characterized in that by the Bandwidth adjustment of eMBMS in the eMBMS cell be with it is true After the bandwidth that fixed MCS final value matches, the method also includes following cyclic processes:
Subprocess 1, in each scheduling process after I times nearest scheduling process, after judging I times nearest scheduling process And MCS median and the MCS final value that include the eMBMS determined in each scheduling process including this scheduling process Standard deviation whether be greater than pre-set standard deviation deviation value, until judge the standard deviation be greater than the standard deviation deviation Until value;
Subprocess 2, when judge the standard deviation be greater than the standard deviation deviation value when, started according to scheduling process next time The MCS median determined in I scheduling process redefines the MCS final value of eMBMS in the eMBMS cell, and will be described The Bandwidth adjustment of eMBMS is the bandwidth to match with the MCS final value redefined in eMBMS cell, and returns and execute the son Process 1.
4. method as claimed in claim 3, which is characterized in that when judge the standard deviation be greater than the standard deviation deviation value When, the method also includes:
The MCS initial value of pre-set eMBMS is updated to determining MCS final value.
5. a kind of Bandwidth adjustment device characterized by comprising
MCS median determining module, for each scheduling process in enhanced multimedia broadcast multicast service eMBMS cell In, obtain the channel state information of each non-eMBMS terminal in eMBMS cell;According to the letter of the non-eMBMS terminal of each of acquisition Channel state information and pre-set network scheduling mechanism determine the MCS of each non-eMBMS terminal in corresponding scheduling process Value;According to the MCS value of each of determining non-eMBMS terminal, the MCS value of non-eMBMS in corresponding scheduling process is determined;Compare determination Non- eMBMS MCS value and pre-set eMBMS MCS initial value, by the MCS value of determining non-eMBMS and described The larger value in the MCS initial value of eMBMS is determined as the MCS median of eMBMS in corresponding scheduling process;
MCS final value determining module, among according to the MCS determined in I scheduling process in the MCS median determining module Value, determines the MCS final value of eMBMS in the eMBMS cell;Wherein, I is pre-set scheduling times threshold value;
Bandwidth adjustment module, for being and the MCS final value determining module by the Bandwidth adjustment of eMBMS in the eMBMS cell The bandwidth that determining MCS final value matches.
6. device as claimed in claim 5, which is characterized in that the MCS final value determining module is specifically used for:
When I is greater than 1, the average value of the MCS median determined in I scheduling process is determined as in the eMBMS cell The MCS final value of eMBMS.
7. device as claimed in claim 5, which is characterized in that described device further include:
Module is readjusted, executes following subprocess 1 and subprocess 2 for recycling:
Subprocess 1, in each scheduling process after I times nearest scheduling process, after judging I times nearest scheduling process And MCS median and the MCS final value that include the eMBMS determined in each scheduling process including this scheduling process Standard deviation whether be greater than pre-set standard deviation deviation value, until judge the standard deviation be greater than the standard deviation deviation Until value;
Subprocess 2, when judge the standard deviation be greater than the standard deviation deviation value when, started according to scheduling process next time The MCS median determined in I scheduling process redefines the MCS final value of eMBMS in the eMBMS cell, and will be described The Bandwidth adjustment of eMBMS is the bandwidth to match with the MCS final value redefined in eMBMS cell, and returns and execute the son Process 1.
8. device as claimed in claim 7, which is characterized in that the readjustment module is also used to:
When judging that the standard deviation is greater than the standard deviation deviation value, the MCS initial value of pre-set eMBMS is updated For determining MCS final value.
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