CN110351780A - A kind of communication means based on code cache, system and storage medium - Google Patents
A kind of communication means based on code cache, system and storage medium Download PDFInfo
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- CN110351780A CN110351780A CN201910519889.7A CN201910519889A CN110351780A CN 110351780 A CN110351780 A CN 110351780A CN 201910519889 A CN201910519889 A CN 201910519889A CN 110351780 A CN110351780 A CN 110351780A
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- 238000004891 communication Methods 0.000 title claims abstract description 46
- 230000005540 biological transmission Effects 0.000 claims abstract description 36
- 238000005516 engineering process Methods 0.000 claims abstract description 26
- 238000000034 method Methods 0.000 claims abstract description 14
- 230000000875 corresponding effect Effects 0.000 description 7
- 230000006870 function Effects 0.000 description 7
- 238000010586 diagram Methods 0.000 description 4
- 230000003139 buffering effect Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/50—Network services
- H04L67/56—Provisioning of proxy services
- H04L67/568—Storing data temporarily at an intermediate stage, e.g. caching
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W28/00—Network traffic management; Network resource management
- H04W28/02—Traffic management, e.g. flow control or congestion control
- H04W28/10—Flow control between communication endpoints
- H04W28/14—Flow control between communication endpoints using intermediate storage
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/06—Protocols specially adapted for file transfer, e.g. file transfer protocol [FTP]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W28/00—Network traffic management; Network resource management
- H04W28/02—Traffic management, e.g. flow control or congestion control
- H04W28/0289—Congestion control
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Abstract
The invention discloses a kind of communication means based on code cache, system and storage medium, method includes: the resident user information obtained in region；The demand file of the resident user is recorded, active file database is constructed；When determining that present period is network offpeak period, resident user information and active file database are updated using the code cache scheme based on file size, and file is sent to user according to file size and file popularity；When determining that present period is network peak period, according to the user request information received, identifies demand file size and determine the affiliated group of user, same part data APMB package is then sent to same group of user using multicast transmission technology.The present invention can alleviate the network blockage of peak period, reduce network pressure by multicast transmission technology, improve efficiency and practicability, can be widely applied to field of communication technology.
Description
Technical field
The present invention relates to field of communication technology, especially a kind of communication means based on code cache, system and storage are situated between
Matter.
Background technique
With universal and the 5G epoch the arrival of 4G technology, user increasingly increases the demand of wireless communication,
Exponentially type increases for network flow in denser population areas, and operator is faced with that frequency spectrum resource is limited and electricity charge spending is soaring
Double challenge.Under the premise of herein, network throughput how is reduced, mitigating network load becomes people's topic of concern.And net
Network flow has the characteristics that significantly change in one day different time sections again, therefore, a kind of network congestion when alleviating peak
Method is: making full use of the memory being distributed on network (terminal user, server, router etc.) pre- slow in off-peak period
Deposit content；And in peak period, service side (base station) sends file by shared link according to the request and caching of user, uses
Family can restore required file.
That is, the wireless communication problems between user and base station are roughly divided into two stages, i.e. pre-cache (non-peak
Period) stage and wireless transmission (peak period) stage, therefore the content for pre-cache of how making rational planning for, and according to caching and
User requests the file sent needed for determining, is the key point for solving network congestion.Currently, it is a kind of be effectively based on more than
The caching and transmission plan of the centralization coding of " one-to-many " frame have been suggested, and have expanded to many concrete scenes: such as
Caching under different file popularities, inline cache, distributed caching, hierarchical network caching etc..Traditional centralization coding
Buffering scheme is realized under the identical hypothesis of file size, however in reality, the size of user's demand file there may be
Relatively big difference, therefore the program cannot be applied directly；The prior art is retrieved simultaneously and is found, currently based on different file sizes
The research of caching and transmission plan is still rare.In summary, most traditional non-coding caching and unicast communication are in network flow
Under the situation of surge, huge network pressure, and inefficiency will necessarily be brought；And classical centralization code cache it is theoretical and
Communication mode excessively idealizes, and not can solve realistic problem.
Summary of the invention
In view of this, a kind of embodiment of the present invention provides high-efficient and practicability high, the communication party based on code cache
Method, system and storage medium.
In a first aspect, the embodiment of the invention provides a kind of communication means based on code cache, comprising the following steps:
Obtain the resident user information in region；
The demand file of the resident user is recorded, active file database is constructed；
When determining that present period is network offpeak period, using the code cache scheme based on file size to resident user
Information and active file database are updated, and send file to user according to file size and file popularity；
When determining that present period is network peak period, according to the user request information received, identify that demand file is big
The small and determining affiliated group of user, then sends same part data APMB package to same group of user using multicast transmission technology.
Further, the step for the resident user information obtained in region, specifically:
According to user and base station number of communications within a preset period of time and file request number, determine that resident user is believed
Breath.
Further, when the determining present period is network offpeak period, using the code cache side based on file size
Case is updated resident user information and active file database, and is sent according to file size and file popularity to user
The step for file, specifically:
Determine present period be network offpeak period when, judge whether to receive user request information, if so, directly to
User terminal unicast sends demand file；Conversely, then according to file size and file popularity to resident user information and common text
Part database is updated, and sends pre-cache more new command to user terminal.
Further, when the determining present period is network peak period, according to the user request information received, identification
Demand file size simultaneously determines the affiliated group of user, then sends same part data packet to same group of user using multicast transmission technology
The step for file, comprising the following steps:
When determining that present period is network peak period, judge whether user is resident user according to user request information,
If so then execute next step；Conversely, then sending demand file to user terminal unicast；
Judge whether the corresponding demand file of user request information has stored in active file database, if so,
It performs the next step rapid；Conversely, then sending demand file to user terminal unicast；
According to the corresponding demand file size of user request information, the affiliated group of user is determined；
According to the affiliated group of user, same part data APMB package is sent to same group of user using multicast transmission technology.
Further, described according to the affiliated group of user, same part data are sent to same group of user using multicast transmission technology
The step for APMB package, comprising the following steps:
Judge whether the other number of users of group belonging to user is full, if so, using using multicast transmission technology the group
Family sends same part data APMB package, and empties the user in the group；Conversely, then performing the next step rapid；
Judge whether the other period of reservation of number of group belonging to user is greater than preset threshold value, if so, using multicast transmission
Technology sends same part data APMB package to this group of user, and empties the user in the group；It is used conversely, then returning to execution judgement
The other number of users of group belonging to family whether full step.
Second aspect, the embodiment of the invention also provides a kind of communication means based on code cache, comprising the following steps:
User request information is issued to base station；
The demand file that base station is issued by unicast is received, or receives the data APMB package that base station is issued by multicast；
The update operation of pre-cache file is carried out according to the pre-cache more new command that base station is sent.
The third aspect, the embodiment of the invention also provides a kind of communication systems based on code cache, comprising:
Module is obtained, for obtaining the resident user information in region；
Module is constructed, for recording the demand file of the resident user, constructs active file database；
Ebb processing module, when for determining that present period is network offpeak period, using the coding based on file size
Buffering scheme is updated resident user information and active file database, and according to file size and file popularity to
Family sends file；
Peak processing module when for determining that present period is network peak period, requests letter according to the user received
Breath identifies demand file size and determines the affiliated group of user, is then sent using multicast transmission technology to same group of user same
Part data APMB package.
Fourth aspect, the embodiment of the invention also provides a kind of communication systems based on code cache, including base station and use
Family end；
Wherein, the base station includes:
Module is obtained, for obtaining the resident user information in region；
Module is constructed, for recording the demand file of the resident user, constructs active file database；
Ebb processing module, when for determining that present period is network offpeak period, using the coding based on file size
Buffering scheme is updated resident user information and active file database, and according to file size and file popularity to
Family sends file；
Peak processing module when for determining that present period is network peak period, requests letter according to the user received
Breath identifies demand file size and determines the affiliated group of user, is then sent using multicast transmission technology to same group of user same
Part data APMB package；
The user terminal includes:
Request module, for issuing user request information to base station；
File reception module, the demand file issued for receiving base station by unicast, or receive base station and broadcast by group
Data APMB package out；
Update module, the pre-cache more new command for being sent according to base station carry out the update operation of pre-cache file.
5th aspect, the embodiment of the invention also provides a kind of communication systems based on code cache, comprising:
At least one processor；
At least one processor, for storing at least one program；
When at least one described program is executed by least one described processor, so that at least one described processor is realized
The communication means based on code cache.
6th aspect, the embodiment of the present invention also provide a kind of storage medium, wherein it is stored with the executable instruction of processor,
The executable instruction of the processor is when executed by the processor for executing the communication means based on code cache.
One or more technical solutions in the embodiments of the present invention have the advantages that the embodiment of the present invention passes through
The resident user information in region is determined to construct active file database, then carries out data pre-cache in network offpeak period
It updates, data packet is sent to every group of user by multicast transmission technology in network peak period；The present invention realizes network communication
Shunting, the network blockage of peak period can be alleviated, network pressure is reduced by multicast transmission technology, improves efficiency；
In addition, the conventional center code cache scheme realized compared to the existing hypothesis based on same file size, energy of the present invention
It is enough that user grouping is dynamically determined according to the size of demand file, improve practicability.
Detailed description of the invention
Fig. 1 is the overall step flow chart of the embodiment of the present invention；
Fig. 2 is the communication system block schematic illustration of the embodiment of the present invention；
Fig. 3 is the flow diagram of the offpeak period of the embodiment of the present invention；
Fig. 4 is the flow diagram of the peak period of the embodiment of the present invention.
Specific embodiment
The present invention is further explained and is illustrated with specific embodiment with reference to the accompanying drawings of the specification.For of the invention real
The step number in example is applied, is arranged only for the purposes of illustrating explanation, any restriction is not done to the sequence between step, is implemented
The execution sequence of each step in example can be adaptively adjusted according to the understanding of those skilled in the art.
It is communicated the invention proposes a kind of mobile terminal device (such as mobile phone, wireless router etc.) with realization between base station
System is realized using centralization code cache scheme and multicast transmission technology based on different file sizes at network peak
Section meets the network communication demand of multiple users of base station covering simultaneously, is effectively reduced network transmission load, improves data
Efficiency of transmission, a possibility that reducing network blockage and the transmission energy consumption for reducing wireless communication system, as shown in Figure 1, this is
System works according to the following steps:
S1, base station pass through the acquisition such as VLR (VLR Visitor Location Register) and HLR (home location register) module first and come
To the resident user information in its compass of competency；
S2, in the local cache equipment of base station, record these resident users for the previous period file (as regard
Frequently, game, the resources such as music) record is requested, it is known as active file database in the present embodiment；
Specifically, due in reality, there may be a large amount of user in base station institute compass of competency, and the local of base station
Cache size is limited, therefore can not all users and All Files all be used with the scheme of multicast transmission, it is therefore desirable to choose
Those users often communicated with base station (i.e. resident user) and often requested file, are stored in base for their information
It stands in local cache.
For confirming the mode of resident user and active file, the present embodiment is according to user and base station in some time range
The number and file of communication are requested number to judge, specific threshold value can be set according to actual scene；For common text
Part database, inside stores several files, and the present embodiment defines this document and integrates as F={ F1,F2,...,FN, to simplify the analysis
And explanation, it is assumed that the ratio of this document concentration any two file size is all 2 index times, i.e. Fi/Fk=2^ α (α ∈ Z), i
It is the subscript of file with k, it is specifically, big for file centralized documentation for distinguishing each file in file set
Small maximum file, if its size is benchmark file size F, for size (F/2, F] file in range, using zero padding
Its size is converted to F by method；For size (F/4,2/F] file in range, its size is become using zero-padding method
For F/2 ... and so on；Later, file is divided into several groups { T by size1,T2,...,Tn, it include all sizes in every group
Identical active file, is defined on TkIn group, the size of file is Fk, the total quantity of file is Nk。
S3, in network offpeak period, in advance according to the code cache scheme of different file sizes in subscriber terminal equipment
Storage section active file；
Specifically, it in network offpeak period, needs to carry out pre-cache, specific embodiment party to the file in frequently-used data library
Case is as follows: as illustrated in fig. 2, it is assumed that all user terminals (such as mobile terminal) available cache memory space M all having the same, for every
Group TkIn file, need in view of its caching proportionality coefficient q in the terminalk；Preferably, in the present embodiment
Wherein, (T is total file group number), i.e., each size are FkActive file be assigned to greatly in each lane terminal
Small is qkFkSpatial cache, in the present embodiment, for TkGroup file, the spatial cache that can be used is Mk=qkNkFkWithout
It is M.
If receiving the file request information of user's transmission in network offpeak period, the present embodiment is directly to user's list
It broadcasts and gives its requested file；Otherwise when bandwidth (i.e. base station available free), the present embodiment is used according to active file database
Code cache scheme based on different file sizes and file popularity sends pre-cache file to resident user.Wherein, file
Popularity refers to the times or frequency that single file is requested by all users whithin a period of time.
S4, in network peak period, user issues file request to base station, and base station is recorded the request of user's sending, sentenced
The attribute of disconnected this document, and user is grouped according to the file size that user requests, for similar in demand file size
User, base station send same part data packet to this group of user using multicast transmission technology；
S5, user pass through existing caching in the data packet received and terminal device and decode required file, communicate
It completes；
Specifically, in the step S4-S5, firstly, base station is that total T group file initializes n in active file database
Empty user's waiting list { W1,W2,...,Wn, later, whenever base station receives the communication request that user sends from uplink
Afterwards, the operation of operation or directly unitcast request file is just grouped to user according to user request information, when some queue
WkFull (number of users is equal to the sum of all resident user quantity in the queue, will not occur under normal conditions) or have user's
Waiting time reaches threshold value, then sends a data to restore requested document to the terminal device multicast of this group of user
Packet, empties queue W laterk, sign off.
For the waiting time threshold value mentioned in upper section, refer to that base station is connected to the request of user and sends to base station to the user
The maximum time interval of data packet, is explained as follows: due in ideal model, assuming that user issues on same time point
Request, however in reality, the request of user is asynchronous, if base station is sent to its unicast at once once the request for receiving user
Data packet has just missed the chance of multicast transmission, causes greatly increasing for Internet traffic；Conversely, if base station receives last
Unify decision after the request of a user again, although traffic very little, will cause some users and wait the too long of time, therefore need
Make tradeoff.Usually, the receptible high latency of user and the size of its demand file are positively correlated: such as a
The game that user requests one 4G of downloading big, b user request the music of one head 32M of downloading, then, compared with b, that not caned in base station
The request of fast-response a, to wait subsequent possible multicast gain machine meeting (file for thering are other users also to request 4G big).Cause
This, the waiting time threshold value t of each user and its requested file FwkSize is related, i.e. t=f (Fwk), it takes in the present embodiment
t∝FwkIn this way, once the time for having user to wait in queue, beyond t, base station begins to send data to the user in the queue
Packet.
S6, in network offpeak period, base station updates resident user information and active file database, and mobile device terminal is more
New pre-cache file；
Specifically, it is contemplated that active file and resident user have timeliness, it is therefore desirable to periodically carry out to these information
It updates, the implementation of concrete scheme is as follows: the update for resident user collection, if detecting some non-resident user in the one before time
The number that enlivens of section enlivens number lower than normal in the one before period higher than the threshold value of non-resident user or some resident user
In the threshold value of user, then (or kicking out of) resident user is added into next off-peak period and concentrated.Do not exist for some
File F in active file database1, it is assumed that its request number of times within the previous period has exceeded the threshold of non-active file
Value, then record the information of this document, waits until off-peak period, and a size is found in active file database not in base station first
Less than this document and least common file F2, then by F1, F2Nearest request number of times compares, if F1Request number of times
More, then by F2It is deleted from active file database and by F1It puts into library, otherwise remains unchanged, and by the F of storage1Letter
Breath is deleted.After the active file database update to base station, base station is sent to resident user by downlink and is communicated
Request, if detecting, some resident user is in active state, according to the method for step S3, encodes and to user's unicast
The file of its required pre-cache is sent, the pre-cache file of user just updates completion.To sum up, the communication system is from peak period-
As soon as a duty cycle for offpeak period all terminates, the arrival of next peak period is next detected, is ready to enter
Next duty cycle.
Being assumed below in the compass of competency of a base station has 4 resident users, detailed description of the present invention scheme it is specific
Implementation steps:
In the region of one base station administration, there are four resident user 1,2,3,4, having size in active file database is F
Two file A, B ∈ T1File C, the D ∈ T for being F/2 with two sizes2, then basis
It is found that q1=q2, it is assumed that k*q1=k*q2=2 (k is total resident user number, k=4), according to
Four each files of file are divided into 6 entirely different subfiles, subscript is 12,13,14,23 respectively,
24,34 (being exactly to collect to appoint all possible situation for taking two users in { 1,2,3,4 } from user).In offpeak period, start into
Row pre-cache, deposited into according to the subscript of subfile in the spatial cache of corresponding user (such as A12User 1 and user 2 should be given
It deposits, D34It should be deposited to user 3 and user 4, and so on).In peak period, it is assumed that user 1 requests file A at first, 1
Before waiting time threshold value arrives, 3 users request file C, and 2 users request B, and 4 users do not issue request.Due to 3 use
The size of family demand file is different with 1,2, for queue { 1,2 }, is considered as 1 and 2 and has issued request, 3 and 4 request one big
The small empty file φ for being 0, in this way, according to encoding law, Ying Xiang 1,2 sends such one group when 1 waiting time threshold value arrives
Data packet:(φ is sky, actually A34), WhereinAs step-by-step exclusive or symbol, it is identical for two sizes, if by
File A, the B that dry position bit string is constituted,To be formed a new bit string (such as Among the aboveIt represents:The new bit string formed is carried out with C again With
This analogizes.Existing file in above-mentioned 1 and 2 data sent according to base station and its spatial cache, so that it may obtain them and respectively ask
The file A and B asked；Next, before 3 waiting time threshold value arrives again, it is assumed that user 4 has issued demand file D, and 1 sends out
Demand file B is gone out, then being considered as 3 and 4 C and D, 1 and 2 is respectively requested to request a size being 0 for queue { 3,4 }
Empty file φ, with reference to 1,2 send data packet coding mode, to 3,4 send one group of data packet, so that it may restore them
The file needed.
The update method of resident user collection and active file database has been explained in detail in summary of the invention above, when
When always number of users k is larger, total transmission quantity in link is almost unrelated with k, therefore in the range of conditions permit, can be as far as possible
The user in compass of competency mostly is allowed to become resident user, to exploit the multicast gain of peak period.
As shown in figure 3, the specific implementation step of code cache scheme of the present embodiment based on different file sizes is as follows:
In network offpeak period:
1. firstly, in network offpeak period, file set [T] that n are divided according to file size=T1, T2 ...,
Tn }, for Tk ∈ [T], according toAnd tl=k*qlCalculate the q in every group of TkkAnd tk；
After 2., collects in [k]={ 1,2,3 ..., k } in the user of k resident user, take the son for being tk all over all length
Integrate that (suitably modified M makes its integer if tk is not as integer, because the available cache memory space of usually user is also not and immobilizes
), if the total m of such subset (m=C (k, tk), C are the symbols of number of combinations) is a, then for each of Tk file, all will
M parts are divided into the sizes such as its, wherein each one's share of expenses for a joint undertaking file uniquely corresponds to some subset (i.e. m one's share of expenses for a joint undertaking file and m subset shape
At one-to-one correspondence), later, each subfile is dealt into each user's included in the corresponding subset of this document by base station
In spatial cache；
3. repeating the above steps 2 for all files in Tk, that is, complete the pre-cache work in a file set；
4. for each file set, 1 and 2 is repeated the above steps, that is, complete the pre-cache work of all active files.
In addition, as shown in figure 4, network peak period: (the same symbol wherein, occurred in the present embodiment its represent contain
Justice is identical, and details are not described herein)
1. creating n empty waiting list { W1, W2, W3 ..., Wn } first；
2. receiving the request of user, it is added in corresponding waiting list according to the size of user's demand file；
3. if then giving should have the waiting time for having some user in some waiting list Wk to reach threshold value or the queue full
Group user sends one group of data packet in the way of 4；
4. taking length in [k] is the subset of tk+1, if the subset is o；
5. taking a certain user h ∈ o in o, according to Wk, set o and h, its corresponding offpeak period shape can be found
At a subfile X, this subfile is: in the Tk file set, corresponding set o in that file of user h request
The subfile (o { h } represents the new set formed after set o removal element h) of { h }；
6. step 5 is repeated, until all users in o are taken, in this way, will form a subfile X1 every time,
X2 ..., Xtk+1, therefore, form such a bit stringIt is denoted as Ai；
7. step 4 is repeated, 5,6, in this way, will form file A1, A2 ..., an A to be sent every timeC(k,tk+1), by institute
There are these files to form a data packet, multicast is sent to all users in Wk, and user is slow with it according to the file received
The original content in space is deposited, the file of its request is decoded, empties queue Wk, sign off；
8. step 2 is repeated, until peak period terminates.
In conclusion compared with prior art, the present invention has the advantages that following two:
1. realizing the shunting of network communication, alleviates the network blockage of peak period, be mainly reflected in following two points: ebb
Period carries out pre-cache work in advance, although network throughput when increasing ebb, exploitation multicast gain is mentioned when being peak
Necessary condition is supplied；When peak, staggering time point sends data packet to every group of user, also functions to certain mitigation blocking and makees
With, while also reducing communication error rate；
2, a practicable solution is provided for the code cache of different file sizes and transmission, when in system
When the sum of All Files size >=8M (M is the governable spatial cache size of each user), the transmission rate R1 of the program with
The transmission rate R2 of Ideal Optimization Scheme meets R1=Θ R2, wherein Θ represents R1=C1*R2+C2, wherein C1, and C2 is constant.
That is, for meet this specification description a communication system, using the code cache scheme proposed in the present invention into
The difference of row communication, rate and theoretical reachable optimal rate is only embodied on two constants C1 and C2, and with the communication system
Other variables in system are unrelated, such as resident user number k, active file number N etc..Certainly, R1 >=R2.
The embodiment of the invention also provides a kind of communication systems based on code cache, comprising:
At least one processor；
At least one processor, for storing at least one program；
When at least one described program is executed by least one described processor, so that at least one described processor is realized
The communication means based on code cache.
Suitable for this system embodiment, this system embodiment is implemented content in above method embodiment
Function is identical as above method embodiment, and the beneficial effect reached and above method embodiment beneficial effect achieved
It is identical.
In addition, the embodiment of the invention also provides a kind of storage mediums, wherein being stored with the executable instruction of processor, institute
The executable instruction of processor is stated when executed by the processor for executing the communication means based on code cache.
In some selectable embodiments, the function/operation mentioned in a block diagram can not be mentioned according to operational illustrations
The sequence arrived occurs.For example, depending on related function/operation, two boxes continuously shown can actually be by substantially
On simultaneously execute or the box can be performed sometimes with reverse order.In addition, presented in flow chart of the invention and
The embodiment of description is provided in an illustrative manner, and it is an object of the present invention to provide technology is more completely understood.Disclosed method is not
It is limited to operation presented herein and logic flow.Selectable embodiment is it is contemplated that the wherein sequence quilt of various operations
The sub-operation of a part for changing and being wherein described as larger operation is executed independently.
Although in addition, describing the present invention under the background of functional module and being illustrated in the form of block diagram
It is bright, but it is to be understood that, unless otherwise indicated, one or more of the function and/or feature can be collected
At in single physical device and/or software module or one or more functions and/or feature can be filled in individual physics
Set or software module in be implemented.It will also be appreciated that the practical realization in relation to each module is discussed in detail for understanding
The present invention is unnecessary.More specifically, it is contemplated that the attribute of various functional modules, function in device disclosed herein
In the case where internal relations, it will understand that the practical realization of the module in the routine techniques of engineer.Therefore, this field skill
Art personnel can realize this illustrated in detail in the claims hair with ordinary skill in the case where being not necessarily to undue experimentation
It is bright.It will also be appreciated that disclosed specific concept is merely illustrative, it is not intended to limit the scope of the present invention, this
The range of invention is determined by the full scope of the appended claims and its equivalent program.
It is to be illustrated to preferable implementation of the invention, but the present invention is not limited to the embodiment above, it is ripe
Various equivalent deformation or replacement can also be made on the premise of without prejudice to spirit of the invention by knowing those skilled in the art, this
Equivalent deformation or replacement are all included in the scope defined by the claims of the present application a bit.
Claims (10)
1. a kind of communication means based on code cache, it is characterised in that: the following steps are included:
Obtain the resident user information in region；
The demand file of the resident user is recorded, active file database is constructed；
When determining that present period is network offpeak period, using the code cache scheme based on file size to resident user information
It is updated with active file database, and file is sent to user according to file size and file popularity；
When determining that present period is network peak period, according to the user request information received, demand file size is identified simultaneously
It determines the affiliated group of user, same part data APMB package is then sent to same group of user using multicast transmission technology.
2. a kind of communication means based on code cache according to claim 1, it is characterised in that: in the acquisition region
Resident user information the step for, specifically:
According to user and base station number of communications within a preset period of time and file request number, resident user information is determined.
3. a kind of communication means based on code cache according to claim 1, it is characterised in that: when the determination is current
When section is network offpeak period, using the code cache scheme based on file size to resident user information and active file data
Library is updated, and the step for send file to user according to file size and file popularity, specifically:
When determining that present period is network offpeak period, judge whether to receive user request information, if so, directly to user
Unicast is held to send demand file；Conversely, then according to file size and file popularity to resident user information and active file number
It is updated according to library, and sends pre-cache more new command to user terminal.
4. a kind of communication means based on code cache according to claim 1, it is characterised in that: when the determination is current
When section is network peak period, according to the user request information received, identifies demand file size and determine affiliated group of user
Not, then using multicast transmission technology to same group of user's transmission same part data APMB package the step for, comprising the following steps:
When determining that present period is network peak period, judge whether user is resident user according to user request information, if
It then performs the next step rapid；Conversely, then sending demand file to user terminal unicast；
Judge whether the corresponding demand file of user request information has stored in active file database, if so, executing
Next step；Conversely, then sending demand file to user terminal unicast；
According to the corresponding demand file size of user request information, the affiliated group of user is determined；
According to the affiliated group of user, same part data APMB package is sent to same group of user using multicast transmission technology.
5. a kind of communication means based on code cache according to claim 4, it is characterised in that: described according to user institute
The step for belonging to group, same part data APMB package sent to same group of user using multicast transmission technology, comprising the following steps:
Judge whether the other number of users of group belonging to user is full, if so, sending out using multicast transmission technology this group of user
Same part data APMB package is sent, and empties the user in the group；Conversely, then performing the next step rapid；
Judge whether the other period of reservation of number of group belonging to user is greater than preset threshold value, if so, using multicast transmission technology
Same part data APMB package is sent to this group of user, and empties the user in the group；Conversely, then returning to execution judges user institute
The other number of users of category group whether full step.
6. a kind of communication means based on code cache, it is characterised in that: the following steps are included:
User request information is issued to base station；
The demand file that base station is issued by unicast is received, or receives the data APMB package that base station is issued by multicast；
The update operation of pre-cache file is carried out according to the pre-cache more new command that base station is sent.
7. a kind of communication system based on code cache, it is characterised in that: include:
Module is obtained, for obtaining the resident user information in region；
Module is constructed, for recording the demand file of the resident user, constructs active file database；
Ebb processing module, when for determining that present period is network offpeak period, using the code cache based on file size
Scheme is updated resident user information and active file database, and is sent out according to file size and file popularity to user
Send file；
Peak processing module when for determining that present period is network peak period, according to the user request information received, is known
It does not invite and seeks file size and determine the affiliated group of user, same part data are then sent to same group of user using multicast transmission technology
APMB package.
8. a kind of communication system based on code cache, it is characterised in that: including base station and user terminal；
Wherein, the base station includes:
Module is obtained, for obtaining the resident user information in region；
Module is constructed, for recording the demand file of the resident user, constructs active file database；
Ebb processing module, when for determining that present period is network offpeak period, using the code cache based on file size
Scheme is updated resident user information and active file database, and is sent out according to file size and file popularity to user
Send file；
Peak processing module when for determining that present period is network peak period, according to the user request information received, is known
It does not invite and seeks file size and determine the affiliated group of user, same part data are then sent to same group of user using multicast transmission technology
APMB package；
The user terminal includes:
Request module, for issuing user request information to base station；
File reception module, the demand file issued for receiving base station by unicast, or receive what base station was issued by multicast
Data APMB package；
Update module, the pre-cache more new command for being sent according to base station carry out the update operation of pre-cache file.
9. a kind of communication system based on code cache, it is characterised in that: include:
At least one processor；
At least one processor, for storing at least one program；
When at least one described program is executed by least one described processor, so that at least one described processor is realized as weighed
Benefit requires the communication means described in any one of 1-6 based on code cache.
10. a kind of storage medium, wherein being stored with the executable instruction of processor, it is characterised in that: the processor is executable
Instruction when executed by the processor for executes such as the communication party of any of claims 1-6 based on code cache
Method.
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