CN107943716A - A kind of data cached collocation method and device - Google Patents

A kind of data cached collocation method and device Download PDF

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Publication number
CN107943716A
CN107943716A CN201610891322.9A CN201610891322A CN107943716A CN 107943716 A CN107943716 A CN 107943716A CN 201610891322 A CN201610891322 A CN 201610891322A CN 107943716 A CN107943716 A CN 107943716A
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China
Prior art keywords
access device
data
target
access
controller
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Inventor
赵祺阳
谢会琳
侯蓉晖
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Huawei Technologies Co Ltd
Xidian University
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Huawei Technologies Co Ltd
Xidian University
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Priority to CN201610891322.9A priority Critical patent/CN107943716A/en
Publication of CN107943716A publication Critical patent/CN107943716A/en
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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F12/00—Accessing, addressing or allocating within memory systems or architectures
    • G06F12/02—Addressing or allocation; Relocation
    • G06F12/08—Addressing or allocation; Relocation in hierarchically structured memory systems, e.g. virtual memory systems
    • G06F12/0802—Addressing of a memory level in which the access to the desired data or data block requires associative addressing means, e.g. caches
    • G06F12/0866—Addressing of a memory level in which the access to the desired data or data block requires associative addressing means, e.g. caches for peripheral storage systems, e.g. disk cache
    • G06F12/0871—Allocation or management of cache space

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  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

The invention discloses a kind of data cached collocation method and device, the data cached in advance to solve access device in the prior art are unsatisfactory for user's real-time requirement, cause consumption backhaul resources it is more the problem of.In the method, after controller receives the data request information of the first access device, can be that first access device distribution target treats data cached information aggregate, wherein, the target treats that data cached information aggregate includes accessing the information of the first data of the target terminal device request download of first access device, and accesses the information of the second data of the target terminal device request download of other access devices.So, first access device can cache first data and second data, so that when the target terminal equipment subsequent request of access first access device downloads second data, second data are reacquired by back haul link without first access device, so as to reduce backhaul resources consumption.

Description

A kind of data cached collocation method and device
Technical field
The present invention relates to field of communication technology, more particularly to a kind of data cached collocation method and device.
Background technology
With the rapid development of mobile Internet, in order to meet the needs of users, intensive small cell network is come into being.With The network density and load for intensive small cell network gradually increase, and access device overlapped coverage causes minizone and does Disturb.At present usually using coordinated multipoint transmission (Coordinated Mulitple Points, CoMP) technology, connect using it more The characteristic for entering equipment cooperation solves inter-cell interference.
In the intensive small cell network based on CoMP technologies, request of the user to data can be by under access device Carry, if buffered in advance has mass data at access device, when there are the data needed for user in the data of caching, access device is straight Connect the data sending needed for user to user；Otherwise, it is necessary to which the gateway being in controller on same physical entity first passes through Back haul link downloads the data needed for user from far-end server, and then access device obtains institute by back haul link from gateway again State data and send the data to user, wherein, company of the back haul link between access device and far-end server Connect.
At present, access device buffered in advance data are broadly divided into following three kinds of methods：
First method：Access device is cached according to the hot spot ranking of data in a period of time, by request time The more data buffered in advance of number gets off；
Second method：Access device is according to the request of data probability buffered in advance data generated according to hot spot ranking；
The third method：Access device random cache data.
Three of the above method access device is preset buffer memory, can not be cached according to the real-time requirement of user, cause to access If when in the data of equipment caching not comprising the current desired data of user, it is also necessary to be in controller on same physical entity Gateway first pass through back haul link from far-end server download user needed for data, then access device pass through back haul link again The data are obtained from gateway.In this way, cause the backhaul resources of consumption more.
The content of the invention
The present invention provides a kind of data cached collocation method and device, advance to solve access device in the prior art The data of caching are unsatisfactory for user's real-time requirement, cause consumption backhaul resources it is more the problem of.
Concrete technical scheme provided by the invention is as follows：
In a first aspect, an embodiment of the present invention provides a kind of data cached collocation method, this method is applied to mobile logical Letter system, this method include：
After controller gets the data request information that multiple access devices are sent, determine that having accessed the multiple access sets The total data information aggregate that standby multiple target terminal device requests are downloaded, and be described more in the total data information aggregate The first access device distribution target in a access device treats data cached information aggregate, will be that first access device distributes Target treat that data cached information aggregate is sent to first access device.Wherein, the request of data of any one access device Information includes the information for the data that the current target terminal device request for having accessed the access device is downloaded；It is described sum it is believed that Breath set includes the information for the data that the multiple target terminal device request is downloaded；The target of first access device is waited to delay The data downloaded in deposit data information aggregate comprising the current target terminal device request for having accessed first access device Information, and the number downloaded comprising at least one target terminal device request for currently having accessed at least one second access device According to information.
By the above method, the controller is according to the real-time of the target terminal equipment for accessing first access device Also it is the described first access while demand distributes corresponding data cached (the first data) information for first access device Equipment is assigned with the information of the data (the second data) for the target terminal device request download for accessing other access devices, in this way, First access device can cache first data and second data, so that access first access device Target terminal equipment subsequent request download second data when, without first access device by back haul link again Second data are obtained, so as to reduce backhaul resources consumption.
In a possible design, the controller is first access device in the total data information aggregate Target is distributed when data cached information aggregate, specifically includes following steps：
The data that the controller gets the multiple target terminal equipment requirements for having accessed the multiple access device pass After the lowest threshold of defeated speed, according to the lowest threshold of each target terminal equipment, determine that the target of the target terminal equipment passes Defeated pattern and object transmission resource, wherein, the transmission mode of any one target terminal equipment is expressed as the target terminal equipment At least one access device in the multiple access device of data transport service is provided；Then, reserving back according to system Cheng Ziyuan, is that each access device distribution target in the multiple access device is waited to cache in the total data information aggregate Data message set, wherein, total backhaul resources are not more than the reserved backhaul resources, and total backhaul resources are in each access Equipment caches corresponding target and treats that the corresponding target of data cached information aggregate treats data cached set and each target terminal is set During for using object transmission pattern and object transmission resource transmission data, the sum of backhaul resources of each access device consumption.
By the above method, the controller can pass through the object transmission pattern and mesh of definite each target terminal equipment Transfer resource is marked, to ensure the demand of the message transmission rate of each target terminal equipment, so that the controller can be with standard Total backhaul resources really are calculated, and then target can be distributed according to total backhaul resources and reserved backhaul resources for each access device Treat data cached information aggregate.
In a possible design, the controller can be obtained by following two modes and access the multiple connect Enter the lowest threshold of the message transmission rate of multiple target terminal equipment requirements of equipment：
First way：The controller obtains the multiple access device of access that the multiple access device is sent Multiple target terminal equipment required message transmission rate (i.e. lowest threshold)；
The second way：The controller obtains the message transmission rate of the multiple target terminal equipment requirement of storage Lowest threshold.
For example, the data transfer that each terminal device requires in the multiple target terminal equipment that the controller obtains The lowest threshold of speed is 2 megabits per second Mbps.
By the above method, the controller can obtain the lowest threshold of each target terminal equipment exactly, to protect The demand of the message transmission rate of each target terminal equipment is demonstrate,proved, and then determines the object transmission pattern of each target terminal equipment With object transmission resource.
In a possible design, the controller determines the mesh according to the lowest threshold of each target terminal equipment When marking the object transmission pattern and object transmission resource of terminal device, following steps are specifically included：
After the controller gets the access information that the multiple access device is sent, according to the multiple access device Access information, determine at least one transmission mode of the target terminal equipment；Then, according to the minimum of the target terminal equipment Threshold value, determines the object transmission pattern of the target terminal equipment at least one transmission mode of the target terminal equipment, and Determine the object transmission resource of the target terminal equipment；Wherein, the access information of any one access device includes currently having accessed The target terminal equipment of the access device, and be currently able to access but do not access the terminal device of the access device；It is or described Multiple access devices include at least one first kind access device and at least one second class access device, wherein, any one The access information of a kind of access device includes the current target terminal equipment for having accessed the first kind access device, any one the The access information of two class access devices includes the current target terminal equipment for having accessed the second class access device, and current energy It is enough to access but do not access the terminal device of the second class access device.For example, the access information that access device a is sent can be with Including being currently accessed the terminal device a of the access device a, and it is currently able to access but do not access the end of the access device a End equipment b.
By the above method, the controller can accurately determine the object transmission pattern and mesh of the target terminal equipment Mark transfer resource.
In a possible design, the controller determines the mesh according to the access information of the multiple access device When marking at least one transmission mode of terminal device, following steps are specifically included：
The controller determines the target for including the target terminal equipment in the access information of the multiple access device Access information；And the number of the transmission mode of the target terminal equipment is determined according to the number of the target access information, and then Determine at least one transmission mode of the target terminal equipment；Following two situations can be specifically divided into：
The first situation：When the number of the target access information is 1, the controller determines the target terminal equipment The number of transmission mode is 1, and the transmission mode of the target terminal equipment includes：The access for sending the target access information is set It is standby；For example, working as the access information that only access device a1 is sent includes terminal device a1, that is, include the mesh of the terminal device a1 It is 1 that tag splice, which enters information number, therefore the number of the transmission mode of the terminal device a1 is 1, and the biography of the terminal device a1 Defeated pattern includes sending the access device a1 of the target access information；
The second situation：When the number of the target access information is multiple, the controller determines the target terminal The number of the transmission mode of equipment is multiple, and any one transmission mode of the target terminal equipment includes：Send the mesh Mark any one in multiple access devices of access information or combination；For example, access device b1 and access device b2 transmissions connect Enter information and include terminal device b1, is i.e. the target access information number comprising the terminal device b1 is 2, therefore, the end The number of the transmission mode of end equipment b1 is multiple, and the transmission mode of the terminal device b1 includes：The access device b1, The access device b2, and the access device b1 and access device b2.
By the above method, the controller can accurately determine the target terminal equipment in intensive small cell network At least one transmission mode.
In a possible design, the controller is according to the lowest threshold of each target terminal equipment, in the target The object transmission pattern of the target terminal equipment is determined at least one transmission mode of terminal device, and determines the target terminal During the object transmission resource of equipment, following steps are specifically included：The controller exists according to each target terminal equipment of storage The Signal to Interference plus Noise Ratio of every kind of transmission mode and every kind of transmission resources for transmitting data, determines the target terminal equipment described at least one Each transmission mode and message transmission rate during each transfer resource in transmission mode；And according to the target terminal equipment every Message transmission rate when a transmission mode and each transfer resource, and the lowest threshold of the target terminal equipment, in the mesh The object transmission pattern that the target terminal equipment is determined at least one transmission mode of terminal device is marked, and determines that the target is whole The object transmission resource of end equipment.
By the above method, the controller can ensure the message transmission rate of each target terminal equipment requirement On the premise of demand, the object transmission pattern and object transmission resource of the target terminal equipment are accurately determined.
In a possible design, each target terminal equipment each transmits mould at least one transmission mode Message transmission rate when formula and each transfer resource meets the following formula：
Wherein,Represent terminal device j in transmission mode zj(m) and message transmission rate during transfer resource k；It is terminal device j in transmission mode zj(m) Signal to Interference plus Noise Ratio of data is transmitted with transfer resource k.
By the above method, the controller can accurately determine the target terminal equipment at least one transmission Each transmission mode and message transmission rate during each transfer resource in pattern, can so set ensureing each target terminal On the premise of the demand of standby desired message transmission rate, the object transmission pattern and mesh of the target terminal equipment are accurately determined Mark transfer resource.
In a possible design, any one target terminal equipment is using object transmission pattern and object transmission resource Message transmission rate when transmitting data is not less than the lowest threshold of the message transmission rate of the target terminal equipment requirement.
By the above method, the controller can ensure the message transmission rate of each target terminal equipment requirement On the premise of demand, the object transmission pattern and object transmission resource of the target terminal equipment are accurately determined.
In a possible design, in the multiple target terminal equipment, at least two of same access device is accessed The object transmission resource of target terminal equipment is different.
By the above method, due to access same access device multiple target terminal equipment object transmission resource respectively not Identical, the different target terminal device of the same access device of guarantee access is carrying out data biography using respective object transmission resource When defeated, it will not disturb.
In a possible design, total transmit power of any of the multiple access device access device is not more than The transmit power threshold value of the access device, total transmit power of the access device have connect for the access device for multiple Enter the sum of transmit power of target terminal equipment of the access device；Wherein, the access device has been accessed for any one The transmit power of the target terminal equipment of the access device, is that the access device has accessed the access device described Data biography is carried out to the target terminal equipment for having accessed the access device in the object transmission resource of target terminal equipment Transmit power when defeated.
Since each target terminal equipment each transmits mould at least one transmission mode in the embodiment of the present invention Message transmission rate when formula and each transfer resource is related with Signal to Interference plus Noise Ratio, and Signal to Interference plus Noise Ratio is corresponding with each transmission mode to be connect It is related to enter the transmit power of equipment, by the above method, the controller can accurately determine the target terminal equipment in institute Message transmission rate when each transmission mode and each transfer resource at least one transmission mode is stated, can so ensured On the premise of the demand of the message transmission rate of each target terminal equipment requirement, the mesh of the target terminal equipment is accurately determined Mark transmission mode and object transmission resource.
In a possible design, the controller is according to the reserved backhaul resources of system, in the total data information It is that each access device in the multiple access device distributes target when data cached information aggregate in set, specifically includes Following steps：
After the controller gets the buffer status information that the multiple access device is sent, according to each access device Buffer status information, and reserved backhaul resources are in the multiple access device in the total data set Each access device distribution target treats data cached information aggregate；Wherein, the buffer status information of any one access device includes The residual caching capacity of the access device and data cached set；The target of any one access device treats data cached information Data cached set in set in the buffer status information not comprising the access device, and the target treats data cached letter Breath gathers corresponding target and treats that the capacity needed for data cached set is not more than the residual caching capacity of the access device.
By the above method, the controller can ensure the backhaul resources of each access device consumption without departing from described It is each connecing in the multiple access device according to the real-time condition of each access device on the premise of reserved backhaul resources Enter equipment distribution target and treat data cached information aggregate, wait to delay to ensure that each access device can successfully cache corresponding target The corresponding target of deposit data information aggregate treats data cached set.
In a possible design, the controller is and described according to the buffer status information of each access device Backhaul resources are reserved, are each access device distribution target in the multiple access device in the total data information aggregate When data cached information aggregate, following steps are specifically included：
First, the controller according to the residual caching capacity in the buffer status information of each access device and has cached Data acquisition system, is each access device distribution data message set in the total data set；
Then, the controller is calculated caches the corresponding data set of corresponding data message set in each access device Close and when each target terminal equipment uses object transmission pattern and object transmission resource transmission data, each access device disappears The sum of backhaul resources of consumption, and the sum of backhaul resources that each access device is consumed are as current total backhaul resources；
Finally, the controller by the current total backhaul resources compared with the reserved backhaul resources, according to not Same comparative result can distribute target for each access device by following two situations and treat data cached information aggregate：
The first situation：If current total backhaul resources are not more than the reserved backhaul resources, the controller will Data message set for the distribution of each access device treats data cached information aggregate as the target of corresponding access device；
The second situation：If current total backhaul resources are more than the reserved backhaul resources, the controller is again Data message set is distributed for each access device, including：The controller sends increase spatial cache to each access device Request, and receive the increase spatial cache response that each access device returns；The controller is according to the increasing of each access device Add spatial cache to respond, determine the current residual buffer memory capacity of each access device；The controller is according to each access device Current residual buffer memory capacity and data cached set, it is each access device point in the total data information aggregate to continue With data message set；
The controller continue to calculate each access device cache the corresponding data acquisition system of corresponding data message set, And when each target terminal equipment uses object transmission pattern and object transmission resource transmission data, each access device consumption The sum of backhaul resources, and the sum of backhaul resources that each access device is consumed are as current total backhaul resources, if described current Total backhaul resources are not more than the reserved backhaul resources, then the controller believes this data for the distribution of each access device Breath set treats data cached information aggregate as the target of corresponding access device；Otherwise, it is every again that the controller, which continues, A access device distributes data message set, until determining what is calculated according to the data message set for the distribution of each access device When current total backhaul resources are not more than the reserved backhaul resources, number of the controller by this for the distribution of each access device According to information aggregate data cached information aggregate is treated as the target of corresponding access device.
By the above method, the controller passes through the residual caching capacity of each access device and data cached set To be each, access device first distributes data message set, and calculates corresponding current total backhaul resources, until this calculated When current total backhaul resources are not more than the reserved backhaul resources, this data message set is waited to delay as corresponding target Deposit data information aggregate, so can meet the reserved backhaul resources in the backhaul resources for ensureing each access device consumption Under the premise of, each access device is successfully cached corresponding target and treat that the corresponding target of data cached information aggregate is waited to cache Data acquisition system.
In a possible design, total backhaul resources meet the following formula：
Wherein, I is the total data set that at least one premises equipment requests are downloaded；I is included in I；M is at least one end The set of end equipment；M is included in M；N is multiple access device set, and n is included in N；zj(m) transmission for being terminal device j Pattern, j are included in M；Z (m) is the transmission mode set of at least one terminal device；N is in the transmission mode of terminal device j Access device；ωn,iFor 0,1 parameter, ωn,i=1 expression access device n is cached with data i, ωn,i=0 represents access device n There is no data cached i；am,iFor 0,1 parameter, am,i=1 represents terminal device m request downloading datas i；For 0,1 variable,Represent transmission mode zj(m) selected by terminal device j；ln,iFor 0,1 variable, ln,i=1 represents that access device n is needed Download and data cached i, ln,i=0 expression access device n need not be downloaded and data cached i；MnSet to have access to access The terminal device set of standby n.
By the above method, the controller can be according to each access device and the actual feelings of each target terminal equipment Condition calculates total backhaul resources exactly.
In a possible design, the controller can be sent by following two modes to each access device to be increased Spatial cache is added to ask：
First way：Minimum of the controller according to needed for the reserved backhaul resources determine each access device is delayed Capacity is deposited, and sends the increase spatial cache comprising the minimal cache capacity needed for the access device to each access device and asks Ask；
The second way：The controller determines the data message set pair that the controller is the distribution of each access device The capacity difference of the capacity needed for data acquisition system answered and the current residual buffer memory capacity of corresponding access device, and connect to each Enter equipment and send the increase spatial cache request comprising the access device capacity difference.
By the above method, the controller can be asked by sending increase spatial cache to each access device, with The access device is set correspondingly to perform increase spatial cache according to required minimal cache capacity or the capacity difference.
In a possible design, the controller sends increase spatial cache request to each access device and can take Band sets request (INITIAL CONTEXT SETUP in the controller to the initial context that each access device is sent REQUEST in).
In a possible design, the controller is according to the increasing of any of the multiple access device access device Spatial cache is added to respond, when determining the current residual buffer memory capacity of the access device, the controller is by the access device The response of increase spatial cache in the current residual buffer memory capacity of the access device that includes be determined as the access device Current residual buffer memory capacity.
By the above method, the controller can accurately determine the current residual buffer memory capacity of each access device, So as to continue according to the current residual buffer memory capacity of each access device and data cached set, continue described total it is believed that It is each access device distribution data message set in breath set, to ensure to wait to cache into distribution of work target for each access device Data message set, makes each access device successfully cache corresponding target and treats that the corresponding target of data cached information aggregate is waited to delay Deposit data set.
In a possible design, after the controller receives the increase spatial cache response of each access device, When the controller is determined in the increase spatial cache response in any one access device comprising increase spatial cache failed message When, current residual buffer memory capacity and the reserved backhaul resources of the controller according to the access device, and accessed The priority of the request of the target terminal device request download of the access device, the low target of interrupt priority level are whole The data download request of end equipment, then reacquires the data request information of multiple access devices, continues to be each to connect again Enter equipment distribution and treat data cached information aggregate.For example, terminal device 1 asks downloading data 1, while terminal to access device 1 Equipment 2 also downloads the data 1 to the access device 1 request, if the data 1 in the access device 1 can only provide To one of them in the terminal device 1 and the terminal device 2, if the priority ratio terminal device 2 of terminal device 1 at this time Priority is low, then the controller interrupts request of the terminal device 1 to the data 1, only ensures the access device 1 The data 1 are provided to the terminal device 2, so described access device 1 just without going to delay again for the terminal device 1 again Deposit the data 1, so as to ensure that the current residual buffer memory capacity of the access device 1 is not occupied, enable the controller into Work(distributes target for the access device 1 and treats data cached information aggregate.
In a possible design, the target distributed for other access devices is treated data cached information by the controller Set is sent to corresponding access device, wherein, other described access devices are that described first is removed in the multiple access device Access device beyond access device；And the controller passes the object transmission pattern of each target terminal equipment and target Defeated resource is sent to the access device in the object transmission pattern of the target terminal equipment.
Pass through the above method, it is ensured that other described access devices treat data cached information aggregate according to corresponding target Success caches the target and treats that the corresponding target of data cached information aggregate treats data cached set；And ensure that each target is whole End equipment can avoid disturbing, and reduce in the object transmission pattern and the object transmission transmitted over resources data Backhaul resources consume.
In a possible design, the target distributed for each access device is being treated data cached letter by the controller Breath set is sent to after corresponding access device, receives the network that the 3rd access device in the multiple access device returns Connection is successfully established message, and the target that the controller initiates to send the 3rd access device to the 3rd access device is treated The corresponding target of data cached information aggregate treats the flow of data cached set；Or receive in the multiple access device the Failed message is established in the network connection that four access devices return, and the controller initiates the network for the 4th access device Connection Release flow.Wherein, the 3rd access device and the 4th access device are any in the multiple access device A access device.
By the above method, the controller can be successfully established message according to the network connection received or network connects Connect and establish the corresponding flow of failed message initiation, so that the corresponding flow that corresponding access device is initiated according to the controller Perform corresponding operation.
Second aspect, the embodiment of the present invention additionally provide a kind of data cached collocation method, and this method is applied to movement Communication system, this method include：
After first access device sends data request information to controller, the controller that the controller is sent is received Target for first access device distribution treats data cached information aggregate；Wherein, the data request information includes current The information of the data of the target terminal device request download of first access device is accessed；The target treats data cached letter The information for the data downloaded in breath set comprising the current target terminal device request for having accessed first access device, and The information for the data downloaded comprising at least one target terminal device request for currently having accessed at least one second access device.
By the above method, first access device can cache the current target for having accessed first access device The data (the first data) and the current at least one mesh for having accessed at least one second access device that premises equipment requests are downloaded The data (the second data) that premises equipment requests are downloaded are marked, so that after the target terminal equipment of access first access device When second data are downloaded in continuous request, second number is reacquired by back haul link without first access device According to so as to reduce backhaul resources consumption.
In a possible design, first access device sends access information to the controller, wherein, it is described Access information includes currently having accessed the target terminal equipment of first access device, and is currently able to access but do not access The terminal device of first access device；Or the access information includes the current mesh for having accessed first access device Mark terminal device.
By the above method, first access device can be by sending access information, so that institute to the controller Controller is stated according to the access information and the access information of other access devices, it is true exactly in intensive small cell network At least one transmission mode of the fixed target terminal equipment.
In a possible design, first access device sends buffer status information to the controller, described The residual caching capacity of buffer status information including first access device and data cached set.
By the above method, first access device can by the controller send buffer status information, with Make the controller according to the buffer status information and the buffer status information of other access devices, for the described first access Equipment treats data cached information aggregate into distribution of work target.
In a possible design, first access device sends access information, data request information to controller And buffer status information can carry the INITIAL UE sent in first access device to the controller In MESSAGE.
In a possible design, the target of first access device is treated not including institute in data cached information aggregate The data cached set in the buffer status information of the first access device is stated, and the target treats that data cached information aggregate corresponds to Target treat that capacity needed for data cached set is not more than the residual caching capacity of first access device.
By the above method, first access device can successfully cache rational target according to own actual situation and treat Data cached set.
In a possible design, first access device is in the controller that the reception controller is sent Before the target of the first access device distribution treats data cached information aggregate, the increase caching that the controller is sent is received Ask in space；And according to the increase spatial cache request, perform increase own cache space；When increase own cache space into During work(, first access device determines current residual buffer memory capacity, is sent to the controller remaining slow comprising current cache Deposit the increase spatial cache response of capacity；Or when increasing the failure of own cache space, first access device is to described Controller sends the increase spatial cache response comprising increase spatial cache failed message.
By the above method, first access device can make the controller by increasing spatial cache response Corresponding reaction, i.e., described controller can determine the current residual buffer memory capacity of first access device, so that according to institute State current residual buffer memory capacity and continue as the first access device distribution target data message set to be delayed；Or the control Device can interrupt the low target terminal of priority for having accessed first access device according to increase spatial cache failed message The data download request of equipment, then reacquires the data request information of multiple access devices, continues to be described first again Data cached information aggregate is treated in access device distribution.
In a possible design, first access device is asked according to the increase spatial cache, performs increase During own cache space, according to the minimal cache needed for first access device included in the increase spatial cache request Capacity or capacity difference, delete the data being locally stored.
By the above method, it is empty that first access device can increase caching by deleting the data being locally stored Between, and current residual buffer memory capacity is redefined, and then successfully distribute target for first access device and treat data cached letter Breath set.
In a possible design, it is whole that first access device receives at least one target that the controller is sent The object transmission pattern and object transmission resource of end equipment, wherein, the object transmission mould of at least one target terminal equipment First access device is included in formula.
By the above method, object transmission pattern includes at least one target terminal equipment of first access device, Can be in corresponding object transmission pattern and object transmission transmitted over resources data, to ensure before backhaul resources consumption is reduced Put, avoid interfering.
In a possible design, first access device is receiving the controller of the controller transmission After the target distributed for first access device treats data cached set, with having accessed first access device at least One target terminal equipment establishes network connection；When first access device and at least one target terminal device network When connection is successfully established, first access device sends network connection to the controller and is successfully established message；When described When one access device is connected foundation failure with least one target terminal device network, first access device is to described Controller sends network connection and establishes failed message.
By the above method, first access device sends the network connection to the controller and is successfully established message Or failed message is established in the network connection, it can be that the controller initiates corresponding follow-up process, i.e., be built in network connection When standing successfully, the controller is initiated to treat to the target of first access device transmission the 3rd access device data cached The corresponding target of information aggregate treats the flow of data cached set, ensures being smoothed out for data transmission service；In network connection During failure, the controller initiates the network connection release flow for first access device, avoids wasting space resource.
The third aspect, the embodiment of the present invention additionally provide a kind of controller, which, which has, realizes above method example The function of middle controller behavior.The function can also be performed corresponding software and be realized by hardware realization by hardware. The hardware or software include the one or more and corresponding module of above-mentioned function.
In a possible design, the structure of the controller includes receiving unit, processing unit and transmitting element, These units can perform the corresponding function in above method example, referring specifically to the detailed description in method example, herein not Repeat.
In a kind of possible design, the structure of the controller includes transceiver, processor, bus and storage Device, the transceiver are used to carry out communication interaction with the other equipment in mobile communication system, and the processor is configured as propping up Hold the controller and perform corresponding function in the above method.The memory is coupled with the processor, it preserves the control The necessary programmed instruction of device processed and data.
Fourth aspect, the embodiment of the present invention additionally provide a kind of first access device, which, which has, realizes The function of first access device behavior in above method example.The function can also pass through hardware by hardware realization Corresponding software is performed to realize.The hardware or software include the one or more and corresponding module of above-mentioned function.
In a possible design, the structure of first access device includes transmitting element, receiving unit and place Unit is managed, these units can perform the corresponding function in above method example, referring specifically to the detailed description in method example, Do not repeat herein.
In a kind of possible design, the structure of first access device include transceiver, processor, bus and Memory, the transceiver are used to carry out communication interaction with the other equipment in mobile communication system, and the processor is configured To support the core network control surface network element to perform corresponding function in the above method.The memory and the processor coupling Close, it preserves the necessary programmed instruction of first access device and data.
5th aspect, the embodiment of the present invention additionally provide a kind of mobile communication system, which includes control Device, multiple terminal devices and multiple access devices, wherein the multiple access device includes the first access device and other accesses Equipment, other described access devices include at least one second access device.
Using data cached collocation method provided by the invention, controller receives the request of data of the first access device Can be that first access device distribution target treats data cached information aggregate after information, wherein, the target number to be cached Include the information for accessing the first data of the target terminal device request download of first access device according to information aggregate, with And access the letter of the second data of the target terminal device request download of other access devices (at least one second access device) Breath.Due in a period of time, accessing the first data of first object premises equipment requests of first access device, access Second the second data of target terminal device request of other access devices, then the follow-up first object terminal device or Other access the target terminal equipment of first access devices to first access device ask the probability of the second data compared with Greatly.By the above method, the controller is in the real-time requirement according to the target terminal equipment for accessing first access device While distributing corresponding data cached information for first access device, also access is assigned with for first access device The information for the data that the target terminal device request of other access devices is downloaded, in this way, first access device can cache First data and second data, so that under the target terminal equipment subsequent request of access first access device When carrying second data, second data are reacquired by back haul link without first access device, so as to drop Low backhaul resources consumption.
Brief description of the drawings
Fig. 1 is a kind of mobile communication system configuration diagram provided in an embodiment of the present invention；
Fig. 2 is a kind of flow chart of data cached collocation method provided in an embodiment of the present invention；
Fig. 3 is a kind of example flow diagram of data cached collocation method provided in an embodiment of the present invention；
Fig. 4 is a kind of structure diagram of controller provided in an embodiment of the present invention；
Fig. 5 is a kind of structure diagram of first access device provided in an embodiment of the present invention；
Fig. 6 is a kind of structure chart of controller provided in an embodiment of the present invention；
Fig. 7 is a kind of structure chart of first access device provided in an embodiment of the present invention.
Embodiment
In order to make the object, technical solutions and advantages of the present invention clearer, the present invention is made below in conjunction with attached drawing into One step it is described in detail, it is clear that described embodiment only part of the embodiment of the present invention, rather than whole implementation Example.Based on the embodiments of the present invention, those of ordinary skill in the art are obtained without making creative work All other embodiment, belongs to the scope of protection of the invention.
The embodiment of the present invention provides a kind of data cached collocation method and device, is set to solve to access in the prior art The problem of standby data cached in advance are unsatisfactory for user's real-time requirement, cause the backhaul resources of consumption more.Wherein, institute of the present invention State method and apparatus and be based on same inventive concept, since the principle that method and device solves the problems, such as is similar, apparatus and method Implementation can be with cross-reference, overlaps will not be repeated.
, can after controller receives the data request information of the first access device in the technical solution of the embodiment of the present invention Think that the first access device distribution target treats data cached information aggregate, wherein, the target treats data cached information collection Conjunction includes the information of the first data of the target terminal device request download for accessing first access device, and accesses it The information for the second data that the target terminal device request of his access device (at least one second access device) is downloaded.Due to In one period, access the first data of first object premises equipment requests of first access device, access it is described other Second the second data of target terminal device request of access device, then the follow-up first object terminal device or other accesses The target terminal equipment of first access device asks the probability of the second data larger to first access device.By upper Method is stated, the controller is being described first according to the real-time requirement for the target terminal equipment for accessing first access device While access device distribution corresponding data cached information, also it is assigned with for first access device and accesses other accesses and set The information for the data that standby target terminal device request is downloaded, in this way, first access device can cache first number According to second data so that the target terminal equipment subsequent request of access first access device downloads described second During data, second data are reacquired by back haul link without first access device, so as to reduce backhaul resources Consumption.
Hereinafter, the part term in the application is explained, in order to skilled artisan understands that.
1), the present embodiments relate to controller, be responsible for multiple access devices, include but not limited to：Moving tube Manage entity (Mobile Management Entity, MME)/gateway (Serving Gate Way, SGW) etc..
2), the present embodiments relate to access device, also referred to as base station (Base Station, BS), be for terminal The equipment that equipment provides wirelessly access, includes but not limited to：It is evolved node B (evolved Node B, eNB), wireless Network controller (radio network controller, RNC), node B (Node B, NB), base station controller (Base Station Controller, BSC), base transceiver station (Base Transceiver Station, BTS), Home eNodeB (example Such as, Home evolved NodeB, or Home Node B, HNB), Base Band Unit (BaseBand Unit, BBU), access point (Access Point, AP), Microcell access point (Small-cell Access Point, SAP), wireless access point (Wireless Fidelity Access Point, WiFi AP), worldwide interoperability for microwave accesses (Worldwide Interoperability for Microwave Access, WiMAX) BS etc..
3), terminal device of the present invention, also referred to as user equipment (User Equipment, UE), be it is a kind of to The equipment that user provides data connectivity, for example, portable equipment, mobile unit with wireless connecting function, wearable setting Standby, computing device, mobile station (Mobile Station, MS) are connected to other processing equipments of radio modem etc., And the mobile terminal to communicate through accessing net with one or more core nets.
4), transfer resource of the present invention, is running time-frequency resource, wherein the list of transfer resource in embodiments of the present invention Position is resource block (Resource Block, RB).
5), "and/or", describes the incidence relation of affiliated partner, and expression may have three kinds of relations, for example, A and/or B, It can represent：Individualism A, while there are A and B, these three situations of individualism B.Character "/" typicallys represent forward-backward correlation pair A kind of as if relation of "or".
6), in the description of the present application, the vocabulary such as " first ", " second " is only used for distinguishing the purpose of description, and cannot manage Solve to indicate or implying relative importance, can not be interpreted as indicating or hint order.
In order to more clearly from describe the technical solution of the embodiment of the present invention, below in conjunction with the accompanying drawings, to the embodiment of the present invention The data cached collocation method and device provided is described in detail.
Fig. 1 shows a kind of possible mobile communication that data cached collocation method provided in an embodiment of the present invention is applicable in System architecture, the mobile communication system framework include：Controller, multiple access devices (the first access device and in such as figure Two access devices) and multiple terminal devices (terminal device A, terminal device B and terminal device C in such as figure).Wherein,
The terminal device, for accessing the access device in the multiple access device, and is having data to download demand When, data download request is sent to the access device accessed, the data downloaded in the data download request comprising request Information.For example, the terminal device A accesses first access device, and downloading data is asked to first access device； The terminal device B accesses first access device and/or second access device, and to first access device And/or the second access device request downloading data；The terminal device C accesses second access device, and to described Second access device asks downloading data.
The access device, the data download request of the terminal device for receiving access, and carried for the terminal device For data download service：The request of data of the information for the data downloaded comprising the premises equipment requests is sent to the controller Information, and receive the cache policy that the controller issues and (treat data cached letter for the target of access device distribution Breath set)；And the target is obtained from far-end server by back haul link and treats the corresponding target of data cached information aggregate Treat data cached set, and give the data sending needed for the terminal device of access to the terminal device.
The controller, for obtaining the request of data of the transmission of the multiple access device in the mobile communication system Information, after the request of data of the multiple access device is got, distributes target for each access device and treats data cached letter Breath set.There are part access devices in the multiple access device, wherein, any one access in the part access devices Not only downloaded in the data cached information aggregate of object tape of equipment comprising the current premises equipment requests for having accessed the access device Data information, also comprising access other access devices premises equipment requests download data information.
The mobile communication system framework further includes far-end server, and the far-end server is set for providing the terminal The data that standby request is downloaded.
In the mobile communication system, the controller is real-time the terminal device according to the first access device of access While demand distributes the information of corresponding first data for first access device, also distributed for first access device The information for the second data that the premises equipment requests of other access devices are downloaded is accessed, in this way, first access device can To cache first data and second data, so that the terminal device subsequent request of access first access device When downloading second data, second data are reacquired by back haul link without first access device, so that Reduce backhaul resources consumption.
Wherein, controller described in the data transmission system framework shown in Fig. 1, the multiple access device, described Communication interaction is carried out by corresponding interface between multiple terminal devices.
Based on above example, a kind of data cached collocation method provided in an embodiment of the present invention, suitable for such as Fig. 1 institutes The mobile communication system shown.As shown in fig.2, the idiographic flow of this method includes：
Step 201：First access device sends data request information to controller, wherein, the data request information bag Include the information for the data that the current target terminal device request for having accessed first access device is downloaded.
Wherein, the data request information that first access device is sent can be carried in first access device to institute In the initial user message (INITIAL UE MESSAGE) for stating controller transmission；In addition, the INITIAL UE MESSAGE Signaling connection mark (Identification, ID), the end of first access device and corresponding terminal equipment can also be carried End equipment address, network attached storage (Network Attached Storage, NAS) signaling etc..
Optionally, before first access device performs step 201, the method is further comprising the steps of：
A1, the multiple terminal devices for having data to download demand become active state from idle condition, wherein, when any one end When end equipment needs downloading data, the terminal device becomes active state by idle condition；
A2, the multiple terminal device access multiple access devices in a manner of random access, at this time the multiple access Equipment becomes active state from idle condition.
Wherein, the idle condition refers to resting state, and the active state refers to working status；
Optionally, since the multiple terminal device is likely to be at the multiple access device overlapped coverage part, One of access device coverage may also be in, therefore the multiple terminal device accesses institute in a manner of random access The situation for stating multiple access devices may be different, for example, in the mobile communication system shown in Fig. 1, since terminal device A is only in First access device coverage, terminal device C are only in the second access device coverage, and therefore, terminal device A is only accessed First access device, terminal device C only access second access device；And terminal device B is in the described first access Equipment and the second access device overlapped coverage part, therefore, terminal device B can only access first access and set It is standby, either only access second access device or access first access device and second access device at the same time.
A3, the multiple terminal device send data download request, any one terminal to the corresponding access device of access The information for the data downloaded in the data download request of equipment comprising the premises equipment requests.Wherein, each terminal device hair The data download request sent can carry the service request (Service sent in the terminal device to corresponding access device Request in).
Step 202：The controller obtains the data request information that multiple access devices are sent.
Wherein, the multiple access device includes first access device and at least one second access device.
The data request information that at least one second access device is sent can be carried described at least one second In the INITIAL UE MESSAGE that access device is sent to the controller；In addition, the INITIAL UE MESSAGE are also Signaling connection ID, terminal device address, the NAS letter of at least one second access device and corresponding terminal equipment can be carried Order etc..
Step 203：The controller determines to have accessed described more according to the data request information of the multiple access device The total data information aggregate that multiple target terminal device requests of a access device are downloaded, the total data information aggregate include institute State the information for the data that multiple target terminal device requests are downloaded.
Optionally, the controller determines to have accessed described more according to the data request information of the multiple access device The total data information aggregate that multiple target terminal device requests of a access device are downloaded, specific method can be：
The controller is worked as according to what the data request information of each access device in the multiple access device included The information for the data that the preceding target terminal device request for having accessed the access device is downloaded, determines that the target terminal equipment please Seek the total data information aggregate of download.
Step 204：The controller is first connecing in the multiple access device in the total data information aggregate Enter equipment distribution target and treat data cached information aggregate, wherein, the target of first access device treats data cached information collection The data downloaded in conjunction comprising the current target terminal device request for having accessed first access device, and comprising currently Access the data that at least one target terminal device request of at least one second access device is downloaded.
Optionally, the controller is that the first access device distribution target is waited to delay in the total data information aggregate Deposit data information aggregate, including following three steps：
The data that b1, the controller obtain the multiple target terminal equipment requirements for having accessed the multiple access device pass The lowest threshold of defeated speed.
Optionally, the controller obtains the number for the multiple target terminal equipment requirements for having accessed the multiple access device According to the lowest threshold of transmission rate, including following two modes：
First way：The controller obtains the multiple access device of access that the multiple access device is sent Multiple target terminal equipment required message transmission rate (i.e. lowest threshold)
The second way：The controller obtains the message transmission rate of the multiple target terminal equipment requirement of storage Lowest threshold.
For example, the data transfer that each terminal device requires in the multiple target terminal equipment that the controller obtains The lowest threshold of speed is 2 megabits per second Mbps.
By the above method, the controller can obtain the lowest threshold of each target terminal equipment exactly, to protect The demand of the message transmission rate of each target terminal equipment is demonstrate,proved, and then determines the object transmission pattern of each target terminal equipment With object transmission resource.
B2, the controller determine the target of the target terminal equipment according to the lowest threshold of each target terminal equipment Transmission mode and object transmission resource, wherein, the transmission mode of any one target terminal equipment is expressed as the target terminal and sets At least one access device in the standby the multiple access device that data transport service is provided.
B3, the controller are the multiple in the total data information aggregate according to the reserved backhaul resources of system Each access device distribution target in access device treats data cached information aggregate, wherein, total backhaul resources are no more than described Reserved backhaul resources, total backhaul resources are to cache corresponding target in each access device to treat data cached information aggregate pair The target answered treats data cached set and each target terminal equipment uses object transmission pattern and object transmission resource transmission number According to when, the sum of backhaul resources of each access device consumption.
Optionally, in above-mentioned steps b2, for the controller according to the lowest threshold of each target terminal equipment, determining should The object transmission pattern and object transmission resource of target terminal equipment, specific method can be：
The controller obtains the access information that the multiple access device is sent, wherein, any one access device connects Entering information includes currently having accessed the target terminal equipment of the access device, and is currently able to access but do not access the access to set Standby terminal device；Or the multiple access device includes at least one first kind access device and at least one second class connects Enter equipment, wherein, the access information of any one first kind access device includes currently having accessed the first kind access device Target terminal equipment, the access information of any one the second class access device include currently having accessed the second class access device Target terminal equipment, and be currently able to access but do not access the terminal device of the second class access device；Wherein, Mei Gejie The INITIAL UE sent in the access device to the controller can be carried by entering the access information of equipment transmission In MESSAGE；For example, the access information that the first access device as shown in Figure 1 is sent can include being currently accessed described first The terminal device A of access device, and be currently able to access but do not access the terminal device B of first access device.
The controller determines at least one of the target terminal equipment according to the access information of the multiple access device Transmission mode；
The controller is according to the lowest threshold of the target terminal equipment, at least one transmission of the target terminal equipment The object transmission pattern of the target terminal equipment is determined in pattern, and determines the object transmission resource of the target terminal equipment.
By the above method, the controller can accurately determine the object transmission pattern and mesh of the target terminal equipment Mark transfer resource.
Optionally, the controller determines the target terminal equipment according to the access information of the multiple access device At least one transmission mode, specific method can be：
The controller determines the target for including the target terminal equipment in the access information of the multiple access device Access information；
When the number of the target access information is 1, the controller determines the transmission mode of the target terminal equipment Number be 1, and the transmission mode of the target terminal equipment includes：Send the access device of the target access information.For example, In mobile communication system shown in Fig. 1, the access information that only described first access device is sent includes terminal device A, that is, wraps Target access information number containing the terminal device A is 1, therefore the number of the transmission mode of the terminal device A is 1, and The transmission mode of the terminal device A includes sending first access device of the target access information；Similarly, the end The number of the transmission mode of end equipment C is 1, and the transmission mode of the terminal device C includes sending the target access information Second access device；
When the number of the target access information is multiple, the controller determines the transmission mould of the target terminal equipment The number of formula is multiple, and any one transmission mode of the target terminal equipment includes：Send the target access information Any one in multiple access devices or combination.For example, in mobile communication system shown in Fig. 1, first access device and The access information that second access device is sent includes terminal device B, i.e., the target access letter comprising the terminal device B It is 2 to cease number, and therefore, the number of the transmission mode of the terminal device B is multiple, and the transmission mode of the terminal device B Including：First access device, second access device, and first access device and second access are set It is standby.
The transmission mode of described terminal device A, B, C can be as shown in table 1：
1 transmission mode of table
Wherein, "×" represents that corresponding transmission mode, i.e. terminal device is not present in terminal device A and terminal device B in table 1 A and terminal device B only exists a transmission mode (i.e. transmission mode number is 1).
By the above method, the controller can accurately determine the target terminal equipment in intensive small cell network At least one transmission mode.
Optionally, the controller is according to the lowest threshold of each target terminal equipment, in the target terminal equipment extremely The object transmission pattern of the target terminal equipment is determined in a few transmission mode, and determines that the target of the target terminal equipment passes Defeated resource, specifically includes following steps：
C1, the controller are passed according to each target terminal equipment of storage in each transmission mode and each transfer resource The Signal to Interference plus Noise Ratio of transmission of data, determines the target terminal equipment each transmission mode and each at least one transmission mode Message transmission rate during transfer resource.
Wherein, optionally, the Signal to Interference plus Noise Ratio of above-mentioned storage is by the transmission work(of the corresponding access device of each transmission mode What rate and jamming power from neighbouring other access devices determined, and the access of any of the multiple access device is set Standby total transmit power is not more than the transmit power threshold value of the access device, and total transmit power of the access device is described Access device is for the sum of multiple transmit powers of target terminal equipment for having accessed the access device；The access device pin To the transmit power of any one the target terminal equipment for having accessed the access device, accessed for the access device described To the target terminal for having accessed the access device in the object transmission resource of the target terminal equipment of the access device Transmit power when equipment carries out data transmission.
C2, the controller are passed according to data of the target terminal equipment in every kind of transmission mode and every kind of transfer resource Defeated speed, and the lowest threshold of the target terminal equipment, determine at least one transmission mode of the target terminal equipment The object transmission pattern of the target terminal equipment, and determine the object transmission resource of the target terminal equipment.
Optionally, in above-mentioned steps c1, each target terminal equipment each passes at least one transmission mode Message transmission rate coincidence formula one when defeated pattern and each transfer resource：
Wherein,Represent terminal device j in transmission mode zj(m) and message transmission rate during transfer resource k；It is terminal device j in transmission mode zj(m) Signal to Interference plus Noise Ratio of data is transmitted with transfer resource k.
By the above method, the controller can ensure the message transmission rate of each target terminal equipment requirement On the premise of demand, the object transmission pattern and object transmission resource of the target terminal equipment are accurately determined.
For example, with reference to Fig. 1, it is assumed that the channel quality of each transfer resource is identical, and the definite target terminal equipment is in institute Message transmission rate when stating each transmission mode and each transfer resource at least one transmission mode can be as shown in table 2：
2 message transmission rate of table
Wherein, "×" represents that corresponding situation is not present in table 2.
Optionally, since any one target terminal equipment is using object transmission pattern and object transmission resource transmission data When message transmission rate not less than the message transmission rate of the target terminal equipment requirement lowest threshold, it is and the multiple In target terminal equipment, the object transmission resource for accessing at least two target terminal equipment of same access device is different. Therefore, with reference to table 2, and the lowest threshold of hypothesis either objective terminal device is the channel matter of 2Mbps and each transfer resource Measure it is identical, in above-mentioned steps c2, the controller at least one transmission mode of each target terminal equipment determine should The object transmission pattern of target terminal equipment, and determine the object transmission resource of the target terminal equipment, specific determination process can Think：
As shown in Table 2, the terminal device A can only carry out data transmission under first access device, therefore the end The object transmission pattern of end equipment A is first access device；And the terminal device A is in first access device, one Message transmission rate during a transfer resource is less than the lowest threshold 2Mbps of the terminal device A message transmission rates, therefore in order to Meet the lowest threshold of the message transmission rate of the terminal device A requirements, determine the object transmission resource of the terminal device A Number be not less than 2, such as the definite object transmission resource can be transfer resource 1 and transfer resource 2；
Similarly, it may be determined that the object transmission pattern of the terminal device C is the access device C, the terminal device C The number of object transmission resource be not less than 2, the access device accessed due to the terminal device A and the terminal device C is not Together, therefore, the object transmission resource of the terminal device A and the terminal device C can be identical, such as the terminal device C Object transmission resource can also be transfer resource 1 and transfer resource 2；
As shown in Table 2, the terminal device B only has first access device and second access device at the same time When, the message transmission rate of the terminal device B is just not less than the minimum threshold of the desired message transmission rates of the terminal device B Value, it is thus determined that the object transmission pattern of the terminal device B is first access device and second access device；And And can determine that the number of the object transmission resource of the terminal device B can be 1, due to accessing first access device The object transmission resource of the terminal device A and the terminal device B are different, and access second access device The object transmission resource of the terminal device B and the terminal device C are different, therefore the target of the terminal device B passes Defeated resource can be determined as transfer resource 3.
Optionally, in above-mentioned steps b3, the controller according to the reserved backhaul resources of system, in the sum it is believed that Breath set in be in the multiple access device each access device distribution target treat data cached information aggregate, specific method Can be：
The controller obtains the buffer status information that the multiple access device is sent, wherein, any one access device Buffer status information including the access device residual caching capacity and data cached set；Wherein, any one is accessed The buffer status information that equipment is sent can carry the INITIAL UE sent in the access device to the controller In MESSAGE；
The controller is according to the buffer status information of each access device, and the reserved backhaul resources, described It is that each access device distribution target treats data cached information aggregate in total data set；Wherein, the mesh of any one access device Mark treats the data cached set in the buffer status information not comprising the access device in data cached information aggregate, and should Target treats that the corresponding target of data cached information aggregate treats that the capacity needed for data cached set is not more than the access device Residual caching capacity.
Optionally, the controller is according to the buffer status information of each access device, and the reserved backhaul resources, The target for each access device distribution being determined as in the total data information aggregate in the multiple access device is waited to cache Data message set, specific method can be：
The controller is according to the residual caching capacity in the buffer status information of each access device and data cached Set, is determined as the data message set of each access device distribution in the total data set；
The controller is calculated caches the corresponding data acquisition system of corresponding data message set and every in each access device When a target terminal equipment uses object transmission pattern and object transmission resource transmission data, the backhaul of each access device consumption The sum of resource, and the sum of backhaul resources that each access device is consumed are as current total backhaul resources；
If current total backhaul resources are not more than the reserved backhaul resources, the controller will be that each access is set The data message set that back-up is matched somebody with somebody treats data cached information aggregate as the target of corresponding access device；
If current total backhaul resources are more than the reserved backhaul resources, the controller is redefined as each connect Enter the data message set of equipment distribution, including：The controller sends increase spatial cache request to each access device, and Receive the increase spatial cache response that each access device returns；The controller caches empty according to the increase of each access device Between respond, determine the current residual buffer memory capacity of each access device；The controller is according to the current surplus of each access device Remaining buffer memory capacity and data cached set, continue to be determined as the data of each access device distribution in the total data set Information aggregate；
The controller continue to calculate each access device cache the corresponding data acquisition system of corresponding data message set, And when each target terminal equipment uses object transmission pattern and object transmission resource transmission data, each access device consumption The sum of backhaul resources, and the sum of backhaul resources that each access device is consumed are as current total backhaul resources, if described current Total backhaul resources are not more than the reserved backhaul resources, then the controller believes this data for the distribution of each access device Breath set treats data cached information aggregate as the target of corresponding access device；Otherwise, it is each again that the controller, which continues, The data message set of access device distribution, until determining what is calculated according to the data message set for the distribution of each access device When current total backhaul resources are not more than the reserved backhaul resources, number of the controller by this for the distribution of each access device According to information aggregate data cached information aggregate is treated as the target of corresponding access device.
Wherein, the controller sends increase spatial cache request to each access device and can carry in the controller The initial context sent to each access device is set in request (INITIAL CONTEXT SETUP REQUEST).
Optionally, in the above-mentioned methods, total backhaul resources meet the following formula two：
F=F1+F2-F3Formula two
Wherein, F1It is number of the controller according to each target terminal device request download in the target terminal equipment According to information, and the access device of the target terminal equipment data cached set is accessed in the multiple access device, Determine the backhaul resources that the multiple access device is consumed, F1Coincidence formula three：
F2The data message set distributed for the controller according to each access device, determines the multiple access device Download the backhaul resources that the data in corresponding data acquisition system are consumed, F2Coincidence formula four：
F3It is described when determining the target terminal equipment to corresponding access device repeat request data for the controller The backhaul resources of multiple access device repeat consumptions, F3Coincidence formula five：
Wherein, in above-mentioned formula three, formula four, formula five, I is the total data that at least one premises equipment requests are downloaded Set；I is included in I；M is the set of at least one terminal device；M is included in M；N is multiple access device set, n bags It is contained in N；zj(m) transmission mode for being terminal device j, j are included in M；Z (m) is the transmission mould of at least one terminal device Formula set；N is the access device in the transmission mode of terminal device j；ωn,iFor 0,1 parameter, ωn,i=1 represents access device n It is cached with data i, ωn,i=0 expression access device n does not have data cached i；am,iFor 0,1 parameter, am,i=1 represents terminal device M request downloading datas i；For 0,1 variable,Represent transmission mode zj(m) selected by terminal device j；ln,iFor 0,1 variable, ln,i=1 represents that access device n needs download and data cached i, ln,i=0 expression access device n need not be downloaded And data cached i；MnTo have access to the terminal device set of access device n.
Optionally, above-mentioned formula two can also be expressed as shown in formula six：
Optionally, in the above-mentioned methods, the controller sends increase spatial cache request to each access device, including Following two modes：
First way：Minimum of the controller according to needed for the reserved backhaul resources determine each access device is delayed Capacity is deposited, and sends the increase spatial cache comprising the minimal cache capacity needed for the access device to each access device and asks Ask.
Wherein, minimal cache of the controller according to needed for the reserved backhaul resources determine each access device is held Amount, specific method are：
The controller, using formula two, determines each to connect using the reserved backhaul resources as current total backhaul resources Enter the minimal cache capacity needed for equipment.
The second way：The controller determines the data message set pair that the controller is the distribution of each access device The capacity difference of the capacity needed for data acquisition system answered and the current residual buffer memory capacity of corresponding access device, and connect to each Enter equipment and send the increase spatial cache request comprising the access device capacity difference.
By above two mode, the controller can indicate that corresponding access device is empty according to caching is accordingly increased Between request increase the spatial cache of corresponding access device.
Optionally, after the controller sends increase spatial cache request to each access device, the method is also Including：
Any one access device performs following operation, wherein illustrating by taking first access device as an example：
First access device receives the increase spatial cache request that the controller is sent.
Wherein, it is empty according to the increase caching after first access device receives the increase spatial cache request Between ask, perform increase own cache space, including following two situations：
The first situation：When increasing the success of own cache space, first access device determines that current residual caches Capacity, sends the increase spatial cache comprising current cache residual caching capacity to the controller and responds.Wherein, it is described to include The increase spatial cache response of current cache residual caching capacity can carry in first access device to the control The initial context that device is sent is set in response (INITIAL CONTEXT SETUP RESPONSE).
Optionally, first access device increases own cache space according to the increase spatial cache request, execution, Specific method can be：
Needed for the access device that first access device includes in being asked according to the increase spatial cache most Small buffer memory capacity or capacity difference, delete the data being locally stored.
Wherein, can be deleted when first access device deletes the data being locally stored not any in setting time The data that premises equipment requests are downloaded.
The second situation：When increasing the failure of own cache space, first access device is sent to the controller Increase spatial cache response comprising increase spatial cache failed message.Wherein, it is described to include increase spatial cache failed message The response of increase spatial cache can carry the initial context setting sent in first access device to the controller In failed message (INITIAL CONTEXT SETUP FAILSURE).
When wherein, using described the second situation, first access device receives the described of the controller transmission After increasing spatial cache response, it is impossible to normal response；Alternatively, deletable data cannot reach institute in first access device State the demand of the minimal cache capacity or capacity difference needed for the first access device.
Optionally, after each access device is sent to the controller accordingly increases spatial cache response, the control Device processed is responded according to the increase spatial cache of each access device, determines the current residual buffer memory capacity of each access device, tool Body method can be：
The controller is responded according to the increase spatial cache of any of the multiple access device access device, is determined The current residual buffer memory capacity of the access device, specific method can be：
The controller is current by the access device included in the increase spatial cache response of the access device Residual caching capacity is determined as the current residual buffer memory capacity of the access device.
Optionally, the controller determines empty comprising increase caching in the increase spatial cache response in the access device Between failed message when, current residual buffer memory capacity and the reserved backhaul resources of the controller according to the access device, And the priority of the request of the target terminal device request download of the access device, interrupt priority level are accessed The data download request of low target terminal equipment, then reacquires the data request information of multiple access devices, continues weight Newly data cached information aggregate is treated for the distribution of each access device.For example, terminal device 1 asks downloading data to access device 1 1, while terminal device 2 also downloads the data 1 to the access device 1 request, if the data in the access device 1 1 is only available to one of them in the terminal device 1 and the terminal device 2, if the priority ratio of terminal device 1 is whole at this time The priority of end equipment 2 is low, then the controller interrupts request of the terminal device 1 to the data 1, only described in guarantee Access device 1 provides the data 1 to the terminal device 2, and so described access device 1 is just without being again the terminal device 1 goes to cache the data 1 again, so as to ensure that the current residual buffer memory capacity of the access device 1 is not occupied, makes the control Device processed successfully can distribute target for the access device 1 and treat data cached information aggregate.
Step 205：The target distributed for first access device is treated that data cached information aggregate is sent out by the controller Give first access device.
Optionally, the target distributed for other access devices is treated that data cached information aggregate is sent to phase by the controller The access device answered, wherein, other described access devices be in the multiple access device in addition to first access device Access device.
Optionally, the object transmission pattern of each terminal device and object transmission resource are sent to the mesh by the controller Mark the access device in the object transmission pattern of terminal device.
Wherein, the target distributed for each access device can be treated the letter of data cached information aggregate by the controller Cease and carry the object transmission pattern of each terminal device and object transmission resource and set in the controller to each access In the INITIAL CONTEXT SETUP REQUEST that preparation is sent, wherein the INITIAL CONTEXT SETUP REQUEST The signaling connection ID of access device and terminal device can also be carried, carry foundation, terminal device information, service quality (Quality of service, QoS) etc..
Pass through the above method, it is ensured that other described access devices treat data cached information aggregate according to corresponding target Success caches the target and treats that the corresponding target of data cached information aggregate treats data cached set；And ensure that each target is whole End equipment can avoid disturbing, and reduce in the object transmission pattern and the object transmission transmitted over resources data Backhaul resources consume.
Optionally, the controller that the controller transmission is received in first access device is the described first access After the target of equipment distribution treats data cached information aggregate, the method further includes：
First access device establishes net with having accessed at least one target terminal equipment of first access device Network connects；
When first access device is connected with least one target terminal device network to be successfully established, described One access device sends network connection to the controller and is successfully established message；Wherein, the network connection is successfully established message It can carry in the INITIAL CONTEXT SETUP RESPONSE that the access device is sent to the controller.
When first access device is connected with least one target terminal device network foundation failure, described the One access device sends network connection to the controller and establishes failed message, wherein, failed message is established in network connection can be with Carry in the INITIAL CONTEXT SETUP FAILSURE that the access device is sent to the controller.
Correspondingly, the controller, which receives the network connection that first access device returns, is successfully established message, it is described The target that controller initiates to send first access device to first access device treats that data cached information aggregate corresponds to Target treat the flow of data cached set；Or
The controller receives the network connection that first access device returns and establishes failed message, the controller hair Play the network connection release flow for first access device.
Wherein, optionally, the controller initiates to send the mesh of first access device to first access device Mark treats that the corresponding target of data cached information aggregate treats the flow of data cached set, specifically includes：
Controller control and the controller be in gateway on same physical entity by back haul link from distally Server downloads the target and treats data cached set, and then first access device is obtained by back haul link from gateway again The target treats data cached set.
Wherein, optionally, the controller receives the network connection and establishes failed message, and the controller initiates pin Network connection release flow to first access device, specifically includes：
The controller sends to first access device and releases order, described to release order for indicating described first Access device discharges process by radio bearer and discharges related signaling and data transmission resources；Wherein radio bearer release process bag Include but be not limited to radio bearer and establish release (RRC Connection Release procedure).
After first access device receives described release order, the first access device release related signaling and Data transmission resources.
By above-mentioned release flow, first access device can be made to remove unnecessary spatial cache, avoid space The wasting of resources.
The data cached collocation method provided using inventive embodiments, controller receive the number of the first access device Can be that first access device distribution target treats data cached information aggregate after solicited message, wherein, the target is treated Data cached information aggregate includes accessing the first data of the target terminal device request download of first access device Information, and access the second number that the target terminal device request of other access devices (at least one second access device) is downloaded According to information.Since in a period of time, the first object premises equipment requests first for accessing first access device count According to second the second data of target terminal device request of access other access devices, then the follow-up first object is whole End equipment or other target terminal equipment for accessing first access device ask the second data to first access device Probability it is larger.By the above method, the controller is according to the target terminal equipment for accessing first access device While real-time requirement distributes corresponding data cached for first access device, also it is assigned with for first access device The information for the data that the target terminal device requests of other access devices is downloaded is accessed, in this way, first access device can be with First data and second data are cached, so that the target terminal equipment of access first access device subsequently please When seeking download second data, second data are reacquired by back haul link without first access device, from And reduce backhaul resources consumption.
Based on above example, the embodiment of the present invention additionally provides a kind of example of data cached collocation method, is applicable in In mobile communication system as shown in Figure 1, as shown in fig.3, the exemplary idiographic flow includes：
Step 301a, 301b：Each access device in multiple access devices sends access information, data to controller please Ask information and buffer status information.
Each access device sends access information, data request information and buffer status information to controller and can carry In the INITIAL UE MESSAGE that each access device is sent to the controller.
Wherein, the access information of any one access device includes the current target terminal equipment for having accessed the access device, Be currently able to access but do not access the terminal device of the access device；Or including currently having accessed the described access device Target terminal equipment；It is whole that the data request information of any one access device includes the current target for having accessed the access device The information for the data that end equipment request is downloaded；The buffer status information of any one access device includes the residue of the access device Buffer memory capacity and data cached set.
The multiple access device includes the first access device and other access devices, other described access devices include At least one second access device.
Step 302：The controller determines to have accessed the multiple connect according to the access information of the multiple access device Enter at least one transmission mode of multiple target terminal equipment of equipment, wherein, the transmission mode of any one target terminal equipment It is expressed as at least one access device that the target terminal equipment provides data transport service.
Step 303：The controller acquisition has accessed multiple target terminal equipment requirements of the multiple access device The lowest threshold of message transmission rate.
Step 304：The controller is according to the lowest threshold of each target terminal equipment, in the target terminal equipment extremely The object transmission pattern of the target terminal equipment is determined in a few transmission mode, and determines that the target of the target terminal equipment passes Defeated resource.
Step 305：The controller determines to have accessed described more according to the data request information of the multiple access device The total data information aggregate that multiple target terminal device requests of a access device are downloaded, the total data information aggregate include The information for the data that the multiple target terminal device request is downloaded.
Step 306：The controller is according to the buffer status information of each access device, and the reserved backhaul money Source, is that each access device distribution target in the multiple access device treats data cached information in the total data set Set；Wherein, the target of any one access device, which is treated to include in data cached information aggregate, has currently accessed the access device The information of data downloaded of target terminal device request, the caching in the buffer status information not comprising the access device Data acquisition system, and the target treats that the corresponding target of data cached information aggregate treats that the capacity needed for data cached set is not more than institute State the residual caching capacity of access device.
Wherein, the target of first access device in the multiple access device is treated in data cached information aggregate also The information for the data downloaded comprising at least one target terminal device request for currently having accessed at least one second access device.
Optionally, the controller is according to the buffer status information of each access device, and the reserved backhaul resources, It is that each access device distribution target in the multiple access device treats data cached letter in the total data information aggregate Breath set, specific method can be：
The controller is according to the residual caching capacity in the buffer status information of each access device and data cached Set, is each access device distribution data message set in the total data set；
The controller is calculated caches the corresponding data acquisition system of corresponding data message set and every in each access device When a target terminal equipment uses object transmission pattern and object transmission resource transmission data, the backhaul of each access device consumption The sum of resource, and the sum of backhaul resources that each access device is consumed are as current total backhaul resources；
If current total backhaul resources are not more than the reserved backhaul resources, the controller will be that each access is set The data message set that back-up is matched somebody with somebody treats data cached information aggregate as the target of corresponding access device；
If current total backhaul resources are more than the reserved backhaul resources, the controller sets for each access again Back-up matches somebody with somebody data message set, including：The controller sends increase spatial cache request to each access device, and receives every The increase spatial cache response that a access device returns；The controller is rung according to the increase spatial cache of each access device Answer, determine the current residual buffer memory capacity of each access device；The controller delays according to the current residual of each access device Capacity and data cached set are deposited, it is each access device distribution data message collection in the total data information aggregate to continue Close；
The controller continue to calculate each access device cache the corresponding data acquisition system of corresponding data message set, And when each target terminal equipment uses object transmission pattern and object transmission resource transmission data, each access device consumption The sum of backhaul resources, and the sum of backhaul resources that each access device is consumed are as current total backhaul resources, if described current Total backhaul resources are not more than the reserved backhaul resources, then the controller believes this data for the distribution of each access device Breath set treats data cached information aggregate as the target of corresponding access device；Otherwise, it is every again that the controller, which continues, A access device distributes data message set, until determining what is calculated according to the data message set for the distribution of each access device When current total backhaul resources are not more than the reserved backhaul resources, number of the controller by this for the distribution of each access device According to information aggregate data cached information aggregate is treated as the target of corresponding access device.
Step 307a, 307b：The controller will distribute for first access device in the multiple access device Target treat that data cached information aggregate is sent to first access device, and by for its in the multiple access device He treats that data cached information aggregate is sent to corresponding access device at the target of access device distribution.Wherein, other described accesses Equipment is the access device in addition to first access device in the multiple access device.
Optionally, the target distributed for each access device is treated that data cached information aggregate is sent in the controller After corresponding access device, the method further includes：
The controller receives the network connection that the 3rd access device in the multiple access device returns and is successfully established Message, the target that the controller initiates to send the 3rd access device to the 3rd access device treat data cached information Gather the flow that corresponding target treats data cached set；Or
The controller receives the network connection that the 4th access device in the multiple access device returns and establishes failure Message, the controller initiate the network connection release flow for the 4th access device.
Wherein described 3rd access device and the 4th access device all can be in the multiple access device people One and access device.
Step 308a, 308b：The controller provides the object transmission pattern and object transmission of first object terminal device Source is sent to first access device, and the object transmission pattern of the second target terminal equipment and object transmission resource are sent out Give other access devices.
Wherein, first access device is included in the object transmission pattern of the first object terminal device, described Other described access devices are included in the object transmission pattern of two target terminal equipment.
Using data cached collocation method provided in an embodiment of the present invention, controller can determine that having accessed multiple accesses sets The object transmission pattern and object transmission resource of each target terminal equipment in standby multiple target terminal equipment；And each to connect Enter equipment distribution target and treat data cached information aggregate, wherein the target of the first access device is waited to delay in the multiple access device The letter for the first data downloaded in deposit data information aggregate except accessing the target terminal device request of first access device Breath, the second number also downloaded comprising the target terminal device request for accessing other access devices (at least one second access device) According to information.Since in a period of time, the first object premises equipment requests first for accessing first access device count According to second the second data of target terminal device request of access other access devices, then the follow-up first object is whole End equipment or other target terminal equipment for accessing first access device ask the second data to first access device Probability it is larger.By the above method, each target terminal equipment uses object transmission pattern and object transmission resource transmission number According to when, it is possible to prevente effectively from the interference in intensive small cell network between access device, while the controller is according to connecing The real-time requirement for entering the target terminal equipment of first access device is the corresponding caching number of first access device distribution It is believed that while breath, the target terminal device request download for accessing other access devices is also assigned with for first access device Data information, in this way, first access device can cache first data and second data, so that connecing When entering target terminal equipment subsequent request download second data of first access device, set without the described first access It is standby that second data are reacquired by back haul link, so as to reduce backhaul resources consumption.
Based on above-described embodiment, the embodiment of the present invention additionally provides a kind of controller, which is applied to as shown in Figure 1 Mobile communication system, be used for realization data cached collocation method as shown in Figure 2 and Figure 3.As shown in fig.4, the controller 400 include：Receiving unit 401, processing unit 402 and transmitting element 403, wherein,
The receiving unit 401, the data request information sent for obtaining multiple access devices, wherein, any one connects Entering the data request information of equipment includes the data that the current target terminal device request for having accessed the access device is downloaded Information；
The processing unit 402, for the data request information according to the multiple access device, determines to have accessed described The total data information aggregate that multiple target terminal device requests of multiple access devices are downloaded, the total data information aggregate include The information for the data that the multiple target terminal device request is downloaded；And
It is that the first access device distribution target in the multiple access device is waited to delay in the total data information aggregate Deposit data information aggregate, wherein, the target of first access device is treated to include in data cached information aggregate and currently accessed The information for the data that the target terminal device request of first access device is downloaded, and it is at least one comprising currently having accessed The information for the data that at least one target terminal device request of second access device is downloaded；
The transmitting element 403, for the target distributed for first access device to be treated data cached information aggregate It is sent to first access device.
Optionally, the processing unit 402, is the first access device distribution mesh in the total data information aggregate Mark is specifically used for when data cached information aggregate：
Obtain the minimum of the message transmission rate for the multiple target terminal equipment requirements for having accessed the multiple access device Threshold value；
According to the lowest threshold of each target terminal equipment, the object transmission pattern and target of the target terminal equipment are determined Transfer resource, wherein, the transmission mode of any one target terminal equipment is expressed as the target terminal equipment and provides data transfer At least one access device in the multiple access device of service；
It is every in the multiple access device in the total data information aggregate according to the reserved backhaul resources of system A access device distribution target treats data cached information aggregate, wherein, total backhaul resources are not more than the reserved backhaul resources, institute It is to cache corresponding target in each access device to treat that the corresponding target of data cached information aggregate is waited to cache to state total backhaul resources Data acquisition system and when each target terminal equipment use object transmission pattern and object transmission resource transmission data, is each accessed The sum of backhaul resources of equipment consumption.
Optionally, the receiving unit 401, is additionally operable to obtain the access information that the multiple access device is sent, wherein, The access information of any one access device includes currently having accessed the target terminal equipment of the access device, and is currently able to connect Enter but do not access the terminal device of the access device；Or the multiple access device includes the access of at least one first kind and sets Standby and at least one second class access device, wherein, the access information of any one first kind access device includes currently having accessed The target terminal equipment of the first kind access device, the access information of any one the second class access device include currently having accessed The target terminal equipment of the second class access device, and be currently able to access but do not access the second class access device Terminal device；
The processing unit 402, in the lowest threshold according to each target terminal equipment, determines the target terminal equipment When object transmission pattern and object transmission resource, it is specifically used for：
According to the access information of the multiple access device, at least one transmission mode of the target terminal equipment is determined；
According to the lowest threshold of the target terminal equipment, determined at least one transmission mode of the target terminal equipment The object transmission pattern of the target terminal equipment, and determine the object transmission resource of the target terminal equipment.
Optionally, the processing unit 402, in the access information according to the multiple access device, determines target end During at least one transmission mode of end equipment, it is specifically used for：
In the access information of the multiple access device, the target access information for including the target terminal equipment is determined；
When the number of the target access information is 1, the number for determining the transmission mode of the target terminal equipment is 1, And the transmission mode of the target terminal equipment includes：Send the access device of the target access information；
When the number of the target access information is multiple, the number for determining the transmission mode of the target terminal equipment is It is multiple, and any one transmission mode of the target terminal equipment includes：The multiple accesses for sending the target access information are set Any one in standby or combination.
Optionally, any one target terminal equipment using object transmission pattern and object transmission resource transmission data when Lowest threshold of the message transmission rate not less than the message transmission rate of the target terminal equipment requirement.
Optionally, in the multiple target terminal equipment, at least two target terminal equipment of same access device are accessed Object transmission resource it is different.
Optionally, total transmit power of any of the multiple access device access device is not more than the access device Transmit power threshold value, total transmit power of the access device accessed the access and set for the access device for multiple The sum of standby transmit power of target terminal equipment；
Wherein, the access device is directed to the transmission work(of any one the target terminal equipment for having accessed the access device Rate, be the access device in the object transmission resource of the target terminal equipment for having accessed the access device to described The transmit power when target terminal equipment of the access device carries out data transmission is accessed.
Optionally, the receiving unit 401, is additionally operable to obtain the buffer status information that the multiple access device is sent, Wherein, the residual caching capacity of the buffer status information of any one access device including the access device and data cached collection Close；
The processing unit 402, is described in the total data information aggregate in the reserved backhaul resources according to system Each access device in multiple access devices distributes target when data cached information aggregate, is specifically used for：
According to the buffer status information of each access device, and the reserved backhaul resources, in the total data set In be in the multiple access device each access device distribution target treat data cached information aggregate；Wherein, any one connects Enter equipment target treat in data cached information aggregate not comprising the access device buffer status information in caching number According to set, and the target treats that the corresponding target of data cached information aggregate treats capacity needed for data cached set no more than described The residual caching capacity of access device.
Optionally, the processing unit 402, in the buffer status information according to each access device, and it is described reserved Backhaul resources, are that each access device distribution target in the multiple access device is waited to delay in the total data information aggregate During deposit data information aggregate, it is specifically used for：
Residual caching capacity in the buffer status information of each access device and data cached set, described It is each access device distribution data message set in total data set；
Calculate and cache the corresponding corresponding data acquisition system of data message set and each target terminal in each access device When equipment uses object transmission pattern and object transmission resource transmission data, the sum of backhaul resources of each access device consumption, And the sum of backhaul resources for consuming each access device are as current total backhaul resources；
If current total backhaul resources are not more than the reserved backhaul resources, the number that will be distributed for each access device According to information aggregate data cached information aggregate is treated as the target of corresponding access device；
If current total backhaul resources are more than the reserved backhaul resources, data are distributed for each access device again Information aggregate, including：The transmitting element 403 is controlled to send increase spatial cache request to each access device, and described After receiving unit 401 receives the increase spatial cache response that each access device returns, according to the increase of each access device Spatial cache responds, and determines the current residual buffer memory capacity of each access device；Delayed according to the current residual of each access device Capacity and data cached set are deposited, it is each access device distribution data message collection in the total data information aggregate to continue Close；
Continue to calculate and cache the corresponding corresponding data acquisition system of data message set and each target in each access device When terminal device uses object transmission pattern and object transmission resource transmission data, the backhaul resources of each access device consumption it With, and the sum of backhaul resources that each access device is consumed are as current total backhaul resources, if current total backhaul resources No more than the reserved backhaul resources, then this is accessed for the data message set of each access device distribution as corresponding The target of equipment treats data cached information aggregate；Otherwise, continue to distribute data message set again for each access device, until The current total backhaul resources for determining to be calculated according to the data message set for the distribution of each access device are reserved back no more than described During Cheng Ziyuan, this data message set for the distribution of each access device is waited to cache as the target of corresponding access device Data message set.
Optionally, total backhaul resources meet the following formula：
Wherein, I is the total data set that at least one premises equipment requests are downloaded；I is included in I；M is at least one end The set of end equipment；M is included in M；N is multiple access device set, and n is included in N；zj(m) transmission for being terminal device j Pattern, j are included in M；Z (m) is the transmission mode set of at least one terminal device；N is in the transmission mode of terminal device j Access device；ωn,iFor 0,1 parameter, ωn,i=1 expression access device n is cached with data i, ωn,i=0 represents access device n There is no data cached i；am,iFor 0,1 parameter, am,i=1 represents terminal device m request downloading datas i；For 0,1 variable,Represent transmission mode zj(m) selected by terminal device j；ln,iFor 0,1 variable, ln,i=1 represents that access device n is needed Download and data cached i, ln,i=0 expression access device n need not be downloaded and data cached i；MnSet to have access to access The terminal device set of standby n.
Optionally, the processing unit 402, it is specific to use when sending increase spatial cache request to each access device In：
Minimal cache capacity according to needed for the reserved backhaul resources determine each access device, and control the transmission Unit 403 sends the increase spatial cache comprising the minimal cache capacity needed for the access device to each access device and asks； Or
Be determined as capacity needed for the corresponding data message of data message set of each access device distribution with it is corresponding The capacity difference of the current residual buffer memory capacity of access device, and control the transmitting element 403 to be sent to each access device Increase spatial cache request comprising the access device capacity difference.
Optionally, the processing unit 402, responds according to the increase spatial cache of each access device, determines each During the current residual buffer memory capacity of access device, it is specifically used for：
Responded according to the increase spatial cache of any of the multiple access device access device, determine that the access is set Standby current residual buffer memory capacity, is specifically used for：
The current residual of the access device included during the increase spatial cache of the access device is responded, which caches, to be held Amount is determined as the current residual buffer memory capacity of the access device.
Optionally, the processing unit 402, is additionally operable to determine to wrap in the increase spatial cache response in the access device During the spatial cache failed message containing increase, setting terminal equipment in the access device is performed and interrupts data download request behaviour Make, and determine the current residual buffer memory capacity of the access device.
Optionally, the transmitting element 403, is additionally operable to：
The target distributed for other access devices is treated that data cached information aggregate is sent to corresponding access device, its In, other described access devices are the access devices in addition to first access device in the multiple access device；And
The object transmission pattern of each target terminal equipment and object transmission resource are sent to the target terminal equipment Access device in object transmission pattern.
Optionally, the processing unit 402, treats the target distributed for each access device in the transmitting element 403 Data cached information aggregate is sent to after corresponding access device, is additionally operable to：
The network connection that the 3rd access device in the receiving unit 401 receives the multiple access device returns After being successfully established message, the target for initiating to send the 3rd access device to the 3rd access device treats data cached information Gather the flow that corresponding target treats data cached set；Or
The network connection that the 4th access device in the receiving unit 401 receives the multiple access device returns After establishing failed message, the network connection release flow for the 4th access device is initiated.
, can be with after the data request information for receiving the first access device using controller provided in an embodiment of the present invention Target, which is distributed, for first access device treats data cached information aggregate, wherein, the target treats data cached information aggregate Include accessing the information of the first data of the target terminal device request download of first access device, and access other The information for the second data that the target terminal device request of access device (at least one second access device) is downloaded.Due to one In a period, the first data of first object premises equipment requests of first access device are accessed, described other of access connect Enter second the second data of target terminal device request of equipment, then the follow-up first object terminal device or other access institutes The target terminal equipment for stating the first access device asks the probability of the second data larger to first access device.By above-mentioned Method, the controller connect in the real-time requirement according to the target terminal equipment for accessing first access device for described first While entering equipment distribution corresponding data cached information, also it is assigned with for first access device and accesses other access devices Target terminal device request download data information, in this way, first access device can cache first data With second data, counted so that the target terminal equipment subsequent request of access first access device downloads described second According to when, second data are reacquired by back haul link without first access device, are disappeared so as to reduce backhaul resources Consumption.
Based on above-described embodiment, the embodiment of the present invention additionally provides a kind of first access device, which should For mobile communication system as shown in Figure 1, data cached collocation method as shown in Figure 2 and Figure 3 is used for realization.Refering to Fig. 5 Shown, which includes：Transmitting element 501 and receiving unit 502, wherein,
The transmitting element 501, for sending data request information to controller, wherein, the data request information bag Include the information for the data that the current target terminal device request for having accessed first access device 500 is downloaded；
The receiving unit 502, receives the controller that the controller is sent and divides for first access device 500 The target matched somebody with somebody treats data cached information aggregate, wherein, the target, which is treated to include in data cached information aggregate, has currently accessed institute The information for the data that the target terminal device request of the first access device 500 is downloaded is stated, and comprising currently having accessed at least one The information for the data that at least one target terminal device request of a second access device is downloaded.
Optionally, the transmitting element 501, is additionally operable to：
Access information is sent to the controller, wherein, the access information includes currently having accessed first access The target terminal equipment of equipment 500, and be currently able to access but do not access the terminal device of first access device 500；Or Access information described in person includes the current target terminal equipment for having accessed first access device 500.
Optionally, the transmitting element 501, is additionally operable to：
Buffer status information is sent to the controller, the buffer status information includes first access device 500 Residual caching capacity and data cached set.
Optionally, the target of first access device 500 is treated to connect not comprising described first in data cached information aggregate Enter the data cached set in the buffer status information of equipment 500, and the target treats the corresponding mesh of data cached information aggregate Mark treats that the capacity needed for data cached set is not more than the residual caching capacity of first access device 500.
Optionally, the receiving unit 502, is the described first access in the controller for receiving the controller transmission Before the target that equipment 500 is distributed treats data cached information aggregate, it is additionally operable to：
Receive the increase spatial cache request that the controller is sent；
First access device 500, further includes：
Processing unit 503, for according to the increase spatial cache request, performing increase own cache space；
When increasing the success of own cache space, determine current residual buffer memory capacity, control the transmitting element 501 to institute State controller and send the increase spatial cache response comprising current cache residual caching capacity；Or
When increasing the failure of own cache space, the transmitting element 501 is controlled to be sent to the controller comprising increase The increase spatial cache response of spatial cache failed message.
Optionally, the processing unit 503, according to the increase spatial cache request, it is empty to perform increase own cache Between when, be specifically used for：
According to the minimal cache capacity needed for first access device 500 included in the increase spatial cache request Or capacity difference, delete the data being locally stored.
Optionally, the receiving unit 502, is additionally operable to：
The object transmission pattern and object transmission resource at least one target terminal equipment that the controller is sent are received, Wherein, first access device 500 is included in the object transmission pattern of at least one target terminal equipment.
Optionally, the processing unit 503, is additionally operable to receive the institute of the controller transmission in the receiving unit 502 It is after the target that first access device 500 distributes treats data cached set, to be connect with having accessed described first to state controller At least one target terminal equipment for entering equipment 500 establishes network connection；
The transmitting element 501, is additionally operable to when the processing unit 503 and at least one target terminal device network When connection is successfully established, sends network connection to the controller and be successfully established message；And
When the processing unit 503 is connected with least one target terminal device network foundation failure, to described Controller sends network connection and establishes failed message.
The first access device is provided using the embodiment of the present invention, data request information is sent to controller, so that the control Device processed distributes target for first access device and treats data cached information aggregate, wherein, the target treats data cached information Set includes the information for accessing the first data of the target terminal device request download of first access device, and access The information for the second data that the target terminal device request of other access devices (at least one second access device) is downloaded.Due to In a period of time, access the first data of first object premises equipment requests of first access device, access it is described its Second the second data of target terminal device request of his access device, then the follow-up first object terminal device or other connect The target terminal equipment for entering first access device asks the probability of the second data larger to first access device.Using The above method, the controller are described the in the real-time requirement according to the target terminal equipment for accessing first access device While one access device distributes corresponding data cached information, being also assigned with access for first access device, other are accessed The information for the data that the target terminal device request of equipment is downloaded, in this way, first access device can cache described first Data and second data, so that the target terminal equipment subsequent request of access first access device downloads described the During two data, second data are reacquired by back haul link without first access device, so as to reduce backhaul money Source consumes.
It should be noted that the division in the embodiment of the present invention to unit is schematical, it is only a kind of logic function Division, can there is other dividing mode when actually realizing.Each functional unit in embodiments herein can be integrated in In one processing unit or unit is individually physically present, can also two or more units be integrated in one In a unit.Above-mentioned integrated unit can both be realized in the form of hardware, can also use the form of SFU software functional unit Realize.
If the integrated unit is realized in the form of SFU software functional unit and is used as independent production marketing or use When, it can be stored in a computer read/write memory medium.Based on such understanding, the technical solution of the application is substantially The part to contribute in other words to the prior art or all or part of the technical solution can be in the form of software products Embody, which is stored in a storage medium, including some instructions are used so that a computer It is each that equipment (can be personal computer, server, or network equipment etc.) or processor (processor) perform the application The all or part of step of embodiment the method.And foregoing storage medium includes：USB flash disk, mobile hard disk, read-only storage (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), magnetic disc or CD Etc. it is various can be with the medium of store program codes.
Based on above example, the embodiment of the present invention additionally provides a kind of controller, and the controller is applied to such as Fig. 1 institutes The mobile communication system shown, further includes the first access device in the mobile communication system, as shown in fig.6, the controller 600 include：Transceiver 601, processor 602, bus 603 and memory 604, wherein,
The transceiver 601, the processor 602 and the memory 604 are connected with each other by the bus 603； The bus 603 can be Peripheral Component Interconnect standard (peripheral component interconnect, PCI) bus Or expanding the industrial standard structure (extended industry standard architecture, EISA) bus etc..It is described total Line can be divided into address bus, data/address bus, controlling bus etc..For ease of representing, only represented in Fig. 6 with a thick line, but simultaneously Only a bus or a type of bus are not indicated that.
The transceiver 601, for the other equipment being connected with the controller 600 in the mobile communication system Carry out communication interaction.
The processor 602, is used for realization data cached collocation method as shown in Figure 2 and Figure 3, including：
The data request information that multiple access devices are sent is obtained, wherein, the data request information of any one access device The information for the data that target terminal device request including currently having accessed the access device is downloaded；
According to the data request information of the multiple access device, determine to have accessed multiple mesh of the multiple access device The total data information aggregate that premises equipment requests are downloaded is marked, the total data information aggregate includes the multiple target terminal equipment Ask the information of data downloaded；And
It is that the first access device distribution target in the multiple access device is waited to delay in the total data information aggregate Deposit data information aggregate, wherein, the target of first access device is treated to include in data cached information aggregate and currently accessed The information for the data that the target terminal device request of first access device is downloaded, and it is at least one comprising currently having accessed The information for the data that at least one target terminal device request of second access device is downloaded；
The target distributed for first access device is treated that data cached information aggregate is sent to first access and sets It is standby.
Optionally, the processor 602, is the first access device distribution target in the total data information aggregate When data cached information aggregate, it is specifically used for：
Obtain the minimum of the message transmission rate for the multiple target terminal equipment requirements for having accessed the multiple access device Threshold value；
According to the lowest threshold of each target terminal equipment, the object transmission pattern and target of the target terminal equipment are determined Transfer resource, wherein, the transmission mode of any one target terminal equipment is expressed as the target terminal equipment and provides data transfer At least one access device in the multiple access device of service；
It is every in the multiple access device in the total data information aggregate according to the reserved backhaul resources of system A access device distribution target treats data cached information aggregate, wherein, total backhaul resources are not more than the reserved backhaul resources, institute It is to cache corresponding target in each access device to treat that the corresponding target of data cached information aggregate is waited to cache to state total backhaul resources Data acquisition system and when each target terminal equipment use object transmission pattern and object transmission resource transmission data, is each accessed The sum of backhaul resources of equipment consumption.
Optionally, the processor 602, is additionally operable to obtain the access information that the multiple access device is sent, wherein, appoint The access information of one access device include currently accessed the target terminal equipment of the access device, and be currently able to access, But the terminal device of the access device is not accessed；Or the multiple access device include at least one first kind access device and At least one second class access device, wherein, the access information of any one first kind access device is included described in current accessed The target terminal equipment of first kind access device, the access information of any one the second class access device are included described in current accessed The target terminal equipment of second class access device, and be currently able to access but do not access the terminal of the second class access device Equipment；
The processor 602, in the lowest threshold according to each target terminal equipment, determines the mesh of the target terminal equipment When marking transmission mode and object transmission resource, it is specifically used for：
According to the access information of the multiple access device, at least one transmission mode of the target terminal equipment is determined；
According to the lowest threshold of the target terminal equipment, determined at least one transmission mode of the target terminal equipment The object transmission pattern of the target terminal equipment, and determine the object transmission resource of the target terminal equipment.
Optionally, the processor 602, in the access information according to the multiple access device, determines the target terminal During at least one transmission mode of equipment, it is specifically used for：
In the access information of the multiple access device, the target access information for including the target terminal equipment is determined；
When the number of the target access information is 1, the number for determining the transmission mode of the target terminal equipment is 1, And the transmission mode of the target terminal equipment includes：Send the access device of the target access information；
When the number of the target access information is multiple, the number for determining the transmission mode of the target terminal equipment is It is multiple, and any one transmission mode of the target terminal equipment includes：The multiple accesses for sending the target access information are set Any one in standby or combination.
Optionally, any one target terminal equipment using object transmission pattern and object transmission resource transmission data when Lowest threshold of the message transmission rate not less than the message transmission rate of the target terminal equipment requirement.
Optionally, in the multiple target terminal equipment, at least two target terminal equipment of same access device are accessed Object transmission resource it is different.
Optionally, total transmit power of any of the multiple access device access device is not more than the access device Transmit power threshold value, total transmit power of the access device accessed the access and set for the access device for multiple The sum of standby transmit power of target terminal equipment；
Wherein, the access device is directed to the transmission work(of any one the target terminal equipment for having accessed the access device Rate, be the access device in the object transmission resource of the target terminal equipment for having accessed the access device to described The transmit power when target terminal equipment of the access device carries out data transmission is accessed.
Optionally, the processor 602, is additionally operable to obtain the buffer status information that the multiple access device is sent, its In, the buffer status information of any one access device includes the residual caching capacity and data cached collection of the access device Close；
The processing processor 602, is institute in the total data information aggregate in the reserved backhaul resources according to system State each access device in multiple access devices and distribute target when data cached information aggregate, be specifically used for：
According to the buffer status information of each access device, and the reserved backhaul resources, in the total data set In be in the multiple access device each access device distribution target treat data cached information aggregate；Wherein, any one connects Enter equipment target treat in data cached information aggregate not comprising the access device buffer status information in caching number According to set, and the target treats that the corresponding target of data cached information aggregate treats capacity needed for data cached set no more than described The residual caching capacity of access device.
Optionally, the processor 602, in the buffer status information according to each access device, and described is reserved back Cheng Ziyuan, is that each access device distribution target in the multiple access device is waited to cache in the total data information aggregate During data message set, it is specifically used for：
Residual caching capacity in the buffer status information of each access device and data cached set, described It is each access device distribution data message set in total data set；
Calculate and cache the corresponding corresponding data acquisition system of data message set and each target terminal in each access device When equipment uses object transmission pattern and object transmission resource transmission data, the sum of backhaul resources of each access device consumption, And the sum of backhaul resources for consuming each access device are as current total backhaul resources；
If current total backhaul resources are not more than the reserved backhaul resources, the number that will be distributed for each access device According to information aggregate data cached information aggregate is treated as the target of corresponding access device；
If current total backhaul resources are more than the reserved backhaul resources, data are distributed for each access device again Information aggregate, including：Increase spatial cache request is sent to each access device, and receives the increase that each access device returns Spatial cache responds；Responded according to the increase spatial cache of each access device, determine that the current residual of each access device is delayed Deposit capacity；According to the current residual buffer memory capacity of each access device and data cached set, continue in the sum it is believed that It is each access device distribution data message set in breath set；
Continue to calculate and cache the corresponding corresponding data acquisition system of data message set and each target in each access device When terminal device uses object transmission pattern and object transmission resource transmission data, the backhaul resources of each access device consumption it With, and the sum of backhaul resources that each access device is consumed are as current total backhaul resources, if current total backhaul resources No more than the reserved backhaul resources, then this is accessed for the data message set of each access device distribution as corresponding The target of equipment treats data cached information aggregate；Otherwise, continue to distribute data message set again for each access device, until The current total backhaul resources for determining to be calculated according to the data message set for the distribution of each access device are reserved back no more than described During Cheng Ziyuan, this data message set for the distribution of each access device is waited to cache as the target of corresponding access device Data message set.
Optionally, total backhaul resources meet the following formula：
Wherein, I is the total data set that at least one premises equipment requests are downloaded；I is included in I；M is at least one end The set of end equipment；M is included in M；N is multiple access device set, and n is included in N；zj(m) transmission for being terminal device j Pattern, j are included in M；Z (m) is the transmission mode set of at least one terminal device；N is in the transmission mode of terminal device j Access device；ωn,iFor 0,1 parameter, ωn,i=1 expression access device n is cached with data i, ωn,i=0 represents access device n There is no data cached i；am,iFor 0,1 parameter, am,i=1 represents terminal device m request downloading datas i；For 0,1 variable,Represent transmission mode zj(m) selected by terminal device j；ln,iFor 0,1 variable, ln,i=1 represents that access device n is needed Download and data cached i, ln,i=0 expression access device n need not be downloaded and data cached i；MnSet to have access to access The terminal device set of standby n.
Optionally, the processor 602, when sending increase spatial cache request to each access device, is specifically used for：
Minimal cache capacity according to needed for the reserved backhaul resources determine each access device, and set to each access Preparation send the increase spatial cache comprising the minimal cache capacity needed for the access device to ask；Or
Be determined as capacity needed for the corresponding data acquisition system of data message set of each access device distribution with it is corresponding The capacity difference of the current residual buffer memory capacity of access device, and sent to each access device and include the access device capacity difference The increase spatial cache request of value.
Optionally, the processor 602, responds according to the increase spatial cache of each access device, determines each to connect When entering the current residual buffer memory capacity of equipment, it is specifically used for：
Responded according to the increase spatial cache of any of the multiple access device access device, determine that the access is set Standby current residual buffer memory capacity, including：
The current residual of the access device included during the increase spatial cache of the access device is responded, which caches, to be held Amount is determined as the current residual buffer memory capacity of the access device.
Optionally, the processor 602, is additionally operable to determine to include in the increase spatial cache response in the access device When increasing spatial cache failed message, interrupt requests operation is performed to setting terminal equipment in the access device, and determine institute State the current residual buffer memory capacity of access device.
Optionally, the processor 602, is additionally operable to：
The target distributed for other access devices is treated that data cached information aggregate is sent to corresponding access device, its In, other described access devices are the access devices in addition to first access device in the multiple access device；And
The object transmission pattern of each target terminal equipment and object transmission resource are sent to the target terminal equipment Access device in object transmission pattern.
Optionally, the processor 602, is treating that data cached information aggregate is sent out by the target distributed for each access device After giving corresponding access device, it is additionally operable to：
Receive the network connection that the 3rd access device in the multiple access device returns and be successfully established message, initiate to The target that 3rd access device sends the 3rd access device treats that the corresponding target of data cached information aggregate is waited to cache The flow of data acquisition system；Or
Receive the network connection that the 4th access device in the multiple access device returns and establish failed message, initiate pin Network connection release flow to the 4th access device.
The memory 604, for storing program etc..Specifically, program can include program code, the program code bag Include computer-managed instruction.The memory 604 may include RAM, it is also possible to further include nonvolatile memory (non- Volatile memory), a for example, at least magnetic disk storage.The processor 602 performs the memory 604 and is stored Application program, above-mentioned function is realized, so as to fulfill data cached collocation method as shown in Figure 2 and Figure 3.
, can be with after the data request information for receiving the first access device using controller provided in an embodiment of the present invention Target, which is distributed, for first access device treats data cached information aggregate, wherein, the target treats data cached information aggregate Include accessing the information of the first data of the target terminal device request download of first access device, and access other The information for the second data that the target terminal device request of access device (at least one second access device) is downloaded.Due to one In a period, the first data of first object premises equipment requests of first access device are accessed, described other of access connect Enter second the second data of target terminal device request of equipment, then the follow-up first object terminal device or other access institutes The target terminal equipment for stating the first access device asks the probability of the second data larger to first access device.Using above-mentioned Method, the controller connect in the real-time requirement according to the target terminal equipment for accessing first access device for described first While entering equipment distribution corresponding data cached information, also it is assigned with for first access device and accesses other access devices Target terminal device request download data information, in this way, first access device can cache first data With second data, counted so that the target terminal equipment subsequent request of access first access device downloads described second According to when, second data are reacquired by back haul link without first access device, are disappeared so as to reduce backhaul resources Consumption.
Based on above example, the embodiment of the present invention additionally provides a kind of first access device, first access device Applied to mobile communication system as shown in Figure 1, controller is further included in the mobile communication system, as shown in fig.7, described First access device 700 includes：Transceiver 701, processor 702, bus 703 and memory 704, wherein,
The transceiver 701, the processor 702 and the memory 704 are connected with each other by the bus 703； The bus 703 can be Peripheral Component Interconnect standard (peripheral component interconnect, PCI) bus Or expanding the industrial standard structure (extended industry standard architecture, EISA) bus etc..It is described total Line can be divided into address bus, data/address bus, controlling bus etc..For ease of representing, only represented in Fig. 7 with a thick line, but simultaneously Only a bus or a type of bus are not indicated that.
The transceiver 701, for its with being connected with first access device 700 in the mobile communication system He carries out communication interaction at equipment.
The processor 702, is used for realization data cached collocation method as shown in Figure 2 and Figure 3, including：
Data request information is sent to controller, wherein, the data request information includes currently having accessed described first The information for the data that the target terminal device request of access device 700 is downloaded；
Receive the target number to be cached that the controller that the controller is sent is first access device 700 distribution According to information aggregate, wherein, the target, which is treated to include in data cached information aggregate, has currently accessed first access device 700 The information of data downloaded of target terminal device request, and comprising currently having accessed at least one second access device extremely The information for the data that a few target terminal device request is downloaded.
Optionally, the processor 702, is additionally operable to：
Access information is sent to the controller, wherein, the access information includes currently having accessed first access The target terminal equipment of equipment 700, and be currently able to access but do not access the terminal device of first access device 700；Or Access information described in person includes the current target terminal equipment for having accessed first access device 700.
Optionally, the processor 702, is additionally operable to：
Buffer status information is sent to the controller, the buffer status information includes first access device 700 Residual caching capacity and data cached set.
Optionally, the target of first access device 700 is treated to connect not comprising described first in data cached information aggregate Enter the data cached set in the buffer status information of equipment 700, and the target treats the corresponding mesh of data cached information aggregate Mark treats that the capacity needed for data cached set is not more than the residual caching capacity of first access device 700.
Optionally, the processor 702, sets in the controller for receiving the controller transmission for the described first access Before the target of standby 700 distribution treats data cached information aggregate, it is additionally operable to：
Receive the increase spatial cache request that the controller is sent；
According to the increase spatial cache request, increase own cache space is performed；
When increasing the success of own cache space, current residual buffer memory capacity is determined, send to include to the controller and work as The increase spatial cache response of preceding caching residual caching capacity；Or
When increasing the failure of own cache space, the increasing for including increase spatial cache failed message is sent to the controller Spatial cache is added to respond.
Optionally, the processor 702, according to the increase spatial cache request, performs increase own cache space When, it is specifically used for：
According to the minimal cache capacity needed for first access device 700 included in the increase spatial cache request Or capacity difference, delete the data being locally stored.
Optionally, the processor 702, is additionally operable to：
The object transmission pattern and object transmission resource at least one target terminal equipment that the controller is sent are received, Wherein, first access device 700 is included in the object transmission pattern of at least one target terminal equipment.
Optionally, the processor 702, it is described first to be additionally operable in the controller that the reception controller is sent After the target that access device 700 distributes treats data cached set, with having accessed at least one of first access device 700 Target terminal equipment establishes network connection；
When be connected with least one target terminal device network be successfully established when, to the controller send network connect Connect and be successfully established message；And
When being connected foundation failure with least one target terminal device network, send network to the controller and connect Connect and establish failed message.
The memory 704, for storing program etc..Specifically, program can include program code, the program code bag Include computer-managed instruction.The memory 704 may include RAM, it is also possible to further include nonvolatile memory (non- Volatile memory), a for example, at least magnetic disk storage.The processor 702 performs the memory 704 and is stored Application program, above-mentioned function is realized, so as to fulfill data cached collocation method as shown in Figure 2 and Figure 3.
The first access device is provided using the embodiment of the present invention, data request information is sent to controller, so that the control Device processed distributes target for first access device and treats data cached information aggregate, wherein, the target treats data cached information Set includes the information for accessing the first data of the target terminal device request download of first access device, and access The information for the second data that the target terminal device request of other access devices (at least one second access device) is downloaded.Due to In a period of time, access the first data of first object premises equipment requests of first access device, access it is described its Second the second data of target terminal device request of his access device, then the follow-up first object terminal device or other connect The target terminal equipment for entering first access device asks the probability of the second data larger to first access device.Pass through The above method, the controller are described the in the real-time requirement according to the target terminal equipment for accessing first access device While one access device distributes corresponding data cached information, being also assigned with access for first access device, other are accessed The information for the data that the target terminal device request of equipment is downloaded, in this way, first access device can cache described first Data and second data, so that the target terminal equipment subsequent request of access first access device downloads described the During two data, second data are reacquired by back haul link without first access device, so as to reduce backhaul money Source consumes.
In conclusion the data cached collocation method and device provided in the embodiment of the present invention, controller receives Can be that first access device distribution target treats data cached information aggregate after the data request information of one access device, Wherein, the target treats that data cached information aggregate includes accessing under the target terminal device request of first access device Carry the first data information, and access other access devices (at least one second access device) target terminal equipment please Seek the information of the second data of download.Due in a period of time, accessing the first object terminal of first access device The first data of device request, access second the second data of target terminal device request of other access devices, then follow-up The first object terminal device or other target terminal equipment for accessing first access device are set to the described first access The probability of the second data of standby request is larger.By the above method, the controller is according to access first access device While the real-time requirement of target terminal equipment distributes corresponding data cached information for first access device, also to be described First access device is assigned with the information of the data for the target terminal device request download for accessing other access devices, in this way, institute First data and second data can be cached by stating the first access device, so that access first access device When target terminal equipment subsequent request downloads second data, obtained again by back haul link without first access device Second data are taken, so as to reduce backhaul resources consumption.
It should be understood by those skilled in the art that, the embodiment of the present invention can be provided as method, system or computer program Product.Therefore, the present invention can use the reality in terms of complete hardware embodiment, complete software embodiment or combination software and hardware Apply the form of example.Moreover, the present invention can use the computer for wherein including computer usable program code in one or more The computer program production that usable storage medium is implemented on (including but not limited to magnetic disk storage, CD-ROM, optical memory etc.) The form of product.
The present invention be with reference to according to the method for the embodiment of the present invention, the flow of equipment (system) and computer program product Figure and/or block diagram describe.It should be understood that it can be realized by computer program instructions every first-class in flowchart and/or the block diagram The combination of flow and/or square frame in journey and/or square frame and flowchart and/or the block diagram.These computer programs can be provided The processors of all-purpose computer, special purpose computer, Embedded Processor or other programmable data processing devices is instructed to produce A raw machine so that the instruction performed by computer or the processor of other programmable data processing devices, which produces, to be used in fact The device for the function of being specified in present one flow of flow chart or one square frame of multiple flows and/or block diagram or multiple square frames.
These computer program instructions, which may also be stored in, can guide computer or other programmable data processing devices with spy Determine in the computer-readable memory that mode works so that the instruction being stored in the computer-readable memory, which produces, to be included referring to Make the manufacture of device, the command device realize in one flow of flow chart or multiple flows and/or one square frame of block diagram or The function of being specified in multiple square frames.
These computer program instructions can be also loaded into computer or other programmable data processing devices so that counted Series of operation steps is performed on calculation machine or other programmable devices to produce computer implemented processing, thus in computer or The instruction performed on other programmable devices is provided and is used for realization in one flow of flow chart or multiple flows and/or block diagram one The step of function of being specified in a square frame or multiple square frames.
Although preferred embodiments of the present invention have been described, but those skilled in the art once know basic creation Property concept, then can make these embodiments other change and modification.So appended claims be intended to be construed to include it is excellent Select embodiment and fall into all change and modification of the scope of the invention.
Obviously, those skilled in the art can carry out the embodiment of the present invention various modification and variations without departing from this hair The spirit and scope of bright embodiment.In this way, if these modifications and variations of the embodiment of the present invention belong to the claims in the present invention And its within the scope of equivalent technologies, then the present invention is also intended to comprising including these modification and variations.

Claims (32)

  1. A kind of 1. data cached collocation method, it is characterised in that including：
    Controller obtains the data request information that multiple access devices are sent, wherein, the request of data letter of any one access device Breath includes the information for the data that the current target terminal device request for having accessed the access device is downloaded；
    The controller determines to have accessed the multiple access device according to the data request information of the multiple access device The total data information aggregate that multiple target terminal device requests are downloaded, it is whole that the total data information aggregate includes the multiple target The information for the data that end equipment request is downloaded；
    The controller is the first access device distribution mesh in the multiple access device in the total data information aggregate Mark treats data cached information aggregate, wherein, the target of first access device is treated in data cached information aggregate comprising current The information for the data that the target terminal device request of first access device is downloaded has been accessed, and comprising currently having accessed to The information for the data that at least one target terminal device request of few second access device is downloaded；
    The target distributed for first access device is treated that data cached information aggregate is sent to described first by the controller Access device.
  2. 2. the method as described in claim 1, it is characterised in that the controller is described in the total data information aggregate First access device distribution target treats data cached information aggregate, including：
    The controller obtains the message transmission rate for the multiple target terminal equipment requirements for having accessed the multiple access device Lowest threshold；
    The controller determines the object transmission pattern of the target terminal equipment according to the lowest threshold of each target terminal equipment With object transmission resource, wherein, the transmission mode of any one target terminal equipment is expressed as the target terminal equipment and provides number According at least one access device in the multiple access device of transmission service；
    The controller is the multiple access device in the total data information aggregate according to the reserved backhaul resources of system In each access device distribution target treat data cached information aggregate, wherein, total backhaul resources are not more than the reserved backhaul Resource, total backhaul resources are to cache corresponding target in each access device to treat the corresponding target of data cached information aggregate When data cached set and each target terminal equipment use object transmission pattern and object transmission resource transmission data, often The sum of backhaul resources of a access device consumption.
  3. 3. method as claimed in claim 2, it is characterised in that the controller is according to the minimum threshold of each target terminal equipment Value, determines the object transmission pattern and object transmission resource of the target terminal equipment, including：
    The controller obtains the access information that the multiple access device is sent, wherein, the access letter of any one access device Breath includes currently having accessed the target terminal equipment of the access device, and is currently able to access but do not access the access device Terminal device；Or the multiple access device includes at least one first kind access device and the access of at least one second class is set It is standby, wherein, the access information of any one first kind access device includes the current target for having accessed the first kind access device Terminal device, the access information of any one the second class access device include the current target for having accessed the second class access device Terminal device, and be currently able to access but do not access the terminal device of the second class access device；
    The controller determines at least one transmission of the target terminal equipment according to the access information of the multiple access device Pattern；
    The controller is according to the lowest threshold of the target terminal equipment, at least one transmission mode of the target terminal equipment In determine the target terminal equipment object transmission pattern, and determine the target terminal equipment object transmission resource.
  4. 4. method as claimed in claim 3, it is characterised in that the controller is believed according to the access of the multiple access device Breath, determines at least one transmission mode of the target terminal equipment, including：
    The controller determines that the target comprising the target terminal equipment accesses in the access information of the multiple access device Information；
    When the number of the target access information is 1, the controller determines the number of the transmission mode of the target terminal equipment Mesh is 1, and the transmission mode of the target terminal equipment includes：Send the access device of the target access information；
    When the number of the target access information is multiple, the controller determines the transmission mode of the target terminal equipment Number is multiple, and any one transmission mode of the target terminal equipment includes：Send the multiple of the target access information Any one in access device or combination.
  5. 5. such as claim 2-4 any one of them methods, it is characterised in that the controller is provided according to the reserved backhaul of system Source, is that each access device distribution target in the multiple access device treats data cached in the total data information aggregate Information aggregate, including：
    The controller obtains the buffer status information that the multiple access device is sent, wherein, any one access device delays Deposit the residual caching capacity and data cached set of status information including the access device；
    The controller is according to the buffer status information of each access device, and the reserved backhaul resources, in the sum According to be in set in the multiple access device each access device distribution target treat data cached information aggregate；Wherein, appoint The target of one access device treat in data cached information aggregate not comprising the access device buffer status information in Data cached set, and the target treats that the corresponding target of data cached information aggregate treats that the capacity needed for data cached set is little In the residual caching capacity of the access device.
  6. 6. method as claimed in claim 5, it is characterised in that the controller is believed according to the buffer status of each access device Breath, and the reserved backhaul resources, are each accessing in the multiple access device in the total data information aggregate Equipment distribution target treats data cached information aggregate, including：
    The controller according to the residual caching capacity in the buffer status information of each access device and data cached set, It is each access device distribution data message set in the total data set；
    The controller is calculated caches the corresponding corresponding data acquisition system of data message set and each mesh in each access device When mark terminal device uses object transmission pattern and object transmission resource transmission data, the backhaul resources of each access device consumption The sum of, and the sum of backhaul resources that each access device is consumed are as current total backhaul resources；
    If current total backhaul resources are not more than the reserved backhaul resources, the controller will be each access device point The data message set matched somebody with somebody treats data cached information aggregate as the target of corresponding access device；
    If current total backhaul resources are more than the reserved backhaul resources, the controller is again each access device point With data message set, including：The controller sends increase spatial cache request to each access device, and receives and each connect Enter the increase spatial cache response of equipment return；The controller is responded according to the increase spatial cache of each access device, really The current residual buffer memory capacity of fixed each access device；The controller is according to the current residual buffer memory capacity of each access device Data cached set, it is each access device distribution data message set in the total data information aggregate to continue；
    The controller continues to calculate caches the corresponding data acquisition system of corresponding data message set and every in each access device When a target terminal equipment uses object transmission pattern and object transmission resource transmission data, the backhaul of each access device consumption The sum of resource, and the sum of backhaul resources that each access device is consumed are as current total backhaul resources, current total is returned if described Cheng Ziyuan is not more than the reserved backhaul resources, then data message collection of the controller by this for the distribution of each access device The target cooperated as corresponding access device treats data cached information aggregate；Otherwise, the controller continues to be each to connect again Enter equipment distribution data message set, until determining to calculate according to the data message set for the distribution of each access device current When total backhaul resources are not more than the reserved backhaul resources, the controller believes this for the data that each access device distributes Breath set treats data cached information aggregate as the target of corresponding access device.
  7. 7. method as claimed in claim 6, it is characterised in that the controller sends increase caching sky to each access device Between ask, including：
    Minimal cache capacity of the controller according to needed for the reserved backhaul resources determine each access device, and to each Access device sends the increase spatial cache request comprising the minimal cache capacity needed for the access device；Or
    The controller determines the controller for the corresponding data acquisition system institute of data message set that each access device distributes The capacity of need and the capacity difference of the current residual buffer memory capacity of corresponding access device, and send and include to each access device The increase spatial cache request of the access device capacity difference.
  8. 8. method as claimed in claims 6 or 7, it is characterised in that the controller delays according to the increase of each access device Roomage response is deposited, determines the current residual buffer memory capacity of each access device, including：
    The controller is responded according to the increase spatial cache of any of the multiple access device access device, is determined described The current residual buffer memory capacity of access device, including：
    The current residual for the access device that the controller includes during the increase spatial cache of the access device is responded Buffer memory capacity is determined as the current residual buffer memory capacity of the access device.
  9. 9. such as claim 2-8 any one of them methods, it is characterised in that the method further includes：
    The target distributed for other access devices is treated that data cached information aggregate is sent to corresponding access and sets by the controller It is standby, wherein, other described access devices are the access devices in addition to first access device in the multiple access device； And
    The object transmission pattern of each target terminal equipment and object transmission resource are sent to the target terminal by the controller Access device in the object transmission pattern of equipment.
  10. 10. such as claim 2-9 any one of them methods, it is characterised in that in the controller will be each access device The target of distribution treats that data cached information aggregate is sent to after corresponding access device, and the method further includes：
    The controller receives the network connection that the 3rd access device in the multiple access device returns and is successfully established message, The target that the controller initiates to send the 3rd access device to the 3rd access device treats data cached information aggregate Corresponding target treats the flow of data cached set；Or
    The controller receives the network connection that the 4th access device in the multiple access device returns and establishes failed message, The controller initiates the network connection release flow for the 4th access device.
  11. A kind of 11. data cached collocation method, it is characterised in that including：
    First access device sends data request information to controller, wherein, the data request information includes currently having accessed The information for the data that the target terminal device request of first access device is downloaded；
    First access device receives the mesh that the controller that the controller is sent is first access device distribution Mark treats data cached information aggregate, wherein, the target, which is treated to include in data cached information aggregate, has currently accessed described first The information for the data that the target terminal device request of access device is downloaded, and accessed comprising currently having accessed at least one second The information for the data that at least one target terminal device request of equipment is downloaded.
  12. 12. method as claimed in claim 11, it is characterised in that the method further includes：
    First access device sends buffer status information to the controller, and the buffer status information includes described first The residual caching capacity of access device and data cached set；
    The target of first access device treats the caching shape for not including first access device in data cached information aggregate Data cached set in state information, and the target treats that the corresponding target of data cached information aggregate treats data cached set institute The capacity needed is not more than the residual caching capacity of first access device.
  13. 13. the method as described in claim 11 or 12, it is characterised in that receive the controller in first access device Before the controller sent treats data cached information aggregate for the target of first access device distribution, the method is also Including：
    First access device receives the increase spatial cache request that the controller is sent；
    First access device performs increase own cache space according to the increase spatial cache request；
    When increasing the success of own cache space, first access device determines current residual buffer memory capacity, to the control Device sends the increase spatial cache comprising current cache residual caching capacity and responds.
  14. 14. method as claimed in claim 13, it is characterised in that first access device is according to the increase spatial cache Request, performs increase own cache space, including：
    Needed for first access device that first access device includes in being asked according to the increase spatial cache most Small buffer memory capacity or capacity difference, delete the data being locally stored, and definite current residual buffer memory capacity.
  15. 15. such as claim 11-14 any one of them methods, it is characterised in that the method further includes：
    First access device receive at least one target terminal equipment that the controller is sent object transmission pattern and Object transmission resource, wherein, set in the object transmission pattern of at least one target terminal equipment comprising the described first access It is standby.
  16. 16. such as claim 11-15 any one of them methods, it is characterised in that described in being received in first access device After the controller that controller is sent treats data cached set for the target of first access device distribution, the method Further include：
    First access device establishes network company with having accessed at least one target terminal equipment of first access device Connect；
    When first access device is connected with least one target terminal device network to be successfully established, described first connects Enter equipment and be successfully established message to controller transmission network connection；
    When first access device is connected foundation failure with least one target terminal device network, described first connects Enter equipment and establish failed message to controller transmission network connection.
  17. A kind of 17. controller, it is characterised in that including：
    Receiving unit, the data request information sent for obtaining multiple access devices, wherein, the data of any one access device Solicited message includes the information for the data that the current target terminal device request for having accessed the access device is downloaded；
    Processing unit, for the data request information according to the multiple access device, determines that having accessed the multiple access sets The total data information aggregate that standby multiple target terminal device requests are downloaded, the total data information aggregate include the multiple mesh Mark the information for the data that premises equipment requests are downloaded；And
    It is the first access device distribution target number to be cached in the multiple access device in the total data information aggregate According to information aggregate, wherein, the target of first access device is treated in data cached information aggregate comprising described in current accessed The information for the data that the target terminal device request of first access device is downloaded, and comprising currently having accessed at least one second The information for the data that at least one target terminal device request of access device is downloaded；
    Transmitting element, for the target distributed for first access device to be treated, data cached information aggregate is sent to described One access device.
  18. 18. controller as claimed in claim 17, it is characterised in that the processing unit, in the total data information aggregate In be that first access device distributes target when data cached information aggregate, be specifically used for：
    Obtain the lowest threshold of the message transmission rate for the multiple target terminal equipment requirements for having accessed the multiple access device；
    According to the lowest threshold of each target terminal equipment, the object transmission pattern and object transmission of the target terminal equipment are determined Resource, wherein, the transmission mode of any one target terminal equipment is expressed as the target terminal equipment and provides data transport service The multiple access device at least one access device；
    It is each connecing in the multiple access device in the total data information aggregate according to the reserved backhaul resources of system Enter equipment distribution target and treat data cached information aggregate, wherein, total backhaul resources are not more than the reserved backhaul resources, described total Backhaul resources are data cached to treat that the corresponding target of data cached information aggregate is treated in the corresponding target of each access device caching Set and when each target terminal equipment uses object transmission pattern and object transmission resource transmission data, each access device The sum of backhaul resources of consumption.
  19. 19. controller as claimed in claim 18, it is characterised in that
    The receiving unit, is additionally operable to obtain the access information that the multiple access device is sent, wherein, any one access device Access information include currently having accessed the target terminal equipment of the access device, and be currently able to access but do not access this and connect Enter the terminal device of equipment；Or the multiple access device includes at least one first kind access device and at least one second Class access device, wherein, the access information of any one first kind access device is set including currently having accessed the first kind access Standby target terminal equipment, the access information of any one the second class access device are set including currently having accessed the second class access Standby target terminal equipment, and be currently able to access but do not access the terminal device of the second class access device；
    The processing unit, in the lowest threshold according to each target terminal equipment, determines that the target of the target terminal equipment passes During defeated pattern and object transmission resource, it is specifically used for：
    According to the access information of the multiple access device, at least one transmission mode of the target terminal equipment is determined；
    According to the lowest threshold of the target terminal equipment, the mesh is determined at least one transmission mode of the target terminal equipment The object transmission pattern of terminal device is marked, and determines the object transmission resource of the target terminal equipment.
  20. 20. controller as claimed in claim 19, it is characterised in that the processing unit, sets according to the multiple access Standby access information, when determining at least one transmission mode of the target terminal equipment, is specifically used for：
    In the access information of the multiple access device, the target access information for including the target terminal equipment is determined；
    When the number of the target access information is 1, the number for determining the transmission mode of the target terminal equipment is 1, and should The transmission mode of target terminal equipment includes：Send the access device of the target access information；
    When the number of the target access information is multiple, the number for determining the transmission mode of the target terminal equipment is more It is a, and any one transmission mode of the target terminal equipment includes：Send multiple access devices of the target access information In any one or combination.
  21. 21. such as claim 18-20 any one of them controllers, it is characterised in that
    The receiving unit, is additionally operable to obtain the buffer status information that the multiple access device is sent, wherein, any one access The residual caching capacity of the buffer status information of equipment including the access device and data cached set；
    The processing unit, is the multiple connect in the total data information aggregate in the reserved backhaul resources according to system Enter each access device in equipment and distribute target when data cached information aggregate, be specifically used for：
    According to the buffer status information of each access device, and the reserved backhaul resources, it is in the total data set Each access device distribution target in the multiple access device treats data cached information aggregate；Wherein, any one access is set Standby target treats the data cached collection in the buffer status information not comprising the access device in data cached information aggregate Close, and the target treats that the corresponding target of data cached information aggregate treats that the capacity needed for data cached set is not more than the access The residual caching capacity of equipment.
  22. 22. controller as claimed in claim 21, it is characterised in that the processing unit, according to each access device Buffer status information, and the reserved backhaul resources, are in the multiple access device in the total data information aggregate Each access device distribute target when data cached information aggregate, be specifically used for：
    Residual caching capacity in the buffer status information of each access device and data cached set, in the sum According to being each access device distribution data message set in set；
    Calculate and cache the corresponding data acquisition system of corresponding data message set and each target terminal equipment in each access device During using object transmission pattern and object transmission resource transmission data, the sum of backhaul resources of each access device consumption, and will The sum of backhaul resources of each access device consumption are as current total backhaul resources；
    If current total backhaul resources are not more than the reserved backhaul resources, the data distributed for each access device are believed Breath set treats data cached information aggregate as the target of corresponding access device；
    If current total backhaul resources are more than the reserved backhaul resources, data message is distributed for each access device again Set, including：The transmitting element is controlled to send increase spatial cache request to each access device, and in the receiving unit After receiving the increase spatial cache response that each access device returns, rung according to the increase spatial cache of each access device Answer, determine the current residual buffer memory capacity of each access device；According to the current residual buffer memory capacity of each access device and Data cached set, it is each access device distribution data message set in the total data information aggregate to continue；
    Continue to calculate and cache the corresponding corresponding data acquisition system of data message set and each target terminal in each access device When equipment uses object transmission pattern and object transmission resource transmission data, the sum of backhaul resources of each access device consumption, And the sum of backhaul resources for consuming each access device, as current total backhaul resources, if described, currently always backhaul resources are little In the reserved backhaul resources, then using the data message set that this is the distribution of each access device as corresponding access device Target treat data cached information aggregate；Otherwise, continue to distribute data message set again for each access device, until determining According to current total backhaul resources that the data message set distributed for each access device calculates no more than the reserved backhaul money During source, treated using the data message set that this is the distribution of each access device as the target of corresponding access device data cached Information aggregate.
  23. 23. controller as claimed in claim 22, it is characterised in that the processing unit, sends to each access device When increasing spatial cache request, it is specifically used for：
    Minimal cache capacity according to needed for the reserved backhaul resources determine each access device, and control the transmitting element The increase spatial cache comprising the minimal cache capacity needed for the access device is sent to each access device to ask；Or
    The capacity being determined as needed for the corresponding data acquisition system of data message set of each access device distribution and corresponding access The capacity difference of the current residual buffer memory capacity of equipment, and control the transmitting element to be sent to each access device and connect comprising this Enter the increase spatial cache request of place capacity difference.
  24. 24. the controller as described in claim 22 or 23, it is characterised in that the processing unit, sets according to each access Standby increase spatial cache response, when determining the current residual buffer memory capacity of each access device, is specifically used for：
    Responded according to the increase spatial cache of any of the multiple access device access device, determine the access device Current residual buffer memory capacity, including：
    The current residual buffer memory capacity of the access device included during the increase spatial cache of the access device is responded is true It is set to the current residual buffer memory capacity of the access device.
  25. 25. such as claim 18-24 any one of them controllers, it is characterised in that the transmitting element, is additionally operable to：
    The target distributed for other access devices is treated that data cached information aggregate is sent to corresponding access device, wherein, institute It is the access device in the multiple access device in addition to first access device to state other access devices；And
    The object transmission pattern of each target terminal equipment and object transmission resource are sent to the target of the target terminal equipment Access device in transmission mode.
  26. 26. such as claim 18-25 any one of them controllers, it is characterised in that the processing unit, list is sent described After the target distributed for each access device is treated that data cached information aggregate is sent to corresponding access device by member, also use In：
    The network connection that the 3rd access device in the receiving unit receives the multiple access device returns is created as After work(message, the target for initiating to send the 3rd access device to the 3rd access device treats data cached information aggregate pair The target answered treats the flow of data cached set；Or
    The network connection that the 4th access device in the receiving unit receives the multiple access device returns, which is established, loses After losing message, the network connection release flow for the 4th access device is initiated.
  27. A kind of 27. first access device, it is characterised in that including：
    Transmitting element, for sending data request information to controller, wherein, the data request information includes currently having accessed The information for the data that the target terminal device request of first access device is downloaded；
    Receiving unit, receives the controller that the controller is sent and waits to cache for the target of first access device distribution Data message set, wherein, the target, which is treated to include in data cached information aggregate, has currently accessed first access device The information of data downloaded of target terminal device request, and comprising currently having accessed at least one second access device extremely The information for the data that a few target terminal device request is downloaded.
  28. 28. the first access device as claimed in claim 27, it is characterised in that the transmitting element, is additionally operable to：
    Buffer status information is sent to the controller, the residue that the buffer status information includes first access device is delayed Deposit capacity and data cached set；
    The target of first access device treats the caching shape for not including first access device in data cached information aggregate Data cached set in state information, and the target treats that the corresponding target of data cached information aggregate treats data cached set institute The capacity needed is not more than the residual caching capacity of first access device.
  29. 29. the first access device as described in claim 27 or 28, it is characterised in that the receiving unit, described in reception Before the controller that controller is sent treats data cached information aggregate for the target of first access device distribution, also use In：
    Receive the increase spatial cache request that the controller is sent；
    First access device, further includes：
    Processing unit, for according to the increase spatial cache request, performing increase own cache space；
    When increasing the success of own cache space, determine current residual buffer memory capacity, control the transmitting element to the control Device sends the increase spatial cache comprising current cache residual caching capacity and responds.
  30. 30. the first access device as claimed in claim 29, it is characterised in that the processing unit, according to the increase Spatial cache is asked, and when performing increase own cache space, is specifically used for：
    Minimal cache capacity or appearance according to needed for first access device included in the increase spatial cache request Difference is measured, deletes the data being locally stored.
  31. 31. such as claim 27-30 the first access devices of any one of them, it is characterised in that the receiving unit, is also used In：
    The object transmission pattern and object transmission resource at least one target terminal equipment that the controller is sent are received, its In, first access device is included in the object transmission pattern of at least one target terminal equipment.
  32. 32. such as claim 27-31 the first access devices of any one of them, it is characterised in that
    The processing unit, the controller for being additionally operable to receive the controller transmission in the receiving unit is described first After the target of access device distribution treats data cached set, at least one target end with having accessed first access device End equipment establishes network connection；
    The transmitting element, is additionally operable to be created as when the processing unit is connected with least one target terminal device network During work(, send network connection to the controller and be successfully established message；And
    When the processing unit is connected foundation failure with least one target terminal device network, sent out to the controller Failed message is established in SCN Space Cable Network connection.
CN201610891322.9A 2016-10-12 2016-10-12 A kind of data cached collocation method and device Pending CN107943716A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110460902A (en) * 2018-05-08 2019-11-15 腾讯科技（深圳）有限公司 Playing method and device, storage medium, the electronic device of media information

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110460902A (en) * 2018-05-08 2019-11-15 腾讯科技（深圳）有限公司 Playing method and device, storage medium, the electronic device of media information

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