WO2014177010A1 - 一种数据传输的方法、装置及系统 - Google Patents
一种数据传输的方法、装置及系统 Download PDFInfo
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- WO2014177010A1 WO2014177010A1 PCT/CN2014/076098 CN2014076098W WO2014177010A1 WO 2014177010 A1 WO2014177010 A1 WO 2014177010A1 CN 2014076098 W CN2014076098 W CN 2014076098W WO 2014177010 A1 WO2014177010 A1 WO 2014177010A1
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- matching data
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- 238000000034 method Methods 0.000 title claims abstract description 56
- 230000005540 biological transmission Effects 0.000 title claims abstract description 55
- 241000854291 Dianthus carthusianorum Species 0.000 claims description 116
- 238000012545 processing Methods 0.000 claims description 81
- 230000004044 response Effects 0.000 claims description 42
- 238000012544 monitoring process Methods 0.000 claims description 2
- 238000004891 communication Methods 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 17
- 238000007726 management method Methods 0.000 description 10
- 238000013500 data storage Methods 0.000 description 2
- 238000010295 mobile communication Methods 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 238000001514 detection method Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000013507 mapping Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W76/00—Connection management
- H04W76/10—Connection setup
- H04W76/11—Allocation or use of connection identifiers
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- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
- H04L65/1066—Session management
- H04L65/1069—Session establishment or de-establishment
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- H—ELECTRICITY
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- H04L65/60—Network streaming of media packets
- H04L65/61—Network streaming of media packets for supporting one-way streaming services, e.g. Internet radio
- H04L65/612—Network streaming of media packets for supporting one-way streaming services, e.g. Internet radio for unicast
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- H—ELECTRICITY
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- H04L65/80—Responding to QoS
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- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/10—Protocols in which an application is distributed across nodes in the network
- H04L67/104—Peer-to-peer [P2P] networks
- H04L67/1061—Peer-to-peer [P2P] networks using node-based peer discovery mechanisms
- H04L67/1063—Discovery through centralising entities
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- H04L67/01—Protocols
- H04L67/10—Protocols in which an application is distributed across nodes in the network
- H04L67/104—Peer-to-peer [P2P] networks
- H04L67/1087—Peer-to-peer [P2P] networks using cross-functional networking aspects
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- H04W4/18—Information format or content conversion, e.g. adaptation by the network of the transmitted or received information for the purpose of wireless delivery to users or terminals
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Definitions
- the present invention relates to the field of communications, and in particular, to a method, device and system for data transmission. Background technique
- I P I nt erne t Pro t oco l , Internet Protocol
- HTTP HyperText Transfer Protocol
- the encoding mode of the video content is adjusted according to the state of the channel. If the channel is good, the video content of the higher data rate is transmitted, and if the channel condition is poor, the video content of the lower data rate is transmitted.
- the video server needs to send the same video content to the terminals of different users, and the transmitted video content will repeatedly occupy the core.
- the network bandwidth, the waste reduction of the core network bandwidth is not obvious.
- Embodiments of the present invention provide a method, an apparatus, and a system for data transmission, which are used to reduce the occupation of bandwidth resources of a core network by data transmission.
- the embodiment of the present invention provides a data transmission method, including: receiving, by a first base station, a request message sent by a first device; the request message carrying identifier information of request data and the first device Identification information, the first device includes a user equipment or a second base station; the first base station performs retrieval according to the identification information of the request data in the stored data; when the first base station retrieves matching data, Sending the matching data to the first device according to the identifier information of the first device, where the matching data refers to data that matches the identification information of the request data.
- the method further includes: when the first base station does not retrieve the matching data, and the first base station is not a cluster head, The request message is sent to the packet data gateway via the mobility management entity, such that the packet data gateway sends the request message to the third base station as a cluster head, so that the third base station determines according to the identification information of the request data.
- a first storage device storing the matching data, and transmitting the identification information of the first storage device to the first base station; the first base station receiving the identification information of the first storage device; Sending, by the base station, the request message to the first storage device according to the identifier information of the first storage device, so that after the first storage device receives the request message, the first storage device stores the information in the request message.
- the matching data that matches the identification information of the request data is sent to the first base station; the first base station receives the matching data sent by the first storage device; and sends the matching data to the First device.
- the method further includes: when the first base station does not retrieve the matching data, and the first base station is a cluster head, the first Determining, by the base station, the second storage device that stores the matching data according to the identifier information of the request data, and acquiring the identifier information of the second storage device; the first base station according to the identifier information of the second storage device Sending the request message to the second storage device, so that the second storage device acquires the matching data according to the identification information of the request data, and sends the matching data to the first base station; The first base station receives the matching data sent by the second storage device; the first base station sends the matching data to the first device.
- the method further includes: when the first base station does not retrieve the matching data, and the first base station is a cluster head, the first Determining, by the base station, the third storage device that stores the matching data that matches the identification information of the request data, and acquiring the identification information of the third storage device according to the identifier information of the request data; The base station sends the identifier information of the third storage device to the first device, so that the first device acquires the matching data from the third storage device according to the identifier information of the third storage device. .
- the method further includes: determining, by the first base station, the number of times the request message is received; Get the allowed copy in the cluster when the number of request messages is greater than the first threshold The maximum number of copies of the matching data, and the number of times the matching data has been stored in the cluster; the number of times the first base station has stored the matching data in the cluster is smaller than the maximum number of copies of the matching data allowed in the cluster And storing the matching data, and updating the number of times the matching data has been stored in the cluster.
- the first base station acquires a maximum copy number of the matching data allowed in the cluster, and the matching data is already stored in the cluster
- the number of times includes: if the first base station is not a cluster head, the first base station acquires, by using a cluster head, a maximum copy number of the matching data allowed in the cluster, and a number of times the matching data has been stored in the cluster; After the first base station updates the number of times the matching data has been stored in the cluster, the method further includes: sending, by the first base station, the number of times the matching data has been stored in the updated cluster to the cluster head. So that the cluster head updates the number of times the matching data has been stored in the cluster.
- the storing, by the first base station, the matching data includes: Determining, by the first base station, that the size of the free storage space is greater than the size of the matching data; if the size of the free storage space is greater than the size of the matching data, the first base station directly stores the matching data; The size of the free storage space is not greater than the size of the matching data, and the first base station updates the free storage space according to a least recently used algorithm, and stores the matching data to the updated free storage space.
- the data transmission method of the embodiment of the present invention includes: the user equipment sends a request message to the first base station, where the request message carries the identifier information of the request data and the identifier information of the user equipment. So that the first base station retrieves data that has been stored by the first base station according to the identification information of the request data, and if it is found that the first base station stores matching data, the first base station directly The matching data is sent to the user equipment; the matching data refers to data that matches the identification information of the request data; the user equipment receives a response message of the request message sent by the first base station, and According to the response message #, the corresponding processing is performed.
- the response message includes the matching data
- the user equipment receives a response message of the request message sent by the first base station, and according to the response message
- the corresponding processing includes: the user equipment receiving the first base station
- the matching data is sent, and corresponding processing is performed according to the matching data.
- the response message of the request message includes the identifier information of the third storage device that stores the matching data
- the user equipment receives the information sent by the first base station.
- the response message of the request message, and the corresponding processing according to the response message includes: the user equipment receiving the identifier information of the third storage device that is sent by the first base station and storing the matching data;
- the user equipment acquires the matching data from the third storage device according to the identifier information of the third storage device.
- the method further includes: determining, by the user equipment, the number of times the request message is sent to the first base station; and determining, by the user equipment, the sending to the first base station
- the number of times the request message is greater than the first threshold, the maximum number of copies of the matching data allowed in the cluster is obtained from the cluster head, and the number of times the matching data has been stored in the cluster; if the matching is already stored in the cluster
- the number of times of the data is smaller than the maximum number of copies of the matching data allowed in the cluster, and the user equipment stores the matching data, and updates the number of times the matching data has been stored in the cluster; the user equipment will update the intra-cluster
- the number of times the matching data has been stored is sent to the cluster head such that the cluster head updates the number of times the matching data has been stored in the cluster.
- the embodiment of the present invention provides a base station, including: a transceiver unit, configured to receive a request message sent by a first device, where the request message carries identifier information of the request data and an identifier of the first device Information, the first device includes a user equipment or a second base station; a retrieval unit, configured to perform, in the stored data, according to the identification information of the request data received by the transceiver unit; and a processing unit, configured to When the search unit retrieves the matching data, the sending and receiving unit is configured to send the matching data to the first device according to the identifier information of the first device, where the matching data refers to an identifier of the request data. Information that matches the data.
- the processing unit is further configured to: when the searching unit does not retrieve the matching data, and when the base station is not a cluster head, trigger the sending and receiving unit Sending the request message to a packet data gateway via a mobility management entity, such that the packet data gateway sends the request message to a third base station that is a cluster head so that Determining, by the third base station, the first storage device that stores the matching data according to the identifier information of the request data, and sending the identifier information of the first storage device to the first base station; And receiving the identifier information of the first storage device, where the transceiver unit is further configured to send the request message to the first storage device according to the identifier information of the first storage device, so that the After receiving the request message, the storage device sends the stored matching data that matches the identification information of the request data in the request message to the base station; the transceiver unit is further configured to receive the Matching data sent by the first storage device; and transmitting the matching data to the first device
- the processing unit is further configured to: when the searching unit does not retrieve the matching data, and the base station is a cluster head, according to the request data
- the identification information is determined by the second storage device storing the matching data, and the identification information of the second storage device is obtained; the transceiver unit is further configured to be used according to the second storage device acquired by the processing unit
- the identification information is sent to the second storage device, so that the second storage device acquires the matching data according to the identification information of the request data, and sends the matching data to the base station.
- the transceiver unit is further configured to receive the matching data sent by the second storage device, and the transceiver unit is further configured to send the matching data to the first device.
- the processing unit is further configured to: when the searching unit does not retrieve the matching data, and the base station is a cluster head, according to the request data
- the identification information determines a third storage device that stores the matching data that matches the identification information of the request data, and acquires identification information of the third storage device;
- the transceiver unit is further configured to use the processing unit
- the obtained identification information of the third storage device is sent to the first device, so that the first device acquires the matching data from the third storage device according to the identification information of the third storage device. .
- the fourth possible implementation manner further includes a determining unit, configured to determine a number of times the request message is received; the processing unit is further configured to: when determining that the number of times the request message is received is greater than a first threshold, acquiring an allowed copy in the cluster The maximum number of copies of the matching data, and the number of times the matching data has been stored in the cluster; the processing unit is further configured to use the number of times the matching data has been stored in the cluster When the maximum number of copies of the matching data is allowed to be copied within the cluster, the matching data is stored, and the number of times the matching data has been stored in the cluster is updated.
- the processing unit is further configured to: when the base station is not a cluster head, obtain an intra-cluster allowable copy by using a cluster head The maximum number of copies of the matching data, and the number of times the matching data has been stored in the cluster; the transceiver unit is further configured to send the number of times the matching data has been stored in the cluster updated by the processing unit to the cluster a header such that the cluster head updates the number of times the matching data has been stored in the cluster.
- the determining unit is further configured to determine a size of the free storage space. Whether the size is greater than the size of the matching data; the processing unit is further configured to directly store the matching data when the determining unit determines that the size of the free storage space is greater than the size of the matching data; When the determining unit determines that the size of the free storage space is not greater than the size of the matching data, the free storage space is updated according to a least recently used algorithm, and the matching data is stored to the updated free storage space.
- an embodiment of the present invention provides a user equipment, including: a transceiver unit, configured to send a request message to a first base station, where the request message carries identifier information of request data and the user equipment Identifying information, such that the first base station retrieves data stored by the first base station according to the identification information of the request data, and if the first base station stores the matching data, the first base station directly Sending the matching data to the user equipment; the matching data refers to data that matches the identification information of the request data; the transceiver unit is further configured to receive the data sent by the first base station a response message of the request message; a processing unit, configured to perform corresponding processing according to the response message received by the transceiver unit.
- the response message includes the matching data
- the transceiver unit is configured to: receive the matching data sent by the first base station; And configured to perform corresponding processing according to the matching data received by the transceiver unit.
- the response message includes the identifier information of the third storage device that stores the matching data
- the transceiver unit is configured to receive the first base station to send Identification letter of the third storage device storing the matching data
- the processing unit is configured to acquire the matching data from the third storage device according to the identifier information of the third storage device received by the transceiver unit.
- the method further includes: determining, The number of times the request message is sent to the first base station; the processing unit is further configured to: when determining that the number of times the request message sent to the first base station is greater than a first threshold, Obtaining, in the cluster head, a maximum number of copies of the matching data in the cluster, and a number of times the matching data has been stored in the cluster; the processing unit is further configured to: the number of times the matching data has been stored in the cluster is smaller than the cluster If the maximum number of copies of the matching data is allowed to be copied, the matching data is stored, and the number of times the matching data has been stored in the cluster is updated; the transceiver unit is further configured to update the cluster of the processing unit. The number of times the matching data has been stored is sent to the cluster head such that the cluster head updates the number of times the matching data has been stored in the cluster.
- the embodiment of the present invention provides a data transmission system, including: a mobility management entity, a packet data gateway, at least one base station, and at least one user equipment; wherein, the base station is the base station described in the foregoing embodiment; The user equipment is the user equipment described in the foregoing embodiment.
- An embodiment of the present invention provides a data transmission method, apparatus, and system. After receiving a request message sent by a first device, the first base station retrieves the stored data according to the identification information of the request data in the request message. If there is matching data in a base station, the first base station directly sends the matching data to the first device. In this way, the data is stored on the base station side, so that when the different user equipments served by the base station request the same data, the base station can send the matching data to different user equipments without sending a request message to the network side, without establishing the network side.
- the same link sends the same data information to different user equipments, thereby reducing the occupation of the core network bandwidth resources by the data transmission, and directly transmitting from the base station side to the user equipment, thereby reducing the waiting time of the user equipment, thereby improving The user experience.
- FIG. 1 is a schematic diagram of a method for data transmission according to an embodiment of the present invention
- FIG. 2 is a schematic diagram of another method for data transmission according to an embodiment of the present invention
- FIG. 3 is a schematic diagram of another method for data transmission according to an embodiment of the present invention
- FIG. 5 is a schematic diagram of another method for data transmission according to an embodiment of the present invention
- FIG. 6 is a schematic diagram of another method for data transmission according to an embodiment of the present invention
- FIG. 8 is a schematic structural diagram of another network structure for data transmission according to an embodiment of the present invention
- FIG. 9 is a schematic diagram of a method for data storage according to an embodiment of the present invention.
- FIG. 10 is a schematic diagram of another method for data storage according to an embodiment of the present invention.
- FIG. 1 is a schematic structural diagram of a base station according to an embodiment of the present invention.
- FIG. 12 is a schematic structural diagram of another base station according to an embodiment of the present disclosure.
- FIG. 13 is a schematic structural diagram of another base station according to an embodiment of the present disclosure.
- FIG. 14 is a schematic structural diagram of a user equipment according to an embodiment of the present disclosure.
- Figure 15 is a schematic structural diagram of another user equipment according to an embodiment of the present invention
- Figure 16 is a schematic structural diagram of another base station according to an embodiment of the present invention
- FIG. 1 is a schematic structural diagram of another user equipment according to an embodiment of the present invention
- FIG. 18 is a schematic structural diagram of a system for data transmission according to an embodiment of the present invention. detailed description
- An embodiment of the present invention provides a data transmission method, as shown in FIG. 1 , including: 1 01.
- the first base station receives the request message sent by the first device.
- the request message carries the identifier information of the request data and the identifier information of the first device.
- the first device includes a UE (US e r Equ i pmen t, user equipment) or a second base station.
- the request message is sent to the first base station of the UE.
- the first base station may receive the request message sent by the UE, where the first device is the UE.
- the first base station stores data. If the stored data has request data acquired by the UE, but the second base station does not store the requested data, the second base station may send a request message to the first base station, and at this time, the second The base station is the requesting base station of the first base station, where the first device is the second base station.
- first base station and the first device are in one cluster.
- the first device in the same cluster can access the data stored by the first base station.
- the cluster is composed of at least one base station storing data and UEs serving the same.
- the first base station performs retrieval in the stored data according to the identification information of the request data.
- data is stored in the first base station.
- the first base station retrieves the stored data according to the identification information of the request data in the request message, that is, the first base station according to the request data.
- the identification information is used to check whether the identification information of the stored data is the same as the identification information of the requested data. If they are the same, it indicates that the corresponding data is stored in the first base station. If not, the corresponding data is not stored in the first base station. .
- the first base station may use the following method to store data: After the first base station receives a request message, the first base station first determines the number of times the request message is received, that is, the first base station periodically receives the request. ; the number of times. The first base station determines whether the acquired number of times the request message is received is greater than a first threshold. And determining, by the first base station, that the number of times the received request message is greater than the first threshold, obtaining a maximum copy number of the matching data allowed in the cluster, and a number of times the matching data has been stored in the cluster; The number of times the first base station has stored the matching data in the cluster is smaller than the maximum allowed in the cluster to copy the matching data.
- the matching data is stored, and the number of times the matching data has been stored in the cluster is updated.
- the data stored in the first base station may store the complete data content, or may store part of the data content, which is not limited by the present invention.
- the video request message carries the identification information of the requested video, such as the ID of the video (I dent i ty ) ).
- the first base station After receiving the video request message, the first base station searches for the stored video information according to the identification information of the requested video in the video request message.
- the first base station When the first base station retrieves the matching data, the first base station sends the matching data to the first device according to the identifier information of the first device.
- the matching data refers to data that matches the identification information of the request data.
- the first base station retrieves the stored data according to the identification information of the request data in the request message, and if the matching data is retrieved, sends the matching data to the first device. That is to say, in step 101, if the first base station receives the request message sent by the UE, the matching data is sent to the UE. If the first base station receives the request message sent by the second base station, the matching data is sent to the second base station.
- the embodiment of the present invention provides a data transmission method. After receiving the request message sent by the first device, the first base station retrieves the stored data according to the identification information of the request data in the request message, if the first base station has Matching the data, the base station directly sends the matching data to the first device. In this way, when the data is stored on the base station side, when the different user equipments served by the base station are requesting the same data, the base station can send the matching data to different user equipments without sending a request message to the network side, without establishing the network side.
- the same link sends the same data information to different user equipments, thereby reducing the occupation of the core network bandwidth resources by the data transmission, and directly transmitting from the base station side to the user equipment, thereby reducing the waiting time of the user equipment, thereby improving The user experience.
- An embodiment of the present invention provides a data transmission method, as shown in FIG. 2, including:
- the user equipment sends a request message to the first base station.
- the request message carries the identifier information of the request data and the identifier information of the user equipment, so that the first base station retrieves the data stored by the first base station according to the identifier information of the request data, If it is found that the first base station stores the matching data, the first base station directly sends the matching data to the user equipment.
- the matching data refers to data that matches the identification information of the request data. Specifically, when the user equipment sends the request message to the first base station, the identifier information of the data information to be acquired is added to the request message and sent to the first base station.
- the user equipment receives the response message of the request message sent by the first base station, and the corresponding response message is processed.
- the response message sent by the first base station includes the matching data
- the user equipment receives the matching data sent by the first base station, and performs corresponding processing according to the matching data.
- the response message of the request message includes identification information of a third storage device storing the matching data.
- the user equipment receives the identifier information of the third storage device that is stored by the first base station and stores the matching data.
- the user equipment acquires the matching data from the third storage device according to the identifier information of the third storage device.
- An embodiment of the present invention provides a data transmission method, where a user equipment sends a request message to a first base station, so that after receiving the request message sent by the user equipment, the first base station searches according to the identifier information of the request data in the request message.
- the data stored in the first base station if the matching data is stored in the first base station, the first base station directly sends the matching data to the user equipment.
- the data information is stored on the base station side, so that when the different user equipments served by the base station request the same data, the base station can send the matching data to different user equipments without sending a request message to the network side, without establishing the network side.
- a plurality of identical links send the same data information to different user equipments, thereby reducing the occupation of the core network bandwidth resources by the data transmission, and directly transmitting from the base station side to the user equipment, thereby reducing the waiting time of the user equipment, thereby reducing the waiting time of the user equipment. Improve the user experience.
- An embodiment of the present invention provides a data transmission method, including:
- the UE sends an RRC (radio resource control) link setup request message to the first base station, so that the first base station establishes an RRC link with the UE.
- the first base station receives an RRC Link Setup Request message sent by the UE.
- the UE when the UE accesses the first base station for the first time, the UE needs to send an RRC link setup request message to the first base station, so as to establish an RRC link between the UE and the first base station, so that the UE sends the RRC link to the first base station. data.
- the first base station establishes with the UE according to the RRC link setup request message. Between the RRC links.
- the first base station After receiving the RRC link setup request message, the first base station establishes an RRC link according to the RRC link setup request message.
- the process of establishing the RRC link between the first base station and the UE by the first base station is the same as that of the prior art, and details are not described herein again.
- the UE sends a PDN link setup request message carrying the PDN (Packet Data Network) address information to the MME (Mobility Management Entity), so that the MME establishes the request message according to the PDN link.
- the carried PDN address information establishes a bearer link established by the UE and a PDN GW (Packet Data Network Gateway).
- the MME receives the PDN link setup request message carrying the PDN address information.
- the MME establishes a bearer link established by the UE and the PDN GW according to the PDN address information carried in the PDN link setup request message.
- the method for establishing the bearer link established by the UE and the PDN GW according to the address information of the PDN is the same as that of the prior art, and details are not described herein.
- the first device sends a request message to the first base station, where the first base station receives the request message sent by the first device.
- the UE may send a request message to the first base station, and may refer to step 201, and details are not described herein.
- the first device is the second base station
- the second base station sends a request message to the first base station, which may be referred to in step 3081c, and details are not described herein again.
- the first base station to receive the request message sent by the first device, refer to step 101, and details are not described herein again.
- the first base station performs, according to the identifier information of the request data, in the stored data.
- step 102 it is the same as step 102, and details are not described herein again.
- steps 307a-308a are performed. As shown in Figure 3. If the data matching the identification information of the request data is not retrieved, that is, if the matching data is not retrieved, the first base station needs to acquire information related to the matching data. If the first base station is not a cluster head, then Execution step Steps 307b_314b, 315-318 are as shown in FIG. 4, and the first device is the UE at this time.
- the first base station may learn the storage device that stores the matching data. At this time, the first base station may acquire the matching data by itself and send the matching data to the first device, or may store the matching.
- the identification information of the storage device of the data is sent to the first device, and the first device obtains the matching data according to the identification information of the storage device. If the first base station acquires the matching data and sends the data to the first device, steps 3071c-3111c, 315-322 are performed, as shown in FIG. 5. If the first base station sends the identification information of the storage device to the first device, steps 3072c-3092c, 315-322 are performed, as shown in FIG. 6.
- the cluster head is a base station in the cluster that manages other devices.
- the cluster in which the first base station is located may be composed of the first base station, other neighboring base stations, and UEs served by them.
- the cluster head may be the first base station or other neighboring base stations.
- the cluster in which the first base station is located may also be composed of the first base station and the UE.
- the first base station is a cluster head.
- step 103 it is the same as step 103, and details are not described herein again.
- the first base station when the first base station does not retrieve the matching data, and the first base station is not a cluster head, send the request message to a PDN GW via an MME, so that the PDN GW sends the request message.
- the first base station when the first base station does not retrieve the matching data, the first base station does not store the data that the first device needs to acquire. In this case, in a case where the first base station is not a cluster head, the first base station needs to The received request information sent by the first device is sent to the MME. The MME receives the request message.
- the first base station determines, according to the identification information of the request data, a second storage that stores matching data. The device, and obtains identification information of the second storage device.
- the first base station does not retrieve the matching data, and the first base station does not store the data that needs to be acquired by the first device.
- the first base station may identify the data according to the request. Information to find data stored in each device in the stored cluster Identification information.
- a second storage device that finds that the identification information of the stored data matches the identification information of the requested data. The identifier information of the second storage device is obtained.
- the first base station when the first base station is a cluster head, the first base station may receive a request message sent by another base station in the cluster, where the first device may be the second base station. At this time, the first base station may search for the identification information of the data stored by each device in the stored cluster according to the identification information of the request data in the request. The storage device that matches the identification information of the stored data with the identification information of the request data in the request message is found, and the identification information of the storage device is obtained.
- the first base station determines, according to the identifier information of the request data, that the data is stored with the request data. Identifying, by the third storage device, the matching data that matches the information, and acquiring the identification information of the third storage device.
- step 3071c For details, refer to step 3071c, and details are not described herein again.
- the first device receives the matching data, and performs corresponding processing.
- the first device is a UE
- the second base station After receiving the matching data, the second base station sends the matching data to the UE that requests the matching data. And determining whether the matching data needs to be stored. If the matching data needs to be stored, the second base station stores the matching data. For specific determination of whether the matching data needs to be stored, refer to steps 319-322, and details are not described herein.
- the MME sends the received request message to the PDN GW, and the PDN GW receives the request message.
- the MME determines, according to the identifier information of the UE carried in the request message, the PDN GW corresponding to the UE that sends the request message, and sends the request message to the PDN GW.
- the first base station sends a request message to the second storage device according to the identifier information of the second storage device, so that the second storage device obtains matching data according to the identifier information of the request data, and Transmitting the matching data to the first base station.
- the first base station after acquiring the identifier information of the second storage device, the first base station sends a request message to the second storage device according to the identifier information of the second storage device.
- the second storage device is a neighboring base station of the first base station.
- the first base station sends the identifier information of the third storage device to the first a device, such that the first device acquires the matching data from the third storage device according to the identification information of the third storage device.
- the first base station After acquiring the identifier information of the third storage device, the first base station sends the identifier information of the third storage device to the first device, so that the first device itself communicates with the third storage device to obtain matching data, as shown in the figure. 7 is shown.
- the PDN GW sends the request message to a third base station that is a cluster head.
- the third base station receives the request cancellation, 3 ⁇ 4.
- the PDN GW after receiving the request message, the PDN GW sends the request message to the cluster head of the cluster where the first base station is located.
- the cluster head of the cluster where the first base station is located is configured in advance, and the PDN GW records the member information of each cluster after the cluster head configuration of the cluster where the first base station is located is completed.
- the second storage device retrieves the stored data according to the identifier information of the request data carried in the request message, and sends the retrieved matching data to the first base station.
- the second storage device searches in the stored data according to the identifier information of the request data carried in the request message, and performs the same search as the identifier information of the request data in the stored data in the first base station, and may refer to the step. 1 02, no longer repeat here.
- the first device receives the response message of the request message sent by the first base station, and performs corresponding processing according to the response message of the request message.
- the UE When the first device is a UE, the UE receives the response message of the request message sent by the first base station, and performs corresponding processing according to the response message of the request message.
- the UE receives the identifier information of the third storage device that is sent by the first base station and stores the matching data.
- the UE acquires the matching data from the third storage device according to the identifier information of the third storage device. And the UE continues to perform steps 31 5-31.
- the UE receives the identifier information of the third storage device that stores the matching data that is sent by the first base station, and the UE establishes a D2D with the third storage device according to the identifier information of the third storage device (Dev i ce- t o -Dev i ce , peer-to-peer) link. And the UE acquires the matching data by using the D2D link.
- the identifier information of the third storage device is identifier information of the UE that stores the matching data.
- the first device may pass The first base station establishes a D2 D link with the third storage device.
- the first device may directly establish a D2D link with the third storage device according to the identifier information of the third storage device, without passing through the first base station.
- the invention is not limited thereto.
- the second base station receives the response message of the request message sent by the first base station, and performs corresponding processing according to the response message of the request message.
- the second base station receives the identifier information of the third storage device that is sent by the first base station and stores the matching data.
- the second base station acquires the matching data from the third storage device according to the identification information of the third storage device, and sends the obtained matching data to the UE that requests the matching data. And determining whether the matching data needs to be stored. If the matching data needs to be stored, the second base station stores the matching data. If the matching data needs to be stored, refer to step 31 9-322, and details are not described herein.
- the third base station determines, according to the request data identification information, the first storage device that stores the matching data, and sends the identifier information of the first storage device to the first base station.
- the first base station receives the identification information of the first storage device.
- the third base station which is the cluster head, searches for the identification information of the data stored by each device in the stored cluster according to the identification information of the request data in the request message.
- the first storage device that matches the identification information of the stored data with the identification information of the request data in the request message is found. And transmitting the identification information of the first storage device to the first base station.
- the third base station After receiving the request message, the third base station, which is the cluster head, may first search for the stored data according to the identification information of the request data in the request message. If the matching data is found, the matching data is directly sent to the first base station. . If no matching data is found, it indicates that the third base station does not store the data required by the first base station, and then continues to search for the identification information of the data stored in each device in the stored cluster. And determining, according to the identification information of the request data in the request message, the first storage device storing the matching data, and sending the identifier information of the first storage device to the first base station. At this time, the first storage device does not include the third base station.
- the third base station may directly search for the identifier information of the data stored in each device in the stored cluster according to the identifier information of the request data in the request message. And determining, according to the identification information of the request data in the request message, the first storage device storing the matching data, and sending the identifier information of the first storage device to the first base Station.
- the first storage device may be a third base station.
- the third base station may store the identification information of the data stored by each device in the cluster in the form of a list.
- the third base station may store the identification information of the data stored in each device in the cluster, such as a mapping table, in other forms, which is not limited by the present invention.
- the third base station as the cluster head determines that only one of the clusters stores the first storage device with the matching data, the identifier information of the first storage device is sent to the first base station. If the third base station as the cluster head determines that there are at least two first storage devices in the cluster in which the matching data is stored, the third base station may select one of the at least two first storage devices storing the matching data, The identification information of the selected first storage device is sent to the first base station. The third base station may select the first storage device that stores the matching data according to the preset algorithm, and send the identifier information of the first storage device to the first base station.
- the cluster in which the first base station is located is composed of the first base station, the neighboring base station, and the UEs it serves.
- the first storage device may be other neighboring base stations. .
- the first base station receives the matching data sent by the second storage device; and sends the matching data to the first device.
- the first base station sends the acquired matching data to the UE, and if the request message received by the first base station is sent by the second base station, the first base station is sent.
- the acquired matching data is sent to the second base station, as shown in FIG.
- the first base station sends the request message to the first storage device according to the identifier information of the first storage device, so that after the first storage device receives the request message, the first storage device stores the request message.
- the matching data that matches the identification information of the request data in the request message is sent to the first base station.
- the first storage device receives the request message.
- the first base station after receiving the identifier information of the first storage device, the first base station sends a request message to the first storage device according to the identifier information of the first storage device, and may refer to step 3081c, and details are not described herein again.
- the first device receives the matching data sent by the first base station, and performs corresponding processing. Specifically, if the first device is the second base station, the second base station may send the received matching data to the UE that requests the matching data, and determine whether the matching needs to be stored. For the data, if the matching data needs to be stored, the second base station stores the matching data. For details of whether the matching data needs to be stored, refer to Step 31 9-322, and details are not described herein.
- the UE may perform corresponding processing according to the received matching data, and the UE continues to perform steps 31 5 - 16.
- the first storage device retrieves the stored data according to the identification information of the request data carried in the request message, and retrieves the stored identification information of the requested data in the request message.
- the matched matching data is sent to the first base station.
- the first storage device searches, according to the identifier information of the request data carried in the request message, in the stored data, and searches with the first base station in the stored data according to the identifier information of the request data carried in the request message. For the same, refer to step 1 02, and details are not described herein again.
- the first base station receives the matching data sent by the first storage device, and sends the matching data to the first device.
- the request message received by the first base station is sent by the first device, and the matching data that is obtained by the first base station is sent to the first device, and reference may be made to step 31 01 c.
- the first device is a UE, reference may be made to FIG. 8.
- the first device receives the matching data and performs corresponding processing.
- the first device is a UE, and the UE receives the matching data sent by the first base station, and performs corresponding processing according to the matching data.
- the UE determines whether the matching data corresponding to the received request message needs to be stored. Specifically, the UE determines the number of times the request message is sent to the first base station. And detecting whether the number of times the request message sent to the first base station is greater than a first threshold. When the number of times the request message sent by the first base station is greater than the first threshold, the UE obtains, from the cluster head, the maximum copy number of the matching data allowed in the cluster, and the intra-cluster The number of times the matching data has been stored. If the number of times the matching data has been stored in the cluster is less than the maximum number of copies of the matching data allowed in the cluster, the UE determines that the matching data needs to be stored.
- the cluster head is the first base station, and the UE obtains the allowed copy in the cluster from the cluster head when determining that the number of the request messages sent to the first base station is greater than the first threshold.
- the maximum number of copies of the matching data, and the number of times the matching data has been stored in the cluster Includes:
- the UE obtains, from the first base station, a maximum copy number of the matching data allowed in the cluster, and The number of times the matching data has been stored in the cluster.
- the UE collects the number of times the request message is sent to the first base station, and compares the counted times of sending the request message to the first base station with the first threshold. If the number of times the statistic sends the request message to the first base station is greater than the first threshold, the UE needs to obtain the matching data, and the UE needs to store the matching data corresponding to the received request message. At this time, the UE acquires, from the first base station, the maximum number of copies of the matching data allowed in the cluster, and the number of times the matching data has been stored in the cluster. The UE compares the maximum number of copies of the matching data in the cluster, and the number of times the matching data has been stored in the cluster.
- the matching is already stored in the cluster. The number of times of the data, the UE determines that the matching data corresponding to the request message can be stored. If the maximum number of copies of the matching data allowed in the cluster is not greater than the number of times the matching data has been stored in the cluster, the matching data corresponding to the request message stored in the cluster has reached a maximum value.
- the matching data corresponding to the storage request message is as shown in FIG. 9.
- the UE determines that the matching data corresponding to the received request message needs to be stored, the matching data corresponding to the received request message is stored.
- the UE when determining that the matching data corresponding to the request message is to be stored, stores the matching data corresponding to the request message in the free storage space of the UE.
- the UE stores the matching data received and updates the number of times the matching data has been stored in the cluster.
- the UE sends the number of times the matched data has been stored in the updated cluster to the cluster head, so that the cluster head updates the number of times the matching data has been stored in the cluster.
- the first base station is a cluster head, so the UE may send the number of times the updated data has been stored in the updated cluster to the first base station, so that the first base station updates the cluster to store the matching data. frequency.
- the first base station determines whether the matching information corresponding to the request message sent by the UE needs to be stored.
- the first base station determines the number of times the request message is received. When it is determined that the number of times the request message is received is greater than a first threshold, obtaining an intra-cluster allowing copying The maximum number of copies of the matching data, and the number of times the matching data has been stored in the cluster.
- the first base station stores the matching data when the number of times the matching data has been stored in the cluster is less than the maximum number of copies in the cluster that allows copying of the matching data. That is, when the number of times the matching data has been stored in the cluster is less than the maximum number of copies in the cluster that allows copying of the matching data, the first base station determines to store the matching data.
- the first base station needs to count the number of times the request message is received, and compares the counted number of received request messages with the first threshold, and if the number of received request messages is statistically the same A threshold is large, indicating that the UE served by the first base station often needs to obtain the matching data, and the first base station needs to store the matching data corresponding to the request message.
- the first base station acquires the maximum number of copies of the matching data allowed in the cluster, and the number of times the matching data has been stored in the cluster.
- the first base station compares the maximum number of copies of the matching data allowed in the cluster, and the number of times the matching data has been stored in the cluster.
- the maximum number of copies of the matching data is larger than that of the cluster.
- the first base station determines that the matching data corresponding to the request message can be stored. If the maximum number of copies of the matching data allowed in the cluster is not greater than the number of times the matching data has been stored in the cluster, the matching data corresponding to the request message stored in the cluster has reached a maximum value. The base station cannot store the matching data corresponding to the request message, as shown in FIG.
- the first base station may obtain, by using a cluster head, a maximum copy number of the matching data allowed in the cluster, and a number of times the matching data has been stored in the cluster. If the first base station is the cluster head of the cluster, the first base station directly obtains the maximum number of copies of the matching data allowed in the cluster stored by itself, and the number of times the matching data has been stored in the cluster.
- the UE that is served by the first base station does not need to obtain the matching data, and the first base station does not need to store the corresponding request message. Match data.
- the request message sent by the UE to the first base station is a video request cancellation.
- the number of times the first base station needs to receive the video request message is 7 and the first threshold is 5, the first base station will count the received data request message number 7 and the first threshold. 5, the comparison, the number of times the received video request message is found to be greater than the first threshold value 5, indicating that the UE served by the first base station frequently requests the video information, then, at this time, if the first base The station is a cluster head, and the first base station directly obtains the maximum number of copies of the matching data allowed to be copied in the cluster stored by itself, and the number 4 of the matching data has been stored in the cluster.
- the first base station obtains, by using the cluster head, the maximum number of copies of the matching data allowed in the cluster is 8, and the number of times the matching data has been stored in the cluster is 4, and the stored in the cluster is detected.
- the number 4 of matching data is smaller than the maximum number of copies allowed to copy the matching data in the cluster is 8, so the first base station determines that the matching video information corresponding to the video request message can be stored.
- the first threshold is preset.
- the matching data corresponding to the request message is stored.
- the first base station determines that the matching data corresponding to the request message is to be stored, the first base station stores the matching data corresponding to the obtained request message in the free storage space of the first base station. And the first base station updates the number of times the matching data has been stored in the cluster.
- the first base station If the first base station is a cluster head of the cluster, the first base station directly updates the number of times the matching data has been stored in the cluster stored by itself.
- the first base station may send the number of times the updated data has been stored in the updated cluster to the cluster head, so that the cluster head update cluster has already been The number of times the matching data is stored.
- the first base station directly updates the number of times the matching data has been stored in the cluster stored by itself from 4 to 5.
- the first base station may update the number of times the matching data has been stored in the cluster to 5 when the matching video information is stored in the free storage space, and the cluster is already stored in the cluster.
- the number 5 of matching data is sent to the cluster head so that the cluster head updates the number of times the matching data has been stored in the cluster from 4 to 5.
- the storing, by the first base station, the matching data includes: determining, by the first base station, whether a size of the free storage space is greater than a size of the matching data. If the size of the free storage space is greater than the size of the matching data, the first base station directly stores the matching data. If the size of the free storage space is not greater than the size of the matching data, the first base station updates the free storage space according to an LRU (Lea St Re cen tly U s ed) algorithm, so that The size of the free storage space is greater than the size of the matching data, and the matching data is stored to the updated free storage space.
- LRU Long St Re cen tly U s ed
- the first base station may also directly send the request message to the cluster head of the cluster in which the cluster is located to obtain matching data corresponding to the request message.
- the second base station sends a request message to the first base station, and details are not described herein again.
- the first base station monitors a service status of the matching data that has been stored in the cluster.
- the service status includes: a service success status and a service failure status.
- the service success status refers to sending the matching data to the first device.
- the service failure status means that the matching data is not sent to the first device.
- the maximum copy number of the matching data allowed in the cluster set in the cluster is also adjusted accordingly, and the first base station serves as a cluster.
- the cluster head needs to monitor the service status of the matching data stored in the cluster.
- the data information is video information
- the intra-cluster set in the cluster is allowed to be copied.
- the maximum number of copies of the video information also needs to be adjusted accordingly.
- the first base station needs to monitor the service status of this video information.
- the first base station counts, according to the service status of the matching data, the number of service failure states of the matching data, and the number of all the requested % information received in the cluster.
- the service failure status of matching data may be caused by excessive network delay, congestion during transmission, and the like.
- the matching data is in a service failure state. Therefore, if the amount of requests for data information in a cluster becomes very large, the matching data is allowed to be copied in the clusters set in the cluster.
- the maximum copy number is also adjusted accordingly, the first base station needs to count the number of matching data in the service failure state.
- the number of all the request messages received in the statistics cluster refers to all the request messages received in the statistics cluster, and the request message sent by the first device also includes the other device received by the first base station. Request %, .
- the first base station compares the number of service failure states of the matched data by statistics. And the number of all the request messages received in the cluster.
- the first base station counts the number of service failure states of the matching data, and counts the number of all the request messages received in the cluster, compares the counted number of service failure states of the matched data, and counts the statistics. The number of all request messages received within the cluster. The number of service failure states that can obtain the calculated matching data as a percentage of the total number of request messages received in the statistical cluster.
- the difference between the number of service failure states of the matched matching data and the counted number of all the received request messages in the cluster may also be obtained, and other comparison methods may be used. This is not a limitation.
- the first base station updates, according to the comparison result, the maximum copy number of the matching data that is allowed to be copied.
- the first base station increases the maximum copy number of the allowed copy matching data. If the comparison result is less than the third threshold, the first base station reduces the maximum number of copies allowed to copy the matching data.
- the second threshold value and the third threshold value are preset.
- the first base station calculates, in step 31 9 , the number of service failure states of the statistical matching data as a percentage of the total number of all received request messages received in the cluster. If the second threshold is 10%, the third threshold is 5%. If the number of service failure states of the calculated matching data is 1 5% of the total number of all received request messages in the cluster, which is greater than the second threshold, the first base station It is necessary to increase the maximum number of copies that are allowed to copy the matching data.
- the embodiment of the present invention provides a data transmission method. After receiving the request message sent by the first device, the first base station retrieves the stored data according to the identification information of the request data in the request message, if the first base station has Matching the data, the base station directly sends the matching data to the first device. In this way, when the data is stored on the base station side, when the different user equipments served by the base station are requesting the same data, the base station can send the matching data to different user equipments without sending a request message to the network side, without establishing the network side.
- the same link sends the same data information to different user equipments, thereby reducing the occupation of the core network bandwidth resources by the data transmission, and directly transmitting from the base station side to the UE, thereby reducing the waiting time of the user equipment, thereby improving the User experience.
- Dynamically changing the data information based on the user's needs for data In the case of storage on the station side, the effectiveness of the system storage space is further improved.
- An embodiment of the present invention provides a base station, as shown in FIG. 11, including:
- the transceiver unit 1101 is configured to receive a request message sent by the first device.
- the request message carries the identifier information of the request data and the identifier information of the first device, where the first device includes the user equipment or the second base station.
- the retrieval unit 1102 is configured to perform retrieval in the stored data according to the identification information of the request data received by the transceiver unit 1101.
- the processing unit 1103 is configured to: when the searching unit 1102 retrieves the matching data, trigger the sending and receiving unit 1101 to send the matching data to the first device according to the identifier information of the first device.
- the matching data refers to data that matches the identification information of the request data.
- the processing unit 1103 is specifically configured to: if the transceiver unit 1101 receives the request message sent by the user equipment, if the search unit 1102 retrieves the matching data, triggering the transceiver unit 1101 to send the Match data to the user device.
- the transceiver unit 1101 receives the request message sent by the second base station, if the detecting unit 1102 detects the matching data, the matching data is sent to the second base station.
- the processing unit 1103 is further configured to: when the searching unit 1102 does not retrieve the matching data, and the base station is not a cluster head, trigger the transceiver unit 1101 to perform the request message via mobility management.
- the entity sends to the packet data gateway, so that the packet data gateway sends the request message to the third base station as a cluster head, so that the third base station determines, according to the identification information of the request data, that the match is stored a first storage device of data, and transmitting identification information of the first storage device to the first base station.
- the transceiver unit 1101 is further configured to receive identifier information of the first storage device.
- the transceiver unit 1101 is further configured to send the request message to the first storage device according to the identifier information of the first storage device, so that the first storage device stores the request message after receiving the request message. Matching data matching the identification information of the request data in the request message is transmitted to the base station.
- the transceiver unit 1101 is further configured to receive the matching data sent by the first storage device, and send the matching data to the first device.
- the processing unit 1103 is further configured to not check in the searching unit 1102.
- the base station is a cluster head
- the second storage device storing the matching data is determined according to the identification information of the request data, and the identification information of the second storage device is obtained.
- the transceiver unit 101 is further configured to send the request message to the second storage device according to the identifier information of the second storage device that is obtained by the processing unit 1 1 03, so that the second storage The device acquires the matching data according to the identification information of the request data, and sends the matching data to the base station.
- the transceiver unit 11 01 is further configured to receive the matching data sent by the second storage device.
- the transceiver unit 11 01 is further configured to send the matching data to the first device.
- the processing unit 101 is further configured to: when the searching unit 1 102 does not retrieve the matching data, and the base station is a cluster head, determine, according to the identification information of the request data, that the request is stored and the request The identification information of the data matches the third storage device of the matching data, and acquires the identification information of the third storage device.
- the transceiver unit 101 is further configured to send the identifier information of the third storage device acquired by the processing unit 1 103 to the first device, so that the first device is configured according to the third storage device. Identification information, the matching data is obtained from the third storage device.
- the base station as shown in FIG. 12, further includes:
- the determining unit 1 1 04 is configured to determine the number of times the request message is received.
- the processing unit 203 is further configured to: when determining that the number of times the request message is received is greater than the first threshold, obtain a maximum copy number of the matching data allowed in the cluster, and the stored in the cluster The number of times the data is matched.
- the processing unit 101 is further configured to: when the base station is not a cluster head, obtain, by using a cluster head, a maximum copy number of the matching data allowed in the cluster, and the matching is already stored in the cluster. The number of times the data.
- the processing unit 203 is further configured to: when the number of times the matching data has been stored in the cluster is less than the maximum number of copies in the cluster that allows copying of the matching data, store the matching data, and update the stored data in the cluster. The number of times the data is matched.
- the transceiver unit 101 is further configured to be used when the base station is not a cluster head.
- the number of times the matching data has been stored in the cluster updated by the processing unit 1103 is sent to the cluster head, so that the cluster head updates the number of times the matching data has been stored in the cluster.
- the determining unit 1104 is further configured to determine whether a size of the free storage space is greater than a size of the matching data.
- the processing unit 1103 is further configured to directly store the matching data when the determining unit 1104 determines that the size of the free storage space is greater than the size of the matching data.
- the determining unit 1104 determines that the size of the free storage space is not greater than the size of the matching data, updating the free storage space according to a least recently used algorithm (LRU), and storing the matching data after updating The free storage space.
- LRU least recently used algorithm
- the foregoing base station as shown in FIG. 13, further includes:
- the monitoring unit 1105 is configured to monitor, when the base station is a cluster head, a service status of the matching data stored in the cluster.
- the service status includes: a service success status and a service failure status.
- the service success status refers to sending the matching data to the first device.
- the service failure status means that the matching data is not sent to the first device.
- the statistic unit 1106 is configured to count, according to the service status of the matching data, the number of service failure states of the matching data, and the number of all the request messages received in the cluster.
- the comparing unit 1107 is configured to compare the number of service failure states of the matching data counted by the statistics unit 1106 and the number of all the request messages received in the cluster.
- the updating unit 1108 is configured to update, according to the comparison result determined by the comparing unit 1107, a maximum copy number that allows copying of the matching data.
- the updating unit 1108 is specifically configured to: when the comparison result determined by the comparing unit 1107 is greater than the second threshold, increase a maximum copy number that allows copying of the matching data. In the case where the comparison result is less than the third threshold, the maximum copy number that allows copying of the matching data is reduced.
- the transceiver unit 1101 is further configured to receive a wireless resource control link request message sent by the user equipment.
- the processing unit 1103 is further configured to establish, according to the radio resource control link request message received by the transceiver unit 1101, a radio resource control link with the user equipment.
- the embodiment of the present invention provides a base station, after receiving the request message sent by the first device, retrieving the stored data according to the identification information of the request data in the request message. If there is matching data in the first base station, the base station directly Send this match data to the first device. In this way, when the data is stored on the base station side, when the different user equipments served by the base station request the same data, the base station can send the matching data to different user equipments without sending the request message to the network side, without establishing the network side.
- the same link sends the same data information to different user equipments, so that the data transmission to the core network bandwidth resources can be reduced, and sent directly from the base station side to the user equipment, thereby reducing the waiting time of the user equipment, thereby improving The user experience.
- the storage of the data information on the base station side further improves the system storage space.
- An embodiment of the present invention provides a user equipment, as shown in FIG.
- the transceiver unit 1 4 01 is configured to send a request message to the first base station.
- the request message carries the identifier information of the request data and the identifier information of the user equipment, so that the first base station retrieves the data information that is stored by the first base station according to the identifier information of the request data. And if it is found that the first base station stores the matching data, the first base station directly sends the matching data to the user equipment.
- the matching data refers to data that matches the identification information of the request data.
- the transceiver unit 14 01 is further configured to receive a response message of the data request message sent by the first base station.
- the response message includes the matching data.
- the transceiver unit 194 is specifically configured to receive the matching data sent by the first base station.
- the response message includes identification information of a third storage device that stores the matching data.
- the transceiver unit 194 is specifically configured to receive, by the first base station, identifier information of the third storage device that stores the matching data.
- the processing unit 1 4 02 is configured to perform corresponding processing according to the response message received by the transceiver unit 1 401.
- the transceiver unit 1 401 receives the stored in the first base station and stores the
- the processing unit 1402 is specifically configured to: according to the identifier information of the third storage device that stores the matching data received by the transceiver unit 1401, The matching data is acquired from the third storage device.
- the processing unit 1402 is specifically configured to establish a point-to-point link with the third storage device according to the identifier information of the third storage device that stores the matching data received by the transceiver unit 1401. And obtaining the matching data from the third storage device through the point-to-point link.
- the processing unit 1402 is specifically configured to perform corresponding processing according to the matching data received by the transceiver unit 1401.
- the user equipment includes:
- the determining unit 1403 is configured to determine the number of times the request message is sent to the first base station.
- the processing unit 1402 is further configured to: when determining that the number of times the request message sent to the first base station is greater than a first threshold, obtain a maximum of the matching data allowed in the cluster from the cluster head The number of copies, and the number of times the matching data has been stored in the cluster.
- the processing unit 1402 is specifically configured to: when determining that the number of the request messages sent to the first base station is greater than a first threshold And acquiring, from the first base station, a maximum copy number of the matching data allowed in the cluster, and a number of times the matching data has been stored in the cluster.
- the processing unit 1402 is further configured to: when the number of times the matching data has been stored in the cluster is smaller than a maximum copy number of the matching data allowed in the cluster, storing the matching data, and updating the stored in the cluster The number of times the data is matched.
- the transceiver unit 1401 is further configured to send, to the cluster head, the number of times the matching data has been stored in the cluster updated by the processing unit 1402, so that the matching data is already stored in the cluster head update cluster. frequency.
- the transceiver unit 1401 is further configured to send a radio resource control link setup request message to the first base station, so that the first base station establishes a radio resource control link with the user equipment.
- the transceiver unit 1401 is further configured to send and carry to the mobility management entity. And a packet data link establishment request message of the packet data address information, so that the mobility management entity establishes a bearer chain established by the user equipment and the packet data gateway according to the packet data link establishment request and the packet data address information carried in the % information road.
- the embodiment of the present invention provides a user equipment, which sends a request message to the first base station, so that after receiving the request message sent by the user equipment, the first base station retrieves the first base station according to the identifier information of the request data in the request message.
- the stored data if the matching data is stored in the first base station, the first base station directly sends the matching data to the user equipment.
- the data information is stored on the base station side, so that when the different user equipments served by the base station request the same data, the base station can send the matching data to different user equipments without sending a request message to the network side, without establishing the network side.
- a plurality of identical links send the same data information to different user equipments, thereby reducing the occupation of the core network bandwidth resources by the data transmission, and directly transmitting the information to the user equipment from the base station side, thereby reducing the waiting time of the user equipment, thereby reducing the waiting time of the user equipment, thereby reducing the waiting time of the user equipment.
- Improve the user experience According to the dynamic change of the user equipment's data information, the storage of the data information on the base station side further improves the system storage space.
- the embodiment of the present invention provides a base station, as shown in FIG. 16, including: a transceiver 1601, a memory 1602, and a processor 1603 connected to the transceiver 1601 and the memory 1602, respectively.
- the base station may also include a common component such as an antenna, a baseband processing component, a medium-frequency processing component, and an input/output device.
- the embodiment of the present invention is not limited herein.
- the memory 1602 stores a set of program codes, and the processor 1603 is used to call the program code in the memory 1602.
- the specific execution process of the transceiver 1601 and the processor 1603 is as follows:
- the transceiver 1601 is configured to receive a request message sent by the first device.
- the request message carries the identifier information of the request data and the identifier information of the first device.
- the first device includes a user equipment or a second base station.
- the processor 1603 is configured to perform, in the stored data, the identifier information according to the request data in the request message received by the transceiver 1601.
- the processor 1603 is further configured to: when the matching data is retrieved, trigger the transceiver 1601 to send the matching data to the first device according to the identifier information of the first device.
- the matching data refers to data that matches the identification information of the request data.
- the processor 1603 is specifically configured to: if the transceiver 1601 receives a user When the request message is sent by the device, if the processor 1603 retrieves the matching data, the transceiver 1601 is triggered to send the matching data to the user equipment.
- the transceiver 1601 receives the request message sent by the second base station, if the processor 1603 retrieves the matching data, the matching data is sent to the second base station.
- the processor 1603 is further configured to: when the matching data is not retrieved, and the base station is not a cluster head, trigger the transceiver 1601 to send the request message to the packet data via the mobility management entity. a gateway, so that the packet data gateway sends the request message to a third base station that is a cluster head, so that the third base station determines, according to the identification information of the request data, a first storage that stores the matching data. And sending, by the device, identification information of the first storage device to the first base station.
- the transceiver 1601 is further configured to receive identifier information of the first storage device.
- the transceiver 1601 is further configured to send the request message to the first storage device according to the identifier information of the first storage device, so that the first storage device stores the request message after receiving the request message. Matching data matching the identification information of the request data in the request message is transmitted to the base station.
- the transceiver 1601 is further configured to receive the matching data sent by the first storage device, and send the matching data to the first device.
- the processor 1603 is further configured to: when the matching data is not retrieved, and the base station is a cluster head, determine, according to the identifier information of the request data, a second storage that stores the matching data. And obtaining the identification information of the second storage device.
- the transceiver 1601 is further configured to send a request message to the second storage device according to the identifier information of the second storage device acquired by the processor 1603, so that the second storage device is configured according to the request.
- the identification information of the data acquires the matching data, and sends the matching data to the base station.
- the transceiver 1601 is further configured to receive the matching data sent by the second storage device.
- the transceiver 1601 is further configured to send the matching data to the first device.
- the processor 1603 is further configured to: when the matching data is not retrieved, and the base station is a cluster head, determine, according to the identification information of the request data in the request message, that the storage and the storage are And a third storage device that matches the identification data of the request data, and acquires the identifier information of the third storage device.
- the transceiver 1601 is further configured to send the identifier information of the third storage device acquired by the processor 1603 to the first device, so that the first device is configured according to the identifier of the third storage device. Information, the matching data is obtained from the third storage device.
- the processor 1603 is further configured to determine the number of times the request message is received.
- the processor 1603 is further configured to: when determining that the number of times the request message is received is greater than a first threshold, obtain a maximum copy number of the matching data allowed in the cluster, and the stored in the cluster The number of times the data was matched.
- the processor 1603 is further configured to: when the base station is not a cluster head, acquire, by using a cluster head, a maximum copy number of the matching data allowed in the cluster, and the matching data is already stored in the cluster. frequency.
- the processor 1603 is further configured to: when the number of times the matching data has been stored in the cluster is less than a maximum number of copies in the cluster that allows copying of the matching data, store the matching data, and the updated cluster has stored the The number of times the data was matched.
- the transceiver 1601 is further configured to: when the base station is not a cluster head, send the number of times the matching data has been stored in the cluster updated by the processor 1603 to the cluster head, so that The cluster header updates the number of times the matching data has been stored in the cluster.
- the processor 1603 is further configured to determine whether a size of the free storage space is greater than a size of the matching data.
- the processor 1603 is further configured to directly store the matching data when determining that the size of the free storage space is greater than the size of the matching data.
- the free storage space is updated according to a least recently used algorithm, and the matching data is stored to the updated free storage space.
- the processor 1603 is further configured to monitor, when the base station is a cluster head, a service status of the matched data stored in the cluster.
- the service status includes: a service success status and a service failure status.
- the service success status refers to sending matching data to the first device.
- the service failure status means that the matching data is not sent to the first device.
- the processor 1603 is further configured to: according to the service status statistics of the matching data The number of service failure states of the matching data, and the number of all the request messages received in the cluster.
- the processor 1603 is further configured to compare the counted number of service failure states of the matching data and the number of all the request messages received in the cluster.
- the processor 1603 is configured to update, according to the determined comparison result, a maximum copy number that allows copying of the matching data.
- the processor 1603 is specifically configured to: when the comparison result is greater than the second threshold, increase the maximum copy number of the allowed copy data. In the case where the comparison result is less than the third threshold value, the maximum copy number that allows copying of the matching data is reduced.
- the transceiver 1601 is further configured to receive a radio resource control link request message sent by the user equipment.
- the processor 1603 is further configured to establish a radio resource control link with the user equipment according to the radio resource control link request message received by the transceiver 1601.
- the embodiment of the present invention provides a base station, after receiving the request message sent by the first device, retrieving the stored data according to the identification information of the request data in the request message. If there is matching data in the first base station, the base station directly Send this match data to the first device.
- the base station can send the matching data to different user equipments without sending the request message to the network side, without establishing the network side.
- the same link sends the same data information to different user equipments, so that the data transmission to the core network bandwidth resources can be reduced, and sent directly from the base station side to the user equipment, thereby reducing the waiting time of the user equipment, thereby improving The user experience.
- the storage of the data information on the base station side further improves the system storage space.
- the embodiment of the present invention provides a user equipment, as shown in FIG. 17, comprising: a transceiver 1701, a memory 1702, and a processor 1703 connected to the transceiver 1701 and the memory 1702, respectively.
- a user equipment can also be other common components, and the embodiments of the present invention are not limited herein.
- the memory 1702 is used to store a set of program codes
- the processor 1703 is used to call the program code in the memory 1702
- the processor 1703 and the transceiver 1701 are configured to perform the following operations:
- the transceiver 1701 is configured to send a request message to the first base station. .
- the request message carries the identification information of the request data and the user equipment. Identification information, such that the first base station retrieves data information stored by the first base station according to the identification information of the request data, and if it is found that the first base station stores matching data, the first The base station directly sends the matching data to the user equipment.
- the matching data refers to data that matches the identification information of the request data.
- the transceiver 1701 is further configured to receive a response message of the data request message sent by the first base station.
- the response message includes the matching data.
- the transceiver 1701 is specifically configured to receive the matching data sent by the first base station. Or,
- the response message includes identification information of a third storage device that stores the matching data.
- the transceiver 1701 is specifically configured to receive, by the first base station, identifier information of the third storage device that stores the matching data.
- the processor 1703 is configured to perform corresponding processing according to the response message received by the transceiver 1701.
- the processor 1703 is specifically configured to receive according to the transceiver 1701. And the identifier information of the third storage device that stores the matching data, and the matching data is obtained from the third storage device.
- the processor 1703 is specifically configured to establish a point-to-point link with the third storage device according to the identifier information of the third storage device that stores the matching data received by the transceiver 1701. And acquiring the matching data from the third storage device by using the point-to-point link.
- the processor 1703 is specifically configured to perform corresponding processing according to the matching data received by the transceiver 1701.
- the processor 1703 is further configured to determine a number of times the request message is sent to the first base station.
- the processor 1703 is further configured to: when the number of times the request message sent to the first base station is greater than the first threshold, obtain a maximum copy of the matching data in the cluster from the cluster head. Number, and the number of times the matching data has been stored in the cluster.
- the processor 1703 is specifically configured to: When determining that the number of times the request message sent to the first base station is greater than a first threshold, acquiring, from the first base station, a maximum copy number of the matching data allowed in the cluster, and a cluster The number of times the matching data has been stored.
- the processor 1803 is further configured to: when the number of times the matching data has been stored in the cluster is less than a maximum copy number of the matching data allowed in the cluster, storing the matching data, and updating the The number of times the matching data is stored.
- the transceiver 710 is further configured to send, to the cluster head, the number of times the matching data has been stored in the cluster updated by the processor 183, so that the cluster head update cluster has been stored in the cluster The number of times the data is matched.
- the transceiver 1 701 is further configured to send a radio resource control RRC link setup request message to the first base station, so that the first base station establishes an RRC radio resource control link with the UE user equipment.
- the transceiver 1701 is further configured to send, to the mobility management entity, a packet data link setup request message carrying packet data address information, so that the mobility manager entity establishes a request according to the packet data link;
- the packet data address information carried in the information establishes a bearer link established by the user equipment and the packet data gateway.
- the embodiment of the present invention provides a user equipment, which sends a request message to the first base station, so that after receiving the request message sent by the user equipment, the first base station retrieves the first base station according to the identifier information of the request data in the request message.
- the stored data if the matching data is stored in the first base station, the first base station directly sends the matching data to the user equipment.
- the data information is stored on the base station side, so that when the different user equipments served by the base station request the same data, the base station can send the matching data to different user equipments without sending a request message to the network side, without establishing the network side.
- a plurality of identical links send the same data information to different user equipments, thereby reducing the occupation of the core network bandwidth resources by the data transmission, and directly transmitting the information to the user equipment from the base station side, thereby reducing the waiting time of the user equipment, thereby reducing the waiting time of the user equipment, thereby reducing the waiting time of the user equipment.
- Improve the user experience According to the dynamic change of the user equipment's data information, the storage of the data information on the base station side further improves the system storage space.
- the embodiment of the present invention provides a system for data transmission, as shown in FIG. 18, including: a mobility management entity (MME) 1 8 01 , a packet data gateway 1 802, at least one base station 1 8 03, and at least one user equipment 1 8 04.
- MME mobility management entity
- the base station 108 8 is the base station described in the foregoing embodiment.
- the user equipment 108 is the user equipment described in the foregoing embodiment.
- the embodiment of the present invention provides a data transmission method, device, and system. After receiving a request message sent by the first device, the base station retrieves the stored data according to the identification information of the request data in the request message, if the first base station If there is matching data, the base station directly sends the matching data to the first device. In this way, when the data is stored on the base station side, when the different user equipments served by the base station are requesting the same data, the base station can send the matching data to different user equipments without sending a request message to the network side, without establishing the network side.
- the same link sends the same data information to different user equipments, thereby reducing the occupation of the core network bandwidth resources by the data transmission, and directly transmitting from the base station side to the user equipment, thereby reducing the waiting time of the user equipment, thereby improving The user experience.
- the storage of the data information on the base station side further improves the system storage space.
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Abstract
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2014
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KR20150093822A (ko) | 2015-08-18 |
EP2925031A1 (en) | 2015-09-30 |
KR101671140B1 (ko) | 2016-10-31 |
US9736872B2 (en) | 2017-08-15 |
CN104125559B (zh) | 2018-01-09 |
CN104125559A (zh) | 2014-10-29 |
EP2925031B1 (en) | 2018-04-11 |
US20150319794A1 (en) | 2015-11-05 |
JP6097411B2 (ja) | 2017-03-15 |
EP2925031A4 (en) | 2016-03-23 |
JP2016517643A (ja) | 2016-06-16 |
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