WO2017008697A1 - 数据传输方法、装置、多通道路由方法及用户设备 - Google Patents

数据传输方法、装置、多通道路由方法及用户设备 Download PDF

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Publication number
WO2017008697A1
WO2017008697A1 PCT/CN2016/089397 CN2016089397W WO2017008697A1 WO 2017008697 A1 WO2017008697 A1 WO 2017008697A1 CN 2016089397 W CN2016089397 W CN 2016089397W WO 2017008697 A1 WO2017008697 A1 WO 2017008697A1
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Prior art keywords
interface
data transmission
wireless data
link
rate
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PCT/CN2016/089397
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English (en)
French (fr)
Inventor
黄俊源
车晓东
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努比亚技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Priority claimed from CN201510404515.2A external-priority patent/CN105101438A/zh
Priority claimed from CN201510408296.5A external-priority patent/CN105228133A/zh
Priority claimed from CN201510405867.XA external-priority patent/CN105119825A/zh
Priority claimed from CN201510426987.8A external-priority patent/CN105094960A/zh
Priority claimed from CN201610013139.9A external-priority patent/CN105656798A/zh
Application filed by 努比亚技术有限公司 filed Critical 努比亚技术有限公司
Publication of WO2017008697A1 publication Critical patent/WO2017008697A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/02—Selection of wireless resources by user or terminal

Definitions

  • the present application relates to, but is not limited to, the field of communication technologies, and in particular, to a data transmission method, apparatus, multi-channel routing method, and user equipment.
  • LTE Long Term Evolution
  • MIMO Multi-Input & Multi-Output
  • This paper provides a data transmission method, device, multi-channel routing method and user equipment.
  • a data transmission method which is applicable to a terminal having multiple wireless data transmission interfaces, including:
  • the established link is allocated to the wireless data transmission interface in a connected state to perform data service transmission.
  • the offload weight is 1:1 offload weight, or the split weight is calculated based on the interface rate and the interface delay.
  • the method further includes:
  • the split weight is adjusted according to the interface rate and the interface delay
  • the adjusting the number of links assigned to the wireless data transmission interface in the connected state includes:
  • the newly created link is assigned to the connected wireless data transmission interface according to the adjusted split weight.
  • the method further includes:
  • the wireless data transmission interface in the connected state becomes unconnected during the transmission, the link transmitted through the wireless data transmission interface is suspended, and the data transmission of the link is continued by newly creating a link.
  • the detecting the connectivity of each wireless data transmission interface in real time includes: sending an Internet packet explorer ping message from each wireless data transmission interface to the preset server every first preset time;
  • the wireless data transmission interface is in a disconnected state, and if the reply message is received, the wireless data transmission interface is in a connected state.
  • the method further comprises: obtaining the change in the number of bytes of the wireless data transmission interface as the current rate of the wireless data transmission interface every third predetermined time.
  • the method further includes: detecting whether the wireless data transmission interface is in a congested state, and if yes, determining whether a current rate of the wireless data transmission interface is greater than a historical maximum rate of the wireless data transmission interface, if not If the current rate is greater than the historical maximum rate, the current rate is added to the first preset value and compared with the historical maximum rate. If the current rate is less than the historical maximum rate, the current rate is used as the real-time maximum rate of the wireless data transmission interface.
  • the current rate is used as the real-time maximum rate of the wireless data transmission interface, and the history is updated. Maximum rate.
  • the calculating the traffic weight based on the interface rate and the interface delay includes: comparing the real-time maximum rate with the second preset value, and if the real-time maximum rate is greater than the second preset value, according to the wireless
  • the real-time maximum rate of the data transmission interface calculates the split weight; if the real-time maximum rate is not greater than the second preset value, the split weight is determined according to the delay of the wireless data transmission interface.
  • the split weight of any wireless data transmission interface is the ratio of the real-time maximum rate of the wireless data transmission interface to the sum of the real-time maximum rates of all wireless data transmission interfaces.
  • the method further includes: when receiving a synchronization confirmation syn+ack message through a wireless data transmission interface, determining whether it is in a synchronization request SYN_SEND state, and if so, acquiring a current system time, and The current system time obtained is subtracted from the time when the system sends the synchronous syn message, and the obtained time difference is the delay of the wireless data transmission interface.
  • the method further includes: sending a set of ping messages through each wireless data transmission interface every fourth preset time, and acquiring a delay of the wireless data transmission interface according to the time difference of receiving the reply information. .
  • the delay of the wireless data transmission interface is inversely proportional to the split weight of the wireless data transmission interface.
  • the method further includes: obtaining a data packet of each link, and determining whether a link tracking state of the acquired data packet is the first data packet;
  • the data packet is marked according to the offload weight, and the tag value is saved; if it is not the first data packet, the tag value of the first data packet of the saved link is given The data packet;
  • the data packet is assigned to the corresponding wireless data transmission interface for transmission according to the tag value of the data packet.
  • the plurality of wireless data transmission interfaces comprise at least one of the following: a first LTE interface, a second LTE interface, a first wireless fidelity WIFI interface, and a second WIFI interface.
  • a data transmission apparatus which is applicable to a terminal having multiple wireless data transmission interfaces, including:
  • the first detecting module is configured to: detect connectivity of each wireless data transmission interface in real time;
  • the first offload weight calculation module is configured to: when detecting a data service, establish at least one link;
  • the first offload transmission module is configured to: allocate, according to the offloading weight, the established link to the wireless data transmission interface in the connected state to perform data service transmission.
  • a data transmission method is provided, which is applicable to a terminal having multiple wireless data transmission interfaces, including:
  • the shunt weight is calculated according to the 1:1 offload weight or based on the interface rate, and the established link is allocated to the wireless data transmission interface in the connected state to perform data service transmission.
  • a fourth aspect provides a data transmission apparatus, which is applicable to a terminal having multiple wireless data transmission interfaces, including:
  • the second detecting module is configured to: detect connectivity of each wireless data transmission interface in real time;
  • the second offload weight calculation module is configured to: when detecting the data service, establish at least one link, and calculate a split weight of each wireless data transmission interface in the connected state according to the real-time rate of the wireless data transmission interface in the connected state;
  • the second offload transmission module is configured to: obtain a split weight according to the 1:1 offload weight or based on the interface rate, and allocate the established link to the wireless data transmission interface in the connected state to perform data service transmission.
  • a fifth aspect provides a multi-channel routing method, which is applicable to a terminal having multiple wireless data transmission interfaces, including:
  • Detecting connectivity of one or more wireless data transmission interfaces calculating a traffic weight based on the rate detection result of the interface, and assigning one or more links established by the transmission data service to the wireless data transmission interface in the connected state according to the traffic weighting to perform data The transmission of business.
  • the sixth aspect provides a user equipment, including a first user identification module and a second user identification module, and further includes:
  • control module configured to: output a first control instruction and a second control instruction according to an operation instruction of the user;
  • the control module is further configured to: control the switching module according to the first control instruction, so that the first user identification module or the second user identification module is connected to the first communication module;
  • the first communication module is configured to establish a data service connection with the LTE network for data service transmission;
  • the control module is further configured to: control the switching module according to the second control instruction, so that the first user identification module or the second user identification module is connected to the second communication module;
  • the second communication module is configured to establish a data service connection with the LTE network for data service transmission;
  • the control module is further configured to: detect connectivity of the first communication module and the second communication module; when detecting the data service, establish at least one link; and assign the established link to the communication module in the connected state according to the split weight For the transmission of data services.
  • the user equipment further includes:
  • At least one WIFI module is configured to: connect to a WIFI network for data transmission;
  • the control module is further configured to: detect connectivity of each wireless data transmission interface in real time; establish at least one link when detecting data services; and assign the established link to wireless data transmission in a connected state according to the split weight Interface for data service transmission;
  • the wireless data transmission interface includes: a first LTE interface corresponding to the first communication module, a second LTE interface corresponding to the second communication module, and at least one WIFI interface corresponding to the at least one WIFI module.
  • a seventh aspect a computer readable storage medium storing computer executable instructions, The above method is implemented when the computer executable instructions are executed by the processor.
  • the data transmission method, device, multi-channel routing method and user equipment of the embodiments of the present invention have the following beneficial effects: based on interface rate offloading, or based on interface rate and delay shunt, realizing data transmission by using multiple data channels simultaneously.
  • it can break through the limitation that the current market can only use a single subscriber identity module to transmit data services, and improve the maximum data transmission.
  • the rate allows users to transmit data services over a better link.
  • FIG. 1 is a schematic structural diagram of a terminal according to an embodiment of the present invention.
  • FIG. 2 is a block diagram of an operating system according to an embodiment of the present invention.
  • FIG. 3 is a schematic diagram of a network architecture according to an embodiment of the present invention.
  • FIG. 4 is a schematic flow chart of a data transmission method according to an embodiment of the present invention.
  • FIG. 5 is a schematic flowchart of detecting interface connectivity according to an embodiment of the present invention.
  • FIG. 6 is a schematic flowchart of measuring a real-time maximum rate and calculating a split weight according to a real-time maximum rate and a delay of an interface according to an embodiment of the present invention
  • FIG. 7 is a schematic flow chart of marking a data packet in an embodiment of the present invention.
  • FIG. 8 is a flowchart of a data transmission method according to an embodiment of the present invention.
  • FIG. 9 is a schematic structural diagram of a user equipment with dual LTE simultaneous download (dual channel download) function according to an embodiment of the present invention.
  • FIG. 10 is a flowchart showing the operation of a user equipment according to an embodiment of the present invention.
  • FIG. 11 is a schematic flow chart of a multi-channel routing method according to an embodiment of the present invention.
  • FIG. 12 is a schematic diagram of a data transmission apparatus according to an embodiment of the present invention.
  • FIG. 13 is a schematic diagram of a data transmission apparatus according to another embodiment of the present invention.
  • FIG. 1 is a schematic structural diagram of a terminal according to an embodiment of the present invention.
  • the terminal 100 may have such as a personal computer (eg, a laptop computer, a netbook computer, a tablet computer, etc.), a cellular phone, a personal digital assistant (PDA), a digital video recorder (DVR), an Internet appliance, a game console, an electronic reader, etc. Any of the configurations.
  • the architecture of the terminal 100 may include a processor 1, a communication module 2, a memory 4, and a subscriber identity module 5. It should be understood that, in addition, the terminal 100 may further include: a display screen, a speaker, an earpiece, a camera, a power management, and the like for performing corresponding functions.
  • the memory 4 can store an operating system executed by the processor 1, a software program for processing and controlling operations, and the like.
  • the memory 4 may include at least one type of storage medium including a flash memory, a hard disk, a multimedia card, a card type memory (eg, SD or DX memory, etc.), a random access memory (RAM), a static random access memory ( SRAM), read only memory (ROM), electrically erasable programmable read only memory (EEPROM), programmable read only memory (PROM), magnetic memory, magnetic disk, optical disk, and the like.
  • the terminal 100 can cooperate with a network storage device that performs a storage function of the memory 4 through a network connection.
  • the processor 1 is the core of the terminal communication function and system control, and is mainly responsible for completing the two aspects of work.
  • the baseband processing capability of the physical layer of the protocol stack is completed, including digital joint detection, modulation/demodulation, interleaving/deinterleaving, and channel coding. / decoding, pulse shaping, etc.; the second is to deal with operating systems, driver software, human-machine interfaces, applications, and so on.
  • the processor has the ability to manage peripherals and interfaces.
  • communication module 2 typically includes one or more components that permit radio communication between terminal 100 and a wireless communication system or network.
  • the communication module 2 includes a first communication module 21, a second communication module 22, a third communication module 23, and the like.
  • the first communication module 21 can be a WIFI (WIreless-Fidelity) module.
  • the WIFI module performs communication according to the WIFI method.
  • the terminal 100 of the embodiment of the present invention can perform data transmission through the WIFI network.
  • the second communication module 22 can be a mobile communication module.
  • the mobile communication module is configured to transmit communication exchange signaling to one or more base stations or other devices in the wireless communication system, or from one or more The base station or other device receives the communication exchange signaling.
  • the mobile communication module 2 can include one or more of a transmitter, a receiver, a transmit chain component, and a receive chain component.
  • the mobile communication module 2 may be a chip that performs communication according to communication standards such as IEEE, Zigbee, 3G (third generation), 3GPP (3rd Generation Partnership Project), and LTE (Long Term Evolution).
  • the terminal 100 of the embodiment of the present invention can perform data transmission through a mobile communication network (for example, a mobile communication network such as 2G, 3G, or 4G).
  • the third communication module 23 can also be a WIFI module or a mobile communication module.
  • the terminal 100 of the embodiment of the present invention may include one or more WIFI modules, one or more mobile communication modules.
  • the communication module 2 may further include a Bluetooth module, a NFC (Near Field Communication) module, or the like to implement a corresponding wireless communication function.
  • a Bluetooth module a Bluetooth module
  • a NFC (Near Field Communication) module or the like to implement a corresponding wireless communication function.
  • the subscriber identity module 5 can manage users associated with the first technical standard.
  • the subscriber identity module 5 can have one or more associated telephone numbers.
  • the terminal 100 can communicate in the network via the base station through the subscriber identity module 5 and the mobile communication module.
  • the subscriber identity module 5 can be one or more. It should be understood that the number of subscriber identity modules 5 is associated with the number of mobile communication modules. For example, when the terminal 100 includes two mobile communication modules, generally two user identification modules 5 are included to implement dual card dual communication; when the terminal 100 includes a mobile communication module, one (single card single pass) or two may be included. (Double card single standby) user identification module 5.
  • the terminal 100 in the embodiment of the present invention can implement data transmission by using one or two LTE data channels. It should be understood that the dual LTE data transmission may also be implemented in other manners, for example, directly adopting a chip having the function, an external subscriber identity module, and the like.
  • the terminal 100 of the embodiment of the present invention may perform data transmission by using at least one of the following methods: a WIFI data channel (which may be one or more), and an LTE data channel (which may be one or more) ), 3G data channel (may be one or more), 2G data channel (can be one or more).
  • a WIFI data channel which may be one or more
  • LTE data channel which may be one or more
  • 3G data channel may be one or more
  • 2G data channel can be one or more.
  • LTE data channels and 3G data channels can be provided simultaneously.
  • the terminal 100 includes multiple WIFI modules.
  • a plurality of operating systems may be stored in the memory 4, including but not limited to Windows, Linux, Unix, Mac OS X, IOS, Solaris, Android, and the like.
  • the architecture of the operating system stored in the memory 4 and processed by the processor 1 shown in FIG. 1 is as shown in FIG. 2, and includes a driver layer 21, a kernel layer 22, and a user layer 23.
  • the kernel layer 22 includes a network interface layer 221, a network layer 222, a TCP (Transmission Control Protocol)/UDP (User Data Protocol) 223, and a kernel interface 224.
  • TCP Transmission Control Protocol
  • UDP User Data Protocol
  • FIG. 3 is a schematic diagram of a network architecture according to an embodiment of the present invention.
  • the terminal 100 can be connected to the wireless core network through the base station 200, the wireless access point (AP) 300, etc., and then connected to the private network and the Internet to realize data transmission.
  • the plurality of terminals 100 can also be connected to the wireless core network through the base station and the wireless access point, thereby realizing mutual data transmission.
  • an embodiment of the present invention provides a data transmission method.
  • the data transmission in the embodiment of the present invention is based on a link, that is, when there is a data service to be transmitted, one or more (two or more) links are established, and each link is used to transmit a data packet of a certain size, thereby completing The transmission of the entire data.
  • a data transmission method includes:
  • Step S1 The connectivity of each interface is detected in real time.
  • detecting the connectivity of the interface means detecting whether the data channel is connected. For example, detecting the connectivity of the WIFI interface, that is, detecting whether the WIFI network can be accessed through the WIFI data channel for data transmission.
  • interface refers to a wireless data transmission interface, including a WIFI interface, an LTE interface, a 3G interface, and the like.
  • the number of interfaces may be multiple.
  • the interface may include two LTE interfaces and two WIFI interfaces.
  • interface connectivity detection proceeds as follows:
  • a ping Packet Internet Groper
  • the destination IP address of the ping is a fixed DNS (Domain Name System). , Domain Name System)
  • DNS Domain Name System
  • the address of the server for example, 114.114.114.114.
  • Step S12 waiting for a second preset time (for example, 10 seconds), if no reply is received, step S13 is performed; if a reply is received, step S14 is performed;
  • a second preset time for example, 10 seconds
  • step S13 the interface is marked as down.
  • step S14 the interface is marked as connected (UP).
  • step 13 includes marking the interface as disconnected if the interface is previously in a connected state and waits for a preset duration to not receive a reply.
  • Step 14 includes: if the interface is in a disconnected state and waits for a preset duration to receive a reply, the link is considered to be connected, and the interface is marked as connected.
  • the interface can be added to the list of available interfaces; if an interface is down, it is not added to the available interface list or from the available interface. Remove from the list.
  • connectivity of the interface can also be performed in other ways, such as by sending null packets.
  • Step S2 When it is detected that there is a data service, at least one link is established.
  • Establishing a link means establishing a link between the terminal 100 and other terminals or servers, for example, establishing a link through a three-way handshake.
  • the number of links can be set according to actual conditions, for example, the maximum number of links that the terminal 100 can support, the amount of data of the data service, and the like.
  • the offload weight includes a 1:1 offload weight and the split weight is calculated according to the interface rate and the interface delay.
  • an initial routing rule can be established based on the connectivity of the interface.
  • the initial routing rule can be established in a uniform manner, that is, according to the 1:1 traffic weight, the number of links to be transmitted allocated by the interface in the connected state is the same. For example, if there are three interfaces in communication In the state, the maximum number of links that the terminal 100 can establish is nine, and the initial routing rule is that the first, second, and third links are transmitted through the first interface, and the fourth, fifth, and sixth links are transmitted through the second interface, and the seventh. 8 and 9 links are transmitted through the third interface. Therefore, in the embodiment of the present invention, when data is transmitted, data is first transmitted according to an initial routing rule.
  • the offload weight of each interface is adjusted according to the interface rate and interface delay.
  • the interface is measured at a third preset time (for example, 1 second), and the split weight is calculated according to the rate and delay corresponding to the interface every fifth preset time (for example, 5 seconds).
  • the split weights may also be calculated based only on the real-time rate of the interface without regard to latency.
  • the rate detection of the interface is performed as follows:
  • Every third preset time (for example, 1 second), the change of the number of interface bytes is obtained as the current rate of the interface. If the rate of detecting an interface is detected for the first time, the number of detected bytes is saved. If the rate of an interface is not detected for the first time, the number of interface bytes obtained is subtracted from the number of interface bytes obtained before, and the obtained difference is divided by the time of two detections. Current rate.
  • the split weight is calculated according to the rate and delay of the interface in the following manner:
  • Step S601 performing speed measurement on the interface
  • Step S602 detecting whether the interface is in a congested state, if yes, executing step S603; if not, executing step S605,
  • Step S603 determining whether the current real-time rate is smaller than the historical maximum rate (max_speed) of the previous statistics. If it is smaller, whether the current real-time rate is less than the historical maximum rate after adding a first preset value (for example, 100 KB/s) If yes, it indicates that the network environment has undergone a large transformation, step S604 is performed; if not, step S605 is performed;
  • a first preset value for example, 100 KB/s
  • Step S604 assigning the current real-time rate to the real-time maximum rate
  • Step S605 the interface is not in a congested state, and the current real-time rate is greater than the historical maximum rate, step S606 is performed;
  • Step S606 assigning the current real-time rate to the real-time maximum rate and the historical maximum rate.
  • Step S611 calculating a split weight according to the delay and the rate, including:
  • step S612 the real-time maximum rate is compared with a second preset value (for example, 50 kb/s). If the real-time maximum rate is greater than the second preset value, step S613 is performed; if the real-time maximum rate is not greater than The second preset value is performed, step S614 is performed;
  • a second preset value for example, 50 kb/s
  • Step S613 calculating a split weight according to the real-time maximum rate of the interface.
  • Step S614 detecting the interface delay, if detected, executing step S615; if not detected, indicating that an abnormality occurs, step S616 is performed;
  • Step S615 determining a split weight according to the delay of the interface
  • step S616 the shunt is performed according to the 1:1 split weight.
  • detecting whether the interface is in a congested state is obtained by detecting the delay of the interface, and the delay detection method of the interface has the following two methods:
  • Manner 1 Send a set of ping packets (for example, 5 packets per group, each of which is 64 Bytes) through the interface every fourth preset time (for example, 5 seconds), and obtain the interface according to the time difference of receiving the response. Delay.
  • Manner 2 Calculating the delay by using the TCP three-way handshake.
  • When receiving a synchronization confirmation syn+ack message it determines whether it is in the synchronization request SYN_SEND state. If it is, it acquires the current system time and acquires the current system. The time is subtracted from the time when the system sends the synchronous syn message, and a time difference is obtained. This time difference is the interface delay.
  • the interface is marked as being in a congested state. If the delay is less than the preset value of the delay, it is detected whether the syn message of the link is retransmitted. If the retransmission is repeated, the interface is marked as in a congested state, and the delay value is set to the delay pre- If the value is not retransmitted, the interface is not in the congestion state, and the calculated delay value is used as the delay of the interface.
  • a delay preset eg, 1000 ms
  • the calculation can be performed according to the following formula:
  • the shunt weight of the i-th interface the real-time maximum rate of the i-th interface / (the real-time maximum rate of the first interface + the real-time maximum rate of the second interface + ... + the real-time maximum rate of the i-th interface +... )
  • the above calculation of the split weight according to the interface rate may also adopt other manners, for example,
  • the relationship between the rate range and the split weight is preset. When the rate is in the first range, the split weight is 20%, and in the second range, the split weight is 80%.
  • the delay is inversely proportional to the weight of the traffic. For example, if the delay of the first interface is D1 and the delay of the second interface is D2, the traffic weight of the first interface is D2/(D1+). D2), the weight of the second interface is D1/(D1+D2).
  • the relationship between the delay and the split weight may be set in other manners. For example, when the preset delay exceeds a certain value, the split weight is set to 0 or the like.
  • the default is to perform the splitting by a weight of 1:1.
  • the preset abnormal conditions include, but are not limited to, when the real-time maximum rate is not greater than the preset value, and the time delay of the interface is not detected.
  • the newly established link in the data transmission process can be allocated to each interface according to the new split weight to perform data service transmission. Therefore, in the embodiment of the present invention, a current routing rule can be established according to the split weight.
  • the difference between the current routing rule and the initial routing rule is that the current routing rule is based on the calculated offloading weight, and the established link is assigned to each of the connected state interfaces. For example, if there are three interfaces, the number of links established is nine, and the calculated traffic weight is 3:4:2, the number of links allocated to the first interface for transmission is adjusted to three, and is allocated to the second interface. The number of links transmitted is adjusted to four, and the number of links assigned to the third interface for transmission is adjusted to two.
  • the linked data packet is marked by means of marking the link data packet.
  • different links can be transmitted along the corresponding interface according to the tag value of the data packet.
  • a routing rule formed by marking a data packet according to a split weight is used.
  • link Mark value interface 1 0X01 First interface (for example, WIFI interface) 2 0X02 Second interface (eg, first LTE interface) 3 0X03 Third interface (eg, second LTE interface)
  • the mark value in Table 1 is the tag value of the packet in each link.
  • the first data packet of each link is marked, and the subsequent data packets are transmitted according to the interface of the first data packet.
  • Step S21 Acquire a data packet, and determine whether the link tracking state of the data packet is a preset state.
  • the preset state is the new state, that is, whether it is the first data packet of the link; if yes, step S22 is performed; if not, step S24 is performed;
  • Step S22 which is a preset state (that is, the first data packet), and marks the data packet according to the interface to which the link is allocated;
  • step S23 the tag value is saved. Can be saved to the corresponding link tracking mark; step S25;
  • Step S24 instead of the preset state (ie, not the first data packet), the saved tag value of the first data packet of the link is assigned to the data packet, and the data packet is allocated to the data packet according to the tag value of the data packet.
  • the corresponding interface is transmitted.
  • step S25 the route is searched according to the tag value.
  • the data packet tag value in the embodiment of the present invention has a double meaning.
  • the link to which the data packet belongs can be determined, and second, it can be determined which interface the data packet should go to.
  • the data transmission method of the embodiment of the present invention may further include: in the transmission process of the data service, according to the rate and time of the interface, because the network environment is changed in real time, and the connectivity state, rate, and the like of each interface are also changed in real time. Delay, adjust the split weight; and adjust the number of links assigned to each interface in the connected state based on the adjusted split weight.
  • the data service to be downloaded may be divided into a plurality of data blocks of the same size or different size to be respectively transmitted through the established multiple links.
  • a 10M-sized APK can be divided into 10 data blocks, each of which has a size of 1M, and each data block is transmitted through a link.
  • the maximum number of links that the terminal 100 can establish is not necessarily equal to the divided data blocks, for example, the data block is 10, and the maximum number of links established is 5. Then when the transfer of a link is completed, a new link can be created to continue to transfer the remaining data.
  • adjusting the number of links allocated to the interface in the connected state includes: assigning the newly created link to the interface in the connected state according to the adjusted split weight.
  • a link that has been assigned to the corresponding interface is transmitted through the interface until completion. However, if the interface in the connected state becomes unconnected during the transmission, the link transmitted through the interface is aborted, and the data transmission of the link is continued by creating a new link. For example, if the data size of a link needs to be transmitted is 1M, when the transmission to 0.5M size, the corresponding transmission interface is abnormally interrupted, the change will be reflected in the current routing rule, the traffic weight will change, and the new link will be created. After that, the newly created link will be assigned to the corresponding interface according to the current routing rule to continue the transmission of the remaining 0.5M data.
  • the data transmission method of the embodiment of the present invention may further include: after the data service is transmitted, the interface is closed, and the current routing rule is deleted.
  • the data transmission method performs offloading based on the interface rate and the delay, and simultaneously realizes data transmission by using multiple data channels, thereby greatly optimizing the distribution ratio of the data stream; since the rate reflects the interface bandwidth to a certain extent
  • the size of the interface with large bandwidth should carry more data streams, so that a large amount of data is not easily circulated from the interface with small bandwidth, causing congestion of interfaces with small bandwidth, causing large delays and packet loss, and improving users.
  • Embodiment 2 of the present invention differs from Embodiment 2 of the present invention and the above embodiment.
  • the data transmission method of this embodiment includes:
  • step S10 the connectivity of each interface is detected in real time.
  • Step S20 When it is detected that there is a data service, at least one link is established.
  • step S10 and step S20 are the same as steps S1 and S2 of the foregoing embodiment, and details are not described herein again.
  • Step S30 Calculate the traffic weight according to the 1:1 traffic weight or the interface rate, and allocate the established link to the interface in the connected state to perform data service transmission.
  • the offload weight includes a 1:1 split weight and the split weight is calculated based on the interface rate.
  • the rate of the interface is considered when calculating the adjusted split weight. Since the rate reflects the bandwidth of the interface to a certain extent, the calculation of the split weight according to the rate can make the calculation of the split weight simpler and avoid congestion.
  • the interface is measured at a third preset time (for example, 1 second), and the split weight is calculated based on the rate of the interface or the split weight is calculated according to the rate corresponding to the interface every fifth preset time (for example, 5 seconds).
  • the rate detection of the interface is performed as follows:
  • Every third preset time (for example, 1 second), the change of the number of interface bytes is obtained as the current rate of the interface. If the rate of detecting an interface is detected for the first time, the number of detected bytes is saved. If the rate of an interface is not detected for the first time, the number of interface bytes obtained is subtracted from the number of interface bytes obtained before, and the obtained difference is divided by the time of two detections. Current rate.
  • the method for determining the real-time maximum rate of the interface according to the real-time maximum rate of the interface is used. for:
  • the speed of the interface and check whether the interface is in a congested state. If yes, determine whether the current real-time rate is smaller than the historical maximum rate (max_speed). If it is smaller, the current real-time rate plus a first preset value. (for example, 100KB/s) is less than the historical maximum rate, if it is, it indicates that the network environment has undergone a large transformation, and the current real-time rate is assigned to the real-time maximum rate;
  • a first preset value for example, 100KB/s
  • the current real-time rate is assigned to the real-time maximum rate and the historical maximum rate.
  • detecting whether the interface is in a congested state is obtained by detecting the delay of the interface, and the delay detection method of the interface has the following two methods:
  • Manner 1 Each group sends a set of ping packets (for example, 5 packets per group, each of which is 64 Bytes) every fourth preset time (for example, 5 seconds), and obtains the time difference according to the received response. The delay of the mouth.
  • Manner 2 Calculate the delay by using TCP three-way handshake. When receiving a syn+ack packet, determine whether it is in the SYN_SEND state. If it is, obtain the current system time and subtract the current system time from the system. The time when the syn message is sent, and a time difference is obtained. This time difference is the interface delay.
  • the interface is marked as being in a congested state. If the delay is less than the preset value of the delay, it is detected whether the syn message of the link is retransmitted. If the retransmission is repeated, the interface is marked as in a congested state, and the delay value is set to the delay pre- Set the value; if not retransmitted, the interface is not in a congested state.
  • a delay preset eg, 1000 ms
  • the calculation can be performed according to the following formula:
  • the shunt weight of the i-th interface the real-time maximum rate of the i-th interface / (the real-time maximum rate of the first interface + the real-time maximum rate of the second interface + ... + the real-time maximum rate of the i-th interface +... )
  • the foregoing method for calculating the split weight according to the interface rate may adopt other manners, for example, pre-setting the relationship between the rate range and the split weight.
  • the split weight is 20%, and in the second range.
  • the weight of the shunt is 80% and so on.
  • the newly established link in the data transmission process can be allocated to each interface according to the new split weight to perform data service transmission. It should be understood that the difference between the embodiment of the present invention and the foregoing embodiment is only that, in this embodiment, only the interface rate is considered when calculating the adjusted offload weight, and other implementation details and principles are the same as the foregoing embodiment, and are no longer Narration.
  • the data transmission method based on the interface rate splitting, realizes simultaneous transmission of data by using multiple data channels, and greatly optimizes the distribution ratio of the data stream; since the rate reflects the bandwidth of the interface to a certain extent, the bandwidth A large interface should carry more data streams, so that a large amount of data is not easily circulated from an interface with a small bandwidth, causing congestion of an interface with a small bandwidth, resulting in a large delay and a packet loss condition, thereby improving the user experience.
  • FIG. 9 is a schematic structural diagram of a user equipment with a dual LTE simultaneous download (dual-channel download) function, including: a first user identification module 206, a second user identification module 306, and a first communication module. 801.
  • the first communication module 801 includes: a first protocol stack 201 and a first radio frequency 202.
  • the second communication module 802 includes a second protocol stack 301 and a second radio frequency 305.
  • the application processing module 205 is configured to provide a user interaction interface and transmit the user's operation instructions to the control module 804.
  • the control module 804 is configured to: output the first control instruction and the second control instruction according to an operation instruction of the user.
  • the control module 804 is further configured to: according to the first control instruction, control the switching module 803 such that the first user identification module 206 or the second user identification module 306 is connected to the first communication module 801.
  • the first communication module 801 is configured to establish a data service connection with the 4G network for data service transmission, and establish a call connection through the 4G network for voice transmission.
  • the control module 804 is further configured to control the switching module 803 according to the second control instruction such that the first user identification module 206 or the second user identification module 306 is connected to the second communication module 802.
  • the second communication module 802 is configured to establish a data service connection with the 4G network for data service transmission.
  • the microphone 500 is configured to: collect a voice signal; the codec 204 is configured to: perform analog-to-digital conversion on the voice signal collected by the microphone 500; and the digital signal processing chip 203 is configured as: a codec 204
  • the analog-to-digital converted signal is audio processed and transmitted to the first protocol stack 201; the first radio frequency 202 is configured to: transmit the signal processed by the first protocol stack 201 to the 4G network.
  • the first radio frequency 202 is further configured to: receive a voice signal from the 4G network, and transmit the signal to the first protocol stack 201;
  • the digital signal processing chip 203 is configured to: perform audio processing on the signal processed by the first protocol stack 201 and transmit the signal to Codec 204;
  • codec 204 is configured to: perform analog-to-digital conversion on signals from the digital signal processing chip;
  • earpiece 600 set to: output is encoded The speech signal processed by the encoder 204.
  • the first protocol stack 201 is an LTE protocol stack
  • the 4G network is an LTE network
  • the second protocol stack 301 is an LTE protocol stack
  • the 4G network is an LTE network.
  • the user equipment of this embodiment can support dual LTE for data transmission, and the implementation principle and details can be referred to the invention patent application with the application number 201510827714.4. It should be understood that the dual LTE technology of this embodiment is only an exemplary one, and other technologies may also be used to implement dual LTE functions.
  • control module 804 is further configured to: detect connectivity of the first communication module 801 and the second communication module 802, establish a routing rule; when detecting a data service, establish at least one link, and calculate The split weight of the communication module in the connected state; according to the split weight, the established link is allocated to the communication module in the connected state to perform data service transmission.
  • the user equipment of the embodiment of the present invention is compatible with 3G and 2G.
  • the user equipment may further include at least one WIFI module (not shown) connected to the control module 804, and configured to: connect to the WIFI network for data transmission.
  • the available data transmission interface of the user equipment of this embodiment includes a first LTE interface, a second LTE interface, and a WIFI interface.
  • the first LTE interface corresponds to the first communication module
  • the second LTE interface corresponds to the second communication module
  • the WIFI interface corresponds to the WIFI module.
  • the first LTE interface and the second LTE interface may also be replaced by the first 3G interface and the second 3G interface, respectively, or the first LTE interface and the second LTE interface may be respectively configured by the first 2G interface and the second 2G interface replacement.
  • the WIFI module may be one or more.
  • the interface of the embodiment of the present invention may include: a first LTE interface, a second LTE interface, a first WIFI interface, and a Two WIFI interfaces.
  • control module 804 of the embodiment of the present invention is further configured to: detect the connectivity of each interface in real time; and when the data service is detected, establish At least one link; according to the split weight, the established link is assigned to the interface in the connected state for data service transmission.
  • the working process of the user equipment in the embodiment of the present invention is: in step S40, each interface is opened, and connectivity detection of the link is performed in real time; if network switching occurs, the corresponding interface information is re-set.
  • this step you can choose to set the state of some interfaces to off. For example, because the 2G transmission rate is slow, you can set its corresponding interface to off. Detected shape of the interface When the state is connected, the interface is added to the list of available interfaces; if it is not connected, the interface is removed from the list of available interfaces, or it is not added to the list of available interfaces.
  • real-time detection of link connectivity may be performed by sending a ping message from each interface every 10 seconds, and pinging the destination IP address 114.114.114.114. This address is the address of a fixed DNS server. The maximum length of the ping message is 10 seconds. If the interface does not receive a response, the interface is considered to be in the down state and the interface is not down. If the reply is received within 10 seconds, if the interface is in the down state and the interface status is up, the interface can be offloaded.
  • step S41 the data service is turned on, and one or more links are established to be transmitted through different interfaces.
  • each linked data packet is transmitted through the interface in the UP state according to the initial routing rule, and the data packet is called.
  • the initial routing rules can be established in a uniform manner. That is, according to the 1:1 split weight, the number of links to be transmitted allocated by the interface in the connected state is the same.
  • step S41 the offload weights of the interfaces in the connected state are also calculated to adjust the number of transmission links of each interface. It should be understood that the calculation of the split weight may be performed according to the foregoing Embodiment 1 or Embodiment 2, and details are not described herein again.
  • step S42 according to the split weight, the established link is allocated to the interface in the connected state to perform data service transmission.
  • the newly established link here includes two cases: one is to download the same data resource, the newly established link; the other is the newly established link when downloading other data resources.
  • the established link can be allocated to each interface according to the split weight for data service transmission. Therefore, in the embodiment of the present invention, a current routing rule can be established according to the split weight. The difference between the current routing rule and the initial routing rule is that the current routing rule allocates the newly established link to each of the connected state interfaces according to the calculated split weight.
  • the linked data packet is marked by means of marking the link data packet.
  • the current routing rule formed by marking the packet according to the split weight is marked by means of marking the link data packet.
  • the first data packet of each link is marked, and the subsequent data packets are transmitted according to the interface of the first data packet.
  • the data packet is first acquired, and it is determined whether the link tracking state of the data packet is a preset state.
  • the preset state is the new state, that is, whether it is the first data packet of the link;
  • the packet is marked according to the interface to which the link is assigned, and the tag value is saved. Can be saved to the corresponding link tracking tag; if it is not the default state (ie not the first packet), the tag value of the first packet of the saved link is assigned to the packet, and according to the tag of the packet Value, the packet is assigned to the corresponding interface for transmission.
  • the data packet tag value in the embodiment of the present invention has a double meaning.
  • the link to which the data packet belongs can be determined, and second, it can be determined which interface the data packet should go to.
  • the data transmission method of the embodiment of the present invention may further include: in the transmission process of the data service, according to the rate and time of the interface, because the network environment is changed in real time, and the connectivity state, rate, and the like of each interface are also changed in real time. Delay, adjust the split weight; and adjust the number of links assigned to each interface in the connected state based on the adjusted split weight.
  • the data service to be downloaded may be divided into a plurality of data blocks of the same size or different size to be respectively transmitted through the established multiple links.
  • a 10M-sized APK can be divided into 10 data blocks, each of which has a size of 1M, and each data block is transmitted through a link.
  • the maximum number of links that the terminal 100 can establish is not necessarily equal to the number of divided data blocks, for example, the data block is 10, and the maximum number of links established is 5. Then when the transfer of a link is completed, a new link can be created to continue to transfer the remaining data. Therefore, adjusting the number of links allocated to the interface in the connected state in the embodiment of the present invention includes: allocating the newly created link to the interface in the connected state according to the adjusted split weight.
  • a link that has been assigned to the corresponding interface is transmitted through the interface until completion. However, if the interface in the connected state becomes disconnected during the transmission process. In the state, the link transmitted through the interface is aborted, and the data transmission of the link is continued by creating a new link. For example, if the data size of a link needs to be transmitted is 1M, when the transmission to 0.5M size, the corresponding transmission interface is abnormally interrupted, the change will be reflected in the current routing rule, the traffic weight will change, and the new link will be created. After that, the newly created link will be assigned to the corresponding interface according to the current routing rule to continue the transmission of the remaining 0.5M data.
  • the data transmission method of the embodiment of the present invention may further include: after the data service is transmitted, the interface is closed, and the current routing rule is deleted.
  • the user equipment of the embodiment of the invention has the dual LTE simultaneous download (dual-channel download) function, and is based on the interface rate splitting, which greatly optimizes the distribution ratio of the data stream, realizes simultaneous data transmission by using multiple data channels, and reduces the delay. Time, packet loss rate, congestion rate, etc., improve the user experience.
  • the user equipment of the embodiments of the present invention may be implemented in each form.
  • the user equipment described in the embodiments of the present invention may include, for example, a mobile phone, a mobile phone, a smart phone, a notebook computer, a digital broadcast receiver, a PDA (Personal Digital Assistant), a PAD (Tablet), a PMP (Portable Multimedia Player).
  • Mobile terminal navigation device, and the like.
  • an embodiment of the present invention further provides a multi-channel routing method, including:
  • Step S50 detecting connectivity of one or more interfaces
  • Step S51 Calculate the offload weight according to the rate detection result of the interface, and allocate one or more links established by the transport data service to the interface in the connected state according to the split weight to perform data service transmission.
  • an embodiment of the present invention further provides a data transmission apparatus, including:
  • the first detecting module 110 is configured to: detect connectivity of each interface in real time;
  • the first offload weight calculation module 111 is configured to: when detecting a data service, establish at least one link;
  • the first offload transmission module 112 is configured to: according to the offloading weight, allocate the established link to the interface in the connected state to perform data service transmission.
  • the embodiment of the present invention further provides another data transmission apparatus, including:
  • the second detecting module 120 is configured to: detect connectivity of each interface in real time;
  • the second offload weight calculation module 121 is configured to: when detecting a data service, establish at least one link;
  • the second offload transmission module 122 is configured to: according to the 1:1 offload weight or the offload weight calculated based on the interface rate, allocate the established link to the interface in the connected state to perform data service transmission. It should be understood that the implementation details and principles of the foregoing embodiments are applicable to the data transmission apparatus of this embodiment, and details are not described herein again.
  • the embodiment of the invention further provides a computer readable storage medium storing computer executable instructions, the computer executable instructions being implemented by the processor to implement the data transmission method.
  • the embodiment of the invention further provides a computer readable storage medium storing computer executable instructions, the computer executable instructions being implemented by the processor to implement the multi-channel routing method.
  • Any process or method description in the flowcharts or otherwise described in the embodiments of the invention may be understood to represent code that includes one or more executable instructions for implementing the steps of a particular logical function or process. Modules, segments or portions, and the scope of the embodiments of the invention includes additional implementations, in which the functions may be performed in a substantially simultaneous manner or in an inverse order depending on the functions involved, in the order shown or discussed. This should be understood by those skilled in the art of the embodiments of the present invention. Further, in the description of the embodiments of the present invention, the meaning of "a plurality" is two or more unless otherwise stated.
  • the embodiment of the present invention is based on interface rate offloading, or based on interface rate and delay splitting, to simultaneously transmit data by using multiple data channels, greatly optimizing the proportion of data stream allocation, and reducing interface congestion, delay, and packet loss rate. , improved user experience.

Abstract

本文公布一种数据传输方法、装置、多通道路由方法及用户设备，所述数据传输方法包括：实时检测每个无线数据传输接口的连通性；检测到有数据业务时，建立至少一条链接；根据分流权重，将所述建立的链接分配到所述处于连通状态的无线数据传输接口以进行数据业务的传输。

Description

数据传输方法、装置、多通道路由方法及用户设备 技术领域
本申请涉及但不限于通信技术领域，尤指一种数据传输方法、装置、多通道路由方法及用户设备。
背景技术
随着移动通信技术的发展，先进的蜂窝网络(例如，基于LTE标准(长期演进，一些“4G”网络所使用的标准)的网络)正在全世界部署。由于引入了OFDM(Orthogonal Frequency Division Multiplexing，正交频分复用)和MIMO(Multi-Input&Multi-Output，多输入多输出)等关键技术，利用LTE标准可显著增加频谱效率和数据传输速率。
终端利用蜂窝网络进行数据传输(例如，下载和上传)可极大改善用户的上网体验。但随着技术的发展，高清影视、游戏等大流量的应用层出不穷，利用单数据通道进行数据传输，由于数据通道的最大容量限制，仍不能满足用户日益增长的对传输速率的需求。
发明内容
以下是对本文详细描述的主题的概述。本概述并非是为了限制权利要求的保护范围。
本文提供一种数据传输方法、装置、多通道路由方法及用户设备。
第一方面，提供一种数据传输方法，适用于具有多个无线数据传输接口的终端，包括：
实时检测每个无线数据传输接口的连通性；
检测到有数据业务时，建立至少一条链接；
根据分流权重，将所述建立的链接分配到所述处于连通状态的无线数据传输接口以进行数据业务的传输。
在一个实施例中，所述分流权重为1:1分流权重，或基于接口速率和接口时延计算得到分流权重。
在一个实施例中，所述方法还包括：
在所述数据业务的传输过程中，根据接口速率和接口时延，调整分流权重；
基于调整后的分流权重，调整分配到每个处于连通状态的无线数据传输接口的链接数。
所述调整分配到处于连通状态的无线数据传输接口的链接数包括：
将新建的链接按照调整后的分流权重分配到处于连通状态的无线数据传输接口。
在一个实施例中，所述方法还包括：
若传输过程中，处于连通状态的无线数据传输接口变为未连通状态，则通过该无线数据传输接口传输的链接被中止，而通过新建链接的方式继续该链接的数据传输。
在一个实施例中，所述实时检测每个无线数据传输接口的连通性包括：每隔第一预设时间，从每个无线数据传输接口发一个因特网包探索器ping报文到预设服务器；
等待第二预设时间，若未收到回复信息，则该无线数据传输接口处于未连通状态，若收到回复信息，则该无线数据传输接口处于连通状态。
在一个实施例中，所述方法还包括：每隔第三预设时间，获取无线数据传输接口的字节数的变化以作为无线数据传输接口的当前速率。
在一个实施例中，所述方法还包括：检测无线数据传输接口是否处于拥塞状态，若是，则判断所述无线数据传输接口的当前速率是否大于所述无线数据传输接口的历史最大速率，若不大于历史最大速率，则将当前速率加上第一预设值后与历史最大速率比较，若小于历史最大速率，则将当前速率作为所述无线数据传输接口的实时最大速率；
若所述无线数据传输接口不处于拥塞状态，且当前速率大于历史最大速率，则将当前速率作为所述无线数据传输接口的实时最大速率，并更新历史 最大速率。
在一个实施例中，所述基于接口速率和接口时延计算得到分流权重包括：将实时最大速率与第二预设值进行比较，若实时最大速率大于所述第二预设值，则根据无线数据传输接口的实时最大速率计算分流权重；若实时最大速率不大于所述第二预设值，则根据无线数据传输接口的延时来确定分流权重。
在一个实施例中，任一无线数据传输接口的分流权重为该无线数据传输接口的实时最大速率与所有无线数据传输接口的实时最大速率之和的比值。
在一个实施例中，所述方法还包括：当通过一无线数据传输接口接收到一个同步确认syn+ack报文时，判断是否处于同步请求SYN_SEND状态，若处于，则获取当前的系统时间，并将获取的当前系统时间减去系统发送同步syn报文的时间，获得的时间差为所述无线数据传输接口的时延。
在一个实施例中，所述方法还包括：每隔第四预设时间通过每一无线数据传输接口分别发一组ping报文，并根据接收到回复信息的时间差获取无线数据传输接口的时延。
在一个实施例中，无线数据传输接口的时延与该无线数据传输接口的分流权重成反比。
在一个实施例中，所述方法还包括：获取每一链接的数据包，并判断获取的数据包的链接跟踪状态是否为第一个数据包；
如果为第一个数据包，则根据分流权重，对该数据包进行标记，并将标记值保存；如果不是第一个数据包，则将保存的该链接的第一个数据包的标记值赋予该数据包；
根据数据包的标记值，将数据包分配至相应的无线数据传输接口进行传输。
在一个实施例中，所述多个无线数据传输接口包括以下接口中的至少一者：第一LTE接口、第二LTE接口、第一无线保真WIFI接口和第二WIFI接口。
第二方面，提供一种数据传输装置，适用于具有多个无线数据传输接口的终端，包括：
第一检测模块，设置为：实时检测每个无线数据传输接口的连通性；
第一分流权重计算模块，设置为：检测到有数据业务时，建立至少一条链接；
第一分流传输模块，设置为：根据分流权重，将所述建立的链接分配到所述处于连通状态的无线数据传输接口以进行数据业务的传输。
第三方面，提供一种数据传输方法，适用于具有多个无线数据传输接口的终端，包括：
实时检测每个无线数据传输接口的连通性；
检测到有数据业务时，建立至少一条链接；
根据1:1分流权重或基于接口速率计算得到分流权重，将建立的链接分配到处于连通状态的无线数据传输接口以进行数据业务的传输。
第四方面，提供一种数据传输装置，适用于具有多个无线数据传输接口的终端，包括：
第二检测模块，设置为：实时检测每个无线数据传输接口的连通性；
第二分流权重计算模块，设置为：检测到有数据业务时，建立至少一条链接，并根据处于连通状态的无线数据传输接口的实时速率计算每个处于连通状态的无线数据传输接口的分流权重；
第二分流传输模块，设置为：根据1:1分流权重或基于接口速率计算得到分流权重，将建立的链接分配到处于连通状态的无线数据传输接口以进行数据业务的传输。
第五方面，提供一种多通道路由方法，适用于具有多个无线数据传输接口的终端，包括：
检测一个或多个无线数据传输接口的连通性；根据接口的速率检测结果计算分流权重，根据分流权重将传输数据业务建立的一条或多条链接分配到处于连通状态的无线数据传输接口以进行数据业务的传输。
第六方面，提供一种用户设备，包括第一用户识别模块和第二用户识别模块，还包括：
第一通信模块；
第二通信模块；
切换模块；和
控制模块，设置为：根据用户的操作指令，输出第一控制指令和第二控制指令；
所述控制模块还设置为：根据所述第一控制指令，控制所述切换模块，使得所述第一用户识别模块或所述第二用户识别模块与所述第一通信模块连接；
所述第一通信模块设置为：建立与LTE网络的数据业务连接，以进行数据业务传输；
所述控制模块还设置为：根据所述第二控制指令，控制所述切换模块，使得所述第一用户识别模块或所述第二用户识别模块与所述第二通信模块连接；
所述第二通信模块设置为：建立与LTE网络的数据业务连接，以进行数据业务传输；
所述控制模块还设置为：检测第一通信模块和第二通信模块的连通性；检测到有数据业务时，建立至少一条链接；根据分流权重，将建立的链接分配到处于连通状态的通信模块以进行数据业务的传输。
在一个实施例中，所述用户设备还包括：
至少一个WIFI模块，设置为：连接到WIFI网络以进行数据传输；
所述控制模块，还设置为：实时检测每个无线数据传输接口的连通性；检测到有数据业务时，建立至少一条链接；根据分流权重，将建立的链接分配到处于连通状态的无线数据传输接口以进行数据业务的传输；
所述无线数据传输接口包括：与第一通信模块相对应的第一LTE接口、与第二通信模块相对应的第二LTE接口、以及与至少一个WIFI模块对应的至少一个WIFI接口。
第七方面，一种计算机可读存储介质，存储有计算机可执行指令，所述 计算机可执行指令被处理器执行时实现上述方法。
实施本发明实施例的数据传输方法、装置、多通道路由方法及用户设备，具有以下有益效果：基于接口速率分流，或基于接口速率和时延分流，实现利用多条数据通道同时传输数据，极大的优化了数据流的分配比例；由于速率在一定程度上体现了接口带宽的大小，带宽大的接口本应承载更多的数据流，从而不容易出现大量数据从带宽小的接口流通，造成带宽小的接口的拥塞，造成延时大，丢包的状况，提高了用户体验；另一方面，可突破当前市场只能利用单个用户识别模块来进行数据业务传输的局限，提高数据传输的最大速率，让用户可通过更优的链路进行数据业务传输。
在阅读并理解了附图和详细描述后，可以明白其他方面。
附图概述
下面将结合附图及实施例对本发明实施例进行说明，附图中：
图1是本发明一实施例的终端的结构示意图；
图2是本发明一实施例的操作系统的架构图；
图3是本发明一实施例的网络架构示意图；
图4是本发明一实施例的数据传输方法的流程示意图；
图5是本发明一实施例中对接口连通性进行检测的流程示意图；
图6是本发明一实施例中测量实时最大速率以及根据接口的实时最大速率和时延计算分流权重的流程示意图；
图7是本发明一实施例中对数据包进行标记的流程示意图；
图8是本发明一实施例的数据传输方法的流程图；
图9是本发明一实施例的具有双LTE同时下载(双通道下载)功能的用户设备的结构示意图；
图10是本发明一实施例的用户设备的工作流程图；
图11是本发明一实施例的多通道路由方法流程示意图；
图12是本发明一实施例的数据传输装置示意图；
图13是本发明另一实施例的数据传输装置示意图。
本发明的实施方式
现对照附图详细说明本发明的实施方式。
参见图1为本发明一实施例的终端的结构示意图。终端100可以具有诸如个人计算机(例如，膝上型计算机、上网本计算机、平板计算机等)、蜂窝电话、个人数字助理(PDA)、数字录像机(DVR)、因特网家电、游戏控制台、电子阅读机等配置中的任意一种。终端100的架构可以包括处理器1、通信模块2、存储器4和用户识别模块5。应理解，此外，终端100还可包括：显示屏、扬声器、听筒、相机、电源管理等等，用于执行相应的功能。
存储器4可以存储由处理器1执行的操作系统、处理和控制操作的软件程序等等。存储器4可以包括至少一种类型的存储介质，所述存储介质包括闪存、硬盘、多媒体卡、卡型存储器(例如，SD或DX存储器等等)、随机访问存储器(RAM)、静态随机访问存储器(SRAM)、只读存储器(ROM)、电可擦除可编程只读存储器(EEPROM)、可编程只读存储器(PROM)、磁性存储器、磁盘、光盘等等。而且，终端100可以与通过网络连接执行存储器4的存储功能的网络存储装置协作。
处理器1是终端通信功能和系统控制的核心，主要负责完成两方面的工作，一是完成协议栈物理层的基带处理能力，包括数字联合检测、调制/解调、交织/解交织、信道编码/译码、脉冲整形等；二是处理操作系统、驱动软件、人机界面、应用程序等。同时处理器还有管理外设和接口的能力。
在本发明的实施例中，通信模块2通常包括一个或多个组件，其允许终端100与无线通信系统或网络之间的无线电通信。例如，通信模块2包括第一通信模块21、第二通信模块22、第三通信模块23等等。在一个实施例中，第一通信模块21可为WIFI(WIreless-Fidelity，无线保真)模块。WIFI模块根据WIFI方法执行通信，由此，本发明实施例的终端100可通过WIFI网络进行数据传输。
第二通信模块22可为移动通信模块。移动通信模块被配置为将通信交换信令发射到无线通信系统中的一个或多个基站或其它装置，或从一个或多个 基站或其它装置接收通信交换信令。例如，移动通信模块2可包括发射器、接收器、发射链组件及接收链组件中的一者或多者。在一些实施例中，移动通信模块2可为根据诸如IEEE、Zigbee、3G(第三代)、3GPP(第三代合作项目)和LTE(长期演进)这样的通信标准执行通信的芯片。由此，本发明实施例的终端100可通过移动通信网络(例如，2G、3G或4G等移动通信网络)进行数据传输。
第三通信模块23同样可为WIFI模块或移动通信模块。由此，本发明实施例的终端100可包括一个或多个WIFI模块、一个或多个移动通信模块。
应理解，通信模块2还可包括蓝牙模块、NFC(Near Field Communication，近距离无线通信技术)模块等等，以实现相应的无线通信功能。
用户识别模块5可管理与第一技术标准相关联的用户。用户识别模块5可具有一个或多个相关的电话号码。终端100可通过用户识别模块5和移动通信模块经由基站在网络中通信。
在一个实施例中，用户识别模块5可为一个或多个。应理解，用户识别模块5的数量是和移动通信模块的数量相关联的。例如，当终端100包括两个移动通信模块时，一般包括两个用户识别模块5，以实现双卡双通；当终端100包括一个移动通信模块时，可包括一个(单卡单通)或两个(双卡单待)用户识别模块5。
参见申请号为201510671407.1、201510675596.X以及申请号为201510827714.4的发明专利申请，其分别详细介绍了采用不同的技术方案实现终端可利用双LTE进行数据传输。基于上述三篇专利，本发明实施例中的终端100可实现利用一条或两条LTE数据通道进行数据传输。应理解，也可采用其他的方式实现双LTE进行数据传输，例如，直接采用具有此功能的芯片、外接用户识别模块等方式。
基于上述的描述，本发明实施例的终端100至少可利用以下方式中的一者或多者进行数据传输：WIFI数据通道(可为一条或多条)、LTE数据通道(可为一条或多条)、3G数据通道(可为一条或多条)、2G数据通道(可为一条或多条)。应理解，在某些情况下，一些数据通道并不能共存，例如，对于同一移动通信模块，其只能提供LTE数据通道或3G数据通道，而不能 同时提供这两者。但对于不同的移动通信模块，即可分别同时提供LTE数据通道和3G数据通道。
应理解，当WIFI数据通道为多条时，终端100中包括多个WIFI模块。
在本发明的实施例中，在存储器4中可以存储多个操作系统，操作系统包括但不限于Windows、Linux、Unix、Mac OS X、IOS、Solaris、Android等。
在一个实施例中，图1所示的存储于存储器4中，并由处理器1处理执行的操作系统的架构如图2所示，其包括：驱动层21、内核层22和用户层23。其中，内核层22包括：网络接口层221、网络层222、TCP(Transmission Control Protocol，传输控制协议)/UDP(User Data Protocol,用户数据报协议)223和内核接口224。
参见图3为本发明一实施例的网络架构示意图。终端100可同时通过基站200、无线接入点(AP)300等方式连接到无线核心网，再连接到专网、因特网(Internet)实现数据的传输。另一方面，多个终端100之间还可通过基站、无线接入点连接到无线核心网，从而实现相互间的数据传输。
实施例1
基于上述终端100和网络架构，本发明实施例提供一种数据传输方法。本发明实施例的数据传输是基于链接的，即当有数据业务需要传输时，建立一条或多条(两条或两条以上)链接，每一链接用于传输一定大小的数据包，从而完成整个数据的传输。
参见图4，本发明实施例的数据传输方法包括：
步骤S1、实时检测每个接口的连通性。
应理解，检测接口的连通性即是检测数据通道是否连通。例如，检测WIFI接口的连通性，即是检测是否可以通过WIFI数据通道接入到WIFI网络进行数据传输。
在本发明的实施例中，如没有特别指出，“接口”即指无线数据传输接口，包括WIFI接口、LTE接口、3G接口等等。且接口的个数可为多个，例如，接口可包括两个LTE接口和两个WIFI接口。
在一个实施例中，参见图5，接口连通性检测按照以下方式进行：
步骤S11，每隔第一预设时间(例如，10秒)，从每个接口发一个ping(Packet Internet Groper，因特网包探索器)报文，ping的目的ip地址为一固定DNS(Domain Name System，域名系统)服务器的地址，例如，114.114.114.114。
步骤S12，等待第二预设时间(例如，10秒)，若未收到回复，则执行步骤S13；若收到回复，则执行步骤S14；
步骤S13，将该接口标记为未连通(down)。
步骤S14，将该接口标记为连通(UP)。
在一些实施例中，步骤13包括：若接口之前是连通状态，等待预设时长未收到回复，则将该接口标记为未连通。步骤14包括：若接口之前是未连通状态，等待预设时长收到回复，则认为该链路已连通，将该接口标记为连通。
若某一接口为连通(UP)状态，则可将该接口添加到可用接口列表中；若某一接口为未连通(down)，则不将其添加到可用接口列表中或将其从可用接口列表中删除。
应理解，接口的连通性还可通过其它的方式进行，例如，发送空数据包等方式。
步骤S2、检测到有数据业务时，建立至少一条链接。
建立链接是指在终端100与其它终端或服务器之间建立链接，例如，通过三次握手建立链接。链接的数量可根据实际情况设定，例如，终端100可支持的最大链接数、数据业务的数据量大小等。
S3、根据分流权重，将建立的链接分配到处于连通状态的接口以进行数据业务的传输。
在本发明的实施例中，分流权重包括1:1分流权重和根据接口速率和接口时延计算得到分流权重。
在本发明的实施例中，可根据接口的连通性建立一个初始的路由规则。该初始的路由规则可按照均分的方式建立，即按照1:1的分流权重，使得处于连通状态的接口分配的待传输链接数相同。例如，若有三个接口处于连通 状态，终端100可建立的最大链接数为9条，则初始路由规则为第1、2和3条链接通过第一接口传输，第4、5和6条链接通过第二接口传输，第7、8和9条链接通过第三接口传输。由此，本发明的实施例中，在传输数据时，首先依据初始的路由规则进行数据的传输。
在数据的传输过程中，根据接口速率和接口时延调整每个接口的分流权重。其中，每隔一第三预设时间(例如，1秒)对接口进行测速，每隔一第五预设时间(例如，5秒)根据接口对应的速率和时延计算分流权重。在一些实施例中，也可以仅根据接口的实时速率计算分流权重而不考虑时延。
在本发明的实施例中，按照以下方式进行接口的速率检测：
每隔第三预设时间(例如，1秒)，获取接口字节数的变化作为接口的当前速率。其中，若为第一次检测某一接口的速率，则将检测得到的字节数保存。若不是第一次检测某一接口的速率，则将获取得到的接口字节数减去前一次获取得到的接口字节数，得到的差值再除以两次检测的时间即为该接口的当前速率。
如图6所示，在本发明的实施例中，根据接口的速率和时延计算分流权重采用以下方式：
步骤S601，对接口进行测速；
步骤S602，检测接口是否处于拥塞状态，若是，则执行步骤S603；若否，则执行步骤S605，
步骤S603，判断当前的实时速率比之前统计的历史最大速率(max_speed)是否更小，如果更小，当前实时速率加上一第一预设值(例如，100KB/s)后是否小于历史最大速率，如果是，则说明网络环境发生了较大的变换，执行步骤S604；如果否，执行步骤S605；
步骤S604,将当前实时速率赋值给实时最大速率；
步骤S605，接口不处于拥塞状态，且当前实时速率大于历史最大速率，则执行步骤S606；
步骤S606，将当前实时速率赋值给实时最大速率和历史最大速率。
步骤S611，根据延时和速率计算分流权重，包括：
步骤S612，将实时最大速率与一第二预设值(例如，50kb/s)进行比较，若实时最大速率大于所述第二预设值，则执行步骤S613；，若实时最大速率不大于所述第二预设值，则执行步骤S614；
步骤S613，根据接口的实时最大速率计算分流权重。
步骤S614，检测接口时延，若检测到，执行步骤S615；若检测不到，则表示出现异常，执行步骤S616；
步骤S615，根据接口的延时来确定分流权重；
步骤S616，按照1:1分流权重进行分流。
在本发明的实施例中，检测接口是否处于拥塞状态，是通过检测接口的时延获知的，接口的时延检测方法有如下两种方式：
方式一：每隔第四预设时间(例如，5秒)通过接口发一组ping报文(例如，每组5个报文，每个报64Bytes)，并根据接收到回复的时间差获取接口的时延。
方式二：通过TCP三次握手计算时延，其中，当接收到一个同步确认syn+ack报文时，判断是否处于同步请求SYN_SEND状态，若处于，则获取当前的系统时间，并将获取的当前系统时间减去系统发送同步syn报文的时间，获得一时间差。该时间差即为接口时延。
若时延大于或等于一时延预设值(例如，1000ms)，则将该接口标记为处于拥塞状态。若时延小于该时延预设值，则检测此链接的syn报文是否重传过，若重传过，则将该接口标记为处于拥塞状态，将时延值设定为该时延预设值；若未重传过，则接口不处于拥塞状态，将计算出的时延值作为接口的时延。
在本发明的实施例中，当根据接口的速率计算分流权重时，可按照以下公式进行计算：
第i个接口的分流权重＝第i个接口的实时最大速率/(第1个接口的实时最大速率+第2个接口的实时最大速率+……+第i个接口的实时最大速率+……)
应理解，上述按照接口速率计算分流权重还可采用其它的方式，例如， 预先设定速率范围与分流权重的关系，当速率在第一范围时，分流权重为20％，而在第二范围时，分流权重为80％等等方式。
当根据时延计算分流权重时，时延与分流权重成反比，例如，第一接口的时延为D1、第二接口的时延为D2，则第一接口的分流权重为D2/(D1+D2)，第二接口的权重为D1/(D1+D2)。
应理解，还可采用其它的方式设定时延与分流权重的关系，例如，预先设定时延超过一定值时，将其分流权重设为0等方式。
在一个实施例中，若出现预设异常情况，则默认按1:1的权重进行分流。例如，预设异常情况包括但不限于：当实时最大速率不大于预设值，而未检测到接口的时延时。
在本发明的实施例中，通过计算调整了分流权重后，即可根据新的分流权重将数据传输过程中新建立的链接分配到每个接口以进行数据业务的传输。由此，本发明实施例中，可根据分流权重建立一当前路由规则。当前路由规则与初始路由规则的区别在于，当前路由规则中是根据计算得到的分流权重，将建立的链接分配到每个处于连通状态接口。例如，若接口为3个，建立的链接数为9条，计算得到的分流权重为3:4:2，则分配到第一接口进行传输的链接数调整为3条，分配到第二接口进行传输的链接数调整为4条，分配到第三接口进行传输的链接数调整为2条。
为了保证建立的链接按照分流权重通过相应的接口进行传输，本发明实施例中，采用标记链接数据包的方式，对链接的数据包进行标记。由此，在传输时，根据数据包的标记值使得不同链接可走相应的接口进行传输。
参见表1，为一实施例中，根据分流权重对数据包进行标记后形成的路由规则。
表1
链接 Mark值 接口
1 0X01 第一接口(例如，WIFI接口)
2 0X02 第二接口(例如，第一LTE接口)
3 0X03 第三接口(例如，第二LTE接口)
…… …… ……
表1中的mark(标记)值是每个链接中的数据包的标记值。在本发明的实施例中，每条链接的第一个数据包被进行标记，而后面的数据包则按照第一个数据包的接口进行传输。
参见图7，在进行标记时：
步骤S21，获取数据包，并判断该数据包的链接跟踪状态是否为预设状态。在这里，预设状态为new状态，即是否为该链接的第一个数据包；如果是，则执行步骤S22；如果否，则执行步骤S24；
步骤S22，为预设状态(即为第一个数据包)，根据该链接被分配到的接口，对该数据包进行标记；
步骤S23，将标记值保存。可保存到对应链接跟踪标记中；执行步骤S25；
步骤S24，不是预设状态(即不是第一个数据包)，则将保存的该链接的第一个数据包的标记值赋予该数据包，并根据数据包的标记值，将数据包分配至相应的接口进行传输。
步骤S25，重新依据标记值查找路由。
由此，本发明实施例中的数据包标记值具有双重意义，一是可以确定该数据包所属的链接，二是可以确定该数据包应该走哪个接口进行传输。
由于网络环境是实时变化的，每个接口的连通状态、速率等也是实时变化的，因此，本发明实施例的数据传输方法还可包括：在数据业务的传输过程中，根据接口的速率和时延，调整分流权重；并基于调整后的分流权重，调整分配到每个处于连通状态的接口的链接数。
应理解，在进行数据传输时，可将待下载的数据业务划分为多个大小相同或不同的数据块，以分别通过建立的多条链接进行传输。例如，可将一个10M大小的APK，划分为10个数据块，每个数据块的大小为1M，且每个数据块通过一条链接进行传输。
在一些实施例中，终端100可建立的最大链接数不一定和划分的数据块相等，例如，数据块为10，而建立的最大链接数为5。则当完成某一链接的传输完成时，相应的即可新建一条链接以继续传输剩下的数据。由此，本发 明实施例中调整分配到处于连通状态的接口的链接数包括：将新建的链接按照调整后的分流权重分配到处于连通状态的接口。
在本发明的实施例中，对于已经被分配到相应接口的链接，会通过该接口进行传输直到完成。但若在传输过程中，处于连通状态的接口变为未连通状态，则通过该接口传输的链接被中止，而通过新建链接的方式继续该链接的数据传输。例如，某一链接需要传输的数据大小为1M，当传输到0.5M大小的时候，相应的传输接口发生异常中断，则这种变化将体现在当前路由规则中，分流权重会发生改变，新建链接后，将按照当前路由规则将该新建的链接分配到相应的接口，以继续进行剩下0.5M数据的传输。本发明实施例的数据传输方法还可包括：数据业务传输完成后，关闭接口，将当前路由规则删除。
通过本发明实施例的数据传输方法，基于接口速率和时延进行分流，实现利用多条数据通道同时传输数据，极大的优化了数据流的分配比例；由于速率在一定程度上体现了接口带宽的大小，带宽大的接口本应承载更多的数据流，从而不容易出现大量数据从带宽小的接口流通，造成带宽小的接口的拥塞，造成延时大，丢包的状况，提高了用户体验。
实施例2
本发明的实施例2和上述实施例的区别在于，在实施例2中计算分流权重时，仅基于接口的速率，而不考虑时延。参见图8，该实施例的数据传输方法包括：
步骤S10、实时检测每个接口的连通性。
步骤S20、检测到有数据业务时，建立至少一条链接。
应理解，步骤S10和步骤S20的实现和细节和上述实施例的步骤S1和步骤S2是相同的，在此不再赘述。
步骤S30、根据1:1分流权重或基于接口速率计算得到分流权重，将建立的链接分配到处于连通状态的接口以进行数据业务的传输。在本发明的实施例中，分流权重包括1:1分流权重和基于接口速率计算得到分流权重。
应理解，本发明实施例中1:1分流权重的实施例细节和上述实施例是相同的，在此不再赘述。
在本发明的该实施例中，在计算调整分流权重时，仅考虑接口的速率。由于速率在一定程度上体现了接口带宽的大小，根据速率的大小进行分流权重的计算，可以使得分流权重的计算更简单，且还可避免拥塞。
每隔一第三预设时间(例如，1秒)对接口进行测速，并基于接口的速率计算分流权重或每隔第五预设时间(例如，5秒)根据接口对应的速率计算分流权重。
在本发明的实施例中，按照以下方式进行接口的速率检测：
每隔第三预设时间(例如，1秒)，获取接口字节数的变化作为接口的当前速率。其中，若为第一次检测某一接口的速率，则将检测得到的字节数保存。若不是第一次检测某一接口的速率，则将获取得到的接口字节数减去前一次获取得到的接口字节数，得到的差值再除以两次检测的时间即为该接口的当前速率。
由于在实际中，接口的实时速率不足以反应接口所处的网络环境的变化，因此，在本发明的一实施例中，根据接口的实时最大速率计算分流权重，接口的实时最大速率的确定方法为：
对接口进行测速，并检测接口是否处于拥塞状态，若是，则判断当前的实时速率比之前统计的历史最大速率(max_speed)是否更小，如果更小，当前实时速率加上一第一预设值(例如，100KB/s)后是否小于历史最大速率，如果是，则说明网络环境发生了较大的变换，将当前实时速率赋值给实时最大速率；
若接口不处于拥塞状态，且当前实时速率大于历史最大速率，则将当前实时速率赋值给实时最大速率和历史最大速率。
在本发明的实施例中，检测接口是否处于拥塞状态，是通过检测接口的时延获知的，接口的时延检测方法有如下两种方式：
方式一：每隔第四预设时间(例如，5秒)通过接口发一组ping报文(例如，每组5个报文，每个报64Bytes)，并根据接收到回复的时间差获取接 口的时延。
方式二：通过TCP三次握手计算时延，其中，当接收到一个syn+ack报文时，判断是否处于SYN_SEND状态，若处于，则获取当前的系统时间，并将获取的当前系统时间减去系统发送syn报文的时间，获得一时间差。该时间差即为接口时延。
若时延大于或等于一时延预设值(例如，1000ms)，则将该接口标记为处于拥塞状态。若时延小于该时延预设值，则检测此链接的syn报文是否重传过，若重传过，则将该接口标记为处于拥塞状态，将时延值设定为该时延预设值；若未重传过，则接口不处于拥塞状态。
在本发明的实施例中，当根据接口的实时最大速率计算分流权重时，可按照以下公式进行计算：
第i个接口的分流权重＝第i个接口的实时最大速率/(第1个接口的实时最大速率+第2个接口的实时最大速率+……+第i个接口的实时最大速率+……)
应理解，上述按照接口速率计算分流权重还可采用其它的方式，例如，预先设定速率范围与分流权重的关系，当速率在第一范围时，分流权重为20％，而在第二范围时，分流权重为80％等等方式。
在本发明的实施例中，通过计算调整了分流权重后，即可根据新的分流权重将数据传输过程中新建立的链接分配到每个接口以进行数据业务的传输。应理解，本发明实施例和上述实施例的区别仅在于，本实施例中，在计算调整分流权重时，仅考虑接口速率，其它实施细节和原理和上述实施例是相同的，在此不再赘述。
通过本发明实施例的数据传输方法，基于接口速率分流，实现利用多条数据通道同时传输数据，极大的优化了数据流的分配比例；由于速率在一定程度上体现了接口带宽的大小，带宽大的接口本应承载更多的数据流，从而不容易出现大量数据从带宽小的接口流通，造成带宽小的接口的拥塞，造成延时大，丢包的状况，提高了用户体验。
实施例3
参见图9为本发明一实施例的具有双LTE同时下载(双通道下载)功能的用户设备的结构示意图，其包括：包括第一用户识别模块206、第二用户识别模块306、第一通信模块801、第二通信模块802、切换模块803、控制模块804、应用程序处理模块205、麦克风500、编解码器204、数字信号处理芯片203、听筒600。
其中，第一通信模块801包括：第一协议栈201、第一射频202。第二通信模块802包括第二协议栈301和第二射频305。
应用程序处理模块205，设置为：提供用户交互接口，并将用户的操作指令传输给控制模块804。
控制模块804，设置为：根据用户的操作指令，输出第一控制指令和第二控制指令。
控制模块804还设置为：根据第一控制指令，控制切换模块803，使得第一用户识别模块206或第二用户识别模块306与第一通信模块801连接。
第一通信模块801设置为：建立与4G网络的数据业务连接，以进行数据业务传输，以及通过所述4G网络建立通话连接，以进行语音传输。
控制模块804还设置为：根据第二控制指令，控制切换模块803，使得第一用户识别模块206或第二用户识别模块306与第二通信模块802连接。
第二通信模块802设置为：建立与4G网络的数据业务连接，以进行数据业务传输。
在进行语音传输时，麦克风500，设置为：采集语音信号；编解码器204，设置为：对麦克风500采集到的语音信号进行模数转换；数字信号处理芯片203，设置为：编解码器204模数转换后的信号进行音频处理并传输给第一协议栈201；第一射频202设置为：将经第一协议栈201处理后的信号发送到4G网络。第一射频202还设置为：接收来自4G网络的语音信号，并传输给第一协议栈201；数字信号处理芯片203设置为：将经第一协议栈201处理后的信号进行音频处理并传输给编解码器204；编解码器204设置为：对来自数字信号处理芯片的信号进行模数转换；听筒600，设置为：输出经编解 码器204处理后的语音信号。
在一个实施例中，第一协议栈201为LTE协议栈，4G网络为LTE网络；第二协议栈301为LTE协议栈，4G网络为LTE网络。
由此，该实施例的用户设备可支持双LTE进行数据传输，其实现原理和细节可参照申请号为201510827714.4的发明专利申请。且应理解，该实施例的双LTE技术仅为一示例性的，还可以采用其它的技术实现双LTE功能。
在本发明的实施例中，控制模块804还设置为：检测第一通信模块801和第二通信模块802的连通性，建立路由规则；检测到有数据业务时，建立至少一条链接，并计算处于连通状态的通信模块的分流权重；根据分流权重，将建立的链接分配到处于连通状态的通信模块以进行数据业务的传输。
应理解，在实际中，由于4G LTE是可以向下兼容3G和2G的，因此，本发明实施例的用户设备可兼容3G和2G。另一方面，用户设备还可包括与控制模块804连接的至少一个WIFI模块(图中未示出)，设置为：连接到WIFI网络进行数据传输。由此，该实施例的用户设备的可用数据传输接口包括第一LTE接口、第二LTE接口、WIFI接口。其中，第一LTE接口与第一通信模块相对应，第二LTE接口与第二通信模块相对应，WIFI接口与WIFI模块相对应。当发生网络切换时，第一LTE接口和第二LTE接口还可分别由第一3G接口和第二3G接口替代，或第一LTE接口和第二LTE接口可分别由第一2G接口和第二2G接口替代。应理解，在本发明实施例的用户设备中，WIFI模块可为一个或多个，由此，本发明实施例的接口可包括：第一LTE接口、第二LTE接口、第一WIFI接口和第二WIFI接口。
基于第一LTE接口、第二LTE接口、第一WIFI接口和第二WIFI接口，本发明实施例的控制模块804还设置为：实时检测每个接口的连通性；检测到有数据业务时，建立至少一条链接；根据分流权重，将建立的链接分配到处于连通状态的接口以进行数据业务的传输。
参见图10，本发明实施例的用户设备的工作流程为：在步骤S40中，开启每个接口，并实时进行链路的连通性检测；若发生网络切换，则重新置位对应接口信息。在该步骤中可以选择将某些接口的状态设置为关闭，例如，由于2G传输速率较慢，则可将其对应的接口设置为关闭。检测到接口的状 态为连通时，将该接口添加到可用接口列表中；若为未连通，则将该接口从可用接口列表中删除，或不将其添加到可用接口列表中。
在该步骤中，链路连通性实时检测可采用以下方式：每隔10秒从每个接口发一个ping报文，ping目的ip地址114.114.114.114。该地址为一固定DNS服务器的地址。Ping报文最长等待回复时长为10秒，如果10秒未收到回复，如果接口之前是UP状态，则认为该链路不能上网，将该接口标记为down状态，不对该接口分流。若在10秒内收到回复，如果接口之前是down状态，更改接口状态为up，可对该接口分流。
在步骤S41中，数据业务开启，则建立一条或多条链接，以通过不同的接口传输。传输开始时，根据初始路由规则，通过处于UP状态的接口传输每个链接的数据包，且调用数据包。
该初始的路由规则可按照均分的方式建立。即按照1:1的分流权重，使得处于连通状态的接口分配的待传输链接数相同。
在步骤S41中，还计算处于连通状态的接口的分流权重，以调整每个接口的传输链接数。应理解，分流权重的计算可根据上述实施例1或实施例2的方式进行，在此不再赘述。
在步骤S42、根据分流权重，将建立的链接分配到处于连通状态的接口以进行数据业务的传输。
这里的新建立的链接包括两种情况：一是为下载同一个数据资源，新建立的链接；二是下载其它数据资源时，新建立的链接。
在该步骤中，确定了分流权重后，即可根据分流权重将建立的链接分配到每个接口以进行数据业务的传输。由此，本发明实施例中，可根据分流权重建立一当前路由规则。当前路由规则与初始路由规则的区别在于，当前路由规则中是根据计算得到的分流权重，将新建立的链接分配到每个处于连通状态接口。
为了保证建立的链接按照分流权重通过相应的接口进行传输，本发明实施例中，采用标记链接数据包的方式，对链接的数据包进行标记。根据分流权重对数据包进行标记后形成的当前路由规则。由此，在传输时，根据数据 包的标记值使得不同链接可走相应的接口进行传输。
在本发明的实施例中，每条链接的第一个数据包被进行标记，而后面的数据包则按照第一个数据包的接口进行传输。
参见图7，在进行标记时：首先获取数据包，并判断该数据包的链接跟踪状态是否为预设状态。在这里，预设状态为new状态，即是否为该链接的第一个数据包；
如果为预设状态(即为第一个数据包)，则根据该链接被分配到的接口，对该数据包进行标记，并将标记值保存。可保存到对应链接跟踪标记中；如果不是预设状态(即不是第一个数据包)，则将保存的该链接的第一个数据包的标记值赋予该数据包，并根据数据包的标记值，将数据包分配至相应的接口进行传输。
由此，本发明实施例中的数据包标记值具有双重意义，一是可以确定该数据包所属的链接，二是可以确定该数据包应该走哪个接口进行传输。
由于网络环境是实时变化的，每个接口的连通状态、速率等也是实时变化的，因此，本发明实施例的数据传输方法还可包括：在数据业务的传输过程中，根据接口的速率和时延，调整分流权重；并基于调整后的分流权重，调整分配到每个处于连通状态的接口的链接数。
应理解，在进行数据传输时，可将待下载的数据业务划分为多个大小相同或不同的数据块，以分别通过建立的多条链接进行传输。例如，可将一个10M大小的APK，划分为10个数据块，每个数据块的大小为1M，且每个数据块通过一条链接进行传输。
在一些实施例中，终端100可建立的最大链接数不一定和划分的数据块数相等，例如，数据块为10，而建立的最大链接数为5。则当完成某一链接的传输完成时，相应的即可新建一条链接以继续传输剩下的数据。由此，本发明实施例中调整分配到处于连通状态的接口的链接数包括：将新建的链接按照调整后的分流权重分配到处于连通状态的接口。
在本发明的实施例中，对于已经被分配到相应接口的链接，会通过该接口进行传输直到完成。但若在传输过程中，处于连通状态的接口变为未连通 状态，则通过该接口传输的链接被中止，而通过新建链接的方式继续该链接的数据传输。例如，某一链接需要传输的数据大小为1M，当传输到0.5M大小的时候，相应的传输接口发生异常中断，则这种变化将体现在当前路由规则中，分流权重会发生改变，新建链接后，将按照当前路由规则将该新建的链接分配到相应的接口，以继续进行剩下0.5M数据的传输。本发明实施例的数据传输方法还可包括：数据业务传输完成后，关闭接口，将当前路由规则删除。
本发明实施例的用户设备，具有双LTE同时下载(双通道下载)功能，且基于接口速率分流，极大的优化了数据流的分配比例，实现利用多条数据通道同时进行数据传输，降低延时、丢包率、拥塞率等，提高了用户体验。
本发明实施例的用户设备可以以每种形式来实施。例如，本发明实施例中描述的用户设备可以包括诸如手机、移动电话、智能电话、笔记本电脑、数字广播接收器、PDA(个人数字助理)、PAD(平板电脑)、PMP(便携式多媒体播放器)、导航装置等等的移动终端。
如图11所示，本发明实施例还提供一种多通道路由方法，包括：
步骤S50，检测一个或多个接口的连通性；
步骤S51，根据接口的速率检测结果计算分流权重，根据分流权重将传输数据业务建立的一条或多条链接分配到处于连通状态的接口以进行数据业务的传输。
如图12所示，本发明实施例还提供一种数据传输装置，包括：
第一检测模块110，设置为：实时检测每个接口的连通性；
第一分流权重计算模块111，设置为：检测到有数据业务时，建立至少一条链接；
第一分流传输模块112，设置为：根据分流权重，将所述建立的链接分配到所述处于连通状态的接口以进行数据业务的传输。
应理解，上述实施例的实施细节和原理均适用于该实施例的数据传输装置，在此不再赘述。
如图13所示，本发明实施例还提供另一种数据传输装置，包括：
第二检测模块120，设置为：实时检测每个接口的连通性；
第二分流权重计算模块121，设置为：检测到有数据业务时，建立至少一条链接；
第二分流传输模块122，设置为：根据1:1分流权重或基于接口速率计算得到的分流权重，将建立的链接分配到处于连通状态的接口以进行数据业务的传输。应理解，上述实施例的实施细节和原理均适用于该实施例的数据传输装置，在此不再赘述。
本发明实施例还提供一种计算机可读存储介质，存储有计算机可执行指令，所述计算机可执行指令被处理器执行时实现上述数据传输方法。
本发明实施例还提供一种计算机可读存储介质，存储有计算机可执行指令，所述计算机可执行指令被处理器执行时实现上述多通道路由方法。
流程图中或在本发明的实施例中以其他方式描述的任何过程或方法描述可以被理解为，表示包括一个或更多个用于实现特定逻辑功能或过程的步骤的可执行指令的代码的模块、片段或部分，并且本发明实施方式的范围包括另外的实现，其中可以不按所示出或讨论的顺序，包括根据所涉及的功能按基本同时的方式或按相反的顺序，来执行功能，这应被本发明的实施例所述技术领域的技术人员所理解。此外，在本发明实施例的描述中，除非另有说明，“多个”的含义是两个或两个以上。
上面结合附图对本发明的实施例进行了描述，但是本申请并不局限于上述的实施方式，上述的实施方式仅仅是示意性的，而不是限制性的，本领域的普通技术人员在本申请的启示下，在不脱离本申请宗旨和权利要求所保护的范围情况下，还可做出很多形式，这些均属于本申请的保护之内。
工业实用性
本发明实施例基于接口速率分流，或基于接口速率和时延分流，实现利用多条数据通道同时传输数据，极大的优化了数据流的分配比例；降低接口的拥塞、延时和丢包率，提高了用户体验。

Claims (20)

  1. 一种数据传输方法，适用于具有多个无线数据传输接口的终端，包括：
    实时检测每个无线数据传输接口的连通性；
    检测到有数据业务时，建立至少一条链接；
    根据分流权重，将所述建立的链接分配到所述处于连通状态的无线数据传输接口以进行数据业务的传输。
  2. 根据权利要求1所述的数据传输方法，其中，所述分流权重为1:1分流权重，或基于接口速率和接口时延计算得到分流权重。
  3. 根据权利要求2所述的数据传输方法，所述方法还包括：
    在所述数据业务的传输过程中，根据接口速率和接口时延，调整分流权重；
    基于调整后的分流权重，调整分配到每个处于连通状态的无线数据传输接口的链接数；
    所述调整分配到处于连通状态的无线数据传输接口的链接数包括：
    将新建的链接按照调整后的分流权重分配到处于连通状态的无线数据传输接口。
  4. 根据权利要求3所述的数据传输方法，所述方法还包括：
    若传输过程中，处于连通状态的无线数据传输接口变为未连通状态，则通过该无线数据传输接口传输的链接被中止，而通过新建链接的方式继续该链接的数据传输。
  5. 根据权利要求1所述的数据传输方法，其中，所述实时检测每个无线数据传输接口的连通性包括：
    每隔第一预设时间，从每个无线数据传输接口发一个因特网包探索器ping报文到预设服务器；
    等待第二预设时间，若未收到回复信息，则该无线数据传输接口处于未连通状态，若收到回复信息，则该无线数据传输接口处于连通状态。
  6. 根据权利要求2所述的数据传输方法，所述方法还包括：每隔第三预 设时间，获取无线数据传输接口的字节数的变化以作为无线数据传输接口的当前速率。
  7. 根据权利要求6所述的数据传输方法，所述方法还包括：检测无线数据传输接口是否处于拥塞状态，若是，则判断所述无线数据传输接口的当前速率是否大于所述无线数据传输接口的历史最大速率，若不大于历史最大速率，则将当前速率加上第一预设值后与历史最大速率比较，若小于历史最大速率，则将当前速率作为所述无线数据传输接口的实时最大速率；
    若所述无线数据传输接口不处于拥塞状态，且当前速率大于历史最大速率，则将当前速率作为所述无线数据传输接口的实时最大速率，并更新历史最大速率。
  8. 根据权利要求7所述的数据传输方法，其中，所述基于接口速率和接口时延计算得到分流权重包括：
    将实时最大速率与第二预设值进行比较，若实时最大速率大于所述第二预设值，则根据无线数据传输接口的实时最大速率计算分流权重；若实时最大速率不大于所述第二预设值，则根据无线数据传输接口的延时来确定分流权重。
  9. 根据权利要求7或8任一项所述的数据传输方法，其中，任一无线数据传输接口的分流权重为该无线数据传输接口的实时最大速率与所有无线数据传输接口的实时最大速率之和的比值。
  10. 根据权利要求8所述的数据传输方法，所述方法还包括：
    当通过一无线数据传输接口接收到一个同步确认syn+ack报文时，判断是否处于同步请求SYN_SEND状态，若处于，则获取当前的系统时间，并将获取的当前系统时间减去系统发送同步syn报文的时间，获得的时间差为所述无线数据传输接口的时延。
  11. 根据权利要求8所述的数据传输方法，所述方法还包括：
    每隔第四预设时间通过每一无线数据传输接口分别发一组ping报文，并根据接收到回复信息的时间差获取所述无线数据传输接口的时延。
  12. 根据权利要求10或11任一项所述的数据传输方法，其中，无线数 据传输接口的时延与所述无线数据传输接口的分流权重成反比。
  13. 根据权利要求1所述的数据传输方法，所述方法还包括：获取每一链接的数据包，并判断获取的数据包的链接跟踪状态是否为第一个数据包；
    如果为第一个数据包，则根据分流权重，对该数据包进行标记，并将标记值保存；如果不是第一个数据包，则将保存的该链接的第一个数据包的标记值赋予该数据包；
    根据数据包的标记值，将数据包分配至相应的无线数据传输接口进行传输。
  14. 根据权利要求1所述的数据传输方法，其中，所述多个无线数据传输接口包括以下接口中的至少一者：第一长期演进LTE接口、第二LTE接口、第一无线保真WIFI接口和第二WIFI接口。
  15. 一种数据传输装置，适用于具有多个无线数据传输接口的终端，包括：
    第一检测模块，设置为：实时检测每个无线数据传输接口的连通性；
    第一分流权重计算模块，设置为：检测到有数据业务时，建立至少一条链接；
    第一分流传输模块，设置为：根据分流权重，将所述建立的链接分配到所述处于连通状态的无线数据传输接口以进行数据业务的传输。
  16. 一种数据传输方法，适用于具有多个无线数据传输接口的终端，包括：
    实时检测每个无线数据传输接口的连通性；
    检测到有数据业务时，建立至少一条链接；
    根据1:1分流权重或基于接口速率计算得到分流权重，将建立的链接分配到处于连通状态的无线数据传输接口以进行数据业务的传输。
  17. 一种数据传输装置，适用于具有多个无线数据传输接口的终端，包括：
    第二检测模块，设置为：实时检测每个无线数据传输接口的连通性；
    第二分流权重计算模块，设置为：检测到有数据业务时，建立至少一条链接，并根据处于连通状态的无线数据传输接口的实时速率计算每个处于连通状态的无线数据传输接口的分流权重；
    第二分流传输模块，设置为：根据1:1分流权重或基于接口速率计算得到的分流权重，将建立的链接分配到处于连通状态的无线数据传输接口以进行数据业务的传输。
  18. 一种多通道路由方法，适用于具有多个无线数据传输接口的终端，包括：
    检测一个或多个无线数据传输接口的连通性；根据接口速率检测结果计算分流权重，根据分流权重将传输数据业务建立的一条或多条链接分配到处于连通状态的无线数据传输接口以进行数据业务的传输。
  19. 一种用户设备，包括第一用户识别模块和第二用户识别模块，还包括：
    第一通信模块；
    第二通信模块；
    切换模块；和
    控制模块，设置为：根据用户的操作指令，输出第一控制指令和第二控制指令；
    所述控制模块还设置为：根据所述第一控制指令，控制所述切换模块，使得所述第一用户识别模块或所述第二用户识别模块与所述第一通信模块连接；
    所述第一通信模块设置为：建立与LTE网络的数据业务连接，以进行数据业务传输；
    所述控制模块还设置为：根据所述第二控制指令，控制所述切换模块，使得所述第一用户识别模块或所述第二用户识别模块与所述第二通信模块连接；
    所述第二通信模块设置为：建立与LTE网络的数据业务连接，以进行数据业务传输；
    所述控制模块还设置为：检测第一通信模块和第二通信模块的连通性；检测到有数据业务时，建立至少一条链接；根据分流权重，将建立的链接分配到处于连通状态的通信模块以进行数据业务的传输。
  20. 根据权利要求19所述的用户设备，所述用户设备还包括：
    至少一个WIFI模块，设置为：连接到WIFI网络以进行数据传输；
    所述控制模块，还设置为：实时检测每个无线数据传输接口的连通性；检测到有数据业务时，建立至少一条链接；根据分流权重，将建立的链接分配到处于连通状态的无线数据传输接口以进行数据业务的传输；
    所述无线数据传输接口包括：与第一通信模块相对应的第一LTE接口、与第二通信模块相对应的第二LTE接口、以及与至少一个WIFI模块对应的至少一个WIFI接口。
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CN105656798A (zh) * 2016-01-08 2016-06-08 努比亚技术有限公司 数据传输方法、装置、多通道路由方法及用户设备
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CN115022578B (zh) * 2022-08-05 2022-12-06 国网江西省电力有限公司信息通信分公司 一种基于异构网络融合的会议视频传输方法及系统
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