WO2018018641A1 - Procédé et dispositif de transmission de données pour un service de données - Google Patents

Procédé et dispositif de transmission de données pour un service de données Download PDF

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Publication number
WO2018018641A1
WO2018018641A1 PCT/CN2016/092437 CN2016092437W WO2018018641A1 WO 2018018641 A1 WO2018018641 A1 WO 2018018641A1 CN 2016092437 W CN2016092437 W CN 2016092437W WO 2018018641 A1 WO2018018641 A1 WO 2018018641A1
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Prior art keywords
code rate
data service
air interface
transmission code
adjustment
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PCT/CN2016/092437
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English (en)
Chinese (zh)
Inventor
嵇家刚
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华为技术有限公司
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Priority to CN201680071324.1A priority Critical patent/CN108370524A/zh
Priority to PCT/CN2016/092437 priority patent/WO2018018641A1/fr
Publication of WO2018018641A1 publication Critical patent/WO2018018641A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W28/00—Network traffic management; Network resource management
    • H04W28/16—Central resource management; Negotiation of resources or communication parameters, e.g. negotiating bandwidth or QoS [Quality of Service]
    • H04W28/18—Negotiating wireless communication parameters
    • H04W28/22—Negotiating communication rate

Definitions

  • the present invention relates to the field of communications technologies, and in particular, to a data transmission method and apparatus for data services.
  • the server that provides the network resource sends the data packet to the base station corresponding to the mobile device, and the base station forwards the data packet to the mobile device by using the air interface corresponding to the mobile device.
  • the mobile device after receiving the data packet, the mobile device sends a confirmation message for successfully receiving the data packet to the server.
  • the server determines, according to the received confirmation information, that the packet has not been lost or the packet loss rate is low, the server increases the transmission rate of the data packet, that is, increases the transmission rate of the data service corresponding to the network resource.
  • the control method of the data rate of the data service provided in the related art is likely to cause air interface congestion of the base station.
  • the embodiment of the present invention provides a data transmission method and apparatus for data services, in order to solve the problem that the control mode of the data service transmission rate is provided in the related art.
  • the technical solution is as follows:
  • the first aspect provides a data transmission method for a data service, which is applied to a first device, where the method includes: determining, according to a load of an air interface corresponding to the data service, a transmission code rate for indicating the data service. Performing adjustment information, where the adjustment information includes at least one of a recommended code rate and indication information, where the indication information is used to indicate that the transmission code rate is increased, the transmission code rate is lowered, or the transmission code rate is maintained. The indication information is sent to the second device, where the adjustment information is used to trigger the second device to adjust a transmission code rate of the data service according to the adjustment information.
  • the second device adjusts the transmission code rate of the data service according to the adjustment information, and implements the control of the air interface load. Therefore, the problem that the control mode of the data service transmission rate provided in the related art is easy to cause the air interface congestion of the base station is improved, and the problem is improved. Air transmission efficiency.
  • the determining, according to a load of the air interface corresponding to the data service, the adjustment information for indicating that the transmission code rate of the data service is adjusted including: receiving the a data packet carrying the bandwidth information sent by the second device, where the bandwidth information includes at least a transmission code rate of the data packet and an adjustment step of the data service; and an air interface load and a location corresponding to the data service
  • the bandwidth information determines the suggested code rate.
  • the server determines the recommended code rate of the data service according to the load of the air interface and the transmission code rate of the data service, so that the server sends the data service according to the recommended code rate, and the load control of the air interface is realized.
  • the determining the recommendation according to the load of the air interface corresponding to the data service and the bandwidth information The code rate includes: when the load of the air interface reaches a first predetermined threshold, the first predetermined threshold is subtracted from the load of the air interface, and the difference is multiplied by the air interface bandwidth of the air interface to obtain the occupied air interface.
  • the adjustment value of the bandwidth or, when the load of the air interface is lower than the second predetermined threshold, subtracting the load of the air interface by using the first predetermined threshold, multiplying the obtained difference by the air interface bandwidth of the air interface.
  • the adjustment value of the occupied bandwidth of the air interface determining the adjustment value of the bandwidth of the data service according to the data service information corresponding to the air interface and the adjusted value of the occupied bandwidth, according to the adjustment step size Determining a recommended code rate of the data service by using an adjustment value of a bandwidth of the data service and a transmission code rate in the bandwidth information; wherein the first predetermined threshold is greater than The second predetermined threshold value.
  • the adjusting The step size, the adjustment value of the bandwidth of the data service, and the transmission code rate in the bandwidth information, and the recommended code rate of the data service including: when the transmission code rate of the data service needs to be lowered, The adjustment value of the bandwidth of the data service is divided by the adjustment step, and the obtained quotient value is rounded up to obtain a first adjustment step number; and the adjustment step size is multiplied by the first adjustment step number to utilize The current transmission code rate is subtracted from the obtained product to obtain the recommended code rate.
  • the adjustment value of the bandwidth of the data service is divided by the adjustment step.
  • the obtained quotient value is rounded down to obtain a second adjustment step number; the second adjustment step number is multiplied by the adjustment step size, and the obtained product is added to the current transmission code rate to obtain the recommended code. rate.
  • the And determining, by the load of the corresponding air interface, the adjustment information used to indicate the adjustment of the transmission code rate of the data service including: when the load of the air interface reaches a third predetermined threshold, sending, to the second device, an indication And lowering the indication information of the transmission rate; when the load of the air interface is less than the fourth predetermined threshold, sending, to the second device, indication information for indicating that the transmission rate is lowered; when the load of the air interface reaches the And when the fourth predetermined threshold is less than the three predetermined thresholds, sending, to the second device, indication information indicating that the transmission rate is unchanged; wherein the third predetermined threshold is greater than the fourth predetermined threshold.
  • the indication information is determined according to the load of the air interface and the transmission code rate of the data service, so that the server adjusts the transmission code rate of the data service according to the indication information, thereby realizing the control
  • the method further includes: Receiving, by the second device, a data packet carrying bandwidth information, reading a transmission code rate in the bandwidth information, and allocating, for the service data, an air interface resource that matches the transmission code rate, and allocating the The bandwidth of the air interface resource is greater than or equal to the transmission code rate.
  • a bandwidth guarantee is provided for the service data by allocating an air interface resource that matches the transmission rate to the service data.
  • the second aspect provides a data transmission method for a data service, which is applied to a second device, where the method includes: receiving, by the first device, adjustment information, which is used to indicate that the transmission rate of the data service is adjusted.
  • the adjustment information is determined by the first device according to the load of the air interface corresponding to the data service, where the adjustment information includes at least one of a recommended code rate and indication information, where the indication information is used for indicating The indication information of the high transmission rate, the transmission rate is lowered, or the transmission rate is maintained; and the transmission rate of the data service is adjusted according to the adjustment information.
  • the method for controlling the transmission rate of the data service is solved, which is easy to cause the air interface congestion of the base station, and improves the transmission efficiency of the air interface.
  • the adjustment information includes the recommended code rate
  • the adjusting a transmission code rate of the data service according to the adjustment information includes: following the recommended code rate Transmitting a data packet of the data service, where the data packet carries bandwidth information, where the bandwidth information includes at least a transmission code rate of the data packet and an adjustment step size of the data service.
  • the adjustment information includes the indication information for indicating that the transmission code rate is increased, the transmission code rate is lowered, or the transmission code rate is maintained, and the sending of the data service is adjusted according to the adjustment information.
  • the code rate includes: when the indication information is used to indicate that the transmission code rate is lowered, the transmission code rate of the data service is lowered, and the data packet of the data service is sent according to the adjusted transmission code rate;
  • the indication information is used to indicate that when the transmission code rate is increased, the transmission code rate of the data service is increased, and the data packet of the data service is sent according to the adjusted transmission code rate; when the indication information is used to indicate maintenance When the transmission code rate is unchanged, the data packet of the data service is transmitted according to the transmission rate used last time.
  • the third aspect provides a data transmission device for data service, which is applied to a first device, where the device includes: an execution unit, configured to determine, according to a load of an air interface corresponding to the data service, to indicate the data service
  • the adjustment information of the transmission code rate is adjusted, and the adjustment information includes at least one of a recommended code rate and indication information, where the indication information is used to indicate that the transmission code rate is increased, the transmission code rate is lowered, or the transmission is maintained.
  • the sending unit is configured to send the adjustment information to the second device, where the adjusting information is used to trigger the second device to adjust a sending code rate of the data service according to the adjusting information.
  • the device further includes: a receiving unit, configured to receive, by the second device, a data packet that carries bandwidth information, where the bandwidth information includes at least the The transmission code rate of the data packet and the adjustment step of the data service; the execution unit is further configured to determine the recommended code rate according to the load of the air interface corresponding to the data service and the bandwidth information.
  • the executing unit is further configured to: when the load of the air interface reaches a first predetermined threshold, utilize The load of the air interface is subtracted from the first predetermined threshold, and the difference is multiplied by the air interface bandwidth of the air interface to obtain an adjusted value of the occupied bandwidth of the air interface; or, when the load of the air interface is lower than a second predetermined threshold And subtracting the load of the air interface by using the first predetermined threshold, and multiplying the obtained difference by the air interface bandwidth of the air interface to obtain an adjustment value of the occupied bandwidth of the air interface; according to the data service corresponding to the air interface Determining, by the information and the adjusted value of the occupied bandwidth, an adjustment value of the bandwidth of the data service, and calculating, according to the adjustment step, the adjustment value of the bandwidth of the data service, and the transmission code rate in the bandwidth information And a suggested code rate of the data service; wherein the first predetermined threshold is greater than the second predetermined threshold
  • the execution unit is further configured to: when needed When the transmission code rate of the data service is lowered, the adjustment value of the bandwidth of the data service is divided by Adjusting the step size, rounding up the obtained quotient value to obtain a first adjustment step number; multiplying the adjustment step size by the first adjustment step number, and subtracting the obtained product from the current transmission code rate, Obtaining the recommended code rate; when the transmission code rate of the data service needs to be increased, the adjusted value of the bandwidth of the data service is divided by the adjustment step size, and the obtained quotient value is rounded down to obtain a second adjustment step number; multiplying the second adjustment step number by the adjustment step size, adding the obtained product to the current transmission code rate, to obtain the recommended code rate.
  • the executing unit is further configured to: when the load of the air interface reaches a first predetermined threshold, subtract the first predetermined threshold by using the load of the air interface, and multiply the difference by the air interface.
  • the air interface bandwidth obtains an adjustment value of the occupied bandwidth of the air interface; or, when the load of the air interface is lower than a second predetermined threshold, the load of the air interface is subtracted by using the first predetermined threshold, and the obtained difference is obtained.
  • the receiving unit is further configured to receive a data packet that is sent by the second device and that carries bandwidth information, and read a sending code in the bandwidth information.
  • the execution unit is further configured to allocate, to the service data, an air interface resource that matches the transmission code rate, where the allocated bandwidth of the air interface resource is greater than or equal to the transmission code rate.
  • a fourth aspect provides a data transmission device for a data service, which is applied to a second device, where the device includes: a receiving unit, configured to receive, by the first device, an indication for adjusting a transmission rate of the data service.
  • the adjustment information is determined by the first device according to the load of the air interface corresponding to the data service, where the adjustment information includes at least one of a recommended code rate and indication information, where the indication information is The indication information is used to indicate that the transmission code rate is increased, the transmission code rate is lowered, or the transmission code rate is maintained.
  • the execution unit is configured to adjust a transmission code rate of the data service according to the adjustment information.
  • the adjustment information includes the suggested code
  • the execution unit is further configured to send the data packet of the data service according to the recommended code rate, where the data packet carries bandwidth information, where the bandwidth information includes at least a transmission code rate and a location of the data packet.
  • the adjustment step size of the data service is further configured to send the data packet of the data service according to the recommended code rate, where the data packet carries bandwidth information, where the bandwidth information includes at least a transmission code rate and a location of the data packet.
  • the adjusting information includes the step of indicating that the transmission rate is increased, the transmission rate is lowered, or the transmission rate is maintained. And sending the indication information with the same code rate, the executing unit is further configured to: when the indication information is used to indicate that the transmission code rate is lowered, lower the transmission code rate of the data service, and send the transmission according to the adjustment And sending, by the code rate, the data packet of the data service; when the indication information is used to indicate that the transmission code rate is increased, the transmission code rate of the data service is increased, and the data service is sent according to the adjusted transmission code rate.
  • the data packet when the indication information is used to indicate that the transmission code rate is unchanged, the data packet of the data service is transmitted according to the last used transmission code rate.
  • FIG. 1 is a schematic structural diagram of a data transmission system for data services according to an exemplary embodiment of the present invention
  • FIG. 2 is a schematic structural diagram of a first device according to an exemplary embodiment of the present invention.
  • FIG. 3 is a schematic structural diagram of a first device according to an exemplary embodiment of the present invention.
  • FIG. 4 is a flowchart of a data transmission method of a data service according to an exemplary embodiment of the present invention
  • FIG. 5A is a flowchart of a data transmission method of a data service according to another exemplary embodiment of the present invention.
  • FIG. 5B is a flowchart of determining a recommended code rate according to load and bandwidth information of an air interface according to another exemplary embodiment
  • FIG. 6A is a flowchart of a data transmission method of a data service according to still another exemplary embodiment of the present invention.
  • FIG. 6B is a flowchart of providing bandwidth guarantee for a data service by a first device according to still another exemplary embodiment of the present invention.
  • FIG. 7 is a block diagram of a data transmission apparatus for data services according to an embodiment of the present invention.
  • FIG. 8 is a block diagram of a data transmission apparatus for data services according to another embodiment of the present invention.
  • FIG. 1 is a schematic structural diagram of a data transmission system for data services according to an exemplary embodiment of the present invention.
  • the data transmission system of the data service includes a mobile device 110, a first device 120, and a second device.
  • the first device 120 is a base station, and the first device 120 and the mobile device 110 establish a network connection by using a cellular communication technology
  • the cellular communication technology may be a long-term evolution (LTE), code division multiple access (English: code -division multiple access (CDMA) technology, global system for mobilecommunications (GSM) technology, and other cellular communication technologies.
  • LTE long-term evolution
  • CDMA code division multiple access
  • GSM global system for mobilecommunications
  • the second device may be a server 130a, or a server cluster composed of several servers, or a cloud computing service center.
  • the second device establishes a communication connection with the first device 120 via a wired network or a wireless network.
  • the second device may be a core network element 130b, such as a packet-data network gateway (P-GW), a serving gateway (SGW), and a mobility management entity. :mobility management entity, MME) and so on.
  • P-GW packet-data network gateway
  • SGW serving gateway
  • MME mobility management entity
  • the first device 120 includes a processor 21, a network interface 22, and a memory 23.
  • the processor 21 includes one or more processing cores, and the processor 21 executes various functional applications and data processing by running software programs and modules.
  • the memory 23 is coupled to the processor 21, for example, the memory 23 can be coupled to the processor 21 via a bus; the memory 23 can be used to store software programs and modules.
  • the memory 23 can store an application module 24 required for at least one function, the application module 24 may be a transmitting module 241, a receiving module 242, an executing module 243, and the like.
  • the sending module 241, the receiving module 242, and the executing module 243 can perform the corresponding steps in FIG. 3, FIG. 4, FIG. 5A, FIG. 5B, FIG. 6A, and FIG. 6B.
  • FIG. 3 FIG. 4, FIG. 5A, and FIG. 5B, the description of FIG. 6A and FIG. 6B.
  • the memory 23 can be implemented by any type of volatile or non-volatile storage device or a combination thereof, such as static random access memory (SRAM), electrically erasable programmable read only memory ( English: electrically erasable programmable read-only memory (EEPROM), erasable programmable read only memory (EPROM), programmable read only memory (English: programmable read only memory, PROM), only Read memory (English: read only memory image, ROM), magnetic memory, flash memory, disk or optical disk.
  • SRAM static random access memory
  • EEPROM electrically erasable programmable read only memory
  • EPROM erasable programmable read only memory
  • PROM programmable read only memory
  • only Read memory English: read only memory image, ROM
  • magnetic memory magnetic memory
  • flash memory disk or optical disk.
  • first device 120 shown in FIG. 1 does not constitute a limitation on the first device 120, and may include more or less components than those illustrated, or may combine certain components. Or different parts arrangement.
  • the second device includes a processor 31, a network interface 32, and a memory 33.
  • the processor 31 includes one or more processing cores, and the processor 31 executes various functional applications and data processing by running software programs and modules.
  • the memory 33 is coupled to the processor 31.
  • the memory 33 can be coupled to the processor 31 via a bus; the memory 33 can be used to store software programs and modules.
  • the memory 33 can store an application module 34 required for at least one function, and the application module 34 can be a receiving module 341, an execution module 342, and the like.
  • the receiving module 341 and the executing module 342 herein may perform the respective steps in FIGS. 3, 4, 5A, and 6A, with particular reference to the description of FIGS. 3, 4, 5A, and 6A.
  • Memory 33 can be implemented by any type of volatile or non-volatile storage device, or a combination thereof, such as SRAM, EEPROM, EPROM, PROM, ROM, magnetic memory, flash memory, magnetic disk or optical disk.
  • the structure of the second device shown in FIG. 1 does not constitute a pair.
  • the definition of the two devices may include more or fewer components than those illustrated, or some components may be combined, or different component arrangements.
  • FIG. 4 is a flowchart of a data transmission method of a data service according to an exemplary embodiment of the present invention.
  • the data transmission method of the data service is used in the data transmission system of the data service shown in FIG. 1 , and the method includes the following steps:
  • Step 401 The first device determines, according to the load of the air interface corresponding to the data service, adjustment information, which is used to indicate that the transmission code rate of the data service is adjusted, where the adjustment information includes at least one of a recommended code rate and the indication information.
  • the indication information is indication information for indicating that the transmission code rate is increased, the transmission code rate is lowered, or the transmission code rate is maintained.
  • the data service referred to herein refers to a data service carried in a cellular network, for example, the data service may be a video service, an audio service, or the like carried in a cellular network.
  • the second device sends a data packet to the first device connected to the mobile device, and the first device forwards the data packet to the mobile device.
  • the first device sends a data packet to the mobile device by using an air interface between the first device and the mobile device when the data packet is sent to the mobile device, where the air interface between the first device and the mobile device is the second device and the mobile device.
  • the air interface corresponding to the data service between devices.
  • the mobile device and the second device establish a video service
  • the air interface connected to the mobile device in the first device is an air interface corresponding to the video service.
  • the load of the air interface mentioned here refers to the occupancy rate of the air interface resource of the air interface, that is, the bandwidth occupancy rate of the air interface. For example, if the bandwidth of the air interface resource is 100 Mbps and the bandwidth occupied by the air interface resource is 80 Mbps, the occupancy rate of the air interface resource of the air interface is 0.8, and the load of the air interface is 0.8.
  • Step 402 The first device sends the adjustment information to the second device, where the adjustment information is used to trigger the second device to adjust the transmission code rate of the data service according to the adjustment information.
  • Step 403 The second device receives, by the first device, adjustment information, which is used to indicate that the transmission code rate of the data service is adjusted, and adjusts a transmission code rate of the data service according to the adjustment information.
  • Step 401 and step 402 can be separately implemented as a data transmission method of the data service with the first device as the execution subject, and step 403 can be separately implemented as the data transmission method for the data service with the second device as the execution subject.
  • the first device determines the adjustment information of the data service according to the load of the air interface and the transmission code rate of the data service
  • the second The device adjusts the transmission code rate of the data service according to the adjustment information, and implements the control of the air interface load. Therefore, the control method of the data service transmission rate rate provided in the related art is solved, which easily causes the air interface congestion of the base station, and improves the air interface. Transmission efficiency.
  • the problem of congestion in the air interface is avoided.
  • the data service is a video service
  • the delay of receiving the video data packet on the mobile device side is reduced, and the video buffering and jamming are reduced.
  • FIG. 5A a flowchart of a data transmission method of a data service according to another exemplary embodiment of the present invention is shown.
  • the data transmission method of the data service is used in the data transmission system of the data service shown in FIG. 1 , and the method includes the following steps:
  • Step 501 The first device receives a data packet that is sent by the second device and carries the bandwidth information, where the bandwidth information includes at least a transmission code rate of the data packet and an adjustment step of the data service.
  • the second device After the data service is established between the second device and the mobile device, the second device sends a data packet to the first device corresponding to the mobile terminal.
  • the second device continuously transmits several data packets at the same transmission code rate when transmitting the data packet, and each data packet carries the transmission code rate of the data packet and the adjustment step size of the data service.
  • the transmission code rate is the number of data bits transmitted per unit time when the server sends the data packet
  • the adjustment step size is a step size in which the server adjusts the transmission code rate of the data service.
  • the first device receives the data packet that is sent by the second device and carries the bandwidth information.
  • Step 502 The first device determines a recommended code rate according to the load and bandwidth information of the air interface corresponding to the data service.
  • the first device may determine, according to the load of the air interface, whether the transmission code rate of each data service corresponding to the air interface needs to be adjusted. When it is determined that the transmission code rate of a data service needs to be adjusted, the recommended code rate of the data service is determined, and the recommended code rate is sent to the server corresponding to the data service, so that the server sends the data service according to the recommended code rate.
  • the first device can reduce the load of the air interface to avoid air interface congestion.
  • the air interface load is lower than the second predetermined threshold, it indicates that the air interface bandwidth utilization of the air interface is low. At this time, the first device can increase the air interface load to improve the utilization of the air interface bandwidth.
  • first predetermined threshold and the second predetermined threshold are typically set by a system developer, and the first predetermined threshold is greater than the second predetermined threshold.
  • the recommended code rate is determined according to the load and bandwidth information of the air interface, which can be as shown in the figure.
  • the load and bandwidth information of the air interface can be as shown in the figure.
  • Step 502a When the load of the air interface reaches the first predetermined threshold, the first predetermined threshold is subtracted from the load of the air interface, and the difference is multiplied by the air interface bandwidth of the air interface to obtain an adjusted value of the occupied bandwidth of the air interface.
  • the first predetermined threshold is 0.8.
  • the load 0.9 of the air interface is subtracted from the first predetermined threshold of 0.8 to obtain the adjustment rate of the occupied bandwidth of the air interface by 0.1, and the adjustment rate of the occupied bandwidth is 0.1.
  • Multiplying the air interface bandwidth of 100 Mbps to obtain the adjusted value of the occupied bandwidth of the air interface is 10 Mbps, that is, the occupied bandwidth of the air interface needs to be lowered by 10 Mbps.
  • Step 502b When the load of the air interface is lower than the second predetermined threshold, the load of the air interface is subtracted by using the first predetermined threshold, and the obtained difference is multiplied by the air interface bandwidth of the air interface to obtain an adjusted value of the occupied bandwidth of the air interface.
  • the first predetermined threshold is 0.8
  • the first predetermined threshold is 0.6
  • the adjustment rate of the occupied bandwidth of the air interface is 0.4 by using the first predetermined threshold 0.8 minus the load of the air interface 0.4.
  • the adjusted bandwidth of the occupied bandwidth is multiplied by the air interface bandwidth of 100 Mbps, and the adjusted value of the occupied bandwidth of the air interface is 40 Mbps, that is, the occupied bandwidth of the air interface needs to be increased by 40 Mbps.
  • the value of the occupied bandwidth of the air interface needs to be adjusted according to the load of the air interface can be implemented by various calculation methods. For example, those skilled in the art can also transform the calculation methods involved in steps 502a and 502b. The value of the occupied bandwidth of the air interface needs to be adjusted, which is not described in this embodiment.
  • Step 502c Determine, according to the data service information corresponding to the air interface and the adjusted value of the occupied bandwidth, the adjustment value of the bandwidth of the data service, and calculate the adjustment step according to the adjustment step size, the bandwidth adjustment value of the data service, and the transmission code rate in the bandwidth information. The recommended code rate for this data service.
  • the data service information mentioned here refers to the basic information of the data service corresponding to the air interface, such as the type of the data service, the bandwidth occupied by the data service, and the like.
  • the first device can utilize various adjustment strategies to determine an adjustment value of the bandwidth of each data service.
  • the adjustment policy may be that the first device allocates an adjustment value of the occupied bandwidth of the air interface according to the occupancy rate of the air interface resource of the air interface according to each data service. For example, data service A occupies 20% of the air interface bandwidth of the air interface, data service B occupies 50% of the air interface bandwidth of the air interface, and data service C occupies 30% of the air interface bandwidth of the air interface.
  • the bandwidth adjustment value of the data service A is 8 Mbps, and the bandwidth of the data service B is adjusted.
  • the integer value is 20 Mbps
  • the adjustment value of the bandwidth of the data service C is 12 Mbps.
  • the first device of the adjustment policy may evenly allocate the adjusted value of the occupied bandwidth of the air interface to the video service corresponding to the air interface. For example, there are five video services corresponding to the air interface. When the first device needs to increase the occupied bandwidth of the air interface by 40 Mbps, the bandwidth adjustment value of each video service is 8 Mbps.
  • the adjustment value of the bandwidth of the data service corresponding to the air interface can be implemented by using various calculation methods.
  • those skilled in the art can also enumerate the embodiment.
  • the calculation method of the data is performed by a simple transformation to calculate the adjustment value of the bandwidth of the data service, which is not described in this embodiment.
  • calculating the recommended code rate of the data service can be implemented in the following two possible implementation manners.
  • the adjustment value of the bandwidth of the data service is divided by the adjustment step size, and the obtained quotient value is rounded up to obtain the first adjustment.
  • the number of steps is obtained by multiplying the first adjustment step by the adjustment step size and subtracting the obtained product from the current transmission code rate to obtain a recommended code rate.
  • the adjustment value of the bandwidth of the data service is 500 Kbps
  • the adjustment step of the data service is 64 Kbps
  • the current code rate of the data service is 1024 Kbps
  • the bandwidth of the data service is utilized.
  • the quotient obtained by dividing the adjustment value of 500 Kbps by the adjustment step size of 64 Kbps is 7.8125
  • the obtained quotient value of 7.8125 is rounded up to obtain the first adjustment step number of 8.
  • the product obtained by multiplying the first adjustment step number 8 by the adjustment step size of 64 Kbps is 512 Kbps
  • the obtained product code 512 Kbps is subtracted from the current transmission code rate of 1024 Kbps to obtain a recommended code rate of 512 Kbps.
  • the adjustment value of the bandwidth of the data service is divided by the adjustment step size, and the obtained quotient value is rounded down to obtain
  • the second adjustment step number is obtained by multiplying the adjustment step size by the second adjustment step number, and adding the obtained product to the current transmission code rate to obtain the recommended code rate.
  • the adjustment value of the bandwidth of the data service is 500 Kbps
  • the adjustment step of the data service is 64 Kbps
  • the current code rate of the data service is 1024 Kbps
  • the bandwidth of the data service is utilized.
  • the quotient of the adjusted value of 500 Kbps divided by the adjustment step size of 64 Kbps is 7.8125
  • the obtained quotient value of 7.8125 is rounded down to obtain the second adjustment step number of 7.
  • the product obtained by multiplying the second adjustment step number 7 by the adjustment step size of 64 Kbps is 448 Kbps
  • the obtained product 448 Kbps is subtracted from the current transmission code rate of 1024 Kbps to obtain a recommended code rate of 1472 Kbps.
  • the calculation of the recommended code rate of the data service is performed according to the adjustment step size, the adjustment value of the bandwidth of the data service, and the transmission code rate in the bandwidth information.
  • the method may also be utilized.
  • the adjustment value of the bandwidth of the data service is divided by the adjustment step size, and the obtained quotient value is rounded down to obtain the first adjustment step number; for example, in the second possible implementation manner, the data service can also be utilized.
  • the adjustment value of the bandwidth is divided by the adjustment step size, and the obtained quotient value is rounded up to obtain the second adjustment step number, which is not repeatedly described in this embodiment.
  • Step 503 The first device sends the adjustment information to the second device, where the adjustment information includes a recommended code rate.
  • Step 504 The second device receives the adjustment information that is sent by the first device to indicate that the transmission code rate of the data service is adjusted, and sends the data packet of the data service according to the recommended code rate.
  • the first device may calculate the recommended code rate every predetermined time or calculate the recommended code rate of the data service every time a predetermined data packet of the data service is received, and send the recommended code rate as the adjustment information.
  • This embodiment does not specifically limit this, and can be determined according to actual conditions.
  • the data transmission method of the data service provided by the embodiment determines the recommended code rate of the data service according to the load of the air interface and the transmission code rate of the data service, so that the server sends the data service according to the recommended code rate.
  • the control of the load of the air interface is implemented, so that the control method of the data rate of the data service provided in the related art is solved, which is easy to cause the air interface congestion of the base station, and improves the transmission efficiency of the air interface.
  • the bandwidth information further includes a maximum transmission rate of the data service and a minimum transmission rate of the data service.
  • the recommended code rate determined by the first device is less than the minimum transmission rate of the data service or greater than the maximum transmission rate of the data service, the first device needs to correct the recommended code rate.
  • the recommended code rate is increased, and the adjusted recommended code rate is greater than or equal to the minimum transmission rate of the data service.
  • the predetermined number of adjustment steps may be increased each time until the adjusted recommended code rate is greater than or equal to the minimum transmission rate of the data service.
  • the recommended code rate is lowered, and the adjusted recommended code rate is less than or equal to the maximum transmission rate of the data service.
  • the adjustment step size of the predetermined number may be adjusted each time until the adjusted recommended code rate is less than or equal to the maximum transmission rate of the data service.
  • the number of adjustment steps for each adjustment is set by the system developer. Correction of the recommended code rate to obtain the corrected recommended code rate can be achieved by various calculation methods, which will not be further described in this embodiment.
  • FIG. 6A is a flowchart of a data transmission method for data services according to still another exemplary embodiment of the present invention.
  • the data transmission method of the data service is used in the data transmission system of the data service shown in FIG. 1 , and the method includes the following steps:
  • Step 601 The first device determines, according to the load of the air interface corresponding to the data service, adjustment information, which is used to indicate that the transmission rate of the data service is adjusted, where the adjustment information includes the indication information, and the adjustment information is sent to the second device.
  • this step can be implemented by the following three possible implementation manners.
  • the first device when the load of the air interface reaches a third predetermined threshold, the first device sends indication information for indicating to lower the transmission code rate to the second device.
  • the first device sends the indication information for indicating to lower the transmission code rate to the second device.
  • the first device when the load of the air interface is less than the fourth predetermined threshold, the first device sends the indication information for indicating to lower the transmission code rate to the second device.
  • the load of the air interface is 0.1 and the fourth predetermined threshold is 0.6
  • the load 0.1 of the air interface is less than the fourth predetermined threshold 0.6
  • the first device sends the indication information for indicating to increase the transmission code rate to the second device.
  • the first device when the load of the air interface reaches a fourth predetermined threshold and is less than three predetermined thresholds, the first device sends, to the second device, indication information indicating that the transmission code rate is maintained unchanged.
  • the fourth predetermined threshold is 0.6
  • the occupancy rate of the air interface resource is 0.7
  • the load 0.7 of the air interface is greater than the fourth predetermined threshold 0.6
  • the load 0.7 of the air interface is less than the third predetermined threshold 0.8.
  • the first device sends, to the second device, indication information indicating that the transmission code rate is maintained unchanged.
  • the third predetermined threshold and the fourth predetermined threshold are set by the system developer, and the third predetermined threshold is greater than the fourth predetermined threshold.
  • Step 602 The second device receives, by the first device, adjustment information, which is used to indicate that the transmission rate of the data service is adjusted, and adjusts a transmission code rate of the data service according to the adjustment information, where the adjustment information is Includes instructions.
  • this step can be implemented by the following three possible implementation manners.
  • the second device when the indication information is used to indicate that the transmission code rate is lowered, the second device lowers the transmission code rate of the data service, and sends the data packet of the data service according to the adjusted transmission code rate.
  • the transmission code rate of the data service is lowered by a first predetermined adjustment step.
  • the first predetermined one is usually set by the system developer.
  • the current transmission rate of the data service is 1024 Kbps.
  • the transmission rate is reduced by 1024 Kbps by an adjustment step of 64 Kbps, and adjusted according to the adjustment.
  • the transmission rate is 960 Kbp, and the data packet of the data service is transmitted.
  • the second device when the indication information is used to indicate that the transmission code rate is increased, the second device increases the transmission code rate of the data service, and sends the data packet of the data service according to the adjusted transmission code rate.
  • the transmission code rate of the data service is increased by a second predetermined adjustment step.
  • the second predetermined one is usually set by the system developer.
  • the current transmission rate of the data service is 1024 Kbps.
  • the transmission rate is increased by 1024 Kbps by an adjustment step of 64 Kbps, and adjusted according to the adjustment.
  • the transmission rate is 1088Kbps to send the data packet of the data service.
  • the second device when the indication information is used to indicate that the transmission code rate is maintained unchanged, the second device sends the data packet of the data service according to the last used transmission code rate.
  • the current second device sends a data service with a transmission rate of 1024 Kbps.
  • the second device receives the indication to maintain the transmission code rate unchanged, the second device still sends the data packet of the data service according to the transmission code rate of 1024 Kbps.
  • the data transmission method of the data service provided by the embodiment determines the indication information according to the load of the air interface and the transmission code rate of the data service, so that the server adjusts the transmission code rate of the data service according to the indication information, so as to implement
  • the control of the load of the air interface is solved, so that the control method of the data rate of the data service provided in the related art is solved, which easily causes the air interface congestion of the base station, and improves the transmission efficiency of the air interface.
  • the first device can provide bandwidth guarantee for the data service when forwarding the data packet of the data service. Specifically, it can be realized by several steps as shown in FIG. 6B.
  • Step 603 Receive a data packet carrying the bandwidth information sent by the second device, and read a transmission code rate in the bandwidth information.
  • Step 604 Allocate the air interface resource that matches the transmission code rate, and the bandwidth of the allocated air interface resource is greater than or equal to the transmission code rate.
  • the air interface resource is allocated for the service data according to a predetermined ratio of the transmission code rate of the service data. For example, when the predetermined ratio is 1.2, when the transmission rate of the service data is 512 Kbps, the bandwidth of the air interface resource allocated by the first device for the service data is 614.4 Kbps.
  • the difference between the bandwidth of the resource allocated for the data service and the transmission code rate of the data service is a predetermined value
  • the predetermined value can be set by the system developer. For example, when the predetermined value is 200 Kbps, when the transmission rate of the service data is 512 Kbps, the bandwidth of the air interface resource allocated by the first device for the service data is 712 Kbps.
  • a bandwidth guarantee is provided for the service data by allocating an air interface resource that matches the transmission code rate for the service data.
  • the receiving code rate of the core network element receiving the data packet from the server is greater than the sending code rate of the core network element forwarding the data packet to the first device.
  • the core network element device can cache untransferred data packets.
  • the core network element may obtain the data packet of the data service from the local cache or Obtain the data packet of the data service from the server.
  • the problem of congestion in the air interface is avoided.
  • the data service is a video service
  • the delay of receiving the video data packet on the mobile device side is reduced, and the video buffering and jamming are reduced.
  • the first device adjusts the second device by sending the indication information for indicating the transmission rate to the second device or determining the recommended code rate that is higher than the current transmission rate.
  • the transmission rate of high data services improves the utilization of air interface resources.
  • FIG. 7 is a block diagram of a data transmission apparatus for data services according to an embodiment of the present invention.
  • the data transmission device of the data service can be implemented by software, hardware or a combination of the two. As all or part of the access terminal, the data transmission of the data service is used in the first device 120 shown in FIG.
  • the data transmission device of the data service may include an execution unit 710, a transmitting unit 720, and a receiving unit 730.
  • the executing unit 710 is configured to implement the foregoing step 401.
  • the sending unit 720 is configured to implement the foregoing step 402.
  • the executing unit 710 is configured to implement the foregoing step 502.
  • the sending unit 720 is further configured to implement the foregoing step 503.
  • the receiving unit 730 is further configured to implement the foregoing step 501.
  • the executing unit 710 is configured to implement the foregoing step 601.
  • the sending unit 720 is further configured to implement the foregoing step 602.
  • FIG. 8 is a block diagram of a data transmission apparatus for data services according to another embodiment of the present invention.
  • the data transmission device of the data service may be implemented as all or part of the access terminal by software, hardware or a combination of the two, and the data transmission of the data service is used in the second device shown in FIG.
  • the data transmission device of the data service may include: a receiving unit 810 and an executing unit 820.
  • the receiving unit 810 is configured to implement the foregoing step 403.
  • the executing unit 820 is configured to implement the foregoing step 403.
  • the receiving unit 810 is further configured to implement the foregoing step 504.
  • the executing unit 820 is further configured to implement the foregoing step 505.
  • the receiving unit 810 is further configured to implement the functions of at least one of the foregoing steps 602 and 603.
  • the executing unit 820 is further configured to implement the functions of at least one of the foregoing steps 602 and 604.
  • a person skilled in the art may understand that all or part of the steps of implementing the above embodiments may be completed by hardware, or may be instructed by a program to execute related hardware, and the program may be stored in a computer readable storage medium.
  • the storage medium mentioned may be a read only memory, a magnetic disk or an optical disk or the like.

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  • Engineering & Computer Science (AREA)
  • Quality & Reliability (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Data Exchanges In Wide-Area Networks (AREA)

Abstract

Les modes de réalisation de la présente invention se rapportent au domaine technique des télécommunications et concernent un procédé et un appareil de transmission de données pour un service de données. Le procédé comprend les étapes suivantes : un premier dispositif détermine, en fonction de la charge d'une interface radio correspondant à un service de données, des informations d'ajustement utilisées pour commander l'ajustement d'un débit de code d'envoi du service de données, les informations d'ajustement comprenant un débit de code suggéré et/ou des informations d'instruction, les informations d'instruction étant utilisées pour commander l'augmentation du débit de code d'envoi, diminuer le débit de code d'envoi ou maintenir inchangé le débit de code d'envoi ; le premier dispositif envoie les informations d'ajustement à un deuxième dispositif, les informations d'ajustement étant utilisées pour déclencher l'ajustement, par le deuxième dispositif, du débit de code d'envoi du service de données selon les informations d'ajustement. La présente invention permet de résoudre le problème selon lequel un mode de commande d'un débit de code d'envoi de service de données, dans la technique apparentée, provoque facilement l'encombrement d'une interface radio d'une station de base, et d'améliorer ainsi l'efficacité de transmission de l'interface radio.
PCT/CN2016/092437 2016-07-29 2016-07-29 Procédé et dispositif de transmission de données pour un service de données WO2018018641A1 (fr)

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