WO2018188170A1 - Procédé, dispositif, et système de communication de données - Google Patents

Procédé, dispositif, et système de communication de données Download PDF

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Publication number
WO2018188170A1
WO2018188170A1 PCT/CN2017/085575 CN2017085575W WO2018188170A1 WO 2018188170 A1 WO2018188170 A1 WO 2018188170A1 CN 2017085575 W CN2017085575 W CN 2017085575W WO 2018188170 A1 WO2018188170 A1 WO 2018188170A1
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WIPO (PCT)
Prior art keywords
data packet
transmitted
packet
communication mechanism
data
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PCT/CN2017/085575
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English (en)
Chinese (zh)
Inventor
欧阳国威
金辉
段小嫣
何岳
窦凤辉
杨皓睿
Original Assignee
华为技术有限公司
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Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to CN201780065112.7A priority Critical patent/CN109863821B/zh
Publication of WO2018188170A1 publication Critical patent/WO2018188170A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/02—Terminal devices

Definitions

  • the embodiments of the present invention relate to the field of communications technologies, and in particular, to a data communication method, apparatus, and system.
  • a complete Service Request process includes random access, Radio Resource Control (RRC) connection, establishment of default bearers and dedicated bearers, and signaling involving a large number of interactions between multiple network elements. If the data sent by the UE is small, for example, less than 100K, and the ServiceRequest process is still used, the transmission process is relatively complicated, and the signaling efficiency is relatively low.
  • RRC Radio Resource Control
  • the Radio Access Network configures a threshold for the UE and informs the UE by using a broadcast system message or by sending dedicated signaling. If the size of the data packet to be transmitted by the UE does not exceed the threshold, the communication mechanism of the Grant Free is adopted; if the size of the data packet to be transmitted by the UE exceeds the threshold, the Service Request process still needs to be performed.
  • the UE uses the Grant Free communication mechanism by default. The RAN determines whether the received packet size meets the packet size requirement in the Grant Free communication mechanism. If not, the RAN requests the UE to execute the Service Request process. It can be seen that it is now based on the packet size of the service to determine whether to use the Grant Free communication mechanism.
  • Grant Free's communication mechanism does not establish an RRC connection and does not establish a dedicated bearer
  • IMS Internet Protocol Multimedia Subsystem
  • QOS Quality of Service
  • the present application provides a data communication method, apparatus, and system for solving the problem of data transmission in the prior art that determines whether to use the Grant Free communication mechanism based on the size of the data packet to be transmitted, and cannot meet different service requirements.
  • the first aspect provides a method for data communication, where the method includes: receiving, by the UE, packet filtering information sent by an SMF entity, if the length of the data packet to be transmitted by the UE is less than or equal to a threshold of the length of the data packet, and the to-be-transmitted The data packet is not a packet fragmentation, and the UE determines that the data packet to be transmitted can use an unauthorized communication device. system.
  • the packet filtering information includes a threshold of a packet length and a packet fragmentation indication.
  • the length of the data packet to be transmitted is less than or equal to the data packet length threshold, and the data packet to be transmitted is not a data packet fragment, it indicates that the data packet to be transmitted has low requirements on delay and reliability, and therefore An unauthorized communication mechanism can be used.
  • the length of the data packet to be transmitted is greater than the data packet length threshold, or the data packet to be transmitted is less than or equal to the data packet length threshold, but the data packet to be transmitted is a data packet fragment, the data to be transmitted is generally considered to be transmitted. Packets have higher reliability requirements for delays, and you cannot use an unlicensed communication mechanism. Therefore, the method provided by the present application can meet the data transmission of different service requirements, and can improve the signaling efficiency while ensuring the QOS requirement of the service.
  • the UE determines that the data packet to be transmitted cannot use an unauthorized communication mechanism. If the length of the data packet to be transmitted by the UE is less than or equal to the threshold of the data packet length, and the data packet to be transmitted is a data packet fragment, the UE determines that the data packet to be transmitted cannot use an unauthorized communication mechanism. Thus, the UE determines that the data packet to be transmitted is a slice of a large data packet, and does not use an unauthorized communication mechanism. This is because the unlicensed communication mechanism has the characteristics of low reliability and large delay.
  • the embodiment of the present application can avoid the occurrence of the situation and improve the efficiency of data transmission.
  • the UE after the UE determines that the data packet to be transmitted can use the unlicensed communication mechanism, the UE marks the service quality flow identifier QFI for the data packet to be transmitted, and the QFI indicates that the data packet to be transmitted uses the license-free. Communication mechanism transmission.
  • the UE invokes an application programming interface API between the network protocol IP layer and the packet data aggregation protocol PDCP layer, the API indicating that the data packet to be transmitted is transmitted using an unlicensed communication mechanism.
  • the UE adds a data packet header to the data packet to be transmitted, and the data packet header is used to indicate that the data packet to be transmitted is transmitted using an unlicensed communication mechanism. Therefore, the embodiments of the present application provide three specific implementation manners for how a data packet to be transmitted that the UE determines to use an unlicensed communication mechanism is mapped to a bearer.
  • the UE maps the data packet to be transmitted to the bearer of the communication mechanism for the license-free.
  • the UE determines, according to the indication information, whether the data packet to be transmitted has a corresponding downlink data packet. If there is a corresponding downlink data packet, the UE receives the downlink data packet on the unlicensed bearer; if there is no corresponding downlink data packet, the UE releases the bearer. Therefore, when the data packet to be transmitted corresponds to the downlink data packet, the unlicensed bearer can continue to be used for receiving, without additional signaling, which is beneficial to save the use of signaling, and is beneficial to improving the efficiency of data transmission.
  • a method for data communication including: if the SMF entity determines that the user equipment UE supports an unlicensed communication mechanism, the SMF entity generates packet filtering information and sends the information to the UE, so that the UE determines whether the data packet to be transmitted is Ability to use an unlicensed communication mechanism.
  • the packet filtering information includes: a threshold of the packet length and a packet fragmentation indication.
  • the SMF entity acquires the subscription information and the network policy of the UE; and determines whether the UE supports the unauthorized communication mechanism according to the subscription information or the network policy of the UE.
  • the threshold of the packet length and the packet fragmentation indication are used to indicate to the UE whether the data packet to be transmitted is capable of using an unlicensed communication mechanism. Specifically, if the UE determines that the length of the data packet to be transmitted is less than or equal to the threshold of the data packet length, and the data packet to be transmitted is not a data packet fragment, it is determined that the data packet to be transmitted can use an unauthorized communication mechanism.
  • the packet filtering information further includes indication information, where the indication information is used to indicate to the UE whether the data packet to be transmitted has a corresponding downlink data packet.
  • a third aspect provides an apparatus for data communication, including a receiving unit, configured to receive data packet filtering information sent by a session management function SMF entity, where the data packet filtering information includes: a threshold of a data packet length and a packet fragmentation indication; And a unit, if the length of the data packet to be transmitted is less than or equal to a threshold of the data packet length, and the data packet to be transmitted is not a data packet fragment, determining that the data packet to be transmitted can use an unauthorized communication mechanism.
  • the processing unit is further configured to: if the length of the data packet to be transmitted is less than or equal to a threshold of the data packet length, and the data packet to be transmitted is a data packet fragment, determine that the data packet to be transmitted cannot be Use an unauthorized communication mechanism.
  • the processing unit is further configured to mark a service quality flow identifier QFI for the data packet to be transmitted, the QFI indicating that the data packet to be transmitted is transmitted using an unlicensed communication mechanism, or calling a network protocol IP layer and An application programming interface API between the PDCP layers of the packet data convergence protocol, the API indicating that the data packet to be transmitted is transmitted using an unlicensed communication mechanism, or adding a data packet header to the data packet to be transmitted, the data packet header is used to indicate The transmitted packets are transmitted using an unlicensed communication mechanism.
  • the processing unit is further configured to map the data packet to be transmitted to the bearer of the communication mechanism for the license-free.
  • the packet filtering information further includes indication information, where the indication information is used to instruct the processing unit to determine whether the data packet to be transmitted has a corresponding downlink data packet.
  • the processing unit is further configured to determine, according to the indication information, whether the data packet to be transmitted has a corresponding downlink data packet.
  • the receiving unit is further configured to: if the processing unit determines that the data packet to be transmitted has a corresponding downlink data packet, receive the downlink data packet on the unlicensed bearer; and the processing unit is further configured to determine If the data to be transmitted does not have a corresponding downlink data packet, the bearer is released.
  • the fourth aspect further provides an apparatus for data communication, including: a processing unit, configured to determine that the user equipment UE supports an unlicensed communication mechanism; and the processing unit is further configured to: if the UE is determined to support an unlicensed communication mechanism, generate data
  • the packet filtering information is used by the sending unit to send the packet filtering information to the UE, so that the UE determines, according to the data packet filtering information, whether the data packet to be transmitted can use an unauthorized communication mechanism.
  • the packet filtering information includes: a threshold of the packet length and a packet fragmentation indication.
  • the processing unit is configured to acquire the subscription information and the network policy of the UE, and determine whether the UE supports the unlicensed communication mechanism according to the subscription information or the network policy of the UE.
  • the threshold of the data packet length and the packet fragment indication are used to indicate that the UE determines that the length of the data packet to be transmitted is less than or equal to the threshold of the data packet length, and the data packet to be transmitted is not a data packet.
  • the UE determines that the data packet to be transmitted can use an unauthorized communication mechanism.
  • the packet filtering information further includes indication information, and the indication information is used to indicate that the UE is Whether the data packet to be transmitted has a corresponding downlink data packet.
  • a terminal comprising: a memory, a processor, a transceiver, and a bus.
  • the transceiver is configured to receive packet filtering information sent by the session management function SMF entity, where the packet filtering information includes: a threshold of a packet length and a packet fragmentation indication; and a processor, configured to: if the data packet to be transmitted If the length is less than or equal to the threshold of the packet length, and the data packet to be transmitted is not a packet fragment, it is determined that the data packet to be transmitted can use an unauthorized communication mechanism.
  • the processor is further configured to: if the length of the data packet to be transmitted is less than or equal to a threshold of the data packet length, and the data packet to be transmitted is a data packet fragment, determine that the data packet to be transmitted cannot be Use an unauthorized communication mechanism.
  • the processor is further configured to mark a service quality flow identifier QFI for the data packet to be transmitted, the QFI indicating that the data packet to be transmitted is transmitted using an unlicensed communication mechanism, or calling a network protocol IP layer and a packet.
  • the processor is also used to map the data packets to be transmitted onto the bearer of the communication mechanism for the exemption.
  • the packet filtering information further includes indication information, where the indication information is used to instruct the processor to determine whether the data packet to be transmitted has a corresponding downlink data packet.
  • the processor is further configured to determine, according to the indication information, whether the data packet to be transmitted has a corresponding downlink data packet.
  • the transceiver is further configured to: if the processing unit determines that the data packet to be transmitted has a corresponding downlink data packet, receive the downlink data packet on the unlicensed bearer; and the processor is further configured to determine If the transmission data does not have a corresponding downlink packet, the bearer is released.
  • a network device comprising: a memory, a processor, a transceiver, and a bus.
  • the processor is configured to determine that the user equipment UE supports an unlicensed communication mechanism, and the processor is further configured to: if the UE determines that the UE supports an unlicensed communication mechanism, generate packet filtering information; and the transceiver is configured to send data to the UE.
  • the packet filtering information enables the UE to determine whether the data packet to be transmitted can use an unauthorized communication mechanism according to the packet filtering information.
  • the packet filtering information includes: a threshold of the packet length and a packet fragmentation indication.
  • the processor is further configured to acquire the subscription information and the network policy of the UE, and the processor is further configured to determine, according to the subscription information or the network policy of the UE, whether the UE supports the unlicensed communication mechanism.
  • the threshold of the data packet length and the packet fragment indication are used to indicate that the UE determines that the length of the data packet to be transmitted is less than or equal to the threshold of the data packet length, and the data packet to be transmitted is not a data packet.
  • the UE determines that the data packet to be transmitted can use an unauthorized communication mechanism.
  • the packet filtering information further includes indication information, where the indication information is used to indicate to the UE whether the data packet to be transmitted has a corresponding downlink data packet.
  • a communication system comprising a terminal and a network device, wherein the terminal is the UE according to any of the aspects described above; and the network device is the SMF entity according to any of the foregoing aspects.
  • an embodiment of the present application provides a computer storage medium for storing a computer used by the terminal.
  • a software instruction that includes a program for performing the above aspects.
  • the embodiment of the present application provides a computer storage medium for storing computer software instructions used by a network device, which includes a program for performing the above aspects.
  • An embodiment of the present application provides a data communication method, device, and device, including: receiving, by a UE, data packet filtering information sent by an SMF entity, where a length of a data packet to be transmitted by the UE is less than or equal to a threshold value of the data packet length, and the If the data packet to be transmitted is not a packet fragment, the UE determines that the data packet to be transmitted can use an unauthorized communication mechanism.
  • the packet filtering information includes a threshold of a packet length and a packet fragmentation indication.
  • the SMF entity can set different packet filtering information and send it to the UE.
  • the UE then filters the data packets to be transmitted according to the packet filtering information, and determines a data packet that can be transmitted using an unauthorized communication mechanism. Therefore, the data packet to be transmitted that does not satisfy the packet filtering information does not use an unauthorized communication mechanism, and the data packet to be transmitted that satisfies the packet filtering information can use an unauthorized communication mechanism.
  • the method provided by the present application can meet the data transmission of different service requirements, and can improve the signaling efficiency while ensuring the QOS requirement of the service.
  • FIG. 1 is a system architecture diagram of a data communication method according to an embodiment of the present application.
  • FIG. 2 is a schematic structural diagram of an SMF entity according to an embodiment of the present application.
  • FIG. 3 is a schematic structural diagram of a UE according to an embodiment of the present disclosure.
  • FIG. 4 is a schematic flowchart of a data communication method according to an embodiment of the present application.
  • FIG. 5 is a schematic flowchart diagram of another data communication method according to an embodiment of the present application.
  • FIG. 6 is a schematic diagram of a 3rd Generation Partnership Project (3GPP) protocol stack of a UE according to an embodiment of the present disclosure
  • FIG. 7 is a schematic flowchart diagram of still another data communication method according to an embodiment of the present application.
  • FIG. 8 is a schematic structural diagram of a data communication apparatus according to an embodiment of the present application.
  • FIG. 9 is a schematic structural diagram of still another data communication apparatus according to an embodiment of the present application.
  • FIG. 10 is a schematic structural diagram of a terminal according to an embodiment of the present disclosure.
  • FIG. 11 is a schematic structural diagram of a network device according to an embodiment of the present application.
  • the UE When the UE and the core network have no data transmission, the UE enters the IDLE state. At this time, the RAN releases the RRC connection, but the core network still retains the location information of the UE. If the UE needs to send data to the data network at this time, in order to simplify the transmission process and improve the signaling efficiency, the UE may not re-establish the RRC connection and the dedicated bearer, but directly establish a default bearer for the Grant Free transmission according to the core network indication. The uplink data is directly transmitted through the default bearer, that is, the data is transmitted using the Grant Free communication mechanism.
  • the Grant Free communication mechanism has the disadvantages of low reliability and large delay. Therefore, for services with higher QOS requirements, such as IMS voice, online games, etc., it does not apply to the Grant Free communication mechanism. Therefore, the method provided in the embodiment of the present application is required to filter the uplink data packet to be transmitted by the UE, and then use the uplink data packet. Grant Free communication mechanism for transmission.
  • FIG. 1 is a system architecture diagram of a data communication method provided by an embodiment of the present application, including an Authentication and Mobility Management Function (AMF) entity 10 , an or a plurality of session management function (SMF) entities 20, one or more user equipments UE30, a data network (DN) 40, one or more user plane function (UPF) entities 50, RAN 60, Packet Control Function (PCF) entity 70, Application Function (AF) entity 80, standard Data Management (UDM) entity 90, and Authentication Server Function (AUSF) ) Entity 00.
  • AMF Authentication and Mobility Management Function
  • SMF session management function
  • DN data network
  • UPF user plane function
  • PCF Packet Control Function
  • AF Application Function
  • UDM standard Data Management
  • AUSF Authentication Server Function
  • the AMF entity 10 is configured to select an SMF entity according to the session connection establishment request sent by the UE 30, so that the selected SMF entity establishes a session between the UE 30 and the UPF entity 50.
  • the SMF entity 20 is configured to determine, according to the subscription information of the UE 30 and the network policy acquired from the PCF entity 70, whether the UE 30 can perform data transmission using the Grant Free communication mechanism. If it is determined that the UE 30 can use the Grant Free communication mechanism for data transmission, the SMF entity 20 generates packet filtering information and sends the packet filtering information to the UE 30, and the packet filtering information is used to instruct the UE 30 to filter out the corresponding data packet. The SMF entity 20 is further configured to allocate an UPF to the UE according to the location information of the UE 30.
  • the multiple UEs 30 are configured to filter corresponding data according to the data packet filtering information sent by the SMF entity 20, and perform corresponding processing and transmit the data to the DN 40.
  • DN40 an external network used to provide data services.
  • the RAN 60 is used to provide data services for the UE 30.
  • the data transmitted by the UE 30 is received or transmitted to the UE 30, and the RAN 60 may be a base station during actual use.
  • the RAN is further configured to configure, for the UE 30, a bearer for the Grant Free transmission according to the indication of the SMF entity 20.
  • the PCF entity 70 is configured to provide a network policy for the SMF, where the network policy includes whether to support the Grant Free transmission.
  • AMF entity 10 and SMF entity 20 communicate via interface N11.
  • the AMF entity 10 and the UE 30 communicate through the interface N1
  • the AMF entity 10 and the RAN 60 communicate through the interface N2
  • the AMF entity 10 and the AUSF entity 00 communicate through the interface N12
  • the AMF entity 10 and the UDM entity 90 pass the interface N8.
  • Communication, AMF entity 10 and PCF entity 70 communicate through interface N15
  • SMF entity 20 and UDM entity 90 communicate via interface N10
  • SMF entity 20 and UPF entity 50 communicate via interface N4
  • UPF entity 50 and data network 40 communicates through interface N6, and PCF entity 70 communicates with AF entity 80 via interface N5.
  • FIG. 2 is a schematic diagram of an internal structure of the SMF entity 20 in the embodiment of the present application.
  • the SMF entity 20 may include a processor 201, a transceiver 202, and a memory 203.
  • the processor 201 is configured to control various parts of the hardware device, application software, and the like of the SMF entity 20.
  • the processor 201 may be configured to determine whether the UE 30 can use the Grant Free communication mechanism and generate packet filtering information and the like.
  • the transceiver 202 is configured to receive commands sent by other devices by using a wireless fidelity (WiFi), a Long Term Evolution (LTE), or a 5G communication manner, or may use the SMF entity 20 The data is sent to other devices.
  • WiFi wireless fidelity
  • LTE Long Term Evolution
  • 5G communication manner or may use the SMF entity 20 The data is sent to other devices.
  • the transceiver 202 may be configured to receive requests sent by other network element devices, such as the AMF entity 10 and the PCF entity 70, and the transceiver 202 may also be used to send data to the UDM entity 90 or the PCF entity 70.
  • the memory 203 is used to execute storage of software programs of the SMF entity 20, storage of data, operation of software, and the like. In the embodiment of the present application, for example, the memory 203 can be used to store network policies and user subscription information and the like. In the embodiments of the present application, specific functions of each module are described in the following embodiments.
  • the UE 30 may be a terminal, a mobile station, a subscriber unit, a station, or the like.
  • the UE 30 may be a cellular phone, a personal digital assistant (PDA), a wireless modem (Modem), a wireless communication device, a handheld, a laptop computer, a cordless phone (cordless) Phone), wireless local loop (WLL) station, etc.
  • PDA personal digital assistant
  • Modem wireless modem
  • WLL wireless local loop
  • the UE 30 may be referred to as an M2M terminal, and may be a smart meter, a smart home appliance, or the like that supports M2M communication.
  • FIG. 3 is a schematic structural diagram of a terminal UE 30 according to an embodiment of the present application.
  • the terminal provided in this embodiment of the present application may be used to implement the method implemented in the foregoing embodiment of the present application, and is only shown for convenience of description.
  • the terminal can be a mobile device, a tablet computer, a notebook computer, a UMPC (Ultra-mobile Personal Computer), a netbook, a PDA (Personal Digital Assistant), and the like.
  • FIG. 3 is a block diagram showing a partial structure of a mobile phone 300 related to various embodiments of the present application.
  • the mobile phone 300 includes components such as an RF (radio frequency) circuit 320, a memory 330, an input unit 340, a display unit 350, a gravity sensor 360, an audio circuit 370, a processor 380, and a power source 390.
  • RF radio frequency
  • FIG. 3 does not constitute a limitation to the handset, and may include more or less components than those illustrated, or some components may be combined, or different component arrangements.
  • the components of the mobile phone 300 will be specifically described below with reference to FIG. 3:
  • the RF circuit 320 can be used for receiving and transmitting signals during and after receiving or transmitting information, in particular, after receiving the downlink information of the base station, and processing it to the processor 380; in addition, transmitting the uplink data to the base station.
  • RF circuits include, but are not limited to, an antenna, at least one amplifier, a transceiver, a coupler, an LNA (low noise amplifier), a duplexer, and the like.
  • RF circuitry 320 can also communicate with the network and other devices via wireless communication.
  • the wireless communication may use any communication standard or protocol, including but not limited to GSM (global system of mobile communication), GPRS (general packet radio service), CDMA (code division multiple access) , code division multiple access), WCDMA (wideband code division multiple access), LTE (long term evolution), e-mail, SMS (short messaging service), and the like.
  • GSM global system of mobile communication
  • GPRS general packet radio service
  • CDMA code division multiple access
  • WCDMA wideband code division multiple access
  • LTE long term evolution
  • e-mail short messaging service
  • the RF circuit 320 may be configured to send a session establishment request to the SMF entity, and receive a session establishment message sent by the SMF, where the session establishment message further carries the packet filtering information generated by the SMF.
  • the packet filtering information includes information such as a threshold of a packet length and a packet fragmentation indication.
  • the RF circuit is further configured to send a data packet to be transmitted to the RAN, and receive a corresponding downlink data packet of the data packet to be transmitted.
  • the memory 330 can be used to store software programs and modules, and the processor 380 executes various functional applications and data processing of the mobile phone 300 by running software programs and modules stored in the memory 330.
  • the memory 330 may mainly include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application required for at least one function (such as a sound playing function, an image playing function, etc.), and the like; the storage data area may be stored according to The data created by the use of the mobile phone 300 (such as audio data, image data, phone book, etc.) and the like.
  • memory 330 can include high speed random access memory, and can also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other volatile solid state storage device.
  • the memory 330 may be used to store information of the received packet filter, and may also be used to store information for the bearer of the Grant Free transmission.
  • the input unit 340 can be configured to receive input numeric or character information and to generate key signal inputs related to user settings and function control of the handset 300.
  • the input unit 340 can include a touch screen 341 as well as other input devices 342.
  • a touch screen 341, also referred to as a touch panel, can collect touch operations on or near the user (such as the user's operation on or near the touch screen 341 using any suitable object or accessory such as a finger, stylus, etc.), and The corresponding connecting device is driven according to a preset program.
  • the touch screen 341 may include two parts of a touch detection device and a touch controller.
  • the touch detection device detects the touch orientation of the user, and detects a signal brought by the touch operation, and transmits the signal to the touch controller; the touch controller receives the touch information from the touch detection device, converts the touch information into contact coordinates, and sends the touch information.
  • the processor 380 is provided and can receive commands from the processor 380 and execute them.
  • the touch screen 341 can be implemented in various types such as resistive, capacitive, infrared, and surface acoustic waves.
  • the input unit 340 may also include other input devices 342.
  • other input devices 342 may include, but are not limited to, one or more of a physical keyboard, function keys (such as volume control buttons, power switch buttons, etc.), trackballs, mice, joysticks, and the like.
  • the display unit 350 can be used to display information input by the user or information provided to the user and various menus of the mobile phone 300.
  • the display unit 350 may include a display panel 351.
  • the display panel 341 may be configured in the form of an LCD (Liquid Crystal Display), an OLED (Organic Light-Emitting Diode), or the like.
  • the touch screen 341 can cover the display panel 351, and when the touch screen 341 detects a touch operation on or near it, transmits to the processor 380 to determine the type of the touch event, and then the processor 380 displays the panel according to the type of the touch event.
  • a corresponding visual output is provided on the 351.
  • the touch screen 341 and the display panel 351 function as two separate components to implement the input and input functions of the mobile phone 300, in some embodiments, the touch screen 341 can be integrated with the display panel 351 to implement the mobile phone 300. Input and output functions.
  • Gravity sensor 360 can detect the acceleration of the mobile phone in all directions (usually three axes). When it is stationary, it can detect the magnitude and direction of gravity. It can be used to identify the gesture of the mobile phone (such as horizontal and vertical screen switching, related Game, magnetometer attitude calibration), vibration recognition related functions (such as pedometer, tapping).
  • the handset 300 can also include other sensors, such as light sensors.
  • the light sensor can include an ambient light sensor and a proximity light sensor.
  • the ambient light sensor can adjust the brightness of the display panel 341 according to the brightness of the ambient light; the proximity light sensor can detect whether an object approaches or contacts the mobile phone, and can close the display panel 341 and/or the backlight when the mobile phone 300 moves to the ear.
  • the mobile phone 300 can also be configured with a gyroscope, a barometer, and a wet Other sensors such as thermometers, thermometers, and infrared sensors are not described here.
  • Audio circuitry 370, speaker 371, microphone 372 can provide an audio interface between the user and handset 300.
  • the audio circuit 370 can transmit the converted electrical data of the received audio data to the speaker 371, and convert it into a sound signal output by the speaker 371; on the other hand, the microphone 372 converts the collected sound signal into an electrical signal, by the audio circuit 370. After receiving, it is converted to audio data, and then the audio data is output to the RF circuit 320 for transmission to, for example, another mobile phone, or the audio data is output to the memory 330 for further processing.
  • Processor 380 is the control center of handset 300, which connects various portions of the entire handset using various interfaces and lines, by running or executing software programs and/or modules stored in memory 330, and recalling data stored in memory 330, The various functions and processing data of the mobile phone 300 are performed to perform overall monitoring of the mobile phone.
  • the processor 380 may include one or more processing units; preferably, the processor 380 may integrate an application processor and a modem processor, where the application processor mainly processes an operating system, a user interface, an application, and the like.
  • the modem processor primarily handles wireless communications. It will be appreciated that the above described modem processor may also not be integrated into the processor 380.
  • the processor 380 is configured to determine whether the data packet to be transmitted satisfies the condition of the received data packet filter, for example, whether the length of the data packet to be transmitted is less than or equal to the threshold of the data packet length, and the data to be transmitted. Whether the packet is a packet fragment or the like.
  • the processor 380 is further configured to determine whether to support the communication mechanism of Grant Free according to whether the data packet to be transmitted satisfies the condition of the data packet filter.
  • the processor 380 is also configured to map the data packet to be transmitted to a bearer for Grant Free transmission.
  • the handset 300 also includes a power source 390 (such as a battery) that supplies power to the various components.
  • a power source 390 such as a battery
  • the power source can be logically coupled to the processor 380 via a power management system to manage functions such as charging, discharging, and power management through the power management system.
  • the mobile phone 300 may further include a WiFi (Wireless Fidelity) module, a Bluetooth module, and the like, and details are not described herein again.
  • WiFi Wireless Fidelity
  • Bluetooth Wireless Fidelity
  • a data communication method provided by an embodiment of the present application is applicable to the system architecture shown in FIG. 1, and specifically includes:
  • the UE sends a session establishment request to the SMF entity.
  • the session setup request message is sent to the AMF entity.
  • the AMF entity selects the UE for the UE.
  • the corresponding SMF entity forwards the Session Setup Request message to the SMF.
  • the SMF entity determines whether the UE can use the Grant Free communication mechanism.
  • the SMF entity after receiving the Session Setup Request message sent by the UE, the SMF entity sends a message verifying the UE context (Verify UE Context) to the UDM entity, and obtains the subscription information of the UE from the UDM entity to determine the legality of the UE. Sex.
  • the subscription may carry information about whether the UE can perform the communication mechanism of Grant Free.
  • the SMF entity obtains an Applicator Policy from the PCF entity, and the policy may also carry information about whether the communication network supports Grant Free's communication mechanism, so that the SMF entity can be based on the UE's subscription or The policy determines if the UE can use Grant Free's communication mechanism in the communication network.
  • the SMF entity When it is determined that the UE can use the Grant Free communication mechanism, the SMF entity generates packet filtering information.
  • the data packet filtering information may include: a threshold of the data packet length and a packet fragmentation indication.
  • the threshold of the packet length is the maximum value of the data packet that allows the use of the Grant Free communication mechanism.
  • the packet fragmentation indicates whether the fragmented packet is allowed to use the Grant Free communication mechanism. It should be noted that it is not enough to judge whether the data packet can use the Grant Free communication mechanism based on the packet length. Because in the transmission of data packets, it is often the case that a large data packet is fragmented into several small data packets (ie, packet fragmentation) for transmission in view of transmission speed requirements or other factors. In this case, for packet fragmentation, even if a single packet fragment is a threshold less than the packet length, it cannot be transmitted using the Grant Free communication mechanism.
  • Grant Free's communication mechanism is not reliable. If a single packet fragment is lost or delayed, even if other packet fragments are successfully received, it does not make any sense, and it will cause waste of resources. Therefore, after determining that the length of a data packet is less than the threshold of the length of the data packet, it is further required to determine whether the data packet is a packet fragmentation. If the packet is not a packet fragment, then the Grant Free communication mechanism can be used, and if the packet is fragmented, the Grant Free communication mechanism cannot be used.
  • the packet filtering information also includes information such as the destination address and port of the packet.
  • the function of the packet filtering information is described below by taking the heartbeat packet of the WeChat to be transmitted or the data packet of the online game as an example.
  • the packet filtering information may be set as follows: 1. Add the IP address and port identifier of the server corresponding to the WeChat service to the destination IP address and port identifier of the Grant Free communication mechanism. Second, set the threshold of the packet length. Third, the packet fragmentation indication is set to not fragment. In this way, when the data packet to be transmitted satisfies the above three conditions at the same time, it may be a heartbeat packet service of WeChat, and the filtered data packet according to the packet filtering information can be determined as a service that is not required for QOS, and can use Grant. Free communication mechanism for transmission.
  • the packet filtering information may also be set such that the IP address and port identifier of the server corresponding to the online game service are prohibited from being used in the destination IP address and port identifier of the Grant Free communication mechanism. In this way, when the data packet to be transmitted satisfies the condition of the packet filtering information, it can be confirmed as a service packet related to the online game.
  • the Grant Free communication mechanism is not allowed if the filtered packet based on the packet filtering information can be determined to be a service that is required for QOS.
  • the SMF entity sends a Session Setup message to the RAN.
  • the Session Setup message includes a Grant Free Bearer Indication message.
  • the Grant Free Bearer Indication message is used to indicate that the RAN establishes a default bearer for the Grant Free data transmission for the UE, and the Grant Free Bearer Indication message also carries the packet filtering information generated by the SMF entity.
  • the RAN configures a bearer for the Grant Free data transmission for the UE according to the Session Setup message, and sends the bearer and the packet filtering information to the UE.
  • the RAN sends a confirmation message of the session setup complete (Session Setup Complete) to the SMF entity. This is shown in Fig. 4 as 105b.
  • the UE determines, according to the packet filtering information, whether the Grant Free communication mechanism is available for the data packet to be transmitted. If yes, step 107 is performed.
  • the data packet to be transmitted carries a field corresponding to the packet filtering information, such as a packet length field, whether it is a packet fragmentation, a field of a destination IP address of the data packet, and a field of the destination port identifier.
  • the packet filtering information such as a packet length field, whether it is a packet fragmentation, a field of a destination IP address of the data packet, and a field of the destination port identifier.
  • the UE determines, according to the content of each field in the data packet to be transmitted, whether the condition of the packet filtering information is met. For example, whether the value in the length field of the to-be-transmitted packet is less than or equal to the length threshold in the packet filtering information, and whether the value of the destination address field of the to-be-transmitted packet is equal to the server in the packet filtering information that is allowed to be transmitted using the Grant Free communication mechanism. The corresponding IP address, if satisfied, determines that the data packet to be transmitted can be transmitted using the Grant Free communication mechanism.
  • the to-be-transmitted data packet cannot be transmitted using the Grant Free communication mechanism, and optionally, the Service Request process is executed, that is, the traditional transmission method is used.
  • the Service Request process is executed, that is, the traditional transmission method is used.
  • the UE transmits the determined data packet to be transmitted by using a Grant Free communication mechanism.
  • the UE maps the determined data packet to be transmitted to the bearer for Grant Free data transmission, and transmits the data packet to be transmitted to the DN entity by using a transport mechanism of Grant Free.
  • the embodiment of the present application provides a data communication method. Compared with the prior art, the method only uses the Grant Free communication mechanism based on the size of the data packet of the service, and the method of determining the mode is single, and the data transmission cannot meet the requirements of different services. .
  • the SMF entity can set different packet filtering information and send it to the UE. The UE then filters the packets to be transmitted according to the packet filtering information to determine packets that can be transmitted using the Grant Free communication mechanism. Therefore, the data packet to be transmitted that does not satisfy the packet filtering information does not use the Grant Free communication mechanism, and the data packet to be transmitted that satisfies the packet filtering information can use the Grant Free communication mechanism. In this way, the method provided by the present application can meet the data transmission of different service requirements, and can improve the signaling efficiency while ensuring the QOS requirement of the service.
  • the embodiment of the present application further provides a data communication method, including:
  • the UE identifies the to-be-transmitted data packet that is determined to be transmittable by using the Grant Free communication mechanism.
  • the UE may mark a service quality flow identifier (QFI) for the determined data packet to be transmitted.
  • QFI service quality flow identifier
  • the L1 header is a physical layer header
  • the L2 header is a medium access control. (Media Access Control, MAC) layer, Radio Link Control (RLC) layer, and packet header of the Packet Data Convergence Protocol (PDCP) layer
  • PDCP Packet Data Convergence Protocol
  • PDU Protocol Data Unit
  • IP network protocol
  • QFI may be marked in the L2 header, which is used to indicate that the data packet to be transmitted can be transmitted using an unlicensed communication mechanism.
  • the UE may also invoke an Application Programming Interface (API) between the IP layer and the PDCP layer, where the API is used to indicate that the data packet can be transmitted using an unlicensed communication mechanism. lose.
  • API Application Programming Interface
  • the 3GPP protocol stack of the UE may be divided into an application layer, an IP layer, a PDCP layer, an RLC layer, a MAC layer, and a physical layer.
  • the UE determines, by using the IP layer, that the data packet to be transmitted can be transmitted by using the Grant Free communication mechanism, and the data packet to be transmitted is called through the API between the IP layer and the PDCP layer, and then the PDCP layer is instructed to use the Grant Free.
  • the data packet to be transmitted of the communication mechanism is processed and the data packet to be transmitted is mapped to the bearer for the Grant Free transmission.
  • the UE may also add a data packet header to the data packet to be transmitted, and the added data packet header is used to indicate that the data packet to be transmitted is transmitted by using an unlicensed communication mechanism.
  • the added header can also be used to mark QFI.
  • the embodiments of the present application provide three examples for the UE to identify the data packet to be transmitted that can use the Grant Free communication mechanism. However, the embodiment of the present application does not limit the specific implementation manner of the identifier.
  • the packet filtering information in step 103 may further include other indication information, for example, used to instruct the UE to determine whether the data packet to be transmitted has a corresponding downlink data packet, and information about possible transmission time of the downlink data packet.
  • the method may further include:
  • the UE determines whether the data packet transmitted by using the Grant Free communication mechanism has a corresponding downlink data packet.
  • the UE determines whether the data packet transmitted by using the Grant Free communication mechanism has a corresponding downlink data packet, and specifically, may be determined by the field content of the data packet. If the data packet has a corresponding downlink data packet, step 302 is performed; if not, step 303 is performed.
  • the UE receives the downlink data packet corresponding to the data packet on the bearer used for the Grant Free data transmission.
  • the UE may reserve a corresponding time for the bearer according to the possible transmission time of the downlink data in the filtering information.
  • the UE releases the bearer used for Grant Free data transmission.
  • the Grant Free bearer can continue to be used for receiving, without additional signaling, which is beneficial to save the use of signaling and is beneficial to improving data.
  • the efficiency of the transmission is beneficial to save the use of signaling and is beneficial to improving data.
  • the solution provided by the embodiment of the present application is mainly introduced from the perspective of interaction between the network elements.
  • the terminal and the network device include corresponding hardware structures and/or software modules for performing the respective functions in order to implement the above functions.
  • the present application can be implemented in a combination of hardware or hardware and computer software in combination with the elements and algorithm steps of the various examples described in the embodiments disclosed herein. Whether a function is implemented in hardware or computer software to drive hardware depends on the specific application and design constraints of the solution. A person skilled in the art can use different methods to implement the described functions for each particular application, but such implementation should not be considered to be beyond the scope of the present application.
  • the embodiments of the present application may perform the division of the function modules on the terminal and the network device according to the foregoing method.
  • each function module may be divided according to each function, or two or more functions may be integrated into one processing module.
  • the above integrated modules can be implemented in the form of hardware or in the form of software functional modules. It should be noted that the division of the module in the embodiment of the present application is schematic, and is only a logic. Functional division, there may be another way of dividing when actually implemented.
  • FIG. 8 is a schematic diagram showing a possible structure of the apparatus 800 involved in the foregoing embodiment.
  • the apparatus 800 includes a receiving unit 801 and a processing unit 802.
  • the receiving unit 801 is configured to support the apparatus 800 to perform the process 105 of FIG. 4;
  • the processing unit 802 is configured to support the apparatus 800 to perform the processes 106, 107 in FIG. 4, the process 201 in FIG. 5, and the processes 301-303 in FIG. All the related content of the steps involved in the foregoing method embodiments may be referred to the functional descriptions of the corresponding functional modules, and details are not described herein again.
  • the device 800 can be the mobile phone 300 as shown in FIG.
  • the receiving unit 801 may be the RF circuit 310 as shown in FIG. 3
  • the processing unit 802 may be a central processing unit (CPU), a general-purpose processor, and a digital processor as shown in FIG. Signal Processor (DSP), Application-Specific Integrated Circuit (ASIC), Field Programmable Gate Array (FPGA) or other programmable logic device, transistor logic device, hardware component Or any combination thereof.
  • DSP Signal Processor
  • ASIC Application-Specific Integrated Circuit
  • FPGA Field Programmable Gate Array
  • the processor can also be a combination of computing functions, for example, including one or more microprocessor combinations, a combination of a DSP and a microprocessor, and the like.
  • FIG. 9 is a schematic diagram showing a possible structure of the apparatus 900 involved in the foregoing embodiment.
  • the apparatus 900 includes a processing unit 901 and a sending unit 902.
  • the processing unit 901 is configured to support the apparatus 900 to perform the processes 102c, 103 of FIG.
  • the transmitting unit 902 is configured to support the apparatus 900 to perform the process 104 in FIG. All the related content of the steps involved in the foregoing method embodiments may be referred to the functional descriptions of the corresponding functional modules, and details are not described herein again.
  • the device 900 may be an SMF entity as shown in FIG. 2.
  • the sending unit 902 can be the transceiver 202 as shown in FIG. 2.
  • the processing unit 901 may be the processor 201 as shown in FIG. 2, and may be, for example, a central processing unit (CPU), a general-purpose processor, a digital signal processor (DSP), and an application specific integrated circuit (Application). -Specific Integrated Circuit (ASIC), Field Programmable Gate Array (FPGA) or other programmable logic device, transistor logic device, hardware component, or any combination thereof. It is possible to implement or carry out the various illustrative logical blocks, modules and circuits described in connection with the present disclosure.
  • the processor can also be a combination of computing functions, for example, including one or more microprocessor combinations, a combination of a DSP and a microprocessor, and the like.
  • the structure of the foregoing apparatus 800 may also be a terminal 1000 as shown in FIG. 10, and the terminal 1000 includes: a processor 1001, a transceiver 1002, a memory 1003, and a bus 1004.
  • the transceiver 1002, the processor 1001, and the memory 1003 are connected to each other through a bus 1004.
  • the bus 1004 may be a Peripheral Component Interconnect (PCI) bus or an Extended Industry Standard Architecture (EISA) bus. Wait.
  • PCI Peripheral Component Interconnect
  • EISA Extended Industry Standard Architecture
  • the bus can be divided into an address bus, a data bus, a control bus, and the like. For ease of representation, only one thick line is shown in FIG. 10, but it does not mean that there is only one bus or one type of bus.
  • the structure of the foregoing apparatus 900 may also be a network device 1100 as shown in FIG. 11.
  • the network device 1100 entity includes a processor 1101, a transceiver 1102, a memory 1103, and a bus 1104.
  • the transceiver 1102, the processor 1101, and the memory 1103 are connected to each other through a bus 1104.
  • the bus 1104 may be a Peripheral Component Interconnect (PCI) bus or an extended industry standard structure (Extended Industry Standard Architecture, EISA) bus, etc.
  • PCI Peripheral Component Interconnect
  • EISA Extended Industry Standard Architecture
  • the bus can be divided into an address bus, a data bus, a control bus, and the like. For ease of representation, only one thick line is shown in Figure 11, but it does not mean that there is only one bus or one type of bus.
  • the steps of a method or algorithm described in connection with the present disclosure may be implemented in a hardware or may be implemented by a processor executing software instructions.
  • the software instructions may be composed of corresponding software modules, which may be stored in a random access memory (RAM), a flash memory, a read only memory (ROM), an erasable programmable read only memory ( Erasable Programmable ROM (EPROM), electrically erasable programmable read only memory (EEPROM), registers, hard disk, removable hard disk, compact disk read only (CD-ROM) or any other form of storage medium known in the art.
  • An exemplary storage medium is coupled to the processor to enable the processor to read information from, and write information to, the storage medium.
  • the storage medium can also be an integral part of the processor.
  • the functions described herein can be implemented in hardware, software, firmware, or any combination thereof.
  • the functions may be stored in a computer readable medium or transmitted as one or more instructions or code on a computer readable medium.
  • Computer readable media includes both computer storage media and communication media including any medium that facilitates transfer of a computer program from one location to another.
  • a storage medium may be any available media that can be accessed by a general purpose or special purpose computer.

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  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

Selon certains modes de réalisation, la présente invention se rapporte au domaine technique des communications. L'invention concerne un procédé, un dispositif et un système de communication de données, destinés à être utilisés pour résoudre le problème dans l'état de la technique d'incapacité à satisfaire une transmission de données de différentes exigences de service dans le cas de la détermination du fait qu'il faut utiliser un mécanisme de communication sans octroi uniquement sur la base de la taille d'un paquet de données à transmettre. Le procédé comprend les étapes suivantes : un équipement utilisateur (UE) reçoit des informations de filtrage de paquets de données envoyées par une entité de fonction de gestion de session (SMF), les informations de filtrage de paquets de données comprenant un seuil de longueur de paquet de données et une instruction de fragmentation de paquet de données ; si l'UE détermine que la longueur du paquet de données à transmettre est inférieure ou égale au seuil de longueur de paquet de données, et le paquet de données à transmettre n'est pas des fragments de paquet de données, alors l'UE détermine que le paquet de données à transmettre peut utiliser le mécanisme de communication sans autorisation. Les modes de réalisation de la présente invention sont appliqués dans un processus de transmission de paquets de données.
PCT/CN2017/085575 2017-04-14 2017-05-23 Procédé, dispositif, et système de communication de données WO2018188170A1 (fr)

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CN112804716B (zh) * 2020-12-29 2023-04-28 联想未来通信科技(重庆)有限公司 一种数据限值的配置方法、装置及存储介质

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7885394B2 (en) * 2006-10-31 2011-02-08 Motorola Mobility, Inc. Method and system for call reverse
WO2016205992A1 (fr) * 2015-06-23 2016-12-29 华为技术有限公司 Procédé de transfert intercellulaire pour une émission non autorisée, appareil de terminal et équipement de réseau
WO2016205991A1 (fr) * 2015-06-23 2016-12-29 华为技术有限公司 Procédé d'émission sans licence, équipement d'utilisateur, dispositif d'accès au réseau et appareil de réseau central
CN106507497A (zh) * 2015-09-08 2017-03-15 华为技术有限公司 用于上行数据传输的方法、终端设备和网络设备

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7885394B2 (en) * 2006-10-31 2011-02-08 Motorola Mobility, Inc. Method and system for call reverse
WO2016205992A1 (fr) * 2015-06-23 2016-12-29 华为技术有限公司 Procédé de transfert intercellulaire pour une émission non autorisée, appareil de terminal et équipement de réseau
WO2016205991A1 (fr) * 2015-06-23 2016-12-29 华为技术有限公司 Procédé d'émission sans licence, équipement d'utilisateur, dispositif d'accès au réseau et appareil de réseau central
CN106507497A (zh) * 2015-09-08 2017-03-15 华为技术有限公司 用于上行数据传输的方法、终端设备和网络设备

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