WO2021128913A1 - Procédé d'amélioration de mécanisme ecn de liaison montante de réseau cellulaire, dispositif et support - Google Patents

Procédé d'amélioration de mécanisme ecn de liaison montante de réseau cellulaire, dispositif et support Download PDF

Info

Publication number
WO2021128913A1
WO2021128913A1 PCT/CN2020/111772 CN2020111772W WO2021128913A1 WO 2021128913 A1 WO2021128913 A1 WO 2021128913A1 CN 2020111772 W CN2020111772 W CN 2020111772W WO 2021128913 A1 WO2021128913 A1 WO 2021128913A1
Authority
WO
WIPO (PCT)
Prior art keywords
sending terminal
uplink
tcp
notification message
sending
Prior art date
Application number
PCT/CN2020/111772
Other languages
English (en)
Chinese (zh)
Inventor
陈晓宇
韩立锋
顾祥新
Original Assignee
展讯通信（上海）有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 展讯通信（上海）有限公司 filed Critical 展讯通信（上海）有限公司
Publication of WO2021128913A1 publication Critical patent/WO2021128913A1/fr

Links

Images

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/02—Arrangements for optimising operational condition
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W28/00—Network traffic management; Network resource management
    • H04W28/02—Traffic management, e.g. flow control or congestion control
    • H04W28/0284—Traffic management, e.g. flow control or congestion control detecting congestion or overload during communication
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W28/00—Network traffic management; Network resource management
    • H04W28/02—Traffic management, e.g. flow control or congestion control
    • H04W28/0289—Congestion control

Definitions

  • the present invention relates to the field of control technology, in particular to a method, equipment and medium for enhancing the uplink ECN mechanism of a cellular network.
  • the base station can forward the message sent by the sending terminal to the receiving end.
  • the base station detects that the air interface link is in a congested state, it uses existing mechanisms such as the uplink display congestion notification (Explicit The Congestion Notification (ECN) mechanism sends a message that the air interface link is in a congested state to the receiving end, and the receiving end feeds back the congestion information of the air interface link to the sending terminal.
  • ECN Exlicit The Congestion Notification
  • the ECN mechanism is deployed in the base station of the existing cellular network air interface uplink, by notifying the receiving end of the information that the air interface uplink is in a congested state, and then the receiving end feeds back the congestion message to the sending terminal.
  • the feedback delay affects the timeliness of data rate adjustment and causes problems such as poor user experience.
  • the embodiment of the present invention provides a method, equipment and medium for enhancing the ECN mechanism in the uplink of a cellular network, which can improve the accuracy of the rate adjustment of the sending terminal.
  • this application provides a method for enhancing the uplink ECN mechanism of a cellular network, which is applied to a base station, and the method includes:
  • the base station detects whether the air interface uplink between the transmitting terminal and the base station is in a congested state
  • the air interface uplink is in a congested state, sending a notification message to the sending terminal, where the notification message is used to notify the sending terminal that the air interface uplink is congested.
  • this application provides another method for enhancing the uplink ECN mechanism of a cellular network, which is applied to a sending terminal, and the method includes:
  • the indication information of the congestion status information is sent to the upper layer, and the upper layer refers to the Internet Protocol IP layer or the Transmission Control Protocol TCP layer.
  • the present application provides a transmission device with enhanced ECN mechanism on the uplink of a cellular network, which is applied to a base station, and the device includes a processor and a memory;
  • the memory is used to store programs
  • the processor executes the program stored in the memory, and when the program is executed, the processor is configured to execute the following steps:
  • the air interface uplink is in a congested state, sending a notification message to the sending terminal, where the notification message is used to notify the sending terminal that the air interface uplink is congested.
  • this application provides another transmission device with enhanced ECN mechanism for the uplink of a cellular network, which is applied to a base station and includes: a processing module and a communication module,
  • the processing module is configured to generate the notification message, where the notification message includes congestion status information of the air interface uplink between the sending terminal and the base station.
  • the communication module is configured to send the notification message generated by the processing module to the sending terminal.
  • the present application provides yet another transmission device with enhanced ECN mechanism on the uplink of a cellular network, which is applied to a sending terminal, and the device includes: a processor and a memory;
  • the memory is used to store programs
  • the processor executes the program stored in the memory, and when the program is executed, the processor is configured to execute the following steps:
  • the indication information of the congestion status information is sent to the upper layer, and the upper layer refers to the Internet Protocol IP layer or the Transmission Control Protocol TCP layer.
  • this application provides yet another transmission device with enhanced ECN mechanism for cellular network uplink, which is applied to a sending terminal, and the device includes: a communication module and a processing module,
  • the communication module is configured to receive the notification message sent by the base station, where the notification message includes congestion status information of the air interface uplink between the sending terminal and the base station;
  • the communication module is further configured to send the instruction information generated by the processing module to an upper layer, where the upper layer refers to an IP or TCP layer;
  • the processing module is configured to generate indication information, where the indication information includes the TCP information contained in the notification message from the base station indicating that the air interface uplink is in a congested state, wherein the TCP information includes a TCP sequence number .
  • the present application provides a base station, including: a processor and a memory;
  • the memory is used to store programs
  • the processor executes the program stored in the memory, and when the program is executed, the processor is configured to execute the following steps:
  • the air interface uplink is in a congested state, sending a notification message to the sending terminal, where the notification message is used to notify the sending terminal that the air interface uplink is congested.
  • an embodiment of the present invention provides a terminal, including: a processor and a memory;
  • the memory is used to store programs
  • the processor executes the program stored in the memory, and when the program is executed, the processor is configured to execute the following steps:
  • the indication information of the congestion status information is sent to the upper layer, and the upper layer refers to the Internet Protocol IP layer or the Transmission Control Protocol TCP layer.
  • the present application provides a computer-readable storage medium that stores a computer program, and when the computer program is executed by a processor, it is the same as the cellular network uplink described in the first or second aspect above.
  • An enhanced method of the link ECN mechanism is the same as the cellular network uplink described in the first or second aspect above.
  • the present application provides a computer program product, including instructions, which when run on a computer, cause the computer to execute the enhanced method of the cellular network uplink ECN mechanism as described in the first or second aspect above .
  • the base station can detect whether the air interface uplink between the sending terminal and the base station is in a congested state, and if the air interface uplink is in a congested state, it can send a notification message to the sending terminal, where the notification message It is used to notify the sending terminal that the air interface uplink is congested, so that the sending terminal adjusts the TCP packet sending rate after receiving the notification information sent from the base station.
  • the sending terminal can adjust the uplink data sending rate in time, reduce the feedback delay of the uplink data transmission of the cellular network, help improve the accuracy of the sending terminal rate adjustment, and improve the efficiency of data transmission.
  • FIG. 1 is a schematic structural diagram of a data transmission system provided by an embodiment of the present invention
  • FIG. 2 is a schematic flowchart of a method for enhancing the uplink ECN mechanism of a cellular network according to an embodiment of the present invention
  • FIG. 3 is a schematic flowchart of another method for enhancing the uplink ECN mechanism of a cellular network according to an embodiment of the present invention
  • FIG. 4 is a schematic flowchart of another method for enhancing the uplink ECN mechanism of a cellular network according to an embodiment of the present invention
  • FIG. 5 is a schematic flowchart of another method for enhancing the uplink ECN mechanism of a cellular network according to an embodiment of the present invention
  • FIG. 6 is a schematic flowchart of another method for enhancing the uplink ECN mechanism of a cellular network according to an embodiment of the present invention.
  • FIG. 7 is a schematic structural diagram of a transmission device for a cellular network uplink enhanced ECN mechanism provided by an embodiment of the present invention.
  • FIG. 8 is a schematic structural diagram of another transmission device with enhanced ECN mechanism on the uplink of a cellular network according to an embodiment of the present invention.
  • FIG. 9 is a schematic structural diagram of yet another transmission device with enhanced ECN mechanism on the uplink of a cellular network according to an embodiment of the present invention.
  • FIG. 10 is a schematic structural diagram of yet another transmission device for the enhanced ECN mechanism of a cellular network uplink provided by an embodiment of the present invention.
  • the method for enhancing the uplink ECN mechanism of the cellular network may be executed by a data transmission system including a base station, a sending terminal, a receiving terminal, a core network, and a router.
  • the transmitting terminal may establish a communication connection channel with the receiving terminal through the base station.
  • the communication connection channel may be a transmission control protocol (Transmission Control Protocol) between the transmitting terminal and the base station. Protocol, TCP) established TCP channel; in some embodiments, the communication connection channel may be a UDP channel established by the sending terminal and the base station through the User Datagram Protocol (UDP).
  • TCP Transmission Control Protocol
  • the sending terminal may perform two-way communication with the base station through the communication connection channel.
  • the receiving terminal and the base station may also establish a TCP channel through a core network and a router or establish a UDP channel through UDP, so that the receiving terminal can conduct a two-way communication connection with the base station to perform Two-way communication.
  • the sending terminal and the receiving terminal respectively establish a communication connection with the base station, and then realize the communication connection between each other via the base station.
  • the sending terminal, base station, and receiving terminal may communicate in a public communication network.
  • the public communication network may include a public wireless communication network, such as a fourth-generation mobile communication network. (the 4th Generation mobile communication technology, 4G) or fifth-generation mobile communication network (Fifth-Generation, 5G) and other mobile communication networks; of course, in other embodiments, it is not limited to the above-mentioned 4G or 5G mobile communication networks. As long as it is a public wireless communication network.
  • the sending terminal may be set on a terminal device (such as a mobile phone, a tablet computer, etc.) including a display device (such as a user interface); in some embodiments, the receiving terminal may be set on a terminal device including a display device (such as a user interface); Display devices (such as user interface) on terminal devices (such as mobile phones, tablet computers, etc.). It can be understood that, for the terminal device, if related operations may not be performed through the display device in some application scenarios, the terminal device may not include the display device.
  • the packet data convergence protocol layer Packet Data Convergence Protocol, PDCP
  • service Data Unit, SDU carries two ECN-enabled transmissions (Explicit Congestion) Notification Transmission, ECT), such as ECT(0) or ECT(1)
  • ECT Exlicit Congestion
  • CE Congestion Experienced
  • the purpose is to notify the receiving terminal to feed back an acknowledgement signal (Acknowledge Character, ACK) to the transmitting terminal, so as to notify the transmitting terminal that the air interface uplink is congested.
  • ACK acknowledgement Signal
  • the uplink ECN sent from the base station to the receiving terminal needs to be forwarded by the core network and router.
  • the sending terminal performs rate adjustment when receiving the ACK feedback from the receiving terminal. There is a long time delay between this, which causes a high feedback delay. In turn, the sending terminal cannot adjust the transmission rate in time, which may cause data packet loss and affect user experience.
  • the ECN mechanism can modify the Internet Protocol (IP) header.
  • IP Internet Protocol
  • TOS Type of Service
  • the res field of the 8th bit is redefined as an ECN field.
  • the ECN field includes four values: 00 indicates that ECN is not supported; 01 and 10 indicate that ECN is supported; 11 indicates that the message is congested.
  • the functions that need to be implemented to support ECN when congestion occurs are as follows:
  • the ECN mechanism can also modify the TCP header.
  • the ECN modifies the 8th and 9th bits of the TCP header res field to Congestion Window Reduce (CWR).
  • CWR Congestion Window Reduce
  • ECE explicit congestion notification response
  • the 7th bit is modified to a random sum (Nonce Sum, NS).
  • the random sum is used for experimental addition, which can prevent accidental or malicious changes to the packet marking.
  • the sending rate is adjusted, such as halved, and the CWR bit is set to 1 when sending the next message.
  • the embodiment of the present invention proposes a cellular network uplink ECN mechanism enhancement method that enhances the ECN mechanism.
  • the base station directly feeds back the uplink congestion situation to the transmitting terminal on the air interface link, thereby reducing the uplink feedback delay. Improve the real-time performance of rate adjustment, so that the sending terminal can adjust the rate more timely.
  • the method for enhancing the cellular network uplink ECN mechanism proposed in the embodiment of the present invention also includes a processing mechanism for redundant feedback signals, which further improves the accuracy of the sending terminal's rate adjustment.
  • the base station when the base station detects that the air interface uplink between the transmitting terminal and the base station is in a congested state, it may use the Protocol Data Unit (PDU) in the Radio Link Control layer (Radio Link Control, RLC). ) Or the control element (CE) in Media Access Control (MAC) notifies the sending terminal of the air interface uplink congestion, so that the sending terminal can do cross-layer processing and instruct the TCP layer to adjust the sending rate.
  • the manner of adjusting the sending rate includes, but is not limited to, reducing or increasing the sending rate, which is not specifically limited in the embodiment of the present invention.
  • the base station when the base station detects that the air interface uplink between the transmitting terminal and the base station is in a congested state, it can notify the transmitting terminal of the congestion condition of the air interface uplink through RLC control PDU or MAC CE, so that the transmitting terminal It can do cross-layer processing, instruct the TCP layer to adjust the sending rate, and notify the TCP layer to record the TCP sequence numbers that have been sent in the nearest interval but have not yet been confirmed by the receiving terminal.
  • the interval range includes but is not limited to the time range T or the number range M, which is not specifically limited in the embodiment of the present invention.
  • the base station when the base station detects that the air interface uplink between the sending terminal and the base station is in a congested state, it can parse the IP header and TCP header included in the PDCP SDU corresponding to the message in the PDCP layer, and obtain The target TCP header information and the uplink congestion flag are fed back to the sending terminal through a PDCP control PDU or a radio resource control protocol (Radio Resource Control, RRC) message.
  • RRC Radio Resource Control
  • the sending terminal instructs the congestion notification to the TCP layer, and the TCP layer of the sending terminal records the feedback information and adjusts the sending rate.
  • the feedback information includes a TCP sequence number and the like.
  • the base station directly feeds back the air interface uplink congestion information to the sending terminal, which can reduce the uplink feedback delay, but it will introduce a problem: if the sending terminal subsequently receives the uplink congestion flag fed back by the receiving terminal again, Since the congestion flag corresponding to the uplink of the air interface has actually been directly fed back by the base station to the sending terminal, and the sending terminal has responded and adjusted the sending rate. Therefore, for this redundant uplink congestion flag feedback, the specific processing implementation is as follows.
  • the base station when the base station detects that the air interface uplink between the transmitting terminal and the base station is in a congested state, it may not set the ECN bit of the PDCP SDU, so that the subsequent transmitting terminal receives an ACK with ECE set.
  • the packet When the packet is received, it can be processed according to the normal ECN mechanism. Through this implementation manner, it can be avoided that the sending rate is adjusted again when the redundant uplink congestion flag is received, thereby ensuring the accuracy of the sending terminal's adjustment of the sending rate.
  • the ECN bit of the PDCP SDU may be set. If the sending terminal subsequently receives an ACK packet corresponding to the TCP sequence number that has been responded to and the ECE is set, the sending terminal does not adjust the sending rate, and according to the normal ECN mechanism, when sending the next message, the TCP header The CWR bit is set to notify the receiving terminal to stop setting the ECE bit of the subsequent ACK signal.
  • the embodiment of the present invention may include the foregoing single solution or a combination of certain solutions, and the embodiment of the present invention does not specifically limit the combination of solutions.
  • FIG. 1 is a schematic structural diagram of a data transmission system according to an embodiment of the present invention.
  • the data transmission system includes: a base station 11, a sending terminal 12, a receiving terminal 13, a core network 14 and a router 15.
  • the sending terminal 12 may establish a communication connection with the receiving terminal 13 through the base station 11.
  • the receiving terminal 13 and the base station 11 may also establish a communication connection through the core network 14 and the router 15 so that the receiving terminal 13 can perform a two-way communication connection with the base station 11. In this way, the sending terminal 12 and the receiving terminal 13 establish a communication connection with the base station 11 respectively, and then realize the communication connection between each other via the base station 11.
  • Figure 2 is a schematic flowchart of a method for enhancing the uplink ECN mechanism of a cellular network according to an embodiment of the present invention.
  • the method can be applied to a base station, where the specific explanation of the base station is as described above. .
  • the method of the embodiment of the present invention includes the following steps.
  • S201 Detect whether the air interface uplink between the sending terminal and the base station is in a congested state.
  • the base station can detect whether the air interface uplink between the sending terminal and the base station is in a congested state.
  • the base station may send a notification message to the sending terminal, where the notification message is used to notify the sending terminal of the air interface uplink Congestion occurs, so that the sending terminal adjusts the sending rate of sending the next message.
  • the adjusting the sending rate includes, but is not limited to, increasing or decreasing the sending rate, which is not specifically limited here.
  • the sending terminal can adjust the sending rate of the message, and avoid the problem that the sending terminal is still sending messages quickly when the air interface uplink between the sending terminal and the base station is congested, resulting in the loss of part of the message data.
  • the base station may determine an adjustment identifier for adjusting the transmission rate according to the congestion situation, and generate a notification message carrying the adjustment identifier, the adjustment identifier being used to instruct the sending terminal to increase or decrease the transmission rate data; in an example, The adjustment indicator is used to instruct the sending terminal to reduce the sending rate by half.
  • the sending terminal can be notified to adjust the specific value of the sending rate, so as to improve the accuracy of the sending terminal in adjusting the sending rate.
  • the base station when it sends a notification message to the sending terminal, it may send the control protocol data unit RLC control PDU of the radio link control layer carrying the uplink congestion flag as a notification message to the sending terminal; or, The control element MAC CE of the media access control layer carrying the uplink congestion flag is sent to the sending terminal as a notification message, where the MAC CE includes the data radio bearer (DRB) or logical channel where the air interface uplink is congested (Logical Channel, LCH) identification information.
  • DRB data radio bearer
  • LCH Logical Channel
  • the notification message is used to notify the sending terminal to adjust the sending rate through the TCP layer of the Transmission Control Protocol; and/or to notify the sending terminal to record that the sending terminal has sent within a specified interval But the TCP sequence number that has not been confirmed to be received.
  • the sending terminal it is helpful for the sending terminal to determine whether the TCP sequence number of the unconfirmed reception exists in the ACK signal when receiving the ACK signal fed back by the receiving terminal.
  • the base station when it sends a notification message to the sending terminal, it may send a packet data convergence protocol layer protocol data unit PDCP PDU carrying an uplink congestion flag as a notification message to the sending terminal; wherein, the The PDCP PDU contains the TCP sequence number of the congested data packet.
  • PDCP PDU packet data convergence protocol layer protocol data unit
  • the base station when it sends a notification message to the sending terminal, it may send a radio resource control RRC message that carries the uplink congestion flag and target TCP header information as a notification message to the sending terminal.
  • the notification message also includes identification information of the DRB or LCH that is congested on the air interface uplink.
  • the notification message is used to notify the sending terminal to adjust the sending rate through the TCP layer of the Transmission Control Protocol, and is used to notify the sending terminal to record the target TCP header information, and the target TCP header information includes TCP serial number.
  • the base station when detecting that the air interface uplink is in a congested state, may set or not set the display congestion notification ECN bit of the service data unit PDCP SDU of the packet data convergence protocol layer.
  • the base station can detect whether the air interface uplink between the sending terminal and the base station is in a congested state, and if the air interface uplink is in a congested state, it can send a notification message to the sending terminal, where the The notification message is used to notify the sending terminal that the air interface uplink is congested.
  • the sending terminal can adjust the uplink data sending rate in time, reduce the feedback delay of the uplink data transmission of the cellular network, help improve the accuracy of the sending terminal's rate adjustment, and improve the efficiency of data transmission.
  • FIG. 3 is a schematic flowchart of another method for enhancing the uplink ECN mechanism of a cellular network according to an embodiment of the present invention, and the method may be executed by a base station.
  • the detailed implementation process of the method for enhancing the uplink ECN mechanism of the cellular network corresponding to the base station in the embodiment of the present invention is schematically described as follows.
  • S301 Detect whether the air interface uplink between the sending terminal and the base station is in a congested state.
  • the base station can detect whether the air interface uplink between the sending terminal and the base station is in a congested state.
  • the ECN bit of the protocol data unit PDCP SDU of the packet data convergence protocol layer may not be set.
  • the explanation of the ECN mechanism is as described above, and will not be repeated here. Through this implementation manner, it is helpful for the transmitting terminal to determine that the air interface is not in a congested state when subsequently receiving an ACK signal that includes the ECN setting (that is, including the ECE setting), and transmits data according to the normal ECN mechanism.
  • S303 Send the control protocol data unit RLC control PDU of the radio link control layer carrying the uplink congestion flag as a notification message to the sending terminal; or send the control element MAC CE of the media access control layer carrying the uplink congestion flag as a notification The message is sent to the sending terminal.
  • the base station may send the control protocol data unit RLC control PDU of the radio link control layer carrying the uplink congestion flag as a notification message to the sending terminal; or, the media access control layer carrying the uplink congestion flag
  • the control element MAC CE is sent to the sending terminal as a notification message, where the MAC CE includes the identification information of the data radio bearer DRB or LCH that is congested on the air interface uplink.
  • the notification message is used to notify the sending terminal of the occurrence of congestion on the air interface uplink, so that the sending terminal can adjust the sending rate of the message through TCP, and after receiving the notification message, after receiving the When the terminal returns an ACK packet containing the ECE setting, it shall be processed according to the ECN mechanism.
  • the base station does not set the ECN bit of the PDCP SDU when it detects that the air interface uplink between the transmitting terminal and the base station is in a congested state, and uses the RLC control PDU carrying the uplink congestion flag as a notification
  • the message is sent to the sending terminal; or, by sending a notification message carrying MAC CE to the sending terminal, the sending terminal can adjust the uplink data transmission rate in time, reduce the feedback delay of the cellular network uplink data transmission, and help improve the rate adjustment of the sending terminal
  • the accuracy of data transmission improves the efficiency of data transmission.
  • FIG. 4 is a schematic flowchart of another method for enhancing the uplink ECN mechanism of a cellular network according to an embodiment of the present invention, and the method may be executed by a base station.
  • the detailed implementation process of the method for enhancing the uplink ECN mechanism of the cellular network corresponding to the base station in the embodiment of the present invention is schematically described as follows.
  • S401 Detect whether the air interface uplink between the sending terminal and the base station is in a congested state.
  • the base station can detect whether the air interface uplink between the sending terminal and the base station is in a congested state.
  • the base station when the base station detects that the air interface uplink between the sending terminal and the base station is in a congested state, it can set the display congestion notification ECN bit of the service data unit PDCP SDU of the packet data convergence protocol layer.
  • the sending terminal it is helpful for the sending terminal to stop the sending rate when the ECN set (that is, the ECE set) contained in the ACK signal fed back by the receiving terminal carries the above-mentioned unconfirmed TCP sequence number. Make adjustments to further improve the accuracy of adjusting the sending rate.
  • the processing of setting the ECN bit of the PDCP SDU may include processing the ECN bit as a CE; in an example, the processing of processing the ECN bit as a CE may be setting the CE to 1.
  • S403 Send the control protocol data unit RLC control PDU of the radio link control layer carrying the uplink congestion flag as a notification message to the sending terminal; or send the control element MAC CE of the media access control layer carrying the uplink congestion flag as a notification The message is sent to the sending terminal, where the MAC CE contains the identification information of the data radio bearer DRB or LCH that is congested on the air interface uplink
  • the base station may send the control protocol data unit RLC control PDU of the radio link control layer carrying the uplink congestion flag as a notification message to the sending terminal; or, the media access control layer carrying the uplink congestion flag
  • the control element MAC CE is sent to the sending terminal as a notification message, where the MAC CE includes the identification information of the data radio bearer DRB or LCH that is congested on the air interface uplink.
  • the notification message is used to notify the sending terminal to adjust the sending rate through the TCP layer of the Transmission Control Protocol; and/or to notify the sending terminal to record that the sending terminal has sent within a specified interval But the TCP sequence number that has not been confirmed to be received.
  • the sending terminal can record the TCP sequence number that has been sent but not confirmed to be received in the most recent time through the TCP layer, and adjust the sending rate of the message.
  • the sending terminal receives the ECE sent by the receiving terminal, it is set. If the ACK packet contains the TCP sequence number recorded by the sending terminal, you can stop adjusting the sending rate through the TCP layer and process it according to the normal ECN mechanism.
  • the CWR bit of the TCP header is set to notify the receiving terminal to stop setting the ECE bit of the subsequent ACK signal.
  • the base station when the base station detects that the air interface uplink between the transmitting terminal and the base station is in a congested state, it can set the ECN bit of the PDCP SDU, and use the RLC PDU carrying the uplink congestion flag as the notification message Send to the sending terminal; or send the MAC CE carrying the uplink congestion flag as a notification message to the sending terminal, so that the sending terminal can adjust the sending rate through the TCP layer and record the sending terminal in the specified time range The TCP sequence number that has been sent but has not been confirmed to be received.
  • the sending terminal can adjust the uplink data sending rate in time, reduce the feedback delay of the uplink data transmission of the cellular network, help improve the accuracy of the sending terminal rate adjustment, and improve the efficiency of data transmission.
  • FIG. 5 is a schematic flowchart of another method for enhancing the uplink ECN mechanism of a cellular network according to an embodiment of the present invention, and the method may be executed by a base station.
  • the detailed implementation process of the method for enhancing the uplink ECN mechanism of the cellular network corresponding to the base station in the embodiment of the present invention is schematically described as follows.
  • S501 Detect whether the air interface uplink between the sending terminal and the base station is in a congested state.
  • the base station can detect whether the air interface uplink between the sending terminal and the base station is in a congested state.
  • the base station when detecting that the air interface uplink is in a congested state, sets the display congestion notification ECN bit of the service data unit PDCP and SDU of the packet data convergence protocol layer.
  • S503 Send a radio resource control RRC message carrying the uplink congestion flag and target TCP header information as a notification message to the sending terminal.
  • the base station may send a radio resource control RRC message that carries the uplink congestion flag and target TCP header information to the sending terminal as a notification message, where the notification message also includes the congestion of the air interface uplink. DRB or LCH identification information.
  • the notification message is used to notify the sending terminal to record the target TCP header information contained in the notification message through the TCP layer and adjust the sending rate, and the target TCP header information includes a TCP sequence number.
  • the base station may report the Internet protocol included in the PDCP SDU corresponding to the message
  • the IP header and the Transmission Control Protocol TCP header are parsed to obtain the target TCP header information, and the uplink congestion flag is obtained, so that the notification message including the uplink congestion flag and the target TCP header information is sent to the sending terminal.
  • the congestion window of the TCP header is reduced according to the ECN mechanism.
  • the CWR position is set.
  • the TCP header is used to notify the receiving terminal to stop setting the ECE bit of the ACK packet of the next message; if the judgment result is no, it will respond and process according to the normal ECN mechanism.
  • the base station may also send the PDCP control PDU carrying the uplink congestion flag and the target TCP header information as a notification message to the sending terminal.
  • the base station when the base station detects that the air interface uplink is in a congested state, it can set the ECN bit of the PDCP SDU, and send the RRC message carrying the target TCP header information and the uplink congestion flag as a notification message. To the sending terminal.
  • the sending terminal can adjust the uplink data sending rate in time, reduce the feedback delay of the uplink data transmission of the cellular network, help improve the accuracy of the sending terminal rate adjustment, and improve the efficiency of data transmission.
  • FIG. 6 is a schematic flowchart of another method for enhancing the uplink ECN mechanism of a cellular network according to an embodiment of the present invention.
  • the method may be executed by a terminal, and the terminal corresponds to the aforementioned sending terminal.
  • the detailed implementation process of the method for enhancing the uplink ECN mechanism of the cellular network corresponding to the embodiment of the present invention is schematically illustrated as follows.
  • S601 Receive a notification message from the base station indicating that the air interface uplink is in a congested state.
  • the sending terminal may receive a notification message from the base station indicating that the air interface uplink is in a congested state.
  • the notification message may be a PDCP PDU, RLC PDU, MAC CE, or RRC message.
  • the MAC CE and RRC messages include the identification information of the DRB or LCH that is congested on the air interface uplink.
  • S602 Send indication information of congestion state information to an upper layer, where the upper layer refers to the Internet Protocol IP layer or the Transmission Control Protocol TCP layer.
  • the sending terminal when the sending terminal receives a notification message from the base station indicating that the air interface uplink is in a congested state, it can send the indication information of the congestion state information to the upper layer.
  • the upper layer refers to the Internet Protocol IP layer or transmission control. Protocol TCP layer.
  • the indication information sent to the upper layer includes TCP information included in the notification message, where the TCP information includes a TCP sequence number.
  • the instruction information sent to the upper layer is used to notify the TCP layer of the sending terminal to adjust the sending rate of TCP packets.
  • the sending terminal may respond and process according to the display congestion notification ECN mechanism.
  • the indication information sent to the upper layer is used to notify the TCP layer of the sending terminal to record the TCP sequence number that the sending terminal has sent but not confirmed to be received within a specified interval.
  • the instruction information sent to the upper layer is used to notify the TCP layer of the sending terminal to adjust the sending rate of TCP packets; and/or the instruction information sent to the upper layer is also used to notify the sending
  • the TCP layer of the terminal records the TCP information contained in the indication information.
  • the TCP information includes a TCP sequence number.
  • the sending terminal when receiving an ACK packet that contains ECE set as a feedback from the receiving terminal, can determine whether the ACK packet contains the TCP sequence number recorded by the TCP layer, and if the judgment result is yes, it can No adjustment is made to the sending rate of TCP packets.
  • the sending terminal when sending the next message, reduces the congestion window of the TCP header according to the ECN mechanism, and the CWR bit is set.
  • the TCP header after the CWR is set is used to notify the receiving terminal to stop setting the ECE bit of the ACK packet of the next message.
  • the sending terminal may receive a notification message from the base station indicating that the air interface uplink is in a congested state, and send the indication information of the congestion state information to the upper layer.
  • the upper layer refers to the Internet Protocol IP layer or the Transmission Control Protocol TCP Floor.
  • the sending terminal can directly receive the notification message from the base station indicating that the air interface uplink is in a congested state, so that the sending terminal can adjust the uplink data transmission rate in time, reduce the feedback delay of the cellular network uplink data transmission, and help Improve the accuracy of the rate adjustment of the sending terminal and improve the efficiency of data transmission.
  • FIG. 7 is a schematic structural diagram of a transmission device for an enhanced ECN mechanism in a cellular network uplink according to an embodiment of the present invention.
  • the transmission device of the enhanced ECN mechanism of the cellular network uplink includes: a memory 701, a processor 702, and a data interface 703.
  • the memory 701 may include a volatile memory (volatile memory); the memory 701 may also include a non-volatile memory (non-volatile memory); the memory 701 may also include a combination of the foregoing types of memories.
  • the processor 702 may be a central processing unit (CPU).
  • the processor 702 may further include a hardware cellular network uplink enhanced ECN mechanism transmission device.
  • the transmission equipment of the hardware cellular network uplink enhanced ECN mechanism may be an application-specific integrated circuit (ASIC), a programmable logic device (PLD), or a combination thereof. Specifically, for example, it may be a complex programmable logic device (CPLD), a field-programmable gate array (FPGA), or any combination thereof.
  • ASIC application-specific integrated circuit
  • PLD programmable logic device
  • FPGA field-programmable gate array
  • the memory 701 is used to store a program, and when the program is executed, the processor 702 can call the program stored in the memory 701 to perform the following steps:
  • the air interface uplink is in a congested state, sending a notification message to the sending terminal, where the notification message is used to notify the sending terminal that the air interface uplink is congested.
  • the processor 702 sends a notification message to the sending terminal, it is specifically configured to:
  • the control element MAC CE of the media access control layer carrying the uplink congestion flag is sent to the sending terminal as a notification message, where the MAC CE contains the identification information of the data radio bearer DRB or LCH that is congested on the air interface uplink.
  • the notification message is used to notify the sending terminal to adjust the sending rate through the TCP layer of the Transmission Control Protocol; and/or to notify the sending terminal to record that the sending terminal has sent but has not been sent within a specified interval. Confirm the received TCP sequence number.
  • the processor 702 sends a notification message to the sending terminal, it is specifically configured to:
  • the protocol data unit PDCP PDU of the packet data convergence protocol layer carrying the uplink congestion flag is sent to the sending terminal as a notification message; wherein, the PDCP PDU includes the TCP sequence number of the congested data packet.
  • the processor 702 sends a notification message to the sending terminal, it is specifically configured to:
  • the radio resource control RRC message carrying the uplink congestion flag and target TCP header information is sent to the sending terminal as a notification message; wherein the notification message also includes identification information of the DRB or LCH that is congested on the air interface uplink.
  • the notification message is used to notify the sending terminal to adjust the sending rate, and the TCP information contained in the notification message is recorded at the TCP layer.
  • processor 702 is further configured to:
  • the display congestion notification ECN bit of the service data unit PDCP SDU of the packet data convergence protocol layer is set or not processed.
  • the embodiment of the present invention can check whether the air interface uplink between the sending terminal and the base station is in a congested state. If the air interface uplink is in a congested state, a notification message can be sent to the sending terminal to notify the sending terminal of the air interface uplink The link is congested. In this way, the sending terminal can adjust the uplink data sending rate in time, reduce the feedback delay of the uplink data transmission of the cellular network, help improve the accuracy of the sending terminal's rate adjustment, and improve the efficiency of data transmission.
  • FIG. 8 is a schematic structural diagram of another transmission device with an enhanced ECN mechanism for the uplink of a cellular network according to an embodiment of the present invention.
  • the transmission device of the enhanced ECN mechanism of the cellular network uplink includes: a first processing module 801 and a first communication module 802,
  • the first processing module 801 is configured to generate the notification message, where the notification message includes congestion status information of the air interface uplink between the sending terminal and the base station;
  • the first communication module 802 is configured to send the notification message generated by the processing module 801 to the sending terminal.
  • first communication module 802 is specifically configured to:
  • the control element MAC CE of the media access control layer carrying the uplink congestion flag is sent to the sending terminal as a notification message, where the MAC CE contains the identification information of the data radio bearer DRB or LCH that is congested on the air interface uplink.
  • the notification message is used to notify the sending terminal to adjust the sending rate through the TCP layer of the Transmission Control Protocol; and/or to notify the sending terminal to record that the sending terminal has sent but has not been sent within a specified interval. Confirm the received TCP sequence number.
  • first communication module 802 is specifically configured to:
  • the protocol data unit PDCP PDU of the packet data convergence protocol layer carrying the uplink congestion flag is sent to the sending terminal as a notification message; wherein, the PDCP PDU includes the TCP sequence number of the congested data packet.
  • first communication module 802 is specifically configured to:
  • the radio resource control RRC message carrying the uplink congestion flag and target TCP header information is sent to the sending terminal as a notification message; wherein the notification message also includes identification information of the DRB or LCH that is congested on the air interface uplink.
  • the notification message is used to notify the sending terminal to adjust the sending rate, and the TCP information contained in the notification message is recorded at the TCP layer.
  • first communication module 802 is also used for:
  • the display congestion notification ECN bit of the service data unit PDCP SDU of the packet data convergence protocol layer is set or not processed.
  • the embodiment of the present invention can check whether the air interface uplink between the sending terminal and the base station is in a congested state. If the air interface uplink is in a congested state, a notification message can be sent to the sending terminal to notify the sending terminal of the air interface uplink The link is congested. In this way, the sending terminal can adjust the uplink data sending rate in time, reduce the feedback delay of the uplink data transmission of the cellular network, help improve the accuracy of the sending terminal's rate adjustment, and improve the efficiency of data transmission.
  • FIG. 9 is a schematic structural diagram of yet another transmission device with an enhanced ECN mechanism on a cellular network uplink according to an embodiment of the present invention.
  • the transmission device of the enhanced ECN mechanism of the cellular network uplink includes: a memory 901, a processor 902, and a data interface 903.
  • the memory 901 may include a volatile memory (volatile memory); the memory 901 may also include a non-volatile memory (non-volatile memory); the memory 901 may also include a combination of the foregoing types of memories.
  • the processor 902 may be a central processing unit (CPU).
  • the processor 902 may further include a hardware cellular network uplink enhanced ECN mechanism transmission device.
  • the transmission equipment of the hardware cellular network uplink enhanced ECN mechanism may be an application-specific integrated circuit (ASIC), a programmable logic device (PLD), or a combination thereof. Specifically, for example, it may be a complex programmable logic device (CPLD), a field-programmable gate array (FPGA), or any combination thereof.
  • ASIC application-specific integrated circuit
  • PLD programmable logic device
  • FPGA field-programmable gate array
  • the memory 901 is used to store a program, and when the program is executed, the processor 802 can call the program stored in the memory 901 to perform the following steps:
  • the indication information of the congestion status information is sent to the upper layer, and the upper layer refers to the Internet Protocol IP layer or the Transmission Control Protocol TCP layer.
  • the instruction information sent to the upper layer includes TCP information included in the notification message, wherein the TCP information includes a TCP sequence number.
  • the notification message may be a PDCP PDU, RLC PDU, MAC CE, or RRC message.
  • the MAC CE and RRC messages include identification information of the DRB or LCH that is congested on the air interface uplink.
  • instruction information sent to the upper layer is used to notify the TCP layer of the sending terminal to adjust the sending rate of TCP packets.
  • processor 902 is further configured to:
  • the response processing is performed according to the ECN mechanism of the display congestion notification.
  • processor 902 is further configured to:
  • the instruction information sent to the upper layer is used to notify the TCP layer of the sending terminal to record the TCP sequence number that the sending terminal has sent but has not been confirmed to receive within a specified interval.
  • the instruction information sent to the upper layer is used to notify the TCP layer of the sending terminal to adjust the sending rate of TCP packets; and/or the instruction information sent to the upper layer is also used to notify the TCP of the sending terminal
  • the layer records the TCP information included in the indication information, where the TCP information includes a TCP sequence number.
  • processor 902 is further configured to:
  • the congestion window of the TCP header is reduced according to the ECN mechanism, and the CWR bit is set.
  • the upper layer may send indication information of the congestion state information to the upper layer.
  • the upper layer refers to the Internet Protocol IP layer or the Transmission Control Protocol TCP layer.
  • FIG. 10 is a schematic structural diagram of another transmission device with an enhanced ECN mechanism on a cellular network uplink according to an embodiment of the present invention.
  • the transmission device of the enhanced ECN mechanism of the cellular network uplink includes: a second communication module 1001 and a second processing module 1002,
  • the second communication module 1001 is configured to receive the notification message sent by the base station, where the notification message includes congestion status information of the air interface uplink between the sending terminal and the base station;
  • the second communication module 1001 is further configured to send the instruction information generated by the processing module to an upper layer, where the upper layer refers to an IP or TCP layer;
  • the second processing module 1002 is configured to generate indication information, where the indication information includes the TCP information contained in the notification message from the base station indicating that the air interface uplink is in a congested state, where the TCP information includes TCP sequence number.
  • the instruction information sent to the upper layer includes TCP information included in the notification message, wherein the TCP information includes a TCP sequence number.
  • the notification message may be a PDCP PDU, RLC PDU, MAC CE, or RRC message.
  • the MAC CE and RRC messages include identification information of the DRB or LCH that is congested on the air interface uplink.
  • instruction information sent to the upper layer is used to notify the TCP layer of the sending terminal to adjust the sending rate of TCP packets.
  • the second processing module 1002 is also used for:
  • the response processing is performed according to the display congestion notification ECN mechanism.
  • the instruction information sent to the upper layer is used to notify the TCP layer of the sending terminal to record the TCP sequence number that the sending terminal has sent but has not been confirmed to receive within a specified interval.
  • the instruction information sent to the upper layer is used to notify the TCP layer of the sending terminal to adjust the sending rate of TCP packets; and/or the instruction information sent to the upper layer is also used to notify the TCP of the sending terminal
  • the layer records the TCP information included in the indication information, where the TCP information includes a TCP sequence number.
  • the second processing module 1002 is also used for:
  • the congestion window of the TCP header is reduced according to the ECN mechanism, and the CWR bit is set.
  • the upper layer may send indication information of the congestion state information to the upper layer.
  • the upper layer refers to the Internet Protocol IP layer or the Transmission Control Protocol TCP layer.
  • An embodiment of the present invention provides a base station, including: a processor and a memory; the memory is used to store a program; the processor executes the program stored in the memory, and when the program is executed, the processor uses To perform the following steps:
  • the air interface uplink is in a congested state, sending a notification message to the sending terminal, where the notification message is used to notify the sending terminal that the air interface uplink is congested.
  • the processor sends a notification message to the sending terminal, it is specifically configured to:
  • the control element MAC CE of the media access control layer carrying the uplink congestion flag is sent to the sending terminal as a notification message, where the MAC CE contains the identification information of the data radio bearer DRB or LCH that is congested on the air interface uplink.
  • the notification message is used to notify the sending terminal to adjust the sending rate through the TCP layer of the Transmission Control Protocol; and/or to notify the sending terminal to record that the sending terminal has sent but has not been sent within a specified interval. Confirm the received TCP sequence number.
  • the processor sends a notification message to the sending terminal, it is specifically configured to:
  • the protocol data unit PDCP PDU of the packet data convergence protocol layer carrying the uplink congestion flag is sent to the sending terminal as a notification message; wherein, the PDCP PDU includes the TCP sequence number of the congested data packet.
  • the processor sends a notification message to the sending terminal, it is specifically configured to:
  • the radio resource control RRC message carrying the uplink congestion flag and target TCP header information is sent to the sending terminal as a notification message; wherein the notification message also includes identification information of the DRB or LCH that is congested on the air interface uplink.
  • the notification message is used to notify the sending terminal to adjust the sending rate, and the TCP information contained in the notification message is recorded at the TCP layer.
  • processor is also used for:
  • the display congestion notification ECN bit of the service data unit PDCP SDU of the packet data convergence protocol layer is set or not.
  • the embodiment of the present invention can check whether the air interface uplink between the sending terminal and the base station is in a congested state. If the air interface uplink is in a congested state, a notification message can be sent to the sending terminal to notify the sending terminal of the air interface uplink The link is congested. In this way, the sending terminal can adjust the uplink data sending rate in time, reduce the feedback delay of the uplink data transmission of the cellular network, help improve the accuracy of the sending terminal's rate adjustment, and improve the efficiency of data transmission.
  • An embodiment of the present invention provides a terminal, including: a processor and a memory; the memory is used to store a program; the processor executes the program stored in the memory, and when the program is executed, the processor uses To perform the following steps:
  • the indication information of the congestion status information is sent to the upper layer, and the upper layer refers to the Internet Protocol IP layer or the Transmission Control Protocol TCP layer.
  • the instruction information sent to the upper layer includes TCP information included in the notification message, wherein the TCP information includes a TCP sequence number.
  • the notification message may be a PDCP PDU, RLC PDU, MAC CE, or RRC message.
  • the MAC CE and RRC messages include identification information of the DRB or LCH that is congested on the air interface uplink.
  • instruction information sent to the upper layer is used to notify the TCP layer of the sending terminal to adjust the sending rate of TCP packets.
  • processor is also used for:
  • the response processing is performed according to the display congestion notification ECN mechanism.
  • the instruction information sent to the upper layer is used to notify the TCP layer of the sending terminal to record the TCP sequence number that the sending terminal has sent but has not been confirmed to receive within a specified interval.
  • the instruction information sent to the upper layer is used to notify the TCP layer of the sending terminal to adjust the sending rate of TCP packets; and/or the instruction information sent to the upper layer is also used to notify the TCP of the sending terminal
  • the layer records the TCP information included in the indication information, where the TCP information includes a TCP sequence number.
  • processor is also used for:
  • the congestion window of the TCP header is reduced according to the ECN mechanism, and the CWR bit is set.
  • the upper layer may send indication information of the congestion state information to the upper layer.
  • the upper layer refers to the Internet Protocol IP layer or the Transmission Control Protocol TCP layer.
  • a computer-readable storage medium stores a computer program.
  • the computer program is executed by a processor, the cellular network uplink described in the embodiment of the present invention is realized. The method of enhancing the link ECN mechanism will not be repeated here.
  • the computer-readable storage medium may be an internal storage unit of the device described in any of the foregoing embodiments, such as a hard disk or memory of the device.
  • the computer-readable storage medium may also be an external storage device of the device, such as a plug-in hard disk equipped on the device, a Smart Media Card (SMC), or a Secure Digital (SD) card. , Flash Card, etc.
  • the computer-readable storage medium may also include both an internal storage unit of the device and an external storage device.
  • the computer-readable storage medium is used to store the computer program and other programs and data required by the device.
  • the computer-readable storage medium can also be used to temporarily store data that has been output or will be output.
  • a computer program product including instructions, which when run on a computer, cause the computer to execute the enhanced method of the cellular network uplink ECN mechanism described in the embodiment of the present invention. This will not be repeated here.
  • the program can be stored in a computer readable storage medium, and the program can be stored in a computer readable storage medium. During execution, it may include the procedures of the above-mentioned method embodiments.
  • the computer-readable storage medium may be a magnetic disk, an optical disk, a read-only memory (Read-Only Memory, ROM), or a random access memory (Random Access Memory, RAM), etc.

Landscapes

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

Abstract

Le mode de réalisation de l'invention concerne un procédé d'amélioration d'un mécanisme ECN de liaison montante de réseau cellulaire, ainsi qu'un dispositif et un support, ledit procédé comprenant les étapes suivantes : une station de base détecte si une liaison montante d'interface radio est dans un état de congestion dans la transmission de données de liaison montante d'un terminal d'envoi ; si la liaison montante d'interface radio est dans l'état de congestion, la station de base envoie un message de notification au terminal d'envoi, le message de notification est utilisé pour notifier au terminal d'envoi que la liaison montante d'interface radio est congestionnée, de façon à ce que le terminal d'envoi ajuste la vitesse d'envoi du message TCP après réception du message de notification envoyé par la station de base. De cette manière, le terminal d'envoi peut ajuster la vitesse d'envoi des données de liaison montante en temps utile, et le retard de rétroaction de la transmission de données de liaison montante du réseau cellulaire est réduit, ce qui permet d'améliorer la précision du réglage de vitesse du terminal d'envoi et d'améliorer l'efficacité de transmission de données.
PCT/CN2020/111772 2019-12-24 2020-08-27 Procédé d'amélioration de mécanisme ecn de liaison montante de réseau cellulaire, dispositif et support WO2021128913A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201911372495.XA CN111065120B (zh) 2019-12-24 2019-12-24 蜂窝网络上行链路ecn机制的增强方法、设备及介质
CN201911372495.X 2019-12-24

Publications (1)

Publication Number Publication Date
WO2021128913A1 true WO2021128913A1 (fr) 2021-07-01

Family

ID=70302761

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2020/111772 WO2021128913A1 (fr) 2019-12-24 2020-08-27 Procédé d'amélioration de mécanisme ecn de liaison montante de réseau cellulaire, dispositif et support

Country Status (2)

Country Link
CN (1) CN111065120B (fr)
WO (1) WO2021128913A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20220046647A1 (en) * 2020-08-10 2022-02-10 International Business Machines Corporation Logical channel management in a communication system
WO2024060303A1 (fr) * 2022-09-23 2024-03-28 Apple Inc. Technologies de détection d'encombrement dans des réseaux sans fil

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111065120B (zh) * 2019-12-24 2022-02-11 展讯通信（上海）有限公司 蜂窝网络上行链路ecn机制的增强方法、设备及介质
CN113872726B (zh) * 2020-06-30 2023-03-03 华为技术有限公司 近场通信场景下调整发送速率的方法、装置及系统
CN116436862A (zh) * 2021-12-31 2023-07-14 华为技术有限公司 一种通信方法及通信装置
WO2024060302A1 (fr) * 2022-09-23 2024-03-28 Apple Inc. Technologies de signalisation de congestion dans des réseaux sans fil

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1405994A (zh) * 2002-11-08 2003-03-26 清华大学 Tp－s卫星信道专用传输协议及传输方法
CN101414957A (zh) * 2007-10-17 2009-04-22 北京中电华大电子设计有限责任公司 一种用于无线局域网的缓冲队列管理方法
CN101997644A (zh) * 2009-08-24 2011-03-30 华为技术有限公司 速率调整方法、系统、编码方式选择方法和装置
CN102104552A (zh) * 2011-04-02 2011-06-22 杭州华三通信技术有限公司 基于明确拥塞通知机制的报文控制方法及设备
CN111065120A (zh) * 2019-12-24 2020-04-24 展讯通信（上海）有限公司 蜂窝网络上行链路ecn机制的增强方法、设备及介质

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9584416B2 (en) * 2009-06-08 2017-02-28 Qualcomm Incorporated Systems and methods to provide flow control for mobile devices
US8923115B2 (en) * 2009-08-25 2014-12-30 Telefonaktiebolaget L M Ericsson (Publ) Using the ECN mechanism to signal congestion directly to the base station
US8693320B2 (en) * 2010-01-11 2014-04-08 Research In Motion Limited Congestion level indication with explicit congestion notification in communication systems
US9143457B2 (en) * 2010-10-06 2015-09-22 Qualcomm Incorporated Methods and apparatus for ECN receiver driven congestion control
US20130194937A1 (en) * 2012-01-31 2013-08-01 Alcatel-Lucent Usa Inc. Method and apparatus for providing intelligent codec rate adaptation for wireless users
KR20140118659A (ko) * 2013-03-29 2014-10-08 삼성전자주식회사 무선 통신 시스템에서 혼잡 제어 방법 및 장치
US10154431B2 (en) * 2016-09-27 2018-12-11 Verizon Patent And Licensing Inc. Congestion mitigation based on user device and base station condition information
CN108093433A (zh) * 2016-11-21 2018-05-29 中国移动通信有限公司研究院 无线网络拥塞处理方法及装置
CN108322402B (zh) * 2017-01-18 2022-05-10 华为技术有限公司 报文处理方法、设备及系统
CN107820274B (zh) * 2017-10-18 2021-04-06 中国联合网络通信集团有限公司 一种移动网络udp业务拥塞处理方法及基站
US11057904B2 (en) * 2017-12-06 2021-07-06 T-Mobile Usa, Inc. Prioritization of mobile terminating radio resource control connections
CN108965322B (zh) * 2018-08-14 2020-07-17 清华大学 空间网络传输控制协议

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1405994A (zh) * 2002-11-08 2003-03-26 清华大学 Tp－s卫星信道专用传输协议及传输方法
CN101414957A (zh) * 2007-10-17 2009-04-22 北京中电华大电子设计有限责任公司 一种用于无线局域网的缓冲队列管理方法
CN101997644A (zh) * 2009-08-24 2011-03-30 华为技术有限公司 速率调整方法、系统、编码方式选择方法和装置
CN102104552A (zh) * 2011-04-02 2011-06-22 杭州华三通信技术有限公司 基于明确拥塞通知机制的报文控制方法及设备
CN111065120A (zh) * 2019-12-24 2020-04-24 展讯通信（上海）有限公司 蜂窝网络上行链路ecn机制的增强方法、设备及介质

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
ERICSSON, NOKIA, NOKIA SHANGHAI BELL, VODAFONE: "Efficient support of ECN in NR,", 3GPP DRAFT; R2-1709469 - EFFICIENT SUPPORT OF ECN IN NR, vol. RAN WG2, 20 August 2017 (2017-08-20), Berlin, Germany, pages 1 - 17, XP051319198 *

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20220046647A1 (en) * 2020-08-10 2022-02-10 International Business Machines Corporation Logical channel management in a communication system
US11576181B2 (en) * 2020-08-10 2023-02-07 International Business Machines Corporation Logical channel management in a communication system
WO2024060303A1 (fr) * 2022-09-23 2024-03-28 Apple Inc. Technologies de détection d'encombrement dans des réseaux sans fil

Also Published As

Publication number Publication date
CN111065120B (zh) 2022-02-11
CN111065120A (zh) 2020-04-24

Similar Documents

Publication Publication Date Title
WO2021128913A1 (fr) Procédé d'amélioration de mécanisme ecn de liaison montante de réseau cellulaire, dispositif et support
US11133897B2 (en) Data transmission method and apparatus
EP3603322B1 (fr) Gestion de duplication de pdcp et de récupération de données dans une nouvelle technologie d'accès radio
US10771595B2 (en) Packet sending method and apparatus, chip, and terminal
US9900798B2 (en) Polling and reporting mechanism
US20210282050A1 (en) Efficient buffer management in multi-hops data forwarding
US10602400B2 (en) Enhancement of PDCP status report
WO2018028391A1 (fr) Procédé et appareil destinés à réaliser un traitement de retransmission
US11219091B2 (en) Data receiving status reporting method and apparatus
JP2007089176A (ja) 無線通信システムにおける送信側の再確立時に制御ｐｄｕを処理する方法及び装置
US20190223256A1 (en) Data transmission method, network device, and terminal device
US10932159B2 (en) Data transmission method, data receiving device, and data sending device
WO2020147453A1 (fr) Procédé de transmission de données et appareil associé
WO2021244176A1 (fr) Procédé de traitement de données de plan utilisateur et station de base
KR20140097610A (ko) 다중 무선 접속 기술 기반 통신 시스템에서의 무선 링크 제어 상태 보고 전송 방법 및 장치
WO2019101054A1 (fr) Procédé, dispositif et système de commande de taux d'agrégation
WO2014166053A1 (fr) Procede et terminal de communication
WO2019080906A1 (fr) Dispositif, procédé de transmission de données à base lwaap et support d'informations
WO2016161594A1 (fr) Procédé et appareil de transmission de données
WO2022057825A1 (fr) Procédé et appareil de configuration d'agrégation, et terminal
JP4896073B2 (ja) 無線通信システムにおいてデータ伝送状態をポーリングする方法及び装置
WO2022121876A1 (fr) Procédé et appareil de transmission de service de diffusion sélective et de diffusion non sélective dans un mode acquitté, dispositif, et support de stockage
WO2021233192A1 (fr) Procédé de rapport d'état de commande de liaison radio et appareil correspondant
WO2018202204A1 (fr) Procédé et dispositif de communication fondés sur des caractéristiques de flux de service réfléchissantes
KR20200097736A (ko) 무선 통신 방법 및 디바이스

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 20906724

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 20906724

Country of ref document: EP

Kind code of ref document: A1

122 Ep: pct application non-entry in european phase

Ref document number: 20906724

Country of ref document: EP

Kind code of ref document: A1