CN110932986A - Data packet distribution method and device and computer readable storage medium - Google Patents

Data packet distribution method and device and computer readable storage medium Download PDF

Info

Publication number
CN110932986A
CN110932986A CN201811099879.4A CN201811099879A CN110932986A CN 110932986 A CN110932986 A CN 110932986A CN 201811099879 A CN201811099879 A CN 201811099879A CN 110932986 A CN110932986 A CN 110932986A
Authority
CN
China
Prior art keywords
base station
data packet
service
type
shunting
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
CN201811099879.4A
Other languages
Chinese (zh)
Other versions
CN110932986B (en
Inventor
蒋峥
朱剑驰
陈鹏
杨峰义
毕奇
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
China Telecom Corp Ltd
Original Assignee
China Telecom Corp Ltd
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 China Telecom Corp Ltd filed Critical China Telecom Corp Ltd
Priority to CN201811099879.4A priority Critical patent/CN110932986B/en
Publication of CN110932986A publication Critical patent/CN110932986A/en
Application granted granted Critical
Publication of CN110932986B publication Critical patent/CN110932986B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L47/00—Traffic control in data switching networks
    • H04L47/10—Flow control; Congestion control
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L47/00—Traffic control in data switching networks
    • H04L47/10—Flow control; Congestion control
    • H04L47/34—Flow control; Congestion control ensuring sequence integrity, e.g. using sequence numbers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W80/00—Wireless network protocols or protocol adaptations to wireless operation
    • H04W80/02—Data link layer protocols

Landscapes

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

Abstract

The disclosure provides a data packet distribution method, a system, a device and a computer readable storage medium, and relates to the technical field of mobile communication. The data packet shunting method comprises the following steps: the service main base station sends the data packet shunting type supported by the service main base station and the suggested data packet shunting type to the service auxiliary base station; the service auxiliary base station selects a final data packet shunting type and sends the final data packet shunting type to the service main base station according to the data packet shunting type supported by the service main base station and the suggested data packet shunting type; the service main base station sends a shunting data packet to the service auxiliary base station, and configures a shunting level for receiving the shunting data packet by the terminal; and the service auxiliary base station sends the shunting data packet to the terminal. The method and the device realize negotiation of the data packet distribution type between the service main base station and the service auxiliary base station, and carry out data packet distribution based on the negotiated data packet distribution type, thereby carrying out service distribution on different services by adopting corresponding service distribution modes, and improving the service distribution efficiency among the base stations.

Description

Data packet distribution method and device and computer readable storage medium
Technical Field
The present disclosure relates to the field of multimedia technologies, and in particular, to a method and an apparatus for packet offloading, and a computer-readable storage medium.
Background
With the continuous development of mobile communication networks and the continuous increase of mobile data demand, mobile communication networks have become an indispensable part of people's daily work and life. From the beginning, a mobile network only bears data and is gradually changed into a network simultaneously bearing multiple services such as voice, data and the like, and the development of mobile phones, mobile terminals and internet of things also enables the mobile network to carry out various works through various applications. At the same time. Mobile networks have become an indispensable part of current social development, technological progress and improvement of quality of life of people, and become an infrastructure. In order to promote the society to continuously progress, a 5G network is built and provides high-quality communication guarantee for more services. In the future, 4G and 5G mobile communication networks may coexist for a long time, and provide multiple communication services for users together. In order to fully utilize 4G, 5G network resources, the 3GPP (3rd generation partnership Project) organization studies the network architecture for dual connectivity. In the dual-connection network architecture, user services can be transmitted through the 4G base station or the 5G base station, and can also be transmitted through the 4G base station and the 5G base station at the same time, so that the 4G network resources and the 5G network resources are fully utilized to serve the user.
However, in the current dual connectivity network architecture, the flow distribution between the 4G and 5G base stations is performed by using a PDCP (Packet data convergence Protocol) layer, that is, the primary base station (MCG, specifically, the 4G or 5G base station) transmits PDCP data packets to the secondary base station (SCG, specifically, the 4G or 5G base station) through an Xn or X2 interface for flow distribution.
Disclosure of Invention
The technical problem solved by the present disclosure is how to improve the traffic distribution efficiency between base stations.
According to an aspect of the embodiments of the present disclosure, a method for offloading data packets is provided, including: the service main base station sends the data packet shunting type supported by the service main base station and the suggested data packet shunting type to the service auxiliary base station; the service auxiliary base station selects a final data packet shunting type and sends the final data packet shunting type to the service main base station according to the data packet shunting type supported by the service main base station and the suggested data packet shunting type; the service main base station sends a shunting data packet to the service auxiliary base station, and configures a shunting level for receiving the shunting data packet by the terminal; and the service auxiliary base station sends the shunting data packet to the terminal.
In some embodiments, the selecting, by the service secondary base station, a final data packet offloading type according to the data packet offloading type supported by the service primary base station and the proposed data packet offloading type includes: if the service auxiliary base station supports the data packet shunting type suggested by the service main base station, the service auxiliary base station selects the data packet shunting type suggested by the service main base station as a final data packet shunting type; and if the service auxiliary base station does not support the data packet distribution type suggested by the service main base station, the service auxiliary base station selects other data packet distribution types from the data packet distribution types supported by the service main base station as the final data packet distribution type.
In some embodiments, the selecting, by the serving secondary base station, the other packet offload type from the packet offload types supported by the serving primary base station comprises: and the service auxiliary base station selects other data packet distribution types with the largest residual cache corresponding to the corresponding hierarchy of the service auxiliary base station from the data packet distribution types supported by the service main base station.
In some embodiments, the packet offloading method further includes: and the service main base station selects a data packet shunting type corresponding to the service type of the shunting data packet from the supported data packet shunting types as a suggested data packet shunting type.
In some embodiments, the packet offloading method further includes: the service auxiliary base station sends the final data packet shunting type corresponding to the corresponding hierarchy of the service auxiliary base station to the service main base station, and successfully transmits the shunting data packet sequence number and fails to transmit the shunting data packet sequence number; and the service main base station resends the distributed data packet corresponding to the distributed data packet sequence number with failed transmission to the terminal.
In some embodiments, the packet offloading method further includes: the service auxiliary base station sends the residual cache size of the corresponding level of the service auxiliary base station corresponding to the final data packet distribution type to the service main base station; and the service auxiliary base station sends the minimum buffer distributed for the distributed data packet in the corresponding level of the service auxiliary base station corresponding to the final data packet distribution type to the service main base station.
In some embodiments, the packet offload type includes: the PDCP layer of the service main base station is shunted to the RLC layer of the service auxiliary base station; the RLC layer of the service main base station is distributed to the MAC layer of the service auxiliary base station; and the MAC layer of the service main base station is distributed to the MAC layer of the service auxiliary base station.
According to another aspect of the embodiments of the present disclosure, there is provided a data packet offloading system, including a service primary base station and a service secondary base station, wherein the service primary base station is configured to send a data packet offloading type supported by the service primary base station and a suggested data packet offloading type to the service secondary base station; the service auxiliary base station is configured to select a final data packet distribution type and send the final data packet distribution type to the service main base station according to the data packet distribution type supported by the service main base station and the suggested data packet distribution type; the service main base station is also configured to send a shunting data packet to the service auxiliary base station and configure a shunting level of a terminal for receiving the shunting data packet; the service secondary base station is also configured to send the shunting data packet to the terminal.
In some embodiments, the serving secondary base station is configured to: if the data packet shunting type suggested by the service main base station is supported, selecting the data packet shunting type suggested by the service main base station as a final data packet shunting type; and if the data packet distribution type suggested by the service main base station is not supported, selecting other data packet distribution types from the data packet distribution types supported by the service main base station as the final data packet distribution type.
In some embodiments, the serving secondary base station is configured to: and if the data packet distribution type suggested by the service main base station is not supported, selecting other data packet distribution types with the largest residual caches of corresponding levels of the service auxiliary base station from the data packet distribution types supported by the service main base station.
In some embodiments, the traffic master base station is further configured to: and selecting a data packet distribution type corresponding to the service type of the distributed data packet from the supported data packet distribution types as a suggested data packet distribution type.
In some embodiments, the serving secondary base station is further configured to: sending the sequence number of the successfully transmitted distributed data packet and the sequence number of the unsuccessfully transmitted distributed data packet in the corresponding hierarchy of the service auxiliary base station corresponding to the final data packet distribution type to the service main base station; the traffic master base station is further configured to: and retransmitting the shunting data packet corresponding to the shunting data packet sequence number with the transmission failure to the terminal.
In some embodiments, the serving secondary base station is further configured to: sending the residual cache size of the corresponding level of the service auxiliary base station corresponding to the final data packet distribution type to the service main base station; and sending the minimum buffer distributed for the distributed data packets in the corresponding level of the service auxiliary base station corresponding to the final data packet distribution type to the service main base station.
In some embodiments, the packet offload type includes: the PDCP layer of the service main base station is shunted to the RLC layer of the service auxiliary base station; the RLC layer of the service main base station is distributed to the MAC layer of the service auxiliary base station; and the MAC layer of the service main base station is distributed to the MAC layer of the service auxiliary base station.
According to another aspect of the embodiments of the present disclosure, there is provided a packet offloading device, including: a memory; and a processor coupled to the memory, the processor configured to execute the aforementioned packet offloading method based on instructions stored in the memory.
According to still another aspect of the embodiments of the present disclosure, a computer-readable storage medium is provided, where the computer-readable storage medium stores computer instructions, and the instructions are executed by a processor to implement the foregoing data packet offloading method.
The method and the device realize negotiation of the data packet distribution type between the service main base station and the service auxiliary base station, and carry out data packet distribution based on the negotiated data packet distribution type, thereby carrying out service distribution on different services by adopting corresponding service distribution modes, and improving the service distribution efficiency among the base stations.
Other features of the present disclosure and advantages thereof will become apparent from the following detailed description of exemplary embodiments thereof, which proceeds with reference to the accompanying drawings.
Drawings
In order to more clearly illustrate the embodiments of the present disclosure or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, it is obvious that the drawings in the following description are only some embodiments of the present disclosure, and for those skilled in the art, other drawings can be obtained according to the drawings without inventive exercise.
Fig. 1 shows a schematic diagram of a system architecture for implementing a conventional packet offloading method.
Fig. 2 shows a flow chart of a data packet offloading method according to some embodiments of the present disclosure.
Fig. 3 is a flowchart illustrating a packet offloading method according to another embodiment of the disclosure.
Fig. 4 shows a schematic structural diagram of a packet offloading system according to some embodiments of the disclosure.
Fig. 5 shows a schematic structural diagram of a packet offloading device according to some embodiments of the present disclosure.
Detailed Description
The technical solutions in the embodiments of the present disclosure will be clearly and completely described below with reference to the drawings in the embodiments of the present disclosure, and it is obvious that the described embodiments are only a part of the embodiments of the present disclosure, and not all of the embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the disclosure, its application, or uses. All other embodiments, which can be derived by a person skilled in the art from the embodiments disclosed herein without making any creative effort, shall fall within the protection scope of the present disclosure.
Fig. 1 shows a schematic diagram of a system architecture for implementing a conventional packet offloading method. The inventor finds that the traditional data packet offloading method only supports one offloading type, and can only perform PDCP layer offloading on different services, that is, offloading from the PDCP layer of the service main base station to the RLC (Radio Link Control, Radio Link layer Control) layer of the service auxiliary base station. For the diversified services in the future network, the distribution efficiency is low, and the service guarantee capability is poor. For example, due to the lack of an automatic retransmission request mechanism in the PDCP layer, for services in an ultra-high reliable ultra-low latency communication scenario, the PDCP layer offloading has a lower offloading efficiency than the RLC layer offloading.
In view of the above problems, the present disclosure provides a new data offloading method for a mechanism that only supports PDCP layer offloading under the current dual-connection condition of a 4G/5G base station, so that the dual-connection base station can negotiate a data packet offloading type and perform data packet offloading based on the negotiated data packet offloading type, thereby performing service offloading for different services in a corresponding service offloading mode, and improving service offloading efficiency between base stations. As described in detail below.
The data packet offloading method of some embodiments of the present disclosure is first described with reference to fig. 2.
Fig. 2 shows a flow chart of a data packet offloading method according to some embodiments of the present disclosure. As shown in fig. 2, the present embodiment includes steps S200 to S208.
In step S200, the service master base station selects a data packet offloading type corresponding to the service type of the offloading data packet from the supported data packet offloading types as a suggested data packet offloading type.
The packet offload type may include, for example: the PDCP layer of the service main base station is shunted to the RLC layer of the service auxiliary base station; the RLC layer of the service main base station is distributed to an MAC (Media Access Control) layer of the service auxiliary base station; and the MAC layer of the service main base station is distributed to the MAC layer of the service auxiliary base station. If the QoS (Quality of Service) level corresponding to the Service type of the distributed data packet is higher, the Service main base station can select to distribute the RLC layer of the Service main base station to the MAC layer of the Service auxiliary base station; if the QoS (Quality of service) level corresponding to the service type of the split data packet is low, the service master base station may select the PDCP layer of the service master base station to split the data packet to the RLC layer of the service secondary base station.
In step S202, the service primary base station transmits the data packet offloading type supported by the service primary base station and the proposed data packet offloading type to the service secondary base station.
For example, the current bearer service of a New Radio (NR) service master base station gNB is a low-latency high-reliability service, and the gNB supports offloading of a PDCP layer and an RLC layer, and selectively offloads the RLC layer for the service according to the low-latency high-reliability service characteristics. Then, the gNB base station sends a SeNB Addition Request to an LTE (Long Term Evolution ) base station eNB through an Xn interface, where the signaling includes SCG Bearer (serving cell group Bearer controlled by the serving secondary base station) and/or Split Bearer (serving primary base station separate Bearer) information.
The following describes the setting of the SCG Bearer information. Table 1 shows the setting of the SCG Bearer information.
TABLE 1
Figure BDA0001806394560000061
As shown in table 1, an SCG Bearer Level operation item and an SCG Bearer Level prediction item are added to the SCG Bearer, the SCG Bearer Level operation item indicates a packet offloading type supported by the gNB base station, and if the content of the SCG Bearer Level operation item is the PDCP layer or the RLC layer, it indicates that the service is suitable for offloading through a PDCP layer or an RLC layer packet. The SCG Bearer Level reference item refers to a type of packet offloading proposed by the service main base station, for example, if the content of the SCG Bearer Level reference item is an RLC layer, it indicates that the service main base station proposes offloading through an RLC layer packet.
The setting case of the Split Bearer information is similar to that of the SCG Bearer information. Table 2 shows the setting of Split Bearer information.
TABLE 2
Figure BDA0001806394560000071
The present invention can also add a Split Bearer Level operation item and a Split Bearer Level prediction item to the Split Bearer, and the meanings of the two items are similar to the SCG Bearer Level operation item and the SCG Bearer Level prediction item, and respectively represent the packet offloading types supported by the gNB base station and the proposed packet offloading types. For example, the content of the Split Bearer Level reference indicates that the main base station proposes to bypass the RLC layer packet if the RLC layer is present. The difference between the Split modes of the Split Bearer and the SCG Bearer is as follows: the main service base station and the auxiliary service base station are shunted simultaneously, or the auxiliary service base station shunts itself.
In some embodiments, the service primary base station may further send the service type of the split data packet to the service secondary base station through the inter-base station interface.
In step S204, the service secondary base station selects a final data packet offloading type according to the data packet offloading type supported by the service primary base station and the proposed data packet offloading type, and sends the final data packet offloading type to the service primary base station.
In some embodiments, if the service secondary base station supports the data packet offloading type suggested by the service primary base station, the service secondary base station selects the data packet offloading type suggested by the service primary base station as a final data packet offloading type.
In some embodiments, if the service secondary base station does not support the data packet offloading type suggested by the service main base station, the service secondary base station selects another data packet offloading type from the data packet offloading types supported by the service main base station as a final data packet offloading type.
For example, after the serving secondary base station receives the SeNB Addition Request signaling sent by the serving primary base station, the SCG Bearer Level operation and the SCG Bearer Level reference are obtained. And the service auxiliary base station adds an SCG Bearer Level Indication item in the SgNBAddition Request acknowledgement message, and gives a final data packet distribution type selected by the service auxiliary base station through the SCGBearerevellndication. If the service auxiliary base station supports the SCG Bearer Level reference, the SCG Bearer Level Indication is the same as the SCG Bearer Level reference; and if the service auxiliary base station does not support the SCG Bearer Level reference, selecting a proper data packet distribution type according to the Indication of the SCG Bearer Level operation and the current load condition of the service auxiliary base station to distribute the data packet, and informing the service main base station through the SCG Bearer Level Indication. If the secondary base station does not support all the data packet distribution types indicated by the SCG Bearer Level Option, the service secondary base station should notify the service primary base station of rejecting distribution through the senbid Request message.
For another example, after the serving secondary base station receives the SeNB Addition Request signaling sent by the serving primary base station, a Split Bearer Level Option and a Split Bearer Level Preference are obtained. And the auxiliary base station adds a Split Bearer Level Indication item in the SgNBAddition Request acknowledgement message, and gives a final data packet distribution type selected by the service auxiliary base station through the Split Bearer Level Indication. If the service auxiliary base station supports the Split Bearer Level reference, the Split Bearer Level Indication is the same as the Split Bearer Level reference; and if the service auxiliary base station does not support the Split Bearer Level preference, selecting a proper data packet distribution type according to the Indication of the Split Bearer Level preference and the current load condition of the service auxiliary base station to distribute the data packet, and informing the service main base station through the Split Bearer Level Indication. If the service secondary base station does not support all the data packet distribution types indicated by the Split Bearer Level operation, the service secondary base station should notify the service host station of rejecting distribution by a SeNB Addition Request message.
In some embodiments, the service secondary base station selects another data packet offloading type with the largest remaining buffer memory corresponding to the corresponding hierarchy of the service secondary base station from the data packet offloading types supported by the service main base station.
For example, the data packet diversion type proposed by the service main base station is diverted from the RLC layer of the service main base station to the MAC layer of the service secondary base station, and the service secondary base station does not support the data packet diversion type proposed by the service main base station. Other packet offloading types supported by the service master base station include offloading from the PDCP layer of the service master base station to the RLC layer of the service secondary base station, and offloading from the MAC layer of the service master base station to the MAC layer of the service secondary base station. At this time, the service secondary base station compares the RLC layer residual buffer with the MAC layer residual buffer. And if the residual buffer of the RLC layer is larger, selecting the PDCP layer of the service main base station to shunt to the RLC layer of the service auxiliary base station.
In step S206, the service primary base station sends a split data packet to the service secondary base station, and configures a split level at which the terminal receives the split data packet.
For example, after the service master base station obtains the SCG Bearer Level Indication or the Split Bearer Level Indication, the service master base station configures the terminal to receive the Split Level of the Split data packet through the Radio Resource Configuration (RRC) in srb-ToAddModList in the Radio Resource Control (RRC) signaling.
In step S208, the service secondary base station sends the split data packet to the terminal.
The above embodiments provide a multi-level service offloading scheme between a service primary base station and a service secondary base station. The data packet distribution type can be negotiated through the service main base station and the service auxiliary base station, and the data packet distribution can be carried out based on the negotiated data packet distribution type, so that the service distribution is carried out on different services by adopting a corresponding service distribution mode, the service distribution efficiency among the base stations is improved, and the user service experience is improved.
Those skilled in the art will appreciate that the present disclosure is applicable to traffic offload between different access systems (e.g., LTE and NR) in 3GPP, as well as traffic offload between different base stations in the same access system.
The packet offloading method according to other embodiments of the present disclosure is described below with reference to fig. 3.
Fig. 3 is a flowchart illustrating a packet offloading method according to another embodiment of the disclosure. As shown in fig. 3, in addition to the embodiment shown in fig. 2, the present embodiment further includes steps S310 to S312.
In step S310, the service secondary base station sends the final data packet offloading type corresponding to the corresponding hierarchy of the service secondary base station to the service primary base station, where the successful offloading data packet sequence number and the unsuccessful offloading data packet sequence number are transmitted.
In step S312, the service master base station retransmits the split data packet corresponding to the split data packet sequence number that failed in transmission to the terminal.
The service auxiliary base station sends the sequence number of the shunt data packet with the transmission failure to the service main base station, and can inform the service main base station to resend the shunt data packet with the transmission failure to the terminal, so that the successful transmission of the data packet is ensured.
In some embodiments, the data packet offloading method further includes steps S314 to S316.
In step S314, the service secondary base station sends the remaining buffer size of the corresponding hierarchy of the service secondary base station corresponding to the final data packet offloading type to the service primary base station.
For example, if the final data packet shunting type is service main base station PDCP layer shunting, reporting service auxiliary base station RLC layer remaining buffer; and if the final data packet distribution type is service main base station RLC layer or MAC layer distribution, reporting the MAC layer cache residual of the service auxiliary base station.
In step S316, the service secondary base station sends, to the service primary base station, the minimum buffer allocated to the shunted data packet in the corresponding hierarchy of the service secondary base station corresponding to the final data packet shunting type.
In some embodiments, the service secondary base station may generate and send the offloading state signaling to the service primary bearer base station. For example, the service secondary base station reports the split state to the service primary base station through the DL Data Delivery Status message, and the modification of the DL Data Delivery Status message is shown in table 3. The auxiliary base station reports the auxiliary base station shunting state to the service main base station through the interface between the base stations, so that the service main base station can know the shunting state information.
TABLE 3
Figure BDA0001806394560000101
Figure BDA0001806394560000111
The packet offload system of some embodiments of the present disclosure is described below in conjunction with fig. 4.
Fig. 4 shows a schematic structural diagram of a packet offloading system according to some embodiments of the disclosure. As shown in fig. 4, the packet offloading system 40 in this embodiment includes a service main base station 402 and a service auxiliary base station 404. Wherein, the service master base station 402 is configured to send the data packet offloading type supported by the service master base station 402 and the suggested data packet offloading type to the service secondary base station 404; the service auxiliary base station 404 is configured to select a final data packet distribution type according to the data packet distribution type supported by the service main base station 402 and the proposed data packet distribution type, and send the final data packet distribution type to the service main base station 402; the service master base station 402 is further configured to send a split data packet to the service secondary base station 404, and configure a split level at which the terminal receives the split data packet; the serving secondary base station 404 is also configured to send the offload data packets to the terminal.
In some embodiments, the serving secondary base station 404 is configured to: if the data packet distribution type suggested by the service main base station 402 is supported, the data packet distribution type suggested by the service main base station 402 is selected as a final data packet distribution type; if the data packet offloading type suggested by the service master base station 402 is not supported, other data packet offloading types are selected from the data packet offloading types supported by the service master base station 402 as a final data packet offloading type.
In some embodiments, the serving secondary base station 404 is configured to: if the data packet offloading type suggested by the service master base station 402 is not supported, another data packet offloading type with the largest remaining buffer of the corresponding hierarchy of the service auxiliary base station 404 is selected from the data packet offloading types supported by the service master base station 402.
In some embodiments, traffic master base station 402 is further configured to: and selecting a data packet distribution type corresponding to the service type of the distributed data packet from the supported data packet distribution types as a suggested data packet distribution type.
The above embodiments provide a multi-level service offloading scheme between a service primary base station and a service secondary base station. The data packet distribution type can be negotiated through the service main base station and the service auxiliary base station, and the data packet distribution can be carried out based on the negotiated data packet distribution type, so that the service distribution is carried out on different services by adopting a corresponding service distribution mode, the service distribution efficiency among the base stations is improved, and the user service experience is improved.
In some embodiments, the serving secondary base station 404 is further configured to: sending a successful transmission sequence number of the distributed data packet and a failed transmission sequence number of the distributed data packet in a corresponding hierarchy of the service auxiliary base station 404 corresponding to the final data packet distribution type to the service main base station 402; the traffic master base station 402 is further configured to: and retransmitting the shunting data packet corresponding to the shunting data packet sequence number with the transmission failure to the terminal.
In some embodiments, the serving secondary base station 404 is further configured to: sending the remaining buffer size of the corresponding hierarchy of the service auxiliary base station 404 corresponding to the final data packet distribution type to the service main base station 402; and sending the minimum buffer allocated to the shunted data packet in the corresponding hierarchy of the service secondary base station 404 corresponding to the final data packet shunting type to the service primary base station 402.
In some embodiments, the packet offload type includes: the PDCP layer of the service main base station 402 shunts to the RLC layer of the service auxiliary base station 404; the RLC layer of the service main base station 402 is shunted to the MAC layer of the service auxiliary base station 404; is shunted by the MAC layer of the traffic master base station 402 to the MAC layer of the traffic secondary base station 404.
In some embodiments, the service primary station 402 includes a first tap adaptation unit 4022, and the service secondary station 404 includes a second tap adaptation unit 4042.
The first packet forwarding adaptation unit 4022 sends a corresponding packet to be forwarded (for example, PDCP layer, RLC layer, MAC layer packet) to the service secondary base station according to the packet forwarding type negotiated between the service primary base station and the service secondary base station, and adds a corresponding packet sequence number to the GTP-Uextension header message. The second flow distribution adapting unit 4042 receives the flow distribution data packet (e.g., PDCP layer, RLC layer, MAC layer data packet) sent by the service main base station and forwards the flow distribution data packet to the corresponding RLC layer or MAC layer.
Fig. 5 shows a schematic structural diagram of a packet offloading device according to some embodiments of the present disclosure. As shown in fig. 5, the packet demultiplexing device 50 of this embodiment includes: a memory 510 and a processor 520 coupled to the memory 510, the processor 520 being configured to perform the packet offloading method in any of the embodiments described above based on instructions stored in the memory 510.
Memory 510 may include, for example, system memory, fixed non-volatile storage media, and the like. The system memory stores, for example, an operating system, an application program, a Boot Loader (Boot Loader), and other programs. The packet offloading device 50 may further include an input/output interface 530, a network interface 540, a storage interface 550, and the like. These interfaces 530, 540, 550 and the connections between the memory 510 and the processor 520 may be, for example, via a bus 560. The input/output interface 530 provides a connection interface for input/output devices such as a display, a mouse, a keyboard, and a touch screen. The network interface 540 provides a connection interface for various networking devices. The storage interface 550 provides a connection interface for external storage devices such as an SD card and a usb disk.
The present disclosure also includes a computer readable storage medium having stored thereon computer instructions that, when executed by a processor, implement the packet offload method in any of the foregoing embodiments.
As will be appreciated by one skilled in the art, embodiments of the present disclosure may be provided as a method, system, or computer program product. Accordingly, the present disclosure may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present disclosure may take the form of a computer program product embodied on one or more computer-usable non-transitory storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
The present disclosure is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the disclosure. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
The above description is only exemplary of the present disclosure and is not intended to limit the present disclosure, so that any modification, equivalent replacement, or improvement made within the spirit and principle of the present disclosure should be included in the scope of the present disclosure.

Claims (16)

1. A data packet shunting method comprises the following steps:
the service main base station sends the data packet shunting type supported by the service main base station and the suggested data packet shunting type to the service auxiliary base station;
the service auxiliary base station selects a final data packet shunting type and sends the final data packet shunting type to the service main base station according to the data packet shunting type supported by the service main base station and the suggested data packet shunting type;
the service main base station sends a shunting data packet to the service auxiliary base station, and configures a shunting level for receiving the shunting data packet by the terminal;
and the service auxiliary base station sends the shunting data packet to the terminal.
2. The data packet offloading method of claim 1, wherein the selecting, by the service secondary base station, the final data packet offloading type according to the data packet offloading type supported by the service primary base station and the proposed data packet offloading type includes:
if the service auxiliary base station supports the data packet shunting type suggested by the service main base station, the service auxiliary base station selects the data packet shunting type suggested by the service main base station as a final data packet shunting type;
and if the service auxiliary base station does not support the data packet distribution type suggested by the service main base station, the service auxiliary base station selects other data packet distribution types from the data packet distribution types supported by the service main base station as the final data packet distribution type.
3. The data packet offloading method of claim 2, wherein the selecting, by the serving secondary base station, another data packet offloading type from the data packet offloading types supported by the serving primary base station comprises:
and the service auxiliary base station selects other data packet distribution types with the largest residual cache corresponding to the corresponding hierarchy of the service auxiliary base station from the data packet distribution types supported by the service main base station.
4. The data packet offloading method of claim 1, the data packet offloading method further comprising:
and the service main base station selects a data packet shunting type corresponding to the service type of the shunting data packet from the supported data packet shunting types as a suggested data packet shunting type.
5. The data packet offloading method of claim 1, the data packet offloading method further comprising:
the service auxiliary base station sends the final data packet shunting type corresponding to the corresponding hierarchy of the service auxiliary base station to the service main base station, and successfully transmits the shunting data packet sequence number and fails to transmit the shunting data packet sequence number;
and the service main base station resends the distributed data packet corresponding to the distributed data packet sequence number with failed transmission to the terminal.
6. The data packet offloading method of claim 1, the data packet offloading method further comprising:
the service auxiliary base station sends the residual cache size of the corresponding level of the service auxiliary base station corresponding to the final data packet distribution type to the service main base station;
and the service auxiliary base station sends the minimum buffer distributed for the distributed data packet in the corresponding level of the service auxiliary base station corresponding to the final data packet distribution type to the service main base station.
7. The data packet offloading method according to any one of claims 1 to 6, wherein the data packet offloading type includes:
the PDCP layer of the service main base station is shunted to the RLC layer of the service auxiliary base station;
the RLC layer of the service main base station is distributed to the MAC layer of the service auxiliary base station;
and the MAC layer of the service main base station is distributed to the MAC layer of the service auxiliary base station.
8. A data packet distribution system comprises a service main base station and a service auxiliary base station, wherein,
the service main base station is configured to send the data packet shunting type supported by the service main base station and the suggested data packet shunting type to the service auxiliary base station;
the service auxiliary base station is configured to select a final data packet distribution type and send the final data packet distribution type to the service main base station according to the data packet distribution type supported by the service main base station and the suggested data packet distribution type;
the service main base station is also configured to send a shunting data packet to the service auxiliary base station and configure a shunting level of a terminal for receiving the shunting data packet;
the service secondary base station is also configured to send the shunting data packet to the terminal.
9. The packet offloading system of claim 8, wherein the serving secondary base station is configured to:
if the data packet shunting type suggested by the service main base station is supported, selecting the data packet shunting type suggested by the service main base station as a final data packet shunting type;
and if the data packet distribution type suggested by the service main base station is not supported, selecting other data packet distribution types from the data packet distribution types supported by the service main base station as the final data packet distribution type.
10. The packet offloading system of claim 9, wherein the serving secondary base station is configured to: and if the data packet distribution type suggested by the service main base station is not supported, selecting other data packet distribution types with the largest residual caches of corresponding levels of the service auxiliary base station from the data packet distribution types supported by the service main base station.
11. The packet offloading system of claim 8, wherein the traffic master base station is further configured to: and selecting a data packet distribution type corresponding to the service type of the distributed data packet from the supported data packet distribution types as a suggested data packet distribution type.
12. The packet offload system of claim 8, wherein,
the serving secondary base station is further configured to: sending the sequence number of the successfully transmitted distributed data packet and the sequence number of the unsuccessfully transmitted distributed data packet in the corresponding hierarchy of the service auxiliary base station corresponding to the final data packet distribution type to the service main base station;
the traffic master base station is further configured to: and retransmitting the shunting data packet corresponding to the shunting data packet sequence number with the transmission failure to the terminal.
13. The packet offloading system of claim 8, wherein the serving secondary base station is further configured to:
sending the residual cache size of the corresponding level of the service auxiliary base station corresponding to the final data packet distribution type to the service main base station;
and sending the minimum buffer distributed for the distributed data packet in the corresponding level of the service auxiliary base station corresponding to the final data packet distribution type to the service main base station.
14. The packet offload system of any of claims 8 to 13, wherein the packet offload type comprises:
the PDCP layer of the service main base station is shunted to the RLC layer of the service auxiliary base station;
the RLC layer of the service main base station is distributed to the MAC layer of the service auxiliary base station;
and the MAC layer of the service main base station is distributed to the MAC layer of the service auxiliary base station.
15. A packet offloading device, comprising:
a memory; and
a processor coupled to the memory, the processor configured to perform the packet offload method of any of claims 1-7 based on instructions stored in the memory.
16. A computer-readable storage medium, wherein the computer-readable storage medium stores computer instructions which, when executed by a processor, implement the data packet offloading method according to any one of claims 1-7.
CN201811099879.4A 2018-09-20 2018-09-20 Data packet distribution method and device and computer readable storage medium Active CN110932986B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201811099879.4A CN110932986B (en) 2018-09-20 2018-09-20 Data packet distribution method and device and computer readable storage medium

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201811099879.4A CN110932986B (en) 2018-09-20 2018-09-20 Data packet distribution method and device and computer readable storage medium

Publications (2)

Publication Number Publication Date
CN110932986A true CN110932986A (en) 2020-03-27
CN110932986B CN110932986B (en) 2023-04-07

Family

ID=69856099

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201811099879.4A Active CN110932986B (en) 2018-09-20 2018-09-20 Data packet distribution method and device and computer readable storage medium

Country Status (1)

Country Link
CN (1) CN110932986B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113747496A (en) * 2020-05-29 2021-12-03 中国电信股份有限公司 Switching method, network equipment and system in multi-connection network

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100029276A1 (en) * 2006-10-02 2010-02-04 Posdata Co., Ltd. Method and apparatus for performing handover in wireless telecommunication system
CN102958102A (en) * 2011-08-22 2013-03-06 中兴通讯股份有限公司 RLC (radio link control) distribution transmission method and RLC distribution transmission system
CN104247547A (en) * 2012-04-20 2014-12-24 华为技术有限公司 Data streaming configuration method, base station system, and user terminal
CN104349385A (en) * 2013-07-26 2015-02-11 电信科学技术研究院 Data transmission method of shunt bearing scene and device thereof
CN104812003A (en) * 2014-01-28 2015-07-29 上海贝尔股份有限公司 Flow control method and device for master base station and secondary base station
CN104837127A (en) * 2014-02-08 2015-08-12 夏普株式会社 Communication method implemented by auxiliary base station and main base station, and corresponding base stations
WO2015145255A2 (en) * 2014-03-28 2015-10-01 Alcatel Lucent Method and apparatus for processing rlc/ pdcp entities at a user equipment in a dual connectivity system
CN106941733A (en) * 2016-01-04 2017-07-11 中兴通讯股份有限公司 Method for realizing reconfiguration in dual connection, main service base station and auxiliary service base station

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100029276A1 (en) * 2006-10-02 2010-02-04 Posdata Co., Ltd. Method and apparatus for performing handover in wireless telecommunication system
CN102958102A (en) * 2011-08-22 2013-03-06 中兴通讯股份有限公司 RLC (radio link control) distribution transmission method and RLC distribution transmission system
CN104247547A (en) * 2012-04-20 2014-12-24 华为技术有限公司 Data streaming configuration method, base station system, and user terminal
CN108337633A (en) * 2012-04-20 2018-07-27 华为技术有限公司 Data distribution configuration method, base station system and user terminal
CN104349385A (en) * 2013-07-26 2015-02-11 电信科学技术研究院 Data transmission method of shunt bearing scene and device thereof
CN104812003A (en) * 2014-01-28 2015-07-29 上海贝尔股份有限公司 Flow control method and device for master base station and secondary base station
CN104837127A (en) * 2014-02-08 2015-08-12 夏普株式会社 Communication method implemented by auxiliary base station and main base station, and corresponding base stations
WO2015145255A2 (en) * 2014-03-28 2015-10-01 Alcatel Lucent Method and apparatus for processing rlc/ pdcp entities at a user equipment in a dual connectivity system
CN106941733A (en) * 2016-01-04 2017-07-11 中兴通讯股份有限公司 Method for realizing reconfiguration in dual connection, main service base station and auxiliary service base station

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113747496A (en) * 2020-05-29 2021-12-03 中国电信股份有限公司 Switching method, network equipment and system in multi-connection network
CN113747496B (en) * 2020-05-29 2024-02-09 中国电信股份有限公司 Switching method, network equipment and system in multi-connection network

Also Published As

Publication number Publication date
CN110932986B (en) 2023-04-07

Similar Documents

Publication Publication Date Title
US10805849B2 (en) Handover method and apparatus
US11432297B2 (en) Method for improving service reliability, device, and system
US9380526B2 (en) Method, apparatus and computer program product for reducing outage probability for mobile devices
CN109151915B (en) Method, user equipment and base station for data packet delivery
CN108366391A (en) A kind of method that realizing data processing, network element and system
US12047915B2 (en) Control channel structure design to support V2X traffic
WO2019029643A1 (en) Communication method, base station, terminal device and system
CN109151940A (en) A kind of switching method and equipment based on DC
CN105704197A (en) Data transmission method and system
CN106464465A (en) Method and apparatus for improved multi-carrier communication
EP3654694A1 (en) Data transmission method and apparatus
EP2272211B1 (en) Handover based on prediction information from the target node
US11751096B2 (en) Congestion control method and device, and base station
CN108123777A (en) A kind of coding mode determines method and device
CN107634822B (en) HARQ-based transmission method and device
JP2023062188A (en) Communication control method, user equipment, processor, and base station
CN108632933B (en) Data transmission method and device and user equipment
CN102714823B (en) For the optimized allocation of resources of the wireless device under packet transfer mode
WO2012058823A1 (en) Resource scheduling among multiple radio access technologies
CN110636559B (en) QoS bearing capacity information reporting method, device and storage medium
CN110932986B (en) Data packet distribution method and device and computer readable storage medium
CN111093233B (en) Switching control method, device and base station
CN113873584B (en) Cell switching method and communication device
JP2024516491A (en) Video Call Continuity
CN108173829B (en) Video multicast method under high-load scene

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant