CN117560325A - Data sequential transfer method and system, network side equipment and application function entity - Google Patents

Data sequential transfer method and system, network side equipment and application function entity Download PDF

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Publication number
CN117560325A
CN117560325A CN202210926401.4A CN202210926401A CN117560325A CN 117560325 A CN117560325 A CN 117560325A CN 202210926401 A CN202210926401 A CN 202210926401A CN 117560325 A CN117560325 A CN 117560325A
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CN
China
Prior art keywords
network side
data
service
side equipment
data packet
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CN202210926401.4A
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Chinese (zh)
Inventor
聂衡
贾靖
夏旭
梅承力
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China Telecom Corp Ltd
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China Telecom Corp Ltd
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Application filed by China Telecom Corp Ltd filed Critical China Telecom Corp Ltd
Priority to CN202210926401.4A priority Critical patent/CN117560325A/en
Priority to PCT/CN2023/106577 priority patent/WO2024027466A1/en
Publication of CN117560325A publication Critical patent/CN117560325A/en
Pending legal-status Critical Current

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L47/00—Traffic control in data switching networks
    • H04L47/50—Queue scheduling
    • H04L47/62—Queue scheduling characterised by scheduling criteria
    • H04L47/622—Queue service order
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L47/00—Traffic control in data switching networks
    • H04L47/50—Queue scheduling
    • H04L47/62—Queue scheduling characterised by scheduling criteria
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W84/00—Network topologies
    • H04W84/02—Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
    • H04W84/04—Large scale networks; Deep hierarchical networks
    • H04W84/06—Airborne or Satellite Networks

Abstract

The disclosure relates to a data sequential transfer method and system, network side equipment and application functional entities. The data sequential transfer method comprises the following steps: the method comprises the steps that an application functional entity receives a sent satellite backhaul notification message, wherein the network side equipment sends the satellite backhaul notification message to the application functional entity under the condition that a base station accessed by current service adopts a satellite dynamic backhaul; the application functional entity judges whether the network side equipment realizes the data sequential transmission according to the service requirement and the service capability under the condition that the satellite return mode is a satellite dynamic return mode; under the condition that the network side equipment is judged to realize the data in-order delivery, the application functional entity requests the network side equipment to carry out the data packet in-order delivery on the data packets of the service. The network side device can execute the data packet in-order delivery processing according to the requirements of external applications.

Description

Data sequential transfer method and system, network side equipment and application function entity
Technical Field
The disclosure relates to the field of information communication, and in particular relates to a data sequential transmission method and system, network side equipment and application functional entities.
Background
In the scenario that the satellite backhaul of the base station of the 3GPP network adopts dynamic backhaul, the backhaul mode changes with the motion of the satellite, for example, inter-satellite handover, high-low orbit satellite handover, inter-satellite link handover, etc. The change of the backhaul manner may cause the data packets received by the receiving end (network side, terminal side, application server) to be out of order (the sequence is inconsistent with the sending end) at some time, so as to affect the specific service.
Disclosure of Invention
In view of at least one of the above technical problems, the present disclosure provides a data in-order delivery method and system, a network side device and an application function entity, where the network side may perform a data packet in-order delivery process according to requirements of an external application.
According to one aspect of the present disclosure, there is provided a data in-order delivery method including:
the method comprises the steps that an application functional entity receives a sent satellite backhaul notification message, wherein the network side equipment sends the satellite backhaul notification message to the application functional entity under the condition that a base station accessed by current service adopts a satellite dynamic backhaul;
the application functional entity judges whether the network side equipment realizes the data sequential transmission according to the service requirement and the service capability under the condition that the satellite return mode is a satellite dynamic return mode;
Under the condition that the network side equipment is judged to realize the data in-order delivery, the application functional entity requests the network side equipment to carry out the data packet in-order delivery on the data packets of the service.
In some embodiments of the present disclosure, the determining whether to implement data in-order delivery by the network side device according to the service requirement and the service capability includes:
judging whether the service data packet needs to be transmitted in sequence according to the service requirement;
under the condition that the service data packet needs to be transmitted in sequence, judging whether an application functional entity supports the transmission processing of the data packet in sequence;
under the condition that the application functional entity does not support the sequential transfer processing of the data packet, the network side equipment is judged to realize the sequential transfer of the data;
in the case that the application functional entity supports the in-order delivery processing of the data packet, it is determined that the in-order delivery of the data is realized by the application functional entity.
In some embodiments of the present disclosure, the data in-order delivery method further comprises:
under the condition that the application functional entity is judged to realize the data in-order delivery, the application functional entity sends a notice to the user terminal, and the user terminal and the application functional entity realize the data packet in-order delivery processing at an application layer.
In some embodiments of the present disclosure, the data in-order delivery method further comprises:
the application function entity subscribes a satellite backhaul mode of a user terminal session to the network side equipment according to service requirements, wherein the network side equipment sends a satellite backhaul mode notification message to the application function entity under the condition that the application function entity subscribes the satellite backhaul mode of the user terminal session and a base station accessed by current service adopts a satellite dynamic backhaul mode.
According to another aspect of the present disclosure, there is provided a data in-order transfer method including:
the network side equipment sends a satellite backhaul notification message to the application function entity when the base station accessed by the current service adopts a satellite dynamic backhaul mode, so that the application function entity judges whether the data is transferred in sequence by the network side equipment according to the service requirement and the service capability when the satellite backhaul mode is the satellite dynamic backhaul mode;
and the network side equipment transmits the data packet sequence transmission request to the network side equipment under the condition that the application functional entity judges that the network side equipment realizes the data sequence transmission.
In some embodiments of the present disclosure, the performing packet in-order delivery on the packets of the service includes:
the network side equipment generates a corresponding policy and a charging control policy;
and the network side equipment controls the user plane functional entity and informs the base station according to the strategy and the charging control strategy, and sequentially receives and processes the uplink service data packet and the downlink service data packet of the service data.
In some embodiments of the present disclosure, the data in-order delivery method further comprises:
the network side equipment sends an order processing condition indication to the charging functional entity, so that the charging functional entity and the charging system charge the service data packet which is subjected to the order receiving processing of the data packet through the network side equipment according to the order processing condition indication, wherein the order processing condition is that the network side equipment receives the uplink service data packet and the downlink service data packet of the service data in order.
According to another aspect of the present disclosure, there is provided an application function entity, comprising:
the notification message receiving module is configured to receive the sent satellite backhaul notification message, wherein the network side equipment sends the satellite backhaul notification message to the application function entity under the condition that the base station accessed by the current service adopts a satellite dynamic backhaul;
The judging module is configured to judge whether the network side equipment realizes the data sequential transmission according to the service requirement and the service capability under the condition that the satellite return mode is a satellite dynamic return mode;
the request module is configured to request the network side equipment to carry out data packet sequential delivery on the data packets of the service by the application function entity under the condition that the judging module judges that the network side equipment realizes the data sequential delivery.
In some embodiments of the present disclosure, the judging module is configured to judge whether the service data packet needs to be transferred in sequence according to the service requirement; under the condition that the service data packet needs to be transmitted in sequence, judging whether an application functional entity supports the transmission processing of the data packet in sequence; under the condition that the application functional entity does not support the sequential transfer processing of the data packet, the network side equipment is judged to realize the sequential transfer of the data; in the case that the application functional entity supports the in-order delivery processing of the data packet, it is determined that the in-order delivery of the data is realized by the application functional entity.
In some embodiments of the present disclosure, the application function entity further includes:
and the notification sending module is configured to send a notification to the user terminal under the condition that the application functional entity is judged to realize the data in-order delivery, and the user terminal and the application functional entity realize the in-order delivery processing of the data packet at an application layer.
In some embodiments of the present disclosure, the application function entity further includes:
the notification subscription module is configured to subscribe the satellite backhaul mode of the user terminal session to the network side equipment according to the service requirement, wherein the network side equipment sends a satellite backhaul mode notification message to the application function entity when the application function entity subscribes the satellite backhaul mode of the user terminal session and the base station to which the current service is accessed adopts the satellite dynamic backhaul mode;
according to another aspect of the present disclosure, there is provided a network side device, including:
the strategy control functional entity is configured to send a satellite backhaul notification message to the application functional entity when the base station accessed by the current service adopts a satellite dynamic backhaul mode, so that the application functional entity judges whether the data is sequentially transferred by the network side equipment according to the service requirement and the service capability when the satellite backhaul mode is the satellite dynamic backhaul mode; and carrying out data packet sequential transfer on the data packets of the service according to the sequential transfer request sent by the application functional entity, wherein the application functional entity sends the sequential transfer request to the network side equipment under the condition that the network side equipment is judged to realize data sequential transfer.
In some embodiments of the present disclosure, the network side device further includes:
the policy control function is further configured to generate a corresponding policy and charging control policy; generating the policy and charging control policy to a session management function entity;
and the session management function entity is configured to control the user plane function entity and inform the base station according to the policy and the charging control policy, and sequentially receive and process the uplink service data packet and the downlink service data packet of the service data.
In some embodiments of the present disclosure, the session management functional entity is configured to send an in-order processing condition indication to the charging functional entity, so that the charging functional entity and the charging system perform charging processing on a service data packet that is subjected to in-order receiving processing of a data packet by the network side device according to the in-order processing condition indication, where the in-order processing condition is a condition that the network side device performs in-order receiving processing on an uplink service data packet and a downlink service data packet of the service data.
According to another aspect of the present disclosure, there is provided a communication apparatus including:
a memory for storing instructions;
and a processor configured to execute the instructions, and cause the communication device to perform operations for implementing the data in-order delivery method according to any of the embodiments described above.
According to another aspect of the present disclosure, a data in-order delivery system is provided, including an application functional entity as described in any of the foregoing embodiments and a network side device as described in any of the foregoing embodiments.
According to another aspect of the present disclosure, there is provided a computer readable storage medium storing computer instructions which, when executed by a processor, implement a data in-order delivery method as in any of the embodiments described above.
The network side device can execute the data packet in-order delivery processing according to the requirements of external applications.
Drawings
In order to more clearly illustrate the embodiments of the present disclosure or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present disclosure, and other drawings may be obtained according to these drawings without inventive effort to a person of ordinary skill in the art.
FIG. 1 is a schematic diagram of some embodiments of a method of in-order delivery of data according to the present disclosure.
Fig. 2 is a schematic diagram of further embodiments of the data in-order delivery method of the present disclosure.
Fig. 3 is a schematic diagram of yet another embodiment of a method of in-order delivery of data according to the present disclosure.
Fig. 4 is a schematic diagram of some embodiments of the application functional entity of the present disclosure.
Fig. 5 is a schematic diagram of some embodiments of a network side device of the present disclosure.
Fig. 6 is a schematic diagram of some embodiments of a communication device of the present disclosure.
Fig. 7 is a schematic diagram of some embodiments of a data in-order delivery system of the present disclosure.
Detailed Description
The following description of the technical solutions in the embodiments of the present disclosure will be made clearly and completely with reference to the accompanying drawings in the embodiments of the present disclosure, and it is apparent that the described embodiments are only some embodiments of the present disclosure, not all 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. Based on the embodiments in this disclosure, all other embodiments that a person of ordinary skill in the art would obtain without making any inventive effort are within the scope of protection of this disclosure.
The relative arrangement of the components and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present disclosure unless it is specifically stated otherwise.
Meanwhile, it should be understood that the sizes of the respective parts shown in the drawings are not drawn in actual scale for convenience of description.
Techniques, methods, and apparatus known to one of ordinary skill in the relevant art may not be discussed in detail, but should be considered part of the specification where appropriate.
In all examples shown and discussed herein, any specific values should be construed as merely illustrative, and not a limitation. Thus, other examples of the exemplary embodiments may have different values.
It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further discussion thereof is necessary in subsequent figures.
The inventors found through research that: in the case of the base station transmitting back through the satellite, if the transmission dynamic change (for example, the satellite movement causes the transmission change), the related art causes the data packets received by the receiving end (network side, terminal side) to be out of order (the sequence is inconsistent with the transmitting end), which affects the specific service (for example, TCP, or the upper layer service). The external application in the related art does not know that the satellite backhaul is the dynamic backhaul, and cannot realize the flow of data packet in-order delivery based on the application requirement.
In view of at least one of the above technical problems, the present disclosure provides a method and a system for sequentially transferring data, a network side device and an application functional entity, and the following description of the present disclosure is made by specific embodiments.
FIG. 1 is a schematic diagram of some embodiments of a method of in-order delivery of data according to the present disclosure. Preferably, the present embodiment may be performed by the AF (Application function, application function entity) of the present disclosure or the data in-order delivery system of the present disclosure. The method may comprise at least one of step 11-step 13, wherein:
and step 11, the application functional entity receives the sent satellite backhaul notification message, wherein the network side equipment sends the satellite backhaul notification message to the application functional entity under the condition that the base station accessed by the current service adopts a satellite dynamic backhaul.
In some embodiments of the present disclosure, the application functionality entity may be implemented as an external application.
Step 12, the application functional entity judges whether the network side equipment realizes the data sequential transmission according to the service requirement and the service capability under the condition that the satellite backhaul mode is the satellite dynamic backhaul mode.
In some embodiments of the present disclosure, step 12 may include: the external application determines whether the service data is transmitted in sequence or not and whether the network side realizes the transmission in sequence or not based on the factors such as the backhaul mode, the service requirement and the like.
In some embodiments of the present disclosure, in step 12, the step of determining whether to implement data in-order delivery by the network side device according to the service requirement and the service capability may include: the external application judges whether the network side is needed to ensure the sequential delivery of the data packets or not based on the self business requirement, capacity and other factors (or directly realized by an application layer).
In some embodiments of the present disclosure, in step 12, the step of determining whether to implement data in-order delivery by the network side device according to the service requirement and the service capability may include at least one of steps 121 to 124, where:
step 121, judging whether the service data packet needs to be transferred in sequence according to the service requirement.
Step 122, in the case that the service data packet needs to be transferred in order, it is determined whether the application functional entity supports the data packet transfer processing in order.
Step 123, in the case that the application function entity itself does not support the in-order delivery processing of the data packet, it is determined that the in-order delivery of the data is implemented by the network side device.
In step 124, in the case that the application functional entity supports the in-order delivery processing of the data packet, it is determined that the in-order delivery of the data is implemented by the application functional entity.
In some embodiments of the present disclosure, step 12 may include: when the external application knows that the UE session is commonly used in a dynamic satellite backhaul mode, the external application judges whether the self service needs service data packets and cannot be disordered; if the data packets cannot be out of order, and the external application supports the in-order delivery processing of the data packets, the external application can inform the APP of the UE, and the in-order delivery processing of the data packets is realized through an application layer. A specific implementation is an internal mechanism between the external application and the APP.
Step 13, under the condition that the network side equipment is judged to realize data in-order delivery, the application functional entity requests the network side equipment to carry out data packet in-order delivery on the data packet of the service, then the network side equipment generates a corresponding PCC (Policy and Charging Control ) policy according to the request of external application, carries out in-order receiving processing (based on the data packet sequence number) of the data packet in uplink/downlink, and notifies the charging system of the condition that the data packet is subjected to in-order receiving processing.
In some embodiments of the present disclosure, step 13 may include: when the external application does not support the in-order delivery processing of the data packet, the external application can require the network side to realize the in-order delivery of the service data packet.
In some embodiments of the present disclosure, step 13 may include: the external application issues a request to the PCF for a description of the service data packet (PFD, packet flow description) and for the sequential processing of the data packets. At this time, the external application may also be issued to the PCF through the NEF (Network Exposure Function, network open function entity), depending on the connection mode of the external application and the mobile network.
In some embodiments of the present disclosure, the data in-order delivery method may further include: under the condition that the application functional entity is judged to realize the data in-order delivery, the application functional entity sends a notice to the user terminal, and the user terminal and the application functional entity realize the data packet in-order delivery processing at an application layer.
In some embodiments of the present disclosure, the data in-order delivery method may further include: if the external application decides to realize the data packet in-order delivery by the application layer, the external application and the terminal APP can realize the data packet in-order delivery by an internal mechanism.
In some embodiments of the present disclosure, the data in-order delivery method may further include: the application function entity subscribes a satellite backhaul mode of a UE (user terminal) session to the network side equipment according to service requirements, wherein the network side equipment sends a satellite backhaul mode notification message to the application function entity under the condition that the application function entity subscribes the satellite backhaul mode of the user terminal session and a base station accessed by the current service adopts a satellite dynamic backhaul mode.
In some embodiments of the present disclosure, the data in-order delivery method may further include: the external application subscribes a network equipment (PCF) to whether a dynamic satellite backhaul mode is adopted for the session of the UE based on service requirements; when the network side equipment knows that the satellite backhaul mode corresponding to the PDU (Protocol Data Unit ) session of the UE is a dynamic mode, the PCF (Policy Control Function, policy control function entity) notifies the external application that the PDU session adopts the dynamic satellite backhaul mode. At this time, the PCF may also notify the external application through the NEF, depending on the connection mode of the external application and the mobile network.
The above embodiments of the present disclosure provide a solution to the problem of data packet disorder in the related art, where a network side device may perform data packet in-order delivery processing according to requirements of an external application (application functional entity). The external application can determine whether to execute the data packet in-order delivery processing by the network side device according to the satellite backhaul mode carried by the service data packet and other various factors. Such a packet in-order delivery processing service provided by the network-side device for the external application may be charged.
Fig. 2 is a schematic diagram of further embodiments of the data in-order delivery method of the present disclosure. Preferably, the present embodiment may be executed by the network side device of the present disclosure or the data in-order delivery system of the present disclosure. The network side device of the present disclosure may include PCF and SMF (Session Management Function, session management function entity), and the method of the embodiment of fig. 2 may include at least one of steps 21-23, where:
step 21, the network side device sends a satellite backhaul notification message to the application functional entity when the base station to which the current service is accessed adopts a satellite dynamic backhaul, so that the application functional entity can judge whether to realize data sequential transmission by the network side device according to the service requirement and the service capability when the satellite backhaul is the satellite dynamic backhaul.
In some embodiments of the present disclosure, step 21 may be performed by the PCF.
In some embodiments of the present disclosure, step 21 may include: when the network side obtains that the satellite backhaul mode corresponding to the PDU session of the UE is a dynamic mode, the backhaul mode is notified to the external application based on the requirement of the external application.
In some embodiments of the present disclosure, step 21 may include: when the network side equipment obtains that the satellite backhaul mode corresponding to the PDU session of the UE is a dynamic mode, the satellite backhaul mode of the session is sent to an external application through a network capability open interface by the PCF.
Step 22, the network side device performs data packet sequential transmission on the data packet of the service according to the sequential transmission request sent by the application function entity, where the application function entity sends the sequential transmission request to the network side device when determining that the data sequential transmission is implemented by the network side device.
In some embodiments of the present disclosure, in step 22, the step of sequentially transferring the packets of the service may include steps 221 to 222, where:
in step 221, the network side device generates a corresponding policy and charging control policy.
In some embodiments of the present disclosure, step 221 may be performed by the PCF.
In some embodiments of the present disclosure, step 221 may include: after PCF receives the requirement of external application for orderly processing the data packet of the service, PCF generates a corresponding PCC strategy, wherein the PCC strategy comprises description (PFD) of the service data and realizes the orderly receiving and processing of uplink and downlink of the service data packet; the PCF issues a policy to the SMF.
Step 222, the network side device controls the user plane function entity and informs the base station according to the policy and charging control policy, and sequentially receives and processes the uplink service data packet and the downlink service data packet of the service data.
In some embodiments of the present disclosure, step 222 may be performed by the SMF.
In some embodiments of the present disclosure, step 222 may include: the SMF receives the PCC policy sent by the PCF, controls the UPF (User Plane Function, user plane function entity), and notifies the base station to sequentially receive and process the uplink and downlink service data packets of the service data. The service data may be data of the entire PDU session, or data of a specific QoS (Quality of Service ) FLOW within the PDU session corresponding to the PFD.
Step 23, the network side device sends an order processing condition indication to CHF (Charging Function, charging function entity), so that the charging function entity and the charging system perform charging processing on the service data packet which is subjected to the data packet order receiving processing by the network side device according to the order processing condition indication, wherein the order processing condition is that the network side device performs order receiving processing on the uplink service data packet and the downlink service data packet of the service data.
In some embodiments of the present disclosure, step 23 may be performed by the SMF.
In some embodiments of the present disclosure, step 23 may include: the SMF sends the uplink and downlink service packets of the service data to CHF in order. CHF and subsequent billing systems may perform independent billing processing on these service packets, which are processed by the network side for sequential reception of the packets, based on this information.
In some embodiments of the present disclosure, step 22 and step 23 may include: the network side equipment executes the sequential receiving processing of the service data according to the requirement of the external application on the sequential transmission of the service data, and notifies the charging network element of the situation.
In the satellite backhaul scenario of the related art 3GPP network, the external application is not supported to perform the sequential receiving processing of the data packet according to the backhaul situation, including the processing of the network side.
In the above embodiment of the present disclosure, the external application AF may determine, according to the backhaul situation obtained from the network side, to request the network side for the in-order receiving process or the application layer process of the data packet based on the service requirement. According to the embodiment of the disclosure, the network side device can perform data packet sequential receiving processing according to the requirement of the external application AF and notify the charging system.
Fig. 3 is a schematic diagram of yet another embodiment of a method of in-order delivery of data according to the present disclosure. Preferably, the present embodiment may be performed by a data in-order delivery system of the present disclosure. The method may comprise at least one of step 30-step 37, wherein:
in step 30, the external application (application function entity AF) subscribes to the session of the UE from the network side to adopt the satellite dynamic backhaul mode.
In step 31, when the UE establishes a PDU session, the PCF obtains the session using dynamic satellite backhaul.
In step 32, when the external application also subscribes to the satellite backhaul mode of the UE from the network side, the PCF notifies the external application AF of the session of the UE using dynamic satellite backhaul (at this time, the PCF may notify the AF of the session by the NEF, depending on the connection mode of the AF and the network). AF judges whether the data package of the service needs to be received and processed in sequence or not and whether the data package is realized by a network side or an application layer according to the dynamic satellite backhaul adopted by the session based on QoS requirement of the service and the capability of the service itself (if the APP and the AF support the sequential receiving and processing of the application layer).
Step 33 a-step 34a, if the AF decides to receive the processing in order by the application layer, the AF informs the UE's APP to process (via an internal mechanism between AF and UE APP).
Step 33 b-step 34b, if the AF decides to perform the sequential receiving process by the network side, the AF requests the PCF to perform the sequential receiving process on the uplink and downlink service data (at this time, the AF may also request the PCF through the NEF, depending on the connection mode of the AF and the network).
Step 35, the pcf receives the request of 4b, and notifies the SMF to use a new PCC policy for the service data packet, where the PCC policy is to implement uplink and downlink sequential receiving processing for the service data packet.
Step 36, the smf controls the UPF and notifies the base station to perform sequential receiving processing on the uplink and downlink service data packets, where the UPF and the base station can process according to the sequence number of the GTP-U data packet of the service.
In step 37, the smf notifies CHF that the uplink and downlink data packets of the PDU session or flow corresponding to the service are sequentially accepted. CHF and billing systems may conduct specialized billing based on this information
The above embodiments of the present disclosure provide a method for controlling sequential delivery of data. According to the above embodiment of the present disclosure, when the satellite backhaul manner connected by the base station is dynamic, the service data stream may be sequentially received and processed according to the specific service requirement, so as to ensure the service quality of the service. And the above embodiments of the present disclosure may process services in order as a new billing dimension depending on such traffic data flows provided by the network.
The above embodiments of the present disclosure apply a satellite backhaul manner that requires obtaining service data; and judging whether to adopt data packet sequential transmission processing according to factors such as service requirements, a return mode and the like.
The network side of the above embodiment of the present disclosure needs to perform the data packet in-order delivery processing according to the service requirement. Such in-order delivery of packets provided by the network side for the application of the above-described embodiments of the present disclosure may be used for billing.
Fig. 4 is a schematic diagram of some embodiments of the application functional entity of the present disclosure. As shown in fig. 4, the application functional entity of the present disclosure may include a notification message receiving module 41, a judging module 42, and a requesting module 43, where:
the notification message receiving module 41 is configured to receive the sent satellite backhaul notification message, where the network side device sends the satellite backhaul notification message to the application functional entity when the base station to which the current service is accessed adopts a satellite dynamic backhaul.
The judging module 42 is configured to judge whether the network side device realizes the data sequential transmission according to the service requirement and the service capability in the case that the satellite backhaul mode is the satellite dynamic backhaul mode.
The request module 43 is configured to request, by the application functional entity, the network side device to perform packet in-order delivery on the data packet of the service if the judging module judges that the network side device performs the data in-order delivery.
In some embodiments of the present disclosure, the determining module 43 may be configured to determine whether the service data packet needs to be delivered in order according to the service requirement; under the condition that the service data packet needs to be transmitted in sequence, judging whether an application functional entity supports the transmission processing of the data packet in sequence; under the condition that the application functional entity does not support the sequential transfer processing of the data packet, the network side equipment is judged to realize the sequential transfer of the data; in the case that the application functional entity supports the in-order delivery processing of the data packet, it is determined that the in-order delivery of the data is realized by the application functional entity.
In some embodiments of the present disclosure, as shown in fig. 4, the application functional entity may further include a notification sending module 44, where:
the notification sending module 44 is configured to send a notification to the user terminal, and the user terminal and the application functional entity implement in-order delivery processing of the data packet at the application layer, in the case where the judging module judges that the in-order delivery of the data is implemented by the application functional entity.
In some embodiments of the present disclosure, the application function entity may further include a notification subscription module 45, wherein:
the notification subscription module 45 is configured to subscribe the network side device to the satellite backhaul mode of the user terminal session according to the service requirement, where the network side device sends a satellite backhaul mode notification message to the application function entity when the application function entity subscribes to the satellite backhaul mode of the user terminal session and the base station to which the current service is accessed adopts the satellite dynamic backhaul mode;
fig. 5 is a schematic diagram of some embodiments of a network side device of the present disclosure. As shown in fig. 5, the network side device of the present disclosure may include a Policy Control Function (PCF) 51, wherein:
the policy control function entity 51 is configured to send a satellite backhaul notification message to the application function entity when the base station to which the current service is accessed adopts a satellite dynamic backhaul, so that the application function entity can determine whether to implement data sequential transfer by the network side device according to the service requirement and the service capability when the satellite backhaul is the satellite dynamic backhaul; and carrying out data packet sequential transfer on the data packets of the service according to the sequential transfer request sent by the application functional entity, wherein the application functional entity sends the sequential transfer request to the network side equipment under the condition that the network side equipment is judged to realize data sequential transfer.
Fig. 3 also provides a schematic diagram of other embodiments of the network side device of the present disclosure. As shown in fig. 3 and 5, the network side device may further include at least one entity of a Session Management Function (SMF) 52, a charging function (CHF) 53, a User Plane Function (UPF) 54, and a network opening function (NEF) 55, wherein:
policy control function 51 is further configured to generate a corresponding policy and charging control policy; generating the policy and charging control policy to a session management function entity;
the session management function 52 is configured to control the user plane function 54 and notify the base station to receive and process the uplink and downlink traffic packets of the traffic data in sequence according to the policy and charging control policy.
In some embodiments of the present disclosure, the session management function 52 is configured to send an in-order handling situation indication to the charging function 53.
In some embodiments of the present disclosure, the charging function entity 53 and the charging system are configured to perform charging processing on the service data packet that is subjected to the data packet sequence receiving processing by the network side device according to the sequence processing condition indication, where the sequence processing condition is a condition that the network side device performs the sequence receiving processing on the uplink service data packet and the downlink service data packet of the service data.
In some embodiments of the present disclosure, the PCF may also be configured to notify the external application of the satellite backhaul mode through a network open function (NEF) 55 in case the base station of the current service access is in the satellite dynamic backhaul mode. The specific PCF informs directly, or through the NEF, depending on the external application and the connection mode of the mobile network.
In some embodiments of the present disclosure, the external application may also send the description of the traffic packet (PFD, packet flow description) and the requirement for the packet to be processed in order to the PCF via the network open function entity (NEF) 55. The specific external application sends directly or through the NEF, depending on the way the external application and the mobile network are connected.
In some embodiments of the present disclosure, the network-side device may be implemented as a mobile network or a communication network.
Fig. 6 is a schematic diagram of some embodiments of a communication device of the present disclosure. As shown in fig. 6, the communication device includes a memory 61 and a processor 62.
The memory 61 is for storing instructions and the processor 62 is coupled to the memory 61, the processor 62 being configured to implement a data in-order delivery method as described in any of the embodiments above (e.g. any of fig. 1-3) based on the instructions stored by the memory.
In some embodiments of the present disclosure, the processor 62 is configured to perform the data in-order delivery method implementing the embodiment of fig. 1, and in the case of performing steps 33a, 34a, 33b, 34 of the embodiment of fig. 3, the communication device of the present disclosure may be implemented as an application functional entity of the present disclosure.
In some embodiments of the present disclosure, the processor 62 is configured to perform the data in-order delivery method implementing the embodiment of fig. 2, and in the case of performing steps 30, 31, 35-37 of the embodiment of fig. 3, the communication device of the present disclosure may be implemented as a network-side device of the present disclosure.
As shown in fig. 6, the communication device further comprises a communication interface 63 for information interaction with other devices. Meanwhile, the communication device further includes a bus 64, and the processor 62, the communication interface 63, and the memory 61 perform communication with each other through the bus 64.
The memory 61 may comprise a high-speed RAM memory or may further comprise a non-volatile memory (non-volatile memory), such as at least one disk memory. The memory 61 may also be a memory array. The memory 61 may also be partitioned and the blocks may be combined into virtual volumes according to certain rules.
Further, the processor 62 may be a central processing unit CPU, or may be an application specific integrated circuit ASIC, or one or more integrated circuits configured to implement embodiments of the present disclosure.
Fig. 7 is a schematic diagram of some embodiments of a data in-order delivery system of the present disclosure. Fig. 3 also presents a schematic view of other embodiments of the data in-line delivery system of the present disclosure. As shown in fig. 3 and 7, the data in-order delivery system of the present disclosure may include a network side device 50, an application function entity (AF) 40, a base station 60, and a user terminal (UE) 70, wherein:
the network-side device 50 may be implemented as a network-side device according to any of the embodiments described above (e.g., the embodiment of fig. 5).
The application function entity (AF) 40 may be implemented as an application function entity as described in any of the embodiments described above (e.g. the embodiment of fig. 4).
The above embodiments of the present disclosure may be applied to the field of wireless communication and terminal, sky-ground integration. The above embodiments of the present disclosure may belong to 6G network architecture and key technologies.
According to the embodiment of the disclosure, the network side equipment can inform the external application of the situation according to the adoption of satellite dynamic backhaul of the current access base station. The external application (application functional entity) can determine whether the network side is needed to guarantee the sequential delivery of the data packets based on its own service requirements and capabilities (or directly implemented by the application layer). The network side device may perform in-order reception processing of the data packet (based on the data packet sequence number) in the uplink/downlink according to the in-order delivery of such PCC policy requirements, and notify the charging system.
According to another aspect of the disclosure, there is provided a computer readable storage medium storing computer instructions which, when executed by a processor, implement a data in-order delivery method as described in any of the embodiments above (e.g., any of fig. 1-3).
In some embodiments of the present disclosure, the computer-readable storage medium may be a non-transitory computer-readable storage medium.
The main advantages of the above examples of the present disclosure compared to the related art are:
1. in the related art, the external application AF cannot know whether the service data stream is carried on the dynamic satellite backhaul, so that it cannot be determined whether the data packet needs to be subjected to sequential receiving processing. The embodiment of the disclosure realizes the situation that the external application obtains the backhaul bearer of the service, and how to decide to adopt the sequential acceptance process, and the network side equipment performs the full-process opening of the service data packet sequential and the like according to the external service requirement.
2. The above examples of the disclosure make a decision by the application side whether to enable packet in-order delivery based on the situation of the backhaul employed by the application packet.
3. The above example of the disclosure adds the new function of data packet in-order delivery in the PCC policy, and the SMF controls the user plane network element (UPF, base station) to perform the data packet in-order receiving process based on the policy.
4. The SMF of the above example of the present disclosure notifies CHF that the CHF packet is received in sequence, and the billing system may perform billing.
5. According to the embodiment of the disclosure, when the satellite backhaul mode of the base station connection is dynamic, the service data stream can be sequentially received and processed according to the specific service requirement, so that the service quality of the service is ensured. And the above examples of the present disclosure can be used as a new billing dimension by sequentially processing services according to such traffic data flows provided by the network.
It will be apparent to those skilled in the art that embodiments of the present disclosure may be provided as a method, apparatus, 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, etc.) 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 flowchart illustrations and/or block diagrams, and combinations of flows and/or blocks in the flowchart illustrations 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 communication device, network side device, application function entity, base station, user terminal, access and mobility management function entity, session management function entity, policy control function entity, charging function entity, user plane function entity, network opening function entity, notification subscription module, notification transmission module, message receiving module, determination module, and request module described above may be implemented as a general purpose processor, programmable Logic Controller (PLC), digital Signal Processor (DSP), application Specific Integrated Circuit (ASIC), field Programmable Gate Array (FPGA) or other programmable logic device, discrete gate or transistor logic device, discrete hardware components, or any suitable combination thereof for performing the functions described herein.
Thus far, the present disclosure has been described in detail. In order to avoid obscuring the concepts of the present disclosure, some details known in the art are not described. How to implement the solutions disclosed herein will be fully apparent to those skilled in the art from the above description.
Those of ordinary skill in the art will appreciate that all or a portion of the steps implementing the above embodiments may be implemented by hardware, or may be implemented by a program indicating that the relevant hardware is implemented, where the program may be stored on a non-transitory computer readable storage medium, where the storage medium may be a read-only memory, a magnetic disk or optical disk, etc.
The description of the present disclosure has been presented for purposes of illustration and description, and is not intended to be exhaustive or limited to the disclosure in the form disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments were chosen and described in order to best explain the principles of the disclosure and the practical application, and to enable others of ordinary skill in the art to understand the disclosure for various embodiments with various modifications as are suited to the particular use contemplated.

Claims (17)

1. A method of data transfer in sequence, comprising:
The method comprises the steps that an application functional entity receives a sent satellite backhaul notification message, wherein the network side equipment sends the satellite backhaul notification message to the application functional entity under the condition that a base station accessed by current service adopts a satellite dynamic backhaul;
the application functional entity judges whether the network side equipment realizes the data sequential transmission according to the service requirement and the service capability under the condition that the satellite return mode is a satellite dynamic return mode;
under the condition that the network side equipment is judged to realize the data in-order delivery, the application functional entity requests the network side equipment to carry out the data packet in-order delivery on the data packets of the service.
2. The method for in-order data transfer according to claim 1, wherein said determining whether to implement in-order data transfer by the network side device according to the service requirement and the service capability comprises:
judging whether the service data packet needs to be transmitted in sequence according to the service requirement;
under the condition that the service data packet needs to be transmitted in sequence, judging whether an application functional entity supports the transmission processing of the data packet in sequence;
under the condition that the application functional entity does not support the sequential transfer processing of the data packet, the network side equipment is judged to realize the sequential transfer of the data;
In the case that the application functional entity supports the in-order delivery processing of the data packet, it is determined that the in-order delivery of the data is realized by the application functional entity.
3. The data in-order delivery method of claim 2, further comprising:
under the condition that the application functional entity is judged to realize the data in-order delivery, the application functional entity sends a notice to the user terminal, and the user terminal and the application functional entity realize the data packet in-order delivery processing at an application layer.
4. A method of in-order delivery of data according to any of claims 1-3, further comprising:
the application function entity subscribes a satellite backhaul mode of a user terminal session to the network side equipment according to service requirements, wherein the network side equipment sends a satellite backhaul mode notification message to the application function entity under the condition that the application function entity subscribes the satellite backhaul mode of the user terminal session and a base station accessed by current service adopts a satellite dynamic backhaul mode.
5. A method of data transfer in sequence, comprising:
the network side equipment sends a satellite backhaul notification message to the application function entity when the base station accessed by the current service adopts a satellite dynamic backhaul mode, so that the application function entity judges whether the data is transferred in sequence by the network side equipment according to the service requirement and the service capability when the satellite backhaul mode is the satellite dynamic backhaul mode;
And the network side equipment transmits the data packet sequence transmission request to the network side equipment under the condition that the application functional entity judges that the network side equipment realizes the data sequence transmission.
6. The method for in-order delivery of data according to claim 5, wherein said in-order delivery of packets of a service comprises:
the network side equipment generates a corresponding policy and a charging control policy;
and the network side equipment controls the user plane functional entity and informs the base station according to the strategy and the charging control strategy, and sequentially receives and processes the uplink service data packet and the downlink service data packet of the service data.
7. The data in-order delivery method of claim 5 or 6, further comprising:
the network side equipment sends an order processing condition indication to the charging functional entity, so that the charging functional entity and the charging system charge the service data packet which is subjected to the order receiving processing of the data packet through the network side equipment according to the order processing condition indication, wherein the order processing condition is that the network side equipment receives the uplink service data packet and the downlink service data packet of the service data in order.
8. An application function entity, comprising:
the notification message receiving module is configured to receive the sent satellite backhaul notification message, wherein the network side equipment sends the satellite backhaul notification message to the application function entity under the condition that the base station accessed by the current service adopts a satellite dynamic backhaul;
the judging module is configured to judge whether the network side equipment realizes the data sequential transmission according to the service requirement and the service capability under the condition that the satellite return mode is a satellite dynamic return mode;
the request module is configured to request the network side equipment to carry out data packet sequential delivery on the data packets of the service by the application function entity under the condition that the judging module judges that the network side equipment realizes the data sequential delivery.
9. The application function entity of claim 8, wherein:
the judging module is configured to judge whether the service data packet needs to be transmitted in sequence according to the service requirement; under the condition that the service data packet needs to be transmitted in sequence, judging whether an application functional entity supports the transmission processing of the data packet in sequence; under the condition that the application functional entity does not support the sequential transfer processing of the data packet, the network side equipment is judged to realize the sequential transfer of the data; in the case that the application functional entity supports the in-order delivery processing of the data packet, it is determined that the in-order delivery of the data is realized by the application functional entity.
10. The application functionality of claim 9, further comprising:
and the notification sending module is configured to send a notification to the user terminal under the condition that the application functional entity is judged to realize the data in-order delivery, and the user terminal and the application functional entity realize the in-order delivery processing of the data packet at an application layer.
11. The application functionality of any of claims 8-10, further comprising:
the notification subscription module is configured to subscribe the satellite backhaul mode of the user terminal session to the network side equipment according to the service requirement, wherein the network side equipment sends a satellite backhaul mode notification message to the application function entity under the condition that the application function entity subscribes the satellite backhaul mode of the user terminal session and the base station to which the current service is accessed adopts the satellite dynamic backhaul mode.
12. A network side device, comprising:
the strategy control functional entity is configured to send a satellite backhaul notification message to the application functional entity when the base station accessed by the current service adopts a satellite dynamic backhaul mode, so that the application functional entity judges whether the data is sequentially transferred by the network side equipment according to the service requirement and the service capability when the satellite backhaul mode is the satellite dynamic backhaul mode; and carrying out data packet sequential transfer on the data packets of the service according to the sequential transfer request sent by the application functional entity, wherein the application functional entity sends the sequential transfer request to the network side equipment under the condition that the network side equipment is judged to realize data sequential transfer.
13. The network-side device of claim 12, further comprising:
the policy control function is further configured to generate a corresponding policy and charging control policy; generating the policy and charging control policy to a session management function entity;
and the session management function entity is configured to control the user plane function entity and inform the base station according to the policy and the charging control policy, and sequentially receive and process the uplink service data packet and the downlink service data packet of the service data.
14. The network-side device of claim 13, wherein:
the session management functional entity is configured to send an order processing condition indication to the charging functional entity, so that the charging functional entity and the charging system perform charging processing on the service data packet which is subjected to the data packet order receiving processing by the network side equipment according to the order processing condition indication, wherein the order processing condition is that the network side equipment performs order receiving processing on the uplink service data packet and the downlink service data packet of the service data.
15. A communication device, comprising:
a memory for storing instructions;
a processor for executing the instructions to cause the communication device to perform operations implementing the data in-order delivery method of any of claims 1-7.
16. A data in-order delivery system comprising an application function entity according to any of claims 8-11 and a network side device according to any of claims 12-14.
17. A computer readable storage medium storing computer instructions which, when executed by a processor, implement a data in-order delivery method as claimed in any one of claims 1 to 7.
CN202210926401.4A 2022-08-03 2022-08-03 Data sequential transfer method and system, network side equipment and application function entity Pending CN117560325A (en)

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