CN118102500A

CN118102500A - Data transmission method, device, electronic equipment and computer readable storage medium

Info

Publication number: CN118102500A
Application number: CN202211438455.2A
Authority: CN
Inventors: 刘玉冰; 刘海; 龙彪
Original assignee: China Telecom Corp Ltd
Current assignee: China Telecom Corp Ltd
Priority date: 2022-11-16
Filing date: 2022-11-16
Publication date: 2024-05-28

Abstract

The disclosure provides a data transmission method, a data transmission device, electronic equipment and a computer readable storage medium, and relates to the technical field of communication. The method is applied to UPF network elements and comprises the following steps: under the condition of transmitting data to User Equipment (UE) based on a complete redundancy transmission mode, acquiring a first delay value representing a delay state of the complete redundancy transmission; determining a first magnitude relation between the first delay value and a first delay threshold; switching the full redundancy transmission to a first non-redundancy transmission under the condition that the first size relation is that the first delay value is larger than a first delay threshold value, and transmitting data to the UE in a mode based on the first non-redundancy transmission; wherein the first non-redundant transmission occupies less network resources than the fully redundant transmission. Under the condition that the first delay value is larger than the delay difference threshold, switching the complete redundant transmission into the first non-redundant transmission, avoiding the waste of network resources and improving the utilization rate of the network resources.

Description

Data transmission method, device, electronic equipment and computer readable storage medium

Technical Field

The present disclosure relates to the field of communications technologies, and in particular, to a data transmission method, a data transmission device, an electronic device, and a computer readable storage medium.

Background

In the field of communication technology, a redundant transmission mode is generally adopted in a multi-access PDU (Protocol Data Unit ) session to improve the reliability of data transmission. The redundant transmission refers to a transmission mode of transmitting the same data packet to the receiving end by using two transmission paths, wherein the receiving end uses the data packet which arrives at the receiving end as an effective data packet among the same data packet transmitted by the two transmission paths, and uses the effective data packet for subsequent processing.

The transmission mode of redundant transmission needs to occupy more network resources, and the transmission of data by the redundant transmission mode is easy to cause the waste of network resources.

It should be noted that the information disclosed in the above background section is only for enhancing understanding of the background of the present disclosure and thus may include information that does not constitute prior art known to those of ordinary skill in the art.

Disclosure of Invention

The present disclosure provides a data transmission method, apparatus, electronic device, and computer readable storage medium, which overcome, at least to some extent, the problem of network resource waste in the related art.

Other features and advantages of the present disclosure will be apparent from the following detailed description, or may be learned in part by the practice of the disclosure.

According to one aspect of the present disclosure, there is provided a data transmission method applied to a user plane function UPF network element, including: under the condition of transmitting data to User Equipment (UE) based on a complete redundancy transmission mode, acquiring a first delay value representing a delay state of the complete redundancy transmission; determining a first magnitude relation between the first delay value and a first delay threshold; switching full redundancy transmission to first non-redundancy transmission under the condition that the first size relation is that the first time delay value is larger than the first time delay threshold value, and transmitting data to the UE in a mode based on the first non-redundancy transmission; wherein the first non-redundant transmission occupies less network resources than the fully redundant transmission.

In one embodiment of the present disclosure, the first delay value includes: the first delay jitter value, the second delay jitter value and the delay difference value; the time delay difference value is determined according to the time delay of the first path and the second path for complete redundancy transmission in a first reference time length; the first delay jitter value is determined according to the delay jitter of the first path in the first reference time length; the second delay jitter value is determined according to the delay jitter of the second path in the first reference time length; the determining a first magnitude relation between the first delay value and a first delay threshold value includes: determining the magnitude relation among the first delay jitter value, the second delay jitter value, the delay difference value and the first delay threshold value respectively; and under the condition that the first delay jitter value, the second delay jitter value and the delay difference value are all larger than the first delay threshold value, the first magnitude relation is that the first delay value is larger than the first delay threshold value.

In one embodiment of the present disclosure, further comprising: and receiving an N4 rule sent by a session management function SMF network element, wherein the N4 rule carries the first delay threshold.

In one embodiment of the present disclosure, further comprising: and if the first size relation is that the first time delay value is larger than the first time delay threshold value, sending a Performance Management Function (PMF) message to the UE so as to instruct the UE to switch the mode of transmitting data from full redundancy transmission to the first non-redundancy transmission.

In one embodiment of the present disclosure, further comprising: receiving an N4 rule sent by an SMF network element, wherein the N4 rule carries a second delay threshold; entering a complete redundant transmission pre-starting state according to the N4 rule; acquiring a second delay value representing a delay state of a second non-redundant transmission under the condition that the UPF network element is in a fully redundant transmission pre-starting state and data is transmitted to the UE in a second non-redundant transmission mode; determining a second magnitude relationship between the second delay value and the second delay threshold; and switching the second non-redundant transmission to the full-redundant transmission under the condition that the second size relation is that the second time delay value is larger than the second time delay threshold value, and transmitting data to the UE based on the full-redundant transmission.

In one embodiment of the present disclosure, the second delay value is determined according to a delay of a third path within a second reference time period, the third path being a transmission path for the second non-redundant transmission.

According to another aspect of the present disclosure, there is provided a data transmission method applied to a PCF network element of a policy control function, including: acquiring a target threshold, wherein the target threshold comprises a first delay threshold; generating a Policy and Charging Control (PCC) rule carrying the target threshold; and sending the PCC rule to a Session Management Function (SMF) network element so that the SMF network element generates and sends an N4 rule carrying the target threshold value to a UPF network element, and generates and sends ATSSS rules to User Equipment (UE), wherein the N4 rule and the ATSSS rule are respectively used for indicating the UPF network element and the UE to perform data transmission based on a complete redundancy transmission mode.

In one embodiment of the present disclosure, the target threshold further includes a second delay threshold, and the ATSSS rule carries the second delay threshold; and the second delay threshold is used for indicating the UE to switch the second non-redundant transmission to the full redundant transmission under the condition that the UE is in a full redundant transmission pre-starting state and the second delay value of the used second non-redundant transmission is larger than the second delay threshold, so that data can be conveniently transmitted to the UPF network element based on the full redundant transmission mode.

In one embodiment of the present disclosure, the acquiring the target threshold includes: acquiring the first delay threshold and the second delay threshold from a unified data warehouse function UDR; or receiving a first update message sent by an application function AF, wherein the first update message carries the first delay threshold value and the second delay threshold value; or acquiring the first delay threshold from the UDR; receiving a second update message sent by the AF, wherein the second update message carries the second time delay threshold; or obtaining the second time delay threshold value from the UDR; and receiving a third update message sent by the AF, wherein the third update message carries the first delay threshold value.

According to still another aspect of the present disclosure, there is provided a data transmission apparatus applied to a user plane function UPF network element, including: the first acquisition module is used for acquiring a first delay value representing a delay state of the full redundancy transmission under the condition that data is transmitted to the User Equipment (UE) based on the full redundancy transmission mode; a determining module, configured to determine a first magnitude relation between the first delay value and a first delay threshold; a switching module, configured to switch, when the first size relationship is that the first delay value is greater than the first delay threshold, full-redundancy transmission to first non-redundancy transmission, so as to transmit data to the UE based on the first non-redundancy transmission; wherein the first non-redundant transmission occupies less network resources than the fully redundant transmission.

In one embodiment of the present disclosure, the first delay value includes: the first delay jitter value, the second delay jitter value and the delay difference value; the time delay difference value is determined according to the time delay of the first path and the second path for complete redundancy transmission in a first reference time length; the first delay jitter value is determined according to the delay jitter of the first path in the first reference time length; the second delay jitter value is determined according to the delay jitter of the second path in the first reference time length; the determining module is used for determining the magnitude relation among the first delay jitter value, the second delay jitter value, the delay difference value and the first delay threshold value respectively; and under the condition that the first delay jitter value, the second delay jitter value and the delay difference value are all larger than the first delay threshold value, the first magnitude relation is that the first delay value is larger than the first delay threshold value.

In one embodiment of the present disclosure, the apparatus further comprises: and the receiving module is used for receiving an N4 rule sent by the session management function SMF network element, wherein the N4 rule carries the first delay threshold value.

In one embodiment of the present disclosure, the apparatus further comprises: and the first sending module is used for sending a Performance Management Function (PMF) message to the UE to instruct the UE to switch the data transmission mode from the full redundancy transmission mode to the first non-redundancy transmission mode when the first size relation is that the first time delay value is larger than the first time delay threshold value.

In one embodiment of the disclosure, the receiving module is further configured to receive an N4 rule sent by the SMF network element, where the N4 rule carries a second delay threshold; the switching module is further used for entering a complete redundancy transmission pre-starting state according to the N4 rule; the first obtaining module is further configured to obtain a second delay value that indicates a delay state of the second non-redundant transmission when the UPF network element is in a fully redundant transmission pre-on state and data is transmitted to the UE by means of the second non-redundant transmission; the determining module is further configured to determine a second magnitude relation between the second delay value and the second delay threshold; and the switching module is further configured to switch the second non-redundant transmission to a full-redundant transmission, so as to transmit data to the UE based on the full-redundant transmission, if the second magnitude relation is that the second delay value is greater than the second delay threshold.

According to still another aspect of the present disclosure, there is provided a data transmission apparatus applied to a PCF network element of a policy control function, including: the second acquisition module is used for acquiring a target threshold value, wherein the target threshold value comprises a first delay threshold value; a generation module, configured to generate a policy and charging control PCC rule carrying the target threshold; and the second sending module is used for sending the PCC rule to a session management function SMF network element so that the SMF network element generates and sends an N4 rule carrying the target threshold value to a UPF network element, and generates and sends ATSSS rules to User Equipment (UE), wherein the N4 rule and the ATSSS rule are respectively used for indicating the UPF network element and the UE to perform data transmission based on a complete redundancy transmission mode.

In one embodiment of the disclosure, the second obtaining module is configured to obtain the first latency threshold and the second latency threshold from a unified data warehouse function UDR; or receiving a first update message sent by an application function AF, wherein the first update message carries the first delay threshold value and the second delay threshold value; or acquiring the first delay threshold from the UDR; receiving a second update message sent by the AF, wherein the second update message carries the second time delay threshold; or obtaining the second time delay threshold value from the UDR; and receiving a third update message sent by the AF, wherein the third update message carries the first delay threshold value.

According to still another aspect of the present disclosure, there is provided an electronic apparatus including: a processor; and a memory for storing executable instructions of the processor; wherein the processor is configured to perform any of the data transmission methods described above via execution of the executable instructions.

According to yet another aspect of the present disclosure, there is provided a computer-readable storage medium having stored thereon a computer program which, when executed by a processor, implements any of the above described data transmission methods.

According to yet another aspect of the present disclosure, there is provided a computer program product comprising a computer program or computer instructions loaded and executed by a processor to cause a computer to implement any of the data transmission methods described above.

The technical scheme provided by the embodiment of the disclosure at least comprises the following beneficial effects:

according to the technical scheme provided by the embodiment of the disclosure, under the condition that the UPF network element transmits data to the UE in a full redundancy transmission mode, a first delay value representing a delay state of the full redundancy transmission is monitored, and when the delay of the full redundancy transmission is determined to be large (the first delay value is larger than a first delay threshold), the low delay effect obtained by the full redundancy transmission can be considered to be poor, and then the effect obtained by the full redundancy transmission is considered to be not matched with occupied network resources. Under the condition that the first time delay value is larger than the first time delay threshold value, the complete redundant transmission is switched to the first non-redundant transmission, the UPF network element transmits data to the UE in the mode of the first non-redundant transmission, network resource waste caused by mismatching of the effect obtained by the complete redundant transmission and occupied resources is avoided, and the utilization rate of the network resource is improved.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the disclosure and together with the description, serve to explain the principles of the disclosure. It will be apparent to those of ordinary skill in the art that the drawings in the following description are merely examples of the disclosure and that other drawings may be derived from them without undue effort.

Fig. 1 shows a schematic configuration diagram of a data transmission system in one embodiment of the present disclosure;

fig. 2 is a schematic diagram illustrating a structure of a data transmission system in another embodiment of the present disclosure;

FIG. 3 illustrates a flow chart of a data transmission method of one embodiment of the present disclosure;

Fig. 4 illustrates a flowchart of a UPF network element switching a second non-redundant transmission to a fully redundant transmission in one embodiment of the present disclosure;

fig. 5 shows a flow chart of a data transmission method of another embodiment of the present disclosure;

fig. 6 shows a flow chart of a data transmission method of another embodiment of the present disclosure;

FIG. 7 shows a schematic diagram of a data transmission device in one embodiment of the present disclosure;

fig. 8 shows a schematic diagram of a data transmission device in another embodiment of the present disclosure;

Fig. 9 shows a block diagram of an electronic device in an embodiment of the disclosure.

Detailed Description

Example embodiments will now be described more fully with reference to the accompanying drawings. However, the exemplary embodiments may be embodied in many forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of the example embodiments to those skilled in the art. The described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.

Furthermore, the drawings are merely schematic illustrations of the present disclosure and are not necessarily drawn to scale. The same reference numerals in the drawings denote the same or similar parts, and thus a repetitive description thereof will be omitted. Some of the block diagrams shown in the figures are functional entities and do not necessarily correspond to physically or logically separate entities. These functional entities may be implemented in software or in one or more hardware modules or integrated circuits or in different networks and/or processor devices and/or microcontroller devices.

It should be understood that the various steps recited in the method embodiments of the present disclosure may be performed in a different order and/or performed in parallel. Furthermore, method embodiments may include additional steps and/or omit performing the illustrated steps. The scope of the present disclosure is not limited in this respect.

It should be noted that the terms "first," "second," and the like in this disclosure are merely used to distinguish between different devices, modules, or units and are not used to define an order or interdependence of functions performed by the devices, modules, or units.

It should be noted that references to "one", "a plurality" and "a plurality" in this disclosure are intended to be illustrative rather than limiting, and those of ordinary skill in the art will appreciate that "one or more" is intended to be understood as "one or more" unless the context clearly indicates otherwise.

In the technical field of communication, video data has the characteristics of large data volume and high transmission instantaneity requirement, and the total rate of transmitting video data can be accelerated through a plurality of PDU sessions in a multi-access PDU session so as to meet the requirement of ensuring the instantaneity of data transmission under the condition of transmitting a large number. The data packets transmitted by the plurality of PDU sessions are rearranged at the receiving end based on the RTP protocol (Real-time Transport Protocol ), which is a Real-time protocol and has high sensitivity to time delay and jitter in the process of transmitting data. In the multi-access PDU session scenario, the delay and jitter of each data transmission path of each PDU session can have a large impact on the rearrangement of the data packets.

In addition, the video data also has the characteristic of packet loss sensitivity, and the packet loss rate of the transmitted data can be effectively reduced by transmitting the video data based on a redundant transmission mode. However, the redundant transmission is based on two transmission paths (3 GPP path (3 rd Generation Partnership Project, third generation partnership project) and non-3 GPP path), in the scene of transmitting data in multi-access PDU session, the transmission path for transmitting data is increased based on the mode of redundant transmission, so that the receiving end is more sensitive to the delay and jitter of the transmission path for reordering the data packet. And the transmission mode of the redundant transmission ensures the transmission reliability and low time delay by adding the transmission path, and increases the network resources occupied when transmitting data, and the low time delay effect obtained by the redundant transmission is not matched with the occupied network resources under the condition of larger time delay of the transmission path, so that the transmission mode of the redundant transmission is considered to cause the waste of the network resources.

In this regard, the embodiment of the disclosure provides a data transmission method, which can avoid waste of network resources and improve the utilization rate of the network resources under the condition that a receiving end provides guarantee for rearrangement of data packets.

The following explains terms related to embodiments of the present disclosure:

full redundant transmission: hundred percent redundant transmission, namely the data packets transmitted in two paths of redundant transmission are identical;

Non-redundant transmission: other transmission modes besides the redundant transmission, such as the lowest delay transmission or other transmission modes, the network resources occupied by the non-redundant transmission are smaller than those occupied by the redundant transmission;

First non-redundant transmission: a transmission model in non-redundant transmission;

Second non-redundant transmission: one transmission model in the non-redundant transmission, the second non-redundant transmission can be the same transmission model as the first non-redundant transmission, and can also be a different transmission mode;

N4 rule: a rule sent by the SMF network element (Session Management Function ) to the UPF network element (User Plane Function, user plane function) for instructing the UPF network element to perform downlink data transmission based on a transmission mode indicated by the N4 rule;

Fig. 1 is a schematic diagram illustrating a data transmission system in one embodiment of the present disclosure, to which the data transmission method or the data transmission apparatus in various embodiments of the present disclosure may be applied.

As shown in fig. 1, the data transmission system architecture may include: PCF (Policy Control function, policy and control function) network element 11, SMF network element 12, AMF (ACCESS AND Mobility Management Function ) network element 13, UPF network element 14, and UE (User Equipment) 15.

The PCF network element 11 may generate and send PCC rules (Policy AND CHARGING Control ) to the SMF network element 12, the SMF network element 12 may generate an N4 rule to be sent to the UPF network element 14 according to the received PCC rules, and generate a ATSSS rule to be sent to the AMF network element 13 (ACCESS TRAFFIC STEERING, switching, splitting, access traffic steering, switching, splitting), and the AMF network element 13 may forward ATSSS the rules to the UE 15.

The UPF network element 14 may perform downlink data transmission based on a fully redundant transmission mode according to the indication of the N4 rule. The UPF network element 14 may further monitor the time delay between two transmission paths of the full redundancy transmission and the time delay jitter of the two paths, and switch the full redundancy transmission to the non-redundancy transmission, and perform the downlink data transmission by using the non-redundancy transmission method when determining that the time delay difference between the two transmission paths and the time delay jitter of the two paths are larger. In addition, the UPF network element 14 may further send a PMF message to the UE 15 (Performance Management Function ), after the UE 15 receives the PMF message, switch the full redundancy transmission indicated by ATSSS to the non-redundancy transmission indicated by the PMF message, and then perform uplink data transmission based on the non-redundancy transmission.

In one embodiment, the PCC rule and the N4 rule carry a first delay threshold, and the UPF network element 14 determines whether the delay of the full redundancy transmission is greater according to the first delay threshold carried by N4, where the delay of the full redundancy transmission is greater than the first delay threshold, and considers that the delay of the full redundancy transmission is greater, and conversely, considers that the delay of the full redundancy transmission is smaller where the delay of the full redundancy transmission is not greater than the first delay threshold.

In another embodiment, the PCC rule, the N4 rule, and the ATSSS rule each carry a second delay threshold, where the N4 rule and the ATSSS rule are used to instruct the UPF network element 14 and the UE15 to enter a fully redundant transmission pre-start state, perform data transmission in the state based on a non-redundant transmission mode, and switch the non-redundant transmission to the fully redundant transmission by the UPF network element 14 and the UE15 when the second delay value of the non-redundant transmission is monitored to be greater than the second delay threshold.

In another embodiment, the UPF network element 14 has a first latency threshold and a second latency threshold stored therein.

As shown in fig. 2, a schematic structural diagram of a data transmission system according to another embodiment of the present disclosure, the data transmission system architecture includes: PCF network element 11, SMF network element 12, AMF network element 13, UPF network element 14, UE 15, and AF (Application Function ) 16.

The AF 16 may sign up with an application program in the UE 15, so that the AF may acquire target data generated by the application program in the UE 15, the AF 16 may update the first delay threshold in real time according to the target data, send the updated first delay threshold to the PCF network element 11, and after the PCF network element 11 receives the updated first delay threshold, update the first delay threshold to the UPF network element 14. The UPF network element 14 determines whether the delay of the full redundancy transmission is greater according to the updated first delay threshold.

The PCF network element 11, the SMF network element 12, the AMF network element 13, the UPF network element 14, the UE 15 and the AF 16 implement communication connection through a network, and the network may be a wired network or a wireless network.

Alternatively, the wireless network or wired network described above uses standard communication techniques and/or protocols. The network is typically the Internet, but may be any network including, but not limited to, a local area network (Local Area Network, LAN), metropolitan area network (Metropolitan Area Network, MAN), wide area network (Wide Area Network, WAN), mobile, wired or wireless network, private network, or any combination of virtual private networks. In some embodiments, data exchanged over the network is represented using techniques and/or formats including HyperText Mark-up Language (HTML), extensible markup Language (Extensible MarkupLanguage, XML), and the like. All or some of the links may also be encrypted using conventional encryption techniques such as secure sockets layer (Secure Socket Layer, SSL), transport layer security (Transport Layer Security, TLS), virtual private network (Virtual Private Network, VPN), internet protocol security (Internet ProtocolSecurity, IPsec), etc. In other embodiments, custom and/or dedicated data communication techniques may also be used in place of or in addition to the data communication techniques described above.

The UE 15 may be a variety of electronic devices including, but not limited to, a smart phone, a tablet, a laptop portable computer, a desktop computer, a wearable device, an augmented reality device, a virtual reality device, and the like. The embodiments of the present disclosure are not limited with respect to the number of applications installed in the UE 15.

The present exemplary embodiment will be described in detail below with reference to the accompanying drawings and examples.

Embodiments of the present disclosure provide a data transmission method, which may be performed by any electronic device having computing processing capabilities. For example, the electronic device is a UPF network element.

Fig. 3 illustrates a flow chart of a data transmission method in one embodiment of the present disclosure, and as illustrated in fig. 3, the data transmission method provided in the embodiment of the present disclosure may include S301 to S303.

S301, the UPF network element obtains a first delay value indicating a delay state of the full redundancy transmission when transmitting data to the UE based on the full redundancy transmission.

Wherein the first delay value is used to represent a delay state of the fully redundant transmission when transmitting data. The first delay value can reflect the transmission effect achieved by the fully redundant transmission on the low delay. The larger the first delay value, the poorer the transmission effect achieved by the fully redundant transmission on the low delay.

In one embodiment, the first delay value includes: the first delay jitter value, the second delay jitter value, and the delay difference value. The delay difference value is determined according to the delay of the first path and the second path for complete redundancy transmission in a first reference time length; the first delay jitter value is determined according to the delay jitter of the first path in a first reference time length; the second delay jitter value is determined based on the delay jitter of the second path over the first reference time period. The first reference time period is a set value, and regarding to what value the first reference time period is, embodiments of the present disclosure are not limited, and may be empirically set. For example, the first reference time period is 10ms (milliseconds), or 100ms, or 1s (seconds), or 10s.

The first path and the second path correspond to a 3GPP path and a non-3 GPP path, and if the first path is the 3GPP path, the second path is the non-3 GPP path; if the first path is a non-3 GPP path, the second path is a 3GPP path.

The embodiments of the present disclosure are not limited in terms of how the first delay jitter value is determined based on the delay jitter of the first path over the first reference duration. For example, the first delay jitter value is an average value of delay jitter of the first path for a first reference period of time; for another example, the first delay jitter value is a sum of delay jitter of the first path over a first reference period of time; for another example, the first delay jitter value is obtained by summing delay jitter of the first path in the first reference duration, and performing mathematical calculation, which is not limited in terms of the specific calculation of the mathematical calculation, for example, the mathematical calculation may be a scaling process, i.e. a scaling factor or a scaling factor. In an embodiment, the second delay value is determined in the same manner as the first delay value, which is not described herein.

Embodiments of the present disclosure are not limited in how the delay difference is determined based on the delays of the first path and the second path within the first reference time period. In one embodiment, the delay difference is an average of the delay differences of the first path and the second path over a first reference period. In another embodiment, the delay difference is a sum of delay differences of the first path and the second path over a first reference time period. In another embodiment, the delay difference is a value obtained by performing a mathematical calculation on the sum of the delay differences of the first path and the second path in the first reference period, and the embodiment of the disclosure is not limited with respect to the specific calculation of the mathematical calculation, for example, the mathematical calculation may be a scaling process.

In the case where the first delay value includes a first delay jitter value, a second delay jitter value, and a delay difference value, obtaining the first delay value representing a delay state of the full redundancy transmission may include: and acquiring a first delay jitter value, a second delay jitter value and a delay difference value.

The embodiments of the present disclosure are not limited with respect to how the UPF network element obtains the first delay jitter value and the second delay jitter value. In one embodiment, the UPF network element may monitor delay jitter in the first path and the second path of the fully redundant transmission and may be capable of recording delay jitter of the first path and the second path over a period of time and processing the recorded delay jitter.

Taking the first delay jitter value and the second delay jitter value as examples, where the average value of the delay jitter values of the first path and the second path is in the first reference duration, the obtaining, by the UPF network element, the first delay jitter value and the second delay jitter value may include: the UPF network element acquires the time delay jitter between the monitored first path and the monitored second path from the first time point to the second time point, wherein the second time point is the time point when the UPF network element executes the acquisition action, and the first time point is the time point before the reference duration of the second time point. After the time delay jitter of the first path and the second path between the first time point and the second time point is obtained, the average value of the time delay jitter of the first path and the second path between the first time point and the second time point is calculated respectively, and a first time delay jitter value and a second time delay jitter value are obtained.

The embodiments of the present disclosure are not limited in terms of how the UPF network element obtains the delay difference. In one embodiment, the UPF network element may send a probe message to the UE using the first path and the second path, and determine delays of the first path and the second path according to a time when a response message fed back by the UE through the first path and the second path is received. The UPF network element may record a plurality of delays of the first path and the second path measured using the probe message within a first reference duration, and then determine a delay difference between the first path and the second path according to the plurality of delays.

Taking the delay difference as an average value of the delay differences of the first path and the second path in the first reference duration as an example, the obtaining the delay difference by the UPF network element may include: the UPF network element obtains a plurality of first time delays and a plurality of second time delays measured from a first time point to a second time point from a plurality of stored first time delays of a first path and a plurality of second time delays of a second path; then, calculating the difference value between each first time delay and the corresponding second time delay to obtain a plurality of difference values; and calculating an average value according to the plurality of difference values to obtain the time delay difference value.

It should be noted that, the manners of determining the delay difference value according to the delay of the first path and the second path in the first reference time period, determining the first delay jitter value according to the delay jitter of the first path in the first reference time period, and determining the second delay jitter value according to the delay jitter of the second path in the first reference time period are the same.

S302, the UPF network element determines a first magnitude relation between a first time delay value and a first time delay threshold value.

After the UPF network element obtains a first delay value representing the delay state of the complete redundant transmission, the first delay value is compared with a time first delay threshold value, and a first magnitude relation between the first delay value and the first delay threshold value is obtained. If the first size relationship is that the first delay value is greater than the first delay threshold, the transmission effect obtained by the full redundancy transmission on the low delay is considered to be not matched with the occupied network resource, that is, the transmission effect obtained by the full redundancy transmission on the low delay is considered to be poor. If the first size relation is that the first delay value is not greater than the first delay threshold, the transmission effect obtained by the full redundancy transmission on the low delay is considered to be matched with the occupied network resource, that is, the transmission effect obtained by the full redundancy transmission on the low delay is considered to be better.

In some embodiments, the first latency threshold is configured in a UPF network element. In another embodiment, the UPF network element obtains the first latency threshold from the N4 rule, that is, the UPF network element receives the N4 rule sent by the SMF network element, where the N4 rule carries the first latency threshold.

With respect to the specific value of the first latency threshold, embodiments of the present disclosure are not limited. In some embodiments, the specific size of the first delay threshold may be determined empirically and based on the manner in which the first delay value is calculated. In one embodiment, the low latency effect obtained by the fully redundant transmission is considered to be satisfactory when the first latency threshold is the lowest latency value that can ensure that the low latency effect obtained by the fully redundant transmission satisfies the predetermined requirement, that is, when the first latency value is not greater than the first latency threshold, and when the first latency value is greater than the first latency threshold, the low latency effect obtained by the fully redundant transmission is considered to be unsatisfactory.

In the case where the first delay value includes a first delay jitter value, a second delay jitter value, and a delay difference value, determining a first magnitude relationship between the first delay value and a first delay threshold value includes: respectively determining the magnitude relation among the first delay jitter value, the second delay jitter value, the delay difference value and the first delay threshold value; under the condition that the first delay jitter value, the second delay jitter value and the delay difference value are all larger than the first delay threshold value, the first magnitude relation is that the first delay value is larger than the first delay threshold value.

S303, the UPF network element switches the complete redundancy transmission to the first non-redundancy transmission under the condition that the first size relation is that the first time delay value is larger than the first time delay threshold value, and transmits data to the UE in a mode based on the first non-redundancy transmission.

The data is transmitted through two transmission paths by the full redundancy transmission, and the first non-redundancy transmission transmits the data through one transmission path, and accordingly, the network resources occupied by the first non-redundancy transmission when transmitting the data are smaller than the network resources occupied by the full redundancy transmission when transmitting the data.

When the first size relationship is that the first delay value is greater than the first delay threshold, it can be considered that the transmission effect obtained by the full redundancy transmission on the low delay is not matched with the occupied network resource, and the continuous transmission of data based on the full redundancy transmission mode can cause the waste of the network resource. At this time, the UPF network element switches the full redundancy transmission to the first non-redundancy transmission, and transmits the downlink data to the UE based on the first non-redundancy transmission mode.

In another embodiment, if the first size relationship is that the first delay value is greater than the first delay threshold, the UPF network element sends a PMF message to the UE to instruct the UE to switch the data transmission mode from full redundancy transmission to first non-redundancy transmission, and transmits uplink data to the UPF network element based on the first non-redundancy transmission mode.

The UPF network element monitors the time delay state of the complete redundant transmission in real time and updates the acquired first time delay value in real time. After the first time delay value is updated, the UPF network element compares the updated first time delay value with a first time delay threshold value to obtain a real-time first size relation, and then determines whether the complete redundant transmission is required to be switched to the first non-redundant transmission according to the real-time first size relation.

In another embodiment, after the UPF network element switches from the full redundancy transmission to the first non-redundancy transmission, monitoring a delay state of the first non-redundancy transmission, and if it is determined that the delay of the first non-redundancy transmission is large, switching the first non-redundancy transmission to the full redundancy transmission, and sending a PMF message to the UE to instruct the UE to switch the first non-redundancy transmission to the full redundancy transmission. Under the condition that the time delay of the full redundancy transmission is large, the full redundancy transmission is switched to the first non-redundancy transmission, and under the condition that the time delay of the first non-redundancy transmission is large, the first non-redundancy transmission is switched to the full redundancy transmission, so that flexible suspension and starting of the full redundancy transmission are realized, and the utilization rate of network resources is improved.

According to the technical scheme provided by the embodiment of the disclosure, under the condition that the UPF network element transmits data to the UE in a full redundancy transmission mode, a first delay value representing a delay state of the full redundancy transmission is monitored, and under the condition that the delay of the full redundancy transmission is determined to be large (the first delay value is larger than a first delay threshold), the low delay effect obtained by the full redundancy transmission can be considered to be poor, and further the network resource occupied by the effect obtained by the full redundancy transmission is considered to be unmatched. Under the condition that the first time delay value is larger than the first time delay threshold value, the complete redundant transmission is switched to the first non-redundant transmission, the UPF network element transmits data to the UE in the mode of the first non-redundant transmission, network resource waste caused by mismatching of the effect obtained by the complete redundant transmission and occupied resources is avoided, and the utilization rate of the network resource is improved.

In one embodiment, after the UPF network element receives the N4 rule sent by the SMF network element, the ongoing second non-redundant transmission is switched to a fully redundant transmission according to the indication of the N4 rule. In another embodiment, after the UPF network element receives the N4 rule sent by the SMF network element, the UPF network element enters a full redundancy transmission pre-start state according to an indication of the N4 rule, monitors a delay state of a second non-redundancy transmission being used, and switches the second non-redundancy transmission to the full redundancy transmission if a second delay value representing the delay state of the second non-redundancy transmission is greater than a second delay threshold.

As shown in fig. 4, the procedure of the UPF network element switching the second non-redundant transmission to the fully redundant transmission may include S401 to S405.

S401, the UPF network element receives an N4 rule sent by the SMF network element, wherein the N4 rule carries a second time delay threshold.

S402, the UPF network element enters a full redundancy transmission pre-starting state according to an N4 rule.

After receiving the N4 rule, the UPF network element enters a full redundancy transmission pre-start state according to the indication of the N4 rule, and continues to transmit downlink data to the UE by using a transmission model of the second non-redundancy transmission.

S403, when the UPF network element is in a complete redundancy transmission pre-starting state and data is transmitted to the UE in a second non-redundancy transmission mode, the UPF network element acquires a second delay value representing a delay state of the second non-redundancy transmission.

In one embodiment, the second delay value is determined based on the delay of a third path within the second reference time period, the third path being a transmission path for the second non-redundant transmission. The obtaining, by the UPF network element, a second delay value representing a delay state of a second non-redundant transmission may include: acquiring the time delay of the third path in the second reference time length; and determining a second delay value according to the delay of the third path in the second reference time period. The second reference time period is a set value, and about what value the second reference time period is, embodiments of the present disclosure are not limited, and may be empirically set. For example, the second reference time period is 100ms; either 1s or 10s.

The embodiments of the present disclosure are not limited with respect to how the UPF network element obtains the delay of the third path within the second reference duration. For example, the implementation manner of the UPF network element for obtaining the time delay of the third path in the second reference time period is the same as that of the step S301, and the implementation manner of the UPF network element for obtaining the time delays of the first path and the second path in the first reference time period is not described herein.

How the UPF network element determines the second delay value according to the delay of the third path in the second reference duration, which is not limited in the embodiments of the present disclosure. For example, the UPF network element calculates an average value of the time delays of the third path in the second reference duration, to obtain a second time delay value. For another example, the UPF network element calculates a sum of delays of the third path in the second reference duration, to obtain a second delay value. For another example, the UPF network element calculates a sum of time delays of the third path in the second reference duration, and performs a certain mathematical process on the sum of time delays of the third path in the second reference duration to obtain a second time delay value, where the mathematical process is a specific mathematical process, and the embodiment of the disclosure is not limited, and the mathematical process is, for example, a scaling process.

S404, the UPF network element determines a second magnitude relation between a second time delay value and a second time delay threshold value.

And S405, switching the second non-redundant transmission to the full-redundant transmission when the UPF network element has the second size relation that the second time delay value is larger than the second time delay threshold value, and transmitting data to the UE based on the full-redundant transmission.

In another embodiment, a second delay threshold is configured in the UPF network element, and after the UPF network element receives the N4 rule, the UPF network element enters a full redundancy transmission pre-start state according to an instruction of the N4 rule, and determines whether to switch the second non-redundancy transmission to the full redundancy transmission in the state according to the second delay threshold.

In another embodiment, the AMF network element sending ATSSS rule received by the UE carries a second delay threshold, after the UE receives the ATSSS rule, the UE enters a full redundancy transmission pre-starting state according to an instruction of the ATSSS rule, and determines whether to switch the second non-redundancy transmission to the full redundancy transmission in the state according to the second delay threshold. The second time delay threshold value carried in ATSSS rule is the same as the second time delay threshold value carried in N4 rule. The method for monitoring the delay state of the second non-redundant transmission by the UE is the same as the method for monitoring the delay state of the second non-redundant transmission by the UPF network element, and will not be described herein.

According to the technical scheme provided by the embodiment of the disclosure, after receiving the N4 rule carrying the second delay threshold sent by the SMF network element, the UPF network element enters a full redundancy transmission pre-starting state according to the N4 rule, and monitors the delay state of the second non-redundancy transmission in the state. And switching the second non-redundant transmission to a fully redundant transmission if a second delay value representing a delay state of the second non-redundant transmission is greater than a second delay threshold. In this way, a way of switching to the full redundancy transmission according to the N4 rule after the UPF network element receives the N4 rule is provided, so that the process of switching the UPF network element from the non-redundancy transmission to the full redundancy transmission is more perfect.

Fig. 5 illustrates a flowchart of a data transmission method in another embodiment of the present disclosure, and as illustrated in fig. 5, the data transmission method provided in the embodiment of the present disclosure may include S501 to S503.

S501, the PCF network element acquires a target threshold, wherein the target threshold comprises a first delay threshold.

In some embodiments, the first delay threshold is written in UDR, and the PCF network element obtains the first delay threshold, which may include: a first latency threshold is obtained from the UDR. In other embodiments, the AF signs up with an application installed in the UE, so that the AF may acquire target data generated by the application in the UE, and further the AF may update the first delay threshold according to the target data, and then the AF may send the updated first delay threshold to the PCF network element. Wherein the target data is data that can represent a network state and is related to a delay of a full redundancy transmission, and the embodiments of the present disclosure are not limited with respect to which data the target data specifically includes.

In another embodiment, the target threshold includes a first latency threshold and a second latency threshold, and acquiring the target threshold may include: acquiring a first delay threshold value and a second delay threshold value from a unified data warehouse function UDR; or receiving a first update message sent by an application function AF, wherein the first update message carries a first time delay threshold value and a second time delay threshold value; or obtaining a first delay threshold from the UDR; receiving a second update message sent by the AF, wherein the second update message carries a second delay threshold; or obtaining a second delay threshold from the UDR; and receiving a third updating message sent by the AF, wherein the third updating message carries the first time delay threshold value.

The specific implementation of updating the second delay threshold by the AF is the same as that of updating the first delay threshold, and the second delay threshold is analyzed and updated according to the data related to the second non-redundant transmission by collecting the data related to the delay of the second non-redundant transmission generated by the application program installed by the UE. And then, the updated second time delay threshold value is sent to the PCF network element, and the PCF network element completes the acquisition of the second time delay threshold value after receiving the updating message carrying the second time delay threshold value and sent by the AF.

S502, PCF network element generates policy and charging control PCC rule carrying target threshold.

S503, PCF network element sends PCC rule to session management function SMF network element, so that SMF network element generates and sends N4 rule carrying target threshold to UPF network element, and generates and sends ATSSS rule to user equipment UE, N4 rule and ATSSS rule are used for indicating UPF network element and UE to perform data transmission based on complete redundancy transmission mode.

Taking the example that the target threshold includes the first delay threshold, after the SMF network element receives the PCC rule sent by the PCF network element, generating an N4 rule according to the first delay threshold carried in the PCC rule, and then sending the N4 rule carrying the first delay threshold to the UPF network element, where the UPF network element determines to use a full redundancy transmission mode to perform data transmission according to the N4 rule. In addition, the SMF network element generates ATSSS a rule according to the PCC rule, and sends the ATSSS rule to the UE, and the UE determines, according to the ATSSS rule, to transmit uplink data to the UPF based on the full redundancy transmission.

Taking the example that the target threshold further comprises a second delay threshold, i.e. the target threshold comprises a first delay threshold and a second delay threshold. And the second delay threshold is used for indicating the UE to switch the second non-redundant transmission to the full-redundant transmission under the condition that the UE is in a full-redundant transmission pre-starting state and the second delay value of the used second non-redundant transmission is larger than the second delay threshold, so that data can be conveniently transmitted to the UPF network element based on the full-redundant transmission.

After the SMF network element receives the PCC rule sent by the PCF network element, an N4 rule is generated according to a first delay threshold and a second delay threshold carried in the PCC rule, then the N4 rule carrying the first delay threshold and the second delay threshold is sent to the UPF network element, the UPF network element enters a full redundancy transmission pre-starting state according to the N4 rule, the delay state of the second non-redundancy transmission is monitored in the state, and the PCF network element switches the second non-redundancy transmission into the full redundancy transmission under the condition that the second delay value representing the second non-redundancy transmission is larger than the second delay threshold and performs data transmission based on the full redundancy transmission mode.

In addition, the SMF network element generates ATSSS rule carrying a second delay threshold according to the PCC rule, and sends the ATSSS rule to the UE, the UE enters a full redundancy transmission pre-start state according to the ATSSS rule, monitors a delay state of the second non-redundancy transmission in the state, switches the second non-redundancy transmission to the full redundancy transmission when the second delay value representing the second non-redundancy transmission is greater than the second delay threshold, and performs data transmission based on the full redundancy transmission mode.

In the technical scheme provided by the embodiment of the disclosure, the PCF network element sends the first delay threshold and the second delay threshold to the SMF network element through the PCC rule, and then the SMF network element sends the first delay threshold and the second delay threshold to the UPF network element through the N4 rule, and sends the second delay threshold to the UE through the ATSSS rule. And then, the UPF network element and the UE determine whether to switch the second non-redundant transmission into the full-redundant transmission according to the second time delay threshold value, and the UPF network element determines whether to switch the full-redundant transmission into the first non-redundant transmission according to the first time delay threshold value. By the method, the switching between the non-redundant transmission and the starting of the full-redundant transmission of the UPF network element and the UE is more perfect, the problem of network resource waste caused by mismatching of the effect obtained by the full-redundant transmission and occupied resources is avoided, and the utilization rate of network resources is improved.

Taking the PCF network element to issue the first delay threshold and the second delay threshold as an example, the data transmission method provided in another embodiment of the present disclosure is described with reference to the corresponding embodiments of fig. 3, fig. 4, and fig. 5, and as shown in fig. 6, the data transmission method provided in another embodiment of the present disclosure may include S601 to S611.

S601, establishing a multi-access PDU session between the UE and the UPF network element.

S602, the PCF network element transmits PCC rules to the SMF network element, wherein the PCC rules carry a first time delay threshold value and a second time delay threshold value.

S603, the SMF network element analyzes ATSSS rules and N4 rules from the PCC rules, wherein the N4 rules carry a first delay threshold and a second delay threshold, and the ATSSS rules carry the second delay threshold.

S604, the SMF net friend sends ATSSS rules to the UE through the AMF net element.

S605, the SMF network element sends an N4 rule to the UPF network element.

And S606, the UE and the UPF network element enter a full redundancy transmission pre-starting state according to ATSSS rules and N4 rules respectively.

S607, the UPF network element and the UE monitor a delay state of the second non-redundant transmission, and switch the second non-redundant transmission to a full redundant transmission if a second delay value indicating the delay state of the second non-redundant transmission is greater than a second delay threshold.

And S608, the UPF network element monitors the time delay state of the complete redundant transmission.

S609, the UPF network element switches the complete redundancy transmission to the first non-redundancy transmission under the condition that the first delay value representing the delay state of the complete redundancy transmission is larger than the first delay threshold value, and transmits downlink data to the UE based on the first non-redundancy transmission mode.

S610, the UPF network element sends a PMF message to the UE.

S611, the UE switches the complete redundancy transmission to the first non-redundancy transmission according to the received PMF message, and transmits the uplink data based on the first non-redundancy transmission mode.

According to the technical scheme provided by the embodiment of the disclosure, in a multi-access PDU conversation scene, when a UPF network element transmits data to UE in a full redundancy transmission mode, a first delay value representing a delay state of full redundancy transmission is monitored, and when the first delay value is determined to be larger than a first delay threshold value, the low delay effect obtained by the full redundancy transmission can be considered to be poor, and then the effect obtained by the full redundancy transmission is considered to be unmatched with occupied network resources. And then, switching the complete redundant transmission into the first non-redundant transmission, and transmitting data to the UE by the UPF network element in the mode of the first non-redundant transmission, so that network resource waste caused by mismatching of the effect obtained by the complete redundant transmission and occupied resources is avoided, and the utilization rate of the network resource is improved.

Based on the same inventive concept, two data transmission apparatuses are also provided in the embodiments of the present disclosure, as described in the following embodiments. Since the principle of solving the problem of the embodiment of the device is similar to that of the embodiment of the method, the implementation of the embodiment of the device can be referred to the implementation of the embodiment of the method, and the repetition is omitted.

Fig. 7 is a schematic diagram of a data transmission apparatus in an embodiment of the disclosure, where the apparatus is applied to a UPF network element, as shown in fig. 7, and includes: a first obtaining module 71, configured to obtain a first delay value indicating a delay state of the full redundancy transmission when transmitting data to the UE based on the full redundancy transmission; a determining module 72 for determining a first magnitude relation between the first delay value and a first delay threshold; a switching module 73, configured to switch the full-redundancy transmission to the first non-redundancy transmission, so as to transmit data to the UE based on the first non-redundancy transmission, if the first size relationship is that the first delay value is greater than the first delay threshold; wherein the first non-redundant transmission occupies less network resources than the fully redundant transmission.

In one embodiment of the present disclosure, the first delay value includes: the first delay jitter value, the second delay jitter value and the delay difference value; the time delay difference value is determined according to the time delay of the first path and the second path for complete redundant transmission in a first reference time length; the first delay jitter value is determined according to the delay jitter of the first path in a first reference time length; the second delay jitter value is determined according to the delay jitter of the second path in the first reference time length; a determining module 72, configured to determine a magnitude relation among the first delay jitter value, the second delay jitter value, the delay difference value, and the first delay threshold value, respectively; under the condition that the first delay jitter value, the second delay jitter value and the delay difference value are all larger than the first delay threshold value, the first magnitude relation is that the first delay value is larger than the first delay threshold value.

In one embodiment of the present disclosure, the apparatus further comprises: the receiving module 74 is configured to receive an N4 rule sent by the session management function SMF network element, where the N4 rule carries a first delay threshold.

In one embodiment of the present disclosure, the apparatus further comprises: a first sending module 75, configured to send a performance management function PMF message to the UE to instruct the UE to switch the manner of transmitting the data from the full redundancy transmission to the first non-redundancy transmission when the first size relationship is that the first delay value is greater than the first delay threshold.

In one embodiment of the present disclosure, the receiving module 74 is further configured to receive an N4 rule sent by the SMF network element, where the N4 rule carries a second delay threshold; the switching module 73 is further configured to enter a full redundancy transmission pre-start state according to the N4 rule; the first obtaining module 71 is further configured to obtain a second delay value that represents a delay state of the second non-redundant transmission when the UPF network element is in a fully redundant transmission pre-on state and data is transmitted to the UE by the second non-redundant transmission mode; a determining module 72, further configured to determine a second magnitude relation between the second delay value and a second delay threshold; the switching module 73 is further configured to switch the second non-redundant transmission to a fully redundant transmission, so as to transmit data to the UE based on the fully redundant transmission, if the second size relationship is that the second delay value is greater than the second delay threshold.

In one embodiment of the present disclosure, the second delay value is determined according to a delay of a third path within a second reference time period, the third path being a transmission path for a second non-redundant transmission.

Fig. 8 is a schematic diagram of a data transmission apparatus according to another embodiment of the disclosure, where the apparatus, as shown in fig. 8, is applied to a UPF network element, and includes: a second obtaining module 81, configured to obtain a target threshold, where the target threshold includes a first latency threshold; a generating module 82, configured to generate a policy and charging control PCC rule that carries a target threshold; a second sending module 83, configured to send PCC rules to a session management function SMF network element, so that the SMF network element generates and sends an N4 rule carrying a target threshold to the UPF network element, and generates and sends ATSSS rules to the user equipment UE, where the N4 rule and ATSSS rule are respectively used to instruct the UPF network element and the UE to perform data transmission based on a manner of full redundancy transmission.

In one embodiment of the present disclosure, the target threshold further includes a second latency threshold, and ATSSS rules carry the second latency threshold; and the second delay threshold is used for indicating the UE to switch the second non-redundant transmission to the full-redundant transmission under the condition that the UE is in a full-redundant transmission pre-starting state and the second delay value of the used second non-redundant transmission is larger than the second delay threshold, so that data can be conveniently transmitted to the UPF network element based on the full-redundant transmission.

In one embodiment of the present disclosure, the second obtaining module 81 is configured to obtain the first latency threshold and the second latency threshold from the unified data warehouse function UDR; or receiving a first update message sent by an application function AF, wherein the first update message carries a first time delay threshold value and a second time delay threshold value; or obtaining a first delay threshold from the UDR; receiving a second update message sent by the AF, wherein the second update message carries a second delay threshold; or obtaining a second delay threshold from the UDR; and receiving a third updating message sent by the AF, wherein the third updating message carries the first time delay threshold value.

Those skilled in the art will appreciate that the various aspects of the present disclosure may be implemented as a system, method, or program product. Accordingly, various aspects of the disclosure may be embodied in the following forms, namely: an entirely hardware embodiment, an entirely software embodiment (including firmware, micro-code, etc.) or an embodiment combining hardware and software aspects may be referred to herein as a "circuit," module "or" system.

An electronic device 900 according to such an embodiment of the present disclosure is described below with reference to fig. 9. The electronic device 900 shown in fig. 9 is merely an example and should not be construed to limit the functionality and scope of use of embodiments of the present disclosure in any way.

As shown in fig. 9, the electronic device 900 is embodied in the form of a general purpose computing device. Components of electronic device 900 may include, but are not limited to: the at least one processing unit 910, the at least one storage unit 920, and a bus 930 connecting the different system components (including the storage unit 920 and the processing unit 910).

Wherein the storage unit stores program code that is executable by the processing unit 910 such that the processing unit 910 performs steps according to various exemplary embodiments of the present disclosure described in the section "detailed description of the invention" above.

The storage unit 920 may include readable media in the form of volatile storage units, such as Random Access Memory (RAM) 9201 and/or cache memory 9202, and may further include Read Only Memory (ROM) 9203.

The storage unit 920 may also include a program/utility 9204 having a set (at least one) of program modules 9205, such program modules 9205 include, but are not limited to: an operating system, one or more application programs, other program modules, and program data, each or some combination of which may include an implementation of a network environment.

The bus 930 may be one or more of several types of bus structures including a memory unit bus or memory unit controller, a peripheral bus, an accelerated graphics port, a processing unit, or a local bus using any of a variety of bus architectures.

The electronic device 900 may also communicate with one or more external devices 940 (e.g., keyboard, pointing device, bluetooth device, etc.), one or more devices that enable a user to interact with the electronic device 900, and/or any devices (e.g., routers, modems, etc.) that enable the electronic device 900 to communicate with one or more other computing devices. Such communication may occur through an input/output (I/O) interface 950. Also, electronic device 900 may communicate with one or more networks such as a Local Area Network (LAN), a Wide Area Network (WAN), and/or a public network, such as the Internet, through network adapter 960. As shown in fig. 9, the network adapter 960 communicates with other modules of the electronic device 900 over the bus 930. It should be appreciated that although not shown, other hardware and/or software modules may be used in connection with electronic device 900, including, but not limited to: microcode, device drivers, redundant processing units, external disk drive arrays, RAID systems, tape drives, data backup storage systems, and the like.

From the above description of embodiments, those skilled in the art will readily appreciate that the example embodiments described herein may be implemented in software, or may be implemented in software in combination with the necessary hardware. Thus, the technical solution according to the embodiments of the present disclosure may be embodied in the form of a software product, which may be stored in a non-volatile storage medium (may be a CD-ROM, a U-disk, a mobile hard disk, etc.) or on a network, including several instructions to cause a computing device (may be a personal computer, a server, a terminal device, or a network device, etc.) to perform the method according to the embodiments of the present disclosure.

In an exemplary embodiment of the present disclosure, a computer-readable storage medium, which may be a readable signal medium or a readable storage medium, is also provided. On which a program product is stored which enables the implementation of the method described above of the present disclosure. In some possible implementations, various aspects of the disclosure may also be implemented in the form of a program product comprising program code for causing a terminal device to carry out the steps according to the various exemplary embodiments of the disclosure as described in the section "detailed description" above of the disclosure, when the program product is run on the terminal device.

More specific examples of the computer readable storage medium in the present disclosure may include, but are not limited to: an electrical connection having one or more wires, a portable computer diskette, a hard disk, a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disc read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing.

In this disclosure, a computer readable storage medium may include a data signal propagated in baseband or as part of a carrier wave, with readable program code embodied therein. Such a propagated data signal may take any of a variety of forms, including, but not limited to, electro-magnetic, optical, or any suitable combination of the foregoing. A readable signal medium may also be any readable medium that is not a readable storage medium and that can communicate, propagate, or transport a program for use by or in connection with an instruction execution system, apparatus, or device.

Alternatively, the program code embodied on a computer readable storage medium may be transmitted using any appropriate medium, including but not limited to wireless, wireline, optical fiber cable, RF, etc., or any suitable combination of the foregoing.

In particular implementations, the program code for carrying out operations of the present disclosure may be written in any combination of one or more programming languages, including an object oriented programming language such as Java, C++ or the like and conventional procedural programming languages, such as the "C" programming language or similar programming languages. The program code may execute entirely on the user's computing device, partly on the user's device, as a stand-alone software package, partly on the user's computing device, partly on a remote computing device, or entirely on the remote computing device or server. In the case of remote computing devices, the remote computing device may be connected to the user computing device through any kind of network, including a Local Area Network (LAN) or a Wide Area Network (WAN), or may be connected to an external computing device (e.g., connected via the Internet using an Internet service provider).

It should be noted that although in the above detailed description several modules or units of a device for action execution are mentioned, such a division is not mandatory. Indeed, the features and functionality of two or more modules or units described above may be embodied in one module or unit in accordance with embodiments of the present disclosure. Conversely, the features and functions of one module or unit described above may be further divided into a plurality of modules or units to be embodied.

Furthermore, although the steps of the methods in the present disclosure are depicted in a particular order in the drawings, this does not require or imply that the steps must be performed in that particular order, or that all illustrated steps be performed, to achieve desirable results. Additionally or alternatively, certain steps may be omitted, multiple steps combined into one step to perform, and/or one step decomposed into multiple steps to perform, etc.

From the description of the above embodiments, those skilled in the art will readily appreciate that the example embodiments described herein may be implemented in software, or may be implemented in software in combination with the necessary hardware. Thus, the technical solution according to the embodiments of the present disclosure may be embodied in the form of a software product, which may be stored in a non-volatile storage medium (may be a CD-ROM, a U-disk, a mobile hard disk, etc.) or on a network, including several instructions to cause a computing device (may be a personal computer, a server, a mobile terminal, or a network device, etc.) to perform the method according to the embodiments of the present disclosure.

Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure disclosed herein. This disclosure is intended to cover any adaptations, uses, or adaptations of the disclosure following the general principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope of the disclosure being indicated by the following claims.

Claims

1. A data transmission method, applied to a user plane function UPF network element, comprising:

under the condition of transmitting data to User Equipment (UE) based on a complete redundancy transmission mode, acquiring a first delay value representing a delay state of the complete redundancy transmission;

Determining a first magnitude relation between the first delay value and a first delay threshold;

Switching full redundancy transmission to first non-redundancy transmission under the condition that the first size relation is that the first time delay value is larger than the first time delay threshold value, and transmitting data to the UE in a mode based on the first non-redundancy transmission;

Wherein the first non-redundant transmission occupies less network resources than the fully redundant transmission.

2. The method of claim 1, wherein the first delay value comprises: the first delay jitter value, the second delay jitter value and the delay difference value;

The time delay difference value is determined according to the time delay of the first path and the second path for complete redundancy transmission in a first reference time length; the first delay jitter value is determined according to the delay jitter of the first path in the first reference time length; the second delay jitter value is determined according to the delay jitter of the second path in the first reference time length;

the determining a first magnitude relation between the first delay value and a first delay threshold value includes:

Determining the magnitude relation among the first delay jitter value, the second delay jitter value, the delay difference value and the first delay threshold value respectively;

And under the condition that the first delay jitter value, the second delay jitter value and the delay difference value are all larger than the first delay threshold value, the first magnitude relation is that the first delay value is larger than the first delay threshold value.

3. The method as recited in claim 1, further comprising:

and receiving an N4 rule sent by a session management function SMF network element, wherein the N4 rule carries the first delay threshold.

4. The method as recited in claim 1, further comprising:

And if the first size relation is that the first time delay value is larger than the first time delay threshold value, sending a Performance Management Function (PMF) message to the UE so as to instruct the UE to switch the mode of transmitting data from full redundancy transmission to the first non-redundancy transmission.

5. The method as recited in claim 1, further comprising:

receiving an N4 rule sent by an SMF network element, wherein the N4 rule carries a second delay threshold;

entering a complete redundant transmission pre-starting state according to the N4 rule;

acquiring a second delay value representing a delay state of a second non-redundant transmission under the condition that the UPF network element is in a fully redundant transmission pre-starting state and data is transmitted to the UE in a second non-redundant transmission mode;

determining a second magnitude relationship between the second delay value and the second delay threshold;

and switching the second non-redundant transmission to the full-redundant transmission under the condition that the second size relation is that the second time delay value is larger than the second time delay threshold value, and transmitting data to the UE based on the full-redundant transmission.

6. The method of claim 5, wherein the second delay value is determined based on a delay of a third path within a second reference time period, the third path being a transmission path over which the second non-redundant transmission is performed.

7. The data transmission method is characterized by being applied to PCF network elements with policy control functions and comprising the following steps:

acquiring a target threshold, wherein the target threshold comprises a first delay threshold;

generating a Policy and Charging Control (PCC) rule carrying the target threshold;

And sending the PCC rule to a Session Management Function (SMF) network element so that the SMF network element generates and sends an N4 rule carrying the target threshold value to a UPF network element, and generates and sends ATSSS rules to User Equipment (UE), wherein the N4 rule and the ATSSS rule are respectively used for indicating the UPF network element and the UE to perform data transmission based on a complete redundancy transmission mode.

8. The method of claim 7, wherein the target threshold further comprises a second latency threshold, the ATSSS rule carrying the second latency threshold;

And the second delay threshold is used for indicating the UE to switch the second non-redundant transmission to the full redundant transmission under the condition that the UE is in a full redundant transmission pre-starting state and the second delay value of the used second non-redundant transmission is larger than the second delay threshold, so that data can be conveniently transmitted to the UPF network element based on the full redundant transmission mode.

9. The method of claim 8, wherein the obtaining the target threshold comprises:

acquiring the first delay threshold and the second delay threshold from a unified data warehouse function UDR;

or receiving a first update message sent by an application function AF, wherein the first update message carries the first delay threshold value and the second delay threshold value;

Or acquiring the first delay threshold from the UDR; receiving a second update message sent by the AF, wherein the second update message carries the second time delay threshold;

or obtaining the second time delay threshold value from the UDR; and receiving a third update message sent by the AF, wherein the third update message carries the first delay threshold value.

10. A data transmission device, applied to a user plane function UPF network element, comprising:

the first acquisition module is used for acquiring a first delay value representing a delay state of the full redundancy transmission under the condition that data is transmitted to the User Equipment (UE) based on the full redundancy transmission mode;

a determining module, configured to determine a first magnitude relation between the first delay value and a first delay threshold;

A switching module, configured to switch, when the first size relationship is that the first delay value is greater than the first delay threshold, full-redundancy transmission to first non-redundancy transmission, so as to transmit data to the UE based on the first non-redundancy transmission;

11. A data transmission device, applied to a PCF network element of a policy control function, comprising:

The second acquisition module is used for acquiring a target threshold value, wherein the target threshold value comprises a first delay threshold value;

a generation module, configured to generate a policy and charging control PCC rule carrying the target threshold;

And the second sending module is used for sending the PCC rule to a session management function SMF network element so that the SMF network element generates and sends an N4 rule carrying the target threshold value to a UPF network element, and generates and sends ATSSS rules to User Equipment (UE), wherein the N4 rule and the ATSSS rule are respectively used for indicating the UPF network element and the UE to perform data transmission based on a complete redundancy transmission mode.

12. An electronic device, comprising:

A processor; and

A memory for storing executable instructions of the processor;

wherein the processor is configured to perform the data transmission method of any one of claims 1 to 9 via execution of the executable instructions.

13. A computer-readable storage medium, on which a computer program is stored, characterized in that the computer program, when being executed by a processor, implements the data transmission method of any one of claims 1 to 9.