阅读说明：本技术 non-GBR数据传输控制方法、系统和SMF及用户终端 (non-GBR data transmission control method, system, SMF and user terminal ) 是由 黎明雪 龙彪 于 2020-04-26 设计创作，主要内容包括：本公开提出一种non-GBR数据传输控制方法、系统和SMF及用户终端,涉及移动通信技术领域。本公开的一种non-GBR数据传输控制方法,包括：SMF在用户终端发起建立网络切片上的会话的情况下,从预定网元获取切片non-GBR限制信息；根据切片non-GBR限制信息限制对应网络切片上的数据传输速率。通过这样的方法,能够设置切片non-GBR限制信息,在建立网络切片上的会话时,针对网络切片进行速率限制,从而便于合理配置网络切片资源,提高网络切片中non-GBR数据流的传输效率。(The disclosure provides a non-GBR data transmission control method, a system, an SMF and a user terminal, and relates to the technical field of mobile communication. The disclosed non-GBR data transmission control method comprises the following steps: the SMF acquires slice non-GBR restriction information from a predetermined network element under the condition that a user terminal initiates the establishment of a session on a network slice; and limiting the data transmission rate on the corresponding network slice according to the slice non-GBR limitation information. By the method, slice non-GBR limiting information can be set, and rate limitation is carried out on the network slice when a session on the network slice is established, so that network slice resources are conveniently and reasonably configured, and the transmission efficiency of non-GBR data streams in the network slice is improved.)

1. A method for controlling non-guaranteed bit rate data transmission, comprising:

under the condition that a user terminal initiates establishment of a session on a network slice, a Session Management Function (SMF) acquires slice non-guaranteed bit rate non-GBR (generic bit rate-generic bit rate) limiting information from a predetermined network element;

and limiting the data transmission rate on the corresponding network slice according to the slice non-GBR limitation information.

2. The method of claim 1, wherein the slice non-GBR restriction information comprises slice non-GBR uplink restriction information and slice non-GBR downlink restriction information.

3. The method of claim 2, wherein the obtaining slice non-GBR restriction information from a predetermined network element comprises:

acquiring user subscription data from a Unified Data Management (UDM), wherein the user subscription data comprises the slice non-GBR uplink limitation information; and

and acquiring Session Management (SM) strategy information from a strategy control function (PCF), wherein the SM strategy information comprises the slice non-GBR downlink limitation information.

4. The method of claim 3, wherein the obtaining user subscription data from the UDM comprises:

sending a user subscription data acquisition request to the UDM;

and receiving user subscription data fed back by the UDM, wherein the user subscription data comprises a Slice-uplink-aggregation maximum bit rate Slice-UL-AMBR field carrying the Slice non-GBR uplink limitation information.

5. The method of claim 3, wherein the obtaining SM policy information from the PCF comprises:

sending an SM strategy control association request to the PCF;

and receiving SM strategy information fed back by the PCF, wherein the SM strategy information comprises a Slice-downlink-aggregation maximum bit rate Slice-DL-AMBR field carrying the Slice non-GBR downlink limiting information.

6. The method of claim 2, wherein said limiting a data transmission rate on a corresponding network slice according to the slice non-GBR restriction information comprises at least one of:

monitoring the downlink data rate of the user on the user plane of the network slice; under the condition that the downlink data rate of the user plane exceeds the downlink limitation information of the slice non-GBR, a data packet discarding instruction is issued to a UPF; or

And sending the slice non-GBR uplink limitation information to a user terminal so that the user terminal limits the uplink data transmission rate on the corresponding network slice according to the slice non-GBR uplink limitation information.

7. The method of claim 1, further comprising:

receiving a request for creating SM context from an access and mobility management function (AMF), wherein the AMF sends the request for creating SM context to the SMF under the condition of receiving a Protocol Data Unit (PDU) session establishment request from a terminal on a network slice;

and determining that the user terminal initiates the establishment of the session on the network slice according to the SM context creating request.

8. A method for controlling non-guaranteed bit rate data transmission, comprising:

a user terminal acquires slice non-guaranteed bit rate non-GBR uplink limiting information from a network side, wherein a Session Management Function (SMF) acquires the slice non-guaranteed bit rate non-GBR uplink limiting information from a predetermined network element and feeds the slice non-guaranteed bit rate non-GBR uplink limiting information back to the user terminal under the condition that the user terminal initiates establishment of a session on a network slice;

and limiting the uplink data transmission rate of the session on the network slice according to the slice non-GBR downlink limitation information.

9. The method of claim 8, further comprising:

the user terminal sends a protocol data unit PDU session establishment request on the network slice of the terminal to an access and mobility management function AMF in order to initiate the establishment of a session on the network slice.

10. The method of claim 7 wherein said limiting an upstream data transmission rate for a session on the network slice in accordance with the slice non-GBR downstream restriction information comprises:

monitoring a data transmission rate of a session on the network slice;

and under the condition that the uplink data transmission rate exceeds the slice non-GBR uplink limitation information, discarding the exceeding uplink data packet.

11. A session management function apparatus, comprising:

the device comprises a speed limit information acquisition unit, a speed limit information acquisition unit and a speed limit information acquisition unit, wherein the speed limit information acquisition unit is configured to acquire slice non-guaranteed bit rate non-GBR limiting information from a preset network element under the condition that a user terminal initiates the establishment of a session on a network slice;

a rate limiting unit configured to limit a data transmission rate on a corresponding network slice according to the slice non-GBR limitation information.

12. The apparatus of claim 11, wherein the slice non-GBR restriction information comprises slice non-GBR uplink restriction information and slice non-GBR downlink restriction information;

the rate limiting unit comprises at least one of:

a downlink rate limiting subunit configured to monitor a user plane downlink data rate of a user in the network slice; under the condition that the downlink data rate of the user plane exceeds the downlink limitation information of the slice non-GBR, a data packet discarding instruction is issued to a UPF; or

And the uplink speed limit information sending subunit is configured to send the slice non-GBR uplink limit information to the user terminal, so that the user terminal limits the uplink data transmission rate on the corresponding network slice according to the slice non-GBR uplink limit information.

13. The apparatus of claim 11, further comprising:

a request acquisition unit configured to receive a request for creating an SM context from an access and mobility management function, AMF, wherein the AMF sends the request for creating the SM context to the SMF when receiving a protocol data unit, PDU, session establishment request on a network slice from a terminal;

the speed limit information acquisition unit is configured to determine that the user terminal initiates session establishment on the network slice according to the create SM context request.

14. A user terminal, comprising:

an uplink limitation information obtaining unit, configured to obtain slice non-guaranteed bit rate non-GBR uplink limitation information from a network side, where a session management function SMF obtains the slice non-guaranteed bit rate non-GBR uplink limitation information from a predetermined network element and feeds back the information to a user terminal when the user terminal initiates establishment of a session on a network slice;

an upstream speed limiting unit configured to limit an upstream data transmission rate of a session on the network slice according to the slice non-GBR downstream limitation information.

15. The user terminal of claim 14, further comprising:

a session initiating unit configured to send a protocol data unit, PDU, session establishment request on a network slice of the terminal to an access and mobility management function, AMF, in order to initiate establishment of a session on the network slice.

16. A network element, comprising:

a memory; and

a processor coupled to the memory, the processor configured to perform the method of any of claims 1-10 based on instructions stored in the memory.

17. A non-guaranteed bit rate data transmission control system comprising:

a session management function, SMF, configured to perform the method of any of claims 1 to 7;

the Unified Data Management (UDM) is configured to generate slice non-guaranteed bit rate non-GBR uplink limitation information according to user and network slice parameters and provide the slice non-guaranteed bit rate non-GBR uplink limitation information to the SMF; and

and the policy control function PCF is configured to generate slice non-GBR downlink limitation information according to the user and network slice parameters and provide the slice non-GBR downlink limitation information to the SMF.

18. The system of claim 17, further comprising:

a user terminal configured to perform the method of any of claims 8 to 10.

19. A computer readable storage medium having stored thereon computer program instructions which, when executed by a processor, implement the steps of the method of any one of claims 1 to 10.

Technical Field

The disclosure relates to the technical field of mobile communication, in particular to a non-GBR data transmission control method, a system, an SMF and a user terminal.

Background

Network slicing technology is one of the key features of 5G mobile communication systems: a virtualization technology is utilized to virtualize a plurality of different logic networks on a unified network infrastructure so as to meet different business and user requirements respectively.

Disclosure of Invention

One object of the present disclosure is to improve the controllability and rationality of network slice resource configuration.

According to an aspect of some embodiments of the present disclosure, there is provided a non-Guaranteed Bit Rate (non-GBR) data transmission control method including: the SMF (Session Management Function) acquires slice non-GBR restriction information from a predetermined network element under the condition that a user terminal initiates the establishment of a Session on a network slice; and limiting the data transmission rate on the corresponding network slice according to the slice non-GBR limitation information.

In some embodiments, the slice non-GBR restriction information includes slice non-GBR uplink restriction information and slice non-GBR downlink restriction information.

In some embodiments, the obtaining slice non-GBR restriction information from a predetermined network element comprises: acquiring user subscription Data from a Universal Data Manager (UDM), wherein the user subscription Data comprises slice non-GBR uplink limitation information; and acquiring SM (Session Management function) Policy information from PCF (Policy Control function), wherein the SM Policy information includes slice non-GBR downlink restriction information.

In some embodiments, obtaining user subscription data from the UDM comprises: sending a user signing data acquisition request to the UDM; and receiving user subscription data fed back by the UDM, wherein the user subscription data comprises Slice-UL-AMBR fields carrying Slice non-GBR uplink limitation information.

In some embodiments, obtaining SM policy information from the PCF comprises: sending an SM strategy control association request to the PCF; and receiving SM strategy information fed back by the PCF, wherein the SM strategy information comprises a Slice-DL-AMBR field carrying Slice non-GBR downlink limitation information.

In some embodiments, limiting the data transmission rate on the corresponding network slice according to the slice non-GBR restriction information comprises at least one of: monitoring the downlink data rate of a user on the user plane of the network slice; when the downlink data rate of the User Plane exceeds the downlink limit information of the non-GBR slice, a data packet discarding instruction is issued to a User Plane Function (UPF); or the slice non-GBR uplink limitation information is sent to the user terminal, so that the user terminal limits the uplink data transmission rate on the corresponding network slice according to the slice non-GBR uplink limitation information.

In some embodiments, the non-GBR data transmission control method further includes: receiving an SM context creation request from an AMF (Access and Mobility Management Function), wherein the AMF sends the SM context creation request to an SMF (short message service) under the condition of receiving a PDU (Protocol Data Unit) session establishment request from a terminal on a network slice; and determining that the user terminal initiates the establishment of the session on the network slice according to the SM context creating request.

By the method, slice non-GBR limiting information can be set, and rate limitation is carried out on the network slice when a session on the network slice is established, so that network slice resources are conveniently and reasonably configured, and the transmission efficiency of non-GBR data streams in the network slice is improved.

According to an aspect of some embodiments of the present disclosure, there is provided a non-GBR data transmission control method, including: a user terminal acquires slice non-guaranteed bit rate non-GBR uplink limitation information from a network side, wherein the SMF acquires the slice non-GBR uplink limitation information from a preset network element and feeds the slice non-GBR uplink limitation information back to the user terminal under the condition that the user terminal initiates the establishment of a session on a network slice; and limiting the uplink data transmission rate of the session on the network slice according to the slice non-GBR downlink limitation information.

In some embodiments, the non-GBR data transmission control method further includes: the user terminal sends a protocol data unit, PDU, session establishment request on the network slice of the terminal to the access and mobility management function, AMF, in order to initiate the establishment of a session on the network slice.

In some embodiments, limiting the upstream data transmission rate of a session on a network slice according to slice non-GBR downstream restriction information comprises: monitoring a data transmission rate of a session on a network slice; and under the condition that the uplink data transmission rate exceeds the slice non-GBR uplink limitation information, discarding the exceeding uplink data packet.

By the method, the terminal can obtain the slice non-GBR uplink limitation information, and then performs rate limitation on the network slice uplink data flow, so that network slice resources are conveniently and reasonably configured, and the transmission efficiency of the non-GBR data flow in the network slice is improved.

According to an aspect of some embodiments of the present disclosure, there is provided a session management function apparatus, including: the speed limit information acquisition unit is configured to acquire slice non-GBR restriction information from a predetermined network element under the condition that a user terminal initiates establishment of a session on a network slice; a rate limiting unit configured to limit a data transmission rate on the corresponding network slice according to the slice non-GBR limitation information.

In some embodiments, the slice non-GBR restriction information includes slice non-GBR uplink restriction information and slice non-GBR downlink restriction information; the rate limiting unit comprises at least one of: a downlink rate limiting subunit configured to monitor a user plane downlink data rate of a user in a network slice; under the condition that the downlink data rate of the user plane exceeds the downlink limitation information of the slice non-GBR, a data packet discarding instruction is issued to the UPF; or the uplink speed limit information sending subunit is configured to send the slice non-GBR uplink limit information to the user terminal, so that the user terminal limits the uplink data transmission rate on the corresponding network slice according to the slice non-GBR uplink limit information.

In some embodiments, the session management function means further comprises: the request acquisition unit is configured to receive a request for creating SM context from the AMF, wherein the AMF sends the request for creating SM context to the SMF under the condition that the AMF receives a PDU session establishment request from a terminal on a network slice; the speed limit information acquisition unit is configured to determine that the user terminal initiates session establishment on the network slice according to the create SM context request.

The session management function device can acquire slice non-GBR limiting information, and performs rate limitation on the network slice when establishing a session on the network slice, so that network slice resources are conveniently and reasonably configured, and the transmission efficiency of non-GBR data streams in the network slice is improved.

According to an aspect of some embodiments of the present disclosure, there is provided a user terminal, including: an uplink limitation information obtaining unit, configured to obtain slice non-GBR uplink limitation information from a network side, where the SMF obtains the slice non-GBR uplink limitation information from a predetermined network element and feeds the information back to the user terminal when the user terminal initiates establishment of a session on a network slice; an upstream speed limiting unit configured to limit an upstream data transmission rate of the session on the network slice according to the slice non-GBR downstream limitation information.

In some embodiments, the user terminal further comprises: a session initiation unit configured to send a PDU session establishment request on a network slice of the terminal to the AMF in order to initiate establishment of a session on the network slice.

The terminal can obtain slice non-GBR uplink limitation information, and then carries out rate limitation on network slice uplink data streams, so that network slice resources are conveniently and reasonably configured, and the transmission efficiency of the non-GBR data streams in the network slices is improved.

According to an aspect of some embodiments of the present disclosure, there is provided a network element, comprising: a memory; and a processor coupled to the memory, the processor configured to perform any one of the non-GBR data transmission control methods mentioned above based on instructions stored in the memory.

According to an aspect of some embodiments of the present disclosure, there is provided a non-GBR data transmission control system including: an SMF configured to perform any one of the non-GBR data transmission control methods performed by the SMF above; the UDM is configured to generate slice non-GBR uplink limitation information according to the user and network slice parameters and provide the slice non-GBR uplink limitation information to the SMF; and the PCF is configured to generate the slice non-GBR downlink limitation information according to the user and the network slice parameters and provide the slice non-GBR downlink limitation information to the SMF.

In some embodiments, the non-GBR data transmission control system further comprises: a user terminal configured to perform any one of the non-GBR data transmission control methods performed by the user terminal.

In the non-GBR data transmission control system, slice non-GBR limiting information is set, and when a session on a network slice is established, rate limitation is carried out on the network slice, so that network slice resources are conveniently and reasonably configured, and the transmission efficiency of non-GBR data streams in the network slice is improved.

According to an aspect of some embodiments of the present disclosure, there is provided a computer readable storage medium having stored thereon computer program instructions which, when executed by a processor, implement the steps of any one of the non-GBR data transmission control methods hereinbefore described.

By executing the instructions on the computer-readable storage medium, the rate limitation can be performed on the network slice when the session on the network slice is established, so that the network slice resources are conveniently and reasonably configured, and the transmission efficiency of the non-GBR data stream in the network slice is improved.

Drawings

The accompanying drawings, which are included to provide a further understanding of the disclosure and are incorporated in and constitute a part of this disclosure, illustrate embodiments of the disclosure and together with the description serve to explain the disclosure and not to limit the disclosure. In the drawings:

fig. 1 is a flow chart of some embodiments of a non-GBR data transmission control method of the present disclosure.

Fig. 2 is a flowchart of another embodiment of a non-GBR data transmission control method according to the present disclosure.

Fig. 3 is a flowchart of further embodiments of the non-GBR data transmission control method according to the present disclosure.

Fig. 4 is a signaling interaction diagram of some embodiments of the non-GBR data transmission control method of the present disclosure.

Fig. 5 is a schematic diagram of some embodiments of a session management function apparatus of the present disclosure.

Fig. 6 is a schematic diagram of some embodiments of a user terminal of the present disclosure.

Figure 7 is a schematic diagram of some embodiments of network elements of the present disclosure.

Figure 8 is a schematic diagram of further embodiments of a network element of the present disclosure.

Fig. 9 is a schematic diagram of some embodiments of a non-GBR data transmission control system of the present disclosure.

Detailed Description

The technical solution of the present disclosure is further described in detail by the accompanying drawings and examples.

The inventor finds that Rate limitation of non-GBR data stream of a terminal exists in the related art, which can be embodied in data Rate limitation of each PDU Session or each User (terminal), and corresponding parameters are Session-AMBR (Aggregate Maximum Bit Rate) and UE (User Element) -AMBR, respectively, but there is no solution of non-GBR data Rate limitation for accessing 5G system network slice.

A flow diagram of some embodiments of the non-GBR data transmission control method of the present disclosure is shown in fig. 1.

In step 101, the SMF obtains slice non-GBR restriction information from a predetermined network element in case that a user terminal initiates establishment of a session on a network slice. In some embodiments, when the terminal initiates a session established on the network slice, a PDU session establishment request on the network slice is sent to the AMF, and the AMF determines that the user terminal initiates establishment of the session on the network slice by triggering the SMF through signaling for initiating establishment of the SM context to the SMF.

In some embodiments, the predetermined network element stores non-GBR limiting parameters for the network slice, the parameters may be generated according to the network slice and the parameters of the user, and the parameters of the network slice and the parameter of the user may include the resource amount and the resource remaining amount of the network slice, and the authority, the payment condition and the like of the user.

In step 102, the SMF limits the data transmission rate on the corresponding network slice according to the slice non-GBR restriction information. In some embodiments, the slice non-GBR restriction information includes slice non-GBR uplink restriction information and slice non-GBR downlink restriction information, and the slice non-GBR uplink restriction information may be notified to the terminal, and the terminal performs uplink speed limitation; and carrying out downlink speed limiting on the SMF.

By the method, slice non-GBR limiting information can be set, and rate limitation is carried out on the network slice when a session on the network slice is established, so that network slice resources are conveniently and reasonably configured, and the transmission efficiency of non-GBR data streams in the network slice is improved.

In some embodiments, the predetermined network element may include a UDM, and the SMF obtains the slice non-GBR uplink restriction information from a process of obtaining the user subscription data from the UDM by sending a user subscription data obtaining request to the UDM. In some embodiments, a Slice-UL-AMBR field may be added to the user subscription data to carry the Slice non-GBR uplink restriction information.

In some embodiments, the predetermined network element may comprise a PCF, and the SMF may control the association request by sending an SM policy control association request to the PCF; and receiving the SM strategy information fed back by the PCF to obtain the slice non-GBR downlink limit information. In some embodiments, a Slice-DL-AMBR field may be newly added in the SM policy information to carry Slice non-GBR downlink restriction information.

In the method, the related nodes and the interactive flow for acquiring the slice non-GBR uplink and downlink limiting information are similar to the rate limitation based on the conversation in the related technology, thereby reducing the influence on the existing protocol and reducing the realization difficulty.

Flow diagrams of further embodiments of non-GBR data transmission control methods of the present disclosure are shown in fig. 2.

In step 201, the SMF receives a create SM context request from the AMF. In some embodiments, the create SM context request includes a user identification and a network slice identification.

In step 202, the SMF determines that the user terminal initiates establishment of a session on the network slice according to the request for creating the SM context, and determines the corresponding user and the network slice. The SMF performs step 213 and step 223. In some embodiments, step 213 and step 223 are performed in no order.

In step 213, the SMF sends a user subscription data acquisition request to the UDM, and proceeds to step 214.

In step 214, the SMF receives the user subscription data fed back by the UDM, where the user subscription data includes a Slice-UL-AMBR field carrying Slice non-GBR uplink restriction information.

In step 223, the SMF sends an SM policy control association request to the PCF, and then performs step 224.

In step 224, the SMF receives SM policy information fed back by the PCF, where the SM policy information includes a Slice-DL-AMBR field carrying Slice non-GBR downlink restriction information.

By the method, the SMF can respectively obtain the slice non-GBR uplink limiting information and the slice non-GBR downlink limiting information from the UDM and the PCF, so that the basis for limiting the uplink and downlink rates on the slice in the uplink and downlink data transmission of the terminal is obtained, and the controllability of the network slice flow is improved.

In some embodiments, as shown in fig. 2, the non-GBR data transmission control method of the present disclosure may further include the steps of:

after obtaining the slice non-GBR uplink restriction information, the SMF performs step 215.

In step 215, the slice non-GBR uplink restriction information is sent to the ue, so that the ue restricts the uplink data transmission rate on the corresponding network slice according to the slice non-GBR uplink restriction information.

After obtaining the slice non-GBR downlink restriction information, the SMF performs step 225.

In step 225, the SMF monitors the downlink data rate of the user plane of the user in the network slice, and compares the downlink data rate of the user plane of the network slice with the downlink constraint information of the slice non-GBR, and if the downlink data rate of the user plane exceeds the downlink constraint parameter, then step 226 is executed.

In step 226, the SMF issues a discard packet command to the UPF to limit the downlink data rate to the slice non-GBR downlink limit information.

By the method, the transmission rate of uplink and downlink data on the network slice can be respectively limited based on slice non-GBR limitation information, the controllability of the network slice is improved, reasonable configuration of network slice resources is facilitated, and the transmission efficiency of non-GBR data streams in the network slice is improved.

In some embodiments, the uplink data transmission rate control operation of the network slice is performed by the user terminal. A flow chart of further embodiments of the non-GBR data transmission control method of the present disclosure is shown in fig. 3.

In step 301, the user terminal obtains slice non-GBR uplink restriction information from the network side, where the SMF obtains the slice non-GBR uplink restriction information and feeds back the information to the user terminal when the user terminal initiates a session on a network slice.

In step 302, the user terminal limits the uplink data transmission rate of the session on the network slice according to the slice non-GBR downlink restriction information. In some embodiments, the user terminal may monitor the data transmission rate of sessions on the network slice; and under the condition that the uplink data transmission rate exceeds the slice non-GBR uplink limitation information, discarding the exceeding uplink data packet.

By the method, the terminal can obtain the slice non-GBR uplink limitation information, and then performs rate limitation on the network slice uplink data flow, so that network slice resources are conveniently and reasonably configured, and the transmission efficiency of the non-GBR data flow in the network slice is improved.

In some embodiments, the user terminal may initiate establishment of a session on the network slice by sending a PDU session establishment request on the network slice of the terminal to the AMF, and obtain slice non-GBR uplink restriction information through an establishment procedure of the session.

By the method, improvement can be performed based on the existing protocol state, and acquisition of slice non-GBR uplink limitation information is performed based on the PDU session establishment process, so that popularization and application are facilitated.

A signaling interaction diagram of some embodiments of the non-GBR data transmission control method of the present disclosure is shown in fig. 4.

In 401, the UE 41 initiates a PDU Session on a certain Network Slice, and sends a PDU Session connection request on the Network Slice to the AMF 42, where the request includes non-GBR Data flow identification, DNN (Data Network Name), and S-NSSAI (Single Network Slice Selection Assistance Information) Information.

In 402-403, AMF 42 interactively establishes an SM Context with SMF 53, including sending a Request Create SM Context Request to the SMF, and receiving a Response Create SM Context Response.

In 404, the SMF 43 acquires slice non-GBR uplink restriction information from the UDM 44.

In 405, the SMF 43 acquires slice non-GBR downlink restriction information from the PCF 45.

In the next PDU session setup procedure, the UDM sends the slice non-GBR uplink restriction information to the terminal for use, so as to restrict the uplink data flow.

By the method, the acquisition of the uplink and downlink limiting information of the non-GBR slice can be carried out based on the PDU session establishment process, the acquisition efficiency of the speed limiting parameter is improved, and the method is based on the existing interactive process and is convenient to popularize and apply.

A schematic diagram of some embodiments of a session management function, SMF, apparatus of the present disclosure is shown in fig. 5.

The speed limit information obtaining unit 501 can obtain slice non-GBR restriction information from a predetermined network element when a user terminal initiates establishment of a session on a network slice. In some embodiments, when the terminal initiates a session established on the network slice, a PDU session establishment request on the network slice is sent to the AMF, and the AMF determines that the user terminal initiates establishment of the session on the network slice by triggering the SMF through signaling for initiating establishment of the SM context to the SMF.

The rate limiting unit 502 can limit the data transmission rate on the corresponding network slice according to the slice non-GBR limitation information. In some embodiments, the slice non-GBR restriction information includes slice non-GBR uplink restriction information and slice non-GBR downlink restriction information, and the slice non-GBR uplink restriction information may be notified to the terminal, and the terminal performs uplink speed limitation; and carrying out downlink speed limit at the network side.

The device can set slice non-GBR limiting information, and carries out rate limitation on the network slice when establishing a session on the network slice, thereby being convenient for reasonably configuring network slice resources and improving the transmission efficiency of non-GBR data streams in the network slice.

In some embodiments, as shown in fig. 5, the rate limiting unit 502 may include a downlink rate limiting subunit 512, configured to monitor a downlink data rate of the user on the user plane of the network slice, perform parameter comparison on the downlink data rate of the user plane of the network slice and the slice non-GBR downlink limiting information, and issue a discard packet instruction to the UPF to limit the downlink data rate to the slice non-GBR downlink limiting information if the downlink data rate of the user plane exceeds the downlink limiting parameter.

The device can limit the transmission rate of downlink data on the network slice based on the slice non-GBR downlink limiting information, improves the controllability of the network slice, is favorable for reasonably configuring network slice resources, and improves the downlink transmission efficiency of non-GBR data streams in the network slice.

In some embodiments, as shown in fig. 5, the rate limiting unit 502 may include an uplink rate limit information sending subunit 522, which is capable of sending the slice non-GBR uplink limit information to the user terminal, so that the user terminal limits the uplink data transmission rate on the corresponding network slice according to the slice non-GBR uplink limit information.

The device can inform the terminal to limit the transmission rate of the uplink data on the network slice based on the slice non-GBR uplink limitation information, improves the controllability of the network slice, is beneficial to reasonably configuring network slice resources and improves the uplink transmission efficiency of non-GBR data streams in the network slice.

In some embodiments, as shown in fig. 5, the SMF device may further include a request obtaining unit 503 capable of receiving a create SM context request from the AMF. In some embodiments, the create SM context request includes a user identification and a network slice identification. The speed limit information obtaining unit 501 determines that the user terminal initiates establishment of a session on a network slice according to the request for creating the SM context, and determines a corresponding user and a network slice.

The device can acquire the slicing non-GBR uplink and downlink limiting information based on the process of establishing the SM context by the AMF request, improves the efficiency of acquiring the speed limiting parameter, and is convenient to popularize and apply based on the existing interactive process.

A schematic diagram of some embodiments of a user terminal of the present disclosure is shown in fig. 6.

Uplink restriction information obtaining unit 601 can obtain slice non-GBR uplink restriction information from the network side, where the SMF obtains the slice non-GBR uplink restriction information and feeds back the information to the user terminal when the user terminal initiates a session on a network slice.

The upstream speed limitation unit 602 can limit the upstream data transmission rate of a session on a network slice according to the slice non-GBR downstream limitation information. In some embodiments, the user terminal may monitor the data transmission rate of sessions on the network slice; and under the condition that the uplink data transmission rate exceeds the slice non-GBR uplink limitation information, discarding the exceeding uplink data packet.

The terminal can obtain slice non-GBR uplink limitation information, and then carries out rate limitation on network slice uplink data streams, so that network slice resources are conveniently and reasonably configured, and the transmission efficiency of the non-GBR data streams in the network slices is improved.

In some embodiments, as shown in fig. 6, the terminal may further include a session initiation unit 603, which is capable of initiating establishment of a session on a network slice by sending a PDU session establishment request on the network slice of the terminal to the AMF, and obtaining slice non-GBR uplink restriction information through an establishment procedure of the session. The terminal can be improved based on the existing protocol state, and the acquisition of the slice non-GBR uplink limitation information is carried out based on the PDU session establishment process, so that the popularization and the application are facilitated.

A schematic structural diagram of an embodiment of a network element of the present disclosure is shown in fig. 7. The network element may be an SMF device, or a user terminal, comprising a memory 701 and a processor 702. Wherein: the memory 701 may be a magnetic disk, flash memory, or any other non-volatile storage medium. The memory is for storing instructions in the above corresponding embodiments of the non-GBR data transmission control method. Processor 702 is coupled to memory 701 and may be implemented as one or more integrated circuits, such as a microprocessor or microcontroller. The processor 702 is configured to execute the instructions stored in the memory, so as to facilitate reasonable configuration of network slice resources and improve transmission efficiency of non-GBR data streams in the network slice.

In one embodiment, as also shown in fig. 8, a network element 800 includes a memory 801 and a processor 802. The processor 802 is coupled to the memory 801 by a BUS 803. The network element 800 may also be coupled to an external storage 805 via a storage interface 804 to facilitate retrieval of external data, and may also be coupled to a network or another computer system (not shown) via a network interface 806. And will not be described in detail herein.

In the embodiment, the data instruction is stored in the memory, and the instruction is processed by the processor, so that network slice resources can be conveniently and reasonably configured, and the transmission efficiency of non-GBR data streams in the network slices is improved.

In another embodiment, a computer readable storage medium has stored thereon computer program instructions which, when executed by a processor, implement the steps of the method in the corresponding embodiment of the non-GBR data transmission control method. As will be appreciated by one skilled in the art, 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, and the like) having computer-usable program code embodied therein.

A schematic diagram of some embodiments of the non-GBR data transmission control system of the present disclosure is shown in fig. 9. The non-GBR data transmission control system may include the SMF 91, UDM 92, and PCF 93.

The SMF 91, which may be any one of the SMF devices mentioned above, is capable of executing any one of the non-GBR data transmission control methods executed by the SMF mentioned above.

And the UDM 92 can generate slice non-GBR uplink limitation information according to the user and the network slice parameters and provide the slice non-GBR uplink limitation information to the SMF.

The PCF 93, based on the user and network slicing parameters, can generate slicing non-GBR downlink restriction information and provide it to the SMF.

In the non-GBR data transmission control system, slice non-GBR limiting information is set, and when a session on a network slice is established, rate limitation is carried out on the network slice, so that network slice resources are conveniently and reasonably configured, and the transmission efficiency of non-GBR data streams in the network slice is improved.

In some embodiments, the non-GBR data transmission control system may further comprise a user terminal 94 capable of performing any of the non-GBR data transmission control methods performed by the user terminal.

In the system, the terminal can aim at the rate limit of the network slice uplink data flow based on the obtained slice non-GBR uplink limit information, thereby being convenient for reasonably configuring network slice resources and improving the transmission efficiency of the non-GBR data flow in the network slice.

The present disclosure is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems) and computer program products according to embodiments of the disclosure. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.

These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

Thus far, the present disclosure has been described in detail. Some details that are well known in the art have not been described in order to avoid obscuring the concepts of the present disclosure. It will be fully apparent to those skilled in the art from the foregoing description how to practice the presently disclosed embodiments.

The methods and apparatus of the present disclosure may be implemented in a number of ways. For example, the methods and apparatus of the present disclosure may be implemented by software, hardware, firmware, or any combination of software, hardware, and firmware. The above-described order for the steps of the method is for illustration only, and the steps of the method of the present disclosure are not limited to the order specifically described above unless specifically stated otherwise. Further, in some embodiments, the present disclosure may also be embodied as programs recorded in a recording medium, the programs including machine-readable instructions for implementing the methods according to the present disclosure. Thus, the present disclosure also covers a recording medium storing a program for executing the method according to the present disclosure.

Finally, it should be noted that: the above examples are intended only to illustrate the technical solutions of the present disclosure and not to limit them; although the present disclosure has been described in detail with reference to preferred embodiments, those of ordinary skill in the art will understand that: modifications to the specific embodiments of the disclosure or equivalent substitutions for parts of the technical features may still be made; all such modifications are intended to be included within the scope of the claims of this disclosure without departing from the spirit thereof.