CN111436077B

CN111436077B - Service establishment method, entity, device and medium

Info

Publication number: CN111436077B
Application number: CN201910032044.5A
Authority: CN
Inventors: 郭雅莉
Original assignee: Datang Mobile Communications Equipment Co Ltd
Current assignee: Datang Mobile Communications Equipment Co Ltd
Priority date: 2019-01-14
Filing date: 2019-01-14
Publication date: 2023-05-12
Anticipated expiration: 2039-01-14
Also published as: CN111436077A

Abstract

The invention discloses a service establishment method, an entity, a device and a medium, comprising the following steps: PCF determines PCC rule corresponding to service to be established, wherein the PCC rule comprises establishment maintaining indication, and the establishment maintaining indication is used for admitting the service establishment no matter whether air interface resources meet service QoS requirements or not; and sending the PCC rule to the SMF. The SMF sends the setup hold indication and QFI of the QoS flow to the AN. And the AN establishes service and feeds back the successful establishment of the QoS flow to the SMF. By adopting the invention, the AN establishes the service after receiving the indication even if the radio resource is insufficient to ensure the GBR requirement of the service. The method can ensure that the GBR type service is successfully established, so that the risk of network signaling storm can be reduced, and the service can be quickly recovered when the radio resource can ensure the GBR, thereby improving the timeliness of service support.

Description

Service establishment method, entity, device and medium

Technical Field

The present invention relates to the field of wireless communications technologies, and in particular, to a service establishment method, an entity, an apparatus, and a medium.

Background

Fig. 1 is a schematic diagram of a next gen Network architecture, where a UPF (User Plane Function ) is a User plane anchor point, AN AMF (Access and Mobility Management Function, mobility management function), AN SMF (Session Management Function ) is a control plane Network node, the AMF is responsible for mobility management and is connected to a UE (User Equipment) and AN (Access Network), the SMF is responsible for session management, is connected to the UPF, and the PCF (Policy Control Function, policy management function) is responsible for policy control, as shown in the figure.

The SMF receives PCC (policy and charging control ) rules at SDF (service data flow, traffic data flow) level from the PCF, including QoS (Quality of service ) requirements for the traffic data flow, such as 5QI (5G QoS Indicator,5G QoS indication) and ARP (Allocation and Retention Priority ), and GBR (Guaranteed Bit Rate, guaranteed bit rate) for traffic requiring guaranteed bit rate. The SMF aggregates the different PCC rules according to 5QI and ARP, aggregates the PCC rules with the same 5QI and ARP to the same QoS flow, and for the traffic data flow of GBR, the GFBR (Guaranteed Flow Bit Rate, flow guaranteed bit rate) of the aggregated QoS flow is the GBR sum of the SDFs aggregated to the QoS flow. The SMF sends the QoS requirement (such as 5QI, ARP, GFBR for GBR QoS flow) of the aggregated QoS flow to the AN, the AN allocates wireless resource for the QoS flow according to the received QoS requirement, and the data is ensured to be transmitted according to the required service quality.

The prior art has the following defects: for GBR type QoS flows, the success of the QoS flow establishment cannot be guaranteed.

Disclosure of Invention

The invention provides a service establishment method, a service establishment entity, a service establishment device and a service establishment medium, which are used for ensuring successful establishment of a service.

The embodiment of the invention provides a service establishment method, which comprises the following steps:

determining a PCC rule corresponding to a service to be established, wherein the PCC rule comprises a first establishment maintaining instruction, and the first establishment maintaining instruction is to accept the service establishment no matter whether an air interface resource meets the service QoS requirement;

and sending the PCC rule to the SMF.

In practice, the traffic is GBR type traffic;

the PCC rule comprises a first GBR requirement for establishing a retention instruction and a service;

the first establishment maintaining indication refers to that whether the air interface resource meets the GBR requirement of the service or not is admitted to the service establishment, and the resource is allocated to the service until the GBR requirement of the service is met.

In implementation, the PCC rule further includes one or a combination of the following parameters:

the method comprises the steps of data packet transmission delay, bit error rate, monitoring indication of the data packet transmission delay, monitoring indication of the bit error rate, monitoring time window of the data packet transmission delay and time window of the statistic bit error rate.

In practice, further comprising:

and receiving a notice sent by the SMF, wherein the notice is sent after the SMF receives the notice of the AN, and the notice is sent when the transmission delay and/or the error rate of the data packet actually transmitted exceed the requirements of the SMF configuration by the AN.

In practice, further comprising:

and receiving the GBR requirement of the service, which is fed back by the SMF to the PCF, which is successfully established but not guaranteed, or the GBR requirement of the service, which is fed back to the PCF, which is successfully established and guaranteed.

In practice, further comprising:

and receiving the GBR requirement of the guaranteed service fed back by the SMF to the PCF.

In practice, further comprising:

and sending a cancel instruction to the SMF to cancel the first establishment maintaining instruction.

receiving PCC rules sent by PCF, wherein the PCC rules comprise a first establishment maintaining instruction, and the first establishment maintaining instruction is used for admitting the service establishment no matter whether the air interface resource meets the service QoS requirement;

binding the PCC rule to a QoS flow, determining an identifier QFI of the QoS flow, and generating a second establishment maintaining instruction according to the first establishment maintaining instruction, wherein the second establishment maintaining instruction is used for admitting the establishment of the QoS flow no matter whether an air interface resource meets the QoS requirement of the QoS flow or not;

and sending the second establishment maintaining instruction and the QFI of the QoS flow to AN AN.

In practice, the traffic is GBR type traffic;

The first establishment maintaining indication refers to that whether the air interface resource meets the GBR requirement of the service or not is admitted to the service establishment, and resources are allocated to the service until the GBR requirement of the service is met;

the second establishment maintenance indication refers to whether the GFBR of the QoS flow is satisfied by the air interface resource or not, and the GFBR of the QoS flow is admitted to the QoS flow and allocated resources until the QoS flow is satisfied.

In implementation, the binding the PCC rule to a QoS flow includes binding PCC rules having the same QoS attributes and the set-up hold indication in the PCC rules to a QoS flow; the SMF determines GFBR of the QoS flow according to GBR in PCC rule bound to the QoS flow;

the sending the second setup hold indication and the QFI of the QoS flow to the AN includes sending the GFBR of the QoS flow, the second setup hold indication and the QFI of the QoS flow to the AN.

the method comprises the steps of data packet transmission delay, bit error rate, monitoring indication of the data packet transmission delay, monitoring indication of the bit error rate, monitoring a time window of the data packet transmission delay and counting a time window of the bit error rate;

when the second establishment maintaining indication and the QFI of the QoS flow are sent to the AN, one or a combination of the following parameters are sent to the AN:

In practice, one or a combination of the following parameters are included in the indication of SMF: the method further comprises the steps of:

and the receiving AN notifies the SMF when the transmission delay and/or the error rate of the actually transmitted data packet exceed the requirements of the SMF configuration, and notifies the PCF.

In practice, further comprising:

and feeding back to the PCF the GBR requirement of the service which is successfully established but not guaranteed, or feeding back to the PCF the GBR requirement of the service which is successfully established and guaranteed according to the feedback of the AN.

In practice, further comprising:

and feeding back the GBR requirement of the guaranteed service to the PCF according to the feedback of the AN.

In practice, further comprising:

after receiving the cancel instruction sent by the PCF to the SMF, instructs the AN to cancel the second set-up hold instruction.

Receiving a second establishment maintaining instruction and QFI of a QoS flow sent by an SMF, wherein the second establishment maintaining instruction is used for admitting the QoS flow establishment whether an air interface resource meets the QoS requirement of the QoS flow or not;

and establishing service, and feeding back the successful establishment of the QoS flow to the SMF.

In practice, the QoS flow is a GBR type QoS flow;

the second establishment maintenance instruction sent by the SMF and QFI of the QoS flow are received, and the QFI further comprises GFBR of the QoS flow sent by the SMF is received;

the second establishment maintaining indication refers to that whether the air interface resource meets the GFBR of the QoS flow or not, the GFBR of the QoS flow is admitted to the establishment of the QoS flow, and resources are allocated for the QoS flow until the GFBR of the QoS flow is met;

the step of feeding back the successful establishment of the QoS flow to the SMF comprises feeding back the successful establishment of the QoS flow to the SMF but not guaranteeing the GFBR of the QoS flow if the wireless resource is insufficient to guarantee the GFBR of the QoS flow, and feeding back the successful establishment of the QoS flow to the SMF and guaranteeing the GFBR of the QoS flow if the wireless resource is sufficient to guarantee the GFBR of the QoS flow.

In practice, further comprising:

when the AN successfully allocates sufficient radio resources to guarantee GFBR for QoS flows, the GFBR is guaranteed back to the SMF.

In implementation, the receiving the second establishment maintenance indication and the QFI of the QoS flow sent by the SMF further includes receiving one or a combination of the following parameters sent by the SMF: the method comprises the steps of data packet transmission delay, bit error rate, monitoring indication of the data packet transmission delay, monitoring indication of the bit error rate, monitoring a time window of the data packet transmission delay and counting a time window of the bit error rate;

And monitoring the corresponding data packet transmission delay and/or error rate of the QoS stream according to the monitoring indication of the data packet transmission delay and/or the monitoring indication of the error rate, the time window for monitoring the data packet transmission delay and/or the time window for counting the error rate, and notifying the SMF when the actually transmitted data packet transmission delay and/or error rate exceeds the SMF configuration requirement.

In practice, further comprising:

and after receiving AN instruction of canceling the second establishment and maintenance instruction sent by the SMF to the AN, canceling to execute the second establishment and maintenance instruction.

The embodiment of the invention provides a PCF entity, which comprises the following steps:

a processor for reading the program in the memory, performing the following process:

a transceiver for receiving and transmitting data under the control of the processor, performing the following:

and sending the PCC rule to the SMF.

In practice, the traffic is GBR type traffic;

In practice, further comprising:

The embodiment of the invention provides an SMF entity, which comprises the following components:

determining a PCC rule sent by a received PCF, wherein the PCC rule comprises a first establishment maintaining instruction, and the first establishment maintaining instruction is used for admitting the service establishment no matter whether an air interface resource meets the service QoS requirement or not;

receiving PCC rules sent by PCF;

In practice, the traffic is GBR type traffic;

In practice, further comprising:

The embodiment of the invention provides AN AN entity, which comprises the following steps:

data processing is carried out according to the requirements of the transceiver;

In practice, the QoS flow is a GBR type QoS flow;

In practice, further comprising:

The embodiment of the invention provides a service establishment device, which comprises:

a rule determining module, configured to determine a PCC rule corresponding to a service to be established, where the PCC rule includes a first establishment maintenance indication, where the first establishment maintenance indication refers to admitting the service establishment regardless of whether an air interface resource meets a service QoS requirement;

and the first sending module is used for sending the PCC rule to the SMF.

a first receiving module, configured to receive a PCC rule sent by a PCF, where the PCC rule includes a first establishment maintenance indication, where the first establishment maintenance indication refers to admitting the service establishment regardless of whether an air interface resource meets a service QoS requirement;

A rule processing module, configured to bind the PCC rule to a QoS flow, determine an identifier QFI of the QoS flow, and generate a second establishment maintenance indication according to the first establishment maintenance indication, where the second establishment maintenance indication refers to that whether an air interface resource meets a QoS requirement of the QoS flow or not is admitted to the QoS flow;

and the second sending module is used for sending the second establishment maintaining instruction and the QFI of the QoS flow to AN.

a second receiving module, configured to receive a second establishment maintenance indication sent by the SMF and a QFI of the QoS flow, where the second establishment maintenance indication refers to that whether an air interface resource meets a QoS requirement of the QoS flow or not is admitted to the QoS flow establishment;

and the service module is used for establishing service and feeding back the successful establishment of the QoS flow to the SMF.

In an embodiment of the present invention, a computer-readable storage medium is provided, in which a computer program for executing the above-described service establishment method is stored.

The invention has the following beneficial effects:

in the technical scheme provided by the embodiment of the invention, because PCF initiates the service, the PCC rule corresponding to the service indicates AN to accept the service establishment no matter whether the air interface resource meets the service QoS requirement after receiving the indication; and the AN, upon receiving the indication, establishes the service even if the radio resources are insufficient to guarantee the GBR requirements of the service. The method can ensure that the GBR type service is successfully established, so that the risk of network signaling storm can be reduced, and the service can be quickly recovered when the radio resource can ensure the GBR, thereby improving the timeliness of service support.

Drawings

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

FIG. 1 is a diagram of a NextGen network architecture in the background;

fig. 2 is a schematic diagram of an implementation flow of a PCF side service establishment method in an embodiment of the present invention;

fig. 3 is a schematic diagram of an implementation flow of an SMF side service establishment method in an embodiment of the present invention;

fig. 4 is a schematic flow chart of AN implementation of a method for establishing AN service in AN embodiment of the present invention;

fig. 5 is a schematic diagram of a service establishment implementation flow in embodiment 1 of the present invention;

fig. 6 is a schematic diagram of a service establishment implementation flow in embodiment 2 of the present invention;

FIG. 7 is a diagram of a PCF entity structure in accordance with an embodiment of the present invention;

fig. 8 is a schematic diagram of an SMF entity structure according to an embodiment of the present invention;

fig. 9 is a schematic diagram of AN entity structure of AN embodiment of the present invention.

Detailed Description

The inventors noted during the course of the invention that:

for a QoS flow of GBR type, during the QoS flow establishment procedure, if the AN cannot allocate enough radio resources to satisfy the GFBR of the QoS flow, the AN denies the establishment of the QoS flow. For an established GBR type QoS flow, when the UE moves from one base station to another to switch, the target base station does not establish the QoS flow if the target base station cannot allocate enough radio resources to meet the GFBR for the QoS flow. In these cases, if the UE still wants to continue using the service, it repeatedly tries to establish the corresponding QoS flow until the base station side has enough radio resources so that the QoS flow can be established successfully.

For a QoS flow of GBR type, the AN refuses the establishment of this QoS flow in the prior art if the AN cannot allocate enough radio resources to meet the GFBR of the QoS flow. If the UE still wishes to continue using this service, it repeatedly tries to establish the corresponding QoS flow until the base station side has enough radio resources to successfully establish the QoS flow. The repeated attempt introduces a large amount of control plane signaling interaction, increases the risk of network signaling storm, and because the condition of wireless resources changes rapidly, the repeated attempt to establish the QoS flow always needs to be repeated once at intervals, and the current mechanism is not beneficial to quickly establishing the corresponding QoS flow when the wireless resources can ensure the GFBR, and has poor timeliness support for the service.

Based on this, the technical solution provided by the embodiment of the present invention will solve the problem that in the prior art for GBR type services, if sufficient radio resources cannot be allocated, service establishment will be refused, and if the UE still wants to continue to use the service, it will be repeatedly tried to re-establish a large amount of introduced control plane signaling interactions, so that the risk of network signaling storm can be reduced, and the service can be quickly restored when the radio resources can guarantee GBR, thereby improving the timeliness for service support.

The following describes specific embodiments of the present invention with reference to the drawings.

In the description, the PCF, SMF, and AN-side implementations will be described separately, and then AN example of a coordinated implementation of the three will be given to better understand the implementation of the solution given in the embodiment of the present invention. Such AN explanation does not mean that the three should be implemented in combination or should be implemented separately, and in fact, when PCF, SMF, and AN are implemented separately, the problems of PCF, SMF, and AN are solved, respectively, and when the three are used in combination, a better technical effect is obtained.

Fig. 2 is a schematic flow chart of an implementation of a PCF side service establishment method, as shown in the figure, may include:

step 201, determining a PCC rule corresponding to a service to be established, where the PCC rule includes a first establishment maintenance indication, where the first establishment maintenance indication refers to admitting the service establishment no matter whether an air interface resource meets a service QoS requirement;

step 202, sending the PCC rule to an SMF.

In implementation, when determining the PCC rule corresponding to the service, the determining may be performed when the service is initiated; typically the service may be triggered from an application, for example by an application requesting initiation of a set-up service, resulting in a service to be set up, but in practice other ways of triggering or triggering based on internal state changes may also employ the present solution.

In practice, the traffic is GBR type traffic;

That is, when a GBR type service is initiated, determining a PCC rule corresponding to the service in the PCF, where the PCC rule includes AN establishment and maintenance indication and a GBR requirement of the service, where the establishment and maintenance indication refers to that after receiving the indication, the AN admits that the service is established, and allocates resources for the service until the GBR requirement of the service is satisfied; and sending the PCC rule to the SMF.

I.e. a QoS requirement comprising at least a data packet transmission delay and/or a bit error rate, a monitoring indication of a QoS requirement comprising at least a data packet transmission delay and/or a bit error rate, a time window for monitoring a data packet transmission delay and/or a time window for counting a bit error rate, etc.

In practice, the method may further comprise:

Specifically, it may be that the establishment of the QoS flow fed back to the PCF by the SMF is received but the GBR requirement of the service is not guaranteed, or the establishment of the QoS flow fed back to the PCF is successful and the GBR requirement of the service is guaranteed.

In practice, the method may further comprise:

Fig. 3 is a schematic flow chart of an implementation of an SMF side service establishment method, and as shown in the drawing, may include:

step 301, receiving a PCC rule sent by a PCF, where the PCC rule includes a first establishment maintenance indication, where the first establishment maintenance indication refers to admitting the service establishment no matter whether an air interface resource meets a service QoS requirement;

Step 302, binding the PCC rule to a QoS flow, determining an identifier QFI of the QoS flow, and generating a second establishment maintenance indication according to the first establishment maintenance indication, where the second establishment maintenance indication refers to that whether an air interface resource meets a QoS requirement of the QoS flow or not is admitted to the QoS flow;

step 303, the second establishment maintenance indication and the QFI of the QoS flow are sent to AN.

In practice, the traffic is GBR type traffic;

In practice, the method may further comprise:

said binding said PCC rules to QoS flows includes binding PCC rules having the same QoS attributes and said set-up hold indication of PCC rules to a QoS flow; the SMF determines GFBR of the QoS flow according to GBR in PCC rule bound to the QoS flow;

In practice, one or a combination of the following parameters are included in the indication of SMF: the method may further include the steps of:

In practice, the method may further comprise:

Fig. 4 is a schematic flow chart of AN implementation of a service establishment method at AN side, and as shown in the drawing, may include:

step 401, receiving a second establishment maintenance instruction and a QFI of the QoS flow sent by the SMF, where the second establishment maintenance instruction refers to admitting the QoS flow establishment regardless of whether an air interface resource meets a QoS requirement of the QoS flow;

and step 402, establishing service, and feeding back the successful establishment of the QoS flow to the SMF.

In practice, the QoS flow is a GBR type QoS flow;

In practice, the method may further comprise:

For a better understanding of the relationship between PCF, SMF, AN, a brief description will be given below of the interaction relationship between the three.

The PCF sends PCC rules to the SMF including a set-up hold indication, meaning that traffic set-up is admitted even if radio resources are insufficient to satisfy GBR of traffic, and service GBR information, and strives to allocate resources until GBR of traffic is satisfied.

Further, the SMF binds PCC rules with the same QoS attributes and a set-up hold indication in the PCC rules to one QoS flow, the SMF determines the GFBR of the QoS flow according to the GBR in the PCC rules bound to this QoS flow, and assigns the QFI to this QoS flow, and the SMF sends the GFBR of the QFI and the set-up hold indication to the AN together.

Furthermore, the PCC rule may further include QoS requirements such as packet transmission delay, bit error rate, etc., and monitoring indication of QoS parameters such as packet transmission delay or bit error rate, etc., and include a time window for monitoring packet transmission delay, and/or a time window for counting bit error rate. The monitoring indication may indicate that the data packet transmission delay is monitored and/or the error rate is monitored, and the time window for monitoring the data packet transmission delay and the time window for monitoring the error rate may be the same time window or different independent time windows.

The SMF binds the PCC rules with the same QoS attribute and the establishment maintaining indication and the monitoring indication in the PCC rules to one QoS flow, the SMF determines the GFBR of the QoS flow according to the GBR in the PCC rules bound to the QoS flow, determines the data packet transmission delay and the error rate of the QoS flow according to the QoS requirements such as the data packet transmission delay and the error rate in the PCC rules bound to the QoS flow, and distributes QFI to the QoS flow, and then the SMF sends the GFBR of the QFI and the QoS flow, the establishment maintaining indication, the data packet transmission delay, the error rate, the monitoring indication of the data packet transmission delay, the monitoring indication of the error rate, the time window for monitoring the data packet transmission delay and the time window for counting the error rate to the AN together.

When the AN establishes the QoS flow, if the wireless resource is insufficient to ensure the GFBR of the QoS flow, the AN still establishes the QoS flow and feeds back the GFBR which is successfully established but not ensured to the QoS flow to the SMF, and the SMF further feeds back the GBR which is successfully established but not ensured to the PCF.

Further, when the AN successfully allocates sufficient radio resources to ensure GFBR of QoS flow, the AN notifies the SMF that GFBR is ensured, and the SMF further notifies the PCF that traffic GBR is ensured.

Further, the PCF may send a cancel indication to the SMF to cancel the previously sent setup hold indication.

Further, the AN monitors the corresponding data packet transmission delay and error rate for the QoS flow according to the monitoring indication and the monitoring time window, and notifies the SMF when the data packet transmission delay and error rate actually transmitted exceeds the corresponding requirements of the SMF configuration, and notifies the PCF by the SMF.

As can be seen from the foregoing, in the technical solution provided in the embodiment of the present invention, when a service needs to be established, the PCF sends a PCC rule corresponding to the service to the SMF, where the PCC rule includes a maintenance instruction and a guaranteed bit rate GBR requirement of the service, and may further include a packet transmission delay, an error rate requirement, a monitoring instruction for QoS parameters such as a packet transmission delay or an error rate, and a time window for monitoring the packet transmission delay and/or a time window for counting the error rate.

The meaning of the establishment of the hold indication is to admit the service establishment even if the radio resources are insufficient to meet the QoS requirements of the service and to strive to allocate resources until the QoS requirements of the service are met.

The monitoring indication may indicate to monitor the transmission delay of the data packet and/or to monitor the bit error rate.

The subsequent PCF may also send a cancel indication to the SMF to cancel the previously sent setup hold indication.

After receiving PCC rules sent by PCF, SMF establishes and maintains the same QoS attribute and establishment in PCC rules;

optionally, the method may further include that the PCC rule indicated by the monitoring is bound to one QoS flow, the SMF determines the QoS requirement of the QoS flow according to the service QoS requirement in the PCC rule bound to the QoS flow, and allocates QFI to the QoS flow, and the SMF establishes the QFI and the QoS requirement of the QoS flow and the maintenance indication;

optionally, the method further comprises the steps of sending the data packet transmission delay, the error rate, the monitoring indication of the data packet transmission delay, the monitoring indication of the error rate, the time window for monitoring the data packet transmission delay and the time window for counting the error rate to the AN together.

When the AN establishes the QoS flow, if the radio resource is insufficient to meet the QoS requirement of the QoS flow, the AN still establishes the QoS flow and feeds back to the SMF that the QoS flow is successfully established but the QoS requirement is not met, and the SMF further feeds back to the PCF that the service is successfully established but the QoS requirement is not met.

When the AN successfully allocates enough radio resources to meet the QoS requirements of the QoS flow, the AN informs the SMF that the QoS requirements have been met, and the SMF further informs the PCF that the QoS requirements have been met.

The AN can monitor the corresponding data packet transmission delay and error rate of the QoS flow according to the monitoring indication and the monitoring time window, and notify the SMF when the data packet transmission delay and error rate actually transmitted exceeds the corresponding requirements of the SMF configuration, and notify the PCF by the SMF.

The following is illustrated by way of example.

Example 1

In this embodiment, when a service needs to be established, the PCF sends a PCC rule corresponding to the service to the SMF, where the PCC rule includes an establishment maintenance indication and GBR information of the service. The meaning of the establishment of the hold indication is to admit the traffic establishment even if the radio resources are insufficient to satisfy the GBR of the traffic and to strive to allocate resources until the GBR of the traffic is satisfied.

After the SMF receives the PCC rule sent by the PCF, the PCC rule with the same QoS attribute and the establishment maintaining instruction in the PCC rule is bound to one QoS flow, the SMF determines the GFBR of the QoS flow according to the GBR in the PCC rule bound to the QoS flow, and distributes QFI to the QoS flow, and when the SMF sends the GFBR of the QFI and the establishment maintaining instruction of the QoS flow to the AN, and the AN establishes the QoS flow, if the wireless resource is insufficient to satisfy the GFBR of the QoS flow, the AN still establishes the QoS flow and feeds back to the SMF that the QoS flow is successfully established but the GFBR is not satisfied, and the SMF further feeds back to the PCF that the service establishment is successful but the GBR of the service is not satisfied.

When the AN successfully allocates sufficient radio resources to satisfy the GFBR of the QoS flow, the AN notifies the SMF that the GFBR has been satisfied, and the SMF further notifies the PCF that the traffic GBR has been satisfied.

Fig. 5 is a schematic diagram of a service establishment implementation flow in embodiment 1, and as shown in the drawing, may include:

in step 501, the pcf sends the PCC rule corresponding to the service to the SMF.

When the service is initiated, PCF sends PCC rule corresponding to the service to SMF, wherein the PCC rule comprises GBR information for establishing the retention instruction and the service. The meaning of the establishment of the hold indication is to admit the traffic establishment even if the radio resources are insufficient to satisfy the GBR of the traffic and to strive to allocate resources until the GBR of the traffic is satisfied.

Step 502, traffic is aggregated to QoS flow.

After the SMF receives the PCC rule sent by the PCF, binds the PCC rule having the same QoS attribute, including, for example, but not limited to, the same 5qi, arp, and establishing a retention indication, to one QoS flow, the SMF determines the GFBR of the QoS flow based on the GBR in the PCC rule bound to the QoS flow, for example, takes the sum of all GBRs bound to the QoS flow as the GFBR of the QoS flow, and assigns QFI to the QoS flow.

In step 503, the smf sends the QFI together with the GFBR of the QoS flow, the setup hold indication to the AN.

In step 504, the an allocates radio resources for the QoS flow based on the information received from the SMF.

In step 505, if the AN cannot allocate enough radio resources to guarantee the GFBR of the QoS flow, the AN still establishes the QoS flow according to the establishment maintenance indication received in step 503.

The an feeds back to the SMF that the QoS flow was established successfully but that the GFBR for this QoS flow cannot be guaranteed, step 506.

In step 507, the feedback PCC rule is executed successfully but the service GBR is not guaranteed.

For PCC rules bound to this QoS flow, the SMF further feeds back to the PCF that the PCC rule has performed a successful GBR but does not guarantee the corresponding traffic. Here, the SMF may include the information that the PCC rule is successfully executed and the service GBR is not guaranteed in one message, or may feedback that the PCC rule is successfully executed at any time between the step 501 and the step 507, and then feedback the information that the service GBR is not guaranteed alone in the step 507.

Step 508, after step 505, the AN continues to attempt to allocate radio resources for the QoS flow until the AN successfully allocates enough radio resources to satisfy the GFBR for the QoS flow.

In step 509, the an informs the SMF that the GFBR for the QoS flow can be guaranteed.

Step 510, the smf further informs the PCF that GBR for the corresponding service has been satisfied.

In particular implementations, the PCF may also send a cancel indication to the SMF at any time to cancel the previously sent setup hold indication, and the SMF may also send a cancel indication to the AN at any time to cancel the previously sent setup hold indication for the corresponding QoS flow.

In the process that the UE moves and is switched from the source AN to the target AN, the source AN can send AN establishment maintaining instruction corresponding to the QoS flow to the target AN, the target AN still establishes the QoS flow according to the instruction even if GFBR which can not allocate enough wireless resources to ensure the QoS flow, and continues to try to allocate the wireless resources to the QoS flow until the GFBR of the QoS flow is met.

Example 2

In this embodiment, when a service is initiated, the PCF sends a PCC rule corresponding to the service to the SMF, where the PCC rule includes a set-up maintenance indication and GBR information of the service, and includes QoS requirements such as a data packet transmission delay, an error rate, and the like, and a monitoring indication of QoS parameters such as a data packet transmission delay or an error rate, and includes a time window for monitoring the data packet transmission delay and/or a time window for counting the error rate.

The meaning of the establishment of the hold indication is to admit the traffic establishment even if the radio resources are insufficient to satisfy the GBR of the traffic and to strive to allocate resources until the GBR of the traffic is satisfied.

The monitoring indication may indicate that the data packet transmission delay is monitored and/or the error rate is monitored, and the time window for monitoring the data packet transmission delay and the time window for monitoring the error rate may be the same time window or different independent time windows.

After the SMF receives the PCC rule sent by the PCF, binds the PCC rule having the same QoS attribute and the establishment maintaining indication and the monitoring indication in the PCC rule to one QoS flow, the SMF determines the GFBR of the QoS flow according to the GBR in the PCC rule bound to the QoS flow, determines the data packet transmission delay and the error rate of the QoS flow according to the QoS requirements such as the data packet transmission delay and the error rate in the PCC rule bound to the QoS flow, and distributes the QFI to the QoS flow, and the SMF sends the QFI and the GFBR of the QoS flow, the establishment maintaining indication, the data packet transmission delay, the error rate, the monitoring indication of the data packet transmission delay, the monitoring indication of the error rate, the time window for monitoring the data packet transmission delay, and the time window for counting the error rate to the AN together.

When the AN establishes the QoS flow, if the radio resource is insufficient to satisfy the GFBR of the QoS flow, the AN still establishes the QoS flow and feeds back to the SMF that the QoS flow is successfully established but the GFBR is not satisfied, and the SMF further feeds back to the PCF that the service is successfully established but the GBR of the service is not satisfied.

The AN monitors the corresponding data packet transmission delay and error rate of the QoS flow according to the monitoring indication and the monitoring time window, and notifies the SMF when the data packet transmission delay and error rate of the actual transmission exceeds the corresponding requirements of the SMF configuration, and the SMF notifies the PCF.

Fig. 6 is a schematic diagram of a service establishment implementation flow in embodiment 2, and as shown in the drawing, may include:

in step 601, the pcf sends the PCC rule corresponding to the service to the SMF.

When the service is initiated, PCF sends PCC rule corresponding to the service to SMF, wherein the PCC rule comprises the establishment maintaining instruction and GBR information of the service, and also comprises QoS requirements such as data packet transmission delay, bit error rate and the like, and monitoring instructions for QoS parameters such as data packet transmission delay or bit error rate and the like, and comprises a time window for monitoring the data packet transmission delay and/or a time window for counting the bit error rate. The meaning of the establishment of the hold indication is to admit the traffic establishment even if the radio resources are insufficient to satisfy the GBR of the traffic and to strive to allocate resources until the GBR of the traffic is satisfied. The monitoring indication may indicate that the data packet transmission delay is monitored and/or the error rate is monitored, and the time window for monitoring the data packet transmission delay and the time window for monitoring the error rate may be the same time window or different independent time windows.

In step 602, traffic is aggregated to QoS flow.

After the SMF receives the PCC rule sent by the PCF, the SMF binds the PCC rule having the same QoS attribute, including, for example, but not limited to, the same 5qi, arp, and the PCC rule with the set-up hold indication and the set-up monitor indication, to one QoS flow, determines the GFBR of the QoS flow according to the GBR in the PCC rule bound to the QoS flow, for example, uses the sum of all GBRs bound to the QoS flow as the GFBR of the QoS flow, determines the packet transmission delay and the bit error rate of the QoS flow according to the QoS requirements, such as the packet transmission delay and the bit error rate, in the PCC rule bound to the QoS flow, for example, uses the packet transmission delay and the bit error rate in the PCC rule bound to the QoS flow as the packet transmission delay and the bit error rate of the QoS flow, and assigns the QFI to the QoS flow.

In step 603, the smf sends the GFBR of the QFI and the QoS flow, the set-up hold indication, the packet transmission delay, the bit error rate, the monitoring indication of the packet transmission delay, the monitoring indication of the bit error rate, the time window for monitoring the packet transmission delay, and the time window for counting the bit error rate to the AN.

The monitoring indication may include a monitoring indication of the transmission delay of the data packet, a monitoring indication of the bit error rate, or both. The time window for monitoring the transmission delay of the data packet and the time window for monitoring the error rate can be the same time window or different independent time windows.

Steps 604-610 can be seen in steps 504-510 of example 1.

In particular implementations, the PCF may also send a cancel indication to the SMF at any time to cancel the previously sent setup and hold indication, and the SMF may also send a cancel indication to the AN at any time to cancel the previously sent setup and hold indication for the corresponding QoS flow.

In step 611, the transmission of QoS flows is monitored according to the monitoring indication.

The AN monitors the actual transmission delay and/or the actual transmission error rate of the data packet for the QoS flow according to the monitoring indication and the monitoring time window.

And step 612, reporting the monitoring result.

According to the monitoring indication, when the actual transmission delay or the actual transmission error rate of the data packet of the QoS stream exceeds the data packet transmission delay and error rate requirement received by the AN in the step 3, the AN notifies the SMF.

In step 613, the smf notifies the PCF of the monitoring result.

In practice, steps 611-613 may occur at any time after step 605.

In a specific implementation, in a process that the UE moves and switches from a source AN to a target AN, the source AN may send AN establishment maintaining indication, a monitoring indication and a monitoring time window corresponding to a QoS flow to the target AN, the target AN still establishes the QoS flow according to the indication even if GFBR of the QoS flow cannot be allocated with enough radio resources to guarantee the QoS flow, and continues to attempt to allocate radio resources to the QoS flow until GFBR of the QoS flow is met, and the target AN monitors actual transmission delay and/or actual transmission error rate of a data packet for the QoS flow according to the monitoring indication and the monitoring time window.

Based on the same inventive concept, the embodiments of the present invention further provide PCF entities, SMF entities, AN entities, and service establishment apparatuses, and because the principles of these devices for solving problems are similar to those of the service establishment method, the implementation of these devices may refer to the implementation of the method, and the repetition is omitted.

In implementing the technical scheme provided by the embodiment of the invention, the method can be implemented as follows.

Fig. 7 is a schematic diagram of a PCF entity structure, as shown in the figure, including:

the processor 700 is configured to read the program in the memory 720, and execute the following procedures:

a transceiver 710 for receiving and transmitting data under the control of the processor 700, performs the following processes:

and sending the PCC rule to the SMF.

In practice, the traffic is GBR type traffic;

In practice, further comprising:

Wherein in fig. 7, a bus architecture may comprise any number of interconnected buses and bridges, and in particular one or more processors represented by processor 700 and various circuits of memory represented by memory 720, linked together. The bus architecture may also link together various other circuits such as peripheral devices, voltage regulators, power management circuits, etc., which are well known in the art and, therefore, will not be described further herein. The bus interface provides an interface. The transceiver 710 may be a number of elements, including a transmitter and a transceiver, providing a means for communicating with various other apparatus over a transmission medium. The processor 700 is responsible for managing the bus architecture and general processing, and the memory 720 may store data used by the processor 700 in performing operations.

Fig. 8 is a schematic diagram of an SMF entity structure, as shown in the figure, including:

processor 800, for reading the program in memory 820, performs the following processes:

transceiver 810 for receiving and transmitting data under the control of processor 800 performs the following processes:

receiving PCC rules sent by PCF;

In practice, the traffic is GBR type traffic;

In practice, further comprising:

Wherein in fig. 8, a bus architecture may comprise any number of interconnected buses and bridges, and in particular, one or more processors represented by processor 800 and various circuits of memory represented by memory 820, linked together. The bus architecture may also link together various other circuits such as peripheral devices, voltage regulators, power management circuits, etc., which are well known in the art and, therefore, will not be described further herein. The bus interface provides an interface. Transceiver 810 may be a number of elements, including a transmitter and a transceiver, providing a means for communicating with various other apparatus over a transmission medium. The processor 800 is responsible for managing the bus architecture and general processing, and the memory 820 may store data used by the processor 800 in performing operations.

Fig. 9 is a schematic diagram of AN entity structure, as shown in the figure, including:

processor 900, for reading the program in memory 920, performs the following procedures:

a transceiver 910 for receiving and transmitting data under the control of the processor 900 performs the following procedures:

In practice, the QoS flow is a GBR type QoS flow;

In practice, further comprising:

Wherein in fig. 9, a bus architecture may comprise any number of interconnected buses and bridges, and in particular one or more processors represented by processor 900 and various circuits of memory represented by memory 920, linked together. The bus architecture may also link together various other circuits such as peripheral devices, voltage regulators, power management circuits, etc., which are well known in the art and, therefore, will not be described further herein. The bus interface provides an interface. The transceiver 910 may be a number of elements, including a transmitter and a transceiver, providing a means for communicating with various other apparatus over a transmission medium. The processor 900 is responsible for managing the bus architecture and general processing, and the memory 920 may store data used by the processor 900 in performing operations.

The embodiment of the invention also provides a service establishment device, which comprises:

and the first sending module is used for sending the PCC rule to the SMF.

The implementation can be seen in particular from the service establishment method on the PCF side.

See in particular the service set-up method implementation on the SMF side.

See in particular the service set-up method implementation on the AN side.

The service establishment method can be implemented specifically.

For convenience of description, the parts of the above apparatus are described as being functionally divided into various modules or units, respectively. Of course, the functions of each module or unit may be implemented in the same piece or pieces of software or hardware when implementing the present invention.

In summary, for GBR type services, in the prior art, if sufficient radio resources cannot be allocated, service establishment is refused, and if UE still wants to continue to use the service, it is necessary to repeatedly attempt to reestablish a large amount of introduced control plane signaling interactions.

It will be appreciated by those skilled in the art that embodiments of the present invention may be provided as a method, system, or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present invention may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, magnetic disk storage, optical storage, and the like) having computer-usable program code embodied therein.

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

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

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

It will be apparent to those skilled in the art that various modifications and variations can be made to the present invention without departing from the spirit or scope of the invention. Thus, it is intended that the present invention also include such modifications and alterations insofar as they come within the scope of the appended claims or the equivalents thereof.

Claims

1. A method for establishing a service, comprising:

determining a Policy and Charging Control (PCC) rule corresponding to a service to be established, wherein the PCC rule comprises a first establishment maintaining indication, and the first establishment maintaining indication is used for admitting the establishment of the service no matter whether an air interface resource meets the service quality (QoS) requirement;

and sending the PCC rule to a session management function SMF.

2. The method of claim 1, wherein the traffic is guaranteed bit rate GBR type traffic;

the first establishment maintaining indication refers to that whether the air interface resource meets the GBR requirement of the service or not, establishment of the service is admitted, and resources are allocated for the service until the GBR requirement of the service is met.

3. The method according to claim 1 or 2, wherein the PCC rule further comprises one or a combination of the following parameters:

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

And receiving a notice sent by the SMF, wherein the notice is sent after the SMF receives the notice of the AN, and the notice is sent by the access network AN when the transmission delay and/or the error rate of the actually transmitted data packet exceed the requirements of the SMF configuration.

5. The method as recited in claim 2, further comprising:

6. The method as recited in claim 2, further comprising:

7. The method of claim 1 or 2, further comprising:

8. A method for establishing a service, comprising:

receiving PCC rules sent by PCF, wherein the PCC rules comprise a first establishment maintaining instruction, and the first establishment maintaining instruction is to accept the establishment of the service no matter whether the air interface resource meets the QoS requirement of the service;

9. The method of claim 8, wherein the traffic is GBR type traffic;

the first establishment maintaining indication refers to that whether the air interface resource meets the GBR requirement of the service or not is admitted to the establishment of the service, and resources are allocated to the service until the GBR requirement of the service is met;

the second establishment maintenance indication refers to whether the air interface resource meets the stream guaranteed bit rate GFBR of the QoS stream or not, the QoS stream is admitted to the establishment of the QoS stream, and the resource is allocated for the QoS stream until the GFBR of the QoS stream is met.

10. The method of claim 9, wherein,

11. The method according to claim 8 or 9, wherein the PCC rule further comprises one or a combination of the following parameters:

12. The method of claim 11, wherein one or a combination of the following parameters are included in the indication of SMF: the method further comprises the steps of:

13. The method as recited in claim 9, further comprising:

14. The method as recited in claim 9, further comprising:

15. The method as recited in claim 8 or 9, further comprising:

16. A method for establishing a service, comprising:

17. The method of claim 16, wherein the QoS flow is a GBR type QoS flow;

18. The method as recited in claim 17, further comprising:

19. The method of claim 16 or 17, wherein,

the receiving the QFI of the QoS flow and the second establishment maintenance indication sent by the SMF further comprises receiving one or a combination of the following parameters sent by the SMF: the method comprises the steps of data packet transmission delay, bit error rate, monitoring indication of the data packet transmission delay, monitoring indication of the bit error rate, monitoring a time window of the data packet transmission delay and counting a time window of the bit error rate;

20. The method as recited in claim 16 or 17, further comprising:

21. A PCF entity, comprising:

determining a PCC rule corresponding to a service to be established, wherein the PCC rule comprises a first establishment maintaining instruction, and the first establishment maintaining instruction is to accept the establishment of the service no matter whether an air interface resource meets the QoS requirement of the service;

and sending the PCC rule to the SMF.

22. The PCF entity of claim 21 wherein said traffic is GBR type traffic;

23. The PCF entity of claim 21 or 22 wherein said PCC rule further comprises one or a combination of the following parameters:

24. The PCF entity of claim 23 further comprising:

25. The PCF entity of claim 22 further comprising:

26. The PCF entity of claim 22 further comprising:

27. The PCF entity of claim 21 or 22, further comprising:

28. An SMF entity, comprising:

Determining a PCC rule sent by a received PCF, wherein the PCC rule comprises a first establishment maintaining instruction, and the first establishment maintaining instruction is to accept the establishment of the service no matter whether an air interface resource meets the QoS requirement of the service;

receiving PCC rules sent by PCF;

29. The SMF entity of claim 28, wherein said traffic is GBR type traffic;

30. The SMF entity of claim 29, wherein,

31. The SMF entity of claim 28 or 29, wherein said PCC rule further comprises one or a combination of the following parameters:

32. The SMF entity of claim 31, wherein one or a combination of the following parameters are included in the indication of SMF: the method further comprises the steps of:

33. The SMF entity of claim 29, further comprising:

34. The SMF entity of claim 29, further comprising:

35. The SMF entity of claim 28 or 29, further comprising:

36. AN entity, comprising:

37. The AN entity of claim 36, wherein the QoS flow is a GBR type QoS flow;

38. The AN entity of claim 37, further comprising:

39. The AN entity of claim 36 or 37, wherein,

40. The AN entity of claim 36 or 37, further comprising:

41. A service creation apparatus, comprising:

a rule determining module, configured to determine a PCC rule corresponding to a service to be established, where the PCC rule includes a first establishment maintenance indication, where the first establishment maintenance indication refers to an establishment of the service regardless of whether an air interface resource meets a service QoS requirement;

and the first sending module is used for sending the PCC rule to the SMF.

42. A service creation apparatus, comprising:

a first receiving module, configured to receive a PCC rule sent by a PCF, where the PCC rule includes a first establishment maintenance indication, where the first establishment maintenance indication refers to an establishment of a service regardless of whether an air interface resource meets a service QoS requirement;

43. A service creation apparatus, comprising:

44. A computer readable storage medium, characterized in that the computer readable storage medium stores a computer program for executing the method of any one of claims 1 to 20.