CN105207787B

CN105207787B - A kind of QoS of survice control method and the network equipment

Info

Publication number: CN105207787B
Application number: CN201510543917.0A
Authority: CN
Inventors: 张立斌; 汪红星
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2015-08-28
Filing date: 2015-08-28
Publication date: 2018-09-11
Anticipated expiration: 2035-08-28
Also published as: CN105207787A

Abstract

The invention discloses a kind of QoS of survice control method and the network equipments, and to solve the problems, such as the prior art in the presence of the qos parameter that can not ensure required by the type of service of the Business Stream, this method is：The network equipment determines the qos parameter of the business after terminal initiates a kind of business to target device, and the transmission path between terminal and target device include network node in, determine at least one network node to be allocated；According to the qos parameter of the business, corresponding node QoS parameter is distributed for each network node to be allocated；And the node QoS parameter of distribution is notified into corresponding network node to be allocated.In this way, the qos parameter of the business is distributed to network node to be allocated by the network equipment, network node to be allocated is set to transmit the Business Stream of the business according to the node QoS parameter of distribution, ensure that the Business Stream can be according to the qos parameter of the business, pass through entire transmission path, it realizes QoS of survice control, improves user experience.

Description

Service QoS control method and network equipment

Technical Field

The present invention relates to the field of communications technologies, and in particular, to a method and a network device for controlling a service QoS.

Background

When end-to-end Service communication is performed in an Internet Protocol (IP) network, Quality of Service (QoS) of a Service flow is an important factor for realizing the Service communication. Because different service types are communicated through the IP network, such as real-time services like video call, the QoS parameter to be configured is higher, and the QoS parameter to be configured is lower for data communication services like web browsing, different values are configured for the QoS parameters of different service types to realize QoS control of different service types, where the QoS parameters include: time delay, packet loss rate, jitter, bandwidth, etc.

Conventionally, the QoS parameter set for each service type is set for the entire transmission path implementing each service type. For example, in a Policy and Charging Control (PCC) architecture, a corresponding quality of service Class Identifier (QCI) is defined for each service type, and the QCI includes different QoS parameters indicating QoS, such as delay, packet loss rate, jitter, and bandwidth, where the delay indication is an overall delay from a User Equipment (UE) in a media specific bearer to a Policy and Charging Enhancement Function (PCEF)/packet data Gateway (PDN-Gateway, P-GW).

Because the QoS parameter set for a certain Service type is for the entire transmission path for transmitting the Service flow of the Service type, however, the end-to-end transmission path includes multiple network nodes, such as a base station, a serving-Gateway (S-GW), a P-GW, and each relay node in the relay path between the UE and the PCEF in a media-specific bearer, when the Service flow passes through each network node, each network node processes the Service flow according to its own operating condition, obviously, the QoS parameter processed by each network node is integrated, and there is a large error with the QoS parameter set for the Service type, so that the QoS parameter required by the Service type cannot be guaranteed after the Service flow passes through the entire transmission path, thereby reducing user experience.

Disclosure of Invention

The embodiment of the invention provides a service QoS control method and network equipment, which are used for solving the problem that QoS parameters required by the service type of a service flow cannot be ensured after the service flow passes through a whole transmission path in the prior art.

The embodiment of the invention provides the following specific technical scheme:

in a first aspect, a method for controlling service QoS includes:

after a terminal initiates a service to a target device, a network device determines a QoS parameter of the service;

the network equipment determines at least one network node to be distributed in a transmission path between the terminal and the target equipment, wherein the network node to be distributed is a network node in the transmission path;

the network equipment allocates corresponding node QoS parameters for each network node to be allocated according to the QoS parameters of the services;

and the network equipment informs the corresponding network node to be distributed of the node QoS parameter of each network node to be distributed.

With reference to the first aspect, in a first possible implementation manner of the first aspect, the determining, by the network device, a QoS parameter of the service includes:

the network equipment receives a service request message sent by the terminal, wherein the service request message carries the QoS parameter of the service; or

The network equipment receives a service request message sent by the terminal, wherein the service request message carries the service type of the service; determining a QoS parameter corresponding to the service type of the service according to a preset corresponding relation between the service type and the QoS parameter, and taking the QoS parameter as the QoS parameter of the service; or

The network equipment takes a default QoS parameter as a QoS parameter of the service; or

The network equipment receives the QoS parameters carried by the target equipment in the service response message; or

The network equipment sends a QoS parameter request message to a service server; receiving the QoS parameter returned by the service server based on the QoS parameter request message; taking the received QoS parameters as the QoS parameters of the service; or

The network equipment receives a QoS parameter sent by a Session Initiation Protocol (SIP) server; and taking the received QoS parameters as the QoS parameters of the service.

With reference to the first possible implementation manner of the first aspect, in a second possible implementation manner of the first aspect, the receiving, by the network device, a service request message sent by the terminal, where the service request message carries a QoS parameter of the service includes:

the network equipment receives an SIP message sent by the terminal, and a header field in the SIP message contains a QoS parameter of the service; or

And the network equipment receives an SIP message sent by the terminal, wherein a Session Description Protocol (SDP) field in the SIP message contains the QoS parameter of the service.

With reference to the first aspect, or any one of the first and second possible implementation manners of the first aspect, in a third possible implementation manner of the first aspect, when the transmission path is a media-specific bearer, the network node includes a base station, a serving gateway S-GW, and a packet data gateway P-GW.

When the transmission path is a relay path, the network node includes at least one relay node.

With reference to the third possible implementation manner of the first aspect, in a fourth possible implementation manner of the first aspect, when the transmission path is a relay path, before the network device determines at least one network node to be allocated, the method further includes:

the network device determines a transmission path between the terminal and the target device.

With reference to the fourth possible implementation manner of the first aspect, in a fifth possible implementation manner of the first aspect, the determining, by the network device, a transmission path between the terminal and the target device includes:

the network equipment determines an alternative relay path between the terminal and the target equipment;

the network equipment acquires the working capacity information and the statistical information of the relay nodes contained in the alternative relay paths;

and the network equipment selects one alternative relay path from the alternative relay paths as a transmission path between the terminal and the target equipment according to the acquired working capacity information and the statistical information of the relay nodes, wherein the working capacity information and the statistical information of each relay node contained in the selected alternative relay path conform to the QoS parameters of the service.

With reference to the first aspect and any one of the first to fifth possible implementation manners of the first aspect, in a sixth possible implementation manner of the first aspect, the QoS parameter of the service includes any one or a combination of the following: total transmission delay, packet loss rate, jitter, bandwidth.

With reference to the sixth possible implementation manner of the first aspect, in a seventh possible implementation manner of the first aspect, when the QoS parameter includes a total transmission delay, the allocating, by the network device, a corresponding node QoS parameter for each network node to be allocated according to the QoS parameter of the service includes:

the network equipment acquires the geographical position information of the terminal and the geographical position information of the target equipment;

the network equipment determines the distance between the terminal and the target equipment according to the acquired geographical position information of the terminal and the geographical position information of the target equipment;

the network equipment determines physical transmission delay according to the determined distance between the terminal and the target equipment;

the network equipment determines to-be-decomposed transmission delay according to the total transmission delay and the physical transmission delay, wherein the to-be-decomposed transmission delay is equal to the difference between the total transmission delay and the physical transmission delay;

and the network equipment allocates corresponding node transmission time delay for each network node to be allocated according to the transmission time delay to be decomposed.

With reference to the third possible implementation manner of the first aspect, in an eighth possible implementation manner of the first aspect, the notifying, by the network device, the corresponding each to-be-allocated network node of the node QoS parameter of each to-be-allocated network node that is allocated includes:

the network equipment sends the distributed node QoS parameters of each network node to be distributed to each corresponding network node to be distributed; or

And the network equipment determines the QoS grade corresponding to the QoS of each network node to be distributed according to the mapping relation between the node QoS parameter and the QoS grade set for each network node to be distributed, and sends the determined QoS grade of each network node to be distributed to each corresponding network node to be distributed.

With reference to the eighth possible implementation manner of the first aspect, in a ninth possible implementation manner of the first aspect, when a network node includes a base station, an S-GW, and a P-GW, the sending, by the network device, a node QoS parameter of each allocated network node to be allocated to each corresponding network node to be allocated includes:

the network equipment sends the node QoS parameter of a first to-be-distributed network node to the first to-be-distributed network node, wherein the first to-be-distributed network node is one to-be-distributed network node which does not contain a network node with the network equipment;

the network device sends the node QoS parameter of a second network node to be distributed to the second network node to be distributed through at least one network node, wherein the second network node to be distributed is one network node to be distributed, which contains the at least one network node, between the network node to be distributed and the network device.

With reference to the eighth possible implementation manner of the first aspect, in a tenth possible implementation manner of the first aspect, when a network node includes at least one relay node, the sending, by the network device, the allocated node QoS parameter of each network node to be allocated to each corresponding network node to be allocated includes:

and respectively sending the node QoS parameters of each node to be distributed to each node to be distributed.

With reference to the tenth possible implementation manner of the first aspect, in an eleventh possible implementation manner of the first aspect, the sending, by the network device, the node QoS parameter of each node to be allocated to each node to be allocated includes:

and respectively sending an ADD PATH ADD-PATH message to each network node to be distributed, wherein the ADD-PATH message carries the node QoS parameter of each network node to be distributed.

In a second aspect, a network device includes:

a first determining unit, configured to determine a QoS parameter of a service after a terminal initiates the service to a target device;

a second determining unit, configured to determine at least one to-be-allocated network node in a transmission path between the terminal and the target device, where the to-be-allocated network node is a network node in the transmission path;

the processing unit is used for distributing corresponding node QoS parameters for each network node to be distributed according to the QoS parameters of the services;

and the sending unit is used for notifying the corresponding each to-be-distributed network node of the node QoS parameter of each to-be-distributed network node.

With reference to the second aspect, in a first possible implementation manner of the second aspect, the method further includes:

a receiving unit, configured to receive a service request message sent by the terminal, where the service request message carries a QoS parameter of the service;

the first determining unit is specifically configured to:

and determining the QoS parameters of the service according to the received service request message.

With reference to the second aspect, in a second possible implementation manner of the second aspect, the method further includes:

a receiving unit, configured to receive a service request message sent by the terminal, where the service request message carries a service type of the service;

the first determining unit is specifically configured to:

and determining the QoS parameter corresponding to the service type of the service according to the preset corresponding relation between the service type and the QoS parameter, wherein the QoS parameter is used as the QoS parameter of the service.

With reference to the second aspect, in a third possible implementation manner of the second aspect, the first determining unit is specifically configured to:

and taking the default QoS parameter as the QoS parameter of the service.

With reference to the second aspect, in a fourth possible implementation manner of the second aspect, the method further includes:

a receiving unit, configured to receive a QoS parameter carried by the target device in a service response message;

the first determining unit is specifically configured to: and taking the QoS parameter carried in the service response message as the QoS parameter of the service.

With reference to the second aspect, in a fifth possible implementation manner of the second aspect, the first determining unit is configured to send a QoS parameter request message to a service server;

the network equipment further comprises a receiving unit, which is used for receiving the QoS parameter returned by the service server based on the QoS parameter request message;

the first determining unit is further configured to use the received QoS parameter as the QoS parameter of the service.

With reference to the second aspect, in a sixth possible implementation manner of the second aspect, the method further includes:

a receiving unit, configured to receive a QoS parameter sent by a session initiation protocol SIP server;

the first determining unit is specifically configured to use the received QoS parameter as the QoS parameter of the service.

With reference to the first possible implementation manner of the second aspect, in a seventh possible implementation manner of the second aspect, the receiving unit is specifically configured to:

receiving an SIP message sent by the terminal, wherein a header field in the SIP message comprises a QoS parameter of the service; or

And receiving an SIP message sent by the terminal, wherein a Session Description Protocol (SDP) field in the SIP message contains the QoS parameters of the service.

With reference to the second aspect and any one of the first to seventh possible implementation manners of the second aspect, in an eighth possible implementation manner of the second aspect, when the transmission path is a media-specific bearer, the network node includes a base station, a serving gateway S-GW, and a packet data gateway P-GW.

With reference to the eighth possible implementation manner of the second aspect, in a ninth possible implementation manner of the second aspect, when the transmission path is a relay path, before the determining, by the second determining unit, at least one network node to be allocated, the method further includes:

a third determining unit, configured to determine a transmission path between the terminal and the target device.

With reference to the ninth possible implementation manner of the second aspect, in a tenth possible implementation manner of the second aspect, the third determining unit is specifically configured to:

determining an alternative relay path between the terminal and the target device;

acquiring the working capacity information and the statistical information of the relay nodes contained in the alternative relay path;

and selecting one alternative relay path from the alternative relay paths as a transmission path between the terminal and the target equipment according to the acquired working capacity information and the statistical information of the relay nodes, wherein the working capacity information and the statistical information of each relay node contained in the selected alternative relay path conform to the QoS parameters of the service.

With reference to the second aspect and the first to tenth possible implementation manners of the second aspect, in an eleventh possible implementation manner of the second aspect, the QoS parameter of the service includes any one or a combination of the following: total transmission delay, packet loss rate, jitter, bandwidth.

With reference to the eleventh possible implementation manner of the second aspect, in a twelfth possible implementation manner of the second aspect, when the QoS parameter includes a total transmission delay, the processing unit is specifically configured to:

acquiring the geographical position information of the terminal and the geographical position information of the target equipment;

determining the distance between the terminal and the target equipment according to the acquired geographical position information of the terminal and the geographical position information of the target equipment;

determining physical transmission delay according to the determined distance between the terminal and the target equipment;

determining to-be-decomposed transmission delay according to the total transmission delay and the physical transmission delay, wherein the to-be-decomposed transmission delay is equal to the difference between the total transmission delay and the physical transmission delay;

and distributing corresponding node transmission time delay for each network node to be distributed according to the transmission time delay to be decomposed.

With reference to the eighth possible implementation manner of the second aspect, in a thirteenth possible implementation manner of the second aspect, the sending unit is specifically configured to:

sending the distributed node QoS parameters of each network node to be distributed to corresponding network nodes to be distributed; or

And determining the QoS grade corresponding to the QoS of each network node to be distributed according to the mapping relation between the node QoS parameter and the QoS grade set for each network node to be distributed, and sending the determined QoS grade of each network node to be distributed to each corresponding network node to be distributed.

With reference to the thirteenth possible implementation manner of the second aspect, in a fourteenth possible implementation manner of the second aspect, when a network node includes a base station, an S-GW, and a P-GW, the sending unit, when sending a node QoS parameter of each allocated network node to be allocated to each corresponding network node to be allocated, is specifically configured to:

sending a node QoS parameter of a first to-be-distributed network node to the first to-be-distributed network node, wherein the first to-be-distributed network node is a to-be-distributed network node which does not include a network node with the network equipment;

and sending the node QoS parameter of a second distributed network node to be distributed to the second distributed network node through at least one network node, wherein the second distributed network node is a network node to be distributed which contains the at least one network node in the network node to be distributed and the network equipment.

With reference to the thirteenth possible implementation manner of the second aspect, in a fifteenth possible implementation manner of the second aspect, when the network node includes at least one relay node, the sending unit, when sending the node QoS parameter of each allocated network node to be allocated to each corresponding network node to be allocated, is specifically configured to:

With reference to the fifteenth possible implementation manner of the second aspect, in a sixteenth possible implementation manner of the second aspect, when the sending unit sends the node QoS parameter of each node to be allocated to each node to be allocated, the sending unit is specifically configured to:

By adopting the service QoS control method provided by the invention, after a terminal initiates a service to a target device, a network device determines QoS parameters of the service, and determines at least one network node to be distributed in network nodes contained in a transmission path between the terminal and the target device; distributing corresponding node QoS parameters for each network node to be distributed according to the QoS parameters of the services; and informing the corresponding network node to be distributed of the node QoS parameter of each distributed network node to be distributed. Therefore, the network device can allocate the QoS parameters of the service to each network node to be allocated, so that each network node to be allocated can transmit the service flow of the service according to the node QoS parameters allocated to the network node to be allocated by the network device, the service flow can be ensured to realize service QoS control through the whole transmission path according to the QoS parameters of the service, and the user experience is improved.

Drawings

Fig. 1 is a schematic diagram of a PCC architecture for service communication according to an embodiment of the present invention;

fig. 2 is a schematic diagram of another network architecture for service communication according to an embodiment of the present invention;

fig. 3 is a schematic diagram of a network device according to an embodiment of the present invention;

fig. 4 is a flowchart of a method for controlling QoS according to an embodiment of the present invention;

fig. 5 is a schematic flowchart of a method for controlling a service QoS according to an embodiment of the present invention;

fig. 6 is a detailed flowchart of another method for controlling QoS according to an embodiment of the present invention;

fig. 7 is a schematic structural diagram of a network device according to an embodiment of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention will be described in further detail with reference to the accompanying drawings, and it is apparent that the described embodiments are only a part of the embodiments of the present invention, not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The embodiment of the invention provides a service QoS control method and network equipment, which are used for solving the problems that in the prior art, QoS parameters are set aiming at service types, when a service flow of the service type passes through each network node, each network node processes the service flow according to the self running condition, obviously, the QoS parameters for processing the service flow by each network node are combined and have large errors with the QoS parameters set for the service type, so that the QoS parameters required by the service type cannot be ensured after the service flow passes through the whole transmission path, and further, the user experience is reduced. The method and the device are based on the same inventive concept, and because the principles of solving the problems of the method and the device are similar, the implementation of the device and the method can be mutually referred, and repeated parts are not repeated.

By adopting the technical scheme of the invention, after a terminal initiates a service to a target device, a network device determines the QoS parameter of the service and determines at least one network node to be allocated in network nodes contained in a transmission path between the terminal and the target device; distributing corresponding node QoS parameters for each network node to be distributed according to the QoS parameters of the services; and informing the corresponding network node to be distributed of the node QoS parameter of each distributed network node to be distributed. Therefore, the network device can allocate the QoS parameters of the service to each network node to be allocated, so that each network node to be allocated can transmit the service flow of the service according to the node QoS parameters allocated to the network node to be allocated by the network device, the service flow can be ensured to realize service QoS control through the whole transmission path according to the QoS parameters of the service, and the user experience is improved.

Referring to fig. 1, an embodiment of the present invention provides a PCC architecture for service communication, which is used to implement the service QoS control method provided in the embodiment of the present invention, where the PCC architecture may include a subscriber subscription database (SPR) 101, an Application layer Function entity (AF) 102, an Online Charging System (OCS) 103, a measurement control and Charging Rules Function entity (Policy and Charging Rules Function PCRF)104, a bearer Binding and Event reporting Function entity (Bearing Binding and Event reporting Function, BBERF)105, a Policy and Charging execution entity (Policy and Charging execution Function, PCEF)106, a traffic detection Function entity (traffic detection Function, TDF)107, and an Offline Charging System (Offline Charging System, OFCS) 108. Wherein,

the SPR101 is configured to provide user subscription data to the PCRF 104;

the AF102 is configured to dynamically provide service information of a service currently processed by the terminal, such as session information of an application layer, to the PCRF 104, so that the PCRF 104 can dynamically generate or modify a policy corresponding to the service currently processed by the terminal according to the session information. Wherein, according to a difference in a network implementing the PCC architecture, entity devices of the AF102 are different, for example, when the PCC architecture is implemented based on an Evolved Packet Core (EPC), the AF102 may be a Proxy Call Session Control function entity (P-CSCF);

the PCRF 104 is configured to determine, according to a restriction of a terminal access network, an operator policy, the user subscription data obtained from the SPR101, and the service information of the service currently processed by the terminal obtained from the AF102, a policy corresponding to the service currently processed by the terminal, and provide the policy to the PCEF 106. The strategy comprises a detection rule of the service flow, whether gating is performed, a QoS parameter of the service, a charging rule based on the service flow and the like;

the PCEF 106 is configured to execute the policy provided by the PCRF 104, for example, execute detection and measurement of a service flow, guarantee QoS parameters of the service, establish a user plane traffic tree, trigger session management of a control plane, and the like;

each entity device such as the OCS 103, the BBERF 105, the TDF 107, and the OFCS 108 is configured to implement online or offline charging.

In the PCC architecture, implementing service QoS control includes: the terminal initiates a service to the target device. The service may be a point-to-point service in which the terminal calls another terminal, or a point-to-point service in which the terminal accesses a server, and when the service is the point-to-point service, the target device is the other terminal, and when the service is the point-to-point service, the target device is the server; the AF102 may determine QoS parameters for the traffic; the AF102 may further determine at least one network node to be allocated in a network node in a transmission path between the terminal and the target device, where the transmission path is a media-specific bearer established between the terminal and the target device, and the network node in the media-specific bearer includes: any one or combination of network nodes such as a base station, a Mobility Management Entity (MME), an S-GW, a P-GW, a PCRF 104 and the like; the AF102 allocates corresponding node QoS parameters to each network node to be allocated according to the QoS parameters of the service, and notifies the allocated node QoS parameters of each network node to be allocated to each corresponding network node to be allocated; and each network node to be distributed transmits the service flow of the service according to the respective node QoS parameter notified by the AF 102.

Therefore, through the process, the service flow of the service can be ensured to realize the service QoS control through the whole transmission path according to the QoS parameter of the service, and the user experience is improved.

Referring to fig. 2, an embodiment of the present invention further provides another network architecture for service communication, and is also used to implement the service QoS control method provided in the embodiment of the present invention, where the network architecture implements multipath transmission through an open path (OpenPath) protocol, and the network architecture includes: a terminal 201, a Session Initiation Protocol (SIP) server 202, a controller 203, a target device 204, and at least one relay node, such as a relay node 205, a relay node 206, and a relay node 207 shown in the figure, where the SIP server 202 and the controller 203 may be one logical entity or module, which is not limited herein.

The process of realizing service communication through the network structure comprises the following steps:

when the terminal 201 is ready to initiate a service to the target device 204, it sends an invite message to the SIP server 202, for requesting to call the target device 204. The intet message carries domain information of the terminal 201 as a calling party and information of the target device 204 as a called party.

The SIP server 202 acquires geographical location information, media information, and the like of the terminal 201 and the target device 204, and specifies a relay path between the terminal 201 and the target device 204 through the controller 203 based on the information. For example, in the network architecture shown in fig. 2, two relay paths between the target device 204 and the terminal 201 are specified:

relay path 1: target device 204- > relay node 205- > terminal 201

Relay path 2: target device 204- > relay node 207- > relay node 206- > terminal 201

Each relay path has a unique path Identification (ID), such as PID1 for relay path 1 and PID2 for relay path 2.

The controller 203 sends an add path (AddPath) request to the relay node 205, the relay node 206, and the relay node 207 respectively according to the OpenPath protocol, where the AddPath request includes a corresponding path ID and a next hop address, for example, the AddPath request sent to the relay node 205 includes a PID1 and an address of the terminal 201 of the next hop.

The SIP server 202 sends an INVITE message to the target device 204, where the INVITE message carries a path ID and a next hop address. For example, the INVITE message carries the PID1 and the address of the relay node 205, and the PID2 and the address of the relay node 207.

After receiving the INVITE message sent by the SIP server 202, the target device 204 responds to the request call of the terminal 201, that is, sends a 2000K response to the SIP server 202, where the 2000K response includes a response ANSWER message.

In the same manner, the SIP server specifies a relay path from the terminal 201 to the target device 204 via a controller.

After the above process, the terminal 201 and the target device 204 may obtain information of a relay path, and may send a service flow based on the relay path corresponding to the obtained information of the relay path.

In the above network architecture, implementing service QoS control includes:

after the terminal 201 initiates a service to the target device 204, the controller 203 may determine a QoS parameter of the service; the controller 203 selects one of multiple candidate relay paths as a transmission path between the terminal 201 and the target device 204, and determines at least one to-be-allocated network node in network nodes (relay nodes) in the determined transmission path, and the controller 203 allocates a corresponding node QoS parameter to each to-be-allocated network node according to the QoS parameter of the service, and notifies the corresponding to-be-allocated network node of the node QoS parameter of each to-be-allocated network node; and each network node to be distributed transmits the service flow of the service according to the respective node QoS parameter notified by the control 203.

In the embodiment of the present invention, the service QoS control method may be implemented not only by the network architectures in fig. 1 and fig. 2, but also by other network architectures, which is not limited in the present invention.

An embodiment of the present invention provides a network device, and referring to fig. 3, the network device 300 includes: a transceiver 301, a processor 302, a bus 303, and a memory 304, wherein:

the transceiver 301, processor 302 and memory 304 are interconnected by a bus 303; the bus 303 may be a Peripheral Component Interconnect (PCI) bus, an Extended Industry Standard Architecture (EISA) bus, or the like. The bus may be divided into an address bus, a data bus, a control bus, etc. For ease of illustration, only one thick line is shown in FIG. 3, but this does not mean only one bus or one type of bus.

The transceiver 301 is configured to communicate with other network nodes, such as to inform a network node to be allocated of corresponding node QoS parameters.

The processor 302 is configured to:

after a terminal initiates a service to a target device, determining a QoS parameter of the service;

determining at least one network node to be allocated in a transmission path between the terminal and the target device, wherein the network node to be allocated is a network node in the transmission path;

distributing corresponding node QoS parameters for each network node to be distributed according to the QoS parameters of the services;

and informing the corresponding network node to be distributed of the node QoS parameter of each distributed network node to be distributed.

Optionally, determining the QoS parameter of the service includes:

receiving a service request message sent by the terminal, wherein the service request message carries a QoS parameter of the service; or

Receiving a service request message sent by the terminal, wherein the service request message carries the service type of the service; determining a QoS parameter corresponding to the service type of the service according to a preset corresponding relation between the service type and the QoS parameter, and taking the QoS parameter as the QoS parameter of the service; or

Taking a default QoS parameter as a QoS parameter of the service; or

Receiving a QoS parameter carried by the target equipment in a service response message; or

Sending a QoS parameter request message to a service server; receiving the QoS parameter returned by the service server based on the QoS parameter request message; taking the received QoS parameters as the QoS parameters of the service; or

Receiving a QoS parameter sent by a session initiation protocol SIP server; and taking the received QoS parameters as the QoS parameters of the service.

Optionally, receiving a service request message sent by the terminal, where the service request message carries a QoS parameter of the service, includes:

Optionally, when the transmission path is a media-specific bearer, the network node includes a base station, a serving gateway S-GW, and a packet data gateway P-GW.

Optionally, when the transmission path is a relay path, before determining at least one network node to be allocated, the method further includes:

and determining a transmission path between the terminal and the target equipment.

Optionally, determining a transmission path between the terminal and the target device includes:

Optionally, the QoS parameter of the service includes any one or a combination of the following: total transmission delay, packet loss rate, jitter, bandwidth.

Optionally, when the QoS parameter includes a total transmission delay, the network device allocates, according to the QoS parameter of the service, a corresponding node QoS parameter for each network node to be allocated, including:

Optionally, notifying the node QoS parameter of each allocated network node to be allocated to each corresponding network node to be allocated, where the notifying includes:

Optionally, when the network node includes a base station, an S-GW, and a P-GW, sending the node QoS parameter of each allocated network node to be allocated to each corresponding network node to be allocated, including:

sending a node QoS parameter of a first to-be-allocated network node to the first to-be-allocated network node, where the first to-be-allocated network node is one of the to-be-allocated network nodes, which does not include a network node with the network device 300;

and sending the node QoS parameter of the distributed second network node to be distributed to the second network node to be distributed through at least one network node, where the second network node to be distributed is one of the network nodes to be distributed and the network device 300, where the at least one network node is included in the network node to be distributed.

Optionally, when the network node includes at least one relay node, sending the node QoS parameter of each allocated network node to be allocated to each corresponding network node to be allocated, including:

Optionally, the sending the node QoS parameter of each node to be allocated to each node to be allocated respectively includes:

The network device 300 also includes a memory 304 for storing programs and the like. In particular, the program may include program code comprising computer operating instructions. The memory 304 may include Random Access Memory (RAM) and may also include non-volatile memory (non-volatile memory), such as at least one disk memory. The processor 302 executes the application program stored in the memory 304 to implement the service QoS control method.

Referring to fig. 4, a service QoS control method provided in an embodiment of the present invention is applied to a network device for implementing service communication, and the method may be an AF (e.g., P-CSCF, etc.) in a PCC architecture, a controller in a network architecture for implementing service communication, and the like, which is not limited in this respect. The processing flow of the method comprises the following steps:

step 401: after a terminal initiates a service to a target device, a network device determines a QoS parameter of the service.

Optionally, when the terminal initiates the service to the target, the terminal sends a service request message to the network device, where the service request message may be an INVITE message.

Optionally, the network device determines the QoS parameter of the service, which may be but is not limited to the following manners:

the first mode is as follows: the network equipment receives a service request message sent by the terminal, wherein the service request message carries the QoS parameter of the service;

the second mode is as follows: the network equipment receives a service request message sent by the terminal, wherein the service request message carries the service type of the service; determining a QoS parameter corresponding to the service type of the service according to a preset corresponding relation between the service type and the QoS parameter, and taking the QoS parameter as the QoS parameter of the service;

the third mode is as follows: the network equipment takes a default QoS parameter as a QoS parameter of the service;

the fourth mode is that: the network equipment receives the QoS parameters carried by the target equipment in the service response message;

the fifth mode is as follows: the network equipment sends a QoS parameter request message to a service server; receiving the QoS parameter returned by the service server based on the QoS parameter request message; taking the received QoS parameters as the QoS parameters of the service;

the sixth mode: the network equipment receives a QoS parameter sent by an SIP server; and taking the received QoS parameters as the QoS parameters of the service.

Optionally, in the first mode, the receiving, by the network device, a service request message sent by the terminal, where the service request message carries a QoS parameter of the service, includes:

Optionally, in the PCC architecture shown in fig. 1 and the network architecture shown in fig. 2, the QoS parameter of the service may be acquired in any one of the first to fifth manners:

conventionally, the QoS parameters of each service are defined by standards. Therefore, in the first manner, when the terminal initiates a service, the QoS parameter of the service may be determined directly according to the service type of the service, and the QoS parameter of the service may be sent to the network device (AF 102) through a service request message.

In the second way, when a terminal initiates a service, the service type of the service is determined, and the service type of the service is sent to the network device through a service request message. And the network equipment determines the QoS parameters of the service according to the service type of the service.

In a third manner, the network device may set a default QoS parameter for all services, so that the QoS parameter of the service is the default QoS parameter no matter what service type the terminal initiates the service.

In a fourth mode, when a terminal initiates a service to a target device, the terminal sends a service request message to the network device, and after the network device processes the service request message, the target device responds based on the service request message, that is, sends a service response message to the network device. In this way, when determining the QoS parameter of the service, the target device may notify the network device of the QoS parameter of the service by carrying the QoS parameter of the service in the service response message.

In the fifth way, the network device may further interact with other devices, such as a service server, to obtain the QoS parameter of the service, where the specific process is as follows: the network equipment sends a QoS parameter request message to the service server; and the service server feeds back the QoS parameters based on the QoS parameter request message. The service Server may be a Home Subscriber Server (HSS), and the like, which is not limited in the present invention.

Optionally, in the network architecture shown in fig. 2, the QoS parameter of the service may also be obtained in a sixth manner, when an SIP server and a controller in the network architecture are different logical entities, the controller is the network device in the embodiment of the present invention, and the network device may also obtain the QoS parameter of the service through the SIP server.

In step 401, the network device determines the QoS parameter of the service, which is for a service flow of the service through the entire transmission path. The QoS parameters of the service may include any one or a combination of the following: total transmission delay, packet loss rate, jitter, bandwidth, etc.

Step 402: the network equipment determines at least one network node to be allocated in a transmission path between the terminal and the target equipment, wherein the network node to be allocated is a network node in the transmission path.

In different network architectures, the network nodes included in the transmission path between the terminal and the target device are different.

For example, in a PCC architecture implemented based on an EPC network, when implementing Voice over long Term Evolution (VoLTE) based on IMS, the transmission path is a media specific bearer, and the transmission path is as follows:

the terminal base station MME S-GW P-CSCF IMS CORE network (CORE) P-CSCF P-GW S-GW MME base station

In the transmission path, a network node between the terminal and the IMS CORE is a network node in a calling network, and a network node between the IMS CORE and the target device is a network node in a called network. Alternatively, the network nodes with the same function in the calling network and the called network may be the same device or different devices. For example, when the terminal and the target device are located within the coverage of the same base station, the base station in the calling network and the base station in the called network may be the same base station. And when the terminal and the target equipment are respectively in the coverage range of different base stations, the base station in the calling network and the base station in the called network are different base stations.

Optionally, when the QoS of the service includes a total transmission delay, because the delay variation of the network nodes such as the MME and the PCRF is small in the calling network and the called network, optionally, the network device may use any one or a combination of the network nodes with a large delay characteristic, such as the P-GW, the S-GW, and the base station, as the network node to be allocated according to the operation condition of the actual network node.

In the network architecture implementing the method for multipath transmitting traffic flow as shown in fig. 2, the network device is a controller. Since the controller may determine a plurality of alternative relay paths between the terminal and the target device, such as relay path 1 and relay path 2 in the network architecture. The transmission path is one of the multiple alternative relay paths. Therefore, before performing step 402, the method further includes:

the network device determines a transmission path between the terminal and the target device, that is, selects one of multiple candidate relay paths between the terminal and the target device as the transmission path.

Optionally, the determining, by the network device, a transmission path between the terminal and the target device includes:

When the terminal initiates a service to the target equipment, the controller can determine a plurality of alternative relay paths between the terminal and the target equipment through an SIP server;

the controller sends a Feature (FEATURES) message to a relay node in the network architecture, and the relay node receiving the FEATURES message returns a corresponding feature response message to the controller, wherein the feature response message contains the working capacity information of the relay node; the controller also sends a STATISTICS (STATISTICS) message to the relay node in the network architecture, and the relay node receiving the STATISTICS message returns a corresponding STATISTICS response message to the controller, where the STATISTICS response message includes the STATISTICS information of the relay node. In this way, the controller may determine the working capability information and the statistical information of the relay nodes included in each alternative relay path, such as the bandwidth and the operating condition of each node, by sending the FEATURES message and the statics message to the relay nodes.

And selecting one alternative relay path from the alternative relay paths as a transmission path between the terminal and the target equipment according to the acquired working capacity information and the statistical information of the relay nodes, wherein the working capacity information and the statistical information of each relay node contained in the selected alternative relay path conform to the QoS parameters of the service. For example, when the QoS parameter of the traffic includes a bandwidth of 10M, each relay node included in the transmission path selected by the controller supports the bandwidth of 10M.

The controller determines at least one to-be-allocated network node among network nodes (relay nodes) in a transmission path after determining the transmission path between the terminal and the target device.

Optionally, when the QoS of the service includes a total transmission delay, because a fluctuation range of a delay of the radio base station in the transmission path is large, the controller may use the radio base station as a network node to be allocated, implement delay control on the radio base station, and enable the radio base station to process according to a delay allocated by the controller, so as to ensure a delay requirement of the service.

Step 403: and the network equipment allocates corresponding node QoS parameters for each network node to be allocated according to the QoS parameters of the services.

And when the QoS parameters of the service comprise total transmission delay, the network equipment decomposes the total transmission delay and distributes the total transmission delay to each network node to be distributed. And when the QoS parameters of the service comprise packet loss rate, jitter or bandwidth, the network equipment directly allocates the packet loss rate, the jitter or the bandwidth to each network node to be allocated without decomposition.

When the QoS parameter of the service includes a total transmission delay, the network device decomposes the total transmission delay and allocates the decomposed total transmission delay to each network node to be allocated, including:

the network device may be distributed according to a preset rule, or may be distributed according to the number of network nodes to be distributed, or may be distributed according to the working capability information of each network node to be distributed, and the like, which is not limited in the present invention.

Optionally, when the QoS parameter includes a total transmission delay, the network device allocates, according to the QoS parameter of the service, a corresponding node QoS parameter to each network node to be allocated, including:

The network equipment allocates corresponding node transmission time delay for each network node to be allocated, and determines the transmission time delay to be decomposed according to the total transmission time delay and the physical transmission time delay, so that the transmission time delay of service flow between two network nodes is fully considered, the transmission time delay allocated to each node to be allocated is more accurate, and the transmission time delay requirement of service is further ensured.

Step 404: and the network equipment informs the corresponding network node to be distributed of the node QoS parameter of each network node to be distributed.

Optionally, when step 404 is executed, the following two ways are included:

the first mode is as follows: the network equipment sends the distributed node QoS parameters of each network node to be distributed to each corresponding network node to be distributed;

the second mode is as follows: and the network equipment determines the QoS grade corresponding to the QoS of each network node to be distributed according to the mapping relation between the node QoS parameter and the QoS grade set for each network node to be distributed, and sends the determined QoS grade of each network node to be distributed to each corresponding network node to be distributed.

Optionally, each network node to be allocated may have a mapping relationship between its own node QoS parameter and QoS class, for example, for node transmission delay, the node transmission delay corresponding to the first level is 1ms to 3ms, the node transmission delay corresponding to the second level is 3ms to 10ms, and the node transmission delay corresponding to the third level is 10ms to 100 ms. In this way, in the second manner, each network node to be allocated may send the mapping relationship between the node QoS parameter and the QoS class of the network node to the network device, and thus, the network device may determine, according to the mapping relationship of each network node to be allocated, the QoS class corresponding to the node QoS parameter allocated to each network node to be allocated directly, and send the determined QoS class of each network node to be allocated to each corresponding network node to be allocated. Each network node to be distributed processes the service flow according to the received QoS grade; in the first mode, the network device may directly send the node QoS parameter of each allocated network node to be allocated to each corresponding network node to be allocated; and each network node to be distributed determines the mapping relation of the QoS grade corresponding to the received node QoS parameter according to the mapping relation of the node QoS parameter and the QoS grade, and performs service processing according to the determined QoS grade.

When the network node to be allocated does not have the mapping relationship between the node QoS parameter and the QoS class of the network node to be allocated, optionally, the network node sends the node QoS parameter of each allocated network node to be allocated to each corresponding network node to be allocated according to a first mode; and each network node to be distributed processes the service according to the received node QoS parameter.

When the first mode is implemented in the PCC architecture, and when a network node includes a base station, an S-GW, and a P-GW, the network device sends a node QoS parameter of each allocated network node to be allocated to each corresponding network node to be allocated, which includes:

For example, in a PCC architecture implemented based on an EPC network, specifically, the network device is a P-CSCF, and the P-CSCF sends node QoS parameters of all network nodes to be allocated to a PCRF of an adjacent network node; and when the PCRF is the network node to be distributed, storing the node QoS parameter of the PCRF, and sending the node QoS parameters of other network nodes to be distributed to the next adjacent network node P-GW until the node QoS parameter of each network node to be distributed is sent to each corresponding network node to be distributed.

When the first mode is implemented in a network architecture for implementing a multi-path transmission service flow, and a network node includes at least one relay node, the network device sends a node QoS parameter of each allocated network node to be allocated to each corresponding network node to be allocated, including:

Specifically, the sending, by the network device, the node QoS parameter of each node to be allocated to each node to be allocated includes:

By adopting the service QoS control method in the above embodiment of the present invention, after a terminal initiates a service to a target device, a network device determines QoS parameters of the service, and determines at least one to-be-allocated network node in network nodes included in a transmission path between the terminal and the target device; distributing corresponding node QoS parameters for each network node to be distributed according to the QoS parameters of the services; and informing the corresponding network node to be distributed of the node QoS parameter of each distributed network node to be distributed. Therefore, the network device can allocate the QoS parameters of the service to each network node to be allocated, so that each network node to be allocated can transmit the service flow of the service according to the node QoS parameters allocated to the network node to be allocated by the network device, the service flow can be ensured to realize service QoS control through the whole transmission path according to the QoS parameters of the service, and the user experience is improved.

Based on the above embodiments, the embodiments of the present invention provide a method for implementing service QoS control, which is applied to a PCC architecture implemented based on an EPC network, taking User Equipment (UE) a in VoLTE voice service calling UE b as an example:

after the voice service VoLTE is sent to the UEB by the UEA, the QoS parameters of the voice service and the network nodes to be allocated in a transmission path between the UEA and the UEB, such as a base station (eNodeB, eNB), an S-GW, a P-GW and the like, are determined by the P-CSCF, corresponding node QoS parameters are allocated to each network node to be allocated according to the QoS parameters of the voice service, and the node QoS parameters of each allocated network node to be allocated are sent to each corresponding network node to be allocated, so that service QoS control is realized. The P-CSCF may send the node QoS parameter of each network node to be allocated through a procedure of establishing a media specific bearer or a procedure of updating a media specific bearer.

Specifically, referring to fig. 5, the network device implementing the service QoS control method is a P-CSCF, and the P-CSCF sends a node QoS parameter of each network node to be allocated through a process of establishing a media dedicated bearer, and the specific step of implementing the service QoS control includes:

step 501: and when the UE A initiates the voice service to the UE B, the UE A sends an INVITE message to a P-CSCFA in a calling network to initiate a session request.

Optionally, the INVITE message further carries a QoS parameter of the voice service determined by the UEA, or a service type of the voice service.

Step 502: and the P-CSCFA receives the INVITE message initiated by the UE A and forwards the INVITE message to a P-CSCFB in a called network based on the IMSORTE.

Optionally, the P-CSCFA may simultaneously send the P-CSCFA to the P-CSCFB with the geographical location information of the ue a carried in the INVITE message.

Step 503: and the P-CSCFB receives the INVITE message and forwards the INVITE message to a called party UEB.

After step 503, the P-CSCFB determines at least one network node to be allocated in the transmission path between the ue a and the ue b, such as eNBB, S-GWB and P-GWB in the called network.

Optionally, after receiving the INVITE message, the P-CSCFB may obtain the QoS parameter of the voice service carried in the INVITE message, or determine the QoS parameter of the voice service according to the service type carried in the INVITE message and the corresponding relationship between the service type and the QoS parameter. The QoS parameters of the voice traffic may include any one or a combination of: total transmission delay, packet loss rate, jitter, and bandwidth.

And the P-CSCFB allocates corresponding node QoS parameters for each network node to be allocated according to the QoS parameters of the voice service.

Generally, when the QoS parameter of the voice service includes a packet loss rate, jitter, or bandwidth, the packet loss rate, jitter, or bandwidth allocated to each network node to be allocated by the P-CSCFB is the same; when the QoS parameter of the voice service includes the total transmission delay, the total transmission delay needs to be decomposed into each network node to be allocated.

When the QoS parameter of the voice service includes the total transmission delay, in step 503, the P-CSCFB may acquire the geographical location information of the ue a through the INVITE message, and the P-CSCFB may also acquire the geographical location information of the ue b, so that the P-CSCFB may determine the distance between the ue a and the ue b through the geographical location information of the ue a and the geographical location information of the ue b; the P-CSCFB determines a physical transmission delay according to the determined distance between the UE A and the UE B; the P-CSCFB determines to-be-decomposed transmission delay according to the total transmission delay and the physical transmission delay, wherein the to-be-decomposed transmission delay is equal to the difference between the total transmission delay and the physical transmission delay; and the P-CSCFB allocates corresponding node transmission time delay for eNBB, S-GWB and P-GWB respectively according to the transmission time delay to be decomposed. Optionally, the P-CSCFB allocates a part of the transmission delay to be decomposed to a network node to be allocated in the calling network, and allocates the remaining part to the eNBB, S-GWB, and P-GWB.

Step 502 and step 503 are calling call request processing procedures.

From step 504 to step 516, the P-CSCFB may send the node QoS parameters allocated to the eNBB, the node QoS parameters of the S-GWB to the S-GWB, and the node QoS parameters of the P-GWB to the P-GWB through the procedure of establishing a media-specific bearer.

Step 504: and after receiving the INVITE message, the UEB sends a response ANSWER message to the P-CSCFB so that the P-CSCFB establishes a media specific bearer in a called network, wherein the ANSWER message is borne in the 183 message.

Step 505: and after receiving the answer message from the UEB, the P-CSCFB sends an AAR (AA-Request) message to the PCRFB.

Optionally, the AAR message may contain node QoS parameters of the eNBB, the S-GWB, and the P-GWB. Optionally, a new Attribute Value Pair (AVP) may be constructed for different network nodes, for example, to transmit the node QoS parameter of the P-GWB, a QoS-Target-P AVP is constructed, which has the following structure:

QoS-Target-P::＝<AVP Header:XXXX>

[Delay]

[Bandwidth]

[Jitter]

[Loss]

wherein, Delay represents node transmission Delay, Bandwidth represents node Bandwidth, Jitter represents node Jitter, and Loss represents node packet Loss rate, which are optional parameters.

The structures of the QoS-Target-S AVP constructed aiming at the S-GWB and the QoS-Target-eAVP constructed aiming at the eNBB are the same as the QoS-Target-P AVP, and the details are not repeated here.

Step 506: the PCRFB generates a QoS strategy of the voice service and sends a repeated authorization Request (Re-Auth-Request, RAR) message to the P-GWB to establish a media special bearer.

The RAR message also carries QoS-Target-P AVP, QoS-Target-S AVP and QoS-Target-eAVP.

Step 507: and the RAR message received by the P-GWB activates a new media special Bearer, allocates Bearer QoS information, and sends a Bearer establishment request (Create Bearer Requst) to the S-GWB.

In step 507, the P-GW saves the QoS-Target-P AVP in the RAR message, and sends the QoS-Target-S AVP and the QoS-Target-e AVP to the S-GWB through the Create Bearer request.

Step 508: and the S-GWB sends a Create Bearer Request to the MMEB to establish a new media special Bearer.

In step 508, the S-GWB stores the QoS-Target-S AVP in the Create beer Request sent by the P-GWB, and sends the QoS-Target-e AVP to the MMEB through the Create beer Request.

Step 509: the MMEB selects an evolved packet System Bearer Identity (EPS Bearer Identity) which is not allocated to the UEB, builds a Bearer installation Request (Bearer Setup Request) or a session management Request (SessionManagement Request) based on the EPS Bearer Identity, and sends the Bearer installation Request or the session management Request (SessionManagement Request) to the eNBs to build a media-specific Bearer.

In step 509, the Bearer Setup Request/Session Management Request includes QoS-Target-e AVP, so that in step 509, the QoS-Target-e AVP in the Bearer Setup Request/Session Management Request may be sent to the eNBB.

Step 510: the eNBB maps the EPS Bearer QoS to a Radio Bearer QoS, and establishes an RRC Connection Reconfiguration message (RRC Connection Reconfiguration) based on the Radio Bearer QoS and sends the RRC Connection Reconfiguration message to the UE B, wherein the RRC Connection Reconfiguration message comprises the Radio Bearer QoS, the Session Management Request and the EPS RB Identity.

In steps 511-516, the UEB responds to the establishment of a media specific bearer in the called network, a Response message (Response) is based on a reverse path segment reply, and finally replies to the P-CSCFB.

Based on the above procedures, establishing a media-specific bearer in the called network, and based on the above procedures, the P-CSCFB allocates the node QoS parameters of the P-CSCFB to the eNBB, the S-GWB, and the P-GWB, and sends the node QoS parameters to the corresponding eNBB, the S-GWB, and the P-GWB. The media special bearer in the called network is as follows:

P-CSCFB<->P-GWB<->S-GWB<->eNBB<->UEB

517: after the P-CSCFB establishes a media special bearer in the called network, the P-CSCFA in the calling network responds to an ANSWER message corresponding to call establishment based on an IMS CORE, and the ANSWER message is borne in the 183 message.

Optionally, in step 503, since the P-CSCFB further allocates a part of the transmission delay to be resolved to the network node to be allocated in the calling network, the P-CSCFB notifies the P-CSCFA of the QoS parameter that needs to be allocated to the network node to be allocated in the calling network through the ANSWER message.

The ANSWER message is an SIP message, optionally, a header field in the SIP message may include a QoS parameter that needs to be allocated to a network node to be allocated in the calling network, and a Session Description Protocol (SDP) field in the SIP message may include a QoS parameter that needs to be allocated to a network node to be allocated in the calling network. For example, response attribute lines are extended in the SDP, and each attribute line corresponds to one of transmission delay, jitter, packet loss rate, and bandwidth.

After step 517, the P-CSCFA determines the network nodes to be allocated in the calling network, such as eNBA, S-GWA and P-GWA in the calling network.

The P-CSCFA allocates the QoS parameters to be allocated to the network node to be allocated in the calling network to the eNBA, the S-GWA, and the P-GWA, and the specific allocation procedure is the same as the P-CSCFA, and is not described herein again.

The following steps 518 to 529 are all procedures of establishing a media-specific bearer in the calling network, and the P-CSCFA may send the node QoS parameters allocated to the eNBA, send the node QoS parameters of the S-GWA to the S-GWA, and send the node QoS parameters of the P-GWA to the P-GWA through the procedures of establishing a media-specific bearer. The specific processes of step 518 to step 529 are the same as the processes of step 505 to step 516 for the called network to establish a media specific bearer, and this is not described in detail herein.

After the special media bearer in the calling network is established, the special media bearer in the calling network is as follows:

UEA<->eNBA<->S-GWA<->P-GWA<->P-CSCFA

the establishment of the end-to-end media special bearing is realized based on the procedures, and the complete transmission path is as follows:

UEA<->eNBA<->S-GWA<->P-GWA<->P-CSCFA<->P-CSCFB<->P-GWB<->S-GWB<->eNBB<->UEB

of course, the P-CSCFA and the P-CSCFB may also send the node QoS parameter allocated to each to-be-allocated network node to each corresponding to-be-allocated network node through a procedure of updating a media-specific bearer. For example, when the P-CSCFB determines that the network nodes to be allocated in the called network are P-GWB, S-GWB and eNBB, the node QoS parameters allocated to P-GWB are transmitted by QoS-Target-P AVP, the node QoS parameters allocated to S-GWB are transmitted by QoS-Target-S AVP, and the node QoS parameters allocated to eNBB are transmitted by QoS-Target-e AVP, the specific procedure is as follows:

and a, the P-CSCFB sends an AAR message to the PCRFB, wherein the message type is update (update) and carries QoS-Target-e AVP, QoS-Target-S AVP and QoS-Target-P AVP.

And b, after receiving the AAR message, the PCRFB sends the QoS-Target-e AVP, the QoS-Target-SAVP and the QoS-Target-P AVP to the P-GWB through an RAR message.

And c, after receiving the QoS-Target-e AVP, the QoS-Target-S AVP and the QoS-Target-P AVP, the P-GWB stores the QoS-Target-P AVP and sends the AVP carrying the QoS-Target-S AVP and the QoS-Target-e AVP to the S-GWB.

And d, after receiving the QoS-Target-S AVP and the QoS-Target-e AVP, the S-GWB stores the QoS-Target-SAVP and sends the QoS-Target-e AVP to the MMEB.

e, the MMEB continuously forwards the received QoS-Target-e AVP to the eNBB.

In this way, the P-CSCFB may send the node QoS parameter allocated to each to-be-allocated network node in the called network to the corresponding to-be-allocated network node.

Through the above discussion, in the PCC architecture implemented based on the EPC network, after a network device (such as a P-CSCF, etc.) allocates a corresponding node QoS parameter to each network node to be allocated, the node QoS parameter of each network node to be allocated may be sent to each corresponding network node to be allocated through a procedure of establishing a media-specific bearer or a procedure of updating the media-specific bearer, thereby implementing service QoS control.

Based on the above embodiments, another method for implementing service QoS control is provided in an embodiment of the present invention, and is applied to a network architecture for implementing multipath transmission of service flows, where a network device implementing the service QoS control method is a controller, and a network node in a transmission path is a relay node, as shown in fig. 6, a specific process includes:

step 601: after a terminal initiates a service to a target device, the controller acquires a QoS parameter of the service.

The controller obtains the QoS parameter of the service in the following two ways:

the controller takes default QoS as a QoS parameter of the service; or

And when the controller and the SIP server are different logic entities, the controller receives the QoS parameters of the service sent by the SIP server.

The acquiring, by the SIP server, the QoS parameter of the service may include the following steps:

when a terminal prepares to initiate a service to a target device, sending a service request message (namely an INTITE message) to the SIP server, wherein the service request message is an SIP message, and a header field in the SIP message contains a QoS parameter of the service; or the SDP field in the SIP message contains the QoS parameter of the service;

the SIP server takes the default QoS as the QoS parameter of the service;

the server obtains the QoS parameters of the service by interacting with a service server (such as HSS).

Step 602: the controller determines a transmission path between the terminal and the target device, and determines at least one to-be-allocated network node among network nodes of the transmission path.

The controller may determine multiple alternative relay paths between the terminal and the target device in accordance with conventional techniques.

The controller can acquire the working capacity information and the statistical information of the relay node by sending the FEATURES message and the STATISTICS message to the relay node, and select one of the multiple alternative relay paths as a transmission path.

Specifically, when selecting a transmission path from the multiple candidate relay paths, the method includes:

and selecting one alternative relay path which contains the working capacity information and the statistical information of each relay node and accords with the QoS parameters of the service as a transmission path from the multiple alternative relay paths. In this way, the screened transmission path can only realize the transmission of the service flow of the service.

After determining a transmission path, the controller determines at least one network node to be allocated in a relay node in the transmission path.

Step 603: and the controller allocates a corresponding node QoS parameter to each network node to be allocated according to the QoS parameter of the service, and notifies the allocated node QoS parameter of each network node to be allocated to each corresponding network node to be allocated.

And when the QoS parameters of the service comprise total transmission delay, the controller decomposes the total transmission delay and distributes the total transmission delay to each network node to be distributed. And when the QoS parameters of the service comprise packet loss rate, jitter or bandwidth, the controller directly allocates the packet loss rate, the jitter or the bandwidth to each network node to be allocated without decomposition.

The decomposing of the total transmission delay by the controller, when the total transmission delay is distributed to each network node to be distributed, includes:

the controller acquires the geographical position information of the terminal and the geographical position information of the target device;

the controller determines the distance between the terminal and the target equipment according to the acquired geographical position information of the terminal and the geographical position information of the target equipment;

the controller determines physical transmission delay according to the determined distance between the terminal and the target equipment;

the controller determines to-be-decomposed transmission delay according to the total transmission delay and the physical transmission delay, wherein the to-be-decomposed transmission delay is equal to the difference between the total transmission delay and the physical transmission delay;

and the controller allocates corresponding node transmission time delay for each network node to be allocated according to the transmission time delay to be decomposed.

Optionally, when the controller notifies the corresponding each to-be-allocated network node of the node QoS parameter of each to-be-allocated network node that is allocated, the method includes:

the first mode is as follows: the controller respectively sends the node QoS parameters of each node to be distributed to each node to be distributed;

the second mode is as follows: and determining the QoS grade corresponding to the QoS of each network node to be distributed according to the mapping relation between the node QoS parameter and the QoS grade set for each network node to be distributed, and sending the determined QoS grade of each network node to be distributed to each corresponding network node to be distributed.

In a first manner, the controller may send an ADD-PATH message to each network node to be allocated, where the ADD-PATH message carries a node QoS parameter of each network node to be allocated. Wherein, ADD multiple QoS parameter fields in the said ADD-PATH message, each QoS parameter field includes a node QoS parameter, such as node transmission delay, jitter, bandwidth or packet loss rate, etc.

After receiving the corresponding node QoS parameter, the network node to be allocated may directly transmit the service flow of the service according to the node QoS parameter, or may determine, according to a mapping relationship between a preset node QoS parameter and a QoS class, a QoS class corresponding to the node QoS parameter, and transmit the service flow of the service according to the QoS class. And after receiving the corresponding QoS grade, the network node to be distributed directly transmits the service flow of the service according to the QoS grade.

Based on the above embodiment, the present invention further provides a network device, as shown in fig. 7, where the network device 700 includes: a first determining unit 701, a second determining unit 702, a processing unit 703 and a transmitting unit 704, wherein,

a first determining unit 701, configured to determine a QoS parameter of a service after a terminal initiates the service to a target device;

a second determining unit 702, configured to determine at least one to-be-allocated network node in a transmission path between the terminal and the target device, where the to-be-allocated network node is a network node in the transmission path;

a processing unit 703, configured to allocate, according to the QoS parameter of the service, a corresponding node QoS parameter for each network node to be allocated;

a sending unit 704, configured to notify the node QoS parameter of each allocated network node to be allocated to each corresponding network node to be allocated.

Optionally, the network device 700 further includes:

the first determining unit 701 is specifically configured to:

Optionally, the network device 700 further includes:

the first determining unit 701 is specifically configured to:

Optionally, the first determining unit 701 is specifically configured to:

and taking the default QoS parameter as the QoS parameter of the service.

Optionally, the network device 700 further includes:

the first determining unit 701 is specifically configured to: and taking the QoS parameter carried in the service response message as the QoS parameter of the service.

Optionally, the first determining unit 701 is configured to send a QoS parameter request message to a service server;

the network device 700 further comprises a receiving unit, configured to receive the QoS parameter returned by the service server based on the QoS parameter request message;

the first determining unit 701 is further configured to use the received QoS parameter as the QoS parameter of the service.

Optionally, the network device 700 further includes:

the first determining unit 701 is specifically configured to use the received QoS parameter as the QoS parameter of the service.

Optionally, when receiving the service request message carrying the QoS parameter of the service sent by the terminal, the receiving unit is specifically configured to:

Optionally, when the transmission path is a relay path, before the second determining unit 702 determines at least one network node to be allocated, the method further includes:

Optionally, the third determining unit is specifically configured to:

Optionally, when the QoS parameter includes a total transmission delay, the processing unit 703 is specifically configured to:

Optionally, the sending unit 704 is specifically configured to:

Optionally, when the network node includes a base station, an S-GW, and a P-GW, the sending unit 704 is specifically configured to, when sending the node QoS parameter of each allocated network node to be allocated to each corresponding network node to be allocated:

sending a node QoS parameter of a first to-be-allocated network node to the first to-be-allocated network node, where the first to-be-allocated network node is one of the to-be-allocated network nodes and the network device 700 does not include a network node therebetween;

and sending the node QoS parameter of the distributed second network node to be distributed to the second network node to be distributed through at least one network node, wherein the second network node to be distributed is one network node to be distributed, which contains the at least one network node, between the network node to be distributed and the network device 700.

Optionally, when the network node includes at least one relay node, the sending unit 704 is specifically configured to, when sending the node QoS parameter of each allocated network node to be allocated to each corresponding network node to be allocated, to:

Optionally, when the sending unit 704 sends the node QoS parameter of each node to be allocated to each node to be allocated, specifically, to:

It should be noted that, the division of the units in the embodiments of the present invention is schematic, and is only a logical function division, and there may be another division manner in actual implementation, for example, the first determining unit and the second determining unit may be the same determining unit or different determining units, or some features may be omitted, or may not be executed. In addition, functional units in the embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit.

The integrated unit, if implemented in the form of a software functional unit and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present application may be substantially implemented or contributed by the prior art, or all or part of the technical solution may be embodied in a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, a network device, or the like) or a processor (processor) to execute all or part of the steps of the method according to the embodiments of the present application. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.

By adopting the service QoS control method and the network equipment provided by the embodiment of the invention, after a terminal initiates a service to target equipment, the network equipment determines QoS parameters of the service, and determines at least one network node to be allocated in network nodes contained in a transmission path between the terminal and the target equipment; distributing corresponding node QoS parameters for each network node to be distributed according to the QoS parameters of the services; and informing the corresponding network node to be distributed of the node QoS parameter of each distributed network node to be distributed. Therefore, the network device can allocate the QoS parameters of the service to each network node to be allocated, so that each network node to be allocated can transmit the service flow of the service according to the node QoS parameters allocated to the network node to be allocated by the network device, the service flow can be ensured to realize service QoS control through the whole transmission path according to the QoS parameters of the service, and the user experience is improved.

While preferred embodiments of the present invention have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including preferred embodiments and all such alterations and modifications as fall within the scope of the invention.

It will be apparent to those skilled in the art that various modifications and variations can be made in the embodiments of the present invention without departing from the spirit or scope of the embodiments of the invention. Thus, if such modifications and variations of the embodiments of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to encompass such modifications and variations.

Claims

1. A method for controlling QoS of service is characterized by comprising the following steps:

the network device determines at least one to-be-allocated network node in a transmission path between the terminal and the target device, wherein the at least one to-be-allocated network node is a network node in the transmission path, the transmission path is a media-specific bearer, and the network node comprises a base station, a serving gateway (S-GW) and a packet data gateway (P-GW);

the network device sends the node QoS parameter of each allocated network node to be allocated to each corresponding network node to be allocated, which specifically includes:

2. The method of claim 1, wherein the network device determining the QoS parameter for the traffic comprises:

3. The method of claim 2, wherein the network device receives a service request message sent by the terminal, and the service request message carries the QoS parameter of the service, including:

4. A method according to any of claims 1-3, wherein the QoS parameters of the traffic comprise any one or a combination of: total transmission delay, packet loss rate, jitter, bandwidth.

5. The method of claim 4, wherein when the QoS parameter comprises a total transmission delay, the network device allocates a corresponding node QoS parameter for each to-be-allocated network node according to the QoS parameter of the traffic, comprising:

6. A network device, comprising:

a second determining unit, configured to determine at least one to-be-allocated network node in a transmission path between the terminal and the target device, where the at least one to-be-allocated network node is a network node in the transmission path, the transmission path is a media-specific bearer, and the network node includes a base station, a serving gateway S-GW, and a packet data gateway P-GW;

a sending unit, configured to send the node QoS parameter of each allocated network node to be allocated to each corresponding network node to be allocated, where the sending unit specifically includes:

7. The network device of claim 6, further comprising:

the first determining unit is specifically configured to:

8. The network device of claim 6, further comprising:

the first determining unit is specifically configured to:

9. The network device of claim 6, wherein the first determining unit is specifically configured to:

and taking the default QoS parameter as the QoS parameter of the service.

10. The network device of claim 6, further comprising:

11. The network device of claim 6, wherein the first determining unit is configured to send a QoS parameter request message to a traffic server;

12. The network device of claim 6, further comprising:

13. The network device of claim 12, wherein the receiving unit is specifically configured to:

14. A network device according to any of claims 6-13, wherein the QoS parameters of the traffic comprise any one or a combination of: total transmission delay, packet loss rate, jitter, bandwidth.

15. The network device of claim 14, wherein when the QoS parameter includes a total transmission delay, the processing unit is specifically configured to: