CN102264154B - Customer service control method in a kind of backhaul network and system - Google Patents
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Abstract
The invention discloses the customer service control method in a kind of backhaul network and system, all can be judged access device corresponding after user's roaming switch and access link by business control nodes, and the access device corresponding to after being sent to switch by the user service information for this user, this access device access link corresponding after being applied to switch by the user service information from business control nodes.Customer service control method in backhaul network of the present invention and system, it is possible to ensure customer service seriality in backhaul network under user's roaming condition, improve user satisfaction.
Description
Technical Field
The present invention relates to a communication network, and in particular, to a method and a system for controlling user traffic in a backhaul network.
Background
With the continuous popularization and development of telecommunication services, people have higher and higher requirements on service quality, which not only requires larger bandwidth, lower delay and more stable quality, but also gradually puts forward the requirements on nomadism, mobility and the like. For example, the user may want his or her account to be available on any terminal, or may want his or her terminal to enjoy an uninterrupted service experience while on the move. In order to meet the needs of users, services such as nomadic accounts and mobile terminals are developed, and in terms of specific service forms, nomadic services are provided based on a traditional fixed network or mobile services are provided by a brand new mobile network. Regardless of the traffic based on the fixed Network or the mobile Network, a Backhaul Network (Backhaul Network) is required to carry the traffic flow of the user.
The backhaul network is a network from a Service access point to a Service control Node (SN). For example, for a Fixed Broadband user, a Network from a Broadband home gateway (RG) to a Broadband Access Server (BAS) is called a Fixed Backhaul Network (Fixed Backhaul Network); for the second generation Mobile Network users, the Network from the Mobile base station to the base station controller is called Mobile Backhaul Network (Mobile Backhaul Network); in addition, the backhaul network includes a backhaul network of a Wireless Local Access (WLAN), a backhaul network of a Business user (Business Customer) (belonging to a fixed backhaul network), and the like.
Whether the user account is nomadic or the user terminal is mobile, the Roaming (Roaming) scenario can be concluded for the user, that is, the user service is switched between different access nodes. For example, a broadband user logs in through the same account by successively using terminal devices under different home gateways, a mobile terminal moves in coverage areas of different base stations and WLAN Access Points (APs), and the like.
For the two scenarios, when the user roams, the judgment and execution point of the user service switching includes the user access node and the service control node, and the intermediate backhaul network does not participate in the user service switching, and only indiscriminately forwards the user service flow after the switching, that is, the backhaul network is considered to be capable of providing an adequate transmission pipeline for the service flows before and after the switching.
With the rapid development of user bandwidth requirements, resources of a backhaul network gradually cannot meet undifferentiated transmission pipelines of all user traffic flows, solutions such as multicast (Multicasting) transmission, differential service (Diffserv) type transmission based on traffic priority and the like firstly appear in a backhaul network of a fixed network, and with the rapid development of a mobile broadband, methods for optimizing the transmission efficiency of the backhaul network and improving the utilization rate of transmission resources are also gradually deployed in a mobile backhaul network, and some operators even integrate fixed and mobile backhaul networks to uniformly deploy the above strategies.
In the current fixed backhaul network, for the authority Control of user multicast, priority management of different users and different service flows, security policy of user service flows, etc., there has been an effective deployment method, that is, through message interaction between a service Control Node and an Access device (Access Node, an upstream device of a service Access point, which belongs to a backhaul network element), user service information is sent from the service Control Node to the Access device and corresponds to an Access link (AC) of the user, where one of the message interaction protocols is an Access Node Control Protocol (ANCP). The access link is typically the link between the access equipment (AN) and the access node RG/AP/mobile base station.
Aiming at bandwidth management and service control requirements of a backhaul network, especially a backhaul network of a fixed network (such as a home gateway to a broadband access server), a current ANCP protocol supports strategies such as speed limitation of uplink traffic of a user, control of downlink multicast service and the like, but only supports service control of a fixed broadband user at present.
For nomadic scenes of fixed broadband users, the current solution can only be processed in such a way that the users go offline and then online, i.e. before and after the users switch, the users are regarded as two independent user sessions; after the user is on-line again, the corresponding controllable multicast services are authenticated again to refresh the access control state.
Therefore, the user service does not have continuity in the backhaul network under the current user roaming condition, which is obviously not beneficial to the development of the user service and can obviously reduce the user satisfaction.
Disclosure of Invention
In view of the above, the main objective of the present invention is to provide a method and a system for controlling a user service in a backhaul network, so as to ensure continuity of the user service in the backhaul network under a user roaming condition and improve user satisfaction.
In order to achieve the purpose, the technical scheme of the invention is realized as follows:
a method for controlling user traffic in a backhaul network, the method comprising the steps of:
the service control node judges the access equipment and the access link corresponding to the user after roaming switching, and sends the user service information aiming at the user to the access equipment corresponding to the switching, and the access equipment applies the user service information from the service control node to the access link corresponding to the switching.
When the access devices before and after the user roaming switching are the same, the process of applying the user service information comprises the updating of an access link;
when the access devices before and after the user roaming switching are different, the process of applying the user service information further comprises the following steps: and canceling the user service strategy in the user service information aiming at the access equipment before the user roaming switching.
The access node is an Access Point (AP), and the service control node is an Access Concentrator (AC);
the access equipment before and after the user roaming switching is the same, and the user roaming switching is as follows: a user who has accessed access to access device 1 from AP1 through access link 1, moves from the coverage area of AP1 to the coverage area of AP2 connected to access device 1 through access link 2, and completes a handoff from AP1 to AP 2;
the process of sending and applying the user service information comprises the following steps:
the access concentrator AC sends an updating message to the access equipment 1, and informs the access equipment 1 to switch the user service strategy corresponding to the user from the access link 1 to the access link 2; the access device 1 completes the handover.
The access node is RG, and the service control node is broadband access server BAS;
the access devices before and after the user roaming switching are different, and the user roaming switching is as follows: under the condition that a user who accesses the access equipment 1 through the home gateway RG1 and the access link 1 is not offline, the same account is adopted by the RG2 to access the access equipment 2 through the access link 2;
the process of sending and applying the user service information comprises the following steps:
the BAS sends the user service policy corresponding to the user to the access device 2, and the access device 2 applies the received user service policy to the corresponding access link 2.
Before the user roaming handover, the method further comprises: the BAS issues the user service strategy to the access equipment 1;
the revocation process of the user service policy comprises the following steps: the BAS sends a revocation message to the access device 1 to revoke the user service policy corresponding to the access link 1 in the access device 1.
The access node is an evolution NodeB eNodeB, and the service control node is a service gateway S-GW;
the access devices before and after the user roaming switching are different, and the user roaming switching is as follows: a user who has accessed access to access device 1 through eNodeB1, access link 1, moves from the eNodeB1 coverage area to the coverage area of eNodeB2, which is connected to access device 2 through access link 2, and completes a handover from eNodeB1 to eNodeB 2;
the process of sending and applying the user service information comprises the following steps:
the S-GW sends the authorization information of the user to the access device 2, and the access device 2 applies the received authorization information to the corresponding access link 2, and sends the multicast program requested by the user to the eNodeB2 through the access link 2 after copying the multicast program.
Before the user roaming handover, the method further comprises: a user requests a multicast program in an eNodeB1 coverage area and obtains authentication from an S-GW through an access device 1 connected with an eNodeB 1; after the S-GW successfully authenticates, the authorization information of the user is sent to the access equipment 1, and the access equipment 1 receives the authorization information of the user;
the revocation process of the user service policy comprises the following steps: the S-GW sends a revocation message to the access device 1, and if no user has requested the multicast program under eNodeB1 at this time, the access device 1 stops copying the multicast program to the access link 1; otherwise, the access device 1 cancels the authorization information of the user under the access link 1.
The user service information comprises a user service strategy and a user service execution state including an authentication state;
the control protocol used for communication between the service control node and the AN is AN access point control protocol (ANCP) or a virtual broadband server (VBAS) protocol.
A user service control system in a backhaul network comprises an access node, access equipment and a service control node; wherein,
the service control node is used for judging the access equipment and the access link corresponding to the user after roaming switching, and sending the user service information aiming at the user to the access equipment corresponding to the switched user;
and the access equipment corresponding to the switched access equipment is used for applying the user service information from the service control node to the access link corresponding to the switched access link.
When the access devices before and after the user roaming switching are the same, the corresponding access device after the switching is used for carrying out the process of applying the user service information including the updating of the access link;
when the access devices before and after the user roaming switching are different, the corresponding access device after the switching is further used for carrying out the process of applying the user service information including the user service strategy in the user service information cancelled by the access device before the user roaming switching.
The access node is an AP, and the service control node is an access concentrator AC;
the access equipment before and after the user roaming switching is the same, and the user roaming switching is as follows: a user who has accessed access to access device 1 from AP1 through access link 1, moves from the coverage area of AP1 to the coverage area of AP2 connected to access device 1 through access link 2, and completes a handoff from AP1 to AP 2;
in the process of sending and applying the user service information,
the access concentrator is used for sending an update message to the access equipment 1 and informing the access equipment 1 to switch a user service policy corresponding to a user from the access link 1 to the access link 2;
the access device 1 is configured to complete handover according to the update message sent by the access concentrator.
The access node is RG, and the service control node is BAS;
the access devices before and after the user roaming switching are different, and the user roaming switching is as follows: under the condition that a user who accesses the access equipment 1 through the home gateway RG1 and the access link 1 is not offline, the same account is adopted by the RG2 to access the access equipment 2 through the access link 2;
in the process of sending and applying the user service information,
the BAS is used for sending the user service strategy corresponding to the user to the access equipment 2;
the access device 2 is configured to apply the received user service policy to the corresponding access link 2.
BAS are further used for: issuing a user service policy to an access device 1 before the user roaming handover;
in the revocation process of the user service policy, the BAS is configured to send a revocation message to the access device 1, and revoke the user service policy corresponding to the access link 1 stored in the access device 1.
The access node is eNodeB, and the service control node is S-GW;
the access devices before and after the user roaming switching are different, and the user roaming switching is as follows: a user who has accessed access to access device 1 through eNodeB1, access link 1, moves from the eNodeB1 coverage area to the coverage area of eNodeB2, which is connected to access device 2 through access link 2, and completes a handover from eNodeB1 to eNodeB 2;
in the process of sending and applying the user service information,
the S-GW is used for sending the authorization information of the user to the access equipment 2;
the access device 2 is configured to apply the received authorization information to the corresponding access link 2, and copy the multicast program requested by the user and send the copied multicast program to the eNodeB2 through the access link 2.
The S-GW is further configured to: authenticating the user, and sending the authorization information of the user to the access equipment 1 after the authentication is successful;
in the revocation process of the user service policy, the S-GW is configured to send a revocation message to the access device 1, and control the access device 1 to stop copying the multicast program to the access link 1 when no user has requested the multicast program under the eNodeB 1; when a user requests the multicast program under eNodeB1, controlling access device 1 to withdraw the authorization information of the user under access link 1.
The user service information comprises a user service strategy and a user service execution state including an authentication state;
and the control protocol used for communication between the service control node and the access equipment is an ANCP protocol or a VBAS protocol.
The method and the system for controlling the user service in the backhaul network can ensure the continuity of the user service in the backhaul network under the condition of user roaming and improve the user satisfaction.
Drawings
Fig. 1 is a diagram of a user traffic control device in a backhaul network according to an embodiment of the present invention;
fig. 2 is a simplified diagram of a user traffic control flow in the backhaul network of the present invention;
fig. 3 is a system diagram of controlling user traffic in a backhaul network according to a first embodiment of the present invention;
fig. 4 is a flowchart illustrating a user traffic control in a backhaul network according to a first embodiment of the present invention;
fig. 5 is a system diagram of controlling user traffic in a backhaul network according to a second embodiment of the present invention;
fig. 6 is a flowchart illustrating a user traffic control in a backhaul network according to a second embodiment of the present invention;
fig. 7 is a system diagram of controlling user traffic in a backhaul network according to a third embodiment of the present invention;
fig. 8 is a flowchart of user traffic control in a backhaul network according to a third embodiment of the present invention.
Detailed Description
Generally, when a user performs roaming handover between different access nodes, a service control node sends user service information (such as service policy information) for the user to an access device corresponding to a new access node in real time, so as to implement continuity of user services in a backhaul network. Aiming at the scene that a user roams among different access nodes under the same access equipment, a service control node can only send access link information before and after the user is switched to the access equipment without sending specific service information; the access device may then switch the user traffic policy, the enforcement state (e.g., the authentication state), etc. to the new access link based on the received information.
A system that can implement the above operational concepts is shown in fig. 1. Referring to fig. 1, fig. 1 is a diagram of a user traffic control apparatus in a backhaul network according to an embodiment of the present invention, where the apparatus includes an access node, an access device, and a traffic control node, which are connected in sequence and have a membership relationship. The user can access the access device through the access node to obtain the service control service provided by the service control node.
Specifically, after learning that the user roams, the service control node may determine the access device and the access link corresponding to the user after roaming handover, and may send the service information of the access link corresponding to the user after handover to the access device after handover; and after receiving the service information sent by the service control node, the switched access equipment applies the service information to the switched access link of the user.
The user service information sent by the service control node not only includes the service policy of the user, but also includes the user service execution states such as the authentication state, etc., so as to ensure that the user does not need to re-authenticate after switching to a new access link. Moreover, aiming at the scene that the user roams among different access nodes under the same access equipment, the service control node can only send the updating message to the access equipment without sending specific service information; the access device can switch the user service information such as user service strategy, authentication state and the like to a new access link according to the received update message. The update message typically includes access link information before and after the handover of the user.
Furthermore, in addition to sending the service information to the access device after the handover, the service control node may also send a revocation message to the access device before the handover to revoke the user service policy stored in the access device before the handover. If the user respectively corresponds to different access links of the same access device before and after switching, only the updating message needs to be sent to the access device, and the revocation message does not need to be sent.
In addition, the above described operation process is not only applicable to nomadic scenes of fixed network users, but also applicable to terminal mobile scenes of mobile users; and, in the operation process, the control protocol between the service control node and the access device may adopt an ANCP protocol or a virtual broadband server (VBAS) protocol.
The above described operational concepts can be represented as shown in fig. 2. Referring to fig. 2, fig. 2 is a simplified diagram of a user traffic control process in a backhaul network according to the present invention, where the process includes the following steps:
step 210: after the user roams, the service control node judges the access equipment and the access link corresponding to the user after roaming switching.
Step 220: and the service control node sends the user service information corresponding to the switched access link to the switched corresponding access equipment.
Step 230: the access device applies the user service information from the service control node to the corresponding access link after switching.
The operational idea described in fig. 2 can be illustrated by the three embodiments of fig. 3 to 8.
Referring to fig. 3, fig. 3 is a diagram of a user service control system in a backhaul network according to a first embodiment of the present invention, where the system includes AN access node RG, AN, and a service control node BAS, which are connected in sequence and have AN affiliation relationship. The user can access the AN through the access node RG to obtain the service control service provided by the service control node BAS.
Specifically, the system shown in fig. 3 can implement the process shown in fig. 4, which includes the following steps:
step 401: the users access the network from the RG1 through the access link AC1, and the service control node BAS issues user service policies corresponding to the access link AC1 to the AN 1.
Step 402: the user dials from the RG2 using the same account number without going offline.
Step 403: the service control node BAS determines that the user is online and dials up via AN2 via the access link AC 2.
Step 404: the service control node BAS sends the user service policy corresponding to the user to the AN 2.
Step 405: after receiving the user service policy sent by the service control node, the AN2 applies the user service policy to the corresponding access link AC 2.
Step 406: the service control node BAS sends a revocation message to the AN1 to revoke the user service policy corresponding to the user stored in the AN 1; the AN1, upon receiving the revocation message, performs the corresponding revocation process.
Referring to fig. 5, fig. 5 is a diagram of a user service control system in a backhaul network according to a second embodiment of the present invention, where the system includes AN Access node AP and AN Access node AN that are connected in sequence and have a membership relationship, and AN Access Concentrator (Access Concentrator) serving as a service control node. The user can access the AN through the access node AP to obtain the service control service provided by the access concentrator.
Specifically, the system shown in fig. 5 can implement the process shown in fig. 6, which includes the following steps:
step 601: the user accesses the network from the AP1 through the access link AC1, and the access concentrator which is used as a service control node issues the user service policy corresponding to the access link AC1 to the AN 1.
Step 602: the user moves from AP1 coverage to AP2 coverage and completes the handoff from AP1 to AP 2.
Step 603: due to participation in the process of switching between the AP1 and the AP2, the access concentrator can determine the AN1 corresponding to the AP2 and the corresponding access link AC 2.
Step 604: the access concentrator sends AN update message to the AN1 informing the AN1 to switch the user traffic policy corresponding to the user from the AC1 to the AC 2.
Step 605: after receiving the update message from the access concentrator, the AN1 applies the user traffic policy sent by the access concentrator for the user to the corresponding access link AC 2.
Referring to fig. 7, fig. 7 is a diagram of a user service control system in a backhaul network according to a third embodiment of the present invention, where the system includes AN access node eNodeB (evolved NodeB), AN, and a service control node S-GW (Serving Gateway) that are sequentially connected and have AN affiliation relationship. The user can access the AN through the access node eNodeB to obtain the service control service provided by the service control node S-GW.
Specifically, the system shown in fig. 7 can implement the process shown in fig. 8, which includes the following steps:
step 801: the user requests the multicast program in the coverage area of eNodeB1, and obtains authentication from the S-GW through AN1 connected to eNodeB1, as follows: authentication is obtained through the ANCP protocol between AN1 and the S-GW.
Step 802: after the S-GW successfully authenticates, the authorization information of the user is sent to the AN1, and the AN1 receives the authorization information of the user.
Specifically, the S-GW may send the authorization information to the AN1 through the ANCP protocol, and if at this time, no user has yet requested the multicast program under the eNodeB1, that is, no authorization information of the multicast program is yet on the AC1 between the AN1 and the eNodeB1, the AN1 applies the authorization information to the AC1 and copies the multicast program to the eNodeB 1; if there is already a user ordering the multicast program under eNodeB1 at this time, i.e., authorization information for the multicast program already exists on AC1, AN1 records the authorization information.
Step 803: users move from eNodeB1 coverage to eNodeB2 coverage and handover from eNodeB1 to eNodeB2 as follows: mobile handover is realized among eNodeB1, eNodeB2, MME (mobility management entity), and S-GW.
Step 804: the S-GW determines the AN2 corresponding to the eNodeB2 and the corresponding access link AC2
Step 805: the S-GW sends the authorization information for the user to AN 2.
Step 806: after receiving the authorization information sent by the service control node, the AN2 applies the authorization information to the corresponding access link AC2, copies the multicast program, and sends the copied multicast program to the eNodeB2 through the AC 2.
In addition, the S-GW may also send a revocation message to the AN1 to revoke the authorization information corresponding to the user stored in the AN 1. If no users have requested the multicast program at this point in time by eNodeB1, then AN1 stops copying the multicast program to AC 1; otherwise, the AN1 revokes the user's authorization information under the AC 1.
In summary, the method and the system for controlling the user service in the backhaul network can ensure the continuity of the user service in the backhaul network under the condition of user roaming, and improve the user satisfaction degree.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, and any modifications, equivalents, improvements, etc. that are within the spirit and principle of the present invention should be included in the present invention.
Claims (16)
1. A method for controlling user traffic in a backhaul network, the method comprising:
the service control node judges the access equipment and the access link corresponding to the user after roaming switching, and sends the user service information aiming at the user to the access equipment corresponding to the switched user, and the access equipment applies the user service information from the service control node to the access link corresponding to the switched user;
the user service information comprises a user service strategy and a user service execution state including an authentication state.
2. The method of claim 1,
when the access devices before and after the user roaming switching are the same, the process of applying the user service information comprises the updating of an access link;
when the access devices before and after the user roaming switching are different, the process of applying the user service information further comprises the following steps: and canceling the user service strategy in the user service information aiming at the access equipment before the user roaming switching.
3. The method of claim 2, wherein the access node is an Access Point (AP), and the traffic control node is an Access Concentrator (AC);
the access equipment before and after the user roaming switching is the same, and the user roaming switching is as follows: a user who has accessed access to access device 1 from AP1 through access link 1, moves from the coverage area of AP1 to the coverage area of AP2 connected to access device 1 through access link 2, and completes a handoff from AP1 to AP 2;
the process of sending and applying the user service information comprises the following steps:
the access concentrator AC sends an updating message to the access equipment 1, and informs the access equipment 1 to switch the user service strategy corresponding to the user from the access link 1 to the access link 2; the access device 1 completes the handover.
4. The method of claim 2, wherein the access node is an RG, and the traffic control node is a broadband access server BAS;
the access devices before and after the user roaming switching are different, and the user roaming switching is as follows: under the condition that a user who accesses the access equipment 1 through the home gateway RG1 and the access link 1 is not offline, the same account is adopted by the RG2 to access the access equipment 2 through the access link 2;
the process of sending and applying the user service information comprises the following steps:
the BAS sends the user service policy corresponding to the user to the access device 2, and the access device 2 applies the received user service policy to the corresponding access link 2.
5. The method of claim 4,
before the user roaming handover, the method further comprises: the BAS issues the user service strategy to the access equipment 1;
the revocation process of the user service policy comprises the following steps: the BAS sends a revocation message to the access device 1 to revoke the user service policy corresponding to the access link 1 in the access device 1.
6. The method of claim 2 wherein the access node is an evolved NodeBeNodeB and the traffic control node is a traffic gateway S-GW;
the access devices before and after the user roaming switching are different, and the user roaming switching is as follows: a user who has accessed access to access device 1 through eNodeB1, access link 1, moves from the eNodeB1 coverage area to the coverage area of eNodeB2, which is connected to access device 2 through access link 2, and completes a handover from eNodeB1 to eNodeB 2;
the process of sending and applying the user service information comprises the following steps:
the S-GW sends the authorization information of the user to the access device 2, and the access device 2 applies the received authorization information to the corresponding access link 2, and sends the multicast program requested by the user to the eNodeB2 through the access link 2 after copying the multicast program.
7. The method of claim 6,
before the user roaming handover, the method further comprises: a user requests a multicast program in an eNodeB1 coverage area and obtains authentication from an S-GW through an access device 1 connected with an eNodeB 1; after the S-GW successfully authenticates, the authorization information of the user is sent to the access equipment 1, and the access equipment 1 receives the authorization information of the user;
the revocation process of the user service policy comprises the following steps: the S-GW sends a revocation message to the access device 1, and if no user has requested the multicast program under eNodeB1 at this time, the access device 1 stops copying the multicast program to the access link 1; otherwise, the access device 1 cancels the authorization information of the user under the access link 1.
8. The method according to any one of claims 1 to 7, wherein:
the control protocol used for communication between the service control node and the AN is AN access point control protocol (ANCP) or a virtual broadband server (VBAS) protocol.
9. A user service control system in a backhaul network is characterized in that the system comprises an access node, access equipment and a service control node; wherein,
the service control node is used for judging the access equipment and the access link corresponding to the user after roaming switching, and sending the user service information aiming at the user to the access equipment corresponding to the switched user;
the access device corresponding to the switched access device is used for applying the user service information from the service control node to the switched access link;
the user service information comprises a user service strategy and a user service execution state including an authentication state.
10. The system of claim 9,
when the access devices before and after the user roaming switching are the same, the corresponding access device after the switching is used for carrying out the process of applying the user service information including the updating of the access link;
when the access devices before and after the user roaming switching are different, the corresponding access device after the switching is further used for carrying out the process of applying the user service information including the user service strategy in the user service information cancelled by the access device before the user roaming switching.
11. The system of claim 10, wherein the access node is an AP and the traffic control node is an access concentrator, AC;
the access equipment before and after the user roaming switching is the same, and the user roaming switching is as follows: a user who has accessed access to access device 1 from AP1 through access link 1, moves from the coverage area of AP1 to the coverage area of AP2 connected to access device 1 through access link 2, and completes a handoff from AP1 to AP 2;
in the process of sending and applying the user service information,
the access concentrator is used for sending an update message to the access equipment 1 and informing the access equipment 1 to switch a user service policy corresponding to a user from the access link 1 to the access link 2;
the access device 1 is configured to complete handover according to the update message sent by the access concentrator.
12. The system of claim 10 wherein the access node is an RG and the traffic control node is a BAS;
the access devices before and after the user roaming switching are different, and the user roaming switching is as follows: under the condition that a user who accesses the access equipment 1 through the home gateway RG1 and the access link 1 is not offline, the same account is adopted by the RG2 to access the access equipment 2 through the access link 2;
in the process of sending and applying the user service information,
the BAS is used for sending the user service strategy corresponding to the user to the access equipment 2;
the access device 2 is configured to apply the received user service policy to the corresponding access link 2.
13. The system of claim 12,
BAS are further used for: issuing a user service policy to an access device 1 before the user roaming handover;
in the revocation process of the user service policy, the BAS is configured to send a revocation message to the access device 1, and revoke the user service policy corresponding to the access link 1 stored in the access device 1.
14. The system of claim 10 wherein the access node is an eNodeB and the traffic control node is an S-GW;
the access devices before and after the user roaming switching are different, and the user roaming switching is as follows: a user who has accessed access to access device 1 through eNodeB1, access link 1, moves from the eNodeB1 coverage area to the coverage area of eNodeB2, which is connected to access device 2 through access link 2, and completes a handover from eNodeB1 to eNodeB 2;
in the process of sending and applying the user service information,
the S-GW is used for sending the authorization information of the user to the access equipment 2;
the access device 2 is configured to apply the received authorization information to the corresponding access link 2, and copy the multicast program requested by the user and send the copied multicast program to the eNodeB2 through the access link 2.
15. The system of claim 14,
the S-GW is further configured to: authenticating the user, and sending the authorization information of the user to the access equipment 1 after the authentication is successful;
in the revocation process of the user service policy, the S-GW is configured to send a revocation message to the access device 1, and control the access device 1 to stop copying the multicast program to the access link 1 when no user has requested the multicast program under the eNodeB 1; when a user requests the multicast program under eNodeB1, controlling access device 1 to withdraw the authorization information of the user under access link 1.
16. The system according to any one of claims 9 to 15, wherein:
and the control protocol used for communication between the service control node and the access equipment is an ANCP protocol or a VBAS protocol.
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| CN105122936B (en) * | 2014-03-21 | 2019-12-24 | 华为技术有限公司 | Service distribution processing method and related device |
| CN109788528B (en) * | 2017-11-15 | 2021-08-17 | 中国电信股份有限公司 | Access point and method and system for opening internet access service thereof |
| CN111510964B (en) | 2019-01-31 | 2021-09-07 | 华为技术有限公司 | Communication method and device |
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| CN1832438A (en) * | 2005-03-08 | 2006-09-13 | 华为技术有限公司 | Service switchover system of next network and its method |
| WO2008044976A1 (en) * | 2006-10-12 | 2008-04-17 | Telefonaktiebolaget Lm Ericsson (Publ) | Broadcast-based communication in a radio or wireless access network to support mobility |
| CN101365242A (en) * | 2008-08-29 | 2009-02-11 | 同济大学 | Method and system based on mobile prediction and group switching |
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| CN1832438A (en) * | 2005-03-08 | 2006-09-13 | 华为技术有限公司 | Service switchover system of next network and its method |
| WO2008044976A1 (en) * | 2006-10-12 | 2008-04-17 | Telefonaktiebolaget Lm Ericsson (Publ) | Broadcast-based communication in a radio or wireless access network to support mobility |
| CN101365242A (en) * | 2008-08-29 | 2009-02-11 | 同济大学 | Method and system based on mobile prediction and group switching |
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