WO2015165006A1

WO2015165006A1 - Handover processing method and apparatus

Info

Publication number: WO2015165006A1
Application number: PCT/CN2014/076379
Authority: WO
Inventors: 刘海; 朱文若
Original assignee: 华为技术有限公司
Priority date: 2014-04-28
Filing date: 2014-04-28
Publication date: 2015-11-05
Also published as: CN105557024A

Abstract

The present invention provides a handover processing method and apparatus. The handover processing method comprises: a UE receives a handover command sent by a base station, the handover command comprising a BSSID of a target access point; the UE opens a WLAN and accesses a target access point corresponding to the BSSID of the target access point according to the handover command; and the UE sends a reconnection message to the target access point, and performs authentication and key negotiation processing with the target access point, so as to complete the handover. A base station sends a handover command to a UE, the UE accesses a target access point and then performs authentication and key negotiation processing so as to complete network handover, so that the UE can perform communication in a WLAN, and the authentication and key negotiation processing is performed before the network handover is completed, thereby shortening the time of handover from a cellular network to the WLAN.

Description

Switching processing method and device

Technical field

The present invention relates to communication technologies, and in particular, to a handover processing method and apparatus. Background technique

With the development of wireless network technology, the convergence of different wireless network access technologies has become a development trend. At present, wireless local area network (WLAN) in wireless network technology is characterized by high mobility, strong confidentiality, good anti-interference, easy installation and maintenance, and low construction cost. Combining it with a mature and widely used wireless cellular network, that is, the convergence of WLAN and wireless cellular networks has become the mainstream technology.

In addition, due to the limited network bandwidth resources, to meet the requirements of various services, it is necessary to switch between WLAN and wireless cellular networks. Switching between existing WLANs and wireless cellular networks includes: switching from a wireless cellular network to a WLAN, and switching the WLAN to a wireless cellular network. The method for the wireless cellular network to switch to the WLAN is as follows: The user equipment (User Equipment, UE for short) disconnects from the wireless cellular network and establishes a connection with the WLAN. After the UE establishes a connection with the WLAN, the UE performs authentication authentication with the authentication, authorization, and accounting server (Authentication, Authorization Accounting server, Jane AAA server or 3A server), and performs temporary key with the WLAN network. Negotiation, after the key negotiation is completed, the UE can transmit data on the WLAN. The method for the WLAN to switch to the wireless cellular network is as follows: The UE first disconnects from the WLAN and then establishes a connection with the wireless cellular network. After the UE establishes a connection with the wireless cellular network, the UE performs authentication and key agreement with the 3A server, and after the negotiation is completed, the UE can perform data transmission on the wireless cellular network.

However, since the switching between the WLAN and the wireless cellular network can only perform the authentication and key negotiation after switching to the target network, the data is transmitted on the target network, thereby causing a long switching time. Longer problems, especially for real-time services such as Voice over IP (VOIP) or video, may lead to business interruption problems.

Summary of the invention The embodiment of the invention provides a method and a device for processing a handover, which effectively solves the problem of service interruption and long handover time in the network handover process in the prior art, so that the UE does not interrupt the service during the network handover process, and shortens the network. Switching time of switching.

A first aspect of the embodiments of the present invention provides a method for processing a handover, including: receiving, by a user equipment, a handover command sent by a base station, where the handover command includes: a name BSSID of the target access point;

The UE, according to the handover command, opens a wireless local area network WLAN to access a target access point corresponding to the BSSID of the target access point;

The UE sends a reconnect message to the target access point, and performs authentication and key agreement processing with the target access point to complete the handover.

A second aspect of the embodiments of the present invention provides a method for processing a handover, including:

The first gateway receives the handover message, where the handover message includes: a name BSSID of the target access point; the first gateway reserves resources on the target access point corresponding to the BSSID of the target access point, and sends the resource to the base station And switching the response message, so that the base station sends the handover command to the user equipment UE according to the handover response message, so that the UE opens the wireless local area network WLAN to access the handover command according to the handover command. Determining a target access point corresponding to the BSSID of the target access point, and sending a reconnect message to the target access point, and performing authentication and key agreement processing with the target access point.

With reference to the second aspect, in a first possible implementation manner of the second aspect, the method further includes: the first gateway receiving the target access point after performing authentication authentication and key negotiation processing with the UE And sending an indication message, and performing bearer modification processing according to the indication message to complete the handover.

A third aspect of the embodiments of the present invention provides a method for processing a handover, including:

The mobility management entity MME receives the handover message sent by the base station, where the handover message includes: a name BSSID of the target access point;

Obtaining, by the MME, the first gateway according to the BSSID of the target access point, and sending the handover message to the first gateway, where the first gateway reserves resources on the target access point. ;

Receiving, by the MME, a handover response message returned by the first gateway, and sending a non-access stratum NAS message to the user equipment UE according to the handover response message, to trigger the UE and the first The gateway performs authentication authentication and key negotiation processing;

After receiving the authentication protocol success message sent by the first gateway, the MME sends a handover response message to the base station according to the authentication protocol success message, so that the base station sends the handover response message according to the handover response message. The UE sends a handover command carrying the BSSID of the target access point, so that the UE opens the WLAN access to the target access point, and sends a re-establishment message to complete the handover.

A fourth aspect of the embodiments of the present invention provides a method for processing a handover, including:

The first gateway receives the handover message sent by the mobility management entity MME, where the handover message includes: a name BSSID of the target access point;

The first gateway reserves a resource on the target access point corresponding to the BSSID of the target access point, and sends a handover response message to the MME, so that the MME sends the handover response message to the user equipment according to the handover response message. The UE sends a NAS message to trigger the UE to perform authentication and key agreement processing with the first gateway.

With reference to the fourth aspect, in a first possible implementation manner of the fourth aspect, the method further includes: the first gateway receiving the target access point after performing authentication authentication and key negotiation processing with the UE And sending an indication message, and performing bearer modification processing according to the indication message to complete the handover.

A fifth aspect of the embodiments of the present invention provides a method for processing a handover, including:

The base station sends a handover message to the first gateway, where the handover message includes a name BSSID of the target access point, for the first gateway to use the target access point corresponding to the BSSID of the target access point according to the handover message. Reserve resources on;

The base station receives the handover response message sent by the first gateway, and sends a radio resource control protocol RRC message to the user equipment UE according to the handover response message, to trigger the UE to authenticate with the target access point. Authentication and key agreement processing;

After receiving the authentication protocol success message sent by the first gateway, the base station sends a handover command carrying the BSSID of the target access point to the UE according to the authentication protocol success message, for the UE The wireless local area network WLAN is turned on to access the target access point, and a reestablishment message is sent to complete the handover.

A sixth aspect of the embodiments of the present invention provides a method for processing a handover, including:

The first gateway receives the handover message sent by the base station, where the handover message includes: Name BSSID;

The first gateway reserves a resource on the target access point corresponding to the BSSID of the target access point, and sends a handover response message to the base station, so that the base station sends the handover response message to the user equipment according to the handover response message. The UE sends a radio resource control protocol (RRC) message to trigger the UE to perform authentication and key agreement processing with the first gateway.

With reference to the sixth aspect, in a first possible implementation manner of the sixth aspect, the method further includes: the first gateway receiving the target access point after performing authentication authentication and key negotiation processing with the UE And sending an indication message, and performing bearer modification processing according to the indication message to complete the handover.

A seventh aspect of the embodiments of the present invention provides a method for processing a handover, including:

The user equipment UE sends a handover message to the mobility management entity MME, where the handover message includes: a name BSSID of the target access point;

Receiving, by the UE, a handover response message returned by the MME, and performing authentication authentication and key agreement processing with the target access point according to the handover response message;

The UE opens a wireless local area network WLAN access target access point, and sends a reconnection message to the target access point to complete the handover.

An eighth aspect of the embodiments of the present invention provides a method for processing a handover, including:

The mobility management entity MME receives the handover message sent by the user equipment UE, where the handover message includes: a name BSSID of the target access point;

Receiving, by the MME, the handover response message returned by the first gateway, and sending the handover response message to the UE, so that the UE and the first gateway perform authentication authentication and key negotiation processing, And the wireless local area network WLAN access target access point is opened, and a reconnection message is sent to the target access point to complete the handover.

A ninth aspect of the embodiments of the present invention provides a method for processing a handover, including:

The first gateway reserves a resource on a target access point corresponding to the BSSID of the target access point. And sending a handover response message to the MME, so that the MME forwards the handover response message to the user equipment UE, where the UE performs authentication authentication and key agreement processing with the target access point. And opening the WLAN access target access point, and sending a reconnection message to the target access point to complete the handover.

A tenth aspect of the embodiments of the present invention provides a method for processing a handover, including:

The user equipment sends a measurement report to the first gateway, so that the first gateway acquires the target base station that the UE finally accesses according to the measurement report;

Receiving, by the UE, a handover command sent by the first gateway, and performing LTE access to the target base station according to the handover command, and performing authentication authentication and key negotiation processing with the target base station; The mobility management entity MME sends a negotiation completion message to complete the handover. An eleventh embodiment of the present invention provides a method for processing a handover, including:

Receiving, by the MME, a handover message sent by the first gateway;

Sending, by the MME, a reserved resource message to the target base station, so that the target base station performs reserved resources, and returns a reserved identifier;

The MME receives the reservation identifier returned by the target base station, and sends a handover response message to the first gateway, so that the first gateway sends a handover command to the UE, so that the UE opens the LTE access. Go to the target base station, and perform authentication and key agreement processing with the target base station; the MME receives the handover complete message sent by the UE, and sends a bearer modification message to the packet switching gateway S/PGW.

In a first possible implementation manner of the first aspect, the method further includes: sending, by the MME, a context setup message carrying the reservation identifier to the target base station, to enable the target base station Obtain reserved resources;

The MME sends an attach accept message to the UE to complete the network handover.

A twelfth aspect of the embodiments of the present invention provides a method for processing a handover, including:

The first gateway receives the measurement report sent by the user equipment UE, and acquires the target base station that the UE finally accesses according to the measurement report;

Sending, by the first gateway, a handover message to the mobility management entity MME;

The first gateway receives the handover response message sent by the MME, and sends a handover command to the UE, so that the UE opens the LTE access to the target base station to complete the network handover.

A thirteenth aspect of the embodiments of the present invention provides a switching processing apparatus, including: a transceiver module, And a method for receiving a handover command sent by the base station, where the handover command includes: a name of the target access point

BSSID;

An access module, configured to: according to the switching command, open a wireless local area network (WLAN) to access a target access point corresponding to a BSSID of the target access point;

The transceiver module is further configured to send a reconnection message to the target access point, and perform authentication authentication and key negotiation processing with the target access point to implement handover completion.

A fourteenth aspect of the embodiments of the present invention provides a switching processing apparatus, including: a transceiver module, configured to receive a handover message, where the handover message includes: a name of a target access point BSSID;

a processing module, configured to reserve a resource on a target access point corresponding to the BSSID of the target access point, and send a handover response message to the base station, so that the base station sends the handover command according to the handover response message Providing to the user equipment UE, for the UE to open the WLAN to access the target access point corresponding to the BSSID of the target access point in the handover command according to the handover command, and access the target access point The point sends a reconnection message, and performs authentication authentication and key agreement processing with the target access point.

In conjunction with the fourteenth aspect, in a first possible implementation manner of the fourteenth aspect, the method further includes: the transceiver module is further configured to receive, by the target access point, authentication and encryption with the UE The indication message sent after the key negotiation process, and performing bearer modification processing according to the indication message to complete the handover.

A fifteenth aspect of the embodiments of the present invention provides a switching processing apparatus, including: a transceiver module, configured to receive a handover message sent by a base station, where the handover message includes: a name BSSID of a target access point;

An acquiring module, configured to acquire, according to a BSSID of the target access point, a first gateway, and send, by using the transceiver module, the handover message to the first gateway, where the first gateway is in the target Reserve resources on the access point;

The transceiver module is further configured to receive a handover response message returned by the first gateway, and send a non-access stratum NAS message to the user equipment UE according to the handover response message, to trigger the UE to perform with the first gateway. Authentication authentication and key agreement processing;

The transceiver module is further configured to: after receiving the authentication protocol success message sent by the first gateway, send a handover response message to the base station according to the authentication protocol success message, so that the base station according to the handover response message Transmitting, to the UE, a BSSID carrying the target access point And changing a command, for the UE to open the WLAN access to the target access point, and sending a reconstruction message to complete the handover.

A sixteenth aspect of the embodiments of the present invention provides a switching processing apparatus, including: a transceiver module, configured to receive a handover message sent by a mobility management entity MME, where the handover message includes: a name of a target access point BSSID;

a processing module, configured to reserve a resource on a target access point corresponding to the BSSID of the target access point, and send a handover response message to the MME by using the transceiver module, so that the MME responds according to the handover The message is sent to the user equipment UE to trigger the UE to perform authentication authentication and key agreement processing with the first gateway.

In conjunction with the sixteenth aspect, in a first possible implementation manner of the sixteenth aspect, the method further includes: the transceiver module is further configured to receive, by the target access point, authentication and encryption with the UE The indication message sent after the key negotiation process, and performing bearer modification processing according to the indication message to complete the handover.

A seventeenth aspect of the embodiments of the present invention provides a switching processing apparatus, including: a transceiver module, configured to send a handover message, where the handover message includes a name BSSID of a target access point, where the first gateway is configured according to the Switching a message, reserving resources on a target access point corresponding to the BSSID of the target access point;

The transceiver module is further configured to receive a handover response message sent by the first gateway, and send a radio resource control protocol RRC message to the user equipment UE according to the handover response message, to trigger the UE and the target access Point for authentication and key negotiation processing;

The transceiver module is further configured to: after receiving the authentication protocol success message sent by the first gateway, send a handover command carrying the BSSID of the target access point to the UE according to the authentication protocol success message, to The UE is enabled to open a wireless local area network (WLAN) to access the target access point, and send a reconstruction message to complete the handover.

An eighteenth aspect of the embodiments of the present invention provides a switching processing apparatus, including: a transceiver module, configured to receive a handover message sent by a base station, where the handover message includes: a name BSSID of a target access point;

a processing module, configured to reserve a resource on a target access point corresponding to a BSSID of the target access point, and send a handover response message to the base station by using the transceiver module, so that the base station responds according to the handover a message, sending a radio resource control protocol RRC message to the user equipment UE, to The UE is triggered to perform authentication authentication and key negotiation processing with the first gateway.

In conjunction with the eighteenth aspect, in a first possible implementation of the eighteenth aspect, the method further includes: the transceiver module is further configured to receive, by the target access point, authentication and encryption with the UE The indication message sent after the key negotiation process, and performing bearer modification processing according to the indication message to complete the handover.

A nineteenth aspect of the embodiments of the present invention provides a switching processing apparatus, including: a transceiver module, configured to send a handover message to a mobility management entity MME, where the handover message includes: a name BSSID of the target access point;

The transceiver module is further configured to receive a handover response message returned by the MME;

a processing module, configured to perform authentication and key agreement processing with the target access point according to the handover response message;

The access module is configured to open a wireless local area network (WLAN) access target access point, and send a reconnection message to the target access point by using the transceiver module to complete the handover.

A twentieth aspect of the embodiments of the present invention provides a switching processing apparatus, including: a transceiver module, configured to receive a handover message sent by a user equipment UE, where the handover message includes: a name BSSID of a target access point;

The transceiver module is further configured to receive a handover response message returned by the first gateway, and send the handover response message to the UE, so that the UE and the first gateway perform authentication and authentication. Key negotiation processing, and opening a wireless local area network WLAN access target access point, and sending a reconnection message to the target access point to complete the handover.

A twenty-first aspect of the embodiments of the present invention provides a switching processing apparatus, including: a transceiver module, configured to receive a handover message sent by a mobility management entity MME, where the handover message includes: a name of a target access point BSSID;

a processing module, configured to reserve a resource on a target access point corresponding to the BSSID of the target access point, and send a handover response message to the MME, so that the MME forwards the handover response message to the user equipment a UE, configured to perform authentication authentication and key agreement processing on the UE and the target access point, and open a WLAN access target access point, and send a re-send to the target access point. Connect the message to complete the switch.

A twenty-second aspect of the embodiments of the present invention provides a processing device for switching, including: a transceiver module, configured to send a measurement report to a first gateway, so that the first gateway acquires the UE according to the measurement report. Target base station;

The transceiver module is further configured to receive a handover command sent by the first gateway;

An access module, configured to: open an LTE access to the target base station according to the handover command, and perform authentication and key agreement processing with the target base station by using the transceiver module;

The transceiver module is further configured to send, by the UE, a negotiation completion message to the mobility management entity MME, to implement handover completion.

A twenty-third aspect of the embodiments of the present invention provides a switching processing apparatus, including: a transceiver module, configured to receive a handover message sent by a first gateway;

The transceiver module is further configured to send a reserved resource message to the target base station, so that the target base station performs reserved resources, and returns a reserved identifier.

The transceiver module is further configured to receive the reservation identifier returned by the target base station, and send a handover response message to the first gateway, so that the first gateway sends a handover command to the UE, for the UE Turning on LTE access to the target base station, and performing authentication authentication and key agreement processing with the target base station;

The transceiver module is further configured to receive a handover complete message sent by the UE, and send a bearer modification message to the packet switching gateway S/PGW.

In conjunction with the twenty-third aspect, in a first possible implementation manner of the twenty-third aspect, the transceiver module is further configured to:

Sending, to the target base station, a context setup message carrying the reservation identifier, so that the target base station acquires the reserved resource;

An attach accept message is sent to the UE to complete the network handover.

A twenty-fourth aspect of the embodiments of the present invention provides a switching processing apparatus, including: a transceiver module, configured to receive a measurement report sent by a user equipment UE, and acquire, according to the measurement report, a target base station that is finally accessed by the UE;

The transceiver module is further configured to send a handover message to the mobility management entity MME.

The transceiver module is further configured to receive a handover response message sent by the MME, and send a handover command to the UE, so that the UE opens the LTE access to the target base station to complete the network. Network switching.

The method and device for processing the handover provided by the embodiment of the present invention, in the process of network handover, by performing the authentication authentication and the key agreement processing in advance before the network handover is completed, compared with the prior art, the access is new. After the network, the authentication and the key negotiation are performed, and the resources required by the user equipment are reserved at the access point, which effectively solves the problem of service interruption and long switching time in the network switching process in the prior art. The UE does not interrupt the service during the network handover process, which shortens the switching time of the network handover. DRAWINGS

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, a brief description of the drawings used in the embodiments or the prior art description will be briefly described below. Obviously, the drawings in the following description It is a certain embodiment of the present invention, and other drawings can be obtained from those skilled in the art without any inventive labor.

1 is a schematic diagram of a network architecture of a processing method based on handover of the present invention;

2 is a flowchart of Embodiment 1 of a processing method for handover according to the present invention;

3 is a flowchart of Embodiment 2 of a processing method for handover according to the present invention;

4 is a signaling flowchart of Embodiment 3 of a processing method for handover according to the present invention;

FIG. 5 is a signaling flowchart of Embodiment 4 of a processing method for handover according to the present invention;

6 is a flowchart of Embodiment 5 of a processing method for handover according to the present invention;

7 is a flowchart of Embodiment 6 of a processing method for handover according to the present invention;

8 is a signaling flowchart of Embodiment 7 of a processing method for handover according to the present invention;

9 is a flowchart of Embodiment 8 of a processing method for handover according to the present invention;

FIG. 10 is a flowchart of Embodiment 9 of a processing method for handover according to the present invention; FIG.

11 is a signaling flowchart of Embodiment 10 of a processing method for handover according to the present invention;

FIG. 12 is a flowchart of Embodiment 11 of a processing method for handover according to the present invention; FIG.

13 is a flowchart of Embodiment 12 of a processing method for handover according to the present invention.

14 is a flowchart of Embodiment 13 of a processing method for handover according to the present invention;

15 is a signaling flowchart of Embodiment 14 of a processing method for handover according to the present invention;

16 is a flowchart of Embodiment 15 of a processing method for handover according to the present invention;

17 is a flowchart of Embodiment 16 of a processing method for handover according to the present invention; FIG. 18 is a flowchart of Embodiment 17 of a processing method for handover according to the present invention; FIG.

FIG. 19 is a signaling flowchart of Embodiment 18 of a processing method for handover according to the present invention; FIG.

20 is a signaling flowchart of Embodiment 19 of a processing method for handover according to the present invention;

FIG. 21 is a schematic structural diagram of Embodiment 1 of a processing apparatus for switching according to the present invention; FIG.

22 is a schematic structural diagram of Embodiment 2 of a processing apparatus for switching according to the present invention;

23 is a schematic structural diagram of Embodiment 3 of a processing apparatus for switching according to the present invention;

24 is a schematic structural diagram of Embodiment 4 of a processing apparatus for switching according to the present invention;

25 is a schematic structural diagram of Embodiment 5 of a processing apparatus for switching according to the present invention;

26 is a schematic structural diagram of Embodiment 6 of a processing apparatus for switching according to the present invention;

27 is a schematic structural diagram of Embodiment 7 of a processing apparatus for switching according to the present invention;

28 is a schematic structural diagram of Embodiment 1 of a processing apparatus for switching according to the present invention;

29 is a schematic structural diagram of Embodiment 9 of a processing apparatus for switching according to the present invention;

FIG. 30 is a schematic structural diagram of Embodiment 10 of a processing apparatus for switching according to the present invention; FIG.

Figure 31 is a schematic structural diagram of Embodiment 11 of the processing apparatus for switching according to the present invention;

32 is a schematic structural diagram of Embodiment 12 of a processing apparatus for switching according to the present invention;

33 is a schematic structural diagram of an embodiment of a user equipment according to the present invention;

FIG. 34 is a schematic structural diagram of a first gateway according to an embodiment of the present invention; FIG.

35 is a schematic structural diagram of an MME according to an embodiment of the present invention;

36 is a schematic structural diagram of still another embodiment of a first gateway according to the present invention;

37 is a schematic structural diagram of an embodiment of a base station according to the present invention;

38 is a schematic structural diagram of still another embodiment of a first gateway according to the present invention;

39 is a schematic structural diagram of still another embodiment of a user equipment according to the present invention;

40 is a schematic structural diagram of still another embodiment of a MME according to the present invention;

41 is a schematic structural diagram of another embodiment of a first gateway according to the present invention;

42 is a schematic structural diagram of another embodiment of a user equipment according to the present invention;

43 is a schematic structural diagram of another embodiment of an MME according to the present invention;

Figure 44 is a schematic structural view of a fourth embodiment of the first gateway of the present invention. detailed description

1 is a schematic diagram of a network architecture of a processing method based on handover of the present invention, as shown in FIG. The network architecture includes: User Equipment (UE), an Access Point (AP) connected to the UE, and a Trusted WLAN Access Gateway (TWAG) connected to the access point. ), and a signaling gateway (referred to as SGW) or a PDN Gate Way (PGW) connected to the TWAG. The TWAG is the first hop router of the UE, and the IP address of the UE is sent by the PGW to the TWAG, and the UE obtains the IP address from the TWAG through an IP address allocation protocol such as a Dynamic Host Configuration Protocol (DHCP). . There is control plane signaling between the UE and the TWAG, which is currently used to activate the Packet Data Protocol (PDP) connection to obtain an IP address.

In addition, the network architecture also includes: Policy and charging rules functional unit (Policy and

Charging Rules Function (referred to as PCRF), HSS server, trusted WLAN network,

3A server, 3GPP network. The processing method embodiments of the handover provided by the present invention are all based on the architecture shown in FIG.

2 is a flowchart of a first embodiment of a method for processing handover according to the present invention. Based on the network architecture shown in FIG. 1 , in this embodiment, a user equipment is switched from a cellular network to a WLAN as an example, and the technology in this embodiment is introduced in detail. Solution, as shown in Figure 2, the method includes:

S201: The UE receives a handover command sent by the base station, where the handover command includes: a BSSID of the target access point.

In this embodiment, the base station is a serving base station of the cellular network currently accessed by the UE. When the base station detects that the currently trusted WLAN network can access, the base station sends a handover command to the UE, so that the UE completes the handover and access. The WLAN.

S202: The UE opens a WLAN access target access point corresponding to the BSSID of the target access point according to the handover command.

In this embodiment, the target access point is an access point corresponding to the BSSID carried in the handover command, that is, an access point of the WLAN to be accessed after the UE is switched.

S203: The UE sends a reconnect message to the target access point, and performs authentication and key agreement processing with the target access point to complete the handover.

In this embodiment, after the UE accesses the target access point, the authentication and negotiation processing with the target access point is triggered. After the authentication and key negotiation process is completed, the handover initiation process may be initiated by the UE to complete the network handover, or the target gateway may perform bearer modification, so that the PGW will use the UE. The bearer switches to the first gateway, and the UE can communicate on the switched WLAN network.

In the processing method of the handover provided by the embodiment, the base station sends a handover command to the UE, and the UE accesses the target access point to perform authentication authentication and key negotiation processing, and finally the UE or the target gateway triggers the PGW to complete the network handover, so that the UE The communication can be performed on the WLAN, and the authentication authentication and the key agreement processing are performed in advance before the network handover is completed. Compared with the authentication and key negotiation performed after accessing the new network in the prior art, the embodiment is The method provided shortens the switching time of the cellular network to the WLAN.

FIG. 3 is a flowchart of the second embodiment of the processing method of the handover according to the network architecture of the present invention. In this embodiment, the user equipment is switched from the cellular network to the WLAN as an example, and the technology in this embodiment is introduced in detail. Solution, as shown in Figure 3, the method includes:

S301: The first gateway receives a handover message, where the handover message includes a BSSID of the target access point. In this embodiment, the first gateway is a target gateway to be accessed after the UE is switched, and the first gateway may be configured by the MME to query the correspondence between the target AP and the target gateway stored in the background, or may be accessed by the MME according to the MME. The mapping between the AP and the neighboring gateway is configured and obtained.

S302: The first gateway reserves a resource on the target access point corresponding to the BSSID of the target access point, and sends a handover response message to the base station, so that the base station sends the handover command according to the handover response message. And the UE is configured to enable the UE to access a target access point corresponding to the BSSID of the target access point in the handover command according to the handover command, and send a reconnection to the target access point. a message, and performing authentication authentication and key agreement processing with the target access point.

In this embodiment, the reserved resource on the target access point includes the UE that needs to be reserved according to the UE's Voice over IP (VOIP) and the UE's MAC address reserved by the target access point. The Internet Protocol voice resource or video resource is reserved for the UE to perform voice or video data transmission.

Specifically, the first gateway can be controlled by a Wireless Access Point Control Specification (Control And Provisioning of Wireless Access Points Protocol Specification, Jane

CAPWAP) Notifies the access point to reserve resources.

Optionally, the first gateway receives an indication message that is sent by the target access point after performing authentication authentication and key agreement processing with the UE, and performs bearer modification processing according to the indication message to complete the handover. .

In this embodiment, the first gateway performing the bearer modification may send the modified response to the PGW. So that the PGW can switch the UE bearer to the first gateway, and the UE can communicate on the switched WLAN network.

In the processing method of the handover provided by the embodiment, the first gateway receives the handover command, and reserves resources on the target access point, and the base station sends a handover command to the UE, so that the UE accesses the target access point, and performs authentication. The authentication and key negotiation process, the UE or the target gateway triggers the PGW to complete the network handover, so that the UE can communicate on the WLAN, compared with the authentication and key negotiation performed after accessing the new network in the prior art. The data communication cannot be performed. The method provided in this embodiment reserves resources on the target access point, so that the service is not interrupted during the network handover process, and the authentication and key negotiation processing is performed before the network handover is completed. Shorten the switching time from cellular to WLAN.

4 is a signaling flowchart of a method for processing a handover according to a third embodiment of the present invention. Based on the network architecture shown in FIG. 1 , in this embodiment, a user equipment is switched from a cellular network to a WLAN as an example. The technical solution, as shown in Figure 4, the specific process of the method is:

S401: The base station sends a handover message to the MME, where the handover message includes a BSSID of the target access point.

S402: The MME selects the first gateway according to the BSSID, and sends a handover message to the first gateway. In this embodiment, the handover message further includes a VOIP indication and a MAC address of the UE. S403: The first gateway reserves resources on the target access point corresponding to the BSSID.

In this embodiment, the reserved resource on the target access point includes the Internet Protocol voice resource or video resource that the target access point needs to reserve according to the VOIP indication of the UE and the MAC address of the UE. The UE performs voice or video data transmission.

S404: The first gateway sends a handover response message to the base station by using the MME.

S405: The base station sends a handover command to the UE, where the handover command carries the BSSID of the target access point. S406: The UE turns on the WLAN to access the target access point.

S407: The UE sends a reconnect message to the target access point, and performs authentication and key agreement processing with the target access point.

S408: The UE initiates a handover attach procedure or the first gateway performs bearer modification processing.

S409: The PGW switches the UE bearer to the first gateway to complete network switching.

In the processing method of the handover provided by the embodiment, the base station sends a handover message to the MME, selects the first gateway according to the handover message, and sends a handover command to the first gateway, where the first gateway is configured according to the The handover command reserves resources on the target access point, and returns a handover response message to the base station by using the MME, and the base station sends a handover command to the UE, so that the UE accesses the target access point, and performs authentication and key agreement processing. The UE or the target gateway triggers the PGW to complete the network handover, so that the UE can communicate on the WLAN, and the data communication cannot be performed compared to the authentication and key negotiation performed after accessing the new network in the prior art. The method provided by the embodiment reserves resources on the target access point, so that the service is not interrupted during the network handover process, and the authentication and key agreement processing are performed before the network handover is completed, and the cellular network to the WLAN is shortened. Switch time.

FIG. 5 is a signaling flowchart of a method for processing a handover according to a fourth embodiment of the present invention. Based on the network architecture shown in FIG. 1 , in this embodiment, a user equipment is switched from a cellular network to a WLAN as an example. The technical solution, as shown in Figure 5, the specific process of the method is:

S501: The base station selects the first gateway according to the BSSID of the target access point, and sends a handover command to the first gateway.

In this embodiment, the handover command includes a BSSID of the target access point. Optionally, the VOIP indication and the MAC address of the UE may also be included.

S502: The first gateway reserves resources on the target access point corresponding to the BSSID.

S503: The first gateway sends a handover response message to the base station.

S504: The base station sends a handover command to the UE, where the handover command carries the BSSID of the target access point.

S505: The UE turns on the WLAN to access the target access point.

S506: The UE sends a reconnect message to the target access point, and performs authentication and key agreement processing with the target access point.

S507: The UE initiates a handover attach procedure or the first gateway performs bearer modification processing.

S508: The PGW switches the UE bearer to the first gateway to complete network switching.

In the processing method of the handover provided by the embodiment, the base station selects the first gateway, and sends a handover command to the first gateway, where the first gateway reserves resources on the target access point according to the handover command, and returns a handover response message to the base station. The base station sends a handover command to the UE, so that the UE accesses the target access point, and performs authentication authentication and key negotiation processing. Finally, the UE or the target gateway triggers the PGW to complete the network handover, so that the UE can communicate on the WLAN. Compared to the prior art after accessing a new network The authentication and key negotiation performed cannot perform data communication. The method provided in this embodiment reserves resources on the target access point, so that the UE does not interrupt the service during the network handover process, and the authentication and key agreement are performed. The processing is performed before the network switching is completed in advance, and the switching time of the cellular network to the WLAN is shortened.

FIG. 6 is a flowchart of the fifth embodiment of the processing method of the handover according to the network architecture shown in FIG. 1. In this embodiment, the user equipment is switched from the cellular network to the WLAN as an example, and the technology in this embodiment is introduced in detail. Solution, as shown in Figure 6, the method includes:

S601: The MME receives a handover message sent by the base station, where the handover message includes: a BSSID of the target access point.

S602: The MME acquires the first gateway according to the BSSID of the target access point, and sends the handover message to the first gateway, where the first gateway reserves resources on the target access point. .

In this embodiment, the MME obtains the first gateway by querying the correspondence between the target AP and the target gateway stored in the background, and may also configure the first gateway according to the correspondence between the access point AP and the neighboring gateway.

S603: The MME receives the handover response message returned by the first gateway, and sends a Network Attached Storage (NAS) message to the user equipment UE according to the handover response message, to trigger the UE and the first The gateway performs authentication and key agreement processing.

In this embodiment, the NAS message is transmitted to the UE through the base station and the MME.

S604: After receiving the authentication protocol success message sent by the first gateway, the MME sends a handover response message to the base station according to the authentication protocol success message, so that the base station sends the handover response message according to the handover response message. The UE sends a handover command carrying the BSSID of the target access point, so that the UE opens the WLAN access to the target access point, and sends a re-establishment message to complete the handover.

In the processing method of the handover provided by the embodiment, the MME acquires the first gateway and sends a handover message to the first gateway by receiving the handover message sent by the base station, so that the first gateway reserves the target access point according to the handover command. And returning a handover response message to the MME, the MME sends a NAS message to the UE, and triggers the UE to perform authentication authentication and key negotiation processing with the first gateway. After receiving the authentication protocol success message sent by the first gateway, the MME sends a message to the UE. The base station sends a handover response message, so that the base station sends a handover command to the UE, and the UE opens the WLAN access target access point, and finally the UE or the destination The standard gateway triggers the PGW to complete the network handover, so that the UE can communicate on the WLAN, and the data communication cannot be performed compared to the authentication and key negotiation performed after accessing the new network in the prior art. The method reserves resources on the target access point, so that the UE does not interrupt the service during the network handover process, and performs authentication authentication and key agreement processing in advance before the UE accesses the target access point, and shortens the cellular network to the WLAN. Switch time.

FIG. 7 is a flowchart of Embodiment 6 of the processing method of the handover according to the present invention. Based on the network architecture shown in FIG. 1 , in this embodiment, the user equipment is switched from the cellular network to the WLAN as an example, and the technology in this embodiment is introduced in detail. Solution, as shown in Figure 7, the method includes:

S701: The first gateway receives a handover message sent by the MME, where the handover message includes a BSSID of the target access point.

In this embodiment, the handover message further includes a VOIP of the UE and a MAC address of the UE.

S702: The first gateway reserves a resource on the target access point corresponding to the BSSID of the target access point, and sends a handover response message to the MME, so that the MME sends the NAS message according to the handover response message. And triggering the UE to perform authentication authentication and key agreement processing with the first gateway.

In this embodiment, the reserved resource of the first gateway on the target access point includes the Internet Protocol voice resource or video resource that the target access point needs to reserve according to the VOIP of the UE and the MAC address of the UE. And for the UE to perform voice or video data transmission. Specifically, the first gateway may notify the access point to reserve resources through the CAPWAP.

The processing method of the handover provided in this embodiment, by receiving the handover message sent by the MME, the first gateway reserves resources on the target access point according to the handover message, and returns a handover response message to the MME, so that the MME sends the NAS to the UE. The message triggers the UE to perform authentication and key negotiation processing with the first gateway. After receiving the authentication protocol success message sent by the target access point, the first gateway triggers the PGW to complete the network handover, so that the UE can communicate on the WLAN. Compared with the authentication and key negotiation performed after accessing a new network in the prior art, data communication cannot be performed. The method provided in this embodiment reserves resources on the target access point, so that the UE switches in the network. During the process, the service will not be interrupted, and the authentication and key agreement processing will be performed before the UE accesses the target access point. Short cell to WLAN switching time.

FIG. 8 is a signaling flowchart of a method for processing a handover according to a seventh embodiment of the present invention. Based on the network architecture shown in FIG. 1 , in this embodiment, a user equipment is switched from a cellular network to a WLAN as an example. The technical solution, as shown in Figure 8, the specific process of the method is:

S801: The base station sends a handover message to the MME, where the handover message includes the target access point.

BSSID.

S802: The MME selects the first gateway according to the BSSID, and sends a handover message to the first gateway. In this embodiment, the handover message further includes a VOIP indication and a MAC address of the UE. S803: The first gateway reserves resources on the target access point corresponding to the BSSID.

In this embodiment, the reserved resources on the target access point include the target access point according to the UE.

The VOIP indication and the UE reserved for the MAC address of the UE need to reserve the Internet Protocol voice resource or video resource for the UE to perform voice or video data transmission.

S804: The first gateway sends a handover response message to the MME.

S805: The MME sends a NAS message to the UE according to the handover response message, and triggers the UE to perform authentication authentication and key agreement processing with the first gateway.

S806: The first gateway sends an authentication protocol success message to the MME, and the MME determines that the authentication process is completed.

S807: The MME sends a handover response message to the base station.

S808: The base station sends a handover command to the UE, where the handover command includes a BSSID of the target access point. S809: The UE opens the WLAN access to the target access point, and sends a reconnection message to the target access point.

S810: The UE initiates a handover attach procedure or the first gateway performs bearer modification processing.

S811: The PGW switches the UE bearer to the first gateway to complete network switching.

The processing method of the handover provided by the embodiment, the MME forwards the handover message to the first gateway by using the handover message sent by the base station to the MME, and the first gateway reserves resources on the target access point according to the handover message, and sends the resource to the MME. Returning a handover response message, so that the MME sends a NAS message to the UE, and triggers the UE to perform authentication authentication and key agreement processing with the first gateway, after the first gateway receives the authentication protocol success message sent by the target access point, so that The PGW completes the network handover, and the data communication cannot be performed compared to the authentication and key negotiation performed after accessing the new network in the prior art. The method provided in this embodiment reserves resources on the target access point, so that UE in the process of network switching It is not interrupted, and the authentication and key agreement processing is performed in advance before the UE accesses the target access point, and the switching time of the cellular network to the WLAN is shortened.

FIG. 9 is a flowchart of Embodiment 8 of the processing method of the handover according to the embodiment of the present invention. Based on the network architecture shown in FIG. 1 , in this embodiment, the user equipment is switched from the cellular network to the WLAN as an example, and the technology in this embodiment is introduced in detail. Solution, as shown in Figure 9, the method includes:

S901: The base station sends a handover message to the first gateway, where the handover message includes a BSSID of the target access point, where the first gateway accesses the target corresponding to the BSSID of the target access point according to the handover message. Reserve resources on the point.

In this embodiment, the handover message further includes a VOIP indication and a MAC address of the UE. S902: The base station receives the handover response message sent by the first gateway, and sends a Radio Resource Control (RRC) message to the user equipment UE according to the handover response message, to trigger the UE and the The target access point performs authentication and key agreement processing.

In this embodiment, the RRC message includes a BSSID of the target access point, so that the UE completes authentication and key agreement at the target access point.

S903: After receiving the authentication protocol success message sent by the first gateway, the base station sends a handover command carrying the BSSID of the target access point to the UE according to the authentication protocol success message, for the UE. The WLAN is opened to access the target access point, and a re-establishment message is sent to complete the handover.

The processing method of the handover provided by the embodiment, the handover message sent by the base station to the first gateway, so that the first gateway reserves resources on the target access point according to the handover message, and the base station receives the handover response message returned by the first gateway. Sending an RRC message to the UE, triggering the UE to perform authentication and key agreement processing with the first gateway, and after receiving the authentication protocol success message sent by the target access point returned by the first gateway, the base station sends a handover command to the UE, For the UE to open the WLAN access to the target access point, the UE can communicate on the WLAN, and the data communication cannot be performed compared to the authentication and key negotiation performed after accessing the new network in the prior art. The method provided by the embodiment reserves resources on the target access point, so that the service is not interrupted during the network handover process, and the authentication and key agreement processing are performed in advance before the UE accesses the target access point, and the cell is shortened. Network to WLAN switching time.

FIG. 10 is a flowchart of Embodiment 9 of a processing method for handover according to the present invention, based on the network shown in FIG. In this embodiment, the technical solution of the embodiment is described in detail in the example that the user equipment is switched from the cellular network to the WLAN. As shown in FIG. 10, the method includes:

S1001: The first gateway receives a handover message sent by the base station, where the handover message includes a BSSID of the target access point.

In this embodiment, the handover message further includes a VOIP indication and a MAC address of the UE.

S1002: The first gateway reserves a resource on the target access point corresponding to the BSSID of the target access point, and sends a handover response message to the base station, so that the base station sends the handover response message to the user equipment according to the handover response message. The UE sends an RRC message to trigger the UE to perform authentication and key agreement processing with the first gateway.

The processing method of the handover provided by the embodiment, the first gateway receives the handover message sent by the base station, and reserves resources on the target access point according to the handover message, and returns a handover response message to the base station, so that the base station sends the RRC to the UE. And the first gateway sends an authentication protocol success message to the base station, so that the UE sends a handover command to the UE to enable the UE to open the WLAN access to the target interface. In the ingress, the UE can communicate on the WLAN, and the data communication cannot be performed compared to the authentication and key negotiation performed after accessing the new network in the prior art. The method provided in this embodiment is on the target access point. The resources are reserved, so that the UE does not interrupt the service during the network handover process, and the authentication and key agreement processing are performed before the UE accesses the target access point, and the handover time of the cellular network to the WLAN is shortened.

FIG. 11 is a signaling flowchart of a method for processing a handover according to a tenth embodiment of the present invention. Based on the network architecture shown in FIG. 1 , in this embodiment, a user equipment is switched from a cellular network to a WLAN as an example. The technical solution, as shown in Figure 11, the specific process of the method is:

S1101: The base station selects the first gateway according to the BSSID, and sends a handover message to the first gateway. In this embodiment, the base station may determine the first gateway by using the relationship between the target access point and the gateway corresponding to the background query BSSID, and may also obtain the first gateway according to the correspondence between the target access point and the neighboring gateway. The handover message includes a BSSID of the target access point, a VOIP indication, and a MAC address of the UE.

S1102: The first gateway reserves a resource on a target access point corresponding to the BSSID. In this embodiment, the reserved resource on the target access point includes the Internet Protocol voice resource or video resource that the target access point needs to reserve according to the VOIP indication of the UE and the MAC address of the UE. The UE performs voice or video data transmission.

S1103: The first gateway sends a handover response message to the base station.

S1104: The base station sends an RRC message to the UE according to the handover response message, and triggers the UE to perform authentication and key agreement processing with the first gateway.

In this embodiment, the authentication and key agreement processing can be completed by four handshakes, during which all messages are transmitted through the base station.

S1105: The first gateway sends an authentication protocol success message to the base station, and the base station determines that the authentication process is completed. S1106: The base station sends a handover command to the UE, where the handover command includes the target access point.

BSSID.

S1107: The UE opens the WLAN access to the target access point and sends a reconnection message to the target access point.

S1108: The UE initiates a handover attach procedure or the first gateway performs bearer modification processing.

S1109: The PGW switches the UE bearer to the first gateway to complete network switching.

The processing method of the handover provided by the embodiment, the first gateway receives the handover message sent by the base station, and reserves resources on the target access point according to the handover message, and returns a handover response message to the base station, so that the base station sends the RRC to the UE. And the first gateway sends an authentication protocol success message to the base station, where the base station sends a handover command to the UE, so that the UE opens the WLAN access to the target access. The UE can communicate on the WLAN. Compared with the authentication and key negotiation performed after accessing the new network in the prior art, the data communication cannot be performed. The method provided in this embodiment is pre-targeted on the target access point. The resources are reserved, and the UE does not interrupt the service during the network handover process. The authentication and key agreement processing are performed before the UE accesses the target access point, and the handover time of the cellular network to the WLAN is shortened.

FIG. 12 is a flowchart of Embodiment 11 of the processing method of the handover according to the embodiment of the present invention. Based on the network architecture shown in FIG. 1 , in this embodiment, the user equipment is switched from the cellular network to the WLAN as an example. Technical solution, as shown in FIG. 12, the method includes:

S1201: The UE sends a handover message to the mobility management entity MME, where the handover message includes: a BSSID of the target access point.

In this embodiment, the handover message further includes a VOIP indication and a MAC address of the UE. Optionally, the BSSID of the source access point, the ID of the first gateway (IDent), and the random number SNon _S e for key negotiation may also be included.

S1202: The UE receives the handover response message returned by the MME, and performs authentication and key agreement processing with the target access point according to the handover response message.

S1203: The UE turns on the wireless local area network WLAN to access the target access point, and sends a reconnection message to the target access point to complete the handover.

In this embodiment, the reconnect message is encrypted by using the negotiated key, so that the target access point receives the UE, and instructs the first gateway to perform bearer modification to complete the network handover.

In the processing method of the handover provided by the embodiment, the UE sends a handover message to the MME, and receives a handover response message returned by the MME, and the UE performs authentication and key negotiation processing with the first gateway to complete authentication and key agreement. After the processing, the UE opens the WLAN to access the target access point, completes the network handover, and performs authentication authentication and key negotiation processing in advance before the UE accesses the target access point, which is compared in the prior art. The authentication and key negotiation performed after entering the new network cannot perform data communication. The method provided in this embodiment shortens the switching time of the cellular network to the WLAN.

FIG. 13 is a flowchart of a method for processing a handover according to a second embodiment of the present invention. Based on the network architecture shown in FIG. 1 , in this embodiment, a user equipment is switched from a cellular network to a WLAN as an example. Technical solution, as shown in FIG. 13, the method includes:

S1301: The MME receives a handover message sent by the user equipment UE, where the handover message includes: a name BSSID of the target access point.

In this embodiment, the handover message further includes a VOIP indication and a MAC address of the UE, and optionally, may further include a BSSID of the source access point, an identifier ID of the first gateway, and a random number used for key negotiation. SNonse.

S1302: The MME acquires the first gateway according to the BSSID of the target access point, and sends the handover message to the first gateway, where the first gateway reserves resources on the target access point. .

S1303: The MME receives the handover response message returned by the first gateway, and sends the handover response message to the UE, so that the UE and the first gateway perform authentication authentication and a key. Negotiating processing, and opening a wireless local area network WLAN access target access point, and sending a reconnection message to the target access point to complete the handover.

The processing method of the handover provided by the embodiment, the MME receives the handover message sent by the UE, and returns a handover response message to the UE, so that the UE and the first gateway perform authentication authentication and key negotiation processing, and complete authentication authentication and After the key negotiation process, the UE opens the WLAN to access the target access point, completes the network handover, and performs authentication authentication and key negotiation processing in advance before the UE accesses the target access point, compared to the prior art. The authentication and key negotiation performed after accessing the new network cannot perform data communication. The method provided in this embodiment shortens the switching time of the cellular network to the WLAN.

FIG. 14 is a flowchart of a thirteenth embodiment of a method for processing a handover according to the network architecture shown in FIG. 1. In this embodiment, a user equipment is switched from a cellular network to a WLAN as an example. Technical solution, as shown in FIG. 14, the method includes:

S1401: The first gateway receives a handover message sent by the mobility management entity MME, where the handover message includes: a name BSSID of the target access point.

In this embodiment, the handover message further includes a VOIP indication and a MAC address of the UE, and optionally, may further include a BSSID of the source access point, an ID of the first gateway, and a random number SNonse for key negotiation. .

S1402: The first gateway reserves a resource on the target access point corresponding to the BSSID of the target access point, and sends a handover response message to the MME, so that the MME forwards the handover response message to the user equipment. a UE, configured to perform authentication authentication and key agreement processing on the UE and the target access point, and open a WLAN access target access point, and send a reconnection message to the target access point to implement handover. carry out.

Further, while the resource is reserved, the first gateway generates a random number ANo e, and calculates according to a Pairwise Master Key (PMK) obtained from the last attached gateway of the UE and a random number SNonse. Pairwise Transient Key (PTK), And sending the PTK to the access point to complete the key negotiation process of the UE and the access point.

In the processing method of the handover provided by the embodiment, the first gateway receives the handover message sent by the first gateway, and returns a handover response message to the UE, so that the handover response message is sent to the UE, so that the UE performs the handover with the first gateway. After the authentication and the key negotiation process are completed, the UE opens the WLAN to access the target access point, completes the network handover, and performs authentication authentication and key negotiation processing in advance in the UE. The method provided in this embodiment shortens the cellular network to the WLAN by performing the authentication and key negotiation performed after accessing the new network in the prior art. Switch time.

FIG. 15 is a signaling flowchart of a method for processing a handover according to Embodiment 14 of the present invention. Based on the network architecture shown in FIG. 1 , in this embodiment, a user equipment is switched from a cellular network to a WLAN as an example, and the implementation is described in detail. The technical solution of the example, as shown in FIG. 15, the specific process of the method is:

S1501: The UE sends a handover message to the MME, where the handover message includes a BSSID of the target access point.

S1502: The MME acquires the first gateway according to the BSSID.

In this embodiment, the MME may determine the first gateway by querying the relationship between the target access point and the neighboring gateway in the background, or may configure the first gateway according to the correspondence between the target access point and the neighboring gateway.

S1503: The MME sends a handover message to the first gateway.

In this embodiment, the BSSID of the target access point and the BSSID of the source access point, the random number SNonce, and the ID of the last attached gateway of the UE, and the MAC address and VOIP indication of the UE are included.

S1504: The first gateway performs resource reservation on the target access point.

In this embodiment, the first gateway selects the last attached gateway of the UE according to the ID of the last attached gateway of the UE, and obtains the security context of the UE from the gateway, gp: PMK. The first gateway reserves resources on the target access point. Specifically, the first gateway notifies the target access point by using the CAPWAP protocol, and the Internet reserved by the UE according to the VOIP indication of the UE and the MAC address of the UE. A protocol voice resource or a video resource for the UE to perform voice or video data transmission. And generate a random number ANonce, and calculate PTK according to the random numbers SNonce, ANonce, and ,, and give the PTK to the target access point.

S1505: The first gateway sends a handover response message to the MME.

In this embodiment, the handover response message includes a random number ANonce and a network to which the UE last attached. The ID of the gateway, which includes its IP address and MAC address.

S1506: The MME forwards the handover response message to the UE.

S1507: The UE performs authentication authentication and key negotiation processing with the target access point according to the handover response message.

In this embodiment, the UE calculates the PTK according to the PMK, the random number ANonse, and the random number SNonse.

S1508: The UE opens the WLAN access target access point and sends a reconnection message to the target access point, and the message is encrypted by using PTK.

S1509: The target access point accepts the UE, and instructs the first gateway to perform bearer modification processing. S1510: The first gateway performs bearer modification processing, and sends a modification request to the PGW.

S1511: The PGW switches the UE bearer to the first gateway to complete network switching.

In the processing method of the handover provided by the embodiment, the MME sends a handover message to the MME, the MME forwards the handover message to the first gateway, and the handover response message returned by the first gateway to the MME, and the MME sends the handover response message to the UE, to After the authentication authentication and the key negotiation process are performed on the UE and the first gateway, the UE opens the WLAN to access the target access point, completes the network handover, and the UE can communicate on the WLAN. The resource is reserved on the target access point, and the UE does not interrupt the service during the network handover process, and the authentication and key agreement processing are performed in advance before the UE accesses the target access point, compared with the prior art. The authentication and key negotiation performed after accessing the new network cannot perform data communication. The method provided in this embodiment shortens the handover time of the cellular network to the WLAN, and enables the UE to not interrupt the service during the network handover process. .

FIG. 16 is a flowchart of a method for processing a handover according to a fifteenth embodiment of the present invention. Based on the network architecture shown in FIG. 1 , in this embodiment, a user equipment is switched from a WLAN to a cellular network as an example. Technical solution, as shown in FIG. 16, the method includes:

S1601: The UE sends a measurement report to the first gateway, so that the first gateway acquires the target base station that the UE finally accesses according to the measurement report.

In this embodiment, the measurement report includes an identifier of a plurality of neighboring base stations, where the first gateway is a gateway to which the UE is currently connected, and the first gateway determines the correspondence between the access point and the base station stored in the background. The target base station to which the UE is to eventually access.

S1602: The UE receives the handover command sent by the first gateway, and opens an LTE access to the target base station according to the handover command, and performs authentication authentication and key negotiation processing with the target base station. In this embodiment, the handover command received by the UE includes an ECGI.

S1603: The UE sends a negotiation completion message to the MME to complete the handover.

Optionally, after receiving the negotiation completion message, the MME sends a create session message to the SGW/PGW, and establishes a message to the target base station context, so that the target base station allows the UE to access, and the MME wants the UE to send the attach and receive message.

In the processing method of the handover provided by the embodiment, the UE sends a measurement report to the first gateway by using the UE, and the first gateway acquires, according to the measurement report, a target base station to be accessed after the UE switches the network, and the first gateway sends a handover message to the MME, to And causing the MME to send the handover response message to the first gateway, so that the first gateway sends a handover command to the UE, the UE opens the LTE access target base station, performs authentication authentication and key negotiation processing with the target base station, and completes authentication authentication. After the key negotiation process is performed, the UE sends a negotiation completion message to the MME to complete the network handover, and the authentication authentication and the key agreement processing are performed before the UE network handover is completed. Compared with the prior art, the access is new. The authentication and key negotiation performed after the network cannot perform data communication. The method provided in this embodiment shortens the switching time of the cellular network to the WLAN.

FIG. 17 is a flowchart of the sixteenth embodiment of the method for processing a handover according to the network architecture shown in FIG. 1. In this embodiment, the user equipment is switched from the WLAN to the cellular network as an example. Technical solution, as shown in FIG. 17, the method includes:

S1701: The MME receives the handover message sent by the first gateway.

In this embodiment, the handover message includes an ECGI and a VOIP indication.

S1702: The MME sends a reserved resource message to the target base station, so that the target base station performs reserved resources, and returns a reserved identifier.

In this embodiment, the resource reserved by the target base station includes the Internet Protocol voice resource or video resource that the target access point needs to reserve according to the VOIP indication of the UE and the MAC address of the UE, for the UE. Perform voice or video data transmission.

S1703: The MME receives the reservation identifier returned by the target base station, and sends a handover response message to the first gateway, so that the first gateway sends a handover command to the UE, so that the UE opens the LTE access. Go to the target base station, and perform authentication authentication and key agreement processing with the target base station.

S1704: The MME receives the handover complete message sent by the UE, and sends a bearer modification message to the SGW/PGW.

Optionally, the MME sends, to the target base station, a context setup that carries the reservation identifier. And the eNB sends an attach accept message to the UE to complete the network switch.

In the processing method of the handover provided by the embodiment, the MME receives the handover message sent by the first gateway, and the MME sends a resource reservation message to the target base station to enable the target base station to perform resource reservation, and sends a handover response message to the first gateway. The first gateway sends a handover command to the UE, and the UE opens the LTE access target base station, and performs authentication and key agreement processing with the target base station, and after completing the authentication and key agreement processing, the UE sends a negotiation completion message to the MME. To complete the network handover, the UE can communicate on the cellular network, reserve resources on the target base station, and the UE does not interrupt the service during the network handover process, and the authentication and key agreement processing are performed in advance before the UE network handover is completed. Compared with the authentication and key negotiation performed after accessing the new network in the prior art, the data communication cannot be interrupted. The method provided in this embodiment shortens the handover time of the cellular network to the WLAN, and the UE is in the Business is not interrupted during network switching.

FIG. 18 is a flowchart of the seventh embodiment of the processing method of the handover according to the embodiment of the present invention. Based on the network architecture shown in FIG. 1 , in this embodiment, the user equipment is switched from the WLAN to the cellular network as an example. Technical solution, as shown in FIG. 18, the method includes:

S1801: The first gateway receives the measurement report sent by the UE, and obtains the target base station that the UE finally accesses according to the measurement report.

S1802: The first gateway sends a handover message to the MME.

In this embodiment, the handover message includes an ECGI and VOIP indication.

S1803: The first gateway receives the handover response message sent by the MME, and sends a handover command to the UE, so that the UE opens LTE access to the target base station to complete network switching.

In the processing method of the handover provided by the embodiment, the first gateway receives the measurement report sent by the UE, and confirms the target base station that the UE finally accesses according to the measurement report, and sends a handover message to the MME, where the first gateway sends a handover command to the UE. The UE opens the LTE access target base station, and performs authentication authentication and key agreement processing with the target base station. After the authentication and key agreement processing is completed, the UE sends a negotiation complete message to the MME to complete the network handover, and the UE may be in the cellular. Network communication, authentication The authentication and key negotiation process is performed before the completion of the UE network handover. Compared with the authentication and key negotiation performed after accessing the new network in the prior art, the method provided in this embodiment shortens the cellular network to the WLAN. The switching time, and the UE does not interrupt the service during the network switching process.

FIG. 19 is a signaling flowchart of Embodiment 18 of the processing method of the handover according to the present invention. Based on the network architecture shown in FIG. 1 , in this embodiment, the user equipment is switched from the cellular network to the WLAN as an example, and the implementation is described in detail. The technical solution of the example, as shown in FIG. 19, the specific process of the method is:

S1901: The UE sends a measurement report to the first gateway. In this embodiment, the measurement report includes identifiers of a plurality of base stations around the UE.

S1902: The first gateway acquires a target base station that the UE finally accesses according to the measurement report.

In this embodiment, the first gateway determines, according to the correspondence between the access point and the base station stored in the background, the target base station to which the UE is to be finally accessed.

S1903: The first gateway sends a handover message to the MME.

In this embodiment, the handover message packet expands the ECGI and VOIP indications.

S1904: The MME sends a resource reservation message to the target base station.

S1905: The target base station performs resource reservation, and returns a reservation identifier to the MME.

S1906: The MME sends a handover response message to the first gateway.

S1907: The first gateway sends a handover command to the UE according to the handover response message, where the command includes ECGIo.

S1908: The UE opens the LTE access to the target base station according to the handover command, and performs authentication authentication and key negotiation processing with the target base station.

S1909: The UE sends a negotiation completion message to the MME.

S1910: The MME sends a bearer modification message to the SGW/PGW.

S1911: The MME sends a context setup message carrying the reservation identifier to the target base station, so that the target base station acquires the reserved resource.

S1912: The target base station acquires the reserved resource according to the reserved identifier, and the admission control passes.

S1913: The MME sends an attach accept message to the UE to complete the network switch.

In the processing method of the handover provided by the embodiment, the first gateway receives the measurement report sent by the UE, and confirms the target base station that the UE finally accesses according to the measurement report, and sends a handover message to the MME, and the MME sends the handover message to the target base station according to the handover message. a resource reservation message, the target base station performs resource reservation, and returns a reservation identifier to the MME, where the MME sends a handover response message to the first gateway, where the first network The UE sends a handover command to the UE, and the UE opens the LTE access target base station, and performs authentication authentication and key negotiation processing with the target base station. After the authentication and key agreement processing is completed, the UE sends a negotiation completion message to the MME, and the MME sends the message to the MME. The target base station sends a context setup message carrying the reservation identifier, so that the target base station acquires the reserved resource, and the MME sends an attach accept message to the UE to complete the network handover, reserve resources on the target base station, and authenticate the authentication. The key negotiation process is performed before the completion of the UE network handover. Compared with the authentication and key negotiation performed after accessing the new network in the prior art, the method provided in this embodiment shortens the handover of the cellular network to the WLAN. Time, and the UE will not be interrupted during the network handover process.

FIG. 20 is a signaling flowchart of Embodiment 19 of the handover processing method of the present invention. Based on the network architecture shown in FIG. 1 , in this embodiment, the user equipment is switched from the cellular network to the WLAN as an example, and the implementation is described in detail. The technical solution of the example, as shown in FIG. 20, the specific process of the method is:

S2001: The UE sends a measurement report to the first gateway. In this embodiment, the measurement report includes identifiers of a plurality of base stations around the UE.

S2002: The first gateway acquires a target base station that the UE finally accesses according to the measurement report.

S2003: The first gateway sends a handover message to the MME.

In this embodiment, the handover message packet is extended by the ECGI and the VOIP indication, and further includes a transparent container of the source base station to the target base station and a UE temporary identifier that is last stored in the UE, and is used to obtain a security context from the last attached MME of the UE.

S2004: The MME finds the last attached MME according to the UE temporary identifier last saved in the UE and acquires a security context, that is, a PMK.

S2005: The MME sends a resource reservation message to the target base station according to the security context.

In this embodiment, the resource reservation message triggers authentication authentication and key negotiation processing of the target base station and the UE.

S2006: The target base station performs resource reservation, and returns a reservation identifier to the MME.

S2007: The MME sends a handover response message to the first gateway.

In this embodiment, the handover response message includes a transparent container from the source base station to the target base station. S2008: The first gateway sends a handover command to the UE according to the handover response message, where the command includes a transparent container of the source base station to the target base station. S2009: The UE opens the LTE access to the target base station according to the handover command, and sends a handover confirmation message to the target base station.

S2010: The target base station notifies the MME that the handover is completed.

S2011: The MME sends a bearer modification message to the SGW/PGW.

S2012: The SGW/PGW returns a bearer modification response message to the MME to complete the network handover. In the processing method of the handover provided by the embodiment, the first gateway receives the measurement report sent by the UE, and confirms the target base station that the UE finally accesses according to the measurement report, and sends a handover message to the MME, and the MME sends the handover message to the target base station according to the handover message. The resource reservation message triggers the target base station to perform authentication and key agreement processing with the UE, and performs resource reservation, and returns a reservation identifier to the MME, and the MME sends a handover response message to the first gateway, where the first gateway sends the message to the UE. The handover command, the UE opens the LTE access target base station, and the UE sends a handover confirmation message to the target base station, the target base station notifies the MME that the handover is completed, reserves resources on the target base station, and advances the authentication authentication and the key agreement processing in the UE access network. The method provided in this embodiment shortens the handover time of the cellular network to the WLAN, and the UE is in the process of network handover, as compared with the authentication and key negotiation performed after accessing the new network in the prior art. Business will not be interrupted.

FIG. 21 is a schematic structural diagram of Embodiment 1 of a processing apparatus for switching according to the present invention. The processing apparatus shown in FIG. 21 includes: a transceiver module 211 and an access module 212. The transceiver module 211 is configured to receive a handover command sent by the base station, where the handover command includes: a name BSSID of the target access point, and an access module 212, configured to: open the WLAN access to the wireless local area network according to the handover command The target access point corresponding to the BSSID of the target access point; the transceiver module 211 is further configured to send a reconnect message to the target access point, and perform authentication and key agreement with the target access point. Processing to achieve the completion of the switch.

The processing device for the switching provided in this embodiment corresponds to the first embodiment of the method, and the implementation, the principle, and the effect are similar, and details are not described herein again.

FIG. 22 is a schematic structural diagram of Embodiment 2 of a processing apparatus for switching according to the present invention. As shown in FIG. 22, the processing apparatus includes: a transceiver module 221 and a processing module 222. The transceiver module 221 is configured to receive a handover message, where the handover message includes: a name BSSID of the target access point, and a processing module 222, configured to reserve on the target access point corresponding to the BSSID of the target access point. And sending a handover response message to the base station, so that the base station sends the handover command to the user equipment UE according to the handover response message, so that the UE opens the wireless local area network according to the handover command. The WLAN accesses the target access point corresponding to the BSSID of the target access point in the handover command, and sends a reconnection message to the target access point, and performs authentication and authentication with the target access point. Key negotiation processing.

Optionally, the transceiver module 221 is further configured to receive an indication message that is sent by the target access point after performing authentication authentication and key agreement processing with the UE, and perform bearer modification processing according to the indication message. To complete the switch.

The processing device of the switching provided in this embodiment corresponds to the second embodiment of the method, and the implementation, the principle, and the effect are similar, and details are not described herein again.

FIG. 23 is a schematic structural diagram of Embodiment 3 of a processing apparatus for switching according to the present invention. As shown in FIG. 23, the processing apparatus includes: a transceiver module 231 and an acquisition module 232. The transceiver module 231 is configured to receive a handover message sent by the base station, where the handover message includes: a name BSSID of the target access point, and an obtaining module 232, configured to acquire the first gateway according to the BSSID of the target access point, And sending, by the transceiver module, the handover message to the first gateway, where the first gateway reserves resources on the target access point; the transceiver module 231 is further configured to receive the a handover response message returned by the gateway, and sending a non-access stratum NAS message to the user equipment UE according to the handover response message, to trigger the UE to perform authentication authentication and key negotiation processing with the first gateway; The transceiver module 231 is further configured to: after receiving the authentication protocol success message sent by the first gateway, send a handover response message to the base station according to the authentication protocol success message, so that the base station is configured according to the handover response message, Transmitting, to the UE, a handover command carrying a BSSID of the target access point, for the UE to open a WLAN access to the target access point, and sending a heavy Create a message to complete the switch.

The processing device of the switching provided in this embodiment corresponds to the fifth embodiment of the method, and the implementation, the principle, and the effect are similar, and details are not described herein again.

FIG. 24 is a schematic structural diagram of Embodiment 4 of a processing apparatus for switching according to the present invention. As shown in FIG. 24, the processing apparatus includes: a transceiver module 241 and a processing module 242. The transceiver module 241 is configured to receive a handover message sent by the mobility management entity MME, where the handover message includes: a name BSSID of the target access point, and a processing module 242, configured to target the BSSID of the target access point. Reserving resources on the access point, and sending, by the transceiver module, a handover response message to the MME, so that the MME sends a NAS message to the user equipment UE according to the handover response message, to trigger the UE and the The first gateway performs authentication authentication and key negotiation processing. Optionally, the transceiver module 241 is further configured to receive an indication message that is sent by the target access point after performing authentication authentication and key agreement processing with the UE, and perform bearer modification according to the indication message. Process to complete the switch.

The processing device of the switching provided in this embodiment corresponds to the sixth embodiment of the method, and the implementation, the principle, and the effect are similar, and details are not described herein again.

FIG. 25 is a schematic structural diagram of Embodiment 5 of a processing apparatus for switching according to the present invention. As shown in FIG. 25, the processing apparatus includes: a transceiver module 251. The transceiver module 251 is configured to send a handover message, where the handover message includes a name BSSID of the target access point, where the first gateway accesses the target corresponding to the BSSID of the target access point according to the handover message. The receiving and receiving module 251 is further configured to receive a handover response message sent by the first gateway, and send a radio resource control protocol RRC message to the user equipment UE according to the handover response message, to trigger the The UE performs authentication authentication and key agreement processing with the target access point; the transceiver module 251 is further configured to: after receiving the authentication protocol success message sent by the first gateway, according to the authentication protocol success message direction The UE sends a handover command carrying the BSSID of the target access point, so that the UE opens the wireless local area network WLAN to access the target access point, and sends a reconstruction message to complete the handover.

The processing device of the switching provided in this embodiment corresponds to the eighth embodiment of the method, and the implementation, the principle, and the effect are similar, and details are not described herein again.

FIG. 26 is a schematic structural diagram of Embodiment 6 of a processing apparatus for switching according to the present invention. As shown in FIG. 26, the processing apparatus includes: a transceiver module 261 and a processing module 262. The transceiver module 261 is configured to receive a handover message sent by the base station, where the handover message includes: a name BSSID of the target access point, and a processing module 262, configured to target the access point corresponding to the BSSID of the target access point. Reserving a resource, and sending a handover response message to the base station by using the transceiver module, so that the base station sends a radio resource control protocol RRC message to the user equipment UE according to the handover response message, to trigger the UE and The first gateway performs authentication authentication and key negotiation processing.

Optionally, the transceiver module 261 is further configured to receive an indication message that is sent by the target access point after performing authentication authentication and key agreement processing with the UE, and perform bearer modification according to the indication message. Process to complete the switch.

The processing device for the handover provided in this embodiment corresponds to the ninth embodiment of the method, and the implementation, the principle, and the effect are similar, and details are not described herein again.

FIG. 27 is a schematic structural diagram of Embodiment 7 of a processing apparatus for switching according to the present invention, as shown in FIG. The device includes: a transceiver module 271, a processing module 272, and an access module 273. The transceiver module 271 is configured to send a handover message to the mobility management entity MME, where the handover message includes: a name BSSID of the target access point; the transceiver module 271 is further configured to receive a handover response message returned by the MME; The module 272 is configured to perform authentication and key agreement processing with the target access point according to the handover response message, and the access module 273 is configured to open a wireless local area network WLAN access target access point, and The transceiver module sends a reconnect message to the target access point to complete the handover.

The processing device for the switching provided in this embodiment corresponds to the eleventh embodiment of the method, and the implementation, the principle, and the effect are similar, and details are not described herein again.

FIG. 28 is a schematic structural diagram of Embodiment 1 of a processing apparatus for switching according to the present invention. As shown in FIG. 28, the processing apparatus includes: a transceiver module 281 and an acquisition module 282. The transceiver module 281 is configured to receive a handover message sent by the user equipment UE, where the handover message includes: a name BSSID of the target access point, and an obtaining module 282, configured to acquire, according to the BSSID of the target access point, the first a gateway, and sending, by the transceiver module, the handover message to the first gateway, where the first gateway reserves resources on the target access point; the transceiver module 281 is further configured to receive the Transmitting a handover response message returned by the first gateway, and transmitting the handover response message to the UE, so that the UE performs authentication authentication and key negotiation processing with the first gateway, and opens a wireless local area network WLAN. Accessing the target access point and sending a reconnect message to the target access point to complete the handover.

The processing device of the switching provided in this embodiment corresponds to the method embodiment 12, and the implementation manner, the principle, and the effect are similar, and details are not described herein again.

FIG. 29 is a schematic structural diagram of Embodiment 9 of a processing apparatus for switching according to the present invention. The processing device includes: a transceiver module 291 and a processing module 292. The transceiver module 291 is configured to receive a handover message sent by the mobility management entity MME, where the handover message includes: a name BSSID of the target access point, and a processing module 292, configured to target the BSSID of the target access point. Reserving resources on the access point, and sending a handover response message to the MME, so that the MME forwards the handover response message to the user equipment UE, for the UE to authenticate with the target access point. The authentication and key negotiation process are performed, and the WLAN access target access point is opened, and a reconnection message is sent to the target access point to complete the handover.

The processing device of the switching provided in this embodiment corresponds to the thirteenth embodiment of the method, and the implementation, the principle, and the effect are similar, and details are not described herein again. FIG. 30 is a schematic structural diagram of Embodiment 10 of a processing apparatus for switching according to the present invention. As shown in FIG. 30, the apparatus includes: a transceiver module 301 and an access module 302. The transceiver module 301 is configured to send a measurement report to the first gateway, so that the first gateway acquires the target base station that the UE finally accesses according to the measurement report, and the transceiver module 301 is further configured to receive the first a switching command sent by the gateway; the access module 302, configured to: open an LTE access to the target base station according to the handover command, and perform authentication and key agreement processing with the target base station by using the transceiver module 301; The transceiver module 301 is further configured to send, by the UE, a negotiation completion message to the mobility management entity MME, to implement handover completion.

The processing device of the switching provided in this embodiment corresponds to the fifteenth embodiment of the method, and the implementation manner, the principle, and the effect are similar, and details are not described herein again.

FIG. 31 is a schematic structural diagram of Embodiment 11 of a processing apparatus for switching according to the present invention. As shown in FIG. 31, the processing apparatus includes: a transceiver module 311, configured to receive a handover message sent by a first gateway; And sending a reserved resource message to the target base station, so that the target base station performs the reserved resource, and returns a reserved identifier; the transceiver module 311 is further configured to receive the reserved identifier returned by the target base station, and The first gateway sends a handover response message, so that the first gateway sends a handover command to the UE, so that the UE opens the LTE access to the target base station, and performs authentication and key agreement with the target base station. The transceiver module 311 is further configured to receive a handover complete message sent by the UE, and send a bearer modification message to the packet switching gateway S/PGW.

Optionally, the transceiver module 311 is further configured to:

Sending a context setup message carrying the reservation identifier to the target base station, so that the target base station acquires the reserved resource; and sending an attach accept message to the UE to complete the network handover.

The processing device of the switching provided in this embodiment corresponds to the sixteenth embodiment of the method, and the implementation, the principle, and the effect are similar, and details are not described herein again.

FIG. 32 is a schematic structural diagram of Embodiment 12 of a processing apparatus for switching according to the present invention. As shown in FIG. 32, the processing apparatus includes: a transceiver module 321 configured to receive a measurement report sent by the user equipment UE, and obtain a target base station that the UE finally accesses according to the measurement report; Sending a handover message to the mobility management entity MME; the transceiver module 321 is further configured to receive a handover response message sent by the MME, and send a handover command to the UE, so that the UE opens the LTE access to the target Base station to complete network switching.

The processing device for switching provided in this embodiment corresponds to the seventeenth embodiment of the method, and the implementation manner thereof The principle and effect are similar, and will not be described here.

FIG. 33 is a schematic structural diagram of an embodiment of a user equipment according to the present invention. As shown in FIG. 33, the user equipment (UE) includes: a transceiver 331 and a processor 332, where the transceiver 331 is configured to receive a handover command sent by the base station. The switching command includes: a name BSSID of the target access point; the processor 332 is configured to: according to the switching command, turn on the wireless local area network WLAN to access the target access point corresponding to the BSSID of the target access point; the transceiver 331 The target access point sends a reconnection message, and performs authentication authentication and key agreement processing with the target access point to implement handover completion.

The user equipment in this embodiment may be used to perform the technical solution of the processing method of the handover provided by any embodiment of the present invention. The implementation principle and technical effects are similar, and details are not described herein again.

FIG. 34 is a schematic structural diagram of a first gateway according to an embodiment of the present invention, including: a transceiver 341 and a processor 342. The transceiver 341 is configured to receive a handover message, where the handover message includes: a name BSSID of the target access point; the processor 342 is configured to reserve resources on the target access point corresponding to the BSSID of the target access point, and Sending a handover response message to the base station, so that the base station sends the handover command to the user equipment UE according to the handover response message, so that the UE opens the wireless local area network WLAN to access the handover according to the handover command. And a target access point corresponding to the BSSID of the target access point in the command, and sending a reconnection message to the target access point, and performing authentication and key agreement processing with the target access point.

Optionally, the transceiver 341 is further configured to receive an indication message that is sent by the target access point after performing authentication authentication and key agreement processing with the UE, and perform bearer modification processing according to the indication message, To complete the switch.

The first gateway of this embodiment may be used to implement the technical solution of the processing method of the handover provided by any embodiment of the present invention, and the implementation principle and technical effects thereof are similar, and details are not described herein again.

FIG. 35 is a schematic structural diagram of an MME according to an embodiment of the present invention. As shown in FIG. 35, the MME includes: a transceiver 351 and a processor 352. The transceiver 351 is configured to receive a handover message sent by the base station, where the handover message includes: a name BSSID of the target access point, where the processor 352 is configured to acquire the first gateway according to the BSSID of the target access point, and Transmitting a message to the first gateway, where the first gateway reserves resources on the target access point; the transceiver 351 receives a handover response message returned by the first gateway, and according to the handover response The message is sent to the user equipment UE to send a non-access stratum NAS message to trigger the UE to perform authentication authentication and key agreement processing with the first gateway. The transceiver 351 receives the authentication protocol success message sent by the first gateway. After, according to the The authentication protocol success message sends a handover response message to the base station, so that the base station sends a handover command carrying the BSSID of the target access point to the UE according to the handover response message, for the UE The WLAN is opened to access the target access point, and a re-establishment message is sent to complete the handover.

The MME of this embodiment may be used to perform the technical solution of the processing method of the handover provided by any embodiment of the present invention, and the implementation principle and technical effects thereof are similar, and details are not described herein again.

FIG. 36 is a schematic structural diagram of still another embodiment of a first gateway according to the present invention. As shown in FIG. 36, the first gateway includes: a transceiver 361 and a processor 362, where the transceiver 361 is configured to receive a handover message sent by the mobility management entity MME. The handover message includes: a name BSSID of the target access point; the processor 362 is configured to reserve a resource on the target access point corresponding to the BSSID of the target access point, and send a handover response message to the MME, The MME sends a NAS message to the user equipment UE according to the handover response message, to trigger the UE to perform authentication authentication and key agreement processing with the first gateway.

Optionally, the transceiver 361 is further configured to receive an indication message sent by the target access point after performing authentication authentication and key agreement processing with the UE, and perform bearer modification processing according to the indication message, To complete the switch.

37 is a schematic structural diagram of a base station according to an embodiment of the present invention. As shown in FIG. 37, the base station includes: a transceiver 371 and a processor 372, where the transceiver 371 is configured to send a handover message to the first gateway, where the handover message includes a target. a name of the access point, the BSSID, for the first gateway to reserve a resource on the target access point corresponding to the BSSID of the target access point according to the handover message; the transceiver 371 is configured to receive the first a handover response message sent by the gateway, and sending a radio resource control protocol RRC message to the user equipment UE according to the handover response message, to trigger the UE to perform authentication authentication and key agreement processing with the target access point; After receiving the authentication protocol success message sent by the first gateway, the processor 372 sends a handover command carrying the BSSID of the target access point to the UE according to the authentication protocol success message, to The UE is enabled to open a wireless local area network (WLAN) to access the target access point, and send a reconstruction message to complete the handover.

The base station of this embodiment may be used to perform the technical solution of the processing method of the handover provided by any embodiment of the present invention, and the implementation principle and technical effects thereof are similar, and details are not described herein again. 38 is a schematic structural diagram of a first gateway according to another embodiment of the present invention. As shown in FIG. 38, the first gateway includes: a transceiver 381 and a processor 382, where the transceiver 381 is configured to receive a handover message sent by the base station, where the handover is performed. The message includes: a name BSSID of the target access point; the processor 382 is configured to reserve a resource on the target access point corresponding to the BSSID of the target access point, and send a handover response message to the base station, so that the The base station sends a radio resource control protocol RRC message to the user equipment UE according to the handover response message, to trigger the UE to perform authentication authentication and key agreement processing with the first gateway.

Optionally, the transceiver 381 receives the indication message that is sent by the target access point after performing the authentication and key agreement processing with the UE, and performs bearer modification processing according to the indication message to complete the handover. .

FIG. 39 is a schematic structural diagram of still another embodiment of a user equipment according to the present invention. As shown in FIG. 39, the user equipment includes: a transceiver 391 and a processor 392, where the transceiver 391 is configured to send a handover message to the mobility management entity MME, where the handover is performed. The message includes: a name BSSID of the target access point;

The transceiver 391 receives the handover response message returned by the MME, and performs authentication authentication and key agreement processing with the target access point according to the handover response message.

The processor 392 opens the wireless local area network WLAN access target access point and sends a reconnection message to the target access point to complete the handover.

40 is a schematic structural diagram of still another embodiment of the MME according to the present invention. As shown in FIG. 40, the MME includes: a transceiver 401 and a processor 402. The transceiver 401 receives a handover message sent by the user equipment UE, where the handover message includes: a name of the access point BSSID; the processor 402 acquires the first gateway according to the BSSID of the target access point, and sends the handover message to the first gateway, where the first gateway is in the target Receiving a resource on the access point; the transceiver 401 receives the handover response message returned by the first gateway, and sends the handover response message to the UE, so that the UE and the first gateway perform the authentication. Right authentication and key agreement processing, and open the wireless local area network WLAN access target access point, and send a reconnection message to the target access point to complete the handover.

The MME in this embodiment may be used to perform processing of handover provided by any embodiment of the present invention. The technical solution of the method is similar to the technical effect, and will not be described here.

FIG. 41 is a schematic structural diagram of another embodiment of a first gateway according to the present invention. As shown in FIG. 41, the first gateway includes: a transceiver 411 and a processor 412, and the transceiver 411 receives a handover message sent by the mobility management entity MME. The handover message includes: a name BSSID of the target access point;

The processor 412 reserves a resource on the target access point corresponding to the BSSID of the target access point, and sends a handover response message to the MME, so that the MME forwards the handover response message to the user equipment UE. And performing the authentication and key agreement processing on the UE and the target access point, and opening the WLAN access target access point, and sending a reconnection message to the target access point to complete the handover.

42 is a schematic structural diagram of another embodiment of a user equipment according to the present invention. As shown in FIG. 42, the first gateway includes: a transceiver 421, and the transceiver 421 sends a measurement report to the first gateway, so that the first gateway Acquiring, according to the measurement report, the target base station that the UE finally accesses; the transceiver 421 receives the handover command sent by the first gateway, and opens the LTE access to the target base station according to the handover command, and the The target base station performs authentication and key agreement processing; the transceiver 421 sends a negotiation completion message to the mobility management entity MME to implement handover completion.

FIG. 43 is a schematic structural diagram of another embodiment of an MME according to the present invention. As shown in FIG. 43, the MME includes: a transceiver 431, the transceiver 431 receives a handover message sent by the first gateway; and the transceiver 431 sends a reservation to the target base station. a resource message, so that the target base station performs reserved resources, and returns a reservation identifier; the transceiver 431 receives the reservation identifier returned by the target base station, and sends a handover response message to the first gateway, so that The first gateway sends a handover command to the UE, so that the UE opens the LTE access to the target base station, and performs authentication and key agreement processing with the target base station; and the transceiver 431 receives the handover sent by the UE. The message is completed and a bearer modification message is sent to the packet switching gateway S/PGW.

Optionally, the transceiver 431 is further configured to send, to the target base station, a context setup message that carries the reservation identifier, so that the target base station acquires the reserved resource, and the transceiver 431 is further configured to send the identifier to the UE. Attach the accept message to complete the network switch. The ΜΜΕ of the embodiment may be used to implement the technical solution of the processing method of the handover provided by any embodiment of the present invention, and the implementation principle and technical effects thereof are similar, and details are not described herein again.

44 is a schematic structural diagram of a fourth embodiment of a first gateway according to the present invention. As shown in FIG. 44, the first gateway includes: a transceiver 441, configured to receive a measurement report sent by the user equipment UE, and according to The measurement report acquires a target base station that the UE finally accesses; the transceiver 441 is configured to send a handover message to the mobility management entity, and the transceiver 441 is configured to receive the handover response message sent by the UI, and send the handover response message to the UE. And switching a command, so that the UE turns on LTE access to the target base station to complete network switching.

A person skilled in the art can understand that all or part of the steps of implementing the above method embodiments may be implemented by hardware related to program instructions, and the foregoing program may be stored in a computer readable storage medium, when executed, The foregoing steps include the steps of the foregoing method embodiments; and the foregoing storage medium includes: a medium that can store program codes, such as a ROM, a RAM, a magnetic disk, or an optical disk.

Finally, it should be noted that the above embodiments are only for explaining the technical solutions of the present invention, and are not intended to be limiting thereof; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art will understand that The technical solutions described in the foregoing embodiments may be modified, or some or all of the technical features may be equivalently replaced; and the modifications or substitutions do not deviate from the technical solutions of the embodiments of the present invention. range.

Claims

claims

1. A handover processing method, characterized by including:

The user equipment UE receives the handover command sent by the base station, and the handover command includes: the name BSSID of the target access point;

The UE opens the wireless local area network WLAN to access the target access point corresponding to the BSSID of the target access point according to the switching command;

The UE sends a reconnection message to the target access point, and performs authentication and key negotiation with the target access point to complete the handover.

2. A switching processing method, characterized by including:

The first gateway receives the switching message, the switching message includes: the name BSSID of the target access point; the first gateway reserves resources on the target access point corresponding to the BSSID of the target access point, and sends it to the base station Handover response message, so that the base station sends the handover command to the user equipment UE according to the handover response message, so that the UE opens the wireless local area network WLAN access to the user equipment UE according to the handover command. The target access point corresponding to the BSSID of the target access point is sent, a reconnection message is sent to the target access point, and authentication and key negotiation are performed with the target access point.

3. The method according to claim 2, further comprising:

The first gateway receives the instruction message sent by the target access point after completing the authentication and key negotiation process with the UE, and performs bearer modification processing according to the instruction message to complete the handover.

4. A switching processing method, characterized by including:

The mobility management entity MME receives the handover message sent by the base station. The handover message includes: the name BSSID of the target access point;

The MME obtains the first gateway according to the BSSID of the target access point, and sends the switching message to the first gateway, so that the first gateway reserves resources on the target access point. ;

The MME receives the handover response message returned by the first gateway, and sends a non-access layer NAS message to the user equipment UE according to the handover response message to trigger the UE to perform authentication and verification with the first gateway. Key agreement processing;

After receiving the authentication protocol success message sent by the first gateway, the MME The right protocol success message sends a handover response message to the base station, so that the base station sends a handover command carrying the BSSID of the target access point to the UE according to the handover response message for the UE to open. The WLAN accesses the target access point and sends a reestablishment message to complete the handover.

5. A switching processing method, characterized by including:

The first gateway receives the switching message sent by the mobility management entity MME, where the switching message includes: the name BSSID of the target access point;

The first gateway reserves resources on the target access point corresponding to the BSSID of the target access point, and sends a handover response message to the MME, so that the MME sends a message to the user equipment according to the handover response message. The UE sends a NAS message to trigger authentication and key negotiation between the UE and the first gateway.

6. The method according to claim 5, further comprising:

7. A switching processing method, characterized by including:

The base station sends a switching message to the first gateway, where the switching message includes the name of the target access point.

BSSID, for the first gateway to reserve resources on the target access point corresponding to the BSSID of the target access point according to the switching message;

The base station receives the handover response message sent by the first gateway, and sends a radio resource control protocol RRC message to the user equipment UE according to the handover response message to trigger the UE to authenticate with the target access point. Authentication and key agreement processing;

After receiving the authentication protocol success message sent by the first gateway, the base station sends a handover command carrying the BSSID of the target access point to the UE according to the authentication protocol success message for the UE. Open wireless local area network WLAN access to the target access point, and send a reestablishment message to complete the handover.

8. A switching processing method, characterized by including:

The first gateway receives the switching message sent by the base station, where the switching message includes: the name BSSID of the target access point;

The first gateway reserves resources on the target access point corresponding to the BSSID of the target access point. source, and sends a handover response message to the base station, so that the base station sends a radio resource control protocol RRC message to the user equipment UE according to the handover response message, so as to trigger the UE to authenticate with the first gateway. Authentication and key agreement handling.

9. The method according to claim 8, further comprising:

10. A switching processing method, characterized by including:

The user equipment UE sends a handover message to the mobility management entity MME. The handover message includes: the name BSSID of the target access point;

The UE receives the handover response message returned by the MME, and performs authentication and key negotiation processing with the target access point based on the handover response message;

The UE turns on the wireless local area network WLAN to access the target access point, and sends a reconnection message to the target access point to complete the handover.

11. A handover processing method, characterized by including:

The mobility management entity MME receives the handover message sent by the user equipment UE. The handover message includes: the name BSSID of the target access point;

The MME receives the handover response message returned by the first gateway, and sends the handover response message to the UE, so that the UE and the first gateway perform authentication and key negotiation processes, And open the wireless local area network WLAN access target access point, and send a reconnection message to the target access point to complete the handover.

12. A handover processing method, characterized by including:

The first gateway receives a handover message sent by the mobility management entity MME, where the handover message includes: the name BSSID of the target access point;

The first gateway reserves resources on the target access point corresponding to the BSSID of the target access point, and sends a handover response message to the MME, so that the MME forwards the handover response message to the user equipment. UE, for the UE to perform authentication and encryption with the target access point. Key negotiation processing is performed, and the WLAN access target access point is opened, and a reconnection message is sent to the target access point to complete the handover.

13. A handover processing method, characterized by including:

The user equipment UE sends a measurement report to the first gateway, so that the first gateway obtains the target base station that the UE finally accesses based on the measurement report;

The UE receives the switching command sent by the first gateway, opens LTE access to the target base station according to the switching command, and performs authentication and key negotiation with the target base station; the UE The mobility management entity MME sends a negotiation completion message to complete the handover.

14. A handover processing method, characterized by including:

The MME receives the handover message sent by the first gateway;

The MME sends a resource reservation message to the target base station, so that the target base station reserves resources and returns a reservation identifier;

The MME receives the reservation identifier returned by the target base station, and sends a handover response message to the first gateway, so that the first gateway sends a handover command to the UE for the UE to open LTE access. to the target base station, and perform authentication and key negotiation processing with the target base station; the MME receives the handover completion message sent by the UE, and sends a bearer modification message to the packet switching gateway S/PGW.

15. The method according to claim 14, wherein the method further includes: the MME sending a context establishment message carrying the reservation identifier to the target base station, so that the target base station obtains the reservation. H;

The MME sends an attach accept message to the UE to complete network switching.

16. A switching processing method, characterized by including:

The first gateway receives the measurement report sent by the user equipment UE, and obtains the target base station that the UE finally accesses based on the measurement report;

The first gateway sends a handover message to the mobility management entity MME;

The first gateway receives the handover response message sent by the MME, and sends a handover command to the UE, so that the UE opens LTE access to the target base station to complete the network handover.

17. A switching processing device, characterized in that it includes:

A transceiver module, configured to receive a switching command sent by the base station, where the switching command includes: the name BSSID of the target access point; An access module, configured to open a wireless local area network WLAN to access the target access point corresponding to the BSSID of the target access point according to the switching command;

The transceiver module is also configured to send a reconnection message to the target access point, and perform authentication and key negotiation processing with the target access point to complete the handover.

18. A switching processing device, characterized in that it includes:

A transceiver module, configured to receive a switching message, where the switching message includes: the name BSSID of the target access point;

A processing module configured to reserve resources on the target access point corresponding to the BSSID of the target access point, and send a handover response message to the base station, so that the base station sends the handover command according to the handover response message. Give the user equipment UE, so that the UE can open the wireless local area network WLAN to access the target access point corresponding to the BSSID of the target access point in the switching command according to the switching command, and access the target The access point sends a reconnection message, and performs authentication and key negotiation processing with the target access point.

19. The device according to claim 18, further comprising:

The transceiver module is also configured to receive an instruction message sent by the target access point after completing the authentication and key negotiation process with the UE, and perform bearer modification processing according to the instruction message to complete the handover. .

20. A switching processing device, characterized in that it includes:

A transceiver module, configured to receive a switching message sent by the base station, where the switching message includes: the name BSSID of the target access point;

The acquisition module is configured to acquire the first gateway according to the BSSID of the target access point, and send the switching message to the first gateway through the transceiver module, so that the first gateway can connect to the target access point. Reserve resources on the access point;

The transceiver module is also configured to receive a handover response message returned by the first gateway, and send a non-access layer NAS message to the user equipment UE according to the handover response message to trigger the UE to communicate with the first gateway. Authentication and key negotiation processing;

The transceiver module is also configured to, after receiving the authentication protocol success message sent by the first gateway, send a handover response message to the base station according to the authentication protocol success message, so that the base station responds according to the handover response message. , sending a handover command carrying the BSSID of the target access point to the UE, so that the UE can open WLAN access to the target access point, and send a reestablishment message, to complete the switch.

21. A switching processing device, characterized in that it includes:

A transceiver module, configured to receive a handover message sent by the mobility management entity MME, where the handover message includes: the name BSSID of the target access point;

A processing module, configured to reserve resources on the target access point corresponding to the BSSID of the target access point, and send a handover response message to the MME through the transceiver module, so that the MME responds according to the handover response message, sending a NAS message to the user equipment UE to trigger authentication and key negotiation processing between the UE and the first gateway.

22. The device according to claim 21, further comprising:

23. A switching processing device, characterized in that it includes:

A transceiver module, configured to send a switching message, where the switching message includes the name BSSID of the target access point, so that the first gateway can select the target access point corresponding to the BSSID of the target access point according to the switching message. Reserve resources;

The transceiver module is also configured to receive a handover response message sent by the first gateway, and send a radio resource control protocol RRC message to the user equipment UE according to the handover response message to trigger the UE to access the target. Click to perform authentication and key negotiation processing;

The transceiver module is further configured to, after receiving the authentication protocol success message sent by the first gateway, send a switching command carrying the BSSID of the target access point to the UE according to the authentication protocol success message, so as to For the UE to open a wireless local area network WLAN to access the target access point, and send a reestablishment message to complete the handover.

24. A switching processing device, characterized in that it includes:

A processing module, configured to reserve resources on the target access point corresponding to the BSSID of the target access point, and send a handover response message to the base station through the transceiver module, so that the base station responds according to the handover response message, sending a radio resource control protocol RRC message to the user equipment UE to trigger authentication and key negotiation processing between the UE and the first gateway.

25. The device according to claim 24, further comprising:

26. A handover processing method, characterized by including:

A transceiver module, configured to send a handover message to the mobility management entity MME, where the handover message includes: the name BSSID of the target access point;

The transceiver module is also configured to receive a handover response message returned by the MME;

A processing module, configured to perform authentication and key negotiation processing with the target access point according to the handover response message;

The access module is used to open the wireless local area network WLAN to access the target access point, and send a reconnection message to the target access point through the transceiver module to complete the handover.

27. A switching processing device, characterized in that it includes:

A transceiver module, configured to receive a switching message sent by the user equipment UE, where the switching message includes: the name BSSID of the target access point;

The transceiver module is also configured to receive a handover response message returned by the first gateway, and send the handover response message to the UE, so that the UE and the first gateway perform authentication and encryption. Key negotiation processing is performed, and the wireless local area network WLAN access target access point is opened, and a reconnection message is sent to the target access point to complete the handover.

28. A switching processing device, characterized in that it includes:

A processing module configured to reserve resources on the target access point corresponding to the BSSID of the target access point, and send a handover response message to the MME, so that the MME forwards the handover response message to the user equipment. UE, for the UE to perform authentication and key negotiation processing with the target access point, open WLAN access to the target access point, and send a reconnection message to the target access point to implement handover. Finish.

29. A switching processing device, characterized in that it includes:

A transceiver module, configured to send a measurement report to the first gateway, so that the first gateway obtains the target base station that the UE finally accesses based on the measurement report;

The transceiver module is also used to receive the switching command sent by the first gateway;

An access module, configured to open LTE access to the target base station according to the handover command, and perform authentication and key negotiation processing with the target base station through the transceiver module;

The transceiver module is also configured for the UE to send a negotiation completion message to the mobility management entity MME to complete the handover.

30. A switching processing device, characterized in that it includes:

A transceiver module, configured to receive the switching message sent by the first gateway;

The transceiver module is also used to send a resource reservation message to the target base station, so that the target base station reserves resources and returns a reservation identification;

The transceiver module is also configured to receive the reservation identification returned by the target base station, and send a handover response message to the first gateway, so that the first gateway sends a handover command to the UE for the UE. Open LTE access to the target base station, and perform authentication and key negotiation with the target base station;

The transceiver module is also configured to receive the handover completion message sent by the UE, and send a bearer modification message to the packet switching gateway S/PGW.

31. The apparatus according to claim 30, wherein the transceiver module is further configured to: send a context establishment message carrying the reservation identifier to the target base station, so that the target base station obtains the reserved resource;

Send an attachment accept message to the UE to complete network switching.

32. A switching processing device, characterized in that it includes:

A transceiver module, configured to receive a measurement report sent by the user equipment UE, and obtain the target base station that the UE finally accesses based on the measurement report;

The transceiver module is also used to send a handover message to the mobility management entity MME;

The transceiver module is also configured to receive the handover response message sent by the MME, and send the

The UE sends a handover command to enable the UE to open LTE access to the target base station to complete network switching.