WO2014161161A1

WO2014161161A1 - Method, device and system for switching different radio access networks

Info

Publication number: WO2014161161A1
Application number: PCT/CN2013/073670
Authority: WO
Inventors: 陈燕燕; 周铮; 李秉肇; 支玉亮
Original assignee: 华为技术有限公司
Priority date: 2013-04-02
Filing date: 2013-04-02
Publication date: 2014-10-09
Also published as: CN104255061A; CN104255061B

Abstract

Provided are a method, device and system for switching different radio access networks. The method comprises: a first access network device sending a first switching preparation request message to a second access network device through a first interface, so as to enable the second access network device to prepare an air-interface switching resource configuration parameter for a user equipment according to the first switching preparation request message; sending a second switching preparation request message to a first core network device, so as to enable the first core network device to send the second switching preparation request message to the second access network device through a second core network device, and enable the second access network device to send the air-interface switching resource configuration parameter prepared for the user equipment to the first core network device through the second core network device; receiving the air-interface switching resource configuration parameter sent by the first core network device; and sending to the user equipment a switching message including the air-interface switching resource configuration parameter, so as to enable the user equipment to be switched from the first access network to the second access network according to the switching message. The switching time delay can be reduced, and the switching efficiency can be improved.

Description

TECHNICAL FIELD The present invention relates to the field of communications technologies, and in particular, to a switching method, apparatus, and system for different radio access networks. Background technique

At present, different types of radio access networks are provided with respective access network devices and core network devices, for example, in a global Terrestrial Radio Access Network (UTRAN) communication system, access network devices. Including radio network controller (RNC) and base station (NodeB), the core network equipment connected to the RNC is a GPRS Service Support Node (SGSN), and, for example, in Long Term Evolution (Long Term Evolution, In the LTE communication system, the access network device is an Evolved Node (eNB), and the core network device connected to the eNB is a Mobility Management Entity (MME).

When the user equipment switches between different radio access networks, the signaling interaction between the access network devices corresponding to different standard radio access networks needs to be transmitted through the directly connected core network devices, for example, from UTRAN. When switching to LTE, all the signaling used in the handover preparation phase needs to be transmitted from the RNC to the SGSN, and then transmitted by the SGSN to the MME, and transmitted by the MME to the eNB. Therefore, there are many signaling interactions between the access network device and the core network device, which increases the handover delay and reduces the switching efficiency. Summary of the invention

The invention provides a method, a device and a system for switching different radio access networks, which can reduce handover delay and improve handover efficiency.

The first aspect provides a method for switching between different radio access networks, where the user equipment is switched from the first access network to the second access network, where the first access network and the second interface The access network is a radio access network of different standards, and the method includes: the first access network device sends a first handover preparation request message to the second access network device by using the first interface, where the first handover preparation request message is included And the second access network device prepares an air interface switching resource configuration parameter for the user equipment corresponding to the user equipment identifier according to the first handover preparation request message; the first access network device sends the first network connection device to the first core network device. a handover preparation request message, where the second handover preparation request message includes a user equipment identifier, so that the first core network device sends the second handover preparation request message to the second access by using the second core network device. The network device, configured to send, by the second access network device, the air interface switching resource configuration parameter prepared for the user equipment corresponding to the user equipment identifier to the first core by using the second core network device according to the user equipment identifier The first access network device receives the second handover preparation response message sent by the first core network device, where the second handover preparation response message includes an air interface handover resource configuration parameter; the first access The network device sends a handover message to the user equipment corresponding to the user equipment identifier, where the handover message includes the air interface Replacing the resource configuration parameter, so that the user equipment switches from the first access network to the second access network according to the handover message; the first access network device and the first core network device Located in the first access network, the second access network device and the second core network device are located in the second access network.

Based on the first aspect, in a first possible implementation, the first access network device includes a radio resource control device of the first access network, and the second access network device includes the second a base station of the access network and a radio resource control device, where the radio resource control device of the first access network and the base station of the second access network are located in the same multi-standard base station device, where the first access network The radio resource control device and the base station of the second access network are connected by using an interface unit in the multi-standard base station device; the interface unit in the multi-standard base station device is signaling between processing modules corresponding to different standard base stations. a communication connection between the radio resource control device of the first access network and the radio resource control device of the second access network through a first interface; the first interface is the first access network An interface between the multi-standard base station device and the radio resource control device of the second access network where the RRC device is located; or the first access network device includes the first access network device a station and a radio resource control device, where the second access network device includes a radio resource control device of the second access network, and radio resource control of the base station of the first access network and the second access network The device is located in the same multi-standard base station device, and the base station of the first access network and the radio resource control device of the second access network perform communication connection through an interface unit in the multi-standard base station device; Communicating between the radio resource control device of the access network and the radio resource control device of the second access network through the first interface The first interface is an interface between the multi-standard base station device where the radio resource control device of the second access network is located and the radio resource control device of the first access network.

Based on the first aspect or the first possible implementation manner of the first aspect, in a second possible implementation manner, if the first access network is a long term evolution LTE access network, the first core network device a mobility management entity MME; the second handover preparation response message sent by the first core network device further includes a non-access stratum security parameter, where the non-access stratum security parameter is adopted by the first core network device After the second core network device receives the air interface switching resource configuration parameter prepared by the user equipment corresponding to the user equipment identifier, the non-access layer allocated by the user equipment corresponding to the user equipment identifier Safety parameters.

Based on the second possible implementation manner of the first aspect, in a third possible implementation manner, if the first access network is a long term evolution LTE access network, the first core network device is mobility management. An entity MME, when the first access network device sends the first handover preparation request message to the second access network device by using the first interface; The second handover preparation request message sent by the core network device includes the user equipment identifier and the indication information, where the indication information is used to request the first core network device to allocate the non-access layer security parameter to the user equipment in advance. And the first core network device is configured to allocate a non-access stratum security parameter to the user equipment corresponding to the user equipment identifier according to the indication information and the user equipment identifier, and secure the non-access stratum layer. Sending, by the second core network device, the parameter to the second access network device, and receiving, by using the first interface, the first handover preparation response message sent by the second access network device, The first handover preparation response message includes the air interface switching resource configuration parameter and the non-access layer security parameter; sending, to the user equipment corresponding to the user equipment identifier, a handover message, where the handover message includes the air interface And switching the resource configuration parameter and the non-access stratum security parameter, so that the user equipment switches from the first access network to the second access network according to the handover message; based on the first aspect or the first The first or the second or the third possible implementation manner of the aspect, in a fourth possible implementation, the first access network device sends the first to the second access network device by using the first interface After the handover preparation request message, the first access network device receives the handover resource preparation failure message sent by the second access network device by using the first interface.

According to the first aspect or the first or second or the third possible implementation manner of the first aspect, in a fifth possible implementation manner, the first access network device sends the first access network device to the first core network device After the second handover preparation request message is sent, the first access network device receives the handover preparation failure message sent by the first core network device, and sends the handover preparation failure message to the second interface through the first interface. The network access device is configured to enable the second access network device to release the air interface switching resource configuration parameter prepared by the user equipment corresponding to the user equipment identifier according to the handover preparation failure message, where the handover preparation failure message includes the user equipment identifier, or The first access network device receives, by using the first interface, a handover preparation failure message sent by the second access network device, where the handover preparation failure message is that the second core network device sends to the second connection when the handover preparation fails. The message sent by the network access device.

Based on the first aspect or the first to fifth possible implementation manners of the first aspect, in a sixth possible implementation, if the first access network is a long term evolution LTE access network, The second access network is a universal mobile communication system UMTS access network, or the first access network is a UMTS access network, and the second access network is a long-term evolution LTE access network; The interface is an Iub interface.

Based on the first aspect or the first to fifth possible implementation manners of the first aspect, in a seventh possible implementation, if the first access network is a long term evolution LTE access network, The second access network is a universal mobile communication system UMTS access network, and the user equipment identifier includes a cell radio network temporary identifier C-RNTI, an international mobile subscriber identity IMSI, and a handover source evolved base station eNB allocated for the user equipment. At least one of the eNB UE X2AP IDs is uniquely identified in the source evolved base station eNB.

Based on the first aspect or any one of the first to fifth possible implementation manners of the first aspect, in the eighth possible implementation manner, if the first access network is a universal mobile communication system UMTS access network, The second access network is a long term evolution LTE access network, and the user equipment identifier includes a radio network temporary identifier U-RNTI of the global terrestrial radio access network UTRAN, and the handover source radio network controller RNC is the user equipment. Assigning at least one of the S-RNTI, the International Mobile Subscriber Identity (IMSI) uniquely identified in the source radio network controller RNC.

In a second aspect, a method for switching between different radio access networks is provided, where the user equipment switches from the first access network to the second access network, the first access network and the second connection The access network is a radio access network of different standards, and the method includes: receiving, by the first access network device, a first handover preparation request message sent by the first access network device by using the first interface, where the first handover preparation request message includes the user Device identification; the second access network device cancels according to the first handover preparation request The user equipment prepares an air interface switching resource configuration parameter for the user equipment corresponding to the user equipment identifier; the second access network device receives a second handover preparation request message sent by the second core network device, where the second handover preparation request message is The first access network device sends a message to the second core network device by using the first core network device, where the second handover preparation request message includes a user equipment identifier, and the second access network device The air interface switching resource configuration parameter prepared by the user equipment corresponding to the user equipment identifier is sent to the first core network device by the second core network device, so that the first core network device sends the first access The network device sends a second handover preparation response message, where the second handover preparation response message includes an air interface handover resource configuration parameter prepared by the second access network device for the user equipment corresponding to the user equipment identifier, so that the The first access network device sends a handover message to the user equipment corresponding to the user equipment identifier, where the handover message includes the air interface handover resource Configuring a parameter, so that the user equipment switches from the first access network to the second access network according to the handover message; the first access network device and the first core network device are located at the The first access network, the second access network device and the second core network device are located in the second access network.

Based on the second aspect, in a first possible implementation manner, the first access network device includes a radio resource control device of the first access network, and the second access network device includes the second a base station of the access network and a radio resource control device, where the radio resource control device of the first access network and the base station of the second access network are located in the same multi-standard base station device, where the first access network The radio resource control device and the base station of the second access network are connected by using an interface unit in the multi-standard base station device; the interface unit is between the processing modules corresponding to different standard base stations in the multi-standard base station device a signaling channel; the radio resource control device of the first access network and the radio resource control device of the second access network are connected by using a first interface; the first interface is the first interface An interface between the multi-standard base station device of the network access control device and the radio resource control device of the second access network; or the first access network device includes the first access a base station of the network and a radio resource control device, where the second access network device includes a radio resource control device of the second access network, and a radio base station of the first access network and the second access network The resource control device is located in the same multi-standard base station device, and the base station of the first access network and the radio resource control device of the second access network communicate through the interface unit in the multi-standard base station device; The radio resource control device of the first access network and the radio resource control device of the second access network pass through the first interface. The first communication interface is an interface between the multi-standard base station device where the radio resource control device of the second access network is located and the radio resource control device of the first access network.

Based on the second aspect or the first possible implementation manner of the second aspect, in the second possible implementation manner, if the first access network is a long term evolution LTE access network, the first core network device After the first access network device receives the first handover preparation request message sent by the first access network device, the second access network device includes: the second access network device receives The non-access stratum security parameter sent by the second core network device, where the non-access stratum security parameter is sent by the first core network device according to the second handover preparation request message sent by the first access network device The user equipment identifier and the indication information are included, the non-access stratum security parameter is allocated to the user equipment corresponding to the user equipment identifier, and the non-access stratum security parameter is sent to the second core network device; The interface sends a first handover preparation response message to the first access network device, where the first handover preparation response message includes the air interface handover resource configuration parameter and the non-access layer All the parameters are used to enable the first access network device to send a handover message to the user equipment corresponding to the user equipment identifier, where the handover message includes the air interface handover resource configuration parameter and the non-access layer security parameter, The user equipment is switched from the first access network to the second access network according to the handover message.

According to the second aspect or the first or second possible implementation manner of the second aspect, in a third possible implementation, the second access network device receives the first access network by using a first interface After the first handover preparation request message sent by the device, the second access network device sends a handover resource preparation failure message to the first access network device by using the first interface.

According to the second or second possible implementation manner of the second aspect, in a fourth possible implementation, the second access network device receives the first access network by using a first interface After the first handover preparation request message sent by the device, the second access network device receives, by using the first interface, a handover preparation failure message sent by the first access network device, where the handover preparation failure message includes The user equipment identifier is translated into an air interface switching resource configuration parameter prepared by the user equipment corresponding to the user equipment identifier, and the handover preparation failure message is that the first core network device sends the first connection to the first core network device when the handover preparation fails. The second access network device receives the handover preparation failure message sent by the second core network device, where the handover preparation failure message includes the user equipment identifier, and is released as the user. The air interface switching resource configuration parameter prepared by the user equipment corresponding to the device identifier, where the handover preparation failure message is The second core network device sends the second core network device to the second access network device when the handover preparation fails. A third aspect provides a method for switching between different radio access networks, where the user equipment is switched from the first access network to the second access network, where the first access network and the second connection The access network is a radio access network of different standards, including: the first access network is a long-term evolution LTE access network, and the first core network device is a mobility management entity MME; the first core network device receives the first a second handover preparation request message sent by the access network device, where the second handover preparation request message includes the indication information and the user equipment identifier; the indication information is used to request the first core network device to be the user equipment identifier The corresponding user equipment allocates non-access stratum security parameter information in advance; and allocates non-access stratum security parameters to the user equipment corresponding to the user equipment identifier according to the indication information and the user equipment identifier; The layer security parameter is sent to the second access network device by using the second core network device, so that the second access network device sends the first cut to the first access network device by using the first interface. Preparing a response message, where the first handover preparation response message includes an air interface switching resource configuration parameter prepared by the second access network device for the user equipment corresponding to the user equipment identifier, and the first core network device is the The non-access stratum security parameter allocated by the user equipment corresponding to the user equipment identifier, so that the first access network device sends a handover message to the user equipment, where the handover message includes the air interface handover resource configuration parameter and the Non-access stratum security parameters, such that the user equipment switches from the first access network to the second access network according to the handover message; the first access network device and the first The core network device is located in the first access network, and the second access network device and the second core network device are located in the second access network.

Based on the third aspect, in a first possible implementation manner, the first access network device includes a radio resource control device of the first access network, and the second access network device includes the second a base station of the access network and a radio resource control device, where the radio resource control device of the first access network and the base station of the second access network are located in the same multi-standard base station device, where the first access network The radio resource control device and the base station of the second access network are connected by using an interface unit in the multi-standard base station device; the interface unit is between the processing modules corresponding to different standard base stations in the multi-standard base station device a signaling channel; the radio resource control device of the first access network and the radio resource control device of the second access network are connected by using a first interface; the first interface is the first interface An interface between the multi-standard base station device in which the access radio resource control device is located and the radio resource control device of the second access network; or, the An access network device includes a base station and a radio resource control device of the first access network, where the second access network device includes a radio resource control device of the second access network, and the first access network The base station and the radio resource control device of the second access network are located in the same multi-standard base station device, and the base station of the first access network and the radio resource control device of the second access network pass the The interface unit in the base station device performs a communication connection; the radio resource control device of the first access network and the radio resource control device of the second access network perform a communication connection through the first interface; The interface is an interface between the multi-standard base station device where the radio resource control device of the second access network is located and the radio resource control device of the first access network.

According to the third aspect, or the first possible implementation manner of the third aspect, in a second possible implementation, the first core network device receives a second handover preparation request message sent by the first access network device After the first core network device sends a handover preparation failure message to the first access network device, the handover preparation failure message includes a user equipment identifier, so that the first access network device The handover preparation failure message is sent to the second access network device by using the first interface, so that the second access network device is released according to the handover preparation failure message, and is released for the user equipment corresponding to the user equipment identifier. The air interface switches resource configuration parameters.

A fourth aspect of the present invention provides a first access network device, which is located in a first access network, and is applied to a scenario in which a user equipment is switched from a first access network to a second access network, where the first access network And the second access network is a radio access network of different standards, and the method includes: a first sending module, configured to send, by using the first interface, a first handover preparation request message to the second access network device, where the first handover The preparation request message includes a user equipment identifier, so that the second access network device prepares an air interface handover resource configuration parameter for the user equipment corresponding to the user equipment identifier according to the first handover preparation request message; And sending, by the first core network device, a second handover preparation request message, where the second handover preparation request message includes the user equipment identifier, so that the first core network device sends the second handover preparation request message And sending, by the second core network device, the second access network device, so that the second access network device, according to the user equipment identifier, The air interface switching resource configuration parameter prepared by the user equipment is sent to the first core network device by using the second core network device. The first receiving module is configured to receive the second handover preparation response message sent by the first core network device. The second handover preparation response message includes an air interface switching resource configuration parameter, and the third sending module is configured to: after the first receiving module receives the second handover preparation response message sent by the first core network device, Sending a handover message to the user equipment, where the handover message includes the air interface handover resource configuration parameter, so that the user equipment switches from the first access network to the second access according to the handover message. The first access network device and the first core network device are located in the first access network, and the second access network device and the second core network device are located in the second access network.

According to the fourth aspect, in a first possible implementation manner, the first access network device includes a radio resource control device of the first access network, and the second access network device includes the second a base station of the access network and a radio resource control device, where the radio resource control device of the first access network and the base station of the second access network are located in the same multi-standard base station device, where the first access network The radio resource control device and the base station of the second access network are connected by using an interface unit in the multi-standard base station device; the interface unit is between the processing modules corresponding to different standard base stations in the multi-standard base station device a signaling channel; the radio resource control device of the first access network and the radio resource control device of the second access network are connected by using a first interface; the first interface is the first interface An interface between the multi-standard base station device in which the network access control device is located and the radio resource control device in the second access network; or the first access network device includes the a base station of the access network and a radio resource control device, the second access network device comprising a radio resource control device of the second access network, a base station of the first access network, and the second access The radio resource control device of the network is located in the same multi-standard base station device, and the base station of the first access network and the radio resource control device of the second access network communicate through the interface unit in the multi-standard base station device a communication connection between the radio resource control device of the first access network and the radio resource control device of the second access network through a first interface; the first interface is a wireless connection of the second access network An interface between the multi-standard base station device where the resource control device is located and the radio resource control device of the first access network.

According to the fourth aspect, or the first possible implementation manner of the fourth aspect, in the second possible implementation, if the first access network is a long term evolution LTE access network, the first core network device a mobility management entity MME; the second handover preparation response message sent by the first core network device further includes a non-access stratum security parameter, where the non-access stratum security parameter is adopted by the first core network device After the second core network device receives the air interface switching resource configuration parameter prepared by the second access network device for the user equipment corresponding to the user equipment identifier, the user equipment identifier corresponding to the user equipment identifier is not connected. Incoming security parameters.

Based on the second possible implementation of the fourth aspect, in a third possible implementation If the first access network is a long term evolution LTE access network, and the first core network device is a mobility management entity MME, the second sending module sends the first to the first core network device. The second handover preparation request message includes the user equipment identifier and the indication information, where the indication information is used to request the first core network device to allocate the non-access layer security parameter information to the user equipment corresponding to the user equipment identifier in advance; The first core network device allocates a non-access stratum security parameter to the user equipment corresponding to the user equipment identifier according to the indication information and the user equipment identifier, and passes the non-access stratum security parameter by using the The second core network device is sent to the second access network device; the first access network device further includes: a second receiving module, configured to receive, by using the first interface, the second access network device a handover preparation response message, where the first handover preparation response message includes an air interface handover resource configuration parameter and a non-access layer security parameter; the third sending module is configured to be used in the Receiving, by the second receiving module, the first handover preparation response message sent by the second access network device, sending, to the user equipment, a handover message, where the handover message includes the air interface handover resource configuration parameter and the non-connection Incorporating security parameters, so that the user equipment switches from the first access network to the second access network according to the handover message; based on the fourth aspect or the first to third aspects of the fourth aspect A possible implementation manner, in a fourth possible implementation manner, the method further includes: the second receiving module, configured to receive, by using the first interface, a handover resource preparation failure that is sent by the second access network device Message.

The first receiving module is further configured to receive the first core network device according to the fourth aspect, or any one of the first to the third possible implementation manners of the fourth aspect, Sending a handover preparation failure message, and sending the handover preparation failure message to the second access network device by using the first interface, so that the second access network device is translated according to the handover preparation failure message The user equipment identifies an air interface switching resource configuration parameter that is prepared by the user equipment, where the handover preparation failure message includes a user equipment identifier, or the second receiving module is further configured to receive the second interface by using the first interface. The handover preparation failure message sent by the access network device, where the handover preparation failure message is a message sent by the second core network device to the second access network device when the handover preparation fails.

The fifth aspect provides a second access network device, where the second access network is located in a scenario where the user equipment is switched from the first access network to the second access network, where the first access network And the second access network is a radio access network of a different system, where the second access network device includes: a first receiving module, configured to receive, by using the first interface, the first sending by the first access network device One switch preparation a request message, the first handover preparation request message includes a user equipment identifier, and a configuration module, configured to: after the first receiving module receives the first handover preparation request message sent by the first access network device, The first handover preparation request message is configured to prepare an air interface switching resource configuration parameter for the user equipment corresponding to the user equipment identifier, and the second receiving module is configured to receive a second handover preparation request message sent by the second core network device, where the The second handover preparation request message is a message that is sent by the first access network device to the second core network device by using the first core network device, where the second handover preparation request message includes a user equipment identifier; a sending module, configured to send the air interface switching resource configuration parameter prepared by the user equipment corresponding to the user equipment identity to the first core network device by using the second core network device, so that the first core network device Sending a second handover preparation response message to the first access network device, where the second handover preparation response message is included The second access network device is an air interface switching resource configuration parameter prepared by the user equipment corresponding to the user equipment identifier, so that the first access network device sends a handover message to the user equipment, where the handover message is The air interface switching resource configuration parameter is included, so that the user equipment switches from the first access network to the second access network according to the handover message; the first access network device and the first A core network device is located in the first access network, and the second access network device and the second core network device are located in the second access network.

Based on the fifth aspect, in a first possible implementation manner, the first access network device includes a radio resource control device of the first access network, and the second access network device includes the second a base station of the access network and a radio resource control device, where the radio resource control device of the first access network and the base station of the second access network are located in the same multi-standard base station device, where the first access network The radio resource control device and the base station of the second access network are connected by using an interface unit in the multi-standard base station device; the interface unit is between the processing modules corresponding to different standard base stations in the multi-standard base station device a signaling channel; the radio resource control device of the first access network and the radio resource control device of the second access network are connected by using a first interface; the first interface is the first interface An interface between the multi-standard base station device of the network access control device and the radio resource control device of the second access network; or the first access network device includes the first access a base station of the network and a radio resource control device, where the second access network device includes a radio resource control device of the second access network, and a radio base station of the first access network and the second access network The resource control device is located in the same multi-standard base station device, and the base station of the first access network and the radio resource control device of the second access network pass through The interface unit in the multi-standard base station device performs a communication connection; the radio resource control device of the first access network and the radio resource control device of the second access network perform a communication connection through the first interface; The first interface is an interface between the multi-standard base station device where the radio resource control device of the second access network is located and the radio resource control device of the first access network.

Based on the fifth aspect or the first possible implementation manner of the fifth aspect, in a second possible implementation manner, if the first access network is a long term evolution LTE access network, the first core network device a mobility management entity MME; the second receiving module is further configured to receive a non-access stratum security parameter sent by the second core network device, where the non-access stratum security parameter is the first core network device Assigning a non-access stratum security parameter to the user equipment corresponding to the user equipment identifier according to the user equipment identifier and the indication information included in the second handover preparation request message sent by the first access network device, and The access layer security parameter is sent to the second core network device, and the second sending module is configured to: after the second receiving module receives the non-access layer security parameter sent by the second core network device, The first interface sends a first handover preparation response message to the first access network device, where the first handover preparation response message includes the air interface handover resource configuration parameter and the non-connection The layer security parameter is configured to enable the first access network device to send a handover message to the user equipment, where the handover message includes the air interface handover resource configuration parameter and the non-access layer security parameter, so that the The user equipment switches from the first access network to the second access network according to the handover message.

The first or second possible implementation manner of the fifth aspect or the fifth aspect, in a third possible implementation, the second sending module is further configured to use the first interface to the first interface The network access device sends a handover resource preparation failure message.

The first or second possible implementation manner of the fifth aspect or the fifth aspect, in a fourth possible implementation, the first receiving module is further configured to receive the first interface by using a first interface a handover preparation failure message sent by the network access device, where the handover preparation failure message includes the user equipment identifier, and the air interface handover resource configuration parameter prepared by the user equipment corresponding to the user equipment identifier, the handover preparation failure message And sending, by the second receiving module, the handover preparation failure sent by the second core network device to be sent to the first access network device; The message that the handover preparation failure message includes the user equipment identifier, and the air interface switching resource configuration parameter prepared by the user equipment corresponding to the user equipment identifier is released, and the handover preparation failure message is the second core network. The device sends to the second access network device when the handover preparation fails.

According to a sixth aspect, a first core network device is provided, where the first access network is located, and is applied to a scenario where the user equipment is switched from the first access network to the second access network, where the first access network is The second access network is a radio access network of different standards, the first access network is a long-term evolution LTE access network, and the first core network device is a mobility management entity MME; the first core network device The receiving module is configured to receive a second handover preparation request message sent by the first access network device, where the second handover preparation request message includes indication information and a user equipment identifier, where the indication information is used to request the a core network device allocates non-access layer security parameter information to the user equipment corresponding to the user equipment identifier in advance; and an allocation module, configured to use, according to the indication information received by the receiving module, the user equipment identifier, the user equipment Identifying the corresponding user equipment to allocate the non-access stratum security parameter; the sending module, configured to pass the non-access stratum security parameter allocated by the allocating module to the second core network device And sending, by the second access network device, the first access preparation response message to the first access network device by using the first interface, where the first handover preparation response message is included The second access network device is configured to: the air interface switching resource configuration parameter prepared by the user equipment corresponding to the user equipment identifier, and the non-access layer security allocated by the first core network device to the user equipment corresponding to the user equipment identifier The parameter is configured to enable the first access network device to send a handover message to the user equipment, where the handover message includes the air interface handover resource configuration parameter and the non-access layer security parameter, so that the user equipment Switching from the first access network to the second access network according to the handover message; the first access network device and the first core network device are located in the first access network, The second access network device and the second core network device are located in the second access network.

Based on the sixth aspect, in a first possible implementation manner, the first access network device includes a radio resource control device of the first access network, and the second access network device includes the second a base station of the access network and a radio resource control device, where the radio resource control device of the first access network and the base station of the second access network are located in the same multi-standard base station device, where the first access network The radio resource control device and the base station of the second access network are connected by using an interface unit in the multi-standard base station device; the interface unit is between the processing modules corresponding to different standard base stations in the multi-standard base station device a signaling channel; the radio resource control device of the first access network and the radio resource control device of the second access network are connected by using a first interface; the first interface is the first interface Multi-system of wireless resource control equipment An interface between the base station device and the radio resource control device of the second access network; or the first access network device includes the base station and the radio resource control device of the first access network, and the second connection The network access device includes the radio resource control device of the second access network, where the base station of the first access network and the radio resource control device of the second access network are located in the same multi-standard base station device, a base station of the first access network and a radio resource control device of the second access network perform a communication connection by using an interface unit in the multi-standard base station device; a radio resource control device of the first access network and the The radio resource control devices of the second access network are connected by using the first interface; the first interface is a multi-standard base station device where the radio resource control device of the second access network is located, and the first access network The interface between the radio resource control devices.

According to the sixth aspect, or the first possible implementation manner of the sixth aspect, in a second possible implementation, the sending module is further configured to send a handover preparation failure message to the first access network device, The handover preparation failure message includes the user equipment identifier, so that the first access network device sends the handover preparation failure message to the second access network device through the first interface, so that the The second access network device is configured to perform the air interface switching resource configuration parameter prepared by the user equipment corresponding to the user equipment identifier according to the handover preparation failure message.

The seventh aspect provides a switching system of different radio access networks, including: a first access network device, a first core network device, a second access network device, and a second core network device; The network device and the first core network device are located in a first access network; the second access network device and the second core network device are located in a second access network; a radio resource control device of the access network, where the second access network device includes a base station of the second access network and a radio resource control device of the second access network, where the first access network The radio resource control device and the base station of the second access network are located in the same multi-standard base station device, and the radio resource control device of the first access network and the base station of the second access network pass the multi-standard base station device The interface unit is configured to perform a communication connection; the interface unit is a signaling channel between processing modules corresponding to different standard base stations in the multi-standard base station device; the radio resource control device of the first access network and the Second access The RRC device performs a communication connection through the first interface; the first interface is a multi-standard base station device where the radio resource control device of the first access network is located, and a radio resource control device of the second access network The first access network device includes the base station and the radio resource control device of the first access network, and the second access network device includes the radio resource of the second access network. Control device, the first access network The base station and the radio resource control device of the second access network are located in the same multi-standard base station device, and the base station of the first access network and the radio resource control device of the second access network pass the The interface unit in the base station device performs a communication connection; the radio resource control device of the first access network and the radio resource control device of the second access network perform a communication connection through the first interface; The interface is an interface between the multi-standard base station device where the radio resource control device of the second access network is located and the radio resource control device of the first access network; the first access network device is the fourth aspect The first access network device; the second access network device is the second access network device according to the fifth aspect; the first core network device is the first core according to the sixth aspect The second core network device is configured to receive a second handover preparation request message sent by the first core network device from the first access network device, where the second handover preparation request message is sent Sending to the second access network device, so that the second access network device prepares an air interface switching resource for the user equipment corresponding to the user equipment identifier according to the user equipment identifier included in the second handover preparation request message. The second core network device is further configured to send the air interface switching resource configuration parameter prepared by the second access network device to the user equipment corresponding to the user equipment identifier to the first core network. device.

According to the seventh aspect, in a first possible implementation, the second core network device is further configured to send the non-access stratum security parameter allocated by the first core network device to the second access The network device, the non-access stratum security parameter that is allocated by the first core network device, is that the user equipment identifier and the indication information are included in the second handover preparation request message sent by the first access network device, where the user equipment is Identifying the non-access stratum security parameter of the corresponding user equipment. According to the seventh aspect, in a second possible implementation, the second core network device is further configured to: when the handover preparation fails, to the second The access network device sends a handover preparation failure message, where the handover preparation failure message includes a user equipment identifier, and the air interface handover resource configuration parameter prepared by the user equipment corresponding to the user equipment identifier is released.

The eighth aspect, the first access network device is located on the first access network side, and includes: a transmitter, configured to send, by using the first interface, a first handover preparation request message to the second access network device, where The handover preparation request message includes a user equipment identifier, so that the second access network device prepares an air interface handover resource configuration parameter for the user equipment corresponding to the user equipment identifier according to the first handover preparation request message; and sends a second handover to the first core network device. Preparing a request message, where the second handover preparation request message includes a user equipment identifier, so that the first core network device will be the second The handover preparation request message is sent to the second access network device by the second core network device, so that the second access network device configures the air interface switching resource configuration prepared for the user equipment corresponding to the user equipment identifier according to the user equipment identifier. The parameter is sent to the first core network device by using the second core network device;

a receiver, configured to receive a second handover preparation response message sent by the first core network device, where the second handover preparation response message includes an air interface handover resource configuration parameter;

The transmitter is further configured to send a handover message to the user equipment corresponding to the user equipment identifier, where the handover message includes the air interface handover resource configuration parameter, so that the user equipment is used according to the handover message. Switching, by the first access network, to the second access network;

The first access network device and the first core network device are located in the first access network, and the second access network device and the second core network device are located in the second access network.

According to the eighth aspect, in a first possible implementation manner, the first access network device includes a radio resource control device of the first access network, and the second access network device includes the second a base station of the access network and a radio resource control device, where the radio resource control device of the first access network and the base station of the second access network are located in the same multi-standard base station device, where the first access network The radio resource control device and the base station of the second access network are connected by using an interface unit in the multi-standard base station device; the interface unit is between the processing modules corresponding to different standard base stations in the multi-standard base station device a signaling channel; the radio resource control device of the first access network and the radio resource control device of the second access network are connected by using a first interface; the first interface is the first interface An interface between the multi-standard base station device in which the network access control device is located and the radio resource control device in the second access network; or the first access network device includes the a base station of the access network and a radio resource control device, the second access network device comprising a radio resource control device of the second access network, a base station of the first access network, and the second access The radio resource control device of the network is located in the same multi-standard base station device, and the base station of the first access network and the radio resource control device of the second access network communicate through the interface unit in the multi-standard base station device a communication connection between the radio resource control device of the first access network and the radio resource control device of the second access network through a first interface; the first interface is a wireless connection of the second access network An interface between the multi-standard base station device where the resource control device is located and the radio resource control device of the first access network.

Based on the eighth aspect or the first possible implementation of the eighth aspect, in the second possible In an implementation manner, if the first access network is a long-term evolution LTE access network, the first core network device is a mobility management entity MME, and then the second handover preparation response message sent by the first core network device The non-access stratum security parameter is further included, where the non-access stratum security parameter is that the first core network device receives, by the second core network device, the second access network device as the user equipment identifier. After the air interface switching resource configuration parameter prepared by the user equipment, the non-access stratum security parameter allocated by the corresponding user equipment is identified for the user equipment.

According to a second possible implementation manner of the eighth aspect, in a third possible implementation, if the first access network is a long term evolution LTE access network, the first core network device is mobility management. The entity MME, the second handover preparation request message sent by the sender to the first core network device includes the user equipment identifier and the indication information, where the indication information is used to request the first core network device to be The user equipment allocates non-access stratum security parameter information in advance; so that the first core network device allocates a non-access stratum to the user equipment corresponding to the user equipment identifier according to the indication information and the user equipment identifier. a security parameter, and the non-access stratum security parameter is sent to the second access network device by using the second core network device;

The receiver is further configured to receive, by using the first interface, the first handover preparation response message that is sent by the second access network device, where the first handover preparation response message includes the air interface switching resource configuration Parameters and the non-access stratum security parameters;

The transmitter is further configured to send a handover message to the user equipment corresponding to the user equipment identifier, where the handover message includes the air interface handover resource configuration parameter and the non-access layer security parameter, so that the user The device switches from the first access network to the second access network according to the handover message.

In a fourth possible implementation manner, the receiver is further configured to receive the second interface by using the first interface. The switch resource preparation failure message sent by the network access device.

In a fifth possible implementation manner, the receiver is further configured to receive the sending by the first core network device, according to the eighth aspect, or any one of the first to the third possible implementation manners of the eighth aspect, Switching preparation failure message;

The transmitter is further configured to send the handover preparation failure message to the second access network device by using the first interface, so that the second access network device is released as a user equipment identifier according to the handover preparation failure message. The air interface switching resource configuration parameter prepared by the user equipment, the switching criterion The backup failure message includes the user equipment identifier, or

The receiver is further configured to receive, by using the first interface, a handover preparation failure message sent by the second access network device, where the handover preparation failure message is that the second core network device sends a second access when the handover preparation fails. The message sent by the network device.

The ninth aspect, the second access network device is located on the second access network side, and includes: a receiver, configured to receive, by using the first interface, a first handover preparation request message sent by the first access network device, where The first handover preparation request message includes a user equipment identifier;

a processor, configured to prepare an air interface switching resource configuration parameter for the user equipment corresponding to the user equipment identifier according to the first handover preparation request message;

The receiver is further configured to receive a second handover preparation request message sent by the second core network device, where the second handover preparation request message is that the first access network device passes the first core network device a message sent by the second core network device, where the second handover preparation request message includes a user equipment identifier;

a transmitter, configured to send the air interface switching resource configuration parameter prepared by the user equipment corresponding to the user equipment identity to the first core network device by using the second core network device, so that the first core network device Sending a second handover preparation response message to the first access network device, where the second handover preparation response message includes the air interface switching resource prepared by the second access network device for the user equipment corresponding to the user equipment identifier The configuration parameter is configured to enable the first access network device to send a handover message to the user equipment corresponding to the user equipment identifier, where the handover message includes the air interface handover resource configuration parameter, so that the user equipment according to the handover message Switching from the first access network to the second access network;

Based on the ninth aspect, in a first possible implementation manner, the first access network device includes a radio resource control device of the first access network, and the second access network device includes the second a base station of the access network and a radio resource control device, where the radio resource control device of the first access network and the base station of the second access network are located in the same multi-standard base station device, where the first access network The radio resource control device and the base station of the second access network are connected by using an interface unit in the multi-standard base station device; the interface unit is between the processing modules corresponding to different standard base stations in the multi-standard base station device Signaling channel; radio resource control of the first access network The communication device is connected to the radio resource control device of the second access network through a first interface; the first interface is a multi-standard base station device where the radio resource control device of the first access network is located An interface between the radio resource control devices of the second access network; or, the first access network device includes a base station and a radio resource control device of the first access network, where the second access network device includes a radio resource control device of the second access network, where the base station of the first access network and the radio resource control device of the second access network are located in the same multi-standard base station device, the first access The base station of the network and the radio resource control device of the second access network perform communication connection through an interface unit in the multi-standard base station device; the radio resource control device of the first access network and the second access The radio resource control devices of the network are connected by using a first interface; the first interface is a multi-standard base station device where the radio resource control device of the second access network is located, and the first access network The interface between the radio resource control apparatus.

According to the ninth aspect or the first possible implementation manner of the ninth aspect, in the second possible implementation, if the first access network is a long term evolution LTE access network, the first core network device For the mobility management entity MME;

The receiver is further configured to receive a non-access stratum security parameter sent by the second core network device, where the non-access stratum security parameter is that the first core network device is configured according to the first access network The user equipment identifier and the indication information included in the second handover preparation request message sent by the device, the non-access layer security parameter is allocated to the user equipment corresponding to the user equipment identifier, and the non-access layer security parameter is sent to the Said second core network device;

The transmitter is further configured to send, by using the first interface, a first handover preparation response message to the first access network device, where the first handover preparation response message includes the air interface handover resource configuration parameter and the non- The access layer security parameter is configured to enable the first access network device to send a handover message to the user equipment corresponding to the user equipment identifier, where the handover message includes the air interface handover resource configuration parameter and the non-access layer a security parameter, such that the user equipment switches from the first access network to the second access network according to the handover message.

The first or second possible implementation manner of the ninth aspect or the ninth aspect, in a third possible implementation, the transmitter is further configured to use the first interface to the first access network The device sends a handover resource preparation failure message.

According to the ninth aspect or the first or the second possible implementation manner of the ninth aspect, in a fourth possible implementation, the receiver is further configured to receive the first access by using a first interface The handover preparation failure message sent by the network device, where the handover preparation failure message includes the user equipment identifier, and the air interface handover resource configuration parameter prepared by the user equipment corresponding to the user equipment identifier is released, and the handover preparation failure message is Transmitting, by the first core network device, the first access network device to the first access network device; or

And receiving, by the second core network device, a handover preparation failure message, where the handover preparation failure message includes the user equipment identifier, and the air interface switching resource configuration parameter prepared by the user equipment corresponding to the user equipment identifier is released. The handover preparation failure message is sent by the second core network device to the second access network device when the handover preparation fails.

A tenth aspect, a first core network device is located on a first access network side, the first access network is a long term evolution LTE access network, and the first core network device is a mobility management entity MME; The first core network device includes: a receiver, configured to receive a second handover preparation request message sent by the first access network device, where the second handover preparation request message includes indication information and a user equipment identifier; The information is used to request the first core network device to allocate non-access stratum security parameter information to the user equipment corresponding to the user equipment identifier in advance;

a processor, configured to allocate a non-access stratum security parameter to the user equipment corresponding to the user equipment identifier according to the indication information and the user equipment identifier;

a transmitter, configured to send the non-access stratum security parameter to the second access network device by using the second core network device, to enable the second access network device to use the first interface to the first access The network device sends a first handover preparation response message, where the first handover preparation response message includes an air interface handover resource configuration parameter prepared by the second access network device for the user equipment corresponding to the user equipment identifier, and the first The core network device is configured to identify the non-access stratum security parameter of the user equipment corresponding to the user equipment, so that the first access network device sends a handover message to the user equipment, where the handover message includes the air interface. And switching the resource configuration parameter and the non-access stratum security parameter, so that the user equipment switches from the first access network to the second access network according to the handover message;

According to the tenth aspect, in a first possible implementation manner, the first access network device includes a radio resource control device of the first access network, and the second access network device includes the second a base station of the access network and a radio resource control device, and a radio resource control device of the first access network The base station of the second access network is located in the same multi-standard base station device, and the radio resource control device of the first access network and the base station of the second access network pass the interface in the multi-standard base station device The unit performs a communication connection; the interface unit is a signaling channel between processing modules corresponding to different standard base stations in the multi-standard base station device; the radio resource control device of the first access network and the second connection The wireless resource control devices that are connected to the network are connected by using the first interface; the first interface is a radio resource of the multi-standard base station device and the second access network where the radio resource control device of the first access network is located Controlling an interface between the devices; or, the first access network device includes a base station and a radio resource control device of the first access network, where the second access network device includes the second access network device a radio resource control device, where the base station of the first access network and the radio resource control device of the second access network are located in the same multi-standard base station device, and the base station of the first access network The radio resource control device of the second access network performs a communication connection by using an interface unit in the multi-standard base station device; the radio resource control device of the first access network and the radio resource of the second access network The control device is connected to each other through the first interface; the first interface is between the multi-standard base station device where the radio resource control device of the second access network is located and the radio resource control device of the first access network interface.

Based on the tenth aspect or the first possible implementation manner of the tenth aspect, in a second possible implementation manner, the transmitter is further configured to send a handover preparation failure message to the first access network device, The handover preparation failure message includes a user equipment identifier, so that the first access network device sends the handover preparation failure message to the second access network device through the first interface, so that the second The access network device releases the air interface switching resource configuration parameter prepared by the user equipment corresponding to the user equipment identifier according to the handover preparation failure message.

In the foregoing technical solution, the first access network device directly sends a first handover preparation request message to the second access network device by using the first interface, so that the second access network device prepares the air interface handover resource configuration parameter. Therefore, the participation of the core network device is not required in the process of switching the resource preparation, which can greatly reduce the signaling interaction between the access device and the core network device during the preparation process of different access network handovers, thereby reducing the handover delay and improving Switching efficiency. BRIEF DESCRIPTION OF THE 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. The drawings in the above description are some embodiments of the present invention, and those skilled in the art can obtain other drawings based on these drawings without any inventive labor.

FIG. 1 is a schematic flow chart of a method for switching different radio access networks according to an embodiment of the present invention;

2 is a schematic flow chart of a method for switching different radio access networks according to another embodiment of the present invention;

3 is a schematic flow chart of a method for switching different radio access networks according to another embodiment of the present invention;

4 is a schematic flow chart of a method for switching different radio access networks according to another embodiment of the present invention;

FIG. 5 is a schematic flow chart of a method for switching different radio access networks according to another embodiment of the present invention; FIG.

FIG. 6 is a signaling diagram of a method for handover of different radio access networks according to another embodiment of the present invention; FIG. 7 is a signaling diagram of a method for handover of different radio access networks according to another embodiment of the present invention; FIG. 9 is a schematic structural diagram of a first access network device according to another embodiment of the present invention; FIG. 10 is another schematic diagram of a first access network device according to another embodiment of the present invention; FIG. 11 is a schematic structural diagram of a first core network device according to another embodiment of the present invention; FIG. 12-1 is a schematic diagram of a second core network device according to another embodiment of the present invention; Schematic diagram of the switching system of the network access;

12-2 is still another schematic structural diagram of a handover system of different radio access networks according to another embodiment of the present invention;

FIG. 13 is a schematic structural diagram of a first access network device according to another embodiment of the present invention; FIG. 14 is a schematic structural diagram of a second access network device according to another embodiment of the present invention; The schematic diagram of the structure of the first core network device provided by the example. The technical solutions in the embodiments of the present invention are clearly and completely described in the following with reference to the accompanying drawings in the embodiments of the present invention. The embodiments are a part of the embodiments of the invention, and not all of the embodiments. based on All other embodiments obtained by those skilled in the art without creative efforts are within the scope of the present invention.

The technical solution of the present invention can be applied to a 3GPP mobile communication network 3GPP system, where different radio access networks within the 3GPP include, for example, an Evolved Universal Terrestrial Radio Access Network (E-UTRAN). , Universal Mobile Telecommunications System (UMTS) UMTS Terrestrial Radio Access Network (UTRAN), GSM/EDGE Radio Access Network (GERAN) „ specific application to user equipment Switching from the first access network to the second access network.

The first access network and the second access network in different embodiments of the present invention are different radio access networks within the 3GPP communication system. The first access network device and the first core network device are located in the first access network; the second access network device and the second core network device are located in the second access network;

The first access network device includes a radio resource control device of the first access network, and the second access network device includes a base station and a radio resource control device of the second access network, a radio resource control device of the first access network, and a The base stations of the two access networks are located in the same multi-standard base station device, and the radio resource control device of the first access network and the base station of the second access network communicate through the interface unit in the multi-standard base station device; The interface unit in the base station device is a signaling channel between processing modules corresponding to different standard base stations;

The radio resource control device of the first access network and the radio resource control device of the second access network perform a communication connection through the first interface;

The first interface is an interface between the multi-standard base station device where the radio resource control device of the first access network is located and the radio resource control device of the second access network;

Or

The first access network device includes a base station of the first access network and a radio resource control device of the first access network, where the second access network device includes a radio resource control device of the second access network, and the first access network device The radio resource control device of the base station and the second access network are located in the same multi-standard base station device, and the base station of the first access network and the radio resource control device of the second access network communicate through the interface unit in the multi-standard base station device. The interface unit in the multi-standard base station device is a signaling channel between processing modules corresponding to different standard base stations;

Radio resource control device of the first access network and radio resource control device of the second access network Communication connection between the first interface;

The first interface is an interface between the multi-standard base station device where the radio resource control device of the second access network is located and the radio resource control device of the first access network.

For example, when the radio access network is Long Term E volition (LTE), the LTE radio resource control device is an Evolved Node B (eNB); or

When the wireless access network is a wireless local area network (WLAN), the WLAN radio resource control device is an access point (AP); or

When the radio access network is UMTS, the base station of the UMTS is a NodeB, and the radio resource control device of the UMTS is a radio network controller (RNC); the first interface is an interface Iub interface between the NodeB and the RNC; or

When the radio access network is a Global System of Mobile communication (GSM), the base station of the GSM is a BTS base station, and the radio resource control device of the GSM is a BSC; the first interface is an Abis interface between the BTS and the BSC; Or

When the radio access network is Code Division Multiple Access (CDMA), the base station of the CDMA is a BTS base station, and the radio resource control device is a BSC.

The multi-standard base station device includes at least two of the BTS, the NodeB, the eNB, the WLAN AP, and the Worldwide Interoperability for Microwave Access (WIMAX) AP. The core network device includes, for example, a Mobility Management Entity (abbreviated as ΜΜΕ), a GPRS service support node (Serv GPRS SUPPORT NODE, SGSN for short), and the like, where GPRS is a General Packet Radio Service.

It should be noted that, the first access network is a long-term evolution LTE access network, and the second access network is a universal mobile communication system UMTS access network, or:

The first access network is a UMTS access network, and the second access network is a long term evolution LTE access network;

The first interface in this embodiment is an Iub interface.

It is assumed that the first access network is a long term evolution LTE access network, the second access network is a universal mobile communication system UMTS access network, and the user equipment identifier includes a cell radio network temporary identifier (Cell Radio Network Temporary Identifier) , C-RNTI), International Mobile Subscriber Identification Number (IMSI), At least one of a unique identifier ( _e NB UE X2AP ID) in the source evolved base station eNB allocated by the source evolved base station eNB for the user equipment.

It is assumed that the first access network is a universal mobile communication system UMTS access network, the second access network is a long term evolution LTE access network, and the user equipment identifier includes a global terrestrial radio access network (Universal Terrestrial Radio) a UTRAN Radio Network Temporary Identifier (U-RNTI) of the Access Network, UTRAN, and a unique identifier assigned by the handover source radio network controller RNC to the user equipment in the source radio network controller RNC ( At least one of the SRNC Radio Network Temporary Identifier (S-RNTI) and the International Mobile Subscriber Identity (IMSI).

FIG. 1 is a schematic flowchart of a method for switching between different radio access networks according to an embodiment of the present invention. As shown in FIG. 1, the method for switching different radio access networks in this embodiment may include:

The first access network device sends a first handover preparation request message to the second access network device by using the first interface, where the first handover preparation request message includes the user equipment identifier, so that the second access network device is configured according to the second access network device. The first handover preparation request message prepares an air interface switching resource configuration parameter for the user equipment corresponding to the user equipment identifier;

In an optional implementation manner of the present invention, it is assumed that the first access network device includes a radio resource control device of the first access network, and the second access network device includes a base station of the second access network and a radio resource control device. The radio resource control device of the first access network and the base station of the second access network are located in the same multi-standard base station device, and the radio resource control device of the first access network and the base station of the second access network pass the multi-standard base station device. The interface unit is configured to perform a communication connection; the radio resource control device of the first access network and the radio resource control device of the second access network are connected by using the first interface;

The first interface is an interface for communication between the multi-standard base station device where the radio resource control device of the first access network is located and the radio resource control device of the second access network.

In a specific implementation, the radio resource control device of the first access network sends a first handover preparation request message to the base station of the second access network through the interface unit in the multi-standard base station device, and triggers the base station of the second access network. Transmitting, by using the first interface, the first handover preparation request message to the radio resource control device of the second access network, so that the radio resource control device of the second access network is the user equipment corresponding to the user equipment identifier according to the first handover preparation request message Prepare the air interface to switch resource configuration parameters. In an optional implementation manner of the present invention, it is assumed that the first access network device includes a base station and a radio resource control device of the first access network, and the second access network device includes a radio resource control device of the second access network, The base station of the first access network and the radio resource control device of the second access network are located in the same multi-standard base station device, and the base station of the first access network and the radio resource control device of the second access network pass the multi-standard base station device. The interface unit inside performs a communication connection;

In a specific implementation, the radio resource control device of the first access network sends a first handover preparation request message to the base station of the first access network through the first interface, to trigger the base station of the first access network to pass the multi-standard base station. The interface unit in the device sends a first handover preparation request message to the radio resource control device of the second access network, so that the radio resource control device of the second access network selects the user corresponding to the user equipment identifier according to the first handover preparation request message. The device prepares the air interface to switch resource configuration parameters.

In a different Inter-RAT Handover procedure specified in the existing 3GPP standard, when the first access network device initiates a handover event from the first access network to the second access network, The first access network device sends a first handover preparation request message to the first core network device, where the first core network device sends a first handover preparation request message to the second core network device, and the second core network device prepares the first handover The request message is sent to the second access network device, and the second access network starts to prepare the air interface switching resource configuration parameter after receiving the first handover preparation request message.

In the present invention, the first access network device directly sends a first handover preparation request message to the second access network device through the first interface, so that the second access network device prepares the air interface handover resource configuration parameter. Therefore, in the resource preparation process of the handover target cell, the participation of the core network device is not required, and the signaling interaction between the access device and the core network device in the preparation process of the different access network handovers can be greatly reduced, thereby reducing the handover. Delay, improve switching efficiency.

102. Send a second handover preparation request message to the first core network device, where the second handover preparation request message includes the user equipment identifier, so that the first core network device sends the second handover preparation request message to the second core network device. The second access network device, so that the second access network device prepares the user equipment corresponding to the user equipment identifier in step 101 according to the user equipment identifier. The air interface switching resource configuration parameter is sent to the first core network device by using the second core network device. Optionally, step 101 and step 102 can be performed in parallel, that is, in order to reduce the handover delay and improve the switching efficiency, the first access network device sends While the second access network device sends the first handover preparation request message, the first access network device sends a second handover preparation request message to the first core network device;

Currently, the first access network device sends the first access network device to the second access network device through the first core network device and the second core network device during the different Inter-RAT Handover procedures specified in the 3GPP standard. And after the second access network device prepares the air interface switching resource configuration parameter, the first access network device sends a second handover preparation request message to the first core network device, so that the first core network device passes the second The core network device acquires the air interface switching resource configuration parameter prepared by the second access network device.

In the present invention, the first access network device sends the first handover preparation request message to the second access network device through the first interface, and the first access network device sends the second handover preparation request to the first core network device. The first core network device sends the second handover preparation request message to the second access network device by using the second core network device, so that the second access network device passes the prepared air interface switching resource configuration parameter through the first The second core network device is sent to the first core network device. Therefore, the time for transmitting the air interface switching resource configuration parameter is advanced, thereby reducing the handover delay and improving the switching efficiency.

It should be noted that, the first access network is a long-term evolution LTE access network, and the first core network device is a mobility management entity MME; the first core network device MME receives the second access network device according to the user equipment identifier. After the air interface switching resource configuration parameter is prepared for the user equipment corresponding to the user equipment, the first core network device MME sends the non-access stratum security parameter allocated by the user equipment corresponding to the user equipment identifier, and sends the non-access stratum security parameter to the first access network device. And a second handover request response message, where the second handover request response message includes a non-access stratum security parameter allocated by the first core network device MME and an air interface handover resource configuration parameter prepared by the second access network device.

103. Receive a second handover preparation response message sent by the first core network device, where the second handover preparation response message includes an air interface handover resource configuration parameter.

It should be noted that, the first access network is a long-term evolution LTE access network, and the first core network device is a mobility management entity MME. At this time, the first access network device receives the second sent by the first core network device. The handover preparation response message further includes the non-distribution of the first core network device MME. Access layer security parameters.

104. Send a handover message to the user equipment, where the handover message includes an air interface handover resource configuration parameter, so that the user equipment switches from the first access network to the second access network according to the handover message. The network is a long-term evolution LTE access network, and the first core network device is a mobility management entity MME. The handover message sent by the first access network device to the user equipment further includes the non-access layer security allocated by the first core network device MME. parameter.

In an optional implementation manner of the present invention, when the second access network device fails to prepare the air interface switching resource configuration parameter, the device may send a handover resource preparation failure message to the first access network device by using the first interface, so that the An access network device can execute an internal algorithm without waiting for a handover resource preparation failure message forwarded by the first core network device.

In an optional implementation manner of the present invention, when the first core network device fails in the handover preparation process, the handover preparation failure message may be sent to the first access network device, where the handover preparation failure message includes the user equipment identifier. The first access network device sends the handover preparation failure message to the second access network device through the first interface, so that the second access network device is translated into the air interface switching resource configuration prepared by the user equipment corresponding to the user equipment identifier. Parameter

In an optional implementation manner of the present invention, when the second core network device fails during the handover preparation process, the second core network device may send a handover preparation failure message to the second access network device, where the handover preparation failure message is received. The user equipment identifier is included, so that the second access network device releases the air interface switching resource configuration parameter prepared by the user equipment corresponding to the user equipment identifier, and sends a handover preparation failure message to the first access network device by using the first interface, The first access network device can perform an internal algorithm, and does not need to wait for a handover resource preparation failure message forwarded by the first core network device.

The first access network device in the embodiment of the present invention directly sends a first handover preparation request message to the second access network device through the first interface, so that the second access network device prepares the air interface handover resource configuration parameter. Therefore, the participation of the core network device is not required in the process of switching the resource preparation, and the signaling interaction between the access device and the core network device in the preparation process of the different access network switching can be greatly reduced, thereby reducing the handover delay and improving Switching efficiency.

2 is a schematic flowchart of a method for handover of different radio access networks according to another embodiment of the present invention. If the first access network is a long-term evolution LTE access network, the first access network device is the first access network. Radio resource control device (enhanced base station eNB), the first core network device is a mobility tube As shown in FIG. 2, the method for switching different radio access networks in this embodiment may include:

The first access network device sends a first handover preparation request message to the second access network device by using the first interface, where the first handover preparation request message includes the user equipment identifier, so that the second access network device is configured according to the first The handover preparation request message prepares an air interface switching resource configuration parameter for the user equipment corresponding to the user equipment identifier;

For specific implementation, reference may be made to the related content in step 101 in the embodiment shown in FIG. 1.

202. Send a second handover preparation request message to the first core network device, where the second handover preparation request message includes the user equipment identifier and the indication information, so that the first core network device identifies the user equipment according to the indication information and the user equipment identifier. The corresponding user equipment allocates the non-access stratum security parameter, and sends the non-access stratum security parameter to the second access network device through the second core network device;

The indication information is used to request the first core network to allocate non-access stratum security parameter information to the user equipment corresponding to the user equipment identifier in advance, or to notify the resource preparation process of the first core network target cell to execute in advance.

203. Receive, by using the first interface, a first handover preparation response message that is sent by the second access network device, where the first handover preparation response message includes an air interface handover resource configuration parameter and a non-access layer security parameter.

Assuming that the second access network device includes the radio resource control device of the second access network and the base station of the second access network, the radio resource control device of the second access network receives the non-access sent by the second core network device. After the layer security parameter, the non-access stratum security parameter is sent to the base station of the second access network through the first interface, and the base station that triggers the second access network passes the non-access stratum security parameter through the interface unit in the multi-standard base station device. Send to the first access network device (eNB).

204. Send a handover message to the user equipment, where the handover message includes an air interface handover resource configuration parameter and a non-access layer security parameter, so that the user equipment switches from the first access network to the second access network according to the handover message.

In an optional implementation manner of the present invention, when the second access network device fails to prepare the air interface switching resource configuration parameter, the device may send a handover resource preparation failure message to the first access network device by using the first interface, so that the An access network device can execute an internal algorithm without waiting for a handover resource preparation failure message forwarded by the first core network device. In an optional implementation manner of the present invention, when the first core network device fails in the handover preparation process, the handover preparation failure message may be sent to the first access network device, where the handover preparation failure message includes the user equipment identifier. The first access network device sends the handover preparation failure message to the second access network device through the first interface, so that the second access network device is translated into the air interface switching resource configuration prepared by the user equipment corresponding to the user equipment identifier. parameter;

Further, the first access network device in the embodiment of the present invention sends the first handover preparation request message to the second access network device by using the first interface, and the first access network device sends the indication to the first core network device. The second handover preparation request message of the information is used to enable the first core network device to allocate the non-access stratum security parameter to the user equipment in advance, so that the handover delay can be reduced, and the handover efficiency is improved.

FIG. 3 is a schematic flowchart of a method for switching different radio access networks according to another embodiment of the present invention; as shown in FIG. 3, the method includes:

301. The second access network device receives, by using the first interface, a first handover preparation request message sent by the first access network device, where the first handover preparation request message includes a user equipment identifier.

For a specific implementation, reference may be made to the related description in step 101 of the embodiment shown in FIG. 1, and details are not described herein again. 302. Prepare, according to the first handover preparation request message, a resource allocation parameter configured by the user equipment corresponding to the user equipment identifier.

303. Receive a second handover preparation request message sent by the second core network device, where the second handover is performed. The preparation request message is a message that the first access network device sends to the second core network device by using the first core network device, where the second handover preparation request message includes the user equipment identifier;

The air interface switching resource configuration parameter prepared by the user equipment corresponding to the user equipment identifier is sent to the first core network device by the second core network device, so that the first core network device sends the second switching to the first access network device. Preparing a response message, where the second handover preparation response message includes an air interface handover resource configuration parameter prepared by the second access network device according to the first handover preparation request message for the user equipment corresponding to the user equipment identifier, so that the first access network device The user equipment sends a handover message, where the handover message includes an air interface handover resource configuration parameter, so that the user equipment switches from the first access network to the second access network according to the handover message;

It should be noted that, the first access network is a long-term evolution LTE access network, and the first core network device is a mobility management entity MME; the first core network device MME receives the second access network device according to the user equipment identifier. After the air interface switching resource configuration parameter is prepared for the user equipment corresponding to the user equipment, the first core network device MME is the non-access stratum security parameter allocated by the user equipment corresponding to the user equipment identifier, and is sent to the first access network device. Sending a second handover request response message, where the second handover request response message includes a non-access stratum security parameter allocated by the first core network device MME and an air interface handover resource configuration parameter prepared by the second access network device. The first access network device sends a handover message to the user equipment, where the handover message includes the non-access layer security parameter allocated by the first core network device MME and the air interface switching resource configuration parameter prepared by the second access network device, so that The user equipment switches from the first access network to the second access network according to the handover message;

In an optional implementation manner of the present invention, when the second core network device is in the handover preparation process The second core network device may send a handover preparation failure message to the second access network device, where the handover preparation failure message includes the user equipment identifier, so that the second access network device is released as the user equipment identifier corresponding to the user equipment identifier. The air interface of the user equipment is configured to switch the resource configuration parameter, and sends a handover preparation failure message to the first access network device through the first interface, so that the first access network device can execute the internal algorithm, and does not need to wait for the first core network device to forward. The switch resource preparation failure message.

FIG. 4 is a schematic flowchart of a method for handover of different radio access networks according to another embodiment of the present invention. If the first access network is a long-term evolution LTE access network, the first access network device is the first access network. The radio resource control device (enhanced base station eNB), the first core network device is a mobility management entity MME; as shown in FIG. 4, the method for switching different radio access networks in this embodiment may include:

401. The second access network device receives, by using the first interface, a first handover preparation request message sent by the first access network device, where the first handover preparation request message includes a user equipment identifier.

For a specific implementation, reference may be made to the related description in step 101 of the embodiment shown in FIG. 1, and details are not described herein again. 402. The user equipment corresponding to the user equipment identifier is prepared according to the first handover preparation request message, and the air interface switching resource configuration parameter is prepared.

403. Receive a non-access stratum security parameter sent by the second core network device, where the non-access stratum security parameter is that the first core network device includes the user equipment identifier and the second handover preparation request message sent by the first access network device. Instructing information, assigning a non-access stratum security parameter to the user equipment corresponding to the user equipment identifier, and sending the non-access stratum security parameter to the second core network device;

404. The first handover preparation response message is sent to the first access network device by using the first interface, where the first handover preparation response message includes an air interface switching resource configuration parameter and a non-access layer security parameter. The first access network device sends a handover message to the user equipment, where the handover message includes an air interface handover resource configuration parameter and a non-access layer security parameter, so that the user equipment switches from the first access network to the first according to the handover message. Two access networks.

FIG. 5 is a schematic flowchart of a method for switching different radio access networks according to another embodiment of the present invention; Assuming that the first access network is a long term evolution LTE access network, the first access network device is a radio resource control device (enhanced base station eNB) of the first access network, and the first core network device is a mobility management entity. MME, as shown in FIG. 5, the method for switching different radio access networks in this embodiment may include:

501. The first core network device receives a second handover preparation request message sent by the first access network device.

The second handover preparation request message includes indication information and a user equipment identifier.

502. Allocate a non-access stratum security parameter to the user equipment corresponding to the user equipment identifier according to the indication information and the user equipment identifier.

503. Send the non-access stratum security parameter to the second access network device by using the second core network device, so that the second access network device sends the first handover preparation response to the first access network device by using the first interface. The message that the first handover preparation response message includes the air interface switching resource configuration parameter prepared by the second access network device for the user equipment corresponding to the user equipment identifier, and the non-access information allocated by the first core network device for the user equipment corresponding to the user equipment identifier. The layer security parameter is configured to enable the first access network device to send a handover message to the user equipment, where the handover message includes an air interface handover resource configuration parameter and a non-access layer security parameter, so that the user equipment switches from the first access network according to the handover message. Go to the second access network.

The air interface switching resource configuration parameter prepared by the second access network device for the user equipment corresponding to the user equipment identifier is that the second access network device receives the first handover preparation request message sent by the first access network device by using the first interface. Then, the air interface switching resource configuration parameter prepared for the user setting according to the user equipment identifier included in the first handover preparation request message is used.

In an optional implementation manner of the present invention, when the first core network device fails to perform the handover preparation, the first core network device may send a handover preparation failure message to the first access network device, where the handover preparation failure message is included. And the user equipment identifier, so that the first access network device sends the handover preparation failure message to the second access network device by using the first interface, so that the second access network device is released as the user equipment identifier according to the handover preparation failure message. The air interface switching resource configuration parameters prepared by the user equipment. The first access network device in the embodiment of the present invention directly sends a first handover preparation request message to the second access network device by using the first interface, so that the second access network device prepares the air interface handover resource configuration parameter. Therefore, the participation of the core network device is not required in the process of switching the resource preparation, and the signaling interaction between the access device and the core network device in the preparation process of the different access network switching can be greatly reduced, thereby reducing the handover delay and improving Switching efficiency.

FIG. 6 is a signaling diagram of a method for handover of different radio access networks according to another embodiment of the present invention; as shown in FIG. 6, assuming that the first access network is LTE, radio resource control of the first access network device The device is an eNB, and the first core network device is an MME. If the second access network is a UMTS, the first access network device includes a radio resource control device RNC and a base station device NodeB, and the second core network device is an SGSN. The eNB and the NodeB are located on the same multi-standard base station device, and the eNB and the NodeB can share a common radio frequency unit. The eNB and the NodeB can use different baseband processing units or share the same baseband processing unit, that is, the eNB and the NodeB can pass the multi-standard base station. Communication between control information or data is performed through channels between internal bus units or through channels between baseband processing units.

The specific method for switching the different radio access networks in this embodiment, that is, the specific process for the user equipment to switch from the LTE source cell to the UMTS target cell includes:

601. The eNB sends a first handover preparation request message to the NodeB by using an interface unit inside the multi-standard base station device.

When the eNB decides to switch the user equipment from the current serving cell (ie, the handover source cell) of the LTE to the target cell of the UMTS, the eNB can learn the UMTS target cell by configuring the network topology neighboring information of the eNB through the network management platform. The eNB corresponding to the eNB and the LTE source cell is located on the same multi-mode base station. At this time, the eNB sends a first handover preparation request message to the NodeB through the interface unit inside the multi-standard base station device, where the multi-standard base station device internal The interface unit is a communication channel for controlling signaling or data between the internal eNB and the NodeB of the multi-standard base station device; The first handover preparation request message includes a user equipment identifier, where the user equipment identifier includes a cell radio network temporary identifier C-RNTI, which is used by the handover source eNB for the user equipment, to uniquely identify the user equipment in the cell range, or international The mobile subscriber identity IMSI, or the unique identity (eNB UE X2AP ID) in the source eNB assigned by the source eNB to the user equipment. Further, in the first handover preparation message, the cell identification information of the LTE source cell may also be carried.

Further, the first handover preparation request message may further include a radio access bearer (RAB) parameter that the user equipment is carrying before the handover, and the RAB parameter may be in the form of an evolution of the 4G core network of the LTE system. The Quality of Service (Qos) parameter of the Evolved Packet Core (EPC) may also be a Qos parameter of the UMTS system that is converted by the eNB or the NodeB. Further, the first handover preparation request message may further include User device capability information.

602. The Node B sends a first handover preparation request message to the RNC by using the first interface.

In this embodiment, the eNB and the Node B are located in the same multi-standard base station device, and the first interface is an Iub interface between the NodeB and the RNC; specifically, the Node B can pass the base station application protocol of the Iub interface (Node B Application Part) NBAP) sends a first handover preparation request message to the RNC, where the NBAP is used for a protocol for signaling transmission between the RNC and the NodeB.

603. The RNC prepares an air interface switching resource configuration parameter for the user equipment according to the first handover preparation request message.

Specifically, after receiving the first handover preparation request message sent by the Node B, the RNC prepares to trigger the establishment of the radio link of the Iub interface for the user equipment corresponding to the user equipment identifier according to the user equipment identifier included in the first handover preparation request message. The request process requests the NodeB to perform necessary resource preparation for the user equipment, such as power resources, code resources, etc., and after the NodeB returns a radio link setup response, the RNC configures and constructs the user equipment according to the prepared radio resources. The target cell provides the radio resource parameter information required for the service and connection of the user equipment, that is, the air interface switching resource configuration parameter.

604. The eNB sends a second handover preparation request message to the MME.

Step 601 and step 604 may be performed in parallel, that is, while performing radio resource preparation of the target cell in steps 601-603, the eNB sends a second handover preparation request to the MME. The second handover preparation request message includes a user equipment identifier.

The user equipment identifier may be placed in the outer layer of the "source RNC to target RNC transparent container" cell in the second handover preparation request message in the message structure of the second handover preparation request message, where the source RNC to the target RNC transparent container "It is an existing rule in the source system adaptation system. Since this embodiment is to handover to UTMS, the eNB will construct such a "source RNC" for the target cell. The user equipment identifier may be allocated by the handover source eNB for the user equipment, and the cell radio network temporary identifier C-RNTI, or the international mobile subscriber identity IMSI, or the handover source eNB is the user that uniquely identifies the user equipment in the cell range. A unique identifier (eNB UE X2AP ID) assigned by the device in the source eNB.

Further, in the second handover preparation request, the cell identification information of the LTE source cell may also be carried.

The second handover preparation request message may specifically be a Handover required message.

605. The MME sends the second handover preparation request message to the SGSN by using a forward relocation request message.

The forward relocation request message may specifically be a Forward Relocation request message.

606. The SGSN sends the second handover preparation request message to the RNC by using a redirect request message.

The redirect request message may specifically be a relocation request message.

607. The RNC sends the air interface switching resource configuration parameter that has been prepared by the user equipment to the user equipment.

SGSN.

Specifically, after receiving the second handover preparation request message sent by the SGSN, the RNC determines that the air interface switching resource configuration parameter prepared by the user equipment in the handover target cell is completed in step 603, and then the air interface switching resource configuration parameter is redirected. A request response (ACK) message is sent to the SGSN.

608. The SGSN sends the air interface switching resource configuration parameter prepared by the RNC to the user equipment, and sends the message to the MME by using a forward relocation response message.

The forward relocation response message is specifically a Forward Relocation response message.

609. After receiving the forward relocation response message that is sent by the SGSN and including the air interface switching resource configuration parameter, the MME sends a second handover preparation response message to the eNB. The second handover preparation response message includes an air interface handover resource configuration parameter prepared by the RNC for the user equipment, and a non-access layer security parameter allocated by the MME for the user equipment.

The second handover preparation response message may specifically be a handover command message (Handover command).

Then, the eNB sends a handover message to the user equipment, where the handover message includes a non-access stratum security parameter and an air interface handover resource configuration parameter.

Correspondingly, after receiving the handover message, the user equipment completes the process of handover from the LTE source cell to the UMTS target cell, and sends a handover completion response to the RNC, indicating that the access network handover is completed.

The first access network device in the embodiment of the present invention directly sends a first handover preparation request message to the second access network device through the first interface, so that the second access network device prepares the air interface handover resource configuration parameter. Therefore, in the air interface resource preparation process of the target cell, there is no need to wait for the transmission of the core network device, which can greatly reduce the handover preparation caused by the signaling interaction between the access device and the core network device in the preparation process of the different access network handover. Delay, improve switching efficiency.

FIG. 7 is a signaling diagram of a method for handover of different radio access networks according to another embodiment of the present invention; as shown in FIG. 7, assuming that the first access network is LTE, radio resource control of the first access network device The device is an eNB, and the first core network device is an MME. If the second access network is a UMTS, the first access network device includes a radio resource control device RNC and a base station NodeB, and the second core network device is an SGSN. The eNB and the NodeB are located on the same multi-standard base station device, and the eNB and the NodeB can share a common radio frequency unit. The eNB and the NodeB can use different baseband processing units or share the same baseband processing unit, that is, the eNB and the NodeB can pass the multi-standard base station. Communication between control information or data is performed through channels between interface units inside the device or through channels between baseband processing units.

701. The eNB sends a first handover preparation request message to the NodeB by using an interface unit inside the multi-standard base station device.

When the eNB decides to switch the user equipment from the current serving cell (ie, the handover source cell) of the LTE to the target cell of the UMTS, the eNB can learn the UMTS target cell by configuring the network topology neighboring information of the eNB through the network management platform. The eNB corresponding to the Node B and the LTE source cell are located on the same multimode base station, and at this time, the eNB passes the multi-standard base station device. The internal interface unit sends a first handover preparation request message to the NodeB, where the interface unit inside the multi-standard base station device is a communication channel for control signaling or data between the internal eNB and the NodeB of the multi-standard base station device;

The first handover preparation request message includes a user equipment identifier, where the user equipment identifier includes a C-RNTI of the user equipment in the LTE cell. Further, in the first handover preparation message, the cell identification information of the LTE source cell may also be carried.

Further, the first handover preparation request message may further include an RAB parameter of the service that the user equipment is carrying before the handover, where the RAB parameter may be in the form of an EPC Qos parameter in the LTE system, or may be converted by the eNB or the NodeB. The QoS parameter of the UMTS system; further, the first handover preparation request message may further include capability information of the user equipment.

702. The Node B sends a first handover preparation request message to the RNC by using the first interface.

703. The RNC prepares an air interface switching resource configuration parameter for the user equipment according to the first handover preparation request message.

704. The eNB sends a second handover preparation request message to the MME.

Step 701 and step 704 may be performed in parallel, that is, the eNB sends a second handover preparation request message to the MME, and the second handover preparation request message includes the user equipment identifier, while the radio resource preparation of the target cell in the step 701-703 is performed. . Further, the second handover preparation request message further carries indication information, where the indication information is used to notify the MME that the target is being performed at this time. The resource preparation process of the cell, that is, the indication information is used to notify the resource preparation process of the target cell of the first core network to be performed in advance, or the indication information is used to request the first core network to allocate non-access layer security for the user equipment identifier. Parameter information. The second handover preparation request message may specifically be a Handover required message. The user equipment identifier may be any one of the following identifiers: a cell radio network temporary identifier C-RNTI, an international mobile subscriber identity IMSI, or a unique identifier in the source eNB allocated by the handover source eNB for the user equipment (eNB UE X2AP) ID).

705. The MME allocates a non-access stratum security parameter of the user equipment to the user equipment corresponding to the user equipment identifier according to the second handover preparation request message.

Specifically, after receiving the second handover preparation request message that includes the indication information and the user equipment identifier, the MME allocates the non-access stratum security parameter of the user equipment to the user equipment corresponding to the user equipment identifier.

706. The MME sends the non-access stratum security parameter of the user equipment to the SGSN by using a forward relocation request message.

707. The SGSN sends the non-access stratum security parameter of the user equipment to the RNC in a redirect request message.

708. The RNC sends a first handover preparation response message to the NodeB by using the first interface.

Specifically, the RNC receives the relocation request message sent by the SGSN and the non-access stratum security parameter of the user equipment included in the RNC, and determines that the step 703 has completed the air interface switch prepared by the user equipment in the handover target cell. The resource configuration parameter, the air interface switching resource configuration parameter configured in step 703 and the non-access stratum security parameter of the user equipment sent by the SGSN are encapsulated in the first handover preparation response message, and sent to the Node through the first interface (lub interface). B.

709. The NodeB sends the first handover preparation response message to the eNB through an interface unit inside the multi-standard base station device.

Thereafter, the eNB sends a handover message to the user equipment. The handover message includes a non-access layer security parameter and an air interface switching resource configuration parameter.

The first access network device in the embodiment of the present invention directly sends a first handover preparation request message to the second access network device by using the first interface, so that the second access network device prepares the air interface switching resource allocation. Set the parameters. Therefore, in the empty resource preparation process of the target cell, there is no need to wait for the transmission of the core network device, which can greatly reduce the handover preparation caused by the signaling interaction between the access device and the core network device in the preparation process of the different access network handover. Delay, improve switching efficiency.

Further, the first access network device in the embodiment of the present invention sends the second handover preparation request message to the second access network device by using the first interface, and the first access network device sends the second information to the first core network device. Switching the preparation request message; causing the first core network device to allocate non-access stratum security parameters. Therefore, the non-access stratum security parameters are allocated in advance by the first core network device, thereby reducing the handover delay and improving the handover efficiency.

FIG. 8 is a signaling diagram of a method for handover of different radio access networks according to another embodiment of the present invention; assuming that the first access network is UMTS, the first access network device includes a radio resource control device RNC and a base station NodeB, The first core network device is an SGSN, and the second access network is an eNB, and the first access network radio resource control device is an eNB, and the second core network device is an MME, where the eNB and the NodeB are located in the same multi-standard base station device. The eNB and the NodeB may share a common radio frequency unit, and the eNB and the NodeB may use different baseband processing units or share the same baseband processing unit, that is, the eNB and the NodeB may pass through an interface unit (ie, control signaling or data) inside the multi-standard base station device. Communication channel), communication of control information or data.

The specific method for switching the different radio access networks in this embodiment, that is, the specific process for the user equipment to switch from the UMTS source cell to the LTE target cell is as shown in FIG. 8 , and includes:

801. The RNC sends a first handover preparation request message to the Node B by using the first interface. In this embodiment, it is assumed that the eNB and the Node B are located in the same multi-standard base station device.

The RNC decides to switch the user equipment from the current cell (source cell) of the UMTS to the target cell of the LTE. The RNC can configure the network topology neighboring information of the eNB according to the network management platform of the operator, and learn the Node B corresponding to the UMTS source cell. The eNB corresponding to the LTE target cell is located on the same multi-standard base station device. At this time, the RNC sends a first handover preparation request message to the Node B through the first interface. Specifically, the first interface is an Iub interface, and the RNC passes the base station application protocol. The Node B Application Part (NBAP) sends a first handover preparation request message to the NodeB, where the NBAP is used for a protocol for signaling transmission between the RNC and the NodeB.

802. The Node B sends a first switch preparation request message to the eNB by using an interface unit inside the multi-standard base station device.

After receiving the first handover preparation request message through the first interface, the Node B can pass the multi-standard system. a control signaling or data communication channel between the internal eNB of the base station and the NodeB, forwarding the content of the first handover preparation request message to the eNB;

The first handover preparation request message includes a user equipment identifier, and the user equipment identifier may be a UTRAN Radio Network Temporary Identifier (U-RNTI) or a cell radio network temporary identifier of the user equipment in the UMTS cell. The CellRadioNetworkTemporaryldentifier (C-RNTI for short) or the S-RNTI SRNC Radio Network Temporary Identifier assigned by the source RNC to the UE, or the International Mobile Subscriber Identity (IMSSI). Further, in the first handover preparation message, the cell identification information of the UMTS source cell may also be carried.

Further, the first handover preparation request message may further include an RAB parameter of the service that the user equipment is carrying before the handover, where the RAB parameter may be in the form of an EPC Qos parameter of the LTE system, or may be converted by the RNC or the NodeB. The Qos parameter in the UMTS system. Further, the first handover preparation request message may further include capability information of the user equipment.

803. The eNB prepares an air interface switching resource configuration parameter of the user equipment according to the first handover preparation request message.

Specifically, after receiving the first handover preparation request message, the eNB allocates, according to the user equipment identifier included in the first handover preparation request message, the user equipment corresponding to the user equipment identifier, after the user equipment is switched to the LTE target cell, the target The cell provides the radio resource parameter information required for the service and connection of the user equipment, that is, the air interface switching resource configuration parameter.

804. The RNC sends a second handover preparation request message to the SGSN.

Step 801 and step 804 can be performed in parallel, that is, while performing step 801, the RNC can send a second handover preparation request message to the SGSN by using a Relocation Required message. The second handover preparation request message includes a user equipment identifier.

The user equipment identifier may be placed in the outer layer of the "source eNB to target eNB transparent container" cell in the second handover preparation request message in the message structure of the second handover preparation request message, and the user equipment identifier may be the user equipment in the UMTS The UTRAN Radio Network Temporary Identifier (U-RNTI) or the Cell Radio Network Temporary Identifier (C-RNTI) or the handover source RNC in the cell is allocated to the UE in the source RNC. Unique identifier (S-RNTI SRNC Radio Network Temporary Identifier ) , or International Mobile Subscriber Identification Number ( IMSI).

Further, in the second handover preparation request, the cell identification information of the UMTS source cell may also be carried.

805. The SGSN sends the second handover preparation request message to the forward relocation request message.

MME.

806. The MME sends a third handover preparation request message to the eNB.

Specifically, after receiving the second handover preparation request message sent by the SGSN, the MME may allocate, for example, the non-access layer secure transparent container and the access layer key information of the user equipment, and then the MME may And transmitting, by the third handover preparation request message, the second handover preparation request message, the non-access layer security transparent container of the user equipment, and the access layer key information to the eNB. The third handover preparation request message is specifically a handover request message.

The content of the third handover preparation request message includes a user equipment identifier, and the user equipment identifier may be a U-RNTI or a C-RNTI. Further, the third handover preparation request message content may further include cell identification information of the UMTS source cell.

807. The eNB sends a first handover preparation response message to the NodeB by using an interface unit inside the multi-standard base station device.

The first handover preparation response message includes an air interface switching resource configuration parameter prepared by the eNB for the user equipment.

Specifically, after receiving the third handover preparation request message from the MME, the eNB determines that the air interface switching resource configuration parameter required for the handover has been completed in step 802, and sends the first handover preparation response to the NodeB through the interface unit inside the multi-standard base station device. Message. The first handover preparation response message includes an air interface handover resource configuration parameter prepared by the eNB for the user equipment.

808. The NodeB sends a first handover preparation response message to the RNC by using the first interface.

The RNC then sends a handover message to the user equipment. The switching message includes an air interface switching resource configuration parameter prepared by the eNB for the user equipment.

Correspondingly, after receiving the handover message, the user equipment switches from UMTS to LTE, and sends a handover completion response to the eNB, indicating that the access network handover is completed.

The first access network device in the embodiment of the present invention directly sends a first handover preparation request message to the second access network device by using the first interface, so that the second access network device prepares the air interface switching resource allocation. Set the parameters. Therefore, in the air interface switching resource preparation process of the target cell, there is no need to wait for the forwarding handover preparation request message of the core network device, which can greatly reduce the signaling interaction between the access device and the core network device in the preparation process of different access network handovers. The handover preparation delay is delayed, thereby reducing the handover preparation delay and improving the handover efficiency.

FIG. 9 is a schematic structural diagram of a first access network device according to another embodiment of the present invention; and is located in a scenario where a user equipment is switched from a first access network to a second access network, where The first access network and the second access network are different types of radio access networks, as shown in FIG. 9, including:

The first sending module 91 is configured to send, by using the first interface, a first handover preparation request message to the second access network device, where the first handover preparation request message includes a user equipment identifier, so that the second access network The device prepares an air interface switching resource configuration parameter for the user equipment corresponding to the user equipment identifier according to the first handover preparation request message;

a second sending module 92, configured to send a second handover preparation request message to the first core network device, where the second handover preparation request message includes the user equipment identifier, so that the first core network device The second handover preparation request message is sent to the second access network device by the second core network device, so that the second access network device identifies the user equipment corresponding to the user equipment according to the user equipment identifier. The prepared air interface switching resource configuration parameter is sent to the first core network device by using the second core network device;

The first receiving module 93 is configured to receive a second handover preparation response message sent by the first core network device, where the second handover preparation response message includes an air interface switching resource configuration parameter, and a third sending module 94, configured to The first receiving module 93 receives the second handover preparation response message sent by the first core network device, and sends a handover message to the user equipment, where the handover message includes the air interface switching resource configuration parameter, so that the The user equipment switches from the first access network to the second access network according to the handover message;

The first access network device and the first core network device are located in the first access network, and the second access network device and the second core network device are located in a second access network.

For example, the first access network device includes a radio resource control device of the first access network, and the second access network device includes a base station and a radio resource control device of the second access network, The radio resource control device of the first access network and the base station of the second access network are located in the same multi-standard base station device, and the radio resource control device of the first access network and the second The base station of the access network performs a communication connection through an interface unit in the multi-standard base station device; the interface unit is a signaling channel between processing modules corresponding to different standard base stations in the multi-standard base station device;

Or

The first access network device includes a base station and a radio resource control device of the first access network, and the second access network device includes a radio resource control device of the second access network, where the first The base station of the access network and the radio resource control device of the second access network are located in the same multi-standard base station device, and the base station of the first access network and the radio resource control device of the second access network pass The interface unit in the multi-standard base station device performs a communication connection;

For example, if the first access network is a long term evolution LTE access network, the first core network device is a mobility management entity MME;

The second handover preparation response message sent by the first core network device further includes a non-access stratum security parameter, where the non-access stratum security parameter is received by the first core network device by using the second core network device. And after the second access network device is configured as the air interface switching resource configuration parameter prepared by the user equipment corresponding to the user equipment identifier, the non-access stratum security parameter allocated by the user equipment corresponding to the user equipment identifier.

For example, if the first access network is a long term evolution LTE access network, and the first core network device is a mobility management entity MME, the second sending module 92 is to the first core network device. The second handover preparation request message that is sent includes the user equipment identifier and the indication information. The indication information is used to request the first core network device to allocate non-access layer security parameter information to the user equipment corresponding to the user equipment identifier in advance. And causing the first core network device to identify the user equipment corresponding to the user equipment according to the indication information and the user equipment identifier. The non-access stratum security parameter is configured, and the non-access stratum security parameter is sent to the second access network device by using the second core network device;

The first access network device further includes:

The second receiving module 95 is configured to receive, by using the first interface, a first handover preparation response message that is sent by the second access network device, where the first handover preparation response message includes an air interface switching resource configuration parameter and a non-access stratum Safety parameter

The third sending module 94 is configured to send a handover message to the user equipment, and switch the message, on the basis that the second receiving module 95 receives the first handover preparation response message sent by the second access network device. The air interface switching resource configuration parameter and the non-access layer security parameter are included, so that the user equipment switches from the first access network to the second access network according to the handover message;

For example, the second receiving module 95 is further configured to receive, by using the first interface, a handover resource preparation failure message sent by the second access network device.

For example, the first receiving module 93 is further configured to receive a handover preparation failure message sent by the first core network device, and send the handover preparation failure message to the second access network by using a first interface. And the device, so that the second access network device, according to the handover preparation failure message, releases the air interface switching resource configuration parameter prepared by the user equipment corresponding to the user equipment identifier, where the handover preparation failure message includes the user equipment identifier. , or

The second receiving module 95 is further configured to receive, by using the first interface, a handover preparation failure message sent by the second access network device, where the handover preparation failure message is that the second core network device fails when the handover preparation fails. A message sent to the second access network device.

Further, the first access network device in the embodiment of the present invention sends the first handover preparation request message to the second access network device by using the first interface, and the first access network device sends the indication to the first core network device. The second handover preparation request message of the information, so that the first core network device allocates the non-access layer security parameter to the user equipment in advance, thereby reducing the handover delay and improving the handover effectiveness.

FIG. 10 is a schematic structural diagram of a second access network device according to another embodiment of the present invention; and is located in a scenario where a user equipment is switched from a first access network to a second access network, where The first access network and the second access network are different types of radio access networks, as shown in FIG. 10, including:

The first receiving module 11 is configured to receive, by using the first interface, a first handover preparation request message that is sent by the first access network device, where the first handover preparation request message includes a user equipment identifier;

The configuration module 12 is configured to: after the first receiving module 11 receives the first handover preparation request message sent by the first access network device, the first handover preparation request message is corresponding to the user equipment identifier User equipment prepares air interface switching resource configuration parameters;

The second receiving module 13 is configured to receive a second handover preparation request message sent by the second core network device, where the second handover preparation request message is that the first access network device passes the first core network device a message sent by the second core network device, where the second handover preparation request message includes a user equipment identifier;

The first sending module 14 is configured to send the air interface switching resource configuration parameter prepared by the user equipment corresponding to the user equipment identifier to the first core network device by using the second core network device, so that the first sending module The core network device sends a second handover preparation response message to the first access network device, where the second handover preparation response message includes the second access network device prepared for the user equipment corresponding to the user equipment identifier. The air interface switches the resource configuration parameter, so that the first access network device sends a handover message to the user equipment, where the handover message includes the air interface handover resource configuration parameter, so that the user equipment is configured according to the handover message. Switching from the first access network to the second access network;

For example, the first access network device includes a radio resource control device of the first access network, and the second access network device includes a base station and a radio resource control device of the second access network, The radio resource control device of the first access network and the base station of the second access network are located in the same multi-standard base station device, and the radio resource control device of the first access network and the second access The base station of the network is communicatively connected through an interface unit in the multi-standard base station device; The unit is a signaling channel between processing modules corresponding to different standard base stations in the multi-standard base station device;

Or

The second receiving module 13 is further configured to receive the non-access stratum security parameter sent by the second core network device, where the non-access stratum security parameter is that the first core network device is according to the first connection The user equipment identifier and the indication information included in the second handover preparation request message sent by the network access device, the non-access layer security parameter is allocated to the user equipment corresponding to the user equipment identifier, and the non-access layer security parameter is sent. Giving the second core network device;

The second access network device further includes:

The second sending module 15 is configured to send, by the second receiving module 13 the non-access stratum security parameter sent by the second core network device, to the first access network device by using the first interface a first handover preparation response message, where the first handover preparation response message includes the air interface handover resource configuration parameter and the non-access layer security parameter, so that the first access network device sends the first access network device to the user equipment a handover message, where the handover message includes the air interface handover resource configuration parameter and the non-access layer security parameter, so that the user equipment is configured according to the handover message. Switching from the first access network to the second access network.

For example, the second sending module 15 is further configured to send a handover resource preparation failure message to the first access network device by using the first interface.

For example, the first receiving module 11 is further configured to receive, by using the first interface, a handover preparation failure message sent by the first access network device, where the handover preparation failure message includes the user equipment identifier, and is released. The air interface switching resource configuration parameter prepared by the user equipment corresponding to the user equipment, where the handover preparation failure message is sent by the first core network device to the first access network device when the handover preparation fails; or

The second receiving module 13 is further configured to receive a handover preparation failure message sent by the second core network device, where the handover preparation failure message includes the user equipment identifier, and is released as a user corresponding to the user equipment identifier. The air interface switching resource configuration parameter prepared by the device, where the handover preparation failure message is sent by the second core network device to the second access network device when the handover preparation fails.

FIG. 11 is a schematic structural diagram of a first core network device according to another embodiment of the present invention; and is located on a first access network side, and is applied to a scenario in which a user equipment is switched from a first access network to a second access network. The first access network and the second access network are different types of radio access networks, the first access network is a long-term evolution LTE access network, and the first core network device is a mobility management entity MME; As shown in Figure 11, it includes:

The receiving module 21 is configured to receive a second handover preparation request message sent by the first access network device, where the second handover preparation request message includes indication information and a user equipment identifier; The information is used to request the first core network device to allocate non-access stratum security parameter information to the user equipment corresponding to the user equipment identifier in advance;

The distribution module 22 is configured to allocate, according to the indication information received by the receiving module 21 and the user equipment identifier, a non-access stratum security parameter for the user equipment corresponding to the user equipment identifier, and a sending module 23, configured to: The non-access stratum security parameter allocated by the allocating module 22 is sent to the second access network device by using the second core network device, so that the second access network device sends the first access network device to the first access network device by using the first interface. a first handover preparation response message, where the first handover preparation response message includes an air interface handover resource configuration parameter prepared by the second access network device for the user equipment corresponding to the user equipment identifier, and the first core network device Determining, by the user equipment, a non-access stratum security parameter that is allocated by the user equipment, to enable the first access network device to send a handover message to the user equipment, where the handover message includes the air interface switching resource configuration a parameter and the non-access stratum security parameter, to enable the user equipment to switch from the first access network to the second according to the handover message Access Network;

For example, the first access network device includes a radio resource control device of the first access network, and the second access network device includes a base station and a radio resource control device of the second access network, The radio resource control device of the first access network and the base station of the second access network are located in the same multi-standard base station device, and the radio resource control device of the first access network and the second access The base station of the network is connected by using an interface unit in the multi-standard base station device; the interface unit is a signaling channel between processing modules corresponding to different standard base stations in the multi-standard base station device;

Or

The first access network device includes a base station and a radio resource control device of the first access network, and the second access network device includes a radio resource control device of the second access network, where the first The base station of the access network and the radio resource control device of the second access network are located at the same multiple In the system of the base station, the base station of the first access network and the radio resource control device of the second access network are connected by using an interface unit in the multi-standard base station device;

For example, the sending module 23 is further configured to send a handover preparation failure message to the first access network device, where the handover preparation failure message includes the user equipment identifier, so that the first access The network device sends the handover preparation failure message to the second access network device by using the first interface, so that the second access network device is released as the user equipment identifier according to the handover preparation failure message. The air interface switching resource configuration parameters prepared by the user equipment.

FIG. 12-1 is a schematic structural diagram of a switching system of different radio access networks according to another embodiment of the present invention; as shown in FIG. 12-1, the method includes: a first access network device 31, a first core network device 32, a second access network device 33 and a second core network device 34;

The first access network device 31 and the first core network device 32 are located in a first access network; the second access network device 33 and the second core network device 34 are located in a second access network; As shown in FIG. 12-1, it is assumed that the first access network device 31 includes a radio resource control device 311 of the first access network, and the second access network device includes the second access network device. The base station 331 and the radio resource control device 332 of the second access network, the radio resource control device 311 of the first access network and the base station 331 of the second access network are located in the same multi-standard base station device 35. The radio resource control device 311 of the first access network and the base station 331 of the second access network are communicatively connected through an interface unit 351 in the multi-standard base station device 35; a signaling channel between processing modules corresponding to different standard base stations in the base station device;

The radio resource control device 311 of the first access network and the radio resource control device 332 of the second access network communicate with each other through the first interface 352;

The first interface 352 is an interface between the multi-standard base station device 35 where the radio resource control device 31 1 of the first access network is located and the radio resource control device 332 of the second access network; Another structural schematic diagram of a handover system for different radio access networks according to another embodiment of the present invention is shown in Figure 12-2.

It is assumed that the first access network device 31 includes a base station 311 of the first access network and a radio resource control device 312, and the second access network device 33 includes a radio resource control device of the second access network. 331, the base station 31 1 of the first access network and the radio resource control device 331 of the second access network are located in the same multi-standard base station device 35, the base station 311 of the first access network and the The radio resource control device 331 of the second access network performs a communication connection through the interface unit 351 in the multi-standard base station device 35;

The radio resource control device 312 of the first access network and the radio resource control device 331 of the second access network communicate with each other through the first interface 352;

The first interface 352 is an interface between the multi-standard base station device 35 where the radio resource control device 331 of the second access network is located and the radio resource control device 312 of the first access network; The access network device 31 is the first access network device described in the embodiment shown in FIG. 9;

The second access network device 33 is the second access network device in the embodiment shown in FIG. 10; the first core network device is the first core network device in the embodiment shown in FIG. The second core network device 34 is configured to receive a second handover preparation request message sent by the first core network device 32 from the first access network device 31, where the second handover preparation request is sent. The message is sent to the second access network device 33, so that the second access network device 33 prepares the user equipment corresponding to the user equipment identifier according to the user equipment identifier included in the second handover preparation request message. Air interface switching resource configuration parameters;

The second core network device 34 is further configured to send the second access network device 33 as The air interface switching resource configuration parameter prepared by the user equipment corresponding to the user equipment identifier is sent to the first core network device 32.

For example, the second core network device 34 is further configured to send the non-access stratum security parameter allocated by the first core network device 32 to the second access network device 33, where the first core The non-access stratum security parameter allocated by the network device 32 is that the user equipment identifier and the indication information are included in the second handover preparation request message sent by the first access network device 31, and the user equipment corresponding to the user equipment identifier is allocated. Non-access stratum security parameters;

For example, the second core network device 34 is further configured to send a handover preparation failure message to the second access network device 33 when the handover preparation fails, where the handover preparation failure message includes a user equipment identifier, and the translation The air interface switching resource configuration parameter prepared by the user equipment corresponding to the user equipment identifier is placed.

FIG. 13 is a schematic structural diagram of a first access network device according to another embodiment of the present invention;

The transmitter 41 is configured to send, by using the first interface, a first handover preparation request message to the second access network device, where the first handover preparation request message includes a user equipment identifier, so that the second access network device prepares according to the first handover The request message is configured to prepare an air interface switching resource configuration parameter for the user equipment corresponding to the user equipment identifier, and send a second handover preparation request message to the first core network device, where the second handover preparation request message includes a user equipment identifier, so that the a core network device sends the second handover preparation request message to the second access network device by using the second core network device, so that the second access network device identifies the user equipment identifier according to the user equipment identifier. The air interface switching resource configuration parameter prepared by the user equipment is sent to the first core network device by using the second core network device;

The receiver 42 is configured to receive a second handover preparation response message sent by the first core network device, where the second handover preparation response message includes an air interface handover resource configuration parameter.

The transmitter 41 is further configured to send a handover message to the user equipment corresponding to the user equipment identifier, where the handover message includes the air interface handover resource configuration parameter, so that the user equipment obtains a handover message according to the handover message. Transmitting, by the first access network, to the second access network;

Or

The first interface is an interface between the multi-standard base station device where the radio resource control device of the second access network is located and the radio resource control device of the first access network. For example, if the first access network is a long term evolution LTE access network, the first core network device is a mobility management entity MME;

The second handover preparation response message sent by the first core network device further includes a non-access stratum security parameter, where the non-access stratum security parameter is that the first core network device passes the second core network device. After receiving the air interface switching resource configuration parameter prepared by the second access network device for the user equipment corresponding to the user equipment identifier, the non-access layer security parameter allocated by the user equipment corresponding to the user equipment identifier.

For example, if the first access network is a long term evolution LTE access network, and the first core network device is a mobility management entity MME, the sender sends the first to the first core network device. The second handover preparation request message includes the user equipment identifier and the indication information, where the indication information is used to request the first core network device to allocate non-access layer security parameter information to the user equipment in advance; A core network device allocates a non-access stratum security parameter to the user equipment corresponding to the user equipment identifier according to the indication information and the user equipment identifier, and passes the non-access stratum security parameter to the second core network device. Sending to the second access network device;

The receiver 42 is further configured to receive, by using the first interface, the first handover preparation response message that is sent by the second access network device, where the first handover preparation response message includes the air interface switching resource. Configuration parameters and the non-access stratum security parameters;

The transmitter 41 is further configured to send a handover message to the user equipment corresponding to the user equipment identifier, where the handover message includes the air interface handover resource configuration parameter and the non-access layer security parameter, so that the The user equipment switches from the first access network to the second access network according to the handover message.

For example, the receiver 42 is further configured to receive, by using the first interface, a handover resource preparation failure message sent by the second access network device.

For example, the receiver 42 is further configured to receive a handover preparation failure message sent by the first core network device.

The transmitter 41 is further configured to send the handover preparation failure message to the second access network device by using the first interface, so that the second access network device is released as a user equipment identifier according to the handover preparation failure message. The air interface switching resource configuration parameter prepared by the user equipment, where the handover preparation failure message includes the user equipment identifier, or The receiver 42 is further configured to receive, by using the first interface, a handover preparation failure message sent by the second access network device, where the handover preparation failure message is that the second core network device sends to the second connection when the handover preparation fails. The message sent by the network access device.

FIG. 14 is a schematic structural diagram of a second access network device according to another embodiment of the present invention; as shown in FIG. 14, located on a second access network side, including:

The receiver 51 is configured to receive, by using the first interface, a first handover preparation request message sent by the first access network device, where the first handover preparation request message includes a user equipment identifier;

The processor 52 is configured to prepare an air interface switching resource configuration parameter for the user equipment corresponding to the user equipment identifier according to the first handover preparation request message.

The receiver 51 is further configured to receive a second handover preparation request message sent by the second core network device, where the second handover preparation request message is sent by the first access network device to the first core network device. a message sent by the second core network device, where the second handover preparation request message includes a user equipment identifier;

The transmitter 53 is configured to send the air interface switching resource configuration parameter prepared by the user equipment corresponding to the user equipment identifier to the first core network device by using the second core network device, so that the first core network The device sends a second handover preparation response message to the first access network device, where the second handover preparation response message includes the air interface switch prepared by the second access network device for the user equipment corresponding to the user equipment identifier. The resource configuration parameter is configured to enable the first access network device to send a handover message to the user equipment corresponding to the user equipment identifier, where the handover message includes the air interface handover resource configuration parameter, so that the user equipment performs the handover according to the Message from the office Transmitting, by the first access network, to the second access network;

Or

The receiver 51 is further configured to receive a non-access stratum security parameter sent by the second core network device, where the non-access stratum security parameter is that the first core network device is configured according to the first access The user equipment identifier and the indication information included in the second handover preparation request message sent by the network device, the non-access layer security parameter is allocated to the user equipment corresponding to the user equipment identifier, and the non- The access layer security parameter is sent to the second core network device;

The transmitter 53 is further configured to send, by using the first interface, a first handover preparation response message to the first access network device, where the first handover preparation response message includes the air interface handover resource configuration parameter and the a non-access stratum security parameter, in which the first access network device sends a handover message to the user equipment corresponding to the user equipment identifier, where the handover message includes the air interface handover resource configuration parameter and the non-access a layer security parameter, such that the user equipment switches from the first access network to the second access network according to the handover message.

For example, the transmitter 53 is further configured to send, by using the first interface, a handover resource preparation failure message to the first access network device.

For example, the receiver 51 is further configured to receive, by using the first interface, a handover preparation failure message sent by the first access network device, where the handover preparation failure message includes the user equipment identifier, and the translation is The user equipment identifier corresponds to an air interface switching resource configuration parameter prepared by the user equipment, where the handover preparation failure message is sent by the first core network device to the first access network device when the handover preparation fails; or

FIG. 15 is a schematic structural diagram of a first core network device according to another embodiment of the present invention, which is located on a first access network side, where the first access network is a long-term evolution LTE access network, and the first The core network device is a mobility management entity MME. As shown in FIG. 15, the first core network device includes:

The receiver 61 is configured to receive a second handover preparation request message sent by the first access network device, where the second handover preparation request message includes indication information and a user equipment identifier, where the indication information is used to request the first The core network device allocates non-access stratum security parameter information to the user equipment corresponding to the user equipment identifier in advance;

The processor 62 is configured to allocate a non-access stratum security parameter to the user equipment corresponding to the user equipment identifier according to the indication information and the user equipment identifier;

The sender 63 is configured to send the non-access stratum security parameter to the second access network device by using the second core network device, so that the second access network device sends the first access network device to the first interface The network access device sends a first handover preparation response message, where the first handover preparation response message includes an air interface handover resource configuration parameter prepared by the second access network device for the user equipment corresponding to the user equipment identifier, and the a non-access stratum security parameter assigned by the user equipment to the user equipment, and the first access network device sends a handover message to the user equipment, where the handover message includes the The air interface switches the resource configuration parameter and the non-access stratum security parameter, so that the user equipment switches from the first access network to the second access network according to the handover message;

The first interface is an interface between the multi-standard base station device where the radio resource control device of the first access network is located and the radio resource control device of the second access network; or

For example, the transmitter 63 is further configured to send a handover preparation failure message to the first access network device, where the handover preparation failure message includes a user equipment identifier, so that the first access network device Transmitting the handover preparation failure message to the second access network device by using the first interface, so that the second access network device is translated into the user equipment identifier according to the handover preparation failure message. The air interface switching resource configuration parameter prepared by the user equipment.

In the several embodiments provided by the present application, it should be understood that the disclosed system, apparatus, and method may be implemented in other manners. For example, the device embodiments described above are merely illustrative. For example, the division of cells is only a logical function division. In actual implementation, there may be another division manner. For example, multiple units or components may be combined or integrated. Go to another system, or some features can be ignored, or not executed. Another point that is shown or discussed The coupling or direct coupling or communication connection to each other may be an indirect coupling or communication connection through some interface, device or unit, and may be in electrical, mechanical or other form.

The units described as separate components may or may not be physically separate, and the components displayed as the units may or may not be physical units, i.e., may be located in one place, or may be distributed over multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of the embodiment.

In addition, each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit. The above integrated unit can be implemented in the form of hardware or in the form of a hardware plus software functional unit.

The above-described integrated unit implemented in the form of a software functional unit may be stored in the form of code in a computer readable storage medium. The above code is stored in a computer readable storage medium and includes instructions for causing a processor or hardware circuit to perform some or all of the steps of various embodiments of the present invention. The foregoing storage medium includes: a universal serial bus interface, a micro high-capacity mobile storage disk, a mobile hard disk, and a read-only memory that do not require a physical drive.

Read-Only Memory (ROM), Random Access Memory (English): Random Access Memory (RAM), disk or optical disk, etc., which can store program code.

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; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those skilled in the art that: The technical solutions described in the foregoing embodiments are modified, or some of the technical features are equivalently replaced; and the modifications or substitutions do not deviate from the technical scope of the technical solutions of the embodiments of the present invention.

Claims

claims

1. A switching method for different wireless access networks, applied in a scenario where user equipment switches from a first access network to a second access network, where the first access network and the second access network are Wireless access networks of different standards are characterized by:

The first access network device sends a first handover preparation request message to the second access network device through the first interface, and the first handover preparation request message includes the user equipment identification; so that the second access network device prepares according to the first handover The request message prepares air interface switching resource configuration parameters for the user equipment corresponding to the user equipment identification;

The first access network device sends a second handover preparation request message to the first core network device, where the second handover preparation request message includes a user equipment identifier; so that the first core network device sends the second handover preparation request message. The handover preparation request message is sent to the second access network device through the second core network device, so that the second access network device configures air interface handover resources prepared for the user equipment corresponding to the user equipment identification according to the user equipment identification. The parameters are sent to the first core network device through the second core network device;

The first access network device receives a second handover preparation response message sent by the first core network device, where the second handover preparation response message includes air interface handover resource configuration parameters; the first access network device sends a The user equipment corresponding to the user equipment identification sends a switching message, and the switching message includes the air interface switching resource configuration parameter, so that the user equipment switches from the first access network to the first access network according to the switching message. second access network;

2. The method according to claim 1, characterized in that: the first access network device includes a radio resource control device of the first access network, and the second access network device includes the second access network device. The base station and radio resource control equipment of the access network, the radio resource control equipment of the first access network and the base station of the second access network are located in the same multi-standard base station equipment, and the radio resource control equipment of the first access network The wireless resource control device communicates with the base station of the second access network through an interface unit in the multi-standard base station equipment; the interface unit in the multi-standard base station equipment is signaling between processing modules corresponding to different standard base stations. aisle;

The radio resource control device of the first access network and the radio resources of the second access network The control devices are communicated and connected through the first interface;

The first interface is an interface between the multi-standard base station equipment where the radio resource control equipment of the first access network is located and the radio resource control equipment of the second access network;

or

The first access network device includes a base station and a radio resource control device of the first access network, the second access network device includes a radio resource control device of the second access network, and the first The base station of the access network and the radio resource control equipment of the second access network are located in the same multi-standard base station equipment, and the base station of the first access network and the radio resource control equipment of the second access network pass The interface unit in the multi-standard base station equipment performs communication connections, and the interface unit is a signaling channel between processing modules corresponding to different standard base stations in the multi-standard base station equipment;

The wireless resource control device of the first access network and the wireless resource control device of the second access network are communicated through a first interface;

The first interface is an interface between the multi-standard base station equipment where the radio resource control equipment of the second access network is located and the radio resource control equipment of the first access network.

3. The method according to claim 1 or 2, characterized in that if the first access network is a long-term evolution LTE access network and the first core network device is a mobility management entity MME; then The second handover preparation response message sent by the first core network device also includes non-access layer security parameters. The non-access layer security parameters are all the parameters received by the first core network device through the second core network device. After the second access network device configures the air interface switching resource configuration parameters prepared for the user equipment corresponding to the user equipment identification, it allocates non-access layer security parameters to the user equipment corresponding to the user equipment identification.

4. The method according to claim 3, wherein if the first access network is a Long Term Evolution LTE access network and the first core network device is a mobility management entity MME, then in the An access network device sends the first handover preparation request message to the second access network device through the first interface;

The second handover preparation request message sent by the first access network device to the first core network device includes the user equipment identification and indication information, and the indication information is used to request the first core network device to be The user equipment allocates non-access layer security parameter information in advance; so that the first core network device configures the user equipment according to the instruction information and the user equipment identification. Allocate non-access layer security parameters to the user equipment corresponding to the device identification, and send the non-access layer security parameters to the second access network device through the second core network device;

Receive the first handover preparation response message sent by the second access network device through the first interface, where the first handover preparation response message includes the air interface handover resource configuration parameter and the non-access layer security parameters;

Send a switching message to the user equipment corresponding to the user equipment identification, where the switching message includes the air interface switching resource configuration parameters and the non-access layer security parameters, so that the user equipment switches from the The first access network is switched to the second access network;

5. The method according to any one of claims 1 to 4, characterized in that, after the first access network device sends the first handover preparation request message to the second access network device through the first interface, include:

The first access network device receives the handover resource preparation failure message sent by the second access network device through the first interface.

6. The method according to any one of claims 1 to 4, characterized in that, after the first access network device sends the second handover preparation request message to the first core network device, the method includes: An access network device receives the handover preparation failure message sent by the first core network device, and sends the handover preparation failure message to the second access network device through the first interface, so that the second access network device Release the air interface switching resource configuration parameters prepared for the user equipment corresponding to the user equipment identification according to the handover preparation failure message, where the handover preparation failure message includes the user equipment identification, or

The first access network device receives a handover preparation failure message sent by the second access network device through a first interface. The handover preparation failure message is a message sent by the second core network device to the second access network device when handover preparation fails. Messages sent by network devices.

7. The method according to any one of claims 1 to 6, characterized in that, if the first access network is a Long Term Evolution LTE access network, the second access network is a Universal Mobile Communications System UMTS access network. Access the network, or:

Then the first interface is the Iub interface.

8. The method according to any one of claims 1 to 6, characterized in that if the first connection The access network is the Long Term Evolution LTE access network, the second access network is the Universal Mobile Communications System UMTS access network, and the user equipment identity includes the cell wireless network temporary identity C-RNTI, the International Mobile Subscriber Identity IMSI, and the handover source. At least one of the unique identifiers eNB UE X2AP ID in the source evolved base station eNB allocated by the evolved base station eNB to the user equipment.

9. The method according to any one of claims 1 to 6, characterized in that, if the first access network is a Universal Mobile Communications System UMTS access network, the second access network is a Long Term Evolution LTE access network. When entering the network, the user equipment identification includes the wireless network temporary identification U-RNTI of the global terrestrial radio access network UTRAN, and the handover source radio network controller RNC assigned to the user equipment in the source radio network controller RNC. The unique identifier is at least one of S-RNTI and International Mobile Subscriber Identity IMSI.

10. A method for switching between different wireless access networks, applied in a scenario where user equipment switches from a first access network to a second access network, where the first access network and the second access network are Wireless access networks of different standards are characterized by:

The second access network device receives the first handover preparation request message sent by the first access network device through the first interface, where the first handover preparation request message includes the user equipment identification;

The second access network device prepares air interface handover resource configuration parameters for the user equipment corresponding to the user equipment identification according to the first handover preparation request message;

The second access network device receives a second handover preparation request message sent by the second core network device, and the second handover preparation request message is the first access network device sending a request message to a third handover preparation request message through the first core network device. The second message sent by the core network device, the second handover preparation request message includes the user equipment identification;

The second access network device sends the air interface switching resource configuration parameters prepared for the user equipment corresponding to the user equipment identification to the first core network device through the second core network device, so that the first core network device The core network device sends a second handover preparation response message to the first access network device, where the second handover preparation response message includes the second handover preparation response message prepared by the second access network device for the user equipment corresponding to the user equipment identification. Air interface switching resource configuration parameters; so that the first access network device sends a switching message to the user equipment corresponding to the user equipment identification, and the switching message includes the air interface switching resource configuration parameter, so that the user equipment can The switching message is switched from the first access network to the second access network;

The first access network device and the first core network device are located in the first access network, so The second access network device and the second core network device are located in the second access network.

11. The method according to claim 10, characterized in that: the first access network device includes a radio resource control device of the first access network, and the second access network device includes the second access network device. The base station and radio resource control equipment of the access network, the radio resource control equipment of the first access network and the base station of the second access network are located in the same multi-standard base station equipment, and the radio resource control equipment of the first access network The radio resource control device communicates with the base station of the second access network through an interface unit in the multi-standard base station device; the interface unit is a connection between processing modules corresponding to different standard base stations in the multi-standard base station device. signaling channel;

or

The first access network device includes a base station and a radio resource control device of the first access network, the second access network device includes a radio resource control device of the second access network, and the first The base station of the access network and the radio resource control equipment of the second access network are located in the same multi-standard base station equipment, and the base station of the first access network and the radio resource control equipment of the second access network pass The interface unit in the multi-standard base station equipment performs communication connections;

12. The method according to claim 10 or 11, characterized in that, if the first access network is a long-term evolution LTE access network, the first core network device is a mobility management entity MME;

Then, after the second access network device receives the first handover preparation request message sent by the first access network device through the first interface, it includes:

The second access network device receives the non-access layer security parameters sent by the second core network device, and the non-access layer security parameters are the values of the first core network device according to the first access network device. The user equipment identification and indication information included in the second handover preparation request message sent are The user equipment corresponding to the user equipment identification allocates non-access layer security parameters, and sends the non-access layer security parameters to the second core network device;

Send a first handover preparation response message to the first access network device through the first interface, where the first handover preparation response message includes the air interface handover resource configuration parameter and the non-access layer security parameter; so that The first access network device sends a switching message to the user equipment corresponding to the user equipment identification, where the switching message includes the air interface switching resource configuration parameters and the non-access layer security parameters, so that the user The device switches from the first access network to the second access network according to the switching message.

13. The method according to any one of claims 10 to 12, characterized in that, after the second access network device receives the first handover preparation request message sent by the first access network device through the first interface, , include:

The second access network device sends a handover resource preparation failure message to the first access network device through the first interface.

14. The method according to any one of claims 10 to 12, characterized in that, after the second access network device receives the first handover preparation request message sent by the first access network device through the first interface, , include:

The second access network device receives the handover preparation failure message sent by the first access network device through the first interface. The handover preparation failure message includes the user equipment identification, and is released as the user equipment identification corresponding to The air interface handover resource configuration parameters prepared by the user equipment, the handover preparation failure message is sent by the first core network device to the first access network device when handover preparation fails; or

The second access network device receives a handover preparation failure message sent by the second core network device. The handover preparation failure message includes the user equipment identification, and is translated into a user equipment corresponding to the user equipment identification. air interface handover resource configuration parameters, and the handover preparation failure message is sent by the second core network device to the second access network device when handover preparation fails.

15. A method for switching between different wireless access networks, applied in a scenario where user equipment switches from a first access network to a second access network, where the first access network and the second access network are Wireless access networks of different standards are characterized by:

The first access network is a long-term evolution LTE access network, and the first core network device is a mobility management physical entity MME;

The first core network device receives a second handover preparation request message sent by the first access network device. The second handover preparation request message includes indication information and a user equipment identification; the indication information is used to request the third handover preparation request message. A core network device allocates non-access layer security parameter information in advance to the user equipment corresponding to the user equipment identification;

According to the indication information and the user equipment identification, allocate non-access layer security parameters to the user equipment corresponding to the user equipment identification;

Send the non-access layer security parameters to the second access network device through the second core network device; so that the second access network device sends the first access network device to the first access network device through the first interface. Handover preparation response message, the first handover preparation response message includes the air interface handover resource configuration parameters prepared by the second access network device for the user equipment corresponding to the user equipment identification and the air interface handover resource configuration parameters prepared by the first core network device for the user equipment identification. non-access layer security parameters allocated by the user equipment corresponding to the user equipment identification; so that the first access network device sends a handover message to the user equipment, where the handover message includes the air interface handover resource configuration parameters and The non-access layer security parameters are used to enable the user equipment to switch from the first access network to the second access network according to the switching message;

16. The method according to claim 15, wherein the first access network device includes a radio resource control device of the first access network, and the second access network device includes the second access network device. The base station and radio resource control equipment of the access network, the radio resource control equipment of the first access network and the base station of the second access network are located in the same multi-standard base station equipment, and the radio resource control equipment of the first access network The radio resource control device communicates with the base station of the second access network through an interface unit in the multi-standard base station device; the interface unit is a connection between processing modules corresponding to different standard base stations in the multi-standard base station device. signaling channel;

or The first access network device includes a base station and a radio resource control device of the first access network, the second access network device includes a radio resource control device of the second access network, and the first The base station of the access network and the radio resource control equipment of the second access network are located in the same multi-standard base station equipment, and the base station of the first access network and the radio resource control equipment of the second access network pass The interface unit in the multi-standard base station equipment performs communication connections;

17. The method according to any one of claims 15-16, characterized in that, after the first core network device receives the second handover preparation request message sent by the first access network device, it includes:

The first core network device sends a handover preparation failure message to the first access network device, and the handover preparation failure message includes a user equipment identifier, so that the first access network device reports the handover preparation failure. The message is sent to the second access network device through the first interface, so that the second access network device releases the air interface switching resources prepared for the user equipment corresponding to the user equipment identification according to the handover preparation failure message. Configuration parameters.

18. A first access network device, located on the first access network side, used in a scenario where the user equipment switches from the first access network to the second access network, the first access network and the The second access network is a wireless access network of different standards, and is characterized by including:

A first sending module configured to send a first handover preparation request message to the second access network device through the first interface, where the first handover preparation request message includes a user equipment identifier; so that the second access network device Prepare air interface handover resource configuration parameters for the user equipment corresponding to the user equipment identification according to the first handover preparation request message;

The second sending module is configured to send a second handover preparation request message to the first core network device, where the second handover preparation request message includes the user equipment identification; so that the first core network device sends the first handover preparation request message. The second handover preparation request message is sent to the second access network device through the second core network device, so that the second access network device prepares the user equipment corresponding to the user equipment identification according to the user equipment identification. The air interface switching resource configuration parameters are sent to the first core network device through the second core network device; The first receiving module is configured to receive the second handover preparation response message sent by the first core network device, where the second handover preparation response message includes air interface switching resource configuration parameters; the third sending module is used to send the After receiving the second handover preparation response message sent by the first core network device, the first receiving module sends a handover message to the user equipment, where the handover message includes the air interface handover resource configuration parameter, so that the user The device switches from the first access network to the second access network according to the switching message;

19. The first access network device according to claim 18, wherein the first access network device includes a radio resource control device of the first access network, and the second access network device It includes a base station and a radio resource control device of the second access network, the radio resource control device of the first access network and the base station of the second access network are located in the same multi-standard base station device, and the third The radio resource control equipment of an access network communicates with the base station of the second access network through an interface unit in the multi-standard base station equipment; the interface unit is corresponding to different standard base stations in the multi-standard base station equipment. Signaling channels between processing modules;

or

20. The first access network device according to claim 18 or 19, characterized in that, if The first access network is a long-term evolution LTE access network, and the first core network device is a mobility management entity MME;

Then the second handover preparation response message sent by the first core network device also includes a non-access layer security parameter, and the non-access layer security parameter is the first core network device through the second core network device. After receiving the air interface switching resource configuration parameters prepared by the second access network device for the user equipment corresponding to the user equipment identification, allocate non-access layer security parameters to the user equipment corresponding to the user equipment identification.

21. The first access network device according to claim 20, wherein if the first access network is a Long Term Evolution LTE access network and the first core network device is a mobility management entity (MME), The second handover preparation request message sent by the second sending module to the first core network device includes the user equipment identification and indication information; the indication information is used to request the first core network device to be the user The user equipment corresponding to the device identification is allocated non-access layer security parameter information in advance; so that the first core network device allocates non-access layer security parameter information to the user equipment corresponding to the user equipment identification according to the instruction information and the user equipment identification. Enter layer security parameters, and send the non-access layer security parameters to the second access network device through the second core network device;

The first access network device also includes:

A second receiving module configured to receive a first handover preparation response message sent by the second access network device through the first interface, where the first handover preparation response message includes air interface handover resource configuration parameters and non-access layer security parameters;

The third sending module is configured to send a switching message to the user equipment based on the second receiving module receiving the first switching preparation response message sent by the second access network device, where the switching message includes The air interface switching resource configuration parameters and the non-access layer security parameters are used to enable the user equipment to switch from the first access network to the second access network according to the switching message;

22. The first access network device according to claims 18-21, characterized in that the second receiving module is further configured to receive the handover sent by the second access network device through the first interface. Resource preparation failure message.

23. The first access network device according to claims 18-21, characterized in that the first receiving module is further configured to receive a handover preparation failure message sent by the first core network device. information, sending the handover preparation failure message to the second access network device through the first interface, so that the second access network device releases the information corresponding to the user equipment identification according to the handover preparation failure message. The air interface handover resource configuration parameters prepared by the user equipment, the handover preparation failure message includes the user equipment identification, or

The second receiving module is further configured to receive a handover preparation failure message sent by the second access network device through the first interface, where the handover preparation failure message is sent by the second core network device when handover preparation fails. The message sent by the second access network device.

24. A second access network device, located on the second access network side, used in a scenario where the user equipment switches from the first access network to the second access network, the first access network and the The second access network is a wireless access network of a different standard, and is characterized in that the second access network equipment includes:

A first receiving module, configured to receive a first handover preparation request message sent by the first access network device through a first interface, where the first handover preparation request message includes a user equipment identifier; a configuration module, configured to After receiving the first handover preparation request message sent by the first access network device, the first receiving module prepares air interface handover resource configuration parameters for the user equipment corresponding to the user equipment identification according to the first handover preparation request message. ;

The second receiving module is configured to receive a second handover preparation request message sent by the second core network device, where the second handover preparation request message is sent by the first access network device to the first core network device through the first core network device. The message sent by the second core network device, the second handover preparation request message includes the user equipment identification;

A first sending module, configured to send the air interface switching resource configuration parameters prepared for the user equipment corresponding to the user equipment identification to the first core network equipment through the second core network equipment, so that the first core The network device sends a second handover preparation response message to the first access network device. The second handover preparation response message includes an air interface prepared by the second access network device for the user equipment corresponding to the user equipment identification. Switching resource configuration parameters; so that the first access network device sends a switching message to the user equipment, and the switching message includes the air interface switching resource configuration parameter, so that the user equipment switches from The first access network is switched to the second access network;

25. The second access network device according to claim 24, characterized in that: the first An access network device includes a radio resource control device of the first access network. The second access network device includes a base station and a radio resource control device of the second access network. The first access network The radio resource control equipment and the base station of the second access network are located in the same multi-standard base station equipment. The radio resource control equipment of the first access network and the base station of the second access network communicate through the multi-standard base station. The interface unit in the device performs communication connections; the interface unit is a signaling channel between processing modules corresponding to different standard base stations in the multi-standard base station equipment;

or

26. The second access network device according to claim 24 or 25, characterized in that, if the first access network is a long-term evolution LTE access network, the first core network device is a mobility management entity MME;

The second receiving module is also configured to receive non-access layer security parameters sent by the second core network device, where the non-access layer security parameters are the values of the first core network device according to the first access use the user equipment identification and instruction information included in the second handover preparation request message sent by the network device, allocate non-access layer security parameters to the user equipment corresponding to the user equipment identification, and send the non-access layer security parameters to The second core network equipment;

The second sending module is configured to send the non-access layer security parameters to the first access network device through the first interface based on the second receiving module receiving the non-access layer security parameters sent by the second core network device. Send a first handover preparation response message, where the first handover preparation response message includes the air interface handover resource configuration parameter and the non-access layer security parameter; so that the first access network device sends a message to the user equipment Send a switching message, where the switching message includes the air interface switching resource configuration parameters and the non-access layer security parameters, so that the user equipment switches from the first access network to the first access network according to the switching message. Second access network.

27. The second access network device according to any one of claims 24 to 26, characterized in that the second sending module is further configured to send handover to the first access network device through the first interface. Resource preparation failure message.

28. The second access network device according to any one of claims 24 to 26, characterized in that, the first receiving module is further configured to receive the data sent by the first access network device through the first interface. Handover preparation failure message, the handover preparation failure message includes the user equipment identification, releases the air interface handover resource configuration parameters prepared for the user equipment corresponding to the user equipment identification, the handover preparation failure message is the first core The network device sends it to the first access network device when handover preparation fails; or

The second receiving module is also configured to receive a handover preparation failure message sent by the second core network device, where the handover preparation failure message includes the user equipment identification, and is released as the user equipment corresponding to the user equipment identification. Prepared air interface handover resource configuration parameters, the handover preparation failure message is sent by the second core network device to the second access network device when handover preparation fails.

29. A first core network device, located on the first access network side, used in the scenario where the user equipment switches from the first access network to the second access network, the first access network and the third access network The second access network is a wireless access network of different standards, the first access network is a long-term evolution LTE access network, and the first core network device is a mobility management entity MME; characterized in that, the first core network Equipment includes:

A receiving module, configured to receive a second handover preparation request message sent by the first access network device, where the second handover preparation request message includes indication information and a user equipment identification; the indication information is used to request the first core The network device allocates non-access layer security parameter information in advance to the user equipment corresponding to the user equipment identification;

An allocation module, configured to allocate non-access layer security parameters to the user equipment corresponding to the user equipment identification according to the indication information received by the receiving module and the user equipment identification; A sending module, configured to send the non-access layer security parameters allocated by the distribution module to the second access network device through the second core network device; so that the second access network device sends the non-access layer security parameters to the second access network device through the first interface. The first access network device sends a first handover preparation response message. The first handover preparation response message includes air interface handover resource configuration parameters prepared by the second access network device for the user equipment corresponding to the user equipment identification and The first core network device assigns non-access layer security parameters to the user equipment corresponding to the user equipment identification; so that the first access network device sends a handover message to the user equipment, in the handover message including the air interface switching resource configuration parameters and the non-access layer security parameters, so that the user equipment switches from the first access network to the second access network according to the switching message;

30. The first core network device according to claim 29, wherein the first access network device includes a radio resource control device of the first access network, and the second access network device includes The base station and radio resource control equipment of the second access network, the radio resource control equipment of the first access network and the base station of the second access network are located in the same multi-standard base station equipment, and the first The radio resource control equipment of the access network and the base station of the second access network are communicated and connected through an interface unit in the multi-standard base station equipment; the interface unit is the processing corresponding to different standard base stations in the multi-standard base station equipment. Signaling channels between modules;

or

Communication connection is made between the radio resource control device of the first access network and the radio resource control device of the second access network through a first interface; The first interface is an interface between the multi-standard base station equipment where the radio resource control equipment of the second access network is located and the radio resource control equipment of the first access network.

31. The first core network device according to any one of claims 29 to 30, characterized in that, the sending module is further configured to send a handover preparation failure message to the first access network device, and the handover The preparation failure message includes the user equipment identification, so that the first access network device sends the handover preparation failure message to the second access network device through the first interface, so that the second access network device The network access device releases the air interface switching resource configuration parameters prepared for the user equipment corresponding to the user equipment identification according to the handover preparation failure message.

32. A switching system for different wireless access networks, characterized by including: a first access network device, a first core network device, a second access network device and a second core network device;

The first access network equipment and the first core network equipment are located in the first access network; the second access network equipment and the second core network equipment are located in the second access network; the first The access network equipment includes a radio resource control equipment of the first access network, the second access network equipment includes a base station of the second access network and a radio resource control equipment of the second access network, The radio resource control equipment of the first access network and the base station of the second access network are located in the same multi-standard base station equipment, and the radio resource control equipment of the first access network and the base station of the second access network are The base station performs communication connections through an interface unit in the multi-standard base station equipment; the interface unit is a signaling channel between processing modules corresponding to different standard base stations in the multi-standard base station equipment;

or

The first interface is an interface between the multi-standard base station equipment where the radio resource control equipment of the second access network is located and the radio resource control equipment of the first access network;

The first access network device is the first access network device according to any one of claims 18-23;

The second access network device is the second access network device according to any one of claims 24-28;

The first core network device is the first core network device in any one of claims 29-31;

The second core network device is configured to receive a second handover preparation request message from the first access network device sent by the first core network device, and send the second handover preparation request message to the The second access network device causes the second access network device to prepare air interface handover resource configuration parameters for the user equipment corresponding to the user equipment identification according to the user equipment identification included in the second handover preparation request message;

The second core network device is further configured to send the air interface switching resource configuration parameters prepared for the user equipment corresponding to the user equipment identification and sent by the second access network device to the first core network device.

33. The system according to claim 32, characterized in that: the second core network device is further configured to send the non-access layer security parameters allocated by the first core network device to the second access network equipment, the non-access layer security parameters allocated by the first core network equipment are based on the user equipment identification and indication information included in the second handover preparation request message sent by the first access network equipment, and are the user equipment Identify the non-access layer security parameters allocated by the corresponding user equipment;

34. The system according to claim 32, wherein the second core network device is further configured to send a handover preparation failure message to the second access network device when handover preparation fails, and the handover preparation fails. The failure message includes the user equipment identification, and the air interface switching resource configuration parameters prepared for the user equipment corresponding to the user equipment identification are released.

35. A first access network device, located on the first access network side, characterized in that it includes: a transmitter, configured to send a first handover preparation request message to the second access network device through the first interface, A handover preparation request message includes the user equipment identification, so that the second access network device prepares air interface switching for the user equipment corresponding to the user equipment identification according to the first handover preparation request message. Change resource configuration parameters; send a second handover preparation request message to the first core network device, where the second handover preparation request message includes a user equipment identifier; so that the first core network device sends the second handover preparation request The message is sent to the second access network device through the second core network device, so that the second access network device, according to the user equipment identification, prepares the air interface switching resource configuration parameters for the user equipment corresponding to the user equipment identification through the The second core network device sends it to the first core network device;

A receiver configured to receive a second handover preparation response message sent by the first core network device, where the second handover preparation response message includes air interface handover resource configuration parameters;

The transmitter is further configured to send a switching message to the user equipment corresponding to the user equipment identification, where the switching message includes the air interface switching resource configuration parameter, so that the user equipment switches from the air interface to the user equipment according to the switching message. The first access network is switched to the second access network;

36. The first access network device according to claim 35, wherein the first access network device includes a radio resource control device of the first access network, and the second access network device It includes a base station and a radio resource control device of the second access network, the radio resource control device of the first access network and the base station of the second access network are located in the same multi-standard base station device, and the third The radio resource control equipment of an access network communicates with the base station of the second access network through an interface unit in the multi-standard base station equipment; the interface unit is corresponding to different standard base stations in the multi-standard base station equipment. Signaling channels between processing modules;

or

The first access network device includes a base station and a radio resource control device of the first access network, the second access network device includes a radio resource control device of the second access network, and the first The base station of the access network and the radio resource control equipment of the second access network are located in the same multi-standard base station equipment, and the base station of the first access network and the radio resource control equipment of the second access network pass The interface unit in the multi-standard base station equipment performs communication connections; The wireless resource control device of the first access network and the wireless resource control device of the second access network are communicated through a first interface;

37. The first access network device according to claim 35 or 36, characterized in that, if the first access network is a long-term evolution LTE access network, the first core network device is a mobility management entity MME;

38. The first access network device according to claim 37, wherein if the first access network is a Long Term Evolution LTE access network and the first core network device is a mobility management entity MME, The second handover preparation request message sent by the sender to the first core network device includes the user equipment identification and indication information, and the indication information is used to request the first core network device to be the user equipment. The device allocates non-access layer security parameter information in advance; so that the first core network device allocates non-access layer security parameters to the user equipment corresponding to the user equipment identification according to the instruction information and the user equipment identification, and sending the non-access layer security parameters to the second access network device through the second core network device;

The receiver is further configured to receive the first handover preparation response message sent by the second access network device through the first interface, where the first handover preparation response message includes the air interface handover resource configuration. parameters and the non-access layer security parameters;

The transmitter is also configured to send a switching message to the user equipment corresponding to the user equipment identification, where the switching message includes the air interface switching resource configuration parameters and the non-access layer security parameters, so that the user The device switches from the first access network to the second access network according to the switching message;

39. The first access network device according to any one of claims 35 to 38, characterized in that, the receiver is further configured to receive handover resources sent by the second access network device through the first interface. Prepare failure message.

40. The first access network device according to any one of claims 35 to 38, wherein the receiver is further configured to receive a handover preparation failure message sent by the first core network device; The sender is also configured to send the handover preparation failure message to the second access network device through the first interface, so that the second access network device releases the user corresponding to the user equipment identification according to the handover preparation failure message. Air interface handover resource configuration parameters prepared by the device, the handover preparation failure message includes the user equipment identification, or

The receiver is further configured to receive a handover preparation failure message sent by the second access network device through the first interface, where the handover preparation failure message is a message sent by the second core network device to the second access network device when handover preparation fails. Messages sent by network devices.

41. A second access network device, located on the second access network side, characterized in that it includes: a receiver, configured to receive the first handover preparation request message sent by the first access network device through the first interface, The first handover preparation request message includes a user equipment identification;

A processor, configured to prepare air interface handover resource configuration parameters for the user equipment corresponding to the user equipment identification according to the first handover preparation request message;

The receiver is further configured to receive a second handover preparation request message sent by the second core network device, where the second handover preparation request message is sent by the first access network device to the third core network device through the first core network device. The second message sent by the core network device, the second handover preparation request message includes the user equipment identification;

A transmitter configured to send the air interface switching resource configuration parameters prepared for the user equipment corresponding to the user equipment identification to the first core network equipment through the second core network equipment, so that the first core network equipment Send a second handover preparation response message to the first access network device, where the second handover preparation response message includes air interface handover resources prepared by the second access network device for the user equipment corresponding to the user equipment identification. Configuration parameters; so that the first access network device sends a switching message to the user equipment corresponding to the user equipment identification, and the switching message includes the air interface switching resource configuration parameter, so that the user equipment sends a switching message according to the switching message Switch from the first access network to the second access network;

42. The second access network device according to claim 41, wherein the first access network device includes a radio resource control device of the first access network, and the second access network The equipment includes a base station and a radio resource control device of the second access network, the radio resource control device of the first access network and the base station of the second access network are located in the same multi-standard base station device, The radio resource control device of the first access network communicates with the base station of the second access network through an interface unit in the multi-standard base station equipment; the interface unit corresponds to different standard base stations in the multi-standard base station equipment. Signaling channels between processing modules;

or

43. The second access network device according to claim 41 or 42, characterized in that, if the first access network is a long-term evolution LTE access network, the first core network device is a mobility management entity MME;

The receiver is further configured to receive non-access layer security parameters sent by the second core network device, where the non-access layer security parameters are the values of the first core network device according to the first access network The user equipment identification and instruction information included in the second handover preparation request message sent by the device allocate non-access layer security parameters to the user equipment corresponding to the user equipment identification, and send the non-access layer security parameters to the user equipment identification. The second core network equipment;

The sender is further configured to send a first handover preparation response message to the first access network device through the first interface, where the first handover preparation response message includes the air interface handover resource configuration parameter and the non- Access layer security parameters; so that the first access network device provides the user with The user equipment corresponding to the equipment identification sends a switching message, and the switching message includes the air interface switching resource configuration parameters and the non-access layer security parameters, so that the user equipment switches from the first interface to the first interface according to the switching message. The access network is switched to the second access network.

44. The second access network device according to any one of claims 41 to 43, characterized in that the sender is further configured to send handover resource preparation to the first access network device through the first interface. Failure message.

45. The second access network device according to any one of claims 41 to 43, wherein the receiver is further configured to receive handover preparation sent by the first access network device through the first interface. The failure message, the handover preparation failure message includes the user equipment identification, and interprets the air interface handover resource configuration parameters prepared for the user equipment corresponding to the user equipment identification, and the handover preparation failure message is the first core network Sent by the device to the first access network device when handover preparation fails; or

Used to receive a handover preparation failure message sent by the second core network device, where the handover preparation failure message includes the user equipment identification, and interpret the air interface handover resource configuration parameters prepared for the user equipment corresponding to the user equipment identification. , the handover preparation failure message is sent by the second core network device to the second access network device when handover preparation fails.

46. A first core network device, located on the first access network side, the first access network is a long-term evolution LTE access network, and the first core network device is a mobility management entity MME; It is characterized by: , the first core network equipment includes:

A receiver, configured to receive a second handover preparation request message sent by the first access network device, where the second handover preparation request message includes indication information and a user equipment identification; the indication information is used to request the first core The network device allocates non-access layer security parameter information in advance to the user equipment corresponding to the user equipment identification;

A processor, configured to allocate non-access layer security parameters to the user equipment corresponding to the user equipment identification according to the indication information and the user equipment identification;

A transmitter configured to send the non-access layer security parameters to the second access network device through the second core network device; so that the second access network device transmits the non-access layer security parameters to the first access network device through the first interface. The network device sends a first handover preparation response message. The first handover preparation response message includes the air interface handover resource configuration parameters prepared by the second access network device for the user equipment corresponding to the user equipment identification and the first handover preparation response message. The core network equipment is the user equipment corresponding to the user equipment identification. allocated non-access layer security parameters; so that the first access network device sends a switching message to the user equipment, where the switching message includes the air interface switching resource configuration parameters and the non-access layer security parameters , so that the user equipment switches from the first access network to the second access network according to the switching message;

47. The first core network device according to claim 46, wherein the first access network device includes a radio resource control device of the first access network, and the second access network device includes The base station and radio resource control equipment of the second access network, the radio resource control equipment of the first access network and the base station of the second access network are located in the same multi-standard base station equipment, and the first The radio resource control equipment of the access network and the base station of the second access network are communicated and connected through an interface unit in the multi-standard base station equipment; the interface unit is the processing corresponding to different standard base stations in the multi-standard base station equipment. Signaling channels between modules;

or

48. The first core network device according to any one of claims 46 to 47, characterized in that, the transmitter is further configured to send a handover preparation failure message to the first access network device, and the handover The preparation failure message includes the user equipment identification, so that the first access network device will The handover preparation failure message is sent to the second access network device through the first interface, so that the second access network device releases the user equipment prepared for the user equipment corresponding to the user equipment identification according to the handover preparation failure message. Air interface switching resource configuration parameters.