CN112423348A

CN112423348A - Method, device and equipment for processing different network switching

Info

Publication number: CN112423348A
Application number: CN201910782890.9A
Authority: CN
Inventors: 梁靖; 陈瑞卡
Original assignee: Datang Mobile Communications Equipment Co Ltd
Current assignee: Datang Mobile Communications Equipment Co Ltd
Priority date: 2019-08-23
Filing date: 2019-08-23
Publication date: 2021-02-26
Anticipated expiration: 2039-08-23
Also published as: CN112423348B

Abstract

The invention provides a method, a device and equipment for processing different network switching, and relates to the technical field of communication. The method is applied to a first network side device, wherein the first network side device is a first base station, and the first base station is a base station of a first network, and comprises the following steps: sending an inquiry request message to a second network side device when the user equipment in the first network is in a connected state, wherein the inquiry request message is used for inquiring a tracking area list of the user equipment in the second network, and the first network and the second network are different networks; and receiving a tracking area list fed back by the second network side equipment according to the query request message. The scheme of the invention solves the problems that the recovery of the user equipment from the different network cannot keep the inactive state, so that the time delay of the subsequent UE entering the connected state is increased, the network needs to establish the connection for the UE again, and the signaling overhead is also large.

Description

Method, device and equipment for processing different network switching

Technical Field

The present invention relates to the field of communications technologies, and in particular, to a method, an apparatus, and a device for processing a handover between different networks.

Background

With the development of wireless communication systems, terminal types and service types are diversified, and the terminal saves power, saves network resources, and meets the requirements of various service types. In order to simultaneously ensure terminal power saving and fast data transmission, a terminal radio resource control RRC state "inactive" is introduced into an NR (New RAT) system of the fifth generation mobile communication technology 5G.

In the RRC inactive state, the NAS state of the non-access stratum of the UE remains in the connected state, but an air interface connection corresponding to the AS of the access stratum of the UE is temporarily suspended. Similar to the idle state, the UE in the RRC inactive state can move within an RNA (radio access network Notification Area) configured on the network side. The UE now has the following capabilities:

-saving the AS layer context in the inactive state of the UE (including storing the related configuration information of the inactive state contained in the RRC release message, the configured parameters in the RRC reconfiguration message or the RRC recovery message, the current base station key KgNB and the control plane integrity key KRRCint, ROHC (Robust Header Compression) state, the PCI (Physical Cell Identifier)/Cell Identifier of the primary serving Cell before entering the inactive state, and the used Cell radio network temporary Identifier C-RNTI before entering the inactive state);

-listening for pages;

-performing measurements and cell reselection;

-periodically performing RNA renewal, or when RNA is removed, performing RNA renewal.

The UE performs a cell reselection procedure after entering the RRC inactive state. The cell reselection process is based on the cell reselection configuration carried by the network side equipment when the UE enters the inactive state and the cell reselection configuration carried in the system message broadcast.

In this state, the terminal maintains the core network connection, but does not perform conventional operations (such as handover, uplink timing update, radio link monitoring, and the like) in an air interface connection state, and does not allocate a terminal identifier (such as C-RNTI) directly used for air interface transmission, and thus cannot directly perform air interface scheduling transmission. In the inactive state, the terminal needs to monitor the paging message to ensure that the call from the network side device can be received. When the inactive terminal moves from the NR system to another system (e.g., LTE/LTE-advanced system), the inactive terminal cannot continue to maintain the inactive state. In this way, when the UE returns to the NR from another system, the UE can only enter the NR idle state, which causes a delay of a subsequent UE entering the connected state to be increased, and the network also needs to establish a connection for the UE again, which results in a large signaling overhead.

Disclosure of Invention

The invention aims to provide a method, a device and equipment for processing the switching of different networks, which avoid the situation that user equipment cannot keep an inactive state when recovering from the different networks by acquiring a tracking area list in the different networks, reduce signaling overhead and shorten the time delay for recovering connection of the user equipment.

In order to achieve the above object, an embodiment of the present invention provides a method for processing a handover between different networks, where the method is applied to a first network-side device, where the first network-side device is a first base station, and the first base station is a base station of a first network, and the method includes:

sending an inquiry request message to a second network side device when the user equipment in the first network is in a connected state, wherein the inquiry request message is used for inquiring a tracking area list of the user equipment in the second network, and the first network and the second network are different networks;

and receiving a tracking area list fed back by the second network side equipment according to the query request message.

Optionally, the query request message carries identification information of the user equipment.

Optionally, the sending the query request message to the second network side device includes:

when the second network is a Long Term Evolution (LTE) network, the query request message is sent to core network equipment through a Next Generation (NG) interface;

the receiving the tracking area list fed back by the second network side device according to the query request message includes:

and receiving the tracking area list fed back by the core network equipment through the NG interface.

when the second network is an LTE network and the first base station supports an independent networking SA mode and a dual-connection EN-DC mode of the second network and the first network, sending the query request message to the second base station through a network interface of the second base station, wherein the second base station is a base station of the second network;

receiving the tracking area list fed back by the second base station through the network interface; wherein the tracking area list is obtained by the second base station inquiring core network equipment.

when the second network is an enhanced LTE network and the first base station and a third base station are both connected to core network equipment, sending the query request message to the core network equipment connected with the first base station through an NG interface, wherein the third base station is a base station of the enhanced LTE network;

and receiving the tracking area list fed back by the core network equipment connected with the first base station through an NG interface.

Optionally, the tracking area list is allocated to the user equipment by a core network device connected to the first base station; alternatively, the first and second electrodes may be,

the tracking area list is obtained by inquiring core network equipment connected with the first base station through core network equipment which is not connected with the first base station.

Optionally, after the receiving the tracking area list fed back by the second network-side device according to the query request message, the method further includes:

and sending the tracking area list to the user equipment.

To achieve the above object, an embodiment of the present invention provides a method for processing a handover between different networks, which is applied to a second network device, and includes:

receiving an inquiry request message sent by a first base station under the condition that user equipment in a first network is in a connected state, wherein the inquiry request message is used for inquiring a tracking area list of the user equipment in a second network, the first base station is a base station of the first network, and the first network and the second network are different networks;

and feeding back a tracking area list corresponding to the query request message.

Optionally, the network side device is a second base station;

the receiving of the query request message sent by the first base station includes:

when the second network is an LTE network and the first base station supports an SA mode and an EN-DC mode, receiving the query request message through a network interface with the first base station;

the feeding back the tracking area list corresponding to the query request message includes:

the tracking area list fed back through the network interface; wherein the tracking area list is obtained by the second base station inquiring core network equipment.

Optionally, after the receiving the query request message through the network interface with the first base station, further includes:

and inquiring the tracking area list of the user equipment in the second network from the core network equipment according to the inquiry request message.

Optionally, the network side device is a core network device;

when the second network is an LTE network, receiving the query request message through an NG interface; or

And when the second network is an enhanced LTE network and the first base station and the third base station are both connected to core network equipment, receiving the query request message through an NG interface, wherein the third base station is a base station of the enhanced LTE network.

Optionally, the feeding back the tracking area list corresponding to the query request message includes:

feeding back the tracking area list through the NG interface.

Optionally, when the second network is an LTE-advanced network, the tracking area list is allocated to the user equipment by the core network device; or, the tracking area list is obtained by querying, by the core network device, the core network device that is not connected to the first base station.

To achieve the above object, an embodiment of the present invention provides a method for processing a handover between different networks, which is applied to a user equipment, and includes:

receiving a tracking area list sent by a first base station; wherein the content of the first and second substances,

the first base station is a base station of a first network; the tracking area list is a tracking area list of the user equipment in a second network, which is inquired by the first base station when the user equipment is in the first network and is in a connected state; the first network and the second network are different networks.

In order to achieve the above object, an embodiment of the present invention provides a network side device, where the network side device is a first base station, and the first base station is a base station of a first network, and includes a transceiver, a memory, a processor, and a computer program stored in the memory and operable on the processor; the processor implements the following steps when executing the program:

Optionally, the transceiver is configured to:

Optionally, the transceiver is further configured to:

and sending the tracking area list to the user equipment.

In order to achieve the above object, an embodiment of the present invention provides a network-side device, including a transceiver, a memory, a processor, and a computer program stored in the memory and executable on the processor; the processor implements the following steps when executing the program:

Optionally, the network side device is a second base station;

the transceiver is to:

Optionally, the processor is further configured to:

Optionally, the network side device is a core network device;

the transceiver is further configured to:

Optionally, the transceiver is further configured to:

feeding back the tracking area list through the NG interface.

To achieve the above object, an embodiment of the present invention provides a user equipment, including a transceiver, a memory, a processor, and a computer program stored in the memory and executable on the processor; when the processor executes the program, the transceiver is used for receiving a tracking area list sent by a first base station; wherein the content of the first and second substances,

To achieve the above object, an embodiment of the present invention provides a device for processing a handover between different networks, where the device is applied to a first base station, and the first base station is a base station of a first network, and the device includes:

a first sending module, configured to send, when a user equipment in the first network is in a connected state, an inquiry request message to a second network-side device, where the inquiry request message is used to inquire a tracking area list of the user equipment in a second network, where the first network and the second network are different networks;

and the first receiving module is used for receiving the tracking area list fed back by the second network side equipment according to the query request message.

To achieve the above object, an embodiment of the present invention provides a device for processing a handover between different networks, which is applied to a second network device, and includes:

a second receiving module, configured to receive, when a user equipment in a first network is in a connected state, an inquiry request message sent by a first base station, where the inquiry request message is used to inquire a tracking area list of the user equipment in a second network, where the first base station is a base station of the first network, and the first network and the second network are different networks;

and the second sending module is used for feeding back the tracking area list corresponding to the query request message.

To achieve the above object, an embodiment of the present invention provides a device for processing a handover between different networks, which is applied to a user equipment, and includes:

a third receiving module, configured to receive a tracking area list sent by the first base station; wherein the content of the first and second substances,

To achieve the above object, an embodiment of the present invention provides a computer-readable storage medium, on which a computer program is stored, which when executed by a processor, implements the steps in the method for processing the handover between different networks applied to the first base station, or the method for processing the handover between different networks applied to the second network side device, or the method for processing the handover between different networks applied to the user equipment.

The technical scheme of the invention has the following beneficial effects:

the method of the embodiment of the invention is used for sending an inquiry request message to the second network side equipment aiming at the user equipment which is in the first network and is in a connection state, inquiring the tracking area list of the user equipment in the second network, and then receiving the tracking area list fed back by the second network side equipment according to the inquiry request message. Therefore, when the first base station indicates the user equipment to enter the inactive state, the received tracking area list can be configured to the user equipment in the indication information, so that the user equipment in the inactive state cannot update the tracking area after being subsequently switched to the second network, and therefore the inactive state can be continuously maintained after being subsequently switched back to the first network, the signaling cost is reduced, and the time delay for the user equipment to recover the connection is shortened.

Drawings

Fig. 1 is a schematic flow chart of a method for processing a handover between different networks according to an embodiment of the present invention;

FIG. 2 is one of the inter-RAT network architectures of LTE and NR;

FIG. 3 is a schematic diagram of an application of the method according to the embodiment of the present invention;

FIG. 4 is a second schematic diagram of the inter-RAT network architecture for LTE and NR;

FIG. 5 is a second schematic diagram of an embodiment of the present invention;

FIG. 6 is a schematic diagram of inter-RAT network architecture for eLTE and NR;

FIG. 7 is a third schematic diagram of an embodiment of a method;

fig. 8 is a flowchart illustrating a method for handover processing in a different network according to another embodiment of the present invention;

fig. 9 is a schematic structural diagram of a first network-side device according to an embodiment of the present invention;

fig. 10 is a schematic structural diagram of a second network-side device according to an embodiment of the present invention;

fig. 11 is a schematic structural diagram of a heterogeneous network handover processing apparatus according to an embodiment of the present invention;

fig. 12 is a schematic structural diagram of a device for processing a handover in a different network according to another embodiment of the present invention;

fig. 13 is a flowchart illustrating a method for performing a handover in a different network according to another embodiment of the present invention;

fig. 14 is a schematic structural diagram of a user equipment according to an embodiment of the present invention;

fig. 15 is a schematic structural diagram of a device for processing a handover between different networks according to another embodiment of the present invention.

Detailed Description

In order to make the technical problems, technical solutions and advantages of the present invention more apparent, the following detailed description is given with reference to the accompanying drawings and specific embodiments.

As shown in fig. 1, a method for processing a handover between different networks according to an embodiment of the present invention is applied to a first network-side device, where the first network-side device is a first base station, and the first base station is a base station of a first network, and the method includes:

step 101, when the user equipment in the first network is in a connected state, sending an inquiry request message to a second network side device, where the inquiry request message is used to inquire a tracking area list of the user equipment in a second network, where the first network and the second network are different networks;

and 102, receiving a tracking area list fed back by the second network side device according to the query request message.

Through the

above steps

101 and 102, the first base station sends, to the user equipment in the first network and in the connected state, an inquiry request message to the second network side equipment, inquires the tracking area list of the user equipment in the second network, and then receives the tracking area list fed back by the second network side equipment according to the inquiry request message. Therefore, when the first base station indicates the user equipment to enter the inactive state, the received tracking area list can be configured to the user equipment in the indication information, so that the user equipment in the inactive state cannot update the tracking area after being subsequently switched to the second network, and therefore the inactive state can be continuously maintained after being subsequently switched back to the first network, the signaling cost is reduced, and the time delay for the user equipment to recover the connection is shortened.

In this embodiment, optionally, the first network is an NR network, and the second network is an LTE/LTE network. The first base station is an NR base station, or gNB. When the UE1 is connected to the NR network and is in a connected state, the home base station gNB sends a query request message for querying the tracking area list TA list of the LTE/LTE network of the UE1 to the second network side device, and the second network side device feeds back the corresponding TA list to the gNB according to the received query request message, so that the gNB can receive the TA list required by the UE.

Optionally, in this embodiment, after step 102, the method further includes:

and sending the tracking area list to the user equipment.

Therefore, the user equipment is sent to the user equipment in the TA list of the second network, the user equipment can not update the tracking area based on the TA list after being switched to the second network subsequently, and the inactive state can be continuously maintained after being switched back to the first network.

In this manner, queries for the user device may be completed based on the identification information of the user device. The identification information may be, for example, a temporary mobile subscriber identity, S-TMSI.

Since the second network may be an LTE/LTE network, in this embodiment, if the second network is an LTE network, optionally, in step 101, sending an inquiry request message to the second network side device includes:

step 102 comprises:

Here, in the case where the second network is an LTE network, the first base station transmits the query request message through the NG interface, and receives the TA list through the NG interface.

For example, in the LTE and NR cross radio access technology (inter-RAT) network architecture shown in fig. 2, the NR base station gNB is connected to the 5G core network NGC, while the LTE base station LTE eNB is connected to the 4G core network EPC.

When the UE is connected to the NR network and is in a connected state, the gNB sends a query request message to the core network device, such as an access and mobility management function AMF, as shown in fig. 3. The query request message includes identification information (e.g., S-TMSI) of the UE, and is used to notify the AMF that the AMF requests the UE to allocate a TA list in the LTE network. After receiving the query request message sent by the gNB, the AMF sends the query request message to the mobility management entity MME, where the query request message includes identification information (e.g., S-TMSI) of the UE, and is used to notify the MME that the MME requests the TA list allocated to the UE in the LTE network. And after receiving the query request message of the AMF, the MME sends a response message to the AMF, wherein the response message comprises the TA list distributed by the UE in the LTE network. And after receiving the response message of the MME, the AMF sends the response message to the gNB, wherein the response message comprises the TA list distributed by the UE in the LTE network.

On the other hand, if the second network is an LTE network, if the NR base station gNB supports the independent networking SA mode and the dual-connection EN-DC mode between the LTE network and the NR network, the NR base station gNB can obtain the required TA list through the LTE eNB. Optionally, in step 101, sending an inquiry request message to the second network-side device, where the inquiry request message includes:

step 102 comprises:

Here, for the case where the second network is an LTE network and the NR base station gNB supports the SA mode and the EN-DC mode, the first base station NR base station gNB transmits the query request message to the second base station LTE eNB through a network interface (e.g., an X2 interface) with the LTE eNB and receives the TA list through the network interface.

For example, in the inter-RAT network architecture of LTE and NR shown in fig. 4, the NR base station gNB is connected to the NGC, while the LTE base station LTE eNB is connected to the EPC, and the NR base station gNB supports both SA mode and EN-DC mode, interfacing with the LTE base station LTE eNB through X2.

When the UE is connected to the NR network and is in a connected state, the NR base station gNB sends a query request message to the LTE base station eNB, as shown in fig. 5. The query request message includes identification information (e.g., S-TMSI) of the UE, and is used to notify the eNB that the eNB requests the UE to allocate a TA list in the LTE network. After receiving the request message from the NR base station, the LTE base station sends a request message to the MME, where the request message includes identification information (e.g., S-TMSI) of the UE, and is used to notify the MME that the MME requests a TA list allocated to the UE in the LTE network. And after receiving the request message of the LTE base station, the MME sends a response message to the LTE base station, wherein the response message comprises the TA list distributed by the UE in the LTE network. And after receiving the response message of the MME, the LTE base station sends the response message to the NR base station, wherein the response message comprises the TA list distributed by the UE in the LTE network.

If the second network is an LTE network and both the LTE base station and the NR base station are connected to a core network device, such as an AMF, optionally, in step 101, sending an inquiry request message to the second network side device, where the inquiry request message includes:

step 102 comprises:

Here, when the second network is an LTE network and both the first base station and the third base station of the LTE base station are connected to the core network device, the query request message is sent to the core network device connected to the first base station through the NG interface, and the TA list is received through the NG interface.

Considering whether the TA list is allocated to the core network device connected to the first base station, which receives the query request message sent by the first base station, if the TA list is allocated to the UE, the TA list is directly fed back; and if the TA list is not distributed to the UE, the TA list is fed back after being inquired to other core network equipment.

For example, in the inter-RAT network architecture of lte and NR shown in fig. 6, NR base stations gNB and lte base stations lte eNB are both connected to the NGC, and both gNB and eNB are connected to the NGC through a User Plane (UP) interface and a Control Plane (CP) interface.

When the UE is connected to the NR network and is in a connected state, the gNB sends a query request message to the core network device, such as the AMF, connected thereto, as shown in fig. 7. The query request message includes identification information (e.g., S-TMSI) of the UE, and is used to notify the AMF that the AMF requests the UE to allocate a TA list in the lte network. After receiving the query request message from the NR base station, the AMF finds that the TA list of the UE in the lte is also allocated by the AMF, and then the AMF replies a response message to the gNB, where the response message includes the TA list allocated by the UE in the lte network. If the AMF finds that the TA list of the UE in the eLTE is distributed by other AMFs, the current AMF acquires the TA list information from other AMFs firstly, and then replies a response message to the gNB.

In summary, in the method according to the embodiment of the present invention, for a ue in a first network and in a connected state, a first base station sends an inquiry request message to a second network side device, inquires a tracking area list of the ue in the second network, and then receives a tracking area list fed back by the second network side device according to the inquiry request message. Therefore, when the first base station indicates the user equipment to enter the inactive state, the received tracking area list can be configured to the user equipment in the indication information, so that the user equipment in the inactive state cannot update the tracking area after being subsequently switched to the second network, and therefore the inactive state can be continuously maintained after being subsequently switched back to the first network, the signaling cost is reduced, and the time delay for the user equipment to recover the connection is shortened.

As shown in fig. 8, a method for processing a handover between different networks according to an embodiment of the present invention is applied to a second network device, and includes:

step 801, receiving an inquiry request message sent by a first base station when a user equipment in a first network is in a connected state, where the inquiry request message is used to inquire a tracking area list of the user equipment in a second network, where the first base station is a base station of the first network, and the first network and the second network are different networks;

and step 802, feeding back a tracking area list corresponding to the query request message.

Through the

above steps

801 and 802, the network side device applying the method of the embodiment of the present invention receives the query request message sent by the first base station for the user equipment in the first network and in the connected state, so as to feed back the tracking area list corresponding to the query request message to the first base station. Therefore, when the first base station indicates the user equipment to enter the inactive state, the received tracking area list can be configured to the user equipment in the indication information, so that the user equipment in the inactive state cannot update the tracking area after being subsequently switched to the second network, and therefore the inactive state can be continuously maintained after being subsequently switched back to the first network, the signaling cost is reduced, and the time delay for the user equipment to recover the connection is shortened.

Optionally, the network side device is a second base station;

in step 801, receiving an inquiry request message sent by a first base station includes:

step 802 includes:

Optionally, the network side device is a core network device;

Optionally, step 802 comprises:

feeding back the tracking area list through the NG interface.

It should be noted that, the method is matched with the method applied to the first base station to achieve the purpose of acquiring the tracking area list of the user equipment in the second network for the user equipment in the first network and in the connected state, and the implementation manner of the embodiment of the method applied to the first base station is applicable to the method and can also achieve the same technical effect.

As shown in fig. 13, an embodiment of the present invention provides a method for processing a handover between different networks, where the method is applied to a user equipment, and includes:

step 1301, receiving a tracking area list sent by a first base station; wherein the content of the first and second substances,

Because the tracking area list is the list of the first base station (the base station of the first network) in the second network when a user equipment is in the first network and in the connected state, the user equipment can be inquired and updated based on the tracking area list after being subsequently switched to the second network by receiving the tracking area list, and thus the inactive state can be continuously maintained after being switched back to the first network, so that the problems that the time delay of the user equipment entering the connected state is increased, the network needs to establish connection for the UE again, and the signaling overhead is high can be avoided.

As shown in fig. 9, an embodiment of the present invention provides a first network-side device, where the first network-side device is a first base station, and the first base station is a base station of a first network, and includes a transceiver 910, a memory 920, a processor 930, and a computer program stored in the memory and operable on the processor; the processor 930, when executing the program, performs the steps of:

Optionally, the transceiver 910 is configured to:

Optionally, the transceiver 910 is further configured to:

Optionally, the transceiver is further configured to:

and sending the tracking area list to the user equipment.

The first base station sends an inquiry request message to the second network side equipment aiming at the user equipment which is in the first network and is in a connection state, inquires a tracking area list of the user equipment in the second network, and then receives the tracking area list fed back by the second network side equipment according to the inquiry request message. Therefore, when the first base station indicates the user equipment to enter the inactive state, the received tracking area list can be configured to the user equipment in the indication information, so that the user equipment in the inactive state cannot update the tracking area after being subsequently switched to the second network, and therefore the inactive state can be continuously maintained after being subsequently switched back to the first network, the signaling cost is reduced, and the time delay for the user equipment to recover the connection is shortened.

The first network side device provided in the embodiment of the present invention may execute the method embodiment described above, and the implementation principle and the technical effect are similar, which are not described herein again.

Wherein the transceiver 910 is configured to receive and transmit data under the control of the processor 930. In FIG. 9, the bus architecture may include any number of interconnected buses and bridges, with one or more processors, represented by processor 930, and various circuits, represented by memory 920, being linked together. The bus architecture may also link together various other circuits such as peripherals, voltage regulators, power management circuits, and the like, which are well known in the art, and therefore, will not be described any further herein. The bus interface provides an interface. The transceiver 910 may be a number of elements including a transmitter and a receiver that provide a means for communicating with various other apparatus over a transmission medium. The processor 930 is responsible for managing the bus architecture and general processing, and the memory 920 may store data used by the processor 930 in performing operations.

The processor 930 is responsible for managing the bus architecture and general processing, and the memory 920 may store data used by the processor 930 in performing operations.

As shown in fig. 10, the embodiment of the present invention provides a second network-side device, which includes a transceiver 1001, a memory 1005, a processor 1004, and a computer program stored in the memory and running on the processor; the processor 1004, when executing the program, performs the following steps:

Optionally, the network side device is a second base station;

the transceiver 1001 is configured to:

Optionally, the processor 1004 is further configured to:

Optionally, the network side device is a core network device;

the transceiver 1001 is further configured to:

Optionally, the transceiver 1001 is further configured to:

feeding back the tracking area list through the NG interface.

The second network side device receives an inquiry request message sent by the first base station for the user equipment in the first network and in a connected state, and feeds back a tracking area list corresponding to the inquiry request message to the first base station. Therefore, when the first base station indicates the user equipment to enter the inactive state, the received tracking area list can be configured to the user equipment in the indication information, so that the user equipment in the inactive state cannot update the tracking area after being subsequently switched to the second network, and therefore the inactive state can be continuously maintained after being subsequently switched back to the first network, the signaling cost is reduced, and the time delay for the user equipment to recover the connection is shortened.

The second network side device provided in the embodiment of the present invention may execute the method embodiment described above, and the implementation principle and the technical effect are similar, which are not described herein again.

In fig. 10, a bus architecture (represented by bus 1000), bus 1000 may include any number of interconnected buses and bridges, bus 1000 linking together various circuits including one or more processors, represented by processor 1004, and memory, represented by memory 1005. The bus 1000 may also link together various other circuits such as peripherals, voltage regulators, power management circuits, and the like, which are well known in the art, and therefore, will not be described any further herein. A bus interface 1003 provides an interface between the bus 1000 and the transceiver 1001. The transceiver 1001 may be one element or may be multiple elements, such as multiple receivers and transmitters, providing a means for communicating with various other apparatus over a transmission medium. Data processed by processor 1004 is transmitted over a wireless medium via antenna 1002, and further, antenna 1002 receives data and transmits data to processor 1004.

The processor 1004 is responsible for managing the bus 1000 and general processing, and may also provide various functions including timing, peripheral interfaces, voltage regulation, power management, and other control functions. And the memory 1005 may be used for storing data used by the processor 1004 in performing operations.

Alternatively, the processor 1004 may be a CPU, ASIC, FPGA or CPLD.

As shown in fig. 14, an embodiment of the present invention provides a user equipment, including a transceiver 1410, a memory 1420, a processor 1430, and a computer program stored on the memory 1420 and executable on the processor 1430; when the processor 1430 executes the program, the transceiver 1410 is configured to receive a tracking area list transmitted by a first base station; wherein the content of the first and second substances,

A transceiver 1410 for receiving and transmitting data under the control of the processor 1430.

The user equipment receives the tracking area list, and because the tracking area list is the tracking area list of the first base station (the base station of the first network) in the second network when the user equipment is in the first network and in the connected state, the inquired tracking area list of the user equipment in the second network can not be updated based on the tracking area list after being subsequently switched to the second network, so that the inactive state can be continuously maintained after the user equipment is switched back to the first network, and thus, the problems that the time delay of the user equipment entering the connected state is increased, the network needs to establish connection for the UE again, and the signaling overhead is also large can be avoided.

The user equipment provided by the embodiment of the present invention may execute the method embodiments described above, and the implementation principle and technical effect are similar, which are not described herein again.

In fig. 14, among other things, the bus architecture may include any number of interconnected buses and bridges, with one or more processors, represented by processor 1430, and various circuits, represented by memory 1420, linked together. The bus architecture may also link together various other circuits such as peripherals, voltage regulators, power management circuits, and the like, which are well known in the art, and therefore, will not be described any further herein. The bus interface provides an interface. The transceiver 1410 may be a number of elements including a transmitter and a receiver that provide a means for communicating with various other apparatus over a transmission medium. The user interface 1440 may also be an interface capable of interfacing with a desired device for different user devices, including but not limited to a keypad, display, speaker, microphone, joystick, etc.

The processor 1430 is responsible for managing the bus architecture and general processing, and the memory 1420 may store data used by the processor 1430 in performing operations.

As shown in fig. 11, an embodiment of the present invention further provides a device for processing handover between different networks, where the device is applied to a first base station, and the first base station is a base station of a first network, and includes:

a first sending module 1110, configured to send, when a user equipment in the first network is in a connected state, an inquiry request message to a second network-side device, where the inquiry request message is used to inquire a tracking area list of the user equipment in a second network, where the first network and the second network are different networks;

a first receiving module 1120, configured to receive a tracking area list fed back by the second network side device according to the query request message.

Optionally, the first sending module 1110 is further configured to:

the first receiving module 1120 is further configured to:

Optionally, the first sending module 1110 is further configured to:

the first receiving module 1120 is further configured to:

Optionally, the first sending module 1110 is further configured to:

the first receiving module 1120 is further configured to:

Optionally, the apparatus further comprises:

a tracking area list sending module, configured to send the tracking area list to the user equipment.

The device sends an inquiry request message to a second network side device aiming at a user device which is in a first network and is in a connection state, inquires a tracking area list of the user device in the second network, and then receives the tracking area list fed back by the second network side device according to the inquiry request message. Therefore, when the first base station indicates the user equipment to enter the inactive state, the received tracking area list can be configured to the user equipment in the indication information, so that the user equipment in the inactive state cannot update the tracking area after being subsequently switched to the second network, and therefore the inactive state can be continuously maintained after being subsequently switched back to the first network, the signaling cost is reduced, and the time delay for the user equipment to recover the connection is shortened.

The apparatus provided in the embodiment of the present invention may implement the method embodiments, and the implementation principle and the technical effect are similar, which are not described herein again.

The device applies the method for processing the different network handover applied to the first base station, and the method applied to the first base station is suitable for the device and can achieve the same technical effect.

As shown in fig. 12, an embodiment of the present invention further provides a device for processing a handover between different networks, where the device is applied to a second network side device, and the device includes:

a second receiving module 1210, configured to receive, when a ue in a first network is in a connected state, an inquiry request message sent by a first base station, where the inquiry request message is used to inquire a tracking area list of the ue in a second network, where the first base station is a base station of the first network, and the first network and the second network are different networks;

a second sending module 1220, configured to feed back a tracking area list corresponding to the query request message.

Optionally, the network side device is a second base station;

the second receiving module 1210 is further configured to:

the second sending module 1220 is further configured to:

Optionally, the apparatus further comprises:

and the query module is used for querying the tracking area list of the user equipment in the second network from the core network equipment according to the query request message.

Optionally, the network side device is a core network device;

the second receiving module 1210 is further configured to:

Optionally, the second sending module 1220 is further configured to:

feeding back the tracking area list through the NG interface.

The device receives an inquiry request message sent by a first base station aiming at user equipment which is in a first network and is in a connection state, and feeds back a tracking area list corresponding to the inquiry request message to the first base station. Therefore, when the first base station indicates the user equipment to enter the inactive state, the received tracking area list can be configured to the user equipment in the indication information, so that the user equipment in the inactive state cannot update the tracking area after being subsequently switched to the second network, and therefore the inactive state can be continuously maintained after being subsequently switched back to the first network, the signaling cost is reduced, and the time delay for the user equipment to recover the connection is shortened.

The device applies the method for processing the different network switching applied to the network side equipment, and the method applied to the network side equipment is suitable for the device and can achieve the same technical effect.

As shown in fig. 15, an embodiment of the present invention further provides a device for processing a handover between different networks, where the device is applied to a user equipment, and the device includes:

a third receiving module 1510, configured to receive a tracking area list sent by the first base station; wherein the content of the first and second substances,

The device receives the tracking area list, and because the tracking area list is the list of the first base station (the base station of the first network) in the second network when the user equipment is in the first network and in the connected state, the inquired tracking area list of the user equipment in the second network can not be updated based on the tracking area list after being subsequently switched to the second network, so that the inactive state can be continuously maintained after the user equipment is switched back to the first network, and thus, the problems that the time delay of the user equipment entering the connected state is increased, the network needs to establish connection for the UE again, and the signaling overhead is also large can be avoided.

The device applies the method for processing the switching of the different networks applied to the user equipment, and the method applied to the user equipment is suitable for the device and can achieve the same technical effect.

Another embodiment of the present invention also provides a computer-readable storage medium, on which a computer program is stored, which when executed by a processor, implements the steps in the method for processing a handover between different networks applied to a first base station, or the method for processing a handover between different networks applied to a second network-side device, or the method for processing a handover between different networks applied to a user equipment, as described above.

Computer-readable media, including both non-transitory and non-transitory, removable and non-removable media, may implement information storage by any method or technology. The information may be computer readable instructions, data structures, modules of a program, or other data. Examples of computer storage media include, but are not limited to, phase change memory (PRAM), Static Random Access Memory (SRAM), Dynamic Random Access Memory (DRAM), other types of Random Access Memory (RAM), Read Only Memory (ROM), Electrically Erasable Programmable Read Only Memory (EEPROM), flash memory or other memory technology, compact disc read only memory (CD-ROM), Digital Versatile Discs (DVD) or other optical storage, magnetic cassettes, magnetic tape magnetic disk storage or other magnetic storage devices, or any other non-transmission medium that can be used to store information that can be accessed by a computing device. As defined herein, a computer readable medium does not include a transitory computer readable medium such as a modulated data signal and a carrier wave.

It is further noted that many of the functional units described in this specification have been labeled as modules, in order to more particularly emphasize their implementation independence.

In embodiments of the present invention, modules may be implemented in software for execution by various types of processors. An identified module of executable code may, for instance, comprise one or more physical or logical blocks of computer instructions which may, for instance, be constructed as an object, procedure, or function. Nevertheless, the executables of an identified module need not be physically located together, but may comprise disparate instructions stored in different bits which, when joined logically together, comprise the module and achieve the stated purpose for the module.

Indeed, a module of executable code may be a single instruction, or many instructions, and may even be distributed over several different code segments, among different programs, and across several memory devices. Likewise, operational data may be identified within the modules and may be embodied in any suitable form and organized within any suitable type of data structure. The operational data may be collected as a single data set, or may be distributed over different locations including over different storage devices, and may exist, at least partially, merely as electronic signals on a system or network.

When a module can be implemented by software, considering the level of existing hardware technology, a module implemented by software may build a corresponding hardware circuit to implement a corresponding function, without considering cost, and the hardware circuit may include a conventional Very Large Scale Integration (VLSI) circuit or a gate array and an existing semiconductor such as a logic chip, a transistor, or other discrete components. A module may also be implemented in programmable hardware devices such as field programmable gate arrays, programmable array logic, programmable logic devices or the like.

The exemplary embodiments described above are described with reference to the drawings, and many different forms and embodiments of the invention may be made without departing from the spirit and teaching of the invention, therefore, the invention is not to be construed as limited to the exemplary embodiments set forth herein. Rather, these exemplary embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art. In the drawings, the size and relative sizes of elements may be exaggerated for clarity. The terminology used herein is for the purpose of describing particular example embodiments only and is not intended to be limiting. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof. Unless otherwise indicated, a range of values, when stated, includes the upper and lower limits of the range and any subranges therebetween.

While the foregoing is directed to the preferred embodiment of the present invention, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention as defined in the appended claims.

Claims

1. A method for processing different network handover is applied to a first network side device, the first network side device is a first base station, and the first base station is a base station of a first network, and the method is characterized by comprising the following steps:

2. The method of claim 1, wherein the query request message carries identification information of the UE.

3. The method according to claim 1, wherein the sending the query request message to the second network-side device includes:

4. The method according to claim 1, wherein the sending the query request message to the second network-side device includes:

5. The method according to claim 1, wherein the sending the query request message to the second network-side device includes:

6. The method of claim 5, wherein the tracking area list is allocated to the user equipment by a core network device connected to the first base station; alternatively, the first and second electrodes may be,

7. The method according to any one of claims 1 to 6, wherein after the receiving the tracking area list fed back by the second network-side device according to the query request message, the method further comprises:

and sending the tracking area list to the user equipment.

8. A method for processing heterogeneous network handover is applied to a second network side device, and is characterized by comprising the following steps:

9. The method of claim 8, wherein the query request message carries identification information of the ue.

10. The method of claim 8, wherein the network side device is a second base station;

11. The method of claim 10, further comprising, after said receiving the query request message over a network interface with the first base station:

12. The method of claim 8, wherein the network side device is a core network device;

13. The method of claim 12, wherein feeding back the tracking area list corresponding to the query request message comprises:

feeding back the tracking area list through the NG interface.

14. The method of claim 13,

when the second network is an enhanced LTE network, the tracking area list is allocated to the user equipment by the core network equipment; or, the tracking area list is obtained by querying, by the core network device, the core network device that is not connected to the first base station.

15. A method for processing heterogeneous network handover is applied to user equipment, and is characterized by comprising the following steps:

16. A network side device is a first base station which is a base station of a first network and comprises a transceiver, a memory, a processor and a computer program which is stored on the memory and can run on the processor; wherein the processor implements the following steps when executing the program:

17. The device of claim 16, wherein the query request message carries identification information of the ue.

18. The device of claim 16, wherein the transceiver is configured to:

19. The device of claim 16, wherein the transceiver is further configured to:

20. The device of claim 16, wherein the transceiver is further configured to:

21. The apparatus of claim 20, wherein the tracking area list is allocated to the user equipment by a core network device connected to the first base station; alternatively, the first and second electrodes may be,

22. The apparatus of any of claims 16-21, wherein the transceiver is further configured to:

and sending the tracking area list to the user equipment.

23. A network-side device comprising a transceiver, a memory, a processor, and a computer program stored on the memory and executable on the processor; wherein the processor implements the following steps when executing the program:

24. The device of claim 23, wherein the query request message carries identification information of the ue.

25. The device of claim 23, wherein the network-side device is a second base station;

the transceiver is to:

26. The device of claim 25, wherein the processor is further configured to:

27. The device according to claim 23, wherein the network side device is a core network device;

the transceiver is further configured to:

28. The device of claim 27, wherein the transceiver is further configured to:

feeding back the tracking area list through the NG interface.

29. The apparatus of claim 27,

30. A user equipment comprising a transceiver, a memory, a processor and a computer program stored on the memory and executable on the processor; wherein when the processor executes the program, the transceiver is configured to receive a tracking area list sent by a first base station; wherein the content of the first and second substances,

31. A device for processing a handover between different networks is applied to a first base station, wherein the first base station is a base station of a first network, and the device comprises:

32. A device for processing a handover between different networks is applied to a second network side device, and comprises:

33. A device for processing a handover between different networks is applied to a user equipment, and the device comprises:

34. A computer-readable storage medium, on which a computer program is stored, which, when being executed by a processor, implements the method for handling a handover between different networks of any one of claims 1 to 7, or the method for handling a handover between different networks of any one of claims 8 to 14, or the method for handling a handover between different networks of claim 15.